The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/i386/isa/pcvt/pcvt_hdr.h

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    1 /*
    2  * Copyright (c) 1999, 2000 Hellmuth Michaelis
    3  *
    4  * Copyright (c) 1992, 1995 Hellmuth Michaelis and Joerg Wunsch.
    5  *
    6  * Copyright (c) 1992, 1993 Brian Dunford-Shore.
    7  *
    8  * All rights reserved.
    9  *
   10  * Redistribution and use in source and binary forms, with or without
   11  * modification, are permitted provided that the following conditions
   12  * are met:
   13  * 1. Redistributions of source code must retain the above copyright
   14  *    notice, this list of conditions and the following disclaimer.
   15  * 2. Redistributions in binary form must reproduce the above copyright
   16  *    notice, this list of conditions and the following disclaimer in the
   17  *    documentation and/or other materials provided with the distribution.
   18  * 3. All advertising materials mentioning features or use of this software
   19  *    must display the following acknowledgement:
   20  *      This product includes software developed by
   21  *      Hellmuth Michaelis, Brian Dunford-Shore and Joerg Wunsch.
   22  * 4. The name authors may not be used to endorse or promote products
   23  *    derived from this software without specific prior written permission.
   24  *
   25  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
   26  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   27  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   28  * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
   29  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   30  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   31  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   32  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   33  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   34  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   35  */
   36 
   37 /*---------------------------------------------------------------------------
   38  *
   39  *      pcvt_hdr.h      VT220 Driver Global Include File
   40  *      ------------------------------------------------
   41  *
   42  *      Last Edit-Date: [Wed Apr  5 18:21:32 2000]
   43  *
   44  * $FreeBSD: releng/5.0/sys/i386/isa/pcvt/pcvt_hdr.h 89855 2002-01-27 09:17:27Z joerg $
   45  *
   46  *---------------------------------------------------------------------------*/
   47 
   48 #define PCVT_REL "3.60"         /* driver attach announcement   */
   49                                 /* see also: pcvt_ioctl.h       */
   50 
   51 #include "opt_pcvt.h"
   52 
   53 #include <sys/param.h>
   54 #include <sys/systm.h>
   55 #include <sys/callout.h>
   56 #include <sys/conf.h>
   57 #include <sys/cons.h>
   58 #include <sys/kernel.h>
   59 #include <sys/lock.h>
   60 #include <sys/malloc.h>
   61 #include <sys/mutex.h>
   62 #include <sys/proc.h>
   63 #include <sys/random.h>
   64 #include <sys/signalvar.h>
   65 #include <sys/syslog.h>
   66 #include <sys/time.h>
   67 #include <sys/tty.h>
   68 #include <sys/uio.h>
   69 
   70 #include <machine/bus.h>
   71 #include <machine/psl.h>
   72 #include <machine/frame.h>
   73 #include <machine/pcvt_ioctl.h>
   74 #include <machine/pc/display.h>
   75 #include <machine/clock.h>
   76 #include <machine/md_var.h>
   77 #include <machine/stdarg.h>
   78 
   79 #include <dev/kbd/kbdreg.h>
   80 #include <dev/kbd/atkbdcreg.h>
   81 
   82 #include <i386/isa/pcvt/pcvt_conf.h>
   83 
   84 /*===========================================================================*
   85  *      definitions
   86  *===========================================================================*/
   87 
   88 #define PCVT_KBD_FIFO_SZ        256     /* keyboard fifo size */
   89 #define PCVT_PCBURST            256     /* # of burst out chars */
   90 #define SCROLLBACK_PAGES        8       /* scrollback buffer pages */
   91 #define SCROLLBACK_COOKIE       31337   /* scrollback buffer pages */
   92 #define PCVT_NONRESP_KEYB_TRY   25      /* no of times to try to detect */
   93                                         /* a nonresponding keyboard     */
   94 
   95 /*
   96  * The following values are defined in sys/kbio.h, but the header
   97  * file is not included here due to conflicts with pcvt_ioctl.h.
   98  * XXX: Still relevant ?
   99  */
  100 #define KDGKBTYPE       _IOR('K', 64, int)
  101 #define KB_84           1
  102 #define KB_101          2
  103 #define KB_OTHER        3
  104 
  105 /* setup irq disable function to use */
  106 
  107 #if !(PCVT_SLOW_INTERRUPT)
  108 # define PCVT_DISABLE_INTR()    disable_intr()
  109 # define PCVT_ENABLE_INTR()     enable_intr()
  110 # undef PCVT_SLOW_INTERRUPT
  111 #else
  112 # define PCVT_DISABLE_INTR()    s = spltty()
  113 # define PCVT_ENABLE_INTR()     splx(s)
  114 # undef PCVT_SLOW_INTERRUPT
  115 # define PCVT_SLOW_INTERRUPT 1
  116 #endif
  117 
  118 #ifdef XSERVER
  119 
  120 /* PCVT_NULLCHARS is mandatory for X server */
  121 
  122 #undef PCVT_NULLCHARS
  123 #define PCVT_NULLCHARS 1
  124 
  125 #endif /* XSERVER */
  126 
  127 /* PCVT_SCREENSAVER is mandatory for PCVT_PRETTYSCRNS */
  128 
  129 #if PCVT_PRETTYSCRNS && !PCVT_SCREENSAVER
  130 #undef PCVT_SCREENSAVER
  131 #define PCVT_SCREENSAVER 1
  132 #endif
  133 
  134 #if PCVT_SCANSET !=1 && PCVT_SCANSET !=2
  135 #error "Supported keyboard scancode sets are 1 and 2 only (for now)!!!"
