4  * SPDX-License-Identifier: Apache-2.0
12 #include <zephyr/dt-bindings/adc/ads1x4s0x_adc.h>
95 	FIELD_GET(GENMASK(pos + length - 1, pos), value)
97 	target &= ~GENMASK(pos + length - 1, pos);                                                 \
98 	target |= FIELD_PREP(GENMASK(pos + length - 1, pos), value)
366  * - AIN0 as positive input
367  * - AIN1 as negative input
373  * - disable reference monitor
374  * - enable positive reference buffer
375  * - disable negative reference buffer
376  * - use internal reference
377  * - enable internal voltage reference
386  * - disable global chop
387  * - use internal oscillator
388  * - single shot conversion mode
389  * - low latency filter
390  * - 20 samples per second
399  * - delay of 14*t_mod
400  * - disable gain
401  * - gain 1
408  * - disable PGA output rail flag
409  * - low-side power switch
410  * - IDAC off
417  * - disconnect IDAC1
418  * - disconnect IDAC2
457 					 uint32_t pins)  in ads1x4s0x_data_ready_handler()  argument
460 	ARG_UNUSED(pins);  in ads1x4s0x_data_ready_handler()
465 	k_sem_give(&data->data_ready_signal);  in ads1x4s0x_data_ready_handler()
471 	const struct ads1x4s0x_config *config = dev->config;  in ads1x4s0x_read_register()
495 	int result = spi_transceive_dt(&config->bus, &tx, &rx);  in ads1x4s0x_read_register()
498 		LOG_ERR("%s: spi_transceive failed with error %i", dev->name, result);  in ads1x4s0x_read_register()
503 	LOG_DBG("%s: read from register 0x%02X value 0x%02X", dev->name, register_address, *value);  in ads1x4s0x_read_register()
511 	const struct ads1x4s0x_config *config = dev->config;  in ads1x4s0x_write_register()
527 	LOG_DBG("%s: writing to register 0x%02X value 0x%02X", dev->name, register_address, value);  in ads1x4s0x_write_register()
528 	int result = spi_write_dt(&config->bus, &tx);  in ads1x4s0x_write_register()
531 		LOG_ERR("%s: spi_write failed with error %i", dev->name, result);  in ads1x4s0x_write_register()
542 	const struct ads1x4s0x_config *config = dev->config;  in ads1x4s0x_write_multiple_registers()
560 		LOG_WRN("%s: ignoring the command to write 0 registers", dev->name);  in ads1x4s0x_write_multiple_registers()
561 		return -EINVAL;  in ads1x4s0x_write_multiple_registers()
565 	buffer_tx[1] = count - 1;  in ads1x4s0x_write_multiple_registers()
572 		__ASSERT(register_addresses[i - 1] + 1 == register_addresses[i],  in ads1x4s0x_write_multiple_registers()
576 	int result = spi_write_dt(&config->bus, &tx);  in ads1x4s0x_write_multiple_registers()
579 		LOG_ERR("%s: spi_write failed with error %i", dev->name, result);  in ads1x4s0x_write_multiple_registers()
588 	const struct ads1x4s0x_config *config = dev->config;  in ads1x4s0x_send_command()
601 	LOG_DBG("%s: sending command 0x%02X", dev->name, command);  in ads1x4s0x_send_command()
602 	int result = spi_write_dt(&config->bus, &tx);  in ads1x4s0x_send_command()
605 		LOG_ERR("%s: spi_write failed with error %i", dev->name, result);  in ads1x4s0x_send_command()
615 	const struct ads1x4s0x_config *config = dev->config;  in ads1x4s0x_channel_setup()
