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[ALSA] cmipci: add 96 kHz support 

Add support for 88.2 kHz and 96 kHz analog and digital playback on
CMI8768/CMI8770 chips.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
This commit is contained in:
Clemens Ladisch 2007-09-03 09:54:55 +02:00 committed by Jaroslav Kysela
parent f19a82a119
commit 8992e18db3
1 changed files with 35 additions and 3 deletions
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38
sound/pci/cmipci.c
View File

@ -135,11 +135,14 @@ MODULE_PARM_DESC(joystick_port, "Joystick port address.");
#define CM_ADCDACLEN_280 0x00003000
#define CM_CH1_SRATE_176K 0x00000800
#define CM_CH1_SRATE_96K 0x00000800 /* model 055? */
#define CM_CH1_SRATE_88K 0x00000400
#define CM_CH0_SRATE_176K 0x00000200
#define CM_CH0_SRATE_96K 0x00000200 /* model 055? */
#define CM_CH0_SRATE_88K 0x00000100
#define CM_SPDIF_INVERSE2 0x00000080 /* model 055? */
#define CM_DBLSPDS 0x00000040
#define CM_CH1FMT_MASK 0x0000000C
#define CM_CH1FMT_SHIFT 2
@ -812,6 +815,16 @@ static int snd_cmipci_pcm_prepare(struct cmipci *cm, struct cmipci_pcm *rec,
val &= ~CM_CH0FMT_MASK;
val |= rec->fmt << CM_CH0FMT_SHIFT;
}
if (cm->chip_version == 68) {
if (runtime->rate == 88200)
val |= CM_CH0_SRATE_88K << (rec->ch * 2);
else
val &= ~(CM_CH0_SRATE_88K << (rec->ch * 2));
if (runtime->rate == 96000)
val |= CM_CH0_SRATE_96K << (rec->ch * 2);
else
val &= ~(CM_CH0_SRATE_96K << (rec->ch * 2));
}
snd_cmipci_write(cm, CM_REG_CHFORMAT, val);
//snd_printd("cmipci: chformat = %08x\n", val);
@ -1198,15 +1211,19 @@ static int setup_spdif_playback(struct cmipci *cm, struct snd_pcm_substream *sub
snd_cmipci_set_bit(cm, CM_REG_FUNCTRL1, CM_PLAYBACK_SPDF);
setup_ac3(cm, subs, do_ac3, rate);
if (rate == 48000)
if (rate == 48000 || rate == 96000)
snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_SPDIF48K | CM_SPDF_AC97);
else
snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_SPDIF48K | CM_SPDF_AC97);
if (rate > 48000)
snd_cmipci_set_bit(cm, CM_REG_CHFORMAT, CM_DBLSPDS);
else
snd_cmipci_clear_bit(cm, CM_REG_CHFORMAT, CM_DBLSPDS);
} else {
/* they are controlled via "IEC958 Output Switch" */
/* snd_cmipci_clear_bit(cm, CM_REG_LEGACY_CTRL, CM_ENSPDOUT); */
/* snd_cmipci_clear_bit(cm, CM_REG_FUNCTRL1, CM_SPDO2DAC); */
snd_cmipci_clear_bit(cm, CM_REG_CHFORMAT, CM_DBLSPDS);
snd_cmipci_clear_bit(cm, CM_REG_FUNCTRL1, CM_PLAYBACK_SPDF);
setup_ac3(cm, subs, 0, 0);
}
@ -1226,7 +1243,7 @@ static int snd_cmipci_playback_prepare(struct snd_pcm_substream *substream)
int rate = substream->runtime->rate;
int err, do_spdif, do_ac3 = 0;
do_spdif = ((rate == 44100 || rate == 48000) &&
do_spdif = (rate >= 44100 &&
substream->runtime->format == SNDRV_PCM_FORMAT_S16_LE &&
substream->runtime->channels == 2);
if (do_spdif && cm->can_ac3_hw)
@ -1514,6 +1531,11 @@ static int snd_cmipci_playback_open(struct snd_pcm_substream *substream)
if ((err = open_device_check(cm, CM_OPEN_PLAYBACK, substream)) < 0)
return err;
runtime->hw = snd_cmipci_playback;
if (cm->chip_version == 68) {
runtime->hw.rates |= SNDRV_PCM_RATE_88200 |
SNDRV_PCM_RATE_96000;
runtime->hw.rate_max = 96000;
}
snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 0x10000);
cm->dig_pcm_status = cm->dig_status;
return 0;
@ -1556,6 +1578,11 @@ static int snd_cmipci_playback2_open(struct snd_pcm_substream *substream)
else if (cm->max_channels == 8)
snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, &hw_constraints_channels_8);
}
if (cm->chip_version == 68) {
runtime->hw.rates |= SNDRV_PCM_RATE_88200 |
SNDRV_PCM_RATE_96000;
runtime->hw.rate_max = 96000;
}
snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 0x10000);
}
mutex_unlock(&cm->open_mutex);
@ -1574,6 +1601,11 @@ static int snd_cmipci_playback_spdif_open(struct snd_pcm_substream *substream)
runtime->hw = snd_cmipci_playback_spdif;
if (cm->chip_version >= 37)
runtime->hw.formats |= SNDRV_PCM_FMTBIT_S32_LE;
if (cm->chip_version == 68) {
runtime->hw.rates |= SNDRV_PCM_RATE_88200 |
SNDRV_PCM_RATE_96000;
runtime->hw.rate_max = 96000;
}
} else {
runtime->hw = snd_cmipci_playback_iec958_subframe;
}