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sys/boot/efi/libefi/efi_driver_utils.c
- This file was added.
/*- | |||||
* Copyright (c) 2017 Eric McCorkle | |||||
* All rights reserved. | |||||
* | |||||
* Redistribution and use in source and binary forms, with or without | |||||
* modification, are permitted provided that the following conditions | |||||
* are met: | |||||
* 1. Redistributions of source code must retain the above copyright | |||||
* notice, this list of conditions and the following disclaimer. | |||||
* 2. Redistributions in binary form must reproduce the above copyright | |||||
* notice, this list of conditions and the following disclaimer in the | |||||
* documentation and/or other materials provided with the distribution. | |||||
* | |||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND | |||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |||||
* SUCH DAMAGE. | |||||
* | |||||
* $FreeBSD$ | |||||
*/ | |||||
#include <stdbool.h> | |||||
#include <efi.h> | |||||
#include <efilib.h> | |||||
#include "efi_driver_utils.h" | |||||
static EFI_GUID DriverBindingProtocolGUID = DRIVER_BINDING_PROTOCOL; | |||||
EFI_STATUS | |||||
connect_controllers(EFI_GUID *filter) | |||||
{ | |||||
EFI_STATUS status; | |||||
EFI_HANDLE *handles; | |||||
UINTN nhandles, i, hsize; | |||||
nhandles = 0; | |||||
hsize = 0; | |||||
status = BS->LocateHandle(ByProtocol, filter, NULL, | |||||
&hsize, NULL); | |||||
if(status != EFI_BUFFER_TOO_SMALL) { | |||||
return (status); | |||||
} | |||||
handles = malloc(hsize); | |||||
nhandles = hsize / sizeof(EFI_HANDLE); | |||||
status = BS->LocateHandle(ByProtocol, filter, NULL, | |||||
&hsize, handles); | |||||
if(EFI_ERROR(status)) { | |||||
return (status); | |||||
} | |||||
for(i = 0; i < nhandles; i++) { | |||||
BS->ConnectController(handles[i], NULL, NULL, true); | |||||
} | |||||
free(handles); | |||||
return (status); | |||||
} | |||||
EFI_STATUS | |||||
install_driver(EFI_DRIVER_BINDING *driver) | |||||
{ | |||||
EFI_STATUS status; | |||||
driver->ImageHandle = IH; | |||||
driver->DriverBindingHandle = NULL; | |||||
status = BS->InstallMultipleProtocolInterfaces( | |||||
&(driver->DriverBindingHandle), | |||||
&DriverBindingProtocolGUID, driver, | |||||
NULL); | |||||
if (EFI_ERROR(status)) { | |||||
printf("Failed to install driver (%ld)!\n", | |||||
EFI_ERROR_CODE(status)); | |||||
} | |||||
return (status); | |||||
} |