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path: root/drivers/staging/iio/adc/max1363_core.c
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2012-11-10staging:iio:adc:max1363 consolidate files.Jonathan Cameron
For a long while now the max1363 core has selected the buffer anyway. For a while I meant to make the separation work again, but given how long it has been it is probably time to conclude it will never happen and settle for tidying up what we have. Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-09-03staging:iio: Update email address for Jonathan Cameron.iio-for-v3.7bJonathan Cameron
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-08-27staging:iio: Add missing __devinit and __devexit annotationsLars-Peter Clausen
Autogenerated using the following coccinelle semantic patch: // <smpl> @r1@ identifier driver; identifier fn; position p; type T; @@ T driver = { .remove = ( fn@p | __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) | -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>
2012-08-14staging:iio: Constify static iio_chan_spec arraysLars-Peter Clausen
The per driver iio_chan_spec arrays are usually shared between multiple device instances. So a single device instance may not modify the iio_chan_spec array since this would also affect the other device instances. To make this restriction explicit mark the per driver iio_chan_spec arrays as const. Conversion was done automatically using the following coccinelle semantic patch: // <smpl> @disable optional_qualifier@ identifier channels; @@ static +const struct iio_chan_spec channels[] = ...; // </smpl> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-05-14staging:iio:adc: Use dev_to_iio_dev()Lars-Peter Clausen
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>
2012-04-29staging:iio: Streamline API function namingLars-Peter Clausen
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>
2012-04-25IIO: Move core headers to include/linux/iioJonathan Cameron
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>
2012-04-18staging:iio:adc Add IIO_CHAN_INFO_RAW entries to all drivers.Jonathan Cameron
Precursor to making value read / write attribute optional. No processed values for adc's. Updated to include the spear adc driver (hence introducing a dependency on the patch that adds that driver). 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>
2012-04-10staging:iio:max1363 enable use with inkernel interfaces.Jonathan Cameron
Signed-off-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-10staging:iio:adc:max1363 fix missing update_scan_mask callback.Jonathan Cameron
When moving over to the new sw_ring_preenable I managed to add this callback to only one of the two iio_info structures. As such only some devices will currently work. Signed-off-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-02drivers:staging:iio Fix typos and comments in staging iio.Justin P. Mattock
The below patch fixes some comments and some typos that I have found while reading drivers/staging/iio/* Signed-off-by: Justin P. Mattock <justinmattock@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-24iio: core: constitfy available_scan_maskMichael Hennerich
The core must not modify available_scan_mask, because it causes problems with drivers where multiple instances of the driver share the same mask set. So make this explicit by marking available scan masks as const. The max1363 driver needs some minor adjustment to accommodate this change. Pull scan mask allocation into a separate function. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-13staging:iio: Rename IIO_EVENT_CODE_EXTRACT_NUM to IIO_EVENT_CODE_EXTRACT_CHANLars-Peter Clausen
We name this field "chan" throughout IIO with the exception of this one macro. Rename it to be more consistent. 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>
2012-01-09Merge branch 'staging-next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging * '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).
2011-12-08staging:iio:adc:max1363 stop reading from buffer for sysfs accessJonathan Cameron
No known use case and makes in kernel interface work more complex. Signed-off-by: Jonathan Cameron <jic23@kernel.org> Acked-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-12-08staging:iio:adc:max1363 add datasheet_name entries.Jonathan Cameron
Kind of obvious for this device but useful for testing purposes. Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-12-08staging:iio:adc:max1363 correctly set channels as big endian.Jonathan Cameron
Also, the differential channels should always have been signed. Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-12-08staging:iio:adc:max1363 use new demuxing support.Jonathan Cameron
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-26staging:iio:treewide only use shared to decide on interfacesJonathan Cameron
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>
2011-11-26staging:iio: Do not use bitmasks for channel info addressesLars-Peter Clausen
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>
2011-11-26staging:iio: header reorganizationJonathan Cameron
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>
2011-11-17staging:iio: Use module_i2c_driver to register I2C driversLars-Peter Clausen
Use the newly introduced module_i2c_driver macro for registering I2C drivers. This allows us to remove a few lines of boilerplate code. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Jonathan Cameron <jic23@kernel.org> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-10-17staging:iio:adc:max1363 incorrect allocation of available_scanmasksJonathan Cameron
Longs are not known for being 8 bits. Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-10-17staging:iio: fix removal path to allow correct freeing.Jonathan Cameron
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>
2011-09-29staging:iio: unwind the IIO_IN -> IIO_VOLTAGE defineJonathan Cameron
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>
2011-09-26staging:iio: replacing term ring with buffer in the IIO core.Jonathan Cameron
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>
2011-09-26staging:iio: rename ring_generic.h -> buffer_generic.hJonathan Cameron
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>