623 	uint8_t vbias = 0;  in ads1x4s0x_channel_setup()  local
628 	uint16_t acquisition_time_value = ADC_ACQ_TIME_VALUE(channel_cfg->acquisition_time);  in ads1x4s0x_channel_setup()
629 	uint16_t acquisition_time_unit = ADC_ACQ_TIME_UNIT(channel_cfg->acquisition_time);  in ads1x4s0x_channel_setup()
638 	if (channel_cfg->channel_id != 0) {  in ads1x4s0x_channel_setup()
639 		LOG_ERR("%s: only one channel is supported", dev->name);  in ads1x4s0x_channel_setup()
640 		return -EINVAL;  in ads1x4s0x_channel_setup()
648 	if (channel_cfg->acquisition_time != ADC_ACQ_TIME_DEFAULT &&  in ads1x4s0x_channel_setup()
650 		LOG_ERR("%s: invalid acquisition time %i", dev->name,  in ads1x4s0x_channel_setup()
651 			channel_cfg->acquisition_time);  in ads1x4s0x_channel_setup()
652 		return -EINVAL;  in ads1x4s0x_channel_setup()
655 	if (channel_cfg->acquisition_time == ADC_ACQ_TIME_DEFAULT) {  in ads1x4s0x_channel_setup()
661 	switch (channel_cfg->reference) {  in ads1x4s0x_channel_setup()
687 		LOG_ERR("%s: reference %i is not supported", dev->name, channel_cfg->reference);  in ads1x4s0x_channel_setup()
688 		return -EINVAL;  in ads1x4s0x_channel_setup()
691 	if (channel_cfg->differential) {  in ads1x4s0x_channel_setup()
692 		LOG_DBG("%s: configuring channel for a differential measurement from the pins (p, "  in ads1x4s0x_channel_setup()
694 			dev->name, channel_cfg->input_positive, channel_cfg->input_negative);  in ads1x4s0x_channel_setup()
695 		if (channel_cfg->input_positive >= config->channels &&  in ads1x4s0x_channel_setup()
696 		    channel_cfg->input_positive != ADS1X4S0X_INPUT_SELECTION_AINCOM) {  in ads1x4s0x_channel_setup()
697 			LOG_ERR("%s: positive channel input %i is invalid", dev->name,  in ads1x4s0x_channel_setup()
698 				channel_cfg->input_positive);  in ads1x4s0x_channel_setup()
699 			return -EINVAL;  in ads1x4s0x_channel_setup()
702 		if (channel_cfg->input_negative >= config->channels &&  in ads1x4s0x_channel_setup()
703 		    channel_cfg->input_negative != ADS1X4S0X_INPUT_SELECTION_AINCOM) {  in ads1x4s0x_channel_setup()
704 			LOG_ERR("%s: negative channel input %i is invalid", dev->name,  in ads1x4s0x_channel_setup()
705 				channel_cfg->input_negative);  in ads1x4s0x_channel_setup()
706 			return -EINVAL;  in ads1x4s0x_channel_setup()
709 		if (channel_cfg->input_positive == channel_cfg->input_negative) {  in ads1x4s0x_channel_setup()
711 				dev->name);  in ads1x4s0x_channel_setup()
712 			return -EINVAL;  in ads1x4s0x_channel_setup()
715 		ADS1X4S0X_REGISTER_INPMUX_MUXP_SET(input_mux, channel_cfg->input_positive);  in ads1x4s0x_channel_setup()
716 		ADS1X4S0X_REGISTER_INPMUX_MUXN_SET(input_mux, channel_cfg->input_negative);  in ads1x4s0x_channel_setup()
717 		pin_selections[0] = channel_cfg->input_positive;  in ads1x4s0x_channel_setup()
718 		pin_selections[1] = channel_cfg->input_negative;  in ads1x4s0x_channel_setup()
721 			dev->name, channel_cfg->input_positive);  in ads1x4s0x_channel_setup()
722 		if (channel_cfg->input_positive >= config->channels &&  in ads1x4s0x_channel_setup()
