Commit graph

52213 commits

Author SHA1 Message Date
Steven Toth ddc285c763 V4L/DVB (5434): Updates to the tveeprom tuner, video decoder and audio chip
Some of the new tuner entries may need to be mapped to compatible
tuners already defined. I don't know for certain which tuners
are compatible between manufacturers.

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:45 -03:00
Michael Krufky 923da8a750 V4L/DVB (5432): Cx88: whitespace cleanup
replace leading spaces with tabs

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:45 -03:00
Michael Krufky 733aeaf4c0 V4L/DVB (5431): Cx88: autodetect ADS Tech InstantTV DVB-S
The ADS Tech InstantTV DVB-S is a clone of the KWorld DVB-S 100.
This patch adds autodetection support for this card based on
pci subsystem id.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:44 -03:00
Trent Piepho 57f8dcf90b V4L/DVB (5428): M920x: Detect zero-length I2C messages and fix a typo
Change a 00 to just 0
Detect zero-length I2C messages and return not supported.  I think I know
how to send one, but the problem is getting the slave's ack.  The only
point of a zero-length message is for probing; too see if the slave will
ack its address.  Since we don't know how to get the ack, we can't
support zero-length messages in a useful way, so it's probably best to
just return not supported for them.

Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:43 -03:00
Trent Piepho d40860f8e2 V4L/DVB (5427): M920x: Improve I2C operations
Write some better documentation about what might be known about how the
m920x I2C works, since a datasheet is lacking.
The I2C xfer function should now handle more types of I2C transactions
than it could before.  Those it can't, will return error codes instead of
being executed incorrectly.  Multi-byte reads were not being done
correctly, which should be fixed.

Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:42 -03:00
Aapo Tahkola 634bc48da7 V4L/DVB (5426): M920x: remove unneeded code
Signed-off-by: Aapo Tahkola <aet@rasterburn.org>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:41 -03:00
Aapo Tahkola 480ac76172 V4L/DVB (5425): M920x: rework driver code to allow for different devices
Signed-off-by: Aapo Tahkola <aet@rasterburn.org>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:41 -03:00
Aapo Tahkola 26a154c355 V4L/DVB (5424): Fix i2c implementation for gl861 and au6610
- r/w bit is not part of the i2c address

Signed-off-by: Aapo Tahkola <aet@rasterburn.org>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:36 -03:00
Aapo Tahkola 26247018be V4L/DVB (5423): M920x: i2c cleanups
- Implement m920x i2c as suggested by Pierre Willenbrock
- remove "magic" hack
- r/w bit is not part of the i2c address
- move hardware remarks to header file

Signed-off-by: Aapo Tahkola <aet@rasterburn.org>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:35 -03:00
Hans Verkuil fee73165ee V4L/DVB (5420): Initialize the inputs before registering the devices.
Once the devices have been registered anyone can start changing the inputs or
TV standard before they have been initialized by the driver. This leads to
cases were the input is changed in an udev rule, but after that rule is
triggered the tail-end of the ivtv driver initialization can override
that by selecting the tuner input.
The correct sequence is to first setup the input, initial frequency and TV
standard before finally registering the video devices. This prevents any
udev rules from being triggered prematurely.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:35 -03:00
Hans Verkuil 6816b1991f V4L/DVB (5419): Add comment how the speed field is interpreted.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:34 -03:00
Hans Verkuil 3700a90f05 V4L/DVB (5418): Speed is a signed 32-bit integer, not unsigned.
Negative speed values have to be allowed for reverse playback.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:33 -03:00
Hans Verkuil f40a291684 V4L/DVB (5417): First unregister the driver, and then free the memory.
ivtv_remove which is called by pci_unregister_driver was still using
memory that was already freed. Ouch.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:33 -03:00
Hans Verkuil 6773c1c24d V4L/DVB (5416): Use pci_register_driver instead of pci_module_init in ivtv.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:32 -03:00
Hans Verkuil 1e5e9aab31 V4L/DVB (5414): Add missing kfree in early exit of saa7115.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:31 -03:00
Hans Verkuil d6102900e7 V4L/DVB (5413): Use spin_lock_init to fix lockdep warnings.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:30 -03:00
Hans Verkuil 25415cf3b8 V4L/DVB (5412): Fix VIDIOC_TRY_ENCODER_CMD and VIDEO_TRY_COMMAND
VIDIOC_TRY_ENCODER_CMD did the same as VIDIOC_ENCODER_CMD, now it no longer
touches the encoder.
Both the encoder and decoder commands did not clear the flags field of unknown
flags.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:29 -03:00
Hans Verkuil d4e7ee36f9 V4L/DVB (5411): Use v4l_printk_ioctl for debug
Using v4l_printk_ioctl saves a lot of code duplication. Also moved a few
ioctl cases to another function, improving the ioctl grouping.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:29 -03:00
Hans Verkuil d46c17d7aa V4L/DVB (5410): Add VIDIOC_G/S_PRIORITY support to ivtv.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:28 -03:00
Hans Verkuil a542fe47fe V4L/DVB (5409): Add CARDLIST.ivtv and README.ivtv
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:28 -03:00
Hans Verkuil 3f3f6a5958 V4L/DVB (5407a): Update feature-removal-schedule.txt: remove VIDIOC_S/G_MPEGCOMP
Those two experimental APIs never worked fine nor, afaik, were 
implemented at the apps. Their functionalities were implemented by other 
means.
So, let's remove those obsolete stuff.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:27 -03:00
Hans Verkuil b6735ac24e V4L/DVB (5406): Add comment why the symbols are exported.
It is not immediately obvious why the ivtv symbols are exported
in ivtv-driver.c since both ivtv-fb and the IR-blaster module
are still out-of-tree, currently being ported to be in kernel.

