280 lines
8.0 KiB
C
280 lines
8.0 KiB
C
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#include <linux/config.h>
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#include <linux/kd.h>
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//#include <linux/kbd_ll.h>
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#include <linux/kbd_kern.h>
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/*
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* Translation of escaped scancodes to keycodes.
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* This is now user-settable.
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* The keycodes 1-88,96-111,119 are fairly standard, and
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* should probably not be changed - changing might confuse X.
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* X also interprets scancode 0x5d (KEY_Begin).
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*
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* For 1-88 keycode equals scancode.
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*/
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#define E0_KPENTER 96
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#define E0_RCTRL 97
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#define E0_KPSLASH 98
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#define E0_PRSCR 99
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#define E0_RALT 100
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#define E0_BREAK 101 /* (control-pause) */
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#define E0_HOME 102
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#define E0_UP 103
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#define E0_PGUP 104
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#define E0_LEFT 105
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#define E0_RIGHT 106
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#define E0_END 107
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#define E0_DOWN 108
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#define E0_PGDN 109
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#define E0_INS 110
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#define E0_DEL 111
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/* for USB 106 keyboard */
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#define E0_YEN 124
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#define E0_BACKSLASH 89
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#define E1_PAUSE 119
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/*
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* The keycodes below are randomly located in 89-95,112-118,120-127.
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* They could be thrown away (and all occurrences below replaced by 0),
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* but that would force many users to use the `setkeycodes' utility, where
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* they needed not before. It does not matter that there are duplicates, as
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* long as no duplication occurs for any single keyboard.
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*/
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#define SC_LIM 89
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#define FOCUS_PF1 85 /* actual code! */
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#define FOCUS_PF2 89
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#define FOCUS_PF3 90
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#define FOCUS_PF4 91
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#define FOCUS_PF5 92
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#define FOCUS_PF6 93
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#define FOCUS_PF7 94
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#define FOCUS_PF8 95
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#define FOCUS_PF9 120
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#define FOCUS_PF10 121
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#define FOCUS_PF11 122
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#define FOCUS_PF12 123
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#define JAP_86 124
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/* tfj@olivia.ping.dk:
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* The four keys are located over the numeric keypad, and are
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* labelled A1-A4. It's an rc930 keyboard, from
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* Regnecentralen/RC International, Now ICL.
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* Scancodes: 59, 5a, 5b, 5c.
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*/
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#define RGN1 124
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#define RGN2 125
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#define RGN3 126
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#define RGN4 127
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static unsigned char high_keys[128 - SC_LIM] = {
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RGN1, RGN2, RGN3, RGN4, 0, 0, 0, /* 0x59-0x5f */
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0, 0, 0, 0, 0, 0, 0, 0, /* 0x60-0x67 */
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0, 0, 0, 0, 0, FOCUS_PF11, 0, FOCUS_PF12, /* 0x68-0x6f */
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0, 0, 0, FOCUS_PF2, FOCUS_PF9, 0, 0, FOCUS_PF3, /* 0x70-0x77 */
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FOCUS_PF4, FOCUS_PF5, FOCUS_PF6, FOCUS_PF7, /* 0x78-0x7b */
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FOCUS_PF8, JAP_86, FOCUS_PF10, 0 /* 0x7c-0x7f */
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};
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/* BTC */
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#define E0_MACRO 112
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/* LK450 */
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#define E0_F13 113
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#define E0_F14 114
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#define E0_HELP 115
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#define E0_DO 116
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#define E0_F17 117
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#define E0_KPMINPLUS 118
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/*
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* My OmniKey generates e0 4c for the "OMNI" key and the
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* right alt key does nada. [kkoller@nyx10.cs.du.edu]
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*/
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#define E0_OK 124
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/*
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* New microsoft keyboard is rumoured to have
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* e0 5b (left window button), e0 5c (right window button),
