[linux-2.6-block.git] / include / linux / pnp.h

/*
 * Linux Plug and Play Support
 * Copyright by Adam Belay <ambx1@neo.rr.com>
 */

#ifndef _LINUX_PNP_H
#define _LINUX_PNP_H

#include <linux/device.h>
#include <linux/list.h>
#include <linux/errno.h>
#include <linux/mod_devicetable.h>

#define PNP_NAME_LEN		50

struct pnp_protocol;
struct pnp_dev;
struct pnp_resource_table;

/*
 * Resource Management
 */
struct resource *pnp_get_resource(struct pnp_dev *, unsigned int, unsigned int);

static inline int pnp_resource_valid(struct resource *res)
{
	if (res && !(res->flags & IORESOURCE_UNSET))
		return 1;
	return 0;
}

static inline resource_size_t pnp_resource_len(struct resource *res)
{
	if (res->start == 0 && res->end == 0)
		return 0;
	return res->end - res->start + 1;
}


static inline resource_size_t pnp_port_start(struct pnp_dev *dev,
					     unsigned int bar)
{
	struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar);

	if (pnp_resource_valid(res))
		return res->start;
	return 0;
}

static inline resource_size_t pnp_port_end(struct pnp_dev *dev,
					   unsigned int bar)
{
	struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar);

	if (pnp_resource_valid(res))
		return res->end;
	return 0;
}

static inline unsigned long pnp_port_flags(struct pnp_dev *dev,
					   unsigned int bar)
{
	struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar);

	if (pnp_resource_valid(res))
		return res->flags;
	return IORESOURCE_IO | IORESOURCE_AUTO | IORESOURCE_UNSET;
}

static inline int pnp_port_valid(struct pnp_dev *dev, unsigned int bar)
{
	return pnp_resource_valid(pnp_get_resource(dev, IORESOURCE_IO, bar));
}

static inline resource_size_t pnp_port_len(struct pnp_dev *dev,
					   unsigned int bar)
{
	struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar);

	if (pnp_resource_valid(res))
		return pnp_resource_len(res);
	return 0;
}


static inline resource_size_t pnp_mem_start(struct pnp_dev *dev,
					    unsigned int bar)
{
	struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar);

	if (pnp_resource_valid(res))
		return res->start;
	return 0;
}

static inline resource_size_t pnp_mem_end(struct pnp_dev *dev,
					  unsigned int bar)
{
	struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar);

	if (pnp_resource_valid(res))
		return res->end;
	return 0;
}

static inline unsigned long pnp_mem_flags(struct pnp_dev *dev, unsigned int bar)
{
	struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar);

	if (pnp_resource_valid(res))
		return res->flags;
	return IORESOURCE_MEM | IORESOURCE_AUTO | IORESOURCE_UNSET;
}

static inline int pnp_mem_valid(struct pnp_dev *dev, unsigned int bar)
{
	return pnp_resource_valid(pnp_get_resource(dev, IORESOURCE_MEM, bar));
}

static inline resource_size_t pnp_mem_len(struct pnp_dev *dev,
					  unsigned int bar)
{
	struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar);

	if (pnp_resource_valid(res))
		return pnp_resource_len(res);
	return 0;
}


static inline resource_size_t pnp_irq(struct pnp_dev *dev, unsigned int bar)
{
	struct resource *res = pnp_get_resource(dev, IORESOURCE_IRQ, bar);

	if (pnp_resource_valid(res))
		return res->start;
	return -1;
}

static inline unsigned long pnp_irq_flags(struct pnp_dev *dev, unsigned int bar)
{
	struct resource *res = pnp_get_resource(dev, IORESOURCE_IRQ, bar);

	if (pnp_resource_valid(res))
		return res->flags;
	return IORESOURCE_IRQ | IORESOURCE_AUTO | IORESOURCE_UNSET;
}

static inline int pnp_irq_valid(struct pnp_dev *dev, unsigned int bar)
{
	return pnp_resource_valid(pnp_get_resource(dev, IORESOURCE_IRQ, bar));
}


