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path: root/linux/drivers/media/video/vivi.c
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2009-05-30vivi: Use v4l bounding/alignment functionTrent Piepho
From: Trent Piepho <xyzzy@speakeasy.org> The v4l function has a better algorithm for aligning image size. Priority: normal Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
2009-03-10merge: http://www.linuxtv.org/hg/~hverkuil/v4l-dvbMauro Carvalho Chehab
From: Mauro Carvalho Chehab <mchehab@redhat.com> Priority: normal Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-03-10avoid loading the entire videodev.h header for drivers that are already V4L2 ↵Mauro Carvalho Chehab
only From: Mauro Carvalho Chehab <mchehab@redhat.com> Priority: normal Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-03-06vivi: fix compile warning.Hans Verkuil
From: Hans Verkuil <hverkuil@xs4all.nl> Priority: normal Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2009-02-14vivi: add slider flag to controls.Hans Verkuil
From: Hans Verkuil <hverkuil@xs4all.nl> Priority: normal Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2009-02-14vivi: controls are per-device, not global.Hans Verkuil
From: Hans Verkuil <hverkuil@xs4all.nl> Priority: normal Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2009-02-14vivi: introduce v4l2_device and do several cleanupsHans Verkuil
From: Hans Verkuil <hverkuil@xs4all.nl> - add v4l2_device - remove BKL - make the debug parameter settable on the fly - set bus_info in querycap Priority: normal Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2009-02-14vivi: update comment to reflect that vivi can now create more than 32 devs.Hans Verkuil
From: Hans Verkuil <hverkuil@xs4all.nl> Priority: normal Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2009-01-11vivi: Implements 4 inputs on viviMauro Carvalho Chehab
From: Mauro Carvalho Chehab <mchehab@redhat.com> This patch adds the capability of selecting between 4 different inputs on vivi driver. Input 0 is the normal color bar, while inputs 1-3 are modified color bars. This allows testing input selection on userspace applications and serves as an implementation model for other drivers. The current approach allows a maximum of 10 different inputs, since the input name generator assumes that we need just one digit to present the input. It shouldn't be hard to modify it to present a bigger name of inputs, but, in fact, it doesn't make much sense of doing it for this test driver. Priority: normal Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-12-30v4l2: introduce v4l2_file_operations.Hans Verkuil
From: Hans Verkuil <hverkuil@xs4all.nl> Introduce a struct v4l2_file_operations for v4l2 drivers. Remove the unnecessary inode argument. Move compat32 handling (and llseek) into the v4l2-dev core: this is now handled in the v4l2 core and no longer in the drivers themselves. Note that this changeset reverts an earlier patch that changed the return type of__video_ioctl2 from int to long. This change will be reinstated later in a much improved version. Priority: normal Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2008-10-19v4l: use video_device.num instead of minor in video%dHans Verkuil
From: Hans Verkuil <hverkuil@xs4all.nl> The kernel number of a v4l2 node (e.g. videoX, radioX or vbiX) is now independent of the minor number. So instead of using the minor field of the video_device struct one has to use the num field: this always contains the kernel number of the device node. I forgot about this when I did the v4l2 core change, so this patch converts all drivers that use it in one go. Luckily the change is trivial. Priority: high Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> CC: michael@mihu.de CC: mchehab@infradead.org CC: corbet@lwn.net CC: luca.risolia@studio.unibo.it CC: isely@pobox.com CC: pe1rxq@amsat.org CC: royale@zerezo.com CC: mkrufky@linuxtv.org CC: stoth@linuxtv.org
2008-10-14Add support for rgb555 pixel formats to viviMauro Carvalho Chehab
From: Magnus Damm <damm@igel.co.jp> This patch adds RGB555 pixel format support to the vivi driver. Both little endian and big endian versions are added. The driver follows the RGB pixel format described in Table 2-2 of the V4L2 API spec, _not_ the older BGR interpretation described in Table 2-1. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-10-14Add support for rgb565 pixel formats to viviMauro Carvalho Chehab
