1// SPDX-License-Identifier: GPL-2.0+ 2/* 3 * efi_selftest_util 4 * 5 * Copyright (c) 2017 Heinrich Schuchardt <xypron.glpk@gmx.de> 6 * 7 * Utility functions 8 */ 9 10#include <efi_selftest.h> 11 12struct efi_st_translate { 13 u16 code; 14 u16 *text; 15}; 16 17static struct efi_st_translate efi_st_control_characters[] = { 18 {0, u"Null"}, 19 {8, u"BS"}, 20 {9, u"TAB"}, 21 {10, u"LF"}, 22 {13, u"CR"}, 23 {0, NULL}, 24}; 25 26static u16 efi_st_ch[] = u"' '"; 27static u16 efi_st_unknown[] = u"unknown"; 28 29static struct efi_st_translate efi_st_scan_codes[] = { 30 {0x00, u"Null"}, 31 {0x01, u"Up"}, 32 {0x02, u"Down"}, 33 {0x03, u"Right"}, 34 {0x04, u"Left"}, 35 {0x05, u"Home"}, 36 {0x06, u"End"}, 37 {0x07, u"Insert"}, 38 {0x08, u"Delete"}, 39 {0x09, u"Page Up"}, 40 {0x0a, u"Page Down"}, 41 {0x0b, u"FN 1"}, 42 {0x0c, u"FN 2"}, 43 {0x0d, u"FN 3"}, 44 {0x0e, u"FN 4"}, 45 {0x0f, u"FN 5"}, 46 {0x10, u"FN 6"}, 47 {0x11, u"FN 7"}, 48 {0x12, u"FN 8"}, 49 {0x13, u"FN 9"}, 50 {0x14, u"FN 10"}, 51 {0x15, u"FN 11"}, 52 {0x16, u"FN 12"}, 53 {0x17, u"Escape"}, 54 {0x68, u"FN 13"}, 55 {0x69, u"FN 14"}, 56 {0x6a, u"FN 15"}, 57 {0x6b, u"FN 16"}, 58 {0x6c, u"FN 17"}, 59 {0x6d, u"FN 18"}, 60 {0x6e, u"FN 19"}, 61 {0x6f, u"FN 20"}, 62 {0x70, u"FN 21"}, 63 {0x71, u"FN 22"}, 64 {0x72, u"FN 23"}, 65 {0x73, u"FN 24"}, 66 {0x7f, u"Mute"}, 67 {0x80, u"Volume Up"}, 68 {0x81, u"Volume Down"}, 69 {0x100, u"Brightness Up"}, 70 {0x101, u"Brightness Down"}, 71 {0x102, u"Suspend"}, 72 {0x103, u"Hibernate"}, 73 {0x104, u"Toggle Display"}, 74 {0x105, u"Recovery"}, 75 {0x106, u"Reject"}, 76 {0x0, NULL}, 77}; 78 79u16 *efi_st_translate_char(u16 code) 80{ 81 struct efi_st_translate *tr; 82 83 if (code >= ' ') { 84 efi_st_ch[1] = code; 85 return efi_st_ch; 86 } 87 for (tr = efi_st_control_characters; tr->text; ++tr) { 88 if (tr->code == code) 89 return tr->text; 90 } 91 return efi_st_unknown; 92} 93 94u16 *efi_st_translate_code(u16 code) 95{ 96 struct efi_st_translate *tr; 97 98 for (tr = efi_st_scan_codes; tr->text; ++tr) { 99 if (tr->code == code) 100 return tr->text; 101 } 102 return efi_st_unknown; 103} 104 105int efi_st_strcmp_16_8(const u16 *buf1, const unsigned char *buf2) 106{ 107 for (; *buf1 || *buf2; ++buf1, ++buf2) { 108 if (*buf1 != *buf2) 109 return *buf1 - *buf2; 110 } 111 return 0; 112} 113 114void *efi_st_get_config_table(const efi_guid_t *guid) 115{ 116 size_t i; 117 118 for (i = 0; i < st_systable->nr_tables; i++) { 119 if (!guidcmp(guid, &st_systable->tables[i].guid)) 120 return st_systable->tables[i].table; 121 } 122 return NULL; 123} 124