| 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
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| 2 | /* |
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| 3 | * 1-Wire implementation for the ds2780 chip |
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| 4 | * |
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| 5 | * Copyright (C) 2010 Indesign, LLC |
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| 6 | * |
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| 7 | * Author: Clifton Barnes <cabarnes@indesign-llc.com> |
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| 8 | * |
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| 9 | * Based on w1-ds2760 driver |
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| 10 | */ |
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| 11 | |
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| 12 | #ifndef _W1_DS2780_H |
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| 13 | #define _W1_DS2780_H |
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| 14 | |
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| 15 | /* Function commands */ |
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| 16 | #define W1_DS2780_READ_DATA 0x69 |
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| 17 | #define W1_DS2780_WRITE_DATA 0x6C |
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| 18 | #define W1_DS2780_COPY_DATA 0x48 |
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| 19 | #define W1_DS2780_RECALL_DATA 0xB8 |
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| 20 | #define W1_DS2780_LOCK 0x6A |
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| 21 | |
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| 22 | /* Register map */ |
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| 23 | /* Register 0x00 Reserved */ |
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| 24 | #define DS2780_STATUS_REG 0x01 |
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| 25 | #define DS2780_RAAC_MSB_REG 0x02 |
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| 26 | #define DS2780_RAAC_LSB_REG 0x03 |
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| 27 | #define DS2780_RSAC_MSB_REG 0x04 |
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| 28 | #define DS2780_RSAC_LSB_REG 0x05 |
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| 29 | #define DS2780_RARC_REG 0x06 |
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| 30 | #define DS2780_RSRC_REG 0x07 |
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| 31 | #define DS2780_IAVG_MSB_REG 0x08 |
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| 32 | #define DS2780_IAVG_LSB_REG 0x09 |
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| 33 | #define DS2780_TEMP_MSB_REG 0x0A |
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| 34 | #define DS2780_TEMP_LSB_REG 0x0B |
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| 35 | #define DS2780_VOLT_MSB_REG 0x0C |
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| 36 | #define DS2780_VOLT_LSB_REG 0x0D |
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| 37 | #define DS2780_CURRENT_MSB_REG 0x0E |
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| 38 | #define DS2780_CURRENT_LSB_REG 0x0F |
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| 39 | #define DS2780_ACR_MSB_REG 0x10 |
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| 40 | #define DS2780_ACR_LSB_REG 0x11 |
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| 41 | #define DS2780_ACRL_MSB_REG 0x12 |
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| 42 | #define DS2780_ACRL_LSB_REG 0x13 |
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| 43 | #define DS2780_AS_REG 0x14 |
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| 44 | #define DS2780_SFR_REG 0x15 |
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| 45 | #define DS2780_FULL_MSB_REG 0x16 |
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| 46 | #define DS2780_FULL_LSB_REG 0x17 |
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| 47 | #define DS2780_AE_MSB_REG 0x18 |
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| 48 | #define DS2780_AE_LSB_REG 0x19 |
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| 49 | #define DS2780_SE_MSB_REG 0x1A |
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| 50 | #define DS2780_SE_LSB_REG 0x1B |
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| 51 | /* Register 0x1C - 0x1E Reserved */ |
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| 52 | #define DS2780_EEPROM_REG 0x1F |
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| 53 | #define DS2780_EEPROM_BLOCK0_START 0x20 |
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| 54 | /* Register 0x20 - 0x2F User EEPROM */ |
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| 55 | #define DS2780_EEPROM_BLOCK0_END 0x2F |
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| 56 | /* Register 0x30 - 0x5F Reserved */ |
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| 57 | #define DS2780_EEPROM_BLOCK1_START 0x60 |
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| 58 | #define DS2780_CONTROL_REG 0x60 |
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| 59 | #define DS2780_AB_REG 0x61 |
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| 60 | #define DS2780_AC_MSB_REG 0x62 |
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| 61 | #define DS2780_AC_LSB_REG 0x63 |
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| 62 | #define DS2780_VCHG_REG 0x64 |
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| 63 | #define DS2780_IMIN_REG 0x65 |
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| 64 | #define DS2780_VAE_REG 0x66 |
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| 65 | #define DS2780_IAE_REG 0x67 |
