Add support for TMP1075 temperature sensor (#4776)

* Add support for TMP1075 temperature sensor

TMP1075 is a temperature sensor with I2C interface in industry standard
LM75 form factor and pinout.

https://www.ti.com/product/TMP1075

Example YAML:

```yaml
sensor:
  - platform: tmp1075
    name: TMP1075 Temperature
    id: radiator_temp
    update_interval: 10s
    i2c_id: i2c_bus_1
    conversion_rate: 27.5ms
    alert:
      limit_low: 50
      limit_high: 75
      fault_count: 1
      polarity: active_high
```

* Add myself as codeowner of the TMP1075 component

* Include '°C' unit when logging low/high limit setting

* Reformat

No functional changes.

* Fix logging: use %.4f for temperatures, not %d

* Fix config initialisation

* Use relative include for `tmp1075.h`

* Apply formatting changes suggested by script/clang-tidy for ESP32

* Add YAML to test1.yaml

* Fix test1.yaml by giving TMP1075 a name

* Less verbose logging (debug -> verbose level)

* Schema: reduce accuracy_decimals to 2

* I2C address as hexadecimal

* Proper name for enum in Python

The enum on the C++ side was renamed (clang-tidy) but I forgot to take that
into account in the Python code.

* Expose 'alert function' to the code generator/YAML params and remove 'shutdown'

Shutdown mode doesn't work the way I expect it, so remove it until someone
actually asks for it.

Also 'alert mode' was renamed to 'alert function' for clarity.

* Move simple setters to header file

* Remove `load_config_();` function

esphome/components/tmp1075/tmp1075.cpp

@@ -0,0 +1,129 @@
+#include "esphome/core/log.h"
+#include "tmp1075.h"
+
+namespace esphome {
+namespace tmp1075 {
+
+static const char *const TAG = "tmp1075";
+
+constexpr uint8_t REG_TEMP = 0x0;   // Temperature result
+constexpr uint8_t REG_CFGR = 0x1;   // Configuration
+constexpr uint8_t REG_LLIM = 0x2;   // Low limit
+constexpr uint8_t REG_HLIM = 0x3;   // High limit
+constexpr uint8_t REG_DIEID = 0xF;  // Device ID
+
+constexpr uint16_t EXPECT_DIEID = 0x0075;  // Expected Device ID.
+
+static uint16_t temp2regvalue(float temp);
+static float regvalue2temp(uint16_t regvalue);
+
+void TMP1075Sensor::setup() {
+  uint8_t die_id;
+  if (!this->read_byte(REG_DIEID, &die_id)) {
+    ESP_LOGW(TAG, "'%s' - unable to read ID", this->name_.c_str());
+    this->mark_failed();
+    return;
+  }
+  if (die_id != EXPECT_DIEID) {
+    ESP_LOGW(TAG, "'%s' - unexpected ID 0x%x found, expected 0x%x", this->name_.c_str(), die_id, EXPECT_DIEID);
+    this->mark_failed();
+    return;
+  }
+
+  this->write_config();
+}
+
+void TMP1075Sensor::update() {
+  uint16_t regvalue;
+  if (!read_byte_16(REG_TEMP, &regvalue)) {
+    ESP_LOGW(TAG, "'%s' - unable to read temperature register", this->name_.c_str());
+    this->status_set_warning();
+    return;
+  }
+
+  const float temp = regvalue2temp(regvalue);
+  this->publish_state(temp);
+}
+
+void TMP1075Sensor::dump_config() {
+  LOG_SENSOR("", "TMP1075 Sensor", this);
+  if (this->is_failed()) {
+    ESP_LOGE(TAG, "  Communication with TMP1075 failed!");
+    return;
+  }
+  ESP_LOGCONFIG(TAG, "  limit low  : %.4f °C", alert_limit_low_);
+  ESP_LOGCONFIG(TAG, "  limit high : %.4f °C", alert_limit_high_);
+  ESP_LOGCONFIG(TAG, "  oneshot    : %d", config_.fields.oneshot);
+  ESP_LOGCONFIG(TAG, "  rate       : %d", config_.fields.rate);
+  ESP_LOGCONFIG(TAG, "  fault_count: %d", config_.fields.faults);
+  ESP_LOGCONFIG(TAG, "  polarity   : %d", config_.fields.polarity);
+  ESP_LOGCONFIG(TAG, "  alert_mode : %d", config_.fields.alert_mode);
+  ESP_LOGCONFIG(TAG, "  shutdown   : %d", config_.fields.shutdown);
+}
+
+void TMP1075Sensor::set_fault_count(const int faults) {
+  if (faults < 1) {
+    ESP_LOGE(TAG, "'%s' - fault_count too low: %d", this->name_.c_str(), faults);
+    return;
+  }
+  if (faults > 4) {
+    ESP_LOGE(TAG, "'%s' - fault_count too high: %d", this->name_.c_str(), faults);
+    return;
+  }
+  config_.fields.faults = faults - 1;
+}
+
+void TMP1075Sensor::log_config_() {
+  ESP_LOGV(TAG, "  oneshot   : %d", config_.fields.oneshot);
+  ESP_LOGV(TAG, "  rate      : %d", config_.fields.rate);
+  ESP_LOGV(TAG, "  faults    : %d", config_.fields.faults);
+  ESP_LOGV(TAG, "  polarity  : %d", config_.fields.polarity);
+  ESP_LOGV(TAG, "  alert_mode: %d", config_.fields.alert_mode);
+  ESP_LOGV(TAG, "  shutdown  : %d", config_.fields.shutdown);
+}
+
+void TMP1075Sensor::write_config() {
+  send_alert_limit_low_();
+  send_alert_limit_high_();
+  send_config_();
+}
+
+void TMP1075Sensor::send_config_() {
+  ESP_LOGV(TAG, "'%s' - sending configuration %04x", this->name_.c_str(), config_.regvalue);
+  log_config_();
+  if (!this->write_byte_16(REG_CFGR, config_.regvalue)) {
+    ESP_LOGW(TAG, "'%s' - unable to write configuration register", this->name_.c_str());
+    return;
+  }
+}
+
+void TMP1075Sensor::send_alert_limit_low_() {
+  ESP_LOGV(TAG, "'%s' - sending alert limit low %.3f °C", this->name_.c_str(), alert_limit_low_);
+  const uint16_t regvalue = temp2regvalue(alert_limit_low_);
+  if (!this->write_byte_16(REG_LLIM, regvalue)) {
+    ESP_LOGW(TAG, "'%s' - unable to write low limit register", this->name_.c_str());
+    return;
+  }
+}
+
+void TMP1075Sensor::send_alert_limit_high_() {
+  ESP_LOGV(TAG, "'%s' - sending alert limit high %.3f °C", this->name_.c_str(), alert_limit_high_);
+  const uint16_t regvalue = temp2regvalue(alert_limit_high_);
+  if (!this->write_byte_16(REG_HLIM, regvalue)) {
+    ESP_LOGW(TAG, "'%s' - unable to write high limit register", this->name_.c_str());
+    return;
+  }
+}
+
+static uint16_t temp2regvalue(const float temp) {
+  const uint16_t regvalue = temp / 0.0625f;
+  return regvalue << 4;
+}
+
+static float regvalue2temp(const uint16_t regvalue) {
+  const int16_t signed_value = regvalue;
+  return (signed_value >> 4) * 0.0625f;
+}
+
+}  // namespace tmp1075
+}  // namespace esphome