[linux.git] / include / linux / pnp.h

/*
 * Linux Plug and Play Support
 * Copyright by Adam Belay <[email protected]>
 *
 */

#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);
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 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 */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Linux Plug and Play Support
	3	* Copyright by Adam Belay <[email protected]>
	4	*
	5	*/
	6
	7	#ifndef _LINUX_PNP_H
	8	#define _LINUX_PNP_H
	9
	10	#ifdef __KERNEL__
	11
	12	#include <linux/device.h>
	13	#include <linux/list.h>
	14	#include <linux/errno.h>
	15	#include <linux/mod_devicetable.h>
	16
	17	#define PNP_MAX_PORT 8
	18	#define PNP_MAX_MEM 4
	19	#define PNP_MAX_IRQ 2
	20	#define PNP_MAX_DMA 2
	21	#define PNP_NAME_LEN 50
	22
	23	struct pnp_protocol;
	24	struct pnp_dev;
	25
	26
	27	/*
	28	* Resource Management
	29	*/
	30
	31	/* Use these instead of directly reading pnp_dev to get resource information */
	32	#define pnp_port_start(dev,bar) ((dev)->res.port_resource[(bar)].start)
	33	#define pnp_port_end(dev,bar) ((dev)->res.port_resource[(bar)].end)
	34	#define pnp_port_flags(dev,bar) ((dev)->res.port_resource[(bar)].flags)
	35	#define pnp_port_valid(dev,bar) \
	36	((pnp_port_flags((dev),(bar)) & (IORESOURCE_IO \| IORESOURCE_UNSET)) \
	37	== IORESOURCE_IO)
	38	#define pnp_port_len(dev,bar) \
	39	((pnp_port_start((dev),(bar)) == 0 && \
	40	pnp_port_end((dev),(bar)) == \
	41	pnp_port_start((dev),(bar))) ? 0 : \
	42	\
	43	(pnp_port_end((dev),(bar)) - \
	44	pnp_port_start((dev),(bar)) + 1))
	45
	46	#define pnp_mem_start(dev,bar) ((dev)->res.mem_resource[(bar)].start)
	47	#define pnp_mem_end(dev,bar) ((dev)->res.mem_resource[(bar)].end)
	48	#define pnp_mem_flags(dev,bar) ((dev)->res.mem_resource[(bar)].flags)
	49	#define pnp_mem_valid(dev,bar) \
	50	((pnp_mem_flags((dev),(bar)) & (IORESOURCE_MEM \| IORESOURCE_UNSET)) \
	51	== IORESOURCE_MEM)
	52	#define pnp_mem_len(dev,bar) \
	53	((pnp_mem_start((dev),(bar)) == 0 && \
	54	pnp_mem_end((dev),(bar)) == \
	55	pnp_mem_start((dev),(bar))) ? 0 : \
	56	\
	57	(pnp_mem_end((dev),(bar)) - \
	58	pnp_mem_start((dev),(bar)) + 1))
	59
	60	#define pnp_irq(dev,bar) ((dev)->res.irq_resource[(bar)].start)
	61	#define pnp_irq_flags(dev,bar) ((dev)->res.irq_resource[(bar)].flags)
	62	#define pnp_irq_valid(dev,bar) \
	63	((pnp_irq_flags((dev),(bar)) & (IORESOURCE_IRQ \| IORESOURCE_UNSET)) \
	64	== IORESOURCE_IRQ)
65
66	#define pnp_dma(dev,bar) ((dev)->res.dma_resource[(bar)].start)
67	#define pnp_dma_flags(dev,bar) ((dev)->res.dma_resource[(bar)].flags)
68	#define pnp_dma_valid(dev,bar) \
69	((pnp_dma_flags((dev),(bar)) & (IORESOURCE_DMA \| IORESOURCE_UNSET)) \
70	== IORESOURCE_DMA)
71
72	#define PNP_PORT_FLAG_16BITADDR (1<<0)
73	#define PNP_PORT_FLAG_FIXED (1<<1)
74
75	struct pnp_port {
76	unsigned short min; /* min base number */
77	unsigned short max; /* max base number */
78	unsigned char align; /* align boundary */
79	unsigned char size; /* size of range */
80	unsigned char flags; /* port flags */
81	unsigned char pad; /* pad */
82	struct pnp_port next; / next port */
83	};
84
85	#define PNP_IRQ_NR 256
86	struct pnp_irq {
87	DECLARE_BITMAP(map, PNP_IRQ_NR); /* bitmaks for IRQ lines */
88	unsigned char flags; /* IRQ flags */
89	unsigned char pad; /* pad */
90	struct pnp_irq next; / next IRQ */
91	};
92
