This patch adds support for the Analog Devices AD5360, AD5361, AD5362, AD5363,
AD5370, AD5371, AD5372, AD5373 multi-channel digital-to-analog converters.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
There were no range checks in the original code so the user could
write past the end of the array.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The indents didn't line up at all in the original code. I also fixed
a bunch of other white issues as I went along. I changed the comment
style and removed some commented out code.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
We need to verify that we're not writing past the end of the array.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The indents on this file didn't line up so it was hard to work with.
I changed other white space issues as I came across them. I also
deleted or changed some couple comments and the comment style.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Some defines are no longer referenced in the code, so removed them.
Signed-off-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Replaced pci map/unmap and set_mask calls with their dma equivalents.
Also updated comments to reflect this.
Signed-off-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* Currently the tx queue is only stopped when the current packet fails.
Check if the next packet will fail, and stop the queue if so.
* Removed associated item from TODO list in the README.
* Also minor fixup as adapter was being declared as null and immediately set
to a value.
Signed-off-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Used the convenience macros DEFINE_PCI_DEVICE_TABLE and PCI_VDEVICE to
tidy up the device table definition.
Also remove the corresponding TODO item from the README.
Signed-off-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Previous update was to replace pci_alloc with dma_alloc calls. I missed
replacing the corresponding pci_free_ calls with the dma versions. Now
done. Thanks to Denis Kirjanov <kirjanov@gmail.com> for pointing this
out.
Signed-off-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Use dma_allocs instead of pci_allocs, so we can use GFP_KERNEL
allocations.
Also removed this item from the TODO list
Signed-off-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* Following on from making rx_ring.fbr use a common structure - reversed
the fbr[] array indicies so that index 1 = FBR0 and index 0 = FBR1,
which allows USE_FBR0 define to work.
* Also fixed up minor issues where indexes into the array were out of
bounds in some places.
* Removed rx_ring.fbr common stuct TODO item from README
Signed-off-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Sharing a common structure by moving common structure items into
fbr_lookup.
TODO - Currently will not work if USE_FBR0 = 0 as FBR1 uses fbr[1]
which is removed in this case
Signed-off-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Two helper functions for adding 10bit/12bit umbers with wrapping are
defined in the header. Moved them to the driver .c file.
Signed-off-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Driver now resides in a single file with a separate header with
registers, updated the README TODO list.
Signed-off-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Header file should only have register defines, moved non-register
defines to et131x.c
Signed-off-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The function declarations in et131x.h are no longer used now all
functions are in one file. Removed declarations from et131x.h and
added any required forward declarations to et131x.c.
Signed-off-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Created one big .c file for the driver, moving the contents of all
driver .c files into it.
Signed-off-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Currently it is possible to write negative values to the ad5686's raw attribute.
This will cause undefined behaviour, so reject negative values.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Scale is currently reported in volts instead of millivolts. This patch fixes it.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The ad5791 currently assumes that the negative and positive supply have the
same absolute value, which is not necessarily true. This patch introduces a
offset attribute which will contain the negative supply voltage scaled
according to the iio spec. The raw attribute now accepts values in the range
of 0 to max instead of -max/2 to max/2.
While we are at it also fix the vref span calculation. Since both positive and
negative reference voltages are specificed as absolute values we need to add
them and not subtract them to get the reference voltage span.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Commit c5b99396 ("staging:iio:dac:ad5791 chan spec conversion.") introduced a
small bug, using storagebits instead of realbits throughout the driver, which
causes the driver to work incorrectly. This patch fixes it.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch adds support for the Analog Devices AD6064, AD6064-1, AD6044, AD6024
quad channel digital-to-analog converter devices.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
According to OMAP3 TRM access to MMU registers shall be strictly 32-bit
aligned.
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Acked-by: Omar Ramirez Luna <omar.ramirez@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The original code left it up to the user to decide how much data to
copy, but that doesn't work with a fixed size array.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
There's a lot of unused and unneeded things in this makefile, so delete
it all.
Reported-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
There's a lot of unused and unneeded things in this makefile, so delete
it all.
Reported-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
There's a lot of unused and unneeded things in this makefile, so delete
it all.
Reported-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Previously, the device-driver matching mechanism depended on the
vme_device_id structure due to the need for a bind table per driver.
This method of matching is no longer used so this patch merges the
fields of struct vme_device_id into struct vme_dev. Since this also
renders the slot field meaningless, it has also been removed in this
patch.
Signed-off-by: Manohar Vanga <manohar.vanga@cern.ch>
Cc: Martyn Welch <martyn.welch@ge.com>
Reviewed-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
For jumper based boards (non VME64x), there is no mechanism
for detecting the card that is plugged into a specific slot. This
leads to issues in non-autodiscovery crates/cards when a card is
plugged into a slot that is "claimed" by a different driver. In
reality, there is no problem, but the driver rejects such a
configuration due to its dependence on the concept of slots.
This patch makes the concept of slots less critical and pushes the
driver match() to individual drivers (similar to what happens in the
ISA bus in driver/base/isa.c). This allows drivers to register the
number of devices that they expect without any restrictions. Devices
in this new model are now formatted as $driver_name-$bus_id.$device_id
(as compared to the earlier vme-$bus_id.$slot_number).
This model also makes the device model more logical as devices
are only registered when they actually exist whereas earlier,
a set of devices were being created automatically regardless of
them actually being there.
Another change introduced in this patch is that devices are now created
within the VME driver structure rather than in the VME bridge structure.
This way, things don't go haywire if the bridge driver is removed while
a driver is using it.
Signed-off-by: Manohar Vanga <manohar.vanga@cern.ch>
Cc: Martyn Welch <martyn.welch@ge.com>
Reviewed-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Instead of using a vanilla 'struct device' for VME devices, add new
'struct vme_dev'. Modifications have been made to the VME framework
API as well as all in-tree VME drivers.
The new vme_dev structure has the following advantages from the
current model used by the driver:
* Driver functions (probe, remove) now receive a VME device
instead of a pointer to the bridge device (cleaner design)
* It's easier to differenciate API calls as bridge-based or
device-based (ie. cleaner interface).
Signed-off-by: Manohar Vanga <manohar.vanga@cern.ch>
Cc: Martyn Welch <martyn.welch@ge.com>
Reviewed-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Very simple buffered reading. Did not provide a trigger as
the sysfs trigger already meets that requirement.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The event generator is not very pretty but does the job and
allows this driver to look a lot more like a normal driver
than it otherwise would.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The documenation explaining how to go about writing a driver is lagging
horribly, so here is another approach; an actual driver with
lots of explanatory comments.
Note it is currently minimal in that there are no events and no
buffer. With care they can probably be added in additional files
without messing up the clarity of what we have here.
V2: Addressed some of Manuel Stahl's feedback.
Fixed up kernel doc.
Added more general description.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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>
