K230 SDK API Reference

• K230 Intercore Communication API Reference
  • Directory
  • preface
    • Overview
    • Reader object
    • Definition of acronyms
    • Revision history
  • Overview
    • Overview
      • Internuclear communication implementation principle
      • Memory Space Usage
    • Function Description
      • IPCMSG
      • DATAFIFO
  • API Reference
    • IPCMSG
      • kd_ipcmsg_add_service
      • kd_ipcmsg_del_service
      • kd_ipcmsg_try_connect
      • kd_ipcmsg_connect
      • kd_ipcmsg_disconnect
      • kd_ipcmsg_is_connect
      • kd_ipcmsg_send_only
      • kd_ipcmsg_send_async
      • kd_ipcmsg_send_sync
      • kd_ipcmsg_run
      • kd_ipcmsg_create_message
      • kd_ipcmsg_create_resp_message
      • kd_ipcmsg_destroy_message
    • DATAFIFO
      • kd_datafifo_open
      • kd_datafifo_open_by_addr
      • kd_datafifo_close
      • kd_datafifo_read
      • kd_datafifo_write
      • kd_datafifo_cmd
  • Data Type
    • IPCMSG
      • K_IPCMSG_MAX_CONTENT_LEN
      • K_IPCMSG_PRIVDATA_NUM
      • K_IPCMSG_INVALID_MSGID
      • k_ipcmsg_connect_s
      • k_ipcmsg_messsage_s
      • k_ipcmsg_handle_fn_ptr
    • DATAFIFO
      • k_datafifo_handle
      • K_DATAFIFO_INVALID_HANDLE
      • K_DATAFIFO_RELEASESTREAM_FN_PTR
      • K_DATAFIFO_OPEN_MODE_E
      • k_datafifo_params_s
      • k_datafifo_cmd_e
  • Error codes
    • IPCMSG
    • DATAFIFO
  • Debugging information
    • ipcm
• K230 System Control MAPI Reference
  • Directory
  • preface
    • Overview
    • Reader object
    • Definition of acronyms
    • Revision history
  • Overview
    • Overview
    • Function Description
  • API Reference
    • kd_mapi_sys_init
    • kd_mapi_sys_deinit
    • kd_mapi_media_init
    • kd_mapi_media_deinit
    • kd_mapi_alloc_buffer
    • kd_mapi_free_buffer
    • kd_mapi_sys_get_vb_block
    • kd_mapi_sys_release_vb_block
  • Data Type
    • k_mapi_mod_id_e
    • k_mapi_media_config_t
    • k_mapi_media_attr_t
  • Error codes
• K230 MultimediaMiddleware API Reference
  • Directory
  • Overview
    • Overview
    • Module Description
      • Video intercom
      • Player
      • Audio Mixer
      • fMP4(Mp4) muxer and demuxer
  • API Reference
    • Video intercom Server
      • KdRtspServer::Init
      • KdRtspServer::DeInit
      • KdRtspServer::CreateSession
      • KdRtspServer::DestroySession
      • KdRtspServer::Start
      • KdRtspServer::Stop
      • KdRtspServer::SendVideoData
      • KdRtspServer::SendAudioData
    • Video intercom Client
      • KdRtspClient::Init
      • KdRtspClient::Deinit
      • KdRtspClient::Open
      • KdRtspClient::Close
      • KdRtspClient::SendAudioData
    • Player
      • kd_player_init
      • kd_player_deinit
      • kd_player_setdatasource
      • kd_player_regcallback
      • kd_player_start
      • kd_player_stop
    • Audio Mixer
      • kd_mix_g711a_audio
      • kd_mix_g711u_audio
    • MP4 Muxer and Demuxer
      • kd_mp4_create
      • kd_mp4_destroy
      • kd_mp4_create_track
      • kd_mp4_destroy_tracks
      • kd_mp4_write_frame
      • kd_mp4_get_file_info
      • kd_mp4_get_track_by_index
      • kd_mp4_get_frame
• K230 DMA API reference
  • Directory
  • preface
    • Overview
    • Reader object
    • Definition of acronyms
    • Revision history
  • Overview
    • Overview
    • Function Description
      • gdma
      • SDMA
  • API Reference
    • DMA Use
      • kd_mpi_dma_set_dev_attr
      • kd_mpi_dma_get_dev_attr
      • kd_mpi_dma_start_dev
      • kd_mpi_dma_stop_dev
      • kd_mpi_dma_set_chn_attr
      • kd_mpi_dma_get_chn_attr
      • kd_mpi_dma_start_chn
      • kd_mpi_dma_stop_chn
      • kd_mpi_dma_send_frame
      • kd_mpi_dma_get_frame
      • kd_mpi_dma_release_frame
