/* * 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_ /* Registers */ #define AD9834_REG_CMD 0 #define AD9834_REG_FREQ0 BIT(14) #define AD9834_REG_FREQ1 BIT(15) #define AD9834_REG_PHASE0 (BIT(15) | BIT(14)) #define AD9834_REG_PHASE1 (BIT(15) | BIT(14) | BIT(13)) /* Command Control Bits */ #define AD9834_B28 BIT(13) #define AD9834_HLB BIT(12) #define AD9834_FSEL BIT(11) #define AD9834_PSEL BIT(10) #define AD9834_PIN_SW BIT(9) #define AD9834_RESET BIT(8) #define AD9834_SLEEP1 BIT(7) #define AD9834_SLEEP12 BIT(6) #define AD9834_OPBITEN BIT(5) #define AD9834_SIGN_PIB BIT(4) #define AD9834_DIV2 BIT(3) #define AD9834_MODE BIT(1) #define AD9834_FREQ_BITS 28 #define AD9834_PHASE_BITS 12 #define RES_MASK(bits) (BIT(bits) - 1) /** * struct ad9834_state - driver instance specific data * @spi: spi_device * @reg: supply regulator * @mclk: external master clock * @control: cached control word * @xfer: default spi transfer * @msg: default spi message * @freq_xfer: tuning word spi transfer * @freq_msg: tuning word spi message * @data: spi transmit buffer * @freq_data: tuning word spi transmit buffer */ struct ad9834_state { struct spi_device *spi; struct regulator *reg; unsigned int mclk; unsigned short control; unsigned short devid; struct spi_transfer xfer; struct spi_message msg; struct spi_transfer freq_xfer[2]; struct spi_message freq_msg; /* * DMA (thus cache coherency maintenance) requires the * transfer buffers to live in their own cache lines. */ __be16 data ____cacheline_aligned; __be16 freq_data[2]; }; /* * 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; }; /** * ad9834_supported_device_ids: */ enum ad9834_supported_device_ids { ID_AD9833, ID_AD9834, ID_AD9837, ID_AD9838, }; #endif /* IIO_DDS_AD9834_H_ */Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Michael Hennerich | 178 | 89.45% | 2 | 40.00% |
| Cristina Opriceana | 18 | 9.05% | 1 | 20.00% |
| Lars-Peter Clausen | 2 | 1.01% | 1 | 20.00% |
| Jonathan Cameron | 1 | 0.50% | 1 | 20.00% |
| Total | 199 | 100.00% | 5 | 100.00% |