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* [media] Kconfig: add SDR supportAntti Palosaari2014-07-222-2/+13
| | | | | | | Add software defined radio device support for media Kconfig. Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* msi001: move out of stagingAntti Palosaari2014-07-223-0/+507
| | | | | | | Move MSi001 driver from staging to drivers/media/tuners/. Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l: ctrls: Unlocked variants of v4l2_ctrl_s_ctrl{,_int64}()Sakari Ailus2014-07-221-6/+20
| | | | | | | | | | | Implement unlocked variants of v4l2_ctrl_s_ctrl() and v4l2_ctrl_s_ctrl_int64(). As drivers need to set controls as they access driver internal state elsewhere than in the control framework unlocked variants of these functions become handy. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l: ctrls: Provide an unlocked variant of v4l2_ctrl_modify_range()Sakari Ailus2014-07-221-4/+4
| | | | | | | | | | | | Drivers may use the v4l2_ctrl_modify_range() internally as part of other operations that need to be both serialised using a driver's lock which can also be used to serialise access to the control handler. Provide an unlocked version of the function, __v4l2_ctrl_modify_range() which then may be used by drivers for the purpose. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] saa7146: fix compile warningHans Verkuil2014-07-221-7/+6
| | | | | | | | | | | | Fall-out from the recent struct v4l2_framebuffer change. drivers/media/common/saa7146/saa7146_fops.c: In function ‘saa7146_vv_init’: drivers/media/common/saa7146/saa7146_fops.c:536:6: warning: assignment from incompatible pointer type [enabled by default] fmt = &vv->ov_fb.fmt; ^ Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] adv7180: Remove duplicate unregister callIan Molton2014-07-221-1/+0
| | | | | | | | | | | This driver moved over to v4l2_async_unregister_subdev() but still retained a call to v4l2_unregister_subdev(). Remove. Signed-off-by: Ian Molton <ian.molton@codethink.co.uk> Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] s5p-mfc: limit the size of the CPBpanpan liu2014-07-211-3/+6
| | | | | | | | The CPB size is limited by the hardware. Add this limit to the s_fmt. Signed-off-by: panpan liu <panpan1.liu@samsung.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] coda: simplify IRAM setupPhilipp Zabel2014-07-211-101/+74
| | | | | | | | | | | | OVL and BTP IRAM buffers are never used, setup the bits for for DBK/BIT/IP usage depending on CODA version in one place. Also, use a simple allocator function and group IRAM addresses and size in a coda_aux_buf structure. This is done in preparation for CODA960 support. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] coda: fix internal framebuffer allocation sizePhilipp Zabel2014-07-211-2/+2
| | | | | | | | | This error was introduced by 5677e3b04d3b3961200aa2bb9cc715e709eafeb9 "[media] coda: update CODA7541 to firmware 1.4.50". Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] coda: fix h.264 quantization parameter rangePhilipp Zabel2014-07-211-2/+2
| | | | | | | | | | If bitrate is not set, the encoder is running in VBR mode, with the I- and P-frame quantization parameters configured from userspace. For the quantization parameters, 0 is a valid value. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] coda: fix readback of CODA_RET_DEC_SEQ_FRAME_NEEDPhilipp Zabel2014-07-211-1/+1
| | | | | | | | | Previously we'd add one to this value, allocating one additional, superfluous internal buffer. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] coda: fix decoder I/P/B frame detectionPhilipp Zabel2014-07-211-9/+14
| | | | | | | | | | | | Currently the rotator unit is used to copy decoded frames out into buffers provided by videobuf2. Since the CODA reports the I/P/B frame type of the last decoded frame, and this frame will be copied out in a later device_run, depending on display order, we have to store the frame type until such time. This patch also adds the B-frame type. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] s5p-mfc: Fix selective sclk_mfc initJacek Anaszewski2014-07-211-0/+24
