From: arighi <arighi@38d2e660-2303-0410-9eaa-f027e97ec537>
Date: Mon, 27 Sep 2010 09:35:22 +0000 (+0000)
Subject: STM32: USB: endpoint buffer must be 4-bytes aligned
X-Git-Tag: 2.6.0~92
X-Git-Url: https://codewiz.org/gitweb?a=commitdiff_plain;h=b12629e93f75e4d8d0d750452d96d803f54489be;p=bertos.git

STM32: USB: endpoint buffer must be 4-bytes aligned

git-svn-id: https://src.develer.com/svnoss/bertos/trunk@4309 38d2e660-2303-0410-9eaa-f027e97ec537
---

diff --git a/bertos/cpu/cortex-m3/drv/usb_stm32.c b/bertos/cpu/cortex-m3/drv/usb_stm32.c
index e1fa5fbd..752b8e2d 100644
--- a/bertos/cpu/cortex-m3/drv/usb_stm32.c
+++ b/bertos/cpu/cortex-m3/drv/usb_stm32.c
@@ -1096,6 +1096,12 @@ ssize_t usb_endpointRead(int ep, void *buffer, ssize_t size)
 {
 	int ep_num = usb_ep_logical_to_hw(ep);
 
+	if (UNLIKELY((size_t)buffer & 0x03))
+	{
+		LOG_ERR("unaligned buffer @ %p\n", buffer);
+		ASSERT(0);
+	}
+
 	/* Non-blocking read for EP0 */
 	if (ep_num == CTRL_ENP_OUT)
 	{
@@ -1141,6 +1147,12 @@ ssize_t usb_endpointWrite(int ep, const void *buffer, ssize_t size)
 {
 	int ep_num = usb_ep_logical_to_hw(ep);
 
+	if (UNLIKELY((size_t)buffer & 0x03))
+	{
+		LOG_ERR("unaligned buffer @ %p\n", buffer);
+		ASSERT(0);
+	}
+
 	/* Non-blocking write for EP0 */
 	if (ep_num == CTRL_ENP_IN)
 	{