flipperzero-firmware/firmware/targets/f7/furi_hal/furi_hal_ibutton.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

136 lines
4.0 KiB
C

#include <furi_hal_ibutton.h>
#include <furi_hal_interrupt.h>
#include <furi_hal_resources.h>
#include <stm32wbxx_ll_tim.h>
#include <stm32wbxx_ll_exti.h>
#include <furi.h>
#define FURI_HAL_IBUTTON_TIMER TIM1
#define FURI_HAL_IBUTTON_TIMER_IRQ FuriHalInterruptIdTim1UpTim16
typedef enum {
FuriHalIbuttonStateIdle,
FuriHalIbuttonStateRunning,
} FuriHalIbuttonState;
typedef struct {
FuriHalIbuttonState state;
FuriHalIbuttonEmulateCallback callback;
void* context;
} FuriHalIbutton;
FuriHalIbutton* furi_hal_ibutton = NULL;
static void furi_hal_ibutton_emulate_isr() {
if(LL_TIM_IsActiveFlag_UPDATE(FURI_HAL_IBUTTON_TIMER)) {
LL_TIM_ClearFlag_UPDATE(FURI_HAL_IBUTTON_TIMER);
furi_hal_ibutton->callback(furi_hal_ibutton->context);
}
}
void furi_hal_ibutton_init() {
furi_hal_ibutton = malloc(sizeof(FuriHalIbutton));
furi_hal_ibutton->state = FuriHalIbuttonStateIdle;
}
void furi_hal_ibutton_emulate_start(
uint32_t period,
FuriHalIbuttonEmulateCallback callback,
void* context) {
furi_assert(furi_hal_ibutton);
furi_assert(furi_hal_ibutton->state == FuriHalIbuttonStateIdle);
furi_hal_ibutton->state = FuriHalIbuttonStateRunning;
furi_hal_ibutton->callback = callback;
furi_hal_ibutton->context = context;
FURI_CRITICAL_ENTER();
LL_TIM_DeInit(FURI_HAL_IBUTTON_TIMER);
FURI_CRITICAL_EXIT();
furi_hal_interrupt_set_isr(FURI_HAL_IBUTTON_TIMER_IRQ, furi_hal_ibutton_emulate_isr, NULL);
LL_TIM_SetPrescaler(FURI_HAL_IBUTTON_TIMER, 0);
LL_TIM_SetCounterMode(FURI_HAL_IBUTTON_TIMER, LL_TIM_COUNTERMODE_UP);
LL_TIM_SetAutoReload(FURI_HAL_IBUTTON_TIMER, period);
LL_TIM_DisableARRPreload(FURI_HAL_IBUTTON_TIMER);
LL_TIM_SetRepetitionCounter(FURI_HAL_IBUTTON_TIMER, 0);
LL_TIM_SetClockDivision(FURI_HAL_IBUTTON_TIMER, LL_TIM_CLOCKDIVISION_DIV1);
LL_TIM_SetClockSource(FURI_HAL_IBUTTON_TIMER, LL_TIM_CLOCKSOURCE_INTERNAL);
LL_TIM_GenerateEvent_UPDATE(FURI_HAL_IBUTTON_TIMER);
LL_TIM_EnableIT_UPDATE(FURI_HAL_IBUTTON_TIMER);
LL_TIM_EnableCounter(FURI_HAL_IBUTTON_TIMER);
}
void furi_hal_ibutton_emulate_set_next(uint32_t period) {
LL_TIM_SetAutoReload(FURI_HAL_IBUTTON_TIMER, period);
}
void furi_hal_ibutton_emulate_stop() {
furi_assert(furi_hal_ibutton);
if(furi_hal_ibutton->state == FuriHalIbuttonStateRunning) {
furi_hal_ibutton->state = FuriHalIbuttonStateIdle;
LL_TIM_DisableCounter(FURI_HAL_IBUTTON_TIMER);
FURI_CRITICAL_ENTER();
LL_TIM_DeInit(FURI_HAL_IBUTTON_TIMER);
FURI_CRITICAL_EXIT();
furi_hal_interrupt_set_isr(FURI_HAL_IBUTTON_TIMER_IRQ, NULL, NULL);
furi_hal_ibutton->callback = NULL;
furi_hal_ibutton->context = NULL;
}
}
void furi_hal_ibutton_start_drive() {
furi_hal_ibutton_pin_high();
furi_hal_gpio_init(&ibutton_gpio, GpioModeOutputOpenDrain, GpioPullNo, GpioSpeedLow);
}
void furi_hal_ibutton_start_drive_in_isr() {
furi_hal_gpio_init(&ibutton_gpio, GpioModeOutputOpenDrain, GpioPullNo, GpioSpeedLow);
LL_EXTI_ClearFlag_0_31(ibutton_gpio.pin);
}
void furi_hal_ibutton_start_interrupt() {
furi_hal_ibutton_pin_high();
furi_hal_gpio_init(&ibutton_gpio, GpioModeInterruptRiseFall, GpioPullNo, GpioSpeedLow);
}
void furi_hal_ibutton_start_interrupt_in_isr() {
furi_hal_gpio_init(&ibutton_gpio, GpioModeInterruptRiseFall, GpioPullNo, GpioSpeedLow);
LL_EXTI_ClearFlag_0_31(ibutton_gpio.pin);
}
void furi_hal_ibutton_stop() {
furi_hal_ibutton_pin_high();
furi_hal_gpio_init(&ibutton_gpio, GpioModeAnalog, GpioPullNo, GpioSpeedLow);
}
void furi_hal_ibutton_add_interrupt(GpioExtiCallback cb, void* context) {
furi_hal_gpio_add_int_callback(&ibutton_gpio, cb, context);
}
void furi_hal_ibutton_remove_interrupt() {
furi_hal_gpio_remove_int_callback(&ibutton_gpio);
}
void furi_hal_ibutton_pin_low() {
furi_hal_gpio_write(&ibutton_gpio, false);
}
void furi_hal_ibutton_pin_high() {
furi_hal_gpio_write(&ibutton_gpio, true);
}
bool furi_hal_ibutton_pin_get_level() {
return furi_hal_gpio_read(&ibutton_gpio);
}