pnp.h
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上传日期:2009-04-28
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文件大小:16k
- /*
- * Linux Plug and Play Support
- * Copyright by Adam Belay <ambx1@neo.rr.com>
- *
- */
- #ifndef _LINUX_PNP_H
- #define _LINUX_PNP_H
- #ifdef __KERNEL__
- #include <linux/device.h>
- #include <linux/list.h>
- #include <linux/errno.h>
- #include <linux/mod_devicetable.h>
- #define PNP_MAX_PORT 8
- #define PNP_MAX_MEM 4
- #define PNP_MAX_IRQ 2
- #define PNP_MAX_DMA 2
- #define PNP_NAME_LEN 50
- struct pnp_protocol;
- struct pnp_dev;
- /*
- * Resource Management
- */
- /* Use these instead of directly reading pnp_dev to get resource information */
- #define pnp_port_start(dev,bar) ((dev)->res.port_resource[(bar)].start)
- #define pnp_port_end(dev,bar) ((dev)->res.port_resource[(bar)].end)
- #define pnp_port_flags(dev,bar) ((dev)->res.port_resource[(bar)].flags)
- #define pnp_port_valid(dev,bar)
- ((pnp_port_flags((dev),(bar)) & (IORESOURCE_IO | IORESOURCE_UNSET))
- == IORESOURCE_IO)
- #define pnp_port_len(dev,bar)
- ((pnp_port_start((dev),(bar)) == 0 &&
- pnp_port_end((dev),(bar)) ==
- pnp_port_start((dev),(bar))) ? 0 :
-
- (pnp_port_end((dev),(bar)) -
- pnp_port_start((dev),(bar)) + 1))
- #define pnp_mem_start(dev,bar) ((dev)->res.mem_resource[(bar)].start)
- #define pnp_mem_end(dev,bar) ((dev)->res.mem_resource[(bar)].end)
- #define pnp_mem_flags(dev,bar) ((dev)->res.mem_resource[(bar)].flags)
- #define pnp_mem_valid(dev,bar)
- ((pnp_mem_flags((dev),(bar)) & (IORESOURCE_MEM | IORESOURCE_UNSET))
- == IORESOURCE_MEM)
- #define pnp_mem_len(dev,bar)
- ((pnp_mem_start((dev),(bar)) == 0 &&
- pnp_mem_end((dev),(bar)) ==
- pnp_mem_start((dev),(bar))) ? 0 :
-
- (pnp_mem_end((dev),(bar)) -
- pnp_mem_start((dev),(bar)) + 1))
- #define pnp_irq(dev,bar) ((dev)->res.irq_resource[(bar)].start)
- #define pnp_irq_flags(dev,bar) ((dev)->res.irq_resource[(bar)].flags)
- #define pnp_irq_valid(dev,bar)
- ((pnp_irq_flags((dev),(bar)) & (IORESOURCE_IRQ | IORESOURCE_UNSET))
- == IORESOURCE_IRQ)
- #define pnp_dma(dev,bar) ((dev)->res.dma_resource[(bar)].start)
- #define pnp_dma_flags(dev,bar) ((dev)->res.dma_resource[(bar)].flags)
- #define pnp_dma_valid(dev,bar)
- ((pnp_dma_flags((dev),(bar)) & (IORESOURCE_DMA | IORESOURCE_UNSET))
- == IORESOURCE_DMA)
- #define PNP_PORT_FLAG_16BITADDR (1<<0)
- #define PNP_PORT_FLAG_FIXED (1<<1)
- struct pnp_port {
- unsigned short min; /* min base number */
- unsigned short max; /* max base number */
- unsigned char align; /* align boundary */
- unsigned char size; /* size of range */
- unsigned char flags; /* port flags */
- unsigned char pad; /* pad */
- struct pnp_port *next; /* next port */
- };
- #define PNP_IRQ_NR 256
- struct pnp_irq {
- DECLARE_BITMAP(map, PNP_IRQ_NR); /* bitmaks for IRQ lines */
- unsigned char flags; /* IRQ flags */
- unsigned char pad; /* pad */
- struct pnp_irq *next; /* next IRQ */
- };
- struct pnp_dma {
- unsigned char map; /* bitmask for DMA channels */
- unsigned char flags; /* DMA flags */
- struct pnp_dma *next; /* next port */
- };
- struct pnp_mem {
- unsigned int min; /* min base number */
- unsigned int max; /* max base number */
- unsigned int align; /* align boundary */
- unsigned int size; /* size of range */
- unsigned char flags; /* memory flags */
- unsigned char pad; /* pad */
- struct pnp_mem *next; /* next memory resource */
