| File: | obj-scan-build/../linux/pcmcia-cs/modules/ds.c |
| Location: | line 510, column 11 |
| Description: | Access to field 'next' results in a dereference of a null pointer |
| 1 | /*====================================================================== | |||
| 2 | ||||
| 3 | PC Card Driver Services | |||
| 4 | ||||
| 5 | ds.c 1.115 2002/10/12 19:03:44 | |||
| 6 | ||||
| 7 | The contents of this file are subject to the Mozilla Public | |||
| 8 | License Version 1.1 (the "License"); you may not use this file | |||
| 9 | except in compliance with the License. You may obtain a copy of | |||
| 10 | the License at http://www.mozilla.org/MPL/ | |||
| 11 | ||||
| 12 | Software distributed under the License is distributed on an "AS | |||
| 13 | IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or | |||
| 14 | implied. See the License for the specific language governing | |||
| 15 | rights and limitations under the License. | |||
| 16 | ||||
| 17 | The initial developer of the original code 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 | Alternatively, the contents of this file may be used under the | |||
| 22 | terms of the GNU General Public License version 2 (the "GPL"), in | |||
| 23 | which case the provisions of the GPL are applicable instead of the | |||
| 24 | above. If you wish to allow the use of your version of this file | |||
| 25 | only under the terms of the GPL and not to allow others to use | |||
| 26 | your version of this file under the MPL, indicate your decision | |||
| 27 | by deleting the provisions above and replace them with the notice | |||
| 28 | and other provisions required by the GPL. If you do not delete | |||
| 29 | the provisions above, a recipient may use your version of this | |||
| 30 | file under either the MPL or the GPL. | |||
| 31 | ||||
| 32 | ======================================================================*/ | |||
| 33 | ||||
| 34 | #include <linux/module.h> | |||
| 35 | #include <linux/init.h> | |||
| 36 | #include <linux/kernel.h> | |||
| 37 | #include <linux/major.h> | |||
| 38 | #include <linux/string.h> | |||
| 39 | #include <linux/errno.h> | |||
| 40 | #include <linux/slab.h> | |||
| 41 | #include <linux/mm.h> | |||
| 42 | #include <linux/fcntl.h> | |||
| 43 | #include <linux/sched.h> | |||
| 44 | #include <linux/timer.h> | |||
| 45 | #include <linux/ioctl.h> | |||
| 46 | #include <linux/proc_fs.h> | |||
| 47 | #if (LINUX_VERSION_CODE131108 >= KERNEL_VERSION(2,1,23)(((2)<<16)+(1<<8)+23)) | |||
| 48 | #include <linux/poll.h> | |||
| 49 | #endif | |||
| 50 | ||||
| 51 | /* | |||
| 52 | * <pcmcia/cs.h> defines io_req_t which is not used in this file, but | |||
| 53 | * which clashes with the io_req_t needed for the Mach devices. Rename | |||
| 54 | * it to cardservice_io_req_t to avoid this clash. | |||
| 55 | */ | |||
| 56 | #define io_req_t cardservice_io_req_t | |||
| 57 | #include <pcmcia/version.h> | |||
| 58 | #include <pcmcia/cs_types.h> | |||
| 59 | #include <pcmcia/cs.h> | |||
| 60 | #include <pcmcia/bulkmem.h> | |||
| 61 | #include <pcmcia/cistpl.h> | |||
| 62 | #include <pcmcia/ds.h> | |||
| 63 | #undef io_req_t | |||
| 64 | ||||
| 65 | /*====================================================================*/ | |||
| 66 | ||||
| 67 | /* Module parameters */ | |||
| 68 | ||||
| 69 | MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>"); | |||
| 70 | MODULE_DESCRIPTION("PCMCIA Driver Services " CS_RELEASE); | |||
| 71 | MODULE_LICENSE("Dual MPL/GPL"); | |||
| 72 | ||||
| 73 | #define INT_MODULE_PARM(n, v)static int n = v; static int n = v; MODULE_PARM(n, "i") | |||
| 74 | ||||
| 75 | #ifdef PCMCIA_DEBUG4 | |||
| 76 | INT_MODULE_PARM(pc_debug, PCMCIA_DEBUG)static int pc_debug = 4;; | |||
| 77 | #define DEBUG(n, args...)if (pc_debug>(n)) printk("<7>" args...) if (pc_debug>(n)) printk(KERN_DEBUG"<7>" args) | |||
| 78 | static const char *version = | |||
| 79 | "ds.c 1.115 2002/10/12 19:03:44 (David Hinds)"; | |||
| 80 | #else | |||
| 81 | #define DEBUG(n, args...)if (pc_debug>(n)) printk("<7>" args...) | |||
| 82 | #endif | |||
| 83 | ||||
| 84 | /*====================================================================*/ | |||
| 85 | ||||
| 86 | typedef struct driver_info_t { | |||
| 87 | dev_info_t dev_info; | |||
| 88 | int use_count, status; | |||
| 89 | dev_link_t *(*attach)(void); | |||
| 90 | void (*detach)(dev_link_t *); | |||
| 91 | struct driver_info_t *next; | |||
| 92 | } driver_info_t; | |||
| 93 | ||||
| 94 | typedef struct socket_bind_t { | |||
| 95 | driver_info_t *driver; | |||
| 96 | u_char function; | |||
| 97 | dev_link_t *instance; | |||
| 98 | struct socket_bind_t *next; | |||
| 99 | } socket_bind_t; | |||
| 100 | ||||
| 101 | /* Device user information */ | |||
| 102 | #define MAX_EVENTS32 32 | |||
| 103 | #define USER_MAGIC0x7ea4 0x7ea4 | |||
| 104 | #define CHECK_USER(u)(((u) == ((void *) 0)) || ((u)->user_magic != 0x7ea4)) \ | |||
| 105 | (((u) == NULL((void *) 0)) || ((u)->user_magic != USER_MAGIC0x7ea4)) | |||
| 106 | typedef struct user_info_t { | |||
| 107 | u_int user_magic; | |||
| 108 | int event_head, event_tail; | |||
| 109 | event_t event[MAX_EVENTS32]; | |||
| 110 | struct user_info_t *next; | |||
| 111 | } user_info_t; | |||
| 112 | ||||
| 113 | /* Socket state information */ | |||
| 114 | typedef struct socket_info_t { | |||
| 115 | client_handle_t handle; | |||
| 116 | int state; | |||
| 117 | user_info_t *user; | |||
| 118 | int req_pending, req_result; | |||
| 119 | wait_queue_head_t queue, request; | |||
| 120 | struct timer_list removal; | |||
| 121 | socket_bind_t *bind; | |||
| 122 | } socket_info_t; | |||
| 123 | ||||
| 124 | #define SOCKET_PRESENT0x01 0x01 | |||
| 125 | #define SOCKET_BUSY0x02 0x02 | |||
| 126 | #define SOCKET_REMOVAL_PENDING0x10 0x10 | |||
| 127 | ||||
| 128 | /*====================================================================*/ | |||
