unleashed-firmware/targets/f7/furi_hal/furi_hal_idle_timer.h
hedger 917410a0a8
[FL-3629] fbt: reworked assets & resources handling (#3160)
* fbt: reworking targets & assets handling WIP
* fbt: dist fixes
* fbt: moved SD card resources to owning apps
* unit_tests: moved resources to app folder
* github: updated unit_tests paths
* github: packaging fixes
* unit_tests: fixes
* fbt: assets: internal cleanup
* fbt: reworked assets handling
* github: unit_tests: reintroducing fixes
* minor cleanup
* fbt: naming changes to reflect private nature of scons tools
* fbt: resources: fixed dist archive paths
* docs: updated paths
* docs: updated more paths
* docs: included "resources" parameter in app manifest docs; updated assets readme
* updated gitignore for assets
* github: updated action versions
* unit_tests: restored timeout; scripts: assets: logging changes
* gh: don't upload desktop animations for unit test run

Co-authored-by: あく <alleteam@gmail.com>
2023-10-31 00:17:30 +09:00

60 lines
2.0 KiB
C

#pragma once
#include <stm32wbxx_ll_lptim.h>
#include <stm32wbxx_ll_rcc.h>
#include <stm32wbxx_ll_bus.h>
#include <furi_hal_bus.h>
// Timer used for tickless idle
#define FURI_HAL_IDLE_TIMER_MAX 0xFFFF
#define FURI_HAL_IDLE_TIMER LPTIM1
#define FURI_HAL_IDLE_TIMER_IRQ LPTIM1_IRQn
static inline void furi_hal_idle_timer_init() {
furi_hal_bus_enable(FuriHalBusLPTIM1);
// Configure clock source
LL_RCC_SetLPTIMClockSource(LL_RCC_LPTIM1_CLKSOURCE_LSE);
// There is a theoretical possibility that we need it
LL_APB1_GRP1_EnableClockSleep(LL_APB1_GRP1_PERIPH_LPTIM1);
// Set interrupt priority and enable them
NVIC_SetPriority(
FURI_HAL_IDLE_TIMER_IRQ, NVIC_EncodePriority(NVIC_GetPriorityGrouping(), 15, 0));
NVIC_EnableIRQ(FURI_HAL_IDLE_TIMER_IRQ);
}
static inline void furi_hal_idle_timer_start(uint32_t count) {
count--;
// Enable timer
LL_LPTIM_Enable(FURI_HAL_IDLE_TIMER);
while(!LL_LPTIM_IsEnabled(FURI_HAL_IDLE_TIMER))
;
// Enable compare match interrupt
LL_LPTIM_EnableIT_CMPM(FURI_HAL_IDLE_TIMER);
// Set compare, autoreload and start counter
// Include some marging to workaround ARRM behaviour
LL_LPTIM_SetCompare(FURI_HAL_IDLE_TIMER, count - 3);
LL_LPTIM_SetAutoReload(FURI_HAL_IDLE_TIMER, count);
LL_LPTIM_StartCounter(FURI_HAL_IDLE_TIMER, LL_LPTIM_OPERATING_MODE_ONESHOT);
}
static inline void furi_hal_idle_timer_reset() {
// Hard reset timer
// THE ONLY RELIABLE WAY to stop it according to errata
furi_hal_bus_reset(FuriHalBusLPTIM1);
// Prevent IRQ handler call
NVIC_ClearPendingIRQ(FURI_HAL_IDLE_TIMER_IRQ);
}
static inline uint32_t furi_hal_idle_timer_get_cnt() {
uint32_t counter = LL_LPTIM_GetCounter(FURI_HAL_IDLE_TIMER);
uint32_t counter_shadow = LL_LPTIM_GetCounter(FURI_HAL_IDLE_TIMER);
while(counter != counter_shadow) {
counter = counter_shadow;
counter_shadow = LL_LPTIM_GetCounter(FURI_HAL_IDLE_TIMER);
}
return counter;
}