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authortmk <nobody@nowhere>2012-10-21 22:12:36 +0900
committertmk <nobody@nowhere>2012-10-21 22:12:36 +0900
commitedce1d19a6af040df994243e7b6b1851e3eccebc (patch)
tree3f8d385a39979dcabdefea019e9671503cda8eba
parent454f7bc71657020d0574e849dad92a14e71230c4 (diff)
Add LED feature to Sun converter
-rw-r--r--common/keyboard.c7
-rw-r--r--converter/sun_usb/config.h17
-rw-r--r--converter/sun_usb/led.c10
-rw-r--r--protocol/serial.h1
-rw-r--r--protocol/serial_soft.c57
5 files changed, 74 insertions, 18 deletions
diff --git a/common/keyboard.c b/common/keyboard.c
index e973c46d5b..b0e0ed7935 100644
--- a/common/keyboard.c
+++ b/common/keyboard.c
@@ -555,6 +555,7 @@ void keyboard_init(void)
void keyboard_task(void)
{
static matrix_row_t matrix_prev[MATRIX_ROWS];
+ static uint8_t led_status = 0;
matrix_row_t matrix_row = 0;
matrix_row_t matrix_change = 0;
@@ -617,6 +618,12 @@ void keyboard_task(void)
}
}
+ // update LED
+ if (led_status != host_keyboard_leds()) {
+ led_status = host_keyboard_leds();
+ keyboard_set_leds(led_status);
+ }
+
return;
}
diff --git a/converter/sun_usb/config.h b/converter/sun_usb/config.h
index 66961d9330..b4f0ff977a 100644
--- a/converter/sun_usb/config.h
+++ b/converter/sun_usb/config.h
@@ -43,8 +43,8 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
* asynchronous, negative logic, 1200baud, no flow control
* 1-start bit, 8-data bit, non parity, 1-stop bit
*/
-#define SERIAL_NEGATIVE_LOGIC
#define SERIAL_BAUD 1200
+
#define SERIAL_RXD_DDR DDRD
#define SERIAL_RXD_PORT PORTD
#define SERIAL_RXD_PIN PIND
@@ -63,5 +63,20 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
/* clear interrupt flag */ \
EIFR = (1<<INTF2); \
} while (0)
+#define SERIAL_RXD_READ() (~SERIAL_RXD_PIN&(1<<SERIAL_RXD_BIT))
+
+#define SERIAL_TXD_DDR DDRD
+#define SERIAL_TXD_PORT PORTD
+#define SERIAL_TXD_PIN PIND
+#define SERIAL_TXD_BIT 3
+/* negative logic */
+#define SERIAL_TXD_ON() do { SERIAL_TXD_PORT &= ~(1<<SERIAL_TXD_BIT); } while (0)
+#define SERIAL_TXD_OFF() do { SERIAL_TXD_PORT |= (1<<SERIAL_TXD_BIT); } while (0)
+#define SERIAL_TXD_INIT() do { \
+ /* pin configuration: output */ \
+ SERIAL_TXD_DDR |= (1<<SERIAL_TXD_BIT); \
+ /* idle */ \
+ SERIAL_TXD_ON(); \
+} while (0)
#endif
diff --git a/converter/sun_usb/led.c b/converter/sun_usb/led.c
index 5490ec0c62..48c3f1c2b2 100644
--- a/converter/sun_usb/led.c
+++ b/converter/sun_usb/led.c
@@ -16,10 +16,18 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "stdint.h"
+#include "serial.h"
#include "led.h"
void led_set(uint8_t usb_led)
{
- // not supported now
+ uint8_t sun_led = 0;
+ if (usb_led & (1<<USB_LED_NUM_LOCK)) sun_led |= (1<<0);
+ if (usb_led & (1<<USB_LED_COMPOSE)) sun_led |= (1<<1);
+ if (usb_led & (1<<USB_LED_SCROLL_LOCK)) sun_led |= (1<<2);
+ if (usb_led & (1<<USB_LED_CAPS_LOCK)) sun_led |= (1<<3);
+
+ serial_send(0x0E);
+ serial_send(sun_led);
}
diff --git a/protocol/serial.h b/protocol/serial.h
index 93b9ee9225..bd071bec92 100644
--- a/protocol/serial.h
+++ b/protocol/serial.h
@@ -41,5 +41,6 @@ POSSIBILITY OF SUCH DAMAGE.
/* host role */
void serial_init(void);
uint8_t serial_recv(void);
+void serial_send(uint8_t data);
#endif
diff --git a/protocol/serial_soft.c b/protocol/serial_soft.c
index b7d06b644e..beddc353c0 100644
--- a/protocol/serial_soft.c
+++ b/protocol/serial_soft.c
@@ -51,9 +51,10 @@ POSSIBILITY OF SUCH DAMAGE.
void serial_init(void)
{
SERIAL_RXD_INIT();
+ SERIAL_TXD_INIT();
}
-// RX ring buffer
+/* RX ring buffer */
#define RBUF_SIZE 8
static uint8_t rbuf[RBUF_SIZE];
static uint8_t rbuf_head = 0;
@@ -71,39 +72,63 @@ uint8_t serial_recv(void)
return data;
}
-//ISR(INT2_vect)
+void serial_send(uint8_t data)
+{
+ /* signal state: IDLE: ON, START: OFF, STOP: ON, DATA0: OFF, DATA1: ON */
+ /* start bit */
+ SERIAL_TXD_OFF();
+ _delay_us(WAIT_US);
+
+#ifdef SERIAL_BIT_ORDER_MSB
+ uint8_t mask = 0x80;
+#else
+ uint8_t mask = 0x01;
+#endif
+ while (mask) {
+ if (data&mask) { SERIAL_TXD_ON(); } else { SERIAL_TXD_OFF(); }
+ _delay_us(WAIT_US);
+
+#ifdef SERIAL_BIT_ORDER_MSB
+ mask >>= 1;
+#else
+ mask <<= 1;
+#endif
+ }
+
+ /* stop bit */
+ SERIAL_TXD_ON();
+ _delay_us(WAIT_US);
+}
+
+/* detect edge of start bit */
ISR(SERIAL_RXD_VECT)
{
SERIAL_RXD_INT_ENTER()
uint8_t data = 0;
#ifdef SERIAL_BIT_ORDER_MSB
- uint8_t pos = 0x80;
+ uint8_t mask = 0x80;
#else
- uint8_t pos = 0x01;
+ uint8_t mask = 0x01;
#endif
- // to center of start bit
+ /* to center of start bit */
_delay_us(WAIT_US/2);
do {
- // to center of next bit
+ /* to center of next bit */
_delay_us(WAIT_US);
- if (SERIAL_RXD_PIN&(1<<SERIAL_RXD_BIT)) {
- data |= pos;
+ if (SERIAL_RXD_READ()) {
+ data |= mask;
}
#ifdef SERIAL_BIT_ORDER_MSB
- pos >>= 1;
+ mask >>= 1;
#else
- pos <<= 1;
+ mask <<= 1;
#endif
- } while (pos);
- // to center of stop bit
+ } while (mask);
+ /* to center of stop bit */
_delay_us(WAIT_US);
-#ifdef SERIAL_NEGATIVE_LOGIC
- data = ~data;
-#endif
-
uint8_t next = (rbuf_head + 1) % RBUF_SIZE;
if (next != rbuf_tail) {
rbuf[rbuf_head] = data;