Added a comment so people are aware of these issues.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:26 -03:00
Hans Verkuil 83df8e7b0d V4L/DVB (5405): Add missing includes.
Every file should include the headers containing the prototypes
for its global functions.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:25 -03:00
Hans Verkuil 1e13f9e3f1 V4L/DVB (5404): Merges VBI & YUV handling into a single work queue.
Signed-off-by: Ian Armstrong <ian@iarmst.demon.co.uk>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:24 -03:00
Hans Verkuil 037c86c533 V4L/DVB (5403): Set vsync_field correctly in ivtv.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:23 -03:00
Hans Verkuil 43d0dfcfc6 V4L/DVB (5402): Add vsync_field to the union in video_event for VIDEO_EVENT_VSYNC
VIDEO_EVENT_VSYNC needs to tell the application which field it was that
received a VSYNC (odd/even/progressive). The vsync_field was added to the
union in video_event for this purpose.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:23 -03:00
Oliver Neukum 5332bdbe9a V4L/DVB (5399): Usbvideo module handling
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:22 -03:00
Oleg Nesterov 5cdc178d1c V4L/DVB (5398): Cpia_pp.c: don't use _WORK_NAR
pp_cam_entry->cb_task need not to be _NOAUTOREL ... because in fact it is
never used ???

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:21 -03:00
Adrian Bunk 15f189e978 V4L/DVB (5397): Saa7134: fix MODULES=n compilation
This patch fixes the following compile error with CONFIG_MODULES=n:
  CC      drivers/media/video/saa7134/saa7134-core.o
/home/bunk/linux/kernel-2.6/linux-2.6.21-rc2-mm1/drivers/media/video/saa7134/saa7134-core.c:979:24: error: macro "request_submodules" passed 1 arguments, but takes just 0
/home/bunk/linux/kernel-2.6/linux-2.6.21-rc2-mm1/drivers/media/video/saa7134/saa7134-core.c: In function 'saa7134_initdev':
/home/bunk/linux/kernel-2.6/linux-2.6.21-rc2-mm1/drivers/media/video/saa7134/saa7134-core.c:979: error: 'request_submodules' undeclared (first use in this function)
/home/bunk/linux/kernel-2.6/linux-2.6.21-rc2-mm1/drivers/media/video/saa7134/saa7134-core.c:979: error: (Each undeclared identifier is reported only once
/home/bunk/linux/kernel-2.6/linux-2.6.21-rc2-mm1/drivers/media/video/saa7134/saa7134-core.c:979: error: for each function it appears in.)
make[5]: *** [drivers/media/video/saa7134/saa7134-core.o] Error 1

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:20 -03:00
Trent Piepho 93566ad806 V4L/DVB (5392): Zr364xx: Use kernel's byte-swapping function
Some code to swap bytes wasn't using the swab16() function that the
kernel provides for this.  Make use of it, which results in more
efficient code.

Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Acked-by: Antoine Jacquet <royale@zerezo.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:19 -03:00
Trent Piepho cf3c34c87f V4L/DVB (5391): Saa7134: Clean up printk()s
Change some debug messages from printk() to dprintk().

Add KERN_WARNING and KERN_ERR level indicators to other printk()s that
lacked them.

Format printk lines with consistent ("%s/dvb: ", dev->name) prefix.

Fixed dprintk macro, which had an if with no else that wasn't protected
with a do {} while(0) block.  That leads to "if(...) dprintk(); else" not
doing what one would expect.

Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Acked-by: Hartmut Hackmann <hartmut.hackmann@t-online.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:18 -03:00
Hans Verkuil 3b35b4b380 V4L/DVB (5389): Add tveeprom entry for tuner LG S701D MK3
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:18 -03:00
Andrew Morton a415783bbb V4L/DVB (5388): Ivtv warning fix
drivers/media/video/ivtv/ivtv-i2c.c:547: warning: initializer-string for array of chars is too long
drivers/media/video/ivtv/ivtv-i2c.c:547: warning: (near initialization for 'ivtv_i2c_client_template.name')

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:17 -03:00
Dwaine P. Garden e6c1df5581 V4L/DVB (5386): Add some missing Hauppauge and Belkin devices to the driver
-Add some missing Hauppauge and Belkin devices to the driver.
-Fixed up some device descriptions.

Signed-off-by: Dwaine P. Garden <DwaineGarden@rogers.com>
Signed-off-by: Thierry MERLE <thierry.merle@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:16 -03:00
Antoine Jacquet 2575f84a50 V4L/DVB (5385): Fix compilation issue with zr364xx when V4L1 is disabled
Add a missing header to fix compilation issue in the zr364xx driver when
CONFIG_VIDEO_V4L1 and CONFIG_VIDEO_V4L1_COMPAT are not set.

Signed-off-by: Antoine Jacquet <royale@zerezo.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:15 -03:00
Emil Georgiev a6210b7bea V4L/DVB (5383): Fix duplicated codes in Pinnacle Grey remote
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>
2007-04-27 15:44:15 -03:00
Oliver Endriss 14500d4a51 V4L/DVB (5381): Dvb-ttpci: Update frontend lock status in transfer mode (bugfix)
In transfer/replay mode the frontend lock status was never updated.
This caused a 'black screen' if VDR switched from transfer mode to
live mode on the same transponder.
Thanks to Marco Schluessler for spotting the problem.

Signed-off-by: Oliver Endriss <o.endriss@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:14 -03:00
Jean Delvare bfce1747e8 V4L/DVB (5380): Cx25840-firmware include cleanup
There is no reason why cx25840-firmware.c would need to include
<linux/i2c-algo-bit.h>.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:14 -03:00
Hans Verkuil 31ec135610 V4L/DVB (5379): If possible make vars/functions static.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:13 -03:00
Hans Verkuil 43053c07fa V4L/DVB (5378): Add missing IVTV_FB_WARN #define
This is needed for ivtv-fb.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:13 -03:00
Hans Verkuil a51a50bd01 V4L/DVB (5377): Replace SA_* with IRQF_*
SA_* interrupt flags are being phased out, update to newer flags.
Thanks to Maarten Maathuis for pointing this out to me.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:12 -03:00
Hans Verkuil 4b0e51dd6d V4L/DVB (5376): Add dependency on VIDEO_V4L1
VIDEO_V4L1 is needed to get tvaudio to be built. Stupid really as ivtv is only
using the v4l2 API to communicate with tvaudio.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:12 -03:00
Hans Verkuil 82dcab2d62 V4L/DVB (5375): Add missing VIDEO_CX25840 dep, remove unused VIDEO_TLV320AIC23B dep
VIDEO_CX25840 was missing in the ivtv dependencies. VIDEO_TLV320AIC23B
was removed since it isn't used by ivtv.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:11 -03:00
Trent Piepho d9e54324d0 V4L/DVB (5374): Or51132: refactor i2c code, improve error resilience
The code the i2c transactions was leftover from the old V4L-based ATSC
driver.  It did too little with too much code.  It is re-written to
remove unnecessary parameters and be more efficient.  A demod register
can now be read with one function call, instead of repeating a dozen line
block of code each time.

