Lines Matching +full:chan +full:- +full:name
1 // SPDX-License-Identifier: GPL-2.0-only
39 ret = -ENOMEM; in iio_map_array_register()
42 mapi->map = &maps[i]; in iio_map_array_register()
43 mapi->indio_dev = indio_dev; in iio_map_array_register()
44 list_add_tail(&mapi->l, &iio_map_list); in iio_map_array_register()
60 int ret = -ENODEV; in iio_map_array_unregister()
65 if (indio_dev == mapi->indio_dev) { in iio_map_array_unregister()
66 list_del(&mapi->l); in iio_map_array_unregister()
77 *iio_chan_spec_from_name(const struct iio_dev *indio_dev, const char *name) in iio_chan_spec_from_name() argument
80 const struct iio_chan_spec *chan = NULL; in iio_chan_spec_from_name() local
82 for (i = 0; i < indio_dev->num_channels; i++) in iio_chan_spec_from_name()
83 if (indio_dev->channels[i].datasheet_name && in iio_chan_spec_from_name()
84 strcmp(name, indio_dev->channels[i].datasheet_name) == 0) { in iio_chan_spec_from_name()
85 chan = &indio_dev->channels[i]; in iio_chan_spec_from_name()
88 return chan; in iio_chan_spec_from_name()
95 return dev->of_node == data && dev->type == &iio_device_type; in iio_dev_node_match()
99 * __of_iio_simple_xlate - translate iiospec to the IIO channel index
111 if (!iiospec->args_count) in __of_iio_simple_xlate()
114 if (iiospec->args[0] >= indio_dev->num_channels) { in __of_iio_simple_xlate()
115 dev_err(&indio_dev->dev, "invalid channel index %u\n", in __of_iio_simple_xlate()
116 iiospec->args[0]); in __of_iio_simple_xlate()
117 return -EINVAL; in __of_iio_simple_xlate()
120 return iiospec->args[0]; in __of_iio_simple_xlate()
131 err = of_parse_phandle_with_args(np, "io-channels", in __of_iio_channel_get()
132 "#io-channel-cells", in __of_iio_channel_get()
141 return -EPROBE_DEFER; in __of_iio_channel_get()
144 channel->indio_dev = indio_dev; in __of_iio_channel_get()
145 if (indio_dev->info->of_xlate) in __of_iio_channel_get()
146 index = indio_dev->info->of_xlate(indio_dev, &iiospec); in __of_iio_channel_get()
151 channel->channel = &indio_dev->channels[index]; in __of_iio_channel_get()
166 return ERR_PTR(-EINVAL); in of_iio_channel_get()
170 return ERR_PTR(-ENOMEM); in of_iio_channel_get()
184 const char *name) in of_iio_channel_get_by_name() argument
186 struct iio_channel *chan = NULL; in of_iio_channel_get_by_name() local
193 * For named iio channels, first look up the name in the in of_iio_channel_get_by_name()
194 * "io-channel-names" property. If it cannot be found, the in of_iio_channel_get_by_name()
198 if (name) in of_iio_channel_get_by_name()
199 index = of_property_match_string(np, "io-channel-names", in of_iio_channel_get_by_name()
200 name); in of_iio_channel_get_by_name()
201 chan = of_iio_channel_get(np, index); in of_iio_channel_get_by_name()
202 if (!IS_ERR(chan) || PTR_ERR(chan) == -EPROBE_DEFER) in of_iio_channel_get_by_name()
204 else if (name && index >= 0) { in of_iio_channel_get_by_name()
206 np, name ? name : "", index); in of_iio_channel_get_by_name()
212 * If the parent node has a "io-channel-ranges" property, in of_iio_channel_get_by_name()
215 np = np->parent; in of_iio_channel_get_by_name()
216 if (np && !of_get_property(np, "io-channel-ranges", NULL)) in of_iio_channel_get_by_name()
220 return chan; in of_iio_channel_get_by_name()
230 ret = of_parse_phandle_with_args(dev->of_node, in of_iio_channel_get_all()
231 "io-channels", in of_iio_channel_get_all()
232 "#io-channel-cells", in of_iio_channel_get_all()
244 return ERR_PTR(-ENOMEM); in of_iio_channel_get_all()
248 ret = __of_iio_channel_get(&chans[mapind], dev->of_node, in of_iio_channel_get_all()
265 of_iio_channel_get_by_name(struct device_node *np, const char *name) in of_iio_channel_get_by_name() argument
277 static struct iio_channel *iio_channel_get_sys(const char *name, in iio_channel_get_sys() argument
