[GitHub/mt8127/android_kernel_alcatel_ttab.git] / include / linux / pnp.h

/*
 * Linux Plug and Play Support
 * Copyright by Adam Belay <ambx1@neo.rr.com>
 * Copyright (C) 2008 Hewlett-Packard Development Company, L.P.
 *	Bjorn Helgaas <bjorn.helgaas@hp.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;

/*
 * Resource Management
 */
#ifdef CONFIG_PNP
struct resource *pnp_get_resource(struct pnp_dev *, unsigned int, unsigned int);
#else
static inline struct resource *pnp_get_resource(struct pnp_dev *dev, unsigned int type, unsigned int num)
{
	return NULL;
}
#endif

static inline int pnp_resource_valid(struct resource *res)
{
	if (res)
		return 1;
	return 0;
}

static inline int pnp_resource_enabled(struct resource *res)
{
	if (res && !(res->flags & IORESOURCE_DISABLED))
		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;
}

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;
}

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;
}

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;
}

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


/*
 * 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;
	unsigned int num_dependent_sets;
	struct list_head resources;
	struct list_head options;

	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_possible_config(struct pnp_dev *dev, int type, resource_size_t base,
			resource_size_t size);
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_possible_config(struct pnp_dev *dev, int type,
				      resource_size_t base,
				      resource_size_t size) { return 0; }
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>
1f32ca31 BH	4	* Copyright (C) 2008 Hewlett-Packard Development Company, L.P.
1f32ca31 BH	5	* Bjorn Helgaas <bjorn.helgaas@hp.com>
1da177e4 LT	6	*/
	7
	8	#ifndef _LINUX_PNP_H
	9	#define _LINUX_PNP_H
	10
1da177e4 LT	11	#include <linux/device.h>
	12	#include <linux/list.h>
	13	#include <linux/errno.h>
	14	#include <linux/mod_devicetable.h>
	15
1da177e4 LT	16	#define PNP_NAME_LEN 50
	17
	18	struct pnp_protocol;
	19	struct pnp_dev;
	20
1da177e4 LT	21	/*
	22	* Resource Management
	23	*/
ef3d7714	24	#ifdef CONFIG_PNP
b90eca0a	25	struct resource pnp_get_resource(struct pnp_dev , unsigned int, unsigned int);
ef3d7714 DM	26	#else
	27	static inline struct resource pnp_get_resource(struct pnp_dev dev, unsigned int type, unsigned int num)
	28	{
	29	return NULL;
	30	}
	31	#endif
1da177e4	32
13575e81 BH	33	static inline int pnp_resource_valid(struct resource *res)
13575e81 BH	34	{
aee3ad81 BH	35	if (res)
	36	return 1;
	37	return 0;
	38	}
	39
	40	static inline int pnp_resource_enabled(struct resource *res)
	41	{
	42	if (res && !(res->flags & IORESOURCE_DISABLED))
13575e81 BH	43	return 1;
	44	return 0;
	45	}
	46
	47	static inline resource_size_t pnp_resource_len(struct resource *res)
	48	{
	49	if (res->start == 0 && res->end == 0)
	50	return 0;
	51	return res->end - res->start + 1;
	52	}
	53
	54
	55	static inline resource_size_t pnp_port_start(struct pnp_dev *dev,
	56	unsigned int bar)
	57	{
20bfdbba BH	58	struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar);
	59
	60	if (pnp_resource_valid(res))
	61	return res->start;
	62	return 0;
13575e81 BH	63	}
	64
	65	static inline resource_size_t pnp_port_end(struct pnp_dev *dev,
	66	unsigned int bar)
