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nextdisplay.c revision 1.17 
      1 /* $NetBSD: nextdisplay.c,v 1.17 2005/01/19 01:58:21 chs 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 1.17 2005/01/19 01:58:21 chs 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 *, u_long, caddr_t, int, struct proc *);
    110 static paddr_t	nextdisplay_mmap(void *, off_t, int);
    111 static int	nextdisplay_alloc_screen(void *, const struct wsscreen_descr *,
    112 		void **, int *, int *, long *);
    113 static void	nextdisplay_free_screen(void *, void *);
    114 static int	nextdisplay_show_screen(void *, void *, int,
    115 					void (*) (void *, int, int), void *);
    116 static int	nextdisplay_load_font(void *, void *, struct wsdisplay_font *);
    117 
    118 const struct wsdisplay_accessops nextdisplay_accessops = {
    119 	nextdisplay_ioctl,
    120 	nextdisplay_mmap,
    121 	nextdisplay_alloc_screen,
    122 	nextdisplay_free_screen,
    123 	nextdisplay_show_screen,
    124 	nextdisplay_load_font
    125 };
    126 
    127 void nextdisplay_init(struct nextdisplay_config *, int);
    128 int nextdisplay_intr(void *);
    129 
    130 vaddr_t nextdisplay_consaddr;
    131 static int nextdisplay_is_console(vaddr_t);
    132 
    133 static struct nextdisplay_config nextdisplay_console_dc;
    134 
    135 static int
    136 nextdisplay_is_console(vaddr_t addr)
    137 {
    138 	return (nextdisplay_console_dc.isconsole
    139 			&& (addr == nextdisplay_consaddr));
    140 }
    141 
    142 int
    143 nextdisplay_match(struct device *parent, struct cfdata *match, void *aux)
    144 {
    145 	if (rom_machine_type == NeXT_WARP9 ||
    146 	    rom_machine_type == NeXT_X15 ||
    147 	    rom_machine_type == NeXT_WARP9C ||
    148 	    rom_machine_type == NeXT_TURBO_MONO ||
    149 	    rom_machine_type == NeXT_TURBO_COLOR)
    150 		return (1);
    151 	else
    152 		return (0);
    153 }
    154 
    155 void
    156 nextdisplay_init(struct nextdisplay_config *dc, int color)
    157 {
    158 	struct raster *rap;
    159 	struct rcons *rcp;
    160 	int i;
    161 
    162 	/* printf("in nextdisplay_init\n"); */
    163 
    164 	if (color) {
    165 		dc->dc_vaddr = colorbase;
    166 		dc->dc_paddr = COLORBASE;
    167 		dc->dc_size = NEXT_P_C16_VIDEOSIZE;
    168 	} else {
    169 		dc->dc_vaddr = monobase;
    170 		dc->dc_paddr = MONOBASE;
    171 		dc->dc_size = NEXT_P_VIDEOSIZE;
    172 	}
    173 
    174 	dc->dc_wid = 1120;
    175 	dc->dc_ht = 832;
    176 	dc->dc_depth = color ? 16 : 2;
    177 	dc->dc_rowbytes = (turbo ? 1120 : 1152) * dc->dc_depth / 8;
    178 
    179 	dc->dc_videobase = dc->dc_vaddr;
    180 
    181 #if 0
    182 	printf("intiobase at: %08x\n", intiobase);
    183 	printf("intiolimit at: %08x\n", intiolimit);
    184 	printf("videobase at: %08x\n", color ? colorbase : monobase);
    185 	printf("videolimit at: %08x\n", color ? colorlimit : monolimit);
    186 
    187 	printf("virtual fb at: %08x\n", dc->dc_vaddr);
    188 	printf("physical fb at: %08x\n", dc->dc_paddr);
    189 	printf("fb size: %08x\n", dc->dc_size);
    190 
    191 	printf("dc_wid: %08x\n", dc->dc_wid);
    192 	printf("dc_ht: %08x\n", dc->dc_ht);
    193 	printf("dc_depth: %08x\n", dc->dc_depth);
    194 	printf("dc_rowbytes: %08x\n", dc->dc_rowbytes);
    195 	printf("dc_videobase: %08x\n", dc->dc_videobase);
    196 #endif
