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Staging tree pull request for 3.5-rc1

Browse source 
Here is the big staging tree pull request for the 3.5-rc1 merge window.
 
 Loads of changes here, and we just narrowly added more lines than we
 added:
  622 files changed, 28356 insertions(+), 26059 deletions(-)
 
 But, good news is that there is a number of subsystems that moved out of
 the staging tree, to their respective "real" portions of the kernel.
 
 Code that moved out was:
 	- iio core code
 	- mei driver
 	- vme core and bridge drivers
 
 There was one broken network driver that moved into staging as a step
 before it is removed from the tree (pc300), and there was a few new
 drivers added to the tree:
 	- new iio drivers
 	- gdm72xx wimax USB driver
 	- ipack subsystem and 2 drivers
 
 All of the movements around have acks from the various subsystem
 maintainers, and all of this has been in the linux-next tree for a
 while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging tree changes from Greg Kroah-Hartman:
 "Here is the big staging tree pull request for the 3.5-rc1 merge
  window.

  Loads of changes here, and we just narrowly added more lines than we
  added:
   622 files changed, 28356 insertions(+), 26059 deletions(-)

  But, good news is that there is a number of subsystems that moved out
  of the staging tree, to their respective "real" portions of the
  kernel.

  Code that moved out was:
	- iio core code
	- mei driver
	- vme core and bridge drivers

  There was one broken network driver that moved into staging as a step
  before it is removed from the tree (pc300), and there was a few new
  drivers added to the tree:
	- new iio drivers
	- gdm72xx wimax USB driver
	- ipack subsystem and 2 drivers

  All of the movements around have acks from the various subsystem
  maintainers, and all of this has been in the linux-next tree for a
  while.

  Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"

Fixed up various trivial conflicts, along with a non-trivial one found
in -next and pointed out by Olof Johanssen: a clean - but incorrect -
merge of the arch/arm/boot/dts/at91sam9g20.dtsi file.  Fix up manually
as per Stephen Rothwell.

* tag 'staging-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (536 commits)
  Staging: bcm: Remove two unused variables from Adapter.h
  Staging: bcm: Removes the volatile type definition from Adapter.h
  Staging: bcm: Rename all "INT" to "int" in Adapter.h
  Staging: bcm: Fix warning: __packed vs. __attribute__((packed)) in Adapter.h
  Staging: bcm: Correctly format all comments in Adapter.h
  Staging: bcm: Fix all whitespace issues in Adapter.h
  Staging: bcm: Properly format braces in Adapter.h
  Staging: ipack/bridges/tpci200: remove unneeded casts
  Staging: ipack/bridges/tpci200: remove TPCI200_SHORTNAME constant
  Staging: ipack: remove board_name and bus_name fields from struct ipack_device
  Staging: ipack: improve the register of a bus and a device in the bus.
  staging: comedi: cleanup all the comedi_driver 'detach' functions
  staging: comedi: remove all 'default N' in Kconfig
  staging: line6/config.h: Delete unused header
  staging: gdm72xx depends on NET
  staging: gdm72xx: Set up parent link in sysfs for gdm72xx devices
  staging: drm/omap: initial dmabuf/prime import support
  staging: drm/omap: dmabuf/prime mmap support
  pstore/ram: Add ECC support
  pstore/ram: Switch to persistent_ram routines
  ...
This commit is contained in:
Linus Torvalds 2012-05-22 16:34:21 -07:00
commit fb09bafda6
611 changed files with 28159 additions and 25952 deletions
Download patch file Download diff file Expand all files Collapse all files

2
include/linux/Kbuild
View file

@ -238,6 +238,7 @@ header-y += map_to_7segment.h
header-y += matroxfb.h
header-y += mdio.h
header-y += media.h
header-y += mei.h
header-y += mempolicy.h
header-y += meye.h
header-y += mii.h
@ -380,6 +381,7 @@ header-y += unistd.h
header-y += usbdevice_fs.h
header-y += utime.h
header-y += utsname.h
header-y += uuid.h
header-y += uvcvideo.h
header-y += v4l2-mediabus.h
header-y += v4l2-subdev.h

3
include/linux/alarmtimer.h
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@ -76,4 +76,7 @@ static inline int alarmtimer_callback_running(struct alarm *timer)
}
/* Provide way to access the rtc device being used by alarmtimers */
struct rtc_device *alarmtimer_get_rtcdev(void);
#endif

