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path: root/drivers/media/video/cx18
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2009-12-16V4L/DVB (13555): v4l: Use video_device_node_name() instead of the minor numberLaurent Pinchart
Instead of using the minor number in kernel log messages, use the device node name as returned by the video_device_node_name() function. This makes debug, informational and error messages easier to understand for end users. [mchehab.redhat.com: removed tm6000 changes as tm6000 is not ready yet for submission even on staging] Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16V4L/DVB (13550): v4l: Use the new video_device_node_name functionLaurent Pinchart
Fix all device drivers to use the new video_device_node_name function. This also strips kernel log messages from the "/dev/" prefix, has the device node location is a userspace policy decision unknown to the kernel. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-09Merge branch 'for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (345 commits) V4L/DVB (13542): ir-keytable: Allow dynamic table change V4L/DVB (13541): atbm8830: replace 64-bit division and floating point usage V4L/DVB (13540): ir-common: Cleanup get key evdev code V4L/DVB (13539): ir-common: add __func__ for debug messages V4L/DVB (13538): ir-common: Use a dynamic keycode table V4L/DVB (13537): ir: Prepare the code for dynamic keycode table allocation V4L/DVB (13536): em28xx: Use the full RC5 code on HVR-950 Remote Controller V4L/DVB (13535): ir-common: Add a hauppauge new table with the complete RC5 code V4L/DVB (13534): ir-common: Remove some unused fields/structs V4L/DVB (13533): ir: use dynamic tables, instead of static ones V4L/DVB (13532): ir-common: Add infrastructure to use a dynamic keycode table V4L/DVB (13531): ir-common: rename the debug routine to allow exporting it V4L/DVB (13458): go7007: subdev conversion V4L/DVB (13457): s2250: subdev conversion V4L/DVB (13456): s2250: Change module structure V4L/DVB (13528): em28xx: add support for em2800 VC211A card em28xx: don't reduce scale to half size for em2800 em28xx: don't load audio modules when AC97 is mis-detected em28xx: em2800 chips support max width of 640 V4L/DVB (13523): dvb-bt8xx: fix compile warning ... Fix up trivial conflicts due to spelling fixes from the trivial tree in Documentation/video4linux/gspca.txt drivers/media/video/cx18/cx18-mailbox.h
2009-12-05V4L/DVB (13478): cx18: remove bogus init call.Hans Verkuil
The cx18 av core implemented an init call for no good reason. It's now turned into an internal function. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Reviewed-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05V4L/DVB (13445): cx18: Use per cx18 instance init data for ir-kbd-i2c ↵Andy Walls
instead of const data This change creates per cx18 instances of IR_i2c_init_data for handing over initialization data to ir-kbd-i2c, since that module wants non-const data even though it never modifies the data. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05V4L/DVB (13434): cx18: Bump version number due to significant buffer ↵Andy Walls
handling changes. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05V4L/DVB (13433): cx18: Remove duplicate list traversal when processing ↵Andy Walls
incoming MDLs Update the incoming MDL's buffers' bytesused and sync the buffers for the cpu in one pass instead of two. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05V4L/DVB (13432): cx18: Adjust encoder VBI MDL size to be exactly frame's ↵Andy Walls
worth of VBI data Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05V4L/DVB (13431): cx18: Adjust an MDL's final buffer size to force encoder ↵Andy Walls
transfer size The encoder was not honoring the MDL size sent in DE_SET_MDL mailbox commands. This change adjusts the size of the last buffer in an MDL, as reported to the firmware, so that the encoder will send the exact amount of bytes we specify per MDL transfer. This eliminates tearing in YUV playback when using non-default YUV buffer sizes. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05V4L/DVB (13430): cx18: Fix YUV capture so that encoder passes a single frame ↵Andy Walls
