misc/47029: Static and popping with Hercules GameTheatre XP

[Anish Mistry]

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Patch to fix problem.  The external amp in the breakout box needs to be turned 
on.  I was only able to test on 4.9-RELEASE since I can't afford to loose 
this machine to -CURRENT.
Also attached.

- --- sys/dev/sound/pci/csapcm.c.orig     Fri Dec 20 23:01:39 2002
+++ sys/dev/sound/pci/csapcm.c  Fri Oct 31 00:59:26 2003
@@ -648,6 +648,13 @@
        /* Crank up the power on the DAC and ADC. */
        csa_setplaysamplerate(resp, 8000);
        csa_setcapturesamplerate(resp, 8000);
+       /* Hercules Game Theatre XP needs the external amp turned on! */
+       /* Set defaults */
+       csa_writeio(resp, BA0_EGPIODR, EGPIODR_GPOE0);
+       csa_writeio(resp, BA0_EGPIOPTR, EGPIOPTR_GPPT0);
+       /* Power up amplifier */
+       csa_writeio(resp, BA0_EGPIODR, csa_readio(resp, BA0_EGPIODR) | 
EGPIODR_GPOE2);
+       csa_writeio(resp, BA0_EGPIOPTR, csa_readio(resp, BA0_EGPIOPTR) | 
EGPIOPTR_GPPT2);
 
        return 0;
 }

- -- 
Anish Mistry
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