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More keyboard controller improvements - fixes IBM AT boot, CTRL and ALT getting stuck on pressing CTRL+ALT+ESC on Acer BIOS'es, Norton Commander behaving strangely after pressing ALT+Print Screen, and also moved PS/2 mouse command responses to their own queue to simulate the fact that on real hardware, PS/2 mouse commands, like keyboard commands, bypass the FIFO.

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This commit is contained in:
OBattler
2023-04-02 04:17:33 +02:00
parent 21d31bb839
commit aab8eb809d
3 changed files with 504 additions and 522 deletions
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958
src/device/keyboard_at.c
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File diff suppressed because it is too large Load Diff

67
src/device/mouse_ps2.c
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@@ -82,7 +82,7 @@ mouse_clear_data(void *priv)
}
static void
ps2_report_coordinates(mouse_t *dev)
ps2_report_coordinates(mouse_t *dev, int cmd)
{
uint8_t buff[3] = { 0x08, 0x00, 0x00 };
@@ -114,9 +114,15 @@ ps2_report_coordinates(mouse_t *dev)
buff[1] = (dev->x & 0xff);
buff[2] = (dev->y & 0xff);
keyboard_at_adddata_mouse(buff[0]);
keyboard_at_adddata_mouse(buff[1]);
keyboard_at_adddata_mouse(buff[2]);
if (cmd) {
keyboard_at_adddata_mouse_cmd(buff[0]);
keyboard_at_adddata_mouse_cmd(buff[1]);
keyboard_at_adddata_mouse_cmd(buff[2]);
} else {
keyboard_at_adddata_mouse(buff[0]);
keyboard_at_adddata_mouse(buff[1]);
keyboard_at_adddata_mouse(buff[2]);
}
if (dev->flags & FLAG_INTMODE) {
int temp_z = dev->z;
if ((dev->flags & FLAG_5BTN)) {
@@ -126,7 +132,10 @@ ps2_report_coordinates(mouse_t *dev)
if (mouse_buttons & 16)
temp_z |= 0x20;
}
keyboard_at_adddata_mouse(temp_z);
if (cmd)
keyboard_at_adddata_mouse_cmd(temp_z);
else
keyboard_at_adddata_mouse(temp_z);
}
dev->x = dev->y = dev->z = 0;
@@ -147,16 +156,16 @@ ps2_write(uint8_t val, void *priv)
switch (dev->command) {
case 0xe8: /* set mouse resolution */
dev->resolution = val;
keyboard_at_adddata_mouse(0xfa);
keyboard_at_adddata_mouse_cmd(0xfa);
break;
case 0xf3: /* set sample rate */
dev->sample_rate = val;
keyboard_at_adddata_mouse(0xfa); /* Command response */
keyboard_at_adddata_mouse_cmd(0xfa); /* Command response */
break;
default:
keyboard_at_adddata_mouse(0xfc);
keyboard_at_adddata_mouse_cmd(0xfc);
}
} else {
dev->command = val;
@@ -164,21 +173,21 @@ ps2_write(uint8_t val, void *priv)
switch (dev->command) {
case 0xe6: /* set scaling to 1:1 */
dev->flags &= ~FLAG_SCALED;
keyboard_at_adddata_mouse(0xfa);
keyboard_at_adddata_mouse_cmd(0xfa);
break;
case 0xe7: /* set scaling to 2:1 */
dev->flags |= FLAG_SCALED;
keyboard_at_adddata_mouse(0xfa);
keyboard_at_adddata_mouse_cmd(0xfa);
break;
case 0xe8: /* set mouse resolution */
dev->flags |= FLAG_CTRLDAT;
keyboard_at_adddata_mouse(0xfa);
keyboard_at_adddata_mouse_cmd(0xfa);