| 129 | ||||
| 130 | /* Device driver ID passed to Card Services */ | |||
| 131 | static dev_info_t dev_info = "Driver Services"; | |||
| 132 | ||||
| 133 | /* Linked list of all registered device drivers */ | |||
| 134 | static driver_info_t *root_driver = NULL((void *) 0); | |||
| 135 | ||||
| 136 | static int sockets = 0, major_dev = -1; | |||
| 137 | static socket_info_t *socket_table = NULL((void *) 0); | |||
| 138 | ||||
| 139 | extern struct proc_dir_entry *proc_pccard; | |||
| 140 | ||||
| 141 | /* We use this to distinguish in-kernel from modular drivers */ | |||
| 142 | static int init_status = 1; | |||
| 143 | ||||
| 144 | /*====================================================================*/ | |||
| 145 | ||||
| 146 | static void cs_error(client_handle_t handle, int func, int ret) | |||
| 147 | { | |||
| 148 | error_info_t err = { func, ret }; | |||
| 149 | CardServices(ReportError, handle, &err); | |||
| 150 | } | |||
| 151 | ||||
| 152 | /*====================================================================== | |||
| 153 | ||||
| 154 | Register_pccard_driver() and unregister_pccard_driver() are used | |||
| 155 | tell Driver Services that a PC Card client driver is available to | |||
| 156 | be bound to sockets. | |||
| 157 | ||||
| 158 | ======================================================================*/ | |||
| 159 | ||||
| 160 | int register_pccard_driver(dev_info_t *dev_info, | |||
| 161 | dev_link_t *(*attach)(void), | |||
| 162 | void (*detach)(dev_link_t *)) | |||
| 163 | { | |||
| 164 | driver_info_t *driver; | |||
| 165 | socket_bind_t *b; | |||
| 166 | int i; | |||
| 167 | ||||
| 168 | DEBUG(0, "ds: register_pccard_driver('%s')\n", (char *)dev_info)if (pc_debug>(0)) printk("<7>" "ds: register_pccard_driver('%s')\n" , (char *)dev_info); | |||
| 169 | for (driver = root_driver; driver; driver = driver->next) | |||
| 170 | if (strncmp((char *)dev_info, (char *)driver->dev_info, | |||
| 171 | DEV_NAME_LEN32) == 0) | |||
| 172 | break; | |||
| 173 | if (!driver) { | |||
| 174 | driver = kmalloclinux_kmalloc(sizeof(driver_info_t), GFP_KERNEL0x03); | |||
| 175 | if (!driver) return -ENOMEM12; | |||
| 176 | strncpy(driver->dev_info, (char *)dev_info, DEV_NAME_LEN32); | |||
| 177 | driver->use_count = 0; | |||
| 178 | driver->status = init_status; | |||
| 179 | driver->next = root_driver; | |||
| 180 | root_driver = driver; | |||
| 181 | } | |||
| 182 | ||||
| 183 | driver->attach = attach; | |||
| 184 | driver->detach = detach; | |||
| 185 | if (driver->use_count == 0) return 0; | |||
| 186 | ||||
| 187 | /* Instantiate any already-bound devices */ | |||
| 188 | for (i = 0; i < sockets; i++) | |||
| 189 | for (b = socket_table[i].bind; b; b = b->next) { | |||
| 190 | if (b->driver != driver) continue; | |||
| 191 | b->instance = driver->attach(); | |||
| 192 | if (b->instance == NULL((void *) 0)) | |||
| 193 | printk(KERN_NOTICE"<5>" "ds: unable to create instance " | |||
| 194 | "of '%s'!\n", driver->dev_info); | |||
| 195 | } | |||
| 196 | ||||
| 197 | return 0; | |||
| 198 | } /* register_pccard_driver */ | |||
| 199 | ||||
| 200 | /*====================================================================*/ | |||
| 201 | ||||
| 202 | int unregister_pccard_driver(dev_info_t *dev_info) | |||
| 203 | { | |||
| 204 | driver_info_t *target, **d = &root_driver; | |||
| 205 | socket_bind_t *b; | |||
| 206 | int i; | |||
| 207 | ||||
| 208 | DEBUG(0, "ds: unregister_pccard_driver('%s')\n",if (pc_debug>(0)) printk("<7>" "ds: unregister_pccard_driver('%s')\n" , (char *)dev_info) | |||
| 209 | (char *)dev_info)if (pc_debug>(0)) printk("<7>" "ds: unregister_pccard_driver('%s')\n" , (char *)dev_info); | |||
| 210 | while ((*d) && (strncmp((*d)->dev_info, (char *)dev_info, | |||
| 211 | DEV_NAME_LEN32) != 0)) | |||
| 212 | d = &(*d)->next; | |||
| 213 | if (*d == NULL((void *) 0)) | |||
| 214 | return -ENODEV19; | |||
| 215 | ||||
| 216 | target = *d; | |||
| 217 | if (target->use_count == 0) { | |||
| 218 | *d = target->next; | |||
| 219 | kfree(target); | |||
| 220 | } else { | |||
| 221 | /* Blank out any left-over device instances */ | |||
| 222 | target->attach = NULL((void *) 0); target->detach = NULL((void *) 0); | |||
| 223 | for (i = 0; i < sockets; i++) | |||
| 224 | for (b = socket_table[i].bind; b; b = b->next) | |||
| 225 | if (b->driver == target) b->instance = NULL((void *) 0); | |||
| 226 | } | |||
| 227 | return 0; | |||
| 228 | } /* unregister_pccard_driver */ | |||
| 229 | ||||
| 230 | /*====================================================================*/ | |||
| 231 | ||||
| 232 | #ifdef HAS_PROC_BUS | |||
| 233 | static int proc_read_drivers(char *buf, char **start, off_t pos, | |||
| 234 | int count, int *eof, void *data) | |||
| 235 | { | |||
| 236 | driver_info_t *d; | |||
| 237 | char *p = buf; | |||
| 238 | for (d = root_driver; d; d = d->next) | |||
| 239 | p += sprintflinux_sprintf(p, "%-24.24s %d %d\n", d->dev_info, | |||
| 240 | d->status, d->use_count); | |||
| 241 | return (p - buf); | |||
| 242 | } | |||
| 243 | #endif | |||
| 244 | ||||
| 245 | /*====================================================================== | |||
| 246 | ||||
| 247 | These manage a ring buffer of events pending for one user process | |||
| 248 | ||||
| 249 | ======================================================================*/ | |||
| 250 | ||||
| 251 | static int queue_empty(user_info_t *user) | |||
| 252 | { | |||
| 253 | return (user->event_head == user->event_tail); | |||
| 254 | } | |||
| 255 | ||||
| 256 | static event_t get_queued_event(user_info_t *user) | |||
| 257 | { | |||
| 258 | user->event_tail = (user->event_tail+1) % MAX_EVENTS32; | |||
| 259 | return user->event[user->event_tail]; | |||
| 260 | } | |||
| 261 | ||||
| 262 | static void queue_event(user_info_t *user, event_t event) | |||
| 263 | { | |||
