void aml_spdif_play(void)
{
#if 1
struct _aiu_958_raw_setting_t set;
struct _aiu_958_channel_status_t chstat;
struct snd_pcm_substream substream;
struct snd_pcm_runtime runtime;
substream.runtime = &runtime;
runtime.rate = 48000;
runtime.format = SNDRV_PCM_FORMAT_S16_LE;
runtime.channels = 2;
runtime.sample_bits = 16;
memset((void *)(&set), 0, sizeof(set));
memset((void *)(&chstat), 0, sizeof(chstat));
set.chan_stat = &chstat;
set.chan_stat->chstat0_l = 0x0100;
set.chan_stat->chstat0_r = 0x0100;
set.chan_stat->chstat1_l = 0X200;
set.chan_stat->chstat1_r = 0X200;
audio_hw_958_enable(0);
if (old_samplerate != AUDIO_CLK_FREQ_48) {
pr_info("enterd %s,set_clock:%d,sample_rate=%d\n",
__func__, old_samplerate, AUDIO_CLK_FREQ_48);
old_samplerate = AUDIO_CLK_FREQ_48;
aml_set_spdif_clk(48000 * 512, 0);
}
/* Todo, div can be changed, for most case, div = 2 */
/* audio_set_spdif_clk_div(); */
/* 958 divisor: 0=no div; 1=div by 2; 2=div by 3; 3=div by 4. */
if (IEC958_mode_codec == 4 || IEC958_mode_codec == 5 ||
IEC958_mode_codec == 7 || IEC958_mode_codec == 8) {
pr_info("set 4x audio clk for 958\n");
aml_cbus_update_bits(AIU_CLK_CTRL, 3 << 4, 0 << 4);
} else if (0) {
pr_info("share the same clock\n");
aml_cbus_update_bits(AIU_CLK_CTRL, 3 << 4, 1 << 4);
} else {
pr_info("set normal 512 fs /4 fs\n");
aml_cbus_update_bits(AIU_CLK_CTRL, 3 << 4, 3 << 4);
}
/* enable 958 divider */
aml_cbus_update_bits(AIU_CLK_CTRL, 1 << 1, 1 << 1);
audio_util_set_dac_958_format(AUDIO_ALGOUT_DAC_FORMAT_DSP);
memset(iec958buf, 0, sizeof(iec958buf));
audio_set_958outbuf((virt_to_phys(iec958buf) + 63) & (~63), 128, 0);
audio_set_958_mode(AIU_958_MODE_PCM16, &set);
#if OVERCLOCK == 1 || IEC958_OVERCLOCK == 1
/* 512fs divide 4 == 128fs */
aml_cbus_update_bits(AIU_CLK_CTRL, 0x3 << 4, 0x3 << 4);
#else
/* 256fs divide 2 == 128fs */
aml_cbus_update_bits(AIU_CLK_CTRL, 0x3 << 4, 0x1 << 4);
#endif
aout_notifier_call_chain(AOUT_EVENT_IEC_60958_PCM, &substream);
audio_hw_958_enable(1);
#endif
}
void aml_alsa_hw_reprepare(void)
{
/* diable 958 module before call initiation */
audio_hw_958_enable(0);
aml_hw_iec958_init();
}
void am_i2s_trigger_output(void)
{
audio_stream_t *s = NULL;
if (g_prtd == NULL)
{
printk("am_i2s_trigger_output g_prtd == NULL \n");
return ;
}
s = &g_prtd->s;
if (s == NULL)
{
printk("am_i2s_trigger_output g_prtd->s== NULL \n");
return ;
}
if (s->audio_trigger_disable == 1) {
unsigned int pts_audio, pts_scr;
//unsigned int pts_audio_cur = 0;
int sync_mode;
pts_audio = tsync_get_firstapts();
pts_scr = timestamp_pcrscr_get();
sync_mode = tsync_get_mode();
// when pcr chase to apts,start audio playback
if ((sync_mode == TSYNC_MODE_PCRMASTER) && ((pts_audio <= pts_scr))) {
s->disable_count = 0;
s->audio_trigger_disable = 0;
if (s->device_type == AML_AUDIO_I2SOUT) {
printk("trigger aiu i2s playback enable audio %x pcr %x disable count %d \n", pts_audio, pts_scr,