723 		    channel_cfg->input_positive != ADS1X4S0X_INPUT_SELECTION_AINCOM) {  in ads1x4s0x_channel_setup()
724 			LOG_ERR("%s: channel input %i is invalid", dev->name,  in ads1x4s0x_channel_setup()
725 				channel_cfg->input_positive);  in ads1x4s0x_channel_setup()
726 			return -EINVAL;  in ads1x4s0x_channel_setup()
729 		ADS1X4S0X_REGISTER_INPMUX_MUXP_SET(input_mux, channel_cfg->input_positive);  in ads1x4s0x_channel_setup()
731 		pin_selections[0] = channel_cfg->input_positive;  in ads1x4s0x_channel_setup()
735 	switch (channel_cfg->gain) {  in ads1x4s0x_channel_setup()
762 		LOG_ERR("%s: gain value %i not supported", dev->name, channel_cfg->gain);  in ads1x4s0x_channel_setup()
763 		return -EINVAL;  in ads1x4s0x_channel_setup()
766 	if (channel_cfg->gain != ADC_GAIN_1) {  in ads1x4s0x_channel_setup()
771 	switch (config->idac_current) {  in ads1x4s0x_channel_setup()
803 		LOG_ERR("%s: IDAC magnitude %i not supported", dev->name, config->idac_current);  in ads1x4s0x_channel_setup()
804 		return -EINVAL;  in ads1x4s0x_channel_setup()
807 	if (channel_cfg->current_source_pin_set) {  in ads1x4s0x_channel_setup()
808 		LOG_DBG("%s: current source pin set to %i and %i", dev->name,  in ads1x4s0x_channel_setup()
809 			channel_cfg->current_source_pin[0], channel_cfg->current_source_pin[1]);  in ads1x4s0x_channel_setup()
810 		if (channel_cfg->current_source_pin[0] > 0b1111) {  in ads1x4s0x_channel_setup()
811 			LOG_ERR("%s: invalid selection %i for I1MUX", dev->name,  in ads1x4s0x_channel_setup()
812 				channel_cfg->current_source_pin[0]);  in ads1x4s0x_channel_setup()
813 			return -EINVAL;  in ads1x4s0x_channel_setup()
816 		if (channel_cfg->current_source_pin[1] > 0b1111) {  in ads1x4s0x_channel_setup()
817 			LOG_ERR("%s: invalid selection %i for I2MUX", dev->name,  in ads1x4s0x_channel_setup()
818 				channel_cfg->current_source_pin[1]);  in ads1x4s0x_channel_setup()
819 			return -EINVAL;  in ads1x4s0x_channel_setup()
822 		ADS1X4S0X_REGISTER_IDACMUX_I1MUX_SET(idac_mux, channel_cfg->current_source_pin[0]);  in ads1x4s0x_channel_setup()
823 		ADS1X4S0X_REGISTER_IDACMUX_I2MUX_SET(idac_mux, channel_cfg->current_source_pin[1]);  in ads1x4s0x_channel_setup()
824 		pin_selections[2] = channel_cfg->current_source_pin[0];  in ads1x4s0x_channel_setup()
825 		pin_selections[3] = channel_cfg->current_source_pin[1];  in ads1x4s0x_channel_setup()
828 		LOG_DBG("%s: current source pins not set", dev->name);  in ads1x4s0x_channel_setup()
843 				LOG_ERR("%s: pins for inputs and current sources must be different",  in ads1x4s0x_channel_setup()
844 					dev->name);  in ads1x4s0x_channel_setup()
845 				return -EINVAL;  in ads1x4s0x_channel_setup()
850 	ADS1X4S0X_REGISTER_VBIAS_VB_LEVEL_SET(vbias, config->vbias_level);  in ads1x4s0x_channel_setup()
852 	if ((channel_cfg->vbias_pins &  in ads1x4s0x_channel_setup()
854 		LOG_ERR("%s: invalid VBIAS pin selection 0x%08X", dev->name,  in ads1x4s0x_channel_setup()
855 			channel_cfg->vbias_pins);  in ads1x4s0x_channel_setup()