  • Data type
    • Common Data Types
      • DMA_MAX_DEV_NUMS
      • DMA_MAX_CHN_NUMS
      • k_dma_mode_e
      • k_dma_dev_attr_t
      • k_dma_chn_attr_u
      • k_video_frame_info
      • k_video_frame
    • GDMA channel data type
      • GDMA_MAX_CHN_NUMS
      • k_gdma_rotation_e
      • k_pixel_format_dma_e
      • k_gdma_chn_attr_t
    • SDMA channel data type
      • SDMA_MAX_CHN_NUMS
      • k_sdma_data_mode_e
      • k_sdma_chn_attr_t
  • Error codes
    • DMA error code
  • Debugging information
    • Overview
    • System Binding
      • System binding debugging information
  • Demo description
    • Unbound mode demo
    • Binding mode demo
• K230 DPU API reference
  • Directory
  • preface
    • Overview
    • Reader object
    • Definition of acronyms
    • Revision history
  • Overview
    • Overview
    • Function Description
      • Binding mode invokes the process
      • Invoke the process in unbound mode
  • API Reference
    • DPU usage
      • kd_mpi_dpu_init
      • kd_mpi_dpu_delete
      • kd_mpi_dpu_parse_file
      • kd_mpi_dpu_set_dev_attr
      • kd_mpi_dpu_get_dev_attr
      • kd_mpi_dpu_set_ref_image
      • kd_mpi_dpu_set_processed_ref_image
      • kd_mpi_dpu_set_template_image
      • kd_mpi_dpu_start_dev
      • kd_mpi_dpu_set_chn_attr
      • kd_mpi_dpu_get_chn_attr
      • kd_mpi_dpu_start_chn
      • kd_mpi_dpu_stop_chn
      • kd_mpi_dpu_send_frame
      • kd_mpi_dpu_get_frame
      • kd_mpi_dpu_release_frame
  • Data Type
    • Common Data Types
      • k_dpu_init_t
      • k_dpu_dev_param_t
      • k_dpu_lcn_param_t
      • k_dpu_ir_param_t
      • k_dpu_user_space_t
      • k_dpu_dev_attr_t
      • k_dpu_chn_lcn_attr_t
      • k_dpu_chn_ir_attr_t
      • k_dpu_chn_result_u
      • k_dpu_chn_lcn_result_t
      • k_dpu_chn_ir_result_t
      • k_dpu_disp_out_t
      • k_dpu_depth_out_t
      • k_dpu_ir_out_t
      • k_dpu_qlt_out_t
    • Long and short period parameter types
      • k_dpu_long_parameter_t
      • k_dpu_short_parameter_t
  • Error codes
    • dpu error code
  • Debugging information
    • Overview
    • Debugging Information
  • Demo description
    • Introduction to dpu demo
    • Feature 说明
      • Unbound Mode
      • Binding Mode
      • Compilation and Execution
• K230 FFT API Reference
  • Directory
  • preface
    • Overview
    • Reader object
    • Definition of acronyms
    • Revision history
  • Introduction to the K230 FFT
  • API Reference
    • kd_mpi_fft_or_ifft
    • kd_mpi_fft_args_init
    • kd_mpi_fft_args_2_array
    • kd_mpi_fft
    • kd_mpi_ifft
  • Data structure
    • k_fft_args_st
    • k_fft_mode_e
    • k_fft_input_mode_e
    • k_fft_out_mode_e
• K230 GPU API reference
  • Directory
  • preface
    • Overview
    • Reader
    • Definition of acronyms
    • Revision history
  • Function introduction
  • Data flow
  • Software Interface
    • Main Types and Definitions
      • Parameter types
      • Error Type vg_lite_error_t
      • Feature Enumeration
    • GPU control
      • Context initialization and control functions
        • vg_lite_set_command_buffer_size
        • vg_lite_init
        • vg_lite_close
        • vg_lite_finish
        • vg_lite_flush
      • Pixel buffers
        • Memory alignment requirements
          • Source image alignment requirements
          • Render target buffer alignment requirements
        • Pixel caching
      • Enumeration Types
        • vg_lite_buffer_format_t
        • vg_lite_buffer_image_mode_t
        • vg_lite_buffer_layout_t
        • vg_lite_buffer_transparency_mode_t
      • Structures
        • vg_lite_buffer_t
      • Functions
        • vg_lite_allocate
        • vg_lite_free
        • vg_lite_buffer_upload
        • vg_lite_map
