- 12 Dec, 2011 1 commit
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Mauro Carvalho Chehab authored
This reverts commit ff83bd82. As requested by Antti: From a talk with him at #linuxtv irc, he strong feeling that some apps like MythTV will do a lot a lot of I2C I/O and now it adds locks, with utimatelly means more delays. This could cause bad effects. There is a new patch for 3.3 that re-writes af9013 in order to limit I2C I/O. and thus those patches could be nice to have together because those user who has has problems are most likely MythTV users. So, let's revert this commit for now. Requested-by:
Antti Palosaari <crope@iki.fi> Signed-off-by:
Mauro Carvalho Chehab <mchehab@redhat.com>
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- 11 Dec, 2011 12 commits
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Sylwester Nawrocki authored
When using only subdev user-space operations the camera interface input was not configured properly. Fix this by updating the corresponding data structure in set_fmt operation. Signed-off-by:
Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by:
Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by:
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Thomas Jarosch authored
Detected by "cppcheck". Signed-off-by:
Thomas Jarosch <thomas.jarosch@intra2net.com> Signed-off-by:
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Anssi Hannula authored
The ati_remote driver currently uses 2-byte scancodes. However, one of those bytes is actually a checksum and therefore shouldn't be considered as part of the scancode. Fix the driver to only use the actual data byte as a scancode and to check the checksum itself. Update the bundled keymaps accordingly. Since ati_remote was only migrated to the rc subsystem for 3.2, the previous scancodes weren't emitted on any stable kernel. Reported-by:
George Spelvin <linux@horizon.com> Signed-off-by:
Anssi Hannula <anssi.hannula@iki.fi> Signed-off-by:
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Guennadi Liakhovetski authored
Signed-off-by:
Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by:
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Janusz Krzysztofik authored
Otherwise compilation breaks with: ... after apparently no longer included recursively from other header files. Signed-off-by:
Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Signed-off-by:
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Dan Carpenter authored
priv gets dereferenced in mt9t112_set_params() so we should return before calling that. Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
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Guennadi Liakhovetski authored
On 64-bit platforms assigning a pointer to a 32-bit variable causes a compiler warning and cannot actually work. Soc-camera currently doesn't support any 64-bit systems, but such platforms can be added in the and in any case compiler warnings should be avoided. Signed-off-by:
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Peter Korsgaard authored
Signed-off-by:
Peter Korsgaard <jacmet@sunsite.dk> Aked-by:
Kamil Debski <k.debski@samsung.com> Signed-off-by:
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Gary Thomas authored
This patch is against the mainline v3.1 release (c3b92c87) and fixes a compile error when building for OMAP3+DSS+VOUT Acked-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by:
Gary Thomas <gary@mlbassoc.com> Cc: stable@kernel.org Signed-off-by:
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Michael Krufky authored
Signed-off-by:
Michael Krufky <mkrufky@linuxtv.org> Signed-off-by:
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Michael Krufky authored
Signed-off-by:
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Michael Krufky authored
Signed-off-by:
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- 09 Dec, 2011 1 commit
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Joe Perches authored
Likely misuse of & vs &&. Signed-off-by:
Joe Perches <joe@perches.com> Acked-by:
Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by:
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- 07 Dec, 2011 1 commit
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Tomi Valkeinen authored
omap_vout crashes on start if a corresponding driver is not loaded for a display device. This patch changes omap_vout init sequence to skip devices without a driver. Signed-off-by:
Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by:
Vaibhav Hiremath <hvaibhav@ti.com> Signed-off-by:
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- 24 Nov, 2011 16 commits
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Marek Szyprowski authored
This patch fixes following build break: Signed-off-by:
Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by:
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Dmitry Artamonow authored
Fix following build error by explicitely including <linux/module.h> header file. CC drivers/media/video/omap3isp/ispvideo.o Signed-off-by:
Dmitry Artamonow <mad_soft@inbox.ru> Acked-by:
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Sylwester Nawrocki authored
In case pixel format is modified in set_fmt by the driver, the changes are not propagated back to the caller. Fix this by adjusting passed data for TRY and ACTIVE format. Also remove redundant pixel format code information from struct m5mols_info, it's already available in 'ffmt' array. Remove pad number validation in set/get_fmt, this is already done in the core. Signed-off-by:
HeungJun Kim <riverful.kim@samsung.com> Signed-off-by:
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Sylwester Nawrocki authored
With 16-bit RGB565 colour format pixels are stored by the device in memory in the following order: | b3 | b2 | b1 | b0 | ~+-----+-----+-----+-----+ | R5 G6 B5 | R5 G6 B5 | This corresponds to V4L2_PIX_FMT_RGB565 fourcc, not V4L2_PIX_FMT_RGB565X. This change is required to avoid trouble when setting up video pipeline with the s5p-tv devices, so the colour formats at both devices can be properly matched. Cc: <stable@kernel.org> Signed-off-by: -
Sylwester Nawrocki authored
When a sensor with MIPI-CSI interface is attached through platform data definition and the MIPI-CSI receiver is not selected in kernel configuration s5p-fimc driver probe() will now succeed, issuing only a warning. It was done this way to allow the driver to work even if system configuration is not exactly right. Instead make the driver's probe() fail if a MIPI-CSI sensor was requested but s5p-csis module is not present. Signed-off-by:
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Sylwester Nawrocki authored
Minimum vertical pixel size alignment for input and output DMA and the scaler depend on color format, rotation, the IP instance and revision. Make vertical pixel size of format and crop better fit for each SoC revision and the IP instance by adding min_vsize_align attribute to the FIMC variant data structure. It's now common for the DMA engines and the scaler. Signed-off-by:
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Sylwester Nawrocki authored
The "s5p-fimc-md" platform device platform_data is used to pass attached camera sensor data. Not allowing device probe() to succeed when it's null prevents using FIMC as a mem-to-mem device only. Fix this by removing the platform_data check against null and registering sensors only if platform_data is specified. Also add logging of the information which /dev/video is assigned to which device during probe(). Signed-off-by:
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Sylwester Nawrocki authored
When requested more than 2 buffers the buffer dequeue order was wrong due to erroneous updating FIMC registers in every interrupt handler call. This also fixes regression of resetting the output DMA buffer pointer at wrong time, when some buffers are already queued in hardware. The hardware is reset in the start_streaming callback in order to align the H/W state with the software output buffer pointer (buf_index). Additionally a simple write to S5P_CISCCTRL register is replaced with a read/modification/write to make sure the scaler is not being disabled in fimc_hw_set_scaler(). Signed-off-by:
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Sylwester Nawrocki authored
ST_LPM bit must not be initially set, so the first resume helper call properly quiesce the device's operation. Also fimc_runtime_suspend() at device remove is unneeded and leads to unbalanced clock disable so remove it. Signed-off-by:
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Sylwester Nawrocki authored
Make sure the subdev pointer is cleared when the subdev object has been freed. Signed-off-by:
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Sylwester Nawrocki authored
After i2c_unregister_device() has been called the client object can already be freed and thus using the client pointer may lead to dereferencing freed memory. Avoid this by saving the adapter pointer for further use before i2c_unregister_device() call. Signed-off-by:
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Randy Dunlap authored
Fix x86 allyesconfig builds. Builds fail due to a non-static variable named 'debug' in drivers/staging/media/as102/. Signed-off-by:
Randy Dunlap <rdunlap@xenotime.net> Cc: Pierrick Hascoet <pierrick.hascoet@abilis.com> Signed-off-by:
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Mauro Carvalho Chehab authored
Now that we've created a /drivers/staging/media, put it together with /drivers/media. Also, added there a missing entry for the Media API spec. Signed-off-by: -
Antti Palosaari authored
Register to read should be written to register 0xfb and then perform I2C read to get reg value. Signed-off-by:
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Antti Palosaari authored
Default IF for 6 MHz bandwidth is 3 MHz. Use that. Signed-off-by:
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Antti Palosaari authored
