Esempi in C++ (Cpp) per lpc32xx_mlc_write_page_with_ecc

Esempio n. 1

File: nand-mlc-erase-block-safe.c Progetto: 0871087123/rtems

void lpc32xx_mlc_zero_pages(uint32_t page_begin, uint32_t page_end)
{
  uint32_t page = 0;

  for (page = page_begin; page < page_end; ++page) {
    lpc32xx_mlc_write_page_with_ecc(
      page,
      lpc32xx_magic_zero_begin,
      lpc32xx_magic_zero_begin
    );
  }
}

Esempio n. 2

File: nand-mlc-write-blocks.c Progetto: rtemss/rtems

rtems_status_code lpc32xx_mlc_write_blocks(
  uint32_t block_begin,
  uint32_t block_end,
  const void *src,
  size_t src_size,
  uint32_t *page_data_buffer
)
{
  rtems_status_code sc = RTEMS_SUCCESSFUL;
  uint32_t pages_per_block = lpc32xx_mlc_pages_per_block();
  uint32_t block_count = lpc32xx_mlc_block_count();
  uint32_t page_size = lpc32xx_mlc_page_size();
  uint32_t block = 0;
  const uint8_t *current = src;
  const uint8_t *last = current;
  const uint8_t *end = current + src_size;

  if (block_begin > block_end || block_end > block_count) {
    return RTEMS_INVALID_ID;
  }

  for (block = block_begin; block != block_end; ++block) {
    uint32_t page_begin = block * pages_per_block;
    uint32_t page_end = page_begin + pages_per_block;
    uint32_t page = 0;

    sc = lpc32xx_mlc_erase_block_safe_3(block, page_begin, page_end);
    if (sc != RTEMS_SUCCESSFUL) {
      continue;
    }

    for (page = page_begin; page < page_end; ++page) {
      uintptr_t remainder = (uintptr_t) end - (uintptr_t) current;
      size_t delta = remainder < page_size ? remainder : page_size;

      if (remainder > 0) {
        memcpy(page_data_buffer, current, delta);
        sc = lpc32xx_mlc_write_page_with_ecc(
          page,
          page_data_buffer,
          ones_spare
        );
        if (sc != RTEMS_SUCCESSFUL) {
          lpc32xx_mlc_erase_block_safe_3(block, page_begin, page_end);
          lpc32xx_mlc_zero_pages(page_begin, page_end);
          current = last;
          continue;
        }

        current += delta;
      } else {
        goto done;
      }
    }

    last = current;
  }

done:

  if (current != end) {
    return RTEMS_IO_ERROR;
  }

  return RTEMS_SUCCESSFUL;
}