rusefi/firmware/hw_layer/ports/stm32/stm32_pins.cpp

91 lines
1.6 KiB
C++

/**
* @file stm32_pins.cpp
* @brief STM32-compatible GPIO code
*
* @date Jun 02, 2019
* @author Andrey Belomutskiy, (c) 2012-2020
*/
#include "pch.h"
#include "smart_gpio.h"
#if EFI_GPIO_HARDWARE
static ioportid_t ports[] = {GPIOA,
GPIOB,
GPIOC,
GPIOD,
#if STM32_HAS_GPIOE
GPIOE,
#else
nullptr,
#endif /* STM32_HAS_GPIOE */
#if STM32_HAS_GPIOF
GPIOF,
#else
nullptr,
#endif /* STM32_HAS_GPIOF */
#if STM32_HAS_GPIOG
GPIOG,
#else
nullptr,
#endif /* STM32_HAS_GPIOG */
#if STM32_HAS_GPIOH
GPIOH,
#else
nullptr,
#endif /* STM32_HAS_GPIOH */
#if STM32_HAS_GPIOI
GPIOI,
#else
nullptr,
#endif /* STM32_HAS_GPIOI */
#if STM32_HAS_GPIOJ
GPIOJ,
#else
nullptr,
#endif /* STM32_HAS_GPIOJ */
#if STM32_HAS_GPIOK
GPIOK,
#else
nullptr,
#endif /* STM32_HAS_GPIOK */
};
ioportid_t * getGpioPorts() {
return ports;
}
/**
* Parse string representation of physical pin into Gpio ordinal.
*
* @return Gpio::Unassigned for "none", Gpio::Invalid for invalid entry
*/
brain_pin_e parseBrainPin(const char *str) {
if (strEqual(str, "none"))
return Gpio::Unassigned;
// todo: create method toLowerCase?
if (str[0] != 'p' && str[0] != 'P') {
return Gpio::Invalid;
}
char port = str[1];
brain_pin_e basePin;
if (port >= 'a' && port <= 'z') {
basePin = Gpio::A0 + PORT_SIZE * (port - 'a');
} else if (port >= 'A' && port <= 'Z') {
basePin = Gpio::A0 + PORT_SIZE * (port - 'A');
} else {
return Gpio::Invalid;
}
const char *pinStr = str + 2;
int pin = atoi(pinStr);
return (brain_pin_e)(basePin + pin);
}
unsigned int getBrainPinOnchipNum(void) {
return BRAIN_PIN_ONCHIP_PINS;
}
#endif /* EFI_GPIO_HARDWARE */