hw/adb.h

   1 /*
   2  * QEMU ADB emulation shared definitions and prototypes
   3  *
   4  * Copyright (c) 2004-2007 Fabrice Bellard
   5  * Copyright (c) 2007 Jocelyn Mayer
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a copy
   8  * of this software and associated documentation files (the "Software"), to deal
   9  * in the Software without restriction, including without limitation the rights
  10  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  11  * copies of the Software, and to permit persons to whom the Software is
  12  * furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included in
  15  * all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  23  * THE SOFTWARE.
  24  */
  25
  26 #if !defined(__ADB_H__)
  27 #define __ADB_H__
  28
  29 #define MAX_ADB_DEVICES 16
  30
  31 #define ADB_MAX_OUT_LEN 16
  32
  33 typedef struct ADBDevice ADBDevice;
  34
  35 /* buf = NULL means polling */
  36 typedef int ADBDeviceRequest(ADBDevice *d, uint8_t *buf_out,
  37                               const uint8_t *buf, int len);
  38 typedef int ADBDeviceReset(ADBDevice *d);
  39
  40 struct ADBDevice {
  41     struct ADBBusState *bus;
  42     int devaddr;
  43     int handler;
  44     ADBDeviceRequest *devreq;
  45     ADBDeviceReset *devreset;
  46     void *opaque;
  47 };
  48
  49 typedef struct ADBBusState {
  50     ADBDevice devices[MAX_ADB_DEVICES];
  51     int nb_devices;
  52     int poll_index;
  53 } ADBBusState;
  54
  55 int adb_request(ADBBusState *s, uint8_t *buf_out,
  56                 const uint8_t *buf, int len);
  57 int adb_poll(ADBBusState *s, uint8_t *buf_out);
  58
  59 ADBDevice *adb_register_device(ADBBusState *s, int devaddr,
  60                                ADBDeviceRequest *devreq,
  61                                ADBDeviceReset *devreset,
  62                                void *opaque);
  63 void adb_kbd_init(ADBBusState *bus);
  64 void adb_mouse_init(ADBBusState *bus);
  65
  66 extern ADBBusState adb_bus;
  67 #endif /* !defined(__ADB_H__) */