flipperzero-firmware/bootloader/targets/f7/furi_hal/furi_hal_gpio.c
Nikolay Minaylov 2f3ea9494e
HAL to LL migration: GPIO, HSEM, AES (#1069)
* gpio, hsem, crypto: switch from HAL to LL/registers
* Moved GPIO initialization to furi_hal
* More HAL removed
* All HAL modules disabled
* HAL is finally removed
* hal_gpio -> furi_hal_gpio, main.h removed
* Bootloader build fix
* RTOS config moved to freertos-glue
* delay -> furi_hal_delay

Co-authored-by: あく <alleteam@gmail.com>
2022-03-30 18:23:40 +03:00

215 lines
7.5 KiB
C

#include <furi_hal_gpio.h>
#include <stddef.h>
#include <assert.h>
#define GET_SYSCFG_EXTI_PORT(gpio) \
(((gpio) == (GPIOA)) ? LL_SYSCFG_EXTI_PORTA : \
((gpio) == (GPIOB)) ? LL_SYSCFG_EXTI_PORTB : \
((gpio) == (GPIOC)) ? LL_SYSCFG_EXTI_PORTC : \
((gpio) == (GPIOD)) ? LL_SYSCFG_EXTI_PORTD : \
((gpio) == (GPIOE)) ? LL_SYSCFG_EXTI_PORTE : \
LL_SYSCFG_EXTI_PORTH)
#define GPIO_PIN_MAP(pin, prefix) \
(((pin) == (LL_GPIO_PIN_0)) ? prefix##0 : \
((pin) == (LL_GPIO_PIN_1)) ? prefix##1 : \
((pin) == (LL_GPIO_PIN_2)) ? prefix##2 : \
((pin) == (LL_GPIO_PIN_3)) ? prefix##3 : \
((pin) == (LL_GPIO_PIN_4)) ? prefix##4 : \
((pin) == (LL_GPIO_PIN_5)) ? prefix##5 : \
((pin) == (LL_GPIO_PIN_6)) ? prefix##6 : \
((pin) == (LL_GPIO_PIN_7)) ? prefix##7 : \
((pin) == (LL_GPIO_PIN_8)) ? prefix##8 : \
((pin) == (LL_GPIO_PIN_9)) ? prefix##9 : \
((pin) == (LL_GPIO_PIN_10)) ? prefix##10 : \
((pin) == (LL_GPIO_PIN_11)) ? prefix##11 : \
((pin) == (LL_GPIO_PIN_12)) ? prefix##12 : \
((pin) == (LL_GPIO_PIN_13)) ? prefix##13 : \
((pin) == (LL_GPIO_PIN_14)) ? prefix##14 : \
prefix##15)
#define GET_SYSCFG_EXTI_LINE(pin) GPIO_PIN_MAP(pin, LL_SYSCFG_EXTI_LINE)
#define GET_EXTI_LINE(pin) GPIO_PIN_MAP(pin, LL_EXTI_LINE_)
static volatile GpioInterrupt gpio_interrupt[GPIO_NUMBER];
static uint8_t furi_hal_gpio_get_pin_num(const GpioPin* gpio) {
uint8_t pin_num = 0;
for(pin_num = 0; pin_num < GPIO_NUMBER; pin_num++) {
if(gpio->pin & (1 << pin_num)) break;
}
return pin_num;
}
void furi_hal_gpio_init_simple(const GpioPin* gpio, const GpioMode mode) {
furi_hal_gpio_init(gpio, mode, GpioPullNo, GpioSpeedLow);
}
void furi_hal_gpio_init(
const GpioPin* gpio,
const GpioMode mode,
const GpioPull pull,
const GpioSpeed speed) {
// we cannot set alternate mode in this function
assert(mode != GpioModeAltFunctionPushPull);
assert(mode != GpioModeAltFunctionOpenDrain);
furi_hal_gpio_init_ex(gpio, mode, pull, speed, GpioAltFnUnused);
}
void furi_hal_gpio_init_ex(
const GpioPin* gpio,
const GpioMode mode,
const GpioPull pull,
const GpioSpeed speed,
const GpioAltFn alt_fn) {
uint32_t sys_exti_port = GET_SYSCFG_EXTI_PORT(gpio->port);
uint32_t sys_exti_line = GET_SYSCFG_EXTI_LINE(gpio->pin);
uint32_t exti_line = GET_EXTI_LINE(gpio->pin);
// Configure gpio with interrupts disabled
__disable_irq();
// Set gpio speed
switch(speed) {
case GpioSpeedLow:
LL_GPIO_SetPinSpeed(gpio->port, gpio->pin, LL_GPIO_SPEED_FREQ_LOW);
break;
case GpioSpeedMedium:
LL_GPIO_SetPinSpeed(gpio->port, gpio->pin, LL_GPIO_SPEED_FREQ_MEDIUM);
break;
case GpioSpeedHigh:
LL_GPIO_SetPinSpeed(gpio->port, gpio->pin, LL_GPIO_SPEED_FREQ_HIGH);
break;
case GpioSpeedVeryHigh:
LL_GPIO_SetPinSpeed(gpio->port, gpio->pin, LL_GPIO_SPEED_FREQ_VERY_HIGH);
break;
}
// Set gpio pull mode
switch(pull) {
case GpioPullNo:
LL_GPIO_SetPinPull(gpio->port, gpio->pin, LL_GPIO_PULL_NO);
break;
case GpioPullUp:
LL_GPIO_SetPinPull(gpio->port, gpio->pin, LL_GPIO_PULL_UP);
break;
case GpioPullDown:
