Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * ds.c -- 16-bit PCMCIA core support |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License version 2 as |
| 6 | * published by the Free Software Foundation. |
| 7 | * |
| 8 | * The initial developer of the original code is David A. Hinds |
| 9 | * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds |
| 10 | * are Copyright (C) 1999 David A. Hinds. All Rights Reserved. |
| 11 | * |
| 12 | * (C) 1999 David A. Hinds |
| 13 | * (C) 2003 - 2004 Dominik Brodowski |
| 14 | */ |
| 15 | |
| 16 | #include <linux/config.h> |
| 17 | #include <linux/module.h> |
| 18 | #include <linux/moduleparam.h> |
| 19 | #include <linux/init.h> |
| 20 | #include <linux/kernel.h> |
| 21 | #include <linux/major.h> |
| 22 | #include <linux/string.h> |
| 23 | #include <linux/errno.h> |
| 24 | #include <linux/slab.h> |
| 25 | #include <linux/mm.h> |
| 26 | #include <linux/fcntl.h> |
| 27 | #include <linux/sched.h> |
| 28 | #include <linux/smp_lock.h> |
| 29 | #include <linux/timer.h> |
| 30 | #include <linux/ioctl.h> |
| 31 | #include <linux/proc_fs.h> |
| 32 | #include <linux/poll.h> |
| 33 | #include <linux/pci.h> |
| 34 | #include <linux/list.h> |
| 35 | #include <linux/delay.h> |
| 36 | #include <linux/kref.h> |
| 37 | #include <linux/workqueue.h> |
Dominik Brodowski | 840c2ac | 2005-06-27 16:28:04 -0700 | [diff] [blame] | 38 | #include <linux/crc32.h> |
Dominik Brodowski | daa9517 | 2005-06-27 16:28:14 -0700 | [diff] [blame] | 39 | #include <linux/firmware.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 40 | |
| 41 | #include <asm/atomic.h> |
| 42 | |
| 43 | #define IN_CARD_SERVICES |
| 44 | #include <pcmcia/version.h> |
| 45 | #include <pcmcia/cs_types.h> |
| 46 | #include <pcmcia/cs.h> |
| 47 | #include <pcmcia/bulkmem.h> |
| 48 | #include <pcmcia/cistpl.h> |
| 49 | #include <pcmcia/ds.h> |
| 50 | #include <pcmcia/ss.h> |
| 51 | |
| 52 | #include "cs_internal.h" |
Dominik Brodowski | e7a480d | 2005-06-27 16:28:47 -0700 | [diff] [blame] | 53 | #include "ds_internal.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | |
| 55 | /*====================================================================*/ |
| 56 | |
| 57 | /* Module parameters */ |
| 58 | |
| 59 | MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>"); |
| 60 | MODULE_DESCRIPTION("PCMCIA Driver Services"); |
| 61 | MODULE_LICENSE("GPL"); |
| 62 | |
| 63 | #ifdef DEBUG |
Dominik Brodowski | e7a480d | 2005-06-27 16:28:47 -0700 | [diff] [blame] | 64 | int ds_pc_debug; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | |
| 66 | module_param_named(pc_debug, ds_pc_debug, int, 0644); |
| 67 | |
| 68 | #define ds_dbg(lvl, fmt, arg...) do { \ |
| 69 | if (ds_pc_debug > (lvl)) \ |
| 70 | printk(KERN_DEBUG "ds: " fmt , ## arg); \ |
| 71 | } while (0) |
| 72 | #else |
| 73 | #define ds_dbg(lvl, fmt, arg...) do { } while (0) |
| 74 | #endif |
| 75 | |
Dominik Brodowski | e7a480d | 2005-06-27 16:28:47 -0700 | [diff] [blame] | 76 | spinlock_t pcmcia_dev_list_lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 77 | |
Dominik Brodowski | dc10949 | 2005-06-27 16:28:50 -0700 | [diff] [blame^] | 78 | static int unbind_request(struct pcmcia_socket *s); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 79 | |
| 80 | /*====================================================================*/ |
| 81 | |
| 82 | /* code which was in cs.c before */ |
| 83 | |
| 84 | /* String tables for error messages */ |
| 85 | |
| 86 | typedef struct lookup_t { |
| 87 | int key; |
| 88 | char *msg; |
| 89 | } lookup_t; |
| 90 | |
| 91 | static const lookup_t error_table[] = { |
| 92 | { CS_SUCCESS, "Operation succeeded" }, |
| 93 | { CS_BAD_ADAPTER, "Bad adapter" }, |
| 94 | { CS_BAD_ATTRIBUTE, "Bad attribute", }, |
| 95 | { CS_BAD_BASE, "Bad base address" }, |
| 96 | { CS_BAD_EDC, "Bad EDC" }, |
| 97 | { CS_BAD_IRQ, "Bad IRQ" }, |
| 98 | { CS_BAD_OFFSET, "Bad offset" }, |
| 99 | { CS_BAD_PAGE, "Bad page number" }, |
| 100 | { CS_READ_FAILURE, "Read failure" }, |
| 101 | { CS_BAD_SIZE, "Bad size" }, |
| 102 | { CS_BAD_SOCKET, "Bad socket" }, |
| 103 | { CS_BAD_TYPE, "Bad type" }, |
| 104 | { CS_BAD_VCC, "Bad Vcc" }, |
| 105 | { CS_BAD_VPP, "Bad Vpp" }, |
| 106 | { CS_BAD_WINDOW, "Bad window" }, |
| 107 | { CS_WRITE_FAILURE, "Write failure" }, |
| 108 | { CS_NO_CARD, "No card present" }, |
| 109 | { CS_UNSUPPORTED_FUNCTION, "Usupported function" }, |
| 110 | { CS_UNSUPPORTED_MODE, "Unsupported mode" }, |
| 111 | { CS_BAD_SPEED, "Bad speed" }, |
| 112 | { CS_BUSY, "Resource busy" }, |
| 113 | { CS_GENERAL_FAILURE, "General failure" }, |
| 114 | { CS_WRITE_PROTECTED, "Write protected" }, |
| 115 | { CS_BAD_ARG_LENGTH, "Bad argument length" }, |
| 116 | { CS_BAD_ARGS, "Bad arguments" }, |
| 117 | { CS_CONFIGURATION_LOCKED, "Configuration locked" }, |
| 118 | { CS_IN_USE, "Resource in use" }, |
| 119 | { CS_NO_MORE_ITEMS, "No more items" }, |
| 120 | { CS_OUT_OF_RESOURCE, "Out of resource" }, |
| 121 | { CS_BAD_HANDLE, "Bad handle" }, |
| 122 | { CS_BAD_TUPLE, "Bad CIS tuple" } |
| 123 | }; |
| 124 | |
| 125 | |
| 126 | static const lookup_t service_table[] = { |
| 127 | { AccessConfigurationRegister, "AccessConfigurationRegister" }, |
| 128 | { AddSocketServices, "AddSocketServices" }, |
| 129 | { AdjustResourceInfo, "AdjustResourceInfo" }, |
| 130 | { CheckEraseQueue, "CheckEraseQueue" }, |
| 131 | { CloseMemory, "CloseMemory" }, |
| 132 | { DeregisterClient, "DeregisterClient" }, |
| 133 | { DeregisterEraseQueue, "DeregisterEraseQueue" }, |
| 134 | { GetCardServicesInfo, "GetCardServicesInfo" }, |
| 135 | { GetClientInfo, "GetClientInfo" }, |
| 136 | { GetConfigurationInfo, "GetConfigurationInfo" }, |
| 137 | { GetEventMask, "GetEventMask" }, |
| 138 | { GetFirstClient, "GetFirstClient" }, |
| 139 | { GetFirstRegion, "GetFirstRegion" }, |
| 140 | { GetFirstTuple, "GetFirstTuple" }, |
| 141 | { GetNextClient, "GetNextClient" }, |
| 142 | { GetNextRegion, "GetNextRegion" }, |
| 143 | { GetNextTuple, "GetNextTuple" }, |
| 144 | { GetStatus, "GetStatus" }, |
| 145 | { GetTupleData, "GetTupleData" }, |
| 146 | { MapMemPage, "MapMemPage" }, |
| 147 | { ModifyConfiguration, "ModifyConfiguration" }, |
| 148 | { ModifyWindow, "ModifyWindow" }, |
| 149 | { OpenMemory, "OpenMemory" }, |
| 150 | { ParseTuple, "ParseTuple" }, |
| 151 | { ReadMemory, "ReadMemory" }, |
| 152 | { RegisterClient, "RegisterClient" }, |
| 153 | { RegisterEraseQueue, "RegisterEraseQueue" }, |
| 154 | { RegisterMTD, "RegisterMTD" }, |
| 155 | { ReleaseConfiguration, "ReleaseConfiguration" }, |
