1 files changed, 152 insertions, 0 deletions
diff --git a/bsp/apollo2/board/led.c b/bsp/apollo2/board/led.c
new file mode 100644
index 0000000000..bb8d1e1532
--- /dev/null
+++ b/bsp/apollo2/board/led.c
@@ -0,0 +1,152 @@
+/*
+ * File      :_led.c
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2017-09-14     Haley        the first version
+ */
+
+#include <rtthread.h>
+#include <rtdevice.h>
+#include "am_mcu_apollo.h"
+#include "board.h"
+
+#define AM_GPIO_LED0                46
+#define AM_GPIO_LED1                47
+#define AM_GPIO_LED2                48
+#define AM_GPIO_LED3                49
+
+/**
+ * @brief Turns on the requested LED.
+ *
+ * @param LEDNum is the LED number for the light to turn on.
+ *
+ * This function turns on a single LED.
+ *
+ * @return None.
+ */
+void rt_hw_led_on(rt_uint8_t LEDNum)
+{
+    if(LEDNum == 0)
+        rt_pin_write(AM_GPIO_LED0, PIN_LOW);
+
+    else if(LEDNum == 1)
+        rt_pin_write(AM_GPIO_LED1, PIN_LOW);
+
+    else if(LEDNum == 2)
+        rt_pin_write(AM_GPIO_LED2, PIN_LOW);
+
+    else if(LEDNum == 3)
+        rt_pin_write(AM_GPIO_LED3, PIN_LOW);
+}
+
+/**
+ * @brief Turns off the requested LED.
+ *
+ * @param LEDNum is the LED number for the light to turn off.
+ *
+ * This function turns off a single LED.
+ *
+ * @return None.
+ */
+void rt_hw_led_off(rt_uint8_t LEDNum)
+{
+    if(LEDNum == 0)
+        rt_pin_write(AM_GPIO_LED0, PIN_HIGH);
+
+    else if(LEDNum == 1)
+        rt_pin_write(AM_GPIO_LED1, PIN_HIGH);
+
+    else if(LEDNum == 2)
+        rt_pin_write(AM_GPIO_LED2, PIN_HIGH);
+
+    else if(LEDNum == 3)
+        rt_pin_write(AM_GPIO_LED3, PIN_HIGH);
+}
+
+/**
+ * @brief Configures the necessary pins for an array of LEDs
+ *
+ * @param None.
+ *
+ * This function configures a GPIO to drive an LED in a low-power way.
+ *
+ * @return None.
+ */
+int rt_hw_led_init(void)
+{
+#if defined(RT_USING_LED0)
+    /* config led */
+    rt_pin_mode(AM_GPIO_LED0, PIN_MODE_OUTPUT);
+
+    /* turns off the led */
+    rt_hw_led_off(0);
+#endif /* RT_USING_LED0 */
+
+#if defined(RT_USING_LED1)
+    /* config led */
+    rt_pin_mode(AM_GPIO_LED1, PIN_MODE_OUTPUT);
+
+    /* turns off the led */
+    rt_hw_led_off(1);
+#endif /* RT_USING_LED1 */
+
+#if defined(RT_USING_LED2)
+    /* config led */
+    rt_pin_mode(AM_GPIO_LED2, PIN_MODE_OUTPUT);
+
+    /* turns off the led */
+    rt_hw_led_off(2);
+#endif /* RT_USING_LED0 */
+
+#if defined(RT_USING_LED3)
+    /* config led */
+    rt_pin_mode(AM_GPIO_LED3, PIN_MODE_OUTPUT);
+
+    /* turns off the led */
+    rt_hw_led_off(3);
+#endif /* RT_USING_LED1 */
+
+    return 0;
+}
+#ifdef RT_USING_PIN
+INIT_BOARD_EXPORT(rt_hw_led_init);
+#endif
+
+#ifdef RT_USING_FINSH
+#include <finsh.h>
+void led(rt_uint32_t led, rt_uint32_t state)
+{
+    /* set led status */
+    switch (state)
+    {
+    case 0:
+        rt_hw_led_off(led);
+        break;
+    case 1:
+        rt_hw_led_on(led);
+        break;
+    default:
+        break;
+    }
+}
+FINSH_FUNCTION_EXPORT(led, turn led (0 - 3) on (1) or off (0).)
+#endif
+
+/*@}*/