[qemu.git] / hw / ps2.c

/*
 * 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.
 */
#include "hw.h"
#include "ps2.h"
#include "console.h"

/* debug PC keyboard */
//#define DEBUG_KBD

/* debug PC keyboard : only mouse */
//#define DEBUG_MOUSE

/* Keyboard Commands */
#define KBD_CMD_SET_LEDS	0xED	/* Set keyboard leds */
#define KBD_CMD_ECHO     	0xEE
#define KBD_CMD_SCANCODE	0xF0	/* Get/set scancode set */
#define KBD_CMD_GET_ID 	        0xF2	/* get keyboard ID */
#define KBD_CMD_SET_RATE	0xF3	/* Set typematic rate */
#define KBD_CMD_ENABLE		0xF4	/* Enable scanning */
#define KBD_CMD_RESET_DISABLE	0xF5	/* reset and disable scanning */
#define KBD_CMD_RESET_ENABLE   	0xF6    /* reset and enable scanning */
#define KBD_CMD_RESET		0xFF	/* Reset */

/* Keyboard Replies */
#define KBD_REPLY_POR		0xAA	/* Power on reset */
#define KBD_REPLY_ID		0xAB	/* Keyboard ID */
#define KBD_REPLY_ACK		0xFA	/* Command ACK */
#define KBD_REPLY_RESEND	0xFE	/* Command NACK, send the cmd again */

/* Mouse Commands */
#define AUX_SET_SCALE11		0xE6	/* Set 1:1 scaling */
#define AUX_SET_SCALE21		0xE7	/* Set 2:1 scaling */
#define AUX_SET_RES		0xE8	/* Set resolution */
#define AUX_GET_SCALE		0xE9	/* Get scaling factor */
#define AUX_SET_STREAM		0xEA	/* Set stream mode */
#define AUX_POLL		0xEB	/* Poll */
#define AUX_RESET_WRAP		0xEC	/* Reset wrap mode */
#define AUX_SET_WRAP		0xEE	/* Set wrap mode */
#define AUX_SET_REMOTE		0xF0	/* Set remote mode */
#define AUX_GET_TYPE		0xF2	/* Get type */
#define AUX_SET_SAMPLE		0xF3	/* Set sample rate */
#define AUX_ENABLE_DEV		0xF4	/* Enable aux device */
#define AUX_DISABLE_DEV		0xF5	/* Disable aux device */
#define AUX_SET_DEFAULT		0xF6
#define AUX_RESET		0xFF	/* Reset aux device */
#define AUX_ACK			0xFA	/* Command byte ACK. */

#define MOUSE_STATUS_REMOTE     0x40
#define MOUSE_STATUS_ENABLED    0x20
#define MOUSE_STATUS_SCALE21    0x10

#define PS2_QUEUE_SIZE 256

typedef struct {
    uint8_t data[PS2_QUEUE_SIZE];
    int rptr, wptr, count;
} PS2Queue;

typedef struct {
    PS2Queue queue;
    int32_t write_cmd;
    void (*update_irq)(void *, int);
    void *update_arg;
} PS2State;

typedef struct {
    PS2State common;
    int scan_enabled;
    /* Qemu uses translated PC scancodes internally.  To avoid multiple
       conversions we do the translation (if any) in the PS/2 emulation
       not the keyboard controller.  */
    int translate;
    int scancode_set; /* 1=XT, 2=AT, 3=PS/2 */
} PS2KbdState;

typedef struct {
    PS2State common;
    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;
    uint8_t mouse_buttons;
} PS2MouseState;

/* Table to convert from PC scancodes to raw scancodes.  */
static const unsigned char ps2_raw_keycode[128] = {
  0, 118,  22,  30,  38,  37,  46,  54,  61,  62,  70,  69,  78,  85, 102,  13,
 21,  29,  36,  45,  44,  53,  60,  67,  68,  77,  84,  91,  90,  20,  28,  27,
 35,  43,  52,  51,  59,  66,  75,  76,  82,  14,  18,  93,  26,  34,  33,  42,
 50,  49,  58,  65,  73,  74,  89, 124,  17,  41,  88,   5,   6,   4,  12,   3,
 11,   2,  10,   1,   9, 119, 126, 108, 117, 125, 123, 107, 115, 116, 121, 105,
114, 122, 112, 113, 127,  96,  97, 120,   7,  15,  23,  31,  39,  47,  55,  63,
 71,  79,  86,  94,   8,  16,  24,  32,  40,  48,  56,  64,  72,  80,  87, 111,
 19,  25,  57,  81,  83,  92,  95,  98,  99, 100, 101, 103, 104, 106, 109, 110
};
static const unsigned char ps2_raw_keycode_set3[128] = {
  0,   8,  22,  30,  38,  37,  46,  54,  61,  62,  70,  69,  78,  85, 102,  13,
 21,  29,  36,  45,  44,  53,  60,  67,  68,  77,  84,  91,  90,  17,  28,  27,
 35,  43,  52,  51,  59,  66,  75,  76,  82,  14,  18,  92,  26,  34,  33,  42,
 50,  49,  58,  65,  73,  74,  89, 126,  25,  41,  20,   7,  15,  23,  31,  39,
 47,   2,  63,  71,  79, 118,  95, 108, 117, 125, 132, 107, 115, 116, 124, 105,
114, 122, 112, 113, 127,  96,  97,  86,  94,  15,  23,  31,  39,  47,  55,  63,
 71,  79,  86,  94,   8,  16,  24,  32,  40,  48,  56,  64,  72,  80,  87, 111,
 19,  25,  57,  81,  83,  92,  95,  98,  99, 100, 101, 103, 104, 106, 109, 110
};

void ps2_queue(void *opaque, int b)
{
    PS2State *s = (PS2State *)opaque;
    PS2Queue *q = &s->queue;

    if (q->count >= PS2_QUEUE_SIZE)
        return;
    q->data[q->wptr] = b;
    if (++q->wptr == PS2_QUEUE_SIZE)
        q->wptr = 0;
    q->count++;
    s->update_irq(s->update_arg, 1);
}

/*
   keycode is expressed as follow:
   bit 7    - 0 key pressed, 1 = key released
   bits 6-0 - translated scancode set 2
 */
static void ps2_put_keycode(void *opaque, int keycode)
{
    PS2KbdState *s = opaque;

    /* XXX: add support for scancode set 1 */
    if (!s->translate && keycode < 0xe0 && s->scancode_set > 1) {
        if (keycode & 0x80) {
            ps2_queue(&s->common, 0xf0);
        }
        if (s->scancode_set == 2) {
            keycode = ps2_raw_keycode[keycode & 0x7f];
        } else if (s->scancode_set == 3) {
            keycode = ps2_raw_keycode_set3[keycode & 0x7f];
        }
      }
    ps2_queue(&s->common, keycode);
}

uint32_t ps2_read_data(void *opaque)
{
    PS2State *s = (PS2State *)opaque;
    PS2Queue *q;
    int val, index;

    q = &s->queue;
    if (q->count == 0) {
        /* NOTE: if no data left, we return the last keyboard one
           (needed for EMM386) */
        /* XXX: need a timer to do things correctly */
        index = q->rptr - 1;
        if (index < 0)
            index = PS2_QUEUE_SIZE - 1;
        val = q->data[index];
    } else {
        val = q->data[q->rptr];
        if (++q->rptr == PS2_QUEUE_SIZE)
            q->rptr = 0;
        q->count--;
        /* reading deasserts IRQ */
        s->update_irq(s->update_arg, 0);
        /* reassert IRQs if data left */
        s->update_irq(s->update_arg, q->count != 0);
    }
    return val;
}

static void ps2_reset_keyboard(PS2KbdState *s)
{
    s->scan_enabled = 1;
    s->scancode_set = 2;
    kbd_put_ledstate(0);
}

void ps2_write_keyboard(void *opaque, int val)
{
    PS2KbdState *s = (PS2KbdState *)opaque;

    switch(s->common.write_cmd) {
    default:
    case -1:
        switch(val) {
        case 0x00:
            ps2_queue(&s->common, KBD_REPLY_ACK);
            break;
        case 0x05:
            ps2_queue(&s->common, KBD_REPLY_RESEND);
            break;
        case KBD_CMD_GET_ID:
            ps2_queue(&s->common, KBD_REPLY_ACK);
            /* We emulate a MF2 AT keyboard here */
            ps2_queue(&s->common, KBD_REPLY_ID);
            if (s->translate)
                ps2_queue(&s->common, 0x41);
            else
                ps2_queue(&s->common, 0x83);
            break;
        case KBD_CMD_ECHO:
            ps2_queue(&s->common, KBD_CMD_ECHO);
            break;
        case KBD_CMD_ENABLE:
            s->scan_enabled = 1;
            ps2_queue(&s->common, KBD_REPLY_ACK);
            break;
        case KBD_CMD_SCANCODE:
        case KBD_CMD_SET_LEDS:
        case KBD_CMD_SET_RATE:
            s->common.write_cmd = val;
            ps2_queue(&s->common, KBD_REPLY_ACK);
            break;
        case KBD_CMD_RESET_DISABLE:
            ps2_reset_keyboard(s);
            s->scan_enabled = 0;
            ps2_queue(&s->common, KBD_REPLY_ACK);
            break;
        case KBD_CMD_RESET_ENABLE:
            ps2_reset_keyboard(s);
            s->scan_enabled = 1;
            ps2_queue(&s->common, KBD_REPLY_ACK);
            break;
        case KBD_CMD_RESET:
            ps2_reset_keyboard(s);
            ps2_queue(&s->common, KBD_REPLY_ACK);
            ps2_queue(&s->common, KBD_REPLY_POR);
            break;
        default:
            ps2_queue(&s->common, KBD_REPLY_ACK);
            break;
        }
        break;
    case KBD_CMD_SCANCODE:
        if (val == 0) {
            if (s->scancode_set == 1)
                ps2_put_keycode(s, 0x43);
            else if (s->scancode_set == 2)
                ps2_put_keycode(s, 0x41);
            else if (s->scancode_set == 3)
                ps2_put_keycode(s, 0x3f);
        } else {
            if (val >= 1 && val <= 3)
                s->scancode_set = val;
            ps2_queue(&s->common, KBD_REPLY_ACK);
        }
        s->common.write_cmd = -1;
        break;
    case KBD_CMD_SET_LEDS:
        kbd_put_ledstate(val);
        ps2_queue(&s->common, KBD_REPLY_ACK);
        s->common.write_cmd = -1;
        break;
    case KBD_CMD_SET_RATE:
        ps2_queue(&s->common, KBD_REPLY_ACK);
        s->common.write_cmd = -1;
        break;
    }
}

/* Set the scancode translation mode.
   0 = raw scancodes.
   1 = translated scancodes (used by qemu internally).  */

void ps2_keyboard_set_translation(void *opaque, int mode)
{
    PS2KbdState *s = (PS2KbdState *)opaque;
    s->translate = mode;
}

static void ps2_mouse_send_packet(PS2MouseState *s)
{
    unsigned int b;
    int dx1, dy1, dz1;

    dx1 = s->mouse_dx;
    dy1 = s->mouse_dy;
    dz1 = s->mouse_dz;
    /* XXX: increase range to 8 bits ? */
    if (dx1 > 127)
        dx1 = 127;
    else if (dx1 < -127)
        dx1 = -127;
    if (dy1 > 127)
        dy1 = 127;
    else if (dy1 < -127)
        dy1 = -127;
    b = 0x08 | ((dx1 < 0) << 4) | ((dy1 < 0) << 5) | (s->mouse_buttons & 0x07);
    ps2_queue(&s->common, b);
    ps2_queue(&s->common, dx1 & 0xff);
    ps2_queue(&s->common, dy1 & 0xff);
    /* extra byte for IMPS/2 or IMEX */
    switch(s->mouse_type) {
    default:
        break;
    case 3:
        if (dz1 > 127)
            dz1 = 127;
        else if (dz1 < -127)
                dz1 = -127;
        ps2_queue(&s->common, dz1 & 0xff);
        break;
    case 4:
        if (dz1 > 7)
            dz1 = 7;
        else if (dz1 < -7)
            dz1 = -7;
        b = (dz1 & 0x0f) | ((s->mouse_buttons & 0x18) << 1);
        ps2_queue(&s->common, b);
        break;
    }

    /* update deltas */
    s->mouse_dx -= dx1;
    s->mouse_dy -= dy1;
    s->mouse_dz -= dz1;
}

static void ps2_mouse_event(void *opaque,
                            int dx, int dy, int dz, int buttons_state)
{
    PS2MouseState *s = opaque;

