- 02 Mar, 2015 26 commits
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Hans Verkuil authored
Switch this driver over to the V4L2 core locking mechanism in preparation for switching to unlocked_ioctl. Suggested by Laurent Pinchart. This patch introduces a new mutex at the struct uvc_video level and drops the old mutex at the queue level. The new lock is now used for all ioctl locking and in the release file operation (the driver always has to take care of locking in file operations, the core only serializes ioctls). Note that the mmap and get_unmapped_area file operations no longer take a lock. Commit f035eb4e fixed a AB-BA deadlock by moving all the locking down into vb2, so the mmap and get_unmapped_area file operations should no longer do any locking before calling into vb2. Signed-off-by:
Hans Verkuil <hans.verkuil@cisco.com> Acked-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by:
Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Hans Verkuil authored
This driver does its own locking, so there is no need to use ioctl instead of unlocked_ioctl. Signed-off-by:
Pali Rohár <pali.rohar@gmail.com> Signed-off-by:
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Hans Verkuil authored
As far as I can tell pvrusb2 does its own locking, so there is no need to use .ioctl. Signed-off-by:
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Pablo Anton authored
It is confusing which parts of the driver are adv7604 specific, adv7611 specific or common for both. This patch renames any adv7604 prefixes (both for functions and defines) to adv76xx whenever they are common. Signed-off-by:
Pablo Anton <pablo.anton@vodalys-labs.com> Signed-off-by:
Jean-Michel Hautbois <jean-michel.hautbois@vodalys.com> [hans.verkuil@cisco.com: rebased and renamed ADV76xx_fsc to ADV76XX_FSC] [hans.verkuil@cisco.com: kept the existing adv7604 driver name] Signed-off-by:
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Nicholas Mc Guire authored
Add handling for timeout case. Signed-off-by:
Nicholas Mc Guire <hofrat@osadl.org> Signed-off-by:
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Nicholas Mc Guire authored
wait_for_completion_timeout() returns unsigned long not int. This assigns the return value to an appropriately typed variable (also helps keep static code checkers happy). Signed-off-by:
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jean-michel.hautbois@vodalys.com authored
The bits are the same, but register is 0xf4 on ADV7611 instead of 0xfc. When reading back the value in log_status, differentiate both. Signed-off-by:
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Nicholas Mc Guire authored
return type of wait_for_completion_timeout is unsigned long not int. A appropriately named variable of type unsigned long is added and the assignments fixed up. Signed-off-by:
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Luis de Bethencourt authored
Integer return of bcm2048_parse_rds_rt () is never used, changing the return type to void. Signed-off-by:
Luis de Bethencourt <luis.bg@samsung.com> Acked-by:
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jean-michel.hautbois@vodalys.com authored
The CP_NON_STD_VIDEO bit indicates an input not aligned with DV timings. If there is no input, and chip is in free run mode, consider we are locked. Signed-off-by:
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Markus Elfring authored
The video_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:
Markus Elfring <elfring@users.sourceforge.net> Signed-off-by:
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Markus Elfring authored
The vfree() function performs also input parameter validation. 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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Prashant Laddha authored
FM (frequency modulated) signal for SDR is generated by varying the phase, where phase variation is proportional to input signal. It is seen that, the larger phase increments leads to discontinuities in the signal recovered after demodulation. Reducing the extent of phase variation with respect to input signal, equivalent to reducing the modulation index. Tested using FM receiver flow graph in gnuradio-companion. Cc: Antti Palosaari <crope@iki.fi> Signed-off-by:
Prashant Laddha <prladdha@cisco.com> Signed-off-by:
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Prashant Laddha authored
The common implementation for sin/cos in include/linux/fixp-arith.h has been improved recently to provide higher precision. Replacing native implementation of sin/cos in vivid sdr with common implementation. This serves two purposes: 1. Improved accuracy: the native implementation based on the Taylor series is more prone to rounding errors. 2. Reuse of common function: this is better compared to maintaining native versions for each driver. Suggested by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Cc: Antti Palosaari <crope@iki.fi> Signed-off-by:
