7a3a1aaf0d
* Add 1-wire thermometer example app stub * Working 1-wire thermometer app * Refactor app to use threads * Clean up code, add comments * Add CRC checking * Increase update period * Fix error in fbt * Revert the old update period * Use settable pin in onewire_host * Use settable pin for onewire_slave * Clear EXTI flag after callback, make private methods static in onewire_slave * Do not hardcode GPIO pin number * Remove iButton hal from furi_hal_rfid * Remove most of furi_hal_ibutton * Add some of furi_hal_ibutton back * Slightly neater code * Fix formatting * Fix PVS-studio warnings * Update CODEOWNERS * Add furi_hal_gpio_get_ext_pin_number * Create README.md * FuriHal: move furi_hal_gpio_get_ext_pin_number to resources --------- Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
105 lines
3.1 KiB
C
105 lines
3.1 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_pin_configure() {
|
|
furi_hal_gpio_write(&ibutton_gpio, true);
|
|
furi_hal_gpio_init(&ibutton_gpio, GpioModeOutputOpenDrain, GpioPullNo, GpioSpeedLow);
|
|
}
|
|
|
|
void furi_hal_ibutton_pin_reset() {
|
|
furi_hal_gpio_write(&ibutton_gpio, true);
|
|
furi_hal_gpio_init(&ibutton_gpio, GpioModeAnalog, GpioPullNo, GpioSpeedLow);
|
|
}
|
|
|
|
void furi_hal_ibutton_pin_write(const bool state) {
|
|
furi_hal_gpio_write(&ibutton_gpio, state);
|
|
}
|