Video and Vision Processing Suite Intel® FPGA IP User Guide

ID 683329
Date 9/30/2024
Public
Document Table of Contents
1. About the Video and Vision Processing Suite 2. Getting Started with the Video and Vision Processing IPs 3. Video and Vision Processing IPs Functional Description 4. Video and Vision Processing IP Interfaces 5. Video and Vision Processing IP Registers 6. Video and Vision Processing IPs Software Programming Model 7. Protocol Converter Intel® FPGA IP 8. 1D LUT Intel® FPGA IP 9. 3D LUT Intel® FPGA IP 10. Adaptive Noise Reduction Intel® FPGA IP 11. Advanced Test Pattern Generator Intel® FPGA IP 12. AXI-Stream Broadcaster Intel® FPGA IP 13. Bits per Color Sample Adapter Intel® FPGA IP 14. Black Level Correction Intel® FPGA IP 15. Black Level Statistics Intel® FPGA IP 16. Chroma Key Intel® FPGA IP 17. Chroma Resampler Intel® FPGA IP 18. Clipper Intel® FPGA IP 19. Clocked Video Input Intel® FPGA IP 20. Clocked Video to Full-Raster Converter Intel® FPGA IP 21. Clocked Video Output Intel® FPGA IP 22. Color Plane Manager Intel® FPGA IP 23. Color Space Converter Intel® FPGA IP 24. Defective Pixel Correction Intel® FPGA IP 25. Deinterlacer Intel® FPGA IP 26. Demosaic Intel® FPGA IP 27. FIR Filter Intel® FPGA IP 28. Frame Cleaner Intel® FPGA IP 29. Full-Raster to Clocked Video Converter Intel® FPGA IP 30. Full-Raster to Streaming Converter Intel® FPGA IP 31. Genlock Controller Intel® FPGA IP 32. Generic Crosspoint Intel® FPGA IP 33. Genlock Signal Router Intel® FPGA IP 34. Guard Bands Intel® FPGA IP 35. Histogram Statistics Intel® FPGA IP 36. Interlacer Intel® FPGA IP 37. Mixer Intel® FPGA IP 38. Pixels in Parallel Converter Intel® FPGA IP 39. Scaler Intel® FPGA IP 40. Stream Cleaner Intel® FPGA IP 41. Switch Intel® FPGA IP 42. Text Box Intel® FPGA IP 43. Tone Mapping Operator Intel® FPGA IP 44. Test Pattern Generator Intel® FPGA IP 45. Unsharp Mask Intel® FPGA IP 46. Video and Vision Monitor Intel FPGA IP 47. Video Frame Buffer Intel® FPGA IP 48. Video Frame Reader Intel FPGA IP 49. Video Frame Writer Intel FPGA IP 50. Video Streaming FIFO Intel® FPGA IP 51. Video Timing Generator Intel® FPGA IP 52. Vignette Correction Intel® FPGA IP 53. Warp Intel® FPGA IP 54. White Balance Correction Intel® FPGA IP 55. White Balance Statistics Intel® FPGA IP 56. Design Security 57. Document Revision History for Video and Vision Processing Suite User Guide

41.5. Switch IP Software API

The IP includes software for run-time control. The IP does not fit any of the generic device models provided by the Nios II HAL and it exposes a set of dedicated accessors to the control and status registers. The IP driver structure inherits the base driver structure so all common methods defined in Video and Vision Processing IPs Software API are applicable.

Register definition header file: intel_vvp_switch_regs.h

Include file: intel_vvp_switch.h

Table 772.  Switch IP Software API
Name Description
intel_vvp_switch_init Initialize the Switch instance
intel_vvp_switch_get_lite_mode Returns if Lite mode is on
intel_vvp_switch_get_debug_enabled Returns if Debug features is on

intel_vvp_switch_has_uninterrupted_inputs

Returns if the Switch input is uninterruptible and always provides video data

intel_vvp_switch_has_auto_consume

Returns if the Switch is using a two-phase rerouting to avoid backpressure at inputs

intel_vvp_switch_get_num_inputs

Returns the number of inputs
intel_vvp_switch_get_num_outputs Returns the number of outputs
intel_vvp_switch_is_running Returns true if the IP is currently processing video data
intel_vvp_switch_get_commit_status Returns true if the IP has uncommitted writes
intel_vvp_switch_get_status Reads the status register
intel_vvp_switch_set_input_config Configures an input behavior (enabled, disabled, consumed)
intel_vvp_switch_get_input_config

