/* * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */ /* * keyboard input */#include "u.h"#include "../port/lib.h"#include "mem.h"#include "dat.h"#include "fns.h"#include "io.h"#include "../port/error.h" enum { Data= 0x60, /* data port */ Status= 0x64, /* status port */ Inready= 0x01, /* input character ready */ Outbusy= 0x02, /* output busy */ Sysflag= 0x04, /* system flag */ Cmddata= 0x08, /* cmd==0, data==1 */ Inhibit= 0x10, /* keyboard/mouse inhibited */ Minready= 0x20, /* mouse character ready */ Rtimeout= 0x40, /* general timeout */ Parity= 0x80, Cmd= 0x64, /* command port (write only) */ Spec= 0xF800, /* Unicode private space */ PF= Spec|0x20, /* num pad function key */ View= Spec|0x00, /* view (shift window up) */ KF= 0xF000, /* function key (begin Unicode private space) */ Shift= Spec|0x60, Break= Spec|0x61, Ctrl= Spec|0x62, Latin= Spec|0x63, Caps= Spec|0x64, Num= Spec|0x65, Middle= Spec|0x66, Altgr= Spec|0x67, Kmouse= Spec|0x100, No= 0x00, /* peter */ Home= KF|13, Up= KF|14, Pgup= KF|15, Print= KF|16, Left= KF|17, Right= KF|18, End= KF|24, Down= View, Pgdown= KF|19, Ins= KF|20, Del= 0x7F, Scroll= KF|21, Nscan= 128, Int= 0, /* kbscans indices */ Ext, Nscans,}; /* * The codes at 0x79 and 0x7b are produced by the PFU Happy Hacking keyboard. * A 'standard' keyboard doesn't produce anything above 0x58. */Rune kbtab[Nscan] = {[0x00] No, 0x1b, '1', '2', '3', '4', '5', '6',[0x08] '7', '8', '9', '0', '-', '=', '\b', '\t',[0x10] 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i',[0x18] 'o', 'p', '[', ']', '\n', Ctrl, 'a', 's',[0x20] 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';',[0x28] '\'', '`', Shift, '\\', 'z', 'x', 'c', 'v',[0x30] 'b', 'n', 'm', ',', '.', '/', Shift, '*',[0x38] Latin, ' ', Ctrl, KF|1, KF|2, KF|3, KF|4, KF|5,[0x40] KF|6, KF|7, KF|8, KF|9, KF|10, Num, Scroll, '7',[0x48] '8', '9', '-', '4', '5', '6', '+', '1',[0x50] '2', '3', '0', '.', No, No, No, KF|11,[0x58] KF|12, No, No, No, No, No, No, No,[0x60] No, No, No, No, No, No, No, No,[0x68] No, No, No, No, No, No, No, No,[0x70] No, No, No, No, No, No, No, No,[0x78] No, View, No, Up, No, No, No, No,}; Rune kbtabshift[Nscan] ={[0x00] No, 0x1b, '!', '@', '#', '$', '%', '^',[0x08] '&', '*', '(', ')', '_', '+', '\b', '\t',[0x10] 'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I',[0x18] 'O', 'P', '{', '}', '\n', Ctrl, 'A', 'S',[0x20] 'D', 'F', 'G', 'H', 'J', 'K', 'L', ':',[0x28] '"', '~', Shift, '|', 'Z', 'X', 'C', 'V',[0x30] 'B', 'N', 'M', '<', '>', '?', Shift, '*',[0x38] Latin, ' ', Ctrl, KF|1, KF|2, KF|3, KF|4, KF|5,[0x40] KF|6, KF|7, KF|8, KF|9, KF|10, Num, Scroll, '7',[0x48] '8', '9', '-', '4', '5', '6', '+', '1',[0x50] '2', '3', '0', '.', No, No, No, KF|11,[0x58] KF|12, No, No, No, No, No, No, No,[0x60] No, No, No, No, No, No, No, No,[0x68] No, No, No, No, No, No, No, No,[0x70] No, No, No, No, No, No, No, No,[0x78] No, Up, No, Up, No, No, No, No,}; Rune kbtabesc1[Nscan] ={[0x00] No, No, No, No, No, No, No, No,[0x08] No, No, No, No, No, No, No, No,[0x10] No, No, No, No, No, No, No, No,[0x18] No, No, No, No, '\n', Ctrl, No, No,[0x20] No, No, No, No, No, No, No, No,[0x28] No, No, Shift, No, No, No, No, No,[0x30] No, No, No, No, No, '/', No, Print,[0x38] Altgr, No, No, No, No, No, No, No,[0x40] No, No, No, No, No, No, Break, Home,[0x48] Up, Pgup, No, Left, No, Right, No, End,[0x50] Down, Pgdown, Ins, Del, No, No, No, No,[0x58] No, No, No, No, No, No, No, No,[0x60] No, No, No, No, No, No, No, No,[0x68] No, No, No, No, No, No, No, No,[0x70] No, No, No, No, No, No, No, No,[0x78] No, Up, No, No, No, No, No, No,}; Rune