diff options
| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2012-02-03 00:50:09 -0800 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-02-03 11:55:38 +0000 |
| commit | c1e6f10ea94715f00cce4c9aaf7fc91fb34ec52d (patch) | |
| tree | f965d995c0581e688818d32d8912abba9b396dee /sound/soc/sh/fsi.c | |
| parent | 9f71770b88d1dafa46d4f3c3b359d1791e23eecf (diff) | |
ASoC: fsi: reduce runtime calculation by using pre-setting
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc/sh/fsi.c')
| -rw-r--r-- | sound/soc/sh/fsi.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/sound/soc/sh/fsi.c b/sound/soc/sh/fsi.c index 3241e5bdd54b..0d78740d0a6b 100644 --- a/sound/soc/sh/fsi.c +++ b/sound/soc/sh/fsi.c @@ -167,6 +167,7 @@ struct fsi_stream { int buff_sample_pos; /* sample position of ALSA buffer */ int period_samples; /* sample number / 1 period */ int period_pos; /* current period position */ + int sample_width; /* sample width */ int uerr_num; int oerr_num; @@ -406,6 +407,7 @@ static void fsi_stream_push(struct fsi_priv *fsi, io->buff_sample_pos = 0; io->period_samples = fsi_frame2sample(fsi, runtime->period_size); io->period_pos = 0; + io->sample_width = samples_to_bytes(runtime, 1); io->oerr_num = -1; /* ignore 1st err */ io->uerr_num = -1; /* ignore 1st err */ spin_unlock_irqrestore(&master->lock, flags); @@ -431,6 +433,7 @@ static void fsi_stream_pop(struct fsi_priv *fsi, int is_play) io->buff_sample_pos = 0; io->period_samples = 0; io->period_pos = 0; + io->sample_width = 0; io->oerr_num = 0; io->uerr_num = 0; spin_unlock_irqrestore(&master->lock, flags); @@ -752,7 +755,6 @@ static int fsi_fifo_data_ctrl(struct fsi_priv *fsi, int stream) int is_play = fsi_stream_is_play(stream); struct fsi_stream *io = fsi_get_stream(fsi, is_play); int sample_residues; - int sample_width; int samples; int samples_max; int over_period; @@ -780,9 +782,6 @@ static int fsi_fifo_data_ctrl(struct fsi_priv *fsi, int stream) io->buff_sample_pos = 0; } - /* get 1 sample data width */ - sample_width = samples_to_bytes(runtime, 1); - /* get number of residue samples */ sample_residues = io->buff_sample_capa - io->buff_sample_pos; @@ -798,7 +797,7 @@ static int fsi_fifo_data_ctrl(struct fsi_priv *fsi, int stream) samples = sample_residues; - switch (sample_width) { + switch (io->sample_width) { case 2: fn = fsi_dma_soft_push16; break; @@ -818,7 +817,7 @@ static int fsi_fifo_data_ctrl(struct fsi_priv *fsi, int stream) samples_max = sample_residues; samples = fsi_get_current_fifo_samples(fsi, is_play); - switch (sample_width) { + switch (io->sample_width) { case 2: fn = fsi_dma_soft_pop16; break; |