diff options
Diffstat (limited to 'src/drivers')
-rw-r--r-- | src/drivers/Cst816s.cpp | 38 | ||||
-rw-r--r-- | src/drivers/Cst816s.h | 26 | ||||
-rw-r--r-- | src/drivers/TwiMaster.cpp | 94 | ||||
-rw-r--r-- | src/drivers/TwiMaster.h | 19 |
4 files changed, 75 insertions, 102 deletions
diff --git a/src/drivers/Cst816s.cpp b/src/drivers/Cst816s.cpp index fd9792b3..b8f8e45d 100644 --- a/src/drivers/Cst816s.cpp +++ b/src/drivers/Cst816s.cpp @@ -40,38 +40,40 @@ void Cst816S::Init() { */ static constexpr uint8_t motionMask = 0b00000101; twiMaster.Write(twiAddress, 0xEC, &motionMask, 1); + + /* + [7] EnTest - Interrupt pin to test, enable automatic periodic issued after a low pulse. + [6] EnTouch - When a touch is detected, a periodic pulsed Low. + [5] EnChange - Upon detecting a touch state changes, pulsed Low. + [4] EnMotion - When the detected gesture is pulsed Low. + [0] OnceWLP - Press gesture only issue a pulse signal is low. + */ + static constexpr uint8_t irqCtl = 0b01110000; + twiMaster.Write(twiAddress, 0xFA, &irqCtl, 1); } Cst816S::TouchInfos Cst816S::GetTouchInfo() { Cst816S::TouchInfos info; auto ret = twiMaster.Read(twiAddress, 0, touchData, sizeof(touchData)); - if (ret != TwiMaster::ErrorCodes::NoError) - return {}; - - auto nbTouchPoints = touchData[2] & 0x0f; - - uint8_t i = 0; - - uint8_t pointId = (touchData[touchIdIndex + (touchStep * i)]) >> 4; - if (nbTouchPoints == 0 && pointId == lastTouchId) + if (ret != TwiMaster::ErrorCodes::NoError) { + info.isValid = false; return info; + } - info.isTouch = true; + auto nbTouchPoints = touchData[2] & 0x0f; - auto xHigh = touchData[touchXHighIndex + (touchStep * i)] & 0x0f; - auto xLow = touchData[touchXLowIndex + (touchStep * i)]; + auto xHigh = touchData[touchXHighIndex] & 0x0f; + auto xLow = touchData[touchXLowIndex]; uint16_t x = (xHigh << 8) | xLow; - auto yHigh = touchData[touchYHighIndex + (touchStep * i)] & 0x0f; - auto yLow = touchData[touchYLowIndex + (touchStep * i)]; + auto yHigh = touchData[touchYHighIndex] & 0x0f; + auto yLow = touchData[touchYLowIndex]; uint16_t y = (yHigh << 8) | yLow; - auto action = touchData[touchEventIndex + (touchStep * i)] >> 6; /* 0 = Down, 1 = Up, 2 = contact*/ - info.x = x; info.y = y; - info.action = action; + info.touching = (nbTouchPoints > 0); info.gesture = static_cast<Gestures>(touchData[gestureIndex]); return info; @@ -90,4 +92,4 @@ void Cst816S::Sleep() { void Cst816S::Wakeup() { Init(); NRF_LOG_INFO("[TOUCHPANEL] Wakeup"); -}
\ No newline at end of file +} diff --git a/src/drivers/Cst816s.h b/src/drivers/Cst816s.h index 14c296ea..d4c17bb8 100644 --- a/src/drivers/Cst816s.h +++ b/src/drivers/Cst816s.h @@ -19,12 +19,9 @@ namespace Pinetime { struct TouchInfos { uint16_t x = 0; uint16_t y = 0; - uint8_t action = 0; - uint8_t finger = 0; - uint8_t pressure = 0; - uint8_t area = 0; Gestures gesture = Gestures::None; - bool isTouch = false; + bool touching = false; + bool isValid = true; }; Cst816S(TwiMaster& twiMaster, uint8_t twiAddress); @@ -41,23 +38,24 @@ namespace Pinetime { private: static constexpr uint8_t pinIrq = 28; static constexpr uint8_t pinReset = 10; - static constexpr uint8_t lastTouchId = 0x0f; + + // Unused/Unavailable commented out + static constexpr uint8_t gestureIndex = 1; static constexpr uint8_t touchPointNumIndex = 2; - static constexpr uint8_t touchMiscIndex = 8; - static constexpr uint8_t touchXYIndex = 7; - static constexpr uint8_t touchEventIndex = 3; + //static constexpr uint8_t touchEventIndex = 3; static constexpr uint8_t touchXHighIndex = 3; static constexpr uint8_t touchXLowIndex = 4; + //static constexpr uint8_t touchIdIndex = 5; static constexpr uint8_t touchYHighIndex = 5; static constexpr uint8_t touchYLowIndex = 6; - static constexpr uint8_t touchIdIndex = 5; - static constexpr uint8_t touchStep = 6; - static constexpr uint8_t gestureIndex = 1; + //static constexpr uint8_t touchStep = 6; + //static constexpr uint8_t touchXYIndex = 7; + //static constexpr uint8_t touchMiscIndex = 8; - uint8_t touchData[10]; + uint8_t touchData[7]; TwiMaster& twiMaster; uint8_t twiAddress; }; } -}
