unleashed-firmware/firmware/targets/f7/furi_hal/furi_hal_clock.c
Georgii Surkov 01434265f6
[FL-2399, FL-2261] Tickless sleep shenanigans (#1168)
* Disable USART in sleep
* Restore UART state on suspend/resume
* FuriHal: Enable stop mode and add insomnia to I2C and SPI
* Remove IDLE interrupt
* FuriHal: add FPU isr and disable all FPU interrupt, add core2 stop mode configuration on deep sleep
* FuriHal: tie stop mode debug with debug rtc flag
* FuriHal: adjust flash latency on clock switch, tie mcu debug with RTC debug flag
* FuriHal: move resource init to early stage
* Add EXTI pending check, enable debug traps with compile-time flag
* Wrap sleep debug functions in conditional compilation
* Remove erroneous changed
* Do not use CSS, remove it from everywhere
* Enable/disable USB on VBUS connect (prototype)
* FuriHal: add LPMS and DEEPSLEEP magic, workaround state inconsistency between cores
* FuriHal: honor c1 LMPS
* USB mode switch fix
* Applications: add flags and insomnia bypass system
* Correct spelling
* FuriHal: cleanup insomnia usage, reset sleep flags on wakeup, add shutdown api
* FuriHal: extra check on reinit request
* FuriHal: rename gpio_display_rst pin to gpio_display_rst_n
* FuriHal: add debug HAL
* FuriHal: add some magic to core2 reload procedure, fix issue with crash on ble keyboard exit
* FuriHal: cleanup ble glue, add BLE_GLUE_DEBUG flag
* FuriHal: ble reinit API, move os timer to LPTIM1 for deep sleep capability, shutdown that works
* FuriHal: take insomnia while shutdown
* Remove USB switch on/off on VBUS change
* Better tick skew handling
* Improve tick consistency under load
* Add USB_HP dummy IRQ handler
* Move interrupt check closer to sleep
* Clean up includes
* Re-enable Insomnia globally
* FuriHal: enable CSS
* FuriHal: remove questionable core2 clock shenanigans
* FuriHal: use core1 RCC registers in idle timer config
* FuriHal: return back CSS handlers, add lptim isr dispatching

Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
Co-authored-by: nminaylov <nm29719@gmail.com>
2022-04-29 16:29:51 +03:00

236 lines
8.1 KiB
C

#include <furi_hal_clock.h>
#include <furi.h>
#include <stm32wbxx_ll_pwr.h>
#include <stm32wbxx_ll_rcc.h>
#include <stm32wbxx_ll_utils.h>
#include <stm32wbxx_ll_cortex.h>
#include <stm32wbxx_ll_bus.h>
#define TAG "FuriHalClock"
#define CPU_CLOCK_HZ_EARLY 4000000
#define CPU_CLOCK_HZ_MAIN 64000000
#define TICK_INT_PRIORITY 15U
#define HS_CLOCK_IS_READY() (LL_RCC_HSE_IsReady() && LL_RCC_HSI_IsReady())
#define LS_CLOCK_IS_READY() (LL_RCC_LSE_IsReady() && LL_RCC_LSI1_IsReady())
void furi_hal_clock_init_early() {
LL_SetSystemCoreClock(CPU_CLOCK_HZ_EARLY);
LL_Init1msTick(SystemCoreClock);
LL_AHB2_GRP1_EnableClock(LL_AHB2_GRP1_PERIPH_GPIOA);
LL_AHB2_GRP1_EnableClock(LL_AHB2_GRP1_PERIPH_GPIOB);
LL_AHB2_GRP1_EnableClock(LL_AHB2_GRP1_PERIPH_GPIOC);
LL_AHB2_GRP1_EnableClock(LL_AHB2_GRP1_PERIPH_GPIOD);
LL_AHB2_GRP1_EnableClock(LL_AHB2_GRP1_PERIPH_GPIOE);
LL_AHB2_GRP1_EnableClock(LL_AHB2_GRP1_PERIPH_GPIOH);
LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_SPI1);
LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_SPI2);
LL_APB1_GRP2_EnableClock(LL_APB1_GRP2_PERIPH_LPTIM2);
LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_I2C1);
LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_I2C3);
