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per-board pre-low-power handlers (#3752) 

* per-board pre-low-power handlers

* per-chip standby options

* default implementation
This commit is contained in:
Matthew Kennedy 2022-01-10 05:37:05 -08:00 committed by GitHub
parent 80817190fb
commit b4d916c913
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GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 47 additions and 6 deletions
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23
firmware/config/boards/proteus/board_configuration.cpp
View File

@ -216,3 +216,26 @@ void setBoardDefaultConfiguration(void) {
engineConfiguration->triggerSimulatorPins[1] = GPIOG_2;
#endif
}
void boardPrepareForStop() {
// enable EXTI on PD0 - CAN RX pin
palSetPadMode(GPIOD, 0, PAL_MODE_INPUT);
palEnableLineEvent(PAL_LINE(GPIOD, 0), PAL_EVENT_MODE_RISING_EDGE);
}
void boardPrepareForStandby() {
// We're out of luck trying to wake from standby on an F4, since it can only wake from PA0
#ifdef STM32F7XX
PWR->CSR2 |= PWR_CSR2_EWUP1; //EWUP1: Enable Wakeup pin for PA0
PWR->CR2 |= PWR_CR2_CWUPF1; //Clear Wakeup Pin flag for PA0
#endif
#ifdef STM32H7XX
// Wake on wakeup pin 0 - PA0
PWR->WKUPEPR = PWR_WKUPEPR_WKUPEN1;
// clear all possible wakeup bits
PWR->WKUPCR = 0xFFFFFFFF;
#endif
}

6
firmware/hw_layer/ports/stm32/port_mpu_util.h
View File

@ -67,4 +67,10 @@ typedef enum {
#ifdef __cplusplus
void stm32_stop();
void stm32_standby();
// Called just before the MCU is put in stop mode
void boardPrepareForStop();
// Called just before the MCU is put in standby mode
void boardPrepareForStandby();
#endif

8
firmware/hw_layer/ports/stm32/stm32_common.cpp
View File

@ -796,4 +796,12 @@ CANDriver* detectCanDevice(brain_pin_e pinRx, brain_pin_e pinTx) {
#endif /* EFI_CAN_SUPPORT */
// Stubs for per-board low power helpers
__attribute__((weak)) void boardPrepareForStop() {
// Default implementation - wake up on PA0 - boards should override this
palEnableLineEvent(PAL_LINE(GPIOA, 0), PAL_EVENT_MODE_RISING_EDGE);
}
__attribute__((weak)) void boardPrepareForStandby() { }
#endif // EFI_PROD_CODE

16
firmware/hw_layer/ports/stm32/stm32f7/mpu_util.cpp
View File

@ -178,13 +178,15 @@ void sys_dual_bank(void) {
void stm32_stop() {
SysTick->CTRL = 0;
SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
// Turn off the LEDs, those use some power
enginePins.errorLedPin.setValue(0);
enginePins.runningLedPin.setValue(0);
enginePins.communicationLedPin.setValue(0);
enginePins.warningLedPin.setValue(0);
palEnableLineEvent(PAL_LINE(GPIOA, 0), PAL_EVENT_MODE_RISING_EDGE);
// Do anything the board wants to prepare for stop mode - enabling wakeup sources!
boardPrepareForStop();
PWR->CSR1 |= PWR_CSR1_WUIF;
PWR->CR1 &= ~PWR_CR1_PDDS; // cleared PDDS means stop mode (not standby)
@ -204,10 +206,12 @@ void stm32_stop() {
void stm32_standby() {
SysTick->CTRL = 0;
SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
PWR->CR1 |= PWR_CR1_PDDS; // PDDS = use standby mode (not stop mode)
PWR->CSR2 |= PWR_CSR2_EWUP1; //EWUP1: Enable Wakeup pin for PA0
PWR->CR2 |= PWR_CR2_CWUPF1; //Clear Wakeup Pin flag for PA0
PWR->CR1 |= PWR_CR1_CSBF; //Clear standby flag
PWR->CR1 |= PWR_CR1_PDDS; // PDDS = use standby mode (not stop mode)
PWR->CR1 |= PWR_CR1_CSBF; // Clear standby flag
// Do anything the board wants to prepare for standby mode - enabling wakeup sources!
boardPrepareForStandby();
__disable_irq();
__WFI();
}