kbtabaltgr[Nscan] ={[0x00] No, No, No, No, No, No, No, No,[0x08] No, No, No, No, No, No, No, No,[0x10] No, No, No, No, No, No, No, No,[0x18] No, No, No, No, '\n', Ctrl, No, No,[0x20] No, No, No, No, No, No, No, No,[0x28] No, No, Shift, No, No, No, No, No,[0x30] No, No, No, No, No, '/', No, Print,[0x38] Altgr, No, No, No, No, No, No, No,[0x40] No, No, No, No, No, No, Break, Home,[0x48] Up, Pgup, No, Left, No, Right, No, End,[0x50] Down, Pgdown, Ins, Del, No, No, No, No,[0x58] No, No, No, No, No, No, No, No,[0x60] No, No, No, No, No, No, No, No,[0x68] No, No, No, No, No, No, No, No,[0x70] No, No, No, No, No, No, No, No,[0x78] No, Up, No, No, No, No, No, No,}; Rune kbtabctrl[Nscan] ={[0x00] No, '', '', '', '', '', '', '', [0x08] '', '', '', '', '
', ' ', '\b', '\t',[0x10] '', '', '', '', '', '', '', '\t',[0x18] '', '', '', ' ', '\n', Ctrl, '', '', [0x20] '', '', '', '\b', '\n', ' ', ' ', '', [0x28] '', No, Shift, ' ', '', '', '', '', [0x30] '', '', '
', ' ', '', '', Shift, '\n',[0x38] Latin, No, Ctrl, '', '', '', '', '', [0x40] '', '', ' ', '
', '', '', '', '', [0x48] '', '', '
', '', '', '', ' ', '', [0x50] '', '', '', '', No, No, No, '', [0x58] ' ', No, No, No, No, No, No, No,[0x60] No, No, No, No, No, No, No, No,[0x68] No, No, No, No, No, No, No, No,[0x70] No, No, No, No, No, No, No, No,[0x78] No, '', No, '\b', No, No, No, No,}; enum{ /* controller command byte */ Cscs1= (1<<6), /* scan code set 1 */ Cauxdis= (1<<5), /* mouse disable */ Ckbddis= (1<<4), /* kbd disable */ Csf= (1<<2), /* system flag */ Cauxint= (1<<1), /* mouse interrupt enable */ Ckbdint= (1<<0), /* kbd interrupt enable */}; int mouseshifted;void (*kbdmouse)(int); static Lock i8042lock;static uchar ccc;static void (*auxputc)(int, int);static int nokbd = 1; /* flag: no PS/2 keyboard */ /* * wait for output no longer busy */static intoutready(void){ int tries; for(tries = 0; (inb(Status) & Outbusy); tries++){ if(tries > 500) return -1; delay(2); } return 0;} /* * wait for input */static intinready(void){ int tries; for(tries = 0; !(inb(Status) & Inready); tries++){ if(tries > 500) return -1; delay(2); } return 0;} /* * ask 8042 to enable the use of address bit 20 */voidi8042a20(void){ outready(); outb(Cmd, 0xD1); outready(); outb(Data, 0xDF); outready();} /* * ask 8042 to reset the machine */voidi8042reset(void){ int i, x; if(nokbd) return; *((ushort*)KADDR(0x472)) = 0x1234; /* BIOS warm-boot flag */ /* * newer reset the machine command */ outready(); outb(Cmd, 0xFE); outready(); /* * Pulse it by hand (old somewhat reliable) */ x = 0xDF; for(i = 0; i < 5; i++){ x ^= 1; outready(); outb(Cmd, 0xD1); outready(); outb(Data, x); /* toggle reset */ delay(100); }} inti8042auxcmd(int cmd){ unsigned int c; int tries; static int badkbd; if(badkbd) return -1; c = 0; tries = 0; ilock(&i8042lock); do{ if(tries++ > 2) break; if(outready() < 0) break; outb(Cmd, 0xD4); if(outready() < 0) break; outb(Data, cmd); if(outready() < 0) break; if(inready() < 0) break; c = inb(Data); } while(c == 0xFE || c == 0); iunlock(&i8042lock); if(c != 0xFA){ print("i8042: %2.2ux returned to the %2.2ux