LL_GPIO_SetPinPull(gpio->port, gpio->pin, LL_GPIO_PULL_DOWN);
break;
}
// Set gpio mode
if(mode >= GpioModeInterruptRise) {
// Set pin in interrupt mode
LL_GPIO_SetPinMode(gpio->port, gpio->pin, LL_GPIO_MODE_INPUT);
LL_SYSCFG_SetEXTISource(sys_exti_port, sys_exti_line);
if(mode == GpioModeInterruptRise || mode == GpioModeInterruptRiseFall) {
LL_EXTI_EnableIT_0_31(exti_line);
LL_EXTI_EnableRisingTrig_0_31(exti_line);
}
if(mode == GpioModeInterruptFall || mode == GpioModeInterruptRiseFall) {
LL_EXTI_EnableIT_0_31(exti_line);
LL_EXTI_EnableFallingTrig_0_31(exti_line);
}
if(mode == GpioModeEventRise || mode == GpioModeEventRiseFall) {
LL_EXTI_EnableEvent_0_31(exti_line);
LL_EXTI_EnableRisingTrig_0_31(exti_line);
}
if(mode == GpioModeEventFall || mode == GpioModeEventRiseFall) {
LL_EXTI_EnableEvent_0_31(exti_line);
LL_EXTI_EnableFallingTrig_0_31(exti_line);
}
} else {
// Disable interrupts if set
if(LL_SYSCFG_GetEXTISource(sys_exti_line) == sys_exti_port &&
LL_EXTI_IsEnabledIT_0_31(exti_line)) {
LL_EXTI_DisableIT_0_31(exti_line);
LL_EXTI_DisableRisingTrig_0_31(exti_line);
LL_EXTI_DisableFallingTrig_0_31(exti_line);
}
// Prepare alternative part if any
if(mode == GpioModeAltFunctionPushPull || mode == GpioModeAltFunctionOpenDrain) {
// set alternate function
if(furi_hal_gpio_get_pin_num(gpio) < 8) {
LL_GPIO_SetAFPin_0_7(gpio->port, gpio->pin, alt_fn);
} else {
LL_GPIO_SetAFPin_8_15(gpio->port, gpio->pin, alt_fn);
}
}
// Set not interrupt pin modes
switch(mode) {
case GpioModeInput:
LL_GPIO_SetPinMode(gpio->port, gpio->pin, LL_GPIO_MODE_INPUT);
break;
case GpioModeOutputPushPull:
LL_GPIO_SetPinOutputType(gpio->port, gpio->pin, LL_GPIO_OUTPUT_PUSHPULL);
LL_GPIO_SetPinMode(gpio->port, gpio->pin, LL_GPIO_MODE_OUTPUT);
break;
case GpioModeAltFunctionPushPull:
LL_GPIO_SetPinOutputType(gpio->port, gpio->pin, LL_GPIO_OUTPUT_PUSHPULL);
LL_GPIO_SetPinMode(gpio->port, gpio->pin, LL_GPIO_MODE_ALTERNATE);
break;
case GpioModeOutputOpenDrain:
LL_GPIO_SetPinOutputType(gpio->port, gpio->pin, LL_GPIO_OUTPUT_OPENDRAIN);
LL_GPIO_SetPinMode(gpio->port, gpio->pin, LL_GPIO_MODE_OUTPUT);
break;
case GpioModeAltFunctionOpenDrain:
LL_GPIO_SetPinOutputType(gpio->port, gpio->pin, LL_GPIO_OUTPUT_OPENDRAIN);
LL_GPIO_SetPinMode(gpio->port, gpio->pin, LL_GPIO_MODE_ALTERNATE);
break;
case GpioModeAnalog:
LL_GPIO_SetPinMode(gpio->port, gpio->pin, LL_GPIO_MODE_ANALOG);
break;
default:
break;
}
}
__enable_irq();
}
void furi_hal_gpio_add_int_callback(const GpioPin* gpio, GpioExtiCallback cb, void* ctx) {
assert(gpio);
assert(cb);
__disable_irq();
uint8_t pin_num = furi_hal_gpio_get_pin_num(gpio);
gpio_interrupt[pin_num].callback = cb;
gpio_interrupt[pin_num].context = ctx;
gpio_interrupt[pin_num].ready = true;
__enable_irq();
}
void furi_hal_gpio_enable_int_callback(const GpioPin* gpio) {
assert(gpio);
__disable_irq();
uint8_t pin_num = furi_hal_gpio_get_pin_num(gpio);
if(gpio_interrupt[pin_num].callback) {
gpio_interrupt[pin_num].ready = true;
}
__enable_irq();
}
void furi_hal_gpio_disable_int_callback(const GpioPin* gpio) {
assert(gpio);
__disable_irq();
uint8_t pin_num = furi_hal_gpio_get_pin_num(gpio);
gpio_interrupt[pin_num].ready = false;
__enable_irq();
}
void furi_hal_gpio_remove_int_callback(const GpioPin* gpio) {
assert(gpio);
__disable_irq();
uint8_t pin_num = furi_hal_gpio_get_pin_num(gpio);
gpio_interrupt[pin_num].callback = NULL;
gpio_interrupt[pin_num].context = NULL;
gpio_interrupt[pin_num].ready = false;
__enable_irq();
}