HAL GFXMMU Use Cases

Required Configuration

@startuml ==Initialization== participant "User application" as App participant "HAL GFXMMU Driver" as GFXMMU App -> GFXMMU : HAL_Init() note right : initialize the GFXMMU handle and associate an instance activate GFXMMU GFXMMU --> App : hal_status:HAL_OK deactivate GFXMMU note left : return ==Configuration== App -> GFXMMU : HAL_GFXMMU_SetConfig() activate GFXMMU note right : Global configuration : select the block size GFXMMU --> App : hal_status:HAL_OK or HAL_INVALID_PARAM deactivate GFXMMU note left : return @enduml

Called functions:

User Application with Enabling the Packing Mode

@startuml ==Initialization== participant "User application" as App participant "HAL GFXMMU Driver" as GFXMMU App -> GFXMMU : HAL_Init() activate GFXMMU GFXMMU--> App : hal_status:HAL_OK deactivate GFXMMU note left : return App -> GFXMMU : SystemClock_Config() activate GFXMMU GFXMMU --> App : hal_status:HAL_OK deactivate GFXMMU note left : return App -> GFXMMU : HAL_GFXMMU_Init() activate GFXMMU note right : Initialize the GFXMMU handle and associate an instance GFXMMU --> App : hal_status:HAL_OK or HAL_INVALID_PARAM deactivate GFXMMU note left : return == Global Configuration == App -> GFXMMU : HAL_GFXMMU_SetConfig() activate GFXMMU note right : Global configuration GFXMMU --> App : hal_status:HAL_OK or HAL_INVALID_PARAM deactivate GFXMMU note left : return == Set Packing mode == App -> GFXMMU : HAL_GFXMMU_SetConfigBuffPacking() note right : Set the packing mode configuration GFXMMU --> App : hal_status:HAL_OK or HAL_INVALID_PARAM note left : return App -> GFXMMU : HAL_GFXMMU_EnableBuffPacking() note right : Enable the buffer packing GFXMMU --> App : hal_status:HAL_OK note left : return == Buffer Configuration == App -> GFXMMU : HAL_GFXMMU_SetBuffPhysicalAddr() activate GFXMMU note right : Set the physical address to the dedicated buffer GFXMMU --> App : hal_status:HAL_OK or HAL_INVALID_PARAM deactivate GFXMMU note left : return @enduml

Called functions:

User Application with Configured LUT Lines and Enabling Packing Mode

@startuml ==Initialization== participant "User application" as App participant "HAL GFXMMU Driver" as GFXMMU App -> GFXMMU : HAL_Init() activate GFXMMU GFXMMU--> App : hal_status:HAL_OK deactivate GFXMMU note left : return App -> GFXMMU : SystemClock_Config() activate GFXMMU GFXMMU --> App : hal_status:HAL_OK deactivate GFXMMU note left : return App -> GFXMMU : HAL_GFXMMU_Init() activate GFXMMU note right : Initialize the GFXMMU handle and associate an instance GFXMMU --> App : hal_status:HAL_OK or HAL_INVALID_PARAM deactivate GFXMMU note left : return == Global Configuration == App -> GFXMMU : HAL_GFXMMU_SetConfig() activate GFXMMU note right : Global configuration GFXMMU --> App : hal_status:HAL_OK or HAL_INVALID_PARAM deactivate GFXMMU note left : return == Configuration LUT lines == App -> GFXMMU : HAL_GFXMMU_SetLUT() activate GFXMMU note right : LUT Lines configuration GFXMMU --> App : hal_status:HAL_OK or HAL_INVALID_PARAM deactivate GFXMMU note left : return == Buffer Configuration == App -> GFXMMU : HAL_GFXMMU_SetBuffPhysicalAddr() activate GFXMMU note right : Set the physical address to the dedicated buffer GFXMMU --> App : hal_status:HAL_OK or HAL_INVALID_PARAM deactivate GFXMMU note left : return group optional Set packing mode ==Enable Packing mode== group optional Disable address translation App -> GFXMMU : HAL_GFXMMU_DisableLUT() note right : Activate all lines and blocks GFXMMU --> App : hal_status:HAL_OK note left : return end App -> GFXMMU : HAL_GFXMMU_SetConfigBuffPacking() note right : Set the packing mode configuration GFXMMU --> App : hal_status:HAL_OK or HAL_INVALID_PARAM note left : return App -> GFXMMU : HAL_GFXMMU_EnableBuffPacking() note right : Enable the buffer packing GFXMMU --> App : hal_status:HAL_OK note left : return end @enduml

Called functions: