289e09e77b
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@718 c046a42c-6fe2-441c-8c8c-71466251a162
655 lines
19 KiB
C
655 lines
19 KiB
C
/*
|
|
* QEMU PC keyboard 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 "vl.h"
|
|
|
|
/* debug PC keyboard */
|
|
//#define DEBUG_KBD
|
|
|
|
/* debug PC keyboard : only mouse */
|
|
//#define DEBUG_MOUSE
|
|
|
|
/* Keyboard Controller Commands */
|
|
#define KBD_CCMD_READ_MODE 0x20 /* Read mode bits */
|
|
#define KBD_CCMD_WRITE_MODE 0x60 /* Write mode bits */
|
|
#define KBD_CCMD_GET_VERSION 0xA1 /* Get controller version */
|
|
#define KBD_CCMD_MOUSE_DISABLE 0xA7 /* Disable mouse interface */
|
|
#define KBD_CCMD_MOUSE_ENABLE 0xA8 /* Enable mouse interface */
|
|
#define KBD_CCMD_TEST_MOUSE 0xA9 /* Mouse interface test */
|
|
#define KBD_CCMD_SELF_TEST 0xAA /* Controller self test */
|
|
#define KBD_CCMD_KBD_TEST 0xAB /* Keyboard interface test */
|
|
#define KBD_CCMD_KBD_DISABLE 0xAD /* Keyboard interface disable */
|
|
#define KBD_CCMD_KBD_ENABLE 0xAE /* Keyboard interface enable */
|
|
#define KBD_CCMD_READ_INPORT 0xC0 /* read input port */
|
|
#define KBD_CCMD_READ_OUTPORT 0xD0 /* read output port */
|
|
#define KBD_CCMD_WRITE_OUTPORT 0xD1 /* write output port */
|
|
#define KBD_CCMD_WRITE_OBUF 0xD2
|
|
#define KBD_CCMD_WRITE_AUX_OBUF 0xD3 /* Write to output buffer as if
|
|
initiated by the auxiliary device */
|
|
#define KBD_CCMD_WRITE_MOUSE 0xD4 /* Write the following byte to the mouse */
|
|
#define KBD_CCMD_DISABLE_A20 0xDD /* HP vectra only ? */
|
|
#define KBD_CCMD_ENABLE_A20 0xDF /* HP vectra only ? */
|
|
#define KBD_CCMD_RESET 0xFE
|
|
|
|
/* Keyboard Commands */
|
|
#define KBD_CMD_SET_LEDS 0xED /* Set keyboard leds */
|
|
#define KBD_CMD_ECHO 0xEE
|
|
#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_ACK 0xFA /* Command ACK */
|
|
#define KBD_REPLY_RESEND 0xFE /* Command NACK, send the cmd again */
|
|
|
|
/* Status Register Bits */
|
|
#define KBD_STAT_OBF 0x01 /* Keyboard output buffer full */
|
|
#define KBD_STAT_IBF 0x02 /* Keyboard input buffer full */
|
|
#define KBD_STAT_SELFTEST 0x04 /* Self test successful */
|
|
#define KBD_STAT_CMD 0x08 /* Last write was a command write (0=data) */
|
|
#define KBD_STAT_UNLOCKED 0x10 /* Zero if keyboard locked */
|
|
#define KBD_STAT_MOUSE_OBF 0x20 /* Mouse output buffer full */
|
|
#define KBD_STAT_GTO 0x40 /* General receive/xmit timeout */
|
|
#define KBD_STAT_PERR 0x80 /* Parity error */