static inline resource_size_t pnp_dma(struct pnp_dev *dev, unsigned int bar)
{
	struct resource *res = pnp_get_resource(dev, IORESOURCE_DMA, bar);

	if (pnp_resource_valid(res))
		return res->start;
	return -1;
}

static inline unsigned long pnp_dma_flags(struct pnp_dev *dev, unsigned int bar)
{
	struct resource *res = pnp_get_resource(dev, IORESOURCE_DMA, bar);

	if (pnp_resource_valid(res))
		return res->flags;
	return IORESOURCE_DMA | IORESOURCE_AUTO | IORESOURCE_UNSET;
}

static inline int pnp_dma_valid(struct pnp_dev *dev, unsigned int bar)
{
	return pnp_resource_valid(pnp_get_resource(dev, IORESOURCE_DMA, bar));
}


#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);	/* bitmask 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 */
};

/*
 * Device Management
 */

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;
	pm_message_t pm_state;
};

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 */
	u64 dma_mask;
	unsigned int 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 */
	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->get) && \
				 ((dev)->capabilities & PNP_READ))
#define pnp_can_write(dev)	(((dev)->protocol->set) && \
				 ((dev)->capabilities & PNP_WRITE))
#define pnp_can_disable(dev)	(((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
extern struct mutex pnp_res_mutex;

#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);
	int (*suspend) (struct pnp_dev *dev, pm_message_t state);
	int (*resume) (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);
	int (*suspend) (struct pnp_card_link *card, pm_message_t state);
	int (*resume) (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);
	int (*set) (struct pnp_dev *dev);
	int (*disable) (struct pnp_dev *dev);

	/* protocol specific suspend/resume */
	int (*suspend) (struct pnp_dev * dev, pm_message_t state);
	int (*resume) (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))

extern struct bus_type pnp_bus_type;

#if defined(CONFIG_PNP)

/* device management */
int pnp_device_attach(struct pnp_dev *pnp_dev);
void pnp_device_detach(struct pnp_dev *pnp_dev);
extern struct list_head pnp_global;
extern int pnp_platform_devices;

/* multidevice card support */
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 */
int pnp_auto_config_dev(struct pnp_dev *dev);
int pnp_start_dev(struct pnp_dev *dev);
int pnp_stop_dev(struct pnp_dev *dev);
int pnp_activate_dev(struct pnp_dev *dev);
int pnp_disable_dev(struct pnp_dev *dev);

/* protocol helpers */
int pnp_is_active(struct pnp_dev *dev);
int compare_pnp_id(struct pnp_id *pos, const char *id);
int pnp_register_driver(struct pnp_driver *drv);
void pnp_unregister_driver(struct pnp_driver *drv);

#else

/* device management */
static inline int pnp_device_attach(struct pnp_dev *pnp_dev) { return -ENODEV; }
static inline void pnp_device_detach(struct pnp_dev *pnp_dev) { }

#define pnp_platform_devices 0

/* multidevice card support */
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 int pnp_auto_config_dev(struct pnp_dev *dev) { return -ENODEV; }
static inline int pnp_start_dev(struct pnp_dev *dev) { return -ENODEV; }
static inline int pnp_stop_dev(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; }

