Re-implement sleep/wakeup for touch panel, display, NOR Flash, SPI and TWI.

src/DisplayApp/DisplayApp.cpp

@@ -95,14 +95,10 @@ void DisplayApp::Refresh() {
           vTaskDelay(100);
         }
         lcd.DisplayOff();
-        lcd.Sleep();
-        touchPanel.Sleep();
+        systemTask.PushMessage(System::SystemTask::Messages::OnDisplayTaskSleeping);
         state = States::Idle;
         break;
       case Messages::GoToRunning:
-        lcd.Wakeup();
-        touchPanel.Wakeup();
-
         lcd.DisplayOn();
         brightnessController.Restore();
         state = States::Running;
@@ -173,7 +169,7 @@ void DisplayApp::Refresh() {
     }
   }
 
-  if(touchMode == TouchModes::Polling) {
+  if(state != States::Idle && touchMode == TouchModes::Polling) {
     auto info = touchPanel.GetTouchInfo();
     if(info.action == 2) {// 2 = contact
       if(!currentScreen->OnTouchEvent(info.x, info.y)) {

src/SystemTask/SystemTask.cpp

@@ -145,6 +145,14 @@ void SystemTask::Work() {
         case Messages::OnButtonEvent:
           ReloadIdleTimer();
           break;
+        case Messages::OnDisplayTaskSleeping:
+          spiNorFlash.Sleep();
+          lcd.Sleep();
+          touchPanel.Sleep();
+
+          spi.Sleep();
+          twiMaster.Sleep();
+          break;
         default: break;
       }
     }
@@ -185,6 +193,13 @@ void SystemTask::OnButtonPushed() {
 
 void SystemTask::GoToRunning() {
   PushMessage(Messages::GoToRunning);
+  spi.Wakeup();
+  twiMaster.Wakeup();
+
+  spiNorFlash.Wakeup();
+  lcd.Wakeup();
+  touchPanel.Wakeup();
+
   displayApp->PushMessage(Applications::DisplayApp::Messages::GoToRunning);
   displayApp->PushMessage(Applications::DisplayApp::Messages::UpdateBatteryLevel);
 }

src/SystemTask/SystemTask.h

@@ -18,7 +18,7 @@ namespace Pinetime {
     class SystemTask {
       public:
         enum class Messages {GoToSleep, GoToRunning, OnNewTime, OnNewNotification, BleConnected,
-            BleFirmwareUpdateStarted, BleFirmwareUpdateFinished, OnTouchEvent, OnButtonEvent
+            BleFirmwareUpdateStarted, BleFirmwareUpdateFinished, OnTouchEvent, OnButtonEvent, OnDisplayTaskSleeping
         };
 
         SystemTask(Drivers::SpiMaster &spi, Drivers::St7789 &lcd,

src/drivers/Cst816s.cpp

@@ -2,7 +2,6 @@
 #include <task.h>
 #include <nrfx_log.h>
 #include <legacy/nrf_drv_gpiote.h>
-
 #include "Cst816s.h"
 using namespace Pinetime::Drivers;
 
@@ -96,12 +95,16 @@ Cst816S::TouchInfos Cst816S::GetTouchInfo() {
 }
 
 void Cst816S::Sleep() {
-  // TODO re enable sleep mode
-  //twiMaster.Sleep();
-  nrf_gpio_cfg_default(6);
-  nrf_gpio_cfg_default(7);
+  nrf_gpio_pin_clear(pinReset);
+  vTaskDelay(5);
+  nrf_gpio_pin_set(pinReset);
+  vTaskDelay(50);
+  static constexpr uint8_t sleepValue = 0x03;
+  twiMaster.Write(twiAddress, 0xA5, &sleepValue, 1);
+  NRF_LOG_INFO("[TOUCHPANEL] Sleep");
 }
 
 void Cst816S::Wakeup() {
   Init();
+  NRF_LOG_INFO("[TOUCHPANEL] Wakeup");
 }

src/drivers/Spi.cpp

@@ -1,4 +1,5 @@
 #include <hal/nrf_gpio.h>
+#include <nrfx_log.h>
 #include "Spi.h"
 
 using namespace Pinetime::Drivers;
@@ -18,8 +19,12 @@ bool Spi::Read(uint8_t* cmd, size_t cmdSize, uint8_t *data, size_t dataSize) {
 }
 
 void Spi::Sleep() {
-  // TODO sleep spi
   nrf_gpio_cfg_default(pinCsn);
+  NRF_LOG_INFO("[SPI] Sleep")
+}
+
+bool Spi::WriteCmdAndBuffer(const uint8_t *cmd, size_t cmdSize, const uint8_t *data, size_t dataSize) {
+  return spiMaster.WriteCmdAndBuffer(pinCsn, cmd, cmdSize, data, dataSize);
 }
 
 bool Spi::Init() {
@@ -27,8 +32,10 @@ bool Spi::Init() {
   return true;
 }
 
-bool Spi::WriteCmdAndBuffer(const uint8_t *cmd, size_t cmdSize, const uint8_t *data, size_t dataSize) {
-  return spiMaster.WriteCmdAndBuffer(pinCsn, cmd, cmdSize, data, dataSize);
+void Spi::Wakeup() {
+  nrf_gpio_cfg_output(pinCsn);
+  nrf_gpio_pin_set(pinCsn);
+  NRF_LOG_INFO("[SPI] Wakeup")
 }
 
 

src/drivers/SpiMaster.cpp

@@ -4,6 +4,7 @@
 #include "SpiMaster.h"
 #include <algorithm>
 #include <task.h>
+#include <nrfx_log.h>
 
 using namespace Pinetime::Drivers;
 