break;
case 0xe9: /* status request */
keyboard_at_adddata_mouse(0xfa);
keyboard_at_adddata_mouse_cmd(0xfa);
temp = (dev->flags & 0x30);
if (mouse_buttons & 1)
temp |= 4;
@@ -186,46 +195,46 @@ ps2_write(uint8_t val, void *priv)
temp |= 1;
if ((mouse_buttons & 4) && (dev->flags & FLAG_INTELLI))
temp |= 2;
keyboard_at_adddata_mouse(temp);
keyboard_at_adddata_mouse(dev->resolution);
keyboard_at_adddata_mouse(dev->sample_rate);
keyboard_at_adddata_mouse_cmd(temp);
keyboard_at_adddata_mouse_cmd(dev->resolution);
keyboard_at_adddata_mouse_cmd(dev->sample_rate);
break;
case 0xea: /* set stream */
dev->flags &= ~FLAG_CTRLDAT;
mouse_scan = 1;
keyboard_at_adddata_mouse(0xfa); /* ACK for command byte */
keyboard_at_adddata_mouse_cmd(0xfa); /* ACK for command byte */
break;
case 0xeb: /* Get mouse data */
keyboard_at_adddata_mouse(0xfa);
keyboard_at_adddata_mouse_cmd(0xfa);
ps2_report_coordinates(dev);
ps2_report_coordinates(dev, 1);
break;
case 0xf2: /* read ID */
keyboard_at_adddata_mouse(0xfa);
keyboard_at_adddata_mouse_cmd(0xfa);
if (dev->flags & FLAG_INTMODE)
keyboard_at_adddata_mouse((dev->flags & FLAG_5BTN) ? 0x04 : 0x03);
keyboard_at_adddata_mouse_cmd((dev->flags & FLAG_5BTN) ? 0x04 : 0x03);
else
keyboard_at_adddata_mouse(0x00);
keyboard_at_adddata_mouse_cmd(0x00);
break;
case 0xf3: /* set command mode */
dev->flags |= FLAG_CTRLDAT;
keyboard_at_adddata_mouse(0xfa); /* ACK for command byte */
keyboard_at_adddata_mouse_cmd(0xfa); /* ACK for command byte */
break;
case 0xf4: /* enable */
dev->flags |= FLAG_ENABLED;
mouse_scan = 1;
keyboard_at_adddata_mouse(0xfa);
keyboard_at_adddata_mouse_cmd(0xfa);
break;
case 0xf5: /* disable */
dev->flags &= ~FLAG_ENABLED;
mouse_scan = 0;
keyboard_at_adddata_mouse(0xfa);
keyboard_at_adddata_mouse_cmd(0xfa);
break;
case 0xf6: /* set defaults */
@@ -235,15 +244,15 @@ mouse_reset:
dev->flags &= 0x88;
mouse_scan = 1;
keyboard_at_mouse_reset();
keyboard_at_adddata_mouse(0xfa);
keyboard_at_adddata_mouse_cmd(0xfa);
if (dev->command == 0xff) {
keyboard_at_adddata_mouse(0xaa);
keyboard_at_adddata_mouse(0x00);
keyboard_at_adddata_mouse_cmd(0xaa);
keyboard_at_adddata_mouse_cmd(0x00);
}
break;
default:
keyboard_at_adddata_mouse(0xfe);
keyboard_at_adddata_mouse_cmd(0xfe);
}
}
@@ -288,7 +297,7 @@ ps2_poll(int x, int y, int z, int b, double abs_x, double abs_y, void *priv)
if ((dev->mode == MODE_STREAM) && (dev->flags & FLAG_ENABLED) && (keyboard_at_mouse_pos() < 13)) {
dev->b = b;
ps2_report_coordinates(dev);
ps2_report_coordinates(dev, 0);
}
return (0);

1
src/include/86box/keyboard.h
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@@ -139,6 +139,7 @@ extern uint8_t keyboard_set3_flags[512];
extern uint8_t keyboard_set3_all_repeat;
extern uint8_t keyboard_set3_all_break;
extern int mouse_queue_start, mouse_queue_end;
extern int mouse_cmd_queue_start, mouse_cmd_queue_end;
extern int mouse_scan;
#ifdef EMU_DEVICE_H