- 01 Mar, 2016 5 commits
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Mauro Carvalho Chehab authored
While there's no risk of divison by zero, the logic there is akward, as it does the calculus for the numerator and denominator before checking if this will be used. Change the order to check first if the denominator is zero, and only calculating the numerator/denominator if not. This should also avoid those smatch errors: drivers/media/dvb-frontends/drx39xyj/drxj.c:9605 ctrl_get_qam_sig_quality() debug: sval_binop_unsigned: divide by zero drivers/media/dvb-frontends/drx39xyj/drxj.c:9605 ctrl_get_qam_sig_quality() debug: sval_binop_unsigned: divide by zero drivers/media/dvb-frontends/drx39xyj/drxj.c:9605 ctrl_get_qam_sig_quality() debug: sval_binop_unsigned: divide by zero drivers/media/dvb-frontends/drx39xyj/drxj.c:9605 ctrl_get_qam_sig_quality() debug: sval_binop_unsigned: divide by zero drivers/media/dvb-frontends/drx39xyj/drxj.c:9605 ctrl_get_qam_sig_quality() debug: sval_binop_unsigned: divide by zero Signed-off-by:Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Mauro Carvalho Chehab authored
As warned by smatch: drivers/media/usb/airspy/airspy.c:541 airspy_start_streaming() warn: test_bit() takes a bit number drivers/media/usb/airspy/airspy.c:569 airspy_start_streaming() warn: test_bit() takes a bit number drivers/media/usb/airspy/airspy.c:605 airspy_stop_streaming() warn: test_bit() takes a bit number set_bit/clear_bit argument is the bit number, and not 1 << bit. Thankfully, one of the bits was not used (URB_BUF), with would otherwise cause a driver misfunctioning. Clean this mess by always using set_bit/clear_bit/test_bit and removing the unused bit. Signed-off-by: -
Hans de Goede authored
Remove the unused ovfx2_vga_mode/ovfx2_cif_mode arrays from the ov519 driver. Signed-off-by:
Hans de Goede <hdegoede@redhat.com> Signed-off-by:
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Wesley Post authored
Fix the ov519 driver not working (unable to talk to the sensor) when plugged into a xhci host. The root cause here is that uhci/ohci/ehci hosts typically will send any pending async requests every milli-second and then go to sleep for the rest if the milli-second, where as xhci hosts send them immediately, causing things to go too fast for the ov519 bridge. This commit adds a few delays fixing this. Signed-off-by:
Wesley Post <pa4wdh@xs4all.nl> [hdegoede@redhat.com: Also add delays to w996Xcf.c, as that needs them too] Signed-off-by:
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Hans de Goede authored
On my bttv card "Hauppauge WinTV [card=10]" capturing in YV12 fmt at max size results in a solid green rectangle being captured (all colors 0 in YUV). This turns out to be caused by max-width (924) not being a multiple of 16. We've likely never hit this problem before since normally xawtv / tvtime, etc. will prefer packed pixel formats. But when using a video card which is using xf86-video-modesetting + glamor, only planar XVideo fmts are available, and xawtv will chose a matching capture format to avoid needing to do conversion, triggering the solid green window problem. Cc: stable@vger.kernel.org Signed-off-by:
Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by:
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- 27 Feb, 2016 22 commits
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Shuah Khan authored
Change au0828 to check if tuner is free or not before changing tuner configuration. vidioc_g_tuner(), and au0828_v4l2_close() now call v4l-core interface v4l_enable_media_source() before changing tuner configuration. Remove au0828_enable_analog_tuner() as it is no longer needed because v4l2-core implements common interfaces to check for media source availability. In addition, queue_setup() no longer needs the tuner availability check since v4l2-core does it. Signed-off-by:
Shuah Khan <shuahkh@osg.samsung.com> Signed-off-by:
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Shuah Khan authored
Change dvb frontend to check if tuner is free when device opened in RW mode. Call to enable_source handler either returns with an active pipeline to tuner or error if tuner is busy. Tuner is released when frontend is released calling the disable_source handler. Signed-off-by:
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Shuah Khan authored
Add enable_source and disable_source handlers. The enable source handler is called from v4l2-core, dvb-core, and ALSA drivers to check if the shared media source is free. The disable source handler is called to release the shared media source. [mchehab@osg.samsung.com: fix merge conflicts] Signed-off-by:
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Shuah Khan authored
Register entity_notify async hook to create links between existing bridge driver entities and a newly added non-bridge driver entities. For example, this handler creates link between V4L decoder entity and ALSA mixer entity. [mchehab@osg.samsung.com: fix merge conflicts and make au0828_media_graph_notify static to shut up a warning] Signed-off-by:
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Shuah Khan authored
Change au0828_create_media_graph() to find and disable tuner and demod link. This helps avoid an additional disable step when tuner is requested by video or audio. Signed-off-by:
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Shuah Khan authored
