4  * SPDX-License-Identifier: Apache-2.0
55 	const struct adc_numaker_config *cfg = dev->config;  in adc_numaker_channel_setup()
56 	struct adc_numaker_data *data = dev->data;  in adc_numaker_channel_setup()
58 	if (chan_cfg->acquisition_time != ADC_ACQ_TIME_DEFAULT) {  in adc_numaker_channel_setup()
59 		if ((ADC_ACQ_TIME_UNIT(chan_cfg->acquisition_time) != ADC_ACQ_TIME_TICKS) ||  in adc_numaker_channel_setup()
60 		    (ADC_ACQ_TIME_VALUE(chan_cfg->acquisition_time) > 255)) {  in adc_numaker_channel_setup()
62 			return -EINVAL;  in adc_numaker_channel_setup()
65 	data->acq_time = ADC_ACQ_TIME_VALUE(chan_cfg->acquisition_time);  in adc_numaker_channel_setup()
67 	if (chan_cfg->gain != ADC_GAIN_1) {  in adc_numaker_channel_setup()
69 		return -ENOTSUP;  in adc_numaker_channel_setup()
72 	if (chan_cfg->reference != ADC_REF_INTERNAL) {  in adc_numaker_channel_setup()
74 		return -ENOTSUP;  in adc_numaker_channel_setup()
77 	if (chan_cfg->channel_id >= cfg->channel_cnt) {  in adc_numaker_channel_setup()
78 		LOG_ERR("Invalid channel (%u)", chan_cfg->channel_id);  in adc_numaker_channel_setup()
79 		return -EINVAL;  in adc_numaker_channel_setup()
82 	data->is_differential = (chan_cfg->differential) ? true : false;  in adc_numaker_channel_setup()
90 	const struct adc_numaker_config *cfg = dev->config;  in m_adc_numaker_validate_buffer_size()
95 	for (mask = BIT(cfg->channel_cnt - 1); mask != 0; mask >>= 1) {  in m_adc_numaker_validate_buffer_size()
96 		if (mask & sequence->channels) {  in m_adc_numaker_validate_buffer_size()
102 	if (sequence->options) {  in m_adc_numaker_validate_buffer_size()
103 		needed_size *= (1 + sequence->options->extra_samplings);  in m_adc_numaker_validate_buffer_size()
106 	if (sequence->buffer_size < needed_size) {  in m_adc_numaker_validate_buffer_size()
107 		return -ENOBUFS;  in m_adc_numaker_validate_buffer_size()
115 	const struct adc_numaker_config *cfg = dev->config;  in adc_numaker_isr()
116 	EADC_T *eadc = cfg->eadc_base;  in adc_numaker_isr()
117 	struct adc_numaker_data *const data = dev->data;  in adc_numaker_isr()
118 	uint32_t channel_mask = data->channels;  in adc_numaker_isr()
125 	LOG_DBG("ADC ISR STATUS2[0x%x] STATUS3[0x%x]", eadc->STATUS2, eadc->STATUS3);  in adc_numaker_isr()
129 	 * Confirm all sample modules are idle by EADC_STATUS2_ADOVIF_Msk  in adc_numaker_isr()
131 	if (!(eadc->STATUS2 & EADC_STATUS2_BUSY_Msk) &&  in adc_numaker_isr()
132 	    ((eadc->STATUS3 & EADC_STATUS3_CURSPL_Msk) == EADC_STATUS3_CURSPL_Msk)) {  in adc_numaker_isr()
133 		/* Stop the conversion for sample module */  in adc_numaker_isr()
136 		/* Disable sample module A/D ADINT0 interrupt. */  in adc_numaker_isr()
139 		/* Disable the sample module ADINT0 interrupt source */  in adc_numaker_isr()
142 		/* Get conversion data of each sample module for selected channel */  in adc_numaker_isr()
144 			module_id = find_lsb_set(module_mask) - 1;  in adc_numaker_isr()
147 			if (data->buffer < data->buf_end) {  in adc_numaker_isr()
148 				*data->buffer++ = conv_data;  in adc_numaker_isr()
153 			/* Disable all channels on each sample module */  in adc_numaker_isr()
154 			eadc->SCTL[module_id] = 0;  in adc_numaker_isr()
158 		adc_context_on_sampling_done(&data->ctx, data->dev);  in adc_numaker_isr()
167 	const struct adc_numaker_config *cfg = dev->config;  in m_adc_numaker_start_scan()
168 	EADC_T *eadc = cfg->eadc_base;  in m_adc_numaker_start_scan()
169 	struct adc_numaker_data *const data = dev->data;  in m_adc_numaker_start_scan()
170 	uint32_t channel_mask = data->channels;  in m_adc_numaker_start_scan()
