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      1 /*	$NetBSD: ite_ul.c,v 1.17 2023/08/28 09:22:26 andvar Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 1995 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Ignatios Souvatzis.
      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  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 __KERNEL_RCSID(0, "$NetBSD: ite_ul.c,v 1.17 2023/08/28 09:22:26 andvar Exp $");
     34 
     35 #include "grful.h"
     36 #if NGRFUL > 0
     37 
     38 #include <sys/param.h>
     39 #include <sys/conf.h>
     40 #include <sys/proc.h>
     41 #include <sys/device.h>
     42 #include <sys/ioctl.h>
     43 #include <sys/tty.h>
     44 #include <sys/systm.h>
     45 #include <dev/cons.h>
     46 #include <machine/cpu.h>
     47 #include <amiga/amiga/device.h>
     48 #include <amiga/amiga/isr.h>
     49 #include <amiga/dev/itevar.h>
     50 #include <amiga/dev/grfioctl.h>
     51 #include <amiga/dev/grfvar.h>
     52 #include <amiga/dev/grf_ulreg.h>
     53 
     54 #ifndef KFONT_CUSTOM
     55 #ifdef KFONT_8X11
     56 #define kernel_font_width       kernel_font_width_8x11
     57 #define kernel_font_height      kernel_font_height_8x11
     58 #define kernel_font_baseline    kernel_font_baseline_8x11
     59 #define kernel_font_boldsmear   kernel_font_boldsmear_8x11
     60 #define kernel_font_lo  kernel_font_lo_8x11
     61 #define kernel_font_hi  kernel_font_hi_8x11
     62 #define kernel_font     kernel_font_8x11
     63 #define kernel_cursor   kernel_cursor_8x11
     64 #else
     65 #define kernel_font_width       kernel_font_width_8x8
     66 #define kernel_font_height      kernel_font_height_8x8
     67 #define kernel_font_baseline    kernel_font_baseline_8x8
     68 #define kernel_font_boldsmear   kernel_font_boldsmear_8x8
     69 #define kernel_font_lo  kernel_font_lo_8x8
     70 #define kernel_font_hi  kernel_font_hi_8x8
     71 #define kernel_font     kernel_font_8x8
     72 #define kernel_cursor   kernel_cursor_8x8
     73 #endif
     74 #endif
     75 
     76 extern u_int8_t kernel_font_width, kernel_font_height, kernel_font_baseline;
     77 extern short  kernel_font_boldsmear;
     78 extern u_int8_t kernel_font_lo, kernel_font_hi;
     79 extern u_int8_t kernel_font[], kernel_cursor[];
     80 
     81 
     82 #ifdef UL_DEBUG
     83 #define gsp_out(ba,cmd,len) gsp_dump(cmd,len); gsp_write(ba,cmd,len)
     84 #else
     85 #define gsp_out(ba,cmd,len) gsp_write(ba,cmd,len)
     86 #endif
     87 
     88 int ulowell_console = 1;
     89 
     90 void ulowell_cursor(struct ite_softc *, int);
     91 void ulowell_scroll(struct ite_softc *, int, int, int, int);
     92 void ulowell_deinit(struct ite_softc *);
     93 void ulowell_clear(struct ite_softc *, int, int, int, int);
     94 void ulowell_putc(struct ite_softc *, int, int, int, int);
     95 void ulowell_init(struct ite_softc *);
     96 
     97 #ifdef UL_DEBUG
     98 void gsp_dump(u_int16_t *, int);
     99 #endif
    100 
    101 /* Text always on overlay plane, so: */
    102 
    103 #define UL_FG(ip)  0xFFFF
    104 #define UL_BG(ip)  0x0000
    105 
    106 /*
    107  * this function is called from grf_ul to init the grf_softc->g_conpri
    108  * field each time a ulowell board is attached.
    109  */
    110 int
    111 grful_cnprobe(void)
    112 {
    113 	static int done;
    114 	int uv;
    115 
    116 	if (ulowell_console && done == 0)
    117 		uv = CN_INTERNAL;
    118 	else
    119 		uv = CN_NORMAL;
    120 	done = 1;
    121 	return(uv);
    122 }
    123 
    124 /*
    125  * init the required fields in the grf_softc struct for a
    126  * grf to function as an ite.
