/* * Copyright (c) 1992, 1995 Hellmuth Michaelis and Joerg Wunsch. * * Copyright (c) 1992, 1993 Brian Dunford-Shore and Scott Turner. * * Copyright (c) 1993 Charles Hannum. * * All rights reserved. * * Parts of this code regarding the NetBSD interface were written * by Charles Hannum. * * This code is derived from software contributed to Berkeley by * William Jolitz and Don Ahn. * * 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 * Hellmuth Michaelis, Brian Dunford-Shore, Joerg Wunsch, Scott Turner * and Charles Hannum. * 4. The name authors may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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 AUTHORS 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. * * * @(#)pcvt_drv.c, 3.20, Last Edit-Date: [Sun Apr 2 19:09:19 1995] * */ /*---------------------------------------------------------------------------* * * pcvt_drv.c VT220 Driver Main Module / OS - Interface * --------------------------------------------------------- * -hm ------------ Release 3.00 -------------- * -hm integrating NetBSD-current patches * -hm adding ttrstrt() proto for NetBSD 0.9 * -hm kernel/console output cursor positioning fixed * -hm kernel/console output switches optional to screen 0 * -hm FreeBSD 1.1 porting * -hm the NetBSD 0.9 compiler detected a nondeclared var which was * NOT detected by neither the NetBSD-current nor FreeBSD 1.x! * -hm including Michael's keyboard fifo code * -hm Joergs patch for FreeBSD tty-malloc code * -hm adjustments for NetBSD-current * -hm FreeBSD bugfix from Joerg re timeout/untimeout casts * -jw including Thomas Gellekum's FreeBSD 1.1.5 patch * -hm adjusting #if's for NetBSD-current * -hm applying Joerg's patch for FreeBSD 2.0 * -hm patch from Onno & Martin for NetBSD-current (post 1.0) * -hm some adjustments for NetBSD 1.0 * -hm NetBSD PR #400: screen size report for new session * -hm patch from Rafael Boni/Lon Willett for NetBSD-current * -hm bell patch from Thomas Eberhardt for NetBSD * -hm multiple X server bugfixes from Lon Willett * -hm patch from joerg - pcdevtotty for FreeBSD pre-2.1 * -hm delay patch from Martin Husemann after port-i386 ml-discussion * -jw add some code to provide more FreeBSD pre-2.1 support * *---------------------------------------------------------------------------*/ #include "vt.h" #if NVT > 0 #define EXTERN /* allocate mem */ #include "pcvt_hdr.h" /* global include */ #if PCVT_NETBSD extern u_short *Crtat; #endif /* PCVT_NETBSD */ unsigned __debug = 0; /*0xffe */; static __color; static nrow; static void vgapelinit(void); /* read initial VGA DAC palette */ #if defined XSERVER && !PCVT_USL_VT_COMPAT static int pcvt_xmode_set(int on, struct proc *p); /* initialize for X mode */ #endif /* XSERVER && !PCVT_USL_VT_COMPAT */ #if PCVT_FREEBSD > 205 static struct kern_devconf kdc_vt[]; static inline void vt_registerdev(struct isa_device *id, const char *name); static char vt_description[]; #define VT_DESCR_LEN 40 #endif /* PCVT_FREEBSD > 205 */ #if PCVT_NETBSD > 100 /* NetBSD-current Feb 20 1995 */ int pcprobe(struct device *parent, void *match, void *aux) #else #if PCVT_NETBSD > 9 int pcprobe(struct device *parent, struct device *self, void *aux) #else int pcprobe(struct isa_device *dev) #endif /* PCVT_NETBSD > 9 */ #endif /* PCVT_NETBSD > 100 */ { kbd_code_init(); #if PCVT_NETBSD > 9 ((struct isa_attach_args *)aux)->ia_iosize = 16; return 1; #else #if PCVT_NETBSD || PCVT_FREEBSD return (16); #else return 1; #endif /* PCVT_NETBSD || PCVT_FREEBSD */ #endif /* PCVT_NETBSD > 9 */ } #if PCVT_NETBSD > 9 void pcattach(struct device *parent, struct device *self, void *aux) { struct isa_attach_args *ia = aux; static struct intrhand vthand; #else int pcattach(struct isa_device *dev) { #endif /* PCVT_NETBSD > 9 */ int i; vt_coldmalloc(); /* allocate memory for screens */ #if PCVT_NETBSD || PCVT_FREEBSD #if PCVT_NETBSD > 9 printf(": "); #else printf("vt%d: ", dev->id_unit); #endif /* PCVT_NETBSD > 9 */ switch(adaptor_type) { case MDA_ADAPTOR: printf("mda"); break; case CGA_ADAPTOR: printf("cga"); break; case EGA_ADAPTOR: printf("ega"); break; case VGA_ADAPTOR: printf("%s, ", (char *)vga_string(vga_type)); if(can_do_132col) printf("80/132 col"); else printf("80 col"); vgapelinit(); break; default: printf("unknown"); break; } if(color == 0) printf(", mono"); else printf(", color"); printf(", %d scr, ", totalscreens); switch(keyboard_type) { case KB_AT: printf("at-"); break; case KB_MFII: printf("mf2-"); break; default: printf("unknown "); break; } printf("kbd, [R%s]\n", PCVT_REL); #if PCVT_NETBSD || (PCVT_FREEBSD > 110 && PCVT_FREEBSD < 200) for(i = 0; i < totalscreens; i++) { #if PCVT_NETBSD pc_tty[i] = ttymalloc(); vs[i].vs_tty = pc_tty[i]; #else /* !PCVT_NETBSD */ pccons[i] = ttymalloc(pccons[i]); vs[i].vs_tty = pccons[i]; #endif /* PCVT_NETBSD */ } #if PCVT_EMU_MOUSE #if PCVT_NETBSD pc_tty[totalscreens] = ttymalloc(); /* the mouse emulator tty */ #else /* !PCVT_NETBSD */ /* the mouse emulator tty */ pc_tty[totalscreens] = ttymalloc(pccons[totalscreens]); #endif /* PCVT_NETBSD */ #endif /* PCVT_EMU_MOUSE */ #if PCVT_NETBSD pcconsp = pc_tty[0]; #else /* !PCVT_NETBSD */ pcconsp = pccons[0]; #endif /* PCVT_NETBSD */ #endif /* #if PCVT_NETBSD || (PCVT_FREEBSD > 110 && PCVT_FREEBSD < 200) */ #else /* !PCVT_NETBSD && !PCVT_FREEBSD*/ switch(adaptor_type) { case MDA_ADAPTOR: printf(" ", PCVT_REL); #endif /* PCVT_NETBSD || PCVT_FREEBSD */ #if !PCVT_NETBSD && !(PCVT_FREEBSD > 110 && PCVT_FREEBSD < 200) for(i = 0; i < totalscreens; i++) vs[i].vs_tty = &pccons[i]; #endif /* !PCVT_NETBSD && !(PCVT_FREEBSD > 110 && PCVT_FREEBSD < 200) */ async_update(UPDATE_START); /* start asynchronous updates */ #if PCVT_FREEBSD > 205 /* mark the device busy now if we are the console */ kdc_vt[dev->id_unit].kdc_state = pcvt_is_console? DC_IDLE: DC_BUSY; vt_registerdev(dev, (char *)vga_string(vga_type)); #endif /* PCVT_FREEBSD > 205 */ #if PCVT_NETBSD > 9 vthand.ih_fun = pcrint; vthand.ih_arg = 0; vthand.ih_level = IPL_TTY; #if (PCVT_NETBSD > 100) && defined(IST_EDGE) intr_establish(ia->ia_irq, IST_EDGE, &vthand); #else /* PCVT_NETBSD > 100 */ intr_establish(ia->ia_irq, &vthand); #endif /* PCVT_NETBSD > 100 */ #else /* PCVT_NETBSD > 9 */ return 1; #endif /* PCVT_NETBSD > 9 */ } /* had a look at the friedl driver */ #if !PCVT_NETBSD struct tty * get_pccons(Dev_t dev) { register int i = minor(dev); #if PCVT_EMU_MOUSE if(i == totalscreens) #if !(PCVT_FREEBSD > 110 && PCVT_FREEBSD < 200) return(&pccons[i]); #else return(pccons[i]); #endif /* !(PCVT_FREEBSD > 110 && PCVT_FREEBSD < 200) */ #endif /* PCVT_EMU_MOUSE */ if(i >= PCVT_NSCREENS) return(NULL); #if !