Merge 70ec2c84ed into ba296db701

boards/t-deck-pro.json

@@ -0,0 +1,43 @@
+{
+  "build": {
+    "arduino": {
+      "ldscript": "esp32s3_out.ld",
+      "memory_type": "qio_qspi",
+      "partitions": "default_16MB.csv"
+    },
+    "core": "esp32",
+    "extra_flags": [
+      "-DBOARD_HAS_PSRAM",
+      "-DARDUINO_USB_CDC_ON_BOOT=1",
+      "-DARDUINO_USB_MODE=1",
+      "-DARDUINO_RUNNING_CORE=1",
+      "-DARDUINO_EVENT_RUNNING_CORE=1"
+    ],
+    "f_cpu": "240000000L",
+    "f_flash": "80000000L",
+    "flash_mode": "qio",
+    "hwids": [["0x303A", "0x1001"]],
+    "mcu": "esp32s3",
+    "variant": "esp32s3"
+  },
+  "connectivity": ["wifi", "bluetooth", "lora"],
+  "debug": {
+    "default_tool": "esp-builtin",
+    "onboard_tools": ["esp-builtin"],
+    "openocd_target": "esp32s3.cfg"
+  },
+  "frameworks": ["arduino", "espidf"],
+  "name": "LilyGo T-Deck Pro S3 (16M Flash 8M QSPI PSRAM )",
+  "upload": {
+    "flash_size": "16MB",
+    "maximum_ram_size": 327680,
+    "maximum_size": 16777216,
+    "require_upload_port": true,
+    "speed": 921600
+  },
+  "monitor": {
+    "speed": 115200
+  },
+  "url": "https://lilygo.cc/products/t-deck-pro",
+  "vendor": "LilyGo"
+}

src/Power.cpp

@@ -120,6 +120,11 @@ NullSensor max17048Sensor;
 RAK9154Sensor rak9154Sensor;
 #endif
 
+#ifdef HAS_PPM
+// note: XPOWERS_CHIP_XXX must be defined in variant.h
+#include <XPowersLib.h>
+#endif
+
 #ifdef HAS_PMU
 XPowersLibInterface *PMU = NULL;
 #else
@@ -665,6 +670,8 @@ bool Power::setup()
     bool found = axpChipInit();
     if (!found)
         found = lipoInit();
+    if (!found)
+        found = lipoChargerInit();
     if (!found)
         found = analogInit();
 
@@ -1235,3 +1242,111 @@ bool Power::lipoInit()
     return false;
 }
 #endif
+
+#if defined(HAS_PPM) && HAS_PPM
+
+/**
+ * Adapter class for BQ25896 Lipo battery charger.
+ */
+class LipoCharger : public HasBatteryLevel
+{
+  private:
+    XPowersPPM *ppm = nullptr;
+
+  public:
+    /**
+     * Init the I2C BQ25896 Lipo battery charger
+     */
+    bool runOnce()
+    {
+        if (ppm == nullptr) {
+            ppm = new XPowersPPM;
+            bool result = ppm->init(Wire, I2C_SDA, I2C_SCL, BQ25896_ADDR);
+            if (result) {
+                LOG_INFO("PPM BQ25896 init succeeded");
+                // Set the minimum operating voltage. Below this voltage, the PPM will protect
+                ppm->setSysPowerDownVoltage(3100);
+
+                // Set input current limit, default is 500mA
+                ppm->setInputCurrentLimit(3250);
+
+                // Disable current limit pin
+                ppm->disableCurrentLimitPin();
+
+                // Set the charging target voltage, Range:3840 ~ 4608mV ,step:16 mV
+                ppm->setChargeTargetVoltage(4208);
+
+                // Set the precharge current , Range: 64mA ~ 1024mA ,step:64mA
+                ppm->setPrechargeCurr(64);
+
+                // The premise is that limit pin is disabled, or it will
+                // only follow the maximum charging current set by limit pin.
+                // Set the charging current , Range:0~5056mA ,step:64mA
+                ppm->setChargerConstantCurr(1024);
+
+                // To obtain voltage data, the ADC must be enabled first
+                ppm->enableMeasure();
+
+                // Turn on charging function
+                // If there is no battery connected, do not turn on the charging function
+                ppm->enableCharge();
+                return true;
+            } else {
+                LOG_WARN("PPM BQ25896 init failed");
+                delete ppm;
+                ppm = nullptr;
+            }
+        }
+        return false;
+    }
+
+    /**
+     * Battery state of charge, from 0 to 100 or -1 for unknown
+     */
+    virtual int getBatteryPercent() override { return -1; }
+
+    /**
+     * The raw voltage of the battery in millivolts, or NAN if unknown
+     */
+    virtual uint16_t getBattVoltage() override { return ppm->getBattVoltage(); }
+
+    /**
+     * return true if there is a battery installed in this unit
+     */
+    virtual bool isBatteryConnect() override { return ppm->getBattVoltage() > 0; }
+
+    /**
+     * return true if there is an external power source detected
+     */
+    virtual bool isVbusIn() override { return ppm->isVbusIn(); }
+
+    /**
+     * return true if the battery is currently charging
+     */
+    virtual bool isCharging() override { return ppm->isCharging(); }
+};
+
+LipoCharger lipoCharger;
+
+/**
+ * Init the Lipo battery charger
+ */
+bool Power::lipoChargerInit()
+{
+    bool result = lipoCharger.runOnce();
+    LOG_DEBUG("Power::lipoChargerInit lipo sensor is %s", result ? "ready" : "not ready yet");
+    if (!result)
+        return false;
+    batteryLevel = &lipoCharger;
+    return true;
+}
+
+#else
+/**
+ * The Lipo battery level sensor is unavailable - default to AnalogBatteryLevel
+ */
+bool Power::lipoChargerInit()
+{
+    return false;
+}
+#endif

src/configuration.h

@@ -114,11 +114,12 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 // Define if screen should be mirrored left to right
 // #define SCREEN_MIRROR
 
-// I2C Keyboards (M5Stack, RAK14004, T-Deck)
+// I2C Keyboards (M5Stack, RAK14004, T-Deck, T-Deck Pro, T-Lora Pager, CardKB, BBQ10, MPR121, TCA8418)
 #define CARDKB_ADDR 0x5F
 #define TDECK_KB_ADDR 0x55
 #define BBQ10_KB_ADDR 0x1F
 #define MPR121_KB_ADDR 0x5A
+#define TCA8418_KB_ADDR 0x34
 
 // -----------------------------------------------------------------------------
 // SENSOR
@@ -156,8 +157,11 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define MLX90614_ADDR_DEF 0x5A
 #define CGRADSENS_ADDR 0x66
 #define LTR390UV_ADDR 0x53
-#define XPOWERS_AXP192_AXP2101_ADDRESS 0x34 // same adress as TCA8418
+#define XPOWERS_AXP192_AXP2101_ADDRESS 0x34 // same adress as TCA8418_KB
 #define PCT2075_ADDR 0x37
+#define BQ27220_ADDR 0x55 // same address as TDECK_KB
+#define BQ25896_ADDR 0x6B
+#define LTR553ALS_ADDR 0x23
 
 // -----------------------------------------------------------------------------
 // ACCELEROMETER
@@ -171,6 +175,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define BMX160_ADDR 0x69
 #define ICM20948_ADDR 0x69
 #define ICM20948_ADDR_ALT 0x68
+#define BHI260AP_ADDR 0x28
 
 // -----------------------------------------------------------------------------
 // LED
@@ -192,6 +197,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 // Touchscreen
 // -----------------------------------------------------------------------------
 #define FT6336U_ADDR 0x48
+#define CST328_ADDR 0x1A
 
 // -----------------------------------------------------------------------------
 // BIAS-T Generator

src/detect/ScanI2C.h

@@ -72,6 +72,11 @@ class ScanI2C
         LTR390UV,
         TCA8418KB,
         PCT2075,
+        CST328,
+        BQ25896,
+        BQ27220,
+        LTR553ALS,
+        BHI260AP
     } DeviceType;
 
     // typedef uint8_t DeviceAddress;

src/detect/ScanI2CTwoWire.cpp

@@ -206,7 +206,17 @@ void ScanI2CTwoWire::scanPort(I2CPort port, uint8_t *address, uint8_t asize)
                 }
                 break;
 
-                SCAN_SIMPLE_CASE(TDECK_KB_ADDR, TDECKKB, "T-Deck keyboard", (uint8_t)addr.address);
+            case TDECK_KB_ADDR:
+                // Do we have the T-Deck keyboard or the T-Deck Pro battery sensor?
+                registerValue = getRegisterValue(ScanI2CTwoWire::RegisterLocation(addr, 0x40), 2); // MACData
+                if (registerValue != 0) {
+                    logFoundDevice("BQ27220", (uint8_t)addr.address);
+                    type = BQ27220;
+                } else {
+                    logFoundDevice("TDECKKB", (uint8_t)addr.address);
+                    type = TDECKKB;
+                }
+                break;
                 SCAN_SIMPLE_CASE(BBQ10_KB_ADDR, BBQ10KB, "BB Q10", (uint8_t)addr.address);
 
                 SCAN_SIMPLE_CASE(ST7567_ADDRESS, SCREEN_ST7567, "ST7567", (uint8_t)addr.address);
@@ -396,6 +406,12 @@ void ScanI2CTwoWire::scanPort(I2CPort port, uint8_t *address, uint8_t asize)
                     logFoundDevice("BQ24295", (uint8_t)addr.address);
                     break;
                 }
+                registerValue = getRegisterValue(ScanI2CTwoWire::RegisterLocation(addr, 0x14), 1); // get ID
+                if ((registerValue & 0b00000011) == 0b00000010) {
+                    type = BQ25896;
+                    logFoundDevice("BQ25896", (uint8_t)addr.address);
+                    break;
+                }
                 registerValue = getRegisterValue(ScanI2CTwoWire::RegisterLocation(addr, 0x0F), 1); // get ID
                 if (registerValue == 0x6A) {
                     type = LSM6DS3;
@@ -435,6 +451,9 @@ void ScanI2CTwoWire::scanPort(I2CPort port, uint8_t *address, uint8_t asize)
                 SCAN_SIMPLE_CASE(DFROBOT_RAIN_ADDR, DFROBOT_RAIN, "DFRobot Rain Gauge", (uint8_t)addr.address);
                 SCAN_SIMPLE_CASE(LTR390UV_ADDR, LTR390UV, "LTR390UV", (uint8_t)addr.address);
                 SCAN_SIMPLE_CASE(PCT2075_ADDR, PCT2075, "PCT2075", (uint8_t)addr.address);
+                SCAN_SIMPLE_CASE(CST328_ADDR, CST328, "CST328", (uint8_t)addr.address);
+                SCAN_SIMPLE_CASE(LTR553ALS_ADDR, LTR553ALS, "LTR553ALS", (uint8_t)addr.address);
+                SCAN_SIMPLE_CASE(BHI260AP_ADDR, BHI260AP, "BHI260AP", (uint8_t)addr.address);
 #ifdef HAS_TPS65233
                 SCAN_SIMPLE_CASE(TPS65233_ADDR, TPS65233, "TPS65233", (uint8_t)addr.address);
 #endif

