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include
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linux
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mfd
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abx500
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ab8500-gpadc.h

ab8500-gpadc.h 1.5 KB
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  1. /*
    2. 

  2.  * Copyright (C) 2010 ST-Ericsson SA
    3. 

  3.  * Licensed under GPLv2.
    4. 

  4.  *
    5. 

  5.  * Author: Arun R Murthy <arun.murthy@stericsson.com>
    6. 

  6.  * Author: Daniel Willerud <daniel.willerud@stericsson.com>
    7. 

  7.  * Author: M'boumba Cedric Madianga <cedric.madianga@stericsson.com>
    8. 

  8.  */
    9. 

  9. 

  10. #ifndef	_AB8500_GPADC_H
    11. 

  11. #define _AB8500_GPADC_H
    12. 

  12. 

  13. /* GPADC source: From datasheet(ADCSwSel[4:0] in GPADCCtrl2
    14. 

  14.  * and ADCHwSel[4:0] in GPADCCtrl3 ) */
    15. 

  15. #define BAT_CTRL	0x01
    16. 

  16. #define BTEMP_BALL	0x02
    17. 

  17. #define MAIN_CHARGER_V	0x03
    18. 

  18. #define ACC_DETECT1	0x04
    19. 

  19. #define ACC_DETECT2	0x05
    20. 

  20. #define ADC_AUX1	0x06
    21. 

  21. #define ADC_AUX2	0x07
    22. 

  22. #define MAIN_BAT_V	0x08
    23. 

  23. #define VBUS_V		0x09
    24. 

  24. #define MAIN_CHARGER_C	0x0A
    25. 

  25. #define USB_CHARGER_C	0x0B
    26. 

  26. #define BK_BAT_V	0x0C
    27. 

  27. #define DIE_TEMP	0x0D
    28. 

  28. 

  29. #define SAMPLE_1        1
    30. 

  30. #define SAMPLE_4        4
    31. 

  31. #define SAMPLE_8        8
    32. 

  32. #define SAMPLE_16       16
    33. 

  33. #define RISING_EDGE     0
    34. 

  34. #define FALLING_EDGE    1
    35. 

  35. 

  36. /* Arbitrary ADC conversion type constants */
    37. 

  37. #define ADC_SW				0
    38. 

  38. #define ADC_HW				1
    39. 

  39. 

  40. 

  41. struct ab8500_gpadc;
    42. 

  42. 

  43. struct ab8500_gpadc *ab8500_gpadc_get(char *name);
    44. 

  44. int ab8500_gpadc_sw_hw_convert(struct ab8500_gpadc *gpadc, u8 channel,
    45. 

  45. 		u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type);
    46. 

  46. static inline int ab8500_gpadc_convert(struct ab8500_gpadc *gpadc, u8 channel)
    47. 

  47. {
    48. 

  48. 	return ab8500_gpadc_sw_hw_convert(gpadc, channel,
    49. 

  49. 			SAMPLE_16, 0, 0, ADC_SW);
    50. 

  50. }
    51. 

  51. 

  52. int ab8500_gpadc_read_raw(struct ab8500_gpadc *gpadc, u8 channel,
    53. 

  53. 		u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type);
    54. 

  54. int ab8500_gpadc_ad_to_voltage(struct ab8500_gpadc *gpadc,
    55. 

  55. 		u8 channel, int ad_value);
    56. 

  56. 

  57. #endif /* _AB8500_GPADC_H */
    58.