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()
145 channel->indio_dev = indio_dev; in __of_iio_channel_get()
146 if (indio_dev->info->of_xlate) in __of_iio_channel_get()
147 index = indio_dev->info->of_xlate(indio_dev, &iiospec); in __of_iio_channel_get()
153 channel->channel = &indio_dev->channels[index]; in __of_iio_channel_get()
168 return ERR_PTR(-EINVAL); in of_iio_channel_get()
172 return ERR_PTR(-ENOMEM); in of_iio_channel_get()
186 const char *name) in of_iio_channel_get_by_name() argument
188 struct iio_channel *chan = NULL; in of_iio_channel_get_by_name() local
195 * For named iio channels, first look up the name in the in of_iio_channel_get_by_name()
196 * "io-channel-names" property. If it cannot be found, the in of_iio_channel_get_by_name()
200 if (name) in of_iio_channel_get_by_name()
201 index = of_property_match_string(np, "io-channel-names", in of_iio_channel_get_by_name()
202 name); in of_iio_channel_get_by_name()
203 chan = of_iio_channel_get(np, index); in of_iio_channel_get_by_name()
204 if (!IS_ERR(chan) || PTR_ERR(chan) == -EPROBE_DEFER) in of_iio_channel_get_by_name()
206 else if (name && index >= 0) { in of_iio_channel_get_by_name()
208 np, name ? name : "", index); in of_iio_channel_get_by_name()
214 * If the parent node has a "io-channel-ranges" property, in of_iio_channel_get_by_name()
217 np = np->parent; in of_iio_channel_get_by_name()
218 if (np && !of_get_property(np, "io-channel-ranges", NULL)) in of_iio_channel_get_by_name()
222 return chan; in of_iio_channel_get_by_name()
232 ret = of_parse_phandle_with_args(dev->of_node, in of_iio_channel_get_all()
233 "io-channels", in of_iio_channel_get_all()
234 "#io-channel-cells", in of_iio_channel_get_all()
246 return ERR_PTR(-ENOMEM); in of_iio_channel_get_all()
250 ret = __of_iio_channel_get(&chans[mapind], dev->of_node, in of_iio_channel_get_all()
267 of_iio_channel_get_by_name(struct device_node *np, const char *name) in of_iio_channel_get_by_name() argument
279 static struct iio_channel *iio_channel_get_sys(const char *name, in iio_channel_get_sys() argument
286 if (name == NULL && channel_name == NULL) in iio_channel_get_sys()
287 return ERR_PTR(-ENODEV); in iio_channel_get_sys()
292 if ((name && strcmp(name, c_i->map->consumer_dev_name) != 0) || in iio_channel_get_sys()
294 strcmp(channel_name, c_i->map->consumer_channel) != 0)) in iio_channel_get_sys()
297 iio_device_get(c->indio_dev); in iio_channel_get_sys()
302 return ERR_PTR(-ENODEV); in iio_channel_get_sys()
306 err = -ENOMEM; in iio_channel_get_sys()
310 channel->indio_dev = c->indio_dev; in iio_channel_get_sys()
312 if (c->map->adc_channel_label) { in iio_channel_get_sys()
313 channel->channel = in iio_channel_get_sys()
314 iio_chan_spec_from_name(channel->indio_dev, in iio_channel_get_sys()
315 c->map->adc_channel_label); in iio_channel_get_sys()
317 if (channel->channel == NULL) { in iio_channel_get_sys()
318 err = -EINVAL; in iio_channel_get_sys()
328 iio_device_put(c->indio_dev); in iio_channel_get_sys()
335 const char *name = dev ? dev_name(dev) : NULL; in iio_channel_get() local
339 channel = of_iio_channel_get_by_name(dev->of_node, in iio_channel_get()
345 return iio_channel_get_sys(name, channel_name); in iio_channel_get()
353 iio_device_put(channel->indio_dev); in iio_channel_release()
372 return ERR_PTR(-ENOMEM); in devm_iio_channel_get()
389 const char *name; in iio_channel_get_all() local
397 return ERR_PTR(-EINVAL); in iio_channel_get_all()
403 name = dev_name(dev); in iio_channel_get_all()
408 if (name && strcmp(name, c->map->consumer_dev_name) != 0) in iio_channel_get_all()
414 ret = -ENODEV; in iio_channel_get_all()
421 ret = -ENOMEM; in iio_channel_get_all()
427 if (name && strcmp(name, c->map->consumer_dev_name) != 0) in iio_channel_get_all()
429 chans[mapind].indio_dev = c->indio_dev; in iio_channel_get_all()
430 chans[mapind].data = c->map->consumer_data; in iio_channel_get_all()
433 c->map->adc_channel_label); in iio_channel_get_all()
435 ret = -EINVAL; in iio_channel_get_all()
442 ret = -ENODEV; in iio_channel_get_all()
462 struct iio_channel *chan = &channels[0]; in iio_channel_release_all() local
464 while (chan->indio_dev) { in iio_channel_release_all()
465 iio_device_put(chan->indio_dev); in iio_channel_release_all()
466 chan++; in iio_channel_release_all()
485 return ERR_PTR(-ENOMEM); in devm_iio_channel_get_all()
500 static int iio_channel_read(struct iio_channel *chan, int *val, int *val2, in iio_channel_read() argument
503 const struct iio_info *iio_info = chan->indio_dev->info; in iio_channel_read()
512 if (!iio_channel_has_info(chan->channel, info)) in iio_channel_read()
513 return -EINVAL; in iio_channel_read()
515 if (iio_info->read_raw_multi) { in iio_channel_read()
516 ret = iio_info->read_raw_multi(chan->indio_dev, in iio_channel_read()
517 chan->channel, in iio_channel_read()
522 } else if (iio_info->read_raw) { in iio_channel_read()
523 ret = iio_info->read_raw(chan->indio_dev, in iio_channel_read()
524 chan->channel, val, val2, info); in iio_channel_read()
526 return -EINVAL; in iio_channel_read()
532 int iio_read_channel_raw(struct iio_channel *chan, int *val) in iio_read_channel_raw() argument
536 mutex_lock(&chan->indio_dev->info_exist_lock); in iio_read_channel_raw()
537 if (chan->indio_dev->info == NULL) { in iio_read_channel_raw()
538 ret = -ENODEV; in iio_read_channel_raw()
542 ret = iio_channel_read(chan, val, NULL, IIO_CHAN_INFO_RAW); in iio_read_channel_raw()
544 mutex_unlock(&chan->indio_dev->info_exist_lock); in iio_read_channel_raw()
550 int iio_read_channel_average_raw(struct iio_channel *chan, int *val) in iio_read_channel_average_raw() argument
554 mutex_lock(&chan->indio_dev->info_exist_lock); in iio_read_channel_average_raw()
555 if (chan->indio_dev->info == NULL) { in iio_read_channel_average_raw()
556 ret = -ENODEV; in iio_read_channel_average_raw()
560 ret = iio_channel_read(chan, val, NULL, IIO_CHAN_INFO_AVERAGE_RAW); in iio_read_channel_average_raw()
562 mutex_unlock(&chan->indio_dev->info_exist_lock); in iio_read_channel_average_raw()
568 static int iio_convert_raw_to_processed_unlocked(struct iio_channel *chan, in iio_convert_raw_to_processed_unlocked() argument
575 offset_type = iio_channel_read(chan, &offset_val, &offset_val2, in iio_convert_raw_to_processed_unlocked()
595 return -EINVAL; in iio_convert_raw_to_processed_unlocked()
601 scale_type = iio_channel_read(chan, &scale_val, &scale_val2, in iio_convert_raw_to_processed_unlocked()
618 *processed = -raw64 * scale_val; in iio_convert_raw_to_processed_unlocked()
626 *processed = -raw64 * scale_val; in iio_convert_raw_to_processed_unlocked()
640 return -EINVAL; in iio_convert_raw_to_processed_unlocked()
646 int iio_convert_raw_to_processed(struct iio_channel *chan, int raw, in iio_convert_raw_to_processed() argument
651 mutex_lock(&chan->indio_dev->info_exist_lock); in iio_convert_raw_to_processed()
652 if (chan->indio_dev->info == NULL) { in iio_convert_raw_to_processed()
653 ret = -ENODEV; in iio_convert_raw_to_processed()
657 ret = iio_convert_raw_to_processed_unlocked(chan, raw, processed, in iio_convert_raw_to_processed()
660 mutex_unlock(&chan->indio_dev->info_exist_lock); in iio_convert_raw_to_processed()
666 int iio_read_channel_attribute(struct iio_channel *chan, int *val, int *val2, in iio_read_channel_attribute() argument
671 mutex_lock(&chan->indio_dev->info_exist_lock); in iio_read_channel_attribute()
672 if (chan->indio_dev->info == NULL) { in iio_read_channel_attribute()
673 ret = -ENODEV; in iio_read_channel_attribute()
677 ret = iio_channel_read(chan, val, val2, attribute); in iio_read_channel_attribute()
679 mutex_unlock(&chan->indio_dev->info_exist_lock); in iio_read_channel_attribute()
685 int iio_read_channel_offset(struct iio_channel *chan, int *val, int *val2) in iio_read_channel_offset() argument
687 return iio_read_channel_attribute(chan, val, val2, IIO_CHAN_INFO_OFFSET); in iio_read_channel_offset()
691 int iio_read_channel_processed(struct iio_channel *chan, int *val) in iio_read_channel_processed() argument
695 mutex_lock(&chan->indio_dev->info_exist_lock); in iio_read_channel_processed()
696 if (chan->indio_dev->info == NULL) { in iio_read_channel_processed()
697 ret = -ENODEV; in iio_read_channel_processed()
701 if (iio_channel_has_info(chan->channel, IIO_CHAN_INFO_PROCESSED)) { in iio_read_channel_processed()
702 ret = iio_channel_read(chan, val, NULL, in iio_read_channel_processed()
705 ret = iio_channel_read(chan, val, NULL, IIO_CHAN_INFO_RAW); in iio_read_channel_processed()
708 ret = iio_convert_raw_to_processed_unlocked(chan, *val, val, 1); in iio_read_channel_processed()
712 mutex_unlock(&chan->indio_dev->info_exist_lock); in iio_read_channel_processed()
718 int iio_read_channel_scale(struct iio_channel *chan, int *val, int *val2) in iio_read_channel_scale() argument
720 return iio_read_channel_attribute(chan, val, val2, IIO_CHAN_INFO_SCALE); in iio_read_channel_scale()
724 static int iio_channel_read_avail(struct iio_channel *chan, in iio_channel_read_avail() argument
728 const struct iio_info *iio_info = chan->indio_dev->info; in iio_channel_read_avail()
730 if (!iio_channel_has_available(chan->channel, info)) in iio_channel_read_avail()
731 return -EINVAL; in iio_channel_read_avail()
733 if (iio_info->read_avail) in iio_channel_read_avail()
734 return iio_info->read_avail(chan->indio_dev, chan->channel, in iio_channel_read_avail()
736 return -EINVAL; in iio_channel_read_avail()
739 int iio_read_avail_channel_attribute(struct iio_channel *chan, in iio_read_avail_channel_attribute() argument
745 mutex_lock(&chan->indio_dev->info_exist_lock); in iio_read_avail_channel_attribute()
746 if (!chan->indio_dev->info) { in iio_read_avail_channel_attribute()
747 ret = -ENODEV; in iio_read_avail_channel_attribute()
751 ret = iio_channel_read_avail(chan, vals, type, length, attribute); in iio_read_avail_channel_attribute()
753 mutex_unlock(&chan->indio_dev->info_exist_lock); in iio_read_avail_channel_attribute()
759 int iio_read_avail_channel_raw(struct iio_channel *chan, in iio_read_avail_channel_raw() argument
765 ret = iio_read_avail_channel_attribute(chan, vals, &type, length, in iio_read_avail_channel_raw()
770 ret = -EINVAL; in iio_read_avail_channel_raw()
776 static int iio_channel_read_max(struct iio_channel *chan, in iio_channel_read_max() argument
788 ret = iio_channel_read_avail(chan, &vals, type, &length, info); in iio_channel_read_max()
803 return -EINVAL; in iio_channel_read_max()
806 *val = vals[--length]; in iio_channel_read_max()
808 if (vals[--length] > *val) in iio_channel_read_max()
814 return -EINVAL; in iio_channel_read_max()
823 int iio_read_max_channel_raw(struct iio_channel *chan, int *val) in iio_read_max_channel_raw() argument
828 mutex_lock(&chan->indio_dev->info_exist_lock); in iio_read_max_channel_raw()
829 if (!chan->indio_dev->info) { in iio_read_max_channel_raw()
830 ret = -ENODEV; in iio_read_max_channel_raw()
834 ret = iio_channel_read_max(chan, val, NULL, &type, IIO_CHAN_INFO_RAW); in iio_read_max_channel_raw()
836 mutex_unlock(&chan->indio_dev->info_exist_lock); in iio_read_max_channel_raw()
842 int iio_get_channel_type(struct iio_channel *chan, enum iio_chan_type *type) in iio_get_channel_type() argument
847 mutex_lock(&chan->indio_dev->info_exist_lock); in iio_get_channel_type()
848 if (chan->indio_dev->info == NULL) { in iio_get_channel_type()
849 ret = -ENODEV; in iio_get_channel_type()
853 *type = chan->channel->type; in iio_get_channel_type()
855 mutex_unlock(&chan->indio_dev->info_exist_lock); in iio_get_channel_type()
861 static int iio_channel_write(struct iio_channel *chan, int val, int val2, in iio_channel_write() argument
864 const struct iio_info *iio_info = chan->indio_dev->info; in iio_channel_write()
866 if (iio_info->write_raw) in iio_channel_write()
867 return iio_info->write_raw(chan->indio_dev, in iio_channel_write()
868 chan->channel, val, val2, info); in iio_channel_write()
869 return -EINVAL; in iio_channel_write()
872 int iio_write_channel_attribute(struct iio_channel *chan, int val, int val2, in iio_write_channel_attribute() argument
877 mutex_lock(&chan->indio_dev->info_exist_lock); in iio_write_channel_attribute()
878 if (chan->indio_dev->info == NULL) { in iio_write_channel_attribute()
879 ret = -ENODEV; in iio_write_channel_attribute()
883 ret = iio_channel_write(chan, val, val2, attribute); in iio_write_channel_attribute()
885 mutex_unlock(&chan->indio_dev->info_exist_lock); in iio_write_channel_attribute()
891 int iio_write_channel_raw(struct iio_channel *chan, int val) in iio_write_channel_raw() argument
893 return iio_write_channel_attribute(chan, val, 0, IIO_CHAN_INFO_RAW); in iio_write_channel_raw()
897 unsigned int iio_get_channel_ext_info_count(struct iio_channel *chan) in iio_get_channel_ext_info_count() argument
902 if (!chan->channel->ext_info) in iio_get_channel_ext_info_count()
905 for (ext_info = chan->channel->ext_info; ext_info->name; ext_info++) in iio_get_channel_ext_info_count()
913 const struct iio_channel *chan, in iio_lookup_ext_info() argument
918 if (!chan->channel->ext_info) in iio_lookup_ext_info()
921 for (ext_info = chan->channel->ext_info; ext_info->name; ++ext_info) { in iio_lookup_ext_info()
922 if (!strcmp(attr, ext_info->name)) in iio_lookup_ext_info()
929 ssize_t iio_read_channel_ext_info(struct iio_channel *chan, in iio_read_channel_ext_info() argument
934 ext_info = iio_lookup_ext_info(chan, attr); in iio_read_channel_ext_info()
936 return -EINVAL; in iio_read_channel_ext_info()
938 return ext_info->read(chan->indio_dev, ext_info->private, in iio_read_channel_ext_info()
939 chan->channel, buf); in iio_read_channel_ext_info()
943 ssize_t iio_write_channel_ext_info(struct iio_channel *chan, const char *attr, in iio_write_channel_ext_info() argument
948 ext_info = iio_lookup_ext_info(chan, attr); in iio_write_channel_ext_info()
950 return -EINVAL; in iio_write_channel_ext_info()
952 return ext_info->write(chan->indio_dev, ext_info->private, in iio_write_channel_ext_info()
953 chan->channel, buf, len); in iio_write_channel_ext_info()