/* 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_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 /* _LINUX_PNP_H */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Linux Plug and Play Support
	3	* Copyright by Adam Belay <ambx1@neo.rr.com>
1da177e4 LT	4	*/
	5
	6	#ifndef _LINUX_PNP_H
	7	#define _LINUX_PNP_H
	8
1da177e4 LT	9	#include <linux/device.h>
	10	#include <linux/list.h>
	11	#include <linux/errno.h>
	12	#include <linux/mod_devicetable.h>
	13
1da177e4 LT	14	#define PNP_NAME_LEN 50
	15
	16	struct pnp_protocol;
	17	struct pnp_dev;
02d83b5d	18	struct pnp_resource_table;
1da177e4	19
1da177e4 LT	20	/*
	21	* Resource Management
	22	*/
b90eca0a	23	struct resource pnp_get_resource(struct pnp_dev , unsigned int, unsigned int);
1da177e4	24
13575e81 BH	25	static inline int pnp_resource_valid(struct resource *res)
	26	{
	27	if (res && !(res->flags & IORESOURCE_UNSET))
	28	return 1;
	29	return 0;
	30	}
	31
	32	static inline resource_size_t pnp_resource_len(struct resource *res)
	33	{
	34	if (res->start == 0 && res->end == 0)
	35	return 0;
	36	return res->end - res->start + 1;
	37	}
	38
	39
	40	static inline resource_size_t pnp_port_start(struct pnp_dev *dev,
	41	unsigned int bar)
	42	{
20bfdbba BH	43	struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar);
	44
	45	if (pnp_resource_valid(res))
	46	return res->start;
	47	return 0;
13575e81 BH	48	}
	49
	50	static inline resource_size_t pnp_port_end(struct pnp_dev *dev,
	51	unsigned int bar)
	52	{
20bfdbba BH	53	struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar);
	54
	55	if (pnp_resource_valid(res))
	56	return res->end;
	57	return 0;
13575e81 BH	58	}
	59
	60	static inline unsigned long pnp_port_flags(struct pnp_dev *dev,
	61	unsigned int bar)
	62	{
20bfdbba BH	63	struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar);
	64
	65	if (pnp_resource_valid(res))
	66	return res->flags;
	67	return IORESOURCE_IO \| IORESOURCE_AUTO \| IORESOURCE_UNSET;
13575e81 BH	68	}
	69
	70	static inline int pnp_port_valid(struct pnp_dev *dev, unsigned int bar)
	71	{
	72	return pnp_resource_valid(pnp_get_resource(dev, IORESOURCE_IO, bar));
	73	}
	74
	75	static inline resource_size_t pnp_port_len(struct pnp_dev *dev,
	76	unsigned int bar)
	77	{
20bfdbba BH	78	struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar);
	79
	80	if (pnp_resource_valid(res))
	81	return pnp_resource_len(res);
	82	return 0;
13575e81 BH	83	}
	84
	85
	86	static inline resource_size_t pnp_mem_start(struct pnp_dev *dev,
	87	unsigned int bar)
	88	{
20bfdbba BH	89	struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar);
	90
	91	if (pnp_resource_valid(res))
	92	return res->start;
	93	return 0;
13575e81 BH	94	}
	95
	96	static inline resource_size_t pnp_mem_end(struct pnp_dev *dev,
	97	unsigned int bar)
	98	{
20bfdbba BH	99	struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar);
	100
	101	if (pnp_resource_valid(res))
	102	return res->end;
	103	return 0;
13575e81 BH	104	}
	105
	106	static inline unsigned long pnp_mem_flags(struct pnp_dev *dev, unsigned int bar)
	107	{
20bfdbba BH	108	struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar);
	109
	110	if (pnp_resource_valid(res))
	111	return res->flags;
	112	return IORESOURCE_MEM \| IORESOURCE_AUTO \| IORESOURCE_UNSET;
13575e81 BH	113	}
	114
	115	static inline int pnp_mem_valid(struct pnp_dev *dev, unsigned int bar)
	116	{
	117	return pnp_resource_valid(pnp_get_resource(dev, IORESOURCE_MEM, bar));
	118	}
	119
	120	static inline resource_size_t pnp_mem_len(struct pnp_dev *dev,
	121	unsigned int bar)
	122	{
20bfdbba BH	123	struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar);
	124
	125	if (pnp_resource_valid(res))
	126	return pnp_resource_len(res);
	127	return 0;
13575e81 BH	128	}
	129
	130
	131	static inline resource_size_t pnp_irq(struct pnp_dev *dev, unsigned int bar)
	132	{
20bfdbba BH	133	struct resource *res = pnp_get_resource(dev, IORESOURCE_IRQ, bar);
	134
	135	if (pnp_resource_valid(res))
	136	return res->start;
	137	return -1;
13575e81 BH	138	}
	139
	140	static inline unsigned long pnp_irq_flags(struct pnp_dev *dev, unsigned int bar)
	141	{
20bfdbba BH	142	struct resource *res = pnp_get_resource(dev, IORESOURCE_IRQ, bar);
	143
	144	if (pnp_resource_valid(res))
	145	return res->flags;
	146	return IORESOURCE_IRQ \| IORESOURCE_AUTO \| IORESOURCE_UNSET;
13575e81 BH	147	}
	148
	149	static inline int pnp_irq_valid(struct pnp_dev *dev, unsigned int bar)
	150	{
	151	return pnp_resource_valid(pnp_get_resource(dev, IORESOURCE_IRQ, bar));
	152	}
	153
	154
	155	static inline resource_size_t pnp_dma(struct pnp_dev *dev, unsigned int bar)
	156	{
20bfdbba BH	157	struct resource *res = pnp_get_resource(dev, IORESOURCE_DMA, bar);
	158
	159	if (pnp_resource_valid(res))
	160	return res->start;
	161	return -1;
13575e81 BH	162	}
	163
	164	static inline unsigned long pnp_dma_flags(struct pnp_dev *dev, unsigned int bar)
	165	{
20bfdbba BH	166	struct resource *res = pnp_get_resource(dev, IORESOURCE_DMA, bar);
	167
	168	if (pnp_resource_valid(res))
	169	return res->flags;
	170	return IORESOURCE_DMA \| IORESOURCE_AUTO \| IORESOURCE_UNSET;
13575e81 BH	171	}
	172
	173	static inline int pnp_dma_valid(struct pnp_dev *dev, unsigned int bar)
	174	{
	175	return pnp_resource_valid(pnp_get_resource(dev, IORESOURCE_DMA, bar));
	176	}
1da177e4	177
1da177e4 LT	178
	179	#define PNP_PORT_FLAG_16BITADDR (1<<0)
	180	#define PNP_PORT_FLAG_FIXED (1<<1)
	181
	182	struct pnp_port {
9dd78466 BH	183	unsigned short min; /* min base number */
	184	unsigned short max; /* max base number */
	185	unsigned char align; /* align boundary */
	186	unsigned char size; /* size of range */
	187	unsigned char flags; /* port flags */
	188	unsigned char pad; /* pad */
	189	struct pnp_port next; / next port */
1da177e4 LT	190	};
	191
	192	#define PNP_IRQ_NR 256
	193	struct pnp_irq {
07d4e9af	194	DECLARE_BITMAP(map, PNP_IRQ_NR); /* bitmask for IRQ lines */
9dd78466 BH	195	unsigned char flags; /* IRQ flags */
	196	unsigned char pad; /* pad */
	197	struct pnp_irq next; / next IRQ */
1da177e4 LT	198	};
	199
	200	struct pnp_dma {
9dd78466 BH	201	unsigned char map; /* bitmask for DMA channels */
	202	unsigned char flags; /* DMA flags */
	203	struct pnp_dma next; / next port */
1da177e4 LT	204	};
	205
	206	struct pnp_mem {
9dd78466 BH	207	unsigned int min; /* min base number */
	208	unsigned int max; /* max base number */
	209	unsigned int align; /* align boundary */
	210	unsigned int size; /* size of range */
	211	unsigned char flags; /* memory flags */
	212	unsigned char pad; /* pad */