| 156 | { ReleaseIO, "ReleaseIO" }, |
| 157 | { ReleaseIRQ, "ReleaseIRQ" }, |
| 158 | { ReleaseWindow, "ReleaseWindow" }, |
| 159 | { RequestConfiguration, "RequestConfiguration" }, |
| 160 | { RequestIO, "RequestIO" }, |
| 161 | { RequestIRQ, "RequestIRQ" }, |
| 162 | { RequestSocketMask, "RequestSocketMask" }, |
| 163 | { RequestWindow, "RequestWindow" }, |
| 164 | { ResetCard, "ResetCard" }, |
| 165 | { SetEventMask, "SetEventMask" }, |
| 166 | { ValidateCIS, "ValidateCIS" }, |
| 167 | { WriteMemory, "WriteMemory" }, |
| 168 | { BindDevice, "BindDevice" }, |
| 169 | { BindMTD, "BindMTD" }, |
| 170 | { ReportError, "ReportError" }, |
| 171 | { SuspendCard, "SuspendCard" }, |
| 172 | { ResumeCard, "ResumeCard" }, |
| 173 | { EjectCard, "EjectCard" }, |
| 174 | { InsertCard, "InsertCard" }, |
| 175 | { ReplaceCIS, "ReplaceCIS" } |
| 176 | }; |
| 177 | |
| 178 | |
Dominik Brodowski | e94e15f | 2005-06-27 16:28:15 -0700 | [diff] [blame] | 179 | static int pcmcia_report_error(client_handle_t handle, error_info_t *err) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 180 | { |
| 181 | int i; |
| 182 | char *serv; |
| 183 | |
| 184 | if (CHECK_HANDLE(handle)) |
| 185 | printk(KERN_NOTICE); |
| 186 | else { |
| 187 | struct pcmcia_device *p_dev = handle_to_pdev(handle); |
| 188 | printk(KERN_NOTICE "%s: ", p_dev->dev.bus_id); |
| 189 | } |
| 190 | |
| 191 | for (i = 0; i < ARRAY_SIZE(service_table); i++) |
| 192 | if (service_table[i].key == err->func) |
| 193 | break; |
| 194 | if (i < ARRAY_SIZE(service_table)) |
| 195 | serv = service_table[i].msg; |
| 196 | else |
| 197 | serv = "Unknown service number"; |
| 198 | |
| 199 | for (i = 0; i < ARRAY_SIZE(error_table); i++) |
| 200 | if (error_table[i].key == err->retcode) |
| 201 | break; |
| 202 | if (i < ARRAY_SIZE(error_table)) |
| 203 | printk("%s: %s\n", serv, error_table[i].msg); |
| 204 | else |
| 205 | printk("%s: Unknown error code %#x\n", serv, err->retcode); |
| 206 | |
| 207 | return CS_SUCCESS; |
| 208 | } /* report_error */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 209 | |
| 210 | /* end of code which was in cs.c before */ |
| 211 | |
| 212 | /*======================================================================*/ |
| 213 | |
| 214 | void cs_error(client_handle_t handle, int func, int ret) |
| 215 | { |
| 216 | error_info_t err = { func, ret }; |
| 217 | pcmcia_report_error(handle, &err); |
| 218 | } |
| 219 | EXPORT_SYMBOL(cs_error); |
| 220 | |
Dominik Brodowski | 23a83bf | 2005-06-27 16:28:07 -0700 | [diff] [blame] | 221 | |
| 222 | static void pcmcia_check_driver(struct pcmcia_driver *p_drv) |
| 223 | { |
| 224 | struct pcmcia_device_id *did = p_drv->id_table; |
| 225 | unsigned int i; |
| 226 | u32 hash; |
| 227 | |
| 228 | while (did && did->match_flags) { |
| 229 | for (i=0; i<4; i++) { |
| 230 | if (!did->prod_id[i]) |
| 231 | continue; |
| 232 | |
| 233 | hash = crc32(0, did->prod_id[i], strlen(did->prod_id[i])); |
| 234 | if (hash == did->prod_id_hash[i]) |
| 235 | continue; |
| 236 | |
| 237 | printk(KERN_DEBUG "pcmcia: %s: invalid hash for " |
| 238 | "product string \"%s\": is 0x%x, should " |
| 239 | "be 0x%x\n", p_drv->drv.name, did->prod_id[i], |
| 240 | did->prod_id_hash[i], hash); |
Dominik Brodowski | 5085cb2 | 2005-06-27 16:28:45 -0700 | [diff] [blame] | 241 | printk(KERN_DEBUG "pcmcia: see " |
| 242 | "Documentation/pcmcia/devicetable.txt for " |
| 243 | "details\n"); |
Dominik Brodowski | 23a83bf | 2005-06-27 16:28:07 -0700 | [diff] [blame] | 244 | } |
| 245 | did++; |
| 246 | } |
| 247 | |
| 248 | return; |
| 249 | } |
| 250 | |
Dominik Brodowski | daa9517 | 2005-06-27 16:28:14 -0700 | [diff] [blame] | 251 | |
| 252 | #ifdef CONFIG_PCMCIA_LOAD_CIS |
| 253 | |
| 254 | /** |
| 255 | * pcmcia_load_firmware - load CIS from userspace if device-provided is broken |
| 256 | * @dev - the pcmcia device which needs a CIS override |
| 257 | * @filename - requested filename in /lib/firmware/cis/ |
| 258 | * |
| 259 | * This uses the in-kernel firmware loading mechanism to use a "fake CIS" if |
| 260 | * the one provided by the card is broken. The firmware files reside in |
| 261 | * /lib/firmware/cis/ in userspace. |
| 262 | */ |
| 263 | static int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) |
| 264 | { |
| 265 | struct pcmcia_socket *s = dev->socket; |
| 266 | const struct firmware *fw; |
| 267 | char path[20]; |
| 268 | int ret=-ENOMEM; |
| 269 | cisdump_t *cis; |
| 270 | |
| 271 | if (!filename) |
| 272 | return -EINVAL; |
| 273 | |
| 274 | ds_dbg(1, "trying to load firmware %s\n", filename); |
| 275 | |
| 276 | if (strlen(filename) > 14) |
| 277 | return -EINVAL; |
| 278 | |
| 279 | snprintf(path, 20, "%s", filename); |
| 280 | |
| 281 | if (request_firmware(&fw, path, &dev->dev) == 0) { |
| 282 | if (fw->size >= CISTPL_MAX_CIS_SIZE) |
| 283 | goto release; |
| 284 | |
| 285 | cis = kmalloc(sizeof(cisdump_t), GFP_KERNEL); |
| 286 | if (!cis) |
| 287 | goto release; |
| 288 | |
| 289 | memset(cis, 0, sizeof(cisdump_t)); |
| 290 | |
| 291 | cis->Length = fw->size + 1; |
| 292 | memcpy(cis->Data, fw->data, fw->size); |
| 293 | |
| 294 | if (!pcmcia_replace_cis(s, cis)) |
| 295 | ret = 0; |
| 296 | } |
| 297 | release: |
| 298 | release_firmware(fw); |
| 299 | |
| 300 | return (ret); |
| 301 | } |
| 302 | |
| 303 | #else /* !CONFIG_PCMCIA_LOAD_CIS */ |
| 304 | |
| 305 | static inline int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) |
| 306 | { |
| 307 | return -ENODEV; |
| 308 | } |
| 309 | |
| 310 | #endif |
| 311 | |
| 312 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 313 | /*======================================================================*/ |
| 314 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 315 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 316 | /** |
| 317 | * pcmcia_register_driver - register a PCMCIA driver with the bus core |
| 318 | * |
| 319 | * Registers a PCMCIA driver with the PCMCIA bus core. |
| 320 | */ |
| 321 | static int pcmcia_device_probe(struct device *dev); |
| 322 | static int pcmcia_device_remove(struct device * dev); |
| 323 | |
| 324 | int pcmcia_register_driver(struct pcmcia_driver *driver) |
| 325 | { |
| 326 | if (!driver) |
| 327 | return -EINVAL; |
| 328 | |
Dominik Brodowski | 23a83bf | 2005-06-27 16:28:07 -0700 | [diff] [blame] | 329 | pcmcia_check_driver(driver); |
| 330 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 331 | /* initialize common fields */ |
| 332 | driver->drv.bus = &pcmcia_bus_type; |
