nf_drv.c

ATMEL MP3 源代码

    ((Byte*)&gl_cpt_page)[0]++;

    if ( ((Byte*)&gl_cpt_page)[0] == 0x08)              /* end of sector */
    {
      gl_cpt_page = 0;
      gl_ptr_mem++;
      if (nf_parity_bit == NF_ODD)
      {
        ((Byte*)&nf_current_physical_sector_addr_odd)[3]++;
        ((Byte*)&gl_address)[3]++;
      }
      else
      {
        ((Byte*)&nf_current_physical_sector_addr_even)[3]++;
        ((Byte*)&address2)[3]++;
      }
      nf_parity_bit = ~nf_parity_bit;
    }      
  }

  if (((Byte*)&gl_ptr_mem)[3] & 0x7F)
  {

    for (j = (((Byte*)&gl_ptr_mem)[3] & 0x7F); j < 0x80; j++)
    {
      if (nf_parity_bit == NF_ODD)
      {
        Nf_active_ODD();
        Nf_wait_busy_odd();
        Nf_send_command_odd (NF_READ_CMD);
        Nf_send_address_odd (0x00);
        Nf_send_address_odd (0x00);
        Nf_send_address_odd ( ((Byte*)&gl_address)[3] );    /* Row address Byte 0           */
        Nf_send_address_odd ( ((Byte*)&gl_address)[2] );    /* Row address Byte 1           */
        if (NF_5_CYCLE_ADDRESS_BIT)                         /* Size of card >= 128Mbytes ?  */
          Nf_send_address_odd ( ((Byte*)&gl_address)[1] );  /* Row address Byte 2           */
        Nf_send_command_odd (NF_COPY_BACK_CMD);
        Nf_wait_busy_odd();
    
        Nf_send_command_odd (NF_RANDOM_DATA_INPUT_CMD);
        Nf_send_address_odd (0x00);
        Nf_send_address_odd (0x00);
        Nf_send_address_odd ( ((Byte*)&nf_current_physical_sector_addr_odd)[3] );     /* Row address Byte 0           */
        Nf_send_address_odd ( ((Byte*)&nf_current_physical_sector_addr_odd)[2] );     /* Row address Byte 1           */
        if (NF_5_CYCLE_ADDRESS_BIT)                                               /* Size of card >= 128Mbytes ?  */
          Nf_send_address_odd ( ((Byte*)&nf_current_physical_sector_addr_odd)[1] );   /* Row address Byte 2           */
        Nf_send_command_odd (NF_PAGE_PROGRAM_CMD);
        ((Byte*)&nf_current_physical_sector_addr_odd)[3]++;
        ((Byte*)&gl_address)[3]++;
      }
      else
      {
        Nf_active_EVEN();
        Nf_wait_busy_even();
        Nf_send_command_even (NF_READ_CMD);
        Nf_send_address_even (0x00);
        Nf_send_address_even (0x00);
        Nf_send_address_even ( ((Byte*)&address2)[3] );    /* Row address Byte 0           */
        Nf_send_address_even ( ((Byte*)&address2)[2] );    /* Row address Byte 1           */
        if (NF_5_CYCLE_ADDRESS_BIT)                         /* Size of card >= 128Mbytes ?  */
          Nf_send_address_even ( ((Byte*)&address2)[1] );  /* Row address Byte 2           */
        Nf_send_command_even (NF_COPY_BACK_CMD);
        Nf_wait_busy_even();
    
        Nf_send_command_even (NF_RANDOM_DATA_INPUT_CMD);
        Nf_send_address_even (0x00);
        Nf_send_address_even (0x00);
        Nf_send_address_even ( ((Byte*)&nf_current_physical_sector_addr_even)[3] );     /* Row address Byte 0           */
        Nf_send_address_even ( ((Byte*)&nf_current_physical_sector_addr_even)[2] );     /* Row address Byte 1           */
        if (NF_5_CYCLE_ADDRESS_BIT)                                               /* Size of card >= 128Mbytes ?  */
          Nf_send_address_even ( ((Byte*)&nf_current_physical_sector_addr_even)[1] );   /* Row address Byte 2           */
        Nf_send_command_even (NF_PAGE_PROGRAM_CMD);
        ((Byte*)&nf_current_physical_sector_addr_even)[3]++;
        ((Byte*)&address2)[3]++;
      }
      nf_parity_bit = ~nf_parity_bit;
    }
  }
}


