include/hw/input/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 #ifndef ADB_H
  27 #define ADB_H
  28
  29 #include "hw/qdev.h"
  30
  31 #define MAX_ADB_DEVICES 16
  32
  33 #define ADB_MAX_OUT_LEN 16
  34
  35 typedef struct ADBBusState ADBBusState;
  36 typedef struct ADBDevice ADBDevice;
  37
  38 /* buf = NULL means polling */
  39 typedef int ADBDeviceRequest(ADBDevice *d, uint8_t *buf_out,
  40                               const uint8_t *buf, int len);
  41
  42 #define TYPE_ADB_DEVICE "adb-device"
  43 #define ADB_DEVICE(obj) OBJECT_CHECK(ADBDevice, (obj), TYPE_ADB_DEVICE)
  44
  45 struct ADBDevice {
  46     /*< private >*/
  47     DeviceState parent_obj;
  48     /*< public >*/
  49
  50     int devaddr;
  51     int handler;
  52     bool disable_direct_reg3_writes;
  53 };
  54
  55 #define ADB_DEVICE_CLASS(cls) \
  56     OBJECT_CLASS_CHECK(ADBDeviceClass, (cls), TYPE_ADB_DEVICE)
  57 #define ADB_DEVICE_GET_CLASS(obj) \
  58     OBJECT_GET_CLASS(ADBDeviceClass, (obj), TYPE_ADB_DEVICE)
  59
  60 typedef struct ADBDeviceClass {
  61     /*< private >*/
  62     DeviceClass parent_class;
  63     /*< public >*/
  64
  65     ADBDeviceRequest *devreq;
  66 } ADBDeviceClass;
  67
  68 #define TYPE_ADB_BUS "apple-desktop-bus"
  69 #define ADB_BUS(obj) OBJECT_CHECK(ADBBusState, (obj), TYPE_ADB_BUS)
  70
  71 struct ADBBusState {
  72     /*< private >*/
  73     BusState parent_obj;
  74     /*< public >*/
  75
  76     ADBDevice *devices[MAX_ADB_DEVICES];
  77     int nb_devices;
  78     int poll_index;
  79 };
  80
  81 int adb_request(ADBBusState *s, uint8_t *buf_out,
  82                 const uint8_t *buf, int len);
  83 int adb_poll(ADBBusState *s, uint8_t *buf_out, uint16_t poll_mask);
  84
  85 #define TYPE_ADB_KEYBOARD "adb-keyboard"
  86 #define TYPE_ADB_MOUSE "adb-mouse"
  87
  88 #endif /* ADB_H */