        • vg_lite_unmap
        • vg_lite_set_CLUT
    • Matrix
      • Structs
        • vg_lite_matrix_t
      • Functions
        • vg_lite_identity
        • vg_lite_perspective
        • vg_lite_rotate
        • vg_lite_scale
        • vg_lite_translate
    • BLITs for synthesis and mixing
      • Enumeration Types
        • vg_lite_blend_t
        • vg_lite_filter_t
        • vg_lite_global_alpha_t
      • Structures
        • vg_lite_rectangle_t
        • vg_lite_point_t
        • vg_lite_point4_t
      • Functions
        • vg_lite_blit
        • vg_lite_blit_rect
        • vg_lite_get_transform_matrix
        • vg_lite_clear
      • Global Alpha Function
        • vg_lite_set_image_global_alpha
        • vg_lite_set_dest_global_alpha
    • Vector Path Control
      • Enumeration Types
        • vg_lite_quality_t
      • Structs
        • vg_lite_hw_memory
        • vg_lite_path_t
          • Special description of path objects
      • Functions
        • vg_lite_path_calc_length
        • vg_lite_path_append
        • vg_lite_init_path
        • vg_lite_init_arc_path
        • vg_lite_upload_path
        • vg_lite_clear_path
      • Vector Path Opcodes
    • Vector-based drawing operations
      • Enumeration Types
        • vg_lite_fill_t
        • vg_lite_pattern_mode_t
      • Structures
        • v3.6.2.1 g_lite_color_ramp_t
        • vg_lite_linear_gradient_t
      • Functions
        • vg_lite_draw
        • vg_lite_draw_gradient
        • vg_lite_draw_pattern
      • Linear gradient initialization and control functions
        • vg_lite_init_grad
        • vg_lite_set_grad
        • vg_lite_update_grad
        • vg_lite_get_grad_matrix
        • vg_lite_clear_grad
  • Constraints
  • Performance recommendations and best practices
    • Cache vs Non-cache
    • Memory Usage
    • Drawing Process
  • Examples
    • tiger
    • linear degrees
    • imgIndex
    • vglite_drm
    • vglite_cube
• K230 SHA256 API Reference
  • Directory
  • Function Introduction
  • API Reference
    • kd_mpi_cipher_sha256
  • Debugging and Printing Information
• K230 VICAP API Reference
  • Directory
  • preface
    • Overview
    • Reader object
    • Definition of acronyms
    • Revision history
  • Overview
    • Overview
    • Function Description
      • VICAP
      • Sensor
  • API Reference
    • VICAP
      • kd_mpi_vicap_get_sensor_info
      • kd_mpi_vicap_set_dev_attr
      • kd_mpi_vicap_get_dev_attr
      • kd_mpi_vicap_set_chn_attr
      • kd_mpi_vicap_get_chn_attr
      • kd_mpi_vicap_init
      • kd_mpi_vicap_deinit
      • kd_mpi_vicap_start_stream
      • kd_mpi_vicap_stop_stream
      • kd_mpi_vicap_dump_frame
      • kd_mpi_vicap_dump_release
    • Sensor
      • kd_mpi_sensor_open
      • kd_mpi_sensor_close
      • kd_mpi_sensor_power_set
      • kd_mpi_sensor_id_get
      • kd_mpi_sensor_init
      • kd_mpi_sensor_reg_read
      • kd_mpi_sensor_reg_write
      • kd_mpi_sensor_mode_get
      • kd_mpi_sensor_mode_set
      • kd_mpi_sensor_stream_enable
      • kd_mpi_sensor_again_set
      • kd_mpi_sensor_again_get
      • kd_mpi_sensor_dgain_set
      • kd_mpi_sensor_dgain_get
      • kd_mpi_sensor_intg_time_set
      • kd_mpi_sensor_intg_time_get
  • Data Type
    • VICAP
      • k_vicap_sensor_type
      • k_vicap_dev
      • k_vicap_chn
      • k_vicap_csi_num
      • k_vicap_mipi_lanes
      • k_vicap_csi_data_type
      • k_vicap_data_source
      • k_vicap_vi_dvp_port
      • k_vicap_vi_flash_mode
      • k_vicap_img_window
      • k_vicap_work_mode
      • k_vicap_sensor_info
      • k_vicap_dump_format
      • k_vicap_dev_attr
      • k_vicap_chn_attr
    • Sensor
      • k_sensor_bayer_pattern
      • k_sensor_exp_frame_type
      • k_sensor_exposure_param
