LXR qemu/include/hw/input/ps2.h

   1/*
   2 * QEMU PS/2 keyboard/mouse emulation
   3 *
   4 * Copyright (C) 2003 Fabrice Bellard
   5 *
   6 * Permission is hereby granted, free of charge, to any person obtaining a copy
   7 * of this software and associated documentation files (the "Software"), to deal
   8 * in the Software without restriction, including without limitation the rights
   9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10 * copies of the Software, and to permit persons to whom the Software is
  11 * furnished to do so, subject to the following conditions:
  12 *
  13 * The above copyright notice and this permission notice shall be included in
  14 * all copies or substantial portions of the Software.
  15 *
  16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22 * THE SOFTWARE.
  23 */
  24
  25#ifndef HW_PS2_H
  26#define HW_PS2_H
  27
  28#include "hw/sysbus.h"
  29
  30#define PS2_MOUSE_BUTTON_LEFT   0x01
  31#define PS2_MOUSE_BUTTON_RIGHT  0x02
  32#define PS2_MOUSE_BUTTON_MIDDLE 0x04
  33#define PS2_MOUSE_BUTTON_SIDE   0x08
  34#define PS2_MOUSE_BUTTON_EXTRA  0x10
  35
  36struct PS2DeviceClass {
  37    SysBusDeviceClass parent_class;
  38
  39    ResettablePhases parent_phases;
  40};
  41
  42/*
  43 * PS/2 buffer size. Keep 256 bytes for compatibility with
  44 * older QEMU versions.
  45 */
  46#define PS2_BUFFER_SIZE     256
  47
  48typedef struct {
  49    uint8_t data[PS2_BUFFER_SIZE];
  50    int rptr, wptr, cwptr, count;
  51} PS2Queue;
  52
  53/* Output IRQ */
  54#define PS2_DEVICE_IRQ      0
  55
  56struct PS2State {
  57    SysBusDevice parent_obj;
  58
  59    PS2Queue queue;
  60    int32_t write_cmd;
  61    qemu_irq irq;
  62};
  63
  64#define TYPE_PS2_DEVICE "ps2-device"
  65OBJECT_DECLARE_TYPE(PS2State, PS2DeviceClass, PS2_DEVICE)
  66
  67struct PS2KbdState {
  68    PS2State parent_obj;
  69
  70    int scan_enabled;
  71    int translate;
  72    int scancode_set; /* 1=XT, 2=AT, 3=PS/2 */
  73    int ledstate;
  74    bool need_high_bit;
  75    unsigned int modifiers; /* bitmask of MOD_* constants above */
  76};
  77
  78#define TYPE_PS2_KBD_DEVICE "ps2-kbd"
  79OBJECT_DECLARE_SIMPLE_TYPE(PS2KbdState, PS2_KBD_DEVICE)
  80
  81struct PS2MouseState {
  82    PS2State parent_obj;
  83
  84    uint8_t mouse_status;
  85    uint8_t mouse_resolution;
  86    uint8_t mouse_sample_rate;
  87    uint8_t mouse_wrap;
  88    uint8_t mouse_type; /* 0 = PS2, 3 = IMPS/2, 4 = IMEX */
  89    uint8_t mouse_detect_state;
  90    int mouse_dx; /* current values, needed for 'poll' mode */
  91    int mouse_dy;
  92    int mouse_dz;
  93    int mouse_dw;
  94    uint8_t mouse_buttons;
  95};
  96
  97#define TYPE_PS2_MOUSE_DEVICE "ps2-mouse"
  98OBJECT_DECLARE_SIMPLE_TYPE(PS2MouseState, PS2_MOUSE_DEVICE)
  99
 100/* ps2.c */
 101void ps2_write_mouse(PS2MouseState *s, int val);
 102void ps2_write_keyboard(PS2KbdState *s, int val);
 103uint32_t ps2_read_data(PS2State *s);
 104void ps2_queue_noirq(PS2State *s, int b);
 105void ps2_queue(PS2State *s, int b);
 106void ps2_queue_2(PS2State *s, int b1, int b2);
 107void ps2_queue_3(PS2State *s, int b1, int b2, int b3);
 108void ps2_queue_4(PS2State *s, int b1, int b2, int b3, int b4);
 109void ps2_keyboard_set_translation(PS2KbdState *s, int mode);
 110void ps2_mouse_fake_event(PS2MouseState *s);
 111int ps2_queue_empty(PS2State *s);
 112
 113#endif /* HW_PS2_H */
 114