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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 | /* * Linux Plug and Play Support * Copyright by Adam Belay <ambx1@neo.rr.com> * Copyright (C) 2008 Hewlett-Packard Development Company, L.P. * Bjorn Helgaas <bjorn.helgaas@hp.com> */ #ifndef _LINUX_PNP_H #define _LINUX_PNP_H #include <linux/device.h> #include <linux/list.h> #include <linux/errno.h> #include <linux/mod_devicetable.h> #define PNP_NAME_LEN 50 struct pnp_protocol; struct pnp_dev; /* * Resource Management */ #ifdef CONFIG_PNP struct resource *pnp_get_resource(struct pnp_dev *dev, unsigned long type, unsigned int num); #else static inline struct resource *pnp_get_resource(struct pnp_dev *dev, unsigned long type, unsigned int num) { return NULL; } #endif static inline int pnp_resource_valid(struct resource *res) { if (res) return 1; return 0; } static inline int pnp_resource_enabled(struct resource *res) { if (res && !(res->flags & IORESOURCE_DISABLED)) return 1; return 0; } static inline resource_size_t pnp_resource_len(struct resource *res) { if (res->start == 0 && res->end == 0) return 0; return resource_size(res); } static inline resource_size_t pnp_port_start(struct pnp_dev *dev, unsigned int bar) { struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar); if (pnp_resource_valid(res)) return res->start; return 0; } static inline resource_size_t pnp_port_end(struct pnp_dev *dev, unsigned int bar) { struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar); if (pnp_resource_valid(res)) return res->end; return 0; } static inline unsigned long pnp_port_flags(struct pnp_dev *dev, unsigned int bar) { struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar); if (pnp_resource_valid(res)) return res->flags; return IORESOURCE_IO | IORESOURCE_AUTO; } static inline int pnp_port_valid(struct pnp_dev *dev, unsigned int bar) { return pnp_resource_valid(pnp_get_resource(dev, IORESOURCE_IO, bar)); } static inline resource_size_t pnp_port_len(struct pnp_dev *dev, unsigned int bar) { struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar); if (pnp_resource_valid(res)) return pnp_resource_len(res); return 0; } static inline resource_size_t pnp_mem_start(struct pnp_dev *dev, unsigned int bar) { struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar); if (pnp_resource_valid(res)) return res->start; return 0; } static inline resource_size_t pnp_mem_end(struct pnp_dev *dev, unsigned int bar) { struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar); if (pnp_resource_valid(res)) return res->end; return 0; } static inline unsigned long pnp_mem_flags(struct pnp_dev *dev, unsigned int bar) { struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar); if (pnp_resource_valid(res)) return res->flags; return IORESOURCE_MEM | IORESOURCE_AUTO; } static inline int pnp_mem_valid(struct pnp_dev *dev, unsigned int bar) { return pnp_resource_valid(pnp_get_resource(dev, IORESOURCE_MEM, bar)); } static inline resource_size_t pnp_mem_len(struct pnp_dev *dev, unsigned int bar) { struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar); if (pnp_resource_valid(res)) return pnp_resource_len(res); return 0; } static inline resource_size_t pnp_irq(struct pnp_dev *dev, unsigned int bar) { struct resource *res = pnp_get_resource(dev, IORESOURCE_IRQ, bar); if (pnp_resource_valid(res)) return res->start; return -1; } static inline unsigned long pnp_irq_flags(struct pnp_dev *dev, unsigned int bar) { struct resource *res = pnp_get_resource(dev, IORESOURCE_IRQ, bar); if (pnp_resource_valid(res)) return res->flags; return IORESOURCE_IRQ | IORESOURCE_AUTO; } static inline int pnp_irq_valid(struct pnp_dev *dev, unsigned int bar) { return pnp_resource_valid(pnp_get_resource(dev, IORESOURCE_IRQ, bar)); } static inline resource_size_t pnp_dma(struct pnp_dev *dev, unsigned int bar) { struct resource *res = pnp_get_resource(dev, IORESOURCE_DMA, bar); if (pnp_resource_valid(res)) return res->start; return -1; } static inline unsigned long pnp_dma_flags(struct pnp_dev *dev, unsigned int bar) { struct resource *res = pnp_get_resource(dev, IORESOURCE_DMA, bar); if (pnp_resource_valid(res)) return res->flags; return IORESOURCE_DMA | IORESOURCE_AUTO; } static inline int pnp_dma_valid(struct pnp_dev *dev, unsigned int bar) { return pnp_resource_valid(pnp_get_resource(dev, IORESOURCE_DMA, bar)); } /* * Device Management */ struct pnp_card { struct device dev; /* Driver Model device interface */ unsigned char number; /* used as an index, must be unique */ struct list_head global_list; /* node in global list of cards */ struct list_head protocol_list; /* node in protocol's list of cards */ struct list_head devices; /* devices attached to the card */ struct pnp_protocol *protocol; struct pnp_id *id; /* contains supported EISA IDs */ char name[PNP_NAME_LEN]; /* contains a human-readable name */ unsigned char pnpver; /* Plug & Play version */ unsigned char productver; /* product version */ unsigned int serial; /* serial number */ unsigned char checksum; /* if zero - checksum passed */ struct proc_dir_entry *procdir; /* directory entry in /proc/bus/isapnp */ }; #define global_to_pnp_card(n) list_entry(n, struct pnp_card, global_list) #define protocol_to_pnp_card(n) list_entry(n, struct pnp_card, protocol_list) #define to_pnp_card(n) container_of(n, struct pnp_card, dev) #define pnp_for_each_card(card) \ for((card) = global_to_pnp_card(pnp_cards.next); \ (card) != global_to_pnp_card(&pnp_cards); \ (card) = global_to_pnp_card((card)->global_list.next)) struct pnp_card_link { struct pnp_card *card; struct pnp_card_driver *driver; void *driver_data; pm_message_t pm_state; }; static inline void *pnp_get_card_drvdata(struct pnp_card_link *pcard) { return pcard->driver_data; } static inline void pnp_set_card_drvdata(struct pnp_card_link *pcard, void *data) { pcard->driver_data = data; } struct pnp_dev { struct device dev; /* Driver Model device interface */ u64 dma_mask; unsigned int number; /* used as an index, must be unique */ int status; struct list_head global_list; /* node in global list of devices */ struct list_head protocol_list; /* node in list of device's protocol */ struct list_head card_list; /* node in card's list of devices */ struct list_head rdev_list; /* node in cards list of requested devices */ struct pnp_protocol *protocol; struct pnp_card *card; /* card the device is attached to, none if NULL */ struct pnp_driver *driver; struct pnp_card_link *card_link; struct pnp_id *id; /* supported EISA IDs */ int active; int capabilities; unsigned int num_dependent_sets; struct list_head resources; struct list_head options; char name[PNP_NAME_LEN]; /* contains a human-readable name */ int flags; /* used by protocols */ struct proc_dir_entry *procent; /* device entry in /proc/bus/isapnp */ void *data; }; #define global_to_pnp_dev(n) list_entry(n, struct pnp_dev, global_list) #define card_to_pnp_dev(n) list_entry(n, struct pnp_dev, card_list) #define protocol_to_pnp_dev(n) list_entry(n, struct pnp_dev, protocol_list) #define to_pnp_dev(n) container_of(n, struct pnp_dev, dev) #define pnp_for_each_dev(dev) \ for((dev) = global_to_pnp_dev(pnp_global.next); \ (dev) != global_to_pnp_dev(&pnp_global); \ (dev) = global_to_pnp_dev((dev)->global_list.next)) #define card_for_each_dev(card,dev) \ for((dev) = card_to_pnp_dev((card)->devices.next); \ (dev) != card_to_pnp_dev(&(card)->devices); \ (dev) = card_to_pnp_dev((dev)->card_list.next)) #define pnp_dev_name(dev) (dev)->name static inline void *pnp_get_drvdata(struct pnp_dev *pdev) { return dev_get_drvdata(&pdev->dev); } static inline void pnp_set_drvdata(struct pnp_dev *pdev, void *data) { dev_set_drvdata(&pdev->dev, data); } struct pnp_fixup { char id[7]; void (*quirk_function) (struct pnp_dev * dev); /* fixup function */ }; /* config parameters */ #define PNP_CONFIG_NORMAL 0x0001 #define PNP_CONFIG_FORCE 0x0002 /* disables validity checking */ /* capabilities */ #define PNP_READ 0x0001 #define PNP_WRITE 0x0002 #define PNP_DISABLE 0x0004 #define PNP_CONFIGURABLE 0x0008 #define PNP_REMOVABLE 0x0010 #define pnp_can_read(dev) (((dev)->protocol->get) && \ ((dev)->capabilities & PNP_READ)) #define pnp_can_write(dev) (((dev)->protocol->set) && \ ((dev)->capabilities & PNP_WRITE)) #define pnp_can_disable(dev) (((dev)->protocol->disable) && \ ((dev)->capabilities & PNP_DISABLE)) #define pnp_can_configure(dev) ((!(dev)->active) && \ ((dev)->capabilities & PNP_CONFIGURABLE)) #ifdef CONFIG_ISAPNP extern struct pnp_protocol isapnp_protocol; #define pnp_device_is_isapnp(dev) ((dev)->protocol == (&isapnp_protocol)) #else #define pnp_device_is_isapnp(dev) 0 #endif extern struct mutex pnp_res_mutex; #ifdef CONFIG_PNPBIOS extern struct pnp_protocol pnpbios_protocol; #define pnp_device_is_pnpbios(dev) ((dev)->protocol == (&pnpbios_protocol)) #else #define pnp_device_is_pnpbios(dev) 0 #endif #ifdef CONFIG_PNPACPI extern struct pnp_protocol pnpacpi_protocol; static inline struct acpi_device *pnp_acpi_device(struct pnp_dev *dev) { if (dev->protocol == &pnpacpi_protocol) return dev->data; return NULL; } #else #define pnp_acpi_device(dev) 0 #endif /* status */ #define PNP_READY 0x0000 #define PNP_ATTACHED 0x0001 #define PNP_BUSY 0x0002 #define PNP_FAULTY 0x0004 /* isapnp specific macros */ #define isapnp_card_number(dev) ((dev)->card ? (dev)->card->number : -1) #define isapnp_csn_number(dev) ((dev)->number) /* * Driver Management */ struct pnp_id { char id[PNP_ID_LEN]; struct pnp_id *next; }; struct pnp_driver { char *name; const struct pnp_device_id *id_table; unsigned int flags; int (*probe) (struct pnp_dev *dev, const struct pnp_device_id *dev_id); void (*remove) (struct pnp_dev *dev); void (*shutdown) (struct pnp_dev *dev); int (*suspend) (struct pnp_dev *dev, pm_message_t state); int (*resume) (struct pnp_dev *dev); struct device_driver driver; }; #define to_pnp_driver(drv) container_of(drv, struct pnp_driver, driver) struct pnp_card_driver { struct list_head global_list; char *name; const struct pnp_card_device_id *id_table; unsigned int flags; int (*probe) (struct pnp_card_link *card, const struct pnp_card_device_id *card_id); void (*remove) (struct pnp_card_link *card); int (*suspend) (struct pnp_card_link *card, pm_message_t state); int (*resume) (struct pnp_card_link *card); struct pnp_driver link; }; #define to_pnp_card_driver(drv) container_of(drv, struct pnp_card_driver, link) /* pnp driver flags */ #define PNP_DRIVER_RES_DO_NOT_CHANGE 0x0001 /* do not change the state of the device */ #define PNP_DRIVER_RES_DISABLE 0x0003 /* ensure the device is disabled */ /* * Protocol Management */ struct pnp_protocol { struct list_head protocol_list; char *name; /* resource control functions */ int (*get) (struct pnp_dev *dev); int (*set) (struct pnp_dev *dev); int (*disable) (struct pnp_dev *dev); /* protocol specific suspend/resume */ bool (*can_wakeup) (struct pnp_dev *dev); int (*suspend) (struct pnp_dev * dev, pm_message_t state); int (*resume) (struct pnp_dev * dev); /* used by pnp layer only (look but don't touch) */ unsigned char number; /* protocol number */ struct device dev; /* link to driver model */ struct list_head cards; struct list_head devices; }; #define to_pnp_protocol(n) list_entry(n, struct pnp_protocol, protocol_list) #define protocol_for_each_card(protocol,card) \ for((card) = protocol_to_pnp_card((protocol)->cards.next); \ (card) != protocol_to_pnp_card(&(protocol)->cards); \ (card) = protocol_to_pnp_card((card)->protocol_list.next)) #define protocol_for_each_dev(protocol,dev) \ for((dev) = protocol_to_pnp_dev((protocol)->devices.next); \ (dev) != protocol_to_pnp_dev(&(protocol)->devices); \ (dev) = protocol_to_pnp_dev((dev)->protocol_list.next)) extern struct bus_type pnp_bus_type; #if defined(CONFIG_PNP) /* device management */ int pnp_device_attach(struct pnp_dev *pnp_dev); void pnp_device_detach(struct pnp_dev *pnp_dev); extern struct list_head pnp_global; extern int pnp_platform_devices; /* multidevice card support */ struct pnp_dev *pnp_request_card_device(struct pnp_card_link *clink, const char *id, struct pnp_dev *from); void pnp_release_card_device(struct pnp_dev *dev); int pnp_register_card_driver(struct pnp_card_driver *drv); void pnp_unregister_card_driver(struct pnp_card_driver *drv); extern struct list_head pnp_cards; /* resource management */ int pnp_possible_config(struct pnp_dev *dev, int type, resource_size_t base, resource_size_t size); int pnp_auto_config_dev(struct pnp_dev *dev); int pnp_start_dev(struct pnp_dev *dev); int pnp_stop_dev(struct pnp_dev *dev); int pnp_activate_dev(struct pnp_dev *dev); int pnp_disable_dev(struct pnp_dev *dev); int pnp_range_reserved(resource_size_t start, resource_size_t end); /* protocol helpers */ int pnp_is_active(struct pnp_dev *dev); int compare_pnp_id(struct pnp_id *pos, const char *id); int pnp_register_driver(struct pnp_driver *drv); void pnp_unregister_driver(struct pnp_driver *drv); #else /* device management */ static inline int pnp_device_attach(struct pnp_dev *pnp_dev) { return -ENODEV; } static inline void pnp_device_detach(struct pnp_dev *pnp_dev) { } #define pnp_platform_devices 0 /* multidevice card support */ static inline struct pnp_dev *pnp_request_card_device(struct pnp_card_link *clink, const char *id, struct pnp_dev *from) { return NULL; } static inline void pnp_release_card_device(struct pnp_dev *dev) { } static inline int pnp_register_card_driver(struct pnp_card_driver *drv) { return -ENODEV; } static inline void pnp_unregister_card_driver(struct pnp_card_driver *drv) { } /* resource management */ static inline int pnp_possible_config(struct pnp_dev *dev, int type, resource_size_t base, resource_size_t size) { return 0; } static inline int pnp_auto_config_dev(struct pnp_dev *dev) { return -ENODEV; } static inline int pnp_start_dev(struct pnp_dev *dev) { return -ENODEV; } static inline int pnp_stop_dev(struct pnp_dev *dev) { return -ENODEV; } static inline int pnp_activate_dev(struct pnp_dev *dev) { return -ENODEV; } static inline int pnp_disable_dev(struct pnp_dev *dev) { return -ENODEV; } static inline int pnp_range_reserved(resource_size_t start, resource_size_t end) { return 0;} /* protocol helpers */ static inline int pnp_is_active(struct pnp_dev *dev) { return 0; } static inline int compare_pnp_id(struct pnp_id *pos, const char *id) { return -ENODEV; } static inline int pnp_register_driver(struct pnp_driver *drv) { return -ENODEV; } static inline void pnp_unregister_driver(struct pnp_driver *drv) { } #endif /* CONFIG_PNP */ #endif /* _LINUX_PNP_H */ |