284 lines
9.6 KiB
C
284 lines
9.6 KiB
C
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/*** -*- linux-c -*- **********************************************************
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Driver for Atmel at76c502 at76c504 and at76c506 wireless cards.
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Copyright 2000-2001 ATMEL Corporation.
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Copyright 2003 Simon Kelley.
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This code was developed from version 2.1.1 of the Atmel drivers,
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released by Atmel corp. under the GPL in December 2002. It also
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includes code from the Linux aironet drivers (C) Benjamin Reed,
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and the Linux PCMCIA package, (C) David Hinds.
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For all queries about this code, please contact the current author,
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Simon Kelley <simon@thekelleys.org.uk> and not Atmel Corporation.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This software is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Atmel wireless lan drivers; if not, see
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<http://www.gnu.org/licenses/>.
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******************************************************************************/
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#ifdef __IN_PCMCIA_PACKAGE__
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#include <pcmcia/k_compat.h>
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#endif
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/ptrace.h>
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#include <linux/slab.h>
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#include <linux/string.h>
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#include <linux/netdevice.h>
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#include <linux/moduleparam.h>
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#include <linux/device.h>
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#include <pcmcia/cistpl.h>
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#include <pcmcia/cisreg.h>
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#include <pcmcia/ds.h>
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#include <pcmcia/ciscode.h>
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#include <asm/io.h>
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#include <linux/wireless.h>
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#include "atmel.h"
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/*====================================================================*/
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MODULE_AUTHOR("Simon Kelley");
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MODULE_DESCRIPTION("Support for Atmel at76c50x 802.11 wireless ethernet cards.");
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MODULE_LICENSE("GPL");
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/*====================================================================*/
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static int atmel_config(struct pcmcia_device *link);
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static void atmel_release(struct pcmcia_device *link);
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static void atmel_detach(struct pcmcia_device *p_dev);
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struct local_info {
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struct net_device *eth_dev;
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};
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static int atmel_probe(struct pcmcia_device *p_dev)
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{
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struct local_info *local;
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dev_dbg(&p_dev->dev, "atmel_attach()\n");
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/* Allocate space for private device-specific data */
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local = kzalloc(sizeof(*local), GFP_KERNEL);
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if (!local)
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return -ENOMEM;
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p_dev->priv = local;
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return atmel_config(p_dev);
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} /* atmel_attach */
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static void atmel_detach(struct pcmcia_device *link)
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{
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dev_dbg(&link->dev, "atmel_detach\n");
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atmel_release(link);
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kfree(link->priv);
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}
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/* Call-back function to interrogate PCMCIA-specific information
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about the current existence of the card */
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static int card_present(void *arg)
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{
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struct pcmcia_device *link = (struct pcmcia_device *)arg;
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if (pcmcia_dev_present(link))
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return 1;
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return 0;
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}
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static int atmel_config_check(struct pcmcia_device *p_dev, void *priv_data)
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{
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if (p_dev->config_index == 0)
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return -EINVAL;
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return pcmcia_request_io(p_dev);
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}
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static int atmel_config(struct pcmcia_device *link)
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{
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int ret;
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const struct pcmcia_device_id *did;
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did = dev_get_drvdata(&link->dev);
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dev_dbg(&link->dev, "atmel_config\n");
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link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_VPP |
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CONF_AUTO_AUDIO | CONF_AUTO_SET_IO;
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if (pcmcia_loop_config(link, atmel_config_check, NULL))
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goto failed;
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if (!link->irq) {
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dev_err(&link->dev, "atmel: cannot assign IRQ: check that CONFIG_ISA is set in kernel config.");
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goto failed;
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}
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ret = pcmcia_enable_device(link);
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if (ret)
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goto failed;
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((struct local_info *)link->priv)->eth_dev =
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init_atmel_card(link->irq,
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link->resource[0]->start,
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did ? did->driver_info : ATMEL_FW_TYPE_NONE,
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&link->dev,
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card_present,
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link);
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if (!((struct local_info *)link->priv)->eth_dev)
