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ASoC: fsi: reduce runtime calculation by using pre-setting

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Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Kuninori Morimoto 2012-02-03 00:50:09 -08:00 committed by Mark Brown
parent 9f71770b88
commit c1e6f10ea9
1 changed files with 5 additions and 6 deletions
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11
sound/soc/sh/fsi.c
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@ -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;