|
|
|
|
/* Controller Mode Register Bits */
|
|
#define KBD_MODE_KBD_INT 0x01 /* Keyboard data generate IRQ1 */
|
|
#define KBD_MODE_MOUSE_INT 0x02 /* Mouse data generate IRQ12 */
|
|
#define KBD_MODE_SYS 0x04 /* The system flag (?) */
|
|
#define KBD_MODE_NO_KEYLOCK 0x08 /* The keylock doesn't affect the keyboard if set */
|
|
#define KBD_MODE_DISABLE_KBD 0x10 /* Disable keyboard interface */
|
|
#define KBD_MODE_DISABLE_MOUSE 0x20 /* Disable mouse interface */
|
|
#define KBD_MODE_KCC 0x40 /* Scan code conversion to PC format */
|
|
#define KBD_MODE_RFU 0x80
|
|
|
|
/* 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 KBD_QUEUE_SIZE 256
|
|
|
|
typedef struct {
|
|
uint8_t data[KBD_QUEUE_SIZE];
|
|
int rptr, wptr, count;
|
|
} KBDQueue;
|
|
|
|
typedef struct KBDState {
|
|
KBDQueue queues[2];
|
|
uint8_t write_cmd; /* if non zero, write data to port 60 is expected */
|
|
uint8_t status;
|
|
uint8_t mode;
|
|
/* keyboard state */
|
|
int kbd_write_cmd;
|
|
int scan_enabled;
|
|
/* mouse state */
|
|
int mouse_write_cmd;
|
|
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;
|
|
} KBDState;
|
|
|
|
KBDState kbd_state;
|
|
int reset_requested;
|
|
|
|
/* update irq and KBD_STAT_[MOUSE_]OBF */
|
|
/* XXX: not generating the irqs if KBD_MODE_DISABLE_KBD is set may be
|
|
incorrect, but it avoids having to simulate exact delays */
|
|
static void kbd_update_irq(KBDState *s)
|
|
{
|
|
int irq12_level, irq1_level;
|
|
|
|
irq1_level = 0;
|
|
irq12_level = 0;
|
|
s->status &= ~(KBD_STAT_OBF | KBD_STAT_MOUSE_OBF);
|
|
if (s->queues[0].count != 0 ||
|
|
s->queues[1].count != 0) {
|
|
s->status |= KBD_STAT_OBF;
|
|
if (s->queues[1].count != 0) {
|
|
s->status |= KBD_STAT_MOUSE_OBF;
|
|
if (s->mode & KBD_MODE_MOUSE_INT)
|
|
irq12_level = 1;
|
|
} else {
|
|
if ((s->mode & KBD_MODE_KBD_INT) &&
|
|
!(s->mode & KBD_MODE_DISABLE_KBD))
|
|
irq1_level = 1;
|
|
}
|
|
}
|
|
pic_set_irq(1, irq1_level);
|
|
pic_set_irq(12, irq12_level);
|
|
}
|
|
|
|
static void kbd_queue(KBDState *s, int b, int aux)
|
|
{
|
|
KBDQueue *q = &s->queues[aux];
|
|
|
|
#if defined(DEBUG_MOUSE) || defined(DEBUG_KBD)
|
|
if (aux)
|
|
printf("mouse event: 0x%02x\n", b);
|
|
#ifdef DEBUG_KBD
|
|
else
|
|
printf("kbd event: 0x%02x\n", b);
|
|
#endif
|
|
#endif
|
|
if (q->count >= KBD_QUEUE_SIZE)
|
|
return;
|
|
q->data[q->wptr] = b;
|
|
if (++q->wptr == KBD_QUEUE_SIZE)
|
|
q->wptr = 0;
|
|
q->count++;
|
|
kbd_update_irq(s);
|
|
}
|
|
|
|
