54 lines
1.5 KiB
C++
54 lines
1.5 KiB
C++
#include "gp8403.h"
|
|
|
|
#include "esphome/core/log.h"
|
|
|
|
namespace esphome::gp8403 {
|
|
|
|
static const char *const TAG = "gp8403";
|
|
|
|
static const uint8_t RANGE_REGISTER = 0x01;
|
|
static const uint8_t OUTPUT_REGISTER = 0x02;
|
|
|
|
const LogString *model_to_string(GP8403Model model) {
|
|
switch (model) {
|
|
case GP8403Model::GP8403:
|
|
return LOG_STR("GP8403");
|
|
case GP8403Model::GP8413:
|
|
return LOG_STR("GP8413");
|
|
}
|
|
return LOG_STR("Unknown");
|
|
};
|
|
|
|
void GP8403Component::setup() { this->write_register(RANGE_REGISTER, (uint8_t *) (&this->voltage_), 1); }
|
|
|
|
void GP8403Component::dump_config() {
|
|
ESP_LOGCONFIG(TAG,
|
|
"GP8403:\n"
|
|
" Voltage: %dV\n"
|
|
" Model: %s",
|
|
this->voltage_ == GP8403_VOLTAGE_5V ? 5 : 10, LOG_STR_ARG(model_to_string(this->model_)));
|
|
LOG_I2C_DEVICE(this);
|
|
}
|
|
|
|
void GP8403Component::write_state(float state, uint8_t channel) {
|
|
uint16_t val = 0;
|
|
switch (this->model_) {
|
|
case GP8403Model::GP8403:
|
|
val = ((uint16_t) (4095 * state)) << 4;
|
|
break;
|
|
case GP8403Model::GP8413:
|
|
val = ((uint16_t) (32767 * state)) << 1;
|
|
break;
|
|
default:
|
|
ESP_LOGE(TAG, "Unknown model %s", LOG_STR_ARG(model_to_string(this->model_)));
|
|
return;
|
|
}
|
|
ESP_LOGV(TAG, "Calculated DAC value: %" PRIu16, val);
|
|
i2c::ErrorCode err = this->write_register(OUTPUT_REGISTER + (2 * channel), (uint8_t *) &val, 2);
|
|
if (err != i2c::ERROR_OK) {
|
|
ESP_LOGE(TAG, "Error writing to %s, code %d", LOG_STR_ARG(model_to_string(this->model_)), err);
|
|
}
|
|
}
|
|
|
|
} // namespace esphome::gp8403
|