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ASoC: change set_tdm_slot api to allow slot_width override.

소스 검색 
Extend set_tdm_slot to allow the user to arbitrarily set the frame width
and active TX/RX slots.

Updates magician.c and wm9081.c for the new set_tdm_slot(). wm9081.c
still doesn't handle the slot_width override.

While being there, correct an incorrect use of SlotsPerFrm(7) use in
bitmask on pxa-ssp.c (SSCR0_SlotsPerFrm(x) is (((x) - 1) << 24)) ).

(this series is meant for Mark's for-2.6.32 branch)

Signed-off-by: Daniel Ribeiro <drwyrm@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Daniel Ribeiro
2009-06-15 21:44:31 -03:00
committed by Mark Brown
부모 9029bb316b
커밋 a5479e389e
5개의 변경된 파일과 33개의 추가작업 그리고 15개의 파일을 삭제
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27
sound/soc/pxa/pxa-ssp.c
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@@ -375,21 +375,34 @@ static int pxa_ssp_set_dai_pll(struct snd_soc_dai *cpu_dai,
* Set the active slots in TDM/Network mode
*/
static int pxa_ssp_set_dai_tdm_slot(struct snd_soc_dai *cpu_dai,
unsigned int mask, int slots)
unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width)
{
struct ssp_priv *priv = cpu_dai->private_data;
struct ssp_device *ssp = priv->dev.ssp;
u32 sscr0;
sscr0 = ssp_read_reg(ssp, SSCR0) & ~SSCR0_SlotsPerFrm(7);
sscr0 = ssp_read_reg(ssp, SSCR0);
sscr0 &= ~(SSCR0_MOD | SSCR0_SlotsPerFrm(8) | SSCR0_EDSS | SSCR0_DSS);
/* set number of active slots */
sscr0 |= SSCR0_SlotsPerFrm(slots);
/* set slot width */
if (slot_width > 16)
sscr0 |= SSCR0_EDSS | SSCR0_DataSize(slot_width - 16);
else
sscr0 |= SSCR0_DataSize(slot_width);
if (slots > 1) {
/* enable network mode */
sscr0 |= SSCR0_MOD;
/* set number of active slots */
sscr0 |= SSCR0_SlotsPerFrm(slots);
/* set active slot mask */
ssp_write_reg(ssp, SSTSA, tx_mask);
ssp_write_reg(ssp, SSRSA, rx_mask);
}
ssp_write_reg(ssp, SSCR0, sscr0);
/* set active slot mask */
ssp_write_reg(ssp, SSTSA, mask);
ssp_write_reg(ssp, SSRSA, mask);
return 0;
}