Lines Matching +full:iio +full:- +full:backend
1 // SPDX-License-Identifier: GPL-2.0-only
12 #include <linux/iio/backend.h>
13 #include <linux/iio/buffer.h>
20 #include "ad3552r-hs.h"
39 ret = st->data->bus_reg_read(st->back, reg, &rval, xfer_size); in ad3552r_qspi_update_reg_bits()
45 return st->data->bus_reg_write(st->back, reg, rval, xfer_size); in ad3552r_qspi_update_reg_bits()
54 int ch = chan->channel; in ad3552r_hs_read_raw()
62 *val = DIV_ROUND_CLOSEST(st->data->bus_sample_data_clock_hz * in ad3552r_hs_read_raw()
63 4 * 2, chan->scan_type.realbits); in ad3552r_hs_read_raw()
68 ret = st->data->bus_reg_read(st->back, in ad3552r_hs_read_raw()
69 AD3552R_REG_ADDR_CH_DAC_16B(chan->channel), in ad3552r_hs_read_raw()
76 *val = st->ch_data[ch].scale_int; in ad3552r_hs_read_raw()
77 *val2 = st->ch_data[ch].scale_dec; in ad3552r_hs_read_raw()
80 *val = st->ch_data[ch].offset_int; in ad3552r_hs_read_raw()
81 *val2 = st->ch_data[ch].offset_dec; in ad3552r_hs_read_raw()
84 return -EINVAL; in ad3552r_hs_read_raw()
96 iio_device_claim_direct_scoped(return -EBUSY, indio_dev) { in ad3552r_hs_write_raw()
97 return st->data->bus_reg_write(st->back, in ad3552r_hs_write_raw()
98 AD3552R_REG_ADDR_CH_DAC_16B(chan->channel), in ad3552r_hs_write_raw()
103 return -EINVAL; in ad3552r_hs_write_raw()
115 switch (*indio_dev->active_scan_mask) { in ad3552r_hs_buffer_postenable()
117 st->single_channel = true; in ad3552r_hs_buffer_postenable()
122 st->single_channel = true; in ad3552r_hs_buffer_postenable()
127 st->single_channel = false; in ad3552r_hs_buffer_postenable()
132 return -EINVAL; in ad3552r_hs_buffer_postenable()
135 ret = st->data->bus_reg_write(st->back, AD3552R_REG_ADDR_STREAM_MODE, in ad3552r_hs_buffer_postenable()
149 ret = iio_backend_ddr_enable(st->back); in ad3552r_hs_buffer_postenable()
151 dev_err(st->dev, "could not set DDR mode, not streaming"); in ad3552r_hs_buffer_postenable()
155 ret = iio_backend_data_transfer_addr(st->back, val); in ad3552r_hs_buffer_postenable()
159 ret = iio_backend_data_format_set(st->back, 0, &fmt); in ad3552r_hs_buffer_postenable()
163 ret = iio_backend_data_stream_enable(st->back); in ad3552r_hs_buffer_postenable()
175 iio_backend_ddr_disable(st->back); in ad3552r_hs_buffer_postenable()
185 ret = iio_backend_data_stream_disable(st->back); in ad3552r_hs_buffer_predisable()
197 ret = iio_backend_ddr_disable(st->back); in ad3552r_hs_buffer_predisable()
224 st->reset_gpio = devm_gpiod_get_optional(st->dev, in ad3552r_hs_reset()
226 if (IS_ERR(st->reset_gpio)) in ad3552r_hs_reset()
227 return PTR_ERR(st->reset_gpio); in ad3552r_hs_reset()
229 if (st->reset_gpio) { in ad3552r_hs_reset()
231 gpiod_set_value_cansleep(st->reset_gpio, 0); in ad3552r_hs_reset()
249 ret = st->data->bus_reg_write(st->back, AD3552R_REG_ADDR_SCRATCH_PAD, in ad3552r_hs_scratch_pad_test()
254 ret = st->data->bus_reg_read(st->back, AD3552R_REG_ADDR_SCRATCH_PAD, in ad3552r_hs_scratch_pad_test()
260 return dev_err_probe(st->dev, -EIO, in ad3552r_hs_scratch_pad_test()
264 ret = st->data->bus_reg_write(st->back, AD3552R_REG_ADDR_SCRATCH_PAD, in ad3552r_hs_scratch_pad_test()
269 ret = st->data->bus_reg_read(st->back, AD3552R_REG_ADDR_SCRATCH_PAD, in ad3552r_hs_scratch_pad_test()
275 return dev_err_probe(st->dev, -EIO, in ad3552r_hs_scratch_pad_test()
287 ret = st->data->bus_reg_write(st->back, AD3552R_REG_ADDR_CH_OFFSET(ch), in ad3552r_hs_setup_custom_gain()
292 return st->data->bus_reg_write(st->back, AD3552R_REG_ADDR_CH_GAIN(ch), in ad3552r_hs_setup_custom_gain()
