diff options
author | Jinyoung Park <jinyoungp@nvidia.com> | 2013-06-13 16:08:08 +0900 |
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committer | Harshada Kale <hkale@nvidia.com> | 2013-06-17 01:03:17 -0700 |
commit | a04e265f6c8ef186c00e01d293d7511ebe811a04 (patch) | |
tree | 98feca34604cc58332c94bb5e9a729a25d2e3ff9 /include | |
parent | 73b717456cc31a27e9ec803bfe08669e2eac723a (diff) |
iio: Move iio headers to inclulde/linux/iio
Moved iio headers to include/linux/iio to refer out of iio.
Bug 1287901
Change-Id: Ie73ebe5886e1951cdf8b6a2452769608bd77e59a
Signed-off-by: Jinyoung Park <jinyoungp@nvidia.com>
Reviewed-on: http://git-master/r/238541
Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com>
GVS: Gerrit_Virtual_Submit
Diffstat (limited to 'include')
-rw-r--r-- | include/linux/iio/consumer.h | 96 | ||||
-rw-r--r-- | include/linux/iio/machine.h | 24 | ||||
-rw-r--r-- | include/linux/iio/types.h | 53 |
3 files changed, 173 insertions, 0 deletions
diff --git a/include/linux/iio/consumer.h b/include/linux/iio/consumer.h new file mode 100644 index 000000000000..1a15e560a5a1 --- /dev/null +++ b/include/linux/iio/consumer.h @@ -0,0 +1,96 @@ +/* + * Industrial I/O in kernel consumer interface + * + * Copyright (c) 2011 Jonathan Cameron + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + */ +#ifndef _IIO_INKERN_CONSUMER_H_ +#define _IIO_INKERN_CONSUMER_H +#include <linux/iio/types.h> + +struct iio_dev; +struct iio_chan_spec; + +/** + * struct iio_channel - everything needed for a consumer to use a channel + * @indio_dev: Device on which the channel exists. + * @channel: Full description of the channel. + */ +struct iio_channel { + struct iio_dev *indio_dev; + const struct iio_chan_spec *channel; +}; + +/** + * iio_channel_get() - get description of all that is needed to access channel. + * @name: Unique name of the device as provided in the iio_map + * with which the desired provider to consumer mapping + * was registered. + * @consumer_channel: Unique name to identify the channel on the consumer + * side. This typically describes the channels use within + * the consumer. E.g. 'battery_voltage' + */ +struct iio_channel *iio_st_channel_get(const char *name, + const char *consumer_channel); + +/** + * iio_st_channel_release() - release channels obtained via iio_st_channel_get + * @chan: The channel to be released. + */ +void iio_st_channel_release(struct iio_channel *chan); + +/** + * iio_st_channel_get_all() - get all channels associated with a client + * @name: name of consumer device. + * + * Returns an array of iio_channel structures terminated with one with + * null iio_dev pointer. + * This function is used by fairly generic consumers to get all the + * channels registered as having this consumer. + */ +struct iio_channel *iio_st_channel_get_all(const char *name); + +/** + * iio_st_channel_release_all() - reverse iio_st_get_all + * @chan: Array of channels to be released. + */ +void iio_st_channel_release_all(struct iio_channel *chan); + +/** + * iio_st_read_channel_raw() - read from a given channel + * @channel: The channel being queried. + * @val: Value read back. + * + * Note raw reads from iio channels are in adc counts and hence + * scale will need to be applied if standard units required. + */ +int iio_st_read_channel_raw(struct iio_channel *chan, + int *val); + +/** + * iio_st_get_channel_type() - get the type of a channel + * @channel: The channel being queried. + * @type: The type of the channel. + * + * returns the enum iio_chan_type of the channel + */ +int iio_st_get_channel_type(struct iio_channel *channel, + enum iio_chan_type *type); + +/** + * iio_st_read_channel_scale() - read the scale value for a channel + * @channel: The channel being queried. + * @val: First part of value read back. + * @val2: Second part of value read back. + * + * Note returns a description of what is in val and val2, such + * as IIO_VAL_INT_PLUS_MICRO telling us we have a value of val + * + val2/1e6 + */ +int iio_st_read_channel_scale(struct iio_channel *chan, int *val, + int *val2); + +#endif diff --git a/include/linux/iio/machine.h b/include/linux/iio/machine.h new file mode 100644 index 000000000000..0b1f19bfdc44 --- /dev/null +++ b/include/linux/iio/machine.h @@ -0,0 +1,24 @@ +/* + * Industrial I/O in kernel access map definitions for board files. + * + * Copyright (c) 2011 Jonathan Cameron + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + */ + +/** + * struct iio_map - description of link between consumer and device channels + * @adc_channel_label: Label used to identify the channel on the provider. + * This is matched against the datasheet_name element + * of struct iio_chan_spec. + * @consumer_dev_name: Name to uniquely identify the consumer device. + * @consumer_channel: Unique name used to idenitify the channel on the + * consumer side. + */ +struct iio_map { + const char *adc_channel_label; + const char *consumer_dev_name; + const char *consumer_channel; +}; diff --git a/include/linux/iio/types.h b/include/linux/iio/types.h new file mode 100644 index 000000000000..0c3213666901 --- /dev/null +++ b/include/linux/iio/types.h @@ -0,0 +1,53 @@ +/* industrial I/O data types needed both in and out of kernel + * + * Copyright (c) 2008 Jonathan Cameron + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + */ + +#ifndef _IIO_TYPES_H_ +#define _IIO_TYPES_H_ + +enum iio_chan_type { + /* real channel types */ + IIO_VOLTAGE, + IIO_CURRENT, + IIO_POWER, + IIO_ACCEL, + IIO_ANGL_VEL, + IIO_MAGN, + IIO_LIGHT, + IIO_INTENSITY, + IIO_PROXIMITY, + IIO_TEMP, + IIO_INCLI, + IIO_ROT, + IIO_ANGL, + IIO_TIMESTAMP, + IIO_CAPACITANCE, +}; + +enum iio_modifier { + IIO_NO_MOD, + IIO_MOD_X, + IIO_MOD_Y, + IIO_MOD_Z, + IIO_MOD_X_AND_Y, + IIO_MOD_X_AND_Z, + IIO_MOD_Y_AND_Z, + IIO_MOD_X_AND_Y_AND_Z, + IIO_MOD_X_OR_Y, + IIO_MOD_X_OR_Z, + IIO_MOD_Y_OR_Z, + IIO_MOD_X_OR_Y_OR_Z, + IIO_MOD_LIGHT_BOTH, + IIO_MOD_LIGHT_IR, +}; + +#define IIO_VAL_INT 1 +#define IIO_VAL_INT_PLUS_MICRO 2 +#define IIO_VAL_INT_PLUS_NANO 3 + +#endif /* _IIO_TYPES_H_ */ |