From: arighi <arighi@38d2e660-2303-0410-9eaa-f027e97ec537>
Date: Fri, 11 Feb 2011 15:02:21 +0000 (+0000)
Subject: USB: allow to configure the maximum packet size of EP0
X-Git-Tag: 2.7.0~267
X-Git-Url: https://codewiz.org/gitweb?a=commitdiff_plain;h=5c8dfe7f8e209f4fb19db7c73cc24af1982b12a2;p=bertos.git

USB: allow to configure the maximum packet size of EP0

All USB devices support endpoint 0 (EP0) when powered up. This endpoint
is the target of the default pipe. After the attachment of a device has
been detected, the USB software uses endpoint 0 to initialise the
device, perform generic (i.e., non device-specific) configuration, and
obtain information about the other endpoints provided by the device.

The descriptor of EP0 is hard-coded into the low-level device driver of
each target platform, and cannot be re-defined by the user to implement
a custom USB device. So, expose the maximum packet size of this special
endpoint as a configurable parameter into the wizard.

git-svn-id: https://src.develer.com/svnoss/bertos/trunk@4699 38d2e660-2303-0410-9eaa-f027e97ec537
---

diff --git a/bertos/cfg/cfg_usb.h b/bertos/cfg/cfg_usb.h
index d1c724c9..dbfd6fe1 100644
--- a/bertos/cfg/cfg_usb.h
+++ b/bertos/cfg/cfg_usb.h
@@ -75,4 +75,11 @@
  */
 #define CONFIG_USB_EP_MAX  0
 
+/**
+ * Maximum packet size of the control endpoint 0 [bytes].
+ * $WIZ$ type = "int"
+ * $WIZ$ min = 8
+ */
+#define CONFIG_EP0_MAX_SIZE 8
+
 #endif /* CFG_USB_H */
diff --git a/bertos/cpu/cortex-m3/drv/usb_stm32.h b/bertos/cpu/cortex-m3/drv/usb_stm32.h
index a4cbb6b5..7801e2c8 100644
--- a/bertos/cpu/cortex-m3/drv/usb_stm32.h
+++ b/bertos/cpu/cortex-m3/drv/usb_stm32.h
@@ -50,7 +50,7 @@
 #define USB_DP_PIN	(1 << 12)
 #define USB_DISC_PIN	(1 << 11)
 
-#define USB_EP0_MAX_SIZE	8
+#define USB_EP0_MAX_SIZE	CONFIG_EP0_MAX_SIZE
 #define USB_XFER_MAX_SIZE	64
 
 #define EP_MAX_SLOTS	USB_EP_MAX
diff --git a/boards/stm32-p103/examples/usbkeyboard/cfg/cfg_usb.h b/boards/stm32-p103/examples/usbkeyboard/cfg/cfg_usb.h
index d1c724c9..dbfd6fe1 100644
--- a/boards/stm32-p103/examples/usbkeyboard/cfg/cfg_usb.h
+++ b/boards/stm32-p103/examples/usbkeyboard/cfg/cfg_usb.h
@@ -75,4 +75,11 @@
  */
 #define CONFIG_USB_EP_MAX  0
 
+/**
+ * Maximum packet size of the control endpoint 0 [bytes].
+ * $WIZ$ type = "int"
+ * $WIZ$ min = 8
+ */
+#define CONFIG_EP0_MAX_SIZE 8
+
 #endif /* CFG_USB_H */
diff --git a/boards/stm32-p103/examples/usbmouse/cfg/cfg_usb.h b/boards/stm32-p103/examples/usbmouse/cfg/cfg_usb.h
index d1c724c9..dbfd6fe1 100644
--- a/boards/stm32-p103/examples/usbmouse/cfg/cfg_usb.h
+++ b/boards/stm32-p103/examples/usbmouse/cfg/cfg_usb.h
@@ -75,4 +75,11 @@
  */
 #define CONFIG_USB_EP_MAX  0
 
+/**
+ * Maximum packet size of the control endpoint 0 [bytes].
+ * $WIZ$ type = "int"
+ * $WIZ$ min = 8
+ */
+#define CONFIG_EP0_MAX_SIZE 8
+
 #endif /* CFG_USB_H */
diff --git a/boards/stm32-p103/examples/usbserial/cfg/cfg_usb.h b/boards/stm32-p103/examples/usbserial/cfg/cfg_usb.h
index d1c724c9..dbfd6fe1 100644
--- a/boards/stm32-p103/examples/usbserial/cfg/cfg_usb.h
+++ b/boards/stm32-p103/examples/usbserial/cfg/cfg_usb.h
@@ -75,4 +75,11 @@
  */
 #define CONFIG_USB_EP_MAX  0
 
+/**
+ * Maximum packet size of the control endpoint 0 [bytes].
+ * $WIZ$ type = "int"
+ * $WIZ$ min = 8
+ */
+#define CONFIG_EP0_MAX_SIZE 8
+
 #endif /* CFG_USB_H */