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- /*
- * Definitions for ADB (Apple Desktop Bus) support.
- */
- #ifndef __PPC_ADB_H
- #define __PPC_ADB_H
-
- /* ADB commands */
- #define ADB_BUSRESET 0
- #define ADB_FLUSH(id) (1 + ((id) << 4))
- #define ADB_WRITEREG(id, reg) (8 + (reg) + ((id) << 4))
- #define ADB_READREG(id, reg) (0xc + (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
-
- #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];
- };
-
- extern enum adb_hw {
- ADB_NONE, ADB_VIACUDA, ADB_VIAPMU, ADB_MACIO
- } adb_hardware;
-
- extern int (*adb_send_request)(struct adb_request *req, int sync);
- extern int (*adb_autopoll)(int devs);
- extern int (*adb_reset_bus)(void);
-
- /* Values for adb_request flags */
- #define ADBREQ_REPLY 1 /* expect reply */
- #define ADBREQ_SYNC 2 /* poll until done */
-
- void adb_init(void);
- 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));
- void adb_input(unsigned char *, int, struct pt_regs *, int);
-
- 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 /* __PPC_ADB_H */
-