| Renata Sayakhova | fef37e9 | 2012-02-29 14:58:53 +0100 | [diff] [blame] | 1 | /* |
| 2 | * 1-Wire implementation for the ds2780 chip |
| 3 | * |
| 4 | * Author: Renata Sayakhova <renata@oktetlabs.ru> |
| 5 | * |
| 6 | * Based on w1-ds2760 driver |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License version 2 as |
| 10 | * published by the Free Software Foundation. |
| 11 | * |
| 12 | */ |
| 13 | |
| 14 | #ifndef _W1_DS2781_H |
| 15 | #define _W1_DS2781_H |
| 16 | |
| 17 | /* Function commands */ |
| 18 | #define W1_DS2781_READ_DATA 0x69 |
| 19 | #define W1_DS2781_WRITE_DATA 0x6C |
| 20 | #define W1_DS2781_COPY_DATA 0x48 |
| 21 | #define W1_DS2781_RECALL_DATA 0xB8 |
| 22 | #define W1_DS2781_LOCK 0x6A |
| 23 | |
| 24 | /* Register map */ |
| 25 | /* Register 0x00 Reserved */ |
| 26 | #define DS2781_STATUS 0x01 |
| 27 | #define DS2781_RAAC_MSB 0x02 |
| 28 | #define DS2781_RAAC_LSB 0x03 |
| 29 | #define DS2781_RSAC_MSB 0x04 |
| 30 | #define DS2781_RSAC_LSB 0x05 |
| 31 | #define DS2781_RARC 0x06 |
| 32 | #define DS2781_RSRC 0x07 |
| 33 | #define DS2781_IAVG_MSB 0x08 |
| 34 | #define DS2781_IAVG_LSB 0x09 |
| 35 | #define DS2781_TEMP_MSB 0x0A |
| 36 | #define DS2781_TEMP_LSB 0x0B |
| 37 | #define DS2781_VOLT_MSB 0x0C |
| 38 | #define DS2781_VOLT_LSB 0x0D |
| 39 | #define DS2781_CURRENT_MSB 0x0E |
| 40 | #define DS2781_CURRENT_LSB 0x0F |
| 41 | #define DS2781_ACR_MSB 0x10 |
| 42 | #define DS2781_ACR_LSB 0x11 |
| 43 | #define DS2781_ACRL_MSB 0x12 |
| 44 | #define DS2781_ACRL_LSB 0x13 |
| 45 | #define DS2781_AS 0x14 |
| 46 | #define DS2781_SFR 0x15 |
| 47 | #define DS2781_FULL_MSB 0x16 |
| 48 | #define DS2781_FULL_LSB 0x17 |
| 49 | #define DS2781_AE_MSB 0x18 |
| 50 | #define DS2781_AE_LSB 0x19 |
| 51 | #define DS2781_SE_MSB 0x1A |
| 52 | #define DS2781_SE_LSB 0x1B |
| 53 | /* Register 0x1C - 0x1E Reserved */ |
| 54 | #define DS2781_EEPROM 0x1F |
| 55 | #define DS2781_EEPROM_BLOCK0_START 0x20 |
| 56 | /* Register 0x20 - 0x2F User EEPROM */ |
| 57 | #define DS2781_EEPROM_BLOCK0_END 0x2F |
| 58 | /* Register 0x30 - 0x5F Reserved */ |
| 59 | #define DS2781_EEPROM_BLOCK1_START 0x60 |
| 60 | #define DS2781_CONTROL 0x60 |
| 61 | #define DS2781_AB 0x61 |
| 62 | #define DS2781_AC_MSB 0x62 |
| 63 | #define DS2781_AC_LSB 0x63 |
| 64 | #define DS2781_VCHG 0x64 |
| 65 | #define DS2781_IMIN 0x65 |
| 66 | #define DS2781_VAE 0x66 |
| 67 | #define DS2781_IAE 0x67 |
| 68 | #define DS2781_AE_40 0x68 |
| 69 | #define DS2781_RSNSP 0x69 |
| 70 | #define DS2781_FULL_40_MSB 0x6A |
| 71 | #define DS2781_FULL_40_LSB 0x6B |
