4  * SPDX-License-Identifier: Apache-2.0
10 #include <zephyr/drivers/i2c.h>
35 	const struct sgp40_config *cfg = dev->config;  in sgp40_write_command()
40 	return i2c_write_dt(&cfg->bus, tx_buf, sizeof(tx_buf));  in sgp40_write_command()
45 	const struct sgp40_config *cfg = dev->config;  in sgp40_start_measurement()
46 	struct sgp40_data *data = dev->data;  in sgp40_start_measurement()
50 	sys_put_be24(sys_get_be24(data->rh_param), &tx_buf[2]);  in sgp40_start_measurement()
51 	sys_put_be24(sys_get_be24(data->t_param), &tx_buf[5]);  in sgp40_start_measurement()
53 	return i2c_write_dt(&cfg->bus, tx_buf, sizeof(tx_buf));  in sgp40_start_measurement()
61 	struct sgp40_data *data = dev->data;  in sgp40_attr_set()
65 	 * in section "I2C commands"  in sgp40_attr_set()
74 		tmp = (int16_t)CLAMP(val->val1, SGP40_COMP_MIN_T, SGP40_COMP_MAX_T);  in sgp40_attr_set()
75 		/* adding +87 to avoid most rounding errors through truncation */  in sgp40_attr_set()
77 		sys_put_be16(t_ticks, data->t_param);  in sgp40_attr_set()
78 		data->t_param[2] = sgp40_compute_crc(t_ticks);  in sgp40_attr_set()
86 		tmp = (uint8_t)CLAMP(val->val1, SGP40_COMP_MIN_RH, SGP40_COMP_MAX_RH);  in sgp40_attr_set()
87 		/* adding +50 to eliminate rounding errors through truncation */  in sgp40_attr_set()
89 		sys_put_be16(rh_ticks, data->rh_param);  in sgp40_attr_set()
90 		data->rh_param[2] = sgp40_compute_crc(rh_ticks);  in sgp40_attr_set()
94 		return -ENOTSUP;  in sgp40_attr_set()
101 	const struct sgp40_config *cfg = dev->config;  in sgp40_selftest()
114 	rc = i2c_read_dt(&cfg->bus, rx_buf, sizeof(rx_buf));  in sgp40_selftest()
123 		return -EIO;  in sgp40_selftest()
128 		return -EIO;  in sgp40_selftest()
137 	struct sgp40_data *data = dev->data;  in sgp40_sample_fetch()
138 	const struct sgp40_config *cfg = dev->config;  in sgp40_sample_fetch()
144 		return -ENOTSUP;  in sgp40_sample_fetch()
155 	rc = i2c_read_dt(&cfg->bus, rx_buf, sizeof(rx_buf));  in sgp40_sample_fetch()
164 		return -EIO;  in sgp40_sample_fetch()
167 	data->raw_sample = raw_sample;  in sgp40_sample_fetch()
176 	const struct sgp40_data *data = dev->data;  in sgp40_channel_get()
179 		return -ENOTSUP;  in sgp40_channel_get()
182 	val->val1 = data->raw_sample;  in sgp40_channel_get()
183 	val->val2 = 0;  in sgp40_channel_get()
204 		return -ENOTSUP;  in sgp40_pm_action()
213 	const struct sgp40_config *cfg = dev->config;  in sgp40_init()
216 	if (!device_is_ready(cfg->bus.bus)) {  in sgp40_init()
218 		return -ENODEV;  in sgp40_init()
221 	if (cfg->selftest) {  in sgp40_init()