[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 *dev, unsigned long type,
				unsigned int num);
#else
static inline struct resource *pnp_get_resource(struct pnp_dev *dev,
			unsigned long 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 resource_size(res);
}


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

#ifdef CONFIG_PNPACPI
extern struct pnp_protocol pnpacpi_protocol;

static inline struct acpi_device *pnp_acpi_device(struct pnp_dev *dev)
{
	if (dev->protocol == &pnpacpi_protocol)
		return dev->data;
	return NULL;
}
#else
#define pnp_acpi_device(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);
	void (*shutdown) (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 */
	bool (*can_wakeup) (struct pnp_dev *dev);
	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);
int pnp_range_reserved(resource_size_t start, resource_size_t end);

/* 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; }
static inline int pnp_range_reserved(resource_size_t start, resource_size_t end) { return 0;}

/* 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 */

#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
b563cf59 RH	25	struct resource pnp_get_resource(struct pnp_dev dev, unsigned long type,
b563cf59 RH	26	unsigned int num);
ef3d7714	27	#else
b563cf59 RH	28	static inline struct resource pnp_get_resource(struct pnp_dev dev,
b563cf59 RH	29	unsigned long type, unsigned int num)
ef3d7714 DM	30	{
	31	return NULL;
	32	}
	33	#endif
1da177e4	34
13575e81 BH	35	static inline int pnp_resource_valid(struct resource *res)
13575e81 BH	36	{
aee3ad81 BH	37	if (res)
	38	return 1;
	39	return 0;
	40	}
	41
	42	static inline int pnp_resource_enabled(struct resource *res)
	43	{
	44	if (res && !(res->flags & IORESOURCE_DISABLED))
13575e81 BH	45	return 1;
	46	return 0;
	47	}
	48
	49	static inline resource_size_t pnp_resource_len(struct resource *res)
	50	{
	51	if (res->start == 0 && res->end == 0)
	52	return 0;
28f65c11	53	return resource_size(res);
13575e81 BH	54	}
	55
	56
	57	static inline resource_size_t pnp_port_start(struct pnp_dev *dev,
	58	unsigned int bar)
	59	{
20bfdbba BH	60	struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar);
	61
	62	if (pnp_resource_valid(res))
	63	return res->start;
	64	return 0;
13575e81 BH	65	}
	66
	67	static inline resource_size_t pnp_port_end(struct pnp_dev *dev,
	68	unsigned int bar)
	69	{
20bfdbba BH	70	struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar);
	71
	72	if (pnp_resource_valid(res))
	73	return res->end;
	74	return 0;
13575e81 BH	75	}
	76
	77	static inline unsigned long pnp_port_flags(struct pnp_dev *dev,
	78	unsigned int bar)
	79	{
20bfdbba BH	80	struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar);
	81
	82	if (pnp_resource_valid(res))
	83	return res->flags;
aee3ad81	84	return IORESOURCE_IO \| IORESOURCE_AUTO;
13575e81 BH	85	}
	86
	87	static inline int pnp_port_valid(struct pnp_dev *dev, unsigned int bar)
	88	{
	89	return pnp_resource_valid(pnp_get_resource(dev, IORESOURCE_IO, bar));
	90	}
	91
	92	static inline resource_size_t pnp_port_len(struct pnp_dev *dev,
	93	unsigned int bar)
	94	{
20bfdbba BH	95	struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar);