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goto failed;
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return 0;
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failed:
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atmel_release(link);
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return -ENODEV;
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}
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static void atmel_release(struct pcmcia_device *link)
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{
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struct net_device *dev = ((struct local_info *)link->priv)->eth_dev;
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dev_dbg(&link->dev, "atmel_release\n");
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if (dev)
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stop_atmel_card(dev);
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((struct local_info *)link->priv)->eth_dev = NULL;
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pcmcia_disable_device(link);
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}
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static int atmel_suspend(struct pcmcia_device *link)
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{
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struct local_info *local = link->priv;
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netif_device_detach(local->eth_dev);
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return 0;
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}
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static int atmel_resume(struct pcmcia_device *link)
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{
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struct local_info *local = link->priv;
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atmel_open(local->eth_dev);
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netif_device_attach(local->eth_dev);
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return 0;
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}
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/*====================================================================*/
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/* We use the driver_info field to store the correct firmware type for a card. */
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#define PCMCIA_DEVICE_MANF_CARD_INFO(manf, card, info) { \
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.match_flags = PCMCIA_DEV_ID_MATCH_MANF_ID| \
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PCMCIA_DEV_ID_MATCH_CARD_ID, \
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.manf_id = (manf), \
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.card_id = (card), \
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.driver_info = (kernel_ulong_t)(info), }
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#define PCMCIA_DEVICE_PROD_ID12_INFO(v1, v2, vh1, vh2, info) { \
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.match_flags = PCMCIA_DEV_ID_MATCH_PROD_ID1| \
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PCMCIA_DEV_ID_MATCH_PROD_ID2, \
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.prod_id = { (v1), (v2), NULL, NULL }, \
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.prod_id_hash = { (vh1), (vh2), 0, 0 }, \
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.driver_info = (kernel_ulong_t)(info), }
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static const struct pcmcia_device_id atmel_ids[] = {
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PCMCIA_DEVICE_MANF_CARD_INFO(0x0101, 0x0620, ATMEL_FW_TYPE_502_3COM),
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PCMCIA_DEVICE_MANF_CARD_INFO(0x0101, 0x0696, ATMEL_FW_TYPE_502_3COM),
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PCMCIA_DEVICE_MANF_CARD_INFO(0x01bf, 0x3302, ATMEL_FW_TYPE_502E),
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PCMCIA_DEVICE_MANF_CARD_INFO(0xd601, 0x0007, ATMEL_FW_TYPE_502),
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PCMCIA_DEVICE_PROD_ID12_INFO("11WAVE", "11WP611AL-E", 0x9eb2da1f, 0xc9a0d3f9, ATMEL_FW_TYPE_502E),
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PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C502AR", 0xabda4164, 0x41b37e1f, ATMEL_FW_TYPE_502),
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PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C502AR_D", 0xabda4164, 0x3675d704, ATMEL_FW_TYPE_502D),
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PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C502AR_E", 0xabda4164, 0x4172e792, ATMEL_FW_TYPE_502E),
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PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C504_R", 0xabda4164, 0x917f3d72, ATMEL_FW_TYPE_504_2958),
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PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C504", 0xabda4164, 0x5040670a, ATMEL_FW_TYPE_504),
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PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C504A", 0xabda4164, 0xe15ed87f, ATMEL_FW_TYPE_504A_2958),
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PCMCIA_DEVICE_PROD_ID12_INFO("BT", "Voyager 1020 Laptop Adapter", 0xae49b86a, 0x1e957cd5, ATMEL_FW_TYPE_502),
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PCMCIA_DEVICE_PROD_ID12_INFO("CNet", "CNWLC 11Mbps Wireless PC Card V-5", 0xbc477dde, 0x502fae6b, ATMEL_FW_TYPE_502E),
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PCMCIA_DEVICE_PROD_ID12_INFO("IEEE 802.11b", "Wireless LAN PC Card", 0x5b878724, 0x122f1df6, ATMEL_FW_TYPE_502),
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PCMCIA_DEVICE_PROD_ID12_INFO("IEEE 802.11b", "Wireless LAN Card S", 0x5b878724, 0x5fba533a, ATMEL_FW_TYPE_504_2958),
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PCMCIA_DEVICE_PROD_ID12_INFO("OEM", "11Mbps Wireless LAN PC Card V-3", 0xfea54c90, 0x1c5b0f68, ATMEL_FW_TYPE_502),
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PCMCIA_DEVICE_PROD_ID12_INFO("SMC", "2632W", 0xc4f8b18b, 0x30f38774, ATMEL_FW_TYPE_502D),
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PCMCIA_DEVICE_PROD_ID12_INFO("SMC", "2632W-V2", 0xc4f8b18b, 0x172d1377, ATMEL_FW_TYPE_502),
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PCMCIA_DEVICE_PROD_ID12_INFO("Wireless", "PC_CARD", 0xa407ecdd, 0x119f6314, ATMEL_FW_TYPE_502D),
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PCMCIA_DEVICE_PROD_ID12_INFO("WLAN", "802.11b PC CARD", 0x575c516c, 0xb1f6dbc4, ATMEL_FW_TYPE_502D),
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PCMCIA_DEVICE_PROD_ID12_INFO("LG", "LW2100N", 0xb474d43a, 0x6b1fec94, ATMEL_FW_TYPE_502E),
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PCMCIA_DEVICE_NULL
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};
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MODULE_DEVICE_TABLE(pcmcia, atmel_ids);
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static struct pcmcia_driver atmel_driver = {
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.owner = THIS_MODULE,
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.name = "atmel_cs",
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.probe = atmel_probe,
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.remove = atmel_detach,
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.id_table = atmel_ids,
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.suspend = atmel_suspend,
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.resume = atmel_resume,
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};
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module_pcmcia_driver(atmel_driver);
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/*
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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In addition:
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. The name of the author may not be used to endorse or promote
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products derived from this software without specific prior written
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permission.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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