1727e47d2e
Squashed commit of the following:
Author: Gregory Nutt <gnutt@nuttx.org>
Many small changes related to coding style.
Author: Petro Karashchenko <petro.karashchenko@gmail.com>
configs/beaglebone-black: Adds initial support for the BeagleBone Black board.
arch/arm/src/am335x: Adds initial support for the TI AM355x family.
254 lines
9.2 KiB
C
254 lines
9.2 KiB
C
/****************************************************************************
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* configs/beaglebone-black/src/am335x_leds.c
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*
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* Copyright (C) 2018 Petro Karashchenko. All rights reserved.
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* Author: Petro Karashchenko <petro.karashchenko@gmail.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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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 "up_arch.h"
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#include "up_internal.h"
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#include "beaglebone-black.h"
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/* The beaglebone black has four user LEDs; all four can be controlled from
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* software. All are tied to ground and, hence, illuminated by driving the
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* output pins to a high value:
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*
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* 1. LED0 GPMC_A5 GPMC_A5/GMII2_TXD0/RGMII2_TD0/RMII2_TXD0/GPMC_A21/
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* PR1_MII1_RXD3/eQEP1B_IN/GPIO1_21
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* 2. LED1 GPMC_A6 GPMC_A6/GMII2_TXCLK/RGMII2_TCLK/MMC2_DAT4/GPMC_A22/
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* PR1_MII1_RXD2/eQEP1_INDEX/GPIO1_22
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* 3. LED2 GPMC_A7 GPMC_A7/GMII2_RXCLK/RGMII2_RCLK/MMC2_DAT5/GPMC_A23/
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* PR1_MII1_RXD1/eQEP1_STROBE/GPIO1_23
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* 4. LED3 GPMC_A8 GPMC_A8/GMII2_RXD3/RGMII2_RD3/MMC2_DAT6/GPMC_A24/
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* PR1_MII1_RXD0/MCASP0_ACLKX/GPIO1_24
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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/am335x_leds.c. The LEDs are used to encode OS-
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* 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, LED0 and 1 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: am335x_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 am335x_led_initialize(void)
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{
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am335x_gpio_config(GPIO_LED0);
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am335x_gpio_config(GPIO_LED1);
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am335x_gpio_config(GPIO_LED2);
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am335x_gpio_config(GPIO_LED3);
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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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am335x_gpio_write(GPIO_LED0, true);
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am335x_gpio_write(GPIO_LED1, true);
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am335x_gpio_write(GPIO_LED3, true);
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break;
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case 1:
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am335x_gpio_write(GPIO_LED0, false);
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am335x_gpio_write(GPIO_LED1, false);
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am335x_gpio_write(GPIO_LED3, true);
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break;
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case 2:
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am335x_gpio_write(GPIO_LED0, false);
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am335x_gpio_write(GPIO_LED1, true);
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am335x_gpio_write(GPIO_LED3, true);
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break;
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case 3:
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am335x_gpio_write(GPIO_LED3, 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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am335x_gpio_write(GPIO_LED3, 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 LEDs up
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* until the completion of boot. The it will continue to control LED1; LED0 is
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* available for application use.
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*
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* If CONFIG_ARCH_LEDS is not defined, then both LEDs are available for application
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* use.
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*
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************************************************************************************/
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void board_userled_initialize(void)
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{
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/* Initialization already performed in am335x_led_initialize */
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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 USER_LED0:
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am335x_gpio_write(GPIO_LED0, ledon);
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break;
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case USER_LED1:
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am335x_gpio_write(GPIO_LED1, ledon);
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break;
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#ifndef CONFIG_ARCH_LEDS
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case USER_LED3:
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am335x_gpio_write(GPIO_LED3, 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(uint8_t ledset)
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{
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board_userled(USER_LED0, (ledset & USER_LED0) != 0);
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board_userled(USER_LED1, (ledset & USER_LED1) != 0);
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#ifndef CONFIG_ARCH_LEDS
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board_userled(USER_LED3, (ledset & USER_LED3) != 0);
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#endif
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}
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