}
void furi_hal_clock_deinit_early() {
LL_APB1_GRP1_DisableClock(LL_APB1_GRP1_PERIPH_I2C1);
LL_APB1_GRP1_DisableClock(LL_APB1_GRP1_PERIPH_I2C3);
LL_APB2_GRP1_DisableClock(LL_APB2_GRP1_PERIPH_SPI1);
LL_APB1_GRP1_DisableClock(LL_APB1_GRP1_PERIPH_SPI2);
LL_AHB2_GRP1_DisableClock(LL_AHB2_GRP1_PERIPH_GPIOA);
LL_AHB2_GRP1_DisableClock(LL_AHB2_GRP1_PERIPH_GPIOB);
LL_AHB2_GRP1_DisableClock(LL_AHB2_GRP1_PERIPH_GPIOC);
LL_AHB2_GRP1_DisableClock(LL_AHB2_GRP1_PERIPH_GPIOD);
LL_AHB2_GRP1_DisableClock(LL_AHB2_GRP1_PERIPH_GPIOE);
LL_AHB2_GRP1_DisableClock(LL_AHB2_GRP1_PERIPH_GPIOH);
}
void furi_hal_clock_init() {
/* Prepare Flash memory for 64MHz system clock */
LL_FLASH_SetLatency(LL_FLASH_LATENCY_3);
while(LL_FLASH_GetLatency() != LL_FLASH_LATENCY_3)
;
/* HSE and HSI configuration and activation */
LL_RCC_HSE_SetCapacitorTuning(0x26);
LL_RCC_HSE_Enable();
LL_RCC_HSI_Enable();
while(!HS_CLOCK_IS_READY())
;
LL_RCC_HSE_EnableCSS();
/* LSE and LSI1 configuration and activation */
LL_PWR_EnableBkUpAccess();
LL_RCC_LSE_SetDriveCapability(LL_RCC_LSEDRIVE_HIGH);
LL_RCC_LSE_Enable();
LL_RCC_LSI1_Enable();
while(!LS_CLOCK_IS_READY())
;
LL_EXTI_EnableIT_0_31(
LL_EXTI_LINE_18); /* Why? Because that's why. See RM0434, Table 61. CPU1 vector table. */
LL_EXTI_EnableRisingTrig_0_31(LL_EXTI_LINE_18);
LL_RCC_EnableIT_LSECSS();
LL_RCC_LSE_EnableCSS();
/* Main PLL configuration and activation */
LL_RCC_PLL_ConfigDomain_SYS(LL_RCC_PLLSOURCE_HSE, LL_RCC_PLLM_DIV_2, 8, LL_RCC_PLLR_DIV_2);
LL_RCC_PLL_Enable();
LL_RCC_PLL_EnableDomain_SYS();
while(LL_RCC_PLL_IsReady() != 1)
;
LL_RCC_PLLSAI1_ConfigDomain_48M(
LL_RCC_PLLSOURCE_HSE, LL_RCC_PLLM_DIV_2, 6, LL_RCC_PLLSAI1Q_DIV_2);
LL_RCC_PLLSAI1_ConfigDomain_ADC(
LL_RCC_PLLSOURCE_HSE, LL_RCC_PLLM_DIV_2, 6, LL_RCC_PLLSAI1R_DIV_2);
LL_RCC_PLLSAI1_Enable();
LL_RCC_PLLSAI1_EnableDomain_48M();
LL_RCC_PLLSAI1_EnableDomain_ADC();
while(LL_RCC_PLLSAI1_IsReady() != 1)
;
/* Sysclk activation on the main PLL */
/* Set CPU1 prescaler*/
LL_RCC_SetAHBPrescaler(LL_RCC_SYSCLK_DIV_1);
/* Set CPU2 prescaler*/
LL_C2_RCC_SetAHBPrescaler(LL_RCC_SYSCLK_DIV_2);
LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_PLL);
while(LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_PLL)
;
/* Set AHB SHARED prescaler*/
LL_RCC_SetAHB4Prescaler(LL_RCC_SYSCLK_DIV_1);
/* Set APB1 prescaler*/
LL_RCC_SetAPB1Prescaler(LL_RCC_APB1_DIV_1);
/* Set APB2 prescaler*/
LL_RCC_SetAPB2Prescaler(LL_RCC_APB2_DIV_1);
/* Disable MSI */
LL_RCC_MSI_Disable();
while(LL_RCC_MSI_IsReady() != 0)
;
/* Update CMSIS variable (which can be updated also through SystemCoreClockUpdate function) */
LL_SetSystemCoreClock(CPU_CLOCK_HZ_MAIN);
/* Update the time base */
LL_Init1msTick(SystemCoreClock);
LL_SYSTICK_EnableIT();
NVIC_SetPriority(
SysTick_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(), TICK_INT_PRIORITY, 0));
NVIC_EnableIRQ(SysTick_IRQn);
LL_RCC_SetUSARTClockSource(LL_RCC_USART1_CLKSOURCE_PCLK2);
LL_RCC_SetLPUARTClockSource(LL_RCC_LPUART1_CLKSOURCE_PCLK1);
LL_RCC_SetADCClockSource(LL_RCC_ADC_CLKSOURCE_PLLSAI1);
LL_RCC_SetI2CClockSource(LL_RCC_I2C1_CLKSOURCE_PCLK1);
LL_RCC_SetRNGClockSource(LL_RCC_RNG_CLKSOURCE_CLK48);
LL_RCC_SetUSBClockSource(LL_RCC_USB_CLKSOURCE_PLLSAI1);
LL_RCC_SetCLK48ClockSource(LL_RCC_CLK48_CLKSOURCE_PLLSAI1);
