adb.h
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:3k
- /*
- * 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
- #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 adb_driver *adb_controller;
- extern struct notifier_block *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, struct pt_regs *, int));
- int adb_unregister(int index);
- void adb_poll(void);
- void adb_input(unsigned char *, int, struct pt_regs *, 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 */