/****************************************************************************
* configs/pic32mz-starterkit/src/pic32mz_leds.c
*
* Copyright (C) 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 <arch/board/board.h>
#include "up_arch.h"
#include "up_internal.h"
#include "pic32mz-gpio.h"
#include "pic32mz-starterkit.h"
#ifdef CONFIG_ARCH_LEDS
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* LED Configuration ********************************************************/
/* The PIC32MZ Ethernet Starter kit has 3 user LEDs labelled LED1-3 on the
* board:
*
* PIN LED Notes
* --- ----- -------------------------
* RH0 LED1 High illuminates (RED)
* RH1 LED3 High illuminates (YELLOW)
* RH2 LED2 High illuminates (GREEN)
*
* If CONFIG_ARCH_LEDs is defined, then NuttX will control the 3 LEDs
* on board the Ethernet Starter Kit. The following definitions
* describe how NuttX controls the 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
*/
/* LED Management Definitions ***********************************************/
#define LED_OFF 0
#define LED_ON 1
#define LED_NC 2
/* 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
****************************************************************************/
struct led_setting_s
{
uint8_t led1 : 2;
uint8_t led2 : 2;
uint8_t led3 : 2;
uint8_t unused : 2;
};
/****************************************************************************
* 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.
*/
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},
};
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: pic32mz_setleds
****************************************************************************/
static void pic32mz_setleds(FAR const struct led_setting_s *setting)
{
if (setting->led1 != LED_NC)
{
pic32mz_gpiowrite(GPIO_LED_1, setting->led1 == LED_ON);
}
if (setting->led2 != LED_NC)
{
pic32mz_gpiowrite(GPIO_LED_2, setting->led2 == LED_ON);
}
if (setting->led3 != LED_NC)
{
pic32mz_gpiowrite(GPIO_LED_3, setting->led3 == LED_ON);
}
}
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: pic32mz_ledinit
****************************************************************************/
void pic32mz_ledinit(void)
{
/* Configure output pins */
pic32mz_configgpio(GPIO_LED_1);
pic32mz_configgpio(GPIO_LED_2);
pic32mz_configgpio(GPIO_LED_3);
}
/****************************************************************************
* Name: board_led_on
****************************************************************************/
void board_led_on(int led)
{
if ((unsigned)led < LED_NVALUES)
{
pic32mz_setleds(&g_ledonvalues[led]);
}
}
/****************************************************************************
* Name: board_led_off
****************************************************************************/
void board_led_off(int led)
{
if ((unsigned)led < LED_NVALUES)
{
pic32mz_setleds(&g_ledoffvalues[led]);
}
}
#endif /* CONFIG_ARCH_LEDS */