- };
- #define PNP_RES_PRIORITY_PREFERRED 0
- #define PNP_RES_PRIORITY_ACCEPTABLE 1
- #define PNP_RES_PRIORITY_FUNCTIONAL 2
- #define PNP_RES_PRIORITY_INVALID 65535
- struct pnp_option {
- unsigned short priority; /* priority */
- struct pnp_port *port; /* first port */
- struct pnp_irq *irq; /* first IRQ */
- struct pnp_dma *dma; /* first DMA */
- struct pnp_mem *mem; /* first memory resource */
- struct pnp_option *next; /* used to chain dependent resources */
- };
- struct pnp_resource_table {
- struct resource port_resource[PNP_MAX_PORT];
- struct resource mem_resource[PNP_MAX_MEM];
- struct resource dma_resource[PNP_MAX_DMA];
- struct resource irq_resource[PNP_MAX_IRQ];
- };
- /*
- * Device Managemnt
- */
- 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;
- };
- 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 */
- unsigned char 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;
- struct pnp_option * independent;
- struct pnp_option * dependent;
- struct pnp_resource_table res;
- char name[PNP_NAME_LEN]; /* contains a human-readable name */
- unsigned short regs; /* ISAPnP: supported registers */
- 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) && ((dev)->protocol->get) &&
- ((dev)->capabilities & PNP_READ))
- #define pnp_can_write(dev) (((dev)->protocol) && ((dev)->protocol->set) &&
- ((dev)->capabilities & PNP_WRITE))
- #define pnp_can_disable(dev) (((dev)->protocol) && ((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
- #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
- /* 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);
- 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);
- 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, struct pnp_resource_table *res);
- int (*set)(struct pnp_dev *dev, struct pnp_resource_table *res);
- int (*disable)(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))
- #if defined(CONFIG_PNP)
- /* device management */
- int pnp_register_protocol(struct pnp_protocol *protocol);
- void pnp_unregister_protocol(struct pnp_protocol *protocol);
- int pnp_add_device(struct pnp_dev *dev);
- void pnp_remove_device(struct pnp_dev *dev);
- int pnp_device_attach(struct pnp_dev *pnp_dev);
- void pnp_device_detach(struct pnp_dev *pnp_dev);
- extern struct list_head pnp_global;
- /* multidevice card support */
- int pnp_add_card(struct pnp_card *card);
- void pnp_remove_card(struct pnp_card *card);
- int pnp_add_card_device(struct pnp_card *card, struct pnp_dev *dev);
- void pnp_remove_card_device(struct pnp_dev *dev);
- int pnp_add_card_id(struct pnp_id *id, struct pnp_card *card);
- 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 */
- struct pnp_option * pnp_register_independent_option(struct pnp_dev *dev);
- struct pnp_option * pnp_register_dependent_option(struct pnp_dev *dev, int priority);
- int pnp_register_irq_resource(struct pnp_option *option, struct pnp_irq *data);
- int pnp_register_dma_resource(struct pnp_option *option, struct pnp_dma *data);
- int pnp_register_port_resource(struct pnp_option *option, struct pnp_port *data);
- int pnp_register_mem_resource(struct pnp_option *option, struct pnp_mem *data);
- void pnp_init_resource_table(struct pnp_resource_table *table);
- int pnp_manual_config_dev(struct pnp_dev *dev, struct pnp_resource_table *res, int mode);
- int pnp_auto_config_dev(struct pnp_dev *dev);