command\n", c, cmd); badkbd = 1; /* don't keep trying; there might not be one */ return -1; } return 0;} inti8042auxcmds(uchar *cmd, int ncmd){ int i; ilock(&i8042lock); for(i=0; i<ncmd; i++){ if(outready() < 0) break; outb(Cmd, 0xD4); if(outready() < 0) break; outb(Data, cmd[i]); } iunlock(&i8042lock); return i;} typedef struct Kbscan Kbscan;struct Kbscan { int esc1; int esc2; int alt; int altgr; int caps; int ctl; int num; int shift; int collecting; int nk; Rune kc[5]; int buttons;}; Kbscan kbscans[Nscans]; /* kernel and external scan code state */ static int kdebug; /* * set keyboard's leds for lock states (scroll, numeric, caps). * * at least one keyboard (from Qtronics) also sets its numeric-lock * behaviour to match the led state, though it has no numeric keypad, * and some BIOSes bring the system up with numeric-lock set and no * setting to change that. this combination steals the keys for these * characters and makes it impossible to generate them: uiolkjm&*(). * thus we'd like to be able to force the numeric-lock led (and behaviour) off. */static voidsetleds(Kbscan *kbscan){ int leds; if(nokbd || kbscan != &kbscans[Int]) return; leds = 0; if(kbscan->num) leds |= 1<<1; if(0 && kbscan->caps) /* we don't implement caps lock */ leds |= 1<<2; ilock(&i8042lock); outready(); outb(Data, 0xed); /* `reset keyboard lock states' */ if(inready() == 0) inb(Data); outready(); outb(Data, leds); if(inready() == 0) inb(Data); outready(); iunlock(&i8042lock);} /* * Scan code processing */voidkbdputsc(int c, int external){ int i, keyup; Kbscan *kbscan; if(external) kbscan = &kbscans[Ext]; else kbscan = &kbscans[Int]; if(kdebug) print("sc %x ms %d\n", c, mouseshifted); /* * e0's is the first of a 2 character sequence, e1 the first * of a 3 character sequence (on the safari) */ if(c == 0xe0){ kbscan->esc1 = 1; return; } else if(c == 0xe1){ kbscan->esc2 = 2; return; } keyup = c & 0x80; c &= 0x7f; if(c > sizeof kbtab){ c |= keyup; if(c != 0xFF) /* these come fairly often: CAPSLOCK U Y */ print("unknown key %ux\n", c); return; } if(kbscan->esc1){ c = kbtabesc1[c]; kbscan->esc1 = 0; } else if(kbscan->esc2){ kbscan->esc2--; return; } else if(kbscan->shift) c = kbtabshift[c]; else if(kbscan->altgr) c = kbtabaltgr[c]; else if(kbscan->ctl) c = kbtabctrl[c]; else c = kbtab[c]; if(kbscan->caps && c<='z' && c>='a') c += 'A' - 'a'; /* * keyup only important for shifts */ if(keyup){ switch(c){ case Latin: kbscan->alt = 0; break; case Shift: kbscan->shift = 0; mouseshifted = 0; if(kdebug) print("shiftclr\n"); break; case Ctrl: kbscan->ctl = 0; break; case Altgr: kbscan->altgr = 0; break; case Kmouse|1: case Kmouse|2: case Kmouse|3: case Kmouse|4: case Kmouse|5: kbscan->buttons &= ~(1<<(c-Kmouse-1)); if(kbdmouse) kbdmouse(kbscan->buttons); break; } return; } /* * normal character */ if(!(c & (Spec|KF))){ if(kbscan->ctl) if(kbscan->alt && c == Del) exit(0); if(!kbscan->collecting){ kbdputc(kbdq, c); return; } kbscan->kc[kbscan->nk++] = c; c = latin1(kbscan->kc, kbscan->nk); if(c < -1) /* need more keystrokes */ return; if(c != -1) /* valid sequence */ kbdputc(kbdq, c); else /* dump characters */ for(i=0; i<kbscan->nk; i++) kbdputc(kbdq, kbscan->kc[i]); kbscan->nk = 0; kbscan->collecting = 0; return; } else { switch(c){ case Caps:Lines 1–500 of 750. Load more
/* * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */ /* * keyboard input */ #include "u.h" #include "../port/lib.h" #include "mem.h" #include "dat.h" #include "fns.h" #include "io.h" #include "../port/error.h" enum { Data= 0x60, /* data port */ Status= 0x64, /* status port */ Inready= 0x01, /* input character ready */ Outbusy= 0x02, /* output busy */ Sysflag= 0x04, /* system flag */ Cmddata= 0x08, /* cmd==0, data==1 */ Inhibit= 0x10, /* keyboard/mouse inhibited */ Minready= 0x20, /* mouse character ready */ Rtimeout= 0x40, /* general timeout */ Parity= 0x80, Cmd= 0x64, /* command port (write only) */ Spec= 0xF800, /* Unicode private space */ PF= Spec|0x20, /* num pad function key */ View= Spec|0x00, /* view (shift window up) */ KF= 0xF000, /* function key (begin Unicode private space) */ Shift= Spec|0x60, Break= Spec|0x61, Ctrl= Spec|0x62, Latin= Spec|0x63, Caps= Spec|0x64, Num= Spec|0x65, Middle= Spec|0x66, Altgr= Spec|0x67, Kmouse= Spec|0x100, No= 0x00, /* peter */ Home= KF|13, Up= KF|14, Pgup= KF|15, Print= KF|16, Left= KF|17, Right= KF|18, End= KF|24, Down= View, Pgdown= KF|19, Ins= KF|20, Del= 0x7F, Scroll= KF|21, Nscan= 128, Int= 0, /* kbscans indices */ Ext, Nscans, }; /* * The codes at 0x79 and 0x7b are produced by the PFU Happy Hacking keyboard. * A 'standard' keyboard doesn't produce anything above 0x58. */ Rune kbtab[Nscan] = { [0x00] No, 0x1b, '1', '2', '3', '4', '5', '6', [0x08] '7', '8', '9', '0', '-', '=', '\b', '\t', [0x10] 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', [0x18] 'o', 'p', '[', ']', '\n', Ctrl, 'a', 's', [0x20] 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', [0x28] '\'', '`', Shift, '\\', 'z', 'x', 'c', 'v', [0x30] 'b', 'n', 'm', ',', '.', '/', Shift, '*', [0x38] Latin, ' ', Ctrl, KF|1, KF|2, KF|3, KF|4, KF|5, [0x40] KF|6, KF|7, KF|8, KF|9, KF|10, Num, Scroll, '7', [0x48] '8', '9', '-', '4', '5', '6', '+', '1', [0x50] '2', '3', '0', '.', No, No, No, KF|11, [0x58] KF|12, No, No, No, No, No, No, No, [0x60] No, No, No, No, No, No, No, No, [0x68] No, No, No, No, No, No, No, No, [0x70] No, No, No, No, No, No, No, No, [0x78] No, View, No, Up, No, No, No, No, }; Rune kbtabshift[Nscan] = { [0x00] No, 0x1b, '!', '@', '#', '$', '%', '^', [0x08] '&', '*', '(', ')', '_', '+', '\b', '\t', [0x10] 'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', [0x18] 'O', 'P', '{', '}', '\n', Ctrl, 'A', 'S', [0x20] 'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', [0x28] '"', '~', Shift, '|', 'Z', 'X', 'C', 'V', [0x30] 'B', 'N', 'M', '<', '>', '?', Shift, '*', [0x38] Latin, ' ', Ctrl, KF|1, KF|2, KF|3, KF|4, KF|5, [0x40] KF|6, KF|7, KF|8, KF|9, KF|10, Num, Scroll, '7', [0x48] '8', '9', '-', '4', '5', '6', '+', '1', [0x50] '2', '3', '0', '.', No, No, No, KF|11, [0x58] KF|12, No, No, No, No, No, No, No, [0x60] No, No, No, No, No, No, No, No, [0x68] No, No, No, No, No, No, No, No, [0x70] No, No, No, No, No, No, No, No, [0x78] No, Up, No, Up, No, No, No, No, }; Rune kbtabesc1[Nscan] = { [0x00] No, No, No, No, No, No, No, No, [0x08] No, No, No, No, No, No, No, No, [0x10] No, No, No, No, No, No, No, No, [0x18] No, No, No, No, '\n', Ctrl, No, No, [0x20] No, No, No, No, No, No, No, No, [0x28] No, No, Shift, No, No, No, No, No, [0x30] No, No, No, No, No, '/', No, Print, [0x38] Altgr, No, No, No, No, No, No, No, [0x40] No, No, No, No, No, No, Break, Home, [0x48] Up, Pgup, No, Left, No, Right, No, End, [0x50] Down, Pgdown, Ins, Del, No, No, No, No, [0x58] No, No, No, No, No, No, No, No, [0x60] No, No, No, No, No, No, No, No, [0x68] No, No, No, No, No, No, No, No, [0x70] No, No, No, No, No, No, No, No, [0x78] No, Up, No, No, No, No, No, No, }; Rune