unsigned int EP932_HotPlugMonitorInt(void)
{
unsigned char temp;
is_Hot_Plug = HDMI_Tx_HTPLG();
EP932_Reg_Read(EP932_General_Control_2, &temp, 1);
if(temp & 0x1)
return is_Hot_Plug;
else
return -1;
}
CBUS_LINK_STATE EP956Control_Link_Task(void)
{
//
// Check the basic connection status
//
// Check RSEN
if(HDMI_Tx_RSEN()) {
is_ReceiverSense = 1;
RSEN_ChangeCount = 0;
}
else {
// RSEN Deglitch timing: min = 100 ms; Max = 200 ms
if(++RSEN_ChangeCount > (150/LINK_TASK_TIME_BASE)) { // Accept continuous 1 error = 80 ms
RSEN_ChangeCount = 0;
is_ReceiverSense = 0;
}
}
// Update RSEN
if(is_ReceiverSense) {
pEP956C_Registers->System_Status |= EP956E_System_Status__RSEN;
}
else {
pEP956C_Registers->System_Status &= ~EP956E_System_Status__RSEN;
}
#ifdef MHL_CODE
// CBUS connections state
// The delay between each state must be 80 ms.
switch(ConnectionState) {
case CBUS_LINK_STATE__USB_Mode: // Measure the CBUS Impedance
if( MHL_Tx_MEASURE_1KOHM() ) {
EP_DEV_DBG("CBUS Connection: 1KOhm Detected\n");
MHL_Tx_USB_Mode(FALSE);
is_VBus_Power = VBUS_Power(0);
ConnectionState = CBUS_LINK_STATE__1KOHM_Detected;
}
else {
// USB Mode
MHL_Tx_USB_Mode(TRUE);
}
break;
case CBUS_LINK_STATE__1KOHM_Detected: // Try VBus On
is_VBus_Power = VBUS_Power(1);
MHL_Tx_CBUS_Connect();
EP_DEV_DBG("CBUS Connection: Start Connect\n");
ConnectionState = CBUS_LINK_STATE__Start_Connect;
TimeOut_Count = 0;
break;
case CBUS_LINK_STATE__Start_Connect: // Check CBUS Connection status
if( MHL_Tx_Connection_Status() ) {
if( MHL_Tx_Connection_Status() == MHL_NOT_CONNECTED) {
MHL_Tx_CBUS_Disconnect();
is_VBus_Power = VBUS_Power(0); // VBUS Off
EP_DEV_DBG("CBUS Connection: Connect Fail\n");
ConnectionState = CBUS_LINK_STATE__USB_Mode;
}
else {
is_CBUS_OK = 0;
is_DACP_Change = 0;
EP_DEV_DBG("CBUS Connection: Connected\n");
ConnectionState = CBUS_LINK_STATE__Check_DCAP;
TimeOut_Count = 0;
}
}
else if(TimeOut_Count >= (2000/LINK_TASK_TIME_BASE)) { // 2 sec timeout
MHL_Tx_CBUS_Disconnect();
is_VBus_Power = VBUS_Power(0); // VBUS Off
EP_DEV_DBG("CBUS Connection: Connection Timeout\n");
ConnectionState = CBUS_LINK_STATE__USB_Mode;
}
else {
TimeOut_Count++;
if( !MHL_Tx_VBUS_Power() ) {
MHL_Tx_CBUS_Disconnect();
is_VBus_Power = VBUS_Power(0); // VBUS Off
EP_DEV_DBG("CBUS Connection: VBUS missing\n");
ConnectionState = CBUS_LINK_STATE__USB_Mode;
}
}
break;
case CBUS_LINK_STATE__Check_DCAP: // Check DCAP
//if(MHL_MSC_Reg_Read(MSC_RCHANGE_INT) & DCAP_CHG) {
if(is_DACP_Change) { // Use interrupt pin to detect the DCAP_CHG event
if(MHL_MSC_Reg_Read(MSC_STATUS_CONNECTED_RDY) & DCAP_RDY) {
// Read Device Cap
EP_DEV_DBG("Device Cap Change\n");
Exchange_DCAP();
Set_DCAP_Ready();
ConnectionState = CBUS_LINK_STATE__Connected;
}
}
else {
if(MHL_MSC_Reg_Read(MSC_STATUS_CONNECTED_RDY) & DCAP_RDY) {
// Read Device Cap
EP_DEV_DBG("Device Cap Ready\n");
Exchange_DCAP();
Set_DCAP_Ready();
ConnectionState = CBUS_LINK_STATE__Connected;
}
}
// Make sure the RSEN is OK
