2 * Linux Plug and Play Support
3 * Copyright by Adam Belay <ambx1@neo.rr.com>
4 * Copyright (C) 2008 Hewlett-Packard Development Company, L.P.
5 * Bjorn Helgaas <bjorn.helgaas@hp.com>
11 #include <linux/device.h>
12 #include <linux/list.h>
13 #include <linux/errno.h>
14 #include <linux/mod_devicetable.h>
16 #define PNP_NAME_LEN 50
24 struct resource *pnp_get_resource(struct pnp_dev *, unsigned int, unsigned int);
26 static inline int pnp_resource_valid(struct resource *res)
33 static inline int pnp_resource_enabled(struct resource *res)
35 if (res && !(res->flags & IORESOURCE_DISABLED))
40 static inline resource_size_t pnp_resource_len(struct resource *res)
42 if (res->start == 0 && res->end == 0)
44 return res->end - res->start + 1;
48 static inline resource_size_t pnp_port_start(struct pnp_dev *dev,
51 struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar);
53 if (pnp_resource_valid(res))
58 static inline resource_size_t pnp_port_end(struct pnp_dev *dev,
61 struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar);
63 if (pnp_resource_valid(res))
68 static inline unsigned long pnp_port_flags(struct pnp_dev *dev,
71 struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar);
73 if (pnp_resource_valid(res))
75 return IORESOURCE_IO | IORESOURCE_AUTO;
78 static inline int pnp_port_valid(struct pnp_dev *dev, unsigned int bar)
80 return pnp_resource_valid(pnp_get_resource(dev, IORESOURCE_IO, bar));
83 static inline resource_size_t pnp_port_len(struct pnp_dev *dev,
86 struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar);
88 if (pnp_resource_valid(res))
89 return pnp_resource_len(res);
94 static inline resource_size_t pnp_mem_start(struct pnp_dev *dev,
97 struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar);
99 if (pnp_resource_valid(res))
104 static inline resource_size_t pnp_mem_end(struct pnp_dev *dev,
107 struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar);
109 if (pnp_resource_valid(res))
114 static inline unsigned long pnp_mem_flags(struct pnp_dev *dev, unsigned int bar)
116 struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar);
118 if (pnp_resource_valid(res))
120 return IORESOURCE_MEM | IORESOURCE_AUTO;
123 static inline int pnp_mem_valid(struct pnp_dev *dev, unsigned int bar)
125 return pnp_resource_valid(pnp_get_resource(dev, IORESOURCE_MEM, bar));
128 static inline resource_size_t pnp_mem_len(struct pnp_dev *dev,
131 struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar);
133 if (pnp_resource_valid(res))
134 return pnp_resource_len(res);
139 static inline resource_size_t pnp_irq(struct pnp_dev *dev, unsigned int bar)
141 struct resource *res = pnp_get_resource(dev, IORESOURCE_IRQ, bar);
143 if (pnp_resource_valid(res))
148 static inline unsigned long pnp_irq_flags(struct pnp_dev *dev, unsigned int bar)
150 struct resource *res = pnp_get_resource(dev, IORESOURCE_IRQ, bar);
152 if (pnp_resource_valid(res))
154 return IORESOURCE_IRQ | IORESOURCE_AUTO;
157 static inline int pnp_irq_valid(struct pnp_dev *dev, unsigned int bar)
159 return pnp_resource_valid(pnp_get_resource(dev, IORESOURCE_IRQ, bar));
163 static inline resource_size_t pnp_dma(struct pnp_dev *dev, unsigned int bar)
165 struct resource *res = pnp_get_resource(dev, IORESOURCE_DMA, bar);
167 if (pnp_resource_valid(res))
172 static inline unsigned long pnp_dma_flags(struct pnp_dev *dev, unsigned int bar)
174 struct resource *res = pnp_get_resource(dev, IORESOURCE_DMA, bar);
176 if (pnp_resource_valid(res))
178 return IORESOURCE_DMA | IORESOURCE_AUTO;
