/**************************************************************************** * configs/olimex-lpc-h3131/src/lpc31_leds.c * * Copyright (C) 2013 Gregory Nutt. All rights reserved. * Author: Gregory Nutt * * 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 #include #include #include #include #include "chip.h" #include "up_arch.h" #include "up_internal.h" #include "lpc31_internal.h" #include "lpc_h3131.h" /**************************************************************************** * Definitions ****************************************************************************/ /* CONFIG_DEBUG_LEDS enables debug output from this file (needs CONFIG_DEBUG * with CONFIG_DEBUG_VERBOSE too) */ #ifdef CONFIG_DEBUG_LEDS # define leddbg lldbg # define ledvdbg llvdbg #else # define leddbg(x...) # define ledvdbg(x...) #endif /**************************************************************************** * Private Data ****************************************************************************/ /**************************************************************************** * Private Functions ****************************************************************************/ /**************************************************************************** * Public Functions ****************************************************************************/ /**************************************************************************** * Name: board_led_initialize * * Description: * Configure LEDs. LEDs are left in the OFF state. * ****************************************************************************/ void board_led_initialize(void) { /* Turn off both LEDs */ gpio_outputlow(LPC31_IOCONFIG_GPIO, GPIO_LED1); gpio_outputlow(LPC31_IOCONFIG_GPIO, GPIO_LED2); } /**************************************************************************** * Name: board_led_on * * Description: * Select the "logical" ON state: * * SYMBOL Value Meaning LED state * LED2 LED1 * ---------------- ----- ----------------------- -------- -------- * LED_STARTED 0 NuttX has been started OFF OFF * LED_HEAPALLOCATE 0 Heap has been allocated OFF OFF * LED_IRQSENABLED 0 Interrupts enabled OFF OFF * LED_STACKCREATED 1 Idle stack created ON OFF * LED_INIRQ 2 In an interrupt N/C N/C * LED_SIGNAL 2 In a signal handler N/C N/C * LED_ASSERTION 2 An assertion failed N/C N/C * LED_PANIC 3 The system has crashed N/C Blinking * LED_IDLE - MCU is is sleep mode Not used * ****************************************************************************/ #ifdef CONFIG_ARCH_LEDS void board_led_on(int led) { switch (led) { case 0: gpio_outputlow(LPC31_IOCONFIG_GPIO, GPIO_LED1); gpio_outputlow(LPC31_IOCONFIG_GPIO, GPIO_LED2); break; case 1: gpio_outputlow(LPC31_IOCONFIG_GPIO, GPIO_LED1); gpio_outputhigh(LPC31_IOCONFIG_GPIO, GPIO_LED2); break; case 2: break; case 3: gpio_outputhigh(LPC31_IOCONFIG_GPIO, GPIO_LED1); break; } } #endif /**************************************************************************** * Name: board_led_off * * Description: * Select the "logical" OFF state: * * SYMBOL Value Meaning LED state * LED2 LED1 * ---------------- ----- ----------------------- -------- -------- * LED_STARTED 0 NuttX has been started OFF OFF * LED_HEAPALLOCATE 0 Heap has been allocated OFF OFF * LED_IRQSENABLED 0 Interrupts enabled OFF OFF * LED_STACKCREATED 1 Idle stack created ON OFF * LED_INIRQ 2 In an interrupt N/C N/C * LED_SIGNAL 2 In a signal handler N/C N/C * LED_ASSERTION 2 An assertion failed N/C N/C * LED_PANIC 3 The system has crashed N/C Blinking * LED_IDLE - MCU is is sleep mode Not used * ****************************************************************************/ #ifdef CONFIG_ARCH_LEDS void board_led_off(int led) { switch (led) { case 0: case 1: case 2: break; case 3: gpio_outputlow(LPC31_IOCONFIG_GPIO, GPIO_LED1); break; } } #endif /************************************************************************************ * Name: lpc31_setled, and lpc31_setleds * * Description: * These interfaces allow user control of the board LEDs. * * If CONFIG_ARCH_LEDS is defined, then NuttX will control both on-board LEDs up * until the completion of boot. The it will continue to control LED2; LED1 is * avaiable for application use. * * If CONFIG_ARCH_LEDS is not defined, then both LEDs are available for application * use. * ************************************************************************************/ void lpc31_setled(int led, bool ledon) { uint32_t bit; #ifndef CONFIG_ARCH_LEDS if (led == BOARD_LED1) { bit = GPIO_LED1; } else #endif if (led == BOARD_LED2) { bit = GPIO_LED2; } else { return; } if (ledon) { gpio_outputhigh(LPC31_IOCONFIG_GPIO, bit); } else { gpio_outputlow(LPC31_IOCONFIG_GPIO, bit); } } void lpc31_setleds(uint8_t ledset) { #ifndef CONFIG_ARCH_LEDS lpc31_setled(BOARD_LED1, (ledset & BOARD_LED1_BIT) != 0); #endif lpc31_setled(BOARD_LED2, (ledset & BOARD_LED2_BIT) != 0); }