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Mauro Carvalho Chehab authored
The cos table used at fixp-arith.h has only 8 bits of precision. That causes problems if it is reused on other drivers. As some media drivers require a higher precision sin/cos implementation, replace the current implementation by one that will provide 32 bits precision. The values generated by the new implementation matches the 32 bit precision of glibc's sin for an angle measured in integer degrees. It also provides support for fractional angles via linear interpolation. On experimental calculus, when used a table with a 0.001 degree angle, the maximum error for sin is 0.000038, which is likely good enough for practical purposes. There are some logic there that seems to be specific to the usage inside ff-memless.c. Move those logic to there, as they're not needed elsewhere. Cc: Hans de Goede <hdegoede@redhat.com> Signed-off-by:
Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by:
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Christian Engelmayer authored
In case allocation vb2_dma_sg_init_ctx() fails during cx8802_probe(), the already allocated cx8802 device structure memory is not freed in the used exit path. Thus adapt the cleanup handling accordingly. Detected by Coverity CID 1260065. Signed-off-by:
Christian Engelmayer <cengelma@gmx.at> Signed-off-by:
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Alexey Khoroshilov authored
Memory allocated for sh_vou_file is not deallocated on error paths in sh_vou_open(). Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by:
Alexey Khoroshilov <khoroshilov@ispras.ru> Signed-off-by:
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Hans Verkuil authored
<tgroup> doesn't understand the 'border' attribute. Signed-off-by:
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Kiran Padwal authored
This patch uses managed resource APIs to allocate memory in order to simplify the driver unload or failure cases Signed-off-by:
Kiran Padwal <kiran.padwal@smartplayin.com> Signed-off-by:
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Geert Uytterhoeven authored
If NO_DMA=y: warning: (VIDEO_OMAP2_VOUT && VIDEO_VIU && VIDEO_TIMBERDALE) selects VIDEOBUF_DMA_CONTIG which has unmet direct dependencies (MEDIA_SUPPORT && HAS_DMA) drivers/built-in.o: In function `__videobuf_dc_free': videobuf-dma-contig.c:(.text+0x6f4d32): undefined reference to `dma_free_coherent' drivers/built-in.o: In function `__videobuf_dc_alloc': videobuf-dma-contig.c:(.text+0x6f4fe6): undefined reference to `dma_alloc_coherent' drivers/built-in.o: In function `__videobuf_mmap_mapper': videobuf-dma-contig.c:(.text+0x6f518e): undefined reference to `dma_free_coherent' Commit 24482922 ("[media] timberdale: do not select TIMB_DMA") dropped the dependency of VIDEO_TIMBERDALE on DMADEVICES, and thus the implicit dependency on HAS_DMA. VIDEO_TIMBERDALE selects VIDEOBUF_DMA_CONTIG, which bypasses its dependency on HAS_DMA. Make VIDEO_TIMBERDALE depend on HAS_DMA to fix this. Signed-off-by:Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by:
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Geert Uytterhoeven authored
If NO_DMA=y: warning: (VIDEO_AM437X_VPFE && VIDEO_DM365_VPFE && VIDEO_DT3155 && VIDEO_OMAP4) selects VIDEOBUF2_DMA_CONTIG which has unmet direct dependencies (MEDIA_SUPPORT && HAS_DMA) drivers/media/v4l2-core/videobuf2-dma-contig.c: In function ‘vb2_dc_mmap’: drivers/media/v4l2-core/videobuf2-dma-contig.c:207: error: implicit declaration of function ‘dma_mmap_coherent’ drivers/media/v4l2-core/videobuf2-dma-contig.c: In function ‘vb2_dc_get_base_sgt’: drivers/media/v4l2-core/videobuf2-dma-contig.c:390: error: implicit declaration of function ‘dma_get_sgtable’ VIDEO_AM437X_VPFE selects VIDEOBUF2_DMA_CONTIG, which bypasses its dependency on HAS_DMA. Make VIDEO_AM437X_VPFE depend on HAS_DMA to fix this. Signed-off-by:Lad, Prabhakar <prabhakar.csengg@gmail.com> Signed-off-by:
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Nicholas Mc Guire authored
The if and the else code are identical - so the condition has no effect on the effective code. This patch removes the condition and the duplicated code. Signed-off-by:
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Mauro Carvalho Chehab authored
If the media controller (MC) is not enabled, it will compile fine, but will fail at the linkedition: ERROR: "media_device_unregister" [drivers/media/usb/siano/smsusb.ko] undefined! Reported-by:
kbuild test robot <fengguang.wu@intel.com> Signed-off-by:
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Mauro Carvalho Chehab authored
This is really a simple function, but using it avoids to have if's inside the drivers. Also, the kABI becomes a little more clearer. This shouldn't generate any overhead, and the type check will happen when compiling with MC DVB enabled. So, let's do it. Signed-off-by: -