    197 
    198 	/* clear the screen */
    199 	for (i = 0; i < dc->dc_ht * dc->dc_rowbytes; i += sizeof(u_int32_t))
    200 		*(u_int32_t *)(dc->dc_videobase + i) =
    201 			(color ? 0x0 : 0xffffffff);
    202 
    203 	rap = &dc->dc_raster;
    204 	rap->width = dc->dc_wid;
    205 	rap->height = dc->dc_ht;
    206 	rap->depth = color ? 16 : 2;
    207 	rap->linelongs = dc->dc_rowbytes / sizeof(u_int32_t);
    208 	rap->pixels = (u_int32_t *)dc->dc_videobase;
    209 
    210 	/* initialize the raster console blitter */
    211 	rcp = &dc->dc_rcons;
    212 	rcp->rc_sp = rap;
    213 	rcp->rc_crow = rcp->rc_ccol = -1;
    214 	rcp->rc_crowp = &rcp->rc_crow;
    215 	rcp->rc_ccolp = &rcp->rc_ccol;
    216 	rcons_init(rcp, 34, 80);
    217 
    218 	if (color) {
    219 		nextdisplay_color.nrows = dc->dc_rcons.rc_maxrow;
    220 		nextdisplay_color.ncols = dc->dc_rcons.rc_maxcol;
    221 	} else {
    222 		nextdisplay_mono.nrows = dc->dc_rcons.rc_maxrow;
    223 		nextdisplay_mono.ncols = dc->dc_rcons.rc_maxcol;
    224 	}
    225 }
    226 
    227 void
    228 nextdisplay_attach(struct device *parent, struct device *self, void *aux)
    229 {
    230 	struct nextdisplay_softc *sc = (void *)self;
    231 	struct wsemuldisplaydev_attach_args waa;
    232 	int isconsole;
    233 	int iscolor;
    234 	paddr_t addr;
    235 
    236 	if (rom_machine_type == NeXT_WARP9C ||
    237 	    rom_machine_type == NeXT_TURBO_COLOR) {
    238 		iscolor = 1;
    239 		addr = colorbase;
    240 	} else {
    241 		iscolor = 0;
    242 		addr = monobase;
    243 	}
    244 
    245 	isconsole = nextdisplay_is_console(addr);
    246 
    247 	if (isconsole) {
    248 		sc->sc_dc = &nextdisplay_console_dc;
    249 		sc->nscreens = 1;
    250 	} else {
    251 		sc->sc_dc = (struct nextdisplay_config *)
    252 				malloc(sizeof(struct nextdisplay_config), M_DEVBUF, M_WAITOK);
    253 		nextdisplay_init(sc->sc_dc, iscolor);
    254 	}
    255 
    256 	printf(": %d x %d, %dbpp\n", sc->sc_dc->dc_wid, sc->sc_dc->dc_ht,
    257 	       sc->sc_dc->dc_depth);
    258 
    259 	if (iscolor) {
    260 #if 0
    261 		uint8_t x;
    262 
    263 		x = *(volatile uint8_t *)IIOV(NEXT_P_C16_CMD_REG);
    264 		printf("%s: cmd=%02x\n", sc->sc_dev.dv_xname, x);
    265 #endif
    266 		*(volatile uint8_t *)IIOV(NEXT_P_C16_CMD_REG) = 0x05;
    267 		isrlink_autovec(nextdisplay_intr, sc, NEXT_I_IPL(NEXT_I_C16_VIDEO), 1, NULL);
    268 		INTR_ENABLE(NEXT_I_C16_VIDEO);
    269 	}
    270 
    271 	/* initialize the raster */
    272 	waa.console = isconsole;
    273 	waa.scrdata = iscolor ? &nextdisplay_screenlist_color : &nextdisplay_screenlist_mono;
    274 	waa.accessops = &nextdisplay_accessops;
    275 	waa.accesscookie = sc;
    276 #if 0
    277 	printf("nextdisplay: access cookie is %p\n", sc);
    278 #endif
    279 	config_found(self, &waa, wsemuldisplaydevprint);
    280 }
    281 
    282 int
    283 nextdisplay_intr(void *arg)
    284 {
    285 #if 0
    286 	uint8_t x;
    287 #endif
    288 
    289 	if (!INTR_OCCURRED(NEXT_I_C16_VIDEO))
    290 		return (0);
    291 #if 0
    292 	x = *(volatile uint8_t *)IIOV(NEXT_P_C16_CMD_REG);
    293 	printf("I%02x", x);
    294 #endif
    295 	*(volatile uint8_t *)IIOV(NEXT_P_C16_CMD_REG) = 0x05;
    296 	return (1);
    297 }
    298 
    299 int
    300 nextdisplay_ioctl(void *v, u_long cmd, caddr_t data, int flag, struct proc *p)
