qipp
2025-09-16 e7ac407a6aa40e94a34a772dee14e8d5fb55c45b
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#include "global.h"
#include <sru.h>
 
asm("#include <def21489.h>");
    
void clearDAIpins(void)
{
//------------------------------------------------------------------------
//  Tie the pin buffer inputs LOW for all DAI pins.  Even though
//    these pins are inputs to the SHARC, tying unused pin buffer inputs
//    LOW is "good coding style" to eliminate the possibility of
//    termination artifacts internal to the IC.  Note that signal
//    integrity is degraded only with a few specific SRU combinations.
//    In practice, this occurs VERY rarely, and these connections are
//    typically unnecessary.  This is GROUP D
    SRU(LOW, DAI_PB01_I);
    SRU(LOW, DAI_PB02_I);
    SRU(LOW, DAI_PB03_I);
    SRU(LOW, DAI_PB04_I);
    SRU(LOW, DAI_PB05_I);
    SRU(LOW, DAI_PB06_I);
    SRU(LOW, DAI_PB07_I);
    SRU(LOW, DAI_PB08_I);
    SRU(LOW, DAI_PB09_I);
    SRU(LOW, DAI_PB10_I);
    SRU(LOW, DAI_PB11_I);
    SRU(LOW, DAI_PB12_I);
    SRU(LOW, DAI_PB13_I);
    SRU(LOW, DAI_PB14_I);
    SRU(LOW, DAI_PB15_I);
    SRU(LOW, DAI_PB16_I);
    SRU(LOW, DAI_PB17_I);
    SRU(LOW, DAI_PB18_I);
    SRU(LOW, DAI_PB19_I);
    SRU(LOW, DAI_PB20_I);
 
//------------------------------------------------------------------------
//  Tie the pin buffer enable inputs LOW for all DAI pins so
//  that they are always input pins.  This is GROUP F.
    SRU(LOW, PBEN01_I);
    SRU(LOW, PBEN02_I);
    SRU(LOW, PBEN03_I);
    SRU(LOW, PBEN04_I);
    SRU(LOW, PBEN05_I);
    SRU(LOW, PBEN06_I);
    SRU(LOW, PBEN07_I);
    SRU(LOW, PBEN08_I);
    SRU(LOW, PBEN09_I);
    SRU(LOW, PBEN10_I);
    SRU(LOW, PBEN11_I);
    SRU(LOW, PBEN12_I);
    SRU(LOW, PBEN13_I);
    SRU(LOW, PBEN14_I);
    SRU(LOW, PBEN15_I);
    SRU(LOW, PBEN16_I);
    SRU(LOW, PBEN17_I);
    SRU(LOW, PBEN18_I);
    SRU(LOW, PBEN19_I);
    SRU(LOW, PBEN20_I);
}
 
 
 
void InitDAI()
{
    clearDAIpins();
}
 
void aud_clk_generate(void)
     SRU(HIGH, PBEN18_I);
     SRU(DAI_PB03_O,DAI_PB18_I); //MCLK 
     
     SRU(DAI_PB03_O,PCG_EXTA_I);
 
     SRU(PCG_CLKA_O,PCG_EXTB_I);
     
     SRU(HIGH, PBEN16_I); //clk
     SRU(PCG_FSB_O,DAI_PB16_I);
 
     SRU(HIGH, PBEN14_I); //fs
     SRU(PCG_FSA_O,DAI_PB14_I);
}
 
 
void DAI_map(void)
{
    //analog in
    SRU(DAI_PB01_O , SPORT1_DA_I);    
    SRU(DAI_PB19_O , SPORT1_DB_I);
    
    
    //---dante in --
    SRU(DAI_PB13_O, SPORT3_DA_I);   
    SRU(DAI_PB07_O, SPORT3_DB_I);
    
    //usb
}
 
 
void USB_pinmap(int dual_dsp, int dsp_index)
{
    extern int usb_master;
    if(usb_master){
        SRU(DAI_PB06_O,SPORT4_CLK_I);
        SRU(DAI_PB05_O,SPORT4_FS_I);
        SRU(DAI_PB06_O,SPORT5_CLK_I);
        SRU(DAI_PB05_O,SPORT5_FS_I);
        
        if(dsp_index == 0 ){
            if(dual_dsp == 0){
                SRU(DAI_PB09_O, SPORT5_DA_I);//input
        
