- 10 Apr, 2015 19 commits
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Philipp Zabel authored
This patch adds tracepoints to the coda driver that can be used together with the v4l2:v4l2_qbuf and v4l2:v4l2_dqbuf tracepoints to to follow video frames through the mem2mem device. For encoding with the BIT processor: coda:coda_enc_pic_run coda:coda_enc_pic_done For decoding with the BIT processor: coda:coda_bit_queue coda:coda_dec_pic_run coda:coda_dec_pic_done coda:coda_dec_rot_done Additionally, two low level tracepoints register whenever the BIT processor is started and returns: coda:coda_bit_run coda:coda_bit_done Signed-off-by:Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by:
Kamil Debski <k.debski@samsung.com> Signed-off-by:
Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Philipp Zabel authored
Issuing a cache flush for the whole bitstream buffer is not optimal in the first place when only a part of it was written. But given that the buffer is mapped in writecombine mode, it is not needed at all. Signed-off-by:
Ian Molton <imolton@ad-holdings.co.uk> Signed-off-by:
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Philipp Zabel authored
When queueing a buffer into the bitstream fails, it has to be requeued in the videobuf2 queue before streaming starts, but while streaming it should be returned to userspace with an error. Signed-off-by:
Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by:
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Philipp Zabel authored
This allows to stop and restart the output queue to start a new sequence while keeping the capture queue running. Before, sequence end would only be issued if both output and capture queue were stopped and the sequence start issued when reenabling the output queue would fail. Signed-off-by:
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Philipp Zabel authored
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Philipp Zabel authored
coda_alloc_aux_buf already prints an error, no need to print duplicate error messages all over the place. Signed-off-by:
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Philipp Zabel authored
The parameter buffer is a per-context buffer, so we can allocate and free it together with the other context buffers during REQBUFS. Since this was the last context buffer allocated in coda-common.c, we can now move coda_alloc_context_buf into coda-bit.c. Signed-off-by:
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Philipp Zabel authored
Allocating the bitstream buffer only when the format is set allows to guarantee that at least two frames fit into the bitstream buffer. For small frame sizes a smaller bitstream buffer can be allocated. Since the bitstream buffer size now depends on the format, replace CODA_MAX_FRAME_SIZE with ctx->bitstream.size where appropriate and remove the now unused constant. Since REQBUFS can be called multiple times, but the format can't be changed unless REQBUFS 0 was called before, we can just keep the allocated context and bitstream buffers if REQBUFS is called multiple times with a non-zero buffer count. [fixed a resource leak preventing repeatedly decoding] Signed-off-by:
Peter Seiderer <ps.report@gmx.net> Signed-off-by:
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Philipp Zabel authored
Allocate the per-context buffers from REQBUFS instead in start_encoding or start_decoding. This allows to stop and start streaming independently of buffer (re)allocation Signed-off-by:
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Philipp Zabel authored
There is no need to take the detour through a "%s" format string to create a copy of a string. Signed-off-by:
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Philipp Zabel authored
kfifo_len is unsigned int, return it as such. Signed-off-by:
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Peter Seiderer authored
In coda_free_aux_buf() call debugfs_remove only if buffer entry is valid (and therfore dentry is valid), double protect by invalidating dentry value. Fixes erroneous prematurely dealloc of debugfs caused by incorrect reference count incrementing. Signed-off-by:
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Peter Seiderer authored
kasprintf might fail if free memory is low. Signed-off-by:
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Philipp Zabel authored
We divide the bitrate by 1000 before writing it to the register. Communicate to userspace that the bitrate granularity is kbps. Signed-off-by:
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Philipp Zabel authored
The first time b is used, it is assigned to the first element of the rdy_queue list. There is no need to set it to NULL before. Signed-off-by:
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Kamil Debski authored
The s5p-mfc driver interprets a buffer with bytesused equal to 0 as a special case indicating end-of-stream. After vb2: fix bytesused == 0 handling (8a75ffb8) patch videobuf2 modified the value of bytesused if it was 0. The allow_zero_bytesused flag was added to videobuf2 to keep backward compatibility. Signed-off-by:
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Kamil Debski authored
The coda driver interprets a buffer with bytesused equal to 0 as a special case indicating end-of-stream. After vb2: fix bytesused == 0 handling (8a75ffb8) patch videobuf2 modified the value of bytesused if it was 0. The allow_zero_bytesused flag was added to videobuf2 to keep backward compatibility. Signed-off-by:
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Kamil Debski authored
The vb2: fix bytesused == 0 handling (8a75ffb8) patch changed the behavior of __fill_vb2_buffer function, so that if bytesused is 0 it is set to the size of the buffer. However, bytesused set to 0 is used by older codec drivers as as indication used to mark the end of stream. To keep backward compatibility, this patch adds a flag passed to the vb2_queue_init function - allow_zero_bytesused. If the flag is set upon initialization of the queue, the videobuf2 keeps the value of bytesused intact in the OUTPUT queue and passes it to the driver. Reported-by:
Nicolas Dufresne <nicolas.dufresne@collabora.com> Signed-off-by:
Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by:
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Kamil Debski authored
This patch splits the io_flags member of vb2_queue into a bit field. Instead of an enum with flags separate bit fields were introduced. Signed-off-by:
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- 09 Apr, 2015 1 commit
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Mauro Carvalho Chehab authored
As requested by Sakari: "The driver changes are still being reviewed. It's been proposed that the max-microamp property be renamed." So, as the DT bindings are not agreed upstream yet, let's revert it. Requested-by:
Sakari Ailus <sakari.ailus@iki.fi> This reverts commit b6100f10.
