rusefi/firmware/hw_layer/hardware.h

/*
 * @file hardware.h
 *
 * @date May 27, 2013
 * @author Andrey Belomutskiy, (c) 2012-2020
 */

#pragma once

// 'startHardware' is invoked both on boot and configuration change
void startHardware();
void stopHardware();

#if HAL_USE_SPI

// Peripherial Clock 42MHz SPI2 SPI3
// Peripherial Clock 84MHz SPI1                                SPI1        SPI2/3
//  42 MHz      21 MHZ
#define SPI_BaudRatePrescaler_2         ((uint16_t)0x0000)
//  21 MHz      10.5 MHz
#define SPI_BaudRatePrescaler_4         ((uint16_t)0x0008)
//  10.5 MHz    5.25 MHz
#define SPI_BaudRatePrescaler_8         ((uint16_t)0x0010)
//  5.25 MHz    2.626 MHz
#define SPI_BaudRatePrescaler_16        ((uint16_t)0x0018)
//  2.626 MHz   1.3125 MHz
#define SPI_BaudRatePrescaler_32        ((uint16_t)0x0020)
//  1.3125 MHz  656.25 KHz
#define SPI_BaudRatePrescaler_64        ((uint16_t)0x0028)
//  656.25 KHz  328.125 KHz
#define SPI_BaudRatePrescaler_128       ((uint16_t)0x0030)
//  328.125 KHz 164.06 KHz
#define SPI_BaudRatePrescaler_256       ((uint16_t)0x0038)

int getSpiPrescaler(spi_speed_e speed, spi_device_e device);

SPIDriver * getSpiDevice(spi_device_e spiDevice);
void turnOnSpi(spi_device_e device);
void lockSpi(spi_device_e device);
void unlockSpi(spi_device_e device);
brain_pin_e getMisoPin(spi_device_e device);
brain_pin_e getMosiPin(spi_device_e device);
brain_pin_e getSckPin(spi_device_e device);

void printSpiConfig(const char *msg, spi_device_e device);

#endif /* HAL_USE_SPI */

void applyNewHardwareSettings();

// Initialize hardware that doesn't require configuration to be loaded
void initHardwareNoConfig();

// Initialize hardware with configuration loaded
void initHardware();

void checkLastResetCause();

// todo: can we do simpler here? move conditional compilation into debounce.h?
#if EFI_PROD_CODE
#include "debounce.h"
#else
class ButtonDebounce;
#endif /* EFI_PROD_CODE */

void setBor(int borValue);