  136 #endif
  137 
  138 /*---------------------------------------------------------------------------*
  139  *      keyboard
  140  *---------------------------------------------------------------------------*/
  141 
  142 /* responses from the KEYBOARD (via the 8042 controller on mainboard..) */
  143 
  144 #define KEYB_R_OVERRUN0 0x00    /* keyboard buffer overflow */
  145 #define KEYB_R_SELFOK   0xaa    /* keyboard selftest ok after KEYB_C_RESET */
  146 #define KEYB_R_EXT0     0xe0    /* keyboard extended scancode prefix 1 */
  147 #define KEYB_R_EXT1     0xe1    /* keyboard extended scancode prefix 2 */
  148 #define KEYB_R_ECHO     0xee    /* keyboard response to KEYB_C_ECHO */
  149 #define KEYB_R_BREAKPFX 0xf0    /* break code prefix for set 2 and 3 */
  150 #define KEYB_R_ACK      0xfa    /* acknowledge after a command has rx'd */
  151 #define KEYB_R_SELFBAD  0xfc    /*keyboard selftest FAILED after KEYB_C_RESET*/
  152 #define KEYB_R_DIAGBAD  0xfd    /* keyboard self diagnostic failure */
  153 #define KEYB_R_RESEND   0xfe    /* keyboard wants command resent or illegal
  154                                  * command rx'd */
  155 #define KEYB_R_OVERRUN1 0xff    /* keyboard buffer overflow */
  156 
  157 #define KEYB_R_MF2ID1   0xab    /* MF II Keyboard id-byte #1 */
  158 #define KEYB_R_MF2ID2   0x41    /* MF II Keyboard id-byte #2 */
  159 #define KEYB_R_MF2ID2HP 0x83    /* MF II Keyboard id-byte #2 from HP keybd's */
  160 
  161 /* internal Keyboard Type */
  162 
  163 #define KB_UNKNOWN      0       /* unknown keyboard type */
  164 #define KB_AT           1       /* AT (84 keys) Keyboard */
  165 #define KB_MFII         2       /* MF II (101/102 keys) Keyboard */
  166 
  167 /*---------------------------------------------------------------------------*
  168  *      CMOS ram access to get the "Equipment Byte"
  169  *---------------------------------------------------------------------------*/
  170 
  171 #define RTC_EQUIPMENT   0x14    /* equipment byte in cmos ram   */
  172 #define EQ_EGAVGA       0       /* reserved (= ega/vga)         */
  173 #define EQ_40COLOR      1       /* display = 40 col color       */
  174 #define EQ_80COLOR      2       /* display = 80 col color       */
  175 #define EQ_80MONO       3       /* display = 80 col mono        */
  176 
  177 /*---------------------------------------------------------------------------*
  178  *      VT220 -> internal color conversion table fields
  179  *---------------------------------------------------------------------------*/
  180 
  181 #define VT_NORMAL       0x00            /* no attributes at all */
  182 #define VT_BOLD         0x01            /* bold attribute */
  183 #define VT_UNDER        0x02            /* underline attribute */
  184 #define VT_BLINK        0x04            /* blink attribute */
  185 #define VT_INVERSE      0x08            /* inverse attribute */
  186 
  187 /*---------------------------------------------------------------------------*
  188  *      VGA GENERAL/EXTERNAL Registers          (3BA or 3DA and 3CA, 3C2, 3CC)
  189  *---------------------------------------------------------------------------*/
  190 
  191 #define GN_MISCOUTR     0x3CC           /* misc output register read */
  192 #define GN_MISCOUTW     0x3C2           /* misc output register write */
  193 #define GN_INPSTAT0     0x3C2           /* input status 0, r/o */
  194 #define GN_INPSTAT1M    0x3BA           /* input status 1, r/o, mono */
  195 #define GN_INPSTAT1C    0x3DA           /* input status 1, r/o, color */
  196 #define GN_FEATR        0x3CA           /* feature control, read */
  197 #define GN_FEATWM       0x3BA           /* feature control, write, mono */
  198 #define GN_FEATWC       0x3DA           /* feature control, write, color */
  199 #define GN_VSUBSYS      0x3C3           /* video subsystem register r/w */
  200 #define GN_DMCNTLM      0x3B8           /* display mode control, r/w, mono */
  201 #define GN_DMCNTLC      0x3D8           /* display mode control, r/w, color */
  202 #define GN_COLORSEL     0x3D9           /* color select register, w/o */
  203 #define GN_HERCOMPAT    0x3BF           /* Hercules compatibility reg, w/o */
  204 
  205 /*---------------------------------------------------------------------------*
  206  *      VGA CRTC Registers                        (3B4 and 3B5 or 3D4 and 3D5)
  207  *---------------------------------------------------------------------------*/
  208 
  209 #define MONO_BASE       0x3B4           /* crtc index register address mono */
  210 #define CGA_BASE        0x3D4           /* crtc index register address color */
  211 
  212 #define CRTC_ADDR       0x00            /* index register */
  213 
  214 #define CRTC_HTOTAL     0x00            /* horizontal total */
  215 #define CRTC_HDISPLE    0x01            /* horizontal display end */
  216 #define CRTC_HBLANKS    0x02            /* horizontal blank start */
  217 #define CRTC_HBLANKE    0x03            /* horizontal blank end */
  218 #define CRTC_HSYNCS     0x04            /* horizontal sync start */
  219 #define CRTC_HSYNCE     0x05            /* horizontal sync end */
  220 #define CRTC_VTOTAL     0x06            /* vertical total */
  221 #define CRTC_OVERFLL    0x07            /* overflow low */
  222 #define CRTC_IROWADDR   0x08            /* inital row address */
  223 #define CRTC_MAXROW     0x09            /* maximum row address */
  224 #define CRTC_CURSTART   0x0A            /* cursor start row address */
  225 #define         CURSOR_ON_BIT 0x20      /* cursor on/off on mda/cga/vga */
  226 #define CRTC_CUREND     0x0B            /* cursor end row address */
  227 #define CRTC_STARTADRH  0x0C            /* linear start address mid */
  228 #define CRTC_STARTADRL  0x0D            /* linear start address low */
  229 #define CRTC_CURSORH    0x0E            /* cursor address mid */
  230 #define CRTC_CURSORL    0x0F            /* cursor address low */
  231 #define CRTC_VSYNCS     0x10            /* vertical sync start */
  232 #define CRTC_VSYNCE     0x11            /* vertical sync end */
  233 #define CRTC_VDE        0x12            /* vertical display end */
  234 #define CRTC_OFFSET     0x13            /* row offset */
  235 #define CRTC_ULOC       0x14            /* underline row address */
  236 #define CRTC_VBSTART    0x15            /* vertical blank start */
  237 #define CRTC_VBEND      0x16            /* vertical blank end */
  238 #define CRTC_MODE       0x17            /* CRTC mode register */
  239 #define CRTC_SPLITL     0x18            /* split screen start low */
  240 
  241 /* start of ET4000 extensions */
  242 
  243 #define CRTC_RASCAS     0x32            /* ras/cas configuration */
  244 #define CRTC_EXTSTART   0x33            /* extended start address */
  245 #define CRTC_COMPAT6845 0x34            /* 6845 comatibility control */
  246 #define CRTC_OVFLHIGH   0x35            /* overflow high */
  247 #define CRTC_SYSCONF1   0x36            /* video system configuration 1 */
  248 #define CRTC_SYSCONF2   0x36            /* video system configuration 2 */
  249 
  250 /* start of WD/Paradise extensions */
  251 
  252 #define CRTC_PR10       0x29            /* r/w unlocking */
  253 #define CRTC_PR11       0x2A            /* ega switches */