191
include/linux/iio/buffer.h Normal file
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@ -0,0 +1,191 @@
/* The industrial I/O core - generic buffer interfaces.
*
* 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_BUFFER_GENERIC_H_
#define _IIO_BUFFER_GENERIC_H_
#include <linux/sysfs.h>
#include <linux/iio/iio.h>
#ifdef CONFIG_IIO_BUFFER
struct iio_buffer;
/**
* struct iio_buffer_access_funcs - access functions for buffers.
* @store_to: actually store stuff to the buffer
* @read_first_n: try to get a specified number of bytes (must exist)
* @request_update: if a parameter change has been marked, update underlying
* storage.
* @get_bytes_per_datum:get current bytes per datum
* @set_bytes_per_datum:set number of bytes per datum
* @get_length: get number of datums in buffer
* @set_length: set number of datums in buffer
*
* The purpose of this structure is to make the buffer element
* modular as event for a given driver, different usecases may require
* different buffer designs (space efficiency vs speed for example).
*
* It is worth noting that a given buffer implementation may only support a
* small proportion of these functions. The core code 'should' cope fine with
* any of them not existing.
**/
struct iio_buffer_access_funcs {
int (*store_to)(struct iio_buffer *buffer, u8 *data, s64 timestamp);
int (*read_first_n)(struct iio_buffer *buffer,
size_t n,
char __user *buf);
int (*request_update)(struct iio_buffer *buffer);
int (*get_bytes_per_datum)(struct iio_buffer *buffer);
int (*set_bytes_per_datum)(struct iio_buffer *buffer, size_t bpd);
int (*get_length)(struct iio_buffer *buffer);
int (*set_length)(struct iio_buffer *buffer, int length);
};
/**
* struct iio_buffer - general buffer structure
* @length: [DEVICE] number of datums in buffer
* @bytes_per_datum: [DEVICE] size of individual datum including timestamp
* @scan_el_attrs: [DRIVER] control of scan elements if that scan mode
* control method is used
* @scan_mask: [INTERN] bitmask used in masking scan mode elements
* @scan_timestamp: [INTERN] does the scan mode include a timestamp
* @access: [DRIVER] buffer access functions associated with the
* implementation.
* @scan_el_dev_attr_list:[INTERN] list of scan element related attributes.
* @scan_el_group: [DRIVER] attribute group for those attributes not
* created from the iio_chan_info array.
* @pollq: [INTERN] wait queue to allow for polling on the buffer.
* @stufftoread: [INTERN] flag to indicate new data.
* @demux_list: [INTERN] list of operations required to demux the scan.
* @demux_bounce: [INTERN] buffer for doing gather from incoming scan.
**/
struct iio_buffer {
int length;
int bytes_per_datum;
struct attribute_group *scan_el_attrs;
long *scan_mask;
bool scan_timestamp;
const struct iio_buffer_access_funcs *access;
struct list_head scan_el_dev_attr_list;
struct attribute_group scan_el_group;
wait_queue_head_t pollq;
bool stufftoread;
const struct attribute_group *attrs;
struct list_head demux_list;
unsigned char *demux_bounce;
};
/**
* iio_buffer_init() - Initialize the buffer structure
* @buffer: buffer to be initialized
**/
void iio_buffer_init(struct iio_buffer *buffer);
/**
* __iio_update_buffer() - update common elements of buffers
* @buffer: buffer that is the event source
* @bytes_per_datum: size of individual datum including timestamp
* @length: number of datums in buffer
**/
static inline void __iio_update_buffer(struct iio_buffer *buffer,
int bytes_per_datum, int length)
{
buffer->bytes_per_datum = bytes_per_datum;
buffer->length = length;
}
int iio_scan_mask_query(struct iio_dev *indio_dev,
struct iio_buffer *buffer, int bit);
/**
* iio_scan_mask_set() - set particular bit in the scan mask
* @buffer: the buffer whose scan mask we are interested in
* @bit: the bit to be set.
**/
int iio_scan_mask_set(struct iio_dev *indio_dev,
struct iio_buffer *buffer, int bit);
/**
* iio_push_to_buffer() - push to a registered buffer.
* @buffer: IIO buffer structure for device
* @scan: Full scan.
* @timestamp:
*/
int iio_push_to_buffer(struct iio_buffer *buffer, unsigned char *data,
s64 timestamp);
int iio_update_demux(struct iio_dev *indio_dev);
/**
* iio_buffer_register() - register the buffer with IIO core
* @indio_dev: device with the buffer to be registered
**/
int iio_buffer_register(struct iio_dev *indio_dev,
const struct iio_chan_spec *channels,
int num_channels);
/**
* iio_buffer_unregister() - unregister the buffer from IIO core
* @indio_dev: the device with the buffer to be unregistered
**/
void iio_buffer_unregister(struct iio_dev *indio_dev);
/**
* iio_buffer_read_length() - attr func to get number of datums in the buffer
**/
ssize_t iio_buffer_read_length(struct device *dev,
struct device_attribute *attr,
char *buf);
/**
* iio_buffer_write_length() - attr func to set number of datums in the buffer
**/
ssize_t iio_buffer_write_length(struct device *dev,
struct device_attribute *attr,
const char *buf,
size_t len);
/**
* iio_buffer_store_enable() - attr to turn the buffer on
**/
ssize_t iio_buffer_store_enable(struct device *dev,
struct device_attribute *attr,
const char *buf,
size_t len);
/**
* iio_buffer_show_enable() - attr to see if the buffer is on
