support RAK14004 in Canned Messages

src/input/InputBroker.h

@@ -2,6 +2,7 @@
 #include "Observer.h"
 
 #define ANYKEY 0xFF
+#define MATRIXKEY 0xFE
 
 typedef struct _InputEvent {
     const char* source;

src/input/kbI2cBase.cpp

@@ -3,12 +3,38 @@
 #include <Wire.h>
 
 extern uint8_t cardkb_found;
+extern uint8_t kb_model;
 
 KbI2cBase::KbI2cBase(const char *name) : concurrency::OSThread(name)
 {
     this->_originName = name;
 }
 
+uint8_t read_from_14004(uint8_t reg, uint8_t *data, uint8_t length)
+{
+  uint8_t readflag = 0;
+  Wire.beginTransmission(CARDKB_ADDR);
+  Wire.write(reg);
+  Wire.endTransmission();    // stop transmitting
+  delay(20);
+  Wire.requestFrom(CARDKB_ADDR, length);
+  int i = 0;
+  while ( Wire.available() ) // slave may send less than requested
+  {
+    data[i++] = Wire.read(); // receive a byte as a proper uint8_t
+    readflag = 1;
+  }
+  return readflag;
+}
+
+void write_to_14004(uint8_t reg, uint8_t data)
+{
+  Wire.beginTransmission(CARDKB_ADDR);
+  Wire.write(reg);
+  Wire.write(data);
+  Wire.endTransmission();    // stop transmitting
+}
+
 int32_t KbI2cBase::runOnce()
 {
     if (cardkb_found != CARDKB_ADDR){
@@ -16,6 +42,29 @@ int32_t KbI2cBase::runOnce()
         return INT32_MAX;
     }
 
+    if (kb_model == 0x02) {
+        // RAK14004
+        uint8_t rDataBuf[8] = {0};
+        uint8_t PrintDataBuf = 0;
+        if (read_from_14004(0x01, rDataBuf, 0x04) == 1) {
+            for (uint8_t aCount = 0; aCount < 0x04; aCount++) {
+                for (uint8_t bCount = 0; bCount < 0x04; bCount++ ) {
+                    if (((rDataBuf[aCount] >> bCount) & 0x01) == 0x01) {
+                        PrintDataBuf = aCount * 0x04 + bCount + 1;
+                    }
+                }
+            }
+        }
+        if (PrintDataBuf != 0) {
+            DEBUG_MSG("RAK14004 key 0x%x pressed\n", PrintDataBuf);
+            InputEvent e;
+            e.inputEvent = MATRIXKEY;
+            e.source = this->_originName;
+            e.kbchar = PrintDataBuf;
+            this->notifyObservers(&e);
+        }
+    } else {
+        // m5 cardkb
         Wire.requestFrom(CARDKB_ADDR, 1);
 
         while (Wire.available()) {
@@ -61,5 +110,6 @@ int32_t KbI2cBase::runOnce()
                 this->notifyObservers(&e);
             }
         }
+    }
     return 500;
 }

src/modules/CannedMessageModule.cpp

@@ -171,7 +171,15 @@ int CannedMessageModule::handleInputEvent(const InputEvent *event)
         this->lastTouchMillis = millis();
         validEvent = true;
     }
-
+    if (event->inputEvent == static_cast<char>(MATRIXKEY)) {
+        DEBUG_MSG("Canned message event Matrix key pressed\n");
+        // this will send the text immediately on matrix press
+        this->runState = CANNED_MESSAGE_RUN_STATE_ACTION_SELECT;
+        this->payload = event->kbchar;
+        this->currentMessageIndex = event->kbchar -1;
+        this->lastTouchMillis = millis();
+        validEvent = true;
+    }
 
     if (validEvent) {
         // Let runOnce to be called immediately.
@@ -203,7 +211,7 @@ int32_t CannedMessageModule::runOnce()
 {
     if ((!moduleConfig.canned_message.enabled) || (this->runState == CANNED_MESSAGE_RUN_STATE_DISABLED) ||
         (this->runState == CANNED_MESSAGE_RUN_STATE_INACTIVE)) {
-        return 30000; // TODO: should return MAX_VAL
+        return INT32_MAX;
     }
     DEBUG_MSG("Check status\n");
     UIFrameEvent e = {false, true};
@@ -235,7 +243,7 @@ int32_t CannedMessageModule::runOnce()
                 e.frameChanged = true;
             }
         } else {
-            if (strlen(this->messages[this->currentMessageIndex]) > 0) {
+            if ((this->messagesCount > this->currentMessageIndex) && (strlen(this->messages[this->currentMessageIndex]) > 0)) {
                 sendText(NODENUM_BROADCAST, this->messages[this->currentMessageIndex], true);
                 this->runState = CANNED_MESSAGE_RUN_STATE_SENDING_ACTIVE;
             } else {
@@ -316,7 +324,7 @@ int32_t CannedMessageModule::runOnce()
         return INACTIVATE_AFTER_MS;
     }
 
-    return 30000; // TODO: should return MAX_VAL
+    return INT32_MAX; 
 }
 
 const char *CannedMessageModule::getCurrentMessage()

src/modules/CannedMessageModule.h

@@ -9,6 +9,7 @@ enum cannedMessageModuleRunState
     CANNED_MESSAGE_RUN_STATE_INACTIVE,
     CANNED_MESSAGE_RUN_STATE_ACTIVE,
     CANNED_MESSAGE_RUN_STATE_FREETEXT,
+    CANNED_MESSAGE_RUN_STATE_MATRIX,
     CANNED_MESSAGE_RUN_STATE_SENDING_ACTIVE,
     CANNED_MESSAGE_RUN_STATE_ACTION_SELECT,
     CANNED_MESSAGE_RUN_STATE_ACTION_UP,