Lines Matching +full:1 +full:- +full:channel
1 // SPDX-License-Identifier: GPL-2.0
4 * TI ADC081S/ADC101S/ADC121S 8/10/12-bit SPI ADC driver
31 struct iio_chan_spec channel[2]; member
80 if (!st->convst_gpio) in ad7091_convst()
83 gpiod_set_value(st->convst_gpio, 0); in ad7091_convst()
84 udelay(1); /* CONVST pulse width: 10 ns min */ in ad7091_convst()
85 gpiod_set_value(st->convst_gpio, 1); in ad7091_convst()
86 udelay(1); /* Conversion time: 650 ns max */ in ad7091_convst()
92 struct iio_dev *indio_dev = pf->indio_dev; in ad7476_trigger_handler()
98 b_sent = spi_sync(st->spi, &st->msg); in ad7476_trigger_handler()
102 iio_push_to_buffers_with_ts(indio_dev, st->data, sizeof(st->data), in ad7476_trigger_handler()
105 iio_trigger_notify_done(indio_dev->trig); in ad7476_trigger_handler()
113 spi_read(st->spi, st->data, 1); in ad7091_reset()
122 ret = spi_sync(st->spi, &st->msg); in ad7476_scan_direct()
126 return be16_to_cpup((__be16 *)st->data); in ad7476_scan_direct()
142 return -EBUSY; in ad7476_read_raw()
148 *val = (ret >> st->chip_info->channel[0].scan_type.shift) & in ad7476_read_raw()
149 GENMASK(st->chip_info->channel[0].scan_type.realbits - 1, 0); in ad7476_read_raw()
152 if (st->ref_reg) { in ad7476_read_raw()
153 scale_uv = regulator_get_voltage(st->ref_reg); in ad7476_read_raw()
157 scale_uv = st->chip_info->int_vref_uv; in ad7476_read_raw()
160 *val2 = chan->scan_type.realbits; in ad7476_read_raw()
163 return -EINVAL; in ad7476_read_raw()
169 .indexed = 1, \
181 #define ADC081S_CHAN(bits) _AD7476_CHAN((bits), 12 - (bits), \
183 #define AD7476_CHAN(bits) _AD7476_CHAN((bits), 13 - (bits), \
185 #define AD7940_CHAN(bits) _AD7476_CHAN((bits), 15 - (bits), \
187 #define AD7091R_CHAN(bits) _AD7476_CHAN((bits), 16 - (bits), 0)
188 #define AD7091R_CONVST_CHAN(bits) _AD7476_CHAN((bits), 16 - (bits), \
190 #define ADS786X_CHAN(bits) _AD7476_CHAN((bits), 12 - (bits), \
195 .channel[0] = AD7091R_CHAN(12),
196 .channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
198 .convst_channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
202 .channel[0] = AD7091R_CHAN(12),
203 .channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
205 .convst_channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
211 .channel[0] = AD7940_CHAN(10),
212 .channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
216 .channel[0] = AD7940_CHAN(12),
217 .channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
221 .channel[0] = AD7940_CHAN(12),
222 .channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
225 .channel[0] = AD7940_CHAN(10),
226 .channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
229 .channel[0] = AD7940_CHAN(8),
230 .channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
233 .channel[0] = AD7476_CHAN(12),
234 .channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
237 .channel[0] = AD7476_CHAN(10),
238 .channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
241 .channel[0] = AD7476_CHAN(8),
242 .channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
245 .channel[0] = AD7476_CHAN(12),
246 .channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
251 .channel[0] = AD7476_CHAN(12),
252 .channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
257 .channel[0] = AD7940_CHAN(14),
258 .channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
261 .channel[0] = ADC081S_CHAN(8),
262 .channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
265 .channel[0] = ADC081S_CHAN(10),
266 .channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
269 .channel[0] = ADC081S_CHAN(12),
270 .channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
273 .channel[0] = ADS786X_CHAN(12),
274 .channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
277 .channel[0] = ADS786X_CHAN(10),
278 .channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
281 .channel[0] = ADS786X_CHAN(8),
282 .channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
285 .channel[0] = AD7940_CHAN(14),
286 .channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
309 indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); in ad7476_probe()
311 return -ENOMEM; in ad7476_probe()
314 st->chip_info = in ad7476_probe()
315 &ad7476_chip_info_tbl[spi_get_device_id(spi)->driver_data]; in ad7476_probe()
317 reg = devm_regulator_get(&spi->dev, "vcc"); in ad7476_probe()
325 ret = devm_add_action_or_reset(&spi->dev, ad7476_reg_disable, reg); in ad7476_probe()
330 if (!st->chip_info->int_vref_uv) in ad7476_probe()
331 st->ref_reg = reg; in ad7476_probe()
333 if (st->chip_info->has_vref) { in ad7476_probe()
336 if (st->chip_info->int_vref_uv) { in ad7476_probe()
337 reg = devm_regulator_get_optional(&spi->dev, "vref"); in ad7476_probe()
338 if (IS_ERR(reg) && (PTR_ERR(reg) != -ENODEV)) in ad7476_probe()
341 reg = devm_regulator_get(&spi->dev, "vref"); in ad7476_probe()
351 ret = devm_add_action_or_reset(&spi->dev, in ad7476_probe()
356 st->ref_reg = reg; in ad7476_probe()
365 st->ref_reg = NULL; in ad7476_probe()
369 if (st->chip_info->has_vdrive) { in ad7476_probe()
370 ret = devm_regulator_get_enable(&spi->dev, "vdrive"); in ad7476_probe()
375 st->convst_gpio = devm_gpiod_get_optional(&spi->dev, in ad7476_probe()
376 "adi,conversion-start", in ad7476_probe()
378 if (IS_ERR(st->convst_gpio)) in ad7476_probe()
379 return PTR_ERR(st->convst_gpio); in ad7476_probe()
381 st->spi = spi; in ad7476_probe()
383 indio_dev->name = spi_get_device_id(spi)->name; in ad7476_probe()
384 indio_dev->modes = INDIO_DIRECT_MODE; in ad7476_probe()
385 indio_dev->channels = st->chip_info->channel; in ad7476_probe()
386 indio_dev->num_channels = 2; in ad7476_probe()
387 indio_dev->info = &ad7476_info; in ad7476_probe()
389 if (st->convst_gpio) in ad7476_probe()
390 indio_dev->channels = st->chip_info->convst_channel; in ad7476_probe()
393 st->xfer.rx_buf = &st->data; in ad7476_probe()
394 st->xfer.len = st->chip_info->channel[0].scan_type.storagebits / 8; in ad7476_probe()
396 spi_message_init(&st->msg); in ad7476_probe()
397 spi_message_add_tail(&st->xfer, &st->msg); in ad7476_probe()
399 ret = devm_iio_triggered_buffer_setup(&spi->dev, indio_dev, NULL, in ad7476_probe()
404 if (st->chip_info->reset) in ad7476_probe()
405 st->chip_info->reset(st); in ad7476_probe()
407 return devm_iio_device_register(&spi->dev, indio_dev); in ad7476_probe()
445 { "ltc2314-14", ID_LTC2314_14 },
460 MODULE_DESCRIPTION("Analog Devices AD7476 and similar 1-channel ADCs");