2 * Linux Plug and Play Support
3 * Copyright by Adam Belay <ambx1@neo.rr.com>
12 #include <linux/device.h>
13 #include <linux/list.h>
14 #include <linux/errno.h>
15 #include <linux/mod_devicetable.h>
17 #define PNP_MAX_PORT 8
21 #define PNP_NAME_LEN 50
30 /* Use these instead of directly reading pnp_dev to get resource information */
31 #define pnp_port_start(dev,bar) ((dev)->res.port_resource[(bar)].start)
32 #define pnp_port_end(dev,bar) ((dev)->res.port_resource[(bar)].end)
33 #define pnp_port_flags(dev,bar) ((dev)->res.port_resource[(bar)].flags)
34 #define pnp_port_valid(dev,bar) \
35 ((pnp_port_flags((dev),(bar)) & (IORESOURCE_IO | IORESOURCE_UNSET)) \
37 #define pnp_port_len(dev,bar) \
38 ((pnp_port_start((dev),(bar)) == 0 && \
39 pnp_port_end((dev),(bar)) == \
40 pnp_port_start((dev),(bar))) ? 0 : \
42 (pnp_port_end((dev),(bar)) - \
43 pnp_port_start((dev),(bar)) + 1))
45 #define pnp_mem_start(dev,bar) ((dev)->res.mem_resource[(bar)].start)
46 #define pnp_mem_end(dev,bar) ((dev)->res.mem_resource[(bar)].end)
47 #define pnp_mem_flags(dev,bar) ((dev)->res.mem_resource[(bar)].flags)
48 #define pnp_mem_valid(dev,bar) \
49 ((pnp_mem_flags((dev),(bar)) & (IORESOURCE_MEM | IORESOURCE_UNSET)) \
51 #define pnp_mem_len(dev,bar) \
52 ((pnp_mem_start((dev),(bar)) == 0 && \
53 pnp_mem_end((dev),(bar)) == \
54 pnp_mem_start((dev),(bar))) ? 0 : \
56 (pnp_mem_end((dev),(bar)) - \
57 pnp_mem_start((dev),(bar)) + 1))
59 #define pnp_irq(dev,bar) ((dev)->res.irq_resource[(bar)].start)
60 #define pnp_irq_flags(dev,bar) ((dev)->res.irq_resource[(bar)].flags)
61 #define pnp_irq_valid(dev,bar) \
62 ((pnp_irq_flags((dev),(bar)) & (IORESOURCE_IRQ | IORESOURCE_UNSET)) \
65 #define pnp_dma(dev,bar) ((dev)->res.dma_resource[(bar)].start)
66 #define pnp_dma_flags(dev,bar) ((dev)->res.dma_resource[(bar)].flags)
67 #define pnp_dma_valid(dev,bar) \
68 ((pnp_dma_flags((dev),(bar)) & (IORESOURCE_DMA | IORESOURCE_UNSET)) \
71 #define PNP_PORT_FLAG_16BITADDR (1<<0)
72 #define PNP_PORT_FLAG_FIXED (1<<1)
75 unsigned short min; /* min base number */
76 unsigned short max; /* max base number */
77 unsigned char align; /* align boundary */
78 unsigned char size; /* size of range */
79 unsigned char flags; /* port flags */
80 unsigned char pad; /* pad */
81 struct pnp_port *next; /* next port */
84 #define PNP_IRQ_NR 256
86 DECLARE_BITMAP(map, PNP_IRQ_NR); /* bitmaks for IRQ lines */
87 unsigned char flags; /* IRQ flags */
88 unsigned char pad; /* pad */
89 struct pnp_irq *next; /* next IRQ */
93 unsigned char map; /* bitmask for DMA channels */
94 unsigned char flags; /* DMA flags */
95 struct pnp_dma *next; /* next port */
99 unsigned int min; /* min base number */
100 unsigned int max; /* max base number */
101 unsigned int align; /* align boundary */
102 unsigned int size; /* size of range */
103 unsigned char flags; /* memory flags */
104 unsigned char pad; /* pad */
105 struct pnp_mem *next; /* next memory resource */
108 #define PNP_RES_PRIORITY_PREFERRED 0
109 #define PNP_RES_PRIORITY_ACCEPTABLE 1
110 #define PNP_RES_PRIORITY_FUNCTIONAL 2
111 #define PNP_RES_PRIORITY_INVALID 65535
114 unsigned short priority; /* priority */
115 struct pnp_port *port; /* first port */
116 struct pnp_irq *irq; /* first IRQ */
117 struct pnp_dma *dma; /* first DMA */
118 struct pnp_mem *mem; /* first memory resource */
