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w1_ds2760.h

w1_ds2760.h 1.8 KB
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  1. /*
    2. 

  2.  * 1-Wire implementation for the ds2760 chip
    3. 

  3.  *
    4. 

  4.  * Copyright © 2004-2005, Szabolcs Gyurko <szabolcs.gyurko@tlt.hu>
    5. 

  5.  *
    6. 

  6.  * Use consistent with the GNU GPL is permitted,
    7. 

  7.  * provided that this copyright notice is
    8. 

  8.  * preserved in its entirety in all copies and derived works.
    9. 

  9.  *
    10. 

  10.  */
    11. 

  11. 

  12. #ifndef __w1_ds2760_h__
    13. 

  13. #define __w1_ds2760_h__
    14. 

  14. 

  15. /* Known commands to the DS2760 chip */
    16. 

  16. #define W1_DS2760_SWAP			0xAA
    17. 

  17. #define W1_DS2760_READ_DATA		0x69
    18. 

  18. #define W1_DS2760_WRITE_DATA		0x6C
    19. 

  19. #define W1_DS2760_COPY_DATA		0x48
    20. 

  20. #define W1_DS2760_RECALL_DATA		0xB8
    21. 

  21. #define W1_DS2760_LOCK			0x6A
    22. 

  22. 

  23. /* Number of valid register addresses */
    24. 

  24. #define DS2760_DATA_SIZE		0x40
    25. 

  25. 

  26. #define DS2760_PROTECTION_REG		0x00
    27. 

  27. #define DS2760_STATUS_REG		0x01
    28. 

  28. 	#define DS2760_STATUS_IE	(1 << 2)
    29. 

  29. 	#define DS2760_STATUS_SWEN	(1 << 3)
    30. 

  30. 	#define DS2760_STATUS_RNAOP	(1 << 4)
    31. 

  31. 	#define DS2760_STATUS_PMOD	(1 << 5)
    32. 

  32. #define DS2760_EEPROM_REG		0x07
    33. 

  33. #define DS2760_SPECIAL_FEATURE_REG	0x08
    34. 

  34. #define DS2760_VOLTAGE_MSB		0x0c
    35. 

  35. #define DS2760_VOLTAGE_LSB		0x0d
    36. 

  36. #define DS2760_CURRENT_MSB		0x0e
    37. 

  37. #define DS2760_CURRENT_LSB		0x0f
    38. 

  38. #define DS2760_CURRENT_ACCUM_MSB	0x10
    39. 

  39. #define DS2760_CURRENT_ACCUM_LSB	0x11
    40. 

  40. #define DS2760_TEMP_MSB			0x18
    41. 

  41. #define DS2760_TEMP_LSB			0x19
    42. 

  42. #define DS2760_EEPROM_BLOCK0		0x20
    43. 

  43. #define DS2760_ACTIVE_FULL		0x20
    44. 

  44. #define DS2760_EEPROM_BLOCK1		0x30
    45. 

  45. #define DS2760_STATUS_WRITE_REG		0x31
    46. 

  46. #define DS2760_RATED_CAPACITY		0x32
    47. 

  47. #define DS2760_CURRENT_OFFSET_BIAS	0x33
    48. 

  48. #define DS2760_ACTIVE_EMPTY		0x3b
    49. 

  49. 

  50. extern int w1_ds2760_read(struct device *dev, char *buf, int addr,
    51. 

  51. 			  size_t count);
    52. 

  52. extern int w1_ds2760_write(struct device *dev, char *buf, int addr,
    53. 

  53. 			   size_t count);
    54. 

  54. extern int w1_ds2760_store_eeprom(struct device *dev, int addr);
    55. 

  55. extern int w1_ds2760_recall_eeprom(struct device *dev, int addr);
    56. 

  56. 

  57. #endif /* !__w1_ds2760_h__ */
    58.