2011-09-06staging:iio: Differential channel handling - use explicit flag rather than ↵Jonathan Cameron
types. Straight forward change in the core, but required some drivers to not use the IIO_CHAN macro as that doesn't allow setting this bit (and is going away anyway). Hence the churn. Tested on max1363 with a couple of supported parts. V2: differential bit in code got 7 bits and direction 1. Reversed that. Issue spotted by Michael - thanks! 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>
2011-09-06staging:iio: rework of attribute registration.Jonathan Cameron
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>
2011-09-06staging:iio:events - new 64 bit code structure and push out drivers.Jonathan Cameron
This costs us nothing in event storage (as we are carrying a 64 bit timestamp in the structure) and gives us lots more room to play with. Also allows for more channels which some parts need. V2: Cleanup some loose ends (such as the switch with only one option now). Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-09-06staging:iio: Switch the channel masks to bitmaps so as to allow for more ↵Jonathan Cameron
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>
2011-09-06staging:iio:buffering cleanup ring_buffer_register_ex naming.Jonathan Cameron
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>
2011-09-06staging:iio: remove broken support for multiple event interfaces.Jonathan Cameron
We don't have a use case for these. Two drivers appeared to use them but both report all events on the first. V2: Remove now irrelevant comment. V3: Include fixup for adc/ad7280a.c 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>
2011-09-06staging: iio: push the main buffer chrdev down to the top level.Jonathan Cameron
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>
2011-09-06staging: iio: remove specific chrdev for event reading. Get fd from ioctl on ↵Jonathan Cameron
buffer. Change suggested by Arnd Bergmann. No real reason to have two chrdevs per device. This step merges them into one. Currently this means that events will only work on devices with buffers. THat will be remedied shortly. V2: set name for event attribute groups. Otherwise they all sorts of fun occurs on dynamic channel event attribute creation. 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>
2011-08-25staging: Add module.h to drivers/staging usersPaul Gortmaker
Lots of people expect module.h to just "be there" without any #include effort. But we are crushing that. So fix those files in staging relying on implicit module.h presence. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-23staging:iio:events: use IIO_<TYPE> and IIO_MOD_<> instead of ↵Jonathan Cameron
IIO_EV_CLASS_<TYPE> etc The original definitions were duplicated to reduce tree churn during introduction of chan_spec registration. Now there is no point in maintaining the two sets of definitions. 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>
2011-08-23staging:iio:adc: unused header removals.Jonathan Cameron
More headers now not needed after iio_chan_spec conversions. A couple of drivers were using helpers from adc.h. Given these were trivial, they are pushed down into the drivers. Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-23staging:iio:adc: max1363 fix 2 raw sysfs issues.Jonathan Cameron
indio_dev->channels was accidentally removed thus preventing any sysfs registrations occuring for direct reading. That hid the other issue. Unfortunately the incorrect handling leads to misspresentation of data in sysfs reads. Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-06-28Staging: iio: dereferencing uninitialized variableDan Carpenter
In the error handling, it dereferences "st" before it has been initialized. I also just tidied it up a bit to remove some extra conditions. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-19staging:iio:max1363 misc cleanups and use of for_each_bit_set to simplify ↵Jonathan Cameron
event code spitting out. Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-19staging:iio: implement an iio_info structure to take some of the constant ↵Jonathan Cameron
elements out of iio_dev. This was suggested by Arnd Bergmann, Other elements may well move in here in future, but it definitely makes sense for these. Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-19staging:iio:max1363 add new 2 channels parts form maxim, 11644-7Jonathan Cameron
V2: IIO_CHAN macro usage update. Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-19staging:iio: use the new central name attribute creation codeJonathan Cameron
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-19staging:iio:adc:max1363 move to irqchip based threaded irq triggeringJonathan Cameron
V2: Fixed missing free of pollfunc->name as pointed out by Michael Hennerich. Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-19staging:iio: Remove legacy event handling.Jonathan Cameron
This requires all drivers using the channel registration code and events to change in one go. V3: remove unwanted irq enable from event handler. V2: rebase related fixes to move to new IIO_CHAN macro. All trivial. Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-19staging:iio:max1363 - move to channel_spec registration.Jonathan Cameron
V3: move to single chan registration macro. Also introduce some local macros to greatly reduce code length when setting up the chan_spec arrays for all the different devices. V2: update read_raw for two value approach. Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-25staging:iio:max1363 take advantage of new iio_device_allocate private data.Jonathan Cameron
The only fiddly bit in here was ensuring the regulator was available until after the free had occured. Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-25staging:iio:adc: max1363 dev_info -> indio_dev in naming for consistencyJonathan Cameron
Either name is fine, so went with the most common. Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-25staging:iio:adc:max1363 fix timestamp handling.Jonathan Cameron
Not only was this not compliant with the abi, it was also missconfiguring the buffer. Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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