| 264 | user->event_head = (user->event_head+1) % MAX_EVENTS32; | |||
| 265 | if (user->event_head == user->event_tail) | |||
| 266 | user->event_tail = (user->event_tail+1) % MAX_EVENTS32; | |||
| 267 | user->event[user->event_head] = event; | |||
| 268 | } | |||
| 269 | ||||
| 270 | static void handle_event(socket_info_t *s, event_t event) | |||
| 271 | { | |||
| 272 | user_info_t *user; | |||
| 273 | for (user = s->user; user; user = user->next) | |||
| 274 | queue_event(user, event); | |||
| 275 | wake_up_interruptiblewake_up(&s->queue); | |||
| 276 | } | |||
| 277 | ||||
| 278 | static int handle_request(socket_info_t *s, event_t event) | |||
| 279 | { | |||
| 280 | if (s->req_pending != 0) | |||
| 281 | return CS_IN_USE0x1e; | |||
| 282 | if (s->state & SOCKET_BUSY0x02) | |||
| 283 | s->req_pending = 1; | |||
| 284 | handle_event(s, event); | |||
| 285 | if (s->req_pending > 0) { | |||
| 286 | interruptible_sleep_on(&s->request); | |||
| 287 | if (signal_pending(current)0) | |||
| 288 | return CS_IN_USE0x1e; | |||
| 289 | else | |||
| 290 | return s->req_result; | |||
| 291 | } | |||
| 292 | return CS_SUCCESS0x00; | |||
| 293 | } | |||
| 294 | ||||
| 295 | static void handle_removal(u_long sn) | |||
| 296 | { | |||
| 297 | socket_info_t *s = &socket_table[sn]; | |||
| 298 | handle_event(s, CS_EVENT_CARD_REMOVAL0x000008); | |||
| 299 | s->state &= ~SOCKET_REMOVAL_PENDING0x10; | |||
| 300 | } | |||
| 301 | ||||
| 302 | /*====================================================================== | |||
| 303 | ||||
| 304 | The card status event handler. | |||
| 305 | ||||
| 306 | ======================================================================*/ | |||
| 307 | ||||
| 308 | static int ds_event(event_t event, int priority, | |||
| 309 | event_callback_args_t *args) | |||
| 310 | { | |||
| 311 | socket_info_t *s; | |||
| 312 | int i; | |||
| 313 | ||||
| 314 | DEBUG(1, "ds: ds_event(0x%06x, %d, 0x%p)\n",if (pc_debug>(1)) printk("<7>" "ds: ds_event(0x%06x, %d, 0x%p)\n" , event, priority, args->client_handle) | |||
| 315 | event, priority, args->client_handle)if (pc_debug>(1)) printk("<7>" "ds: ds_event(0x%06x, %d, 0x%p)\n" , event, priority, args->client_handle); | |||
| 316 | s = args->client_data; | |||
| 317 | i = s - socket_table; | |||
| 318 | ||||
| 319 | switch (event) { | |||
| 320 | ||||
| 321 | case CS_EVENT_CARD_REMOVAL0x000008: | |||
| 322 | s->state &= ~SOCKET_PRESENT0x01; | |||
| 323 | if (!(s->state & SOCKET_REMOVAL_PENDING0x10)) { | |||
| 324 | s->state |= SOCKET_REMOVAL_PENDING0x10; | |||
| 325 | s->removal.expires = jiffies + HZ100/10; | |||
| 326 | add_timer(&s->removal); | |||
| 327 | } | |||
| 328 | break; | |||
| 329 | ||||
| 330 | case CS_EVENT_CARD_INSERTION0x000004: | |||
| 331 | s->state |= SOCKET_PRESENT0x01; | |||
| 332 | handle_event(s, event); | |||
| 333 | break; | |||
| 334 | ||||
| 335 | case CS_EVENT_EJECTION_REQUEST0x010000: | |||
| 336 | return handle_request(s, event); | |||
| 337 | break; | |||
| 338 | ||||
| 339 | default: | |||
| 340 | handle_event(s, event); | |||
| 341 | break; | |||
| 342 | } | |||
| 343 | ||||
| 344 | return 0; | |||
| 345 | } /* ds_event */ | |||
| 346 | ||||
| 347 | /*====================================================================== | |||
| 348 | ||||
| 349 | bind_mtd() connects a memory region with an MTD client. | |||
| 350 | ||||
| 351 | ======================================================================*/ | |||
| 352 | ||||
| 353 | static int bind_mtd(int i, mtd_info_t *mtd_info) | |||
| 354 | { | |||
| 355 | mtd_bind_t bind_req; | |||
| 356 | int ret; | |||
| 357 | ||||
| 358 | bind_req.dev_info = &mtd_info->dev_info; | |||
| 359 | bind_req.Attributes = mtd_info->Attributes; | |||
| 360 | bind_req.Socket = i; | |||
| 361 | bind_req.CardOffset = mtd_info->CardOffset; | |||
| 362 | ret = CardServices(BindMTD, &bind_req); | |||
| 363 | if (ret != CS_SUCCESS0x00) { | |||
| 364 | cs_error(NULL((void *) 0), BindMTD, ret); | |||
| 365 | printk(KERN_NOTICE"<5>" "ds: unable to bind MTD '%s' to socket %d" | |||
| 366 | " offset 0x%x\n", | |||
| 367 | (char *)bind_req.dev_info, i, bind_req.CardOffset); | |||
| 368 | return -ENODEV19; | |||
| 369 | } | |||
| 370 | return 0; | |||
| 371 | } /* bind_mtd */ | |||
| 372 | ||||
| 373 | /*====================================================================== | |||
| 374 | ||||
| 375 | bind_request() connects a socket to a particular client driver. | |||
| 376 | It looks up the specified device ID in the list of registered | |||
| 377 | drivers, binds it to the socket, and tries to create an instance | |||
| 378 | of the device. unbind_request() deletes a driver instance. | |||
| 379 | ||||
| 380 | ======================================================================*/ | |||
| 381 | ||||
| 382 | static int bind_request(int i, bind_info_t *bind_info) | |||
| 383 | { | |||
| 384 | struct driver_info_t *driver; | |||
| 385 | socket_bind_t *b; | |||
| 386 | bind_req_t bind_req; | |||
| 387 | socket_info_t *s = &socket_table[i]; | |||
| 388 | int ret; | |||
| 389 | ||||
| 390 | DEBUG(2, "bind_request(%d, '%s')\n", i,if (pc_debug>(2)) printk("<7>" "bind_request(%d, '%s')\n" , i, (char *)bind_info->dev_info) | |||
| 391 | (char *)bind_info->dev_info)if (pc_debug>(2)) printk("<7>" "bind_request(%d, '%s')\n" , i, (char *)bind_info->dev_info); | |||
| 392 | for (driver = root_driver; driver; driver = driver->next) | |||
| 393 | if (strcmp((char *)driver->dev_info, | |||
| 394 | (char *)bind_info->dev_info) == 0) | |||
| 395 | break; | |||
| 396 | if (driver == NULL((void *) 0)) { | |||
| 397 | driver = kmalloclinux_kmalloc(sizeof(driver_info_t), GFP_KERNEL0x03); | |||
| 398 | if (!driver) return -ENOMEM12; | |||
| 399 | strncpy(driver->dev_info, bind_info->dev_info, DEV_NAME_LEN32); | |||
| 400 | driver->use_count = 0; | |||
| 401 | driver->next = root_driver; | |||