119 struct pnp_option *next; /* used to chain dependent resources */
122 struct pnp_resource_table {
123 struct resource port_resource[PNP_MAX_PORT];
124 struct resource mem_resource[PNP_MAX_MEM];
125 struct resource dma_resource[PNP_MAX_DMA];
126 struct resource irq_resource[PNP_MAX_IRQ];
134 struct device dev; /* Driver Model device interface */
135 unsigned char number; /* used as an index, must be unique */
136 struct list_head global_list; /* node in global list of cards */
137 struct list_head protocol_list; /* node in protocol's list of cards */
138 struct list_head devices; /* devices attached to the card */
140 struct pnp_protocol *protocol;
141 struct pnp_id *id; /* contains supported EISA IDs */
143 char name[PNP_NAME_LEN]; /* contains a human-readable name */
144 unsigned char pnpver; /* Plug & Play version */
145 unsigned char productver; /* product version */
146 unsigned int serial; /* serial number */
147 unsigned char checksum; /* if zero - checksum passed */
148 struct proc_dir_entry *procdir; /* directory entry in /proc/bus/isapnp */
151 #define global_to_pnp_card(n) list_entry(n, struct pnp_card, global_list)
152 #define protocol_to_pnp_card(n) list_entry(n, struct pnp_card, protocol_list)
153 #define to_pnp_card(n) container_of(n, struct pnp_card, dev)
154 #define pnp_for_each_card(card) \
155 for((card) = global_to_pnp_card(pnp_cards.next); \
156 (card) != global_to_pnp_card(&pnp_cards); \
157 (card) = global_to_pnp_card((card)->global_list.next))
159 struct pnp_card_link {
160 struct pnp_card *card;
161 struct pnp_card_driver *driver;
163 pm_message_t pm_state;
166 static inline void *pnp_get_card_drvdata(struct pnp_card_link *pcard)
168 return pcard->driver_data;
171 static inline void pnp_set_card_drvdata(struct pnp_card_link *pcard, void *data)
173 pcard->driver_data = data;
177 struct device dev; /* Driver Model device interface */
179 unsigned char number; /* used as an index, must be unique */
182 struct list_head global_list; /* node in global list of devices */
183 struct list_head protocol_list; /* node in list of device's protocol */
184 struct list_head card_list; /* node in card's list of devices */
185 struct list_head rdev_list; /* node in cards list of requested devices */
187 struct pnp_protocol *protocol;
188 struct pnp_card *card; /* card the device is attached to, none if NULL */
189 struct pnp_driver *driver;
190 struct pnp_card_link *card_link;
192 struct pnp_id *id; /* supported EISA IDs */
196 struct pnp_option *independent;
197 struct pnp_option *dependent;
198 struct pnp_resource_table res;
200 char name[PNP_NAME_LEN]; /* contains a human-readable name */
201 unsigned short regs; /* ISAPnP: supported registers */
202 int flags; /* used by protocols */
203 struct proc_dir_entry *procent; /* device entry in /proc/bus/isapnp */
207 #define global_to_pnp_dev(n) list_entry(n, struct pnp_dev, global_list)
208 #define card_to_pnp_dev(n) list_entry(n, struct pnp_dev, card_list)
209 #define protocol_to_pnp_dev(n) list_entry(n, struct pnp_dev, protocol_list)
210 #define to_pnp_dev(n) container_of(n, struct pnp_dev, dev)
211 #define pnp_for_each_dev(dev) \
212 for((dev) = global_to_pnp_dev(pnp_global.next); \
213 (dev) != global_to_pnp_dev(&pnp_global); \
214 (dev) = global_to_pnp_dev((dev)->global_list.next))
