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 struct local_info *dev; 121 int ret; 122 const struct pcmcia_device_id *did; 123 124 dev = link->priv; 125 did = dev_get_drvdata(&link->dev); 126 127 dev_dbg(&link->dev, "atmel_config\n"); 128 129 link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_VPP | 130 CONF_AUTO_AUDIO | CONF_AUTO_SET_IO; 131 132 if (pcmcia_loop_config(link, atmel_config_check, NULL)) 133 goto failed; 134 135 if (!link->irq) { 136 dev_err(&link->dev, "atmel: cannot assign IRQ: check that CONFIG_ISA is set in kernel config."); 137 goto failed; 138 } 139 140 ret = pcmcia_enable_device(link); 141 if (ret) 142 goto failed; 143 144 ((struct local_info *)link->priv)->eth_dev = 145 init_atmel_card(link->irq, 146 link->resource[0]->start, 147 did ? did->driver_info : ATMEL_FW_TYPE_NONE, 148 &link->dev, 149 card_present, 150 link); 151 if (!((struct local_info *)link->priv)->eth_dev) 152 goto failed; 153 154 155 return 0; 156 157 failed: 158 atmel_release(link); 159 return -ENODEV; 160 } 161 162 static void atmel_release(struct pcmcia_device *link) 163 { 164 struct net_device *dev = ((struct local_info *)link->priv)->eth_dev; 165 166 dev_dbg(&link->dev, "atmel_release\n"); 167 168 if (dev) 169 stop_atmel_card(dev); 170 ((struct local_info *)link->priv)->eth_dev = NULL; 171 172 pcmcia_disable_device(link); 173 } 174 175 static int atmel_suspend(struct pcmcia_device *link) 176 { 177 struct local_info *local = link->priv; 178 179 netif_device_detach(local->eth_dev); 180 181 return 0; 182 } 183 184 static int atmel_resume(struct pcmcia_device *link) 185 { 186 struct local_info *local = link->priv; 187 188 atmel_open(local->eth_dev); 189 netif_device_attach(local->eth_dev); 190 191 return 0; 192 } 193 194 /*====================================================================*/ 195 /* We use the driver_info field to store the correct firmware type for a card. */ 196 197 #define PCMCIA_DEVICE_MANF_CARD_INFO(manf, card, info) { \ 198 .match_flags = PCMCIA_DEV_ID_MATCH_MANF_ID| \ 199 PCMCIA_DEV_ID_MATCH_CARD_ID, \ 200 .manf_id = (manf), \ 201 .card_id = (card), \ 202 .driver_info = (kernel_ulong_t)(info), } 203 204 #define PCMCIA_DEVICE_PROD_ID12_INFO(v1, v2, vh1, vh2, info) { \ 205 .match_flags = PCMCIA_DEV_ID_MATCH_PROD_ID1| \ 206 PCMCIA_DEV_ID_MATCH_PROD_ID2, \ 207 .prod_id = { (v1), (v2), NULL, NULL }, \ 208 .prod_id_hash = { (vh1), (vh2), 0, 0 }, \ 209 .driver_info = (kernel_ulong_t)(info), } 210 211 static const struct pcmcia_device_id atmel_ids[] = { 212 PCMCIA_DEVICE_MANF_CARD_INFO(0x0101, 0x0620, ATMEL_FW_TYPE_502_3COM), 213 PCMCIA_DEVICE_MANF_CARD_INFO(0x0101, 0x0696, ATMEL_FW_TYPE_502_3COM), 214 PCMCIA_DEVICE_MANF_CARD_INFO(0x01bf, 0x3302, ATMEL_FW_TYPE_502E), 215 PCMCIA_DEVICE_MANF_CARD_INFO(0xd601, 0x0007, ATMEL_FW_TYPE_502), 216 PCMCIA_DEVICE_PROD_ID12_INFO("11WAVE", "11WP611AL-E", 0x9eb2da1f, 0xc9a0d3f9, ATMEL_FW_TYPE_502E), 217 PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C502AR", 0xabda4164, 0x41b37e1f, ATMEL_FW_TYPE_502), 218 PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C502AR_D", 0xabda4164, 0x3675d704, ATMEL_FW_TYPE_502D), 219 PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C502AR_E", 0xabda4164, 0x4172e792, ATMEL_FW_TYPE_502E), 220 PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C504_R", 0xabda4164, 0x917f3d72, ATMEL_FW_TYPE_504_2958), 221 PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C504", 