Use core-assisted locking so .ioctl can be replaced by .unlocked_ioctl.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Drivers that use v4l2_fh can now use the core framework support of g/s_priority.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
wl1273_device->work is unused. Remove it along with the spurious
flush_scheduled_work() call in wl1273_fm_module_exit().
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Matti Aaltonen <matti.j.aaltonen@nokia.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
drivers/media/radio/wl128x/fmdrv_common.c: In function 'recv_tasklet':
drivers/media/radio/wl128x/fmdrv_common.c:274:4: warning: format '%d' expects type 'int', but argument 4 has type 'long unsigned int'
The result of sizeof() should be printed with %zu.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This module implements V4L2 controls for the Texas Instruments
WL1273 FM Radio and handles the communication with the chip.
Signed-off-by: Matti J. Aaltonen <matti.j.aaltonen@nokia.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
RADIO_WL1273 needs to make sure that the mfd core is built to avoid
build errors:
ERROR: "mfd_add_devices" [drivers/mfd/wl1273-core.ko] undefined!
ERROR: "mfd_remove_devices" [drivers/mfd/wl1273-core.ko] undefined!
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Matti Aaltonen <matti.j.aaltonen@nokia.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This has implementation for FM TX functionality.
It communicates with FM V4l2 module and FM common module.
Signed-off-by: Manjunatha Halli <manjunatha_halli@ti.com>
Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This has implementation for FM RX functionality.
It communicates with FM V4l2 module and FM common module
Signed-off-by: Manjunatha Halli <manjunatha_halli@ti.com>
Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
These are the sources for the common interfaces required by the
FM V4L2 driver for TI WL127x and WL128x chips.
These implement the FM channel-8 protocol communication with the
chip. This makes use of the Shared Transport as its transport.
Signed-off-by: Manjunatha Halli <manjunatha_halli@ti.com>
Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This module interfaces V4L2 subsystem and FM common module.
It registers itself with V4L2 as Radio module.
Signed-off-by: Manjunatha Halli <manjunatha_halli@ti.com>
Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
These are common headers used in FM submodules (FM V4L2,
FM common, FM Rx,and FM TX).
Signed-off-by: Manjunatha Halli <manjunatha_halli@ti.com>
Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
KERNEL_VERSION: 2.6.37
common.c in function ssize_t si470x_fops_read.
1. First mutex_lock on &radio->lock in line 441
2. Second in line 462
I think that mutex in line 462 is not needed.
433static ssize_t si470x_fops_read(struct file *file, char __user *buf,
434 size_t count, loff_t *ppos)
435{
....
441 mutex_lock(&radio->lock);
442 if ((radio->registers[SYSCONFIG1] & SYSCONFIG1_RDS) == 0)
443 si470x_rds_on(radio);
444
445 /* block if no new data available */
446 while (radio->wr_index == radio->rd_index) {
447 if (file->f_flags & O_NONBLOCK) {
448 retval = -EWOULDBLOCK;
449 goto done;
450 }
451 if (wait_event_interruptible(radio->read_queue,
452 radio->wr_index != radio->rd_index) < 0) {
453 retval = -EINTR;
454 goto done;
455 }
456 }
457
458 /* calculate block count from byte count */
459 count /= 3;
460
461 /* copy RDS block out of internal buffer and to user buffer */
462 mutex_lock(&radio->lock);
Found by Linux Device Drivers Verification Project
Remove second mutex.
Signed-off-by: Alexander Strakh <strakh@ispras.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Commit e3c9221519 ("[media] radio-aimslab.c: Fix
gcc 4.5+ bug") removed the include, but introduced new callers of msleep():
| drivers/media/radio/radio-aimslab.c: In function ‘rt_decvol’:
| drivers/media/radio/radio-aimslab.c:76: error: implicit declaration of function ‘msleep’
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Use unlocked_ioctl in v4l2_file_operations. The locking is
already in place.
Signed-off-by: Matti J. Aaltonen <matti.j.aaltonen@nokia.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The si470x i2c and usb driver support the RDS, so this ifdef statement
doesn't need more.
[mchehab@redhat.com: Fix a conflict on it]
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Acked-by: Tobias Lorenz <tobias.lorenz@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The radio-gemtek-pci driver is for the same hardware as the radio-maxiradio
driver which uses the same GemTek PR103 and tea5757 combination and the two
drivers are identical. I chose the maxiradio over the gemtek-pci driver since
the maxiradio has support for mono/stereo detection.
Tested with my gemtek-pci card.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Use the standard USA/Europe frequency range of 87-108 MHz instead of the
arbitrary 50-150 MHz.
Copied from the radio-gemtek-pci driver which supports the same hardware.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
gcc 4.5+ doesn't properly evaluate some inlined expressions.
A previous patch were proposed by Andrew Morton using noinline.
However, the entire inlined function is bogus, so let's just
remove it and be happy.
Reported-by: Andrew Morton <akpm@linux-foundation.org>
Cc: stable@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The naming of the media/rds.h header suggested that it was a generic
RDS header, when in fact it is just a saa6588 module API that is
internal to the kernel.
Rename the header and the struct and defines in it to make this clear.
Also removed the header include in radio-si470x.h (not used anymore)
and from ioctl-number.txt (it's internal to the kernel and never called
from userspace).
