Release 4.7 drivers/misc/ad525x_dpot.h

Directory: drivers/misc
/*
 * Driver for the Analog Devices digital potentiometers
 *
 * Copyright (C) 2010 Michael Hennerich, Analog Devices Inc.
 *
 * Licensed under the GPL-2 or later.
 */

#ifndef _AD_DPOT_H_

#define _AD_DPOT_H_

#include <linux/types.h>


#define DPOT_CONF(features, wipers, max_pos, uid) \
		(((features) << 18) | (((wipers) & 0xFF) << 10) | \
                ((max_pos & 0xF) << 6) | (uid & 0x3F))


#define DPOT_UID(conf)		(conf & 0x3F)

#define DPOT_MAX_POS(conf)	((conf >> 6) & 0xF)

#define DPOT_WIPERS(conf)	((conf >> 10) & 0xFF)

#define DPOT_FEAT(conf)		(conf >> 18)


#define BRDAC0			(1 << 0)

#define BRDAC1			(1 << 1)

#define BRDAC2			(1 << 2)

#define BRDAC3			(1 << 3)

#define BRDAC4			(1 << 4)

#define BRDAC5			(1 << 5)

#define MAX_RDACS		6


#define F_CMD_INC		(1 << 0)	
/* Features INC/DEC ALL, 6dB */

#define F_CMD_EEP		(1 << 1)	
/* Features EEPROM */

#define F_CMD_OTP		(1 << 2)	
/* Features OTP */

#define F_CMD_TOL		(1 << 3)	
/* RDACS feature Tolerance REG */

#define F_RDACS_RW		(1 << 4)	
/* RDACS are Read/Write  */

#define F_RDACS_WONLY		(1 << 5)	
/* RDACS are Write only */

#define F_AD_APPDATA		(1 << 6)	
/* RDAC Address append to data */

#define F_SPI_8BIT		(1 << 7)	
/* All SPI XFERS are 8-bit */

#define F_SPI_16BIT		(1 << 8)	
/* All SPI XFERS are 16-bit */

#define F_SPI_24BIT		(1 << 9)	
/* All SPI XFERS are 24-bit */


#define F_RDACS_RW_TOL	(F_RDACS_RW | F_CMD_EEP | F_CMD_TOL)

#define F_RDACS_RW_EEP	(F_RDACS_RW | F_CMD_EEP)

#define F_SPI		(F_SPI_8BIT | F_SPI_16BIT | F_SPI_24BIT)


