/* 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 * * 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 #include #include #include #include #include #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; struct net_device *dev; 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 */ dev = alloc_orinocodev(sizeof(*card), orinoco_nortel_cor_reset); if (!dev) { printk(KERN_ERR PFX "Cannot allocate network device\n"); err = -ENOMEM; goto fail_alloc; } priv = netdev_priv(dev); card = priv->card; card->bridge_io = bridge_io; card->attr_io = attr_io; SET_NETDEV_DEV(dev, &pdev->dev); hermes_struct_init(&priv->hw, hermes_io, HERMES_16BIT_REGSPACING); err = request_irq(pdev->irq, orinoco_interrupt, IRQF_SHARED, dev->name, dev); 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 = register_netdev(dev); if (err) { printk(KERN_ERR PFX "Cannot register network device\n"); goto fail; } pci_set_drvdata(pdev, dev); printk(KERN_DEBUG "%s: " DRIVER_NAME " at %s\n", dev->name, pci_name(pdev)); return 0; fail: free_irq(pdev->irq, dev); fail_irq: pci_set_drvdata(pdev, NULL); free_orinocodev(dev); 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 __devexit orinoco_nortel_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; /* Clear LEDs */ iowrite16(0, card->bridge_io + 10); unregister_netdev(dev); free_irq(pdev->irq, dev); pci_set_drvdata(pdev, NULL); free_orinocodev(dev); 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 struct pci_device_id 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 = __devexit_p(orinoco_nortel_remove_one), .suspend = orinoco_pci_suspend, .resume = orinoco_pci_resume, }; static char version[] __initdata = DRIVER_NAME " " DRIVER_VERSION " (Tobias Hoffmann & Christoph Jungegger )"; MODULE_AUTHOR("Christoph Jungegger "); 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: */