| 333 | driver->drv.owner = driver->owner; |
| 334 | driver->drv.probe = pcmcia_device_probe; |
| 335 | driver->drv.remove = pcmcia_device_remove; |
| 336 | |
| 337 | return driver_register(&driver->drv); |
| 338 | } |
| 339 | EXPORT_SYMBOL(pcmcia_register_driver); |
| 340 | |
| 341 | /** |
| 342 | * pcmcia_unregister_driver - unregister a PCMCIA driver with the bus core |
| 343 | */ |
| 344 | void pcmcia_unregister_driver(struct pcmcia_driver *driver) |
| 345 | { |
| 346 | driver_unregister(&driver->drv); |
| 347 | } |
| 348 | EXPORT_SYMBOL(pcmcia_unregister_driver); |
| 349 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 350 | |
| 351 | /* pcmcia_device handling */ |
| 352 | |
Dominik Brodowski | e7a480d | 2005-06-27 16:28:47 -0700 | [diff] [blame] | 353 | struct pcmcia_device * pcmcia_get_dev(struct pcmcia_device *p_dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 354 | { |
| 355 | struct device *tmp_dev; |
| 356 | tmp_dev = get_device(&p_dev->dev); |
| 357 | if (!tmp_dev) |
| 358 | return NULL; |
| 359 | return to_pcmcia_dev(tmp_dev); |
| 360 | } |
| 361 | |
Dominik Brodowski | e7a480d | 2005-06-27 16:28:47 -0700 | [diff] [blame] | 362 | void pcmcia_put_dev(struct pcmcia_device *p_dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 363 | { |
| 364 | if (p_dev) |
| 365 | put_device(&p_dev->dev); |
| 366 | } |
| 367 | |
| 368 | static void pcmcia_release_dev(struct device *dev) |
| 369 | { |
| 370 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); |
| 371 | ds_dbg(1, "releasing dev %p\n", p_dev); |
Dominik Brodowski | dc10949 | 2005-06-27 16:28:50 -0700 | [diff] [blame^] | 372 | pcmcia_put_socket(p_dev->socket); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 373 | kfree(p_dev); |
| 374 | } |
| 375 | |
| 376 | |
| 377 | static int pcmcia_device_probe(struct device * dev) |
| 378 | { |
| 379 | struct pcmcia_device *p_dev; |
| 380 | struct pcmcia_driver *p_drv; |
| 381 | int ret = 0; |
| 382 | |
| 383 | dev = get_device(dev); |
| 384 | if (!dev) |
| 385 | return -ENODEV; |
| 386 | |
| 387 | p_dev = to_pcmcia_dev(dev); |
| 388 | p_drv = to_pcmcia_drv(dev->driver); |
| 389 | |
| 390 | if (!try_module_get(p_drv->owner)) { |
| 391 | ret = -EINVAL; |
| 392 | goto put_dev; |
| 393 | } |
| 394 | |
| 395 | if (p_drv->attach) { |
| 396 | p_dev->instance = p_drv->attach(); |
| 397 | if ((!p_dev->instance) || (p_dev->client.state & CLIENT_UNBOUND)) { |
| 398 | printk(KERN_NOTICE "ds: unable to create instance " |
| 399 | "of '%s'!\n", p_drv->drv.name); |
| 400 | ret = -EINVAL; |
| 401 | } |
| 402 | } |
| 403 | |
| 404 | if (ret) |
| 405 | module_put(p_drv->owner); |
| 406 | put_dev: |
| 407 | if ((ret) || !(p_drv->attach)) |
| 408 | put_device(dev); |
| 409 | return (ret); |
| 410 | } |
| 411 | |
| 412 | |
| 413 | static int pcmcia_device_remove(struct device * dev) |
| 414 | { |
| 415 | struct pcmcia_device *p_dev; |
| 416 | struct pcmcia_driver *p_drv; |
| 417 | |
| 418 | /* detach the "instance" */ |
| 419 | p_dev = to_pcmcia_dev(dev); |
| 420 | p_drv = to_pcmcia_drv(dev->driver); |
| 421 | |
| 422 | if (p_drv) { |
| 423 | if ((p_drv->detach) && (p_dev->instance)) { |
| 424 | p_drv->detach(p_dev->instance); |
| 425 | /* from pcmcia_probe_device */ |
| 426 | put_device(&p_dev->dev); |
| 427 | } |
| 428 | module_put(p_drv->owner); |
| 429 | } |
| 430 | |
| 431 | return 0; |
| 432 | } |
| 433 | |
| 434 | |
| 435 | |
| 436 | /* |
| 437 | * pcmcia_device_query -- determine information about a pcmcia device |
| 438 | */ |
| 439 | static int pcmcia_device_query(struct pcmcia_device *p_dev) |
| 440 | { |
| 441 | cistpl_manfid_t manf_id; |
| 442 | cistpl_funcid_t func_id; |
| 443 | cistpl_vers_1_t vers1; |
| 444 | unsigned int i; |
| 445 | |
| 446 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
| 447 | CISTPL_MANFID, &manf_id)) { |
| 448 | p_dev->manf_id = manf_id.manf; |
| 449 | p_dev->card_id = manf_id.card; |
| 450 | p_dev->has_manf_id = 1; |
| 451 | p_dev->has_card_id = 1; |
| 452 | } |
| 453 | |
| 454 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
| 455 | CISTPL_FUNCID, &func_id)) { |
| 456 | p_dev->func_id = func_id.func; |
| 457 | p_dev->has_func_id = 1; |
| 458 | } else { |
| 459 | /* rule of thumb: cards with no FUNCID, but with |
| 460 | * common memory device geometry information, are |
| 461 | * probably memory cards (from pcmcia-cs) */ |
| 462 | cistpl_device_geo_t devgeo; |
| 463 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, |
| 464 | CISTPL_DEVICE_GEO, &devgeo)) { |
| 465 | ds_dbg(0, "mem device geometry probably means " |
| 466 | "FUNCID_MEMORY\n"); |
| 467 | p_dev->func_id = CISTPL_FUNCID_MEMORY; |
| 468 | p_dev->has_func_id = 1; |
| 469 | } |
| 470 | } |
| 471 | |
| 472 | if (!pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_VERS_1, |
| 473 | &vers1)) { |
| 474 | for (i=0; i < vers1.ns; i++) { |
| 475 | char *tmp; |
| 476 | unsigned int length; |
| 477 | |
| 478 | tmp = vers1.str + vers1.ofs[i]; |
| 479 | |
| 480 | length = strlen(tmp) + 1; |
| 481 | if ((length < 3) || (length > 255)) |
| 482 | continue; |
| 483 | |
| 484 | p_dev->prod_id[i] = kmalloc(sizeof(char) * length, |
| 485 | GFP_KERNEL); |
| 486 | if (!p_dev->prod_id[i]) |
| 487 | continue; |
| 488 | |
| 489 | p_dev->prod_id[i] = strncpy(p_dev->prod_id[i], |
| 490 | tmp, length); |
| 491 | } |
| 492 | } |
| 493 | |
| 494 | return 0; |
| 495 | } |
| 496 | |
| 497 | |
| 498 | /* device_add_lock is needed to avoid double registration by cardmgr and kernel. |
| 499 | * Serializes pcmcia_device_add; will most likely be removed in future. |
| 500 | * |
| 501 | * While it has the caveat that adding new PCMCIA devices inside(!) device_register() |
| 502 | * won't work, this doesn't matter much at the moment: the driver core doesn't |
| 503 | * support it either. |
| 504 | */ |
| 505 | static DECLARE_MUTEX(device_add_lock); |
| 506 | |
Dominik Brodowski | dc10949 | 2005-06-27 16:28:50 -0700 | [diff] [blame^] | 507 | struct pcmcia_device * pcmcia_device_add(struct pcmcia_socket *s, unsigned int function) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 508 | { |
| 509 | struct pcmcia_device *p_dev; |
| 510 | unsigned long flags; |
| 511 | |
Dominik Brodowski | dc10949 | 2005-06-27 16:28:50 -0700 | [diff] [blame^] | 512 | s = pcmcia_get_socket(s); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 513 | if (!s) |
| 514 | return NULL; |
| 515 | |
| 516 | down(&device_add_lock); |
| 517 | |
Dominik Brodowski | 1ad275e | 2005-06-27 16:28:06 -0700 | [diff] [blame] | 518 | /* max of 2 devices per card */ |