      • k_sensor_intg_time
      • k_sensor_gain
      • k_sensor_size
      • k_sensor_ae_info
      • k_sensor_mode
  • Error codes
  • Debugging information
• K230 VICAP SENSOR Parameter Partition Reference
  • Directory
  • preface
    • Overview
    • Reader object
    • Definition of acronyms
    • Revision history
  • Overview
    • Overview
  • Production process reference
    • Flowchart
    • Production steps
      • Convert header files
      • Converting binaries
        • Header creation
        • Configuration parameter binary file creation
        • padding file
        • Dewarp parameter configuration
        • Merge files
        • Scripting binary files
        • Punching into the parameter partition
      • Usage
      • Precautions
• K230 System Control API Reference
  • Directory
  • preface
    • Overview
    • Reader object
    • Definition of acronyms
    • Revision history
  • Overview
    • Overview
    • Function Description
      • VB Pool
      • System binding
  • API Reference
    • Multimedia memory management
      • kd_mpi_sys_mmz_alloc
      • kd_mpi_sys_mmz_alloc_cached
      • kd_mpi_sys_mmap
      • kd_mpi_sys_mmap_cached
      • kd_mpi_sys_munmap
      • kd_mpi_sys_mmz_flush_cache
      • kd_mpi_sys_mmz_free
      • kd_mpi_sys_get_virmem_info
      • kd_mpi_vb_set_config
      • kd_mpi_vb_get_config
      • kd_mpi_vb_init
      • kd_mpi_vb_exit
      • kd_mpi_vb_create_pool
      • kd_mpi_vb_destory_pool
      • kd_mpi_vb_get_block
      • kd_mpi_vb_release_block
      • kd_mpi_vb_phyaddr_to_handle
      • kd_mpi_vb_handle_to_phyaddr
      • kd_mpi_vb_handle_to_pool_id
      • kd_mpi_vb_inquire_user_cnt
      • kd_mpi_vb_get_supplement_attr
      • kd_mpi_vb_set_supplement_config
      • kd_mpi_vb_get_supplement_config
      • kd_mpi_vb_set_mod_pool_config
      • kd_mpi_vb_get_mod_pool_config
      • kd_mpi_vb_init_mod_common_pool
      • kd_mpi_vb_exit_mod_common_pool
    • System Binding
      • kd_mpi_sys_bind
      • kd_mpi_sys_unbind
      • kd_mpi_sys_get_bind_by_dest
    • Log Management
      • kd_mpi_log_set_level_conf
      • kd_mpi_log_get_level_conf
      • kd_mpi_log_set_wait_flag
      • kd_mpi_log_read
      • kd_mpi_log_close
      • kd_mpi_log_set_console
      • kd_mpi_log_get_console
  • Data Type
    • Common Data Types
      • k_mod_id
      • k_mpp_chn
    • Multimedia memory management
      • VB_MAX_POOLS
      • k_vb_uid
      • k_vb_config
      • k_vb_pool_config
      • k_vb_remap_mode
      • k_vb_supplement_config
    • Video Common Data Types
      • k_video_frame_info
      • k_video_frame
      • k_video_supplement
      • k_isp_frame_info
      • k_jpeg_dcf
      • k_isp_dcf_info
      • k_isp_dcf_update_info
      • k_isp_dcf_const_info
      • k_compress_mode
      • k_color_gamut
      • k_dynamic_range
      • k_video_format
      • k_video_filed
      • k_pixel_format
    • Multimedia Log Management
      • k_log_level_conf
  • Error codes
    • Multimedia memory management error codes
      • Video buffer pool error code
      • Multimedia memory zone error codes
    • System binding error codes
    • Log management error codes
  • Debugging information
    • Overview
    • Multimedia memory management
      • VB Pool Debugging Information
    • Multimedia memory zone debugging information
    • System Binding
      • System binding debugging information
• K230 video codec API reference
  • contents
  • Overview
    • Overview
    • Function Description
      • Video Coding
        • Encoded channels
        • Bitrate control
          • CBR
          • VBR
          • FIXQP
        • GOP structure
        • 2D operations
          • Calculation of 2D conversion coefficients