181 static inline int pnp_dma_valid(struct pnp_dev *dev, unsigned int bar)
183 return pnp_resource_valid(pnp_get_resource(dev, IORESOURCE_DMA, bar));
192 struct device dev; /* Driver Model device interface */
193 unsigned char number; /* used as an index, must be unique */
194 struct list_head global_list; /* node in global list of cards */
195 struct list_head protocol_list; /* node in protocol's list of cards */
196 struct list_head devices; /* devices attached to the card */
198 struct pnp_protocol *protocol;
199 struct pnp_id *id; /* contains supported EISA IDs */
201 char name[PNP_NAME_LEN]; /* contains a human-readable name */
202 unsigned char pnpver; /* Plug & Play version */
203 unsigned char productver; /* product version */
204 unsigned int serial; /* serial number */
205 unsigned char checksum; /* if zero - checksum passed */
206 struct proc_dir_entry *procdir; /* directory entry in /proc/bus/isapnp */
209 #define global_to_pnp_card(n) list_entry(n, struct pnp_card, global_list)
210 #define protocol_to_pnp_card(n) list_entry(n, struct pnp_card, protocol_list)
211 #define to_pnp_card(n) container_of(n, struct pnp_card, dev)
212 #define pnp_for_each_card(card) \
213 for((card) = global_to_pnp_card(pnp_cards.next); \
214 (card) != global_to_pnp_card(&pnp_cards); \
215 (card) = global_to_pnp_card((card)->global_list.next))
217 struct pnp_card_link {
218 struct pnp_card *card;
219 struct pnp_card_driver *driver;
221 pm_message_t pm_state;
224 static inline void *pnp_get_card_drvdata(struct pnp_card_link *pcard)
226 return pcard->driver_data;
229 static inline void pnp_set_card_drvdata(struct pnp_card_link *pcard, void *data)
231 pcard->driver_data = data;
235 struct device dev; /* Driver Model device interface */
237 unsigned int number; /* used as an index, must be unique */
240 struct list_head global_list; /* node in global list of devices */
241 struct list_head protocol_list; /* node in list of device's protocol */
242 struct list_head card_list; /* node in card's list of devices */
243 struct list_head rdev_list; /* node in cards list of requested devices */
245 struct pnp_protocol *protocol;
246 struct pnp_card *card; /* card the device is attached to, none if NULL */
247 struct pnp_driver *driver;
248 struct pnp_card_link *card_link;
250 struct pnp_id *id; /* supported EISA IDs */
254 unsigned int num_dependent_sets;
255 struct list_head resources;
256 struct list_head options;
258 char name[PNP_NAME_LEN]; /* contains a human-readable name */
259 int flags; /* used by protocols */
260 struct proc_dir_entry *procent; /* device entry in /proc/bus/isapnp */
264 #define global_to_pnp_dev(n) list_entry(n, struct pnp_dev, global_list)
265 #define card_to_pnp_dev(n) list_entry(n, struct pnp_dev, card_list)
266 #define protocol_to_pnp_dev(n) list_entry(n, struct pnp_dev, protocol_list)
267 #define to_pnp_dev(n) container_of(n, struct pnp_dev, dev)
268 #define pnp_for_each_dev(dev) \
269 for((dev) = global_to_pnp_dev(pnp_global.next); \
270 (dev) != global_to_pnp_dev(&pnp_global); \
271 (dev) = global_to_pnp_dev((dev)->global_list.next))
272 #define card_for_each_dev(card,dev) \
273 for((dev) = card_to_pnp_dev((card)->devices.next); \
274 (dev) != card_to_pnp_dev(&(card)->devices); \
275 (dev) = card_to_pnp_dev((dev)->card_list.next))
276 #define pnp_dev_name(dev) (dev)->name
278 static inline void *pnp_get_drvdata(struct pnp_dev *pdev)
280 return dev_get_drvdata(&pdev->dev);
283 static inline void pnp_set_drvdata(struct pnp_dev *pdev, void *data)