| | | | | | | | | | | | | | | | | | | | | | fc906b6d "Remove special clock usage in driver" removed initialization of MFC special clock, arguing that there's no need to do it explicitly, since it's one of MFC gate clock's dependencies and gets enabled along with it. However, there's no promise of keeping this hierarchy across Exynos SoC releases, therefore this approach fails to provide a stable, portable solution. Out of all MFC versions, only v6 doesn't use special clock at all. For other versions log a message only in case clk_get fails, as not all the devices with the same MFC version require initializing the clock explicitly. Signed-off-by: Mateusz Zalega <m.zalega@samsung.com> Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] s5p: fix error code path when failing to allocate DMA memoryMaurizio Lombardi2014-07-211-3/+2
| | | | | | | | | | | | | | In the s5p_mfc_alloc_firmware() function there are some mistakes where the code checks whether the DMA memory is properly allocated or not. First of all dma_alloc_coherent() returns NULL in case of error. The code also checked two times fw_virt_addr, ignoring the bank2_virt pointer. Signed-off-by: Maurizio Lombardi <mlombard@redhat.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] zoran: remove duplicate ZR050_MO_COMP defineDan Carpenter2014-07-181-1/+0
| | | | | | | | | The ZR050_MO_COMP define is cut and pasted twice so we can delete the second instance. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] saa7164-dvb: Remove unnecessary null testHimangi Saraogi2014-07-181-18/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes the null test on dvb. dvb is initialized at the beginning of the function to &port->dvb. Since port is dereferenced prior to the null test, port must be a valid pointer, and &port->dvb cannot be null. The following Coccinelle script is used for detecting the change: @r@ expression e,f; identifier g,y; statement S1,S2; @@ *e = &f->g <+... f->y ...+> *if (e != NULL || ...) S1 else S2 Signed-off-by: Himangi Saraogi <himangi774@gmail.com> Acked-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] media: pvrusb2: make logging code saneAndrey Utkin2014-07-181-9/+3
| | | | | | | | | | | | | | | | | | The issue was discovered by static analysis. It turns out that code is somewhat insane, being if (x) {...} else { if (x) {...} } Edited it to do the only reasonable thing, which is to log the information about the failed call. The most descriptive logging commands set is taken from original code. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=79801 Reported-by: David Binderman <dcb314@hotmail.com> Signed-off-by: Andrey Utkin <andrey.krieger.utkin@gmail.com> Acked-by: Mike Isely <isely@pobox.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] hdpvr: fix reported HDTV colorspaceHans Verkuil2014-07-181-1/+1
| | | | | | | The colorspace for HDTV is REC709, not SMPTE240M. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] cx23885: add support for Hauppauge ImpactVCB-eHans Verkuil2014-07-183-1/+32
| | | | | | | | Add support for Hauppauge model 71100: WinTV-ImpactVCB-e (PCIe, Retail, half height) Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l2-ioctl: clips, clipcount and bitmap should not be zeroedHans Verkuil2014-07-181-1/+25
| | | | | | | | Otherwise you cannot get the current clip and bitmap information from an overlay. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l2-ioctl: call g_selection before calling cropcapHans Verkuil2014-07-171-22/+26
| | | | | | | | | | | | | | | | | If the vidioc_cropcap op is implemented by the driver then the v4l2 core will call that directly. If g_selection is available, then the core cropcap implementation uses g_selection to fill in the bounds and defrect and it sets the pixelaspect to 1x1. But if both are available, then I would like to use g_selection to fill in defrect and bounds before calling cropcap. That way the driver's cropcap implementation doesn't have to set defrect or bounds. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l2-ioctl: clear reserved field of G/S_SELECTIONHans Verkuil2014-07-171-2/+2
| | | | | | | Be sure that the reserved fields are cleared. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l2-ioctl: remove pointless INFO_FL_CLEARHans Verkuil2014-07-171-2/+2
| | | | | | | The edid field is the last field of the struct, so there is nothing to clear. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l2-dev: don't debug poll unless the debug level > 2Hans Verkuil2014-07-171-1/+1
| | | | | | | | Some applications poll a lot, so prevent the poll message from flooding the log. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l2-dev: streamon/off is only a valid ioctl for video, vbi and sdrHans Verkuil2014-07-171-2/+2
