- 14 Sep, 2012 2 commits
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Julia Lawall authored
The result of one call to a function is tested, and then at the second call to the same function, the previous result, and not the current result, is tested again. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression ret; identifier f; statement S1,S2; @@ *ret = f(...); if (\(ret != 0\|ret < 0\|ret == NULL\)) S1 ... when any *f(...); if (\(ret != 0\|ret < 0\|ret == NULL\)) S2 // </smpl> Signed-off-by:
Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by:
Mauro Carvalho Chehab <mchehab@redhat.com>
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Julia Lawall authored
The result of one call to a function is tested, and then at the second call to the same function, the previous result, and not the current result, is tested again. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression ret; identifier f; statement S1,S2; @@ *ret = f(...); if (\(ret != 0\|ret < 0\|ret == NULL\)) S1 ... when any *f(...); if (\(ret != 0\|ret < 0\|ret == NULL\)) S2 // </smpl> Signed-off-by:
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- 13 Sep, 2012 38 commits
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Frank Schäfer authored
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Frank Schäfer <fschaefer.oss@googlemail.com> Signed-off-by:
Hans de Goede <hdegoede@redhat.com> Signed-off-by:
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Frank Schäfer authored
[media] gspca_pac7302: avoid duplicate calls of the image quality adjustment functions on capturing start There is no need to call the image quality adjustment functions in sd_start. The gspca main driver calls v4l2_ctrl_handler_setup in gspca_init_transfer, which already applies all image control values. Signed-off-by:
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Frank Schäfer authored
The current white balance temperature default value is 4, which is much too small (possible values are 0-255). Improve the picture quality by increasing the default value to 55, which is the default value used by the Windows driver. Signed-off-by:
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Frank Schäfer authored
The Windows driver uses page 0 register 0xb6 for sharpness adjustment. Signed-off-by:
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Frank Schäfer authored
Fix a regression from kernel 3.4 which has been introduced with the conversion of the gspca driver to the v4l2 control framework. Signed-off-by:
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Frank Schäfer authored
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Hans de Goede authored
1) We always re-create the input-urb on resume, so we must also always destroy it on suspend to avoid leaking it 2) If we're going to do an init_transfer, then that will destroy the urb before starting the stream (nop if there is none), and (re-)create it once the stream is started. So there is little use in creating it, if we're going to do an init_transfer immediately afterward Signed-off-by:
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Hans de Goede authored
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Hans de Goede authored
gspca_main: init_transfer does not do anything between calling sd_start (which starts the workqueue) and releasing the usb_lock, so this synchronization is a nop, remove it. Signed-off-by:
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Hans de Goede authored
In commit a3d6e8cc gspca_dev->dev is set to NULL on disconnect, before calling stop0. The plan was to get rid of gspca_dev->present and instead simply check for gspca_dev->dev everywhere where we were checking for present. This should be race free since all users of gspca_dev->dev hold the usb_lock, or so I thought. But I was wrong, drivers which use a work-queue + synchronous bulk transfers to get the video data don't hold the usb_lock while doing so, their stop0 callbacks stop the workqueue, so they won't be using gspca_dev->dev anymore after the stop0 call, but they might be dereferincing it before, so we should not set gspca_dev->dev to NULL on disconnect before calling stop0. This also means that the workqueue functions in these drivers cannot use gspca_dev->dev to check if they need to stop because of disconnection, so we will need to keep gspca_dev->present around, and set that to 0 on disconnect, before calling stop0. Unfortunately as part of the plan to remove gspca_dev->present, these workqueues where already moved over to checking for gspca_dev->dev instead of gspca_dev->present as part of commit 254902b0, so this patch also reverts those parts of that commit. Signed-off-by:
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Peter Senna Tschudin authored
Convert a nonnegative error return code to a negative one, as returned elsewhere in the function. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> ( if@p1 (\(ret < 0\|ret != 0\)) { ... return ret; } | ret@p1 = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // </smpl> Signed-off-by:
Peter Senna Tschudin <peter.senna@gmail.com> Signed-off-by:
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Emil Goode authored
This patch changes some signed integers to unsigned because they are not intended for negative values and sparse is making noise about it. Sparse gives eight of these errors: drivers/media/usb/gspca/ov519.c:144:29: error: dubious one-bit signed bitfield Signed-off-by:
Emil Goode <emilgoode@gmail.com> Signed-off-by:
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Ezequiel Garcia authored
struct vb2_queue is allocated through kzalloc as part of a larger struct, there's no need to clear it. Cc: Hans de Goede <hdegoede@redhat.com> Signed-off-by:
Ezequiel Garcia <elezegarcia@gmail.com> Signed-off-by:
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Ezequiel Garcia authored
This lock was being taken using two different names (pointers) in the same function. Both names refer to the same lock, so this wasn't an error; but it looked very strange. Cc: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by:
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Mauro Carvalho Chehab authored
drivers/media/radio/shark2.o: In function `_GLOBAL__sub_I_65535_0_usb_shark_suspend': drivers/media/radio/radio-shark2.c:344: multiple definition of `usb_shark_suspend' drivers/media/radio/radio-shark.o:/home/v4l/v4l/patchwork/drivers/media/radio/radio-shark.c:379: first defined here drivers/media/radio/shark2.o: In function `usb_shark_resume': drivers/media/radio/radio-shark2.c:349: multiple definition of `usb_shark_resume' drivers/media/radio/radio-shark.o:/home/v4l/v4l/patchwork/drivers/media/radio/radio-shark.c:384: first defined here Signed-off-by: -
Hans de Goede authored
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Hans de Goede authored
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Hans de Goede authored
This completes my work on the Griffin radioSHARK2 driver, let me use this opportunity to thank Hisaaki Shibata for his generous donation of a Griffin radioSHARK2 to me, which has made this driver possible. Signed-off-by:
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Hans de Goede authored
