From fc1328783795c83cbcac30bf80bb2cc68b3dd272 Mon Sep 17 00:00:00 2001
From: hathach <thach@tinyusb.org>
Date: Wed, 19 Dec 2018 23:27:29 +0700
Subject: [PATCH 1/2] clean up

---
 .../components/libraries/bootloader_dfu/dfu_transport_ble.c    | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/lib/sdk11/components/libraries/bootloader_dfu/dfu_transport_ble.c b/lib/sdk11/components/libraries/bootloader_dfu/dfu_transport_ble.c
index c88a24c..665193e 100644
--- a/lib/sdk11/components/libraries/bootloader_dfu/dfu_transport_ble.c
+++ b/lib/sdk11/components/libraries/bootloader_dfu/dfu_transport_ble.c
@@ -741,7 +741,6 @@ static void on_ble_evt(ble_evt_t * p_ble_evt)
         case BLE_GAP_EVT_CONNECTED:
             m_conn_handle    = p_ble_evt->evt.gap_evt.conn_handle;
             m_is_advertising = false;
-            led_state(STATE_BLE_CONNECTED);
             break;
 
         case BLE_GAP_EVT_DISCONNECTED:
@@ -751,8 +750,6 @@ static void on_ble_evt(ble_evt_t * p_ble_evt)
 
                 m_direct_adv_cnt = APP_DIRECTED_ADV_TIMEOUT;
 
-                led_state(STATE_BLE_DISCONNECTED);
-
                 err_code = sd_ble_gatts_sys_attr_get(m_conn_handle,
                                                      sys_attr,
                                                      &sys_attr_len,

From 5c38bc89576d8943fb3b6a5f2354643794873700 Mon Sep 17 00:00:00 2001
From: hathach <thach@tinyusb.org>
Date: Thu, 20 Dec 2018 00:50:14 +0700
Subject: [PATCH 2/2] fix issue nrf52840 not reset properly when upgrading
 bootloader+sd combo

- root cause tusb_task()/cdc task is called when usb is not inited (in
case of sd upgrade)
---
 Makefile                                             |  2 +-
 .../components/libraries/bootloader_dfu/bootloader.c |  5 +++--
 src/usb/usb.c                                        | 12 ++++++++++++
 3 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/Makefile b/Makefile
index dc5a0e5..1f2cdc3 100644
--- a/Makefile
+++ b/Makefile
@@ -28,7 +28,7 @@ SD_HEX       = $(SD_PATH)/$(SD_FILENAME)_softdevice.hex
 LD_FILE      = $(SRC_PATH)/linker/$(SD_NAME)_v$(SD_VER1).ld
 
 MERGED_FNAME = $(OUTPUT_FILENAME)_$(SD_NAME)_$(SD_VERSION)
-RELEASE_DIR  = bin/$(BOARD)/$(SD_VERSION)
+RELEASE_DIR  = bin/$(BOARD)
 
 
 MK_DIS_FIRMWARE = "$(SD_NAME) $(SD_VERSION)"
diff --git a/lib/sdk11/components/libraries/bootloader_dfu/bootloader.c b/lib/sdk11/components/libraries/bootloader_dfu/bootloader.c
index 72d8d1b..cf9072e 100644
--- a/lib/sdk11/components/libraries/bootloader_dfu/bootloader.c
+++ b/lib/sdk11/components/libraries/bootloader_dfu/bootloader.c
@@ -128,8 +128,9 @@ static void wait_for_events(void)
     app_sched_execute();
 
 #ifdef NRF52840_XXAA
-    // usb is not enabled in OTA
-    if ( !is_ota() )
+    // skip if usb is not inited ( e.g OTA / finializing sd/bootloader )
+    extern bool usb_inited(void);
+    if ( usb_inited() )
     {
       tusb_task();
       tud_cdc_write_flush();
diff --git a/src/usb/usb.c b/src/usb/usb.c
index f49e6c0..aaebdf4 100644
--- a/src/usb/usb.c
+++ b/src/usb/usb.c
@@ -65,8 +65,20 @@ extern void tusb_hal_nrf_power_event(uint32_t event);
 
 
 //------------- IMPLEMENTATION -------------//
+static bool _inited = false;
+
+bool usb_inited(void)
+{
+  return _inited;
+}
+
 void usb_init(bool cdc_only)
 {
+  // skipped if already inited
+  if ( _inited ) return;
+
+  _inited = true;
+
   // USB power may already be ready at this time -> no event generated
   // We need to invoke the handler based on the status initially
   uint32_t usb_reg;