[deliverable/linux.git] / drivers / iio / dac / ad5624r.h

/*
 * AD5624R SPI DAC driver
 *
 * Copyright 2010-2011 Analog Devices Inc.
 *
 * Licensed under the GPL-2.
 */
#ifndef SPI_AD5624R_H_
#define SPI_AD5624R_H_

#define AD5624R_DAC_CHANNELS			4

#define AD5624R_ADDR_DAC0			0x0
#define AD5624R_ADDR_DAC1			0x1
#define AD5624R_ADDR_DAC2			0x2
#define AD5624R_ADDR_DAC3			0x3
#define AD5624R_ADDR_ALL_DAC			0x7

#define AD5624R_CMD_WRITE_INPUT_N		0x0
#define AD5624R_CMD_UPDATE_DAC_N		0x1
#define AD5624R_CMD_WRITE_INPUT_N_UPDATE_ALL	0x2
#define AD5624R_CMD_WRITE_INPUT_N_UPDATE_N	0x3
#define AD5624R_CMD_POWERDOWN_DAC		0x4
#define AD5624R_CMD_RESET			0x5
#define AD5624R_CMD_LDAC_SETUP			0x6
#define AD5624R_CMD_INTERNAL_REFER_SETUP	0x7

#define AD5624R_LDAC_PWRDN_NONE			0x0
#define AD5624R_LDAC_PWRDN_1K			0x1
#define AD5624R_LDAC_PWRDN_100K			0x2
#define AD5624R_LDAC_PWRDN_3STATE		0x3

/**
 * struct ad5624r_chip_info - chip specific information
 * @channels:		channel spec for the DAC
 * @int_vref_mv:	AD5620/40/60: the internal reference voltage
 */

struct ad5624r_chip_info {
	const struct iio_chan_spec	*channels;
	u16				int_vref_mv;
};

/**
 * struct ad5446_state - driver instance specific data
 * @indio_dev:		the industrial I/O device
 * @us:			spi_device
 * @chip_info:		chip model specific constants, available modes etc
 * @reg:		supply regulator
 * @vref_mv:		actual reference voltage used
 * @pwr_down_mask	power down mask
 * @pwr_down_mode	current power down mode
 */

struct ad5624r_state {
	struct spi_device		*us;
	const struct ad5624r_chip_info	*chip_info;
	struct regulator		*reg;
	unsigned short			vref_mv;
	unsigned			pwr_down_mask;
	unsigned			pwr_down_mode;
};

/**
 * ad5624r_supported_device_ids:
 * The AD5624/44/64 parts are available in different
 * fixed internal reference voltage options.
 */

enum ad5624r_supported_device_ids {
	ID_AD5624R3,
	ID_AD5644R3,
	ID_AD5664R3,
	ID_AD5624R5,
	ID_AD5644R5,
	ID_AD5664R5,
};

#endif /* SPI_AD5624R_H_ */
Commit	Line	Data
14f88f1b MH	1	/*
	2	* AD5624R SPI DAC driver
	3	*
	4	* Copyright 2010-2011 Analog Devices Inc.
	5	*
	6	* Licensed under the GPL-2.
	7	*/
6790e29f BS	8	#ifndef SPI_AD5624R_H_
	9	#define SPI_AD5624R_H_
	10
14f88f1b	11	#define AD5624R_DAC_CHANNELS 4
6790e29f	12
14f88f1b MH	13	#define AD5624R_ADDR_DAC0 0x0
	14	#define AD5624R_ADDR_DAC1 0x1
	15	#define AD5624R_ADDR_DAC2 0x2
	16	#define AD5624R_ADDR_DAC3 0x3
	17	#define AD5624R_ADDR_ALL_DAC 0x7
6790e29f	18
14f88f1b MH	19	#define AD5624R_CMD_WRITE_INPUT_N 0x0
	20	#define AD5624R_CMD_UPDATE_DAC_N 0x1
	21	#define AD5624R_CMD_WRITE_INPUT_N_UPDATE_ALL 0x2
	22	#define AD5624R_CMD_WRITE_INPUT_N_UPDATE_N 0x3
	23	#define AD5624R_CMD_POWERDOWN_DAC 0x4
	24	#define AD5624R_CMD_RESET 0x5
	25	#define AD5624R_CMD_LDAC_SETUP 0x6
	26	#define AD5624R_CMD_INTERNAL_REFER_SETUP 0x7
6790e29f	27
14f88f1b MH	28	#define AD5624R_LDAC_PWRDN_NONE 0x0
	29	#define AD5624R_LDAC_PWRDN_1K 0x1
	30	#define AD5624R_LDAC_PWRDN_100K 0x2
	31	#define AD5624R_LDAC_PWRDN_3STATE 0x3
	32
	33	/**
	34	* struct ad5624r_chip_info - chip specific information
275de9f7	35	* @channels: channel spec for the DAC
14f88f1b MH	36	* @int_vref_mv: AD5620/40/60: the internal reference voltage
	37	*/
	38
	39	struct ad5624r_chip_info {
275de9f7	40	const struct iio_chan_spec *channels;
14f88f1b MH	41	u16 int_vref_mv;
	42	};
	43
	44	/**
	45	* struct ad5446_state - driver instance specific data
	46	* @indio_dev: the industrial I/O device
	47	* @us: spi_device
	48	* @chip_info: chip model specific constants, available modes etc
	49	* @reg: supply regulator
	50	* @vref_mv: actual reference voltage used
	51	* @pwr_down_mask power down mask
	52	* @pwr_down_mode current power down mode
	53	*/
	54
	55	struct ad5624r_state {
14f88f1b MH	56	struct spi_device *us;
	57	const struct ad5624r_chip_info *chip_info;
	58	struct regulator *reg;
	59	unsigned short vref_mv;
	60	unsigned pwr_down_mask;
	61	unsigned pwr_down_mode;
	62	};
	63
	64	/**
	65	* ad5624r_supported_device_ids:
	66	* The AD5624/44/64 parts are available in different
	67	* fixed internal reference voltage options.
	68	*/
	69
	70	enum ad5624r_supported_device_ids {
	71	ID_AD5624R3,
	72	ID_AD5644R3,
	73	ID_AD5664R3,
	74	ID_AD5624R5,
	75	ID_AD5644R5,
	76	ID_AD5664R5,
	77	};
	78
	79	#endif /* SPI_AD5624R_H_ */