fixed some issue with SoftI2C not working (missing delay)

added code for a waveshare eInk refactored some old code to match with the new SoftI2C
2020-10-18 10:49:59 +02:00
parent 9c94faa24d
commit ac74587ee7
7 changed files with 426 additions and 44 deletions
--- a/ext/e-ink/Waveshare.h
+++ b/ext/e-ink/Waveshare.h
@@ -0,0 +1,102 @@
+#ifndef E_INK_WAVESHARE
+#define E_INK_WAVESHARE
+
+#include <cstdint>
+#include "../../Debug.h"
+
+
+
+
+/**
+ * base-class for Waveshare SPI E-Ink displays
+ * subclasses for every display type implement the actual methods
+ */
+template <int PIN_CS, int PIN_BUSY, int PIN_RST, int PIN_DC, typename SPI> class Waveshare {
+
+	static constexpr const char* NAME = "E-Ink";
+
+	SPI& spi;
+	
+public:
+
+	Waveshare(SPI& spi) : spi(spi) {
+		debugMod4(NAME, "ctor() CS:%d BUSY:%d RST:%d DC:%d", PIN_CS, PIN_BUSY, PIN_RST, PIN_DC);
+	    MyGPIO::setInput(PIN_BUSY);
+		MyGPIO::setOutput(PIN_RST);
+		MyGPIO::setOutput(PIN_DC);
+		MyGPIO::setOutput(PIN_CS);
+	}
+	
+protected:
+	
+	void reset() {
+		debugMod(NAME, "reset()");
+		MyGPIO::clear(PIN_RST);
+		usleep(200*1000);
+		MyGPIO::set(PIN_RST);
+		usleep(200*1000);
+	}
+	
+	void sendCommand(uint8_t command) {
+		MyGPIO::clear(PIN_DC);
+		transfer(command);
+	}
+
+	void sendData(uint8_t data) {
+		MyGPIO::set(PIN_DC);
+		transfer(data);
+	}
+		
+	void transfer(uint8_t data) {
+		MyGPIO::clear(PIN_CS);	// select
+		spi.writeByte(data);
+		MyGPIO::clear(PIN_CS);	// unselect
+	}
+	
+	void waitUntilIdle() {
+		debugMod(NAME, "waitUntilIdle()");
+		while(MyGPIO::get(PIN_BUSY) == 0) {usleep(200*1000);}
+		debugMod(NAME, "OK");	
+	}
+
+	void lut(uint8_t c, uint8_t l, const uint8_t* p) {
+		sendCommand(c);
+		for (int i = 0; i < l; i++, p++) {
+			sendData(*p);
+		}
+	}
+
+	void send1(uint8_t cmd, uint8_t v1) {
+		sendCommand(cmd);
+		sendData(v1);
+	}
+	void send2(uint8_t cmd, uint8_t v1, uint8_t v2) {
+		sendCommand(cmd);
+		sendData(v1);
+		sendData(v2);
+	}
+	void send3(uint8_t cmd, uint8_t v1, uint8_t v2, uint8_t v3) {
+		sendCommand(cmd);
+		sendData(v1);
+		sendData(v2);
+		sendData(v3);
+	}
+	void send4(uint8_t cmd, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4) {
+		sendCommand(cmd);
+		sendData(v1);
+		sendData(v2);
+		sendData(v3);
+		sendData(v4);
+	}
+	void send5(uint8_t cmd, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5) {
+		sendCommand(cmd);
+		sendData(v1);
+		sendData(v2);
+		sendData(v3);
+		sendData(v4);
+		sendData(v5);
+	}
+
+};
+
+#endif // E_INK_WAVESHARE