856 		return -EINVAL;  in ads1x4s0x_channel_setup()
859 	vbias |= channel_cfg->vbias_pins;  in ads1x4s0x_channel_setup()
875 	values[6] = vbias;  in ads1x4s0x_channel_setup()
882 		LOG_ERR("%s: unable to configure registers", dev->name);  in ads1x4s0x_channel_setup()
892 	const struct ads1x4s0x_config *config = dev->config;  in ads1x4s0x_validate_buffer_size()
895 	needed = (config->resolution > 16) ? sizeof(int32_t) : sizeof(int16_t);  in ads1x4s0x_validate_buffer_size()
897 	if (sequence->options) {  in ads1x4s0x_validate_buffer_size()
898 		needed *= (1 + sequence->options->extra_samplings);  in ads1x4s0x_validate_buffer_size()
901 	if (sequence->buffer_size < needed) {  in ads1x4s0x_validate_buffer_size()
902 		return -ENOMEM;  in ads1x4s0x_validate_buffer_size()
911 	const struct ads1x4s0x_config *config = dev->config;  in ads1x4s0x_validate_sequence()
913 	if (sequence->resolution != config->resolution) {  in ads1x4s0x_validate_sequence()
914 		LOG_ERR("%s: invalid resolution", dev->name);  in ads1x4s0x_validate_sequence()
915 		return -EINVAL;  in ads1x4s0x_validate_sequence()
918 	if (sequence->channels != BIT(0)) {  in ads1x4s0x_validate_sequence()
919 		LOG_ERR("%s: invalid channel", dev->name);  in ads1x4s0x_validate_sequence()
920 		return -EINVAL;  in ads1x4s0x_validate_sequence()
923 	if (sequence->oversampling) {  in ads1x4s0x_validate_sequence()
924 		LOG_ERR("%s: oversampling is not supported", dev->name);  in ads1x4s0x_validate_sequence()
925 		return -EINVAL;  in ads1x4s0x_validate_sequence()
936 		data->buffer = data->buffer_ptr;  in adc_context_update_buffer_pointer()
944 	data->buffer_ptr = data->buffer;  in adc_context_start_sampling()
945 	k_sem_give(&data->acquire_signal);  in adc_context_start_sampling()
952 	struct ads1x4s0x_data *data = dev->data;  in ads1x4s0x_adc_start_read()
957 		LOG_ERR("%s: sequence validation failed", dev->name);  in ads1x4s0x_adc_start_read()
961 	data->buffer = sequence->buffer;  in ads1x4s0x_adc_start_read()
963 	adc_context_start_read(&data->ctx, sequence);  in ads1x4s0x_adc_start_read()
966 		result = adc_context_wait_for_completion(&data->ctx);  in ads1x4s0x_adc_start_read()
974 	const struct ads1x4s0x_config *config = dev->config;  in ads1x4s0x_send_start_read()
977 	if (config->gpio_start_sync.port == 0) {  in ads1x4s0x_send_start_read()
980 			LOG_ERR("%s: unable to send START/SYNC command", dev->name);  in ads1x4s0x_send_start_read()
984 		result = gpio_pin_set_dt(&config->gpio_start_sync, 1);  in ads1x4s0x_send_start_read()
987 			LOG_ERR("%s: unable to start ADC operation", dev->name);  in ads1x4s0x_send_start_read()
994 		result = gpio_pin_set_dt(&config->gpio_start_sync, 0);  in ads1x4s0x_send_start_read()
997 			LOG_ERR("%s: unable to start ADC operation", dev->name);  in ads1x4s0x_send_start_read()
1007 	struct ads1x4s0x_data *data = dev->data;  in ads1x4s0x_wait_data_ready()
1009 	return k_sem_take(&data->data_ready_signal, ADC_CONTEXT_WAIT_FOR_COMPLETION_TIMEOUT);  in ads1x4s0x_wait_data_ready()