	67	{
20bfdbba BH	68	struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar);
	69
	70	if (pnp_resource_valid(res))
	71	return res->end;
	72	return 0;
13575e81 BH	73	}
	74
	75	static inline unsigned long pnp_port_flags(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 res->flags;
aee3ad81	82	return IORESOURCE_IO \| IORESOURCE_AUTO;
13575e81 BH	83	}
	84
	85	static inline int pnp_port_valid(struct pnp_dev *dev, unsigned int bar)
	86	{
	87	return pnp_resource_valid(pnp_get_resource(dev, IORESOURCE_IO, bar));
	88	}
	89
	90	static inline resource_size_t pnp_port_len(struct pnp_dev *dev,
	91	unsigned int bar)
	92	{
20bfdbba BH	93	struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar);
	94
	95	if (pnp_resource_valid(res))
	96	return pnp_resource_len(res);
	97	return 0;
13575e81 BH	98	}
	99
	100
	101	static inline resource_size_t pnp_mem_start(struct pnp_dev *dev,
	102	unsigned int bar)
	103	{
20bfdbba BH	104	struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar);
	105
	106	if (pnp_resource_valid(res))
	107	return res->start;
	108	return 0;
13575e81 BH	109	}
	110
	111	static inline resource_size_t pnp_mem_end(struct pnp_dev *dev,
	112	unsigned int bar)
	113	{
20bfdbba BH	114	struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar);
	115
	116	if (pnp_resource_valid(res))
	117	return res->end;
	118	return 0;
13575e81 BH	119	}
	120
	121	static inline unsigned long pnp_mem_flags(struct pnp_dev *dev, 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 res->flags;
aee3ad81	127	return IORESOURCE_MEM \| IORESOURCE_AUTO;
13575e81 BH	128	}
	129
	130	static inline int pnp_mem_valid(struct pnp_dev *dev, unsigned int bar)
	131	{
	132	return pnp_resource_valid(pnp_get_resource(dev, IORESOURCE_MEM, bar));
	133	}
	134
	135	static inline resource_size_t pnp_mem_len(struct pnp_dev *dev,
	136	unsigned int bar)
	137	{
20bfdbba BH	138	struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar);
	139
	140	if (pnp_resource_valid(res))
	141	return pnp_resource_len(res);
	142	return 0;
13575e81 BH	143	}
	144
	145
	146	static inline resource_size_t pnp_irq(struct pnp_dev *dev, unsigned int bar)
	147	{
20bfdbba BH	148	struct resource *res = pnp_get_resource(dev, IORESOURCE_IRQ, bar);
	149
	150	if (pnp_resource_valid(res))
	151	return res->start;
	152	return -1;
13575e81 BH	153	}
	154
	155	static inline unsigned long pnp_irq_flags(struct pnp_dev *dev, unsigned int bar)
	156	{
20bfdbba BH	157	struct resource *res = pnp_get_resource(dev, IORESOURCE_IRQ, bar);
	158
	159	if (pnp_resource_valid(res))
	160	return res->flags;
aee3ad81	161	return IORESOURCE_IRQ \| IORESOURCE_AUTO;
13575e81 BH	162	}
	163
	164	static inline int pnp_irq_valid(struct pnp_dev *dev, unsigned int bar)
	165	{
	166	return pnp_resource_valid(pnp_get_resource(dev, IORESOURCE_IRQ, bar));
	167	}
	168
	169
	170	static inline resource_size_t pnp_dma(struct pnp_dev *dev, unsigned int bar)
	171	{
20bfdbba BH	172	struct resource *res = pnp_get_resource(dev, IORESOURCE_DMA, bar);
	173
	174	if (pnp_resource_valid(res))
	175	return res->start;
	176	return -1;
13575e81 BH	177	}
	178
	179	static inline unsigned long pnp_dma_flags(struct pnp_dev *dev, unsigned int bar)
	180	{
20bfdbba BH	181	struct resource *res = pnp_get_resource(dev, IORESOURCE_DMA, bar);
	182
