From 9bbe457704b3dd1932dbaf155bc4c5cd3923795b Mon Sep 17 00:00:00 2001
From: swallace <swallace@FreeBSD.org>
Date: Sat, 18 Mar 1995 20:01:10 +0000
Subject: Add back SNDCTL_DSP_SETBLKSIZE ioctl code that got zapped.

Submitted by:	Jim Lowe <james@miller.cs.uwm.edu>
---
 sys/i386/isa/sound/dmabuf.c | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/sys/i386/isa/sound/dmabuf.c b/sys/i386/isa/sound/dmabuf.c
index e75ac12..ee7e136 100644
--- a/sys/i386/isa/sound/dmabuf.c
+++ b/sys/i386/isa/sound/dmabuf.c
@@ -25,7 +25,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- * $Id: dmabuf.c,v 1.11 1995/02/13 22:49:04 jkh Exp $
+ * $Id: dmabuf.c,v 1.13 1995/03/05 08:10:23 jkh Exp $
  */
 
 #include "sound_config.h"
@@ -434,6 +434,20 @@ DMAbuf_ioctl (int dev, unsigned int cmd, unsigned int arg, int local)
       return IOCTL_OUT (arg, dmap->fragment_size);
       break;
 
+    case SNDCTL_DSP_SETBLKSIZE:
+      { 
+        int     size = IOCTL_IN (arg);
+
+        if(!(dmap->flags & DMA_ALLOC_DONE) && size)
+          {
+             dmap->fragment_size = size;
+             return 0;
+          }
+        else
+          return RET_ERROR (EINVAL);    /* Too late to change */
+      }
+      break;
+
     case SNDCTL_DSP_SUBDIVIDE:
       {
 	int             fact = IOCTL_IN (arg);
-- 
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