1015 	const struct ads1x4s0x_config *config = dev->config;  in ads1x4s0x_read_sample_16()
1037 	int result = spi_transceive_dt(&config->bus, &tx, &rx);  in ads1x4s0x_read_sample_16()
1040 		LOG_ERR("%s: spi_transceive failed with error %i", dev->name, result);  in ads1x4s0x_read_sample_16()
1045 	LOG_DBG("%s: read ADC sample %i", dev->name, *buffer);  in ads1x4s0x_read_sample_16()
1054 	const struct ads1x4s0x_config *config = dev->config;  in ads1x4s0x_read_sample_24()
1076 	int result = spi_transceive_dt(&config->bus, &tx, &rx);  in ads1x4s0x_read_sample_24()
1079 		LOG_ERR("%s: spi_transceive failed with error %i", dev->name, result);  in ads1x4s0x_read_sample_24()
1085 	LOG_DBG("%s: read ADC sample 0x%02X%02X%02X", dev->name, *(buffer_rx + 1), *(buffer_rx + 2),  in ads1x4s0x_read_sample_24()
1095 	const struct ads1x4s0x_config *config = dev->config;  in ads1x4s0x_adc_perform_read()
1096 	struct ads1x4s0x_data *data = dev->data;  in ads1x4s0x_adc_perform_read()
1097 	void *buffer = data->buffer;  in ads1x4s0x_adc_perform_read()
1099 	k_sem_take(&data->acquire_signal, K_FOREVER);  in ads1x4s0x_adc_perform_read()
1100 	k_sem_reset(&data->data_ready_signal);  in ads1x4s0x_adc_perform_read()
1104 		LOG_ERR("%s: unable to start ADC conversion", dev->name);  in ads1x4s0x_adc_perform_read()
1105 		adc_context_complete(&data->ctx, result);  in ads1x4s0x_adc_perform_read()
1111 		LOG_ERR("%s: waiting for data to be ready failed", dev->name);  in ads1x4s0x_adc_perform_read()
1112 		adc_context_complete(&data->ctx, result);  in ads1x4s0x_adc_perform_read()
1117 	if (config->resolution == 24) {  in ads1x4s0x_adc_perform_read()
1118 		result = ads1x4s0x_read_sample_24(dev, (int32_t *)data->buffer);  in ads1x4s0x_adc_perform_read()
1122 			adc_context_on_sampling_done(&data->ctx, dev);  in ads1x4s0x_adc_perform_read()
1130 	if (config->resolution == 16) {  in ads1x4s0x_adc_perform_read()
1131 		result = ads1x4s0x_read_sample_16(dev, (int16_t *)data->buffer);  in ads1x4s0x_adc_perform_read()
1135 			adc_context_on_sampling_done(&data->ctx, dev);  in ads1x4s0x_adc_perform_read()
1142 	LOG_ERR("%s: reading sample failed", dev->name);  in ads1x4s0x_adc_perform_read()
1143 	adc_context_complete(&data->ctx, result);  in ads1x4s0x_adc_perform_read()
1152 	struct ads1x4s0x_data *data = dev->data;  in ads1x4s0x_adc_read_async()
1154 	adc_context_lock(&data->ctx, true, async);  in ads1x4s0x_adc_read_async()
1156 	adc_context_release(&data->ctx, result);  in ads1x4s0x_adc_read_async()
1164 	struct ads1x4s0x_data *data = dev->data;  in ads1x4s0x_read()
1166 	adc_context_lock(&data->ctx, false, NULL);  in ads1x4s0x_read()
1168 	adc_context_release(&data->ctx, result);  in ads1x4s0x_read()
1177 	struct ads1x4s0x_data *data = dev->data;  in ads1x4s0x_read()
1179 	adc_context_lock(&data->ctx, false, NULL);  in ads1x4s0x_read()
1182 	while (result == 0 && k_sem_take(&data->ctx.sync, K_NO_WAIT) != 0) {  in ads1x4s0x_read()
1186 	adc_context_release(&data->ctx, result);  in ads1x4s0x_read()