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| 66 | #define DS2780_AE_40_REG 0x68 |
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| 67 | #define DS2780_RSNSP_REG 0x69 |
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| 68 | #define DS2780_FULL_40_MSB_REG 0x6A |
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| 69 | #define DS2780_FULL_40_LSB_REG 0x6B |
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| 70 | #define DS2780_FULL_3040_SLOPE_REG 0x6C |
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| 71 | #define DS2780_FULL_2030_SLOPE_REG 0x6D |
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| 72 | #define DS2780_FULL_1020_SLOPE_REG 0x6E |
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| 73 | #define DS2780_FULL_0010_SLOPE_REG 0x6F |
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| 74 | #define DS2780_AE_3040_SLOPE_REG 0x70 |
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| 75 | #define DS2780_AE_2030_SLOPE_REG 0x71 |
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| 76 | #define DS2780_AE_1020_SLOPE_REG 0x72 |
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| 77 | #define DS2780_AE_0010_SLOPE_REG 0x73 |
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| 78 | #define DS2780_SE_3040_SLOPE_REG 0x74 |
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| 79 | #define DS2780_SE_2030_SLOPE_REG 0x75 |
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| 80 | #define DS2780_SE_1020_SLOPE_REG 0x76 |
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| 81 | #define DS2780_SE_0010_SLOPE_REG 0x77 |
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| 82 | #define DS2780_RSGAIN_MSB_REG 0x78 |
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| 83 | #define DS2780_RSGAIN_LSB_REG 0x79 |
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| 84 | #define DS2780_RSTC_REG 0x7A |
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| 85 | #define DS2780_FRSGAIN_MSB_REG 0x7B |
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| 86 | #define DS2780_FRSGAIN_LSB_REG 0x7C |
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| 87 | #define DS2780_EEPROM_BLOCK1_END 0x7C |
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| 88 | /* Register 0x7D - 0xFF Reserved */ |
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| 89 | |
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| 90 | /* Number of valid register addresses */ |
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| 91 | #define DS2780_DATA_SIZE 0x80 |
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| 92 | |
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| 93 | /* Status register bits */ |
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| 94 | #define DS2780_STATUS_REG_CHGTF (1 << 7) |
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| 95 | #define DS2780_STATUS_REG_AEF (1 << 6) |
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| 96 | #define DS2780_STATUS_REG_SEF (1 << 5) |
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| 97 | #define DS2780_STATUS_REG_LEARNF (1 << 4) |
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| 98 | /* Bit 3 Reserved */ |
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| 99 | #define DS2780_STATUS_REG_UVF (1 << 2) |
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| 100 | #define DS2780_STATUS_REG_PORF (1 << 1) |
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| 101 | /* Bit 0 Reserved */ |
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| 102 | |
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| 103 | /* Control register bits */ |
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| 104 | /* Bit 7 Reserved */ |
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| 105 | #define DS2780_CONTROL_REG_UVEN (1 << 6) |
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| 106 | #define DS2780_CONTROL_REG_PMOD (1 << 5) |
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| 107 | #define DS2780_CONTROL_REG_RNAOP (1 << 4) |
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| 108 | /* Bit 0 - 3 Reserved */ |
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| 109 | |
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| 110 | /* Special feature register bits */ |
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| 111 | /* Bit 1 - 7 Reserved */ |
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| 112 | #define DS2780_SFR_REG_PIOSC (1 << 0) |
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| 113 | |
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| 114 | /* EEPROM register bits */ |
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| 115 | #define DS2780_EEPROM_REG_EEC (1 << 7) |
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| 116 | #define DS2780_EEPROM_REG_LOCK (1 << 6) |
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| 117 | /* Bit 2 - 6 Reserved */ |
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| 118 | #define DS2780_EEPROM_REG_BL1 (1 << 1) |
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| 119 | #define DS2780_EEPROM_REG_BL0 (1 << 0) |
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| 120 | |
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| 121 | extern int w1_ds2780_io(struct device *dev, char *buf, int addr, size_t count, |
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| 122 | int io); |
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| 123 | extern int w1_ds2780_eeprom_cmd(struct device *dev, int addr, int cmd); |
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| 124 | |
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| 125 | #endif /* !_W1_DS2780_H */ |
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| 126 | |
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