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smg.c revision 1.15.4.1 
      1 /*	$NetBSD: smg.c,v 1.15.4.1 1999/06/21 01:03:47 thorpej Exp $ */
      2 /*
      3  * Copyright (c) 1998 Ludd, University of Lule}, Sweden.
      4  * All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. All advertising materials mentioning features or use of this software
     15  *    must display the following acknowledgement:
     16  *	This product includes software developed at Ludd, University of
     17  *	Lule}, Sweden and its contributors.
     18  * 4. The name of the author may not be used to endorse or promote products
     19  *    derived from this software without specific prior written permission
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 
     33 #include <sys/param.h>
     34 #include <sys/device.h>
     35 #include <sys/systm.h>
     36 #include <sys/time.h>
     37 #include <sys/malloc.h>
     38 #include <sys/conf.h>
     39 #include <sys/kernel.h>
     40 
     41 #include <dev/cons.h>
     42 
     43 #include <dev/wscons/wsdisplayvar.h>
     44 #include <dev/wscons/wsconsio.h>
     45 #include <dev/wscons/wscons_callbacks.h>
     46 
     47 #include <machine/vsbus.h>
     48 #include <machine/sid.h>
     49 #include <machine/cpu.h>
     50 #include <machine/ka420.h>
     51 
     52 #include "lkc.h"
     53 
     54 #define SM_COLS		128	/* char width of screen */
     55 #define SM_ROWS		57	/* rows of char on screen */
     56 #define SM_CHEIGHT	15	/* lines a char consists of */
     57 #define SM_NEXTROW	(SM_COLS * SM_CHEIGHT)
     58 
     59 static	int smg_match __P((struct device *, struct cfdata *, void *));
     60 static	void smg_attach __P((struct device *, struct device *, void *));
     61 
     62 struct	smg_softc {
     63 	struct	device ss_dev;
     64 };
     65 
     66 struct cfattach smg_ca = {
     67 	sizeof(struct smg_softc), smg_match, smg_attach,
     68 };
     69 
     70 static void	smg_cursor __P((void *, int, int, int));
     71 static int	smg_mapchar __P((void *, int, unsigned int *));
     72 static void	smg_putchar __P((void *, int, int, u_int, long));
     73 static void	smg_copycols __P((void *, int, int, int,int));
     74 static void	smg_erasecols __P((void *, int, int, int, long));
     75 static void	smg_copyrows __P((void *, int, int, int));
     76 static void	smg_eraserows __P((void *, int, int, long));
     77 static int	smg_alloc_attr __P((void *, int, int, int, long *));
     78 
     79 const struct wsdisplay_emulops smg_emulops = {
     80 	smg_cursor,
     81 	smg_mapchar,
     82 	smg_putchar,
     83 	smg_copycols,
     84 	smg_erasecols,
     85 	smg_copyrows,
     86 	smg_eraserows,
     87 	smg_alloc_attr
     88 };
     89 
     90 const struct wsscreen_descr smg_stdscreen = {
     91 	"128x57", SM_COLS, SM_ROWS,
     92 	&smg_emulops,
     93 	8, SM_CHEIGHT,
     94 	WSSCREEN_UNDERLINE|WSSCREEN_REVERSE,
     95 };
     96 
     97 const struct wsscreen_descr *_smg_scrlist[] = {
     98 	&smg_stdscreen,
     99 };
    100 
    101 const struct wsscreen_list smg_screenlist = {
    102 	sizeof(_smg_scrlist) / sizeof(struct wsscreen_descr *),
    103 	_smg_scrlist,
    104 };
    105 
    106 static	caddr_t	sm_addr;
    107 
    108 extern char q_font[];
    109 #define QCHAR(c) (c < 32 ? 32 : (c > 127 ? c - 66 : c - 32))
    110 #define QFONT(c,line)	q_font[QCHAR(c) * 15 + line]
    111 #define	SM_ADDR(row, col, line) \
    112 	sm_addr[col + (row * SM_CHEIGHT * SM_COLS) + line * SM_COLS]
    113 
    114 
    115 static int	smg_ioctl __P((void *, u_long, caddr_t, int, struct proc *));
    116 static int	smg_mmap __P((void *, off_t, int));
    117 static int	smg_alloc_screen __P((void *, const struct wsscreen_descr *,
    118 				      void **, int *, int *, long *));
    119 static void	smg_free_screen __P((void *, void *));
    120 static void	smg_show_screen __P((void *, void *));
    121 static void	smg_crsr_blink __P((void *));
    122 
    123 const struct wsdisplay_accessops smg_accessops = {
    124 	smg_ioctl,
    125 	smg_mmap,
    126 	smg_alloc_screen,
    127 	smg_free_screen,
    128 	smg_show_screen,
    129 	0 /* load_font */
    130 };
    131 
    132 struct	smg_screen {
    133 	int	ss_curx;
    134 	int	ss_cury;
    135 	u_char	ss_image[SM_ROWS][SM_COLS];	/* Image of current screen */
    136 	u_char	ss_attr[SM_ROWS][SM_COLS];	/* Reversed etc... */
    137 };
    138 
    139 static	struct smg_screen smg_conscreen;
    140 static	struct smg_screen *curscr;
    141 
    142 int
    143 smg_match(parent, match, aux)
    144 	struct device *parent;
    145 	struct cfdata *match;
    146 	void *aux;
    147 {
    148 	struct vsbus_attach_args *va = aux;
    149 	volatile short *curcmd = (short *)va->va_addr;
    150 	volatile short *cfgtst = (short *)vax_map_physmem(VS_CFGTST, 1);
    151 	short tmp, tmp2;
    152 
    153 	/*
    154 	 * Try to find the cursor chip by testing the flip-flop.