                SRU(HIGH, PBEN17_I);
                SRU(SPORT4_DA_O, DAI_PB17_I); 
                
                //usb audio
                SRU(HIGH, PBEN06_I);
                SRU(HIGH, PBEN05_I);
                SRU(PCG_CLKC_O,DAI_PB06_I);
                SRU(PCG_FSC_O,DAI_PB05_I); 
                SRU(DAI_PB18_O,PCG_EXTC_I); //MCLK 
            }
            else{
                SRU(DAI_PB09_O, SPORT5_DA_I); //do , dsp input
            
                SRU(HIGH, PBEN17_I);
                SRU(SPORT6_DA_O, DAI_PB17_I); //di, dsp output tdm
            }
        }
        else{
            SRU(DAI_PB09_O, SPORT7_DA_I);//tdm input
            //
            SRU(HIGH, PBEN17_I);
            SRU(SPORT4_DA_O, DAI_PB17_I); //i2s output
        }
        
        return;    
    }
    
    SRU(HIGH, PBEN02_I);
    SRU(HIGH, PBEN11_I);
    SRU(PCG_CLKC_O,DAI_PB02_I);
    SRU(PCG_FSC_O,DAI_PB11_I); 
    SRU(DAI_PB18_O,PCG_EXTC_I); //MCLK 
    
    if(dual_dsp ){
        if(dsp_index ==0){
    
            SRU(HIGH, PBEN17_I);
            SRU(SPORT6_DA_O, DAI_PB17_I); //di, dsp output tdm
            
            //usb
            SRU(DAI_PB06_O,SRC0_CLK_IP_I);
            SRU(DAI_PB05_O,SRC0_FS_IP_I);    
             SRU(DAI_PB09_O,SRC0_DAT_IP_I);
 
            SRU(DAI_PB02_O,SRC0_CLK_OP_I);
            SRU(DAI_PB02_O,SPORT5_CLK_I);
            SRU(DAI_PB11_O,SRC0_FS_OP_I);
            SRU(DAI_PB11_O,SPORT5_FS_I);
    
            SRU(SRC0_DAT_OP_O,SPORT5_DA_I);
        }
        if(dsp_index == 1){
            SRU(DAI_PB09_O, SPORT7_DA_I);//tdm input
            
            //usb
            SRU(DAI_PB11_O,SPORT5_FS_I);
            SRU(DAI_PB02_O,SPORT5_CLK_I);
            
            SRU(DAI_PB02_O,SPORT4_CLK_I);
            SRU(DAI_PB11_O,SPORT4_FS_I);
            SRU(DAI_PB02_O,SRC1_CLK_IP_I);
            SRU(DAI_PB11_O,SRC1_FS_IP_I);
             SRU(SPORT4_DA_O,SRC1_DAT_IP_I);
     
             SRU(DAI_PB06_O,SRC1_CLK_OP_I);
            SRU(DAI_PB05_O,SRC1_FS_OP_I);
    
            SRU(HIGH, PBEN17_I);
            SRU(SRC1_DAT_OP_O,DAI_PB17_I);
        }
    }
    else{
        //sport 4 for usb output, sport 5 for usb input.
        SRU(DAI_PB06_O,SRC0_CLK_IP_I);
        SRU(DAI_PB05_O,SRC0_FS_IP_I);    
         SRU(DAI_PB09_O,SRC0_DAT_IP_I);
 
        SRU(DAI_PB02_O,SRC0_CLK_OP_I);
        SRU(DAI_PB02_O,SPORT5_CLK_I);
        SRU(DAI_PB11_O,SRC0_FS_OP_I);
        SRU(DAI_PB11_O,SPORT5_FS_I);
    
        SRU(SRC0_DAT_OP_O,SPORT5_DA_I);
    