(PCVT_FREEBSD > 110 && PCVT_FREEBSD < 200) return(&pccons[i]); #else return(pccons[i]); #endif } #else struct tty * get_pccons(Dev_t dev) { register int i = minor(dev); #if PCVT_EMU_MOUSE if(i == totalscreens) return(pc_tty[i]); #endif /* PCVT_EMU_MOUSE */ if(i >= PCVT_NSCREENS) return(NULL); return(pc_tty[i]); } #endif /* !PCVT_NETBSD */ /*---------------------------------------------------------------------------* * /dev/ttyc0, /dev/ttyc1, etc. *---------------------------------------------------------------------------*/ int pcopen(Dev_t dev, int flag, int mode, struct proc *p) { register struct tty *tp; register struct video_state *vsx; int s, retval; int winsz = 0; int i = minor(dev); #if PCVT_EMU_MOUSE if(i == totalscreens) vsx = 0; else #endif /* PCVT_EMU_MOUSE */ vsx = &vs[i]; if((tp = get_pccons(dev)) == NULL) return ENXIO; #if PCVT_EMU_MOUSE if(i == totalscreens) { if(mouse.opened == 0) mouse.buttons = mouse.extendedseen = mouse.breakseen = mouse.lastmove.tv_sec = 0; mouse.minor = i; mouse.opened++; } else #endif /* PCVT_EMU_MOUSE */ vsx->openf++; tp->t_oproc = pcstart; tp->t_param = pcparam; tp->t_dev = dev; if ((tp->t_state & TS_ISOPEN) == 0) { #if !(PCVT_FREEBSD > 114) tp->t_state |= TS_WOPEN; #endif /* !(PCVT_FREEBSD > 114) */ ttychars(tp); tp->t_iflag = TTYDEF_IFLAG; tp->t_oflag = TTYDEF_OFLAG; tp->t_cflag = TTYDEF_CFLAG; tp->t_lflag = TTYDEF_LFLAG; tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED; pcparam(tp, &tp->t_termios); ttsetwater(tp); } else if (tp->t_state & TS_XCLUDE && p->p_ucred->cr_uid != 0) return (EBUSY); tp->t_state |= TS_CARR_ON; tp->t_cflag |= CLOCAL; /* cannot be a modem (:-) */ if ((tp->t_state & TS_ISOPEN) == 0) /* is this a "cold" open ? */ winsz = 1; /* yes, set winsize later */ #if PCVT_NETBSD || (PCVT_FREEBSD >= 200) retval = ((*linesw[tp->t_line].l_open)(dev, tp)); #else retval = ((*linesw[tp->t_line].l_open)(dev, tp, flag)); #endif /* PCVT_NETBSD || (PCVT_FREEBSD >= 200) */ if(winsz == 1) { /* * The line discipline has clobbered t_winsize if TS_ISOPEN * was clear. (NetBSD PR #400 from Bill Sommerfeld) * We have to do this after calling the open routine, because * it does some other things in other/older *BSD releases -hm */ s = spltty(); tp->t_winsize.ws_col = vsx->maxcol; tp->t_winsize.ws_row = vsx->screen_rows; tp->t_winsize.ws_xpixel = (vsx->maxcol == 80)? 720: 1056; tp->t_winsize.ws_ypixel = 400; splx(s); } #if PCVT_FREEBSD > 205 if(retval == 0) { /* XXX currently, only one vt device is supported */ kdc_vt[0].kdc_state = DC_BUSY; } #endif return(retval); } int pcclose(Dev_t dev, int flag, int mode, struct proc *p) { register struct tty *tp; register struct video_state *vsx; int i = minor(dev); #if PCVT_EMU_MOUSE if(i == totalscreens) vsx = 0; else #endif /* PCVT_EMU_MOUSE */ vsx = &vs[i]; if((tp = get_pccons(dev)) == NULL) return ENXIO; (*linesw[tp->t_line].l_close)(tp, flag); ttyclose(tp); #if PCVT_EMU_MOUSE if(i == totalscreens) mouse.opened = 0; else #endif /* PCVT_EMU_MOUSE */ vsx->openf = 0; #if PCVT_USL_VT_COMPAT #if PCVT_EMU_MOUSE if(i == totalscreens) return (0); #endif /* PCVT_EMU_MOUSE */ reset_usl_modes(vsx); #endif /* PCVT_USL_VT_COMPAT */ #if PCVT_FREEBSD > 205 if(!pcvt_is_console) { /* XXX currently, only one vt device is supported */ kdc_vt[0].kdc_state = DC_IDLE; } #endif return(0); } int pcread(Dev_t dev, struct uio *uio, int flag) { register struct tty *tp; if((tp = get_pccons(dev)) == NULL) return ENXIO; return ((*linesw[tp->t_line].l_read)(tp, uio, flag)); } int pcwrite(Dev_t dev, struct uio *uio, int flag) { register struct tty *tp; if((tp = get_pccons(dev)) == NULL) return ENXIO; return ((*linesw[tp->t_line].l_write)(tp, uio, flag)); } int pcioctl(Dev_t dev, int cmd, caddr_t data, int flag, struct proc *p) { register error; register struct tty *tp; if((tp = get_pccons(dev)) == NULL) return(ENXIO); /* note that some ioctl's are global, e.g. KBSTPMAT: There is * only one keyboard and different