**/
ssize_t iio_buffer_show_enable(struct device *dev,
struct device_attribute *attr,
char *buf);
#define IIO_BUFFER_LENGTH_ATTR DEVICE_ATTR(length, S_IRUGO | S_IWUSR, \
iio_buffer_read_length, \
iio_buffer_write_length)
#define IIO_BUFFER_ENABLE_ATTR DEVICE_ATTR(enable, S_IRUGO | S_IWUSR, \
iio_buffer_show_enable, \
iio_buffer_store_enable)
int iio_sw_buffer_preenable(struct iio_dev *indio_dev);
#else /* CONFIG_IIO_BUFFER */
static inline int iio_buffer_register(struct iio_dev *indio_dev,
struct iio_chan_spec *channels,
int num_channels)
{
return 0;
}
static inline void iio_buffer_unregister(struct iio_dev *indio_dev)
{};
#endif /* CONFIG_IIO_BUFFER */
#endif /* _IIO_BUFFER_GENERIC_H_ */

96
include/linux/iio/consumer.h Normal file
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@ -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

34
include/linux/iio/driver.h Normal file
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@ -0,0 +1,34 @@
/*
* Industrial I/O in kernel access map 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_H_
#define _IIO_INKERN_H_
struct iio_map;
/**
* iio_map_array_register() - tell the core about inkernel consumers
* @indio_dev: provider device
* @map: array of mappings specifying association of channel with client
*/
int iio_map_array_register(struct iio_dev *indio_dev,
struct iio_map *map);
/**
* iio_map_array_unregister() - tell the core to remove consumer mappings
* @indio_dev: provider device
* @map: array of mappings to remove. Note these must have same memory
* addresses as those originally added not just equal parameter
* values.
*/
int iio_map_array_unregister(struct iio_dev *indio_dev,
struct iio_map *map);
#endif

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include/linux/iio/events.h Normal file
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@ -0,0 +1,105 @@
/* The industrial I/O - event passing to userspace
*
* Copyright (c) 2008-2011 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_EVENTS_H_
#define _IIO_EVENTS_H_
#include <linux/ioctl.h>
#include <linux/types.h>
#include <linux/iio/types.h>
/**
* struct iio_event_data - The actual event being pushed to userspace
* @id: event identifier
* @timestamp: best estimate of time of event occurrence (often from
* the interrupt handler)
*/
struct iio_event_data {
__u64 id;
__s64 timestamp;
};
#define IIO_GET_EVENT_FD_IOCTL _IOR('i', 0x90, int)
enum iio_event_type {
IIO_EV_TYPE_THRESH,
IIO_EV_TYPE_MAG,
IIO_EV_TYPE_ROC,
IIO_EV_TYPE_THRESH_ADAPTIVE,
IIO_EV_TYPE_MAG_ADAPTIVE,
};
enum iio_event_direction {
IIO_EV_DIR_EITHER,
IIO_EV_DIR_RISING,
IIO_EV_DIR_FALLING,
};
/**
* IIO_EVENT_CODE() - create event identifier
* @chan_type: Type of the channel. Should be one of enum iio_chan_type.
* @diff: Whether the event is for an differential channel or not.
* @modifier: Modifier for the channel. Should be one of enum iio_modifier.
* @direction: Direction of the event. One of enum iio_event_direction.
* @type: Type of the event. Should be one enum iio_event_type.
* @chan: Channel number for non-differential channels.
* @chan1: First channel number for differential channels.
* @chan2: Second channel number for differential channels.
*/
#define IIO_EVENT_CODE(chan_type, diff, modifier, direction, \
type, chan, chan1, chan2) \
(((u64)type << 56) | ((u64)diff << 55) | \
((u64)direction << 48) | ((u64)modifier << 40) | \
((u64)chan_type << 32) | (((u16)chan2) << 16) | ((u16)chan1) | \
((u16)chan))
#define IIO_EV_DIR_MAX 4
#define IIO_EV_BIT(type, direction) \
(1 << (type*IIO_EV_DIR_MAX + direction))
/**
* IIO_MOD_EVENT_CODE() - create event identifier for modified channels
* @chan_type: Type of the channel. Should be one of enum iio_chan_type.
* @number: Channel number.
* @modifier: Modifier for the channel. Should be one of enum iio_modifier.
* @type: Type of the event. Should be one enum iio_event_type.
* @direction: Direction of the event. One of enum iio_event_direction.
*/
#define IIO_MOD_EVENT_CODE(chan_type, number, modifier, \
type, direction) \
IIO_EVENT_CODE(chan_type, 0, modifier, direction, type, number, 0, 0)
/**
* IIO_UNMOD_EVENT_CODE() - create event identifier for unmodified channels
* @chan_type: Type of the channel. Should be one of enum iio_chan_type.
* @number: Channel number.
* @type: Type of the event. Should be one enum iio_event_type.
* @direction: Direction of the event. One of enum iio_event_direction.
*/
#define IIO_UNMOD_EVENT_CODE(chan_type, number, type, direction) \
IIO_EVENT_CODE(chan_type, 0, 0, direction, type, number, 0, 0)
#define IIO_EVENT_CODE_EXTRACT_TYPE(mask) ((mask >> 56) & 0xFF)
#define IIO_EVENT_CODE_EXTRACT_DIR(mask) ((mask >> 48) & 0xCF)
#define IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(mask) ((mask >> 32) & 0xFF)
/* Event code number extraction depends on which type of event we have.
* Perhaps review this function in the future*/
#define IIO_EVENT_CODE_EXTRACT_CHAN(mask) ((__s16)(mask & 0xFFFF))
#define IIO_EVENT_CODE_EXTRACT_CHAN2(mask) ((__s16)(((mask) >> 16) & 0xFFFF))
#define IIO_EVENT_CODE_EXTRACT_MODIFIER(mask) ((mask >> 40) & 0xFF)
#define IIO_EVENT_CODE_EXTRACT_DIFF(mask) (((mask) >> 55) & 0x1)
#endif