93	struct pnp_dma {
94	unsigned char map; /* bitmask for DMA channels */
95	unsigned char flags; /* DMA flags */
96	struct pnp_dma next; / next port */
97	};
98
99	struct pnp_mem {
100	unsigned int min; /* min base number */
101	unsigned int max; /* max base number */
102	unsigned int align; /* align boundary */
103	unsigned int size; /* size of range */
104	unsigned char flags; /* memory flags */
105	unsigned char pad; /* pad */
106	struct pnp_mem next; / next memory resource */
107	};
108
109	#define PNP_RES_PRIORITY_PREFERRED 0
110	#define PNP_RES_PRIORITY_ACCEPTABLE 1
111	#define PNP_RES_PRIORITY_FUNCTIONAL 2
112	#define PNP_RES_PRIORITY_INVALID 65535
113
114	struct pnp_option {
115	unsigned short priority; /* priority */
116	struct pnp_port port; / first port */
117	struct pnp_irq irq; / first IRQ */
118	struct pnp_dma dma; / first DMA */
119	struct pnp_mem mem; / first memory resource */
120	struct pnp_option next; / used to chain dependent resources */
121	};
122
123	struct pnp_resource_table {
124	struct resource port_resource[PNP_MAX_PORT];
125	struct resource mem_resource[PNP_MAX_MEM];
126	struct resource dma_resource[PNP_MAX_DMA];
127	struct resource irq_resource[PNP_MAX_IRQ];
128	};
129
130
131	/*
132	* Device Managemnt
133	*/
134
135	struct pnp_card {
136	struct device dev; /* Driver Model device interface */
137	unsigned char number; /* used as an index, must be unique */
138	struct list_head global_list; /* node in global list of cards */
139	struct list_head protocol_list; /* node in protocol's list of cards */
140	struct list_head devices; /* devices attached to the card */
141
142	struct pnp_protocol * protocol;
143	struct pnp_id * id; /* contains supported EISA IDs*/
144
145	char name[PNP_NAME_LEN]; /* contains a human-readable name */
146	unsigned char pnpver; /* Plug & Play version */
147	unsigned char productver; /* product version */
148	unsigned int serial; /* serial number */
149	unsigned char checksum; /* if zero - checksum passed */
150	struct proc_dir_entry procdir; / directory entry in /proc/bus/isapnp */
151	};
152
153	#define global_to_pnp_card(n) list_entry(n, struct pnp_card, global_list)
154	#define protocol_to_pnp_card(n) list_entry(n, struct pnp_card, protocol_list)
155	#define to_pnp_card(n) container_of(n, struct pnp_card, dev)
156	#define pnp_for_each_card(card) \
157	for((card) = global_to_pnp_card(pnp_cards.next); \
158	(card) != global_to_pnp_card(&pnp_cards); \
159	(card) = global_to_pnp_card((card)->global_list.next))
160
161	struct pnp_card_link {
162	struct pnp_card * card;
163	struct pnp_card_driver * driver;
164	void * driver_data;
165	};
166
167	static inline void pnp_get_card_drvdata (struct pnp_card_link pcard)
168	{
169	return pcard->driver_data;
170	}
171
172	static inline void pnp_set_card_drvdata (struct pnp_card_link pcard, void data)
173	{
174	pcard->driver_data = data;
175	}
176
177	struct pnp_dev {
178	struct device dev; /* Driver Model device interface */
179	unsigned char number; /* used as an index, must be unique */
180	int status;
181
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 */
186
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;
191
192	struct pnp_id * id; /* supported EISA IDs*/
193
194	int active;
195	int capabilities;
196	struct pnp_option * independent;
197	struct pnp_option * dependent;
