srvchn.c

本程序为ST公司开发的源代码

  if (OIF_EXT_CLOCK_ON)
  {
  //MISC1.field.gpio_oni2s = 0;    /* BB041014 */

    oif_freq = OIF_EXT_CLOCK_FREQ;
    if (oif_freq > 0x10)
    {
      oif_freq = 0x10;
    }
  }
  else
#endif
  {
    //MISC1.field.gpio_oni2s = 1;    /* BB041014 */

    oif_freq = 0x10;
  }

  /* select OIF disk speed */
  switch (oif_ttm_speed & DISC_MODE)
  {
  case CLV:
    switch (oif_ttm_speed & DISC_SPEED)
    {
    case CLV_1X:
      oif_speed = 0;
      break;
    case CLV_2X:
      oif_speed = 1;
      break;
    //case CLV_4X:
    default:
      oif_speed = 2;
      break;
    }
    break;
  //case CAV:
  default:
    oif_speed = 3;
    break;
  }

  /* select OIF I2S frame length */
  oif_frm_len = OIF_I2S_FRAME_LEN;
  if (oif_frm_len > OIF_I2S_FRAME_LEN_32)
  {
    oif_frm_len = OIF_I2S_FRAME_LEN_16;
  }

  oif_mode.analog = (uint8)(OIF_ANALOG_ON ? 1 : 0);
  oif_mode.spdif = (uint8)((OIF_SPDIF_ON && spdif_out_ratio[oif_freq][oif_speed]) ? 1 : 0);
  oif_mode.i2s = (uint8)((OIF_I2S_ON && i2s_out_ratio[oif_freq][oif_speed][oif_frm_len]) ? 1 : 0);
  if (0 == oif_mode.i2s)  /* BB041007f */
  {
    oif_frm_len = OIF_I2S_FRAME_LEN_16;
  }

  if (0 != oif_mode.spdif)
  {
    GCR1.field.spdif_sel = 1; // 1->SPDIF is Selected
    OIF_SELECT_SPDIF();
  }
  else
  {
    GCR1.field.spdif_sel = 0; // 0->I2S is Selected
    OIF_SELECT_I2S();
  }

  OIF_SOFT_RST.all = 0xFF;    // BBTODO check if needed

  ECC_MODE.field.acon = OIF_AUDIO_CONCEALMENT;

  /* turn off all */
  OIF_AP_MUTE_CTRL.all = MUTE_I2S_OFF | MUTE_I2S_FORCE | MUTE_SPDIF_OFF | MUTE_SPDIF_FORCE;

  if (OIF_AUDIO_MODE)
  {
    OIF_AP_CONTROL_PART_1.all = 0xA0;
    //OIF_AP_CONTROL_PART_1.field.current_data_shift = 0x00;
    //OIF_AP_CONTROL_PART_1.field.data_signed_ext = 1;
    //OIF_AP_CONTROL_PART_1.field.audio_enable = 1;
  }
  else
  {
    OIF_AP_CONTROL_PART_1.all = 0x20;
    //OIF_AP_CONTROL_PART_1.field.current_data_shift = 0x00;
    //OIF_AP_CONTROL_PART_1.field.data_signed_ext = 1;
    //OIF_AP_CONTROL_PART_1.field.audio_enable = 0;
  }

  OIF_AP_CONTROL_PART_2.all = 0x98;
  //OIF_AP_CONTROL_PART_2.field.target_data_shift = 0x18;
  //OIF_AP_CONTROL_PART_2.field.enable_deemphasis = 0;
  //OIF_AP_CONTROL_PART_2.field.enable_equalizer = 0;
  //OIF_AP_CONTROL_PART_2.field.enable_sample_req = 1;

  OIF_SPDIF_CONTROL.field.i2s_spdif_mux = 1;

  OIF_I2S_SPDIF_REG_1.mux_1_field.i2s_data_out_format = OIF_I2S_SWAPPING_MODE(oif_frm_len);

  OIF_I2S_SPDIF_REG_0.mux_1_field.slsi_pi2s = OIF_I2S_SLSI;
  OIF_I2S_SPDIF_REG_0.mux_1_field.sclk_level = (uint8)(OIF_I2S_SCLK_LEV ? 0 : 1); /* BB040929b */
  OIF_I2S_SPDIF_REG_0.mux_1_field.wclk_level = (uint8)(OIF_I2S_WCLK_LEV ? 0 : 1); /* BB040929b */
  OIF_I2S_SPDIF_REG_0.mux_1_field.c2flags_level = OIF_I2S_C2FL_LEV;
  OIF_I2S_SPDIF_REG_0.mux_1_field.sdata_level = OIF_I2S_DATA_LEV;
  OIF_I2S_SPDIF_REG_0.mux_1_field.framelength = oif_frm_len;

