425a74a001
* iButton HAL: correct init and emulation sequence * FuriHal: cleanup init/deinit routines for emulation timer * FuriHal: cleanup TIM initialization routines in RFID and SubGhz * iButton: delay in emulate loop * Desktop: fix crash caused by invalid animation manager state, described in FL-2384 Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
115 lines
3.3 KiB
C
115 lines
3.3 KiB
C
#include <furi_hal_ibutton.h>
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#include <furi_hal_interrupt.h>
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#include <furi_hal_resources.h>
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#include <stm32wbxx_ll_tim.h>
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#include <furi.h>
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#define FURI_HAL_IBUTTON_TIMER TIM1
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#define FURI_HAL_IBUTTON_TIMER_IRQ TIM1_UP_TIM16_IRQn
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typedef enum {
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FuriHalIbuttonStateIdle,
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FuriHalIbuttonStateRunning,
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} FuriHalIbuttonState;
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typedef struct {
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FuriHalIbuttonState state;
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FuriHalIbuttonEmulateCallback callback;
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void* context;
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} FuriHalIbutton;
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FuriHalIbutton* furi_hal_ibutton = NULL;
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static void furi_hal_ibutton_emulate_isr() {
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if(LL_TIM_IsActiveFlag_UPDATE(FURI_HAL_IBUTTON_TIMER)) {
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LL_TIM_ClearFlag_UPDATE(FURI_HAL_IBUTTON_TIMER);
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furi_hal_ibutton->callback(furi_hal_ibutton->context);
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}
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}
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void furi_hal_ibutton_init() {
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furi_hal_ibutton = malloc(sizeof(FuriHalIbutton));
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furi_hal_ibutton->state = FuriHalIbuttonStateIdle;
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}
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void furi_hal_ibutton_emulate_start(
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uint32_t period,
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FuriHalIbuttonEmulateCallback callback,
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void* context) {
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furi_assert(furi_hal_ibutton);
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furi_assert(furi_hal_ibutton->state == FuriHalIbuttonStateIdle);
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furi_hal_ibutton->state = FuriHalIbuttonStateRunning;
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furi_hal_ibutton->callback = callback;
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furi_hal_ibutton->context = context;
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FURI_CRITICAL_ENTER();
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LL_TIM_DeInit(FURI_HAL_IBUTTON_TIMER);
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FURI_CRITICAL_EXIT();
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furi_hal_interrupt_set_timer_isr(FURI_HAL_IBUTTON_TIMER, furi_hal_ibutton_emulate_isr);
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NVIC_SetPriority(
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FURI_HAL_IBUTTON_TIMER_IRQ, NVIC_EncodePriority(NVIC_GetPriorityGrouping(), 5, 0));
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NVIC_EnableIRQ(FURI_HAL_IBUTTON_TIMER_IRQ);
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LL_TIM_SetPrescaler(FURI_HAL_IBUTTON_TIMER, 0);
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LL_TIM_SetCounterMode(FURI_HAL_IBUTTON_TIMER, LL_TIM_COUNTERMODE_UP);
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LL_TIM_SetAutoReload(FURI_HAL_IBUTTON_TIMER, period);
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LL_TIM_DisableARRPreload(FURI_HAL_IBUTTON_TIMER);
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LL_TIM_SetRepetitionCounter(FURI_HAL_IBUTTON_TIMER, 0);
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LL_TIM_SetClockDivision(FURI_HAL_IBUTTON_TIMER, LL_TIM_CLOCKDIVISION_DIV1);
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LL_TIM_SetClockSource(FURI_HAL_IBUTTON_TIMER, LL_TIM_CLOCKSOURCE_INTERNAL);
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LL_TIM_GenerateEvent_UPDATE(FURI_HAL_IBUTTON_TIMER);
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LL_TIM_EnableIT_UPDATE(FURI_HAL_IBUTTON_TIMER);
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LL_TIM_EnableCounter(FURI_HAL_IBUTTON_TIMER);
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}
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void furi_hal_ibutton_emulate_set_next(uint32_t period) {
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LL_TIM_SetAutoReload(FURI_HAL_IBUTTON_TIMER, period);
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}
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void furi_hal_ibutton_emulate_stop() {
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furi_assert(furi_hal_ibutton);
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if(furi_hal_ibutton->state == FuriHalIbuttonStateRunning) {
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furi_hal_ibutton->state = FuriHalIbuttonStateIdle;
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LL_TIM_DisableCounter(FURI_HAL_IBUTTON_TIMER);
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FURI_CRITICAL_ENTER();
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LL_TIM_DeInit(FURI_HAL_IBUTTON_TIMER);
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FURI_CRITICAL_EXIT();
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furi_hal_interrupt_set_timer_isr(FURI_HAL_IBUTTON_TIMER, NULL);
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furi_hal_ibutton->callback = NULL;
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furi_hal_ibutton->context = NULL;
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}
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}
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void furi_hal_ibutton_start() {
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furi_hal_ibutton_pin_high();
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hal_gpio_init(&ibutton_gpio, GpioModeOutputOpenDrain, GpioPullNo, GpioSpeedLow);
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}
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void furi_hal_ibutton_stop() {
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furi_hal_ibutton_pin_high();
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hal_gpio_init(&ibutton_gpio, GpioModeAnalog, GpioPullNo, GpioSpeedLow);
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}
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void furi_hal_ibutton_pin_low() {
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hal_gpio_write(&ibutton_gpio, false);
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}
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void furi_hal_ibutton_pin_high() {
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hal_gpio_write(&ibutton_gpio, true);
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}
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bool furi_hal_ibutton_pin_get_level() {
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return hal_gpio_read(&ibutton_gpio);
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}
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