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linux
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mfd
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pcf50633
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adc.h

adc.h 2.3 KB
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  1. /*
    2. 

  2.  * adc.h  -- Driver for NXP PCF50633 ADC
    3. 

  3.  *
    4. 

  4.  * (C) 2006-2008 by Openmoko, Inc.
    5. 

  5.  * All rights reserved.
    6. 

  6.  *
    7. 

  7.  * This program is free software; you can redistribute  it and/or modify it
    8. 

  8.  * under  the terms of  the GNU General  Public License as published by the
    9. 

  9.  * Free Software Foundation;  either version 2 of the  License, or (at your
    10. 

  10.  * option) any later version.
    11. 

  11.  */
    12. 

  12. 

  13. #ifndef __LINUX_MFD_PCF50633_ADC_H
    14. 

  14. #define __LINUX_MFD_PCF50633_ADC_H
    15. 

  15. 

  16. #include <linux/mfd/pcf50633/core.h>
    17. 

  17. #include <linux/platform_device.h>
    18. 

  18. 

  19. /* ADC Registers */
    20. 

  20. #define PCF50633_REG_ADCC3		0x52
    21. 

  21. #define PCF50633_REG_ADCC2		0x53
    22. 

  22. #define PCF50633_REG_ADCC1		0x54
    23. 

  23. #define PCF50633_REG_ADCS1		0x55
    24. 

  24. #define PCF50633_REG_ADCS2		0x56
    25. 

  25. #define PCF50633_REG_ADCS3		0x57
    26. 

  26. 

  27. #define PCF50633_ADCC1_ADCSTART		0x01
    28. 

  28. #define PCF50633_ADCC1_RES_8BIT		0x02
    29. 

  29. #define PCF50633_ADCC1_RES_10BIT	0x00
    30. 

  30. #define PCF50633_ADCC1_AVERAGE_NO	0x00
    31. 

  31. #define PCF50633_ADCC1_AVERAGE_4	0x04
    32. 

  32. #define PCF50633_ADCC1_AVERAGE_8	0x08
    33. 

  33. #define PCF50633_ADCC1_AVERAGE_16	0x0c
    34. 

  34. #define PCF50633_ADCC1_MUX_BATSNS_RES	0x00
    35. 

  35. #define PCF50633_ADCC1_MUX_BATSNS_SUBTR	0x10
    36. 

  36. #define PCF50633_ADCC1_MUX_ADCIN2_RES	0x20
    37. 

  37. #define PCF50633_ADCC1_MUX_ADCIN2_SUBTR	0x30
    38. 

  38. #define PCF50633_ADCC1_MUX_BATTEMP	0x60
    39. 

  39. #define PCF50633_ADCC1_MUX_ADCIN1	0x70
    40. 

  40. #define PCF50633_ADCC1_AVERAGE_MASK	0x0c
    41. 

  41. #define PCF50633_ADCC1_ADCMUX_MASK	0xf0
    42. 

  42. 

  43. #define PCF50633_ADCC2_RATIO_NONE	0x00
    44. 

  44. #define PCF50633_ADCC2_RATIO_BATTEMP	0x01
    45. 

  45. #define PCF50633_ADCC2_RATIO_ADCIN1	0x02
    46. 

  46. #define PCF50633_ADCC2_RATIO_BOTH	0x03
    47. 

  47. #define PCF50633_ADCC2_RATIOSETTL_100US 0x04
    48. 

  48. 

  49. #define PCF50633_ADCC3_ACCSW_EN		0x01
    50. 

  50. #define PCF50633_ADCC3_NTCSW_EN		0x04
    51. 

  51. #define PCF50633_ADCC3_RES_DIV_TWO	0x10
    52. 

  52. #define PCF50633_ADCC3_RES_DIV_THREE	0x00
    53. 

  53. 

  54. #define PCF50633_ADCS3_REF_NTCSW	0x00
    55. 

  55. #define PCF50633_ADCS3_REF_ACCSW	0x10
    56. 

  56. #define PCF50633_ADCS3_REF_2V0		0x20
    57. 

  57. #define PCF50633_ADCS3_REF_VISA		0x30
    58. 

  58. #define PCF50633_ADCS3_REF_2V0_2	0x70
    59. 

  59. #define PCF50633_ADCS3_ADCRDY		0x80
    60. 

  60. 

  61. #define PCF50633_ADCS3_ADCDAT1L_MASK	0x03
    62. 

  62. #define PCF50633_ADCS3_ADCDAT2L_MASK	0x0c
    63. 

  63. #define PCF50633_ADCS3_ADCDAT2L_SHIFT	2
    64. 

  64. #define PCF50633_ASCS3_REF_MASK		0x70
    65. 

  65. 

  66. extern int
    67. 

  67. pcf50633_adc_async_read(struct pcf50633 *pcf, int mux, int avg,
    68. 

  68. 		void (*callback)(struct pcf50633 *, void *, int),
    69. 

  69. 		void *callback_param);
    70. 

  70. extern int
    71. 

  71. pcf50633_adc_sync_read(struct pcf50633 *pcf, int mux, int avg);
    72. 

  72. 

  73. #endif /* __LINUX_PCF50633_ADC_H */
    74. 

  74.