2 files changed, 25 insertions, 2 deletions
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);
 }