void kbd_put_keycode(int keycode)
|
|
{
|
|
KBDState *s = &kbd_state;
|
|
kbd_queue(s, keycode, 0);
|
|
}
|
|
|
|
static uint32_t kbd_read_status(void *opaque, uint32_t addr)
|
|
{
|
|
KBDState *s = opaque;
|
|
int val;
|
|
val = s->status;
|
|
#if defined(DEBUG_KBD)
|
|
printf("kbd: read status=0x%02x\n", val);
|
|
#endif
|
|
return val;
|
|
}
|
|
|
|
static void kbd_write_command(void *opaque, uint32_t addr, uint32_t val)
|
|
{
|
|
KBDState *s = opaque;
|
|
|
|
#ifdef DEBUG_KBD
|
|
printf("kbd: write cmd=0x%02x\n", val);
|
|
#endif
|
|
switch(val) {
|
|
case KBD_CCMD_READ_MODE:
|
|
kbd_queue(s, s->mode, 0);
|
|
break;
|
|
case KBD_CCMD_WRITE_MODE:
|
|
case KBD_CCMD_WRITE_OBUF:
|
|
case KBD_CCMD_WRITE_AUX_OBUF:
|
|
case KBD_CCMD_WRITE_MOUSE:
|
|
case KBD_CCMD_WRITE_OUTPORT:
|
|
s->write_cmd = val;
|
|
break;
|
|
case KBD_CCMD_MOUSE_DISABLE:
|
|
s->mode |= KBD_MODE_DISABLE_MOUSE;
|
|
break;
|
|
case KBD_CCMD_MOUSE_ENABLE:
|
|
s->mode &= ~KBD_MODE_DISABLE_MOUSE;
|
|
break;
|
|
case KBD_CCMD_TEST_MOUSE:
|
|
kbd_queue(s, 0x00, 0);
|
|
break;
|
|
case KBD_CCMD_SELF_TEST:
|
|
s->status |= KBD_STAT_SELFTEST;
|
|
kbd_queue(s, 0x55, 0);
|
|
break;
|
|
case KBD_CCMD_KBD_TEST:
|
|
kbd_queue(s, 0x00, 0);
|
|
break;
|
|
case KBD_CCMD_KBD_DISABLE:
|
|
s->mode |= KBD_MODE_DISABLE_KBD;
|
|
kbd_update_irq(s);
|
|
break;
|
|
case KBD_CCMD_KBD_ENABLE:
|
|
s->mode &= ~KBD_MODE_DISABLE_KBD;
|
|
kbd_update_irq(s);
|
|
break;
|
|
case KBD_CCMD_READ_INPORT:
|
|
kbd_queue(s, 0x00, 0);
|
|
break;
|
|
case KBD_CCMD_READ_OUTPORT:
|
|
/* XXX: check that */
|
|
#ifdef TARGET_I386
|
|
val = 0x01 | (((cpu_single_env->a20_mask >> 20) & 1) << 1);
|
|
#else
|
|
val = 0x01;
|
|
#endif
|
|
if (s->status & KBD_STAT_OBF)
|
|
val |= 0x10;
|
|
if (s->status & KBD_STAT_MOUSE_OBF)
|
|
val |= 0x20;
|
|
kbd_queue(s, val, 0);
|
|
break;
|
|
#ifdef TARGET_I386
|
|
case KBD_CCMD_ENABLE_A20:
|
|
cpu_x86_set_a20(cpu_single_env, 1);
|
|
break;
|
|
case KBD_CCMD_DISABLE_A20:
|
|
cpu_x86_set_a20(cpu_single_env, 0);
|
|
break;
|
|
#endif
|
|
case KBD_CCMD_RESET:
|
|
reset_requested = 1;
|
|
cpu_interrupt(cpu_single_env, CPU_INTERRUPT_EXIT);
|
|
break;
|
|
case 0xff:
|
|
/* ignore that - I don't know what is its use */
|
|
break;
|
|
default:
|
|
fprintf(stderr, "qemu: unsupported keyboard cmd=0x%02x\n", val);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static uint32_t kbd_read_data(void *opaque, uint32_t addr)
|
|
{
|
|
KBDState *s = opaque;
|
|
KBDQueue *q;
|
|