| | | | | | | | | The VIDIOC_STREAMON/OFF ioctls are not valid for radio devices, just like the other streaming I/O ioctls. Add the streamon/off ioctls to the other streaming I/O ioctls. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l2-ioctl.c: fix enum_freq_bands handlingHans Verkuil2014-07-171-2/+5
| | | | | | | | | | If the driver supports enum_freq_bands, but only for certain device nodes, then it may return -ENOTTY. But in that case the code should fall into the fall-back case where the current tuner/modulator range is returned. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l2-ioctl.c: check vfl_type in ENUM_FMTHans Verkuil2014-07-171-6/+8
| | | | | | | | | | | | The other format ioctls (g/s/try_fmt) all check if the passed buffer type makes sense for the device node's vfl_type. E.g. it makes no sense for a VBI buffer type to be passed through a video node instead of a vbi node. But this check was missing in ENUM_FMT which can cause a problem if you have both video and sdr device nodes. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l: vb2: Add fatal error condition flagLaurent Pinchart2014-07-171-3/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | When a fatal error occurs that render the device unusable, the only options for a driver to signal the error condition to userspace is to set the V4L2_BUF_FLAG_ERROR flag when dequeuing buffers and to return an error from the buffer prepare handler when queuing buffers. The buffer error flag indicates a transient error and can't be used by applications to detect fatal errors. Returning an error from vb2_qbuf() is thus the only real indication that a fatal error occurred. However, this is difficult to handle for multithreaded applications that requeue buffers from a thread other than the control thread. In particular the poll() call in the control thread will not notify userspace of the error. This patch adds an explicit mechanism to report fatal errors to userspace. Drivers can call the vb2_queue_error() function to signal a fatal error. From this moment on, buffer preparation will return -EIO to userspace, and vb2_poll() will set the POLLERR flag and return immediately. The error flag is cleared when cancelling the queue, either at stream off time (through vb2_streamoff) or when releasing the queue with vb2_queue_release(). Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l: vb2: Don't return POLLERR during transient buffer underrunsLaurent Pinchart2014-07-171-2/+3
| | | | | | | | | | | | | | | | | | | | | | The V4L2 specification states that "When the application did not call VIDIOC_QBUF or VIDIOC_STREAMON yet the poll() function succeeds, but sets the POLLERR flag in the revents field." The vb2_poll() function sets POLLERR when the queued buffers list is empty, regardless of whether this is caused by the stream not being active yet, or by a transient buffer underrun. Bring the implementation in line with the specification by returning POLLERR if no buffer has been queued only when the queue is not streaming. Buffer underruns during streaming are not treated specially anymore and just result in poll() blocking until the next event. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Pawel Osciak <pawel@osciak.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l: vsp1: uds: Fix scaling of alpha layerLaurent Pinchart2014-07-175-35/+122
| | | | | | | | | | | | | | Pixel color components can be scaled using either bilinear interpolation or a multitap filter. The multitap filter provides better results, but can't be selected when the alpha layer need to be scaled down by more than 1/2. Disable alpha scaling when the input has a fixed alpha value, and program the UDS to output a fixed alpha value in that case. This ensures the multitap filter will be used whenever possible. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l: vsp1: bru: Make the background color configurableLaurent Pinchart2014-07-172-5/+49
| | | | | | | | Expose the background color to userspace through the V4L2_CID_BG_COLOR control. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l: vsp1: bru: Support non-premultiplied colors at the BRU outputLaurent Pinchart2014-07-171-2/+9
| | | | | | | | | The BRU outputs premultiplied colors, enable color data normalization when the format configured at the output of the pipeline isn't premultiplied. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l: vsp1: bru: Support premultiplied alpha at the BRU inputsLaurent Pinchart2014-07-173-28/+50