1208 	struct ads1x4s0x_data *data = dev->data;  in ads1x4s0x_gpio_write_config()
1214 	ADS1X4S0X_REGISTER_GPIOCON_CON_SET(gpio_con, data->gpio_enabled);  in ads1x4s0x_gpio_write_config()
1215 	ADS1X4S0X_REGISTER_GPIODAT_DAT_SET(gpio_dat, data->gpio_value);  in ads1x4s0x_gpio_write_config()
1216 	ADS1X4S0X_REGISTER_GPIODAT_DIR_SET(gpio_dat, data->gpio_direction);  in ads1x4s0x_gpio_write_config()
1228 	struct ads1x4s0x_data *data = dev->data;  in ads1x4s0x_gpio_write_value()
1231 	ADS1X4S0X_REGISTER_GPIODAT_DAT_SET(gpio_dat, data->gpio_value);  in ads1x4s0x_gpio_write_value()
1232 	ADS1X4S0X_REGISTER_GPIODAT_DIR_SET(gpio_dat, data->gpio_direction);  in ads1x4s0x_gpio_write_value()
1239 	struct ads1x4s0x_data *data = dev->data;  in ads1x4s0x_gpio_set_output()
1243 		LOG_ERR("%s: invalid pin %i", dev->name, pin);  in ads1x4s0x_gpio_set_output()
1244 		return -EINVAL;  in ads1x4s0x_gpio_set_output()
1247 	k_mutex_lock(&data->gpio_lock, K_FOREVER);  in ads1x4s0x_gpio_set_output()
1249 	data->gpio_enabled |= BIT(pin);  in ads1x4s0x_gpio_set_output()
1250 	data->gpio_direction &= ~BIT(pin);  in ads1x4s0x_gpio_set_output()
1253 		data->gpio_value |= BIT(pin);  in ads1x4s0x_gpio_set_output()
1255 		data->gpio_value &= ~BIT(pin);  in ads1x4s0x_gpio_set_output()
1260 	k_mutex_unlock(&data->gpio_lock);  in ads1x4s0x_gpio_set_output()
1267 	struct ads1x4s0x_data *data = dev->data;  in ads1x4s0x_gpio_set_input()
1271 		LOG_ERR("%s: invalid pin %i", dev->name, pin);  in ads1x4s0x_gpio_set_input()
1272 		return -EINVAL;  in ads1x4s0x_gpio_set_input()
1275 	k_mutex_lock(&data->gpio_lock, K_FOREVER);  in ads1x4s0x_gpio_set_input()
1277 	data->gpio_enabled |= BIT(pin);  in ads1x4s0x_gpio_set_input()
1278 	data->gpio_direction |= BIT(pin);  in ads1x4s0x_gpio_set_input()
1279 	data->gpio_value &= ~BIT(pin);  in ads1x4s0x_gpio_set_input()
1283 	k_mutex_unlock(&data->gpio_lock);  in ads1x4s0x_gpio_set_input()
1290 	struct ads1x4s0x_data *data = dev->data;  in ads1x4s0x_gpio_deconfigure()
1294 		LOG_ERR("%s: invalid pin %i", dev->name, pin);  in ads1x4s0x_gpio_deconfigure()
1295 		return -EINVAL;  in ads1x4s0x_gpio_deconfigure()
1298 	k_mutex_lock(&data->gpio_lock, K_FOREVER);  in ads1x4s0x_gpio_deconfigure()
1300 	data->gpio_enabled &= ~BIT(pin);  in ads1x4s0x_gpio_deconfigure()
1301 	data->gpio_direction |= BIT(pin);  in ads1x4s0x_gpio_deconfigure()
1302 	data->gpio_value &= ~BIT(pin);  in ads1x4s0x_gpio_deconfigure()
1306 	k_mutex_unlock(&data->gpio_lock);  in ads1x4s0x_gpio_deconfigure()
1313 	struct ads1x4s0x_data *data = dev->data;  in ads1x4s0x_gpio_set_pin_value()
1317 		LOG_ERR("%s: invalid pin %i", dev->name, pin);  in ads1x4s0x_gpio_set_pin_value()
1318 		return -EINVAL;  in ads1x4s0x_gpio_set_pin_value()
1321 	k_mutex_lock(&data->gpio_lock, K_FOREVER);  in ads1x4s0x_gpio_set_pin_value()
1323 	if ((BIT(pin) & data->gpio_enabled) == 0) {  in ads1x4s0x_gpio_set_pin_value()
1324 		LOG_ERR("%s: gpio pin %i not configured", dev->name, pin);  in ads1x4s0x_gpio_set_pin_value()
1325 		result = -EINVAL;  in ads1x4s0x_gpio_set_pin_value()
