[mirror_ubuntu-bionic-kernel.git] / include / linux / i2c-algo-pca.h

#ifndef _LINUX_I2C_ALGO_PCA_H
#define _LINUX_I2C_ALGO_PCA_H

/* Clock speeds for the bus */
#define I2C_PCA_CON_330kHz	0x00
#define I2C_PCA_CON_288kHz	0x01
#define I2C_PCA_CON_217kHz	0x02
#define I2C_PCA_CON_146kHz	0x03
#define I2C_PCA_CON_88kHz	0x04
#define I2C_PCA_CON_59kHz	0x05
#define I2C_PCA_CON_44kHz	0x06
#define I2C_PCA_CON_36kHz	0x07

/* PCA9564 registers */
#define I2C_PCA_STA		0x00 /* STATUS  Read Only  */
#define I2C_PCA_TO		0x00 /* TIMEOUT Write Only */
#define I2C_PCA_DAT		0x01 /* DATA    Read/Write */
#define I2C_PCA_ADR		0x02 /* OWN ADR Read/Write */
#define I2C_PCA_CON		0x03 /* CONTROL Read/Write */

#define I2C_PCA_CON_AA		0x80 /* Assert Acknowledge */
#define I2C_PCA_CON_ENSIO	0x40 /* Enable */
#define I2C_PCA_CON_STA		0x20 /* Start */
#define I2C_PCA_CON_STO		0x10 /* Stop */
#define I2C_PCA_CON_SI		0x08 /* Serial Interrupt */
#define I2C_PCA_CON_CR		0x07 /* Clock Rate (MASK) */

struct i2c_algo_pca_data {
	void 				*data;	/* private low level data */
	void (*write_byte)		(void *data, int reg, int val);
	int  (*read_byte)		(void *data, int reg);
	int  (*wait_for_completion)	(void *data);
	void (*reset_chip)		(void *data);
	/* i2c_clock values are defined in linux/i2c-algo-pca.h */
	unsigned int			i2c_clock;
};

int i2c_pca_add_bus(struct i2c_adapter *);
int i2c_pca_add_numbered_bus(struct i2c_adapter *);

#endif /* _LINUX_I2C_ALGO_PCA_H */
Commit	Line	Data
1da177e4 LT	1	#ifndef _LINUX_I2C_ALGO_PCA_H
	2	#define _LINUX_I2C_ALGO_PCA_H
	3
c01b0831 WS	4	/* Clock speeds for the bus */
	5	#define I2C_PCA_CON_330kHz 0x00
	6	#define I2C_PCA_CON_288kHz 0x01
	7	#define I2C_PCA_CON_217kHz 0x02
	8	#define I2C_PCA_CON_146kHz 0x03
	9	#define I2C_PCA_CON_88kHz 0x04
	10	#define I2C_PCA_CON_59kHz 0x05
	11	#define I2C_PCA_CON_44kHz 0x06
	12	#define I2C_PCA_CON_36kHz 0x07
	13
	14	/* PCA9564 registers */
	15	#define I2C_PCA_STA 0x00 /* STATUS Read Only */
	16	#define I2C_PCA_TO 0x00 /* TIMEOUT Write Only */
	17	#define I2C_PCA_DAT 0x01 /* DATA Read/Write */
	18	#define I2C_PCA_ADR 0x02 /* OWN ADR Read/Write */
	19	#define I2C_PCA_CON 0x03 /* CONTROL Read/Write */
	20
	21	#define I2C_PCA_CON_AA 0x80 /* Assert Acknowledge */
	22	#define I2C_PCA_CON_ENSIO 0x40 /* Enable */
	23	#define I2C_PCA_CON_STA 0x20 /* Start */
	24	#define I2C_PCA_CON_STO 0x10 /* Stop */
	25	#define I2C_PCA_CON_SI 0x08 /* Serial Interrupt */
	26	#define I2C_PCA_CON_CR 0x07 /* Clock Rate (MASK) */
	27
1da177e4	28	struct i2c_algo_pca_data {
c01b0831 WS	29	void data; / private low level data */
	30	void (write_byte) (void data, int reg, int val);
	31	int (read_byte) (void data, int reg);
	32	int (wait_for_completion) (void data);
	33	void (reset_chip) (void data);
	34	/* i2c_clock values are defined in linux/i2c-algo-pca.h */
	35	unsigned int i2c_clock;
1da177e4 LT	36	};
1da177e4 LT	37
1da177e4	38	int i2c_pca_add_bus(struct i2c_adapter *);
c01b0831	39	int i2c_pca_add_numbered_bus(struct i2c_adapter *);
1da177e4 LT	40
1da177e4 LT	41	#endif /* _LINUX_I2C_ALGO_PCA_H */