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, write to the Free Software 28 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 29 30******************************************************************************/ 31 32#ifdef __IN_PCMCIA_PACKAGE__ 33#include <pcmcia/k_compat.h> 34#endif 35#include <linux/init.h> 36#include <linux/kernel.h> 37#include <linux/module.h> 38#include <linux/ptrace.h> 39#include <linux/slab.h> 40#include <linux/string.h> 41#include <linux/netdevice.h> 42#include <linux/moduleparam.h> 43#include <linux/device.h> 44 45#include <pcmcia/cistpl.h> 46#include <pcmcia/cisreg.h> 47#include <pcmcia/ds.h> 48#include <pcmcia/ciscode.h> 49 50#include <asm/io.h> 51#include <linux/wireless.h> 52 53#include "atmel.h" 54 55 56/*====================================================================*/ 57 58MODULE_AUTHOR("Simon Kelley"); 59MODULE_DESCRIPTION("Support for Atmel at76c50x 802.11 wireless ethernet cards."); 60MODULE_LICENSE("GPL"); 61MODULE_SUPPORTED_DEVICE("Atmel at76c50x PCMCIA cards"); 62 63/*====================================================================*/ 64 65static int atmel_config(struct pcmcia_device *link); 66static void atmel_release(struct pcmcia_device *link); 67 68static void atmel_detach(struct pcmcia_device *p_dev); 69 70typedef struct local_info_t { 71 struct net_device *eth_dev; 72} local_info_t; 73 74static int atmel_probe(struct pcmcia_device *p_dev) 75{ 76 local_info_t *local; 77 78 dev_dbg(&p_dev->dev, "atmel_attach()\n"); 79 80 /* Allocate space for private device-specific data */ 81 local = kzalloc(sizeof(local_info_t), GFP_KERNEL); 82 if (!local) { 83 printk(KERN_ERR "atmel_cs: no memory for new device\n"); 84 return -ENOMEM; 85 } 86 p_dev->priv = local; 87 88 return atmel_config(p_dev); 89} /* atmel_attach */ 90 91static void atmel_detach(struct pcmcia_device *link) 92{ 93 dev_dbg(&link->dev, "atmel_detach\n"); 94 95 atmel_release(link); 96 97 kfree(link->priv); 98} 99 100/* Call-back function to interrogate PCMCIA-specific information 101 about the current existence of the card */ 102static int card_present(void *arg) 103{ 104 struct pcmcia_device *link = (struct pcmcia_device *)arg; 105 106 if (pcmcia_dev_present(link)) 107 return 1; 108 109 return 0; 110} 111 112static int atmel_config_check(struct pcmcia_device *p_dev, void *priv_data) 113{ 114 if (p_dev->config_index == 0) 115 return -EINVAL; 116 117 return pcmcia_request_io(p_dev); 118} 119 120static int atmel_config(struct pcmcia_device *link) 121{ 122 local_info_t *dev; 123 int ret; 124 const struct pcmcia_device_id *did; 125 126 dev = link->priv; 127 did = dev_get_drvdata(&link->dev); 128 129 dev_dbg(&link->dev, "atmel_config\n"); 130 131 link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_VPP | 132 CONF_AUTO_AUDIO | CONF_AUTO_SET_IO; 133 134 if (pcmcia_loop_config(link, atmel_config_check, NULL)) 135 goto failed; 136 137 if (!link->irq) { 138 dev_err(&link->dev, "atmel: cannot assign IRQ: check that CONFIG_ISA is set in kernel config."); 139 goto failed; 140 } 141 142 ret = pcmcia_enable_device(link); 143 if (ret) 144 goto failed; 145 146 ((local_info_t*)link->priv)->eth_dev = 147 init_atmel_card(link->irq, 148 link->resource[0]->start, 149 did ? did->driver_info : ATMEL_FW_TYPE_NONE, 150 &link->dev, 151 card_present, 152 link); 153 if (!((local_info_t*)link->priv)->eth_dev) 154 goto failed; 155 156 157 return 0; 158 159 failed: 160 atmel_release(link); 161 return -ENODEV; 162} 163 164static void atmel_release(struct pcmcia_device *link) 165{ 166 struct net_device *dev = ((local_info_t*)link->priv)->eth_dev; 167 168 dev_dbg(&link->dev, "atmel_release\n"); 169 170 if (dev) 171 stop_atmel_card(dev); 172 ((local_info_t*)link->priv)->eth_dev = NULL; 173 174 pcmcia_disable_device(link); 175} 176 177static int atmel_suspend(struct pcmcia_device *link) 178{ 179 local_info_t *local = link->priv; 180 181 netif_device_detach(local->eth_dev); 182 183 return 0; 184} 185 186static int atmel_resume(struct pcmcia_device *link) 187{ 188 local_info_t *local = link->priv; 189 190 atmel_open(local->eth_dev); 191 netif_device_attach(local->eth_dev); 192 193 return 0; 194} 195 196/*====================================================================*/ 197/* We use the driver_info field to store the correct firmware type for a card. */ 198 199#define PCMCIA_DEVICE_MANF_CARD_INFO(manf, card, info) { \ 200 .match_flags = PCMCIA_DEV_ID_MATCH_MANF_ID| \ 201 PCMCIA_DEV_ID_MATCH_CARD_ID, \ 202 .manf_id = (manf), \ 203 .card_id = (card), \ 204 .driver_info = (kernel_ulong_t)(info), } 205 206#define PCMCIA_DEVICE_PROD_ID12_INFO(v1, v2, vh1, vh2, info) { \ 207 .match_flags = PCMCIA_DEV_ID_MATCH_PROD_ID1| \ 208 PCMCIA_DEV_ID_MATCH_PROD_ID2, \ 209 .prod_id = { (v1), (v2), NULL, NULL }, \ 210 .prod_id_hash = { (vh1), (vh2), 0, 0 }, \ 211 .driver_info = (kernel_ulong_t)(info), } 212 213static const struct pcmcia_device_id atmel_ids[] = { 214 PCMCIA_DEVICE_MANF_CARD_INFO(0x0101, 0x0620, ATMEL_FW_TYPE_502_3COM), 215 PCMCIA_DEVICE_MANF_CARD_INFO(0x0101, 0x0696, ATMEL_FW_TYPE_502_3COM), 216 PCMCIA_DEVICE_MANF_CARD_INFO(0x01bf, 0x3302, ATMEL_FW_TYPE_502E), 217 PCMCIA_DEVICE_MANF_CARD_INFO(0xd601, 0x0007, ATMEL_FW_TYPE_502), 218 PCMCIA_DEVICE_PROD_ID12_INFO("11WAVE", "11WP611AL-E", 0x9eb2da1f, 0xc9a0d3f9, ATMEL_FW_TYPE_502E), 219 PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C502AR", 0xabda4164, 0x41b37e1f, ATMEL_FW_TYPE_502), 220 PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C502AR_D", 0xabda4164, 0x3675d704, ATMEL_FW_TYPE_502D), 221 PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C502AR_E", 0xabda4164, 0x4172e792, ATMEL_FW_TYPE_502E), 222 PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C504_R", 0xabda4164, 0x917f3d72, ATMEL_FW_TYPE_504_2958), 223 PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C504", 0xabda4164, 0x5040670a, ATMEL_FW_TYPE_504), 224 PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C504A", 0xabda4164, 0xe15ed87f, ATMEL_FW_TYPE_504A_2958), 225 PCMCIA_DEVICE_PROD_ID12_INFO("BT", "Voyager 1020 Laptop Adapter", 0xae49b86a, 0x1e957cd5, ATMEL_FW_TYPE_502), 226 PCMCIA_DEVICE_PROD_ID12_INFO("CNet", "CNWLC 11Mbps Wireless PC Card V-5", 0xbc477dde, 0x502fae6b, ATMEL_FW_TYPE_502E), 227 PCMCIA_DEVICE_PROD_ID12_INFO("IEEE 802.11b", "Wireless LAN PC Card", 0x5b878724, 0x122f1df6, ATMEL_FW_TYPE_502), 228 PCMCIA_DEVICE_PROD_ID12_INFO("IEEE 802.11b", "Wireless LAN Card S", 0x5b878724, 0x5fba533a, ATMEL_FW_TYPE_504_2958), 229 PCMCIA_DEVICE_PROD_ID12_INFO("OEM", "11Mbps Wireless LAN PC Card V-3", 0xfea54c90, 0x1c5b0f68, ATMEL_FW_TYPE_502), 230 PCMCIA_DEVICE_PROD_ID12_INFO("SMC", "2632W", 0xc4f8b18b, 0x30f38774, ATMEL_FW_TYPE_502D), 231 PCMCIA_DEVICE_PROD_ID12_INFO("SMC", "2632W-V2", 0xc4f8b18b, 0x172d1377, ATMEL_FW_TYPE_502), 232 PCMCIA_DEVICE_PROD_ID12_INFO("Wireless", "PC_CARD", 0xa407ecdd, 0x119f6314, ATMEL_FW_TYPE_502D), 233 PCMCIA_DEVICE_PROD_ID12_INFO("WLAN", "802.11b PC CARD", 0x575c516c, 0xb1f6dbc4, ATMEL_FW_TYPE_502D), 234 PCMCIA_DEVICE_PROD_ID12_INFO("LG", "LW2100N", 0xb474d43a, 0x6b1fec94, ATMEL_FW_TYPE_502E), 235 PCMCIA_DEVICE_NULL 236}; 237 238MODULE_DEVICE_TABLE(pcmcia, atmel_ids); 239 240static struct pcmcia_driver atmel_driver = { 241 .owner = THIS_MODULE, 242 .name = "atmel_cs", 243 .probe = atmel_probe, 244 .remove = atmel_detach, 245 .id_table = atmel_ids, 246 .suspend = atmel_suspend, 247 .resume = atmel_resume, 248}; 249 250static int __init atmel_cs_init(void) 251{ 252 return pcmcia_register_driver(&atmel_driver); 253} 254 255static void __exit atmel_cs_cleanup(void) 256{ 257 pcmcia_unregister_driver(&atmel_driver); 258} 259 260/* 261 This program is free software; you can redistribute it and/or 262 modify it under the terms of the GNU General Public License 263 as published by the Free Software Foundation; either version 2 264 of the License, or (at your option) any later version. 265 266 This program is distributed in the hope that it will be useful, 267 but WITHOUT ANY WARRANTY; without even the implied warranty of 268 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 269 GNU General Public License for more details. 270 271 In addition: 272 273 Redistribution and use in source and binary forms, with or without 274 modification, are permitted provided that the following conditions 275 are met: 276 277 1. Redistributions of source code must retain the above copyright 278 notice, this list of conditions and the following disclaimer. 279 2. Redistributions in binary form must reproduce the above copyright 280 notice, this list of conditions and the following disclaimer in the 281 documentation and/or other materials provided with the distribution. 282 3. The name of the author may not be used to endorse or promote 283 products derived from this software without specific prior written 284 permission. 285 286 THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 287 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 288 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 289 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 290 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 291 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 292 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 293 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 294 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 295 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 296 POSSIBILITY OF SUCH DAMAGE. 297*/ 298 299module_init(atmel_cs_init); 300module_exit(atmel_cs_cleanup); 301