1d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov/* 2d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov * 1-Wire implementation for the ds2760 chip 3d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov * 4d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov * Copyright © 2004-2005, Szabolcs Gyurko <szabolcs.gyurko@tlt.hu> 5d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov * 6d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov * Use consistent with the GNU GPL is permitted, 7d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov * provided that this copyright notice is 8d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov * preserved in its entirety in all copies and derived works. 9d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov * 10d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov */ 11d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov 12d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov#ifndef __w1_ds2760_h__ 13d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov#define __w1_ds2760_h__ 14d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov 15d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov/* Known commands to the DS2760 chip */ 16d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov#define W1_DS2760_SWAP 0xAA 17d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov#define W1_DS2760_READ_DATA 0x69 18d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov#define W1_DS2760_WRITE_DATA 0x6C 19d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov#define W1_DS2760_COPY_DATA 0x48 20d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov#define W1_DS2760_RECALL_DATA 0xB8 21d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov#define W1_DS2760_LOCK 0x6A 22d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov 23d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov/* Number of valid register addresses */ 24d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov#define DS2760_DATA_SIZE 0x40 25d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov 26d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov#define DS2760_PROTECTION_REG 0x00 27d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov#define DS2760_STATUS_REG 0x01 28cef437e3a9b6d229d4ed3730cde047007267df6dDaniel Mack #define DS2760_STATUS_IE (1 << 2) 29cef437e3a9b6d229d4ed3730cde047007267df6dDaniel Mack #define DS2760_STATUS_SWEN (1 << 3) 30cef437e3a9b6d229d4ed3730cde047007267df6dDaniel Mack #define DS2760_STATUS_RNAOP (1 << 4) 31cef437e3a9b6d229d4ed3730cde047007267df6dDaniel Mack #define DS2760_STATUS_PMOD (1 << 5) 32d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov#define DS2760_EEPROM_REG 0x07 33d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov#define DS2760_SPECIAL_FEATURE_REG 0x08 34d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov#define DS2760_VOLTAGE_MSB 0x0c 35d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov#define DS2760_VOLTAGE_LSB 0x0d 36d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov#define DS2760_CURRENT_MSB 0x0e 37d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov#define DS2760_CURRENT_LSB 0x0f 38d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov#define DS2760_CURRENT_ACCUM_MSB 0x10 39d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov#define DS2760_CURRENT_ACCUM_LSB 0x11 40d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov#define DS2760_TEMP_MSB 0x18 41d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov#define DS2760_TEMP_LSB 0x19 42d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov#define DS2760_EEPROM_BLOCK0 0x20 43d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov#define DS2760_ACTIVE_FULL 0x20 44d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov#define DS2760_EEPROM_BLOCK1 0x30 45cef437e3a9b6d229d4ed3730cde047007267df6dDaniel Mack#define DS2760_STATUS_WRITE_REG 0x31 46d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov#define DS2760_RATED_CAPACITY 0x32 47d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov#define DS2760_CURRENT_OFFSET_BIAS 0x33 48d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov#define DS2760_ACTIVE_EMPTY 0x3b 49d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov 50d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsovextern int w1_ds2760_read(struct device *dev, char *buf, int addr, 51d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov size_t count); 52d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsovextern int w1_ds2760_write(struct device *dev, char *buf, int addr, 53d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov size_t count); 540b47b5703b1cc6c3aa89663ac70e28dadedf6cccDaniel Mackextern int w1_ds2760_store_eeprom(struct device *dev, int addr); 550b47b5703b1cc6c3aa89663ac70e28dadedf6cccDaniel Mackextern int w1_ds2760_recall_eeprom(struct device *dev, int addr); 56d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov 57d7ce6d1d5f6e307a2fbb69626cf120e20e793fe7Anton Vorontsov#endif /* !__w1_ds2760_h__ */ 58