From 2f0db41fb93ddd220bdf538c39953ac359d82de5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ond=C5=99ej=20Hru=C5=A1ka?= <ondra@ondrovo.com>
Date: Wed, 27 Dec 2017 22:57:45 +0100
Subject: [PATCH] add usb re-plug functionality to F072

---
 USB/usb_device.h    |  1 +
 platform/platform.c | 10 ++++++++--
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/USB/usb_device.h b/USB/usb_device.h
index 10791b7..a2aec03 100644
--- a/USB/usb_device.h
+++ b/USB/usb_device.h
@@ -58,6 +58,7 @@
 #include "usbd_def.h"
 
 extern USBD_HandleTypeDef hUsbDeviceFS;
+extern PCD_HandleTypeDef hpcd_USB_FS;
 
 /* USB_Device init function */	
 void MX_USB_DEVICE_Init(void);
diff --git a/platform/platform.c b/platform/platform.c
index 2ebd735..c2978aa 100644
--- a/platform/platform.c
+++ b/platform/platform.c
@@ -247,8 +247,14 @@ void plat_usb_reconnect(void)
 {
     // TODO add better reset methods available on different chips
 
-    // F103 doesn't have pull-up control, this is probably the best we can do
-    // This does not seem to trigger descriptors reload.
     USBD_LL_Reset(&hUsbDeviceFS);
+
+#if defined(GEX_PLAT_F072_DISCOVERY)
+    HAL_PCD_DevDisconnect(&hpcd_USB_FS);
+    osDelay(100);
+    HAL_PCD_DevConnect(&hpcd_USB_FS);
+#else
+    // F103 doesn't have pull-up control
+#endif
 }