From 49b0c7e5ef1683f001c4c9e1c7516da8c5fe592e Mon Sep 17 00:00:00 2001
From: tmk <hasu@tmk-kbd.com>
Date: Wed, 3 Jun 2015 00:03:08 +0900
Subject: [PATCH] sun_usb: Fix LED status update at startup

---
 converter/sun_usb/led.c    |  2 ++
 converter/sun_usb/matrix.c | 15 +++++++++++++++
 2 files changed, 17 insertions(+)

diff --git a/converter/sun_usb/led.c b/converter/sun_usb/led.c
index 48c3f1c2..809398fa 100644
--- a/converter/sun_usb/led.c
+++ b/converter/sun_usb/led.c
@@ -18,6 +18,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "stdint.h"
 #include "serial.h"
 #include "led.h"
+#include "debug.h"
 
 
 void led_set(uint8_t usb_led)
@@ -27,6 +28,7 @@ void led_set(uint8_t usb_led)
     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);
+    xprintf("LED: %02X\n", usb_led);
 
     serial_send(0x0E);
     serial_send(sun_led);
diff --git a/converter/sun_usb/matrix.c b/converter/sun_usb/matrix.c
index f333f542..71c818f5 100644
--- a/converter/sun_usb/matrix.c
+++ b/converter/sun_usb/matrix.c
@@ -72,6 +72,21 @@ void matrix_init(void)
     // initialize matrix state: all keys off
     for (uint8_t i=0; i < MATRIX_ROWS; i++) matrix[i] = 0x00;
 
+    // wait for keyboard coming up
+    // otherwise LED status update fails
+    print("Reseting ");
+    while (1) {
+        print(".");
+        while (serial_recv());
+        serial_send(0x01);
+        _delay_ms(500);
+        if (serial_recv() == 0xFF) {
+            _delay_ms(500);
+            if (serial_recv() == 0x04)
+                break;
+        }
+    }
+    print(" Done\n");
     return;
 }
 
-- 
2.39.3