There were msleep()'s, which appear to be unnecessary, spread around all
the I2C transactions.  These have been removed.  Reading SNR used to take
about 130 ms, now it's down to 1.8 ms.

Reads from the demodulator's registers do not return correct results
sometimes.  Adding or removing the delays in the I2C transactions did not
appear to effect the probability of failure.  If anything, the
transactions without delays were less likely to fail, but since far more
transactions could be made per second the number of failures per hour was
greater.

To increase reliability, the SNR and get_params functions will now retry
once if they get bad data back.  This appears to have reduced the
probability of failure to effectively zero.
Some error messages are cleaned up or given KERN_* levels when they were
missing.  

or51132_setmode() wasn't returning correct error codes, which is fixed as
well.

CC: Rusty Scott <rustys@ieee.org>
Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:09 -03:00
Dennis Ranke 387e69adff V4L/DVB (5373): [PATCH] Hauppauge Nova-T endianess problem on powerpc
When trying to use a Hauppauge Nova-T Stick on a big-endian architecture
(such as powerpc) no frontend can be attached.
The attached patch fixes this problem by removing two lines in
dib0700_ctrl_rd() that try to correct the endianess on two values that
already are correct:
-       /* think about swapping here */
-       value = le16_to_cpu(value);
-       index = le16_to_cpu(index);
With this simple patch this dvb hardware works great, thanks to anyone
involved for the good work. :)

Signed-off-by: Dennis Ranke <mail@exoticorn.de>
Signed-off-by: Patrick Boettcher <pb@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:09 -03:00
Christophe Cattelain ddc9ece89d V4L/DVB (5371): [PATCH] Pinnacle PCTV Sat Pro USB (450e) support by ttusb2.c (400e driver)
Added USB_PID_PCTV_450E to the 'usb_device_id ttusb2_table' and an entry in the
.devices table.  The 400e driver now supports the 'Pinnacle PCTV Sat Pro USB
(450e)' with USB_ID 2304:0222.

Signed-off-by: Christophe Cattelain <xof@skynet.be>
Signed-off-by: Patrick Boettcher <pb@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:08 -03:00
Hartmut Hackmann ede2200d79 V4L/DVB (5369): Fixed 1 byte too short buffer in tda827x.c
- The i2c data buffer in tda827xa_set_params was 1 byte too short
- saa7134-dvb now gives an error mesage if tda827x could not be attached
- coding style fix in tda1004x.c

Signed-off-by: Hartmut Hackmann <hartmut.hackmann@t-online.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:07 -03:00
Mike Isely 8481a7506b V4L/DVB (5367): Pvrusb2: (trivial) Fix too-wide source line
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:06 -03:00
Trent Piepho 6bdcc6e6db V4L/DVB (5363): Dvb: Remove lgh06xf driver
The code of the dvb-pll driver and the lgh06xf driver is nearly
identical.  The main difference is that the lgh06xf driver would set the
AGC TOP value on every tune call.  The dvb-pll driver now has the ability
to set the AGC TOP when the front-end device is opened, which is a better
way to go about it.  By using this ability of dvb-pll, the lgh06xf driver
is made unnecessary.

There is one other difference.  dvb-pll will probe for the presence of an
I2C pll chip by doing a one byte read, the lgh06xf driver did not do
this.  In some devices the PLL is not reachable over I2C at the timer the
tuner is attached.  Some more initialization, such as firmware loading,
must take place first.  None of the devices using a LG-H06xF should have
this problem.

Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Acked-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:05 -03:00
Trent Piepho 26aed92289 V4L/DVB (5362): Dvb-pll: add code for doing tuner initialization
Some tuners need or benefit from initialization, to change certain
settings from their power on default values.

Typically, tuners with TUA603x PLLs can benefit from setting the AGC TOP
value to something else.  This patch includes code to set the AGC TOP to
103 dBuV for the Thomson DTT-761x tuners, which I have experimentally
verified gives the best SNR readings, increasing SNR by about 0.19 dB
over the default value.

Other tuners can make use of this as well.  For example, the separate LG
TDVS-H06xF driver's only difference from dvb-pll is this same setting of
AGC TOP value.

Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:44:04 -03:00