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Only enable the bus when needed

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This commit is contained in:
Riku Isokoski 2021-08-10 11:26:43 +03:00
parent baa7e1bf12
commit 2194a339cf
2 changed files with 4 additions and 11 deletions
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6
src/drivers/TwiMaster.cpp
View File

@ -72,8 +72,10 @@ void TwiMaster::Init() {
TwiMaster::ErrorCodes TwiMaster::Read(uint8_t deviceAddress, uint8_t registerAddress, uint8_t* data, size_t size) {
xSemaphoreTake(mutex, portMAX_DELAY);
Wakeup();
auto ret = Write(deviceAddress, &registerAddress, 1, false);
ret = Read(deviceAddress, data, size, true);
Sleep();
xSemaphoreGive(mutex);
return ret;
}
@ -81,9 +83,11 @@ TwiMaster::ErrorCodes TwiMaster::Read(uint8_t deviceAddress, uint8_t registerAdd
TwiMaster::ErrorCodes TwiMaster::Write(uint8_t deviceAddress, uint8_t registerAddress, const uint8_t* data, size_t size) {
ASSERT(size <= maxDataSize);
xSemaphoreTake(mutex, portMAX_DELAY);
Wakeup();
internalBuffer[0] = registerAddress;
std::memcpy(internalBuffer + 1, data, size);
auto ret = Write(deviceAddress, internalBuffer, size + 1, true);
Sleep();
xSemaphoreGive(mutex);
return ret;
}
@ -179,13 +183,11 @@ void TwiMaster::Sleep() {
}
nrf_gpio_cfg_default(6);
nrf_gpio_cfg_default(7);
NRF_LOG_INFO("[TWIMASTER] Sleep");
}
void TwiMaster::Wakeup() {
ConfigurePins();
twiBaseAddress->ENABLE = (TWIM_ENABLE_ENABLE_Enabled << TWIM_ENABLE_ENABLE_Pos);
NRF_LOG_INFO("[TWIMASTER] Wakeup");
}
/* Sometimes, the TWIM device just freeze and never set the event EVENTS_LASTTX.

9
src/systemtask/SystemTask.cpp
View File

@ -219,7 +219,6 @@ void SystemTask::Work() {
break;
case Messages::GoToRunning:
spi.Wakeup();
twiMaster.Wakeup();
// Double Tap needs the touch screen to be in normal mode
if (!settingsController.isWakeUpModeOn(Pinetime::Controllers::Settings::WakeUpMode::DoubleTap)) {
@ -240,9 +239,7 @@ void SystemTask::Work() {
isDimmed = false;
break;
case Messages::TouchWakeUp: {
twiMaster.Wakeup();
auto touchInfo = touchPanel.GetTouchInfo();
twiMaster.Sleep();
if (touchInfo.isTouch and ((touchInfo.gesture == Pinetime::Drivers::Cst816S::Gestures::DoubleTap and
settingsController.isWakeUpModeOn(Pinetime::Controllers::Settings::WakeUpMode::DoubleTap)) or
(touchInfo.gesture == Pinetime::Drivers::Cst816S::Gestures::SingleTap and
@ -315,7 +312,6 @@ void SystemTask::Work() {
if (!settingsController.isWakeUpModeOn(Pinetime::Controllers::Settings::WakeUpMode::DoubleTap)) {
touchPanel.Sleep();
}
twiMaster.Sleep();
isSleeping = true;
isGoingToSleep = false;
@ -367,17 +363,12 @@ void SystemTask::UpdateMotion() {
if (isSleeping && !settingsController.isWakeUpModeOn(Pinetime::Controllers::Settings::WakeUpMode::RaiseWrist))
return;
if (isSleeping)
twiMaster.Wakeup();
if (stepCounterMustBeReset) {
motionSensor.ResetStepCounter();
stepCounterMustBeReset = false;
}
auto motionValues = motionSensor.Process();
if (isSleeping)
twiMaster.Sleep();
motionController.IsSensorOk(motionSensor.IsOk());
motionController.Update(motionValues.x, motionValues.y, motionValues.z, motionValues.steps);