[mirror_ubuntu-artful-kernel.git] / include / linux / eeprom_93xx46.h

/*
 * Module: eeprom_93xx46
 * platform description for 93xx46 EEPROMs.
 */

struct gpio_desc;

struct eeprom_93xx46_platform_data {
	unsigned char	flags;
#define EE_ADDR8	0x01		/*  8 bit addr. cfg */
#define EE_ADDR16	0x02		/* 16 bit addr. cfg */
#define EE_READONLY	0x08		/* forbid writing */

	unsigned int	quirks;
/* Single word read transfers only; no sequential read. */
#define EEPROM_93XX46_QUIRK_SINGLE_WORD_READ		(1 << 0)
/* Instructions such as EWEN are (addrlen + 2) in length. */
#define EEPROM_93XX46_QUIRK_INSTRUCTION_LENGTH		(1 << 1)

	/*
	 * optional hooks to control additional logic
	 * before and after spi transfer.
	 */
	void (*prepare)(void *);
	void (*finish)(void *);
	struct gpio_desc *select;
};
Commit	Line	Data
06b4501e AG	1	/*
	2	* Module: eeprom_93xx46
	3	* platform description for 93xx46 EEPROMs.
	4	*/
	5
3ca9b1ac CT	6	struct gpio_desc;
3ca9b1ac CT	7
06b4501e AG	8	struct eeprom_93xx46_platform_data {
	9	unsigned char flags;
	10	#define EE_ADDR8 0x01 /* 8 bit addr. cfg */
	11	#define EE_ADDR16 0x02 /* 16 bit addr. cfg */
	12	#define EE_READONLY 0x08 /* forbid writing */
	13
e1379b56 CT	14	unsigned int quirks;
	15	/* Single word read transfers only; no sequential read. */
	16	#define EEPROM_93XX46_QUIRK_SINGLE_WORD_READ (1 << 0)
	17	/* Instructions such as EWEN are (addrlen + 2) in length. */
	18	#define EEPROM_93XX46_QUIRK_INSTRUCTION_LENGTH (1 << 1)
	19
06b4501e AG	20	/*
	21	* optional hooks to control additional logic
	22	* before and after spi transfer.
	23	*/
	24	void (prepare)(void );
	25	void (finish)(void );
3ca9b1ac	26	struct gpio_desc *select;
06b4501e	27	};