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Fix ibm4704 protocol with using interrupt

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This commit is contained in:
tmk 2014-10-27 21:39:02 +09:00 • committed by Jun Wako
parent 5ea50bfb30
commit d42aa47809
4 changed files with 152 additions and 85 deletions
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41
converter/ibm4704_usb/matrix.c
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@ -69,41 +69,34 @@ static void enable_break(void)
{
uint8_t ret;
print("Enable break: ");
// valid scancode: 00-77h
for (uint8_t code = 0; code < 0x78; code++) {
while (ibm4704_send(0x80|code) != 0) {
print("z");
_delay_us(500);
}
_delay_us(2000);
ret = ibm4704_recv();
if (ret != 0xff) {
// valid scancode: 00-79h
for (uint8_t code = 0; code < 0x7A; code++) {
while (ibm4704_send(0x80|code)) _delay_ms(1);
// get none when ok, get FD when out of bound
_delay_ms(5);
if ((ret = ibm4704_recv()) != 0xff) {
xprintf("c%02X:r%02X ", code, ret);
}
_delay_us(1000);
_delay_ms(1);
}
_delay_us(1000);
while (ibm4704_send(0xFF) != 0) { _delay_us(500); } // End
while (ibm4704_send(0xFF)) { _delay_ms(1); } // End
print("End\n");
}
void matrix_init(void)
{
uint8_t ret;
debug_enable = true;
debug_enable = false;
ibm4704_init();
matrix_clear();
// read keyboard id
while ((ret = ibm4704_recv()) == 0xFF) {
ibm4704_send(0xFE);
_delay_us(100);
}
_delay_ms(2000); // wait for starting up debug console
_delay_ms(2000); // wait for starting up debug console
print("IBM 4704 converter\n");
xprintf("Keyboard ID: %02X\n", ret);
while (ibm4704_send(0xFE)) _delay_ms(1); // resend
_delay_ms(5);
xprintf("Keyboard ID: %02X\n", ibm4704_recv());
enable_break();
}
@ -116,14 +109,16 @@ uint8_t matrix_scan(void)
if (code==0xFF) {
// Not receivd
return 0;
} else if ((code&0x78)==0x78) {
// 0xFF-F8 and 0x7F-78 is not scancode
xprintf("Error: %0X\n", code);
} else if ((code&0x7F) >= 0x7A) {
// 0xFF-FA and 0x7F-7A is not scancode
xprintf("Error: %02X\n", code);
matrix_clear();
return 0;
} else if (code&0x80) {
dprintf("%02X\n", code);
matrix_make(code);
} else {
dprintf("%02X\n", code);
matrix_break(code);
}
return 1;