| 1 | /*␊ |
| 2 | * Keymapper.c␊ |
| 3 | * Chameleon␊ |
| 4 | *␊ |
| 5 | * Created by JrCs on 28/08/11.␊ |
| 6 | * Copyright 2011. All rights reserved.␊ |
| 7 | *␊ |
| 8 | */␊ |
| 9 | ␊ |
| 10 | #include "libsaio.h"␊ |
| 11 | #include "term.h"␊ |
| 12 | #include "modules.h"␊ |
| 13 | #include "Keylayout.h"␊ |
| 14 | #include "bootstruct.h"␊ |
| 15 | ␊ |
| 16 | #define kKeyboardLayout "KeyboardLayout"␊ |
| 17 | ␊ |
| 18 | struct keyboard_layout *current_layout = NULL;␊ |
| 19 | ␊ |
| 20 | int getchar_replacement() {␊ |
| 21 | ␉int code = bgetc();␊ |
| 22 | ␉int status = readKeyboardShiftFlags();␊ |
| 23 | ␉uint8_t scancode = code >> 8;␊ |
| 24 | ␊ |
| 25 | ␉// Special scancode sent when alt + some keys are pressed␊ |
| 26 | ␉if (scancode >= 0x78 && scancode <= 0x83)␊ |
| 27 | ␉␉scancode -= 0x76;␊ |
| 28 | ␊ |
| 29 | ␉if (scancode < KEYBOARD_MAP_SIZE && !(status & (STATUS_LCTRL| STATUS_RCTRL))) {␊ |
| 30 | ␉␉int key;␊ |
| 31 | ␉␉if ((status & (STATUS_LALT|STATUS_RALT)) &&␊ |
| 32 | ␉␉␉(status & (STATUS_LSHIFT|STATUS_RSHIFT|STATUS_CAPS))) {␊ |
| 33 | ␉␉␉key=current_layout->keyboard_map_shift_alt[scancode];␊ |
| 34 | ␉␉}␊ |
| 35 | ␉␉else if (status & (STATUS_LSHIFT|STATUS_RSHIFT|STATUS_CAPS))␊ |
| 36 | ␉␉␉key=current_layout->keyboard_map_shift[scancode];␊ |
| 37 | ␉␉else if (status & (STATUS_LALT|STATUS_RALT))␊ |
| 38 | ␉␉␉key=current_layout->keyboard_map_alt[scancode];␊ |
| 39 | ␉␉else␊ |
| 40 | ␉␉␉key=current_layout->keyboard_map[scancode];␊ |
| 41 | ␊ |
| 42 | ␉␉if (key != 0) // do the mapping␊ |
| 43 | ␉␉␉code = key;␊ |
| 44 | ␉}␊ |
| 45 | ␊ |
| 46 | ␉if (ASCII_KEY(code) != 0) // if ascii not null return it␊ |
| 47 | ␉␉code = ASCII_KEY(code);␊ |
| 48 | ␊ |
| 49 | ␉//printf("Code: %04x\n",code);␊ |
| 50 | ␉return (code);␊ |
| 51 | }␊ |
| 52 | ␊ |
| 53 | static uint32_t load_keyboard_layout_file(const char *filename) {␊ |
| 54 | ␉int fd;␊ |
| 55 | ␉char magic[KEYBOARD_LAYOUTS_MAGIC_SIZE];␊ |
| 56 | ␉uint32_t version;␊ |
| 57 | ␉␊ |
| 58 | ␉if ((fd = open_bvdev("bt(0,0)", filename, 0)) < 0) {␊ |
| 59 | ␉␉goto fail; // fail␊ |
| 60 | ␉}␊ |
| 61 | ␉␊ |
| 62 | ␉if (read(fd, magic, sizeof(magic)) != sizeof(magic)) {␊ |
| 63 | ␉␉printf("Can't find magic in keyboard layout file: %s\n", filename);␊ |
| 64 | ␉␉goto fail;␊ |
| 65 | ␉}␊ |
| 66 | ␊ |
| 67 | ␉if (memcmp (magic, KEYBOARD_LAYOUTS_MAGIC, KEYBOARD_LAYOUTS_MAGIC_SIZE) != 0) {␊ |