src/graphics/EInkDisplay2.cpp

@@ -203,7 +203,7 @@ bool EInkDisplay::connect()
         adafruitDisplay->setRotation(0);
         adafruitDisplay->setPartialWindow(0, 0, EINK_WIDTH, EINK_HEIGHT);
     }
-#elif defined(M5_COREINK)
+#elif defined(M5_COREINK) || defined(T_DECK_PRO)
     auto lowLevel = new EINK_DISPLAY_MODEL(PIN_EINK_CS, PIN_EINK_DC, PIN_EINK_RES, PIN_EINK_BUSY);
     adafruitDisplay = new GxEPD2_BW<EINK_DISPLAY_MODEL, EINK_DISPLAY_MODEL::HEIGHT>(*lowLevel);
     adafruitDisplay->init(115200, true, 40, false, SPI, SPISettings(4000000, MSBFIRST, SPI_MODE0));

src/graphics/Screen.cpp

@@ -1795,7 +1795,7 @@ void Screen::setup()
             new TouchScreenImpl1(dispdev->getWidth(), dispdev->getHeight(), static_cast<TFTDisplay *>(dispdev)->getTouch);
         touchScreenImpl1->init();
     }
-#elif HAS_TOUCHSCREEN
+#elif HAS_TOUCHSCREEN && !defined(USE_EINK)
     touchScreenImpl1 =
         new TouchScreenImpl1(dispdev->getWidth(), dispdev->getHeight(), static_cast<TFTDisplay *>(dispdev)->getTouch);
     touchScreenImpl1->init();

src/input/TCA8418Keyboard.cpp

@@ -1,116 +1,18 @@
-// Based on the MPR121 Keyboard and Adafruit TCA8418 library
-
 #include "TCA8418Keyboard.h"
-#include "configuration.h"
-
-#include <Arduino.h>
-
-// REGISTERS
-// #define _TCA8418_REG_RESERVED 0x00
-#define _TCA8418_REG_CFG 0x01             // Configuration register
-#define _TCA8418_REG_INT_STAT 0x02        // Interrupt status
-#define _TCA8418_REG_KEY_LCK_EC 0x03      // Key lock and event counter
-#define _TCA8418_REG_KEY_EVENT_A 0x04     // Key event register A
-#define _TCA8418_REG_KEY_EVENT_B 0x05     // Key event register B
-#define _TCA8418_REG_KEY_EVENT_C 0x06     // Key event register C
-#define _TCA8418_REG_KEY_EVENT_D 0x07     // Key event register D
-#define _TCA8418_REG_KEY_EVENT_E 0x08     // Key event register E
-#define _TCA8418_REG_KEY_EVENT_F 0x09     // Key event register F
-#define _TCA8418_REG_KEY_EVENT_G 0x0A     // Key event register G
-#define _TCA8418_REG_KEY_EVENT_H 0x0B     // Key event register H
-#define _TCA8418_REG_KEY_EVENT_I 0x0C     // Key event register I
-#define _TCA8418_REG_KEY_EVENT_J 0x0D     // Key event register J
-#define _TCA8418_REG_KP_LCK_TIMER 0x0E    // Keypad lock1 to lock2 timer
-#define _TCA8418_REG_UNLOCK_1 0x0F        // Unlock register 1
-#define _TCA8418_REG_UNLOCK_2 0x10        // Unlock register 2
-#define _TCA8418_REG_GPIO_INT_STAT_1 0x11 // GPIO interrupt status 1
-#define _TCA8418_REG_GPIO_INT_STAT_2 0x12 // GPIO interrupt status 2
-#define _TCA8418_REG_GPIO_INT_STAT_3 0x13 // GPIO interrupt status 3
-#define _TCA8418_REG_GPIO_DAT_STAT_1 0x14 // GPIO data status 1
-#define _TCA8418_REG_GPIO_DAT_STAT_2 0x15 // GPIO data status 2
-#define _TCA8418_REG_GPIO_DAT_STAT_3 0x16 // GPIO data status 3
-#define _TCA8418_REG_GPIO_DAT_OUT_1 0x17  // GPIO data out 1
-#define _TCA8418_REG_GPIO_DAT_OUT_2 0x18  // GPIO data out 2
-#define _TCA8418_REG_GPIO_DAT_OUT_3 0x19  // GPIO data out 3
-#define _TCA8418_REG_GPIO_INT_EN_1 0x1A   // GPIO interrupt enable 1
-#define _TCA8418_REG_GPIO_INT_EN_2 0x1B   // GPIO interrupt enable 2
-#define _TCA8418_REG_GPIO_INT_EN_3 0x1C   // GPIO interrupt enable 3
-#define _TCA8418_REG_KP_GPIO_1 0x1D       // Keypad/GPIO select 1
-#define _TCA8418_REG_KP_GPIO_2 0x1E       // Keypad/GPIO select 2
-#define _TCA8418_REG_KP_GPIO_3 0x1F       // Keypad/GPIO select 3
-#define _TCA8418_REG_GPI_EM_1 0x20        // GPI event mode 1
-#define _TCA8418_REG_GPI_EM_2 0x21        // GPI event mode 2
-#define _TCA8418_REG_GPI_EM_3 0x22        // GPI event mode 3
-#define _TCA8418_REG_GPIO_DIR_1 0x23      // GPIO data direction 1
-#define _TCA8418_REG_GPIO_DIR_2 0x24      // GPIO data direction 2
-#define _TCA8418_REG_GPIO_DIR_3 0x25      // GPIO data direction 3
-#define _TCA8418_REG_GPIO_INT_LVL_1 0x26  // GPIO edge/level detect 1
-#define _TCA8418_REG_GPIO_INT_LVL_2 0x27  // GPIO edge/level detect 2
-#define _TCA8418_REG_GPIO_INT_LVL_3 0x28  // GPIO edge/level detect 3
-#define _TCA8418_REG_DEBOUNCE_DIS_1 0x29  // Debounce disable 1
-#define _TCA8418_REG_DEBOUNCE_DIS_2 0x2A  // Debounce disable 2
-#define _TCA8418_REG_DEBOUNCE_DIS_3 0x2B  // Debounce disable 3
-#define _TCA8418_REG_GPIO_PULL_1 0x2C     // GPIO pull-up disable 1
-#define _TCA8418_REG_GPIO_PULL_2 0x2D     // GPIO pull-up disable 2
-#define _TCA8418_REG_GPIO_PULL_3 0x2E     // GPIO pull-up disable 3
-// #define _TCA8418_REG_RESERVED 0x2F
-
-// FIELDS CONFIG REGISTER  1
-#define _TCA8418_REG_CFG_AI 0x80           // Auto-increment for read/write
-#define _TCA8418_REG_CFG_GPI_E_CGF 0x40    // Event mode config
-#define _TCA8418_REG_CFG_OVR_FLOW_M 0x20   // Overflow mode enable
-#define _TCA8418_REG_CFG_INT_CFG 0x10      // Interrupt config
-#define _TCA8418_REG_CFG_OVR_FLOW_IEN 0x08 // Overflow interrupt enable
-#define _TCA8418_REG_CFG_K_LCK_IEN 0x04    // Keypad lock interrupt enable
-#define _TCA8418_REG_CFG_GPI_IEN 0x02      // GPI interrupt enable
-#define _TCA8418_REG_CFG_KE_IEN 0x01       // Key events interrupt enable
-
-// FIELDS INT_STAT REGISTER  2
-#define _TCA8418_REG_STAT_CAD_INT 0x10      // Ctrl-alt-del seq status
-#define _TCA8418_REG_STAT_OVR_FLOW_INT 0x08 // Overflow interrupt status
-#define _TCA8418_REG_STAT_K_LCK_INT 0x04    // Key lock interrupt status
-#define _TCA8418_REG_STAT_GPI_INT 0x02      // GPI interrupt status
-#define _TCA8418_REG_STAT_K_INT 0x01        // Key events interrupt status
-
-// FIELDS  KEY_LCK_EC REGISTER 3
-#define _TCA8418_REG_LCK_EC_K_LCK_EN 0x40 // Key lock enable
-#define _TCA8418_REG_LCK_EC_LCK_2 0x20    // Keypad lock status 2
-#define _TCA8418_REG_LCK_EC_LCK_1 0x10    // Keypad lock status 1
-#define _TCA8418_REG_LCK_EC_KLEC_3 0x08   // Key event count bit 3
-#define _TCA8418_REG_LCK_EC_KLEC_2 0x04   // Key event count bit 2
-#define _TCA8418_REG_LCK_EC_KLEC_1 0x02   // Key event count bit 1
-#define _TCA8418_REG_LCK_EC_KLEC_0 0x01   // Key event count bit 0
-
-// Pin IDs for matrix rows/columns
-enum {
-    _TCA8418_ROW0, // Pin ID for row 0
-    _TCA8418_ROW1, // Pin ID for row 1
-    _TCA8418_ROW2, // Pin ID for row 2
-    _TCA8418_ROW3, // Pin ID for row 3
-    _TCA8418_ROW4, // Pin ID for row 4
-    _TCA8418_ROW5, // Pin ID for row 5
-    _TCA8418_ROW6, // Pin ID for row 6
-    _TCA8418_ROW7, // Pin ID for row 7
-    _TCA8418_COL0, // Pin ID for column 0
-    _TCA8418_COL1, // Pin ID for column 1
-    _TCA8418_COL2, // Pin ID for column 2
-    _TCA8418_COL3, // Pin ID for column 3
-    _TCA8418_COL4, // Pin ID for column 4
-    _TCA8418_COL5, // Pin ID for column 5
-    _TCA8418_COL6, // Pin ID for column 6
-    _TCA8418_COL7, // Pin ID for column 7
-    _TCA8418_COL8, // Pin ID for column 8
-    _TCA8418_COL9  // Pin ID for column 9
-};
 
 #define _TCA8418_COLS 3
 #define _TCA8418_ROWS 4
 #define _TCA8418_NUM_KEYS 12
 
-uint8_t TCA8418TapMod[_TCA8418_NUM_KEYS] = {13, 7, 7, 7, 7, 7,
-                                            9,  7, 9, 2, 2, 2}; // Num chars per key, Modulus for rotating through characters
+#define _TCA8418_LONG_PRESS_THRESHOLD 2000
+#define _TCA8418_MULTI_TAP_THRESHOLD 750
 