Returns the selected input behavior

intel_vvp_switch_set_output_config

Configures an output behavior

intel_vvp_switch_get_output_config Returns the selected output behavior
intel_vvp_switch_commit_writes Commit all outstanding writes

enum eIntelVvpSwitchInputConfig

Members

kIntelVvpSwitchInputDisabled (0) - input disabled

kIntelVvpSwitchInputEnabled (1) - input enabled

kIntelVvpSwitchInputConsumed (3) - input consumed

kIntelVvpSwitchInputConfigInvalid (-1) - invalid input configuration (to indicate errors)

Description

Enumeration for the configurable input behaviors

intel_vvp_switch_init

Prototype
int intel_vvp_switch_init(intel_vvp_switch_instance *instance, intel_vvp_core_base base);
Description

Initializes a Switch instance. The initialization stops early if the vendor ID or product ID the IP reads at the base address are not a match or if the register map version is not supported. Otherwise, the function proceeds to read and store the IP compile-time parameterization. The instance is not fully initialized and the application should not use it further if returning a non-zero error code.

Arguments

instance - pointer to the intel_vvp_switch_instance software driver instance structure

base - base address of the register map

Returns

kIntelVvpCoreOk (0) in case of success, a negative error code in case of error

kIntelVvpCoreVidErr if the vendor id of the core is not the Intel FPGA vendor ID (0x6AF7).

kIntelVvpCorePidErr if the product_id does not match with the Switch product ID

kIntelVvpCoreInstanceErr if the instance is a null pointer

kIntelVvpSwitchRegMapVersionErr if the register map is not supported

intel_vvp_switch_get_lite_mode

Prototype
bool intel_vvp_switch_get_lite_mode(intel_vvp_switch_instance *instance);
Description

Returns the value of the LITE_MODE register. The instance must be a valid intel_vvp_switch_instance fully initialized

Arguments

instance - pointer to the intel_vvp_switch_instance software driver instance structure

Returns

true if the IP is in lite mode

intel_vvp_switch_get_debug_enabled

Prototype
 bool intel_vvp_switch_get_debug_enabled(intel_vvp_switch_instance *instance);
Description

Returns the value of the DEBUG_ENABLED register. The instance must be a valid intel_vvp_switch_instance fully initialized.

Arguments

instance - pointer to the intel_vvp_switch_instance software driver instance structure

Returns

true if the IP is parameterized with debug features enabled

intel_vvp_switch_has_uninterrupted_inputs

Prototype
 bool intel_vvp_switch_has_uninterrupted_inputs(intel_vvp_switch_instance *instance);
Description

Returns the value of the UNINTERRUPTED_INPUTS register. The instance must be a valid intel_vvp_switch_instance fully initialized.

Arguments

instance - pointer to the intel_vvp_switch_instance software driver instance structure

Returns

true if the IP was configured to assume uninterruptible inputs.

intel_vvp_switch_has_auto_consume

Prototype
 bool intel_vvp_switch_has_auto_consume(intel_vvp_switch_instance *instance);
Description

Returns the value of the AUTO_CONSUME register. The instance must be a valid intel_vvp_switch_instance fully initialized.

Arguments

instance - pointer to the intel_vvp_switch_instance software driver instance structure

Returns

true is the IP was configured to automatically consume waiting inputs during a switch

intel_vvp_switch_get_num_inputs

Prototype
 uint8_t intel_vvp_switch_get_num_inputs(intel_vvp_switch_instance *instance);
Description

Returns the value of the NUM_INPUTS register. The instance must be a valid intel_vvp_switch_instance fully initialized.

Arguments

instance - pointer to the intel_vvp_switch_instance software driver instance structure

Returns

The number of inputs

intel_vvp_switch_get_num_outputs

Prototype
 uint8_t intel_vvp_switch_get_num_outputs(intel_vvp_switch_instance* instance);
Description

Returns the value of the NUM_OUTPUTS register. The instance must be a valid intel_vvp_switch_instance fully initialized.

Arguments

instance - pointer to the intel_vvp_switch_instance software driver instance structure

Returns

The number of outputs

intel_vvp_switch_is_running

Prototype
 bool intel_vvp_switch_is_running(intel_vvp_switch_instance* instance);
Description

Reads and returns the running bit of the STATUS register. The instance must be a valid intel_vvp_switch_instance fully initialized.

