diff options
Diffstat (limited to 'drivers/net/wireless/orinoco_pci.c')
| -rw-r--r-- | drivers/net/wireless/orinoco_pci.c | 399 |
1 files changed, 0 insertions, 399 deletions
diff --git a/drivers/net/wireless/orinoco_pci.c b/drivers/net/wireless/orinoco_pci.c deleted file mode 100644 index 5362c214fc8..00000000000 --- a/drivers/net/wireless/orinoco_pci.c +++ /dev/null @@ -1,399 +0,0 @@ -/* orinoco_pci.c - * - * Driver for Prism II devices that have a direct PCI interface - * (i.e., not in a Pcmcia or PLX bridge) - * - * Specifically here we're talking about the Linksys WMP11 - * - * Current maintainers (as of 29 September 2003) are: - * Pavel Roskin <proski AT gnu.org> - * and David Gibson <hermes AT gibson.dropbear.id.au> - * - * Some of this code is borrowed from orinoco_plx.c - * Copyright (C) 2001 Daniel Barlow <dan AT telent.net> - * Some of this code is "inspired" by linux-wlan-ng-0.1.10, but nothing - * has been copied from it. linux-wlan-ng-0.1.10 is originally : - * Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved. - * This file originally written by: - * Copyright (C) 2001 Jean Tourrilhes <jt AT hpl.hp.com> - * And is now maintained by: - * (C) Copyright David Gibson, IBM Corp. 2002-2003. - * - * The contents of this file are subject to the Mozilla Public License - * Version 1.1 (the "License"); you may not use this file except in - * compliance with the License. You may obtain a copy of the License - * at http://www.mozilla.org/MPL/ - * - * Software distributed under the License is distributed on an "AS IS" - * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See - * the License for the specific language governing rights and - * limitations under the License. - * - * Alternatively, the contents of this file may be used under the - * terms of the GNU General Public License version 2 (the "GPL"), 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 MPL, 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 MPL or the GPL. - */ - -/* - * Theory of operation... - * ------------------- - * Maybe you had a look in orinoco_plx. Well, this is totally different... - * - * The card contains only one PCI region, which contains all the usual - * hermes registers. - * - * The driver will memory map this region in normal memory. Because - * the hermes registers are mapped in normal memory and not in ISA I/O - * post space, we can't use the usual inw/outw macros and we need to - * use readw/writew. - * This slight difference force us to compile our own version of - * hermes.c with the register access macro changed. That's a bit - * hackish but works fine. - * - * Note that the PCI region is pretty big (4K). That's much more than - * the usual set of hermes register (0x0 -> 0x3E). I've got a strong - * suspicion that the whole memory space of the adapter is in fact in - * this region. Accessing directly the adapter memory instead of going - * through the usual register would speed up significantely the - * operations... - * - * Finally, the card looks like this : ------------------------ - Bus 0, device 14, function 0: - Network controller: PCI device 1260:3873 (Harris Semiconductor) (rev 1). - IRQ 11. - Master Capable. Latency=248. - Prefetchable 32 bit memory at 0xffbcc000 [0xffbccfff]. ------------------------ -00:0e.0 Network controller: Harris Semiconductor: Unknown device 3873 (rev 01) - Subsystem: Unknown device 1737:3874 - Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- - Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- - Latency: 248 set, cache line size 08 - Interrupt: pin A routed to IRQ 11 - Region 0: Memory at ffbcc000 (32-bit, prefetchable) [size=4K] - Capabilities: [dc] Power Management version 2 - Flags: PMEClk- AuxPwr- DSI- D1+ D2+ PME+ - Status: D0 PME-Enable- DSel=0 DScale=0 PME- ------------------------ - * - * That's all.. - * - * Jean II - */ - -#define DRIVER_NAME "orinoco_pci" -#define PFX DRIVER_NAME ": " - -#include <linux/config.