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authortmk <nobody@nowhere>2014-06-19 16:13:35 +0900
committertmk <nobody@nowhere>2014-07-30 14:07:43 +0900
commit4c8e0fd0bd1712421f957ec5e0ca16fc6bbb3856 (patch)
tree2141d2e168ad043ea18bcb3aee3f3a03dd2a2f1b /protocol/ps2_busywait.c
parent80c3ff5fa03429f1e4ea15032f665ceb88c9b8c3 (diff)
Port ps2_usb to mbed
Diffstat (limited to 'protocol/ps2_busywait.c')
-rw-r--r--protocol/ps2_busywait.c16
1 files changed, 10 insertions, 6 deletions
diff --git a/protocol/ps2_busywait.c b/protocol/ps2_busywait.c
index 05dd7b27e6..a64933219e 100644
--- a/protocol/ps2_busywait.c
+++ b/protocol/ps2_busywait.c
@@ -40,8 +40,9 @@ POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdbool.h>
-#include <util/delay.h>
+#include "wait.h"
#include "ps2.h"
+#include "ps2_io.h"
#include "debug.h"
@@ -58,8 +59,11 @@ uint8_t ps2_error = PS2_ERR_NONE;
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();
}
@@ -71,7 +75,7 @@ uint8_t ps2_host_send(uint8_t data)
/* 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();
@@ -80,7 +84,7 @@ uint8_t ps2_host_send(uint8_t data)
/* Data bit */
for (uint8_t i = 0; i < 8; i++) {
- _delay_us(15);
+ wait_us(15);
if (data&(1<<i)) {
parity = !parity;
data_hi();
@@ -92,13 +96,13 @@ uint8_t ps2_host_send(uint8_t data)
}
/* 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 */