1 /* $NetBSD: grtwo.c,v 1.19 2023/12/13 20:53:14 andvar Exp $ */
2
3 /*
4 * Copyright (c) 2004 Christopher SEKIYA
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. The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 *
29 * <<Id: LICENSE_GC,v 1.1 2001/10/01 23:24:05 cgd Exp>>
30 */
31
32 /* wscons driver for SGI GR2 family of framebuffers
33 *
34 * Heavily based on the newport wscons driver.
35 */
36
37 #include <sys/cdefs.h>
38 __KERNEL_RCSID(0, "$NetBSD: grtwo.c,v 1.19 2023/12/13 20:53:14 andvar Exp $");
39
40 #include <sys/param.h>
41 #include <sys/systm.h>
42 #include <sys/device.h>
43 #include <sys/kmem.h>
44
45 #include <machine/sysconf.h>
46
47 #include <dev/wscons/wsconsio.h>
48 #include <dev/wscons/wsdisplayvar.h>
49 #include <dev/wsfont/wsfont.h>
50
51 #include <sgimips/gio/giovar.h>
52 #include <sgimips/gio/grtwovar.h>
53 #include <sgimips/gio/grtworeg.h>
54
55 #include <sgimips/dev/int2var.h>
56
57 struct grtwo_softc {
58 struct grtwo_devconfig *sc_dc;
59 };
60
61 struct grtwo_devconfig {
62 u_int32_t dc_addr;
63
64 bus_space_tag_t iot;
65 bus_space_handle_t ioh;
66
67 u_int8_t boardrev;
68 u_int8_t backendrev;
69 int hq2rev;
70 int ge7rev;
71 int vc1rev;
72 int zbuffer;
73 int cmaprev;
74 int xmaprev;
75 int rexrev;
76 int xres;
77 int yres;
78 int depth;
79 int monitor;
80
81 int dc_font;
82 struct wsdisplay_font *dc_fontdata;
83 };
84
85 static int grtwo_match(device_t, cfdata_t, void *);
86 static void grtwo_attach(device_t, device_t, void *);
87
88 CFATTACH_DECL_NEW(grtwo, sizeof(struct grtwo_softc),
89 grtwo_match, grtwo_attach, NULL, NULL);
90
91 /* textops */
92 static void grtwo_cursor(void *, int, int, int);
93 static int grtwo_mapchar(void *, int, unsigned int *);
94 static void grtwo_putchar(void *, int, int, u_int, long);
95 static void grtwo_copycols(void *, int, int, int, int);
96 static void grtwo_erasecols(void *, int, int, int, long);
97 static void grtwo_copyrows(void *, int, int, int);
98 static void grtwo_eraserows(void *, int, int, long);
99 static int grtwo_allocattr(void *, int, int, int, long *);
100
101 /* accessops */
102 static int grtwo_ioctl(void *, void *, u_long, void *, int, struct lwp *);
103 static paddr_t grtwo_mmap(void *, void *, off_t, int);
104 static int
105 grtwo_alloc_screen(void *, const struct wsscreen_descr *,
106 void **, int *, int *, long *);
107 static void grtwo_free_screen(void *, void *);
108 static int
109 grtwo_show_screen(void *, void *, int, void (*) (void *, int, int), void *);
110
111 static int grtwo_intr0(void *);
112 static int grtwo_intr6(void *);
113
114 static const struct wsdisplay_emulops grtwo_textops = {
115 .cursor = grtwo_cursor,
116 .mapchar = grtwo_mapchar,
117 .putchar = grtwo_putchar,
118 .copycols = grtwo_copycols,
119 .erasecols = grtwo_erasecols,
120 .copyrows = grtwo_copyrows,
121 .eraserows = grtwo_eraserows,
122 .allocattr = grtwo_allocattr
123 };
124
