4  * SPDX-License-Identifier: Apache-2.0
39 /** Internal sample time unit conversion entry. */
45 /** Maps standard unit sample times (us) to internal (raw hal_ti register) values */
85 	data->repeat_buffer = data->buffer;  in adc_context_start_sampling()
87 	AUXADCEnableSync(data->ref_source, data->sample_time, AUXADC_TRIGGER_MANUAL);  in adc_context_start_sampling()
98 		data->buffer = data->repeat_buffer;  in adc_context_update_buffer_pointer()
100 		data->buffer++;  in adc_context_update_buffer_pointer()
106 	struct adc_cc13xx_cc26xx_data *data = dev->data;  in adc_cc13xx_cc26xx_init()
107 	const struct adc_cc13xx_cc26xx_cfg *config = dev->config;  in adc_cc13xx_cc26xx_init()
109 	data->dev = dev;  in adc_cc13xx_cc26xx_init()
116 	config->irq_cfg_func();  in adc_cc13xx_cc26xx_init()
118 	adc_context_unlock_unconditionally(&data->ctx);  in adc_cc13xx_cc26xx_init()
125 	struct adc_cc13xx_cc26xx_data *data = dev->data;  in adc_cc13xx_cc26xx_channel_setup()
126 	const uint8_t ch = channel_cfg->channel_id;  in adc_cc13xx_cc26xx_channel_setup()
132 		return -EINVAL;  in adc_cc13xx_cc26xx_channel_setup()
135 	switch (ADC_ACQ_TIME_UNIT(channel_cfg->acquisition_time)) {  in adc_cc13xx_cc26xx_channel_setup()
137 		data->sample_time = (uint16_t)ADC_ACQ_TIME_VALUE(channel_cfg->acquisition_time);  in adc_cc13xx_cc26xx_channel_setup()
140 		sample_time_us = (uint16_t)ADC_ACQ_TIME_VALUE(channel_cfg->acquisition_time);  in adc_cc13xx_cc26xx_channel_setup()
144 				ADC_ACQ_TIME_VALUE(channel_cfg->acquisition_time) * 1000);  in adc_cc13xx_cc26xx_channel_setup()
147 		data->sample_time = AUXADC_SAMPLE_TIME_170_US;  in adc_cc13xx_cc26xx_channel_setup()
151 		/* choose the nearest sample time configuration */  in adc_cc13xx_cc26xx_channel_setup()
152 		data->sample_time = adc_cc13xx_sample_times[0].reg_value;  in adc_cc13xx_cc26xx_channel_setup()
157 			data->sample_time = adc_cc13xx_sample_times[i].reg_value;  in adc_cc13xx_cc26xx_channel_setup()
160 			LOG_ERR("Acquisition time is not valid");  in adc_cc13xx_cc26xx_channel_setup()
161 			return -EINVAL;  in adc_cc13xx_cc26xx_channel_setup()
165 	if (channel_cfg->differential) {  in adc_cc13xx_cc26xx_channel_setup()
167 		return -EINVAL;  in adc_cc13xx_cc26xx_channel_setup()
170 	if (channel_cfg->gain != ADC_GAIN_1) {  in adc_cc13xx_cc26xx_channel_setup()
172 		return -EINVAL;  in adc_cc13xx_cc26xx_channel_setup()
175 	if (channel_cfg->reference == ADC_REF_INTERNAL) {  in adc_cc13xx_cc26xx_channel_setup()
176 		data->ref_source = AUXADC_REF_FIXED;  in adc_cc13xx_cc26xx_channel_setup()
177 	} else if (channel_cfg->reference == ADC_REF_VDD_1) {  in adc_cc13xx_cc26xx_channel_setup()
178 		data->ref_source = AUXADC_REF_VDDS_REL;  in adc_cc13xx_cc26xx_channel_setup()
181 		return -EINVAL;  in adc_cc13xx_cc26xx_channel_setup()
184 	LOG_DBG("Setup %d acq time %d", ch, data->sample_time);  in adc_cc13xx_cc26xx_channel_setup()
196 	struct adc_cc13xx_cc26xx_data *data = dev->data;  in cc13xx_cc26xx_read()
200 	if (sequence->resolution != 12) {  in cc13xx_cc26xx_read()
202 			sequence->resolution);  in cc13xx_cc26xx_read()
203 		return -EINVAL;  in cc13xx_cc26xx_read()
207 	if (sequence->options) {  in cc13xx_cc26xx_read()
208 		exp_size *= (1 + sequence->options->extra_samplings);  in cc13xx_cc26xx_read()
211 	if (sequence->buffer_size < exp_size) {  in cc13xx_cc26xx_read()
213 			exp_size, sequence->buffer_size);  in cc13xx_cc26xx_read()
214 		return -ENOMEM;  in cc13xx_cc26xx_read()
217 	data->buffer = sequence->buffer;  in cc13xx_cc26xx_read()
219 	adc_context_lock(&data->ctx, asynchronous, sig);  in cc13xx_cc26xx_read()
220 	adc_context_start_read(&data->ctx, sequence);  in cc13xx_cc26xx_read()
221 	rv = adc_context_wait_for_completion(&data->ctx);  in cc13xx_cc26xx_read()
222 	adc_context_release(&data->ctx, rv);  in cc13xx_cc26xx_read()
243  * - conversion complete or DMA done (if used);
244  * - FIFO underflow or overflow;
248 	struct adc_cc13xx_cc26xx_data *data = dev->data;  in adc_cc13xx_cc26xx_isr()
257 	/* clear the AUXADC-related event flags */  in adc_cc13xx_cc26xx_isr()
270 	LOG_DBG("ADC buf %04X val %d", (unsigned int)data->buffer, adc_value);  in adc_cc13xx_cc26xx_isr()
271 	*data->buffer = adc_value;  in adc_cc13xx_cc26xx_isr()
274 	adc_context_on_sampling_done(&data->ctx, dev);  in adc_cc13xx_cc26xx_isr()