- 05 Dec, 2009 40 commits
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Tuukka Toivonen authored
When the image size (bytesperline*height) is not multiple of PAGE_SIZE, v4l2 rounded the required buffer size to be multiple of PAGE_SIZE. This prevented user space to store images directly into userptr buffers which were not multiple of PAGE_SIZE. This constraint is removed. The start address is still assumed to be required page-aligned, ie., when v4l2 allocates mmap buffers, the offset between different buffers is page-aligned. Signed-off-by:
Tuukka Toivonen <tuukka.o.toivonen@nokia.com> Signed-off-by:
Mauro Carvalho Chehab <mchehab@redhat.com>
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Mauro Carvalho Chehab authored
DVBS2API introduced two new ioctls that allows changing/getting details about newer video standards like DVB-S2 and ISDB-T. There are lots of thing to do in this chapter, but, for now, just add a session there, in order to allow make to not complain about undefined symbol. With this patch, all ioctls at the frontend.h API were somehow documented. Signed-off-by: -
Mauro Carvalho Chehab authored
We'll need to add the documentation for FE_[GET|SET]_PROPERTY that is not specific to isdb-t. Instead of doing it at frontend.xml, it is better to have a separate session for it. Also, isdbt.xml assumes that those ioctls were already introduced, and documents several exisiting properties. So, better to just rename it and add the documentation for it, together with each existing property there. Signed-off-by: -
Mauro Carvalho Chehab authored
While this ioctl should not be used, and is a good canditate for Documentation/feature-removal-schedule.txt, while it is on kernel, it needs to be documented. Signed-off-by: -
Mauro Carvalho Chehab authored
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Mauro Carvalho Chehab authored
Adds linux/dvb/frontend.h header file at DocBook, and creates cross-references for the frontend ioctls. Signed-off-by: -
Mauro Carvalho Chehab authored
Rename all sessions id's for frontend ioctls to match ioctl name and add the proper cross-link references for those ioctls. This also helps to identify what ioctls are missing specs. Signed-off-by: -
Mauro Carvalho Chehab authored
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Laurent Pinchart authored
The default streaming control timeout was found by Ondrej Zary to be too low for some Logitech webcams. With kernel 2.6.22 and newer they would timeout during initialization unles the audio function was initialized before the video function. Add a module parameter to set the streaming control timeout and increase the default value from 1000ms to 3000ms to fix the above problem. Thanks to Ondrej Zary for investigating the issue and providing an initial patch. Signed-off-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by:
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Laurent Pinchart authored
At least one 5986:0241 webcam model includes vendor-specific descriptors at the end of its streaming interface descriptors. Print an information UVC_TRACE_DESCR message and try to continue parsing the descriptors rather than bailing out with an error. Signed-off-by:
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Ming Lei authored
This patch sets stream->urb_size as psize*npackets before calling uvc_alloc_urb_buffers, which may fix a possible failure of usb_buffer_free in case usb_buffer_alloc returns NULL. The patch is based on the ideas below: 1,If usb_buffer_alloc can't allocate a buffer sucessfully, uvc_free_urb_buffers will be called to free the allocated buffers, and stream->urb_size is required to be passed to usb_buffer_free; 2,uvc_free_urb_buffers can reset stream->urb_size. This patch is against linux-v2.6.31-next-20090926. Signed-off-by:
Ming Lei <tom.leiming@gmail.com> Acked-by:
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Laurent Pinchart authored
The uvcvideo driver has a driver-wide lock and a reference count to protect against a disconnect/open race. Now that videodev handles the race itself, reference-counting in the driver can be removed. Signed-off-by:
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Laurent Pinchart authored
Dismiss privileges on the file handle when calling VIDIOC_REQBUFS with a buffer count of 0. This allows applications to release the streaming permissions on the file handle without closing it. Signed-off-by:
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Laurent Pinchart authored
The VIDIOC_TRY_FMT ioctl doesn't interfere with video streaming and thus should succeed on an unprivileged file handle. Signed-off-by:
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Laurent Pinchart authored
Use the trace level for messages related to video URB buffers allocation and alternate setting selection. Signed-off-by:
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Laurent Pinchart authored
Return minimum, maximum and step set to 0 without querying the hardware. Signed-off-by:
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Hans de Goede authored
There were various "if (sensor == foo)" pieces of code inside ov519.c, move these bits to the sensor specific init functions, where they belong. Signed-off-by:
Hans de Goede <hdegoede@redhat.com> Signed-off-by:
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Hans de Goede authored
gscpa_ov519: add support for the ovfx2 bridge Signed-off-by:
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Hans de Goede authored
This patch adds support for the OV2610 and OV3610 sensors to the gspca ov519 subdriver. This is a preparation patch for adding ovfx2 bridge support. Signed-off-by:
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Hans de Goede authored
gspca_ov519 cleanup sensor detection Signed-off-by:
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Hans de Goede authored
The CIF sensor type 1 exposure setting got clamped at 300, as settings below 300 do not work well (and do work for the other sensors). This patch scales the 0-4095 range to 300-4095 instead of ignoring changes between 300, avoiding have a part of the control range where nothing happens. This is esp. important for software autogain as done by libv4l. Signed-off-by:
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Hans de Goede authored