    /* check if deltas are recorded when disabled */
    if (!(s->mouse_status & MOUSE_STATUS_ENABLED))
        return;

    s->mouse_dx += dx;
    s->mouse_dy -= dy;
    s->mouse_dz += dz;
    /* XXX: SDL sometimes generates nul events: we delete them */
    if (s->mouse_dx == 0 && s->mouse_dy == 0 && s->mouse_dz == 0 &&
        s->mouse_buttons == buttons_state)
	return;
    s->mouse_buttons = buttons_state;

    if (!(s->mouse_status & MOUSE_STATUS_REMOTE) &&
        (s->common.queue.count < (PS2_QUEUE_SIZE - 16))) {
        for(;;) {
            /* if not remote, send event. Multiple events are sent if
               too big deltas */
            ps2_mouse_send_packet(s);
            if (s->mouse_dx == 0 && s->mouse_dy == 0 && s->mouse_dz == 0)
                break;
        }
    }
}

void ps2_mouse_fake_event(void *opaque)
{
    ps2_mouse_event(opaque, 1, 0, 0, 0);
}

void ps2_write_mouse(void *opaque, int val)
{
    PS2MouseState *s = (PS2MouseState *)opaque;
#ifdef DEBUG_MOUSE
    printf("kbd: write mouse 0x%02x\n", val);
#endif
    switch(s->common.write_cmd) {
    default:
    case -1:
        /* mouse command */
        if (s->mouse_wrap) {
            if (val == AUX_RESET_WRAP) {
                s->mouse_wrap = 0;
                ps2_queue(&s->common, AUX_ACK);
                return;
            } else if (val != AUX_RESET) {
                ps2_queue(&s->common, val);
                return;
            }
        }
        switch(val) {
        case AUX_SET_SCALE11:
            s->mouse_status &= ~MOUSE_STATUS_SCALE21;
            ps2_queue(&s->common, AUX_ACK);
            break;
        case AUX_SET_SCALE21:
            s->mouse_status |= MOUSE_STATUS_SCALE21;
            ps2_queue(&s->common, AUX_ACK);
            break;
        case AUX_SET_STREAM:
            s->mouse_status &= ~MOUSE_STATUS_REMOTE;
            ps2_queue(&s->common, AUX_ACK);
            break;
        case AUX_SET_WRAP:
            s->mouse_wrap = 1;
            ps2_queue(&s->common, AUX_ACK);
            break;
        case AUX_SET_REMOTE:
            s->mouse_status |= MOUSE_STATUS_REMOTE;
            ps2_queue(&s->common, AUX_ACK);
            break;
        case AUX_GET_TYPE:
            ps2_queue(&s->common, AUX_ACK);
            ps2_queue(&s->common, s->mouse_type);
            break;
        case AUX_SET_RES:
        case AUX_SET_SAMPLE:
            s->common.write_cmd = val;
            ps2_queue(&s->common, AUX_ACK);
            break;
        case AUX_GET_SCALE:
            ps2_queue(&s->common, AUX_ACK);
            ps2_queue(&s->common, s->mouse_status);
            ps2_queue(&s->common, s->mouse_resolution);
            ps2_queue(&s->common, s->mouse_sample_rate);
            break;
        case AUX_POLL:
            ps2_queue(&s->common, AUX_ACK);
            ps2_mouse_send_packet(s);
            break;
        case AUX_ENABLE_DEV:
            s->mouse_status |= MOUSE_STATUS_ENABLED;
            ps2_queue(&s->common, AUX_ACK);
            break;
        case AUX_DISABLE_DEV:
            s->mouse_status &= ~MOUSE_STATUS_ENABLED;
            ps2_queue(&s->common, AUX_ACK);
            break;
        case AUX_SET_DEFAULT:
            s->mouse_sample_rate = 100;
            s->mouse_resolution = 2;
            s->mouse_status = 0;
            ps2_queue(&s->common, AUX_ACK);
            break;
        case AUX_RESET:
            s->mouse_sample_rate = 100;
            s->mouse_resolution = 2;
            s->mouse_status = 0;
            s->mouse_type = 0;
            ps2_queue(&s->common, AUX_ACK);
            ps2_queue(&s->common, 0xaa);
            ps2_queue(&s->common, s->mouse_type);
            break;
        default:
            break;
        }
        break;
    case AUX_SET_SAMPLE:
        s->mouse_sample_rate = val;
        /* detect IMPS/2 or IMEX */
        switch(s->mouse_detect_state) {
        default:
        case 0:
            if (val == 200)
                s->mouse_detect_state = 1;
            break;
        case 1:
            if (val == 100)
                s->mouse_detect_state = 2;
            else if (val == 200)
                s->mouse_detect_state = 3;
            else
                s->mouse_detect_state = 0;
            break;
        case 2:
            if (val == 80)
                s->mouse_type = 3; /* IMPS/2 */
            s->mouse_detect_state = 0;
            break;
        case 3:
            if (val == 80)
                s->mouse_type = 4; /* IMEX */
            s->mouse_detect_state = 0;
            break;
        }
        ps2_queue(&s->common, AUX_ACK);
        s->common.write_cmd = -1;
        break;
    case AUX_SET_RES:
        s->mouse_resolution = val;
        ps2_queue(&s->common, AUX_ACK);
        s->common.write_cmd = -1;
        break;
    }
}

static void ps2_common_reset(PS2State *s)
{
    PS2Queue *q;
    s->write_cmd = -1;
    q = &s->queue;
    q->rptr = 0;
    q->wptr = 0;
    q->count = 0;
    s->update_irq(s->update_arg, 0);
}

static void ps2_kbd_reset(void *opaque)
{
    PS2KbdState *s = (PS2KbdState *) opaque;

    ps2_common_reset(&s->common);
    s->scan_enabled = 0;
    s->translate = 0;
    s->scancode_set = 0;
}

static void ps2_mouse_reset(void *opaque)
{
    PS2MouseState *s = (PS2MouseState *) opaque;

    ps2_common_reset(&s->common);
    s->mouse_status = 0;
    s->mouse_resolution = 0;
    s->mouse_sample_rate = 0;
    s->mouse_wrap = 0;
    s->mouse_type = 0;
    s->mouse_detect_state = 0;
    s->mouse_dx = 0;
    s->mouse_dy = 0;
    s->mouse_dz = 0;
    s->mouse_buttons = 0;
}

