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path: root/drivers/media/dvb-core/dmxdev.c
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2017-02-03[media] media: dvb: dmx: fixed coding style issues of spacingdevendra sharma
Fixed coding style issues of spacing Signed-off-by: Devendra Sharma <devendra.sharma9091@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-27[media] media: Drop FSF's postal address from the source code filesSakari Ailus
Drop the FSF's postal address from the source code files that typically contain mostly the license text. Of the 628 removed instances, 578 are outdated. The patch has been created with the following command without manual edits: git grep -l "675 Mass Ave\|59 Temple Place\|51 Franklin St" -- \ drivers/media/ include/media|while read i; do i=$i perl -e ' open(F,"< $ENV{i}"); $a=join("", <F>); $a =~ s/[ \t]*\*\n.*You should.*\n.*along with.*\n.*(\n.*USA.*$)?\n//m && $a =~ s/(^.*)Or, (point your browser to) /$1To obtain the license, $2\n$1/m; close(F); open(F, "> $ENV{i}"); print F $a; close(F);'; done Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
2016-12-25ktime: Cleanup ktime_set() usageThomas Gleixner
ktime_set(S,N) was required for the timespec storage type and is still useful for situations where a Seconds and Nanoseconds part of a time value needs to be converted. For anything where the Seconds argument is 0, this is pointless and can be replaced with a simple assignment. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org>
2016-12-24Replace <asm/uaccess.h> with <linux/uaccess.h> globallyLinus Torvalds
This was entirely automated, using the script by Al: PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*<asm/uaccess.h>' sed -i -e "s!$PATT!#include <linux/uaccess.h>!" \ $(git grep -l "$PATT"|grep -v ^include/linux/uaccess.h) to do the replacement at the end of the merge window. Requested-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-10-21[media] dvb-core: get rid of demux optional circular bufferMauro Carvalho Chehab
There is a provision at the dvb_demux.c to use a vmalloc'ed circular buffer, enabled via an extra #ifdef option that it is not at Kconfig. Enabling it will only make the Kernel to allocate/deallocate such buffer, but no code would actually use it. So, no practical effect, except for sparing some memory without any good reason. So, get rid of such dead code. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-10-21[media] dvb-core: use pr_foo() instead of printk()Mauro Carvalho Chehab
The dvb-core directly calls printk() without using the modern printk macros, or using the proper printk levels. Change it to use pr_foo(). Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-08[media] dvb: use ktime_t for internal timeoutArnd Bergmann
The dvb demuxer code uses a 'struct timespec' to pass a timeout as absolute time. This will cause problems on 32-bit architectures in 2038 when time_t overflows, and it is racy with a concurrent settimeofday() call. This patch changes the code to use ktime_get() instead, using the monotonic time base to avoid both the race and the overflow. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-01-11[media] dvb: modify core to implement interfaces/entities at MC new genMauro Carvalho Chehab
The Media Controller New Generation redefines the types for both interfaces and entities to be used on DVB. Make the needed changes at the DVB core for all interfaces, entities and data and interface links to appear in the graph. Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-06[media] dvb: get rid of enum dmx_successMauro Carvalho Chehab
This enum is not actually used anymore. The only value used from the enum is DMX_OK, passed as a parameter on two callbacks. Yet, this value is not used anywhere. So, just remove it. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-06[media] dvb: don't keep support for undocumented featuresMauro Carvalho Chehab
There are two DVB demux callbacks and ioctls that aren't documented and aren't used at all by the DVB core or by any DVB driver upstream. Let's comment out the code for those two ioctls and remove on some future version. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-26[media] dvb core: rename the media controller entitiesMauro Carvalho Chehab
Prefix all DVB media controller entities with "dvb-" and use dash instead of underline at the names. Requested-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-13[media] dmxdev: add support for demux/dvr nodes at media controllerMauro Carvalho Chehab
Make the dvb core demux support aware of the media controller and register the corresponding devices. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-09-03[media] dmxdev: don't use before checking file->private_dataMauro Carvalho Chehab
As reported by smatch: drivers/media/dvb-core/dmxdev.c:1091 dvb_demux_poll() warn: variable dereferenced before check 'dmxdevfilter' (see line 1088) This was introduced by changeset d102cac8097c. We need to test before using it. Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-09-02[media] media: check status of dmxdev->exit in poll functions of demux&dvrChangbing Xiong
when usb-type tuner is pulled out, user applications did not close device's FD, and go on polling the device, we should return POLLERR directly. Signed-off-by: Changbing Xiong <cb.xiong@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-09-02[media] media: correct return value in dvb_demux_pollChangbing Xiong
Data type of return value is unsigned int, but in function of dvb_demux_poll, when the pointer of dmxdevfilter equals NULL, it will return -EINVAL, which is invalid. Signed-off-by: Changbing Xiong <cb.xiong@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-24dmxdev: get rid of pointless clearing ->f_opAl Viro
nobody else will see that struct file after return from ->release() anyway; just leave ->f_op as is and let __fput() do that fops_put(). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-06-19[media] media: dmxdev: remove dvb_ringbuffer_flush() on writer sideSoeren Moch
In dvb_ringbuffer lock-less synchronizationof reader and writer threads is done with separateread and write pointers. Sincedvb_ringbuffer_flush() modifies the read pointer, this function must not be called from the writer thread. This patch removes the dvb_ringbuffer_flush() calls in the dmxdev ringbuffer write functions, this fixes Oopses "Unable to handle kernel paging request" I could observe for the call chaindvb_demux_read ->dvb_dmxdev_buffer_read -> dvb_ringbuffer_read_user -> __copy_to_user (the reader side of the ringbuffer). The flush calls at the write side are not necessary anyway since ringbuffer_flush is also called in dvb_dmxdev_buffer_read() when an error condition is set in the ringbuffer. This patch should also be applied to stable kernels. Signed-off-by: Soeren Moch <smoch@web.de> CC: <stable@vger.kernel.org> Reviewed-by: Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-04-08[media] demux.h: Remove duplicated enumMauro Carvalho Chehab
"enum dmx_ts_pes" and "typedef enum dmx_pes_type_t" are just the same enum declared twice, since Kernel (2.6.12). There's no reason to duplicate it there, and sparse complains about that: drivers/media/dvb-core/dmxdev.c:600:55: warning: mixing different enum types So, remove the internal define, keeping just the external one. Internally, use only "enum dmx_ts_pes", as it is too late to drop dmx_pes_type_t from the userspace API. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-04[media] mb86a20s: change AGC tuning parametersMauro Carvalho Chehab
Use the AGC settings present on a newer device. The initial settings were taken from one of the first devices with mb86a20s, and there are several reports that this is not working properly on some places. So, instead of keeping using it, get the parameters taken from a newer device. Tests are welcomed. Tested also with cx231xx PixelView SBTVD Hybrid with no regressions noticed so far. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-10-28[media] dmxdev: fix a comparition of unsigned expression warningMauro Carvalho Chehab
drivers/media/dvb-core/dmxdev.c: In function 'dvb_dmxdev_pes_filter_set': drivers/media/dvb-core/dmxdev.c:880:2: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits] Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-08-13[media] dvb: move the dvb core one level upMauro Carvalho Chehab
just like the V4L2 core, move the DVB core to drivers/media, as the intention is to get rid of both "video" and "dvb" directories. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>