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include/linux/iio/iio.h Normal file
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@ -0,0 +1,492 @@
/* The industrial I/O core
*
* 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 _INDUSTRIAL_IO_H_
#define _INDUSTRIAL_IO_H_
#include <linux/device.h>
#include <linux/cdev.h>
#include <linux/iio/types.h>
/* IIO TODO LIST */
/*
* Provide means of adjusting timer accuracy.
* Currently assumes nano seconds.
*/
enum iio_chan_info_enum {
IIO_CHAN_INFO_RAW = 0,
IIO_CHAN_INFO_PROCESSED,
IIO_CHAN_INFO_SCALE,
IIO_CHAN_INFO_OFFSET,
IIO_CHAN_INFO_CALIBSCALE,
IIO_CHAN_INFO_CALIBBIAS,
IIO_CHAN_INFO_PEAK,
IIO_CHAN_INFO_PEAK_SCALE,
IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW,
IIO_CHAN_INFO_AVERAGE_RAW,
IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY,
IIO_CHAN_INFO_SAMP_FREQ,
IIO_CHAN_INFO_FREQUENCY,
IIO_CHAN_INFO_PHASE,
IIO_CHAN_INFO_HARDWAREGAIN,
};
#define IIO_CHAN_INFO_SHARED_BIT(type) BIT(type*2)
#define IIO_CHAN_INFO_SEPARATE_BIT(type) BIT(type*2 + 1)
#define IIO_CHAN_INFO_RAW_SEPARATE_BIT \
IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_RAW)
#define IIO_CHAN_INFO_PROCESSED_SEPARATE_BIT \
IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_PROCESSED)
#define IIO_CHAN_INFO_SCALE_SEPARATE_BIT \
IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_SCALE)
#define IIO_CHAN_INFO_SCALE_SHARED_BIT \
IIO_CHAN_INFO_SHARED_BIT(IIO_CHAN_INFO_SCALE)
#define IIO_CHAN_INFO_OFFSET_SEPARATE_BIT \
IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_OFFSET)
#define IIO_CHAN_INFO_OFFSET_SHARED_BIT \
IIO_CHAN_INFO_SHARED_BIT(IIO_CHAN_INFO_OFFSET)
#define IIO_CHAN_INFO_CALIBSCALE_SEPARATE_BIT \
IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_CALIBSCALE)
#define IIO_CHAN_INFO_CALIBSCALE_SHARED_BIT \
IIO_CHAN_INFO_SHARED_BIT(IIO_CHAN_INFO_CALIBSCALE)
#define IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT \
IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_CALIBBIAS)
#define IIO_CHAN_INFO_CALIBBIAS_SHARED_BIT \
IIO_CHAN_INFO_SHARED_BIT(IIO_CHAN_INFO_CALIBBIAS)
#define IIO_CHAN_INFO_PEAK_SEPARATE_BIT \
IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_PEAK)
#define IIO_CHAN_INFO_PEAK_SHARED_BIT \
IIO_CHAN_INFO_SHARED_BIT(IIO_CHAN_INFO_PEAK)
#define IIO_CHAN_INFO_PEAKSCALE_SEPARATE_BIT \
IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_PEAKSCALE)
#define IIO_CHAN_INFO_PEAKSCALE_SHARED_BIT \
IIO_CHAN_INFO_SHARED_BIT(IIO_CHAN_INFO_PEAKSCALE)
#define IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW_SEPARATE_BIT \
IIO_CHAN_INFO_SEPARATE_BIT( \
IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW)
#define IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW_SHARED_BIT \
IIO_CHAN_INFO_SHARED_BIT( \
IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW)
#define IIO_CHAN_INFO_AVERAGE_RAW_SEPARATE_BIT \
IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_AVERAGE_RAW)
#define IIO_CHAN_INFO_AVERAGE_RAW_SHARED_BIT \
IIO_CHAN_INFO_SHARED_BIT(IIO_CHAN_INFO_AVERAGE_RAW)
#define IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY_SHARED_BIT \
IIO_CHAN_INFO_SHARED_BIT( \
IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY)
#define IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY_SEPARATE_BIT \
IIO_CHAN_INFO_SEPARATE_BIT( \
IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY)
#define IIO_CHAN_INFO_SAMP_FREQ_SEPARATE_BIT \
IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_SAMP_FREQ)
#define IIO_CHAN_INFO_SAMP_FREQ_SHARED_BIT \
IIO_CHAN_INFO_SHARED_BIT(IIO_CHAN_INFO_SAMP_FREQ)
#define IIO_CHAN_INFO_FREQUENCY_SEPARATE_BIT \
IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_FREQUENCY)
#define IIO_CHAN_INFO_FREQUENCY_SHARED_BIT \
IIO_CHAN_INFO_SHARED_BIT(IIO_CHAN_INFO_FREQUENCY)
#define IIO_CHAN_INFO_PHASE_SEPARATE_BIT \
IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_PHASE)
#define IIO_CHAN_INFO_PHASE_SHARED_BIT \
IIO_CHAN_INFO_SHARED_BIT(IIO_CHAN_INFO_PHASE)
#define IIO_CHAN_INFO_HARDWAREGAIN_SEPARATE_BIT \
IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_HARDWAREGAIN)
#define IIO_CHAN_INFO_HARDWAREGAIN_SHARED_BIT \
IIO_CHAN_INFO_SHARED_BIT(IIO_CHAN_INFO_HARDWAREGAIN)
enum iio_endian {
IIO_CPU,
IIO_BE,
IIO_LE,
};
struct iio_chan_spec;
struct iio_dev;
/**
* struct iio_chan_spec_ext_info - Extended channel info attribute
* @name: Info attribute name
* @shared: Whether this attribute is shared between all channels.
* @read: Read callback for this info attribute, may be NULL.
* @write: Write callback for this info attribute, may be NULL.
* @private: Data private to the driver.
*/
struct iio_chan_spec_ext_info {
const char *name;
bool shared;
ssize_t (*read)(struct iio_dev *, uintptr_t private,
struct iio_chan_spec const *, char *buf);
ssize_t (*write)(struct iio_dev *, uintptr_t private,
struct iio_chan_spec const *, const char *buf,
size_t len);
uintptr_t private;
};
/**
* struct iio_chan_spec - specification of a single channel
* @type: What type of measurement is the channel making.
* @channel: What number or name do we wish to assign the channel.
* @channel2: If there is a second number for a differential
* channel then this is it. If modified is set then the
* value here specifies the modifier.
* @address: Driver specific identifier.
* @scan_index: Monotonic index to give ordering in scans when read
* from a buffer.
* @scan_type: Sign: 's' or 'u' to specify signed or unsigned
* realbits: Number of valid bits of data
* storage_bits: Realbits + padding
* shift: Shift right by this before masking out
* realbits.
* endianness: little or big endian
* @info_mask: What information is to be exported about this channel.
* This includes calibbias, scale etc.
* @event_mask: What events can this channel produce.
* @ext_info: Array of extended info attributes for this channel.
* The array is NULL terminated, the last element should
* have it's name field set to NULL.
* @extend_name: Allows labeling of channel attributes with an
* informative name. Note this has no effect codes etc,
* unlike modifiers.
* @datasheet_name: A name used in in kernel mapping of channels. It should
* correspond to the first name that the channel is referred
* to by in the datasheet (e.g. IND), or the nearest
* possible compound name (e.g. IND-INC).
* @modified: Does a modifier apply to this channel. What these are
* depends on the channel type. Modifier is set in
* channel2. Examples are IIO_MOD_X for axial sensors about
* the 'x' axis.
* @indexed: Specify the channel has a numerical index. If not,
* the value in channel will be suppressed for attribute
* but not for event codes. Typically set it to 0 when
* the index is false.
* @differential: Channel is differential.
*/
struct iio_chan_spec {
enum iio_chan_type type;
int channel;
int channel2;
unsigned long address;
int scan_index;
struct {
char sign;
u8 realbits;
u8 storagebits;
u8 shift;
enum iio_endian endianness;
} scan_type;
long info_mask;
long event_mask;
const struct iio_chan_spec_ext_info *ext_info;
const char *extend_name;
const char *datasheet_name;
unsigned modified:1;
unsigned indexed:1;
unsigned output:1;
unsigned differential:1;
};
#define IIO_ST(si, rb, sb, sh) \
{ .sign = si, .realbits = rb, .storagebits = sb, .shift = sh }
#define IIO_CHAN_SOFT_TIMESTAMP(_si) \
{ .type = IIO_TIMESTAMP, .channel = -1, \
.scan_index = _si, .scan_type = IIO_ST('s', 64, 64, 0) }
/**
* iio_get_time_ns() - utility function to get a time stamp for events etc
**/
static inline s64 iio_get_time_ns(void)
{
struct timespec ts;
/*
* calls getnstimeofday.
* If hrtimers then up to ns accurate, if not microsecond.
*/
ktime_get_real_ts(&ts);
return timespec_to_ns(&ts);
}
/* Device operating modes */
#define INDIO_DIRECT_MODE 0x01
#define INDIO_BUFFER_TRIGGERED 0x02
#define INDIO_BUFFER_HARDWARE 0x08
#define INDIO_ALL_BUFFER_MODES \
(INDIO_BUFFER_TRIGGERED | INDIO_BUFFER_HARDWARE)
struct iio_trigger; /* forward declaration */
struct iio_dev;
/**
* struct iio_info - constant information about device
* @driver_module: module structure used to ensure correct
* ownership of chrdevs etc
* @event_attrs: event control attributes