307 ret = iio_backend_ddr_disable(st->back); in ad3552r_hs_setup()
315 ret = st->data->bus_reg_read(st->back, AD3552R_REG_ADDR_PRODUCT_ID_L, in ad3552r_hs_setup()
322 ret = st->data->bus_reg_read(st->back, AD3552R_REG_ADDR_PRODUCT_ID_H, in ad3552r_hs_setup()
328 if (id != st->model_data->chip_id) in ad3552r_hs_setup()
329 dev_info(st->dev, "Chip ID error. Expected 0x%x, Read 0x%x\n", in ad3552r_hs_setup()
333 ret = st->data->bus_reg_write(st->back, AD3552R_REG_ADDR_ERR_STATUS, in ad3552r_hs_setup()
338 ret = st->data->bus_reg_write(st->back, in ad3552r_hs_setup()
344 ret = st->data->bus_reg_write(st->back, in ad3552r_hs_setup()
352 ret = iio_backend_data_source_set(st->back, 0, IIO_BACKEND_EXTERNAL); in ad3552r_hs_setup()
356 ret = iio_backend_data_source_set(st->back, 1, IIO_BACKEND_EXTERNAL); in ad3552r_hs_setup()
360 ret = ad3552r_get_ref_voltage(st->dev, &val); in ad3552r_hs_setup()
373 ret = ad3552r_get_drive_strength(st->dev, &val); in ad3552r_hs_setup()
383 device_for_each_child_node_scoped(st->dev, child) { in ad3552r_hs_setup()
386 return dev_err_probe(st->dev, ret, in ad3552r_hs_setup()
389 ret = ad3552r_get_output_range(st->dev, st->model_data, child, in ad3552r_hs_setup()
391 if (ret && ret != -ENOENT) in ad3552r_hs_setup()
393 if (ret == -ENOENT) { in ad3552r_hs_setup()
394 ret = ad3552r_get_custom_gain(st->dev, child, in ad3552r_hs_setup()
395 &st->ch_data[ch].p, in ad3552r_hs_setup()
396 &st->ch_data[ch].n, in ad3552r_hs_setup()
397 &st->ch_data[ch].rfb, in ad3552r_hs_setup()
398 &st->ch_data[ch].gain_offset); in ad3552r_hs_setup()
402 gain = ad3552r_calc_custom_gain(st->ch_data[ch].p, in ad3552r_hs_setup()
403 st->ch_data[ch].n, in ad3552r_hs_setup()
404 st->ch_data[ch].gain_offset); in ad3552r_hs_setup()
405 offset = abs(st->ch_data[ch].gain_offset); in ad3552r_hs_setup()
407 st->ch_data[ch].range_override = 1; in ad3552r_hs_setup()
414 st->ch_data[ch].range = range; in ad3552r_hs_setup()
421 ad3552r_calc_gain_and_offset(&st->ch_data[ch], st->model_data); in ad3552r_hs_setup()
466 indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(*st)); in ad3552r_hs_probe()
468 return -ENOMEM; in ad3552r_hs_probe()
471 st->dev = &pdev->dev; in ad3552r_hs_probe()
473 st->data = dev_get_platdata(st->dev); in ad3552r_hs_probe()
474 if (!st->data) in ad3552r_hs_probe()
475 return dev_err_probe(st->dev, -ENODEV, "No platform data !"); in ad3552r_hs_probe()
477 st->back = devm_iio_backend_get(&pdev->dev, NULL); in ad3552r_hs_probe()
478 if (IS_ERR(st->back)) in ad3552r_hs_probe()
479 return PTR_ERR(st->back); in ad3552r_hs_probe()
481 ret = devm_iio_backend_enable(&pdev->dev, st->back); in ad3552r_hs_probe()
485 st->model_data = device_get_match_data(&pdev->dev); in ad3552r_hs_probe()
486 if (!st->model_data) in ad3552r_hs_probe()
487 return -ENODEV; in ad3552r_hs_probe()
489 indio_dev->name = "ad3552r"; in ad3552r_hs_probe()
490 indio_dev->modes = INDIO_DIRECT_MODE; in ad3552r_hs_probe()
491 indio_dev->setup_ops = &ad3552r_hs_buffer_setup_ops; in ad3552r_hs_probe()
492 indio_dev->channels = ad3552r_hs_channels; in ad3552r_hs_probe()
493 indio_dev->num_channels = ARRAY_SIZE(ad3552r_hs_channels); in ad3552r_hs_probe()
494 indio_dev->info = &ad3552r_hs_info; in ad3552r_hs_probe()
496 ret = devm_iio_backend_request_buffer(&pdev->dev, st->back, indio_dev); in ad3552r_hs_probe()
504 return devm_iio_device_register(&pdev->dev, indio_dev); in ad3552r_hs_probe()
523 .name = "ad3552r-hs",
532 MODULE_DESCRIPTION("AD3552R Driver - High Speed version");