per transfer Fix YUV capture such that the encoder will pass one frame per transfer. This will allow the application to maintain frame alignment when a transfer from the encoder is missed due to high system latency in service the CX23418 IRQ. Also force YUV buffer sizes to be specified in multiples of 33.75 kB, the smalled amount of buffer sizes need to store a complete set of HM12 4:2:0 macroblocks specifying 32 lines of the frame. A full 60Hz/525 line screen requires 15 * 33.75 kB per frame and a full 50Hz/625 line screen requires 18 * 33.75 kB per frame so the default buffer size is 3 * 33.75 kB, requiring exactly 5 or 6 buffers per MDL respectively. The bytes needed per frame and hence MDL need not be the bytes in an integer number of buffers. However, if frame artifacts are seen with scaled screen sizes, the YUV buffer size can be set 34 kB (33.75 kB) to get rid of the artifacts at the cost of more copies between the kernel and userspace. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05V4L/DVB (13429): cx18: Add Memory Descriptor List (MDL) layer to buffer handlingAndy Walls
Add a Memory Descriptor List (MDL) layer to buffer handling to implement scatter-gather I/O. Currently there is still only 1 buffer per MDL. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05V4L/DVB (13428): cx18: Rename mdl_offset to mdl_base_idx or free_mdl_idx as ↵Andy Walls
appropriate Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05V4L/DVB (13427): cx18: Rename struct cx18_queue.buffers to struct ↵Andy Walls
cx18_queue.depth Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05V4L/DVB (13426): cx18: Rename struct cx18_mdl to struct cx18_mdl_entAndy Walls
Rename type in anticipation of implementing a struct cx18_mdl type that actually keeps track of a memory descriptor list. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05V4L/DVB (13331): mxl5005s: provide ability to override QAM gain for HVR-1600Devin Heitmueller
The HVR-1600 doesn't use the standard mechanism for computing the gain when in QAM mode, instead always forcing it to be 0x02. Provide the ability to override the algorithm on a per-board basis. This change results in an improvement of 0.4-0.6 dB for QAM tuning. This work was sponsored by ONELAN Limited. Cc: Steven Toth <stoth@kernellabs.com> Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05V4L/DVB (13329): s5h1409: provide HVR-1600 specific optimizationsDevin Heitmueller
Perform some optimization of the register configuration based on a trace of the HVR-1600 Windows i2c traffic (and consultation with Steven Toth). Note that some of these values may be able to be moved into the common driver, but I am holding off on that until they can be tested with other boards. This work was sponsored by ONELAN Limited. Cc: Steven Toth <stoth@kernellabs.com> Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05V4L/DVB (13288): adding __init/__exit macros to various driversPeter Huewe
Trivial patch which adds the __init/__exit macros to the module_init/ module_exit functions of the following drivers in media video: drivers/media/video/ivtv/ivtv-driver.c drivers/media/video/cx18/cx18-driver.c drivers/media/video/davinci/dm355_ccdc.c drivers/media/video/davinci/dm644x_ccdc.c drivers/media/video/saa7164/saa7164-core.c drivers/media/video/saa7134/saa7134-core.c drivers/media/video/cx23885/cx23885-core.c Cc: Hermann Pitton <hermann-pitton@arcor.de> Acked-by: Steven Toth <stoth@kernellabs.com> Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Acked-by: Andy Walls <awalls@radix.net> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Muralidharan Karicheri <m-karicheri2@ti.com> Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-04tree-wide: fix misspelling of "definition" in commentsAdam Buchbinder
"Definition" is misspelled "defintion" in several comments; this patch fixes them. No code changes. Signed-off-by: Adam Buchbinder <adam.buchbinder@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-11-09media/video: add __init/__exit macros to various driversPeter Huewe
Trivial patch which adds the __init/__exit macros to the module_init/ module_exit functions of the following drivers in media video: drivers/media/video/ivtv/ivtv-driver.c drivers/media/video/cx18/cx18-driver.c drivers/media/video/davinci/dm355_ccdc.c drivers/media/video/davinci/dm644x_ccdc.c drivers/media/video/saa7164/saa7164-core.c drivers/media/video/saa7134/saa7134-core.c drivers/media/video/cx23885/cx23885-core.c Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Acked-by: Andy Walls <awalls@radix.net> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Muralidharan Karicheri <m-karicheri2@ti.com> Acked-By: Steven Toth <stoth@kernellabs.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-09-19V4L/DVB (12725): v4l: warn when desired devnodenr is in use & add _no_warn ↵Hans Verkuil