| 72 | #define DS2781_FULL_4_SLOPE 0x6C |
| 73 | #define DS2781_FULL_3_SLOPE 0x6D |
| 74 | #define DS2781_FULL_2_SLOPE 0x6E |
| 75 | #define DS2781_FULL_1_SLOPE 0x6F |
| 76 | #define DS2781_AE_4_SLOPE 0x70 |
| 77 | #define DS2781_AE_3_SLOPE 0x71 |
| 78 | #define DS2781_AE_2_SLOPE 0x72 |
| 79 | #define DS2781_AE_1_SLOPE 0x73 |
| 80 | #define DS2781_SE_4_SLOPE 0x74 |
| 81 | #define DS2781_SE_3_SLOPE 0x75 |
| 82 | #define DS2781_SE_2_SLOPE 0x76 |
| 83 | #define DS2781_SE_1_SLOPE 0x77 |
| 84 | #define DS2781_RSGAIN_MSB 0x78 |
| 85 | #define DS2781_RSGAIN_LSB 0x79 |
| 86 | #define DS2781_RSTC 0x7A |
| 87 | #define DS2781_COB 0x7B |
| 88 | #define DS2781_TBP34 0x7C |
| 89 | #define DS2781_TBP23 0x7D |
| 90 | #define DS2781_TBP12 0x7E |
| 91 | #define DS2781_EEPROM_BLOCK1_END 0x7F |
| 92 | /* Register 0x7D - 0xFF Reserved */ |
| 93 | |
| 94 | #define DS2781_FSGAIN_MSB 0xB0 |
| 95 | #define DS2781_FSGAIN_LSB 0xB1 |
| 96 | |
| 97 | /* Number of valid register addresses */ |
| 98 | #define DS2781_DATA_SIZE 0xB2 |
| 99 | |
| 100 | /* Status register bits */ |
| 101 | #define DS2781_STATUS_CHGTF (1 << 7) |
| 102 | #define DS2781_STATUS_AEF (1 << 6) |
| 103 | #define DS2781_STATUS_SEF (1 << 5) |
| 104 | #define DS2781_STATUS_LEARNF (1 << 4) |
| 105 | /* Bit 3 Reserved */ |
| 106 | #define DS2781_STATUS_UVF (1 << 2) |
| 107 | #define DS2781_STATUS_PORF (1 << 1) |
| 108 | /* Bit 0 Reserved */ |
| 109 | |
| 110 | /* Control register bits */ |
| 111 | /* Bit 7 Reserved */ |
| 112 | #define DS2781_CONTROL_NBEN (1 << 7) |
| 113 | #define DS2781_CONTROL_UVEN (1 << 6) |
| 114 | #define DS2781_CONTROL_PMOD (1 << 5) |
| 115 | #define DS2781_CONTROL_RNAOP (1 << 4) |
| 116 | #define DS1781_CONTROL_UVTH (1 << 3) |
| 117 | /* Bit 0 - 2 Reserved */ |
| 118 | |
| 119 | /* Special feature register bits */ |
| 120 | /* Bit 1 - 7 Reserved */ |
| 121 | #define DS2781_SFR_PIOSC (1 << 0) |
| 122 | |
| 123 | /* EEPROM register bits */ |
| 124 | #define DS2781_EEPROM_EEC (1 << 7) |
| 125 | #define DS2781_EEPROM_LOCK (1 << 6) |
| 126 | /* Bit 2 - 6 Reserved */ |
| 127 | #define DS2781_EEPROM_BL1 (1 << 1) |
| 128 | #define DS2781_EEPROM_BL0 (1 << 0) |
| 129 | |
| 130 | extern int w1_ds2781_io(struct device *dev, char *buf, int addr, size_t count, |
| 131 | int io); |
| 132 | extern int w1_ds2781_io_nolock(struct device *dev, char *buf, int addr, |
| 133 | size_t count, int io); |
| 134 | extern int w1_ds2781_eeprom_cmd(struct device *dev, int addr, int cmd); |
| 135 | |
| 136 | #endif /* !_W1_DS2781_H */ |