s->disable_count);
audio_out_i2s_enable(1);
audio_hw_958_enable(1);
}
else if (s->device_type == AML_AUDIO_SPDIFOUT) {
printk("trigger aiu 958 playback enable audio %x pcr %x disable count %d\n", pts_audio, pts_scr, s->disable_count);
audio_hw_958_enable(1);
}
}
}
else
{
printk("s->audio_trigger_disable %d \n", s->audio_trigger_disable);
}
}
__LINE__);
aout_notifier_call_chain(AOUT_EVENT_IEC_60958_PCM, substream);
}
return 0;
}
static int aml_dai_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
struct snd_soc_dai *dai)
{
struct snd_pcm_runtime *rtd = substream->runtime;
int *ppp = NULL;
ALSA_TRACE();
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
/* TODO */
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
ALSA_PRINT("aiu i2s playback enable\n\n");
audio_out_i2s_enable(1);
if (IEC958_mode_codec == 0) {
ALSA_PRINT("audio_hw_958_enable 1\n");
audio_hw_958_enable(1);
}
} else {
audio_in_i2s_enable(1);
ppp = (int *)(rtd->dma_area + rtd->dma_bytes * 2 - 8);
ppp[0] = 0x78787878;
ppp[1] = 0x78787878;
}
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
ALSA_PRINT("aiu i2s playback disable\n\n");
audio_out_i2s_enable(0);
if (IEC958_mode_codec == 0) {
ALSA_PRINT("audio_hw_958_enable 0\n");
audio_hw_958_enable(0);
}
} else {
WRITE_MPEG_REG(AIU_958_CHSTAT_R0, 0x1902);
WRITE_MPEG_REG(AIU_958_CHSTAT_R1, 0x900);
aout_notifier_call_chain(AOUT_EVENT_RAWDATA_MAT_MLP, substream);
} else {
aout_notifier_call_chain(AOUT_EVENT_IEC_60958_PCM, substream);
}
ALSA_PRINT("spdif dma %x,phy addr %x\n", (unsigned)runtime->dma_area,
(unsigned)runtime->dma_addr);
}
ALSA_TRACE();
return 0;
}
static int aml_dai_spdif_trigger(struct snd_pcm_substream *substream, int cmd,
struct snd_soc_dai *dai)
{
struct snd_soc_pcm_runtime *rtd = NULL;
ALSA_TRACE();
rtd = (struct snd_soc_pcm_runtime *)substream->private_data;
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
ALSA_PRINT("aiu 958 playback enable\n");
audio_hw_958_enable(1);
} else {
ALSA_PRINT("spdif in capture enable\n");
audio_in_spdif_enable(1);
}
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
ALSA_PRINT("aiu 958 playback disable\n");
audio_hw_958_enable(0);
} else {
ALSA_PRINT("spdif in capture disable\n");
audio_in_spdif_enable(0);
}
break;
default:
return -EINVAL;
void aml_spdif_play(void)
{
_aiu_958_raw_setting_t set;
_aiu_958_channel_status_t chstat;
struct snd_pcm_substream substream;
struct snd_pcm_runtime runtime;
substream.runtime = &runtime;
runtime.rate = 48000;
runtime.format = SNDRV_PCM_FORMAT_S16_LE;
runtime.channels = 2;
runtime.sample_bits = 16;
memset((void *)(&set), 0, sizeof(set));
memset((void *)(&chstat), 0, sizeof(chstat));
set.chan_stat = &chstat;
set.chan_stat->chstat0_l = 0x0100;
set.chan_stat->chstat0_r = 0x0100;
set.chan_stat->chstat1_l = 0X200;
set.chan_stat->chstat1_r = 0X200;
audio_hw_958_enable(0);