function Warn when the desired device node number is already in use, except when the new video_register_device_no_warn function is called since in some use-cases that warning is not relevant. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-09-19V4L/DVB (12723): ivtv/cx18: replace 'kernel number' with 'device node number'.Hans Verkuil
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-09-19V4L/DVB (12540): v4l: simplify v4l2_i2c_new_subdev and friendsHans Verkuil
Rewrite v4l2_i2c_new_subdev as a simplified version of v4l2_i2c_new_subdev_cfg and remove v4l2_i2c_new_probed_subdev and v4l2_i2c_new_probed_subdev_addr. This simplifies this API substantially. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-09-19V4L/DVB (12884): cx18: Eliminate warning about discarding 'const' is ↵Andy Walls
assignment for IR init i2c-kbd-i2c allows a bridge driver to pass information about IR configuration, but uses a "void *" to pass along what is essentially constant data. This change casts a const * to a void * to remove the warning. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-09-12V4L/DVB (12699): cx18: ir-kbd-i2c initialization data should point to a ↵Andy Walls
persistent object ir-kbd-i2c's ir_probe() function can be called much later (i.e. at ir-kbd-i2c module load), than the lifetime of a struct IR_i2c_init_data allocated off of the stack in cx18_i2c_new_ir() at registration time. Make sure we pass a pointer to a persistent IR_i2c_init_data object at i2c registration time. Thanks to Brian Rogers for pointing out a solution, and Dustin Mitchell for testing against a 2.6.30 kernel. Reported-by: Dustin Mitchell <soxslayer@gmail.com> Reported-by: Brian Rogers <brian@xyzw.org> Tested-by: Dustin Mitchell <soxslayer@gmail.com> Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-09-12V4L/DVB (12595): common/ir: use a struct for keycode tablesMauro Carvalho Chehab
Currently, V4L uses a scancode table whose index is the scancode and the value is the keycode. While this works, it has some drawbacks: 1) It requires that the scancode to be at the range 00-7f; 2) keycodes should be masked on 7 bits in order for it to work; 3) due to the 7 bits approach, sometimes it is not possible to replace the default keyboard to another one with a different encoding rule; 4) it is different than what is done with dvb-usb approach; 5) it requires a typedef for it to work. This is not a recommended Linux CodingStyle. This patch is part of a larger series of IR changes. It basically replaces the IR_KEYTAB_TYPE tables by a structured table: struct ir_scancode { u16 scancode; u32 keycode; }; This is very close to what dvb does. So, a further integration with DVB code will be easy. While we've changed the tables, for now, the IR keycode handling is still based on the old approach. The only notable effect is the redution of about 35% of the ir-common module size: text data bss dec hex filename 6721 29208 4 35933 8c5d old/ir-common.ko 5756 18040 4 23800 5cf8 new/ir-common.ko In thesis, we could be using above u8 for scancode, reducing even more the size of the module, but defining it as u16 is more convenient, since, on dvb, each scancode has up to 16 bits, and we currently have a few troubles with rc5, as their scancodes are defined with more than 8 bits. This patch itself shouldn't be doing any functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-09-12V4L/DVB (12367): cx18: Add i2c initialization for Z8F0811/Hauppage IR ↵Andy Walls
transceivers This patch add support to the cx18 driver for setting up the Z8F0811/Hauppauge IR Tx/Rx chip with the i2c binding model in newer kernels. Signed-off-by: Andy Walls <awalls@radix.net> Reviewed-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-09-12V4L/DVB (12343): Stop defining I2C adapter IDs nobody usesJean Delvare
There is no point in defining I2C adapter IDs when no code is using them. As this field might go away in the future, stop using it when we don't need to. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-09-12V4L/DVB (12207): cx18: Add an EEPROM dump routine for the Yuan MPC718 and ↵Andy Walls
