atmel_cs.c (9793B)
1/*** -*- linux-c -*- ********************************************************** 2 3 Driver for Atmel at76c502 at76c504 and at76c506 wireless cards. 4 5 Copyright 2000-2001 ATMEL Corporation. 6 Copyright 2003 Simon Kelley. 7 8 This code was developed from version 2.1.1 of the Atmel drivers, 9 released by Atmel corp. under the GPL in December 2002. It also 10 includes code from the Linux aironet drivers (C) Benjamin Reed, 11 and the Linux PCMCIA package, (C) David Hinds. 12 13 For all queries about this code, please contact the current author, 14 Simon Kelley <simon@thekelleys.org.uk> and not Atmel Corporation. 15 16 This program is free software; you can redistribute it and/or modify 17 it under the terms of the GNU General Public License as published by 18 the Free Software Foundation; either version 2 of the License, or 19 (at your option) any later version. 20 21 This software is distributed in the hope that it will be useful, 22 but WITHOUT ANY WARRANTY; without even the implied warranty of 23 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 24 GNU General Public License for more details. 25 26 You should have received a copy of the GNU General Public License 27 along with Atmel wireless lan drivers; if not, see 28 <http://www.gnu.org/licenses/>. 29 30******************************************************************************/ 31 32#ifdef __IN_PCMCIA_PACKAGE__ 33#include <pcmcia/k_compat.h> 34#endif 35#include <linux/kernel.h> 36#include <linux/module.h> 37#include <linux/ptrace.h> 38#include <linux/slab.h> 39#include <linux/string.h> 40#include <linux/netdevice.h> 41#include <linux/moduleparam.h> 42#include <linux/device.h> 43 44#include <pcmcia/cistpl.h> 45#include <pcmcia/cisreg.h> 46#include <pcmcia/ds.h> 47#include <pcmcia/ciscode.h> 48 49#include <asm/io.h> 50#include <linux/wireless.h> 51 52#include "atmel.h" 53 54 55/*====================================================================*/ 56 57MODULE_AUTHOR("Simon Kelley"); 58MODULE_DESCRIPTION("Support for Atmel at76c50x 802.11 wireless ethernet cards."); 59MODULE_LICENSE("GPL"); 60 61/*====================================================================*/ 62 63static int atmel_config(struct pcmcia_device *link); 64static void atmel_release(struct pcmcia_device *link); 65 66static void atmel_detach(struct pcmcia_device *p_dev); 67 68struct local_info { 69 struct net_device *eth_dev; 70}; 71 72static int atmel_probe(struct pcmcia_device *p_dev) 73{ 74 struct local_info *local; 75 76 dev_dbg(&p_dev->dev, "atmel_attach()\n"); 77 78 /* Allocate space for private device-specific data */ 79 local = kzalloc(sizeof(*local), GFP_KERNEL); 80 if (!local) 81 return -ENOMEM; 82 83 p_dev->priv = local; 84 85 return atmel_config(p_dev); 86} /* atmel_attach */ 87 88static void atmel_detach(struct pcmcia_device *link) 89{ 90 dev_dbg(&link->dev, "atmel_detach\n"); 91 92 atmel_release(link); 93 94 kfree(link->priv); 95} 96 97/* Call-back function to interrogate PCMCIA-specific information 98 about the current existence of the card */ 99static int card_present(void *arg) 100{ 101 struct pcmcia_device *link = (struct pcmcia_device *)arg; 102 103 if (pcmcia_dev_present(link)) 104 return 1; 105 106 return 0; 107} 108 109static int atmel_config_check(struct pcmcia_device *p_dev, void *priv_data) 110{ 111 if (p_dev->config_index == 0) 112 return -EINVAL; 113 114 return pcmcia_request_io(p_dev); 