/* $NetBSD: kbd.c,v 1.32 1998/03/08 19:59:15 is Exp $ */ /* * Copyright (c) 1982, 1986, 1990 The Regents of the University of California. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * kbd.c */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef DRACO #include #endif #include #include #include #include #include #include #include "kbd.h" #include #include struct kbd_softc { int k_event_mode; /* if true, collect events, else pass to ite */ struct evvar k_events; /* event queue state */ #ifdef DRACO u_char k_rlprfx; /* MF-II rel. prefix has been seen */ u_char k_mf2; #endif }; struct kbd_softc kbd_softc; int kbdmatch __P((struct device *, struct cfdata *, void *)); void kbdattach __P((struct device *, struct device *, void *)); void kbdintr __P((int)); void kbdstuffchar __P((u_char)); int drkbdgetc __P((void)); int drkbdrputc __P((int)); int drkbdputc __P((int)); int drkbdputc2 __P((int, int)); int drkbdwaitfor __P((int)); struct cfattach kbd_ca = { sizeof(struct device), kbdmatch, kbdattach }; /*ARGSUSED*/ int kbdmatch(pdp, cfp, auxp) struct device *pdp; struct cfdata *cfp; void *auxp; { if (matchname((char *)auxp, "kbd")) return(1); return(0); } /*ARGSUSED*/ void kbdattach(pdp, dp, auxp) struct device *pdp, *dp; void *auxp; { #ifdef DRACO kbdenable(); if (kbd_softc.k_mf2) printf(": QuickLogic type MF-II\n"); else printf(": CIA A type Amiga\n"); #else printf(": CIA A type Amiga\n"); #endif } /* definitions for amiga keyboard encoding. */ #define KEY_CODE(c) ((c) & 0x7f) #define KEY_UP(c) ((c) & 0x80) #define DATLO single_inst_bclr_b(draco_ioct->io_control, DRCNTRL_KBDDATOUT) #define DATHI single_inst_bset_b(draco_ioct->io_control, DRCNTRL_KBDDATOUT) #define CLKLO single_inst_bclr_b(draco_ioct->io_control, DRCNTRL_KBDCLKOUT) #define CLKHI single_inst_bset_b(draco_ioct->io_control, DRCNTRL_KBDCLKOUT) void kbdenable() { static int kbd_inited = 0; int s; #ifdef DRACO int id; #endif /* * collides with external ints from SCSI, watch out for this when * enabling/disabling interrupts there !! */ s = splhigh(); /* don't lower; might be called from early ddb */ if (kbd_inited) { splx(s); return; } kbd_inited = 1; #ifdef DRACO if (is_draco()) { CLKLO; delay(5000); draco_ioct->io_kbdrst = 0; if (drkbdputc(0xf2)) goto LnoMFII; id = drkbdgetc() << 8; id |= drkbdgetc(); if (id != 0xab83) goto LnoMFII; if (drkbdputc2(0xf0, 3)) /* mode 3 */ goto LnoMFII; if (drkbdputc(0xf8)) /* make/break, no typematic */ goto LnoMFII; if (drkbdputc(0xf4)) /* enable */ goto LnoMFII; kbd_softc.k_mf2 = 1; draco_ioct->io_control &= ~DRCNTRL_KBDINTENA; ciaa.icr = CIA_ICR_SP; /* CIA SP interrupt disable */ ciaa.cra &= ~(1<<6); /* serial line == input */ splx(s); return; LnoMFII: kbd_softc.k_mf2 = 0; *draco_intena |= DRIRQ_INT2; ciaa.icr = CIA_ICR_IR_SC | CIA_ICR_SP; /* SP interrupt enable */ ciaa.cra &= ~(1<<6); /* serial line == input */ splx(s); return; } else { #endif custom.intena = INTF_SETCLR | INTF_PORTS; ciaa.icr = CIA_ICR_IR_SC | CIA_ICR_SP; /* SP interrupt enable */ ciaa.cra &= ~(1<<6); /* serial line == input */ #ifdef DRACO } #endif kbd_softc.k_event_mode = 0; kbd_softc.k_events.ev_io = 0; splx(s); } #ifdef DRACO /* * call this with kbd interupt blocked */ int drkbdgetc() { u_int8_t in; while ((draco_ioct->io_status & DRSTAT_KBDRECV) == 0); in = draco_ioct->io_kbddata; draco_ioct->io_kbdrst = 0; return in; } #define WAIT0 if (drkbdwaitfor(0)) goto Ltimeout #define WAIT1 if (drkbdwaitfor(DRSTAT_KBDCLKIN)) goto Ltimeout int drkbdwaitfor(bit) int bit; { int i; i = 60000; /* about 50 ms max */ do { if ((draco_ioct->io_status & DRSTAT_KBDCLKIN) == bit) return 0; } while (--i >= 0); return 1; } /* * Output a raw byte to the keyboard (+ parity and stop bit). * return 0 on success, 1 on timeout. */ int drkbdrputc(c) u_int8_t c; { u_int8_t parity; int bitcnt; DATLO; CLKHI; WAIT1; parity = 0; for (bitcnt=7; bitcnt >= 0; bitcnt--) { WAIT0; if (c & 1) { DATHI; } else { ++parity; DATLO; } c >>= 1; WAIT1; } WAIT0; /* parity bit */ if (parity & 1) { DATLO; } else { DATHI; } WAIT1; /* stop bit */ WAIT0; DATHI; WAIT1; WAIT0; /* XXX should check the ack bit here... */ WAIT1; draco_ioct->io_kbdrst = 0; return 0; Ltimeout: DATHI; draco_ioct->io_kbdrst = 0; return 1; } /* * Output one cooked byte to the keyboard, with wait for ACK or RESEND, * and retry if necessary. 0 == success, 1 == timeout */ int drkbdputc(c) u_int8_t c; { int rc; do { if (drkbdrputc(c)) return(-1); rc = drkbdgetc(); } while (rc == 0xfe); return (!(rc == 0xfa)); } /* * same for twobyte sequence */ int drkbdputc2(c1, c2) u_int8_t c1, c2; { int rc; do { do { if (drkbdrputc(c1)) return(-1); rc = drkbdgetc(); } while (rc == 0xfe); if (rc != 0xfa) return (-1); if (drkbdrputc(c2)) return(-1); rc = drkbdgetc(); } while (rc == 0xfe); return (!(rc == 0xfa)); } #endif int kbdopen(dev, flags, mode, p) dev_t dev; int flags, mode; struct proc *p; { kbdenable(); if (kbd_softc.k_events.ev_io) return EBUSY; kbd_softc.k_events.ev_io = p; ev_init(&kbd_softc.k_events); return (0); } int kbdclose(dev, flags, mode, p) dev_t dev; int flags, mode; struct proc *p; { /* Turn off event mode, dump the queue */ kbd_softc.k_event_mode = 0; ev_fini(&kbd_softc.k_events); kbd_softc.k_events.ev_io = NULL; return (0); } int kbdread(dev, uio, flags) dev_t dev; struct uio *uio; int flags; { return ev_read (&kbd_softc.k_events, uio, flags); } int kbdioctl(dev, cmd, data, flag, p) dev_t dev; u_long cmd; register caddr_t data; int flag; struct proc *p; { register struct kbd_softc *k = &kbd_softc; switch (cmd) { case KIOCTRANS: if (*(int *)data == TR_UNTRANS_EVENT) return 0; break; case KIOCGTRANS: /* Get translation mode */ *(int *)data = TR_UNTRANS_EVENT; return 0; case KIOCSDIRECT: k->k_event_mode = *(int *)data; return 0; case FIONBIO: /* we will remove this someday (soon???) */ return 0; case FIOASYNC: k->k_events.ev_async = *(int *)data != 0; return 0; case TIOCSPGRP: if (*(int *)data != k->k_events.ev_io->p_pgid) return EPERM; return 0; default: return ENOTTY; } /* We identified the ioctl, but we do not handle it. */ return EOPNOTSUPP; /* misuse, but what the heck */ } int kbdpoll(dev, events, p) dev_t dev; int events; struct proc *p; { return ev_poll (&kbd_softc.k_events, events, p); } void kbdintr(mask) int mask; { u_char c; #ifdef KBDRESET static int reset_warn; #endif /* * now only invoked from generic CIA interrupt handler if there *is* * a keyboard interrupt pending */ c = ~ciaa.sdr; /* keyboard data is inverted */ /* ack */ ciaa.cra |= (1 << 6); /* serial line output */ #ifdef KBDRESET if (reset_warn && c == 0xf0) { #ifdef DEBUG printf ("kbdintr: !!!! Reset Warning !!!!