40 void ad_sd_set_comm(struct ad_sigma_delta *sigma_delta, uint8_t comm)  in ad_sd_set_comm()  argument
44 	sigma_delta->comm = comm & AD_SD_COMM_CHAN_MASK;  in ad_sd_set_comm()
58 int ad_sd_write_reg(struct ad_sigma_delta *sigma_delta, unsigned int reg,  in ad_sd_write_reg()  argument
61 	uint8_t *data = sigma_delta->data;  in ad_sd_write_reg()
65 		.cs_change	= sigma_delta->bus_locked,  in ad_sd_write_reg()
70 	data[0] = (reg << sigma_delta->info->addr_shift) | sigma_delta->comm;  in ad_sd_write_reg()
93 	if (sigma_delta->bus_locked)  in ad_sd_write_reg()
94 		ret = spi_sync_locked(sigma_delta->spi, &m);  in ad_sd_write_reg()
96 		ret = spi_sync(sigma_delta->spi, &m);  in ad_sd_write_reg()
102 static int ad_sd_read_reg_raw(struct ad_sigma_delta *sigma_delta,  in ad_sd_read_reg_raw()  argument
105 	uint8_t *data = sigma_delta->data;  in ad_sd_read_reg_raw()
114 			.cs_change = sigma_delta->bus_locked,  in ad_sd_read_reg_raw()
121 	if (sigma_delta->info->has_registers) {  in ad_sd_read_reg_raw()
122 		data[0] = reg << sigma_delta->info->addr_shift;  in ad_sd_read_reg_raw()
123 		data[0] |= sigma_delta->info->read_mask;  in ad_sd_read_reg_raw()
128 	if (sigma_delta->bus_locked)  in ad_sd_read_reg_raw()
129 		ret = spi_sync_locked(sigma_delta->spi, &m);  in ad_sd_read_reg_raw()
131 		ret = spi_sync(sigma_delta->spi, &m);  in ad_sd_read_reg_raw()
146 int ad_sd_read_reg(struct ad_sigma_delta *sigma_delta,  in ad_sd_read_reg()  argument
151 	ret = ad_sd_read_reg_raw(sigma_delta, reg, size, sigma_delta->data);  in ad_sd_read_reg()
157 		*val = get_unaligned_be32(sigma_delta->data);  in ad_sd_read_reg()
160 		*val = (sigma_delta->data[0] << 16) |  in ad_sd_read_reg()
161 			(sigma_delta->data[1] << 8) |  in ad_sd_read_reg()
162 			sigma_delta->data[2];  in ad_sd_read_reg()
165 		*val = get_unaligned_be16(sigma_delta->data);  in ad_sd_read_reg()
168 		*val = sigma_delta->data[0];  in ad_sd_read_reg()
188 int ad_sd_reset(struct ad_sigma_delta *sigma_delta,  in ad_sd_reset()  argument
201 	ret = spi_write(sigma_delta->spi, buf, size);  in ad_sd_reset()
208 static int ad_sd_calibrate(struct ad_sigma_delta *sigma_delta,  in ad_sd_calibrate()  argument
214 	ret = ad_sigma_delta_set_channel(sigma_delta, channel);  in ad_sd_calibrate()
218 	spi_bus_lock(sigma_delta->spi->master);  in ad_sd_calibrate()
219 	sigma_delta->bus_locked = true;  in ad_sd_calibrate()
220 	reinit_completion(&sigma_delta->completion);  in ad_sd_calibrate()
222 	ret = ad_sigma_delta_set_mode(sigma_delta, mode);  in ad_sd_calibrate()
226 	sigma_delta->irq_dis = false;  in ad_sd_calibrate()
227 	enable_irq(sigma_delta->spi->irq);  in ad_sd_calibrate()
228 	timeout = wait_for_completion_timeout(&sigma_delta->completion, 2 * HZ);  in ad_sd_calibrate()
230 		sigma_delta->irq_dis = true;  in ad_sd_calibrate()
231 		disable_irq_nosync(sigma_delta->spi->irq);  in ad_sd_calibrate()
237 	sigma_delta->bus_locked = false;  in ad_sd_calibrate()
238 	spi_bus_unlock(sigma_delta->spi->master);  in ad_sd_calibrate()
239 	ad_sigma_delta_set_mode(sigma_delta, AD_SD_MODE_IDLE);  in ad_sd_calibrate()
252 int ad_sd_calibrate_all(struct ad_sigma_delta *sigma_delta,  in ad_sd_calibrate_all()  argument
259 		ret = ad_sd_calibrate(sigma_delta, cb[i].mode, cb[i].channel);  in ad_sd_calibrate_all()
279 	struct ad_sigma_delta *sigma_delta = iio_device_get_drvdata(indio_dev);  in ad_sigma_delta_single_conversion()  local
287 	ad_sigma_delta_set_channel(sigma_delta, chan->address);  in ad_sigma_delta_single_conversion()
289 	spi_bus_lock(sigma_delta->spi->master);  in ad_sigma_delta_single_conversion()
290 	sigma_delta->bus_locked = true;  in ad_sigma_delta_single_conversion()
291 	reinit_completion(&sigma_delta->completion);  in ad_sigma_delta_single_conversion()
293 	ad_sigma_delta_set_mode(sigma_delta, AD_SD_MODE_SINGLE);  in ad_sigma_delta_single_conversion()
295 	sigma_delta->irq_dis = false;  in ad_sigma_delta_single_conversion()
296 	enable_irq(sigma_delta->spi->irq);  in ad_sigma_delta_single_conversion()
298 			&sigma_delta->completion, HZ);  in ad_sigma_delta_single_conversion()
300 	sigma_delta->bus_locked = false;  in ad_sigma_delta_single_conversion()
301 	spi_bus_unlock(sigma_delta->spi->master);  in ad_sigma_delta_single_conversion()
308 	ret = ad_sd_read_reg(sigma_delta, AD_SD_REG_DATA,  in ad_sigma_delta_single_conversion()
313 	if (!sigma_delta->irq_dis) {  in ad_sigma_delta_single_conversion()
314 		disable_irq_nosync(sigma_delta->spi->irq);  in ad_sigma_delta_single_conversion()
315 		sigma_delta->irq_dis = true;  in ad_sigma_delta_single_conversion()
318 	ad_sigma_delta_set_mode(sigma_delta, AD_SD_MODE_IDLE);  in ad_sigma_delta_single_conversion()
328 	ret = ad_sigma_delta_postprocess_sample(sigma_delta, raw_sample);  in ad_sigma_delta_single_conversion()
338 	struct ad_sigma_delta *sigma_delta = iio_device_get_drvdata(indio_dev);  in ad_sd_buffer_postenable()  local
348 	ret = ad_sigma_delta_set_channel(sigma_delta,  in ad_sd_buffer_postenable()
353 	spi_bus_lock(sigma_delta->spi->master);  in ad_sd_buffer_postenable()
354 	sigma_delta->bus_locked = true;  in ad_sd_buffer_postenable()
355 	ret = ad_sigma_delta_set_mode(sigma_delta, AD_SD_MODE_CONTINUOUS);  in ad_sd_buffer_postenable()
359 	sigma_delta->irq_dis = false;  in ad_sd_buffer_postenable()
360 	enable_irq(sigma_delta->spi->irq);  in ad_sd_buffer_postenable()
365 	spi_bus_unlock(sigma_delta->spi->master);  in ad_sd_buffer_postenable()
373 	struct ad_sigma_delta *sigma_delta = iio_device_get_drvdata(indio_dev);  in ad_sd_buffer_postdisable()  local
375 	reinit_completion(&sigma_delta->completion);  in ad_sd_buffer_postdisable()
376 	wait_for_completion_timeout(&sigma_delta->completion, HZ);  in ad_sd_buffer_postdisable()
378 	if (!sigma_delta->irq_dis) {  in ad_sd_buffer_postdisable()
379 		disable_irq_nosync(sigma_delta->spi->irq);  in ad_sd_buffer_postdisable()
380 		sigma_delta->irq_dis = true;  in ad_sd_buffer_postdisable()
383 	ad_sigma_delta_set_mode(sigma_delta, AD_SD_MODE_IDLE);  in ad_sd_buffer_postdisable()
385 	sigma_delta->bus_locked = false;  in ad_sd_buffer_postdisable()
386 	return spi_bus_unlock(sigma_delta->spi->master);  in ad_sd_buffer_postdisable()
393 	struct ad_sigma_delta *sigma_delta = iio_device_get_drvdata(indio_dev);  in ad_sd_trigger_handler()  local
408 		ret = ad_sd_read_reg_raw(sigma_delta, AD_SD_REG_DATA,  in ad_sd_trigger_handler()
414 		ret = ad_sd_read_reg_raw(sigma_delta, AD_SD_REG_DATA,  in ad_sd_trigger_handler()
422 	sigma_delta->irq_dis = false;  in ad_sd_trigger_handler()
423 	enable_irq(sigma_delta->spi->irq);  in ad_sd_trigger_handler()
437 	struct ad_sigma_delta *sigma_delta = private;  in ad_sd_data_rdy_trig_poll()  local
439 	complete(&sigma_delta->completion);  in ad_sd_data_rdy_trig_poll()
441 	sigma_delta->irq_dis = true;  in ad_sd_data_rdy_trig_poll()
442 	iio_trigger_poll(sigma_delta->trig);  in ad_sd_data_rdy_trig_poll()
457 	struct ad_sigma_delta *sigma_delta = iio_device_get_drvdata(indio_dev);  in ad_sd_validate_trigger()  local
459 	if (sigma_delta->trig != trig)  in ad_sd_validate_trigger()
471 	struct ad_sigma_delta *sigma_delta = iio_device_get_drvdata(indio_dev);  in ad_sd_probe_trigger()  local
474 	sigma_delta->trig = iio_trigger_alloc("%s-dev%d", indio_dev->name,  in ad_sd_probe_trigger()
476 	if (sigma_delta->trig == NULL) {  in ad_sd_probe_trigger()
480 	sigma_delta->trig->ops = &ad_sd_trigger_ops;  in ad_sd_probe_trigger()
481 	init_completion(&sigma_delta->completion);  in ad_sd_probe_trigger()
483 	ret = request_irq(sigma_delta->spi->irq,  in ad_sd_probe_trigger()
487 			  sigma_delta);  in ad_sd_probe_trigger()
491 	if (!sigma_delta->irq_dis) {  in ad_sd_probe_trigger()
492 		sigma_delta->irq_dis = true;  in ad_sd_probe_trigger()
493 		disable_irq_nosync(sigma_delta->spi->irq);  in ad_sd_probe_trigger()
495 	sigma_delta->trig->dev.parent = &sigma_delta->spi->dev;  in ad_sd_probe_trigger()
496 	iio_trigger_set_drvdata(sigma_delta->trig, sigma_delta);  in ad_sd_probe_trigger()
498 	ret = iio_trigger_register(sigma_delta->trig);  in ad_sd_probe_trigger()
503 	indio_dev->trig = iio_trigger_get(sigma_delta->trig);  in ad_sd_probe_trigger()
508 	free_irq(sigma_delta->spi->irq, sigma_delta);  in ad_sd_probe_trigger()
510 	iio_trigger_free(sigma_delta->trig);  in ad_sd_probe_trigger()
517 	struct ad_sigma_delta *sigma_delta = iio_device_get_drvdata(indio_dev);  in ad_sd_remove_trigger()  local
519 	iio_trigger_unregister(sigma_delta->trig);  in ad_sd_remove_trigger()
520 	free_irq(sigma_delta->spi->irq, sigma_delta);  in ad_sd_remove_trigger()
521 	iio_trigger_free(sigma_delta->trig);  in ad_sd_remove_trigger()
568 int ad_sd_init(struct ad_sigma_delta *sigma_delta, struct iio_dev *indio_dev,  in ad_sd_init()  argument
571 	sigma_delta->spi = spi;  in ad_sd_init()
572 	sigma_delta->info = info;  in ad_sd_init()
573 	iio_device_set_drvdata(indio_dev, sigma_delta);  in ad_sd_init()