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* [media] v4l: vsp1: Add VSP+DU supportLaurent Pinchart2016-02-196-11/+625
| | | | | | | | | Implement internal control of the VSP pipeline to be used by the DU DRM/KMS driver when using the VSP as an internal composer handled through DRM/KMS only. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l: vsp1: Don't validate links when the userspace API is disabledLaurent Pinchart2016-02-1912-17/+27
| | | | | | | | | As the pipeline is configured internally by the driver when the userspace API is disabled its configuration can be trusted and link validation isn't needed. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l: vsp1: Set the alpha value manually in RPF and WPF s_stream handlersLaurent Pinchart2016-02-193-5/+20
| | | | | | | | | | | | | | | | The RPF and WPF alpha values are set through V4L2 controls and applied when starting the video stream by a call to v4l2_ctrl_handler_setup(). As that function uses the control handler mutex it can't be called in interrupt context, where the VSP+DU pipeline handler might need to reconfigure the pipeline. Set the alpha value manually in the RPF and WPF s_stream handler to ensure that the hardware is properly configured even when controlled without the userspace API. If the userspace API is enabled protect that with the control lock to avoid race conditions with userspace. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l: vsp1: Make pipeline inputs array index by RPF indexLaurent Pinchart2016-02-194-7/+22
| | | | | | | | | | | | | | The pipeline inputs array stores pointers to all RPFs contained in the pipeline. It's currently indexed contiguously by adding RPFs in the order they are found during graph walk. This can't easily support dynamic addition and removal of RPFs while streaming, which will be required for combined VSP+DU support. Make the array indexed by RPF index instead and skip NULL elements when iterating over RPFs. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l: vsp1: Make the userspace API optionalLaurent Pinchart2016-02-195-23/+38
| | | | | | | | | The R-Car Gen3 SoCs include VSP instances dedicated to the DU that will be controlled entirely by the rcar-du-drm driver through the KMS API. To support that use case make the userspace V4L2 API optional. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l: vsp1: Move format info to vsp1_pipe.cLaurent Pinchart2016-02-194-154/+159
| | | | | | | | Format information and the related helper function are not specific to the V4L2 API, move them from vsp1_video.c to vsp1_pipe.c. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l: vsp1: Make the BRU optionalLaurent Pinchart2016-02-192-6/+10
| | | | | | | | | Not all VSP instances have a BRU on R-Car Gen3, make it optional. Set the feature unconditionally for now, this will be fixed when adding Gen3 support. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l: vsp1: Make number of BRU inputs configurableLaurent Pinchart2016-02-195-12/+18
| | | | | | | | | | | | The R-Car Gen3 family has 5-inputs BRUs, support them by making the number of BRU inputs configurable. As the driver assumes that the number of BRU inputs is equal to the number of RPFs, replace the BRU_MAX_INPUTS macro with VSP1_MAX_RPF to make the assumption apparent. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l: vsp1: Move entity route setup function to vsp1_entity.cLaurent Pinchart2016-02-193-12/+14
| | | | | | | The function will be used by the DU code, move it out of vsp1_video.c. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l: vsp1: Remove unused module read functionsLaurent Pinchart2016-02-195-27/+0
| | | | | | | Several module read functions are not used, remove them. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l: vsp1: Set the SRU CTRL0 register when starting the streamLaurent Pinchart2016-02-191-0/+1
| | | | | | | | | | | Commit 58f896d859ce ("[media] v4l: vsp1: sru: Make the intensity controllable during streaming") refactored the stream start code and removed the SRU CTRL0 register write by mistake. Add it back. Fixes: 58f896d859ce ("[media] v4l: vsp1: sru: Make the intensity controllable during streaming") Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l: vsp1: Fix typo in VI6_DISP_IRQ_STA_DST register bit nameLaurent Pinchart2016-02-191-1/+1
