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path: root/drivers/media/common
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2008-02-18V4L/DVB (7192): Adds support for Genius TVGo A11MCEAdrian Pardini
Signed-off-by: Adrian Pardini <pardo.bsso@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-02-18V4L/DVB (7120): videobuf lock is already initialized at videobuf-core.cMauro Carvalho Chehab
Removes the duplicated mutex_init code. Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-02-18V4L/DVB (7133): Fix Kconfig dependenciesMauro Carvalho Chehab
As pointed by Adrian Bunk, with I2C=m and VIDEO_DEV=y, videodev brokes. This patch moves the functions that videodev needs from v4l2-common. It also fixes some Kconfig changes. After this patch, I2C=m / VIDEO_DEV=y will make v4l2 core statically linked into kernel. v4l2-common will be m, and all V4L drivers will also be m. This approach is very conservative, since it is possible to have V4L drivers that don't need I2C or v4l2-common. The better is to map what drivers really need v4l2-common, making them to select v4l2-common, and allowing the others to be 'y', 'm' and 'n'. Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-02-03drivers/media/: Spelling fixesJoe Perches
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Adrian Bunk <bunk@kernel.org>
2008-01-25V4L/DVB (7058): IR corrections for the Pinnacle 800iSteven Toth
IR corrections for the Pinnacle 800i Signed-off-by: Steven Toth <stoth@hauppauge.com> Signed-off-by: Chaogui Zhang <czhang1974@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-01-25V4L/DVB (7035): drivers/media/common: Add missing video_device_releaseJulia Lawall
Video_device_alloc returns the result of a kzalloc. In this case, the value is stored in a local variable which is not copied elsewhere before the point of the error return (video_register_device does not save its first argument anywhere if it returns a negative value). Thus, a video_device_release it needed before the error return. The problem was found using the following semantic match. (http://www.emn.fr/x-info/coccinelle/) // <smpl> @@ type T,T1,T2; identifier E; statement S; expression x1,x2,x3; int ret; @@ T E; ... * E = video_device_alloc(...); if (E == NULL) S ... when != video_device_release(...,(T1)E,...) when != if (E != NULL) { ... video_device_release(...,(T1)E,...); ...} when != x1 = (T1)E when != E = x3; when any if (...) { ... when != video_device_release(...,(T2)E,...) when != if (E != NULL) { ... video_device_release(...,(T2)E,...); ...} when != x2 = (T2)E ( * return; | * return ret; ) } // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> CC: Oliver Endriss <o.endriss@gmx.de> CC: Michael Hunold <michael@mihu.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-01-25V4L/DVB (6973): Add Beholder TV 401/405/407/409/505/507/609/M6 supportAndrey J. Melnikoff (TEMHOTA)
This patch updates cardlist for Beholder TV tuners: old models (with GPIO ir) 401, 403, 405, 407, 409, 505, 507 and add support for 607, 609, M6 cards with new i2c-ir. Signed-off-by: Igor Kuznetsov <igk72@yandex.ru> Signed-off-by: Andrey J. Melnikov <temnota@kmv.ru> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-01-25V4L/DVB (6685): ir-keymaps.c: extra keys on winfast Y04G0033 remoteMichel Lespinasse
This change adds support for 4 extra keys on the remote currently being shipped by leadtek with their "WinFast TV2000 XP/Expert" and "WinFast PVR2000" cards. The remote P/N seems to be Y04G0033 and you can see a picture of it here: http://lespinasse.org/y04g0033.jpg The extra keys are at the bottom and are labeled MCE +VOL, -VOL, +CH, -CH. I chose to map them to the F21-F24 keycodes, following the precedent of ir_codes_gotview7135[], so as to differentiate these 'MCE' keys from the other +VOL, -VOL, +CH, -CH 'arrow' keys higher up on the remote. Signed-off-by: Michel Lespinasse <walken@zoy.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-01-25V4L/DVB (6600): V4L: videobuf: don't chew up namespace STATE_.*, convert to ↵Brandon Philips
VIDEOBUF_ 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> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-01-25V4L/DVB (6574): common/ir-functions.c: make a function staticAdrian Bunk
ir_rc5_decode() can become static. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-01-25V4L/DVB (6508): ttpci: Rework Kconfig menus and MakefileTrent Piepho