freq fits easily into 32 bits until it gets shifted, so make it 32 bits, and cast it to 64 bits before shifting. [mchehab@redhat.com: also remove asm/div64.h header, as this is not needed anymore] Signed-off-by:
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Hans de Goede authored
Add support for tuning AM (on devices with the necessary additional hardware components), and advertise the available bands using the new VIDIOC_ENUM_FREQ_BANDS ioctl. Signed-off-by:
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Hans de Goede authored
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Reinhard Nissl authored
Am 14.08.2012 14:05, schrieb Manu Abraham: >> My other device, a STB0899, always reports the set frequency. So it seems >> driver dependent whether it reports the actually locked frequency found by >> the zig-zag-algorithm or just the set frequency to tune to. > > The STV0299 blindly sets the value based on a software zigzag (due to simpler > hardware), but this might not be accurate enough. On the other hand, the > STB0899 internally does zig-zag in hardware for DVB-S2, and partly in > software for DVB-S. > > In any event, the get_frontend callback should return the value that is read > from the demodulator registers, rather than the cached original value that > which was requested to be tuned. > > The stb0899 returns only the cached value IIRC. Maybe I will fix this soon, > or maybe you can send a patch. This is what I get after the patch: Sat. Pol. Band Freq (MHz) Set Freq (MHz) Get Delta (MHz) S19,2E H L 10744 10748,474 4,474 S19,2E H L 10773 10777,944 4,944 S19,2E H L 10832 10836,953 4,953 S19,2E H L 10861 10868,774 7,774 ... Signed-off-by:
Reinhard Nißl <rnissl@gmx.de> Cc: Manu Abraham <abraham.manu@gmail.com> Signed-off-by:
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Mauro Carvalho Chehab authored
changeset 1248c7cb broke html compilation: Documentation/DocBook/v4l2.xml:584: parser error : Entity 'sub-subdev-g-edid' not defined Documentation/DocBook/v4l2.xml:626: parser error : chunk is not well balanced Documentation/DocBook/media_api.xml:74: parser error : Failure to process entity sub-v4l2 Documentation/DocBook/media_api.xml:74: parser error : Entity 'sub-v4l2' not defined I suspect that one file was simply missed at the patch. Yet, keeping it broken is a very bad idea, so we should either remove the broken patch or to remove just the invalid include. Let's take the latter approach. Due to that, a warning is now produced: Error: no ID for constraint linkend: v4l2-subdev-edid. Cc: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by:
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Laurent Pinchart authored
Compute the horizontal blanking value according to the datasheet. The value written to the hblank and vblank registers must be equal to the number of blank columns and rows minus one. Signed-off-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by:
Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by:
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Laurent Pinchart authored
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Laurent Pinchart authored
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Sakari Ailus authored
Provide pixel rate control calculated from external clock and horizontal binning factor. Signed-off-by:
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Laurent Pinchart authored
These helper functions get and set a 64-bit control's value from within a driver. They are similar to v4l2_ctrl_[gs]_ctrl() but operate on 64-bit integer controls instead of 32-bit controls. Signed-off-by:
Hans Verkuil <hans.verkuil@cisco.com> Acked-by:
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Hans Verkuil authored
Initial version of this driver. The full datasheets are available from the Analog Devices website: http://ez.analog.com/docs/DOC-1741 Not all features of the receiver are supported by this driver for various reasons. Most notably: - No CEC support (the CEC API needs a lot more discussion) - No HDCP repeater support (we don't use that either) I'm sure that there are more things missing, but this driver does work well for our hardware. Note that I am using the register addresses instead of register names: the datasheet containing the register descriptions is organized by register address. Using names would make the datasheet lookup very hard. An attempt was made to try and document what is being done when registers are used instead. Signed-off-by:
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Hans Verkuil authored
Initial version of this driver. The full datasheets are available from the Analog Devices website: http://ez.analog.com/docs/DOC-1545 Not all features of the receiver are supported by this driver for various reasons. Most notably: - No CEC support (the CEC API needs a lot more discussion) - Only port A of the four HDMI input ports is implemented (our hardware only uses that port) - No HDCP repeater support (we don't use that either) And since there are some 600-odd pages of datasheet for this single device, I'm sure that there are many more things missing, but this driver does work well for our hardware. Note that I am using the register addresses instead of register names: the datasheet containing the register descriptions is organized by register address. Using names would make the datasheet lookup very hard. An attempt was made to try and document what is being done when registers are used instead. Signed-off-by:
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Hans Verkuil authored
These two helper functions detect whether the analog video timings detected by the video receiver match the VESA CVT or GTF standards. They basically do the inverse of the CVT and GTF modeline calculations. This patch also adds a helper function that will determine the aspect ratio based on the provided EDID values. This aspect ratio can be given to the GTF helper function. Signed-off-by:
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Hans Verkuil authored
Add the v4l_match_dv_timings function that can be used to compare two v4l2_dv_timings structs. Signed-off-by:
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Hans Verkuil authored
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Hans Verkuil authored
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Hans Verkuil authored
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Hans Verkuil authored
These new controls and two new ioctls make it possible to properly support VGA, DVI-A/D/I, HDMI and DisplayPort connectors. All these controls and the ioctls are all at the sub-device level. They are meant for V4L2 bridge/platform drivers or to be accessed on embedded systems through /dev/v4l-subdev* device nodes. Signed-off-by:
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Antti Palosaari authored
Those files were left from dvb-usb-v2 development as I have made mistake during rebase operation. Reported-by:
Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by:
Antti Palosaari <crope@iki.fi> Signed-off-by:
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Antti Palosaari authored
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