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newport.c revision 1.18.4.1
      1 /*	$NetBSD: newport.c,v 1.18.4.1 2015/09/22 12:05:51 skrll Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2003 Ilpo Ruotsalainen
      5  *               2009 Michael Lorenz
      6  * All rights reserved.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  * 3. The name of the author may not be used to endorse or promote products
     17  *    derived from this software without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     20  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     21  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     22  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     23  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     24  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     28  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  *
     30  * <<Id: LICENSE_GC,v 1.1 2001/10/01 23:24:05 cgd Exp>>
     31  */
     32 
     33 #include <sys/cdefs.h>
     34 __KERNEL_RCSID(0, "$NetBSD: newport.c,v 1.18.4.1 2015/09/22 12:05:51 skrll Exp $");
     35 
     36 #include <sys/param.h>
     37 #include <sys/systm.h>
     38 #include <sys/device.h>
     39 #include <sys/malloc.h>
     40 
     41 #include <machine/sysconf.h>
     42 
     43 #include <dev/wscons/wsconsio.h>
     44 #include <dev/wscons/wsdisplayvar.h>
     45 #include <dev/wsfont/wsfont.h>
     46 #include <dev/rasops/rasops.h>
     47 #include <dev/wscons/wsdisplay_vconsvar.h>
     48 
     49 #include <sgimips/gio/giovar.h>
     50 #include <sgimips/gio/newportvar.h>
     51 #include <sgimips/gio/newportreg.h>
     52 
     53 struct newport_softc {
     54 	device_t sc_dev;
     55 
     56 	struct newport_devconfig *sc_dc;
     57 
     58 };
     59 
     60 struct newport_devconfig {
     61 	bus_space_tag_t		dc_st;
     62 	bus_space_handle_t	dc_sh;
     63 	bus_addr_t		dc_addr;
     64 
     65 	int			dc_boardrev;
     66 	int			dc_vc2rev;
     67 	int			dc_cmaprev;
     68 	int			dc_xmaprev;
     69 	int			dc_rexrev;
     70 	int			dc_xres;
     71 	int			dc_yres;
     72 	int			dc_depth;
     73 
     74 	int			dc_font;
     75 	struct wsscreen_descr	*dc_screen;
     76 	struct wsdisplay_font	*dc_fontdata;
     77 	int			dc_mode;
     78 	struct vcons_data	dc_vd;
     79 };
     80 
     81 static int  newport_match(device_t, struct cfdata *, void *);
     82 static void newport_attach(device_t, device_t, void *);
     83 
     84 CFATTACH_DECL_NEW(newport, sizeof(struct newport_softc),
     85     newport_match, newport_attach, NULL, NULL);
     86 
     87 /* textops */
     88 static void newport_cursor(void *, int, int, int);
     89 static void newport_cursor_dummy(void *, int, int, int);
     90 static int  newport_mapchar(void *, int, unsigned int *);
     91 static void newport_putchar(void *, int, int, u_int, long);
     92 static void newport_copycols(void *, int, int, int, int);
     93 static void newport_erasecols(void *, int, int, int, long);
     94 static void newport_copyrows(void *, int, int, int);
     95 static void newport_eraserows(void *, int, int, long);
     96 static int  newport_allocattr(void *, int, int, int, long *);
     97 
     98 static void newport_init_screen(void *, struct vcons_screen *, int, long *);
     99 
    100 /* accessops */
    101 static int     newport_ioctl(void *, void *, u_long, void *, int,
    102     struct lwp *);
    103 static paddr_t newport_mmap(void *, void *, off_t, int);
    104 
    105 static struct wsdisplay_accessops newport_accessops = {
    106 	.ioctl		= newport_ioctl,
    107 	.mmap		= newport_mmap,
    108 };
    109 
    110 static struct wsdisplay_emulops newport_textops = {
    111 	.cursor		= newport_cursor_dummy,
    112 	.mapchar	= newport_mapchar,
    113 	.putchar	= newport_putchar,
    114 	.copycols	= newport_copycols,
    115 	.erasecols	= newport_erasecols,
    116 	.copyrows	= newport_copyrows,
    117 	.eraserows	= newport_eraserows,
    118 	.allocattr	= newport_allocattr
    119 };
    120 
