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AT KBC: some fixes.

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This commit is contained in:
OBattler
2025-05-14 10:15:14 +02:00
parent 0157520b76
commit e8c8d3373e
1 changed files with 37 additions and 0 deletions
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37
src/device/kbc_at.c
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@@ -2149,6 +2149,12 @@ kbc_at_write(uint16_t port, uint8_t val, void *priv)
dev->wantdata = 0;
dev->state = STATE_MAIN_IBF;
/*
Explicitly clear IBF so that any preceding
command is not executed.
*/
dev->status &= ~STAT_IFULL;
return;
}
break;
@@ -2160,11 +2166,36 @@ kbc_at_write(uint16_t port, uint8_t val, void *priv)
dev->wantdata = 1;
dev->state = STATE_KBC_PARAM;
dev->command = 0xd1;
/*
Explicitly clear IBF so that any preceding
command is not executed.
*/
dev->status &= ~STAT_IFULL;
return;
} else if (fast_reset && ((val & 0xf0) == 0xf0)) {
pulse_output(dev, val & 0x0f);
dev->state = STATE_MAIN_IBF;
/*
Explicitly clear IBF so that any preceding
command is not executed.
*/
dev->status &= ~STAT_IFULL;
return;
} else if (val == 0xad) {
/* Fast track it because of the Bochs BIOS. */
kbc_at_log("ATkbc: disable keyboard\n");
set_enable_kbd(dev, 0);
dev->state = STATE_MAIN_IBF;
/*
Explicitly clear IBF so that any preceding
command is not executed.
*/
dev->status &= ~STAT_IFULL;
return;
} else if (val == 0xae) {
/* Fast track it because of the LG MultiNet. */
@@ -2172,6 +2203,12 @@ kbc_at_write(uint16_t port, uint8_t val, void *priv)
set_enable_kbd(dev, 1);
dev->state = STATE_MAIN_IBF;
/*
Explicitly clear IBF so that any preceding
command is not executed.
*/
dev->status &= ~STAT_IFULL;
return;
}
break;