mirror of
https://github.com/KolibriOS/kolibrios.git
synced 2024-12-17 04:12:34 +03:00
72 lines
4.2 KiB
Plaintext
72 lines
4.2 KiB
Plaintext
|
Nable 21.05.2008.
|
||
|
|
This driver is my contribution (or donation) to KolibriOS. This is provided
|
||
|
|
AS IS in hope it'll be useful, but WITHOUT ANY WARRANTY! No responcibility
|
||
|
|
for any hardware damage or data loss. Use at your own risk!
|
||
|
|
|
||
|
|
;-------------------------------------------------------------------------------
|
||
|
|
;Changelog:
|
||
|
|
;-------------------------------------------------------------------------------
|
||
|
|
v0.2 - DEV_SET(GET)_MASTERVOL functions are unlocked and implemented.
|
||
|
|
|
||
|
|
v0.1 - first release.
|
||
|
|
|
||
|
|
;-------------------------------------------------------------------------------
|
||
|
|
;Tiny FAQ for sound driver by Nable for SB16 sound card.
|
||
|
|
;-------------------------------------------------------------------------------
|
||
|
|
|
||
|
|
;What is it?--------------------------------------------------------------------
|
||
|
|
As you may know there is a sound subsystem ('INFINITY') in KolibriOS.
|
||
|
|
This subsystem includes mixer and separate interface for soundplayer
|
||
|
|
program and driver, so player application don't need to know what soundcard
|
||
|
|
is installed and how to cope with it, all work with card do the driver.
|
||
|
|
Before this time there were drivers only for AC97 integrated sound, but I
|
||
|
|
don't have such at home and if I would upgrade my computer with a newest
|
||
|
|
hardware, with 100% probability integrated sound will be HD Codec, nowadays
|
||
|
|
AC97 is not actual (2008 year is at calendar). But I'm not planning to upgrade
|
||
|
|
my computer so much now (and in next 5-6 years), writing the driver for my PCI
|
||
|
|
ESS Maestro1 card is difficult for me (may be some time later), so I decided
|
||
|
|
to write a driver for SB16. At first it is easy, there are many working
|
||
|
|
examples for DOS, there are heaps of good documentation and as an ISA device
|
||
|
|
SB16 can be programmed through I/O ports (about 5 ports are used), that is
|
||
|
|
more easy than PCI access. Now, enough lirics, lets go to physics :-)
|
||
|
|
If you still don't understand what stuff is it, I'll tell this in brief:
|
||
|
|
with this driver you can play MP3 and WAV music (using AC97SND player) and
|
||
|
|
sounds (some games and DOSBOX can produce sound output through sound
|
||
|
|
subsystem) in KolibriOS.
|
||
|
|
|
||
|
|
;Yeah! I need sound in Kolibri and I have SB16 card. Whats then?----------------
|
||
|
|
At first copy my SOUND.OBJ to /sys/drivers at your Kolibri system. Note,
|
||
|
|
that if you have AC97 card and it's driver started - then new driver won't
|
||
|
|
run until reboot. Then run BOARD and go to 'user' tab. Then try to run
|
||
|
|
AC97SND player. At BOARD you will see the following (if you had a proper
|
||
|
|
card):
|
||
|
|
|----------------------------|
|
||
|
|
|detecting hardware... | <- detector startup message
|
||
|
|
|DSP found at port 220h | <- if you have a proper card, it'll be
|
||
|
|
|DSP version 4.13 - SB16 | autodetected. Numbers may be different.
|
||
|
|
|failed to attach IRQ5 | <- don't mention. Old kernels reserve IRQ5
|
||
|
|
|owner's handler: 0x80D74284 | see below how to fix it.
|
||
|
|
|----------------------------|
|
||
|
|
At first, note that DSP version must be 4.xx or higher. Older cards are not
|
||
|
|
supported in this first release, maybe some time later. If nothing detected
|
||
|
|
but PNP/BIOS or some other OS detects your card - I'm sorry, it's perverted
|
||
|
|
PNP card like OPTi16, that is like HD Codec - until you init it through
|
||
|
|
PCI->ISA bridge (HD Codec of course through PCI->PCI bridge), map it, etc,
|
||
|
|
you can't use it in any way. I'd rather write a PCI device driver, than
|
||
|
|
for this extreme perversion. If your card detected and has a proper version
|
||
|
|
but you see 'failed to attach IRQ' - delete stroke 'mov [irq_owner+4*5],1' from the
|
||
|
|
file kernel.asm of your kernel source, save it, rebuild kernel, copy new
|
||
|
|
kernel to /sys/ (did you rename 'kernel' to 'kernel.mnt'? You should do it),
|
||
|
|
restart kernel (Ctrl+Alt+F12, Home). THE EASIER WAY IS TO USE A NEWER KERNEL,
|
||
|
|
since SVN802 it's fixed.
|
||
|
|
Now everything should be OK.
|
||
|
|
|
||
|
|
;It works for a part of the second and then stops, but system doesn't hang------
|
||
|
|
Go to 'config.inc' of my driver and change 'sb_irq_num' value from 5 to 7.
|
||
|
|
Then save, rebuild driver (compile 'sound.asm'), put 'sound' to /sys/drivers/
|
||
|
|
(you need to rename file 'sound' to 'sound.obj'), restart kernel and try again
|
||
|
|
to produce sound.
|
||
|
|
|
||
|
|
;-------------------------------------------------------------------------------
|
||
|
|
Ask your questions at KolibriOS forum: board.kolibrios.org
|
||
|
|
I'll try to answer you if possible.
|