linux/linux-5.4.31/Documentation/media/v4l-drivers/saa7134.rst

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.. SPDX-License-Identifier: GPL-2.0
The saa7134 driver
==================
Author Gerd Hoffmann
This is a v4l2/oss device driver for saa7130/33/34/35 based capture / TV
boards. See http://www.semiconductors.philips.com/pip/saa7134hl for a
description.
Status
------
Almost everything is working. video, sound, tuner, radio, mpeg ts, ...
As with bttv, card-specific tweaks are needed. Check CARDLIST for a
list of known TV cards and saa7134-cards.c for the drivers card
configuration info.
Build
-----
Pick up videodev + v4l2 patches from http://bytesex.org/patches/.
Configure, build, install + boot the new kernel. You'll need at least
these config options:
.. code-block:: none
CONFIG_I2C=m
CONFIG_VIDEO_DEV=m
Type "make" to build the driver now. "make install" installs the
driver. "modprobe saa7134" should load it. Depending on the card you
might have to pass card=<nr> as insmod option, check CARDLIST for
valid choices.
Changes / Fixes
---------------
Please mail me unified diffs ("diff -u") with your changes, and don't
forget to tell me what it changes / which problem it fixes / whatever
it is good for ...
Known Problems
--------------
* The tuner for the flyvideos isn't detected automatically and the
default might not work for you depending on which version you have.
There is a tuner= insmod option to override the driver's default.
Card Variations:
----------------
Cards can use either of these two crystals (xtal):
- 32.11 MHz -> .audio_clock=0x187de7
- 24.576MHz -> .audio_clock=0x200000 (xtal * .audio_clock = 51539600)
Some details about 30/34/35:
- saa7130 - low-price chip, doesn't have mute, that is why all those
cards should have .mute field defined in their tuner structure.
- saa7134 - usual chip
- saa7133/35 - saa7135 is probably a marketing decision, since all those
chips identifies itself as 33 on pci.
LifeView GPIOs
--------------
This section was authored by: Peter Missel <peter.missel@onlinehome.de>
- LifeView FlyTV Platinum FM (LR214WF)
- GP27 MDT2005 PB4 pin 10
- GP26 MDT2005 PB3 pin 9
- GP25 MDT2005 PB2 pin 8
- GP23 MDT2005 PB1 pin 7
- GP22 MDT2005 PB0 pin 6
- GP21 MDT2005 PB5 pin 11
- GP20 MDT2005 PB6 pin 12
- GP19 MDT2005 PB7 pin 13
- nc MDT2005 PA3 pin 2
- Remote MDT2005 PA2 pin 1
- GP18 MDT2005 PA1 pin 18
- nc MDT2005 PA0 pin 17 strap low
- GP17 Strap "GP7"=High
- GP16 Strap "GP6"=High
- 0=Radio 1=TV
- Drives SA630D ENCH1 and HEF4052 A1 pinsto do FM radio through
SIF input
- GP15 nc
- GP14 nc
- GP13 nc
- GP12 Strap "GP5" = High
- GP11 Strap "GP4" = High
- GP10 Strap "GP3" = High
- GP09 Strap "GP2" = Low
- GP08 Strap "GP1" = Low
- GP07.00 nc
Credits
-------
andrew.stevens@philips.com + werner.leeb@philips.com for providing
saa7134 hardware specs and sample board.