215 #define card_for_each_dev(card,dev) \
216 for((dev) = card_to_pnp_dev((card)->devices.next); \
217 (dev) != card_to_pnp_dev(&(card)->devices); \
218 (dev) = card_to_pnp_dev((dev)->card_list.next))
219 #define pnp_dev_name(dev) (dev)->name
221 static inline void *pnp_get_drvdata(struct pnp_dev *pdev)
223 return dev_get_drvdata(&pdev->dev);
226 static inline void pnp_set_drvdata(struct pnp_dev *pdev, void *data)
228 dev_set_drvdata(&pdev->dev, data);
233 void (*quirk_function) (struct pnp_dev * dev); /* fixup function */
236 /* config parameters */
237 #define PNP_CONFIG_NORMAL 0x0001
238 #define PNP_CONFIG_FORCE 0x0002 /* disables validity checking */
241 #define PNP_READ 0x0001
242 #define PNP_WRITE 0x0002
243 #define PNP_DISABLE 0x0004
244 #define PNP_CONFIGURABLE 0x0008
245 #define PNP_REMOVABLE 0x0010
247 #define pnp_can_read(dev) (((dev)->protocol) && ((dev)->protocol->get) && \
248 ((dev)->capabilities & PNP_READ))
249 #define pnp_can_write(dev) (((dev)->protocol) && ((dev)->protocol->set) && \
250 ((dev)->capabilities & PNP_WRITE))
251 #define pnp_can_disable(dev) (((dev)->protocol) && ((dev)->protocol->disable) && \
252 ((dev)->capabilities & PNP_DISABLE))
253 #define pnp_can_configure(dev) ((!(dev)->active) && \
254 ((dev)->capabilities & PNP_CONFIGURABLE))
257 extern struct pnp_protocol isapnp_protocol;
258 #define pnp_device_is_isapnp(dev) ((dev)->protocol == (&isapnp_protocol))
260 #define pnp_device_is_isapnp(dev) 0
263 #ifdef CONFIG_PNPBIOS
264 extern struct pnp_protocol pnpbios_protocol;
265 #define pnp_device_is_pnpbios(dev) ((dev)->protocol == (&pnpbios_protocol))
267 #define pnp_device_is_pnpbios(dev) 0
271 #define PNP_READY 0x0000
272 #define PNP_ATTACHED 0x0001
273 #define PNP_BUSY 0x0002
274 #define PNP_FAULTY 0x0004
276 /* isapnp specific macros */
278 #define isapnp_card_number(dev) ((dev)->card ? (dev)->card->number : -1)
279 #define isapnp_csn_number(dev) ((dev)->number)
292 const struct pnp_device_id *id_table;
294 int (*probe) (struct pnp_dev * dev,
295 const struct pnp_device_id * dev_id);
296 void (*remove) (struct pnp_dev * dev);
297 int (*suspend) (struct pnp_dev * dev, pm_message_t state);
298 int (*resume) (struct pnp_dev * dev);
299 struct device_driver driver;
302 #define to_pnp_driver(drv) container_of(drv, struct pnp_driver, driver)
304 struct pnp_card_driver {
305 struct list_head global_list;
307 const struct pnp_card_device_id *id_table;
309 int (*probe) (struct pnp_card_link * card,
310 const struct pnp_card_device_id * card_id);
311 void (*remove) (struct pnp_card_link * card);
312 int (*suspend) (struct pnp_card_link * card, pm_message_t state);
313 int (*resume) (struct pnp_card_link * card);
314 struct pnp_driver link;
317 #define to_pnp_card_driver(drv) container_of(drv, struct pnp_card_driver, link)
319 /* pnp driver flags */
320 #define PNP_DRIVER_RES_DO_NOT_CHANGE 0x0001 /* do not change the state of the device */
321 #define PNP_DRIVER_RES_DISABLE 0x0003 /* ensure the device is disabled */
324 * Protocol Management
327 struct pnp_protocol {
328 struct list_head protocol_list;
331 /* resource control functions */
332 int (*get) (struct pnp_dev * dev, struct pnp_resource_table * res);
333 int (*set) (struct pnp_dev * dev, struct pnp_resource_table * res);
334 int (*disable) (struct pnp_dev * dev);
336 /* protocol specific suspend/resume */