AF9015 firmware does not like if it gets interrupted by I2C adapter request on some critical phases. During normal operation I2C adapter is used only 2nd demodulator and tuner on dual tuner devices. Override demodulator callbacks and use mutex for limit access to those "critical" paths to keep AF9015 happy. Signed-off-by:
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- 08 Nov, 2011 9 commits
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Hans de Goede authored
Otherwise the fh changing the master control won't get the inactive state change event for the slave controls. Signed-off-by:
Hans de Goede <hdegoede@redhat.com> Signed-off-by:
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Hans de Goede authored
Setting sev->fh to NULL causes problems for the del op added in the next patch of this series, since this op needs a way to get to its own data structures, and typically this will be done by using container_of on an embedded v4l2_fh struct. The reason the original code is setting sev->fh to NULL is to signal to users of the event framework that the unsubscription has happened, but since their is no shared lock between the event framework and users of it, this is inherently racy, and it also turns out to be unnecessary as long as both the event framework and the user of the framework do their own locking properly and the user guarantees that it holds no references to the subcribed_event structure after its del operation has been called. This is best explained by looking at the only code currently checking for sev->fh being set to NULL on unsubscribe, which is the v4l2-ctrls.c send_event function. Here is the relevant code from v4l2-ctrls: send_event(): if (sev->fh && (sev->fh != fh || (sev->flags & V4L2_EVENT_SUB_FL_ALLOW_FEEDBACK))) v4l2_event_queue_fh(sev->fh, &ev); Now lets say that v4l2_event_unsubscribe and v4l2-ctrls: send_event() race on the same sev, then the following could happens: 1) send_event checks sev->fh, finds it is not NULL <thread switch> 2) v4l2_event_unsubscribe sets sev->fh NULL 3) v4l2_event_unsubscribe calls v4l2_ctrls del_event function, this blocks as the thread calling send_event holds the ctrl_lock <thread switch> 4) send_event calls v4l2_event_queue_fh(sev->fh, &ev) which not is equivalent to calling: v4l2_event_queue_fh(NULL, &ev) 5) oops, NULL pointer deref. Now again without setting sev->fh to NULL in v4l2_event_unsubscribe and without the (now senseless since always true) sev->fh != NULL check in 1) send_event is about to call v4l2_event_queue_fh(sev->fh, &ev) <thread switch> 2) v4l2_event_unsubscribe removes sev->list from the fh->subscribed list <thread switch> 3) send_event calls v4l2_event_queue_fh(sev->fh, &ev) 4) v4l2_event_queue_fh blocks on the fh_lock spinlock <thread switch> 5) v4l2_event_unsubscribe unlocks the fh_lock spinlock 6) v4l2_event_unsubscribe calls v4l2_ctrls del_event function, this blocks as the thread calling send_event holds the ctrl_lock <thread switch> 8) v4l2_event_queue_fh takes the fh_lock 7) v4l2_event_queue_fh calls v4l2_event_subscribed, does not find it since sev->list has been removed from fh->subscribed already -> does nothing 9) v4l2_event_queue_fh releases the fh_lock 10) the caller of send_event releases the ctrl lock (mutex) <thread switch> 11) v4l2_ctrls del_event takes the ctrl lock 12) v4l2_ctrls del_event removes sev->node from the ev_subs list 13) v4l2_ctrls del_event releases the ctrl lock 14) v4l2_event_unsubscribe frees the sev, to which no references are being held anymore Signed-off-by:Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by:
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Hans de Goede authored
The kev pointers inside the pending events queue (the available queue) of the fh point to data inside the sev, unsubscribing frees the sev, thus making these pointers point to freed memory! This patch fixes these dangling pointers in the available queue by removing all matching pending events on unsubscription. Signed-off-by:
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Hans de Goede authored
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Jeongtae Park authored
Add a maintainer for s5p-mfc driver. Signed-off-by:
Jeongtae Park <jtp.park@samsung.com> Acked-by:
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Kamil Debski authored
MFC uses the multi-plane API, but it reported single-plane when querying capabilities. Signed-off-by:
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Marek Szyprowski authored
Queued list was not reset on REQBUFS(0) call. This caused to enqueue a freed buffer to the driver. Reported-by:
Angela Wan <angela.j.wan@gmail.com> Signed-off-by:
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Marek Szyprowski authored
v4l2_planes[plane].length field was not initialized for userptr buffers. This patch fixes this issue. Signed-off-by:
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Marek Szyprowski authored
__buffer_in_use() might be called for empty/uninitialized buffer in the following scenario: REQBUF(n, USER_PTR), QUERYBUF(). This patch fixes kernel ops in such case. Signed-off-by:
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