if(TimeOut_Count >= (100/LINK_TASK_TIME_BASE)) { // RXRSEN_CHK = 300 - 500 ms
if(!is_ReceiverSense) {
MHL_Tx_CBUS_Disconnect();
is_VBus_Power = VBUS_Power(0); // VBus Off
EP_DEV_DBG("CBUS Connection: RSEN missing\n");
ConnectionState = CBUS_LINK_STATE__USB_Mode;
}
}
// Time-out
if(TimeOut_Count >= (2000/LINK_TASK_TIME_BASE)) { // 2 sec timeout
// Read Device Cap
EP_DEV_DBG("Device Cap waiting Timeout\n");
//Exchange_DCAP(); // Force to read DCAP or Skip? (Skip it for 6.3.6.4 - 3 test)
Set_DCAP_Ready();
ConnectionState = CBUS_LINK_STATE__Connected;
}
TimeOut_Count++;
break;
case CBUS_LINK_STATE__Connected: // CBus Connected
// Check Hot-Plug / EDID Change Interrupt
if( MHL_Tx_Connection_Status() == MHL_HOTPLUG_DETECT ) { // CBUS Connect && MSC_HPD detect
if(MHL_MSC_Reg_Read(MSC_DCHANGE_INT) & EDID_CHG) {
is_Connected = is_Hot_Plug = 0;
}
else {
is_Connected = is_Hot_Plug = 1;
}
}
else {
is_Connected = is_Hot_Plug = 0;
}
// Check Receiver Sense
if(!is_ReceiverSense) {
is_Connected = is_Hot_Plug = 0;
MHL_Tx_CBUS_Disconnect();
is_VBus_Power = VBUS_Power(0); // VBus Off
EP_DEV_DBG("CBUS Connection: Disconnect\n");
ConnectionState = CBUS_LINK_STATE__USB_Mode;
}
// Check PATH_EN
if(MHL_MSC_Reg_Read(MSC_STATUS_LINK_MODE) & PATH_EN) {
if(!is_PATH_EN) {
EP_DEV_DBG("CBUS Connection: Get PATH_EN = 1\n");
is_PATH_EN = 1;
if(is_PackedPixelMode)
MHL_MSC_Cmd_WRITE_STATE(MSC_STATUS_LINK_MODE, CLK_MODE__PacketPixel | PATH_EN);
else
MHL_MSC_Cmd_WRITE_STATE(MSC_STATUS_LINK_MODE, CLK_MODE__Normal | PATH_EN);
}
}
else {
if(is_PATH_EN) {
EP_DEV_DBG("CBUS Connection: Get PATH_EN = 0\n");
is_PATH_EN = 0;
if(is_PackedPixelMode)
MHL_MSC_Cmd_WRITE_STATE(MSC_STATUS_LINK_MODE, CLK_MODE__PacketPixel);
else
MHL_MSC_Cmd_WRITE_STATE(MSC_STATUS_LINK_MODE, CLK_MODE__Normal);
}
}
break;
}
#else // HDMI code
ConnectionState = HDMI_Tx_HTPLG((pEP956C_Registers->System_Configuration & EP956E_System_Configuration__HDMI_DIS)?1:0);
// Update is_Hot_Plug
is_Hot_Plug = (ConnectionState == HDMI_HOTPLUG_DETECT)? 1:0;
// Update is_Connected
if(is_Connected != ((ConnectionState)?1:0) ) {
if(++HP_ChangeCount >= 1) { // Accept continuous 1 error = 1*100 ms = 100 ms (Skip when low period < 100 ms)
HP_ChangeCount = 0;
is_Connected = ((ConnectionState)?1:0);
// When set to HDMI output, is_Connected == is_Hot_Plug
// When set to DVI output, is_Connected == EDID avaliable | is_Hot_Plug
}
}
else {
HP_ChangeCount = 0;
}
is_PATH_EN = 1;
#endif
// Update Hot-Plug
if(is_Hot_Plug) {
pEP956C_Registers->System_Status |= EP956E_System_Status__HTPLG;
}
else {
pEP956C_Registers->System_Status &= ~EP956E_System_Status__HTPLG;
}
// Powered Up and have Input
if(TX_State > TXS_Wait_Upstream) {
// Read HSO VSO POL information
EP956_Reg_Read(EP956_General_Control_4, Temp_Byte, 1);
Video_Params.HVPol = Temp_Byte[0] & (EP956_DE_Control__VSO_POL | EP956_DE_Control__HSO_POL);
}
return ConnectionState;
}
unsigned char EP932Controller_Task(void)
{
//DBG_printf(("EP932 EP932Controller_Task \r\n"));
