Add BaseUI support for L1 EInk (#7751)

* Add BaseUI support for L1 EInk

* Fix Eink offset

* Add joystick

* Updates

* Adjust Seeed Wio Tracker L1 E-Ink variant (#7326)

* Rename variant
Needs the -inkhud suffix to work correctly with the web flasher

* Display driver for ZJY122250_0213BAAMFGN

* Remove dead code from nicheGraphics.h
Remnants of T-Echo's nicheGraphics.h file, which was used as a template.

* Use ZJY122250_0213BAAMFGN driver
Improves display health. We don't need as many full refreshes now.

* Tidying

* board_check = true

---------

Co-authored-by: Ben Meadors <benmmeadors@gmail.com>

* Consolidation

* Add hack for existing InkHUD button functionality

---------

Co-authored-by: todd-herbert <herbert.todd@gmail.com>

src/configuration.h

@@ -135,7 +135,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 // -----------------------------------------------------------------------------
 // OLED & Input
 // -----------------------------------------------------------------------------
-#if defined(SEEED_WIO_TRACKER_L1)
+#if defined(SEEED_WIO_TRACKER_L1) && !defined(SEEED_WIO_TRACKER_L1_EINK)
 #define SSD1306_ADDRESS 0x3D
 #define USE_SH1106
 #else

src/graphics/EInkDisplay2.cpp

@@ -67,20 +67,28 @@ bool EInkDisplay::forceDisplay(uint32_t msecLimit)
 
     // FIXME - only draw bits have changed (use backbuf similar to the other displays)
     const bool flipped = config.display.flip_screen;
+    // HACK for L1 EInk
+#if defined(SEEED_WIO_TRACKER_L1_EINK)
+    // For SEEED_WIO_TRACKER_L1_EINK, setRotation(3) is correct but mirrored; flip both axes
+    for (uint32_t y = 0; y < displayHeight; y++) {
+        for (uint32_t x = 0; x < displayWidth; x++) {
+            auto b = buffer[x + (y / 8) * displayWidth];
+            auto isset = b & (1 << (y & 7));
+            adafruitDisplay->drawPixel((displayWidth - 1) - x, (displayHeight - 1) - y, isset ? GxEPD_BLACK : GxEPD_WHITE);
+        }
+    }
+#else
     for (uint32_t y = 0; y < displayHeight; y++) {
         for (uint32_t x = 0; x < displayWidth; x++) {
-            // get src pixel in the page based ordering the OLED lib uses FIXME, super inefficient
             auto b = buffer[x + (y / 8) * displayWidth];
             auto isset = b & (1 << (y & 7));
-
-            // Handle flip here, rather than with setRotation(),
-            // Avoids issues when display width is not a multiple of 8
             if (flipped)
                 adafruitDisplay->drawPixel((displayWidth - 1) - x, (displayHeight - 1) - y, isset ? GxEPD_BLACK : GxEPD_WHITE);
             else
                 adafruitDisplay->drawPixel(x, y, isset ? GxEPD_BLACK : GxEPD_WHITE);
         }
     }
+#endif
 
     // Trigger the refresh in GxEPD2
     LOG_DEBUG("Update E-Paper");
@@ -235,7 +243,7 @@ bool EInkDisplay::connect()
         adafruitDisplay->setRotation(1);
         adafruitDisplay->setPartialWindow(0, 0, EINK_WIDTH, EINK_HEIGHT);
     }
-#elif defined(HELTEC_MESH_POCKET)
+#elif defined(HELTEC_MESH_POCKET) || defined(SEEED_WIO_TRACKER_L1_EINK)
     {
         spi1 = &SPI1;
         spi1->begin();
@@ -249,6 +257,7 @@ bool EInkDisplay::connect()
         // Init GxEPD2
         adafruitDisplay->init();
         adafruitDisplay->setRotation(3);
+        adafruitDisplay->setPartialWindow(0, 0, EINK_WIDTH, EINK_HEIGHT);
     }
 #elif defined(HELTEC_WIRELESS_PAPER) || defined(HELTEC_VISION_MASTER_E213)
 

src/graphics/EInkDisplay2.h

@@ -84,7 +84,7 @@ class EInkDisplay : public OLEDDisplay
     SPIClass *hspi = NULL;
 #endif
 