| 519 | if (s->device_count == 2) |
| 520 | goto err_put; |
| 521 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 522 | p_dev = kmalloc(sizeof(struct pcmcia_device), GFP_KERNEL); |
| 523 | if (!p_dev) |
| 524 | goto err_put; |
| 525 | memset(p_dev, 0, sizeof(struct pcmcia_device)); |
| 526 | |
Dominik Brodowski | dc10949 | 2005-06-27 16:28:50 -0700 | [diff] [blame^] | 527 | p_dev->socket = s; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 528 | p_dev->device_no = (s->device_count++); |
| 529 | p_dev->func = function; |
| 530 | |
| 531 | p_dev->dev.bus = &pcmcia_bus_type; |
Dominik Brodowski | dc10949 | 2005-06-27 16:28:50 -0700 | [diff] [blame^] | 532 | p_dev->dev.parent = s->dev.dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 533 | p_dev->dev.release = pcmcia_release_dev; |
| 534 | sprintf (p_dev->dev.bus_id, "%d.%d", p_dev->socket->sock, p_dev->device_no); |
| 535 | |
| 536 | /* compat */ |
| 537 | p_dev->client.client_magic = CLIENT_MAGIC; |
Dominik Brodowski | dc10949 | 2005-06-27 16:28:50 -0700 | [diff] [blame^] | 538 | p_dev->client.Socket = s; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 539 | p_dev->client.Function = function; |
| 540 | p_dev->client.state = CLIENT_UNBOUND; |
| 541 | |
| 542 | /* Add to the list in pcmcia_bus_socket */ |
| 543 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); |
| 544 | list_add_tail(&p_dev->socket_device_list, &s->devices_list); |
| 545 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); |
| 546 | |
Dominik Brodowski | 1ad275e | 2005-06-27 16:28:06 -0700 | [diff] [blame] | 547 | pcmcia_device_query(p_dev); |
| 548 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 549 | if (device_register(&p_dev->dev)) { |
| 550 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); |
| 551 | list_del(&p_dev->socket_device_list); |
| 552 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); |
| 553 | |
| 554 | goto err_free; |
| 555 | } |
| 556 | |
| 557 | up(&device_add_lock); |
| 558 | |
| 559 | return p_dev; |
| 560 | |
| 561 | err_free: |
| 562 | kfree(p_dev); |
| 563 | s->device_count--; |
| 564 | err_put: |
| 565 | up(&device_add_lock); |
Dominik Brodowski | dc10949 | 2005-06-27 16:28:50 -0700 | [diff] [blame^] | 566 | pcmcia_put_socket(s); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 567 | |
| 568 | return NULL; |
| 569 | } |
| 570 | |
| 571 | |
| 572 | static int pcmcia_card_add(struct pcmcia_socket *s) |
| 573 | { |
| 574 | cisinfo_t cisinfo; |
| 575 | cistpl_longlink_mfc_t mfc; |
| 576 | unsigned int no_funcs, i; |
| 577 | int ret = 0; |
| 578 | |
| 579 | if (!(s->resource_setup_done)) |
| 580 | return -EAGAIN; /* try again, but later... */ |
| 581 | |
| 582 | pcmcia_validate_mem(s); |
| 583 | ret = pccard_validate_cis(s, BIND_FN_ALL, &cisinfo); |
| 584 | if (ret || !cisinfo.Chains) { |
| 585 | ds_dbg(0, "invalid CIS or invalid resources\n"); |
| 586 | return -ENODEV; |
| 587 | } |
| 588 | |
| 589 | if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc)) |
| 590 | no_funcs = mfc.nfn; |
| 591 | else |
| 592 | no_funcs = 1; |
| 593 | |
| 594 | /* this doesn't handle multifunction devices on one pcmcia function |
| 595 | * yet. */ |
| 596 | for (i=0; i < no_funcs; i++) |
Dominik Brodowski | dc10949 | 2005-06-27 16:28:50 -0700 | [diff] [blame^] | 597 | pcmcia_device_add(s, i); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 598 | |
| 599 | return (ret); |
| 600 | } |
| 601 | |
| 602 | |
Dominik Brodowski | 1ad275e | 2005-06-27 16:28:06 -0700 | [diff] [blame] | 603 | static void pcmcia_delayed_add_pseudo_device(void *data) |
| 604 | { |
Dominik Brodowski | dc10949 | 2005-06-27 16:28:50 -0700 | [diff] [blame^] | 605 | struct pcmcia_socket *s = data; |
Dominik Brodowski | 1ad275e | 2005-06-27 16:28:06 -0700 | [diff] [blame] | 606 | pcmcia_device_add(s, 0); |
Dominik Brodowski | b5e4391 | 2005-06-27 16:28:50 -0700 | [diff] [blame] | 607 | s->pcmcia_state.device_add_pending = 0; |
Dominik Brodowski | 1ad275e | 2005-06-27 16:28:06 -0700 | [diff] [blame] | 608 | } |
| 609 | |
Dominik Brodowski | dc10949 | 2005-06-27 16:28:50 -0700 | [diff] [blame^] | 610 | static inline void pcmcia_add_pseudo_device(struct pcmcia_socket *s) |
Dominik Brodowski | 1ad275e | 2005-06-27 16:28:06 -0700 | [diff] [blame] | 611 | { |
Dominik Brodowski | b5e4391 | 2005-06-27 16:28:50 -0700 | [diff] [blame] | 612 | if (!s->pcmcia_state.device_add_pending) { |
Dominik Brodowski | 1ad275e | 2005-06-27 16:28:06 -0700 | [diff] [blame] | 613 | schedule_work(&s->device_add); |
Dominik Brodowski | b5e4391 | 2005-06-27 16:28:50 -0700 | [diff] [blame] | 614 | s->pcmcia_state.device_add_pending = 1; |
Dominik Brodowski | 1ad275e | 2005-06-27 16:28:06 -0700 | [diff] [blame] | 615 | } |
| 616 | return; |
| 617 | } |
| 618 | |
Dominik Brodowski | e2f0b53 | 2005-06-27 16:28:17 -0700 | [diff] [blame] | 619 | static int pcmcia_requery(struct device *dev, void * _data) |
Dominik Brodowski | ff1fa9e | 2005-06-27 16:28:09 -0700 | [diff] [blame] | 620 | { |
Dominik Brodowski | e2f0b53 | 2005-06-27 16:28:17 -0700 | [diff] [blame] | 621 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); |
| 622 | if (!p_dev->dev.driver) |
| 623 | pcmcia_device_query(p_dev); |
| 624 | |
| 625 | return 0; |
| 626 | } |
| 627 | |
| 628 | static void pcmcia_bus_rescan(struct pcmcia_socket *skt) |
| 629 | { |
| 630 | int no_devices=0; |
| 631 | unsigned long flags; |
| 632 | |
Dominik Brodowski | ff1fa9e | 2005-06-27 16:28:09 -0700 | [diff] [blame] | 633 | /* must be called with skt_sem held */ |
Dominik Brodowski | e2f0b53 | 2005-06-27 16:28:17 -0700 | [diff] [blame] | 634 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); |
Dominik Brodowski | dc10949 | 2005-06-27 16:28:50 -0700 | [diff] [blame^] | 635 | if (list_empty(&skt->devices_list)) |
Dominik Brodowski | e2f0b53 | 2005-06-27 16:28:17 -0700 | [diff] [blame] | 636 | no_devices=1; |
| 637 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); |
| 638 | |
| 639 | /* if no devices were added for this socket yet because of |
| 640 | * missing resource information or other trouble, we need to |
| 641 | * do this now. */ |
| 642 | if (no_devices) { |
| 643 | int ret = pcmcia_card_add(skt); |
| 644 | if (ret) |
| 645 | return; |
| 646 | } |
| 647 | |
| 648 | /* some device information might have changed because of a CIS |
| 649 | * update or because we can finally read it correctly... so |
| 650 | * determine it again, overwriting old values if necessary. */ |
| 651 | bus_for_each_dev(&pcmcia_bus_type, NULL, NULL, pcmcia_requery); |