    127  */
    128 void
    129 grful_iteinit(struct grf_softc *gp)
    130 {
    131 	gp->g_iteinit = ulowell_init;
    132 	gp->g_itedeinit = ulowell_deinit;
    133 	gp->g_iteclear = ulowell_clear;
    134 	gp->g_iteputc = ulowell_putc;
    135 	gp->g_itescroll = ulowell_scroll;
    136 	gp->g_itecursor = ulowell_cursor;
    137 }
    138 
    139 void
    140 ulowell_init(struct ite_softc *ip)
    141 {
    142 	volatile struct gspregs *ba;
    143 
    144 	u_int16_t *sp;
    145 	u_int16_t cmd[8];
    146 
    147 	int i;
    148 
    149 	ba = (volatile struct gspregs *) ip->grf->g_regkva;
    150 
    151 	ip->font     = kernel_font;
    152 	ip->font_lo  = kernel_font_lo;
    153 	ip->font_hi  = kernel_font_hi;
    154 	ip->ftwidth  = kernel_font_width;
    155 	ip->ftheight = kernel_font_height;
    156 	ip->ftbaseline = kernel_font_baseline;
    157 	ip->ftboldsmear = kernel_font_boldsmear;
    158 
    159 	/* upload font data */
    160 
    161 	ba->ctrl = LBL|INCW;
    162 	ba->hstadrh = 0xFFA2;
    163 	ba->hstadrl = 0x0200;
    164 
    165 	ba->data = 0x0000;
    166 	ba->data = 0xFFA3;
    167 	ba->data = ip->ftwidth;
    168 	ba->data = ip->ftheight;
    169 	ba->data = ip->ftbaseline;
    170 	ba->data = 1;
    171 	ba->data = ip->font_lo;
    172 	ba->data = ip->font_hi;
    173 	ba->data = ip->ftboldsmear;
    174 
    175 	ba->hstadrh = 0xFFA3;
    176 	ba->hstadrl = 0x0000;
    177 
    178 	/*
    179 	 * font has to be word aligned and padded to word boundary.
    180 	 * 8 bit wide fonts will be byte swapped in the bit swap
    181 	 * routine.
    182 	 */
    183 
    184 	i = (ip->font_hi - ip->font_lo + 1) * ip->ftheight;
    185 	if (ip->ftwidth <= 8)
    186 		i /= 2;
    187 	for (sp = (u_int16_t *)ip->font; i>0; --i,++sp) {
    188 		ba->data = *sp;
    189 	}
    190 
    191 	/* bitwise mirror the font: */
    192 
    193 	cmd[0] = GCMD_FNTMIR;
    194 	gsp_out(ba, cmd, 1);
    195 
    196 	ip->priv = NULL;
    197 	ip->cursor_opt = 0;
    198 
    199 	if (ip->ftwidth >0 && ip->ftheight > 0) {
    200 		ip->cols = ip->grf->g_display.gd_dwidth  / ip->ftwidth;
    201 		ip->rows = ip->grf->g_display.gd_dheight / ip->ftheight;
    202 	}
    203 
    204 	ulowell_clear(ip, 0, 0, ip->rows, ip->cols);
    205 
    206 	/*
    207 	 * switch overlay plane 0 on again, in case s.b. did a GM_GRFOVOFF
    208 	 * XXX maybe this should be done on each output, by the TMS code?
    209 	 * what happens on panic?
    210 
    211 	ba->ctrl = LBL;
    212 	GSPSETHADRS(ba, 0xFE800000);
    213 	ba->data = 0;
    214 	ba->hstadrl = 0x0020;
    215 	gup->gus_ovslct |= 1;
    216 	ba->data = gup->gus_ovslct;
    217 	 */
    218 
    219 #ifdef UL_DEBUG
    220 	printf("ulowell_init: %d %d %d %d %d %d\n", ip->ftwidth, ip->ftheight,
    221 		ip->ftbaseline, ip->font_lo, ip->font_hi, ip->ftboldsmear);
    222 #endif
    223 }
    224 
    225 
    226 void ulowell_cursor(struct ite_softc *ip, int flag)
    227 {
    228 	volatile struct gspregs *ba;
    229 	u_int16_t cmd[7];
    230 
    231 	ba = (volatile struct gspregs *)ip->grf->g_regkva;
    232 
    233 	if (flag == END_CURSOROPT)
    234 		--ip->cursor_opt;
    235 	else if (flag == START_CURSOROPT) {
    236 		if (!ip->cursor_opt)
    237 			ulowell_cursor(ip, ERASE_CURSOR);
    238 		++ip->cursor_opt;
    239 		return;		/* if we are already opted */
    240 	}
