4  * SPDX-License-Identifier: Apache-2.0
18 	const struct tsl2591_config *config = dev->config;  in tsl2591_reg_read()
21 	return i2c_write_read_dt(&config->i2c, &cmd, 1U, buf, size);  in tsl2591_reg_read()
26 	const struct tsl2591_config *config = dev->config;  in tsl2591_reg_write()
29 	return i2c_write_dt(&config->i2c, cmd, 2U);  in tsl2591_reg_write()
52 	struct tsl2591_data *data = dev->data;  in tsl2591_sample_fetch()
65 	/* Check if ALS has completed an integration cycle since AEN asserted.  in tsl2591_sample_fetch()
66 	 * If not, sleep for the duration of an integration cycle to ensure valid reading.  in tsl2591_sample_fetch()
69 		k_msleep((data->atime / 100) * TSL2591_MAX_TIME_STEP);  in tsl2591_sample_fetch()
81 		LOG_ERR("Failed to re-enable ALS");  in tsl2591_sample_fetch()
94 		data->vis_count = sys_get_le16(als_data);  in tsl2591_sample_fetch()
95 		data->ir_count = sys_get_le16(als_data + 2);  in tsl2591_sample_fetch()
104 		data->vis_count = sys_get_le16(als_data);  in tsl2591_sample_fetch()
113 		data->ir_count = sys_get_le16(als_data);  in tsl2591_sample_fetch()
117 		return -ENOTSUP;  in tsl2591_sample_fetch()
121 	uint16_t max_count = data->atime == 100 ? TSL2591_MAX_ADC_100 : TSL2591_MAX_ADC;  in tsl2591_sample_fetch()
123 			     (data->vis_count >= max_count);  in tsl2591_sample_fetch()
125 			    (data->ir_count >= max_count);  in tsl2591_sample_fetch()
128 		return -EOVERFLOW;  in tsl2591_sample_fetch()
138 	const struct tsl2591_data *data = dev->data;  in tsl2591_channel_get()
139 	int64_t cpl = (int64_t)data->atime * (int64_t)data->again;  in tsl2591_channel_get()
154 		if (data->vis_count > 0) {  in tsl2591_channel_get()
157 				(data->vis_count - data->ir_count) *  in tsl2591_channel_get()
158 				(1000000 - (((int64_t)data->ir_count * 1000000) / data->vis_count));  in tsl2591_channel_get()
164 		strength = data->vis_count;  in tsl2591_channel_get()
167 		strength = data->ir_count;  in tsl2591_channel_get()
171 		return -ENOTSUP;  in tsl2591_channel_get()
175 	val->val1 = strength / cpl;  in tsl2591_channel_get()
176 	val->val2 = ((strength % cpl) * 1000000) / cpl;  in tsl2591_channel_get()
185 	const struct tsl2591_data *data = dev->data;  in tsl2591_set_threshold()
186 	const struct tsl2591_config *config = dev->config;  in tsl2591_set_threshold()
195 	cpl = data->atime * data->again;  in tsl2591_set_threshold()
196 	raw = ((val->val1 * cpl) / TSL2591_LUX_DF) +  in tsl2591_set_threshold()
197 	      ((val->val2 * cpl) / (1000000U * TSL2591_LUX_DF));  in tsl2591_set_threshold()
201 		return -EOVERFLOW;  in tsl2591_set_threshold()
210 	ret = i2c_write_dt(&config->i2c, cmd, 3U);  in tsl2591_set_threshold()
274 		return -EINVAL;  in tsl2591_set_persist()
288 	struct tsl2591_data *data = dev->data;  in tsl2591_set_gain()
294 		data->again = TSL2591_GAIN_SCALE_LOW;  in tsl2591_set_gain()
298 		data->again = TSL2591_GAIN_SCALE_MED;  in tsl2591_set_gain()
302 		data->again = TSL2591_GAIN_SCALE_HIGH;  in tsl2591_set_gain()
306 		data->again = TSL2591_GAIN_SCALE_MAX;  in tsl2591_set_gain()
311 		return -EINVAL;  in tsl2591_set_gain()
324 	struct tsl2591_data *data = dev->data;  in tsl2591_set_integration()
348 		LOG_ERR("Invalid integration time");  in tsl2591_set_integration()
349 		return -EINVAL;  in tsl2591_set_integration()
354 		LOG_ERR("Failed to set integration time");  in tsl2591_set_integration()
358 	data->atime = integration_time;  in tsl2591_set_integration()
366 	const struct tsl2591_data *data = dev->data;  in tsl2591_attr_set()
381 			ret = -ENOTSUP;  in tsl2591_attr_set()
389 		ret = tsl2591_set_gain(dev, (enum sensor_gain_tsl2591)val->val1);  in tsl2591_attr_set()
392 		ret = tsl2591_set_integration(dev, val->val1);  in tsl2591_attr_set()
397 		ret = tsl2591_set_persist(dev, val->val1);  in tsl2591_attr_set()
402 		ret = -EINVAL;  in tsl2591_attr_set()
407 	if (data->powered_on) {  in tsl2591_attr_set()
417 	struct tsl2591_data *data = dev->data;  in tsl2591_setup()
435 		return -ENOTSUP;  in tsl2591_setup()
439 	data->again = TSL2591_GAIN_SCALE_LOW;  in tsl2591_setup()
440 	data->atime = 100U;  in tsl2591_setup()
448 	data->powered_on = true;  in tsl2591_setup()
455 	const struct tsl2591_config *config = dev->config;  in tsl2591_init()
458 	if (!i2c_is_ready_dt(&config->i2c)) {  in tsl2591_init()
459 		LOG_ERR("I2C dev %s not ready", config->i2c.bus->name);  in tsl2591_init()
460 		return -ENODEV;  in tsl2591_init()
491 	struct tsl2591_data *data = dev->data;  in tsl2591_pm_action()
503 		data->powered_on = true;  in tsl2591_pm_action()
513 		data->powered_on = false;  in tsl2591_pm_action()
517 		return -ENOTSUP;  in tsl2591_pm_action()