future cards Add a routine for dumping the EEPROM of the MPC718. It is generic enough to use for other cards in the future that may have an EEPROM. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-09-12V4L/DVB (12199): remove redundant tests on unsignedRoel Kluin
input, inp and i are unsigned. When negative they are wrapped and caught by the other test. Cc: Andy Walls <awalls@radix.net> Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-09-12V4L/DVB (12196): cx18-fileops.c: Remove unnecessary semicolonsJoe Perches
Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Andy Walls <awalls@radix.net> Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-08-13V4L/DVB (12338): cx18: Read buffer overflowAndy Walls
This mistakenly tested against sizeof(freqs) instead of the array size. Due to the mask the only illegal value possible was 3. Reported-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-07-05V4L/DVB (12182): cx18: Add DVB-T support for Yuan MPC-718 cards with an ↵Andy Walls
MT352 or ZL10353 Add DVB-T support for Yuan MPC-718 cards with an MT352 or ZL10353 demodulator. There are apparently some units with a DiBcom demodulator which could be supported by one of the dib7000 modules - but this is not implemented in the cx18 driver (yet). Due to lack of porgramming details for the MT352 and the mt352 module requiring a "demod_init" function, a "firmware" must be obtained and loaded to get DVB-T working for Yuan MPC-718 cards with an MT352. Tested-by: Steve Firth <firth650@btinternet.com> Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-07-05V4L/DVB (12180): cx18: Update Yuan MPC-718 card entry with better ↵Andy Walls
information and guesses Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12104): ivtv/cx18: fix regression: class controls are no longer seenHans Verkuil
A previous change (v4l2-common: remove v4l2_ctrl_query_fill_std) broke the handling of class controls in VIDIOC_QUERYCTRL. The MPEG class control was broken for all drivers that use the cx2341x module and the USER class control was broken for ivtv and cx18. This change adds back proper class control support. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-16V4L/DVB (11951): cx18: Add DVB-T support for the Leadtek WinFast DVR3100 HAndy Walls
This adds support for DVB-T on the Leadtek DVR3100 H and should also get analog TV capture from the tuner working properly as well. DVB-T 6 MHz and 8 MHz have been tested and verified to work by Terry Wu of Leadtek. DVB-T 7 MHz has also been verified working with a change developed by Terry to the tuner-xc2028.c driver. Special thanks go to Terry Wu <terrywu2009@gmail.com> of Leadtek who provided the needed information and testing to get digital TV working for the Leadtek DVR3100 H. Reported-by: Terry Wu <terrywu2009@gmail.com> Tested-by: Terry Wu <terrywu2009@gmail.com> Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-16V4L/DVB (11950): cx18: Split LeadTek PVR2100 and DVR3100 H into 2 separate ↵Andy Walls
card entries Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-16V4L/DVB (11898): cx18: Perform 64 bit divide so it works for 32 bit systemsAndy Walls
Thanks to David Ward and Mike Krufky for reporting the problem and debugging this as an unresolved symbol due to a 64 bit divide on a 32 bit system. David Ward provided the content of this patch; Andy Walls only performed some cosmetic edits. Reported-by: David Ward <david.ward@gatech.edu> Signed-off-by: David Ward <david.ward@gatech.edu> Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-16V4L/DVB (11865): cx18: Tweak color burst gate delay and initial color ↵Andy Walls
sub-carrier freq Fix the burst gate delays to use a crystal value of 28636360 as assumed by the rest of the driver. Also have the initial color sub-carrier freq paramter use the src decimation ratio per the documentation, instead of the actual crystal/pixel clock ratio. The tracking circuit will find the correct color subcarrier in any case, as long as we're close. Also fix up some debug print statements. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-16V4L/DVB (11864): cx18: Complete support for Sliced and Raw VBI for 625 line ↵Andy Walls
systems Finish changes for sliced and raw VBI for 625 line systems. Tested with VPS and WSS being emitted by a PVR-350 in field 1 lines 16 and 23. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-16V4L/DVB (11863): cx18: Initial attempt to get sliced VBI working for 625 ↵Andy Walls