\ No newline at end of file +} diff --git a/src/drivers/TwiMaster.cpp b/src/drivers/TwiMaster.cpp index fc9edf81..76009278 100644 --- a/src/drivers/TwiMaster.cpp +++ b/src/drivers/TwiMaster.cpp @@ -8,45 +8,39 @@ using namespace Pinetime::Drivers; // TODO use shortcut to automatically send STOP when receive LastTX, for example // TODO use DMA/IRQ -TwiMaster::TwiMaster(const Modules module, const Parameters& params) : module {module}, params {params} { +TwiMaster::TwiMaster(NRF_TWIM_Type* module, uint32_t frequency, uint8_t pinSda, uint8_t pinScl) + : module {module}, frequency {frequency}, pinSda {pinSda}, pinScl {pinScl} { +} + +void TwiMaster::ConfigurePins() const { + NRF_GPIO->PIN_CNF[pinScl] = + (GPIO_PIN_CNF_DIR_Input << GPIO_PIN_CNF_DIR_Pos) | + (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) | + (GPIO_PIN_CNF_PULL_Disabled << GPIO_PIN_CNF_PULL_Pos) | + (GPIO_PIN_CNF_DRIVE_S0D1 << GPIO_PIN_CNF_DRIVE_Pos) | + (GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos); + + NRF_GPIO->PIN_CNF[pinSda] = + (GPIO_PIN_CNF_DIR_Input << GPIO_PIN_CNF_DIR_Pos) | + (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) | + (GPIO_PIN_CNF_PULL_Disabled << GPIO_PIN_CNF_PULL_Pos) | + (GPIO_PIN_CNF_DRIVE_S0D1 << GPIO_PIN_CNF_DRIVE_Pos) | + (GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos); } void TwiMaster::Init() { - if(mutex == nullptr) + if (mutex == nullptr) { mutex = xSemaphoreCreateBinary(); - - NRF_GPIO->PIN_CNF[params.pinScl] = - ((uint32_t) GPIO_PIN_CNF_DIR_Input << GPIO_PIN_CNF_DIR_Pos) | ((uint32_t) GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) | - ((uint32_t) GPIO_PIN_CNF_PULL_Pullup << GPIO_PIN_CNF_PULL_Pos) | ((uint32_t) GPIO_PIN_CNF_DRIVE_S0D1 << GPIO_PIN_CNF_DRIVE_Pos) | - ((uint32_t) GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos); - - NRF_GPIO->PIN_CNF[params.pinSda] = - ((uint32_t) GPIO_PIN_CNF_DIR_Input << GPIO_PIN_CNF_DIR_Pos) | ((uint32_t) GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) | - ((uint32_t) GPIO_PIN_CNF_PULL_Pullup << GPIO_PIN_CNF_PULL_Pos) | ((uint32_t) GPIO_PIN_CNF_DRIVE_S0D1 << GPIO_PIN_CNF_DRIVE_Pos) | - ((uint32_t) GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos); - - switch (module) { - case Modules::TWIM1: - twiBaseAddress = NRF_TWIM1; - break; - default: - return; } - switch (static_cast<Frequencies>(params.frequency)) { - case Frequencies::Khz100: - twiBaseAddress->FREQUENCY = TWIM_FREQUENCY_FREQUENCY_K100; - break; - case Frequencies::Khz250: - twiBaseAddress->FREQUENCY = TWIM_FREQUENCY_FREQUENCY_K250; - break; - case Frequencies::Khz400: - twiBaseAddress->FREQUENCY = TWIM_FREQUENCY_FREQUENCY_K400; - break; - } + ConfigurePins(); - twiBaseAddress->PSEL.SCL = params.pinScl; - twiBaseAddress->PSEL.SDA = params.pinSda; + twiBaseAddress = module; + + twiBaseAddress->FREQUENCY = frequency; + + twiBaseAddress->PSEL.SCL = pinScl; + twiBaseAddress->PSEL.SDA = pinSda; twiBaseAddress->EVENTS_LASTRX = 0; twiBaseAddress->EVENTS_STOPPED = 0; twiBaseAddress->EVENTS_LASTTX = 0; @@ -57,19 +51,15 @@ void TwiMaster::Init() { twiBaseAddress->ENABLE = (TWIM_ENABLE_ENABLE_Enabled << TWIM_ENABLE_ENABLE_Pos); - /* // IRQ - NVIC_ClearPendingIRQ(_IRQn); - NVIC_SetPriority(_IRQn, 