  OIF_I2S_SPDIF_REG_2.all = 0x70;
  //OIF_I2S_SPDIF_REG_2.mux_1_field.ad_mute = 1;
  //OIF_I2S_SPDIF_REG_2.mux_1_field.parallel_mode = 1;
  //OIF_I2S_SPDIF_REG_2.mux_1_field.ad_mclk_polarity = 1;

  OIF_SPDIF_CONTROL.field.i2s_spdif_mux = 0;

  OIF_SPDIF_CONTROL.field.spdif_data_mode = 1;
  OIF_SPDIF_CONTROL.field.validity_mux = 1;


//BB041022b  OIF_I2S_SPDIF_REG_2.mux_0_field.extern_clock_mux = OIF_EXT_CLOCK_ON;

  OIF_I2S_SPDIF_REG_2.mux_0_field.i2s_ratio = i2s_out_ratio[oif_freq][oif_speed][oif_frm_len];
  if (OIF_I2S_SPDIF_REG_2.mux_0_field.i2s_ratio)
  {
    switch (oif_frm_len)
    {
    case OIF_I2S_FRAME_LEN_32:
      OIF_I2S_SPDIF_REG_2.mux_0_field.word_ratio = 3;
      break;
    case OIF_I2S_FRAME_LEN_24:
      OIF_I2S_SPDIF_REG_2.mux_0_field.word_ratio = 2;
      break;
    //case OIF_I2S_FRAME_LEN_16:
    default:
      OIF_I2S_SPDIF_REG_2.mux_0_field.word_ratio = 1;
      break;
    }
  }
  else
  {
    OIF_I2S_SPDIF_REG_2.mux_0_field.word_ratio = 0;
  }


  OIF_I2S_SPDIF_REG_1.mux_0_field.invert_clock = 0;
  if (OIF_EXT_CLOCK_ON)
  {
    OIF_I2S_SPDIF_REG_1.mux_0_field.input_clock_selection = 3;
  }
  else
  {
    OIF_I2S_SPDIF_REG_1.mux_0_field.input_clock_selection = 2;
  }

  OIF_I2S_SPDIF_REG_1.mux_0_field.spdif_ratio = spdif_out_ratio[oif_freq][oif_speed];

  if ((oif_ttm_speed & DISC_MODE) == CLV)
  {
    OIF_AP_STATUS.field.underflow_mode = 1;
  }
  else
  {
    OIF_AP_STATUS.field.underflow_mode = 3;
  }
/*
  OIF_AP_STATUS.field.en_int_undf         = 1;
  OIF_AP_STATUS.field.en_int_short_frame  = 1;
  OIF_AP_STATUS.field.en_int_long_frame   = 1;
*/
  oif_mute = MUTE_I2S_FORCE | MUTE_SPDIF_FORCE;

  if (oif_mode.spdif)
  {
    switch (OIF_SPDIF_MUTE_MODE)
    {
    case CIS_MUTE_MODE_HZ:
      oif_mute |= MUTE_SPDIF_MODE_HZ;
      break;
    case CIS_MUTE_MODE_LOW:
      oif_mute |= MUTE_SPDIF_MODE_LOW;
      break;
    default:
      oif_mute |= MUTE_SPDIF_MODE_DATA;
      break;
    }
  }
  else
  {
    oif_mute |= MUTE_SPDIF_OFF;
  }

  if (oif_mode.i2s)
  {
    switch (OIF_I2S_MUTE_MODE)
    {
    case CIS_MUTE_MODE_HZ:
      oif_mute |= MUTE_I2S_MODE_HZ;
      break;
    case CIS_MUTE_MODE_LOW:
      oif_mute |= MUTE_I2S_MODE_LOW;
      break;
    default:
      oif_mute |= MUTE_I2S_MODE_DATA;
      break;
    }
  }
  else
  {
    oif_mute |= MUTE_I2S_OFF;
  }

  OIF_SP_CTRL.field.mute_boundary_mode = 1;// Mute On Sector Boundary [MM] 05/09/06
  OIF_AP_MUTE_CTRL.all = oif_mute;


  if (!oif_mode.audio_initialized)
  {
    oif_mode.audio_initialized = 1;   // BBTODO check for I2S workaround
  }

  OIF_SOFT_RST.all = 0x00;    // BBTODO check if needed

  DISABLE_INTERRUPTS();
  if (oif_mute_control.audio_on)
  {
    audio_on();
  }
  ENABLE_INTERRUPTS();
}