  254 #define CRTC_PR12       0x2B            /* scratch pad */
  255 #define CRTC_PR13       0x2C            /* interlace h/2 start */
  256 #define CRTC_PR14       0x2D            /* interlace h/2 end */
  257 #define CRTC_PR15       0x2E            /* misc control #1 */
  258 #define CRTC_PR16       0x2F            /* misc control #2 */
  259 #define CRTC_PR17       0x30            /* misc control #3 */
  260                                         /* 0x31 .. 0x3f reserved */
  261 /* Video 7 */
  262 
  263 #define CRTC_V7ID       0x1f            /* identification register */
  264 
  265 /* Trident */
  266 
  267 #define CRTC_MTEST      0x1e            /* module test register */
  268 #define CRTC_SOFTPROG   0x1f            /* software programming */
  269 #define CRTC_LATCHRDB   0x22            /* latch read back register */
  270 #define CRTC_ATTRSRDB   0x24            /* attribute state read back register*/
  271 #define CRTC_ATTRIRDB   0x26            /* attribute index read back register*/
  272 #define CRTC_HOSTAR     0x27            /* high order start address register */
  273 
  274 /*---------------------------------------------------------------------------*
  275  *      VGA TIMING & SEQUENCER Registers                         (3C4 and 3C5)
  276  *---------------------------------------------------------------------------*/
  277 
  278 #define TS_INDEX        0x3C4           /* index register */
  279 #define TS_DATA         0x3C5           /* data register */
  280 
  281 #define TS_SYNCRESET    0x00            /* synchronous reset */
  282 #define TS_MODE         0x01            /* ts mode register */
  283 #define TS_WRPLMASK     0x02            /* write plane mask */
  284 #define TS_FONTSEL      0x03            /* font select register */
  285 #define TS_MEMMODE      0x04            /* memory mode register */
  286 
  287 /* ET4000 only */
  288 
  289 #define TS_RESERVED     0x05            /* undef, reserved */
  290 #define TS_STATECNTL    0x06            /* state control register */
  291 #define TS_AUXMODE      0x07            /* auxiliary mode control */
  292 
  293 /* WD/Paradise only */
  294 
  295 #define TS_UNLOCKSEQ    0x06            /* PR20 - unlock sequencer register */
  296 #define TS_DISCFSTAT    0x07            /* PR21 - display config status */
  297 #define TS_MEMFIFOCTL   0x10            /* PR30 - memory i/f & fifo control */
  298 #define TS_SYSIFCNTL    0x11            /* PR31 - system interface control */
  299 #define TS_MISC4        0x12            /* PR32 - misc control #4 */
  300 
  301 /* Video 7 */
  302 
  303 #define TS_EXTCNTL      0x06            /* extensions control */
  304 #define TS_CLRVDISP     0x30            /* clear vertical display 0x30-0x3f */
  305 #define TS_V7CHIPREV    0x8e            /* chipset revision 0x8e-0x8f */
  306 #define TS_SWBANK       0xe8            /* single/write bank register, rev 5+*/
  307 #define TS_RDBANK       0xe8            /* read bank register, rev 4+ */
  308 #define TS_MISCCNTL     0xe8            /* misc control register, rev 4+ */
  309 #define TS_SWSTROBE     0xea            /* switch strobe */
  310 #define TS_MWRCNTL      0xf3            /* masked write control */
  311 #define TS_MWRMVRAM     0xf4            /* masked write mask VRAM only */
  312 #define TS_BANKSEL      0xf6            /* bank select */
  313 #define TS_SWREADB      0xf7            /* switch readback */
  314 #define TS_PAGESEL      0xf9            /* page select */
  315 #define TS_COMPAT       0xfc            /* compatibility control */
  316 #define TS_16BITCTL     0xff            /* 16 bit interface control */
  317 
  318 /* Trident */
  319 
  320 #define TS_HWVERS       0x0b            /* hardware version, switch old/new! */
  321 #define TS_CONFPORT1    0x0c            /* config port 1 and 2    - caution! */
  322 #define TS_MODEC2       0x0d            /* old/new mode control 2 - caution! */
  323 #define TS_MODEC1       0x0e            /* old/new mode control 1 - caution! */
  324 #define TS_PUPM2        0x0f            /* power up mode 2 */
  325 
  326 /*---------------------------------------------------------------------------*
  327  *      VGA GRAPHICS DATA CONTROLLER Registers              (3CE, 3CF and 3CD)
  328  *---------------------------------------------------------------------------*/
  329 
  330 #define GDC_SEGSEL      0x3CD           /* segment select register */
  331 #define GDC_INDEX       0x3CE           /* index register */
  332 #define GDC_DATA        0x3CF           /* data register */
  333 
  334 #define GDC_SETRES      0x00            /* set / reset bits */
  335 #define GDC_ENSETRES    0x01            /* enable set / reset */
  336 #define GDC_COLORCOMP   0x02            /* color compare register */
  337 #define GDC_ROTFUNC     0x03            /* data rotate / function select */
  338 #define GDC_RDPLANESEL  0x04            /* read plane select */
  339 #define GDC_MODE        0x05            /* gdc mode register */
  340 #define GDC_MISC        0x06            /* gdc misc register */
  341 #define GDC_COLORCARE   0x07            /* color care register */
  342 #define GDC_BITMASK     0x08            /* bit mask register */
  343 
  344 /* WD/Paradise only */
  345 
  346 #define GDC_BANKSWA     0x09            /* PR0A - bank switch a */
  347 #define GDC_BANKSWB     0x0a            /* PR0B - bank switch b */
  348 #define GDC_MEMSIZE     0x0b            /* PR1 memory size */
  349 #define GDC_VIDEOSEL    0x0c            /* PR2 video configuration */
  350 #define GDC_CRTCNTL     0x0d            /* PR3 crt address control */
  351 #define GDC_VIDEOCNTL   0x0e            /* PR4 video control */
  352 #define GDC_PR5GPLOCK   0x0f            /* PR5 gp status and lock */
  353 
  354 /* Video 7 */
  355 
  356 #define GDC_DATALATCH   0x22            /* gdc data latch */
  357 
  358 /*---------------------------------------------------------------------------*
  359  *      VGA ATTRIBUTE CONTROLLER Registers                       (3C0 and 3C1)
  360  *---------------------------------------------------------------------------*/
  361 
  362 #define ATC_INDEX       0x3C0           /* index register  AND  */
  363 #define ATC_DATAW       0x3C0           /* data write      !!!  */
  364 #define ATC_DATAR       0x3C1           /* data read */
  365 
  366 #define ATC_ACCESS      0x20            /* access bit in ATC index register */
  367 
  368 #define ATC_PALETTE0    0x00            /* color palette register 0 */
  369 #define ATC_PALETTE1    0x01            /* color palette register 1 */
  370 #define ATC_PALETTE2    0x02            /* color palette register 2 */
  371 #define ATC_PALETTE3    0x03            /* color palette register 3 */
  372 #define ATC_PALETTE4    0x04            /* color palette register 4 */
  373 #define ATC_PALETTE5    0x05            /* color palette register 5 */
  374 #define ATC_PALETTE6    0x06            /* color palette register 6 */
  375 #define ATC_PALETTE7    0x07            /* color palette register 7 */
  376 #define ATC_PALETTE8    0x08            /* color palette register 8 */
  377 #define ATC_PALETTE9    0x09            /* color palette register 9 */
