#include <linux/types.h>
+struct iio_chan_spec;
struct fwnode_handle;
struct iio_backend;
struct device;
IIO_BACKEND_DATA_TYPE_MAX
};
+enum iio_backend_data_source {
+ IIO_BACKEND_INTERNAL_CONTINUOS_WAVE,
+ IIO_BACKEND_EXTERNAL,
+ IIO_BACKEND_DATA_SOURCE_MAX
+};
+
+/**
+ * IIO_BACKEND_EX_INFO - Helper for an IIO extended channel attribute
+ * @_name: Attribute name
+ * @_shared: Whether the attribute is shared between all channels
+ * @_what: Data private to the driver
+ */
+#define IIO_BACKEND_EX_INFO(_name, _shared, _what) { \
+ .name = (_name), \
+ .shared = (_shared), \
+ .read = iio_backend_ext_info_get, \
+ .write = iio_backend_ext_info_set, \
+ .private = (_what), \
+}
+
/**
* struct iio_backend_data_fmt - Backend data format
- * @type: Data type.
- * @sign_extend: Bool to tell if the data is sign extended.
- * @enable: Enable/Disable the data format module. If disabled,
- * not formatting will happen.
+ * @type: Data type.
+ * @sign_extend: Bool to tell if the data is sign extended.
+ * @enable: Enable/Disable the data format module. If disabled,
+ * not formatting will happen.
*/
struct iio_backend_data_fmt {
enum iio_backend_data_type type;
bool enable;
};
+/* vendor specific from 32 */
+enum iio_backend_test_pattern {
+ IIO_BACKEND_NO_TEST_PATTERN,
+ /* modified prbs9 */
+ IIO_BACKEND_ADI_PRBS_9A = 32,
+ IIO_BACKEND_TEST_PATTERN_MAX
+};
+
+enum iio_backend_sample_trigger {
+ IIO_BACKEND_SAMPLE_TRIGGER_EDGE_FALLING,
+ IIO_BACKEND_SAMPLE_TRIGGER_EDGE_RISING,
+ IIO_BACKEND_SAMPLE_TRIGGER_MAX
+};
+
/**
* struct iio_backend_ops - operations structure for an iio_backend
- * @enable: Enable backend.
- * @disable: Disable backend.
- * @chan_enable: Enable one channel.
- * @chan_disable: Disable one channel.
- * @data_format_set: Configure the data format for a specific channel.
- * @request_buffer: Request an IIO buffer.
- * @free_buffer: Free an IIO buffer.
+ * @enable: Enable backend.
+ * @disable: Disable backend.
+ * @chan_enable: Enable one channel.
+ * @chan_disable: Disable one channel.
+ * @data_format_set: Configure the data format for a specific channel.
+ * @data_source_set: Configure the data source for a specific channel.
+ * @set_sample_rate: Configure the sampling rate for a specific channel.
+ * @test_pattern_set: Configure a test pattern.
+ * @chan_status: Get the channel status.
+ * @iodelay_set: Set digital I/O delay.
+ * @data_sample_trigger: Control when to sample data.
+ * @request_buffer: Request an IIO buffer.
+ * @free_buffer: Free an IIO buffer.
+ * @extend_chan_spec: Extend an IIO channel.
+ * @ext_info_set: Extended info setter.
+ * @ext_info_get: Extended info getter.
**/
struct iio_backend_ops {
int (*enable)(struct iio_backend *back);
int (*chan_disable)(struct iio_backend *back, unsigned int chan);
int (*data_format_set)(struct iio_backend *back, unsigned int chan,
const struct iio_backend_data_fmt *data);
+ int (*data_source_set)(struct iio_backend *back, unsigned int chan,
+ enum iio_backend_data_source data);
+ int (*set_sample_rate)(struct iio_backend *back, unsigned int chan,
+ u64 sample_rate_hz);
+ int (*test_pattern_set)(struct iio_backend *back,
+ unsigned int chan,
+ enum iio_backend_test_pattern pattern);
+ int (*chan_status)(struct iio_backend *back, unsigned int chan,
+ bool *error);
+ int (*iodelay_set)(struct iio_backend *back, unsigned int chan,
+ unsigned int taps);
+ int (*data_sample_trigger)(struct iio_backend *back,
+ enum iio_backend_sample_trigger trigger);
struct iio_buffer *(*request_buffer)(struct iio_backend *back,
struct iio_dev *indio_dev);
void (*free_buffer)(struct iio_backend *back,
struct iio_buffer *buffer);
+ int (*extend_chan_spec)(struct iio_backend *back,
+ struct iio_chan_spec *chan);
+ int (*ext_info_set)(struct iio_backend *back, uintptr_t private,
+ const struct iio_chan_spec *chan,
+ const char *buf, size_t len);
+ int (*ext_info_get)(struct iio_backend *back, uintptr_t private,
+ const struct iio_chan_spec *chan, char *buf);
};
int iio_backend_chan_enable(struct iio_backend *back, unsigned int chan);
int devm_iio_backend_enable(struct device *dev, struct iio_backend *back);
int iio_backend_data_format_set(struct iio_backend *back, unsigned int chan,
const struct iio_backend_data_fmt *data);
+int iio_backend_data_source_set(struct iio_backend *back, unsigned int chan,
+ enum iio_backend_data_source data);
+int iio_backend_set_sampling_freq(struct iio_backend *back, unsigned int chan,
+ u64 sample_rate_hz);
+int iio_backend_test_pattern_set(struct iio_backend *back,
+ unsigned int chan,
+ enum iio_backend_test_pattern pattern);
+int iio_backend_chan_status(struct iio_backend *back, unsigned int chan,
+ bool *error);
+int iio_backend_iodelay_set(struct iio_backend *back, unsigned int lane,
+ unsigned int taps);
+int iio_backend_data_sample_trigger(struct iio_backend *back,
+ enum iio_backend_sample_trigger trigger);
int devm_iio_backend_request_buffer(struct device *dev,
struct iio_backend *back,
struct iio_dev *indio_dev);
+ssize_t iio_backend_ext_info_set(struct iio_dev *indio_dev, uintptr_t private,
+ const struct iio_chan_spec *chan,
+ const char *buf, size_t len);
+ssize_t iio_backend_ext_info_get(struct iio_dev *indio_dev, uintptr_t private,
+ const struct iio_chan_spec *chan, char *buf);
+int iio_backend_extend_chan_spec(struct iio_dev *indio_dev,
+ struct iio_backend *back,
+ struct iio_chan_spec *chan);
void *iio_backend_get_priv(const struct iio_backend *conv);
struct iio_backend *devm_iio_backend_get(struct device *dev, const char *name);
struct iio_backend *
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