[src/trunk]: src/usr.bin/fstat Support audio descriptor for fstat(1).

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

details:   https://anonhg.NetBSD.org/src/rev/f728aa3e5999
branches:  trunk
changeset: 976115:f728aa3e5999
user:      isaki <isaki%NetBSD.org@localhost>
date:      Sun Sep 13 04:14:48 2020 +0000

description:
Support audio descriptor for fstat(1).
sys/dev/audio/*.h: export only what we need for fstat.

diffstat:

 sys/dev/audio/audio_if.h |   6 ++++-
 sys/dev/audio/audiodef.h |  15 +++++++++++--
 usr.bin/fstat/misc.c     |  50 ++++++++++++++++++++++++++++++++++++++++++++---
 3 files changed, 63 insertions(+), 8 deletions(-)

diffs (167 lines):

diff -r 2df3b1665e8b -r f728aa3e5999 sys/dev/audio/audio_if.h
--- a/sys/dev/audio/audio_if.h  Sun Sep 13 03:43:16 2020 +0000
+++ b/sys/dev/audio/audio_if.h  Sun Sep 13 04:14:48 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: audio_if.h,v 1.2 2019/05/08 13:40:17 isaki Exp $       */
+/*     $NetBSD: audio_if.h,v 1.3 2020/09/13 04:14:48 isaki Exp $       */
 
 /*
  * Copyright (c) 1994 Havard Eidnes.
@@ -57,6 +57,8 @@
 
 struct audio_softc;
 
+#if defined(_KERNEL)
+
 /**
  * audio stream format
  */
@@ -154,6 +156,8 @@
        const audio_params_t *);
 extern const char *audio_encoding_name(int);
 
+#endif /* _KERNEL */
+
 /* Device identity flags */
 #define SOUND_DEVICE           0
 #define AUDIO_DEVICE           0x80
diff -r 2df3b1665e8b -r f728aa3e5999 sys/dev/audio/audiodef.h
--- a/sys/dev/audio/audiodef.h  Sun Sep 13 03:43:16 2020 +0000
+++ b/sys/dev/audio/audiodef.h  Sun Sep 13 04:14:48 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: audiodef.h,v 1.14 2020/04/29 03:58:27 isaki Exp $      */
+/*     $NetBSD: audiodef.h,v 1.15 2020/09/13 04:14:48 isaki Exp $      */
 
 /*
  * Copyright (C) 2017 Tetsuya Isaki. All rights reserved.
@@ -78,6 +78,8 @@
 #define AUDIO_SCALEDOWN(value, bits)   ((value) / (1 << (bits)))
 #endif
 
+#if defined(_KERNEL)
+
 /* conversion stage */
 typedef struct {
        audio_ring_t srcbuf;
@@ -92,7 +94,7 @@
        AUDIO_STATE_DRAINING,   /* now draining */
 } audio_state_t;
 
-typedef struct audio_track {
+struct audio_track {
        /*
         * AUMODE_PLAY for playback track, or
         * AUMODE_RECORD for recoding track.
@@ -167,7 +169,10 @@
        volatile uint   lock;
 
        int             id;             /* track id for debug */
-} audio_track_t;
+};
+#endif /* _KERNEL */
+
+typedef struct audio_track audio_track_t;
 
 struct audio_file {
        struct audio_softc *sc;
@@ -197,6 +202,8 @@
        SLIST_ENTRY(audio_file) entry;
 };
 
+#if defined(_KERNEL)
+
 struct audio_trackmixer {
        struct audio_softc *sc;
 
@@ -439,4 +446,6 @@
        }
 }
 
+#endif /* _KERNEL */
+
 #endif /* !_SYS_DEV_AUDIO_AUDIODEF_H_ */
diff -r 2df3b1665e8b -r f728aa3e5999 usr.bin/fstat/misc.c
--- a/usr.bin/fstat/misc.c      Sun Sep 13 03:43:16 2020 +0000
+++ b/usr.bin/fstat/misc.c      Sun Sep 13 04:14:48 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: misc.c,v 1.23 2020/05/02 18:42:30 christos Exp $       */
+/*     $NetBSD: misc.c,v 1.24 2020/09/13 04:14:48 isaki Exp $  */
 
 /*-
  * Copyright (c) 2008 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__RCSID("$NetBSD: misc.c,v 1.23 2020/05/02 18:42:30 christos Exp $");
+__RCSID("$NetBSD: misc.c,v 1.24 2020/09/13 04:14:48 isaki Exp $");
 
 #include <stdbool.h>
 #include <sys/param.h>
@@ -60,6 +60,9 @@
 
 #include <net/bpfdesc.h>
 
+#include <dev/audio/audiodef.h>
+#include <dev/audio/audio_if.h>
+
 #include <err.h>
 #include <util.h>
 #include <string.h>
@@ -220,6 +223,46 @@
        return 0;
 }
 
+static int
+p_audio(struct file *f)
+{
+       struct audio_file af;
+       const char *devname;
+       const char *modename;
+
+       if (!KVM_READ(f->f_data, &af, sizeof(af))) {
+               dprintf("can't read audio_file at %p for pid %d",
+                   f->f_data, Pid);
+               return 0;
+       }
+
+       if (ISDEVAUDIO(af.dev)) {
+               devname = "audio";
+       } else if (ISDEVSOUND(af.dev)) {
+               devname = "sound";
+       } else if (ISDEVAUDIOCTL(af.dev)) {
+               devname = "audioctl";
+       } else if (ISDEVMIXER(af.dev)) {
+               devname = "mixer";
+       } else {
+               devname = "???";
+       }
+
+       if (af.ptrack && af.rtrack) {
+               modename = "playback, record";
+       } else if (af.ptrack) {
+               modename = "playback";
+       } else if (af.rtrack) {
+               modename = "record";
+       } else {
+               modename = "-";
+       }
+
+       (void)printf("* audio@%s%d %s", devname, AUDIOUNIT(af.dev), modename);
+       oprint(f, "\n");
+       return 0;
+}
+
 int
 pmisc(struct file *f, const char *name)
 {
@@ -263,8 +306,7 @@
                printf("* crypto %p", f->f_data);
                break;
        case NL_AUDIO:
-               printf("* audio %p", f->f_data);
-               break;
+               return p_audio(f);
        case NL_PAD:
                printf("* pad %p", f->f_data);
                break;