198	struct pnp_resource_table res;
199
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 */
204	void *data;
205	};
206
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
220
221	static inline void pnp_get_drvdata (struct pnp_dev pdev)
222	{
223	return dev_get_drvdata(&pdev->dev);
224	}
225
226	static inline void pnp_set_drvdata (struct pnp_dev pdev, void data)
227	{
228	dev_set_drvdata(&pdev->dev, data);
229	}
230
231	struct pnp_fixup {
232	char id[7];
233	void (quirk_function)(struct pnp_dev dev); /* fixup function */
234	};
235
236	/* config parameters */
237	#define PNP_CONFIG_NORMAL 0x0001
238	#define PNP_CONFIG_FORCE 0x0002 /* disables validity checking */
239
240	/* capabilities */
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
246
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))
255
256	#ifdef CONFIG_ISAPNP
257	extern struct pnp_protocol isapnp_protocol;
258	#define pnp_device_is_isapnp(dev) ((dev)->protocol == (&isapnp_protocol))
259	#else
260	#define pnp_device_is_isapnp(dev) 0
261	#endif
262
263	#ifdef CONFIG_PNPBIOS
264	extern struct pnp_protocol pnpbios_protocol;
265	#define pnp_device_is_pnpbios(dev) ((dev)->protocol == (&pnpbios_protocol))
266	#else
267	#define pnp_device_is_pnpbios(dev) 0
268	#endif
269
270
271	/* status */
272	#define PNP_READY 0x0000
273	#define PNP_ATTACHED 0x0001
274	#define PNP_BUSY 0x0002
275	#define PNP_FAULTY 0x0004
276
277	/* isapnp specific macros */
278
279	#define isapnp_card_number(dev) ((dev)->card ? (dev)->card->number : -1)
280	#define isapnp_csn_number(dev) ((dev)->number)
281
282	/*
283	* Driver Management
284	*/
285
286	struct pnp_id {
287	char id[PNP_ID_LEN];
288	struct pnp_id * next;
289	};
290
291	struct pnp_driver {
292	char * name;
293	const struct pnp_device_id *id_table;
294	unsigned int flags;
295	int (probe) (struct pnp_dev dev, const struct pnp_device_id *dev_id);
296	void (remove) (struct pnp_dev dev);
297	struct device_driver driver;
298	};
299
300	#define to_pnp_driver(drv) container_of(drv, struct pnp_driver, driver)
301
302	struct pnp_card_driver {
303	struct list_head global_list;
304	char * name;
305	const struct pnp_card_device_id *id_table;
306	unsigned int flags;
307	int (probe) (struct pnp_card_link card, const struct pnp_card_device_id *card_id);
308	void (remove) (struct pnp_card_link card);
309	struct pnp_driver link;
310	};
311
312	#define to_pnp_card_driver(drv) container_of(drv, struct pnp_card_driver, link)
313
314	/* pnp driver flags */
315	#define PNP_DRIVER_RES_DO_NOT_CHANGE 0x0001 /* do not change the state of the device */
316	#define PNP_DRIVER_RES_DISABLE 0x0003 /* ensure the device is disabled */
317
318
319	/*
320	* Protocol Management
321	*/
322
323	struct pnp_protocol {
324	struct list_head protocol_list;
325	char * name;
326
327	/* resource control functions */
328	int (get)(struct pnp_dev dev, struct pnp_resource_table *res);
329	int (set)(struct pnp_dev dev, struct pnp_resource_table *res);
330	int (disable)(struct pnp_dev dev);
331
332	/* used by pnp layer only (look but don't touch) */
333	unsigned char number; /* protocol number*/
334	struct device dev; /* link to driver model */
335	struct list_head cards;
336	struct list_head devices;
337	};
338
339	#define to_pnp_protocol(n) list_entry(n, struct pnp_protocol, protocol_list)
340	#define protocol_for_each_card(protocol,card) \