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/pci.h> - -#include "orinoco.h" - -/* All the magic there is from wlan-ng */ -/* Magic offset of the reset register of the PCI card */ -#define HERMES_PCI_COR (0x26) -/* Magic bitmask to reset the card */ -#define HERMES_PCI_COR_MASK (0x0080) -/* Magic timeouts for doing the reset. - * Those times are straight from wlan-ng, and it is claimed that they - * are necessary. Alan will kill me. Take your time and grab a coffee. */ -#define HERMES_PCI_COR_ONT (250) /* ms */ -#define HERMES_PCI_COR_OFFT (500) /* ms */ -#define HERMES_PCI_COR_BUSYT (500) /* ms */ - -/* Orinoco PCI specific data */ -struct orinoco_pci_card { - void __iomem *pci_ioaddr; -}; - -/* - * Do a soft reset of the PCI card using the Configuration Option Register - * We need this to get going... - * This is the part of the code that is strongly inspired from wlan-ng - * - * Note : This code is done with irq enabled. This mean that many - * interrupts will occur while we are there. This is why we use the - * jiffies to regulate time instead of a straight mdelay(). Usually we - * need only around 245 iteration of the loop to do 250 ms delay. - * - * Note bis : Don't try to access HERMES_CMD during the reset phase. - * It just won't work ! - */ -static int -orinoco_pci_cor_reset(struct orinoco_private *priv) -{ - hermes_t *hw = &priv->hw; - unsigned long timeout; - u16 reg; - - /* Assert the reset until the card notice */ - hermes_write_regn(hw, PCI_COR, HERMES_PCI_COR_MASK); - mdelay(HERMES_PCI_COR_ONT); - - /* Give time for the card to recover from this hard effort */ - hermes_write_regn(hw, PCI_COR, 0x0000); - mdelay(HERMES_PCI_COR_OFFT); - - /* The card is ready when it's no longer busy */ - timeout = jiffies + (HERMES_PCI_COR_BUSYT * HZ / 1000); - reg = hermes_read_regn(hw, CMD); - while (time_before(jiffies, timeout) && (reg & HERMES_CMD_BUSY)) { - mdelay(1); - reg = hermes_read_regn(hw, CMD); - } - - /* Still busy? */ - if (reg & HERMES_CMD_BUSY) { - printk(KERN_ERR PFX "Busy timeout\n"); - return -ETIMEDOUT; - } - - return 0; -} - -/* - * Initialise a card. Mostly similar to PLX code. - */ -static int orinoco_pci_init_one(struct pci_dev *pdev, - const struct pci_device_id *ent) -{ - int err = 0; - unsigned long pci_iorange; - u16 __iomem *pci_ioaddr = NULL; - unsigned long pci_iolen; - struct orinoco_private *priv = NULL; - struct orinoco_pci_card *card; - struct net_device *dev = NULL; - - err = pci_enable_device(pdev); - if (err) { - printk(KERN_ERR PFX "Cannot enable PCI device\n"); - return err; - } - - err = pci_request_regions(pdev, DRIVER_NAME); - if (err != 0) { - printk(KERN_ERR PFX "Cannot obtain PCI resources\n"); - goto fail_resources; - } - - /* Resource 0 is mapped to the hermes registers */ - pci_iorange = pci_resource_start(pdev, 0); - pci_iolen = pci_resource_len(pdev, 0); - pci_ioaddr = ioremap(pci_iorange, pci_iolen); - if (!pci_iorange) { - printk(KERN_ERR PFX "Cannot remap hardware registers\n"); - goto fail_map; - } - - /* Allocate network device */ - dev = alloc_orinocodev(sizeof(*card), orinoco_pci_cor_reset); - if (! dev) { - err = -ENOMEM; - goto fail_alloc; - } - - priv = netdev_priv(dev); - card = priv->card; - card->pci_ioaddr = pci_ioaddr; - dev->mem_start = pci_iorange; - dev->mem_end = pci_iorange + pci_iolen - 1; - SET_MODULE_OWNER(dev); - SET_NETDEV_DEV(dev, &pdev->dev); - - hermes_struct_init(&priv->hw, pci_ioaddr, HERMES_32BIT_REGSPACING); - - printk(KERN_DEBUG PFX "Detected device %s, mem:0x%lx-0x%lx, irq %d\n", - pci_name(pdev), dev->mem_start, dev->mem_end, pdev->irq); - - err = request_irq(pdev->irq, orinoco_interrupt, SA_SHIRQ, - dev->name, dev); - if (err) { - printk(KERN_ERR PFX "Cannot allocate IRQ %d\n", pdev->irq); - err = -EBUSY; - goto fail_irq; - } - dev->irq = pdev->irq; - - /* Perform a COR reset to start the card */ - err = orinoco_pci_cor_reset(priv); - if (err) { - printk(KERN_ERR PFX "Initial reset failed\n"); - goto fail; - } - - err = register_netdev(dev); - if (err) { - printk(KERN_ERR PFX "Failed to register net device\n"); - goto fail; - } - - pci_set_drvdata(pdev, dev); - - return 0; - - fail: - free_irq(pdev->irq, dev); - - fail_irq: - pci_set_drvdata(pdev, NULL); - free_orinocodev(dev); - - fail_alloc: - iounmap(pci_ioaddr); - - fail_map: - pci_release_regions(pdev); - - fail_resources: - pci_disable_device(pdev); - - return err; -} - -static void __devexit orinoco_pci_remove_one(struct pci_dev *pdev) -{ - struct net_device *dev = pci_get_drvdata(pdev); - struct orinoco_private *priv = netdev_priv(dev); - struct orinoco_pci_card *card = priv->card; - - unregister_netdev(dev); - free_irq(dev->irq, dev); - pci_set_drvdata(pdev, NULL); - free_orinocodev(dev); - iounmap(card->pci_ioaddr); - pci_release_regions(pdev); - pci_disable_device(pdev); -} - -static int orinoco_pci_suspend(struct pci_dev *pdev, pm_message_t state) -{ - struct net_device *dev = pci_get_drvdata(pdev); - struct orinoco_private *priv = netdev_priv(dev); - unsigned long flags; - int err; - - - err = orinoco_lock(priv, &flags); - if (err) { - printk(KERN_ERR "%s: hw_unavailable on orinoco_pci_suspend\n", - dev->name); - return err; - } - - err = __orinoco_down(dev); - if (err) - printk(KERN_WARNING "%s: orinoco_pci_suspend(): Error %d downing interface\n", - dev->name, err); - - netif_device_detach(dev); - - priv->hw_unavailable++; - - orinoco_unlock(priv, &flags); - - pci_save_state(pdev); - pci_set_power_state(pdev, PCI_D3hot); - - return 0; -} - -static int orinoco_pci_resume(struct pci_dev *pdev) -{ - struct net_device *dev = pci_get_drvdata(pdev); - struct orinoco_private *priv = netdev_priv(dev); - unsigned long flags; - int err; - - printk(KERN_DEBUG "%s: Orinoco-PCI waking up\n", dev->name); - - pci_set_power_state(pdev, 0); - pci_restore_state(pdev); - - err = orinoco_reinit_firmware(dev); - if (err) { - printk(KERN_ERR "%s: Error %d re-initializing firmware on orinoco_pci_resume()\n", - dev->name, err); - return err; - } - - spin_lock_irqsave(&priv->lock, flags); - - netif_device_attach(dev); - - priv->hw_unavailable--; - - if (priv->open && (! priv->hw_unavailable)) { - err = __orinoco_up(dev); - if (err) - printk(KERN_ERR "%s: Error %d restarting card on orinoco_pci_resume()\n", - dev->name, err); - } - - spin_unlock_irqrestore(&priv->lock, flags); - - return 0; -} - -static struct pci_device_id orinoco_pci_pci_id_table[] = { - /* Intersil Prism 3 */ - {0x1260, 0x3872, PCI_ANY_ID, PCI_ANY_ID,}, - /* Intersil Prism 2.5 */ - {0x1260, 0x3873, PCI_ANY_ID, PCI_ANY_ID,}, - /* Samsung MagicLAN SWL-2210P */ - {0x167d, 0xa000, PCI_ANY_ID, PCI_ANY_ID,}, - {0,}, -}; - -MODULE_DEVICE_TABLE(pci, orinoco_pci_pci_id_table); - -static struct pci_driver orinoco_pci_driver = { - .name = DRIVER_NAME, - .id_table = orinoco_pci_pci_id_table, - .probe = orinoco_pci_init_one, - .remove = __devexit_p(orinoco_pci_remove_one), - .suspend = orinoco_pci_suspend, - .resume = orinoco_pci_resume, -}; - -static char version[] __initdata = DRIVER_NAME " " DRIVER_VERSION - " (Pavel Roskin <proski@gnu.org>," - " David Gibson <hermes@gibson.dropbear.id.au> &" - " Jean Tourrilhes <jt@hpl.hp.com>)"; -MODULE_AUTHOR("Pavel Roskin <proski@gnu.org> & David Gibson <hermes@gibson.dropbear.id.au>"); -MODULE_DESCRIPTION("Driver for wireless LAN cards using direct PCI interface"); -MODULE_LICENSE("Dual MPL/GPL"); - -static int __init orinoco_pci_init(void) -{ - printk(KERN_DEBUG "%s\n", version); - return pci_module_init(&orinoco_pci_driver); -} - -static void __exit orinoco_pci_exit(void) -{ - pci_unregister_driver(&orinoco_pci_driver); -} - -module_init(orinoco_pci_init); -module_exit(orinoco_pci_exit); - -/* - * Local variables: - * c-indent-level: 8 - * c-basic-offset: 8 - * tab-width: 8 - * End: - */ |