diff options
Diffstat (limited to 'sys/dev/audio.c')
| -rw-r--r-- | sys/dev/audio.c | 45 |
1 files changed, 43 insertions, 2 deletions
diff --git a/sys/dev/audio.c b/sys/dev/audio.c index 80af5a51a97..82c4fb09693 100644 --- a/sys/dev/audio.c +++ b/sys/dev/audio.c @@ -1,4 +1,4 @@ -/* $OpenBSD: audio.c,v 1.80 2007/09/24 19:45:03 ratchov Exp $ */ +/* $OpenBSD: audio.c,v 1.81 2007/10/03 21:49:13 jakemsr Exp $ */ /* $NetBSD: audio.c,v 1.119 1999/11/09 16:50:47 augustss Exp $ */ /* @@ -104,7 +104,7 @@ int audio_blk_ms = AUDIO_BLK_MS; int audiosetinfo(struct audio_softc *, struct audio_info *); int audiogetinfo(struct audio_softc *, struct audio_info *); - +int audiogetbufinfo(struct audio_softc *, struct audio_bufinfo *, int); int audio_open(dev_t, struct audio_softc *, int, int, struct proc *); int audio_close(dev_t, int, int, struct proc *); int audio_read(dev_t, struct uio *, int); @@ -1729,6 +1729,18 @@ audio_ioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p) *(int *)addr = hw->get_props(sc->hw_hdl); break; + case AUDIO_GETPRINFO: + DPRINTF(("AUDIO_GETPRINFO\n")); + error = audiogetbufinfo(sc, (struct audio_bufinfo *)addr, + AUMODE_PLAY); + break; + + case AUDIO_GETRRINFO: + DPRINTF(("AUDIO_GETRRINFO\n")); + error = audiogetbufinfo(sc, (struct audio_bufinfo *)addr, + AUMODE_RECORD); + break; + default: DPRINTF(("audio_ioctl: unknown ioctl\n")); error = ENOTTY; @@ -2924,6 +2936,35 @@ audiogetinfo(struct audio_softc *sc, struct audio_info *ai) return (0); } +int +audiogetbufinfo(struct audio_softc *sc, struct audio_bufinfo *info, int mode) +{ + struct audio_ringbuffer *buf; + int factor; + + factor = 1; + if (mode == AUMODE_PLAY) { + buf = &sc->sc_pr; + factor = sc->sc_pparams.factor; + } else { + buf = &sc->sc_rr; + factor = sc->sc_rparams.factor; + } + + info->seek = buf->used / factor; + info->blksize = buf->blksize / factor; + if (buf->blksize != 0) { + info->hiwat = buf->usedhigh / buf->blksize; + info->lowat = buf->usedlow / buf->blksize; + } else { + info->hiwat = 0; + info->lowat = 0; + } + + return (0); +} + + /* * Mixer driver */ |