diff options
Diffstat (limited to 'drivers/staging/vme')
25 files changed, 1285 insertions, 9294 deletions
diff --git a/drivers/staging/vme/Kconfig b/drivers/staging/vme/Kconfig deleted file mode 100644 index 6411ae51ed3..00000000000 --- a/drivers/staging/vme/Kconfig +++ /dev/null @@ -1,19 +0,0 @@ -# -# VME configuration. -# - -menuconfig VME_BUS - tristate "VME bridge support" - depends on PCI - ---help--- - If you say Y here you get support for the VME bridge Framework. - -if VME_BUS - -source "drivers/staging/vme/bridges/Kconfig" - -source "drivers/staging/vme/devices/Kconfig" - -source "drivers/staging/vme/boards/Kconfig" - -endif # VME diff --git a/drivers/staging/vme/Makefile b/drivers/staging/vme/Makefile index b4ea3f8d0a5..accdb72e39e 100644 --- a/drivers/staging/vme/Makefile +++ b/drivers/staging/vme/Makefile @@ -1,8 +1 @@ -# -# Makefile for the VME bridge device drivers. -# -obj-$(CONFIG_VME_BUS) += vme.o - -obj-y += bridges/ obj-y += devices/ -obj-y += boards/ diff --git a/drivers/staging/vme/TODO b/drivers/staging/vme/TODO deleted file mode 100644 index 82c222b4a14..00000000000 --- a/drivers/staging/vme/TODO +++ /dev/null @@ -1,70 +0,0 @@ - TODO - ==== - -API -=== - -Master window broadcast select mask ------------------------------------ - -API currently provides no method to set or get Broadcast Select mask. Suggest -somthing like: - - int vme_master_bmsk_set (struct vme_resource *res, int mask); - int vme_master_bmsk_get (struct vme_resource *res, int *mask); - - -Interrupt Generation --------------------- - -Add optional timeout when waiting for an IACK. - - -CR/CSR Buffer -------------- - -The VME API provides no functions to access the buffer mapped into the CR/CSR -space. - - -Mailboxes ---------- - -Whilst not part of the VME specification, they are provided by a number of -chips. They are currently not supported at all by the API. - - -Core -==== - -- Improve generic sanity checks (Such as does an offset and size fit within a - window and parameter checking). - -Bridge Support -============== - -Tempe (tsi148) --------------- - -- 2eSST Broadcast mode. -- Mailboxes unsupported. -- Improve error detection. -- Control of prefetch size, threshold. -- Arbiter control -- Requestor control - -Universe II (ca91c142) ----------------------- - -- Mailboxes unsupported. -- Error Detection. -- Control of prefetch size, threshold. -- Arbiter control -- Requestor control -- Slot detection - -Universe I (ca91x042) ---------------------- - -Currently completely unsupported. - diff --git a/drivers/staging/vme/boards/Kconfig b/drivers/staging/vme/boards/Kconfig deleted file mode 100644 index 76163135352..00000000000 --- a/drivers/staging/vme/boards/Kconfig +++ /dev/null @@ -1,9 +0,0 @@ -comment "VME Board Drivers" - -config VMIVME_7805 - tristate "VMIVME-7805" - help - If you say Y here you get support for the VMIVME-7805 board. - This board has an additional control interface to the Universe II - chip. This driver has to be included if you want to access VME bus - with VMIVME-7805 board. diff --git a/drivers/staging/vme/boards/Makefile b/drivers/staging/vme/boards/Makefile deleted file mode 100644 index 43658340885..00000000000 --- a/drivers/staging/vme/boards/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -# -# Makefile for the VME board drivers. -# - -obj-$(CONFIG_VMIVME_7805) += vme_vmivme7805.o diff --git a/drivers/staging/vme/boards/vme_vmivme7805.c b/drivers/staging/vme/boards/vme_vmivme7805.c deleted file mode 100644 index 80eaa0c4fe1..00000000000 --- a/drivers/staging/vme/boards/vme_vmivme7805.c +++ /dev/null @@ -1,123 +0,0 @@ -/* - * Support for the VMIVME-7805 board access to the Universe II bridge. - * - * Author: Arthur Benilov <arthur.benilov@iba-group.com> - * Copyright 2010 Ion Beam Application, Inc. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/errno.h> -#include <linux/pci.h> -#include <linux/poll.h> -#include <linux/io.h> - -#include "vme_vmivme7805.h" - -static int __init vmic_init(void); -static int vmic_probe(struct pci_dev *, const struct pci_device_id *); -static void vmic_remove(struct pci_dev *); -static void __exit vmic_exit(void); - -/** Base address to access FPGA register */ -static void *vmic_base; - -static char driver_name[] = "vmivme_7805"; - -static struct pci_device_id vmic_ids[] = { - { PCI_DEVICE(PCI_VENDOR_ID_VMIC, PCI_DEVICE_ID_VTIMR) }, - { }, -}; - -static struct pci_driver vmic_driver = { - .name = driver_name, - .id_table = vmic_ids, - .probe = vmic_probe, - .remove = vmic_remove, -}; - -static int __init vmic_init(void) -{ - return pci_register_driver(&vmic_driver); -} - -static int vmic_probe(struct pci_dev *pdev, const struct pci_device_id *id) -{ - int retval; - u32 data; - - /* Enable the device */ - retval = pci_enable_device(pdev); - if (retval) { - dev_err(&pdev->dev, "Unable to enable device\n"); - goto err; - } - - /* Map Registers */ - retval = pci_request_regions(pdev, driver_name); - if (retval) { - dev_err(&pdev->dev, "Unable to reserve resources\n"); - goto err_resource; - } - - /* Map registers in BAR 0 */ - vmic_base = ioremap_nocache(pci_resource_start(pdev, 0), 16); - if (!vmic_base) { - dev_err(&pdev->dev, "Unable to remap CRG region\n"); - retval = -EIO; - goto err_remap; - } - - /* Clear the FPGA VME IF contents */ - iowrite32(0, vmic_base + VME_CONTROL); - - /* Clear any initial BERR */ - data = ioread32(vmic_base + VME_CONTROL) & 0x00000FFF; - data |= BM_VME_CONTROL_BERRST; - iowrite32(data, vmic_base + VME_CONTROL); - - /* Enable the vme interface and byte swapping */ - data = ioread32(vmic_base + VME_CONTROL) & 0x00000FFF; - data = data | BM_VME_CONTROL_MASTER_ENDIAN | - BM_VME_CONTROL_SLAVE_ENDIAN | - BM_VME_CONTROL_ABLE | - BM_VME_CONTROL_BERRI | - BM_VME_CONTROL_BPENA | - BM_VME_CONTROL_VBENA; - iowrite32(data, vmic_base + VME_CONTROL); - - return 0; - -err_remap: - pci_release_regions(pdev); -err_resource: - pci_disable_device(pdev); -err: - return retval; -} - -static void vmic_remove(struct pci_dev *pdev) -{ - iounmap(vmic_base); - pci_release_regions(pdev); - pci_disable_device(pdev); - -} - -static void __exit vmic_exit(void) -{ - pci_unregister_driver(&vmic_driver); -} - -MODULE_DESCRIPTION("VMIVME-7805 board support driver"); -MODULE_AUTHOR("Arthur Benilov <arthur.benilov@iba-group.com>"); -MODULE_LICENSE("GPL"); - -module_init(vmic_init); -module_exit(vmic_exit); - diff --git a/drivers/staging/vme/boards/vme_vmivme7805.h b/drivers/staging/vme/boards/vme_vmivme7805.h deleted file mode 100644 index 44c2c449808..00000000000 --- a/drivers/staging/vme/boards/vme_vmivme7805.h +++ /dev/null @@ -1,37 +0,0 @@ -/* - * vmivme_7805.h - * - * Support for the VMIVME-7805 board access to the Universe II bridge. - * - * Author: Arthur Benilov <arthur.benilov@iba-group.com> - * Copyright 2010 Ion Beam Application, Inc. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ - - -#ifndef _VMIVME_7805_H -#define _VMIVME_7805_H - -#ifndef PCI_VENDOR_ID_VMIC -#define PCI_VENDOR_ID_VMIC 0x114A -#endif - -#ifndef PCI_DEVICE_ID_VTIMR -#define PCI_DEVICE_ID_VTIMR 0x0004 -#endif - -#define VME_CONTROL 0x0000 -#define BM_VME_CONTROL_MASTER_ENDIAN 0x0001 -#define BM_VME_CONTROL_SLAVE_ENDIAN 0x0002 -#define BM_VME_CONTROL_ABLE 0x0004 -#define BM_VME_CONTROL_BERRI 0x0040 -#define BM_VME_CONTROL_BERRST 0x0080 -#define BM_VME_CONTROL_BPENA 0x0400 -#define BM_VME_CONTROL_VBENA 0x0800 - -#endif /* _VMIVME_7805_H */ - diff --git a/drivers/staging/vme/bridges/Kconfig b/drivers/staging/vme/bridges/Kconfig deleted file mode 100644 index 9331064e047..00000000000 --- a/drivers/staging/vme/bridges/Kconfig +++ /dev/null @@ -1,15 +0,0 @@ -comment "VME Bridge Drivers" - -config VME_CA91CX42 - tristate "Universe II" - depends on VIRT_TO_BUS - help - If you say Y here you get support for the Tundra CA91C142 - (Universe II) VME bridge chip. - -config VME_TSI148 - tristate "Tempe" - depends on VIRT_TO_BUS - help - If you say Y here you get support for the Tundra TSI148 VME bridge - chip. diff --git a/drivers/staging/vme/bridges/Makefile b/drivers/staging/vme/bridges/Makefile deleted file mode 100644 index 59638afcd50..00000000000 --- a/drivers/staging/vme/bridges/Makefile +++ /dev/null @@ -1,2 +0,0 @@ -obj-$(CONFIG_VME_CA91CX42) += vme_ca91cx42.o -obj-$(CONFIG_VME_TSI148) += vme_tsi148.o diff --git a/drivers/staging/vme/bridges/vme_ca91cx42.c b/drivers/staging/vme/bridges/vme_ca91cx42.c deleted file mode 100644 index 4d745623211..00000000000 --- a/drivers/staging/vme/bridges/vme_ca91cx42.c +++ /dev/null @@ -1,1924 +0,0 @@ -/* - * Support for the Tundra Universe I/II VME-PCI Bridge Chips - * - * Author: Martyn Welch <martyn.welch@ge.com> - * Copyright 2008 GE Intelligent Platforms Embedded Systems, Inc. - * - * Based on work by Tom Armistead and Ajit Prem - * Copyright 2004 Motorola Inc. - * - * Derived from ca91c042.c by Michael Wyrick - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ - -#include <linux/module.h> -#include <linux/mm.h> -#include <linux/types.h> -#include <linux/errno.h> -#include <linux/pci.h> -#include <linux/dma-mapping.h> -#include <linux/poll.h> -#include <linux/interrupt.h> -#include <linux/spinlock.h> -#include <linux/sched.h> -#include <linux/slab.h> -#include <linux/time.h> -#include <linux/io.h> -#include <linux/uaccess.h> - -#include "../vme.h" -#include "../vme_bridge.h" -#include "vme_ca91cx42.h" - -static int __init ca91cx42_init(void); -static int ca91cx42_probe(struct pci_dev *, const struct pci_device_id *); -static void ca91cx42_remove(struct pci_dev *); -static void __exit ca91cx42_exit(void); - -/* Module parameters */ -static int geoid; - -static char driver_name[] = "vme_ca91cx42"; - -static const struct pci_device_id ca91cx42_ids[] = { - { PCI_DEVICE(PCI_VENDOR_ID_TUNDRA, PCI_DEVICE_ID_TUNDRA_CA91C142) }, - { }, -}; - -static struct pci_driver ca91cx42_driver = { - .name = driver_name, - .id_table = ca91cx42_ids, - .probe = ca91cx42_probe, - .remove = ca91cx42_remove, -}; - -static u32 ca91cx42_DMA_irqhandler(struct ca91cx42_driver *bridge) -{ - wake_up(&(bridge->dma_queue)); - - return CA91CX42_LINT_DMA; -} - -static u32 ca91cx42_LM_irqhandler(struct ca91cx42_driver *bridge, u32 stat) -{ - int i; - u32 serviced = 0; - - for (i = 0; i < 4; i++) { - if (stat & CA91CX42_LINT_LM[i]) { - /* We only enable interrupts if the callback is set */ - bridge->lm_callback[i](i); - serviced |= CA91CX42_LINT_LM[i]; - } - } - - return serviced; -} - -/* XXX This needs to be split into 4 queues */ -static u32 ca91cx42_MB_irqhandler(struct ca91cx42_driver *bridge, int mbox_mask) -{ - wake_up(&(bridge->mbox_queue)); - - return CA91CX42_LINT_MBOX; -} - -static u32 ca91cx42_IACK_irqhandler(struct ca91cx42_driver *bridge) -{ - wake_up(&(bridge->iack_queue)); - - return CA91CX42_LINT_SW_IACK; -} - -static u32 ca91cx42_VERR_irqhandler(struct vme_bridge *ca91cx42_bridge) -{ - int val; - struct ca91cx42_driver *bridge; - - bridge = ca91cx42_bridge->driver_priv; - - val = ioread32(bridge->base + DGCS); - - if (!(val & 0x00000800)) { - dev_err(ca91cx42_bridge->parent, "ca91cx42_VERR_irqhandler DMA " - "Read Error DGCS=%08X\n", val); - } - - return CA91CX42_LINT_VERR; -} - -static u32 ca91cx42_LERR_irqhandler(struct vme_bridge *ca91cx42_bridge) -{ - int val; - struct ca91cx42_driver *bridge; - - bridge = ca91cx42_bridge->driver_priv; - - val = ioread32(bridge->base + DGCS); - - if (!(val & 0x00000800)) - dev_err(ca91cx42_bridge->parent, "ca91cx42_LERR_irqhandler DMA " - "Read Error DGCS=%08X\n", val); - - return CA91CX42_LINT_LERR; -} - - -static u32 ca91cx42_VIRQ_irqhandler(struct vme_bridge *ca91cx42_bridge, - int stat) -{ - int vec, i, serviced = 0; - struct ca91cx42_driver *bridge; - - bridge = ca91cx42_bridge->driver_priv; - - - for (i = 7; i > 0; i--) { - if (stat & (1 << i)) { - vec = ioread32(bridge->base + - CA91CX42_V_STATID[i]) & 0xff; - - vme_irq_handler(ca91cx42_bridge, i, vec); - - serviced |= (1 << i); - } - } - - return serviced; -} - -static irqreturn_t ca91cx42_irqhandler(int irq, void *ptr) -{ - u32 stat, enable, serviced = 0; - struct vme_bridge *ca91cx42_bridge; - struct ca91cx42_driver *bridge; - - ca91cx42_bridge = ptr; - - bridge = ca91cx42_bridge->driver_priv; - - enable = ioread32(bridge->base + LINT_EN); - stat = ioread32(bridge->base + LINT_STAT); - - /* Only look at unmasked interrupts */ - stat &= enable; - - if (unlikely(!stat)) - return IRQ_NONE; - - if (stat & CA91CX42_LINT_DMA) - serviced |= ca91cx42_DMA_irqhandler(bridge); - if (stat & (CA91CX42_LINT_LM0 | CA91CX42_LINT_LM1 | CA91CX42_LINT_LM2 | - CA91CX42_LINT_LM3)) - serviced |= ca91cx42_LM_irqhandler(bridge, stat); - if (stat & CA91CX42_LINT_MBOX) - serviced |= ca91cx42_MB_irqhandler(bridge, stat); - if (stat & CA91CX42_LINT_SW_IACK) - serviced |= ca91cx42_IACK_irqhandler(bridge); - if (stat & CA91CX42_LINT_VERR) - serviced |= ca91cx42_VERR_irqhandler(ca91cx42_bridge); - if (stat & CA91CX42_LINT_LERR) - serviced |= ca91cx42_LERR_irqhandler(ca91cx42_bridge); - if (stat & (CA91CX42_LINT_VIRQ1 | CA91CX42_LINT_VIRQ2 | - CA91CX42_LINT_VIRQ3 | CA91CX42_LINT_VIRQ4 | - CA91CX42_LINT_VIRQ5 | CA91CX42_LINT_VIRQ6 | - CA91CX42_LINT_VIRQ7)) - serviced |= ca91cx42_VIRQ_irqhandler(ca91cx42_bridge, stat); - - /* Clear serviced interrupts */ - iowrite32(stat, bridge->base + LINT_STAT); - - return IRQ_HANDLED; -} - -static int ca91cx42_irq_init(struct vme_bridge *ca91cx42_bridge) -{ - int result, tmp; - struct pci_dev *pdev; - struct ca91cx42_driver *bridge; - - bridge = ca91cx42_bridge->driver_priv; - - /* Need pdev */ - pdev = container_of(ca91cx42_bridge->parent, struct pci_dev, dev); - - /* Initialise list for VME bus errors */ - INIT_LIST_HEAD(&(ca91cx42_bridge->vme_errors)); - - mutex_init(&(ca91cx42_bridge->irq_mtx)); - - /* Disable interrupts from PCI to VME */ - iowrite32(0, bridge->base + VINT_EN); - - /* Disable PCI interrupts */ - iowrite32(0, bridge->base + LINT_EN); - /* Clear Any Pending PCI Interrupts */ - iowrite32(0x00FFFFFF, bridge->base + LINT_STAT); - - result = request_irq(pdev->irq, ca91cx42_irqhandler, IRQF_SHARED, - driver_name, ca91cx42_bridge); - if (result) { - dev_err(&pdev->dev, "Can't get assigned pci irq vector %02X\n", - pdev->irq); - return result; - } - - /* Ensure all interrupts are mapped to PCI Interrupt 0 */ - iowrite32(0, bridge->base + LINT_MAP0); - iowrite32(0, bridge->base + LINT_MAP1); - iowrite32(0, bridge->base + LINT_MAP2); - - /* Enable DMA, mailbox & LM Interrupts */ - tmp = CA91CX42_LINT_MBOX3 | CA91CX42_LINT_MBOX2 | CA91CX42_LINT_MBOX1 | - CA91CX42_LINT_MBOX0 | CA91CX42_LINT_SW_IACK | - CA91CX42_LINT_VERR | CA91CX42_LINT_LERR | CA91CX42_LINT_DMA; - - iowrite32(tmp, bridge->base + LINT_EN); - - return 0; -} - -static void ca91cx42_irq_exit(struct ca91cx42_driver *bridge, - struct pci_dev *pdev) -{ - /* Disable interrupts from PCI to VME */ - iowrite32(0, bridge->base + VINT_EN); - - /* Disable PCI interrupts */ - iowrite32(0, bridge->base + LINT_EN); - /* Clear Any Pending PCI Interrupts */ - iowrite32(0x00FFFFFF, bridge->base + LINT_STAT); - - free_irq(pdev->irq, pdev); -} - -/* - * Set up an VME interrupt - */ -void ca91cx42_irq_set(struct vme_bridge *ca91cx42_bridge, int level, int state, - int sync) - -{ - struct pci_dev *pdev; - u32 tmp; - struct ca91cx42_driver *bridge; - - bridge = ca91cx42_bridge->driver_priv; - - /* Enable IRQ level */ - tmp = ioread32(bridge->base + LINT_EN); - - if (state == 0) - tmp &= ~CA91CX42_LINT_VIRQ[level]; - else - tmp |= CA91CX42_LINT_VIRQ[level]; - - iowrite32(tmp, bridge->base + LINT_EN); - - if ((state == 0) && (sync != 0)) { - pdev = container_of(ca91cx42_bridge->parent, struct pci_dev, - dev); - - synchronize_irq(pdev->irq); - } -} - -int ca91cx42_irq_generate(struct vme_bridge *ca91cx42_bridge, int level, - int statid) -{ - u32 tmp; - struct ca91cx42_driver *bridge; - - bridge = ca91cx42_bridge->driver_priv; - - /* Universe can only generate even vectors */ - if (statid & 1) - return -EINVAL; - - mutex_lock(&(bridge->vme_int)); - - tmp = ioread32(bridge->base + VINT_EN); - - /* Set Status/ID */ - iowrite32(statid << 24, bridge->base + STATID); - - /* Assert VMEbus IRQ */ - tmp = tmp | (1 << (level + 24)); - iowrite32(tmp, bridge->base + VINT_EN); - - /* Wait for IACK */ - wait_event_interruptible(bridge->iack_queue, 0); - - /* Return interrupt to low state */ - tmp = ioread32(bridge->base + VINT_EN); - tmp = tmp & ~(1 << (level + 24)); - iowrite32(tmp, bridge->base + VINT_EN); - - mutex_unlock(&(bridge->vme_int)); - - return 0; -} - -int ca91cx42_slave_set(struct vme_slave_resource *image, int enabled, - unsigned long long vme_base, unsigned long long size, - dma_addr_t pci_base, vme_address_t aspace, vme_cycle_t cycle) -{ - unsigned int i, addr = 0, granularity; - unsigned int temp_ctl = 0; - unsigned int vme_bound, pci_offset; - struct vme_bridge *ca91cx42_bridge; - struct ca91cx42_driver *bridge; - - ca91cx42_bridge = image->parent; - - bridge = ca91cx42_bridge->driver_priv; - - i = image->number; - - switch (aspace) { - case VME_A16: - addr |= CA91CX42_VSI_CTL_VAS_A16; - break; - case VME_A24: - addr |= CA91CX42_VSI_CTL_VAS_A24; - break; - case VME_A32: - addr |= CA91CX42_VSI_CTL_VAS_A32; - break; - case VME_USER1: - addr |= CA91CX42_VSI_CTL_VAS_USER1; - break; - case VME_USER2: - addr |= CA91CX42_VSI_CTL_VAS_USER2; - break; - case VME_A64: - case VME_CRCSR: - case VME_USER3: - case VME_USER4: - default: - dev_err(ca91cx42_bridge->parent, "Invalid address space\n"); - return -EINVAL; - break; - } - - /* - * Bound address is a valid address for the window, adjust - * accordingly - */ - vme_bound = vme_base + size; - pci_offset = pci_base - vme_base; - - if ((i == 0) || (i == 4)) - granularity = 0x1000; - else - granularity = 0x10000; - - if (vme_base & (granularity - 1)) { - dev_err(ca91cx42_bridge->parent, "Invalid VME base " - "alignment\n"); - return -EINVAL; - } - if (vme_bound & (granularity - 1)) { - dev_err(ca91cx42_bridge->parent, "Invalid VME bound " - "alignment\n"); - return -EINVAL; - } - if (pci_offset & (granularity - 1)) { - dev_err(ca91cx42_bridge->parent, "Invalid PCI Offset " - "alignment\n"); - return -EINVAL; - } - - /* Disable while we are mucking around */ - temp_ctl = ioread32(bridge->base + CA91CX42_VSI_CTL[i]); - temp_ctl &= ~CA91CX42_VSI_CTL_EN; - iowrite32(temp_ctl, bridge->base + CA91CX42_VSI_CTL[i]); - - /* Setup mapping */ - iowrite32(vme_base, bridge->base + CA91CX42_VSI_BS[i]); - iowrite32(vme_bound, bridge->base + CA91CX42_VSI_BD[i]); - iowrite32(pci_offset, bridge->base + CA91CX42_VSI_TO[i]); - - /* Setup address space */ - temp_ctl &= ~CA91CX42_VSI_CTL_VAS_M; - temp_ctl |= addr; - - /* Setup cycle types */ - temp_ctl &= ~(CA91CX42_VSI_CTL_PGM_M | CA91CX42_VSI_CTL_SUPER_M); - if (cycle & VME_SUPER) - temp_ctl |= CA91CX42_VSI_CTL_SUPER_SUPR; - if (cycle & VME_USER) - temp_ctl |= CA91CX42_VSI_CTL_SUPER_NPRIV; - if (cycle & VME_PROG) - temp_ctl |= CA91CX42_VSI_CTL_PGM_PGM; - if (cycle & VME_DATA) - temp_ctl |= CA91CX42_VSI_CTL_PGM_DATA; - - /* Write ctl reg without enable */ - iowrite32(temp_ctl, bridge->base + CA91CX42_VSI_CTL[i]); - - if (enabled) - temp_ctl |= CA91CX42_VSI_CTL_EN; - - iowrite32(temp_ctl, bridge->base + CA91CX42_VSI_CTL[i]); - - return 0; -} - -int ca91cx42_slave_get(struct vme_slave_resource *image, int *enabled, - unsigned long long *vme_base, unsigned long long *size, - dma_addr_t *pci_base, vme_address_t *aspace, vme_cycle_t *cycle) -{ - unsigned int i, granularity = 0, ctl = 0; - unsigned long long vme_bound, pci_offset; - struct ca91cx42_driver *bridge; - - bridge = image->parent->driver_priv; - - i = image->number; - - if ((i == 0) || (i == 4)) - granularity = 0x1000; - else - granularity = 0x10000; - - /* Read Registers */ - ctl = ioread32(bridge->base + CA91CX42_VSI_CTL[i]); - - *vme_base = ioread32(bridge->base + CA91CX42_VSI_BS[i]); - vme_bound = ioread32(bridge->base + CA91CX42_VSI_BD[i]); - pci_offset = ioread32(bridge->base + CA91CX42_VSI_TO[i]); - - *pci_base = (dma_addr_t)vme_base + pci_offset; - *size = (unsigned long long)((vme_bound - *vme_base) + granularity); - - *enabled = 0; - *aspace = 0; - *cycle = 0; - - if (ctl & CA91CX42_VSI_CTL_EN) - *enabled = 1; - - if ((ctl & CA91CX42_VSI_CTL_VAS_M) == CA91CX42_VSI_CTL_VAS_A16) - *aspace = VME_A16; - if ((ctl & CA91CX42_VSI_CTL_VAS_M) == CA91CX42_VSI_CTL_VAS_A24) - *aspace = VME_A24; - if ((ctl & CA91CX42_VSI_CTL_VAS_M) == CA91CX42_VSI_CTL_VAS_A32) - *aspace = VME_A32; - if ((ctl & CA91CX42_VSI_CTL_VAS_M) == CA91CX42_VSI_CTL_VAS_USER1) - *aspace = VME_USER1; - if ((ctl & CA91CX42_VSI_CTL_VAS_M) == CA91CX42_VSI_CTL_VAS_USER2) - *aspace = VME_USER2; - - if (ctl & CA91CX42_VSI_CTL_SUPER_SUPR) - *cycle |= VME_SUPER; - if (ctl & CA91CX42_VSI_CTL_SUPER_NPRIV) - *cycle |= VME_USER; - if (ctl & CA91CX42_VSI_CTL_PGM_PGM) - *cycle |= VME_PROG; - if (ctl & CA91CX42_VSI_CTL_PGM_DATA) - *cycle |= VME_DATA; - - return 0; -} - -/* - * Allocate and map PCI Resource - */ -static int ca91cx42_alloc_resource(struct vme_master_resource *image, - unsigned long long size) -{ - unsigned long long existing_size; - int retval = 0; - struct pci_dev *pdev; - struct vme_bridge *ca91cx42_bridge; - - ca91cx42_bridge = image->parent; - - /* Find pci_dev container of dev */ - if (ca91cx42_bridge->parent == NULL) { - dev_err(ca91cx42_bridge->parent, "Dev entry NULL\n"); - return -EINVAL; - } - pdev = container_of(ca91cx42_bridge->parent, struct pci_dev, dev); - - existing_size = (unsigned long long)(image->bus_resource.end - - image->bus_resource.start); - - /* If the existing size is OK, return */ - if (existing_size == (size - 1)) - return 0; - - if (existing_size != 0) { - iounmap(image->kern_base); - image->kern_base = NULL; - if (image->bus_resource.name != NULL) - kfree(image->bus_resource.name); - release_resource(&(image->bus_resource)); - memset(&(image->bus_resource), 0, sizeof(struct resource)); - } - - if (image->bus_resource.name == NULL) { - image->bus_resource.name = kmalloc(VMENAMSIZ+3, GFP_ATOMIC); - if (image->bus_resource.name == NULL) { - dev_err(ca91cx42_bridge->parent, "Unable to allocate " - "memory for resource name\n"); - retval = -ENOMEM; - goto err_name; - } - } - - sprintf((char *)image->bus_resource.name, "%s.%d", - ca91cx42_bridge->name, image->number); - - image->bus_resource.start = 0; - image->bus_resource.end = (unsigned long)size; - image->bus_resource.flags = IORESOURCE_MEM; - - retval = pci_bus_alloc_resource(pdev->bus, - &(image->bus_resource), size, size, PCIBIOS_MIN_MEM, - 0, NULL, NULL); - if (retval) { - dev_err(ca91cx42_bridge->parent, "Failed to allocate mem " - "resource for window %d size 0x%lx start 0x%lx\n", - image->number, (unsigned long)size, - (unsigned long)image->bus_resource.start); - goto err_resource; - } - - image->kern_base = ioremap_nocache( - image->bus_resource.start, size); - if (image->kern_base == NULL) { - dev_err(ca91cx42_bridge->parent, "Failed to remap resource\n"); - retval = -ENOMEM; - goto err_remap; - } - - return 0; - - iounmap(image->kern_base); - image->kern_base = NULL; -err_remap: - release_resource(&(image->bus_resource)); -err_resource: - kfree(image->bus_resource.name); - memset(&(image->bus_resource), 0, sizeof(struct resource)); -err_name: - return retval; -} - -/* - * Free and unmap PCI Resource - */ -static void ca91cx42_free_resource(struct vme_master_resource *image) -{ - iounmap(image->kern_base); - image->kern_base = NULL; - release_resource(&(image->bus_resource)); - kfree(image->bus_resource.name); - memset(&(image->bus_resource), 0, sizeof(struct resource)); -} - - -int ca91cx42_master_set(struct vme_master_resource *image, int enabled, - unsigned long long vme_base, unsigned long long size, - vme_address_t aspace, vme_cycle_t cycle, vme_width_t dwidth) -{ - int retval = 0; - unsigned int i, granularity = 0; - unsigned int temp_ctl = 0; - unsigned long long pci_bound, vme_offset, pci_base; - struct vme_bridge *ca91cx42_bridge; - struct ca91cx42_driver *bridge; - - ca91cx42_bridge = image->parent; - - bridge = ca91cx42_bridge->driver_priv; - - i = image->number; - - if ((i == 0) || (i == 4)) - granularity = 0x1000; - else - granularity = 0x10000; - - /* Verify input data */ - if (vme_base & (granularity - 1)) { - dev_err(ca91cx42_bridge->parent, "Invalid VME Window " - "alignment\n"); - retval = -EINVAL; - goto err_window; - } - if (size & (granularity - 1)) { - dev_err(ca91cx42_bridge->parent, "Invalid VME Window " - "alignment\n"); - retval = -EINVAL; - goto err_window; - } - - spin_lock(&(image->lock)); - - /* - * Let's allocate the resource here rather than further up the stack as - * it avoids pushing loads of bus dependant stuff up the stack - */ - retval = ca91cx42_alloc_resource(image, size); - if (retval) { - spin_unlock(&(image->lock)); - dev_err(ca91cx42_bridge->parent, "Unable to allocate memory " - "for resource name\n"); - retval = -ENOMEM; - goto err_res; - } - - pci_base = (unsigned long long)image->bus_resource.start; - - /* - * Bound address is a valid address for the window, adjust - * according to window granularity. - */ - pci_bound = pci_base + size; - vme_offset = vme_base - pci_base; - - /* Disable while we are mucking around */ - temp_ctl = ioread32(bridge->base + CA91CX42_LSI_CTL[i]); - temp_ctl &= ~CA91CX42_LSI_CTL_EN; - iowrite32(temp_ctl, bridge->base + CA91CX42_LSI_CTL[i]); - - /* Setup cycle types */ - temp_ctl &= ~CA91CX42_LSI_CTL_VCT_M; - if (cycle & VME_BLT) - temp_ctl |= CA91CX42_LSI_CTL_VCT_BLT; - if (cycle & VME_MBLT) - temp_ctl |= CA91CX42_LSI_CTL_VCT_MBLT; - - /* Setup data width */ - temp_ctl &= ~CA91CX42_LSI_CTL_VDW_M; - switch (dwidth) { - case VME_D8: - temp_ctl |= CA91CX42_LSI_CTL_VDW_D8; - break; - case VME_D16: - temp_ctl |= CA91CX42_LSI_CTL_VDW_D16; - break; - case VME_D32: - temp_ctl |= CA91CX42_LSI_CTL_VDW_D32; - break; - case VME_D64: - temp_ctl |= CA91CX42_LSI_CTL_VDW_D64; - break; - default: - spin_unlock(&(image->lock)); - dev_err(ca91cx42_bridge->parent, "Invalid data width\n"); - retval = -EINVAL; - goto err_dwidth; - break; - } - - /* Setup address space */ - temp_ctl &= ~CA91CX42_LSI_CTL_VAS_M; - switch (aspace) { - case VME_A16: - temp_ctl |= CA91CX42_LSI_CTL_VAS_A16; - break; - case VME_A24: - temp_ctl |= CA91CX42_LSI_CTL_VAS_A24; - break; - case VME_A32: - temp_ctl |= CA91CX42_LSI_CTL_VAS_A32; - break; - case VME_CRCSR: - temp_ctl |= CA91CX42_LSI_CTL_VAS_CRCSR; - break; - case VME_USER1: - temp_ctl |= CA91CX42_LSI_CTL_VAS_USER1; - break; - case VME_USER2: - temp_ctl |= CA91CX42_LSI_CTL_VAS_USER2; - break; - case VME_A64: - case VME_USER3: - case VME_USER4: - default: - spin_unlock(&(image->lock)); - dev_err(ca91cx42_bridge->parent, "Invalid address space\n"); - retval = -EINVAL; - goto err_aspace; - break; - } - - temp_ctl &= ~(CA91CX42_LSI_CTL_PGM_M | CA91CX42_LSI_CTL_SUPER_M); - if (cycle & VME_SUPER) - temp_ctl |= CA91CX42_LSI_CTL_SUPER_SUPR; - if (cycle & VME_PROG) - temp_ctl |= CA91CX42_LSI_CTL_PGM_PGM; - - /* Setup mapping */ - iowrite32(pci_base, bridge->base + CA91CX42_LSI_BS[i]); - iowrite32(pci_bound, bridge->base + CA91CX42_LSI_BD[i]); - iowrite32(vme_offset, bridge->base + CA91CX42_LSI_TO[i]); - - /* Write ctl reg without enable */ - iowrite32(temp_ctl, bridge->base + CA91CX42_LSI_CTL[i]); - - if (enabled) - temp_ctl |= CA91CX42_LSI_CTL_EN; - - iowrite32(temp_ctl, bridge->base + CA91CX42_LSI_CTL[i]); - - spin_unlock(&(image->lock)); - return 0; - -err_aspace: -err_dwidth: - ca91cx42_free_resource(image); -err_res: -err_window: - return retval; -} - -int __ca91cx42_master_get(struct vme_master_resource *image, int *enabled, - unsigned long long *vme_base, unsigned long long *size, - vme_address_t *aspace, vme_cycle_t *cycle, vme_width_t *dwidth) -{ - unsigned int i, ctl; - unsigned long long pci_base, pci_bound, vme_offset; - struct ca91cx42_driver *bridge; - - bridge = image->parent->driver_priv; - - i = image->number; - - ctl = ioread32(bridge->base + CA91CX42_LSI_CTL[i]); - - pci_base = ioread32(bridge->base + CA91CX42_LSI_BS[i]); - vme_offset = ioread32(bridge->base + CA91CX42_LSI_TO[i]); - pci_bound = ioread32(bridge->base + CA91CX42_LSI_BD[i]); - - *vme_base = pci_base + vme_offset; - *size = (unsigned long long)(pci_bound - pci_base); - - *enabled = 0; - *aspace = 0; - *cycle = 0; - *dwidth = 0; - - if (ctl & CA91CX42_LSI_CTL_EN) - *enabled = 1; - - /* Setup address space */ - switch (ctl & CA91CX42_LSI_CTL_VAS_M) { - case CA91CX42_LSI_CTL_VAS_A16: - *aspace = VME_A16; - break; - case CA91CX42_LSI_CTL_VAS_A24: - *aspace = VME_A24; - break; - case CA91CX42_LSI_CTL_VAS_A32: - *aspace = VME_A32; - break; - case CA91CX42_LSI_CTL_VAS_CRCSR: - *aspace = VME_CRCSR; - break; - case CA91CX42_LSI_CTL_VAS_USER1: - *aspace = VME_USER1; - break; - case CA91CX42_LSI_CTL_VAS_USER2: - *aspace = VME_USER2; - break; - } - - /* XXX Not sure howto check for MBLT */ - /* Setup cycle types */ - if (ctl & CA91CX42_LSI_CTL_VCT_BLT) - *cycle |= VME_BLT; - else - *cycle |= VME_SCT; - - if (ctl & CA91CX42_LSI_CTL_SUPER_SUPR) - *cycle |= VME_SUPER; - else - *cycle |= VME_USER; - - if (ctl & CA91CX42_LSI_CTL_PGM_PGM) - *cycle = VME_PROG; - else - *cycle = VME_DATA; - - /* Setup data width */ - switch (ctl & CA91CX42_LSI_CTL_VDW_M) { - case CA91CX42_LSI_CTL_VDW_D8: - *dwidth = VME_D8; - break; - case CA91CX42_LSI_CTL_VDW_D16: - *dwidth = VME_D16; - break; - case CA91CX42_LSI_CTL_VDW_D32: - *dwidth = VME_D32; - break; - case CA91CX42_LSI_CTL_VDW_D64: - *dwidth = VME_D64; - break; - } - - return 0; -} - -int ca91cx42_master_get(struct vme_master_resource *image, int *enabled, - unsigned long long *vme_base, unsigned long long *size, - vme_address_t *aspace, vme_cycle_t *cycle, vme_width_t *dwidth) -{ - int retval; - - spin_lock(&(image->lock)); - - retval = __ca91cx42_master_get(image, enabled, vme_base, size, aspace, - cycle, dwidth); - - spin_unlock(&(image->lock)); - - return retval; -} - -ssize_t ca91cx42_master_read(struct vme_master_resource *image, void *buf, - size_t count, loff_t offset) -{ - ssize_t retval; - void *addr = image->kern_base + offset; - unsigned int done = 0; - unsigned int count32; - - if (count == 0) - return 0; - - spin_lock(&(image->lock)); - - /* The following code handles VME address alignment problem - * in order to assure the maximal data width cycle. - * We cannot use memcpy_xxx directly here because it - * may cut data transfer in 8-bits cycles, thus making - * D16 cycle impossible. - * From the other hand, the bridge itself assures that - * maximal configured data cycle is used and splits it - * automatically for non-aligned addresses. - */ - if ((int)addr & 0x1) { - *(u8 *)buf = ioread8(addr); - done += 1; - if (done == count) - goto out; - } - if ((int)addr & 0x2) { - if ((count - done) < 2) { - *(u8 *)(buf + done) = ioread8(addr + done); - done += 1; - goto out; - } else { - *(u16 *)(buf + done) = ioread16(addr + done); - done += 2; - } - } - - count32 = (count - done) & ~0x3; - if (count32 > 0) { - memcpy_fromio(buf + done, addr + done, (unsigned int)count); - done += count32; - } - - if ((count - done) & 0x2) { - *(u16 *)(buf + done) = ioread16(addr + done); - done += 2; - } - if ((count - done) & 0x1) { - *(u8 *)(buf + done) = ioread8(addr + done); - done += 1; - } -out: - retval = count; - spin_unlock(&(image->lock)); - - return retval; -} - -ssize_t ca91cx42_master_write(struct vme_master_resource *image, void *buf, - size_t count, loff_t offset) -{ - ssize_t retval; - void *addr = image->kern_base + offset; - unsigned int done = 0; - unsigned int count32; - - if (count == 0) - return 0; - - spin_lock(&(image->lock)); - - /* Here we apply for the same strategy we do in master_read - * function in order to assure D16 cycle when required. - */ - if ((int)addr & 0x1) { - iowrite8(*(u8 *)buf, addr); - done += 1; - if (done == count) - goto out; - } - if ((int)addr & 0x2) { - if ((count - done) < 2) { - iowrite8(*(u8 *)(buf + done), addr + done); - done += 1; - goto out; - } else { - iowrite16(*(u16 *)(buf + done), addr + done); - done += 2; - } - } - - count32 = (count - done) & ~0x3; - if (count32 > 0) { - memcpy_toio(addr + done, buf + done, count32); - done += count32; - } - - if ((count - done) & 0x2) { - iowrite16(*(u16 *)(buf + done), addr + done); - done += 2; - } - if ((count - done) & 0x1) { - iowrite8(*(u8 *)(buf + done), addr + done); - done += 1; - } -out: - retval = count; - - spin_unlock(&(image->lock)); - return retval; -} - -unsigned int ca91cx42_master_rmw(struct vme_master_resource *image, - unsigned int mask, unsigned int compare, unsigned int swap, - loff_t offset) -{ - u32 pci_addr, result; - int i; - struct ca91cx42_driver *bridge; - struct device *dev; - - bridge = image->parent->driver_priv; - dev = image->parent->parent; - - /* Find the PCI address that maps to the desired VME address */ - i = image->number; - - /* Locking as we can only do one of these at a time */ - mutex_lock(&(bridge->vme_rmw)); - - /* Lock image */ - spin_lock(&(image->lock)); - - pci_addr = (u32)image->kern_base + offset; - - /* Address must be 4-byte aligned */ - if (pci_addr & 0x3) { - dev_err(dev, "RMW Address not 4-byte aligned\n"); - result = -EINVAL; - goto out; - } - - /* Ensure RMW Disabled whilst configuring */ - iowrite32(0, bridge->base + SCYC_CTL); - - /* Configure registers */ - iowrite32(mask, bridge->base + SCYC_EN); - iowrite32(compare, bridge->base + SCYC_CMP); - iowrite32(swap, bridge->base + SCYC_SWP); - iowrite32(pci_addr, bridge->base + SCYC_ADDR); - - /* Enable RMW */ - iowrite32(CA91CX42_SCYC_CTL_CYC_RMW, bridge->base + SCYC_CTL); - - /* Kick process off with a read to the required address. */ - result = ioread32(image->kern_base + offset); - - /* Disable RMW */ - iowrite32(0, bridge->base + SCYC_CTL); - -out: - spin_unlock(&(image->lock)); - - mutex_unlock(&(bridge->vme_rmw)); - - return result; -} - -int ca91cx42_dma_list_add(struct vme_dma_list *list, struct vme_dma_attr *src, - struct vme_dma_attr *dest, size_t count) -{ - struct ca91cx42_dma_entry *entry, *prev; - struct vme_dma_pci *pci_attr; - struct vme_dma_vme *vme_attr; - dma_addr_t desc_ptr; - int retval = 0; - struct device *dev; - - dev = list->parent->parent->parent; - - /* XXX descriptor must be aligned on 64-bit boundaries */ - entry = kmalloc(sizeof(struct ca91cx42_dma_entry), GFP_KERNEL); - if (entry == NULL) { - dev_err(dev, "Failed to allocate memory for dma resource " - "structure\n"); - retval = -ENOMEM; - goto err_mem; - } - - /* Test descriptor alignment */ - if ((unsigned long)&(entry->descriptor) & CA91CX42_DCPP_M) { - dev_err(dev, "Descriptor not aligned to 16 byte boundary as " - "required: %p\n", &(entry->descriptor)); - retval = -EINVAL; - goto err_align; - } - - memset(&(entry->descriptor), 0, sizeof(struct ca91cx42_dma_descriptor)); - - if (dest->type == VME_DMA_VME) { - entry->descriptor.dctl |= CA91CX42_DCTL_L2V; - vme_attr = dest->private; - pci_attr = src->private; - } else { - vme_attr = src->private; - pci_attr = dest->private; - } - - /* Check we can do fullfill required attributes */ - if ((vme_attr->aspace & ~(VME_A16 | VME_A24 | VME_A32 | VME_USER1 | - VME_USER2)) != 0) { - - dev_err(dev, "Unsupported cycle type\n"); - retval = -EINVAL; - goto err_aspace; - } - - if ((vme_attr->cycle & ~(VME_SCT | VME_BLT | VME_SUPER | VME_USER | - VME_PROG | VME_DATA)) != 0) { - - dev_err(dev, "Unsupported cycle type\n"); - retval = -EINVAL; - goto err_cycle; - } - - /* Check to see if we can fullfill source and destination */ - if (!(((src->type == VME_DMA_PCI) && (dest->type == VME_DMA_VME)) || - ((src->type == VME_DMA_VME) && (dest->type == VME_DMA_PCI)))) { - - dev_err(dev, "Cannot perform transfer with this " - "source-destination combination\n"); - retval = -EINVAL; - goto err_direct; - } - - /* Setup cycle types */ - if (vme_attr->cycle & VME_BLT) - entry->descriptor.dctl |= CA91CX42_DCTL_VCT_BLT; - - /* Setup data width */ - switch (vme_attr->dwidth) { - case VME_D8: - entry->descriptor.dctl |= CA91CX42_DCTL_VDW_D8; - break; - case VME_D16: - entry->descriptor.dctl |= CA91CX42_DCTL_VDW_D16; - break; - case VME_D32: - entry->descriptor.dctl |= CA91CX42_DCTL_VDW_D32; - break; - case VME_D64: - entry->descriptor.dctl |= CA91CX42_DCTL_VDW_D64; - break; - default: - dev_err(dev, "Invalid data width\n"); - return -EINVAL; - } - - /* Setup address space */ - switch (vme_attr->aspace) { - case VME_A16: - entry->descriptor.dctl |= CA91CX42_DCTL_VAS_A16; - break; - case VME_A24: - entry->descriptor.dctl |= CA91CX42_DCTL_VAS_A24; - break; - case VME_A32: - entry->descriptor.dctl |= CA91CX42_DCTL_VAS_A32; - break; - case VME_USER1: - entry->descriptor.dctl |= CA91CX42_DCTL_VAS_USER1; - break; - case VME_USER2: - entry->descriptor.dctl |= CA91CX42_DCTL_VAS_USER2; - break; - default: - dev_err(dev, "Invalid address space\n"); - return -EINVAL; - break; - } - - if (vme_attr->cycle & VME_SUPER) - entry->descriptor.dctl |= CA91CX42_DCTL_SUPER_SUPR; - if (vme_attr->cycle & VME_PROG) - entry->descriptor.dctl |= CA91CX42_DCTL_PGM_PGM; - - entry->descriptor.dtbc = count; - entry->descriptor.dla = pci_attr->address; - entry->descriptor.dva = vme_attr->address; - entry->descriptor.dcpp = CA91CX42_DCPP_NULL; - - /* Add to list */ - list_add_tail(&(entry->list), &(list->entries)); - - /* Fill out previous descriptors "Next Address" */ - if (entry->list.prev != &(list->entries)) { - prev = list_entry(entry->list.prev, struct ca91cx42_dma_entry, - list); - /* We need the bus address for the pointer */ - desc_ptr = virt_to_bus(&(entry->descriptor)); - prev->descriptor.dcpp = desc_ptr & ~CA91CX42_DCPP_M; - } - - return 0; - -err_cycle: -err_aspace: -err_direct: -err_align: - kfree(entry); -err_mem: - return retval; -} - -static int ca91cx42_dma_busy(struct vme_bridge *ca91cx42_bridge) -{ - u32 tmp; - struct ca91cx42_driver *bridge; - - bridge = ca91cx42_bridge->driver_priv; - - tmp = ioread32(bridge->base + DGCS); - - if (tmp & CA91CX42_DGCS_ACT) - return 0; - else - return 1; -} - -int ca91cx42_dma_list_exec(struct vme_dma_list *list) -{ - struct vme_dma_resource *ctrlr; - struct ca91cx42_dma_entry *entry; - int retval = 0; - dma_addr_t bus_addr; - u32 val; - struct device *dev; - struct ca91cx42_driver *bridge; - - ctrlr = list->parent; - - bridge = ctrlr->parent->driver_priv; - dev = ctrlr->parent->parent; - - mutex_lock(&(ctrlr->mtx)); - - if (!