#include "u.h" #include "../port/lib.h" #include "mem.h" #include "dat.h" #include "fns.h" #include "io.h" #include "../port/error.h" #include #include #include "screen.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) */ CTdata= 0x0, /* chips & Technologies ps2 data port */ CTstatus= 0x1, /* chips & Technologies ps2 status port */ Enable= 1<<7, Clear= 1<<6, Error= 1<<5, Intenable= 1<<4, Reset= 1<<3, Tready= 1<<2, Rready= 1<<1, Idle= 1<<0, Spec= 0x80, PF= Spec|0x20, /* num pad function key */ View= Spec|0x00, /* view (shift window up) */ KF= Spec|0x40, /* function key */ Shift= Spec|0x60, Break= Spec|0x61, Ctrl= Spec|0x62, Latin= Spec|0x63, Caps= Spec|0x64, Num= Spec|0x65, Middle= Spec|0x66, No= 0x00, /* peter */ Home= KF|13, Up= KF|14, Pgup= KF|15, Print= KF|16, Left= View, Right= View, End= '\r', Down= View, Pgdown= View, Ins= KF|20, Del= 0x7F, Rbutton=4, Mbutton=2, Lbutton=1, }; uchar kbtab[] = { [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, KF|12, '7', [0x48] '8', '9', '-', '4', '5', '6', '+', '1', [0x50] '2', '3', '0', '.', Del, No, No, KF|11, [0x58] KF|12, No, No, No, No, No, No, No, }; uchar kbtabshift[] = { [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, KF|12, '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, }; uchar kbtabesc1[] = { [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] Latin, 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, }; /* * keyboard input q */ KIOQ kbdq; static int keybuttons; static uchar ccc; static int shift; ulong ctport; enum { /* controller command byte */ Cscs1= (1<<6), /* scan code set 1 */ Cmousedis= (1<<5), /* mouse disable */ Ckbddis= (1<<4), /* kbd disable */ Csf= (1<<2), /* system flag */ Cmouseint= (1<<1), /* mouse interrupt enable */ Ckbdint= (1<<0), /* kbd interrupt enable */ }; static void kbdintr(Ureg*, void*); static void ctps2intr(Ureg*, void*); static int ps2mouseputc(IOQ*, int); /* * 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; } /* * send a command to the mouse */ static int mousecmd(int cmd) { unsigned int c; int tries; c = 0; tries = 0; 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); if(c != 0xFA){ kprint("mouse returns %2.2ux to the %2.2ux command\n", c, cmd); return -1; } 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) { ushort *s = (ushort*)(KZERO|0x472); int i, x; *s = 0x1234; /* BIOS warm-boot flag */ /* * this works for dhog */ outready(); outb(Cmd, 0xFE); /* pulse reset line (means resend on AT&T machines) */ 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); } } void kbdinit(void) { int c; setvec(Kbdvec, kbdintr, 0); /* wait for a quiescent controller */ while((c = inb(Status)) & (Outbusy | Inready)) if(c & Inready) inb(Data); /* get current controller command byte */ outb(Cmd, 0x20); if(inready() < 0){ print("kbdinit: can't read ccc\n"); ccc = 0; } else ccc = inb(Data); /* enable kbd xfers and interrupts */ ccc &= ~Ckbddis; ccc |= Csf | Ckbdint | Cscs1; if(outready() < 0) print("kbd init failed\n"); outb(Cmd, 0x60); if(outready() < 0) print("kbd init failed\n"); outb(Data, ccc); outready(); } /* * setup a serial mouse */ static void serialmouse(int port, char *type, int setspeed) { if(mousetype) error(Emouseset); if(port >= 2 || port < 0) error(Ebadarg); /* set up /dev/eia0 as the mouse */ uartspecial(port, 0, &mouseq, setspeed ? 1200 : 0); if(type && *type == 'M') mouseq.putc = m3mouseputc; mousetype = Mouseserial; } static void nop(void){}; /* * look for a chips & technologies 82c710 ps2 mouse on a TI travelmate */ static int ct82c710(void) { int c; /* on non-C&T 2fa and 3fa are input only ports */ /* get chips attention */ outb(0x2fa, 0x55); nop(); nop(); outb(0x3fa, ~0x55); nop(); nop(); outb(0x3fa, 0x36); nop(); nop(); /* tell it where its config register should be */ outb(0x3fa, 0x390>>2); nop(); nop(); outb(0x2fa, ~(0x390>>2)); nop(); nop(); /* see if this is really a 710 */ outb(0x390, 0xf); nop(); nop(); if(inb(0x391) != (0x390>>2)) return -1; /* get data port address */ outb(0x390, 0xd); nop(); nop(); c = inb(0x391); if(c == 0 || c == 0xff) return -1; ctport = c<<2; /* turn off config mode */ outb(0x390, 0xf); nop(); nop(); outb(0x391, 0xf); setvec(Mousevec, ctps2intr, 0); /* enable for interrupts */ c = inb(ctport + CTstatus); c &= ~(Clear|Reset); c |= Enable|Intenable; outb(ctport + CTstatus, c); mousetype = MousePS2; return 0; } /* * set up a ps2 mouse */ static void ps2mouse(void) { int x; if(mousetype) error(Emouseset); if(ct82c710() == 0) return; /* enable kbd/mouse xfers and interrupts */ setvec(Mousevec, kbdintr, 0); x = splhi(); ccc &= ~Cmousedis; ccc |= Cmouseint; if(outready() < 0) print("mouse init failed\n"); outb(Cmd, 0x60); if(outready() < 0) print("mouse init failed\n"); outb(Data, ccc); if(outready() < 0) print("mouse init failed\n"); outb(Cmd, 0xA8); if(outready() < 0) print("mouse init failed\n"); /* make mouse streaming, enabled */ mousecmd(0xEA); mousecmd(0xF4); /* set high resolution */ mousecmd(0xE8); mousecmd(0x03); /* set high resolution finger point mouse */ mousecmd(0x5A); mousecmd(0x37); mousecmd(0x5A); mousecmd(0x24); splx(x); mousetype = MousePS2; } /* * ps/2 mouse message is three bytes * * byte 0 - 0 0 SDY SDX 1 M R L * byte 1 - DX * byte 2 - DY * * shift & left button is the same as middle button */ static int ps2mouseputc(IOQ *q, int c) { static short msg[3]; static int nb; static uchar b[] = {0, 1, 4, 5, 2, 3, 6, 7, 0, 1, 2, 5, 2, 3, 6, 7 }; int buttons, dx, dy; USED(q); /* not */ /* * check byte 0 for consistency */ if(nb==0 && (c&0xc8)!=0x08) return 0; msg[nb] = c; if(++nb == 3){ nb = 0; if(msg[0] & 0x10) msg[1] |= 0xFF00; if(msg[0] & 0x20) msg[2] |= 0xFF00; buttons = b[(msg[0]&7) | (shift ? 8 : 0)] | keybuttons; dx = msg[1]; dy = -msg[2]; mousetrack(buttons, dx, dy); } return 0; } /* * set/change mouse configuration */ void mousectl(char *arg) { int m, n, x; char *field[10]; n = getfields(arg, field, 10, " \t\n"); if(strncmp(field[0], "serial", 6) == 0){ switch(n){ case 1: serialmouse(atoi(field[0]+6), 0, 1); break; case 2: serialmouse(atoi(field[1]), 0, 0); break; case 3: default: serialmouse(atoi(field[1]), field[2], 0); break; } } else if(strcmp(field[0], "ps2") == 0){ ps2mouse(); } else if(strcmp(field[0], "accelerated") == 0){ switch(mousetype){ case MousePS2: x = splhi(); mousecmd(0xE7); splx(x); break; } } else if(strcmp(field[0], "linear") == 0){ switch(mousetype){ case MousePS2: x = splhi(); mousecmd(0xE6); splx(x); break; } } else if(strcmp(field[0], "res") == 0){ switch(n){ default: n = 0x02; m = 0x23; break; case 2: n = atoi(field[1])&0x3; m = 0x7; break; case 3: n = atoi(field[1])&0x3; m = atoi(field[2])&0x7; break; } switch(mousetype){ case MousePS2: x = splhi(); mousecmd(0xE8); mousecmd(n); mousecmd(0x5A); mousecmd(0x30|m); mousecmd(0x5A); mousecmd(0x20|(m>>1)); splx(x); break; } } else if(strcmp(field[0], "swap") == 0) mouseswap ^= 1; } /* * keyboard interrupt */ void kbdintr(Ureg *ur, void *a) { int s, c, i; static int esc1, esc2; static int caps; static int ctl; static int num; static int collecting, nk; static int alt; static uchar kc[5]; int keyup; USED(ur, a); /* * get status */ s = inb(Status); if(!(s&Inready)) return; /* * get the character */ c = inb(Data); /* * if it's the mouse... */ if(s & Minready){ ps2mouseputc(&mouseq, c); return; } /* * e0's is the first of a 2 character sequence */ if(c == 0xe0){ esc1 = 1; return; } else if(c == 0xe1){ esc2 = 2; return; } keyup = c&0x80; c &= 0x7f; if(c > sizeof kbtab){ print("unknown key %ux\n", c|keyup); return; } if(esc1){ c = kbtabesc1[c]; esc1 = 0; } else if(esc2){ esc2--; return; } else if(shift) c = kbtabshift[c]; else c = kbtab[c]; if(caps && c<='z' && c>='a') c += 'A' - 'a'; /* * keyup only important for shifts */ if(keyup){ switch(c){ case Latin: alt = 0; break; case Shift: mouseshifted = shift = 0; break; case Ctrl: ctl = 0; break; } return; } /* * normal character */ if(!(c & Spec)){ if(ctl){ if(alt && c == Del) exit(0); c &= 0x1f; } if(!collecting){ kbdputc(&kbdq, c); return; } kc[nk++] = c; c = latin1(kc, nk); if(c < -1) /* need more keystrokes */ return; if(c != -1) /* valid sequence */ kbdputc(&kbdq, c); else /* dump characters */ for(i=0; i