unleashed-firmware/firmware/targets/f7/furi_hal/furi_hal_ibutton.c
あく 3de856f8d5
[FL-3295] FuriHal: add bus abstraction (#2614)
* FuriHal: add bus abstraction and port some subsystem to it
* Make PVS happy, cleanup code
* Update API symbols for f18
* F18: backport bus changes from f7
* Revert to STOP2 sleep mode
* Fix downgrading the firmware via updater
* Port iButton TIM1 to furi_hal_bus
* Port Infrared TIM1 and TIM2 to furi_hal_bus
* Just enable the timer bus
* Port furi_hal_pwm to bus API
* Fix include statement
* Port furi_hal_rfid to bus API
* Port furi_hal_subghz and others to bus API
* Remove unneeded include
* Improve furi_hal_infrared defines
* Reset LPTIM1 via furi_hal_bus API
* Crash when trying to enable an already enabled peripheral
* Better defines
* Improved checks
* Lots of macro wrappers
* Copy spi changes for f18
* Fix crashes in LFRFID system
* Fix crashes in NFC system
* Improve comments
* Create FuriHalBus.md
* Update FuriHalBus.md
* Fix crash when launching updater
* Documentation: couple small fixes in FuriHalBus
* FuriHal: fix copypaste in furi_hal_rfid_tim_reset
* FuriHal: reset radio core related peripherals on restart
* FuriHalBus: is enabled routine and bug fix for uart
* RFID HAL: accomodate furi hal bus

Co-authored-by: Georgii Surkov <georgii.surkov@outlook.com>
Co-authored-by: Georgii Surkov <37121527+gsurkov@users.noreply.github.com>
Co-authored-by: SG <who.just.the.doctor@gmail.com>
2023-05-30 01:05:57 +09:00

103 lines
3.2 KiB
C

#include <furi_hal_ibutton.h>
#include <furi_hal_interrupt.h>
#include <furi_hal_resources.h>
#include <furi_hal_bus.h>
#include <stm32wbxx_ll_tim.h>
#include <furi.h>
#define TAG "FuriHalIbutton"
#define FURI_HAL_IBUTTON_TIMER TIM1
#define FURI_HAL_IBUTTON_TIMER_BUS FuriHalBusTIM1
#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;
FURI_LOG_I(TAG, "Init OK");
}
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_hal_bus_enable(FURI_HAL_IBUTTON_TIMER_BUS);
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_hal_bus_disable(FURI_HAL_IBUTTON_TIMER_BUS);
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(&gpio_ibutton, true);
furi_hal_gpio_init(&gpio_ibutton, GpioModeOutputOpenDrain, GpioPullNo, GpioSpeedLow);
}
void furi_hal_ibutton_pin_reset() {
furi_hal_gpio_write(&gpio_ibutton, true);
furi_hal_gpio_init(&gpio_ibutton, GpioModeAnalog, GpioPullNo, GpioSpeedLow);
}
void furi_hal_ibutton_pin_write(const bool state) {
furi_hal_gpio_write(&gpio_ibutton, state);
}