📄 nf.c
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}
else
{
/* if the block in the buffer is already assign, then invert it with a spare block */
if (!(nf_buf[nf_gl_buf_idx].w & 0x8000))
{
if ((nf_buf_free[gl_buf_free_idx] & 0x7FFF) == nf_lut_block[nf_zone])
{
gl_buf_free_idx++;
if (gl_buf_free_idx >= nf_spare_block)
{
gl_buf_free_idx = 0;
}
}
/* invert the block and assign the next block to be deleted */
nf_block_to_be_deleted = nf_buf[nf_gl_buf_idx].w;
nf_buf[nf_gl_buf_idx].w = nf_buf_free[gl_buf_free_idx] & 0x7FFF;
nf_buf_free[gl_buf_free_idx] = nf_block_to_be_deleted | 0x8000;
/* block have to be deleted */
nf_block_used = TRUE;
/* increase the spare buffer index */
if ((gl_buf_free_idx++) >= nf_spare_block)
{
gl_buf_free_idx = 0;
}
}
else /* The block is not assigned. Nothing to do */
{
nf_buf[nf_gl_buf_idx].w &= 0x7FFF;
nf_block_used = FALSE;
}
/* update the max index buffer */
if (nf_gl_buf_idx > nf_gl_buf_idx_max)
nf_gl_buf_idx_max = nf_gl_buf_idx;
/* Update current physical sector */
nf_current_physical_sector_addr = (Uint32)(nf_buf[nf_gl_buf_idx].w) << 5;
/* increase the logical block */
nf_logical_block++;
/* calculate the redundant block address */
nf_calc_logical_block();
}
}
Nf_CS_ON();
if (!gl_cpt_page)
{
Nf_wait_busy();
Nf_write_open_A_area(nf_current_physical_sector_addr, 0x00);
}
Nf_wr_byte(b);
/* Increase internal page counter */
gl_cpt_page++;
if (((Byte*)&gl_cpt_page)[1] == NF_DATA_SIZE_H) /* check if end of data page */
{
nf_update_spare_data();
Nf_send_command(NF_PAGE_PROGRAM_CMD);
((Byte*)&gl_cpt_page)[1] = 0;
gl_ptr_mem++;
if (!(((Byte*)&gl_ptr_mem)[0] & NF_BLOCK_MASK))
{
nf_busy = TRUE;
}
else
{
((Byte*)&nf_current_physical_sector_addr)[0]++;
}
}
return OK;
}
/*F**************************************************************************
* NAME: nf_write_sector
*----------------------------------------------------------------------------
* PARAMS:
* global: gl_ptr_mem
*
* return:
* write status: OK: write done
* KO: write not done
*----------------------------------------------------------------------------
* PURPOSE:
* This function is an optimized function that writes nb-sector * 512 bytes
* from USB controller to NF card
*----------------------------------------------------------------------------
* EXAMPLE:
*----------------------------------------------------------------------------
* NOTE:
* nb_sector always >= 1, can not be zero
*----------------------------------------------------------------------------
* REQUIREMENTS:
*****************************************************************************/
bit nf_write_sector (Uint16 nb_sector)
{
Byte j;
do
{
if (nf_busy)
{
nf_busy = FALSE;
/* If previous block have to de deleted */
if (nf_block_used)
{
nf_block_erase((Uint32)(nf_block_to_be_deleted) << 5);
}
/* increase the main buffer index */
nf_gl_buf_idx++;
/* if zone change */
if (nf_gl_buf_idx >= nf_block_max)
{
nf_write_open(gl_ptr_mem);
}
else
{
/* if the block in the buffer is already assign, then invert it with a spare block */
if (!(nf_buf[nf_gl_buf_idx].w & 0x8000))
{
if ((nf_buf_free[gl_buf_free_idx] & 0x7FFF) == nf_lut_block[nf_zone])
{
gl_buf_free_idx++;
if (gl_buf_free_idx >= nf_spare_block)
{
gl_buf_free_idx = 0;
}
}
/* invert the block and assign the next block to be deleted */
nf_block_to_be_deleted = nf_buf[nf_gl_buf_idx].w;
nf_buf[nf_gl_buf_idx].w = nf_buf_free[gl_buf_free_idx] & 0x7FFF;
nf_buf_free[gl_buf_free_idx] = nf_block_to_be_deleted | 0x8000;
/* block have to be deleted */
nf_block_used = TRUE;
/* increase the spare buffer index */
if ((gl_buf_free_idx++) >= nf_spare_block)
{
gl_buf_free_idx = 0;
}
}
else /* The block is not assigned. Nothing to do */
{
nf_buf[nf_gl_buf_idx].w &= 0x7FFF;
nf_block_used = FALSE;
}
/* update the max index buffer */
