![Pavel Roskin](/assets/img/avatar_default.png)
The resource data in the network device is intended for ISA and other older busses, but not for PCI. Don't put PCI data there. Don't (ab)use the network device for keeping the IRQ number. Retire orinoco_pci_setup_netdev(), and print some minimal information to the kernel log instead, identifying the network device and the driver mostly to identify problems at startup. Scripts should rely on sysfs. Signed-off-by: Pavel Roskin <proski@gnu.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
250 lines
6.5 KiB
C
250 lines
6.5 KiB
C
/* orinoco_tmd.c
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*
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* Driver for Prism II devices which would usually be driven by orinoco_cs,
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* but are connected to the PCI bus by a TMD7160.
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*
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* Copyright (C) 2003 Joerg Dorchain <joerg AT dorchain.net>
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* based heavily upon orinoco_plx.c Copyright (C) 2001 Daniel Barlow
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*
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* The contents of this file are subject to the Mozilla Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License
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* at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS"
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* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
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* the License for the specific language governing rights and
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* limitations under the License.
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*
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* Alternatively, the contents of this file may be used under the
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* terms of the GNU General Public License version 2 (the "GPL"), in
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* which case the provisions of the GPL are applicable instead of the
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* above. If you wish to allow the use of your version of this file
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* only under the terms of the GPL and not to allow others to use your
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* version of this file under the MPL, indicate your decision by
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* deleting the provisions above and replace them with the notice and
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* other provisions required by the GPL. If you do not delete the
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* provisions above, a recipient may use your version of this file
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* under either the MPL or the GPL.
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*
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* The actual driving is done by orinoco.c, this is just resource
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* allocation stuff.
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*
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* This driver is modeled after the orinoco_plx driver. The main
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* difference is that the TMD chip has only IO port ranges and doesn't
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* provide access to the PCMCIA attribute space.
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*
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* Pheecom sells cards with the TMD chip as "ASIC version"
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*/
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#define DRIVER_NAME "orinoco_tmd"
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#define PFX DRIVER_NAME ": "
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#include <linux/config.h>
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/pci.h>
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#include <pcmcia/cisreg.h>
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#include "orinoco.h"
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#include "orinoco_pci.h"
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#define COR_VALUE (COR_LEVEL_REQ | COR_FUNC_ENA) /* Enable PC card with interrupt in level trigger */
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#define COR_RESET (0x80) /* reset bit in the COR register */
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#define TMD_RESET_TIME (500) /* milliseconds */
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/*
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* Do a soft reset of the card using the Configuration Option Register
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*/
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static int orinoco_tmd_cor_reset(struct orinoco_private *priv)
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{
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hermes_t *hw = &priv->hw;
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struct orinoco_pci_card *card = priv->card;
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unsigned long timeout;
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u16 reg;
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iowrite8(COR_VALUE | COR_RESET, card->bridge_io);
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mdelay(1);
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iowrite8(COR_VALUE, card->bridge_io);
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mdelay(1);
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/* Just in case, wait more until the card is no longer busy */
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timeout = jiffies + (TMD_RESET_TIME * HZ / 1000);
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reg = hermes_read_regn(hw, CMD);
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while (time_before(jiffies, timeout) && (reg & HERMES_CMD_BUSY)) {
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mdelay(1);
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reg = hermes_read_regn(hw, CMD);
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}
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/* Still busy? */
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if (reg & HERMES_CMD_BUSY) {
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printk(KERN_ERR PFX "Busy timeout\n");
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return -ETIMEDOUT;
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}
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return 0;
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}
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static int orinoco_tmd_init_one(struct pci_dev *pdev,
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const struct pci_device_id *ent)
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{
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int err;
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struct orinoco_private *priv;
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struct orinoco_pci_card *card;
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struct net_device *dev;
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void __iomem *hermes_io, *bridge_io;
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err = pci_enable_device(pdev);
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if (err) {
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printk(KERN_ERR PFX "Cannot enable PCI device\n");
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return err;
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}
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err = pci_request_regions(pdev, DRIVER_NAME);
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if (err) {
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printk(KERN_ERR PFX "Cannot obtain PCI resources\n");
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goto fail_resources;
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}
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bridge_io = pci_iomap(pdev, 1, 0);
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if (!bridge_io) {
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printk(KERN_ERR PFX "Cannot map bridge registers\n");