repeat rates for instance between * sessions are a suspicious wish. If you really need this make the * appropriate variables arrays */ #if PCVT_EMU_MOUSE if(minor(dev) == totalscreens) { if((error = mouse_ioctl(dev, cmd, data)) >= 0) return error; goto do_standard; } #endif /* PCVT_EMU_MOUSE */ #ifdef XSERVER #if PCVT_USL_VT_COMPAT if((error = usl_vt_ioctl(dev, cmd, data, flag, p)) >= 0) return error; /* * just for compatibility: * XFree86 < 2.0 and SuperProbe still might use it * * NB: THIS IS A HACK! Do not use it unless you explicitly need. * Especially, since the vty is not put into process-controlled * mode (this would require the application to co-operate), any * attempts to switch vtys while this kind of X mode is active * may cause serious trouble. */ switch(cmd) { case CONSOLE_X_MODE_ON: { int i; if((error = usl_vt_ioctl(dev, KDENABIO, 0, flag, p)) > 0) return error; i = KD_GRAPHICS; if((error = usl_vt_ioctl(dev, KDSETMODE, (caddr_t)&i, flag, p)) > 0) return error; i = K_RAW; error = usl_vt_ioctl(dev, KDSKBMODE, (caddr_t)&i, flag, p); return error; } case CONSOLE_X_MODE_OFF: { int i; (void)usl_vt_ioctl(dev, KDDISABIO, 0, flag, p); i = KD_TEXT; (void)usl_vt_ioctl(dev, KDSETMODE, (caddr_t)&i, flag, p); i = K_XLATE; (void)usl_vt_ioctl(dev, KDSKBMODE, (caddr_t)&i, flag, p); return 0; } case CONSOLE_X_BELL: /* * If `data' is non-null, the first int value denotes * the pitch, the second a duration. Otherwise, behaves * like BEL. */ if (data) { #if PCVT_NETBSD sysbeep(((int *)data)[0], ((int *)data)[1] * hz / 1000); #else /* PCVT_NETBSD */ sysbeep(PCVT_SYSBEEPF / ((int *)data)[0], ((int *)data)[1] * hz / 3000); #endif /* PCVT_NETBSD */ } else { sysbeep(PCVT_SYSBEEPF / 1493, hz / 4); } return (0); default: /* fall through */ ; } #else /* PCVT_USL_VT_COMPAT */ switch(cmd) { case CONSOLE_X_MODE_ON: return pcvt_xmode_set(1, p); case CONSOLE_X_MODE_OFF: return pcvt_xmode_set(0, p); case CONSOLE_X_BELL: /* * If `data' is non-null, the first int value denotes * the pitch, the second a duration. Otherwise, behaves * like BEL. */ if (data) { #if PCVT_NETBSD sysbeep(((int *)data)[0], ((int *)data)[1] * hz / 1000); #else /* PCVT_NETBSD */ sysbeep(PCVT_SYSBEEPF / ((int *)data)[0], ((int *)data)[1] * hz / 3000); #endif /* PCVT_NETBSD */ } else { sysbeep(PCVT_SYSBEEPF / 1493, hz / 4); } return (0); default: /* fall through */ ; } #endif /* PCVT_USL_VT_COMPAT */ #endif /* XSERVER */ if((error = kbdioctl(dev,cmd,data,flag)) >= 0) return error; if((error = vgaioctl(dev,cmd,data,flag)) >= 0) return error; do_standard: #if PCVT_NETBSD > 9 || PCVT_FREEBSD >= 200 if((error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, data, flag, p)) >= 0) return (error); #else if((error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, data, flag)) >= 0) return(error); #endif /* PCVT_NETBSD > 9 || PCVT_FREEBSD >= 200 */ #if PCVT_NETBSD > 9 if((error = ttioctl(tp, cmd, data, flag, p)) >= 0) return (error); #else if((error = ttioctl(tp, cmd, data, flag)) >= 0) return (error); #endif /* PCVT_NETBSD > 9 */ return (ENOTTY); } int pcmmap(Dev_t dev, int offset, int nprot) { if (offset > 0x20000) return -1; return i386_btop((0xa0000 + offset)); } #if PCVT_FREEBSD > 205 struct tty * pcdevtotty(Dev_t dev) { return get_pccons(dev); } static char vt_descr[VT_DESCR_LEN] = "Graphics console: "; static struct kern_devconf kdc_vt[NVT] = { 0, 0, 0, /* filled in by dev_attach */ "vt", 0, { MDDT_ISA, 0, "tty" }, isa_generic_externalize, 0, 0, ISA_EXTERNALLEN, &kdc_isa0, /* parent */ 0, /* parentdata */ DC_UNCONFIGURED, /* until we know it better */ vt_descr }; static inline void vt_registerdev(struct isa_device *id, const char *name) { if(id->id_unit) kdc_vt[id->id_unit] = kdc_vt[0]; kdc_vt[id->id_unit].kdc_unit = id->id_unit; kdc_vt[id->id_unit].kdc_isa = id; /* XXX only vt0 currently allowed */ strncpy(vt_descr + sizeof("Graphics console: ") - 1, name, VT_DESCR_LEN - sizeof("Graphics console: ")); dev_attach(&kdc_vt[id->id_unit]); } #endif /* PCVT_FREEBSD > 205 */ /*---------------------------------------------------------------------------* * * handle a keyboard receive interrupt * * NOTE: the keyboard is multiplexed by means of "pcconsp" * between virtual screens. pcconsp - switching is done in * the vgapage() routine * *---------------------------------------------------------------------------*/ #if PCVT_KBD_FIFO u_char pcvt_kbd_fifo[PCVT_KBD_FIFO_SZ]; int pcvt_kbd_wptr = 0; int pcvt_kbd_rptr = 0; short pcvt_kbd_count= 0; static u_char pcvt_timeout_scheduled = 0; static void pcvt_timeout (void *arg) { u_char *cp; #if PCVT_SLOW_INTERRUPT int s; #endif pcvt_timeout_scheduled = 0; #if PCVT_SCREENSAVER pcvt_scrnsv_reset(); #endif /* PCVT_SCREENSAVER */ while (pcvt_kbd_count) { if (((cp = sgetc(1)) != 0) && (vs[current_video_screen].openf)) { #if PCVT_NULLCHARS if(*cp == '\0') { /* pass a NULL character */ (*linesw[pcconsp->t_line].l_rint)('\0', pcconsp); } /* XXX */ else #endif /* PCVT_NULLCHARS */ while (*cp) (*linesw[pcconsp->t_line].l_rint)(*cp++ & 0xff, pcconsp); } PCVT_DISABLE_INTR (); if (!pcvt_kbd_count) pcvt_timeout_scheduled = 0; PCVT_ENABLE_INTR (); } return; } #endif int pcrint(void) { #if PCVT_KBD_FIFO u_char dt; u_char ret = -1; # if PCVT_SLOW_INTERRUPT int s; # endif #else /* !PCVT_KBD_FIFO */ u_char *cp; #endif /* PCVT_KBD_FIFO */ #if PCVT_SCREENSAVER pcvt_scrnsv_reset(); #endif /* PCVT_SCREENSAVER */ #if PCVT_KBD_FIFO if (kbd_polling) { if(sgetc(1) == 0) return -1; else return 1; } while (inb(CONTROLLER_CTRL) & STATUS_OUTPBF) /* check 8042 buffer */ { ret = 1; /* got something */ PCVT_KBD_DELAY(); /* 7 us delay */ dt = inb(CONTROLLER_DATA); /* get it 8042 data */ if (pcvt_kbd_count >= PCVT_KBD_FIFO_SZ) /* fifo overflow ? */ { log (LOG_WARNING, "pcvt: keyboard buffer overflow\n"); } else { pcvt_kbd_fifo[pcvt_kbd_wptr++] = dt; /* data -> fifo */ PCVT_DISABLE_INTR (); /* XXX necessary ? */ pcvt_kbd_count++; /* update fifo count */ PCVT_ENABLE_INTR (); if (pcvt_kbd_wptr >= PCVT_KBD_FIFO_SZ) pcvt_kbd_wptr = 0; /* wraparound pointer */ } } if (ret == 1) /* got data from keyboard ? */ { if (!pcvt_timeout_scheduled) /* if not already active .. */ { PCVT_DISABLE_INTR (); pcvt_timeout_scheduled = 1; /* flag active */ timeout((TIMEOUT_FUNC_T)pcvt_timeout, (caddr_t) 0, 1); /* fire off */ PCVT_ENABLE_INTR (); } } return (ret); #else /* !PCVT_KBD_FIFO */ if((cp = sgetc(1)) == 0) return -1; if (kbd_polling) return 1; if(!(vs[current_video_screen].openf)) /* XXX was vs[minor(dev)] */ return 1; #if PCVT_NULLCHARS if(*cp == '\0') { /* pass a NULL character */ (*linesw[pcconsp->t_line].l_rint)('\0', pcconsp); return 1; } #endif /* PCVT_NULLCHARS */ while (*cp) (*linesw[pcconsp->t_line].l_rint)(*cp++ & 0xff, pcconsp); return 1; #endif /* PCVT_KBD_FIFO */ } #if PCVT_NETBSD || PCVT_FREEBSD >= 200 #if PCVT_NETBSD == 9 extern void ttrstrt(); #endif /* PCVT_NETBSD == 9 */ void pcstart(register struct tty *tp) { register struct clist *rbp; int s, len, n; u_char buf[PCVT_PCBURST]; s = spltty(); if (tp->t_state & (TS_TIMEOUT|TS_BUSY|TS_TTSTOP)) goto out; tp->t_state |= TS_BUSY; splx(s); async_update(UPDATE_KERN); /* * We need to do this outside spl since it could be fairly * expensive and we don't want our serial ports to overflow. */ rbp = &tp->t_outq; while (len = q_to_b(rbp, buf, PCVT_PCBURST)) sput(&buf[0], 0, len, minor(tp->t_dev)); s = spltty(); tp->t_state &= ~TS_BUSY; if (rbp->c_cc) { tp->t_state |= TS_TIMEOUT; timeout(ttrstrt, tp, 1); } if (rbp->c_cc <= tp->t_lowat) { if (tp->t_state&TS_ASLEEP) { tp->t_state &= ~TS_ASLEEP; wakeup((caddr_t)rbp); } selwakeup(&tp->t_wsel); } out: splx(s); } void pcstop(struct tty *tp, int flag) { } #else /* PCVT_NETBSD || PCVT_FREEBSD >= 200 */ void pcstart(struct tty *tp) { int s; unsigned char c; s = spltty(); if (tp->t_state & (TS_TIMEOUT|TS_BUSY|TS_TTSTOP)) { goto out; } for(;;) { #if !(PCVT_FREEBSD > 114) #if !(PCVT_FREEBSD > 111) if (RB_LEN(&tp->t_out) <= tp->t_lowat) #else if (RB_LEN(tp->t_out) <= tp->t_lowat) #endif { if (tp->t_state&TS_ASLEEP) { tp->t_state &= ~TS_ASLEEP; #if !(PCVT_FREEBSD > 111) wakeup((caddr_t)&tp->t_out); #else wakeup((caddr_t)tp->t_out); #endif } if (tp->t_wsel) { selwakeup(tp->t_wsel, tp->t_state & TS_WCOLL); tp->t_wsel = 0; tp->t_state &= ~TS_WCOLL; } } #else /* PCVT_FREEBSD > 114 */ if (tp->t_state & (TS_SO_OCOMPLETE | TS_SO_OLOWAT) || tp->t_wsel) { ttwwakeup(tp); } #endif /* !PCVT_FREEBSD > 114 */ #if !(PCVT_FREEBSD > 111) if (RB_LEN(&tp->t_out) == 0) #else if (RB_LEN(tp->t_out) == 0) #endif { goto out; } #if !(PCVT_FREEBSD > 111) c = getc(&tp->t_out); #else c = getc(tp->t_out); #endif tp->t_state |= TS_BUSY; /* patch from Frank Maclachlan */ splx(s); sput(&c, 0, 1, minor(tp->t_dev)); spltty(); tp->t_state &= ~TS_BUSY; /* patch from Frank Maclachlan */ } out: splx(s); } #endif /* PCVT_NETBSD || PCVT_FREEBSD >= 200 */ /*---------------------------------------------------------------------------* * /dev/console *---------------------------------------------------------------------------*/ #if !PCVT_NETBSD /* has moved to cons.c in netbsd-current */ void consinit() /* init for kernel messages during boot */ { } #endif /* PCVT_NETBSD */ int pccnprobe(struct consdev *cp) { int maj; /* locate the major number */ for (maj = 0; maj < nchrdev; maj++) { if ((u_int)cdevsw[maj].d_open == (u_int)pcopen) break; } if (maj == nchrdev) { /* we are not in cdevsw[], give up */ panic("pcvt is not in cdevsw[]"); } /* initialize required fields */ cp->cn_dev = makedev(maj, 0); cp->cn_pri = CN_INTERNAL; #if !PCVT_NETBSD #if !(PCVT_FREEBSD > 110 && PCVT_FREEBSD < 200) cp->cn_tp = &pccons[0]; #else cp->cn_tp = pccons[0]; #endif /* !(PCVT_FREEBSD > 110 && PCVT_FREEBSD < 200) */ #endif /* !PCVT_NETBSD */ return 1; } int pccninit(struct consdev *cp) { pcvt_is_console = 1; return 0; } int pccnputc(Dev_t dev, U_char c) { #if PCVT_SW0CNOUTP if(current_video_screen != 0) { #if !PCVT_USL_VT_COMPAT vgapage(0); #else switch_screen(0, 0); #endif /* !PCVT_USL_VT_COMPAT */ } #endif /* PCVT_SW0CNOUTP */ if (c == '\n') sput("\r", 1, 1, 0); sput((char *) &c, 1, 1, 0); async_update(UPDATE_KERN); return 0; } int pccngetc(Dev_t dev) { register int s; register u_char *cp; #ifdef XSERVER #if !PCVT_USL_VT_COMPAT if (pcvt_xmode) return 0; #else /* !PCVT_USL_VT_COMPAT */ if (pcvt_kbd_raw) return 0; #endif /* !PCVT_USL_VT_COMPAT */ #endif /* XSERVER */ s = spltty(); /* block pcrint while we poll */ cp = sgetc(0); splx(s); #if ! (PCVT_FREEBSD >= 201) /* this belongs to cons.c */ if (*cp == '\r') return('\n'); #endif /* ! (PCVT_FREEBSD >= 201) */ return (*cp); } #if PCVT_FREEBSD >= 200 int pccncheckc(Dev_t