    121 static struct wsscreen_descr newport_screen = {
    122 	.name		= "default",
    123 	.ncols		= 160,
    124 	.nrows		= 64,
    125 	.textops	= &newport_textops,
    126 	.fontwidth	= 8,
    127 	.fontheight	= 16,
    128 	.capabilities	= WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_REVERSE
    129 };
    130 
    131 static const struct wsscreen_descr *_newport_screenlist[] = {
    132 	&newport_screen
    133 };
    134 
    135 static const struct wsscreen_list newport_screenlist = {
    136 	sizeof(_newport_screenlist) / sizeof(struct wsscreen_descr *),
    137 	_newport_screenlist
    138 };
    139 
    140 static struct vcons_screen newport_console_screen;
    141 static struct newport_devconfig newport_console_dc;
    142 static int newport_is_console = 0;
    143 
    144 #define NEWPORT_ATTR_ENCODE(fg,bg)	(((fg) << 8) | (bg))
    145 #define NEWPORT_ATTR_BG(a)		((a) & 0xff)
    146 #define NEWPORT_ATTR_FG(a)		(((a) >> 8) & 0xff)
    147 
    148 extern const u_char rasops_cmap[768];
    149 
    150 /**** Low-level hardware register groveling functions ****/
    151 static void
    152 rex3_write(struct newport_devconfig *dc, bus_size_t rexreg, uint32_t val)
    153 {
    154 	bus_space_write_4(dc->dc_st, dc->dc_sh, NEWPORT_REX3_OFFSET + rexreg,
    155 	    val);
    156 }
    157 
    158 static void
    159 rex3_write_go(struct newport_devconfig *dc, bus_size_t rexreg, uint32_t val)
    160 {
    161 	rex3_write(dc, rexreg + REX3_REG_GO, val);
    162 }
    163 
    164 static uint32_t
    165 rex3_read(struct newport_devconfig *dc, bus_size_t rexreg)
    166 {
    167 	return bus_space_read_4(dc->dc_st, dc->dc_sh, NEWPORT_REX3_OFFSET +
    168 	    rexreg);
    169 }
    170 
    171 static void
    172 rex3_wait_gfifo(struct newport_devconfig *dc)
    173 {
    174 	while (rex3_read(dc, REX3_REG_STATUS) &
    175 	    (REX3_STATUS_GFXBUSY | REX3_STATUS_PIPELEVEL_MASK))
    176 		;
    177 }
    178 
    179 static void
    180 vc2_write_ireg(struct newport_devconfig *dc, uint8_t ireg, uint16_t val)
    181 {
    182 	rex3_write(dc, REX3_REG_DCBMODE,
    183 	    REX3_DCBMODE_DW_3 |
    184 	    REX3_DCBMODE_ENCRSINC |
    185 	    (NEWPORT_DCBADDR_VC2 << REX3_DCBMODE_DCBADDR_SHIFT) |
    186 	    (VC2_DCBCRS_INDEX << REX3_DCBMODE_DCBCRS_SHIFT) |
    187 	    REX3_DCBMODE_ENASYNCACK |
    188 	    (1 << REX3_DCBMODE_CSSETUP_SHIFT));
    189 
    190 	rex3_write(dc, REX3_REG_DCBDATA0, (ireg << 24) | (val << 8));
    191 }
    192 
    193 static uint16_t
    194 vc2_read_ireg(struct newport_devconfig *dc, uint8_t ireg)
    195 {
    196 	rex3_write(dc, REX3_REG_DCBMODE,
    197 	    REX3_DCBMODE_DW_1 |
    198 	    REX3_DCBMODE_ENCRSINC |
    199 	    (NEWPORT_DCBADDR_VC2 << REX3_DCBMODE_DCBADDR_SHIFT) |
    200 	    (VC2_DCBCRS_INDEX << REX3_DCBMODE_DCBCRS_SHIFT) |
    201 	    REX3_DCBMODE_ENASYNCACK |
    202 	    (1 << REX3_DCBMODE_CSSETUP_SHIFT));
    203 
    204 	rex3_write(dc, REX3_REG_DCBDATA0, ireg << 24);
    205 
    206 	rex3_write(dc, REX3_REG_DCBMODE,
    207 	    REX3_DCBMODE_DW_2 |
    208 	    REX3_DCBMODE_ENCRSINC |
    209 	    (NEWPORT_DCBADDR_VC2 << REX3_DCBMODE_DCBADDR_SHIFT) |
    210 	    (VC2_DCBCRS_IREG << REX3_DCBMODE_DCBCRS_SHIFT) |
    211 	    REX3_DCBMODE_ENASYNCACK |
    212 	    (1 << REX3_DCBMODE_CSSETUP_SHIFT));
    213 
    214 	return (uint16_t)(rex3_read(dc, REX3_REG_DCBDATA0) >> 16);
    215 }
    216 
    217 static uint16_t
    218 vc2_read_ram(struct newport_devconfig *dc, uint16_t addr)
    219 {
    220 	vc2_write_ireg(dc, VC2_IREG_RAM_ADDRESS, addr);
    221 
    222 	rex3_write(dc, REX3_REG_DCBMODE,
    223 	    REX3_DCBMODE_DW_2 |
    224 	    (NEWPORT_DCBADDR_VC2 << REX3_DCBMODE_DCBADDR_SHIFT) |
    225 	    (VC2_DCBCRS_RAM << REX3_DCBMODE_DCBCRS_SHIFT) |
    226 	    REX3_DCBMODE_ENASYNCACK |
    227 	    (1 << REX3_DCBMODE_CSSETUP_SHIFT));
    228 
    229 	return (uint16_t)(rex3_read(dc, REX3_REG_DCBDATA0) >> 16);
    230 }
    231 
    232 #if 0
    233 static void
    234 vc2_write_ram(struct newport_devconfig *dc, uint16_t addr, uint16_t val)
    235 {
