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6fc935e584
portBASE_TYPE is an internal macro defined by the porting layer. This commit changes all references to BaseType_t which is the official type exposed by FreeRTOS.
SDIO workflow
This README is a supplement to the comments in the SDIO slave driver. For more details, see sdio_slave.c.
The diagram are described in mermaid format. You can view the diagrams on Github or with any mermaid renders.
Sending direction
sequenceDiagram
actor task
participant ISR
participant HW
Note right of HW: always: rx_done.raw = 1, rx_eof.ena= 1
task-->>ISR: Prepare transfers
task->>HW: rx_done.ena=1
activate HW
%% First ISR triggering transfer
HW->>ISR: trigger
activate ISR
ISR->>HW: rx_done.ena=0
deactivate HW
loop every finished descriptor
note over task, HW: skipped, see below
end
opt HW idle && new transfer prepared
ISR->>HW: Load transfer
end
deactivate ISR
activate HW
HW->>HW: Host doing RX transfer
deactivate HW
HW->>HW: rx_eof.raw=1
activate HW
%% Second ISR recycling transfer
HW->>ISR: trigger
activate ISR
ISR-->>HW: rx_done.ena=0
loop every finished descriptor
ISR->>HW: rx_eof.raw=0
deactivate HW
ISR-->>task: inform
end
opt HW idle && new transfer prepared
note over ISR, HW: Load next transfer if there is...
end
deactivate ISR