2 * Linux Plug and Play Support
3 * Copyright by Adam Belay <ambx1@neo.rr.com>
9 #include <linux/device.h>
10 #include <linux/list.h>
11 #include <linux/errno.h>
12 #include <linux/mod_devicetable.h>
14 #define PNP_NAME_LEN 50
22 struct resource *pnp_get_resource(struct pnp_dev *, unsigned int, unsigned int);
24 static inline int pnp_resource_valid(struct resource *res)
31 static inline int pnp_resource_enabled(struct resource *res)
33 if (res && !(res->flags & IORESOURCE_DISABLED))
38 static inline resource_size_t pnp_resource_len(struct resource *res)
40 if (res->start == 0 && res->end == 0)
42 return res->end - res->start + 1;
46 static inline resource_size_t pnp_port_start(struct pnp_dev *dev,
49 struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar);
51 if (pnp_resource_valid(res))
56 static inline resource_size_t pnp_port_end(struct pnp_dev *dev,
59 struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar);
61 if (pnp_resource_valid(res))
66 static inline unsigned long pnp_port_flags(struct pnp_dev *dev,
69 struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar);
71 if (pnp_resource_valid(res))
73 return IORESOURCE_IO | IORESOURCE_AUTO;
76 static inline int pnp_port_valid(struct pnp_dev *dev, unsigned int bar)
78 return pnp_resource_valid(pnp_get_resource(dev, IORESOURCE_IO, bar));
81 static inline resource_size_t pnp_port_len(struct pnp_dev *dev,
84 struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar);
86 if (pnp_resource_valid(res))
87 return pnp_resource_len(res);
92 static inline resource_size_t pnp_mem_start(struct pnp_dev *dev,
95 struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar);
97 if (pnp_resource_valid(res))
102 static inline resource_size_t pnp_mem_end(struct pnp_dev *dev,
105 struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar);
107 if (pnp_resource_valid(res))
112 static inline unsigned long pnp_mem_flags(struct pnp_dev *dev, unsigned int bar)
114 struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar);
116 if (pnp_resource_valid(res))
118 return IORESOURCE_MEM | IORESOURCE_AUTO;
121 static inline int pnp_mem_valid(struct pnp_dev *dev, unsigned int bar)
123 return pnp_resource_valid(pnp_get_resource(dev, IORESOURCE_MEM, bar));
126 static inline resource_size_t pnp_mem_len(struct pnp_dev *dev,
129 struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar);
131 if (pnp_resource_valid(res))
132 return pnp_resource_len(res);
137 static inline resource_size_t pnp_irq(struct pnp_dev *dev, unsigned int bar)
139 struct resource *res = pnp_get_resource(dev, IORESOURCE_IRQ, bar);
141 if (pnp_resource_valid(res))
146 static inline unsigned long pnp_irq_flags(struct pnp_dev *dev, unsigned int bar)
148 struct resource *res = pnp_get_resource(dev, IORESOURCE_IRQ, bar);
150 if (pnp_resource_valid(res))
152 return IORESOURCE_IRQ | IORESOURCE_AUTO;
155 static inline int pnp_irq_valid(struct pnp_dev *dev, unsigned int bar)
157 return pnp_resource_valid(pnp_get_resource(dev, IORESOURCE_IRQ, bar));
161 static inline resource_size_t pnp_dma(struct pnp_dev *dev, unsigned int bar)
163 struct resource *res = pnp_get_resource(dev, IORESOURCE_DMA, bar);
165 if (pnp_resource_valid(res))
170 static inline unsigned long pnp_dma_flags(struct pnp_dev *dev, unsigned int bar)
172 struct resource *res = pnp_get_resource(dev, IORESOURCE_DMA, bar);
174 if (pnp_resource_valid(res))
176 return IORESOURCE_DMA | IORESOURCE_AUTO;
179 static inline int pnp_dma_valid(struct pnp_dev *dev, unsigned int bar)
