Merge branch 'rework/printk_safe-removal' into for-linus
[platform/kernel/linux-rpi.git] / drivers / w1 / slaves / w1_ds2780.h
1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * 1-Wire implementation for the ds2780 chip
4  *
5  * Copyright (C) 2010 Indesign, LLC
6  *
7  * Author: Clifton Barnes <cabarnes@indesign-llc.com>
8  *
9  * Based on w1-ds2760 driver
10  */
11
12 #ifndef _W1_DS2780_H
13 #define _W1_DS2780_H
14
15 /* Function commands */
16 #define W1_DS2780_READ_DATA             0x69
17 #define W1_DS2780_WRITE_DATA            0x6C
18 #define W1_DS2780_COPY_DATA             0x48
19 #define W1_DS2780_RECALL_DATA           0xB8
20 #define W1_DS2780_LOCK                  0x6A
21
22 /* Register map */
23 /* Register 0x00 Reserved */
24 #define DS2780_STATUS_REG               0x01
25 #define DS2780_RAAC_MSB_REG             0x02
26 #define DS2780_RAAC_LSB_REG             0x03
27 #define DS2780_RSAC_MSB_REG             0x04
28 #define DS2780_RSAC_LSB_REG             0x05
29 #define DS2780_RARC_REG                 0x06
30 #define DS2780_RSRC_REG                 0x07
31 #define DS2780_IAVG_MSB_REG             0x08
32 #define DS2780_IAVG_LSB_REG             0x09
33 #define DS2780_TEMP_MSB_REG             0x0A
34 #define DS2780_TEMP_LSB_REG             0x0B
35 #define DS2780_VOLT_MSB_REG             0x0C
36 #define DS2780_VOLT_LSB_REG             0x0D
37 #define DS2780_CURRENT_MSB_REG          0x0E
38 #define DS2780_CURRENT_LSB_REG          0x0F
39 #define DS2780_ACR_MSB_REG              0x10
40 #define DS2780_ACR_LSB_REG              0x11
41 #define DS2780_ACRL_MSB_REG             0x12
42 #define DS2780_ACRL_LSB_REG             0x13
43 #define DS2780_AS_REG                   0x14
44 #define DS2780_SFR_REG                  0x15
45 #define DS2780_FULL_MSB_REG             0x16
46 #define DS2780_FULL_LSB_REG             0x17
47 #define DS2780_AE_MSB_REG               0x18
48 #define DS2780_AE_LSB_REG               0x19
49 #define DS2780_SE_MSB_REG               0x1A
50 #define DS2780_SE_LSB_REG               0x1B
51 /* Register 0x1C - 0x1E Reserved */
52 #define DS2780_EEPROM_REG               0x1F
53 #define DS2780_EEPROM_BLOCK0_START      0x20
54 /* Register 0x20 - 0x2F User EEPROM */
55 #define DS2780_EEPROM_BLOCK0_END        0x2F
56 /* Register 0x30 - 0x5F Reserved */
57 #define DS2780_EEPROM_BLOCK1_START      0x60
58 #define DS2780_CONTROL_REG              0x60
59 #define DS2780_AB_REG                   0x61
60 #define DS2780_AC_MSB_REG               0x62
61 #define DS2780_AC_LSB_REG               0x63
62 #define DS2780_VCHG_REG                 0x64
63 #define DS2780_IMIN_REG                 0x65
64 #define DS2780_VAE_REG                  0x66
65 #define DS2780_IAE_REG                  0x67
66 #define DS2780_AE_40_REG                0x68
67 #define DS2780_RSNSP_REG                0x69
68 #define DS2780_FULL_40_MSB_REG          0x6A
69 #define DS2780_FULL_40_LSB_REG          0x6B
70 #define DS2780_FULL_3040_SLOPE_REG      0x6C
71 #define DS2780_FULL_2030_SLOPE_REG      0x6D
72 #define DS2780_FULL_1020_SLOPE_REG      0x6E
73 #define DS2780_FULL_0010_SLOPE_REG      0x6F
74 #define DS2780_AE_3040_SLOPE_REG        0x70
75 #define DS2780_AE_2030_SLOPE_REG        0x71
76 #define DS2780_AE_1020_SLOPE_REG        0x72
77 #define DS2780_AE_0010_SLOPE_REG        0x73
78 #define DS2780_SE_3040_SLOPE_REG        0x74
79 #define DS2780_SE_2030_SLOPE_REG        0x75
80 #define DS2780_SE_1020_SLOPE_REG        0x76
81 #define DS2780_SE_0010_SLOPE_REG        0x77
82 #define DS2780_RSGAIN_MSB_REG           0x78
83 #define DS2780_RSGAIN_LSB_REG           0x79
84 #define DS2780_RSTC_REG                 0x7A
85 #define DS2780_FRSGAIN_MSB_REG          0x7B
86 #define DS2780_FRSGAIN_LSB_REG          0x7C
87 #define DS2780_EEPROM_BLOCK1_END        0x7C
88 /* Register 0x7D - 0xFF Reserved */
89
90 /* Number of valid register addresses */
91 #define DS2780_DATA_SIZE                0x80
92
93 /* Status register bits */
94 #define DS2780_STATUS_REG_CHGTF         (1 << 7)
95 #define DS2780_STATUS_REG_AEF           (1 << 6)
96 #define DS2780_STATUS_REG_SEF           (1 << 5)
97 #define DS2780_STATUS_REG_LEARNF        (1 << 4)
98 /* Bit 3 Reserved */
99 #define DS2780_STATUS_REG_UVF           (1 << 2)
100 #define DS2780_STATUS_REG_PORF          (1 << 1)
101 /* Bit 0 Reserved */
102
103 /* Control register bits */
104 /* Bit 7 Reserved */
105 #define DS2780_CONTROL_REG_UVEN         (1 << 6)
106 #define DS2780_CONTROL_REG_PMOD         (1 << 5)
107 #define DS2780_CONTROL_REG_RNAOP        (1 << 4)
108 /* Bit 0 - 3 Reserved */
109
110 /* Special feature register bits */
111 /* Bit 1 - 7 Reserved */
112 #define DS2780_SFR_REG_PIOSC            (1 << 0)
113
114 /* EEPROM register bits */
115 #define DS2780_EEPROM_REG_EEC           (1 << 7)
116 #define DS2780_EEPROM_REG_LOCK          (1 << 6)
117 /* Bit 2 - 6 Reserved */
118 #define DS2780_EEPROM_REG_BL1           (1 << 1)
119 #define DS2780_EEPROM_REG_BL0           (1 << 0)
120
121 extern int w1_ds2780_io(struct device *dev, char *buf, int addr, size_t count,
122                         int io);
123 extern int w1_ds2780_eeprom_cmd(struct device *dev, int addr, int cmd);
124
125 #endif /* !_W1_DS2780_H */