The ttpci Kconfig file has bugs that cause it to fail in certain Kconfig situations. The basic problem is that it selects certain drivers, but does not depend on the dependencies of those drivers. See http://article.gmane.org/gmane.comp.video.video4linux/35072 Using the Kconfig file also has some annoyances. For instance one can't turn off AV7110 support unless you go down several options and first turn off budget-patch support. Normally user selectable drivers are not forced on like this. The "AV7110 cards with Budget Patch" option is disabled if "Budget cards" isn't on. Normally a driver appears nested under a driver it depends on, but since drivers that don't depend on "Budget cards" are between the two options, the config programs can't display the tree correctly. The Makefile has an issue too. Some modules, ttpci-eeprom and budget-core, appear in the Makefile under several different config symbols. If more than one of these symbols is on, they will get added the to list of objects multiple times. The normal convention is to have a config symbol just the common object(s) and have the users of the that object either depend on or select that config symbol. This patch fixes all these issues. ttpci-eepom is under a new config symbol, and so is the budget-core module. The four different budget card types appear as sub-drivers under a main "SAA7146 DVB cards" option. Turning on budget-patch doesn't force AV7110. Drivers using SAA7146_VV have the necessary VIDEO_DEV dependency, so that it isn't possible to select SAA7146_VV without V4L being on. Signed-off-by: Trent Piepho <xyzzy@speakeasy.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-12-11V4L/DVB (6615): V4L: Fix VIDIOCGMBUF locking in saa7146Brandon Philips
Fallout from videobuf_mmap_setup() locking fixes. Signed-off-by: Brandon Philips <bphilips@suse.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-12-11V4L/DVB (6601): V4L: videobuf-core locking fixes and commentsBrandon Philips
- Add comments to functions that require that caller hold q->lock - Add __videobuf_mmap_free that doesn't hold q->lock for use within videobuf - Add locking to videobuf_mmap_free - Fix linux/drivers/media/common/saa7146_video.c which was holding lock around videobuf_read_stop - Add locking to functions that operate on a queue - Add videobuf_stop to take care of stopping in both the read and stream case TODO: bttv still has an unsafe call to videobuf_queue_is_busy Signed-off-by: Brandon Philips <bphilips@suse.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-11-04V4L/DVB (6495): saa7146: saa7146_wait_for_debi_done fixesOliver Endriss
Two fixes for the 'saa7146_wait_for_debi_done' code: (a) Timeout did not work when the routine was called with interrupts disabled. (b) Reduce PCI I/O load caused by saa7146_wait_for_debi_done. Seems to be very important on fast machines! Based on code posted by Hartmut Birr @vdr-portal. Signed-off-by: Oliver Endriss <o.endriss@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-24SG: Change sg_set_page() to take length and offset argumentJens Axboe
Most drivers need to set length and offset as well, so may as well fold those three lines into one. Add sg_assign_page() for those two locations that only needed to set the page, where the offset/length is set outside of the function context. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-22Merge branch 'master' of ↵Linus Torvalds
ssh://master.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb * 'master' of ssh://master.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb: (37 commits) V4L/DVB (6382): saa7134: fix NULL dereference at suspend time for cards without IR receiver V4L/DVB (6380): ivtvfb: Removal of the 'osd_compat' module option V4L/DVB (6379): patch which improves GotView Saa7135 remote control V4L/DVB (6378b): Updates info about the removal of V4L1 at feature-removal-schedule.txt V4L/DVB (6378a): Removal of VIDIOC_[G|S]_MPEGCOMP from feature-removal-schedule.txt V4L/DVB (6378): DiB0700-device: Using 1.10 firmware V4L/DVB (6357): pvrusb2: Improve encoder chip health tracking V4L/DVB (6356): "while (!ca->wakeup)" breaks the CAM initialisation V4L/DVB (6352): ir-kbd-i2c: Missing break statement V4L/DVB (6350): V4L: possible leak in em28xx_init_isoc V4L/DVB (6348): ivtv: undo video mute when closing the radio V4L/DVB (6347): ivtv: fix video mute when radio is used V4L/DVB (6346): ivtvfb: YUV output size fix when ivtvfb is not loaded V4L/DVB (6345): ivtvfb: YUV handling of an image which is not visible in the display area V4L/DVB (6343): ivtvfb: check return value of unregister_framebuffer V4L/DVB (6342): ivtv: fix circular locking (bug 9037) V4L/DVB (6341): ivtv: fix resizing MPEG1 streams V4L/DVB (6340): ivtvfb: screen mode change sometimes goes wrong V4L/DVB (6339): ivtv: set the video color to black instead of green when capturing from the radio V4L/DVB (6338): ivtv: fix incorrect EBUSY return ...