if (nf_gl_buf_idx > nf_gl_buf_idx_max)
nf_gl_buf_idx_max = nf_gl_buf_idx;
/* Update current physical sector */
nf_current_physical_sector_addr = (Uint32)(nf_buf[nf_gl_buf_idx].w) << 5;
/* increase the logical block */
nf_logical_block++;
/* calculate the redundant block address */
nf_calc_logical_block();
}
}
Nf_CS_ON();
Nf_wait_busy();
Nf_write_open_A_area(nf_current_physical_sector_addr, 0x00);
for (j = 8; j != 0; j--)
{
#if 0
while (!Usb_rx_complete()); /* wait end of reception */
Nf_wr_byte(Usb_read_byte()); /* write 64 bytes to card */
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Nf_wr_byte(Usb_read_byte());
Usb_clear_RXOUT_PP(); /* usb read acknowledgement */
#endif
}
/* Update spare data */
Nf_wr_byte(0xFF);
Nf_wr_byte(0xFF);
Nf_wr_byte(0xFF);
Nf_wr_byte(0xFF);
Nf_wr_byte(0xFF);
Nf_wr_byte(0xFF);
Nf_wr_byte(((Byte*)&nf_redundant_logical_block_value)[1]);
Nf_wr_byte(((Byte*)&nf_redundant_logical_block_value)[0]);
Nf_wr_byte(0xFF);
Nf_wr_byte(0xFF);
Nf_wr_byte(0xFF);
Nf_wr_byte(((Byte*)&nf_redundant_logical_block_value)[1]);
Nf_wr_byte(((Byte*)&nf_redundant_logical_block_value)[0]);
Nf_send_command (NF_PAGE_PROGRAM_CMD);
/* increase gl_ptr_mem : next page */
gl_ptr_mem++;
/* set flag busy */
if (!(((Byte*)&gl_ptr_mem)[0] & NF_BLOCK_MASK))
{
nf_busy = TRUE;
}
else
{
((Byte*)&nf_current_physical_sector_addr)[0]++;
}
nb_sector--;
}
while (nb_sector != 0);
return OK;
}
/*F**************************************************************************
* NAME: nf_format
*----------------------------------------------------------------------------
* PARAMS:
*
* return:
* Address of the format parameter structure in code
*----------------------------------------------------------------------------
* PURPOSE:
* This function is called by the fat_format function and returns a pointer
* to a table containing the format parameters after erasing the NF.
*----------------------------------------------------------------------------
* EXAMPLE:
*----------------------------------------------------------------------------
* NOTE:
*----------------------------------------------------------------------------
* REQUIREMENTS:
*****************************************************************************/
#define CYL_16 (Uint16)((Uint16)(500) - (MEM_RESERVED_SIZE / (4 * 16)))
#define CYL_32 (Uint16)((Uint16)(500) - (MEM_RESERVED_SIZE / (8 * 16)))
#define CYL_64 (Uint16)((Uint16)(500) - (MEM_RESERVED_SIZE / (8 * 32)))
#define CYL_128 (Uint16)((Uint16)(500) - (MEM_RESERVED_SIZE / (16 * 32)))
const s_format nf_tab_format[]=
{
/* nb_cylinder, nb_head, nb_sector, nb_hidden, nb_sector_per_cluster */
{ CYL_16, (Byte)4, (Byte)16, (Byte)57, (Byte)32 }, /* 16MB */
{ CYL_32, (Byte)8, (Byte)16, (Byte)51, (Byte)32 }, /* 32MB */
{ CYL_64, (Byte)8, (Byte)32, (Byte)39, (Byte)32 }, /* 64MB */
{ CYL_128, (Byte)16, (Byte)32, (Byte)63, (Byte)32 }, /* 128MB */
};
const s_format nf_tab_format_reserved[]=
{
/* nb_cylinder, nb_head, nb_sector, nb_hidden, nb_sector_per_cluster */
{ (Uint16)500, (Byte)4, (Byte)16, (Byte)57, (Byte)32 }, /* 16MB */
{ (Uint16)500, (Byte)8, (Byte)16, (Byte)51, (Byte)32 }, /* 32MB */
{ (Uint16)500, (Byte)8, (Byte)32, (Byte)39, (Byte)32 }, /* 64MB */
{ (Uint16)500, (Byte)16, (Byte)32, (Byte)63, (Byte)32 }, /* 128MB */
};
s_format * nf_format (void)
{
/* Erase all block */
nf_erase_all_block();
/* -- NF Type Selection -- */
if (reserved_disk_space == FALSE)
{
if (nf_reserved_space == TRUE)
{
nf_mem_size -= MEM_RESERVED_SIZE;
nf_reserved_space = FALSE;
}
return (s_format *)(&nf_tab_format[NF_TYPE]);
}
else
{
if (nf_reserved_space == FALSE)
{
nf_reserved_space = TRUE;
nf_mem_size += MEM_RESERVED_SIZE;
}
return (s_format *)(&nf_tab_format_reserved[NF_TYPE]);
}
}
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