389ff92cc1
* Makefile, Scripts: new linter * About: remove ID from IC * Firmware: remove double define for DIVC/DIVR * Scripts: check folder names too. Docker: replace syntax check with make lint. * Reformat Sources and Migrate to new file naming convention * Docker: symlink clang-format-12 to clang-format * Add coding style guide
190 lines
6.9 KiB
C
190 lines
6.9 KiB
C
#include <furi_hal_gpio.h>
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#include <stddef.h>
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#include <assert.h>
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#define GET_SYSCFG_EXTI_PORT(gpio) \
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(((gpio) == (GPIOA)) ? LL_SYSCFG_EXTI_PORTA : \
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((gpio) == (GPIOB)) ? LL_SYSCFG_EXTI_PORTB : \
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((gpio) == (GPIOC)) ? LL_SYSCFG_EXTI_PORTC : \
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((gpio) == (GPIOD)) ? LL_SYSCFG_EXTI_PORTD : \
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((gpio) == (GPIOE)) ? LL_SYSCFG_EXTI_PORTE : \
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LL_SYSCFG_EXTI_PORTH)
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#define GPIO_PIN_MAP(pin, prefix) \
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(((pin) == (LL_GPIO_PIN_0)) ? prefix##0 : \
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((pin) == (LL_GPIO_PIN_1)) ? prefix##1 : \
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((pin) == (LL_GPIO_PIN_2)) ? prefix##2 : \
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((pin) == (LL_GPIO_PIN_3)) ? prefix##3 : \
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((pin) == (LL_GPIO_PIN_4)) ? prefix##4 : \
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((pin) == (LL_GPIO_PIN_5)) ? prefix##5 : \
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((pin) == (LL_GPIO_PIN_6)) ? prefix##6 : \
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((pin) == (LL_GPIO_PIN_7)) ? prefix##7 : \
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((pin) == (LL_GPIO_PIN_8)) ? prefix##8 : \
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((pin) == (LL_GPIO_PIN_9)) ? prefix##9 : \
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((pin) == (LL_GPIO_PIN_10)) ? prefix##10 : \
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((pin) == (LL_GPIO_PIN_11)) ? prefix##11 : \
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((pin) == (LL_GPIO_PIN_12)) ? prefix##12 : \
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((pin) == (LL_GPIO_PIN_13)) ? prefix##13 : \
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((pin) == (LL_GPIO_PIN_14)) ? prefix##14 : \
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prefix##15)
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#define GET_SYSCFG_EXTI_LINE(pin) GPIO_PIN_MAP(pin, LL_SYSCFG_EXTI_LINE)
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#define GET_EXTI_LINE(pin) GPIO_PIN_MAP(pin, LL_EXTI_LINE_)
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static volatile GpioInterrupt gpio_interrupt[GPIO_NUMBER];
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static uint8_t hal_gpio_get_pin_num(const GpioPin* gpio) {
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uint8_t pin_num = 0;
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for(pin_num = 0; pin_num < GPIO_NUMBER; pin_num++) {
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if(gpio->pin & (1 << pin_num)) break;
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}
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return pin_num;
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}
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void hal_gpio_init_simple(const GpioPin* gpio, const GpioMode mode) {
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hal_gpio_init(gpio, mode, GpioPullNo, GpioSpeedLow);
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}
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void hal_gpio_init(
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const GpioPin* gpio,
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const GpioMode mode,
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const GpioPull pull,
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const GpioSpeed speed) {
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// we cannot set alternate mode in this function
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assert(mode != GpioModeAltFunctionPushPull);
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assert(mode != GpioModeAltFunctionOpenDrain);
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hal_gpio_init_ex(gpio, mode, pull, speed, GpioAltFnUnused);
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}
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void hal_gpio_init_ex(
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const GpioPin* gpio,
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const GpioMode mode,
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const GpioPull pull,
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const GpioSpeed speed,
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const GpioAltFn alt_fn) {
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uint32_t sys_exti_port = GET_SYSCFG_EXTI_PORT(gpio->port);
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uint32_t sys_exti_line = GET_SYSCFG_EXTI_LINE(gpio->pin);
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uint32_t exti_line = GET_EXTI_LINE(gpio->pin);
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// Configure gpio with interrupts disabled
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__disable_irq();
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// Set gpio speed
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if(speed == GpioSpeedLow) {
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LL_GPIO_SetPinSpeed(gpio->port, gpio->pin, LL_GPIO_SPEED_FREQ_LOW);
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} else if(speed == GpioSpeedMedium) {
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LL_GPIO_SetPinSpeed(gpio->port, gpio->pin, LL_GPIO_SPEED_FREQ_MEDIUM);
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} else if(speed == GpioSpeedHigh) {
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LL_GPIO_SetPinSpeed(gpio->port, gpio->pin, LL_GPIO_SPEED_FREQ_HIGH);
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} else {
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LL_GPIO_SetPinSpeed(gpio->port, gpio->pin, LL_GPIO_SPEED_FREQ_VERY_HIGH);
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}
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// Set gpio pull mode
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if(pull == GpioPullNo) {
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LL_GPIO_SetPinPull(gpio->port, gpio->pin, LL_GPIO_PULL_NO);
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} else if(pull == GpioPullUp) {
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LL_GPIO_SetPinPull(gpio->port, gpio->pin, LL_GPIO_PULL_UP);
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} else {
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LL_GPIO_SetPinPull(gpio->port, gpio->pin, LL_GPIO_PULL_DOWN);
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}
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// Set gpio mode
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if(mode >= GpioModeInterruptRise) {
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// Set pin in interrupt mode