125 static const struct wsdisplay_accessops grtwo_accessops = {
126 .ioctl = grtwo_ioctl,
127 .mmap = grtwo_mmap,
128 .alloc_screen = grtwo_alloc_screen,
129 .free_screen = grtwo_free_screen,
130 .show_screen = grtwo_show_screen,
131 };
132
133 static const struct wsscreen_descr grtwo_screen = {
134 .name = "1280x1024",
135 .ncols = 160,
136 .nrows = 64, /* 40 */
137 .textops = &grtwo_textops,
138 .fontwidth = 8,
139 .fontheight = 16,
140 .capabilities = WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_REVERSE
141 };
142
143 static const struct wsscreen_descr *_grtwo_screenlist[] = {
144 &grtwo_screen
145 };
146
147 static const struct wsscreen_list grtwo_screenlist = {
148 sizeof(_grtwo_screenlist) / sizeof(struct wsscreen_descr *),
149 _grtwo_screenlist
150 };
151
152 static struct grtwo_devconfig grtwo_console_dc;
153 static int grtwo_is_console = 0;
154
155 #define GR2_ATTR_ENCODE(fg,bg) (((fg) << 8) | (bg))
156 #define GR2_ATTR_BG(a) ((a) & 0xff)
157 #define GR2_ATTR_FG(a) (((a) >> 8) & 0xff)
158
159 #if 0
160 static const u_int16_t grtwo_cursor_data[128] = {
161 /* Bit 0 */
162 0xff00, 0x0000,
163 0xff00, 0x0000,
164 0xff00, 0x0000,
165 0xff00, 0x0000,
166 0xff00, 0x0000,
167 0xff00, 0x0000,
168 0xff00, 0x0000,
169 0xff00, 0x0000,
170 0xff00, 0x0000,
171 0xff00, 0x0000,
172 0xff00, 0x0000,
173 0xff00, 0x0000,
174 0xff00, 0x0000,
175 0xff00, 0x0000,
176 0xff00, 0x0000,
177 0xff00, 0x0000,
178 0x0000, 0x0000,
179 0x0000, 0x0000,
180 0x0000, 0x0000,
181 0x0000, 0x0000,
182 0x0000, 0x0000,
183 0x0000, 0x0000,
184 0x0000, 0x0000,
185 0x0000, 0x0000,
186 0x0000, 0x0000,
187 0x0000, 0x0000,
188 0x0000, 0x0000,
189 0x0000, 0x0000,
190 0x0000, 0x0000,
191 0x0000, 0x0000,
192 0x0000, 0x0000,
193 0x0000, 0x0000,
194
195 /* Bit 1 */
196 0x0000, 0x0000,
197 0x0000, 0x0000,
198 0x0000, 0x0000,
199 0x0000, 0x0000,
200 0x0000, 0x0000,
201 0x0000, 0x0000,
202 0x0000, 0x0000,
203 0x0000, 0x0000,
204 0x0000, 0x0000,
205 0x0000, 0x0000,
206 0x0000, 0x0000,
207 0x0000, 0x0000,
208 0x0000, 0x0000,
209 0x0000, 0x0000,
210 0x0000, 0x0000,
211 0x0000, 0x0000,
212 0x0000, 0x0000,
213 0x0000, 0x0000,
214 0x0000, 0x0000,
215 0x0000, 0x0000,
216 0x0000, 0x0000,
217 0x0000, 0x0000,
218 0x0000, 0x0000,
219 0x0000, 0x0000,
220 0x0000, 0x0000,
221 0x0000, 0x0000,
222 0x0000, 0x0000,
223 0x0000, 0x0000,
224 0x0000, 0x0000,
225 0x0000, 0x0000,
226 0x0000, 0x0000,
227 0x0000, 0x0000,
228 };
229 #endif
230
231 static const u_int8_t grtwo_defcmap[8 * 3] = {
232 /* Normal colors */
233 0x00, 0x00, 0x00, /* black */
234 0x7f, 0x00, 0x00, /* red */
235 0x00, 0x7f, 0x00, /* green */
236 0x7f, 0x7f, 0x00, /* brown */
237 0x00, 0x00, 0x7f, /* blue */
238 0x7f, 0x00, 0x7f, /* magenta */
239 0x00, 0x7f, 0x7f, /* cyan */
240 0xc7, 0xc7, 0xc7, /* white - XXX too dim? */
241 };
242
243 static void
grtwo_wait_gfifo(struct grtwo_devconfig * dc)244 grtwo_wait_gfifo(struct grtwo_devconfig * dc)
245 {
246 int2_wait_fifo(1);
