/* 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:
*/