Mauro Carvalho Chehab authored
drivers/media/usb/dvb-usb-v2/dvb_usb_core.c: In function ‘dvb_usbv2_adapter_dvb_exit’: drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:531:25: warning: unused variable ‘d’ [-Wunused-variable] struct dvb_usb_device *d = adap_to_d(adap); ^ drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:403:13: warning: ‘dvb_usbv2_media_device_register’ defined but not used [-Wunused-function] static void dvb_usbv2_media_device_register(struct dvb_usb_adapter *adap) drivers/media/usb/dvb-usb/dvb-usb-dvb.c:97:13: warning: ‘dvb_usb_media_device_register’ defined but not used [-Wunused-function] static void dvb_usb_media_device_register(struct dvb_usb_adapter *adap) ^ Signed-off-by: -
Mauro Carvalho Chehab authored
Instead of using media_dev argument for dvb_create_media_graph(), use the adapter. That allows to create a stub for this function, if compiled without DVB support, avoiding to add extra if's at the drivers. Signed-off-by:
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- 26 Feb, 2015 14 commits
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Mauro Carvalho Chehab authored
Instead of assuming just one adapter, change the code to store one media controller per adapter. This works fine for dvb-usb, as, on all drivers here, it is not possible to write a media graph that would mix resources between the two different adapters. Signed-off-by: -
Rafael Lourenço de Lima Chehab authored
Create a struct media_device and add it to the dvb adapter. Please notice that the tuner is not mapped yet by the dvb core. [mchehab@osg.samsung.com: use config option MEDIA_CONTROLLER_DVB] Signed-off-by:
Rafael Lourenço de Lima Chehab <chehabrafael@gmail.com> Signed-off-by:
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Mauro Carvalho Chehab authored
Instead of assuming just one adapter, change the code to store one media controller per adapter. This works fine for dvb-usb, as, on all drivers here, it is not possible to write a media graph that would mix resources between the two different adapters. Acked-by:
Antti Palosaari <crope@iki.fi> Signed-off-by:
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Rafael Lourenço de Lima Chehab authored
Create a struct media_device and add it to the dvb adapter. Please notice that the tuner is not mapped yet by the dvb core. [mchehab@osg.samsung.com: use config option MEDIA_CONTROLLER_DVB due to a rebase] Signed-off-by:
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Mauro Carvalho Chehab authored
We need to initialize the media controller earlier, as the core will call the smsdvb hotplug during register time. Ok, this is an async operation, so, when the module is not loaded, the media controller works. However, if the module is already loaded, nothing will be registered at the media controller, as it will load too late. Signed-off-by: -
Mauro Carvalho Chehab authored
Right now, this is a debug message, misplaced. Promote it to an info message, as it helps to discover if something bad happened during device init. Signed-off-by: -
Mauro Carvalho Chehab authored
All siano modules have a sms_dbg parameter. Now that we're using the standard pr_debug() macro, we can get rid of it. Signed-off-by: -
Mauro Carvalho Chehab authored
On most cases, sms_info() should actually be pr_debug(), but, on other places, it should be pr_info(). Signed-off-by: -
Mauro Carvalho Chehab authored
There's no reason to use a macro here. Just replace everything, and let those debug messages to be activated via dynamic printk. Signed-off-by: -
Mauro Carvalho Chehab authored
Despite its name, those functions are acutally debug prints for the IR part of the driver. So, properly map them using pr_debug() Signed-off-by: -
Mauro Carvalho Chehab authored
Originally, sms_err() would be also displaying the line where the error occurs, but the messages are clear enough. Also, the function is always printed. So, no need for it. Signed-off-by: -
Mauro Carvalho Chehab authored
There's no reason for a sms' own sms_warn macro. Just replace it by the standard pr_warn(). Signed-off-by: -
Mauro Carvalho Chehab authored
Instead of defining its own set of printk functions, let's use the common Kernel debug logic provided by pr_foo functions. As a first step, let's just define the existing macros as the Kernel ones. Signed-off-by: -
Mauro Carvalho Chehab authored
Adding support for the media controller for a pure DVB device is simple: just create a struct media_device and add it to the dvb adapter. After creating all DVB devices, we need to call the DVB core, for it to create the media graph. More work is needed for pure DVB tuners, but this is hidden at the Siano driver, just like several others non-hybrid devices. So, this is streight forward. Signed-off-by:
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