ad5449.h 1.2 KB

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  1. /*
  2. * AD5415, AD5426, AD5429, AD5432, AD5439, AD5443, AD5449 Digital to Analog
  3. * Converter driver.
  4. *
  5. * Copyright 2012 Analog Devices Inc.
  6. * Author: Lars-Peter Clausen <lars@metafoo.de>
  7. *
  8. * Licensed under the GPL-2.
  9. */
  10. #ifndef __LINUX_PLATFORM_DATA_AD5449_H__
  11. #define __LINUX_PLATFORM_DATA_AD5449_H__
  12. /**
  13. * enum ad5449_sdo_mode - AD5449 SDO pin configuration
  14. * @AD5449_SDO_DRIVE_FULL: Drive the SDO pin with full strength.
  15. * @AD5449_SDO_DRIVE_WEAK: Drive the SDO pin with not full strength.
  16. * @AD5449_SDO_OPEN_DRAIN: Operate the SDO pin in open-drain mode.
  17. * @AD5449_SDO_DISABLED: Disable the SDO pin, in this mode it is not possible to
  18. * read back from the device.
  19. */
  20. enum ad5449_sdo_mode {
  21. AD5449_SDO_DRIVE_FULL = 0x0,
  22. AD5449_SDO_DRIVE_WEAK = 0x1,
  23. AD5449_SDO_OPEN_DRAIN = 0x2,
  24. AD5449_SDO_DISABLED = 0x3,
  25. };
  26. /**
  27. * struct ad5449_platform_data - Platform data for the ad5449 DAC driver
  28. * @sdo_mode: SDO pin mode
  29. * @hardware_clear_to_midscale: Whether asserting the hardware CLR pin sets the
  30. * outputs to midscale (true) or to zero scale(false).
  31. */
  32. struct ad5449_platform_data {
  33. enum ad5449_sdo_mode sdo_mode;
  34. bool hardware_clear_to_midscale;
  35. };
  36. #endif