/***************************************************************************//** * @file dev_led.c * @brief LED driver of RT-Thread RTOS for EFM32 * COPYRIGHT (C) 2012, RT-Thread Development Team * @author onelife * @version 1.0 ******************************************************************************* * @section License * The license and distribution terms for this file may be found in the file * LICENSE in this distribution or at http://www.rt-thread.org/license/LICENSE ******************************************************************************* * @section Change Logs * Date Author Notes * 2009-01-05 Bernard the first version * 2010-12-27 onelife Modify for EFM32 * 2011-05-06 onelife Add EFM32 development kit support * 2011-12-08 onelife Add giant gecko development kit support ******************************************************************************/ /***************************************************************************//** * @addtogroup efm32 * @{ ******************************************************************************/ /* Includes ------------------------------------------------------------------*/ #include "board.h" #include "dev_led.h" /* Private typedef -----------------------------------------------------------*/ /* Private define ------------------------------------------------------------*/ /* Private macro -------------------------------------------------------------*/ /* Private constants ---------------------------------------------------------*/ #if defined(EFM32_G8XX_STK) static const rt_uint8_t leds_list[LEDS_MAX_NUMBER][2] = \ { {LEDS_PIN_PORT_0, LEDS_PIN_NUMBER_0}, {LEDS_PIN_PORT_1, LEDS_PIN_NUMBER_1}, {LEDS_PIN_PORT_2, LEDS_PIN_NUMBER_2}, {LEDS_PIN_PORT_3, LEDS_PIN_NUMBER_3} }; #endif /* Private variables ---------------------------------------------------------*/ /* Private function prototypes -----------------------------------------------*/ /* Private functions ---------------------------------------------------------*/ /***************************************************************************//** * @brief * Turn on a LED * * @details * * @note * * @param[in] num * LED number * ******************************************************************************/ void rt_hw_led_on(rt_uint8_t num) { RT_ASSERT(num < LEDS_MAX_NUMBER); #if defined(EFM32_G8XX_STK) GPIO_PinOutSet(leds_list[num][0], leds_list[num][1]); #elif (defined(EFM32_GXXX_DK) || defined(EFM32GG_DK3750)) { rt_uint16_t leds; leds = DVK_getLEDs() | (rt_uint16_t)(1 << num); DVK_setLEDs(leds); } #endif } /***************************************************************************//** * @brief * Turn off a LED * * @details * * @note * * @param[in] num * LED number * ******************************************************************************/ void rt_hw_led_off(rt_uint8_t num) { RT_ASSERT(num < LEDS_MAX_NUMBER); #if defined(EFM32_G8XX_STK) GPIO_PinOutClear(leds_list[num][0], leds_list[num][1]); #elif (defined(EFM32_GXXX_DK) || defined(EFM32GG_DK3750)) { rt_uint16_t leds; leds = DVK_getLEDs() & ~(rt_uint16_t)(1 << num); DVK_setLEDs(leds); } #endif } /***************************************************************************//** * @brief * Toggle the state of a LED * * @details * * @note * * @param[in] num * LED number * ******************************************************************************/ void rt_hw_led_toggle(rt_uint8_t num) { RT_ASSERT(num < LEDS_MAX_NUMBER); #if defined(EFM32_G8XX_STK) GPIO_PinOutToggle(leds_list[num][0], leds_list[num][1]); #elif (defined(EFM32_GXXX_DK) || defined(EFM32GG_DK3750)) { rt_uint16_t leds; leds = DVK_getLEDs() ^ (rt_uint16_t)(1 << num); DVK_setLEDs(leds); } #endif } rt_uint8_t rt_hw_led_state(rt_uint8_t num) { RT_ASSERT(num < LEDS_MAX_NUMBER); #if defined(EFM32_G8XX_STK) return (rt_uint8_t)GPIO_PinInGet(leds_list[num][0], leds_list[num][1]); #elif (defined(EFM32_GXXX_DK) || defined(EFM32GG_DK3750)) return ((DVK_getLEDs() & (rt_uint16_t)(1 << num)) >> num); #endif } /***************************************************************************//** * @brief * Initialize the LEDs related GPIO * * @details * * @note * * @return * Error code ******************************************************************************/ rt_err_t rt_hw_led_init(void) { #if defined(EFM32_G8XX_STK) rt_uint8_t i; /* Configure GPIO */ for (i = 0; i < LEDS_MAX_NUMBER; i++) { GPIO_PinModeSet( leds_list[i][0], leds_list[i][1], gpioModePushPull, 0); } #endif return RT_EOK; } /***************************************************************************//** * Export to FINSH ******************************************************************************/ #ifdef RT_USING_FINSH #include <finsh.h> void list_leds(void) { rt_uint8_t i; rt_kprintf(" led \t port \t pin \t state\n"); rt_kprintf(" -----\t -----\t -----\t -----\n"); for (i = 0; i < LEDS_MAX_NUMBER; i++) { #if defined(EFM32_G8XX_STK) rt_kprintf(" %d \t %x \t %x \t %x \n", i, leds_list[i][0], leds_list[i][1], rt_hw_led_state(i)); #elif (defined(EFM32_GXXX_DK) || defined(EFM32GG_DK3750)) rt_uint16_t leds; leds = DVK_getLEDs(); rt_kprintf(" %d \t FPGA \t FPGA \t %x \n", i, (leds & (1 << i))? 1 : 0); #endif } } FINSH_FUNCTION_EXPORT(list_leds, list all the LEDs.) void set_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(set_led, turn led (0 - 3) on (1) or off (0).) #endif /***************************************************************************//** * @} ******************************************************************************/