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ab8500-gpadc.h

ab8500-gpadc.h 2.3 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. #define USB_ID			0x0E
    29. 

  29. #define XTAL_TEMP		0x12
    30. 

  30. #define VBAT_TRUE_MEAS		0x13
    31. 

  31. #define BAT_CTRL_AND_IBAT	0x1C
    32. 

  32. #define VBAT_MEAS_AND_IBAT	0x1D
    33. 

  33. #define VBAT_TRUE_MEAS_AND_IBAT	0x1E
    34. 

  34. #define BAT_TEMP_AND_IBAT	0x1F
    35. 

  35. 

  36. /* Virtual channel used only for ibat convertion to ampere
    37. 

  37.  * Battery current conversion (ibat) cannot be requested as a single conversion
    38. 

  38.  *  but it is always in combination with other input requests
    39. 

  39.  */
    40. 

  40. #define IBAT_VIRTUAL_CHANNEL		0xFF
    41. 

  41. 

  42. #define SAMPLE_1        1
    43. 

  43. #define SAMPLE_4        4
    44. 

  44. #define SAMPLE_8        8
    45. 

  45. #define SAMPLE_16       16
    46. 

  46. #define RISING_EDGE     0
    47. 

  47. #define FALLING_EDGE    1
    48. 

  48. 

  49. /* Arbitrary ADC conversion type constants */
    50. 

  50. #define ADC_SW				0
    51. 

  51. #define ADC_HW				1
    52. 

  52. 

  53. struct ab8500_gpadc;
    54. 

  54. 

  55. struct ab8500_gpadc *ab8500_gpadc_get(char *name);
    56. 

  56. int ab8500_gpadc_sw_hw_convert(struct ab8500_gpadc *gpadc, u8 channel,
    57. 

  57. 		u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type);
    58. 

  58. static inline int ab8500_gpadc_convert(struct ab8500_gpadc *gpadc, u8 channel)
    59. 

  59. {
    60. 

  60. 	return ab8500_gpadc_sw_hw_convert(gpadc, channel,
    61. 

  61. 			SAMPLE_16, 0, 0, ADC_SW);
    62. 

  62. }
    63. 

  63. 

  64. int ab8500_gpadc_read_raw(struct ab8500_gpadc *gpadc, u8 channel,
    65. 

  65. 		u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type);
    66. 

  66. int ab8500_gpadc_double_read_raw(struct ab8500_gpadc *gpadc, u8 channel,
    67. 

  67. 		u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type,
    68. 

  68. 		int *ibat);
    69. 

  69. int ab8500_gpadc_ad_to_voltage(struct ab8500_gpadc *gpadc,
    70. 

  70. 		u8 channel, int ad_value);
    71. 

  71. void ab8540_gpadc_get_otp(struct ab8500_gpadc *gpadc,
    72. 

  72. 			u16 *vmain_l, u16 *vmain_h, u16 *btemp_l, u16 *btemp_h,
    73. 

  73. 			u16 *vbat_l, u16 *vbat_h, u16 *ibat_l, u16 *ibat_h);
    74. 

  74. 

  75. #endif /* _AB8500_GPADC_H */
    76.