if (last_iec_clock != AUDIO_CLK_FREQ_48) {
ALSA_PRINT("enterd %s,set_clock:%d,sample_rate=%d\n", __func__,
last_iec_clock, AUDIO_CLK_FREQ_48);
last_iec_clock = AUDIO_CLK_FREQ_48;
audio_set_958_clk(AUDIO_CLK_FREQ_48, AUDIO_CLK_256FS);
}
audio_util_set_dac_958_format(AUDIO_ALGOUT_DAC_FORMAT_DSP);
memset(iec958buf, 0, sizeof(iec958buf));
audio_set_958outbuf((virt_to_phys(iec958buf) + 63) & (~63), 128, 2, 0);
audio_set_958_mode(AIU_958_MODE_PCM16, &set);
#if OVERCLOCK == 1 || IEC958_OVERCLOCK == 1
WRITE_MPEG_REG_BITS(AIU_CLK_CTRL, 3, 4, 2); /* 512fs divide 4 == 128fs */
#else
WRITE_MPEG_REG_BITS(AIU_CLK_CTRL, 1, 4, 2); /* 256fs divide 2 == 128fs */
#endif
aout_notifier_call_chain(AOUT_EVENT_IEC_60958_PCM, &substream);
static int aml_i2s_copy_playback(struct snd_pcm_runtime *runtime, int channel,
snd_pcm_uframes_t pos,
void __user *buf, snd_pcm_uframes_t count, struct snd_pcm_substream *substream)
{
int res = 0;
int n;
int i = 0, j = 0;
int align = runtime->channels * 32 / runtime->byte_align;
char *hwbuf = runtime->dma_area + frames_to_bytes(runtime, pos);
struct aml_runtime_data *prtd = runtime->private_data;
struct snd_dma_buffer *buffer = &substream->dma_buffer;
struct aml_audio_buffer *tmp_buf = buffer->private_data;
void *ubuf = tmp_buf->buffer_start;
audio_stream_t *s = &prtd->s;
int force_reinit_958 = 0;
force_reinit_958 = (IEC958_mode_codec == 0 && (READ_MPEG_REG(AIU_MEM_IEC958_START_PTR) != READ_MPEG_REG(AIU_MEM_I2S_START_PTR)));
if (s && s->device_type == AML_AUDIO_I2SOUT && (trigger_underrun) && kernel_android_50 == 1) {
printk("i2s out trigger underrun force_reinit_958/%d trigger_underrun/%d IEC958_mode_codec/%d IEC958_START_PTR/0x%x I2S_START_PTR/0x%x\n",
force_reinit_958, trigger_underrun, IEC958_mode_codec, READ_MPEG_REG(AIU_MEM_IEC958_START_PTR), READ_MPEG_REG(AIU_MEM_I2S_START_PTR));
//trigger_underrun = 0;
return -EFAULT;
}
if (s && s->device_type == AML_AUDIO_I2SOUT && force_reinit_958 && kernel_android_50 == 1) {
printk("i2s out trigger underrun force_reinit_958/%d", force_reinit_958);
audio_hw_958_enable(0);
aml_hw_iec958_init(substream);
audio_hw_958_enable(1);
}
if (s->device_type == AML_AUDIO_I2SOUT) {
aml_i2s_alsa_write_addr = frames_to_bytes(runtime, pos);
}
n = frames_to_bytes(runtime, count);
if (aml_i2s_playback_enable == 0 && s->device_type == AML_AUDIO_I2SOUT) {
return res;
}
res = copy_from_user(ubuf, buf, n);
if (res) {
return -EFAULT;
}
if (access_ok(VERIFY_READ, buf, frames_to_bytes(runtime, count))) {
if (runtime->format == SNDRV_PCM_FORMAT_S16_LE) {
int16_t * tfrom, *to, *left, *right;
tfrom = (int16_t*)ubuf;
to = (int16_t*)hwbuf;
left = to;
right = to + 16;
if (pos % align) {
printk("audio data unligned: pos=%d, n=%d, align=%d\n", (int)pos, n, align);
}
if (set_android_gain_enable == 0) {
for (j = 0; j < n; j += 64) {
for (i = 0; i < 16; i++) {
*left++ = (*tfrom++) ;