From: Magnus Damm <damm@igel.co.jp> This patch adds RGB565 pixel format support to the vivi driver. Both little endian and big endian versions are added. The driver follows the RGB pixel format described in Table 2-2 of the V4L2 API spec, _not_ the older BGR interpretation described in Table 2-1. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-10-14Add uyvy pixel format support to viviMauro Carvalho Chehab
From: Magnus Damm <damm@igel.co.jp> This patch simply adds UYVY pixel format support to the vivi driver. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-10-14Teach vivi about multiple pixel formatsMauro Carvalho Chehab
From: Magnus Damm <damm@igel.co.jp> This patch contains the ground work to add support for multiple pixel formats to vivi.c Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-10-14Precalculate vivi yuv valuesMauro Carvalho Chehab
From: Magnus Damm <damm@igel.co.jp> This patch improves the color space conversion code in vivi.c to directly draw with precalculated YUV values as palette instead of drawing with YUV that is calculated from RGB for every two pixels. This way we eliminate the need for 9 multiplications every two pixels. A side effect of this patch is that the time counter is changed from green text on black background to white text on black background. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-08-28vivi_release(): fix use-after-freeMauro Carvalho Chehab
From: Adrian Bunk <bunk@kernel.org> video_device_release() does kfree(), which made the following printk() doing a use-after-free. printk() first and release then. Reported-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-08-24vivi: Fix some issues at vivi register routineMauro Carvalho Chehab
From: Mauro Carvalho Chehab <mchehab@infradead.org> This patch fixes several small issues at vivi register routines: 1) minor and n_devs should be unsigned; 2) n_devs = 0 were not properly handled; 3) if n_devs specify a high number, the driver would just roll back and won't register any device. The proper behaviour is to keep all succeded devices registered; 4) both n_devs and minor were using 0 as permissions. Better to have them with 0444. With the current patch, if n_devs specify a very large value, it will register all possible devices. For example, on a machine without any other V4L drivers loaded, with this patch, we will have something like: vivi: V4L2 device registered as /dev/video0 vivi: V4L2 device registered as /dev/video1 vivi: V4L2 device registered as /dev/video2 ... vivi: V4L2 device registered as /dev/video31 video_register_device_index: get_index failed Video Technology Magazine Virtual Video Capture Board ver 0.5.0 successfully loaded. 5) The number of allocated devices on success is now kept at n_devs: $ cat /sys/module/vivi/parameters/n_devs 32 Priority: high Thanks to Henne <henne@nachtwindheim.de> for pointing that there were some issues at vivi. CC: Henne <henne@nachtwindheim.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-30v4l: move BKL down to the driver level.Hans Verkuil
From: Hans Verkuil <hverkuil@xs4all.nl> The BKL is now moved from the video_open function in v4l2-dev.c to the various drivers. It seems about a third of the drivers already has a lock of some sort protecting the open(), another third uses video_exclusive_open (yuck!) and the last third required adding the BKL in their open function. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2008-07-26v4l2-dev: remove unused type and type2 field from video_deviceHans Verkuil
From: Hans Verkuil <hverkuil@xs4all.nl> The type and type2 fields were unused and so could be removed. Instead add a vfl_type field that contains the type of the video device. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2008-07-21videodev: move all ioctl callbacks to a new v4l2_ioctl_ops structHans Verkuil
From: Hans Verkuil <hverkuil@xs4all.nl> All ioctl callbacks are now stored in a new v4l2_ioctl_ops struct. Drivers fill in a const struct v4l2_ioctl_ops and video_device just contains a const pointer to it. This ensures a clean separation between the const ops struct and the non-const video_device struct. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2008-07-20videodev: move some functions from v4l2-dev.h to v4l2-common.h or v4l2-ioctl.hHans Verkuil