    301 {
    302 	struct nextdisplay_softc *sc = v;
    303 	struct nextdisplay_config *dc = sc->sc_dc;
    304 
    305 	switch (cmd) {
    306 	case WSDISPLAYIO_GTYPE:
    307 		*(int *)data = dc->dc_type;
    308 		return 0;
    309 
    310 	case WSDISPLAYIO_SCURSOR:
    311 		printf("nextdisplay_ioctl: wsdisplayio_scursor\n");
    312 		return EPASSTHROUGH;
    313 
    314 	case WSDISPLAYIO_SCURPOS:
    315 		printf("nextdisplay_ioctl: wsdisplayio_scurpos\n");
    316 		return EPASSTHROUGH;
    317 
    318 	case WSDISPLAYIO_GINFO:
    319 	case WSDISPLAYIO_GETCMAP:
    320 	case WSDISPLAYIO_PUTCMAP:
    321 	case WSDISPLAYIO_GVIDEO:
    322 	case WSDISPLAYIO_SVIDEO:
    323 	case WSDISPLAYIO_GCURPOS:
    324 	case WSDISPLAYIO_GCURMAX:
    325 	case WSDISPLAYIO_GCURSOR:
    326 		printf("nextdisplay_ioctl: listed but unsupported ioctl\n");
    327 		return EPASSTHROUGH;
    328 	}
    329 
    330 	return EPASSTHROUGH;
    331 }
    332 
    333 static paddr_t
    334 nextdisplay_mmap(void *v, off_t offset, int prot)
    335 {
    336 
    337 	/* XXX */
    338 	printf("nextdisplay_mmap: failed\n");
    339 	return -1;
    340 }
    341 
    342 int
    343 nextdisplay_alloc_screen(void *v, const struct wsscreen_descr *type,
    344     void **cookiep, int *curxp, int *curyp, long *defattrp)
    345 {
    346 	struct nextdisplay_softc *sc = v;
    347 	long defattr;
    348 
    349 	/* only allow one screen */
    350 	if (sc->nscreens > 0)
    351 		return (ENOMEM);
    352 
    353 	*cookiep = &sc->sc_dc->dc_rcons; /* one and only for now */
    354 	*curxp = 0;
    355 	*curyp = 0;
    356 	rcons_allocattr(&sc->sc_dc->dc_rcons, 0, 0,
    357 			(strcmp(type->name, "color") == 0)
    358 			? 0
    359 			: WSATTR_REVERSE, &defattr);
    360 	*defattrp = defattr;
    361 	sc->nscreens++;
    362 #if 0
    363 	printf("nextdisplay: allocating screen\n");
    364 #endif
    365 	return (0);
    366 }
    367 
    368 void
    369 nextdisplay_free_screen(void *v, void *cookie)
    370 {
    371 	struct nextdisplay_softc *sc = v;
    372 
    373 	if (sc->sc_dc == &nextdisplay_console_dc)
    374 		panic("nextdisplay_free_screen: console");
    375 
    376 	sc->nscreens--;
    377 }
    378 
    379 int
    380 nextdisplay_show_screen(void *v, void *cookie, int waitok,
    381     void (*cb)(void *, int, int), void *cbarg)
    382 {
    383 
    384 	return (0);
    385 }
    386 
    387 static int
    388 nextdisplay_load_font(void *v, void *cookie, struct wsdisplay_font *font)
    389 {
    390 	return (EPASSTHROUGH);
    391 }
    392 
    393 int
    394 nextdisplay_cnattach(void)
    395 {
    396 	struct nextdisplay_config *dc = &nextdisplay_console_dc;
    397 	long defattr;
    398 	int iscolor;
    399 
    400 	if (rom_machine_type == NeXT_WARP9C ||
    401 	    rom_machine_type == NeXT_TURBO_COLOR)
    402 		iscolor = 1;
    403 	else
    404 		iscolor = 0;
    405 
    406 	/* set up the display */
    407 	nextdisplay_init(&nextdisplay_console_dc, iscolor);
    408 	nextdisplay_consaddr = nextdisplay_console_dc.dc_vaddr;
    409 
    410 	rcons_allocattr(&dc->dc_rcons, 0, 0,
    411 			iscolor ? 0 : WSATTR_REVERSE, &defattr);
    412 
    413 	wsdisplay_cnattach(iscolor ? &nextdisplay_color : &nextdisplay_mono,
    414 			   &dc->dc_rcons, 0, 0, defattr);
    415 
    416 	dc->isconsole = 1;
    417 	return (0);
    418 }
    419