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boards/raspberrypi-pico: Add autoleds and userleds support
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boards/arm/rp2040/raspberrypi-pico/src/rp2040_autoleds.c
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| /**************************************************************************** | ||
| * boards/arm/rp2040/raspberrypi-pico/src/rp2040_autoleds.c | ||
| * | ||
| * Licensed to the Apache Software Foundation (ASF) under one or more | ||
| * contributor license agreements. See the NOTICE file distributed with | ||
| * this work for additional information regarding copyright ownership. The | ||
| * ASF licenses this file to you under the Apache License, Version 2.0 (the | ||
| * "License"); you may not use this file except in compliance with the | ||
| * License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT | ||
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the | ||
| * License for the specific language governing permissions and limitations | ||
| * under the License. | ||
| * | ||
| ****************************************************************************/ | ||
|
|
||
| /* There are four LED status indicators located on the EVK Board. The | ||
| * functions of these LEDs include: | ||
| * | ||
| * - Main Power Supply(D3) | ||
| * Green: DC 5V main supply is normal. | ||
| * Red: J2 input voltage is over 5.6V. | ||
| * Off: The board is not powered. | ||
| * - Reset RED LED(D15) | ||
| * - OpenSDA LED(D16) | ||
| * - USER LED(D18) | ||
| * | ||
| * Only a single LED, D18, is under software control. | ||
| * | ||
| * This LED is 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/rp2040_autoleds.c. The LED is used to encode | ||
| * OS-related events as follows: | ||
| * | ||
| * -------------------- ----------------------- ------ | ||
| * SYMBOL Meaning LED | ||
| * -------------------- ----------------------- ------ | ||
| * | ||
| * LED_STARTED 0 NuttX has been started OFF | ||
| * LED_HEAPALLOCATE 0 Heap has been allocated OFF | ||
| * LED_IRQSENABLED 0 Interrupts enabled OFF | ||
| * LED_STACKCREATED 1 Idle stack created ON | ||
| * LED_INIRQ 2 In an interrupt N/C | ||
| * LED_SIGNAL 2 In a signal handler N/C | ||
| * LED_ASSERTION 2 An assertion failed N/C | ||
| * LED_PANIC 3 The system has crashed FLASH | ||
| * LED_IDLE Not used | ||
| * | ||
| * Thus if the LED is statically on, NuttX has successfully booted and is, | ||
| * apparently, running normally. If the LED is flashing at approximately | ||
| * 2Hz, then a fatal error has been detected and the system has halted. | ||
| */ | ||
|
|
||
| /**************************************************************************** | ||
| * Included Files | ||
| ****************************************************************************/ | ||
|
|
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| #include <nuttx/config.h> | ||
| #include <nuttx/board.h> | ||
| #include <arch/board/board.h> | ||
|
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| #include "arm_internal.h" | ||
| #include "chip.h" | ||
| #include "rp2040_gpio.h" | ||
|
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| #include "rp2040_pico.h" | ||
|
|
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| #ifdef CONFIG_ARCH_LEDS | ||
|
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| /**************************************************************************** | ||
| * Public Functions | ||
| ****************************************************************************/ | ||
|
|
||
| /**************************************************************************** | ||
| * Name: rp2040_autoled_initialize | ||
| * | ||
| * Description: | ||
| * Initialize NuttX-controlled LED logic | ||
| * | ||
| * Input Parameters: | ||
| * None | ||
| * | ||
| * Returned Value: | ||
| * None | ||
| * | ||
| ****************************************************************************/ | ||
|
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| void board_autoled_initialize(void) | ||
| { | ||
| /* Configure LED GPIO for output */ | ||
|
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| rp2040_gpio_init(GPIO_LED1); | ||
| rp2040_gpio_setdir(GPIO_LED1, true); | ||
| } | ||
|
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| /**************************************************************************** | ||
| * Name: board_autoled_on | ||
| * | ||
| * Description: | ||
| * Turn on the "logical" LED state | ||
| * | ||
| * Input Parameters: | ||
| * led - Identifies the "logical" LED state (see definitions in | ||
| * include/board.h) | ||
| * | ||
| * Returned Value: | ||
| * None | ||
| * | ||
| ****************************************************************************/ | ||
|
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| void board_autoled_on(int led) | ||
| { | ||
| bool ledon = true; | ||
|
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| switch (led) | ||
| { | ||
| case 0: /* LED Off */ | ||
| ledon = false; | ||
| break; | ||
|
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| case 2: /* LED No change */ | ||
| return; | ||
|
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| case 1: /* LED On */ | ||
| case 3: /* LED On */ | ||
| break; | ||
| } | ||
|
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| rp2040_gpio_put(GPIO_LED1, ledon); /* High illuminates */ | ||
| } | ||
|
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| /**************************************************************************** | ||
| * Name: board_autoled_off | ||
| * | ||
| * Description: | ||
| * Turn off the "logical" LED state | ||
| * | ||
| * Input Parameters: | ||
| * led - Identifies the "logical" LED state (see definitions in | ||
| * include/board.h) | ||
| * | ||
| * Returned Value: | ||
| * None | ||
| * | ||
| ****************************************************************************/ | ||
|
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| void board_autoled_off(int led) | ||
| { | ||
| switch (led) | ||
| { | ||
| case 0: /* LED Off */ | ||
| case 1: /* LED Off */ | ||
| case 3: /* LED Off */ | ||
| break; | ||
|
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| case 2: /* LED No change */ | ||
| return; | ||
| } | ||
|
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| rp2040_gpio_put(GPIO_LED1, false); /* High illuminates */ | ||
| } | ||
|
|
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| #endif /* CONFIG_ARCH_LEDS */ |
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