[tlinux-users:07708] Re: Infrarred and remote control

G'day everybody.

Just an update on my progress with the remote control for those few who
are interested...

I downloaded the tarball of lirc 0.8.0 and compiled it for IRDA
compliant remotes. I figured that since my P20 has the smsc superio chip
and it's IRDA compliant, that's what I should choose. So after
./setup.sh, make, sudo make install, I had kernel modules lirc_dev.ko
and lirc_sir.ko in my lib/modules/...

Brief note: I had to prepare for the above by make menuconfig in my
linux kernel source tree, load config file from /boot/config-,
exit/save...and make oldconfig just to be sure, as I was using a distro
kernel image (Ubuntu Breezy 5.10, kernel 2.6.12-10-686). I also had to
install pciutils-dev (the absence of which was why it failed to compile
the first time around, could not find pci/pci.h).

Not convinced my BIOS initialises the smsc superio chip properly, I
downloaded smcinit-0.4.1. ./configure, make, sudo make install. smcinit
would not work for me. I edited smcinit.c to make the defaults match the
P20 requirements. I found these from the dmesg output based on initially
loading the smsc_ircc2 kernel module, which contains smcinit. It told me
DMA=1, not DMA=3 (which is on the smcinit web page), and somewhere I
read this is because DMA 3 is allocated to the Atheros 802.11a/b/g chip.
smcinit then complained that the LPC bridge was not an 82801CAM. So I
spent some time trawling through Intel chipset doco, and found that the
registers for the ICH5 and ICH3-m are identical, so I changed smcinit.c
to allow for the ICH5 too.

$ sudo smcinit -v
smcinit 0.4

Default-Values for Satellite P20:
SIR ioport: 0x2f8
FIR ioport: 0x6f8
FIR interupt: 3
FIR DMA: 1

Detected IO hub vendor id: 0x8086
Detected IO hub device id: 0x24d0
Detected Chip id: 0x5a

SIR ioport register      write: 0xbe     read: 0xbe
FIR interrupt register   write: 0x3      read: 0x3
FIR ioport register      write: 0xdf     read: 0xdf
FIR dma register         write: 0x1      read: 0x1

Initialisation of the SMC 47Nxxx succeded

$ sudo modprobe lirc_sir debug=1
$ dmesg

[snip]

[4332356.183000] lirc_dev: IR Remote Control driver registered, at major 61
[4332356.190000] lirc_dev: lirc_register_plugin: sample_rate: 0
[4332356.204000] lirc_sir: I/O port 0x02f8, IRQ 3.
[4332356.204000] lirc_sir: Installed.

$ sudo mode2 -d /dev/lirc0
space 16777176
pulse 9000
space 4493
pulse 593
space 1653
pulse 592
space 1654
pulse 593

[snip]



Cheers,
Paul.



Manuel López-Ibáñez wrote:

> Hi ursus and others,
>
> Could you elaborate on which hardware and software configuration are
> you using to achieve remote control of the laptop? Please, provide
> versions of kernel, kernel modules and software and any parameters
> that may be involved (even if you do not provided). Don't need to post
> any configuration file that may exist in my distribution.
>
> Cheers,
>     Manuel.
>
> x wrote:
>
>> Paul--
>> --- Paul Koufalas <[email protected]> wrote:
>>
>>
>>> G'day all.
>>>
>>> Was there any conclusion to how to make use of the infrared and
>>> remote
>>> control? (see below)
>>
>>
>>
>> 1. xmms with lirc-plugin works ok (kind of cool to see the
>> volume-slider
>>    move from RC).
>> 2. Couldn't get mplayer or vlc going. don't know, if they need a plugin
>>    or need to be compiled especially with lirc-support, using
>> binaries    from videolan.org resp. linuxpackages.net.
>> 3. Got last MoviX2 and remastered the CD, editing some cfg-files for
>>    my TV-remote and second attempt worked, so if u have trouble for
>>    testing I'd recommend trying MoviX2, as it's pretty "lirc-ready",
>>    though it doesn't have all the lirc cfg- & testing tools included.
>>    If u find an existing cfg-file for specific RC it's sure easier.
>>
>> HTH & HAND
>>
>> ursus
>>
>>
>>     
>>
>>     
>>        
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>
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