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2022-10-06efi_driver: add init function to EFI block driverHeinrich Schuchardt
For handling added and removed block devices we need to register events which has to be done when the driver is installed. This patch only creates an empty init function that will be filled with code later on. The function needs to be called before any EFI block devices are used. Move the efi_driver_init() call to early init. Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-10-06efi_driver: provide driver binding protocol to bind functionHeinrich Schuchardt
DisconnectController() is based on the open protocol information created when the driver opens a protocol with BY_CHILD_CONTROLLER or BY_DRIVER. To create an open protocol information it is required to supply the handle of the driver as agent handle. This information is available as field DriverBindingHandle in the driver binding protocol. Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-10-06doc: documentation of EFI driver binding protocolHeinrich Schuchardt
* Convert code comments in include/efi_driver.h to Sphinx style. * Add include/efi_driver.h to the HTML documentation. Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
2022-10-06efi_driver: fix error handlingHeinrich Schuchardt
If creating the block device fails, * delete all created objects and references * close the protocol interface on the controller Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2020-08-03efi: Tidy up header includesSimon Glass
Two files relies on efi_driver.h to include common.h and dm.h which is incorrect. The former should always be included in a non-host C file and the latter should be included if driver model is used. Signed-off-by: Simon Glass <sjg@chromium.org>
2018-05-10SPDX: Convert a few files that were missed beforeTom Rini
As part of the main conversion a few files were missed. These files had additional whitespace after the '*' and before the SPDX tag and my previous regex was too strict. This time I did a grep for all SPDX tags and then filtered out anything that matched the correct styles. Fixes: 83d290c56fab ("SPDX: Convert all of our single license tags to Linux Kernel style") Reported-by: Heinrich Schuchardt <xypron.debian@gmx.de> Signed-off-by: Tom Rini <trini@konsulko.com>
2018-02-13efi_driver: comment struct efi_driver_opsHeinrich Schuchardt
Provide description for struct efi_driver_ops. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2018-01-22efi_driver: EFI block driverHeinrich Schuchardt
This patch provides * a uclass for EFI drivers * a EFI driver for block devices For each EFI driver the uclass * creates a handle * adds the driver binding protocol The uclass provides the bind, start, and stop entry points for the driver binding protocol. In bind() and stop() it checks if the controller implements the protocol supported by the EFI driver. In the start() function it calls the bind() function of the EFI driver. In the stop() function it destroys the child controllers. The EFI block driver binds to controllers implementing the block io protocol. When the bind function of the EFI block driver is called it creates a new U-Boot block device. It installs child handles for all partitions and installs the simple file protocol on these. The read and write functions of the EFI block driver delegate calls to the controller that it is bound to. A usage example is as following: U-Boot loads the iPXE snp.efi executable. iPXE connects an iSCSI drive and exposes a handle with the block IO protocol. It calls ConnectController. Now the EFI block driver installs the partitions with the simple file protocol. iPXE uses the simple file protocol to load Grub or the Linux Kernel. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> [agraf: add comment on calloc len] Signed-off-by: Alexander Graf <agraf@suse.de>