	213	struct pnp_mem next; / next memory resource */
1da177e4 LT	214	};
	215
	216	#define PNP_RES_PRIORITY_PREFERRED 0
	217	#define PNP_RES_PRIORITY_ACCEPTABLE 1
	218	#define PNP_RES_PRIORITY_FUNCTIONAL 2
	219	#define PNP_RES_PRIORITY_INVALID 65535
	220
	221	struct pnp_option {
	222	unsigned short priority; /* priority */
07d4e9af BH	223	struct pnp_port port; / first port */
	224	struct pnp_irq irq; / first IRQ */
	225	struct pnp_dma dma; / first DMA */
	226	struct pnp_mem mem; / first memory resource */
1da177e4 LT	227	struct pnp_option next; / used to chain dependent resources */
	228	};
	229
1da177e4	230	/*
fd3f8984	231	* Device Management
1da177e4 LT	232	*/
	233
	234	struct pnp_card {
07d4e9af BH	235	struct device dev; /* Driver Model device interface */
07d4e9af BH	236	unsigned char number; /* used as an index, must be unique */
1da177e4 LT	237	struct list_head global_list; /* node in global list of cards */
	238	struct list_head protocol_list; /* node in protocol's list of cards */
	239	struct list_head devices; /* devices attached to the card */
	240
9dd78466	241	struct pnp_protocol *protocol;
07d4e9af	242	struct pnp_id id; / contains supported EISA IDs */
1da177e4 LT	243
1da177e4 LT	244	char name[PNP_NAME_LEN]; /* contains a human-readable name */
07d4e9af	245	unsigned char pnpver; /* Plug & Play version */
9dd78466	246	unsigned char productver; /* product version */
07d4e9af BH	247	unsigned int serial; /* serial number */
07d4e9af BH	248	unsigned char checksum; /* if zero - checksum passed */
1da177e4 LT	249	struct proc_dir_entry procdir; / directory entry in /proc/bus/isapnp */
	250	};
	251
	252	#define global_to_pnp_card(n) list_entry(n, struct pnp_card, global_list)
	253	#define protocol_to_pnp_card(n) list_entry(n, struct pnp_card, protocol_list)
	254	#define to_pnp_card(n) container_of(n, struct pnp_card, dev)
	255	#define pnp_for_each_card(card) \
	256	for((card) = global_to_pnp_card(pnp_cards.next); \
	257	(card) != global_to_pnp_card(&pnp_cards); \
	258	(card) = global_to_pnp_card((card)->global_list.next))
	259
	260	struct pnp_card_link {
9dd78466 BH	261	struct pnp_card *card;
	262	struct pnp_card_driver *driver;
	263	void *driver_data;
4c98cfef	264	pm_message_t pm_state;
1da177e4 LT	265	};
1da177e4 LT	266
9dd78466	267	static inline void pnp_get_card_drvdata(struct pnp_card_link pcard)
1da177e4 LT	268	{
	269	return pcard->driver_data;
	270	}
	271
9dd78466	272	static inline void pnp_set_card_drvdata(struct pnp_card_link pcard, void data)
1da177e4 LT	273	{
	274	pcard->driver_data = data;
	275	}
	276
	277	struct pnp_dev {
07d4e9af	278	struct device dev; /* Driver Model device interface */
2e17c550	279	u64 dma_mask;
544451a1	280	unsigned int number; /* used as an index, must be unique */
1da177e4 LT	281	int status;
	282
	283	struct list_head global_list; /* node in global list of devices */
	284	struct list_head protocol_list; /* node in list of device's protocol */
	285	struct list_head card_list; /* node in card's list of devices */
	286	struct list_head rdev_list; /* node in cards list of requested devices */
	287
9dd78466 BH	288	struct pnp_protocol *protocol;
	289	struct pnp_card card; / card the device is attached to, none if NULL */
	290	struct pnp_driver *driver;
	291	struct pnp_card_link *card_link;
