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