mci.BusMode

#include <file_config.h>

BOOL BusMode  (
     U32 mode);       /* SD/MMC Bus mode */

The function BusMode sets the bus mode of the MCI interface.

The parameter mode specifies the requested bus mode and can have the following values:

The function is part of the MCI Driver. The prototype is defined in the file File_Config.h. Developers must customize the function.

• __TRUE - on success.
• __FALSE - on failure.

mci.BusSpeed, mci.BusWidth, mci.CheckMedia, mci.Command, mci.Delay, mci.Init, mci.ReadBlock, mci.SetDma, mci.UnInit, mci.WriteBlock

/* MCI Device Driver Control Block */
MCI_DRV mci0_drv = {
  Init,
  UnInit,
  Delay,
  BusMode,
  BusWidth,
  BusSpeed,
  Command,
  ReadBlock,
  WriteBlock,
  NULL,
  CheckMedia                          /* Can be NULL if not existing */
};

/* Set MCI Bus mode to Open Drain or Push Pull. */
static BOOL BusMode (U32 mode)  {

  switch (mode) {
    case BUS_OPEN_DRAIN:
      MCI_POWER |= 0x40;
      return (__TRUE);

    case BUS_PUSH_PULL:
      MCI_POWER &= ~0x40;
      return (__TRUE);
  }
  return (__FALSE);
}