int val, index;
|
|
|
|
q = &s->queues[1]; /* first check AUX data */
|
|
if (q->count == 0)
|
|
q = &s->queues[0]; /* then check KBD data */
|
|
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 */
|
|
q = &s->queues[0];
|
|
index = q->rptr - 1;
|
|
if (index < 0)
|
|
index = KBD_QUEUE_SIZE - 1;
|
|
val = q->data[index];
|
|
} else {
|
|
val = q->data[q->rptr];
|
|
if (++q->rptr == KBD_QUEUE_SIZE)
|
|
q->rptr = 0;
|
|
q->count--;
|
|
/* reading deasserts IRQ */
|
|
if (q == &s->queues[0])
|
|
pic_set_irq(1, 0);
|
|
else
|
|
pic_set_irq(12, 0);
|
|
}
|
|
/* reassert IRQs if data left */
|
|
kbd_update_irq(s);
|
|
#ifdef DEBUG_KBD
|
|
printf("kbd: read data=0x%02x\n", val);
|
|
#endif
|
|
return val;
|
|
}
|
|
|
|
static void kbd_reset_keyboard(KBDState *s)
|
|
{
|
|
s->scan_enabled = 1;
|
|
}
|
|
|
|
static void kbd_write_keyboard(KBDState *s, int val)
|
|
{
|
|
switch(s->kbd_write_cmd) {
|
|
default:
|
|
case -1:
|
|
switch(val) {
|
|
case 0x00:
|
|
kbd_queue(s, KBD_REPLY_ACK, 0);
|
|
break;
|
|
case 0x05:
|
|
kbd_queue(s, KBD_REPLY_RESEND, 0);
|
|
break;
|
|
case KBD_CMD_GET_ID:
|
|
kbd_queue(s, KBD_REPLY_ACK, 0);
|
|
kbd_queue(s, 0xab, 0);
|
|
kbd_queue(s, 0x83, 0);
|
|
break;
|
|
case KBD_CMD_ECHO:
|
|
kbd_queue(s, KBD_CMD_ECHO, 0);
|
|
break;
|
|
case KBD_CMD_ENABLE:
|
|
s->scan_enabled = 1;
|
|
kbd_queue(s, KBD_REPLY_ACK, 0);
|
|
break;
|
|
case KBD_CMD_SET_LEDS:
|
|
case KBD_CMD_SET_RATE:
|
|
s->kbd_write_cmd = val;
|
|
kbd_queue(s, KBD_REPLY_ACK, 0);
|
|
break;
|
|
case KBD_CMD_RESET_DISABLE:
|
|
kbd_reset_keyboard(s);
|
|
s->scan_enabled = 0;
|
|
kbd_queue(s, KBD_REPLY_ACK, 0);
|
|
break;
|
|
case KBD_CMD_RESET_ENABLE:
|
|
kbd_reset_keyboard(s);
|
|
s->scan_enabled = 1;
|
|
kbd_queue(s, KBD_REPLY_ACK, 0);
|
|
break;
|
|
case KBD_CMD_RESET:
|
|
kbd_reset_keyboard(s);
|
|
kbd_queue(s, KBD_REPLY_ACK, 0);
|
|
kbd_queue(s, KBD_REPLY_POR, 0);
|
|
break;
|
|
default:
|
|
kbd_queue(s, KBD_REPLY_ACK, 0);
|
|
break;
|
|
}
|
|
break;
|
|
case KBD_CMD_SET_LEDS:
|
|
kbd_queue(s, KBD_REPLY_ACK, 0);
|
|
s->kbd_write_cmd = -1;
|
|
break;
|
|
case KBD_CMD_SET_RATE:
|
|
kbd_queue(s, KBD_REPLY_ACK, 0);
|
|
s->kbd_write_cmd = -1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void kbd_mouse_send_packet(KBDState *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);
|
|
kbd_queue(s, b, 1);
|
|
kbd_queue(s, dx1 & 0xff, 1);
|
|
kbd_queue(s, dy1 & 0xff, 1);
|
|
/* 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;
