| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* |
| * 1-Wire implementation for the ds2780 chip |
| * |
| * Author: Renata Sayakhova <renata@oktetlabs.ru> |
| * |
| * Based on w1-ds2760 driver |
| */ |
| |
| #ifndef _W1_DS2781_H |
| #define _W1_DS2781_H |
| |
| /* Function commands */ |
| #define W1_DS2781_READ_DATA 0x69 |
| #define W1_DS2781_WRITE_DATA 0x6C |
| #define W1_DS2781_COPY_DATA 0x48 |
| #define W1_DS2781_RECALL_DATA 0xB8 |
| #define W1_DS2781_LOCK 0x6A |
| |
| /* Register map */ |
| /* Register 0x00 Reserved */ |
| #define DS2781_STATUS 0x01 |
| #define DS2781_RAAC_MSB 0x02 |
| #define DS2781_RAAC_LSB 0x03 |
| #define DS2781_RSAC_MSB 0x04 |
| #define DS2781_RSAC_LSB 0x05 |
| #define DS2781_RARC 0x06 |
| #define DS2781_RSRC 0x07 |
| #define DS2781_IAVG_MSB 0x08 |
| #define DS2781_IAVG_LSB 0x09 |
| #define DS2781_TEMP_MSB 0x0A |
| #define DS2781_TEMP_LSB 0x0B |
| #define DS2781_VOLT_MSB 0x0C |
| #define DS2781_VOLT_LSB 0x0D |
| #define DS2781_CURRENT_MSB 0x0E |
| #define DS2781_CURRENT_LSB 0x0F |
| #define DS2781_ACR_MSB 0x10 |
| #define DS2781_ACR_LSB 0x11 |
| #define DS2781_ACRL_MSB 0x12 |
| #define DS2781_ACRL_LSB 0x13 |
| #define DS2781_AS 0x14 |
| #define DS2781_SFR 0x15 |
| #define DS2781_FULL_MSB 0x16 |
| #define DS2781_FULL_LSB 0x17 |
| #define DS2781_AE_MSB 0x18 |
| #define DS2781_AE_LSB 0x19 |
| #define DS2781_SE_MSB 0x1A |
| #define DS2781_SE_LSB 0x1B |
| /* Register 0x1C - 0x1E Reserved */ |
| #define DS2781_EEPROM 0x1F |
| #define DS2781_EEPROM_BLOCK0_START 0x20 |
| /* Register 0x20 - 0x2F User EEPROM */ |
| #define DS2781_EEPROM_BLOCK0_END 0x2F |
| /* Register 0x30 - 0x5F Reserved */ |
| #define DS2781_EEPROM_BLOCK1_START 0x60 |
| #define DS2781_CONTROL 0x60 |
| #define DS2781_AB 0x61 |
| #define DS2781_AC_MSB 0x62 |
| #define DS2781_AC_LSB 0x63 |
| #define DS2781_VCHG 0x64 |
| #define DS2781_IMIN 0x65 |
| #define DS2781_VAE 0x66 |
| #define DS2781_IAE 0x67 |
| #define DS2781_AE_40 0x68 |
| #define DS2781_RSNSP 0x69 |
| #define DS2781_FULL_40_MSB 0x6A |
| #define DS2781_FULL_40_LSB 0x6B |
| #define DS2781_FULL_4_SLOPE 0x6C |
| #define DS2781_FULL_3_SLOPE 0x6D |
| #define DS2781_FULL_2_SLOPE 0x6E |
| #define DS2781_FULL_1_SLOPE 0x6F |
| #define DS2781_AE_4_SLOPE 0x70 |
| #define DS2781_AE_3_SLOPE 0x71 |
| #define DS2781_AE_2_SLOPE 0x72 |
| #define DS2781_AE_1_SLOPE 0x73 |
| #define DS2781_SE_4_SLOPE 0x74 |
| #define DS2781_SE_3_SLOPE 0x75 |
| #define DS2781_SE_2_SLOPE 0x76 |
| #define DS2781_SE_1_SLOPE 0x77 |
| #define DS2781_RSGAIN_MSB 0x78 |
| #define DS2781_RSGAIN_LSB 0x79 |
| #define DS2781_RSTC 0x7A |
| #define DS2781_COB 0x7B |
| #define DS2781_TBP34 0x7C |
| #define DS2781_TBP23 0x7D |
| #define DS2781_TBP12 0x7E |
| #define DS2781_EEPROM_BLOCK1_END 0x7F |
| /* Register 0x7D - 0xFF Reserved */ |
| |
| #define DS2781_FSGAIN_MSB 0xB0 |
| #define DS2781_FSGAIN_LSB 0xB1 |
| |
| /* Number of valid register addresses */ |
| #define DS2781_DATA_SIZE 0xB2 |
| |
| /* Status register bits */ |
| #define DS2781_STATUS_CHGTF (1 << 7) |
| #define DS2781_STATUS_AEF (1 << 6) |
| #define DS2781_STATUS_SEF (1 << 5) |
| #define DS2781_STATUS_LEARNF (1 << 4) |
| /* Bit 3 Reserved */ |
| #define DS2781_STATUS_UVF (1 << 2) |
| #define DS2781_STATUS_PORF (1 << 1) |
| /* Bit 0 Reserved */ |
| |
| /* Control register bits */ |
| /* Bit 7 Reserved */ |
| #define DS2781_CONTROL_NBEN (1 << 7) |
| #define DS2781_CONTROL_UVEN (1 << 6) |
| #define DS2781_CONTROL_PMOD (1 << 5) |
| #define DS2781_CONTROL_RNAOP (1 << 4) |
| #define DS1781_CONTROL_UVTH (1 << 3) |
| /* Bit 0 - 2 Reserved */ |
| |
| /* Special feature register bits */ |
| /* Bit 1 - 7 Reserved */ |
| #define DS2781_SFR_PIOSC (1 << 0) |
| |
| /* EEPROM register bits */ |
| #define DS2781_EEPROM_EEC (1 << 7) |
| #define DS2781_EEPROM_LOCK (1 << 6) |
| /* Bit 2 - 6 Reserved */ |
| #define DS2781_EEPROM_BL1 (1 << 1) |
| #define DS2781_EEPROM_BL0 (1 << 0) |
| |
| extern int w1_ds2781_io(struct device *dev, char *buf, int addr, size_t count, |
| int io); |
| extern int w1_ds2781_eeprom_cmd(struct device *dev, int addr, int cmd); |
| |
| #endif /* !_W1_DS2781_H */ |