While checking all gspca sub drivers pkt_scan functions for a bug I found in 1 of them (and after checking also in another), I noticed a bug in the gspca_sq905c work queue function, once it has decided to start discarding a frame because the application is not reading fast enough (and thus returning buffers to fill fast enough), it never stops discarding. This patch fixes this by simply completely removing the "discarding" variable, if we need to discard the current frame because there is no buffer to store it, the "frame" pointer will be NULL, so that is all we need to check. Signed-off-by:
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Hans de Goede authored
While checking all gspca sub drivers pkt_scan functions for a bug I found in 1 of them (and after checking also in another), I noticed a bug in the gspca_jeilinj work queue function, once it has decided to start discard a frame because the application is not reading fast enough (and thus returning buffers to fill fast enough), it never stops discarding. This patch fixes this by simply completely removing the "discarding" variable, if we need to discard the current frame because there is no buffer to store it, the "frame" pointer will be NULL, so that is all we need to check. I've also moved the gspca_get_i_frame() call and the writing of the jpg header to the buffer to after the first usb_bulk_msg() call, as we don't need it before that, and that will give the app slightly more time to queue a buffer for us to fill. Signed-off-by:
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Theodore Kilgore authored
Improve (and also simplify :) gspca_mr97310a: VGA sensor type detection. As it was still failing on some machines (not with some cams, but on some machines interesting enough). Signed-off-by:
Theodore Kilgore <kilgota@banach.math.auburn.edu> Signed-off-by:
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Hans de Goede authored
-Remove use of unneeded discarding variable -Cleanup locking to only take usb_lock around access to the control endpoint, by no longer taking the lock around the bulk transfer (which takes most of the time) we can remove the msleep(1) which was needed to give the gspca core a chance to grab the usb_lock to signal us to stop. Signed-off-by:
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Theodore Kilgore authored
This patch adds controls for vga cams with sensor type 0, in order to correctly report the present controls, the probing of the sensor type has been moved from sd_start to sd_config, since this made the sensor type probing unreliable the detection method was changed. Note this requires the camera to enter streaming mode, so sd_config now briefly makes the camera stream. Signed-off-by:
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Igor M. Liplianin authored
The patch brings infrared remote support for some cx88 based cards. Such as TeVii S460,S420. Signed-off-by:
Igor M. Liplianin <liplianin@me.by> Signed-off-by:
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Igor M. Liplianin authored
The patch brings infrared remote support for some cx88 based cards. Such as: TeVii S460,S420; Omicom SS4; SatTrade ST4200; TBS 8920,8910; Prof 7300,6200. Signed-off-by:
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Guennadi Liakhovetski authored
This adds an soc-camera / v4l2-subdev driver for the RJ54N1CB0C CMOS camera sensor from Sharp. The sensor is very picky about initialisation and configuration sequences. The driver limits artificially maximum window size by 800x600, although the sensor supports 1600x1200. Sizes above 800x600 don't seem to work correctly, besides, examples from the system integrator use sizes above 640x480 only for still photography. Unfortunately, I had to use "magic" register-value pairs for undocumented and "reserved" registers. This version of the driver also omits some functionality, like cropping, which hasn't been sufficiently tested yet and will be added later. create mode 100644 drivers/media/video/rj54n1cb0c.c Signed-off-by:
Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by:
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Kuninori Morimoto authored
If CEU driver can not receive data from camera, CETCR has VBP error state. Then, CEU is stopped and cure operation is needed. This patch add VBP error cure operation. Signed-off-by:
Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by:
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Kuninori Morimoto authored
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Marton Nemeth authored
Add comment about the meaning of the fixed JPEG header bytes used to create each image. Signed-off-by:
Marton Nemeth <nm127@freemail.hu> Signed-off-by:
Jean-Francois Moine <moinejf@free.fr> Signed-off-by:
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Marton Nemeth authored
Remove redundant register page switching to page 0 when changing the color control. Signed-off-by:
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Marton Nemeth authored
The length check in reg_w_var() function is because the buffer contents is copied to gspca_dev->usb_buf which has the size of USB_BUF_SZ bytes as defined in drivers/media/video/gspca/gspca.h. Replace the number with symbol for better readability and maintainability. Signed-off-by:
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Marton Nemeth authored
Change the magic values 0, 254 and 255 to END_OF_SEQUENCE, LOAD_PAGE4 and LOAD_PAGE3 respectively for better source code readability. Signed-off-by:
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Marton Nemeth authored
Change the magic value 0xaa to SKIP for better understandability. Signed-off-by:
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Rafal Milecki authored
Signed-off-by:
Rafal Milecki <zajec5@gmail.com> Signed-off-by:
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Jean-Francois Moine authored
Signed-off-by:
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Jean-Francois Moine authored
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Michael Krufky authored
Display i2c adapter id, address and master / slave role in debug output. Signed-off-by:
Michael Krufky <mkrufky@kernellabs.com> Signed-off-by:
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