[WIP] Max SPI speed reached (119ms for a full refresh. Theo max : 240*240*16 = 115.2ms) using IRQ and DMA.
Code needs some cleaning before integration.
This commit is contained in:
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aa3e5c0c6f
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eb7a1b3ac9
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@ -22,9 +22,7 @@ void Gfx::ClearScreen() {
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void Gfx::FillRectangle(uint8_t x, uint8_t y, uint8_t width, uint8_t height, uint16_t color) {
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SetBackgroundColor(color);
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lcd.BeginDrawBuffer(0, 0, width, height);
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for(int i = 0; i < height; i++) {
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lcd.NextDrawBuffer(reinterpret_cast<const uint8_t *>(buffer), width * 2);
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}
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lcd.NextDrawBuffer(reinterpret_cast<const uint8_t *>(buffer), width * 2, 240);
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lcd.EndDrawBuffer();
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}
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@ -65,7 +65,28 @@ void DisplayApp::InitHw() {
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touchPanel.Init();
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}
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uint32_t acc = 0;
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uint32_t count = 0;
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bool toggle = true;
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void DisplayApp::Refresh() {
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uint32_t before = nrf_rtc_counter_get(portNRF_RTC_REG);
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if(toggle) {
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gfx->FillRectangle(0,0,240,240,0x0000);
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} else {
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gfx->FillRectangle(0,0,240,240,0xffff);
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}
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uint32_t after = nrf_rtc_counter_get(portNRF_RTC_REG);
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acc += (after - before);
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if((count % 10) == 0) {
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NRF_LOG_INFO("DRAW : %d ms", (uint32_t)(acc/10));
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acc = 0;
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}
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count++;
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toggle = !toggle;
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#if 0
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TickType_t queueTimeout;
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switch (state) {
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case States::Idle:
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@ -116,6 +137,7 @@ void DisplayApp::Refresh() {
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break;
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}
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}
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#endif
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}
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void DisplayApp::RunningState() {
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@ -62,6 +62,7 @@ bool SpiMaster::Init() {
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NRF_SPIM0->INTENSET = ((unsigned)1 << (unsigned)6);
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NRF_SPIM0->INTENSET = ((unsigned)1 << (unsigned)1);
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NRF_SPIM0->INTENSET = ((unsigned)1 << (unsigned)19);
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NRF_SPIM0->ENABLE = (SPIM_ENABLE_ENABLE_Enabled << SPIM_ENABLE_ENABLE_Pos);
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@ -83,34 +84,61 @@ void SpiMaster::setup_workaround_for_ftpan_58(NRF_SPIM_Type *spim, uint32_t ppi_
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NRF_PPI->CHENSET = 1U << ppi_channel;
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}
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void SpiMaster::irq() {
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void SpiMaster::irqStarted() {
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if(busy) {
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if(bufferSize > 0) {
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auto currentSize = std::min((size_t)255, bufferSize);
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auto s = currentBufferSize;
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if(s > 0) {
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auto currentSize = std::min((size_t)255, s);
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NRF_SPIM0->TXD.PTR = (uint32_t) bufferAddr;
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NRF_SPIM0->TXD.PTR = (uint32_t) currentBufferAddr;
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NRF_SPIM0->TXD.MAXCNT = currentSize;
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NRF_SPIM0->TXD.LIST = 0;
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bufferAddr += currentSize;
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bufferSize -= currentSize;
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currentBufferAddr += currentSize;
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currentBufferSize -= currentSize;
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NRF_SPIM0->RXD.PTR = (uint32_t) 0;
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NRF_SPIM0->RXD.MAXCNT = 0;
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NRF_SPIM0->RXD.LIST = 0;
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NRF_SPIM0->TASKS_START = 1;
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if(repeat == 0)
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NRF_SPIM0->SHORTS = 0;
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return;
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}else {
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if(repeat > 0) {
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repeat = repeat -1;
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currentBufferAddr = bufferAddr;
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currentBufferSize = bufferSize;
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s = currentBufferSize;
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auto currentSize = std::min((size_t)255, s);
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NRF_SPIM0->TXD.PTR = (uint32_t) currentBufferAddr;
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NRF_SPIM0->TXD.MAXCNT = currentSize;
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NRF_SPIM0->TXD.LIST = 0;
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currentBufferAddr += currentSize;
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currentBufferSize -= currentSize;
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NRF_SPIM0->RXD.PTR = (uint32_t) 0;
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NRF_SPIM0->RXD.MAXCNT = 0;
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NRF_SPIM0->RXD.LIST = 0;
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}
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}
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}
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}
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void SpiMaster::irqEnd() {
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if(busy) {
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if(repeat == 0 && currentBufferSize == 0) {
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nrf_gpio_pin_set(pinCsn);
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busy = false;
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}
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}
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}
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bool SpiMaster::Write(const uint8_t *data, size_t size) {
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bool SpiMaster::Write(const uint8_t *data, size_t size, size_t r) {
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if(data == nullptr) return false;
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while(busy) {
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@ -121,7 +149,7 @@ bool SpiMaster::Write(const uint8_t *data, size_t size) {
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setup_workaround_for_ftpan_58(NRF_SPIM0, 0,0);
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NRF_SPIM0->INTENCLR = (1<<6);
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NRF_SPIM0->INTENCLR = (1<<1);
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NRF_SPIM0->INTENCLR = (1<<19);
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} else {
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NRF_GPIOTE->CONFIG[0] = 0;
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NRF_PPI->CH[0].EEP = 0;
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@ -129,31 +157,31 @@ bool SpiMaster::Write(const uint8_t *data, size_t size) {
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NRF_PPI->CHENSET = 0;
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NRF_SPIM0->INTENSET = (1<<6);
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NRF_SPIM0->INTENSET = (1<<1);
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NRF_SPIM0->INTENSET = (1<<19);
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}
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nrf_gpio_pin_clear(pinCsn);
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bufferAddr = (uint32_t)data;
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bufferSize = size;
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currentBufferAddr = bufferAddr = (uint32_t)data;
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currentBufferSize = bufferSize = size;
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repeat = r;
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busy = true;
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// while(size > 0) {
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if(repeat > 0)
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NRF_SPIM0->SHORTS = (1<<17);
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auto currentSize = std::min((size_t)255, bufferSize);
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NRF_SPIM0->TXD.PTR = (uint32_t) data;
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NRF_SPIM0->TXD.PTR = bufferAddr;
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NRF_SPIM0->TXD.MAXCNT = currentSize;
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NRF_SPIM0->TXD.LIST = 0;
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bufferSize -= currentSize;
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bufferAddr += currentSize;
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currentBufferSize -= currentSize;
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currentBufferAddr += currentSize;
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NRF_SPIM0->RXD.PTR = (uint32_t) 0;
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NRF_SPIM0->RXD.MAXCNT = 0;
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NRF_SPIM0->RXD.LIST = 0;
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if(size != 1) {
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NRF_SPIM0->EVENTS_END = 0;
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}
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NRF_SPIM0->TASKS_START = 1;
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if(size == 1) {
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@ -187,3 +215,9 @@ void SpiMaster::Sleep() {
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void SpiMaster::Wakeup() {
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Init();
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}
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void SpiMaster::Wait() {
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while(busy) {
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asm("nop");
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}
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}
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@ -23,9 +23,9 @@ namespace Pinetime {
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SpiMaster(const SpiModule spi, const Parameters& params);
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bool Init();
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bool Write(const uint8_t* data, size_t size);
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bool WriteRepeat(const uint8_t *data, size_t size, int repeat);
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bool Write(const uint8_t* data, size_t size, size_t r = 0);
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void setup_workaround_for_ftpan_58(NRF_SPIM_Type *spim, uint32_t ppi_channel, uint32_t gpiote_channel);
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void Wait();
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void Sleep();
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void Wakeup();
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@ -33,7 +33,8 @@ namespace Pinetime {
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bool GetStatusEnd();