        //usb output.
        SRU(DAI_PB02_O,SPORT4_CLK_I);
        SRU(DAI_PB11_O,SPORT4_FS_I);
        SRU(DAI_PB02_O,SRC1_CLK_IP_I);
        SRU(DAI_PB11_O,SRC1_FS_IP_I);
         SRU(SPORT4_DA_O,SRC1_DAT_IP_I);
     
         SRU(DAI_PB06_O,SRC1_CLK_OP_I);
        SRU(DAI_PB05_O,SRC1_FS_OP_I);
    
        SRU(HIGH, PBEN17_I);
        SRU(SRC1_DAT_OP_O,DAI_PB17_I);
            
    }
}
 
void AudioConfigRule(int dual_dsp, int dsp_index, int extern_clock)
{
    SRU(DAI_PB16_O, SPORT0_CLK_I); 
    SRU(DAI_PB16_O, SPORT1_CLK_I);   
    SRU(DAI_PB16_O, SPORT2_CLK_I);  
     SRU(DAI_PB16_O, SPORT3_CLK_I);     
    SRU(DAI_PB16_O, SPORT6_CLK_I);
    SRU(DAI_PB16_O, SPORT7_CLK_I);
 
     SRU(DAI_PB14_O, SPORT0_FS_I); 
    SRU(DAI_PB14_O, SPORT1_FS_I);      
    SRU(DAI_PB14_O, SPORT2_FS_I);   
    SRU(DAI_PB14_O, SPORT3_FS_I);    
    SRU(DAI_PB14_O, SPORT6_FS_I);
    SRU(DAI_PB14_O, SPORT7_FS_I);
 
    //input
     SRU(DAI_PB07_O, SPORT1_DA_I);    
    SRU(DAI_PB13_O, SPORT1_DB_I);
    SRU(DAI_PB19_O, SPORT3_DA_I);   
    SRU(DAI_PB01_O, SPORT3_DB_I);
    
    
    //output
    SRU(HIGH, PBEN10_I);
    SRU(SPORT0_DA_O, DAI_PB10_I);    
    SRU(HIGH, PBEN20_I);
    SRU(SPORT0_DB_O, DAI_PB20_I);   
    SRU(HIGH, PBEN08_I);
    SRU(SPORT2_DA_O, DAI_PB08_I);    
    SRU(HIGH, PBEN04_I);
    SRU(SPORT2_DB_O, DAI_PB04_I);
        
    
    if(dsp_index ==1){
        DAI_map();
    }
            
    if(dsp_index ==0 && extern_clock ==0 ){
        aud_clk_generate();
    }  
    
    USB_pinmap(dual_dsp , dsp_index);    
}
 
/***************************NX****************************/
 
void UsbConfigNx(int dual_dsp, int dsp_index, int master)
{
    if(master){
        //USB
         SRU(DAI_PB12_O, SPORT4_CLK_I);  
        SRU(DAI_PB12_O, SPORT5_CLK_I); 
 
        SRU(DAI_PB15_O, SPORT4_FS_I);     
        SRU(DAI_PB15_O, SPORT5_FS_I); 
    
        if(dsp_index == 0){
            //usb input
            SRU(DAI_PB11_O, SPORT5_DA_I);
            
            //USB AUTOMIXER AEC
            if(dual_dsp){
                SRU(HIGH, PBEN05_I);
                SRU(SPORT6_DA_O, DAI_PB05_I);
            }
            else{
                //usb output
                   SRU(HIGH, PBEN05_I);
                   SRU(SPORT4_DA_O, DAI_PB05_I);
            }
        
            //USB CLOCK
            SRU(HIGH, PBEN12_I);
            SRU(HIGH, PBEN15_I);
            SRU(PCG_CLKC_O,DAI_PB12_I);
            SRU(PCG_FSC_O,DAI_PB15_I); 
            SRU(DAI_PB06_O,PCG_EXTC_I);//MCLK 
        }
        else{
            //usb output
               SRU(HIGH, PBEN11_I);
               SRU(SPORT4_DA_O, DAI_PB11_I);
        
