From: arighi <arighi@38d2e660-2303-0410-9eaa-f027e97ec537>
Date: Wed, 22 Sep 2010 10:18:36 +0000 (+0000)
Subject: STM32: USB: wLength field of the setup packet is in little-endian format
X-Git-Tag: 2.6.0~143
X-Git-Url: https://codewiz.org/gitweb?a=commitdiff_plain;h=2ed16baa0c2b345d6e3d95caccab6f92dc57a66f;p=bertos.git

STM32: USB: wLength field of the setup packet is in little-endian format

This is not really necessary for this architecture, but use
usb_cpu_to_le16() just for code readability.

git-svn-id: https://src.develer.com/svnoss/bertos/trunk@4258 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 f314f99f..fb86f47c 100644
--- a/bertos/cpu/cortex-m3/drv/usb_stm32.c
+++ b/bertos/cpu/cortex-m3/drv/usb_stm32.c
@@ -1101,7 +1101,7 @@ ssize_t usb_ep_read(int ep, void *buffer, ssize_t size)
 	/* Non-blocking read for EP0 */
 	if (ep_num == CTRL_ENP_OUT)
 	{
-		size = usb_size(size, setup_packet.wLength);
+		size = usb_size(size, usb_le16_to_cpu(setup_packet.wLength));
 		if (!size)
 			USB_StatusHandler(ep_num);
 		else
@@ -1146,7 +1146,7 @@ ssize_t usb_ep_write(int ep, const void *buffer, ssize_t size)
 	/* Non-blocking write for EP0 */
 	if (ep_num == CTRL_ENP_IN)
 	{
-		size = usb_size(size, setup_packet.wLength);
+		size = usb_size(size, usb_le16_to_cpu(setup_packet.wLength));
 		if (!size)
 			USB_StatusHandler(ep_num);
 		else
@@ -1297,7 +1297,7 @@ static int usb_get_device_descriptor(int id)
 	usb_dev->device->bMaxPacketSize0 = USB_EP0_MAX_SIZE;
 	__usb_ep_write(CTRL_ENP_IN, (const uint8_t *)usb_dev->device,
 			usb_size(usb_dev->device->bLength,
-			setup_packet.wLength),
+				usb_le16_to_cpu(setup_packet.wLength)),
 			USB_StatusHandler);
 	return 0;
 }
@@ -1332,7 +1332,7 @@ static int usb_get_configuration_descriptor(int id)
 	__usb_ep_write(CTRL_ENP_IN,
 			usb_cfg_buffer,
 			usb_size(p - usb_cfg_buffer,
-				setup_packet.wLength),
+				usb_le16_to_cpu(setup_packet.wLength)),
 			USB_StatusHandler);
 	return 0;
 }
@@ -1371,7 +1371,8 @@ static int usb_get_string_descriptor(unsigned int id)
 	}
 	__usb_ep_write(CTRL_ENP_IN,
 			lang_str,
-			usb_size(lang_str->bLength, setup_packet.wLength),
+			usb_size(lang_str->bLength,
+				usb_le16_to_cpu(setup_packet.wLength)),
 			USB_StatusHandler);
 	return 0;
 }