| | | | | | | | Rename the VI6_DISP_IRQ_STA_DSE register bit to VI6_DISP_IRQ_STA_DST to fix a typo and match the datasheet. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l: vsp1: Document the vsp1_pipeline structureLaurent Pinchart2016-02-191-1/+15
| | | | | Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l: vsp1: Extract link creation to separate functionLaurent Pinchart2016-02-191-39/+56
| | | | | | | Link creation will be handled differently for the DU pipeline. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l: vsp1: Reuse local variable instead of recomputing itLaurent Pinchart2016-02-191-1/+1
| | | | | | | No need to waste CPU cycles when the value we need is already available. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l: vsp1: Extract pipeline initialization code into a functionLaurent Pinchart2016-02-193-5/+12
| | | | | | | The code will be reused outside of vsp1_video.c. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l: vsp1: Rename video pipeline functions to use vsp1_video prefixLaurent Pinchart2016-02-191-14/+14
| | | | | | | | Those functions are specific to video nodes, rename them for consistency. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l: vsp1: Split pipeline management code from vsp1_video.cLaurent Pinchart2016-02-195-280/+340
| | | | | | | | The code will be used to control the vsp1 driver from the DU driver without using video nodes. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l: vsp1: Decouple pipeline end of frame processing from vsp1_videoLaurent Pinchart2016-02-192-8/+19
| | | | | | | | | | To make the pipeline structure and operations usable without video devices the frame end processing must be decoupled from struct vsp1_video. Implement this by calling the video frame end function indirectly through a function pointer in struct vsp1_pipeline. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l: vsp1: Remove struct vsp1_pipeline num_video fieldLaurent Pinchart2016-02-192-6/+2
| | | | | | | | The field is always equal to the num_inputs field plus one, remove the duplicate. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l: vsp1: Move vsp1_video pointer from vsp1_entity to vsp1_rwpfLaurent Pinchart2016-02-194-11/+11
| | | | | | | | Only RPFs and WPFs can be associated with video nodes, don't waste memory by storing the video pointer in all entities. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l: vsp1: Support VSP1 instances without any UDSLaurent Pinchart2016-02-192-2/+3
| | | | | | | | Not all VSP1 instances include a UDS. Make the renesas,#uds DT property optional and accept a number of UDS equal to 0 as valid. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l: vsp1: Make rwpf operations independent of video deviceLaurent Pinchart2016-02-195-27/+35
| | | | | | | | | | The rwpf queue operation doesn't queue a buffer but sets the memory address for the next run. Rename it to set_memory and pass it a new structure independent of the video buffer than only contains memory information. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l: vsp1: Move video device out of struct vsp1_rwpfLaurent Pinchart2016-02-199-60/+63
| | | | | | | | | To make the video device nodes optional we need to decouple the [rw]pf instances from the video devices. Move video devices out of struct vsp1_rwpf and instantiate them dynamically in the core driver code. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l: vsp1: Rename vsp1_video_buffer to vsp1_vb2_bufferLaurent Pinchart2016-02-195-18/+18
| | | | | | | The structure represent a vsp1 videobuf2 buffer, name it accordingly. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l: vsp1: Move video operations to vsp1_rwpfLaurent Pinchart2016-02-195-21/+21
| | | | | | | | | This removes the dependency of vsp1_rpf and vsp1_wpf on vsp1_video, making it possible to reuse the operations without a V4L2 video device node. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l: vsp1: Store the memory format in struct vsp1_rwpfLaurent Pinchart2016-02-196-28/+28
| | | | | | | | Move the format from struct vsp1_video to struct vsp1_rwpf to prepare for VSPD KMS support that will not instantiate V4L2 video device nodes. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l: vsp1: Change the type of the rwpf field in struct vsp1_videoLaurent Pinchart2016-02-194-6/+7