(list_empty(&(ctrlr->running)))) { - /* - * XXX We have an active DMA transfer and currently haven't - * sorted out the mechanism for "pending" DMA transfers. - * Return busy. - */ - /* Need to add to pending here */ - mutex_unlock(&(ctrlr->mtx)); - return -EBUSY; - } else { - list_add(&(list->list), &(ctrlr->running)); - } - - /* Get first bus address and write into registers */ - entry = list_first_entry(&(list->entries), struct ca91cx42_dma_entry, - list); - - bus_addr = virt_to_bus(&(entry->descriptor)); - - mutex_unlock(&(ctrlr->mtx)); - - iowrite32(0, bridge->base + DTBC); - iowrite32(bus_addr & ~CA91CX42_DCPP_M, bridge->base + DCPP); - - /* Start the operation */ - val = ioread32(bridge->base + DGCS); - - /* XXX Could set VMEbus On and Off Counters here */ - val &= (CA91CX42_DGCS_VON_M | CA91CX42_DGCS_VOFF_M); - - val |= (CA91CX42_DGCS_CHAIN | CA91CX42_DGCS_STOP | CA91CX42_DGCS_HALT | - CA91CX42_DGCS_DONE | CA91CX42_DGCS_LERR | CA91CX42_DGCS_VERR | - CA91CX42_DGCS_PERR); - - iowrite32(val, bridge->base + DGCS); - - val |= CA91CX42_DGCS_GO; - - iowrite32(val, bridge->base + DGCS); - - wait_event_interruptible(bridge->dma_queue, - ca91cx42_dma_busy(ctrlr->parent)); - - /* - * Read status register, this register is valid until we kick off a - * new transfer. - */ - val = ioread32(bridge->base + DGCS); - - if (val & (CA91CX42_DGCS_LERR | CA91CX42_DGCS_VERR | - CA91CX42_DGCS_PERR)) { - - dev_err(dev, "ca91c042: DMA Error. DGCS=%08X\n", val); - val = ioread32(bridge->base + DCTL); - } - - /* Remove list from running list */ - mutex_lock(&(ctrlr->mtx)); - list_del(&(list->list)); - mutex_unlock(&(ctrlr->mtx)); - - return retval; - -} - -int ca91cx42_dma_list_empty(struct vme_dma_list *list) -{ - struct list_head *pos, *temp; - struct ca91cx42_dma_entry *entry; - - /* detach and free each entry */ - list_for_each_safe(pos, temp, &(list->entries)) { - list_del(pos); - entry = list_entry(pos, struct ca91cx42_dma_entry, list); - kfree(entry); - } - - return 0; -} - -/* - * All 4 location monitors reside at the same base - this is therefore a - * system wide configuration. - * - * This does not enable the LM monitor - that should be done when the first - * callback is attached and disabled when the last callback is removed. - */ -int ca91cx42_lm_set(struct vme_lm_resource *lm, unsigned long long lm_base, - vme_address_t aspace, vme_cycle_t cycle) -{ - u32 temp_base, lm_ctl = 0; - int i; - struct ca91cx42_driver *bridge; - struct device *dev; - - bridge = lm->parent->driver_priv; - dev = lm->parent->parent; - - /* Check the alignment of the location monitor */ - temp_base = (u32)lm_base; - if (temp_base & 0xffff) { - dev_err(dev, "Location monitor must be aligned to 64KB " - "boundary"); - return -EINVAL; - } - - mutex_lock(&(lm->mtx)); - - /* If we already have a callback attached, we can't move it! */ - for (i = 0; i < lm->monitors; i++) { - if (bridge->lm_callback[i] != NULL) { - mutex_unlock(&(lm->mtx)); - dev_err(dev, "Location monitor callback attached, " - "can't reset\n"); - return -EBUSY; - } - } - - switch (aspace) { - case VME_A16: - lm_ctl |= CA91CX42_LM_CTL_AS_A16; - break; - case VME_A24: - lm_ctl |= CA91CX42_LM_CTL_AS_A24; - break; - case VME_A32: - lm_ctl |= CA91CX42_LM_CTL_AS_A32; - break; - default: - mutex_unlock(&(lm->mtx)); - dev_err(dev, "Invalid address space\n"); - return -EINVAL; - break; - } - - if (cycle & VME_SUPER) - lm_ctl |= CA91CX42_LM_CTL_SUPR; - if (cycle & VME_USER) - lm_ctl |= CA91CX42_LM_CTL_NPRIV; - if (cycle & VME_PROG) - lm_ctl |= CA91CX42_LM_CTL_PGM; - if (cycle & VME_DATA) - lm_ctl |= CA91CX42_LM_CTL_DATA; - - iowrite32(lm_base, bridge->base + LM_BS); - iowrite32(lm_ctl, bridge->base + LM_CTL); - - mutex_unlock(&(lm->mtx)); - - return 0; -} - -/* Get configuration of the callback monitor and return whether it is enabled - * or disabled. - */ -int ca91cx42_lm_get(struct vme_lm_resource *lm, unsigned long long *lm_base, - vme_address_t *aspace, vme_cycle_t *cycle) -{ - u32 lm_ctl, enabled = 0; - struct ca91cx42_driver *bridge; - - bridge = lm->parent->driver_priv; - - mutex_lock(&(lm->mtx)); - - *lm_base = (unsigned long long)ioread32(bridge->base + LM_BS); - lm_ctl = ioread32(bridge->base + LM_CTL); - - if (lm_ctl & CA91CX42_LM_CTL_EN) - enabled = 1; - - if ((lm_ctl & CA91CX42_LM_CTL_AS_M) == CA91CX42_LM_CTL_AS_A16) - *aspace = VME_A16; - if ((lm_ctl & CA91CX42_LM_CTL_AS_M) == CA91CX42_LM_CTL_AS_A24) - *aspace = VME_A24; - if ((lm_ctl & CA91CX42_LM_CTL_AS_M) == CA91CX42_LM_CTL_AS_A32) - *aspace = VME_A32; - - *cycle = 0; - if (lm_ctl & CA91CX42_LM_CTL_SUPR) - *cycle |= VME_SUPER; - if (lm_ctl & CA91CX42_LM_CTL_NPRIV) - *cycle |= VME_USER; - if (lm_ctl & CA91CX42_LM_CTL_PGM) - *cycle |= VME_PROG; - if (lm_ctl & CA91CX42_LM_CTL_DATA) - *cycle |= VME_DATA; - - mutex_unlock(&(lm->mtx)); - - return enabled; -} - -/* - * Attach a callback to a specific location monitor. - * - * Callback will be passed the monitor triggered. - */ -int ca91cx42_lm_attach(struct vme_lm_resource *lm, int monitor, - void (*callback)(int)) -{ - u32 lm_ctl, tmp; - struct ca91cx42_driver *bridge; - struct device *dev; - - bridge = lm->parent->driver_priv; - dev = lm->parent->parent; - - mutex_lock(&(lm->mtx)); - - /* Ensure that the location monitor is configured - need PGM or DATA */ - lm_ctl = ioread32(bridge->base + LM_CTL); - if ((lm_ctl & (CA91CX42_LM_CTL_PGM | CA91CX42_LM_CTL_DATA)) == 0) { - mutex_unlock(&(lm->mtx)); - dev_err(dev, "Location monitor not properly configured\n"); - return -EINVAL; - } - - /* Check that a callback isn't already attached */ - if (bridge->lm_callback[monitor] != NULL) { - mutex_unlock(&(lm->mtx)); - dev_err(dev, "Existing callback attached\n"); - return -EBUSY; - } - - /* Attach callback */ - bridge->lm_callback[monitor] = callback; - - /* Enable Location Monitor interrupt */ - tmp = ioread32(bridge->base + LINT_EN); - tmp |= CA91CX42_LINT_LM[monitor]; - iowrite32(tmp, bridge->base + LINT_EN); - - /* Ensure that global Location Monitor Enable set */ - if ((lm_ctl & CA91CX42_LM_CTL_EN) == 0) { - lm_ctl |= CA91CX42_LM_CTL_EN; - iowrite32(lm_ctl, bridge->base + LM_CTL); - } - - mutex_unlock(&(lm->mtx)); - - return 0; -} - -/* - * Detach a callback function forn a specific location monitor. - */ -int ca91cx42_lm_detach(struct vme_lm_resource *lm, int monitor) -{ - u32 tmp; - struct ca91cx42_driver *bridge; - - bridge = lm->parent->driver_priv; - - mutex_lock(&(lm->mtx)); - - /* Disable Location Monitor and ensure previous interrupts are clear */ - tmp = ioread32(bridge->base + LINT_EN); - tmp &= ~CA91CX42_LINT_LM[monitor]; - iowrite32(tmp, bridge->base + LINT_EN); - - iowrite32(CA91CX42_LINT_LM[monitor], - bridge->base + LINT_STAT); - - /* Detach callback */ - bridge->lm_callback[monitor] = NULL; - - /* If all location monitors disabled, disable global Location Monitor */ - if ((tmp & (CA91CX42_LINT_LM0 | CA91CX42_LINT_LM1 | CA91CX42_LINT_LM2 | - CA91CX42_LINT_LM3)) == 0) { - tmp = ioread32(bridge->base + LM_CTL); - tmp &= ~CA91CX42_LM_CTL_EN; - iowrite32(tmp, bridge->base + LM_CTL); - } - - mutex_unlock(&(lm->mtx)); - - return 0; -} - -int ca91cx42_slot_get(struct vme_bridge *ca91cx42_bridge) -{ - u32 slot = 0; - struct ca91cx42_driver *bridge; - - bridge = ca91cx42_bridge->driver_priv; - - if (!geoid) { - slot = ioread32(bridge->base + VCSR_BS); - slot = ((slot & CA91CX42_VCSR_BS_SLOT_M) >> 27); - } else - slot = geoid; - - return (int)slot; - -} - -static int __init ca91cx42_init(void) -{ - return pci_register_driver(&ca91cx42_driver); -} - -/* - * Configure CR/CSR space - * - * Access to the CR/CSR can be configured at power-up. The location of the - * CR/CSR registers in the CR/CSR address space is determined by the boards - * Auto-ID or Geographic address. This function ensures that the window is - * enabled at an offset consistent with the boards geopgraphic address. - */ -static int ca91cx42_crcsr_init(struct vme_bridge *ca91cx42_bridge, - struct pci_dev *pdev) -{ - unsigned int crcsr_addr; - int tmp, slot; - struct ca91cx42_driver *bridge; - - bridge = ca91cx42_bridge->driver_priv; - - slot = ca91cx42_slot_get(ca91cx42_bridge); - - /* Write CSR Base Address if slot ID is supplied as a module param */ - if (geoid) - iowrite32(geoid << 27, bridge->base + VCSR_BS); - - dev_info(&pdev->dev, "CR/CSR Offset: %d\n", slot); - if (slot == 0) { - dev_err(&pdev->dev, "Slot number is unset, not configuring " - "CR/CSR space\n"); - return -EINVAL; - } - - /* Allocate mem for CR/CSR image */ - bridge->crcsr_kernel = pci_alloc_consistent(pdev, VME_CRCSR_BUF_SIZE, - &(bridge->crcsr_bus)); - if (bridge->crcsr_kernel == NULL) { - dev_err(&pdev->dev, "Failed to allocate memory for CR/CSR " - "image\n"); - return -ENOMEM; - } - - memset(bridge->crcsr_kernel, 0, VME_CRCSR_BUF_SIZE); - - crcsr_addr = slot * (512 * 1024); - iowrite32(bridge->crcsr_bus - crcsr_addr, bridge->base + VCSR_TO); - - tmp = ioread32(bridge->base + VCSR_CTL); - tmp |= CA91CX42_VCSR_CTL_EN; - iowrite32(tmp, bridge->base + VCSR_CTL); - - return 0; -} - -static void ca91cx42_crcsr_exit(struct vme_bridge *ca91cx42_bridge, - struct pci_dev *pdev) -{ - u32 tmp; - struct ca91cx42_driver *bridge; - - bridge = ca91cx42_bridge->driver_priv; - - /* Turn off CR/CSR space */ - tmp = ioread32(bridge->base + VCSR_CTL); - tmp &= ~CA91CX42_VCSR_CTL_EN; - iowrite32(tmp, bridge->base + VCSR_CTL); - - /* Free image */ - iowrite32(0, bridge->base + VCSR_TO); - - pci_free_consistent(pdev, VME_CRCSR_BUF_SIZE, bridge->crcsr_kernel, - bridge->crcsr_bus); -} - -static int ca91cx42_probe(struct pci_dev *pdev, const struct pci_device_id *id) -{ - int retval, i; - u32 data; - struct list_head *pos = NULL; - struct vme_bridge *ca91cx42_bridge; - struct ca91cx42_driver *ca91cx42_device; - struct vme_master_resource *master_image; - struct vme_slave_resource *slave_image; - struct vme_dma_resource *dma_ctrlr; - struct vme_lm_resource *lm; - - /* We want to support more than one of each bridge so we need to - * dynamically allocate the bridge structure - */ - ca91cx42_bridge = kzalloc(sizeof(struct vme_bridge), GFP_KERNEL); - - if (ca91cx42_bridge == NULL) { - dev_err(&pdev->dev, "Failed to allocate memory for device " - "structure\n"); - retval = -ENOMEM; - goto err_struct; - } - - ca91cx42_device = kzalloc(sizeof(struct ca91cx42_driver), GFP_KERNEL); - - if (ca91cx42_device == NULL) { - dev_err(&pdev->dev, "Failed to allocate memory for device " - "structure\n"); - retval = -ENOMEM; - goto err_driver; - } - - ca91cx42_bridge->driver_priv = ca91cx42_device; - - /* Enable the device */ - retval = pci_enable_device(pdev); - if (retval) { - dev_err(&pdev->dev, "Unable to enable device\n"); - goto err_enable; - } - - /* Map Registers */ - retval = pci_request_regions(pdev, driver_name); - if (retval) { - dev_err(&pdev->dev, "Unable to reserve resources\n"); - goto err_resource; - } - - /* map registers in BAR 0 */ - ca91cx42_device->base = ioremap_nocache(pci_resource_start(pdev, 0), - 4096); - if (!ca91cx42_device->base) { - dev_err(&pdev->dev, "Unable to remap CRG region\n"); - retval = -EIO; - goto err_remap; - } - - /* Check to see if the mapping worked out */ - data = ioread32(ca91cx42_device->base + CA91CX42_PCI_ID) & 0x0000FFFF; - if (data != PCI_VENDOR_ID_TUNDRA) { - dev_err(&pdev->dev, "PCI_ID check failed\n"); - retval = -EIO; - goto err_test; - } - - /* Initialize wait queues & mutual exclusion flags */ - init_waitqueue_head(&(ca91cx42_device->dma_queue)); - init_waitqueue_head(&(ca91cx42_device->iack_queue)); - mutex_init(&(ca91cx42_device->vme_int)); - mutex_init(&(ca91cx42_device->vme_rmw)); - - ca91cx42_bridge->parent = &(pdev->dev); - strcpy(ca91cx42_bridge->name, driver_name); - - /* Setup IRQ */ - retval = ca91cx42_irq_init(ca91cx42_bridge); - if (retval != 0) { - dev_err(&pdev->dev, "Chip Initialization failed.\n"); - goto err_irq; - } - - /* Add master windows to list */ - INIT_LIST_HEAD(&(ca91cx42_bridge->master_resources)); - for (i = 0; i < CA91C142_MAX_MASTER; i++) { - master_image = kmalloc(sizeof(struct vme_master_resource), - GFP_KERNEL); - if (master_image == NULL) { - dev_err(&pdev->dev, "Failed to allocate memory for " - "master resource structure\n"); - retval = -ENOMEM; - goto err_master; - } - master_image->parent = ca91cx42_bridge; - spin_lock_init(&(master_image->lock)); - master_image->locked = 0; - master_image->number = i; - master_image->address_attr = VME_A16 | VME_A24 | VME_A32 | - VME_CRCSR | VME_USER1 | VME_USER2; - master_image->cycle_attr = VME_SCT | VME_BLT | VME_MBLT | - VME_SUPER | VME_USER | VME_PROG | VME_DATA; - master_image->width_attr = VME_D8 | VME_D16 | VME_D32 | VME_D64; - memset(&(master_image->bus_resource), 0, - sizeof(struct resource)); - master_image->kern_base = NULL; - list_add_tail(&(master_image->list), - &(ca91cx42_bridge->master_resources)); - } - - /* Add slave windows to list */ - INIT_LIST_HEAD(&(ca91cx42_bridge->slave_resources)); - for (i = 0; i < CA91C142_MAX_SLAVE; i++) { - slave_image = kmalloc(sizeof(struct vme_slave_resource), - GFP_KERNEL); - if (slave_image == NULL) { - dev_err(&pdev->dev, "Failed to allocate memory for " - "slave resource structure\n"); - retval = -ENOMEM; - goto err_slave; - } - slave_image->parent = ca91cx42_bridge; - mutex_init(&(slave_image->mtx)); - slave_image->locked = 0; - slave_image->number = i; - slave_image->address_attr = VME_A24 | VME_A32 | VME_USER1 | - VME_USER2; - - /* Only windows 0 and 4 support A16 */ - if (i == 0 || i == 4) - slave_image->address_attr |= VME_A16; - - slave_image->cycle_attr = VME_SCT | VME_BLT | VME_MBLT | - VME_SUPER | VME_USER | VME_PROG | VME_DATA; - list_add_tail(&(slave_image->list), - &(ca91cx42_bridge->slave_resources)); - } - - /* Add dma engines to list */ - INIT_LIST_HEAD(&(ca91cx42_bridge->dma_resources)); - for (i = 0; i < CA91C142_MAX_DMA; i++) { - dma_ctrlr = kmalloc(sizeof(struct vme_dma_resource), - GFP_KERNEL); - if (dma_ctrlr == NULL) { - dev_err(&pdev->dev, "Failed to allocate memory for " - "dma resource structure\n"); - retval = -ENOMEM; - goto err_dma; - } - dma_ctrlr->parent = ca91cx42_bridge; - mutex_init(&(dma_ctrlr->mtx)); - dma_ctrlr->locked = 0; - dma_ctrlr->number = i; - dma_ctrlr->route_attr = VME_DMA_VME_TO_MEM | - VME_DMA_MEM_TO_VME; - INIT_LIST_HEAD(&(dma_ctrlr->pending)); - INIT_LIST_HEAD(&(dma_ctrlr->running)); - list_add_tail(&(dma_ctrlr->list), - &(ca91cx42_bridge->dma_resources)); - } - - /* Add location monitor to list */ - INIT_LIST_HEAD(&(ca91cx42_bridge->lm_resources)); - lm = kmalloc(sizeof(struct vme_lm_resource), GFP_KERNEL); - if (lm == NULL) { - dev_err(&pdev->dev, "Failed to allocate memory for " - "location monitor resource structure\n"); - retval = -ENOMEM; - goto err_lm; - } - lm->parent = ca91cx42_bridge; - mutex_init(&(lm->mtx)); - lm->locked = 0; - lm->number = 1; - lm->monitors = 4; - list_add_tail(&(lm->list), &(ca91cx42_bridge->lm_resources)); - - ca91cx42_bridge->slave_get = ca91cx42_slave_get; - ca91cx42_bridge->slave_set = ca91cx42_slave_set; - ca91cx42_bridge->master_get = ca91cx42_master_get; - ca91cx42_bridge->master_set = ca91cx42_master_set; - ca91cx42_bridge->master_read = ca91cx42_master_read; - ca91cx42_bridge->master_write = ca91cx42_master_write; - ca91cx42_bridge->master_rmw = ca91cx42_master_rmw; - ca91cx42_bridge->dma_list_add = ca91cx42_dma_list_add; - ca91cx42_bridge->dma_list_exec = ca91cx42_dma_list_exec; - ca91cx42_bridge->dma_list_empty = ca91cx42_dma_list_empty; - ca91cx42_bridge->irq_set = ca91cx42_irq_set; - ca91cx42_bridge->irq_generate = ca91cx42_irq_generate; - ca91cx42_bridge->lm_set = ca91cx42_lm_set; - ca91cx42_bridge->lm_get = ca91cx42_lm_get; - ca91cx42_bridge->lm_attach = ca91cx42_lm_attach; - ca91cx42_bridge->lm_detach = ca91cx42_lm_detach; - ca91cx42_bridge->slot_get = ca91cx42_slot_get; - - data = ioread32(ca91cx42_device->base + MISC_CTL); - dev_info(&pdev->dev, "Board is%s the VME system controller\n", - (data & CA91CX42_MISC_CTL_SYSCON) ? "" : " not"); - dev_info(&pdev->dev, "Slot ID is %d\n", - ca91cx42_slot_get(ca91cx42_bridge)); - - if (ca91cx42_crcsr_init(ca91cx42_bridge, pdev)) - dev_err(&pdev->dev, "CR/CSR configuration failed.\n"); - - /* Need to save ca91cx42_bridge pointer locally in link list for use in - * ca91cx42_remove() - */ - retval = vme_register_bridge(ca91cx42_bridge); - if (retval != 0) { - dev_err(&pdev->dev, "Chip Registration failed.\n"); - goto err_reg; - } - - pci_set_drvdata(pdev, ca91cx42_bridge); - - return 0; - - vme_unregister_bridge(ca91cx42_bridge); -err_reg: - ca91cx42_crcsr_exit(ca91cx42_bridge, pdev); -err_lm: - /* resources are stored in link list */ - list_for_each(pos, &(ca91cx42_bridge->lm_resources)) { - lm = list_entry(pos, struct vme_lm_resource, list); - list_del(pos); - kfree(lm); - } -err_dma: - /* resources are stored in link list */ - list_for_each(pos, &(ca91cx42_bridge->dma_resources)) { - dma_ctrlr = list_entry(pos, struct vme_dma_resource, list); - list_del(pos); - kfree(dma_ctrlr); - } -err_slave: - /* resources are stored in link list */ - list_for_each(pos, &(ca91cx42_bridge->slave_resources)) { - slave_image = list_entry(pos, struct vme_slave_resource, list); - list_del(pos); - kfree(slave_image); - } -err_master: - /* resources are stored in link list */ - list_for_each(pos, &(ca91cx42_bridge->master_resources)) { - master_image = list_entry(pos, struct vme_master_resource, - list); - list_del(pos); - kfree(master_image); - } - - ca91cx42_irq_exit(ca91cx42_device, pdev); -err_irq: -err_test: - iounmap(ca91cx42_device->base); -err_remap: - pci_release_regions(pdev); -err_resource: - pci_disable_device(pdev); -err_enable: - kfree(ca91cx42_device); -err_driver: - kfree(ca91cx42_bridge); -err_struct: - return retval; - -} - -void ca91cx42_remove(struct pci_dev *pdev) -{ - struct list_head *pos = NULL; - struct vme_master_resource *master_image; - struct vme_slave_resource *slave_image; - struct vme_dma_resource *dma_ctrlr; - struct vme_lm_resource *lm; - struct ca91cx42_driver *bridge; - struct vme_bridge *ca91cx42_bridge = pci_get_drvdata(pdev); - - bridge = ca91cx42_bridge->driver_priv; - - - /* Turn off Ints */ - iowrite32(0, bridge->base + LINT_EN); - - /* Turn off the windows */ - iowrite32(0x00800000, bridge->base + LSI0_CTL); - iowrite32(0x00800000, bridge->base + LSI1_CTL); - iowrite32(0x00800000, bridge->base + LSI2_CTL); - iowrite32(0x00800000, bridge->base + LSI3_CTL); - iowrite32(0x00800000, bridge->base + LSI4_CTL); - iowrite32(0x00800000, bridge->base + LSI5_CTL); - iowrite32(0x00800000, bridge->base + LSI6_CTL); - iowrite32(0x00800000, bridge->base + LSI7_CTL); - iowrite32(0x00F00000, bridge->base + VSI0_CTL); - iowrite32(0x00F00000, bridge->base + VSI1_CTL); - iowrite32(0x00F00000, bridge->base + VSI2_CTL); - iowrite32(0x00F00000, bridge->base + VSI3_CTL); - iowrite32(0x00F00000, bridge->base + VSI4_CTL); - iowrite32(0x00F00000, bridge->base + VSI5_CTL); - iowrite32(0x00F00000, bridge->base + VSI6_CTL); - iowrite32(0x00F00000, bridge->base + VSI7_CTL); - - vme_unregister_bridge(ca91cx42_bridge); - - ca91cx42_crcsr_exit(ca91cx42_bridge, pdev); - - /* resources are stored in link list */ - list_for_each(pos, &(ca91cx42_bridge->lm_resources)) { - lm = list_entry(pos, struct vme_lm_resource, list); - list_del(pos); - kfree(lm); - } - - /* resources are stored in link list */ - list_for_each(pos, &(ca91cx42_bridge->dma_resources)) { - dma_ctrlr = list_entry(pos, struct vme_dma_resource, list); - list_del(pos); - kfree(dma_ctrlr); - } - - /* resources are stored in link list */ - list_for_each(pos, &(ca91cx42_bridge->slave_resources)) { - slave_image = list_entry(pos, struct vme_slave_resource, list); - list_del(pos); - kfree(slave_image); - } - - /* resources are stored in link list */ - list_for_each(pos, &(ca91cx42_bridge->master_resources)) { - master_image = list_entry(pos, struct vme_master_resource, - list); - list_del(pos); - kfree(master_image); - } - - ca91cx42_irq_exit(bridge, pdev); - - iounmap(bridge->base); - - pci_release_regions(pdev); - - pci_disable_device(pdev); - - kfree(ca91cx42_bridge); -} - -static void __exit ca91cx42_exit(void) -{ - pci_unregister_driver(&ca91cx42_driver); -} - -MODULE_PARM_DESC(geoid, "Override geographical addressing"); -module_param(geoid, int, 0); - -MODULE_DESCRIPTION("VME driver for the Tundra Universe II VME bridge"); -MODULE_LICENSE("GPL"); - -module_init(ca91cx42_init); -module_exit(ca91cx42_exit); diff --git a/drivers/staging/vme/bridges/vme_ca91cx42.h b/drivers/staging/vme/bridges/vme_ca91cx42.h deleted file mode 100644 index e72c65b193e..00000000000 --- a/drivers/staging/vme/bridges/vme_ca91cx42.h +++ /dev/null @@ -1,583 +0,0 @@ -/* - * ca91c042.h - * - * Support for the Tundra Universe 1 and Universe II VME bridge chips - * - * Author: Tom Armistead - * Updated by Ajit Prem - * Copyright 2004 Motorola Inc. - * - * Further updated by Martyn Welch <martyn.welch@ge.com> - * Copyright 2009 GE Intelligent Platforms Embedded Systems, Inc. - * - * Derived from ca91c042.h by Michael Wyrick - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ - -#ifndef _CA91CX42_H -#define _CA91CX42_H - -#ifndef PCI_VENDOR_ID_TUNDRA -#define PCI_VENDOR_ID_TUNDRA 0x10e3 -#endif - -#ifndef PCI_DEVICE_ID_TUNDRA_CA91C142 -#define PCI_DEVICE_ID_TUNDRA_CA91C142 0x0000 -#endif - -/* - * Define the number of each that the CA91C142 supports. - */ -#define CA91C142_MAX_MASTER 8 /* Max Master Windows */ -#define CA91C142_MAX_SLAVE 8 /* Max Slave Windows */ -#define CA91C142_MAX_DMA 1 /* Max DMA Controllers */ -#define CA91C142_MAX_MAILBOX 4 /* Max Mail Box registers */ - -/* Structure used to hold driver specific information */ -struct ca91cx42_driver { - void *base; /* Base Address of device registers */ - wait_queue_head_t dma_queue; - wait_queue_head_t iack_queue; - wait_queue_head_t mbox_queue; - void (*lm_callback[4])(int); /* Called in interrupt handler */ - void *crcsr_kernel; - dma_addr_t crcsr_bus; - struct mutex vme_rmw; /* Only one RMW cycle at a time */ - struct mutex vme_int; /* - * Only one VME interrupt can be - * generated at a time, provide locking - */ -}; - -/* See Page 2-77 in the Universe User Manual */ -struct ca91cx42_dma_descriptor { - unsigned int dctl; /* DMA Control */ - unsigned int dtbc; /* Transfer Byte Count */ - unsigned int dla; /* PCI Address */ - unsigned int res1; /* Reserved */ - unsigned int dva; /* Vme Address */ - unsigned int res2; /* Reserved */ - unsigned int dcpp; /* Pointer to Numed Cmd Packet with rPN */ - unsigned int res3; /* Reserved */ -}; - -struct ca91cx42_dma_entry { - struct ca91cx42_dma_descriptor descriptor; - struct list_head list; -}; - -/* Universe Register Offsets */ -/* general PCI configuration registers */ -#define CA91CX42_PCI_ID 0x000 -#define CA91CX42_PCI_CSR 0x004 -#define CA91CX42_PCI_CLASS 0x008 -#define CA91CX42_PCI_MISC0 0x00C -#define CA91CX42_PCI_BS 0x010 -#define CA91CX42_PCI_MISC1 0x03C - -#define LSI0_CTL 0x0100 -#define LSI0_BS 0x0104 -#define LSI0_BD 0x0108 -#define LSI0_TO 0x010C - -#define LSI1_CTL 0x0114 -#define LSI1_BS 0x0118 -#define LSI1_BD 0x011C -#define LSI1_TO 0x0120 - -#define LSI2_CTL 0x0128 -#define LSI2_BS 0x012C -#define LSI2_BD 0x0130 -#define LSI2_TO 0x0134 - -#define LSI3_CTL 0x013C -#define LSI3_BS 0x0140 -#define LSI3_BD 0x0144 -#define LSI3_TO 0x0148 - -#define LSI4_CTL 0x01A0 -#define LSI4_BS 0x01A4 -#define LSI4_BD 0x01A8 -#define LSI4_TO 0x01AC - -#define LSI5_CTL 0x01B4 -#define LSI5_BS 0x01B8 -#define LSI5_BD 0x01BC -#define LSI5_TO 0x01C0 - -#define LSI6_CTL 0x01C8 -#define LSI6_BS 0x01CC -#define LSI6_BD 0x01D0 -#define LSI6_TO 0x01D4 - -#define LSI7_CTL 0x01DC -#define LSI7_BS 0x01E0 -#define LSI7_BD 0x01E4 -#define LSI7_TO 0x01E8 - -static const int CA91CX42_LSI_CTL[] = { LSI0_CTL, LSI1_CTL, LSI2_CTL, LSI3_CTL, - LSI4_CTL, LSI5_CTL, LSI6_CTL, LSI7_CTL }; - -static const int CA91CX42_LSI_BS[] = { LSI0_BS, LSI1_BS, LSI2_BS, LSI3_BS, - LSI4_BS, LSI5_BS, LSI6_BS, LSI7_BS }; - -static const int CA91CX42_LSI_BD[] = { LSI0_BD, LSI1_BD, LSI2_BD, LSI3_BD, - LSI4_BD, LSI5_BD, LSI6_BD, LSI7_BD }; - -static const int CA91CX42_LSI_TO[] = { LSI0_TO, LSI1_TO, LSI2_TO, LSI3_TO, - LSI4_TO, LSI5_TO, LSI6_TO, LSI7_TO }; - -#define SCYC_CTL 0x0170 -#define SCYC_ADDR 0x0174 -#define SCYC_EN 0x0178 -#define SCYC_CMP 0x017C -#define SCYC_SWP 0x0180 -#define LMISC 0x0184 -#define SLSI 0x0188 -#define L_CMDERR 0x018C -#define LAERR 0x0190 - -#define DCTL 0x0200 -#define DTBC 0x0204 -#define DLA 0x0208 -#define DVA 0x0210 -#define DCPP 0x0218 -#define DGCS 0x0220 -#define D_LLUE 0x0224 - -#define LINT_EN 0x0300 -#define LINT_STAT 0x0304 -#define LINT_MAP0 0x0308 -#define LINT_MAP1 0x030C -#define VINT_EN 0x0310 -#define VINT_STAT 0x0314 -#define VINT_MAP0 0x0318 -#define VINT_MAP1 0x031C -#define STATID 0x0320 - -#define V1_STATID 0x0324 -#define V2_STATID 0x0328 -#define V3_STATID 0x032C -#define V4_STATID 0x0330 -#define V5_STATID 0x0334 -#define V6_STATID 0x0338 -#define V7_STATID 0x033C - -static const int CA91CX42_V_STATID[8] = { 0, V1_STATID, V2_STATID, V3_STATID, - V4_STATID, V5_STATID, V6_STATID, - V7_STATID }; - -#define LINT_MAP2 0x0340 -#define VINT_MAP2 0x0344 - -#define MBOX0 0x0348 -#define MBOX1 0x034C -#define MBOX2 0x0350 -#define MBOX3 0x0354 -#define SEMA0 0x0358 -#define SEMA1 0x035C - -#define MAST_CTL 0x0400 -#define MISC_CTL 0x0404 -#define MISC_STAT 0x0408 -#define USER_AM 0x040C - -#define VSI0_CTL 0x0F00 -#define VSI0_BS 0x0F04 -#define VSI0_BD 0x0F08 -#define VSI0_TO 0x0F0C - -#define VSI1_CTL 0x0F14 -#define VSI1_BS 0x0F18 -#define VSI1_BD 0x0F1C -#define VSI1_TO 0x0F20 - -#define VSI2_CTL 0x0F28 -#define VSI2_BS 0x0F2C -#define VSI2_BD 0x0F30 -#define VSI2_TO 0x0F34 - -#define VSI3_CTL 0x0F3C -#define VSI3_BS 0x0F40 -#define VSI3_BD 0x0F44 -#define VSI3_TO 0x0F48 - -#define LM_CTL 0x0F64 -#define LM_BS 0x0F68 - -#define VRAI_CTL 0x0F70 - -#define VRAI_BS 0x0F74 -#define VCSR_CTL 0x0F80 -#define VCSR_TO 0x0F84 -#define V_AMERR 0x0F88 -#define VAERR 0x0F8C - -#define VSI4_CTL 0x0F90 -#define VSI4_BS 0x0F94 -#define VSI4_BD 0x0F98 -#define VSI4_TO 0x0F9C - -#define VSI5_CTL 0x0FA4 -#define VSI5_BS 0x0FA8 -#define VSI5_BD 0x0FAC -#define VSI5_TO 0x0FB0 - -#define VSI6_CTL 0x0FB8 -#define VSI6_BS 0x0FBC -#define VSI6_BD 0x0FC0 -#define VSI6_TO 0x0FC4 - -#define VSI7_CTL 0x0FCC -#define VSI7_BS 0x0FD0 -#define VSI7_BD 0x0FD4 -#define VSI7_TO 0x0FD8 - -static const int CA91CX42_VSI_CTL[] = { VSI0_CTL, VSI1_CTL, VSI2_CTL, VSI3_CTL, - VSI4_CTL, VSI5_CTL, VSI6_CTL, VSI7_CTL }; - -static const int CA91CX42_VSI_BS[] = { VSI0_BS, VSI1_BS, VSI2_BS, VSI3_BS, - VSI4_BS, VSI5_BS, VSI6_BS, VSI7_BS }; - -static const int CA91CX42_VSI_BD[] = { VSI0_BD, VSI1_BD, VSI2_BD, VSI3_BD, - VSI4_BD, VSI5_BD, VSI6_BD, VSI7_BD }; - -static const int CA91CX42_VSI_TO[] = { VSI0_TO, VSI1_TO, VSI2_TO, VSI3_TO, - VSI4_TO, VSI5_TO, VSI6_TO, VSI7_TO }; - -#define VCSR_CLR 0x0FF4 -#define VCSR_SET 0x0FF8 -#define VCSR_BS 0x0FFC - -/* - * PCI Class Register - * offset 008 - */ -#define CA91CX42_BM_PCI_CLASS_BASE 0xFF000000 -#define CA91CX42_OF_PCI_CLASS_BASE 24 -#define CA91CX42_BM_PCI_CLASS_SUB 0x00FF0000 -#define CA91CX42_OF_PCI_CLASS_SUB 16 -#define CA91CX42_BM_PCI_CLASS_PROG 0x0000FF00 -#define CA91CX42_OF_PCI_CLASS_PROG 8 -#define CA91CX42_BM_PCI_CLASS_RID 0x000000FF -#define CA91CX42_OF_PCI_CLASS_RID 0 - -#define CA91CX42_OF_PCI_CLASS_RID_UNIVERSE_I 0 -#define CA91CX42_OF_PCI_CLASS_RID_UNIVERSE_II 1 - -/* - * PCI Misc Register - * offset 00C - */ -#define CA91CX42_BM_PCI_MISC0_BISTC 0x80000000 -#define CA91CX42_BM_PCI_MISC0_SBIST 0x60000000 -#define CA91CX42_BM_PCI_MISC0_CCODE 0x0F000000 -#define CA91CX42_BM_PCI_MISC0_MFUNCT 0x00800000 -#define CA91CX42_BM_PCI_MISC0_LAYOUT 0x007F0000 -#define CA91CX42_BM_PCI_MISC0_LTIMER 0x0000FF00 -#define CA91CX42_OF_PCI_MISC0_LTIMER 8 - - -/* - * LSI Control Register - * offset 100 - */ -#define CA91CX42_LSI_CTL_EN (1<<31) -#define CA91CX42_LSI_CTL_PWEN (1<<30) - -#define CA91CX42_LSI_CTL_VDW_M (3<<22) -#define CA91CX42_LSI_CTL_VDW_D8 0 -#define CA91CX42_LSI_CTL_VDW_D16 (1<<22) -#define CA91CX42_LSI_CTL_VDW_D32 (1<<23) -#define CA91CX42_LSI_CTL_VDW_D64 (3<<22) - -#define CA91CX42_LSI_CTL_VAS_M (7<<16) -#define CA91CX42_LSI_CTL_VAS_A16 0 -#define CA91CX42_LSI_CTL_VAS_A24 (1<<16) -#define CA91CX42_LSI_CTL_VAS_A32 (1<<17) -#define CA91CX42_LSI_CTL_VAS_CRCSR (5<<16) -#define CA91CX42_LSI_CTL_VAS_USER1 (3<<17) -#define CA91CX42_LSI_CTL_VAS_USER2 (7<<16) - -#define CA91CX42_LSI_CTL_PGM_M (1<<14) -#define CA91CX42_LSI_CTL_PGM_DATA 0 -#define CA91CX42_LSI_CTL_PGM_PGM (1<<14) - -#define CA91CX42_LSI_CTL_SUPER_M (1<<12) -#define CA91CX42_LSI_CTL_SUPER_NPRIV 0 -#define CA91CX42_LSI_CTL_SUPER_SUPR (1<<12) - -#define CA91CX42_LSI_CTL_VCT_M (1<<8) -#define CA91CX42_LSI_CTL_VCT_BLT (1<<8) -#define CA91CX42_LSI_CTL_VCT_MBLT (1<<8) -#define CA91CX42_LSI_CTL_LAS (1<<0) - -/* - * SCYC_CTL Register - * offset 178 - */ -#define CA91CX42_SCYC_CTL_LAS_PCIMEM 0 -#define CA91CX42_SCYC_CTL_LAS_PCIIO (1<<2) - -#define CA91CX42_SCYC_CTL_CYC_M (3<<0) -#define CA91CX42_SCYC_CTL_CYC_RMW (1<<0) -#define CA91CX42_SCYC_CTL_CYC_ADOH (1<<1) - -/* - * LMISC Register - * offset 184 - */ -#define CA91CX42_BM_LMISC_CRT 0xF0000000 -#define CA91CX42_OF_LMISC_CRT 28 -#define CA91CX42_BM_LMISC_CWT 0x0F000000 -#define CA91CX42_OF_LMISC_CWT 24 - -/* - * SLSI Register - * offset 188 - */ -#define CA91CX42_BM_SLSI_EN 0x80000000 -#define CA91CX42_BM_SLSI_PWEN 0x40000000 -#define CA91CX42_BM_SLSI_VDW 0x00F00000 -#define CA91CX42_OF_SLSI_VDW 20 -#define CA91CX42_BM_SLSI_PGM 0x0000F000 -#define CA91CX42_OF_SLSI_PGM 12 -#define CA91CX42_BM_SLSI_SUPER 0x00000F00 -#define CA91CX42_OF_SLSI_SUPER 8 -#define CA91CX42_BM_SLSI_BS 0x000000F6 -#define CA91CX42_OF_SLSI_BS 2 -#define CA91CX42_BM_SLSI_LAS 0x00000003 -#define CA91CX42_OF_SLSI_LAS 0 -#define CA91CX42_BM_SLSI_RESERVED 0x3F0F0000 - -/* - * DCTL Register - * offset 200 - */ -#define CA91CX42_DCTL_L2V (1<<31) -#define CA91CX42_DCTL_VDW_M (3<<22) -#define CA91CX42_DCTL_VDW_M (3<<22) -#define CA91CX42_DCTL_VDW_D8 0 -#define CA91CX42_DCTL_VDW_D16 (1<<22) -#define CA91CX42_DCTL_VDW_D32 (1<<23) -#define CA91CX42_DCTL_VDW_D64 (3<<22) - -#define CA91CX42_DCTL_VAS_M (7<<16) -#define CA91CX42_DCTL_VAS_A16 0 -#define CA91CX42_DCTL_VAS_A24 (1<<16) -#define CA91CX42_DCTL_VAS_A32 (1<<17) -#define CA91CX42_DCTL_VAS_USER1 (3<<17) -#define CA91CX42_DCTL_VAS_USER2 (7<<16) - -#define CA91CX42_DCTL_PGM_M (1<<14) -#define CA91CX42_DCTL_PGM_DATA 0 -#define CA91CX42_DCTL_PGM_PGM (1<<14) - -#define CA91CX42_DCTL_SUPER_M (1<<12) -#define CA91CX42_DCTL_SUPER_NPRIV 0 -#define CA91CX42_DCTL_SUPER_SUPR (1<<12) - -#define CA91CX42_DCTL_VCT_M (1<<8) -#define CA91CX42_DCTL_VCT_BLT (1<<8) -#define CA91CX42_DCTL_LD64EN (1<<7) - -/* - * DCPP Register - * offset 218 - */ -#define CA91CX42_DCPP_M 0xf -#define CA91CX42_DCPP_NULL (1<<0) - -/* - * DMA General Control/Status Register (DGCS) - * offset 220 - */ -#define CA91CX42_DGCS_GO (1<<31) -#define CA91CX42_DGCS_STOP_REQ (1<<30) -#define CA91CX42_DGCS_HALT_REQ (1<<29) -#define CA91CX42_DGCS_CHAIN (1<<27) - -#define CA91CX42_DGCS_VON_M (7<<20) - -#define CA91CX42_DGCS_VOFF_M (0xf<<16) - -#define CA91CX42_DGCS_ACT (1<<15) -#define CA91CX42_DGCS_STOP (1<<14) -#define CA91CX42_DGCS_HALT (1<<13) -#define CA91CX42_DGCS_DONE (1<<11) -#define CA91CX42_DGCS_LERR (1<<10) -#define CA91CX42_DGCS_VERR (1<<9) -#define CA91CX42_DGCS_PERR (1<<8) -#define CA91CX42_DGCS_INT_STOP (1<<6) -#define CA91CX42_DGCS_INT_HALT (1<<5) -#define CA91CX42_DGCS_INT_DONE (1<<3) -#define CA91CX42_DGCS_INT_LERR (1<<2) -#define CA91CX42_DGCS_INT_VERR (1<<1) -#define CA91CX42_DGCS_INT_PERR (1<<0) - -/* - * PCI Interrupt Enable Register - * offset 300 - */ -#define CA91CX42_LINT_LM3 0x00800000 -#define CA91CX42_LINT_LM2 0x00400000 -#define CA91CX42_LINT_LM1 0x00200000 -#define CA91CX42_LINT_LM0 0x00100000 -#define CA91CX42_LINT_MBOX3 0x00080000 -#define CA91CX42_LINT_MBOX2 0x00040000 -#define CA91CX42_LINT_MBOX1 0x00020000 -#define CA91CX42_LINT_MBOX0 0x00010000 -#define CA91CX42_LINT_ACFAIL 0x00008000 -#define CA91CX42_LINT_SYSFAIL 0x00004000 -#define CA91CX42_LINT_SW_INT 0x00002000 -#define CA91CX42_LINT_SW_IACK 0x00001000 - -#define CA91CX42_LINT_VERR 0x00000400 -#define CA91CX42_LINT_LERR 0x00000200 -#define CA91CX42_LINT_DMA 0x00000100 -#define CA91CX42_LINT_VIRQ7 0x00000080 -#define CA91CX42_LINT_VIRQ6 0x00000040 -#define CA91CX42_LINT_VIRQ5 0x00000020 -#define CA91CX42_LINT_VIRQ4 0x00000010 -#define CA91CX42_LINT_VIRQ3 0x00000008 -#define CA91CX42_LINT_VIRQ2 0x00000004 -#define CA91CX42_LINT_VIRQ1 0x00000002 -#define CA91CX42_LINT_VOWN 0x00000001 - -static const int CA91CX42_LINT_VIRQ[] = { 0, CA91CX42_LINT_VIRQ1, - CA91CX42_LINT_VIRQ2, CA91CX42_LINT_VIRQ3, - CA91CX42_LINT_VIRQ4, CA91CX42_LINT_VIRQ5, - CA91CX42_LINT_VIRQ6, CA91CX42_LINT_VIRQ7 }; - -#define CA91CX42_LINT_MBOX 0x000F0000 - -static const int CA91CX42_LINT_LM[] = { CA91CX42_LINT_LM0, CA91CX42_LINT_LM1, - CA91CX42_LINT_LM2, CA91CX42_LINT_LM3 }; - -/* - * MAST_CTL Register - * offset 400 - */ -#define CA91CX42_BM_MAST_CTL_MAXRTRY 0xF0000000 -#define CA91CX42_OF_MAST_CTL_MAXRTRY 28 -#define CA91CX42_BM_MAST_CTL_PWON 0x0F000000 -#define CA91CX42_OF_MAST_CTL_PWON 24 -#define CA91CX42_BM_MAST_CTL_VRL 0x00C00000 -#define CA91CX42_OF_MAST_CTL_VRL 22 -#define CA91CX42_BM_MAST_CTL_VRM 0x00200000 -#define CA91CX42_BM_MAST_CTL_VREL 0x00100000 -#define CA91CX42_BM_MAST_CTL_VOWN 0x00080000 -#define CA91CX42_BM_MAST_CTL_VOWN_ACK 0x00040000 -#define CA91CX42_BM_MAST_CTL_PABS 0x00001000 -#define CA91CX42_BM_MAST_CTL_BUS_NO 0x0000000F -#define CA91CX42_OF_MAST_CTL_BUS_NO 0 - -/* - * MISC_CTL Register - * offset 404 - */ -#define CA91CX42_MISC_CTL_VBTO 0xF0000000 -#define CA91CX42_MISC_CTL_VARB 0x04000000 -#define CA91CX42_MISC_CTL_VARBTO 0x03000000 -#define CA91CX42_MISC_CTL_SW_LRST 0x00800000 -#define CA91CX42_MISC_CTL_SW_SRST 0x00400000 -#define CA91CX42_MISC_CTL_BI 0x00100000 -#define CA91CX42_MISC_CTL_ENGBI 0x00080000 -#define CA91CX42_MISC_CTL_RESCIND 0x00040000 -#define CA91CX42_MISC_CTL_SYSCON 0x00020000 -#define CA91CX42_MISC_CTL_V64AUTO 0x00010000 -#define CA91CX42_MISC_CTL_RESERVED 0x0820FFFF - -#define CA91CX42_OF_MISC_CTL_VARBTO 24 -#define CA91CX42_OF_MISC_CTL_VBTO 28 - -/* - * MISC_STAT Register - * offset 408 - */ -#define CA91CX42_BM_MISC_STAT_ENDIAN 0x80000000 -#define CA91CX42_BM_MISC_STAT_LCLSIZE 0x40000000 -#define CA91CX42_BM_MISC_STAT_DY4AUTO 0x08000000 -#define CA91CX42_BM_MISC_STAT_MYBBSY 0x00200000 -#define CA91CX42_BM_MISC_STAT_DY4DONE 0x00080000 -#define CA91CX42_BM_MISC_STAT_TXFE 0x00040000 -#define CA91CX42_BM_MISC_STAT_RXFE 0x00020000 -#define CA91CX42_BM_MISC_STAT_DY4AUTOID 0x0000FF00 -#define CA91CX42_OF_MISC_STAT_DY4AUTOID 8 - -/* - * VSI Control Register - * offset F00 - */ -#define CA91CX42_VSI_CTL_EN (1<<31) -#define CA91CX42_VSI_CTL_PWEN (1<<30) -#define CA91CX42_VSI_CTL_PREN (1<<29) - -#define CA91CX42_VSI_CTL_PGM_M (3<<22) -#define CA91CX42_VSI_CTL_PGM_DATA (1<<22) -#define CA91CX42_VSI_CTL_PGM_PGM (1<<23) - -#define CA91CX42_VSI_CTL_SUPER_M (3<<20) -#define CA91CX42_VSI_CTL_SUPER_NPRIV (1<<20) -#define CA91CX42_VSI_CTL_SUPER_SUPR (1<<21) - -#define CA91CX42_VSI_CTL_VAS_M (7<<16) -#define CA91CX42_VSI_CTL_VAS_A16 0 -#define CA91CX42_VSI_CTL_VAS_A24 (1<<16) -#define CA91CX42_VSI_CTL_VAS_A32 (1<<17) -#define CA91CX42_VSI_CTL_VAS_USER1 (3<<17) -#define CA91CX42_VSI_CTL_VAS_USER2 (7<<16) - -#define CA91CX42_VSI_CTL_LD64EN (1<<7) -#define CA91CX42_VSI_CTL_LLRMW (1<<6) - -#define CA91CX42_VSI_CTL_LAS_M (3<<0) -#define CA91CX42_VSI_CTL_LAS_PCI_MS 0 -#define CA91CX42_VSI_CTL_LAS_PCI_IO (1<<0) -#define CA91CX42_VSI_CTL_LAS_PCI_CONF (1<<1) - -/* LM_CTL Register - * offset F64 - */ -#define CA91CX42_LM_CTL_EN (1<<31) -#define CA91CX42_LM_CTL_PGM (1<<23) -#define CA91CX42_LM_CTL_DATA (1<<22) -#define CA91CX42_LM_CTL_SUPR (1<<21) -#define CA91CX42_LM_CTL_NPRIV (1<<20) -#define CA91CX42_LM_CTL_AS_M (5<<16) -#define CA91CX42_LM_CTL_AS_A16 0 -#define CA91CX42_LM_CTL_AS_A24 (1<<16) -#define CA91CX42_LM_CTL_AS_A32 (1<<17) - -/* - * VRAI_CTL Register - * offset F70 - */ -#define CA91CX42_BM_VRAI_CTL_EN 0x80000000 -#define CA91CX42_BM_VRAI_CTL_PGM 0x00C00000 -#define CA91CX42_OF_VRAI_CTL_PGM 22 -#define CA91CX42_BM_VRAI_CTL_SUPER 0x00300000 -#define CA91CX42_OF_VRAI_CTL_SUPER 20 -#define CA91CX42_BM_VRAI_CTL_VAS 0x00030000 -#define CA91CX42_OF_VRAI_CTL_VAS 16 - -/* VCSR_CTL Register - * offset F80 - */ -#define CA91CX42_VCSR_CTL_EN (1<<31) - -#define CA91CX42_VCSR_CTL_LAS_M (3<<0) -#define CA91CX42_VCSR_CTL_LAS_PCI_MS 0 -#define CA91CX42_VCSR_CTL_LAS_PCI_IO (1<<0) -#define CA91CX42_VCSR_CTL_LAS_PCI_CONF (1<<1) - -/* VCSR_BS Register - * offset FFC - */ -#define CA91CX42_VCSR_BS_SLOT_M (0x1F<<27) - -#endif /* _CA91CX42_H */ diff --git a/drivers/staging/vme/bridges/vme_tsi148.c b/drivers/staging/vme/bridges/vme_tsi148.c deleted file mode 100644 index 492ddb2d510..00000000000 --- a/drivers/staging/vme/bridges/vme_tsi148.c +++ /dev/null @@ -1,2641 +0,0 @@ -/* - * Support for the Tundra TSI148 VME-PCI Bridge Chip - * - * Author: Martyn Welch <martyn.welch@ge.com> - * Copyright 2008 GE Intelligent Platforms Embedded Systems, Inc. - * - * Based on work by Tom Armistead and Ajit Prem - * Copyright 2004 Motorola Inc. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ - -#include <linux/module.h> -#include <linux/moduleparam.h> -#include <linux/mm.h> -#include <linux/types.h> -#include <linux/errno.h> -#include <linux/proc_fs.h> -#include <linux/pci.h> -#include <linux/poll.h> -#include <linux/dma-mapping.h> -#include <linux/interrupt.h> -#include <linux/spinlock.h> -#include <linux/sched.h> -#include <linux/slab.h> -#include <linux/time.h> -#include <linux/io.h> -#include <linux/uaccess.h> - -#include "../vme.h" -#include "../vme_bridge.h" -#include "vme_tsi148.h" - -static int __init tsi148_init(void); -static int tsi148_probe(struct pci_dev *, const struct pci_device_id *); -static void tsi148_remove(struct pci_dev *); -static void __exit tsi148_exit(void); - - -/* Module parameter */ -static int err_chk; -static int geoid; - -static char driver_name[] = "vme_tsi148"; - -static const struct pci_device_id tsi148_ids[] = { - { PCI_DEVICE(PCI_VENDOR_ID_TUNDRA, PCI_DEVICE_ID_TUNDRA_TSI148) }, - { }, -}; - -static struct pci_driver tsi148_driver = { - .name = driver_name, - .id_table = tsi148_ids, - .probe = tsi148_probe, - .remove = tsi148_remove, -}; - -static void reg_join(unsigned int high, unsigned int low, - unsigned long long *variable) -{ - *variable = (unsigned long long)high << 32; - *variable |= (unsigned long long)low; -} - -static void reg_split(unsigned long long variable, unsigned int *high, - unsigned int *low) -{ - *low = (unsigned int)variable & 0xFFFFFFFF; - *high = (unsigned int)(variable >> 32); -} - -/* - * Wakes up DMA queue. - */ -static u32 tsi148_DMA_irqhandler(struct tsi148_driver *bridge, - int channel_mask) -{ - u32 serviced = 0; - - if (channel_mask & TSI148_LCSR_INTS_DMA0S) { - wake_up(&(bridge->dma_queue[0])); - serviced |= TSI148_LCSR_INTC_DMA0C; - } - if (channel_mask & TSI148_LCSR_INTS_DMA1S) { - wake_up(&(bridge->dma_queue[1])); - serviced |= TSI148_LCSR_INTC_DMA1C; - } - - return serviced; -} - -/* - * Wake up location monitor queue - */ -static u32 tsi148_LM_irqhandler(struct tsi148_driver *bridge, u32 stat) -{ - int i; - u32 serviced = 0; - - for (i = 0; i < 4; i++) { - if (stat & TSI148_LCSR_INTS_LMS[i]) { - /* We only enable interrupts if the callback is set */ - bridge->lm_callback[i](i); - serviced |= TSI148_LCSR_INTC_LMC[i]; - } - } - - return serviced; -} - -/* - * Wake up mail box queue. - * - * XXX This functionality is not exposed up though API. - */ -static u32 tsi148_MB_irqhandler(struct vme_bridge *tsi148_bridge, u32 stat) -{ - int i; - u32 val; - u32 serviced = 0; - struct tsi148_driver *bridge; - - bridge = tsi148_bridge->driver_priv; - - for (i = 0; i < 4; i++) { - if (stat & TSI148_LCSR_INTS_MBS[i]) { - val = ioread32be(bridge->base + TSI148_GCSR_MBOX[i]); - dev_err(tsi148_bridge->parent, "VME Mailbox %d received" - ": 0x%x\n", i, val); - serviced |= TSI148_LCSR_INTC_MBC[i]; - } - } - - return serviced; -} - -/* - * Display error & status message when PERR (PCI) exception interrupt occurs. - */ -static u32 tsi148_PERR_irqhandler(struct vme_bridge *tsi148_bridge) -{ - struct tsi148_driver *bridge; - - bridge = tsi148_bridge->driver_priv; - - dev_err(tsi148_bridge->parent, "PCI Exception at address: 0x%08x:%08x, " - "attributes: %08x\n", - ioread32be(bridge->base + TSI148_LCSR_EDPAU), - ioread32be(bridge->base + TSI148_LCSR_EDPAL), - ioread32be(bridge->base + TSI148_LCSR_EDPAT)); - - dev_err(tsi148_bridge->parent, "PCI-X attribute reg: %08x, PCI-X split " - "completion reg: %08x\n", - ioread32be(bridge->base + TSI148_LCSR_EDPXA), - ioread32be(bridge->base + TSI148_LCSR_EDPXS)); - - iowrite32be(TSI148_LCSR_EDPAT_EDPCL, bridge->base + TSI148_LCSR_EDPAT); - - return TSI148_LCSR_INTC_PERRC; -} - -/* - * Save address and status when VME error interrupt occurs. - */ -static u32 tsi148_VERR_irqhandler(struct vme_bridge *tsi148_bridge) -{ - unsigned int error_addr_high, error_addr_low; - unsigned long long error_addr; - u32 error_attrib; - struct vme_bus_error *error; - struct tsi148_driver *bridge; - - bridge = tsi148_bridge->driver_priv; - - error_addr_high = ioread32be(bridge->base + TSI148_LCSR_VEAU); - error_addr_low = ioread32be(bridge->base + TSI148_LCSR_VEAL); - error_attrib = ioread32be(bridge->base + TSI148_LCSR_VEAT); - - reg_join(error_addr_high, error_addr_low, &error_addr); - - /* Check for exception register overflow (we have lost error data) */ - if (error_attrib & TSI148_LCSR_VEAT_VEOF) { - dev_err(tsi148_bridge->parent, "VME Bus Exception Overflow " - "Occurred\n"); - } - - error = kmalloc(sizeof(struct vme_bus_error), GFP_ATOMIC); - if (error) { - error->address = error_addr; - error->attributes = error_attrib; - list_add_tail(&(error->list), &(tsi148_bridge->vme_errors)); - } else { - dev_err(tsi148_bridge->parent, "Unable to alloc memory for " - "VMEbus Error reporting\n"); - dev_err(tsi148_bridge->parent, "VME Bus Error at address: " - "0x%llx, attributes: %08x\n", error_addr, error_attrib); - } - - /* Clear Status */ - iowrite32be(TSI148_LCSR_VEAT_VESCL, bridge->base + TSI148_LCSR_VEAT); - - return TSI148_LCSR_INTC_VERRC; -} - -/* - * Wake up IACK queue. - */ -static u32 tsi148_IACK_irqhandler(struct tsi148_driver *bridge) -{ - wake_up(&(bridge->iack_queue)); - - return TSI148_LCSR_INTC_IACKC; -} - -/* - * Calling VME bus interrupt callback if provided. - */ -static u32 tsi148_VIRQ_irqhandler(struct vme_bridge *tsi148_bridge, - u32 stat) -{ - int vec, i, serviced = 0; - struct tsi148_driver *bridge; - - bridge = tsi148_bridge->driver_priv; - - for (i = 7; i > 0; i--) { - if (stat & (1 << i)) { - /* - * Note: Even though the registers are defined as - * 32-bits in the spec, we only want to issue 8-bit - * IACK cycles on the bus, read from offset 3. - */ - vec = ioread8(bridge->base + TSI148_LCSR_VIACK[i] + 3); - - vme_irq_handler(tsi148_bridge, i, vec); - - serviced |= (1 << i); - } - } - - return serviced; -} - -/* - * Top level interrupt handler. Clears appropriate interrupt status bits and - * then calls appropriate sub handler(s). - */ -static irqreturn_t tsi148_irqhandler(int irq, void *ptr) -{ - u32 stat, enable, serviced = 0; - struct vme_bridge *tsi148_bridge; - struct tsi148_driver *bridge; - - tsi148_bridge = ptr; - - bridge = tsi148_bridge->driver_priv; - - /* Determine which interrupts are unmasked and set */ - enable = ioread32be(bridge->base + TSI148_LCSR_INTEO); - stat = ioread32be(bridge->base + TSI148_LCSR_INTS); - - /* Only look at unmasked interrupts */ - stat &= enable; - - if (unlikely(!stat)) - return IRQ_NONE; - - /* Call subhandlers as appropriate */ - /* DMA irqs */ - if (stat & (TSI148_LCSR_INTS_DMA1S | TSI148_LCSR_INTS_DMA0S)) - serviced |= tsi148_DMA_irqhandler(bridge, stat); - - /* Location monitor irqs */ - if (stat & (TSI148_LCSR_INTS_LM3S | TSI148_LCSR_INTS_LM2S | - TSI148_LCSR_INTS_LM1S | TSI148_LCSR_INTS_LM0S)) - serviced |= tsi148_LM_irqhandler(bridge, stat); - - /* Mail box irqs */ - if (stat & (TSI148_LCSR_INTS_MB3S | TSI148_LCSR_INTS_MB2S | - TSI148_LCSR_INTS_MB1S | TSI148_LCSR_INTS_MB0S)) - serviced |= tsi148_MB_irqhandler(tsi148_bridge, stat); - - /* PCI bus error */ - if (stat & TSI148_LCSR_INTS_PERRS) - serviced |= tsi148_PERR_irqhandler(tsi148_bridge); - - /* VME bus error */ - if (stat & TSI148_LCSR_INTS_VERRS) - serviced |= tsi148_VERR_irqhandler(tsi148_bridge); - - /* IACK irq */ - if (stat & TSI148_LCSR_INTS_IACKS) - serviced |= tsi148_IACK_irqhandler(bridge); - - /* VME bus irqs */ - if (stat & (TSI148_LCSR_INTS_IRQ7S | TSI148_LCSR_INTS_IRQ6S | - TSI148_LCSR_INTS_IRQ5S | TSI148_LCSR_INTS_IRQ4S | - TSI148_LCSR_INTS_IRQ3S | TSI148_LCSR_INTS_IRQ2S | - TSI148_LCSR_INTS_IRQ1S)) - serviced |= tsi148_VIRQ_irqhandler(tsi148_bridge, stat); - - /* Clear serviced interrupts */ - iowrite32be(serviced, bridge->base + TSI148_LCSR_INTC); - - return IRQ_HANDLED; -} - -static int tsi148_irq_init(struct vme_bridge *tsi148_bridge) -{ - int result; - unsigned int tmp; - struct pci_dev *pdev; - struct tsi148_driver *bridge; - - pdev = container_of(tsi148_bridge->parent, struct pci_dev, dev); - - bridge = tsi148_bridge->driver_priv; - - /* Initialise list for VME bus errors */ - INIT_LIST_HEAD(&(tsi148_bridge->vme_errors)); - - mutex_init(&(tsi148_bridge->irq_mtx)); - - result = request_irq(pdev->irq, - tsi148_irqhandler, - IRQF_SHARED, - driver_name, tsi148_bridge); - if (result) { - dev_err(tsi148_bridge->parent, "Can't get assigned pci irq " - "vector %02X\n", pdev->irq); - return result; - } - - /* Enable and unmask interrupts */ - tmp = TSI148_LCSR_INTEO_DMA1EO | TSI148_LCSR_INTEO_DMA0EO | - TSI148_LCSR_INTEO_MB3EO | TSI148_LCSR_INTEO_MB2EO | - TSI148_LCSR_INTEO_MB1EO | TSI148_LCSR_INTEO_MB0EO | - TSI148_LCSR_INTEO_PERREO | TSI148_LCSR_INTEO_VERREO | - TSI148_LCSR_INTEO_IACKEO; - - /* This leaves the following interrupts masked. - * TSI148_LCSR_INTEO_VIEEO - * TSI148_LCSR_INTEO_SYSFLEO - * TSI148_LCSR_INTEO_ACFLEO - */ - - /* Don't enable Location Monitor interrupts here - they will be - * enabled when the location monitors are properly configured and - * a callback has been attached. - * TSI148_LCSR_INTEO_LM0EO - * TSI148_LCSR_INTEO_LM1EO - * TSI148_LCSR_INTEO_LM2EO - * TSI148_LCSR_INTEO_LM3EO - */ - - /* Don't enable VME interrupts until we add a handler, else the board - * will respond to it and we don't want that unless it knows how to - * properly deal with it. - * TSI148_LCSR_INTEO_IRQ7EO - * TSI148_LCSR_INTEO_IRQ6EO - * TSI148_LCSR_INTEO_IRQ5EO - * TSI148_LCSR_INTEO_IRQ4EO - * TSI148_LCSR_INTEO_IRQ3EO - * TSI148_LCSR_INTEO_IRQ2EO - * TSI148_LCSR_INTEO_IRQ1EO - */ - - iowrite32be(tmp, bridge->base + TSI148_LCSR_INTEO); - iowrite32be(tmp, bridge->base + TSI148_LCSR_INTEN); - - return 0; -} - -static void tsi148_irq_exit(struct tsi148_driver *bridge, struct pci_dev *pdev) -{ - /* Turn off interrupts */ - iowrite32be(0x0, bridge->base + TSI148_LCSR_INTEO); - iowrite32be(0x0, bridge->base + TSI148_LCSR_INTEN); - - /* Clear all interrupts */ - iowrite32be(0xFFFFFFFF, bridge->base + TSI148_LCSR_INTC); - - /* Detach interrupt handler */ - free_irq(pdev->irq, pdev); -} - -/* - * Check to see if an IACk has been received, return true (1) or false (0). - */ -int tsi148_iack_received(struct tsi148_driver *bridge) -{ - u32 tmp; - - tmp = ioread32be(bridge->base + TSI148_LCSR_VICR); - - if (tmp & TSI148_LCSR_VICR_IRQS) - return 0; - else - return 1; -} - -/* - * Configure VME interrupt - */ -void tsi148_irq_set(struct vme_bridge *tsi148_bridge, int level, - int state, int sync) -{ - struct pci_dev *pdev; - u32 tmp; - struct tsi148_driver *bridge; - - bridge = tsi148_bridge->driver_priv; - - /* We need to do the ordering differently for enabling and disabling */ - if (state == 0) { - tmp = ioread32be(bridge->base + TSI148_LCSR_INTEN); - tmp &= ~TSI148_LCSR_INTEN_IRQEN[level - 1]; - iowrite32be(tmp, bridge->base + TSI148_LCSR_INTEN); - - tmp = ioread32be(bridge->base + TSI148_LCSR_INTEO); - tmp &= ~TSI148_LCSR_INTEO_IRQEO[level - 1]; - iowrite32be(tmp, bridge->base + TSI148_LCSR_INTEO); - - if (sync != 0) { - pdev = container_of(tsi148_bridge->parent, - struct pci_dev, dev); - - synchronize_irq(pdev->irq); - } - } else { - tmp = ioread32be(bridge->base + TSI148_LCSR_INTEO); - tmp |= TSI148_LCSR_INTEO_IRQEO[level - 1]; - iowrite32be(tmp, bridge->base + TSI148_LCSR_INTEO); - - tmp = ioread32be(bridge->base + TSI148_LCSR_INTEN); - tmp |= TSI148_LCSR_INTEN_IRQEN[level - 1]; - iowrite32be(tmp, bridge->base + TSI148_LCSR_INTEN); - } -} - -/* - * Generate a VME bus interrupt at the requested level & vector. Wait for - * interrupt to be acked. - */ -int tsi148_irq_generate(struct vme_bridge *tsi148_bridge, int level, int statid) -{ - u32 tmp; - struct tsi148_driver *bridge; - - bridge = tsi148_bridge->driver_priv; - - mutex_lock(&(bridge->vme_int)); - - /* Read VICR register */ - tmp = ioread32be(bridge->base + TSI148_LCSR_VICR); - - /* Set Status/ID */ - tmp = (tmp & ~TSI148_LCSR_VICR_STID_M) | - (statid & TSI148_LCSR_VICR_STID_M); - iowrite32be(tmp, bridge->base + TSI148_LCSR_VICR); - - /* Assert VMEbus IRQ */ - tmp = tmp | TSI148_LCSR_VICR_IRQL[level]; - iowrite32be(tmp, bridge->base + TSI148_LCSR_VICR); - - /* XXX Consider implementing a timeout? */ - wait_event_interruptible(bridge->iack_queue, - tsi148_iack_received(bridge)); - - mutex_unlock(&(bridge->vme_int)); - - return 0; -} - -/* - * Find the first error in this address range - */ -static struct vme_bus_error *tsi148_find_error(struct vme_bridge *tsi148_bridge, - vme_address_t aspace, unsigned long long address, size_t count) -{ - struct list_head *err_pos; - struct vme_bus_error *vme_err, *valid = NULL; - unsigned long long bound; - - bound = address + count; - - /* - * XXX We are currently not looking at the address space when parsing - * for errors. This is because parsing the Address Modifier Codes - * is going to be quite resource intensive to do properly. We - * should be OK just looking at the addresses and this is certainly - * much better than what we had before. - */ - err_pos = NULL; - /* Iterate through errors */ - list_for_each(err_pos, &(tsi148_bridge->vme_errors)) { - vme_err = list_entry(err_pos, struct vme_bus_error, list); - if ((vme_err->address >= address) && - (vme_err->address < bound)) { - - valid = vme_err; - break; - } - } - - return valid; -} - -/* - * Clear errors in the provided address range. - */ -static void tsi148_clear_errors(struct vme_bridge *tsi148_bridge, - vme_address_t aspace, unsigned long long address, size_t count) -{ - struct list_head *err_pos, *temp; - struct vme_bus_error *vme_err; - unsigned long long bound; - - bound = address + count; - - /* - * XXX We are currently not looking at the address space when parsing - * for errors. This is because parsing the Address Modifier Codes - * is going to be quite resource intensive to do properly. We - * should be OK just looking at the addresses and this is certainly - * much better than what we had before. - */ - err_pos = NULL; - /* Iterate through errors */ - list_for_each_safe(err_pos, temp, &(tsi148_bridge->vme_errors)) { - vme_err = list_entry(err_pos, struct vme_bus_error, list); - - if ((vme_err->address >= address) && - (vme_err->address < bound)) { - - list_del(err_pos); - kfree(vme_err); - } - } -} - -/* - * Initialize a slave window with the requested attributes. - */ -int tsi148_slave_set(struct vme_slave_resource *image, int enabled, - unsigned long long vme_base, unsigned long long size, - dma_addr_t pci_base, vme_address_t aspace, vme_cycle_t cycle) -{ - unsigned int i, addr = 0, granularity = 0; - unsigned int temp_ctl = 0; - unsigned int vme_base_low, vme_base_high; - unsigned int vme_bound_low, vme_bound_high; - unsigned int pci_offset_low, pci_offset_high; - unsigned long long vme_bound, pci_offset; - struct vme_bridge *tsi148_bridge; - struct tsi148_driver *bridge; - - tsi148_bridge = image->parent; - bridge = tsi148_bridge->driver_priv; - - i = image->number; - - switch (aspace) { - case VME_A16: - granularity = 0x10; - addr |= TSI148_LCSR_ITAT_AS_A16; - break; - case VME_A24: - granularity = 0x1000; - addr |= TSI148_LCSR_ITAT_AS_A24; - break; - case VME_A32: - granularity = 0x10000; - addr |= TSI148_LCSR_ITAT_AS_A32; - break; - case VME_A64: - granularity = 0x10000; - addr |= TSI148_LCSR_ITAT_AS_A64; - break; - case VME_CRCSR: - case VME_USER1: - case VME_USER2: - case VME_USER3: - case VME_USER4: - default: - dev_err(tsi148_bridge->parent, "Invalid address space\n"); - return -EINVAL; - break; - } - - /* Convert 64-bit variables to 2x 32-bit variables */ - reg_split(vme_base, &vme_base_high, &vme_base_low); - - /* - * Bound address is a valid address for the window, adjust - * accordingly - */ - vme_bound = vme_base + size - granularity; - reg_split(vme_bound, &vme_bound_high, &vme_bound_low); - pci_offset = (unsigned long long)pci_base - vme_base; - reg_split(pci_offset, &pci_offset_high, &pci_offset_low); - - if (vme_base_low & (granularity - 1)) { - dev_err(tsi148_bridge->parent, "Invalid VME base alignment\n"); - return -EINVAL; - } - if (vme_bound_low & (granularity - 1)) { - dev_err(tsi148_bridge->parent, "Invalid VME bound alignment\n"); - return -EINVAL; - } - if (pci_offset_low & (granularity - 1)) { - dev_err(tsi148_bridge->parent, "Invalid PCI Offset " - "alignment\n"); - return -EINVAL; - } - - /* Disable while we are mucking around */ - temp_ctl = ioread32be(bridge->base + TSI148_LCSR_IT[i] + - TSI148_LCSR_OFFSET_ITAT); - temp_ctl &= ~TSI148_LCSR_ITAT_EN; - iowrite32be(temp_ctl, bridge->base + TSI148_LCSR_IT[i] + - TSI148_LCSR_OFFSET_ITAT); - - /* Setup mapping */ - iowrite32be(vme_base_high, bridge->base + TSI148_LCSR_IT[i] + - TSI148_LCSR_OFFSET_ITSAU); - iowrite32be(vme_base_low, bridge->base + TSI148_LCSR_IT[i] + - TSI148_LCSR_OFFSET_ITSAL); - iowrite32be(vme_bound_high, bridge->base + TSI148_LCSR_IT[i] + - TSI148_LCSR_OFFSET_ITEAU); - iowrite32be(vme_bound_low, bridge->base + TSI148_LCSR_IT[i] + - TSI148_LCSR_OFFSET_ITEAL); - iowrite32be(pci_offset_high, bridge->base + TSI148_LCSR_IT[i] + - TSI148_LCSR_OFFSET_ITOFU); - iowrite32be(pci_offset_low, bridge->base + TSI148_LCSR_IT[i] + - TSI148_LCSR_OFFSET_ITOFL); - - /* Setup 2eSST speeds */ - temp_ctl &= ~TSI148_LCSR_ITAT_2eSSTM_M; - switch (cycle & (VME_2eSST160 | VME_2eSST267 | VME_2eSST320)) { - case VME_2eSST160: - temp_ctl |= TSI148_LCSR_ITAT_2eSSTM_160; - break; - case VME_2eSST267: - temp_ctl |= TSI148_LCSR_ITAT_2eSSTM_267; - break; - case VME_2eSST320: - temp_ctl |= TSI148_LCSR_ITAT_2eSSTM_320; - break; - } - - /* Setup cycle types */ - temp_ctl &= ~(0x1F << 7); - if (cycle & VME_BLT) - temp_ctl |= TSI148_LCSR_ITAT_BLT; - if (cycle & VME_MBLT) - temp_ctl |= TSI148_LCSR_ITAT_MBLT; - if (cycle & VME_2eVME) - temp_ctl |= TSI148_LCSR_ITAT_2eVME; - if (cycle & VME_2eSST) - temp_ctl |= TSI148_LCSR_ITAT_2eSST; - if (cycle & VME_2eSSTB) - temp_ctl |= TSI148_LCSR_ITAT_2eSSTB; - - /* Setup address space */ - temp_ctl &= ~TSI148_LCSR_ITAT_AS_M; - temp_ctl |= addr; - - temp_ctl &= ~0xF; - if (cycle & VME_SUPER) - temp_ctl |= TSI148_LCSR_ITAT_SUPR ; - if (cycle & VME_USER) - temp_ctl |= TSI148_LCSR_ITAT_NPRIV; - if (cycle & VME_PROG) - temp_ctl |= TSI148_LCSR_ITAT_PGM; - if (cycle & VME_DATA) - temp_ctl |= TSI148_LCSR_ITAT_DATA; - - /* Write ctl reg without enable */ - iowrite32be(temp_ctl, bridge->base + TSI148_LCSR_IT[i] + - TSI148_LCSR_OFFSET_ITAT); - - if (enabled) - temp_ctl |= TSI148_LCSR_ITAT_EN; - - iowrite32be(temp_ctl, bridge->base + TSI148_LCSR_IT[i] + - TSI148_LCSR_OFFSET_ITAT); - - return 0; -} - -/* - * Get slave window configuration. - */ -int tsi148_slave_get(struct vme_slave_resource *image, int *enabled, - unsigned long long *vme_base, unsigned long long *size, - dma_addr_t *pci_base, vme_address_t *aspace, vme_cycle_t *cycle) -{ - unsigned int i, granularity = 0, ctl = 0; - unsigned int vme_base_low, vme_base_high; - unsigned int vme_bound_low, vme_bound_high; - unsigned int pci_offset_low, pci_offset_high; - unsigned long long vme_bound, pci_offset; - struct tsi148_driver *bridge; - - bridge = image->parent->driver_priv; - - i = image->number; - - /* Read registers */ - ctl = ioread32be(bridge->base + TSI148_LCSR_IT[i] + - TSI148_LCSR_OFFSET_ITAT); - - vme_base_high = ioread32be(bridge->base + TSI148_LCSR_IT[i] + - TSI148_LCSR_OFFSET_ITSAU); - vme_base_low = ioread32be(bridge->base + TSI148_LCSR_IT[i] + - TSI148_LCSR_OFFSET_ITSAL); - vme_bound_high = ioread32be(bridge->base + TSI148_LCSR_IT[i] + - TSI148_LCSR_OFFSET_ITEAU); - vme_bound_low = ioread32be(bridge->base + TSI148_LCSR_IT[i] + - TSI148_LCSR_OFFSET_ITEAL); - pci_offset_high = ioread32be(bridge->base + TSI148_LCSR_IT[i] + - TSI148_LCSR_OFFSET_ITOFU); - pci_offset_low = ioread32be(bridge->base + TSI148_LCSR_IT[i] + - TSI148_LCSR_OFFSET_ITOFL); - - /* Convert 64-bit variables to 2x 32-bit variables */ - reg_join(vme_base_high, vme_base_low, vme_base); - reg_join(vme_bound_high, vme_bound_low, &vme_bound); - reg_join(pci_offset_high, pci_offset_low, &pci_offset); - - *pci_base = (dma_addr_t)vme_base + pci_offset; - - *enabled = 0; - *aspace = 0; - *cycle = 0; - - if (ctl & TSI148_LCSR_ITAT_EN) - *enabled = 1; - - if ((ctl & TSI148_LCSR_ITAT_AS_M) == TSI148_LCSR_ITAT_AS_A16) { - granularity = 0x10; - *aspace |= VME_A16; - } - if ((ctl & TSI148_LCSR_ITAT_AS_M) == TSI148_LCSR_ITAT_AS_A24) { - granularity = 0x1000; - *aspace |= VME_A24; - } - if ((ctl & TSI148_LCSR_ITAT_AS_M) == TSI148_LCSR_ITAT_AS_A32) { - granularity = 0x10000; - *aspace |= VME_A32; - } - if ((ctl & TSI148_LCSR_ITAT_AS_M) == TSI148_LCSR_ITAT_AS_A64) { - granularity = 0x10000; - *aspace |= VME_A64; - } - - /* Need granularity before we set the size */ - *size = (unsigned long long)((vme_bound - *vme_base) + granularity); - - - if ((ctl & TSI148_LCSR_ITAT_2eSSTM_M) == TSI148_LCSR_ITAT_2eSSTM_160) - *cycle |= VME_2eSST160; - if ((ctl & TSI148_LCSR_ITAT_2eSSTM_M) == TSI148_LCSR_ITAT_2eSSTM_267) - *cycle |= VME_2eSST267; - if ((ctl & TSI148_LCSR_ITAT_2eSSTM_M) == TSI148_LCSR_ITAT_2eSSTM_320) - *cycle |= VME_2eSST320; - - if (ctl & TSI148_LCSR_ITAT_BLT) - *cycle |= VME_BLT; - if (ctl & TSI148_LCSR_ITAT_MBLT) - *cycle |= VME_MBLT; - if (ctl & TSI148_LCSR_ITAT_2eVME) - *cycle |= VME_2eVME; - if (ctl & TSI148_LCSR_ITAT_2eSST) - *cycle |= VME_2eSST; - if (ctl & TSI148_LCSR_ITAT_2eSSTB) - *cycle |= VME_2eSSTB; - - if (ctl & TSI148_LCSR_ITAT_SUPR) - *cycle |= VME_SUPER; - if (ctl & TSI148_LCSR_ITAT_NPRIV) - *cycle |= VME_USER; - if (ctl & TSI148_LCSR_ITAT_PGM) - *cycle |= VME_PROG; - if (ctl & TSI148_LCSR_ITAT_DATA) - *cycle |= VME_DATA; - - return 0; -} - -/* - * Allocate and map PCI Resource - */ -static int tsi148_alloc_resource(struct vme_master_resource *image, - unsigned long long size) -{ - unsigned long long existing_size; - int retval = 0; - struct pci_dev *pdev; - struct vme_bridge *tsi148_bridge; - - tsi148_bridge = image->parent; - - pdev = container_of(tsi148_bridge->parent, struct pci_dev, dev); - - existing_size = (unsigned long long)(image->bus_resource.end - - image->bus_resource.start); - - /* If the existing size is OK, return */ - if ((size != 0) && (existing_size == (size - 1))) - return 0; - - if (existing_size != 0) { - iounmap(image->kern_base); - image->kern_base = NULL; - if (image->bus_resource.name != NULL) - kfree(image->bus_resource.name); - release_resource(&(image->bus_resource)); - memset(&(image->bus_resource), 0, sizeof(struct resource)); - } - - /* Exit here if size is zero */ - if (size == 0) - return 0; - - if (image->bus_resource.name == NULL) { - image->bus_resource.name = kmalloc(VMENAMSIZ+3, GFP_ATOMIC); - if (image->bus_resource.name == NULL) { - dev_err(tsi148_bridge->parent, "Unable to allocate " - "memory for resource name\n"); - retval = -ENOMEM; - goto err_name; - } - } - - sprintf((char *)image->bus_resource.name, "%s.%d", tsi148_bridge->name, - image->number); - - image->bus_resource.start = 0; - image->bus_resource.end = (unsigned long)size; - image->bus_resource.flags = IORESOURCE_MEM; - - retval = pci_bus_alloc_resource(pdev->bus, - &(image->bus_resource), size, size, PCIBIOS_MIN_MEM, - 0, NULL, NULL); - if (retval) { - dev_err(tsi148_bridge->parent, "Failed to allocate mem " - "resource for window %d size 0x%lx start 0x%lx\n", - image->number, (unsigned long)size, - (unsigned long)image->bus_resource.start); - goto err_resource; - } - - image->kern_base = ioremap_nocache( - image->bus_resource.start, size); - if (image->kern_base == NULL) { - dev_err(tsi148_bridge->parent, "Failed to remap resource\n"); - retval = -ENOMEM; - goto err_remap; - } - - return 0; - - iounmap(image->kern_base); - image->kern_base = NULL; -err_remap: - release_resource(&(image->bus_resource)); -err_resource: - kfree(image->bus_resource.name); - memset(&(image->bus_resource), 0, sizeof(struct resource)); -err_name: - return retval; -} - -/* - * Free and unmap PCI Resource - */ -static void tsi148_free_resource(struct vme_master_resource *image) -{ - iounmap(image->kern_base); - image->kern_base = NULL; - release_resource(&(image->bus_resource)); - kfree(image->bus_resource.name); - memset(&(image->bus_resource), 0, sizeof(struct resource)); -} - -/* - * Set the attributes of an outbound window. - */ -int tsi148_master_set(struct vme_master_resource *image, int enabled, - unsigned long long vme_base, unsigned long long size, - vme_address_t aspace, vme_cycle_t cycle, vme_width_t dwidth) -{ - int retval = 0; - unsigned int i; - unsigned int temp_ctl = 0; - unsigned int pci_base_low, pci_base_high; - unsigned int pci_bound_low, pci_bound_high; - unsigned int vme_offset_low, vme_offset_high; - unsigned long long pci_bound, vme_offset, pci_base; - struct vme_bridge *tsi148_bridge; - struct tsi148_driver *bridge; - - tsi148_bridge = image->parent; - - bridge = tsi148_bridge->driver_priv; - - /* Verify input data */ - if (vme_base & 0xFFFF) { - dev_err(tsi148_bridge->parent, "Invalid VME Window " - "alignment\n"); - retval = -EINVAL; - goto err_window; - } - - if ((size == 0) && (enabled != 0)) { - dev_err(tsi148_bridge->parent, "Size must be non-zero for " - "enabled windows\n"); - retval = -EINVAL; - goto err_window; - } - - spin_lock(&(image->lock)); - - /* Let's allocate the resource here rather than further up the stack as - * it avoids pushing loads of bus dependant stuff up the stack. If size - * is zero, any existing resource will be freed. - */ - retval = tsi148_alloc_resource(image, size); - if (retval) { - spin_unlock(&(image->lock)); - dev_err(tsi148_bridge->parent, "Unable to allocate memory for " - "resource\n"); - goto err_res; - } - - if (size == 0) { - pci_base = 0; - pci_bound = 0; - vme_offset = 0; - } else { - pci_base = (unsigned long long)image->bus_resource.start; - - /* - * Bound address is a valid address for the window, adjust - * according to window granularity. - */ - pci_bound = pci_base + (size - 0x10000); - vme_offset = vme_base - pci_base; - } - - /* Convert 64-bit variables to 2x 32-bit variables */ - reg_split(pci_base, &pci_base_high, &pci_base_low); - reg_split(pci_bound, &pci_bound_high, &pci_bound_low); - reg_split(vme_offset, &vme_offset_high, &vme_offset_low); - - if (pci_base_low & 0xFFFF) { - spin_unlock(&(image->lock)); - dev_err(tsi148_bridge->parent, "Invalid PCI base alignment\n"); - retval = -EINVAL; - goto err_gran; - } - if (pci_bound_low & 0xFFFF) { - spin_unlock(&(image->lock)); - dev_err(tsi148_bridge->parent, "Invalid PCI bound alignment\n"); - retval = -EINVAL; - goto err_gran; - } - if (vme_offset_low & 0xFFFF) { - spin_unlock(&(image->lock)); - dev_err(tsi148_bridge->parent, "Invalid VME Offset " - "alignment\n"); - retval = -EINVAL; - goto err_gran; - } - - i = image->number; - - /* Disable while we are mucking around */ - temp_ctl = ioread32be(bridge->base + TSI148_LCSR_OT[i] + - TSI148_LCSR_OFFSET_OTAT); - temp_ctl &= ~TSI148_LCSR_OTAT_EN; - iowrite32be(temp_ctl, bridge->base + TSI148_LCSR_OT[i] + - TSI148_LCSR_OFFSET_OTAT); - - /* Setup 2eSST speeds */ - temp_ctl &= ~TSI148_LCSR_OTAT_2eSSTM_M; - switch (cycle & (VME_2eSST160 | VME_2eSST267 | VME_2eSST320)) { - case VME_2eSST160: - temp_ctl |= TSI148_LCSR_OTAT_2eSSTM_160; - break; - case VME_2eSST267: - temp_ctl |= TSI148_LCSR_OTAT_2eSSTM_267; - break; - case VME_2eSST320: - temp_ctl |= TSI148_LCSR_OTAT_2eSSTM_320; - break; - } - - /* Setup cycle types */ - if (cycle & VME_BLT) { - temp_ctl &= ~TSI148_LCSR_OTAT_TM_M; - temp_ctl |= TSI148_LCSR_OTAT_TM_BLT; - } - if (cycle & VME_MBLT) { - temp_ctl &= ~TSI148_LCSR_OTAT_TM_M; - temp_ctl |= TSI148_LCSR_OTAT_TM_MBLT; - } - if (cycle & VME_2eVME) { - temp_ctl &= ~TSI148_LCSR_OTAT_TM_M; - temp_ctl |= TSI148_LCSR_OTAT_TM_2eVME; - } - if (cycle & VME_2eSST) { - temp_ctl &= ~TSI148_LCSR_OTAT_TM_M; - temp_ctl |= TSI148_LCSR_OTAT_TM_2eSST; - } - if (cycle & VME_2eSSTB) { - dev_warn(tsi148_bridge->parent, "Currently not setting " - "Broadcast Select Registers\n"); - temp_ctl &= ~TSI148_LCSR_OTAT_TM_M; - temp_ctl |= TSI148_LCSR_OTAT_TM_2eSSTB; - } - - /* Setup data width */ - temp_ctl &= ~TSI148_LCSR_OTAT_DBW_M; - switch (dwidth) { - case VME_D16: - temp_ctl |= TSI148_LCSR_OTAT_DBW_16; - break; - case VME_D32: - temp_ctl |= TSI148_LCSR_OTAT_DBW_32; - break; - default: - spin_unlock(&(image->lock)); - dev_err(tsi148_bridge->parent, "Invalid data width\n"); - retval = -EINVAL; - goto err_dwidth; - } - - /* Setup address space */ - temp_ctl &= ~TSI148_LCSR_OTAT_AMODE_M; - switch (aspace) { - case VME_A16: - temp_ctl |= TSI148_LCSR_OTAT_AMODE_A16; - break; - case VME_A24: - temp_ctl |= TSI148_LCSR_OTAT_AMODE_A24; - break; - case VME_A32: - temp_ctl |= TSI148_LCSR_OTAT_AMODE_A32; - break; - case VME_A64: - temp_ctl |= TSI148_LCSR_OTAT_AMODE_A64; - break; - case VME_CRCSR: - temp_ctl |= TSI148_LCSR_OTAT_AMODE_CRCSR; - break; - case VME_USER1: - temp_ctl |= TSI148_LCSR_OTAT_AMODE_USER1; - break; - case VME_USER2: - temp_ctl |= TSI148_LCSR_OTAT_AMODE_USER2; - break; - case VME_USER3: - temp_ctl |= TSI148_LCSR_OTAT_AMODE_USER3; - break; - case VME_USER4: - temp_ctl |= TSI148_LCSR_OTAT_AMODE_USER4; - break; - default: - spin_unlock(&(image->lock)); - dev_err(tsi148_bridge->parent, "Invalid address space\n"); - retval = -EINVAL; - goto err_aspace; - break; - } - - temp_ctl &= ~(3<<4); - if (cycle & VME_SUPER) - temp_ctl |= TSI148_LCSR_OTAT_SUP; - if (cycle & VME_PROG) - temp_ctl |= TSI148_LCSR_OTAT_PGM; - - /* Setup mapping */ - iowrite32be(pci_base_high, bridge->base + TSI148_LCSR_OT[i] + - TSI148_LCSR_OFFSET_OTSAU); - iowrite32be(pci_base_low, bridge->base + TSI148_LCSR_OT[i] + - TSI148_LCSR_OFFSET_OTSAL); - iowrite32be(pci_bound_high, bridge->base + TSI148_LCSR_OT[i] + - TSI148_LCSR_OFFSET_OTEAU); - iowrite32be(pci_bound_low, bridge->base + TSI148_LCSR_OT[i] + - TSI148_LCSR_OFFSET_OTEAL); - iowrite32be(vme_offset_high, bridge->base + TSI148_LCSR_OT[i] + - TSI148_LCSR_OFFSET_OTOFU); - iowrite32be(vme_offset_low, bridge->base + TSI148_LCSR_OT[i] + - TSI148_LCSR_OFFSET_OTOFL); - - /* Write ctl reg without enable */ - iowrite32be(temp_ctl, bridge->base + TSI148_LCSR_OT[i] + - TSI148_LCSR_OFFSET_OTAT); - - if (enabled) - temp_ctl |= TSI148_LCSR_OTAT_EN; - - iowrite32be(temp_ctl, bridge->base + TSI148_LCSR_OT[i] + - TSI148_LCSR_OFFSET_OTAT); - - spin_unlock(&(image->lock)); - return 0; - -err_aspace: -err_dwidth: -err_gran: - tsi148_free_resource(image); -err_res: -err_window: - return retval; - -} - -/* - * Set the attributes of an outbound window. - * - * XXX Not parsing prefetch information. - */ -int __tsi148_master_get(struct vme_master_resource *image, int *enabled, - unsigned long long *vme_base, unsigned long long *size, - vme_address_t *aspace, vme_cycle_t *cycle, vme_width_t *dwidth) -{ - unsigned int i, ctl; - unsigned int pci_base_low, pci_base_high; - unsigned int pci_bound_low, pci_bound_high; - unsigned int vme_offset_low, vme_offset_high; - - unsigned long long pci_base, pci_bound, vme_offset; - struct tsi148_driver *bridge; - - bridge = image->parent->driver_priv; - - i = image->number; - - ctl = ioread32be(bridge->base + TSI148_LCSR_OT[i] + - TSI148_LCSR_OFFSET_OTAT); - - pci_base_high = ioread32be(bridge->base + TSI148_LCSR_OT[i] + - TSI148_LCSR_OFFSET_OTSAU); - pci_base_low = ioread32be(bridge->base + TSI148_LCSR_OT[i] + - TSI148_LCSR_OFFSET_OTSAL); - pci_bound_high = ioread32be(bridge->base + TSI148_LCSR_OT[i] + - TSI148_LCSR_OFFSET_OTEAU); - pci_bound_low = ioread32be(bridge->base + TSI148_LCSR_OT[i] + - TSI148_LCSR_OFFSET_OTEAL); - vme_offset_high = ioread32be(bridge->base + TSI148_LCSR_OT[i] + - TSI148_LCSR_OFFSET_OTOFU); - vme_offset_low = ioread32be(bridge->base + TSI148_LCSR_OT[i] + - TSI148_LCSR_OFFSET_OTOFL); - - /* Convert 64-bit variables to 2x 32-bit variables */ - reg_join(pci_base_high, pci_base_low, &pci_base); - reg_join(pci_bound_high, pci_bound_low, &pci_bound); - reg_join(vme_offset_high, vme_offset_low, &vme_offset); - - *vme_base = pci_base + vme_offset; - *size = (unsigned long long)(pci_bound - pci_base) + 0x10000; - - *enabled = 0; - *aspace = 0; - *cycle = 0; - *dwidth = 0; - - if (ctl & TSI148_LCSR_OTAT_EN) - *enabled = 1; - - /* Setup address space */ - if ((ctl & TSI148_LCSR_OTAT_AMODE_M) == TSI148_LCSR_OTAT_AMODE_A16) - *aspace |= VME_A16; - if ((ctl & TSI148_LCSR_OTAT_AMODE_M) == TSI148_LCSR_OTAT_AMODE_A24) - *aspace |= VME_A24; - if ((ctl & TSI148_LCSR_OTAT_AMODE_M) == TSI148_LCSR_OTAT_AMODE_A32) - *aspace |= VME_A32; - if ((ctl & TSI148_LCSR_OTAT_AMODE_M) == TSI148_LCSR_OTAT_AMODE_A64) - *aspace |= VME_A64; - if ((ctl & TSI148_LCSR_OTAT_AMODE_M) == TSI148_LCSR_OTAT_AMODE_CRCSR) - *aspace |= VME_CRCSR; - if ((ctl & TSI148_LCSR_OTAT_AMODE_M) == TSI148_LCSR_OTAT_AMODE_USER1) - *aspace |= VME_USER1; - if ((ctl & TSI148_LCSR_OTAT_AMODE_M) == TSI148_LCSR_OTAT_AMODE_USER2) - *aspace |= VME_USER2; - if ((ctl & TSI148_LCSR_OTAT_AMODE_M) == TSI148_LCSR_OTAT_AMODE_USER3) - *aspace |= VME_USER3; - if ((ctl & TSI148_LCSR_OTAT_AMODE_M) == TSI148_LCSR_OTAT_AMODE_USER4) - *aspace |= VME_USER4; - - /* Setup 2eSST speeds */ - if ((ctl & TSI148_LCSR_OTAT_2eSSTM_M) == TSI148_LCSR_OTAT_2eSSTM_160) - *cycle |= VME_2eSST160; - if ((ctl & TSI148_LCSR_OTAT_2eSSTM_M) == TSI148_LCSR_OTAT_2eSSTM_267) - *cycle |= VME_2eSST267; - if ((ctl & TSI148_LCSR_OTAT_2eSSTM_M) == TSI148_LCSR_OTAT_2eSSTM_320) - *cycle |= VME_2eSST320; - - /* Setup cycle types */ - if ((ctl & TSI148_LCSR_OTAT_TM_M) == TSI148_LCSR_OTAT_TM_SCT) - *cycle |= VME_SCT; - if ((ctl & TSI148_LCSR_OTAT_TM_M) == TSI148_LCSR_OTAT_TM_BLT) - *cycle |= VME_BLT; - if ((ctl & TSI148_LCSR_OTAT_TM_M) == TSI148_LCSR_OTAT_TM_MBLT) - *cycle |= VME_MBLT; - if ((ctl & TSI148_LCSR_OTAT_TM_M) == TSI148_LCSR_OTAT_TM_2eVME) - *cycle |= VME_2eVME; - if ((ctl & TSI148_LCSR_OTAT_TM_M) == TSI148_LCSR_OTAT_TM_2eSST) - *cycle |= VME_2eSST; - if ((ctl & TSI148_LCSR_OTAT_TM_M) == TSI148_LCSR_OTAT_TM_2eSSTB) - *cycle |= VME_2eSSTB; - - if (ctl & TSI148_LCSR_OTAT_SUP) - *cycle |= VME_SUPER; - else - *cycle |= VME_USER; - - if (ctl & TSI148_LCSR_OTAT_PGM) - *cycle |= VME_PROG; - else - *cycle |= VME_DATA; - - /* Setup data width */ - if ((ctl & TSI148_LCSR_OTAT_DBW_M) == TSI148_LCSR_OTAT_DBW_16) - *dwidth = VME_D16; - if ((ctl & TSI148_LCSR_OTAT_DBW_M) == TSI148_LCSR_OTAT_DBW_32) - *dwidth = VME_D32; - - return 0; -} - - -int tsi148_master_get(struct vme_master_resource *image, int *enabled, - unsigned long long *vme_base, unsigned long long *size, - vme_address_t *aspace, vme_cycle_t *cycle, vme_width_t *dwidth) -{ - int retval; - - spin_lock(&(image->lock)); - - retval = __tsi148_master_get(image, enabled, vme_base, size, aspace, - cycle, dwidth); - - spin_unlock(&(image->lock)); - - return retval; -} - -ssize_t tsi148_master_read(struct vme_master_resource *image, void *buf, - size_t count, loff_t offset) -{ - int retval, enabled; - unsigned long long vme_base, size; - vme_address_t aspace; - vme_cycle_t cycle; - vme_width_t dwidth; - struct vme_bus_error *vme_err = NULL; - struct vme_bridge *tsi148_bridge; - - tsi148_bridge = image->parent; - - spin_lock(&(image->lock)); - - memcpy_fromio(buf, image->kern_base + offset, (unsigned int)count); - retval = count; - - if (!err_chk) - goto skip_chk; - - __tsi148_master_get(image, &enabled, &vme_base, &size, &aspace, &cycle, - &dwidth); - - vme_err = tsi148_find_error(tsi148_bridge, aspace, vme_base + offset, - count); - if (vme_err != NULL) { - dev_err(image->parent->parent, "First VME read error detected " - "an at address 0x%llx\n", vme_err->address); - retval = vme_err->address - (vme_base + offset); - /* Clear down save errors in this address range */ - tsi148_clear_errors(tsi148_bridge, aspace, vme_base + offset, - count); - } - -skip_chk: - spin_unlock(&(image->lock)); - - return retval; -} - - -ssize_t tsi148_master_write(struct vme_master_resource *image, void *buf, - size_t count, loff_t offset) -{ - int retval = 0, enabled; - unsigned long long vme_base, size; - vme_address_t aspace; - vme_cycle_t cycle; - vme_width_t dwidth; - - struct vme_bus_error *vme_err = NULL; - struct vme_bridge *tsi148_bridge; - struct tsi148_driver *bridge; - - tsi148_bridge = image->parent; - - bridge = tsi148_bridge->driver_priv; - - spin_lock(&(image->lock)); - - memcpy_toio(image->kern_base + offset, buf, (unsigned int)count); - retval = count; - - /* - * Writes are posted. We need to do a read on the VME bus to flush out - * all of the writes before we check for errors. We can't guarentee - * that reading the data we have just written is safe. It is believed - * that there isn't any read, write re-ordering, so we can read any - * location in VME space, so lets read the Device ID from the tsi148's - * own registers as mapped into CR/CSR space. - * - * We check for saved errors in the written address range/space. - */ - - if (!err_chk) - goto skip_chk; - - /* - * Get window info first, to maximise the time that the buffers may - * fluch on their own - */ - __tsi148_master_get(image, &enabled, &vme_base, &size, &aspace, &cycle, - &dwidth); - - ioread16(bridge->flush_image->kern_base + 0x7F000); - - vme_err = tsi148_find_error(tsi148_bridge, aspace, vme_base + offset, - count); - if (vme_err != NULL) { - dev_warn(tsi148_bridge->parent, "First VME write error detected" - " an at address 0x%llx\n", vme_err->address); - retval = vme_err->address - (vme_base + offset); - /* Clear down save errors in this address range */ - tsi148_clear_errors(tsi148_bridge, aspace, vme_base + offset, - count); - } - -skip_chk: - spin_unlock(&(image->lock)); - - return retval; -} - -/* - * Perform an RMW cycle on the VME bus. - * - * Requires a previously configured master window, returns final value. - */ -unsigned int tsi148_master_rmw(struct vme_master_resource *image, - unsigned int mask, unsigned int compare, unsigned int swap, - loff_t offset) -{ - unsigned long long pci_addr; - unsigned int pci_addr_high, pci_addr_low; - u32 tmp, result; - int i; - struct tsi148_driver *bridge; - - bridge = image->parent->driver_priv; - - /* Find the PCI address that maps to the desired VME address */ - i = image->number; - - /* Locking as we can only do one of these at a time */ - mutex_lock(&(bridge->vme_rmw)); - - /* Lock image */ - spin_lock(&(image->lock)); - - pci_addr_high = ioread32be(bridge->base + TSI148_LCSR_OT[i] + - TSI148_LCSR_OFFSET_OTSAU); - pci_addr_low = ioread32be(bridge->base + TSI148_LCSR_OT[i] + - TSI148_LCSR_OFFSET_OTSAL); - - reg_join(pci_addr_high, pci_addr_low, &pci_addr); - reg_split(pci_addr + offset, &pci_addr_high, &pci_addr_low); - - /* Configure registers */ - iowrite32be(mask, bridge->base + TSI148_LCSR_RMWEN); - iowrite32be(compare, bridge->base + TSI148_LCSR_RMWC); - iowrite32be(swap, bridge->base + TSI148_LCSR_RMWS); - iowrite32be(pci_addr_high, bridge->base + TSI148_LCSR_RMWAU); - iowrite32be(pci_addr_low, bridge->base + TSI148_LCSR_RMWAL); - - /* Enable RMW */ - tmp = ioread32be(bridge->base + TSI148_LCSR_VMCTRL); - tmp |= TSI148_LCSR_VMCTRL_RMWEN; - iowrite32be(tmp, bridge->base + TSI148_LCSR_VMCTRL); - - /* Kick process off with a read to the required address. */ - result = ioread32be(image->kern_base + offset); - - /* Disable RMW */ - tmp = ioread32be(bridge->base + TSI148_LCSR_VMCTRL); - tmp &= ~TSI148_LCSR_VMCTRL_RMWEN; - iowrite32be(tmp, bridge->base + TSI148_LCSR_VMCTRL); - - spin_unlock(&(image->lock)); - - mutex_unlock(&(bridge->vme_rmw)); - - return result; -} - -static int tsi148_dma_set_vme_src_attributes(struct device *dev, u32 *attr, - vme_address_t aspace, vme_cycle_t cycle, vme_width_t dwidth) -{ - /* Setup 2eSST speeds */ - switch (cycle & (VME_2eSST160 | VME_2eSST267 | VME_2eSST320)) { - case VME_2eSST160: - *attr |= TSI148_LCSR_DSAT_2eSSTM_160; - break; - case VME_2eSST267: - *attr |= TSI148_LCSR_DSAT_2eSSTM_267; - break; - case VME_2eSST320: - *attr |= TSI148_LCSR_DSAT_2eSSTM_320; - break; - } - - /* Setup cycle types */ - if (cycle & VME_SCT) - *attr |= TSI148_LCSR_DSAT_TM_SCT; - - if (cycle & VME_BLT) - *attr |= TSI148_LCSR_DSAT_TM_BLT; - - if (cycle & VME_MBLT) - *attr |= TSI148_LCSR_DSAT_TM_MBLT; - - if (cycle & VME_2eVME) - *attr |= TSI148_LCSR_DSAT_TM_2eVME; - - if (cycle & VME_2eSST) - *attr |= TSI148_LCSR_DSAT_TM_2eSST; - - if (cycle & VME_2eSSTB) { - dev_err(dev, "Currently not setting Broadcast Select " - "Registers\n"); - *attr |= TSI148_LCSR_DSAT_TM_2eSSTB; - } - - /* Setup data width */ - switch (dwidth) { - case VME_D16: - *attr |= TSI148_LCSR_DSAT_DBW_16; - break; - case VME_D32: - *attr |= TSI148_LCSR_DSAT_DBW_32; - break; - default: - dev_err(dev, "Invalid data width\n"); - return -EINVAL; - } - - /* Setup address space */ - switch (aspace) { - case VME_A16: - *attr |= TSI148_LCSR_DSAT_AMODE_A16; - break; - case VME_A24: - *attr |= TSI148_LCSR_DSAT_AMODE_A24; - break; - case VME_A32: - *attr |= TSI148_LCSR_DSAT_AMODE_A32; - break; - case VME_A64: - *attr |= TSI148_LCSR_DSAT_AMODE_A64; - break; - case VME_CRCSR: - *attr |= TSI148_LCSR_DSAT_AMODE_CRCSR; - break; - case VME_USER1: - *attr |= TSI148_LCSR_DSAT_AMODE_USER1; - break; - case VME_USER2: - *attr |= TSI148_LCSR_DSAT_AMODE_USER2; - break; - case VME_USER3: - *attr |= TSI148_LCSR_DSAT_AMODE_USER3; - break; - case VME_USER4: - *attr |= TSI148_LCSR_DSAT_AMODE_USER4; - break; - default: - dev_err(dev, "Invalid address space\n"); - return -EINVAL; - break; - } - - if (cycle & VME_SUPER) - *attr |= TSI148_LCSR_DSAT_SUP; - if (cycle & VME_PROG) - *attr |= TSI148_LCSR_DSAT_PGM; - - return 0; -} - -static int tsi148_dma_set_vme_dest_attributes(struct device *dev, u32 *attr, - vme_address_t aspace, vme_cycle_t cycle, vme_width_t dwidth) -{ - /* Setup 2eSST speeds */ - switch (cycle & (VME_2eSST160 | VME_2eSST267 | VME_2eSST320)) { - case VME_2eSST160: - *attr |= TSI148_LCSR_DDAT_2eSSTM_160; - break; - case VME_2eSST267: - *attr |= TSI148_LCSR_DDAT_2eSSTM_267; - break; - case VME_2eSST320: - *attr |= TSI148_LCSR_DDAT_2eSSTM_320; - break; - } - - /* Setup cycle types */ - if (cycle & VME_SCT) - *attr |= TSI148_LCSR_DDAT_TM_SCT; - - if (cycle & VME_BLT) - *attr |= TSI148_LCSR_DDAT_TM_BLT; - - if (cycle & VME_MBLT) - *attr |= TSI148_LCSR_DDAT_TM_MBLT; - - if (cycle & VME_2eVME) - *attr |= TSI148_LCSR_DDAT_TM_2eVME; - - if (cycle & VME_2eSST) - *attr |= TSI148_LCSR_DDAT_TM_2eSST; - - if (cycle & VME_2eSSTB) { - dev_err(dev, "Currently not setting Broadcast Select " - "Registers\n"); - *attr |= TSI148_LCSR_DDAT_TM_2eSSTB; - } - - /* Setup data width */ - switch (dwidth) { - case VME_D16: - *attr |= TSI148_LCSR_DDAT_DBW_16; - break; - case VME_D32: - *attr |= TSI148_LCSR_DDAT_DBW_32; - break; - default: - dev_err(dev, "Invalid data width\n"); - return -EINVAL; - } - - /* Setup address space */ - switch (aspace) { - case VME_A16: - *attr |= TSI148_LCSR_DDAT_AMODE_A16; - break; - case VME_A24: - *attr |= TSI148_LCSR_DDAT_AMODE_A24; - break; - case VME_A32: - *attr |= TSI148_LCSR_DDAT_AMODE_A32; - break; - case VME_A64: - *attr |= TSI148_LCSR_DDAT_AMODE_A64; - break; - case VME_CRCSR: - *attr |= TSI148_LCSR_DDAT_AMODE_CRCSR; - break; - case VME_USER1: - *attr |= TSI148_LCSR_DDAT_AMODE_USER1; - break; - case VME_USER2: - *attr |= TSI148_LCSR_DDAT_AMODE_USER2; - break; - case VME_USER3: - *attr |= TSI148_LCSR_DDAT_AMODE_USER3; - break; - case VME_USER4: - *attr |= TSI148_LCSR_DDAT_AMODE_USER4; - break; - default: - dev_err(dev, "Invalid address space\n"); - return -EINVAL; - break; - } - - if (cycle & VME_SUPER) - *attr |= TSI148_LCSR_DDAT_SUP; - if (cycle & VME_PROG) - *attr |= TSI148_LCSR_DDAT_PGM; - - return 0; -} - -/* - * Add a link list descriptor to the list - */ -int tsi148_dma_list_add(struct vme_dma_list *list, struct vme_dma_attr *src, - struct vme_dma_attr *dest, size_t count) -{ - struct tsi148_dma_entry *entry, *prev; - u32 address_high, address_low; - struct vme_dma_pattern *pattern_attr; - struct vme_dma_pci *pci_attr; - struct vme_dma_vme *vme_attr; - dma_addr_t desc_ptr; - int retval = 0; - struct vme_bridge *tsi148_bridge; - - tsi148_bridge = list->parent->parent; - - /* Descriptor must be aligned on 64-bit boundaries */ - entry = kmalloc(sizeof(struct tsi148_dma_entry), GFP_KERNEL); - if (entry == NULL) { - dev_err(tsi148_bridge->parent, "Failed to allocate memory for " - "dma resource structure\n"); - retval = -ENOMEM; - goto err_mem; - } - - /* Test descriptor alignment */ - if ((unsigned long)&(entry->descriptor) & 0x7) { - dev_err(tsi148_bridge->parent, "Descriptor not aligned to 8 " - "byte boundary as required: %p\n", - &(entry->descriptor)); - retval = -EINVAL; - goto err_align; - } - - /* Given we are going to fill out the structure, we probably don't - * need to zero it, but better safe than sorry for now. - */ - memset(&(entry->descriptor), 0, sizeof(struct tsi148_dma_descriptor)); - - /* Fill out source part */ - switch (src->type) { - case VME_DMA_PATTERN: - pattern_attr = src->private; - - entry->descriptor.dsal = pattern_attr->pattern; - entry->descriptor.dsat = TSI148_LCSR_DSAT_TYP_PAT; - /* Default behaviour is 32 bit pattern */ - if (pattern_attr->type & VME_DMA_PATTERN_BYTE) - entry->descriptor.dsat |= TSI148_LCSR_DSAT_PSZ; - - /* It seems that the default behaviour is to increment */ - if ((pattern_attr->type & VME_DMA_PATTERN_INCREMENT) == 0) - entry->descriptor.dsat |= TSI148_LCSR_DSAT_NIN; - - break; - case VME_DMA_PCI: - pci_attr = src->private; - - reg_split((unsigned long long)pci_attr->address, &address_high, - &address_low); - entry->descriptor.dsau = address_high; - entry->descriptor.dsal = address_low; - entry->descriptor.dsat = TSI148_LCSR_DSAT_TYP_PCI; - break; - case VME_DMA_VME: - vme_attr = src->private; - - reg_split((unsigned long long)vme_attr->address, &address_high, - &address_low); - entry->descriptor.dsau = address_high; - entry->descriptor.dsal = address_low; - entry->descriptor.dsat = TSI148_LCSR_DSAT_TYP_VME; - - retval = tsi148_dma_set_vme_src_attributes( - tsi148_bridge->parent, &(entry->descriptor.dsat), - vme_attr->aspace, vme_attr->cycle, vme_attr->dwidth); - if (retval < 0) - goto err_source; - break; - default: - dev_err(tsi148_bridge->parent, "Invalid source type\n"); - retval = -EINVAL; - goto err_source; - break; - } - - /* Assume last link - this will be over-written by adding another */ - entry->descriptor.dnlau = 0; - entry->descriptor.dnlal = TSI148_LCSR_DNLAL_LLA; - - - /* Fill out destination part */ - switch (dest->type) { - case VME_DMA_PCI: - pci_attr = dest->private; - - reg_split((unsigned long long)pci_attr->address, &address_high, - &address_low); - entry->descriptor.ddau = address_high; - entry->descriptor.ddal = address_low; - entry->descriptor.ddat = TSI148_LCSR_DDAT_TYP_PCI; - break; - case VME_DMA_VME: - vme_attr = dest->private; - - reg_split((unsigned long long)vme_attr->address, &address_high, - &address_low); - entry->descriptor.ddau = address_high; - entry->descriptor.ddal = address_low; - entry->descriptor.ddat = TSI148_LCSR_DDAT_TYP_VME; - - retval = tsi148_dma_set_vme_dest_attributes( - tsi148_bridge->parent, &(entry->descriptor.ddat), - vme_attr->aspace, vme_attr->cycle, vme_attr->dwidth); - if (retval < 0) - goto err_dest; - break; - default: - dev_err(tsi148_bridge->parent, "Invalid destination type\n"); - retval = -EINVAL; - goto err_dest; - break; - } - - /* Fill out count */ - entry->descriptor.dcnt = (u32)count; - - /* Add to list */ - list_add_tail(&(entry->list), &(list->entries)); - - /* Fill out previous descriptors "Next Address" */ - if (entry->list.prev != &(list->entries)) { - prev = list_entry(entry->list.prev, struct tsi148_dma_entry, - list); - /* We need the bus address for the pointer */ - desc_ptr = virt_to_bus(&(entry->descriptor)); - reg_split(desc_ptr, &(prev->descriptor.dnlau), - &(prev->descriptor.dnlal)); - } - - return 0; - -err_dest: -err_source: -err_align: - kfree(entry); -err_mem: - return retval; -} - -/* - * Check to see if the provided DMA channel is busy. - */ -static int tsi148_dma_busy(struct vme_bridge *tsi148_bridge, int channel) -{ - u32 tmp; - struct tsi148_driver *bridge; - - bridge = tsi148_bridge->driver_priv; - - tmp = ioread32be(bridge->base + TSI148_LCSR_DMA[channel] + - TSI148_LCSR_OFFSET_DSTA); - - if (tmp & TSI148_LCSR_DSTA_BSY) - return 0; - else - return 1; - -} - -/* - * Execute a previously generated link list - * - * XXX Need to provide control register configuration. - */ -int tsi148_dma_list_exec(struct vme_dma_list *list) -{ - struct vme_dma_resource *ctrlr; - int channel, retval = 0; - struct tsi148_dma_entry *entry; - dma_addr_t bus_addr; - u32 bus_addr_high, bus_addr_low; - u32 val, dctlreg = 0; - struct vme_bridge *tsi148_bridge; - struct tsi148_driver *bridge; - - ctrlr = list->parent; - - tsi148_bridge = ctrlr->parent; - - bridge = tsi148_bridge->driver_priv; - - mutex_lock(&(ctrlr->mtx)); - - channel = ctrlr->number; - - if (!list_empty(&(ctrlr->running))) { - /* - * XXX We have an active DMA transfer and currently haven't - * sorted out the mechanism for "pending" DMA transfers. - * Return busy. - */ - /* Need to add to pending here */ - mutex_unlock(&(ctrlr->mtx)); - return -EBUSY; - } else { - list_add(&(list->list), &(ctrlr->running)); - } - - /* Get first bus address and write into registers */ - entry = list_first_entry(&(list->entries), struct tsi148_dma_entry, - list); - - bus_addr = virt_to_bus(&(entry->descriptor)); - - mutex_unlock(&(ctrlr->mtx)); - - reg_split(bus_addr, &bus_addr_high, &bus_addr_low); - - iowrite32be(bus_addr_high, bridge->base + - TSI148_LCSR_DMA[channel] + TSI148_LCSR_OFFSET_DNLAU); - iowrite32be(bus_addr_low, bridge->base + - TSI148_LCSR_DMA[channel] + TSI148_LCSR_OFFSET_DNLAL); - - /* Start the operation */ - iowrite32be(dctlreg | TSI148_LCSR_DCTL_DGO, bridge->base + - TSI148_LCSR_DMA[channel] + TSI148_LCSR_OFFSET_DCTL); - - wait_event_interruptible(bridge->dma_queue[channel], - tsi148_dma_busy(ctrlr->parent, channel)); - /* - * Read status register, this register is valid until we kick off a - * new transfer. - */ - val = ioread32be(bridge->base + TSI148_LCSR_DMA[channel] + - TSI148_LCSR_OFFSET_DSTA); - - if (val & TSI148_LCSR_DSTA_VBE) { - dev_err(tsi148_bridge->parent, "DMA Error. DSTA=%08X\n", val); - retval = -EIO; - } - - /* Remove list from running list */ - mutex_lock(&(ctrlr->mtx)); - list_del(&(list->list)); - mutex_unlock(&(ctrlr->mtx)); - - return retval; -} - -/* - * Clean up a previously generated link list - * - * We have a separate function, don't assume that the chain can't be reused. - */ -int tsi148_dma_list_empty(struct vme_dma_list *list) -{ - struct list_head *pos, *temp; - struct tsi148_dma_entry *entry; - - /* detach and free each entry */ - list_for_each_safe(pos, temp, &(list->entries)) { - list_del(pos); - entry = list_entry(pos, struct tsi148_dma_entry, list); - kfree(entry); - } - - return 0; -} - -/* - * All 4 location monitors reside at the same base - this is therefore a - * system wide configuration. - * - * This does not enable the LM monitor - that should be done when the first - * callback is attached and disabled when the last callback is removed. - */ -int tsi148_lm_set(struct vme_lm_resource *lm, unsigned long long lm_base, - vme_address_t aspace, vme_cycle_t cycle) -{ - u32 lm_base_high, lm_base_low, lm_ctl = 0; - int i; - struct vme_bridge *tsi148_bridge; - struct tsi148_driver *bridge; - - tsi148_bridge = lm->parent; - - bridge = tsi148_bridge->driver_priv; - - mutex_lock(&(lm->mtx)); - - /* If we already have a callback attached, we can't move it! */ - for (i = 0; i < lm->monitors; i++) { - if (bridge->lm_callback[i] != NULL) { - mutex_unlock(&(lm->mtx)); - dev_err(tsi148_bridge->parent, "Location monitor " - "callback attached, can't reset\n"); - return -EBUSY; - } - } - - switch (aspace) { - case VME_A16: - lm_ctl |= TSI148_LCSR_LMAT_AS_A16; - break; - case VME_A24: - lm_ctl |= TSI148_LCSR_LMAT_AS_A24; - break; - case VME_A32: - lm_ctl |= TSI148_LCSR_LMAT_AS_A32; - break; - case VME_A64: - lm_ctl |= TSI148_LCSR_LMAT_AS_A64; - break; - default: - mutex_unlock(&(lm->mtx)); - dev_err(tsi148_bridge->parent, "Invalid address space\n"); - return -EINVAL; - break; - } - - if (cycle & VME_SUPER) - lm_ctl |= TSI148_LCSR_LMAT_SUPR ; - if (cycle & VME_USER) - lm_ctl |= TSI148_LCSR_LMAT_NPRIV; - if (cycle & VME_PROG) - lm_ctl |= TSI148_LCSR_LMAT_PGM; - if (cycle & VME_DATA) - lm_ctl |= TSI148_LCSR_LMAT_DATA; - - reg_split(lm_base, &lm_base_high, &lm_base_low); - - iowrite32be(lm_base_high, bridge->base + TSI148_LCSR_LMBAU); - iowrite32be(lm_base_low, bridge->base + TSI148_LCSR_LMBAL); - iowrite32be(lm_ctl, bridge->base + TSI148_LCSR_LMAT); - - mutex_unlock(&(lm->mtx)); - - return 0; -} - -/* Get configuration of the callback monitor and return whether it is enabled - * or disabled. - */ -int tsi148_lm_get(struct vme_lm_resource *lm, unsigned long long *lm_base, - vme_address_t *aspace, vme_cycle_t *cycle) -{ - u32 lm_base_high, lm_base_low, lm_ctl, enabled = 0; - struct tsi148_driver *bridge; - - bridge = lm->parent->driver_priv; - - mutex_lock(&(lm->mtx)); - - lm_base_high = ioread32be(bridge->base + TSI148_LCSR_LMBAU); - lm_base_low = ioread32be(bridge->base + TSI148_LCSR_LMBAL); - lm_ctl = ioread32be(bridge->base + TSI148_LCSR_LMAT); - - reg_join(lm_base_high, lm_base_low, lm_base); - - if (lm_ctl & TSI148_LCSR_LMAT_EN) - enabled = 1; - - if ((lm_ctl & TSI148_LCSR_LMAT_AS_M) == TSI148_LCSR_LMAT_AS_A16) - *aspace |= VME_A16; - - if ((lm_ctl & TSI148_LCSR_LMAT_AS_M) == TSI148_LCSR_LMAT_AS_A24) - *aspace |= VME_A24; - - if ((lm_ctl & TSI148_LCSR_LMAT_AS_M) == TSI148_LCSR_LMAT_AS_A32) - *aspace |= VME_A32; - - if ((lm_ctl & TSI148_LCSR_LMAT_AS_M) == TSI148_LCSR_LMAT_AS_A64) - *aspace |= VME_A64; - - - if (lm_ctl & TSI148_LCSR_LMAT_SUPR) - *cycle |= VME_SUPER; - if (lm_ctl & TSI148_LCSR_LMAT_NPRIV) - *cycle |= VME_USER; - if (lm_ctl & TSI148_LCSR_LMAT_PGM) - *cycle |= VME_PROG; - if (lm_ctl & TSI148_LCSR_LMAT_DATA) - *cycle |= VME_DATA; - - mutex_unlock(&(lm->mtx)); - - return enabled; -} - -/* - * Attach a callback to a specific location monitor. - * - * Callback will be passed the monitor triggered. - */ -int tsi148_lm_attach(struct vme_lm_resource *lm, int monitor, - void (*callback)(int)) -{ - u32 lm_ctl, tmp; - struct vme_bridge *tsi148_bridge; - struct tsi148_driver *bridge; - - tsi148_bridge = lm->parent; - - bridge = tsi148_bridge->driver_priv; - - mutex_lock(&(lm->mtx)); - - /* Ensure that the location monitor is configured - need PGM or DATA */ - lm_ctl = ioread32be(bridge->base + TSI148_LCSR_LMAT); - if ((lm_ctl & (TSI148_LCSR_LMAT_PGM | TSI148_LCSR_LMAT_DATA)) == 0) { - mutex_unlock(&(lm->mtx)); - dev_err(tsi148_bridge->parent, "Location monitor not properly " - "configured\n"); - return -EINVAL; - } - - /* Check that a callback isn't already attached */ - if (bridge->lm_callback[monitor] != NULL) { - mutex_unlock(&(lm->mtx)); - dev_err(tsi148_bridge->parent, "Existing callback attached\n"); - return -EBUSY; - } - - /* Attach callback */ - bridge->lm_callback[monitor] = callback; - - /* Enable Location Monitor interrupt */ - tmp = ioread32be(bridge->base + TSI148_LCSR_INTEN); - tmp |= TSI148_LCSR_INTEN_LMEN[monitor]; - iowrite32be(tmp, bridge->base + TSI148_LCSR_INTEN); - - tmp = ioread32be(bridge->base + TSI148_LCSR_INTEO); - tmp |= TSI148_LCSR_INTEO_LMEO[monitor]; - iowrite32be(tmp, bridge->base + TSI148_LCSR_INTEO); - - /* Ensure that global Location Monitor Enable set */ - if ((lm_ctl & TSI148_LCSR_LMAT_EN) == 0) { - lm_ctl |= TSI148_LCSR_LMAT_EN; - iowrite32be(lm_ctl, bridge->base + TSI148_LCSR_LMAT); - } - - mutex_unlock(&(lm->mtx)); - - return 0; -} - -/* - * Detach a callback function forn a specific location monitor. - */ -int tsi148_lm_detach(struct vme_lm_resource *lm, int monitor) -{ - u32 lm_en, tmp; - struct tsi148_driver *bridge; - - bridge = lm->parent->driver_priv; - - mutex_lock(&(lm->mtx)); - - /* Disable Location Monitor and ensure previous interrupts are clear */ - lm_en = ioread32be(bridge->base + TSI148_LCSR_INTEN); - lm_en &= ~TSI148_LCSR_INTEN_LMEN[monitor]; - iowrite32be(lm_en, bridge->base + TSI148_LCSR_INTEN); - - tmp = ioread32be(bridge->base + TSI148_LCSR_INTEO); - tmp &= ~TSI148_LCSR_INTEO_LMEO[monitor]; - iowrite32be(tmp, bridge->base + TSI148_LCSR_INTEO); - - iowrite32be(TSI148_LCSR_INTC_LMC[monitor], - bridge->base + TSI148_LCSR_INTC); - - /* Detach callback */ - bridge->lm_callback[monitor] = NULL; - - /* If all location monitors disabled, disable global Location Monitor */ - if ((lm_en & (TSI148_LCSR_INTS_LM0S | TSI148_LCSR_INTS_LM1S | - TSI148_LCSR_INTS_LM2S | TSI148_LCSR_INTS_LM3S)) == 0) { - tmp = ioread32be(bridge->base + TSI148_LCSR_LMAT); - tmp &= ~TSI148_LCSR_LMAT_EN; - iowrite32be(tmp, bridge->base + TSI148_LCSR_LMAT); - } - - mutex_unlock(&(lm->mtx)); - - return 0; -} - -/* - * Determine Geographical Addressing - */ -int tsi148_slot_get(struct vme_bridge *tsi148_bridge) -{ - u32 slot = 0; - struct tsi148_driver *bridge; - - bridge = tsi148_bridge->driver_priv; - - if (!geoid) { - slot = ioread32be(bridge->base + TSI148_LCSR_VSTAT); - slot = slot & TSI148_LCSR_VSTAT_GA_M; - } else - slot = geoid; - - return (int)slot; -} - -static int __init tsi148_init(void) -{ - return pci_register_driver(&tsi148_driver); -} - -/* - * Configure CR/CSR space - * - * Access to the CR/CSR can be configured at power-up. The location of the - * CR/CSR registers in the CR/CSR address space is determined by the boards - * Auto-ID or Geographic address. This function ensures that the window is - * enabled at an offset consistent with the boards geopgraphic address. - * - * Each board has a 512kB window, with the highest 4kB being used for the - * boards registers, this means there is a fix length 508kB window which must - * be mapped onto PCI memory. - */ -static int tsi148_crcsr_init(struct vme_bridge *tsi148_bridge, - struct pci_dev *pdev) -{ - u32 cbar, crat, vstat; - u32 crcsr_bus_high, crcsr_bus_low; - int retval; - struct tsi148_driver *bridge; - - bridge = tsi148_bridge->driver_priv; - - /* Allocate mem for CR/CSR image */ - bridge->crcsr_kernel = pci_alloc_consistent(pdev, VME_CRCSR_BUF_SIZE, - &(bridge->crcsr_bus)); - if (bridge->crcsr_kernel == NULL) { - dev_err(tsi148_bridge->parent, "Failed to allocate memory for " - "CR/CSR image\n"); - return -ENOMEM; - } - - memset(bridge->crcsr_kernel, 0, VME_CRCSR_BUF_SIZE); - - reg_split(bridge->crcsr_bus, &crcsr_bus_high, &crcsr_bus_low); - - iowrite32be(crcsr_bus_high, bridge->base + TSI148_LCSR_CROU); - iowrite32be(crcsr_bus_low, bridge->base + TSI148_LCSR_CROL); - - /* Ensure that the CR/CSR is configured at the correct offset */ - cbar = ioread32be(bridge->base + TSI148_CBAR); - cbar = (cbar & TSI148_CRCSR_CBAR_M)>>3; - - vstat = tsi148_slot_get(tsi148_bridge); - - if (cbar != vstat) { - cbar = vstat; - dev_info(tsi148_bridge->parent, "Setting CR/CSR offset\n"); - iowrite32be(cbar<<3, bridge->base + TSI148_CBAR); - } - dev_info(tsi148_bridge->parent, "CR/CSR Offset: %d\n", cbar); - - crat = ioread32be(bridge->base + TSI148_LCSR_CRAT); - if (crat & TSI148_LCSR_CRAT_EN) { - dev_info(tsi148_bridge->parent, "Enabling CR/CSR space\n"); - iowrite32be(crat | TSI148_LCSR_CRAT_EN, - bridge->base + TSI148_LCSR_CRAT); - } else - dev_info(tsi148_bridge->parent, "CR/CSR already enabled\n"); - - /* If we want flushed, error-checked writes, set up a window - * over the CR/CSR registers. We read from here to safely flush - * through VME writes. - */ - if (err_chk) { - retval = tsi148_master_set(bridge->flush_image, 1, - (vstat * 0x80000), 0x80000, VME_CRCSR, VME_SCT, - VME_D16); - if (retval) - dev_err(tsi148_bridge->parent, "Configuring flush image" - " failed\n"); - } - - return 0; - -} - -static void tsi148_crcsr_exit(struct vme_bridge *tsi148_bridge, - struct pci_dev *pdev) -{ - u32 crat; - struct tsi148_driver *bridge; - - bridge = tsi148_bridge->driver_priv; - - /* Turn off CR/CSR space */ - crat = ioread32be(bridge->base + TSI148_LCSR_CRAT); - iowrite32be(crat & ~TSI148_LCSR_CRAT_EN, - bridge->base + TSI148_LCSR_CRAT); - - /* Free image */ - iowrite32be(0, bridge->base + TSI148_LCSR_CROU); - iowrite32be(0, bridge->base + TSI148_LCSR_CROL); - - pci_free_consistent(pdev, VME_CRCSR_BUF_SIZE, bridge->crcsr_kernel, - bridge->crcsr_bus); -} - -static int tsi148_probe(struct pci_dev *pdev, const struct pci_device_id *id) -{ - int retval, i, master_num; - u32 data; - struct list_head *pos = NULL; - struct vme_bridge *tsi148_bridge; - struct tsi148_driver *tsi148_device; - struct vme_master_resource *master_image; - struct vme_slave_resource *slave_image; - struct vme_dma_resource *dma_ctrlr; - struct vme_lm_resource *lm; - - /* If we want to support more than one of each bridge, we need to - * dynamically generate this so we get one per device - */ - tsi148_bridge = kzalloc(sizeof(struct vme_bridge), GFP_KERNEL); - if (tsi148_bridge == NULL) { - dev_err(&pdev->dev, "Failed to allocate memory for device " - "structure\n"); - retval = -ENOMEM; - goto err_struct; - } - - tsi148_device = kzalloc(sizeof(struct tsi148_driver), GFP_KERNEL); - if (tsi148_device == NULL) { - dev_err(&pdev->dev, "Failed to allocate memory for device " - "structure\n"); - retval = -ENOMEM; - goto err_driver; - } - - tsi148_bridge->driver_priv = tsi148_device; - - /* Enable the device */ - retval = pci_enable_device(pdev); - if (retval) { - dev_err(&pdev->dev, "Unable to enable device\n"); - goto err_enable; - } - - /* Map Registers */ - retval = pci_request_regions(pdev, driver_name); - if (retval) { - dev_err(&pdev->dev, "Unable to reserve resources\n"); - goto err_resource; - } - - /* map registers in BAR 0 */ - tsi148_device->base = ioremap_nocache(pci_resource_start(pdev, 0), - 4096); - if (!tsi148_device->base) { - dev_err(&pdev->dev, "Unable to remap CRG region\n"); - retval = -EIO; - goto err_remap; - } - - /* Check to see if the mapping worked out */ - data = ioread32(tsi148_device->base + TSI148_PCFS_ID) & 0x0000FFFF; - if (data != PCI_VENDOR_ID_TUNDRA) { - dev_err(&pdev->dev, "CRG region check failed\n"); - retval = -EIO; - goto err_test; - } - - /* Initialize wait queues & mutual exclusion flags */ - init_waitqueue_head(&(tsi148_device->dma_queue[0])); - init_waitqueue_head(&(tsi148_device->dma_queue[1])); - init_waitqueue_head(&(tsi148_device->iack_queue)); - mutex_init(&(tsi148_device->vme_int)); - mutex_init(&(tsi148_device->vme_rmw)); - - tsi148_bridge->parent = &(pdev->dev); - strcpy(tsi148_bridge->name, driver_name); - - /* Setup IRQ */ - retval = tsi148_irq_init(tsi148_bridge); - if (retval != 0) { - dev_err(&pdev->dev, "Chip Initialization failed.\n"); - goto err_irq; - } - - /* If we are going to flush writes, we need to read from the VME bus. - * We need to do this safely, thus we read the devices own CR/CSR - * register. To do this we must set up a window in CR/CSR space and - * hence have one less master window resource available. - */ - master_num = TSI148_MAX_MASTER; - if (err_chk) { - master_num--; - - tsi148_device->flush_image = - kmalloc(sizeof(struct vme_master_resource), GFP_KERNEL); - if (tsi148_device->flush_image == NULL) { - dev_err(&pdev->dev, "Failed to allocate memory for " - "flush resource structure\n"); - retval = -ENOMEM; - goto err_master; - } - tsi148_device->flush_image->parent = tsi148_bridge; - spin_lock_init(&(tsi148_device->flush_image->lock)); - tsi148_device->flush_image->locked = 1; - tsi148_device->flush_image->number = master_num; - tsi148_device->flush_image->address_attr = VME_A16 | VME_A24 | - VME_A32 | VME_A64; - tsi148_device->flush_image->cycle_attr = VME_SCT | VME_BLT | - VME_MBLT | VME_2eVME | VME_2eSST | VME_2eSSTB | - VME_2eSST160 | VME_2eSST267 | VME_2eSST320 | VME_SUPER | - VME_USER | VME_PROG | VME_DATA; - tsi148_device->flush_image->width_attr = VME_D16 | VME_D32; - memset(&(tsi148_device->flush_image->bus_resource), 0, - sizeof(struct resource)); - tsi148_device->flush_image->kern_base = NULL; - } - - /* Add master windows to list */ - INIT_LIST_HEAD(&(tsi148_bridge->master_resources)); - for (i = 0; i < master_num; i++) { - master_image = kmalloc(sizeof(struct vme_master_resource), - GFP_KERNEL); - if (master_image == NULL) { - dev_err(&pdev->dev, "Failed to allocate memory for " - "master resource structure\n"); - retval = -ENOMEM; - goto err_master; - } - master_image->parent = tsi148_bridge; - spin_lock_init(&(master_image->lock)); - master_image->locked = 0; - master_image->number = i; - master_image->address_attr = VME_A16 | VME_A24 | VME_A32 | - VME_A64; - master_image->cycle_attr = VME_SCT | VME_BLT | VME_MBLT | - VME_2eVME | VME_2eSST | VME_2eSSTB | VME_2eSST160 | - VME_2eSST267 | VME_2eSST320 | VME_SUPER | VME_USER | - VME_PROG | VME_DATA; - master_image->width_attr = VME_D16 | VME_D32; - memset(&(master_image->bus_resource), 0, - sizeof(struct resource)); - master_image->kern_base = NULL; - list_add_tail(&(master_image->list), - &(tsi148_bridge->master_resources)); - } - - /* Add slave windows to list */ - INIT_LIST_HEAD(&(tsi148_bridge->slave_resources)); - for (i = 0; i < TSI148_MAX_SLAVE; i++) { - slave_image = kmalloc(sizeof(struct vme_slave_resource), - GFP_KERNEL); - if (slave_image == NULL) { - dev_err(&pdev->dev, "Failed to allocate memory for " - "slave resource structure\n"); - retval = -ENOMEM; - goto err_slave; - } - slave_image->parent = tsi148_bridge; - mutex_init(&(slave_image->mtx)); - slave_image->locked = 0; - slave_image->number = i; - slave_image->address_attr = VME_A16 | VME_A24 | VME_A32 | - VME_A64 | VME_CRCSR | VME_USER1 | VME_USER2 | - VME_USER3 | VME_USER4; - slave_image->cycle_attr = VME_SCT | VME_BLT | VME_MBLT | - VME_2eVME | VME_2eSST | VME_2eSSTB | VME_2eSST160 | - VME_2eSST267 | VME_2eSST320 | VME_SUPER | VME_USER | - VME_PROG | VME_DATA; - list_add_tail(&(slave_image->list), - &(tsi148_bridge->slave_resources)); - } - - /* Add dma engines to list */ - INIT_LIST_HEAD(&(tsi148_bridge->dma_resources)); - for (i = 0; i < TSI148_MAX_DMA; i++) { - dma_ctrlr = kmalloc(sizeof(struct vme_dma_resource), - GFP_KERNEL); - if (dma_ctrlr == NULL) { - dev_err(&pdev->dev, "Failed to allocate memory for " - "dma resource structure\n"); - retval = -ENOMEM; - goto err_dma; - } - dma_ctrlr->parent = tsi148_bridge; - mutex_init(&(dma_ctrlr->mtx)); - dma_ctrlr->locked = 0; - dma_ctrlr->number = i; - dma_ctrlr->route_attr = VME_DMA_VME_TO_MEM | - VME_DMA_MEM_TO_VME | VME_DMA_VME_TO_VME | - VME_DMA_MEM_TO_MEM | VME_DMA_PATTERN_TO_VME | - VME_DMA_PATTERN_TO_MEM; - INIT_LIST_HEAD(&(dma_ctrlr->pending)); - INIT_LIST_HEAD(&(dma_ctrlr->running)); - list_add_tail(&(dma_ctrlr->list), - &(tsi148_bridge->dma_resources)); - } - - /* Add location monitor to list */ - INIT_LIST_HEAD(&(tsi148_bridge->lm_resources)); - lm = kmalloc(sizeof(struct vme_lm_resource), GFP_KERNEL); - if (lm == NULL) { - dev_err(&pdev->dev, "Failed to allocate memory for " - "location monitor resource structure\n"); - retval = -ENOMEM; - goto err_lm; - } - lm->parent = tsi148_bridge; - mutex_init(&(lm->mtx)); - lm->locked = 0; - lm->number = 1; - lm->monitors = 4; - list_add_tail(&(lm->list), &(tsi148_bridge->lm_resources)); - - tsi148_bridge->slave_get = tsi148_slave_get; - tsi148_bridge->slave_set = tsi148_slave_set; - tsi148_bridge->master_get = tsi148_master_get; - tsi148_bridge->master_set = tsi148_master_set; - tsi148_bridge->master_read = tsi148_master_read; - tsi148_bridge->master_write = tsi148_master_write; - tsi148_bridge->master_rmw = tsi148_master_rmw; - tsi148_bridge->dma_list_add = tsi148_dma_list_add; - tsi148_bridge->dma_list_exec = tsi148_dma_list_exec; - tsi148_bridge->dma_list_empty = tsi148_dma_list_empty; - tsi148_bridge->irq_set = tsi148_irq_set; - tsi148_bridge->irq_generate = tsi148_irq_generate; - tsi148_bridge->lm_set = tsi148_lm_set; - tsi148_bridge->lm_get = tsi148_lm_get; - tsi148_bridge->lm_attach = tsi148_lm_attach; - tsi148_bridge->lm_detach = tsi148_lm_detach; - tsi148_bridge->slot_get = tsi148_slot_get; - - data = ioread32be(tsi148_device->base + TSI148_LCSR_VSTAT); - dev_info(&pdev->dev, "Board is%s the VME system controller\n", - (data & TSI148_LCSR_VSTAT_SCONS) ? "" : " not"); - if (!geoid) - dev_info(&pdev->dev, "VME geographical address is %d\n", - data & TSI148_LCSR_VSTAT_GA_M); - else - dev_info(&pdev->dev, "VME geographical address is set to %d\n", - geoid); - - dev_info(&pdev->dev, "VME Write and flush and error check is %s\n", - err_chk ? "enabled" : "disabled"); - - if (tsi148_crcsr_init(tsi148_bridge, pdev)) { - dev_err(&pdev->dev, "CR/CSR configuration failed.\n"); - goto err_crcsr; - } - - retval = vme_register_bridge(tsi148_bridge); - if (retval != 0) { - dev_err(&pdev->dev, "Chip Registration failed.\n"); - goto err_reg; - } - - pci_set_drvdata(pdev, tsi148_bridge); - - /* Clear VME bus "board fail", and "power-up reset" lines */ - data = ioread32be(tsi148_device->base + TSI148_LCSR_VSTAT); - data &= ~TSI148_LCSR_VSTAT_BRDFL; - data |= TSI148_LCSR_VSTAT_CPURST; - iowrite32be(data, tsi148_device->base + TSI148_LCSR_VSTAT); - - return 0; - - vme_unregister_bridge(tsi148_bridge); -err_reg: - tsi148_crcsr_exit(tsi148_bridge, pdev); -err_crcsr: -err_lm: - /* resources are stored in link list */ - list_for_each(pos, &(tsi148_bridge->lm_resources)) { - lm = list_entry(pos, struct vme_lm_resource, list); - list_del(pos); - kfree(lm); - } -err_dma: - /* resources are stored in link list */ - list_for_each(pos, &(tsi148_bridge->dma_resources)) { - dma_ctrlr = list_entry(pos, struct vme_dma_resource, list); - list_del(pos); - kfree(dma_ctrlr); - } -err_slave: - /* resources are stored in link list */ - list_for_each(pos, &(tsi148_bridge->slave_resources)) { - slave_image = list_entry(pos, struct vme_slave_resource, list); - list_del(pos); - kfree(slave_image); - } -err_master: - /* resources are stored in link list */ - list_for_each(pos, &(tsi148_bridge->master_resources)) { - master_image = list_entry(pos, struct vme_master_resource, - list); - list_del(pos); - kfree(master_image); - } - - tsi148_irq_exit(tsi148_device, pdev); -err_irq: -err_test: - iounmap(tsi148_device->base); -err_remap: - pci_release_regions(pdev); -err_resource: - pci_disable_device(pdev); -err_enable: - kfree(tsi148_device); -err_driver: - kfree(tsi148_bridge); -err_struct: - return retval; - -} - -static void tsi148_remove(struct pci_dev *pdev) -{ - struct list_head *pos = NULL; - struct vme_master_resource *master_image; - struct vme_slave_resource *slave_image; - struct vme_dma_resource *dma_ctrlr; - int i; - struct tsi148_driver *bridge; - struct vme_bridge *tsi148_bridge = pci_get_drvdata(pdev); - - bridge = tsi148_bridge->driver_priv; - - - dev_dbg(&pdev->dev, "Driver is being unloaded.\n"); - - /* - * Shutdown all inbound and outbound windows. - */ - for (i = 0; i < 8; i++) { - iowrite32be(0, bridge->base + TSI148_LCSR_IT[i] + - TSI148_LCSR_OFFSET_ITAT); - iowrite32be(0, bridge->base + TSI148_LCSR_OT[i] + - TSI148_LCSR_OFFSET_OTAT); - } - - /* - * Shutdown Location monitor. - */ - iowrite32be(0, bridge->base + TSI148_LCSR_LMAT); - - /* - * Shutdown CRG map. - */ - iowrite32be(0, bridge->base + TSI148_LCSR_CSRAT); - - /* - * Clear error status. - */ - iowrite32be(0xFFFFFFFF, bridge->base + TSI148_LCSR_EDPAT); - iowrite32be(0xFFFFFFFF, bridge->base + TSI148_LCSR_VEAT); - iowrite32be(0x07000700, bridge->base + TSI148_LCSR_PSTAT); - - /* - * Remove VIRQ interrupt (if any) - */ - if (ioread32be(bridge->base + TSI148_LCSR_VICR) & 0x800) - iowrite32be(0x8000, bridge->base + TSI148_LCSR_VICR); - - /* - * Map all Interrupts to PCI INTA - */ - iowrite32be(0x0, bridge->base + TSI148_LCSR_INTM1); - iowrite32be(0x0, bridge->base + TSI148_LCSR_INTM2); - - tsi148_irq_exit(bridge, pdev); - - vme_unregister_bridge(tsi148_bridge); - - tsi148_crcsr_exit(tsi148_bridge, pdev); - - /* resources are stored in link list */ - list_for_each(pos, &(tsi148_bridge->dma_resources)) { - dma_ctrlr = list_entry(pos, struct vme_dma_resource, list); - list_del(pos); - kfree(dma_ctrlr); - } - - /* resources are stored in link list */ - list_for_each(pos, &(tsi148_bridge->slave_resources)) { - slave_image = list_entry(pos, struct vme_slave_resource, list); - list_del(pos); - kfree(slave_image); - } - - /* resources are stored in link list */ - list_for_each(pos, &(tsi148_bridge->master_resources)) { - master_image = list_entry(pos, struct vme_master_resource, - list); - list_del(pos); - kfree(master_image); - } - - tsi148_irq_exit(bridge, pdev); - - iounmap(bridge->base); - - pci_release_regions(pdev); - - pci_disable_device(pdev); - - kfree(tsi148_bridge->driver_priv); - - kfree(tsi148_bridge); -} - -static void __exit tsi148_exit(void) -{ - pci_unregister_driver(&tsi148_driver); -} - -MODULE_PARM_DESC(err_chk, "Check for VME errors on reads and writes"); -module_param(err_chk, bool, 0); - -MODULE_PARM_DESC(geoid, "Override geographical addressing"); -module_param(geoid, int, 0); - -MODULE_DESCRIPTION("VME driver for the Tundra Tempe VME bridge"); -MODULE_LICENSE("GPL"); - -module_init(tsi148_init); -module_exit(tsi148_exit); diff --git a/drivers/staging/vme/bridges/vme_tsi148.h b/drivers/staging/vme/bridges/vme_tsi148.h deleted file mode 100644 index bda64ef8575..00000000000 --- a/drivers/staging/vme/bridges/vme_tsi148.h +++ /dev/null @@ -1,1409 +0,0 @@ -/* - * tsi148.h - * - * Support for the Tundra TSI148 VME Bridge chip - * - * Author: Tom Armistead - * Updated and maintained by Ajit Prem - * Copyright 2004 Motorola Inc. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ - -#ifndef TSI148_H -#define TSI148_H - -#ifndef PCI_VENDOR_ID_TUNDRA -#define PCI_VENDOR_ID_TUNDRA 0x10e3 -#endif - -#ifndef PCI_DEVICE_ID_TUNDRA_TSI148 -#define PCI_DEVICE_ID_TUNDRA_TSI148 0x148 -#endif - -/* - * Define the number of each that the Tsi148 supports. - */ -#define TSI148_MAX_MASTER 8 /* Max Master Windows */ -#define TSI148_MAX_SLAVE 8 /* Max Slave Windows */ -#define TSI148_MAX_DMA 2 /* Max DMA Controllers */ -#define TSI148_MAX_MAILBOX 4 /* Max Mail Box registers */ -#define TSI148_MAX_SEMAPHORE 8 /* Max Semaphores */ - -/* Structure used to hold driver specific information */ -struct tsi148_driver { - void *base; /* Base Address of device registers */ - wait_queue_head_t dma_queue[2]; - wait_queue_head_t iack_queue; - void (*lm_callback[4])(int); /* Called in interrupt handler */ - void *crcsr_kernel; - dma_addr_t crcsr_bus; - struct vme_master_resource *flush_image; - struct mutex vme_rmw; /* Only one RMW cycle at a time */ - struct mutex vme_int; /* - * Only one VME interrupt can be - * generated at a time, provide locking - */ -}; - -/* - * Layout of a DMAC Linked-List Descriptor - * - * Note: This structure is accessed via the chip and therefore must be - * correctly laid out - It must also be aligned on 64-bit boundaries. - */ -struct tsi148_dma_descriptor { - u32 dsau; /* Source Address */ - u32 dsal; - u32 ddau; /* Destination Address */ - u32 ddal; - u32 dsat; /* Source attributes */ - u32 ddat; /* Destination attributes */ - u32 dnlau; /* Next link address */ - u32 dnlal; - u32 dcnt; /* Byte count */ - u32 ddbs; /* 2eSST Broadcast select */ -}; - -struct tsi148_dma_entry { - /* - * The descriptor needs to be aligned on a 64-bit boundary, we increase - * the chance of this by putting it first in the structure. - */ - struct tsi148_dma_descriptor descriptor; - struct list_head list; -}; - -/* - * TSI148 ASIC register structure overlays and bit field definitions. - * - * Note: Tsi148 Register Group (CRG) consists of the following - * combination of registers: - * PCFS - PCI Configuration Space Registers - * LCSR - Local Control and Status Registers - * GCSR - Global Control and Status Registers - * CR/CSR - Subset of Configuration ROM / - * Control and Status Registers - */ - - -/* - * Command/Status Registers (CRG + $004) - */ -#define TSI148_PCFS_ID 0x0 -#define TSI148_PCFS_CSR 0x4 -#define TSI148_PCFS_CLASS 0x8 -#define TSI148_PCFS_MISC0 0xC -#define TSI148_PCFS_MBARL 0x10 -#define TSI148_PCFS_MBARU 0x14 - -#define TSI148_PCFS_SUBID 0x28 - -#define TSI148_PCFS_CAPP 0x34 - -#define TSI148_PCFS_MISC1 0x3C - -#define TSI148_PCFS_XCAPP 0x40 -#define TSI148_PCFS_XSTAT 0x44 - -/* - * LCSR definitions - */ - -/* - * Outbound Translations - */ -#define TSI148_LCSR_OT0_OTSAU 0x100 -#define TSI148_LCSR_OT0_OTSAL 0x104 -#define TSI148_LCSR_OT0_OTEAU 0x108 -#define TSI148_LCSR_OT0_OTEAL 0x10C -#define TSI148_LCSR_OT0_OTOFU 0x110 -#define TSI148_LCSR_OT0_OTOFL 0x114 -#define TSI148_LCSR_OT0_OTBS 0x118 -#define TSI148_LCSR_OT0_OTAT 0x11C - -#define TSI148_LCSR_OT1_OTSAU 0x120 -#define TSI148_LCSR_OT1_OTSAL 0x124 -#define TSI148_LCSR_OT1_OTEAU 0x128 -#define TSI148_LCSR_OT1_OTEAL 0x12C -#define TSI148_LCSR_OT1_OTOFU 0x130 -#define TSI148_LCSR_OT1_OTOFL 0x134 -#define TSI148_LCSR_OT1_OTBS 0x138 -#define TSI148_LCSR_OT1_OTAT 0x13C - -#define TSI148_LCSR_OT2_OTSAU 0x140 -#define TSI148_LCSR_OT2_OTSAL 0x144 -#define TSI148_LCSR_OT2_OTEAU 0x148 -#define TSI148_LCSR_OT2_OTEAL 0x14C -#define TSI148_LCSR_OT2_OTOFU 0x150 -#define TSI148_LCSR_OT2_OTOFL 0x154 -#define TSI148_LCSR_OT2_OTBS 0x158 -#define TSI148_LCSR_OT2_OTAT 0x15C - -#define TSI148_LCSR_OT3_OTSAU 0x160 -#define TSI148_LCSR_OT3_OTSAL 0x164 -#define TSI148_LCSR_OT3_OTEAU 0x168 -#define TSI148_LCSR_OT3_OTEAL 0x16C -#define TSI148_LCSR_OT3_OTOFU 0x170 -#define TSI148_LCSR_OT3_OTOFL 0x174 -#define TSI148_LCSR_OT3_OTBS 0x178 -#define TSI148_LCSR_OT3_OTAT 0x17C - -#define TSI148_LCSR_OT4_OTSAU 0x180 -#define TSI148_LCSR_OT4_OTSAL 0x184 -#define TSI148_LCSR_OT4_OTEAU 0x188 -#define TSI148_LCSR_OT4_OTEAL 0x18C -#define TSI148_LCSR_OT4_OTOFU 0x190 -#define TSI148_LCSR_OT4_OTOFL 0x194 -#define TSI148_LCSR_OT4_OTBS 0x198 -#define TSI148_LCSR_OT4_OTAT 0x19C - -#define TSI148_LCSR_OT5_OTSAU 0x1A0 -#define TSI148_LCSR_OT5_OTSAL 0x1A4 -#define TSI148_LCSR_OT5_OTEAU 0x1A8 -#define TSI148_LCSR_OT5_OTEAL 0x1AC -#define TSI148_LCSR_OT5_OTOFU 0x1B0 -#define TSI148_LCSR_OT5_OTOFL 0x1B4 -#define TSI148_LCSR_OT5_OTBS 0x1B8 -#define TSI148_LCSR_OT5_OTAT 0x1BC - -#define TSI148_LCSR_OT6_OTSAU 0x1C0 -#define TSI148_LCSR_OT6_OTSAL 0x1C4 -#define TSI148_LCSR_OT6_OTEAU 0x1C8 -#define TSI148_LCSR_OT6_OTEAL 0x1CC -#define TSI148_LCSR_OT6_OTOFU 0x1D0 -#define TSI148_LCSR_OT6_OTOFL 0x1D4 -#define TSI148_LCSR_OT6_OTBS 0x1D8 -#define TSI148_LCSR_OT6_OTAT 0x1DC - -#define TSI148_LCSR_OT7_OTSAU 0x1E0 -#define TSI148_LCSR_OT7_OTSAL 0x1E4 -#define TSI148_LCSR_OT7_OTEAU 0x1E8 -#define TSI148_LCSR_OT7_OTEAL 0x1EC -#define TSI148_LCSR_OT7_OTOFU 0x1F0 -#define TSI148_LCSR_OT7_OTOFL 0x1F4 -#define TSI148_LCSR_OT7_OTBS 0x1F8 -#define TSI148_LCSR_OT7_OTAT 0x1FC - -#define TSI148_LCSR_OT0 0x100 -#define TSI148_LCSR_OT1 0x120 -#define TSI148_LCSR_OT2 0x140 -#define TSI148_LCSR_OT3 0x160 -#define TSI148_LCSR_OT4 0x180 -#define TSI148_LCSR_OT5 0x1A0 -#define TSI148_LCSR_OT6 0x1C0 -#define TSI148_LCSR_OT7 0x1E0 - -static const int TSI148_LCSR_OT[8] = { TSI148_LCSR_OT0, TSI148_LCSR_OT1, - TSI148_LCSR_OT2, TSI148_LCSR_OT3, - TSI148_LCSR_OT4, TSI148_LCSR_OT5, - TSI148_LCSR_OT6, TSI148_LCSR_OT7 }; - -#define TSI148_LCSR_OFFSET_OTSAU 0x0 -#define TSI148_LCSR_OFFSET_OTSAL 0x4 -#define TSI148_LCSR_OFFSET_OTEAU 0x8 -#define TSI148_LCSR_OFFSET_OTEAL 0xC -#define TSI148_LCSR_OFFSET_OTOFU 0x10 -#define TSI148_LCSR_OFFSET_OTOFL 0x14 -#define TSI148_LCSR_OFFSET_OTBS 0x18 -#define TSI148_LCSR_OFFSET_OTAT 0x1C - -/* - * VMEbus interupt ack - * offset 200 - */ -#define TSI148_LCSR_VIACK1 0x204 -#define TSI148_LCSR_VIACK2 0x208 -#define TSI148_LCSR_VIACK3 0x20C -#define TSI148_LCSR_VIACK4 0x210 -#define TSI148_LCSR_VIACK5 0x214 -#define TSI148_LCSR_VIACK6 0x218 -#define TSI148_LCSR_VIACK7 0x21C - -static const int TSI148_LCSR_VIACK[8] = { 0, TSI148_LCSR_VIACK1, - TSI148_LCSR_VIACK2, TSI148_LCSR_VIACK3, - TSI148_LCSR_VIACK4, TSI148_LCSR_VIACK5, - TSI148_LCSR_VIACK6, TSI148_LCSR_VIACK7 }; - -/* - * RMW - * offset 220 - */ -#define TSI148_LCSR_RMWAU 0x220 -#define TSI148_LCSR_RMWAL 0x224 -#define TSI148_LCSR_RMWEN 0x228 -#define TSI148_LCSR_RMWC 0x22C -#define TSI148_LCSR_RMWS 0x230 - -/* - * VMEbus control - * offset 234 - */ -#define TSI148_LCSR_VMCTRL 0x234 -#define TSI148_LCSR_VCTRL 0x238 -#define TSI148_LCSR_VSTAT 0x23C - -/* - * PCI status - * offset 240 - */ -#define TSI148_LCSR_PSTAT 0x240 - -/* - * VME filter. - * offset 250 - */ -#define TSI148_LCSR_VMEFL 0x250 - - /* - * VME exception. - * offset 260 - */ -#define TSI148_LCSR_VEAU 0x260 -#define TSI148_LCSR_VEAL 0x264 -#define TSI148_LCSR_VEAT 0x268 - - /* - * PCI error - * offset 270 - */ -#define TSI148_LCSR_EDPAU 0x270 -#define TSI148_LCSR_EDPAL 0x274 -#define TSI148_LCSR_EDPXA 0x278 -#define TSI148_LCSR_EDPXS 0x27C -#define TSI148_LCSR_EDPAT 0x280 - - /* - * Inbound Translations - * offset 300 - */ -#define TSI148_LCSR_IT0_ITSAU 0x300 -#define TSI148_LCSR_IT0_ITSAL 0x304 -#define TSI148_LCSR_IT0_ITEAU 0x308 -#define TSI148_LCSR_IT0_ITEAL 0x30C -#define TSI148_LCSR_IT0_ITOFU 0x310 -#define TSI148_LCSR_IT0_ITOFL 0x314 -#define TSI148_LCSR_IT0_ITAT 0x318 - -#define TSI148_LCSR_IT1_ITSAU 0x320 -#define TSI148_LCSR_IT1_ITSAL 0x324 -#define TSI148_LCSR_IT1_ITEAU 0x328 -#define TSI148_LCSR_IT1_ITEAL 0x32C -#define TSI148_LCSR_IT1_ITOFU 0x330 -#define TSI148_LCSR_IT1_ITOFL 0x334 -#define TSI148_LCSR_IT1_ITAT 0x338 - -#define TSI148_LCSR_IT2_ITSAU 0x340 -#define TSI148_LCSR_IT2_ITSAL 0x344 -#define TSI148_LCSR_IT2_ITEAU 0x348 -#define TSI148_LCSR_IT2_ITEAL 0x34C -#define TSI148_LCSR_IT2_ITOFU 0x350 -#define TSI148_LCSR_IT2_ITOFL 0x354 -#define TSI148_LCSR_IT2_ITAT 0x358 - -#define TSI148_LCSR_IT3_ITSAU 0x360 -#define TSI148_LCSR_IT3_ITSAL 0x364 -#define TSI148_LCSR_IT3_ITEAU 0x368 -#define TSI148_LCSR_IT3_ITEAL 0x36C -#define TSI148_LCSR_IT3_ITOFU 0x370 -#define TSI148_LCSR_IT3_ITOFL 0x374 -#define TSI148_LCSR_IT3_ITAT 0x378 - -#define TSI148_LCSR_IT4_ITSAU 0x380 -#define TSI148_LCSR_IT4_ITSAL 0x384 -#define TSI148_LCSR_IT4_ITEAU 0x388 -#define TSI148_LCSR_IT4_ITEAL 0x38C -#define TSI148_LCSR_IT4_ITOFU 0x390 -#define TSI148_LCSR_IT4_ITOFL 0x394 -#define TSI148_LCSR_IT4_ITAT 0x398 - -#define TSI148_LCSR_IT5_ITSAU 0x3A0 -#define TSI148_LCSR_IT5_ITSAL 0x3A4 -#define TSI148_LCSR_IT5_ITEAU 0x3A8 -#define TSI148_LCSR_IT5_ITEAL 0x3AC -#define TSI148_LCSR_IT5_ITOFU 0x3B0 -#define TSI148_LCSR_IT5_ITOFL 0x3B4 -#define TSI148_LCSR_IT5_ITAT 0x3B8 - -#define TSI148_LCSR_IT6_ITSAU 0x3C0 -#define TSI148_LCSR_IT6_ITSAL 0x3C4 -#define TSI148_LCSR_IT6_ITEAU 0x3C8 -#define TSI148_LCSR_IT6_ITEAL 0x3CC -#define TSI148_LCSR_IT6_ITOFU 0x3D0 -#define TSI148_LCSR_IT6_ITOFL 0x3D4 -#define TSI148_LCSR_IT6_ITAT 0x3D8 - -#define TSI148_LCSR_IT7_ITSAU 