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nuttx/configs/pcduino-a10/src/a1x_leds.c

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/****************************************************************************
* configs/pcduino-a10/src/a1x_leds.c
*
* Copyright (C) 2013, 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 "pcduino_a10.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* The pcDuino v1 has four green LEDs; three can be controlled from software.
* Two are tied to ground and, hence, illuminated by driving the output pins
* to a high value:
*
* 1. LED1 SPI0_CLK SPI0_CLK/UART5_RX/EINT23/PI11
* 2. LED5 IPSOUT From the PMU (not controllable by software)
*
* And two are pull high and, hence, illuminated by grounding the output:
*
* 3. LED3 RX_LED LCD1_D16/ATAD12/KP_IN6/SMC_DET/EINT16/CSI1_D16/PH16
* 4. LED4 TX_LED LCD1_D15/ATAD11/KP_IN5/SMC_VPPPP/EINT15/CSI1_D15/PH15
* These LEDs are not used by the board port unless CONFIG_ARCH_LEDS is
* defined. In that case, the usage by the board port is defined in
* include/board.h and src/stm32_leds.c. The LEDs are used to encode OS-related
* events as follows:
*
* SYMBOL Meaning LED state
* LED1 LED3 LED4
* ----------------- ----------------------- ---- ---- ---- ------------
* LED_STARTED NuttX has been started ON OFF OFF
* LED_HEAPALLOCATE Heap has been allocated OFF ON OFF
* LED_IRQSENABLED Interrupts enabled ON ON OFF
* LED_STACKCREATED Idle stack created ON ON OFF
* LED_INIRQ In an interrupt N/C N/C Soft glow
* LED_SIGNAL In a signal handler N/C N/C Soft glow
* LED_ASSERTION An assertion failed N/C N/C Soft glow
* LED_PANIC The system has crashed N/C N/C 2Hz Flashing
* LED_IDLE MCU is is sleep mode Not used
*
* After booting, LED1 and 3 are not longer used by the system and can be used for
* other purposes by the application (Of course, all LEDs are available to the
* application if CONFIG_ARCH_LEDS is not defined.
*/
/* 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: a1x_led_initialize
*
* Description:
* Configure LEDs. LEDs are left in the OFF state.
*
****************************************************************************/
void a1x_led_initialize(void)
{
a1x_pio_config(PIO_LED1);
a1x_pio_config(PIO_LED3);
a1x_pio_config(PIO_LED4);
}
/****************************************************************************
* Name: board_led_on
*
* Description:
* Select the "logical" ON state:
*
* SYMBOL Value Meaning LED state
* LED1 LED3 LED4
* ----------------- ----- ----------------------- ---- ---- ------------
* LED_STARTED 0 NuttX has been started ON OFF OFF
* LED_HEAPALLOCATE 1 Heap has been allocated OFF ON OFF
* LED_IRQSENABLED 2 Interrupts enabled ON ON OFF
* LED_STACKCREATED 2 Idle stack created ON ON OFF
* LED_INIRQ 3 In an interrupt N/C N/C Soft glow
* LED_SIGNAL 3 In a signal handler N/C N/C Soft glow
* LED_ASSERTION 3 An assertion failed N/C N/C Soft glow
* LED_PANIC 3 The system has crashed N/C N/C 2Hz Flashing
* LED_IDLE --- MCU is is sleep mode Not used
*
* LED1 is illuminated by driving the output pins to a high value
* LED3 and LED 4 are illuminated by taking the output to ground.
*
****************************************************************************/
#ifdef CONFIG_ARCH_LEDS
void board_led_on(int led)
{
switch (led)
{
case 0:
a1x_pio_write(PIO_LED1, true);
a1x_pio_write(PIO_LED3, true);
a1x_pio_write(PIO_LED4, true);
break;
case 1:
a1x_pio_write(PIO_LED1, false);
a1x_pio_write(PIO_LED3, false);
a1x_pio_write(PIO_LED4, true);
break;
case 2:
a1x_pio_write(PIO_LED1, false);
a1x_pio_write(PIO_LED3, true);
a1x_pio_write(PIO_LED4, true);
break;
case 3:
a1x_pio_write(PIO_LED4, false);
break;
}
}
#endif
/****************************************************************************
* Name: board_led_off
*
* Description:
* Select the "logical" OFF state:
*
* SYMBOL Value Meaning LED state
* LED1 LED3 LED4
* ----------------- ----- ----------------------- ---- ---- ------------
* LED_STARTED 0 NuttX has been started ON OFF OFF
* LED_HEAPALLOCATE 1 Heap has been allocated OFF ON OFF
* LED_IRQSENABLED 2 Interrupts enabled ON ON OFF
* LED_STACKCREATED 2 Idle stack created ON ON OFF
* LED_INIRQ 3 In an interrupt N/C N/C Soft glow
* LED_SIGNAL 3 In a signal handler N/C N/C Soft glow
* LED_ASSERTION 3 An assertion failed N/C N/C Soft glow
* LED_PANIC 3 The system has crashed N/C N/C 2Hz Flashing
* LED_IDLE --- MCU is is sleep mode Not used
*
* LED1 is illuminated by driving the output pins to a high value
* LED3 and LED 4 are illuminated by taking the output to ground.
*
****************************************************************************/
#ifdef CONFIG_ARCH_LEDS
void board_led_off(int led)
{
switch (led)
{
case 0:
case 1:
case 2:
break;
case 3:
a1x_pio_write(PIO_LED4, true);
break;
}
}
#endif
/************************************************************************************
* Name: a1x_setled and a1x_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 a1x_setled(int led, bool ledon)
{
switch (led)
{
case BOARD_LED1:
a1x_pio_write(PIO_LED1, ledon);
break;
case BOARD_LED3:
a1x_pio_write(PIO_LED3, !ledon);
break;
#ifndef CONFIG_ARCH_LEDS
case BOARD_LED4:
a1x_pio_write(PIO_LED4, !ledon);
break;
#endif
}
}
void a1x_setleds(uint8_t ledset)
{
a1x_setled(BOARD_LED1, (ledset & BOARD_LED1) != 0);
a1x_setled(BOARD_LED3, (ledset & BOARD_LED3) != 0);
#ifndef CONFIG_ARCH_LEDS
a1x_setled(BOARD_LED4, (ledset & BOARD_LED4) != 0);
#endif
}
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