1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * AD7266/65 SPI ADC driver
4 *
5 * Copyright 2012 Analog Devices Inc.
6 */
7
8 #ifndef __IIO_ADC_AD7266_H__
9 #define __IIO_ADC_AD7266_H__
10
11 /**
12 * enum ad7266_range - AD7266 reference voltage range
13 * @AD7266_RANGE_VREF: Device is configured for input range 0V - VREF
14 * (RANGE pin set to low)
15 * @AD7266_RANGE_2VREF: Device is configured for input range 0V - 2VREF
16 * (RANGE pin set to high)
17 */
18 enum ad7266_range {
19 AD7266_RANGE_VREF,
20 AD7266_RANGE_2VREF,
21 };
22
23 /**
24 * enum ad7266_mode - AD7266 sample mode
25 * @AD7266_MODE_DIFF: Device is configured for full differential mode
26 * (SGL/DIFF pin set to low, AD0 pin set to low)
27 * @AD7266_MODE_PSEUDO_DIFF: Device is configured for pseudo differential mode
28 * (SGL/DIFF pin set to low, AD0 pin set to high)
29 * @AD7266_MODE_SINGLE_ENDED: Device is configured for single-ended mode
30 * (SGL/DIFF pin set to high)
31 */
32 enum ad7266_mode {
33 AD7266_MODE_DIFF,
34 AD7266_MODE_PSEUDO_DIFF,
35 AD7266_MODE_SINGLE_ENDED,
36 };
37
38 /**
39 * struct ad7266_platform_data - Platform data for the AD7266 driver
40 * @range: Reference voltage range the device is configured for
41 * @mode: Sample mode the device is configured for
42 * @fixed_addr: Whether the address pins are hard-wired
43 * @addr_gpios: GPIOs used for controlling the address pins, only used if
44 * fixed_addr is set to false.
45 */
46 struct ad7266_platform_data {
47 enum ad7266_range range;
48 enum ad7266_mode mode;
49 bool fixed_addr;
50 unsigned int addr_gpios[3];
51 };
52
53 #endif