kbtabaltgr[Nscan] = { [0x00] No, No, No, No, No, No, No, No, [0x08] No, No, No, No, No, No, No, No, [0x10] No, No, No, No, No, No, No, No, [0x18] No, No, No, No, '\n', Ctrl, No, No, [0x20] No, No, No, No, No, No, No, No, [0x28] No, No, Shift, No, No, No, No, No, [0x30] No, No, No, No, No, '/', No, Print, [0x38] Altgr, No, No, No, No, No, No, No, [0x40] No, No, No, No, No, No, Break, Home, [0x48] Up, Pgup, No, Left, No, Right, No, End, [0x50] Down, Pgdown, Ins, Del, No, No, No, No, [0x58] No, No, No, No, No, No, No, No, [0x60] No, No, No, No, No, No, No, No, [0x68] No, No, No, No, No, No, No, No, [0x70] No, No, No, No, No, No, No, No, [0x78] No, Up, No, No, No, No, No, No, }; Rune kbtabctrl[Nscan] = { [0x00] No, '', '', '', '', '', '', '', [0x08] '', '', '', '', ' ', ' ', '\b', '\t', [0x10] '', '', '', '', '', '', '', '\t', [0x18] '', '', '', ' ', '\n', Ctrl, '', '', [0x20] '', '', '', '\b', '\n', ' ', ' ', '', [0x28] '', No, Shift, ' ', '', '', '', '', [0x30] '', '', ' ', ' ', '', '', Shift, '\n', [0x38] Latin, No, Ctrl, '', '', '', '', '', [0x40] '', '', ' ', ' ', '', '', '', '', [0x48] '', '', ' ', '', '', '', ' ', '', [0x50] '', '', '', '', No, No, No, '', [0x58] ' ', No, No, No, No, No, No, No, [0x60] No, No, No, No, No, No, No, No, [0x68] No, No, No, No, No, No, No, No, [0x70] No, No, No, No, No, No, No, No, [0x78] No, '', No, '\b', No, No, No, No, }; enum { /* controller command byte */ Cscs1= (1<<6), /* scan code set 1 */ Cauxdis= (1<<5), /* mouse disable */ Ckbddis= (1<<4), /* kbd disable */ Csf= (1<<2), /* system flag */ Cauxint= (1<<1), /* mouse interrupt enable */ Ckbdint= (1<<0), /* kbd interrupt enable */ }; int mouseshifted; void (*kbdmouse)(int); static Lock i8042lock; static uchar ccc; static void (*auxputc)(int, int); static int nokbd = 1; /* flag: no PS/2 keyboard */ /* * wait for output no longer busy */ static int outready(void) { int tries; for(tries = 0; (inb(Status) & Outbusy); tries++){ if(tries > 500) return -1; delay(2); } return 0; } /* * wait for input */ static int inready(void) { int tries; for(tries = 0; !(inb(Status) & Inready); tries++){ if(tries > 500) return -1; delay(2); } return 0; } /* * ask 8042 to enable the use of address bit 20 */ void i8042a20(void) { outready(); outb(Cmd, 0xD1); outready(); outb(Data, 0xDF); outready(); } /* * ask 8042 to reset the machine */ void i8042reset(void) { int i, x; if(nokbd) return; *((ushort*)KADDR(0x472)) = 0x1234; /* BIOS warm-boot flag */ /* * newer reset the machine command */ outready(); outb(Cmd, 0xFE); outready(); /* * Pulse it by hand (old somewhat reliable) */ x = 0xDF; for(i = 0; i < 5; i++){ x ^= 1; outready(); outb(Cmd, 0xD1); outready(); outb(Data, x); /* toggle reset */ delay(100); } } int i8042auxcmd(int cmd) { unsigned int c; int tries; static int badkbd; if(badkbd) return -1; c = 0; tries = 0; ilock(&i8042lock); do{ if(tries++ > 2) break; if(outready() < 0) break; outb(Cmd, 0xD4); if(outready() < 0) break; outb(Data, cmd); if(outready() < 0) break; if(inready() < 0) break; c = inb(Data); } while(c == 0xFE || c == 0); iunlock(&i8042lock); if(c != 0xFA){ print("i8042: %2.2ux returned to the %2.2ux command\n", c, cmd); badkbd = 1; /* don't keep trying; there might not be one */ return -1; } return 0; } int i8042auxcmds(uchar *cmd, int ncmd) { int i; ilock(&i8042lock); for(i=0; i<ncmd; i++){ if(outready() < 0) break; outb(Cmd, 0xD4); if(outready() < 0) break; outb(Data, cmd[i]); } iunlock(&i8042lock); return i; } typedef struct Kbscan Kbscan; struct Kbscan { int esc1; int esc2; int alt; int altgr; int caps; int ctl; int num; int shift; int collecting; int nk; Rune kc[5]; int buttons; }; Kbscan kbscans[Nscans]; /* kernel and external scan code state */ static int kdebug; /* * set keyboard's leds for lock states (scroll, numeric, caps). * * at least one keyboard (from Qtronics) also sets its numeric-lock * behaviour to match the led state, though it has no numeric keypad, * and some BIOSes bring the system up with numeric-lock set and no * setting to change that. this combination steals the keys for these * characters and makes it impossible to generate them: uiolkjm&*(). * thus we'd like to be able to force the numeric-lock led (and behaviour) off. */ static void setleds(Kbscan *kbscan) { int leds; if(nokbd || kbscan != &kbscans[Int]) return; leds = 0; if(kbscan->num) leds |= 1<<1; if(0 && kbscan->caps) /* we don't implement caps lock */ leds |= 1<<2; ilock(&i8042lock); outready(); outb(Data, 0xed); /* `reset keyboard lock states' */ if(inready() == 0) inb(Data); outready(); outb(Data, leds); if(inready() == 0) inb(Data); outready(); iunlock(&i8042lock); } /* * Scan code processing */ void kbdputsc(int c, int external) { int i, keyup; Kbscan *kbscan; if(external) kbscan = &kbscans[Ext]; else kbscan = &kbscans[Int]; if(kdebug) print("sc %x ms %d\n", c, mouseshifted); /* * e0's is the first of a 2 character sequence, e1 the first * of a 3 character sequence (on the safari) */ if(c == 0xe0){ kbscan->esc1 = 1; return; } else if(c == 0xe1){ kbscan->esc2 = 2; return; } keyup = c & 0x80; c &= 0x7f; if(c > sizeof kbtab){ c |= keyup; if(c != 0xFF) /* these come fairly often: CAPSLOCK U Y */ print("unknown key %ux\n", c); return; } if(kbscan->esc1){ c = kbtabesc1[c]; kbscan->esc1 = 0; } else if(kbscan->esc2){ kbscan->esc2--; return; } else if(kbscan->shift) c = kbtabshift[c]; else if(kbscan->altgr) c = kbtabaltgr[c]; else if(kbscan->ctl) c = kbtabctrl[c]; else c = kbtab[c]; if(kbscan->caps && c<='z' && c>='a') c += 'A' - 'a'; /* * keyup only important for shifts */ if(keyup){ switch(c){ case Latin: kbscan->alt = 0; break; case Shift: kbscan->shift = 0; mouseshifted = 0; if(kdebug) print("shiftclr\n"); break; case Ctrl: kbscan->ctl = 0; break; case Altgr: kbscan->altgr = 0; break; case Kmouse|1: case Kmouse|2: case Kmouse|3: case Kmouse|4: case Kmouse|5: kbscan->buttons &= ~(1<<(c-Kmouse-1)); if(kbdmouse) kbdmouse(kbscan->buttons); break; } return; } /* * normal character */ if(!(c & (Spec|KF))){ if(kbscan->ctl) if(kbscan->alt && c == Del) exit(0); if(!kbscan->collecting){ kbdputc(kbdq, c); return; } kbscan->kc[kbscan->nk++] = c; c = latin1(kbscan->kc, kbscan->nk); if(c < -1) /* need more keystrokes */ return; if(c != -1) /* valid sequence */ kbdputc(kbdq, c); else /* dump characters */ for(i=0; i<kbscan->nk; i++) kbdputc(kbdq, kbscan->kc[i]); kbscan->nk = 0; kbscan->collecting = 0; return; } else { switch(c){ case Caps: