linux/drivers/media/IR/Kconfig
Jarod Wilson 7a569f524d V4L/DVB: IR/streamzap: functional in-kernel decoding
This patch makes in-kernel decoding with the stock Streamzap PC Remote
work out of the box. There are quite a few things going on in this
patch, all related to getting this working:

1) I had to enable reporting of a long space at the end of each signal,
   or I had weird buffering and keybounce issues.

2) The keymap has been reworked slightly to match actual decoded values,
   the first edition was missing the pre-data bits present in the lirc
   config file for this remote.

3) There's a whole new decoder included, specifically for the
   not-quite-RC5 15-bit protocol variant used by the Streamzap PC
   Remote. The decoder, while usable with other recievers (tested with
   an mceusb receiver), will only be loaded by the streamzap driver, as
   its likely not of use in almost all other situations. This can be
   revisited if/when all keytable loading (and disabling of unneeded
   protocol decoder engines) is moved to userspace, but for now, I think
   this makes the most sense.

Note that I did try to enable handling the streamzap RC5-ish protocol in
the current RC5 decoder, but there's no particularly easy way to tell if
its 14-bit RC5 or 15-bit Streamzap until we see bit 14, and even then,
in testing an attempted decoder merge, only 2/3 of the keys were
properly recognized as being the 15-bit variant and decoded correctly,
the rest were close enough to compliant with 14-bit that they were
decoded as such (but they have overlap with one another, and thus we
can't just shrug and use the 14-bit decoded values).

Also of note in this patch is the removal of the streamzap driver's
internal delay buffer. Per discussion w/Christoph, it shouldn't be
needed by lirc any longer anyway, and it doesn't seem to make any
difference to the in-kernel decoder engine. That being the case, I'm
yanking it all out, as it greatly simplifies the driver code.

Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-21 01:04:47 -02:00

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menuconfig IR_CORE
tristate "Infrared remote controller adapters"
depends on INPUT
default INPUT
---help---
Enable support for Remote Controllers on Linux. This is
needed in order to support several video capture adapters.
Enable this option if you have a video capture board even
if you don't need IR, as otherwise, you may not be able to
compile the driver for your adapter.
config VIDEO_IR
tristate
depends on IR_CORE
default IR_CORE
if IR_CORE
config LIRC
tristate
default y
---help---
Enable this option to build the Linux Infrared Remote
Control (LIRC) core device interface driver. The LIRC
interface passes raw IR to and from userspace, where the
LIRC daemon handles protocol decoding for IR reception and
encoding for IR transmitting (aka "blasting").
source "drivers/media/IR/keymaps/Kconfig"
config IR_NEC_DECODER
tristate "Enable IR raw decoder for the NEC protocol"
depends on IR_CORE
select BITREVERSE
default y
---help---
Enable this option if you have IR with NEC protocol, and
if the IR is decoded in software
config IR_RC5_DECODER
tristate "Enable IR raw decoder for the RC-5 protocol"
depends on IR_CORE
select BITREVERSE
default y
---help---
Enable this option if you have IR with RC-5 protocol, and
if the IR is decoded in software
config IR_RC6_DECODER
tristate "Enable IR raw decoder for the RC6 protocol"
depends on IR_CORE
select BITREVERSE
default y
---help---
Enable this option if you have an infrared remote control which
uses the RC6 protocol, and you need software decoding support.
config IR_JVC_DECODER
tristate "Enable IR raw decoder for the JVC protocol"
depends on IR_CORE
select BITREVERSE
default y
---help---
Enable this option if you have an infrared remote control which
uses the JVC protocol, and you need software decoding support.
config IR_SONY_DECODER
tristate "Enable IR raw decoder for the Sony protocol"
depends on IR_CORE
default y
---help---
Enable this option if you have an infrared remote control which
uses the Sony protocol, and you need software decoding support.
config IR_RC5_SZ_DECODER
tristate "Enable IR raw decoder for the RC-5 (streamzap) protocol"
depends on IR_CORE
select BITREVERSE
default y
---help---
Enable this option if you have IR with RC-5 (streamzap) protocol,
and if the IR is decoded in software. (The Streamzap PC Remote
uses an IR protocol that is almost standard RC-5, but not quite,
as it uses an additional bit).
config IR_LIRC_CODEC
tristate "Enable IR to LIRC bridge"
depends on IR_CORE
depends on LIRC
default y
---help---
Enable this option to pass raw IR to and from userspace via
the LIRC interface.
config IR_IMON
tristate "SoundGraph iMON Receiver and Display"
depends on USB_ARCH_HAS_HCD
depends on IR_CORE
select USB
---help---
Say Y here if you want to use a SoundGraph iMON (aka Antec Veris)
IR Receiver and/or LCD/VFD/VGA display.
To compile this driver as a module, choose M here: the
module will be called imon.
config IR_MCEUSB
tristate "Windows Media Center Ed. eHome Infrared Transceiver"
depends on USB_ARCH_HAS_HCD
depends on IR_CORE
select USB
---help---
Say Y here if you want to use a Windows Media Center Edition
eHome Infrared Transceiver.
To compile this driver as a module, choose M here: the
module will be called mceusb.
config IR_ENE
tristate "ENE eHome Receiver/Transciever (pnp id: ENE0100/ENE02xxx)"
depends on PNP
depends on IR_CORE
---help---
Say Y here to enable support for integrated infrared receiver
/transciever made by ENE.
You can see if you have it by looking at lspnp output.
Output should include ENE0100 ENE0200 or something similiar.
To compile this driver as a module, choose M here: the
module will be called ene_ir.
config IR_STREAMZAP
tristate "Streamzap PC Remote IR Receiver"
depends on USB_ARCH_HAS_HCD
depends on IR_CORE
select USB
---help---
Say Y here if you want to use a Streamzap PC Remote
Infrared Receiver.
To compile this driver as a module, choose M here: the
module will be called streamzap.
endif #IR_CORE