-unsigned char TCA8418TapMap[_TCA8418_NUM_KEYS][13] = {
+using Key = TCA8418KeyboardBase::TCA8418Key;
+
+// Num chars per key, Modulus for rotating through characters
+static uint8_t TCA8418TapMod[_TCA8418_NUM_KEYS] = {13, 7, 7, 7, 7, 7, 9, 7, 9, 2, 2, 2};
+
+static unsigned char TCA8418TapMap[_TCA8418_NUM_KEYS][13] = {
     {'1', '.', ',', '?', '!', ':', ';', '-', '_', '\\', '/', '(', ')'}, // 1
     {'2', 'a', 'b', 'c', 'A', 'B', 'C'},                                // 2
     {'3', 'd', 'e', 'f', 'D', 'E', 'F'},                                // 3
@@ -125,177 +27,35 @@ unsigned char TCA8418TapMap[_TCA8418_NUM_KEYS][13] = {
     {'#', '@'},                                                         // #
 };
 
-unsigned char TCA8418LongPressMap[_TCA8418_NUM_KEYS] = {
-    _TCA8418_ESC,   // 1
-    _TCA8418_UP,    // 2
-    _TCA8418_NONE,  // 3
-    _TCA8418_LEFT,  // 4
-    _TCA8418_NONE,  // 5
-    _TCA8418_RIGHT, // 6
-    _TCA8418_NONE,  // 7
-    _TCA8418_DOWN,  // 8
-    _TCA8418_NONE,  // 9
-    _TCA8418_BSP,   // *
-    _TCA8418_NONE,  // 0
-    _TCA8418_NONE,  // #
+static unsigned char TCA8418LongPressMap[_TCA8418_NUM_KEYS] = {
+    Key::ESC,   // 1
+    Key::UP,    // 2
+    Key::NONE,  // 3
+    Key::LEFT,  // 4
+    Key::NONE,  // 5
+    Key::RIGHT, // 6
+    Key::NONE,  // 7
+    Key::DOWN,  // 8
+    Key::NONE,  // 9
+    Key::BSP,   // *
+    Key::NONE,  // 0
+    Key::NONE,  // #
 };
 
-#define _TCA8418_LONG_PRESS_THRESHOLD 2000
-#define _TCA8418_MULTI_TAP_THRESHOLD 750
-
-TCA8418Keyboard::TCA8418Keyboard() : m_wire(nullptr), m_addr(0), readCallback(nullptr), writeCallback(nullptr)
+TCA8418Keyboard::TCA8418Keyboard()
+    : TCA8418KeyboardBase(_TCA8418_ROWS, _TCA8418_COLS), last_key(-1), next_key(-1), last_tap(0L), char_idx(0), tap_interval(0),
+      should_backspace(false)
 {
-    state = Init;
-    last_key = -1;
-    next_key = -1;
-    should_backspace = false;
-    last_tap = 0L;
-    char_idx = 0;
-    tap_interval = 0;
-    backlight_on = true;
-    queue = "";
-}
-
-void TCA8418Keyboard::begin(uint8_t addr, TwoWire *wire)
-{
-    m_addr = addr;
-    m_wire = wire;
-
-    m_wire->begin();
-
-    reset();
-}
-
-void TCA8418Keyboard::begin(i2c_com_fptr_t r, i2c_com_fptr_t w, uint8_t addr)
-{
-    m_addr = addr;
-    m_wire = nullptr;
-    writeCallback = w;
-    readCallback = r;
-    reset();
 }
 
 void TCA8418Keyboard::reset()
 {
-    LOG_DEBUG("TCA8418 Reset");
-    //  GPIO
-    //  set default all GIO pins to INPUT
-    writeRegister(_TCA8418_REG_GPIO_DIR_1, 0x00);
-    writeRegister(_TCA8418_REG_GPIO_DIR_2, 0x00);
+    TCA8418KeyboardBase::reset();
+
     // Set COL9 as GPIO output
-    writeRegister(_TCA8418_REG_GPIO_DIR_3, 0x02);
+    writeRegister(TCA8418_REG_GPIO_DIR_3, 0x02);
     // Switch off keyboard backlight (COL9 = LOW)
-    writeRegister(_TCA8418_REG_GPIO_DAT_OUT_3, 0x00);
-
-    //  add all pins to key events
-    writeRegister(_TCA8418_REG_GPI_EM_1, 0xFF);
-    writeRegister(_TCA8418_REG_GPI_EM_2, 0xFF);
-    writeRegister(_TCA8418_REG_GPI_EM_3, 0xFF);
-
-    //  set all pins to FALLING interrupts
-    writeRegister(_TCA8418_REG_GPIO_INT_LVL_1, 0x00);
-    writeRegister(_TCA8418_REG_GPIO_INT_LVL_2, 0x00);
-    writeRegister(_TCA8418_REG_GPIO_INT_LVL_3, 0x00);
-
-    //  add all pins to interrupts
-    writeRegister(_TCA8418_REG_GPIO_INT_EN_1, 0xFF);
-    writeRegister(_TCA8418_REG_GPIO_INT_EN_2, 0xFF);
-    writeRegister(_TCA8418_REG_GPIO_INT_EN_3, 0xFF);
-
-    // Set keyboard matrix size
-    matrix(_TCA8418_ROWS, _TCA8418_COLS);
-    enableDebounce();
-    flush();
-    state = Idle;
-}
-
-bool TCA8418Keyboard::matrix(uint8_t rows, uint8_t columns)
-{
-    if ((rows > 8) || (columns > 10))
-        return false;
-
-    //  Skip zero size matrix
-    if ((rows != 0) && (columns != 0)) {
-        // Setup the keypad matrix.
-        uint8_t mask = 0x00;
-        for (int r = 0; r < rows; r++) {
-            mask <<= 1;
-            mask |= 1;
-        }
-        writeRegister(_TCA8418_REG_KP_GPIO_1, mask);
-
-        mask = 0x00;
-        for (int c = 0; c < columns && c < 8; c++) {
-            mask <<= 1;
-            mask |= 1;
-        }
-        writeRegister(_TCA8418_REG_KP_GPIO_2, mask);
-
-        if (columns > 8) {
-            if (columns == 9)
-                mask = 0x01;
-            else
-                mask = 0x03;
-            writeRegister(_TCA8418_REG_KP_GPIO_3, mask);
-        }
-    }
-
-    return true;
-}
-
-uint8_t TCA8418Keyboard::keyCount() const
-{
-    uint8_t eventCount = readRegister(_TCA8418_REG_KEY_LCK_EC);
-    eventCount &= 0x0F; //  lower 4 bits only
-    return eventCount;
-}
-
-bool TCA8418Keyboard::hasEvent()
-{
-    return queue.length() > 0;
-}
-
-void TCA8418Keyboard::queueEvent(char next)
-{
-    if (next == _TCA8418_NONE) {
-        return;
-    }
-    queue.concat(next);
-}
-
-char TCA8418Keyboard::dequeueEvent()
-{
-    if (queue.length() < 1) {
-        return _TCA8418_NONE;
-    }
-    char next = queue.charAt(0);
-    queue.remove(0, 1);
-    return next;
-}
-
-void TCA8418Keyboard::trigger()
-{
-    if (keyCount() == 0) {
-        return;
-    }
-    if (state != Init) {
-        // Read the key register
-        uint8_t k = readRegister(_TCA8418_REG_KEY_EVENT_A);
-        uint8_t key = k & 0x7F;
-        if (k & 0x80) {
-            if (state == Idle)
-                pressed(key);
-            return;
-        } else {
-            if (state == Held) {
-                released();
-            }
-            state = Idle;
-            return;
-        }
-    } else {
-        reset();
-    }
+    writeRegister(TCA8418_REG_GPIO_DAT_OUT_3, 0x00);
 }
 
 void TCA8418Keyboard::pressed(uint8_t key)
@@ -355,7 +115,7 @@ void TCA8418Keyboard::released()
     int32_t held_interval = now - last_tap;
     last_tap = now;
     if (tap_interval < _TCA8418_MULTI_TAP_THRESHOLD && should_backspace) {
-        queueEvent(_TCA8418_BSP);
+        queueEvent(BSP);
     }
     if (held_interval > _TCA8418_LONG_PRESS_THRESHOLD) {
         queueEvent(TCA8418LongPressMap[last_key]);
@@ -367,195 +127,11 @@ void TCA8418Keyboard::released()
     }
 }
 
