[src/trunk]: src/sys/dev/pad Use defines to specify pad audio format. NFCI.

[nat <nat%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/546c655a49c3
branches:  trunk
changeset: 824827:546c655a49c3
user:      nat <nat%NetBSD.org@localhost>
date:      Mon Jun 19 23:54:00 2017 +0000

description:
Use defines to specify pad audio format.  NFCI.

Ok christos@.

diffstat:

 sys/dev/pad/pad.c |  17 +++++++++++------
 1 files changed, 11 insertions(+), 6 deletions(-)

diffs (52 lines):

diff -r f667958f7262 -r 546c655a49c3 sys/dev/pad/pad.c
--- a/sys/dev/pad/pad.c Mon Jun 19 23:08:05 2017 +0000
+++ b/sys/dev/pad/pad.c Mon Jun 19 23:54:00 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: pad.c,v 1.36 2017/06/06 07:32:41 nat Exp $ */
+/* $NetBSD: pad.c,v 1.37 2017/06/19 23:54:00 nat Exp $ */
 
 /*-
  * Copyright (c) 2007 Jared D. McNeill <jmcneill%invisible.ca@localhost>
@@ -27,7 +27,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: pad.c,v 1.36 2017/06/06 07:32:41 nat Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pad.c,v 1.37 2017/06/19 23:54:00 nat Exp $");
 
 #include <sys/types.h>
 #include <sys/param.h>
@@ -54,6 +54,11 @@
 
 #define PADUNIT(x)     minor(x)
 
+#define PADFREQ                44100
+#define PADCHAN                2
+#define PADPREC                16
+#define PADENC         AUDIO_ENCODING_SLINEAR_LE
+
 extern struct cfdriver pad_cd;
 
 typedef struct pad_block {
@@ -120,8 +125,8 @@
 
 #define PAD_NFORMATS   1
 static const struct audio_format pad_formats[PAD_NFORMATS] = {
-       { NULL, AUMODE_PLAY|AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_LE, 16, 16,
-         2, AUFMT_STEREO, 1, { 44100 } },
+       { NULL, AUMODE_PLAY|AUMODE_RECORD, PADENC, PADPREC, PADPREC,
+         PADCHAN, AUFMT_STEREO, 1, { PADFREQ } },
 };
 
 extern void    padattach(int);
@@ -339,8 +344,8 @@
        return 0;
 }
 
-#define PAD_BYTES_PER_SEC   (44100 * sizeof(int16_t) * 2)
-#define BYTESTOSLEEP       (int64_t)(PAD_BLKSIZE)
+#define PAD_BYTES_PER_SEC   (PADFREQ * PADPREC / NBBY * PADCHAN)
+#define BYTESTOSLEEP       (int64_t)(PAD_BLKSIZE)
 #define TIMENEXTREAD       (int64_t)(BYTESTOSLEEP * 1000000 / PAD_BYTES_PER_SEC)
 
 int