| 402 | driver->attach = NULL((void *) 0); driver->detach = NULL((void *) 0); | |||
| 403 | root_driver = driver; | |||
| 404 | } | |||
| 405 | ||||
| 406 | for (b = s->bind; b; b = b->next) | |||
| 407 | if ((driver == b->driver) && | |||
| 408 | (bind_info->function == b->function)) | |||
| 409 | break; | |||
| 410 | if (b != NULL((void *) 0)) { | |||
| 411 | bind_info->instance = b->instance; | |||
| 412 | return -EBUSY16; | |||
| 413 | } | |||
| 414 | b = kmalloclinux_kmalloc(sizeof(socket_bind_t), GFP_KERNEL0x03); | |||
| 415 | if (!b) | |||
| 416 | return -ENOMEM12; | |||
| 417 | ||||
| 418 | bind_req.Socket = i; | |||
| 419 | bind_req.Function = bind_info->function; | |||
| 420 | bind_req.dev_info = &driver->dev_info; | |||
| 421 | ret = CardServices(BindDevice, &bind_req); | |||
| 422 | if (ret != CS_SUCCESS0x00) { | |||
| 423 | cs_error(NULL((void *) 0), BindDevice, ret); | |||
| 424 | printk(KERN_NOTICE"<5>" "ds: unable to bind '%s' to socket %d\n", | |||
| 425 | (char *)dev_info, i); | |||
| 426 | kfree(b); | |||
| 427 | return -ENODEV19; | |||
| 428 | } | |||
| 429 | ||||
| 430 | /* Add binding to list for this socket */ | |||
| 431 | driver->use_count++; | |||
| 432 | b->driver = driver; | |||
| 433 | b->function = bind_info->function; | |||
| 434 | b->instance = NULL((void *) 0); | |||
| 435 | b->next = s->bind; | |||
| 436 | s->bind = b; | |||
| 437 | ||||
| 438 | if (driver->attach) { | |||
| 439 | b->instance = driver->attach(); | |||
| 440 | if (b->instance == NULL((void *) 0)) { | |||
| 441 | printk(KERN_NOTICE"<5>" "ds: unable to create instance " | |||
| 442 | "of '%s'!\n", (char *)bind_info->dev_info); | |||
| 443 | return -ENODEV19; | |||
| 444 | } | |||
| 445 | } | |||
| 446 | ||||
| 447 | return 0; | |||
| 448 | } /* bind_request */ | |||
| 449 | ||||
| 450 | /*====================================================================*/ | |||
| 451 | ||||
| 452 | static int get_device_info(int i, bind_info_t *bind_info, int first) | |||
| 453 | { | |||
| 454 | socket_info_t *s = &socket_table[i]; | |||
| 455 | socket_bind_t *b; | |||
| 456 | dev_node_t *node; | |||
| 457 | ||||
| 458 | for (b = s->bind; b; b = b->next) | |||
| 459 | if ((strcmp((char *)b->driver->dev_info, | |||
| 460 | (char *)bind_info->dev_info) == 0) && | |||
| 461 | (b->function == bind_info->function)) | |||
| 462 | break; | |||
| 463 | if (b == NULL((void *) 0)) return -ENODEV19; | |||
| 464 | if ((b->instance == NULL((void *) 0)) || | |||
| 465 | (b->instance->state & DEV_CONFIG_PENDING0x10)) | |||
| 466 | return -EAGAIN11; | |||
| 467 | if (first) | |||
| 468 | node = b->instance->dev; | |||
| 469 | else | |||
| 470 | for (node = b->instance->dev; node; node = node->next) | |||
| 471 | if (node == bind_info->next) break; | |||
| 472 | if (node == NULL((void *) 0)) return -ENODEV19; | |||
| 473 | ||||
| 474 | strncpy(bind_info->name, node->dev_name, DEV_NAME_LEN32); | |||
| 475 | bind_info->name[DEV_NAME_LEN32-1] = '\0'; | |||
| 476 | bind_info->major = node->major; | |||
| 477 | bind_info->minor = node->minor; | |||
| 478 | bind_info->next = node->next; | |||
| 479 | ||||
| 480 | return 0; | |||
| 481 | } /* get_device_info */ | |||
| 482 | ||||
| 483 | /*====================================================================*/ | |||
| 484 | ||||
| 485 | static int unbind_request(int i, bind_info_t *bind_info) | |||
| 486 | { | |||
| 487 | socket_info_t *s = &socket_table[i]; | |||
| 488 | socket_bind_t **b, *c; | |||
| 489 | ||||
| 490 | DEBUG(2, "unbind_request(%d, '%s')\n", i,if (pc_debug>(2)) printk("<7>" "unbind_request(%d, '%s')\n" , i, (char *)bind_info->dev_info) | |||
| 491 | (char *)bind_info->dev_info)if (pc_debug>(2)) printk("<7>" "unbind_request(%d, '%s')\n" , i, (char *)bind_info->dev_info); | |||
| 492 | for (b = &s->bind; *b; b = &(*b)->next) | |||
| 493 | if ((strcmp((char *)(*b)->driver->dev_info, | |||
| 494 | (char *)bind_info->dev_info) == 0) && | |||
| 495 | ((*b)->function == bind_info->function)) | |||
| 496 | break; | |||
| 497 | if (*b == NULL((void *) 0)) | |||
| 498 | return -ENODEV19; | |||
| 499 | ||||
| 500 | c = *b; | |||
| 501 | c->driver->use_count--; | |||
| 502 | if (c->driver->detach) { | |||
| 503 | if (c->instance) | |||
| 504 | c->driver->detach(c->instance); | |||
| 505 | } else { | |||
| 506 | if (c->driver->use_count == 0) { | |||
| 507 | driver_info_t **d; | |||
| 508 | for (d = &root_driver; *d; d = &((*d)->next)) | |||
| 509 | if (c->driver == *d) break; | |||
| 510 | *d = (*d)->next; | |||
| ||||
| 511 | kfree(c->driver); | |||
| 512 | } | |||
| 513 | } | |||
| 514 | *b = c->next; | |||
| 515 | kfree(c); | |||
| 516 | ||||
| 517 | return 0; | |||
| 518 | } /* unbind_request */ | |||
| 519 | ||||
| 520 | /*====================================================================== | |||
| 521 | ||||
| 522 | The user-mode PC Card device interface | |||
| 523 | ||||
| 524 | ======================================================================*/ | |||
| 525 | ||||
| 526 | /* Disable all the ds filesystem operations. */ | |||
| 527 | #ifndef MACH1 | |||
| 528 | ||||
| 529 | static int ds_open(struct inode *inode, struct file *file) | |||
| 530 | { | |||
| 531 | socket_t i = MINOR(inode->i_rdev)((inode->i_rdev) & ((1<<8) - 1)); | |||
| 532 | socket_info_t *s; | |||
| 533 | user_info_t *user; | |||
| 534 | ||||
| 535 | DEBUG(0, "ds_open(socket %d)\n", i)if (pc_debug>(0)) printk("<7>" "ds_open(socket %d)\n" , i); | |||
| 536 | if ((i >= sockets) || (sockets == 0)) | |||
| 537 | return -ENODEV19; | |||
| 538 | s = &socket_table[i]; | |||
| 539 | if ((file->f_flags & O_ACCMODE0003) != O_RDONLY00) { | |||
| 540 | if (s->state & SOCKET_BUSY0x02) | |||
| 541 | return -EBUSY16; | |||
| 542 | else | |||
| 543 | s->state |= SOCKET_BUSY0x02; | |||
| 544 | } | |||
| 545 | ||||
| 546 | MOD_INC_USE_COUNTdo { } while (0); | |||
