/* SPDX-License-Identifier: GPL-2.0 */ /* * Analog Devices Generic AXI ADC IP core driver/library * Link: https://wiki.analog.com/resources/fpga/docs/axi_adc_ip * * Copyright 2012-2020 Analog Devices Inc. */ #ifndef __ADI_AXI_ADC_H__ #define __ADI_AXI_ADC_H__ struct device; struct iio_chan_spec; /** * struct adi_axi_adc_chip_info - Chip specific information * @name Chip name * @id Chip ID (usually product ID) * @channels Channel specifications of type @struct iio_chan_spec * @num_channels Number of @channels * @scale_table Supported scales by the chip; tuples of 2 ints * @num_scales Number of scales in the table * @max_rate Maximum sampling rate supported by the device */ struct adi_axi_adc_chip_info { const char *name; unsigned int id; const struct iio_chan_spec *channels; unsigned int num_channels; const unsigned int (*scale_table)[2]; int num_scales; unsigned long max_rate; }; /** * struct adi_axi_adc_conv - data of the ADC attached to the AXI ADC * @chip_info chip info details for the client ADC * @preenable_setup op to run in the client before enabling the AXI ADC * @reg_access IIO debugfs_reg_access hook for the client ADC * @read_raw IIO read_raw hook for the client ADC * @write_raw IIO write_raw hook for the client ADC * @read_avail IIO read_avail hook for the client ADC */ struct adi_axi_adc_conv { const struct adi_axi_adc_chip_info *chip_info; int (*preenable_setup)(struct adi_axi_adc_conv *conv); int (*reg_access)(struct adi_axi_adc_conv *conv, unsigned int reg, unsigned int writeval, unsigned int *readval); int (*read_raw)(struct adi_axi_adc_conv *conv, struct iio_chan_spec const *chan, int *val, int *val2, long mask); int (*write_raw)(struct adi_axi_adc_conv *conv, struct iio_chan_spec const *chan, int val, int val2, long mask); int (*read_avail)(struct adi_axi_adc_conv *conv, struct iio_chan_spec const *chan, const int **val, int *type, int *length, long mask); }; struct adi_axi_adc_conv *devm_adi_axi_adc_conv_register(struct device *dev, size_t sizeof_priv); void *adi_axi_adc_conv_priv(struct adi_axi_adc_conv *conv); #endif