Seesaw Rotary (#7310)

* Initial add of Adafruit seesaw encoder

* Fully wire up seesaw

* Trunk

* Add #include configuration.h back to unbreak logging

* Tryfix the dumb compilation error

---------

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

arch/portduino/portduino.ini

@@ -30,6 +30,8 @@ lib_deps =
   lovyan03/LovyanGFX@^1.2.0
   # renovate: datasource=git-refs depName=libch341-spi-userspace packageName=https://github.com/pine64/libch341-spi-userspace gitBranch=main
   https://github.com/pine64/libch341-spi-userspace/archive/af9bc27c9c30fa90772279925b7c5913dff789b4.zip
+  # renovate: datasource=custom.pio depName=adafruit/Adafruit seesaw Library packageName=adafruit/library/Adafruit seesaw Library
+	adafruit/Adafruit seesaw Library@1.7.9
 
 build_flags =
   ${arduino_base.build_flags}
@@ -48,4 +50,7 @@ build_flags =
   -std=gnu17
   -std=c++17
 
-lib_ignore = Adafruit NeoPixel
+lib_ignore =
+  Adafruit NeoPixel
+  Adafruit ST7735 and ST7789 Library
+  SD

src/input/SeesawRotary.cpp

@@ -0,0 +1,83 @@
+#ifdef ARCH_PORTDUINO
+#include "SeesawRotary.h"
+#include "input/InputBroker.h"
+
+using namespace concurrency;
+
+SeesawRotary *seesawRotary;
+
+SeesawRotary::SeesawRotary(const char *name) : OSThread(name)
+{
+    _originName = name;
+}
+
+bool SeesawRotary::init()
+{
+    if (inputBroker)
+        inputBroker->registerSource(this);
+
+    if (!ss.begin(SEESAW_ADDR)) {
+        return false;
+    }
+    // attachButtonInterrupts();
+
+    uint32_t version = ((ss.getVersion() >> 16) & 0xFFFF);
+    if (version != 4991) {
+        LOG_WARN("Wrong firmware loaded? %u", version);
+    } else {
+        LOG_INFO("Found Product 4991");
+    }
+    /*
+    #ifdef ARCH_ESP32
+        // Register callbacks for before and after lightsleep
+        // Used to detach and reattach interrupts
+        lsObserver.observe(&notifyLightSleep);
+        lsEndObserver.observe(&notifyLightSleepEnd);
+    #endif
+    */
+    ss.pinMode(SS_SWITCH, INPUT_PULLUP);
+
+    // get starting position
+    encoder_position = ss.getEncoderPosition();
+
+    ss.setGPIOInterrupts((uint32_t)1 << SS_SWITCH, 1);
+    ss.enableEncoderInterrupt();
+    canSleep = true; // Assume we should not keep the board awake
+
+    return true;
+}
+
+int32_t SeesawRotary::runOnce()
+{
+    InputEvent e;
+    e.inputEvent = INPUT_BROKER_NONE;
+    bool currentlyPressed = !ss.digitalRead(SS_SWITCH);
+
+    if (currentlyPressed && !wasPressed) {
+        e.inputEvent = INPUT_BROKER_SELECT;
+    }
+    wasPressed = currentlyPressed;
+
+    int32_t new_position = ss.getEncoderPosition();
+    // did we move arounde?
+    if (encoder_position != new_position) {
+        if (encoder_position == 0 && new_position != 1) {
+            e.inputEvent = INPUT_BROKER_ALT_PRESS;
+        } else if (new_position == 0 && encoder_position != 1) {
+            e.inputEvent = INPUT_BROKER_USER_PRESS;
+        } else if (new_position > encoder_position) {
+            e.inputEvent = INPUT_BROKER_USER_PRESS;
+        } else {
+            e.inputEvent = INPUT_BROKER_ALT_PRESS;
+        }
+        encoder_position = new_position;
+    }
+    if (e.inputEvent != INPUT_BROKER_NONE) {
+        e.source = this->_originName;
+        e.kbchar = 0x00;
+        this->notifyObservers(&e);
+    }
+
+    return 50;
+}
+#endif

src/input/SeesawRotary.h

@@ -0,0 +1,29 @@
+#pragma once
+#ifdef ARCH_PORTDUINO
+
+#include "Adafruit_seesaw.h"
+#include "InputBroker.h"
+#include "concurrency/OSThread.h"
+#include "configuration.h"
+
+#define SS_SWITCH 24
+#define SS_NEOPIX 6
+
+#define SEESAW_ADDR 0x36
+
+class SeesawRotary : public Observable<const InputEvent *>, public concurrency::OSThread
+{
+  public:
+    const char *_originName;
+    bool init();
+    SeesawRotary(const char *name);
+    int32_t runOnce() override;
+
+  private:
+    Adafruit_seesaw ss;
+    int32_t encoder_position;
+    bool wasPressed = false;
+};
+
+extern SeesawRotary *seesawRotary;
+#endif

src/modules/Modules.cpp

@@ -53,6 +53,7 @@
 #endif
 #if ARCH_PORTDUINO
 #include "input/LinuxInputImpl.h"
+#include "input/SeesawRotary.h"
 #include "modules/Telemetry/HostMetrics.h"
 #if !MESHTASTIC_EXCLUDE_STOREFORWARD
 #include "modules/StoreForwardModule.h"
@@ -163,7 +164,6 @@ void setupModules()
         // Example: Put your module here
         // new ReplyModule();
 #if (HAS_BUTTON || ARCH_PORTDUINO) && !MESHTASTIC_EXCLUDE_INPUTBROKER
-
         if (config.display.displaymode != meshtastic_Config_DisplayConfig_DisplayMode_COLOR) {
             rotaryEncoderInterruptImpl1 = new RotaryEncoderInterruptImpl1();
             if (!rotaryEncoderInterruptImpl1->init()) {
@@ -189,6 +189,11 @@ void setupModules()
 #endif // HAS_BUTTON
 #if ARCH_PORTDUINO
         if (config.display.displaymode != meshtastic_Config_DisplayConfig_DisplayMode_COLOR) {
+            seesawRotary = new SeesawRotary("SeesawRotary");
+            if (!seesawRotary->init()) {
+                delete seesawRotary;
+                seesawRotary = nullptr;
+            }
             aLinuxInputImpl = new LinuxInputImpl();
             aLinuxInputImpl->init();
         }