- int pnp_validate_config(struct pnp_dev *dev);
- int pnp_activate_dev(struct pnp_dev *dev);
- int pnp_disable_dev(struct pnp_dev *dev);
- void pnp_resource_change(struct resource *resource, unsigned long start, unsigned long size);
- /* protocol helpers */
- int pnp_is_active(struct pnp_dev * dev);
- int compare_pnp_id(struct pnp_id * pos, const char * id);
- int pnp_add_id(struct pnp_id *id, struct pnp_dev *dev);
- int pnp_register_driver(struct pnp_driver *drv);
- void pnp_unregister_driver(struct pnp_driver *drv);
- #else
- /* device management */
- static inline int pnp_register_protocol(struct pnp_protocol *protocol) { return -ENODEV; }
- static inline void pnp_unregister_protocol(struct pnp_protocol *protocol) { }
- static inline int pnp_init_device(struct pnp_dev *dev) { return -ENODEV; }
- static inline int pnp_add_device(struct pnp_dev *dev) { return -ENODEV; }
- static inline void pnp_remove_device(struct pnp_dev *dev) { }
- static inline int pnp_device_attach(struct pnp_dev *pnp_dev) { return -ENODEV; }
- static inline void pnp_device_detach(struct pnp_dev *pnp_dev) { ; }
- /* multidevice card support */
- static inline int pnp_add_card(struct pnp_card *card) { return -ENODEV; }
- static inline void pnp_remove_card(struct pnp_card *card) { ; }
- static inline int pnp_add_card_device(struct pnp_card *card, struct pnp_dev *dev) { return -ENODEV; }
- static inline void pnp_remove_card_device(struct pnp_dev *dev) { ; }
- static inline int pnp_add_card_id(struct pnp_id *id, struct pnp_card *card) { return -ENODEV; }
- 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 struct pnp_option * pnp_register_independent_option(struct pnp_dev *dev) { return NULL; }
- static inline struct pnp_option * pnp_register_dependent_option(struct pnp_dev *dev, int priority) { return NULL; }
- static inline int pnp_register_irq_resource(struct pnp_option *option, struct pnp_irq *data) { return -ENODEV; }
- static inline int pnp_register_dma_resource(struct pnp_option *option, struct pnp_dma *data) { return -ENODEV; }
- static inline int pnp_register_port_resource(struct pnp_option *option, struct pnp_port *data) { return -ENODEV; }
- static inline int pnp_register_mem_resource(struct pnp_option *option, struct pnp_mem *data) { return -ENODEV; }
- static inline void pnp_init_resource_table(struct pnp_resource_table *table) { }
- static inline int pnp_manual_config_dev(struct pnp_dev *dev, struct pnp_resource_table *res, int mode) { return -ENODEV; }
- static inline int pnp_auto_config_dev(struct pnp_dev *dev) { return -ENODEV; }
- static inline int pnp_validate_config(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 void pnp_resource_change(struct resource *resource, unsigned long start, unsigned long size) { }
- /* 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_add_id(struct pnp_id *id, struct pnp_dev *dev) { 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 */
- #define pnp_err(format, arg...) printk(KERN_ERR "pnp: " format "n" , ## arg)
- #define pnp_info(format, arg...) printk(KERN_INFO "pnp: " format "n" , ## arg)
- #define pnp_warn(format, arg...) printk(KERN_WARNING "pnp: " format "n" , ## arg)
- #ifdef CONFIG_PNP_DEBUG
- #define pnp_dbg(format, arg...) printk(KERN_DEBUG "pnp: " format "n" , ## arg)
- #else
- #define pnp_dbg(format, arg...) do {} while (0)
- #endif
- #endif /* __KERNEL__ */
- #endif /* _LINUX_PNP_H */