*right++ = (*tfrom++);
}
left += 16;
right += 16;
}
} else {
for (j = 0; j < n; j += 64) {
for (i = 0; i < 16; i++) {
*left++ = (int16_t)(((*tfrom++) * android_left_gain) >> 8);
*right++ = (int16_t)(((*tfrom++) * android_right_gain) >> 8);
}
left += 16;
right += 16;
}
}
} else if (runtime->format == SNDRV_PCM_FORMAT_S24_LE && I2S_MODE == AIU_I2S_MODE_PCM24) {
static int aml_i2s_trigger(struct snd_pcm_substream *substream,
int cmd)
{
struct snd_pcm_runtime *rtd = substream->runtime;
struct aml_runtime_data *prtd = rtd->private_data;
audio_stream_t *s = &prtd->s;
int ret = 0;
unsigned int pts_audio, pts_scr;
unsigned int diff = 0;
int sync_mode;
ALSA_TRACE();
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
#if USE_HRTIMER == 0 && !defined(USE_HW_TIMER)
del_timer_sync(&prtd->timer);
#endif
spin_lock(&s->lock);
#if USE_HRTIMER == 0 && !defined(USE_HW_TIMER)
prtd->timer.expires = jiffies + 1;
del_timer(&prtd->timer);
add_timer(&prtd->timer);
#endif
pts_audio = tsync_get_firstapts();
pts_scr = timestamp_pcrscr_get();
sync_mode = tsync_get_mode();
#if 1
if (pts_audio > pts_scr)
diff = pts_audio - pts_scr;
else
diff = pts_scr - pts_audio;
if (IEC958_mode_codec == 0 && sync_mode == TSYNC_MODE_PCRMASTER && pts_audio > pts_scr && (pts_audio - pts_scr) < 90 * MAX_APTS_SCR_DELTA) {
printk("aiu i2s playback enable trigger mode sync_mode %d audio %x pcr %x diff %d \n", sync_mode, pts_audio, pts_scr, diff);
s->audio_trigger_disable = 1;
}
else
#endif
{
printk("aiu i2s/958 playback enable sync_mode %d audio %x pcr %x diff %d IEC958_mode_codec %d\n", sync_mode, pts_audio, pts_scr, diff, IEC958_mode_codec);
s->disable_count = 0;
s->audio_trigger_disable = 0;
if (IEC958_mode_codec == 0) {
printk("aiu i2s/958 playback enable sync_mode %d audio %x pcr %x diff %d \n", sync_mode, pts_audio, pts_scr, diff);
audio_out_i2s_enable(1);
audio_hw_958_enable(1);
}
}
s->active = 1;
spin_unlock(&s->lock);
break; /* SNDRV_PCM_TRIGGER_START */
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
case SNDRV_PCM_TRIGGER_STOP:
// TODO
spin_lock(&s->lock);
s->audio_trigger_disable = 0;
s->disable_count = 0;
if (IEC958_mode_codec == 0)
{
printk("aiu i2s playback disable\n");
audio_out_i2s_enable(0);
printk("aiu 958 playback disable\n");
audio_hw_958_enable(0);
}
s->active = 0;
spin_unlock(&s->lock);
break;
default:
ret = -EINVAL;
}
/* if(clock_gating_status&clock_gating_playback){
if(substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
aml_pcm_work.substream = substream;
}
else
aml_pcm_work.substream = substream;
if (clock_gating_status)
{
schedule_work(&aml_pcm_work.aml_codec_workqueue);
}
*/
//schedule_work(&aml_pcm_work.aml_codec_workqueue);
return ret;
}
1)NONE-PCM raw output ,only available when ac3/dts audio,when raw output mode is selected by user.
2)PCM output for all audio, when pcm mode is selected by user .