* @attrs: general purpose device attributes
* @read_raw: function to request a value from the device.
* mask specifies which value. Note 0 means a reading of
* the channel in question. Return value will specify the
* type of value returned by the device. val and val2 will
* contain the elements making up the returned value.
* @write_raw: function to write a value to the device.
* Parameters are the same as for read_raw.
* @write_raw_get_fmt: callback function to query the expected
* format/precision. If not set by the driver, write_raw
* returns IIO_VAL_INT_PLUS_MICRO.
* @read_event_config: find out if the event is enabled.
* @write_event_config: set if the event is enabled.
* @read_event_value: read a value associated with the event. Meaning
* is event dependant. event_code specifies which event.
* @write_event_value: write the value associated with the event.
* Meaning is event dependent.
* @validate_trigger: function to validate the trigger when the
* current trigger gets changed.
**/
struct iio_info {
struct module *driver_module;
struct attribute_group *event_attrs;
const struct attribute_group *attrs;
int (*read_raw)(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan,
int *val,
int *val2,
long mask);
int (*write_raw)(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan,
int val,
int val2,
long mask);
int (*write_raw_get_fmt)(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan,
long mask);
int (*read_event_config)(struct iio_dev *indio_dev,
u64 event_code);
int (*write_event_config)(struct iio_dev *indio_dev,
u64 event_code,
int state);
int (*read_event_value)(struct iio_dev *indio_dev,
u64 event_code,
int *val);
int (*write_event_value)(struct iio_dev *indio_dev,
u64 event_code,
int val);
int (*validate_trigger)(struct iio_dev *indio_dev,
struct iio_trigger *trig);
int (*update_scan_mode)(struct iio_dev *indio_dev,
const unsigned long *scan_mask);
int (*debugfs_reg_access)(struct iio_dev *indio_dev,
unsigned reg, unsigned writeval,
unsigned *readval);
};
/**
* struct iio_buffer_setup_ops - buffer setup related callbacks
* @preenable: [DRIVER] function to run prior to marking buffer enabled
* @postenable: [DRIVER] function to run after marking buffer enabled
* @predisable: [DRIVER] function to run prior to marking buffer
* disabled
* @postdisable: [DRIVER] function to run after marking buffer disabled
*/
struct iio_buffer_setup_ops {
int (*preenable)(struct iio_dev *);
int (*postenable)(struct iio_dev *);
int (*predisable)(struct iio_dev *);
int (*postdisable)(struct iio_dev *);
};
/**
* struct iio_dev - industrial I/O device
* @id: [INTERN] used to identify device internally
* @modes: [DRIVER] operating modes supported by device
* @currentmode: [DRIVER] current operating mode
* @dev: [DRIVER] device structure, should be assigned a parent
* and owner
* @event_interface: [INTERN] event chrdevs associated with interrupt lines
* @buffer: [DRIVER] any buffer present
* @scan_bytes: [INTERN] num bytes captured to be fed to buffer demux
* @mlock: [INTERN] lock used to prevent simultaneous device state
* changes
* @available_scan_masks: [DRIVER] optional array of allowed bitmasks
* @masklength: [INTERN] the length of the mask established from
* channels
* @active_scan_mask: [INTERN] union of all scan masks requested by buffers
* @scan_timestamp: [INTERN] set if any buffers have requested timestamp
* @scan_index_timestamp:[INTERN] cache of the index to the timestamp
* @trig: [INTERN] current device trigger (buffer modes)
* @pollfunc: [DRIVER] function run on trigger being received
* @channels: [DRIVER] channel specification structure table
* @num_channels: [DRIVER] number of chanels specified in @channels.
* @channel_attr_list: [INTERN] keep track of automatically created channel
* attributes
* @chan_attr_group: [INTERN] group for all attrs in base directory
* @name: [DRIVER] name of the device.
* @info: [DRIVER] callbacks and constant info from driver
* @info_exist_lock: [INTERN] lock to prevent use during removal
* @setup_ops: [DRIVER] callbacks to call before and after buffer
* enable/disable
* @chrdev: [INTERN] associated character device
* @groups: [INTERN] attribute groups
* @groupcounter: [INTERN] index of next attribute group
* @flags: [INTERN] file ops related flags including busy flag.
* @debugfs_dentry: [INTERN] device specific debugfs dentry.
* @cached_reg_addr: [INTERN] cached register address for debugfs reads.
*/
struct iio_dev {
int id;
int modes;
int currentmode;
struct device dev;
struct iio_event_interface *event_interface;
struct iio_buffer *buffer;
int scan_bytes;
struct mutex mlock;
const unsigned long *available_scan_masks;
unsigned masklength;
const unsigned long *active_scan_mask;
bool scan_timestamp;
unsigned scan_index_timestamp;
struct iio_trigger *trig;
struct iio_poll_func *pollfunc;
struct iio_chan_spec const *channels;
int num_channels;
struct list_head channel_attr_list;
struct attribute_group chan_attr_group;
const char *name;
const struct iio_info *info;
struct mutex info_exist_lock;
const struct iio_buffer_setup_ops *setup_ops;
struct cdev chrdev;
#define IIO_MAX_GROUPS 6
const struct attribute_group *groups[IIO_MAX_GROUPS + 1];
int groupcounter;
unsigned long flags;
#if defined(CONFIG_DEBUG_FS)
struct dentry *debugfs_dentry;
unsigned cached_reg_addr;
#endif
};
/**
* iio_find_channel_from_si() - get channel from its scan index
* @indio_dev: device
* @si: scan index to match
*/
const struct iio_chan_spec
*iio_find_channel_from_si(struct iio_dev *indio_dev, int si);
/**
* iio_device_register() - register a device with the IIO subsystem
* @indio_dev: Device structure filled by the device driver
**/
int iio_device_register(struct iio_dev *indio_dev);
/**
* iio_device_unregister() - unregister a device from the IIO subsystem
* @indio_dev: Device structure representing the device.
**/
void iio_device_unregister(struct iio_dev *indio_dev);
/**
* iio_push_event() - try to add event to the list for userspace reading
* @indio_dev: IIO device structure
* @ev_code: What event
* @timestamp: When the event occurred
**/
int iio_push_event(struct iio_dev *indio_dev, u64 ev_code, s64 timestamp);
extern struct bus_type iio_bus_type;
/**
* iio_device_put() - reference counted deallocation of struct device
* @dev: the iio_device containing the device
**/
static inline void iio_device_put(struct iio_dev *indio_dev)
{
if (indio_dev)
put_device(&indio_dev->dev);
};
/**
* dev_to_iio_dev() - Get IIO device struct from a device struct
* @dev: The device embedded in the IIO device
*
* Note: The device must be a IIO device, otherwise the result is undefined.
*/
static inline struct iio_dev *dev_to_iio_dev(struct device *dev)
{
return container_of(dev, struct iio_dev, dev);
}
/* Can we make this smaller? */
#define IIO_ALIGN L1_CACHE_BYTES
/**
* iio_device_alloc() - allocate an iio_dev from a driver
* @sizeof_priv: Space to allocate for private structure.
**/
struct iio_dev *iio_device_alloc(int sizeof_priv);
static inline void *iio_priv(const struct iio_dev *indio_dev)
{
return (char *)indio_dev + ALIGN(sizeof(struct iio_dev), IIO_ALIGN);
}
static inline struct iio_dev *iio_priv_to_dev(void *priv)
{
return (struct iio_dev *)((char *)priv -
ALIGN(sizeof(struct iio_dev), IIO_ALIGN));
}
/**
* iio_device_free() - free an iio_dev from a driver
* @dev: the iio_dev associated with the device
**/
void iio_device_free(struct iio_dev *indio_dev);
/**
* iio_buffer_enabled() - helper function to test if the buffer is enabled
* @indio_dev: IIO device info structure for device
**/
static inline bool iio_buffer_enabled(struct iio_dev *indio_dev)
{
return indio_dev->currentmode
& (INDIO_BUFFER_TRIGGERED | INDIO_BUFFER_HARDWARE);
};
/**
* iio_get_debugfs_dentry() - helper function to get the debugfs_dentry
* @indio_dev: IIO device info structure for device
**/
#if defined(CONFIG_DEBUG_FS)
static inline struct dentry *iio_get_debugfs_dentry(struct iio_dev *indio_dev)
{
return indio_dev->debugfs_dentry;
};
#else
static inline struct dentry *iio_get_debugfs_dentry(struct iio_dev *indio_dev)
{
return NULL;
};
#endif
#endif /* _INDUSTRIAL_IO_H_ */

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#include <linux/kfifo.h>
#include <linux/iio/iio.h>
#include <linux/iio/buffer.h>
struct iio_buffer *iio_kfifo_allocate(struct iio_dev *indio_dev);
void iio_kfifo_free(struct iio_buffer *r);

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/*
* 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;
};

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/* The industrial I/O core
*
*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.
*
* General attributes
*/
#ifndef _INDUSTRIAL_IO_SYSFS_H_
#define _INDUSTRIAL_IO_SYSFS_H_
struct iio_chan_spec;
/**
* struct iio_dev_attr - iio specific device attribute
* @dev_attr: underlying device attribute
* @address: associated register address
* @l: list head for maintaining list of dynamically created attrs.
*/
struct iio_dev_attr {
struct device_attribute dev_attr;
u64 address;
struct list_head l;
struct iio_chan_spec const *c;
};
#define to_iio_dev_attr(_dev_attr) \
container_of(_dev_attr, struct iio_dev_attr, dev_attr)
ssize_t iio_read_const_attr(struct device *dev,
struct device_attribute *attr,
char *len);
/**
* struct iio_const_attr - constant device specific attribute
* often used for things like available modes
* @string: attribute string
* @dev_attr: underlying device attribute
*/
struct iio_const_attr {
const char *string;
struct device_attribute dev_attr;
};
#define to_iio_const_attr(_dev_attr) \
container_of(_dev_attr, struct iio_const_attr, dev_attr)
/* Some attributes will be hard coded (device dependent) and not require an
address, in these cases pass a negative */
#define IIO_ATTR(_name, _mode, _show, _store, _addr) \
{ .dev_attr = __ATTR(_name, _mode, _show, _store), \
.address = _addr }
#define IIO_DEVICE_ATTR(_name, _mode, _show, _store, _addr) \
struct iio_dev_attr iio_dev_attr_##_name \
= IIO_ATTR(_name, _mode, _show, _store, _addr)
#define IIO_DEVICE_ATTR_NAMED(_vname, _name, _mode, _show, _store, _addr) \
struct iio_dev_attr iio_dev_attr_##_vname \
= IIO_ATTR(_name, _mode, _show, _store, _addr)
#define IIO_CONST_ATTR(_name, _string) \
struct iio_const_attr iio_const_attr_##_name \
= { .string = _string, \
.dev_attr = __ATTR(_name, S_IRUGO, iio_read_const_attr, NULL)}
#define IIO_CONST_ATTR_NAMED(_vname, _name, _string) \
struct iio_const_attr iio_const_attr_##_vname \
= { .string = _string, \
.dev_attr = __ATTR(_name, S_IRUGO, iio_read_const_attr, NULL)}
/* Generic attributes of onetype or another */
/**
* IIO_DEV_ATTR_RESET: resets the device
**/
#define IIO_DEV_ATTR_RESET(_store) \
IIO_DEVICE_ATTR(reset, S_IWUSR, NULL, _store, 0)
/**
* IIO_DEV_ATTR_SAMP_FREQ - sets any internal clock frequency
* @_mode: sysfs file mode/permissions
* @_show: output method for the attribute
* @_store: input method for the attribute
**/
#define IIO_DEV_ATTR_SAMP_FREQ(_mode, _show, _store) \
IIO_DEVICE_ATTR(sampling_frequency, _mode, _show, _store, 0)
/**
* IIO_DEV_ATTR_SAMP_FREQ_AVAIL - list available sampling frequencies
* @_show: output method for the attribute
*
* May be mode dependent on some devices
**/
#define IIO_DEV_ATTR_SAMP_FREQ_AVAIL(_show) \
IIO_DEVICE_ATTR(sampling_frequency_available, S_IRUGO, _show, NULL, 0)
/**
* IIO_CONST_ATTR_AVAIL_SAMP_FREQ - list available sampling frequencies
* @_string: frequency string for the attribute
*
* Constant version
**/
#define IIO_CONST_ATTR_SAMP_FREQ_AVAIL(_string) \
IIO_CONST_ATTR(sampling_frequency_available, _string)
#define IIO_DEV_ATTR_TEMP_RAW(_show) \
IIO_DEVICE_ATTR(in_temp_raw, S_IRUGO, _show, NULL, 0)
#define IIO_CONST_ATTR_TEMP_OFFSET(_string) \
IIO_CONST_ATTR(in_temp_offset, _string)
#define IIO_CONST_ATTR_TEMP_SCALE(_string) \
IIO_CONST_ATTR(in_temp_scale, _string)
#endif /* _INDUSTRIAL_IO_SYSFS_H_ */

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/* The industrial I/O core, trigger handling functions
*
* 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.
*/
#include <linux/irq.h>
#include <linux/module.h>
#ifndef _IIO_TRIGGER_H_
#define _IIO_TRIGGER_H_
struct iio_subirq {
bool enabled;
};
/**
* struct iio_trigger_ops - operations structure for an iio_trigger.
* @owner: used to monitor usage count of the trigger.
* @set_trigger_state: switch on/off the trigger on demand
* @try_reenable: function to reenable the trigger when the
* use count is zero (may be NULL)
* @validate_device: function to validate the device when the
* current trigger gets changed.
*
* This is typically static const within a driver and shared by
* instances of a given device.
**/
struct iio_trigger_ops {
struct module *owner;
int (*set_trigger_state)(struct iio_trigger *trig, bool state);
int (*try_reenable)(struct iio_trigger *trig);
int (*validate_device)(struct iio_trigger *trig,
struct iio_dev *indio_dev);
};
/**
* struct iio_trigger - industrial I/O trigger device
*
* @id: [INTERN] unique id number
* @name: [DRIVER] unique name
* @dev: [DRIVER] associated device (if relevant)
* @private_data: [DRIVER] device specific data
* @list: [INTERN] used in maintenance of global trigger list
* @alloc_list: [DRIVER] used for driver specific trigger list
* @use_count: use count for the trigger
* @subirq_chip: [INTERN] associate 'virtual' irq chip.
* @subirq_base: [INTERN] base number for irqs provided by trigger.
* @subirqs: [INTERN] information about the 'child' irqs.
* @pool: [INTERN] bitmap of irqs currently in use.
* @pool_lock: [INTERN] protection of the irq pool.
**/
struct iio_trigger {
const struct iio_trigger_ops *ops;
int id;
const char *name;
struct device dev;
void *private_data;
struct list_head list;
struct list_head alloc_list;
int use_count;
struct irq_chip subirq_chip;
int subirq_base;
struct iio_subirq subirqs[CONFIG_IIO_CONSUMERS_PER_TRIGGER];
unsigned long pool[BITS_TO_LONGS(CONFIG_IIO_CONSUMERS_PER_TRIGGER)];
struct mutex pool_lock;
};
static inline struct iio_trigger *to_iio_trigger(struct device *d)
{
return container_of(d, struct iio_trigger, dev);
};
static inline void iio_trigger_put(struct iio_trigger *trig)
{
module_put(trig->ops->owner);
put_device(&trig->dev);
};
static inline void iio_trigger_get(struct iio_trigger *trig)
{
get_device(&trig->dev);
__module_get(trig->ops->owner);
};
/**
* iio_trigger_register() - register a trigger with the IIO core
* @trig_info: trigger to be registered
**/
int iio_trigger_register(struct iio_trigger *trig_info);
/**
* iio_trigger_unregister() - unregister a trigger from the core
* @trig_info: trigger to be unregistered
**/
void iio_trigger_unregister(struct iio_trigger *trig_info);
/**
* iio_trigger_poll() - called on a trigger occurring
* @trig: trigger which occurred
*
* Typically called in relevant hardware interrupt handler.
**/
void iio_trigger_poll(struct iio_trigger *trig, s64 time);
void iio_trigger_poll_chained(struct iio_trigger *trig, s64 time);
irqreturn_t iio_trigger_generic_data_rdy_poll(int irq, void *private);
__printf(1, 2) struct iio_trigger *iio_trigger_alloc(const char *fmt, ...);
void iio_trigger_free(struct iio_trigger *trig);
#endif /* _IIO_TRIGGER_H_ */

