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