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/*
* QEMU PS/2 keyboard/mouse emulation
*
* Copyright (C) 2003 Fabrice Bellard
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef HW_PS2_H
#define HW_PS2_H
#include "hw/sysbus.h"
#define PS2_MOUSE_BUTTON_LEFT 0x01
#define PS2_MOUSE_BUTTON_RIGHT 0x02
#define PS2_MOUSE_BUTTON_MIDDLE 0x04
#define PS2_MOUSE_BUTTON_SIDE 0x08
#define PS2_MOUSE_BUTTON_EXTRA 0x10
struct PS2DeviceClass {
SysBusDeviceClass parent_class;
DeviceReset parent_reset;
};
/*
* PS/2 buffer size. Keep 256 bytes for compatibility with
* older QEMU versions.
*/
#define PS2_BUFFER_SIZE 256
typedef struct {
uint8_t data[PS2_BUFFER_SIZE];
int rptr, wptr, cwptr, count;
} PS2Queue;
/* Output IRQ */
#define PS2_DEVICE_IRQ 0
struct PS2State {
SysBusDevice parent_obj;
PS2Queue queue;
int32_t write_cmd;
qemu_irq irq;
};
#define TYPE_PS2_DEVICE "ps2-device"
OBJECT_DECLARE_TYPE(PS2State, PS2DeviceClass, PS2_DEVICE)
struct PS2KbdState {
PS2State parent_obj;
int scan_enabled;
int translate;
int scancode_set; /* 1=XT, 2=AT, 3=PS/2 */
int ledstate;
bool need_high_bit;
unsigned int modifiers; /* bitmask of MOD_* constants above */
};
#define TYPE_PS2_KBD_DEVICE "ps2-kbd"
OBJECT_DECLARE_SIMPLE_TYPE(PS2KbdState, PS2_KBD_DEVICE)
struct PS2MouseState {
PS2State parent_obj;
uint8_t mouse_status;
uint8_t mouse_resolution;
uint8_t mouse_sample_rate;
uint8_t mouse_wrap;
uint8_t mouse_type; /* 0 = PS2, 3 = IMPS/2, 4 = IMEX */
uint8_t mouse_detect_state;
int mouse_dx; /* current values, needed for 'poll' mode */
int mouse_dy;
int mouse_dz;
int mouse_dw;
uint8_t mouse_buttons;
};
#define TYPE_PS2_MOUSE_DEVICE "ps2-mouse"
OBJECT_DECLARE_SIMPLE_TYPE(PS2MouseState, PS2_MOUSE_DEVICE)
/* ps2.c */
void ps2_write_mouse(PS2MouseState *s, int val);
void ps2_write_keyboard(PS2KbdState *s, int val);
uint32_t ps2_read_data(PS2State *s);
void ps2_queue_noirq(PS2State *s, int b);
void ps2_queue(PS2State *s, int b);
void ps2_queue_2(PS2State *s, int b1, int b2);
void ps2_queue_3(PS2State *s, int b1, int b2, int b3);
void ps2_queue_4(PS2State *s, int b1, int b2, int b3, int b4);
void ps2_keyboard_set_translation(PS2KbdState *s, int mode);
void ps2_mouse_fake_event(PS2MouseState *s);
int ps2_queue_empty(PS2State *s);
#endif /* HW_PS2_H */
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