Remove task to notify

Author: mark9064

src/FreeRTOSConfig.h

@@ -75,6 +75,7 @@
 #define configUSE_TIME_SLICING                  0
 #define configUSE_NEWLIB_REENTRANT              0
 #define configENABLE_BACKWARD_COMPATIBILITY     1
+#define configUSE_TASK_NOTIFICATIONS            0
 
 /* Hook function related definitions. */
 #define configUSE_IDLE_HOOK            0

src/displayapp/DisplayApp.cpp

@@ -140,9 +140,6 @@ void DisplayApp::Process(void* instance) {
   NRF_LOG_INFO("displayapp task started!");
   app->InitHw();
 
-  // Send a dummy notification to unlock the lvgl display driver for the first iteration
-  xTaskNotifyGive(xTaskGetCurrentTaskHandle());
-
   while (true) {
     app->Refresh();
   }

src/displayapp/DisplayAppRecovery.cpp

@@ -38,9 +38,6 @@ void DisplayApp::Process(void* instance) {
   auto* app = static_cast<DisplayApp*>(instance);
   NRF_LOG_INFO("displayapp task started!");
 
-  // Send a dummy notification to unlock the lvgl display driver for the first iteration
-  xTaskNotifyGive(xTaskGetCurrentTaskHandle());
-
   app->InitHw();
   while (true) {
     app->Refresh();
@@ -94,7 +91,6 @@ void DisplayApp::DisplayLogo(uint16_t color) {
   Pinetime::Tools::RleDecoder rleDecoder(infinitime_nb, sizeof(infinitime_nb), color, colorBlack);
   for (int i = 0; i < displayWidth; i++) {
     rleDecoder.DecodeNext(displayBuffer, displayWidth * bytesPerPixel);
-    ulTaskNotifyTake(pdTRUE, 500);
     lcd.DrawBuffer(0, i, displayWidth, 1, reinterpret_cast<const uint8_t*>(displayBuffer), displayWidth * bytesPerPixel);
   }
 }
@@ -103,7 +99,6 @@ void DisplayApp::DisplayOtaProgress(uint8_t percent, uint16_t color) {
   const uint8_t barHeight = 20;
   std::fill(displayBuffer, displayBuffer + (displayWidth * bytesPerPixel), color);
   for (int i = 0; i < barHeight; i++) {
-    ulTaskNotifyTake(pdTRUE, 500);
     uint16_t barWidth = std::min(static_cast<float>(percent) * 2.4f, static_cast<float>(displayWidth));
     lcd.DrawBuffer(0, displayWidth - barHeight + i, barWidth, 1, reinterpret_cast<const uint8_t*>(displayBuffer), barWidth * bytesPerPixel);
   }

src/displayapp/LittleVgl.cpp

@@ -152,10 +152,6 @@ void LittleVgl::SetFullRefresh(FullRefreshDirections direction) {
 void LittleVgl::FlushDisplay(const lv_area_t* area, lv_color_t* color_p) {
   uint16_t y1, y2, width, height = 0;
 
-  ulTaskNotifyTake(pdTRUE, 200);
-  // Notification is still needed (even if there is a mutex on SPI) because of the DataCommand pin
-  // which cannot be set/clear during a transfer.
-
   if ((scrollDirection == LittleVgl::FullRefreshDirections::Down) && (area->y2 == visibleNbLines - 1)) {
     writeOffset = ((writeOffset + totalNbLines) - visibleNbLines) % totalNbLines;
   } else if ((scrollDirection == FullRefreshDirections::Up) && (area->y1 == 0)) {
@@ -219,7 +215,6 @@ void LittleVgl::FlushDisplay(const lv_area_t* area, lv_color_t* color_p) {
 
     if (height > 0) {
       lcd.DrawBuffer(area->x1, y1, width, height, reinterpret_cast<const uint8_t*>(color_p), width * height * 2);
-      ulTaskNotifyTake(pdTRUE, 100);
     }
 
     uint16_t pixOffset = width * height;

