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https://github.com/brain-hackers/u-boot-brain
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07805f203b
The UEFI variables PlatformLang and PlatformLangCodes specify the current firmware language and the list of all available languages. Currently their values are hard coded. With the patch a new configuration variable EFI_PLATFORM_LANG_CODES is provided. When initializing the UEFI subsystem this configuration variable is used to initialize PlatformLangCodes. The value of variable PlatformLang is read. If it is not set, the first language specified in EFI_PLATFORM_LANG_CODES is used to initialize PlatformLang. Suggested-by: Takahiro Akashi <takahiro.akashi@linaro.org> Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
149 lines
3.3 KiB
C
149 lines
3.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* EFI setup code
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*
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* Copyright (c) 2016-2018 Alexander Graf et al.
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*/
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#include <common.h>
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#include <efi_loader.h>
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#define OBJ_LIST_NOT_INITIALIZED 1
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static efi_status_t efi_obj_list_initialized = OBJ_LIST_NOT_INITIALIZED;
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/**
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* efi_init_platform_lang() - define supported languages
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*
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* Set the PlatformLangCodes and PlatformLang variables.
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*
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* Return: status code
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*/
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static efi_status_t efi_init_platform_lang(void)
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{
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efi_status_t ret;
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efi_uintn_t data_size = 0;
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char *lang = CONFIG_EFI_PLATFORM_LANG_CODES;
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char *pos;
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/*
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* Variable PlatformLangCodes defines the language codes that the
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* machine can support.
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*/
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ret = EFI_CALL(efi_set_variable(L"PlatformLangCodes",
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&efi_global_variable_guid,
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EFI_VARIABLE_BOOTSERVICE_ACCESS |
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EFI_VARIABLE_RUNTIME_ACCESS,
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sizeof(CONFIG_EFI_PLATFORM_LANG_CODES),
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CONFIG_EFI_PLATFORM_LANG_CODES));
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if (ret != EFI_SUCCESS)
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goto out;
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/*
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* Variable PlatformLang defines the language that the machine has been
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* configured for.
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*/
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ret = EFI_CALL(efi_get_variable(L"PlatformLang",
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&efi_global_variable_guid,
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NULL, &data_size, &pos));
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if (ret == EFI_BUFFER_TOO_SMALL) {
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/* The variable is already set. Do not change it. */
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ret = EFI_SUCCESS;
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goto out;
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}
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/*
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* The list of supported languages is semicolon separated. Use the first
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* language to initialize PlatformLang.
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*/
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pos = strchr(lang, ';');
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if (pos)
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*pos = 0;
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ret = EFI_CALL(efi_set_variable(L"PlatformLang",
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&efi_global_variable_guid,
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EFI_VARIABLE_NON_VOLATILE |
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EFI_VARIABLE_BOOTSERVICE_ACCESS |
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EFI_VARIABLE_RUNTIME_ACCESS,
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1 + strlen(lang), lang));
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out:
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if (ret != EFI_SUCCESS)
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printf("EFI: cannot initialize platform language settings\n");
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return ret;
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}
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/**
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* efi_init_obj_list() - Initialize and populate EFI object list
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*
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* Return: status code
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*/
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efi_status_t efi_init_obj_list(void)
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{
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efi_status_t ret = EFI_SUCCESS;
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/* Initialize once only */
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if (efi_obj_list_initialized != OBJ_LIST_NOT_INITIALIZED)
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return efi_obj_list_initialized;
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/* Define supported languages */
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ret = efi_init_platform_lang();
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if (ret != EFI_SUCCESS)
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goto out;
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/* Initialize system table */
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ret = efi_initialize_system_table();
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if (ret != EFI_SUCCESS)
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goto out;
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/* Initialize root node */
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ret = efi_root_node_register();
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if (ret != EFI_SUCCESS)
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goto out;
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/* Initialize EFI driver uclass */
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ret = efi_driver_init();
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if (ret != EFI_SUCCESS)
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goto out;
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ret = efi_console_register();
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if (ret != EFI_SUCCESS)
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goto out;
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#ifdef CONFIG_PARTITIONS
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ret = efi_disk_register();
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if (ret != EFI_SUCCESS)
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goto out;
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#endif
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#if defined(CONFIG_LCD) || defined(CONFIG_DM_VIDEO)
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ret = efi_gop_register();
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if (ret != EFI_SUCCESS)
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goto out;
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#endif
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#ifdef CONFIG_NET
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ret = efi_net_register();
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if (ret != EFI_SUCCESS)
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goto out;
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#endif
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#ifdef CONFIG_GENERATE_ACPI_TABLE
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ret = efi_acpi_register();
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if (ret != EFI_SUCCESS)
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goto out;
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#endif
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#ifdef CONFIG_GENERATE_SMBIOS_TABLE
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ret = efi_smbios_register();
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if (ret != EFI_SUCCESS)
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goto out;
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#endif
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ret = efi_watchdog_register();
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if (ret != EFI_SUCCESS)
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goto out;
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/* Initialize EFI runtime services */
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ret = efi_reset_system_init();
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if (ret != EFI_SUCCESS)
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goto out;
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out:
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efi_obj_list_initialized = ret;
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return ret;
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}
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