| | | | | | | | | | | Adjust the BRU blending formula to avoid the multiplication by alpha when the corresponding input format is premultiplied. As this requires access to the RPFs connected to the BRU inputs from the BRU module, store pointers to the RPFs in the BRU structure when validating the pipeline. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l: vsp1: Add V4L2_CID_ALPHA_COMPONENT control supportLaurent Pinchart2014-07-173-4/+104
| | | | | | | | The control is used to configure the fixed alpha channel value, when reading from memory in the RPF or writing to memory in the WPF. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l: vsp1: Add alpha channel support to the memory portsLaurent Pinchart2014-07-174-20/+41
| | | | | | | | Support ARGB formats on the RPF side by reading the alpha component from memory and on the WPF side by writing it to memory. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l: vsp1: Switch to XRGB formatsLaurent Pinchart2014-07-171-4/+22
| | | | | | | | | | | | The driver ignores the alpha component on output video nodes and hardcodes the alpha component to 0 on capture video nodes. Make this explicit by exposing XRGB formats. Compatibility with existing userspace applications is handled by selecting the XRGB format corresponding to the requested old RGB format. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l: vsp1: wpf: Clear RPF to WPF association at stream off timeLaurent Pinchart2014-07-171-0/+1
| | | | | | | | | | | | | | | | The VSP1 stores the video pipelines' input (RPF) to output (WPF) mappings in a WPF register. An RPF must never be associated with multiple WPFs, even if all of those WPFs but one are unused, otherwise the hardware won't function properly. The driver doesn't ensure this correctly as it never clears the mappings. An RPF used with one WPF and later with a different WPF will lead to malfunction, as it will be associated with two WPFs. Clear the mappings at stream off time to fix this. Reported-by: Damian Hobson-Garcia <dhobsong@igel.co.jp> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l: vsp1: wpf: Simplify cast to pipeline structureLaurent Pinchart2014-07-171-2/+1
| | | | | | | | Use the subdev pointer directly to_vsp1_pipeline() macro instead of casting from the subdev to the wpf object and back to the subdev. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l: vsp1: sru: Make the intensity controllable during streamingLaurent Pinchart2014-07-173-43/+61
| | | | | | | | | | The control value is currently stored in the SRU structure by the control set handler and written to the hardware at stream on time, making control set during streaming ineffective. Fix it by writing to the registers from within the control set handler. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l: vsp1: sru: Fix the intensity control default valueLaurent Pinchart2014-07-171-1/+11
| | | | | | | | | | | The default value isn't set and defaults to 0, which isn't in the 1-6 min-max range. Fix it by setting the default value to 1. This shoud have been caught when checking the control handler error field at initialization time, but the check was missing. Add it. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l: vsp1: Setup control handler automatically at stream on timeLaurent Pinchart2014-07-172-0/+46
| | | | | | | | | | | | | | | | | | | When setting a control directly on a subdev node the VSP1 driver doesn't guarantee that the device is powered on. This leads to crashes when the control handlers writes to hardware registers. One easy way to fix this is to ensure that the device gets powered on when a subdev node is opened. However, this consumes power unnecessarily, as there's no need to power the device on when setting formats on the pipeline. Furthermore, control handler setup at entity init time suffers from the same problem as the device isn't powered on easier. Fix this by extend the entity base object to setup the control handler automatically when starting the stream. Entities must then skip writing to registers in the set control handler when not streaming, which can be tested with the new vsp1_entity_is_streaming() helper function. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l: vsp1: Propagate vsp1_device_get errors to the callersLaurent Pinchart2014-07-173-13/+9
| | | | | | | | Modify the vsp1_device_get() function to return an error code instead of a pointer to the VSP1 device, and use the return value in the callers. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l: vsp1: Cleanup video nodes at removal timeLaurent Pinchart2014-07-174-12/+18
