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authorLinus Torvalds <torvalds@linux-foundation.org>2009-06-12 11:16:27 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-12 11:16:27 -0700
commite349792a385ed47390d156155b1a1e19af1bf163 (patch)
treef9dc4e3e42769950230eaa58ecdd056eb27b23e8 /sound/soc/omap/omap-mcbsp.c
parent6d21491838a2a9f22843c7530b118596ee9f4d77 (diff)
parente3f86d3d3ce350144562d9bd035dc8a274fce58e (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (290 commits) ALSA: pcm - Update document about xrun_debug proc file ALSA: lx6464es - support standard alsa module parameters ALSA: snd_usb_caiaq: set mixername ALSA: hda - add quirk for STAC92xx (SigmaTel STAC9205) ALSA: use card device as parent for jack input-devices ALSA: sound/ps3: Correct existing and add missing annotations ALSA: sound/ps3: Restructure driver source ALSA: sound/ps3: Fix checkpatch issues ASoC: Fix lm4857 control ALSA: ctxfi - Clear PCM resources at hw_params and hw_free ALSA: ctxfi - Check the presence of SRC instance in PCM pointer callbacks ALSA: ctxfi - Add missing start check in atc_pcm_playback_start() ALSA: ctxfi - Add use_system_timer module option ALSA: usb - Add boot quirk for C-Media 6206 USB Audio ALSA: ctxfi - Fix wrong model id for UAA ALSA: ctxfi - Clean up probe routines ALSA: hda - Fix the previous tagra-8ch patch ALSA: hda - Add 7.1 support for MSI GX620 ALSA: pcm - A helper function to compose PCM stream name for debug prints ALSA: emu10k1 - Fix minimum periods for efx playback ...
Diffstat (limited to 'sound/soc/omap/omap-mcbsp.c')
-rw-r--r--sound/soc/omap/omap-mcbsp.c43
1 files changed, 29 insertions, 14 deletions
diff --git a/sound/soc/omap/omap-mcbsp.c b/sound/soc/omap/omap-mcbsp.c
index 91261428384..a5d46a7b196 100644
--- a/sound/soc/omap/omap-mcbsp.c
+++ b/sound/soc/omap/omap-mcbsp.c
@@ -215,8 +215,9 @@ static int omap_mcbsp_dai_hw_params(struct snd_pcm_substream *substream,
struct omap_mcbsp_data *mcbsp_data = to_mcbsp(cpu_dai->private_data);
struct omap_mcbsp_reg_cfg *regs = &mcbsp_data->regs;
int dma, bus_id = mcbsp_data->bus_id, id = cpu_dai->id;
- int wlen, channels;
+ int wlen, channels, wpf;
unsigned long port;
+ unsigned int format;
if (cpu_class_is_omap1()) {
dma = omap1_dma_reqs[bus_id][substream->stream];
@@ -244,18 +245,24 @@ static int omap_mcbsp_dai_hw_params(struct snd_pcm_substream *substream,
return 0;
}
- channels = params_channels(params);
+ format = mcbsp_data->fmt & SND_SOC_DAIFMT_FORMAT_MASK;
+ wpf = channels = params_channels(params);
switch (channels) {
case 2:
- /* Use dual-phase frames */
- regs->rcr2 |= RPHASE;
- regs->xcr2 |= XPHASE;
+ if (format == SND_SOC_DAIFMT_I2S) {
+ /* Use dual-phase frames */
+ regs->rcr2 |= RPHASE;
+ regs->xcr2 |= XPHASE;
+ /* Set 1 word per (McBSP) frame for phase1 and phase2 */
+ wpf--;
+ regs->rcr2 |= RFRLEN2(wpf - 1);
+ regs->xcr2 |= XFRLEN2(wpf - 1);
+ }
case 1:
- /* Set 1 word per (McBSP) frame */
- regs->rcr2 |= RFRLEN2(1 - 1);
- regs->rcr1 |= RFRLEN1(1 - 1);
- regs->xcr2 |= XFRLEN2(1 - 1);
- regs->xcr1 |= XFRLEN1(1 - 1);
+ case 4:
+ /* Set word per (McBSP) frame for phase1 */
+ regs->rcr1 |= RFRLEN1(wpf - 1);
+ regs->xcr1 |= XFRLEN1(wpf - 1);
break;
default:
/* Unsupported number of channels */
@@ -277,11 +284,12 @@ static int omap_mcbsp_dai_hw_params(struct snd_pcm_substream *substream,
}
/* Set FS period and length in terms of bit clock periods */
- switch (mcbsp_data->fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ switch (format) {
case SND_SOC_DAIFMT_I2S:
- regs->srgr2 |= FPER(wlen * 2 - 1);
+ regs->srgr2 |= FPER(wlen * channels - 1);
regs->srgr1 |= FWID(wlen - 1);
break;
+ case SND_SOC_DAIFMT_DSP_A:
case SND_SOC_DAIFMT_DSP_B:
regs->srgr2 |= FPER(wlen * channels - 1);
regs->srgr1 |= FWID(0);
@@ -326,6 +334,13 @@ static int omap_mcbsp_dai_set_dai_fmt(struct snd_soc_dai *cpu_dai,
regs->rcr2 |= RDATDLY(1);
regs->xcr2 |= XDATDLY(1);
break;
+ case SND_SOC_DAIFMT_DSP_A:
+ /* 1-bit data delay */
+ regs->rcr2 |= RDATDLY(1);
+ regs->xcr2 |= XDATDLY(1);
+ /* Invert FS polarity configuration */
+ temp_fmt ^= SND_SOC_DAIFMT_NB_IF;
+ break;
case SND_SOC_DAIFMT_DSP_B:
/* 0-bit data delay */
regs->rcr2 |= RDATDLY(0);
@@ -492,13 +507,13 @@ static struct snd_soc_dai_ops omap_mcbsp_dai_ops = {
.id = (link_id), \
.playback = { \
.channels_min = 1, \
- .channels_max = 2, \
+ .channels_max = 4, \
.rates = OMAP_MCBSP_RATES, \
.formats = SNDRV_PCM_FMTBIT_S16_LE, \
}, \
.capture = { \
.channels_min = 1, \
- .channels_max = 2, \
+ .channels_max = 4, \
.rates = OMAP_MCBSP_RATES, \
.formats = SNDRV_PCM_FMTBIT_S16_LE, \
}, \