/* * 1-Wire implementation for the ds2760 chip * * Copyright © 2004-2005, Szabolcs Gyurko <szabolcs.gyurko@tlt.hu> * * Use consistent with the GNU GPL is permitted, * provided that this copyright notice is * preserved in its entirety in all copies and derived works. * */ #ifndef __w1_ds2760_h__ #define __w1_ds2760_h__ /* Known commands to the DS2760 chip */ #define W1_DS2760_SWAP 0xAA #define W1_DS2760_READ_DATA 0x69 #define W1_DS2760_WRITE_DATA 0x6C #define W1_DS2760_COPY_DATA 0x48 #define W1_DS2760_RECALL_DATA 0xB8 #define W1_DS2760_LOCK 0x6A /* Number of valid register addresses */ #define DS2760_DATA_SIZE 0x40 #define DS2760_PROTECTION_REG 0x00 #define DS2760_STATUS_REG 0x01 #define DS2760_STATUS_IE (1 << 2) #define DS2760_STATUS_SWEN (1 << 3) #define DS2760_STATUS_RNAOP (1 << 4) #define DS2760_STATUS_PMOD (1 << 5) #define DS2760_EEPROM_REG 0x07 #define DS2760_SPECIAL_FEATURE_REG 0x08 #define DS2760_VOLTAGE_MSB 0x0c #define DS2760_VOLTAGE_LSB 0x0d #define DS2760_CURRENT_MSB 0x0e #define DS2760_CURRENT_LSB 0x0f #define DS2760_CURRENT_ACCUM_MSB 0x10 #define DS2760_CURRENT_ACCUM_LSB 0x11 #define DS2760_TEMP_MSB 0x18 #define DS2760_TEMP_LSB 0x19 #define DS2760_EEPROM_BLOCK0 0x20 #define DS2760_ACTIVE_FULL 0x20 #define DS2760_EEPROM_BLOCK1 0x30 #define DS2760_STATUS_WRITE_REG 0x31 #define DS2760_RATED_CAPACITY 0x32 #define DS2760_CURRENT_OFFSET_BIAS 0x33 #define DS2760_ACTIVE_EMPTY 0x3b extern int w1_ds2760_read(struct device *dev, char *buf, int addr, size_t count); extern int w1_ds2760_write(struct device *dev, char *buf, int addr, size_t count); extern int w1_ds2760_store_eeprom(struct device *dev, int addr); extern int w1_ds2760_recall_eeprom(struct device *dev, int addr); #endif /* !__w1_ds2760_h__ */ |