154 lines
5.3 KiB
C
154 lines
5.3 KiB
C
/****************************************************************************
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* configs/efm32gg-stk3700/include/efm32_userleds.c
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*
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* Copyright (C) 2014 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/* The EFM32 Giant Gecko Start Kit has two yellow LEDs marked LED0 and LED1.
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* These LEDs are controlled by GPIO pins on the EFM32. The LEDs are
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* connected to pins PE2 and PE3 in an active high configuration:
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*
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* ------------------------------------- --------------------
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* EFM32 PIN BOARD SIGNALS
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* ------------------------------------- --------------------
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* E2/BCK_VOUT/EBI_A09 #0/ MCU_PE2 UIF_LED0
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* TIM3_CC2 #1/U1_TX #3/ACMP0_O #1
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* E3/BCK_STAT/EBI_A10 #0/U1_RX #3/ MCU_PE3 UIF_LED1
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* ACMP1_O #1
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* ------------------------------------- --------------------
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*
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* All LEDs are grounded and so are illuminated by outputting a high
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* value to the LED.
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*/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <debug.h>
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#include <arch/board/board.h>
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#include "efm32_gpio.h"
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#include "efm32gg-stk3700.h"
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#ifndef CONFIG_ARCH_LEDS
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/****************************************************************************
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* Definitions
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****************************************************************************/
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/* CONFIG_DEBUG_LEDS enables debug output from this file (needs CONFIG_DEBUG
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* with CONFIG_DEBUG_VERBOSE too)
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*/
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#ifdef CONFIG_DEBUG_LEDS
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# define leddbg lldbg
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# define ledvdbg llvdbg
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#else
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# define leddbg(x...)
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# define ledvdbg(x...)
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#endif
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/****************************************************************************
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* Private Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: sam_ledinit
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****************************************************************************/
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void sam_ledinit(void)
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{
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/* Configure LED PIOs for output */
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efm32_configgpio(GPIO_LED0);
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efm32_configgpio(GPIO_LED1);
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}
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/****************************************************************************
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* Name: sam_setled
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****************************************************************************/
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void sam_setled(int led, bool ledon)
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{
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uint32_t ledcfg;
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if (led == BOARD_LED0)
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{
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ledcfg = GPIO_LED0;
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}
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else if (led == BOARD_LED1)
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{
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ledcfg = GPIO_LED1;
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}
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else
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{
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return;
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}
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efm32_gpiowrite(ledcfg, ledon); /* High illuminates */
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}
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/****************************************************************************
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* Name: sam_setleds
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****************************************************************************/
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void sam_setleds(uint8_t ledset)
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{
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/* Hight illuminates */
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efm32_gpiowrite(GPIO_LED0, (ledset & BOARD_LED0_BIT) != 0);
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efm32_gpiowrite(GPIO_LED1, (ledset & BOARD_LED1_BIT) != 0);
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}
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#endif /* !CONFIG_ARCH_LEDS */
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