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Fixed input port intialization, fixes the logo on the Epson Action PC.

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OBattler
2023-04-08 01:42:09 +02:00
parent 289962319f
commit c786eb0924
1 changed files with 3 additions and 22 deletions
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25
src/device/keyboard_at.c
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@@ -2287,7 +2287,9 @@ kbc_process_cmd(void *priv)
} else {
if (dev->kbc_state != KBC_STATE_RESET) {
kbd_log("ATkbc: self-test reinitialization\n");
dev->input_port |= 0xff;
/* Yes, the firmware has an OR, but we need to make sure to keep any forcibly lowered bytes lowered. */
/* TODO: Proper P1 implementation, with OR and AND flags in the machine table. */
dev->input_port = dev->input_port & 0xff;
write_output(dev, 0xcf);
}
@@ -2309,27 +2311,6 @@ kbc_process_cmd(void *priv)
dev->kbc_state = KBC_STATE_NORMAL;
add_to_kbc_queue_front(dev, 0x55, 0, 0x00);
#if 0
write_output(dev, ((dev->flags & KBC_TYPE_MASK) >= KBC_TYPE_PS2_NOREF) ? 0x4b : 0xcf);
/* Always reinitialize all queues - the real hardware pulls keyboard and mouse
clocks high, which stops keyboard scanning. */
kbd_log("ATkbc: self-test reinitialization\n");
dev->out_new = dev->out_new_mouse = -1;
for (i = 0; i < 3; i++)
kbc_queue_reset(i);
keyboard_scan = 0;
mouse_scan = 0;
kbd_last_scan_code = 0x00;
dev->status &= ~STAT_OFULL;
if ((dev->flags & KBC_TYPE_MASK) >= KBC_TYPE_PS2_NOREF)
write_cmd(dev, 0x30 | STAT_SYSFLAG);
else
write_cmd(dev, 0x10 | STAT_SYSFLAG);
add_to_kbc_queue_front(dev, 0x55, 0, 0x00);
#endif
break;
case 0xab: /* interface test */