0x3E0 -#define TSI148_LCSR_IT7_ITSAL 0x3E4 -#define TSI148_LCSR_IT7_ITEAU 0x3E8 -#define TSI148_LCSR_IT7_ITEAL 0x3EC -#define TSI148_LCSR_IT7_ITOFU 0x3F0 -#define TSI148_LCSR_IT7_ITOFL 0x3F4 -#define TSI148_LCSR_IT7_ITAT 0x3F8 - - -#define TSI148_LCSR_IT0 0x300 -#define TSI148_LCSR_IT1 0x320 -#define TSI148_LCSR_IT2 0x340 -#define TSI148_LCSR_IT3 0x360 -#define TSI148_LCSR_IT4 0x380 -#define TSI148_LCSR_IT5 0x3A0 -#define TSI148_LCSR_IT6 0x3C0 -#define TSI148_LCSR_IT7 0x3E0 - -static const int TSI148_LCSR_IT[8] = { TSI148_LCSR_IT0, TSI148_LCSR_IT1, - TSI148_LCSR_IT2, TSI148_LCSR_IT3, - TSI148_LCSR_IT4, TSI148_LCSR_IT5, - TSI148_LCSR_IT6, TSI148_LCSR_IT7 }; - -#define TSI148_LCSR_OFFSET_ITSAU 0x0 -#define TSI148_LCSR_OFFSET_ITSAL 0x4 -#define TSI148_LCSR_OFFSET_ITEAU 0x8 -#define TSI148_LCSR_OFFSET_ITEAL 0xC -#define TSI148_LCSR_OFFSET_ITOFU 0x10 -#define TSI148_LCSR_OFFSET_ITOFL 0x14 -#define TSI148_LCSR_OFFSET_ITAT 0x18 - - /* - * Inbound Translation GCSR - * offset 400 - */ -#define TSI148_LCSR_GBAU 0x400 -#define TSI148_LCSR_GBAL 0x404 -#define TSI148_LCSR_GCSRAT 0x408 - - /* - * Inbound Translation CRG - * offset 40C - */ -#define TSI148_LCSR_CBAU 0x40C -#define TSI148_LCSR_CBAL 0x410 -#define TSI148_LCSR_CSRAT 0x414 - - /* - * Inbound Translation CR/CSR - * CRG - * offset 418 - */ -#define TSI148_LCSR_CROU 0x418 -#define TSI148_LCSR_CROL 0x41C -#define TSI148_LCSR_CRAT 0x420 - - /* - * Inbound Translation Location Monitor - * offset 424 - */ -#define TSI148_LCSR_LMBAU 0x424 -#define TSI148_LCSR_LMBAL 0x428 -#define TSI148_LCSR_LMAT 0x42C - - /* - * VMEbus Interrupt Control. - * offset 430 - */ -#define TSI148_LCSR_BCU 0x430 -#define TSI148_LCSR_BCL 0x434 -#define TSI148_LCSR_BPGTR 0x438 -#define TSI148_LCSR_BPCTR 0x43C -#define TSI148_LCSR_VICR 0x440 - - /* - * Local Bus Interrupt Control. - * offset 448 - */ -#define TSI148_LCSR_INTEN 0x448 -#define TSI148_LCSR_INTEO 0x44C -#define TSI148_LCSR_INTS 0x450 -#define TSI148_LCSR_INTC 0x454 -#define TSI148_LCSR_INTM1 0x458 -#define TSI148_LCSR_INTM2 0x45C - - /* - * DMA Controllers - * offset 500 - */ -#define TSI148_LCSR_DCTL0 0x500 -#define TSI148_LCSR_DSTA0 0x504 -#define TSI148_LCSR_DCSAU0 0x508 -#define TSI148_LCSR_DCSAL0 0x50C -#define TSI148_LCSR_DCDAU0 0x510 -#define TSI148_LCSR_DCDAL0 0x514 -#define TSI148_LCSR_DCLAU0 0x518 -#define TSI148_LCSR_DCLAL0 0x51C -#define TSI148_LCSR_DSAU0 0x520 -#define TSI148_LCSR_DSAL0 0x524 -#define TSI148_LCSR_DDAU0 0x528 -#define TSI148_LCSR_DDAL0 0x52C -#define TSI148_LCSR_DSAT0 0x530 -#define TSI148_LCSR_DDAT0 0x534 -#define TSI148_LCSR_DNLAU0 0x538 -#define TSI148_LCSR_DNLAL0 0x53C -#define TSI148_LCSR_DCNT0 0x540 -#define TSI148_LCSR_DDBS0 0x544 - -#define TSI148_LCSR_DCTL1 0x580 -#define TSI148_LCSR_DSTA1 0x584 -#define TSI148_LCSR_DCSAU1 0x588 -#define TSI148_LCSR_DCSAL1 0x58C -#define TSI148_LCSR_DCDAU1 0x590 -#define TSI148_LCSR_DCDAL1 0x594 -#define TSI148_LCSR_DCLAU1 0x598 -#define TSI148_LCSR_DCLAL1 0x59C -#define TSI148_LCSR_DSAU1 0x5A0 -#define TSI148_LCSR_DSAL1 0x5A4 -#define TSI148_LCSR_DDAU1 0x5A8 -#define TSI148_LCSR_DDAL1 0x5AC -#define TSI148_LCSR_DSAT1 0x5B0 -#define TSI148_LCSR_DDAT1 0x5B4 -#define TSI148_LCSR_DNLAU1 0x5B8 -#define TSI148_LCSR_DNLAL1 0x5BC -#define TSI148_LCSR_DCNT1 0x5C0 -#define TSI148_LCSR_DDBS1 0x5C4 - -#define TSI148_LCSR_DMA0 0x500 -#define TSI148_LCSR_DMA1 0x580 - - -static const int TSI148_LCSR_DMA[TSI148_MAX_DMA] = { TSI148_LCSR_DMA0, - TSI148_LCSR_DMA1 }; - -#define TSI148_LCSR_OFFSET_DCTL 0x0 -#define TSI148_LCSR_OFFSET_DSTA 0x4 -#define TSI148_LCSR_OFFSET_DCSAU 0x8 -#define TSI148_LCSR_OFFSET_DCSAL 0xC -#define TSI148_LCSR_OFFSET_DCDAU 0x10 -#define TSI148_LCSR_OFFSET_DCDAL 0x14 -#define TSI148_LCSR_OFFSET_DCLAU 0x18 -#define TSI148_LCSR_OFFSET_DCLAL 0x1C -#define TSI148_LCSR_OFFSET_DSAU 0x20 -#define TSI148_LCSR_OFFSET_DSAL 0x24 -#define TSI148_LCSR_OFFSET_DDAU 0x28 -#define TSI148_LCSR_OFFSET_DDAL 0x2C -#define TSI148_LCSR_OFFSET_DSAT 0x30 -#define TSI148_LCSR_OFFSET_DDAT 0x34 -#define TSI148_LCSR_OFFSET_DNLAU 0x38 -#define TSI148_LCSR_OFFSET_DNLAL 0x3C -#define TSI148_LCSR_OFFSET_DCNT 0x40 -#define TSI148_LCSR_OFFSET_DDBS 0x44 - - /* - * GCSR Register Group - */ - - /* - * GCSR CRG - * offset 00 600 - DEVI/VENI - * offset 04 604 - CTRL/GA/REVID - * offset 08 608 - Semaphore3/2/1/0 - * offset 0C 60C - Seamphore7/6/5/4 - */ -#define TSI148_GCSR_ID 0x600 -#define TSI148_GCSR_CSR 0x604 -#define TSI148_GCSR_SEMA0 0x608 -#define TSI148_GCSR_SEMA1 0x60C - - /* - * Mail Box - * GCSR CRG - * offset 10 610 - Mailbox0 - */ -#define TSI148_GCSR_MBOX0 0x610 -#define TSI148_GCSR_MBOX1 0x614 -#define TSI148_GCSR_MBOX2 0x618 -#define TSI148_GCSR_MBOX3 0x61C - -static const int TSI148_GCSR_MBOX[4] = { TSI148_GCSR_MBOX0, - TSI148_GCSR_MBOX1, - TSI148_GCSR_MBOX2, - TSI148_GCSR_MBOX3 }; - - /* - * CR/CSR - */ - - /* - * CR/CSR CRG - * offset 7FFF4 FF4 - CSRBCR - * offset 7FFF8 FF8 - CSRBSR - * offset 7FFFC FFC - CBAR - */ -#define TSI148_CSRBCR 0xFF4 -#define TSI148_CSRBSR 0xFF8 -#define TSI148_CBAR 0xFFC - - - - - /* - * TSI148 Register Bit Definitions - */ - - /* - * PFCS Register Set - */ -#define TSI148_PCFS_CMMD_SERR (1<<8) /* SERR_L out pin ssys err */ -#define TSI148_PCFS_CMMD_PERR (1<<6) /* PERR_L out pin parity */ -#define TSI148_PCFS_CMMD_MSTR (1<<2) /* PCI bus master */ -#define TSI148_PCFS_CMMD_MEMSP (1<<1) /* PCI mem space access */ -#define TSI148_PCFS_CMMD_IOSP (1<<0) /* PCI I/O space enable */ - -#define TSI148_PCFS_STAT_RCPVE (1<<15) /* Detected Parity Error */ -#define TSI148_PCFS_STAT_SIGSE (1<<14) /* Signalled System Error */ -#define TSI148_PCFS_STAT_RCVMA (1<<13) /* Received Master Abort */ -#define TSI148_PCFS_STAT_RCVTA (1<<12) /* Received Target Abort */ -#define TSI148_PCFS_STAT_SIGTA (1<<11) /* Signalled Target Abort */ -#define TSI148_PCFS_STAT_SELTIM (3<<9) /* DELSEL Timing */ -#define TSI148_PCFS_STAT_DPAR (1<<8) /* Data Parity Err Reported */ -#define TSI148_PCFS_STAT_FAST (1<<7) /* Fast back-to-back Cap */ -#define TSI148_PCFS_STAT_P66M (1<<5) /* 66 MHz Capable */ -#define TSI148_PCFS_STAT_CAPL (1<<4) /* Capab List - address $34 */ - -/* - * Revision ID/Class Code Registers (CRG +$008) - */ -#define TSI148_PCFS_CLAS_M (0xFF<<24) /* Class ID */ -#define TSI148_PCFS_SUBCLAS_M (0xFF<<16) /* Sub-Class ID */ -#define TSI148_PCFS_PROGIF_M (0xFF<<8) /* Sub-Class ID */ -#define TSI148_PCFS_REVID_M (0xFF<<0) /* Rev ID */ - -/* - * Cache Line Size/ Master Latency Timer/ Header Type Registers (CRG + $00C) - */ -#define TSI148_PCFS_HEAD_M (0xFF<<16) /* Master Lat Timer */ -#define TSI148_PCFS_MLAT_M (0xFF<<8) /* Master Lat Timer */ -#define TSI148_PCFS_CLSZ_M (0xFF<<0) /* Cache Line Size */ - -/* - * Memory Base Address Lower Reg (CRG + $010) - */ -#define TSI148_PCFS_MBARL_BASEL_M (0xFFFFF<<12) /* Base Addr Lower Mask */ -#define TSI148_PCFS_MBARL_PRE (1<<3) /* Prefetch */ -#define TSI148_PCFS_MBARL_MTYPE_M (3<<1) /* Memory Type Mask */ -#define TSI148_PCFS_MBARL_IOMEM (1<<0) /* I/O Space Indicator */ - -/* - * Message Signaled Interrupt Capabilities Register (CRG + $040) - */ -#define TSI148_PCFS_MSICAP_64BAC (1<<7) /* 64-bit Address Capable */ -#define TSI148_PCFS_MSICAP_MME_M (7<<4) /* Multiple Msg Enable Mask */ -#define TSI148_PCFS_MSICAP_MMC_M (7<<1) /* Multiple Msg Capable Mask */ -#define TSI148_PCFS_MSICAP_MSIEN (1<<0) /* Msg signaled INT Enable */ - -/* - * Message Address Lower Register (CRG +$044) - */ -#define TSI148_PCFS_MSIAL_M (0x3FFFFFFF<<2) /* Mask */ - -/* - * Message Data Register (CRG + 4C) - */ -#define TSI148_PCFS_MSIMD_M (0xFFFF<<0) /* Mask */ - -/* - * PCI-X Capabilities Register (CRG + $050) - */ -#define TSI148_PCFS_PCIXCAP_MOST_M (7<<4) /* Max outstanding Split Tran */ -#define TSI148_PCFS_PCIXCAP_MMRBC_M (3<<2) /* Max Mem Read byte cnt */ -#define TSI148_PCFS_PCIXCAP_ERO (1<<1) /* Enable Relaxed Ordering */ -#define TSI148_PCFS_PCIXCAP_DPERE (1<<0) /* Data Parity Recover Enable */ - -/* - * PCI-X Status Register (CRG +$054) - */ -#define TSI148_PCFS_PCIXSTAT_RSCEM (1<<29) /* Recieved Split Comp Error */ -#define TSI148_PCFS_PCIXSTAT_DMCRS_M (7<<26) /* max Cumulative Read Size */ -#define TSI148_PCFS_PCIXSTAT_DMOST_M (7<<23) /* max outstanding Split Trans - */ -#define TSI148_PCFS_PCIXSTAT_DMMRC_M (3<<21) /* max mem read byte count */ -#define TSI148_PCFS_PCIXSTAT_DC (1<<20) /* Device Complexity */ -#define TSI148_PCFS_PCIXSTAT_USC (1<<19) /* Unexpected Split comp */ -#define TSI148_PCFS_PCIXSTAT_SCD (1<<18) /* Split completion discard */ -#define TSI148_PCFS_PCIXSTAT_133C (1<<17) /* 133MHz capable */ -#define TSI148_PCFS_PCIXSTAT_64D (1<<16) /* 64 bit device */ -#define TSI148_PCFS_PCIXSTAT_BN_M (0xFF<<8) /* Bus number */ -#define TSI148_PCFS_PCIXSTAT_DN_M (0x1F<<3) /* Device number */ -#define TSI148_PCFS_PCIXSTAT_FN_M (7<<0) /* Function Number */ - -/* - * LCSR Registers - */ - -/* - * Outbound Translation Starting Address Lower - */ -#define TSI148_LCSR_OTSAL_M (0xFFFF<<16) /* Mask */ - -/* - * Outbound Translation Ending Address Lower - */ -#define TSI148_LCSR_OTEAL_M (0xFFFF<<16) /* Mask */ - -/* - * Outbound Translation Offset Lower - */ -#define TSI148_LCSR_OTOFFL_M (0xFFFF<<16) /* Mask */ - -/* - * Outbound Translation 2eSST Broadcast Select - */ -#define TSI148_LCSR_OTBS_M (0xFFFFF<<0) /* Mask */ - -/* - * Outbound Translation Attribute - */ -#define TSI148_LCSR_OTAT_EN (1<<31) /* Window Enable */ -#define TSI148_LCSR_OTAT_MRPFD (1<<18) /* Prefetch Disable */ - -#define TSI148_LCSR_OTAT_PFS_M (3<<16) /* Prefetch Size Mask */ -#define TSI148_LCSR_OTAT_PFS_2 (0<<16) /* 2 Cache Lines P Size */ -#define TSI148_LCSR_OTAT_PFS_4 (1<<16) /* 4 Cache Lines P Size */ -#define TSI148_LCSR_OTAT_PFS_8 (2<<16) /* 8 Cache Lines P Size */ -#define TSI148_LCSR_OTAT_PFS_16 (3<<16) /* 16 Cache Lines P Size */ - -#define TSI148_LCSR_OTAT_2eSSTM_M (7<<11) /* 2eSST Xfer Rate Mask */ -#define TSI148_LCSR_OTAT_2eSSTM_160 (0<<11) /* 160MB/s 2eSST Xfer Rate */ -#define TSI148_LCSR_OTAT_2eSSTM_267 (1<<11) /* 267MB/s 2eSST Xfer Rate */ -#define TSI148_LCSR_OTAT_2eSSTM_320 (2<<11) /* 320MB/s 2eSST Xfer Rate */ - -#define TSI148_LCSR_OTAT_TM_M (7<<8) /* Xfer Protocol Mask */ -#define TSI148_LCSR_OTAT_TM_SCT (0<<8) /* SCT Xfer Protocol */ -#define TSI148_LCSR_OTAT_TM_BLT (1<<8) /* BLT Xfer Protocol */ -#define TSI148_LCSR_OTAT_TM_MBLT (2<<8) /* MBLT Xfer Protocol */ -#define TSI148_LCSR_OTAT_TM_2eVME (3<<8) /* 2eVME Xfer Protocol */ -#define TSI148_LCSR_OTAT_TM_2eSST (4<<8) /* 2eSST Xfer Protocol */ -#define TSI148_LCSR_OTAT_TM_2eSSTB (5<<8) /* 2eSST Bcast Xfer Protocol */ - -#define TSI148_LCSR_OTAT_DBW_M (3<<6) /* Max Data Width */ -#define TSI148_LCSR_OTAT_DBW_16 (0<<6) /* 16-bit Data Width */ -#define TSI148_LCSR_OTAT_DBW_32 (1<<6) /* 32-bit Data Width */ - -#define TSI148_LCSR_OTAT_SUP (1<<5) /* Supervisory Access */ -#define TSI148_LCSR_OTAT_PGM (1<<4) /* Program Access */ - -#define TSI148_LCSR_OTAT_AMODE_M (0xf<<0) /* Address Mode Mask */ -#define TSI148_LCSR_OTAT_AMODE_A16 (0<<0) /* A16 Address Space */ -#define TSI148_LCSR_OTAT_AMODE_A24 (1<<0) /* A24 Address Space */ -#define TSI148_LCSR_OTAT_AMODE_A32 (2<<0) /* A32 Address Space */ -#define TSI148_LCSR_OTAT_AMODE_A64 (4<<0) /* A32 Address Space */ -#define TSI148_LCSR_OTAT_AMODE_CRCSR (5<<0) /* CR/CSR Address Space */ -#define TSI148_LCSR_OTAT_AMODE_USER1 (8<<0) /* User1 Address Space */ -#define TSI148_LCSR_OTAT_AMODE_USER2 (9<<0) /* User2 Address Space */ -#define TSI148_LCSR_OTAT_AMODE_USER3 (10<<0) /* User3 Address Space */ -#define TSI148_LCSR_OTAT_AMODE_USER4 (11<<0) /* User4 Address Space */ - -/* - * VME Master Control Register CRG+$234 - */ -#define TSI148_LCSR_VMCTRL_VSA (1<<27) /* VMEbus Stop Ack */ -#define TSI148_LCSR_VMCTRL_VS (1<<26) /* VMEbus Stop */ -#define TSI148_LCSR_VMCTRL_DHB (1<<25) /* Device Has Bus */ -#define TSI148_LCSR_VMCTRL_DWB (1<<24) /* Device Wants Bus */ - -#define TSI148_LCSR_VMCTRL_RMWEN (1<<20) /* RMW Enable */ - -#define TSI148_LCSR_VMCTRL_ATO_M (7<<16) /* Master Access Time-out Mask - */ -#define TSI148_LCSR_VMCTRL_ATO_32 (0<<16) /* 32 us */ -#define TSI148_LCSR_VMCTRL_ATO_128 (1<<16) /* 128 us */ -#define TSI148_LCSR_VMCTRL_ATO_512 (2<<16) /* 512 us */ -#define TSI148_LCSR_VMCTRL_ATO_2M (3<<16) /* 2 ms */ -#define TSI148_LCSR_VMCTRL_ATO_8M (4<<16) /* 8 ms */ -#define TSI148_LCSR_VMCTRL_ATO_32M (5<<16) /* 32 ms */ -#define TSI148_LCSR_VMCTRL_ATO_128M (6<<16) /* 128 ms */ -#define TSI148_LCSR_VMCTRL_ATO_DIS (7<<16) /* Disabled */ - -#define TSI148_LCSR_VMCTRL_VTOFF_M (7<<12) /* VMEbus Master Time off */ -#define TSI148_LCSR_VMCTRL_VTOFF_0 (0<<12) /* 0us */ -#define TSI148_LCSR_VMCTRL_VTOFF_1 (1<<12) /* 1us */ -#define TSI148_LCSR_VMCTRL_VTOFF_2 (2<<12) /* 2us */ -#define TSI148_LCSR_VMCTRL_VTOFF_4 (3<<12) /* 4us */ -#define TSI148_LCSR_VMCTRL_VTOFF_8 (4<<12) /* 8us */ -#define TSI148_LCSR_VMCTRL_VTOFF_16 (5<<12) /* 16us */ -#define TSI148_LCSR_VMCTRL_VTOFF_32 (6<<12) /* 32us */ -#define TSI148_LCSR_VMCTRL_VTOFF_64 (7<<12) /* 64us */ - -#define TSI148_LCSR_VMCTRL_VTON_M (7<<8) /* VMEbus Master Time On */ -#define TSI148_LCSR_VMCTRL_VTON_4 (0<<8) /* 8us */ -#define TSI148_LCSR_VMCTRL_VTON_8 (1<<8) /* 8us */ -#define TSI148_LCSR_VMCTRL_VTON_16 (2<<8) /* 16us */ -#define TSI148_LCSR_VMCTRL_VTON_32 (3<<8) /* 32us */ -#define TSI148_LCSR_VMCTRL_VTON_64 (4<<8) /* 64us */ -#define TSI148_LCSR_VMCTRL_VTON_128 (5<<8) /* 128us */ -#define TSI148_LCSR_VMCTRL_VTON_256 (6<<8) /* 256us */ -#define TSI148_LCSR_VMCTRL_VTON_512 (7<<8) /* 512us */ - -#define TSI148_LCSR_VMCTRL_VREL_M (3<<3) /* VMEbus Master Rel Mode Mask - */ -#define TSI148_LCSR_VMCTRL_VREL_T_D (0<<3) /* Time on or Done */ -#define TSI148_LCSR_VMCTRL_VREL_T_R_D (1<<3) /* Time on and REQ or Done */ -#define TSI148_LCSR_VMCTRL_VREL_T_B_D (2<<3) /* Time on and BCLR or Done */ -#define TSI148_LCSR_VMCTRL_VREL_T_D_R (3<<3) /* Time on or Done and REQ */ - -#define TSI148_LCSR_VMCTRL_VFAIR (1<<2) /* VMEbus Master Fair Mode */ -#define TSI148_LCSR_VMCTRL_VREQL_M (3<<0) /* VMEbus Master Req Level Mask - */ - -/* - * VMEbus Control Register CRG+$238 - */ -#define TSI148_LCSR_VCTRL_LRE (1<<31) /* Late Retry Enable */ - -#define TSI148_LCSR_VCTRL_DLT_M (0xF<<24) /* Deadlock Timer */ -#define TSI148_LCSR_VCTRL_DLT_OFF (0<<24) /* Deadlock Timer Off */ -#define TSI148_LCSR_VCTRL_DLT_16 (1<<24) /* 16 VCLKS */ -#define TSI148_LCSR_VCTRL_DLT_32 (2<<24) /* 32 VCLKS */ -#define TSI148_LCSR_VCTRL_DLT_64 (3<<24) /* 64 VCLKS */ -#define TSI148_LCSR_VCTRL_DLT_128 (4<<24) /* 128 VCLKS */ -#define TSI148_LCSR_VCTRL_DLT_256 (5<<24) /* 256 VCLKS */ -#define TSI148_LCSR_VCTRL_DLT_512 (6<<24) /* 512 VCLKS */ -#define TSI148_LCSR_VCTRL_DLT_1024 (7<<24) /* 1024 VCLKS */ -#define TSI148_LCSR_VCTRL_DLT_2048 (8<<24) /* 2048 VCLKS */ -#define TSI148_LCSR_VCTRL_DLT_4096 (9<<24) /* 4096 VCLKS */ -#define TSI148_LCSR_VCTRL_DLT_8192 (0xA<<24) /* 8192 VCLKS */ -#define TSI148_LCSR_VCTRL_DLT_16384 (0xB<<24) /* 16384 VCLKS */ -#define TSI148_LCSR_VCTRL_DLT_32768 (0xC<<24) /* 32768 VCLKS */ - -#define TSI148_LCSR_VCTRL_NERBB (1<<20) /* No Early Release of Bus Busy - */ - -#define TSI148_LCSR_VCTRL_SRESET (1<<17) /* System Reset */ -#define TSI148_LCSR_VCTRL_LRESET (1<<16) /* Local Reset */ - -#define TSI148_LCSR_VCTRL_SFAILAI (1<<15) /* SYSFAIL Auto Slot ID */ -#define TSI148_LCSR_VCTRL_BID_M (0x1F<<8) /* Broadcast ID Mask */ - -#define TSI148_LCSR_VCTRL_ATOEN (1<<7) /* Arbiter Time-out Enable */ -#define TSI148_LCSR_VCTRL_ROBIN (1<<6) /* VMEbus Round Robin */ - -#define TSI148_LCSR_VCTRL_GTO_M (7<<0) /* VMEbus Global Time-out Mask - */ -#define TSI148_LCSR_VCTRL_GTO_8 (0<<0) /* 8 us */ -#define TSI148_LCSR_VCTRL_GTO_16 (1<<0) /* 16 us */ -#define TSI148_LCSR_VCTRL_GTO_32 (2<<0) /* 32 us */ -#define TSI148_LCSR_VCTRL_GTO_64 (3<<0) /* 64 us */ -#define TSI148_LCSR_VCTRL_GTO_128 (4<<0) /* 128 us */ -#define TSI148_LCSR_VCTRL_GTO_256 (5<<0) /* 256 us */ -#define TSI148_LCSR_VCTRL_GTO_512 (6<<0) /* 512 us */ -#define TSI148_LCSR_VCTRL_GTO_DIS (7<<0) /* Disabled */ - -/* - * VMEbus Status Register CRG + $23C - */ -#define TSI148_LCSR_VSTAT_CPURST (1<<15) /* Clear power up reset */ -#define TSI148_LCSR_VSTAT_BRDFL (1<<14) /* Board fail */ -#define TSI148_LCSR_VSTAT_PURSTS (1<<12) /* Power up reset status */ -#define TSI148_LCSR_VSTAT_BDFAILS (1<<11) /* Board Fail Status */ -#define TSI148_LCSR_VSTAT_SYSFAILS (1<<10) /* System Fail Status */ -#define TSI148_LCSR_VSTAT_ACFAILS (1<<9) /* AC fail status */ -#define TSI148_LCSR_VSTAT_SCONS (1<<8) /* System Cont Status */ -#define TSI148_LCSR_VSTAT_GAP (1<<5) /* Geographic Addr Parity */ -#define TSI148_LCSR_VSTAT_GA_M (0x1F<<0) /* Geographic Addr Mask */ - -/* - * PCI Configuration Status Register CRG+$240 - */ -#define TSI148_LCSR_PSTAT_REQ64S (1<<6) /* Request 64 status set */ -#define TSI148_LCSR_PSTAT_M66ENS (1<<5) /* M66ENS 66Mhz enable */ -#define TSI148_LCSR_PSTAT_FRAMES (1<<4) /* Frame Status */ -#define TSI148_LCSR_PSTAT_IRDYS (1<<3) /* IRDY status */ -#define TSI148_LCSR_PSTAT_DEVSELS (1<<2) /* DEVL status */ -#define TSI148_LCSR_PSTAT_STOPS (1<<1) /* STOP status */ -#define TSI148_LCSR_PSTAT_TRDYS (1<<0) /* TRDY status */ - -/* - * VMEbus Exception Attributes Register CRG + $268 - */ -#define TSI148_LCSR_VEAT_VES (1<<31) /* Status */ -#define TSI148_LCSR_VEAT_VEOF (1<<30) /* Overflow */ -#define TSI148_LCSR_VEAT_VESCL (1<<29) /* Status Clear */ -#define TSI148_LCSR_VEAT_2EOT (1<<21) /* 2e Odd Termination */ -#define TSI148_LCSR_VEAT_2EST (1<<20) /* 2e Slave terminated */ -#define TSI148_LCSR_VEAT_BERR (1<<19) /* Bus Error */ -#define TSI148_LCSR_VEAT_LWORD (1<<18) /* LWORD_ signal state */ -#define TSI148_LCSR_VEAT_WRITE (1<<17) /* WRITE_ signal state */ -#define TSI148_LCSR_VEAT_IACK (1<<16) /* IACK_ signal state */ -#define TSI148_LCSR_VEAT_DS1 (1<<15) /* DS1_ signal state */ -#define TSI148_LCSR_VEAT_DS0 (1<<14) /* DS0_ signal state */ -#define TSI148_LCSR_VEAT_AM_M (0x3F<<8) /* Address Mode Mask */ -#define TSI148_LCSR_VEAT_XAM_M (0xFF<<0) /* Master AMode Mask */ - - -/* - * VMEbus PCI Error Diagnostics PCI/X Attributes Register CRG + $280 - */ -#define TSI148_LCSR_EDPAT_EDPCL (1<<29) - -/* - * Inbound Translation Starting Address Lower - */ -#define TSI148_LCSR_ITSAL6432_M (0xFFFF<<16) /* Mask */ -#define TSI148_LCSR_ITSAL24_M (0x00FFF<<12) /* Mask */ -#define TSI148_LCSR_ITSAL16_M (0x0000FFF<<4) /* Mask */ - -/* - * Inbound Translation Ending Address Lower - */ -#define TSI148_LCSR_ITEAL6432_M (0xFFFF<<16) /* Mask */ -#define TSI148_LCSR_ITEAL24_M (0x00FFF<<12) /* Mask */ -#define TSI148_LCSR_ITEAL16_M (0x0000FFF<<4) /* Mask */ - -/* - * Inbound Translation Offset Lower - */ -#define TSI148_LCSR_ITOFFL6432_M (0xFFFF<<16) /* Mask */ -#define TSI148_LCSR_ITOFFL24_M (0xFFFFF<<12) /* Mask */ -#define TSI148_LCSR_ITOFFL16_M (0xFFFFFFF<<4) /* Mask */ - -/* - * Inbound Translation Attribute - */ -#define TSI148_LCSR_ITAT_EN (1<<31) /* Window Enable */ -#define TSI148_LCSR_ITAT_TH (1<<18) /* Prefetch Threshold */ - -#define TSI148_LCSR_ITAT_VFS_M (3<<16) /* Virtual FIFO Size Mask */ -#define TSI148_LCSR_ITAT_VFS_64 (0<<16) /* 64 bytes Virtual FIFO Size */ -#define TSI148_LCSR_ITAT_VFS_128 (1<<16) /* 128 bytes Virtual FIFO Sz */ -#define TSI148_LCSR_ITAT_VFS_256 (2<<16) /* 256 bytes Virtual FIFO Sz */ -#define TSI148_LCSR_ITAT_VFS_512 (3<<16) /* 512 bytes Virtual FIFO Sz */ - -#define TSI148_LCSR_ITAT_2eSSTM_M (7<<12) /* 2eSST Xfer Rate Mask */ -#define TSI148_LCSR_ITAT_2eSSTM_160 (0<<12) /* 160MB/s 2eSST Xfer Rate */ -#define TSI148_LCSR_ITAT_2eSSTM_267 (1<<12) /* 267MB/s 2eSST Xfer Rate */ -#define TSI148_LCSR_ITAT_2eSSTM_320 (2<<12) /* 320MB/s 2eSST Xfer Rate */ - -#define TSI148_LCSR_ITAT_2eSSTB (1<<11) /* 2eSST Bcast Xfer Protocol */ -#define TSI148_LCSR_ITAT_2eSST (1<<10) /* 2eSST Xfer Protocol */ -#define TSI148_LCSR_ITAT_2eVME (1<<9) /* 2eVME Xfer Protocol */ -#define TSI148_LCSR_ITAT_MBLT (1<<8) /* MBLT Xfer Protocol */ -#define TSI148_LCSR_ITAT_BLT (1<<7) /* BLT Xfer Protocol */ - -#define TSI148_LCSR_ITAT_AS_M (7<<4) /* Address Space Mask */ -#define TSI148_LCSR_ITAT_AS_A16 (0<<4) /* A16 Address Space */ -#define TSI148_LCSR_ITAT_AS_A24 (1<<4) /* A24 Address Space */ -#define TSI148_LCSR_ITAT_AS_A32 (2<<4) /* A32 Address Space */ -#define TSI148_LCSR_ITAT_AS_A64 (4<<4) /* A64 Address Space */ - -#define TSI148_LCSR_ITAT_SUPR (1<<3) /* Supervisor Access */ -#define TSI148_LCSR_ITAT_NPRIV (1<<2) /* Non-Priv (User) Access */ -#define TSI148_LCSR_ITAT_PGM (1<<1) /* Program Access */ -#define TSI148_LCSR_ITAT_DATA (1<<0) /* Data Access */ - -/* - * GCSR Base Address Lower Address CRG +$404 - */ -#define TSI148_LCSR_GBAL_M (0x7FFFFFF<<5) /* Mask */ - -/* - * GCSR Attribute Register CRG + $408 - */ -#define TSI148_LCSR_GCSRAT_EN (1<<7) /* Enable access to GCSR */ - -#define TSI148_LCSR_GCSRAT_AS_M (7<<4) /* Address Space Mask */ -#define TSI148_LCSR_GCSRAT_AS_A16 (0<<4) /* Address Space 16 */ -#define TSI148_LCSR_GCSRAT_AS_A24 (1<<4) /* Address Space 24 */ -#define TSI148_LCSR_GCSRAT_AS_A32 (2<<4) /* Address Space 32 */ -#define TSI148_LCSR_GCSRAT_AS_A64 (4<<4) /* Address Space 64 */ - -#define TSI148_LCSR_GCSRAT_SUPR (1<<3) /* Sup set -GCSR decoder */ -#define TSI148_LCSR_GCSRAT_NPRIV (1<<2) /* Non-Privliged set - CGSR */ -#define TSI148_LCSR_GCSRAT_PGM (1<<1) /* Program set - GCSR decoder */ -#define TSI148_LCSR_GCSRAT_DATA (1<<0) /* DATA set GCSR decoder */ - -/* - * CRG Base Address Lower Address CRG + $410 - */ -#define TSI148_LCSR_CBAL_M (0xFFFFF<<12) - -/* - * CRG Attribute Register CRG + $414 - */ -#define TSI148_LCSR_CRGAT_EN (1<<7) /* Enable PRG Access */ - -#define TSI148_LCSR_CRGAT_AS_M (7<<4) /* Address Space */ -#define TSI148_LCSR_CRGAT_AS_A16 (0<<4) /* Address Space 16 */ -#define TSI148_LCSR_CRGAT_AS_A24 (1<<4) /* Address Space 24 */ -#define TSI148_LCSR_CRGAT_AS_A32 (2<<4) /* Address Space 32 */ -#define TSI148_LCSR_CRGAT_AS_A64 (4<<4) /* Address Space 64 */ - -#define TSI148_LCSR_CRGAT_SUPR (1<<3) /* Supervisor Access */ -#define TSI148_LCSR_CRGAT_NPRIV (1<<2) /* Non-Privliged(User) Access */ -#define TSI148_LCSR_CRGAT_PGM (1<<1) /* Program Access */ -#define TSI148_LCSR_CRGAT_DATA (1<<0) /* Data Access */ - -/* - * CR/CSR Offset Lower Register CRG + $41C - */ -#define TSI148_LCSR_CROL_M (0x1FFF<<19) /* Mask */ - -/* - * CR/CSR Attribute register CRG + $420 - */ -#define TSI148_LCSR_CRAT_EN (1<<7) /* Enable access to CR/CSR */ - -/* - * Location Monitor base address lower register CRG + $428 - */ -#define TSI148_LCSR_LMBAL_M (0x7FFFFFF<<5) /* Mask */ - -/* - * Location Monitor Attribute Register CRG + $42C - */ -#define TSI148_LCSR_LMAT_EN (1<<7) /* Enable Location Monitor */ - -#define TSI148_LCSR_LMAT_AS_M (7<<4) /* Address Space MASK */ -#define TSI148_LCSR_LMAT_AS_A16 (0<<4) /* A16 */ -#define TSI148_LCSR_LMAT_AS_A24 (1<<4) /* A24 */ -#define TSI148_LCSR_LMAT_AS_A32 (2<<4) /* A32 */ -#define TSI148_LCSR_LMAT_AS_A64 (4<<4) /* A64 */ - -#define TSI148_LCSR_LMAT_SUPR (1<<3) /* Supervisor Access */ -#define TSI148_LCSR_LMAT_NPRIV (1<<2) /* Non-Priv (User) Access */ -#define TSI148_LCSR_LMAT_PGM (1<<1) /* Program Access */ -#define TSI148_LCSR_LMAT_DATA (1<<0) /* Data Access */ - -/* - * Broadcast Pulse Generator Timer Register CRG + $438 - */ -#define TSI148_LCSR_BPGTR_BPGT_M (0xFFFF<<0) /* Mask */ - -/* - * Broadcast Programmable Clock Timer Register CRG + $43C - */ -#define TSI148_LCSR_BPCTR_BPCT_M (0xFFFFFF<<0) /* Mask */ - -/* - * VMEbus Interrupt Control Register CRG + $43C - */ -#define TSI148_LCSR_VICR_CNTS_M (3<<22) /* Cntr Source MASK */ -#define TSI148_LCSR_VICR_CNTS_DIS (1<<22) /* Cntr Disable */ -#define TSI148_LCSR_VICR_CNTS_IRQ1 (2<<22) /* IRQ1 to Cntr */ -#define TSI148_LCSR_VICR_CNTS_IRQ2 (3<<22) /* IRQ2 to Cntr */ - -#define TSI148_LCSR_VICR_EDGIS_M (3<<20) /* Edge interupt MASK */ -#define TSI148_LCSR_VICR_EDGIS_DIS (1<<20) /* Edge interupt Disable */ -#define TSI148_LCSR_VICR_EDGIS_IRQ1 (2<<20) /* IRQ1 to Edge */ -#define TSI148_LCSR_VICR_EDGIS_IRQ2 (3<<20) /* IRQ2 to Edge */ - -#define TSI148_LCSR_VICR_IRQIF_M (3<<18) /* IRQ1* Function MASK */ -#define TSI148_LCSR_VICR_IRQIF_NORM (1<<18) /* Normal */ -#define TSI148_LCSR_VICR_IRQIF_PULSE (2<<18) /* Pulse Generator */ -#define TSI148_LCSR_VICR_IRQIF_PROG (3<<18) /* Programmable Clock */ -#define TSI148_LCSR_VICR_IRQIF_1U (4<<18) /* 1us Clock */ - -#define TSI148_LCSR_VICR_IRQ2F_M (3<<16) /* IRQ2* Function MASK */ -#define TSI148_LCSR_VICR_IRQ2F_NORM (1<<16) /* Normal */ -#define TSI148_LCSR_VICR_IRQ2F_PULSE (2<<16) /* Pulse Generator */ -#define TSI148_LCSR_VICR_IRQ2F_PROG (3<<16) /* Programmable Clock */ -#define TSI148_LCSR_VICR_IRQ2F_1U (4<<16) /* 1us Clock */ - -#define TSI148_LCSR_VICR_BIP (1<<15) /* Broadcast Interrupt Pulse */ - -#define TSI148_LCSR_VICR_IRQC (1<<12) /* VMEbus IRQ Clear */ -#define TSI148_LCSR_VICR_IRQS (1<<11) /* VMEbus IRQ Status */ - -#define TSI148_LCSR_VICR_IRQL_M (7<<8) /* VMEbus SW IRQ Level Mask */ -#define TSI148_LCSR_VICR_IRQL_1 (1<<8) /* VMEbus SW IRQ Level 1 */ -#define TSI148_LCSR_VICR_IRQL_2 (2<<8) /* VMEbus SW IRQ Level 2 */ -#define TSI148_LCSR_VICR_IRQL_3 (3<<8) /* VMEbus SW IRQ Level 3 */ -#define TSI148_LCSR_VICR_IRQL_4 (4<<8) /* VMEbus SW IRQ Level 4 */ -#define TSI148_LCSR_VICR_IRQL_5 (5<<8) /* VMEbus SW IRQ Level 5 */ -#define TSI148_LCSR_VICR_IRQL_6 (6<<8) /* VMEbus SW IRQ Level 6 */ -#define TSI148_LCSR_VICR_IRQL_7 (7<<8) /* VMEbus SW IRQ Level 7 */ - -static const int TSI148_LCSR_VICR_IRQL[8] = { 0, TSI148_LCSR_VICR_IRQL_1, - TSI148_LCSR_VICR_IRQL_2, TSI148_LCSR_VICR_IRQL_3, - TSI148_LCSR_VICR_IRQL_4, TSI148_LCSR_VICR_IRQL_5, - TSI148_LCSR_VICR_IRQL_6, TSI148_LCSR_VICR_IRQL_7 }; - -#define TSI148_LCSR_VICR_STID_M (0xFF<<0) /* Status/ID Mask */ - -/* - * Interrupt Enable Register CRG + $440 - */ -#define TSI148_LCSR_INTEN_DMA1EN (1<<25) /* DMAC 1 */ -#define TSI148_LCSR_INTEN_DMA0EN (1<<24) /* DMAC 0 */ -#define TSI148_LCSR_INTEN_LM3EN (1<<23) /* Location Monitor 3 */ -#define TSI148_LCSR_INTEN_LM2EN (1<<22) /* Location Monitor 2 */ -#define TSI148_LCSR_INTEN_LM1EN (1<<21) /* Location Monitor 1 */ -#define TSI148_LCSR_INTEN_LM0EN (1<<20) /* Location Monitor 0 */ -#define TSI148_LCSR_INTEN_MB3EN (1<<19) /* Mail Box 3 */ -#define TSI148_LCSR_INTEN_MB2EN (1<<18) /* Mail Box 2 */ -#define TSI148_LCSR_INTEN_MB1EN (1<<17) /* Mail Box 1 */ -#define TSI148_LCSR_INTEN_MB0EN (1<<16) /* Mail Box 0 */ -#define TSI148_LCSR_INTEN_PERREN (1<<13) /* PCI/X Error */ -#define TSI148_LCSR_INTEN_VERREN (1<<12) /* VMEbus Error */ -#define TSI148_LCSR_INTEN_VIEEN (1<<11) /* VMEbus IRQ Edge */ -#define TSI148_LCSR_INTEN_IACKEN (1<<10) /* IACK */ -#define TSI148_LCSR_INTEN_SYSFLEN (1<<9) /* System Fail */ -#define TSI148_LCSR_INTEN_ACFLEN (1<<8) /* AC Fail */ -#define TSI148_LCSR_INTEN_IRQ7EN (1<<7) /* IRQ7 */ -#define TSI148_LCSR_INTEN_IRQ6EN (1<<6) /* IRQ6 */ -#define TSI148_LCSR_INTEN_IRQ5EN (1<<5) /* IRQ5 */ -#define TSI148_LCSR_INTEN_IRQ4EN (1<<4) /* IRQ4 */ -#define TSI148_LCSR_INTEN_IRQ3EN (1<<3) /* IRQ3 */ -#define TSI148_LCSR_INTEN_IRQ2EN (1<<2) /* IRQ2 */ -#define TSI148_LCSR_INTEN_IRQ1EN (1<<1) /* IRQ1 */ - -static const int TSI148_LCSR_INTEN_LMEN[4] = { TSI148_LCSR_INTEN_LM0EN, - TSI148_LCSR_INTEN_LM1EN, - TSI148_LCSR_INTEN_LM2EN, - TSI148_LCSR_INTEN_LM3EN }; - -static const int TSI148_LCSR_INTEN_IRQEN[7] = { TSI148_LCSR_INTEN_IRQ1EN, - TSI148_LCSR_INTEN_IRQ2EN, - TSI148_LCSR_INTEN_IRQ3EN, - TSI148_LCSR_INTEN_IRQ4EN, - TSI148_LCSR_INTEN_IRQ5EN, - TSI148_LCSR_INTEN_IRQ6EN, - TSI148_LCSR_INTEN_IRQ7EN }; - -/* - * Interrupt Enable Out Register CRG + $444 - */ -#define TSI148_LCSR_INTEO_DMA1EO (1<<25) /* DMAC 1 */ -#define TSI148_LCSR_INTEO_DMA0EO (1<<24) /* DMAC 0 */ -#define TSI148_LCSR_INTEO_LM3EO (1<<23) /* Loc Monitor 3 */ -#define TSI148_LCSR_INTEO_LM2EO (1<<22) /* Loc Monitor 2 */ -#define TSI148_LCSR_INTEO_LM1EO (1<<21) /* Loc Monitor 1 */ -#define TSI148_LCSR_INTEO_LM0EO (1<<20) /* Location Monitor 0 */ -#define TSI148_LCSR_INTEO_MB3EO (1<<19) /* Mail Box 3 */ -#define TSI148_LCSR_INTEO_MB2EO (1<<18) /* Mail Box 2 */ -#define TSI148_LCSR_INTEO_MB1EO (1<<17) /* Mail Box 1 */ -#define TSI148_LCSR_INTEO_MB0EO (1<<16) /* Mail Box 0 */ -#define TSI148_LCSR_INTEO_PERREO (1<<13) /* PCI/X Error */ -#define TSI148_LCSR_INTEO_VERREO (1<<12) /* VMEbus Error */ -#define TSI148_LCSR_INTEO_VIEEO (1<<11) /* VMEbus IRQ Edge */ -#define TSI148_LCSR_INTEO_IACKEO (1<<10) /* IACK */ -#define TSI148_LCSR_INTEO_SYSFLEO (1<<9) /* System Fail */ -#define TSI148_LCSR_INTEO_ACFLEO (1<<8) /* AC Fail */ -#define TSI148_LCSR_INTEO_IRQ7EO (1<<7) /* IRQ7 */ -#define TSI148_LCSR_INTEO_IRQ6EO (1<<6) /* IRQ6 */ -#define TSI148_LCSR_INTEO_IRQ5EO (1<<5) /* IRQ5 */ -#define TSI148_LCSR_INTEO_IRQ4EO (1<<4) /* IRQ4 */ -#define TSI148_LCSR_INTEO_IRQ3EO (1<<3) /* IRQ3 */ -#define TSI148_LCSR_INTEO_IRQ2EO (1<<2) /* IRQ2 */ -#define TSI148_LCSR_INTEO_IRQ1EO (1<<1) /* IRQ1 */ - -static const int TSI148_LCSR_INTEO_LMEO[4] = { TSI148_LCSR_INTEO_LM0EO, - TSI148_LCSR_INTEO_LM1EO, - TSI148_LCSR_INTEO_LM2EO, - TSI148_LCSR_INTEO_LM3EO }; - -static const int TSI148_LCSR_INTEO_IRQEO[7] = { TSI148_LCSR_INTEO_IRQ1EO, - TSI148_LCSR_INTEO_IRQ2EO, - TSI148_LCSR_INTEO_IRQ3EO, - TSI148_LCSR_INTEO_IRQ4EO, - TSI148_LCSR_INTEO_IRQ5EO, - TSI148_LCSR_INTEO_IRQ6EO, - TSI148_LCSR_INTEO_IRQ7EO }; - -/* - * Interrupt Status Register CRG + $448 - */ -#define TSI148_LCSR_INTS_DMA1S (1<<25) /* DMA 1 */ -#define TSI148_LCSR_INTS_DMA0S (1<<24) /* DMA 0 */ -#define TSI148_LCSR_INTS_LM3S (1<<23) /* Location Monitor 3 */ -#define TSI148_LCSR_INTS_LM2S (1<<22) /* Location Monitor 2 */ -#define TSI148_LCSR_INTS_LM1S (1<<21) /* Location Monitor 1 */ -#define TSI148_LCSR_INTS_LM0S (1<<20) /* Location Monitor 0 */ -#define TSI148_LCSR_INTS_MB3S (1<<19) /* Mail Box 3 */ -#define TSI148_LCSR_INTS_MB2S (1<<18) /* Mail Box 2 */ -#define TSI148_LCSR_INTS_MB1S (1<<17) /* Mail Box 1 */ -#define TSI148_LCSR_INTS_MB0S (1<<16) /* Mail Box 0 */ -#define TSI148_LCSR_INTS_PERRS (1<<13) /* PCI/X Error */ -#define TSI148_LCSR_INTS_VERRS (1<<12) /* VMEbus Error */ -#define TSI148_LCSR_INTS_VIES (1<<11) /* VMEbus IRQ Edge */ -#define TSI148_LCSR_INTS_IACKS (1<<10) /* IACK */ -#define TSI148_LCSR_INTS_SYSFLS (1<<9) /* System Fail */ -#define TSI148_LCSR_INTS_ACFLS (1<<8) /* AC Fail */ -#define TSI148_LCSR_INTS_IRQ7S (1<<7) /* IRQ7 */ -#define TSI148_LCSR_INTS_IRQ6S (1<<6) /* IRQ6 */ -#define TSI148_LCSR_INTS_IRQ5S (1<<5) /* IRQ5 */ -#define TSI148_LCSR_INTS_IRQ4S (1<<4) /* IRQ4 */ -#define TSI148_LCSR_INTS_IRQ3S (1<<3) /* IRQ3 */ -#define TSI148_LCSR_INTS_IRQ2S (1<<2) /* IRQ2 */ -#define TSI148_LCSR_INTS_IRQ1S (1<<1) /* IRQ1 */ - -static const int TSI148_LCSR_INTS_LMS[4] = { TSI148_LCSR_INTS_LM0S, - TSI148_LCSR_INTS_LM1S, - TSI148_LCSR_INTS_LM2S, - TSI148_LCSR_INTS_LM3S }; - -static const int TSI148_LCSR_INTS_MBS[4] = { TSI148_LCSR_INTS_MB0S, - TSI148_LCSR_INTS_MB1S, - TSI148_LCSR_INTS_MB2S, - TSI148_LCSR_INTS_MB3S }; - -/* - * Interrupt Clear Register CRG + $44C - */ -#define TSI148_LCSR_INTC_DMA1C (1<<25) /* DMA 1 */ -#define TSI148_LCSR_INTC_DMA0C (1<<24) /* DMA 0 */ -#define TSI148_LCSR_INTC_LM3C (1<<23) /* Location Monitor 3 */ -#define TSI148_LCSR_INTC_LM2C (1<<22) /* Location Monitor 2 */ -#define TSI148_LCSR_INTC_LM1C (1<<21) /* Location Monitor 1 */ -#define TSI148_LCSR_INTC_LM0C (1<<20) /* Location Monitor 0 */ -#define TSI148_LCSR_INTC_MB3C (1<<19) /* Mail Box 3 */ -#define TSI148_LCSR_INTC_MB2C (1<<18) /* Mail Box 2 */ -#define TSI148_LCSR_INTC_MB1C (1<<17) /* Mail Box 1 */ -#define TSI148_LCSR_INTC_MB0C (1<<16) /* Mail Box 0 */ -#define TSI148_LCSR_INTC_PERRC (1<<13) /* VMEbus Error */ -#define TSI148_LCSR_INTC_VERRC (1<<12) /* VMEbus Access Time-out */ -#define TSI148_LCSR_INTC_VIEC (1<<11) /* VMEbus IRQ Edge */ -#define TSI148_LCSR_INTC_IACKC (1<<10) /* IACK */ -#define TSI148_LCSR_INTC_SYSFLC (1<<9) /* System Fail */ -#define TSI148_LCSR_INTC_ACFLC (1<<8) /* AC Fail */ - -static const int TSI148_LCSR_INTC_LMC[4] = { TSI148_LCSR_INTC_LM0C, - TSI148_LCSR_INTC_LM1C, - TSI148_LCSR_INTC_LM2C, - TSI148_LCSR_INTC_LM3C }; - -static const int TSI148_LCSR_INTC_MBC[4] = { TSI148_LCSR_INTC_MB0C, - TSI148_LCSR_INTC_MB1C, - TSI148_LCSR_INTC_MB2C, - TSI148_LCSR_INTC_MB3C }; - -/* - * Interrupt Map Register 1 CRG + $458 - */ -#define TSI148_LCSR_INTM1_DMA1M_M (3<<18) /* DMA 1 */ -#define TSI148_LCSR_INTM1_DMA0M_M (3<<16) /* DMA 0 */ -#define TSI148_LCSR_INTM1_LM3M_M (3<<14) /* Location Monitor 3 */ -#define TSI148_LCSR_INTM1_LM2M_M (3<<12) /* Location Monitor 2 */ -#define TSI148_LCSR_INTM1_LM1M_M (3<<10) /* Location Monitor 1 */ -#define TSI148_LCSR_INTM1_LM0M_M (3<<8) /* Location Monitor 0 */ -#define TSI148_LCSR_INTM1_MB3M_M (3<<6) /* Mail Box 3 */ -#define TSI148_LCSR_INTM1_MB2M_M (3<<4) /* Mail Box 2 */ -#define TSI148_LCSR_INTM1_MB1M_M (3<<2) /* Mail Box 1 */ -#define TSI148_LCSR_INTM1_MB0M_M (3<<0) /* Mail Box 0 */ - -/* - * Interrupt Map Register 2 CRG + $45C - */ -#define TSI148_LCSR_INTM2_PERRM_M (3<<26) /* PCI Bus Error */ -#define TSI148_LCSR_INTM2_VERRM_M (3<<24) /* VMEbus Error */ -#define TSI148_LCSR_INTM2_VIEM_M (3<<22) /* VMEbus IRQ Edge */ -#define TSI148_LCSR_INTM2_IACKM_M (3<<20) /* IACK */ -#define TSI148_LCSR_INTM2_SYSFLM_M (3<<18) /* System Fail */ -#define TSI148_LCSR_INTM2_ACFLM_M (3<<16) /* AC Fail */ -#define TSI148_LCSR_INTM2_IRQ7M_M (3<<14) /* IRQ7 */ -#define TSI148_LCSR_INTM2_IRQ6M_M (3<<12) /* IRQ6 */ -#define TSI148_LCSR_INTM2_IRQ5M_M (3<<10) /* IRQ5 */ -#define TSI148_LCSR_INTM2_IRQ4M_M (3<<8) /* IRQ4 */ -#define TSI148_LCSR_INTM2_IRQ3M_M (3<<6) /* IRQ3 */ -#define TSI148_LCSR_INTM2_IRQ2M_M (3<<4) /* IRQ2 */ -#define TSI148_LCSR_INTM2_IRQ1M_M (3<<2) /* IRQ1 */ - -/* - * DMA Control (0-1) Registers CRG + $500 - */ -#define TSI148_LCSR_DCTL_ABT (1<<27) /* Abort */ -#define TSI148_LCSR_DCTL_PAU (1<<26) /* Pause */ -#define TSI148_LCSR_DCTL_DGO (1<<25) /* DMA Go */ - -#define TSI148_LCSR_DCTL_MOD (1<<23) /* Mode */ - -#define TSI148_LCSR_DCTL_VBKS_M (7<<12) /* VMEbus block Size MASK */ -#define TSI148_LCSR_DCTL_VBKS_32 (0<<12) /* VMEbus block Size 32 */ -#define TSI148_LCSR_DCTL_VBKS_64 (1<<12) /* VMEbus block Size 64 */ -#define TSI148_LCSR_DCTL_VBKS_128 (2<<12) /* VMEbus block Size 128 */ -#define TSI148_LCSR_DCTL_VBKS_256 (3<<12) /* VMEbus block Size 256 */ -#define TSI148_LCSR_DCTL_VBKS_512 (4<<12) /* VMEbus block Size 512 */ -#define TSI148_LCSR_DCTL_VBKS_1024 (5<<12) /* VMEbus block Size 1024 */ -#define TSI148_LCSR_DCTL_VBKS_2048 (6<<12) /* VMEbus block Size 2048 */ -#define TSI148_LCSR_DCTL_VBKS_4096 (7<<12) /* VMEbus block Size 4096 */ - -#define TSI148_LCSR_DCTL_VBOT_M (7<<8) /* VMEbus back-off MASK */ -#define TSI148_LCSR_DCTL_VBOT_0 (0<<8) /* VMEbus back-off 0us */ -#define TSI148_LCSR_DCTL_VBOT_1 (1<<8) /* VMEbus back-off 1us */ -#define TSI148_LCSR_DCTL_VBOT_2 (2<<8) /* VMEbus back-off 2us */ -#define TSI148_LCSR_DCTL_VBOT_4 (3<<8) /* VMEbus back-off 4us */ -#define TSI148_LCSR_DCTL_VBOT_8 (4<<8) /* VMEbus back-off 8us */ -#define TSI148_LCSR_DCTL_VBOT_16 (5<<8) /* VMEbus back-off 16us */ -#define TSI148_LCSR_DCTL_VBOT_32 (6<<8) /* VMEbus back-off 32us */ -#define TSI148_LCSR_DCTL_VBOT_64 (7<<8) /* VMEbus back-off 64us */ - -#define TSI148_LCSR_DCTL_PBKS_M (7<<4) /* PCI block size MASK */ -#define TSI148_LCSR_DCTL_PBKS_32 (0<<4) /* PCI block size 32 bytes */ -#define TSI148_LCSR_DCTL_PBKS_64 (1<<4) /* PCI block size 64 bytes */ -#define TSI148_LCSR_DCTL_PBKS_128 (2<<4) /* PCI block size 128 bytes */ -#define TSI148_LCSR_DCTL_PBKS_256 (3<<4) /* PCI block size 256 bytes */ -#define TSI148_LCSR_DCTL_PBKS_512 (4<<4) /* PCI block size 512 bytes */ -#define TSI148_LCSR_DCTL_PBKS_1024 (5<<4) /* PCI block size 1024 bytes */ -#define TSI148_LCSR_DCTL_PBKS_2048 (6<<4) /* PCI block size 2048 bytes */ -#define TSI148_LCSR_DCTL_PBKS_4096 (7<<4) /* PCI block size 4096 bytes */ - -#define TSI148_LCSR_DCTL_PBOT_M (7<<0) /* PCI back off MASK */ -#define TSI148_LCSR_DCTL_PBOT_0 (0<<0) /* PCI back off 0us */ -#define TSI148_LCSR_DCTL_PBOT_1 (1<<0) /* PCI back off 1us */ -#define TSI148_LCSR_DCTL_PBOT_2 (2<<0) /* PCI back off 2us */ -#define TSI148_LCSR_DCTL_PBOT_4 (3<<0) /* PCI back off 3us */ -#define TSI148_LCSR_DCTL_PBOT_8 (4<<0) /* PCI back off 4us */ -#define TSI148_LCSR_DCTL_PBOT_16 (5<<0) /* PCI back off 8us */ -#define TSI148_LCSR_DCTL_PBOT_32 (6<<0) /* PCI back off 16us */ -#define TSI148_LCSR_DCTL_PBOT_64 (7<<0) /* PCI back off 32us */ - -/* - * DMA Status Registers (0-1) CRG + $504 - */ -#define TSI148_LCSR_DSTA_SMA (1<<31) /* PCI Signalled Master Abt */ -#define TSI148_LCSR_DSTA_RTA (1<<30) /* PCI Received Target Abt */ -#define TSI148_LCSR_DSTA_MRC (1<<29) /* PCI Max Retry Count */ -#define TSI148_LCSR_DSTA_VBE (1<<28) /* VMEbus error */ -#define TSI148_LCSR_DSTA_ABT (1<<27) /* Abort */ -#define TSI148_LCSR_DSTA_PAU (1<<26) /* Pause */ -#define TSI148_LCSR_DSTA_DON (1<<25) /* Done */ -#define TSI148_LCSR_DSTA_BSY (1<<24) /* Busy */ - -/* - * DMA Current Link Address Lower (0-1) - */ -#define TSI148_LCSR_DCLAL_M (0x3FFFFFF<<6) /* Mask */ - -/* - * DMA Source Attribute (0-1) Reg - */ -#define TSI148_LCSR_DSAT_TYP_M (3<<28) /* Source Bus Type */ -#define TSI148_LCSR_DSAT_TYP_PCI (0<<28) /* PCI Bus */ -#define TSI148_LCSR_DSAT_TYP_VME (1<<28) /* VMEbus */ -#define TSI148_LCSR_DSAT_TYP_PAT (2<<28) /* Data Pattern */ - -#define TSI148_LCSR_DSAT_PSZ (1<<25) /* Pattern Size */ -#define TSI148_LCSR_DSAT_NIN (1<<24) /* No Increment */ - -#define TSI148_LCSR_DSAT_2eSSTM_M (3<<11) /* 2eSST Trans Rate Mask */ -#define TSI148_LCSR_DSAT_2eSSTM_160 (0<<11) /* 160 MB/s */ -#define TSI148_LCSR_DSAT_2eSSTM_267 (1<<11) /* 267 MB/s */ -#define TSI148_LCSR_DSAT_2eSSTM_320 (2<<11) /* 320 MB/s */ - -#define TSI148_LCSR_DSAT_TM_M (7<<8) /* Bus Transfer Protocol Mask */ -#define TSI148_LCSR_DSAT_TM_SCT (0<<8) /* SCT */ -#define TSI148_LCSR_DSAT_TM_BLT (1<<8) /* BLT */ -#define TSI148_LCSR_DSAT_TM_MBLT (2<<8) /* MBLT */ -#define TSI148_LCSR_DSAT_TM_2eVME (3<<8) /* 2eVME */ -#define TSI148_LCSR_DSAT_TM_2eSST (4<<8) /* 2eSST */ -#define TSI148_LCSR_DSAT_TM_2eSSTB (5<<8) /* 2eSST Broadcast */ - -#define TSI148_LCSR_DSAT_DBW_M (3<<6) /* Max Data Width MASK */ -#define TSI148_LCSR_DSAT_DBW_16 (0<<6) /* 16 Bits */ -#define TSI148_LCSR_DSAT_DBW_32 (1<<6) /* 32 Bits */ - -#define TSI148_LCSR_DSAT_SUP (1<<5) /* Supervisory Mode */ -#define TSI148_LCSR_DSAT_PGM (1<<4) /* Program Mode */ - -#define TSI148_LCSR_DSAT_AMODE_M (0xf<<0) /* Address Space Mask */ -#define TSI148_LCSR_DSAT_AMODE_A16 (0<<0) /* A16 */ -#define TSI148_LCSR_DSAT_AMODE_A24 (1<<0) /* A24 */ -#define TSI148_LCSR_DSAT_AMODE_A32 (2<<0) /* A32 */ -#define TSI148_LCSR_DSAT_AMODE_A64 (4<<0) /* A64 */ -#define TSI148_LCSR_DSAT_AMODE_CRCSR (5<<0) /* CR/CSR */ -#define TSI148_LCSR_DSAT_AMODE_USER1 (8<<0) /* User1 */ -#define TSI148_LCSR_DSAT_AMODE_USER2 (9<<0) /* User2 */ -#define TSI148_LCSR_DSAT_AMODE_USER3 (0xa<<0) /* User3 */ -#define TSI148_LCSR_DSAT_AMODE_USER4 (0xb<<0) /* User4 */ - -/* - * DMA Destination Attribute Registers (0-1) - */ -#define TSI148_LCSR_DDAT_TYP_PCI (0<<28) /* Destination PCI Bus */ -#define TSI148_LCSR_DDAT_TYP_VME (1<<28) /* Destination VMEbus */ - -#define TSI148_LCSR_DDAT_2eSSTM_M (3<<11) /* 2eSST Transfer Rate Mask */ -#define TSI148_LCSR_DDAT_2eSSTM_160 (0<<11) /* 160 MB/s */ -#define TSI148_LCSR_DDAT_2eSSTM_267 (1<<11) /* 267 MB/s */ -#define TSI148_LCSR_DDAT_2eSSTM_320 (2<<11) /* 320 MB/s */ - -#define TSI148_LCSR_DDAT_TM_M (7<<8) /* Bus Transfer Protocol Mask */ -#define TSI148_LCSR_DDAT_TM_SCT (0<<8) /* SCT */ -#define TSI148_LCSR_DDAT_TM_BLT (1<<8) /* BLT */ -#define TSI148_LCSR_DDAT_TM_MBLT (2<<8) /* MBLT */ -#define TSI148_LCSR_DDAT_TM_2eVME (3<<8) /* 2eVME */ -#define TSI148_LCSR_DDAT_TM_2eSST (4<<8) /* 2eSST */ -#define TSI148_LCSR_DDAT_TM_2eSSTB (5<<8) /* 2eSST Broadcast */ - -#define TSI148_LCSR_DDAT_DBW_M (3<<6) /* Max Data Width MASK */ -#define TSI148_LCSR_DDAT_DBW_16 (0<<6) /* 16 Bits */ -#define TSI148_LCSR_DDAT_DBW_32 (1<<6) /* 32 Bits */ - -#define TSI148_LCSR_DDAT_SUP (1<<5) /* Supervisory/User Access */ -#define TSI148_LCSR_DDAT_PGM (1<<4) /* Program/Data Access */ - -#define TSI148_LCSR_DDAT_AMODE_M (0xf<<0) /* Address Space Mask */ -#define TSI148_LCSR_DDAT_AMODE_A16 (0<<0) /* A16 */ -#define TSI148_LCSR_DDAT_AMODE_A24 (1<<0) /* A24 */ -#define TSI148_LCSR_DDAT_AMODE_A32 (2<<0) /* A32 */ -#define TSI148_LCSR_DDAT_AMODE_A64 (4<<0) /* A64 */ -#define TSI148_LCSR_DDAT_AMODE_CRCSR (5<<0) /* CRC/SR */ -#define TSI148_LCSR_DDAT_AMODE_USER1 (8<<0) /* User1 */ -#define TSI148_LCSR_DDAT_AMODE_USER2 (9<<0) /* User2 */ -#define TSI148_LCSR_DDAT_AMODE_USER3 (0xa<<0) /* User3 */ -#define TSI148_LCSR_DDAT_AMODE_USER4 (0xb<<0) /* User4 */ - -/* - * DMA Next Link Address Lower - */ -#define TSI148_LCSR_DNLAL_DNLAL_M (0x3FFFFFF<<6) /* Address Mask */ -#define TSI148_LCSR_DNLAL_LLA (1<<0) /* Last Link Address Indicator */ - -/* - * DMA 2eSST Broadcast Select - */ -#define TSI148_LCSR_DBS_M (0x1FFFFF<<0) /* Mask */ - -/* - * GCSR Register Group - */ - -/* - * GCSR Control and Status Register CRG + $604 - */ -#define TSI148_GCSR_GCTRL_LRST (1<<15) /* Local Reset */ -#define TSI148_GCSR_GCTRL_SFAILEN (1<<14) /* System Fail enable */ -#define TSI148_GCSR_GCTRL_BDFAILS (1<<13) /* Board Fail Status */ -#define TSI148_GCSR_GCTRL_SCON (1<<12) /* System Copntroller */ -#define TSI148_GCSR_GCTRL_MEN (1<<11) /* Module Enable (READY) */ - -#define TSI148_GCSR_GCTRL_LMI3S (1<<7) /* Loc Monitor 3 Int Status */ -#define TSI148_GCSR_GCTRL_LMI2S (1<<6) /* Loc Monitor 2 Int Status */ -#define TSI148_GCSR_GCTRL_LMI1S (1<<5) /* Loc Monitor 1 Int Status */ -#define TSI148_GCSR_GCTRL_LMI0S (1<<4) /* Loc Monitor 0 Int Status */ -#define TSI148_GCSR_GCTRL_MBI3S (1<<3) /* Mail box 3 Int Status */ -#define TSI148_GCSR_GCTRL_MBI2S (1<<2) /* Mail box 2 Int Status */ -#define TSI148_GCSR_GCTRL_MBI1S (1<<1) /* Mail box 1 Int Status */ -#define TSI148_GCSR_GCTRL_MBI0S (1<<0) /* Mail box 0 Int Status */ - -#define TSI148_GCSR_GAP (1<<5) /* Geographic Addr Parity */ -#define TSI148_GCSR_GA_M (0x1F<<0) /* Geographic Address Mask */ - -/* - * CR/CSR Register Group - */ - -/* - * CR/CSR Bit Clear Register CRG + $FF4 - */ -#define TSI148_CRCSR_CSRBCR_LRSTC (1<<7) /* Local Reset Clear */ -#define TSI148_CRCSR_CSRBCR_SFAILC (1<<6) /* System Fail Enable Clear */ -#define TSI148_CRCSR_CSRBCR_BDFAILS (1<<5) /* Board Fail Status */ -#define TSI148_CRCSR_CSRBCR_MENC (1<<4) /* Module Enable Clear */ -#define TSI148_CRCSR_CSRBCR_BERRSC (1<<3) /* Bus Error Status Clear */ - -/* - * CR/CSR Bit Set Register CRG+$FF8 - */ -#define TSI148_CRCSR_CSRBSR_LISTS (1<<7) /* Local Reset Clear */ -#define TSI148_CRCSR_CSRBSR_SFAILS (1<<6) /* System Fail Enable Clear */ -#define TSI148_CRCSR_CSRBSR_BDFAILS (1<<5) /* Board Fail Status */ -#define TSI148_CRCSR_CSRBSR_MENS (1<<4) /* Module Enable Clear */ -#define TSI148_CRCSR_CSRBSR_BERRS (1<<3) /* Bus Error Status Clear */ - -/* - * CR/CSR Base Address Register CRG + FFC - */ -#define TSI148_CRCSR_CBAR_M (0x1F<<3) /* Mask */ - -#endif /* TSI148_H */ diff --git a/drivers/staging/vme/devices/Kconfig b/drivers/staging/vme/devices/Kconfig index ca5ba89e2d8..8e8bbb1dcd9 100644 --- a/drivers/staging/vme/devices/Kconfig +++ b/drivers/staging/vme/devices/Kconfig @@ -2,7 +2,21 @@ comment "VME Device Drivers" config VME_USER tristate "VME user space access driver" + depends on STAGING help If you say Y here you want to be able to access a limited number of VME windows in a manner at least semi-compatible with the interface - provided with the original driver at http://vmelinux.org/. + provided with the original driver at <http://www.vmelinux.org/>. + +config VME_PIO2 + tristate "GE PIO2 VME" + depends on STAGING && GPIOLIB + help + Say Y here to include support for the GE PIO2. The PIO2 is a 6U VME + slave card, implementing 32 solid-state relay switched IO lines, in + 4 groups of 8. Each bank of IO lines is built to function as input, + output or both depending on the variant of the card. + + To compile this driver as a module, choose M here. The module will + be called vme_pio2. If unsure, say N. + diff --git a/drivers/staging/vme/devices/Makefile b/drivers/staging/vme/devices/Makefile index 459742a7528..172512cb5db 100644 --- a/drivers/staging/vme/devices/Makefile +++ b/drivers/staging/vme/devices/Makefile @@ -3,3 +3,6 @@ # obj-$(CONFIG_VME_USER) += vme_user.o + +vme_pio2-objs := vme_pio2_cntr.o vme_pio2_gpio.o vme_pio2_core.o +obj-$(CONFIG_VME_PIO2) += vme_pio2.o diff --git a/drivers/staging/vme/devices/vme_pio2.h b/drivers/staging/vme/devices/vme_pio2.h new file mode 100644 index 00000000000..d5d94c43c07 --- /dev/null +++ b/drivers/staging/vme/devices/vme_pio2.h @@ -0,0 +1,249 @@ +#ifndef _VME_PIO2_H_ +#define _VME_PIO2_H_ + +#define PIO2_CARDS_MAX 32 + +#define PIO2_VARIANT_LENGTH 5 + +#define PIO2_NUM_CHANNELS 32 +#define PIO2_NUM_IRQS 11 +#define PIO2_NUM_CNTRS 6 + +#define PIO2_REGS_SIZE 0x40 + +#define PIO2_REGS_DATA0 0x0 +#define PIO2_REGS_DATA1 0x1 +#define PIO2_REGS_DATA2 0x2 +#define PIO2_REGS_DATA3 0x3 + +static const int PIO2_REGS_DATA[4] = { PIO2_REGS_DATA0, PIO2_REGS_DATA1, + PIO2_REGS_DATA2, PIO2_REGS_DATA3 }; + +#define PIO2_REGS_INT_STAT0 0x8 +#define PIO2_REGS_INT_STAT1 0x9 +#define PIO2_REGS_INT_STAT2 0xa +#define PIO2_REGS_INT_STAT3 0xb + +static const int PIO2_REGS_INT_STAT[4] = { PIO2_REGS_INT_STAT0, + PIO2_REGS_INT_STAT1, + PIO2_REGS_INT_STAT2, + PIO2_REGS_INT_STAT3 }; + +#define PIO2_REGS_INT_STAT_CNTR 0xc +#define PIO2_REGS_INT_MASK0 0x10 +#define PIO2_REGS_INT_MASK1 0x11 +#define PIO2_REGS_INT_MASK2 0x12 +#define PIO2_REGS_INT_MASK3 0x13 +#define PIO2_REGS_INT_MASK4 0x14 +#define PIO2_REGS_INT_MASK5 0x15 +#define PIO2_REGS_INT_MASK6 0x16 +#define PIO2_REGS_INT_MASK7 0x17 + +static const int PIO2_REGS_INT_MASK[8] = { PIO2_REGS_INT_MASK0, + PIO2_REGS_INT_MASK1, + PIO2_REGS_INT_MASK2, + PIO2_REGS_INT_MASK3, + PIO2_REGS_INT_MASK4, + PIO2_REGS_INT_MASK5, + PIO2_REGS_INT_MASK6, + PIO2_REGS_INT_MASK7 }; + + + +#define PIO2_REGS_CTRL 0x18 +#define PIO2_REGS_VME_VECTOR 0x19 +#define PIO2_REGS_CNTR0 0x20 +#define PIO2_REGS_CNTR1 0x22 +#define PIO2_REGS_CNTR2 0x24 +#define PIO2_REGS_CTRL_WRD0 0x26 +#define PIO2_REGS_CNTR3 0x28 +#define PIO2_REGS_CNTR4 0x2a +#define PIO2_REGS_CNTR5 0x2c +#define PIO2_REGS_CTRL_WRD1 0x2e + +#define PIO2_REGS_ID 0x30 + + +/* PIO2_REGS_DATAx (0x0 - 0x3) */ + +static const int PIO2_CHANNEL_BANK[32] = { 0, 0, 0, 0, 0, 0, 0, 0, + 1, 1, 1, 1, 1, 1, 1, 1, + 2, 2, 2, 2, 2, 2, 2, 2, + 3, 3, 3, 3, 3, 3, 3, 3 }; + +#define PIO2_CHANNEL0_BIT (1 << 0) +#define PIO2_CHANNEL1_BIT (1 << 1) +#define PIO2_CHANNEL2_BIT (1 << 2) +#define PIO2_CHANNEL3_BIT (1 << 3) +#define PIO2_CHANNEL4_BIT (1 << 4) +#define PIO2_CHANNEL5_BIT (1 << 5) +#define PIO2_CHANNEL6_BIT (1 << 6) +#define PIO2_CHANNEL7_BIT (1 << 7) +#define PIO2_CHANNEL8_BIT (1 << 0) +#define PIO2_CHANNEL9_BIT (1 << 1) +#define PIO2_CHANNEL10_BIT (1 << 2) +#define PIO2_CHANNEL11_BIT (1 << 3) +#define PIO2_CHANNEL12_BIT (1 << 4) +#define PIO2_CHANNEL13_BIT (1 << 5) +#define PIO2_CHANNEL14_BIT (1 << 6) +#define PIO2_CHANNEL15_BIT (1 << 7) +#define PIO2_CHANNEL16_BIT (1 << 0) +#define PIO2_CHANNEL17_BIT (1 << 1) +#define PIO2_CHANNEL18_BIT (1 << 2) +#define PIO2_CHANNEL19_BIT (1 << 3) +#define PIO2_CHANNEL20_BIT (1 << 4) +#define PIO2_CHANNEL21_BIT (1 << 5) +#define PIO2_CHANNEL22_BIT (1 << 6) +#define PIO2_CHANNEL23_BIT (1 << 7) +#define PIO2_CHANNEL24_BIT (1 << 0) +#define PIO2_CHANNEL25_BIT (1 << 1) +#define PIO2_CHANNEL26_BIT (1 << 2) +#define PIO2_CHANNEL27_BIT (1 << 3) +#define PIO2_CHANNEL28_BIT (1 << 4) +#define PIO2_CHANNEL29_BIT (1 << 5) +#define PIO2_CHANNEL30_BIT (1 << 6) +#define PIO2_CHANNEL31_BIT (1 << 7) + +static const int PIO2_CHANNEL_BIT[32] = { PIO2_CHANNEL0_BIT, PIO2_CHANNEL1_BIT, + PIO2_CHANNEL2_BIT, PIO2_CHANNEL3_BIT, + PIO2_CHANNEL4_BIT, PIO2_CHANNEL5_BIT, + PIO2_CHANNEL6_BIT, PIO2_CHANNEL7_BIT, + PIO2_CHANNEL8_BIT, PIO2_CHANNEL9_BIT, + PIO2_CHANNEL10_BIT, PIO2_CHANNEL11_BIT, + PIO2_CHANNEL12_BIT, PIO2_CHANNEL13_BIT, + PIO2_CHANNEL14_BIT, PIO2_CHANNEL15_BIT, + PIO2_CHANNEL16_BIT, PIO2_CHANNEL17_BIT, + PIO2_CHANNEL18_BIT, PIO2_CHANNEL19_BIT, + PIO2_CHANNEL20_BIT, PIO2_CHANNEL21_BIT, + PIO2_CHANNEL22_BIT, PIO2_CHANNEL23_BIT, + PIO2_CHANNEL24_BIT, PIO2_CHANNEL25_BIT, + PIO2_CHANNEL26_BIT, PIO2_CHANNEL27_BIT, + PIO2_CHANNEL28_BIT, PIO2_CHANNEL29_BIT, + PIO2_CHANNEL30_BIT, PIO2_CHANNEL31_BIT + }; + +/* PIO2_REGS_INT_STAT_CNTR (0xc) */ +#define PIO2_COUNTER0 (1 << 0) +#define PIO2_COUNTER1 (1 << 1) +#define PIO2_COUNTER2 (1 << 2) +#define PIO2_COUNTER3 (1 << 3) +#define PIO2_COUNTER4 (1 << 4) +#define PIO2_COUNTER5 (1 << 5) + +static const int PIO2_COUNTER[6] = { PIO2_COUNTER0, PIO2_COUNTER1, + PIO2_COUNTER2, PIO2_COUNTER3, + PIO2_COUNTER4, PIO2_COUNTER5 }; + +/* PIO2_REGS_CTRL (0x18) */ +#define PIO2_VME_INT_MASK 0x7 +#define PIO2_LED (1 << 6) +#define PIO2_LOOP (1 << 7) + +/* PIO2_REGS_VME_VECTOR (0x19) */ +#define PIO2_VME_VECTOR_SPUR 0x0 +#define PIO2_VME_VECTOR_BANK0 0x1 +#define PIO2_VME_VECTOR_BANK1 0x2 +#define PIO2_VME_VECTOR_BANK2 0x3 +#define PIO2_VME_VECTOR_BANK3 0x4 +#define PIO2_VME_VECTOR_CNTR0 0x5 +#define PIO2_VME_VECTOR_CNTR1 0x6 +#define PIO2_VME_VECTOR_CNTR2 0x7 +#define PIO2_VME_VECTOR_CNTR3 0x8 +#define PIO2_VME_VECTOR_CNTR4 0x9 +#define PIO2_VME_VECTOR_CNTR5 0xa + +#define PIO2_VME_VECTOR_MASK 0xf0 + +static const int PIO2_VECTOR_BANK[4] = { PIO2_VME_VECTOR_BANK0, + PIO2_VME_VECTOR_BANK1, + PIO2_VME_VECTOR_BANK2, + PIO2_VME_VECTOR_BANK3 }; + +static const int PIO2_VECTOR_CNTR[6] = { PIO2_VME_VECTOR_CNTR0, + PIO2_VME_VECTOR_CNTR1, + PIO2_VME_VECTOR_CNTR2, + PIO2_VME_VECTOR_CNTR3, + PIO2_VME_VECTOR_CNTR4, + PIO2_VME_VECTOR_CNTR5 }; + +/* PIO2_REGS_CNTRx (0x20 - 0x24 & 0x28 - 0x2c) */ + +static const int PIO2_CNTR_DATA[6] = { PIO2_REGS_CNTR0, PIO2_REGS_CNTR1, + PIO2_REGS_CNTR2, PIO2_REGS_CNTR3, + PIO2_REGS_CNTR4, PIO2_REGS_CNTR5 }; + +/* PIO2_REGS_CTRL_WRDx (0x26 & 0x2e) */ + +static const int PIO2_CNTR_CTRL[6] = { PIO2_REGS_CTRL_WRD0, + PIO2_REGS_CTRL_WRD0, + PIO2_REGS_CTRL_WRD0, + PIO2_REGS_CTRL_WRD1, + PIO2_REGS_CTRL_WRD1, + PIO2_REGS_CTRL_WRD1 }; + +#define PIO2_CNTR_SC_DEV0 0 +#define PIO2_CNTR_SC_DEV1 (1 << 6) +#define PIO2_CNTR_SC_DEV2 (2 << 6) +#define PIO2_CNTR_SC_RDBACK (3 << 6) + +static const int PIO2_CNTR_SC_DEV[6] = { PIO2_CNTR_SC_DEV0, PIO2_CNTR_SC_DEV1, + PIO2_CNTR_SC_DEV2, PIO2_CNTR_SC_DEV0, + PIO2_CNTR_SC_DEV1, PIO2_CNTR_SC_DEV2 }; + +#define PIO2_CNTR_RW_LATCH 0 +#define PIO2_CNTR_RW_LSB (1 << 4) +#define PIO2_CNTR_RW_MSB (2 << 4) +#define PIO2_CNTR_RW_BOTH (3 << 4) + +#define PIO2_CNTR_MODE0 0 +#define PIO2_CNTR_MODE1 (1 << 1) +#define PIO2_CNTR_MODE2 (2 << 1) +#define PIO2_CNTR_MODE3 (3 << 1) +#define PIO2_CNTR_MODE4 (4 << 1) +#define PIO2_CNTR_MODE5 (5 << 1) + +#define PIO2_CNTR_BCD 1 + + + +enum pio2_bank_config { NOFIT, INPUT, OUTPUT, BOTH }; +enum pio2_int_config { NONE = 0, LOW2HIGH = 1, HIGH2LOW = 2, EITHER = 4 }; + +/* Bank configuration structure */ +struct pio2_io_bank { + enum pio2_bank_config config; + u8 value; + enum pio2_int_config irq[8]; +}; + +/* Counter configuration structure */ +struct pio2_cntr { + int mode; + int count; +}; + +struct pio2_card { + int id; + int bus; + long base; + int irq_vector; + int irq_level; + char variant[6]; + int led; + + struct vme_dev *vdev; + struct vme_resource *window; + + struct gpio_chip gc; + struct pio2_io_bank bank[4]; + + struct pio2_cntr cntr[6]; +}; + +int pio2_cntr_reset(struct pio2_card *); + +int pio2_gpio_reset(struct pio2_card *); +int pio2_gpio_init(struct pio2_card *); +void pio2_gpio_exit(struct pio2_card *); + +#endif /* _VME_PIO2_H_ */ diff --git a/drivers/staging/vme/devices/vme_pio2_cntr.c b/drivers/staging/vme/devices/vme_pio2_cntr.c new file mode 100644 index 00000000000..6335471faa3 --- /dev/null +++ b/drivers/staging/vme/devices/vme_pio2_cntr.c @@ -0,0 +1,71 @@ +/* + * GE PIO2 Counter Driver + * + * Author: Martyn Welch <martyn.welch@ge.com> + * Copyright 2009 GE Intelligent Platforms Embedded Systems, Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * The PIO-2 has 6 counters, currently this code just disables the interrupts + * and leaves them alone. + * + */ + +#include <linux/device.h> +#include <linux/types.h> +#include <linux/gpio.h> +#include <linux/vme.h> + +#include "vme_pio2.h" + +static int pio2_cntr_irq_set(struct pio2_card *card, int id) +{ + int retval; + u8 data; + + data = PIO2_CNTR_SC_DEV[id] | PIO2_CNTR_RW_BOTH | card->cntr[id].mode; + retval = vme_master_write(card->window, &data, 1, PIO2_CNTR_CTRL[id]); + if (retval < 0) + return retval; + + data = card->cntr[id].count & 0xFF; + retval = vme_master_write(card->window, &data, 1, PIO2_CNTR_DATA[id]); + if (retval < 0) + return retval; + + data = (card->cntr[id].count >> 8) & 0xFF; + retval = vme_master_write(card->window, &data, 1, PIO2_CNTR_DATA[id]); + if (retval < 0) + return retval; + + return 0; +} + +int pio2_cntr_reset(struct pio2_card *card) +{ + int i, retval = 0; + u8 reg; + + /* Clear down all timers */ + for (i = 0; i < 6; i++) { + card->cntr[i].mode = PIO2_CNTR_MODE5; + card->cntr[i].count = 0; + retval = pio2_cntr_irq_set(card, i); + if (retval < 0) + return retval; + } + + /* Ensure all counter interrupts are cleared */ + do { + retval = vme_master_read(card->window, ®, 1, + PIO2_REGS_INT_STAT_CNTR); + if (retval < 0) + return retval; + } while (reg != 0); + + return retval; +} + diff --git a/drivers/staging/vme/devices/vme_pio2_core.c b/drivers/staging/vme/devices/vme_pio2_core.c new file mode 100644 index 00000000000..fd19c257f53 --- /dev/null +++ b/drivers/staging/vme/devices/vme_pio2_core.c @@ -0,0 +1,512 @@ +/* + * GE PIO2 6U VME I/O Driver + * + * Author: Martyn Welch <martyn.welch@ge.com> + * Copyright 2009 GE Intelligent Platforms Embedded Systems, Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/device.h> +#include <linux/ctype.h> +#include <linux/gpio.h> +#include <linux/slab.h> +#include <linux/vme.h> + +#include "vme_pio2.h" + + +static const char driver_name[] = "pio2"; + +static int bus[PIO2_CARDS_MAX]; +static int bus_num; +static long base[PIO2_CARDS_MAX]; +static int base_num; +static int vector[PIO2_CARDS_MAX]; +static int vector_num; +static int level[PIO2_CARDS_MAX]; +static int level_num; +static char *variant[PIO2_CARDS_MAX]; +static int variant_num; + +static bool loopback; + +static int pio2_match(struct vme_dev *); +static int pio2_probe(struct vme_dev *); +static int pio2_remove(struct vme_dev *); + +static int pio2_get_led(struct pio2_card *card) +{ + /* Can't read hardware, state saved in structure */ + return card->led; +} + +static int pio2_set_led(struct pio2_card *card, int state) +{ + u8 reg; + int retval; + + reg = card->irq_level; + + /* Register state inverse of led state */ + if (!state) + reg |= PIO2_LED; + + if (loopback) + reg |= PIO2_LOOP; + + retval = vme_master_write(card->window, ®, 1, PIO2_REGS_CTRL); + if (retval < 0) + return retval; + + card->led = state ? 1 : 0; + + return 0; +} + +static void pio2_int(int level, int vector, void *ptr) +{ + int vec, i, channel, retval; + u8 reg; + struct pio2_card *card = ptr; + + vec = vector & ~PIO2_VME_VECTOR_MASK; + + switch (vec) { + case 0: + dev_warn(&card->vdev->dev, "Spurious Interrupt\n"); + break; + case 1: + case 2: + case 3: + case 4: + /* Channels 0 to 7 */ + retval = vme_master_read(card->window, ®, 1, + PIO2_REGS_INT_STAT[vec - 1]); + if (retval < 0) { + dev_err(&card->vdev->dev, + "Unable to read IRQ status register\n"); + return; + } + for (i = 0; i < 8; i++) { + channel = ((vec - 1) * 8) + i; + if (reg & PIO2_CHANNEL_BIT[channel]) + dev_info(&card->vdev->dev, + "Interrupt on I/O channel %d\n", + channel); + } + break; + case 5: + case 6: + case 7: + case 8: + case 9: + case 10: + /* Counters are dealt with by their own handler */ + dev_err(&card->vdev->dev, + "Counter interrupt\n"); + break; + } +} + + +/* + * We return whether this has been successful - this is used in the probe to + * ensure we have a valid card. + */ +static int pio2_reset_card(struct pio2_card *card) +{ + int retval = 0; + u8 data = 0; + + /* Clear main register*/ + retval = vme_master_write(card->window, &data, 1, PIO2_REGS_CTRL); + if (retval < 0) + return retval; + + /* Clear VME vector */ + retval = vme_master_write(card->window, &data, 1, PIO2_REGS_VME_VECTOR); + if (retval < 0) + return retval; + + /* Reset GPIO */ + retval = pio2_gpio_reset(card); + if (retval < 0) + return retval; + + /* Reset counters */ + retval = pio2_cntr_reset(card); + if (retval < 0) + return retval; + + return 0; +} + +static struct vme_driver pio2_driver = { + .name = driver_name, + .match = pio2_match, + .probe = pio2_probe, + .remove = pio2_remove, +}; + + +static int __init pio2_init(void) +{ + if (bus_num == 0) { + pr_err("No cards, skipping registration\n"); + return -ENODEV; + } + + if (bus_num > PIO2_CARDS_MAX) { + pr_err("Driver only able to handle %d PIO2 Cards\n", + PIO2_CARDS_MAX); + bus_num = PIO2_CARDS_MAX; + } + + /* Register the PIO2 driver */ + return vme_register_driver(&pio2_driver, bus_num); +} + +static int pio2_match(struct vme_dev *vdev) +{ + + if (vdev->num >= bus_num) { + dev_err(&vdev->dev, + "The enumeration of the VMEbus to which the board is connected must be specified"); + return 0; + } + + if (vdev->num >= base_num) { + dev_err(&vdev->dev, + "The VME address for the cards registers must be specified"); + return 0; + } + + if (vdev->num >= vector_num) { + dev_err(&vdev->dev, + "The IRQ vector used by the card must be specified"); + return 0; + } + + if (vdev->num >= level_num) { + dev_err(&vdev->dev, + "The IRQ level used by the card must be specified"); + return 0; + } + + if (vdev->num >= variant_num) { + dev_err(&vdev->dev, "The variant of the card must be specified"); + return 0; + } + + return 1; +} + +static int pio2_probe(struct vme_dev *vdev) +{ + struct pio2_card *card; + int retval; + int i; + u8 reg; + int vec; + + card = kzalloc(sizeof(struct pio2_card), GFP_KERNEL); + if (card == NULL) { + retval = -ENOMEM; + goto err_struct; + } + + card->id = vdev->num; + card->bus = bus[card->id]; + card->base = base[card->id]; + card->irq_vector = vector[card->id]; + card->irq_level = level[card->id] & PIO2_VME_INT_MASK; + strncpy(card->variant, variant[card->id], PIO2_VARIANT_LENGTH); + card->vdev = vdev; + + for (i = 0; i < PIO2_VARIANT_LENGTH; i++) { + + if (isdigit(card->variant[i]) == 0) { + dev_err(&card->vdev->dev, "Variant invalid\n"); + retval = -EINVAL; + goto err_variant; + } + } + + /* + * Bottom 4 bits of VME interrupt vector used to determine source, + * provided vector should only use upper 4 bits. + */ + if (card->irq_vector & ~PIO2_VME_VECTOR_MASK) { + dev_err(&card->vdev->dev, + "Invalid VME IRQ Vector, vector must not use lower 4 bits\n"); + retval = -EINVAL; + goto err_vector; + } + + /* + * There is no way to determine the build variant or whether each bank + * is input, output or both at run time. The inputs are also inverted + * if configured as both. + * + * We pass in the board variant and use that to determine the + * configuration of the banks. + */ + for (i = 1; i < PIO2_VARIANT_LENGTH; i++) { + switch (card->variant[i]) { + case '0': + card->bank[i-1].config = NOFIT; + break; + case '1': + case '2': + case '3': + case '4': + card->bank[i-1].config = INPUT; + break; + case '5': + card->bank[i-1].config = OUTPUT; + break; + case '6': + case '7': + case '8': + case '9': + card->bank[i-1].config = BOTH; + break; + } + } + + /* Get a master window and position over regs */ + card->window = vme_master_request(vdev, VME_A24, VME_SCT, VME_D16); + if (card->window == NULL) { + dev_err(&card->vdev->dev, + "Unable to assign VME master resource\n"); + retval = -EIO; + goto err_window; + } + + retval = vme_master_set(card->window, 1, card->base, 0x10000, VME_A24, + (VME_SCT | VME_USER | VME_DATA), VME_D16); + if (retval) { + dev_err(&card->vdev->dev, + "Unable to configure VME master resource\n"); + goto err_set; + } + + /* + * There is also no obvious register which we can probe to determine + * whether the provided base is valid. If we can read the "ID Register" + * offset and the reset function doesn't error, assume we have a valid + * location. + */ + retval = vme_master_read(card->window, ®, 1, PIO2_REGS_ID); + if (retval < 0) { + dev_err(&card->vdev->dev, "Unable to read from device\n"); + goto err_read; + } + + dev_dbg(&card->vdev->dev, "ID Register:%x\n", reg); + + /* + * Ensure all the I/O is cleared. We can't read back the states, so + * this is the only method we have to ensure that the I/O is in a known + * state. + */ + retval = pio2_reset_card(card); + if (retval) { + dev_err(&card->vdev->dev, + "Failed to reset card, is location valid?"); + retval = -ENODEV; + goto err_reset; + } + + /* Configure VME Interrupts */ + reg = card->irq_level; + if (pio2_get_led(card)) + reg |= PIO2_LED; + if (loopback) + reg |= PIO2_LOOP; + retval = vme_master_write(card->window, ®, 1, PIO2_REGS_CTRL); + if (retval < 0) + return retval; + + /* Set VME vector */ + retval = vme_master_write(card->window, &card->irq_vector, 1, + PIO2_REGS_VME_VECTOR); + if (retval < 0) + return retval; + + /* Attach spurious interrupt handler. */ + vec = card->irq_vector | PIO2_VME_VECTOR_SPUR; + + retval = vme_irq_request(vdev, card->irq_level, vec, + &pio2_int, (void *)card); + if (retval < 0) { + dev_err(&card->vdev->dev, + "Unable to attach VME interrupt vector0x%x, level 0x%x\n", + vec, card->irq_level); + goto err_irq; + } + + /* Attach GPIO interrupt handlers. */ + for (i = 0; i < 4; i++) { + vec = card->irq_vector | PIO2_VECTOR_BANK[i]; + + retval = vme_irq_request(vdev, card->irq_level, vec, + &pio2_int, (void *)card); + if (retval < 0) { + dev_err(&card->vdev->dev, + "Unable to attach VME interrupt vector0x%x, level 0x%x\n", + vec, card->irq_level); + goto err_gpio_irq; + } + } + + /* Attach counter interrupt handlers. */ + for (i = 0; i < 6; i++) { + vec = card->irq_vector | PIO2_VECTOR_CNTR[i]; + + retval = vme_irq_request(vdev, card->irq_level, vec, + &pio2_int, (void *)card); + if (retval < 0) { + dev_err(&card->vdev->dev, + "Unable to attach VME interrupt vector0x%x, level 0x%x\n", + vec, card->irq_level); + goto err_cntr_irq; + } + } + + /* Register IO */ + retval = pio2_gpio_init(card); + if (retval < 0) { + dev_err(&card->vdev->dev, + "Unable to register with GPIO framework\n"); + goto err_gpio; + } + + /* Set LED - This also sets interrupt level */ + retval = pio2_set_led(card, 0); + if (retval < 0) { + dev_err(&card->vdev->dev, "Unable to set LED\n"); + goto err_led; + } + + dev_set_drvdata(&card->vdev->dev, card); + + dev_info(&card->vdev->dev, + "PIO2 (variant %s) configured at 0x%lx\n", card->variant, + card->base); + + return 0; + +err_led: + pio2_gpio_exit(card); +err_gpio: + i = 6; +err_cntr_irq: + while (i > 0) { + i--; + vec = card->irq_vector | PIO2_VECTOR_CNTR[i]; + vme_irq_free(vdev, card->irq_level, vec); + } + + i = 4; +err_gpio_irq: + while (i > 0) { + i--; + vec = card->irq_vector | PIO2_VECTOR_BANK[i]; + vme_irq_free(vdev, card->irq_level, vec); + } + + vec = (card->irq_vector & PIO2_VME_VECTOR_MASK) | PIO2_VME_VECTOR_SPUR; + vme_irq_free(vdev, card->irq_level, vec); +err_irq: + pio2_reset_card(card); +err_reset: +err_read: + vme_master_set(card->window, 0, 0, 0, VME_A16, 0, VME_D16); +err_set: + vme_master_free(card->window); +err_window: +err_vector: +err_variant: + kfree(card); +err_struct: + return retval; +} + +static int pio2_remove(struct vme_dev *vdev) +{ + int vec; + int i; + + struct pio2_card *card = dev_get_drvdata(&vdev->dev); + + pio2_gpio_exit(card); + + for (i = 0; i < 6; i++) { + vec = card->irq_vector | PIO2_VECTOR_CNTR[i]; + vme_irq_free(vdev, card->irq_level, vec); + } + + for (i = 0; i < 4; i++) { + vec = card->irq_vector | PIO2_VECTOR_BANK[i]; + vme_irq_free(vdev, card->irq_level, vec); + } + + vec = (card->irq_vector & PIO2_VME_VECTOR_MASK) | PIO2_VME_VECTOR_SPUR; + vme_irq_free(vdev, card->irq_level, vec); + + pio2_reset_card(card); + + vme_master_set(card->window, 0, 0, 0, VME_A16, 0, VME_D16); + + vme_master_free(card->window); + + kfree(card); + + return 0; +} + +static void __exit pio2_exit(void) +{ + vme_unregister_driver(&pio2_driver); +} + + +/* These are required for each board */ +MODULE_PARM_DESC(bus, "Enumeration of VMEbus to which the board is connected"); +module_param_array(bus, int, &bus_num, S_IRUGO); + +MODULE_PARM_DESC(base, "Base VME address for PIO2 Registers"); +module_param_array(base, long, &base_num, S_IRUGO); + +MODULE_PARM_DESC(vector, "VME IRQ Vector (Lower 4 bits masked)"); +module_param_array(vector, int, &vector_num, S_IRUGO); + +MODULE_PARM_DESC(level, "VME IRQ Level"); +module_param_array(level, int, &level_num, S_IRUGO); + +MODULE_PARM_DESC(variant, "Last 4 characters of PIO2 board variant"); +module_param_array(variant, charp, &variant_num, S_IRUGO); + +/* This is for debugging */ +MODULE_PARM_DESC(loopback, "Enable loopback mode on all cards"); +module_param(loopback, bool, S_IRUGO); + +MODULE_DESCRIPTION("GE PIO2 6U VME I/O Driver"); +MODULE_AUTHOR("Martyn Welch <martyn.welch@ge.com"); +MODULE_LICENSE("GPL"); + +module_init(pio2_init); +module_exit(pio2_exit); + diff --git a/drivers/staging/vme/devices/vme_pio2_gpio.c b/drivers/staging/vme/devices/vme_pio2_gpio.c new file mode 100644 index 00000000000..2a2d920d980 --- /dev/null +++ b/drivers/staging/vme/devices/vme_pio2_gpio.c @@ -0,0 +1,229 @@ +/* + * GE PIO2 GPIO Driver + * + * Author: Martyn Welch <martyn.welch@ge.com> + * Copyright 2009 GE Intelligent Platforms Embedded Systems, Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/device.h> +#include <linux/platform_device.h> +#include <linux/ctype.h> +#include <linux/gpio.h> +#include <linux/slab.h> +#include <linux/vme.h> + +#include "vme_pio2.h" + +static const char driver_name[] = "pio2_gpio"; + +static struct pio2_card *gpio_to_pio2_card(struct gpio_chip *chip) +{ + return container_of(chip, struct pio2_card, gc); +} + +static int pio2_gpio_get(struct gpio_chip *chip, unsigned int offset) +{ + u8 reg; + int retval; + struct pio2_card *card = gpio_to_pio2_card(chip); + + if ((card->bank[PIO2_CHANNEL_BANK[offset]].config == OUTPUT) | + (card->bank[PIO2_CHANNEL_BANK[offset]].config == NOFIT)) { + + dev_err(&card->vdev->dev, "Channel not available as input\n"); + return 0; + } + + retval = vme_master_read(card->window, ®, 1, + PIO2_REGS_DATA[PIO2_CHANNEL_BANK[offset]]); + if (retval < 0) { + dev_err(&card->vdev->dev, "Unable to read from GPIO\n"); + return 0; + } + + /* + * Remember, input on channels configured as both input and output + * are inverted! + */ + if (reg & PIO2_CHANNEL_BIT[offset]) { + if (card->bank[PIO2_CHANNEL_BANK[offset]].config != BOTH) + return 0; + else + return 1; + } else { + if (card->bank[PIO2_CHANNEL_BANK[offset]].config != BOTH) + return 1; + else + return 0; + } +} + +static void pio2_gpio_set(struct gpio_chip *chip, unsigned int offset, + int value) +{ + u8 reg; + int retval; + struct pio2_card *card = gpio_to_pio2_card(chip); + + if ((card->bank[PIO2_CHANNEL_BANK[offset]].config == INPUT) | + (card->bank[PIO2_CHANNEL_BANK[offset]].config == NOFIT)) { + + dev_err(&card->vdev->dev, "Channel not available as output\n"); + return; + } + + if (value) + reg = card->bank[PIO2_CHANNEL_BANK[offset]].value | + PIO2_CHANNEL_BIT[offset]; + else + reg = card->bank[PIO2_CHANNEL_BANK[offset]].value & + ~PIO2_CHANNEL_BIT[offset]; + + retval = vme_master_write(card->window, ®, 1, + PIO2_REGS_DATA[PIO2_CHANNEL_BANK[offset]]); + if (retval < 0) { + dev_err(&card->vdev->dev, "Unable to write to GPIO\n"); + return; + } + + card->bank[PIO2_CHANNEL_BANK[offset]].value = reg; +} + +/* Directionality configured at board build - send appropriate response */ +static int pio2_gpio_dir_in(struct gpio_chip *chip, unsigned offset) +{ + int data; + struct pio2_card *card = gpio_to_pio2_card(chip); + + if ((card->bank[PIO2_CHANNEL_BANK[offset]].config == OUTPUT) | + (card->bank[PIO2_CHANNEL_BANK[offset]].config == NOFIT)) { + dev_err(&card->vdev->dev, + "Channel directionality not configurable at runtine\n"); + + data = -EINVAL; + } else { + data = 0; + } + + return data; +} + +/* Directionality configured at board build - send appropriate response */ +static int pio2_gpio_dir_out(struct gpio_chip *chip, unsigned offset, int value) +{ + int data; + struct pio2_card *card = gpio_to_pio2_card(chip); + + if ((card->bank[PIO2_CHANNEL_BANK[offset]].config == INPUT) | + (card->bank[PIO2_CHANNEL_BANK[offset]].config == NOFIT)) { + dev_err(&card->vdev->dev, + "Channel directionality not configurable at runtine\n"); + + data = -EINVAL; + } else { + data = 0; + } + + return data; +} + +/* + * We return whether this has been successful - this is used in the probe to + * ensure we have a valid card. + */ +int pio2_gpio_reset(struct pio2_card *card) +{ + int retval = 0; + int i, j; + + u8 data = 0; + + /* Zero output registers */ + for (i = 0; i < 4; i++) { + retval = vme_master_write(card->window, &data, 1, + PIO2_REGS_DATA[i]); + if (retval < 0) + return retval; + card->bank[i].value = 0; + } + + /* Set input interrupt masks */ + for (i = 0; i < 4; i++) { + retval = vme_master_write(card->window, &data, 1, + PIO2_REGS_INT_MASK[i * 2]); + if (retval < 0) + return retval; + + retval = vme_master_write(card->window, &data, 1, + PIO2_REGS_INT_MASK[(i * 2) + 1]); + if (retval < 0) + return retval; + + for (j = 0; j < 8; j++) + card->bank[i].irq[j] = NONE; + } + + /* Ensure all I/O interrupts are cleared */ + for (i = 0; i < 4; i++) { + do { + retval = vme_master_read(card->window, &data, 1, + PIO2_REGS_INT_STAT[i]); + if (retval < 0) + return retval; + } while (data != 0); + } + + return 0; +} + +int pio2_gpio_init(struct pio2_card *card) +{ + int retval = 0; + char *label; + + label = kmalloc(PIO2_NUM_CHANNELS, GFP_KERNEL); + if (label == NULL) + return -ENOMEM; + + sprintf(label, "%s@%s", driver_name, dev_name(&card->vdev->dev)); + card->gc.label = label; + + card->gc.ngpio = PIO2_NUM_CHANNELS; + /* Dynamic allocation of base */ + card->gc.base = -1; + /* Setup pointers to chip functions */ + card->gc.direction_input = pio2_gpio_dir_in; + card->gc.direction_output = pio2_gpio_dir_out; + card->gc.get = pio2_gpio_get; + card->gc.set = pio2_gpio_set; + + /* This function adds a memory mapped GPIO chip */ + retval = gpiochip_add(&(card->gc)); + if (retval) { + dev_err(&card->vdev->dev, "Unable to register GPIO\n"); + kfree(card->gc.label); + } + + return retval; +}; + +void pio2_gpio_exit(struct pio2_card *card) +{ + const char *label = card->gc.label; + + if (gpiochip_remove(&(card->gc))) + dev_err(&card->vdev->dev, "Failed to remove GPIO"); + + kfree(label); +} + diff --git a/drivers/staging/vme/devices/vme_user.c b/drivers/staging/vme/devices/vme_user.c index 71bbc526626..2d8497277aa 100644 --- a/drivers/staging/vme/devices/vme_user.c +++ b/drivers/staging/vme/devices/vme_user.c @@ -15,6 +15,8 @@ * option) any later version. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/cdev.h> #include <linux/delay.h> #include <linux/device.h> @@ -27,24 +29,23 @@ #include <linux/module.h> #include <linux/pagemap.h> #include <linux/pci.h> -#include <linux/semaphore.h> +#include <linux/mutex.h> #include <linux/slab.h> #include <linux/spinlock.h> #include <linux/syscalls.h> -#include <linux/mutex.h> #include <linux/types.h> #include <linux/io.h> #include <linux/uaccess.h> +#include <linux/vme.h> -#include "../vme.h" #include "vme_user.h" static DEFINE_MUTEX(vme_user_mutex); -static char driver_name[] = "vme_user"; +static const char driver_name[] = "vme_user"; -static int bus[USER_BUS_MAX]; -static int bus_num; +static int bus[VME_USER_BUS_MAX]; +static unsigned int bus_num; /* Currently Documentation/devices.txt defines the following for VME: * @@ -65,13 +66,13 @@ static int bus_num; * * However the VME driver at http://www.vmelinux.org/ is rather old and doesn't * even support the tsi148 chipset (which has 8 master and 8 slave windows). - * We'll run with this or now as far as possible, however it probably makes + * We'll run with this for now as far as possible, however it probably makes * sense to get rid of the old mappings and just do everything dynamically. * * So for now, we'll restrict the driver to providing 4 masters and 4 slaves as * defined above and try to support at least some of the interface from - * http://www.vmelinux.org/ as an alternative drive can be written providing a - * saner interface later. + * http://www.vmelinux.org/ as an alternative the driver can be written + * providing a saner interface later. * * The vmelinux.org driver never supported slave images, the devices reserved * for slaves were repurposed to support all 8 master images on the UniverseII! @@ -91,32 +92,32 @@ static int bus_num; /* * Structure to handle image related parameters. */ -typedef struct { - void __iomem *kern_buf; /* Buffer address in kernel space */ +struct image_desc { + void *kern_buf; /* Buffer address in kernel space */ dma_addr_t pci_buf; /* Buffer address in PCI address space */ unsigned long long size_buf; /* Buffer size */ - struct semaphore sem; /* Semaphore for locking image */ + struct mutex mutex; /* Mutex for locking image */ struct device *device; /* Sysfs device */ struct vme_resource *resource; /* VME resource */ int users; /* Number of current users */ -} image_desc_t; -static image_desc_t image[VME_DEVS]; +}; +static struct image_desc image[VME_DEVS]; -typedef struct { +struct driver_stats { unsigned long reads; unsigned long writes; unsigned long ioctls; unsigned long irqs; unsigned long berrs; - unsigned long dmaErrors; + unsigned long dmaerrors; unsigned long timeouts; unsigned long external; -} driver_stats_t; -static driver_stats_t statistics; +}; +static struct driver_stats statistics; -struct cdev *vme_user_cdev; /* Character device */ -struct class *vme_user_sysfs_class; /* Sysfs class */ -struct device *vme_user_bridge; /* Pointer to the bridge device */ +static struct cdev *vme_user_cdev; /* Character device */ +static struct class *vme_user_sysfs_class; /* Sysfs class */ +static struct vme_dev *vme_user_bridge; /* Pointer to user device */ static const int type[VME_DEVS] = { MASTER_MINOR, MASTER_MINOR, @@ -129,21 +130,24 @@ static const int type[VME_DEVS] = { MASTER_MINOR, MASTER_MINOR, static int vme_user_open(struct inode *, struct file *); static int vme_user_release(struct inode *, struct file *); -static ssize_t vme_user_read(struct file *, char *, size_t, loff_t *); -static ssize_t vme_user_write(struct file *, const char *, size_t, loff_t *); +static ssize_t vme_user_read(struct file *, char __user *, size_t, loff_t *); +static ssize_t vme_user_write(struct file *, const char __user *, size_t, + loff_t *); static loff_t vme_user_llseek(struct file *, loff_t, int); static long vme_user_unlocked_ioctl(struct file *, unsigned int, unsigned long); -static int __init vme_user_probe(struct device *, int, int); -static int __exit vme_user_remove(struct device *, int, int); +static int vme_user_match(struct vme_dev *); +static int vme_user_probe(struct vme_dev *); +static int vme_user_remove(struct vme_dev *); -static struct file_operations vme_user_fops = { +static const struct file_operations vme_user_fops = { .open = vme_user_open, .release = vme_user_release, .read = vme_user_read, .write = vme_user_write, .llseek = vme_user_llseek, .unlocked_ioctl = vme_user_unlocked_ioctl, + .compat_ioctl = vme_user_unlocked_ioctl, }; @@ -157,7 +161,7 @@ static void reset_counters(void) statistics.ioctls = 0; statistics.irqs = 0; statistics.berrs = 0; - statistics.dmaErrors = 0; + statistics.dmaerrors = 0; statistics.timeouts = 0; } @@ -166,10 +170,10 @@ static int vme_user_open(struct inode *inode, struct file *file) int err; unsigned int minor = MINOR(inode->i_rdev); - down(&image[minor].sem); - /* Only allow device to be opened if a resource is allocated */ - if (image[minor].resource == NULL) { - printk(KERN_ERR "No resources allocated for device\n"); + mutex_lock(&image[minor].mutex); + /* Allow device to be opened if a resource is needed and allocated. */ + if (minor < CONTROL_MINOR && image[minor].resource == NULL) { + pr_err("No resources allocated for device\n"); err = -EINVAL; goto err_res; } @@ -177,12 +181,12 @@ static int vme_user_open(struct inode *inode, struct file *file) /* Increment user count */ image[minor].users++; - up(&image[minor].sem); + mutex_unlock(&image[minor].mutex); return 0; err_res: - up(&image[minor].sem); + mutex_unlock(&image[minor].mutex); return err; } @@ -191,12 +195,12 @@ static int vme_user_release(struct inode *inode, struct file *file) { unsigned int minor = MINOR(inode->i_rdev); - down(&image[minor].sem); + mutex_lock(&image[minor].mutex); /* Decrement user count */ image[minor].users--; - up(&image[minor].sem); + mutex_unlock(&image[minor].mutex); return 0; } @@ -224,13 +228,13 @@ static ssize_t resource_to_user(int minor, char __user *buf, size_t count, (unsigned long)copied); if (retval != 0) { copied = (copied - retval); - printk(KERN_INFO "User copy failed\n"); + pr_info("User copy failed\n"); return -EINVAL; } } else { /* XXX Need to write this */ - printk(KERN_INFO "Currently don't support large transfers\n"); + pr_info("Currently don't support large transfers\n"); /* Map in pages from userspace */ /* Call vme_master_read to do the transfer */ @@ -241,12 +245,12 @@ static ssize_t resource_to_user(int minor, char __user *buf, size_t count, } /* - * We are going ot alloc a page during init per window for small transfers. + * We are going to alloc a page during init per window for small transfers. * Small transfers will go user space -> buffer -> VME. Larger (more than a * page) transfers will lock the user space buffer into memory and then * transfer the data directly from the user space buffers out to VME. */ -static ssize_t resource_from_user(unsigned int minor, const char *buf, +static ssize_t resource_from_user(unsigned int minor, const char __user *buf, size_t count, loff_t *ppos) { ssize_t retval; @@ -264,7 +268,7 @@ static ssize_t resource_from_user(unsigned int minor, const char *buf, image[minor].kern_buf, copied, *ppos); } else { /* XXX Need to write this */ - printk(KERN_INFO "Currently don't support large transfers\n"); + pr_info("Currently don't support large transfers\n"); /* Map in pages from userspace */ /* Call vme_master_write to do the transfer */ @@ -277,7 +281,7 @@ static ssize_t resource_from_user(unsigned int minor, const char *buf, static ssize_t buffer_to_user(unsigned int minor, char __user *buf, size_t count, loff_t *ppos) { - void __iomem *image_ptr; + void *image_ptr; ssize_t retval; image_ptr = image[minor].kern_buf + *ppos; @@ -285,7 +289,7 @@ static ssize_t buffer_to_user(unsigned int minor, char __user *buf, retval = __copy_to_user(buf, image_ptr, (unsigned long)count); if (retval != 0) { retval = (count - retval); - printk(KERN_WARNING "Partial copy to userspace\n"); + pr_warn("Partial copy to userspace\n"); } else retval = count; @@ -293,10 +297,10 @@ static ssize_t buffer_to_user(unsigned