>Number:         330
>Category:       port-i386
>Synopsis:       sbreg.h does not DTRT with SoundBlaster Pro
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    gnats-admin (GNATS administrator)
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Jul  7 14:05:09 1994
>Originator:     Jason R. Thorpe
>Organization:
	Oregon State University
	Department of Computer Science
>Release:        NetBSD 0.9C (Jul 5 source)
>Environment:
	
System: NetBSD yuri 0.9C NetBSD 0.9C (YURI) #1: Thu Jul 7 13:04:05 PDT 1994 thorpej@yuri:/tmp_mnt/hurricane/NetBSD/src/sys/arch/i386/compile/YURI i386


>Description:
	The macro to check for valid IRQs on the SoundBlaster does not
	check for the right ones on a SoundBlaster Pro.  This does not 
	manifest itself unless you're running out of IRQs and need to use
	one that's not supported by the current driver.
>How-To-Repeat:
	Put your SoundBlaster Pro on IRQ 10 and watch your kernel tell
	you that IRQ 10 is invalid.
>Fix:
	I have used the following patch to /sys/arch/i386/isa/sbreg.h
	for close to 4 months now...I've just finally gotten around to
	doing the send-pr :-)

	This particular patch is based on the following version of
	sbreg.h:

	$Id: sbreg.h,v 1.2 1994/03/29 04:36:28 mycroft Exp $

	NOTE: The patch requires that you put the following in your
	kernel config file:

	options		SBPRO

*** distribution/sbreg.h	Mon Jun 20 22:41:22 1994
--- sbreg.h	Mon Jun 20 22:41:41 1994
***************
*** 139,146 ****
--- 139,151 ----
  /*
   * Macros to detect valid hardware configuration data.
   */
+ #ifdef	SBPRO
+ #define	SB_IRQ_VALID(mask)  ((mask) & 0x04a4)	/* IRQ 2,5,7,10 */
+ #define	SB_DRQ_VALID(chan)  (((chan) == 0) || ((chan) == 1) || ((chan) == 3))
+ #else	/* ! SBPRO */
  #define SB_IRQ_VALID(mask)  ((mask) & 0x00ac)	/* IRQ 2,3,5,7 */
  #define SB_DRQ_VALID(chan)  ((chan) == 1)
+ #endif	/* SBPRO */
  #define SB_BASE_VALID(base) ((base) == 0x220 || (base) == 0x240)
  
  #define SB_INPUT_RATE	0
>Audit-Trail:
>Unformatted:


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