    155 	 * If nonexistent, no glass tty.
    156 	 */
    157 	curcmd[0] = 0x7fff;
    158 	DELAY(300000);
    159 	tmp = cfgtst[0];
    160 	curcmd[0] = 0x8000;
    161 	DELAY(300000);
    162 	tmp2 = cfgtst[0];
    163 	vax_unmap_physmem((vaddr_t)cfgtst, 1);
    164 
    165 	if (tmp2 != tmp)
    166 		return 20; /* Using periodic interrupt */
    167 	else
    168 		return 0;
    169 }
    170 
    171 void
    172 smg_attach(parent, self, aux)
    173 	struct device *parent, *self;
    174 	void *aux;
    175 {
    176 	struct wsemuldisplaydev_attach_args aa;
    177 
    178 	printf("\n");
    179 	sm_addr = (caddr_t)vax_map_physmem(SMADDR, (SMSIZE/VAX_NBPG));
    180 	if (sm_addr == 0) {
    181 		printf("%s: Couldn't alloc graphics memory.\n", self->dv_xname);
    182 		return;
    183 	}
    184 	curscr = &smg_conscreen;
    185 	aa.console = !(vax_confdata & 0x20);
    186 	aa.scrdata = &smg_screenlist;
    187 	aa.accessops = &smg_accessops;
    188 	timeout(smg_crsr_blink, 0, hz/2);
    189 
    190 	config_found(self, &aa, wsemuldisplaydevprint);
    191 }
    192 
    193 static	u_char *cursor;
    194 static	int cur_on;
    195 
    196 static void
    197 smg_crsr_blink(arg)
    198 	void *arg;
    199 {
    200 	if (cur_on)
    201 		*cursor ^= 255;
    202 	timeout(smg_crsr_blink, 0, hz/2);
    203 }
    204 
    205 void
    206 smg_cursor(id, on, row, col)
    207 	void *id;
    208 	int on, row, col;
    209 {
    210 	struct smg_screen *ss = id;
    211 
    212 	if (ss == curscr) {
    213 		SM_ADDR(ss->ss_cury, ss->ss_curx, 14) =
    214 		    QFONT(ss->ss_image[ss->ss_cury][ss->ss_curx], 14);
    215 		cursor = &SM_ADDR(row, col, 14);
    216 		if ((cur_on = on))
    217 			*cursor ^= 255;
    218 	}
    219 	ss->ss_curx = col;
    220 	ss->ss_cury = row;
    221 }
    222 
    223 int
    224 smg_mapchar(id, uni, index)
    225 	void *id;
    226 	int uni;
    227 	unsigned int *index;
    228 {
    229 	if (uni < 256) {
    230 		*index = uni;
    231 		return (5);
    232 	}
    233 	*index = ' ';
    234 	return (0);
    235 }
    236 
    237 static void
    238 smg_putchar(id, row, col, c, attr)
    239 	void *id;
    240 	int row, col;
    241 	u_int c;
    242 	long attr;
    243 {
    244 	struct smg_screen *ss = id;
    245 	int i;
    246 
    247 	c &= 0xff;
    248 
    249 	ss->ss_image[row][col] = c;
    250 	ss->ss_attr[row][col] = attr;
    251 	if (ss != curscr)
    252 		return;
    253 	for (i = 0; i < 15; i++) {
    254 		unsigned char ch = QFONT(c, i);
    255 
    256 		SM_ADDR(row, col, i) = (attr & WSATTR_REVERSE ? ~ch : ch);
    257 
    258 	}
    259 	if (attr & WSATTR_UNDERLINE)
    260 		SM_ADDR(row, col, 14) ^= SM_ADDR(row, col, 14);
    261 }
    262 
    263 /*
    264  * copies columns inside a row.