-uint8_t TCA8418Keyboard::flush()
-{
-    // Flush key events
-    uint8_t count = 0;
-    while (readRegister(_TCA8418_REG_KEY_EVENT_A) != 0)
-        count++;
-    // Flush gpio events
-    readRegister(_TCA8418_REG_GPIO_INT_STAT_1);
-    readRegister(_TCA8418_REG_GPIO_INT_STAT_2);
-    readRegister(_TCA8418_REG_GPIO_INT_STAT_3);
-    // Clear INT_STAT register
-    writeRegister(_TCA8418_REG_INT_STAT, 3);
-    return count;
-}
-
-uint8_t TCA8418Keyboard::digitalRead(uint8_t pinnum) const
-{
-    if (pinnum > _TCA8418_COL9)
-        return 0xFF;
-
-    uint8_t reg = _TCA8418_REG_GPIO_DAT_STAT_1 + pinnum / 8;
-    uint8_t mask = (1 << (pinnum % 8));
-
-    // Level  0 = low  other = high
-    uint8_t value = readRegister(reg);
-    if (value & mask)
-        return HIGH;
-    return LOW;
-}
-
-bool TCA8418Keyboard::digitalWrite(uint8_t pinnum, uint8_t level)
-{
-    if (pinnum > _TCA8418_COL9)
-        return false;
-
-    uint8_t reg = _TCA8418_REG_GPIO_DAT_OUT_1 + pinnum / 8;
-    uint8_t mask = (1 << (pinnum % 8));
-
-    // Level  0 = low  other = high
-    uint8_t value = readRegister(reg);
-    if (level == LOW)
-        value &= ~mask;
-    else
-        value |= mask;
-    writeRegister(reg, value);
-    return true;
-}
-
-bool TCA8418Keyboard::pinMode(uint8_t pinnum, uint8_t mode)
-{
-    if (pinnum > _TCA8418_COL9)
-        return false;
-
-    uint8_t idx = pinnum / 8;
-    uint8_t reg = _TCA8418_REG_GPIO_DIR_1 + idx;
-    uint8_t mask = (1 << (pinnum % 8));
-
-    // Mode  0 = input   1 = output
-    uint8_t value = readRegister(reg);
-    if (mode == OUTPUT)
-        value |= mask;
-    else
-        value &= ~mask;
-    writeRegister(reg, value);
-
-    // Pullup  0 = enabled   1 = disabled
-    reg = _TCA8418_REG_GPIO_PULL_1 + idx;
-    value = readRegister(reg);
-    if (mode == INPUT_PULLUP)
-        value &= ~mask;
-    else
-        value |= mask;
-    writeRegister(reg, value);
-
-    return true;
-}
-
-bool TCA8418Keyboard::pinIRQMode(uint8_t pinnum, uint8_t mode)
-{
-    if (pinnum > _TCA8418_COL9)
-        return false;
-    if ((mode != RISING) && (mode != FALLING))
-        return false;
-
-    //  Mode  0 = falling   1 = rising
-    uint8_t idx = pinnum / 8;
-    uint8_t reg = _TCA8418_REG_GPIO_INT_LVL_1 + idx;
-    uint8_t mask = (1 << (pinnum % 8));
-
-    uint8_t value = readRegister(reg);
-    if (mode == RISING)
-        value |= mask;
-    else
-        value &= ~mask;
-    writeRegister(reg, value);
-
-    // Enable interrupt
-    reg = _TCA8418_REG_GPIO_INT_EN_1 + idx;
-    value = readRegister(reg);
-    value |= mask;
-    writeRegister(reg, value);
-
-    return true;
-}
-
-void TCA8418Keyboard::enableInterrupts()
-{
-    uint8_t value = readRegister(_TCA8418_REG_CFG);
-    value |= (_TCA8418_REG_CFG_GPI_IEN | _TCA8418_REG_CFG_KE_IEN);
-    writeRegister(_TCA8418_REG_CFG, value);
-};
-
-void TCA8418Keyboard::disableInterrupts()
-{
-    uint8_t value = readRegister(_TCA8418_REG_CFG);
-    value &= ~(_TCA8418_REG_CFG_GPI_IEN | _TCA8418_REG_CFG_KE_IEN);
-    writeRegister(_TCA8418_REG_CFG, value);
-};
-
-void TCA8418Keyboard::enableMatrixOverflow()
-{
-    uint8_t value = readRegister(_TCA8418_REG_CFG);
-    value |= _TCA8418_REG_CFG_OVR_FLOW_M;
-    writeRegister(_TCA8418_REG_CFG, value);
-};
-
-void TCA8418Keyboard::disableMatrixOverflow()
-{
-    uint8_t value = readRegister(_TCA8418_REG_CFG);
-    value &= ~_TCA8418_REG_CFG_OVR_FLOW_M;
-    writeRegister(_TCA8418_REG_CFG, value);
-};
-
-void TCA8418Keyboard::enableDebounce()
-{
-    writeRegister(_TCA8418_REG_DEBOUNCE_DIS_1, 0x00);
-    writeRegister(_TCA8418_REG_DEBOUNCE_DIS_2, 0x00);
-    writeRegister(_TCA8418_REG_DEBOUNCE_DIS_3, 0x00);
-}
-
-void TCA8418Keyboard::disableDebounce()
-{
-    writeRegister(_TCA8418_REG_DEBOUNCE_DIS_1, 0xFF);
-    writeRegister(_TCA8418_REG_DEBOUNCE_DIS_2, 0xFF);
-    writeRegister(_TCA8418_REG_DEBOUNCE_DIS_3, 0xFF);
-}
-
 void TCA8418Keyboard::setBacklight(bool on)
 {
     if (on) {
-        digitalWrite(_TCA8418_COL9, HIGH);
+        digitalWrite(TCA8418_COL9, HIGH);
     } else {
-        digitalWrite(_TCA8418_COL9, LOW);
+        digitalWrite(TCA8418_COL9, LOW);
     }
 }
-
-uint8_t TCA8418Keyboard::readRegister(uint8_t reg) const
-{
-    if (m_wire) {
-        m_wire->beginTransmission(m_addr);
-        m_wire->write(reg);
-        m_wire->endTransmission();
-
-        m_wire->requestFrom(m_addr, (uint8_t)1);
-        if (m_wire->available() < 1)
-            return 0;
-
-        return m_wire->read();
-    }
-    if (readCallback) {
-        uint8_t data;
-        readCallback(m_addr, reg, &data, 1);
-        return data;
-    }
-    return 0;
-}
-
-void TCA8418Keyboard::writeRegister(uint8_t reg, uint8_t value)
-{
-    uint8_t data[2];
-    data[0] = reg;
-    data[1] = value;
-
-    if (m_wire) {
-        m_wire->beginTransmission(m_addr);
-        m_wire->write(data, sizeof(uint8_t) * 2);
-        m_wire->endTransmission();
-    }
-    if (writeCallback) {
-        writeCallback(m_addr, data[0], &(data[1]), 1);
-    }
-}

src/input/TCA8418Keyboard.h

@@ -1,83 +1,23 @@
-// Based on the MPR121 Keyboard and Adafruit TCA8418 library
-#include "configuration.h"
-#include <Wire.h>
+#include "TCA8418KeyboardBase.h"
 
-#define _TCA8418_NONE 0x00
-#define _TCA8418_REBOOT 0x90
-#define _TCA8418_LEFT 0xb4
-#define _TCA8418_UP 0xb5
-#define _TCA8418_DOWN 0xb6
-#define _TCA8418_RIGHT 0xb7
-#define _TCA8418_ESC 0x1b
-#define _TCA8418_BSP 0x08
-#define _TCA8418_SELECT 0x0d
-
-class TCA8418Keyboard
+/**
+ * @brief 3x4 keypad with 3 columns and 4 rows
+ */
+class TCA8418Keyboard : public TCA8418KeyboardBase
 {
   public:
-    typedef uint8_t (*i2c_com_fptr_t)(uint8_t dev_addr, uint8_t reg_addr, uint8_t *data, uint8_t len);
+    TCA8418Keyboard();
+    void reset(void) override;
+    void setBacklight(bool on) override;
 
-    enum KeyState { Init = 0, Idle, Held, Busy };
+  protected:
+    void pressed(uint8_t key) override;
+    void released(void) override;
 
-    KeyState state;
     int8_t last_key;
     int8_t next_key;
-    bool should_backspace;
     uint32_t last_tap;
     uint8_t char_idx;
     int32_t tap_interval;
-    bool backlight_on;
-
-    String queue;
-
-    TCA8418Keyboard();
-
-    void begin(uint8_t addr = XPOWERS_AXP192_AXP2101_ADDRESS, TwoWire *wire = &Wire);
-    void begin(i2c_com_fptr_t r, i2c_com_fptr_t w, uint8_t addr = XPOWERS_AXP192_AXP2101_ADDRESS);
-
-    void reset(void);
-    // Configure the size of the keypad.
-    // All other rows and columns are set as inputs.
-    bool matrix(uint8_t rows, uint8_t columns);
-
-    // Flush all events in the FIFO buffer + GPIO events.
-    uint8_t flush(void);
-
-    // Key events available in the internal FIFO buffer.
-    uint8_t keyCount(void) const;
-
-    void trigger(void);
-    void pressed(uint8_t key);
-    void released(void);
-    bool hasEvent(void);
-    char dequeueEvent(void);
-    void queueEvent(char);
-
-    uint8_t digitalRead(uint8_t pinnum) const;
-    bool digitalWrite(uint8_t pinnum, uint8_t level);
-    bool pinMode(uint8_t pinnum, uint8_t mode);
-    bool pinIRQMode(uint8_t pinnum, uint8_t mode); // MODE  FALLING or RISING
-
-    // enable / disable interrupts for matrix and GPI pins
-    void enableInterrupts();
-    void disableInterrupts();
-
-    // ignore key events when FIFO buffer is full or not.
-    void enableMatrixOverflow();
-    void disableMatrixOverflow();
-
-    // debounce keys.
-    void enableDebounce();
-    void disableDebounce();
-
-    void setBacklight(bool on);
-
-    uint8_t readRegister(uint8_t reg) const;
-    void writeRegister(uint8_t reg, uint8_t value);
-
-  private:
-    TwoWire *m_wire;
-    uint8_t m_addr;
-    i2c_com_fptr_t readCallback;
-    i2c_com_fptr_t writeCallback;
+    bool should_backspace;
 };

