int mv88fx_snd_hw_init(struct mv88fx_snd_chip *chip)
{
/* Clear ints */
cs42l51_init();
mv88fx_snd_writel(chip, MV_AUDIO_INT_CAUSE_REG, 0xffffffff);
mv88fx_snd_writel(chip, MV_AUDIO_INT_MASK_REG, 0);
mv88fx_snd_writel(chip, MV_AUDIO_SPDIF_REC_INT_CAUSE_MASK_REG,
0);
if (MV_OK != mvAudioInit())
return EIO;
/* Disable all playback/recording */
mv88fx_snd_bitreset(chip, MV_AUDIO_PLAYBACK_CTRL_REG,
(APCR_PLAY_I2S_ENABLE_MASK |
APCR_PLAY_SPDIF_ENABLE_MASK));
mv88fx_snd_bitreset(chip, MV_AUDIO_RECORD_CTRL_REG,
(ARCR_RECORD_SPDIF_EN_MASK |
ARCR_RECORD_I2S_EN_MASK));
if (MV_OK != mvSPDIFRecordTclockSet()) {
mv88fx_snd_debug("Marvell ALSA driver ERR. mvSPDIFRecordTclockSet failed\n");
return -ENOMEM;
}
return 0;
}
static int mv88fx_i2_hw_init(int port)
{
mv88fx_snd_debug("");
mv88fx_snd_writel(mv88fx_i2s_info[port].base,
MV_AUDIO_INT_CAUSE_REG(port), 0xffffffff);
mv88fx_snd_writel(mv88fx_i2s_info[port].base,
MV_AUDIO_INT_MASK_REG(port), 0);
mv88fx_snd_writel(mv88fx_i2s_info[port].base,
MV_AUDIO_SPDIF_REC_INT_CAUSE_MASK_REG(port), 0);
// if (MV_OK != mvAudioInit(mv88fx_i2s_info.port))
// return -EIO;
mvSysAudioInit(port);
/* Disable all playback/recording */
mv88fx_snd_bitreset(mv88fx_i2s_info[port].base,
MV_AUDIO_PLAYBACK_CTRL_REG(port),
(APCR_PLAY_I2S_ENABLE_MASK | APCR_PLAY_SPDIF_ENABLE_MASK));
mv88fx_snd_bitreset(mv88fx_i2s_info[port].base,
MV_AUDIO_RECORD_CTRL_REG(port),
(ARCR_RECORD_SPDIF_EN_MASK | ARCR_RECORD_I2S_EN_MASK));
if (MV_OK != mvSPDIFRecordTclockSet(port)) {
mv88fx_snd_error("mvSPDIFRecordTclockSet failed");
return -ENOMEM;
}
return 0;
}
static int mv88fx_i2s_playback_trigger(struct snd_pcm_substream *substream,
int cmd)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct mv88fx_snd_stream *audio_stream = runtime->private_data;
struct mv88fx_snd_chip *chip = mv88fx_pcm_get_chip(substream);
int result = 0;
mv88fx_snd_debug("substream=%p cmd=%d audio_stream=%p", substream, cmd,
audio_stream);
spin_lock(&chip->reg_lock);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
mv88fx_snd_debug("");
/* enable interrupt */
mv88fx_snd_bitset(chip->base, MV_AUDIO_INT_MASK_REG(chip->port),
AICR_PLAY_BYTES_INT);
/* make sure the dma in pause state */
mv88fx_snd_bitset(chip->base,
MV_AUDIO_PLAYBACK_CTRL_REG(chip->port),
APCR_PLAY_PAUSE_MASK);
/* enable dma */
if ((audio_stream->dig_mode & I2S) && (chip->pcm_mode == PCM))
mv88fx_snd_bitset(chip->base,
MV_AUDIO_PLAYBACK_CTRL_REG(chip->port),
APCR_PLAY_I2S_ENABLE_MASK);
if (audio_stream->dig_mode & SPDIF)
mv88fx_snd_bitset(chip->base,
MV_AUDIO_PLAYBACK_CTRL_REG(chip->port),
APCR_PLAY_SPDIF_ENABLE_MASK);
/* start dma */
mv88fx_snd_bitreset(chip->base,
MV_AUDIO_PLAYBACK_CTRL_REG(chip->port),
APCR_PLAY_PAUSE_MASK);
break;
case SNDRV_PCM_TRIGGER_STOP:
mv88fx_snd_debug("");
/* disable interrupt */
mv88fx_snd_bitreset(chip->base,
MV_AUDIO_INT_MASK_REG(chip->port),
AICR_PLAY_BYTES_INT);
/* make sure the dma in pause state */
mv88fx_snd_bitset(chip->base,
MV_AUDIO_PLAYBACK_CTRL_REG(chip->port),
APCR_PLAY_PAUSE_MASK);
/* always stop both I2S and SPDIF */
mv88fx_snd_bitreset(chip->base,