// Read Interrupt Flag and updat the internal information
ReadInterruptFlags();
// Polling Hot-Plug every 80ms
if(HTP_TimeCount > 80/EP932C_TIMER_PERIOD) {
HTP_TimeCount = 0;
ConnectionState = HDMI_Tx_HTPLG();
HTPLG_NOW = ConnectionState;
if(HTPLG_LAST != HTPLG_NOW)
{
HTPLG_LAST = HTPLG_NOW;
if(HTPLG_NOW == 0)
{
DBG_printf(("Without HotPlug\r\n"));
EP_HDMI_DumpMessage();
}
else
{
DBG_printf(("Detect HotPlug \r\n"));
}
}
is_Hot_Plug = (ConnectionState == 1)? 1:0;
if(is_Connected != ((ConnectionState)?1:0) ) {
if(HP_ChangeCount++ >= 1) { // Accept continuous 1 error = 1*80 ms = 80 ms (Skip when low period < 80 ms)
HP_ChangeCount = 0;
is_Connected = ((ConnectionState)?1:0);
}
}
else {
HP_ChangeCount = 0;
}
if(is_Hot_Plug) {
pEP932C_Registers->System_Status |= EP932E_System_Status__HTPLG;
}
else {
pEP932C_Registers->System_Status &= ~EP932E_System_Status__HTPLG;
}
is_ReceiverSense = HDMI_Tx_RSEN(); // Only valid when TX is powered on
if(TX_State > TXS_Wait_Upstream) { // Powered Up and have Input
// Update RSEN
if(is_ReceiverSense) {
pEP932C_Registers->System_Status |= EP932E_System_Status__RSEN;
}
else {
pEP932C_Registers->System_Status &= ~EP932E_System_Status__RSEN;
}
RSEN_ChangeCount = 0;
// Read HSO VSO POL information
EP932_Reg_Read(EP932_General_Control_4, DDC_Data, 1);
Video_Params.HVPol = 0;//DDC_Data[0] & (EP932_DE_Control__VSO_POL | EP932_DE_Control__HSO_POL);
}
else {
if(RSEN_ChangeCount++ >= 8) { // Accept continuous 8 error = 8*80 ms = 640 ms (Skip when low period < 640 ms)
RSEN_ChangeCount = 0;
pEP932C_Registers->System_Status &= ~EP932E_System_Status__RSEN;
}
}
}
//
// Update EP932 Registers according to the System Process
//
//DBG_printf(("TX_State=%d \n",TX_State));
switch(TX_State) {
case TXS_Search_EDID:
if(is_Connected) {
if(ReadEDID_TimeCount > 200/EP932C_TIMER_PERIOD) {
unsigned char EDID_DDC_Status = 0;
// Confirm Hot-Plug (time-out after 1s)
if(!is_Hot_Plug) {
if(ReadEDID_TimeCount <= 1000/EP932C_TIMER_PERIOD) break;
DBG_printf(("WARNING: EDID detected without Hot-Plug for 1s\r\n"));
}
// Read EDID
DBG_printf(("\r\nState Transist: Read EDID -> [TXS_Wait_Upstream] 0x%x\r\n",pEP932C_Registers->System_Configuration));
memset(pEP932C_Registers->Readed_EDID, 0xFF, 256);
if(!(pEP932C_Registers->System_Configuration & EP932E_System_Configuration__FORCE_HDMI_CAP)){
EDID_DDC_Status = Downstream_Rx_read_EDID(pEP932C_Registers->Readed_EDID);
if(EDID_DDC_Status) {
//if(EDID_DDC_Status == EDID_STATUS_NoAct) {
if(EDID_DDC_Status != EDID_STATUS_ChecksumError) {
DBG_printf(("WARNING: EDID read failed 0x%02X\r\n", (int)EDID_DDC_Status));
if(ReadEDID_TimeCount <= 500/EP932C_TIMER_PERIOD) break;
}
}
}
ReadEDID_TimeCount = 0;
// Set Output
if(pEP932C_Registers->System_Configuration & EP932E_System_Configuration__FORCE_HDMI_CAP) {
is_Cap_HDMI = 1;
}
else {
is_Cap_HDMI = EDID_GetHDMICap(pEP932C_Registers->Readed_EDID);
}
if(is_Cap_HDMI) {
DBG_printf(("Support HDMI"));