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- 08 Apr, 2015 20 commits
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Pavel Machek authored
Nokia N900 is switching to device tree, make sure we can use flash there, too. Signed-off-by:
Pavel Machek <pavel@ucw.cz> Signed-off-by:
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Christian Dale authored
Add Leadtek WinFast DTV2000DS Plus device based on Realtek RTL2832U. I have not tested the remote, but it is the Y04G0051 model. Signed-off-by:
Christian Dale <kernel@techmunk.com> Signed-off-by:
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Mauro Carvalho Chehab authored
Changeset 9b174527 added this new macro, ensuring that it is true only if the function is actually reachable. However, newer drivers were added since when it was written. So, change those drivers to also use it. Signed-off-by:
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Arnd Bergmann authored
In the media drivers, the v4l2 core knows about all submodules and calls into them from a common function. However this cannot work if the modules that get called are loadable and the core is built-in. In that case we get drivers/built-in.o: In function `set_type': drivers/media/v4l2-core/tuner-core.c:301: undefined reference to `tea5767_attach' drivers/media/v4l2-core/tuner-core.c:307: undefined reference to `tea5761_attach' drivers/media/v4l2-core/tuner-core.c:349: undefined reference to `tda9887_attach' drivers/media/v4l2-core/tuner-core.c:405: undefined reference to `xc4000_attach' This was working previously, until the IS_ENABLED() macro was used to replace the construct like #if defined(CONFIG_DVB_CX24110) || (defined(CONFIG_DVB_CX24110_MODULE) && defined(MODULE)) with the difference that the new code no longer checks whether it is being built as a loadable module itself. To fix this, this new patch adds an 'IS_REACHABLE' macro, which evaluates true in exactly the condition that was used previously. The downside of this is that this trades an obvious link error for a more subtle runtime failure, but it is clear that the change that introduced the link error was unintentional and it seems better to revert it for now. Also, a similar change was originally created by Trent Piepho and then reverted by teh change to the IS_ENABLED macro. Ideally Kconfig would be used to avoid the case of a broken dependency, or the code restructured in a way to turn around the dependency, but either way would require much larger changes here. Fixes: 7b34be71 ("[media] use IS_ENABLED() macro") See-also: c5dec9fb ("V4L/DVB (4751): Fix DBV_FE_CUSTOMISE for card drivers compiled into kernel") Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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Yannick Guerrini authored
Change 'firmare' to 'firmware' Signed-off-by:
Yannick Guerrini <yguerrini@tomshardware.fr> Acked-by:
Antti Palosaari <crope@iki.fi> Signed-off-by:
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Devin Heitmueller authored
This patch addresses a regression introduced in the following patch: commit 5264a522 Author: Shuah Khan <shuahkh@osg.samsung.com> [media] media: tuner xc5000 - release firmwware from xc5000_release() The "priv" struct is actually reference counted, so the xc5000_release() function gets called multiple times for hybrid devices. Because release_firmware() was always being called, it would work fine as expected on the first call but then the second call would corrupt aribtrary memory. Set the pointer to NULL after releasing so that we don't call release_firmware() twice. This problem was detected in the HVR-950q where plugging/unplugging the device multiple times would intermittently show panics in completely unrelated areas of the kernel. Signed-off-by:
Devin Heitmueller <dheitmueller@kernellabs.com> Cc: Shuah Khan <shuahkh@osg.samsung.com> Signed-off-by:
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Mauro Carvalho Chehab authored
Please revert this patch: vm_area_cachep is not exported, so you cannot use this in a module. This reverts commit 5ed1c328. Reported-by:
Hans Verkuil <hverkuil@cisco.com> Signed-off-by:
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Dimitris Lampridis authored
ID 1b80:d3a4 Afatech Simply added the PID (0xd3a4) of this DVB-T USB device to the list of rtl2832u-supported devices. VID (0x1b80) is same as KWORLD2. Tested and verified to work in amd64 with kernels 3.13.0 and 3.16.0. Signed-off-by:
Dimitris Lampridis <dlampridis@logikonlabs.com> Reviewed-by:
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Luis de Bethencourt authored
Cleaning up the following compiler warning: rtl2832.c:703:12: warning: 'tmp' may be used uninitialized in this function Even though it could never happen since if rtl2832_rd_demod_reg () doesn't set tmp, this line would never run because we go to err. It is still nice to avoid compiler warnings. [mchehab@osg.samsung.com: fix a merge conflict with another patch meant to fix the same bug, but doing it at the wrong way] Signed-off-by:
Luis de Bethencourt <luis.bg@samsung.com> Reviewed-by:
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Sifan Naeem authored
img_ir_remove() passes a pointer to the ISR function as the 2nd parameter to irq_free() instead of a pointer to the device data structure. This issue causes unloading img-ir module to fail with the below warning after building and loading img-ir as a module. WARNING: CPU: 2 PID: 155 at ../kernel/irq/manage.c:1278 __free_irq+0xb4/0x214() Trying to free already-free IRQ 58 Modules linked in: img_ir(-) CPU: 2 PID: 155 Comm: rmmod Not tainted 3.14.0 #55 ... Call Trace: ... [<8048d420>] __free_irq+0xb4/0x214 [<8048d6b4>] free_irq+0xac/0xf4 [<c009b130>] img_ir_remove+0x54/0xd4 [img_ir] [<8073ded0>] platform_drv_remove+0x30/0x54 ... Fixes: 160a8f8a ("[media] rc: img-ir: add base driver") Signed-off-by:
Sifan Naeem <sifan.naeem@imgtec.com> Cc: <stable@vger.kernel.org> # 3.15+ Acked-by:
James Hogan <james.hogan@imgtec.com> Signed-off-by:
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David Howells authored
Use enum to represent table offsets rather than hard-coding numbers to avoid problems with the numbers becoming out of sync with the table. Signed-off-by:
David Howells <dhowells@redhat.com> Signed-off-by:
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Luis de Bethencourt authored
Remove unused macros RC_REPEAT_DELAY and RC_REPEAT_DELAY_V1_20 Signed-off-by:
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Christian Engelmayer authored
In case of an error function si2165_upload_firmware() releases the already requested firmware in the exit path. However, there is one deviation where the function directly returns. Use the correct cleanup so that the firmware memory gets freed correctly. Detected by Coverity CID 1269120. Signed-off-by:
Christian Engelmayer <cengelma@gmx.at> Signed-off-by:
Matthias Schwarzott <zzam@gentoo.org> Reviewed-by:
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Kiran Padwal authored
This patch add a missing a check on the return value of devm_kzalloc, which would cause a NULL pointer dereference in a OOM situation. Signed-off-by:
Kiran Padwal <kiran.padwal@smartplayin.com> Acked-by:
Andrzej Hajda <a.hajda@samsung.com> Signed-off-by:
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KyongHo Cho authored
The slab for vm_area_struct which is vm_area_cachep is already prepared for the general use. Instead of kmalloc() for the vma copy for userptr, allocation from vm_area_cachep is more beneficial. CC: Hans Verkuil <hans.verkuil@cisco.com> CC: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by:
Cho KyongHo <pullip.cho@samsung.com> Signed-off-by:
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Sifan Naeem authored
Gets a handle to the system clock, already described in the binding document, and calls the appropriate common clock framework functions to mark it prepared/enabled, the common clock framework initially enables the clock and doesn't disable it at least until the device/driver is removed. It's important the systen clock is enabled before register interface is accessed by the driver. The system clock to IR is needed for the driver to communicate with the IR hardware via MMIO accesses on the system bus, so it must not be disabled during use or the driver will malfunction. Signed-off-by:
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Markus Elfring authored
The functions "dvb_unregister_device" and "kfree" could still be called by the dvb_ca_en50221_init() function in the case that a previous resource allocation failed. * Corresponding details could be improved by adjustments for jump targets. * Let us delete also an unnecessary check for the variable "ca" there. Signed-off-by:
Markus Elfring <elfring@users.sourceforge.net> Signed-off-by:
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Markus Elfring authored
The dvb_unregister_device() function tests whether its argument is NULL and then returns immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by:
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Luis de Bethencourt authored
Fixing a few checkpatch errors of type: space required after that ',' Signed-off-by:
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Markus Elfring authored
The media_entity_put() function tests whether its argument is NULL and then returns immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by:
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