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path: root/linux/drivers/media/video/video-buf.c
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2007-05-04V4L: Prevent queueing queued buffers.Mauro Carvalho Chehab
From: Sakari Ailus <sakari.ailus@nokia.com> videobuf_qbuf queues buffers to q->stream but does not properly check the state of the buffer before queueing. It was possible to queue buffers that already were in the queue. Only buffers that are in states STATE_NEEDS_INIT and STATE_IDLE can be queued. Signed-off-by: Sakari Ailus <sakari.ailus@nokia.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-02-19compat: Add -include linux/version.h to cflagsTrent Piepho
From: Trent Piepho <xyzzy@speakeasy.org> Add -include linux/version.h to the cflags. Now code can have backward compatibility test without including compat.h first. Linux headers included from compat.h are removed, so that code will get the same headers when compiling in v4l-dvb as it does in the kernel. Many drivers have compat.h moved to the end of their include list, as this lets compat.h do things it can't do at the beginning. Such as test of something is defined to include compat code, or to put a wrapper around a function without changing the function's name. Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
2007-01-25Make vivi driver to use vmalloced pointersMauro Carvalho Chehab
From: Mauro Carvalho Chehab <mchehab@infradead.org> Before this patch, vivi were simulating a scatter gather DMA transfer. While this is academic, showing how stuff really works on a real PCI device, this means a non-optimized code. There are only two memory models that vivi implements: 1) kernel alloced memory. This is also used by read() method. On this case, a vmalloc32 buffer is allocated at kernel; 2) userspace allocated memory. This is used by most userspace apps. video-buf will store this pointer. a simple copy_to_user is enough to transfer data. The third memory model scenario supported by video-buf is overlay mode. This model is not implemented on vivi and unlikely to be implemented on newer drivers, since now, most userspace apps do some post-processing (like de-interlacing). After this patch, some cleanups may be done at video-buf.c to avoid allocating pages, when the driver doesn't need a PCI buffer. This is the case of vivi and usb drivers. Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-01-23Buf_qbuf: fix: videobuf_queue->stream corruption and lockupMauro Carvalho Chehab
From: Oleg Nesterov <oleg@tv-sign.ru> We are doing ->buf_prepare(buf) before adding buf to q->stream list. This means that videobuf_qbuf() should not try to re-add a STATE_PREPARED buffer. Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-01-12Fix bttv and friends on 64bit machines with lots of memoryMauro Carvalho Chehab
From: Gerd Hoffmann <kraxel@novell.com> We have a DMA32 zone now, lets use it to make sure the card can reach the memory we have allocated for the video frame buffers. Signed-off-by: Gerds Hoffmann <kraxel@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-09-30fix compiler warning in drivers/media/video/video-buf.cMauro Carvalho Chehab
From: Sujoy Gupta <sujoy@google.com> Using a double cast to avoid compiler warnings when building for PAE. Compiler doesn't like direct casting of a 32 bit ptr to 64 bit integer. Signed-off-by: Martin J. Bligh <mbligh@google.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-04-11Since we are not using CVS, $Id makes no sense anymoreMauro Carvalho Chehab
From: Mauro Carvalho Chehab <mchehab@infradead.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-03-27Fix video-buf PCI wrappersRicardo Cerqueira
From: Ricardo Cerqueira <v4l@cerqueira.org> After the recent video-buf "generic" adaptation, the PCI wrappers got completely broken, and all of the DMA sound modules stopped working (and failed with an oops) Signed-off-by: Ricardo Cerqueira <v4l@cerqueira.org>
2006-03-25Fix compilation warning at powerpc platformMauro Carvalho Chehab
From: Mauro Carvalho Chehab <mchehab@infradead.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-03-15Avoid warnings at video-buf.cMauro Carvalho Chehab
From: Mauro Carvalho Chehab <mchehab@infradead.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-03-15Merging from mchehab vivi branchMauro Carvalho Chehab
From: Mauro Carvalho Chehab <mchehab@infradead.org> merge: Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-03-13BUG_ON() Conversion in drivers/video/mediaMauro Carvalho Chehab