2); - NVIC_EnableIRQ(_IRQn); - */ - xSemaphoreGive(mutex); } 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, ®isterAddress, 1, false); ret = Read(deviceAddress, data, size, true); + Sleep(); xSemaphoreGive(mutex); return ret; } @@ -77,9 +67,11 @@ 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; } @@ -170,17 +162,11 @@ TwiMaster::ErrorCodes TwiMaster::Write(uint8_t deviceAddress, const uint8_t* dat } void TwiMaster::Sleep() { - while (twiBaseAddress->ENABLE != 0) { - twiBaseAddress->ENABLE = (TWIM_ENABLE_ENABLE_Disabled << TWIM_ENABLE_ENABLE_Pos); - } - nrf_gpio_cfg_default(6); - nrf_gpio_cfg_default(7); - NRF_LOG_INFO("[TWIMASTER] Sleep"); + twiBaseAddress->ENABLE = (TWIM_ENABLE_ENABLE_Disabled << TWIM_ENABLE_ENABLE_Pos); } void TwiMaster::Wakeup() { - Init(); - NRF_LOG_INFO("[TWIMASTER] Wakeup"); + twiBaseAddress->ENABLE = (TWIM_ENABLE_ENABLE_Enabled << TWIM_ENABLE_ENABLE_Pos); } /* Sometimes, the TWIM device just freeze and never set the event EVENTS_LASTTX. @@ -190,20 +176,10 @@ void TwiMaster::Wakeup() { * */ void TwiMaster::FixHwFreezed() { NRF_LOG_INFO("I2C device frozen, reinitializing it!"); - // Disable I²C - uint32_t twi_state = NRF_TWI1->ENABLE; - twiBaseAddress->ENABLE = TWIM_ENABLE_ENABLE_Disabled << TWI_ENABLE_ENABLE_Pos; - NRF_GPIO->PIN_CNF[params.pinScl] = - ((uint32_t) GPIO_PIN_CNF_DIR_Input << GPIO_PIN_CNF_DIR_Pos) | ((uint32_t) GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) | - ((uint32_t) GPIO_PIN_CNF_PULL_Pullup << GPIO_PIN_CNF_PULL_Pos) | ((uint32_t) GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos) | - ((uint32_t) GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos); + uint32_t twi_state = NRF_TWI1->ENABLE; - NRF_GPIO->PIN_CNF[params.pinSda] = - ((uint32_t) GPIO_PIN_CNF_DIR_Input << GPIO_PIN_CNF_DIR_Pos) | ((uint32_t) GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) | - ((uint32_t) GPIO_PIN_CNF_PULL_Pullup << GPIO_PIN_CNF_PULL_Pos) | ((uint32_t) GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos) | - ((uint32_t) GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos); + Sleep(); - // Re-enable I²C twiBaseAddress->ENABLE = twi_state; -}
\ No newline at end of file +} diff --git a/src/drivers/TwiMaster.h b/src/drivers/TwiMaster.h index 6175b99b..30ac6c5f 100644 --- a/src/drivers/TwiMaster.h +++ b/src/drivers/TwiMaster.h @@ -8,16 +8,9 @@ namespace Pinetime { namespace Drivers { class TwiMaster { public: - enum class Modules { TWIM1 }; - enum class Frequencies { Khz100, Khz250, Khz400 }; enum class ErrorCodes { NoError, TransactionFailed }; - struct Parameters { - uint32_t frequency; - uint8_t pinSda; - uint8_t pinScl; - }; - TwiMaster(const Modules module, const Parameters& params); + TwiMaster(NRF_TWIM_Type* module, uint32_t frequency, uint8_t pinSda, uint8_t pinScl); void Init(); ErrorCodes Read(uint8_t deviceAddress, uint8_t registerAddress, uint8_t* buffer, size_t size); @@ -30,10 +23,14 @@ namespace Pinetime { ErrorCodes Read(uint8_t deviceAddress, uint8_t* buffer, size_t size, bool stop); ErrorCodes Write(uint8_t deviceAddress, const uint8_t* data, size_t size, bool stop); void FixHwFreezed(); + void ConfigurePins() const; + NRF_TWIM_Type* twiBaseAddress; SemaphoreHandle_t mutex = nullptr; - const Modules module; - const Parameters params; + NRF_TWIM_Type* module; + uint32_t frequency; + uint8_t pinSda; + uint8_t pinScl; static constexpr uint8_t maxDataSize {16}; static constexpr uint8_t registerSize {1}; uint8_t internalBuffer[maxDataSize + registerSize]; @@ -41,4 +38,4 @@ namespace Pinetime { static constexpr uint32_t HwFreezedDelay {161000}; }; } -}
\ No newline at end of file +} |