Arduino Nesso N1 support

src/detect/ScanI2CTwoWire.cpp

@@ -298,7 +298,7 @@ void ScanI2CTwoWire::scanPort(I2CPort port, uint8_t *address, uint8_t asize)
                 type = AHT10;
                 break;
 #endif
-#if !defined(M5STACK_UNITC6L)
+#if !defined(M5STACK_UNITC6L) && !defined(ARDUINO_NESSO_N1)
             case INA_ADDR:
             case INA_ADDR_ALTERNATE:
             case INA_ADDR_WAVESHARE_UPS:

src/graphics/TFTDisplay.cpp

@@ -15,6 +15,10 @@
 extern SX1509 gpioExtender;
 #endif
 
+#ifdef TFT_BL_EXT
+#include "GpioExtLogic.h"
+#endif
+
 #ifdef TFT_MESH_OVERRIDE
 uint16_t TFT_MESH = TFT_MESH_OVERRIDE;
 #else
@@ -479,7 +483,7 @@ class LGFX : public lgfx::LGFX_Device
     lgfx::Bus_SPI _bus_instance;
     lgfx::Light_PWM _light_instance;
 #if HAS_TOUCHSCREEN
-#if defined(T_WATCH_S3) || defined(ELECROW)
+#if defined(T_WATCH_S3) || defined(ELECROW) || defined(ARDUINO_NESSO_N1)
     lgfx::Touch_FT5x06 _touch_instance;
 #elif defined(HELTEC_V4_TFT)
     lgfx::TOUCH_CHSC6X _touch_instance;
@@ -1160,6 +1164,8 @@ TFTDisplay::TFTDisplay(uint8_t address, int sda, int scl, OLEDDISPLAY_GEOMETRY g
             virtPin, p); // We just leave this created object on the heap so it can stay watching virtPin and driving en_gpio
         p = virtPin;
     }
+#elif defined(TFT_BL_EXT)
+    GpioPin *p = new GpioExtPin(TFT_BL_EXT);
 #else
     GpioPin *p = new GpioVirtPin(); // Just simulate a pin
 #endif

src/input/i2cButton.cpp

@@ -2,7 +2,7 @@
 #include "meshUtils.h"
 
 #include "configuration.h"
-#if defined(M5STACK_UNITC6L)
+#if defined(M5STACK_UNITC6L) || defined(ARDUINO_NESSO_N1)
 
 #include "MeshService.h"
 #include "RadioLibInterface.h"
@@ -92,4 +92,4 @@ int32_t i2cButtonThread::runOnce()
     }
     return 50;
 }
-#endif
+#endif

src/input/i2cButton.h

@@ -4,7 +4,7 @@
 #include "OneButton.h"
 #include "concurrency/OSThread.h"
 #include "configuration.h"
-#if defined(M5STACK_UNITC6L)
+#if defined(M5STACK_UNITC6L) || defined(ARDUINO_NESSO_N1)
 
 class i2cButtonThread : public Observable<const InputEvent *>, public concurrency::OSThread
 {

src/main.cpp

@@ -563,7 +563,7 @@ void setup()
 #endif
 #endif
 
-#if defined(M5STACK_UNITC6L)
+#if defined(M5STACK_UNITC6L) || defined(ARDUINO_NESSO_N1)
     pinMode(LORA_CS, OUTPUT);
     digitalWrite(LORA_CS, 1);
     c6l_init();

src/modules/Modules.cpp

@@ -203,7 +203,7 @@ void setupModules()
 #endif
         cardKbI2cImpl = new CardKbI2cImpl();
         cardKbI2cImpl->init();
-#if defined(M5STACK_UNITC6L)
+#if defined(M5STACK_UNITC6L) || defined(ARDUINO_NESSO_N1)
         i2cButton = new i2cButtonThread("i2cButtonThread");
 #endif
 #ifdef INPUTBROKER_MATRIX_TYPE

variants/esp32c6/arduino_nesso_n1/GpioExtLogic.cpp

@@ -0,0 +1,12 @@
+#include "GpioExtLogic.h"
+#include <assert.h>
+
+void GpioExtPin::set(bool value)
+{
+    gpio_ext_set(this->address, this->pin, value);
+}
+
+uint8_t GpioExtPin::get()
+{
+    return gpio_ext_get(this->address, this->pin);
+}

variants/esp32c6/arduino_nesso_n1/GpioExtLogic.h

@@ -0,0 +1,14 @@
+#include "GpioLogic.h"
+
+class GpioExtPin : public GpioPin
+{
+    uint32_t num;
+
+  public:
+    GpioExtPin(uint16_t _pin) : pin(_pin & 0x3F), address(_pin & 0x100 ? 0x44 : 0x43){};
+    uint8_t pin;
+    uint8_t address;
+
+    void set(bool value);
+    uint8_t get();
+};