175 	/* Configure the sample module, analog input channel and software trigger source */  in m_adc_numaker_start_scan()
177 		channel_id = find_lsb_set(channel_mask) - 1;  in m_adc_numaker_start_scan()
182 		/* Set sample module external sampling time to 0 */  in m_adc_numaker_start_scan()
183 		EADC_SetExtendSampleTime(eadc, module_id, data->acq_time);  in m_adc_numaker_start_scan()
189 	/* Enable sample module A/D ADINT0 interrupt. */  in m_adc_numaker_start_scan()
192 	/* Enable sample module interrupt ADINT0. */  in m_adc_numaker_start_scan()
200  * - adc_context_start_sampling()
201  * - adc_context_update_buffer_pointer()
208 	data->repeat_buffer = data->buffer;  in adc_context_start_sampling()
209 	data->channels = ctx->sequence.channels;  in adc_context_start_sampling()
211 	/* Start ADC conversion for sample modules/channels */  in adc_context_start_sampling()
212 	m_adc_numaker_start_scan(data->dev);  in adc_context_start_sampling()
222 		data->buffer = data->repeat_buffer;  in adc_context_update_buffer_pointer()
230 	const struct adc_numaker_config *cfg = data->dev->config;  in adc_context_on_complete()
231 	EADC_T *eadc = cfg->eadc_base;  in adc_context_on_complete()
242 	const struct adc_numaker_config *cfg = dev->config;  in m_adc_numaker_start_read()
243 	struct adc_numaker_data *data = dev->data;  in m_adc_numaker_start_read()
244 	EADC_T *eadc = cfg->eadc_base;  in m_adc_numaker_start_read()
253 	if (!sequence->resolution) {  in m_adc_numaker_start_read()
255 		return -EINVAL;  in m_adc_numaker_start_read()
257 	LOG_DBG("Configure resolution=%d", sequence->resolution);  in m_adc_numaker_start_read()
260 	if (data->is_differential) {  in m_adc_numaker_start_read()
266 	data->buffer = sequence->buffer;  in m_adc_numaker_start_read()
267 	data->buf_end = data->buffer + sequence->buffer_size / sizeof(uint16_t);  in m_adc_numaker_start_read()
270 	adc_context_start_read(&data->ctx, sequence);  in m_adc_numaker_start_read()
272 	return adc_context_wait_for_completion(&data->ctx);  in m_adc_numaker_start_read()
278 	struct adc_numaker_data *data = dev->data;  in adc_numaker_read()
281 	adc_context_lock(&data->ctx, false, NULL);  in adc_numaker_read()
283 	adc_context_release(&data->ctx, err);  in adc_numaker_read()
293 	struct adc_numaker_data *data = dev->data;  in adc_numaker_read_async()
296 	adc_context_lock(&data->ctx, true, async);  in adc_numaker_read_async()
298 	adc_context_release(&data->ctx, err);  in adc_numaker_read_async()
314 	const struct adc_numaker_config *cfg = dev->config;  in adc_numaker_init()
315 	struct adc_numaker_data *data = dev->data;  in adc_numaker_init()
320 	if (!device_is_ready(cfg->reset.dev)) {  in adc_numaker_init()
322 		return -ENODEV;  in adc_numaker_init()
325 	data->dev = dev;  in adc_numaker_init()
329 	/* CLK controller */  in adc_numaker_init()
332 	scc_subsys.pcc.clk_modidx = cfg->clk_modidx;  in adc_numaker_init()
333 	scc_subsys.pcc.clk_src = cfg->clk_src;  in adc_numaker_init()
334 	scc_subsys.pcc.clk_div = cfg->clk_div;  in adc_numaker_init()
337 	err = clock_control_on(cfg->clk_dev, (clock_control_subsys_t)&scc_subsys);  in adc_numaker_init()
342 	err = clock_control_configure(cfg->clk_dev, (clock_control_subsys_t)&scc_subsys, NULL);  in adc_numaker_init()
347 	err = pinctrl_apply_state(cfg->pincfg, PINCTRL_STATE_DEFAULT);  in adc_numaker_init()
354 	reset_line_toggle_dt(&cfg->reset);  in adc_numaker_init()
357 	cfg->irq_config_func(dev);  in adc_numaker_init()
360 	adc_context_unlock_unconditionally(&data->ctx);  in adc_numaker_init()