    265  */
    266 static void
    267 smg_copycols(id, row, srccol, dstcol, ncols)
    268 	void *id;
    269 	int row, srccol, dstcol, ncols;
    270 {
    271 	struct smg_screen *ss = id;
    272 	int i;
    273 
    274 	bcopy(&ss->ss_image[row][srccol], &ss->ss_image[row][dstcol], ncols);
    275 	bcopy(&ss->ss_attr[row][srccol], &ss->ss_attr[row][dstcol], ncols);
    276 	if (ss != curscr)
    277 		return;
    278 	for (i = 0; i < SM_CHEIGHT; i++)
    279 		bcopy(&SM_ADDR(row,srccol, i), &SM_ADDR(row, dstcol, i),ncols);
    280 }
    281 
    282 /*
    283  * Erases a bunch of chars inside one row.
    284  */
    285 static void
    286 smg_erasecols(id, row, startcol, ncols, fillattr)
    287 	void *id;
    288 	int row, startcol, ncols;
    289 	long fillattr;
    290 {
    291 	struct smg_screen *ss = id;
    292 	int i;
    293 
    294 	bzero(&ss->ss_image[row][startcol], ncols);
    295 	bzero(&ss->ss_attr[row][startcol], ncols);
    296 	if (ss != curscr)
    297 		return;
    298 	for (i = 0; i < SM_CHEIGHT; i++)
    299 		bzero(&SM_ADDR(row, startcol, i), ncols);
    300 }
    301 
    302 static void
    303 smg_copyrows(id, srcrow, dstrow, nrows)
    304 	void *id;
    305 	int srcrow, dstrow, nrows;
    306 {
    307 	struct smg_screen *ss = id;
    308 	int frows;
    309 
    310 	bcopy(&ss->ss_image[srcrow][0], &ss->ss_image[dstrow][0],
    311 	    nrows * SM_COLS);
    312 	bcopy(&ss->ss_attr[srcrow][0], &ss->ss_attr[dstrow][0],
    313 	    nrows * SM_COLS);
    314 	if (ss != curscr)
    315 		return;
    316 	if (nrows > 25) {
    317 		frows = nrows >> 1;
    318 		if (srcrow > dstrow) {
    319 			bcopy(&sm_addr[(srcrow * SM_NEXTROW)],
    320 			    &sm_addr[(dstrow * SM_NEXTROW)],
    321 			    frows * SM_NEXTROW);
    322 			bcopy(&sm_addr[((srcrow + frows) * SM_NEXTROW)],
    323 			    &sm_addr[((dstrow + frows) * SM_NEXTROW)],
    324 			    (nrows - frows) * SM_NEXTROW);
    325 		} else {
    326 			bcopy(&sm_addr[((srcrow + frows) * SM_NEXTROW)],
    327 			    &sm_addr[((dstrow + frows) * SM_NEXTROW)],
    328 			    (nrows - frows) * SM_NEXTROW);
    329 			bcopy(&sm_addr[(srcrow * SM_NEXTROW)],
    330 			    &sm_addr[(dstrow * SM_NEXTROW)],
    331 			    frows * SM_NEXTROW);
    332 		}
    333 	} else
    334 		bcopy(&sm_addr[(srcrow * SM_NEXTROW)],
    335 		    &sm_addr[(dstrow * SM_NEXTROW)], nrows * SM_NEXTROW);
    336 }
    337 
    338 static void
    339 smg_eraserows(id, startrow, nrows, fillattr)
    340 	void *id;
    341 	int startrow, nrows;
    342 	long fillattr;
    343 {
    344 	struct smg_screen *ss = id;
    345 	int frows;
    346 
    347 	bzero(&ss->ss_image[startrow][0], nrows * SM_COLS);
    348 	bzero(&ss->ss_attr[startrow][0], nrows * SM_COLS);
    349 	if (ss != curscr)
    350 		return;
    351 	if (nrows > 25) {
    352 		frows = nrows >> 1;
    353 		bzero(&sm_addr[(startrow * SM_NEXTROW)], frows * SM_NEXTROW);
    354 		bzero(&sm_addr[((startrow + frows) * SM_NEXTROW)],
    355 		    (nrows - frows) * SM_NEXTROW);
    356 	} else
    357 		bzero(&sm_addr[(startrow * SM_NEXTROW)], nrows * SM_NEXTROW);
    358 }
    359 
    360 static int
    361 smg_alloc_attr(id, fg, bg, flags, attrp)
    362 	void *id;
    363 	int fg, bg;
    364 	int flags;
    365 	long *attrp;
    366 {
    367 	*attrp = flags;
    368 	return 0;
    369 }
    370 
    371 int
    372 smg_ioctl(v, cmd, data, flag, p)
    373 	void *v;
    374 	u_long cmd;
