/drivers/net/wireless/airo_cs.c
C | 236 lines | 130 code | 44 blank | 62 comment | 9 complexity | 83854f8acae547b27223954660f80315 MD5 | raw file
Possible License(s): LGPL-2.0, AGPL-1.0, GPL-2.0
1/*====================================================================== 2 3 Aironet driver for 4500 and 4800 series cards 4 5 This code is released under both the GPL version 2 and BSD licenses. 6 Either license may be used. The respective licenses are found at 7 the end of this file. 8 9 This code was developed by Benjamin Reed <breed@users.sourceforge.net> 10 including portions of which come from the Aironet PC4500 11 Developer's Reference Manual and used with permission. Copyright 12 (C) 1999 Benjamin Reed. All Rights Reserved. Permission to use 13 code in the Developer's manual was granted for this driver by 14 Aironet. 15 16 In addition this module was derived from dummy_cs. 17 The initial developer of dummy_cs is David A. Hinds 18 <dahinds@users.sourceforge.net>. Portions created by David A. Hinds 19 are Copyright (C) 1999 David A. Hinds. All Rights Reserved. 20 21======================================================================*/ 22 23#ifdef __IN_PCMCIA_PACKAGE__ 24#include <pcmcia/k_compat.h> 25#endif 26#include <linux/init.h> 27#include <linux/kernel.h> 28#include <linux/module.h> 29#include <linux/ptrace.h> 30#include <linux/slab.h> 31#include <linux/string.h> 32#include <linux/timer.h> 33#include <linux/netdevice.h> 34 35#include <pcmcia/cistpl.h> 36#include <pcmcia/cisreg.h> 37#include <pcmcia/ds.h> 38 39#include <linux/io.h> 40#include <asm/system.h> 41 42#include "airo.h" 43 44 45/*====================================================================*/ 46 47MODULE_AUTHOR("Benjamin Reed"); 48MODULE_DESCRIPTION("Support for Cisco/Aironet 802.11 wireless ethernet " 49 "cards. This is the module that links the PCMCIA card " 50 "with the airo module."); 51MODULE_LICENSE("Dual BSD/GPL"); 52MODULE_SUPPORTED_DEVICE("Aironet 4500, 4800 and Cisco 340 PCMCIA cards"); 53 54/*====================================================================*/ 55 56static int airo_config(struct pcmcia_device *link); 57static void airo_release(struct pcmcia_device *link); 58 59static void airo_detach(struct pcmcia_device *p_dev); 60 61typedef struct local_info_t { 62 struct net_device *eth_dev; 63} local_info_t; 64 65static int airo_probe(struct pcmcia_device *p_dev) 66{ 67 local_info_t *local; 68 69 dev_dbg(&p_dev->dev, "airo_attach()\n"); 70 71 /* Allocate space for private device-specific data */ 72 local = kzalloc(sizeof(local_info_t), GFP_KERNEL); 73 if (!local) { 74 printk(KERN_ERR "airo_cs: no memory for new device\n"); 75 return -ENOMEM; 76 } 77 p_dev->priv = local; 78 79 return airo_config(p_dev); 80} /* airo_attach */ 81 82static void airo_detach(struct pcmcia_device *link) 83{ 84 dev_dbg(&link->dev, "airo_detach\n"); 85 86 airo_release(link); 87 88 if (((local_info_t *)link->priv)->eth_dev) { 89 stop_airo_card(((local_info_t *)link->priv)->eth_dev, 0); 90 } 91 ((local_info_t *)link->priv)->eth_dev = NULL; 92 93 kfree(link->priv); 94} /* airo_detach */ 95 96static int airo_cs_config_check(struct pcmcia_device *p_dev, void *priv_data) 97{ 98 if (p_dev->config_index == 0) 99 return -EINVAL; 100 101 return pcmcia_request_io(p_dev); 102} 103 104 105static int airo_config(struct pcmcia_device *link) 106{ 107 local_info_t *dev; 108 int ret; 109 110 dev = link->priv; 111 112 dev_dbg(&link->dev, "airo_config\n"); 113 114 link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_VPP | 115 CONF_AUTO_AUDIO | CONF_AUTO_SET_IO; 116 117 ret = pcmcia_loop_config(link, airo_cs_config_check, NULL); 118 if (ret) 119 goto failed; 120 121 if (!link->irq) 122 goto failed; 123 124 ret = pcmcia_enable_device(link); 125 if (ret) 126 goto failed; 127 ((local_info_t *)link->priv)->eth_dev = 128 init_airo_card(link->irq, 129 link->resource[0]->start, 1, &link->dev); 130 if (!