| 68 | ␉␉printf("Invalid magic code in keyboard layout file: %s\n", filename);␊ |
| 69 | ␉␉goto fail;␊ |
| 70 | }␊ |
| 71 | ␊ |
| 72 | ␉if (read(fd, (char*) &version, sizeof(version)) != sizeof(version)) {␊ |
| 73 | ␉␉printf("Can't get version of keyboard layout file: %s\n", filename);␊ |
| 74 | ␉␉goto fail;␊ |
| 75 | ␉}␊ |
| 76 | ␉␊ |
| 77 | ␉if (version != KEYBOARD_LAYOUTS_VERSION) {␊ |
| 78 | ␉␉verbose("Bad version for keyboard layout file %s expected v%d found v%d\n",␊ |
| 79 | ␉␉␉ filename, KEYBOARD_LAYOUTS_VERSION, version);␊ |
| 80 | ␉␉goto fail;␊ |
| 81 | ␉}␊ |
| 82 | ␉␊ |
| 83 | ␉if (current_layout)␊ |
| 84 | ␉␉free(current_layout);␊ |
| 85 | ␉␉␊ |
| 86 | ␉current_layout = malloc(sizeof(*current_layout));␊ |
| 87 | ␉if (!current_layout)␊ |
| 88 | ␉␉goto fail;␊ |
| 89 | ␊ |
| 90 | ␉b_lseek(fd, KEYBOARD_LAYOUTS_MAP_OFFSET, 0);␊ |
| 91 | ␉␊ |
| 92 | ␉if (read(fd, (char*) current_layout, sizeof(*current_layout)) != sizeof(*current_layout)) {␊ |
| 93 | ␉␉printf("Wrong keyboard layout file %s size\n", filename);␊ |
| 94 | ␉␉goto fail;␊ |
| 95 | ␉}␊ |
| 96 | ␉␊ |
| 97 | ␉close(fd);␊ |
| 98 | ␉␊ |
| 99 | ␉return 1;␊ |
| 100 | ␉␉␊ |
| 101 | fail:␊ |
| 102 | ␊ |
| 103 | ␉if (current_layout) {␊ |
| 104 | ␉␉free(current_layout);␊ |
| 105 | ␉␉current_layout = NULL;␊ |
| 106 | ␉}␊ |
| 107 | ␉return 0;␊ |
| 108 | }␊ |
| 109 | ␊ |
| 110 | void Keylayout_start()␊ |
| 111 | {␊ |
| 112 | ␉char layoutPath[512];␊ |
| 113 | ␉const char␉*val;␊ |
| 114 | ␉int␉␉␉len;␊ |
| 115 | ␊ |
| 116 | ␉if (getValueForKey("KeyLayout", &val, &len, &bootInfo->chameleonConfig)) {␊ |
| 117 | ␉␉sprintf(layoutPath, "/Extra/Keymaps/%s", val);␊ |
| 118 | ␉␉// Add the extension if needed␊ |
| 119 | ␉␉if (len <= 4 || strcmp(val+len-4,".lyt") != 0)␊ |
| 120 | ␉␉␉strncat(layoutPath, ".lyt", sizeof(layoutPath) - strlen(layoutPath) - 1);␊ |
| 121 | ␊ |
| 122 | ␉␉if (!load_keyboard_layout_file(layoutPath)) {␊ |
| 123 | ␉␉␉printf("Can't load %s keyboard layout file. Keylayout will not be used !\n",␊ |
| 124 | ␉␉␉␉ layoutPath);␊ |
| 125 | ␉␉␉sleep(2);␊ |
| 126 | ␉␉} else if (!replace_function("_getchar", &getchar_replacement)) {␊ |
| 127 | ␉␉␉printf("Can't replace function getchar: Keylayout module can't be used !\n");␊ |
| 128 | ␉␉␉sleep(2);␊ |
| 129 | ␉␉}␊ |
| 130 | ␉}␊ |
| 131 | }␊ |
| 132 | |
