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#include "E213Display.h"
#include "../../MeshCore.h"
BaseDisplay* E213Display::detectEInk()
{
// Test 1: Logic of BUSY pin
// Determines controller IC manufacturer
// Fitipower: busy when LOW
// Solomon Systech: busy when HIGH
// Force display BUSY by holding reset pin active
pinMode(DISP_RST, OUTPUT);
digitalWrite(DISP_RST, LOW);
delay(10);
// Read whether pin is HIGH or LOW while busy
pinMode(DISP_BUSY, INPUT);
bool busyLogic = digitalRead(DISP_BUSY);
// Test complete. Release pin
pinMode(DISP_RST, INPUT);
if (busyLogic == LOW) {
#ifdef VISION_MASTER_E213
return new EInkDisplay_VisionMasterE213 ;
#else
return new EInkDisplay_WirelessPaperV1_1 ;
#endif
} else {// busy HIGH
#ifdef VISION_MASTER_E213
return new EInkDisplay_VisionMasterE213V1_1 ;
#else
return new EInkDisplay_WirelessPaperV1_1_1 ;
#endif
}
}
bool E213Display::begin() {
if (_init) return true;
powerOn();
if(display==NULL) {
display = detectEInk();
}
display->begin();
// Set to landscape mode rotated 180 degrees
display->setRotation(3);
_init = true;
_isOn = true;
clear();
display->fastmodeOn(); // Enable fast mode for quicker (partial) updates
return true;
}
void E213Display::powerOn() {
if (_periph_power) {
_periph_power->claim();
} else {
#ifdef PIN_VEXT_EN
pinMode(PIN_VEXT_EN, OUTPUT);
#ifdef PIN_VEXT_EN_ACTIVE
digitalWrite(PIN_VEXT_EN, PIN_VEXT_EN_ACTIVE);
#else
digitalWrite(PIN_VEXT_EN, LOW); // Active low
#endif
#endif
}
delay(50); // Allow power to stabilize
}
void E213Display::powerOff() {
if (_periph_power) {
_periph_power->release();
} else {
#ifdef PIN_VEXT_EN
#ifdef PIN_VEXT_EN_ACTIVE
digitalWrite(PIN_VEXT_EN, !PIN_VEXT_EN_ACTIVE);
#else
digitalWrite(PIN_VEXT_EN, HIGH); // Turn off power
#endif
#endif
}
}
void E213Display::turnOn() {
if (!_init) begin();
else if (!_isOn) {
powerOn();
display->fastmodeOn(); // Reinitialize display controller after power was cut
}
_isOn = true;
}
void E213Display::turnOff() {
if (_isOn) {
powerOff();
_isOn = false;
}
}
void E213Display::clear() {
display->clear();
}
void E213Display::startFrame(Color bkg) {
display_crc.reset();
// Fill screen with white first to ensure clean background
display->fillRect(0, 0, width(), height(), WHITE);
if (bkg == LIGHT) {
// Fill with black if light background requested (inverted for e-ink)
display->fillRect(0, 0, width(), height(), BLACK);
}
}
void E213Display::setTextSize(int sz) {
display_crc.update<int>(sz);
// The library handles text size internally
display->setTextSize(sz);
}
void E213Display::setColor(Color c) {
display_crc.update<Color>(c);
// implemented in individual display methods
}
void E213Display::setCursor(int x, int y) {
display_crc.update<int>(x);
display_crc.update<int>(y);
display->setCursor(x, y);
}
void E213Display::print(const char *str) {
display_crc.update<char>(str, strlen(str));
display->print(str);
}
void E213Display::fillRect(int x, int y, int w, int h) {
display_crc.update<int>(x);
display_crc.update<int>(y);
display_crc.update<int>(w);
display_crc.update<int>(h);
display->fillRect(x, y, w, h, BLACK);
}
void E213Display::drawRect(int x, int y, int w, int h) {
display_crc.update<int>(x);
display_crc.update<int>(y);
display_crc.update<int>(w);
display_crc.update<int>(h);
display->drawRect(x, y, w, h, BLACK);
}
void E213Display::drawXbm(int x, int y, const uint8_t *bits, int w, int h) {
display_crc.update<int>(x);
display_crc.update<int>(y);
display_crc.update<int>(w);
display_crc.update<int>(h);
display_crc.update<uint8_t>(bits, w * h / 8);
// Width in bytes for bitmap processing
uint16_t widthInBytes = (w + 7) / 8;
// Process the bitmap row by row
for (int by = 0; by < h; by++) {
// Scan across the row bit by bit
for (int bx = 0; bx < w; bx++) {
// Get the current bit using MSB ordering (like GxEPDDisplay)
uint16_t byteOffset = (by * widthInBytes) + (bx / 8);
uint8_t bitMask = 0x80 >> (bx & 7);
bool bitSet = bits[byteOffset] & bitMask;
// If the bit is set, draw the pixel
if (bitSet) {
display->drawPixel(x + bx, y + by, BLACK);
}
}
}
}
uint16_t E213Display::getTextWidth(const char *str) {
int16_t x1, y1;
uint16_t w, h;
display->getTextBounds(str, 0, 0, &x1, &y1, &w, &h);
return w;
}
void E213Display::endFrame() {
uint32_t crc = display_crc.finalize();
if (crc != last_display_crc_value) {
display->update();
last_display_crc_value = crc;
}
}
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