-/* orinoco_tmd.c 0.01
+/* 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@dorchain.net>
- * based heavily upon orinoco_plx.c Copyright (C) 2001 Daniel Barlow <dan@telent.net>
+ * 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
* Pheecom sells cards with the TMD chip as "ASIC version"
*/
-#include <linux/config.h>
+#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/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/wireless.h>
-#include <linux/list.h>
+#include <linux/delay.h>
#include <linux/pci.h>
-#include <linux/fcntl.h>
-
#include <pcmcia/cisreg.h>
-#include "hermes.h"
#include "orinoco.h"
-static char dev_info[] = "orinoco_tmd";
+#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;
+ }
-#define COR_VALUE (COR_LEVEL_REQ | COR_FUNC_ENA | COR_FUNC_ENA) /* Enable PC card with level triggered irqs and irq requests */
+ return 0;
+}
static int orinoco_tmd_init_one(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
int err = 0;
- u32 reg, addr;
struct orinoco_private *priv = NULL;
- unsigned long pccard_ioaddr = 0;
- unsigned long pccard_iolen = 0;
+ struct orinoco_tmd_card *card;
struct net_device *dev = NULL;
+ void __iomem *mem;
err = pci_enable_device(pdev);
- if (err)
- return -EIO;
-
- printk(KERN_DEBUG "TMD setup\n");
- pccard_ioaddr = pci_resource_start(pdev, 2);
- pccard_iolen = pci_resource_len(pdev, 2);
- if (! request_region(pccard_ioaddr, pccard_iolen, dev_info)) {
- printk(KERN_ERR "orinoco_tmd: I/O resource at 0x%lx len 0x%lx busy\n",
- pccard_ioaddr, pccard_iolen);
- pccard_ioaddr = 0;
- err = -EBUSY;
- goto fail;
+ if (err) {
+ printk(KERN_ERR PFX "Cannot enable PCI device\n");
+ return err;
}
- addr = pci_resource_start(pdev, 1);
- outb(COR_VALUE, addr);
- mdelay(1);
- reg = inb(addr);
- if (reg != COR_VALUE) {
- printk(KERN_ERR "orinoco_tmd: Error setting TMD COR values %x should be %x\n", reg, COR_VALUE);
- err = -EIO;
- goto fail;
+
+ 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;
}
- dev = alloc_orinocodev(0, NULL);
+ /* 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;
+ goto fail_alloc;
}
- priv = dev->priv;
- dev->base_addr = pccard_ioaddr;
+ 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);
- printk(KERN_DEBUG
- "Detected Orinoco/Prism2 TMD device at %s irq:%d, io addr:0x%lx\n",
- pci_name(pdev), pdev->irq, pccard_ioaddr);
+ hermes_struct_init(&priv->hw, mem, HERMES_16BIT_REGSPACING);
- hermes_struct_init(&(priv->hw), dev->base_addr,
- HERMES_IO, HERMES_16BIT_REGSPACING);
- pci_set_drvdata(pdev, dev);
+ 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);
+ err = request_irq(pdev->irq, orinoco_interrupt, SA_SHIRQ,
+ dev->name, dev);
if (err) {
- printk(KERN_ERR "orinoco_tmd: Error allocating IRQ %d.\n",
- pdev->irq);
+ printk(KERN_ERR PFX "Cannot allocate IRQ %d\n", pdev->irq);
err = -EBUSY;
- goto fail;
+ 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)
+ if (err) {
+ printk(KERN_ERR PFX "Cannot register network device\n");
goto fail;
+ }
- return 0; /* succeeded */
+ pci_set_drvdata(pdev, dev);
- fail:
- printk(KERN_DEBUG "orinoco_tmd: init_one(), FAIL!\n");
+ return 0;
- if (dev) {
- if (dev->irq)
- free_irq(dev->irq, dev);
-
- free_netdev(dev);
- }
+ fail:
+ free_irq(pdev->irq, dev);
- if (pccard_ioaddr)
- release_region(pccard_ioaddr, pccard_iolen);
+ 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;
- if (! dev)
- BUG();
+ BUG_ON(! dev);
unregister_netdev(dev);
-
- if (dev->irq)
- free_irq(dev->irq, dev);
-
+ free_irq(dev->irq, dev);
pci_set_drvdata(pdev, NULL);
-
- free_netdev(dev);
-
- release_region(pci_resource_start(pdev, 2), pci_resource_len(pdev, 2));
-
+ free_orinocodev(dev);
+ pci_iounmap(pdev, priv->hw.iobase);
+ pci_release_regions(pdev);
pci_disable_device(pdev);
}
MODULE_DEVICE_TABLE(pci, orinoco_tmd_pci_id_table);
static struct pci_driver orinoco_tmd_driver = {
- .name = "orinoco_tmd",
+ .name = DRIVER_NAME,
.id_table = orinoco_tmd_pci_id_table,
.probe = orinoco_tmd_init_one,
.remove = __devexit_p(orinoco_tmd_remove_one),
- .suspend = 0,
- .resume = 0,
};
-static char version[] __initdata = "orinoco_tmd.c 0.01 (Joerg Dorchain <joerg@dorchain.net>)";
+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");
-#ifdef MODULE_LICENSE
MODULE_LICENSE("Dual MPL/GPL");
-#endif
static int __init orinoco_tmd_init(void)
{
return pci_module_init(&orinoco_tmd_driver);
}
-extern void __exit orinoco_tmd_exit(void)
+static void __exit orinoco_tmd_exit(void)
{
pci_unregister_driver(&orinoco_tmd_driver);
- current->state = TASK_UNINTERRUPTIBLE;
- schedule_timeout(HZ);
+ ssleep(1);
}
module_init(orinoco_tmd_init);
git://git.onelab.eu / linux-2.6.git / blobdiff