| 547 | user = kmalloclinux_kmalloc(sizeof(user_info_t), GFP_KERNEL0x03); | |||
| 548 | if (!user) { | |||
| 549 | MOD_DEC_USE_COUNTdo { } while (0); | |||
| 550 | return -ENOMEM12; | |||
| 551 | } | |||
| 552 | user->event_tail = user->event_head = 0; | |||
| 553 | user->next = s->user; | |||
| 554 | user->user_magic = USER_MAGIC0x7ea4; | |||
| 555 | s->user = user; | |||
| 556 | file->private_data = user; | |||
| 557 | ||||
| 558 | if (s->state & SOCKET_PRESENT0x01) | |||
| 559 | queue_event(user, CS_EVENT_CARD_INSERTION0x000004); | |||
| 560 | return 0; | |||
| 561 | } /* ds_open */ | |||
| 562 | ||||
| 563 | /*====================================================================*/ | |||
| 564 | ||||
| 565 | static FS_RELEASE_T ds_release(struct inode *inode, struct file *file) | |||
| 566 | { | |||
| 567 | socket_t i = MINOR(inode->i_rdev)((inode->i_rdev) & ((1<<8) - 1)); | |||
| 568 | socket_info_t *s; | |||
| 569 | user_info_t *user, **link; | |||
| 570 | ||||
| 571 | DEBUG(0, "ds_release(socket %d)\n", i)if (pc_debug>(0)) printk("<7>" "ds_release(socket %d)\n" , i); | |||
| 572 | if ((i >= sockets) || (sockets == 0)) | |||
| 573 | return (FS_RELEASE_T)0; | |||
| 574 | s = &socket_table[i]; | |||
| 575 | user = file->private_data; | |||
| 576 | if (CHECK_USER(user)(((user) == ((void *) 0)) || ((user)->user_magic != 0x7ea4 ))) | |||
| 577 | return (FS_RELEASE_T)0; | |||
| 578 | ||||
| 579 | /* Unlink user data structure */ | |||
| 580 | if ((file->f_flags & O_ACCMODE0003) != O_RDONLY00) | |||
| 581 | s->state &= ~SOCKET_BUSY0x02; | |||
| 582 | file->private_data = NULL((void *) 0); | |||
| 583 | for (link = &s->user; *link; link = &(*link)->next) | |||
| 584 | if (*link == user) break; | |||
| 585 | if (link == NULL((void *) 0)) | |||
| 586 | return (FS_RELEASE_T)0; | |||
| 587 | *link = user->next; | |||
| 588 | user->user_magic = 0; | |||
| 589 | kfree(user); | |||
| 590 | ||||
| 591 | MOD_DEC_USE_COUNTdo { } while (0); | |||
| 592 | return (FS_RELEASE_T)0; | |||
| 593 | } /* ds_release */ | |||
| 594 | ||||
| 595 | /*====================================================================*/ | |||
| 596 | ||||
| 597 | static ssize_t ds_read FOPS(struct inode *inode, | |||
| 598 | struct file *file, char *buf, | |||
| 599 | size_t count, loff_t *ppos) | |||
| 600 | { | |||
| 601 | socket_t i = MINOR(F_INODE(file)->i_rdev)((F_INODE(file)->i_rdev) & ((1<<8) - 1)); | |||
| 602 | socket_info_t *s; | |||
| 603 | user_info_t *user; | |||
| 604 | ||||
| 605 | DEBUG(2, "ds_read(socket %d)\n", i)if (pc_debug>(2)) printk("<7>" "ds_read(socket %d)\n" , i); | |||
| 606 | ||||
| 607 | if ((i >= sockets) || (sockets == 0)) | |||
| 608 | return -ENODEV19; | |||
| 609 | if (count < 4) | |||
| 610 | return -EINVAL22; | |||
| 611 | s = &socket_table[i]; | |||
| 612 | user = file->private_data; | |||
| 613 | if (CHECK_USER(user)(((user) == ((void *) 0)) || ((user)->user_magic != 0x7ea4 ))) | |||
| 614 | return -EIO5; | |||
| 615 | ||||
| 616 | if (queue_empty(user)) { | |||
| 617 | interruptible_sleep_on(&s->queue); | |||
| 618 | if (signal_pending(current)0) | |||
| 619 | return -EINTR4; | |||
| 620 | } | |||
| 621 | put_user(get_queued_event(user), (int *)buf)__put_user((unsigned long)(get_queued_event(user)),((int *)buf ),sizeof(*((int *)buf))); | |||
| 622 | return 4; | |||
| 623 | } /* ds_read */ | |||
| 624 | ||||
| 625 | /*====================================================================*/ | |||
| 626 | ||||
| 627 | static ssize_t ds_write FOPS(struct inode *inode, | |||
| 628 | struct file *file, const char *buf, | |||
| 629 | size_t count, loff_t *ppos) | |||
| 630 | { | |||
| 631 | socket_t i = MINOR(F_INODE(file)->i_rdev)((F_INODE(file)->i_rdev) & ((1<<8) - 1)); | |||
| 632 | socket_info_t *s; | |||
| 633 | user_info_t *user; | |||
| 634 | ||||
| 635 | DEBUG(2, "ds_write(socket %d)\n", i)if (pc_debug>(2)) printk("<7>" "ds_write(socket %d)\n" , i); | |||
| 636 | ||||
| 637 | if ((i >= sockets) || (sockets == 0)) | |||
| 638 | return -ENODEV19; | |||
| 639 | if (count != 4) | |||
| 640 | return -EINVAL22; | |||
| 641 | if ((file->f_flags & O_ACCMODE0003) == O_RDONLY00) | |||
| 642 | return -EBADF9; | |||
| 643 | s = &socket_table[i]; | |||
| 644 | user = file->private_data; | |||
| 645 | if (CHECK_USER(user)(((user) == ((void *) 0)) || ((user)->user_magic != 0x7ea4 ))) | |||
| 646 | return -EIO5; | |||
| 647 | ||||
| 648 | if (s->req_pending) { | |||
| 649 | s->req_pending--; | |||
| 650 | get_user(s->req_result, (int *)buf); | |||
| 651 | if ((s->req_result != 0) || (s->req_pending == 0)) | |||
| 652 | wake_up_interruptiblewake_up(&s->request); | |||
| 653 | } else | |||
| 654 | return -EIO5; | |||
| 655 | ||||
| 656 | return 4; | |||
| 657 | } /* ds_write */ | |||
| 658 | ||||
| 659 | /*====================================================================*/ | |||
| 660 | ||||
| 661 | #if (LINUX_VERSION_CODE131108 < VERSION(2,1,23)(((2)<<16)+(1<<8)+23)) | |||
| 662 | ||||
| 663 | static int ds_select(struct inode *inode, struct file *file, | |||
| 664 | int sel_type, select_table *wait) | |||
| 665 | { | |||
| 666 | socket_t i = MINOR(inode->i_rdev)((inode->i_rdev) & ((1<<8) - 1)); | |||
| 667 | socket_info_t *s; | |||
| 668 | user_info_t *user; | |||
| 669 | ||||
| 670 | DEBUG(2, "ds_select(socket %d)\n", i)if (pc_debug>(2)) printk("<7>" "ds_select(socket %d)\n" , i); | |||
| 671 | ||||
| 672 | if ((i >= sockets) || (sockets == 0)) | |||
| 673 | return -ENODEV19; | |||
| 674 | s = &socket_table[i]; | |||
| 675 | user = file->private_data; | |||
| 676 | if (CHECK_USER(user)(((user) == ((void *) 0)) || ((user)->user_magic != 0x7ea4 ))) | |||
| 677 | return -EIO5; | |||
| 678 | if (sel_type != SEL_IN1) | |||
| 679 | return 0; | |||
| 680 | if (!queue_empty(user)) | |||
| 681 | return 1; | |||
| 682 | select_wait(&s->queue, wait); | |||
| 683 | return 0; | |||