-#if defined(HELTEC_MESH_POCKET)
+#if defined(HELTEC_MESH_POCKET) || defined(SEEED_WIO_TRACKER_L1_EINK)
     SPIClass *spi1 = NULL;
 #endif
 

src/graphics/niche/Drivers/EInk/ZJY122250_0213BAAMFGN.cpp

@@ -0,0 +1,68 @@
+#include "./ZJY122250_0213BAAMFGN.h"
+
+#ifdef MESHTASTIC_INCLUDE_NICHE_GRAPHICS
+
+using namespace NicheGraphics::Drivers;
+
+// Map the display controller IC's output to the connected panel
+void ZJY122250_0213BAAMFGN::configScanning()
+{
+    // "Driver output control"
+    // Scan gates from 0 to 249 (vertical resolution 250px)
+    sendCommand(0x01);
+    sendData(0xF9);
+    sendData(0x00);
+    sendData(0x00);
+}
+
+// Specify which information is used to control the sequence of voltages applied to move the pixels
+// - For this display, configUpdateSequence() specifies that a suitable LUT will be loaded from
+//   the controller IC's OTP memory, when the update procedure begins.
+void ZJY122250_0213BAAMFGN::configWaveform()
+{
+    switch (updateType) {
+    case FAST:
+        sendCommand(0x3C); // Border waveform:
+        sendData(0x80);    // VCOM
+        break;
+    case FULL:
+    default:
+        sendCommand(0x3C); // Border waveform:
+        sendData(0x01);    // Follow LUT 1 (blink same as white pixels)
+        break;
+    }
+
+    sendCommand(0x18); // Temperature sensor:
+    sendData(0x80);    // Use internal temperature sensor to select an appropriate refresh waveform
+}
+
+void ZJY122250_0213BAAMFGN::configUpdateSequence()
+{
+    switch (updateType) {
+    case FAST:
+        sendCommand(0x22); // Set "update sequence"
+        sendData(0xFF);    // Will load LUT from OTP memory, Display mode 2 "differential refresh"
+        break;
+
+    case FULL:
+    default:
+        sendCommand(0x22); // Set "update sequence"
+        sendData(0xF7);    // Will load LUT from OTP memory
+        break;
+    }
+}
+
+// Once the refresh operation has been started,
+// begin periodically polling the display to check for completion, using the normal Meshtastic threading code
+// Only used when refresh is "async"
+void ZJY122250_0213BAAMFGN::detachFromUpdate()
+{
+    switch (updateType) {
+    case FAST:
+        return beginPolling(50, 500); // At least 500ms for fast refresh
+    case FULL:
+    default:
+        return beginPolling(100, 2000); // At least 2 seconds for full refresh
+    }
+}
+#endif // MESHTASTIC_INCLUDE_NICHE_GRAPHICS

src/graphics/niche/Drivers/EInk/ZJY122250_0213BAAMFGN.h

@@ -0,0 +1,42 @@
+/*
+
+E-Ink display driver
+    - ZJY122250_0213BAAMFGN
+    - Manufacturer: Zhongjingyuan
+    - Size: 2.13 inch
+    - Resolution: 250px x 122px
+    - Flex connector marking (not a unique identifier): FPC-A002
+
+*/
+
+#pragma once
+
+#ifdef MESHTASTIC_INCLUDE_NICHE_GRAPHICS
+
+#include "configuration.h"
+
+#include "./SSD16XX.h"
+
+namespace NicheGraphics::Drivers
+{
+class ZJY122250_0213BAAMFGN : public SSD16XX
+{
+    // Display properties
+  private:
+    static constexpr uint32_t width = 122;
+    static constexpr uint32_t height = 250;
+    static constexpr UpdateTypes supported = (UpdateTypes)(FULL | FAST);
+
+  public:
+    ZJY122250_0213BAAMFGN() : SSD16XX(width, height, supported) {}
+
+  protected:
+    virtual void configScanning() override;
+    virtual void configWaveform() override;
+    virtual void configUpdateSequence() override;
+    void detachFromUpdate() override;
+};
+
+} // namespace NicheGraphics::Drivers
+
+#endif // MESHTASTIC_INCLUDE_NICHE_GRAPHICS

src/graphics/niche/InkHUD/DisplayHealth.cpp

@@ -7,12 +7,7 @@ using namespace NicheGraphics;
 
 // Timing for "maintenance"
 // Paying off full-refresh debt with unprovoked updates, if the display is not very active
-
-#ifdef SEEED_WIO_TRACKER_L1
-static constexpr uint32_t MAINTENANCE_MS_INITIAL = 5 * 1000UL;
-#else
 static constexpr uint32_t MAINTENANCE_MS_INITIAL = 60 * 1000UL;
-#endif
 static constexpr uint32_t MAINTENANCE_MS = 60 * 60 * 1000UL;
 
 InkHUD::DisplayHealth::DisplayHealth() : concurrency::OSThread("Mediator")