107 lines
2.1 KiB
C++
107 lines
2.1 KiB
C++
#ifndef E_INK_WAVESHARE
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#define E_INK_WAVESHARE
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#include <cstdint>
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#include "../../Debug.h"
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#ifndef usleep
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void usleep(int val) {
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vTaskDelay(val / 1000 / portTICK_PERIOD_MS);
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}
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#endif
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/**
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* base-class for Waveshare SPI E-Ink displays
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* subclasses for every display type implement the actual methods
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*/
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template <int PIN_CS, int PIN_BUSY, int PIN_RST, int PIN_DC, typename SPI> class Waveshare {
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static constexpr const char* NAME = "E-Ink";
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SPI& spi;
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public:
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Waveshare(SPI& spi) : spi(spi) {
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Log::addInfo(NAME, "ctor() CS:%d BUSY:%d RST:%d DC:%d", PIN_CS, PIN_BUSY, PIN_RST, PIN_DC);
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MyGPIO::setInput(PIN_BUSY);
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MyGPIO::setOutput(PIN_RST);
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MyGPIO::setOutput(PIN_DC);
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MyGPIO::setOutput(PIN_CS);
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}
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protected:
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void reset() {
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Log::addInfo(NAME, "reset()");
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MyGPIO::clear(PIN_RST);
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usleep(200*1000);
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MyGPIO::set(PIN_RST);
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usleep(200*1000);
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}
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void sendCommand(uint8_t command) {
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MyGPIO::clear(PIN_DC);
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transfer(command);
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}
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void sendData(uint8_t data) {
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MyGPIO::set(PIN_DC);
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transfer(data);
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}
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void transfer(uint8_t data) {
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MyGPIO::clear(PIN_CS); // select
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spi.writeByte(data);
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MyGPIO::clear(PIN_CS); // unselect
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}
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void waitUntilIdle() {
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Log::addInfo(NAME, "waitUntilIdle()");
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while(MyGPIO::get(PIN_BUSY) == 0) {usleep(200*1000);}
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Log::addInfo(NAME, "OK");
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}
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void lut(uint8_t c, uint8_t l, const uint8_t* p) {
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sendCommand(c);
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for (int i = 0; i < l; i++, p++) {
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sendData(*p);
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}
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}
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void send1(uint8_t cmd, uint8_t v1) {
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sendCommand(cmd);
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sendData(v1);
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}
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void send2(uint8_t cmd, uint8_t v1, uint8_t v2) {
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sendCommand(cmd);
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sendData(v1);
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sendData(v2);
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}
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void send3(uint8_t cmd, uint8_t v1, uint8_t v2, uint8_t v3) {
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sendCommand(cmd);
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sendData(v1);
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sendData(v2);
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sendData(v3);
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}
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void send4(uint8_t cmd, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4) {
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sendCommand(cmd);
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sendData(v1);
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sendData(v2);
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sendData(v3);
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sendData(v4);
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}
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void send5(uint8_t cmd, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5) {
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sendCommand(cmd);
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sendData(v1);
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sendData(v2);
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sendData(v3);
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sendData(v4);
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sendData(v5);
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}
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};
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#endif // E_INK_WAVESHARE
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