    236 	vc2_write_ireg(dc, VC2_IREG_RAM_ADDRESS, addr);
    237 
    238 	rex3_write(dc, REX3_REG_DCBMODE,
    239 	    REX3_DCBMODE_DW_2 |
    240 	    (NEWPORT_DCBADDR_VC2 << REX3_DCBMODE_DCBADDR_SHIFT) |
    241 	    (VC2_DCBCRS_RAM << REX3_DCBMODE_DCBCRS_SHIFT) |
    242 	    REX3_DCBMODE_ENASYNCACK |
    243 	    (1 << REX3_DCBMODE_CSSETUP_SHIFT));
    244 
    245 	rex3_write(dc, REX3_REG_DCBDATA0, val << 16);
    246 }
    247 #endif
    248 
    249 static u_int32_t
    250 xmap9_read(struct newport_devconfig *dc, int crs)
    251 {
    252 	rex3_write(dc, REX3_REG_DCBMODE,
    253 		REX3_DCBMODE_DW_1 |
    254 		(NEWPORT_DCBADDR_XMAP_0 << REX3_DCBMODE_DCBADDR_SHIFT) |
    255 		(crs << REX3_DCBMODE_DCBCRS_SHIFT) |
    256 		(3 << REX3_DCBMODE_CSWIDTH_SHIFT) |
    257 		(2 << REX3_DCBMODE_CSHOLD_SHIFT) |
    258 		(1 << REX3_DCBMODE_CSSETUP_SHIFT));
    259 	return rex3_read(dc, REX3_REG_DCBDATA0);
    260 }
    261 
    262 static void
    263 xmap9_write(struct newport_devconfig *dc, int crs, uint8_t val)
    264 {
    265 	rex3_write(dc, REX3_REG_DCBMODE,
    266 	    REX3_DCBMODE_DW_1 |
    267 	    (NEWPORT_DCBADDR_XMAP_BOTH << REX3_DCBMODE_DCBADDR_SHIFT) |
    268 	    (crs << REX3_DCBMODE_DCBCRS_SHIFT) |
    269 	    (3 << REX3_DCBMODE_CSWIDTH_SHIFT) |
    270 	    (2 << REX3_DCBMODE_CSHOLD_SHIFT) |
    271 	    (1 << REX3_DCBMODE_CSSETUP_SHIFT));
    272 
    273 	rex3_write(dc, REX3_REG_DCBDATA0, val << 24);
    274 }
    275 
    276 static void
    277 xmap9_write_mode(struct newport_devconfig *dc, uint8_t index, uint32_t mode)
    278 {
    279 	rex3_write(dc, REX3_REG_DCBMODE,
    280 	    REX3_DCBMODE_DW_4 |
    281 	    (NEWPORT_DCBADDR_XMAP_BOTH << REX3_DCBMODE_DCBADDR_SHIFT) |
    282 	    (XMAP9_DCBCRS_MODE_SETUP << REX3_DCBMODE_DCBCRS_SHIFT) |
    283 	    (3 << REX3_DCBMODE_CSWIDTH_SHIFT) |
    284 	    (2 << REX3_DCBMODE_CSHOLD_SHIFT) |
    285 	    (1 << REX3_DCBMODE_CSSETUP_SHIFT));
    286 
    287 	rex3_write(dc, REX3_REG_DCBDATA0, (index << 24) | mode);
    288 }
    289 
    290 /**** Helper functions ****/
    291 static void
    292 newport_fill_rectangle(struct newport_devconfig *dc, int x1, int y1, int x2,
    293     int y2, uint8_t color)
    294 {
    295 	rex3_wait_gfifo(dc);
    296 
    297 	rex3_write(dc, REX3_REG_DRAWMODE0, REX3_DRAWMODE0_OPCODE_DRAW |
    298 	    REX3_DRAWMODE0_ADRMODE_BLOCK | REX3_DRAWMODE0_DOSETUP |
    299 	    REX3_DRAWMODE0_STOPONX | REX3_DRAWMODE0_STOPONY);
    300 	rex3_write(dc, REX3_REG_DRAWMODE1,
    301 	    REX3_DRAWMODE1_PLANES_CI |
    302 	    REX3_DRAWMODE1_DD_DD8 |
    303 	    REX3_DRAWMODE1_RWPACKED |
    304 	    REX3_DRAWMODE1_HD_HD8 |
    305 	    REX3_DRAWMODE1_COMPARE_LT |
    306 	    REX3_DRAWMODE1_COMPARE_EQ |
    307 	    REX3_DRAWMODE1_COMPARE_GT |
    308 	    REX3_DRAWMODE1_LO_SRC);
    309 	rex3_write(dc, REX3_REG_WRMASK, 0xffffffff);
    310 	rex3_write(dc, REX3_REG_COLORI, color);
    311 	rex3_write(dc, REX3_REG_XYSTARTI, (x1 << REX3_XYSTARTI_XSHIFT) | y1);
    312 
    313 	rex3_write_go(dc, REX3_REG_XYENDI, (x2 << REX3_XYENDI_XSHIFT) | y2);
    314 }
    315 
    316 static void
    317 newport_bitblt(struct newport_devconfig *dc, int xs, int ys, int xd,
    318     int yd, int wi, int he, int rop)
    319 {
    320 	int xe, ye;
    321 	uint32_t tmp;
    322 
    323 	rex3_wait_gfifo(dc);
    324 	if (yd > ys) {
    325 		/* need to copy bottom up */
    326 		ye = ys;
    327 		yd += he - 1;
    328 		ys += he - 1;
    329 	} else
    330 		ye = ys + he - 1;
    331 
    332 	if (xd > xs) {
    333 		/* need to copy right to left */
    334 		xe = xs;
    335 		xd += wi - 1;
    336 		xs += wi - 1;
    337 	} else
    338 		xe = xs + wi - 1;
    339 
    340 	rex3_write(dc, REX3_REG_DRAWMODE0, REX3_DRAWMODE0_OPCODE_SCR2SCR |
    341 	    REX3_DRAWMODE0_ADRMODE_BLOCK | REX3_DRAWMODE0_DOSETUP |
    342 	    REX3_DRAWMODE0_STOPONX | REX3_DRAWMODE0_STOPONY);
    343 	rex3_write(dc, REX3_REG_DRAWMODE1,
    344 	    REX3_DRAWMODE1_PLANES_CI |
    345 	    REX3_DRAWMODE1_DD_DD8 |
    346 	    REX3_DRAWMODE1_RWPACKED |
