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