58 lines
1.8 KiB
C
58 lines
1.8 KiB
C
/*
|
|
* 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__ */
|