LL_RCC_SetSMPSClockSource(LL_RCC_SMPS_CLKSOURCE_HSE);
LL_RCC_SetSMPSPrescaler(LL_RCC_SMPS_DIV_1);
LL_RCC_SetRFWKPClockSource(LL_RCC_RFWKP_CLKSOURCE_LSE);
// AHB1 GRP1
LL_AHB1_GRP1_EnableClock(LL_AHB1_GRP1_PERIPH_DMA1);
LL_AHB1_GRP1_EnableClock(LL_AHB1_GRP1_PERIPH_DMA2);
LL_AHB1_GRP1_EnableClock(LL_AHB1_GRP1_PERIPH_DMAMUX1);
LL_AHB1_GRP1_EnableClock(LL_AHB1_GRP1_PERIPH_CRC);
// LL_AHB1_GRP1_EnableClock(LL_AHB1_GRP1_PERIPH_TSC);
// AHB2 GRP1
LL_AHB2_GRP1_EnableClock(LL_AHB2_GRP1_PERIPH_GPIOA);
LL_AHB2_GRP1_EnableClock(LL_AHB2_GRP1_PERIPH_GPIOB);
LL_AHB2_GRP1_EnableClock(LL_AHB2_GRP1_PERIPH_GPIOC);
LL_AHB2_GRP1_EnableClock(LL_AHB2_GRP1_PERIPH_GPIOD);
LL_AHB2_GRP1_EnableClock(LL_AHB2_GRP1_PERIPH_GPIOE);
LL_AHB2_GRP1_EnableClock(LL_AHB2_GRP1_PERIPH_GPIOH);
LL_AHB2_GRP1_EnableClock(LL_AHB2_GRP1_PERIPH_ADC);
LL_AHB2_GRP1_EnableClock(LL_AHB2_GRP1_PERIPH_AES1);
// AHB3 GRP1
// LL_AHB3_GRP1_EnableClock(LL_AHB3_GRP1_PERIPH_QUADSPI);
LL_AHB3_GRP1_EnableClock(LL_AHB3_GRP1_PERIPH_PKA);
LL_AHB3_GRP1_EnableClock(LL_AHB3_GRP1_PERIPH_AES2);
LL_AHB3_GRP1_EnableClock(LL_AHB3_GRP1_PERIPH_RNG);
LL_AHB3_GRP1_EnableClock(LL_AHB3_GRP1_PERIPH_HSEM);
LL_AHB3_GRP1_EnableClock(LL_AHB3_GRP1_PERIPH_IPCC);
LL_AHB3_GRP1_EnableClock(LL_AHB3_GRP1_PERIPH_FLASH);
// APB1 GRP1
LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_TIM2);
// LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_LCD);
LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_RTCAPB);
// LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_WWDG);
LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_SPI2);
LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_I2C1);
LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_I2C3);
LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_CRS);
LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_USB);
LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_LPTIM1);
// APB1 GRP2
LL_APB1_GRP2_EnableClock(LL_APB1_GRP2_PERIPH_LPUART1);
// APB2
// LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_ADC);
LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_TIM1);
LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_SPI1);
LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_USART1);
LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_TIM16);
LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_TIM17);
// LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_SAI1);
FURI_LOG_I(TAG, "Init OK");
}
void furi_hal_clock_switch_to_hsi() {
LL_RCC_HSI_Enable();
while(!LL_RCC_HSI_IsReady())
;
LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_HSI);
LL_RCC_SetSMPSClockSource(LL_RCC_SMPS_CLKSOURCE_HSI);
while(LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_HSI)
;
LL_FLASH_SetLatency(LL_FLASH_LATENCY_1);
}
void furi_hal_clock_switch_to_pll() {
LL_RCC_HSE_Enable();
LL_RCC_PLL_Enable();
while(!LL_RCC_HSE_IsReady())
;
while(!LL_RCC_PLL_IsReady())
;
LL_FLASH_SetLatency(LL_FLASH_LATENCY_3);
LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_PLL);
LL_RCC_SetSMPSClockSource(LL_RCC_SMPS_CLKSOURCE_HSE);
while(LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_PLL)
;
}
void furi_hal_clock_suspend_tick() {
CLEAR_BIT(SysTick->CTRL, SysTick_CTRL_ENABLE_Msk);
}
void furi_hal_clock_resume_tick() {
SET_BIT(SysTick->CTRL, SysTick_CTRL_ENABLE_Msk);
}