| 652 | |
| 653 | /* we re-scan all devices, not just the ones connected to this |
| 654 | * socket. This does not matter, though. */ |
Dominik Brodowski | a5b5577 | 2005-06-27 16:28:10 -0700 | [diff] [blame] | 655 | bus_rescan_devices(&pcmcia_bus_type); |
Dominik Brodowski | ff1fa9e | 2005-06-27 16:28:09 -0700 | [diff] [blame] | 656 | } |
Dominik Brodowski | 1ad275e | 2005-06-27 16:28:06 -0700 | [diff] [blame] | 657 | |
| 658 | static inline int pcmcia_devmatch(struct pcmcia_device *dev, |
| 659 | struct pcmcia_device_id *did) |
| 660 | { |
| 661 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_MANF_ID) { |
| 662 | if ((!dev->has_manf_id) || (dev->manf_id != did->manf_id)) |
| 663 | return 0; |
| 664 | } |
| 665 | |
| 666 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_CARD_ID) { |
| 667 | if ((!dev->has_card_id) || (dev->card_id != did->card_id)) |
| 668 | return 0; |
| 669 | } |
| 670 | |
| 671 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNCTION) { |
| 672 | if (dev->func != did->function) |
| 673 | return 0; |
| 674 | } |
| 675 | |
| 676 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID1) { |
| 677 | if (!dev->prod_id[0]) |
| 678 | return 0; |
| 679 | if (strcmp(did->prod_id[0], dev->prod_id[0])) |
| 680 | return 0; |
| 681 | } |
| 682 | |
| 683 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID2) { |
| 684 | if (!dev->prod_id[1]) |
| 685 | return 0; |
| 686 | if (strcmp(did->prod_id[1], dev->prod_id[1])) |
| 687 | return 0; |
| 688 | } |
| 689 | |
| 690 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID3) { |
| 691 | if (!dev->prod_id[2]) |
| 692 | return 0; |
| 693 | if (strcmp(did->prod_id[2], dev->prod_id[2])) |
| 694 | return 0; |
| 695 | } |
| 696 | |
| 697 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_PROD_ID4) { |
| 698 | if (!dev->prod_id[3]) |
| 699 | return 0; |
| 700 | if (strcmp(did->prod_id[3], dev->prod_id[3])) |
| 701 | return 0; |
| 702 | } |
| 703 | |
| 704 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) { |
| 705 | /* handle pseudo multifunction devices: |
| 706 | * there are at most two pseudo multifunction devices. |
| 707 | * if we're matching against the first, schedule a |
| 708 | * call which will then check whether there are two |
| 709 | * pseudo devices, and if not, add the second one. |
| 710 | */ |
| 711 | if (dev->device_no == 0) |
Dominik Brodowski | dc10949 | 2005-06-27 16:28:50 -0700 | [diff] [blame^] | 712 | pcmcia_add_pseudo_device(dev->socket); |
Dominik Brodowski | 1ad275e | 2005-06-27 16:28:06 -0700 | [diff] [blame] | 713 | |
| 714 | if (dev->device_no != did->device_no) |
| 715 | return 0; |
| 716 | } |
| 717 | |
| 718 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID) { |
| 719 | if ((!dev->has_func_id) || (dev->func_id != did->func_id)) |
| 720 | return 0; |
| 721 | |
| 722 | /* if this is a pseudo-multi-function device, |
| 723 | * we need explicit matches */ |
| 724 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) |
| 725 | return 0; |
| 726 | if (dev->device_no) |
| 727 | return 0; |
| 728 | |
| 729 | /* also, FUNC_ID matching needs to be activated by userspace |
| 730 | * after it has re-checked that there is no possible module |
| 731 | * with a prod_id/manf_id/card_id match. |
| 732 | */ |
| 733 | if (!dev->allow_func_id_match) |
| 734 | return 0; |
| 735 | } |
| 736 | |
Dominik Brodowski | ea7b388 | 2005-06-27 16:28:07 -0700 | [diff] [blame] | 737 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_FAKE_CIS) { |
Dominik Brodowski | daa9517 | 2005-06-27 16:28:14 -0700 | [diff] [blame] | 738 | if (!dev->socket->fake_cis) |
| 739 | pcmcia_load_firmware(dev, did->cisfile); |
| 740 | |
| 741 | if (!dev->socket->fake_cis) |
Dominik Brodowski | ea7b388 | 2005-06-27 16:28:07 -0700 | [diff] [blame] | 742 | return 0; |
Dominik Brodowski | ea7b388 | 2005-06-27 16:28:07 -0700 | [diff] [blame] | 743 | } |
| 744 | |
Dominik Brodowski | f602ff7 | 2005-06-27 16:28:09 -0700 | [diff] [blame] | 745 | if (did->match_flags & PCMCIA_DEV_ID_MATCH_ANONYMOUS) { |
| 746 | int i; |
| 747 | for (i=0; i<4; i++) |
| 748 | if (dev->prod_id[i]) |
| 749 | return 0; |
| 750 | if (dev->has_manf_id || dev->has_card_id || dev->has_func_id) |
| 751 | return 0; |
| 752 | } |
| 753 | |
Dominik Brodowski | 1ad275e | 2005-06-27 16:28:06 -0700 | [diff] [blame] | 754 | dev->dev.driver_data = (void *) did; |
| 755 | |
| 756 | return 1; |
| 757 | } |
| 758 | |
| 759 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 760 | static int pcmcia_bus_match(struct device * dev, struct device_driver * drv) { |
| 761 | struct pcmcia_device * p_dev = to_pcmcia_dev(dev); |
| 762 | struct pcmcia_driver * p_drv = to_pcmcia_drv(drv); |
Dominik Brodowski | 1ad275e | 2005-06-27 16:28:06 -0700 | [diff] [blame] | 763 | struct pcmcia_device_id *did = p_drv->id_table; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 764 | |
| 765 | /* matching by cardmgr */ |
| 766 | if (p_dev->cardmgr == p_drv) |
| 767 | return 1; |
| 768 | |
Dominik Brodowski | 1ad275e | 2005-06-27 16:28:06 -0700 | [diff] [blame] | 769 | while (did && did->match_flags) { |
| 770 | if (pcmcia_devmatch(p_dev, did)) |
| 771 | return 1; |
| 772 | did++; |
| 773 | } |
| 774 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 775 | return 0; |
| 776 | } |
| 777 | |
Dominik Brodowski | 840c2ac | 2005-06-27 16:28:04 -0700 | [diff] [blame] | 778 | #ifdef CONFIG_HOTPLUG |
| 779 | |
| 780 | static int pcmcia_bus_hotplug(struct device *dev, char **envp, int num_envp, |
| 781 | char *buffer, int buffer_size) |
| 782 | { |
| 783 | struct pcmcia_device *p_dev; |
| 784 | int i, length = 0; |
| 785 | u32 hash[4] = { 0, 0, 0, 0}; |
| 786 | |
| 787 | if (!dev) |
| 788 | return -ENODEV; |
| 789 | |
| 790 | p_dev = to_pcmcia_dev(dev); |
| 791 | |
| 792 | /* calculate hashes */ |
| 793 | for (i=0; i<4; i++) { |
| 794 | if (!p_dev->prod_id[i]) |
| 795 | continue; |
| 796 | hash[i] = crc32(0, p_dev->prod_id[i], strlen(p_dev->prod_id[i])); |
| 797 | } |
| 798 | |
| 799 | i = 0; |
| 800 | |
| 801 | if (add_hotplug_env_var(envp, num_envp, &i, |
| 802 | buffer, buffer_size, &length, |
| 803 | "SOCKET_NO=%u", |
| 804 | p_dev->socket->sock)) |
| 805 | return -ENOMEM; |
| 806 | |
| 807 | if (add_hotplug_env_var(envp, num_envp, &i, |
| 808 | buffer, buffer_size, &length, |
| 809 | "DEVICE_NO=%02X", |
| 810 | p_dev->device_no)) |
| 811 | return -ENOMEM; |
| 812 | |
| 813 | if (add_hotplug_env_var(envp, num_envp, &i, |
| 814 | buffer, buffer_size, &length, |