    347 	    REX3_DRAWMODE1_HD_HD8 |
    348 	    REX3_DRAWMODE1_COMPARE_LT |
    349 	    REX3_DRAWMODE1_COMPARE_EQ |
    350 	    REX3_DRAWMODE1_COMPARE_GT |
    351 	    ((rop << 28) & REX3_DRAWMODE1_LOGICOP_MASK));
    352 	rex3_write(dc, REX3_REG_XYSTARTI, (xs << REX3_XYSTARTI_XSHIFT) | ys);
    353 	rex3_write(dc, REX3_REG_XYENDI, (xe << REX3_XYENDI_XSHIFT) | ye);
    354 
    355 	tmp = (yd - ys) & 0xffff;
    356 	tmp |= (xd - xs) << REX3_XYMOVE_XSHIFT;
    357 
    358 	rex3_write_go(dc, REX3_REG_XYMOVE, tmp);
    359 }
    360 
    361 static void
    362 newport_cmap_setrgb(struct newport_devconfig *dc, int index, uint8_t r,
    363     uint8_t g, uint8_t b)
    364 {
    365 	rex3_write(dc, REX3_REG_DCBMODE,
    366 	    REX3_DCBMODE_DW_2 |
    367 	    REX3_DCBMODE_ENCRSINC |
    368 	    (NEWPORT_DCBADDR_CMAP_BOTH << REX3_DCBMODE_DCBADDR_SHIFT) |
    369 	    (CMAP_DCBCRS_ADDRESS_LOW << REX3_DCBMODE_DCBCRS_SHIFT) |
    370 	    (1 << REX3_DCBMODE_CSWIDTH_SHIFT) |
    371 	    (1 << REX3_DCBMODE_CSHOLD_SHIFT) |
    372 	    (1 << REX3_DCBMODE_CSSETUP_SHIFT) |
    373 	    REX3_DCBMODE_SWAPENDIAN);
    374 
    375 	rex3_write(dc, REX3_REG_DCBDATA0, index << 16);
    376 
    377 	rex3_write(dc, REX3_REG_DCBMODE,
    378 	    REX3_DCBMODE_DW_3 |
    379 	    (NEWPORT_DCBADDR_CMAP_BOTH << REX3_DCBMODE_DCBADDR_SHIFT) |
    380 	    (CMAP_DCBCRS_PALETTE << REX3_DCBMODE_DCBCRS_SHIFT) |
    381 	    (1 << REX3_DCBMODE_CSWIDTH_SHIFT) |
    382 	    (1 << REX3_DCBMODE_CSHOLD_SHIFT) |
    383 	    (1 << REX3_DCBMODE_CSSETUP_SHIFT));
    384 
    385 	rex3_write(dc, REX3_REG_DCBDATA0, (r << 24) + (g << 16) + (b << 8));
    386 }
    387 
    388 static void
    389 newport_get_resolution(struct newport_devconfig *dc)
    390 {
    391 	uint16_t vep,lines;
    392 	uint16_t linep,cols;
    393 	uint16_t data;
    394 
    395 	vep = vc2_read_ireg(dc, VC2_IREG_VIDEO_ENTRY);
    396 
    397 	dc->dc_xres = 0;
    398 	dc->dc_yres = 0;
    399 
    400 	for (;;) {
    401 		/* Iterate over runs in video timing table */
    402 
    403 		cols = 0;
    404 
    405 		linep = vc2_read_ram(dc, vep++);
    406 		lines = vc2_read_ram(dc, vep++);
    407 
    408 		if (lines == 0)
    409 			break;
    410 
    411 		do {
    412 			/* Iterate over state runs in line sequence table */
    413 
    414 			data = vc2_read_ram(dc, linep++);
    415 
    416 			if ((data & 0x0001) == 0)
    417 				cols += (data >> 7) & 0xfe;
    418 
    419 			if ((data & 0x0080) == 0)
    420 				data = vc2_read_ram(dc, linep++);
    421 		} while ((data & 0x8000) == 0);
    422 
    423 		if (cols != 0) {
    424 			if (cols > dc->dc_xres)
    425 				dc->dc_xres = cols;
    426 
    427 			dc->dc_yres += lines;
    428 		}
    429 	}
    430 }
    431 
    432 static void
    433 newport_setup_hw(struct newport_devconfig *dc)
    434 {
    435 	uint16_t __unused(curp), tmp;
    436 	int i;
    437 	uint32_t scratch;
    438 
    439 	/* Get various revisions */
    440 	rex3_write(dc, REX3_REG_DCBMODE,
    441 	    REX3_DCBMODE_DW_1 |
    442 	    (NEWPORT_DCBADDR_CMAP_0 << REX3_DCBMODE_DCBADDR_SHIFT) |
    443 	    (CMAP_DCBCRS_REVISION << REX3_DCBMODE_DCBCRS_SHIFT) |
    444 	    (1 << REX3_DCBMODE_CSWIDTH_SHIFT) |
    445 	    (1 << REX3_DCBMODE_CSHOLD_SHIFT) |
    446 	    (1 << REX3_DCBMODE_CSSETUP_SHIFT));
    447 
    448 	scratch = vc2_read_ireg(dc, VC2_IREG_CONFIG);
    449 	dc->dc_vc2rev = (scratch & VC2_IREG_CONFIG_REVISION) >> 5;
    450 
    451 	scratch = rex3_read(dc, REX3_REG_DCBDATA0);
    452 
    453 	dc->dc_boardrev = (scratch >> 28) & 0x07;
    454 	dc->dc_cmaprev = scratch & 0x07;
    455 	dc->dc_xmaprev = xmap9_read(dc, XMAP9_DCBCRS_REVISION) & 0x07;
    456 	dc->dc_depth = ( (dc->dc_boardrev > 1) && (scratch & 0x80)) ? 8 : 24;
    457 
    458 	/* Setup cursor glyph */
    459 	curp = vc2_read_ireg(dc, VC2_IREG_CURSOR_ENTRY);
    460 
    461 	/* Setup VC2 to a known state */
    462 	tmp = vc2_read_ireg(dc, VC2_IREG_CONTROL) & VC2_CONTROL_INTERLACE;
    463 	vc2_write_ireg(dc, VC2_IREG_CONTROL, tmp |
    464 	    VC2_CONTROL_DISPLAY_ENABLE |