3)PCM output for audios except ac3/dts,when raw output mode is selected by user
*/
void aml_hw_iec958_init(struct snd_pcm_substream *substream)
{
_aiu_958_raw_setting_t set;
_aiu_958_channel_status_t chstat;
unsigned i2s_mode, iec958_mode;
unsigned start, size;
int sample_rate;
struct snd_dma_buffer *buf = &substream->dma_buffer;
struct snd_pcm_runtime *runtime = substream->runtime;
if (buf == NULL && runtime == NULL) {
printk("buf/0x%x runtime/0x%x\n", (unsigned)buf,
(unsigned)runtime);
return;
}
i2s_mode = AIU_I2S_MODE_PCM16;
sample_rate = AUDIO_CLK_FREQ_48;
memset((void *)(&set), 0, sizeof(set));
memset((void *)(&chstat), 0, sizeof(chstat));
set.chan_stat = &chstat;
printk("----aml_hw_iec958_init,runtime->rate=%d--\n", runtime->rate);
switch (runtime->rate) {
case 192000:
sample_rate = AUDIO_CLK_FREQ_192;
break;
case 176400:
sample_rate = AUDIO_CLK_FREQ_1764;
break;
case 96000:
sample_rate = AUDIO_CLK_FREQ_96;
break;
case 88200:
sample_rate = AUDIO_CLK_FREQ_882;
break;
case 48000:
sample_rate = AUDIO_CLK_FREQ_48;
break;
case 44100:
sample_rate = AUDIO_CLK_FREQ_441;
break;
case 32000:
sample_rate = AUDIO_CLK_FREQ_32;
break;
case 8000:
sample_rate = AUDIO_CLK_FREQ_8;
break;
case 11025:
sample_rate = AUDIO_CLK_FREQ_11;
break;
case 16000:
sample_rate = AUDIO_CLK_FREQ_16;
break;
case 22050:
sample_rate = AUDIO_CLK_FREQ_22;
break;
case 12000:
sample_rate = AUDIO_CLK_FREQ_12;
break;
case 24000:
sample_rate = AUDIO_CLK_FREQ_22;
break;
default:
sample_rate = AUDIO_CLK_FREQ_441;
break;
};
audio_hw_958_enable(0);
if (last_iec_clock != sample_rate) {
ALSA_PRINT("enterd %s,set_clock:%d,sample_rate=%d\n", __func__,
last_iec_clock, sample_rate);
last_iec_clock = sample_rate;
audio_set_958_clk(sample_rate, AUDIO_CLK_256FS);
}
printk("----aml_hw_iec958_init,runtime->rate=%d,sample_rate=%d--\n",
runtime->rate, sample_rate);
audio_util_set_dac_958_format(AUDIO_ALGOUT_DAC_FORMAT_DSP);
/*clear the same source function as new raw data output */
WRITE_MPEG_REG_BITS(AIU_I2S_MISC, 0, 3, 1);
switch (runtime->format) {
case SNDRV_PCM_FORMAT_S32_LE:
i2s_mode = AIU_I2S_MODE_PCM32;
break;
case SNDRV_PCM_FORMAT_S24_LE:
i2s_mode = AIU_I2S_MODE_PCM24;
break;
case SNDRV_PCM_FORMAT_S16_LE:
i2s_mode = AIU_I2S_MODE_PCM16;
break;
}
/* audio_set_i2s_mode(i2s_mode); */
/* case 1,raw mode enabled */
if (IEC958_mode_codec) {
if (IEC958_mode_codec == 1) { /* dts, use raw sync-word mode */
iec958_mode = AIU_958_MODE_RAW;
printk("iec958 mode RAW\n");
} else { /* ac3,use the same pcm mode as i2s configuration */
iec958_mode = AIU_958_MODE_PCM_RAW;
printk("iec958 mode %s\n",
(i2s_mode ==
AIU_I2S_MODE_PCM32) ? "PCM32_RAW" : ((I2S_MODE
==
AIU_I2S_MODE_PCM24)
?
"PCM24_RAW"
:
"PCM16_RAW"));
}
} else {
if (i2s_mode == AIU_I2S_MODE_PCM32)
iec958_mode = AIU_958_MODE_PCM32;
else if (i2s_mode == AIU_I2S_MODE_PCM24)
iec958_mode = AIU_958_MODE_PCM24;
else
iec958_mode = AIU_958_MODE_PCM16;
printk("iec958 mode %s\n",
(i2s_mode ==
AIU_I2S_MODE_PCM32) ? "PCM32" : ((i2s_mode ==
AIU_I2S_MODE_PCM24) ?
"PCM24" : "PCM16"));
}
if (iec958_mode == AIU_958_MODE_PCM16
|| iec958_mode == AIU_958_MODE_PCM24
|| iec958_mode == AIU_958_MODE_PCM32) {
set.chan_stat->chstat0_l = 0x0100;
set.chan_stat->chstat0_r = 0x0100;
set.chan_stat->chstat1_l = 0x200;
set.chan_stat->chstat1_r = 0x200;
if (sample_rate == AUDIO_CLK_FREQ_882) {
printk("----sample_rate==AUDIO_CLK_FREQ_882---\n");
set.chan_stat->chstat1_l = 0x800;
set.chan_stat->chstat1_r = 0x800;
}
if (sample_rate == AUDIO_CLK_FREQ_96) {
printk("----sample_rate==AUDIO_CLK_FREQ_96---\n");
set.chan_stat->chstat1_l = 0xa00;
set.chan_stat->chstat1_r = 0xa00;
}
start = buf->addr;
size = snd_pcm_lib_buffer_bytes(substream);
audio_set_958outbuf(start, size, runtime->channels, 0);
/* audio_set_i2s_mode(AIU_I2S_MODE_PCM16); */
/* audio_set_aiubuf(start, size); */
} else {
set.chan_stat->chstat0_l = 0x1902;
set.chan_stat->chstat0_r = 0x1902;
if (IEC958_mode_codec == 4 || IEC958_mode_codec == 5) { /* DD+ */
if (runtime->rate == 32000) {
set.chan_stat->chstat1_l = 0x300;
set.chan_stat->chstat1_r = 0x300;
} else if (runtime->rate == 44100) {
set.chan_stat->chstat1_l = 0xc00;
set.chan_stat->chstat1_r = 0xc00;
} else {
set.chan_stat->chstat1_l = 0Xe00;
set.chan_stat->chstat1_r = 0Xe00;
}
} else { /* DTS,DD */
if (runtime->rate == 32000) {
set.chan_stat->chstat1_l = 0x300;
set.chan_stat->chstat1_r = 0x300;
} else if (runtime->rate == 44100) {
set.chan_stat->chstat1_l = 0;
set.chan_stat->chstat1_r = 0;
} else {
set.chan_stat->chstat1_l = 0x200;
set.chan_stat->chstat1_r = 0x200;
}
}
start = buf->addr;
size = snd_pcm_lib_buffer_bytes(substream);
audio_set_958outbuf(start, size, runtime->channels,
(iec958_mode == AIU_958_MODE_RAW) ? 1 : 0);
memset((void *)buf->area, 0, size);
}
ALSA_DEBUG("aiu 958 pcm buffer size %d \n", size);
audio_set_958_mode(iec958_mode, &set);
if (IEC958_mode_codec == 4 || IEC958_mode_codec == 5
|| IEC958_mode_codec == 7 || IEC958_mode_codec == 8) {
WRITE_MPEG_REG_BITS(AIU_CLK_CTRL, 0, 4, 2); /* 4x than i2s */
printk("IEC958_mode_codec/%d 4x than i2s\n",
IEC958_mode_codec);
} else {
#if OVERCLOCK == 1 || IEC958_OVERCLOCK == 1
WRITE_MPEG_REG_BITS(AIU_CLK_CTRL, 3, 4, 2); /* 512fs divide 4 == 128fs */
#else
WRITE_MPEG_REG_BITS(AIU_CLK_CTRL, 1, 4, 2); /* 256fs divide 2 == 128fs */
#endif
}
if (IEC958_mode_codec == 2) {
aout_notifier_call_chain(AOUT_EVENT_RAWDATA_AC_3, substream);
} else if (IEC958_mode_codec == 3) {
aout_notifier_call_chain(AOUT_EVENT_RAWDATA_DTS, substream);
} else if (IEC958_mode_codec == 4) {
aout_notifier_call_chain(AOUT_EVENT_RAWDATA_DOBLY_DIGITAL_PLUS,
void aml_hw_iec958_init(struct snd_pcm_substream *substream)
{
struct _aiu_958_raw_setting_t set;
struct _aiu_958_channel_status_t chstat;
unsigned i2s_mode, iec958_mode;
unsigned start, size;
int sample_rate;
struct snd_dma_buffer *buf = &substream->dma_buffer;
struct snd_pcm_runtime *runtime = substream->runtime;
if (buf == NULL && runtime == NULL) {
pr_info("buf/%p runtime/%p\n", buf, runtime);
return;
}
i2s_mode = AIU_I2S_MODE_PCM16;
sample_rate = AUDIO_CLK_FREQ_48;
memset((void *)(&set), 0, sizeof(set));
memset((void *)(&chstat), 0, sizeof(chstat));
set.chan_stat = &chstat;
switch (runtime->rate) {
case 192000:
sample_rate = AUDIO_CLK_FREQ_192;
break;
case 176400:
sample_rate = AUDIO_CLK_FREQ_1764;
break;
case 96000:
sample_rate = AUDIO_CLK_FREQ_96;
break;
case 88200:
sample_rate = AUDIO_CLK_FREQ_882;
break;
case 48000:
sample_rate = AUDIO_CLK_FREQ_48;
break;
case 44100:
sample_rate = AUDIO_CLK_FREQ_441;
break;
case 32000:
sample_rate = AUDIO_CLK_FREQ_32;
break;
case 8000:
sample_rate = AUDIO_CLK_FREQ_8;
break;
case 11025:
sample_rate = AUDIO_CLK_FREQ_11;
break;
case 16000:
sample_rate = AUDIO_CLK_FREQ_16;
break;
case 22050:
sample_rate = AUDIO_CLK_FREQ_22;
break;
case 12000:
sample_rate = AUDIO_CLK_FREQ_12;
break;
case 24000:
sample_rate = AUDIO_CLK_FREQ_22;
break;
default:
sample_rate = AUDIO_CLK_FREQ_441;
break;
};
audio_hw_958_enable(0);
pr_info("----aml_hw_iec958_init,runtime->rate=%d,sample_rate=%d--\n",
runtime->rate, sample_rate);
/* int srate; */
/* srate = params_rate(params); */
if (old_samplerate != sample_rate) {
old_samplerate = sample_rate;
aml_set_spdif_clk(runtime->rate * 512, 0);
}
/* Todo, div can be changed, for most case, div = 2 */
/* audio_set_spdif_clk_div(); */
/* 958 divisor: 0=no div; 1=div by 2; 2=div by 3; 3=div by 4. */
if (IEC958_mode_codec == 4 || IEC958_mode_codec == 5 ||
IEC958_mode_codec == 7 || IEC958_mode_codec == 8) {
pr_info("set 4x audio clk for 958\n");
aml_cbus_update_bits(AIU_CLK_CTRL, 3 << 4, 0 << 4);
} else if (0) {
pr_info("share the same clock\n");
aml_cbus_update_bits(AIU_CLK_CTRL, 3 << 4, 1 << 4);
} else {
pr_info("set normal 512 fs /4 fs\n");
aml_cbus_update_bits(AIU_CLK_CTRL, 3 << 4, 3 << 4);
}
/* enable 958 divider */
aml_cbus_update_bits(AIU_CLK_CTRL, 1 << 1, 1 << 1);
audio_util_set_dac_958_format(AUDIO_ALGOUT_DAC_FORMAT_DSP);
/*clear the same source function as new raw data output */
audio_i2s_958_same_source(0);
switch (runtime->format) {
case SNDRV_PCM_FORMAT_S32_LE:
i2s_mode = AIU_I2S_MODE_PCM32;
break;
case SNDRV_PCM_FORMAT_S24_LE:
i2s_mode = AIU_I2S_MODE_PCM24;
break;
case SNDRV_PCM_FORMAT_S16_LE:
i2s_mode = AIU_I2S_MODE_PCM16;
break;
}
/* audio_set_i2s_mode(i2s_mode); */
/* case 1,raw mode enabled */
if (IEC958_mode_codec) {
if (IEC958_mode_codec == 1) {
/* dts, use raw sync-word mode */
iec958_mode = AIU_958_MODE_RAW;
pr_info("iec958 mode RAW\n");
} else {
/* ac3,use the same pcm mode as i2s configuration */
iec958_mode = AIU_958_MODE_PCM_RAW;
pr_info("iec958 mode %s\n",
(i2s_mode == AIU_I2S_MODE_PCM32) ? "PCM32_RAW"
: ((I2S_MODE == AIU_I2S_MODE_PCM24) ?
"PCM24_RAW" : "PCM16_RAW"));
}
} else {
if (i2s_mode == AIU_I2S_MODE_PCM32)
iec958_mode = AIU_958_MODE_PCM32;
else if (i2s_mode == AIU_I2S_MODE_PCM24)
iec958_mode = AIU_958_MODE_PCM24;
else
iec958_mode = AIU_958_MODE_PCM16;
pr_info("iec958 mode %s\n",
(i2s_mode ==
AIU_I2S_MODE_PCM32) ? "PCM32" : ((i2s_mode ==
AIU_I2S_MODE_PCM24) ?