// Default Capability
is_Cap_YCC444 = is_Cap_YCC422 = 0;
pEP932C_Registers->EDID_ASFreq = 0x07;
pEP932C_Registers->EDID_AChannel = 1;
pEP932C_Registers->EDID_VideoDataAddr = 0x00;
pEP932C_Registers->EDID_AudioDataAddr = 0x00;
pEP932C_Registers->EDID_SpeakerDataAddr = 0x00;
pEP932C_Registers->EDID_VendorDataAddr = 0x00;
if(!EDID_DDC_Status) {
if(pEP932C_Registers->Readed_EDID[131] & 0x20) { // Support YCC444
is_Cap_YCC444 = 1;
DBG_printf((" YCC444"));
}
if(pEP932C_Registers->Readed_EDID[131] & 0x10) { // Support YCC422
is_Cap_YCC422 = 1;
DBG_printf((" YCC422"));
}
DBG_printf(("\r\n"));
pEP932C_Registers->EDID_ASFreq = EDID_GetPCMFreqCap(pEP932C_Registers->Readed_EDID);
DBG_printf(("EDID ASFreq = 0x%02X\r\n",(int)pEP932C_Registers->EDID_ASFreq));
pEP932C_Registers->EDID_AChannel = EDID_GetPCMChannelCap(pEP932C_Registers->Readed_EDID);
DBG_printf(("EDID AChannel = 0x%02X\r\n",(int)pEP932C_Registers->EDID_AChannel));
pEP932C_Registers->EDID_VideoDataAddr = EDID_GetDataBlockAddr(pEP932C_Registers->Readed_EDID, 0x40);
pEP932C_Registers->EDID_AudioDataAddr = EDID_GetDataBlockAddr(pEP932C_Registers->Readed_EDID, 0x20);
pEP932C_Registers->EDID_SpeakerDataAddr = EDID_GetDataBlockAddr(pEP932C_Registers->Readed_EDID, 0x80);
pEP932C_Registers->EDID_VendorDataAddr = EDID_GetDataBlockAddr(pEP932C_Registers->Readed_EDID, 0x60);
}
}
else {
DBG_printf(("Support DVI RGB only\r\n"));
is_Cap_YCC444 = is_Cap_YCC422 = 0;
pEP932C_Registers->EDID_ASFreq = pEP932C_Registers->EDID_AChannel = 0;
}
if(is_Cap_HDMI)
pEP932C_Registers->EDID_Status = EDID_DDC_Status | EP932E_EDID_Status__HDMI;
else
pEP932C_Registers->EDID_Status = EDID_DDC_Status;
DBG_printf(("Support Max Audio Channel %d\r\n", (int)pEP932C_Registers->EDID_AChannel+1));
DBG_printf(("Support Audio Freq 0x%02X\r\n", (int)pEP932C_Registers->EDID_ASFreq));
// Report EDID Change
pEP932C_Registers->Interrupt_Flags |= EP932E_Interrupt_Flags__EDID_CHG;
if(EP932C_GenerateInt && (pEP932C_Registers->Interrupt_Enable & EP932E_Interrupt_Enable__EDID_CHG) ) EP932C_GenerateInt();
TX_State = TXS_Wait_Upstream;
}
}
else {
pEP932C_Registers->EDID_Status = EDID_STATUS_NoAct;
ReadEDID_TimeCount = 0;
}
break;
case TXS_Wait_Upstream:
if(!is_Connected) {
TXS_RollBack_Wait_Upstream();
TX_State = TXS_Search_EDID;
}
else if(!(pEP932C_Registers->Power_Control & (EP932E_Power_Control__PD_HDMI | EP932E_Power_Control__PD_TOT)) ) {
DBG_printf(("\r\nState Transist: Power Up -> [TXS_Stream]\r\n"));
// Power Up
HDMI_Tx_Power_Up();
TX_State = TXS_Stream;
}
else {
// Check Force HDMI bit
if(!is_Cap_HDMI) {
if(pEP932C_Registers->System_Configuration & EP932E_System_Configuration__FORCE_HDMI_CAP) {
TXS_RollBack_Wait_Upstream();
TX_State = TXS_Search_EDID;
}
}
}
break;
case TXS_Stream:
#if defined(Enable_HDCP)
if(!is_HDCP_Info_BKSV_Rdy && is_ReceiverSense && is_Hot_Plug) {
// Get HDCP Info
if(!Downstream_Rx_read_BKSV(pEP932C_Registers->HDCP_BKSV)) {
pEP932C_Registers->HDCP_Status = EP932E_HDCP_Status__BKSV;
}
pEP932C_Registers->HDCP_BCAPS3[0] = Downstream_Rx_BCAPS();
is_HDCP_Info_BKSV_Rdy = 1;
}
#endif
if(!is_Connected) {
TXS_RollBack_Stream();
TXS_RollBack_Wait_Upstream();
TX_State = TXS_Search_EDID;
}
else if(pEP932C_Registers->Power_Control & (EP932E_Power_Control__PD_HDMI | EP932E_Power_Control__PD_TOT) ) {
pEP932C_Registers->Power_Control |= EP932E_Power_Control__PD_HDMI;
TXS_RollBack_Stream();
TX_State = TXS_Wait_Upstream;
}
#if defined(Enable_HDCP)
else if(!((pEP932C_Registers->System_Configuration & EP932E_System_Configuration__HDCP_DIS) || is_VideoChanging) && is_ReceiverSense) {
// Enable mute for transmiter video and audio
HDMI_Tx_Mute_Enable();
DBG_printf(("\r\nState Transist: Start HDCP -> [TXS_HDCP]\r\n"));
TX_State = TXS_HDCP;
}
#endif
break;
#if defined(Enable_HDCP)
case TXS_HDCP:
if(!is_Connected || !is_Hot_Plug) {
TXS_RollBack_HDCP();
TXS_RollBack_Stream();
TXS_RollBack_Wait_Upstream();
TX_State = TXS_Search_EDID;
}
else if(pEP932C_Registers->Power_Control & (EP932E_Power_Control__PD_HDMI | EP932E_Power_Control__PD_TOT) ) {
pEP932C_Registers->Power_Control |= EP932E_Power_Control__PD_HDMI;
TXS_RollBack_HDCP();
TXS_RollBack_Stream();
TX_State = TXS_Wait_Upstream;
}
else if((pEP932C_Registers->System_Configuration & EP932E_System_Configuration__HDCP_DIS) || is_VideoChanging) {
TXS_RollBack_HDCP();
TX_State = TXS_Stream;
}
else {
pEP932C_Registers->HDCP_State = HDCP_Authentication_Task(is_ReceiverSense && is_Hot_Plug);
pEP932C_Registers->HDCP_Status = HDCP_Get_Status();
}
break;
#endif
}
//
// Update EP932 Registers for any time
//
// Mute Control
if( (pEP932C_Registers->System_Configuration & EP932E_System_Configuration__AUDIO_DIS) || (TX_State < TXS_Stream) || is_VideoChanging || is_AudioChanging ) {
HDMI_Tx_AMute_Enable();
}
else {
HDMI_Tx_AMute_Disable();
}
if( (pEP932C_Registers->System_Configuration & EP932E_System_Configuration__VIDEO_DIS) || (TX_State < TXS_Stream) || is_VideoChanging ) {
HDMI_Tx_VMute_Enable();
}
else {
HDMI_Tx_VMute_Disable();
}
// HDMI Mode
if(!is_Cap_HDMI || (pEP932C_Registers->System_Configuration & EP932E_System_Configuration__HDMI_DIS) ) {
HDMI_Tx_DVI(); // Set to DVI mode (The Info Frame and Audio Packets would not be send)
}
else {
HDMI_Tx_HDMI(); // Set to HDMI mode
}
++Process_Dispatch_ID;
if(Process_Dispatch_ID > 2) Process_Dispatch_ID = 0;
switch(Process_Dispatch_ID) {
case 0:
//
// Update Video Params
//
// Video Interface
Video_Params.Interface = pEP932C_Registers->Video_Interface[0];
// Video Timing
if(pEP932C_Registers->Video_Input_Format[0]) {
// Manul set the Video Timing
if(pEP932C_Registers->Video_Input_Format[0] < 128) {
Video_Params.VideoSettingIndex = pEP932C_Registers->Video_Input_Format[0];
}
else {
Video_Params.VideoSettingIndex = pEP932C_Registers->Video_Input_Format[0] - (128 - EP932_VDO_Settings_IT_Start);
}
}
// Select Sync Mode
Video_Params.SyncMode = (pEP932C_Registers->Video_Interface[1] & EP932E_Video_Interface_Setting_1__SYNC) >> 2;
// Select Color Space
switch(pEP932C_Registers->Video_Interface[1] & EP932E_Video_Interface_Setting_1__COLOR) {
default:
case EP932E_Video_Interface_Setting_1__COLOR__Auto:
switch(Video_Params.VideoSettingIndex) {
case 4: case 5: case 16: case 19: case 20: case 31: case 32:
case 33: case 34: case 39: case 40: case 41: case 46: case 47: // HD Timing
Video_Params.ColorSpace = COLORSPACE_709;
break;
default:
if(Video_Params.VideoSettingIndex && Video_Params.VideoSettingIndex < EP932_VDO_Settings_IT_Start) { // SD Timing
Video_Params.ColorSpace = COLORSPACE_601;
}
else { // IT Timing
Video_Params.ColorSpace = COLORSPACE_709;
}
}
break;
case EP932E_Video_Interface_Setting_1__COLOR__601:
Video_Params.ColorSpace = COLORSPACE_601;
break;
case EP932E_Video_Interface_Setting_1__COLOR__709:
Video_Params.ColorSpace = COLORSPACE_709;
break;
}
// Set Input Format
switch(pEP932C_Registers->Video_Interface[1] & EP932E_Video_Interface_Setting_1__VIN_FMT) {
default:
case EP932E_Video_Interface_Setting_1__VIN_FMT__RGB:
Video_Params.FormatIn = COLORFORMAT_RGB;
Video_Params.FormatOut = COLORFORMAT_RGB;
break;
case EP932E_Video_Interface_Setting_1__VIN_FMT__YCC444:
Video_Params.FormatIn = COLORFORMAT_YCC444;
if(is_Cap_YCC444) {
Video_Params.FormatOut = COLORFORMAT_YCC444;
}
else if(is_Cap_YCC422) {
Video_Params.FormatOut = COLORFORMAT_YCC422;
}
else {
Video_Params.FormatOut = COLORFORMAT_RGB;
}
break;
case EP932E_Video_Interface_Setting_1__VIN_FMT__YCC422:
Video_Params.FormatIn = COLORFORMAT_YCC422;
if(is_Cap_YCC444) {
Video_Params.FormatOut = COLORFORMAT_YCC444;
}
else if(is_Cap_YCC422) {
Video_Params.FormatOut = COLORFORMAT_YCC422;
}
else {
Video_Params.FormatOut = COLORFORMAT_RGB;
}
break;
}
//add by eric.lu
// Set Output Format
switch(pEP932C_Registers->Video_Output_Format) {
default:
case 0: // Auto, don't need change setting.
break;
case 1: // Force to YUV444 output format
Video_Params.FormatOut = COLORFORMAT_YCC444;
break;
case 2: // Force to YUV422 output format
Video_Params.FormatOut = COLORFORMAT_YCC422;
break;
case 3: // Force to RGB444 output format
Video_Params.FormatOut = COLORFORMAT_RGB;
break;
}
// end of add
// DVI mode settings overwrite
if(!is_Cap_HDMI || (pEP932C_Registers->System_Configuration & EP932E_System_Configuration__HDMI_DIS) ) {
Video_Params.FormatOut = COLORFORMAT_RGB;
}
// AFAR
Video_Params.AFARate = ((pEP932C_Registers->Video_Input_Format[1] & EP932E_Video_Input_Format_1__AFAR) >> 4) | 0x08;
// add by eric.lu
// SCAN
Video_Params.SCAN = (pEP932C_Registers->Video_Input_Format[1] & EP932E_Video_Input_Format_1__SCAN);
// end of add
// Video Change
if(memcmp(&Video_Params, &pEP932C_Registers->Video_Params_Backup, sizeof(VDO_PARAMS)) != 0) {
if(memcmp(&Video_Params, &pEP932C_Registers->Video_Params_Backup, 6) != 0) {
is_TimingChanging = 1;
}