| 684 | } /* ds_select */ | |||
| 685 | ||||
| 686 | #else | |||
| 687 | ||||
| 688 | static u_int ds_poll(struct file *file, poll_table *wait) | |||
| 689 | { | |||
| 690 | socket_t i = MINOR(F_INODE(file)->i_rdev)((F_INODE(file)->i_rdev) & ((1<<8) - 1)); | |||
| 691 | socket_info_t *s; | |||
| 692 | user_info_t *user; | |||
| 693 | ||||
| 694 | DEBUG(2, "ds_poll(socket %d)\n", i)if (pc_debug>(2)) printk("<7>" "ds_poll(socket %d)\n" , i); | |||
| 695 | ||||
| 696 | if ((i >= sockets) || (sockets == 0)) | |||
| 697 | return POLLERR; | |||
| 698 | s = &socket_table[i]; | |||
| 699 | user = file->private_data; | |||
| 700 | if (CHECK_USER(user)(((user) == ((void *) 0)) || ((user)->user_magic != 0x7ea4 ))) | |||
| 701 | return POLLERR; | |||
| 702 | POLL_WAIT(file, &s->queue, wait); | |||
| 703 | if (!queue_empty(user)) | |||
| 704 | return POLLIN | POLLRDNORM; | |||
| 705 | return 0; | |||
| 706 | } /* ds_poll */ | |||
| 707 | ||||
| 708 | #endif | |||
| 709 | ||||
| 710 | /*====================================================================*/ | |||
| 711 | ||||
| 712 | #endif /* !defined(MACH) */ | |||
| 713 | ||||
| 714 | static int ds_ioctl(struct inode * inode, struct file * file, | |||
| 715 | u_int cmd, u_long arg) | |||
| 716 | { | |||
| 717 | socket_t i = MINOR(inode->i_rdev)((inode->i_rdev) & ((1<<8) - 1)); | |||
| 718 | socket_info_t *s; | |||
| 719 | u_int size; | |||
| 720 | int ret, err; | |||
| 721 | ds_ioctl_arg_t buf; | |||
| 722 | ||||
| 723 | DEBUG(2, "ds_ioctl(socket %d, %#x, %#lx)\n", i, cmd, arg)if (pc_debug>(2)) printk("<7>" "ds_ioctl(socket %d, %#x, %#lx)\n" , i, cmd, arg); | |||
| 724 | ||||
| 725 | if ((i >= sockets) || (sockets == 0)) | |||
| ||||
| 726 | return -ENODEV19; | |||
| 727 | s = &socket_table[i]; | |||
| 728 | ||||
| 729 | size = (cmd & IOCSIZE_MASK(((1 << 14)-1) << ((0 +8)+8))) >> IOCSIZE_SHIFT(((0 +8)+8)); | |||
| 730 | if (size > sizeof(ds_ioctl_arg_t)) return -EINVAL22; | |||
| 731 | ||||
| 732 | /* Permission check */ | |||
| 733 | if (!(cmd & IOC_OUT(2U << (((0 +8)+8)+14))) && !capable(CAP_SYS_ADMIN)suser()) | |||
| 734 | return -EPERM1; | |||
| 735 | ||||
| 736 | #ifndef MACH1 | |||
| 737 | if (cmd & IOC_IN(1U << (((0 +8)+8)+14))) { | |||
| 738 | err = verify_area(VERIFY_READ0, (char *)arg, size); | |||
| 739 | if (err) { | |||
| 740 | DEBUG(3, "ds_ioctl(): verify_read = %d\n", err)if (pc_debug>(3)) printk("<7>" "ds_ioctl(): verify_read = %d\n" , err); | |||
| 741 | return err; | |||
| 742 | } | |||
| 743 | } | |||
| 744 | if (cmd & IOC_OUT(2U << (((0 +8)+8)+14))) { | |||
| 745 | err = verify_area(VERIFY_WRITE1, (char *)arg, size); | |||
| 746 | if (err) { | |||
| 747 | DEBUG(3, "ds_ioctl(): verify_write = %d\n", err)if (pc_debug>(3)) printk("<7>" "ds_ioctl(): verify_write = %d\n" , err); | |||
| 748 | return err; | |||
| 749 | } | |||
| 750 | } | |||
| 751 | #endif | |||
| 752 | ||||
| 753 | err = ret = 0; | |||
| 754 | ||||
| 755 | #ifndef MACH1 | |||
| 756 | if (cmd & IOC_IN(1U << (((0 +8)+8)+14))) copy_from_user((char *)&buf, (char *)arg, size); | |||
| 757 | #else | |||
| 758 | if (cmd & IOC_IN(1U << (((0 +8)+8)+14))) memcpy((char *) &buf, (char *) arg, size)(__builtin_constant_p(size) ? __constant_memcpy(((char *) & buf),((char *) arg),(size)) : __memcpy(((char *) &buf),(( char *) arg),(size))); | |||
| 759 | #endif | |||
| 760 | ||||
| 761 | switch (cmd) { | |||
| 762 | case DS_ADJUST_RESOURCE_INFO(((2U|1U) << (((0 +8)+8)+14)) | ((('d')) << (0 +8 )) | (((2)) << 0) | ((sizeof(adjust_t)) << ((0 +8 )+8))): | |||
| 763 | ret = CardServices(AdjustResourceInfo, s->handle, &buf.adjust); | |||
| 764 | break; | |||
| 765 | case DS_GET_CARD_SERVICES_INFO(((2U) << (((0 +8)+8)+14)) | ((('d')) << (0 +8)) | (((1)) << 0) | ((sizeof(servinfo_t)) << ((0 +8)+ 8))): | |||
| 766 | ret = CardServices(GetCardServicesInfo, &buf.servinfo); | |||
| 767 | break; | |||
| 768 | case DS_GET_CONFIGURATION_INFO(((2U|1U) << (((0 +8)+8)+14)) | ((('d')) << (0 +8 )) | (((3)) << 0) | ((sizeof(config_info_t)) << ( (0 +8)+8))): | |||
| 769 | ret = CardServices(GetConfigurationInfo, s->handle, &buf.config); | |||
| 770 | break; | |||
| 771 | case DS_GET_FIRST_TUPLE(((2U|1U) << (((0 +8)+8)+14)) | ((('d')) << (0 +8 )) | (((4)) << 0) | ((sizeof(tuple_t)) << ((0 +8) +8))): | |||
| 772 | ret = CardServices(GetFirstTuple, s->handle, &buf.tuple); | |||
| 773 | break; | |||
| 774 | case DS_GET_NEXT_TUPLE(((2U|1U) << (((0 +8)+8)+14)) | ((('d')) << (0 +8 )) | (((5)) << 0) | ((sizeof(tuple_t)) << ((0 +8) +8))): | |||
| 775 | ret = CardServices(GetNextTuple, s->handle, &buf.tuple); | |||
| 776 | break; | |||
| 777 | case DS_GET_TUPLE_DATA(((2U|1U) << (((0 +8)+8)+14)) | ((('d')) << (0 +8 )) | (((6)) << 0) | ((sizeof(tuple_parse_t)) << ( (0 +8)+8))): | |||
| 778 | buf.tuple.TupleData = buf.tuple_parse.data; | |||
| 779 | buf.tuple.TupleDataMax = sizeof(buf.tuple_parse.data); | |||
| 780 | ret = CardServices(GetTupleData, s->handle, &buf.tuple); | |||
| 781 | break; | |||
| 782 | case DS_PARSE_TUPLE(((2U|1U) << (((0 +8)+8)+14)) | ((('d')) << (0 +8 )) | (((7)) << 0) | ((sizeof(tuple_parse_t)) << ( (0 +8)+8))): | |||
| 783 | buf.tuple.TupleData = buf.tuple_parse.data; | |||
| 784 | ret = CardServices(ParseTuple, s->handle, &buf.tuple, | |||
| 785 | &buf.tuple_parse.parse); | |||
| 786 | break; | |||
| 787 | case DS_RESET_CARD(((0U) << (((0 +8)+8)+14)) | ((('d')) << (0 +8)) | (((8)) << 0) | ((0) << ((0 +8)+8))): | |||
| 788 | ret = CardServices(ResetCard, s->handle, NULL((void *) 0)); | |||
| 789 | break; | |||
| 790 | case DS_GET_STATUS(((2U|1U) << (((0 +8)+8)+14)) | ((('d')) << (0 +8 )) | (((9)) << 0) | ((sizeof(cs_status_t)) << ((0 +8)+8))): | |||
| 791 | ret = CardServices(GetStatus, s->handle, &buf.status); | |||
| 792 | break; | |||
| 793 | case DS_VALIDATE_CIS(((2U) << (((0 +8)+8)+14)) | ((('d')) << (0 +8)) | (((11)) << 0) | ((sizeof(cisinfo_t)) << ((0 +8)+ 8))): | |||