181 return pnp_resource_valid(pnp_get_resource(dev, IORESOURCE_DMA, bar));
190 struct device dev; /* Driver Model device interface */
191 unsigned char number; /* used as an index, must be unique */
192 struct list_head global_list; /* node in global list of cards */
193 struct list_head protocol_list; /* node in protocol's list of cards */
194 struct list_head devices; /* devices attached to the card */
196 struct pnp_protocol *protocol;
197 struct pnp_id *id; /* contains supported EISA IDs */
199 char name[PNP_NAME_LEN]; /* contains a human-readable name */
200 unsigned char pnpver; /* Plug & Play version */
201 unsigned char productver; /* product version */
202 unsigned int serial; /* serial number */
203 unsigned char checksum; /* if zero - checksum passed */
204 struct proc_dir_entry *procdir; /* directory entry in /proc/bus/isapnp */
207 #define global_to_pnp_card(n) list_entry(n, struct pnp_card, global_list)
208 #define protocol_to_pnp_card(n) list_entry(n, struct pnp_card, protocol_list)
209 #define to_pnp_card(n) container_of(n, struct pnp_card, dev)
210 #define pnp_for_each_card(card) \
211 for((card) = global_to_pnp_card(pnp_cards.next); \
212 (card) != global_to_pnp_card(&pnp_cards); \
213 (card) = global_to_pnp_card((card)->global_list.next))
215 struct pnp_card_link {
216 struct pnp_card *card;
217 struct pnp_card_driver *driver;
219 pm_message_t pm_state;
222 static inline void *pnp_get_card_drvdata(struct pnp_card_link *pcard)
224 return pcard->driver_data;
227 static inline void pnp_set_card_drvdata(struct pnp_card_link *pcard, void *data)
229 pcard->driver_data = data;
233 struct device dev; /* Driver Model device interface */
235 unsigned int number; /* used as an index, must be unique */
238 struct list_head global_list; /* node in global list of devices */
239 struct list_head protocol_list; /* node in list of device's protocol */
240 struct list_head card_list; /* node in card's list of devices */
241 struct list_head rdev_list; /* node in cards list of requested devices */
243 struct pnp_protocol *protocol;
244 struct pnp_card *card; /* card the device is attached to, none if NULL */
245 struct pnp_driver *driver;
246 struct pnp_card_link *card_link;
248 struct pnp_id *id; /* supported EISA IDs */
252 struct pnp_option *independent;
253 struct pnp_option *dependent;
254 struct list_head resources;
256 char name[PNP_NAME_LEN]; /* contains a human-readable name */
257 int flags; /* used by protocols */
258 struct proc_dir_entry *procent; /* device entry in /proc/bus/isapnp */
262 #define global_to_pnp_dev(n) list_entry(n, struct pnp_dev, global_list)
263 #define card_to_pnp_dev(n) list_entry(n, struct pnp_dev, card_list)
264 #define protocol_to_pnp_dev(n) list_entry(n, struct pnp_dev, protocol_list)
265 #define to_pnp_dev(n) container_of(n, struct pnp_dev, dev)
266 #define pnp_for_each_dev(dev) \
267 for((dev) = global_to_pnp_dev(pnp_global.next); \
268 (dev) != global_to_pnp_dev(&pnp_global); \
269 (dev) = global_to_pnp_dev((dev)->global_list.next))
270 #define card_for_each_dev(card,dev) \
271 for((dev) = card_to_pnp_dev((card)->devices.next); \
272 (dev) != card_to_pnp_dev(&(card)->devices); \
273 (dev) = card_to_pnp_dev((dev)->card_list.next))
274 #define pnp_dev_name(dev) (dev)->name
276 static inline void *pnp_get_drvdata(struct pnp_dev *pdev)
278 return dev_get_drvdata(&pdev->dev);
281 static inline void pnp_set_drvdata(struct pnp_dev *pdev, void *data)
283 dev_set_drvdata(&pdev->dev, data);