    241 
    242 	if (ip->cursor_opt)
    243 		return;		/* if we are still nested. */
    244 
    245 	/* else we draw the cursor */
    246 
    247 	if (flag != DRAW_CURSOR && flag != END_CURSOROPT) {
    248 		/* erase cursor */
    249 #if 0
    250 		cmd[0] = GCMD_PIXBLT;
    251 		cmd[1] = 1024 - ip->ftwidth;
    252 		cmd[2] = 1024 - ip->ftheight;
    253 		cmd[3] = ip->ftwidth;
    254 		cmd[4] = ip->ftheight;
    255 		cmd[5] = ip->cursorx * ip->ftwidth;
    256 		cmd[6] = ip->cursory * ip->ftheight;
    257 		gsp_out(ba, cmd, 7);
    258 #endif
    259 		cmd[0] = GCMD_FILL;
    260 		cmd[1] = UL_FG(ip);
    261 		cmd[2] = ip->cursorx * ip->ftwidth;
    262 		cmd[3] = ip->cursory * ip->ftheight;
    263 		cmd[4] = ip->ftwidth;
    264 		cmd[5] = ip->ftheight;
    265 		cmd[6] = 10;	/* thats src xor dst */
    266 		gsp_out(ba, cmd, 7);
    267 	}
    268 
    269 	if (flag != DRAW_CURSOR && flag != MOVE_CURSOR &&
    270 	    flag != END_CURSOROPT)
    271 		return;
    272 
    273 	/* draw cursor */
    274 
    275 	ip->cursorx = uimin(ip->curx, ip->cols-1);
    276 	ip->cursory = ip->cury;
    277 #if 0
    278 	cmd[0] = GCMD_PIXBLT;
    279 	cmd[1] = ip->cursorx * ip->ftwidth;
    280 	cmd[2] = ip->cursory * ip->ftheight;
    281 	cmd[3] = ip->ftwidth;
    282 	cmd[4] = ip->ftheight;
    283 	cmd[5] = 1024 - ip->ftwidth;
    284 	cmd[6] = 1024 - ip->ftheight;
    285 	gsp_out(ba, cmd, 7);
    286 #endif
    287 	cmd[0] = GCMD_FILL;
    288 	cmd[1] = UL_FG(ip);
    289 	cmd[2] = ip->cursorx * ip->ftwidth;
    290 	cmd[3] = ip->cursory * ip->ftheight;
    291 	cmd[4] = ip->ftwidth;
    292 	cmd[5] = ip->ftheight;
    293 	cmd[6] = 10;	/* thats src xor dst */
    294 	gsp_out(ba, cmd, 7);
    295 
    296 }
    297 
    298 
    299 
    300 static void screen_up(struct ite_softc *ip, int top, int bottom, int lines)
    301 {
    302 	volatile struct gspregs *ba;
    303 
    304 	u_int16_t cmd[7];
    305 
    306 	ba = (volatile struct gspregs *)ip->grf->g_regkva;
    307 
    308 #ifdef UL_DEBUG
    309 	printf("screen_up %d %d %d ->",top,bottom,lines);
    310 #endif
    311 	/* do some bounds-checking here.. */
    312 
    313 	if (top >= bottom)
    314 		return;
    315 
    316 	if (top + lines >= bottom)
    317 	{
    318 		ulowell_clear (ip, top, 0, bottom - top, ip->cols);
    319 		return;
    320 	}
    321 
    322 	cmd[0] = GCMD_PIXBLT;
    323 	cmd[1] = 0;					/* x */
    324 	cmd[2] = top			* ip->ftheight;	/* y */
    325 	cmd[3] = ip->cols		* ip->ftwidth;	/* w */
    326 	cmd[4] = (bottom-top+1)		* ip->ftheight;	/* h */
    327 	cmd[5] = 0;					/* dst x */
    328 	cmd[6] = (top-lines)  		* ip->ftheight;	/* dst y */
    329 	gsp_out(ba, cmd, 7);
    330 
    331 	ulowell_clear(ip, bottom-lines+1, 0, lines-1, ip->cols);
    332 };
    333 
    334 static void screen_down(struct ite_softc *ip, int top, int bottom, int lines)
    335 {
    336 	volatile struct gspregs *ba;
    337 
    338 	u_int16_t cmd[7];
    339 
    340 	ba = (volatile struct gspregs *)ip->grf->g_regkva;
    341 
    342 #ifdef UL_DEBUG
    343 	printf("screen_down %d %d %d ->",top,bottom,lines);
    344 #endif
    345 
    346 	/* do some bounds-checking here.. */
    347 
    348 	if (top >= bottom)
    349 		return;
    350 
    351 	if (top + lines >= bottom)
    352 	{
    353 	    ulowell_clear (ip, top, 0, bottom - top, ip->cols);