Create tuner to demod pad link in disabled state to avoid disable step when tuner resource is requested by dvb. [mchehab@osg.samsung.com: fix a merge conflict] Signed-off-by:
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Shuah Khan authored
Media device initialization and registration steps are split. There is a window between media device init and media device register during usb probe. au0828 bridge driver and snd-usb-audio could try to initialize the media device, if they simply checked, whether the device has been registered. They also need to check whether the device has been initialized. Change the au0828-core to check if media device is already initialized during initialization step and check if media device is already registered during the registration step. [mchehab@osg.samsung.com: fix a merge conflict] Signed-off-by:
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Shuah Khan authored
Change au0828 to use Managed Media Controller API to share media device and coordinate creating/deleting the shared media device with the snd-usb-audio driver. The shared media device is created as device resource of the parent usb device of the two drivers. Populate media device model with USB Device product name instead of au0828 device board name. This change is necessary because, if the media device is registered by the snd-usb-audio driver first, and it doesn't know the au0828 board name. [mchehab@osg.samsung.com: Fix merge conflicts] Signed-off-by:
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Shuah Khan authored
Change s_input, s_fmt, s_tuner, s_frequency, querystd, s_hw_freq_seek, and vb2_core_streamon interfaces that alter the tuner configuration to check if it is free, by calling v4l_enable_media_source(). If source isn't free, return -EBUSY. v4l_disable_media_source() is called from v4l2_fh_exit() to release tuner (source). vb2_core_streamon() uses v4l_vb2q_enable_media_source(). Signed-off-by:
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Shuah Khan authored
Change au0828-core to use au8522_media_pads enum defines instead of hard-coding the pad values. [mchehab@osg.samsung.com: patch rebased, as the code was moved to au0828-video.c. Also added AU8522_PAD_INPUT to the list of pad number replacements] Signed-off-by:
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Shuah Khan authored
Add new pad for ALSA Audio Out to au8522_media_pads. Signed-off-by:
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Shuah Khan authored
Move the au8522_media_pads enum to au8522.h from au8522_priv.h to export them. This will allow au0828-core to use these defines instead of hard-coding them them. Signed-off-by:
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Shuah Khan authored
Add a new interfaces to be used by v4l-core to invoke enable source and disable_source handlers in the media_device. The enable_source helper function invokes the enable_source handler to find media source entity connected to the entity and check is it is available or busy. If source is available, link is activated and pipeline is started. The disable_source helper function invokes the disable_source handler to deactivate and stop the pipeline. Signed-off-by:
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Shuah Khan authored
Add non-locking __media_entity_pipeline_start/stop() interfaces to be called from code paths that hold the graph_mutex. Signed-off-by:
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Shuah Khan authored
Export __media_entity_setup_link() to be used from code paths that hold the graph_mutex. Signed-off-by:
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Shuah Khan authored
Add new fields to struct media_device to add enable_source, and disable_source handlers, and source_priv to stash driver private data that is used to run these handlers. The enable_source handler finds source entity for the passed in entity and checks if it is available. When link is found, it activates it. Disable source handler deactivates the link. Bridge driver is expected to implement and set these handlers. Signed-off-by:
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Shuah Khan authored
Add new interfaces to register and unregister entity_notify hook to media device. These interfaces allow drivers to add hooks to take appropriate actions when new entities get added to a shared media device. For example, au0828 bridge driver registers an entity_notify hook to create links as needed between media graph nodes. [mchehab@osg.samsung.com: simple comments should be /* and not /**] Signed-off-by:
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Shuah Khan authored
Add ALSA Media Controller capture, playback, and mixer function entity defines. [mchehab@osg.samsung.com: fix a trivial merge conflict and start MEDIA_ENT_AUDIO_F from 3000] Signed-off-by:
Takashi Iwai <tiwai@suse.de> Signed-off-by:
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Shuah Khan authored
Add Audio Function Entities Signed-off-by:
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Shuah Khan authored
Declare the interface types to be used on alsa for the new G_TOPOLOGY ioctl. Signed-off-by:
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Shuah Khan authored
Add ALSA Media Controller Intf types Signed-off-by:
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Hans Verkuil authored