MV_AUDIO_PLAYBACK_CTRL_REG(chip->port),
(APCR_PLAY_I2S_ENABLE_MASK |
APCR_PLAY_SPDIF_ENABLE_MASK));
/* check if busy twice */
while (mv88fx_snd_readl(chip->base,
MV_AUDIO_PLAYBACK_CTRL_REG(chip->port)) &
APCR_PLAY_BUSY_MASK)
;
while (mv88fx_snd_readl(chip->base,
MV_AUDIO_PLAYBACK_CTRL_REG(chip->port)) &
APCR_PLAY_BUSY_MASK)
;
break;
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
case SNDRV_PCM_TRIGGER_SUSPEND:
mv88fx_snd_debug("");
mv88fx_snd_bitset(chip->base,
MV_AUDIO_PLAYBACK_CTRL_REG(chip->port),
APCR_PLAY_PAUSE_MASK);
break;
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
mv88fx_snd_debug("");
mv88fx_snd_bitreset(chip->base,
MV_AUDIO_PLAYBACK_CTRL_REG(chip->port),
APCR_PLAY_PAUSE_MASK);
break;
default:
result = -EINVAL;
break;
}
spin_unlock(&chip->reg_lock);
mv88fx_snd_debug("result=%d", result);
return result;
}
static int mv88fx_i2s_capture_trigger(struct snd_pcm_substream *substream,
int cmd)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct mv88fx_snd_stream *audio_stream = runtime->private_data;
struct mv88fx_snd_chip *chip = mv88fx_pcm_get_chip(substream);
int result = 0;
mv88fx_snd_debug("substream=%p cmd=%d audio_stream=%p", substream, cmd,
audio_stream);
spin_lock(&chip->reg_lock);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
/* FIXME: should check if busy before */
mv88fx_snd_debug("");
/* make sure the dma in pause state */
mv88fx_snd_bitset(chip->base,
MV_AUDIO_RECORD_CTRL_REG(chip->port),
ARCR_RECORD_PAUSE_MASK);
/* enable interrupt */
mv88fx_snd_bitset(chip->base, MV_AUDIO_INT_MASK_REG(chip->port),
AICR_RECORD_BYTES_INT);
/* enable dma */
mv88fx_snd_debug("dig_mode=%x", audio_stream->dig_mode);
if (audio_stream->dig_mode & I2S) {
mv88fx_snd_debug("enable dma");
mv88fx_snd_bitset(chip->base,
MV_AUDIO_RECORD_CTRL_REG(chip->port),
ARCR_RECORD_I2S_EN_MASK);
}
if (audio_stream->dig_mode & SPDIF) {
mv88fx_snd_debug("enable spdif dma");
mv88fx_snd_bitset(chip->base,
MV_AUDIO_RECORD_CTRL_REG(chip->port),
ARCR_RECORD_SPDIF_EN_MASK);
}
/* start dma */
mv88fx_snd_bitreset(chip->base,
MV_AUDIO_RECORD_CTRL_REG(chip->port),
ARCR_RECORD_PAUSE_MASK);
break;
case SNDRV_PCM_TRIGGER_STOP:
/* make sure the dma in pause state */
mv88fx_snd_bitset(chip->base,
MV_AUDIO_RECORD_CTRL_REG(chip->port),
ARCR_RECORD_PAUSE_MASK);
/* disable interrupt */
mv88fx_snd_bitreset(chip->base,
MV_AUDIO_INT_MASK_REG(chip->port),
AICR_RECORD_BYTES_INT);
/* always stop both I2S and SPDIF */
mv88fx_snd_bitreset(chip->base,
MV_AUDIO_RECORD_CTRL_REG(chip->port),
(ARCR_RECORD_I2S_EN_MASK | ARCR_RECORD_SPDIF_EN_MASK));
/* FIXME: should check if busy after */
break;
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
case SNDRV_PCM_TRIGGER_SUSPEND:
mv88fx_snd_bitset(chip->base,
MV_AUDIO_RECORD_CTRL_REG(chip->port),
ARCR_RECORD_PAUSE_MASK);
break;
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
mv88fx_snd_bitreset(chip->base,
MV_AUDIO_RECORD_CTRL_REG(chip->port),
ARCR_RECORD_PAUSE_MASK);
break;
default:
result = -EINVAL;
break;
}
spin_unlock(&chip->reg_lock);
mv88fx_snd_debug("result=%d", result);
return result;
}