int minor, char __user *buf, return retval; } -static ssize_t buffer_from_user(unsigned int minor, const char *buf, +static ssize_t buffer_from_user(unsigned int minor, const char __user *buf, size_t count, loff_t *ppos) { - void __iomem *image_ptr; + void *image_ptr; size_t retval; image_ptr = image[minor].kern_buf + *ppos; @@ -304,7 +308,7 @@ static ssize_t buffer_from_user(unsigned int minor, const char *buf, retval = __copy_from_user(image_ptr, buf, (unsigned long)count); if (retval != 0) { retval = (count - retval); - printk(KERN_WARNING "Partial copy to userspace\n"); + pr_warn("Partial copy to userspace\n"); } else retval = count; @@ -312,22 +316,25 @@ static ssize_t buffer_from_user(unsigned int minor, const char *buf, return retval; } -static ssize_t vme_user_read(struct file *file, char *buf, size_t count, +static ssize_t vme_user_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { - unsigned int minor = MINOR(file->f_dentry->d_inode->i_rdev); + unsigned int minor = MINOR(file_inode(file)->i_rdev); ssize_t retval; size_t image_size; size_t okcount; - down(&image[minor].sem); + if (minor == CONTROL_MINOR) + return 0; + + mutex_lock(&image[minor].mutex); /* XXX Do we *really* want this helper - we can use vme_*_get ? */ image_size = vme_get_size(image[minor].resource); /* Ensure we are starting at a valid location */ if ((*ppos < 0) || (*ppos > (image_size - 1))) { - up(&image[minor].sem); + mutex_unlock(&image[minor].mutex); return 0; } @@ -348,29 +355,31 @@ static ssize_t vme_user_read(struct file *file, char *buf, size_t count, retval = -EINVAL; } - up(&image[minor].sem); - + mutex_unlock(&image[minor].mutex); if (retval > 0) *ppos += retval; return retval; } -static ssize_t vme_user_write(struct file *file, const char *buf, size_t count, - loff_t *ppos) +static ssize_t vme_user_write(struct file *file, const char __user *buf, + size_t count, loff_t *ppos) { - unsigned int minor = MINOR(file->f_dentry->d_inode->i_rdev); + unsigned int minor = MINOR(file_inode(file)->i_rdev); ssize_t retval; size_t image_size; size_t okcount; - down(&image[minor].sem); + if (minor == CONTROL_MINOR) + return 0; + + mutex_lock(&image[minor].mutex); image_size = vme_get_size(image[minor].resource); /* Ensure we are starting at a valid location */ if ((*ppos < 0) || (*ppos > (image_size - 1))) { - up(&image[minor].sem); + mutex_unlock(&image[minor].mutex); return 0; } @@ -391,7 +400,7 @@ static ssize_t vme_user_write(struct file *file, const char *buf, size_t count, retval = -EINVAL; } - up(&image[minor].sem); + mutex_unlock(&image[minor].mutex); if (retval > 0) *ppos += retval; @@ -402,10 +411,13 @@ static ssize_t vme_user_write(struct file *file, const char *buf, size_t count, static loff_t vme_user_llseek(struct file *file, loff_t off, int whence) { loff_t absolute = -1; - unsigned int minor = MINOR(file->f_dentry->d_inode->i_rdev); + unsigned int minor = MINOR(file_inode(file)->i_rdev); size_t image_size; - down(&image[minor].sem); + if (minor == CONTROL_MINOR) + return -EINVAL; + + mutex_lock(&image[minor].mutex); image_size = vme_get_size(image[minor].resource); switch (whence) { @@ -419,19 +431,19 @@ static loff_t vme_user_llseek(struct file *file, loff_t off, int whence) absolute = image_size + off; break; default: - up(&image[minor].sem); + mutex_unlock(&image[minor].mutex); return -EINVAL; break; } if ((absolute < 0) || (absolute >= image_size)) { - up(&image[minor].sem); + mutex_unlock(&image[minor].mutex); return -EINVAL; } file->f_pos = absolute; - up(&image[minor].sem); + mutex_unlock(&image[minor].mutex); return absolute; } @@ -451,15 +463,32 @@ static int vme_user_ioctl(struct inode *inode, struct file *file, { struct vme_master master; struct vme_slave slave; + struct vme_irq_id irq_req; unsigned long copied; unsigned int minor = MINOR(inode->i_rdev); int retval; dma_addr_t pci_addr; + void __user *argp = (void __user *)arg; statistics.ioctls++; switch (type[minor]) { case CONTROL_MINOR: + switch (cmd) { + case VME_IRQ_GEN: + copied = copy_from_user(&irq_req, argp, + sizeof(struct vme_irq_id)); + if (copied != 0) { + pr_warn("Partial copy from userspace\n"); + return -EFAULT; + } + + retval = vme_irq_generate(vme_user_bridge, + irq_req.level, + irq_req.statid); + + return retval; + } break; case MASTER_MINOR: switch (cmd) { @@ -470,15 +499,14 @@ static int vme_user_ioctl(struct inode *inode, struct file *file, * to userspace as they are */ retval = vme_master_get(image[minor].resource, - &(master.enable), &(master.vme_addr), - &(master.size), &(master.aspace), - &(master.cycle), &(master.dwidth)); + &master.enable, &master.vme_addr, + &master.size, &master.aspace, + &master.cycle, &master.dwidth); - copied = copy_to_user((char *)arg, &master, + copied = copy_to_user(argp, &master, sizeof(struct vme_master)); if (copied != 0) { - printk(KERN_WARNING "Partial copy to " - "userspace\n"); + pr_warn("Partial copy to userspace\n"); return -EFAULT; } @@ -487,11 +515,9 @@ static int vme_user_ioctl(struct inode *inode, struct file *file, case VME_SET_MASTER: - copied = copy_from_user(&master, (char *)arg, - sizeof(master)); + copied = copy_from_user(&master, argp, sizeof(master)); if (copied != 0) { - printk(KERN_WARNING "Partial copy from " - "userspace\n"); + pr_warn("Partial copy from userspace\n"); return -EFAULT; } @@ -514,15 +540,14 @@ static int vme_user_ioctl(struct inode *inode, struct file *file, * to userspace as they are */ retval = vme_slave_get(image[minor].resource, - &(slave.enable), &(slave.vme_addr), - &(slave.size), &pci_addr, &(slave.aspace), - &(slave.cycle)); + &slave.enable, &slave.vme_addr, + &slave.size, &pci_addr, &slave.aspace, + &slave.cycle); - copied = copy_to_user((char *)arg, &slave, + copied = copy_to_user(argp, &slave, sizeof(struct vme_slave)); if (copied != 0) { - printk(KERN_WARNING "Partial copy to " - "userspace\n"); + pr_warn("Partial copy to userspace\n"); return -EFAULT; } @@ -531,11 +556,9 @@ static int vme_user_ioctl(struct inode *inode, struct file *file, case VME_SET_SLAVE: - copied = copy_from_user(&slave, (char *)arg, - sizeof(slave)); + copied = copy_from_user(&slave, argp, sizeof(slave)); if (copied != 0) { - printk(KERN_WARNING "Partial copy from " - "userspace\n"); + pr_warn("Partial copy from userspace\n"); return -EFAULT; } @@ -561,7 +584,7 @@ vme_user_unlocked_ioctl(struct file *file, unsigned int cmd, unsigned long arg) int ret; mutex_lock(&vme_user_mutex); - ret = vme_user_ioctl(file->f_path.dentry->d_inode, file, cmd, arg); + ret = vme_user_ioctl(file_inode(file), file, cmd, arg); mutex_unlock(&vme_user_mutex); return ret; @@ -575,8 +598,8 @@ static void buf_unalloc(int num) { if (image[num].kern_buf) { #ifdef VME_DEBUG - printk(KERN_DEBUG "UniverseII:Releasing buffer at %p\n", - image[num].pci_buf); + pr_debug("UniverseII:Releasing buffer at %p\n", + image[num].pci_buf); #endif vme_free_consistent(image[num].resource, image[num].size_buf, @@ -588,13 +611,14 @@ static void buf_unalloc(int num) #ifdef VME_DEBUG } else { - printk(KERN_DEBUG "UniverseII: Buffer not allocated\n"); + pr_debug("UniverseII: Buffer not allocated\n"); #endif } } static struct vme_driver vme_user_driver = { .name = driver_name, + .match = vme_user_match, .probe = vme_user_probe, .remove = vme_user_remove, }; @@ -603,87 +627,78 @@ static struct vme_driver vme_user_driver = { static int __init vme_user_init(void) { int retval = 0; - int i; - struct vme_device_id *ids; - printk(KERN_INFO "VME User Space Access Driver\n"); + pr_info("VME User Space Access Driver\n"); if (bus_num == 0) { - printk(KERN_ERR "%s: No cards, skipping registration\n", - driver_name); + pr_err("No cards, skipping registration\n"); + retval = -ENODEV; goto err_nocard; } /* Let's start by supporting one bus, we can support more than one * in future revisions if that ever becomes necessary. */ - if (bus_num > USER_BUS_MAX) { - printk(KERN_ERR "%s: Driver only able to handle %d buses\n", - driver_name, USER_BUS_MAX); - bus_num = USER_BUS_MAX; + if (bus_num > VME_USER_BUS_MAX) { + pr_err("Driver only able to handle %d buses\n", + VME_USER_BUS_MAX); + bus_num = VME_USER_BUS_MAX; } - - /* Dynamically create the bind table based on module parameters */ - ids = kmalloc(sizeof(struct vme_device_id) * (bus_num + 1), GFP_KERNEL); - if (ids == NULL) { - printk(KERN_ERR "%s: Unable to allocate ID table\n", - driver_name); - goto err_id; - } - - memset(ids, 0, (sizeof(struct vme_device_id) * (bus_num + 1))); - - for (i = 0; i < bus_num; i++) { - ids[i].bus = bus[i]; - /* - * We register the driver against the slot occupied by *this* - * card, since it's really a low level way of controlling - * the VME bridge - */ - ids[i].slot = VME_SLOT_CURRENT; - } - - vme_user_driver.bind_table = ids; - - retval = vme_register_driver(&vme_user_driver); + /* + * Here we just register the maximum number of devices we can and + * leave vme_user_match() to allow only 1 to go through to probe(). + * This way, if we later want to allow multiple user access devices, + * we just change the code in vme_user_match(). + */ + retval = vme_register_driver(&vme_user_driver, VME_MAX_SLOTS); if (retval != 0) goto err_reg; return retval; - vme_unregister_driver(&vme_user_driver); err_reg: - kfree(ids); -err_id: err_nocard: return retval; } +static int vme_user_match(struct vme_dev *vdev) +{ + int i; + + int cur_bus = vme_bus_num(vdev); + int cur_slot = vme_slot_num(vdev); + + for (i = 0; i < bus_num; i++) + if ((cur_bus == bus[i]) && (cur_slot == vdev->num)) + return 1; + + return 0; +} + /* * In this simple access driver, the old behaviour is being preserved as much * as practical. We will therefore reserve the buffers and request the images * here so that we don't have to do it later. */ -static int __init vme_user_probe(struct device *dev, int cur_bus, int cur_slot) +static int vme_user_probe(struct vme_dev *vdev) { int i, err; - char name[12]; + char *name; /* Save pointer to the bridge device */ if (vme_user_bridge != NULL) { - printk(KERN_ERR "%s: Driver can only be loaded for 1 device\n", - driver_name); + dev_err(&vdev->dev, "Driver can only be loaded for 1 device\n"); err = -EINVAL; goto err_dev; } - vme_user_bridge = dev; + vme_user_bridge = vdev; /* Initialise descriptors */ for (i = 0; i < VME_DEVS; i++) { image[i].kern_buf = NULL; image[i].pci_buf = 0; - sema_init(&(image[i].sem), 1); + mutex_init(&image[i].mutex); image[i].device = NULL; image[i].resource = NULL; image[i].users = 0; @@ -696,18 +711,22 @@ static int __init vme_user_probe(struct device *dev, int cur_bus, int cur_slot) err = register_chrdev_region(MKDEV(VME_MAJOR, 0), VME_DEVS, driver_name); if (err) { - printk(KERN_WARNING "%s: Error getting Major Number %d for " - "driver.\n", driver_name, VME_MAJOR); + dev_warn(&vdev->dev, "Error getting Major Number %d for driver.\n", + VME_MAJOR); goto err_region; } /* Register the driver as a char device */ vme_user_cdev = cdev_alloc(); + if (!vme_user_cdev) { + err = -ENOMEM; + goto err_char; + } vme_user_cdev->ops = &vme_user_fops; vme_user_cdev->owner = THIS_MODULE; err = cdev_add(vme_user_cdev, MKDEV(VME_MAJOR, 0), VME_DEVS); if (err) { - printk(KERN_WARNING "%s: cdev_all failed\n", driver_name); + dev_warn(&vdev->dev, "cdev_all failed\n"); goto err_char; } @@ -721,16 +740,17 @@ static int __init vme_user_probe(struct device *dev, int cur_bus, int cur_slot) image[i].resource = vme_slave_request(vme_user_bridge, VME_A24, VME_SCT); if (image[i].resource == NULL) { - printk(KERN_WARNING "Unable to allocate slave " - "resource\n"); + dev_warn(&vdev->dev, + "Unable to allocate slave resource\n"); + err = -ENOMEM; goto err_slave; } image[i].size_buf = PCI_BUF_SIZE; image[i].kern_buf = vme_alloc_consistent(image[i].resource, - image[i].size_buf, &(image[i].pci_buf)); + image[i].size_buf, &image[i].pci_buf); if (image[i].kern_buf == NULL) { - printk(KERN_WARNING "Unable to allocate memory for " - "buffer\n"); + dev_warn(&vdev->dev, + "Unable to allocate memory for buffer\n"); image[i].pci_buf = 0; vme_slave_free(image[i].resource); err = -ENOMEM; @@ -747,39 +767,41 @@ static int __init vme_user_probe(struct device *dev, int cur_bus, int cur_slot) image[i].resource = vme_master_request(vme_user_bridge, VME_A32, VME_SCT, VME_D32); if (image[i].resource == NULL) { - printk(KERN_WARNING "Unable to allocate master " - "resource\n"); + dev_warn(&vdev->dev, + "Unable to allocate master resource\n"); + err = -ENOMEM; goto err_master; } image[i].size_buf = PCI_BUF_SIZE; image[i].kern_buf = kmalloc(image[i].size_buf, GFP_KERNEL); if (image[i].kern_buf == NULL) { - printk(KERN_WARNING "Unable to allocate memory for " - "master window buffers\n"); err = -ENOMEM; - goto err_master_buf; + vme_master_free(image[i].resource); + goto err_master; } } /* Create sysfs entries - on udev systems this creates the dev files */ vme_user_sysfs_class = class_create(THIS_MODULE, driver_name); if (IS_ERR(vme_user_sysfs_class)) { - printk(KERN_ERR "Error creating vme_user class.\n"); + dev_err(&vdev->dev, "Error creating vme_user class.\n"); err = PTR_ERR(vme_user_sysfs_class); goto err_class; } /* Add sysfs Entries */ for (i = 0; i < VME_DEVS; i++) { + int num; + switch (type[i]) { case MASTER_MINOR: - sprintf(name, "bus/vme/m%%d"); + name = "bus/vme/m%d"; break; case CONTROL_MINOR: - sprintf(name, "bus/vme/ctl"); + name = "bus/vme/ctl"; break; case SLAVE_MINOR: - sprintf(name, "bus/vme/s%%d"); + name = "bus/vme/s%d"; break; default: err = -EINVAL; @@ -787,13 +809,11 @@ static int __init vme_user_probe(struct device *dev, int cur_bus, int cur_slot) break; } - image[i].device = - device_create(vme_user_sysfs_class, NULL, - MKDEV(VME_MAJOR, i), NULL, name, - (type[i] == SLAVE_MINOR) ? i - (MASTER_MAX + 1) : i); + num = (type[i] == SLAVE_MINOR) ? i - (MASTER_MAX + 1) : i; + image[i].device = device_create(vme_user_sysfs_class, NULL, + MKDEV(VME_MAJOR, i), NULL, name, num); if (IS_ERR(image[i].device)) { - printk(KERN_INFO "%s: Error creating sysfs device\n", - driver_name); + dev_info(&vdev->dev, "Error creating sysfs device\n"); err = PTR_ERR(image[i].device); goto err_sysfs; } @@ -801,8 +821,6 @@ static int __init vme_user_probe(struct device *dev, int cur_bus, int cur_slot) return 0; - /* Ensure counter set correcty to destroy all sysfs devices */ - i = VME_DEVS; err_sysfs: while (i > 0) { i--; @@ -812,12 +830,10 @@ err_sysfs: /* Ensure counter set correcty to unalloc all master windows */ i = MASTER_MAX + 1; -err_master_buf: - for (i = MASTER_MINOR; i < (MASTER_MAX + 1); i++) - kfree(image[i].kern_buf); err_master: while (i > MASTER_MINOR) { i--; + kfree(image[i].kern_buf); vme_master_free(image[i].resource); } @@ -828,8 +844,8 @@ err_master: err_slave: while (i > SLAVE_MINOR) { i--; - vme_slave_free(image[i].resource); buf_unalloc(i); + vme_slave_free(image[i].resource); } err_class: cdev_del(vme_user_cdev); @@ -840,22 +856,26 @@ err_dev: return err; } -static int __exit vme_user_remove(struct device *dev, int cur_bus, int cur_slot) +static int vme_user_remove(struct vme_dev *dev) { int i; /* Remove sysfs Entries */ - for (i = 0; i < VME_DEVS; i++) + for (i = 0; i < VME_DEVS; i++) { + mutex_destroy(&image[i].mutex); device_destroy(vme_user_sysfs_class, MKDEV(VME_MAJOR, i)); + } class_destroy(vme_user_sysfs_class); - for (i = MASTER_MINOR; i < (MASTER_MAX + 1); i++) + for (i = MASTER_MINOR; i < (MASTER_MAX + 1); i++) { kfree(image[i].kern_buf); + vme_master_free(image[i].resource); + } for (i = SLAVE_MINOR; i < (SLAVE_MAX + 1); i++) { vme_slave_set(image[i].resource, 0, 0, 0, 0, VME_A32, 0); - vme_slave_free(image[i].resource); buf_unalloc(i); + vme_slave_free(image[i].resource); } /* Unregister device driver */ @@ -870,8 +890,6 @@ static int __exit vme_user_remove(struct device *dev, int cur_bus, int cur_slot) static void __exit vme_user_exit(void) { vme_unregister_driver(&vme_user_driver); - - kfree(vme_user_driver.bind_table); } diff --git a/drivers/staging/vme/devices/vme_user.h b/drivers/staging/vme/devices/vme_user.h index ede77d7e766..b8cc7bc78a7 100644 --- a/drivers/staging/vme/devices/vme_user.h +++ b/drivers/staging/vme/devices/vme_user.h @@ -1,24 +1,24 @@ #ifndef _VME_USER_H_ #define _VME_USER_H_ -#define USER_BUS_MAX 1 +#define VME_USER_BUS_MAX 1 /* * VMEbus Master Window Configuration Structure */ struct vme_master { - int enable; /* State of Window */ - unsigned long long vme_addr; /* Starting Address on the VMEbus */ - unsigned long long size; /* Window Size */ - vme_address_t aspace; /* Address Space */ - vme_cycle_t cycle; /* Cycle properties */ - vme_width_t dwidth; /* Maximum Data Width */ + __u32 enable; /* State of Window */ + __u64 vme_addr; /* Starting Address on the VMEbus */ + __u64 size; /* Window Size */ + __u32 aspace; /* Address Space */ + __u32 cycle; /* Cycle properties */ + __u32 dwidth; /* Maximum Data Width */ #if 0 - char prefetchEnable; /* Prefetch Read Enable State */ - int prefetchSize; /* Prefetch Read Size (Cache Lines) */ - char wrPostEnable; /* Write Post State */ + char prefetchenable; /* Prefetch Read Enable State */ + int prefetchsize; /* Prefetch Read Size (Cache Lines) */ + char wrpostenable; /* Write Post State */ #endif -}; +} __packed; /* @@ -31,22 +31,28 @@ struct vme_master { /* VMEbus Slave Window Configuration Structure */ struct vme_slave { - int enable; /* State of Window */ - unsigned long long vme_addr; /* Starting Address on the VMEbus */ - unsigned long long size; /* Window Size */ - vme_address_t aspace; /* Address Space */ - vme_cycle_t cycle; /* Cycle properties */ + __u32 enable; /* State of Window */ + __u64 vme_addr; /* Starting Address on the VMEbus */ + __u64 size; /* Window Size */ + __u32 aspace; /* Address Space */ + __u32 cycle; /* Cycle properties */ #if 0 - char wrPostEnable; /* Write Post State */ - char rmwLock; /* Lock PCI during RMW Cycles */ - char data64BitCapable; /* non-VMEbus capable of 64-bit Data */ + char wrpostenable; /* Write Post State */ + char rmwlock; /* Lock PCI during RMW Cycles */ + char data64bitcapable; /* non-VMEbus capable of 64-bit Data */ #endif +} __packed; + +struct vme_irq_id { + __u8 level; + __u8 statid; }; #define VME_GET_SLAVE _IOR(VME_IOC_MAGIC, 1, struct vme_slave) #define VME_SET_SLAVE _IOW(VME_IOC_MAGIC, 2, struct vme_slave) #define VME_GET_MASTER _IOR(VME_IOC_MAGIC, 3, struct vme_master) #define VME_SET_MASTER _IOW(VME_IOC_MAGIC, 4, struct vme_master) +#define VME_IRQ_GEN _IOW(VME_IOC_MAGIC, 5, struct vme_irq_id) #endif /* _VME_USER_H_ */ diff --git a/drivers/staging/vme/vme.c b/drivers/staging/vme/vme.c deleted file mode 100644 index 093fbffbf55..00000000000 --- a/drivers/staging/vme/vme.c +++ /dev/null @@ -1,1539 +0,0 @@ -/* - * VME Bridge Framework - * - * Author: Martyn Welch <martyn.welch@ge.com> - * Copyright 2008 GE Intelligent Platforms Embedded Systems, Inc. - * - * Based on work by Tom Armistead and Ajit Prem - * Copyright 2004 Motorola Inc. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ - -#include <linux/module.h> -#include <linux/moduleparam.h> -#include <linux/mm.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/pci.h> -#include <linux/poll.h> -#include <linux/highmem.h> -#include <linux/interrupt.h> -#include <linux/pagemap.h> -#include <linux/device.h> -#include <linux/dma-mapping.h> -#include <linux/syscalls.h> -#include <linux/mutex.h> -#include <linux/spinlock.h> -#include <linux/slab.h> - -#include "vme.h" -#include "vme_bridge.h" - -/* Bitmask and mutex to keep track of bridge numbers */ -static unsigned int vme_bus_numbers; -static DEFINE_MUTEX(vme_bus_num_mtx); - -static void __exit vme_exit(void); -static int __init vme_init(void); - - -/* - * Find the bridge resource associated with a specific device resource - */ -static struct vme_bridge *dev_to_bridge(struct device *dev) -{ - return dev->platform_data; -} - -/* - * Find the bridge that the resource is associated with. - */ -static struct vme_bridge *find_bridge(struct vme_resource *resource) -{ - /* Get list to search */ - switch (resource->type) { - case VME_MASTER: - return list_entry(resource->entry, struct vme_master_resource, - list)->parent; - break; - case VME_SLAVE: - return list_entry(resource->entry, struct vme_slave_resource, - list)->parent; - break; - case VME_DMA: - return list_entry(resource->entry, struct vme_dma_resource, - list)->parent; - break; - case VME_LM: - return list_entry(resource->entry, struct vme_lm_resource, - list)->parent; - break; - default: - printk(KERN_ERR "Unknown resource type\n"); - return NULL; - break; - } -} - -/* - * Allocate a contiguous block of memory for use by the driver. This is used to - * create the buffers for the slave windows. - * - * XXX VME bridges could be available on buses other than PCI. At the momment - * this framework only supports PCI devices. - */ -void *vme_alloc_consistent(struct vme_resource *resource, size_t size, - dma_addr_t *dma) -{ - struct vme_bridge *bridge; - struct pci_dev *pdev; - - if (resource == NULL) { - printk(KERN_ERR "No resource\n"); - return NULL; - } - - bridge = find_bridge(resource); - if (bridge == NULL) { - printk(KERN_ERR "Can't find bridge\n"); - return NULL; - } - - /* Find pci_dev container of dev */ - if (bridge->parent == NULL) { - printk(KERN_ERR "Dev entry NULL\n"); - return NULL; - } - pdev = container_of(bridge->parent, struct pci_dev, dev); - - return pci_alloc_consistent(pdev, size, dma); -} -EXPORT_SYMBOL(vme_alloc_consistent); - -/* - * Free previously allocated contiguous block of memory. - * - * XXX VME bridges could be available on buses other than PCI. At the momment - * this framework only supports PCI devices. - */ -void vme_free_consistent(struct vme_resource *resource, size_t size, - void *vaddr, dma_addr_t dma) -{ - struct vme_bridge *bridge; - struct pci_dev *pdev; - - if (resource == NULL) { - printk(KERN_ERR "No resource\n"); - return; - } - - bridge = find_bridge(resource); - if (bridge == NULL) { - printk(KERN_ERR "Can't find bridge\n"); - return; - } - - /* Find pci_dev container of dev */ - pdev = container_of(bridge->parent, struct pci_dev, dev); - - pci_free_consistent(pdev, size, vaddr, dma); -} -EXPORT_SYMBOL(vme_free_consistent); - -size_t vme_get_size(struct vme_resource *resource) -{ - int enabled, retval; - unsigned long long base, size; - dma_addr_t buf_base; - vme_address_t aspace; - vme_cycle_t cycle; - vme_width_t dwidth; - - switch (resource->type) { - case VME_MASTER: - retval = vme_master_get(resource, &enabled, &base, &size, - &aspace, &cycle, &dwidth); - - return size; - break; - case VME_SLAVE: - retval = vme_slave_get(resource, &enabled, &base, &size, - &buf_base, &aspace, &cycle); - - return size; - break; - case VME_DMA: - return 0; - break; - default: - printk(KERN_ERR "Unknown resource type\n"); - return 0; - break; - } -} -EXPORT_SYMBOL(vme_get_size); - -static int vme_check_window(vme_address_t aspace, unsigned long long vme_base, - unsigned long long size) -{ - int retval = 0; - - switch (aspace) { - case VME_A16: - if (((vme_base + size) > VME_A16_MAX) || - (vme_base > VME_A16_MAX)) - retval = -EFAULT; - break; - case VME_A24: - if (((vme_base + size) > VME_A24_MAX) || - (vme_base > VME_A24_MAX)) - retval = -EFAULT; - break; - case VME_A32: - if (((vme_base + size) > VME_A32_MAX) || - (vme_base > VME_A32_MAX)) - retval = -EFAULT; - break; - case VME_A64: - /* - * Any value held in an unsigned long long can be used as the - * base - */ - break; - case VME_CRCSR: - if (((vme_base + size) > VME_CRCSR_MAX) || - (vme_base > VME_CRCSR_MAX)) - retval = -EFAULT; - break; - case VME_USER1: - case VME_USER2: - case VME_USER3: - case VME_USER4: - /* User Defined */ - break; - default: - printk(KERN_ERR "Invalid address space\n"); - retval = -EINVAL; - break; - } - - return retval; -} - -/* - * Request a slave image with specific attributes, return some unique - * identifier. - */ -struct vme_resource *vme_slave_request(struct device *dev, - vme_address_t address, vme_cycle_t cycle) -{ - struct vme_bridge *bridge; - struct list_head *slave_pos = NULL; - struct vme_slave_resource *allocated_image = NULL; - struct vme_slave_resource *slave_image = NULL; - struct vme_resource *resource = NULL; - - bridge = dev_to_bridge(dev); - if (bridge == NULL) { - printk(KERN_ERR "Can't find VME bus\n"); - goto err_bus; - } - - /* Loop through slave resources */ - list_for_each(slave_pos, &(bridge->slave_resources)) { - slave_image = list_entry(slave_pos, - struct vme_slave_resource, list); - - if (slave_image == NULL) { - printk(KERN_ERR "Registered NULL Slave resource\n"); - continue; - } - - /* Find an unlocked and compatible image */ - mutex_lock(&(slave_image->mtx)); - if (((slave_image->address_attr & address) == address) && - ((slave_image->cycle_attr & cycle) == cycle) && - (slave_image->locked == 0)) { - - slave_image->locked = 1; - mutex_unlock(&(slave_image->mtx)); - allocated_image = slave_image; - break; - } - mutex_unlock(&(slave_image->mtx)); - } - - /* No free image */ - if (allocated_image == NULL) - goto err_image; - - resource = kmalloc(sizeof(struct vme_resource), GFP_KERNEL); - if (resource == NULL) { - printk(KERN_WARNING "Unable to allocate resource structure\n"); - goto err_alloc; - } - resource->type = VME_SLAVE; - resource->entry = &(allocated_image->list); - - return resource; - -err_alloc: - /* Unlock image */ - mutex_lock(&(slave_image->mtx)); - slave_image->locked = 0; - mutex_unlock(&(slave_image->mtx)); -err_image: -err_bus: - return NULL; -} -EXPORT_SYMBOL(vme_slave_request); - -int vme_slave_set(struct vme_resource *resource, int enabled, - unsigned long long vme_base, unsigned long long size, - dma_addr_t buf_base, vme_address_t aspace, vme_cycle_t cycle) -{ - struct vme_bridge *bridge = find_bridge(resource); - struct vme_slave_resource *image; - int retval; - - if (resource->type != VME_SLAVE) { - printk(KERN_ERR "Not a slave resource\n"); - return -EINVAL; - } - - image = list_entry(resource->entry, struct vme_slave_resource, list); - - if (bridge->slave_set == NULL) { - printk(KERN_ERR "Function not supported\n"); - return -ENOSYS; - } - - if (!(((image->address_attr & aspace) == aspace) && - ((image->cycle_attr & cycle) == cycle))) { - printk(KERN_ERR "Invalid attributes\n"); - return -EINVAL; - } - - retval = vme_check_window(aspace, vme_base, size); - if (retval) - return retval; - - return bridge->slave_set(image, enabled, vme_base, size, buf_base, - aspace, cycle); -} -EXPORT_SYMBOL(vme_slave_set); - -int vme_slave_get(struct vme_resource *resource, int *enabled, - unsigned long long *vme_base, unsigned long long *size, - dma_addr_t *buf_base, vme_address_t *aspace, vme_cycle_t *cycle) -{ - struct vme_bridge *bridge = find_bridge(resource); - struct vme_slave_resource *image; - - if (resource->type != VME_SLAVE) { - printk(KERN_ERR "Not a slave resource\n"); - return -EINVAL; - } - - image = list_entry(resource->entry, struct vme_slave_resource, list); - - if (bridge->slave_get == NULL) { - printk(KERN_ERR "vme_slave_get not supported\n"); - return -EINVAL; - } - - return bridge->slave_get(image, enabled, vme_base, size, buf_base, - aspace, cycle); -} -EXPORT_SYMBOL(vme_slave_get); - -void vme_slave_free(struct vme_resource *resource) -{ - struct vme_slave_resource *slave_image; - - if (resource->type != VME_SLAVE) { - printk(KERN_ERR "Not a slave resource\n"); - return; - } - - slave_image = list_entry(resource->entry, struct vme_slave_resource, - list); - if (slave_image == NULL) { - printk(KERN_ERR "Can't find slave resource\n"); - return; - } - - /* Unlock image */ - mutex_lock(&(slave_image->mtx)); - if (slave_image->locked == 0) - printk(KERN_ERR "Image is already free\n"); - - slave_image->locked = 0; - mutex_unlock(&(slave_image->mtx)); - - /* Free up resource memory */ - kfree(resource); -} -EXPORT_SYMBOL(vme_slave_free); - -/* - * Request a master image with specific attributes, return some unique - * identifier. - */ -struct vme_resource *vme_master_request(struct device *dev, - vme_address_t address, vme_cycle_t cycle, vme_width_t dwidth) -{ - struct vme_bridge *bridge; - struct list_head *master_pos = NULL; - struct vme_master_resource *allocated_image = NULL; - struct vme_master_resource *master_image = NULL; - struct vme_resource *resource = NULL; - - bridge = dev_to_bridge(dev); - if (bridge == NULL) { - printk(KERN_ERR "Can't find VME bus\n"); - goto err_bus; - } - - /* Loop through master resources */ - list_for_each(master_pos, &(bridge->master_resources)) { - master_image = list_entry(master_pos, - struct vme_master_resource, list); - - if (master_image == NULL) { - printk(KERN_WARNING "Registered NULL master resource\n"); - continue; - } - - /* Find an unlocked and compatible image */ - spin_lock(&(master_image->lock)); - if (((master_image->address_attr & address) == address) && - ((master_image->cycle_attr & cycle) == cycle) && - ((master_image->width_attr & dwidth) == dwidth) && - (master_image->locked == 0)) { - - master_image->locked = 1; - spin_unlock(&(master_image->lock)); - allocated_image = master_image; - break; - } - spin_unlock(&(master_image->lock)); - } - - /* Check to see if we found a resource */ - if (allocated_image == NULL) { - printk(KERN_ERR "Can't find a suitable resource\n"); - goto err_image; - } - - resource = kmalloc(sizeof(struct vme_resource), GFP_KERNEL); - if (resource == NULL) { - printk(KERN_ERR "Unable to allocate resource structure\n"); - goto err_alloc; - } - resource->type = VME_MASTER; - resource->entry = &(allocated_image->list); - - return resource; - - kfree(resource); -err_alloc: - /* Unlock image */ - spin_lock(&(master_image->lock)); - master_image->locked = 0; - spin_unlock(&(master_image->lock)); -err_image: -err_bus: - return NULL; -} -EXPORT_SYMBOL(vme_master_request); - -int vme_master_set(struct vme_resource *resource, int enabled, - unsigned long long vme_base, unsigned long long size, - vme_address_t aspace, vme_cycle_t cycle, vme_width_t dwidth) -{ - struct vme_bridge *bridge = find_bridge(resource); - struct vme_master_resource *image; - int retval; - - if (resource->type != VME_MASTER) { - printk(KERN_ERR "Not a master resource\n"); - return -EINVAL; - } - - image = list_entry(resource->entry, struct vme_master_resource, list); - - if (bridge->master_set == NULL) { - printk(KERN_WARNING "vme_master_set not supported\n"); - return -EINVAL; - } - - if (!(((image->address_attr & aspace) == aspace) && - ((image->cycle_attr & cycle) == cycle) && - ((image->width_attr & dwidth) == dwidth))) { - printk(KERN_WARNING "Invalid attributes\n"); - return -EINVAL; - } - - retval = vme_check_window(aspace, vme_base, size); - if (retval) - return retval; - - return bridge->master_set(image, enabled, vme_base, size, aspace, - cycle, dwidth); -} -EXPORT_SYMBOL(vme_master_set); - -int vme_master_get(struct vme_resource *resource, int *enabled, - unsigned long long *vme_base, unsigned long long *size, - vme_address_t *aspace, vme_cycle_t *cycle, vme_width_t *dwidth) -{ - struct vme_bridge *bridge = find_bridge(resource); - struct vme_master_resource *image; - - if (resource->type != VME_MASTER) { - printk(KERN_ERR "Not a master resource\n"); - return -EINVAL; - } - - image = list_entry(resource->entry, struct vme_master_resource, list); - - if (bridge->master_get == NULL) { - printk(KERN_WARNING "vme_master_set not supported\n"); - return -EINVAL; - } - - return bridge->master_get(image, enabled, vme_base, size, aspace, - cycle, dwidth); -} -EXPORT_SYMBOL(vme_master_get); - -/* - * Read data out of VME space into a buffer. - */ -ssize_t vme_master_read(struct vme_resource *resource, void *buf, size_t count, - loff_t offset) -{ - struct vme_bridge *bridge = find_bridge(resource); - struct vme_master_resource *image; - size_t length; - - if (bridge->master_read == NULL) { - printk(KERN_WARNING "Reading from resource not supported\n"); - return -EINVAL; - } - - if (resource->type != VME_MASTER) { - printk(KERN_ERR "Not a master resource\n"); - return -EINVAL; - } - - image = list_entry(resource->entry, struct vme_master_resource, list); - - length = vme_get_size(resource); - - if (offset > length) { - printk(KERN_WARNING "Invalid Offset\n"); - return -EFAULT; - } - - if ((offset + count) > length) - count = length - offset; - - return bridge->master_read(image, buf, count, offset); - -} -EXPORT_SYMBOL(vme_master_read); - -/* - * Write data out to VME space from a buffer. - */ -ssize_t vme_master_write(struct vme_resource *resource, void *buf, - size_t count, loff_t offset) -{ - struct vme_bridge *bridge = find_bridge(resource); - struct vme_master_resource *image; - size_t length; - - if (bridge->master_write == NULL) { - printk(KERN_WARNING "Writing to resource not supported\n"); - return -EINVAL; - } - - if (resource->type != VME_MASTER) { - printk(KERN_ERR "Not a master resource\n"); - return -EINVAL; - } - - image = list_entry(resource->entry, struct vme_master_resource, list); - - length = vme_get_size(resource); - - if (offset > length) { - printk(KERN_WARNING "Invalid Offset\n"); - return -EFAULT; - } - - if ((offset + count) > length) - count = length - offset; - - return bridge->master_write(image, buf, count, offset); -} -EXPORT_SYMBOL(vme_master_write); - -/* - * Perform RMW cycle to provided location. - */ -unsigned int vme_master_rmw(struct vme_resource *resource, unsigned int mask, - unsigned int compare, unsigned int swap, loff_t offset) -{ - struct vme_bridge *bridge = find_bridge(resource); - struct vme_master_resource *image; - - if (bridge->master_rmw == NULL) { - printk(KERN_WARNING "Writing to resource not supported\n"); - return -EINVAL; - } - - if (resource->type != VME_MASTER) { - printk(KERN_ERR "Not a master resource\n"); - return -EINVAL; - } - - image = list_entry(resource->entry, struct vme_master_resource, list); - - return bridge->master_rmw(image, mask, compare, swap, offset); -} -EXPORT_SYMBOL(vme_master_rmw); - -void vme_master_free(struct vme_resource *resource) -{ - struct vme_master_resource *master_image; - - if (resource->type != VME_MASTER) { - printk(KERN_ERR "Not a master resource\n"); - return; - } - - master_image = list_entry(resource->entry, struct vme_master_resource, - list); - if (master_image == NULL) { - printk(KERN_ERR "Can't find master resource\n"); - return; - } - - /* Unlock image */ - spin_lock(&(master_image->lock)); - if (master_image->locked == 0) - printk(KERN_ERR "Image is already free\n"); - - master_image->locked = 0; - spin_unlock(&(master_image->lock)); - - /* Free up resource memory */ - kfree(resource); -} -EXPORT_SYMBOL(vme_master_free); - -/* - * Request a DMA controller with specific attributes, return some unique - * identifier. - */ -struct vme_resource *vme_dma_request(struct device *dev, vme_dma_route_t route) -{ - struct vme_bridge *bridge; - struct list_head *dma_pos = NULL; - struct vme_dma_resource *allocated_ctrlr = NULL; - struct vme_dma_resource *dma_ctrlr = NULL; - struct vme_resource *resource = NULL; - - /* XXX Not checking resource attributes */ - printk(KERN_ERR "No VME resource Attribute tests done\n"); - - bridge = dev_to_bridge(dev); - if (bridge == NULL) { - printk(KERN_ERR "Can't find VME bus\n"); - goto err_bus; - } - - /* Loop through DMA resources */ - list_for_each(dma_pos, &(bridge->dma_resources)) { - dma_ctrlr = list_entry(dma_pos, - struct vme_dma_resource, list); - - if (dma_ctrlr == NULL) { - printk(KERN_ERR "Registered NULL DMA resource\n"); - continue; - } - - /* Find an unlocked and compatible controller */ - mutex_lock(&(dma_ctrlr->mtx)); - if (((dma_ctrlr->route_attr & route) == route) && - (dma_ctrlr->locked == 0)) { - - dma_ctrlr->locked = 1; - mutex_unlock(&(dma_ctrlr->mtx)); - allocated_ctrlr = dma_ctrlr; - break; - } - mutex_unlock(&(dma_ctrlr->mtx)); - } - - /* Check to see if we found a resource */ - if (allocated_ctrlr == NULL) - goto err_ctrlr; - - resource = kmalloc(sizeof(struct vme_resource), GFP_KERNEL); - if (resource == NULL) { - printk(KERN_WARNING "Unable to allocate resource structure\n"); - goto err_alloc; - } - resource->type = VME_DMA; - resource->entry = &(allocated_ctrlr->list); - - return resource; - -err_alloc: - /* Unlock image */ - mutex_lock(&(dma_ctrlr->mtx)); - dma_ctrlr->locked = 0; - mutex_unlock(&(dma_ctrlr->mtx)); -err_ctrlr: -err_bus: - return NULL; -} -EXPORT_SYMBOL(vme_dma_request); - -/* - * Start new list - */ -struct vme_dma_list *vme_new_dma_list(struct vme_resource *resource) -{ - struct vme_dma_resource *ctrlr; - struct vme_dma_list *dma_list; - - if (resource->type != VME_DMA) { - printk(KERN_ERR "Not a DMA resource\n"); - return NULL; - } - - ctrlr = list_entry(resource->entry, struct vme_dma_resource, list); - - dma_list = kmalloc(sizeof(struct vme_dma_list), GFP_KERNEL); - if (dma_list == NULL) { - printk(KERN_ERR "Unable to allocate memory for new dma list\n"); - return NULL; - } - INIT_LIST_HEAD(&(dma_list->entries)); - dma_list->parent = ctrlr; - mutex_init(&(dma_list->mtx)); - - return dma_list; -} -EXPORT_SYMBOL(vme_new_dma_list); - -/* - * Create "Pattern" type attributes - */ -struct vme_dma_attr *vme_dma_pattern_attribute(u32 pattern, - vme_pattern_t type) -{ - struct vme_dma_attr *attributes; - struct vme_dma_pattern *pattern_attr; - - attributes = kmalloc(sizeof(struct vme_dma_attr), GFP_KERNEL); - if (attributes == NULL) { - printk(KERN_ERR "Unable to allocate memory for attributes " - "structure\n"); - goto err_attr; - } - - pattern_attr = kmalloc(sizeof(struct vme_dma_pattern), GFP_KERNEL); - if (pattern_attr == NULL) { - printk(KERN_ERR "Unable to allocate memory for pattern " - "attributes\n"); - goto err_pat; - } - - attributes->type = VME_DMA_PATTERN; - attributes->private = (void *)pattern_attr; - - pattern_attr->pattern = pattern; - pattern_attr->type = type; - - return attributes; - - kfree(pattern_attr); -err_pat: - kfree(attributes); -err_attr: - return NULL; -} -EXPORT_SYMBOL(vme_dma_pattern_attribute); - -/* - * Create "PCI" type attributes - */ -struct vme_dma_attr *vme_dma_pci_attribute(dma_addr_t address) -{ - struct vme_dma_attr *attributes; - struct vme_dma_pci *pci_attr; - - /* XXX Run some sanity checks here */ - - attributes = kmalloc(sizeof(struct vme_dma_attr), GFP_KERNEL); - if (attributes == NULL) { - printk(KERN_ERR "Unable to allocate memory for attributes " - "structure\n"); - goto err_attr; - } - - pci_attr = kmalloc(sizeof(struct vme_dma_pci), GFP_KERNEL); - if (pci_attr == NULL) { - printk(KERN_ERR "Unable to allocate memory for pci " - "attributes\n"); - goto err_pci; - } - - - - attributes->type = VME_DMA_PCI; - attributes->private = (void *)pci_attr; - - pci_attr->address = address; - - return attributes; - - kfree(pci_attr); -err_pci: - kfree(attributes); -err_attr: - return NULL; -} -EXPORT_SYMBOL(vme_dma_pci_attribute); - -/* - * Create "VME" type attributes - */ -struct vme_dma_attr *vme_dma_vme_attribute(unsigned long long address, - vme_address_t aspace, vme_cycle_t cycle, vme_width_t dwidth) -{ - struct vme_dma_attr *attributes; - struct vme_dma_vme *vme_attr; - - attributes = kmalloc( - sizeof(struct vme_dma_attr), GFP_KERNEL); - if (attributes == NULL) { - printk(KERN_ERR "Unable to allocate memory for attributes " - "structure\n"); - goto err_attr; - } - - vme_attr = kmalloc(sizeof(struct vme_dma_vme), GFP_KERNEL); - if (vme_attr == NULL) { - printk(KERN_ERR "Unable to allocate memory for vme " - "attributes\n"); - goto err_vme; - } - - attributes->type = VME_DMA_VME; - attributes->private = (void *)vme_attr; - - vme_attr->address = address; - vme_attr->aspace = aspace; - vme_attr->cycle = cycle; - vme_attr->dwidth = dwidth; - - return attributes; - - kfree(vme_attr); -err_vme: - kfree(attributes); -err_attr: - return NULL; -} -EXPORT_SYMBOL(vme_dma_vme_attribute); - -/* - * Free attribute - */ -void vme_dma_free_attribute(struct vme_dma_attr *attributes) -{ - kfree(attributes->private); - kfree(attributes); -} -EXPORT_SYMBOL(vme_dma_free_attribute); - -int vme_dma_list_add(struct vme_dma_list *list, struct vme_dma_attr *src, - struct vme_dma_attr *dest, size_t count) -{ - struct vme_bridge *bridge = list->parent->parent; - int retval; - - if (bridge->dma_list_add == NULL) { - printk(KERN_WARNING "Link List DMA generation not supported\n"); - return -EINVAL; - } - - if (!mutex_trylock(&(list->mtx))) { - printk(KERN_ERR "Link List already submitted\n"); - return -EINVAL; - } - - retval = bridge->dma_list_add(list, src, dest, count); - - mutex_unlock(&(list->mtx)); - - return retval; -} -EXPORT_SYMBOL(vme_dma_list_add); - -int vme_dma_list_exec(struct vme_dma_list *list) -{ - struct vme_bridge *bridge = list->parent->parent; - int retval; - - if (bridge->dma_list_exec == NULL) { - printk(KERN_ERR "Link List DMA execution not supported\n"); - return -EINVAL; - } - - mutex_lock(&(list->mtx)); - - retval = bridge->dma_list_exec(list); - - mutex_unlock(&(list->mtx)); - - return retval; -} -EXPORT_SYMBOL(vme_dma_list_exec); - -int vme_dma_list_free(struct vme_dma_list *list) -{ - struct vme_bridge *bridge = list->parent->parent; - int retval; - - if (bridge->dma_list_empty == NULL) { - printk(KERN_WARNING "Emptying of Link Lists not supported\n"); - return -EINVAL; - } - - if (!mutex_trylock(&(list->mtx))) { - printk(KERN_ERR "Link List in use\n"); - return -EINVAL; - } - - /* - * Empty out all of the entries from the dma list. We need to go to the - * low level driver as dma entries are driver specific. - */ - retval = bridge->dma_list_empty(list); - if (retval) { - printk(KERN_ERR "Unable to empty link-list entries\n"); - mutex_unlock(&(list->mtx)); - return retval; - } - mutex_unlock(&(list->mtx)); - kfree(list); - - return retval; -} -EXPORT_SYMBOL(vme_dma_list_free); - -int vme_dma_free(struct vme_resource *resource) -{ - struct vme_dma_resource *ctrlr; - - if (resource->type != VME_DMA) { - printk(KERN_ERR "Not a DMA resource\n"); - return -EINVAL; - } - - ctrlr = list_entry(resource->entry, struct vme_dma_resource, list); - - if (!mutex_trylock(&(ctrlr->mtx))) { - printk(KERN_ERR "Resource busy, can't free\n"); - return -EBUSY; - } - - if (!(list_empty(&(ctrlr->pending)) && list_empty(&(ctrlr->running)))) { - printk(KERN_WARNING "Resource still processing transfers\n"); - mutex_unlock(&(ctrlr->mtx)); - return -EBUSY; - } - - ctrlr->locked = 0; - - mutex_unlock(&(ctrlr->mtx)); - - return 0; -} -EXPORT_SYMBOL(vme_dma_free); - -void vme_irq_handler(struct vme_bridge *bridge, int level, int statid) -{ - void (*call)(int, int, void *); - void *priv_data; - - call = bridge->irq[level - 1].callback[statid].func; - priv_data = bridge->irq[level - 1].callback[statid].priv_data; - - if (call != NULL) - call(level, statid, priv_data); - else - printk(KERN_WARNING "Spurilous VME interrupt, level:%x, " - "vector:%x\n", level, statid); -} -EXPORT_SYMBOL(vme_irq_handler); - -int vme_irq_request(struct device *dev, int level, int statid, - void (*callback)(int, int, void *), - void *priv_data) -{ - struct vme_bridge *bridge; - - bridge = dev_to_bridge(dev); - if (bridge == NULL) { - printk(KERN_ERR "Can't find VME bus\n"); - return -EINVAL; - } - - if ((level < 1) || (level > 7)) { - printk(KERN_ERR "Invalid interrupt level\n"); - return -EINVAL; - } - - if (bridge->irq_set == NULL) { - printk(KERN_ERR "Configuring interrupts not supported\n"); - return -EINVAL; - } - - mutex_lock(&(bridge->irq_mtx)); - - if (bridge->irq[level - 1].callback[statid].func) { - mutex_unlock(&(bridge->irq_mtx)); - printk(KERN_WARNING "VME Interrupt already taken\n"); - return -EBUSY; - } - - bridge->irq[level - 1].count++; - bridge->irq[level - 1].callback[statid].priv_data = priv_data; - bridge->irq[level - 1].callback[statid].func = callback; - - /* Enable IRQ level */ - bridge->irq_set(bridge, level, 1, 1); - - mutex_unlock(&(bridge->irq_mtx)); - - return 0; -} -EXPORT_SYMBOL(vme_irq_request); - -void vme_irq_free(struct device *dev, int level, int statid) -{ - struct vme_bridge *bridge; - - bridge = dev_to_bridge(dev); - if (bridge == NULL) { - printk(KERN_ERR "Can't find VME bus\n"); - return; - } - - if ((level < 1) || (level > 7)) { - printk(KERN_ERR "Invalid interrupt level\n"); - return; - } - - if (bridge->irq_set == NULL) { - printk(KERN_ERR "Configuring interrupts not supported\n"); - return; - } - - mutex_lock(&(bridge->irq_mtx)); - - bridge->irq[level - 1].count--; - - /* Disable IRQ level if no more interrupts attached at this level*/ - if (bridge->irq[level - 1].count == 0) - bridge->irq_set(bridge, level, 0, 1); - - bridge->irq[level - 1].callback[statid].func = NULL; - bridge->irq[level - 1].callback[statid].priv_data = NULL; - - mutex_unlock(&(bridge->irq_mtx)); -} -EXPORT_SYMBOL(vme_irq_free); - -int vme_irq_generate(struct device *dev, int level, int statid) -{ - struct vme_bridge *bridge; - - bridge = dev_to_bridge(dev); - if (bridge == NULL) { - printk(KERN_ERR "Can't find VME bus\n"); - return -EINVAL; - } - - if ((level < 1) || (level > 7)) { - printk(KERN_WARNING "Invalid interrupt level\n"); - return -EINVAL; - } - - if (bridge->irq_generate == NULL) { - printk(KERN_WARNING "Interrupt generation not supported\n"); - return -EINVAL; - } - - return bridge->irq_generate(bridge, level, statid); -} -EXPORT_SYMBOL(vme_irq_generate); - -/* - * Request the location monitor, return resource or NULL - */ -struct vme_resource *vme_lm_request(struct device *dev) -{ - struct vme_bridge *bridge; - struct list_head *lm_pos = NULL; - struct vme_lm_resource *allocated_lm = NULL; - struct vme_lm_resource *lm = NULL; - struct vme_resource *resource = NULL; - - bridge = dev_to_bridge(dev); - if (bridge == NULL) { - printk(KERN_ERR "Can't find VME bus\n"); - goto err_bus; - } - - /* Loop through DMA resources */ - list_for_each(lm_pos, &(bridge->lm_resources)) { - lm = list_entry(lm_pos, - struct vme_lm_resource, list); - - if (lm == NULL) { - printk(KERN_ERR "Registered NULL Location Monitor " - "resource\n"); - continue; - } - - /* Find an unlocked controller */ - mutex_lock(&(lm->mtx)); - if (lm->locked == 0) { - lm->locked = 1; - mutex_unlock(&(lm->mtx)); - allocated_lm = lm; - break; - } - mutex_unlock(&(lm->mtx)); - } - - /* Check to see if we found a resource */ - if (allocated_lm == NULL) - goto err_lm; - - resource = kmalloc(sizeof(struct vme_resource), GFP_KERNEL); - if (resource == NULL) { - printk(KERN_ERR "Unable to allocate resource structure\n"); - goto err_alloc; - } - resource->type = VME_LM; - resource->entry = &(allocated_lm->list); - - return resource; - -err_alloc: - /* Unlock image */ - mutex_lock(&(lm->mtx)); - lm->locked = 0; - mutex_unlock(&(lm->mtx)); -err_lm: -err_bus: - return NULL; -} -EXPORT_SYMBOL(vme_lm_request); - -int vme_lm_count(struct vme_resource *resource) -{ - struct vme_lm_resource *lm; - - if (resource->type != VME_LM) { - printk(KERN_ERR "Not a Location Monitor resource\n"); - return -EINVAL; - } - - lm = list_entry(resource->entry, struct vme_lm_resource, list); - - return lm->monitors; -} -EXPORT_SYMBOL(vme_lm_count); - -int vme_lm_set(struct vme_resource *resource, unsigned long long lm_base, - vme_address_t aspace, vme_cycle_t cycle) -{ - struct vme_bridge *bridge = find_bridge(resource); - struct vme_lm_resource *lm; - - if (resource->type != VME_LM) { - printk(KERN_ERR "Not a Location Monitor resource\n"); - return -EINVAL; - } - - lm = list_entry(resource->entry, struct vme_lm_resource, list); - - if (bridge->lm_set == NULL) { - printk(KERN_ERR "vme_lm_set not supported\n"); - return -EINVAL; - } - - return bridge->lm_set(lm, lm_base, aspace, cycle); -} -EXPORT_SYMBOL(vme_lm_set); - -int vme_lm_get(struct vme_resource *resource, unsigned long long *lm_base, - vme_address_t *aspace, vme_cycle_t *cycle) -{ - struct vme_bridge *bridge = find_bridge(resource); - struct vme_lm_resource *lm; - - if (resource->type != VME_LM) { - printk(KERN_ERR "Not a Location Monitor resource\n"); - return -EINVAL; - } - - lm = list_entry(resource->entry, struct vme_lm_resource, list); - - if (bridge->lm_get == NULL) { - printk(KERN_ERR "vme_lm_get not supported\n"); - return -EINVAL; - } - - return bridge->lm_get(lm, lm_base, aspace, cycle); -} -EXPORT_SYMBOL(vme_lm_get); - -int vme_lm_attach(struct vme_resource *resource, int monitor, - void (*callback)(int)) -{ - struct vme_bridge *bridge = find_bridge(resource); - struct vme_lm_resource *lm; - - if (resource->type != VME_LM) { - printk(KERN_ERR "Not a Location Monitor resource\n"); - return -EINVAL; - } - - lm = list_entry(resource->entry, struct vme_lm_resource, list); - - if (bridge->lm_attach == NULL) { - printk(KERN_ERR "vme_lm_attach not supported\n"); - return -EINVAL; - } - - return bridge->lm_attach(lm, monitor, callback); -} -EXPORT_SYMBOL(vme_lm_attach); - -int vme_lm_detach(struct vme_resource *resource, int monitor) -{ - struct vme_bridge *bridge = find_bridge(resource); - struct vme_lm_resource *lm; - - if (resource->type != VME_LM) { - printk(KERN_ERR "Not a Location Monitor resource\n"); - return -EINVAL; - } - - lm = list_entry(resource->entry, struct vme_lm_resource, list); - - if (bridge->lm_detach == NULL) { - printk(KERN_ERR "vme_lm_detach not supported\n"); - return -EINVAL; - } - - return bridge->lm_detach(lm, monitor); -} -EXPORT_SYMBOL(vme_lm_detach); - -void vme_lm_free(struct vme_resource *resource) -{ - struct vme_lm_resource *lm; - - if (resource->type != VME_LM) { - printk(KERN_ERR "Not a Location Monitor resource\n"); - return; - } - - lm = list_entry(resource->entry, struct vme_lm_resource, list); - - mutex_lock(&(lm->mtx)); - - /* XXX - * Check to see that there aren't any callbacks still attached, if - * there are we should probably be detaching them! - */ - - lm->locked = 0; - - mutex_unlock(&(lm->mtx)); - - kfree(resource); -} -EXPORT_SYMBOL(vme_lm_free); - -int vme_slot_get(struct device *bus) -{ - struct vme_bridge *bridge; - - bridge = dev_to_bridge(bus); - if (bridge == NULL) { - printk(KERN_ERR "Can't find VME bus\n"); - return -EINVAL; - } - - if (bridge->slot_get == NULL) { - printk(KERN_WARNING "vme_slot_get not supported\n"); - return -EINVAL; - } - - return bridge->slot_get(bridge); -} -EXPORT_SYMBOL(vme_slot_get); - - -/* - Bridge Registration --------------------------------------------------- */ - -static int vme_alloc_bus_num(void) -{ - int i; - - mutex_lock(&vme_bus_num_mtx); - for (i = 0; i < sizeof(vme_bus_numbers) * 8; i++) { - if (((vme_bus_numbers >> i) & 0x1) == 0) { - vme_bus_numbers |= (0x1 << i); - break; - } - } - mutex_unlock(&vme_bus_num_mtx); - - return i; -} - -static void vme_free_bus_num(int bus) -{ - mutex_lock(&vme_bus_num_mtx); - vme_bus_numbers |= ~(0x1 << bus); - mutex_unlock(&vme_bus_num_mtx); -} - -int vme_register_bridge(struct vme_bridge *bridge) -{ - struct device *dev; - int retval; - int i; - - bridge->num = vme_alloc_bus_num(); - - /* This creates 32 vme "slot" devices. This equates to a slot for each - * ID available in a system conforming to the ANSI/VITA 1-1994 - * specification. - */ - for (i = 0; i < VME_SLOTS_MAX; i++) { - dev = &(bridge->dev[i]); - memset(dev, 0, sizeof(struct device)); - - dev->parent = bridge->parent; - dev->bus = &(vme_bus_type); - /* - * We save a pointer to the bridge in platform_data so that we - * can get to it later. We keep driver_data for use by the - * driver that binds against the slot - */ - dev->platform_data = bridge; - dev_set_name(dev, "vme-%x.%x", bridge->num, i + 1); - - retval = device_register(dev); - if (retval) - goto err_reg; - } - - return retval; - - i = VME_SLOTS_MAX; -err_reg: - while (i > -1) { - dev = &(bridge->dev[i]); - device_unregister(dev); - } - vme_free_bus_num(bridge->num); - return retval; -} -EXPORT_SYMBOL(vme_register_bridge); - -void vme_unregister_bridge(struct vme_bridge *bridge) -{ - int i; - struct device *dev; - - - for (i = 0; i < VME_SLOTS_MAX; i++) { - dev = &(bridge->dev[i]); - device_unregister(dev); - } - vme_free_bus_num(bridge->num); -} -EXPORT_SYMBOL(vme_unregister_bridge); - - -/* - Driver Registration --------------------------------------------------- */ - -int vme_register_driver(struct vme_driver *drv) -{ - drv->driver.name = drv->name; - drv->driver.bus = &vme_bus_type; - - return driver_register(&drv->driver); -} -EXPORT_SYMBOL(vme_register_driver); - -void vme_unregister_driver(struct vme_driver *drv) -{ - driver_unregister(&drv->driver); -} -EXPORT_SYMBOL(vme_unregister_driver); - -/* - Bus Registration ------------------------------------------------------ */ - -static int vme_calc_slot(struct device *dev) -{ - struct vme_bridge *bridge; - int num; - - bridge = dev_to_bridge(dev); - - /* Determine slot number */ - num = 0; - while (num < VME_SLOTS_MAX) { - if (&(bridge->dev[num]) == dev) - break; - - num++; - } - if (num == VME_SLOTS_MAX) { - dev_err(dev, "Failed to identify slot\n"); - num = 0; - goto err_dev; - } - num++; - -err_dev: - return num; -} - -static struct vme_driver *dev_to_vme_driver(struct device *dev) -{ - if (dev->driver == NULL) - printk(KERN_ERR "Bugger dev->driver is NULL\n"); - - return container_of(dev->driver, struct vme_driver, driver); -} - -static int vme_bus_match(struct device *dev, struct device_driver *drv) -{ - struct vme_bridge *bridge; - struct vme_driver *driver; - int i, num; - - bridge = dev_to_bridge(dev); - driver = container_of(drv, struct vme_driver, driver); - - num = vme_calc_slot(dev); - if (!num) - goto err_dev; - - if (driver->bind_table == NULL) { - dev_err(dev, "Bind table NULL\n"); - goto err_table; - } - - i = 0; - while ((driver->bind_table[i].bus != 0) || - (driver->bind_table[i].slot != 0)) { - - if (bridge->num == driver->bind_table[i].bus) { - if (num == driver->bind_table[i].slot) - return 1; - - if (driver->bind_table[i].slot == VME_SLOT_ALL) - return 1; - - if ((driver->bind_table[i].slot == VME_SLOT_CURRENT) && - (num == vme_slot_get(dev))) - return 1; - } - i++; - } - -err_dev: -err_table: - return 0; -} - -static int vme_bus_probe(struct device *dev) -{ - struct vme_bridge *bridge; - struct vme_driver *driver; - int retval = -ENODEV; - - driver = dev_to_vme_driver(dev); - bridge = dev_to_bridge(dev); - - if (driver->probe != NULL) - retval = driver->probe(dev, bridge->num, vme_calc_slot(dev)); - - return retval; -} - -static int vme_bus_remove(struct device *dev) -{ - struct vme_bridge *bridge; - struct vme_driver *driver; - int retval = -ENODEV; - - driver = dev_to_vme_driver(dev); - bridge = dev_to_bridge(dev); - - if (driver->remove != NULL) - retval = driver->remove(dev, bridge->num, vme_calc_slot(dev)); - - return retval; -} - -struct bus_type vme_bus_type = { - .name = "vme", - .match = vme_bus_match, - .probe = vme_bus_probe, - .remove = vme_bus_remove, -}; -EXPORT_SYMBOL(vme_bus_type); - -static int __init vme_init(void) -{ - return bus_register(&vme_bus_type); -} - -static void __exit vme_exit(void) -{ - bus_unregister(&vme_bus_type); -} - -MODULE_DESCRIPTION("VME bridge driver framework"); -MODULE_AUTHOR("Martyn Welch <martyn.welch@ge.com"); -MODULE_LICENSE("GPL"); - -module_init(vme_init); -module_exit(vme_exit); diff --git a/drivers/staging/vme/vme.h b/drivers/staging/vme/vme.h deleted file mode 100644 index 48768ca97e1..00000000000 --- a/drivers/staging/vme/vme.h +++ /dev/null @@ -1,170 +0,0 @@ -#ifndef _VME_H_ -#define _VME_H_ - -/* Resource Type */ -enum vme_resource_type { - VME_MASTER, - VME_SLAVE, - VME_DMA, - VME_LM -}; - -/* VME Address Spaces */ -typedef u32 vme_address_t; -#define VME_A16 0x1 -#define VME_A24 0x2 -#define VME_A32 0x4 -#define VME_A64 0x8 -#define VME_CRCSR 0x10 -#define VME_USER1 0x20 -#define VME_USER2 0x40 -#define VME_USER3 0x80 -#define VME_USER4 0x100 - -#define VME_A16_MAX 0x10000ULL -#define VME_A24_MAX 0x1000000ULL -#define VME_A32_MAX 0x100000000ULL -#define VME_A64_MAX 0x10000000000000000ULL -#define VME_CRCSR_MAX 0x1000000ULL - - -/* VME Cycle Types */ -typedef u32 vme_cycle_t; -#define VME_SCT 0x1 -#define VME_BLT 0x2 -#define VME_MBLT 0x4 -#define VME_2eVME 0x8 -#define VME_2eSST 0x10 -#define VME_2eSSTB 0x20 - -#define VME_2eSST160 0x100 -#define VME_2eSST267 0x200 -#define VME_2eSST320 0x400 - -#define VME_SUPER 0x1000 -#define VME_USER 0x2000 -#define VME_PROG 0x4000 -#define VME_DATA 0x8000 - -/* VME Data Widths */ -typedef u32 vme_width_t; -#define VME_D8 0x1 -#define VME_D16 0x2 -#define VME_D32 0x4 -#define VME_D64 0x8 - -/* Arbitration Scheduling Modes */ -typedef u32 vme_arbitration_t; -#define VME_R_ROBIN_MODE 0x1 -#define VME_PRIORITY_MODE 0x2 - -typedef u32 vme_dma_t; -#define VME_DMA_PATTERN (1<<0) -#define VME_DMA_PCI (1<<1) -#define VME_DMA_VME (1<<2) - -typedef u32 vme_pattern_t; -#define VME_DMA_PATTERN_BYTE (1<<0) -#define VME_DMA_PATTERN_WORD (1<<1) -#define VME_DMA_PATTERN_INCREMENT (1<<2) - -typedef u32 vme_dma_route_t; -#define VME_DMA_VME_TO_MEM (1<<0) -#define VME_DMA_MEM_TO_VME (1<<1) -#define VME_DMA_VME_TO_VME (1<<2) -#define VME_DMA_MEM_TO_MEM (1<<3) -#define VME_DMA_PATTERN_TO_VME (1<<4) -#define VME_DMA_PATTERN_TO_MEM (1<<5) - -struct vme_dma_attr { - vme_dma_t type; - void *private; -}; - -struct vme_resource { - enum vme_resource_type type; - struct list_head *entry; -}; - -extern struct bus_type vme_bus_type; - -#define VME_SLOT_CURRENT -1 -#define VME_SLOT_ALL -2 - -struct vme_device_id { - int bus; - int slot; -}; - -struct vme_driver { - struct list_head node; - char *name; - const struct vme_device_id *bind_table; - int (*probe) (struct device *, int, int); - int (*remove) (struct device *, int, int); - void (*shutdown) (void); - struct device_driver driver; -}; - -void *vme_alloc_consistent(struct vme_resource *, size_t, dma_addr_t *); -void vme_free_consistent(struct vme_resource *, size_t, void *, - dma_addr_t); - -size_t vme_get_size(struct vme_resource *); - -struct vme_resource *vme_slave_request(struct device *, vme_address_t, - vme_cycle_t); -int vme_slave_set(struct vme_resource *, int, unsigned long long, - unsigned long long, dma_addr_t, vme_address_t, vme_cycle_t); -int vme_slave_get(struct vme_resource *, int *, unsigned long long *, - unsigned long long *, dma_addr_t *, vme_address_t *, vme_cycle_t *); -void vme_slave_free(struct vme_resource *); - -struct vme_resource *vme_master_request(struct device *, vme_address_t, - vme_cycle_t, vme_width_t); -int vme_master_set(struct vme_resource *, int, unsigned long long, - unsigned long long, vme_address_t, vme_cycle_t, vme_width_t); -int vme_master_get(struct vme_resource *, int *, unsigned long long *, - unsigned long long *, vme_address_t *, vme_cycle_t *, vme_width_t *); -ssize_t vme_master_read(struct vme_resource *, void *, size_t, loff_t); -ssize_t vme_master_write(struct vme_resource *, void *, size_t, loff_t); -unsigned int vme_master_rmw(struct vme_resource *, unsigned int, unsigned int, - unsigned int, loff_t); -void vme_master_free(struct vme_resource *); - -struct vme_resource *vme_dma_request(struct device *, vme_dma_route_t); -struct vme_dma_list *vme_new_dma_list(struct vme_resource *); -struct vme_dma_attr *vme_dma_pattern_attribute(u32, vme_pattern_t); -struct vme_dma_attr *vme_dma_pci_attribute(dma_addr_t); -struct vme_dma_attr *vme_dma_vme_attribute(unsigned long long, vme_address_t, - vme_cycle_t, vme_width_t); -void vme_dma_free_attribute(struct vme_dma_attr *); -int vme_dma_list_add(struct vme_dma_list *, struct vme_dma_attr *, - struct vme_dma_attr *, size_t); -int vme_dma_list_exec(struct vme_dma_list *); -int vme_dma_list_free(struct vme_dma_list *); -int vme_dma_free(struct vme_resource *); - -int vme_irq_request(struct device *, int, int, - void (*callback)(int, int, void *), void *); -void vme_irq_free(struct device *, int, int); -int vme_irq_generate(struct device *, int, int); - -struct vme_resource * vme_lm_request(struct device *); -int vme_lm_count(struct vme_resource *); -int vme_lm_set(struct vme_resource *, unsigned long long, vme_address_t, - vme_cycle_t); -int vme_lm_get(struct vme_resource *, unsigned long long *, vme_address_t *, - vme_cycle_t *); -int vme_lm_attach(struct vme_resource *, int, void (*callback)(int)); -int vme_lm_detach(struct vme_resource *, int); -void vme_lm_free(struct vme_resource *); - -int vme_slot_get(struct device *); - -int vme_register_driver(struct vme_driver *); -void vme_unregister_driver(struct vme_driver *); - - -#endif /* _VME_H_ */ - diff --git a/drivers/staging/vme/vme_api.txt b/drivers/staging/vme/vme_api.txt deleted file mode 100644 index a910a0c4388..00000000000 --- a/drivers/staging/vme/vme_api.txt +++ /dev/null @@ -1,383 +0,0 @@ - VME Device Driver API - ===================== - -Driver registration -=================== - -As with other subsystems within the Linux kernel, VME device drivers register -with the VME subsystem, typically called from the devices init routine. This is -achieved via a call to the follwoing function: - - int vme_register_driver (struct vme_driver *driver); - -If driver registration is successful this function returns zero, if an error -occurred a negative error code will be returned. - -A pointer to a structure of type 'vme_driver' must be provided to the -registration function. The structure is as follows: - - struct vme_driver { - struct list_head node; - char *name; - const struct vme_device_id *bind_table; - int (*probe) (struct device *, int, int); - int (*remove) (struct device *, int, int); - void (*shutdown) (void); - struct device_driver driver; - }; - -At the minimum, the '.name', '.probe' and '.bind_table' elements of this -structure should be correctly set. The '.name' element is a pointer to a string -holding the device driver's name. The '.probe' element should contain a pointer -to the probe routine. - -The arguments of the probe routine are as follows: - - probe(struct device *dev, int bus, int slot); - -The '.bind_table' is a pointer to an array of type 'vme_device_id': - - struct vme_device_id { - int bus; - int slot; - }; - -Each structure in this array should provide a bus and slot number where the core -should probe, using the driver's probe routine, for a device on the specified -VME bus. - -The VME subsystem supports a single VME driver per 'slot'. There are considered -to be 32 slots per bus, one for each slot-ID as defined in the ANSI/VITA 1-1994 -specification and are analogious to the physical slots on the VME backplane. - -A function is also provided to unregister the driver from the VME core and is -usually called from the device driver's exit routine: - - void vme_unregister_driver (struct vme_driver *driver); - - -Resource management -=================== - -Once a driver has registered with the VME core the provided probe routine will -be called for each of the bus/slot combination that becomes valid as VME buses -are themselves registered. The probe routine is passed a pointer to the devices -device structure. This pointer should be saved, it will be required for -requesting VME resources. - -The driver can request ownership of one or more master windows, slave windows -and/or dma channels. Rather than allowing the device driver to request a -specific window or DMA channel (which may be used by a different driver) this -driver allows a resource to be assigned based on the required attributes of the -driver in question: - - struct vme_resource * vme_master_request(struct device *dev, - vme_address_t aspace, vme_cycle_t cycle, vme_width_t width); - - struct vme_resource * vme_slave_request(struct device *dev, - vme_address_t aspace, vme_cycle_t cycle); - - struct vme_resource *vme_dma_request(struct device *dev, - vme_dma_route_t route); - -For slave windows these attributes are split into those of type 'vme_address_t' -and 'vme_cycle_t'. Master windows add a further set of attributes -'vme_cycle_t'. These attributes are defined as bitmasks and as such any -combination of the attributes can be requested for a single window, the core -will assign a window that meets the requirements, returning a pointer of type -vme_resource that should be used to identify the allocated resource when it is -used. For DMA controllers, the request function requires the potential -direction of any transfers to be provided in the route attributes. This is -typically VME-to-MEM and/or MEM-to-VME, though some hardware can support -VME-to-VME and MEM-to-MEM transfers as well as test pattern generation. If an -unallocated window fitting the requirements can not be found a NULL pointer -will be returned. - -Functions are also provided to free window allocations once they are no longer -required. These functions should be passed the pointer to the resource provided -during resource allocation: - - void vme_master_free(struct vme_resource *res); - - void vme_slave_free(struct vme_resource *res); - - void vme_dma_free(struct vme_resource *res); - - -Master windows -============== - -Master windows provide access from the local processor[s] out onto the VME bus. -The number of windows available and the available access modes is dependant on -the underlying chipset. A window must be configured before it can be used. - - -Master window configuration ---------------------------- - -Once a master window has been assigned the following functions can be used to -configure it and retrieve the current settings: - - int vme_master_set (struct vme_resource *res, int enabled, - unsigned long long base, unsigned long long size, - vme_address_t aspace, vme_cycle_t cycle, vme_width_t width); - - int vme_master_get (struct vme_resource *res, int *enabled, - unsigned long long *base, unsigned long long *size, - vme_address_t *aspace, vme_cycle_t *cycle, vme_width_t *width); - -The address spaces, transfer widths and cycle types are the same as described -under resource management, however some of the options are mutually exclusive. -For example, only one address space may be specified. - -These functions return 0 on success or an error code should the call fail. - - -Master window access --------------------- - -The following functions can be used to read from and write to configured master -windows. These functions return the number of bytes copied: - - ssize_t vme_master_read(struct vme_resource *res, void *buf, - size_t count, loff_t offset); - - ssize_t vme_master_write(struct vme_resource *res, void *buf, - size_t count, loff_t offset); - -In addition to simple reads and writes, a function is provided to do a -read-modify-write transaction. This function returns the original value of the -VME bus location : - - unsigned int vme_master_rmw (struct vme_resource *res, - unsigned int mask, unsigned int compare, unsigned int swap, - loff_t offset); - -This functions by reading the offset, applying the mask. If the bits selected in -the mask match with the values of the corresponding bits in the compare field, -the value of swap is written the specified offset. - - -Slave windows -============= - -Slave windows provide devices on the VME bus access into mapped portions of the -local memory. The number of windows available and the access modes that can be -used is dependant on the underlying chipset. A window must be configured before -it can be used. - - -Slave window configuration --------------------------- - -Once a slave window has been assigned the following functions can be used to -configure it and retrieve the current settings: - - int vme_slave_set (struct vme_resource *res, int enabled, - unsigned long long base, unsigned long long size, - dma_addr_t mem, vme_address_t aspace, vme_cycle_t cycle); - - int vme_slave_get (struct vme_resource *res, int *enabled, - unsigned long long *base, unsigned long long *size, - dma_addr_t *mem, vme_address_t *aspace, vme_cycle_t *cycle); - -The address spaces, transfer widths and cycle types are the same as described -under resource management, however some of the options are mutually exclusive. -For example, only one address space may be specified. - -These functions return 0 on success or an error code should the call fail. - - -Slave window buffer allocation ------------------------------- - -Functions are provided to allow the user to allocate and free a contiguous -buffers which will be accessible by the VME bridge. These functions do not have -to be used, other methods can be used to allocate a buffer, though care must be -taken to ensure that they are contiguous and accessible by the VME bridge: - - void * vme_alloc_consistent(struct vme_resource *res, size_t size, - dma_addr_t *mem); - - void vme_free_consistent(struct vme_resource *res, size_t size, - void *virt, dma_addr_t mem); - - -Slave window access -------------------- - -Slave windows map local memory onto the VME bus, the standard methods for -accessing memory should be used. - - -DMA channels -============ - -The VME DMA transfer provides the ability to run link-list DMA transfers. The -API introduces the concept of DMA lists. Each DMA list is a link-list which can -be passed to a DMA controller. Multiple lists can be created, extended, -executed, reused and destroyed. - - -List Management ---------------- - -The following functions are provided to create and destroy DMA lists. Execution -of a list will not automatically destroy the list, thus enabling a list to be -reused for repetitive tasks: - - struct vme_dma_list *vme_new_dma_list(struct vme_resource *res); - - int vme_dma_list_free(struct vme_dma_list *list); - - -List Population ---------------- - -An item can be added to a list using the following function ( the source and -destination attributes need to be created before calling this function, this is -covered under "Transfer Attributes"): - - int vme_dma_list_add(struct vme_dma_list *list, - struct vme_dma_attr *src, struct vme_dma_attr *dest, - size_t count); - -NOTE: The detailed attributes of the transfers source and destination - are not checked until an entry is added to a DMA list, the request - for a DMA channel purely checks the directions in which the - controller is expected to transfer data. As a result it is - possible for this call to return an error, for example if the - source or destination is in an unsupported VME address space. - -Transfer Attributes -------------------- - -The attributes for the source and destination are handled separately from adding -an item to a list. This is due to the diverse attributes required for each type -of source and destination. There are functions to create attributes for PCI, VME -and pattern sources and destinations (where appropriate): - -Pattern source: - - struct vme_dma_attr *vme_dma_pattern_attribute(u32 pattern, - vme_pattern_t type); - -PCI source or destination: - - struct vme_dma_attr *vme_dma_pci_attribute(dma_addr_t mem); - -VME source or destination: - - struct vme_dma_attr *vme_dma_vme_attribute(unsigned long long base, - vme_address_t aspace, vme_cycle_t cycle, vme_width_t width); - -The following function should be used to free an attribute: - - void vme_dma_free_attribute(struct vme_dma_attr *attr); - - -List Execution --------------- - -The following function queues a list for execution. The function will return -once the list has been executed: - - int vme_dma_list_exec(struct vme_dma_list *list); - - -Interrupts -========== - -The VME API provides functions to attach and detach callbacks to specific VME -level and status ID combinations and for the generation of VME interrupts with -specific VME level and status IDs. - - -Attaching Interrupt Handlers ----------------------------- - -The following functions can be used to attach and free a specific VME level and -status ID combination. Any given combination can only be assigned a single -callback function. A void pointer parameter is provided, the value of which is -passed to the callback function, the use of this pointer is user undefined: - - int vme_irq_request(struct device *dev, int level, int statid, - void (*callback)(int, int, void *), void *priv); - - void vme_irq_free(struct device *dev, int level, int statid); - -The callback parameters are as follows. Care must be taken in writing a callback -function, callback functions run in interrupt context: - - void callback(int level, int statid, void *priv); - - -Interrupt Generation --------------------- - -The following function can be used to generate a VME interrupt at a given VME -level and VME status ID: - - int vme_irq_generate(struct device *dev, int level, int statid); - - -Location monitors -================= - -The VME API provides the following functionality to configure the location -monitor. - - -Location Monitor Management ---------------------------- - -The following functions are provided to request the use of a block of location -monitors and to free them after they are no longer required: - - struct vme_resource * vme_lm_request(struct device *dev); - - void vme_lm_free(struct vme_resource * res); - -Each block may provide a number of location monitors, monitoring adjacent -locations. The following function can be used to determine how many locations -are provided: - - int vme_lm_count(struct vme_resource * res); - - -Location Monitor Configuration ------------------------------- - -Once a bank of location monitors has been allocated, the following functions -are provided to configure the location and mode of the location monitor: - - int vme_lm_set(struct vme_resource *res, unsigned long long base, - vme_address_t aspace, vme_cycle_t cycle); - - int vme_lm_get(struct vme_resource *res, unsigned long long *base, - vme_address_t *aspace, vme_cycle_t *cycle); - - -Location Monitor Use --------------------- - -The following functions allow a callback to be attached and detached from each -location monitor location. Each location monitor can monitor a number of -adjacent locations: - - int vme_lm_attach(struct vme_resource *res, int num, - void (*callback)(int)); - - int vme_lm_detach(struct vme_resource *res, int num); - -The callback function is declared as follows. - - void callback(int num); - - -Slot Detection -============== - -This function returns the slot ID of the provided bridge. - - int vme_slot_get(struct device *dev); diff --git a/drivers/staging/vme/vme_bridge.h b/drivers/staging/vme/vme_bridge.h deleted file mode 100644 index b653ec02e1f..00000000000 --- a/drivers/staging/vme/vme_bridge.h +++ /dev/null @@ -1,175 +0,0 @@ -#ifndef _VME_BRIDGE_H_ -#define _VME_BRIDGE_H_ - -#define VME_CRCSR_BUF_SIZE (508*1024) -#define VME_SLOTS_MAX 32 -/* - * Resource structures - */ -struct vme_master_resource { - struct list_head list; - struct vme_bridge *parent; - /* - * We are likely to need to access the VME bus in interrupt context, so - * protect master routines with a spinlock rather than a mutex. - */ - spinlock_t lock; - int locked; - int number; - vme_address_t address_attr; - vme_cycle_t cycle_attr; - vme_width_t width_attr; - struct resource bus_resource; - void *kern_base; -}; - -struct vme_slave_resource { - struct list_head list; - struct vme_bridge *parent; - struct mutex mtx; - int locked; - int number; - vme_address_t address_attr; - vme_cycle_t cycle_attr; -}; - -struct vme_dma_pattern { - u32 pattern; - vme_pattern_t type; -}; - -struct vme_dma_pci { - dma_addr_t address; -}; - -struct vme_dma_vme { - unsigned long long address; - vme_address_t aspace; - vme_cycle_t cycle; - vme_width_t dwidth; -}; - -struct vme_dma_list { - struct list_head list; - struct vme_dma_resource *parent; - struct list_head entries; - struct mutex mtx; -}; - -struct vme_dma_resource { - struct list_head list; - struct vme_bridge *parent; - struct mutex mtx; - int locked; - int number; - struct list_head pending; - struct list_head running; - vme_dma_route_t route_attr; -}; - -struct vme_lm_resource { - struct list_head list; - struct vme_bridge *parent; - struct mutex mtx; - int locked; - int number; - int monitors; -}; - -struct vme_bus_error { - struct list_head list; - unsigned long long address; - u32 attributes; -}; - -struct vme_callback { - void (*func)(int, int, void*); - void *priv_data; -}; - -struct vme_irq { - int count; - struct vme_callback callback[255]; -}; - -/* Allow 16 characters for name (including null character) */ -#define VMENAMSIZ 16 - -/* This structure stores all the information about one bridge - * The structure should be dynamically allocated by the driver and one instance - * of the structure should be present for each VME chip present in the system. - * - * Currently we assume that all chips are PCI-based - */ -struct vme_bridge { - char name[VMENAMSIZ]; - int num; - struct list_head master_resources; - struct list_head slave_resources; - struct list_head dma_resources; - struct list_head lm_resources; - - struct list_head vme_errors; /* List for errors generated on VME */ - - /* Bridge Info - XXX Move to private structure? */ - struct device *parent; /* Generic device struct (pdev->dev for PCI) */ - void *driver_priv; /* Private pointer for the bridge driver */ - - struct device dev[VME_SLOTS_MAX]; /* Device registered with - * device model on VME bus - */ - - /* Interrupt callbacks */ - struct vme_irq irq[7]; - /* Locking for VME irq callback configuration */ - struct mutex irq_mtx; - - /* Slave Functions */ - int (*slave_get) (struct vme_slave_resource *, int *, - unsigned long long *, unsigned long long *, dma_addr_t *, - vme_address_t *, vme_cycle_t *); - int (*slave_set) (struct vme_slave_resource *, int, unsigned long long, - unsigned long long, dma_addr_t, vme_address_t, vme_cycle_t); - - /* Master Functions */ - int (*master_get) (struct vme_master_resource *, int *, - unsigned long long *, unsigned long long *, vme_address_t *, - vme_cycle_t *, vme_width_t *); - int (*master_set) (struct vme_master_resource *, int, - unsigned long long, unsigned long long, vme_address_t, - vme_cycle_t, vme_width_t); - ssize_t (*master_read) (struct vme_master_resource *, void *, size_t, - loff_t); - ssize_t (*master_write) (struct vme_master_resource *, void *, size_t, - loff_t); - unsigned int (*master_rmw) (struct vme_master_resource *, unsigned int, - unsigned int, unsigned int, loff_t); - - /* DMA Functions */ - int (*dma_list_add) (struct vme_dma_list *, struct vme_dma_attr *, - struct vme_dma_attr *, size_t); - int (*dma_list_exec) (struct vme_dma_list *); - int (*dma_list_empty) (struct vme_dma_list *); - - /* Interrupt Functions */ - void (*irq_set) (struct vme_bridge *, int, int, int); - int (*irq_generate) (struct vme_bridge *, int, int); - - /* Location monitor functions */ - int (*lm_set) (struct vme_lm_resource *, unsigned long long, - vme_address_t, vme_cycle_t); - int (*lm_get) (struct vme_lm_resource *, unsigned long long *, - vme_address_t *, vme_cycle_t *); - int (*lm_attach) (struct vme_lm_resource *, int, void (*callback)(int)); - int (*lm_detach) (struct vme_lm_resource *, int); - - /* CR/CSR space functions */ - int (*slot_get) (struct vme_bridge *); -}; - -void vme_irq_handler(struct vme_bridge *, int, int); - -int vme_register_bridge(struct vme_bridge *); -void vme_unregister_bridge(struct vme_bridge *); - -#endif /* _VME_BRIDGE_H_ */ |