((local_info_t *)link->priv)->eth_dev) 131 goto failed; 132 133 return 0; 134 135 failed: 136 airo_release(link); 137 return -ENODEV; 138} /* airo_config */ 139 140static void airo_release(struct pcmcia_device *link) 141{ 142 dev_dbg(&link->dev, "airo_release\n"); 143 pcmcia_disable_device(link); 144} 145 146static int airo_suspend(struct pcmcia_device *link) 147{ 148 local_info_t *local = link->priv; 149 150 netif_device_detach(local->eth_dev); 151 152 return 0; 153} 154 155static int airo_resume(struct pcmcia_device *link) 156{ 157 local_info_t *local = link->priv; 158 159 if (link->open) { 160 reset_airo_card(local->eth_dev); 161 netif_device_attach(local->eth_dev); 162 } 163 164 return 0; 165} 166 167static const struct pcmcia_device_id airo_ids[] = { 168 PCMCIA_DEVICE_MANF_CARD(0x015f, 0x000a), 169 PCMCIA_DEVICE_MANF_CARD(0x015f, 0x0005), 170 PCMCIA_DEVICE_MANF_CARD(0x015f, 0x0007), 171 PCMCIA_DEVICE_MANF_CARD(0x0105, 0x0007), 172 PCMCIA_DEVICE_NULL, 173}; 174MODULE_DEVICE_TABLE(pcmcia, airo_ids); 175 176static struct pcmcia_driver airo_driver = { 177 .owner = THIS_MODULE, 178 .name = "airo_cs", 179 .probe = airo_probe, 180 .remove = airo_detach, 181 .id_table = airo_ids, 182 .suspend = airo_suspend, 183 .resume = airo_resume, 184}; 185 186static int __init airo_cs_init(void) 187{ 188 return pcmcia_register_driver(&airo_driver); 189} 190 191static void __exit airo_cs_cleanup(void) 192{ 193 pcmcia_unregister_driver(&airo_driver); 194} 195 196/* 197 This program is free software; you can redistribute it and/or 198 modify it under the terms of the GNU General Public License 199 as published by the Free Software Foundation; either version 2 200 of the License, or (at your option) any later version. 201 202 This program is distributed in the hope that it will be useful, 203 but WITHOUT ANY WARRANTY; without even the implied warranty of 204 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 205 GNU General Public License for more details. 206 207 In addition: 208 209 Redistribution and use in source and binary forms, with or without 210 modification, are permitted provided that the following conditions 211 are met: 212 213 1. Redistributions of source code must retain the above copyright 214 notice, this list of conditions and the following disclaimer. 215 2. Redistributions in binary form must reproduce the above copyright 216 notice, this list of conditions and the following disclaimer in the 217 documentation and/or other materials provided with the distribution. 218 3. The name of the author may not be used to endorse or promote 219 products derived from this software without specific prior written 220 permission. 221 222 THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 223 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 224 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 225 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 226 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 227 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 228 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 229 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 230 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 231 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 232 POSSIBILITY OF SUCH DAMAGE. 233*/ 234 235module_init(airo_cs_init); 236module_exit(airo_cs_cleanup);