| 794 | ret = CardServices(ValidateCIS, s->handle, &buf.cisinfo); | |||
| 795 | break; | |||
| 796 | case DS_SUSPEND_CARD(((0U) << (((0 +8)+8)+14)) | ((('d')) << (0 +8)) | (((12)) << 0) | ((0) << ((0 +8)+8))): | |||
| 797 | ret = CardServices(SuspendCard, s->handle, NULL((void *) 0)); | |||
| 798 | break; | |||
| 799 | case DS_RESUME_CARD(((0U) << (((0 +8)+8)+14)) | ((('d')) << (0 +8)) | (((13)) << 0) | ((0) << ((0 +8)+8))): | |||
| 800 | ret = CardServices(ResumeCard, s->handle, NULL((void *) 0)); | |||
| 801 | break; | |||
| 802 | case DS_EJECT_CARD(((0U) << (((0 +8)+8)+14)) | ((('d')) << (0 +8)) | (((14)) << 0) | ((0) << ((0 +8)+8))): | |||
| 803 | ret = CardServices(EjectCard, s->handle, NULL((void *) 0)); | |||
| 804 | break; | |||
| 805 | case DS_INSERT_CARD(((0U) << (((0 +8)+8)+14)) | ((('d')) << (0 +8)) | (((15)) << 0) | ((0) << ((0 +8)+8))): | |||
| 806 | ret = CardServices(InsertCard, s->handle, NULL((void *) 0)); | |||
| 807 | break; | |||
| 808 | case DS_ACCESS_CONFIGURATION_REGISTER(((2U|1U) << (((0 +8)+8)+14)) | ((('d')) << (0 +8 )) | (((10)) << 0) | ((sizeof(conf_reg_t)) << ((0 +8)+8))): | |||
| 809 | if ((buf.conf_reg.Action == CS_WRITE2) && !capable(CAP_SYS_ADMIN)suser()) | |||
| 810 | return -EPERM1; | |||
| 811 | ret = CardServices(AccessConfigurationRegister, s->handle, | |||
| 812 | &buf.conf_reg); | |||
| 813 | break; | |||
| 814 | case DS_GET_FIRST_REGION(((2U|1U) << (((0 +8)+8)+14)) | ((('d')) << (0 +8 )) | (((16)) << 0) | ((sizeof(region_info_t)) << ( (0 +8)+8))): | |||
| 815 | ret = CardServices(GetFirstRegion, s->handle, &buf.region); | |||
| 816 | break; | |||
| 817 | case DS_GET_NEXT_REGION(((2U|1U) << (((0 +8)+8)+14)) | ((('d')) << (0 +8 )) | (((17)) << 0) | ((sizeof(region_info_t)) << ( (0 +8)+8))): | |||
| 818 | ret = CardServices(GetNextRegion, s->handle, &buf.region); | |||
| 819 | break; | |||
| 820 | case DS_GET_FIRST_WINDOW(((2U) << (((0 +8)+8)+14)) | ((('d')) << (0 +8)) | (((19)) << 0) | ((sizeof(win_info_t)) << ((0 +8) +8))): | |||
| 821 | buf.win_info.handle = (window_handle_t)s->handle; | |||
| 822 | ret = CardServices(GetFirstWindow, &buf.win_info.handle, | |||
| 823 | &buf.win_info.window); | |||
| 824 | break; | |||
| 825 | case DS_GET_NEXT_WINDOW(((2U|1U) << (((0 +8)+8)+14)) | ((('d')) << (0 +8 )) | (((20)) << 0) | ((sizeof(win_info_t)) << ((0 +8)+8))): | |||
| 826 | ret = CardServices(GetNextWindow, &buf.win_info.handle, | |||
| 827 | &buf.win_info.window); | |||
| 828 | break; | |||
| 829 | case DS_GET_MEM_PAGE(((2U|1U) << (((0 +8)+8)+14)) | ((('d')) << (0 +8 )) | (((21)) << 0) | ((sizeof(win_info_t)) << ((0 +8)+8))): | |||
| 830 | ret = CardServices(GetMemPage, buf.win_info.handle, | |||
| 831 | &buf.win_info.map); | |||
| 832 | break; | |||
| 833 | case DS_REPLACE_CIS(((2U|1U) << (((0 +8)+8)+14)) | ((('d')) << (0 +8 )) | (((18)) << 0) | ((sizeof(cisdump_t)) << ((0 + 8)+8))): | |||
| 834 | ret = CardServices(ReplaceCIS, s->handle, &buf.cisdump); | |||
| 835 | break; | |||
| 836 | case DS_BIND_REQUEST(((2U|1U) << (((0 +8)+8)+14)) | ((('d')) << (0 +8 )) | (((60)) << 0) | ((sizeof(bind_info_t)) << (( 0 +8)+8))): | |||
| 837 | if (!capable(CAP_SYS_ADMIN)suser()) return -EPERM1; | |||
| 838 | err = bind_request(i, &buf.bind_info); | |||
| 839 | break; | |||
| 840 | case DS_GET_DEVICE_INFO(((2U|1U) << (((0 +8)+8)+14)) | ((('d')) << (0 +8 )) | (((61)) << 0) | ((sizeof(bind_info_t)) << (( 0 +8)+8))): | |||
| 841 | err = get_device_info(i, &buf.bind_info, 1); | |||
| 842 | break; | |||
| 843 | case DS_GET_NEXT_DEVICE(((2U|1U) << (((0 +8)+8)+14)) | ((('d')) << (0 +8 )) | (((62)) << 0) | ((sizeof(bind_info_t)) << (( 0 +8)+8))): | |||
| 844 | err = get_device_info(i, &buf.bind_info, 0); | |||
| 845 | break; | |||
| 846 | case DS_UNBIND_REQUEST(((1U) << (((0 +8)+8)+14)) | ((('d')) << (0 +8)) | (((63)) << 0) | ((sizeof(bind_info_t)) << ((0 +8 )+8))): | |||
| 847 | err = unbind_request(i, &buf.bind_info); | |||
| 848 | break; | |||
| 849 | case DS_BIND_MTD(((2U|1U) << (((0 +8)+8)+14)) | ((('d')) << (0 +8 )) | (((64)) << 0) | ((sizeof(mtd_info_t)) << ((0 +8)+8))): | |||
| 850 | if (!capable(CAP_SYS_ADMIN)suser()) return -EPERM1; | |||
| 851 | err = bind_mtd(i, &buf.mtd_info); | |||
| 852 | break; | |||
| 853 | default: | |||
| 854 | err = -EINVAL22; | |||
| 855 | } | |||
| 856 | ||||
| 857 | if ((err == 0) && (ret != CS_SUCCESS0x00)) { | |||
| 858 | DEBUG(2, "ds_ioctl: ret = %d\n", ret)if (pc_debug>(2)) printk("<7>" "ds_ioctl: ret = %d\n" , ret); | |||
| 859 | switch (ret) { | |||
| 860 | case CS_BAD_SOCKET0x0b: case CS_NO_CARD0x14: | |||
| 861 | err = -ENODEV19; break; | |||
| 862 | case CS_BAD_ARGS0x1c: case CS_BAD_ATTRIBUTE0x02: case CS_BAD_IRQ0x06: | |||
| 863 | case CS_BAD_TUPLE0x40: | |||
| 864 | err = -EINVAL22; break; | |||
| 865 | case CS_IN_USE0x1e: | |||
| 866 | err = -EBUSY16; break; | |||
| 867 | case CS_OUT_OF_RESOURCE0x20: | |||
| 868 | err = -ENOSPC28; break; | |||
| 869 | case CS_NO_MORE_ITEMS0x1f: | |||
| 870 | err = -ENODATA61; break; | |||
| 871 | case CS_UNSUPPORTED_FUNCTION0x15: | |||
| 872 | err = -ENOSYS38; break; | |||
| 873 | default: | |||
| 874 | err = -EIO5; break; | |||
| 875 | } | |||
| 876 | } | |||
| 877 | ||||
| 878 | #ifndef MACH1 | |||
| 879 | if (cmd & IOC_OUT(2U << (((0 +8)+8)+14))) copy_to_user((char *)arg, (char *)&buf, size)memcpy_tofs((char *)arg,(char *)&buf,size); | |||
| 880 | #else | |||
| 881 | if (cmd & IOC_OUT(2U << (((0 +8)+8)+14))) memcpy((char *) arg, (char *) &buf, size)(__builtin_constant_p(size) ? __constant_memcpy(((char *) arg ),((char *) &buf),(size)) : __memcpy(((char *) arg),((char *) &buf),(size))); | |||
| 882 | #endif | |||
| 883 | ||||
| 884 | return err; | |||
| 885 | } /* ds_ioctl */ | |||
| 886 | ||||
| 887 | /*====================================================================*/ | |||
| 888 | ||||
| 889 | #ifndef MACH1 | |||
| 890 | ||||