1da177e4	292
07d4e9af	293	struct pnp_id id; / supported EISA IDs */
1da177e4 LT	294
	295	int active;
	296	int capabilities;
9dd78466 BH	297	struct pnp_option *independent;
9dd78466 BH	298	struct pnp_option *dependent;
02d83b5d	299	struct pnp_resource_table *res;
1da177e4 LT	300
1da177e4 LT	301	char name[PNP_NAME_LEN]; /* contains a human-readable name */
07d4e9af	302	int flags; /* used by protocols */
1da177e4 LT	303	struct proc_dir_entry procent; / device entry in /proc/bus/isapnp */
	304	void *data;
	305	};
	306
	307	#define global_to_pnp_dev(n) list_entry(n, struct pnp_dev, global_list)
	308	#define card_to_pnp_dev(n) list_entry(n, struct pnp_dev, card_list)
	309	#define protocol_to_pnp_dev(n) list_entry(n, struct pnp_dev, protocol_list)
	310	#define to_pnp_dev(n) container_of(n, struct pnp_dev, dev)
	311	#define pnp_for_each_dev(dev) \
	312	for((dev) = global_to_pnp_dev(pnp_global.next); \
	313	(dev) != global_to_pnp_dev(&pnp_global); \
	314	(dev) = global_to_pnp_dev((dev)->global_list.next))
	315	#define card_for_each_dev(card,dev) \
	316	for((dev) = card_to_pnp_dev((card)->devices.next); \
	317	(dev) != card_to_pnp_dev(&(card)->devices); \
	318	(dev) = card_to_pnp_dev((dev)->card_list.next))
	319	#define pnp_dev_name(dev) (dev)->name
	320
9dd78466	321	static inline void pnp_get_drvdata(struct pnp_dev pdev)
1da177e4 LT	322	{
	323	return dev_get_drvdata(&pdev->dev);
	324	}
	325
9dd78466	326	static inline void pnp_set_drvdata(struct pnp_dev pdev, void data)
1da177e4 LT	327	{
	328	dev_set_drvdata(&pdev->dev, data);
	329	}
	330
	331	struct pnp_fixup {
	332	char id[7];
9dd78466	333	void (quirk_function) (struct pnp_dev dev); /* fixup function */
1da177e4 LT	334	};
	335
	336	/* config parameters */
	337	#define PNP_CONFIG_NORMAL 0x0001
	338	#define PNP_CONFIG_FORCE 0x0002 /* disables validity checking */
	339
	340	/* capabilities */
	341	#define PNP_READ 0x0001
	342	#define PNP_WRITE 0x0002
	343	#define PNP_DISABLE 0x0004
	344	#define PNP_CONFIGURABLE 0x0008
	345	#define PNP_REMOVABLE 0x0010
	346
402b310c	347	#define pnp_can_read(dev) (((dev)->protocol->get) && \
1da177e4	348	((dev)->capabilities & PNP_READ))
402b310c	349	#define pnp_can_write(dev) (((dev)->protocol->set) && \
1da177e4	350	((dev)->capabilities & PNP_WRITE))
402b310c	351	#define pnp_can_disable(dev) (((dev)->protocol->disable) && \
1da177e4 LT	352	((dev)->capabilities & PNP_DISABLE))
	353	#define pnp_can_configure(dev) ((!(dev)->active) && \
	354	((dev)->capabilities & PNP_CONFIGURABLE))
	355
	356	#ifdef CONFIG_ISAPNP
	357	extern struct pnp_protocol isapnp_protocol;
	358	#define pnp_device_is_isapnp(dev) ((dev)->protocol == (&isapnp_protocol))
	359	#else
	360	#define pnp_device_is_isapnp(dev) 0
	361	#endif
b3bd86e2	362	extern struct mutex pnp_res_mutex;
1da177e4 LT	363
	364	#ifdef CONFIG_PNPBIOS
	365	extern struct pnp_protocol pnpbios_protocol;
	366	#define pnp_device_is_pnpbios(dev) ((dev)->protocol == (&pnpbios_protocol))
	367	#else
	368	#define pnp_device_is_pnpbios(dev) 0
	369	#endif
	370
1da177e4 LT	371	/* status */
	372	#define PNP_READY 0x0000
	373	#define PNP_ATTACHED 0x0001
	374	#define PNP_BUSY 0x0002
	375	#define PNP_FAULTY 0x0004
	376
	377	/* isapnp specific macros */
	378
	379	#define isapnp_card_number(dev) ((dev)->card ? (dev)->card->number : -1)
