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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);
#endif /* __KERNEL__ */
#endif /* __PPC_ADB_H */
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