	183	if (pnp_resource_valid(res))
	184	return res->flags;
aee3ad81	185	return IORESOURCE_DMA \| IORESOURCE_AUTO;
13575e81 BH	186	}
	187
	188	static inline int pnp_dma_valid(struct pnp_dev *dev, unsigned int bar)
	189	{
	190	return pnp_resource_valid(pnp_get_resource(dev, IORESOURCE_DMA, bar));
	191	}
1da177e4	192
1da177e4	193
1da177e4	194	/*
fd3f8984	195	* Device Management
1da177e4 LT	196	*/
	197
	198	struct pnp_card {
07d4e9af BH	199	struct device dev; /* Driver Model device interface */
07d4e9af BH	200	unsigned char number; /* used as an index, must be unique */
1da177e4 LT	201	struct list_head global_list; /* node in global list of cards */
	202	struct list_head protocol_list; /* node in protocol's list of cards */
	203	struct list_head devices; /* devices attached to the card */
	204
9dd78466	205	struct pnp_protocol *protocol;
07d4e9af	206	struct pnp_id id; / contains supported EISA IDs */
1da177e4 LT	207
1da177e4 LT	208	char name[PNP_NAME_LEN]; /* contains a human-readable name */
07d4e9af	209	unsigned char pnpver; /* Plug & Play version */
9dd78466	210	unsigned char productver; /* product version */
07d4e9af BH	211	unsigned int serial; /* serial number */
07d4e9af BH	212	unsigned char checksum; /* if zero - checksum passed */
1da177e4 LT	213	struct proc_dir_entry procdir; / directory entry in /proc/bus/isapnp */
	214	};
	215
	216	#define global_to_pnp_card(n) list_entry(n, struct pnp_card, global_list)
	217	#define protocol_to_pnp_card(n) list_entry(n, struct pnp_card, protocol_list)
	218	#define to_pnp_card(n) container_of(n, struct pnp_card, dev)
	219	#define pnp_for_each_card(card) \
	220	for((card) = global_to_pnp_card(pnp_cards.next); \
	221	(card) != global_to_pnp_card(&pnp_cards); \
	222	(card) = global_to_pnp_card((card)->global_list.next))
	223
	224	struct pnp_card_link {
9dd78466 BH	225	struct pnp_card *card;
	226	struct pnp_card_driver *driver;
	227	void *driver_data;
4c98cfef	228	pm_message_t pm_state;
1da177e4 LT	229	};
1da177e4 LT	230
9dd78466	231	static inline void pnp_get_card_drvdata(struct pnp_card_link pcard)
1da177e4 LT	232	{
	233	return pcard->driver_data;
	234	}
	235
9dd78466	236	static inline void pnp_set_card_drvdata(struct pnp_card_link pcard, void data)
1da177e4 LT	237	{
	238	pcard->driver_data = data;
	239	}
	240
	241	struct pnp_dev {
07d4e9af	242	struct device dev; /* Driver Model device interface */
2e17c550	243	u64 dma_mask;
544451a1	244	unsigned int number; /* used as an index, must be unique */
1da177e4 LT	245	int status;
	246
	247	struct list_head global_list; /* node in global list of devices */
	248	struct list_head protocol_list; /* node in list of device's protocol */
	249	struct list_head card_list; /* node in card's list of devices */
	250	struct list_head rdev_list; /* node in cards list of requested devices */
	251
9dd78466 BH	252	struct pnp_protocol *protocol;
	253	struct pnp_card card; / card the device is attached to, none if NULL */
	254	struct pnp_driver *driver;
	255	struct pnp_card_link *card_link;
1da177e4	256
07d4e9af	257	struct pnp_id id; / supported EISA IDs */
1da177e4 LT	258
	259	int active;
	260	int capabilities;
1f32ca31	261	unsigned int num_dependent_sets;
aee3ad81	262	struct list_head resources;
1f32ca31	263	struct list_head options;
1da177e4 LT	264