    354 	    return;
    355 	}
    356 
    357 	cmd[0] = GCMD_PIXBLT;
    358 	cmd[1] = 0;					/* x */
    359 	cmd[2] = top			* ip->ftheight;	/* y */
    360 	cmd[3] = ip->cols		* ip->ftwidth;	/* w */
    361 	cmd[4] = (bottom - top - lines)	* ip->ftheight;	/* h */
    362 	cmd[5] = 0;					/* dst x */
    363 	cmd[6] = (top + lines)		* ip->ftheight;	/* dst y */
    364 	gsp_out(ba, cmd, 7);
    365 
    366 	ulowell_clear(ip, top, 0, lines, ip->cols);
    367 };
    368 
    369 void ulowell_deinit(struct ite_softc *ip)
    370 {
    371 	ip->flags &= ~ITE_INITED;
    372 }
    373 
    374 
    375 void ulowell_putc(struct ite_softc *ip, int c, int dy, int dx, int mode)
    376 {
    377 	volatile struct gspregs *ba;
    378 	u_int16_t cmd[8];
    379 
    380 	ba = (volatile struct gspregs *)ip->grf->g_regkva;
    381 
    382 	cmd[0] = GCMD_CHAR;
    383 	cmd[1] = c & 0xff;
    384 	cmd[2] = 0x0;
    385 	cmd[3] = UL_FG(ip);
    386 	cmd[4] = dx * ip->ftwidth;
    387 	cmd[5] = dy * ip->ftheight;
    388 	cmd[6] = mode;
    389 	gsp_write(ba, cmd, 7);
    390 }
    391 
    392 void ulowell_clear(struct ite_softc *ip, int sy, int sx, int h, int w)
    393 {
    394 	/* XXX TBD */
    395 	volatile struct gspregs * ba;
    396 
    397 	u_int16_t cmd[7];
    398 
    399 #ifdef	UL_DEBUG
    400 	printf("ulowell_clear %d %d %d %d ->",sy,sx,h,w);
    401 #endif
    402 	ba = (volatile struct gspregs *)ip->grf->g_regkva;
    403 
    404 	cmd[0] = GCMD_FILL;
    405 	cmd[1] = 0x0; /* XXX */
    406 	cmd[2] = sx * ip->ftwidth;
    407 	cmd[3] = sy * ip->ftheight;
    408 	cmd[4] = w * ip->ftwidth;
    409 	cmd[5] = h * ip->ftheight;
    410 	cmd[6] = 0;
    411 
    412 	gsp_out(ba, cmd, 7);
    413 }
    414 
    415 void ulowell_scroll(struct ite_softc *ip, int sy, int sx, int count, int dir)
    416 {
    417 	volatile struct gspregs *ba;
    418 	u_int16_t cmd[7];
    419 
    420 	ba = (volatile struct gspregs *)ip->grf->g_regkva;
    421 
    422 #ifdef UL_DEBUG
    423 	printf("ulowell_scroll %d %d %d %d ->",sy,sx,count,dir);
    424 #endif
    425 
    426 	ulowell_cursor(ip, ERASE_CURSOR);
    427 
    428 	if (dir == SCROLL_UP) {
    429 		screen_up (ip, sy, ip->bottom_margin, count);
    430 	} else if (dir == SCROLL_DOWN) {
    431 		screen_down (ip, sy, ip->bottom_margin, count);
    432 	} else if (dir == SCROLL_RIGHT) {
    433 		cmd[0] = GCMD_PIXBLT;
    434 		cmd[1] = sx * ip->ftwidth;
    435 		cmd[2] = sy * ip->ftheight;
    436 		cmd[3] = (ip->cols - sx - count) * ip->ftwidth;
    437 		cmd[4] = ip->ftheight;
    438 		cmd[5] = (sx + count) * ip->ftwidth;
    439 		cmd[6] = sy * ip->ftheight;
    440 		gsp_out(ba,cmd,7);
    441 		ulowell_clear (ip, sy, sx, 1, count);
    442 	} else {
    443 		cmd[0] = GCMD_PIXBLT;
    444 		cmd[1] = sx * ip->ftwidth;
    445 		cmd[2] = sy * ip->ftheight;
    446 		cmd[3] = (ip->cols - sx) * ip->ftwidth;
    447 		cmd[4] = ip->ftheight;
    448 		cmd[5] = (sx - count) * ip->ftwidth;
    449 		cmd[6] = sy * ip->ftheight;
    450 		gsp_out(ba,cmd,7);
    451 		ulowell_clear (ip, sy, ip->cols - count, 1, count);
    452 	}
    453 }
    454 
    455 #ifdef UL_DEBUG
    456 void
    457 gsp_dump(u_int16_t *cmd,int len)
    458 {
    459 	printf("gsp");
    460 	while (len-- > 0)
    461 		printf(" %hx",*cmd++);
    462 	printf("\n");
    463 }
    464 #endif
    465 #endif /* NGRFUL */
    466