Added driver for Inkplate 4

Author: rsoric

src/Inkplate.cpp

@@ -19,30 +19,33 @@
 
 #include "Inkplate.h"
 
-#if defined(ARDUINO_INKPLATECOLOR) || defined(ARDUINO_INKPLATE2)
+#if defined(ARDUINO_INKPLATECOLOR) || defined(ARDUINO_INKPLATE2) || defined(ARDUINO_INKPLATE4)
 Inkplate::Inkplate() : Adafruit_GFX(E_INK_WIDTH, E_INK_HEIGHT), Graphics(E_INK_WIDTH, E_INK_HEIGHT)
 #else
 
 Inkplate::Inkplate(uint8_t _mode) : Adafruit_GFX(E_INK_WIDTH, E_INK_HEIGHT), Graphics(E_INK_WIDTH, E_INK_HEIGHT)
 #endif
 {
-#if !defined(ARDUINO_INKPLATECOLOR) && !defined(ARDUINO_INKPLATE2)
+#if !defined(ARDUINO_INKPLATECOLOR) && !defined(ARDUINO_INKPLATE2) && !defined(ARDUINO_INKPLATE4)
     setDisplayMode(_mode);
 #endif
 }
 
 /**
  * @brief       clearDisplay function clears memory buffer for display
  *
- * @note        This does not clears display, only buffer, you need to call
- * display() function after this to clear display
+ * @note        This does not clear the actual display, only the memory buffer, you need to call
+ * display() function after this to clear the display
  */
 void Inkplate::clearDisplay()
 {
 #if defined(ARDUINO_INKPLATECOLOR)
     memset(DMemory4Bit, WHITE << 4 | WHITE, E_INK_WIDTH * E_INK_HEIGHT / 2);
 #elif defined(ARDUINO_INKPLATE2)
-    memset(DMemory4Bit, 255, E_INK_WIDTH * E_INK_HEIGHT / 4);
+    memset(DMemory4Bit, 0xFF, E_INK_WIDTH * E_INK_HEIGHT / 4);
+#elif defined(ARDUINO_INKPLATE4)
+    memset(DMemory4Bit, 0xFF, (E_INK_WIDTH * E_INK_HEIGHT / 8));
+    memset(DMemory4Bit + (E_INK_WIDTH * E_INK_HEIGHT / 8), 0x00, (E_INK_WIDTH * E_INK_HEIGHT / 8));
 #else
     // Clear 1 bit per pixel display buffer
     if (getDisplayMode() == 0)
@@ -54,7 +57,7 @@ void Inkplate::clearDisplay()
 #endif
 }
 
-#if !defined(ARDUINO_INKPLATECOLOR) && !defined(ARDUINO_INKPLATE2)
+#if !defined(ARDUINO_INKPLATECOLOR) && !defined(ARDUINO_INKPLATE2) && !defined(ARDUINO_INKPLATE4)
 
 /**
  * @brief       display function update display with new data from buffer

src/Inkplate.h

@@ -49,7 +49,7 @@ struct waveformData
 class Inkplate : public System, public Graphics
 {
   public:
-#if defined(ARDUINO_INKPLATECOLOR) || defined(ARDUINO_INKPLATE2)
+#if defined(ARDUINO_INKPLATECOLOR) || defined(ARDUINO_INKPLATE2) || defined(ARDUINO_INKPLATE4)
     Inkplate();
 #else
     Inkplate(uint8_t _mode);
@@ -78,7 +78,7 @@ class Inkplate : public System, public Graphics
     bool getPanelDeepSleepState();
 
     void setIOExpanderForLowPower();
-#elif defined(ARDUINO_INKPLATE2)
+#elif defined(ARDUINO_INKPLATE2) || defined(ARDUINO_INKPLATE4)
     void clean();
 
     // These 4 functions need to refactored because conflicting functionalities
@@ -115,7 +115,7 @@ class Inkplate : public System, public Graphics
     void precalculateGamma(uint8_t *c, float gamma);
 
 
-#if defined(ARDUINO_INKPLATECOLOR) || defined(ARDUINO_INKPLATE2)
+#if defined(ARDUINO_INKPLATECOLOR) || defined(ARDUINO_INKPLATE2) || defined(ARDUINO_INKPLATE4)
     bool _panelState = false;
 
     void resetPanel();
@@ -152,7 +152,7 @@ class Inkplate : public System, public Graphics
     uint8_t waveform3Bit[8][9] = WAVEFORM3BIT;
 #endif
 
-#ifdef ARDUINO_INKPLATE2
+#if defined(ARDUINO_INKPLATE2) || defined(ARDUINO_INKPLATE4)
     bool waitForEpd(uint16_t _timeout);
 #endif
 };

src/boards/Inkplate2.h

@@ -2,7 +2,7 @@
  **************************************************
  *
  * @file        Inkplate2.h
- * @brief       Basic funtions for controling inkplate 2
+ * @brief       Basic funtions for controling Inkplate 2
  *
  *              https://github.com/e-radionicacom/Inkplate-Arduino-library
  *              For support, please reach over forums: forum.e-radionica.com/en