/* orinoco_tmd.c * * Driver for Prism II devices which would usually be driven by orinoco_cs, * but are connected to the PCI bus by a TMD7160. * * Copyright (C) 2003 Joerg Dorchain <joerg AT dorchain.net> * based heavily upon orinoco_plx.c Copyright (C) 2001 Daniel Barlow * * 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. * Caution: this is experimental and probably buggy. For success and * failure reports for different cards and adaptors, see * orinoco_tmd_pci_id_table near the end of the file. If you have a * card we don't have the PCI id for, and looks like it should work, * drop me mail with the id and "it works"/"it doesn't work". * * Note: if everything gets detected fine but it doesn't actually send * or receive packets, your first port of call should probably be to * try newer firmware in the card. Especially if you're doing Ad-Hoc * modes * * The actual driving is done by orinoco.c, this is just resource * allocation stuff. * * This driver is modeled after the orinoco_plx driver. The main * difference is that the TMD chip has only IO port ranges and no * memory space, i.e. no access to the CIS. Compared to the PLX chip, * the io range functionalities are exchanged. * * Pheecom sells cards with the TMD chip as "ASIC version" */ #define DRIVER_NAME "orinoco_tmd" #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 <pcmcia/cisreg.h> #include "orinoco.h" #define COR_VALUE (COR_LEVEL_REQ | COR_FUNC_ENA) /* Enable PC card with interrupt in level trigger */ #define COR_RESET (0x80) /* reset bit in the COR register */ #define TMD_RESET_TIME (500) /* milliseconds */ /* Orinoco TMD specific data */ struct orinoco_tmd_card { u32 tmd_io; }; /* * Do a soft reset of the card using the Configuration Option Register */ static int orinoco_tmd_cor_reset(struct orinoco_private *priv) { hermes_t *hw = &priv->hw; struct orinoco_tmd_card *card = priv->card; u32 addr = card->tmd_io; unsigned long timeout; u16 reg; outb(COR_VALUE | COR_RESET, addr); mdelay(1); outb(COR_VALUE, addr); mdelay(1); /* Just in case, wait more until the card is no longer busy */ timeout = jiffies + (TMD_RESET_TIME * 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); } /* Did we timeout ? */ if (reg & HERMES_CMD_BUSY) { printk(KERN_ERR PFX "Busy timeout\n"); return -ETIMEDOUT; } return 0; } static int orinoco_tmd_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) { int err = 0; struct orinoco_private *priv = NULL; struct orinoco_tmd_card *card; struct net_device *dev = NULL; void __iomem *mem; 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; } mem = pci_iomap(pdev, 2, 0); if (! mem) { err = -ENOMEM; goto fail_iomap; } /* Allocate network device */ dev = alloc_orinocodev(sizeof(*card), orinoco_tmd_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->tmd_io = 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, mem, HERMES_16BIT_REGSPACING); printk(KERN_DEBUG PFX "Detected Orinoco/Prism2 TMD 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 = orinoco_tmd_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, mem); fail_iomap: pci_release_regions(pdev); fail_resources: pci_disable_device(pdev); return err; } static void __devexit orinoco_tmd_remove_one(struct pci_dev *pdev) { struct net_device *dev = pci_get_drvdata(pdev); struct orinoco_private *priv = dev->priv; BUG_ON(! dev); 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 orinoco_tmd_pci_id_table[] = { {0x15e8, 0x0131, PCI_ANY_ID, PCI_ANY_ID,}, /* NDC and OEMs, e.g. pheecom */ {0,}, }; MODULE_DEVICE_TABLE(pci, orinoco_tmd_pci_id_table); static struct pci_driver orinoco_tmd_driver = { .name = DRIVER_NAME, .id_table = orinoco_tmd_pci_id_table, .probe = orinoco_tmd_init_one, .remove = __devexit_p(orinoco_tmd_remove_one), }; static char version[] __initdata = DRIVER_NAME " " DRIVER_VERSION " (Joerg Dorchain <joerg@dorchain.net>)"; MODULE_AUTHOR("Joerg Dorchain <joerg@dorchain.net>"); MODULE_DESCRIPTION("Driver for wireless LAN cards using the TMD7160 PCI bridge"); MODULE_LICENSE("Dual MPL/GPL"); static int __init orinoco_tmd_init(void) { printk(KERN_DEBUG "%s\n", version); return pci_module_init(&orinoco_tmd_driver); } static void __exit orinoco_tmd_exit(void) { pci_unregister_driver(&orinoco_tmd_driver); ssleep(1); } module_init(orinoco_tmd_init); module_exit(orinoco_tmd_exit); /* * Local variables: * c-indent-level: 8 * c-basic-offset: 8 * tab-width: 8 * End: */