284 if (name == NULL && channel_name == NULL) in iio_channel_get_sys()
285 return ERR_PTR(-ENODEV); in iio_channel_get_sys()
290 if ((name && strcmp(name, c_i->map->consumer_dev_name) != 0) || in iio_channel_get_sys()
292 strcmp(channel_name, c_i->map->consumer_channel) != 0)) in iio_channel_get_sys()
295 iio_device_get(c->indio_dev); in iio_channel_get_sys()
300 return ERR_PTR(-ENODEV); in iio_channel_get_sys()
304 err = -ENOMEM; in iio_channel_get_sys()
308 channel->indio_dev = c->indio_dev; in iio_channel_get_sys()
310 if (c->map->adc_channel_label) { in iio_channel_get_sys()
311 channel->channel = in iio_channel_get_sys()
312 iio_chan_spec_from_name(channel->indio_dev, in iio_channel_get_sys()
313 c->map->adc_channel_label); in iio_channel_get_sys()
315 if (channel->channel == NULL) { in iio_channel_get_sys()
316 err = -EINVAL; in iio_channel_get_sys()
326 iio_device_put(c->indio_dev); in iio_channel_get_sys()
333 const char *name = dev ? dev_name(dev) : NULL; in iio_channel_get() local
337 channel = of_iio_channel_get_by_name(dev->of_node, in iio_channel_get()
343 return iio_channel_get_sys(name, channel_name); in iio_channel_get()
351 iio_device_put(channel->indio_dev); in iio_channel_release()
370 return ERR_PTR(-ENOMEM); in devm_iio_channel_get()
387 const char *name; in iio_channel_get_all() local
395 return ERR_PTR(-EINVAL); in iio_channel_get_all()
401 name = dev_name(dev); in iio_channel_get_all()
406 if (name && strcmp(name, c->map->consumer_dev_name) != 0) in iio_channel_get_all()
412 ret = -ENODEV; in iio_channel_get_all()
419 ret = -ENOMEM; in iio_channel_get_all()
425 if (name && strcmp(name, c->map->consumer_dev_name) != 0) in iio_channel_get_all()
427 chans[mapind].indio_dev = c->indio_dev; in iio_channel_get_all()
428 chans[mapind].data = c->map->consumer_data; in iio_channel_get_all()
431 c->map->adc_channel_label); in iio_channel_get_all()
433 ret = -EINVAL; in iio_channel_get_all()
440 ret = -ENODEV; in iio_channel_get_all()
460 struct iio_channel *chan = &channels[0]; in iio_channel_release_all() local
462 while (chan->indio_dev) { in iio_channel_release_all()
463 iio_device_put(chan->indio_dev); in iio_channel_release_all()
464 chan++; in iio_channel_release_all()
483 return ERR_PTR(-ENOMEM); in devm_iio_channel_get_all()
498 static int iio_channel_read(struct iio_channel *chan, int *val, int *val2, in iio_channel_read() argument
509 if (!iio_channel_has_info(chan->channel, info)) in iio_channel_read()
510 return -EINVAL; in iio_channel_read()
512 if (chan->indio_dev->info->read_raw_multi) { in iio_channel_read()
513 ret = chan->indio_dev->info->read_raw_multi(chan->indio_dev, in iio_channel_read()
514 chan->channel, INDIO_MAX_RAW_ELEMENTS, in iio_channel_read()
519 ret = chan->indio_dev->info->read_raw(chan->indio_dev, in iio_channel_read()
520 chan->channel, val, val2, info); in iio_channel_read()
525 int iio_read_channel_raw(struct iio_channel *chan, int *val) in iio_read_channel_raw() argument
529 mutex_lock(&chan->indio_dev->info_exist_lock); in iio_read_channel_raw()
530 if (chan->indio_dev->info == NULL) { in iio_read_channel_raw()
531 ret = -ENODEV; in iio_read_channel_raw()
535 ret = iio_channel_read(chan, val, NULL, IIO_CHAN_INFO_RAW); in iio_read_channel_raw()
537 mutex_unlock(&chan->indio_dev->info_exist_lock); in iio_read_channel_raw()
543 int iio_read_channel_average_raw(struct iio_channel *chan, int *val) in iio_read_channel_average_raw() argument
547 mutex_lock(&chan->indio_dev->info_exist_lock); in iio_read_channel_average_raw()
548 if (chan->indio_dev->info == NULL) { in iio_read_channel_average_raw()
549 ret = -ENODEV; in iio_read_channel_average_raw()
553 ret = iio_channel_read(chan, val, NULL, IIO_CHAN_INFO_AVERAGE_RAW); in iio_read_channel_average_raw()
555 mutex_unlock(&chan->indio_dev->info_exist_lock); in iio_read_channel_average_raw()
561 static int iio_convert_raw_to_processed_unlocked(struct iio_channel *chan, in iio_convert_raw_to_processed_unlocked() argument
568 ret = iio_channel_read(chan, &offset, NULL, IIO_CHAN_INFO_OFFSET); in iio_convert_raw_to_processed_unlocked()
572 scale_type = iio_channel_read(chan, &scale_val, &scale_val2, in iio_convert_raw_to_processed_unlocked()
589 *processed = -raw64 * scale_val; in iio_convert_raw_to_processed_unlocked()
597 *processed = -raw64 * scale_val; in iio_convert_raw_to_processed_unlocked()
611 return -EINVAL; in iio_convert_raw_to_processed_unlocked()
617 int iio_convert_raw_to_processed(struct iio_channel *chan, int raw, in iio_convert_raw_to_processed() argument
622 mutex_lock(&chan->indio_dev->info_exist_lock); in iio_convert_raw_to_processed()
623 if (chan->indio_dev->info == NULL) { in iio_convert_raw_to_processed()
624 ret = -ENODEV; in iio_convert_raw_to_processed()
628 ret = iio_convert_raw_to_processed_unlocked(chan, raw, processed, in iio_convert_raw_to_processed()
631 mutex_unlock(&chan->indio_dev->info_exist_lock); in iio_convert_raw_to_processed()
637 int iio_read_channel_attribute(struct iio_channel *chan, int *val, int *val2, in iio_read_channel_attribute() argument
642 mutex_lock(&chan->indio_dev->info_exist_lock); in iio_read_channel_attribute()
643 if (chan->indio_dev->info == NULL) { in iio_read_channel_attribute()
644 ret = -ENODEV; in iio_read_channel_attribute()
648 ret = iio_channel_read(chan, val, val2, attribute); in iio_read_channel_attribute()
650 mutex_unlock(&chan->indio_dev->info_exist_lock); in iio_read_channel_attribute()
656 int iio_read_channel_offset(struct iio_channel *chan, int *val, int *val2) in iio_read_channel_offset() argument
658 return iio_read_channel_attribute(chan, val, val2, IIO_CHAN_INFO_OFFSET); in iio_read_channel_offset()
662 int iio_read_channel_processed(struct iio_channel *chan, int *val) in iio_read_channel_processed() argument
666 mutex_lock(&chan->indio_dev->info_exist_lock); in iio_read_channel_processed()
667 if (chan->indio_dev->info == NULL) { in iio_read_channel_processed()
668 ret = -ENODEV; in iio_read_channel_processed()
672 if (iio_channel_has_info(chan->channel, IIO_CHAN_INFO_PROCESSED)) { in iio_read_channel_processed()
673 ret = iio_channel_read(chan, val, NULL, in iio_read_channel_processed()
676 ret = iio_channel_read(chan, val, NULL, IIO_CHAN_INFO_RAW); in iio_read_channel_processed()
679 ret = iio_convert_raw_to_processed_unlocked(chan, *val, val, 1); in iio_read_channel_processed()
683 mutex_unlock(&chan->indio_dev->info_exist_lock); in iio_read_channel_processed()
689 int iio_read_channel_scale(struct iio_channel *chan, int *val, int *val2) in iio_read_channel_scale() argument
691 return iio_read_channel_attribute(chan, val, val2, IIO_CHAN_INFO_SCALE); in iio_read_channel_scale()
695 static int iio_channel_read_avail(struct iio_channel *chan, in iio_channel_read_avail() argument
699 if (!iio_channel_has_available(chan->channel, info)) in iio_channel_read_avail()
700 return -EINVAL; in iio_channel_read_avail()
702 return chan->indio_dev->info->read_avail(chan->indio_dev, chan->channel, in iio_channel_read_avail()
706 int iio_read_avail_channel_attribute(struct iio_channel *chan, in iio_read_avail_channel_attribute() argument
712 mutex_lock(&chan->indio_dev->info_exist_lock); in iio_read_avail_channel_attribute()
713 if (!chan->indio_dev->info) { in iio_read_avail_channel_attribute()
714 ret = -ENODEV; in iio_read_avail_channel_attribute()
718 ret = iio_channel_read_avail(chan, vals, type, length, attribute); in iio_read_avail_channel_attribute()
720 mutex_unlock(&chan->indio_dev->info_exist_lock); in iio_read_avail_channel_attribute()
726 int iio_read_avail_channel_raw(struct iio_channel *chan, in iio_read_avail_channel_raw() argument
