[WIP] Use IRQ in SPI driver to improve performances
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JF
parent
b4bd41cd56
commit
aa3e5c0c6f
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@ -9,10 +9,10 @@ using namespace Pinetime::Applications::Screens;
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void Clock::Refresh(bool fullRefresh) {
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if(fullRefresh) {
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gfx.FillRectangle(0,0,240,240,0x0000);
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currentChar[0] = 0;
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currentChar[1] = 0;
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currentChar[2] = 0;
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currentChar[3] = 0;
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currentChar[0] = 1;
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currentChar[1] = 2;
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currentChar[2] = 3;
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currentChar[3] = 4;
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auto dummy = currentDateTime.Get();
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}
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@ -9,6 +9,6 @@ using namespace Pinetime::Applications::Screens;
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void Message::Refresh(bool fullRefresh) {
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if(fullRefresh) {
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gfx.FillRectangle(0,0,240,240,0xffff);
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gfx.DrawString(120, 10, 0x0000, "COUCOU", &smallFont, false);
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gfx.DrawString(120, 10, 0x5555, "COUCOU", &smallFont, false);
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}
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}
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@ -4,8 +4,10 @@
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#include <algorithm>
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using namespace Pinetime::Drivers;
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SpiMaster* spiInstance;
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SpiMaster::SpiMaster(const SpiMaster::SpiModule spi, const SpiMaster::Parameters ¶ms) :
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spi{spi}, params{params} {
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spiInstance = this;
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}
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bool SpiMaster::Init() {
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@ -57,49 +59,17 @@ bool SpiMaster::Init() {
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NRF_SPIM0->EVENTS_ENDRX = 0;
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NRF_SPIM0->EVENTS_ENDTX = 0;
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NRF_SPIM0->EVENTS_END = 0;
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NRF_SPI0->EVENTS_READY = 0;
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NRF_SPI0->ENABLE = (SPI_ENABLE_ENABLE_Enabled << SPI_ENABLE_ENABLE_Pos);
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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->ENABLE = (SPIM_ENABLE_ENABLE_Enabled << SPIM_ENABLE_ENABLE_Pos);
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NRFX_IRQ_PRIORITY_SET(SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0_IRQn,6);
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NRFX_IRQ_ENABLE(SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0_IRQn);
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return true;
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}
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bool SpiMaster::WriteFast(const uint8_t *data, size_t size) {
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auto spi = reinterpret_cast<NRF_SPI_Type*>(spiBaseAddress);
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volatile uint32_t dummyread;
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if(data == nullptr) return false;
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/* enable slave (slave select active low) */
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nrf_gpio_pin_clear(pinCsn);
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NRF_SPI0->EVENTS_READY = 0;
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NRF_SPI0->TXD = (uint32_t)*data++;
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while(--size)
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{
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NRF_SPI0->TXD = (uint32_t)*data++;
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/* Wait for the transaction complete or timeout (about 10ms - 20 ms) */
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while (NRF_SPI0->EVENTS_READY == 0);
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/* clear the event to be ready to receive next messages */
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NRF_SPI0->EVENTS_READY = 0;
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dummyread = NRF_SPI0->RXD;
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}
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/* Wait for the transaction complete or timeout (about 10ms - 20 ms) */
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while (NRF_SPI0->EVENTS_READY == 0);
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dummyread = NRF_SPI0->RXD;
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/* disable slave (slave select active low) */
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nrf_gpio_pin_set(pinCsn);
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return true;
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}
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void SpiMaster::setup_workaround_for_ftpan_58(NRF_SPIM_Type *spim, uint32_t ppi_channel, uint32_t gpiote_channel) {
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// Create an event when SCK toggles.
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@ -113,41 +83,85 @@ 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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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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NRF_SPIM0->TXD.PTR = (uint32_t) bufferAddr;
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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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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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return;
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}else {
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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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if(data == nullptr) return false;
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while(busy) {
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asm("nop");
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}
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if(size == 1) {
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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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} else {
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NRF_GPIOTE->CONFIG[0] = 0;
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NRF_PPI->CH[0].EEP = 0;
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NRF_PPI->CH[0].TEP = 0;
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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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}
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nrf_gpio_pin_clear(pinCsn);
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auto spim = reinterpret_cast<NRF_SPIM_Type *>(spiBaseAddress);
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while(size > 0) {
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auto currentSize = std::min((size_t)255, size);
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size -= currentSize;
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bufferAddr = (uint32_t)data;
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bufferSize = size;
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busy = true;
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// while(size > 0) {
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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.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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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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while (NRF_SPIM0->EVENTS_END == 0);
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busy = false;
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nrf_gpio_pin_set(pinCsn);
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}
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nrf_gpio_pin_set(pinCsn);
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return true;
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}
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@ -2,7 +2,7 @@
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#include <cstdint>
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#include <cstddef>
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#include <array>
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#include <atomic>
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namespace Pinetime {
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namespace Drivers {
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class SpiMaster {
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@ -24,7 +24,7 @@ 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 WriteFast(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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void setup_workaround_for_ftpan_58(NRF_SPIM_Type *spim, uint32_t ppi_channel, uint32_t gpiote_channel);
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void Sleep();
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@ -33,12 +33,20 @@ namespace Pinetime {
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bool GetStatusEnd();
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bool GetStatusStarted();
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void irq();
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private:
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NRF_SPIM_Type * spiBaseAddress;
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uint8_t pinCsn;
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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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uint32_t bufferAddr = 0;
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size_t bufferSize = 0;
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};
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}
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}
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14
src/main.cpp
14
src/main.cpp
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@ -158,6 +158,20 @@ void OnNewTime(current_time_char_t* currentTime) {
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dayOfWeek, hour, minute, second, nrf_rtc_counter_get(portNRF_RTC_REG));
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}
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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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}
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if(((NRF_SPIM0->INTENSET & (1<<1)) != 0) && NRF_SPIM0->EVENTS_STOPPED == 1) {
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NRF_SPIM0->EVENTS_STOPPED = 0;
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}
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return;
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}
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int main(void) {
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displayApp.reset(new Pinetime::Applications::DisplayApp(batteryController, bleController, dateTimeController));
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logger.Init();
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