/* * AD9833/AD9834/AD9837/AD9838 SPI DDS driver * * Copyright 2010-2011 Analog Devices Inc. * * Licensed under the GPL-2. */ #ifndef IIO_DDS_AD9834_H_ #define IIO_DDS_AD9834_H_ /* * TODO: struct ad7887_platform_data needs to go into include/linux/iio */ /** * struct ad9834_platform_data - platform specific information * @mclk: master clock in Hz * @freq0: power up freq0 tuning word in Hz * @freq1: power up freq1 tuning word in Hz * @phase0: power up phase0 value [0..4095] correlates with 0..2PI * @phase1: power up phase1 value [0..4095] correlates with 0..2PI * @en_div2: digital output/2 is passed to the SIGN BIT OUT pin * @en_signbit_msb_out: the MSB (or MSB/2) of the DAC data is connected to the * SIGN BIT OUT pin. en_div2 controls whether it is the MSB * or MSB/2 that is output. if en_signbit_msb_out=false, * the on-board comparator is connected to SIGN BIT OUT */ struct ad9834_platform_data { unsigned int mclk; unsigned int freq0; unsigned int freq1; unsigned short phase0; unsigned short phase1; bool en_div2; bool en_signbit_msb_out; }; #endif /* IIO_DDS_AD9834_H_ */