qemu

FORK: QEMU emulator
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ps2.h (3381B)

      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 
     36 struct PS2DeviceClass {
     37     SysBusDeviceClass parent_class;
     38 
     39     DeviceReset parent_reset;
     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 
     48 typedef 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 
     56 struct 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"
     65 OBJECT_DECLARE_TYPE(PS2State, PS2DeviceClass, PS2_DEVICE)
     66 
     67 struct 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"
     79 OBJECT_DECLARE_SIMPLE_TYPE(PS2KbdState, PS2_KBD_DEVICE)
     80 
     81 struct 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"
     98 OBJECT_DECLARE_SIMPLE_TYPE(PS2MouseState, PS2_MOUSE_DEVICE)
     99 
    100 /* ps2.c */
    101 void ps2_write_mouse(PS2MouseState *s, int val);
    102 void ps2_write_keyboard(PS2KbdState *s, int val);
    103 uint32_t ps2_read_data(PS2State *s);
    104 void ps2_queue_noirq(PS2State *s, int b);
    105 void ps2_queue(PS2State *s, int b);
    106 void ps2_queue_2(PS2State *s, int b1, int b2);
    107 void ps2_queue_3(PS2State *s, int b1, int b2, int b3);
    108 void ps2_queue_4(PS2State *s, int b1, int b2, int b3, int b4);
    109 void ps2_keyboard_set_translation(PS2KbdState *s, int mode);
    110 void ps2_mouse_fake_event(PS2MouseState *s);
    111 int ps2_queue_empty(PS2State *s);
    112 
    113 #endif /* HW_PS2_H */