Arguments

instance - pointer to the intel_vvp_switch_instance software driver instance structure

Returns

True if the IP is currently receiving or storing an input field, false when between two input fields

intel_vvp_switch_get_commit_status

Prototype
 bool intel_vvp_switch_get_commit_status(intel_vvp_clipper_instance* instance);
Description

Reads and returns the commit pending bit of the STATUS register. The instance must be a valid intel_vvp_switch_instance fully initialized and configured in full mode.

Arguments

instance - pointer to the intel_vvp_switch_instance software driver instance structure

Returns

True is the IP is configured in full mode and if the agent interface contains uncommitted writes.

intel_vvp_switch_get_status

Prototype
 uint32_t intel_vvp_switch_get_status(intel_vvp_switch_instance* instance);
Description

Reads the STATUS register. The instance must be a valid intel_vvp_switch_instance fully initialized.

Arguments

instance - pointer to the intel_vvp_switch_instance software driver instance structure

Returns

The content of the STATUS register

intel_vvp_switch_set_input_config

Prototype
 int intel_vvp_switch_set_input_config(intel_vvp_switch_instance *instance, uint8_t input, eIntelVvpSwitchInputConfig input_config)
Description

Changes the configuration for a chosen input. The instance must be a valid intel_vvp_switch_instance fully initialized and the input must be valid

Arguments

instance - pointer to the intel_vvp_switch_instance software driver instance structure

input - selected input in the range [0..num_inputs-1] where num_inputs is the number of configured inputs

input_config - new input configuration (enabled, disabled, consumed). An input that is enabled but not tied to any output is automatically consumed

Returns

kIntelVvpCoreOk for success, negative error code in case of failures

kIntelVvpCoreInstanceErr if the instance is invalid

kIntelVvpSwitchParameterErr if the input is out-of-range or the input_config parameter is invalid

intel_vvp_switch_get_input_config

Prototype
eIntelVvpSwitchInputConfig intel_vvp_switch_get_input_config(intel_vvp_switch_instance *instance, uint8_t input)
Description

Returns the current configuration for a requested input

Arguments

instance - pointer to the intel_vvp_switch_instance software driver instance structure

input - chosen input in the range [0..num_inputs-1] where num_inputs is the number of configured inputs

Returns

The configuration for the selected input, kIntelVvpSwitchInputConfigInvalid in case of error (invalid instance, debug not enabled, invalid input)

intel_vvp_switch_set_output_config

Prototype
int intel_vvp_switch_set_output_config(intel_vvp_switch_instance *instance, uint8_t output, bool enabled, uint8_t input)
Description

Change the configuration of a selected output. The instance must be a valid intel_vvp_switch_instance fully initialized. The output, and the optional input, must be valid

Arguments

instance - pointer to the intel_vvp_switch_instance software driver instance structure

output - chosen output in the range [0..num_outputs-1] where num_outputs is the number of configured outputs

enabled - true to enable the output

input - if the output is enabled, this is the chosen input in the range [0..num_inputs-1] where num_inputs is the number of configured inputs

Returns

kIntelVvpCoreOk for success, negative error code in case of failures

kIntelVvpCoreInstanceErr if the instance is invalid

kIntelVvpSwitchParameterErr if the output and or the input is invalid. Note that selecting an invalid input disables the output

intel_vvp_switch_get_output_config

Prototype
 int intel_vvp_switch_get_output_config(intel_vvp_switch_instance *instance, uint8_t output)
Description

Returns the current configuration for a requested output. The instance must be a valid intel_vvp_switch_instance fully initialized and with debug enabled. The output must be valid

Arguments

instance - pointer to the intel_vvp_switch_instance software driver instance structure

output - chosen output in the range [0..num_outputs-1] where num_outputs is the number of configured outputs

Returns

The selected input for the given output, -1 if the output is disabled

Other negative values are for errors:

kIntelVvpCoreInstanceErr if the instance is invalid or not configured for debug

kIntelVvpSwitchParameterErr if the output is invalid

intel_vvp_switch_commit_writes

Prototype
 int intel_vvp_switch_commit_writes(intel_vvp_switch_instance* instance)
Description

Commits all pending writes before processing the next field. The instance must be valid and parameterized in full mode.

Arguments

instance - pointer to the intel_vvp_switch_instance software driver instance structure

Returns

kIntelVvpCoreOk (0) for success, negative error code otherwise