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nextdisplay.c revision 1.19 
      1 /* $NetBSD: nextdisplay.c,v 1.19 2006/04/12 19:38:23 jmmv Exp $ */
      2 
      3 /*
      4  * Copyright (c) 1998 Matt DeBergalis
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *      This product includes software developed by Matt DeBergalis
     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/cdefs.h>
     34 __KERNEL_RCSID(0, "$NetBSD: nextdisplay.c,v 1.19 2006/04/12 19:38:23 jmmv Exp $");
     35 
     36 #include <sys/cdefs.h>			/* RCS ID & Copyright macro defns */
     37 
     38 #include <sys/param.h>
     39 #include <sys/systm.h>
     40 #include <sys/kernel.h>
     41 #include <sys/device.h>
     42 #include <sys/malloc.h>
     43 
     44 #include <machine/bus.h>
     45 #include <machine/cpu.h>
     46 
     47 #include <next68k/next68k/nextrom.h>
     48 #include <next68k/next68k/isr.h>
     49 
     50 #include <next68k/dev/intiovar.h>
     51 #include <next68k/dev/nextdisplayvar.h>
     52 #include <dev/wscons/wsconsio.h>
     53 
     54 #include <dev/rcons/raster.h>
     55 #include <dev/wscons/wscons_raster.h>
     56 #include <dev/wscons/wsdisplayvar.h>
     57 
     58 extern int turbo;
     59 
     60 int nextdisplay_match(struct device *, struct cfdata *, void *);
     61 void nextdisplay_attach(struct device *, struct device *, void *);
     62 
     63 CFATTACH_DECL(nextdisplay, sizeof(struct nextdisplay_softc),
     64     nextdisplay_match, nextdisplay_attach, NULL, NULL);
     65 
     66 const struct wsdisplay_emulops nextdisplay_mono_emulops = {
     67 	rcons_cursor,
     68 	rcons_mapchar,
     69 	rcons_putchar,
     70 	rcons_copycols,
     71 	rcons_erasecols,
     72 	rcons_copyrows,
     73 	rcons_eraserows,
     74 	rcons_allocattr
     75 };
     76 
     77 struct wsscreen_descr nextdisplay_mono = {
     78 	"mono",
     79 	0, 0, /* will be filled in -- XXX shouldn't, it's global */
     80 	&nextdisplay_mono_emulops,
     81 	0, 0
     82 };
     83 
     84 struct wsscreen_descr nextdisplay_color = {
     85         "color",
     86         0, 0, /* again, filled in */
     87         &nextdisplay_mono_emulops,
     88         0, 0
     89 };
     90 
     91 const struct wsscreen_descr *_nextdisplay_scrlist_mono[] = {
     92 	&nextdisplay_mono,
     93 };
     94 
     95 const struct wsscreen_descr *_nextdisplay_scrlist_color[] = {
     96         &nextdisplay_color,
     97 };
     98 
     99 const struct wsscreen_list nextdisplay_screenlist_mono = {
    100 	sizeof(_nextdisplay_scrlist_mono) / sizeof(struct wsscreen_descr *),
    101 	_nextdisplay_scrlist_mono
    102 };
    103 
    104 const struct wsscreen_list nextdisplay_screenlist_color = {
    105 	sizeof(_nextdisplay_scrlist_color) / sizeof(struct wsscreen_descr *),
    106 	_nextdisplay_scrlist_color
    107 };
    108 
    109 static int	nextdisplay_ioctl(void *, void *, u_long, caddr_t, int,
    110 		    struct lwp *);
    111 static paddr_t	nextdisplay_mmap(void *, void *, off_t, int);
    112 static int	nextdisplay_alloc_screen(void *, const struct wsscreen_descr *,
    113 		void **, int *, int *, long *);
    114 static void	nextdisplay_free_screen(void *, void *);
