diff options
Diffstat (limited to 'include/linux/iio/backend.h')
| -rw-r--r-- | include/linux/iio/backend.h | 123 |
1 files changed, 118 insertions, 5 deletions
diff --git a/include/linux/iio/backend.h b/include/linux/iio/backend.h index 8099759d7242..7f815f3fed6a 100644 --- a/include/linux/iio/backend.h +++ b/include/linux/iio/backend.h @@ -3,6 +3,7 @@ #define _IIO_BACKEND_H_ #include <linux/types.h> +#include <linux/iio/iio.h> struct iio_chan_spec; struct fwnode_handle; @@ -13,15 +14,19 @@ struct iio_dev; enum iio_backend_data_type { IIO_BACKEND_TWOS_COMPLEMENT, IIO_BACKEND_OFFSET_BINARY, + IIO_BACKEND_DATA_UNSIGNED, IIO_BACKEND_DATA_TYPE_MAX }; enum iio_backend_data_source { - IIO_BACKEND_INTERNAL_CONTINUOS_WAVE, + IIO_BACKEND_INTERNAL_CONTINUOUS_WAVE, IIO_BACKEND_EXTERNAL, + IIO_BACKEND_INTERNAL_RAMP_16BIT, IIO_BACKEND_DATA_SOURCE_MAX }; +#define iio_backend_debugfs_ptr(ptr) PTR_IF(IS_ENABLED(CONFIG_DEBUG_FS), ptr) + /** * IIO_BACKEND_EX_INFO - Helper for an IIO extended channel attribute * @_name: Attribute name @@ -54,6 +59,8 @@ enum iio_backend_test_pattern { IIO_BACKEND_NO_TEST_PATTERN, /* modified prbs9 */ IIO_BACKEND_ADI_PRBS_9A = 32, + /* modified prbs23 */ + IIO_BACKEND_ADI_PRBS_23A, IIO_BACKEND_TEST_PATTERN_MAX }; @@ -63,6 +70,20 @@ enum iio_backend_sample_trigger { IIO_BACKEND_SAMPLE_TRIGGER_MAX }; +enum iio_backend_interface_type { + IIO_BACKEND_INTERFACE_SERIAL_LVDS, + IIO_BACKEND_INTERFACE_SERIAL_CMOS, + IIO_BACKEND_INTERFACE_MAX +}; + +enum iio_backend_filter_type { + IIO_BACKEND_FILTER_TYPE_DISABLED, + IIO_BACKEND_FILTER_TYPE_SINC1, + IIO_BACKEND_FILTER_TYPE_SINC5, + IIO_BACKEND_FILTER_TYPE_SINC5_PLUS_COMP, + IIO_BACKEND_FILTER_TYPE_MAX +}; + /** * struct iio_backend_ops - operations structure for an iio_backend * @enable: Enable backend. @@ -71,6 +92,7 @@ enum iio_backend_sample_trigger { * @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. + * @data_source_get: Data source getter 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. @@ -81,6 +103,20 @@ enum iio_backend_sample_trigger { * @extend_chan_spec: Extend an IIO channel. * @ext_info_set: Extended info setter. * @ext_info_get: Extended info getter. + * @interface_type_get: Interface type. + * @data_size_set: Data size. + * @oversampling_ratio_set: Set Oversampling ratio. + * @read_raw: Read a channel attribute from a backend device + * @debugfs_print_chan_status: Print channel status into a buffer. + * @debugfs_reg_access: Read or write register value of backend. + * @filter_type_set: Set filter type. + * @interface_data_align: Perform the data alignment process. + * @num_lanes_set: Set the number of lanes enabled. + * @ddr_enable: Enable interface DDR (Double Data Rate) mode. + * @ddr_disable: Disable interface DDR (Double Data Rate) mode. + * @data_stream_enable: Enable data stream. + * @data_stream_disable: Disable data stream. + * @data_transfer_addr: Set data address. **/ struct iio_backend_ops { int (*enable)(struct iio_backend *back); @@ -91,6 +127,8 @@ struct iio_backend_ops { 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 (*data_source_get)(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, @@ -113,15 +151,51 @@ struct iio_backend_ops { 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 (*interface_type_get)(struct iio_backend *back, + enum iio_backend_interface_type *type); + int (*data_size_set)(struct iio_backend *back, unsigned int size); + int (*oversampling_ratio_set)(struct iio_backend *back, + unsigned int chan, unsigned int ratio); + int (*read_raw)(struct iio_backend *back, + struct iio_chan_spec const *chan, int *val, int *val2, + long mask); + int (*debugfs_print_chan_status)(struct