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 | |
38 | struct ad5624r_chip_info { |
39 | const struct iio_chan_spec *channels; |
40 | u16 int_vref_mv; |
41 | }; |
42 | |
43 | /** |
44 | * struct ad5446_state - driver instance specific data |
45 | * @indio_dev: the industrial I/O device |
46 | * @us: spi_device |
47 | * @chip_info: chip model specific constants, available modes etc |
48 | * @reg: supply regulator |
49 | * @vref_mv: actual reference voltage used |
50 | * @pwr_down_mask power down mask |
51 | * @pwr_down_mode current power down mode |
52 | */ |
53 | |
54 | struct ad5624r_state { |
55 | struct spi_device *us; |
56 | const struct ad5624r_chip_info *chip_info; |
57 | struct regulator *reg; |
58 | unsigned short vref_mv; |
59 | unsigned pwr_down_mask; |
60 | unsigned pwr_down_mode; |
61 | }; |
62 | |
63 | /** |
64 | * ad5624r_supported_device_ids: |
65 | * The AD5624/44/64 parts are available in different |
66 | * fixed internal reference voltage options. |
67 | */ |
68 | |
69 | enum ad5624r_supported_device_ids { |
70 | ID_AD5624R3, |
71 | ID_AD5644R3, |
72 | ID_AD5664R3, |
73 | ID_AD5624R5, |
74 | ID_AD5644R5, |
75 | ID_AD5664R5, |
76 | }; |
77 | |
78 | #endif /* SPI_AD5624R_H_ */ |
79 | |