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));
186 unsigned short min; /* min base number */
187 unsigned short max; /* max base number */
188 unsigned char align; /* align boundary */
189 unsigned char size; /* size of range */
190 unsigned char flags; /* port flags */
191 unsigned char pad; /* pad */
192 struct pnp_port *next; /* next port */
195 #define PNP_IRQ_NR 256
197 DECLARE_BITMAP(map, PNP_IRQ_NR); /* bitmask for IRQ lines */
198 unsigned char flags; /* IRQ flags */
199 unsigned char pad; /* pad */
200 struct pnp_irq *next; /* next IRQ */
204 unsigned char map; /* bitmask for DMA channels */
205 unsigned char flags; /* DMA flags */
206 struct pnp_dma *next; /* next port */
210 unsigned int min; /* min base number */
211 unsigned int max; /* max base number */
212 unsigned int align; /* align boundary */
213 unsigned int size; /* size of range */
214 unsigned char flags; /* memory flags */
215 unsigned char pad; /* pad */
216 struct pnp_mem *next; /* next memory resource */
219 #define PNP_RES_PRIORITY_PREFERRED 0
220 #define PNP_RES_PRIORITY_ACCEPTABLE 1
221 #define PNP_RES_PRIORITY_FUNCTIONAL 2
222 #define PNP_RES_PRIORITY_INVALID 65535
225 unsigned short priority; /* priority */
226 struct pnp_port *port; /* first port */
227 struct pnp_irq *irq; /* first IRQ */
228 struct pnp_dma *dma; /* first DMA */
229 struct pnp_mem *mem; /* first memory resource */
230 struct pnp_option *next; /* used to chain dependent resources */
238 struct device dev; /* Driver Model device interface */
239 unsigned char number; /* used as an index, must be unique */
240 struct list_head global_list; /* node in global list of cards */
241 struct list_head protocol_list; /* node in protocol's list of cards */
242 struct list_head devices; /* devices attached to the card */
244 struct pnp_protocol *protocol;
245 struct pnp_id *id; /* contains supported EISA IDs */
247 char name[PNP_NAME_LEN]; /* contains a human-readable name */
248 unsigned char pnpver; /* Plug & Play version */
249 unsigned char productver; /* product version */
250 unsigned int serial; /* serial number */
251 unsigned char checksum; /* if zero - checksum passed */
252 struct proc_dir_entry *procdir; /* directory entry in /proc/bus/isapnp */
255 #define global_to_pnp_card(n) list_entry(n, struct pnp_card, global_list)
256 #define protocol_to_pnp_card(n) list_entry(n, struct pnp_card, protocol_list)
257 #define to_pnp_card(n) container_of(n, struct pnp_card, dev)
258 #define pnp_for_each_card(card) \
259 for((card) = global_to_pnp_card(pnp_cards.next); \
260 (card) != global_to_pnp_card(&pnp_cards); \
261 (card) = global_to_pnp_card((card)->global_list.next))
263 struct pnp_card_link {
264 struct pnp_card *card;
265 struct pnp_card_driver *driver;
267 pm_message_t pm_state;
270 static inline void *pnp_get_card_drvdata(struct pnp_card_link *pcard)
272 return pcard->driver_data;
275 static inline void pnp_set_card_drvdata(struct pnp_card_link *pcard, void *data)
277 pcard->driver_data = data;
281 struct device dev; /* Driver Model device interface */
283 unsigned int number; /* used as an index, must be unique */
286 struct list_head global_list; /* node in global list of devices */
287 struct list_head protocol_list; /* node in list of device's protocol */
288 struct list_head card_list; /* node in card's list of devices */
289 struct list_head rdev_list; /* node in cards list of requested devices */
291 struct pnp_protocol *protocol;
292 struct pnp_card *card; /* card the device is attached to, none if NULL */
293 struct pnp_driver *driver;
294 struct pnp_card_link *card_link;
296 struct pnp_id *id; /* supported EISA IDs */
300 struct pnp_option *independent;
301 struct pnp_option *dependent;
302 struct list_head resources;
304 char name[PNP_NAME_LEN]; /* contains a human-readable name */
305 int flags; /* used by protocols */
306 struct proc_dir_entry *procent; /* device entry in /proc/bus/isapnp */
