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);
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,
static int aml_pcm_prepare(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct aml_runtime_data *prtd = runtime->private_data;
audio_stream_t *s = &prtd->s;
int iec958 = 0;
if(prtd == 0)
return 0;
switch(runtime->rate){
case 192000:
s->sample_rate = AUDIO_CLK_FREQ_192;
break;
case 176400:
s->sample_rate = AUDIO_CLK_FREQ_1764;
break;
case 96000:
s->sample_rate = AUDIO_CLK_FREQ_96;
break;
case 88200:
s->sample_rate = AUDIO_CLK_FREQ_882;
break;
case 48000:
s->sample_rate = AUDIO_CLK_FREQ_48;
iec958 = 2;
break;
case 44100:
s->sample_rate = AUDIO_CLK_FREQ_441;
iec958 = 0;
break;
case 32000:
s->sample_rate = AUDIO_CLK_FREQ_32;
iec958 = 3;
break;
case 8000:
s->sample_rate = AUDIO_CLK_FREQ_8;
break;
case 11025:
s->sample_rate = AUDIO_CLK_FREQ_11;
break;
case 16000:
s->sample_rate = AUDIO_CLK_FREQ_16;
break;
case 22050:
s->sample_rate = AUDIO_CLK_FREQ_22;
break;
case 12000:
s->sample_rate = AUDIO_CLK_FREQ_12;
break;
case 24000:
s->sample_rate = AUDIO_CLK_FREQ_22;
break;
default:
s->sample_rate = AUDIO_CLK_FREQ_441;
break;
};
// iec958 and i2s clock are separated since M8
#if MESON_CPU_TYPE < MESON_CPU_TYPE_MESON8
audio_set_clk(s->sample_rate, AUDIO_CLK_256FS);
audio_util_set_dac_format(AUDIO_ALGOUT_DAC_FORMAT_DSP);
#else
audio_set_i2s_clk(s->sample_rate, AUDIO_CLK_256FS);
audio_set_958_clk(s->sample_rate, AUDIO_CLK_256FS);
audio_util_set_dac_i2s_format(AUDIO_ALGOUT_DAC_FORMAT_DSP);
audio_util_set_dac_958_format(AUDIO_ALGOUT_DAC_FORMAT_DSP);
#endif
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK){
trigger_underun = 0;
aml_hw_i2s_init(runtime);
aml_hw_iec958_init(substream);
}
else{
//printk("aml_pcm_prepare SNDRV_PCM_STREAM_CAPTURE: dma_addr=%x, dma_bytes=%x\n", runtime->dma_addr, runtime->dma_bytes);
audio_in_i2s_set_buf(runtime->dma_addr, runtime->dma_bytes*2,audioin_mode);
memset((void*)runtime->dma_area,0,runtime->dma_bytes*2);
{
int * ppp = (int*)(runtime->dma_area+runtime->dma_bytes*2-8);
ppp[0] = 0x78787878;
ppp[1] = 0x78787878;
}
}
if( IEC958_MODE == AIU_958_MODE_PCM_RAW){
if(IEC958_mode_codec == 4 ){ // need Over clock for dd+
WRITE_MPEG_REG_BITS(AIU_CLK_CTRL, 0, 4, 2); // 4x than i2s
audio_notify_hdmi_info(AOUT_EVENT_RAWDATA_DOBLY_DIGITAL_PLUS, substream);
}else if(IEC958_mode_codec == 3 ||IEC958_mode_codec == 1 ){ // no-over clock for dts pcm mode
audio_notify_hdmi_info(AOUT_EVENT_RAWDATA_DTS, substream);
}
else //dd
audio_notify_hdmi_info(AOUT_EVENT_RAWDATA_AC_3, substream);
}else if(IEC958_mode_codec == 1){
audio_notify_hdmi_info(AOUT_EVENT_RAWDATA_DTS, substream);
}else{
audio_notify_hdmi_info(AOUT_EVENT_IEC_60958_PCM, substream);
}
#if 0
printk("Audio Parameters:\n");
printk("\tsample rate: %d\n", runtime->rate);
printk("\tchannel: %d\n", runtime->channels);
printk("\tsample bits: %d\n", runtime->sample_bits);
printk("\tformat: %s\n", snd_pcm_format_name(runtime->format));
printk("\tperiod size: %ld\n", runtime->period_size);
printk("\tperiods: %d\n", runtime->periods);
printk("\tiec958 mode: %d, raw=%d, codec=%d\n", IEC958_MODE, IEC958_mode_raw, IEC958_mode_codec);
#endif
return 0;
}