337 int (*suspend) (struct pnp_dev * dev, pm_message_t state);
338 int (*resume) (struct pnp_dev * dev);
340 /* used by pnp layer only (look but don't touch) */
341 unsigned char number; /* protocol number */
342 struct device dev; /* link to driver model */
343 struct list_head cards;
344 struct list_head devices;
347 #define to_pnp_protocol(n) list_entry(n, struct pnp_protocol, protocol_list)
348 #define protocol_for_each_card(protocol,card) \
349 for((card) = protocol_to_pnp_card((protocol)->cards.next); \
350 (card) != protocol_to_pnp_card(&(protocol)->cards); \
351 (card) = protocol_to_pnp_card((card)->protocol_list.next))
352 #define protocol_for_each_dev(protocol,dev) \
353 for((dev) = protocol_to_pnp_dev((protocol)->devices.next); \
354 (dev) != protocol_to_pnp_dev(&(protocol)->devices); \
355 (dev) = protocol_to_pnp_dev((dev)->protocol_list.next))
357 extern struct bus_type pnp_bus_type;
359 #if defined(CONFIG_PNP)
361 /* device management */
362 int pnp_register_protocol(struct pnp_protocol *protocol);
363 void pnp_unregister_protocol(struct pnp_protocol *protocol);
364 int pnp_add_device(struct pnp_dev *dev);
365 int pnp_device_attach(struct pnp_dev *pnp_dev);
366 void pnp_device_detach(struct pnp_dev *pnp_dev);
367 extern struct list_head pnp_global;
368 extern int pnp_platform_devices;
370 /* multidevice card support */
371 int pnp_add_card(struct pnp_card *card);
372 void pnp_remove_card(struct pnp_card *card);
373 int pnp_add_card_device(struct pnp_card *card, struct pnp_dev *dev);
374 void pnp_remove_card_device(struct pnp_dev *dev);
375 int pnp_add_card_id(struct pnp_id *id, struct pnp_card *card);
376 struct pnp_dev *pnp_request_card_device(struct pnp_card_link *clink,
377 const char *id, struct pnp_dev *from);
378 void pnp_release_card_device(struct pnp_dev *dev);
379 int pnp_register_card_driver(struct pnp_card_driver *drv);
380 void pnp_unregister_card_driver(struct pnp_card_driver *drv);
381 extern struct list_head pnp_cards;
383 /* resource management */
384 struct pnp_option *pnp_register_independent_option(struct pnp_dev *dev);
385 struct pnp_option *pnp_register_dependent_option(struct pnp_dev *dev,
387 int pnp_register_irq_resource(struct pnp_option *option, struct pnp_irq *data);
388 int pnp_register_dma_resource(struct pnp_option *option, struct pnp_dma *data);
389 int pnp_register_port_resource(struct pnp_option *option,
390 struct pnp_port *data);
391 int pnp_register_mem_resource(struct pnp_option *option, struct pnp_mem *data);
392 void pnp_init_resource_table(struct pnp_resource_table *table);
393 int pnp_manual_config_dev(struct pnp_dev *dev, struct pnp_resource_table *res,
395 int pnp_auto_config_dev(struct pnp_dev *dev);
396 int pnp_validate_config(struct pnp_dev *dev);
397 int pnp_start_dev(struct pnp_dev *dev);
398 int pnp_stop_dev(struct pnp_dev *dev);
399 int pnp_activate_dev(struct pnp_dev *dev);
400 int pnp_disable_dev(struct pnp_dev *dev);
401 void pnp_resource_change(struct resource *resource, resource_size_t start,
402 resource_size_t size);
404 /* protocol helpers */
405 int pnp_is_active(struct pnp_dev *dev);
406 int compare_pnp_id(struct pnp_id *pos, const char *id);
407 int pnp_add_id(struct pnp_id *id, struct pnp_dev *dev);
408 int pnp_register_driver(struct pnp_driver *drv);
409 void pnp_unregister_driver(struct pnp_driver *drv);