310 #define global_to_pnp_dev(n) list_entry(n, struct pnp_dev, global_list)
311 #define card_to_pnp_dev(n) list_entry(n, struct pnp_dev, card_list)
312 #define protocol_to_pnp_dev(n) list_entry(n, struct pnp_dev, protocol_list)
313 #define to_pnp_dev(n) container_of(n, struct pnp_dev, dev)
314 #define pnp_for_each_dev(dev) \
315 for((dev) = global_to_pnp_dev(pnp_global.next); \
316 (dev) != global_to_pnp_dev(&pnp_global); \
317 (dev) = global_to_pnp_dev((dev)->global_list.next))
318 #define card_for_each_dev(card,dev) \
319 for((dev) = card_to_pnp_dev((card)->devices.next); \
320 (dev) != card_to_pnp_dev(&(card)->devices); \
321 (dev) = card_to_pnp_dev((dev)->card_list.next))
322 #define pnp_dev_name(dev) (dev)->name
324 static inline void *pnp_get_drvdata(struct pnp_dev *pdev)
326 return dev_get_drvdata(&pdev->dev);
329 static inline void pnp_set_drvdata(struct pnp_dev *pdev, void *data)
331 dev_set_drvdata(&pdev->dev, data);
336 void (*quirk_function) (struct pnp_dev * dev); /* fixup function */
339 /* config parameters */
340 #define PNP_CONFIG_NORMAL 0x0001
341 #define PNP_CONFIG_FORCE 0x0002 /* disables validity checking */
344 #define PNP_READ 0x0001
345 #define PNP_WRITE 0x0002
346 #define PNP_DISABLE 0x0004
347 #define PNP_CONFIGURABLE 0x0008
348 #define PNP_REMOVABLE 0x0010
350 #define pnp_can_read(dev) (((dev)->protocol->get) && \
351 ((dev)->capabilities & PNP_READ))
352 #define pnp_can_write(dev) (((dev)->protocol->set) && \
353 ((dev)->capabilities & PNP_WRITE))
354 #define pnp_can_disable(dev) (((dev)->protocol->disable) && \
355 ((dev)->capabilities & PNP_DISABLE))
356 #define pnp_can_configure(dev) ((!(dev)->active) && \
357 ((dev)->capabilities & PNP_CONFIGURABLE))
360 extern struct pnp_protocol isapnp_protocol;
361 #define pnp_device_is_isapnp(dev) ((dev)->protocol == (&isapnp_protocol))
363 #define pnp_device_is_isapnp(dev) 0
365 extern struct mutex pnp_res_mutex;
367 #ifdef CONFIG_PNPBIOS
368 extern struct pnp_protocol pnpbios_protocol;
369 #define pnp_device_is_pnpbios(dev) ((dev)->protocol == (&pnpbios_protocol))
371 #define pnp_device_is_pnpbios(dev) 0
375 #define PNP_READY 0x0000
376 #define PNP_ATTACHED 0x0001
377 #define PNP_BUSY 0x0002
378 #define PNP_FAULTY 0x0004
380 /* isapnp specific macros */
382 #define isapnp_card_number(dev) ((dev)->card ? (dev)->card->number : -1)
383 #define isapnp_csn_number(dev) ((dev)->number)
396 const struct pnp_device_id *id_table;
398 int (*probe) (struct pnp_dev *dev, const struct pnp_device_id *dev_id);
399 void (*remove) (struct pnp_dev *dev);
400 int (*suspend) (struct pnp_dev *dev, pm_message_t state);
401 int (*resume) (struct pnp_dev *dev);
402 struct device_driver driver;
405 #define to_pnp_driver(drv) container_of(drv, struct pnp_driver, driver)
407 struct pnp_card_driver {
408 struct list_head global_list;
410 const struct pnp_card_device_id *id_table;
412 int (*probe) (struct pnp_card_link *card,
413 const struct pnp_card_device_id *card_id);
414 void (*remove) (struct pnp_card_link *card);
415 int (*suspend) (struct pnp_card_link *card, pm_message_t state);
416 int (*resume) (struct pnp_card_link *card);
417 struct pnp_driver link;
420 #define to_pnp_card_driver(drv) container_of(drv, struct pnp_card_driver, link)
422 /* pnp driver flags */
423 #define PNP_DRIVER_RES_DO_NOT_CHANGE 0x0001 /* do not change the state of the device */
424 #define PNP_DRIVER_RES_DISABLE 0x0003 /* ensure the device is disabled */
427 * Protocol Management
430 struct pnp_protocol {
431 struct list_head protocol_list;
434 /* resource control functions */
435 int (*get) (struct pnp_dev *dev);
436 int (*set) (struct pnp_dev *dev);
437 int (*disable) (struct pnp_dev *dev);
439 /* protocol specific suspend/resume */
440 int (*suspend) (struct pnp_dev * dev, pm_message_t state);
441 int (*resume) (struct pnp_dev * dev);
443 /* used by pnp layer only (look but don't touch) */
444 unsigned char number; /* protocol number */
