| /* orinoco_nortel.c |
| * |
| * Driver for Prism II devices which would usually be driven by orinoco_cs, |
| * but are connected to the PCI bus by a PCI-to-PCMCIA adapter used in |
| * Nortel emobility, Symbol LA-4113 and Symbol LA-4123. |
| * |
| * Copyright (C) 2002 Tobias Hoffmann |
| * (C) 2003 Christoph Jungegger <disdos@traum404.de> |
| * |
| * Some of this code is borrowed from orinoco_plx.c |
| * Copyright (C) 2001 Daniel Barlow |
| * Some of this code is borrowed from orinoco_pci.c |
| * Copyright (C) 2001 Jean Tourrilhes |
| * 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. |
| * |
| * 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. |
| */ |
| |
| #define DRIVER_NAME "orinoco_nortel" |
| #define PFX DRIVER_NAME ": " |
| |
| #include <linux/module.h> |
| #include <linux/kernel.h> |
| #include <linux/init.h> |
| #include <linux/delay.h> |
| #include <linux/pci.h> |
| #include <pcmcia/cisreg.h> |
| |
| #include "orinoco.h" |
| #include "orinoco_pci.h" |
| |
| #define COR_OFFSET (0xe0) /* COR attribute offset of Prism2 PC card */ |
| #define COR_VALUE (COR_LEVEL_REQ | COR_FUNC_ENA) /* Enable PC card with interrupt in level trigger */ |
| |
| |
| /* |
| * Do a soft reset of the 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 bis : Don't try to access HERMES_CMD during the reset phase. |
| * It just won't work ! |
| */ |
| static int orinoco_nortel_cor_reset(struct orinoco_private *priv) |
| { |
| struct orinoco_pci_card *card = priv->card; |
| |
| /* Assert the reset until the card notices */ |
| iowrite16(8, card->bridge_io + 2); |
| ioread16(card->attr_io + COR_OFFSET); |
| iowrite16(0x80, card->attr_io + COR_OFFSET); |
| mdelay(1); |
| |
| /* Give time for the card to recover from this hard effort */ |
| iowrite16(0, card->attr_io + COR_OFFSET); |
| iowrite16(0, card->attr_io + COR_OFFSET); |
| mdelay(1); |
| |
| /* Set COR as usual */ |
| iowrite16(COR_VALUE, card->attr_io + COR_OFFSET); |
| iowrite16(COR_VALUE, card->attr_io + COR_OFFSET); |
| mdelay(1); |
| |
| iowrite16(0x228, card->bridge_io + 2); |
| |
| return 0; |
| } |
| |
| static int orinoco_nortel_hw_init(struct orinoco_pci_card *card) |
| { |
| int i; |
| u32 reg; |
| |
| /* Setup bridge */ |
| if (ioread16(card->bridge_io) & 1) { |
| printk(KERN_ERR PFX "brg1 answer1 wrong\n"); |
| return -EBUSY; |
| } |
| iowrite16(0x118, card->bridge_io + 2); |
| iowrite16(0x108, card->bridge_io + 2); |
| mdelay(30); |
| iowrite16(0x8, card->bridge_io + 2); |
| for (i = 0; i < 30; i++) { |
| mdelay(30); |
| if (ioread16(card->bridge_io) & 0x10) |
| break; |
| } |
| if (i == 30) { |
| printk(KERN_ERR PFX "brg1 timed out\n"); |
| return -EBUSY; |
| } |
| if (ioread16(card->attr_io + COR_OFFSET) & 1) { |
| printk(KERN_ERR PFX "brg2 answer1 wrong\n"); |
| return -EBUSY; |
| } |
| if (ioread16(card->attr_io + COR_OFFSET + 2) & 1) { |
| printk(KERN_ERR PFX "brg2 answer2 wrong\n"); |
| return -EBUSY; |
| } |
| if (ioread16(card->attr_io + COR_OFFSET + 4) & 1) { |
| printk(KERN_ERR PFX "brg2 answer3 wrong\n"); |
| return -EBUSY; |
| } |
| |
| /* Set the PCMCIA COR register */ |
| iowrite16(COR_VALUE, card->attr_io + COR_OFFSET); |
| mdelay(1); |
| reg = ioread16(card->attr_io + COR_OFFSET); |
| if (reg != COR_VALUE) { |
| printk(KERN_ERR PFX "Error setting COR value (reg=%x)\n", |
| reg); |
| return -EBUSY; |
| } |
| |
| /* Set LEDs */ |
| iowrite16(1, card->bridge_io + 10); |
| return 0; |
| } |
| |
| static int orinoco_nortel_init_one(struct pci_dev *pdev, |
| const struct pci_device_id *ent) |
| { |
| int err; |
| struct orinoco_private *priv; |
| struct orinoco_pci_card *card; |
| void __iomem *hermes_io, *bridge_io, *attr_io; |
| |
| 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) { |
| printk(KERN_ERR PFX "Cannot obtain PCI resources\n"); |
| goto fail_resources; |
| } |
| |
| bridge_io = pci_iomap(pdev, 0, 0); |
| if (!bridge_io) { |
| printk(KERN_ERR PFX "Cannot map bridge registers\n"); |
| err = -EIO; |