  378 #define ATC_PALETTEA    0x0A            /* color palette register 10 */
  379 #define ATC_PALETTEB    0x0B            /* color palette register 11 */
  380 #define ATC_PALETTEC    0x0C            /* color palette register 12 */
  381 #define ATC_PALETTED    0x0D            /* color palette register 13 */
  382 #define ATC_PALETTEE    0x0E            /* color palette register 14 */
  383 #define ATC_PALETTEF    0x0F            /* color palette register 15 */
  384 #define ATC_MODE        0x10            /* atc mode register */
  385 #define ATC_OVERSCAN    0x11            /* overscan register */
  386 #define ATC_COLPLEN     0x12            /* color plane enable register */
  387 #define ATC_HORPIXPAN   0x13            /* horizontal pixel panning */
  388 #define ATC_COLRESET    0x14            /* color reset */
  389 #define ATC_MISC        0x16            /* misc register (ET3000/ET4000) */
  390 
  391 /*---------------------------------------------------------------------------*
  392  *      VGA palette handling (output DAC palette)
  393  *---------------------------------------------------------------------------*/
  394 
  395 #define VGA_DAC         0x3C6           /* vga dac address */
  396 #define VGA_PMSK        0x3F            /* palette mask, 64 distinct values */
  397 #define NVGAPEL         256             /* number of palette entries */
  398 
  399 /*---------------------------------------------------------------------------*
  400  *      function key labels
  401  *---------------------------------------------------------------------------*/
  402 
  403 #define LABEL_LEN       9               /* length of one label */
  404 #define LABEL_MID       8               /* mid-part (row/col)   */
  405 
  406 #define LABEL_ROWH      ((4*LABEL_LEN)+1)
  407 #define LABEL_ROWL      ((4*LABEL_LEN)+2)
  408 #define LABEL_COLU      ((4*LABEL_LEN)+4)
  409 #define LABEL_COLH      ((4*LABEL_LEN)+5)
  410 #define LABEL_COLL      ((4*LABEL_LEN)+6)
  411 
  412 /* tab setting */
  413 
  414 #define MAXTAB 132              /* no of possible tab stops */
  415 
  416 /* escape detection state machine */
  417 
  418 #define STATE_INIT      0       /* normal       */
  419 #define STATE_ESC       1       /* got ESC      */
  420 #define STATE_BLANK     2       /* got ESC space*/
  421 #define STATE_HASH      3       /* got ESC #    */
  422 #define STATE_BROPN     4       /* got ESC (    */
  423 #define STATE_BRCLO     5       /* got ESC )    */
  424 #define STATE_CSI       6       /* got ESC [    */
  425 #define STATE_CSIQM     7       /* got ESC [ ?  */
  426 #define STATE_AMPSND    8       /* got ESC &    */
  427 #define STATE_STAR      9       /* got ESC *    */
  428 #define STATE_PLUS      10      /* got ESC +    */
  429 #define STATE_DCS       11      /* got ESC P    */
  430 #define STATE_SCA       12      /* got ESC <Ps> " */
  431 #define STATE_STR       13      /* got ESC !    */
  432 #define STATE_MINUS     14      /* got ESC -    */
  433 #define STATE_DOT       15      /* got ESC .    */
  434 #define STATE_SLASH     16      /* got ESC /    */
  435 
  436 /* for storing escape sequence parameters */
  437 
  438 #define MAXPARMS        10      /* maximum no of parms */
  439 
  440 /* terminal responses */
  441 
  442 #define DA_VT220        "\033[?62;1;2;6;7;8;9c"
  443 
  444 /* sub-states for Device Control String processing */
  445 
  446 #define DCS_INIT        0       /* got ESC P ... */
  447 #define DCS_AND_UDK     1       /* got ESC P ... | */
  448 #define DCS_UDK_DEF     2       /* got ESC P ... | fnckey / */
  449 #define DCS_UDK_ESC     3       /* got ESC P ... | fnckey / ... ESC */
  450 #define DCS_DLD_DSCS    4       /* got ESC P ... { */
  451 #define DCS_DLD_DEF     5       /* got ESC P ... { dscs */
  452 #define DCS_DLD_ESC     6       /* got ESC P ... { dscs ... / ... ESC */
  453 
  454 /* vt220 user defined keys and vt220 downloadable charset */
  455 
  456 #define MAXUDKDEF       300     /* max 256 char + 1 '\0' + space.. */
  457 #define MAXUDKEYS       18      /* plus holes .. */
  458 #define DSCS_LENGTH     3       /* descriptor length */
  459 #define MAXSIXEL        8       /* sixels forever ! */
  460 
  461 /* sub-states for HP-terminal emulator */
  462 
  463 #define SHP_INIT        0
  464 
  465 /* esc & f family */
  466 
  467 #define SHP_AND_F       1
  468 #define SHP_AND_Fa      2
  469 #define SHP_AND_Fak     3
  470 #define SHP_AND_Fak1    4
  471 #define SHP_AND_Fakd    5
  472 #define SHP_AND_FakdL   6
  473 #define SHP_AND_FakdLl  7
  474 #define SHP_AND_FakdLls 8
  475 
  476 /* esc & j family */
  477 
  478 #define SHP_AND_J       9
  479 #define SHP_AND_JL      10
  480 
  481 /* esc & every-thing-else */
  482 
  483 #define SHP_AND_ETE     11
  484 
  485 /* additionals for function key labels */
  486 
  487 #define MAX_LABEL       16
  488 #define MAX_STRING      80
  489 #define MAX_STATUS      160
  490 
  491 /* MAX values for screen sizes for possible video adaptors */
  492 
  493 #define MAXROW_MDACGA   25              /* MDA/CGA can do 25 x 80 max */
  494 #define MAXCOL_MDACGA   80
  495 
  496 #define MAXROW_EGA      43              /* EGA can do 43 x 80 max */
  497 #define MAXCOL_EGA      80
  498 
  499 #define MAXROW_VGA      50              /* VGA can do 50 x 80 max */
  500 #define MAXCOL_VGA      80
  501 #define MAXCOL_SVGA     132             /* Super VGA can do 50 x 132 max */
  502 
  503 /* switch 80/132 columns */
  504 
  505 #define SCR_COL80       80              /* in 80 col mode */
  506 #define SCR_COL132      132             /* in 132 col mode */
  507 
  508 #define MAXDECSCA       (((MAXCOL_SVGA * MAXROW_VGA) \
  509                         / (8 * sizeof(unsigned int)) ) + 1 )
  510 
  511 /* screen memory start, monochrome */
  512 
  513 #ifndef MONO_BUF
  514 #define MONO_BUF        (KERNBASE+0xB0000)
  515 #endif
  516 
  517 /* screen memory start, color */
  518 
  519 #ifndef CGA_BUF
  520 #define CGA_BUF         (KERNBASE+0xB8000)
  521 #endif
  522 
  523 #define CHR             2               /* bytes per word in screen mem */
  524 
  525 #define NVGAFONTS       8               /* number of vga fonts loadable */
  526 
  527 #define MAXKEYNUM       127             /* max no of keys in table */
  528 
  529 /* charset tables */
  530 
  531 #define CSL     0x0000          /* ega/vga charset, lower half of 512 */
  532 #define CSH     0x0800          /* ega/vga charset, upper half of 512 */
  533 #define CSSIZE  96              /* (physical) size of a character set */
  534 
  535 /* charset designations */
  536 
  537 #define D_G0            0       /* designated as G0 */
  538 #define D_G1            1       /* designated as G1 */
  539 #define D_G2            2       /* designated as G2 */
  540 #define D_G3            3       /* designated as G3 */
  541 #define D_G1_96         4       /* designated as G1 for 96-char charsets */
  542 #define D_G2_96         5       /* designated as G2 for 96-char charsets */
  543 #define D_G3_96         6       /* designated as G3 for 96-char charsets */
  544 
  545 /* which fkey-labels */
  546 
  547 #define SYS_FKL         0       /* in hp mode, sys-fkls are active */
  548 #define USR_FKL         1       /* in hp mode, user-fkls are active */
