LXR linux/include/linux/atmel-mci.h

   1#ifndef __LINUX_ATMEL_MCI_H
   2#define __LINUX_ATMEL_MCI_H
   3
   4#include <linux/types.h>
   5
   6#define ATMCI_MAX_NR_SLOTS      2
   7
   8/**
   9 * struct mci_slot_pdata - board-specific per-slot configuration
  10 * @bus_width: Number of data lines wired up the slot
  11 * @detect_pin: GPIO pin wired to the card detect switch
  12 * @wp_pin: GPIO pin wired to the write protect sensor
  13 * @detect_is_active_high: The state of the detect pin when it is active
  14 * @non_removable: The slot is not removable, only detect once
  15 *
  16 * If a given slot is not present on the board, @bus_width should be
  17 * set to 0. The other fields are ignored in this case.
  18 *
  19 * Any pins that aren't available should be set to a negative value.
  20 *
  21 * Note that support for multiple slots is experimental -- some cards
  22 * might get upset if we don't get the clock management exactly right.
  23 * But in most cases, it should work just fine.
  24 */
  25struct mci_slot_pdata {
  26        unsigned int            bus_width;
  27        int                     detect_pin;
  28        int                     wp_pin;
  29        bool                    detect_is_active_high;
  30        bool                    non_removable;
  31};
  32
  33/**
  34 * struct mci_platform_data - board-specific MMC/SDcard configuration
  35 * @dma_slave: DMA slave interface to use in data transfers.
  36 * @slot: Per-slot configuration data.
  37 */
  38struct mci_platform_data {
  39        struct mci_dma_data     *dma_slave;
  40        struct mci_slot_pdata   slot[ATMCI_MAX_NR_SLOTS];
  41};
  42
  43#endif /* __LINUX_ATMEL_MCI_H */
  44