src/input/TCA8418KeyboardBase.cpp

@@ -0,0 +1,372 @@
+// Based on the MPR121 Keyboard and Adafruit TCA8418 library
+
+#include "TCA8418KeyboardBase.h"
+#include "configuration.h"
+
+#include <Arduino.h>
+
+// FIELDS CONFIG REGISTER  1
+#define _TCA8418_REG_CFG_AI 0x80           // Auto-increment for read/write
+#define _TCA8418_REG_CFG_GPI_E_CGF 0x40    // Event mode config
+#define _TCA8418_REG_CFG_OVR_FLOW_M 0x20   // Overflow mode enable
+#define _TCA8418_REG_CFG_INT_CFG 0x10      // Interrupt config
+#define _TCA8418_REG_CFG_OVR_FLOW_IEN 0x08 // Overflow interrupt enable
+#define _TCA8418_REG_CFG_K_LCK_IEN 0x04    // Keypad lock interrupt enable
+#define _TCA8418_REG_CFG_GPI_IEN 0x02      // GPI interrupt enable
+#define _TCA8418_REG_CFG_KE_IEN 0x01       // Key events interrupt enable
+
+// FIELDS INT_STAT REGISTER  2
+#define _TCA8418_REG_STAT_CAD_INT 0x10      // Ctrl-alt-del seq status
+#define _TCA8418_REG_STAT_OVR_FLOW_INT 0x08 // Overflow interrupt status
+#define _TCA8418_REG_STAT_K_LCK_INT 0x04    // Key lock interrupt status
+#define _TCA8418_REG_STAT_GPI_INT 0x02      // GPI interrupt status
+#define _TCA8418_REG_STAT_K_INT 0x01        // Key events interrupt status
+
+// FIELDS  KEY_LCK_EC REGISTER 3
+#define _TCA8418_REG_LCK_EC_K_LCK_EN 0x40 // Key lock enable
+#define _TCA8418_REG_LCK_EC_LCK_2 0x20    // Keypad lock status 2
+#define _TCA8418_REG_LCK_EC_LCK_1 0x10    // Keypad lock status 1
+#define _TCA8418_REG_LCK_EC_KLEC_3 0x08   // Key event count bit 3
+#define _TCA8418_REG_LCK_EC_KLEC_2 0x04   // Key event count bit 2
+#define _TCA8418_REG_LCK_EC_KLEC_1 0x02   // Key event count bit 1
+#define _TCA8418_REG_LCK_EC_KLEC_0 0x01   // Key event count bit 0
+
+TCA8418KeyboardBase::TCA8418KeyboardBase(uint8_t rows, uint8_t columns)
+    : rows(rows), columns(columns), state(Init), queue(""), m_wire(nullptr), m_addr(0), readCallback(nullptr),
+      writeCallback(nullptr)
+{
+}
+
+void TCA8418KeyboardBase::begin(uint8_t addr, TwoWire *wire)
+{
+    m_addr = addr;
+    m_wire = wire;
+    m_wire->begin();
+    reset();
+}
+
+void TCA8418KeyboardBase::begin(i2c_com_fptr_t r, i2c_com_fptr_t w, uint8_t addr)
+{
+    m_addr = addr;
+    m_wire = nullptr;
+    writeCallback = w;
+    readCallback = r;
+    reset();
+}
+
+void TCA8418KeyboardBase::reset()
+{
+    LOG_DEBUG("TCA8418 Reset");
+    //  GPIO
+    //  set default all GIO pins to INPUT
+    writeRegister(TCA8418_REG_GPIO_DIR_1, 0x00);
+    writeRegister(TCA8418_REG_GPIO_DIR_2, 0x00);
+    writeRegister(TCA8418_REG_GPIO_DIR_3, 0x00);
+
+    //  add all pins to key events
+    writeRegister(TCA8418_REG_GPI_EM_1, 0xFF);
+    writeRegister(TCA8418_REG_GPI_EM_2, 0xFF);
+    writeRegister(TCA8418_REG_GPI_EM_3, 0xFF);
+
+    //  set all pins to FALLING interrupts
+    writeRegister(TCA8418_REG_GPIO_INT_LVL_1, 0x00);
+    writeRegister(TCA8418_REG_GPIO_INT_LVL_2, 0x00);
+    writeRegister(TCA8418_REG_GPIO_INT_LVL_3, 0x00);
+
+    //  add all pins to interrupts
+    writeRegister(TCA8418_REG_GPIO_INT_EN_1, 0xFF);
+    writeRegister(TCA8418_REG_GPIO_INT_EN_2, 0xFF);
+    writeRegister(TCA8418_REG_GPIO_INT_EN_3, 0xFF);
+
+    // Set keyboard matrix size
+    matrix(rows, columns);
+    enableDebounce();
+    flush();
+    state = Idle;
+}
+
+bool TCA8418KeyboardBase::matrix(uint8_t rows, uint8_t columns)
+{
+    if (rows < 1 || rows > 8 || columns < 1 || columns > 10)
+        return false;
+
+    // Setup the keypad matrix.
+    uint8_t mask = 0x00;
+    for (int r = 0; r < rows; r++) {
+        mask <<= 1;
+        mask |= 1;
+    }
+    writeRegister(TCA8418_REG_KP_GPIO_1, mask);
+
+    mask = 0x00;
+    for (int c = 0; c < columns && c < 8; c++) {
+        mask <<= 1;
+        mask |= 1;
+    }
+    writeRegister(TCA8418_REG_KP_GPIO_2, mask);
+
+    if (columns > 8) {
+        if (columns == 9)
+            mask = 0x01;
+        else
+            mask = 0x03;
+        writeRegister(TCA8418_REG_KP_GPIO_3, mask);
+    }
+
+    return true;
+}
+
+uint8_t TCA8418KeyboardBase::keyCount() const
+{
+    uint8_t eventCount = readRegister(TCA8418_REG_KEY_LCK_EC);
+    eventCount &= 0x0F; //  lower 4 bits only
+    return eventCount;
+}
+
+bool TCA8418KeyboardBase::hasEvent() const
+{
+    return queue.length() > 0;
+}
+
+void TCA8418KeyboardBase::queueEvent(char next)
+{
+    if (next == NONE) {
+        return;
+    }
+    queue.concat(next);
+}
+
+char TCA8418KeyboardBase::dequeueEvent()
+{
+    if (queue.length() < 1) {
+        return NONE;
+    }
+    char next = queue.charAt(0);
+    queue.remove(0, 1);
+    return next;
+}
+
+void TCA8418KeyboardBase::trigger()
+{
+    if (keyCount() == 0) {
+        return;
+    }
+    if (state != Init) {
+        // Read the key register
+        uint8_t k = readRegister(TCA8418_REG_KEY_EVENT_A);
+        uint8_t key = k & 0x7F;
+        if (k & 0x80) {
+            if (state == Idle)
+                pressed(key);
+            return;
+        } else {
+            if (state == Held) {
+                released();
+            }
+            state = Idle;
+            return;
+        }
+    } else {
+        reset();
+    }
+}
+
+void TCA8418KeyboardBase::pressed(uint8_t key)
+{
+    // must be defined in derived class
+    LOG_ERROR("pressed() not implemented in derived class");
+}
+
+void TCA8418KeyboardBase::released()
+{
+    // must be defined in derived class
+    LOG_ERROR("released() not implemented in derived class");
+}
+
+uint8_t TCA8418KeyboardBase::flush()
+{
+    // Flush key events
+    uint8_t count = 0;
+    while (readRegister(TCA8418_REG_KEY_EVENT_A) != 0)
+        count++;
+
+    // Flush gpio events
+    readRegister(TCA8418_REG_GPIO_INT_STAT_1);
+    readRegister(TCA8418_REG_GPIO_INT_STAT_2);
+    readRegister(TCA8418_REG_GPIO_INT_STAT_3);
+
+    // Clear INT_STAT register
+    writeRegister(TCA8418_REG_INT_STAT, 3);
+    return count;
+}
+
+uint8_t TCA8418KeyboardBase::digitalRead(uint8_t pinnum) const
+{
+    if (pinnum > TCA8418_COL9)
+        return 0xFF;
+
+    uint8_t reg = TCA8418_REG_GPIO_DAT_STAT_1 + pinnum / 8;
+    uint8_t mask = (1 << (pinnum % 8));
+
+    // Level  0 = low  other = high
+    uint8_t value = readRegister(reg);
+    if (value & mask)
+        return HIGH;
+    return LOW;
+}
+
+bool TCA8418KeyboardBase::digitalWrite(uint8_t pinnum, uint8_t level)
+{
+    if (pinnum > TCA8418_COL9)
+        return false;
+
+    uint8_t reg = TCA8418_REG_GPIO_DAT_OUT_1 + pinnum / 8;
+    uint8_t mask = (1 << (pinnum % 8));
+
+    // Level  0 = low  other = high
+    uint8_t value = readRegister(reg);
+    if (level == LOW)
+        value &= ~mask;
+    else
+        value |= mask;
+    writeRegister(reg, value);
+    return true;
+}
+
+bool TCA8418KeyboardBase::pinMode(uint8_t pinnum, uint8_t mode)
+{
+    if (pinnum > TCA8418_COL9)
+        return false;
+
+    uint8_t idx = pinnum / 8;
+    uint8_t reg = TCA8418_REG_GPIO_DIR_1 + idx;
+    uint8_t mask = (1 << (pinnum % 8));
+
+    // Mode  0 = input   1 = output
+    uint8_t value = readRegister(reg);
+    if (mode == OUTPUT)
+        value |= mask;
+    else
+        value &= ~mask;
+    writeRegister(reg, value);
+
+    // Pullup  0 = enabled   1 = disabled
+    reg = TCA8418_REG_GPIO_PULL_1 + idx;
+    value = readRegister(reg);
+    if (mode == INPUT_PULLUP)
+        value &= ~mask;
+    else
+        value |= mask;
+    writeRegister(reg, value);
+
+    return true;
+}
+
+bool TCA8418KeyboardBase::pinIRQMode(uint8_t pinnum, uint8_t mode)
+{
+    if (pinnum > TCA8418_COL9)
+        return false;
+    if ((mode != RISING) && (mode != FALLING))
+        return false;
+
+    //  Mode  0 = falling   1 = rising
+    uint8_t idx = pinnum / 8;
+    uint8_t reg = TCA8418_REG_GPIO_INT_LVL_1 + idx;
+    uint8_t mask = (1 << (pinnum % 8));
+
+    uint8_t value = readRegister(reg);
+    if (mode == RISING)
+        value |= mask;
+    else
+        value &= ~mask;
+    writeRegister(reg, value);
+
+    // Enable interrupt
+    reg = TCA8418_REG_GPIO_INT_EN_1 + idx;
+    value = readRegister(reg);
+    value |= mask;
+    writeRegister(reg, value);
+
+    return true;
+}
+
+void TCA8418KeyboardBase::enableInterrupts()
+{
+    uint8_t value = readRegister(TCA8418_REG_CFG);
+    value |= (_TCA8418_REG_CFG_GPI_IEN | _TCA8418_REG_CFG_KE_IEN);
+    writeRegister(TCA8418_REG_CFG, value);
+};
+
+void TCA8418KeyboardBase::disableInterrupts()
+{
+    uint8_t value = readRegister(TCA8418_REG_CFG);
+    value &= ~(_TCA8418_REG_CFG_GPI_IEN | _TCA8418_REG_CFG_KE_IEN);
+    writeRegister(TCA8418_REG_CFG, value);
+};
+
+void TCA8418KeyboardBase::enableMatrixOverflow()
+{
+    uint8_t value = readRegister(TCA8418_REG_CFG);
+    value |= _TCA8418_REG_CFG_OVR_FLOW_M;
+    writeRegister(TCA8418_REG_CFG, value);
+};
+
+void TCA8418KeyboardBase::disableMatrixOverflow()
+{
+    uint8_t value = readRegister(TCA8418_REG_CFG);
+    value &= ~_TCA8418_REG_CFG_OVR_FLOW_M;
+    writeRegister(TCA8418_REG_CFG, value);
+};
+
+void TCA8418KeyboardBase::enableDebounce()
+{
+    writeRegister(TCA8418_REG_DEBOUNCE_DIS_1, 0x00);
+    writeRegister(TCA8418_REG_DEBOUNCE_DIS_2, 0x00);
+    writeRegister(TCA8418_REG_DEBOUNCE_DIS_3, 0x00);
+}
+
+void TCA8418KeyboardBase::disableDebounce()
+{
+    writeRegister(TCA8418_REG_DEBOUNCE_DIS_1, 0xFF);
+    writeRegister(TCA8418_REG_DEBOUNCE_DIS_2, 0xFF);
+    writeRegister(TCA8418_REG_DEBOUNCE_DIS_3, 0xFF);
+}
+
+void TCA8418KeyboardBase::setBacklight(bool on) {}
+
+uint8_t TCA8418KeyboardBase::readRegister(uint8_t reg) const
+{
+    if (m_wire) {
+        m_wire->beginTransmission(m_addr);
+        m_wire->write(reg);
+        m_wire->endTransmission();
+
+        m_wire->requestFrom(m_addr, (uint8_t)1);
+        if (m_wire->available() < 1)
+            return 0;
+
+        return m_wire->read();
+    }
+    if (readCallback) {
+        uint8_t data;
+        readCallback(m_addr, reg, &data, 1);
+        return data;
+    }
+    return 0;
+}
+
+void TCA8418KeyboardBase::writeRegister(uint8_t reg, uint8_t value)
+{
+    uint8_t data[2];
+    data[0] = reg;
+    data[1] = value;
+
+    if (m_wire) {
+        m_wire->beginTransmission(m_addr);
+        m_wire->write(data, sizeof(uint8_t) * 2);
+        m_wire->endTransmission();
+    }
+    if (writeCallback) {
+        writeCallback(m_addr, data[0], &(data[1]), 1);
+    }
+}