288 void (*quirk_function) (struct pnp_dev * dev); /* fixup function */
291 /* config parameters */
292 #define PNP_CONFIG_NORMAL 0x0001
293 #define PNP_CONFIG_FORCE 0x0002 /* disables validity checking */
296 #define PNP_READ 0x0001
297 #define PNP_WRITE 0x0002
298 #define PNP_DISABLE 0x0004
299 #define PNP_CONFIGURABLE 0x0008
300 #define PNP_REMOVABLE 0x0010
302 #define pnp_can_read(dev) (((dev)->protocol->get) && \
303 ((dev)->capabilities & PNP_READ))
304 #define pnp_can_write(dev) (((dev)->protocol->set) && \
305 ((dev)->capabilities & PNP_WRITE))
306 #define pnp_can_disable(dev) (((dev)->protocol->disable) && \
307 ((dev)->capabilities & PNP_DISABLE))
308 #define pnp_can_configure(dev) ((!(dev)->active) && \
309 ((dev)->capabilities & PNP_CONFIGURABLE))
312 extern struct pnp_protocol isapnp_protocol;
313 #define pnp_device_is_isapnp(dev) ((dev)->protocol == (&isapnp_protocol))
315 #define pnp_device_is_isapnp(dev) 0
317 extern struct mutex pnp_res_mutex;
319 #ifdef CONFIG_PNPBIOS
320 extern struct pnp_protocol pnpbios_protocol;
321 #define pnp_device_is_pnpbios(dev) ((dev)->protocol == (&pnpbios_protocol))
323 #define pnp_device_is_pnpbios(dev) 0
327 #define PNP_READY 0x0000
328 #define PNP_ATTACHED 0x0001
329 #define PNP_BUSY 0x0002
330 #define PNP_FAULTY 0x0004
332 /* isapnp specific macros */
334 #define isapnp_card_number(dev) ((dev)->card ? (dev)->card->number : -1)
335 #define isapnp_csn_number(dev) ((dev)->number)
348 const struct pnp_device_id *id_table;
350 int (*probe) (struct pnp_dev *dev, const struct pnp_device_id *dev_id);
351 void (*remove) (struct pnp_dev *dev);
352 int (*suspend) (struct pnp_dev *dev, pm_message_t state);
353 int (*resume) (struct pnp_dev *dev);
354 struct device_driver driver;
357 #define to_pnp_driver(drv) container_of(drv, struct pnp_driver, driver)
359 struct pnp_card_driver {
360 struct list_head global_list;
362 const struct pnp_card_device_id *id_table;
364 int (*probe) (struct pnp_card_link *card,
365 const struct pnp_card_device_id *card_id);
366 void (*remove) (struct pnp_card_link *card);
367 int (*suspend) (struct pnp_card_link *card, pm_message_t state);
368 int (*resume) (struct pnp_card_link *card);
369 struct pnp_driver link;
372 #define to_pnp_card_driver(drv) container_of(drv, struct pnp_card_driver, link)
374 /* pnp driver flags */
375 #define PNP_DRIVER_RES_DO_NOT_CHANGE 0x0001 /* do not change the state of the device */
376 #define PNP_DRIVER_RES_DISABLE 0x0003 /* ensure the device is disabled */
379 * Protocol Management
382 struct pnp_protocol {
383 struct list_head protocol_list;
386 /* resource control functions */
387 int (*get) (struct pnp_dev *dev);
388 int (*set) (struct pnp_dev *dev);
389 int (*disable) (struct pnp_dev *dev);
391 /* protocol specific suspend/resume */
392 int (*suspend) (struct pnp_dev * dev, pm_message_t state);
393 int (*resume) (struct pnp_dev * dev);
395 /* used by pnp layer only (look but don't touch) */
396 unsigned char number; /* protocol number */
397 struct device dev; /* link to driver model */
398 struct list_head cards;
399 struct list_head devices;
402 #define to_pnp_protocol(n) list_entry(n, struct pnp_protocol, protocol_list)
403 #define protocol_for_each_card(protocol,card) \
404 for((card) = protocol_to_pnp_card((protocol)->cards.next); \
405 (card) != protocol_to_pnp_card(&(protocol)->cards); \
406 (card) = protocol_to_pnp_card((card)->protocol_list.next))
407 #define protocol_for_each_dev(protocol,dev) \