dev) { return (sgetc(1) != 0); /* did someone press the "Any" key? */ } #endif /* PCVT_FREEBSD >= 200 */ #if PCVT_NETBSD >= 100 void pccnpollc(Dev_t dev, int on) { kbd_polling = on; if (!on) { register int s; /* * If disabling polling, make sure there are no bytes left in * the FIFO, holding up the interrupt line. Otherwise we * won't get any further interrupts. */ s = spltty(); pcrint(); splx(s); } } #endif /* PCVT_NETBSD >= 100 */ /*---------------------------------------------------------------------------* * Set line parameters *---------------------------------------------------------------------------*/ int pcparam(struct tty *tp, struct termios *t) { register int cflag = t->c_cflag; /* and copy to tty */ tp->t_ispeed = t->c_ispeed; tp->t_ospeed = t->c_ospeed; tp->t_cflag = cflag; return(0); } /* special characters */ #define bs 8 #define lf 10 #define cr 13 #define cntlc 3 #define del 0177 #define cntld 4 int getchar(void) { u_char thechar; int x; kbd_polling = 1; x = splhigh(); sput(">", 1, 1, 0); async_update(UPDATE_KERN); thechar = *(sgetc(0)); kbd_polling = 0; splx(x); switch (thechar) { default: if (thechar >= ' ') sput(&thechar, 1, 1, 0); return(thechar); case cr: case lf: sput("\r\n", 1, 2, 0); return(lf); case bs: case del: sput("\b \b", 1, 3, 0); return(thechar); case cntlc: sput("^C\r\n", 1, 4, 0) ; cpu_reset(); case cntld: sput("^D\r\n", 1, 4, 0) ; return(0); } } #define DPAUSE 1 void dprintf(unsigned flgs, const char *fmt, ...) { va_list ap; if((flgs&__debug) > DPAUSE) { __color = ffs(flgs&__debug)+1; va_start(ap,fmt); kprintf(fmt, 1, (struct tty *)0, ap); va_end(ap); if (flgs & DPAUSE || nrow%24 == 23) { int x; x = splhigh(); if(nrow%24 == 23) nrow = 0; (void)sgetc(0); splx(x); } } __color = 0; } /*----------------------------------------------------------------------* * read initial VGA palette (as stored by VGA ROM BIOS) into * palette save area *----------------------------------------------------------------------*/ void vgapelinit(void) { register unsigned idx; register struct rgb *val; /* first, read all and store to first screen's save buffer */ for(idx = 0, val = vs[0].palette; idx < NVGAPEL; idx++, val++) vgapaletteio(idx, val, 0 /* read it */); /* now, duplicate for remaining screens */ for(idx = 1; idx < PCVT_NSCREENS; idx++) bcopy(vs[0].palette, vs[idx].palette, NVGAPEL * sizeof(struct rgb)); } #if defined XSERVER && !PCVT_USL_VT_COMPAT /*----------------------------------------------------------------------* * initialize for X mode * i.e.: grant current process (the X server) all IO priviledges, * and mark in static variable so other hooks can test for it, * save all loaded fonts and screen pages to pageable buffers; * if parameter `on' is false, the same procedure is done reverse. *----------------------------------------------------------------------*/ static int pcvt_xmode_set(int on, struct proc *p) { static unsigned char *saved_fonts[NVGAFONTS]; #if PCVT_SCREENSAVER static unsigned saved_scrnsv_tmo = 0; #endif /* PCVT_SCREENSAVER */ #if (PCVT_NETBSD > 9) || (PCVT_FREEBSD > 102) struct trapframe *fp; #else struct syscframe *fp; #endif /* PCVT_NETBSD > 9 */ int i; /* X will only run on VGA and Hercules adaptors */ if(adaptor_type != VGA_ADAPTOR && adaptor_type != MDA_ADAPTOR) return (EINVAL); #if PCVT_NETBSD > 9 fp = (struct trapframe *)p->p_regs; #else fp = (struct syscframe *)p->p_regs; #endif /* PCVT_NETBSD > 9 */ if(on) { /* * Test whether the calling process has super-user priviledges. * This prevents us from granting