variants/esp32c6/arduino_nesso_n1/pins_arduino.h

@@ -0,0 +1,22 @@
+#ifndef Pins_Arduino_h
+#define Pins_Arduino_h
+
+#include <stdint.h>
+
+#define USB_VID 0x303A
+#define USB_PID 0x1001
+
+static const uint8_t TX = -1;
+static const uint8_t RX = -1;
+
+static const uint8_t SDA = 10;
+static const uint8_t SCL = 8;
+
+// Default SPI will be mapped to Radio
+static const uint8_t MOSI = 21;
+static const uint8_t MISO = 22;
+static const uint8_t SCK = 20;
+static const uint8_t SS = 23;
+
+#endif /* Pins_Arduino_h */
+

variants/esp32c6/arduino_nesso_n1/platformio.ini

@@ -0,0 +1,36 @@
+[env:arduino-nesso-n1]
+extends = esp32c6_base
+board = esp32-c6-devkitc-1
+upload_protocol = esptool
+build_unflags =
+  -D HAS_BLUETOOTH
+  -D MESHTASTIC_EXCLUDE_BLUETOOTH
+  -D HAS_WIFI
+lib_deps =
+  ${esp32c6_base.lib_deps}
+  h2zero/NimBLE-Arduino@^2.3.6
+  lovyan03/LovyanGFX@^1.2.0
+  https://github.com/mverch67/BQ27220/archive/07d92be846abd8a0258a50c23198dac0858b22ed.zip
+build_flags = 
+  ${esp32c6_base.build_flags}
+  -D PRIVATE_HW
+  -D ARDUINO_NESSO_N1
+  -I variants/esp32c6/arduino_nesso_n1
+  -DMESHTASTIC_EXCLUDE_PAXCOUNTER=1
+  -DSOC_USB_OTG_SUPPORTED=1
+  -DARDUINO_USB_CDC_ON_BOOT=1
+  -DARDUINO_USB_MODE=1
+  -D HAS_BLUETOOTH=1
+  -D MESHTASTIC_EXCLUDE_WEBSERVER
+  -D MESHTASTIC_EXCLUDE_MQTT
+  -DCONFIG_BT_NIMBLE_EXT_ADV=1
+  -DCONFIG_BT_NIMBLE_MAX_EXT_ADV_INSTANCES=2
+  -D NIMBLE_TWO
+  -D CORE_DEBUG_LEVEL=5
+  -D _ESP_LOGLEVEL_=5
+monitor_speed=115200
+lib_ignore =
+  NonBlockingRTTTL
+  libpax
+build_src_filter = 
+ ${esp32c6_base.build_src_filter} +<../variants/esp32c6/arduino_nesso_n1>