enum dpot_devid {
	
AD5258_ID = DPOT_CONF(F_RDACS_RW_TOL, BRDAC0, 6, 0), /* I2C */
	
AD5259_ID = DPOT_CONF(F_RDACS_RW_TOL, BRDAC0, 8, 1),
	
AD5251_ID = DPOT_CONF(F_RDACS_RW_TOL | F_CMD_INC,
			BRDAC1 | BRDAC3, 6, 2),
	
AD5252_ID = DPOT_CONF(F_RDACS_RW_TOL | F_CMD_INC,
			BRDAC1 | BRDAC3, 8, 3),
	
AD5253_ID = DPOT_CONF(F_RDACS_RW_TOL | F_CMD_INC,
			BRDAC0 | BRDAC1 | BRDAC2 | BRDAC3, 6, 4),
	
AD5254_ID = DPOT_CONF(F_RDACS_RW_TOL | F_CMD_INC,
			BRDAC0 | BRDAC1 | BRDAC2 | BRDAC3, 8, 5),
	
AD5255_ID = DPOT_CONF(F_RDACS_RW_TOL | F_CMD_INC,
			BRDAC0 | BRDAC1 | BRDAC2, 9, 6),
	
AD5160_ID = DPOT_CONF(F_RDACS_WONLY | F_AD_APPDATA | F_SPI_8BIT,
			BRDAC0, 8, 7), /* SPI */
	
AD5161_ID = DPOT_CONF(F_RDACS_WONLY | F_AD_APPDATA | F_SPI_8BIT,
			BRDAC0, 8, 8),
	
AD5162_ID = DPOT_CONF(F_RDACS_WONLY | F_AD_APPDATA | F_SPI_16BIT,
			BRDAC0 | BRDAC1, 8, 9),
	
AD5165_ID = DPOT_CONF(F_RDACS_WONLY | F_AD_APPDATA | F_SPI_8BIT,
			BRDAC0, 8, 10),
	
AD5200_ID = DPOT_CONF(F_RDACS_WONLY | F_AD_APPDATA | F_SPI_8BIT,
			BRDAC0, 8, 11),
	
AD5201_ID = DPOT_CONF(F_RDACS_WONLY | F_AD_APPDATA | F_SPI_8BIT,
			BRDAC0, 5, 12),
	
AD5203_ID = DPOT_CONF(F_RDACS_WONLY | F_AD_APPDATA | F_SPI_8BIT,
			BRDAC0 | BRDAC1 | BRDAC2 | BRDAC3, 6, 13),
	
AD5204_ID = DPOT_CONF(F_RDACS_WONLY | F_AD_APPDATA | F_SPI_16BIT,
			BRDAC0 | BRDAC1 | BRDAC2 | BRDAC3, 8, 14),
	
AD5206_ID = DPOT_CONF(F_RDACS_WONLY | F_AD_APPDATA | F_SPI_16BIT,
			BRDAC0 | BRDAC1 | BRDAC2 | BRDAC3 | BRDAC4 | BRDAC5,
			8, 15),
	