285 dev_set_drvdata(&pdev->dev, data);
290 void (*quirk_function) (struct pnp_dev * dev); /* fixup function */
293 /* config parameters */
294 #define PNP_CONFIG_NORMAL 0x0001
295 #define PNP_CONFIG_FORCE 0x0002 /* disables validity checking */
298 #define PNP_READ 0x0001
299 #define PNP_WRITE 0x0002
300 #define PNP_DISABLE 0x0004
301 #define PNP_CONFIGURABLE 0x0008
302 #define PNP_REMOVABLE 0x0010
304 #define pnp_can_read(dev) (((dev)->protocol->get) && \
305 ((dev)->capabilities & PNP_READ))
306 #define pnp_can_write(dev) (((dev)->protocol->set) && \
307 ((dev)->capabilities & PNP_WRITE))
308 #define pnp_can_disable(dev) (((dev)->protocol->disable) && \
309 ((dev)->capabilities & PNP_DISABLE))
310 #define pnp_can_configure(dev) ((!(dev)->active) && \
311 ((dev)->capabilities & PNP_CONFIGURABLE))
314 extern struct pnp_protocol isapnp_protocol;
315 #define pnp_device_is_isapnp(dev) ((dev)->protocol == (&isapnp_protocol))
317 #define pnp_device_is_isapnp(dev) 0
319 extern struct mutex pnp_res_mutex;
321 #ifdef CONFIG_PNPBIOS
322 extern struct pnp_protocol pnpbios_protocol;
323 #define pnp_device_is_pnpbios(dev) ((dev)->protocol == (&pnpbios_protocol))
325 #define pnp_device_is_pnpbios(dev) 0
329 #define PNP_READY 0x0000
330 #define PNP_ATTACHED 0x0001
331 #define PNP_BUSY 0x0002
332 #define PNP_FAULTY 0x0004
334 /* isapnp specific macros */
336 #define isapnp_card_number(dev) ((dev)->card ? (dev)->card->number : -1)
337 #define isapnp_csn_number(dev) ((dev)->number)
350 const struct pnp_device_id *id_table;
352 int (*probe) (struct pnp_dev *dev, const struct pnp_device_id *dev_id);
353 void (*remove) (struct pnp_dev *dev);
354 int (*suspend) (struct pnp_dev *dev, pm_message_t state);
355 int (*resume) (struct pnp_dev *dev);
356 struct device_driver driver;
359 #define to_pnp_driver(drv) container_of(drv, struct pnp_driver, driver)
361 struct pnp_card_driver {
362 struct list_head global_list;
364 const struct pnp_card_device_id *id_table;
366 int (*probe) (struct pnp_card_link *card,
367 const struct pnp_card_device_id *card_id);
368 void (*remove) (struct pnp_card_link *card);
369 int (*suspend) (struct pnp_card_link *card, pm_message_t state);
370 int (*resume) (struct pnp_card_link *card);
371 struct pnp_driver link;
374 #define to_pnp_card_driver(drv) container_of(drv, struct pnp_card_driver, link)
376 /* pnp driver flags */
377 #define PNP_DRIVER_RES_DO_NOT_CHANGE 0x0001 /* do not change the state of the device */
378 #define PNP_DRIVER_RES_DISABLE 0x0003 /* ensure the device is disabled */
381 * Protocol Management
384 struct pnp_protocol {
385 struct list_head protocol_list;
388 /* resource control functions */
389 int (*get) (struct pnp_dev *dev);
390 int (*set) (struct pnp_dev *dev);
391 int (*disable) (struct pnp_dev *dev);
393 /* protocol specific suspend/resume */
394 int (*suspend) (struct pnp_dev * dev, pm_message_t state);
395 int (*resume) (struct pnp_dev * dev);
397 /* used by pnp layer only (look but don't touch) */
398 unsigned char number; /* protocol number */
399 struct device dev; /* link to driver model */
400 struct list_head cards;
401 struct list_head devices;
404 #define to_pnp_protocol(n) list_entry(n, struct pnp_protocol, protocol_list)
405 #define protocol_for_each_card(protocol,card) \
406 for((card) = protocol_to_pnp_card((protocol)->cards.next); \
407 (card) != protocol_to_pnp_card(&(protocol)->cards); \
408 (card) = protocol_to_pnp_card((card)->protocol_list.next))