static const VMStateDescription vmstate_ps2_common = {
    .name = "PS2 Common State",
    .version_id = 3,
    .minimum_version_id = 2,
    .minimum_version_id_old = 2,
    .fields      = (VMStateField []) {
        VMSTATE_INT32(write_cmd, PS2State),
        VMSTATE_INT32(queue.rptr, PS2State),
        VMSTATE_INT32(queue.wptr, PS2State),
        VMSTATE_INT32(queue.count, PS2State),
        VMSTATE_BUFFER(queue.data, PS2State),
        VMSTATE_END_OF_LIST()
    }
};

static int ps2_kbd_post_load(void* opaque, int version_id)
{
    PS2KbdState *s = (PS2KbdState*)opaque;

    if (version_id == 2)
        s->scancode_set=2;
    return 0;
}

static const VMStateDescription vmstate_ps2_keyboard = {
    .name = "ps2kbd",
    .version_id = 3,
    .minimum_version_id = 2,
    .minimum_version_id_old = 2,
    .post_load = ps2_kbd_post_load,
    .fields      = (VMStateField []) {
        VMSTATE_STRUCT(common, PS2KbdState, 0, vmstate_ps2_common, PS2State),
        VMSTATE_INT32(scan_enabled, PS2KbdState),
        VMSTATE_INT32(translate, PS2KbdState),
        VMSTATE_INT32_V(scancode_set, PS2KbdState,3),
        VMSTATE_END_OF_LIST()
    }
};

static const VMStateDescription vmstate_ps2_mouse = {
    .name = "ps2mouse",
    .version_id = 2,
    .minimum_version_id = 2,
    .minimum_version_id_old = 2,
    .fields      = (VMStateField []) {
        VMSTATE_STRUCT(common, PS2MouseState, 0, vmstate_ps2_common, PS2State),
        VMSTATE_UINT8(mouse_status, PS2MouseState),
        VMSTATE_UINT8(mouse_resolution, PS2MouseState),
        VMSTATE_UINT8(mouse_sample_rate, PS2MouseState),
        VMSTATE_UINT8(mouse_wrap, PS2MouseState),
        VMSTATE_UINT8(mouse_type, PS2MouseState),
        VMSTATE_UINT8(mouse_detect_state, PS2MouseState),
        VMSTATE_INT32(mouse_dx, PS2MouseState),
        VMSTATE_INT32(mouse_dy, PS2MouseState),
        VMSTATE_INT32(mouse_dz, PS2MouseState),
        VMSTATE_UINT8(mouse_buttons, PS2MouseState),
        VMSTATE_END_OF_LIST()
    }
};

void *ps2_kbd_init(void (*update_irq)(void *, int), void *update_arg)
{
    PS2KbdState *s = (PS2KbdState *)qemu_mallocz(sizeof(PS2KbdState));

    s->common.update_irq = update_irq;
    s->common.update_arg = update_arg;
    s->scancode_set = 2;
    vmstate_register(NULL, 0, &vmstate_ps2_keyboard, s);
    qemu_add_kbd_event_handler(ps2_put_keycode, s);
    qemu_register_reset(ps2_kbd_reset, s);
    return s;
}

void *ps2_mouse_init(void (*update_irq)(void *, int), void *update_arg)
{
    PS2MouseState *s = (PS2MouseState *)qemu_mallocz(sizeof(PS2MouseState));

