[linux-2.6-block.git] / include / linux / i2c-pxa.h

#ifndef _LINUX_I2C_ALGO_PXA_H
#define _LINUX_I2C_ALGO_PXA_H

struct i2c_eeprom_emu_watcher {
	void (*write)(void *, unsigned int addr, unsigned char newval);
};

struct i2c_eeprom_emu_watch {
	struct list_head node;
	unsigned int start;
	unsigned int end;
	struct i2c_eeprom_emu_watcher *ops;
	void *data;
};

#define I2C_EEPROM_EMU_SIZE (256)

struct i2c_eeprom_emu {
	unsigned int size;
	unsigned int ptr;
	unsigned int seen_start;
	struct list_head watch;

	unsigned char bytes[I2C_EEPROM_EMU_SIZE];
};

typedef enum i2c_slave_event_e {
	I2C_SLAVE_EVENT_START_READ,
	I2C_SLAVE_EVENT_START_WRITE,
	I2C_SLAVE_EVENT_STOP
} i2c_slave_event_t;

struct i2c_slave_client {
	void *data;
	void (*event)(void *ptr, i2c_slave_event_t event);
	int  (*read) (void *ptr);
	void (*write)(void *ptr, unsigned int val);
};

extern int i2c_eeprom_emu_addwatcher(struct i2c_eeprom_emu *, void *data,
				     unsigned int addr, unsigned int size,
				     struct i2c_eeprom_emu_watcher *);

extern void i2c_eeprom_emu_delwatcher(struct i2c_eeprom_emu *, void *data, struct i2c_eeprom_emu_watcher *watcher);

extern struct i2c_eeprom_emu *i2c_pxa_get_eeprom(void);

#endif /* _LINUX_I2C_ALGO_PXA_H */
Commit	Line	Data
b652b438 RK	1	#ifndef _LINUX_I2C_ALGO_PXA_H
	2	#define _LINUX_I2C_ALGO_PXA_H
	3
	4	struct i2c_eeprom_emu_watcher {
	5	void (write)(void , unsigned int addr, unsigned char newval);
	6	};
	7
	8	struct i2c_eeprom_emu_watch {
	9	struct list_head node;
	10	unsigned int start;
	11	unsigned int end;
	12	struct i2c_eeprom_emu_watcher *ops;
	13	void *data;
	14	};
	15
	16	#define I2C_EEPROM_EMU_SIZE (256)
	17
	18	struct i2c_eeprom_emu {
	19	unsigned int size;
	20	unsigned int ptr;
	21	unsigned int seen_start;
	22	struct list_head watch;
	23
	24	unsigned char bytes[I2C_EEPROM_EMU_SIZE];
	25	};
	26
	27	typedef enum i2c_slave_event_e {
	28	I2C_SLAVE_EVENT_START_READ,
	29	I2C_SLAVE_EVENT_START_WRITE,
	30	I2C_SLAVE_EVENT_STOP
	31	} i2c_slave_event_t;
	32
	33	struct i2c_slave_client {
	34	void *data;
	35	void (event)(void ptr, i2c_slave_event_t event);
	36	int (read) (void ptr);
	37	void (write)(void ptr, unsigned int val);
	38	};
	39
	40	extern int i2c_eeprom_emu_addwatcher(struct i2c_eeprom_emu , void data,
	41	unsigned int addr, unsigned int size,
	42	struct i2c_eeprom_emu_watcher *);
	43
	44	extern void i2c_eeprom_emu_delwatcher(struct i2c_eeprom_emu , void data, struct i2c_eeprom_emu_watcher *watcher);
	45
	46	extern struct i2c_eeprom_emu *i2c_pxa_get_eeprom(void);
	47
	48	#endif /* _LINUX_I2C_ALGO_PXA_H */