src/input/TCA8418KeyboardBase.h

@@ -0,0 +1,170 @@
+// Based on the MPR121 Keyboard and Adafruit TCA8418 library
+#include "configuration.h"
+#include <Wire.h>
+
+/**
+ * @brief TCA8418KeyboardBase is the base class for TCA8418 keyboard handling.
+ * It provides basic functionality for reading key events, managing the keyboard matrix,
+ * and handling key states. It is designed to be extended for specific keyboard implementations.
+ * It supports both I2C communication and function pointers for custom I2C operations.
+ */
+class TCA8418KeyboardBase
+{
+  public:
+    enum TCA8418Key : uint8_t {
+        NONE = 0x00,
+        BSP = 0x08,
+        TAB = 0x09,
+        SELECT = 0x0d,
+        ESC = 0x1b,
+        REBOOT = 0x90,
+        LEFT = 0xb4,
+        UP = 0xb5,
+        DOWN = 0xb6,
+        RIGHT = 0xb7,
+        BT_TOGGLE = 0xAA,
+        GPS_TOGGLE = 0x9E,
+        MUTE_TOGGLE = 0xAC,
+        SEND_PING = 0xAF,
+        BL_TOGGLE = 0xAB
+    };
+
+    typedef uint8_t (*i2c_com_fptr_t)(uint8_t dev_addr, uint8_t reg_addr, uint8_t *data, uint8_t len);
+
+    TCA8418KeyboardBase(uint8_t rows, uint8_t columns);
+
+    virtual void begin(uint8_t addr = TCA8418_KB_ADDR, TwoWire *wire = &Wire);
+    virtual void begin(i2c_com_fptr_t r, i2c_com_fptr_t w, uint8_t addr = TCA8418_KB_ADDR);
+
+    virtual void reset(void);
+    virtual void trigger(void);
+
+    virtual void setBacklight(bool on);
+
+    // Key events available
+    virtual bool hasEvent(void) const;
+    virtual char dequeueEvent(void);
+
+  protected:
+    enum KeyState { Init, Idle, Held, Busy };
+
+    enum TCA8418Register : uint8_t {
+        TCA8418_REG_RESERVED = 0x00,
+        TCA8418_REG_CFG = 0x01,
+        TCA8418_REG_INT_STAT = 0x02,
+        TCA8418_REG_KEY_LCK_EC = 0x03,
+        TCA8418_REG_KEY_EVENT_A = 0x04,
+        TCA8418_REG_KEY_EVENT_B = 0x05,
+        TCA8418_REG_KEY_EVENT_C = 0x06,
+        TCA8418_REG_KEY_EVENT_D = 0x07,
+        TCA8418_REG_KEY_EVENT_E = 0x08,
+        TCA8418_REG_KEY_EVENT_F = 0x09,
+        TCA8418_REG_KEY_EVENT_G = 0x0A,
+        TCA8418_REG_KEY_EVENT_H = 0x0B,
+        TCA8418_REG_KEY_EVENT_I = 0x0C,
+        TCA8418_REG_KEY_EVENT_J = 0x0D,
+        TCA8418_REG_KP_LCK_TIMER = 0x0E,
+        TCA8418_REG_UNLOCK_1 = 0x0F,
+        TCA8418_REG_UNLOCK_2 = 0x10,
+        TCA8418_REG_GPIO_INT_STAT_1 = 0x11,
+        TCA8418_REG_GPIO_INT_STAT_2 = 0x12,
+        TCA8418_REG_GPIO_INT_STAT_3 = 0x13,
+        TCA8418_REG_GPIO_DAT_STAT_1 = 0x14,
+        TCA8418_REG_GPIO_DAT_STAT_2 = 0x15,
+        TCA8418_REG_GPIO_DAT_STAT_3 = 0x16,
+        TCA8418_REG_GPIO_DAT_OUT_1 = 0x17,
+        TCA8418_REG_GPIO_DAT_OUT_2 = 0x18,
+        TCA8418_REG_GPIO_DAT_OUT_3 = 0x19,
+        TCA8418_REG_GPIO_INT_EN_1 = 0x1A,
+        TCA8418_REG_GPIO_INT_EN_2 = 0x1B,
+        TCA8418_REG_GPIO_INT_EN_3 = 0x1C,
+        TCA8418_REG_KP_GPIO_1 = 0x1D,
+        TCA8418_REG_KP_GPIO_2 = 0x1E,
+        TCA8418_REG_KP_GPIO_3 = 0x1F,
+        TCA8418_REG_GPI_EM_1 = 0x20,
+        TCA8418_REG_GPI_EM_2 = 0x21,
+        TCA8418_REG_GPI_EM_3 = 0x22,
+        TCA8418_REG_GPIO_DIR_1 = 0x23,
+        TCA8418_REG_GPIO_DIR_2 = 0x24,
+        TCA8418_REG_GPIO_DIR_3 = 0x25,
+        TCA8418_REG_GPIO_INT_LVL_1 = 0x26,
+        TCA8418_REG_GPIO_INT_LVL_2 = 0x27,
+        TCA8418_REG_GPIO_INT_LVL_3 = 0x28,
+        TCA8418_REG_DEBOUNCE_DIS_1 = 0x29,
+        TCA8418_REG_DEBOUNCE_DIS_2 = 0x2A,
+        TCA8418_REG_DEBOUNCE_DIS_3 = 0x2B,
+        TCA8418_REG_GPIO_PULL_1 = 0x2C,
+        TCA8418_REG_GPIO_PULL_2 = 0x2D,
+        TCA8418_REG_GPIO_PULL_3 = 0x2E
+    };
+
+    // Pin IDs for matrix rows/columns
+    enum TCA8418PinId : uint8_t {
+        TCA8418_ROW0, // Pin ID for row 0
+        TCA8418_ROW1, // Pin ID for row 1
+        TCA8418_ROW2, // Pin ID for row 2
+        TCA8418_ROW3, // Pin ID for row 3
+        TCA8418_ROW4, // Pin ID for row 4
+        TCA8418_ROW5, // Pin ID for row 5
+        TCA8418_ROW6, // Pin ID for row 6
+        TCA8418_ROW7, // Pin ID for row 7
+        TCA8418_COL0, // Pin ID for column 0
+        TCA8418_COL1, // Pin ID for column 1
+        TCA8418_COL2, // Pin ID for column 2
+        TCA8418_COL3, // Pin ID for column 3
+        TCA8418_COL4, // Pin ID for column 4
+        TCA8418_COL5, // Pin ID for column 5
+        TCA8418_COL6, // Pin ID for column 6
+        TCA8418_COL7, // Pin ID for column 7
+        TCA8418_COL8, // Pin ID for column 8
+        TCA8418_COL9  // Pin ID for column 9
+    };
+
+    virtual void pressed(uint8_t key);
+    virtual void released(void);
+
+    virtual void queueEvent(char);
+
+    virtual ~TCA8418KeyboardBase() {}
+
+  protected:
+    // Set the size of the keypad matrix
+    // All other rows and columns are set as inputs.
+    bool matrix(uint8_t rows, uint8_t columns);
+
+    uint8_t keyCount(void) const;
+
+    // Flush all events in the FIFO buffer + GPIO events.
+    uint8_t flush(void);
+
+    // debounce keys.
+    void enableDebounce();
+    void disableDebounce();
+
+    // enable / disable interrupts for matrix and GPI pins
+    void enableInterrupts();
+    void disableInterrupts();
+
+    // ignore key events when FIFO buffer is full or not.
+    void enableMatrixOverflow();
+    void disableMatrixOverflow();
+
+    uint8_t digitalRead(uint8_t pinnum) const;
+    bool digitalWrite(uint8_t pinnum, uint8_t level);
+    bool pinMode(uint8_t pinnum, uint8_t mode);
+    bool pinIRQMode(uint8_t pinnum, uint8_t mode); // MODE  FALLING or RISING
+    uint8_t readRegister(uint8_t reg) const;
+    void writeRegister(uint8_t reg, uint8_t value);
+
+  protected:
+    uint8_t rows;
+    uint8_t columns;
+    KeyState state;
+    String queue;
+
+  private:
+    TwoWire *m_wire;
+    uint8_t m_addr;
+    i2c_com_fptr_t readCallback;
+    i2c_com_fptr_t writeCallback;
+};