From: Hans Verkuil <hverkuil@xs4all.nl> The functions in a header should not belong to another module. The prio functions belong to v4l2-common.c, so move them to v4l2-common.h. The ioctl functions belong to v4l2-ioctl.c, so create a new v4l2-ioctl.h header and move those functions to it. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2008-07-08v4l-dvb: remove support for kernels < 2.6.16Hans Verkuil
From: Hans Verkuil <hverkuil@xs4all.nl> Phase 4 removes the compatibility support for kernels < 2.6.16. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2008-07-08v4l-dvb: remove support for kernels < 2.6.13Hans Verkuil
From: Hans Verkuil <hverkuil@xs4all.nl> Phase 3 of the compat cleanup. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2008-07-08v4l-dvb: remove support for kernels < 2.6.0Hans Verkuil
From: Hans Verkuil <hverkuil@xs4all.nl> First phase of the backwards compatibility cleanup: stop supporting kernels older than 2.6.0. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2008-06-22 V4L/vivi: fix possible memory leak in vivi_fillbuffMauro Carvalho Chehab
From: Marcin Slusarz <marcin.slusarz@gmail.com> Move allocation after first check and fix memory leak. Noticed-by: Daniel MarjamÀki <danielm77@spray.se> Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-10vivi: rename MODULE_NAME macro to VIVI_MODULE_NAME to avoid namespace conflictsMauro Carvalho Chehab
From: Mauro Carvalho Chehab <mchehab@infradead.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-10 vivi: announce that it is registered as /dev/video%dMauro Carvalho Chehab
From: Carl Karsten <carl@personnelware.com> Signed-off-by: Carl Karsten <carl@personnelware.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-05-28videodev: renamed the vidioc_*_fmt_* callbacksHans Verkuil
From: Hans Verkuil <hverkuil@xs4all.nl> The naming for the callbacks that handle the VIDIOC_ENUM_FMT and VIDIOC_S/G/TRY_FMT ioctls was very confusing. Renamed it to match the v4l2_buf_type name. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2008-04-24vivi: fix a warningMauro Carvalho Chehab
From: Mauro Carvalho Chehab <mchehab@infradead.org> some gcc versions complain that fh is used without being defined. The error report is bogus. However, fixing it is trivial. Better to make gcc happy. Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-13vivi: Add a missing \nMauro Carvalho Chehab
From: Mauro Carvalho Chehab <mchehab@infradead.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-04-08media/video/ replace remaining __FUNCTION__ occurrencesMichael Krufky
From: Harvey Harrison <harvey.harrison@gmail.com> __FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
2008-04-02vivi: Simplify the vivi driver and avoid deadlocksBrandon Philips
vivi previously had a very complex queuing system and held spinlocks while doing copy_to_user, kmalloc, etc. This caused the driver to easily deadlock when a multi-threaded application used it and revealed bugs in videobuf too. This replaces the copy_to_user with memcpy since we were never copying to user space addresses. And makes the kmalloc atomic. Signed-off-by: Brandon Philips <bphilips@suse.de> --- linux/drivers/media/video/vivi.c | 317 +++++++++------------------------------ 1 file changed, 81 insertions(+), 236 deletions(-)
2008-04-02vivi: make vivi openable only onceBrandon Philips
vivi currently doesn't have the infrastructure to handle being opened more than one time and will crash if it is. So, make it openable only once. Signed-off-by: Brandon Philips <bphilips@suse.de> --- linux/drivers/media/video/vivi.c | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-)
2008-03-28vivi: Add 32bit compatibility to the moduleMauro Carvalho Chehab
From: Mauro Carvalho Chehab <mchehab@infradead.org> Thanks to Jiri Slaby <jirislaby@gmail.com> for pointing this issue. CC: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-01-13Fix timestamp presentation on vivi driverMauro Carvalho Chehab
From: Mauro Carvalho Chehab <mchehab@infradead.org> Due to date overflow, vivi were not working fine anymore. Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-12-13Cleanup kernel thread and provide overrun detectionMauro Carvalho Chehab
From: Mauro Carvalho Chehab <mchehab@infradead.org> The previous code were a little bit messy. Cleans it up. Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-12-13Add proper locking for buffer fillingMauro Carvalho Chehab
