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The drivers is in more or less good shape, conforms to the IIO ABI and none of
the default static code checker report any problems, so move it out of staging.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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The values presented here are completely bogus. Also ..._available attributes
are supposed to be used for properties that only support discrete sets of
values, but we accept continuous values and will round to the next supported
frequency.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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A negative sampling frequency is obviously invalid, so use kstrtouint() instead
of strict_strtoul. Also when setting a sampling frequency smaller than the
minimum supported frequency set the frequency to the minimum supported frequency
instead of just cutting off the upper bits of the raw register value.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Remove some unused includes from the driver.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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While the inclination channel claims to support reading the scale the driver did
not implement this, so trying to read the scale results in a -EINVAL. This patch
fixes it.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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This is not part of the ABI.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Delete some extra whitespace.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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All channels for this device have the same number of bits for calibscale and
caliboffset, there is no need to determine it dynamically based on the channel
type. Also there is no locking required since adis_read_reg_16() will take care
of proper locking on its own.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Instead of just cutting of the upper bits of the value make sure that the value
is in the valid range and return an error if it is not.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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The header is only used by a single C file, just put the register defines
directly into that C file and remove the header.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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The recomentation for IIO driver is to leave all scan elements off by default
and let userspace decide which channels need to be enabled.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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The adis16260 driver implements a unique feature in that it allows to change the
orientation of the gyroscope channel by specifying the orientation in platform
data. This feature is as far as I can see unused though and makes the driver
unnecessarily complex. So this patch removes the support for it. If it turns
out we need this, the cleanest approach to implement it is by adding support for
orientation mapping inside the IIO core so it is available to all drivers.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Remove the unused 'negate' property from the driver state struct. This also
means we can now use the adis struct directly as the driver data.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Return the actual value read from the device and not just the mask.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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The original info_mask is going away in favour of the broken out versions.
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
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CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer
needed.
Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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CONFIG_HOTPLUG is going away as an option so __devexit is no
longer needed.
Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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CONFIG_HOTPLUG is going away as an option so __devinit is no longer
needed.
Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Currently the driver reads out all sample registers of the device and throws
away those which it does not need. Furthermore the SPI message is constructed
each time the trigger handler is run, although it will be the same each time.
This patch preallocates and pre-constructs the SPI message in the
"update_scan_mode" callback. Only those register which are actually selected for
sampling are included in the message. The patch also gets rid of the conversion
of the sample data from big endian to the native endianness and instead marks
the channel as big endian in its scan type. This allows to directly push the
SPI transfer buffer to the IIO buffer without the need to post-process it.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Use the new adis library for the adis16260 driver. This allows us to completely
scrap the adis16260 buffer and trigger code and about half of the core driver
code.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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This resolves the conflict with:
drivers/staging/comedi/drivers/amplc_dio200.c
and syncs up the changes that happened in the staging directory for
3.7-rc3.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Most of the channel offsets and scales in the adis16260 are incorrect:
* Temperature scale is off by a factor of 1000
* Voltage scale is off by a factor of 1000
* Temperature offset is completely wrong
This patch fixes these issues. Also use the IIO_DEGREE_TO_RAD for the angle
velocity since this makes it much easier to compare it to the value given in the
datasheet.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Some drivers define a DRIVER_NAME, but never use the define. This patch removes
defines.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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A simplified version of the semantic patch that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@r1@
statement S;
position p,p1;
@@
S@p1;@p
@script:python r2@
p << r1.p;
p1 << r1.p1;
@@
if p[0].line != p1[0].line_end:
cocci.include_match(False)
@@
position r1.p;
@@
-;@p
// </smpl>
Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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In the Linux device driver model the remove callback is not allowed to fail and
the device will be removed regardless of the return value of the remove
callback. So if we abort in the remove function and do not free all resources we
will create a resource leak. Also all kinds of undefined behaviour are expected
to happen since the IIO device is still there while its parent is already gone.
