39 void ad_sd_set_comm(struct ad_sigma_delta *sigma_delta, uint8_t comm)  in ad_sd_set_comm()  argument
43 	sigma_delta->comm = comm & AD_SD_COMM_CHAN_MASK;  in ad_sd_set_comm()
57 int ad_sd_write_reg(struct ad_sigma_delta *sigma_delta, unsigned int reg,  in ad_sd_write_reg()  argument
60 	uint8_t *data = sigma_delta->data;  in ad_sd_write_reg()
64 		.cs_change	= sigma_delta->keep_cs_asserted,  in ad_sd_write_reg()
69 	data[0] = (reg << sigma_delta->info->addr_shift) | sigma_delta->comm;  in ad_sd_write_reg()
92 	if (sigma_delta->bus_locked)  in ad_sd_write_reg()
93 		ret = spi_sync_locked(sigma_delta->spi, &m);  in ad_sd_write_reg()
95 		ret = spi_sync(sigma_delta->spi, &m);  in ad_sd_write_reg()
101 static int ad_sd_read_reg_raw(struct ad_sigma_delta *sigma_delta,  in ad_sd_read_reg_raw()  argument
104 	uint8_t *data = sigma_delta->data;  in ad_sd_read_reg_raw()
113 			.cs_change = sigma_delta->bus_locked,  in ad_sd_read_reg_raw()
120 	if (sigma_delta->info->has_registers) {  in ad_sd_read_reg_raw()
121 		data[0] = reg << sigma_delta->info->addr_shift;  in ad_sd_read_reg_raw()
122 		data[0] |= sigma_delta->info->read_mask;  in ad_sd_read_reg_raw()
123 		data[0] |= sigma_delta->comm;  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 	sigma_delta->keep_cs_asserted = true;  in ad_sd_calibrate()
221 	reinit_completion(&sigma_delta->completion);  in ad_sd_calibrate()
223 	ret = ad_sigma_delta_set_mode(sigma_delta, mode);  in ad_sd_calibrate()
227 	sigma_delta->irq_dis = false;  in ad_sd_calibrate()
228 	enable_irq(sigma_delta->spi->irq);  in ad_sd_calibrate()
229 	timeout = wait_for_completion_timeout(&sigma_delta->completion, 2 * HZ);  in ad_sd_calibrate()
231 		sigma_delta->irq_dis = true;  in ad_sd_calibrate()
232 		disable_irq_nosync(sigma_delta->spi->irq);  in ad_sd_calibrate()
238 	sigma_delta->keep_cs_asserted = false;  in ad_sd_calibrate()
239 	ad_sigma_delta_set_mode(sigma_delta, AD_SD_MODE_IDLE);  in ad_sd_calibrate()
240 	sigma_delta->bus_locked = false;  in ad_sd_calibrate()
241 	spi_bus_unlock(sigma_delta->spi->master);  in ad_sd_calibrate()
254 int ad_sd_calibrate_all(struct ad_sigma_delta *sigma_delta,  in ad_sd_calibrate_all()  argument
261 		ret = ad_sd_calibrate(sigma_delta, cb[i].mode, cb[i].channel);  in ad_sd_calibrate_all()
281 	struct ad_sigma_delta *sigma_delta = iio_device_get_drvdata(indio_dev);  in ad_sigma_delta_single_conversion()  local
290 	ad_sigma_delta_set_channel(sigma_delta, chan->address);  in ad_sigma_delta_single_conversion()
292 	spi_bus_lock(sigma_delta->spi->master);  in ad_sigma_delta_single_conversion()
293 	sigma_delta->bus_locked = true;  in ad_sigma_delta_single_conversion()
294 	sigma_delta->keep_cs_asserted = true;  in ad_sigma_delta_single_conversion()
295 	reinit_completion(&sigma_delta->completion);  in ad_sigma_delta_single_conversion()
297 	ad_sigma_delta_set_mode(sigma_delta, AD_SD_MODE_SINGLE);  in ad_sigma_delta_single_conversion()
299 	sigma_delta->irq_dis = false;  in ad_sigma_delta_single_conversion()
300 	enable_irq(sigma_delta->spi->irq);  in ad_sigma_delta_single_conversion()
302 			&sigma_delta->completion, HZ);  in ad_sigma_delta_single_conversion()
309 	if (sigma_delta->info->data_reg != 0)  in ad_sigma_delta_single_conversion()
310 		data_reg = sigma_delta->info->data_reg;  in ad_sigma_delta_single_conversion()
314 	ret = ad_sd_read_reg(sigma_delta, data_reg,  in ad_sigma_delta_single_conversion()
319 	if (!sigma_delta->irq_dis) {  in ad_sigma_delta_single_conversion()
320 		disable_irq_nosync(sigma_delta->spi->irq);  in ad_sigma_delta_single_conversion()
321 		sigma_delta->irq_dis = true;  in ad_sigma_delta_single_conversion()
324 	sigma_delta->keep_cs_asserted = false;  in ad_sigma_delta_single_conversion()
325 	ad_sigma_delta_set_mode(sigma_delta, AD_SD_MODE_IDLE);  in ad_sigma_delta_single_conversion()
326 	sigma_delta->bus_locked = false;  in ad_sigma_delta_single_conversion()
327 	spi_bus_unlock(sigma_delta->spi->master);  in ad_sigma_delta_single_conversion()
337 	ret = ad_sigma_delta_postprocess_sample(sigma_delta, raw_sample);  in ad_sigma_delta_single_conversion()
347 	struct ad_sigma_delta *sigma_delta = iio_device_get_drvdata(indio_dev);  in ad_sd_buffer_postenable()  local
357 	ret = ad_sigma_delta_set_channel(sigma_delta,  in ad_sd_buffer_postenable()
362 	spi_bus_lock(sigma_delta->spi->master);  in ad_sd_buffer_postenable()
363 	sigma_delta->bus_locked = true;  in ad_sd_buffer_postenable()
364 	sigma_delta->keep_cs_asserted = true;  in ad_sd_buffer_postenable()
366 	ret = ad_sigma_delta_set_mode(sigma_delta, AD_SD_MODE_CONTINUOUS);  in ad_sd_buffer_postenable()
370 	sigma_delta->irq_dis = false;  in ad_sd_buffer_postenable()
371 	enable_irq(sigma_delta->spi->irq);  in ad_sd_buffer_postenable()
376 	spi_bus_unlock(sigma_delta->spi->master);  in ad_sd_buffer_postenable()
383 	struct ad_sigma_delta *sigma_delta = iio_device_get_drvdata(indio_dev);  in ad_sd_buffer_postdisable()  local
385 	reinit_completion(&sigma_delta->completion);  in ad_sd_buffer_postdisable()
386 	wait_for_completion_timeout(&sigma_delta->completion, HZ);  in ad_sd_buffer_postdisable()
388 	if (!sigma_delta->irq_dis) {  in ad_sd_buffer_postdisable()
389 		disable_irq_nosync(sigma_delta->spi->irq);  in ad_sd_buffer_postdisable()
390 		sigma_delta->irq_dis = true;  in ad_sd_buffer_postdisable()
393 	sigma_delta->keep_cs_asserted = false;  in ad_sd_buffer_postdisable()
394 	ad_sigma_delta_set_mode(sigma_delta, AD_SD_MODE_IDLE);  in ad_sd_buffer_postdisable()
396 	sigma_delta->bus_locked = false;  in ad_sd_buffer_postdisable()
397 	return spi_bus_unlock(sigma_delta->spi->master);  in ad_sd_buffer_postdisable()
