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 | #ifndef DEBUG_KLAYOUT␊ |
17 | #define DEBUG_KLAYOUT 0␊ |
18 | #endif␊ |
19 | ␊ |
20 | #if DEBUG_KLAYOUT␊ |
21 | #define DBG(x...)␉printf(x)␊ |
22 | #else␊ |
23 | #define DBG(x...)␊ |
24 | #endif␊ |
25 | ␊ |
26 | #define kKeyboardLayout "KeyboardLayout"␊ |
27 | ␊ |
28 | struct keyboard_layout *current_layout = NULL;␊ |
29 | int getchar_replacement();␊ |
30 | ␊ |
31 | int getchar_replacement() {␊ |
32 | ␉int code = bgetc();␊ |
33 | ␉int status = readKeyboardShiftFlags();␊ |
34 | ␉uint8_t scancode = code >> 8;␊ |
35 | ␊ |
36 | ␉// Special scancode sent when alt + some keys are pressed␊ |
37 | ␉if (scancode >= 0x78 && scancode <= 0x83)␊ |
38 | ␉␉scancode -= 0x76;␊ |
39 | ␊ |
40 | ␉if (scancode < KEYBOARD_MAP_SIZE && !(status & (STATUS_LCTRL| STATUS_RCTRL))) {␊ |
41 | ␉␉int key;␊ |
42 | ␉␉if ((status & (STATUS_LALT|STATUS_RALT)) &&␊ |
43 | ␉␉␉(status & (STATUS_LSHIFT|STATUS_RSHIFT|STATUS_CAPS))) {␊ |
44 | ␉␉␉key=current_layout->keyboard_map_shift_alt[scancode];␊ |
45 | ␉␉}␊ |
46 | ␉␉else if (status & (STATUS_LSHIFT|STATUS_RSHIFT|STATUS_CAPS))␊ |
47 | ␉␉␉key=current_layout->keyboard_map_shift[scancode];␊ |
48 | ␉␉else if (status & (STATUS_LALT|STATUS_RALT))␊ |
49 | ␉␉␉key=current_layout->keyboard_map_alt[scancode];␊ |
50 | ␉␉else␊ |
51 | ␉␉␉key=current_layout->keyboard_map[scancode];␊ |
52 | ␊ |
53 | ␉␉if (key != 0) // do the mapping␊ |
54 | ␉␉␉code = key;␊ |
55 | ␉}␊ |
56 | ␊ |
57 | ␉if (ASCII_KEY(code) != 0) // if ascii not null return it␊ |
58 | ␉␉code = ASCII_KEY(code);␊ |
59 | ␊ |
60 | ␉//printf("Code: %04x\n",code);␊ |
61 | ␉return (code);␊ |
62 | }␊ |
63 | ␊ |
64 | static uint32_t load_keyboard_layout_file(const char *filename)␊ |
65 | {␊ |
66 | ␉int fd;␊ |
67 | ␉char magic[KEYBOARD_LAYOUTS_MAGIC_SIZE];␊ |
68 | ␉uint32_t version;␊ |
69 | ␉␊ |
70 | ␉if ((fd = open_bvdev("bt(0,0)", filename, 0)) < 0)␊ |
71 | ␉{␊ |
72 | ␉␉goto fail; // fail␊ |
73 | ␉}␊ |
74 | ␉␊ |
75 | ␉if (read(fd, magic, sizeof(magic)) != sizeof(magic))␊ |
76 | ␉{␊ |
77 | ␉␉printf("Can't find magic in keyboard layout file: %s\n", filename);␊ |
78 | ␉␉goto fail;␊ |
79 | ␉}␊ |
80 | ␊ |
81 | ␉if (memcmp (magic, KEYBOARD_LAYOUTS_MAGIC, KEYBOARD_LAYOUTS_MAGIC_SIZE) != 0)␊ |
82 | ␉{␊ |
83 | ␉␉printf("Invalid magic code in keyboard layout file: %s\n", filename);␊ |
84 | ␉␉goto fail;␊ |
85 | ␉}␊ |
86 | ␊ |
87 | ␉if (read(fd, (char*) &version, sizeof(version)) != sizeof(version))␊ |
88 | ␉{␊ |
89 | ␉␉printf("Can't get version of keyboard layout file: %s\n", filename);␊ |
90 | ␉␉goto fail;␊ |
91 | ␉}␊ |
92 | ␉␊ |
93 | ␉if (version != KEYBOARD_LAYOUTS_VERSION)␊ |
94 | ␉{␊ |
95 | ␉␉verbose("Bad version for keyboard layout file %s expected v%d found v%d\n",␊ |
96 | ␉␉␉filename, KEYBOARD_LAYOUTS_VERSION, version);␊ |
97 | ␉␉goto fail;␊ |
98 | ␉}␊ |
99 | ␉␊ |
100 | ␉if (current_layout)␊ |
101 | ␉{␊ |
102 | ␉␉free(current_layout);␊ |
103 | ␉}␊ |
104 | ␊ |
105 | ␉current_layout = malloc(sizeof(*current_layout));␊ |
106 | ␉if (!current_layout)␊ |
107 | ␉{␊ |
108 | ␉␉goto fail;␊ |
109 | ␉}␊ |
110 | ␊ |
111 | ␉b_lseek(fd, KEYBOARD_LAYOUTS_MAP_OFFSET, 0);␊ |
112 | ␉␊ |
113 | ␉if (read(fd, (char*) current_layout, sizeof(*current_layout)) != sizeof(*current_layout))␊ |
114 | ␉{␊ |
115 | ␉␉printf("Wrong keyboard layout file %s size\n", filename);␊ |
116 | ␉␉goto fail;␊ |
117 | ␉}␊ |
118 | ␉␊ |
119 | ␉close(fd);␊ |
120 | ␉␊ |
121 | ␉return 1;␊ |
122 | ␊ |
123 | fail:␊ |
124 | ␊ |
125 | ␉if (current_layout)␊ |
126 | ␉{␊ |
127 | ␉␉free(current_layout);␊ |
128 | ␉␉current_layout = NULL;␊ |
129 | ␉}␊ |
130 | ␉return 0;␊ |
131 | }␊ |
132 | ␊ |
133 | void Keylayout_start()␊ |
134 | {␊ |
135 | ␉char layoutPath[512];␊ |
136 | ␉const char␉*val;␊ |
137 | ␉int␉␉␉len;␊ |
138 | ␊ |
139 | ␉if (getValueForKey("KeyLayout", &val, &len, &bootInfo->chameleonConfig))␊ |
140 | ␉{␊ |
141 | ␉␉snprintf(layoutPath, sizeof(layoutPath),"/Extra/Keymaps/%s", val);␊ |
142 | ␉␉// Add the extension if needed␊ |
143 | ␉␉if (len <= 4 || strncmp(val+len-4,".lyt", sizeof(".lyt")) != 0)␊ |
144 | ␉␉␉strlcat(layoutPath, ".lyt", sizeof(layoutPath));␊ |
145 | ␊ |
146 | ␉␉if (!load_keyboard_layout_file(layoutPath))␊ |
147 | ␉␉{␊ |
148 | ␉␉␉DBG("Can't load %s keyboard layout file. Keylayout will not be used !\n", layoutPath);␊ |
149 | ␉␉␉sleep(2);␊ |
150 | ␉␉}␊ |
151 | ␉␉else if (!replace_function("_getchar", &getchar_replacement))␊ |
152 | ␉␉{␊ |
153 | ␉␉␉printf("Can't replace function getchar: Keylayout module can't be used !\n");␊ |
154 | ␉␉␉sleep(2);␊ |
155 | ␉␉}␊ |
156 | ␉}␊ |
157 | }␊ |
158 | |