1da177e4 LT	265	char name[PNP_NAME_LEN]; /* contains a human-readable name */
07d4e9af	266	int flags; /* used by protocols */
1da177e4 LT	267	struct proc_dir_entry procent; / device entry in /proc/bus/isapnp */
	268	void *data;
	269	};
	270
	271	#define global_to_pnp_dev(n) list_entry(n, struct pnp_dev, global_list)
	272	#define card_to_pnp_dev(n) list_entry(n, struct pnp_dev, card_list)
	273	#define protocol_to_pnp_dev(n) list_entry(n, struct pnp_dev, protocol_list)
	274	#define to_pnp_dev(n) container_of(n, struct pnp_dev, dev)
	275	#define pnp_for_each_dev(dev) \
	276	for((dev) = global_to_pnp_dev(pnp_global.next); \
	277	(dev) != global_to_pnp_dev(&pnp_global); \
	278	(dev) = global_to_pnp_dev((dev)->global_list.next))
	279	#define card_for_each_dev(card,dev) \
	280	for((dev) = card_to_pnp_dev((card)->devices.next); \
	281	(dev) != card_to_pnp_dev(&(card)->devices); \
	282	(dev) = card_to_pnp_dev((dev)->card_list.next))
	283	#define pnp_dev_name(dev) (dev)->name
	284
9dd78466	285	static inline void pnp_get_drvdata(struct pnp_dev pdev)
1da177e4 LT	286	{
	287	return dev_get_drvdata(&pdev->dev);
	288	}
	289
9dd78466	290	static inline void pnp_set_drvdata(struct pnp_dev pdev, void data)
1da177e4 LT	291	{
	292	dev_set_drvdata(&pdev->dev, data);
	293	}
	294
	295	struct pnp_fixup {
	296	char id[7];
9dd78466	297	void (quirk_function) (struct pnp_dev dev); /* fixup function */
1da177e4 LT	298	};
	299
	300	/* config parameters */
	301	#define PNP_CONFIG_NORMAL 0x0001
	302	#define PNP_CONFIG_FORCE 0x0002 /* disables validity checking */
	303
	304	/* capabilities */
	305	#define PNP_READ 0x0001
	306	#define PNP_WRITE 0x0002
	307	#define PNP_DISABLE 0x0004
	308	#define PNP_CONFIGURABLE 0x0008
	309	#define PNP_REMOVABLE 0x0010
	310
402b310c	311	#define pnp_can_read(dev) (((dev)->protocol->get) && \
1da177e4	312	((dev)->capabilities & PNP_READ))
402b310c	313	#define pnp_can_write(dev) (((dev)->protocol->set) && \
1da177e4	314	((dev)->capabilities & PNP_WRITE))
402b310c	315	#define pnp_can_disable(dev) (((dev)->protocol->disable) && \
1da177e4 LT	316	((dev)->capabilities & PNP_DISABLE))
	317	#define pnp_can_configure(dev) ((!(dev)->active) && \
	318	((dev)->capabilities & PNP_CONFIGURABLE))
	319
	320	#ifdef CONFIG_ISAPNP
	321	extern struct pnp_protocol isapnp_protocol;
	322	#define pnp_device_is_isapnp(dev) ((dev)->protocol == (&isapnp_protocol))
	323	#else
	324	#define pnp_device_is_isapnp(dev) 0
	325	#endif
b3bd86e2	326	extern struct mutex pnp_res_mutex;
1da177e4 LT	327
	328	#ifdef CONFIG_PNPBIOS
	329	extern struct pnp_protocol pnpbios_protocol;
	330	#define pnp_device_is_pnpbios(dev) ((dev)->protocol == (&pnpbios_protocol))
	331	#else
	332	#define pnp_device_is_pnpbios(dev) 0
	333	#endif
	334
1da177e4 LT	335	/* status */
	336	#define PNP_READY 0x0000
	337	#define PNP_ATTACHED 0x0001
	338	#define PNP_BUSY 0x0002
	339	#define PNP_FAULTY 0x0004
	340
	341	/* isapnp specific macros */
	342
	343	#define isapnp_card_number(dev) ((dev)->card ? (dev)->card->number : -1)
	344	#define isapnp_csn_number(dev) ((dev)->number)
	345
	346	/*
	347	* Driver Management
	348	*/
	349
	350	struct pnp_id {
	351	char id[PNP_ID_LEN];
9dd78466	352	struct pnp_id *next;
1da177e4 LT	353	};
	354
	355	struct pnp_driver {
9dd78466	356	char *name;
