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pc98_usb: Fix RDY line and startup for PC-9801V

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This commit is contained in:
tmk 2018-10-15 21:37:52 +09:00
parent 594d7d85da
commit fddc6a7b47
3 changed files with 24 additions and 11 deletions
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18
converter/pc98_usb/matrix.c
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@ -71,12 +71,12 @@ static void pc98_inhibit_repeat(void)
RETRY:
pc98_send(0x9C);
code = pc98_wait_response();
if (code != -1) xprintf("PC98: send 9C: %02X\n", code);
if (code != 0xFA) goto RETRY;
if (code != -1) xprintf("send 9C: %02X\n", code);
if (code != 0xFA) return;
pc98_send(0x70);
code = pc98_wait_response();
if (code != -1) xprintf("PC98: send 70: %02X\n", code);
if (code != -1) xprintf("send 70: %02X\n", code);
if (code != 0xFA) goto RETRY;
}
@ -87,12 +87,12 @@ static void pc98_led_set(void)
RETRY:
pc98_send(0x9D);
code = pc98_wait_response();
if (code != -1) xprintf("PC98: send 9D: %02X\n", code);
if (code != 0xFA) goto RETRY;
if (code != -1) xprintf("send 9D: %02X\n", code);
if (code != 0xFA) return;
pc98_send(pc98_led);
code = pc98_wait_response();
if (code != -1) xprintf("PC98: send %02X: %02X\n", pc98_led, code);
if (code != -1) xprintf("send %02X: %02X\n", pc98_led, code);
if (code != 0xFA) goto RETRY;
}
@ -158,6 +158,12 @@ uint8_t matrix_scan(void)
matrix[ROW(code)] |= (1<<COL(code));
}
}
// PC-9801V keyboard requires RDY pulse.
// This is not optimal place though, it works.
PC98_RDY_PORT |= (1<<PC98_RDY_BIT); // RDY: high
_delay_us(20);
PC98_RDY_PORT &= ~(1<<PC98_RDY_BIT); // RDY: low
return code;
}