	96
	97	if (pnp_resource_valid(res))
	98	return pnp_resource_len(res);
	99	return 0;
13575e81 BH	100	}
	101
	102
	103	static inline resource_size_t pnp_mem_start(struct pnp_dev *dev,
	104	unsigned int bar)
	105	{
20bfdbba BH	106	struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar);
	107
	108	if (pnp_resource_valid(res))
	109	return res->start;
	110	return 0;
13575e81 BH	111	}
	112
	113	static inline resource_size_t pnp_mem_end(struct pnp_dev *dev,
	114	unsigned int bar)
	115	{
20bfdbba BH	116	struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar);
	117
	118	if (pnp_resource_valid(res))
	119	return res->end;
	120	return 0;
13575e81 BH	121	}
	122
	123	static inline unsigned long pnp_mem_flags(struct pnp_dev *dev, unsigned int bar)
	124	{
20bfdbba BH	125	struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar);
	126
	127	if (pnp_resource_valid(res))
	128	return res->flags;
aee3ad81	129	return IORESOURCE_MEM \| IORESOURCE_AUTO;
13575e81 BH	130	}
	131
	132	static inline int pnp_mem_valid(struct pnp_dev *dev, unsigned int bar)
	133	{
	134	return pnp_resource_valid(pnp_get_resource(dev, IORESOURCE_MEM, bar));
	135	}
	136
	137	static inline resource_size_t pnp_mem_len(struct pnp_dev *dev,
	138	unsigned int bar)
	139	{
20bfdbba BH	140	struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar);
	141
	142	if (pnp_resource_valid(res))
	143	return pnp_resource_len(res);
	144	return 0;
13575e81 BH	145	}
	146
	147
	148	static inline resource_size_t pnp_irq(struct pnp_dev *dev, unsigned int bar)
	149	{
20bfdbba BH	150	struct resource *res = pnp_get_resource(dev, IORESOURCE_IRQ, bar);
	151
	152	if (pnp_resource_valid(res))
	153	return res->start;
	154	return -1;
13575e81 BH	155	}
	156
	157	static inline unsigned long pnp_irq_flags(struct pnp_dev *dev, unsigned int bar)
	158	{
20bfdbba BH	159	struct resource *res = pnp_get_resource(dev, IORESOURCE_IRQ, bar);
	160
	161	if (pnp_resource_valid(res))
	162	return res->flags;
aee3ad81	163	return IORESOURCE_IRQ \| IORESOURCE_AUTO;
13575e81 BH	164	}
	165
	166	static inline int pnp_irq_valid(struct pnp_dev *dev, unsigned int bar)
	167	{
	168	return pnp_resource_valid(pnp_get_resource(dev, IORESOURCE_IRQ, bar));
	169	}
	170
	171
	172	static inline resource_size_t pnp_dma(struct pnp_dev *dev, unsigned int bar)
	173	{
20bfdbba BH	174	struct resource *res = pnp_get_resource(dev, IORESOURCE_DMA, bar);
	175
	176	if (pnp_resource_valid(res))
	177	return res->start;
	178	return -1;
13575e81 BH	179	}
	180
	181	static inline unsigned long pnp_dma_flags(struct pnp_dev *dev, unsigned int bar)
	182	{
20bfdbba BH	183	struct resource *res = pnp_get_resource(dev, IORESOURCE_DMA, bar);
	184
	185	if (pnp_resource_valid(res))
	186	return res->flags;
aee3ad81	187	return IORESOURCE_DMA \| IORESOURCE_AUTO;
13575e81 BH	188	}
	189
	190	static inline int pnp_dma_valid(struct pnp_dev *dev, unsigned int bar)
	191	{
	192	return pnp_resource_valid(pnp_get_resource(dev, IORESOURCE_DMA, bar));
	193	}
1da177e4	194
1da177e4	195
1da177e4	196	/*
fd3f8984	197	* Device Management
1da177e4 LT	198	*/
	199
	200	struct pnp_card {
07d4e9af BH	201	struct device dev; /* Driver Model device interface */
