- 24 Nov, 2011 13 commits
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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 <s.nawrocki@samsung.com> Signed-off-by:
Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by:
Mauro Carvalho Chehab <mchehab@redhat.com>
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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:
Antti Palosaari <crope@iki.fi> 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
Signed-off-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by:
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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:
Marek Szyprowski <m.szyprowski@samsung.com> Acked-by:
Kamil Debski <k.debski@samsung.com> Signed-off-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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- 07 Nov, 2011 5 commits
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Michael Krufky authored
fix build warning: variable ‘ret’ set but not used in function ‘mxl111sf_i2c_readagain’ 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
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Michael Krufky authored
mxl111sf_idac_config was incorrectly returning val instead of ret Signed-off-by:
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Hans de Goede authored
Currently it is also being checked for non BITMAP type menu controls, breaking the logitech LED control menu added by uvcdynctrl, as well as potentially breaking the powerline frequency menu. Signed-off-by:
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- 03 Nov, 2011 13 commits
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Timo Kokkonen authored
If the said config optio is not set, the compiler will spill out many warnings about statements with no effect, such as: Casting the zero to void will cure the warning. Signed-off-by:
Timo Kokkonen <kaapeli@itanic.dy.fi> Signed-off-by:
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Malcolm Priestley authored
Support for single ITE 9135 device. Only single devices have been tested. Dual ITE 9135 devices should work, but have not been tested. TODOs support for ver 2 chip config for other tuner types. rework of firmware file. Signed-off-by:
Malcolm Priestley <tvboxspy@gmail.com> Signed-off-by:
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Teka authored
Hi, This is a little patch to support Terratec G1 (based on Terratec Grabby). It works perfectly on my pc (Ubuntu 11.04 / Kernel 2.6.38). Best regards, Signed-off-by: -
Dan Carpenter authored
If "i" is 2 then when we call cx25821_video_mux() we'd end up going past the end of the cx25821_boards[dev->board]->input[]. The INPUT() macro obfuscates what's going on in that function so it's a bit hard to follow. And as Mauro points out the hard coded 2 is not very helpful. Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
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Paul Bolle authored
The Kconfig symbol RADIO_TEA5764_XTAL is unused. The code does use a RADIO_TEA5764_XTAL macro, but does that rather peculiar. But there seems to be a way to keep both. (The easiest way out would be to rip out both the Kconfig symbol and the macro.) Note there's also a module parameter 'use_xtal' to influence all this. Signed-off-by:
Paul Bolle <pebolle@tiscali.nl> Acked-by:
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Laurent Pinchart authored
Signed-off-by:
Vaibhav Hiremath <hvaibhav@ti.com> Signed-off-by:
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Laurent Pinchart authored
The crop rectangle takes the preview engine internal cropping requirements into account. The smallest allowable margins are 14 columns and 8 rows when reading from memory, and 18 columns and 8 rows when processing data on the fly from the CCDC. Signed-off-by:
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Laurent Pinchart authored
The macros that define the minimum/maximum input and output sizes are defined in seperate files and have no consistent naming. In preparation for preview engine cropping support, move them all to isppreview.c and rename them to PREV_{MIN|MAX}_{IN|OUT}_{WIDTH|HEIGHT}*. Remove unused and/or unneeded local variables that store the maximum output width. Signed-off-by: -
Laurent Pinchart authored
The horizontal averager isn't used and will get in the way when implementing cropping support on the input pad. Remove it, it can be added back later if needed. Signed-off-by:
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Laurent Pinchart authored
Set the media_device::hw_revision field to the ISP revision number. Signed-off-by:
Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by:
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Guennadi Liakhovetski authored
Trivial arithmetics clean up. Signed-off-by:
Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by:
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Laurent Pinchart authored
Make sure all modules init functions clean up after themselves in case of error. Signed-off-by:
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Laurent Pinchart authored
Mutexes must be destroyed with mutex_destroy(). Add missing calls in the modules cleanup handlers. Signed-off-by:
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