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* e0 5d (menu button). [or: LBANNER, RBANNER, RMENU]
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* [or: Windows_L, Windows_R, TaskMan]
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*/
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#define E0_MSLW 125
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#define E0_MSRW 126
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#define E0_MSTM 127
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static unsigned char e0_keys[128] = {
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0, 0, 0, 0, 0, 0, 0, 0, /* 0x00-0x07 */
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0, 0, 0, 0, 0, 0, 0, 0, /* 0x08-0x0f */
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0, 0, 0, 0, 0, 0, 0, 0, /* 0x10-0x17 */
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0, 0, 0, 0, E0_KPENTER, E0_RCTRL, 0, 0, /* 0x18-0x1f */
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0, 0, 0, 0, 0, 0, 0, 0, /* 0x20-0x27 */
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0, 0, 0, 0, 0, 0, 0, 0, /* 0x28-0x2f */
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0, 0, 0, 0, 0, E0_KPSLASH, 0, E0_PRSCR, /* 0x30-0x37 */
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E0_RALT, 0, 0, 0, 0, E0_F13, E0_F14, E0_HELP, /* 0x38-0x3f */
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E0_DO, E0_F17, 0, 0, 0, 0, E0_BREAK, E0_HOME, /* 0x40-0x47 */
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E0_UP, E0_PGUP, 0, E0_LEFT, E0_OK, E0_RIGHT, E0_KPMINPLUS, E0_END, /* 0x48-0x4f */
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E0_DOWN, E0_PGDN, E0_INS, E0_DEL, 0, 0, 0, 0, /* 0x50-0x57 */
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0, 0, 0, E0_MSLW, E0_MSRW, E0_MSTM, 0, 0, /* 0x58-0x5f */
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0, 0, 0, 0, 0, 0, 0, 0, /* 0x60-0x67 */
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0, 0, 0, 0, 0, 0, 0, E0_MACRO, /* 0x68-0x6f */
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//0, 0, 0, 0, 0, 0, 0, 0, /* 0x70-0x77 */
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0, 0, 0, 0, 0, E0_BACKSLASH, 0, 0, /* 0x70-0x77 */
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0, 0, 0, E0_YEN, 0, 0, 0, 0 /* 0x78-0x7f */
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};
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static int gen_setkeycode(unsigned int scancode, unsigned int keycode)
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{
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if (scancode < SC_LIM || scancode > 255 || keycode > 127)
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return -EINVAL;
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if (scancode < 128)
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high_keys[scancode - SC_LIM] = keycode;
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else
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e0_keys[scancode - 128] = keycode;
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return 0;
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}
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static int gen_getkeycode(unsigned int scancode)
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{
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return
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(scancode < SC_LIM || scancode > 255) ? -EINVAL :
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(scancode <
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128) ? high_keys[scancode - SC_LIM] : e0_keys[scancode - 128];
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}
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static int
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gen_translate(unsigned char scancode, unsigned char *keycode, char raw_mode)
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{
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static int prev_scancode;
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/* special prefix scancodes.. */
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if (scancode == 0xe0 || scancode == 0xe1) {
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prev_scancode = scancode;
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return 0;
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}
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/* 0xFF is sent by a few keyboards, ignore it. 0x00 is error */
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if (scancode == 0x00 || scancode == 0xff) {
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prev_scancode = 0;
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return 0;
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}
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scancode &= 0x7f;
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if (prev_scancode) {
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/*
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* usually it will be 0xe0, but a Pause key generates
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* e1 1d 45 e1 9d c5 when pressed, and nothing when released
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*/
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if (prev_scancode != 0xe0) {
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if (prev_scancode == 0xe1 && scancode == 0x1d) {
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prev_scancode = 0x100;
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return 0;
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}
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else if (prev_scancode == 0x100
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&& scancode == 0x45) {
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*keycode = E1_PAUSE;
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prev_scancode = 0;
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} else {
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#ifdef KBD_REPORT_UNKN
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if (!raw_mode)
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printk(KERN_INFO
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"keyboard: unknown e1 escape sequence\n");
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#endif
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prev_scancode = 0;
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return 0;
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}
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} else {
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prev_scancode = 0;
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/*
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* The keyboard maintains its own internal caps lock and
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* num lock statuses. In caps lock mode E0 AA precedes make
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* code and E0 2A follows break code. In num lock mode,
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* E0 2A precedes make code and E0 AA follows break code.