  549 
  550 /* arguments to async_update() */
  551 
  552 #define UPDATE_START    ((void *)0)     /* do cursor update and requeue */
  553 #define UPDATE_STOP     ((void *)1)     /* suspend cursor updates */
  554 #define UPDATE_KERN     ((void *)2)     /* do cursor updates for kernel output */
  555 
  556 
  557 /*===========================================================================*
  558  *      variables
  559  *===========================================================================*/
  560 
  561 #ifdef MAIN
  562 # define EXTERN /* actually define variables when included from pcvt_drv.c */
  563 #else
  564 # define EXTERN extern                  /* declare them only */
  565 #endif
  566 
  567 EXTERN u_char   *more_chars;            /* response buffer via kbd */
  568 EXTERN u_char   color;                  /* color or mono display */
  569 
  570 EXTERN u_short  kern_attr;              /* kernel messages char attributes */
  571 EXTERN u_short  user_attr;              /* character attributes */
  572 
  573 EXTERN struct tty pcvt_tty[PCVT_NSCREENS];
  574 
  575 struct sixels {
  576         u_char lower[MAXSIXEL];         /* lower half of char */
  577         u_char upper[MAXSIXEL];         /* upper half of char */
  578 };
  579 
  580 struct udkentry {
  581         u_char  first[MAXUDKEYS];       /* index to first char */
  582         u_char  length[MAXUDKEYS];      /* length of this entry */
  583 };
  584 
  585 /* VGA palette handling */
  586 struct rgb {
  587         u_char  r, g, b;                /* red/green/blue, valid 0..VGA_PMSK */
  588 };
  589 
  590 typedef struct video_state {
  591         u_short *Crtat;                 /* video page start addr */
  592         u_short *Memory;                /* malloc'ed memory start address */
  593         struct tty *vs_tty;             /* pointer to this screen's tty */
  594         u_char  maxcol;                 /* 80 or 132 cols on screen */
  595         u_char  row, col;               /* current cursor position */
  596         u_short c_attr;                 /* current character attributes */
  597         u_char  vtsgr;                  /* current sgr configuration */
  598         u_short cur_offset;             /* current cursor position offset */
  599         u_char  bell_on;                /* flag, bell enabled */
  600         u_char  sevenbit;               /* flag, data path 7 bits wide */
  601         u_char  dis_fnc;                /* flag, display functions enable */
  602         u_char  transparent;            /* flag, mk path tmp trnsprnt for ctls*/
  603         u_char  scrr_beg;               /* scrolling region, begin */
  604         u_char  scrr_len;               /* scrolling region, length */
  605         u_char  scrr_end;               /* scrolling region, end */
  606         u_char  screen_rows;            /* screen size, length - status lines */
  607         u_char  screen_rowsize;         /* screen size, length */
  608         u_char  vga_charset;            /* VGA character set value */
  609         u_char  lastchar;               /* flag, vt100 behaviour of last char */
  610         u_char  lastrow;                /* save row, --------- " -----------  */
  611         u_char  *report_chars;          /* ptr, status reports from terminal */
  612         u_char  report_count;           /* count, ----------- " ------------ */
  613         u_char  state;                  /* escape sequence state machine */
  614         u_char  m_awm;                  /* flag, vt100 mode, auto wrap */
  615         u_char  m_om;                   /* flag, vt100 mode, origin mode */
  616         u_char  sc_flag;                /* flag, vt100 mode,saved parms valid */
  617         u_char  sc_row;                 /* saved row */
  618         u_char  sc_col;                 /* saved col */
  619         u_short sc_cur_offset;          /* saved cursor addr offset */
  620         u_short sc_attr;                /* saved attributes */
  621         u_char  sc_vtsgr;               /* saved sgr configuration */
  622         u_char  sc_awm;                 /* saved auto wrap mode */
  623         u_char  sc_om;                  /* saved origin mode */
  624         u_short *sc_G0;                 /* save G0 ptr */
  625         u_short *sc_G1;                 /* save G1 ptr */
  626         u_short *sc_G2;                 /* save G2 ptr */
  627         u_short *sc_G3;                 /* save G3 ptr */
  628         u_short **sc_GL;                /* save GL ptr */
  629         u_short **sc_GR;                /* save GR ptr */
  630         u_char  sc_sel;                 /* selective erase state */
  631         u_char  ufkl[8][17];            /* user fkey-labels */
  632         u_char  sfkl[8][17];            /* system fkey-labels */
  633         u_char  labels_on;              /* display fkey labels etc. on/off */
  634         u_char  which_fkl;              /* which fkey labels are active */
  635         char    tab_stops[MAXTAB];      /* table of active tab stops */
  636         u_char  parmi;                  /* parameter index */
  637         u_char  parms[MAXPARMS];        /* parameter array */
  638         u_char  hp_state;               /* hp escape sequence state machine */
  639         u_char  attribute;              /* attribute normal, tx only, local */
  640         u_char  key;                    /* fkey label no */
  641         u_char  l_len;                  /* buffer length's */
  642         u_char  s_len;
  643         u_char  m_len;
  644         u_char  i;                      /* help (got short of names ...) */
  645         u_char  l_buf[MAX_LABEL+1];     /* buffers */
  646         u_char  s_buf[MAX_STRING+1];
  647         u_char  m_buf[MAX_STATUS+1];
  648         u_char  openf;                  /* we are opened ! */
  649         u_char  vt_pure_mode;           /* no fkey labels, row/col, status */
  650         u_char  cursor_start;           /* Start of cursor */
  651         u_char  cursor_end;             /* End of cursor */
  652         u_char  cursor_on;              /* cursor switched on */
  653         u_char  ckm;                    /* true = cursor key normal mode */
  654         u_char  irm;                    /* true = insert mode */
  655         u_char  lnm;                    /* Line Feed/New Line Mode */
  656         u_char  dcs_state;              /* dcs escape sequence state machine */
  657         u_char  udk_def[MAXUDKDEF];     /* new definitions for vt220 FKeys */
  658         u_char  udk_defi;               /* index for FKey definitions */
  659         u_char  udk_deflow;             /* low or high nibble in sequence */
  660         u_char  udk_fnckey;             /* function key to assign to */
  661         u_char  dld_dscs[DSCS_LENGTH];  /* designate soft character set id */
  662         u_char  dld_dscsi;              /* index for dscs */
  663         u_char  dld_sixel_lower;        /* upper/lower sixels of character */
  664         u_char  dld_sixelli;            /* index for lower sixels */
  665         u_char  dld_sixelui;            /* index for upper sixels */
  666         struct sixels sixel;            /* structure for storing char sixels */
