mirror of
https://github.com/ARM-software/arm-trusted-firmware.git
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dbeace1027
Add uml sequence and class diagram to illustrate the behavior of the storage abstraction layer. Change-Id: I338262729f8034cc3d3eea1d0ce19cca973a91bb Signed-off-by: Louis Mayencourt <louis.mayencourt@arm.com>
109 lines
1.6 KiB
Text
109 lines
1.6 KiB
Text
@startuml
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package arm_io_storage {
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class plat_io_policy {
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dev_handle : uintptr_t*
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image_spec : uintptr_t
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{abstract} check() : fctptr
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}
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class FIP_IMAGE_ID {
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memmap_dev_handle
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fip_block_spec
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open_memmap()
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}
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class BL2_IMAGE_ID{
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fip_dev_handle
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bl2_uuid_spec
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open_fip()
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}
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class xxx_IMAGE_ID{
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fip_dev_handle
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xxx_uuid_spec
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open_fip()
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}
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class arm_io_storage {
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fip_dev_con : io_dev_connector_t*
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fip_dev_handle : uintptr_t
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memmap_dev_con : io_dev_connector_t*
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memmap_dev_handle : uintptr_t
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fip_block_spec : io_block_spec_t
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policies : plat_io_policy[1..*]
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-open_fip()
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-open_memmap()
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+arm_io_setup()
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+plat_get_image_source()
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}
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FIP_IMAGE_ID -up-|> plat_io_policy
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BL2_IMAGE_ID -up-|> plat_io_policy
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xxx_IMAGE_ID -up-|> plat_io_policy
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arm_io_storage *-"1..*" plat_io_policy
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}
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package IO {
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class io_storage {
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io_dev_open()
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io_dev_init()
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io_dev_close()
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.. synchronous operations ..
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io_open()
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io_seek()
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io_size()
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io_read()
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io_write()
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io_close()
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io_register_device()
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}
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class io_fip {
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register_io_dev_fip()
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.. io_dev_funcs_t interface ..
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fip_dev_funcs : io_dev_funcs_t
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}
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class io_memmap {
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register_io_dev_memmap()
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.. io_dev_funcs_t interface ..
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memmap_dev_funcs : io_dev_funcs_t
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}
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interface io_driver {
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io_entity_t
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io_dev_info_t
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.. io_dev_connector_t interface ..
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dev_open()
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.. io_dev_funcs_t interface ..
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type()
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open()
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seek()
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size()
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read()
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write()
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close()
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dev_init()
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dev_close()
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io_register_device()
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}
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}
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arm_io_storage .. io_driver
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arm_io_storage .. io_fip
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arm_io_storage .. io_memmap
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arm_io_storage .. io_storage
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@enduml
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