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/* -*- linux-c -*- */
/*
* $Id: at76c503-fw_skel.c,v 1.5 2004/02/20 22:14:42 jal2 Exp $
*
* Driver for at76c503-based devices based on the Atmel "Fast-Vnet" reference
*
* Copyright (c) 2002 - 2003 Oliver Kurth <oku@masqmail.cx>
* Changes Copyright (c) 2003 Joerg Albert <joerg.albert@gmx.de>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This file is the skeleton used in every fw-specific file.
* It assumes to have the following defines
*
* DRIVER_NAME, DRIVER_AUTHOR, DRIVER_DESC, FW_NAME
* BOARDTYPE
*
* and these variables:
* struct usb_device_id dev_table
*
*/
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 0)
extern inline char *fw_dev_param(struct usb_device *udev, char *buf)
{
snprintf(buf, FIRMWARE_NAME_MAX, "usb-%s-%s",
udev->bus->bus_name, udev->devpath);
return buf;
}
#else
#define fw_dev_param(udev, buf) (&udev->dev)
#endif
MODULE_DEVICE_TABLE (usb, dev_table);
/* this is the firmware we use */
const struct firmware *fw;
/* Module paramaters */
static char netdev_name[IFNAMSIZ+1] = "wlan%d";
MODULE_PARM(netdev_name, "c" __MODULE_STRING(IFNAMSIZ));
MODULE_PARM_DESC(netdev_name,
"network device name (default is wlan%d)");
static int debug = 1;
MODULE_PARM(debug, "i");
MODULE_PARM_DESC(debug,
"debug output (default: 1)");
/* Use our own dbg macro */
#undef dbg
#define dbg(format, arg...) \
do { \
if (debug) \
printk(KERN_DEBUG __FILE__ ": " format "\n" , ## arg);\
} while (0)
/* local function prototypes */
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
static void *at76c50x_probe(struct usb_device *udev, unsigned int ifnum,
const struct usb_device_id *id);
static void at76c50x_disconnect(struct usb_device *dev, void *ptr);
#else
static int at76c50x_probe(struct usb_interface *interface,
const struct usb_device_id *id);
static void at76c50x_disconnect(struct usb_interface *interface);
#endif
/* structure for registering this driver with the usb subsystem */
static struct usb_driver module_usb = {
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20)
owner: THIS_MODULE,
#endif
name: DRIVER_NAME,
probe: at76c50x_probe,
disconnect: at76c50x_disconnect,
id_table: dev_table,
};
/* Module and USB entry points */
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
static void *at76c50x_probe(struct usb_device *udev, unsigned int ifnum,
const struct usb_device_id *id)
#else
static int at76c50x_probe(struct usb_interface *interface,
const struct usb_device_id *id)
#endif
{
void *devptr = NULL;
int retval;
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
#define RETERR(x) return NULL
#else
#define RETERR(x) return x
struct usb_device *udev __attribute__ ((unused));
udev = interface_to_usbdev(interface);
#endif
/* if fw is statically compiled in, we use it */
if (static_fw.size > 0) {
dbg("using compiled-in firmware");
fw = &static_fw;
} else {
#ifdef CONFIG_AT76C503_FIRMWARE_DOWNLOAD
char buf[FIRMWARE_NAME_MAX] __attribute__ ((unused));
if (fw == NULL) {
dbg("downloading firmware " FW_NAME);
if (request_firmware(&fw, FW_NAME,
fw_dev_param(udev,buf)) == 0) {
dbg("got it.");
} else {
err("firmware " FW_NAME " not found.");
err("You may need to download the firmware from "
"http://www.thekelleys.org.uk/atmel or"
"ftp://ftp.berlios.de/pub/at76c503a/firmware/");
RETERR(-EFAULT);
}
} else
dbg("re-using previously loaded fw");
#else
err("either configure driver for firmware loader or compile"
"firmware in");
RETERR(-EFAULT);
#endif
}
retval = at76c503_do_probe(THIS_MODULE, udev, &module_usb, fw->data, fw->size,
BOARDTYPE, netdev_name, &devptr);
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
return devptr;
#else
return retval;
#endif
}
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
static void at76c50x_disconnect(struct usb_device *dev, void *ptr)
#else
static void at76c50x_disconnect(struct usb_interface *interface)
#endif
{
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
struct at76c503 *ptr;
ptr = usb_get_intfdata (interface);
usb_set_intfdata(interface, NULL);
#endif
info("%s disconnecting", ((struct at76c503 *)ptr)->netdev->name);
at76c503_delete_device(ptr);
info(DRIVER_NAME " disconnected");
}
static int __init mod_init(void)
{
int result;
info(DRIVER_DESC " " DRIVER_VERSION " loading");
/* register this driver with the USB subsystem */
result = usb_register(&module_usb);
if (result < 0) {
err("usb_register failed (status %d)", result);
return -1;
}
fw = NULL;
return 0;
}
static void __exit mod_exit(void)
{
info(DRIVER_DESC " " DRIVER_VERSION " unloading");
usb_deregister(&module_usb);
#ifdef CONFIG_AT76C503_FIRMWARE_DOWNLOAD
if (static_fw.size == 0 && fw != NULL)
/* we had loaded and allocated the buffer before */
release_firmware(fw);
#endif
}
module_init (mod_init);
module_exit (mod_exit);
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
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