	380	#define isapnp_csn_number(dev) ((dev)->number)
	381
	382	/*
	383	* Driver Management
	384	*/
	385
	386	struct pnp_id {
	387	char id[PNP_ID_LEN];
9dd78466	388	struct pnp_id *next;
1da177e4 LT	389	};
	390
	391	struct pnp_driver {
9dd78466	392	char *name;
1da177e4 LT	393	const struct pnp_device_id *id_table;
1da177e4 LT	394	unsigned int flags;
07d4e9af BH	395	int (probe) (struct pnp_dev dev, const struct pnp_device_id *dev_id);
	396	void (remove) (struct pnp_dev dev);
	397	int (suspend) (struct pnp_dev dev, pm_message_t state);
	398	int (resume) (struct pnp_dev dev);
1da177e4 LT	399	struct device_driver driver;
	400	};
	401
	402	#define to_pnp_driver(drv) container_of(drv, struct pnp_driver, driver)
	403
	404	struct pnp_card_driver {
	405	struct list_head global_list;
9dd78466	406	char *name;
1da177e4 LT	407	const struct pnp_card_device_id *id_table;
1da177e4 LT	408	unsigned int flags;
07d4e9af BH	409	int (probe) (struct pnp_card_link card,
	410	const struct pnp_card_device_id *card_id);
	411	void (remove) (struct pnp_card_link card);
	412	int (suspend) (struct pnp_card_link card, pm_message_t state);
	413	int (resume) (struct pnp_card_link card);
1da177e4 LT	414	struct pnp_driver link;
	415	};
	416
	417	#define to_pnp_card_driver(drv) container_of(drv, struct pnp_card_driver, link)
	418
	419	/* pnp driver flags */
	420	#define PNP_DRIVER_RES_DO_NOT_CHANGE 0x0001 /* do not change the state of the device */
	421	#define PNP_DRIVER_RES_DISABLE 0x0003 /* ensure the device is disabled */
	422
1da177e4 LT	423	/*
	424	* Protocol Management
	425	*/
	426
	427	struct pnp_protocol {
9dd78466 BH	428	struct list_head protocol_list;
9dd78466 BH	429	char *name;
1da177e4 LT	430
1da177e4 LT	431	/* resource control functions */
59284cb4 BH	432	int (get) (struct pnp_dev dev);
59284cb4 BH	433	int (set) (struct pnp_dev dev);
07d4e9af	434	int (disable) (struct pnp_dev dev);
1da177e4	435
fc30e68e	436	/* protocol specific suspend/resume */
9dd78466 BH	437	int (suspend) (struct pnp_dev dev, pm_message_t state);
9dd78466 BH	438	int (resume) (struct pnp_dev dev);
fc30e68e	439
1da177e4	440	/* used by pnp layer only (look but don't touch) */
9dd78466 BH	441	unsigned char number; /* protocol number */
	442	struct device dev; /* link to driver model */
	443	struct list_head cards;
	444	struct list_head devices;
1da177e4 LT	445	};
	446
	447	#define to_pnp_protocol(n) list_entry(n, struct pnp_protocol, protocol_list)
	448	#define protocol_for_each_card(protocol,card) \
	449	for((card) = protocol_to_pnp_card((protocol)->cards.next); \
	450	(card) != protocol_to_pnp_card(&(protocol)->cards); \
	451	(card) = protocol_to_pnp_card((card)->protocol_list.next))
	452	#define protocol_for_each_dev(protocol,dev) \
	453	for((dev) = protocol_to_pnp_dev((protocol)->devices.next); \
	454	(dev) != protocol_to_pnp_dev(&(protocol)->devices); \
	455	(dev) = protocol_to_pnp_dev((dev)->protocol_list.next))
	456
cbcdc1de DB	457	extern struct bus_type pnp_bus_type;
cbcdc1de DB	458
1da177e4 LT	459	#if defined(CONFIG_PNP)
	460
	461	/* device management */
1da177e4 LT	462	int pnp_device_attach(struct pnp_dev *pnp_dev);
	463	void pnp_device_detach(struct pnp_dev *pnp_dev);
	464	extern struct list_head pnp_global;
8f81dd14	465	extern int pnp_platform_devices;