408 for((dev) = protocol_to_pnp_dev((protocol)->devices.next); \
409 (dev) != protocol_to_pnp_dev(&(protocol)->devices); \
410 (dev) = protocol_to_pnp_dev((dev)->protocol_list.next))
412 extern struct bus_type pnp_bus_type;
414 #if defined(CONFIG_PNP)
416 /* device management */
417 int pnp_device_attach(struct pnp_dev *pnp_dev);
418 void pnp_device_detach(struct pnp_dev *pnp_dev);
419 extern struct list_head pnp_global;
420 extern int pnp_platform_devices;
422 /* multidevice card support */
423 struct pnp_dev *pnp_request_card_device(struct pnp_card_link *clink,
424 const char *id, struct pnp_dev *from);
425 void pnp_release_card_device(struct pnp_dev *dev);
426 int pnp_register_card_driver(struct pnp_card_driver *drv);
427 void pnp_unregister_card_driver(struct pnp_card_driver *drv);
428 extern struct list_head pnp_cards;
430 /* resource management */
431 int pnp_possible_config(struct pnp_dev *dev, int type, resource_size_t base,
432 resource_size_t size);
433 int pnp_auto_config_dev(struct pnp_dev *dev);
434 int pnp_start_dev(struct pnp_dev *dev);
435 int pnp_stop_dev(struct pnp_dev *dev);
436 int pnp_activate_dev(struct pnp_dev *dev);
437 int pnp_disable_dev(struct pnp_dev *dev);
439 /* protocol helpers */
440 int pnp_is_active(struct pnp_dev *dev);
441 int compare_pnp_id(struct pnp_id *pos, const char *id);
442 int pnp_register_driver(struct pnp_driver *drv);
443 void pnp_unregister_driver(struct pnp_driver *drv);
447 /* device management */
448 static inline int pnp_device_attach(struct pnp_dev *pnp_dev) { return -ENODEV; }
449 static inline void pnp_device_detach(struct pnp_dev *pnp_dev) { }
451 #define pnp_platform_devices 0
453 /* multidevice card support */
454 static inline struct pnp_dev *pnp_request_card_device(struct pnp_card_link *clink, const char *id, struct pnp_dev *from) { return NULL; }
455 static inline void pnp_release_card_device(struct pnp_dev *dev) { }
456 static inline int pnp_register_card_driver(struct pnp_card_driver *drv) { return -ENODEV; }
457 static inline void pnp_unregister_card_driver(struct pnp_card_driver *drv) { }
459 /* resource management */
460 static inline int pnp_possible_config(struct pnp_dev *dev, int type,
461 resource_size_t base,
462 resource_size_t size) { return 0; }
463 static inline int pnp_auto_config_dev(struct pnp_dev *dev) { return -ENODEV; }
464 static inline int pnp_start_dev(struct pnp_dev *dev) { return -ENODEV; }
465 static inline int pnp_stop_dev(struct pnp_dev *dev) { return -ENODEV; }
466 static inline int pnp_activate_dev(struct pnp_dev *dev) { return -ENODEV; }
467 static inline int pnp_disable_dev(struct pnp_dev *dev) { return -ENODEV; }
469 /* protocol helpers */
470 static inline int pnp_is_active(struct pnp_dev *dev) { return 0; }
471 static inline int compare_pnp_id(struct pnp_id *pos, const char *id) { return -ENODEV; }
472 static inline int pnp_register_driver(struct pnp_driver *drv) { return -ENODEV; }
473 static inline void pnp_unregister_driver(struct pnp_driver *drv) { }
475 #endif /* CONFIG_PNP */
477 #define pnp_err(format, arg...) printk(KERN_ERR "pnp: " format "\n" , ## arg)
478 #define pnp_info(format, arg...) printk(KERN_INFO "pnp: " format "\n" , ## arg)
479 #define pnp_warn(format, arg...) printk(KERN_WARNING "pnp: " format "\n" , ## arg)
481 #ifdef CONFIG_PNP_DEBUG
482 #define pnp_dbg(format, arg...) printk(KERN_DEBUG "pnp: " format "\n" , ## arg)
484 #define pnp_dbg(format, arg...) do {} while (0)
487 #endif /* _LINUX_PNP_H */