  667         u_char  selchar;                /* true = selective attribute on */
  668         u_int   decsca[MAXDECSCA];      /* Select Character Attrib bit array */
  669         u_short **GL;                   /* ptr to current GL conversion table*/
  670         u_short **GR;                   /* ptr to current GR conversion table*/
  671         u_short *G0;                    /* ptr to current G0 conversion table*/
  672         u_short *G1;                    /* ptr to current G1 conversion table*/
  673         u_char force24;                 /* force 24 lines in DEC 25 and HP 28*/
  674         u_short *G2;                    /* ptr to current G2 conversion table*/
  675         u_short *G3;                    /* ptr to current G3 conversion table*/
  676         u_char  dld_id[DSCS_LENGTH+1];  /* soft character set id */
  677         u_char  which[DSCS_LENGTH+1];   /* which set to designate */
  678         u_char  whichi;                 /* index into which ..  */
  679         u_char  ss;                     /* flag, single shift G2 / G3 -> GL */
  680         u_short **Gs;                   /* ptr to cur. G2/G3 conversion table*/
  681         u_char  udkbuf[MAXUDKDEF];      /* buffer for user defined keys */
  682         struct udkentry ukt;            /* index & length for each udk */
  683         u_char  udkff;                  /* index into buffer first free entry*/
  684         struct rgb palette[NVGAPEL];    /* saved VGA DAC palette */
  685         u_char  wd132col;               /* we are on a wd vga and in 132 col */
  686         u_char  scroll_lock;            /* scroll lock active */
  687         u_char  caps_lock;              /* caps lock active */
  688         u_char  shift_lock;             /* shiftlock flag (virtual ..) */
  689         u_char  num_lock;               /* num lock, true = keypad num mode */
  690         u_char  abs_write;              /* write outside of scroll region */
  691 
  692         u_short *Scrollback;            /* scrollback buffer */
  693         u_short scrollback_pages;       /* size of scrollback buffer */
  694         u_short scr_offset;             /* current scrollback offset (lines) */
  695         short scrolling;                /* current scrollback page */
  696         u_short max_off;                /* maximum scrollback offset */
  697 #ifdef XSERVER
  698         struct vt_mode smode;
  699         struct proc *proc;
  700         pid_t pid;
  701         unsigned vt_status;
  702 #define VT_WAIT_REL 1                   /* wait till process released vt */
  703 #define VT_WAIT_ACK 2                   /* wait till process ack vt acquire */
  704 #define VT_GRAFX    4                   /* vt runs graphics mode */
  705 #define VT_WAIT_ACT 8                   /* a process is sleeping on this vt */
  706                                         /*  becoming active */
  707 #endif /* XSERVER */
  708 } video_state;
  709 
  710 EXTERN video_state vs[PCVT_NSCREENS];   /* parameters for screens */
  711 
  712 struct vga_char_state {
  713         int     loaded;                 /* Whether a font is loaded here */
  714         int     secondloaded;           /* an extension characterset was loaded, */
  715                                         /*      the number is found here         */
  716         u_char  char_scanlines;         /* Scanlines per character */
  717         u_char  scr_scanlines;          /* Low byte of scanlines per screen */
  718         int     screen_size;            /* Screen size in SIZ_YYROWS */
  719 };
  720 
  721 EXTERN struct vga_char_state vgacs[NVGAFONTS];  /* Character set states */
  722 
  723 EXTERN u_short *Crtat;                  /* screen start address */
  724 
  725 #ifdef MAIN
  726 
  727 u_char fgansitopc[] = {                 /* foreground ANSI color -> pc */
  728         FG_BLACK, FG_RED, FG_GREEN, FG_BROWN, FG_BLUE,
  729         FG_MAGENTA, FG_CYAN, FG_LIGHTGREY
  730 };
  731 
  732 u_char bgansitopc[] = {                 /* background ANSI color -> pc */
  733         BG_BLACK, BG_RED, BG_GREEN, BG_BROWN, BG_BLUE,
  734         BG_MAGENTA, BG_CYAN, BG_LIGHTGREY
  735 };
  736 
  737 struct tty *pcvt_ttyp = &pcvt_tty[0];   /* ptr to current device */
  738 video_state *vsp = &vs[0];              /* ptr to current screen parms */
  739 
  740 #ifdef XSERVER
  741 int     vt_switch_pending       = 0;            /* if > 0, a vt switch is */
  742 #endif /* XSERVER */                            /* pending; contains the # */
  743                                                 /* of the old vt + 1 */
  744 
  745 u_int   addr_6845               = MONO_BASE;    /* crtc base addr */
  746 u_char  do_initialization       = 1;            /* we have to init ourselves */
  747 u_char  pcvt_is_console         = 0;            /* until we know it */
  748 u_char  shift_down              = 0;            /* shift key down flag */
  749 u_char  ctrl_down               = 0;            /* ctrl key down flag */
  750 u_char  meta_down               = 0;            /* alt key down flag */
  751 u_char  altgr_down              = 0;            /* altgr key down flag */
  752 u_char  kbrepflag               = 1;            /* key repeat flag */
  753 u_char  totalscreens            = 1;            /* screens available */
  754 u_char  current_video_screen    = 0;            /* displayed screen no */
  755 u_char  adaptor_type            = UNKNOWN_ADAPTOR;/* adaptor type */
  756 u_char  vga_type                = VGA_UNKNOWN;  /* vga chipset */
  757 u_char  can_do_132col           = 0;            /* vga chipset can 132 cols */
  758 u_char  vga_family              = 0;            /* vga manufacturer */
  759 u_char  totalfonts              = 0;            /* fonts available */
  760 u_char  chargen_access          = 0;            /* synchronize access */
  761 u_char  keyboard_type           = KB_UNKNOWN;   /* type of keyboard */
  762 u_char  keyboard_is_initialized = 0;            /* for ddb sanity */
  763 u_char  kbd_polling             = 0;            /* keyboard is being polled */
  764 u_char  reset_keyboard          = 0;            /* OK to reset keyboard */
  765 keyboard_t *kbd                 = NULL;
  766 
  767 #if PCVT_SHOWKEYS
  768 u_char  keyboard_show           = 0;            /* normal display */
  769 #endif /* PCVT_SHOWKEYS */
  770 
  771 u_char  cursor_pos_valid        = 0;            /* sput left a valid position*/
  772 
  773 u_char  critical_scroll         = 0;            /* inside scrolling up */
  774 int     switch_page             = -1;           /* which page to switch to */
  775 
  776 #if PCVT_SCREENSAVER
  777 u_char  reset_screen_saver      = 1;            /* reset the saver next time */
  778 u_char  scrnsv_active           = 0;            /* active flag */
  779 #endif /* PCVT_SCREENSAVER */
  780 
  781 #ifdef XSERVER
  782 unsigned scrnsv_timeout         = 0;            /* initially off */
  783 u_char pcvt_kbd_raw             = 0;            /* keyboard sends scans */
  784 #endif /* XSERVER */
  785 
  786 u_char *saved_charsets[NVGAFONTS] = {0};        /* backup copy of fonts */
  787 
  788 /*---------------------------------------------------------------------------
  789 
  790         VT220 attributes -> internal emulator attributes conversion tables