/******************************************************************************/
/* Function:  oif_init                                                        */
/*                                                                            */
/*! \brief    Initialization of output interface(s)
 *  \param    void
 *  \return   void
 *  \remark   Sets OIF block into reset, calls CDTEXT_init and audio_init
 *            enables oif interrupt
 */
/******************************************************************************/

void oif_init(void)
{
  OIF_SOFT_RST.all = 0x00;
  CD_TEXT_CONTROL.all = 0x72;

  OIF_SP_CTRL.field.en_shockproof = 1;   // To enable buffer Data
  OIF_SP_CTRL.field.monitor_buffer = 1;

  oif_requested_speed = CLV | CLV_1X;
  oif_ttm_speed = CLV | CLV_1X;

  initialize_audio();
  OSAL_isr_install(OSAL_ISR_OIF, 0x0f, oif_isr_irq);
}
#else // APM_PICKUP

#if 0
void oif_init_keyboard(void)
{
  GCR1.field.spdif_sel = 0; // 1->SPDIF is Selected
                            // 0->I2S is selected
  OIF_SOFT_RST.all = 0xFF;

  OIF_SP_CTRL.field.en_shockproof = 0; // To enable Raw Data Output
//OIF_SP_CTRL.field.en_shockproof = 1; // To enable buffer Data

  OIF_SP_CTRL.field.monitor_buffer = 1;
  OIF_AP_CONTROL_PART_2.field.enable_sample_req = 1;

  OIF_AP_CONTROL_PART_1.field.data_signed_ext = 1;

  OIF_I2S_SPDIF_REG_1.mux_0_field.spdif_ratio = 0x0C;
  OIF_I2S_SPDIF_REG_1.mux_0_field.input_clock_selection = 2;
  OIF_I2S_SPDIF_REG_1.mux_0_field.invert_clock = 1;

  OIF_SPDIF_CONTROL.field.i2s_spdif_mux = 1;
  OIF_I2S_SPDIF_REG_2.mux_1_field.parallel_mode = 1;
  OIF_I2S_SPDIF_REG_2.mux_1_field.ad_mute = 0;

  OIF_I2S_SPDIF_REG_0.mux_1_field.slsi_pi2s = 1;
  OIF_I2S_SPDIF_REG_0.mux_1_field.framelength = 1; // 24 bit
  //OIF_I2S_SPDIF_REG_0.mux_1_field.framelength = 0; // 16 bit
  OIF_I2S_SPDIF_REG_0.mux_1_field.sclk_level = 1; // 24 bit
  OIF_I2S_SPDIF_REG_0.mux_1_field.wclk_level = 1; // 24 bit
  OIF_I2S_SPDIF_REG_0.mux_1_field.c2flags_level = 0; // 24 bit
  OIF_I2S_SPDIF_REG_0.mux_1_field.sdata_level = 0; // 24 bit


  OIF_I2S_SPDIF_REG_1.mux_1_field.i2s_data_out_format = 5;

  OIF_SPDIF_CONTROL.field.i2s_spdif_mux = 0;

  OIF_I2S_SPDIF_REG_2.mux_0_field.i2s_ratio = 0x10; //24 bit Keyboard
  OIF_I2S_SPDIF_REG_2.mux_0_field.word_ratio = 2;    // 24 bit Keyboard;
  OIF_I2S_SPDIF_REG_2.mux_0_field.extern_clock_mux = 1;


  OIF_SPDIF_CONTROL.field.spdif_data_mode = 1;
  OIF_SPDIF_CONTROL.field.spdif_efm_mode = 1;

  // Enable Audio DAC
  OIF_SPDIF_CONTROL.field.i2s_spdif_mux = 1;
  OIF_I2S_SPDIF_REG_2.mux_1_field.parallel_mode = 1;
  OIF_I2S_SPDIF_REG_2.mux_1_field.ad_mute = 0;
  OIF_I2S_SPDIF_REG_2.mux_1_field.ad_mclk_polarity = 1;

  OIF_I2S_SPDIF_REG_0.mux_1_field.slsi_pi2s = 1;     // Keyboard
  OIF_I2S_SPDIF_REG_0.mux_1_field.framelength = 1;   // Keyboard
  OIF_I2S_SPDIF_REG_0.mux_1_field.sclk_level = 1;    // Keyboard
  OIF_I2S_SPDIF_REG_0.mux_1_field.wclk_level = 0;    // Keyboard
  OIF_I2S_SPDIF_REG_0.mux_1_field.c2flags_level = 0; // Keyboard
  OIF_I2S_SPDIF_REG_0.mux_1_field.sdata_level = 0;   // Keyboard
  OIF_I2S_SPDIF_REG_0.mux_1_field.audio_dac_clk = 0;


  OIF_I2S_SPDIF_REG_1.mux_1_field.i2s_data_out_format = 5; // Keyboard

  OIF_SPDIF_CONTROL.field.i2s_spdif_mux = 0;