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
drivers/media/radio/radio-wl1273.c: In function ‘wl1273_fm_upload_firmware_patch’:
drivers/media/radio/radio-wl1273.c:675:2: warning: ‘n’ may be used uninitialized in this function
drivers/media/radio/radio-wl1273.c:675:2: warning: ‘i’ may be used uninitialized in this function
Those vars are never initialized, and the debug message makes no sense, as it
will show just two random values.
Cc: Matti J. Aaltonen <matti.j.aaltonen@nokia.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This module implements V4L2 controls for the Texas Instruments
WL1273 FM Radio and handles the communication with the chip.
Signed-off-by: Matti J. Aaltonen <matti.j.aaltonen@nokia.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Convert the driver to use regulator framework instead of set_power callback.
This with gpio_reset platform data provide cleaner way to manage chip VIO,
VDD and reset signal inside the driver.
Signed-off-by: Jarkko Nikula <jhnikula@gmail.com>
Cc: Eduardo Valentin <eduardo.valentin@nokia.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Convert the typhoon driver from ioctl to unlocked_ioctl.
When doing this I noticed a bug where curfreq was not initialized correctly
to mutefreq (it wasn't multiplied by 16).
The initialization is now also done before the device node is created.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Convert ioctl to unlocked_ioctl. Note that for this driver the locking
is done inside the sub-device.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Convert from ioctl to unlocked_ioctl using the v4l2 core lock.
Also removed the 'exclusive access' limitation. There was no need for it
and it violates the v4l2 spec as well.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Converted from ioctl to unlocked_ioctl.
This driver already used an internal lock, but it was missing in cadet_open and
cadet_release and it was not used correctly in cadet_read.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The patch converts a bunch of V4L2 radio drivers to unlocked_ioctl.
These are all simple conversions: most already had a lock and so the ioctl
fop could simply be replaced by unlocked_ioctl.
radio-miropcm20.c was converted to use the new V4L2 core lock.
While doing this work I noticed that many of these drivers initialized
some more fields or muted audio or something like that *after* creating
the device node. This should be done before the device node is created
to prevent problems. Especially hal tends to grab a device node as soon
as it is created.
In one or two cases the mutex_init was even done after the device creation!
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The argument isn't used anymore by the functions, remove it.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The big kernel lock has been removed from all these files at some point,
leaving only the #include.
Remove this too as a cleanup.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (505 commits)
[media] af9015: Fix max I2C message size when used with tda18271
[media] IR: initialize ir_raw_event in few more drivers
[media] Guard a divide in v4l1 compat layer
[media] imon: fix nomouse modprobe option
[media] imon: remove redundant change_protocol call
[media] imon: fix my egregious brown paper bag w/rdev/idev split
[media] cafe_ccic: Configure ov7670 correctly
[media] ov7670: allow configuration of image size, clock speed, and I/O method
[media] af9015: support for DigitalNow TinyTwin v3 [1f4d:9016]
[media] af9015: map DigitalNow TinyTwin v2 remote
[media] DigitalNow TinyTwin remote controller
[media] af9015: RC fixes and improvements
videodev2.h.xml: Update to reflect the latest changes at videodev2.h
[media] v4l: document new Bayer and monochrome pixel formats
[media] DocBook/v4l: Add missing formats used on gspca cpia1 and sn9c2028
[media] firedtv: add parameter to fake ca_system_ids in CA_INFO
[media] tm6000: fix a macro coding style issue
tm6000: Remove some ugly debug code
[media] Nova-S-Plus audio line input
[media] [RFC,1/1] V4L2: Use new CAP bits in existing RDS capable drivers
...
- serialize the suspend and resume functions using the global lock.
- do not call usb_autopm_put_interface after a disconnect.
- fix a race when disconnecting the device.
Reported-by: David Ellingsworth <david@identd.dyndns.org>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Acked-by: David Ellingsworth<david@identd.dyndns.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
With the v4l2_i2c_new_subdev* functions now supporting loading modules
based on modaliases, replace the hardcoded module name passed to those
functions by NULL.
As no board seems to use this driver, no platform data has been checked.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Don't hold the lock before unregistering the device, since when the
device is unregistered the datastruct containing the lock may be freed
(if the refcount went to 0).
Also fixed the framework documentation that erroneously suggested the
wrong locking order as well.
Reported-by: David Ellingsworth <david@identd.dyndns.org>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Acked-by: David Ellingsworth <david@identd.dyndns.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Call to i2c_put_adapter was missing in radio_si4713_pdriver_probe and
radio_si4713_pdriver_remove.
Signed-off-by: Jarkko Nikula <jhnikula@gmail.com>
Acked-by: Eduardo Valentin <eduardo.valentin@nokia.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
The patch below updates broken web addresses in the kernel
Signed-off-by: Justin P. Mattock <justinmattock@gmail.com>
Cc: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Finn Thain <fthain@telegraphics.com.au>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Dimitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Mike Frysinger <vapier.adi@gmail.com>
Acked-by: Ben Pfaff <blp@cs.stanford.edu>
Acked-by: Hans J. Koch <hjk@linutronix.de>
Reviewed-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
In case of error during probe() the driver calls free_irq() function
on not yet allocated irq. This patches fixes the call sequence in case of
the error.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This patch to the si470x_vidioc_s_tuner function was developed in
cooperation with Roel Kluin <roel.kluin@gmail.com>. It sets the default
retval to 0 instead of -EINVAL, identical to what is done in all other
set/get functions of v4l2_ioctl_ops. This is just as cosmetic change, as
retval is directly overwritten by the si470x_disconnect_check() anyway.
Signed-off-by: Tobias Lorenz <tobias.lorenz@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
