include/linux/adb.h

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