0xabda4164, 0x5040670a, ATMEL_FW_TYPE_504), 222 PCMCIA_DEVICE_PROD_ID12_INFO("ATMEL", "AT76C504A", 0xabda4164, 0xe15ed87f, ATMEL_FW_TYPE_504A_2958), 223 PCMCIA_DEVICE_PROD_ID12_INFO("BT", "Voyager 1020 Laptop Adapter", 0xae49b86a, 0x1e957cd5, ATMEL_FW_TYPE_502), 224 PCMCIA_DEVICE_PROD_ID12_INFO("CNet", "CNWLC 11Mbps Wireless PC Card V-5", 0xbc477dde, 0x502fae6b, ATMEL_FW_TYPE_502E), 225 PCMCIA_DEVICE_PROD_ID12_INFO("IEEE 802.11b", "Wireless LAN PC Card", 0x5b878724, 0x122f1df6, ATMEL_FW_TYPE_502), 226 PCMCIA_DEVICE_PROD_ID12_INFO("IEEE 802.11b", "Wireless LAN Card S", 0x5b878724, 0x5fba533a, ATMEL_FW_TYPE_504_2958), 227 PCMCIA_DEVICE_PROD_ID12_INFO("OEM", "11Mbps Wireless LAN PC Card V-3", 0xfea54c90, 0x1c5b0f68, ATMEL_FW_TYPE_502), 228 PCMCIA_DEVICE_PROD_ID12_INFO("SMC", "2632W", 0xc4f8b18b, 0x30f38774, ATMEL_FW_TYPE_502D), 229 PCMCIA_DEVICE_PROD_ID12_INFO("SMC", "2632W-V2", 0xc4f8b18b, 0x172d1377, ATMEL_FW_TYPE_502), 230 PCMCIA_DEVICE_PROD_ID12_INFO("Wireless", "PC_CARD", 0xa407ecdd, 0x119f6314, ATMEL_FW_TYPE_502D), 231 PCMCIA_DEVICE_PROD_ID12_INFO("WLAN", "802.11b PC CARD", 0x575c516c, 0xb1f6dbc4, ATMEL_FW_TYPE_502D), 232 PCMCIA_DEVICE_PROD_ID12_INFO("LG", "LW2100N", 0xb474d43a, 0x6b1fec94, ATMEL_FW_TYPE_502E), 233 PCMCIA_DEVICE_NULL 234 }; 235 236 MODULE_DEVICE_TABLE(pcmcia, atmel_ids); 237 238 static struct pcmcia_driver atmel_driver = { 239 .owner = THIS_MODULE, 240 .name = "atmel_cs", 241 .probe = atmel_probe, 242 .remove = atmel_detach, 243 .id_table = atmel_ids, 244 .suspend = atmel_suspend, 245 .resume = atmel_resume, 246 }; 247 module_pcmcia_driver(atmel_driver); 248 249 /* 250 This program is free software; you can redistribute it and/or 251 modify it under the terms of the GNU General Public License 252 as published by the Free Software Foundation; either version 2 253 of the License, or (at your option) any later version. 254 255 This program is distributed in the hope that it will be useful, 256 but WITHOUT ANY WARRANTY; without even the implied warranty of 257 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 258 GNU General Public License for more details. 259 260 In addition: 261 262 Redistribution and use in source and binary forms, with or without 263 modification, are permitted provided that the following conditions 264 are met: 265 266 1. Redistributions of source code must retain the above copyright 267 notice, this list of conditions and the following disclaimer. 268 2. Redistributions in binary form must reproduce the above copyright 269 notice, this list of conditions and the following disclaimer in the 270 documentation and/or other materials provided with the distribution. 271 3. The name of the author may not be used to endorse or promote 272 products derived from this software without specific prior written 273 permission. 274 275 THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 276 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 277 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 278 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 279 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 280 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 281 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 282 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 283 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 284 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 285 POSSIBILITY OF SUCH DAMAGE. 286 */ 287