341	for((card) = protocol_to_pnp_card((protocol)->cards.next); \
342	(card) != protocol_to_pnp_card(&(protocol)->cards); \
343	(card) = protocol_to_pnp_card((card)->protocol_list.next))
344	#define protocol_for_each_dev(protocol,dev) \
345	for((dev) = protocol_to_pnp_dev((protocol)->devices.next); \
346	(dev) != protocol_to_pnp_dev(&(protocol)->devices); \
347	(dev) = protocol_to_pnp_dev((dev)->protocol_list.next))
348
349
350	#if defined(CONFIG_PNP)
351
352	/* device management */
353	int pnp_register_protocol(struct pnp_protocol *protocol);
354	void pnp_unregister_protocol(struct pnp_protocol *protocol);
355	int pnp_add_device(struct pnp_dev *dev);
1da177e4 LT	356	int pnp_device_attach(struct pnp_dev *pnp_dev);
	357	void pnp_device_detach(struct pnp_dev *pnp_dev);
	358	extern struct list_head pnp_global;
	359
	360	/* multidevice card support */
	361	int pnp_add_card(struct pnp_card *card);
	362	void pnp_remove_card(struct pnp_card *card);
	363	int pnp_add_card_device(struct pnp_card card, struct pnp_dev dev);
	364	void pnp_remove_card_device(struct pnp_dev *dev);
	365	int pnp_add_card_id(struct pnp_id id, struct pnp_card card);
	366	struct pnp_dev * pnp_request_card_device(struct pnp_card_link clink, const char id, struct pnp_dev * from);
	367	void pnp_release_card_device(struct pnp_dev * dev);
	368	int pnp_register_card_driver(struct pnp_card_driver * drv);
	369	void pnp_unregister_card_driver(struct pnp_card_driver * drv);
	370	extern struct list_head pnp_cards;
	371
	372	/* resource management */
	373	struct pnp_option * pnp_register_independent_option(struct pnp_dev *dev);
	374	struct pnp_option * pnp_register_dependent_option(struct pnp_dev *dev, int priority);
	375	int pnp_register_irq_resource(struct pnp_option option, struct pnp_irq data);
	376	int pnp_register_dma_resource(struct pnp_option option, struct pnp_dma data);
	377	int pnp_register_port_resource(struct pnp_option option, struct pnp_port data);
	378	int pnp_register_mem_resource(struct pnp_option option, struct pnp_mem data);
	379	void pnp_init_resource_table(struct pnp_resource_table *table);
	380	int pnp_manual_config_dev(struct pnp_dev dev, struct pnp_resource_table res, int mode);
	381	int pnp_auto_config_dev(struct pnp_dev *dev);
	382	int pnp_validate_config(struct pnp_dev *dev);
	383	int pnp_activate_dev(struct pnp_dev *dev);
	384	int pnp_disable_dev(struct pnp_dev *dev);
	385	void pnp_resource_change(struct resource *resource, unsigned long start, unsigned long size);
	386
	387	/* protocol helpers */
	388	int pnp_is_active(struct pnp_dev * dev);
	389	int compare_pnp_id(struct pnp_id * pos, const char * id);
	390	int pnp_add_id(struct pnp_id id, struct pnp_dev dev);
	391	int pnp_register_driver(struct pnp_driver *drv);
	392	void pnp_unregister_driver(struct pnp_driver *drv);
	393
	394	#else
	395
	396	/* device management */
	397	static inline int pnp_register_protocol(struct pnp_protocol *protocol) { return -ENODEV; }
	398	static inline void pnp_unregister_protocol(struct pnp_protocol *protocol) { }
	399	static inline int pnp_init_device(struct pnp_dev *dev) { return -ENODEV; }
	400	static inline int pnp_add_device(struct pnp_dev *dev) { return -ENODEV; }
1da177e4 LT	401	static inline int pnp_device_attach(struct pnp_dev *pnp_dev) { return -ENODEV; }
