mci.UnInit

#include <file_config.h>

BOOL UnInit  (
     void);

The function UnInit deinitializes the MCI controller.

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

UnInit is invoked by the function funinit. Use UnInit at run-time to disable the device. After calling this function, only invoke the function finit for re-initializing the drive.

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

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

/* MCI Device Driver Control Block */
MCI_DRV mci0_drv = {
  Init,
  UnInit,
  Delay,
  BusMode,
  BusWidth,
  BusSpeed,
  Command,
  ReadBlock,
  WriteBlock,
  NULL,
  CheckMedia
};


/* Reset the MCI peripheral to default state. */
static BOOL UnInit (void)  {

  MCI_POWER = 0x00;               /* Power down, switch off VCC for the Flash Card. */

  MCI_COMMAND   = 0;              /* Clear all pending interrupts. */
  MCI_DATA_CTRL = 0;
  MCI_CLEAR     = 0x7FF;

  PINSEL1 &= ~0x00003FC0;         /* Disable MCI pins. */
  PINSEL4 &= ~0x0FC00000;

  PCONP   &= ~0x10000000;         /* Power Down the MCI controller. */
  return (__TRUE);
}