@@ -231,10 +232,13 @@ void SpiMaster::Sleep() {
   nrf_gpio_cfg_default(params.pinSCK);
   nrf_gpio_cfg_default(params.pinMOSI);
   nrf_gpio_cfg_default(params.pinMISO);
+
+  NRF_LOG_INFO("[SPIMASTER] sleep")
 }
 
 void SpiMaster::Wakeup() {
   Init();
+  NRF_LOG_INFO("[SPIMASTER] Wakeup");
 }
 
 bool SpiMaster::WriteCmdAndBuffer(uint8_t pinCsn, const uint8_t *cmd, size_t cmdSize, const uint8_t *data, size_t dataSize) {

src/drivers/SpiNorFlash.cpp

@@ -11,8 +11,8 @@ SpiNorFlash::SpiNorFlash(Spi& spi) : spi{spi} {
 }
 
 void SpiNorFlash::Init() {
-  auto id = ReadIdentificaion();
-  NRF_LOG_INFO("[SPI FLASH] Manufacturer : %d, Memory type : %d, memory density : %d", id.manufacturer, id.type, id.density);
+  device_id = ReadIdentificaion();
+  NRF_LOG_INFO("[SPI FLASH] Manufacturer : %d, Memory type : %d, memory density : %d", device_id.manufacturer, device_id.type, device_id.density);
 }
 
 void SpiNorFlash::Uninit() {
@@ -20,11 +20,25 @@ void SpiNorFlash::Uninit() {
 }
 
 void SpiNorFlash::Sleep() {
-
+  auto cmd = static_cast<uint8_t>(Commands::DeepPowerDown);
+  spi.Write(&cmd, sizeof(uint8_t));
+  NRF_LOG_INFO("[FLASH] Sleep")
 }
 
 void SpiNorFlash::Wakeup() {
-
+  // send Commands::ReleaseFromDeepPowerDown then 3 dummy bytes before reading Device ID
+  static constexpr uint8_t cmdSize = 4;
+  uint8_t cmd[cmdSize] = {static_cast<uint8_t>(Commands::ReleaseFromDeepPowerDown), 0x01, 0x02, 0x03};
+  uint8_t id = 0;
+  spi.Read(reinterpret_cast<uint8_t *>(&cmd), cmdSize, &id, 1);
+  auto devId =   device_id = ReadIdentificaion();
+  if(devId.type != device_id.type) {
+    NRF_LOG_INFO("[SpiNorFlash] ID on Wakeup: Failed");
+  }
+  else {
+    NRF_LOG_INFO("[SpiNorFlash] ID on Wakeup: %d", id);
+  }
+  NRF_LOG_INFO("[FLASH] Wakeup")
 }
 
 SpiNorFlash::Identification SpiNorFlash::ReadIdentificaion() {

src/drivers/SpiNorFlash.h

@@ -48,11 +48,13 @@ namespace Pinetime {
             SectorErase = 0x20,
             ReadSecurityRegister = 0x2B,
             ReadIdentification = 0x9F,
+            ReleaseFromDeepPowerDown = 0xAB,
+            DeepPowerDown = 0xB9
         };
         static constexpr uint16_t pageSize = 256;
 
         Spi& spi;
-
+        Identification device_id;
     };
   }
 }

src/drivers/St7789.cpp

@@ -1,5 +1,6 @@
 #include <hal/nrf_gpio.h>
 #include <libraries/delay/nrf_delay.h>
+#include <nrfx_log.h>
 #include "St7789.h"
 #include "Spi.h"
 
@@ -174,12 +175,10 @@ void St7789::HardwareReset() {
 void St7789::Sleep() {
   SleepIn();
   nrf_gpio_cfg_default(pinDataCommand);
-//  spi.Sleep(); // TODO sleep SPI
+  NRF_LOG_INFO("[LCD] Sleep");
 }
 
 void St7789::Wakeup() {
-//  spi.Wakeup(); // TODO wake up SPI
-
   nrf_gpio_cfg_output(pinDataCommand);
   // TODO why do we need to reset the controller?
   HardwareReset();
@@ -193,4 +192,5 @@ void St7789::Wakeup() {
   NormalModeOn();
   VerticalScrollStartAddress(verticalScrollingStartAddress);
   DisplayOn();
+  NRF_LOG_INFO("[LCD] Wakeup")
 }

src/drivers/TwiMaster.cpp

@@ -137,4 +137,16 @@ void TwiMaster::Write(uint8_t deviceAddress, const uint8_t *data, size_t size, b
     uint32_t error = twiBaseAddress->ERRORSRC;
     twiBaseAddress->ERRORSRC = error;
   }
-}
+}
+
+void TwiMaster::Sleep() {
+  nrf_gpio_cfg_default(6);
+  nrf_gpio_cfg_default(7);
+  twiBaseAddress->ENABLE = 0;
+  NRF_LOG_INFO("[TWIMASTER] Sleep");
+}
+
+void TwiMaster::Wakeup() {
+  Init();
+  NRF_LOG_INFO("[TWIMASTER] Wakeup");
+}

src/drivers/TwiMaster.h

@@ -22,6 +22,9 @@ namespace Pinetime {
         void Read(uint8_t deviceAddress, uint8_t registerAddress, uint8_t* buffer, size_t size);
         void Write(uint8_t deviceAddress, uint8_t registerAddress, const uint8_t* data, size_t size);
 
+        void Sleep();
+        void Wakeup();
+
       private:
         void Read(uint8_t deviceAddress, uint8_t* buffer, size_t size, bool stop);
         void Write(uint8_t deviceAddress, const uint8_t* data, size_t size, bool stop);