Module Name: src
Committed By: isaki
Date: Sat Mar 26 06:43:36 UTC 2022
Modified Files:
src/sys/dev/audio: audio.c
Log Message:
Improve comments.
To generate a diff of this commit:
cvs rdiff -u -r1.118 -r1.119 src/sys/dev/audio/audio.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/dev/audio/audio.c
diff -u src/sys/dev/audio/audio.c:1.118 src/sys/dev/audio/audio.c:1.119
--- src/sys/dev/audio/audio.c:1.118 Sat Mar 26 06:41:12 2022
+++ src/sys/dev/audio/audio.c Sat Mar 26 06:43:36 2022
@@ -1,4 +1,4 @@
-/* $NetBSD: audio.c,v 1.118 2022/03/26 06:41:12 isaki Exp $ */
+/* $NetBSD: audio.c,v 1.119 2022/03/26 06:43:36 isaki Exp $ */
/*-
* Copyright (c) 2008 The NetBSD Foundation, Inc.
@@ -138,7 +138,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: audio.c,v 1.118 2022/03/26 06:41:12 isaki Exp $");
+__KERNEL_RCSID(0, "$NetBSD: audio.c,v 1.119 2022/03/26 06:43:36 isaki Exp $");
#ifdef _KERNEL_OPT
#include "audio.h"
@@ -2767,7 +2767,7 @@ audio_read(struct audio_softc *sc, struc
audio_track_record(track);
}
- /* uiomove from usrbuf as much as possible. */
+ /* uiomove from usrbuf as many bytes as possible. */
bytes = uimin(usrbuf->used, uio->uio_resid);
while (bytes > 0) {
int head = usrbuf->head;
@@ -2896,7 +2896,7 @@ audio_write(struct audio_softc *sc, stru
audio_track_lock_enter(track);
- /* uiomove to usrbuf as much as possible. */
+ /* uiomove to usrbuf as many bytes as possible. */
bytes = uimin(track->usrbuf_usedhigh - usrbuf->used,
uio->uio_resid);
while (bytes > 0) {
@@ -2919,7 +2919,7 @@ audio_write(struct audio_softc *sc, stru
bytes -= len;
}
- /* Convert them as much as possible. */
+ /* Convert them as many blocks as possible. */
while (usrbuf->used >= track->usrbuf_blksize &&
outbuf->used < outbuf->capacity) {
audio_track_play(track);
@@ -5905,7 +5905,10 @@ audio_rmixer_process(struct audio_softc
continue;
}
- /* If the track buffer is full, discard the oldest one? */
+ /*
+ * If the track buffer has less than one block of free space,
+ * make one block free.
+ */
input = track->input;
if (input->capacity - input->used < mixer->frames_per_block) {
int drops = mixer->frames_per_block -