247 }
248
249 static inline void
grtwo_set_color(bus_space_tag_t iot,bus_space_handle_t ioh,int color)250 grtwo_set_color(bus_space_tag_t iot, bus_space_handle_t ioh, int color)
251 {
252 bus_space_write_4(iot, ioh, GR2_FIFO_COLOR, color);
253 }
254
255 /* Helper functions */
256 static void
grtwo_fill_rectangle(struct grtwo_devconfig * dc,int x1,int y1,int x2,int y2,u_int8_t color)257 grtwo_fill_rectangle(struct grtwo_devconfig * dc, int x1, int y1, int x2,
258 int y2, u_int8_t color)
259 {
260 int remaining;
261 int from_y;
262 int to_y;
263
264 /* gr2 sees coordinate 0,0 as the lower left corner, and 1279,1023
265 as the upper right. To keep things consistent, we shall flip the
266 y axis. */
267
268 /* There appears to be a limit to the number of vertical lines that we
269 can run through the graphics engine at one go. This probably has
270 something to do with vertical refresh. Single-row fills are okay,
271 multiple-row screw up the board in exciting ways. The copy_rectangle
272 workaround doesn't work for fills. */
273
274 /* Coordinates, not length. Remember that! */
275
276 to_y = uimin(dc->yres - 1 - y1, dc->yres - 1 - y2);
277 from_y = uimax(dc->yres - 1 - y1, dc->yres - 1 - y2);
278
279 remaining = to_y - from_y;
280
281 grtwo_wait_gfifo(dc);
282 grtwo_set_color(dc->iot, dc->ioh, color);
283
284 while (remaining) {
285 if (remaining <= 32)
286 {
287 delay(10000);
288 grtwo_wait_gfifo(dc);
289 bus_space_write_4(dc->iot, dc->ioh, GR2_FIFO_RECTI2D, x1);
290 bus_space_write_4(dc->iot, dc->ioh, GR2_FIFO_DATA, from_y);
291 bus_space_write_4(dc->iot, dc->ioh, GR2_FIFO_DATA, x2);
292 bus_space_write_4(dc->iot, dc->ioh, GR2_FIFO_DATA, from_y + remaining);
293 break;
294 } else {
295 delay(100000);
296 grtwo_wait_gfifo(dc);
297 bus_space_write_4(dc->iot, dc->ioh, GR2_FIFO_RECTI2D, x1);
298 bus_space_write_4(dc->iot, dc->ioh, GR2_FIFO_DATA, from_y);
299 bus_space_write_4(dc->iot, dc->ioh, GR2_FIFO_DATA, x2);
300 bus_space_write_4(dc->iot, dc->ioh, GR2_FIFO_DATA, from_y + remaining);
301 from_y += 32;
302 remaining -=32;
303 }
304 }
305 }
306
307 static void
grtwo_copy_rectangle(struct grtwo_devconfig * dc,int x1,int y1,int x2,int y2,int width,int height)308 grtwo_copy_rectangle(struct grtwo_devconfig * dc, int x1, int y1, int x2,
309 int y2, int width, int height)
310 {
311 int length = (width + 3) >> 2;
312 int lines = 4864 / length;
313 int from_y;
314 int to_y;
315 int temp_height;
316
317 if ((y2 <= y1) || (height < lines)) {
318 grtwo_wait_gfifo(dc);
319 bus_space_write_4(dc->iot, dc->ioh, GR2_FIFO_RECTCOPY, length);
320 bus_space_write_4(dc->iot, dc->ioh, GR2_FIFO_DATA, lines);
321 bus_space_write_4(dc->iot, dc->ioh, GR2_FIFO_DATA, x1);
322 bus_space_write_4(dc->iot, dc->ioh, GR2_FIFO_DATA, y1);
323 bus_space_write_4(dc->iot, dc->ioh, GR2_FIFO_DATA, width);
324 bus_space_write_4(dc->iot, dc->ioh, GR2_FIFO_DATA, height);
325 bus_space_write_4(dc->iot, dc->ioh, GR2_FIFO_DATA, x2);
