[mirror_ubuntu-zesty-kernel.git] / include / linux / atmel-mci.h

#ifndef __LINUX_ATMEL_MCI_H
#define __LINUX_ATMEL_MCI_H

#define ATMCI_MAX_NR_SLOTS	2

/**
 * struct mci_slot_pdata - board-specific per-slot configuration
 * @bus_width: Number of data lines wired up the slot
 * @detect_pin: GPIO pin wired to the card detect switch
 * @wp_pin: GPIO pin wired to the write protect sensor
 * @detect_is_active_high: The state of the detect pin when it is active
 *
 * If a given slot is not present on the board, @bus_width should be
 * set to 0. The other fields are ignored in this case.
 *
 * Any pins that aren't available should be set to a negative value.
 *
 * Note that support for multiple slots is experimental -- some cards
 * might get upset if we don't get the clock management exactly right.
 * But in most cases, it should work just fine.
 */
struct mci_slot_pdata {
	unsigned int		bus_width;
	int			detect_pin;
	int			wp_pin;
	bool			detect_is_active_high;
};

/**
 * struct mci_platform_data - board-specific MMC/SDcard configuration
 * @dma_slave: DMA slave interface to use in data transfers.
 * @slot: Per-slot configuration data.
 */
struct mci_platform_data {
	struct mci_dma_data	*dma_slave;
	struct mci_slot_pdata	slot[ATMCI_MAX_NR_SLOTS];
};

#endif /* __LINUX_ATMEL_MCI_H */
Commit	Line	Data
c42aa775 NF	1	#ifndef __LINUX_ATMEL_MCI_H
c42aa775 NF	2	#define __LINUX_ATMEL_MCI_H
7d2be074	3
2c96a293	4	#define ATMCI_MAX_NR_SLOTS 2
965ebf33	5
6b918657 HS	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
1c1452be	11	* @detect_is_active_high: The state of the detect pin when it is active
6b918657 HS	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.
965ebf33 HS	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.
6b918657 HS	21	*/
	22	struct mci_slot_pdata {
	23	unsigned int bus_width;
7d2be074 HS	24	int detect_pin;
7d2be074 HS	25	int wp_pin;
1c1452be	26	bool detect_is_active_high;
7d2be074 HS	27	};
7d2be074 HS	28
6b918657 HS	29	/**
6b918657 HS	30	* struct mci_platform_data - board-specific MMC/SDcard configuration
74465b4f	31	* @dma_slave: DMA slave interface to use in data transfers.
6b918657 HS	32	* @slot: Per-slot configuration data.
	33	*/
	34	struct mci_platform_data {
2635d1ba	35	struct mci_dma_data *dma_slave;
2c96a293	36	struct mci_slot_pdata slot[ATMCI_MAX_NR_SLOTS];
6b918657 HS	37	};
6b918657 HS	38
c42aa775	39	#endif /* __LINUX_ATMEL_MCI_H */