smatch complains about non-ascii characters. It turns out that a wide-dash character was used instead of the more common '-' character. Replace those dashes with -. Signed-off-by:
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- 23 Feb, 2016 13 commits
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Mauro Carvalho Chehab authored
Cleanup this bogus smatch warning: drivers/media/pci/ttpci/budget.c:635 frontend_init() warn: missing break? reassigning 'budget->dvb_frontend' And document the fall through logic at the switch(). Signed-off-by: -
Mauro Carvalho Chehab authored
Remove this bogus smatch warning: drivers/media/pci/ttpci/av7110.c:2211 frontend_init() warn: missing break? reassigning 'av7110->fe' Signed-off-by: -
Mauro Carvalho Chehab authored
Fixes this smatch warning: drivers/media/dvb-frontends/drx39xyj/drxj.c:4151 drxj_dap_scu_atomic_read_write_block() error: buffer overflow 'set_param_parameters' 15 <= 17 Signed-off-by: -
Mauro Carvalho Chehab authored
Both dib9000_read16_attr and dib9000_write16_attr can return an error code. However, they currently return an u16. This produces the following warnings on smatch: drivers/media/dvb-frontends/dib9000.c:262 dib9000_read16_attr() warn: signedness bug returning '(-121)' drivers/media/dvb-frontends/dib9000.c:321 dib9000_write16_attr() warn: signedness bug returning '(-22)' drivers/media/dvb-frontends/dib9000.c:353 dib9000_write16_attr() warn: signedness bug returning '(-121)' Reviewed-by:
Michael Ira Krufky <mkrufky@linuxtv.org> Signed-off-by:
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Mauro Carvalho Chehab authored
ivtv_flush_queues() calls ivtv_queue_move() with steal == NULL. However, part of the code assumes that steal could be not null, as pointed by smatch: drivers/media/pci/ivtv/ivtv-queue.c:145 ivtv_queue_move() error: we previously assumed 'steal' could be null (see line 138) This has the potential of causing an OOPS when the queue is flushed. Signed-off-by: -
Mauro Carvalho Chehab authored
Fix the following smatch warnings: drivers/media/dvb-frontends/stv0900_core.c:1183 stv0900_get_optim_carr_loop() error: buffer overflow 'cllas2' 11 <= 13 drivers/media/dvb-frontends/stv0900_core.c:1185 stv0900_get_optim_carr_loop() error: buffer overflow 'cllas2' 11 <= 13 drivers/media/dvb-frontends/stv0900_core.c:1187 stv0900_get_optim_carr_loop() error: buffer overflow 'cllas2' 11 <= 13 drivers/media/dvb-frontends/stv0900_core.c:1189 stv0900_get_optim_carr_loop() error: buffer overflow 'cllas2' 11 <= 13 drivers/media/dvb-frontends/stv0900_core.c:1191 stv0900_get_optim_carr_loop() error: buffer overflow 'cllas2' 11 <= 13 Reviewed-by:
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Mauro Carvalho Chehab authored
That fixes the following smatch warning: drivers/media/usb/pvrusb2/pvrusb2-hdw.c:4909 pvr2_hdw_state_log_state() error: buffer overflow 'buf' 256 <= 4294967294 Signed-off-by: -
Mauro Carvalho Chehab authored
The buffer_complete() routine assumes that sp is not NULL, otherwise it will fail completely. Btw, this is also assumed at pvr2_buffer_queue(), with is the routine that setups the URB handling. So, remove the bogus for the callback at buffer_complete. This fix this smatch warning: drivers/media/usb/pvrusb2/pvrusb2-io.c:476 buffer_complete() warn: variable dereferenced before check 'sp' (see line 472) Signed-off-by: -
Mauro Carvalho Chehab authored
Right now, media_device_pci_init and media_device_usb_init does media_device allocation internaly. That preents its usage when the media_device struct is embedded on some other structure. Move memory allocation outside it, to make it more generic. Signed-off-by: -
Mauro Carvalho Chehab authored
Those ancillary functions could be called even when compiled without V4L2 support, as warned by ktest build robot: All errors (new ones prefixed by >>): >> ERROR: "__v4l2_mc_usb_media_device_init" [drivers/media/usb/dvb-usb/dvb-usb.ko] undefined! >> ERROR: "__v4l2_mc_usb_media_device_init" [drivers/media/usb/dvb-usb-v2/dvb_usb_v2.ko] undefined! >> ERROR: "__v4l2_mc_usb_media_device_init" [drivers/media/usb/au0828/au0828.ko] undefined! Also, there's nothing there that are specific to V4L2. So, move those ancillary functions to MC core. No functional changes. Just function rename. Signed-off-by: -
Benoit Parrot authored
As reported ctx->sensor is being dereferenced before being checked in cal_get_external_info(). That being the case it was also checked twice in multiple other location where v4l2_subdev_call is already checking it so no need to explicitly check it again. Reported-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
Benoit Parrot <bparrot@ti.com> Signed-off-by:
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Benoit Parrot authored
As reported, the current cal_enum_frameintervals() is confusing and does not have the intended behavior. Fix this by re-implementing to properly propagate the enum_frame_interval request to the subdevice. [mchehab@osg.samsung.com: remove a now bogus "ret = 0" statement] Reported-by:
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Mauro Carvalho Chehab authored
As warned by smatch: drivers/media/dvb-frontends/dib0090.c:1118 dib0090_pwm_gain_reset() error: we previously assumed 'state->rf_ramp' could be null (see line 1086) Signed-off-by:
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