115} 116 117static int atmel_config(struct pcmcia_device *link) 118{ 119 int ret; 120 const struct pcmcia_device_id *did; 121 122 did = dev_get_drvdata(&link->dev); 123 124 dev_dbg(&link->dev, "atmel_config\n"); 125 126 link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_VPP | 127 CONF_AUTO_AUDIO | CONF_AUTO_SET_IO; 128 129 if (pcmcia_loop_config(link, atmel_config_check, NULL)) 130 goto failed; 131 132 if (!link->irq) { 133 dev_err(&link->dev, "atmel: cannot assign IRQ: check that CONFIG_ISA is set in kernel config."); 134 goto failed; 135 } 136 137 ret = pcmcia_enable_device(link); 138 if (ret) 139 goto failed; 140 141 ((struct local_info *)link->priv)->eth_dev = 142 init_atmel_card(link->irq, 143 link->resource[0]->start, 144 did ? did->driver_info : ATMEL_FW_TYPE_NONE, 145 &link->dev, 146 card_present, 147 link); 148 if (!((struct local_info *)link->priv)->eth_dev) 149 goto failed; 150 151 152 return 0; 153 154 failed: 155 atmel_release(link); 156 return -ENODEV; 157} 158 159static void atmel_release(struct pcmcia_device *link) 160{ 161 struct net_device *dev = ((struct local_info *)link->priv)->eth_dev; 162 163 dev_dbg(&link->dev, "atmel_release\n"); 164 165 if (dev) 166 stop_atmel_card(dev); 167 ((struct local_info *)link->priv)->eth_dev = NULL; 168 169 pcmcia_disable_device(link); 170} 171 172static int atmel_suspend(struct pcmcia_device *link) 173{ 174 struct local_info *local = link->priv; 175 176 netif_device_detach(local->eth_dev); 177 178 return 0; 179} 180 181static int atmel_resume(struct pcmcia_device *link) 182{ 183 struct local_info *local = link->priv; 184 185 atmel_open(local->eth_dev); 186 netif_device_attach(local->eth_dev); 187 188 return 0; 189} 190 191/*====================================================================*/ 192/* We use the driver_info field to store the correct firmware type for a card. */ 193 194#define PCMCIA_DEVICE_MANF_CARD_INFO(manf, card, info) { \ 195 .match_flags = PCMCIA_DEV_ID_MATCH_MANF_ID| \ 196 PCMCIA_DEV_ID_MATCH_CARD_ID, \ 197 .manf_id = (manf), \ 198 .card_id = (card), \ 199 .driver_info = (kernel_ulong_t)(info), } 200 201#define PCMCIA_DEVICE_PROD_ID12_INFO(v1, v2, vh1, vh2, info) { \ 202 .match_flags = PCMCIA_DEV_ID_MATCH_PROD_ID1| \ 203 PCMCIA_DEV_ID_MATCH_PROD_ID2, \ 204 .prod_id = { (v1), (v2), NULL, NULL }, \ 205 .prod_id_hash = { (vh1), (vh2), 0, 0 }, \ 206 .driver_info = (kernel_ulong_t)(info), } 207 208static const struct pcmcia_device_id atmel_ids[] = { 209 PCMCIA_DEVICE_MANF_CARD_INFO(0x0101, 0x0620, ATMEL_FW_TYPE_502_3COM), 210 PCMCIA_DEVICE_MANF_CARD_INFO(0x0101, 0x0696, ATMEL_FW_TYPE_502_3COM), 211 PCMCIA_DEVICE_MANF_CARD_INFO(0x01bf, 0x3302, ATMEL_FW_TYPE_502E), 212 PCMCIA_DEVICE_MANF_CARD_INFO(0xd601, 0x0007, ATMEL_FW_TYPE_502), 213 PCMCIA_DEVICE_PROD_ID12_INFO("11WAVE", "11WP611AL-E", 0x9eb2da1f, 0xc9a0d3f9, ATMEL_FW_TYPE_502E), 214 PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C502AR", 0xabda4164, 0x41b37e1f, ATMEL_FW_TYPE_502), 215 PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C502AR_D", 0xabda4164, 0x3675d704, ATMEL_FW_TYPE_502D), 216 PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C502AR_E", 0xabda4164, 0x4172e792, ATMEL_FW_TYPE_502E), 217 PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C504_R", 0xabda4164, 0x917f3d72, ATMEL_FW_TYPE_504_2958), 218 PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C504", 0xabda4164, 