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
}
static int audio_notify_hdmi_info(int audio_type, void *v){
struct snd_pcm_substream *substream =(struct snd_pcm_substream*)v;
if(substream->runtime->rate != audio_sr_info || audio_type_info != audio_type){
printk("audio info changed.notify to hdmi: type %d,sr %d\n",audio_type,substream->runtime->rate);
aout_notifier_call_chain(audio_type,v);
}
audio_sr_info = substream->runtime->rate;
audio_type_info = audio_type;
}
static void audio_notify_hdmi_info(int audio_type, void *v){
struct snd_pcm_substream *substream =(struct snd_pcm_substream*)v;
if(substream->runtime->rate != audio_sr_info || audio_type_info != audio_type || !audio_hdmi_init_ready()
|| substream->runtime->channels != audio_ch_info)
{
printk("audio info changed.notify to hdmi: type %d,sr %d,ch %d\n",audio_type,substream->runtime->rate,
substream->runtime->channels);
aout_notifier_call_chain(audio_type,v);
}
audio_sr_info = substream->runtime->rate;
audio_ch_info = substream->runtime->channels;
audio_type_info = audio_type;
}
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,
extern void aml_hw_iec958_init(struct snd_pcm_substream *substream);
static int aml_dai_i2s_prepare(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct aml_runtime_data *prtd = runtime->private_data;
struct aml_i2s *i2s = snd_soc_dai_get_drvdata(dai);
int audio_clk_config = AUDIO_CLK_FREQ_48;
audio_stream_t *s = &prtd->s;
ALSA_TRACE();
switch (runtime->rate) {
case 192000:
audio_clk_config = AUDIO_CLK_FREQ_192;
break;
case 176400:
audio_clk_config = AUDIO_CLK_FREQ_1764;
break;
case 96000:
audio_clk_config = AUDIO_CLK_FREQ_96;
break;
case 88200:
audio_clk_config = AUDIO_CLK_FREQ_882;
break;
case 48000:
audio_clk_config = AUDIO_CLK_FREQ_48;
break;
case 44100:
audio_clk_config = AUDIO_CLK_FREQ_441;
break;
case 32000:
audio_clk_config = AUDIO_CLK_FREQ_32;
break;
case 8000:
audio_clk_config = AUDIO_CLK_FREQ_8;
break;
case 11025:
audio_clk_config = AUDIO_CLK_FREQ_11;
break;
case 16000:
audio_clk_config = AUDIO_CLK_FREQ_16;
break;
case 22050:
audio_clk_config = AUDIO_CLK_FREQ_22;
break;
case 12000:
audio_clk_config = AUDIO_CLK_FREQ_12;
break;
case 24000:
audio_clk_config = AUDIO_CLK_FREQ_22;
break;
default:
audio_clk_config = AUDIO_CLK_FREQ_441;
break;
};
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
audio_out_i2s_enable(0);
if (i2s->old_samplerate != runtime->rate) {
ALSA_PRINT("enterd %s,old_samplerate:%d,sample_rate=%d\n",
__func__, i2s->old_samplerate, runtime->rate);
i2s->old_samplerate = runtime->rate;
audio_set_i2s_clk(audio_clk_config, AUDIO_CLK_256FS, i2s->mpll);
}
audio_util_set_dac_i2s_format(AUDIO_ALGOUT_DAC_FORMAT_DSP);
if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
s->i2s_mode = dai_info[dai->id].i2s_mode;
audio_in_i2s_set_buf(runtime->dma_addr, runtime->dma_bytes * 2,
0, i2s_pos_sync);
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;
}
s->device_type = AML_AUDIO_I2SIN;
} else {
s->device_type = AML_AUDIO_I2SOUT;
aml_hw_i2s_init(runtime);
/* i2s/958 share the same audio hw buffer when PCM mode */
if (IEC958_mode_codec == 0) {
aml_hw_iec958_init(substream);
/* use the hw same sync for i2s/958 */
WRITE_MPEG_REG_BITS(AIU_I2S_MISC, 1, 3, 1);
}
else
WRITE_MPEG_REG_BITS(AIU_I2S_MISC, 0, 3, 1);
}
if (runtime->channels == 8) {
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 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;
};
audio_set_clk(s->sample_rate, AUDIO_CLK_256FS);
audio_util_set_dac_format(AUDIO_ALGOUT_DAC_FORMAT_DSP);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK){
aml_hw_i2s_init(runtime);
aml_hw_iec958_init();
}
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);
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;
}
}
aout_notifier_call_chain(AOUT_EVENT_PREPARE, substream);
if( IEC958_MODE == AIU_958_MODE_PCM_RAW)
aout_notifier_call_chain(AOUT_EVENT_RAWDATA_AC_3, substream);
if( IEC958_MODE == AIU_958_MODE_RAW)
aout_notifier_call_chain(AOUT_EVENT_RAWDATA_DTS, 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;
}