    465 	    VC2_CONTROL_VTIMING_ENABLE |
    466 	    VC2_CONTROL_DID_ENABLE |
    467 	    VC2_CONTROL_CURSORFUNC_ENABLE /*|
    468 	    VC2_CONTROL_CURSOR_ENABLE*/);
    469 
    470 	/* Setup XMAP9s */
    471 	xmap9_write(dc, XMAP9_DCBCRS_CONFIG,
    472 	    XMAP9_CONFIG_8BIT_SYSTEM | XMAP9_CONFIG_RGBMAP_CI);
    473 
    474 	xmap9_write(dc, XMAP9_DCBCRS_CURSOR_CMAP, 0);
    475 
    476 	xmap9_write_mode(dc, 0,
    477 	    XMAP9_MODE_GAMMA_BYPASS |
    478 	    XMAP9_MODE_PIXSIZE_8BPP);
    479 	xmap9_write(dc, XMAP9_DCBCRS_MODE_SELECT, 0);
    480 
    481 	/* Setup REX3 */
    482 	rex3_write(dc, REX3_REG_XYWIN, (4096 << 16) | 4096);
    483 	rex3_write(dc, REX3_REG_TOPSCAN, 0x3ff); /* XXX Why? XXX */
    484 
    485 	/* Setup CMAP */
    486 	for (i = 0; i < 256; i++)
    487 		newport_cmap_setrgb(dc, i, rasops_cmap[i * 3],
    488 		    rasops_cmap[i * 3 + 1], rasops_cmap[i * 3 + 2]);
    489 }
    490 
    491 /**** Attach routines ****/
    492 static int
    493 newport_match(device_t parent, struct cfdata *self, void *aux)
    494 {
    495 	struct gio_attach_args *ga = aux;
    496 
    497 	/* newport doesn't decode all addresses */
    498 	if (ga->ga_addr != 0x1f000000 && ga->ga_addr != 0x1f400000 &&
    499 	    ga->ga_addr != 0x1f800000 && ga->ga_addr != 0x1fc00000)
    500 		return 0;
    501 
    502 	/* Don't do the destructive probe if we're already attached */
    503 	if (newport_is_console && ga->ga_addr == newport_console_dc.dc_addr)
    504 		return 1;
    505 
    506 	if (platform.badaddr(
    507 	    (void *)(ga->ga_ioh + NEWPORT_REX3_OFFSET + REX3_REG_XSTARTI),
    508 	    sizeof(uint32_t)))
    509 		return 0;
    510 	if (platform.badaddr(
    511 	    (void *)(ga->ga_ioh + NEWPORT_REX3_OFFSET + REX3_REG_XSTART),
    512 	    sizeof(uint32_t)))
    513 		return 0;
    514 
    515 	/* Ugly, this probe is destructive, blame SGI... */
    516 	/* XXX Should be bus_space_peek/bus_space_poke XXX */
    517 	bus_space_write_4(ga->ga_iot, ga->ga_ioh,
    518 	    NEWPORT_REX3_OFFSET + REX3_REG_XSTARTI, 0x12345678);
    519 	if (bus_space_read_4(ga->ga_iot, ga->ga_ioh,
    520 	      NEWPORT_REX3_OFFSET + REX3_REG_XSTART)
    521 	    != ((0x12345678 & 0xffff) << 11))
    522 		return 0;
    523 
    524 	return 1;
    525 }
    526 
    527 static void
    528 newport_attach_common(struct newport_devconfig *dc, struct gio_attach_args *ga)
    529 {
    530 	dc->dc_addr = ga->ga_addr;
    531 
    532 	dc->dc_st = ga->ga_iot;
    533 	dc->dc_sh = ga->ga_ioh;
    534 
    535 	wsfont_init();
    536 
    537 	dc->dc_font = wsfont_find(NULL, 8, 16, 0, WSDISPLAY_FONTORDER_L2R,
    538 	    WSDISPLAY_FONTORDER_L2R, WSFONT_FIND_BITMAP);
    539 	if (dc->dc_font < 0)
    540 		panic("newport_attach_common: no suitable fonts");
    541 
    542 	if (wsfont_lock(dc->dc_font, &dc->dc_fontdata))
    543 		panic("newport_attach_common: unable to lock font data");
    544 
    545 	newport_setup_hw(dc);
    546 
    547 	newport_get_resolution(dc);
    548 
    549 	newport_fill_rectangle(dc, 0, 0, dc->dc_xres, dc->dc_yres, 0);
    550 	dc->dc_screen = &newport_screen;
    551 
    552 	dc->dc_mode = WSDISPLAYIO_MODE_EMUL;
    553 }
    554 
    555 static void
    556 newport_attach(device_t parent, device_t self, void *aux)
    557 {
    558 	struct gio_attach_args *ga = aux;
    559 	struct newport_softc *sc = device_private(self);
    560 	struct wsemuldisplaydev_attach_args wa;
    561 	unsigned long defattr;
    562 
    563 	sc->sc_dev = self;
    564 	if (newport_is_console && ga->ga_addr == newport_console_dc.dc_addr) {
    565 		wa.console = 1;
    566 		sc->sc_dc = &newport_console_dc;
    567 	} else {
    568 		wa.console = 0;
    569 		sc->sc_dc = malloc(sizeof(struct newport_devconfig),
    570 		    M_DEVBUF, M_WAITOK | M_ZERO);
    571 		if (sc->sc_dc == NULL)
    572 			panic("newport_attach: out of memory");
    573 
    574 		newport_attach_common(sc->sc_dc, ga);
    575 	}
    576 
    577 	aprint_naive(": Display adapter\n");
    578 
    579 	aprint_normal(": SGI NG1 (board revision %d, cmap revision %d, xmap revision %d, vc2 revision %d), depth %d\n",
    580 	    sc->sc_dc->dc_boardrev, sc->sc_dc->dc_cmaprev,
    581 	    sc->sc_dc->dc_xmaprev, sc->sc_dc->dc_vc2rev, sc->sc_dc->dc_depth);
    582 	vcons_init(&sc->sc_dc->dc_vd, sc->sc_dc, sc->sc_dc->dc_screen,
    583 	    &newport_accessops);
    584 	sc->sc_dc->dc_vd.init_screen = newport_init_screen;
    585 	if (newport_is_console) {
    586 		newport_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC;
    587 		vcons_init_screen(&sc->sc_dc->dc_vd, &newport_console_screen,
    588 		    1, &defattr);
    589 		sc->sc_dc->dc_screen->textops =
    590 		    &newport_console_screen.scr_ri.ri_ops;
    591 		memcpy(&newport_textops, &newport_console_screen.scr_ri.ri_ops,
    592 		    sizeof(struct wsdisplay_emulops));
    593 		vcons_replay_msgbuf(&newport_console_screen);
    594 	}
    595 	wa.scrdata = &newport_screenlist;
    596 	wa.accessops = &newport_accessops;
    597 	wa.accesscookie = &sc->sc_dc->dc_vd;
    598 
    599 	config_found(sc->sc_dev, &wa, wsemuldisplaydevprint);
    600 }
    601 
    602 int
    603 newport_cnattach(struct gio_attach_args *ga)
    604 {
    605 	struct rasops_info *ri = &newport_console_screen.scr_ri;
    606 	long defattr = NEWPORT_ATTR_ENCODE(WSCOL_WHITE, WSCOL_BLACK);
    607 
    608 	if (!newport_match(NULL, NULL, ga)) {
    609 		return ENXIO;
    610 	}
    611 
    612 	newport_attach_common(&newport_console_dc, ga);
    613 
    614 	newport_screen.ncols = newport_console_dc.dc_xres / 8;
    615 	newport_screen.nrows = newport_console_dc.dc_yres / 16;
    616 
    617 	ri->ri_hw = &newport_console_screen;
    618 	ri->ri_depth = newport_console_dc.dc_depth;
    619 	ri->ri_width = newport_console_dc.dc_xres;
    620 	ri->ri_height = newport_console_dc.dc_yres;
    621 	ri->ri_stride = newport_console_dc.dc_xres; /* XXX */
    622 	ri->ri_flg = RI_CENTER | RI_FULLCLEAR;
    623 	ri->ri_ops.copyrows  = newport_copyrows;
    624 	ri->ri_ops.eraserows = newport_eraserows;
    625 	ri->ri_ops.copycols  = newport_copycols;
    626 	ri->ri_ops.erasecols = newport_erasecols;
    627 	ri->ri_ops.cursor    = newport_cursor_dummy;
    628 	ri->ri_ops.mapchar   = newport_mapchar;
    629 	ri->ri_ops.putchar   = newport_putchar;
    630 	ri->ri_ops.allocattr = newport_allocattr;
    631 	ri->ri_font = newport_console_dc.dc_fontdata;
    632 	newport_console_screen.scr_cookie = &newport_console_dc;
    633 
    634 	wsdisplay_cnattach(&newport_screen, ri, 0, 0, defattr);
    635 
    636 	newport_is_console = 1;
    637 
    638 	return 0;
    639 }
    640 
    641 static void
    642 newport_init_screen(void *cookie, struct vcons_screen *scr,
    643     int existing, long *defattr)
    644 {
    645 	struct newport_devconfig *dc = cookie;
    646 	struct rasops_info *ri = &scr->scr_ri;
    647 
    648 	ri->ri_depth = dc->dc_depth;
    649 	ri->ri_width = dc->dc_xres;
    650 	ri->ri_height = dc->dc_yres;
    651 	ri->ri_stride = dc->dc_xres; /* XXX */
    652 	ri->ri_flg = RI_CENTER;
    653 
    654 	/*&ri->ri_bits = (char *)sc->sc_fb.fb_pixels;*/
    655 
    656 	rasops_init(ri, 0, 0);
    657 	ri->ri_caps = WSSCREEN_WSCOLORS;
    658 
    659 	rasops_reconfig(ri, dc->dc_yres / ri->ri_font->fontheight,
    660 		    dc->dc_xres / ri->ri_font->fontwidth);
    661 
    662 	ri->ri_hw = scr;
    663 	ri->ri_ops.copyrows  = newport_copyrows;
    664 	ri->ri_ops.eraserows = newport_eraserows;
    665 	ri->ri_ops.copycols  = newport_copycols;
    666 	ri->ri_ops.erasecols = newport_erasecols;
    667 	ri->ri_ops.cursor    = newport_cursor;
    668 	ri->ri_ops.mapchar   = newport_mapchar;
    669 	ri->ri_ops.putchar   = newport_putchar;
    670 	ri->ri_ops.allocattr = newport_allocattr;
    671 }
    672 
    673 /**** wsdisplay textops ****/
    674 static void
    675 newport_cursor_dummy(void *c, int on, int row, int col)
    676 {
    677 }
    678 
    679 static void
    680 newport_cursor(void *c, int on, int row, int col)
    681 {
    682 	struct rasops_info *ri = c;
