void DDC_Init()
{
__inf("DDC_Init\n");
HDMI_WUINT32(0x504,HDMI_RUINT32(0x504)| 0x00000010);//set intial sequence
HDMI_WUINT32(0x500,HDMI_RUINT32(0x500)| 0x08000000);//start
while(HDMI_RUINT32(0x500)& 0x08000000);
HDMI_WUINT32(0x504,HDMI_RUINT32(0x504)& 0xffffffef);//clear intial sequence
}
__s32 DDC_Read(char cmd,char pointer,char offset,int nbyte,char * pbuf)
{
#if 0
char i=0;
char n=0;
char off = offset;
__u32 wait_ms;
__inf("DDC_Read\n");
while(nbyte >0)
{
if(nbyte > 16)
n = 16;
else
n = nbyte;
nbyte = nbyte -n;
HDMI_WUINT32(0x518,HDMI_RUINT32(0x518)| 0x00008000); //FIFO address clear
HDMI_WUINT8(0x50f,pointer ); //segment pointer
HDMI_WUINT8(0x50d,off ); //offset address
HDMI_WUINT32(0x508,(n<<16) +cmd); //nbyte to access and cmd type
HDMI_WUINT32(0x500,HDMI_RUINT32(0x500)| 0x08000000); //start the command
off += n;
wait_ms = 0;
while(HDMI_RUINT32(0x500) & 0x08000000)
{
disp_delay_ms(1);
wait_ms ++;
if(wait_ms > 1000)
{
__wrn("ddc read timeout\n");
return -1;
}
}
i=0;
while(i<n)
{
* pbuf ++ = HDMI_RUINT8(0x580);
i++;
}
}
#endif
return 0;
}
//hdmi_core_close: cp from sun4i, any problem?
__s32 hdmi_core_close(void)
{
HDMI_WUINT32(0x200,0x00000000); //close drv/pll
HDMI_WUINT32(0x204,0x00000000);
HDMI_WUINT32(0x208,0x00000000);
HDMI_WUINT32(0x004,0x00000000); //close hdmi controller
hdmi_state = HDMI_State_Idle;
video_mode = HDMI720P_50;
memset(&audio_info,0,sizeof(HDMI_AUDIO_INFO));
memset(Device_Support_VIC,0,sizeof(Device_Support_VIC));
__inf("reg: 200:0x%08x, 204:0x%08x, 208:0x%08x, 004:0x%08x\n",HDMI_RUINT32(0x200), HDMI_RUINT32(0x204), HDMI_RUINT32(0x208), HDMI_RUINT32(0x004));
return 0;
}
__s32 main_Hpd_Check(void)
{
__s32 i,times;
times = 0;
for(i=0;i<3;i++)
{
hdmi_delay_ms(200);
if( HDMI_RUINT32(0x00c)&0x01)
times++;
}
if(times == 3)
return 1;
else
return 0;
}
static __s32 main_Hpd_Check(void)
{
__s32 i,times_0 = 0,times_1 = 0;
for(i=0;i<3;i++) {
hdmi_delay_ms(200);
if( HDMI_RUINT32(0x00c)&0x01) {
times_1++;
} else {
times_0++;
}
}
if(times_1 == 3)
return 1;
if(times_0 == 3)
return 0;
return HPD;
}
__s32 hdmi_main_task_loop(void)
{
static __u32 times = 0;
HPD = main_Hpd_Check();
if( !HPD )
{
if((times++) >= 10)
{
times = 0;
__inf("unplug state\n");
}
if(hdmi_state > HDMI_State_Wait_Hpd)
{
__inf("plugout\n");
hdmi_state = HDMI_State_Wait_Hpd;
Hdmi_hpd_event();
}
}
switch(hdmi_state)
{
case HDMI_State_Idle:
hdmi_state = HDMI_State_Wait_Hpd;
return 0;
case HDMI_State_Wait_Hpd:
if(HPD)
{
hdmi_state = HDMI_State_EDID_Parse;
__inf("plugin\n");
}else
{
return 0;
}
case HDMI_State_Rx_Sense:
case HDMI_State_EDID_Parse:
HDMI_WUINT32(0x004,0x80000000);
HDMI_WUINT32(0x208,(1<<31)+ (1<<30)+ (1<<29)+ (3<<27)+ (0<<26)+
(1<<25)+ (0<<24)+ (0<<23)+ (4<<20)+ (7<<17)+
(15<<12)+ (7<<8)+ (0x0f<<4)+(8<<0) );
HDMI_WUINT32(0x200,0xfe800000); //txen enable
HDMI_WUINT32(0x204,0x00D8C850); //ckss = 1
HDMI_WUINT32(0x20c, 0 << 21);
ParseEDID();
HDMI_RUINT32(0x5f0);
hdmi_state = HDMI_State_Wait_Video_config;
Hdmi_hpd_event();
case HDMI_State_Wait_Video_config:
if(video_enable)
{
hdmi_state = HDMI_State_Video_config;
}else
{
return 0;
}
case HDMI_State_Video_config:
video_config(video_mode);
hdmi_state = HDMI_State_Audio_config;
case HDMI_State_Audio_config:
audio_config();
hdmi_state = HDMI_State_Playback;
case HDMI_State_Playback:
return 0;
default:
__wrn(" unkonwn hdmi state, set to idle\n");
hdmi_state = HDMI_State_Idle;
return 0;
}
}
__s32 audio_config(void)
{
__s32 i;
__inf("audio_config, sample_rate:%d\n", audio_info.sample_rate);
HDMI_WUINT32(0x040,0x00000000);
HDMI_WUINT32(0x040,0x40000000);
while(HDMI_RUINT32(0x040) != 0);
HDMI_WUINT32(0x040,0x40000000);
while(HDMI_RUINT32(0x040) != 0);
if(!audio_info.audio_en)
{
return 0;
}
i = get_audio_info(audio_info.sample_rate);
if(i == -1)
{
return 0;
}
if(audio_info.channel_num == 1)
{
HDMI_WUINT32(0x044,0x00000000); //audio fifo rst and select ddma, 2 ch 16bit pcm
HDMI_WUINT32(0x048,0x00000000); //ddma,pcm layout0 1ch
HDMI_WUINT32(0x04c,0x76543200);
HDMI_WUINT32(0x0A0,0x710a0184); //audio infoframe head
HDMI_WUINT32(0x0A4,0x00000000); //CA = 0X1F
HDMI_WUINT32(0x0A8,0x00000000);
HDMI_WUINT32(0x0Ac,0x00000000);
}else if(audio_info.channel_num == 2)
{
HDMI_WUINT32(0x044,0x00000000); //audio fifo rst and select ddma, 2 ch 16bit pcm
if(audio_info.data_raw == 0)
{
HDMI_WUINT32(0x048,0x00000001); //ddma,pcm layout0 2ch
}
else
{
HDMI_WUINT32(0x048,0x01000001); //ddma,raw layout0 2ch
}
HDMI_WUINT32(0x04c,0x76543210);
HDMI_WUINT32(0x0A0,0x710a0184); //audio infoframe head
HDMI_WUINT32(0x0A4,0x00000000); //CA = 0X1F
HDMI_WUINT32(0x0A8,0x00000000);
HDMI_WUINT32(0x0Ac,0x00000000);
}else if(audio_info.channel_num == 8)
{
HDMI_WUINT32(0x044,0x00000000); //audio fifo rst and select ddma, 2 ch 16bit pcm
HDMI_WUINT32(0x048,0x0000000f); //ddma,pcm layout1 8ch
HDMI_WUINT32(0x04c,0x76543210);
HDMI_WUINT32(0x0A0,0x520a0184); //audio infoframe head
HDMI_WUINT32(0x0A4,0x1F000000); //CA = 0X1F
HDMI_WUINT32(0x0A8,0x00000000);
HDMI_WUINT32(0x0Ac,0x00000000);
}else
{
__wrn("unkonwn num_ch:%d\n", audio_info.channel_num);
}
HDMI_WUINT32(0x050,audio_info.CTS ); //CTS and N
HDMI_WUINT32(0x054,audio_info.ACR_N );
HDMI_WUINT32(0x058,audio_info.CH_STATUS0 );
HDMI_WUINT32(0x05c,audio_info.CH_STATUS1 );
HDMI_WUINT32(0x040,0x80000000);
HDMI_WUINT32(0x004,0x80000000);
//for audio test
#if 0
//dedicated dma setting aw1623 env
sys_put_wvalue(0xf1c023a4,0x40c00000); //ddma ch5 seting from addr =0x40c00000
sys_put_wvalue(0xf1c023a8,0x00000000); //des =0
sys_put_wvalue(0xf1c023ac,0x01f00000); //byte to trans
sys_put_wvalue(0xf1c023b8,(31<<24) +(7<<16) + (31<<8) +(7<<0)); //data block and wait cycle
sys_put_wvalue(0xf1c023a0,0xa4b80481); //from src0 to des1,continous mode
#endif
return 0;
}