From: Mauro Carvalho Chehab <mchehab@infradead.org> Avoids de-alocating buffers before finishing to fill a buffer Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-12-13Fix vivi internal debug messagesMauro Carvalho Chehab
From: Mauro Carvalho Chehab <mchehab@infradead.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-12-13fix debug enableMauro Carvalho Chehab
From: Mauro Carvalho Chehab <mchehab@infradead.org> The changes at vivi_template make debug option to not work properly. Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-12-13Allow emulating changes of video std by viviMauro Carvalho Chehab
From: Mauro Carvalho Chehab <mchehab@infradead.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-12-10Miscelaneous cleanupsMauro Carvalho Chehab
From: Mauro Carvalho Chehab <mchehab@infradead.org> Manually fixed all pertinent checkpatch.pl errors inside the source code. Also removed some unused code at the driver and a few minor cleanups. Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-12-10Avoid troubles when using multiple devicesMauro Carvalho Chehab
From: Mauro Carvalho Chehab <mchehab@infradead.org> mv_count is a counter used to move the vertical bars. Before this patch, it where a static var. This works fine for just one device. However, when using multiple devices, every device would increment it. This patch moves it to its correct place: struct vivi_dev. So, now, each device has its own data. Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-12-10Allow vivi to open multiple video devicesMauro Carvalho Chehab
From: Mauro Carvalho Chehab <mchehab@infradead.org> Now, it is possible to open multiple vivi devices, by using n_devs parameter. This makes vivi driver closer to a real one. Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-12-10Fix vivi to support non-zero minor nodeMauro Carvalho Chehab
From: Mauro Carvalho Chehab <mchehab@infradead.org> There were a trouble at vivi driver when using non-zero inodes. This where due to not properly preserving the minor inode after calling video_register. Since this driver is a reference for newer drivers, and it is possible to have more than one video device inside the machine, this patch makes vivi to dynamically allocate video_device struct. Thanks to Gregor Jasny <jasny@vidsoft.de> for pointing the issue. Also, this patch removes a very anoying (but useless) message of not having a proper release call. CC: Gregor Jasny <jasny@vidsoft.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-11-13V4L: Convert videobuf drivers to videobuf_stopBrandon Philips
Drivers were using cookie cutter code for stopping the read/stream. Use the new videobuf_stop function which is lock safe. Signed-off-by: Brandon Philips <bphilips@suse.de>
2007-11-06V4L: videobuf: don't chew up namespace STATE_.*, convert to VIDEOBUF_Brandon Philips
s/STATE_NEEDS_INIT/VIDEOBUF_NEEDS_INIT/g s/STATE_PREPARED/VIDEOBUF_PREPARED/g s/STATE_QUEUED/VIDEOBUF_QUEUED/g s/STATE_ACTIVE/VIDEOBUF_ACTIVE/g s/STATE_DONE/VIDEOBUF_DONE/g s/STATE_ERROR/VIDEOBUF_ERROR/g s/STATE_IDLE/VIDEOBUF_IDLE/g Signed-off-by: Brandon Philips <bphilips@suse.de>
2007-10-15v4l core: remove the unused .hardware V4L1 fieldMauro Carvalho Chehab
From: Mauro Carvalho Chehab <mchehab@infradead.org> struct video_device used to define a .hardware field. While initialized on severl drivers, this field is never used inside V4L. However, drivers using it need to include the old V4L1 header. This seems to cause compilation troubles with some random configs. Better just to remove it from all drivers. Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-10Change list_for_each+list_entry to list_for_each_entryTrent Piepho
From: Trent Piepho <xyzzy@speakeasy.org> The rest of V4L files. There is one list_for_each+list_entry in cpia_pp.c that wasn't changed because it expects the loop iterator to remain NULL if the list is empty. A bug in vivi is fixed; the 'safe' version needs to be used because the loop deletes the list entries. Simplify a second loop in vivi and get rid if an un-used variable in that loop. Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
2007-09-27vivi cleanup: remove the unused varsMauro Carvalho Chehab
Last patch series made vivi driver simpler. This patch removes the now unused vars. Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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