| 0,0 → 1,72 |
|---|
| 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. |