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12#include "qemu/osdep.h"
13#include "qemu/notify.h"
14#include "ui/input.h"
15
16#include <xkbcommon/xkbcommon.h>
17
18struct xkb_rule_names names = {
19 .rules = NULL,
20 .model = "pc105",
21 .layout = "us",
22 .variant = NULL,
23 .options = NULL,
24};
25
26static xkb_mod_mask_t shift;
27static xkb_mod_mask_t ctrl;
28static xkb_mod_mask_t altgr;
29static xkb_mod_mask_t numlock;
30
31static FILE *outfile;
32
33
34
35static uint32_t qcode_to_number(uint32_t qcode)
36{
37 KeyValue keyvalue;
38 uint32_t number;
39
40 keyvalue.type = KEY_VALUE_KIND_QCODE;
41 keyvalue.u.qcode.data = qcode;
42 number = qemu_input_key_value_to_number(&keyvalue);
43 assert(number != 0);
44 return number;
45}
46
47static void print_sym(xkb_keysym_t sym, uint32_t qcode, const char *mod)
48{
49 char name[64];
50
51 if (sym == XKB_KEY_NoSymbol) {
52 return;
53 }
54 xkb_keysym_get_name(sym, name, sizeof(name));
55
56
57 fprintf(outfile, "%s 0x%02x%s\n", name, qcode_to_number(qcode), mod);
58}
59
60static void walk_map(struct xkb_keymap *map, xkb_keycode_t code, void *data)
61{
62 struct xkb_state *state = data;
63 xkb_keysym_t kbase, knumlock, kshift, kaltgr, kaltgrshift;
64 uint32_t evdev, qcode;
65 char name[64];
66
67 fprintf(outfile, "\n");
68
69
70
71
72
73
74 evdev = code - 8;
75 qcode = qemu_input_linux_to_qcode(evdev);
76 if (qcode == Q_KEY_CODE_UNMAPPED) {
77 xkb_state_update_mask(state, 0, 0, 0, 0, 0, 0);
78 kbase = xkb_state_key_get_one_sym(state, code);
79 xkb_keysym_get_name(kbase, name, sizeof(name));
80 fprintf(outfile, "# evdev %d (0x%x): no evdev -> QKeyCode mapping"
81 " (xkb keysym %s)\n", evdev, evdev, name);
82 return;
83 }
84 fprintf(outfile, "# evdev %d (0x%x), QKeyCode \"%s\", number 0x%x\n",
85 evdev, evdev,
86 QKeyCode_str(qcode),
87 qcode_to_number(qcode));
88
89
90
91
92 xkb_state_update_mask(state, 0, 0, 0, 0, 0, 0);
93 kbase = xkb_state_key_get_one_sym(state, code);
94 print_sym(kbase, qcode, "");
95
96 xkb_state_update_mask(state, 0, 0, numlock, 0, 0, 0);
97 knumlock = xkb_state_key_get_one_sym(state, code);
98 if (kbase != knumlock) {
99 print_sym(knumlock, qcode, " numlock");
100 }
101
102 xkb_state_update_mask(state, shift, 0, 0, 0, 0, 0);
103 kshift = xkb_state_key_get_one_sym(state, code);
104 if (kbase != kshift && knumlock != kshift) {
105 print_sym(kshift, qcode, " shift");
106 }
107
108 xkb_state_update_mask(state, altgr, 0, 0, 0, 0, 0);
109 kaltgr = xkb_state_key_get_one_sym(state, code);
110 if (kbase != kaltgr) {
111 print_sym(kaltgr, qcode, " altgr");
112 }
113
114 xkb_state_update_mask(state, altgr | shift, 0, 0, 0, 0, 0);
115 kaltgrshift = xkb_state_key_get_one_sym(state, code);
116 if (kshift != kaltgrshift && kaltgr != kaltgrshift) {
117 print_sym(kaltgrshift, qcode, " shift altgr");
118 }
119 return;
120}
121
122static void usage(FILE *out)
123{
124 fprintf(out,
125 "\n"
126 "This tool generates qemu reverse keymaps from xkb keymaps,\n"
127 "which can be used with the qemu \"-k\" command line switch.\n"
128 "\n"
129 "usage: qemu-keymap <options>\n"
130 "options:\n"
131 " -h print this text\n"
132 " -f <file> set output file (default: stdout)\n"
133 " -m <model> set kbd model (default: %s)\n"
134 " -l <layout> set kbd layout (default: %s)\n"
135 " -v <variant> set kbd variant (default: %s)\n"
136 " -o <options> set kbd options (default: %s)\n"
137 "\n",
138 names.model, names.layout,
139 names.variant ?: "-",
140 names.options ?: "-");
141}
142
143int main(int argc, char *argv[])
144{
145 struct xkb_context *ctx;
146 struct xkb_keymap *map;
147 struct xkb_state *state;
148 xkb_mod_index_t mod, mods;
149 int rc;
150
151 for (;;) {
152 rc = getopt(argc, argv, "hm:l:v:o:f:");
153 if (rc == -1) {
154 break;
155 }
156 switch (rc) {
157 case 'm':
158 names.model = optarg;
159 break;
160 case 'l':
161 names.layout = optarg;
162 break;
163 case 'v':
164 names.variant = optarg;
165 break;
166 case 'o':
167 names.options = optarg;
168 break;
169 case 'f':
170 outfile = fopen(optarg, "w");
171 if (outfile == NULL) {
172 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
173 exit(1);
174 }
175 break;
176 case 'h':
177 usage(stdout);
178 exit(0);
179 default:
180 usage(stderr);
181 exit(1);
182 }
183 }
184
185 if (outfile == NULL) {
186 outfile = stdout;
187 }
188
189 fprintf(outfile,
190 "# SPDX-License-Identifier: GPL-2.0-or-later\n"
191 "#\n"
192 "# generated by qemu-keymap\n"
193 "# model : %s\n"
194 "# layout : %s\n"
195 "# variant : %s\n"
196 "# options : %s\n"
197 "\n",
198 names.model, names.layout,
199 names.variant ?: "-",
200 names.options ?: "-");
201
202 ctx = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
203 map = xkb_keymap_new_from_names(ctx, &names, XKB_KEYMAP_COMPILE_NO_FLAGS);
204 if (!map) {
205
206 exit(1);
207 }
208
209 fprintf(outfile, "# name: \"%s\"\n\n",
210 xkb_keymap_layout_get_name(map, 0));
211 fprintf(outfile, "# modifiers\n");
212 mods = xkb_keymap_num_mods(map);
213 for (mod = 0; mod < mods; mod++) {
214 fprintf(outfile, "# %2d: %s\n",
215 mod, xkb_keymap_mod_get_name(map, mod));
216 }
217
218 mod = xkb_keymap_mod_get_index(map, "Shift");
219 shift = (1 << mod);
220 mod = xkb_keymap_mod_get_index(map, "Control");
221 ctrl = (1 << mod);
222 mod = xkb_keymap_mod_get_index(map, "AltGr");
223 altgr = (1 << mod);
224 mod = xkb_keymap_mod_get_index(map, "NumLock");
225 numlock = (1 << mod);
226
227 state = xkb_state_new(map);
228 xkb_keymap_key_for_each(map, walk_map, state);
229
230
231 fprintf(outfile,
232 "\n"
233 "#\n"
234 "# quirks section start\n"
235 "#\n"
236 "# Sometimes multiple keysyms map to the same keycodes.\n"
237 "# The keycode -> keysym lookup finds only one of the\n"
238 "# keysyms. So append them here.\n"
239 "#\n"
240 "\n");
241 print_sym(XKB_KEY_Print, Q_KEY_CODE_SYSRQ, "");
242 print_sym(XKB_KEY_Sys_Req, Q_KEY_CODE_SYSRQ, "");
243 print_sym(XKB_KEY_Execute, Q_KEY_CODE_SYSRQ, "");
244
245 print_sym(XKB_KEY_KP_Decimal, Q_KEY_CODE_KP_DECIMAL, " numlock");
246 print_sym(XKB_KEY_KP_Separator, Q_KEY_CODE_KP_DECIMAL, " numlock");
247
248 print_sym(XKB_KEY_Alt_R, Q_KEY_CODE_ALT_R, "");
249 print_sym(XKB_KEY_ISO_Level3_Shift, Q_KEY_CODE_ALT_R, "");
250 print_sym(XKB_KEY_Mode_switch, Q_KEY_CODE_ALT_R, "");
251
252 fprintf(outfile,
253 "\n"
254 "# quirks section end\n");
255
256 exit(0);
257}
258