/*F**************************************************************************
* NAME: nf_reassign_block
*----------------------------------------------------------------------------
* PARAMS:
*
* return:
*----------------------------------------------------------------------------
* PURPOSE:
*   Reassign the block value in LUT (copy of LUT)
*----------------------------------------------------------------------------
* EXAMPLE:
*----------------------------------------------------------------------------
* NOTE:
*----------------------------------------------------------------------------
* REQUIREMENTS: 
* ram/xram:
* cycle:
* stack: 
* code:
*****************************************************************************/
void nf_reassign_block (void)
{
Byte i;           /* Counter            */
Uint16 start;
Uint32 address2;  /* LUT source address */

  if (nf_lut_index[nf_zone] == 31)
  {
    if ((nf_buf_free[gl_buf_free_idx].even & 0x7FFF) == nf_look_up_table_block)
    {
      gl_buf_free_idx++;
      if (gl_buf_free_idx >= nf_spare_block)
      {
        gl_buf_free_idx = 0;
      }      
    }

    /* Source address */
    address2 = ((Uint32)(nf_look_up_table_block)<<NF_SHIFT_SECTOR_BLOCK) + 62;

    nf_look_up_table_block = nf_buf_free[gl_buf_free_idx].even & 0x7FFF;
    
    gl_buf_free_idx++;
    if (gl_buf_free_idx >= nf_spare_block)
    {
      gl_buf_free_idx = 0;
    }      

    /* Target addres */
    gl_address = ((Uint32)(nf_look_up_table_block) << NF_SHIFT_SECTOR_BLOCK);

    nf_lut_index[nf_zone] = 0;

  }
  else
  {
    /* Source address */
    address2 =  ((Uint32)(nf_look_up_table_block) << NF_SHIFT_SECTOR_BLOCK) + 
                ((Uint32)(nf_lut_index[nf_zone])  << 1);
    nf_lut_index[nf_zone]++;
    gl_address = address2 + 2;                        /* Target address */
  }

  Nf_active_EVEN();
  Nf_wait_busy_even();
  Nf_send_command_even (NF_READ_CMD);
  Nf_send_address_even (0x00);
  Nf_send_address_even (0x00);
  Nf_send_address_even (((Byte*)&address2)[3]);
  Nf_send_address_even (((Byte*)&address2)[2]);
  if (NF_5_CYCLE_ADDRESS_BIT)                         /* Size of NF >= 128Mbytes ?    */
    Nf_send_address_even ( ((Byte*)&address2)[1] );   /* Row address Byte 2           */
  Nf_send_command_even (NF_COPY_BACK_CMD);
  
  if (nf_block_min < 512)
  {
    start = nf_block_min << 2;
  }
  else
  {
    start = 0;
  }

  Nf_wait_busy_even();
  Nf_send_command_even (NF_RANDOM_DATA_INPUT_CMD);
  Nf_send_address_even (((Byte*)&start)[1]);           /* Column address Byte 0        */
  Nf_send_address_even (((Byte*)&start)[0]);           /* Column address Byte 1        */
  Nf_send_address_even ( ((Byte*)&gl_address)[3] );    /* Row address Byte 0           */
  Nf_send_address_even ( ((Byte*)&gl_address)[2] );    /* Row address Byte 1           */
  if (NF_5_CYCLE_ADDRESS_BIT)                         /* Size of card >= 128Mbytes ?  */
    Nf_send_address_even ( ((Byte*)&gl_address)[1] );  /* Row address Byte 2           */

  if (nf_block_min < 512)
  {
    for (i = 0; (i <= nf_gl_buf_idx_max) && ((Uint16)(i) < (Uint16)((2048 - start) / 4)); i++)
    {
      Nf_wr_byte_even (nf_buf[i].even.b[0]); 
      Nf_wr_byte_even (nf_buf[i].even.b[1]);
      Nf_wr_byte_even (nf_buf[i].odd.b[0]); 
      Nf_wr_byte_even (nf_buf[i].odd.b[1]);
    }
  }
  Nf_send_command_even (NF_RANDOM_DATA_INPUT_CMD);                             /* Spare block */
  Nf_send_address_even(0x00);                                                  /* logical block > 1000 */
  Nf_send_address_even(0x08);
  Nf_wr_byte_even(0xFF); Nf_wr_byte_even(0xFF); Nf_wr_byte_even(0xFF); Nf_wr_byte_even(0xFF); /* Spare area */
  Nf_wr_byte_even(0xFF); Nf_wr_byte_even(0xFF); Nf_wr_byte_even(0xE8); Nf_wr_byte_even(0xFF);
  Nf_wr_byte_even(0xFF); Nf_wr_byte_even(0xFF); Nf_wr_byte_even(0xFF); Nf_wr_byte_even(0xE8);
  Nf_send_command_even(NF_PAGE_PROGRAM_CMD);                                   /* Valid the page programmation */

  ((Byte*)&address2)[3]++;
  ((Byte*)&gl_address)[3]++;

  Nf_wait_busy_even();
  Nf_send_command_even (NF_READ_CMD);
  Nf_send_address_even (0x00);
  Nf_send_address_even (0x00);
  Nf_send_address_even (((Byte*)&address2)[3]);
  Nf_send_address_even (((Byte*)&address2)[2]);
  if (NF_5_CYCLE_ADDRESS_BIT)                         /* Size of card >= 128Mbytes ?  */
    Nf_send_address_even ( ((Byte*)&address2)[1] );  /* Row address Byte 2           */
  Nf_send_command_even (NF_COPY_BACK_CMD);
  
  if (((Uint16)(nf_block_min) + i) >= 512)
    start = (nf_block_min + i - 512) << 2;
  else
    start = 0;


  Nf_wait_busy_even();
  Nf_send_command_even (NF_RANDOM_DATA_INPUT_CMD);
  Nf_send_address_even (((Byte*)&start)[1]);           /* Column address Byte 0        */
  Nf_send_address_even (((Byte*)&start)[0]);           /* Column address Byte 1        */
  Nf_send_address_even ( ((Byte*)&gl_address)[3] );    /* Row address Byte 0           */
  Nf_send_address_even ( ((Byte*)&gl_address)[2] );    /* Row address Byte 1           */
  if (NF_5_CYCLE_ADDRESS_BIT)                          /* Size of nf >= 128Mb?         */
    Nf_send_address_even ( ((Byte*)&gl_address)[1] );  /* Row address Byte 2           */

  for (; i <= nf_gl_buf_idx_max; i++)
  {
    Nf_wr_byte_even (nf_buf[i].even.b[0]); 
    Nf_wr_byte_even (nf_buf[i].even.b[1]);
    Nf_wr_byte_even (nf_buf[i].odd.b[0]); 
    Nf_wr_byte_even (nf_buf[i].odd.b[1]);
  }

  Nf_send_command_even (NF_RANDOM_DATA_INPUT_CMD);      /* Spare block          */
  Nf_send_address_even(0xA0);                           /* logical block > 1000 */
  Nf_send_address_even(0x07);
  for (i = 0; i <= 23; i++)
  {
    Nf_wr_byte_even (nf_buf_free[i].even>>8);
    Nf_wr_byte_even (nf_buf_free[i].even);
    Nf_wr_byte_even (nf_buf_free[i].odd>>8);
    Nf_wr_byte_even (nf_buf_free[i].odd);
  }
  /* write spare area */
  Nf_wr_byte_even(0xFF); Nf_wr_byte_even(0xFF); Nf_wr_byte_even(0xFF); Nf_wr_byte_even(0xFF); 
  Nf_wr_byte_even(0xFF); Nf_wr_byte_even(0xFF); Nf_wr_byte_even(0xE8); Nf_wr_byte_even(0xFF);
  Nf_wr_byte_even(0xFF); Nf_wr_byte_even(0xFF); Nf_wr_byte_even(0xFF); Nf_wr_byte_even(0xE8);
  Nf_send_command_even(NF_PAGE_PROGRAM_CMD);                        /* Valid the page programmation */


  nf_gl_buf_idx_max = 0;

  if (nf_lut_index[nf_zone] == 0)                                   /* Erase old lut                   */
  {
    address2 = (Uint32)(nf_lut_block[nf_zone])<<NF_SHIFT_SECTOR_BLOCK;
    nf_lut_block[nf_zone] = nf_look_up_table_block;                 /* Update address of look up table */
    Nf_wait_busy_even();
    Nf_send_command_even (NF_BLOCK_ERASE_CMD);                      /* Auto Block Erase Setup     */
    Nf_send_address_even ( ((Byte*)&address2)[3] );                 /* Row address Byte 1         */
    Nf_send_address_even ( ((Byte*)&address2)[2] );                 /* Row address Byte 2         */
    if (NF_5_CYCLE_ADDRESS_BIT)                                     /* Size of nf >= 128Mbytes?   */
      Nf_send_address_even ( ((Byte*)&address2)[1] );               /* Row address Byte 3         */
    Nf_send_command_even(NF_BLOCK_ERASE_CONFIRM_CMD);               /* Erase command              */
  }
  Nf_wait_busy_even();

}


/*F**************************************************************************
* NAME: nf_mark_bad_block
*----------------------------------------------------------------------------
* PARAMS:   
*           
* return:   
*----------------------------------------------------------------------------
* PURPOSE:
*   Write 0x00 on block status byte (Byte 5 of spare data)
*----------------------------------------------------------------------------
* EXAMPLE:
*----------------------------------------------------------------------------
* NOTE:
*   This function use the global variable Uint32 address
*----------------------------------------------------------------------------
* REQUIREMENTS: 
* ram/xram:
* cycle:
* stack: 
* code:
*****************************************************************************/
void nf_mark_bad_block (void)
{
  if (nf_parity_bit == NF_ODD)
  {
    Nf_wait_busy_odd();
    Nf_write_open_spare_area_odd(gl_address, 0x03);