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/* The industrial I/O core, trigger consumer functions
*
* Copyright (c) 2008-2011 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_poll_func - poll function pair
*
* @indio_dev: data specific to device (passed into poll func)
* @h: the function that is actually run on trigger
* @thread: threaded interrupt part
* @type: the type of interrupt (basically if oneshot)
* @name: name used to identify the trigger consumer.
* @irq: the corresponding irq as allocated from the
* trigger pool
* @timestamp: some devices need a timestamp grabbed as soon
* as possible after the trigger - hence handler
* passes it via here.
**/
struct iio_poll_func {
struct iio_dev *indio_dev;
irqreturn_t (*h)(int irq, void *p);
irqreturn_t (*thread)(int irq, void *p);
int type;
char *name;
int irq;
s64 timestamp;
};
struct iio_poll_func
*iio_alloc_pollfunc(irqreturn_t (*h)(int irq, void *p),
irqreturn_t (*thread)(int irq, void *p),
int type,
struct iio_dev *indio_dev,
const char *fmt,
...);
void iio_dealloc_pollfunc(struct iio_poll_func *pf);
irqreturn_t iio_pollfunc_store_time(int irq, void *p);
void iio_trigger_notify_done(struct iio_trigger *trig);
/*
* Two functions for common case where all that happens is a pollfunc
* is attached and detached from a trigger
*/
int iio_triggered_buffer_postenable(struct iio_dev *indio_dev);
int iio_triggered_buffer_predisable(struct iio_dev *indio_dev);

55
include/linux/iio/types.h Normal file
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@ -0,0 +1,55 @@
/* 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,
IIO_ALTVOLTAGE,
};
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
#define IIO_VAL_INT_PLUS_MICRO_DB 4
#endif /* _IIO_TYPES_H_ */

110
include/linux/mei.h Normal file
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@ -0,0 +1,110 @@
/******************************************************************************
* Intel Management Engine Interface (Intel MEI) Linux driver
* Intel MEI Interface Header
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2003 - 2012 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
* USA
*
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
*
* Contact Information:
* Intel Corporation.
* linux-mei@linux.intel.com
* http://www.intel.com
*
* BSD LICENSE
*
* Copyright(c) 2003 - 2012 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*****************************************************************************/
#ifndef _LINUX_MEI_H
#define _LINUX_MEI_H
#include <linux/uuid.h>
/*
* This IOCTL is used to associate the current file descriptor with a
* FW Client (given by UUID). This opens a communication channel
* between a host client and a FW client. From this point every read and write
* will communicate with the associated FW client.
* Only in close() (file_operation release()) the communication between
* the clients is disconnected
*
* The IOCTL argument is a struct with a union that contains
* the input parameter and the output parameter for this IOCTL.
*
* The input parameter is UUID of the FW Client.
* The output parameter is the properties of the FW client
* (FW protocol version and max message size).
*
*/
#define IOCTL_MEI_CONNECT_CLIENT \
_IOWR('H' , 0x01, struct mei_connect_client_data)
/*
* Intel MEI client information struct
*/
struct mei_client {
__u32 max_msg_length;
__u8 protocol_version;
__u8 reserved[3];
};
/*
* IOCTL Connect Client Data structure
*/
struct mei_connect_client_data {
union {
uuid_le in_client_uuid;
struct mei_client out_client_properties;
};
};
#endif /* _LINUX_MEI_H */

61
include/linux/platform_data/at91_adc.h Normal file
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/*
* Copyright (C) 2011 Free Electrons
*
* Licensed under the GPLv2 or later.
*/
#ifndef _AT91_ADC_H_
#define _AT91_ADC_H_
/**
* struct at91_adc_reg_desc - Various informations relative to registers
* @channel_base: Base offset for the channel data registers
* @drdy_mask: Mask of the DRDY field in the relevant registers
(Interruptions registers mostly)
* @status_register: Offset of the Interrupt Status Register
* @trigger_register: Offset of the Trigger setup register
*/
struct at91_adc_reg_desc {
u8 channel_base;
u32 drdy_mask;
u8 status_register;
u8 trigger_register;
};
/**
* struct at91_adc_trigger - description of triggers
* @name: name of the trigger advertised to the user
* @value: value to set in the ADC's trigger setup register
to enable the trigger
* @is_external: Does the trigger rely on an external pin?
*/
struct at91_adc_trigger {
const char *name;
u8 value;
bool is_external;
};
/**
* struct at91_adc_data - platform data for ADC driver
* @channels_used: channels in use on the board as a bitmask
* @num_channels: global number of channels available on the board
* @registers: Registers definition on the board
* @startup_time: startup time of the ADC in microseconds
* @trigger_list: Triggers available in the ADC
* @trigger_number: Number of triggers available in the ADC
* @use_external_triggers: does the board has external triggers availables
* @vref: Reference voltage for the ADC in millivolts
*/
struct at91_adc_data {
unsigned long channels_used;
u8 num_channels;
struct at91_adc_reg_desc *registers;
u8 startup_time;
struct at91_adc_trigger *trigger_list;
u8 trigger_number;
bool use_external_triggers;
u16 vref;
};
extern void __init at91_add_device_adc(struct at91_adc_data *data);
#endif

98
include/linux/pstore_ram.h Normal file
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@ -0,0 +1,98 @@
/*
* Copyright (C) 2010 Marco Stornelli <marco.stornelli@gmail.com>
* Copyright (C) 2011 Kees Cook <keescook@chromium.org>
* Copyright (C) 2011 Google, Inc.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#ifndef __LINUX_PSTORE_RAM_H__
#define __LINUX_PSTORE_RAM_H__
#include <linux/device.h>
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/types.h>
#include <linux/init.h>
struct persistent_ram_buffer;
struct persistent_ram_descriptor {
const char *name;
phys_addr_t size;
};
struct persistent_ram {
phys_addr_t start;
phys_addr_t size;
int num_descs;
struct persistent_ram_descriptor *descs;
struct list_head node;
};
struct persistent_ram_zone {
phys_addr_t paddr;
size_t size;
void *vaddr;
struct persistent_ram_buffer *buffer;
size_t buffer_size;
/* ECC correction */
bool ecc;
char *par_buffer;
char *par_header;
struct rs_control *rs_decoder;
int corrected_bytes;
int bad_blocks;
int ecc_block_size;
int ecc_size;
int ecc_symsize;
int ecc_poly;
char *old_log;
size_t old_log_size;
};
int persistent_ram_early_init(struct persistent_ram *ram);
struct persistent_ram_zone * __init persistent_ram_new(phys_addr_t start,
size_t size,
bool ecc);
void persistent_ram_free(struct persistent_ram_zone *prz);
struct persistent_ram_zone *persistent_ram_init_ringbuffer(struct device *dev,
bool ecc);
int persistent_ram_write(struct persistent_ram_zone *prz, const void *s,
unsigned int count);
size_t persistent_ram_old_size(struct persistent_ram_zone *prz);
void *persistent_ram_old(struct persistent_ram_zone *prz);
void persistent_ram_free_old(struct persistent_ram_zone *prz);
ssize_t persistent_ram_ecc_string(struct persistent_ram_zone *prz,
char *str, size_t len);
/*
* Ramoops platform data
* @mem_size memory size for ramoops
* @mem_address physical memory address to contain ramoops
*/
struct ramoops_platform_data {
unsigned long mem_size;
unsigned long mem_address;
unsigned long record_size;
int dump_oops;
bool ecc;
};
#endif

17
include/linux/ramoops.h
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@ -1,17 +0,0 @@
#ifndef __RAMOOPS_H
#define __RAMOOPS_H
/*
* Ramoops platform data
* @mem_size memory size for ramoops
* @mem_address physical memory address to contain ramoops
*/
struct ramoops_platform_data {
unsigned long mem_size;
unsigned long mem_address;
unsigned long record_size;
int dump_oops;
};
#endif