line systems Initial changes to get sliced VBI for 625 line system working. This is patch is untested. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-16V4L/DVB (11752): cx18: Add missing newline to tuner detection error messageAndy Walls
Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-16V4L/DVB (11703): cx18: Have audio decoder drive SIF gain control, and rework ↵Andy Walls
AFE config Ensure the variable gain amplifier gain for SIF is driven by the audio deocder and not the video decoder. This forced rework of the analog front end (AFE) configuration to not rely on autoconfiguration, but instead set up the AFE mux, AFE parameters, and ADC1 & ADC2 configurations explicitly. Reported-by: Helen Buus <mythtv@hbuus.com> Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-16V4L/DVB (11624): cx18: Toggle the AI1 mux when changing the ↵Andy Walls
CX18_AUDIO_ENABLE register Toggle the AI1 mux when changing the CX18_AUDIO_ENABLE register. It's hard to reliably tell when we have written to this register successfully unless we change some bits we know we can read back. The AI mux bits always read back what we wrote to them, so force them to toggle whenever we have to write to the register, so we can tell we wrote to the register successfully. This change was prompted by users experiencing broadcast audio decoding problems after the cx18 module loads for the first time. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-16V4L/DVB (11623): cx18: Verify cx18-av-core digitizer firmware loads correctlyAndy Walls
Add code to verify the cx18-av-core digitizer firmware loads correctly. The verification function reads back and compares the firmware bytes loaded into the A/V core. The result of the verification is only used to log a message in the system log. This change was prompted by users with multiple card setups that have problems with broadcast audio decoding the first time the cx18 module is loaded. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-16V4L/DVB (11622): cx18: Allow IVTV format VBI insertion in MPEG-2 SVCD and ↵Andy Walls
DVD streams Both the MPEG-2 SVCD stream format and the MPEG-2 DVD stream format should use an MPEG-2 PS container. This makes it safe to stuff IVTV Private Stream 1 VBI packets in these stream types using the existing cx18 driver routines. Reported-by: Helen Buus <mythtv@hbuus.com> Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-16V4L/DVB (11620): cx18: Increment version due to significant buffer handling ↵Andy Walls
changes Version bump from 1.1.0 to 1.2.0 Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-16V4L/DVB (11619): cx18: Simplify the work handler for outgoing mailbox commandsAndy Walls
Simplify the way outgoing work handler gets scheduled to send empty buffers back to the firmware for use. Also reduced the memory required for scheduling this outgoing work, by using a single, per stream work object. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-16V4L/DVB (11618): cx18: Convert per stream mutex locks to per queue spin locksAndy Walls
To avoid sleeps in providing buffers to user space and in handling incoming buffers from the capture unit, converted the per stream mutex for locking queues to 3 spin locks. There is now a spin lock per queue to increase concurrency when moving buffers around. Also simplified queue manipulations and buffer handling of incoming buffers of data from the capture unit. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-16V4L/DVB (11617): cx18: Set up to wait for a one-shot response before sending ↵Andy Walls
a firmware cmd When sending an outgoing firmware command, prepare to wait before we raise the interrupt, so we don't miss the wake_up() on the acknowledgment. When waiting for the acknowledgement, there is no need to loop around schedule(), as there will only be one interrupt, and hence one wake_up(), issued. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-16V4L/DVB (11616): cx18: Add a work queue for deferring empty buffer handoffs ↵Andy Walls
to the firmware This change defers sending all CX18_CPU_DE_SET_MDL commands, for a stream with an ongoing capture, by adding a work queue to handle sending such commands when needed. This prevents any sleeps, caused by notifying the firmware of new usable buffers, when a V4L2 application read() is being satisfied or when an incoming buffer is processed by the cx18-NN-in work queue thread. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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