    s->common.update_irq = update_irq;
    s->common.update_arg = update_arg;
    vmstate_register(NULL, 0, &vmstate_ps2_mouse, s);
    qemu_add_mouse_event_handler(ps2_mouse_event, s, 0, "QEMU PS/2 Mouse");
    qemu_register_reset(ps2_mouse_reset, s);
    return s;
}
Commit	Line	Data
0e43e99c FB	1	/*
0e43e99c FB	2	* QEMU PS/2 keyboard/mouse emulation
5fafdf24	3	*
0e43e99c	4	* Copyright (c) 2003 Fabrice Bellard
5fafdf24	5	*
0e43e99c FB	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	*/
87ecb68b PB	24	#include "hw.h"
	25	#include "ps2.h"
	26	#include "console.h"
0e43e99c FB	27
	28	/* debug PC keyboard */
	29	//#define DEBUG_KBD
	30
	31	/* debug PC keyboard : only mouse */
	32	//#define DEBUG_MOUSE
	33
	34	/* Keyboard Commands */
	35	#define KBD_CMD_SET_LEDS 0xED /* Set keyboard leds */
	36	#define KBD_CMD_ECHO 0xEE
e7d93956	37	#define KBD_CMD_SCANCODE 0xF0 /* Get/set scancode set */
0e43e99c FB	38	#define KBD_CMD_GET_ID 0xF2 /* get keyboard ID */
	39	#define KBD_CMD_SET_RATE 0xF3 /* Set typematic rate */
	40	#define KBD_CMD_ENABLE 0xF4 /* Enable scanning */
	41	#define KBD_CMD_RESET_DISABLE 0xF5 /* reset and disable scanning */
	42	#define KBD_CMD_RESET_ENABLE 0xF6 /* reset and enable scanning */
	43	#define KBD_CMD_RESET 0xFF /* Reset */
	44
	45	/* Keyboard Replies */
	46	#define KBD_REPLY_POR 0xAA /* Power on reset */
35c4d671	47	#define KBD_REPLY_ID 0xAB /* Keyboard ID */
0e43e99c FB	48	#define KBD_REPLY_ACK 0xFA /* Command ACK */
	49	#define KBD_REPLY_RESEND 0xFE /* Command NACK, send the cmd again */
	50
	51	/* Mouse Commands */
	52	#define AUX_SET_SCALE11 0xE6 /* Set 1:1 scaling */
	53	#define AUX_SET_SCALE21 0xE7 /* Set 2:1 scaling */
	54	#define AUX_SET_RES 0xE8 /* Set resolution */
	55	#define AUX_GET_SCALE 0xE9 /* Get scaling factor */
	56	#define AUX_SET_STREAM 0xEA /* Set stream mode */
	57	#define AUX_POLL 0xEB /* Poll */
	58	#define AUX_RESET_WRAP 0xEC /* Reset wrap mode */
	59	#define AUX_SET_WRAP 0xEE /* Set wrap mode */
	60	#define AUX_SET_REMOTE 0xF0 /* Set remote mode */
	61	#define AUX_GET_TYPE 0xF2 /* Get type */
	62	#define AUX_SET_SAMPLE 0xF3 /* Set sample rate */
	63	#define AUX_ENABLE_DEV 0xF4 /* Enable aux device */
	64	#define AUX_DISABLE_DEV 0xF5 /* Disable aux device */
	65	#define AUX_SET_DEFAULT 0xF6
	66	#define AUX_RESET 0xFF /* Reset aux device */
	67	#define AUX_ACK 0xFA /* Command byte ACK. */
	68
	69	#define MOUSE_STATUS_REMOTE 0x40
	70	#define MOUSE_STATUS_ENABLED 0x20
	71	#define MOUSE_STATUS_SCALE21 0x10
	72
	73	#define PS2_QUEUE_SIZE 256
	74
	75	typedef struct {
	76	uint8_t data[PS2_QUEUE_SIZE];
	77	int rptr, wptr, count;
	78	} PS2Queue;
	79
	80	typedef struct {
	81	PS2Queue queue;
	82	int32_t write_cmd;
	83	void (update_irq)(void , int);
	84	void *update_arg;
	85	} PS2State;
	86
	87	typedef struct {
	88	PS2State common;
	89	int scan_enabled;
f94f5d71 PB	90	/* Qemu uses translated PC scancodes internally. To avoid multiple
	91	conversions we do the translation (if any) in the PS/2 emulation
	92	not the keyboard controller. */
	93	int translate;
e7d93956	94	int scancode_set; /* 1=XT, 2=AT, 3=PS/2 */
0e43e99c FB	95	} PS2KbdState;
	96
	97	typedef struct {
	98	PS2State common;
	99	uint8_t mouse_status;
	100	uint8_t mouse_resolution;
	101	uint8_t mouse_sample_rate;
	102	uint8_t mouse_wrap;
	103	uint8_t mouse_type; /* 0 = PS2, 3 = IMPS/2, 4 = IMEX */
	104	uint8_t mouse_detect_state;
	105	int mouse_dx; /* current values, needed for 'poll' mode */
	106	int mouse_dy;
	107	int mouse_dz;
	108	uint8_t mouse_buttons;
	109	} PS2MouseState;
	110
f94f5d71 PB	111	/* Table to convert from PC scancodes to raw scancodes. */
f94f5d71 PB	112	static const unsigned char ps2_raw_keycode[128] = {
7096a96d RT	113	0, 118, 22, 30, 38, 37, 46, 54, 61, 62, 70, 69, 78, 85, 102, 13,
	114	21, 29, 36, 45, 44, 53, 60, 67, 68, 77, 84, 91, 90, 20, 28, 27,
	115	35, 43, 52, 51, 59, 66, 75, 76, 82, 14, 18, 93, 26, 34, 33, 42,
	116	50, 49, 58, 65, 73, 74, 89, 124, 17, 41, 88, 5, 6, 4, 12, 3,
	117	11, 2, 10, 1, 9, 119, 126, 108, 117, 125, 123, 107, 115, 116, 121, 105,
	118	114, 122, 112, 113, 127, 96, 97, 120, 7, 15, 23, 31, 39, 47, 55, 63,
	119	71, 79, 86, 94, 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 87, 111,
	120	19, 25, 57, 81, 83, 92, 95, 98, 99, 100, 101, 103, 104, 106, 109, 110
	121	};
	122	static const unsigned char ps2_raw_keycode_set3[128] = {
	123	0, 8, 22, 30, 38, 37, 46, 54, 61, 62, 70, 69, 78, 85, 102, 13,
	124	21, 29, 36, 45, 44, 53, 60, 67, 68, 77, 84, 91, 90, 17, 28, 27,
	125	35, 43, 52, 51, 59, 66, 75, 76, 82, 14, 18, 92, 26, 34, 33, 42,
	126	50, 49, 58, 65, 73, 74, 89, 126, 25, 41, 20, 7, 15, 23, 31, 39,
	127	47, 2, 63, 71, 79, 118, 95, 108, 117, 125, 132, 107, 115, 116, 124, 105,
	128	114, 122, 112, 113, 127, 96, 97, 86, 94, 15, 23, 31, 39, 47, 55, 63,