|
|
kbd_queue(s, dz1 & 0xff, 1);
|
|
break;
|
|
case 4:
|
|
if (dz1 > 7)
|
|
dz1 = 7;
|
|
else if (dz1 < -7)
|
|
dz1 = -7;
|
|
b = (dz1 & 0x0f) | ((s->mouse_buttons & 0x18) << 1);
|
|
kbd_queue(s, b, 1);
|
|
break;
|
|
}
|
|
|
|
/* update deltas */
|
|
s->mouse_dx -= dx1;
|
|
s->mouse_dy -= dy1;
|
|
s->mouse_dz -= dz1;
|
|
}
|
|
|
|
void kbd_mouse_event(int dx, int dy, int dz, int buttons_state)
|
|
{
|
|
KBDState *s = &kbd_state;
|
|
|
|
/* 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;
|
|
s->mouse_buttons = buttons_state;
|
|
|
|
if (!(s->mouse_status & MOUSE_STATUS_REMOTE) &&
|
|
(s->queues[1].count < (KBD_QUEUE_SIZE - 16))) {
|
|
for(;;) {
|
|
/* if not remote, send event. Multiple events are sent if
|
|
too big deltas */
|
|
kbd_mouse_send_packet(s);
|
|
if (s->mouse_dx == 0 && s->mouse_dy == 0 && s->mouse_dz == 0)
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void kbd_write_mouse(KBDState *s, int val)
|
|
{
|
|
#ifdef DEBUG_MOUSE
|
|
printf("kbd: write mouse 0x%02x\n", val);
|
|
#endif
|
|
switch(s->mouse_write_cmd) {
|
|
default:
|
|
case -1:
|
|
/* mouse command */
|
|
if (s->mouse_wrap) {
|
|
if (val == AUX_RESET_WRAP) {
|
|
s->mouse_wrap = 0;
|
|
kbd_queue(s, AUX_ACK, 1);
|
|
return;
|
|
} else if (val != AUX_RESET) {
|
|
kbd_queue(s, val, 1);
|
|
return;
|
|
}
|
|
}
|
|
switch(val) {
|
|
case AUX_SET_SCALE11:
|
|
s->mouse_status &= ~MOUSE_STATUS_SCALE21;
|
|
kbd_queue(s, AUX_ACK, 1);
|
|
break;
|
|
case AUX_SET_SCALE21:
|
|
s->mouse_status |= MOUSE_STATUS_SCALE21;
|
|
kbd_queue(s, AUX_ACK, 1);
|
|
break;
|
|
case AUX_SET_STREAM:
|
|
s->mouse_status &= ~MOUSE_STATUS_REMOTE;
|
|
kbd_queue(s, AUX_ACK, 1);
|
|
break;
|
|
case AUX_SET_WRAP:
|
|
s->mouse_wrap = 1;
|
|
kbd_queue(s, AUX_ACK, 1);
|
|
break;
|
|
case AUX_SET_REMOTE:
|
|
s->mouse_status |= MOUSE_STATUS_REMOTE;
|
|
kbd_queue(s, AUX_ACK, 1);
|
|
break;
|
|
case AUX_GET_TYPE:
|
|
kbd_queue(s, AUX_ACK, 1);
|
|
kbd_queue(s, s->mouse_type, 1);
|
|
break;
|
|
case AUX_SET_RES:
|
|
case AUX_SET_SAMPLE:
|
|
s->mouse_write_cmd = val;
|
|
kbd_queue(s, AUX_ACK, 1);
|
|
break;
|
|
case AUX_GET_SCALE:
|
|
kbd_queue(s, AUX_ACK, 1);
|
|
kbd_queue(s, s->mouse_status, 1);
|
|
kbd_queue(s, s->mouse_resolution, 1);
|
|
kbd_queue(s, s->mouse_sample_rate, 1);
|
|
break;
|
|
case AUX_POLL:
|
|
kbd_queue(s, AUX_ACK, 1);
|
|
kbd_mouse_send_packet(s);
|
|
break;
|
|
case AUX_ENABLE_DEV:
|
|
s->mouse_status |= MOUSE_STATUS_ENABLED;
|
|