    375 	caddr_t data;
    376 	int flag;
    377 	struct proc *p;
    378 {
    379 	struct wsdisplay_fbinfo fb;
    380 
    381 	switch (cmd) {
    382 	case WSDISPLAYIO_GTYPE:
    383 		*(u_int *)data = WSDISPLAY_TYPE_PM_MONO;
    384 		break;
    385 
    386 	case WSDISPLAYIO_GINFO:
    387 		fb.height = 864;
    388 		fb.width = 1024;
    389 		return copyout(&fb, data, sizeof(struct wsdisplay_fbinfo));
    390 
    391 
    392 	default:
    393 		return -1;
    394 	}
    395 	return 0;
    396 }
    397 
    398 static int
    399 smg_mmap(v, offset, prot)
    400 	void *v;
    401 	off_t offset;
    402 	int prot;
    403 {
    404 	if (offset >= SMSIZE || offset < 0)
    405 		return -1;
    406 	return (SMADDR + offset) >> CLSHIFT;
    407 }
    408 
    409 int
    410 smg_alloc_screen(v, type, cookiep, curxp, curyp, defattrp)
    411 	void *v;
    412 	const struct wsscreen_descr *type;
    413 	void **cookiep;
    414 	int *curxp, *curyp;
    415 	long *defattrp;
    416 {
    417 	*cookiep = malloc(sizeof(struct smg_screen), M_DEVBUF, M_WAITOK);
    418 	bzero(*cookiep, sizeof(struct smg_screen));
    419 	*curxp = *curyp = *defattrp = 0;
    420 	return 0;
    421 }
    422 
    423 void
    424 smg_free_screen(v, cookie)
    425 	void *v;
    426 	void *cookie;
    427 {
    428 }
    429 
    430 void
    431 smg_show_screen(v, cookie)
    432 	void *v;
    433 	void *cookie;
    434 {
    435 	struct smg_screen *ss = cookie;
    436 	int row, col, line;
    437 
    438 	if (ss == curscr)
    439 		return;
    440 
    441 	for (row = 0; row < SM_ROWS; row++)
    442 		for (line = 0; line < SM_CHEIGHT; line++) {
    443 			for (col = 0; col < SM_COLS; col++) {
    444 				u_char s, c = ss->ss_image[row][col];
    445 
    446 				if (c < 32)
    447 					c = 32;
    448 				s = QFONT(c, line);
    449 				if (ss->ss_attr[row][col] & WSATTR_REVERSE)
    450 					s ^= 255;
    451 				SM_ADDR(row, col, line) = s;
    452 			}
    453 			if (ss->ss_attr[row][col] & WSATTR_UNDERLINE)
    454 				SM_ADDR(row, col, line) = 255;
    455 		}
    456 	cursor = &sm_addr[(ss->ss_cury * SM_CHEIGHT * SM_COLS) + ss->ss_curx +
    457 	    ((SM_CHEIGHT - 1) * SM_COLS)];
    458 	curscr = ss;
    459 }
    460 
    461 cons_decl(smg);
    462 
    463 #define WSCONSOLEMAJOR 68
    464 
    465 void
    466 smgcninit(cndev)
    467 	struct	consdev *cndev;
    468 {
    469 	extern void lkccninit __P((struct consdev *));
    470 	extern int lkccngetc __P((dev_t));
    471 	/* Clear screen */
    472 	memset(sm_addr, 0, 128*864);
    473 
    474 	curscr = &smg_conscreen;
    475 	wsdisplay_cnattach(&smg_stdscreen, &smg_conscreen, 0, 0, 0);
    476 	cn_tab->cn_dev = makedev(WSCONSOLEMAJOR, 0);
    477 #if NLKC
    478 	lkccninit(cndev);
    479 	wsdisplay_set_cons_kbd(lkccngetc, nullcnpollc);
    480 #endif
    481 }
    482 
    483 int smgprobe(void);
    484 int
    485 smgprobe()
    486 {
    487 	switch (vax_boardtype) {
    488 	case VAX_BTYP_410:
    489 	case VAX_BTYP_420:
    490 	case VAX_BTYP_43:
    491 		if ((vax_confdata & KA420_CFG_L3CON) ||
    492 		    (vax_confdata & KA420_CFG_MULTU))
    493 			break; /* doesn't use graphics console */
    494 		sm_addr = (caddr_t)vax_map_physmem(SMADDR, (SMSIZE/VAX_NBPG));
    495 		if (sm_addr == 0)
    496 			return 0;
    497 
    498 		return 1;
    499 
    500 	default:
    501 		break;
    502 	}
    503 	return 0;
    504 }
    505