adb.h (1832B)
1/* SPDX-License-Identifier: GPL-2.0 */ 2/* 3 * Definitions for ADB (Apple Desktop Bus) support. 4 */ 5#ifndef __ADB_H 6#define __ADB_H 7 8#include <uapi/linux/adb.h> 9 10 11struct adb_request { 12 unsigned char data[32]; 13 int nbytes; 14 unsigned char reply[32]; 15 int reply_len; 16 unsigned char reply_expected; 17 unsigned char sent; 18 unsigned char complete; 19 void (*done)(struct adb_request *); 20 void *arg; 21 struct adb_request *next; 22}; 23 24struct adb_ids { 25 int nids; 26 unsigned char id[16]; 27}; 28 29/* Structure which encapsulates a low-level ADB driver */ 30 31struct adb_driver { 32 char name[16]; 33 int (*probe)(void); 34 int (*init)(void); 35 int (*send_request)(struct adb_request *req, int sync); 36 int (*autopoll)(int devs); 37 void (*poll)(void); 38 int (*reset_bus)(void); 39}; 40 41/* Values for adb_request flags */ 42#define ADBREQ_REPLY 1 /* expect reply */ 43#define ADBREQ_SYNC 2 /* poll until done */ 44#define ADBREQ_NOSEND 4 /* build the request, but don't send it */ 45 46/* Messages sent thru the client_list notifier. You should NOT stop 47 the operation, at least not with this version */ 48enum adb_message { 49 ADB_MSG_POWERDOWN, /* Currently called before sleep only */ 50 ADB_MSG_PRE_RESET, /* Called before resetting the bus */ 51 ADB_MSG_POST_RESET /* Called after resetting the bus (re-do init & register) */ 52}; 53extern struct blocking_notifier_head adb_client_list; 54 55int adb_request(struct adb_request *req, void (*done)(struct adb_request *), 56 int flags, int nbytes, ...); 57int adb_register(int default_id,int handler_id,struct adb_ids *ids, 58 void (*handler)(unsigned char *, int, int)); 59int adb_unregister(int index); 60void adb_poll(void); 61void adb_input(unsigned char *, int, int); 62int adb_reset_bus(void); 63 64int adb_try_handler_change(int address, int new_id); 65int adb_get_infos(int address, int *original_address, int *handler_id); 66 67#endif /* __ADB_H */