| 815 | "MODALIAS=pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" |
| 816 | "pa%08Xpb%08Xpc%08Xpd%08X", |
| 817 | p_dev->has_manf_id ? p_dev->manf_id : 0, |
| 818 | p_dev->has_card_id ? p_dev->card_id : 0, |
| 819 | p_dev->has_func_id ? p_dev->func_id : 0, |
| 820 | p_dev->func, |
| 821 | p_dev->device_no, |
| 822 | hash[0], |
| 823 | hash[1], |
| 824 | hash[2], |
| 825 | hash[3])) |
| 826 | return -ENOMEM; |
| 827 | |
| 828 | envp[i] = NULL; |
| 829 | |
| 830 | return 0; |
| 831 | } |
| 832 | |
| 833 | #else |
| 834 | |
| 835 | static int pcmcia_bus_hotplug(struct device *dev, char **envp, int num_envp, |
| 836 | char *buffer, int buffer_size) |
| 837 | { |
| 838 | return -ENODEV; |
| 839 | } |
| 840 | |
| 841 | #endif |
| 842 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 843 | /************************ per-device sysfs output ***************************/ |
| 844 | |
| 845 | #define pcmcia_device_attr(field, test, format) \ |
Yani Ioannou | e404e27 | 2005-05-17 06:42:58 -0400 | [diff] [blame] | 846 | static ssize_t field##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 847 | { \ |
| 848 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ |
| 849 | return p_dev->test ? sprintf (buf, format, p_dev->field) : -ENODEV; \ |
| 850 | } |
| 851 | |
| 852 | #define pcmcia_device_stringattr(name, field) \ |
Yani Ioannou | e404e27 | 2005-05-17 06:42:58 -0400 | [diff] [blame] | 853 | static ssize_t name##_show (struct device *dev, struct device_attribute *attr, char *buf) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 854 | { \ |
| 855 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ |
| 856 | return p_dev->field ? sprintf (buf, "%s\n", p_dev->field) : -ENODEV; \ |
| 857 | } |
| 858 | |
| 859 | pcmcia_device_attr(func, socket, "0x%02x\n"); |
| 860 | pcmcia_device_attr(func_id, has_func_id, "0x%02x\n"); |
| 861 | pcmcia_device_attr(manf_id, has_manf_id, "0x%04x\n"); |
| 862 | pcmcia_device_attr(card_id, has_card_id, "0x%04x\n"); |
| 863 | pcmcia_device_stringattr(prod_id1, prod_id[0]); |
| 864 | pcmcia_device_stringattr(prod_id2, prod_id[1]); |
| 865 | pcmcia_device_stringattr(prod_id3, prod_id[2]); |
| 866 | pcmcia_device_stringattr(prod_id4, prod_id[3]); |
| 867 | |
Dominik Brodowski | a5b5577 | 2005-06-27 16:28:10 -0700 | [diff] [blame] | 868 | |
| 869 | static ssize_t pcmcia_store_allow_func_id_match (struct device * dev, struct device_attribute *attr, |
| 870 | const char * buf, size_t count) |
| 871 | { |
| 872 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); |
| 873 | if (!count) |
| 874 | return -EINVAL; |
| 875 | |
| 876 | down(&p_dev->socket->skt_sem); |
| 877 | p_dev->allow_func_id_match = 1; |
| 878 | up(&p_dev->socket->skt_sem); |
| 879 | |
| 880 | bus_rescan_devices(&pcmcia_bus_type); |
| 881 | |
| 882 | return count; |
| 883 | } |
| 884 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 885 | static struct device_attribute pcmcia_dev_attrs[] = { |
| 886 | __ATTR(function, 0444, func_show, NULL), |
| 887 | __ATTR_RO(func_id), |
| 888 | __ATTR_RO(manf_id), |
| 889 | __ATTR_RO(card_id), |
| 890 | __ATTR_RO(prod_id1), |
| 891 | __ATTR_RO(prod_id2), |
| 892 | __ATTR_RO(prod_id3), |
| 893 | __ATTR_RO(prod_id4), |
Dominik Brodowski | a5b5577 | 2005-06-27 16:28:10 -0700 | [diff] [blame] | 894 | __ATTR(allow_func_id_match, 0200, NULL, pcmcia_store_allow_func_id_match), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 895 | __ATTR_NULL, |
| 896 | }; |
| 897 | |
| 898 | |
| 899 | /*====================================================================== |
| 900 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 901 | The card status event handler. |
| 902 | |
| 903 | ======================================================================*/ |
| 904 | |
| 905 | struct send_event_data { |
| 906 | struct pcmcia_socket *skt; |
| 907 | event_t event; |
| 908 | int priority; |
| 909 | }; |
| 910 | |
| 911 | static int send_event_callback(struct device *dev, void * _data) |
| 912 | { |
| 913 | struct pcmcia_device *p_dev = to_pcmcia_dev(dev); |
| 914 | struct send_event_data *data = _data; |
| 915 | |
| 916 | /* we get called for all sockets, but may only pass the event |
| 917 | * for drivers _on the affected socket_ */ |
| 918 | if (p_dev->socket != data->skt) |
| 919 | return 0; |
| 920 | |
| 921 | if (p_dev->client.state & (CLIENT_UNBOUND|CLIENT_STALE)) |
| 922 | return 0; |
| 923 | |
| 924 | if (p_dev->client.EventMask & data->event) |
| 925 | return EVENT(&p_dev->client, data->event, data->priority); |
| 926 | |
| 927 | return 0; |
| 928 | } |
| 929 | |
| 930 | static int send_event(struct pcmcia_socket *s, event_t event, int priority) |
| 931 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 932 | struct send_event_data private; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 933 | |
| 934 | private.skt = s; |
| 935 | private.event = event; |
| 936 | private.priority = priority; |
| 937 | |
Dominik Brodowski | dc10949 | 2005-06-27 16:28:50 -0700 | [diff] [blame^] | 938 | return bus_for_each_dev(&pcmcia_bus_type, NULL, &private, send_event_callback); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 939 | } /* send_event */ |
| 940 | |
| 941 | |
| 942 | /* Normally, the event is passed to individual drivers after |
| 943 | * informing userspace. Only for CS_EVENT_CARD_REMOVAL this |
| 944 | * is inversed to maintain historic compatibility. |
| 945 | */ |
| 946 | |
| 947 | static int ds_event(struct pcmcia_socket *skt, event_t event, int priority) |
| 948 | { |
Dominik Brodowski | dc10949 | 2005-06-27 16:28:50 -0700 | [diff] [blame^] | 949 | struct pcmcia_socket *s = pcmcia_get_socket(skt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 950 | int ret = 0; |
| 951 | |
| 952 | ds_dbg(1, "ds_event(0x%06x, %d, 0x%p)\n", |
Dominik Brodowski | dc10949 | 2005-06-27 16:28:50 -0700 | [diff] [blame^] | 953 | event, priority, skt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 954 | |
| 955 | switch (event) { |
| 956 | |
| 957 | case CS_EVENT_CARD_REMOVAL: |
Dominik Brodowski | b5e4391 | 2005-06-27 16:28:50 -0700 | [diff] [blame] | 958 | s->pcmcia_state.present = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 959 | send_event(skt, event, priority); |
Dominik Brodowski | dc10949 | 2005-06-27 16:28:50 -0700 | [diff] [blame^] | 960 | unbind_request(skt); |
| 961 | handle_event(skt, event); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 962 | break; |
| 963 | |
| 964 | case CS_EVENT_CARD_INSERTION: |