    683 	struct vcons_screen *scr = ri->ri_hw;
    684 	struct newport_devconfig *dc = scr->scr_cookie;
    685 	int x, y, wi,he;
    686 
    687 	wi = ri->ri_font->fontwidth;
    688 	he = ri->ri_font->fontheight;
    689 
    690 	if (ri->ri_flg & RI_CURSOR) {
    691 		x = ri->ri_ccol * wi + ri->ri_xorigin;
    692 		y = ri->ri_crow * he + ri->ri_yorigin;
    693 		newport_bitblt(dc, x, y, x, y, wi, he, 12);
    694 		ri->ri_flg &= ~RI_CURSOR;
    695 	}
    696 
    697 	ri->ri_crow = row;
    698 	ri->ri_ccol = col;
    699 
    700 	if (on)
    701 	{
    702 		x = ri->ri_ccol * wi + ri->ri_xorigin;
    703 		y = ri->ri_crow * he + ri->ri_yorigin;
    704 		newport_bitblt(dc, x, y, x, y, wi, he, 12);
    705 		ri->ri_flg |= RI_CURSOR;
    706 	}
    707 }
    708 
    709 static int
    710 newport_mapchar(void *c, int ch, unsigned int *cp)
    711 {
    712 	struct rasops_info *ri = c;
    713 	struct vcons_screen *scr = ri->ri_hw;
    714 	struct newport_devconfig *dc = scr->scr_cookie;
    715 
    716 	if (dc->dc_fontdata->encoding != WSDISPLAY_FONTENC_ISO) {
    717 		ch = wsfont_map_unichar(dc->dc_fontdata, ch);
    718 
    719 		if (ch < 0)
    720 			goto fail;
    721 	}
    722 
    723 	if (ch < dc->dc_fontdata->firstchar ||
    724 	    ch >= dc->dc_fontdata->firstchar + dc->dc_fontdata->numchars)
    725 		goto fail;
    726 
    727 	*cp = ch;
    728 	return 5;
    729 
    730 fail:
    731 	*cp = ' ';
    732 	return 0;
    733 }
    734 
    735 static void
    736 newport_putchar(void *c, int row, int col, u_int ch, long attr)
    737 {
    738 	struct rasops_info *ri = c;
    739 	struct vcons_screen *scr = ri->ri_hw;
    740 	struct newport_devconfig *dc = scr->scr_cookie;
    741 	struct wsdisplay_font *font = ri->ri_font;
    742 	uint8_t *bitmap = (u_int8_t *)font->data + (ch - font->firstchar) *
    743 	    font->fontheight * font->stride;
    744 	uint32_t pattern;
    745 	int i;
    746 	int x = col * font->fontwidth + ri->ri_xorigin;
    747 	int y = row * font->fontheight + ri->ri_yorigin;
    748 
    749 	rex3_wait_gfifo(dc);
    750 
    751 	rex3_write(dc, REX3_REG_DRAWMODE0, REX3_DRAWMODE0_OPCODE_DRAW |
    752 	    REX3_DRAWMODE0_ADRMODE_BLOCK | REX3_DRAWMODE0_STOPONX |
    753 	    REX3_DRAWMODE0_ENZPATTERN | REX3_DRAWMODE0_ZPOPAQUE);
    754 
    755 	rex3_write(dc, REX3_REG_DRAWMODE1,
    756 	    REX3_DRAWMODE1_PLANES_CI |
    757 	    REX3_DRAWMODE1_DD_DD8 |
    758 	    REX3_DRAWMODE1_RWPACKED |
    759 	    REX3_DRAWMODE1_HD_HD8 |
    760 	    REX3_DRAWMODE1_COMPARE_LT |
    761 	    REX3_DRAWMODE1_COMPARE_EQ |
    762 	    REX3_DRAWMODE1_COMPARE_GT |
    763 	    REX3_DRAWMODE1_LO_SRC);
    764 
    765 	rex3_write(dc, REX3_REG_XYSTARTI, (x << REX3_XYSTARTI_XSHIFT) | y);
    766 	rex3_write(dc, REX3_REG_XYENDI,
    767 	    (x + font->fontwidth - 1) << REX3_XYENDI_XSHIFT);
    768 
    769 	rex3_write(dc, REX3_REG_COLORI, NEWPORT_ATTR_FG(attr));
    770 	rex3_write(dc, REX3_REG_COLORBACK, NEWPORT_ATTR_BG(attr));
    771 
    772 	rex3_write(dc, REX3_REG_WRMASK, 0xffffffff);
    773 
    774 	for (i = 0; i < font->fontheight; i++) {
    775 		/* XXX Works only with font->fontwidth == 8 XXX */
    776 		pattern = *bitmap << 24;
    777 
    778 		rex3_write_go(dc, REX3_REG_ZPATTERN, pattern);
    779 
    780 		bitmap += font->stride;
    781 	}
    782 	rex3_wait_gfifo(dc);
    783 }
    784 
    785 static void
    786 newport_copycols(void *c, int row, int srccol, int dstcol, int ncols)
    787 {
    788 	struct rasops_info *ri = c;
    789 	struct vcons_screen *scr = ri->ri_hw;
    790 	struct newport_devconfig *dc = scr->scr_cookie;
    791 	int32_t xs, xd, y, width, height;
    792 
    793 	xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol;
    794 	xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol;
    795 	y = ri->ri_yorigin + ri->ri_font->fontheight * row;
    796 	width = ri->ri_font->fontwidth * ncols;
    797 	height = ri->ri_font->fontheight;
    798 	newport_bitblt(dc, xs, y, xd, y, width, height, 3);
    799 }
    800 
    801 static void
