Messages in this thread |  | | | Date | Fri, 01 Nov 2002 14:44:25 +0100 | | From | Takashi Iwai <> | | Subject | Re: [PATCHSET 22/25] add support for PC-9800 architecture (sound alsa) |
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At Fri, 1 Nov 2002 22:02:18 +0900, Osamu Tomita wrote: > > 2002.10.31 02:52, Takashi Iwai wrote: > > At Wed, 30 Oct 2002 02:43:22 +0900, > (snip) > > do you mean that the interrupts are generated too slowly? > > you can measure how many UART interrupts are generated per second by > > checking /proc/interrupts. > > if it's too little, the problem is likely in the hardware > > initialization part, which i simply copied from your patch. > > but it could be a wrong copy & paste. > > please check pc98_mpu401_init() in pc98.c. > > > > btw, which MPU mode are you using, PC98II or normal MPU401? > Thanks! Problem solved. MPU401 works fine by trivial fix as follows. > > #--- linux/sound/isa/cs423x/pc98.c.old Wed Oct 30 00:20:35 2002 > #+++ linux/sound/isa/cs423x/pc98.c Fri Nov 1 20:45:31 2002 > #@@ -379,7 +379,7 @@ > # err = pc98_mpu401_init(mpu_irq[dev]); > # if (! err) { > # err = snd_mpu401_uart_new(card, 0, > #- pc98ii ? > MPU401_HW_PC98II : MPU401_HW_MPU401, > #+ pc98ii[dev] ? > MPU401_HW_PC98II : MPU401_HW_MPU401, > # mpu_port[dev], 0, > # mpu_irq[dev], > SA_INTERRUPT, NULL); > # if (err < 0)
d'oh. thanks.
> > Now, PCM OPL3 and MPU401 all works fine. > Would you please add option "pc98ii" into snd-mpu401? > This is for Box that has MPU-PC98II only, with no other sound card.
well, then i misunderstood the hardware configuration on PC98.
doesn't MPU-PC98II need any specific hardware init code like in pc98_mpu401_init()?
if yes, then we should create another module for PC98II rather than including a magical init code into a generic mpu401 module.
ciao,
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