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 11 struct 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 24 struct adb_ids { 25 int nids; 26 unsigned char id[16]; 27 }; 28 29 /* Structure which encapsulates a low-level ADB driver */ 30 31 struct 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 */ 48 enum 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 }; 53 extern struct blocking_notifier_head adb_client_list; 54 55 int adb_request(struct adb_request *req, void (*done)(struct adb_request *), 56 int flags, int nbytes, ...); 57 int adb_register(int default_id,int handler_id,struct adb_ids *ids, 58 void (*handler)(unsigned char *, int, int)); 59 int adb_unregister(int index); 60 void adb_poll(void); 61 void adb_input(unsigned char *, int, int); 62 int adb_reset_bus(void); 63 64 int adb_try_handler_change(int address, int new_id); 65 int adb_get_infos(int address, int *original_address, int *handler_id); 66 67 #endif /* __ADB_H */ 68