          • Configuration of 2D conversion coefficients
        • Restrictions
        • Examples of coding application
      • Video decoding
        • Examples of decoding applications
  • API Reference
    • Video Coding
      • kd_mpi_venc_create_chn
      • kd_mpi_venc_destory_chn
      • kd_mpi_venc_start_chn
      • kd_mpi_venc_stop_chn
      • kd_mpi_venc_query_status
      • kd_mpi_venc_get_stream
      • kd_mpi_venc_release_stream
      • kd_mpi_venc_send_frame
      • kd_mpi_venc_set_rotaion
      • kd_mpi_venc_get_rotaion
      • kd_mpi_venc_set_mirror
      • kd_mpi_venc_get_mirror
      • kd_mpi_venc_enable_idr
      • kd_mpi_venc_set_2d_mode
      • kd_mpi_venc_get_2d_mode
      • kd_mpi_venc_set_2d_osd_param
      • kd_mpi_venc_get_2d_osd_param
      • kd_mpi_venc_set_2d_border_param
      • kd_mpi_venc_get_2d_border_param
      • kd_mpi_venc_set_2d_custom_coef
      • kd_mpi_venc_get_2d_custom_coef
      • kd_mpi_venc_set_2d_color_gamut
      • kd_mpi_venc_get_2d_color_gamut
      • kd_mpi_venc_attach_2d
      • kd_mpi_venc_detach_2d
      • kd_mpi_venc_send_2d_frame
      • kd_mpi_venc_get_2d_frame
      • kd_mpi_venc_start_2d_chn
      • kd_mpi_venc_stop_2d_chn
      • kd_mpi_venc_request_idr
      • kd_mpi_venc_set_h265_sao
      • kd_mpi_venc_get_h265_sao
      • kd_mpi_venc_set_dblk
      • kd_mpi_venc_get_dblk
      • kd_mpi_venc_set_roi_attr
      • kd_mpi_venc_get_roi_attr
      • kd_mpi_venc_set_h264_entropy
      • kd_mpi_venc_get_h264_entropy
      • kd_mpi_venc_set_h265_entropy
      • kd_mpi_venc_get_h265_entropy
    • Video Decoding
      • kd_mpi_vdec_create_chn
      • kd_mpi_vdec_destroy_chn
      • kd_mpi_vdec_start_chn
      • kd_mpi_vdec_stop_chn
      • kd_mpi_vdec_query_status
      • kd_mpi_vdec_send_stream
      • kd_mpi_vdec_get_frame
      • kd_mpi_vdec_release_frame
      • kd_mpi_vdec_set_downscale
      • kd_mpi_vdec_set_rotation
  • Data Type
    • Video Coding
      • VENC_MAX_CHN_NUM
      • K_VENC_MAX_2D_OSD_REGION_NUM
      • K_VENC_MAX_2D_BORDER_NUM
      • K_VENC_2D_COFF_NUM
      • K_VENC_2D_MAX_CHN_NUM
      • k_venc_rc_mode
      • k_venc_pack_type
      • k_venc_2d_calc_mode
      • k_venc_2d_src_dst_fmt
      • k_venc_2d_osd_fmt
      • k_venc_2d_add_order
      • k_rotation
      • k_venc_mirror
      • k_venc_2d_color_gamut
      • k_venc_chn_attr
      • k_venc_attr
      • k_venc_rc_attr
      • k_venc_cbr
      • k_venc_vbr
      • k_venc_fixqp
      • k_venc_mjpeg_fixqp
      • k_venc_chn_status
      • k_venc_stream
      • k_venc_pack
      • k_venc_2d_osd_attr
      • k_venc_2d_border_attr
      • k_venc_h265_sao
      • k_venc_rect
      • k_venc_roi_attr
      • k_venc_h264_entropy
      • k_venc_h265_entropy
    • Video Decoding
      • K_VDEC_MAX_CHN_NUM
      • k_vdec_send_mode
      • k_vdec_chn_attr
      • k_vdec_chn_status
      • k_vdec_dec_err
      • k_vdec_stream
      • k_vdec_supplement_info
      • k_vdec_dsl_mode
      • k_vdec_dsl_size
      • k_vdec_dsl_ratio
      • k_vdec_downscale
  • MAPI
    • Video Coding
      • Overview
      • Encoded data flow diagram
      • API
        • kd_mapi_venc_init
        • kd_mapi_venc_deinit
        • kd_mapi_venc_registercallback
        • kd_mapi_venc_unregistercallback
        • kd_mapi_venc_start
        • kd_mapi_venc_stop
        • kd_mapi_venc_bind_vi
        • kd_mapi_venc_unbind_vi
        • kd_mapi_venc_request_idr
        • kd_mapi_venc_enable_idr
      • Data Types
        • kd_venc_callback_s
        • pfn_venc_dataproc
        • kd_venc_data_s
        • k_venc_data_pack_s
        • KD_VENC_MAX_FRAME_PACKCOUNT
        • KD_VENC_LIMITLESS_FRAME_COUNT
    • Video Decoding
      • API
        • kd_mapi_vdec_init
        • kd_mapi_vdec_deinit
        • kd_mapi_vdec_start
        • kd_mapi_vdec_stop
        • kd_mapi_vdec_bind_vo
        • kd_mapi_vdec_unbind_vo
        • kd_mapi_vdec_send_stream
        • kd_mapi_vdec_query_status
  • error codes
  • Debugging information
• K230 Video Output API Reference
  • Directory
  • Overview
    • Hardware Description
      • MIPI interface
      • Physical drawings
    • Software Description
      • PHY configuration process
        • Calculate the PLL of PHY
        • Configure VOC for PHY
        • Configure FreQ
      • Configuration of DSI
        • Configure the timing of the display
        • DSI send command
        • DSI’s self-test mode
      • Configuration of VO
        • VO timing configuration
        • Layer configuration for VO
        • Configuration of the write-back function of VO
      • Debugging method of VO module
        • Test method for screens
        • Test methods for DSI
        • Test methods for VO
  • API Reference
    • TXPHY
      • kd_mpi_set_mipi_phy_attr
    • CIO
      • kd_mpi_dsi_set_attr
      • kd_mpi_dsi_enable
      • kd_mpi_dsi_send_cmd
      • kd_mpi_dsi_read_pkg
      • kd_mpi_dsi_set_test_pattern
      • kd_mpi_dsi_set_lp_mode_send_cmd
    • VO
      • kd_mpi_vo_init
      • kd_mpi_vo_set_dev_param
      • kd_mpi_vo_enable_video_layer
      • kd_mpi_vo_disable_video_layer
      • kd_mpi_vo_enable
      • kd_mpi_vo_chn_insert_frame
      • kd_mpi_vo_chn_dump_frame
      • kd_mpi_vo_chn_dump_release
      • kd_mpi_vo_osd_enable
      • kd_mpi_vo_osd_disable
      • kd_mpi_vo_set_video_osd_attr
      • kd_mpi_vo_set_wbc_attr
      • kd_mpi_vo_enable_wbc
      • kd_mpi_vo_disable_wbc
      • kd_display_reset
      • kd_display_set_backlight
      • kd_mpi_vo_set_user_sync_info
      • kd_mpi_vo_draw_frame
      • kd_mpi_get_connector_info
      • kd_mpi_connector_open
      • kd_mpi_connector_power_set
      • kd_mpi_connector_init
  • Data Type
    • VO
      • k_vo_intf_sync
      • k_vo_intf_type
      • k_pixel_format
      • k_vo_osd
      • k_vo_layer
      • k_vo_rotation
      • k_vo_mirror_mode
      • k_vo_user_sync_info
      • k_vo_point
      • k_vo_size
      • k_vo_video_layer_attr
      • k_vo_wbc_attr
      • k_vo_pub_attr
      • k_vo_scaler_attr
      • k_vo_draw_frame
      • k_vo_display_resolution
      • k_vo_mipi_phy_attr
      • k_vo_video_osd_attr
      • k_video_frame_info
      • k_connector_type
      • k_dsi_lan_num
      • k_dsi_work_mode
      • k_vo_dsi_cmd_mode
      • k_connectori_phy_attr
      • k_connector_info
  • Error codes
• K230 Audio API reference
  • Directory
  • preface
    • Overview
    • Reader object
    • Definition of acronyms
    • Revision history
  • Overview
    • Overview
    • Function Description
      • Audio input
      • Audio output
      • Audio Link
      • Sound Quality Enhancement
  • API Reference
    • Audio input
      • kd_mpi_ai_set_pub_attr
      • kd_mpi_ai_get_pub_attr
      • kd_mpi_ai_enable
      • kd_mpi_ai_disable
      • kd_mpi_ai_enable_chn
      • kd_mpi_ai_disable_chn
      • kd_mpi_ai_get_frame
      • kd_mpi_ai_release_frame
      • kd_mpi_ai_set_vqe_attr
      • kd_mpi_ai_get_vqe_attr
    • Audio output
      • kd_mpi_ao_set_pub_attr
      • kd_mpi_ao_get_pub_attr
      • kd_mpi_ao_enable
      • kd_mpi_ao_disable
      • kd_mpi_ao_enable_chn
      • kd_mpi_ao_disable_chn
      • kd_mpi_ao_send_frame
    • Audio Coding
      • kd_mpi_aenc_register_encoder
      • kd_mpi_aenc_unregister_encoder
      • kd_mpi_aenc_create_chn
      • kd_mpi_aenc_destroy_chn
      • kd_mpi_aenc_send_frame
      • kd_mpi_aenc_get_stream
      • kd_mpi_aenc_release_stream
    • Audio Decoding
      • kd_mpi_adec_register_decoder
      • kd_mpi_adec_unregister_decoder
