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+/****************************************************************************
+ * configs/mirtoo/src/up_leds.c
+ * arch/arm/src/board/up_leds.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 <stdint.h>
+#include <stdbool.h>
+#include <debug.h>
+
+#include <arch/board/board.h>
+
+#include "pic32mx-internal.h"
+#include "mirtoo-internal.h"
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+/* LED Configuration ********************************************************/
+/* The Mirtoo module has 2 user LEDs labeled LED0 and LED1 in the schematics:
+ *
+ * --- ----- --------------------------------------------------------------
+ * PIN Board Notes
+ * --- ----- --------------------------------------------------------------
+ * RC8 LED0 Grounded, high value illuminates
+ * RC9 LED1 Grounded, high value illuminates
+ *
+ * The Dimitech DTX1-4000L EV-kit1 supports 3 more LEDs, but there are not
+ * controllable from software.
+ *
+ * If CONFIG_ARCH_LEDS is defined, then NuttX will control these LEDs as
+ * follows:
+ * ON OFF
+ * ------------------------- ---- ---- ---- ----
+ * LED0 LED1 LED0 LED1
+ * ------------------------- ---- ---- ---- ----
+ * LED_STARTED 0 OFF OFF --- ---
+ * LED_HEAPALLOCATE 1 ON OFF --- ---
+ * LED_IRQSENABLED 2 OFF ON --- ---
+ * LED_STACKCREATED 3 ON ON --- ---
+ * LED_INIRQ 4 ON N/C OFF N/C
+ * LED_SIGNAL 4 ON N/C OFF N/C
+ * LED_ASSERTION 4 ON N/C OFF N/C
+ * LED_PANIC 4 ON N/C OFF N/C
+ */
+
+#define GPIO_LED_0 (GPIO_OUTPUT|GPIO_VALUE_ZERO|GPIO_PORTC|GPIO_PIN8)
+#define GPIO_LED_1 (GPIO_OUTPUT|GPIO_VALUE_ZERO|GPIO_PORTC|GPIO_PIN9)
+
+/* LED Management Definitions ***********************************************/
+
+#ifdef CONFIG_ARCH_LEDS
+# define LED_OFF 0
+# define LED_ON 1
+# define LED_NC 2
+#endif
+
+/* Debug ********************************************************************/
+
+#if defined(CONFIG_DEBUG) && defined(CONFIG_DEBUG_LEDS)
+# define leddbg lldbg
+# ifdef CONFIG_DEBUG_VERBOSE
+# define ledvdbg lldbg
+# else
+# define ledvdbg(x...)
+# endif
+#else
+# undef CONFIG_DEBUG_LEDS
+# undef CONFIG_DEBUG_VERBOSE
+# define leddbg(x...)
+# define ledvdbg(x...)
+#endif
+
+/****************************************************************************
+ * Private types
+ ****************************************************************************/
+
+#ifdef CONFIG_ARCH_LEDS
+struct led_setting_s
+{
+ uint8_t led0 : 2;
+ uint8_t led1 : 2;
+ uint8_t unused : 4;
+};
+#endif
+
+ /****************************************************************************
+ * Private Data
+ ****************************************************************************/
+/* If CONFIG_ARCH_LEDS is defined then NuttX will control the LEDs. The
+ * following structures identified the LED settings for each NuttX LED state.
+ */
+
+#ifdef CONFIG_ARCH_LEDS
+static const struct led_setting_s g_ledonvalues[LED_NVALUES] =
+{
+ {LED_OFF, LED_OFF, 0},
+ {LED_ON, LED_OFF, 0},
+ {LED_OFF, LED_ON, 0},
+ {LED_ON, LED_ON, 0},
+ {LED_ON, LED_NC, 0},
+};
+
+static const struct led_setting_s g_ledoffvalues[LED_NVALUES] =
+{
+ {LED_NC, LED_NC, 0},
+ {LED_NC, LED_NC, 0},
+ {LED_NC, LED_NC, 0},
+ {LED_NC, LED_NC, 0},
+ {LED_OFF, LED_NC, 0},
+};
+
+/* If CONFIG_ARCH_LEDS is not defined, the the user can control the LEDs in
+ * any way. The following array simply maps the PIC32MX_MIRTOO_LEDn
+ * index values to the correct LED pin configuration.
+ */
+
+#else
+static const uint16_t g_ledpincfg[PIC32MX_MIRTOO_NLEDS] =
+{
+ GPIO_LED_0, GPIO_LED_1
+};
+#endif
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: up_setleds
+ ****************************************************************************/
+
+#ifdef CONFIG_ARCH_LEDS
+void up_setleds(FAR const struct led_setting_s *setting)
+{
+ /* LEDs are pulled up so writing a low value (false) illuminates them */
+
+ if (setting->led0 != LED_NC)
+ {
+ pic32mx_gpiowrite(GPIO_LED_0, setting->led0 == LED_ON);
+ }
+
+ if (setting->led1 != LED_NC)
+ {
+ pic32mx_gpiowrite(GPIO_LED_1, setting->led1 == LED_ON);
+ }
+}
+#endif
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: pic32mx_ledinit
+ ****************************************************************************/
+
+void pic32mx_ledinit(void)
+{
+ /* Configure output pins */
+
+ pic32mx_configgpio(GPIO_LED_0);
+ pic32mx_configgpio(GPIO_LED_1);
+}
+
+/****************************************************************************
+ * Name: pic32mx_setled
+ ****************************************************************************/
+
+#ifndef CONFIG_ARCH_LEDS
+void pic32mx_setled(int led, bool ledon)
+{
+ /* LEDs are pulled up so writing a low value (false) illuminates them */
+
+ if ((unsigned)led < PIC32MX_MIRTOO_NLEDS)
+ {
+ pic32mx_gpiowrite(g_ledpincfg[led], ledon);
+ }
+}
+#endif
+
+/****************************************************************************
+ * Name: pic32mx_setleds
+ ****************************************************************************/
+
+#ifndef CONFIG_ARCH_LEDS
+void pic32mx_setleds(uint8_t ledset)
+{
+ /* Call pic32mx_setled() with ledon == true to illuminated the LED */
+
+ pic32mx_setled(PIC32MX_MIRTOO_LED0, (ledset & PIC32MX_MIRTOO_LED0_BIT) != 0);
+ pic32mx_setled(PIC32MX_MIRTOO_LED1, (ledset & PIC32MX_MIRTOO_LED1_BIT) != 0);
+}
+#endif
+
+/****************************************************************************
+ * Name: up_ledon
+ ****************************************************************************/
+
+#ifdef CONFIG_ARCH_LEDS
+void up_ledon(int led)
+{
+ if ((unsigned)led < LED_NVALUES)
+ {
+ up_setleds(&g_ledonvalues[led]);
+ }
+}
+#endif
+
+/****************************************************************************
+ * Name: up_ledoff
+ ****************************************************************************/
+
+#ifdef CONFIG_ARCH_LEDS
+void up_ledoff(int led)
+{
+ if ((unsigned)led < LED_NVALUES)
+ {
+ up_setleds(&g_ledoffvalues[led]);
+ }
+}
+#endif
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