/****************************************************************************
* configs/mirtoo/src/up_leds.c
* arch/arm/src/board/up_leds.c
*
* Copyright (C) 2012 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 "pic32mx-internal.h"
#include "mirtoo-internal.h"
/****************************************************************************
* Definitions
****************************************************************************/
/* LED Configuration ********************************************************/
/* The Mirtoo module has 2 user LEDs labeled LED0 and LED1 in the schematics:
*
* --- ----- --------------------------------------------------------------
* PIN Board Notes
* --- ----- --------------------------------------------------------------
* RC8 LED0 Grounded, high value illuminates
* RC9 LED1 Grounded, high value illuminates
*
* The Dimitech DTX1-4000L EV-kit1 supports 3 more LEDs, but there are not
* controllable from software.
*
* If CONFIG_ARCH_LEDS is defined, then NuttX will control these LEDs as
* follows:
* ON OFF
* ------------------------- ---- ---- ---- ----
* LED0 LED1 LED0 LED1
* ------------------------- ---- ---- ---- ----
* LED_STARTED 0 OFF OFF --- ---
* LED_HEAPALLOCATE 1 ON OFF --- ---
* LED_IRQSENABLED 2 OFF ON --- ---
* LED_STACKCREATED 3 ON ON --- ---
* LED_INIRQ 4 ON N/C OFF N/C
* LED_SIGNAL 4 ON N/C OFF N/C
* LED_ASSERTION 4 ON N/C OFF N/C
* LED_PANIC 4 ON N/C OFF N/C
*/
#define GPIO_LED_0 (GPIO_OUTPUT|GPIO_VALUE_ZERO|GPIO_PORTC|GPIO_PIN8)
#define GPIO_LED_1 (GPIO_OUTPUT|GPIO_VALUE_ZERO|GPIO_PORTC|GPIO_PIN9)
/* 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 led0 : 2;
uint8_t led1 : 2;
uint8_t unused : 4;
};
#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, 0},
{LED_ON, LED_OFF, 0},
{LED_OFF, LED_ON, 0},
{LED_ON, LED_ON, 0},
{LED_ON, LED_NC, 0},
};
static const struct led_setting_s g_ledoffvalues[LED_NVALUES] =
{
{LED_NC, LED_NC, 0},
{LED_NC, LED_NC, 0},
{LED_NC, LED_NC, 0},
{LED_NC, LED_NC, 0},
{LED_OFF, LED_NC, 0},
};
/* If CONFIG_ARCH_LEDS is not defined, the the user can control the LEDs in
* any way. The following array simply maps the PIC32MX_MIRTOO_LEDn
* index values to the correct LED pin configuration.
*/
#else
static const uint16_t g_ledpincfg[PIC32MX_MIRTOO_NLEDS] =
{
GPIO_LED_0, GPIO_LED_1
};
#endif
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: up_setleds
****************************************************************************/
#ifdef CONFIG_ARCH_LEDS
void up_setleds(FAR const struct led_setting_s *setting)
{
/* LEDs are pulled up so writing a low value (false) illuminates them */
if (setting->led0 != LED_NC)
{
pic32mx_gpiowrite(GPIO_LED_0, setting->led0 == LED_ON);
}
if (setting->led1 != LED_NC)
{
pic32mx_gpiowrite(GPIO_LED_1, setting->led1 == LED_ON);
}
}
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: pic32mx_ledinit
****************************************************************************/
void pic32mx_ledinit(void)
{
/* Configure output pins */
pic32mx_configgpio(GPIO_LED_0);
pic32mx_configgpio(GPIO_LED_1);
}
/****************************************************************************
* Name: pic32mx_setled
****************************************************************************/
#ifndef CONFIG_ARCH_LEDS
void pic32mx_setled(int led, bool ledon)
{
/* LEDs are pulled up so writing a low value (false) illuminates them */
if ((unsigned)led < PIC32MX_MIRTOO_NLEDS)
{
pic32mx_gpiowrite(g_ledpincfg[led], ledon);
}
}
#endif
/****************************************************************************
* Name: pic32mx_setleds
****************************************************************************/
#ifndef CONFIG_ARCH_LEDS
void pic32mx_setleds(uint8_t ledset)
{
/* Call pic32mx_setled() with ledon == true to illuminated the LED */
pic32mx_setled(PIC32MX_MIRTOO_LED0, (ledset & PIC32MX_MIRTOO_LED0_BIT) != 0);
pic32mx_setled(PIC32MX_MIRTOO_LED1, (ledset & PIC32MX_MIRTOO_LED1_BIT) != 0);
}
#endif
/****************************************************************************
* Name: up_ledon
****************************************************************************/
#ifdef CONFIG_ARCH_LEDS
void up_ledon(int led)
{
if ((unsigned)led < LED_NVALUES)
{
up_setleds(&g_ledonvalues[led]);
}
}
#endif
/****************************************************************************
* Name: up_ledoff
****************************************************************************/
#ifdef CONFIG_ARCH_LEDS
void up_ledoff(int led)
{
if ((unsigned)led < LED_NVALUES)
{
up_setleds(&g_ledoffvalues[led]);
}
}
#endif
