5  * SPDX-License-Identifier: Apache-2.0
30  * 16-bit command register addresses
41  * Devicetree psm-mode property value for "PSM disabled"
46  * ALS integration time setting values.
53 	0x0C, /* 25  - 0b1100 */
54 	0x08, /* 50  - 0b1000 */
55 	0x00, /* 100 - 0b0000 */
56 	0x01, /* 200 - 0b0001 */
57 	0x02, /* 400 - 0b0010 */
58 	0x03, /* 800 - 0b0011 */
85 	enum veml7700_als_it it;  member
126 	switch (data->it) {  in veml7700_sleep_by_integration_time()
151 	if (!is_veml7700_gain_in_range(data->gain) || !is_veml7700_it_in_range(data->it)) {  in veml7700_counts_to_lux()
152 		return -EINVAL;  in veml7700_counts_to_lux()
154 	*lux = counts * veml7700_resolution[data->gain][data->it];  in veml7700_counts_to_lux()
161 	if (!is_veml7700_gain_in_range(data->gain) || !is_veml7700_it_in_range(data->it)) {  in veml7700_lux_to_counts()
162 		return -EINVAL;  in veml7700_lux_to_counts()
164 	*counts = lux / veml7700_resolution[data->gain][data->it];  in veml7700_lux_to_counts()
170 	return val->val1 >= VEML7700_ALS_GAIN_1 && val->val1 <= VEML7700_ALS_GAIN_1_4;  in veml7700_check_gain()
175 	return val->val1 >= VEML7700_ALS_IT_25 && val->val1 <= VEML7700_ALS_IT_800;  in veml7700_check_it()
180 	return (val->val1 >= VEML7700_ALS_PERS_1 && val->val1 <= VEML7700_ALS_PERS_8) ||  in veml7700_check_int_mode()
181 	       val->val1 == VEML7700_INT_DISABLED;  in veml7700_check_int_mode()
186 	if (!is_veml7700_gain_in_range(data->gain) || !is_veml7700_it_in_range(data->it)) {  in veml7700_build_als_conf_param()
187 		return -EINVAL;  in veml7700_build_als_conf_param()
190 	/* Bits 15:13 -> reserved */  in veml7700_build_als_conf_param()
191 	/* Bits 12:11 -> gain selection (ALS_GAIN) */  in veml7700_build_als_conf_param()
192 	param |= data->gain << 11;  in veml7700_build_als_conf_param()
193 	/* Bit 10 -> reserved */  in veml7700_build_als_conf_param()
194 	/* Bits 9:6 -> integration time (ALS_IT) */  in veml7700_build_als_conf_param()
195 	param |= veml7700_it_values[data->it] << 6;  in veml7700_build_als_conf_param()
196 	/* Bits 5:4 -> interrupt persistent protection (ALS_PERS) */  in veml7700_build_als_conf_param()
197 	if (data->int_mode != VEML7700_INT_DISABLED) {  in veml7700_build_als_conf_param()
198 		param |= data->int_mode << 4;  in veml7700_build_als_conf_param()
199 		/* Bit 1 -> interrupt enable (ALS_INT_EN) */  in veml7700_build_als_conf_param()
202 	/* Bits 3:2 -> reserved */  in veml7700_build_als_conf_param()
203 	/* Bit 0 -> shut down setting (ALS_SD) */  in veml7700_build_als_conf_param()
204 	if (data->shut_down) {  in veml7700_build_als_conf_param()
214 	return conf->psm;  in veml7700_build_psm_param()
219 	const struct veml7700_config *conf = dev->config;  in veml7700_write()
225 	return i2c_write_dt(&conf->bus, send_buf, ARRAY_SIZE(send_buf));  in veml7700_write()
230 	const struct veml7700_config *conf = dev->config;  in veml7700_read()
233 	int ret = i2c_write_read_dt(&conf->bus, &cmd, sizeof(cmd), &recv_buf, ARRAY_SIZE(recv_buf));  in veml7700_read()
245 	const struct veml7700_data *data = dev->data;  in veml7700_write_als_conf()
253 	LOG_DBG("Writing ALS configuration: 0x%04x", param);  in veml7700_write_als_conf()
259 	const struct veml7700_config *conf = dev->config;  in veml7700_write_psm()
269 	const struct veml7700_data *data = dev->data;  in veml7700_write_thresh_low()
271 	LOG_DBG("Writing low threshold counts: %d", data->thresh_low);  in veml7700_write_thresh_low()
272 	return veml7700_write(dev, VEML7700_CMDCODE_ALS_WL, data->thresh_low);  in veml7700_write_thresh_low()
277 	const struct veml7700_data *data = dev->data;  in veml7700_write_thresh_high()
279 	LOG_DBG("Writing high threshold counts: %d", data->thresh_high);  in veml7700_write_thresh_high()
280 	return veml7700_write(dev, VEML7700_CMDCODE_ALS_WH, data->thresh_high);  in veml7700_write_thresh_high()
285 	struct veml7700_data *data = dev->data;  in veml7700_set_shutdown_flag()
289 	prev_sd = data->shut_down;  in veml7700_set_shutdown_flag()
290 	data->shut_down = new_val;  in veml7700_set_shutdown_flag()
294 		data->shut_down = prev_sd;  in veml7700_set_shutdown_flag()