07d4e9af BH	202	unsigned char number; /* used as an index, must be unique */
1da177e4 LT	203	struct list_head global_list; /* node in global list of cards */
	204	struct list_head protocol_list; /* node in protocol's list of cards */
	205	struct list_head devices; /* devices attached to the card */
	206
9dd78466	207	struct pnp_protocol *protocol;
07d4e9af	208	struct pnp_id id; / contains supported EISA IDs */
1da177e4 LT	209
1da177e4 LT	210	char name[PNP_NAME_LEN]; /* contains a human-readable name */
07d4e9af	211	unsigned char pnpver; /* Plug & Play version */
9dd78466	212	unsigned char productver; /* product version */
07d4e9af BH	213	unsigned int serial; /* serial number */
07d4e9af BH	214	unsigned char checksum; /* if zero - checksum passed */
1da177e4 LT	215	struct proc_dir_entry procdir; / directory entry in /proc/bus/isapnp */
	216	};
	217
	218	#define global_to_pnp_card(n) list_entry(n, struct pnp_card, global_list)
	219	#define protocol_to_pnp_card(n) list_entry(n, struct pnp_card, protocol_list)
	220	#define to_pnp_card(n) container_of(n, struct pnp_card, dev)
	221	#define pnp_for_each_card(card) \
	222	for((card) = global_to_pnp_card(pnp_cards.next); \
	223	(card) != global_to_pnp_card(&pnp_cards); \
	224	(card) = global_to_pnp_card((card)->global_list.next))
	225
	226	struct pnp_card_link {
9dd78466 BH	227	struct pnp_card *card;
	228	struct pnp_card_driver *driver;
	229	void *driver_data;
4c98cfef	230	pm_message_t pm_state;
1da177e4 LT	231	};
1da177e4 LT	232
9dd78466	233	static inline void pnp_get_card_drvdata(struct pnp_card_link pcard)
1da177e4 LT	234	{
	235	return pcard->driver_data;
	236	}
	237
9dd78466	238	static inline void pnp_set_card_drvdata(struct pnp_card_link pcard, void data)
1da177e4 LT	239	{
	240	pcard->driver_data = data;
	241	}
	242
	243	struct pnp_dev {
07d4e9af	244	struct device dev; /* Driver Model device interface */
2e17c550	245	u64 dma_mask;
544451a1	246	unsigned int number; /* used as an index, must be unique */
1da177e4 LT	247	int status;
	248
	249	struct list_head global_list; /* node in global list of devices */
	250	struct list_head protocol_list; /* node in list of device's protocol */
	251	struct list_head card_list; /* node in card's list of devices */
	252	struct list_head rdev_list; /* node in cards list of requested devices */
	253
9dd78466 BH	254	struct pnp_protocol *protocol;
	255	struct pnp_card card; / card the device is attached to, none if NULL */
	256	struct pnp_driver *driver;
	257	struct pnp_card_link *card_link;
1da177e4	258
07d4e9af	259	struct pnp_id id; / supported EISA IDs */
1da177e4 LT	260
	261	int active;
	262	int capabilities;
1f32ca31	263	unsigned int num_dependent_sets;
aee3ad81	264	struct list_head resources;
1f32ca31	265	struct list_head options;
1da177e4 LT	266
1da177e4 LT	267	char name[PNP_NAME_LEN]; /* contains a human-readable name */
07d4e9af	268	int flags; /* used by protocols */
1da177e4 LT	269	struct proc_dir_entry procent; / device entry in /proc/bus/isapnp */
	270	void *data;
	271	};
	272
	273	#define global_to_pnp_dev(n) list_entry(n, struct pnp_dev, global_list)
	274	#define card_to_pnp_dev(n) list_entry(n, struct pnp_dev, card_list)
	275	#define protocol_to_pnp_dev(n) list_entry(n, struct pnp_dev, protocol_list)