Dominik Brodowski | b5e4391 | 2005-06-27 16:28:50 -0700 | [diff] [blame] | 965 | s->pcmcia_state.present = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 966 | pcmcia_card_add(skt); |
Dominik Brodowski | dc10949 | 2005-06-27 16:28:50 -0700 | [diff] [blame^] | 967 | handle_event(skt, event); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 968 | break; |
| 969 | |
| 970 | case CS_EVENT_EJECTION_REQUEST: |
| 971 | ret = send_event(skt, event, priority); |
| 972 | break; |
| 973 | |
| 974 | default: |
Dominik Brodowski | dc10949 | 2005-06-27 16:28:50 -0700 | [diff] [blame^] | 975 | handle_event(skt, event); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 976 | send_event(skt, event, priority); |
| 977 | break; |
| 978 | } |
| 979 | |
Dominik Brodowski | dc10949 | 2005-06-27 16:28:50 -0700 | [diff] [blame^] | 980 | pcmcia_put_socket(s); |
| 981 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 982 | return 0; |
| 983 | } /* ds_event */ |
| 984 | |
| 985 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 986 | |
| 987 | int pcmcia_register_client(client_handle_t *handle, client_reg_t *req) |
| 988 | { |
| 989 | client_t *client = NULL; |
Dominik Brodowski | dc10949 | 2005-06-27 16:28:50 -0700 | [diff] [blame^] | 990 | struct pcmcia_socket *s = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 991 | struct pcmcia_device *p_dev = NULL; |
| 992 | |
| 993 | /* Look for unbound client with matching dev_info */ |
| 994 | down_read(&pcmcia_socket_list_rwsem); |
| 995 | list_for_each_entry(s, &pcmcia_socket_list, socket_list) { |
| 996 | unsigned long flags; |
| 997 | |
| 998 | if (s->state & SOCKET_CARDBUS) |
| 999 | continue; |
| 1000 | |
Dominik Brodowski | dc10949 | 2005-06-27 16:28:50 -0700 | [diff] [blame^] | 1001 | s = pcmcia_get_socket(s); |
| 1002 | if (!s) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1003 | continue; |
| 1004 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); |
Dominik Brodowski | dc10949 | 2005-06-27 16:28:50 -0700 | [diff] [blame^] | 1005 | list_for_each_entry(p_dev, &s->devices_list, socket_device_list) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1006 | struct pcmcia_driver *p_drv; |
| 1007 | p_dev = pcmcia_get_dev(p_dev); |
| 1008 | if (!p_dev) |
| 1009 | continue; |
| 1010 | if (!(p_dev->client.state & CLIENT_UNBOUND) || |
| 1011 | (!p_dev->dev.driver)) { |
| 1012 | pcmcia_put_dev(p_dev); |
| 1013 | continue; |
| 1014 | } |
| 1015 | p_drv = to_pcmcia_drv(p_dev->dev.driver); |
| 1016 | if (!strncmp(p_drv->drv.name, (char *)req->dev_info, DEV_NAME_LEN)) { |
| 1017 | client = &p_dev->client; |
| 1018 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); |
| 1019 | goto found; |
| 1020 | } |
| 1021 | pcmcia_put_dev(p_dev); |
| 1022 | } |
| 1023 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); |
Dominik Brodowski | dc10949 | 2005-06-27 16:28:50 -0700 | [diff] [blame^] | 1024 | pcmcia_put_socket(s); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1025 | } |
| 1026 | found: |
| 1027 | up_read(&pcmcia_socket_list_rwsem); |
| 1028 | if (!p_dev || !client) |
| 1029 | return -ENODEV; |
| 1030 | |
Dominik Brodowski | dc10949 | 2005-06-27 16:28:50 -0700 | [diff] [blame^] | 1031 | pcmcia_put_socket(s); /* safe, as we already hold a reference from bind_device */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1032 | |
| 1033 | *handle = client; |
| 1034 | client->state &= ~CLIENT_UNBOUND; |
| 1035 | client->Socket = s; |
| 1036 | client->EventMask = req->EventMask; |
| 1037 | client->event_handler = req->event_handler; |
| 1038 | client->event_callback_args = req->event_callback_args; |
| 1039 | client->event_callback_args.client_handle = client; |
| 1040 | |
| 1041 | if (s->state & SOCKET_CARDBUS) |
| 1042 | client->state |= CLIENT_CARDBUS; |
| 1043 | |
| 1044 | if ((!(s->state & SOCKET_CARDBUS)) && (s->functions == 0) && |
| 1045 | (client->Function != BIND_FN_ALL)) { |
| 1046 | cistpl_longlink_mfc_t mfc; |
| 1047 | if (pccard_read_tuple(s, client->Function, CISTPL_LONGLINK_MFC, &mfc) |
| 1048 | == CS_SUCCESS) |
| 1049 | s->functions = mfc.nfn; |
| 1050 | else |
| 1051 | s->functions = 1; |
| 1052 | s->config = kmalloc(sizeof(config_t) * s->functions, |
| 1053 | GFP_KERNEL); |
| 1054 | if (!s->config) |
| 1055 | goto out_no_resource; |
| 1056 | memset(s->config, 0, sizeof(config_t) * s->functions); |
| 1057 | } |
| 1058 | |
| 1059 | ds_dbg(1, "register_client(): client 0x%p, dev %s\n", |
| 1060 | client, p_dev->dev.bus_id); |
| 1061 | if (client->EventMask & CS_EVENT_REGISTRATION_COMPLETE) |
| 1062 | EVENT(client, CS_EVENT_REGISTRATION_COMPLETE, CS_EVENT_PRI_LOW); |
| 1063 | |
| 1064 | if ((s->state & (SOCKET_PRESENT|SOCKET_CARDBUS)) == SOCKET_PRESENT) { |
| 1065 | if (client->EventMask & CS_EVENT_CARD_INSERTION) |
| 1066 | EVENT(client, CS_EVENT_CARD_INSERTION, CS_EVENT_PRI_LOW); |
| 1067 | } |
| 1068 | |
| 1069 | return CS_SUCCESS; |
| 1070 | |
| 1071 | out_no_resource: |
| 1072 | pcmcia_put_dev(p_dev); |
| 1073 | return CS_OUT_OF_RESOURCE; |
| 1074 | } /* register_client */ |
| 1075 | EXPORT_SYMBOL(pcmcia_register_client); |
| 1076 | |
| 1077 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1078 | /* unbind _all_ devices attached to a given pcmcia_bus_socket. The |
| 1079 | * drivers have been called with EVENT_CARD_REMOVAL before. |
| 1080 | */ |
Dominik Brodowski | dc10949 | 2005-06-27 16:28:50 -0700 | [diff] [blame^] | 1081 | static int unbind_request(struct pcmcia_socket *s) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1082 | { |
| 1083 | struct pcmcia_device *p_dev; |
| 1084 | unsigned long flags; |
| 1085 | |
Dominik Brodowski | dc10949 | 2005-06-27 16:28:50 -0700 | [diff] [blame^] | 1086 | ds_dbg(2, "unbind_request(%d)\n", s->sock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1087 | |
| 1088 | s->device_count = 0; |
| 1089 | |
| 1090 | for (;;) { |
| 1091 | /* unregister all pcmcia_devices registered with this socket*/ |
| 1092 | spin_lock_irqsave(&pcmcia_dev_list_lock, flags); |
| 1093 | if (list_empty(&s->devices_list)) { |
| 1094 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); |
| 1095 | return 0; |
| 1096 | } |
| 1097 | p_dev = list_entry((&s->devices_list)->next, struct pcmcia_device, socket_device_list); |
| 1098 | list_del(&p_dev->socket_device_list); |
| 1099 | p_dev->client.state |= CLIENT_STALE; |
| 1100 | spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); |
| 1101 | |
| 1102 | device_unregister(&p_dev->dev); |
| 1103 | } |
| 1104 | |
| 1105 | return 0; |
| 1106 | } /* unbind_request */ |
| 1107 | |
| 1108 | int pcmcia_deregister_client(client_handle_t handle) |