301 	struct veml7700_data *data = dev->data;  in veml7700_fetch_als()
310 	data->als_counts = counts;  in veml7700_fetch_als()
311 	ret = veml7700_counts_to_lux(data, counts, &data->als_lux);  in veml7700_fetch_als()
316 	LOG_DBG("Read ALS measurement: counts=%d, lux=%d", data->als_counts, data->als_lux);  in veml7700_fetch_als()
323 	struct veml7700_data *data = dev->data;  in veml7700_fetch_white()
332 	data->white_counts = counts;  in veml7700_fetch_white()
333 	LOG_DBG("Read White Light measurement: counts=%d", data->white_counts);  in veml7700_fetch_white()
340 	struct veml7700_data *data = dev->data;  in veml7700_fetch_int_flags()
349 	data->int_flags = int_flags & VEML7700_ALS_INT_MASK;  in veml7700_fetch_int_flags()
350 	LOG_DBG("Read int state: 0x%02x", data->int_flags);  in veml7700_fetch_int_flags()
359 		return -ENOTSUP;  in veml7700_attr_set()
362 	struct veml7700_data *data = dev->data;  in veml7700_attr_set()
366 		ret = veml7700_lux_to_counts(data, val->val1, &data->thresh_low);  in veml7700_attr_set()
372 		ret = veml7700_lux_to_counts(data, val->val1, &data->thresh_high);  in veml7700_attr_set()
379 			data->gain = (enum veml7700_als_gain)val->val1;  in veml7700_attr_set()
382 			return -EINVAL;  in veml7700_attr_set()
386 			data->it = (enum veml7700_als_it)val->val1;  in veml7700_attr_set()
389 			return -EINVAL;  in veml7700_attr_set()
393 			data->int_mode = (enum veml7700_int_mode)val->val1;  in veml7700_attr_set()
396 			return -EINVAL;  in veml7700_attr_set()
399 		return -ENOTSUP;  in veml7700_attr_set()
407 		return -ENOTSUP;  in veml7700_attr_get()
410 	struct veml7700_data *data = dev->data;  in veml7700_attr_get()
413 		val->val1 = data->thresh_low;  in veml7700_attr_get()
415 		val->val1 = data->thresh_high;  in veml7700_attr_get()
417 		val->val1 = data->gain;  in veml7700_attr_get()
419 		val->val1 = data->it;  in veml7700_attr_get()
421 		val->val1 = data->int_mode;  in veml7700_attr_get()
423 		return -ENOTSUP;  in veml7700_attr_get()
426 	val->val2 = 0;  in veml7700_attr_get()
433 	struct veml7700_data *data = dev->data;  in veml7700_perform_single_measurement()
442 	/* Wait for sensor to finish it's startup sequence */  in veml7700_perform_single_measurement()
453 	const struct veml7700_config *conf = dev->config;  in veml7700_sample_fetch()
459 	    conf->psm == VEML7700_PSM_DISABLED) {  in veml7700_sample_fetch()
469 		data = dev->data;  in veml7700_sample_fetch()
470 		if (data->int_mode != VEML7700_INT_DISABLED) {  in veml7700_sample_fetch()
473 			return -ENOTSUP;  in veml7700_sample_fetch()
478 		data = dev->data;  in veml7700_sample_fetch()
479 		if (data->int_mode != VEML7700_INT_DISABLED) {  in veml7700_sample_fetch()
491 		return -ENOTSUP;  in veml7700_sample_fetch()
498 	struct veml7700_data *data = dev->data;  in veml7700_channel_get()
501 		val->val1 = data->als_lux;  in veml7700_channel_get()
503 		val->val1 = data->als_counts;  in veml7700_channel_get()
505 		val->val1 = data->white_counts;  in veml7700_channel_get()
507 		val->val1 = data->int_flags;  in veml7700_channel_get()
509 		return -ENOTSUP;  in veml7700_channel_get()
512 	val->val2 = 0;  in veml7700_channel_get()
521 	const struct veml7700_config *conf = dev->config;  in veml7700_pm_action()
523 	if (conf->psm != VEML7700_PSM_DISABLED) {  in veml7700_pm_action()
532 			return -ENOTSUP;  in veml7700_pm_action()
543 	const struct veml7700_config *conf = dev->config;  in veml7700_init()
544 	struct veml7700_data *data = dev->data;  in veml7700_init()
547 	if (!i2c_is_ready_dt(&conf->bus)) {  in veml7700_init()
549 		return -ENODEV;  in veml7700_init()
559 	data->thresh_low = 0;  in veml7700_init()
560 	data->thresh_high = 0xFFFF;  in veml7700_init()
561 	data->gain = VEML7700_ALS_GAIN_1_4;  in veml7700_init()
562 	data->it = VEML7700_ALS_IT_100;  in veml7700_init()
563 	data->int_mode = VEML7700_INT_DISABLED;  in veml7700_init()
564 	data->als_counts = 0;  in veml7700_init()
565 	data->als_lux = 0;  in veml7700_init()
566 	data->white_counts = 0;  in veml7700_init()
567 	data->shut_down = (conf->psm != VEML7700_PSM_DISABLED) ? 0 : 1;  in veml7700_init()