2007-10-22[SG] Update drivers to use sg helpersJens Axboe
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-22V4L/DVB (6379): patch which improves GotView Saa7135 remote controlPedro
improve GoTView PCI7135 remote control working under linux. Acked-by: Hermann Pitton <hermann-pitton@arcor.de> Acked-by: Nickolay V. Shmyrev <nshmyrev@yandex.ru> Signed-off-by: Eugene M. Roginskii <roginovicci@nm.ru> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-19Convert files to UTF-8 and some cleanupsJan Engelhardt
* Convert files to UTF-8. * Also correct some people's names (one example is Eißfeldt, which was found in a source file. Given that the author used an ß at all in a source file indicates that the real name has in fact a 'ß' and not an 'ss', which is commonly used as a substitute for 'ß' when limited to 7bit.) * Correct town names (Goettingen -> Göttingen) * Update Eberhard Mönkeberg's address (http://lkml.org/lkml/2007/1/8/313) Signed-off-by: Jan Engelhardt <jengelh@gmx.de> Signed-off-by: Adrian Bunk <bunk@kernel.org>
2007-10-10V4L/DVB (6305): V4L: videobuf-core.c avoid NULL dereferences in videobuf-coreBrandon Philips
The return value of videobuf_alloc() is unchecked but this function will return NULL on an error. Check for NULL and make videobuf_reqbufs() return the number of successfully allocated buffers. Also, fix saa7146_video.c and bttv-driver.c to use this returned buffer count. Tested against the vivi driver. Not tested against saa7146 or bt8xx devices. Signed-off-by: Brandon Philips <bphilips@suse.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09V4L/DVB (6252): Adapt drivers to use the newer videobuf modulesMauro Carvalho Chehab
PCI-dependent videobuf_foo methods were renamed as videobuf_pci_foo. Also, videobuf_dmabuf is now part of videobuf-dma-sg private struct. So, to access it, a subroutine call is needed. This patch renames all occurences of those function calls to be consistent with the video-buf split. Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org> http://thread.gmane.org/gmane.comp.video.video4linux/34978/focus=34981 Reviewed-by: Ricardo Cerqueira <v4l@cerqueira.org>
2007-10-09V4L/DVB (6179): Clean up FusionHDTV ir codeMichael Krufky
- fixed missing buttons in keymap. - make function names & descriptions more generic, since this same ir receiver and remote is used in many FusionHDTV products. - miscellaneous cleanups. Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09V4L/DVB (6178): add IR remote support for FusionHDTV 5 RT GoldChaogui Zhang
This patch adds support for the built-in IR receiver of the DViCO Fusion HDTV5 RT GOLD PCI card, using FusionHDTV MCE remote controller. Signed-off-by: Chaogui Zhang <czhang1974@gmail.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09V4L/DVB (6079): Cleanup: remove linux/moduleparam.h from drivers/media filesMauro Carvalho Chehab
Since at least kernel 2.6.12-rc2, module.h includes moduleparm.h. This patch removes all occurences of moduleparm.h from drivers/media files. Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09V4L/DVB (5987): saa7146: clean-up irq processingOliver Endriss
Interrupt processing fixed: First handle interrupt, then acknowledge it. Otherwise the same interrupt might occur twice. Cleaned-up i2c interrupt handler and i2c error messages. Signed-off-by: Oliver Endriss <o.endriss@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09V4L/DVB (5934): dvb-ttpci/saa7146: Replace saa7146_i2c_transfer by generic ↵Oliver Endriss
i2c_transfer Convert av7110_v4l.c to use i2c_transfer() instead of saa7146_i2c_transfer(). Make saa7146_i2c_transfer() static. Signed-off-by: Oliver Endriss <o.endriss@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-07-20V4L/DVB (5859): use msecs_to_jiffies on InfraRed RC5 timeoutMauro Carvalho Chehab
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-07-18V4L/DVB (5835): saa7146/dvb-ttpci: Fix signedness warnings (gcc 4.1.1, ↵Oliver Endriss