"PCM24" : "PCM16"));
}
if (iec958_mode == AIU_958_MODE_PCM16
|| iec958_mode == AIU_958_MODE_PCM24
|| iec958_mode == AIU_958_MODE_PCM32) {
set.chan_stat->chstat0_l = 0x0100;
set.chan_stat->chstat0_r = 0x0100;
set.chan_stat->chstat1_l = 0x200;
set.chan_stat->chstat1_r = 0x200;
if (sample_rate == AUDIO_CLK_FREQ_882) {
pr_info("----sample_rate==AUDIO_CLK_FREQ_882---\n");
set.chan_stat->chstat1_l = 0x800;
set.chan_stat->chstat1_r = 0x800;
}
if (sample_rate == AUDIO_CLK_FREQ_96) {
pr_info("----sample_rate==AUDIO_CLK_FREQ_96---\n");
set.chan_stat->chstat1_l = 0xa00;
set.chan_stat->chstat1_r = 0xa00;
}
start = buf->addr;
size = snd_pcm_lib_buffer_bytes(substream);
audio_set_958outbuf(start, size, 0);
/* audio_set_i2s_mode(AIU_I2S_MODE_PCM16); */
/* audio_set_aiubuf(start, size); */
} else {
set.chan_stat->chstat0_l = 0x1902;
set.chan_stat->chstat0_r = 0x1902;
if (IEC958_mode_codec == 4 || IEC958_mode_codec == 5) {
/* DD+ */
if (runtime->rate == 32000) {
set.chan_stat->chstat1_l = 0x300;
set.chan_stat->chstat1_r = 0x300;
} else if (runtime->rate == 44100) {
set.chan_stat->chstat1_l = 0xc00;
set.chan_stat->chstat1_r = 0xc00;
} else {
set.chan_stat->chstat1_l = 0Xe00;
set.chan_stat->chstat1_r = 0Xe00;
}
} else {
/* DTS,DD */
if (runtime->rate == 32000) {
set.chan_stat->chstat1_l = 0x300;
set.chan_stat->chstat1_r = 0x300;
} else if (runtime->rate == 44100) {
set.chan_stat->chstat1_l = 0;
set.chan_stat->chstat1_r = 0;
} else {
set.chan_stat->chstat1_l = 0x200;
set.chan_stat->chstat1_r = 0x200;
}
}
start = buf->addr;
size = snd_pcm_lib_buffer_bytes(substream);
audio_set_958outbuf(start, size,
(iec958_mode == AIU_958_MODE_RAW) ? 1 : 0);
memset((void *)buf->area, 0, size);
}
ALSA_DEBUG("aiu 958 pcm buffer size %d\n", size);
audio_set_958_mode(iec958_mode, &set);
if (IEC958_mode_codec == 2) {
aout_notifier_call_chain(AOUT_EVENT_RAWDATA_AC_3, substream);
} else if (IEC958_mode_codec == 3) {
aout_notifier_call_chain(AOUT_EVENT_RAWDATA_DTS, substream);
} else if (IEC958_mode_codec == 4) {
aout_notifier_call_chain(AOUT_EVENT_RAWDATA_DOBLY_DIGITAL_PLUS,
substream);
} else if (IEC958_mode_codec == 5) {
aout_notifier_call_chain(AOUT_EVENT_RAWDATA_DTS_HD, substream);
} else if (IEC958_mode_codec == 7 || IEC958_mode_codec == 8) {
aml_write_cbus(AIU_958_CHSTAT_L0, 0x1902);
aml_write_cbus(AIU_958_CHSTAT_L1, 0x900);
aml_write_cbus(AIU_958_CHSTAT_R0, 0x1902);
aml_write_cbus(AIU_958_CHSTAT_R1, 0x900);
if (IEC958_mode_codec == 8)
aout_notifier_call_chain(AOUT_EVENT_RAWDATA_DTS_HD_MA,
substream);
else
aout_notifier_call_chain(AOUT_EVENT_RAWDATA_MAT_MLP,
substream);
} else {
aout_notifier_call_chain(AOUT_EVENT_IEC_60958_PCM, substream);
}
}
static void aml_spdif_play_stop(void)
{
audio_hw_958_enable(0);
}