445 struct device dev; /* link to driver model */
446 struct list_head cards;
447 struct list_head devices;
450 #define to_pnp_protocol(n) list_entry(n, struct pnp_protocol, protocol_list)
451 #define protocol_for_each_card(protocol,card) \
452 for((card) = protocol_to_pnp_card((protocol)->cards.next); \
453 (card) != protocol_to_pnp_card(&(protocol)->cards); \
454 (card) = protocol_to_pnp_card((card)->protocol_list.next))
455 #define protocol_for_each_dev(protocol,dev) \
456 for((dev) = protocol_to_pnp_dev((protocol)->devices.next); \
457 (dev) != protocol_to_pnp_dev(&(protocol)->devices); \
458 (dev) = protocol_to_pnp_dev((dev)->protocol_list.next))
460 extern struct bus_type pnp_bus_type;
462 #if defined(CONFIG_PNP)
464 /* device management */
465 int pnp_device_attach(struct pnp_dev *pnp_dev);
466 void pnp_device_detach(struct pnp_dev *pnp_dev);
467 extern struct list_head pnp_global;
468 extern int pnp_platform_devices;
470 /* multidevice card support */
471 struct pnp_dev *pnp_request_card_device(struct pnp_card_link *clink,
472 const char *id, struct pnp_dev *from);
473 void pnp_release_card_device(struct pnp_dev *dev);
474 int pnp_register_card_driver(struct pnp_card_driver *drv);
475 void pnp_unregister_card_driver(struct pnp_card_driver *drv);
476 extern struct list_head pnp_cards;
478 /* resource management */
479 int pnp_possible_config(struct pnp_dev *dev, int type, resource_size_t base,
480 resource_size_t size);
481 int pnp_auto_config_dev(struct pnp_dev *dev);
482 int pnp_start_dev(struct pnp_dev *dev);
483 int pnp_stop_dev(struct pnp_dev *dev);
484 int pnp_activate_dev(struct pnp_dev *dev);
485 int pnp_disable_dev(struct pnp_dev *dev);
487 /* protocol helpers */
488 int pnp_is_active(struct pnp_dev *dev);
489 int compare_pnp_id(struct pnp_id *pos, const char *id);
490 int pnp_register_driver(struct pnp_driver *drv);
491 void pnp_unregister_driver(struct pnp_driver *drv);
495 /* device management */
496 static inline int pnp_device_attach(struct pnp_dev *pnp_dev) { return -ENODEV; }
497 static inline void pnp_device_detach(struct pnp_dev *pnp_dev) { }
499 #define pnp_platform_devices 0
501 /* multidevice card support */
502 static inline struct pnp_dev *pnp_request_card_device(struct pnp_card_link *clink, const char *id, struct pnp_dev *from) { return NULL; }
503 static inline void pnp_release_card_device(struct pnp_dev *dev) { }
504 static inline int pnp_register_card_driver(struct pnp_card_driver *drv) { return -ENODEV; }
505 static inline void pnp_unregister_card_driver(struct pnp_card_driver *drv) { }
507 /* resource management */
508 static inline int pnp_possible_config(struct pnp_dev *dev, int type,
509 resource_size_t base,
510 resource_size_t size) { return 0; }
511 static inline int pnp_auto_config_dev(struct pnp_dev *dev) { return -ENODEV; }
512 static inline int pnp_start_dev(struct pnp_dev *dev) { return -ENODEV; }
513 static inline int pnp_stop_dev(struct pnp_dev *dev) { return -ENODEV; }
514 static inline int pnp_activate_dev(struct pnp_dev *dev) { return -ENODEV; }
515 static inline int pnp_disable_dev(struct pnp_dev *dev) { return -ENODEV; }
517 /* protocol helpers */
518 static inline int pnp_is_active(struct pnp_dev *dev) { return 0; }
519 static inline int compare_pnp_id(struct pnp_id *pos, const char *id) { return -ENODEV; }
520 static inline int pnp_register_driver(struct pnp_driver *drv) { return -ENODEV; }
521 static inline void pnp_unregister_driver(struct pnp_driver *drv) { }
523 #endif /* CONFIG_PNP */
525 #define pnp_err(format, arg...) printk(KERN_ERR "pnp: " format "\n" , ## arg)
526 #define pnp_info(format, arg...) printk(KERN_INFO "pnp: " format "\n" , ## arg)
527 #define pnp_warn(format, arg...) printk(KERN_WARNING "pnp: " format "\n" , ## arg)
529 #ifdef CONFIG_PNP_DEBUG
530 #define pnp_dbg(format, arg...) printk(KERN_DEBUG "pnp: " format "\n" , ## arg)
532 #define pnp_dbg(format, arg...) do {} while (0)
535 #endif /* _LINUX_PNP_H */