AD5207_ID = DPOT_CONF(F_RDACS_WONLY | F_AD_APPDATA | F_SPI_16BIT,
			BRDAC0 | BRDAC1, 8, 16),
	
AD5231_ID = DPOT_CONF(F_RDACS_RW_EEP | F_CMD_INC | F_SPI_24BIT,
			BRDAC0, 10, 17),
	
AD5232_ID = DPOT_CONF(F_RDACS_RW_EEP | F_CMD_INC | F_SPI_16BIT,
			BRDAC0 | BRDAC1, 8, 18),
	
AD5233_ID = DPOT_CONF(F_RDACS_RW_EEP | F_CMD_INC | F_SPI_16BIT,
			BRDAC0 | BRDAC1 | BRDAC2 | BRDAC3, 6, 19),
	
AD5235_ID = DPOT_CONF(F_RDACS_RW_EEP | F_CMD_INC | F_SPI_24BIT,
			BRDAC0 | BRDAC1, 10, 20),
	
AD5260_ID = DPOT_CONF(F_RDACS_WONLY | F_AD_APPDATA | F_SPI_8BIT,
			BRDAC0, 8, 21),
	
AD5262_ID = DPOT_CONF(F_RDACS_WONLY | F_AD_APPDATA | F_SPI_16BIT,
			BRDAC0 | BRDAC1, 8, 22),
	
AD5263_ID = DPOT_CONF(F_RDACS_WONLY | F_AD_APPDATA | F_SPI_16BIT,
			BRDAC0 | BRDAC1 | BRDAC2 | BRDAC3, 8, 23),
	
AD5290_ID = DPOT_CONF(F_RDACS_WONLY | F_AD_APPDATA | F_SPI_8BIT,
			BRDAC0, 8, 24),
	
AD5291_ID = DPOT_CONF(F_RDACS_RW | F_SPI_16BIT | F_CMD_OTP,
			BRDAC0, 8, 25),
	
AD5292_ID = DPOT_CONF(F_RDACS_RW | F_SPI_16BIT | F_CMD_OTP,
			BRDAC0, 10, 26),
	
AD5293_ID = DPOT_CONF(F_RDACS_RW | F_SPI_16BIT, BRDAC0, 10, 27),
	
AD7376_ID = DPOT_CONF(F_RDACS_WONLY | F_AD_APPDATA | F_SPI_8BIT,
			BRDAC0, 7, 28),
	
AD8400_ID = DPOT_CONF(F_RDACS_WONLY | F_AD_APPDATA | F_SPI_16BIT,
			BRDAC0, 8, 29),
	
AD8402_ID = DPOT_CONF(F_RDACS_WONLY | F_AD_APPDATA | F_SPI_16BIT,
			BRDAC0 | BRDAC1, 8, 30),
	
AD8403_ID = DPOT_CONF(F_RDACS_WONLY | F_AD_APPDATA | F_SPI_16BIT,
			BRDAC0 | BRDAC1 | BRDAC2, 8, 31),
	
ADN2850_ID = DPOT_CONF(F_RDACS_RW_EEP | F_CMD_INC | F_SPI_24BIT,
			BRDAC0 | BRDAC1, 10, 32),
	
AD5241_ID = DPOT_CONF(F_RDACS_RW, BRDAC0, 8, 33),
	
AD5242_ID = DPOT_CONF(F_RDACS_RW, BRDAC0 | BRDAC1, 8, 34),
	
AD5243_ID = DPOT_CONF(F_RDACS_RW, BRDAC0 | BRDAC1, 8, 35),
	
AD5245_ID = DPOT_CONF(F_RDACS_RW, BRDAC0, 8, 36),
	
AD5246_ID = DPOT_CONF(F_RDACS_RW, BRDAC0, 7, 37),
	
AD5247_ID = DPOT_CONF(F_RDACS_RW, BRDAC0, 7, 38),
	
AD5248_ID = DPOT_CONF(F_RDACS_RW, BRDAC0 | BRDAC1, 8, 39),
	
AD5280_ID = DPOT_CONF(F_RDACS_RW, BRDAC0, 8, 40),
	
AD5282_ID = DPOT_CONF(F_RDACS_RW, BRDAC0 | BRDAC1, 8, 41),
	
ADN2860_ID = DPOT_CONF(F_RDACS_RW_TOL | F_CMD_INC,
			BRDAC0 | BRDAC1 | BRDAC2, 9, 42),
	
AD5273_ID = DPOT_CONF(F_RDACS_RW | F_CMD_OTP, BRDAC0, 6, 43),
	
AD5171_ID = DPOT_CONF(F_RDACS_RW | F_CMD_OTP, BRDAC0, 6, 44),
	
AD5170_ID = DPOT_CONF(F_RDACS_RW | F_CMD_OTP, BRDAC0, 8, 45),
	
AD5172_ID = DPOT_CONF(F_RDACS_RW | F_CMD_OTP, BRDAC0 | BRDAC1, 8, 46),
	
AD5173_ID = DPOT_CONF(F_RDACS_RW | F_CMD_OTP, BRDAC0 | BRDAC1, 8, 47),
	
AD5270_ID = DPOT_CONF(F_RDACS_RW | F_CMD_OTP | F_SPI_16BIT,
			BRDAC0, 10, 48),
	
AD5271_ID = DPOT_CONF(F_RDACS_RW | F_CMD_OTP | F_SPI_16BIT,
			BRDAC0, 8, 49),
	
AD5272_ID = DPOT_CONF(F_RDACS_RW | F_CMD_OTP, BRDAC0, 10, 50),
	
AD5274_ID = DPOT_CONF(F_RDACS_RW | F_CMD_OTP, BRDAC0, 8, 51),
};


#define DPOT_RDAC0		0

#define DPOT_RDAC1		1

#define DPOT_RDAC2		2

#define DPOT_RDAC3		3

#define DPOT_RDAC4		4

#define DPOT_RDAC5		5


#define DPOT_RDAC_MASK		0x1F


#define DPOT_REG_TOL		0x18

#define DPOT_TOL_RDAC0		(DPOT_REG_TOL | DPOT_RDAC0)

#define DPOT_TOL_RDAC1		(DPOT_REG_TOL | DPOT_RDAC1)

#define DPOT_TOL_RDAC2		(DPOT_REG_TOL | DPOT_RDAC2)

#define DPOT_TOL_RDAC3		(DPOT_REG_TOL | DPOT_RDAC3)

