--- /dev/null
+/* 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 Nortel PCI-PCMCIA-Adapter.
+ *
+ * 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/config.h>
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/ptrace.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/timer.h>
+#include <linux/ioport.h>
+#include <asm/uaccess.h>
+#include <asm/io.h>
+#include <asm/system.h>
+#include <linux/netdevice.h>
+#include <linux/if_arp.h>
+#include <linux/etherdevice.h>
+#include <linux/list.h>
+#include <linux/pci.h>
+#include <linux/fcntl.h>
+
+#include <pcmcia/cisreg.h>
+
+#include "hermes.h"
+#include "orinoco.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 */
+
+
+/* Nortel specific data */
+struct nortel_pci_card {
+ unsigned long iobase1;
+ unsigned long iobase2;
+};
+
+/*
+ * 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 bis : Don't try to access HERMES_CMD during the reset phase.
+ * It just won't work !
+ */
+static int nortel_pci_cor_reset(struct orinoco_private *priv)
+{
+ struct nortel_pci_card *card = priv->card;
+
+ /* Assert the reset until the card notice */
+ outw_p(8, card->iobase1 + 2);
+ inw(card->iobase2 + COR_OFFSET);
+ outw_p(0x80, card->iobase2 + COR_OFFSET);
+ mdelay(1);
+
+ /* Give time for the card to recover from this hard effort */
+ outw_p(0, card->iobase2 + COR_OFFSET);
+ outw_p(0, card->iobase2 + COR_OFFSET);
+ mdelay(1);
+
+ /* set COR as usual */
+ outw_p(COR_VALUE, card->iobase2 + COR_OFFSET);
+ outw_p(COR_VALUE, card->iobase2 + COR_OFFSET);
+ mdelay(1);
+
+ outw_p(0x228, card->iobase1 + 2);
+
+ return 0;
+}
+
+int nortel_pci_hw_init(struct nortel_pci_card *card)
+{
+ int i;
+ u32 reg;
+
+ /* setup bridge */
+ if (inw(card->iobase1) & 1) {
+ printk(KERN_ERR PFX "brg1 answer1 wrong\n");
+ return -EBUSY;
+ }
+ outw_p(0x118, card->iobase1 + 2);
+ outw_p(0x108, card->iobase1 + 2);
+ mdelay(30);
+ outw_p(0x8, card->iobase1 + 2);
+ for (i = 0; i < 30; i++) {
+ mdelay(30);
+ if (inw(card->iobase1) & 0x10) {
+ break;
+ }
+ }
+ if (i == 30) {
+ printk(KERN_ERR PFX "brg1 timed out\n");
+ return -EBUSY;
+ }
+ if (inw(card->iobase2 + 0xe0) & 1) {
+ printk(KERN_ERR PFX "brg2 answer1 wrong\n");
+ return -EBUSY;
+ }
+ if (inw(card->iobase2 + 0xe2) & 1) {
+ printk(KERN_ERR PFX "brg2 answer2 wrong\n");
+ return -EBUSY;
+ }
+ if (inw(card->iobase2 + 0xe4) & 1) {
+ printk(KERN_ERR PFX "brg2 answer3 wrong\n");
+ return -EBUSY;
+ }
+
+ /* set the PCMCIA COR-Register */
+ outw_p(COR_VALUE, card->iobase2 + COR_OFFSET);
+ mdelay(1);
+ reg = inw(card->iobase2 + COR_OFFSET);
+ if (reg != COR_VALUE) {
+ printk(KERN_ERR PFX "Error setting COR value (reg=%x)\n",
+ reg);
+ return -EBUSY;
+ }
+
+ /* set leds */
+ outw_p(1, card->iobase1 + 10);
+ return 0;
+}
+
+static int nortel_pci_init_one(struct pci_dev *pdev,
+ const struct pci_device_id *ent)
+{
+ int err;
+ struct orinoco_private *priv;
+ struct nortel_pci_card *card;
+ struct net_device *dev;
+ void __iomem *iomem;
+
+ 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;
+ }
+
+ iomem = pci_iomap(pdev, 3, 0);
+ if (!iomem) {
+ err = -ENOMEM;
+ goto fail_map_io;
+ }
+
+ /* Allocate network device */
+ dev = alloc_orinocodev(sizeof(*card), nortel_pci_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->iobase1 = pci_resource_start(pdev, 0);
+ card->iobase2 = pci_resource_start(pdev, 1);
+ dev->base_addr = pci_resource_start(pdev, 2);
+ SET_MODULE_OWNER(dev);
+ SET_NETDEV_DEV(dev, &pdev->dev);
+
+ hermes_struct_init(&priv->hw, iomem, HERMES_16BIT_REGSPACING);
+
+ printk(KERN_DEBUG PFX "Detected Nortel PCI device at %s irq:%d, "
+ "io addr:0x%lx\n", pci_name(pdev), pdev->irq, dev->base_addr);
+
+ 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;
+
+ err = nortel_pci_hw_init(card);
+ if (err) {
+ printk(KERN_ERR PFX "Hardware initialization failed\n");
+ goto fail;
+ }
+
+ err = nortel_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 "Cannot register network 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:
+ pci_iounmap(pdev, iomem);
+
+ fail_map_io:
+ pci_release_regions(pdev);
+
+ fail_resources:
+ pci_disable_device(pdev);
+
+ return err;
+}
+
+static void __devexit nortel_pci_remove_one(struct pci_dev *pdev)
+{
+ struct net_device *dev = pci_get_drvdata(pdev);
+ struct orinoco_private *priv = netdev_priv(dev);
+ struct nortel_pci_card *card = priv->card;
+
+ /* clear leds */
+ outw_p(0, card->iobase1 + 10);
+
+ unregister_netdev(dev);
+ free_irq(dev->irq, dev);
+ pci_set_drvdata(pdev, NULL);
+ free_orinocodev(dev);
+ pci_iounmap(pdev, priv->hw.iobase);
+ pci_release_regions(pdev);
+ pci_disable_device(pdev);
+}
+
+
+static struct pci_device_id nortel_pci_id_table[] = {
+ /* Nortel emobility PCI */
+ {0x126c, 0x8030, PCI_ANY_ID, PCI_ANY_ID,},
+ {0,},
+};
+
+MODULE_DEVICE_TABLE(pci, nortel_pci_id_table);
+
+static struct pci_driver nortel_pci_driver = {
+ .name = DRIVER_NAME,
+ .id_table = nortel_pci_id_table,
+ .probe = nortel_pci_init_one,
+ .remove = __devexit_p(nortel_pci_remove_one),
+};
+
+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 nortel_pci_init(void)
+{
+ printk(KERN_DEBUG "%s\n", version);
+ return pci_module_init(&nortel_pci_driver);
+}
+
+static void __exit nortel_pci_exit(void)
+{
+ pci_unregister_driver(&nortel_pci_driver);
+ ssleep(1);
+}
+
+module_init(nortel_pci_init);
+module_exit(nortel_pci_exit);
+
+/*
+ * Local variables:
+ * c-indent-level: 8
+ * c-basic-offset: 8
+ * tab-width: 8
+ * End:
+ */
projects / linux-2.6-omap-h63xx.git / commitdiff