Data Collector Interface

Detailed Description

Interface for RAI Data Collector.

Summary

The rai data collector interface provides functionality to collect data from differnet channels using snapshot mode, data feed mode or mixed mode.

Data Structures
struct	rai_data_collector_error_callback_args_t
struct	rai_data_collector_frame_buffer_t
struct	rai_data_collector_callback_args_t
struct	rai_data_collector_snapshot_cfg_t
struct	rai_data_collector_data_feed_cfg_t
struct	rai_data_collector_cfg_t
struct	rai_data_collector_api_t
struct	rai_data_collector_instance_t

Typedefs
typedef void	rai_data_collector_ctrl_t

Enumerations
enum	rai_data_collector_data_type_t
enum	rai_data_collector_error_event_t

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Data Structure Documentation

rai_data_collector_error_callback_args_t

struct rai_data_collector_error_callback_args_t

Error callback function parameter

Data Fields
uint8_t	instance_id	Instance ID.
rai_data_collector_error_event_t	event	Error event.

rai_data_collector_frame_buffer_t

struct rai_data_collector_frame_buffer_t

Frame buffer structure

Data Fields
void *	p_buf	Pointer to data buffer.
rai_data_collector_data_type_t	data_type	Data samples in the buffer.

rai_data_collector_callback_args_t

struct rai_data_collector_callback_args_t

Data ready callback function parameter

Data Fields
uint8_t	frames	Number of frame buffers.
uint8_t	instance_id	Instance id.
uint32_t	frame_buf_len	Frame buffers shall have the same amount of data sample.
rai_data_collector_frame_buffer_t const *	p_frame_buf	Array of frame buffers.
void *	p_context	Pointer to the user-provided context.

rai_data_collector_snapshot_cfg_t

struct rai_data_collector_snapshot_cfg_t

Snapshot mode configuration

Data Fields
uint8_t	channels	Total snapshot mode channels.
uint16_t	transfer_len	DTC transfer length.
timer_instance_t const *	p_timer	Pointer to timer instance.
transfer_instance_t const *	p_transfer	Pointer to DTC instance.

rai_data_collector_data_feed_cfg_t

struct rai_data_collector_data_feed_cfg_t

Data feed mode configuration

Data Fields
uint8_t	channels	Total data feed mode channels.

rai_data_collector_cfg_t

struct rai_data_collector_cfg_t

RAI Data Collector general configuration

Data Fields
uint32_t	channels: 8
	Total number of channels.
uint32_t	instance_id: 8
	Instance id.
uint32_t	virt_channels: 8
	Virtual channels.
uint32_t	reserved: 8
	Reserved.
uint32_t	channel_ready_mask
	Bitmask of configured channels.
uint32_t	required_frame_len
	Length of each frame buffer.
rai_data_collector_snapshot_cfg_t const *	p_snapshot_cfg
	Pointer to snapshot mode configuration structure.
rai_data_collector_data_feed_cfg_t const *	p_data_feed_cfg
	Pointer to data feed mode configuration structure.
void *	p_extend
	Pointer to extended configuration structure.
void(*	p_callback )(rai_data_collector_callback_args_t const *p_args)
	Pointer to the callback function when data is collected.
void(*	p_error_callback )(rai_data_collector_error_callback_args_t const *p_args)
	Pointer to the callback function when there is an error.
void *	p_context
	Pointer to the user-provided context.

rai_data_collector_api_t

struct rai_data_collector_api_t

RAI Data Collector interface API.

Data Fields
fsp_err_t(*	open )(rai_data_collector_ctrl_t *const p_ctrl, rai_data_collector_cfg_t const *const p_cfg)
fsp_err_t(*	snapshotChannelRegister )(rai_data_collector_ctrl_t *const p_ctrl, uint8_t channel, void const *p_src)
fsp_err_t(*	bufferRelease )(rai_data_collector_ctrl_t *const p_ctrl)
fsp_err_t(*	bufferReset )(rai_data_collector_ctrl_t *const p_ctrl)
fsp_err_t(*	snapshotStart )(rai_data_collector_ctrl_t *const p_ctrl)
fsp_err_t(*	snapshotStop )(rai_data_collector_ctrl_t *const p_ctrl)
fsp_err_t(*	channelBufferGet )(rai_data_collector_ctrl_t *const p_ctrl, uint8_t channel, void **pp_buf)
fsp_err_t(*	channelWrite )(rai_data_collector_ctrl_t *const p_ctrl, uint8_t channel, const void *p_buf, uint32_t len)
fsp_err_t(*	close )(rai_data_collector_ctrl_t *const p_ctrl)

Field Documentation

open

fsp_err_t(* rai_data_collector_api_t::open) (rai_data_collector_ctrl_t *const p_ctrl, rai_data_collector_cfg_t const *const p_cfg)

Initialize Data Collector module instance.