#define DPOT_TOL_RDAC4		(DPOT_REG_TOL | DPOT_RDAC4)

#define DPOT_TOL_RDAC5		(DPOT_REG_TOL | DPOT_RDAC5)

/* RDAC-to-EEPROM Interface Commands */

#define DPOT_ADDR_RDAC		(0x0 << 5)

#define DPOT_ADDR_EEPROM	(0x1 << 5)

#define DPOT_ADDR_OTP		(0x1 << 6)

#define DPOT_ADDR_CMD		(0x1 << 7)

#define DPOT_ADDR_OTP_EN	(0x1 << 9)


#define DPOT_DEC_ALL_6DB	(DPOT_ADDR_CMD | (0x4 << 3))

#define DPOT_INC_ALL_6DB	(DPOT_ADDR_CMD | (0x9 << 3))

#define DPOT_DEC_ALL		(DPOT_ADDR_CMD | (0x6 << 3))

#define DPOT_INC_ALL		(DPOT_ADDR_CMD | (0xB << 3))


#define DPOT_SPI_RDAC		0xB0

#define DPOT_SPI_EEPROM		0x30

#define DPOT_SPI_READ_RDAC	0xA0

#define DPOT_SPI_READ_EEPROM	0x90

#define DPOT_SPI_DEC_ALL_6DB	0x50

#define DPOT_SPI_INC_ALL_6DB	0xD0

#define DPOT_SPI_DEC_ALL	0x70

#define DPOT_SPI_INC_ALL	0xF0

/* AD5291/2/3 use special commands */

#define DPOT_AD5291_RDAC	0x01

#define DPOT_AD5291_READ_RDAC	0x02

#define DPOT_AD5291_STORE_XTPM	0x03

#define DPOT_AD5291_CTRLREG	0x06

#define DPOT_AD5291_UNLOCK_CMD	0x03

/* AD5270/1/2/4 use special commands */

#define DPOT_AD5270_1_2_4_RDAC		0x01

#define DPOT_AD5270_1_2_4_READ_RDAC	0x02

#define DPOT_AD5270_1_2_4_STORE_XTPM	0x03

#define DPOT_AD5270_1_2_4_CTRLREG	0x07

#define DPOT_AD5270_1_2_4_UNLOCK_CMD	0x03


#define DPOT_AD5282_RDAC_AB	0x80


#define DPOT_AD5273_FUSE	0x80

#define DPOT_AD5170_2_3_FUSE	0x20

#define DPOT_AD5170_2_3_OW	0x08

#define DPOT_AD5172_3_A0	0x08

#define DPOT_AD5170_2FUSE	0x80

struct dpot_data;


struct ad_dpot_bus_ops {
	
int (*read_d8) (void *client);
	
int (*read_r8d8) (void *client, u8 reg);
	
int (*read_r8d16) (void *client, u8 reg);
	
int (*write_d8) (void *client, u8 val);
	
int (*write_r8d8) (void *client, u8 reg, u8 val);
	
int (*write_r8d16) (void *client, u8 reg, u16 val);
};


struct ad_dpot_bus_data {
	
void *client;
	
const struct ad_dpot_bus_ops *bops;
};

int ad_dpot_probe(struct device *dev, struct ad_dpot_bus_data *bdata,
		  unsigned long devid, const char *name);
int ad_dpot_remove(struct device *dev);

#endif
Overall Contributors
Person Tokens Prop Commits CommitProp
michael hennerich michael hennerich 1381 99.86% 8 88.89%
steven miao steven miao 2 0.14% 1 11.11%
Total 1383 100.00% 9 100.00%
  Directory: drivers/misc

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
	Person	Tokens	Prop	Commits	CommitProp
michael hennerich	michael hennerich	1381	99.86%	8	88.89%
steven miao	steven miao	2	0.14%	1	11.11%
	Total	1383	100.00%	9	100.00%
cregit-Linux how code gets into the kernel

Release 4.7 drivers/misc/ad525x_dpot.h

Overall Contributors