      • kd_mpi_adec_create_chn
      • kd_mpi_adec_destroy_chn
      • kd_mpi_adec_send_stream
      • kd_mpi_adec_clr_chn_buf
      • kd_mpi_adec_get_frame
      • kd_mpi_adec_release_frame
    • built-in Audio Codec
      • k_acodec_set_gain_micl
      • k_acodec_set_gain_micr
      • k_acodec_set_adcl_volume
      • k_acodec_set_adcr_volume
      • k_acodec_set_alc_gain_micl
      • k_acodec_set_alc_gain_micr
      • k_acodec_set_gain_hpoutl
      • k_acodec_set_gain_hpoutr
      • k_acodec_set_dacl_volume
      • k_acodec_set_dacr_volume
      • k_acodec_set_micl_mute
      • k_acodec_set_micr_mute
      • k_acodec_set_dacl_mute
      • k_acodec_set_dacr_mute
      • k_acodec_get_gain_micl
      • k_acodec_get_gain_micr
      • k_acodec_get_adcl_volume
      • k_acodec_get_adcr_volume
      • k_acodec_get_alc_gain_micl
      • k_acodec_get_alc_gain_micr
      • k_acodec_get_gain_hpoutl
      • k_acodec_get_gain_hpoutr
      • k_acodec_get_dacl_volume
      • k_acodec_get_dacr_volume
      • k_acodec_reset
    • Audio coding MAPI
      • kd_mapi_aenc_init
      • kd_mapi_aenc_deinit
      • kd_mapi_aenc_start
      • kd_mapi_aenc_stop
      • kd_mapi_aenc_registercallback
      • kd_mapi_aenc_unregistercallback
      • kd_mapi_aenc_bind_ai
      • kd_mapi_aenc_unbind_ai
      • kd_mapi_register_ext_audio_encoder
      • kd_mapi_unregister_ext_audio_encoder
      • kd_mapi_aenc_send_frame
    • Audio Decoding MAPI
      • kd_mapi_adec_init
      • kd_mapi_adec_deinit
      • kd_mapi_adec_start
      • kd_mapi_adec_stop
      • kd_mapi_adec_registercallback
      • kd_mapi_adec_unregistercallback
      • kd_mapi_adec_bind_ao
      • kd_mapi_adec_unbind_ao
      • kd_mapi_register_ext_audio_decoder
      • kd_mapi_unregister_ext_audio_decoder
      • kd_mapi_adec_send_stream
  • Data Type
    • Audio input and output
      • k_audio_type
      • k_audio_dev
      • k_ai_chn
      • k_ao_chn
      • K_MAX_AUDIO_FRAME_NUM
      • k_audio_bit_width
      • k_audio_snd_mode
      • k_audio_pdm_oversample
      • k_audio_pdm_attr
      • k_audio_i2s_attr
      • k_i2s_work_mode
      • k_aio_dev_attr
      • k_aio_i2s_type
      • k_audio_frame
      • k_audio_anr_cfg
      • k_audio_agc_cfg
      • k_ai_vqe_cfg
    • Audio codec
      • k_payload_type
      • k_aenc_encoder
      • k_aenc_chn_attr
      • AENC_MAX_CHN_NUMS
      • K_MAX_ENCODER_NAME_LEN
      • k_aenc_chn
      • k_audio_stream
      • k_adec_chn_attr
      • k_adec_decoder
      • K_MAX_DECODER_NAME_LEN
      • ADEC_MAX_CHN_NUMS
      • k_adec_chn
    • MAPI
      • k_handle
  • Error codes
    • Audio Input API Error Code
    • Audio Output API error codes
• K230_DRM_API_Reference
  • Directory
  • preface
    • Overview
    • Reader object
    • Definition of acronyms
    • Revision history
  • Introduction to DRM
    • DRM architecture features
    • DRM architecture composition
  • ModeTest instructions
    • Query K230 DRM details
    • The 2.2 video layer outputs smpte color bars with NV12 color space
    • The OSD layer outputs tiles color bars, and the color space is AR24(ARGB8888)
    • OSD layer outputs tiles color bars with a color space of RG16(RGB565)
  • Introduction to DRM API
    • Turn on the DRM device
    • Retrieving DRM resources
    • Enable or disable DRM-related features
    • Retrieving layer resources
    • Obtaining Connectors
    • Apply for DRM DUMB buffer
    • Submit DRM Requests
  • Precautions
• K230 Big core low-speed driver API reference
  • Directory
  • preface
    • Overview
    • Reader object
    • Definition of acronyms
    • Revision history
  • Overview
    • Overview
    • Function Description
    • Driver API usage
      • UART
        • Kernel-state programs use uart
