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TOMOYO Linux Cross Reference
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  */
 22 struct 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  */
 34 struct 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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