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nuttx/configs/pic32mx-starterkit/src/pic32mx_leds.c

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/****************************************************************************
* configs/pic32mx-starterkit/src/pic32mx_leds.c
*
* Copyright (C) 2011, 2015 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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 <nuttx/config.h>
#include <stdint.h>
#include <stdbool.h>
#include <debug.h>
#include <nuttx/board.h>
#include <arch/board/board.h>
#include "chip.h"
#include "up_arch.h"
#include "up_internal.h"
#include "pic32mx-internal.h"
#include "pic32mx-ioport.h"
#include "pic32mx-starterkit.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* LED Configuration ********************************************************/
/* The PIC32MX Ethernet Starter kit has 3 user LEDs labelled LED1-3 on the
* board graphics (but referred to as LED4-6 in the schematic):
*
* PIN User's Guide Board Stencil Notes
* --- ------------- -------------- -------------------------
* RD0 "User LED D4" "LED1 (RD0") High illuminates (RED)
* RD2 "User LED D5" "LED3 (RD2)" High illuminates (YELLOW)
* RD1 "User LED D6" "LED2 (RD1)" High illuminates (GREEN)
*
* We will use the labels on the board to identify LEDs
*
* ON OFF
* ------------------------- ---- ---- ---- ---- ---- ----
* LED1 LED2 LED3 LED1 LED2 LED3
* ------------------------- ---- ---- ---- ---- ---- ----
* LED_STARTED 0 OFF OFF OFF --- --- ---
* LED_HEAPALLOCATE 1 ON OFF N/C --- --- ---
* LED_IRQSENABLED 2 OFF ON N/C --- --- ---
* LED_STACKCREATED 3 ON ON N/C --- --- ---
* LED_INIRQ 4 N/C N/C ON N/C N/C OFF
* LED_SIGNAL 4 N/C N/C ON N/C N/C OFF
* LED_ASSERTION 4 N/C N/C ON N/C N/C OFF
* LED_PANIC 5 ON N/C N/C OFF N/C N/C
*/
#define GPIO_LED_1 (GPIO_OUTPUT|GPIO_VALUE_ZERO|GPIO_PORTD|GPIO_PIN0)
#define GPIO_LED_2 (GPIO_OUTPUT|GPIO_VALUE_ZERO|GPIO_PORTD|GPIO_PIN1)
#define GPIO_LED_3 (GPIO_OUTPUT|GPIO_VALUE_ZERO|GPIO_PORTD|GPIO_PIN2)
/* LED Management Definitions ***********************************************/
#ifdef CONFIG_ARCH_LEDS
# define LED_OFF 0
# define LED_ON 1
# define LED_NC 2
#endif
/* Debug ********************************************************************/
#if defined(CONFIG_DEBUG) && defined(CONFIG_DEBUG_LEDS)
# define leddbg lldbg
# ifdef CONFIG_DEBUG_VERBOSE
# define ledvdbg lldbg
# else
# define ledvdbg(x...)
# endif
#else
# undef CONFIG_DEBUG_LEDS
# undef CONFIG_DEBUG_VERBOSE
# define leddbg(x...)
# define ledvdbg(x...)
#endif
/****************************************************************************
* Private types
****************************************************************************/
#ifdef CONFIG_ARCH_LEDS
struct led_setting_s
{
uint8_t led1 : 2;
uint8_t led2 : 2;
uint8_t led3 : 2;
uint8_t unused : 2;
};
#endif
/****************************************************************************
* Private Data
****************************************************************************/
/* If CONFIG_ARCH_LEDS is defined then NuttX will control the LEDs. The
* following structures identified the LED settings for each NuttX LED state.
*/
#ifdef CONFIG_ARCH_LEDS
static const struct led_setting_s g_ledonvalues[LED_NVALUES] =
{
{LED_OFF, LED_OFF, LED_OFF, LED_OFF},
{LED_ON, LED_OFF, LED_NC, LED_OFF},
{LED_OFF, LED_ON, LED_NC, LED_OFF},
{LED_ON, LED_ON, LED_NC, LED_OFF},
{LED_NC, LED_NC, LED_ON, LED_OFF},
{LED_ON, LED_NC, LED_NC, LED_OFF},
};
static const struct led_setting_s g_ledoffvalues[LED_NVALUES] =
{
{LED_NC, LED_NC, LED_NC, LED_OFF},
{LED_NC, LED_NC, LED_NC, LED_OFF},
{LED_NC, LED_NC, LED_NC, LED_OFF},
{LED_NC, LED_NC, LED_NC, LED_OFF},
{LED_NC, LED_NC, LED_OFF, LED_OFF},
{LED_OFF, LED_NC, LED_NC, LED_OFF},
};
/* If CONFIG_ARCH_LEDS is not defined, then the user can control the LEDs in
* any way. The following array simply maps the PIC32MX_STARTERKIT_LEDn
* index values to the correct LED pin configuration.
*/
#else
static const uint16_t g_ledpincfg[PIC32MX_STARTERKIT_NLEDS] =
{
GPIO_LED_1, GPIO_LED_2, GPIO_LED_3
};
#endif
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: pic32mx_setleds
****************************************************************************/
#ifdef CONFIG_ARCH_LEDS
static void pic32mx_setleds(FAR const struct led_setting_s *setting)
{
if (setting->led1 != LED_NC)
{
pic32mx_gpiowrite(GPIO_LED_1, setting->led1 == LED_ON);
}
if (setting->led2 != LED_NC)
{
pic32mx_gpiowrite(GPIO_LED_2, setting->led2 == LED_ON);
}
if (setting->led3 != LED_NC)
{
pic32mx_gpiowrite(GPIO_LED_3, setting->led3 == LED_ON);
}
}
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: pic32mx_ledinit
****************************************************************************/
void pic32mx_ledinit(void)
{
/* Configure output pins */
pic32mx_configgpio(GPIO_LED_1);
pic32mx_configgpio(GPIO_LED_2);
pic32mx_configgpio(GPIO_LED_3);
}
/****************************************************************************
* Name: pic32mx_setled
****************************************************************************/
#ifndef CONFIG_ARCH_LEDS
void pic32mx_setled(int led, bool ledon)
{
if ((unsigned)led < PIC32MX_STARTERKIT_NLEDS)
{
pic32mx_gpiowrite(g_ledpincfg[led], ledon);
}
}
#endif
/****************************************************************************
* Name: pic32mx_setleds
****************************************************************************/
#ifndef CONFIG_ARCH_LEDS
void pic32mx_setleds(uint8_t ledset)
{
pic32mx_setled(PIC32MX_STARTERKIT_LED1, (ledset & PIC32MX_STARTERKIT_LED1_BIT) != 0);
pic32mx_setled(PIC32MX_STARTERKIT_LED2, (ledset & PIC32MX_STARTERKIT_LED2_BIT) != 0);
pic32mx_setled(PIC32MX_STARTERKIT_LED3, (ledset & PIC32MX_STARTERKIT_LED3_BIT) != 0);
}
#endif
/****************************************************************************
* Name: board_led_on
****************************************************************************/
#ifdef CONFIG_ARCH_LEDS
void board_led_on(int led)
{
if ((unsigned)led < LED_NVALUES)
{
pic32mx_setleds(&g_ledonvalues[led]);
}
}
#endif
/****************************************************************************
* Name: board_led_off
****************************************************************************/
#ifdef CONFIG_ARCH_LEDS
void board_led_off(int led)
{
if ((unsigned)led < LED_NVALUES)
{
pic32mx_setleds(&g_ledoffvalues[led]);
}
}
#endif
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