732 ret = iio_read_avail_channel_attribute(chan, vals, &type, length, in iio_read_avail_channel_raw()
737 ret = -EINVAL; in iio_read_avail_channel_raw()
743 static int iio_channel_read_max(struct iio_channel *chan, in iio_channel_read_max() argument
755 ret = iio_channel_read_avail(chan, &vals, type, &length, info); in iio_channel_read_max()
770 return -EINVAL; in iio_channel_read_max()
773 *val = vals[--length]; in iio_channel_read_max()
775 if (vals[--length] > *val) in iio_channel_read_max()
781 return -EINVAL; in iio_channel_read_max()
790 int iio_read_max_channel_raw(struct iio_channel *chan, int *val) in iio_read_max_channel_raw() argument
795 mutex_lock(&chan->indio_dev->info_exist_lock); in iio_read_max_channel_raw()
796 if (!chan->indio_dev->info) { in iio_read_max_channel_raw()
797 ret = -ENODEV; in iio_read_max_channel_raw()
801 ret = iio_channel_read_max(chan, val, NULL, &type, IIO_CHAN_INFO_RAW); in iio_read_max_channel_raw()
803 mutex_unlock(&chan->indio_dev->info_exist_lock); in iio_read_max_channel_raw()
809 int iio_get_channel_type(struct iio_channel *chan, enum iio_chan_type *type) in iio_get_channel_type() argument
814 mutex_lock(&chan->indio_dev->info_exist_lock); in iio_get_channel_type()
815 if (chan->indio_dev->info == NULL) { in iio_get_channel_type()
816 ret = -ENODEV; in iio_get_channel_type()
820 *type = chan->channel->type; in iio_get_channel_type()
822 mutex_unlock(&chan->indio_dev->info_exist_lock); in iio_get_channel_type()
828 static int iio_channel_write(struct iio_channel *chan, int val, int val2, in iio_channel_write() argument
831 return chan->indio_dev->info->write_raw(chan->indio_dev, in iio_channel_write()
832 chan->channel, val, val2, info); in iio_channel_write()
835 int iio_write_channel_attribute(struct iio_channel *chan, int val, int val2, in iio_write_channel_attribute() argument
840 mutex_lock(&chan->indio_dev->info_exist_lock); in iio_write_channel_attribute()
841 if (chan->indio_dev->info == NULL) { in iio_write_channel_attribute()
842 ret = -ENODEV; in iio_write_channel_attribute()
846 ret = iio_channel_write(chan, val, val2, attribute); in iio_write_channel_attribute()
848 mutex_unlock(&chan->indio_dev->info_exist_lock); in iio_write_channel_attribute()
854 int iio_write_channel_raw(struct iio_channel *chan, int val) in iio_write_channel_raw() argument
856 return iio_write_channel_attribute(chan, val, 0, IIO_CHAN_INFO_RAW); in iio_write_channel_raw()
860 unsigned int iio_get_channel_ext_info_count(struct iio_channel *chan) in iio_get_channel_ext_info_count() argument
865 if (!chan->channel->ext_info) in iio_get_channel_ext_info_count()
868 for (ext_info = chan->channel->ext_info; ext_info->name; ext_info++) in iio_get_channel_ext_info_count()
876 const struct iio_channel *chan, in iio_lookup_ext_info() argument
881 if (!chan->channel->ext_info) in iio_lookup_ext_info()
884 for (ext_info = chan->channel->ext_info; ext_info->name; ++ext_info) { in iio_lookup_ext_info()
885 if (!strcmp(attr, ext_info->name)) in iio_lookup_ext_info()
892 ssize_t iio_read_channel_ext_info(struct iio_channel *chan, in iio_read_channel_ext_info() argument
897 ext_info = iio_lookup_ext_info(chan, attr); in iio_read_channel_ext_info()
899 return -EINVAL; in iio_read_channel_ext_info()
901 return ext_info->read(chan->indio_dev, ext_info->private, in iio_read_channel_ext_info()
902 chan->channel, buf); in iio_read_channel_ext_info()
906 ssize_t iio_write_channel_ext_info(struct iio_channel *chan, const char *attr, in iio_write_channel_ext_info() argument
911 ext_info = iio_lookup_ext_info(chan, attr); in iio_write_channel_ext_info()
913 return -EINVAL; in iio_write_channel_ext_info()
915 return ext_info->write(chan->indio_dev, ext_info->private, in iio_write_channel_ext_info()
916 chan->channel, buf, len); in iio_write_channel_ext_info()