iio_backend *back, + unsigned int chan, char *buf, + size_t len); + int (*debugfs_reg_access)(struct iio_backend *back, unsigned int reg, + unsigned int writeval, unsigned int *readval); + int (*filter_type_set)(struct iio_backend *back, + enum iio_backend_filter_type type); + int (*interface_data_align)(struct iio_backend *back, u32 timeout_us); + int (*num_lanes_set)(struct iio_backend *back, unsigned int num_lanes); + int (*ddr_enable)(struct iio_backend *back); + int (*ddr_disable)(struct iio_backend *back); + int (*data_stream_enable)(struct iio_backend *back); + int (*data_stream_disable)(struct iio_backend *back); + int (*data_transfer_addr)(struct iio_backend *back, u32 address); +}; + +/** + * struct iio_backend_info - info structure for an iio_backend + * @name: Backend name. + * @ops: Backend operations. + */ +struct iio_backend_info { + const char *name; + const struct iio_backend_ops *ops; }; int iio_backend_chan_enable(struct iio_backend *back, unsigned int chan); int iio_backend_chan_disable(struct iio_backend *back, unsigned int chan); int devm_iio_backend_enable(struct device *dev, struct iio_backend *back); +int iio_backend_enable(struct iio_backend *back); +void iio_backend_disable(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_data_source_get(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, @@ -136,22 +210,61 @@ int iio_backend_data_sample_trigger(struct iio_backend *back, int devm_iio_backend_request_buffer(struct device *dev, struct iio_backend *back, struct iio_dev *indio_dev); +int iio_backend_filter_type_set(struct iio_backend *back, + enum iio_backend_filter_type type); +int iio_backend_interface_data_align(struct iio_backend *back, u32 timeout_us); +int iio_backend_num_lanes_set(struct iio_backend *back, unsigned int num_lanes); +int iio_backend_ddr_enable(struct iio_backend *back); +int iio_backend_ddr_disable(struct iio_backend *back); +int iio_backend_data_stream_enable(struct iio_backend *back); +int iio_backend_data_stream_disable(struct iio_backend *back); +int iio_backend_data_transfer_addr(struct iio_backend *back, u32 address); 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, +int iio_backend_interface_type_get(struct iio_backend *back, + enum iio_backend_interface_type *type); +int iio_backend_data_size_set(struct iio_backend *back, unsigned int size); +int iio_backend_oversampling_ratio_set(struct iio_backend *back, + unsigned int chan, + unsigned int ratio); +int iio_backend_read_raw(struct iio_backend *back, + struct iio_chan_spec const *chan, int *val, int *val2, + long mask); +int iio_backend_extend_chan_spec(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 *devm_iio_backend_fwnode_get(struct device *dev, + const char *name, + struct fwnode_handle *fwnode); struct iio_backend * __devm_iio_backend_get_from_fwnode_lookup(struct device *dev, struct fwnode_handle *fwnode); int devm_iio_backend_register(struct device *dev, - const struct iio_backend_ops *ops, void *priv); + const struct iio_backend_info *info, void *priv); + +static inline int iio_backend_read_scale(struct iio_backend *back, + struct iio_chan_spec const *chan, + int *val, int *val2) +{ + return iio_backend_read_raw(back, chan, val, val2, IIO_CHAN_INFO_SCALE); +} + +static inline int iio_backend_read_offset(struct iio_backend *back, + struct iio_chan_spec const *chan, + int *val, int *val2) +{ + return iio_backend_read_raw(back, chan, val, val2, + IIO_CHAN_INFO_OFFSET); +} +ssize_t iio_backend_debugfs_print_chan_status(struct iio_backend *back, + unsigned int chan, char *buf, + size_t len); +void iio_backend_debugfs_add(struct iio_backend *back, + struct iio_dev *indio_dev); #endif |