Beginnings of STM32 F4 OTG FS device driver

git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@4551 7fd9a85b-ad96-42d3-883c-3090e2eb8679

3 files changed, 136 insertions, 0 deletions

diff --git a/nuttx/configs/stm3240g-eval/src/Makefile b/nuttx/configs/stm3240g-eval/src/Makefile
index 383ee68cf7..e28eff4eb1 100644
--- a/nuttx/configs/stm3240g-eval/src/Makefile
+++ b/nuttx/configs/stm3240g-eval/src/Makefile
@@ -56,6 +56,10 @@ ifeq ($(CONFIG_ARCH_BUTTONS),y)
 CSRCS		+=  up_buttons.c
 endif
 
+ifeq ($(CONFIG_USBDEV),y)
+CSRCS		+= up_usbdev.c
+endif
+
 ifeq ($(CONFIG_STM32_FSMC),y)
 CSRCS		+= up_extmem.c up_selectsram.c up_deselectsram.c
 endif
diff --git a/nuttx/configs/stm3240g-eval/src/stm3240g-internal.h b/nuttx/configs/stm3240g-eval/src/stm3240g-internal.h
index 69df25f6e8..c5df4cbd41 100644
--- a/nuttx/configs/stm3240g-eval/src/stm3240g-internal.h
+++ b/nuttx/configs/stm3240g-eval/src/stm3240g-internal.h
@@ -127,6 +127,17 @@
 #  endif
 #endif
 
+/* USB OTG FS 
+ *
+ * PA9  VBUS_FS
+ * PH5  OTG_FS_PowerSwitchOn
+ * PF11 OTG_FS_Overcurrent
+ */
+
+#define GPIO_OTGFS_VBUS  (GPIO_INPUT|GPIO_FLOAT|GPIO_SPEED_100MHz|GPIO_OPENDRAIN|GPIO_PORTA|GPIO_PIN9)
+#define GPIO_OTGFS_PWRON (GPIO_OUTPUT|GPIO_FLOAT|GPIO_SPEED_100MHz|GPIO_PUSHPULL|GPIO_PORTH|GPIO_PIN5)
+#define GPIO_OTGFS_OVER  (GPIO_INPUT|GPIO_FLOAT|GPIO_SPEED_100MHz|GPIO_PUSHPULL|GPIO_PORTF|GPIO_PIN11)
+
 /****************************************************************************************************
  * Public Types
  ****************************************************************************************************/
diff --git a/nuttx/configs/stm3240g-eval/src/up_usbdev.c b/nuttx/configs/stm3240g-eval/src/up_usbdev.c
new file mode 100644
index 0000000000..1920359a3f
--- /dev/null
+++ b/nuttx/configs/stm3240g-eval/src/up_usbdev.c
@@ -0,0 +1,121 @@
+/************************************************************************************
+ * configs/stm3240g-eval/src/up_usbdev.c
+ * arch/arm/src/board/up_boot.c
+ *
+ *   Copyright (C) 2012 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <sys/types.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <debug.h>
+
+#include <nuttx/usb/usbdev.h>
+#include <nuttx/usb/usbdev_trace.h>
+
+#include "up_arch.h"
+#include "stm32_internal.h"
+#include "stm3240g-internal.h"
+
+/************************************************************************************
+ * Definitions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Private Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Name: stm32_usbinitialize
+ *
+ * Description:
+ *   Called to setup USB-related GPIO pins for the STM3210E-EVAL board.
+ *
+ ************************************************************************************/
+
+void stm32_usbinitialize(void)
+{
+  /* The OTG FS has an internal soft pull-up */
+
+  /* Configure the OTG FS VBUS sensing GPIO, Power On, and Overcurrent GPIOs */
+
+#ifdef CONFIG_STM32_OTGFS
+  stm32_configgpio(GPIO_USB_PULLUP);
+  stm32_configgpio(GPIO_OTGFS_PWRON);
+  stm32_configgpio(GPIO_OTGFS_OVER);
+#endif
+}
+
+/************************************************************************************
+ * Name:  stm32_usbpullup
+ *
+ * Description:
+ *   If USB is supported and the board supports a pullup via GPIO (for USB software
+ *   connect and disconnect), then the board software must provide stm32_pullup.
+ *   See include/nuttx/usb/usbdev.h for additional description of this method.
+ *   Alternatively, if no pull-up GPIO the following EXTERN can be redefined to be
+ *   NULL.
+ *
+ ************************************************************************************/
+
+int stm32_usbpullup(FAR struct usbdev_s *dev, bool enable)
+{
+  usbtrace(TRACE_DEVPULLUP, (uint16_t)enable);
+  return OK;
+}
+
+/************************************************************************************
+ * Name:  stm32_usbsuspend
+ *
+ * Description:
+ *   Board logic must provide the stm32_usbsuspend logic if the USBDEV driver is
+ *   used.  This function is called whenever the USB enters or leaves suspend mode.
+ *   This is an opportunity for the board logic to shutdown clocks, power, etc.
+ *   while the USB is suspended.
+ *
+ ************************************************************************************/
+
+void stm32_usbsuspend(FAR struct usbdev_s *dev, bool resume)
+{
+  ulldbg("resume: %d\n", resume);
+}
+