0x5040670a, ATMEL_FW_TYPE_504), 219 PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C504A", 0xabda4164, 0xe15ed87f, ATMEL_FW_TYPE_504A_2958), 220 PCMCIA_DEVICE_PROD_ID12_INFO("BT", "Voyager 1020 Laptop Adapter", 0xae49b86a, 0x1e957cd5, ATMEL_FW_TYPE_502), 221 PCMCIA_DEVICE_PROD_ID12_INFO("CNet", "CNWLC 11Mbps Wireless PC Card V-5", 0xbc477dde, 0x502fae6b, ATMEL_FW_TYPE_502E), 222 PCMCIA_DEVICE_PROD_ID12_INFO("IEEE 802.11b", "Wireless LAN PC Card", 0x5b878724, 0x122f1df6, ATMEL_FW_TYPE_502), 223 PCMCIA_DEVICE_PROD_ID12_INFO("IEEE 802.11b", "Wireless LAN Card S", 0x5b878724, 0x5fba533a, ATMEL_FW_TYPE_504_2958), 224 PCMCIA_DEVICE_PROD_ID12_INFO("OEM", "11Mbps Wireless LAN PC Card V-3", 0xfea54c90, 0x1c5b0f68, ATMEL_FW_TYPE_502), 225 PCMCIA_DEVICE_PROD_ID12_INFO("SMC", "2632W", 0xc4f8b18b, 0x30f38774, ATMEL_FW_TYPE_502D), 226 PCMCIA_DEVICE_PROD_ID12_INFO("SMC", "2632W-V2", 0xc4f8b18b, 0x172d1377, ATMEL_FW_TYPE_502), 227 PCMCIA_DEVICE_PROD_ID12_INFO("Wireless", "PC_CARD", 0xa407ecdd, 0x119f6314, ATMEL_FW_TYPE_502D), 228 PCMCIA_DEVICE_PROD_ID12_INFO("WLAN", "802.11b PC CARD", 0x575c516c, 0xb1f6dbc4, ATMEL_FW_TYPE_502D), 229 PCMCIA_DEVICE_PROD_ID12_INFO("LG", "LW2100N", 0xb474d43a, 0x6b1fec94, ATMEL_FW_TYPE_502E), 230 PCMCIA_DEVICE_NULL 231}; 232 233MODULE_DEVICE_TABLE(pcmcia, atmel_ids); 234 235static struct pcmcia_driver atmel_driver = { 236 .owner = THIS_MODULE, 237 .name = "atmel_cs", 238 .probe = atmel_probe, 239 .remove = atmel_detach, 240 .id_table = atmel_ids, 241 .suspend = atmel_suspend, 242 .resume = atmel_resume, 243}; 244module_pcmcia_driver(atmel_driver); 245 246/* 247 This program is free software; you can redistribute it and/or 248 modify it under the terms of the GNU General Public License 249 as published by the Free Software Foundation; either version 2 250 of the License, or (at your option) any later version. 251 252 This program is distributed in the hope that it will be useful, 253 but WITHOUT ANY WARRANTY; without even the implied warranty of 254 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 255 GNU General Public License for more details. 256 257 In addition: 258 259 Redistribution and use in source and binary forms, with or without 260 modification, are permitted provided that the following conditions 261 are met: 262 263 1. Redistributions of source code must retain the above copyright 264 notice, this list of conditions and the following disclaimer. 265 2. Redistributions in binary form must reproduce the above copyright 266 notice, this list of conditions and the following disclaimer in the 267 documentation and/or other materials provided with the distribution. 268 3. The name of the author may not be used to endorse or promote 269 products derived from this software without specific prior written 270 permission. 271 272 THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 273 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 274 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 275 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 276 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 277 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 278 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 279 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 280 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 281 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 282 POSSIBILITY OF SUCH DAMAGE. 283*/