Marcelo Aquino
4c31e22d6f
- Restructure SPi files for linux and RPi - Update RPi revision detection (#826)
114 lines
3.1 KiB
C++
114 lines
3.1 KiB
C++
/*
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* The MySensors Arduino library handles the wireless radio link and protocol
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* between your home built sensors/actuators and HA controller of choice.
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* The sensors forms a self healing radio network with optional repeaters. Each
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* repeater and gateway builds a routing tables in EEPROM which keeps track of the
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* network topology allowing messages to be routed to nodes.
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*
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* Created by Henrik Ekblad <henrik.ekblad@mysensors.org>
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* Copyright (C) 2013-2017 Sensnology AB
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* Full contributor list: https://github.com/mysensors/Arduino/graphs/contributors
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*
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* Documentation: http://www.mysensors.org
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* Support Forum: http://forum.mysensors.org
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*/
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#include "RPi.h"
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#include <stdlib.h>
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#include <string.h>
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#include "log.h"
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const static int pin_to_gpio_rev1[41] = {-1, -1, -1, 0, -1, 1, -1, 4, 14, -1, 15, 17, 18, 21, -1, 22, 23, -1, 24, 10, -1, 9, 25, 11, 8, -1, 7, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 };
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const static int pin_to_gpio_rev2[41] = {-1, -1, -1, 2, -1, 3, -1, 4, 14, -1, 15, 17, 18, 27, -1, 22, 23, -1, 24, 10, -1, 9, 25, 11, 8, -1, 7, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 };
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const static int pin_to_gpio_rev3[41] = {-1, -1, -1, 2, -1, 3, -1, 4, 14, -1, 15, 17, 18, 27, -1, 22, 23, -1, 24, 10, -1, 9, 25, 11, 8, -1, 7, -1, -1, 5, -1, 6, 12, 13, -1, 19, 16, 26, 20, -1, 21 };
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// Declare a single default instance
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RPiClass RPi = RPiClass();
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const int* RPiClass::pin_to_gpio = NULL;
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#ifndef RPI_TYPE
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#error Raspberry Pi type not set
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#endif
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const char* RPiClass::type = RPI_TYPE;
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void RPiClass::pinMode(uint8_t physPin, uint8_t mode)
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{
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uint8_t gpioPin;
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if (physToGPIO(physPin, &gpioPin) != 0) {
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logError("pinMode: invalid pin: %d\n", physPin);
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return;
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}
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BCM.pinMode(gpioPin, mode);
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}
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void RPiClass::digitalWrite(uint8_t physPin, uint8_t value)
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{
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uint8_t gpioPin;
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if (physToGPIO(physPin, &gpioPin) != 0) {
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logError("digitalWrite: invalid pin: %d\n", physPin);
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return;
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}
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BCM.digitalWrite(gpioPin, value);
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}
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uint8_t RPiClass::digitalRead(uint8_t physPin)
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{
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uint8_t gpioPin;
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if (physToGPIO(physPin, &gpioPin) != 0) {
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logError("digitalRead: invalid pin: %d\n", physPin);
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return 0;
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}
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return BCM.digitalRead(gpioPin);
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}
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uint8_t RPiClass::digitalPinToInterrupt(uint8_t physPin)
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{
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uint8_t gpioPin;
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if (physToGPIO(physPin, &gpioPin) != 0) {
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logError("digitalPinToInterrupt: invalid pin: %d\n", physPin);
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return 0;
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}
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return gpioPin;
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}
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int RPiClass::physToGPIO(uint8_t physPin, uint8_t *gpio)
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{
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if (pin_to_gpio == NULL) {
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if (strncmp(type,"rpi1", 4) == 0) {
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pin_to_gpio = &pin_to_gpio_rev1[0];
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} else if (strncmp(type,"rpi2", 4) == 0) {
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pin_to_gpio = &pin_to_gpio_rev2[0];
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} else if (strncmp(type,"rpi3", 4) == 0) {
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pin_to_gpio = &pin_to_gpio_rev3[0];
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} else {
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logError("Invalid Raspberry Pi type!\n");
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exit(1);
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}
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}
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if (gpio == NULL || physPin > 40) {
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return -1;
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}
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int pin = *(pin_to_gpio+physPin);
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if (pin == -1) {
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return -1;
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} else {
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*gpio = pin;
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}
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return 0;
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}
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