      • I2C
        • Kernel-state programs use I2C
      • GPIO
        • Kernel-state programs use GPIO
        • User-mode programs use GPIO (read-write only)
      • Hard-lock
        • The kernel state uses hard-lock
      • ADC
        • User-mode MSH uses ADC
        • User-mode programs use ADC
        • Kernel-state programs use ADC
      • WDT
        • User-mode programs use WDT
        • Kernel-state programs use WDT
      • OTP
        • User-mode programs use OTP
        • Kernel-state programs use OTP
        • Precautions
      • TS
        • User-mode programs use TS
        • Kernel-state programs use TS
        • Precautions
      • PWM
        • Kernel-state programs use PWM
        • The FinSH command uses PWM
        • Precautions
      • RTC
        • Kernel mode uses RTC
        • Precautions
      • TIMER
        • The kernel state uses TIMER
        • Precautions
  • API Reference
    • Kernel-mode API
      • UART
        • rt_serial_init
        • rt_serial_open
        • rt_serial_close
        • rt_serial_read
        • rt_serial_write
        • rt_serial_control
      • I2C
        • rt_i2c_bus_device_find
        • rt_i2c_master_send
        • rt_i2c_master_recv
        • rt_i2c_transfer
      • GPIO
        • kd_pin_mode
        • kd_pin_write
        • kd_pin_read
        • kd_pin_attach_irq
        • kd_pin_detach_irq
        • kd_pin_irq_enable
        • gpio_device_ioctl
      • Hard-lock
        • kd_request_lock
        • kd_hardlock_lock
        • kd_hardlock_unlock
      • ADC
        • rt_device_find
        • rt_adc_enable
        • rt_adc_read
        • rt_adc_disable
      • WDT
        • rt_device_find
        • rt_device_init
        • rt_device_control
      • OTP
        • otp_device_read
        • otp_device_write
      • TS
        • ts_device_read
      • PWM
        • rt_pwm_set
        • rt_pwm_enable
        • rt_pwm_disable
      • RTC
        • set_date
        • set_time
      • TIMER
        • rt_device_set_rx_indicate
    • User-mode API
      • ADC
        • rt_device_find
        • rt_device_open
        • rt_device_control
        • rt_device_read
      • WDT
        • open
        • ioctl
      • OTP
        • rt_device_find
        • rt_device_open
        • rt_device_read
        • rt_device_write
        • rt_device_close
      • TS
  • Data Type
    • struct rt_device_gpio
    • device_hardlock
    • struct kd_alarm_setup
  • Error codes
  • Calculation formula
    • ADC calculation formula
    • WDT timeout calculation formula
• K230 little core Linux driver API reference
  • Directory
  • preface
    • Overview
    • Reader object
    • Definition of acronyms
    • Revision history
  • Overview
    • Overview
    • Function Description
      • UART module
      • I2C module
      • GPIO module
      • Hard-lock module
      • WDT module
      • OTP module
      • TS module
      • TRNG module
      • ADC Module
      • PWM module
      • FBTFT module
  • Usage reference
    • UART Usage Reference
    • I2C Usage Reference
    • GPIO Usage Reference
      • sysfs operates GPIO
      • Using gpio via ioctl
    • Hardlock usage reference
    • Watchdog usage reference
      • Using Watchdog via IOCTL
      • Using watchdog via file system
    • OTP Usage Reference
      • Sysfs file system
      • User-mode access to OTP
      • OTP space defaults
    • TS Usage Reference
      • sysfs file system
      • User-mode access TS
    • TRNG Usage Reference
      • sysfs file system
      • User access to TRNG
    • ADC Usage Reference
      • sysfs access ADC
      • User-mode access ADC
    • PWM usage reference
      • sysfs access PWM
      • User-mode access PWM
    • FBTFT Configuration Reference