/*

   *  include/linux/amba/mmci.h

   */

  #ifndef AMBA_MMCI_H
  #define AMBA_MMCI_H

  #include <linux/mmc/host.h>

  /* Just some dummy forwarding */
  struct dma_chan;

  /**
   * struct mmci_platform_data - platform configuration for the MMCI
   * (also known as PL180) block.
   * @f_max: the maximum operational frequency for this host in this
   * platform configuration. When this is specified it takes precedence
   * over the module parameter for the same frequency.
   * @ocr_mask: available voltages on the 4 pins from the block, this
   * is ignored if a regulator is used, see the MMC_VDD_* masks in
   * mmc/host.h

   * @vdd_handler: a callback function to translate a MMC_VDD_*
   * mask into a value to be binary (or set some other custom bits
   * in MMCIPWR) or:ed and written into the MMCIPWR register of the
   * block.  May also control external power based on the power_mode.

   * @status: if no GPIO read function was given to the block in
   * gpio_wp (below) this function will be called to determine
   * whether a card is present in the MMC slot or not
   * @gpio_wp: read this GPIO pin to see if the card is write protected
   * @gpio_cd: read this GPIO pin to detect card insertion

   * @cd_invert: true if the gpio_cd pin value is active low

   * @capabilities: the capabilities of the block as implemented in
   * this platform, signify anything MMC_CAP_* from mmc/host.h

   * @dma_filter: function used to select an appropriate RX and TX

   * DMA channel to be used for DMA, if and only if you're deploying the
   * generic DMA engine
   * @dma_rx_param: parameter passed to the DMA allocation

   * filter in order to select an appropriate RX channel. If

   * there is a bidirectional RX+TX channel, then just specify
   * this and leave dma_tx_param set to NULL
   * @dma_tx_param: parameter passed to the DMA allocation

   * filter in order to select an appropriate TX channel. If this

   * is NULL the driver will attempt to use the RX channel as a
   * bidirectional channel

   */

  struct mmci_platform_data {

  	unsigned int f_max;
  	unsigned int ocr_mask;

  	u32 (*vdd_handler)(struct device *, unsigned int vdd,
  			   unsigned char power_mode);

  	unsigned int (*status)(struct device *);

  	int	gpio_wp;
  	int	gpio_cd;

  	bool	cd_invert;

  	unsigned long capabilities;

  	bool (*dma_filter)(struct dma_chan *chan, void *filter_param);
  	void *dma_rx_param;
  	void *dma_tx_param;

  };
  
  #endif