| | | | | | | | | | The rwpf field contains a pointer to the rpf or wpf associated with the video node. Instead of storing it as a vsp1_entity, store the corresponding vsp1_rwpf pointer to allow accessing the vsp1_rwpf fields directly. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l: vsp1: Group all link creation code in a single fileLaurent Pinchart2016-02-194-65/+35
| | | | | | | There's no need to spread the code across multiple source files. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l: vsp1: Add tri-planar memory formats supportLaurent Pinchart2016-02-191-0/+20
| | | | | | | | Tri-planar memory formats store the Y, U and V components in separate planes. The VSP hardware supports them, the driver now does too. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l: Add YUV 4:2:2 and YUV 4:4:4 tri-planar non-contiguous formatsLaurent Pinchart2016-02-195-0/+353
| | | | | | | | | The formats use three planes through the multiplanar API, allowing for non-contiguous planes in memory. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] media: ti-vpe: cal: Fix syntax check warningsBenoit Parrot2016-02-191-8/+9
| | | | | | | | | | | | | | | | | Fix the following sparse warnings: ti-vpe/cal.c:387:26: warning: incorrect type in return expression (different address spaces) ti-vpe/cal.c:459:26: warning: incorrect type in return expression (different address spaces) ti-vpe/cal.c:503:27: warning: incorrect type in argument 6 (different address spaces) ti-vpe/cal.c:509:47: warning: incorrect type in argument 6 (different address spaces) ti-vpe/cal.c:518:47: warning: incorrect type in argument 6 (different address spaces) ti-vpe/cal.c:526:31: warning: incorrect type in argument 6 (different address spaces) ti-vpe/cal.c:1807:24: warning: Using plain integer as NULL pointer ti-vpe/cal.c:1844:16: warning: Using plain integer as NULL pointer Signed-off-by: Benoit Parrot <bparrot@ti.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] s5p-mfc: add the support of V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAMEWu-Cheng Li2016-02-191-0/+12
| | | | | | | | | | | There is a new control V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME to force an encoder key frame. It is the same as requesting V4L2_MPEG_MFC51_VIDEO_FORCE_FRAME_TYPE_I_FRAME. Signed-off-by: Wu-Cheng Li <wuchengli@chromium.org> Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l: add V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAMEWu-Cheng Li2016-02-193-0/+11
| | | | | | | | | | | Some drivers also need a control like V4L2_CID_MPEG_MFC51_VIDEO_FORCE_FRAME_TYPE to force an encoder key frame. Add a general V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME so the new drivers and applications can use it. Signed-off-by: Wu-Cheng Li <wuchengli@chromium.org> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] saa7134: Fix bytesperline not being set correctly for planar formatsHans de Goede2016-02-191-6/+12
| | | | | | | | | | | | | | | bytesperline should be the bytesperline for the first plane for planar formats, not that of all planes combined. This fixes a crash in xawtv caused by the wrong bpl. BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1305389 Reported-and-tested-by: Stas Sergeev <stsp@list.ru> Cc: stable@vger.kernel.org Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] media: ti-vpe: add dependency of HAS_DMASudip Mukherjee2016-02-191-0/+1
| | | | | | | | | | | | | | | | | | The build of m32r allmodconfig fails with the error: drivers/media/v4l2-core/videobuf2-dma-contig.c:492:28: error: implicit declaration of function 'dma_get_cache_alignment' The build of videobuf2-dma-contig.c depends on HAS_DMA and it is correctly mentioned in the Kconfig but the symbol VIDEO_TI_CAL also selects VIDEOBUF2_DMA_CONTIG, so it is trying to compile videobuf2-dma-contig.c even though HAS_DMA is not defined. Fixes: 343e89a792a5 ("[media] media: ti-vpe: Add CAL v4l2 camera capture driver") Cc: Benoit Parrot <bparrot@ti.com> Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] timblogiw: move to staging in preparation for removalHans Verkuil2016-02-197-10/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | The Timberdale FPGA video driver has not seen any real development since 2011 (and very little before that). One of the problems with the timblogiw driver is that it uses videobuf instead of the newer vb2 framework. The long term goal is to either convert or remove any driver still using videobuf. Since none of the core v4l developers has the hardware, we cannot convert it ourselves. As far as I can tell it was only used in an Intel demo board in 2009 using Meego: http://www.chinait.com/intelcontent/intelprc/admin/PDFFile/20106411545.pdf which has since been superseded. Moving this driver to staging is the first step towards removal. After 2 or 3 kernel cycles it will be removed altogether unless someone steps up to clean up this driver. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Richard Röjfors <richard@puffinpack.se> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] adv7511: TX_EDID_PRESENT is still 1 after a disconnectHans Verkuil2016-02-191-6/+15
| | | | | | | | | | | | The V4L2_CID_TX_EDID_PRESENT control reports if an EDID is present. The adv7511 however still reported the EDID present after disconnecting the HDMI cable. Fix the logic regarding this control. And when the EDID is disconnected also call ADV7511_EDID_DETECT to notify the bridge driver. This was also missing. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Cc: <stable@vger.kernel.org> # for v3.12 and up Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] usb/cpia2_core: clean up a min_t() castDan Carpenter2016-02-191-1/+1
| | | | | | | | | | | | It makes sense to make the min_t() cast unsigned here since we don't really want negative sizes. Making it signed causes a static checker warning in Smatch. Smatch knows "fw->size - i" is positive but it doesn't know that fw->size is less than INT_MAX so in theory casting it to int might lead to a negative. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] pvrusb2: correctly handling failed thread runInsu Yun2016-02-191-1/+1
| | | | | | | | | Since kthread_run returns -ENOMEM if failed, it needs to be checked whether it is error, not whether it is null. Signed-off-by: Insu Yun <wuninsu@gmail.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] v4l2-async: Don't fail if registered_async isn't implementedJavier Martinez Canillas2016-02-191-1/+1
| | | | | | | | | | | | | After sub-dev registration in v4l2_async_test_notify(), the v4l2-async core calls the registered_async callback but if a sub-dev driver does not implement it, v4l2_subdev_call() will return a -ENOIOCTLCMD which should not be considered an error. Reported-by: Benoit Parrot <bparrot@ti.com> Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Tested-by: Benoit Parrot <bparrot@ti.com> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] siano: use generic function to create MC deviceMauro Carvalho Chehab2016-02-161-11/+2
| | | | | | | | Currently, it is initializing the driver name using the wrong name ("usb"). Use the generic function, as its logic works best, and avoids repeating the very same code everywhere. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] smsusb: don't sleep while atomicMauro Carvalho Chehab2016-02-161-1/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | smscore_getbuffer() calls internally wait_event(), with can sleep. As smsusb_onresponse() is called on interrupt context, this causes the following warning: BUG: sleeping function called from invalid context at drivers/media/common/siano/smscoreapi.c:1653 in_atomic(): 1, irqs_disabled(): 1, pid: 11084, name: systemd-udevd INFO: lockdep is turned off. irq event stamp: 0 hardirqs last enabled at (0): [< (null)>] (null) hardirqs last disabled at (0): [<ffffffff811480f7>] copy_process.part.7+0x10e7/0x56d0 softirqs last enabled at (0): [<ffffffff81148193>] copy_process.part.7+0x1183/0x56d0 softirqs last disabled at (0): [< (null)>] (null) CPU: 2 PID: 11084 Comm: systemd-udevd Tainted: G B W 4.5.0-rc3+ #47 Hardware name: /NUC5i7RYB, BIOS RYBDWi35.86A.0350.2015.0812.1722 08/12/2015 0000000000000000 ffff8803c6907a80 ffffffff81933901 ffff8802bd916000 ffff8802bd9165c8 ffff8803c6907aa8 ffffffff811c6af5 ffff8802bd916000 ffffffffa0ce9b60 0000000000000675 ffff8803c6907ae8 ffffffff811c6ce5 Call Trace: <IRQ> [<ffffffff81933901>] dump_stack+0x85/0xc4 [<ffffffff811c6af5>] ___might_sleep+0x245/0x3a0 [<ffffffff811c6ce5>] __might_sleep+0x95/0x1a0 [<ffffffffa0ce020a>] ? list_add_locked+0xca/0x140 [smsmdtv] [<ffffffffa0ce3b8d>] smscore_getbuffer+0x7d/0x120 [smsmdtv] [<ffffffff8123819d>] ? trace_hardirqs_off+0xd/0x10 [<ffffffffa0ce3b10>] ? smscore_sendrequest_and_wait.isra.5+0x120/0x120 [smsmdtv] [<ffffffffa0ce020a>] ? list_add_locked+0xca/0x140 [smsmdtv] [<ffffffffa0ce13ca>] ? smscore_putbuffer+0x3a/0x40 [smsmdtv] [<ffffffffa0d107bc>] smsusb_submit_urb+0x2ec/0x4f0 [smsusb] [<ffffffffa0d10e36>] smsusb_onresponse+0x476/0x720 [smsusb] Let's add a work queue to handle the bottom half, preventing this problem. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] siano: firmware buffer is too smallMauro Carvalho Chehab2016-02-161-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As pointed by KASAN: BUG: KASAN: slab-out-of-bounds in memcpy+0x1d/0x40 at addr ffff880000038d8c Read of size 128 by task systemd-udevd/2536 page:ffffea0000000800 count:1 mapcount:0 mapping: (null) index:0x0 compound_mapcount: 0 flags: 0xffff8000004000(head) page dumped because: kasan: bad access detected CPU: 1 PID: 2536 Comm: systemd-udevd Not tainted 4.5.0-rc3+ #47 Hardware name: /NUC5i7RYB, BIOS RYBDWi35.86A.0350.2015.0812.1722 08/12/2015 ffff880000038d8c ffff8803b0f1f1e8 ffffffff81933901 0000000000000080 ffff8803b0f1f280 ffff8803b0f1f270 ffffffff815602c5 ffffffff8284cf93 ffffffff822ddc00 0000000000000282 0000000000000001 ffff88009c7c6000 Call Trace: [<ffffffff81933901>] dump_stack+0x85/0xc4 [<ffffffff815602c5>] kasan_report_error+0x525/0x550 [<ffffffff815606e9>] kasan_report+0x39/0x40 [<ffffffff8155f84d>] memcpy+0x1d/0x40 [<ffffffffa120cb90>] smscore_set_device_mode+0xee0/0x2560 [smsmdtv] Such error happens at the memcpy code below: 0x4bc0 is in smscore_set_device_mode (drivers/media/common/siano/smscoreapi.c:975). 970 sizeof(u32) + payload_size)); 971 972 data_msg->mem_addr = mem_address; 973 memcpy(data_msg->payload, payload, payload_size); 974 975 rc = smscore_sendrequest_and_wait(coredev, data_msg, 976 data_msg->x_msg_header.msg_length, 977 &coredev->data_download_done); 978 979 payload += payload_size; The problem is that the Siano driver uses a header to store the firmware, with requires a few more bytes than allocated. Tested with: PCTV 77e (2013:0257) Hauppauge WinTV MiniStick (2040:5510) Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* Merge branch 'fixes' into patchworkMauro Carvalho Chehab2016-02-163-15/+15
|\ | | | | | | | | | | | | | | | | | | | | Some macros were changed/removed at the material for v4.5. We need to sync with those changes here, in order to avoid troubles. * v4l_for_linus: [media] media.h: get rid of MEDIA_ENT_F_CONN_TEST [media] [for,v4.5] media.h: increase the spacing between function ranges [media] media: i2c/adp1653: probe: fix erroneous return value [media] media: davinci_vpfe: fix missing unlock on error in vpfe_prepare_pipeline()
| * [media] media.h: get rid of MEDIA_ENT_F_CONN_TESTMauro Carvalho Chehab2016-02-163-8/+1
| | | | | | | | | | | | | | Defining it as a connector was a bad idea. Remove it while it is not too late. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
| * [media] [for,v4.5] media.h: increase the spacing between function rangesHans Verkuil2016-02-161-11/+11
| | | | | | | | | | | | | | | | | | | | | | Each function range is quite narrow and especially for connectors this will pose a problem. Increase the function ranges while we still can and move the connector range to the end so that range is practically limitless. [mchehab@osg.samsung.com: Rebased to apply at Linus tree] Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
| * [media] media: i2c/adp1653: probe: fix erroneous return valueAnton Protopopov2016-02-101-1/+1
| | | | | | | | | | | | | | | | | | The adp1653_probe() function may return positive value EINVAL which is obviously wrong. Signed-off-by: Anton Protopopov <a.s.protopopov@gmail.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
| * [media] media: davinci_vpfe: fix missing unlock on error in ↵Wei Yongjun2016-02-101-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | vpfe_prepare_pipeline() Add the missing unlock before return from function vpfe_prepare_pipeline() in the error handling case. video->lock is lock/unlock in function vpfe_open(), and no need to unlock it here, so remove unlock video->lock. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* | [media] media.h: get rid of MEDIA_ENT_F_CONN_TESTMauro Carvalho Chehab2016-02-163-7/+0
| | | | | | | | | | | | | | Defining it as a connector was a bad idea. Remove it while it is not too late. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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