[mirror_ubuntu-artful-kernel.git] / include / linux / adb.h

/*
 * Definitions for ADB (Apple Desktop Bus) support.
 */
#ifndef __ADB_H
#define __ADB_H

/* ADB commands */
#define ADB_BUSRESET		0
#define ADB_FLUSH(id)		(0x01 | ((id) << 4))
#define ADB_WRITEREG(id, reg)	(0x08 | (reg) | ((id) << 4))
#define ADB_READREG(id, reg)	(0x0C | (reg) | ((id) << 4))

/* ADB default device IDs (upper 4 bits of ADB command byte) */
#define ADB_DONGLE	1	/* "software execution control" devices */
#define ADB_KEYBOARD	2
#define ADB_MOUSE	3
#define ADB_TABLET	4
#define ADB_MODEM	5
#define ADB_MISC	7	/* maybe a monitor */

#define ADB_RET_OK	0
#define ADB_RET_TIMEOUT	3

/* The kind of ADB request. The controller may emulate some
   or all of those CUDA/PMU packet kinds */
#define ADB_PACKET	0
#define CUDA_PACKET	1
#define ERROR_PACKET	2
#define TIMER_PACKET	3
#define POWER_PACKET	4
#define MACIIC_PACKET	5
#define PMU_PACKET	6
#define ADB_QUERY	7

/* ADB queries */

/* ADB_QUERY_GETDEVINFO
 * Query ADB slot for device presence
 * data[2] = id, rep[0] = orig addr, rep[1] = handler_id
 */
#define ADB_QUERY_GETDEVINFO	1

#ifdef __KERNEL__

struct adb_request {
	unsigned char data[32];
	int nbytes;
	unsigned char reply[32];
	int reply_len;
	unsigned char reply_expected;
	unsigned char sent;
	unsigned char complete;
	void (*done)(struct adb_request *);
	void *arg;
	struct adb_request *next;
};

struct adb_ids {
	int nids;
	unsigned char id[16];
};

/* Structure which encapsulates a low-level ADB driver */

struct adb_driver {
	char name[16];
	int (*probe)(void);
	int (*init)(void);
	int (*send_request)(struct adb_request *req, int sync);
	int (*autopoll)(int devs);
	void (*poll)(void);
	int (*reset_bus)(void);
};

/* Values for adb_request flags */
#define ADBREQ_REPLY	1	/* expect reply */
#define ADBREQ_SYNC	2	/* poll until done */
#define ADBREQ_NOSEND	4	/* build the request, but don't send it */

/* Messages sent thru the client_list notifier. You should NOT stop
   the operation, at least not with this version */
enum adb_message {
    ADB_MSG_POWERDOWN,	/* Currently called before sleep only */
    ADB_MSG_PRE_RESET,	/* Called before resetting the bus */
    ADB_MSG_POST_RESET	/* Called after resetting the bus (re-do init & register) */
};
extern struct blocking_notifier_head adb_client_list;

int adb_request(struct adb_request *req, void (*done)(struct adb_request *),
		int flags, int nbytes, ...);
int adb_register(int default_id,int handler_id,struct adb_ids *ids,
		 void (*handler)(unsigned char *, int, int));
int adb_unregister(int index);
void adb_poll(void);
void adb_input(unsigned char *, int, int);
int adb_reset_bus(void);

int adb_try_handler_change(int address, int new_id);
int adb_get_infos(int address, int *original_address, int *handler_id);

#endif /* __KERNEL__ */

#endif /* __ADB_H */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Definitions for ADB (Apple Desktop Bus) support.
	3	*/
	4	#ifndef __ADB_H
	5	#define __ADB_H
	6
	7	/* ADB commands */
	8	#define ADB_BUSRESET 0
	9	#define ADB_FLUSH(id) (0x01 \| ((id) << 4))
	10	#define ADB_WRITEREG(id, reg) (0x08 \| (reg) \| ((id) << 4))
	11	#define ADB_READREG(id, reg) (0x0C \| (reg) \| ((id) << 4))
	12
	13	/* ADB default device IDs (upper 4 bits of ADB command byte) */
	14	#define ADB_DONGLE 1 /* "software execution control" devices */
	15	#define ADB_KEYBOARD 2
	16	#define ADB_MOUSE 3
	17	#define ADB_TABLET 4
	18	#define ADB_MODEM 5
	19	#define ADB_MISC 7 /* maybe a monitor */
	20
	21	#define ADB_RET_OK 0
	22	#define ADB_RET_TIMEOUT 3
	23
	24	/* The kind of ADB request. The controller may emulate some
	25	or all of those CUDA/PMU packet kinds */
	26	#define ADB_PACKET 0
	27	#define CUDA_PACKET 1
	28	#define ERROR_PACKET 2
	29	#define TIMER_PACKET 3
	30	#define POWER_PACKET 4
	31	#define MACIIC_PACKET 5
	32	#define PMU_PACKET 6
	33	#define ADB_QUERY 7
	34
	35	/* ADB queries */
	36
	37	/* ADB_QUERY_GETDEVINFO
	38	* Query ADB slot for device presence
	39	* data[2] = id, rep[0] = orig addr, rep[1] = handler_id
	40	*/
	41	#define ADB_QUERY_GETDEVINFO 1
	42
	43	#ifdef __KERNEL__
	44
	45	struct adb_request {
	46	unsigned char data[32];
	47	int nbytes;
	48	unsigned char reply[32];
	49	int reply_len;
	50	unsigned char reply_expected;
	51	unsigned char sent;
	52	unsigned char complete;
	53	void (done)(struct adb_request );
	54	void *arg;
	55	struct adb_request *next;
	56	};
	57
	58	struct adb_ids {
	59	int nids;
	60	unsigned char id[16];
	61	};
	62
	63	/* Structure which encapsulates a low-level ADB driver */
	64
65	struct adb_driver {
66	char name[16];
67	int (*probe)(void);
68	int (*init)(void);
69	int (send_request)(struct adb_request req, int sync);
70	int (*autopoll)(int devs);
71	void (*poll)(void);
72	int (*reset_bus)(void);
73	};
74
75	/* Values for adb_request flags */
76	#define ADBREQ_REPLY 1 /* expect reply */
77	#define ADBREQ_SYNC 2 /* poll until done */
78	#define ADBREQ_NOSEND 4 /* build the request, but don't send it */
79
80	/* Messages sent thru the client_list notifier. You should NOT stop
81	the operation, at least not with this version */
82	enum adb_message {
83	ADB_MSG_POWERDOWN, /* Currently called before sleep only */
84	ADB_MSG_PRE_RESET, /* Called before resetting the bus */
85	ADB_MSG_POST_RESET /* Called after resetting the bus (re-do init & register) */
86	};
e041c683	87	extern struct blocking_notifier_head adb_client_list;
1da177e4 LT	88
	89	int adb_request(struct adb_request req, void (done)(struct adb_request *),
	90	int flags, int nbytes, ...);
	91	int adb_register(int default_id,int handler_id,struct adb_ids *ids,
7d12e780	92	void (handler)(unsigned char , int, int));
1da177e4 LT	93	int adb_unregister(int index);
1da177e4 LT	94	void adb_poll(void);
7d12e780	95	void adb_input(unsigned char *, int, int);
1da177e4 LT	96	int adb_reset_bus(void);
	97
	98	int adb_try_handler_change(int address, int new_id);
	99	int adb_get_infos(int address, int original_address, int handler_id);
	100
	101	#endif /* __KERNEL__ */
	102
	103	#endif /* __ADB_H */