// DBG_printf(("Video_Params new: interface 0x%02X, Vindex 0x%02X, HV 0x%02X, mode 0x%02X, Fin 0x%02X, Fout 0x%02X, color 0x%02X, AFAR 0x%02X\r\n",(int)Video_Params.Interface, (int)Video_Params.VideoSettingIndex, (int)Video_Params.HVPol ,(int)Video_Params.SyncMode, (int)Video_Params.FormatIn, (int)Video_Params.FormatOut, (int)Video_Params.ColorSpace, (int)Video_Params.AFARate));
// DBG_printf(("Video_Params old: interface 0x%02X, Vindex 0x%02X, HV 0x%02X, mode 0x%02X, Fin 0x%02X, Fout 0x%02X, color 0x%02X, AFAR 0x%02X\r\n",(int)pEP932C_Registers->Video_Params_Backup.Interface, (int)pEP932C_Registers->Video_Params_Backup.VideoSettingIndex, (int)pEP932C_Registers->Video_Params_Backup.HVPol ,(int)pEP932C_Registers->Video_Params_Backup.SyncMode, (int)pEP932C_Registers->Video_Params_Backup.FormatIn, (int)pEP932C_Registers->Video_Params_Backup.FormatOut, (int)pEP932C_Registers->Video_Params_Backup.ColorSpace, (int)pEP932C_Registers->Video_Params_Backup.AFARate));
pEP932C_Registers->Video_Params_Backup = Video_Params;
VideoChg_TimeCount = 0;
is_VideoChanging = 1;
}
// Video Change Debouncing
if(is_VideoChanging) {
if(VideoChg_TimeCount > AV_STABLE_TIME/EP932C_TIMER_PERIOD) {
DBG_printf(("### VideoChanging \r\n"));
if(is_TimingChanging)
EP932Controller_Reset();
HDMI_Tx_Video_Config(&Video_Params);
if(is_TimingChanging) {
if(!is_AudioChanging)
HDMI_Tx_Audio_Config(&Audio_Params);
}
is_TimingChanging = 0;
is_VideoChanging = 0;
VideoChg_TimeCount = 0;
// Report Video Change
pEP932C_Registers->Interrupt_Flags |= EP932E_Interrupt_Flags__VIDEO_CHG;
if(EP932C_GenerateInt && (pEP932C_Registers->Interrupt_Enable & EP932E_Interrupt_Enable__VIDEO_CHG) ) EP932C_GenerateInt();
}
}
break;
case 1:
//
// Update Audio Params
//
Audio_Params.Interface = pEP932C_Registers->Audio_Interface & 0x0F; // IIS, WS_M, WS_POL, SCK_POL
Audio_Params.VideoSettingIndex = Video_Params.VideoSettingIndex;
// Update Audio Channel Number
if(EP932_VDO_Settings[Video_Params.VideoSettingIndex].Pix_Freq_Type <= PIX_FREQ_27027KHz) {
Audio_Params.ChannelNumber = 1;
}
else {
Audio_Params.ChannelNumber = min(((pEP932C_Registers->Audio_Interface & 0x70) >> 4), pEP932C_Registers->EDID_AChannel);
}
// Update VFS
if(Audio_Params.VideoSettingIndex < EP932_VDO_Settings_IT_Start) {
// Pixel Clock Type shift (59.94/60)
Audio_Params.VFS = (pEP932C_Registers->Video_Input_Format[1] & EP932E_Video_Input_Format_1__VIF)? 1:0;
}
else {
Audio_Params.VFS = 0;
}
Audio_Params.NoCopyRight = (pEP932C_Registers->Audio_Input_Format & EP932E_Audio_Input_Format__NoCopyRight)?1:0;
// Write Frequency info (Use ADO_FREQ or Auto)
switch( pEP932C_Registers->Audio_Input_Format & EP932E_Audio_Input_Format__ADO_FREQ ) {
case EP932E_Audio_Input_Format__ADO_FREQ__32000Hz:
Audio_Params.InputFrequency = ADSFREQ_32000Hz;
// Disable Down Sample
Audio_Params.ADSRate = 0;
break;
default:
case EP932E_Audio_Input_Format__ADO_FREQ__44100Hz:
Audio_Params.InputFrequency = ADSFREQ_44100Hz;
// Disable Down Sample
Audio_Params.ADSRate = 0;
break;
case EP932E_Audio_Input_Format__ADO_FREQ__48000Hz:
Audio_Params.InputFrequency = ADSFREQ_48000Hz;