    115 static int	nextdisplay_show_screen(void *, void *, int,
    116 					void (*) (void *, int, int), void *);
    117 static int	nextdisplay_load_font(void *, void *, struct wsdisplay_font *);
    118 
    119 const struct wsdisplay_accessops nextdisplay_accessops = {
    120 	nextdisplay_ioctl,
    121 	nextdisplay_mmap,
    122 	nextdisplay_alloc_screen,
    123 	nextdisplay_free_screen,
    124 	nextdisplay_show_screen,
    125 	nextdisplay_load_font
    126 };
    127 
    128 void nextdisplay_init(struct nextdisplay_config *, int);
    129 int nextdisplay_intr(void *);
    130 
    131 vaddr_t nextdisplay_consaddr;
    132 static int nextdisplay_is_console(vaddr_t);
    133 
    134 static struct nextdisplay_config nextdisplay_console_dc;
    135 
    136 static int
    137 nextdisplay_is_console(vaddr_t addr)
    138 {
    139 	return (nextdisplay_console_dc.isconsole
    140 			&& (addr == nextdisplay_consaddr));
    141 }
    142 
    143 int
    144 nextdisplay_match(struct device *parent, struct cfdata *match, void *aux)
    145 {
    146 	if (rom_machine_type == NeXT_WARP9 ||
    147 	    rom_machine_type == NeXT_X15 ||
    148 	    rom_machine_type == NeXT_WARP9C ||
    149 	    rom_machine_type == NeXT_TURBO_MONO ||
    150 	    rom_machine_type == NeXT_TURBO_COLOR)
    151 		return (1);
    152 	else
    153 		return (0);
    154 }
    155 
    156 void
    157 nextdisplay_init(struct nextdisplay_config *dc, int color)
    158 {
    159 	struct raster *rap;
    160 	struct rcons *rcp;
    161 	int i;
    162 
    163 	/* printf("in nextdisplay_init\n"); */
    164 
    165 	if (color) {
    166 		dc->dc_vaddr = colorbase;
    167 		dc->dc_paddr = COLORBASE;
    168 		dc->dc_size = NEXT_P_C16_VIDEOSIZE;
    169 	} else {
    170 		dc->dc_vaddr = monobase;
    171 		dc->dc_paddr = MONOBASE;
    172 		dc->dc_size = NEXT_P_VIDEOSIZE;
    173 	}
    174 
    175 	dc->dc_wid = 1120;
    176 	dc->dc_ht = 832;
    177 	dc->dc_depth = color ? 16 : 2;
    178 	dc->dc_rowbytes = (turbo ? 1120 : 1152) * dc->dc_depth / 8;
    179 
    180 	dc->dc_videobase = dc->dc_vaddr;
    181 
    182 #if 0
    183 	printf("intiobase at: %08x\n", intiobase);
    184 	printf("intiolimit at: %08x\n", intiolimit);
    185 	printf("videobase at: %08x\n", color ? colorbase : monobase);
    186 	printf("videolimit at: %08x\n", color ? colorlimit : monolimit);
    187 
    188 	printf("virtual fb at: %08x\n", dc->dc_vaddr);
    189 	printf("physical fb at: %08x\n", dc->dc_paddr);
    190 	printf("fb size: %08x\n", dc->dc_size);
    191 
    192 	printf("dc_wid: %08x\n", dc->dc_wid);
    193 	printf("dc_ht: %08x\n", dc->dc_ht);
    194 	printf("dc_depth: %08x\n", dc->dc_depth);
    195 	printf("dc_rowbytes: %08x\n", dc->dc_rowbytes);
    196 	printf("dc_videobase: %08x\n", dc->dc_videobase);
    197 #endif
    198 
    199 	/* clear the screen */
    200 	for (i = 0; i < dc->dc_ht * dc->dc_rowbytes; i += sizeof(u_int32_t))
    201 		*(u_int32_t *)(dc->dc_videobase + i) =
    202 			(color ? 0x0 : 0xffffffff);
    203 
    204 	rap = &dc->dc_raster;
    205 	rap->width = dc->dc_wid;
    206 	rap->height = dc->dc_ht;
    207 	rap->depth = color ? 16 : 2;
    208 	rap->linelongs = dc->dc_rowbytes / sizeof(u_int32_t);
