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Author SHA1 Message Date
Jonathan Cameron
d2fffd6c2f staging:iio: fix removal path to allow correct freeing.
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>
2011-10-17 15:34:53 -07:00
Jonathan Cameron
638e59fc8c staging:iio:dac/dds/impedance dev_info to indio_dev for consistency
We had a random missmatch of these two.  Lets pick the most common
and get rid of the other.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>

For adxxxx parts
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-10-11 09:58:59 -06:00
Paul Gortmaker
748b636c40 staging: add module.h to various iio drivers
Since they are assuming it is there implicitly and will fail otherwise
with things like:

drivers/staging/iio/impedance-analyzer/ad5933.c:816: warning: type
 defaults to ‘int’ in declaration of ‘MODULE_AUTHOR’

drivers/staging/iio/adc/ad7280a.c:990: warning: type defaults to ‘int’
 in declaration of ‘MODULE_AUTHOR’

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-10-03 16:07:51 -07:00
Jonathan Cameron
6835cb6b43 staging:iio: unwind the IIO_IN -> IIO_VOLTAGE define
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>
2011-09-29 17:32:07 -07:00
Jonathan Cameron
14555b1445 staging:iio: replacing term ring with buffer in the IIO core.
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>
2011-09-26 17:31:53 -07:00
Jonathan Cameron
3811cd6291 staging:iio: rename ring_generic.h -> buffer_generic.h
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>
2011-09-26 17:31:53 -07:00
Jonathan Cameron
f2a96245ba staging:iio: tree wide IIO_RING_BUFFER config symbol to IIO_BUFFER
Functionality is generic, so name is missleading.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-09-26 17:31:53 -07:00
Jonathan Cameron
ec3afa40c6 staging:iio: tree wide IIO_RING_TRIGGERED -> IIO_BUFFER_TRIGGERED
also, IIO_RING_HARDWARE_BUFFER -> IIO_BUFFER_HARDWARE

These aren't always rings so the naming should not imply that.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-09-26 17:31:52 -07:00
Manuel Stahl
0aeac51d1b staging: iio: Move sensor drivers to sub menus
We have a lot of drivers now, so the iio sub menu becomes quite large.
This patch creates sub menus for the different sensors.

Signed-off-by: Manuel Stahl <manuel.stahl@iis.fraunhofer.de>
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-09-26 17:31:50 -07:00
Jonathan Cameron
322c956367 staging:iio:tree wide. abi fixup for in_ out_ prefix introduction.
This patch set should bring all the attributes created outside
of chan_spec registration inline with the new abi.

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>
2011-09-16 20:32:00 +02:00
Jonathan Cameron
26d25ae3f0 staging:iio: rework of attribute registration.
This set also includes quite a number of bug fixes of particularly
remove functions.

Necessary due to issue pointed out in Bart Van Assche's patch:
docs/driver-model: Document device.groups

V2: Rebase due to patch reordering.
V3: Pull various error fixes and cleanups out into their own patches.

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>
2011-09-06 16:02:01 -07:00
Jonathan Cameron
32b5eecab0 staging:iio: Switch the channel masks to bitmaps so as to allow for more channels.
This is as light as possible on changes to current drivers.
Some drivers make assumptions that their masks fit in a single
long.  Given they were previously working this is clearly valid if
not tidy.

The max1363 is an example where there should be no such assumptions.

V2: Add the new ad5933

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>
2011-09-06 16:01:59 -07:00
Jonathan Cameron
c009f7e426 staging:iio:buffering cleanup ring_buffer_register_ex naming.
Now the old method is long gone, lets get rid of the _ex and whilst
here remove the unused id parameter.

Trivial mechanical change, but will break any out of tree drivers
using this.

V2: rebase
V3: rebase

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-09-06 16:00:28 -07:00
Jonathan Cameron
1aa0427832 staging: iio: push the main buffer chrdev down to the top level.
Sorry all, this one is very invasive, though the driver changes are
just trivial interface fixes. Not all done yet.

V2 - bring the sca3000 with us.
V3 - fix ade7758 bugs in conversion.
V4 - add ad5933

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>
2011-09-06 15:59:10 -07:00
Michael Hennerich
f94aa354d6 iio: impedance-analyzer: New driver for AD5933/4 Impedance Converter, Network Analyzer
The AD5933 is a high precision impedance converter system solution
that combines an on-board frequency generator with a 12-bit, 1 MSPS,
analog-to-digital converter (ADC). The frequency generator allows an
external complex impedance to be excited with a known frequency.

The response signal from the impedance is sampled by the on-board ADC
and a discrete Fourier transform (DFT) is processed by an on-chip DSP engine.
The DFT algorithm returns a real (R) and imaginary (I) data-word at each
output frequency.

Changes since V1:

Apply list review feedback:
Consistently use poll_time_jiffies.
Use be|le cpu endian helpers where applicable.
Add various comments.

Changes since V2:

Fix KernelVersion tag in Documentation.
Declare ad5933_default_pdata static.
Fix typos.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-23 13:37:02 -07:00