| 891 | static struct file_operations ds_fops = { | |||
| 892 | open: ds_open, | |||
| 893 | release: ds_release, | |||
| 894 | ioctl: ds_ioctl, | |||
| 895 | read: ds_read, | |||
| 896 | write: ds_write, | |||
| 897 | #if (LINUX_VERSION_CODE131108 < VERSION(2,1,23)(((2)<<16)+(1<<8)+23)) | |||
| 898 | select: ds_select | |||
| 899 | #else | |||
| 900 | poll: ds_poll | |||
| 901 | #endif | |||
| 902 | }; | |||
| 903 | ||||
| 904 | #if (LINUX_VERSION_CODE131108 <= VERSION(2,1,17)(((2)<<16)+(1<<8)+17)) | |||
| 905 | ||||
| 906 | #undef CONFIG_MODVERSIONS | |||
| 907 | static struct symbol_table ds_symtab = { | |||
| 908 | #include <linux/symtab_begin.h> | |||
| 909 | #undef X | |||
| 910 | #define X(sym) { (void *)&sym, SYMBOL_NAME_STR(sym)"sym" } | |||
| 911 | X(register_pccard_driver), | |||
| 912 | X(unregister_pccard_driver), | |||
| 913 | #include <linux/symtab_end.h> | |||
| 914 | }; | |||
| 915 | ||||
| 916 | #else | |||
| 917 | ||||
| 918 | EXPORT_SYMBOL(register_pccard_driver); | |||
| 919 | EXPORT_SYMBOL(unregister_pccard_driver); | |||
| 920 | ||||
| 921 | #endif | |||
| 922 | ||||
| 923 | #endif /* !defined(MACH) */ | |||
| 924 | ||||
| 925 | /*====================================================================*/ | |||
| 926 | ||||
| 927 | int __init init_pcmcia_ds(void) | |||
| 928 | { | |||
| 929 | client_reg_t client_reg; | |||
| 930 | servinfo_t serv; | |||
| 931 | bind_req_t bind; | |||
| 932 | socket_info_t *s; | |||
| 933 | int i, ret; | |||
| 934 | ||||
| 935 | DEBUG(0, "%s\n", version)if (pc_debug>(0)) printk("<7>" "%s\n", version); | |||
| 936 | ||||
| 937 | CardServices(GetCardServicesInfo, &serv); | |||
| 938 | if (serv.Revision != CS_RELEASE_CODE0x3208) { | |||
| 939 | printk(KERN_NOTICE"<5>" "ds: Card Services release does not match!\n"); | |||
| 940 | return -EINVAL22; | |||
| 941 | } | |||
| 942 | if (serv.Count == 0) { | |||
| 943 | printk(KERN_NOTICE"<5>" "ds: no socket drivers loaded!\n"); | |||
| 944 | return -1; | |||
| 945 | } | |||
| 946 | ||||
| 947 | sockets = serv.Count; | |||
| 948 | socket_table = kmalloclinux_kmalloc(sockets*sizeof(socket_info_t), GFP_KERNEL0x03); | |||
| 949 | if (!socket_table) return -1; | |||
| 950 | for (i = 0, s = socket_table; i < sockets; i++, s++) { | |||
| 951 | s->state = 0; | |||
| 952 | s->user = NULL((void *) 0); | |||
| 953 | s->req_pending = 0; | |||
| 954 | init_waitqueue_head(&s->queue)*(&s->queue)=((void *) 0); | |||
| 955 | init_waitqueue_head(&s->request)*(&s->request)=((void *) 0); | |||
| 956 | s->handle = NULL((void *) 0); | |||
| 957 | init_timer(&s->removal); | |||
| 958 | s->removal.data = i; | |||
| 959 | s->removal.function = &handle_removal; | |||
| 960 | s->bind = NULL((void *) 0); | |||
| 961 | } | |||
| 962 | ||||
| 963 | /* Set up hotline to Card Services */ | |||
| 964 | client_reg.dev_info = bind.dev_info = &dev_info; | |||
| 965 | client_reg.Attributes = INFO_MASTER_CLIENT0x01; | |||
| 966 | client_reg.EventMask = | |||
| 967 | CS_EVENT_CARD_INSERTION0x000004 | CS_EVENT_CARD_REMOVAL0x000008 | | |||
| 968 | CS_EVENT_RESET_PHYSICAL0x000200 | CS_EVENT_CARD_RESET0x000400 | | |||
| 969 | CS_EVENT_EJECTION_REQUEST0x010000 | CS_EVENT_INSERTION_REQUEST0x008000 | | |||
| 970 | CS_EVENT_PM_SUSPEND0x002000 | CS_EVENT_PM_RESUME0x004000; | |||
| 971 | client_reg.event_handler = &ds_event; | |||
| 972 | client_reg.Version = 0x0210; | |||
| 973 | for (i = 0; i < sockets; i++) { | |||
| 974 | bind.Socket = i; | |||
| 975 | bind.Function = BIND_FN_ALL0xff; | |||
| 976 | ret = CardServices(BindDevice, &bind); | |||
| 977 | if (ret != CS_SUCCESS0x00) { | |||
| 978 | cs_error(NULL((void *) 0), BindDevice, ret); | |||
| 979 | break; | |||
| 980 | } | |||
| 981 | client_reg.event_callback_args.client_data = &socket_table[i]; | |||
| 982 | ret = CardServices(RegisterClient, &socket_table[i].handle, | |||
| 983 | &client_reg); | |||
| 984 | if (ret != CS_SUCCESS0x00) { | |||
| 985 | cs_error(NULL((void *) 0), RegisterClient, ret); | |||
| 986 | break; | |||
| 987 | } | |||
| 988 | } | |||
| 989 | ||||
| 990 | #ifndef MACH1 | |||
| 991 | /* Set up character device for user mode clients */ | |||
| 992 | i = register_chrdev(0, "pcmcia", &ds_fops); | |||
| 993 | if (i == -EBUSY16) | |||
| 994 | printk(KERN_NOTICE"<5>" "unable to find a free device # for " | |||
| 995 | "Driver Services\n"); | |||
| 996 | else | |||
| 997 | major_dev = i; | |||
| 998 | register_symtab(&ds_symtab); | |||
| 999 | #endif | |||
| 1000 | ||||
| 1001 | #ifdef HAS_PROC_BUS | |||
| 1002 | if (proc_pccard) | |||
| 1003 | create_proc_read_entry("drivers", 0, proc_pccard, | |||
| 1004 | proc_read_drivers, NULL((void *) 0)); | |||
| 1005 | init_status = 0; | |||
| 1006 | #endif | |||
| 1007 | return 0; | |||
| 1008 | } | |||
| 1009 | ||||
| 1010 | #ifdef MODULE | |||
| 1011 | ||||
| 1012 | int __init init_module(void) | |||
| 1013 | { | |||
| 1014 | return init_pcmcia_ds(); | |||
| 1015 | } | |||
| 1016 | ||||
| 1017 | void __exit__attribute__((__used__)) __attribute__((no_instrument_function )) cleanup_module(void) | |||
| 1018 | { | |||
| 1019 | int i; | |||
| 1020 | #ifdef HAS_PROC_BUS | |||
| 1021 | if (proc_pccard) | |||
| 1022 | remove_proc_entry("drivers", proc_pccard); | |||
| 1023 | #endif | |||
| 1024 | if (major_dev != -1) | |||
| 1025 | unregister_chrdev(major_dev, "pcmcia"); | |||
| 1026 | for (i = 0; i < sockets; i++) | |||
| 1027 | CardServices(DeregisterClient, socket_table[i].handle); | |||
| 1028 | sockets = 0; | |||
| 1029 | kfree(socket_table); | |||
| 1030 | } | |||
| 1031 | ||||
| 1032 | #endif | |||
| 1033 | ||||
| 1034 | /*====================================================================*/ | |||
| 1035 | ||||
| 1036 | /* Include the interface glue code to GNU Mach. */ | |||
| 1037 | #include "../glue/ds.c" | |||
| 1038 | ||||
| 1039 | /*====================================================================*/ |