Date: Fri, 5 Sep 1997 18:53:17 +0200 (MET DST) From: Luigi Rizzo <luigi@labinfo.iet.unipi.it> To: grady@scam.XCF.Berkeley.EDU Cc: multimedia@freebsd.org Subject: speed setting problem with SB16 on snd970904.tgz Message-ID: <199709051653.SAA12295@labinfo.iet.unipi.it> In-Reply-To: <199709051647.SAA12275@labinfo.iet.unipi.it> from "grady@scam.XCF.Berkeley.EDU" at Sep 5, 97 10:42:12 am
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A problem in setting speed on SB16 cards was reported. The fix
for the SB16 is the following: in sb_dsp.c, function dsp_speed(),
add the following lines
static int
dsp_speed(snddev_info *d)
{
u_char tconst;
u_long flags;
int max_speed = 44100, speed = d->speed ;
+ if (d->bd_flags & BD_F_SB16) {
+ RANGE (speed, 5000, 45000);
+ d->speed = speed ;
+ sb_cmd(d->io_base, 0x41);
+ sb_cmd(d->io_base, d->speed >> 8 );
+ sb_cmd(d->io_base, d->speed & 0xff );
+ sb_cmd(d->io_base, 0x42);
+ sb_cmd(d->io_base, d->speed >> 8 );
+ sb_cmd(d->io_base, d->speed & 0xff );
+ return speed ;
+ }
/*
* only some models can do stereo, and only if not
* simultaneously using midi.
At this point I am not sure if changing speed works on the SB3.X
-- if someone wwants to test... I don't have this card at the
moment.
Cheers
Luigi
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