	402	static inline void pnp_device_detach(struct pnp_dev *pnp_dev) { ; }
	403
	404	/* multidevice card support */
	405	static inline int pnp_add_card(struct pnp_card *card) { return -ENODEV; }
	406	static inline void pnp_remove_card(struct pnp_card *card) { ; }
	407	static inline int pnp_add_card_device(struct pnp_card card, struct pnp_dev dev) { return -ENODEV; }
	408	static inline void pnp_remove_card_device(struct pnp_dev *dev) { ; }
	409	static inline int pnp_add_card_id(struct pnp_id id, struct pnp_card card) { return -ENODEV; }
	410	static inline struct pnp_dev * pnp_request_card_device(struct pnp_card_link clink, const char id, struct pnp_dev * from) { return NULL; }
	411	static inline void pnp_release_card_device(struct pnp_dev * dev) { ; }
	412	static inline int pnp_register_card_driver(struct pnp_card_driver * drv) { return -ENODEV; }
	413	static inline void pnp_unregister_card_driver(struct pnp_card_driver * drv) { ; }
	414
	415	/* resource management */
	416	static inline struct pnp_option * pnp_register_independent_option(struct pnp_dev *dev) { return NULL; }
	417	static inline struct pnp_option * pnp_register_dependent_option(struct pnp_dev *dev, int priority) { return NULL; }
	418	static inline int pnp_register_irq_resource(struct pnp_option option, struct pnp_irq data) { return -ENODEV; }
	419	static inline int pnp_register_dma_resource(struct pnp_option option, struct pnp_dma data) { return -ENODEV; }
	420	static inline int pnp_register_port_resource(struct pnp_option option, struct pnp_port data) { return -ENODEV; }
	421	static inline int pnp_register_mem_resource(struct pnp_option option, struct pnp_mem data) { return -ENODEV; }
	422	static inline void pnp_init_resource_table(struct pnp_resource_table *table) { }
	423	static inline int pnp_manual_config_dev(struct pnp_dev dev, struct pnp_resource_table res, int mode) { return -ENODEV; }
	424	static inline int pnp_auto_config_dev(struct pnp_dev *dev) { return -ENODEV; }
	425	static inline int pnp_validate_config(struct pnp_dev *dev) { return -ENODEV; }
	426	static inline int pnp_activate_dev(struct pnp_dev *dev) { return -ENODEV; }
	427	static inline int pnp_disable_dev(struct pnp_dev *dev) { return -ENODEV; }
	428	static inline void pnp_resource_change(struct resource *resource, unsigned long start, unsigned long size) { }
	429
	430	/* protocol helpers */
	431	static inline int pnp_is_active(struct pnp_dev * dev) { return 0; }
	432	static inline int compare_pnp_id(struct pnp_id * pos, const char * id) { return -ENODEV; }
	433	static inline int pnp_add_id(struct pnp_id id, struct pnp_dev dev) { return -ENODEV; }
	434	static inline int pnp_register_driver(struct pnp_driver *drv) { return -ENODEV; }
	435	static inline void pnp_unregister_driver(struct pnp_driver *drv) { ; }
	436
	437	#endif /* CONFIG_PNP */
	438
	439
	440	#define pnp_err(format, arg...) printk(KERN_ERR "pnp: " format "\n" , ## arg)
	441	#define pnp_info(format, arg...) printk(KERN_INFO "pnp: " format "\n" , ## arg)
	442	#define pnp_warn(format, arg...) printk(KERN_WARNING "pnp: " format "\n" , ## arg)
	443
e139aa59	444	#ifdef CONFIG_PNP_DEBUG
1da177e4 LT	445	#define pnp_dbg(format, arg...) printk(KERN_DEBUG "pnp: " format "\n" , ## arg)
	446	#else
	447	#define pnp_dbg(format, arg...) do {} while (0)
	448	#endif
	449
	450	#endif /* __KERNEL__ */
	451
	452	#endif /* _LINUX_PNP_H */