    802 newport_erasecols(void *c, int row, int startcol, int ncols,
    803     long attr)
    804 {
    805 	struct rasops_info *ri = c;
    806 	struct vcons_screen *scr = ri->ri_hw;
    807 	struct newport_devconfig *dc = scr->scr_cookie;
    808 	struct wsdisplay_font *font = dc->dc_fontdata;
    809 
    810 	newport_fill_rectangle(dc,
    811 	    startcol * font->fontwidth,				/* x1 */
    812 	    row * font->fontheight,				/* y1 */
    813 	    (startcol + ncols) * font->fontwidth - 1,		/* x2 */
    814 	    (row + 1) * font->fontheight - 1,			/* y2 */
    815 	    NEWPORT_ATTR_BG(attr));
    816 }
    817 
    818 static void
    819 newport_copyrows(void *c, int srcrow, int dstrow, int nrows)
    820 {
    821 	struct rasops_info *ri = c;
    822 	struct vcons_screen *scr = ri->ri_hw;
    823 	struct newport_devconfig *dc = scr->scr_cookie;
    824 	int32_t x, ys, yd, width, height;
    825 
    826 	x = ri->ri_xorigin;
    827 	ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow;
    828 	yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow;
    829 	width = ri->ri_emuwidth;
    830 	height = ri->ri_font->fontheight * nrows;
    831 
    832 	newport_bitblt(dc, x, ys, x, yd, width, height, 3);
    833 }
    834 
    835 static void
    836 newport_eraserows(void *c, int startrow, int nrows, long attr)
    837 {
    838 	struct rasops_info *ri = c;
    839 	struct vcons_screen *scr = ri->ri_hw;
    840 	struct newport_devconfig *dc = scr->scr_cookie;
    841 	struct wsdisplay_font *font = dc->dc_fontdata;
    842 
    843 	newport_fill_rectangle(dc,
    844 	    0,							/* x1 */
    845 	    startrow * font->fontheight,			/* y1 */
    846 	    dc->dc_xres,					/* x2 */
    847 	    (startrow + nrows) * font->fontheight - 1,		/* y2 */
    848 	    NEWPORT_ATTR_BG(attr));
    849 }
    850 
    851 static int
    852 newport_allocattr(void *c, int fg, int bg, int flags, long *attr)
    853 {
    854 	if (flags & WSATTR_BLINK)
    855 		return EINVAL;
    856 
    857 	if ((flags & WSATTR_WSCOLORS) == 0) {
    858 		fg = WSCOL_WHITE;
    859 		bg = WSCOL_BLACK;
    860 	}
    861 
    862 	if (flags & WSATTR_HILIT)
    863 		fg += 8;
    864 
    865 	if (flags & WSATTR_REVERSE) {
    866 		int tmp = fg;
    867 		fg = bg;
    868 		bg = tmp;
    869 	}
    870 
    871 	*attr = NEWPORT_ATTR_ENCODE(fg, bg);
    872 
    873 	return 0;
    874 }
    875 
    876 /**** wsdisplay accessops ****/
    877 
    878 static int
    879 newport_ioctl(void *v, void *vs, u_long cmd, void *data, int flag,
    880 	struct lwp *l)
    881 {
    882 	struct vcons_data *vd;
    883 	struct newport_devconfig *dc;
    884 	struct vcons_screen *__unused(ms);
    885 	int nmode;
    886 
    887 	vd = (struct vcons_data *)v;
    888 	dc = (struct newport_devconfig *)vd->cookie;
    889 	ms = (struct vcons_screen *)vd->active;
    890 
    891 #define FBINFO (*(struct wsdisplay_fbinfo*)data)
    892 
    893 	switch (cmd) {
    894 	case WSDISPLAYIO_GINFO:
    895 		FBINFO.width  = dc->dc_xres;
    896 		FBINFO.height = dc->dc_yres;
    897 		FBINFO.depth  = dc->dc_depth;
    898 		FBINFO.cmsize = 1 << FBINFO.depth;
    899 		return 0;
    900 	case WSDISPLAYIO_GTYPE:
    901 		*(u_int *)data = WSDISPLAY_TYPE_NEWPORT;
    902 		return 0;
    903 	case WSDISPLAYIO_SMODE:
    904 		nmode = *(int *)data;
    905 		if (nmode != dc->dc_mode) {
    906 			dc->dc_mode = nmode;
    907 			if (nmode == WSDISPLAYIO_MODE_EMUL) {
    908 				rex3_wait_gfifo(dc);
    909 				newport_setup_hw(dc);
    910 				vcons_redraw_screen(vd->active);
    911 			}
    912 		}
    913 		return 0;
    914 	}
    915 	return EPASSTHROUGH;
    916 }
    917 
    918 static paddr_t
    919 newport_mmap(void *v, void *vs, off_t offset, int prot)
    920 {
    921 	struct vcons_data *vd;
    922 	struct newport_devconfig *dc;
    923 
    924 	vd = (struct vcons_data *)v;
    925 	dc = (struct newport_devconfig *)vd->cookie;
    926 
    927 	if ( offset >= 0xfffff)
    928 		return -1;
    929 
    930 	return bus_space_mmap(dc->dc_st, dc->dc_addr, offset, prot, 0);
    931 }
    932