add conn_handle to BLEHidAdafruit KeyboardLedCallback signature

Author: hathach

libraries/Bluefruit52Lib/examples/Peripheral/hid_keyboard/hid_keyboard.ino

@@ -132,8 +132,10 @@ void loop()
  * The LED bit map is as follows: (also defined by KEYBOARD_LED_* )
  *    Kana (4) | Compose (3) | ScrollLock (2) | CapsLock (1) | Numlock (0)
  */
-void set_keyboard_led(uint8_t led_bitmap)
+void set_keyboard_led(uint16_t conn_handle, uint8_t led_bitmap)
 {
+  (void) conn_handle;
+  
   // light up Red Led if any bits is set
   if ( led_bitmap )
   {

libraries/Bluefruit52Lib/examples/Peripheral/hid_keyscan/hid_keyscan.ino

@@ -180,8 +180,10 @@ void loop()
  * The LED bit map is as follows: (also defined by KEYBOARD_LED_* )
  *    Kana (4) | Compose (3) | ScrollLock (2) | CapsLock (1) | Numlock (0)
  */
-void set_keyboard_led(uint8_t led_bitmap)
+void set_keyboard_led(uint16_t conn_handle, uint8_t led_bitmap)
 {
+  (void) conn_handle;
+  
   // light up Red Led if any bits is set
   if ( led_bitmap )
   {

libraries/Bluefruit52Lib/src/services/BLEHidAdafruit.cpp

@@ -222,15 +222,12 @@ err_t BLEHidAdafruit::begin(void)
 /* Keyboard
  *------------------------------------------------------------------*/
 
-void blehid_ada_keyboard_output_cb(uint16_t conn_hdl, BLECharacteristic* chr, uint8_t* data, uint16_t len)
+void BLEHidAdafruit::blehid_ada_keyboard_output_cb(uint16_t conn_hdl, BLECharacteristic* chr, uint8_t* data, uint16_t len)
 {
-  (void) conn_hdl;
-
   LOG_LV2("HID", "Keyboard LED : 0x%02X", data[0]);
-  VERIFY(len == 1, );
 
   BLEHidAdafruit& svc = (BLEHidAdafruit&) chr->parentService();
-  if ( svc._kbd_led_cb ) svc._kbd_led_cb(data[0]);
+  if ( svc._kbd_led_cb ) svc._kbd_led_cb(conn_hdl, data[0]);
 }
 
 void BLEHidAdafruit::setKeyboardLedCallback(kbd_led_cb_t fp)

libraries/Bluefruit52Lib/src/services/BLEHidAdafruit.h

@@ -47,7 +47,7 @@ class BLEHidAdafruit : public BLEHidGeneric
 {
   public:
     /*--------- Callback Signatures ----------*/
-    typedef void (*kbd_led_cb_t)  (uint8_t leds_bitmap);
+    typedef void (*kbd_led_cb_t)  (uint16_t conn_hdl, uint8_t leds_bitmap);
 
     BLEHidAdafruit(void);
 
@@ -83,7 +83,7 @@ class BLEHidAdafruit : public BLEHidGeneric
     uint8_t _mse_buttons;
     kbd_led_cb_t _kbd_led_cb;
 
-    friend void blehid_ada_keyboard_output_cb(uint16_t conn_hdl, BLECharacteristic* chr, uint8_t* data, uint16_t len);
+    static void blehid_ada_keyboard_output_cb(uint16_t conn_hdl, BLECharacteristic* chr, uint8_t* data, uint16_t len);
 };
 
 #endif /* BLEHIDADAFRUIT_H_ */