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ASoC: fsi: tidyup: move fsi_fifo_init() onto fsi_hw_startup()

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fsi_fifo_init() is called only from fsi_hw_startup()

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 00:51:29 -08:00 committed by Mark Brown
parent d78629e2a4
commit b49e802781
1 changed files with 54 additions and 55 deletions
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109
sound/soc/sh/fsi.c
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@ -692,61 +692,6 @@ static void __fsi_port_clk_ctrl(struct fsi_priv *fsi, int is_play, int enable)
/* /*
* ctrl function * ctrl function
*/ */
static void fsi_fifo_init(struct fsi_priv *fsi,
int is_play,
struct device *dev)
{
struct fsi_master *master = fsi_get_master(fsi);
struct fsi_stream *io = fsi_stream_get(fsi, is_play);
u32 shift, i;
int frame_capa;
/* get on-chip RAM capacity */
shift = fsi_master_read(master, FIFO_SZ);
shift >>= fsi_get_port_shift(fsi, is_play);
shift &= FIFO_SZ_MASK;
frame_capa = 256 << shift;
dev_dbg(dev, "fifo = %d words\n", frame_capa);
/*
* The maximum number of sample data varies depending
* on the number of channels selected for the format.
*
* FIFOs are used in 4-channel units in 3-channel mode
* and in 8-channel units in 5- to 7-channel mode
* meaning that more FIFOs than the required size of DPRAM
* are used.
*
* ex) if 256 words of DP-RAM is connected
* 1 channel: 256 (256 x 1 = 256)
* 2 channels: 128 (128 x 2 = 256)
* 3 channels: 64 ( 64 x 3 = 192)
* 4 channels: 64 ( 64 x 4 = 256)
* 5 channels: 32 ( 32 x 5 = 160)
* 6 channels: 32 ( 32 x 6 = 192)
* 7 channels: 32 ( 32 x 7 = 224)
* 8 channels: 32 ( 32 x 8 = 256)
*/
for (i = 1; i < fsi->chan_num; i <<= 1)
frame_capa >>= 1;
dev_dbg(dev, "%d channel %d store\n",
fsi->chan_num, frame_capa);
io->fifo_sample_capa = fsi_frame2sample(fsi, frame_capa);
/*
* set interrupt generation factor
* clear FIFO
*/
if (is_play) {
fsi_reg_write(fsi, DOFF_CTL, IRQ_HALF);
fsi_reg_mask_set(fsi, DOFF_CTL, FIFO_CLR, FIFO_CLR);
} else {
fsi_reg_write(fsi, DIFF_CTL, IRQ_HALF);
fsi_reg_mask_set(fsi, DIFF_CTL, FIFO_CLR, FIFO_CLR);
}
}
static int fsi_fifo_data_ctrl(struct fsi_priv *fsi, struct fsi_stream *io, static int fsi_fifo_data_ctrl(struct fsi_priv *fsi, struct fsi_stream *io,
void (*run16)(struct fsi_priv *fsi, int size), void (*run16)(struct fsi_priv *fsi, int size),
void (*run32)(struct fsi_priv *fsi, int size), void (*run32)(struct fsi_priv *fsi, int size),
@ -867,6 +812,60 @@ static irqreturn_t fsi_interrupt(int irq, void *data)
/* /*
* dai ops * dai ops
*/ */
static void fsi_fifo_init(struct fsi_priv *fsi,
int is_play,
struct device *dev)
{
struct fsi_master *master = fsi_get_master(fsi);
struct fsi_stream *io = fsi_stream_get(fsi, is_play);
u32 shift, i;
int frame_capa;
/* get on-chip RAM capacity */
shift = fsi_master_read(master, FIFO_SZ);
shift >>= fsi_get_port_shift(fsi, is_play);
shift &= FIFO_SZ_MASK;
frame_capa = 256 << shift;
dev_dbg(dev, "fifo = %d words\n", frame_capa);
/*
* The maximum number of sample data varies depending
* on the number of channels selected for the format.
*
* FIFOs are used in 4-channel units in 3-channel mode
* and in 8-channel units in 5- to 7-channel mode
* meaning that more FIFOs than the required size of DPRAM
* are used.
*
* ex) if 256 words of DP-RAM is connected
* 1 channel: 256 (256 x 1 = 256)
* 2 channels: 128 (128 x 2 = 256)
* 3 channels: 64 ( 64 x 3 = 192)
* 4 channels: 64 ( 64 x 4 = 256)
* 5 channels: 32 ( 32 x 5 = 160)
* 6 channels: 32 ( 32 x 6 = 192)
* 7 channels: 32 ( 32 x 7 = 224)
* 8 channels: 32 ( 32 x 8 = 256)
*/
for (i = 1; i < fsi->chan_num; i <<= 1)
frame_capa >>= 1;
dev_dbg(dev, "%d channel %d store\n",
fsi->chan_num, frame_capa);
io->fifo_sample_capa = fsi_frame2sample(fsi, frame_capa);
/*
* set interrupt generation factor
* clear FIFO
*/
if (is_play) {
fsi_reg_write(fsi, DOFF_CTL, IRQ_HALF);
fsi_reg_mask_set(fsi, DOFF_CTL, FIFO_CLR, FIFO_CLR);
} else {
fsi_reg_write(fsi, DIFF_CTL, IRQ_HALF);
fsi_reg_mask_set(fsi, DIFF_CTL, FIFO_CLR, FIFO_CLR);
}
}
static int fsi_hw_startup(struct fsi_priv *fsi, static int fsi_hw_startup(struct fsi_priv *fsi,
int is_play, int is_play,