src/drivers/SpiMaster.cpp

@@ -149,20 +149,14 @@ void SpiMaster::OnEndEvent() {
 
     spiBaseAddress->TASKS_START = 1;
   } else {
-    BaseType_t xHigherPriorityTaskWoken = pdFALSE;
-    if (taskToNotify != nullptr) {
-      vTaskNotifyGiveFromISR(taskToNotify, &xHigherPriorityTaskWoken);
-      portYIELD_FROM_ISR(xHigherPriorityTaskWoken);
-    }
-
     nrf_gpio_pin_set(this->pinCsn);
     if (this->TransactionHook != nullptr) {
       this->TransactionHook(false);
     }
     currentBufferAddr = 0;
-    BaseType_t xHigherPriorityTaskWoken2 = pdFALSE;
-    xSemaphoreGiveFromISR(mutex, &xHigherPriorityTaskWoken2);
-    portYIELD_FROM_ISR(xHigherPriorityTaskWoken | xHigherPriorityTaskWoken2);
+    BaseType_t xHigherPriorityTaskWoken = pdFALSE;
+    xSemaphoreGiveFromISR(mutex, &xHigherPriorityTaskWoken);
+    portYIELD_FROM_ISR(xHigherPriorityTaskWoken);
   }
 }
 
@@ -194,7 +188,6 @@ bool SpiMaster::Write(uint8_t pinCsn, const uint8_t* data, size_t size, void (*T
     return false;
   auto ok = xSemaphoreTake(mutex, portMAX_DELAY);
   ASSERT(ok == true);
-  taskToNotify = xTaskGetCurrentTaskHandle();
 
   this->TransactionHook = TransactionHook;
   this->pinCsn = pinCsn;
@@ -239,7 +232,6 @@ bool SpiMaster::Write(uint8_t pinCsn, const uint8_t* data, size_t size, void (*T
 bool SpiMaster::Read(uint8_t pinCsn, uint8_t* cmd, size_t cmdSize, uint8_t* data, size_t dataSize) {
   xSemaphoreTake(mutex, portMAX_DELAY);
 
-  taskToNotify = nullptr;
   this->TransactionHook = nullptr;
   this->pinCsn = pinCsn;
   DisableWorkaroundForErratum58();
@@ -288,8 +280,6 @@ void SpiMaster::Wakeup() {
 bool SpiMaster::WriteCmdAndBuffer(uint8_t pinCsn, const uint8_t* cmd, size_t cmdSize, const uint8_t* data, size_t dataSize) {
   xSemaphoreTake(mutex, portMAX_DELAY);
 
-  taskToNotify = nullptr;
-
   this->TransactionHook = nullptr;
 
   this->pinCsn = pinCsn;

src/drivers/SpiMaster.h

@@ -59,7 +59,6 @@ namespace Pinetime {
 
       volatile uint32_t currentBufferAddr = 0;
       volatile size_t currentBufferSize = 0;
-      volatile TaskHandle_t taskToNotify;
       SemaphoreHandle_t mutex = nullptr;
       static constexpr nrf_ppi_channel_t workaroundPpi = NRF_PPI_CHANNEL0;
       bool workaroundActive = false;

src/recoveryLoader.cpp

@@ -124,7 +124,6 @@ void DisplayLogo() {
   Pinetime::Tools::RleDecoder rleDecoder(infinitime_nb, sizeof(infinitime_nb));
   for (int i = 0; i < displayWidth; i++) {
     rleDecoder.DecodeNext(displayBuffer, displayWidth * bytesPerPixel);
-    ulTaskNotifyTake(pdTRUE, 500);
     lcd.DrawBuffer(0, i, displayWidth, 1, reinterpret_cast<const uint8_t*>(displayBuffer), displayWidth * bytesPerPixel);
   }
 }
@@ -133,7 +132,6 @@ void DisplayProgressBar(uint8_t percent, uint16_t color) {
   static constexpr uint8_t barHeight = 20;
   std::fill(displayBuffer, displayBuffer + (displayWidth * bytesPerPixel), color);
   for (int i = 0; i < barHeight; i++) {
-    ulTaskNotifyTake(pdTRUE, 500);
     uint16_t barWidth = std::min(static_cast<float>(percent) * 2.4f, static_cast<float>(displayWidth));
     lcd.DrawBuffer(0, displayWidth - barHeight + i, barWidth, 1, reinterpret_cast<const uint8_t*>(displayBuffer), barWidth * bytesPerPixel);
   }