blob: 22d2c93aaf1a7d34f930e7f9a9034ecfb6a37cb0 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001#include <linux/config.h>
2#include <linux/kd.h>
3//#include <linux/kbd_ll.h>
4#include <linux/kbd_kern.h>
5
6/*
7 * Translation of escaped scancodes to keycodes.
8 * This is now user-settable.
9 * The keycodes 1-88,96-111,119 are fairly standard, and
10 * should probably not be changed - changing might confuse X.
11 * X also interprets scancode 0x5d (KEY_Begin).
12 *
13 * For 1-88 keycode equals scancode.
14 */
15
16#define E0_KPENTER 96
17#define E0_RCTRL 97
18#define E0_KPSLASH 98
19#define E0_PRSCR 99
20#define E0_RALT 100
21#define E0_BREAK 101 /* (control-pause) */
22#define E0_HOME 102
23#define E0_UP 103
24#define E0_PGUP 104
25#define E0_LEFT 105
26#define E0_RIGHT 106
27#define E0_END 107
28#define E0_DOWN 108
29#define E0_PGDN 109
30#define E0_INS 110
31#define E0_DEL 111
32
33/* for USB 106 keyboard */
34#define E0_YEN 124
35#define E0_BACKSLASH 89
36
37
38#define E1_PAUSE 119
39
40/*
41 * The keycodes below are randomly located in 89-95,112-118,120-127.
42 * They could be thrown away (and all occurrences below replaced by 0),
43 * but that would force many users to use the `setkeycodes' utility, where
44 * they needed not before. It does not matter that there are duplicates, as
45 * long as no duplication occurs for any single keyboard.
46 */
47#define SC_LIM 89
48
49#define FOCUS_PF1 85 /* actual code! */
50#define FOCUS_PF2 89
51#define FOCUS_PF3 90
52#define FOCUS_PF4 91
53#define FOCUS_PF5 92
54#define FOCUS_PF6 93
55#define FOCUS_PF7 94
56#define FOCUS_PF8 95
57#define FOCUS_PF9 120
58#define FOCUS_PF10 121
59#define FOCUS_PF11 122
60#define FOCUS_PF12 123
61
62#define JAP_86 124
63/* tfj@olivia.ping.dk:
64 * The four keys are located over the numeric keypad, and are
65 * labelled A1-A4. It's an rc930 keyboard, from
66 * Regnecentralen/RC International, Now ICL.
67 * Scancodes: 59, 5a, 5b, 5c.
68 */
69#define RGN1 124
70#define RGN2 125
71#define RGN3 126
72#define RGN4 127
73
74static unsigned char high_keys[128 - SC_LIM] = {
75 RGN1, RGN2, RGN3, RGN4, 0, 0, 0, /* 0x59-0x5f */
76 0, 0, 0, 0, 0, 0, 0, 0, /* 0x60-0x67 */
77 0, 0, 0, 0, 0, FOCUS_PF11, 0, FOCUS_PF12, /* 0x68-0x6f */
78 0, 0, 0, FOCUS_PF2, FOCUS_PF9, 0, 0, FOCUS_PF3, /* 0x70-0x77 */
79 FOCUS_PF4, FOCUS_PF5, FOCUS_PF6, FOCUS_PF7, /* 0x78-0x7b */
80 FOCUS_PF8, JAP_86, FOCUS_PF10, 0 /* 0x7c-0x7f */
81};
82
83/* BTC */
84#define E0_MACRO 112
85/* LK450 */
86#define E0_F13 113
87#define E0_F14 114
88#define E0_HELP 115
89#define E0_DO 116
90#define E0_F17 117
91#define E0_KPMINPLUS 118
92/*
93 * My OmniKey generates e0 4c for the "OMNI" key and the
94 * right alt key does nada. [kkoller@nyx10.cs.du.edu]
95 */
96#define E0_OK 124
97/*
98 * New microsoft keyboard is rumoured to have
99 * e0 5b (left window button), e0 5c (right window button),
100 * e0 5d (menu button). [or: LBANNER, RBANNER, RMENU]
101 * [or: Windows_L, Windows_R, TaskMan]
102 */
103#define E0_MSLW 125
104#define E0_MSRW 126
105#define E0_MSTM 127
106
107static unsigned char e0_keys[128] = {
108 0, 0, 0, 0, 0, 0, 0, 0, /* 0x00-0x07 */
109 0, 0, 0, 0, 0, 0, 0, 0, /* 0x08-0x0f */
110 0, 0, 0, 0, 0, 0, 0, 0, /* 0x10-0x17 */
111 0, 0, 0, 0, E0_KPENTER, E0_RCTRL, 0, 0, /* 0x18-0x1f */
112 0, 0, 0, 0, 0, 0, 0, 0, /* 0x20-0x27 */
113 0, 0, 0, 0, 0, 0, 0, 0, /* 0x28-0x2f */
114 0, 0, 0, 0, 0, E0_KPSLASH, 0, E0_PRSCR, /* 0x30-0x37 */
115 E0_RALT, 0, 0, 0, 0, E0_F13, E0_F14, E0_HELP, /* 0x38-0x3f */
116 E0_DO, E0_F17, 0, 0, 0, 0, E0_BREAK, E0_HOME, /* 0x40-0x47 */
117 E0_UP, E0_PGUP, 0, E0_LEFT, E0_OK, E0_RIGHT, E0_KPMINPLUS, E0_END, /* 0x48-0x4f */
118 E0_DOWN, E0_PGDN, E0_INS, E0_DEL, 0, 0, 0, 0, /* 0x50-0x57 */
119 0, 0, 0, E0_MSLW, E0_MSRW, E0_MSTM, 0, 0, /* 0x58-0x5f */
120 0, 0, 0, 0, 0, 0, 0, 0, /* 0x60-0x67 */
121 0, 0, 0, 0, 0, 0, 0, E0_MACRO, /* 0x68-0x6f */
122 //0, 0, 0, 0, 0, 0, 0, 0, /* 0x70-0x77 */
123 0, 0, 0, 0, 0, E0_BACKSLASH, 0, 0, /* 0x70-0x77 */
124 0, 0, 0, E0_YEN, 0, 0, 0, 0 /* 0x78-0x7f */
125};
126
127static int gen_setkeycode(unsigned int scancode, unsigned int keycode)
128{
129 if (scancode < SC_LIM || scancode > 255 || keycode > 127)
130 return -EINVAL;
131 if (scancode < 128)
132 high_keys[scancode - SC_LIM] = keycode;
133 else
134 e0_keys[scancode - 128] = keycode;
135 return 0;
136}
137
138static int gen_getkeycode(unsigned int scancode)
139{
140 return
141 (scancode < SC_LIM || scancode > 255) ? -EINVAL :
142 (scancode <
143 128) ? high_keys[scancode - SC_LIM] : e0_keys[scancode - 128];
144}
145
146static int
147gen_translate(unsigned char scancode, unsigned char *keycode, char raw_mode)
148{
149 static int prev_scancode;
150
151 /* special prefix scancodes.. */
152 if (scancode == 0xe0 || scancode == 0xe1) {
153 prev_scancode = scancode;
154 return 0;
155 }
156
157 /* 0xFF is sent by a few keyboards, ignore it. 0x00 is error */
158 if (scancode == 0x00 || scancode == 0xff) {
159 prev_scancode = 0;
160 return 0;
161 }
162
163 scancode &= 0x7f;
164
165 if (prev_scancode) {
166 /*
167 * usually it will be 0xe0, but a Pause key generates
168 * e1 1d 45 e1 9d c5 when pressed, and nothing when released
169 */
170 if (prev_scancode != 0xe0) {
171 if (prev_scancode == 0xe1 && scancode == 0x1d) {
172 prev_scancode = 0x100;
173 return 0;
174 }
175 else if (prev_scancode == 0x100
176 && scancode == 0x45) {
177 *keycode = E1_PAUSE;
178 prev_scancode = 0;
179 } else {
180#ifdef KBD_REPORT_UNKN
181 if (!raw_mode)
182 printk(KERN_INFO
183 "keyboard: unknown e1 escape sequence\n");
184#endif
185 prev_scancode = 0;
186 return 0;
187 }
188 } else {
189 prev_scancode = 0;
190 /*
191 * The keyboard maintains its own internal caps lock and
192 * num lock statuses. In caps lock mode E0 AA precedes make
193 * code and E0 2A follows break code. In num lock mode,
194 * E0 2A precedes make code and E0 AA follows break code.
195 * We do our own book-keeping, so we will just ignore these.
196 */
197 /*
198 * For my keyboard there is no caps lock mode, but there are
199 * both Shift-L and Shift-R modes. The former mode generates
200 * E0 2A / E0 AA pairs, the latter E0 B6 / E0 36 pairs.
201 * So, we should also ignore the latter. - aeb@cwi.nl
202 */
203 if (scancode == 0x2a || scancode == 0x36)
204 return 0;
205
206 if (e0_keys[scancode])
207 *keycode = e0_keys[scancode];
208 else {
209#ifdef KBD_REPORT_UNKN
210 if (!raw_mode)
211 printk(KERN_INFO
212 "keyboard: unknown scancode e0 %02x\n",
213 scancode);
214#endif
215 return 0;
216 }
217 }
218 } else if (scancode >= SC_LIM) {
219 /* This happens with the FOCUS 9000 keyboard
220 Its keys PF1..PF12 are reported to generate
221 55 73 77 78 79 7a 7b 7c 74 7e 6d 6f
222 Moreover, unless repeated, they do not generate
223 key-down events, so we have to zero up_flag below */
224 /* Also, Japanese 86/106 keyboards are reported to
225 generate 0x73 and 0x7d for \ - and \ | respectively. */
226 /* Also, some Brazilian keyboard is reported to produce
227 0x73 and 0x7e for \ ? and KP-dot, respectively. */
228
229 *keycode = high_keys[scancode - SC_LIM];
230
231 if (!*keycode) {
232 if (!raw_mode) {
233#ifdef KBD_REPORT_UNKN
234 printk(KERN_INFO
235 "keyboard: unrecognized scancode (%02x)"
236 " - ignored\n", scancode);
237#endif
238 }
239 return 0;
240 }
241 } else
242 *keycode = scancode;
243 return 1;
244}
245
246static char gen_unexpected_up(unsigned char keycode)
247{
248 /* unexpected, but this can happen: maybe this was a key release for a
249 FOCUS 9000 PF key; if we want to see it, we have to clear up_flag */
250 if (keycode >= SC_LIM || keycode == 85)
251 return 0;
252 else
253 return 0200;
254}
255
256/*
257 * These are the default mappings
258 */
259int (*k_setkeycode)(unsigned int, unsigned int) = gen_setkeycode;
260int (*k_getkeycode)(unsigned int) = gen_getkeycode;
261int (*k_translate)(unsigned char, unsigned char *, char) = gen_translate;
262char (*k_unexpected_up)(unsigned char) = gen_unexpected_up;
263void (*k_leds)(unsigned char);
264
265/* Simple translation table for the SysRq keys */
266
267#ifdef CONFIG_MAGIC_SYSRQ
268static unsigned char gen_sysrq_xlate[128] =
269 "\000\0331234567890-=\177\t" /* 0x00 - 0x0f */
270 "qwertyuiop[]\r\000as" /* 0x10 - 0x1f */
271 "dfghjkl;'`\000\\zxcv" /* 0x20 - 0x2f */
272 "bnm,./\000*\000 \000\201\202\203\204\205" /* 0x30 - 0x3f */
273 "\206\207\210\211\212\000\000789-456+1" /* 0x40 - 0x4f */
274 "230\177\000\000\213\214\000\000\000\000\000\000\000\000\000\000" /* 0x50 - 0x5f */
275 "\r\000/"; /* 0x60 - 0x6f */
276
277unsigned char *k_sysrq_xlate = gen_sysrq_xlate;
278int k_sysrq_key = 0x54;
279#endif