From: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-03-10Make video_buf more genericMauro Carvalho Chehab
From: Mauro Carvalho Chehab <mchehab@infradead.org> Video_buf were concerned to allow PCI devices to be used as video capture devices. This patch extends video_buf features by virtualizing pci-dependent functions and allowing other type of devices to use it. It is still DMA centric, although it may be used also by devices that emulates scatter/gather behavior or a DMA device Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-02-06sem2mutex: drivers/media/, #2Mauro Carvalho Chehab
Semaphore to mutex conversion. The conversion was generated via scripts, and the result was validated automatically via a script as well. Kernel-sync from patch 3318b Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-01-11From: Panagiotis Issaris <takis@issaris.org>Mauro Carvalho Chehab
Conversions from kmalloc+memset to k(z|c)alloc Conversions from kmalloc+memset to k(z|c)alloc. kernel-sync Signed-off-by: Panagiotis Issaris <takis@issaris.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2005-12-08removed unneeded linux/version.hMauro Carvalho Chehab
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
2005-11-24bttv raw format fix to fix VIDIOCSPICT ioctl.Nickolay V. Shmyrev
From: Michael H. Schimek <mschimek@gmx.at> * ../v4l/linux/drivers/media/video/bttv-driver.c: * ../v4l/linux/drivers/media/video/video-buf.c: bttv raw format fix to fix VIDIOCSPICT ioctl. Signed-off-by: Michael H. Schimek <mschimek@gmx.at> Signed-off-by: Nickolay V. Shmyrev <nshmyrev@yandex.ru>
2005-11-18Fix read() bugs in bttv driver.Nickolay V. Shmyrev
From: Signed-off-by: Nickolay V. Shmyrev <nshmyrev@yandex.ru> Signed-off-by: Michael H. Schimek <mschimek@gmx.at>
2005-10-16- Whitespace Cleanups.Mauro Carvalho Chehab
- Whitespace script improved. Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
2005-10-09From: Mauro Carvalho Chehab <mchehab@brturbo.com.br>Mauro Carvalho Chehab
- Lots of small changes to allow compiling with kernel 2.4. Compilation result not tested yet. - After this patch, .version should be removed, since its syntax has changed. Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
2005-09-13 * bt832.c: (bt832_probe):Michael Krufky
* bttv-i2c.c: (attach_inform): * cx88-i2c.c: (attach_inform), (detach_inform): * id.h: * ir-kbd-i2c.c: (ir_probe): * msp3400.c: (msp34xx_sleep), (msp_attach): * saa6588.c: * saa6752hs.c: * saa7134-i2c.c: (attach_inform): * saa7134-tvaudio.c: (tvaudio_sleep): * tda7432.c: (tda7432_probe): * tda9875.c: (tda9875_probe): * tda9887.c: (tda9887_probe): * tuner-core.c: * tveeprom.c: (tveeprom_attach_adapter): * tvmixer.c: (tvmixer_ioctl), (tvmixer_clients), (tvmixer_cleanup_module): * video-buf.c: (videobuf_dma_free): - Step two, in preparation for 2.6.14-rcX compatability: - Compile tested against vanila kernels 2.6.13 & 2.6.8 - 2.6.14 compile still broken... Signed-off-by: Michael Krufky <mkrufky@m1k.net>
2005-02-24- catch pci_map_sg failure.Gerd Knorr
2004-12-10- add moduleparam.h include to many files.Gerd Knorr
- some pinnacle 300i progress (can talk to mt352 now, not working yet through). - misc minor stuff.
2004-12-02- fix memory leak in drivers.Gerd Knorr
2004-11-07- kill obsolete stuff.Gerd Knorr
2004-11-07- yet another video-buf interface change + fixups.Gerd Knorr
- move more modules to new-style insmod options.
2004-10-13- kill trailing whitespaces.Gerd Knorr
2004-10-11- fix poll/select oops.Gerd Knorr
2004-09-23- make video-bufg don't touch struct file any more, pass throughGerd Knorr
a void ptr instead of a file ptr everythere. - add cx22702 fe driver,
2004-09-15- added a bunch of $Id$ tags.Gerd Knorr
2004-08-25- merge 2.6.9-rc1 changes (mostly __user stuff).Gerd Knorr
2004-05-28- userptr fix.Gerd Knorr
- add KEY_TEXT define for 2.4.
2004-04-19- cx88: some btsc-sap bits (not enabled yet).Gerd Knorr
- saa7134: new entry for the avermedia 305. - misc fixes.
2004-04-14- cx88/tda9887: secam fixes.Gerd Knorr
- video-buf: add sanity checks (thanks to Laurent Pinchart). - saa7133: fix off-by-one bug for oss sound recording.
2004-04-06- make pci_sync change depend on kernel version.Gerd Knorr
2004-04-05- merge video-buf fix from 2.6.5Gerd Knorr
2004-03-08- fix saa7134 oss oops.Gerd Knorr
2004-03-05- more cards supported in ir-kbd-gpio.cGerd Knorr
- add magics to video-buf structs. - fix saa7134 oss driver spinlocks. - misc minor stuff.
2004-02-22Initial revisionGerd Knorr