variants/esp32c6/arduino_nesso_n1/variant.cpp

@@ -0,0 +1,127 @@
+#include "driver/gpio.h"
+#include <Arduino.h>
+#include <Wire.h>
+// I2C device addr
+#define PI4IO_M_ADDR 0x43
+#define PI4IO_M_ADDR2 0x44
+
+// PI4IO registers
+#define PI4IO_REG_CHIP_RESET 0x01
+#define PI4IO_REG_IO_DIR 0x03
+#define PI4IO_REG_OUT_SET 0x05
+#define PI4IO_REG_OUT_H_IM 0x07
+#define PI4IO_REG_IN_DEF_STA 0x09
+#define PI4IO_REG_PULL_EN 0x0B
+#define PI4IO_REG_PULL_SEL 0x0D
+#define PI4IO_REG_IN_STA 0x0F
+#define PI4IO_REG_INT_MASK 0x11
+#define PI4IO_REG_IRQ_STA 0x13
+// PI4IO
+
+#define setbit(x, y) x |= (0x01 << y)
+#define clrbit(x, y) x &= ~(0x01 << y)
+#define reversebit(x, y) x ^= (0x01 << y)
+#define getbit(x, y) ((x) >> (y)&0x01)
+
+void i2c_read_byte(uint8_t addr, uint8_t reg, uint8_t *value)
+{
+    Wire.beginTransmission(addr);
+    Wire.write(reg);
+    Wire.endTransmission();
+    Wire.requestFrom(addr, 1);
+    *value = Wire.read();
+}
+
+/*******************************************************************/
+void i2c_write_byte(uint8_t addr, uint8_t reg, uint8_t value)
+{
+    Wire.beginTransmission(addr);
+    Wire.write(reg);
+    Wire.write(value);
+    Wire.endTransmission();
+}
+/*******************************************************************/
+void c6l_init()
+{
+    // P7 LoRa Reset
+    // P6 RF Switch
+    // P5 LNA Enable
+    // P1 KEY2
+    // P0 KEY1
+    // P107 LED_BUILTIN
+    // P106 LCD_BACKLIGHT
+    // P105 VIN_DETECT
+    // P102 GROVE_POWER_EN
+    // P101 LCD_RESET
+    // P100 POWEROFF
+
+    printf("pi4io_init\n");
+    uint8_t in_data;
+    i2c_write_byte(PI4IO_M_ADDR, PI4IO_REG_CHIP_RESET, 0xFF);
+    vTaskDelay(10 / portTICK_PERIOD_MS);
+    i2c_read_byte(PI4IO_M_ADDR, PI4IO_REG_CHIP_RESET, &in_data);
+    vTaskDelay(10 / portTICK_PERIOD_MS);
+    i2c_write_byte(PI4IO_M_ADDR, PI4IO_REG_IO_DIR, 0b11000000); // 0: input 1: output
+    vTaskDelay(10 / portTICK_PERIOD_MS);
+    i2c_write_byte(PI4IO_M_ADDR, PI4IO_REG_OUT_H_IM, 0b00111100); // Output High-Impedance, 1 high-impedance
+    vTaskDelay(10 / portTICK_PERIOD_MS);
+    i2c_write_byte(PI4IO_M_ADDR, PI4IO_REG_PULL_SEL, 0b11000011); // pull up/down select, 0 down, 1 up
+    vTaskDelay(10 / portTICK_PERIOD_MS);
+    i2c_write_byte(PI4IO_M_ADDR, PI4IO_REG_PULL_EN, 0b11000011); // pull up/down enable, 0 disable, 1 enable
+    vTaskDelay(10 / portTICK_PERIOD_MS);
+    i2c_write_byte(PI4IO_M_ADDR, PI4IO_REG_IN_DEF_STA, 0b00000011); // P0 P1 Default state HIGH, interrupt when pressed
+    vTaskDelay(10 / portTICK_PERIOD_MS);
+    i2c_write_byte(PI4IO_M_ADDR, PI4IO_REG_INT_MASK, 0b11111100); // P0 P1 Interrupt 0 enable, 1 disable
+    vTaskDelay(10 / portTICK_PERIOD_MS);
+    i2c_write_byte(PI4IO_M_ADDR, PI4IO_REG_OUT_SET, 0b10000000); // default output to 0
+    vTaskDelay(10 / portTICK_PERIOD_MS);
+    i2c_read_byte(PI4IO_M_ADDR, PI4IO_REG_IRQ_STA, &in_data); // Read IRQ_STA clear register
+
+    i2c_read_byte(PI4IO_M_ADDR, PI4IO_REG_OUT_SET, &in_data);
+    setbit(in_data, 6); // HIGH
+    i2c_write_byte(PI4IO_M_ADDR, PI4IO_REG_OUT_SET, in_data);
+
+    i2c_write_byte(PI4IO_M_ADDR2, PI4IO_REG_CHIP_RESET, 0xFF);
+    vTaskDelay(10 / portTICK_PERIOD_MS);
+    i2c_read_byte(PI4IO_M_ADDR2, PI4IO_REG_CHIP_RESET, &in_data);
+    vTaskDelay(10 / portTICK_PERIOD_MS);
+    i2c_write_byte(PI4IO_M_ADDR2, PI4IO_REG_IO_DIR, 0b11000110); // 0: input 1: output
+    vTaskDelay(10 / portTICK_PERIOD_MS);
+    i2c_write_byte(PI4IO_M_ADDR2, PI4IO_REG_OUT_H_IM, 0b00111000); // Output High-Impedance, 1 high-impedance
+    vTaskDelay(10 / portTICK_PERIOD_MS);
+    i2c_write_byte(PI4IO_M_ADDR2, PI4IO_REG_PULL_SEL, 0b11000111); // pull up/down select, 0 down, 1 up
+    vTaskDelay(10 / portTICK_PERIOD_MS);
+    i2c_write_byte(PI4IO_M_ADDR2, PI4IO_REG_PULL_EN, 0b11000111); // pull up/down enable, 0 disable, 1 enable
+    vTaskDelay(10 / portTICK_PERIOD_MS);
+    i2c_write_byte(PI4IO_M_ADDR2, PI4IO_REG_IN_DEF_STA, 0b00000000); // P0 P1 Default state HIGH, interrupt when pressed
+    vTaskDelay(10 / portTICK_PERIOD_MS);
+    i2c_write_byte(PI4IO_M_ADDR2, PI4IO_REG_INT_MASK, 0b11111111); // P0 P1 Interrupt 0 enable, 1 disable
+    vTaskDelay(10 / portTICK_PERIOD_MS);
+    i2c_write_byte(PI4IO_M_ADDR2, PI4IO_REG_OUT_SET, 0b11000110); // default output to 0
+
+    // AW32001E - address 0x49
+    // charge current 256mA (default 128mA)
+    i2c_write_byte(0x49, 0x2, 0x1f);
+    // charge voltage 4.200(default)
+    // disable watch dog timer (default: 0x1f)
+    i2c_write_byte(0x49, 0x5, 0x1a);
+    // UVLO: 2.580 (default: 2.760), charge enable, disable HIZ (default: 0xac)
+    i2c_write_byte(0x49, 0x1, 0xa2);
+    // DPM 4.520 (default)
+    i2c_write_byte(0x49, 0x0, 0x8f);
+}
+
+void gpio_ext_set(uint8_t address, uint8_t pin, bool value)
+{
+    uint8_t in_data;
+    i2c_read_byte(address, PI4IO_REG_OUT_SET, &in_data);
+    value ? setbit(in_data, pin) : clrbit(in_data, pin);
+    i2c_write_byte(address, PI4IO_REG_OUT_SET, in_data);
+}
+
+uint8_t gpio_ext_get(uint8_t address, uint8_t pin)
+{
+    uint8_t in_data;
+    i2c_read_byte(address, PI4IO_REG_OUT_SET, &in_data);
+    return getbit(in_data, pin);
+}

