Beginnings of support for the STM32F3Discovery board

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5616 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 248 insertions, 0 deletions

diff --git a/nuttx/configs/stm32f3discovery/src/up_userleds.c b/nuttx/configs/stm32f3discovery/src/up_userleds.c
new file mode 100644
index 000000000..3b7bfa08f
--- /dev/null
+++ b/nuttx/configs/stm32f3discovery/src/up_userleds.c
@@ -0,0 +1,248 @@
+/****************************************************************************
+ * configs/stm32f3discovery/src/up_leds.c
+ * arch/arm/src/board/up_leds.c
+ *
+ *   Copyright (C) 2011 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 <stdint.h>
+#include <stdbool.h>
+#include <debug.h>
+
+#include <arch/board/board.h>
+#include <nuttx/power/pm.h>
+
+#include "chip.h"
+#include "up_arch.h"
+#include "up_internal.h"
+#include "stm32_internal.h"
+#include "stm32f3discovery-internal.h"
+
+#ifndef CONFIG_ARCH_LEDS
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+/* Enables debug output from this file (needs CONFIG_DEBUG with
+ * CONFIG_DEBUG_VERBOSE too)
+ */
+
+#undef LED_DEBUG  /* Define to enable debug */
+
+#ifdef LED_DEBUG
+#  define leddbg  lldbg
+#  define ledvdbg llvdbg
+#else
+#  define leddbg(x...)
+#  define ledvdbg(x...)
+#endif
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+/* This array maps an LED number to GPIO pin configuration */
+
+static uint32_t g_ledcfg[BOARD_NLEDS] = 
+{
+  GPIO_LED1, GPIO_LED2, GPIO_LED3, GPIO_LED4
+};
+
+/****************************************************************************
+ * Private Function Protototypes
+ ****************************************************************************/
+
+/* LED Power Management */
+
+#ifdef CONFIG_PM
+static void led_pm_notify(struct pm_callback_s *cb, enum pm_state_e pmstate);
+static int led_pm_prepare(struct pm_callback_s *cb, enum pm_state_e pmstate);
+#endif
+
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+#ifdef CONFIG_PM
+static struct pm_callback_s g_ledscb =
+{
+  .notify  = led_pm_notify,
+  .prepare = led_pm_prepare,
+};
+#endif
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: led_pm_notify
+ *
+ * Description:
+ *   Notify the driver of new power state. This callback is called after
+ *   all drivers have had the opportunity to prepare for the new power state.
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_PM
+static void led_pm_notify(struct pm_callback_s *cb , enum pm_state_e pmstate)
+{
+  switch (pmstate)
+    {
+      case(PM_NORMAL):
+        {
+          /* Restore normal LEDs operation */
+
+        }
+        break;
+
+      case(PM_IDLE):
+        {
+          /* Entering IDLE mode - Turn leds off */
+
+        }
+        break;
+
+      case(PM_STANDBY):
+        {
+          /* Entering STANDBY mode - Logic for PM_STANDBY goes here */
+
+        }
+        break;
+
+      case(PM_SLEEP):
+        {
+          /* Entering SLEEP mode - Logic for PM_SLEEP goes here */
+
+        }
+        break;
+
+      default:
+        {
+          /* Should not get here */
+
+        }
+        break;
+    }
+}
+#endif
+
+/****************************************************************************
+ * Name: led_pm_prepare
+ *
+ * Description:
+ *   Request the driver to prepare for a new power state. This is a warning
+ *   that the system is about to enter into a new power state. The driver
+ *   should begin whatever operations that may be required to enter power
+ *   state. The driver may abort the state change mode by returning a
+ *   non-zero value from the callback function.
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_PM
+static int led_pm_prepare(struct pm_callback_s *cb , enum pm_state_e pmstate)
+{
+  /* No preparation to change power modes is required by the LEDs driver.
+   * We always accept the state change by returning OK.
+   */
+
+  return OK;
+}
+#endif
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: stm32_ledinit
+ ****************************************************************************/
+
+void stm32_ledinit(void)
+{
+   /* Configure LED1-4 GPIOs for output */
+
+   stm32_configgpio(GPIO_LED1);
+   stm32_configgpio(GPIO_LED2);
+   stm32_configgpio(GPIO_LED3);
+   stm32_configgpio(GPIO_LED4);
+}
+
+/****************************************************************************
+ * Name: stm32_setled
+ ****************************************************************************/
+
+void stm32_setled(int led, bool ledon)
+{
+  if ((unsigned)led < BOARD_NLEDS)
+    {
+      stm32_gpiowrite(g_ledcfg[led], ledon);
+    }
+}
+
+/****************************************************************************
+ * Name: stm32_setleds
+ ****************************************************************************/
+
+void stm32_setleds(uint8_t ledset)
+{
+  stm32_gpiowrite(GPIO_LED1, (ledset & BOARD_LED1_BIT) == 0);
+  stm32_gpiowrite(GPIO_LED2, (ledset & BOARD_LED2_BIT) == 0);
+  stm32_gpiowrite(GPIO_LED3, (ledset & BOARD_LED3_BIT) == 0);
+  stm32_gpiowrite(GPIO_LED4, (ledset & BOARD_LED4_BIT) == 0);
+}
+
+/****************************************************************************
+ * Name: up_ledpminitialize
+ ****************************************************************************/
+
+#ifdef CONFIG_PM
+void up_ledpminitialize(void)
+{
+  /* Register to receive power management callbacks */
+
+  int ret = pm_register(&g_ledscb);
+  if (ret != OK)
+  {
+      up_ledon(LED_ASSERTION);
+    }
+}
+#endif /* CONFIG_PM */
+
+#endif /* !CONFIG_ARCH_LEDS */