- 05 Dec, 2009 40 commits
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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:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by:
Mauro Carvalho Chehab <mchehab@redhat.com>
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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
Signed-off-by:
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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
Signed-off-by:
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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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Michael Krufky authored
Convert tda18271_rf_tracking_filter_cal.rf_[ab][12] from int to s32. Convert tda18271_priv.tm_rfcal from unsigned int to u8. Cast subtractions between u32 values as s32. Signed-off-by:
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Michael Krufky authored
Use temporary variables for signed calulations between unsigned values Signed-off-by:
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Henk Vergonet authored
This adds a forgotten module_param macro needed to set a deemphasis of 50us. It is the standard setting for commercial FM radio broadcasts outside the US. Signed-off-by:
Henk Vergonet <Henk.Vergonet@gmail.com> Signed-off-by:
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Michael Krufky authored
Allow dvb-usb adapter drivers to specify a fe_ioctl_override callback to enable device-specific handling of DVB frontend operations. Signed-off-by:
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Michael Krufky authored
override set_frontend to allow rf input path switching on the HVR1275 Signed-off-by:
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Michael Krufky authored
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Andy Walls authored
This changes adds IR Rx keypress input event handling to the CX23885 module. This change specifically only adds input handling for IR devices implemented as v4l2_subdevices, using only the pulse width mode (for now), and only with RC-5 remotes. The V4L-DVB infrastructure is missing too much to support RC-6 mode 6A as used in many media center remotes. The grey Hauppauge RC-5 remote and HVR-1850 IR receiver work now. Signed-off-by:
Andy Walls <awalls@radix.net> Signed-off-by:
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Andy Walls authored
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Andy Walls authored
Add integrated IR subdevice interrupt and notification handling. This is in preparation of input keypress handling changes for the cx23885 module. Signed-off-by:
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Andy Walls authored
This change completes the v4l2_subdev implementation for IR receive for the IR controller built into the CX23888. This changes almost completes the IR transmit side also, but doesn't. Instead notes in the comments describe what needs to be done for IR Tx to work in the subdevice implementation. The current Tx behavior is skeletal and benign. If left alone, it does nothing. It will only ever generate a Tx interrupt on Tx init by a caller or when the tx_write() method is called. The ISR, when called, will then disable the Tx FIFO service interrupt. Signed-off-by:
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