1da177e4 LT	357	const struct pnp_device_id *id_table;
1da177e4 LT	358	unsigned int flags;
07d4e9af BH	359	int (probe) (struct pnp_dev dev, const struct pnp_device_id *dev_id);
	360	void (remove) (struct pnp_dev dev);
	361	int (suspend) (struct pnp_dev dev, pm_message_t state);
	362	int (resume) (struct pnp_dev dev);
1da177e4 LT	363	struct device_driver driver;
	364	};
	365
	366	#define to_pnp_driver(drv) container_of(drv, struct pnp_driver, driver)
	367
	368	struct pnp_card_driver {
	369	struct list_head global_list;
9dd78466	370	char *name;
1da177e4 LT	371	const struct pnp_card_device_id *id_table;
1da177e4 LT	372	unsigned int flags;
07d4e9af BH	373	int (probe) (struct pnp_card_link card,
	374	const struct pnp_card_device_id *card_id);
	375	void (remove) (struct pnp_card_link card);
	376	int (suspend) (struct pnp_card_link card, pm_message_t state);
	377	int (resume) (struct pnp_card_link card);
1da177e4 LT	378	struct pnp_driver link;
	379	};
	380
	381	#define to_pnp_card_driver(drv) container_of(drv, struct pnp_card_driver, link)
	382
	383	/* pnp driver flags */
	384	#define PNP_DRIVER_RES_DO_NOT_CHANGE 0x0001 /* do not change the state of the device */
	385	#define PNP_DRIVER_RES_DISABLE 0x0003 /* ensure the device is disabled */
	386
1da177e4 LT	387	/*
	388	* Protocol Management
	389	*/
	390
	391	struct pnp_protocol {
9dd78466 BH	392	struct list_head protocol_list;
9dd78466 BH	393	char *name;
1da177e4 LT	394
1da177e4 LT	395	/* resource control functions */
59284cb4 BH	396	int (get) (struct pnp_dev dev);
59284cb4 BH	397	int (set) (struct pnp_dev dev);
07d4e9af	398	int (disable) (struct pnp_dev dev);
1da177e4	399
fc30e68e	400	/* protocol specific suspend/resume */
9dd78466 BH	401	int (suspend) (struct pnp_dev dev, pm_message_t state);
9dd78466 BH	402	int (resume) (struct pnp_dev dev);
fc30e68e	403
1da177e4	404	/* used by pnp layer only (look but don't touch) */
9dd78466 BH	405	unsigned char number; /* protocol number */
	406	struct device dev; /* link to driver model */
	407	struct list_head cards;
	408	struct list_head devices;
1da177e4 LT	409	};
	410
	411	#define to_pnp_protocol(n) list_entry(n, struct pnp_protocol, protocol_list)
	412	#define protocol_for_each_card(protocol,card) \
	413	for((card) = protocol_to_pnp_card((protocol)->cards.next); \
	414	(card) != protocol_to_pnp_card(&(protocol)->cards); \
	415	(card) = protocol_to_pnp_card((card)->protocol_list.next))
	416	#define protocol_for_each_dev(protocol,dev) \
	417	for((dev) = protocol_to_pnp_dev((protocol)->devices.next); \
	418	(dev) != protocol_to_pnp_dev(&(protocol)->devices); \
	419	(dev) = protocol_to_pnp_dev((dev)->protocol_list.next))
	420
cbcdc1de DB	421	extern struct bus_type pnp_bus_type;
cbcdc1de DB	422
1da177e4 LT	423	#if defined(CONFIG_PNP)
	424
	425	/* device management */
1da177e4 LT	426	int pnp_device_attach(struct pnp_dev *pnp_dev);
	427	void pnp_device_detach(struct pnp_dev *pnp_dev);
	428	extern struct list_head pnp_global;
8f81dd14	429	extern int pnp_platform_devices;
1da177e4 LT	430
1da177e4 LT	431	/* multidevice card support */
9dd78466 BH	432	struct pnp_dev pnp_request_card_device(struct pnp_card_link clink,
	433	const char id, struct pnp_dev from);
	434	void pnp_release_card_device(struct pnp_dev *dev);
	435	int pnp_register_card_driver(struct pnp_card_driver *drv);