1326 	} else if ((BIT(pin) & data->gpio_direction) != 0) {  in ads1x4s0x_gpio_set_pin_value()
1327 		LOG_ERR("%s: gpio pin %i not configured as output", dev->name, pin);  in ads1x4s0x_gpio_set_pin_value()
1328 		result = -EINVAL;  in ads1x4s0x_gpio_set_pin_value()
1330 		data->gpio_value |= BIT(pin);  in ads1x4s0x_gpio_set_pin_value()
1335 	k_mutex_unlock(&data->gpio_lock);  in ads1x4s0x_gpio_set_pin_value()
1342 	struct ads1x4s0x_data *data = dev->data;  in ads1x4s0x_gpio_get_pin_value()
1347 		LOG_ERR("%s: invalid pin %i", dev->name, pin);  in ads1x4s0x_gpio_get_pin_value()
1348 		return -EINVAL;  in ads1x4s0x_gpio_get_pin_value()
1351 	k_mutex_lock(&data->gpio_lock, K_FOREVER);  in ads1x4s0x_gpio_get_pin_value()
1353 	if ((BIT(pin) & data->gpio_enabled) == 0) {  in ads1x4s0x_gpio_get_pin_value()
1354 		LOG_ERR("%s: gpio pin %i not configured", dev->name, pin);  in ads1x4s0x_gpio_get_pin_value()
1355 		result = -EINVAL;  in ads1x4s0x_gpio_get_pin_value()
1356 	} else if ((BIT(pin) & data->gpio_direction) == 0) {  in ads1x4s0x_gpio_get_pin_value()
1357 		LOG_ERR("%s: gpio pin %i not configured as input", dev->name, pin);  in ads1x4s0x_gpio_get_pin_value()
1358 		result = -EINVAL;  in ads1x4s0x_gpio_get_pin_value()
1361 		data->gpio_value = ADS1X4S0X_REGISTER_GPIODAT_DAT_GET(gpio_dat);  in ads1x4s0x_gpio_get_pin_value()
1362 		*value = (BIT(pin) & data->gpio_value) != 0;  in ads1x4s0x_gpio_get_pin_value()
1365 	k_mutex_unlock(&data->gpio_lock);  in ads1x4s0x_gpio_get_pin_value()
1372 	struct ads1x4s0x_data *data = dev->data;  in ads1x4s0x_gpio_port_get_raw()
1376 	k_mutex_lock(&data->gpio_lock, K_FOREVER);  in ads1x4s0x_gpio_port_get_raw()
1379 	data->gpio_value = ADS1X4S0X_REGISTER_GPIODAT_DAT_GET(gpio_dat);  in ads1x4s0x_gpio_port_get_raw()
1380 	*value = data->gpio_value;  in ads1x4s0x_gpio_port_get_raw()
1382 	k_mutex_unlock(&data->gpio_lock);  in ads1x4s0x_gpio_port_get_raw()
1390 	struct ads1x4s0x_data *data = dev->data;  in ads1x4s0x_gpio_port_set_masked_raw()
1393 	k_mutex_lock(&data->gpio_lock, K_FOREVER);  in ads1x4s0x_gpio_port_set_masked_raw()
1395 	data->gpio_value = ((data->gpio_value & ~mask) | (mask & value)) & data->gpio_enabled &  in ads1x4s0x_gpio_port_set_masked_raw()
1396 			   ~data->gpio_direction;  in ads1x4s0x_gpio_port_set_masked_raw()
1399 	k_mutex_unlock(&data->gpio_lock);  in ads1x4s0x_gpio_port_set_masked_raw()
1404 int ads1x4s0x_gpio_port_toggle_bits(const struct device *dev, gpio_port_pins_t pins)  in ads1x4s0x_gpio_port_toggle_bits()  argument
1406 	struct ads1x4s0x_data *data = dev->data;  in ads1x4s0x_gpio_port_toggle_bits()
1409 	k_mutex_lock(&data->gpio_lock, K_FOREVER);  in ads1x4s0x_gpio_port_toggle_bits()
1411 	data->gpio_value = (data->gpio_value ^ pins) & data->gpio_enabled & ~data->gpio_direction;  in ads1x4s0x_gpio_port_toggle_bits()
1414 	k_mutex_unlock(&data->gpio_lock);  in ads1x4s0x_gpio_port_toggle_bits()
1427 	const struct ads1x4s0x_config *config = dev->config;  in ads1x4s0x_init()
1428 	struct ads1x4s0x_data *data = dev->data;  in ads1x4s0x_init()
1430 	adc_context_init(&data->ctx);  in ads1x4s0x_init()
1432 	k_sem_init(&data->data_ready_signal, 0, 1);  in ads1x4s0x_init()
1433 	k_sem_init(&data->acquire_signal, 0, 1);  in ads1x4s0x_init()
1436 	k_mutex_init(&data->gpio_lock);  in ads1x4s0x_init()
1439 	if (!spi_is_ready_dt(&config->bus)) {  in ads1x4s0x_init()
1440 		LOG_ERR("%s: SPI device is not ready", dev->name);  in ads1x4s0x_init()
1441 		return -ENODEV;  in ads1x4s0x_init()
1444 	if (config->gpio_reset.port != NULL) {  in ads1x4s0x_init()
1445 		result = gpio_pin_configure_dt(&config->gpio_reset, GPIO_OUTPUT_ACTIVE);  in ads1x4s0x_init()
1447 			LOG_ERR("%s: failed to initialize GPIO for reset", dev->name);  in ads1x4s0x_init()
1452 	if (config->gpio_start_sync.port != NULL) {  in ads1x4s0x_init()
1453 		result = gpio_pin_configure_dt(&config->gpio_start_sync, GPIO_OUTPUT_INACTIVE);  in ads1x4s0x_init()
1455 			LOG_ERR("%s: failed to initialize GPIO for start/sync", dev->name);  in ads1x4s0x_init()
1460 	result = gpio_pin_configure_dt(&config->gpio_data_ready, GPIO_INPUT);  in ads1x4s0x_init()
1462 		LOG_ERR("%s: failed to initialize GPIO for data ready", dev->name);  in ads1x4s0x_init()
1466 	result = gpio_pin_interrupt_configure_dt(&config->gpio_data_ready, GPIO_INT_EDGE_TO_ACTIVE);  in ads1x4s0x_init()
1468 		LOG_ERR("%s: failed to configure data ready interrupt", dev->name);  in ads1x4s0x_init()
1469 		return -EIO;  in ads1x4s0x_init()
1472 	gpio_init_callback(&data->callback_data_ready, ads1x4s0x_data_ready_handler,  in ads1x4s0x_init()
1473 			   BIT(config->gpio_data_ready.pin));  in ads1x4s0x_init()
1474 	result = gpio_add_callback(config->gpio_data_ready.port, &data->callback_data_ready);  in ads1x4s0x_init()
1476 		LOG_ERR("%s: failed to add data ready callback", dev->name);  in ads1x4s0x_init()
1477 		return -EIO;  in ads1x4s0x_init()
1481 	k_tid_t tid = k_thread_create(&data->thread, config->stack,  in ads1x4s0x_init()
1490 	if (config->gpio_reset.port == NULL) {  in ads1x4s0x_init()
1493 			LOG_ERR("%s: unable to send RESET command", dev->name);  in ads1x4s0x_init()
1498 		gpio_pin_set_dt(&config->gpio_reset, 0);  in ads1x4s0x_init()
1505 		LOG_ERR("%s: unable to read status register", dev->name);  in ads1x4s0x_init()
1510 		LOG_ERR("%s: ADS114 is not yet ready", dev->name);  in ads1x4s0x_init()
1511 		return -EBUSY;  in ads1x4s0x_init()
1522 		LOG_ERR("%s: unable to set default reference control values", dev->name);  in ads1x4s0x_init()
1531 		LOG_ERR("%s: unable to read reference control values", dev->name);  in ads1x4s0x_init()
1536 		LOG_ERR("%s: reference control register is incorrect: 0x%02X", dev->name,  in ads1x4s0x_init()
1538 		return -EIO;  in ads1x4s0x_init()
1542 	data->gpio_enabled = 0x00;  in ads1x4s0x_init()
1543 	data->gpio_direction = 0x0F;  in ads1x4s0x_init()
1544 	data->gpio_value = 0x00;  in ads1x4s0x_init()
1549 		LOG_ERR("%s: unable to configure defaults for GPIOs", dev->name);  in ads1x4s0x_init()
1554 	adc_context_unlock_unconditionally(&data->ctx);  in ads1x4s0x_init()