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Diffstat (limited to 'include/linux/iio/adc/adi-axi-adc.h')
-rw-r--r--include/linux/iio/adc/adi-axi-adc.h64
1 files changed, 64 insertions, 0 deletions
diff --git a/include/linux/iio/adc/adi-axi-adc.h b/include/linux/iio/adc/adi-axi-adc.h
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+++ b/include/linux/iio/adc/adi-axi-adc.h
@@ -0,0 +1,64 @@
+/* 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 axi_adc_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
+ */
+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);
+};
+
+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