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bool GetStatusStarted();
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void irq();
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void irqEnd();
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void irqStarted();
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private:
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NRF_SPIM_Type * spiBaseAddress;
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@ -42,11 +43,13 @@ namespace Pinetime {
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SpiMaster::SpiModule spi;
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SpiMaster::Parameters params;
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std::atomic<bool> busy {false};
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volatile bool busy = false;
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uint32_t bufferAddr = 0;
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volatile uint32_t currentBufferAddr = 0;
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size_t bufferSize = 0;
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volatile size_t currentBufferSize = 0;
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volatile uint32_t repeat = 0;
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};
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}
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}
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@ -37,8 +37,8 @@ void St7789::WriteData(uint8_t data) {
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}
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void St7789::WriteSpi(const uint8_t* data, size_t size) {
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spi.Write(data, size);
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void St7789::WriteSpi(const uint8_t* data, size_t size, size_t repeat) {
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spi.Write(data, size, repeat);
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}
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void St7789::SoftwareReset() {
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@ -143,10 +143,11 @@ void St7789::BeginDrawBuffer(uint16_t x, uint16_t y, uint16_t width, uint16_t he
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}
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void St7789::EndDrawBuffer() {
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spi.Wait();
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}
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void St7789::NextDrawBuffer(const uint8_t *data, size_t size) {
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WriteSpi(data, size);
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void St7789::NextDrawBuffer(const uint8_t *data, size_t size, size_t repeat) {
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WriteSpi(data, size, repeat);
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}
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void St7789::HardwareReset() {
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@ -12,7 +12,7 @@ namespace Pinetime {
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void DrawPixel(uint16_t x, uint16_t y, uint32_t color);
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void BeginDrawBuffer(uint16_t x, uint16_t y, uint16_t width, uint16_t height);
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void NextDrawBuffer(const uint8_t* data, size_t size);
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void NextDrawBuffer(const uint8_t* data, size_t size, size_t repeat = 0);
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void EndDrawBuffer();
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void DisplayOn();
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@ -40,7 +40,7 @@ namespace Pinetime {
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void SetAddrWindow(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1);
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void WriteCommand(uint8_t cmd);
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void WriteSpi(const uint8_t* data, size_t size);
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void WriteSpi(const uint8_t* data, size_t size, size_t repeat = 0);
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enum class Commands : uint8_t {
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SoftwareReset = 0x01,
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@ -162,7 +162,12 @@ extern Pinetime::Drivers::SpiMaster* spiInstance;
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void SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0_IRQHandler(void) {
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if(((NRF_SPIM0->INTENSET & (1<<6)) != 0) && NRF_SPIM0->EVENTS_END == 1) {
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NRF_SPIM0->EVENTS_END = 0;
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spiInstance->irq();
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spiInstance->irqEnd();
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}
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if(((NRF_SPIM0->INTENSET & (1<<19)) != 0) && NRF_SPIM0->EVENTS_STARTED == 1) {
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NRF_SPIM0->EVENTS_STARTED = 0;
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spiInstance->irqStarted();
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}
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@ -8452,15 +8452,15 @@
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// <e> NRF_LOG_ENABLED - nrf_log - Logger
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//==========================================================
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#ifndef NRF_LOG_ENABLED
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#define NRF_LOG_ENABLED 0
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#define NRF_LOG_ENABLED 1
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#endif
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#ifndef NRF_LOG_BACKEND_RTT_ENABLED
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#define NRF_LOG_BACKEND_RTT_ENABLED 0
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#define NRF_LOG_BACKEND_RTT_ENABLED 1
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#endif
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#ifndef NRF_LOG_BACKEND_SERIAL_USES_RTT
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#define NRF_LOG_BACKEND_SERIAL_USES_RTT 0
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#define NRF_LOG_BACKEND_SERIAL_USES_RTT 1
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#endif
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// <h> Log message pool - Configuration of log message pool
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