*/
#include <stdbool.h>
-#include <util/delay.h>
+#include "wait.h"
#include "ps2.h"
+#include "ps2_io.h"
#include "debug.h"
void ps2_host_init(void)
{
+ clock_init();
+ data_init();
+
// POR(150-2000ms) plus BAT(300-500ms) may take 2.5sec([3]p.20)
- _delay_ms(2500);
+ wait_ms(2500);
inhibit();
}
/* terminate a transmission if we have */
inhibit();
- _delay_us(100); // 100us [4]p.13, [5]p.50
+ wait_us(100); // 100us [4]p.13, [5]p.50
/* 'Request to Send' and Start bit */
data_lo();
/* Data bit */
for (uint8_t i = 0; i < 8; i++) {
- _delay_us(15);
+ wait_us(15);
if (data&(1<<i)) {
parity = !parity;
data_hi();
}
/* Parity bit */
- _delay_us(15);
+ wait_us(15);
if (parity) { data_hi(); } else { data_lo(); }
WAIT(clock_hi, 50, 4);
WAIT(clock_lo, 50, 5);
/* Stop bit */
- _delay_us(15);
+ wait_us(15);
data_hi();
/* Ack */