src/input/TDeckProKeyboard.cpp

@@ -0,0 +1,196 @@
+#if defined(T_DECK_PRO)
+
+#include "TDeckProKeyboard.h"
+
+#define _TCA8418_COLS 10
+#define _TCA8418_ROWS 4
+#define _TCA8418_NUM_KEYS 35
+
+#define _TCA8418_MULTI_TAP_THRESHOLD 1500
+
+using Key = TCA8418KeyboardBase::TCA8418Key;
+
+constexpr uint8_t modifierRightShiftKey = 31 - 1; // keynum -1
+constexpr uint8_t modifierRightShift = 0b0001;
+constexpr uint8_t modifierLeftShiftKey = 35 - 1;
+constexpr uint8_t modifierLeftShift = 0b0001;
+constexpr uint8_t modifierSymKey = 32 - 1;
+constexpr uint8_t modifierSym = 0b0010;
+constexpr uint8_t modifierAltKey = 30 - 1;
+constexpr uint8_t modifierAlt = 0b0100;
+
+// Num chars per key, Modulus for rotating through characters
+static uint8_t TDeckProTapMod[_TCA8418_NUM_KEYS] = {5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
+                                                    5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5};
+
+static unsigned char TDeckProTapMap[_TCA8418_NUM_KEYS][5] = {
+    {'p', 'P', '@', 0x00, Key::SEND_PING},
+    {'o', 'O', '+'},
+    {'i', 'I', '-'},
+    {'u', 'U', '_'},
+    {'y', 'Y', ')'},
+    {'t', 'T', '(', 0x00, Key::TAB},
+    {'r', 'R', '3'},
+    {'e', 'E', '2', 0x00, Key::UP},
+    {'w', 'W', '1'},
+    {'q', 'Q', '#', 0x00, Key::ESC}, // p, o, i, u, y, t, r, e, w, q
+    {Key::BSP, 0x00, 0x00},
+    {'l', 'L', '"'},
+    {'k', 'K', '\''},
+    {'j', 'J', ';'},
+    {'h', 'H', ':'},
+    {'g', 'G', '/', 0x00, Key::GPS_TOGGLE},
+    {'f', 'F', '6', 0x00, Key::RIGHT},
+    {'d', 'D', '5'},
+    {'s', 'S', '4', 0x00, Key::LEFT},
+    {'a', 'A', '*'}, // bsp, l, k, j, h, g, f, d, s, a
+    {0x0d, 0x00, 0x00},
+    {'$', 0x00, 0x00},
+    {'m', 'M', '.', 0x00, Key::MUTE_TOGGLE},
+    {'n', 'N', ','},
+    {'b', 'B', '!', 0x00, Key::BL_TOGGLE},
+    {'v', 'V', '?'},
+    {'c', 'C', '9'},
+    {'x', 'X', '8', 0x00, Key::DOWN},
+    {'z', 'Z', '7'},
+    {0x00, 0x00, 0x00}, // Ent, $, m, n, b, v, c, x, z, alt
+    {0x00, 0x00, 0x00},
+    {0x00, 0x00, 0x00},
+    {0x20, 0x00, 0x00},
+    {0x00, 0x00, 0x00},
+    {0x00, 0x00, 0x00} // R_Shift, sym, space, mic, L_Shift
+};
+
+TDeckProKeyboard::TDeckProKeyboard()
+    : TCA8418KeyboardBase(_TCA8418_ROWS, _TCA8418_COLS), modifierFlag(0), last_modifier_time(0), last_key(-1), next_key(-1),
+      last_tap(0L), char_idx(0), tap_interval(0)
+{
+}
+
+void TDeckProKeyboard::reset()
+{
+    TCA8418KeyboardBase::reset();
+    pinMode(KB_BL_PIN, OUTPUT);
+    setBacklight(false);
+}
+
+// handle multi-key presses (shift and alt)
+void TDeckProKeyboard::trigger()
+{
+    uint8_t count = keyCount();
+    if (count == 0)
+        return;
+    for (uint8_t i = 0; i < count; ++i) {
+        uint8_t k = readRegister(TCA8418_REG_KEY_EVENT_A + i);
+        uint8_t key = k & 0x7F;
+        if (k & 0x80) {
+            pressed(key);
+        } else {
+            released();
+            state = Idle;
+        }
+    }
+}
+
+void TDeckProKeyboard::pressed(uint8_t key)
+{
+    if (state == Init || state == Busy) {
+        return;
+    }
+    if (modifierFlag && (millis() - last_modifier_time > _TCA8418_MULTI_TAP_THRESHOLD)) {
+        modifierFlag = 0;
+    }
+
+    uint8_t next_key = 0;
+    int row = (key - 1) / 10;
+    int col = (key - 1) % 10;
+
+    if (row >= _TCA8418_ROWS || col >= _TCA8418_COLS) {
+        return; // Invalid key
+    }
+
+    next_key = row * _TCA8418_COLS + col;
+    state = Held;
+
+    uint32_t now = millis();
+    tap_interval = now - last_tap;
+
+    updateModifierFlag(next_key);
+    if (isModifierKey(next_key)) {
+        last_modifier_time = now;
+    }
+
+    if (tap_interval < 0) {
+        last_tap = 0;
+        state = Busy;
+        return;
+    }
+
+    if (next_key != last_key || tap_interval > _TCA8418_MULTI_TAP_THRESHOLD) {
+        char_idx = 0;
+    } else {
+        char_idx += 1;
+    }
+
+    last_key = next_key;
+    last_tap = now;
+}
+
+void TDeckProKeyboard::released()
+{
+    if (state != Held) {
+        return;
+    }
+
+    if (last_key < 0 || last_key >= _TCA8418_NUM_KEYS) {
+        last_key = -1;
+        state = Idle;
+        return;
+    }
+
+    uint32_t now = millis();
+    last_tap = now;
+
+    if (TDeckProTapMap[last_key][modifierFlag % TDeckProTapMod[last_key]] == Key::BL_TOGGLE) {
+        toggleBacklight();
+        return;
+    }
+
+    queueEvent(TDeckProTapMap[last_key][modifierFlag % TDeckProTapMod[last_key]]);
+    if (isModifierKey(last_key) == false)
+        modifierFlag = 0;
+}
+
+void TDeckProKeyboard::setBacklight(bool on)
+{
+    if (on) {
+        digitalWrite(KB_BL_PIN, HIGH);
+    } else {
+        digitalWrite(KB_BL_PIN, LOW);
+    }
+}
+
+void TDeckProKeyboard::toggleBacklight(void)
+{
+    digitalWrite(KB_BL_PIN, !digitalRead(KB_BL_PIN));
+}
+
+void TDeckProKeyboard::updateModifierFlag(uint8_t key)
+{
+    if (key == modifierRightShiftKey) {
+        modifierFlag ^= modifierRightShift;
+    } else if (key == modifierLeftShiftKey) {
+        modifierFlag ^= modifierLeftShift;
+    } else if (key == modifierSymKey) {
+        modifierFlag ^= modifierSym;
+    } else if (key == modifierAltKey) {
+        modifierFlag ^= modifierAlt;
+    }
+}
+
+bool TDeckProKeyboard::isModifierKey(uint8_t key)
+{
+    return (key == modifierRightShiftKey || key == modifierLeftShiftKey || key == modifierAltKey || key == modifierSymKey);
+}
+
+#endif // T_DECK_PRO

src/input/TDeckProKeyboard.h

@@ -0,0 +1,27 @@
+#include "TCA8418KeyboardBase.h"
+
+class TDeckProKeyboard : public TCA8418KeyboardBase
+{
+  public:
+    TDeckProKeyboard();
+    void reset(void) override;
+    void trigger(void) override;
+    void setBacklight(bool on) override;
+
+  protected:
+    void pressed(uint8_t key) override;
+    void released(void) override;
+
+    void updateModifierFlag(uint8_t key);
+    bool isModifierKey(uint8_t key);
+    void toggleBacklight(void);
+
+  private:
+    uint8_t modifierFlag;        // Flag to indicate if a modifier key is pressed
+    uint32_t last_modifier_time; // Timestamp of the last modifier key press
+    int8_t last_key;
+    int8_t next_key;
+    uint32_t last_tap;
+    uint8_t char_idx;
+    int32_t tap_interval;
+};

src/input/TLoraPagerKeyboard.h

@@ -0,0 +1,12 @@
+#include "TCA8418KeyboardBase.h"
+
+class TLoraPagerKeyboard : public TCA8418KeyboardBase
+{
+  public:
+    TLoraPagerKeyboard();
+    void setBacklight(bool on) override{};
+
+  protected:
+    void pressed(uint8_t key) override{};
+    void released(void) override{};
+};

src/input/kbI2cBase.cpp

@@ -3,10 +3,26 @@
 #include "detect/ScanI2C.h"
 #include "detect/ScanI2CTwoWire.h"
 
+#if defined(T_DECK_PRO)
+#include "TDeckProKeyboard.h"
+#elif defined(T_LORA_PAGER)
+#include "TLoraPagerKeyboard.h"
+#else
+#include "TCA8418Keyboard.h"
+#endif
+
 extern ScanI2C::DeviceAddress cardkb_found;
 extern uint8_t kb_model;
 
-KbI2cBase::KbI2cBase(const char *name) : concurrency::OSThread(name)
+KbI2cBase::KbI2cBase(const char *name)
+    : concurrency::OSThread(name),
+#if defined(T_DECK_PRO)
+      TCAKeyboard(*(new TDeckProKeyboard()))
+#elif defined(T_LORA_PAGER)
+      TCAKeyboard(*(new TLoraPagerKeyboard()))
+#else
+      TCAKeyboard(*(new TCA8418Keyboard()))
+#endif
 {
     this->_originName = name;
 }
@@ -43,8 +59,8 @@ int32_t KbI2cBase::runOnce()
             if (cardkb_found.address == MPR121_KB_ADDR) {
                 MPRkeyboard.begin(MPR121_KB_ADDR, &Wire1);
             }
-            if (cardkb_found.address == XPOWERS_AXP192_AXP2101_ADDRESS) {
-                TCAKeyboard.begin(XPOWERS_AXP192_AXP2101_ADDRESS, &Wire1);
+            if (cardkb_found.address == TCA8418_KB_ADDR) {
+                TCAKeyboard.begin(TCA8418_KB_ADDR, &Wire1);
             }
             break;
 #endif
@@ -58,8 +74,8 @@ int32_t KbI2cBase::runOnce()
             if (cardkb_found.address == MPR121_KB_ADDR) {
                 MPRkeyboard.begin(MPR121_KB_ADDR, &Wire);
             }
-            if (cardkb_found.address == XPOWERS_AXP192_AXP2101_ADDRESS) {
-                TCAKeyboard.begin(XPOWERS_AXP192_AXP2101_ADDRESS, &Wire);
+            if (cardkb_found.address == TCA8418_KB_ADDR) {
+                TCAKeyboard.begin(TCA8418_KB_ADDR, &Wire);
             }
             break;
         case ScanI2C::NO_I2C:
@@ -241,42 +257,66 @@ int32_t KbI2cBase::runOnce()
             e.kbchar = 0x00;
             e.source = this->_originName;
             switch (nextEvent) {
-            case _TCA8418_NONE:
+            case TCA8418KeyboardBase::NONE:
                 e.inputEvent = meshtastic_ModuleConfig_CannedMessageConfig_InputEventChar_NONE;
                 e.kbchar = 0x00;
                 break;
-            case _TCA8418_REBOOT:
+            case TCA8418KeyboardBase::REBOOT:
                 e.inputEvent = ANYKEY;
                 e.kbchar = INPUT_BROKER_MSG_REBOOT;
                 break;
-            case _TCA8418_LEFT:
+            case TCA8418KeyboardBase::LEFT:
                 e.inputEvent = meshtastic_ModuleConfig_CannedMessageConfig_InputEventChar_LEFT;
                 e.kbchar = 0x00;
                 break;
-            case _TCA8418_UP:
+            case TCA8418KeyboardBase::UP:
                 e.inputEvent = meshtastic_ModuleConfig_CannedMessageConfig_InputEventChar_UP;
                 e.kbchar = 0x00;
                 break;
-            case _TCA8418_DOWN:
+            case TCA8418KeyboardBase::DOWN:
                 e.inputEvent = meshtastic_ModuleConfig_CannedMessageConfig_InputEventChar_DOWN;
                 e.kbchar = 0x00;
                 break;
-            case _TCA8418_RIGHT:
+            case TCA8418KeyboardBase::RIGHT:
                 e.inputEvent = meshtastic_ModuleConfig_CannedMessageConfig_InputEventChar_RIGHT;
                 e.kbchar = 0x00;
                 break;
-            case _TCA8418_BSP:
+            case TCA8418KeyboardBase::BSP:
                 e.inputEvent = meshtastic_ModuleConfig_CannedMessageConfig_InputEventChar_BACK;
                 e.kbchar = 0x08;
                 break;
-            case _TCA8418_SELECT:
+            case TCA8418KeyboardBase::SELECT:
                 e.inputEvent = meshtastic_ModuleConfig_CannedMessageConfig_InputEventChar_SELECT;
                 e.kbchar = 0x0d;
                 break;
-            case _TCA8418_ESC:
+            case TCA8418KeyboardBase::ESC:
                 e.inputEvent = meshtastic_ModuleConfig_CannedMessageConfig_InputEventChar_CANCEL;
                 e.kbchar = 0x1b;
                 break;
+            case 0x9E:
+                e.inputEvent = ANYKEY;
+                e.kbchar = INPUT_BROKER_MSG_GPS_TOGGLE;
+                break;
+            case 0xAF:
+                e.inputEvent = ANYKEY;
+                e.kbchar = INPUT_BROKER_MSG_SEND_PING;
+                break;
+            case 0xAC:
+                e.inputEvent = ANYKEY;
+                e.kbchar = INPUT_BROKER_MSG_MUTE_TOGGLE;
+                break;
+            case 0xAA:
+                e.inputEvent = ANYKEY;
+                e.kbchar = INPUT_BROKER_MSG_BLUETOOTH_TOGGLE;
+                break;
+            case 0xAB:
+                e.inputEvent = ANYKEY;
+                e.kbchar = INPUT_BROKER_MSG_BLUETOOTH_TOGGLE;
+                break;
+            case 0x09:
+                e.inputEvent = ANYKEY;
+                e.kbchar = 0x09; // Tab
+                break;
             default:
                 if (nextEvent > 127) {
                     e.inputEvent = meshtastic_ModuleConfig_CannedMessageConfig_InputEventChar_NONE;
@@ -291,6 +331,7 @@ int32_t KbI2cBase::runOnce()
                 LOG_DEBUG("TCA8418 Notifying: %i Char: %c", e.inputEvent, e.kbchar);
                 this->notifyObservers(&e);
             }
+            TCAKeyboard.trigger();
         }
         break;
     }