variants/esp32c6/arduino_nesso_n1/variant.h

@@ -0,0 +1,83 @@
+void c6l_init();
+void gpio_ext_set(uint8_t address, uint8_t pin, bool value);
+uint8_t gpio_ext_get(uint8_t address, uint8_t pin);
+
+#define HAS_GPS 0
+#define GPS_RX_PIN -1
+#define GPS_TX_PIN -1
+
+#define I2C_SDA 10
+#define I2C_SCL 8
+
+#define LCD_CS 17
+#define LCD_RS 16
+#define SYS_IRQ 3
+
+#define MOSI 21
+#define MISO 22
+#define SCK 20
+
+#define PIN_BUZZER 11
+
+#define IO_EXPANDER 0x40
+#define LCD_BACKLIGHT 0x106
+
+// #define BUTTON_PIN 9
+#define BUTTON_EXTENDER
+
+#undef LORA_SCK
+#undef LORA_MISO
+#undef LORA_MOSI
+#undef LORA_CS
+
+// battery charger BQ25896
+//#define HAS_PPM 1
+//#define XPOWERS_CHIP_BQ25896
+
+// battery quality management BQ27220
+#define HAS_BQ27220 1
+#define BQ27220_I2C_SDA I2C_SDA
+#define BQ27220_I2C_SCL I2C_SCL
+#define BQ27220_DESIGN_CAPACITY 250
+
+// WaveShare Core1262-868M OK
+// https://www.waveshare.com/wiki/Core1262-868M
+#define USE_SX1262
+
+#define LORA_MISO 22
+#define LORA_SCK 20
+#define LORA_MOSI 21
+#define LORA_CS 23
+#define LORA_RESET RADIOLIB_NC
+#define LORA_DIO1 15
+#define LORA_BUSY 19
+#define SX126X_CS LORA_CS
+#define SX126X_DIO1 LORA_DIO1
+#define SX126X_BUSY LORA_BUSY
+#define SX126X_RESET LORA_RESET
+#define SX126X_DIO2_AS_RF_SWITCH
+#define SX126X_DIO3_TCXO_VOLTAGE 3.0
+
+#define ST7789_DRIVER
+#define ST7789_CS 17
+#define ST7789_RS 16
+#define ST7789_SDA 21
+#define ST7789_SCK 20
+#define ST7789_RESET -1
+#define ST7789_MISO 22
+#define ST7789_BUSY -1
+#define ST7789_SPI_HOST SPI2_HOST
+#define SPI_FREQUENCY 40000000
+#define SPI_READ_FREQUENCY 16000000
+#define TFT_HEIGHT 240
+#define TFT_WIDTH 135
+#define TFT_OFFSET_X 52
+#define TFT_OFFSET_Y 40
+#define TFT_OFFSET_ROTATION 1
+#define SCREEN_TRANSITION_FRAMERATE 10
+#define BRIGHTNESS_DEFAULT 130
+#define HAS_TOUCHSCREEN 1
+#define TOUCH_I2C_PORT 0
+#define TOUCH_SLAVE_ADDRESS 0x38
+#define SCREEN_TOUCH_INT 3
+#define TFT_BL_EXT (LCD_BACKLIGHT | IO_EXPANDER)