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err = -EIO;
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goto fail_map_bridge;
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}
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hermes_io = pci_iomap(pdev, 2, 0);
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if (!hermes_io) {
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printk(KERN_ERR PFX "Cannot map chipset registers\n");
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err = -EIO;
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goto fail_map_hermes;
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}
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/* Allocate network device */
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dev = alloc_orinocodev(sizeof(*card), orinoco_tmd_cor_reset);
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if (!dev) {
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printk(KERN_ERR PFX "Cannot allocate network device\n");
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err = -ENOMEM;
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goto fail_alloc;
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}
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priv = netdev_priv(dev);
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card = priv->card;
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card->bridge_io = bridge_io;
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SET_MODULE_OWNER(dev);
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SET_NETDEV_DEV(dev, &pdev->dev);
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hermes_struct_init(&priv->hw, hermes_io, HERMES_16BIT_REGSPACING);
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err = request_irq(pdev->irq, orinoco_interrupt, SA_SHIRQ,
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dev->name, dev);
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if (err) {
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printk(KERN_ERR PFX "Cannot allocate IRQ %d\n", pdev->irq);
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err = -EBUSY;
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goto fail_irq;
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}
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err = orinoco_tmd_cor_reset(priv);
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if (err) {
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printk(KERN_ERR PFX "Initial reset failed\n");
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goto fail;
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}
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err = register_netdev(dev);
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if (err) {
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printk(KERN_ERR PFX "Cannot register network device\n");
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goto fail;
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}
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pci_set_drvdata(pdev, dev);
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printk(KERN_DEBUG "%s: " DRIVER_NAME " at %s\n", dev->name,
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pci_name(pdev));
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return 0;
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fail:
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free_irq(pdev->irq, dev);
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fail_irq:
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pci_set_drvdata(pdev, NULL);
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free_orinocodev(dev);
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fail_alloc:
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pci_iounmap(pdev, hermes_io);
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fail_map_hermes:
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pci_iounmap(pdev, bridge_io);
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fail_map_bridge:
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pci_release_regions(pdev);
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fail_resources:
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pci_disable_device(pdev);
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return err;
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}
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static void __devexit orinoco_tmd_remove_one(struct pci_dev *pdev)
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{
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struct net_device *dev = pci_get_drvdata(pdev);
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struct orinoco_private *priv = dev->priv;
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struct orinoco_pci_card *card = priv->card;
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unregister_netdev(dev);
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free_irq(pdev->irq, dev);
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pci_set_drvdata(pdev, NULL);
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free_orinocodev(dev);
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pci_iounmap(pdev, priv->hw.iobase);
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pci_iounmap(pdev, card->bridge_io);
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pci_release_regions(pdev);
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pci_disable_device(pdev);
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}
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static struct pci_device_id orinoco_tmd_id_table[] = {
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{0x15e8, 0x0131, PCI_ANY_ID, PCI_ANY_ID,}, /* NDC and OEMs, e.g. pheecom */
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{0,},
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};
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MODULE_DEVICE_TABLE(pci, orinoco_tmd_id_table);
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static struct pci_driver orinoco_tmd_driver = {
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.name = DRIVER_NAME,
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.id_table = orinoco_tmd_id_table,
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.probe = orinoco_tmd_init_one,
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.remove = __devexit_p(orinoco_tmd_remove_one),
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.suspend = orinoco_pci_suspend,
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.resume = orinoco_pci_resume,
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};
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static char version[] __initdata = DRIVER_NAME " " DRIVER_VERSION
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" (Joerg Dorchain <joerg@dorchain.net>)";
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MODULE_AUTHOR("Joerg Dorchain <joerg@dorchain.net>");
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MODULE_DESCRIPTION("Driver for wireless LAN cards using the TMD7160 PCI bridge");
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MODULE_LICENSE("Dual MPL/GPL");
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static int __init orinoco_tmd_init(void)
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{
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printk(KERN_DEBUG "%s\n", version);
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return pci_module_init(&orinoco_tmd_driver);
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}
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static void __exit orinoco_tmd_exit(void)
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{
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pci_unregister_driver(&orinoco_tmd_driver);
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}
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module_init(orinoco_tmd_init);
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module_exit(orinoco_tmd_exit);
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/*
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* Local variables:
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* c-indent-level: 8
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* c-basic-offset: 8
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* tab-width: 8
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* End:
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*/
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