238 lines
8.1 KiB
C
238 lines
8.1 KiB
C
/****************************************************************************
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* boards/arm/a1x/pcduino-a10/src/a1x_leds.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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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 <nuttx/board.h>
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#include <arch/board/board.h>
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#include "chip.h"
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#include "arm_internal.h"
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#include "pcduino_a10.h"
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/* The pcDuino v1 has four green LEDs; three can be controlled from software.
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* Two are tied to ground and, hence, illuminated by driving the output pins
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* to a high value:
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*
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* 1. LED1 SPI0_CLK SPI0_CLK/UART5_RX/EINT23/PI11
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* 2. LED5 IPSOUT From the PMU (not controllable by software)
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*
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* And two are pull high and, hence, illuminated by grounding the output:
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*
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* 3. LED3 RX_LED LCD1_D16/ATAD12/KP_IN6/SMC_DET/EINT16/CSI1_D16/PH16
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* 4. LED4 TX_LED LCD1_D15/ATAD11/KP_IN5/SMC_VPPPP/EINT15/CSI1_D15/PH15
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* These LEDs are not used by the board port unless CONFIG_ARCH_LEDS is
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* defined. In that case, the usage by the board port is defined in
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* include/board.h and src/stm32_leds.c.
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* The LEDs are used to encode OS-related events as follows:
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*
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* SYMBOL Meaning LED state
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* LED1 LED3 LED4
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* ----------------- ----------------------- ---- ---- ---- ------------
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* LED_STARTED NuttX has been started ON OFF OFF
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* LED_HEAPALLOCATE Heap has been allocated OFF ON OFF
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* LED_IRQSENABLED Interrupts enabled ON ON OFF
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* LED_STACKCREATED Idle stack created ON ON OFF
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* LED_INIRQ In an interrupt N/C N/C Soft glow
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* LED_SIGNAL In a signal handler N/C N/C Soft glow
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* LED_ASSERTION An assertion failed N/C N/C Soft glow
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* LED_PANIC The system has crashed N/C N/C 2Hz Flashing
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* LED_IDLE MCU is is sleep mode Not used
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*
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* After booting, LED1 and 3 are not longer used by the system and can be
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* used for other purposes by the application (Of course, all LEDs are
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* available to the application if CONFIG_ARCH_LEDS is not defined.
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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: a1x_led_initialize
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*
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* Description:
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* Configure LEDs. LEDs are left in the OFF state.
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*
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****************************************************************************/
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void a1x_led_initialize(void)
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{
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a1x_pio_config(PIO_LED1);
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a1x_pio_config(PIO_LED3);
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a1x_pio_config(PIO_LED4);
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}
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/****************************************************************************
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* Name: board_autoled_on
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*
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* Description:
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* Select the "logical" ON state:
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*
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* SYMBOL Value Meaning LED state
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* LED1 LED3 LED4
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* ----------------- ----- ----------------------- ---- ---- ------------
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* LED_STARTED 0 NuttX has been started ON OFF OFF
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* LED_HEAPALLOCATE 1 Heap has been allocated OFF ON OFF
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* LED_IRQSENABLED 2 Interrupts enabled ON ON OFF
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* LED_STACKCREATED 2 Idle stack created ON ON OFF
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* LED_INIRQ 3 In an interrupt N/C N/C Soft glow
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* LED_SIGNAL 3 In a signal handler N/C N/C Soft glow
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* LED_ASSERTION 3 An assertion failed N/C N/C Soft glow
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* LED_PANIC 3 The system has crashed N/C N/C 2Hz Flashing
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* LED_IDLE --- MCU is is sleep mode Not used
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*
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* LED1 is illuminated by driving the output pins to a high value
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* LED3 and LED 4 are illuminated by taking the output to ground.
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*
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****************************************************************************/
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#ifdef CONFIG_ARCH_LEDS
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void board_autoled_on(int led)
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{
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switch (led)
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{
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case 0:
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a1x_pio_write(PIO_LED1, true);
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a1x_pio_write(PIO_LED3, true);
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a1x_pio_write(PIO_LED4, true);
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break;
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case 1:
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a1x_pio_write(PIO_LED1, false);
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a1x_pio_write(PIO_LED3, false);
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a1x_pio_write(PIO_LED4, true);
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break;
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case 2:
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a1x_pio_write(PIO_LED1, false);
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a1x_pio_write(PIO_LED3, true);
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a1x_pio_write(PIO_LED4, true);
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break;
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case 3:
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a1x_pio_write(PIO_LED4, false);
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break;
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}
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}
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#endif
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/****************************************************************************
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* Name: board_autoled_off
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*
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* Description:
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* Select the "logical" OFF state:
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*
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* SYMBOL Value Meaning LED state
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* LED1 LED3 LED4
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* ----------------- ----- ----------------------- ---- ---- ------------
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* LED_STARTED 0 NuttX has been started ON OFF OFF
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* LED_HEAPALLOCATE 1 Heap has been allocated OFF ON OFF
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* LED_IRQSENABLED 2 Interrupts enabled ON ON OFF
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* LED_STACKCREATED 2 Idle stack created ON ON OFF
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* LED_INIRQ 3 In an interrupt N/C N/C Soft glow
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* LED_SIGNAL 3 In a signal handler N/C N/C Soft glow
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* LED_ASSERTION 3 An assertion failed N/C N/C Soft glow
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* LED_PANIC 3 The system has crashed N/C N/C 2Hz Flashing
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* LED_IDLE --- MCU is is sleep mode Not used
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*
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* LED1 is illuminated by driving the output pins to a high value
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* LED3 and LED 4 are illuminated by taking the output to ground.
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*
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****************************************************************************/
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#ifdef CONFIG_ARCH_LEDS
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void board_autoled_off(int led)
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{
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switch (led)
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{
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case 0:
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case 1:
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case 2:
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break;
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case 3:
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a1x_pio_write(PIO_LED4, true);
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break;
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}
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}
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#endif
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/****************************************************************************
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* Name: board_userled_initialize, board_userled, and board_userled_all
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*
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* Description:
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* These interfaces allow user control of the board LEDs.
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*
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* If CONFIG_ARCH_LEDS is defined, then NuttX will control both on-board
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* LEDs up until the completion of boot.
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* The it will continue to control LED2; LED1 is available for application
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* use.
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*
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* If CONFIG_ARCH_LEDS is not defined, then both LEDs are available for
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* application use.
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*
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****************************************************************************/
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uint32_t board_userled_initialize(void)
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{
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/* Initialization already performed in a1x_led_initialize */
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return BOARD_NLEDS;
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}
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void board_userled(int led, bool ledon)
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{
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switch (led)
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{
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case BOARD_LED1:
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a1x_pio_write(PIO_LED1, ledon);
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break;
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case BOARD_LED3:
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a1x_pio_write(PIO_LED3, !ledon);
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break;
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#ifndef CONFIG_ARCH_LEDS
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case BOARD_LED4:
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a1x_pio_write(PIO_LED4, !ledon);
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break;
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#endif
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}
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}
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void board_userled_all(uint32_t ledset)
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{
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board_userled(BOARD_LED1, (ledset & BOARD_LED1) != 0);
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board_userled(BOARD_LED3, (ledset & BOARD_LED3) != 0);
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#ifndef CONFIG_ARCH_LEDS
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board_userled(BOARD_LED4, (ledset & BOARD_LED4) != 0);
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#endif
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}
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