413 /* device management */
414 static inline int pnp_register_protocol(struct pnp_protocol *protocol)
418 static inline void pnp_unregister_protocol(struct pnp_protocol *protocol)
421 static inline int pnp_init_device(struct pnp_dev *dev)
425 static inline int pnp_add_device(struct pnp_dev *dev)
429 static inline int pnp_device_attach(struct pnp_dev *pnp_dev)
433 static inline void pnp_device_detach(struct pnp_dev *pnp_dev)
437 #define pnp_platform_devices 0
439 /* multidevice card support */
440 static inline int pnp_add_card(struct pnp_card *card)
444 static inline void pnp_remove_card(struct pnp_card *card)
447 static inline int pnp_add_card_device(struct pnp_card *card,
452 static inline void pnp_remove_card_device(struct pnp_dev *dev)
455 static inline int pnp_add_card_id(struct pnp_id *id, struct pnp_card *card)
459 static inline struct pnp_dev *pnp_request_card_device(struct pnp_card_link
460 *clink, const char *id,
461 struct pnp_dev *from)
465 static inline void pnp_release_card_device(struct pnp_dev *dev)
468 static inline int pnp_register_card_driver(struct pnp_card_driver *drv)
472 static inline void pnp_unregister_card_driver(struct pnp_card_driver *drv)
476 /* resource management */
477 static inline struct pnp_option *pnp_register_independent_option(struct pnp_dev
482 static inline struct pnp_option *pnp_register_dependent_option(struct pnp_dev
488 static inline int pnp_register_irq_resource(struct pnp_option *option,
489 struct pnp_irq *data)
493 static inline int pnp_register_dma_resource(struct pnp_option *option,
494 struct pnp_dma *data)
498 static inline int pnp_register_port_resource(struct pnp_option *option,
499 struct pnp_port *data)
503 static inline int pnp_register_mem_resource(struct pnp_option *option,
504 struct pnp_mem *data)
508 static inline void pnp_init_resource_table(struct pnp_resource_table *table)
511 static inline int pnp_manual_config_dev(struct pnp_dev *dev,
512 struct pnp_resource_table *res,
517 static inline int pnp_auto_config_dev(struct pnp_dev *dev)
521 static inline int pnp_validate_config(struct pnp_dev *dev)
525 static inline int pnp_start_dev(struct pnp_dev *dev)
529 static inline int pnp_stop_dev(struct pnp_dev *dev)
533 static inline int pnp_activate_dev(struct pnp_dev *dev)
537 static inline int pnp_disable_dev(struct pnp_dev *dev)
541 static inline void pnp_resource_change(struct resource *resource,
542 resource_size_t start,
543 resource_size_t size)
547 /* protocol helpers */
548 static inline int pnp_is_active(struct pnp_dev *dev)
552 static inline int compare_pnp_id(struct pnp_id *pos, const char *id)
556 static inline int pnp_add_id(struct pnp_id *id, struct pnp_dev *dev)
560 static inline int pnp_register_driver(struct pnp_driver *drv)
564 static inline void pnp_unregister_driver(struct pnp_driver *drv)
568 #endif /* CONFIG_PNP */
570 #define pnp_err(format, arg...) printk(KERN_ERR "pnp: " format "\n" , ## arg)
571 #define pnp_info(format, arg...) printk(KERN_INFO "pnp: " format "\n" , ## arg)
572 #define pnp_warn(format, arg...) printk(KERN_WARNING "pnp: " format "\n" , ## arg)
574 #ifdef CONFIG_PNP_DEBUG
575 #define pnp_dbg(format, arg...) printk(KERN_DEBUG "pnp: " format "\n" , ## arg)
577 #define pnp_dbg(format, arg...) do {} while (0)
580 #endif /* __KERNEL__ */
582 #endif /* _LINUX_PNP_H */