  791 
  792         be careful when designing color combinations, because on
  793         EGA and VGA displays, bit 3 of the attribute byte is used
  794         for characterset switching, and is no longer available for
  795         foreground intensity (bold)!
  796 
  797 ---------------------------------------------------------------------------*/
  798 
  799 /* color displays */
  800 
  801 u_char sgr_tab_color[16] = {
  802 /*00*/  (BG_BLACK     | FG_LIGHTGREY),             /* normal               */
  803 /*01*/  (BG_BLUE      | FG_LIGHTGREY),             /* bold                 */
  804 /*02*/  (BG_BROWN     | FG_LIGHTGREY),             /* underline            */
  805 /*03*/  (BG_MAGENTA   | FG_LIGHTGREY),             /* bold+underline       */
  806 /*04*/  (BG_BLACK     | FG_LIGHTGREY | FG_BLINK),  /* blink                */
  807 /*05*/  (BG_BLUE      | FG_LIGHTGREY | FG_BLINK),  /* bold+blink           */
  808 /*06*/  (BG_BROWN     | FG_LIGHTGREY | FG_BLINK),  /* underline+blink      */
  809 /*07*/  (BG_MAGENTA   | FG_LIGHTGREY | FG_BLINK),  /* bold+underline+blink */
  810 /*08*/  (BG_LIGHTGREY | FG_BLACK),                 /* invers               */
  811 /*09*/  (BG_LIGHTGREY | FG_BLUE),                  /* bold+invers          */
  812 /*10*/  (BG_LIGHTGREY | FG_BROWN),                 /* underline+invers     */
  813 /*11*/  (BG_LIGHTGREY | FG_MAGENTA),               /* bold+underline+invers*/
  814 /*12*/  (BG_LIGHTGREY | FG_BLACK      | FG_BLINK), /* blink+invers         */
  815 /*13*/  (BG_LIGHTGREY | FG_BLUE       | FG_BLINK), /* bold+blink+invers    */
  816 /*14*/  (BG_LIGHTGREY | FG_BROWN      | FG_BLINK), /* underline+blink+invers*/
  817 /*15*/  (BG_LIGHTGREY | FG_MAGENTA    | FG_BLINK)  /*bold+underl+blink+invers*/
  818 };
  819 
  820 /* monochrome displays (VGA version, no intensity) */
  821 
  822 u_char sgr_tab_mono[16] = {
  823 /*00*/  (BG_BLACK     | FG_LIGHTGREY),            /* normal               */
  824 /*01*/  (BG_BLACK     | FG_UNDERLINE),            /* bold                 */
  825 /*02*/  (BG_BLACK     | FG_UNDERLINE),            /* underline            */
  826 /*03*/  (BG_BLACK     | FG_UNDERLINE),            /* bold+underline       */
  827 /*04*/  (BG_BLACK     | FG_LIGHTGREY | FG_BLINK), /* blink                */
  828 /*05*/  (BG_BLACK     | FG_UNDERLINE | FG_BLINK), /* bold+blink           */
  829 /*06*/  (BG_BLACK     | FG_UNDERLINE | FG_BLINK), /* underline+blink      */
  830 /*07*/  (BG_BLACK     | FG_UNDERLINE | FG_BLINK), /* bold+underline+blink */
  831 /*08*/  (BG_LIGHTGREY | FG_BLACK),                /* invers               */
  832 /*09*/  (BG_LIGHTGREY | FG_BLACK),                /* bold+invers          */
  833 /*10*/  (BG_LIGHTGREY | FG_BLACK),                /* underline+invers     */
  834 /*11*/  (BG_LIGHTGREY | FG_BLACK),                /* bold+underline+invers*/
  835 /*12*/  (BG_LIGHTGREY | FG_BLACK | FG_BLINK),     /* blink+invers         */
  836 /*13*/  (BG_LIGHTGREY | FG_BLACK | FG_BLINK),     /* bold+blink+invers    */
  837 /*14*/  (BG_LIGHTGREY | FG_BLACK | FG_BLINK),     /* underline+blink+invers*/
  838 /*15*/  (BG_LIGHTGREY | FG_BLACK | FG_BLINK)      /*bold+underl+blink+invers*/
  839 };
  840 
  841 /* monochrome displays (MDA version, with intensity) */
  842 
  843 u_char sgr_tab_imono[16] = {
  844 /*00*/  (BG_BLACK     | FG_LIGHTGREY),                /* normal               */
  845 /*01*/  (BG_BLACK     | FG_LIGHTGREY | FG_INTENSE),   /* bold                 */
  846 /*02*/  (BG_BLACK     | FG_UNDERLINE),                /* underline            */
  847 /*03*/  (BG_BLACK     | FG_UNDERLINE | FG_INTENSE),   /* bold+underline       */
  848 /*04*/  (BG_BLACK     | FG_LIGHTGREY | FG_BLINK),     /* blink                */
  849 /*05*/  (BG_BLACK     | FG_LIGHTGREY | FG_INTENSE | FG_BLINK), /* bold+blink  */
  850 /*06*/  (BG_BLACK     | FG_UNDERLINE | FG_BLINK),     /* underline+blink      */
  851 /*07*/  (BG_BLACK     | FG_UNDERLINE | FG_BLINK | FG_INTENSE), /* bold+underline+blink */
  852 /*08*/  (BG_LIGHTGREY | FG_BLACK),                    /* invers               */
  853 /*09*/  (BG_LIGHTGREY | FG_BLACK | FG_INTENSE),       /* bold+invers          */
  854 /*10*/  (BG_LIGHTGREY | FG_BLACK),                    /* underline+invers     */
  855 /*11*/  (BG_LIGHTGREY | FG_BLACK | FG_INTENSE),       /* bold+underline+invers*/
  856 /*12*/  (BG_LIGHTGREY | FG_BLACK | FG_BLINK),         /* blink+invers         */
  857 /*13*/  (BG_LIGHTGREY | FG_BLACK | FG_BLINK | FG_INTENSE),/* bold+blink+invers*/
  858 /*14*/  (BG_LIGHTGREY | FG_BLACK | FG_BLINK),         /* underline+blink+invers*/
  859 /*15*/  (BG_LIGHTGREY | FG_BLACK | FG_BLINK | FG_INTENSE) /* bold+underl+blink+invers */
  860 };
  861 
  862 u_char  pcvt_kbd_fifo[PCVT_KBD_FIFO_SZ];
  863 int     pcvt_kbd_rptr = 0;
  864 int     pcvt_kbd_count= 0;
  865 
  866 #else   /* ! MAIN */
  867 
  868 extern u_char           pcvt_kbd_fifo[];
  869 extern int              pcvt_kbd_rptr;
  870 extern int              pcvt_kbd_count;
  871 
  872 extern u_char           vga_type;
  873 extern struct tty       *pcvt_ttyp;
  874 extern video_state      *vsp;
  875 
  876 #ifdef XSERVER
  877 extern int              vt_switch_pending;
  878 #endif /* XSERVER */
  879 
  880 extern u_int            addr_6845;
  881 extern u_char           do_initialization;
  882 extern u_char           pcvt_is_console;
  883 extern u_char           bgansitopc[];
  884 extern u_char           fgansitopc[];
  885 extern u_char           shift_down;
  886 extern u_char           ctrl_down;
  887 extern u_char           meta_down;
  888 extern u_char           altgr_down;
  889 extern u_char           kbrepflag;
  890 extern u_char           adaptor_type;
  891 extern u_char           current_video_screen;
  892 extern u_char           totalfonts;
  893 extern u_char           totalscreens;
  894 extern u_char           chargen_access;
  895 extern u_char           keyboard_type;
  896 extern u_char           can_do_132col;
  897 extern u_char           vga_family;
  898 extern u_char           keyboard_is_initialized;
  899 extern u_char           kbd_polling;
  900 extern u_char           reset_keyboard;
  901 extern keyboard_t       *kbd;
  902 
  903 #if PCVT_SHOWKEYS
  904 extern u_char           keyboard_show;
  905 #endif /* PCVT_SHOWKEYS */
  906 
  907 extern  u_char          cursor_pos_valid;
  908 
  909 extern  u_char          critical_scroll;
  910 extern  int             switch_page;
  911 
  912 #if PCVT_SCREENSAVER
  913 extern  u_char          reset_screen_saver;
  914 extern  u_char          scrnsv_active;
  915 #endif /* PCVT_SCREENSAVER */
  916 
  917 extern u_char           sgr_tab_color[];
  918 extern u_char           sgr_tab_mono[];
  919 extern u_char           sgr_tab_imono[];
  920 
  921 #ifdef XSERVER
  922 extern unsigned         scrnsv_timeout;
  923 extern u_char           pcvt_xmode;
  924 extern u_char           pcvt_kbd_raw;
  925 #endif /* XSERVER */
  926 
  927 extern u_char           *saved_charsets[NVGAFONTS];
  928 
  929 #endif /* MAIN */
  930 
  931 /*===========================================================================*
  932  *      forward declarations