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* We do our own book-keeping, so we will just ignore these.
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*/
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/*
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* For my keyboard there is no caps lock mode, but there are
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* both Shift-L and Shift-R modes. The former mode generates
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* E0 2A / E0 AA pairs, the latter E0 B6 / E0 36 pairs.
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* So, we should also ignore the latter. - aeb@cwi.nl
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*/
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if (scancode == 0x2a || scancode == 0x36)
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return 0;
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if (e0_keys[scancode])
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*keycode = e0_keys[scancode];
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else {
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#ifdef KBD_REPORT_UNKN
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if (!raw_mode)
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printk(KERN_INFO
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"keyboard: unknown scancode e0 %02x\n",
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scancode);
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#endif
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return 0;
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}
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}
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} else if (scancode >= SC_LIM) {
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/* This happens with the FOCUS 9000 keyboard
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Its keys PF1..PF12 are reported to generate
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55 73 77 78 79 7a 7b 7c 74 7e 6d 6f
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Moreover, unless repeated, they do not generate
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key-down events, so we have to zero up_flag below */
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/* Also, Japanese 86/106 keyboards are reported to
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generate 0x73 and 0x7d for \ - and \ | respectively. */
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/* Also, some Brazilian keyboard is reported to produce
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0x73 and 0x7e for \ ? and KP-dot, respectively. */
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*keycode = high_keys[scancode - SC_LIM];
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if (!*keycode) {
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if (!raw_mode) {
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#ifdef KBD_REPORT_UNKN
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printk(KERN_INFO
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"keyboard: unrecognized scancode (%02x)"
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" - ignored\n", scancode);
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#endif
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}
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return 0;
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}
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} else
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*keycode = scancode;
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return 1;
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}
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static char gen_unexpected_up(unsigned char keycode)
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{
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/* unexpected, but this can happen: maybe this was a key release for a
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FOCUS 9000 PF key; if we want to see it, we have to clear up_flag */
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if (keycode >= SC_LIM || keycode == 85)
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return 0;
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else
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return 0200;
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}
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/*
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* These are the default mappings
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*/
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int (*k_setkeycode)(unsigned int, unsigned int) = gen_setkeycode;
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int (*k_getkeycode)(unsigned int) = gen_getkeycode;
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int (*k_translate)(unsigned char, unsigned char *, char) = gen_translate;
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char (*k_unexpected_up)(unsigned char) = gen_unexpected_up;
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void (*k_leds)(unsigned char);
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/* Simple translation table for the SysRq keys */
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#ifdef CONFIG_MAGIC_SYSRQ
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static unsigned char gen_sysrq_xlate[128] =
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"\000\0331234567890-=\177\t" /* 0x00 - 0x0f */
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"qwertyuiop[]\r\000as" /* 0x10 - 0x1f */
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"dfghjkl;'`\000\\zxcv" /* 0x20 - 0x2f */
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"bnm,./\000*\000 \000\201\202\203\204\205" /* 0x30 - 0x3f */
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"\206\207\210\211\212\000\000789-456+1" /* 0x40 - 0x4f */
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"230\177\000\000\213\214\000\000\000\000\000\000\000\000\000\000" /* 0x50 - 0x5f */
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"\r\000/"; /* 0x60 - 0x6f */
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unsigned char *k_sysrq_xlate = gen_sysrq_xlate;
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int k_sysrq_key = 0x54;
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#endif
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