I2C device manager (#2282)

* message on dev list change

* dc detect

* added sht3x sensor.

* separete environment data from light

* max17055 moved to i2c dev

* sht fix, goterror detection fix

* fix ext sensor app display for a lot of devices.

* added bh1750 driver

* autoscan on main view

* added devlist mutex

* better timing

* fix h2 sw8 on poweron by usb

firmware/common/i2cdev_bh1750.cpp

@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2024 HTotoo.
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "i2cdev_bh1750.hpp"
+#include "utility.hpp"
+#include <algorithm>
+#include <cstdint>
+
+namespace i2cdev {
+
+#define BH1750_CONV_FACTOR 1.2
+#define BH1750_MODE 0x13
+
+bool I2cDev_BH1750::init(uint8_t addr_) {
+    if (addr_ != I2CDEV_BH1750_ADDR_1) return false;
+    addr = addr_;
+    model = I2CDECMDL_BH1750;
+    query_interval = 3;
+
+    // power up
+    uint8_t tmp = 0x01;
+    if (!i2c_write(nullptr, 0, &tmp, 1)) {
+        return false;
+    }
+    chThdSleepMilliseconds(10);
+    // set mode
+    tmp = BH1750_MODE;
+    if (!i2c_write(nullptr, 0, &tmp, 1)) {
+        return false;
+    }
+    chThdSleepMilliseconds(10);
+
+    /*
+    // unused, since default
+    // mtreg
+    tmp = (0b01000 << 3) | (69 >> 5);
+    if (!i2c_write(nullptr, 0, &tmp, 1)) {
+        return false;
+    }
+    chThdSleepMilliseconds(10);
+    tmp = (0b011 << 5) | (69 & 0b11111);
+    if (!i2c_write(nullptr, 0, &tmp, 1)) {
+        return false;
+    }
+    chThdSleepMilliseconds(10);
+    // mode
+    tmp = BH1750_MODE;
+    if (!i2c_write(nullptr, 0, &tmp, 1)) {
+        return false;
+    }
+    chThdSleepMilliseconds(10);
+    */
+    return true;
+}
+
+void I2cDev_BH1750::update() {
+    uint16_t light = readLight();
+    LightDataMessage msg{light};
+    EventDispatcher::send_message(msg);
+}
+
+uint16_t I2cDev_BH1750::readLight() {
+    float level = -1.0;
+    uint8_t tmp[2];
+    // Read two bytes from the sensor, which are low and high parts of the sensor value
+    if (i2c_read(nullptr, 0, tmp, 2)) {
+        uint16_t t = (tmp[0] << 8) | tmp[1];
+        level = t;
+    }
+
+    if (level != -1.0) {
+        // Convert raw value to lux
+        level /= BH1750_CONV_FACTOR;
+    } else
+        return 0;
+    return level;
+}
+
+} /* namespace i2cdev */