kbd_queue(s, AUX_ACK, 1);
|
|
break;
|
|
case AUX_DISABLE_DEV:
|
|
s->mouse_status &= ~MOUSE_STATUS_ENABLED;
|
|
kbd_queue(s, AUX_ACK, 1);
|
|
break;
|
|
case AUX_SET_DEFAULT:
|
|
s->mouse_sample_rate = 100;
|
|
s->mouse_resolution = 2;
|
|
s->mouse_status = 0;
|
|
kbd_queue(s, AUX_ACK, 1);
|
|
break;
|
|
case AUX_RESET:
|
|
s->mouse_sample_rate = 100;
|
|
s->mouse_resolution = 2;
|
|
s->mouse_status = 0;
|
|
kbd_queue(s, AUX_ACK, 1);
|
|
kbd_queue(s, 0xaa, 1);
|
|
kbd_queue(s, s->mouse_type, 1);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
case AUX_SET_SAMPLE:
|
|
s->mouse_sample_rate = val;
|
|
#if 0
|
|
/* 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;
|
|
}
|
|
#endif
|
|
kbd_queue(s, AUX_ACK, 1);
|
|
s->mouse_write_cmd = -1;
|
|
break;
|
|
case AUX_SET_RES:
|
|
s->mouse_resolution = val;
|
|
kbd_queue(s, AUX_ACK, 1);
|
|
s->mouse_write_cmd = -1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
void kbd_write_data(void *opaque, uint32_t addr, uint32_t val)
|
|
{
|
|
KBDState *s = opaque;
|
|
|
|
#ifdef DEBUG_KBD
|
|
printf("kbd: write data=0x%02x\n", val);
|
|
#endif
|
|
|
|
switch(s->write_cmd) {
|
|
case 0:
|
|
kbd_write_keyboard(s, val);
|
|
break;
|
|
case KBD_CCMD_WRITE_MODE:
|
|
s->mode = val;
|
|
kbd_update_irq(s);
|
|
break;
|
|
case KBD_CCMD_WRITE_OBUF:
|
|
kbd_queue(s, val, 0);
|
|
break;
|
|
case KBD_CCMD_WRITE_AUX_OBUF:
|
|
kbd_queue(s, val, 1);
|
|
break;
|
|
case KBD_CCMD_WRITE_OUTPORT:
|
|
#ifdef TARGET_I386
|
|
cpu_x86_set_a20(cpu_single_env, (val >> 1) & 1);
|
|
#endif
|
|
if (!(val & 1)) {
|
|
reset_requested = 1;
|
|
cpu_interrupt(cpu_single_env, CPU_INTERRUPT_EXIT);
|
|
}
|
|
break;
|
|
case KBD_CCMD_WRITE_MOUSE:
|
|
kbd_write_mouse(s, val);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
s->write_cmd = 0;
|
|
}
|
|
|
|
void kbd_reset(KBDState *s)
|
|
{
|
|
KBDQueue *q;
|
|
int i;
|
|
|
|
s->kbd_write_cmd = -1;
|
|
s->mouse_write_cmd = -1;
|
|
s->mode = KBD_MODE_KBD_INT | KBD_MODE_MOUSE_INT;
|
|
s->status = KBD_STAT_CMD | KBD_STAT_UNLOCKED;
|
|
for(i = 0; i < 2; i++) {
|
|
q = &s->queues[i];
|
|
q->rptr = 0;
|
|
q->wptr = 0;
|
|
q->count = 0;
|
|
}
|
|
}
|
|
|
|
void kbd_init(void)
|
|
{
|
|
KBDState *s = &kbd_state;
|
|
|
|
kbd_reset(s);
|
|
register_ioport_read(0x60, 1, 1, kbd_read_data, s);
|
|
register_ioport_write(0x60, 1, 1, kbd_write_data, s);
|
|
register_ioport_read(0x64, 1, 1, kbd_read_status, s);
|
|
register_ioport_write(0x64, 1, 1, kbd_write_command, s);
|
|
}
|