C++ (Cpp) sdc_lld_read_aligned Examples

Example #1

File: sdc_lld.c Project: Kreyl/nute

 */
bool_t sdc_lld_read(SDCDriver *sdcp, uint32_t startblk,
                    uint8_t *buf, uint32_t n) {

#if STM32_SDC_SDIO_UNALIGNED_SUPPORT
  if (((unsigned)buf & 3) != 0) {
    uint32_t i;
    for (i = 0; i < n; i++) {
      if (sdc_lld_read_aligned(sdcp, startblk, u.buf, 1))
        return CH_FAILED;
      memcpy(buf, u.buf, MMCSD_BLOCK_SIZE);
      buf += MMCSD_BLOCK_SIZE;
      startblk++;
    }
    return CH_SUCCESS;
  }
#endif /* STM32_SDC_SDIO_UNALIGNED_SUPPORT */
  return sdc_lld_read_aligned(sdcp, startblk, buf, n);

Example #2

File: hal_sdc_lld.c Project: DroneBuster/ChibiOS

/**
 * @brief   Reads one or more blocks.
 *
 * @param[in] sdcp      pointer to the @p SDCDriver object
 * @param[in] startblk  first block to read
 * @param[out] buf      pointer to the read buffer
 * @param[in] blocks    number of blocks to read
 *
 * @return              The operation status.
 * @retval HAL_SUCCESS  operation succeeded.
 * @retval HAL_FAILED   operation failed.
 *
 * @notapi
 */
bool sdc_lld_read(SDCDriver *sdcp, uint32_t startblk,
                  uint8_t *buf, uint32_t blocks) {

#if STM32_SDC_SDMMC_UNALIGNED_SUPPORT
  if (((unsigned)buf & 3) != 0) {
    uint32_t i;
    for (i = 0; i < blocks; i++) {
      if (sdc_lld_read_aligned(sdcp, startblk, u.buf, 1))
        return HAL_FAILED;
      memcpy(buf, u.buf, MMCSD_BLOCK_SIZE);
      buf += MMCSD_BLOCK_SIZE;
      startblk++;
    }
    return HAL_SUCCESS;
  }
#else /* !STM32_SDC_SDIO_UNALIGNED_SUPPORT */
  osalDbgAssert((((unsigned)buf & 3) == 0), "unaligned buffer");
#endif /* !STM32_SDC_SDIO_UNALIGNED_SUPPORT */
  return sdc_lld_read_aligned(sdcp, startblk, buf, blocks);
}