// Disable Down Sample
Audio_Params.ADSRate = 0;
break;
case EP932E_Audio_Input_Format__ADO_FREQ__88200Hz:
Audio_Params.InputFrequency = ADSFREQ_88200Hz;
if(pEP932C_Registers->EDID_ASFreq & 0x08) { // 88.2kHz
// Disable Down Sample
Audio_Params.ADSRate = 0;
}
else {
// Enable Down Sample 1/2
Audio_Params.ADSRate = 1;
}
break;
case EP932E_Audio_Input_Format__ADO_FREQ__96000Hz:
Audio_Params.InputFrequency = ADSFREQ_96000Hz;
if(pEP932C_Registers->EDID_ASFreq & 0x10) { // 96kHz
// Disable Down Sample
Audio_Params.ADSRate = 0;
}
else {
if(pEP932C_Registers->EDID_ASFreq & 0x04) { // 48kHz
// Enable Down Sample 1/2
Audio_Params.ADSRate = 1;
}
else {
// Enable Down Sample 1/3
Audio_Params.ADSRate = 2;
}
}
break;
case EP932E_Audio_Input_Format__ADO_FREQ__176400Hz:
Audio_Params.InputFrequency = ADSFREQ_176400Hz;
if(pEP932C_Registers->EDID_ASFreq & 0x20) { // 176kHz
// Disable Down Sample
Audio_Params.ADSRate = 0;
}
else {
if(pEP932C_Registers->EDID_ASFreq & 0x08) { // 88.2kHz
// Enable Down Sample 1/2
Audio_Params.ADSRate = 1;
}
else {
// Enable Down Sample 1/4
Audio_Params.ADSRate = 3;
}
}
break;
case EP932E_Audio_Input_Format__ADO_FREQ__192000Hz:
Audio_Params.InputFrequency = ADSFREQ_192000Hz;
if(pEP932C_Registers->EDID_ASFreq & 0x40) { // 192kHz
// Disable Down Sample
Audio_Params.ADSRate = 0;
}
else {
if(pEP932C_Registers->EDID_ASFreq & 0x10) { // 96kHz
// Enable Down Sample 1/2
Audio_Params.ADSRate = 1;
}
else {
// Enable Down Sample 1/4
Audio_Params.ADSRate = 3;
}
}
break;
}
// Audio Change
if(memcmp(&Audio_Params, &pEP932C_Registers->Audio_Params_Backup, sizeof(ADO_PARAMS)) != 0) {
pEP932C_Registers->Audio_Params_Backup = Audio_Params;
AudioChg_TimeCount = 0;
is_AudioChanging = 1;
}
// Audio Change Debouncing
if(is_AudioChanging) {
if(AudioChg_TimeCount > AV_STABLE_TIME/EP932C_TIMER_PERIOD) {
HDMI_Tx_Audio_Config(&Audio_Params);
is_AudioChanging = 0;
AudioChg_TimeCount = 0;
// Report Audio Change
pEP932C_Registers->Interrupt_Flags |= EP932E_Interrupt_Flags__AUDIO_CHG;
if(EP932C_GenerateInt && (pEP932C_Registers->Interrupt_Enable & EP932E_Interrupt_Enable__AUDIO_CHG) ) EP932C_GenerateInt();
}
}
break;
case 2:
// Update TREG
if(pEP932C_Registers->Analog_Test_Control != Backup_Analog_Test_Control) {
Backup_Analog_Test_Control = pEP932C_Registers->Analog_Test_Control;
if(pEP932C_Registers->Analog_Test_Control & 0x01) {
EP932_Reg_Set_Bit(EP932_Color_Space_Control, 0x01);
}
else {
EP932_Reg_Clear_Bit(EP932_Color_Space_Control, 0x01);
}
if(pEP932C_Registers->Analog_Test_Control & 0x02) {
EP932_Reg_Set_Bit(EP932_Color_Space_Control, 0x02);
}
else {
EP932_Reg_Clear_Bit(EP932_Color_Space_Control, 0x02);
}
}
break;
}
// Return the status
if(pEP932C_Registers->Power_Control & (EP932E_Power_Control__PD_HDMI | EP932E_Power_Control__PD_TOT)) {
return EP932C_TASK_Idle;
}
else {
return EP932C_TASK_Pending;
}
}
unsigned int EP932_HotPlugMonitor(void)
{
is_Hot_Plug = HDMI_Tx_HTPLG();
return is_Hot_Plug;
}