| | | | | | | | | | | | | Video nodes created and initialized in the RPF and WPF init code paths are never unregistered, and the related resources (videobuf alloc context and media entity) never released. Fix this by storing a pointer to the vsp1_video object in vsp1_entity and calling vsp1_video_cleanup() from vsp1_entity_destroy(). This also allows simplifying the init error code paths. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l: vsp1: Fix typosLaurent Pinchart2014-07-173-10/+10
| | | | | | | | Several macros were mistakenly prefixed with VPS1 instead of VSP1. Fix them. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l: vsp1: Fix pipeline stop timeoutLaurent Pinchart2014-07-171-3/+7
| | | | | | | | | | | | | If the pipeline was already stopped when stopping the stream, no frame end interrupt will be generated and the driver will time out waiting for the pipeline to stop. Fix this by setting the pipeline state to STOPPED when the pipeline is idle waiting for frames to process, and to STOPPING at stream stop time only when the pipeline is currently RUNNING. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l: vsp1: Release buffers at stream stopLaurent Pinchart2014-07-171-0/+3
| | | | | | | | | | | | videobuf2 expects no buffer to be owned by the driver when the stop_stream queue operation returns. As the vsp1 driver fails to do so, a warning is generated at stream top time. Fix this by releasing all buffers queued on the IRQ queue in the stop_stream operation handler and marking them as erroneous. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l: vsp1: Fix routing cleanup when stopping the streamLaurent Pinchart2014-07-171-1/+1
| | | | | | | | | | | | | | | Commit d9b45ed3d8b75e8cf38c8cd1563c29217eecba27 ("v4l: vsp1: Support multi-input entities") reworked pipeline routing configuration and introduced a bug by writing to the entities routing registers without first checking whether the entity had a routing register. This results in overwriting the value at offset 0 of the device register space when stopping the stream. Fix this by skipping routing register write for entities without a routing register. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l: vb2: Fix stream start and buffer completion raceLaurent Pinchart2014-07-171-1/+3
| | | | | | | | | | | | | | | | | videobuf2 stores the driver streaming state internally in the queue in the start_streaming_called variable. The state is set right after the driver start_stream operation returns, and checked in the vb2_buffer_done() function, typically called from the frame completion interrupt handler. A race condition exists if the hardware finishes processing the first frame before the start_stream operation returns. Fix this by setting start_streaming_called to 1 before calling the start_stream operation, and resetting it to 0 if the operation fails. Cc: stable@vger.kernel.org # for v3.15 and up Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l: Add premultiplied alpha flag for pixel formatsLaurent Pinchart2014-07-171-2/+3
| | | | | | | | When set, the new V4L2_PIX_FMT_FLAG_PREMUL_ALPHA flag indicates that the pixel values are premultiplied by the alpha channel value. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] v4l: Support extending the v4l2_pix_format structureLaurent Pinchart2014-07-1725-57/+79
| | | | | | | | | | | | | | | | | | | | | | | | | The v4l2_pix_format structure has no reserved field. It is embedded in the v4l2_framebuffer structure which has no reserved fields either, and in the v4l2_format structure which has reserved fields that were not previously required to be zeroed out by applications. To allow extending v4l2_pix_format, inline it in the v4l2_framebuffer structure, and use the priv field as a magic value to indicate that the application has set all v4l2_pix_format extended fields and zeroed all reserved fields following the v4l2_pix_format field in the v4l2_format structure. The availability of this API extension is reported to userspace through the new V4L2_CAP_EXT_PIX_FORMAT capability flag. Just checking that the priv field is still set to the magic value at [GS]_FMT return wouldn't be enough, as older kernels don't zero the priv field on return. To simplify the internal API towards drivers zero the extended fields and set the priv field to the magic value for applications not aware of the extensions. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-22 12:33:14 +0100