the potential security hole * `IO priv' to any process (effective uid is checked). */ if(suser(p->p_ucred, &p->p_acflag) != 0) return (EPERM); if(pcvt_xmode) return 0; pcvt_xmode = pcvt_kbd_raw = 1; for(i = 0; i < totalfonts; i++) { if(vgacs[i].loaded) { saved_fonts[i] = (unsigned char *) malloc(32 * 256, M_DEVBUF, M_WAITOK); if(saved_fonts[i] == 0) { printf( "pcvt_xmode_set: no font buffer available\n"); return (EAGAIN); } else { vga_move_charset(i, saved_fonts[i], 1); } } else { saved_fonts[i] = 0; } } #if PCVT_SCREENSAVER if(saved_scrnsv_tmo = scrnsv_timeout) pcvt_set_scrnsv_tmo(0); /* turn it off */ #endif /* PCVT_SCREENSAVER */ async_update(UPDATE_STOP); /* turn off */ /* disable text output and save screen contents */ /* video board memory -> kernel memory */ bcopy(vsp->Crtat, vsp->Memory, vsp->screen_rowsize * vsp->maxcol * CHR); vsp->Crtat = vsp->Memory; /* operate in memory now */ #if PCVT_SCANSET == 2 /* put keyboard to return ancient PC scan codes */ kbc_8042cmd(CONTR_WRITE); #if PCVT_USEKBDSEC /* security enabled */ outb(CONTROLLER_DATA, (COMMAND_SYSFLG|COMMAND_IRQEN|COMMAND_PCSCAN)); #else /* security disabled */ outb(CONTROLLER_DATA, (COMMAND_INHOVR|COMMAND_SYSFLG|COMMAND_IRQEN|COMMAND_PCSCAN)); #endif /* PCVT_USEKBDSEC */ #endif /* PCVT_SCANSET == 2 */ #if PCVT_NETBSD > 9 fp->tf_eflags |= PSL_IOPL; #else fp->sf_eflags |= PSL_IOPL; #endif /* PCVT_NETBSD > 9 */ } else { if(!pcvt_xmode) /* verify if in X */ return 0; pcvt_xmode = pcvt_kbd_raw = 0; for(i = 0; i < totalfonts; i++) { if(saved_fonts[i]) { vga_move_charset(i, saved_fonts[i], 0); free(saved_fonts[i], M_DEVBUF); saved_fonts[i] = 0; } } #if PCVT_NETBSD > 9 fp->tf_eflags &= ~PSL_IOPL; #else fp->sf_eflags &= ~PSL_IOPL; #endif /* PCVT_NETBSD > 9 */ #if PCVT_SCREENSAVER if(saved_scrnsv_tmo) pcvt_set_scrnsv_tmo(saved_scrnsv_tmo); #endif /* PCVT_SCREENSAVER */ #if PCVT_SCANSET == 2 kbc_8042cmd(CONTR_WRITE); #if PCVT_USEKBDSEC /* security enabled */ outb(CONTROLLER_DATA, (COMMAND_SYSFLG|COMMAND_IRQEN)); #else /* security disabled */ outb(CONTROLLER_DATA, (COMMAND_INHOVR|COMMAND_SYSFLG|COMMAND_IRQEN)); #endif /* PCVT_USEKBDSEC */ #endif /* PCVT_SCANSET == 2 */ if(adaptor_type == MDA_ADAPTOR) { /* * Due to the fact that HGC registers are write-only, * the Xserver can only make guesses about the state * the HGC adaptor has been before turning on X mode. * Thus, the display must be re-enabled now, and the * cursor shape and location restored. */ outb(GN_DMCNTLM, 0x28); /* enable display, text mode */ outb(addr_6845, CRTC_CURSORH); /* select high register */ outb(addr_6845+1, ((vsp->Crtat + vsp->cur_offset) - Crtat) >> 8); outb(addr_6845, CRTC_CURSORL); /* select low register */ outb(addr_6845+1, ((vsp->Crtat + vsp->cur_offset) - Crtat)); outb(addr_6845, CRTC_CURSTART); /* select high register */ outb(addr_6845+1, vsp->cursor_start); outb(addr_6845, CRTC_CUREND); /* select low register */ outb(addr_6845+1, vsp->cursor_end); } /* restore screen and re-enable text output */ /* kernel memory -> video board memory */ bcopy(vsp->Memory, Crtat, vsp->screen_rowsize * vsp->maxcol * CHR); vsp->Crtat = Crtat; /* operate on-screen now */ /* set crtc screen memory start address */ outb(addr_6845, CRTC_STARTADRH); outb(addr_6845+1, (vsp->Crtat - Crtat) >> 8); outb(addr_6845, CRTC_STARTADRL); outb(addr_6845+1, (vsp->Crtat - Crtat)); async_update(UPDATE_START); } return 0; } #endif /* XSERVER && !PCVT_USL_VT_COMPAT */ #endif /* NVT > 0 */ /*-------------------------- E O F -------------------------------------*/