The error which the driver tries to handle in the remove function is
non-critical, so we can just ignore it and continue to free all resources and
remove the IIO device.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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This pulls in the staging tree fixes in 3.6-rc6 into our branch to resolve the
merge issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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"val" is used as a divisor later, so we should check for zero here to
avoid a division by zero.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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Autogenerated using the following coccinelle semantic patch:
// <smpl>
@r1@
identifier driver;
identifier fn;
position p;
type T;
@@
T driver = {
.remove =
(
fn@p
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__devexit_p(fn@p)
)
};
@r2@
identifier r1.fn;
position p != r1.p;
@@
fn@p
@r3@
identifier r1.fn;
position r1.p;
@@
(
__devexit_p(fn@p)
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-fn@p
+__devexit_p(fn)
)
@depends on !r2@
identifier r1.fn;
@@
static
-int fn
+int __devexit fn
(...) { ... }
@r11@
identifier driver;
identifier fn;
position p;
type T;
@@
T driver = {
.probe = fn@p
};
@r12@
identifier r11.fn;
position p != r11.p;
@@
fn@p
@depends on !r12@
identifier r11.fn;
@@
static
-int fn
+int __devinit fn
(...) { ... }
// </smpl>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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The SPI drvdata is set to adis16260_state struct in probe(), but assumed to be
the iio_dev struct in remove(). Fix this by setting it to the iio_dev in
probe().
The issue has been discovered using the following coccinelle patch:
// <smpl>
@r1@
type T;
T data;
expression dev;
@@
(
spi_set_drvdata(dev, (void *)data)
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spi_set_drvdata(dev, data)
)
@r2@
type r1.T;
T data;
position p;
expression dev;
@@
data = spi_get_drvdata@p(dev)
@depends on r1@
position p != r2.p;
expression dev;
identifier data;
@@
*data = spi_get_drvdata@p(dev)
// </smpl>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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There is no reason for userspace to do this, so lets
drop this abi.
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
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None of these drivers ever schedule any work, so there is no need to flush any
scheduled work when the driver is removed.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Replace open-coded instances of getting a iio_dev struct from a device struct
with dev_to_iio_dev().
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Currently we use two different naming schemes in the IIO API, iio_verb_object
and iio_object_verb. E.g iio_device_register and iio_allocate_device. This
patches renames instances of the later to the former. The patch also renames allocate to
alloc as this seems to be the preferred form throughout the kernel.
In particular the following renames are performed by the patch:
iio_put_device -> iio_device_put
iio_allocate_device -> iio_device_alloc
iio_free_device -> iio_device_free
iio_get_trigger -> iio_trigger_get
iio_put_trigger -> iio_trigger_put
iio_allocate_trigger -> iio_trigger_alloc
iio_free_trigger -> iio_trigger_free
The conversion was done with the following coccinelle patch with manual fixes to
comments and documentation.
<smpl>
@@
@@
-iio_put_device
+iio_device_put
@@
@@
-iio_allocate_device
+iio_device_alloc
@@
@@
-iio_free_device
+iio_device_free
@@
@@
-iio_get_trigger
+iio_trigger_get
@@
@@
-iio_put_trigger
+iio_trigger_put
@@
@@
-iio_allocate_trigger
+iio_trigger_alloc
@@
@@
-iio_free_trigger
+iio_trigger_free
</smpl>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Step 1 in moving the IIO core out of staging.
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Precursor to making value read / write attribute optional.
No processed values in gyroscopes.
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This macro is being removed to simplify ongoing maintenance
so we need to unwind and remaining users.
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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* 'staging-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (466 commits)
net/hyperv: Add support for jumbo frame up to 64KB
net/hyperv: Add NETVSP protocol version negotiation
net/hyperv: Remove unnecessary kmap_atomic in netvsc driver
staging/rtl8192e: Register against lib80211
staging/rtl8192e: Convert to lib80211_crypt_info
staging/rtl8192e: Convert to lib80211_crypt_data and lib80211_crypt_ops
staging/rtl8192e: Add lib80211.h to rtllib.h
staging/mei: add watchdog device registration wrappers
drm/omap: GEM, deal with cache
staging: vt6656: int.c, int.h: Change return of function to void
staging: usbip: removed unused definitions from header
staging: usbip: removed dead code from receive function
staging:iio: Drop {mark,unmark}_in_use callbacks
staging:iio: Drop buffer mark_param_change callback
staging:iio: Drop the unused buffer enable() and is_enabled() callbacks
staging:iio: Drop buffer busy flag
staging:iio: Make sure a device is only opened once at a time
staging:iio: Disallow modifying buffer size when buffer is enabled
staging:iio: Disallow changing scan elements in all buffered modes
staging:iio: Use iio_buffer_enabled instead of open coding it
...