            //USB AUTOMIXER AEC
            SRU(DAI_PB05_O, SPORT7_DA_I);     
        }    
    }
    else{
        if(dsp_index == 0){
            //USB AUTOMIXER AEC
            if(dual_dsp){
                SRU(HIGH, PBEN05_I);
                SRU(SPORT6_DA_O, DAI_PB05_I);
 
                //usb
                SRU(DAI_PB12_O,SRC0_CLK_IP_I);
                SRU(DAI_PB15_O,SRC0_FS_IP_I);    
                 SRU(DAI_PB11_O,SRC0_DAT_IP_I);
 
                SRU(DAI_PB18_O,SRC0_CLK_OP_I);
                SRU(DAI_PB18_O,SPORT5_CLK_I);
                SRU(DAI_PB04_O,SRC0_FS_OP_I);
                SRU(DAI_PB04_O,SPORT5_FS_I);
    
                SRU(SRC0_DAT_OP_O,SPORT5_DA_I);    
            }
            else{
                //sport 4 for usb output, sport 5 for usb input.
                SRU(DAI_PB12_O,SRC0_CLK_IP_I);
                SRU(DAI_PB15_O,SRC0_FS_IP_I);    
                 SRU(DAI_PB11_O,SRC0_DAT_IP_I);
 
                SRU(DAI_PB18_O,SRC0_CLK_OP_I);
                SRU(DAI_PB18_O,SPORT5_CLK_I);
                SRU(DAI_PB04_O,SRC0_FS_OP_I);
                SRU(DAI_PB04_O,SPORT5_FS_I);
    
                SRU(SRC0_DAT_OP_O,SPORT5_DA_I);
    
                //usb output.
                SRU(DAI_PB18_O,SPORT4_CLK_I);
                SRU(DAI_PB04_O,SPORT4_FS_I);
                SRU(DAI_PB18_O,SRC1_CLK_IP_I);
                SRU(DAI_PB04_O,SRC1_FS_IP_I);
                 SRU(SPORT4_DA_O,SRC1_DAT_IP_I);
     
                 SRU(DAI_PB12_O,SRC1_CLK_OP_I);
                SRU(DAI_PB15_O,SRC1_FS_OP_I);
    
                SRU(HIGH, PBEN05_I);
                SRU(SRC1_DAT_OP_O,DAI_PB05_I);
            }    
        }
        else{
            SRU(DAI_PB05_O, SPORT7_DA_I);//tdm input
            
            //usb
            SRU(DAI_PB04_O,SPORT5_FS_I);
            SRU(DAI_PB18_O,SPORT5_CLK_I);
        
            SRU(DAI_PB18_O,SPORT4_CLK_I);
            SRU(DAI_PB04_O,SPORT4_FS_I);
            SRU(DAI_PB18_O,SRC1_CLK_IP_I);
            SRU(DAI_PB04_O,SRC1_FS_IP_I);
             SRU(SPORT4_DA_O,SRC1_DAT_IP_I);
    
             SRU(DAI_PB12_O,SRC1_CLK_OP_I);
            SRU(DAI_PB15_O,SRC1_FS_OP_I);
 
            SRU(HIGH, PBEN11_I);
            SRU(SRC1_DAT_OP_O,DAI_PB11_I);    
        }
        
        //USB CLOCK
        SRU(HIGH, PBEN18_I);
        SRU(HIGH, PBEN04_I);
        SRU(PCG_CLKC_O,DAI_PB18_I);
        SRU(PCG_FSC_O,DAI_PB04_I); 
        SRU(DAI_PB06_O,PCG_EXTC_I);//MCLK
    }    
}
 
void AudioConfigNx(int dual_dsp, int dsp_index, int usb_master)
{
/***************AUDIO ROUTE****************/
    //ANALOG
    SRU(DAI_PB19_O, SPORT0_CLK_I); 
    SRU(DAI_PB19_O, SPORT1_CLK_I); 
    SRU(DAI_PB19_O, SPORT6_CLK_I); 
    SRU(DAI_PB19_O, SPORT7_CLK_I); 
    