	276	#define to_pnp_dev(n) container_of(n, struct pnp_dev, dev)
	277	#define pnp_for_each_dev(dev) \
	278	for((dev) = global_to_pnp_dev(pnp_global.next); \
	279	(dev) != global_to_pnp_dev(&pnp_global); \
	280	(dev) = global_to_pnp_dev((dev)->global_list.next))
	281	#define card_for_each_dev(card,dev) \
	282	for((dev) = card_to_pnp_dev((card)->devices.next); \
	283	(dev) != card_to_pnp_dev(&(card)->devices); \
	284	(dev) = card_to_pnp_dev((dev)->card_list.next))
	285	#define pnp_dev_name(dev) (dev)->name
	286
9dd78466	287	static inline void pnp_get_drvdata(struct pnp_dev pdev)
1da177e4 LT	288	{
	289	return dev_get_drvdata(&pdev->dev);
	290	}
	291
9dd78466	292	static inline void pnp_set_drvdata(struct pnp_dev pdev, void data)
1da177e4 LT	293	{
	294	dev_set_drvdata(&pdev->dev, data);
	295	}
	296
	297	struct pnp_fixup {
	298	char id[7];
9dd78466	299	void (quirk_function) (struct pnp_dev dev); /* fixup function */
1da177e4 LT	300	};
	301
	302	/* config parameters */
	303	#define PNP_CONFIG_NORMAL 0x0001
	304	#define PNP_CONFIG_FORCE 0x0002 /* disables validity checking */
	305
	306	/* capabilities */
	307	#define PNP_READ 0x0001
	308	#define PNP_WRITE 0x0002
	309	#define PNP_DISABLE 0x0004
	310	#define PNP_CONFIGURABLE 0x0008
	311	#define PNP_REMOVABLE 0x0010
	312
402b310c	313	#define pnp_can_read(dev) (((dev)->protocol->get) && \
1da177e4	314	((dev)->capabilities & PNP_READ))
402b310c	315	#define pnp_can_write(dev) (((dev)->protocol->set) && \
1da177e4	316	((dev)->capabilities & PNP_WRITE))
402b310c	317	#define pnp_can_disable(dev) (((dev)->protocol->disable) && \
1da177e4 LT	318	((dev)->capabilities & PNP_DISABLE))
	319	#define pnp_can_configure(dev) ((!(dev)->active) && \
	320	((dev)->capabilities & PNP_CONFIGURABLE))
	321
	322	#ifdef CONFIG_ISAPNP
	323	extern struct pnp_protocol isapnp_protocol;
	324	#define pnp_device_is_isapnp(dev) ((dev)->protocol == (&isapnp_protocol))
	325	#else
	326	#define pnp_device_is_isapnp(dev) 0
	327	#endif
b3bd86e2	328	extern struct mutex pnp_res_mutex;
1da177e4 LT	329
	330	#ifdef CONFIG_PNPBIOS
	331	extern struct pnp_protocol pnpbios_protocol;
	332	#define pnp_device_is_pnpbios(dev) ((dev)->protocol == (&pnpbios_protocol))
	333	#else
	334	#define pnp_device_is_pnpbios(dev) 0
	335	#endif
	336
9065ce45 BH	337	#ifdef CONFIG_PNPACPI
	338	extern struct pnp_protocol pnpacpi_protocol;
	339
	340	static inline struct acpi_device pnp_acpi_device(struct pnp_dev dev)
	341	{
	342	if (dev->protocol == &pnpacpi_protocol)
	343	return dev->data;
	344	return NULL;
	345	}
	346	#else
	347	#define pnp_acpi_device(dev) 0
	348	#endif
	349
1da177e4 LT	350	/* status */
	351	#define PNP_READY 0x0000
	352	#define PNP_ATTACHED 0x0001
	353	#define PNP_BUSY 0x0002
	354	#define PNP_FAULTY 0x0004
	355
	356	/* isapnp specific macros */
	357
	358	#define isapnp_card_number(dev) ((dev)->card ? (dev)->card->number : -1)
	359	#define isapnp_csn_number(dev) ((dev)->number)
	360
	361	/*
	362	* Driver Management
	363	*/
	364
	365	struct pnp_id {
	366	char id[PNP_ID_LEN];
9dd78466	367	struct pnp_id *next;
1da177e4 LT	368	};
	369
	370	struct pnp_driver {
9dd78466	371	char *name;
1da177e4 LT	372	const struct pnp_device_id *id_table;