| 1109 | { |
| 1110 | struct pcmcia_socket *s; |
| 1111 | int i; |
| 1112 | struct pcmcia_device *p_dev = handle_to_pdev(handle); |
| 1113 | |
| 1114 | if (CHECK_HANDLE(handle)) |
| 1115 | return CS_BAD_HANDLE; |
| 1116 | |
| 1117 | s = SOCKET(handle); |
| 1118 | ds_dbg(1, "deregister_client(%p)\n", handle); |
| 1119 | |
| 1120 | if (handle->state & (CLIENT_IRQ_REQ|CLIENT_IO_REQ|CLIENT_CONFIG_LOCKED)) |
| 1121 | goto warn_out; |
| 1122 | for (i = 0; i < MAX_WIN; i++) |
| 1123 | if (handle->state & CLIENT_WIN_REQ(i)) |
| 1124 | goto warn_out; |
| 1125 | |
| 1126 | if (handle->state & CLIENT_STALE) { |
| 1127 | handle->client_magic = 0; |
| 1128 | handle->state &= ~CLIENT_STALE; |
| 1129 | pcmcia_put_dev(p_dev); |
| 1130 | } else { |
| 1131 | handle->state = CLIENT_UNBOUND; |
| 1132 | handle->event_handler = NULL; |
| 1133 | } |
| 1134 | |
| 1135 | return CS_SUCCESS; |
| 1136 | warn_out: |
| 1137 | printk(KERN_WARNING "ds: deregister_client was called too early.\n"); |
| 1138 | return CS_IN_USE; |
| 1139 | } /* deregister_client */ |
| 1140 | EXPORT_SYMBOL(pcmcia_deregister_client); |
| 1141 | |
Dominik Brodowski | 90c6cdd | 2005-06-27 16:28:49 -0700 | [diff] [blame] | 1142 | static struct pcmcia_callback pcmcia_bus_callback = { |
| 1143 | .owner = THIS_MODULE, |
| 1144 | .event = ds_event, |
| 1145 | .requery = pcmcia_bus_rescan, |
| 1146 | }; |
| 1147 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1148 | static int __devinit pcmcia_bus_add_socket(struct class_device *class_dev) |
| 1149 | { |
| 1150 | struct pcmcia_socket *socket = class_get_devdata(class_dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1151 | int ret; |
| 1152 | |
Dominik Brodowski | dc10949 | 2005-06-27 16:28:50 -0700 | [diff] [blame^] | 1153 | socket = pcmcia_get_socket(socket); |
| 1154 | if (!socket) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1155 | printk(KERN_ERR "PCMCIA obtaining reference to socket %p failed\n", socket); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1156 | return -ENODEV; |
| 1157 | } |
| 1158 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1159 | /* |
| 1160 | * Ugly. But we want to wait for the socket threads to have started up. |
| 1161 | * We really should let the drivers themselves drive some of this.. |
| 1162 | */ |
| 1163 | msleep(250); |
| 1164 | |
Dominik Brodowski | e7a480d | 2005-06-27 16:28:47 -0700 | [diff] [blame] | 1165 | #ifdef CONFIG_PCMCIA_IOCTL |
Dominik Brodowski | dc10949 | 2005-06-27 16:28:50 -0700 | [diff] [blame^] | 1166 | init_waitqueue_head(&socket->queue); |
Dominik Brodowski | e7a480d | 2005-06-27 16:28:47 -0700 | [diff] [blame] | 1167 | #endif |
Dominik Brodowski | dc10949 | 2005-06-27 16:28:50 -0700 | [diff] [blame^] | 1168 | INIT_LIST_HEAD(&socket->devices_list); |
| 1169 | INIT_WORK(&socket->device_add, pcmcia_delayed_add_pseudo_device, socket); |
| 1170 | memset(&socket->pcmcia_state, 0, sizeof(u8)); |
| 1171 | socket->device_count = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1172 | |
Dominik Brodowski | 90c6cdd | 2005-06-27 16:28:49 -0700 | [diff] [blame] | 1173 | ret = pccard_register_pcmcia(socket, &pcmcia_bus_callback); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1174 | if (ret) { |
| 1175 | printk(KERN_ERR "PCMCIA registration PCCard core failed for socket %p\n", socket); |
Dominik Brodowski | dc10949 | 2005-06-27 16:28:50 -0700 | [diff] [blame^] | 1176 | pcmcia_put_socket(socket); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1177 | return (ret); |
| 1178 | } |
| 1179 | |
| 1180 | return 0; |
| 1181 | } |
| 1182 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1183 | static void pcmcia_bus_remove_socket(struct class_device *class_dev) |
| 1184 | { |
| 1185 | struct pcmcia_socket *socket = class_get_devdata(class_dev); |
| 1186 | |
Dominik Brodowski | dc10949 | 2005-06-27 16:28:50 -0700 | [diff] [blame^] | 1187 | if (!socket) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1188 | return; |
| 1189 | |
Dominik Brodowski | dc10949 | 2005-06-27 16:28:50 -0700 | [diff] [blame^] | 1190 | socket->pcmcia_state.dead = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1191 | pccard_register_pcmcia(socket, NULL); |
| 1192 | |
Dominik Brodowski | dc10949 | 2005-06-27 16:28:50 -0700 | [diff] [blame^] | 1193 | pcmcia_put_socket(socket); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1194 | |
| 1195 | return; |
| 1196 | } |
| 1197 | |
| 1198 | |
| 1199 | /* the pcmcia_bus_interface is used to handle pcmcia socket devices */ |
| 1200 | static struct class_interface pcmcia_bus_interface = { |
| 1201 | .class = &pcmcia_socket_class, |
| 1202 | .add = &pcmcia_bus_add_socket, |
| 1203 | .remove = &pcmcia_bus_remove_socket, |
| 1204 | }; |
| 1205 | |
| 1206 | |
Dominik Brodowski | e7a480d | 2005-06-27 16:28:47 -0700 | [diff] [blame] | 1207 | struct bus_type pcmcia_bus_type = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1208 | .name = "pcmcia", |
Dominik Brodowski | 840c2ac | 2005-06-27 16:28:04 -0700 | [diff] [blame] | 1209 | .hotplug = pcmcia_bus_hotplug, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1210 | .match = pcmcia_bus_match, |
| 1211 | .dev_attrs = pcmcia_dev_attrs, |
| 1212 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1213 | |
| 1214 | |
| 1215 | static int __init init_pcmcia_bus(void) |
| 1216 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1217 | spin_lock_init(&pcmcia_dev_list_lock); |
| 1218 | |
| 1219 | bus_register(&pcmcia_bus_type); |
| 1220 | class_interface_register(&pcmcia_bus_interface); |
| 1221 | |
Dominik Brodowski | e7a480d | 2005-06-27 16:28:47 -0700 | [diff] [blame] | 1222 | pcmcia_setup_ioctl(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1223 | |
| 1224 | return 0; |
| 1225 | } |
| 1226 | fs_initcall(init_pcmcia_bus); /* one level after subsys_initcall so that |
| 1227 | * pcmcia_socket_class is already registered */ |
| 1228 | |
| 1229 | |
| 1230 | static void __exit exit_pcmcia_bus(void) |
| 1231 | { |
Dominik Brodowski | e7a480d | 2005-06-27 16:28:47 -0700 | [diff] [blame] | 1232 | pcmcia_cleanup_ioctl(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1233 | |
Dominik Brodowski | e7a480d | 2005-06-27 16:28:47 -0700 | [diff] [blame] | 1234 | class_interface_unregister(&pcmcia_bus_interface); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1235 | |
| 1236 | bus_unregister(&pcmcia_bus_type); |
| 1237 | } |
| 1238 | module_exit(exit_pcmcia_bus); |
| 1239 | |
| 1240 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1241 | MODULE_ALIAS("ds"); |