       SRU(DAI_PB20_O, SPORT0_FS_I); 
    SRU(DAI_PB20_O, SPORT1_FS_I); 
    SRU(DAI_PB20_O, SPORT6_FS_I); 
    SRU(DAI_PB20_O, SPORT7_FS_I);
    
    
     //DANTE
    SRU(DAI_PB13_O, SPORT2_CLK_I);  
      SRU(DAI_PB13_O, SPORT3_CLK_I);  
     
    SRU(DAI_PB03_O, SPORT2_FS_I);   
    SRU(DAI_PB03_O, SPORT3_FS_I);
    
    //DATA
    if(dsp_index == 0){
        //analog input
         SRU(DAI_PB17_O, SPORT1_DA_I);    
        SRU(DAI_PB16_O, SPORT1_DB_I);
    
        //analog output
        SRU(HIGH, PBEN09_I);
        SRU(SPORT0_DA_O, DAI_PB09_I);    
        SRU(HIGH, PBEN14_I);
        SRU(SPORT0_DB_O, DAI_PB14_I); 
 
        //dante input
        SRU(DAI_PB02_O, SPORT3_DA_I);   
        SRU(DAI_PB01_O, SPORT3_DB_I);
  
          //dante output
        SRU(HIGH, PBEN08_I);
        SRU(SPORT2_DA_O, DAI_PB08_I);    
        SRU(HIGH, PBEN10_I);
        SRU(SPORT2_DB_O, DAI_PB10_I); 
    }
    else{
        //analog input
         SRU(DAI_PB09_O, SPORT1_DA_I);    
        SRU(DAI_PB14_O, SPORT1_DB_I);
    
        //analog output
        SRU(HIGH, PBEN17_I);
        SRU(SPORT0_DA_O, DAI_PB17_I);    
        SRU(HIGH, PBEN16_I);
        SRU(SPORT0_DB_O, DAI_PB16_I); 
 
        //dante input
        SRU(DAI_PB08_O, SPORT3_DA_I);   
        SRU(DAI_PB10_O, SPORT3_DB_I);
  
          //dante output
        SRU(HIGH, PBEN02_I);
        SRU(SPORT2_DA_O, DAI_PB02_I);    
        SRU(HIGH, PBEN01_I);
        SRU(SPORT2_DB_O, DAI_PB01_I);
    }
/******************************************/
    
/******************CLOCK*******************/
    if(dsp_index == 0){
        //ADC CLOCK
        SRU(DAI_PB06_O,PCG_EXTA_I);//MCLK 
        SRU(PCG_CLKA_O,PCG_EXTB_I);
        SRU(HIGH, PBEN19_I); //clk
        SRU(PCG_FSB_O,DAI_PB19_I);
        SRU(HIGH, PBEN20_I); //fs
        SRU(PCG_FSA_O,DAI_PB20_I);
    }  
/*******************************************/ 
 
/**********************USB**********************/
    UsbConfigNx(dual_dsp, dsp_index, usb_master);
/***********************************************/      
}
 
 
 
void InitSRC(void)
{
 
  //============================================================
    //
    // Configure SRC Control Register (SRCCTL0).
    //
    //    SRC1_IN_I2S : SRC1 Serial Input Format= I2S mode
    //    SRC1_OUT_I2S: SRC1 Serial Output Format= I2S mode
    //    SRC1_OUT_24 : Output Word Length= 24 bits  
    //------------------------------------------------------------
    *pSRCCTL0 = SRC0_IN_I2S | SRC0_OUT_I2S | SRC0_OUT_24 | SRC1_IN_I2S | SRC1_OUT_I2S | SRC1_OUT_24;
    //*pSRCCTL0 = SRC0_IN_LJ | SRC0_OUT_LJ | SRC0_OUT_24 |SRC1_IN_LJ | SRC1_OUT_LJ | SRC1_OUT_24;
    // Enable SRC1 in a different cycle than setting the configuration
    *pSRCCTL0 |= SRC0_ENABLE|SRC1_ENABLE;
//*pSRCCTL0 = SRC0_SMODEIN0 | SRC0_SMODEOUT0 | SRC0_ENABLE ;
}