\n"); #endif bootsync(); reset_warn = 0; DELAY(30000000); } #endif /* wait 200 microseconds (for bloody Cherry keyboards..) */ DELAY(2000); /* fudge delay a bit for some keyboards */ ciaa.cra &= ~(1 << 6); /* process the character */ c = (c >> 1) | (c << 7); /* rotate right once */ #ifdef KBDRESET if (c == 0x78) { #ifdef DEBUG printf ("kbdintr: Reset Warning started\n"); #endif ++reset_warn; return; } #endif kbdstuffchar(c); } #ifdef DRACO /* maps MF-II keycodes to Amiga keycodes */ const u_char drkbdtab[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x50, 0x45, 0xff, 0xff, 0xff, 0xff, 0x42, 0x00, 0x51, 0xff, 0x64, 0x60, 0x30, 0x63, 0x10, 0x01, 0x52, 0xff, 0x66, 0x31, 0x21, 0x20, 0x11, 0x02, 0x53, 0xff, 0x33, 0x32, 0x22, 0x12, 0x04, 0x03, 0x54, 0xff, 0x40, 0x34, 0x23, 0x14, 0x13, 0x05, 0x55, 0xff, 0x36, 0x35, 0x25, 0x24, 0x15, 0x06, 0x56, 0xff, 0x67, 0x37, 0x26, 0x16, 0x07, 0x08, 0x57, /* --- */ 0xff, 0x38, 0x27, 0x17, 0x18, 0x0a, 0x09, 0x58, 0xff, 0x39, 0x3a, 0x28, 0x29, 0x19, 0x0b, 0x59, 0xff, 0xff, 0x2a, 0x2b, 0x1a, 0x0c, 0x4b, 0xff, 0x65, 0x61, 0x44, 0x1b, 0xff, 0xff, 0x6f, 0xff, 0x4d, 0x4f, 0xff, 0x4c, 0x0d, 0xff, 0x41, 0x46, 0xff, 0x1d, 0x4e, 0x2d, 0x3d, 0x4a, 0x5f, 0x62, 0x0f, 0x3c, 0x1e, 0x2e, 0x2f, 0x3e, 0x5a, 0x5b, 0xff, 0x43, 0x1f, 0xff, 0x5e, 0x3f, 0x5c, 0xff, /* --- */ 0xff, 0xff, 0xff, 0xff, 0x5d }; #endif int kbdgetcn () { int s; u_char ints, mask, c, in; #ifdef DRACO if (is_draco() && kbd_softc.k_mf2) { do { c = 0; s = spltty (); while ((draco_ioct->io_status & DRSTAT_KBDRECV) == 0); in = draco_ioct->io_kbddata; draco_ioct->io_kbdrst = 0; if (in == 0xF0) { /* release prefix */ c = 0x80; while ((draco_ioct->io_status & DRSTAT_KBDRECV) == 0); in = draco_ioct->io_kbddata; draco_ioct->io_kbdrst = 0; } splx(s); #ifdef DRACORAWKEYDEBUG printf("<%02x>", in); #endif c |= in>=sizeof(drkbdtab) ? 0xff : drkbdtab[in]; } while (c == 0xff); return (c); } #endif s = spltty(); for (ints = 0; ! ((mask = ciaa.icr) & CIA_ICR_SP); ints |= mask) ; in = ciaa.sdr; c = ~in; /* ack */ ciaa.cra |= (1 << 6); /* serial line output */ ciaa.sdr = 0xff; /* ack */ /* wait 200 microseconds */ DELAY(2000); /* XXXX only works as long as DELAY doesn't * use a timer and waits.. */ ciaa.cra &= ~(1 << 6); ciaa.sdr = in; splx (s); c = (c >> 1) | (c << 7); /* take care that no CIA-interrupts are lost */ if (ints) dispatch_cia_ints (0, ints); return c; } void kbdstuffchar(c) u_char c; { struct firm_event *fe; struct kbd_softc *k = &kbd_softc; int put; /* * If not in event mode, deliver straight to ite to process * key stroke */ if (! k->k_event_mode) { ite_filter (c, ITEFILT_TTY); return; } /* * Keyboard is generating events. Turn this keystroke into an * event and put it in the queue. If the queue is full, the * keystroke is lost (sorry!). */ put = k->k_events.ev_put; fe = &k->k_events.ev_q[put]; put = (put + 1) % EV_QSIZE; if (put == k->k_events.ev_get) { log(LOG_WARNING, "keyboard event queue overflow\n"); /* ??? */ return; } fe->id = KEY_CODE(c); fe->value = KEY_UP(c) ? VKEY_UP : VKEY_DOWN; fe->time = time; k->k_events.ev_put = put; EV_WAKEUP(&k->k_events); } #ifdef DRACO void drkbdintr() { u_char in; struct kbd_softc *k = &kbd_softc; in = draco_ioct->io_kbddata; draco_ioct->io_kbdrst = 0; if (in == 0xF0) k->k_rlprfx = 0x80; else { kbdstuffchar(in>=sizeof(drkbdtab) ? 0xff : drkbdtab[in] | k->k_rlprfx); k->k_rlprfx = 0; } } #endif