404 	struct ad_sigma_delta *sigma_delta = iio_device_get_drvdata(indio_dev);  in ad_sd_trigger_handler()  local
416 	if (sigma_delta->info->data_reg != 0)  in ad_sd_trigger_handler()
417 		data_reg = sigma_delta->info->data_reg;  in ad_sd_trigger_handler()
425 		ret = ad_sd_read_reg_raw(sigma_delta, data_reg, reg_size,  in ad_sd_trigger_handler()
431 		ret = ad_sd_read_reg_raw(sigma_delta, data_reg, reg_size,  in ad_sd_trigger_handler()
439 	sigma_delta->irq_dis = false;  in ad_sd_trigger_handler()
440 	enable_irq(sigma_delta->spi->irq);  in ad_sd_trigger_handler()
454 	struct ad_sigma_delta *sigma_delta = private;  in ad_sd_data_rdy_trig_poll()  local
456 	complete(&sigma_delta->completion);  in ad_sd_data_rdy_trig_poll()
458 	sigma_delta->irq_dis = true;  in ad_sd_data_rdy_trig_poll()
459 	iio_trigger_poll(sigma_delta->trig);  in ad_sd_data_rdy_trig_poll()
474 	struct ad_sigma_delta *sigma_delta = iio_device_get_drvdata(indio_dev);  in ad_sd_validate_trigger()  local
476 	if (sigma_delta->trig != trig)  in ad_sd_validate_trigger()
488 	struct ad_sigma_delta *sigma_delta = iio_device_get_drvdata(indio_dev);  in ad_sd_probe_trigger()  local
491 	sigma_delta->trig = iio_trigger_alloc("%s-dev%d", indio_dev->name,  in ad_sd_probe_trigger()
493 	if (sigma_delta->trig == NULL) {  in ad_sd_probe_trigger()
497 	sigma_delta->trig->ops = &ad_sd_trigger_ops;  in ad_sd_probe_trigger()
498 	init_completion(&sigma_delta->completion);  in ad_sd_probe_trigger()
500 	ret = request_irq(sigma_delta->spi->irq,  in ad_sd_probe_trigger()
504 			  sigma_delta);  in ad_sd_probe_trigger()
508 	if (!sigma_delta->irq_dis) {  in ad_sd_probe_trigger()
509 		sigma_delta->irq_dis = true;  in ad_sd_probe_trigger()
510 		disable_irq_nosync(sigma_delta->spi->irq);  in ad_sd_probe_trigger()
512 	sigma_delta->trig->dev.parent = &sigma_delta->spi->dev;  in ad_sd_probe_trigger()
513 	iio_trigger_set_drvdata(sigma_delta->trig, sigma_delta);  in ad_sd_probe_trigger()
515 	ret = iio_trigger_register(sigma_delta->trig);  in ad_sd_probe_trigger()
520 	indio_dev->trig = iio_trigger_get(sigma_delta->trig);  in ad_sd_probe_trigger()
525 	free_irq(sigma_delta->spi->irq, sigma_delta);  in ad_sd_probe_trigger()
527 	iio_trigger_free(sigma_delta->trig);  in ad_sd_probe_trigger()
534 	struct ad_sigma_delta *sigma_delta = iio_device_get_drvdata(indio_dev);  in ad_sd_remove_trigger()  local
536 	iio_trigger_unregister(sigma_delta->trig);  in ad_sd_remove_trigger()
537 	free_irq(sigma_delta->spi->irq, sigma_delta);  in ad_sd_remove_trigger()
538 	iio_trigger_free(sigma_delta->trig);  in ad_sd_remove_trigger()
585 int ad_sd_init(struct ad_sigma_delta *sigma_delta, struct iio_dev *indio_dev,  in ad_sd_init()  argument
588 	sigma_delta->spi = spi;  in ad_sd_init()
589 	sigma_delta->info = info;  in ad_sd_init()
590 	iio_device_set_drvdata(indio_dev, sigma_delta);  in ad_sd_init()