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71 lines
2.6 KiB
C++
71 lines
2.6 KiB
C++
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#include "modbus_switch.h"
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#include "esphome/core/log.h"
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namespace esphome {
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namespace modbus_controller {
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static const char *const TAG = "modbus_controller.switch";
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void ModbusSwitch::setup() {
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// value isn't required
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// without it we crash on save
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this->get_initial_state();
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}
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void ModbusSwitch::dump_config() { LOG_SWITCH(TAG, "Modbus Controller Switch", this); }
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void ModbusSwitch::parse_and_publish(const std::vector<uint8_t> &data) {
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bool value = false;
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switch (this->register_type) {
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case ModbusRegisterType::DISCRETE_INPUT:
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case ModbusRegisterType::COIL:
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// offset for coil is the actual number of the coil not the byte offset
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value = coil_from_vector(this->offset, data);
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break;
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default:
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value = get_data<uint16_t>(data, this->offset) & this->bitmask;
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break;
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}
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// Is there a lambda registered
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// call it with the pre converted value and the raw data array
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if (this->publish_transform_func_) {
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// the lambda can parse the response itself
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auto val = (*this->publish_transform_func_)(this, value, data);
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if (val.has_value()) {
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ESP_LOGV(TAG, "Value overwritten by lambda");
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value = val.value();
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}
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}
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ESP_LOGV(TAG, "Publish '%s': new value = %s type = %d address = %X offset = %x", this->get_name().c_str(),
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ONOFF(value), (int) this->register_type, this->start_address, this->offset);
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this->publish_state(value);
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}
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void ModbusSwitch::write_state(bool state) {
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// This will be called every time the user requests a state change.
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ModbusCommandItem cmd;
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ESP_LOGV(TAG, "write_state '%s': new value = %s type = %d address = %X offset = %x", this->get_name().c_str(),
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ONOFF(state), (int) this->register_type, this->start_address, this->offset);
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switch (this->register_type) {
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case ModbusRegisterType::COIL:
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// offset for coil and discrete inputs is the coil/register number not bytes
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cmd = ModbusCommandItem::create_write_single_coil(parent_, this->start_address + this->offset, state);
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break;
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case ModbusRegisterType::DISCRETE_INPUT:
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cmd = ModbusCommandItem::create_write_single_command(parent_, this->start_address + this->offset, state);
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break;
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default:
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// since offset is in bytes and a register is 16 bits we get the start by adding offset/2
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cmd = ModbusCommandItem::create_write_single_command(parent_, this->start_address + this->offset / 2,
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state ? 0xFFFF & this->bitmask : 0);
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break;
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}
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this->parent_->queue_command(cmd);
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publish_state(state);
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}
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// ModbusSwitch end
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} // namespace modbus_controller
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} // namespace esphome
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