1da177e4 LT	466
1da177e4 LT	467	/* multidevice card support */
9dd78466 BH	468	struct pnp_dev pnp_request_card_device(struct pnp_card_link clink,
	469	const char id, struct pnp_dev from);
	470	void pnp_release_card_device(struct pnp_dev *dev);
	471	int pnp_register_card_driver(struct pnp_card_driver *drv);
	472	void pnp_unregister_card_driver(struct pnp_card_driver *drv);
1da177e4 LT	473	extern struct list_head pnp_cards;
	474
	475	/* resource management */
1da177e4	476	int pnp_auto_config_dev(struct pnp_dev *dev);
68094e32 PO	477	int pnp_start_dev(struct pnp_dev *dev);
68094e32 PO	478	int pnp_stop_dev(struct pnp_dev *dev);
1da177e4 LT	479	int pnp_activate_dev(struct pnp_dev *dev);
1da177e4 LT	480	int pnp_disable_dev(struct pnp_dev *dev);
1da177e4 LT	481
1da177e4 LT	482	/* protocol helpers */
9dd78466 BH	483	int pnp_is_active(struct pnp_dev *dev);
9dd78466 BH	484	int compare_pnp_id(struct pnp_id pos, const char id);
1da177e4 LT	485	int pnp_register_driver(struct pnp_driver *drv);
	486	void pnp_unregister_driver(struct pnp_driver *drv);
	487
	488	#else
	489
	490	/* device management */
07d4e9af BH	491	static inline int pnp_device_attach(struct pnp_dev *pnp_dev) { return -ENODEV; }
07d4e9af BH	492	static inline void pnp_device_detach(struct pnp_dev *pnp_dev) { }
9dd78466	493
8f81dd14	494	#define pnp_platform_devices 0
1da177e4 LT	495
1da177e4 LT	496	/* multidevice card support */
07d4e9af BH	497	static inline struct pnp_dev pnp_request_card_device(struct pnp_card_link clink, const char id, struct pnp_dev from) { return NULL; }
	498	static inline void pnp_release_card_device(struct pnp_dev *dev) { }
	499	static inline int pnp_register_card_driver(struct pnp_card_driver *drv) { return -ENODEV; }
	500	static inline void pnp_unregister_card_driver(struct pnp_card_driver *drv) { }
1da177e4 LT	501
1da177e4 LT	502	/* resource management */
07d4e9af	503	static inline int pnp_auto_config_dev(struct pnp_dev *dev) { return -ENODEV; }
07d4e9af BH	504	static inline int pnp_start_dev(struct pnp_dev *dev) { return -ENODEV; }
	505	static inline int pnp_stop_dev(struct pnp_dev *dev) { return -ENODEV; }
	506	static inline int pnp_activate_dev(struct pnp_dev *dev) { return -ENODEV; }
	507	static inline int pnp_disable_dev(struct pnp_dev *dev) { return -ENODEV; }
1da177e4 LT	508
1da177e4 LT	509	/* protocol helpers */
07d4e9af BH	510	static inline int pnp_is_active(struct pnp_dev *dev) { return 0; }
07d4e9af BH	511	static inline int compare_pnp_id(struct pnp_id pos, const char id) { return -ENODEV; }
07d4e9af BH	512	static inline int pnp_register_driver(struct pnp_driver *drv) { return -ENODEV; }
07d4e9af BH	513	static inline void pnp_unregister_driver(struct pnp_driver *drv) { }
1da177e4 LT	514
	515	#endif /* CONFIG_PNP */
	516
1da177e4 LT	517	#define pnp_err(format, arg...) printk(KERN_ERR "pnp: " format "\n" , ## arg)
	518	#define pnp_info(format, arg...) printk(KERN_INFO "pnp: " format "\n" , ## arg)
	519	#define pnp_warn(format, arg...) printk(KERN_WARNING "pnp: " format "\n" , ## arg)
	520
e139aa59	521	#ifdef CONFIG_PNP_DEBUG
1da177e4 LT	522	#define pnp_dbg(format, arg...) printk(KERN_DEBUG "pnp: " format "\n" , ## arg)
	523	#else
	524	#define pnp_dbg(format, arg...) do {} while (0)
	525	#endif
	526
1da177e4	527	#endif /* _LINUX_PNP_H */