| goto fail_map_bridge; |
| } |
| |
| attr_io = pci_iomap(pdev, 1, 0); |
| if (!attr_io) { |
| printk(KERN_ERR PFX "Cannot map PCMCIA attributes\n"); |
| err = -EIO; |
| goto fail_map_attr; |
| } |
| |
| hermes_io = pci_iomap(pdev, 2, 0); |
| if (!hermes_io) { |
| printk(KERN_ERR PFX "Cannot map chipset registers\n"); |
| err = -EIO; |
| goto fail_map_hermes; |
| } |
| |
| /* Allocate network device */ |
| priv = alloc_orinocodev(sizeof(*card), &pdev->dev, |
| orinoco_nortel_cor_reset, NULL); |
| if (!priv) { |
| printk(KERN_ERR PFX "Cannot allocate network device\n"); |
| err = -ENOMEM; |
| goto fail_alloc; |
| } |
| |
| card = priv->card; |
| card->bridge_io = bridge_io; |
| card->attr_io = attr_io; |
| |
| hermes_struct_init(&priv->hw, hermes_io, HERMES_16BIT_REGSPACING); |
| |
| err = request_irq(pdev->irq, orinoco_interrupt, IRQF_SHARED, |
| DRIVER_NAME, priv); |
| if (err) { |
| printk(KERN_ERR PFX "Cannot allocate IRQ %d\n", pdev->irq); |
| err = -EBUSY; |
| goto fail_irq; |
| } |
| |
| err = orinoco_nortel_hw_init(card); |
| if (err) { |
| printk(KERN_ERR PFX "Hardware initialization failed\n"); |
| goto fail; |
| } |
| |
| err = orinoco_nortel_cor_reset(priv); |
| if (err) { |
| printk(KERN_ERR PFX "Initial reset failed\n"); |
| goto fail; |
| } |
| |
| err = orinoco_init(priv); |
| if (err) { |
| printk(KERN_ERR PFX "orinoco_init() failed\n"); |
| goto fail; |
| } |
| |
| err = orinoco_if_add(priv, 0, 0, NULL); |
| if (err) { |
| printk(KERN_ERR PFX "orinoco_if_add() failed\n"); |
| goto fail; |
| } |
| |
| pci_set_drvdata(pdev, priv); |
| |
| return 0; |
| |
| fail: |
| free_irq(pdev->irq, priv); |
| |
| fail_irq: |
| pci_set_drvdata(pdev, NULL); |
| free_orinocodev(priv); |
| |
| fail_alloc: |
| pci_iounmap(pdev, hermes_io); |
| |
| fail_map_hermes: |
| pci_iounmap(pdev, attr_io); |
| |
| fail_map_attr: |
| pci_iounmap(pdev, bridge_io); |
| |
| fail_map_bridge: |
| pci_release_regions(pdev); |
| |
| fail_resources: |
| pci_disable_device(pdev); |
| |
| return err; |
| } |
| |
| static void orinoco_nortel_remove_one(struct pci_dev *pdev) |
| { |
| struct orinoco_private *priv = pci_get_drvdata(pdev); |
| struct orinoco_pci_card *card = priv->card; |
| |
| /* Clear LEDs */ |
| iowrite16(0, card->bridge_io + 10); |
| |
| orinoco_if_del(priv); |
| free_irq(pdev->irq, priv); |
| pci_set_drvdata(pdev, NULL); |
| free_orinocodev(priv); |
| pci_iounmap(pdev, priv->hw.iobase); |
| pci_iounmap(pdev, card->attr_io); |
| pci_iounmap(pdev, card->bridge_io); |
| pci_release_regions(pdev); |
| pci_disable_device(pdev); |
| } |
| |
| static DEFINE_PCI_DEVICE_TABLE(orinoco_nortel_id_table) = { |
| /* Nortel emobility PCI */ |
| {0x126c, 0x8030, PCI_ANY_ID, PCI_ANY_ID,}, |
| /* Symbol LA-4123 PCI */ |
| {0x1562, 0x0001, PCI_ANY_ID, PCI_ANY_ID,}, |
| {0,}, |
| }; |
| |
| MODULE_DEVICE_TABLE(pci, orinoco_nortel_id_table); |
| |
| static struct pci_driver orinoco_nortel_driver = { |
| .name = DRIVER_NAME, |
| .id_table = orinoco_nortel_id_table, |
| .probe = orinoco_nortel_init_one, |
| .remove = orinoco_nortel_remove_one, |
| .suspend = orinoco_pci_suspend, |
| .resume = orinoco_pci_resume, |
| }; |
| |
| static char version[] __initdata = DRIVER_NAME " " DRIVER_VERSION |
| " (Tobias Hoffmann & Christoph Jungegger <disdos@traum404.de>)"; |
| MODULE_AUTHOR("Christoph Jungegger <disdos@traum404.de>"); |
| MODULE_DESCRIPTION("Driver for wireless LAN cards using the Nortel PCI bridge"); |
| MODULE_LICENSE("Dual MPL/GPL"); |
| |
| static int __init orinoco_nortel_init(void) |
| { |
| printk(KERN_DEBUG "%s\n", version); |
| return pci_register_driver(&orinoco_nortel_driver); |
| } |
| |
| static void __exit orinoco_nortel_exit(void) |
| { |
| pci_unregister_driver(&orinoco_nortel_driver); |
| } |
| |
| module_init(orinoco_nortel_init); |
| module_exit(orinoco_nortel_exit); |
| |
| /* |
| * Local variables: |
| * c-indent-level: 8 |
| * c-basic-offset: 8 |
| * tab-width: 8 |
| * End: |
| */ |