  OIF_SOFT_RST.all = 0x00;
}
#endif // if 0

void oif_init(void)
{
  volatile CIF_CONF_UNION cif_conf;

  DISABLE_INTERRUPTS();
  
  // Start OIF Reconfiguration
  
  // Save Channel Interface Configuration
  cif_conf.all = CIF_CONF.all;
  
  // Channel Output ITF under H/W reset
  CGC_PUR1.field.ch_itf = 0;
  CGC_PCG1.field.ch_itf = 0;
 
  // OIF under H/W reset.
  AAB_PUR0.field.oif = 0;
  AAB_PCG0.field.oif = 0;
  
  // Release Channel ITF from H/W reset
  CGC_PUR1.field.ch_itf = 1;
  CGC_PCG1.field.ch_itf = 1;
    
  // Restore CIF Configuration
  CIF_CONF.all = cif_conf.all;
  
  // Set CIF_CONF.SRC bit 
  // To give data to the OIF in order to set 1
  // The enable_sample_request.
  if(!cif_conf.field.src)
  {
  	CIF_CONF.field.src = 1;
  }
  
  // Block Decoder under H/W Reset 
  AAB_PUR0.field.block_dec = 0;
   
  // Release OIF From Reset 
  AAB_PUR0.field.oif = 1;
  AAB_PCG0.field.oif = 1;
  
  // Program OIF
 
  // After OIF Reset en_shockproof is 0.
  // OIF Request sample directly from CIRC
  // To be sure that OIF request data directly from Channel Interface 
  // Output Port do the following procedure
  
  // Set en_shockproof = 1
  OIF_SP_CTRL.field.en_shockproof = 1;
  
#if (HAVE_CD_MECHA == 1)
  // H/W Reset CIRC/CLV Hardware Block
  AAB_PUR0.field.circ_clv = 0;
  AAB_PUR0.field.circ_clv = 1;
#endif
  
  // H/W Reset Block Decoder
  AAB_PUR0.field.block_dec = 1;
      
  // Reinitialize ClV, ECC and Block Decoder    
#if (HAVE_CD_MECHA == 1)
  clv_init();
#endif
  ecc_init();      
  bd_dma_init(&bd_params);
  
  //BD_CTL1.field.test = 0x01; // For Testing
      
  OIF_AP_CONTROL_PART_2.field.enable_sample_req = 1;
 
 // OIF_SP_CTRL.field.en_shockproof = 0;   // To enable buffer Data
  OIF_SP_CTRL.field.monitor_buffer = 1;
 // OIF_AP_CONTROL_PART_2.field.enable_sample_req = 0;
 

  OIF_AP_CONTROL_PART_1.field.data_signed_ext = 1;
  OIF_AP_CONTROL_PART_1.field.audio_enable = 1;

  OIF_I2S_SPDIF_REG_1.mux_0_field.spdif_ratio = 0x0C;
  OIF_I2S_SPDIF_REG_1.mux_0_field.input_clock_selection = 2;
  OIF_I2S_SPDIF_REG_1.mux_0_field.invert_clock = 1;

  switch(CNF_I2S_FS)
  {
  	case FS_32:
     OIF_I2S_SPDIF_REG_2.mux_0_field.i2s_ratio = 0x18;
     OIF_I2S_SPDIF_REG_2.mux_0_field.word_ratio = 1;	 
  	break;
  	
  	case FS_48:
  	 OIF_I2S_SPDIF_REG_2.mux_0_field.i2s_ratio = 0x10;
     OIF_I2S_SPDIF_REG_2.mux_0_field.word_ratio = 2;
  	break;
  	
  	case FS_64:
  	 OIF_I2S_SPDIF_REG_2.mux_0_field.i2s_ratio = 0x0C;
     OIF_I2S_SPDIF_REG_2.mux_0_field.word_ratio = 3;
  	break;
  	
  	default:
  	  OIF_I2S_SPDIF_REG_2.mux_0_field.i2s_ratio = 0x18;
     OIF_I2S_SPDIF_REG_2.mux_0_field.word_ratio = 1;
  	break;
  }
  
  OIF_I2S_SPDIF_REG_2.mux_0_field.extern_clock_mux = 1;

  // I2S
  OIF_SPDIF_CONTROL.field.i2s_spdif_mux = 1;
  OIF_I2S_SPDIF_REG_0.mux_1_field.slsi_pi2s = CNF_I2S_FORMAT;           // philips i2s
  switch(CNF_I2S_FS)
  {
  	case FS_32:
     OIF_I2S_SPDIF_REG_0.mux_1_field.framelength = 0; 
    break; 
  	
  	case FS_48:
  	 OIF_I2S_SPDIF_REG_0.mux_1_field.framelength = 1; 
  	break;
  	
  	case FS_64: