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apds9253: Add gain set attribute

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Allow to set attribute of the gain of the apds9253. The gain
is applied to all the channels.

Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Margherita <margherita.milani@amarulasolutions.com>
This commit is contained in:
Michael Trimarchi 2024-12-13 10:59:51 +01:00 committed by Carles Cufí
parent 1d543dead8
commit 4e296ab7c9
2 changed files with 50 additions and 0 deletions
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49
drivers/sensor/apds9253/apds9253.c
View File

@ -121,9 +121,55 @@ static int apds9253_channel_get(const struct device *dev, enum sensor_channel ch
return 0;
}
static int apds9253_attr_set_gain(const struct device *dev, uint8_t gain)
{
const struct apds9253_config *config = dev->config;
struct apds9253_data *drv_data = dev->data;
uint8_t value;
if (drv_data->gain == gain) {
return 0;
}
static uint8_t value_map[] = {
APDS9253_LS_GAIN_RANGE_1, APDS9253_LS_GAIN_RANGE_3, APDS9253_LS_GAIN_RANGE_6,
APDS9253_LS_GAIN_RANGE_9, APDS9253_LS_GAIN_RANGE_18,
};
if (gain < APDS9253_LS_GAIN_RANGE_1 || gain > APDS9253_LS_GAIN_RANGE_18) {
return -EINVAL;
}
value = value_map[gain];
if (i2c_reg_update_byte_dt(&config->i2c, APDS9253_LS_GAIN_REG, APDS9253_LS_GAIN_MASK,
(value & APDS9253_LS_GAIN_MASK))) {
LOG_ERR("Not able to set light, sensor gain is not set");
return -EIO;
}
drv_data->gain = gain;
return 0;
}
static int apds9253_attr_set(const struct device *dev, enum sensor_channel chan,
enum sensor_attribute attr, const struct sensor_value *val)
{
switch (attr) {
case SENSOR_ATTR_GAIN:
return apds9253_attr_set_gain(dev, val->val1);
default:
LOG_DBG("Sensor attribute not supported.");
return -ENOTSUP;
}
return 0;
}
static int apds9253_sensor_setup(const struct device *dev)
{
const struct apds9253_config *config = dev->config;
struct apds9253_data *drv_data = dev->data;
uint8_t chip_id;
if (i2c_reg_read_byte_dt(&config->i2c, APDS9253_PART_ID, &chip_id)) {
@ -162,6 +208,8 @@ static int apds9253_sensor_setup(const struct device *dev)
return -EIO;
}
drv_data->gain = config->ls_gain;
return 0;
}
@ -229,6 +277,7 @@ static int apds9253_init(const struct device *dev)
static DEVICE_API(sensor, apds9253_driver_api) = {
.sample_fetch = &apds9253_sample_fetch,
.channel_get = &apds9253_channel_get,
.attr_set = &apds9253_attr_set,
};
#define APDS9253_INIT(n) \

1
drivers/sensor/apds9253/apds9253.h
View File

@ -100,6 +100,7 @@ struct apds9253_data {
const struct device *dev;
uint32_t sample_crgb[4];
uint8_t pdata;
uint8_t gain;
struct k_sem data_sem;
};