    209 	rap->pixels = (u_int32_t *)dc->dc_videobase;
    210 
    211 	/* initialize the raster console blitter */
    212 	rcp = &dc->dc_rcons;
    213 	rcp->rc_sp = rap;
    214 	rcp->rc_crow = rcp->rc_ccol = -1;
    215 	rcp->rc_crowp = &rcp->rc_crow;
    216 	rcp->rc_ccolp = &rcp->rc_ccol;
    217 	rcons_init(rcp, 34, 80);
    218 
    219 	if (color) {
    220 		nextdisplay_color.nrows = dc->dc_rcons.rc_maxrow;
    221 		nextdisplay_color.ncols = dc->dc_rcons.rc_maxcol;
    222 	} else {
    223 		nextdisplay_mono.nrows = dc->dc_rcons.rc_maxrow;
    224 		nextdisplay_mono.ncols = dc->dc_rcons.rc_maxcol;
    225 	}
    226 }
    227 
    228 void
    229 nextdisplay_attach(struct device *parent, struct device *self, void *aux)
    230 {
    231 	struct nextdisplay_softc *sc = (void *)self;
    232 	struct wsemuldisplaydev_attach_args waa;
    233 	int isconsole;
    234 	int iscolor;
    235 	paddr_t addr;
    236 
    237 	if (rom_machine_type == NeXT_WARP9C ||
    238 	    rom_machine_type == NeXT_TURBO_COLOR) {
    239 		iscolor = 1;
    240 		addr = colorbase;
    241 	} else {
    242 		iscolor = 0;
    243 		addr = monobase;
    244 	}
    245 
    246 	isconsole = nextdisplay_is_console(addr);
    247 
    248 	if (isconsole) {
    249 		sc->sc_dc = &nextdisplay_console_dc;
    250 		sc->nscreens = 1;
    251 	} else {
    252 		sc->sc_dc = (struct nextdisplay_config *)
    253 				malloc(sizeof(struct nextdisplay_config), M_DEVBUF, M_WAITOK);
    254 		nextdisplay_init(sc->sc_dc, iscolor);
    255 	}
    256 
    257 	printf(": %d x %d, %dbpp\n", sc->sc_dc->dc_wid, sc->sc_dc->dc_ht,
    258 	       sc->sc_dc->dc_depth);
    259 
    260 	if (iscolor) {
    261 #if 0
    262 		uint8_t x;
    263 
    264 		x = *(volatile uint8_t *)IIOV(NEXT_P_C16_CMD_REG);
    265 		printf("%s: cmd=%02x\n", sc->sc_dev.dv_xname, x);
    266 #endif
    267 		*(volatile uint8_t *)IIOV(NEXT_P_C16_CMD_REG) = 0x05;
    268 		isrlink_autovec(nextdisplay_intr, sc, NEXT_I_IPL(NEXT_I_C16_VIDEO), 1, NULL);
    269 		INTR_ENABLE(NEXT_I_C16_VIDEO);
    270 	}
    271 
    272 	/* initialize the raster */
    273 	waa.console = isconsole;
    274 	waa.scrdata = iscolor ? &nextdisplay_screenlist_color : &nextdisplay_screenlist_mono;
    275 	waa.accessops = &nextdisplay_accessops;
    276 	waa.accesscookie = sc;
    277 #if 0
    278 	printf("nextdisplay: access cookie is %p\n", sc);
    279 #endif
    280 	config_found(self, &waa, wsemuldisplaydevprint);
    281 }
    282 
    283 int
    284 nextdisplay_intr(void *arg)
    285 {
    286 #if 0
    287 	uint8_t x;
    288 #endif
    289 
    290 	if (!INTR_OCCURRED(NEXT_I_C16_VIDEO))
    291 		return (0);
    292 #if 0
    293 	x = *(volatile uint8_t *)IIOV(NEXT_P_C16_CMD_REG);
    294 	printf("I%02x", x);
    295 #endif
    296 	*(volatile uint8_t *)IIOV(NEXT_P_C16_CMD_REG) = 0x05;
    297 	return (1);
    298 }
    299 
    300 int
    301 nextdisplay_ioctl(void *v, void *vs, u_long cmd, caddr_t data, int flag,
    302 	struct lwp *l)
    303 {
    304 	struct nextdisplay_softc *sc = v;
    305 	struct nextdisplay_config *dc = sc->sc_dc;
    306 
    307 	switch (cmd) {
    308 	case WSDISPLAYIO_GTYPE:
    309 		*(int *)data = dc->dc_type;
    310 		return 0;
    311 
    312 	case WSDISPLAYIO_SCURSOR:
    313 		printf("nextdisplay_ioctl: wsdisplayio_scursor\n");
    314 		return EPASSTHROUGH;
    315 
    316 	case WSDISPLAYIO_SCURPOS:
    317 		printf("nextdisplay_ioctl: wsdisplayio_scurpos\n");
    318 		return EPASSTHROUGH;
    319 
    320 	case WSDISPLAYIO_GINFO:
    321 	case WSDISPLAYIO_GETCMAP:
    322 	case WSDISPLAYIO_PUTCMAP:
    323 	case WSDISPLAYIO_GVIDEO:
    324 	case WSDISPLAYIO_SVIDEO:
    325 	case WSDISPLAYIO_GCURPOS:
    326 	case WSDISPLAYIO_GCURMAX:
    327 	case WSDISPLAYIO_GCURSOR:
    328 		printf("nextdisplay_ioctl: listed but unsupported ioctl\n");
    329 		return EPASSTHROUGH;
    330 	}
    331 
    332 	return EPASSTHROUGH;
    333 }
    334 
    335 static paddr_t
    336 nextdisplay_mmap(void *v, void *vs, off_t offset, int prot)
    337 {
    338 
    339 	/* XXX */
    340 	printf("nextdisplay_mmap: failed\n");
    341 	return -1;
    342 }
    343 
    344 int
    345 nextdisplay_alloc_screen(void *v, const struct wsscreen_descr *type,
    346     void **cookiep, int *curxp, int *curyp, long *defattrp)
    347 {
    348 	struct nextdisplay_softc *sc = v;
    349 	long defattr;
    350 
    351 	/* only allow one screen */
    352 	if (sc->nscreens > 0)
    353 		return (ENOMEM);
    354 
    355 	*cookiep = &sc->sc_dc->dc_rcons; /* one and only for now */
    356 	*curxp = 0;
    357 	*curyp = 0;
    358 	rcons_allocattr(&sc->sc_dc->dc_rcons, 0, 0,
    359 			(strcmp(type->name, "color") == 0)
    360 			? 0
    361 			: WSATTR_REVERSE, &defattr);
    362 	*defattrp = defattr;
    363 	sc->nscreens++;
    364 #if 0
    365 	printf("nextdisplay: allocating screen\n");
    366 #endif
    367 	return (0);
    368 }
    369 
    370 void
    371 nextdisplay_free_screen(void *v, void *cookie)
    372 {
    373 	struct nextdisplay_softc *sc = v;
    374 
    375 	if (sc->sc_dc == &nextdisplay_console_dc)
    376 		panic("nextdisplay_free_screen: console");
    377 
    378 	sc->nscreens--;
    379 }
    380 
    381 int
    382 nextdisplay_show_screen(void *v, void *cookie, int waitok,
    383     void (*cb)(void *, int, int), void *cbarg)
    384 {
    385 
    386 	return (0);
    387 }
    388 
    389 static int
    390 nextdisplay_load_font(void *v, void *cookie, struct wsdisplay_font *font)
    391 {
    392 	return (EPASSTHROUGH);
    393 }
    394 
    395 int
    396 nextdisplay_cnattach(void)
    397 {
    398 	struct nextdisplay_config *dc = &nextdisplay_console_dc;
    399 	long defattr;
    400 	int iscolor;
    401 
    402 	if (rom_machine_type == NeXT_WARP9C ||
    403 	    rom_machine_type == NeXT_TURBO_COLOR)
    404 		iscolor = 1;
    405 	else
    406 		iscolor = 0;
    407 
    408 	/* set up the display */
    409 	nextdisplay_init(&nextdisplay_console_dc, iscolor);
    410 	nextdisplay_consaddr = nextdisplay_console_dc.dc_vaddr;
    411 
    412 	rcons_allocattr(&dc->dc_rcons, 0, 0,
    413 			iscolor ? 0 : WSATTR_REVERSE, &defattr);
    414 
    415 	wsdisplay_cnattach(iscolor ? &nextdisplay_color : &nextdisplay_mono,
    416 			   &dc->dc_rcons, 0, 0, defattr);
    417 
    418 	dc->isconsole = 1;
    419 	return (0);
    420 }
    421