ad5624r.h

 1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * AD5624R SPI DAC driver
 4 *
 5 * Copyright 2010-2011 Analog Devices Inc.
 6 */
 7#ifndef SPI_AD5624R_H_
 8#define SPI_AD5624R_H_
 9
10#define AD5624R_DAC_CHANNELS			4
11
12#define AD5624R_ADDR_DAC0			0x0
13#define AD5624R_ADDR_DAC1			0x1
14#define AD5624R_ADDR_DAC2			0x2
15#define AD5624R_ADDR_DAC3			0x3
16#define AD5624R_ADDR_ALL_DAC			0x7
17
18#define AD5624R_CMD_WRITE_INPUT_N		0x0
19#define AD5624R_CMD_UPDATE_DAC_N		0x1
20#define AD5624R_CMD_WRITE_INPUT_N_UPDATE_ALL	0x2
21#define AD5624R_CMD_WRITE_INPUT_N_UPDATE_N	0x3
22#define AD5624R_CMD_POWERDOWN_DAC		0x4
23#define AD5624R_CMD_RESET			0x5
24#define AD5624R_CMD_LDAC_SETUP			0x6
25#define AD5624R_CMD_INTERNAL_REFER_SETUP	0x7
26
27#define AD5624R_LDAC_PWRDN_NONE			0x0
28#define AD5624R_LDAC_PWRDN_1K			0x1
29#define AD5624R_LDAC_PWRDN_100K			0x2
30#define AD5624R_LDAC_PWRDN_3STATE		0x3
31
32/**
33 * struct ad5624r_chip_info - chip specific information
34 * @channels:		channel spec for the DAC
35 * @int_vref_mv:	AD5620/40/60: the internal reference voltage
36 */
37
38struct ad5624r_chip_info {
39	const struct iio_chan_spec	*channels;
40	u16				int_vref_mv;
41};
42
43/**
44 * struct ad5624r_state - driver instance specific data
45 * @us:			spi_device
46 * @chip_info:		chip model specific constants, available modes etc
47 * @vref_mv:		actual reference voltage used
48 * @pwr_down_mask	power down mask
49 * @pwr_down_mode	current power down mode
50 */
51
52struct ad5624r_state {
53	struct spi_device		*us;
54	const struct ad5624r_chip_info	*chip_info;
55	unsigned short			vref_mv;
56	unsigned			pwr_down_mask;
57	unsigned			pwr_down_mode;
58};
59
60/**
61 * ad5624r_supported_device_ids:
62 * The AD5624/44/64 parts are available in different
63 * fixed internal reference voltage options.
64 */
65
66enum ad5624r_supported_device_ids {
67	ID_AD5624R3,
68	ID_AD5644R3,
69	ID_AD5664R3,
70	ID_AD5624R5,
71	ID_AD5644R5,
72	ID_AD5664R5,
73};
74
75#endif /* SPI_AD5624R_H_ */