diff options
Diffstat (limited to 'drivers/scsi/sata_sis.c')
| -rw-r--r-- | drivers/scsi/sata_sis.c | 287 |
1 files changed, 0 insertions, 287 deletions
diff --git a/drivers/scsi/sata_sis.c b/drivers/scsi/sata_sis.c deleted file mode 100644 index e418b89c6b9..00000000000 --- a/drivers/scsi/sata_sis.c +++ /dev/null @@ -1,287 +0,0 @@ -/* - * sata_sis.c - Silicon Integrated Systems SATA - * - * Maintained by: Uwe Koziolek - * Please ALWAYS copy linux-ide@vger.kernel.org - * on emails. - * - * Copyright 2004 Uwe Koziolek - * - * The contents of this file are subject to the Open - * Software License version 1.1 that can be found at - * http://www.opensource.org/licenses/osl-1.1.txt and is included herein - * by reference. - * - * Alternatively, the contents of this file may be used under the terms - * of the GNU General Public License version 2 (the "GPL") as distributed - * in the kernel source COPYING file, in which case the provisions of - * the GPL are applicable instead of the above. If you wish to allow - * the use of your version of this file only under the terms of the - * GPL and not to allow others to use your version of this file under - * the OSL, indicate your decision by deleting the provisions above and - * replace them with the notice and other provisions required by the GPL. - * If you do not delete the provisions above, a recipient may use your - * version of this file under either the OSL or the GPL. - * - */ - -#include <linux/config.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/pci.h> -#include <linux/init.h> -#include <linux/blkdev.h> -#include <linux/delay.h> -#include <linux/interrupt.h> -#include "scsi.h" -#include <scsi/scsi_host.h> -#include <linux/libata.h> - -#define DRV_NAME "sata_sis" -#define DRV_VERSION "0.5" - -enum { - sis_180 = 0, - SIS_SCR_PCI_BAR = 5, - - /* PCI configuration registers */ - SIS_GENCTL = 0x54, /* IDE General Control register */ - SIS_SCR_BASE = 0xc0, /* sata0 phy SCR registers */ - SIS_SATA1_OFS = 0x10, /* offset from sata0->sata1 phy regs */ - - /* random bits */ - SIS_FLAG_CFGSCR = (1 << 30), /* host flag: SCRs via PCI cfg */ - - GENCTL_IOMAPPED_SCR = (1 << 26), /* if set, SCRs are in IO space */ -}; - -static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent); -static u32 sis_scr_read (struct ata_port *ap, unsigned int sc_reg); -static void sis_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val); - -static struct pci_device_id sis_pci_tbl[] = { - { PCI_VENDOR_ID_SI, 0x180, PCI_ANY_ID, PCI_ANY_ID, 0, 0, sis_180 }, - { PCI_VENDOR_ID_SI, 0x181, PCI_ANY_ID, PCI_ANY_ID, 0, 0, sis_180 }, - { } /* terminate list */ -}; - - -static struct pci_driver sis_pci_driver = { - .name = DRV_NAME, - .id_table = sis_pci_tbl, - .probe = sis_init_one, - .remove = ata_pci_remove_one, -}; - -static Scsi_Host_Template sis_sht = { - .module = THIS_MODULE, - .name = DRV_NAME, - .ioctl = ata_scsi_ioctl, - .queuecommand = ata_scsi_queuecmd, - .eh_strategy_handler = ata_scsi_error, - .can_queue = ATA_DEF_QUEUE, - .this_id = ATA_SHT_THIS_ID, - .sg_tablesize = ATA_MAX_PRD, - .max_sectors = ATA_MAX_SECTORS, - .cmd_per_lun = ATA_SHT_CMD_PER_LUN, - .emulated = ATA_SHT_EMULATED, - .use_clustering = ATA_SHT_USE_CLUSTERING, - .proc_name = DRV_NAME, - .dma_boundary = ATA_DMA_BOUNDARY, - .slave_configure = ata_scsi_slave_config, - .bios_param = ata_std_bios_param, - .ordered_flush = 1, -}; - -static struct ata_port_operations sis_ops = { - .port_disable = ata_port_disable, - .tf_load = ata_tf_load, - .tf_read = ata_tf_read, - .check_status = ata_check_status, - .exec_command = ata_exec_command, - .dev_select = ata_std_dev_select, - .phy_reset = sata_phy_reset, - .bmdma_setup = ata_bmdma_setup, - .bmdma_start = ata_bmdma_start, - .bmdma_stop = ata_bmdma_stop, - .bmdma_status = ata_bmdma_status, - .qc_prep = ata_qc_prep, - .