kernel 2.6.22) Fix signedness warnings (gcc 4.1.1, kernel 2.6.22). Signed-off-by: Oliver Endriss <o.endriss@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-07-18V4L/DVB (5832): ir-common: optimize bit extract functionTrent Piepho
New code is simpler, shorter, compiles to about half the size, and is 2 to 4 times faster depending on how many bits in the mask are set. Signed-off-by: Trent Piepho <xyzzy@speakeasy.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-06-08V4L/DVB (5702): Fix Kconfig items to avoid linkedition errorsMauro Carvalho Chehab
The recent changes on Kconfig broke compilation when VIDEO_DEV is compiled as module. On some cases, drivers like VIDEO_BUF are compiled with 'y' option instead of 'm': ... Thanks to: Toralf Forster <toralf.foerster@gmx.de> for pointing this issue. Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-05-09V4L/DVB (5592): DMA: Correctly free resources on error, sync PCI streamed dataJon Burgess
I added saa7146_vmalloc_destroy_pgtable() which frees the resources allocated by saa7146_vmalloc_build_pgtable() and updated the callers in budget-core.c and av7110.c. I have also been through the updated functions and updated the error paths to ensure they free all allocated resources on error. I also realised that there are other callers to saa7146_pgtable_free() which did not have any sg DMA mapped so it seems wrong to add the pci_unmap_sg() into that function. Instead I created saa7146_vmalloc_destroy_pgtable() to do this. Also included in this patch are the previous fixes for pci_unmap_sg() and syncing the PCI streamed data to work with a SWIOTLB and match the requirements documented in DMA-API.txt. Signed-off-by: Jon Burgess <jburgess777@googlemail.com> Signed-off-by: Oliver Endriss <o.endriss@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-05-09V4L/DVB (5591): Saa7146: proper prototype for saa7146_video_do_ioctl()Adrian Bunk
This patch adds a proper prototype for saa7146_video_do_ioctl() in include/media/saa7146_vv.h. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Oliver Endriss <o.endriss@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27V4L/DVB (5545): Saa7146: Release capture buffers on device closeHartmut Birr
If the video device (saa7146 on a FF card) was open for capturing, the close call didn't release the capture buffers. Signed-off-by: Hartmut Birr <e9hack@gmail.com> Signed-off-by: Oliver Endriss <o.endriss@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27V4L/DVB (5520): Add support for the extra keys in the black Technotrend 1500 IRVille-Pekka Vainio
It has come to my knowledge that the Technotrend 1500 DVB cards have been sold bundled with at least two different kinds of remotes, a grey one and a black one. This patch adds support for the extra keys in the black remote to ir-keymaps.c. Signed-off-by: Ville-Pekka Vainio <vpivaini@cs.helsinki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27V4L/DVB (5383): Fix duplicated codes in Pinnacle Grey remoteEmil Georgiev
The keymap for this remote had duplicated labels for different keys, which resulted in those key pairs being unable to function as different inputs. Signed-off-by: Emil Georgiev <emilonlinester@gmail.com> Signed-off-by: Ricardo Cerqueira <v4l@cerqueira.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-03-27V4L/DVB (5332): Ir_rc5_timer_end decoder lockup fixVincent Penne
ir_rc5_timer_end decoder lockup fix Signed-off-by: Vincent Penne <ziggy@sashipa.com> Signed-off-by: Hermann Pitton <hermann-pitton@arcor.de> Signed-off-by: Hartmut Hackmann <hartmut.hackmann@t-online.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-02-21V4L/DVB (5193): Remove the unused kernel config option VIDEO_VIDEOBUFRobert P. J. Day
Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-02-21V4L/DVB (5160): Saa7146_vv: pass correct memory size to pci_free_consistentMarco Schluessler
Pass correct memory size to pci_free_consistent. Signed-off-by: Marco Schluessler <marco@lordzodiac.de> Signed-off-by: Oliver Endriss <o.endriss@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-02-21V4L/DVB (5070): Budget-ci: add support for the Technotrend 1500 bundled remoteVille-Pekka Vainio