409 #define protocol_for_each_dev(protocol,dev) \
410 for((dev) = protocol_to_pnp_dev((protocol)->devices.next); \
411 (dev) != protocol_to_pnp_dev(&(protocol)->devices); \
412 (dev) = protocol_to_pnp_dev((dev)->protocol_list.next))
414 extern struct bus_type pnp_bus_type;
416 #if defined(CONFIG_PNP)
418 /* device management */
419 int pnp_device_attach(struct pnp_dev *pnp_dev);
420 void pnp_device_detach(struct pnp_dev *pnp_dev);
421 extern struct list_head pnp_global;
422 extern int pnp_platform_devices;
424 /* multidevice card support */
425 struct pnp_dev *pnp_request_card_device(struct pnp_card_link *clink,
426 const char *id, struct pnp_dev *from);
427 void pnp_release_card_device(struct pnp_dev *dev);
428 int pnp_register_card_driver(struct pnp_card_driver *drv);
429 void pnp_unregister_card_driver(struct pnp_card_driver *drv);
430 extern struct list_head pnp_cards;
432 /* resource management */
433 int pnp_possible_config(struct pnp_dev *dev, int type, resource_size_t base,
434 resource_size_t size);
435 int pnp_auto_config_dev(struct pnp_dev *dev);
436 int pnp_start_dev(struct pnp_dev *dev);
437 int pnp_stop_dev(struct pnp_dev *dev);
438 int pnp_activate_dev(struct pnp_dev *dev);
439 int pnp_disable_dev(struct pnp_dev *dev);
441 /* protocol helpers */
442 int pnp_is_active(struct pnp_dev *dev);
443 int compare_pnp_id(struct pnp_id *pos, const char *id);
444 int pnp_register_driver(struct pnp_driver *drv);
445 void pnp_unregister_driver(struct pnp_driver *drv);
449 /* device management */
450 static inline int pnp_device_attach(struct pnp_dev *pnp_dev) { return -ENODEV; }
451 static inline void pnp_device_detach(struct pnp_dev *pnp_dev) { }
453 #define pnp_platform_devices 0
455 /* multidevice card support */
456 static inline struct pnp_dev *pnp_request_card_device(struct pnp_card_link *clink, const char *id, struct pnp_dev *from) { return NULL; }
457 static inline void pnp_release_card_device(struct pnp_dev *dev) { }
458 static inline int pnp_register_card_driver(struct pnp_card_driver *drv) { return -ENODEV; }
459 static inline void pnp_unregister_card_driver(struct pnp_card_driver *drv) { }
461 /* resource management */
462 static inline int pnp_possible_config(struct pnp_dev *dev, int type,
463 resource_size_t base,
464 resource_size_t size) { return 0; }
465 static inline int pnp_auto_config_dev(struct pnp_dev *dev) { return -ENODEV; }
466 static inline int pnp_start_dev(struct pnp_dev *dev) { return -ENODEV; }
467 static inline int pnp_stop_dev(struct pnp_dev *dev) { return -ENODEV; }
468 static inline int pnp_activate_dev(struct pnp_dev *dev) { return -ENODEV; }
469 static inline int pnp_disable_dev(struct pnp_dev *dev) { return -ENODEV; }
471 /* protocol helpers */
472 static inline int pnp_is_active(struct pnp_dev *dev) { return 0; }
473 static inline int compare_pnp_id(struct pnp_id *pos, const char *id) { return -ENODEV; }
474 static inline int pnp_register_driver(struct pnp_driver *drv) { return -ENODEV; }
475 static inline void pnp_unregister_driver(struct pnp_driver *drv) { }
477 #endif /* CONFIG_PNP */
479 #define pnp_err(format, arg...) printk(KERN_ERR "pnp: " format "\n" , ## arg)
480 #define pnp_info(format, arg...) printk(KERN_INFO "pnp: " format "\n" , ## arg)
481 #define pnp_warn(format, arg...) printk(KERN_WARNING "pnp: " format "\n" , ## arg)
483 #ifdef CONFIG_PNP_DEBUG
484 #define pnp_dbg(format, arg...) printk(KERN_DEBUG "pnp: " format "\n" , ## arg)
486 #define pnp_dbg(format, arg...) do {} while (0)
489 #endif /* _LINUX_PNP_H */