e6298a7a4c
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5679 42af7a65-404d-4744-a932-0658087f49c3
232 lines
7.2 KiB
C
232 lines
7.2 KiB
C
/****************************************************************************
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* configs/nucleus2g/src/up_leds.c
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* arch/arm/src/board/up_leds.c
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*
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* Copyright (C) 2010, 2013 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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/****************************************************************************
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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 "chip.h"
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#include "up_arch.h"
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#include "up_internal.h"
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#include "lpc17_gpio.h"
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#include "nucleus2g_internal.h"
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#ifdef 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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# ifdef CONFIG_DEBUG_VERBOSE
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# define ledvdbg lldbg
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# else
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# define ledvdbg(x...)
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# endif
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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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/* Dump GPIO registers */
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#if defined(CONFIG_DEBUG_VERBOSE) && defined(CONFIG_DEBUG_LEDS)
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# define led_dumpgpio(m) lpc17_dumpgpio(NUCLEUS2G_LED1_A, m)
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#else
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# define led_dumpgpio(m)
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#endif
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/* The Nucleus2G has 3 LEDs... two on the Babel CAN board and a "heartbeat" LED."
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* The LEDs on the Babel CAN board are capabl of OFF/GREEN/RED/AMBER status.
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* In normal usage, the two LEDs on the Babel CAN board would show CAN status, but if
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* CONFIG_ARCH_LEDS is defined, these LEDs will be controlled as follows for NuttX
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* debug functionality (where NC means "No Change").
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*
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* LED1 LED2 HEARTBEAT
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* +------- ------ -----------------------
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* LED_STARTED | OFF OFF OFF
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* LED_HEAPALLOCATE | GREEN OFF OFF
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* LED_IRQSENABLED | OFF GREEN OFF
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* LED_STACKCREATED | OFF OFF OFF
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* LED_INIRQ | NC NC ON (momentary)
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* LED_SIGNAL | NC NC ON (momentary)
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* LED_ASSERTION | NC NC ON (momentary)
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* LED_PANIC | NC NC ON (1Hz flashing)
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*/
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static bool g_initialized;
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static int g_nestcount;
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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: up_ledinit
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****************************************************************************/
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void up_ledinit(void)
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{
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/* Configure all LED GPIO lines */
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led_dumpgpio("up_ledinit() Entry)");
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lpc17_configgpio(NUCLEUS2G_LED1_A);
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lpc17_configgpio(NUCLEUS2G_LED1_B);
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lpc17_configgpio(NUCLEUS2G_LED2_A);
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lpc17_configgpio(NUCLEUS2G_LED2_B);
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lpc17_configgpio(NUCLEUS2G_HEARTBEAT);
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lpc17_configgpio(NUCLEUS2G_EXTRA_LED);
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led_dumpgpio("up_ledinit() Exit");
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}
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/****************************************************************************
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* Name: up_ledon
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****************************************************************************/
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void up_ledon(int led)
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{
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/* We will control LED1 and LED2 not yet completed the boot sequence. */
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if (!g_initialized)
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{
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enum lpc17_ledstate_e led1 = LPC17_LEDSTATE_OFF;
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enum lpc17_ledstate_e led2 = LPC17_LEDSTATE_OFF;
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switch (led)
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{
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case LED_STACKCREATED:
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g_initialized = true;
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case LED_STARTED:
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default:
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break;
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case LED_HEAPALLOCATE:
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led1 = LPC17_LEDSTATE_GREEN;
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break;
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case LED_IRQSENABLED:
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led2 = LPC17_LEDSTATE_GREEN;
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}
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lpc17_led1(led1);
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lpc17_led2(led2);
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}
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/* We will always control the HB LED */
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switch (led)
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{
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default:
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break;
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case LED_INIRQ:
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case LED_SIGNAL:
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case LED_ASSERTION:
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case LED_PANIC:
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lpc17_gpiowrite(NUCLEUS2G_HEARTBEAT, false);
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g_nestcount++;
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}
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}
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/****************************************************************************
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* Name: up_ledoff
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****************************************************************************/
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void up_ledoff(int led)
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{
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/* In all states, OFF can only mean turning off the HB LED */
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if (g_nestcount <= 1)
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{
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lpc17_gpiowrite(NUCLEUS2G_HEARTBEAT, true);
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g_nestcount = 0;
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}
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else
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{
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g_nestcount--;
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}
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}
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/************************************************************************************
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* Name: lpc17_led1 and 2
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*
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* Description:
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* Once the system has booted, these functions can be used to control LEDs 1 and 2
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*
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************************************************************************************/
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void lpc17_led1(enum lpc17_ledstate_e state)
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{
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bool red = (((unsigned int)state & LPC17_LEDSTATE_RED) != 0);
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bool green = (((unsigned int)state & LPC17_LEDSTATE_GREEN) != 0);
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lpc17_gpiowrite(NUCLEUS2G_LED1_A, red);
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lpc17_gpiowrite(NUCLEUS2G_LED1_B, green);
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}
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void lpc17_led2(enum lpc17_ledstate_e state)
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{
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bool red = (((unsigned int)state & LPC17_LEDSTATE_RED) != 0);
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bool green = (((unsigned int)state & LPC17_LEDSTATE_GREEN) != 0);
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lpc17_gpiowrite(NUCLEUS2G_LED2_A, red);
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lpc17_gpiowrite(NUCLEUS2G_LED2_B, green);
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}
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#endif /* CONFIG_ARCH_LEDS */
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