1da177e4 LT	373	unsigned int flags;
07d4e9af BH	374	int (probe) (struct pnp_dev dev, const struct pnp_device_id *dev_id);
07d4e9af BH	375	void (remove) (struct pnp_dev dev);
abd6633c	376	void (shutdown) (struct pnp_dev dev);
07d4e9af BH	377	int (suspend) (struct pnp_dev dev, pm_message_t state);
07d4e9af BH	378	int (resume) (struct pnp_dev dev);
1da177e4 LT	379	struct device_driver driver;
	380	};
	381
	382	#define to_pnp_driver(drv) container_of(drv, struct pnp_driver, driver)
	383
	384	struct pnp_card_driver {
	385	struct list_head global_list;
9dd78466	386	char *name;
1da177e4 LT	387	const struct pnp_card_device_id *id_table;
1da177e4 LT	388	unsigned int flags;
07d4e9af BH	389	int (probe) (struct pnp_card_link card,
	390	const struct pnp_card_device_id *card_id);
	391	void (remove) (struct pnp_card_link card);
	392	int (suspend) (struct pnp_card_link card, pm_message_t state);
	393	int (resume) (struct pnp_card_link card);
1da177e4 LT	394	struct pnp_driver link;
	395	};
	396
	397	#define to_pnp_card_driver(drv) container_of(drv, struct pnp_card_driver, link)
	398
	399	/* pnp driver flags */
	400	#define PNP_DRIVER_RES_DO_NOT_CHANGE 0x0001 /* do not change the state of the device */
	401	#define PNP_DRIVER_RES_DISABLE 0x0003 /* ensure the device is disabled */
	402
1da177e4 LT	403	/*
	404	* Protocol Management
	405	*/
	406
	407	struct pnp_protocol {
9dd78466 BH	408	struct list_head protocol_list;
9dd78466 BH	409	char *name;
1da177e4 LT	410
1da177e4 LT	411	/* resource control functions */
59284cb4 BH	412	int (get) (struct pnp_dev dev);
59284cb4 BH	413	int (set) (struct pnp_dev dev);
07d4e9af	414	int (disable) (struct pnp_dev dev);
1da177e4	415
fc30e68e	416	/* protocol specific suspend/resume */
b14e033e	417	bool (can_wakeup) (struct pnp_dev dev);
9dd78466 BH	418	int (suspend) (struct pnp_dev dev, pm_message_t state);
9dd78466 BH	419	int (resume) (struct pnp_dev dev);
fc30e68e	420
1da177e4	421	/* used by pnp layer only (look but don't touch) */
9dd78466 BH	422	unsigned char number; /* protocol number */
	423	struct device dev; /* link to driver model */
	424	struct list_head cards;
	425	struct list_head devices;
1da177e4 LT	426	};
	427
	428	#define to_pnp_protocol(n) list_entry(n, struct pnp_protocol, protocol_list)
	429	#define protocol_for_each_card(protocol,card) \
	430	for((card) = protocol_to_pnp_card((protocol)->cards.next); \
	431	(card) != protocol_to_pnp_card(&(protocol)->cards); \
	432	(card) = protocol_to_pnp_card((card)->protocol_list.next))
	433	#define protocol_for_each_dev(protocol,dev) \
	434	for((dev) = protocol_to_pnp_dev((protocol)->devices.next); \
	435	(dev) != protocol_to_pnp_dev(&(protocol)->devices); \
	436	(dev) = protocol_to_pnp_dev((dev)->protocol_list.next))
	437
cbcdc1de DB	438	extern struct bus_type pnp_bus_type;
cbcdc1de DB	439
1da177e4 LT	440	#if defined(CONFIG_PNP)
	441
	442	/* device management */
1da177e4 LT	443	int pnp_device_attach(struct pnp_dev *pnp_dev);
	444	void pnp_device_detach(struct pnp_dev *pnp_dev);
	445	extern struct list_head pnp_global;
8f81dd14	446	extern int pnp_platform_devices;
1da177e4 LT	447
1da177e4 LT	448	/* multidevice card support */