	436	void pnp_unregister_card_driver(struct pnp_card_driver *drv);
1da177e4 LT	437	extern struct list_head pnp_cards;
	438
	439	/* resource management */
57fd51a8 BH	440	int pnp_possible_config(struct pnp_dev *dev, int type, resource_size_t base,
57fd51a8 BH	441	resource_size_t size);
1da177e4	442	int pnp_auto_config_dev(struct pnp_dev *dev);
68094e32 PO	443	int pnp_start_dev(struct pnp_dev *dev);
68094e32 PO	444	int pnp_stop_dev(struct pnp_dev *dev);
1da177e4 LT	445	int pnp_activate_dev(struct pnp_dev *dev);
1da177e4 LT	446	int pnp_disable_dev(struct pnp_dev *dev);
1da177e4 LT	447
1da177e4 LT	448	/* protocol helpers */
9dd78466 BH	449	int pnp_is_active(struct pnp_dev *dev);
9dd78466 BH	450	int compare_pnp_id(struct pnp_id pos, const char id);
1da177e4 LT	451	int pnp_register_driver(struct pnp_driver *drv);
	452	void pnp_unregister_driver(struct pnp_driver *drv);
	453
	454	#else
	455
	456	/* device management */
07d4e9af BH	457	static inline int pnp_device_attach(struct pnp_dev *pnp_dev) { return -ENODEV; }
07d4e9af BH	458	static inline void pnp_device_detach(struct pnp_dev *pnp_dev) { }
9dd78466	459
8f81dd14	460	#define pnp_platform_devices 0
1da177e4 LT	461
1da177e4 LT	462	/* multidevice card support */
07d4e9af BH	463	static inline struct pnp_dev pnp_request_card_device(struct pnp_card_link clink, const char id, struct pnp_dev from) { return NULL; }
	464	static inline void pnp_release_card_device(struct pnp_dev *dev) { }
	465	static inline int pnp_register_card_driver(struct pnp_card_driver *drv) { return -ENODEV; }
	466	static inline void pnp_unregister_card_driver(struct pnp_card_driver *drv) { }
1da177e4 LT	467
1da177e4 LT	468	/* resource management */
57fd51a8 BH	469	static inline int pnp_possible_config(struct pnp_dev *dev, int type,
	470	resource_size_t base,
	471	resource_size_t size) { return 0; }
07d4e9af	472	static inline int pnp_auto_config_dev(struct pnp_dev *dev) { return -ENODEV; }
07d4e9af BH	473	static inline int pnp_start_dev(struct pnp_dev *dev) { return -ENODEV; }
	474	static inline int pnp_stop_dev(struct pnp_dev *dev) { return -ENODEV; }
	475	static inline int pnp_activate_dev(struct pnp_dev *dev) { return -ENODEV; }
	476	static inline int pnp_disable_dev(struct pnp_dev *dev) { return -ENODEV; }
1da177e4 LT	477
1da177e4 LT	478	/* protocol helpers */
07d4e9af BH	479	static inline int pnp_is_active(struct pnp_dev *dev) { return 0; }
07d4e9af BH	480	static inline int compare_pnp_id(struct pnp_id pos, const char id) { return -ENODEV; }
07d4e9af BH	481	static inline int pnp_register_driver(struct pnp_driver *drv) { return -ENODEV; }
07d4e9af BH	482	static inline void pnp_unregister_driver(struct pnp_driver *drv) { }
1da177e4 LT	483
	484	#endif /* CONFIG_PNP */
	485
1da177e4 LT	486	#define pnp_err(format, arg...) printk(KERN_ERR "pnp: " format "\n" , ## arg)
	487	#define pnp_info(format, arg...) printk(KERN_INFO "pnp: " format "\n" , ## arg)
	488	#define pnp_warn(format, arg...) printk(KERN_WARNING "pnp: " format "\n" , ## arg)
	489
e139aa59	490	#ifdef CONFIG_PNP_DEBUG
1da177e4 LT	491	#define pnp_dbg(format, arg...) printk(KERN_DEBUG "pnp: " format "\n" , ## arg)
	492	#else
	493	#define pnp_dbg(format, arg...) do {} while (0)
	494	#endif
	495
1da177e4	496	#endif /* _LINUX_PNP_H */