Note

To reopen after calling this function, call rai_data_collector_api_t::close first.

Parameters

[in]	p_ctrl	Pointer to control handle structure
[in]	p_cfg	Pointer to configuration structure

snapshotChannelRegister

fsp_err_t(* rai_data_collector_api_t::snapshotChannelRegister) (rai_data_collector_ctrl_t *const p_ctrl, uint8_t channel, void const *p_src)

Config transfer source address for snapshot mode channel

Parameters

[in]	p_ctrl	Pointer to control handle structure
[in]	p_src	Pointer to transfer source address

bufferRelease

fsp_err_t(* rai_data_collector_api_t::bufferRelease) (rai_data_collector_ctrl_t *const p_ctrl)

Release frame buffers by upper modules

Parameters

[in]	p_ctrl	Pointer to control handle structure
[in]	channel	Which snapshot mode channel
[in]	p_src	Chanenl source buffer address

bufferReset

fsp_err_t(* rai_data_collector_api_t::bufferReset) (rai_data_collector_ctrl_t *const p_ctrl)

Reset internal buffers

Parameters

[in]

p_ctrl

Pointer to control handle structure

snapshotStart

fsp_err_t(* rai_data_collector_api_t::snapshotStart) (rai_data_collector_ctrl_t *const p_ctrl)

Starts snapshot mode.

Parameters

[in]

p_ctrl

Pointer to control handle structure

snapshotStop

fsp_err_t(* rai_data_collector_api_t::snapshotStop) (rai_data_collector_ctrl_t *const p_ctrl)

Stops snapshot mode.

Parameters

[in]

p_ctrl

Pointer to control handle structure

channelBufferGet

fsp_err_t(* rai_data_collector_api_t::channelBufferGet) (rai_data_collector_ctrl_t *const p_ctrl, uint8_t channel, void **pp_buf)

Get the PING or PONG buffer address for data transfer. For data feed mode only.

Parameters

[in]	p_ctrl	Pointer to control handle structure
[in]	channel	Which data feed mode channel
[out]	pp_buf	Returned buffer address

channelWrite

fsp_err_t(* rai_data_collector_api_t::channelWrite) (rai_data_collector_ctrl_t *const p_ctrl, uint8_t channel, const void *p_buf, uint32_t len)

Write data to frame buffer using CPU copy. For data feed mode only.

Parameters

[in]	p_ctrl	Pointer to control handle structure
[in]	channel	Which data feed mode channel
[in]	p_buf	Data buffer
[in]	len	Length of data buffer in data samples

close

fsp_err_t(* rai_data_collector_api_t::close) (rai_data_collector_ctrl_t *const p_ctrl)

Close the specified Data Collector module instance.

Parameters

[in]

p_ctrl

Pointer to control handle structure

rai_data_collector_instance_t

struct rai_data_collector_instance_t

This structure encompasses everything that is needed to use an instance of this interface.

Data Fields
rai_data_collector_ctrl_t *	p_ctrl	Pointer to the control structure for this instance.
rai_data_collector_cfg_t const *	p_cfg	Pointer to the configuration structure for this instance.
rai_data_collector_api_t const *	p_api	Pointer to the API structure for this instance.

Typedef Documentation

rai_data_collector_ctrl_t

typedef void rai_data_collector_ctrl_t

Data Collector control block. Allocate an instance specific control block to pass into the Data Collector API calls.

Enumeration Type Documentation

rai_data_collector_data_type_t

enum rai_data_collector_data_type_t

Data types

Enumerator
RAI_DATA_COLLECTOR_DATA_TYPE_INT8_T	Signed 8-bit.
RAI_DATA_COLLECTOR_DATA_TYPE_UINT8_T	Unsigned 8-bit.
RAI_DATA_COLLECTOR_DATA_TYPE_INT16_T	Signed 16-bit.
RAI_DATA_COLLECTOR_DATA_TYPE_UINT16_T	Unsigned 16-bit.
RAI_DATA_COLLECTOR_DATA_TYPE_INT32_T	Signed 32-bit.
RAI_DATA_COLLECTOR_DATA_TYPE_UINT32_T	Unsigned 32-bit.
RAI_DATA_COLLECTOR_DATA_TYPE_FLOAT	Float.
RAI_DATA_COLLECTOR_DATA_TYPE_DOUBLE	Double.

rai_data_collector_error_event_t

enum rai_data_collector_error_event_t

Data Collector module error events