9dd78466 BH	449	struct pnp_dev pnp_request_card_device(struct pnp_card_link clink,
	450	const char id, struct pnp_dev from);
	451	void pnp_release_card_device(struct pnp_dev *dev);
	452	int pnp_register_card_driver(struct pnp_card_driver *drv);
	453	void pnp_unregister_card_driver(struct pnp_card_driver *drv);
1da177e4 LT	454	extern struct list_head pnp_cards;
	455
	456	/* resource management */
57fd51a8 BH	457	int pnp_possible_config(struct pnp_dev *dev, int type, resource_size_t base,
57fd51a8 BH	458	resource_size_t size);
1da177e4	459	int pnp_auto_config_dev(struct pnp_dev *dev);
68094e32 PO	460	int pnp_start_dev(struct pnp_dev *dev);
68094e32 PO	461	int pnp_stop_dev(struct pnp_dev *dev);
1da177e4 LT	462	int pnp_activate_dev(struct pnp_dev *dev);
1da177e4 LT	463	int pnp_disable_dev(struct pnp_dev *dev);
1b8e6966	464	int pnp_range_reserved(resource_size_t start, resource_size_t end);
1da177e4 LT	465
1da177e4 LT	466	/* protocol helpers */
9dd78466 BH	467	int pnp_is_active(struct pnp_dev *dev);
9dd78466 BH	468	int compare_pnp_id(struct pnp_id pos, const char id);
1da177e4 LT	469	int pnp_register_driver(struct pnp_driver *drv);
	470	void pnp_unregister_driver(struct pnp_driver *drv);
	471
	472	#else
	473
	474	/* device management */
07d4e9af BH	475	static inline int pnp_device_attach(struct pnp_dev *pnp_dev) { return -ENODEV; }
07d4e9af BH	476	static inline void pnp_device_detach(struct pnp_dev *pnp_dev) { }
9dd78466	477
8f81dd14	478	#define pnp_platform_devices 0
1da177e4 LT	479
1da177e4 LT	480	/* multidevice card support */
07d4e9af BH	481	static inline struct pnp_dev pnp_request_card_device(struct pnp_card_link clink, const char id, struct pnp_dev from) { return NULL; }
	482	static inline void pnp_release_card_device(struct pnp_dev *dev) { }
	483	static inline int pnp_register_card_driver(struct pnp_card_driver *drv) { return -ENODEV; }
	484	static inline void pnp_unregister_card_driver(struct pnp_card_driver *drv) { }
1da177e4 LT	485
1da177e4 LT	486	/* resource management */
57fd51a8 BH	487	static inline int pnp_possible_config(struct pnp_dev *dev, int type,
	488	resource_size_t base,
	489	resource_size_t size) { return 0; }
07d4e9af	490	static inline int pnp_auto_config_dev(struct pnp_dev *dev) { return -ENODEV; }
07d4e9af BH	491	static inline int pnp_start_dev(struct pnp_dev *dev) { return -ENODEV; }
	492	static inline int pnp_stop_dev(struct pnp_dev *dev) { return -ENODEV; }
	493	static inline int pnp_activate_dev(struct pnp_dev *dev) { return -ENODEV; }
	494	static inline int pnp_disable_dev(struct pnp_dev *dev) { return -ENODEV; }
1b8e6966	495	static inline int pnp_range_reserved(resource_size_t start, resource_size_t end) { return 0;}
1da177e4 LT	496
1da177e4 LT	497	/* protocol helpers */
07d4e9af BH	498	static inline int pnp_is_active(struct pnp_dev *dev) { return 0; }
07d4e9af BH	499	static inline int compare_pnp_id(struct pnp_id pos, const char id) { return -ENODEV; }
07d4e9af BH	500	static inline int pnp_register_driver(struct pnp_driver *drv) { return -ENODEV; }
07d4e9af BH	501	static inline void pnp_unregister_driver(struct pnp_driver *drv) { }
1da177e4 LT	502
	503	#endif /* CONFIG_PNP */
	504
1da177e4	505	#endif /* _LINUX_PNP_H */