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LL_GPIO_SetPinMode(gpio->port, gpio->pin, LL_GPIO_MODE_INPUT);
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LL_SYSCFG_SetEXTISource(sys_exti_port, sys_exti_line);
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if(mode == GpioModeInterruptRise || mode == GpioModeInterruptRiseFall) {
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LL_EXTI_EnableIT_0_31(exti_line);
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LL_EXTI_EnableRisingTrig_0_31(exti_line);
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}
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if(mode == GpioModeInterruptFall || mode == GpioModeInterruptRiseFall) {
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LL_EXTI_EnableIT_0_31(exti_line);
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LL_EXTI_EnableFallingTrig_0_31(exti_line);
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}
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if(mode == GpioModeEventRise || mode == GpioModeInterruptRiseFall) {
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LL_EXTI_EnableEvent_0_31(exti_line);
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LL_EXTI_EnableRisingTrig_0_31(exti_line);
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}
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if(mode == GpioModeEventFall || mode == GpioModeInterruptRiseFall) {
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LL_EXTI_EnableEvent_0_31(exti_line);
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LL_EXTI_EnableFallingTrig_0_31(exti_line);
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}
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} else {
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// Disable interrupt if it was set
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if(LL_SYSCFG_GetEXTISource(sys_exti_line) == sys_exti_port &&
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LL_EXTI_IsEnabledIT_0_31(exti_line)) {
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LL_EXTI_DisableIT_0_31(exti_line);
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LL_EXTI_DisableRisingTrig_0_31(exti_line);
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LL_EXTI_DisableFallingTrig_0_31(exti_line);
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}
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// Set not interrupt pin modes
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if(mode == GpioModeInput) {
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LL_GPIO_SetPinMode(gpio->port, gpio->pin, LL_GPIO_MODE_INPUT);
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} else if(mode == GpioModeOutputPushPull || mode == GpioModeAltFunctionPushPull) {
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LL_GPIO_SetPinMode(gpio->port, gpio->pin, LL_GPIO_MODE_OUTPUT);
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LL_GPIO_SetPinOutputType(gpio->port, gpio->pin, LL_GPIO_OUTPUT_PUSHPULL);
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} else if(mode == GpioModeOutputOpenDrain || mode == GpioModeAltFunctionOpenDrain) {
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LL_GPIO_SetPinMode(gpio->port, gpio->pin, LL_GPIO_MODE_OUTPUT);
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LL_GPIO_SetPinOutputType(gpio->port, gpio->pin, LL_GPIO_OUTPUT_OPENDRAIN);
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} else if(mode == GpioModeAnalog) {
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LL_GPIO_SetPinMode(gpio->port, gpio->pin, LL_GPIO_MODE_ANALOG);
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}
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}
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if(mode == GpioModeAltFunctionPushPull || mode == GpioModeAltFunctionOpenDrain) {
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// enable alternate mode
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LL_GPIO_SetPinMode(gpio->port, gpio->pin, LL_GPIO_MODE_ALTERNATE);
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// set alternate function
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if(hal_gpio_get_pin_num(gpio) < 8) {
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LL_GPIO_SetAFPin_0_7(gpio->port, gpio->pin, alt_fn);
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} else {
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LL_GPIO_SetAFPin_8_15(gpio->port, gpio->pin, alt_fn);
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}
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}
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__enable_irq();
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}
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void hal_gpio_add_int_callback(const GpioPin* gpio, GpioExtiCallback cb, void* ctx) {
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assert(gpio);
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assert(cb);
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__disable_irq();
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uint8_t pin_num = hal_gpio_get_pin_num(gpio);
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gpio_interrupt[pin_num].callback = cb;
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gpio_interrupt[pin_num].context = ctx;
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gpio_interrupt[pin_num].ready = true;
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__enable_irq();
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}
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void hal_gpio_enable_int_callback(const GpioPin* gpio) {
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assert(gpio);
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__disable_irq();
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uint8_t pin_num = hal_gpio_get_pin_num(gpio);
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if(gpio_interrupt[pin_num].callback) {
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gpio_interrupt[pin_num].ready = true;
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}
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__enable_irq();
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}
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void hal_gpio_disable_int_callback(const GpioPin* gpio) {
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assert(gpio);
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__disable_irq();
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uint8_t pin_num = hal_gpio_get_pin_num(gpio);
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gpio_interrupt[pin_num].ready = false;
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__enable_irq();
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}
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void hal_gpio_remove_int_callback(const GpioPin* gpio) {
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assert(gpio);
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__disable_irq();
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uint8_t pin_num = hal_gpio_get_pin_num(gpio);
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gpio_interrupt[pin_num].callback = NULL;
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gpio_interrupt[pin_num].context = NULL;
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gpio_interrupt[pin_num].ready = false;
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__enable_irq();
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}
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