The keymap is based on a previous patch by Jussi Kukkonen. This remote is identified by subsystem_device id 0x1010. Signed-off-by: Ville-Pekka Vainio <vpivaini@cs.helsinki.fi> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-02-21V4L/DVB (5015): Add support for more Encore TV cardsJuan Pablo Sormani
Signed-off-by: Juan Pablo Sormani <sorman@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-02-21V4L/DVB (4961): Add support for the ASUS P7131 remote controlHermann Pitton
Besides adding the board specific code, this patch moves the RC5 decoding code from bt8xx to ir-functions.c to make it available for all drivers. Signed-off-by: Marc Fargas <telenieko.telenieko.com> Signed-off-by: Hermann Pitton <hermann-pitton@arcor.de> Signed-off-by: Hartmut Hackmann <hartmut.hackmann@t-online.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-02-12[PATCH] mark struct file_operations const 4Arjan van de Ven
Many struct file_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. [akpm@sdl.org: dvb fix] Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-09[PATCH] misc duplicate field initializersAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2006-12-27V4L/DVB (5001): Add two required headers on kernel 2.6.20-rc1Mauro Carvalho Chehab
include/media/ir-common.h:78: error: field 'work' has incomplete type drivers/media/common/ir-functions.c: In function 'ir_rc5_timer_end': drivers/media/common/ir-functions.c:301: error: 'jiffies' undeclared (first use in this function) drivers/media/common/ir-functions.c:301: error: (Each undeclared identifier is reported only once) drivers/media/common/ir-functions.c:301: error: for each function it appears in.) drivers/media/common/ir-functions.c:347: error: 'HZ' undeclared (first use in this function) Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-12-10V4L/DVB (4915): Saa7146: Add timeout protection for I2C interruptHartmut Birr
Add a timeout to the wait for the i2c-interrupt. The timeout prevents from endless waiting if the interrupt gets lost. Signed-off-by: Hartmut Birr <e9hack@googlemail.com> Signed-off-by: Oliver Endriss <o.endriss@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-12-10V4L/DVB (4879): budget-ci IR: integrate with ir-commonDavid Hardeman
This converts the budget-ci driver so that it uses ir-common for some of its IR processing. In particular, the keymap for the Nova-T (sub 13c2:1011) is switched to the Hauppauge grey/black keymap, of which the keys on the supplied R808 remote control form a subset. The old budget-ci keymap is moved to ir-keymaps.c and is used for other remotes. The debounce logic for buggy remotes (i.e. Zenith) is made conditional the new debounce parameter and defaults to off (so that repeat keypresses aren't ignored for all working remotes). Some parts are based on Darren Salt's dvb-ir patchset. Signed-off-by: David Hardeman <david@hardeman.nu> Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-11-02V4L/DVB (4784): [saa7146_i2c] short_delay mode fixed for fast machinesOliver Endriss
TT DVB-C 2300 runs at 137 kHz I2C speed. short_delay mode did not work reliably on fast machines with that speed. Increased max loop count from 20 to 50. Moved dummy access out of the loop. Signed-off-by: Oliver Endriss <o.endriss@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-10-05IRQ: Maintain regs pointer globally rather than passing to IRQ handlersDavid Howells
Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-09-26V4L/DVB (4629): Saa7134: add card support for Proteus Pro 2309Michal Majchrowicz
Add card support for Proteus Pro 2309, based on saa7130 bridge Signed-off-by: Michal Majchrowicz <mmajchrowicz@gmail.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-09-26V4L/DVB (4421): V4L2 Conversion: saa5246a, saa5249, vino, hexium_orion, ↵Mauro Carvalho Chehab
hexium_gemini Just a few adjustments were required on those drivers to be V4L2 compliant. Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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