Messages in this thread | | | Date | Mon, 03 Jun 2002 20:47:53 +0200 | From | Gerald Teschl <> | Subject | Re: isapnp problems with opl3sa2 |
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Zwane Mwaikambo wrote:
>You should be able to load it without any parameters with ISAPNP, i have a >box at home with that card which only requires a modprobe opl3sa2. Could >you show me how you're loading it as well as dmesg and /proc/isapnp output >after loading. > I use redhat-7.3 (kernel-2.4.18-4) and this is an ASUS L7300 laptop. In /etc/modules.conf I have
alias sound-slot-0 opl3sa2 options sound dmabuf=1 alias synth0 opl3 options opl3 io=0x388 options opl3sa2 ymode=2 isapnp=1
and /proc/isapnp looks like ------------------------------------------------- Card 1 'YMH0800:YAMAHA OPL3-SAx Audio System' PnP version 1.0 Logical device 0 'YMH0021:Unknown' Device is not active Active DMA 0,0 Resources 0 Priority preferred Port 0x220-0x220, align 0xf, size 0x10, 16-bit address decoding Port 0x530-0x530, align 0x7, size 0x8, 16-bit address decoding Port 0x388-0x388, align 0x7, size 0x8, 16-bit address decoding Port 0x330-0x330, align 0x1, size 0x2, 16-bit address decoding Port 0x370-0x370, align 0x1, size 0x2, 16-bit address decoding IRQ 5 High-Edge DMA 0 8-bit byte-count type-A DMA 1 8-bit byte-count type-A Alternate resources 0:1 ........... --------------------------------------------- before inserting the module. If I insert the (original) module using "modporbe opl3sa2" dmesg read:
ad1848/cs4248 codec driver Copyright (C) by Hannu Savolainen 1993-1996 ad1848: No ISAPnP cards found, trying standard ones... opl3sa2: ISA PnP activate failed opl3sa2: No PnP cards found opl3sa2: 0 PnP card(s) found.
and /proc/isapnp looks as before. My investigations showed that the error occures in isapnp_valid_dma() invoked from isapnp_config_activate() in isapnp.c.
If I insert my patched module I get
opl3sa2: Activated ISA PnP card 0 (active=1) opl3sa2: chipset version = 0x4 opl3sa2: Found OPL3-SA3 (YMF715E or YMF719E) ad1848: Interrupt test failed (IRQ5) opl3sa2: 1 PnP card(s) found.
and /proc/isapnp looks like ------------------------------------------- Card 1 'YMH0800:YAMAHA OPL3-SAx Audio System' PnP version 1.0 Logical device 0 'YMH0021:Unknown' Device is active Active port 0x220,0x530,0x388,0x330,0x370 Active IRQ 5 [0x2] Active DMA 0,1 Resources 0 ................. -------------------------------------------
> > >>A few further remarks concerning my patch: >>*) The patch also adds a line "opl3sa2_state[card].activated = 1" which >>is an obvious omission in the original driver. >> > >Thanks, put it right at the end before the return and i'll be happy. > Yes, you are right, probably more readable.
> > >>*) I have to force the driver to use both dma=0 and dma2=1. From what I >>understand dma=0 should be sufficient, but this will not work. Looks like >>a bug in isapnp.c to me. However, this should do no harm since according >>to /proc/isapnp, the card only offers these values anyway. >> > >isapnp.c is fine > I still think this might affect other hardware as well. Does your card use the same irq/prot/dma settings? Does your /proc/isapnp look the same as mine? I don't quite understand why it works for you.
>When you rediff, can you diff so that the patch can be applied with a >strip of '1' ie diff -u linux/drivers... > No problem.
Thanks for your help!
Gerald
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