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dmaps
Vitis Drivers API Documentation
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dmaps
Vitis Drivers API Documentation
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A DMA command consisits of a channel control struct, a block descriptor, a user defined program, a pointer pointing to generated DMA program, and execution result. More...
Data Fields | |
| XDmaPs_ChanCtrl | ChanCtrl |
| Channel Control Struct. More... | |
| XDmaPs_BD | BD |
| Together with SgLength field, it's a scatter-gather list. More... | |
| void * | UserDmaProg |
| If user wants the driver to execute their own DMA program, this field points to the DMA program. More... | |
| int | UserDmaProgLength |
| The length of user defined DMA program. More... | |
| void * | GeneratedDmaProg |
| The DMA program genreated by the driver. More... | |
| int | GeneratedDmaProgLength |
| The length of the DMA program generated by the driver. More... | |
| int | DmaStatus |
| 0 on success, otherwise error code More... | |
| u32 | ChanFaultType |
| Channel fault type in case of fault. More... | |
| u32 | ChanFaultPCAddr |
| Channel fault PC address. More... | |
A DMA command consisits of a channel control struct, a block descriptor, a user defined program, a pointer pointing to generated DMA program, and execution result.
| XDmaPs_BD XDmaPs_Cmd::BD |
Together with SgLength field, it's a scatter-gather list.
Referenced by DmaDoneHandler(), XDmaPs_Example_W_Intr(), XDmaPs_GenDmaProg(), and XDmaPs_Start().
| XDmaPs_ChanCtrl XDmaPs_Cmd::ChanCtrl |
Channel Control Struct.
Referenced by XDmaPs_Example_W_Intr(), XDmaPs_GenDmaProg(), and XDmaPs_Start().
| u32 XDmaPs_Cmd::ChanFaultPCAddr |
Channel fault PC address.
Referenced by XDmaPs_FaultISR().
| u32 XDmaPs_Cmd::ChanFaultType |
Channel fault type in case of fault.
Referenced by XDmaPs_FaultISR().
| int XDmaPs_Cmd::DmaStatus |
0 on success, otherwise error code
Referenced by XDmaPs_FaultISR(), and XDmaPs_Start().
| void* XDmaPs_Cmd::GeneratedDmaProg |
The DMA program genreated by the driver.
This field will be set if a user invokes the DMA program generation function. Or the DMA command is finished and a user informs the driver not to release the program buffer. This field has two purposes, one is to ask the driver to generate a DMA program while the DMAC is performaning DMA transactions. The other purpose is to debug the driver.
Referenced by XDmaPs_FaultISR(), XDmaPs_FreeDmaProg(), XDmaPs_GenDmaProg(), XDmaPs_Print_DmaProg(), and XDmaPs_Start().
| int XDmaPs_Cmd::GeneratedDmaProgLength |
The length of the DMA program generated by the driver.
Referenced by XDmaPs_FreeDmaProg(), XDmaPs_GenDmaProg(), and XDmaPs_Print_DmaProg().
| void* XDmaPs_Cmd::UserDmaProg |
If user wants the driver to execute their own DMA program, this field points to the DMA program.
Referenced by XDmaPs_Print_DmaProg(), and XDmaPs_Start().
| int XDmaPs_Cmd::UserDmaProgLength |
The length of user defined DMA program.
Referenced by XDmaPs_Print_DmaProg().