diff options
Diffstat (limited to 'sys/dev/sound/pcm/channel.h')
| -rw-r--r-- | sys/dev/sound/pcm/channel.h | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/sys/dev/sound/pcm/channel.h b/sys/dev/sound/pcm/channel.h index 64994ad..157d353 100644 --- a/sys/dev/sound/pcm/channel.h +++ b/sys/dev/sound/pcm/channel.h @@ -47,7 +47,9 @@ pcmchan_caps *chn_getcaps(pcm_channel *c); int chn_allocbuf(snd_dbuf *b, bus_dma_tag_t parent_dmat); void chn_resetbuf(pcm_channel *c); void chn_intr(pcm_channel *c); -void chn_dmaupdate(pcm_channel *c); +void chn_checkunderflow(pcm_channel *c); +int chn_wrfeed(pcm_channel *c); +int chn_rdfeed(pcm_channel *c); int chn_abort(pcm_channel *c); void buf_isadma(snd_dbuf *b, int go); @@ -60,6 +62,7 @@ extern pcm_feeder feeder_root; #define PCMDIR_REC -1 #define PCMTRIG_START 1 +#define PCMTRIG_EMLDMAWR 2 #define PCMTRIG_STOP 0 #define PCMTRIG_ABORT -1 @@ -85,6 +88,8 @@ extern pcm_feeder feeder_root; * tsleeps in chn_{read,write} at the highest sample rate. * (which is usually 48kHz * 16bit * stereo = 192000 bytes/sec) */ -#define CHN_2NDBUFBLKSIZE (12 * 1024) +#define CHN_2NDBUFBLKSIZE (2 * 1024) /* The total number of blocks per secondary buffer. */ -#define CHN_2NDBUFBLKNUM (3) +#define CHN_2NDBUFBLKNUM (8) +/* The size of a whole secondary buffer. */ +#define CHN_2NDBUFWHOLESIZE (CHN_2NDBUFBLKSIZE * CHN_2NDBUFBLKNUM) |