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, - .irq_handler = ata_interrupt, - .irq_clear = ata_bmdma_irq_clear, - .scr_read = sis_scr_read, - .scr_write = sis_scr_write, - .port_start = ata_port_start, - .port_stop = ata_port_stop, - .host_stop = ata_host_stop, -}; - -static struct ata_port_info sis_port_info = { - .sht = &sis_sht, - .host_flags = ATA_FLAG_SATA | ATA_FLAG_SATA_RESET | - ATA_FLAG_NO_LEGACY, - .pio_mask = 0x1f, - .mwdma_mask = 0x7, - .udma_mask = 0x7f, - .port_ops = &sis_ops, -}; - - -MODULE_AUTHOR("Uwe Koziolek"); -MODULE_DESCRIPTION("low-level driver for Silicon Integratad Systems SATA controller"); -MODULE_LICENSE("GPL"); -MODULE_DEVICE_TABLE(pci, sis_pci_tbl); -MODULE_VERSION(DRV_VERSION); - -static unsigned int get_scr_cfg_addr(unsigned int port_no, unsigned int sc_reg) -{ - unsigned int addr = SIS_SCR_BASE + (4 * sc_reg); - - if (port_no) - addr += SIS_SATA1_OFS; - return addr; -} - -static u32 sis_scr_cfg_read (struct ata_port *ap, unsigned int sc_reg) -{ - struct pci_dev *pdev = to_pci_dev(ap->host_set->dev); - unsigned int cfg_addr = get_scr_cfg_addr(ap->port_no, sc_reg); - u32 val; - - if (sc_reg == SCR_ERROR) /* doesn't exist in PCI cfg space */ - return 0xffffffff; - pci_read_config_dword(pdev, cfg_addr, &val); - return val; -} - -static void sis_scr_cfg_write (struct ata_port *ap, unsigned int scr, u32 val) -{ - struct pci_dev *pdev = to_pci_dev(ap->host_set->dev); - unsigned int cfg_addr = get_scr_cfg_addr(ap->port_no, scr); - - if (scr == SCR_ERROR) /* doesn't exist in PCI cfg space */ - return; - pci_write_config_dword(pdev, cfg_addr, val); -} - -static u32 sis_scr_read (struct ata_port *ap, unsigned int sc_reg) -{ - if (sc_reg > SCR_CONTROL) - return 0xffffffffU; - - if (ap->flags & SIS_FLAG_CFGSCR) - return sis_scr_cfg_read(ap, sc_reg); - return inl(ap->ioaddr.scr_addr + (sc_reg * 4)); -} - -static void sis_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val) -{ - if (sc_reg > SCR_CONTROL) - return; - - if (ap->flags & SIS_FLAG_CFGSCR) - sis_scr_cfg_write(ap, sc_reg, val); - else - outl(val, ap->ioaddr.scr_addr + (sc_reg * 4)); -} - -/* move to PCI layer, integrate w/ MSI stuff */ -static void pci_enable_intx(struct pci_dev *pdev) -{ - u16 pci_command; - - pci_read_config_word(pdev, PCI_COMMAND, &pci_command); - if (pci_command & PCI_COMMAND_INTX_DISABLE) { - pci_command &= ~PCI_COMMAND_INTX_DISABLE; - pci_write_config_word(pdev, PCI_COMMAND, pci_command); - } -} - -static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) -{ - struct ata_probe_ent *probe_ent = NULL; - int rc; - u32 genctl; - struct ata_port_info *ppi; - int pci_dev_busy = 0; - - rc = pci_enable_device(pdev); - if (rc) - return rc; - - rc = pci_request_regions(pdev, DRV_NAME); - if (rc) { - pci_dev_busy = 1; - goto err_out; - } - - rc = pci_set_dma_mask(pdev, ATA_DMA_MASK); - if (rc) - goto err_out_regions; - rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK); - if (rc) - goto err_out_regions; - - ppi = &sis_port_info; - probe_ent = ata_pci_init_native_mode(pdev, &ppi); - if (!probe_ent) { - rc = -ENOMEM; - goto err_out_regions; - } - - /* check and see if the SCRs are in IO space or PCI cfg space */ - pci_read_config_dword(pdev, SIS_GENCTL, &genctl); - if ((genctl & GENCTL_IOMAPPED_SCR) == 0) - probe_ent->host_flags |= SIS_FLAG_CFGSCR; - - /* if hardware thinks SCRs are in IO space, but there are - * no IO resources assigned, change to PCI cfg space. - */ - if ((!(probe_ent->host_flags & SIS_FLAG_CFGSCR)) && - ((pci_resource_start(pdev, SIS_SCR_PCI_BAR) == 0) || - (pci_resource_len(pdev, SIS_SCR_PCI_BAR) < 128))) { - genctl &= ~GENCTL_IOMAPPED_SCR; - pci_write_config_dword(pdev, SIS_GENCTL, genctl); - probe_ent->host_flags |= SIS_FLAG_CFGSCR; - } - - if (!(probe_ent->host_flags & SIS_FLAG_CFGSCR)) { - probe_ent->port[0].scr_addr = - pci_resource_start(pdev, SIS_SCR_PCI_BAR); - probe_ent->port[1].scr_addr = - pci_resource_start(pdev, SIS_SCR_PCI_BAR) + 64; - } - - pci_set_master(pdev); - pci_enable_intx(pdev); - - /* FIXME: check ata_device_add return value */ - ata_device_add(probe_ent); - kfree(probe_ent); - - return 0; - -err_out_regions: - pci_release_regions(pdev); - -err_out: - if (!pci_dev_busy) - pci_disable_device(pdev); - return rc; - -} - -static int __init sis_init(void) -{ - return pci_module_init(&sis_pci_driver); -} - -static void __exit sis_exit(void) -{ - pci_unregister_driver(&sis_pci_driver); -} - -module_init(sis_init); -module_exit(sis_exit); - |