  933  *===========================================================================*/
  934 
  935 void    async_update ( void *arg );
  936 void    clr_parms ( struct video_state *svsp );
  937 void    cons_highlight ( void );
  938 void    cons_normal ( void );
  939 void    dprintf ( unsigned flgs, const char *fmt, ... );
  940 int     egavga_test ( void );
  941 void    fkl_off ( struct video_state *svsp );
  942 void    fkl_on ( struct video_state *svsp );
  943 
  944 #ifdef XSERVER
  945 void    get_usl_keymap( keymap_t *map );
  946 #endif
  947 
  948 void    init_sfkl ( struct video_state *svsp );
  949 void    init_ufkl ( struct video_state *svsp );
  950 int     kbdioctl ( dev_t dev, int cmd, caddr_t data, int flag );
  951 void    kbd_code_init ( void );
  952 void    kbd_code_init1 ( void );
  953 
  954 #if PCVT_SCANSET > 1
  955 void    kbd_emulate_pc(int do_emulation);
  956 #endif
  957 
  958 void    loadchar ( int fontset, int character, int char_scanlines, u_char *char_table );
  959 void    mda2egaorvga ( void );
  960 void    pcvt_rint(int unit);
  961 
  962 #if PCVT_SCREENSAVER
  963 void    pcvt_scrnsv_reset ( void );
  964 #ifdef XSERVER
  965 void    pcvt_set_scrnsv_tmo ( int );
  966 #endif
  967 #endif
  968 
  969 void    reallocate_scrollbuffer ( struct video_state *svsp, int pages );
  970 
  971 #ifdef XSERVER
  972 void    reset_usl_modes (struct video_state *vsx);
  973 #endif
  974 
  975 void    roll_up ( struct video_state *svsp, int n );
  976 void    select_vga_charset ( int vga_charset );
  977 void    set_2ndcharset ( void );
  978 void    set_charset ( struct video_state *svsp, int curvgacs );
  979 void    set_emulation_mode ( struct video_state *svsp, int mode );
  980 void    set_screen_size ( struct video_state *svsp, int size );
  981 u_char  *sgetc ( int noblock );
  982 void    sixel_vga ( struct sixels *charsixel, u_char *charvga );
  983 void    sput ( u_char *s, int attrib, int len, int page );
  984 
  985 #ifdef XSERVER
  986 void    switch_screen ( int n, int oldgrafx, int newgrafx );
  987 #endif
  988 
  989 void    swritefkl ( int num, u_char *string, struct video_state *svsp );
  990 void    sw_cursor ( int onoff );
  991 void    sw_sfkl ( struct video_state *svsp );
  992 void    sw_ufkl ( struct video_state *svsp );
  993 void    toggl_24l ( struct video_state *svsp );
  994 void    toggl_awm ( struct video_state *svsp );
  995 void    toggl_bell ( struct video_state *svsp );
  996 void    toggl_columns ( struct video_state *svsp );
  997 void    toggl_dspf ( struct video_state *svsp );
  998 void    toggl_sevenbit ( struct video_state *svsp );
  999 void    update_hp ( struct video_state *svsp );
 1000 void    update_led ( void );
 1001 
 1002 #ifdef XSERVER
 1003 int     usl_vt_ioctl (dev_t dev, int cmd, caddr_t data, int flag, struct thread *);
 1004 #endif
 1005 
 1006 void    vga10_vga10 ( u_char *invga, u_char *outvga );
 1007 void    vga10_vga14 ( u_char *invga, u_char *outvga );
 1008 void    vga10_vga16 ( u_char *invga, u_char *outvga );
 1009 void    vga10_vga8 ( u_char *invga, u_char *outvga );
 1010 int     vgaioctl ( dev_t dev, int cmd, caddr_t data, int flag );
 1011 
 1012 #ifdef XSERVER
 1013 int     vgapage ( int n );
 1014 #else
 1015 void    vgapage ( int n );
 1016 #endif
 1017 
 1018 void    vgapaletteio ( unsigned idx, struct rgb *val, int writeit );
 1019 char    *vga_string ( int number );
 1020 u_char  vga_chipset ( void );
 1021 int     vga_col ( struct video_state *svsp, int cols );
 1022 void    vga_move_charset ( unsigned n, unsigned char *b, int save_it);
 1023 void    vga_screen_off ( void );
 1024 void    vga_screen_on ( void );
 1025 int     vga_test ( void );
 1026 
 1027 #ifdef XSERVER
 1028 int     vt_activate ( int newscreen );
 1029 #endif
 1030 
 1031 void    vt_aln ( struct video_state *svsp );
 1032 void    vt_clearudk ( struct video_state *svsp );
 1033 void    vt_clreol ( struct video_state *svsp );
 1034 void    vt_clreos ( struct video_state *svsp );
 1035 void    vt_clrtab ( struct video_state *svsp );
 1036 int     vt_col ( struct video_state *svsp, int cols );
 1037 void    vt_coldmalloc ( void );
 1038 void    vt_cub ( struct video_state *svsp );
 1039 void    vt_cud ( struct video_state *svsp );
 1040 void    vt_cuf ( struct video_state *svsp );
 1041 void    vt_curadr ( struct video_state *svsp );
 1042 void    vt_cuu ( struct video_state *svsp );
 1043 void    vt_da ( struct video_state *svsp );
 1044 void    vt_dch ( struct video_state *svsp );
 1045 void    vt_dcsentry ( int ch, struct video_state *svsp );
 1046 void    vt_designate ( struct video_state *svsp);
 1047 void    vt_dl ( struct video_state *svsp );
 1048 void    vt_dld ( struct video_state *svsp );
 1049 void    vt_dsr ( struct video_state *svsp );
 1050 void    vt_ech ( struct video_state *svsp );
 1051 void    vt_ic ( struct video_state *svsp );
 1052 void    vt_il ( struct video_state *svsp );
 1053 void    vt_ind ( struct video_state *svsp );
 1054 void    vt_initsel ( struct video_state *svsp );
 1055 void    vt_keyappl ( struct video_state *svsp );
 1056 void    vt_keynum ( struct video_state *svsp );
 1057 void    vt_mc ( struct video_state *svsp );
 1058 void    vt_nel ( struct video_state *svsp );
 1059 void    vt_rc ( struct video_state *svsp );
 1060 void    vt_reqtparm ( struct video_state *svsp );
 1061 void    vt_reset_ansi ( struct video_state *svsp );
 1062 void    vt_reset_dec_priv_qm ( struct video_state *svsp );
 1063 void    vt_ri ( struct video_state *svsp );
 1064 void    vt_ris ( struct video_state *svsp );
 1065 void    vt_sc ( struct video_state *svsp );
 1066 void    vt_sca ( struct video_state *svsp );
 1067 void    vt_sd ( struct video_state *svsp );
 1068 void    vt_sed ( struct video_state *svsp );
 1069 void    vt_sel ( struct video_state *svsp );
 1070 void    vt_set_ansi ( struct video_state *svsp );
 1071 void    vt_set_dec_priv_qm ( struct video_state *svsp );
 1072 void    vt_sgr ( struct video_state *svsp );
 1073 void    vt_stbm ( struct video_state *svsp );
 1074 void    vt_str ( struct video_state *svsp );
 1075 void    vt_su ( struct video_state *svsp );
 1076 void    vt_tst ( struct video_state *svsp );
 1077 void    vt_udk ( struct video_state *svsp );
 1078 
 1079 
 1080 #ifdef PCVT_INCLUDE_VT_SELATTR
 1081 /*---------------------------------------------------------------------------*
 1082  *      set selective attribute if appropriate
 1083  *---------------------------------------------------------------------------*/
 1084 #define INT_BITS        (sizeof(unsigned int) * 8)
 1085 #define INT_INDEX(n)    ((n) / INT_BITS)
 1086 #define BIT_INDEX(n)    ((n) % INT_BITS)
 1087 
 1088 static __inline void
 1089 vt_selattr(struct video_state *svsp)
 1090 {
 1091         int i;
 1092 
 1093         i = (svsp->Crtat + svsp->cur_offset) - svsp->Crtat;
 1094 
 1095         if(svsp->selchar)
 1096                 svsp->decsca[INT_INDEX(i)] |=  (1 << BIT_INDEX(i));
 1097         else
 1098                 svsp->decsca[INT_INDEX(i)] &= ~(1 << BIT_INDEX(i));
 1099 }
 1100 
 1101 #endif /* PCVT_INCLUDE_VT_SELATTR */
 1102 
 1103 /*---------------------------------- E O F ----------------------------------*/

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