	129	71, 79, 86, 94, 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 87, 111,
	130	19, 25, 57, 81, 83, 92, 95, 98, 99, 100, 101, 103, 104, 106, 109, 110
f94f5d71 PB	131	};
f94f5d71 PB	132
0e43e99c FB	133	void ps2_queue(void *opaque, int b)
	134	{
	135	PS2State s = (PS2State )opaque;
	136	PS2Queue *q = &s->queue;
	137
	138	if (q->count >= PS2_QUEUE_SIZE)
	139	return;
	140	q->data[q->wptr] = b;
	141	if (++q->wptr == PS2_QUEUE_SIZE)
	142	q->wptr = 0;
	143	q->count++;
	144	s->update_irq(s->update_arg, 1);
	145	}
	146
35c4d671 AJ	147	/*
	148	keycode is expressed as follow:
	149	bit 7 - 0 key pressed, 1 = key released
	150	bits 6-0 - translated scancode set 2
	151	*/
0e43e99c FB	152	static void ps2_put_keycode(void *opaque, int keycode)
0e43e99c FB	153	{
f94f5d71	154	PS2KbdState *s = opaque;
e7d93956	155
7096a96d RT	156	/* XXX: add support for scancode set 1 */
	157	if (!s->translate && keycode < 0xe0 && s->scancode_set > 1) {
	158	if (keycode & 0x80) {
f94f5d71	159	ps2_queue(&s->common, 0xf0);
7096a96d RT	160	}
	161	if (s->scancode_set == 2) {
	162	keycode = ps2_raw_keycode[keycode & 0x7f];
	163	} else if (s->scancode_set == 3) {
	164	keycode = ps2_raw_keycode_set3[keycode & 0x7f];
	165	}
f94f5d71	166	}
0e43e99c FB	167	ps2_queue(&s->common, keycode);
	168	}
	169
	170	uint32_t ps2_read_data(void *opaque)
	171	{
	172	PS2State s = (PS2State )opaque;
	173	PS2Queue *q;
	174	int val, index;
3b46e624	175
0e43e99c FB	176	q = &s->queue;
	177	if (q->count == 0) {
	178	/* NOTE: if no data left, we return the last keyboard one
	179	(needed for EMM386) */
	180	/* XXX: need a timer to do things correctly */
	181	index = q->rptr - 1;
	182	if (index < 0)
	183	index = PS2_QUEUE_SIZE - 1;
	184	val = q->data[index];
	185	} else {
	186	val = q->data[q->rptr];
	187	if (++q->rptr == PS2_QUEUE_SIZE)
	188	q->rptr = 0;
	189	q->count--;
	190	/* reading deasserts IRQ */
	191	s->update_irq(s->update_arg, 0);
	192	/* reassert IRQs if data left */
	193	s->update_irq(s->update_arg, q->count != 0);
	194	}
	195	return val;
	196	}
	197
	198	static void ps2_reset_keyboard(PS2KbdState *s)
	199	{
	200	s->scan_enabled = 1;
e7d93956	201	s->scancode_set = 2;
6937b376	202	kbd_put_ledstate(0);
0e43e99c FB	203	}
	204
	205	void ps2_write_keyboard(void *opaque, int val)
	206	{
	207	PS2KbdState s = (PS2KbdState )opaque;
	208
	209	switch(s->common.write_cmd) {
	210	default:
	211	case -1:
	212	switch(val) {
	213	case 0x00:
	214	ps2_queue(&s->common, KBD_REPLY_ACK);
	215	break;
	216	case 0x05:
	217	ps2_queue(&s->common, KBD_REPLY_RESEND);
	218	break;
	219	case KBD_CMD_GET_ID:
	220	ps2_queue(&s->common, KBD_REPLY_ACK);
e7d93956	221	/* We emulate a MF2 AT keyboard here */
35c4d671 AJ	222	ps2_queue(&s->common, KBD_REPLY_ID);
	223	if (s->translate)
	224	ps2_queue(&s->common, 0x41);
	225	else
	226	ps2_queue(&s->common, 0x83);
0e43e99c FB	227	break;
	228	case KBD_CMD_ECHO:
	229	ps2_queue(&s->common, KBD_CMD_ECHO);
	230	break;
	231	case KBD_CMD_ENABLE:
	232	s->scan_enabled = 1;
	233	ps2_queue(&s->common, KBD_REPLY_ACK);
	234	break;
e7d93956	235	case KBD_CMD_SCANCODE:
0e43e99c FB	236	case KBD_CMD_SET_LEDS:
	237	case KBD_CMD_SET_RATE:
	238	s->common.write_cmd = val;
	239	ps2_queue(&s->common, KBD_REPLY_ACK);
	240	break;
	241	case KBD_CMD_RESET_DISABLE:
	242	ps2_reset_keyboard(s);
	243	s->scan_enabled = 0;
	244	ps2_queue(&s->common, KBD_REPLY_ACK);
	245	break;
	246	case KBD_CMD_RESET_ENABLE:
	247	ps2_reset_keyboard(s);
	248	s->scan_enabled = 1;
	249	ps2_queue(&s->common, KBD_REPLY_ACK);
	250	break;
	251	case KBD_CMD_RESET:
	252	ps2_reset_keyboard(s);
	253	ps2_queue(&s->common, KBD_REPLY_ACK);
	254	ps2_queue(&s->common, KBD_REPLY_POR);
	255	break;
	256	default:
	257	ps2_queue(&s->common, KBD_REPLY_ACK);
	258	break;
	259	}
	260	break;
e7d93956 AJ	261	case KBD_CMD_SCANCODE:
	262	if (val == 0) {
	263	if (s->scancode_set == 1)
	264	ps2_put_keycode(s, 0x43);
	265	else if (s->scancode_set == 2)
	266	ps2_put_keycode(s, 0x41);
	267	else if (s->scancode_set == 3)
	268	ps2_put_keycode(s, 0x3f);
	269	} else {
	270	if (val >= 1 && val <= 3)
	271	s->scancode_set = val;
	272	ps2_queue(&s->common, KBD_REPLY_ACK);
	273	}
	274	s->common.write_cmd = -1;
	275	break;
0e43e99c	276	case KBD_CMD_SET_LEDS:
6937b376	277	kbd_put_ledstate(val);
0e43e99c FB	278	ps2_queue(&s->common, KBD_REPLY_ACK);
	279	s->common.write_cmd = -1;
	280	break;
	281	case KBD_CMD_SET_RATE:
	282	ps2_queue(&s->common, KBD_REPLY_ACK);
	283	s->common.write_cmd = -1;
	284	break;
	285	}
	286	}
	287
f94f5d71 PB	288	/* Set the scancode translation mode.
	289	0 = raw scancodes.
	290	1 = translated scancodes (used by qemu internally). */
	291
	292	void ps2_keyboard_set_translation(void *opaque, int mode)
	293	{
	294	PS2KbdState s = (PS2KbdState )opaque;
	295	s->translate = mode;
	296	}
	297
0e43e99c FB	298	static void ps2_mouse_send_packet(PS2MouseState *s)
	299	{
	300	unsigned int b;
	301	int dx1, dy1, dz1;
	302
	303	dx1 = s->mouse_dx;
	304	dy1 = s->mouse_dy;
	305	dz1 = s->mouse_dz;
	306	/* XXX: increase range to 8 bits ? */
	307	if (dx1 > 127)
	308	dx1 = 127;
	309	else if (dx1 < -127)
	310	dx1 = -127;
	311	if (dy1 > 127)
	312	dy1 = 127;
	313	else if (dy1 < -127)
	314	dy1 = -127;
	315	b = 0x08 \| ((dx1 < 0) << 4) \| ((dy1 < 0) << 5) \| (s->mouse_buttons & 0x07);
	316	ps2_queue(&s->common, b);
	317	ps2_queue(&s->common, dx1 & 0xff);
	318	ps2_queue(&s->common, dy1 & 0xff);
	319	/* extra byte for IMPS/2 or IMEX */
	320	switch(s->mouse_type) {
	321	default:
	322	break;
	323	case 3:
	324	if (dz1 > 127)
	325	dz1 = 127;
	326	else if (dz1 < -127)
	327	dz1 = -127;
	328	ps2_queue(&s->common, dz1 & 0xff);
	329	break;
	330	case 4:
	331	if (dz1 > 7)
	332	dz1 = 7;
	333	else if (dz1 < -7)
	334	dz1 = -7;
	335	b = (dz1 & 0x0f) \| ((s->mouse_buttons & 0x18) << 1);
	336	ps2_queue(&s->common, b);
	337	break;
	338	}
	339
	340	/* update deltas */
	341	s->mouse_dx -= dx1;
	342	s->mouse_dy -= dy1;
	343	s->mouse_dz -= dz1;
	344	}
	345
5fafdf24	346	static void ps2_mouse_event(void *opaque,
0e43e99c FB	347	int dx, int dy, int dz, int buttons_state)
	348	{
	349	PS2MouseState *s = opaque;
	350
	351	/* check if deltas are recorded when disabled */
	352	if (!(s->mouse_status & MOUSE_STATUS_ENABLED))
	353	return;
	354
	355	s->mouse_dx += dx;
	356	s->mouse_dy -= dy;
	357	s->mouse_dz += dz;
	358	/* XXX: SDL sometimes generates nul events: we delete them */
	359	if (s->mouse_dx == 0 && s->mouse_dy == 0 && s->mouse_dz == 0 &&
	360	s->mouse_buttons == buttons_state)
	361	return;
	362	s->mouse_buttons = buttons_state;
3b46e624	363
0e43e99c FB	364	if (!(s->mouse_status & MOUSE_STATUS_REMOTE) &&
	365	(s->common.queue.count < (PS2_QUEUE_SIZE - 16))) {
	366	for(;;) {
	367	/* if not remote, send event. Multiple events are sent if
	368	too big deltas */
	369	ps2_mouse_send_packet(s);
	370	if (s->mouse_dx == 0 && s->mouse_dy == 0 && s->mouse_dz == 0)
	371	break;
	372	}
	373	}
	374	}
	375
548df2ac TS	376	void ps2_mouse_fake_event(void *opaque)
	377	{
	378	ps2_mouse_event(opaque, 1, 0, 0, 0);
	379	}
	380
0e43e99c FB	381	void ps2_write_mouse(void *opaque, int val)
	382	{
	383	PS2MouseState s = (PS2MouseState )opaque;
	384	#ifdef DEBUG_MOUSE
	385	printf("kbd: write mouse 0x%02x\n", val);
	386	#endif
	387	switch(s->common.write_cmd) {
	388	default:
	389	case -1:
	390	/* mouse command */
	391	if (s->mouse_wrap) {
	392	if (val == AUX_RESET_WRAP) {
	393	s->mouse_wrap = 0;
	394	ps2_queue(&s->common, AUX_ACK);
	395	return;
	396	} else if (val != AUX_RESET) {
	397	ps2_queue(&s->common, val);
	398	return;
	399	}
	400	}
	401	switch(val) {
	402	case AUX_SET_SCALE11:
	403	s->mouse_status &= ~MOUSE_STATUS_SCALE21;
	404	ps2_queue(&s->common, AUX_ACK);
	405	break;
	406	case AUX_SET_SCALE21:
	407	s->mouse_status \|= MOUSE_STATUS_SCALE21;
	408	ps2_queue(&s->common, AUX_ACK);
	409	break;
	410	case AUX_SET_STREAM:
	411	s->mouse_status &= ~MOUSE_STATUS_REMOTE;
	412	ps2_queue(&s->common, AUX_ACK);
	413	break;
	414	case AUX_SET_WRAP:
	415	s->mouse_wrap = 1;
	416	ps2_queue(&s->common, AUX_ACK);
	417	break;
	418	case AUX_SET_REMOTE:
	419	s->mouse_status \|= MOUSE_STATUS_REMOTE;
	420	ps2_queue(&s->common, AUX_ACK);
	421	break;
	422	case AUX_GET_TYPE:
	423	ps2_queue(&s->common, AUX_ACK);
	424	ps2_queue(&s->common, s->mouse_type);
	425	break;
	426	case AUX_SET_RES:
	427	case AUX_SET_SAMPLE:
	428	s->common.write_cmd = val;
	429	ps2_queue(&s->common, AUX_ACK);
	430	break;
	431	case AUX_GET_SCALE:
	432	ps2_queue(&s->common, AUX_ACK);
	433	ps2_queue(&s->common, s->mouse_status);
	434	ps2_queue(&s->common, s->mouse_resolution);
	435	ps2_queue(&s->common, s->mouse_sample_rate);
	436	break;
	437	case AUX_POLL:
	438	ps2_queue(&s->common, AUX_ACK);
	439	ps2_mouse_send_packet(s);
	440	break;
	441	case AUX_ENABLE_DEV:
	442	s->mouse_status \|= MOUSE_STATUS_ENABLED;
	443	ps2_queue(&s->common, AUX_ACK);
	444	break;
445	case AUX_DISABLE_DEV:
446	s->mouse_status &= ~MOUSE_STATUS_ENABLED;
447	ps2_queue(&s->common, AUX_ACK);
448	break;
449	case AUX_SET_DEFAULT:
450	s->mouse_sample_rate = 100;
451	s->mouse_resolution = 2;
452	s->mouse_status = 0;
453	ps2_queue(&s->common, AUX_ACK);
454	break;
455	case AUX_RESET:
456	s->mouse_sample_rate = 100;
457	s->mouse_resolution = 2;
458	s->mouse_status = 0;
459	s->mouse_type = 0;
460	ps2_queue(&s->common, AUX_ACK);
461	ps2_queue(&s->common, 0xaa);
462	ps2_queue(&s->common, s->mouse_type);
463	break;
464	default:
465	break;
466	}
467	break;
468	case AUX_SET_SAMPLE:
469	s->mouse_sample_rate = val;
470	/* detect IMPS/2 or IMEX */
471	switch(s->mouse_detect_state) {
472	default:
473	case 0:
474	if (val == 200)
475	s->mouse_detect_state = 1;
476	break;
477	case 1:
478	if (val == 100)
479	s->mouse_detect_state = 2;
480	else if (val == 200)
481	s->mouse_detect_state = 3;
482	else
483	s->mouse_detect_state = 0;
484	break;
485	case 2:
5fafdf24	486	if (val == 80)
0e43e99c FB	487	s->mouse_type = 3; /* IMPS/2 */
	488	s->mouse_detect_state = 0;
	489	break;
	490	case 3:
5fafdf24	491	if (val == 80)
0e43e99c FB	492	s->mouse_type = 4; /* IMEX */
	493	s->mouse_detect_state = 0;
	494	break;
	495	}
	496	ps2_queue(&s->common, AUX_ACK);
	497	s->common.write_cmd = -1;
	498	break;
	499	case AUX_SET_RES:
	500	s->mouse_resolution = val;
	501	ps2_queue(&s->common, AUX_ACK);
	502	s->common.write_cmd = -1;
	503	break;
	504	}
	505	}
	506
ef74679a	507	static void ps2_common_reset(PS2State *s)
0e43e99c	508	{
0e43e99c FB	509	PS2Queue *q;
	510	s->write_cmd = -1;
	511	q = &s->queue;
	512	q->rptr = 0;
	513	q->wptr = 0;
	514	q->count = 0;
deeccef3	515	s->update_irq(s->update_arg, 0);
0e43e99c FB	516	}
0e43e99c FB	517
ef74679a DS	518	static void ps2_kbd_reset(void *opaque)
	519	{
	520	PS2KbdState s = (PS2KbdState ) opaque;
	521
	522	ps2_common_reset(&s->common);
	523	s->scan_enabled = 0;
	524	s->translate = 0;
	525	s->scancode_set = 0;
	526	}
	527
	528	static void ps2_mouse_reset(void *opaque)
	529	{
	530	PS2MouseState s = (PS2MouseState ) opaque;
	531
	532	ps2_common_reset(&s->common);
	533	s->mouse_status = 0;
	534	s->mouse_resolution = 0;
	535	s->mouse_sample_rate = 0;
	536	s->mouse_wrap = 0;
	537	s->mouse_type = 0;
	538	s->mouse_detect_state = 0;
	539	s->mouse_dx = 0;
	540	s->mouse_dy = 0;
	541	s->mouse_dz = 0;
	542	s->mouse_buttons = 0;
	543	}
	544
b31442c3 JQ	545	static const VMStateDescription vmstate_ps2_common = {
	546	.name = "PS2 Common State",
	547	.version_id = 3,
	548	.minimum_version_id = 2,
	549	.minimum_version_id_old = 2,
	550	.fields = (VMStateField []) {
	551	VMSTATE_INT32(write_cmd, PS2State),
	552	VMSTATE_INT32(queue.rptr, PS2State),
	553	VMSTATE_INT32(queue.wptr, PS2State),
	554	VMSTATE_INT32(queue.count, PS2State),
	555	VMSTATE_BUFFER(queue.data, PS2State),
	556	VMSTATE_END_OF_LIST()
	557	}
	558	};
0e43e99c	559
db596c53	560	static int ps2_kbd_post_load(void* opaque, int version_id)
0e43e99c FB	561	{
0e43e99c FB	562	PS2KbdState s = (PS2KbdState)opaque;
7783e9f0	563
db596c53	564	if (version_id == 2)
e7d93956	565	s->scancode_set=2;
0e43e99c FB	566	return 0;
	567	}
	568
b31442c3 JQ	569	static const VMStateDescription vmstate_ps2_keyboard = {
	570	.name = "ps2kbd",
	571	.version_id = 3,
db596c53	572	.minimum_version_id = 2,
b31442c3	573	.minimum_version_id_old = 2,
db596c53	574	.post_load = ps2_kbd_post_load,
b31442c3 JQ	575	.fields = (VMStateField []) {
	576	VMSTATE_STRUCT(common, PS2KbdState, 0, vmstate_ps2_common, PS2State),
	577	VMSTATE_INT32(scan_enabled, PS2KbdState),
	578	VMSTATE_INT32(translate, PS2KbdState),
	579	VMSTATE_INT32_V(scancode_set, PS2KbdState,3),
	580	VMSTATE_END_OF_LIST()
	581	}
	582	};
7783e9f0	583
b31442c3 JQ	584	static const VMStateDescription vmstate_ps2_mouse = {
	585	.name = "ps2mouse",
	586	.version_id = 2,
	587	.minimum_version_id = 2,
	588	.minimum_version_id_old = 2,
	589	.fields = (VMStateField []) {
	590	VMSTATE_STRUCT(common, PS2MouseState, 0, vmstate_ps2_common, PS2State),
	591	VMSTATE_UINT8(mouse_status, PS2MouseState),
	592	VMSTATE_UINT8(mouse_resolution, PS2MouseState),
	593	VMSTATE_UINT8(mouse_sample_rate, PS2MouseState),
	594	VMSTATE_UINT8(mouse_wrap, PS2MouseState),
	595	VMSTATE_UINT8(mouse_type, PS2MouseState),
	596	VMSTATE_UINT8(mouse_detect_state, PS2MouseState),
	597	VMSTATE_INT32(mouse_dx, PS2MouseState),
	598	VMSTATE_INT32(mouse_dy, PS2MouseState),
	599	VMSTATE_INT32(mouse_dz, PS2MouseState),
	600	VMSTATE_UINT8(mouse_buttons, PS2MouseState),
	601	VMSTATE_END_OF_LIST()
	602	}
	603	};
0e43e99c FB	604
	605	void ps2_kbd_init(void (update_irq)(void , int), void update_arg)
	606	{
	607	PS2KbdState s = (PS2KbdState )qemu_mallocz(sizeof(PS2KbdState));
	608
	609	s->common.update_irq = update_irq;
	610	s->common.update_arg = update_arg;
e7d93956	611	s->scancode_set = 2;
0be71e32	612	vmstate_register(NULL, 0, &vmstate_ps2_keyboard, s);
0e43e99c	613	qemu_add_kbd_event_handler(ps2_put_keycode, s);
ef74679a	614	qemu_register_reset(ps2_kbd_reset, s);
0e43e99c FB	615	return s;
	616	}
	617
	618	void ps2_mouse_init(void (update_irq)(void , int), void update_arg)
	619	{
	620	PS2MouseState s = (PS2MouseState )qemu_mallocz(sizeof(PS2MouseState));
	621
	622	s->common.update_irq = update_irq;
	623	s->common.update_arg = update_arg;
0be71e32	624	vmstate_register(NULL, 0, &vmstate_ps2_mouse, s);
455204eb	625	qemu_add_mouse_event_handler(ps2_mouse_event, s, 0, "QEMU PS/2 Mouse");
ef74679a	626	qemu_register_reset(ps2_mouse_reset, s);
0e43e99c FB	627	return s;
0e43e99c FB	628	}