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