4
include/linux/uuid.h
View file

@ -54,6 +54,8 @@ typedef struct {
UUID_BE(0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00, \
0x00, 0x00, 0x00, 0x00)
#ifdef __KERNEL__
static inline int uuid_le_cmp(const uuid_le u1, const uuid_le u2)
{
return memcmp(&u1, &u2, sizeof(uuid_le));
@ -67,4 +69,6 @@ static inline int uuid_be_cmp(const uuid_be u1, const uuid_be u2)
extern void uuid_le_gen(uuid_le *u);
extern void uuid_be_gen(uuid_be *u);
#endif /* __KERNEL__ */
#endif

174
include/linux/vme.h Normal file
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#ifndef _VME_H_
#define _VME_H_
/* Resource Type */
enum vme_resource_type {
VME_MASTER,
VME_SLAVE,
VME_DMA,
VME_LM
};
/* VME Address Spaces */
#define VME_A16 0x1
#define VME_A24 0x2
#define VME_A32 0x4
#define VME_A64 0x8
#define VME_CRCSR 0x10
#define VME_USER1 0x20
#define VME_USER2 0x40
#define VME_USER3 0x80
#define VME_USER4 0x100
#define VME_A16_MAX 0x10000ULL
#define VME_A24_MAX 0x1000000ULL
#define VME_A32_MAX 0x100000000ULL
#define VME_A64_MAX 0x10000000000000000ULL
#define VME_CRCSR_MAX 0x1000000ULL
/* VME Cycle Types */
#define VME_SCT 0x1
#define VME_BLT 0x2
#define VME_MBLT 0x4
#define VME_2eVME 0x8
#define VME_2eSST 0x10
#define VME_2eSSTB 0x20
#define VME_2eSST160 0x100
#define VME_2eSST267 0x200
#define VME_2eSST320 0x400
#define VME_SUPER 0x1000
#define VME_USER 0x2000
#define VME_PROG 0x4000
#define VME_DATA 0x8000
/* VME Data Widths */
#define VME_D8 0x1
#define VME_D16 0x2
#define VME_D32 0x4
#define VME_D64 0x8
/* Arbitration Scheduling Modes */
#define VME_R_ROBIN_MODE 0x1
#define VME_PRIORITY_MODE 0x2
#define VME_DMA_PATTERN (1<<0)
#define VME_DMA_PCI (1<<1)
#define VME_DMA_VME (1<<2)
#define VME_DMA_PATTERN_BYTE (1<<0)
#define VME_DMA_PATTERN_WORD (1<<1)
#define VME_DMA_PATTERN_INCREMENT (1<<2)
#define VME_DMA_VME_TO_MEM (1<<0)
#define VME_DMA_MEM_TO_VME (1<<1)
#define VME_DMA_VME_TO_VME (1<<2)
#define VME_DMA_MEM_TO_MEM (1<<3)
#define VME_DMA_PATTERN_TO_VME (1<<4)
#define VME_DMA_PATTERN_TO_MEM (1<<5)
struct vme_dma_attr {
u32 type;
void *private;
};
struct vme_resource {
enum vme_resource_type type;
struct list_head *entry;
};
extern struct bus_type vme_bus_type;
/* VME_MAX_BRIDGES comes from the type of vme_bus_numbers */
#define VME_MAX_BRIDGES (sizeof(unsigned int)*8)
#define VME_MAX_SLOTS 32
#define VME_SLOT_CURRENT -1
#define VME_SLOT_ALL -2
/**
* Structure representing a VME device
* @num: The device number
* @bridge: Pointer to the bridge device this device is on
* @dev: Internal device structure
* @drv_list: List of devices (per driver)
* @bridge_list: List of devices (per bridge)
*/
struct vme_dev {
int num;
struct vme_bridge *bridge;
struct device dev;
struct list_head drv_list;
struct list_head bridge_list;
};
struct vme_driver {
struct list_head node;
const char *name;
int (*match)(struct vme_dev *);
int (*probe)(struct vme_dev *);
int (*remove)(struct vme_dev *);
void (*shutdown)(void);
struct device_driver driver;
struct list_head devices;
};
void *vme_alloc_consistent(struct vme_resource *, size_t, dma_addr_t *);
void vme_free_consistent(struct vme_resource *, size_t, void *,
dma_addr_t);
size_t vme_get_size(struct vme_resource *);
struct vme_resource *vme_slave_request(struct vme_dev *, u32, u32);
int vme_slave_set(struct vme_resource *, int, unsigned long long,
unsigned long long, dma_addr_t, u32, u32);
int vme_slave_get(struct vme_resource *, int *, unsigned long long *,
unsigned long long *, dma_addr_t *, u32 *, u32 *);
void vme_slave_free(struct vme_resource *);
struct vme_resource *vme_master_request(struct vme_dev *, u32, u32, u32);
int vme_master_set(struct vme_resource *, int, unsigned long long,
unsigned long long, u32, u32, u32);
int vme_master_get(struct vme_resource *, int *, unsigned long long *,
unsigned long long *, u32 *, u32 *, u32 *);
ssize_t vme_master_read(struct vme_resource *, void *, size_t, loff_t);
ssize_t vme_master_write(struct vme_resource *, void *, size_t, loff_t);
unsigned int vme_master_rmw(struct vme_resource *, unsigned int, unsigned int,
unsigned int, loff_t);
void vme_master_free(struct vme_resource *);
struct vme_resource *vme_dma_request(struct vme_dev *, u32);
struct vme_dma_list *vme_new_dma_list(struct vme_resource *);
struct vme_dma_attr *vme_dma_pattern_attribute(u32, u32);
struct vme_dma_attr *vme_dma_pci_attribute(dma_addr_t);
struct vme_dma_attr *vme_dma_vme_attribute(unsigned long long, u32, u32, u32);
void vme_dma_free_attribute(struct vme_dma_attr *);
int vme_dma_list_add(struct vme_dma_list *, struct vme_dma_attr *,
struct vme_dma_attr *, size_t);
int vme_dma_list_exec(struct vme_dma_list *);
int vme_dma_list_free(struct vme_dma_list *);
int vme_dma_free(struct vme_resource *);
int vme_irq_request(struct vme_dev *, int, int,
void (*callback)(int, int, void *), void *);
void vme_irq_free(struct vme_dev *, int, int);
int vme_irq_generate(struct vme_dev *, int, int);
struct vme_resource *vme_lm_request(struct vme_dev *);
int vme_lm_count(struct vme_resource *);
int vme_lm_set(struct vme_resource *, unsigned long long, u32, u32);
int vme_lm_get(struct vme_resource *, unsigned long long *, u32 *, u32 *);
int vme_lm_attach(struct vme_resource *, int, void (*callback)(int));
int vme_lm_detach(struct vme_resource *, int);
void vme_lm_free(struct vme_resource *);
int vme_slot_get(struct vme_dev *);
int vme_register_driver(struct vme_driver *, unsigned int);
void vme_unregister_driver(struct vme_driver *);
#endif /* _VME_H_ */