Fix up conflict in drivers/staging/iio/adc/ad799x_core.c (removal of
module_init due to using module_i2c_driver() helper, next to removal of
MODULE_ALIAS due to using MODULE_DEVICE_TABLE instead).
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In all existing cases, the calls are coming from a location where
the indio_dev is already available.
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Quite a few iio drivers provide no MODULE_DEVICE_TABLE or MODULE_ALIAS or only
provide a MODULE_ALIAS while they have support for multiple device ids. This
prevents auto module loading from working correctly.
This patch fixes it by adding the missing MODULE_DEVICE_TABLEs and
MODULE_ALIAS'.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Internally the fact that say scale is shared across channels is
actually of remarkably little interest. Hence lets not store it.
Numerous devices have weird combinations of channels sharing
scale anyway so it is not as though this was really telling
us much. Note however that we do still use the shared sysfs
attrs thus massively reducing the number of attrs in complex
drivers.
Side effect is that certain drivers that were abusing this
(mostly my work) needed to do a few more checks on what the
channel they are being queried on actually is.
This is also helpful for in kernel interfaces where we
just want to query the scale and don't care whether it
is shared with other channels or not.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Currently the iio framework uses bitmasks for the address field of channel info
attributes. This is for historical reasons and no longer required since it will
only ever query a single info attribute at once. This patch changes the code to
use the non-shifted iio_chan_info_enum values for the info attribute address.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Issue brought up by Lars-Peter Clausen. This is a varient of what
he suggested.
io/iio.h for driver stuff (has to include types.h)
Sub files for the bits drivers may or may not use
iio/sysfs.h
iio/buffer.h (contents of current buffer_generic.h)
(obviously anything offering events will need events.h as well)
iio/types.h for the enums that matter to both
iio_chan_type, iio_modifier
iio/events.h for the event code stuff
IIO_EVENT_CODE and friends. + everything in chrdev.h So this
is the stuff that userspace cares about.
Also include iio_event_type, iio_event_direction
Thus iio drivers include iio.h + as required
events.h
sysfs.h
buffer.h
in kernel users (once that interface is merged) will need inkern.h
which will pull in types.h
Userspace will need just events.h (which pulls in types.h) to get
everything they need to know about. Buffer userspace access doesn't
currently need any core defines. All information about the data
format is passed through sysfs.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Use the newly introduced module_spi_driver macro for registering SPI drivers.
This allows us to remove a few lines of boilerplate code.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Fix a dumb lack of consideration of the effect of combining
the iio_device_unregister and iio_free_device calls into
one. There is no valid place to free some of the sysfs
array elements.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Numerous drivers either had pointless includes of gpio.h
or should have been dependent on GENERIC_GPIO and were not.
Conversion of ads1210 to use array registration triggered
build failures that highlighted all was not well.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Reported-by: Randy Dunlap <rdunlap@xenotime.net>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Ensure naming reflects what is measured, not how it is done.
Resolvers can measure the same thing for starters.
IIO_GYRO->IIO_ANGL_VEL to ensure consistent naming.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This was originally there to avoid churn during a complex change.
Now everything is stable lets get rid of this as it is missleading
and confusing.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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They aren't always ring buffers, so just use buffer for all naming.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Nothing in this file is specific to RING buffers so rename it.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Lars-Peter Clausen
Jonathan Cameron
Bill Pemberton
Greg Kroah-Hartman
Peter Senna Tschudin
Dan Carpenter
Linus Torvalds
Jonathan Cameron