src/input/kbI2cBase.h

@@ -3,10 +3,11 @@
 #include "BBQ10Keyboard.h"
 #include "InputBroker.h"
 #include "MPR121Keyboard.h"
-#include "TCA8418Keyboard.h"
 #include "Wire.h"
 #include "concurrency/OSThread.h"
 
+class TCA8418KeyboardBase;
+
 class KbI2cBase : public Observable<const InputEvent *>, public concurrency::OSThread
 {
   public:
@@ -22,6 +23,6 @@ class KbI2cBase : public Observable<const InputEvent *>, public concurrency::OST
 
     BBQ10Keyboard Q10keyboard;
     MPR121Keyboard MPRkeyboard;
-    TCA8418Keyboard TCAKeyboard;
+    TCA8418KeyboardBase &TCAKeyboard;
     bool is_sym = false;
 };

src/main.cpp

@@ -363,6 +363,15 @@ void setup()
     pinMode(TFT_CS, OUTPUT);
     digitalWrite(TFT_CS, HIGH);
     delay(100);
+#elif defined(T_DECK_PRO)
+    pinMode(LORA_EN, OUTPUT);
+    digitalWrite(LORA_EN, HIGH);
+    pinMode(LORA_CS, OUTPUT);
+    digitalWrite(LORA_CS, HIGH);
+    pinMode(SDCARD_CS, OUTPUT);
+    digitalWrite(SDCARD_CS, HIGH);
+    pinMode(PIN_EINK_CS, OUTPUT);
+    digitalWrite(PIN_EINK_CS, HIGH);
 #endif
 
     concurrency::hasBeenSetup = true;

src/mesh/NodeDB.cpp

@@ -664,7 +664,6 @@ void NodeDB::installDefaultConfig(bool preserveKey = false)
     config.display.screen_on_secs = 30;
     config.display.wake_on_tap_or_motion = true;
 #endif
-
 #if defined(ARCH_ESP32) && !MESHTASTIC_EXCLUDE_WIFI
     if (WiFiOTA::isUpdated()) {
         WiFiOTA::recoverConfig(&config.network);
@@ -720,6 +719,13 @@ void NodeDB::installDefaultModuleConfig()
     moduleConfig.external_notification.alert_message_buzzer = true;
     moduleConfig.external_notification.nag_timeout = 60;
 #endif
+#if defined(PIN_VIBRATION)
+    moduleConfig.external_notification.enabled = true;
+    moduleConfig.external_notification.output_vibra = PIN_VIBRATION;
+    moduleConfig.external_notification.alert_message_vibra = true;
+    moduleConfig.external_notification.output_ms = 500;
+    moduleConfig.external_notification.nag_timeout = 2;
+#endif
 #if defined(RAK4630) || defined(RAK11310)
     // Default to RAK led pin 2 (blue)
     moduleConfig.external_notification.enabled = true;

src/platform/extra_variants/t_deck_pro/variant.cpp

@@ -0,0 +1,28 @@
+#include "configuration.h"
+
+#ifdef T_DECK_PRO
+
+#include "input/TouchScreenImpl1.h"
+#include <CSE_CST328.h>
+#include <Wire.h>
+
+CSE_CST328 tsPanel = CSE_CST328(EINK_WIDTH, EINK_HEIGHT, &Wire, CST328_PIN_RST, CST328_PIN_INT);
+
+bool readTouch(int16_t *x, int16_t *y)
+{
+    if (tsPanel.getTouches()) {
+        *x = tsPanel.getPoint(0).x;
+        *y = tsPanel.getPoint(0).y;
+        return true;
+    }
+    return false;
+}
+
+// T-Deck Pro specific init
+void lateInitVariant()
+{
+    tsPanel.begin();
+    touchScreenImpl1 = new TouchScreenImpl1(EINK_WIDTH, EINK_HEIGHT, readTouch);
+    touchScreenImpl1->init();
+}
+#endif

src/power.h

@@ -122,6 +122,8 @@ class Power : private concurrency::OSThread
     bool analogInit();
     /// Setup a Lipo battery level sensor
     bool lipoInit();
+    /// Setup a Lipo charger
+    bool lipoChargerInit();
 
   private:
     // open circuit voltage lookup table

variants/t-deck-pro/pins_arduino.h

@@ -0,0 +1,19 @@
+#ifndef Pins_Arduino_h
+#define Pins_Arduino_h
+
+#include <stdint.h>
+
+#define USB_VID 0x303a
+#define USB_PID 0x1001
+
+// used for keyboard, touch controller, beam sensor, and gyroscope
+static const uint8_t SDA = 13;
+static const uint8_t SCL = 14;
+
+// Default SPI will be mapped to Radio
+static const uint8_t SS = 3;
+static const uint8_t MOSI = 33;
+static const uint8_t MISO = 47;
+static const uint8_t SCK = 36;
+
+#endif /* Pins_Arduino_h */

variants/t-deck-pro/platformio.ini

@@ -0,0 +1,24 @@
+[env:t-deck-pro]
+extends = esp32s3_base
+board = t-deck-pro
+board_check = true
+upload_protocol = esptool
+
+build_flags = 
+  ${esp32_base.build_flags} -I variants/t-deck-pro
+  -D T_DECK_PRO
+  -D PRIVATE_HW ; TODO: remove me
+  -D GPS_POWER_TOGGLE
+  -D USE_EINK
+  -D EINK_DISPLAY_MODEL=GxEPD2_310_GDEQ031T10
+  -D EINK_WIDTH=240
+  -D EINK_HEIGHT=320
+  ;-D USE_EINK_DYNAMICDISPLAY            ; Enable Dynamic EInk
+  -D EINK_LIMIT_FASTREFRESH=10           ; How many consecutive fast-refreshes are permitted
+  -D EINK_LIMIT_GHOSTING_PX=2000        ; (Optional) How much image ghosting is tolerated
+
+lib_deps =
+  ${esp32s3_base.lib_deps}
+  https://github.com/ZinggJM/GxEPD2/archive/refs/tags/1.6.4.zip
+  https://github.com/CIRCUITSTATE/CSE_Touch/archive/b44f23b6f870b848f1fbe453c190879bc6cfaafa.zip
+  https://github.com/CIRCUITSTATE/CSE_CST328/archive/refs/tags/v0.0.4.zip

variants/t-deck-pro/variant.h

@@ -0,0 +1,88 @@
+// Display (E-Ink)
+#define PIN_EINK_CS 34
+#define PIN_EINK_BUSY 37
+#define PIN_EINK_DC 35
+#define PIN_EINK_RES -1
+#define PIN_EINK_SCLK 36
+#define PIN_EINK_MOSI 47
+
+#define I2C_SDA SDA
+#define I2C_SCL SCL
+
+// CST328 touch screen (implementation in src/platform/extra_variants/t_deck_pro/variant.cpp)
+#define HAS_TOUCHSCREEN 1
+#define CST328_PIN_INT 12
+#define CST328_PIN_RST 45
+
+#define USE_POWERSAVE
+#define SLEEP_TIME 120
+
+// GNNS
+#define HAS_GPS 1
+#define GPS_BAUDRATE 38400
+#define PIN_GPS_EN 15
+#define GPS_EN_ACTIVE 1
+#define GPS_RX_PIN 44
+#define GPS_TX_PIN 43
+#define PIN_GPS_PPS 1
+
+#define BUTTON_PIN 0
+
+// vibration motor
+#define PIN_VIBRATION 2
+
+// Have SPI interface SD card slot
+#define HAS_SDCARD
+#define SDCARD_USE_SPI1
+#define SPI_MOSI (33)
+#define SPI_SCK (36)
+#define SPI_MISO (47)
+#define SPI_CS (48)
+#define SDCARD_CS SPI_CS
+#define SD_SPI_FREQUENCY 75000000U
+
+// TCA8418 keyboard
+#define KB_BL_PIN 42
+#define CANNED_MESSAGE_MODULE_ENABLE 1
+
+// microphone PCM5102A
+#define PCM5102A_SCK 47
+#define PCM5102A_DIN 17
+#define PCM5102A_LRCK 18
+
+// LTR_553ALS light sensor
+#define HAS_LTR553ALS
+
+// gyroscope BHI260AP
+#define BOARD_1V8_EN 38
+#define HAS_BHI260AP
+
+// battery charger BQ25896
+#define HAS_PPM 1
+#define XPOWERS_CHIP_BQ25896
+
+// LoRa
+#define USE_SX1262
+#define USE_SX1268
+
+#define LORA_EN 46 // LoRa enable pin
+#define LORA_SCK 36
+#define LORA_MISO 47
+#define LORA_MOSI 33
+#define LORA_CS 3
+
+#define LORA_DIO0 -1 // a No connect on the SX1262 module
+#define LORA_RESET 4
+#define LORA_DIO1 5 // SX1262 IRQ
+#define LORA_DIO2 6 // SX1262 BUSY
+#define LORA_DIO3   // Not connected on PCB, but internally on the TTGO SX1262, if DIO3 is high the TXCO is enabled
+
+#define SX126X_CS LORA_CS // FIXME - we really should define LORA_CS instead
+#define SX126X_DIO1 LORA_DIO1
+#define SX126X_BUSY LORA_DIO2
+#define SX126X_RESET LORA_RESET
+// Not really an E22 but TTGO seems to be trying to clone that
+#define SX126X_DIO2_AS_RF_SWITCH
+#define SX126X_DIO3_TCXO_VOLTAGE 2.4
+// Internally the TTGO module hooks the SX1262-DIO2 in to control the TX/RX switch (which is the default for the sx1262interface
+// code)