326 bus_space_write_4(dc->iot, dc->ioh, GR2_FIFO_DATA, y2);
327 } else {
328 from_y = y1 + height - lines;
329 to_y = y2 + height - lines;
330 temp_height = MIN(height, lines);
331
332 while (temp_height) {
333 grtwo_wait_gfifo(dc);
334 bus_space_write_4(dc->iot, dc->ioh, GR2_FIFO_RECTCOPY, length);
335 bus_space_write_4(dc->iot, dc->ioh, GR2_FIFO_DATA, lines);
336 bus_space_write_4(dc->iot, dc->ioh, GR2_FIFO_DATA, x1);
337 bus_space_write_4(dc->iot, dc->ioh, GR2_FIFO_DATA, from_y);
338 bus_space_write_4(dc->iot, dc->ioh, GR2_FIFO_DATA, width);
339 bus_space_write_4(dc->iot, dc->ioh, GR2_FIFO_DATA, temp_height);
340 bus_space_write_4(dc->iot, dc->ioh, GR2_FIFO_DATA, x2);
341 bus_space_write_4(dc->iot, dc->ioh, GR2_FIFO_DATA, to_y);
342 height -= temp_height;
343 height = MIN(height, lines);
344 from_y -= temp_height;
345 to_y -= temp_height;
346 }
347 }
348 }
349
350 static void
grtwo_cmap_setrgb(struct grtwo_devconfig * dc,int index,u_int8_t r,u_int8_t g,u_int8_t b)351 grtwo_cmap_setrgb(struct grtwo_devconfig * dc, int index, u_int8_t r, u_int8_t g, u_int8_t b)
352 {
353 grtwo_wait_gfifo(dc);
354 bus_space_write_1(dc->iot, dc->ioh, XMAPALL_ADDRHI,
355 ((index & 0x1f00) >> 8) );
356 bus_space_write_1(dc->iot, dc->ioh, XMAPALL_ADDRLO,
357 (index & 0xff));
358 bus_space_write_1(dc->iot, dc->ioh, XMAPALL_CLUT, r);
359 bus_space_write_1(dc->iot, dc->ioh, XMAPALL_CLUT, g);
360 bus_space_write_1(dc->iot, dc->ioh, XMAPALL_CLUT, b);
361 }
362
363 static void
grtwo_setup_hw(struct grtwo_devconfig * dc)364 grtwo_setup_hw(struct grtwo_devconfig * dc)
365 {
366 int i = 0;
367
368 /* Get various revisions */
369 dc->boardrev = (~(bus_space_read_4(dc->iot, dc->ioh, GR2_REVISION_RD0))) & GR2_REVISION_RD0_VERSION_MASK;
370
371 /*
372 * boards prior to rev 4 have a pretty whacky config scheme.
373 * what is doubly weird is that i have a rev 2 board, but the rev 4
374 * probe routines work just fine.
375 * we'll trust SGI, though, and separate things a bit. it's only
376 * critical for the display depth calculation.
377 */
378
379 if (dc->boardrev < 4) {
380 dc->backendrev = ~(bus_space_read_4(dc->iot, dc->ioh, GR2_REVISION_RD2) & GR2_REVISION_RD2_BACKEND_REV) >> 2;
381 if (dc->backendrev == 0)
382 return;
383 dc->zbuffer = !(bus_space_read_4(dc->iot, dc->ioh, GR2_REVISION_RD1) & GR2_REVISION_RD1_ZBUFFER);
384 if ( (bus_space_read_4(dc->iot, dc->ioh, GR2_REVISION_RD3) & GR2_REVISION_RD3_VMA) != 3)
385 i++;
386 if ( (bus_space_read_4(dc->iot, dc->ioh, GR2_REVISION_RD3) & GR2_REVISION_RD3_VMB) != 0x0c)
387 i++;
388 if ( (bus_space_read_4(dc->iot, dc->ioh, GR2_REVISION_RD3) & GR2_REVISION_RD3_VMC) != 0x30)
389 i++;
390 dc->depth = 8 * i;
391 dc->monitor =
392 ((bus_space_read_4(dc->iot, dc->ioh, GR2_REVISION_RD2) & 0x03) << 1) |
393 (bus_space_read_4(dc->iot, dc->ioh, GR2_REVISION_RD1) & 0x01);
394 } else {
395 dc->backendrev = ~(bus_space_read_4(dc->iot, dc->ioh, GR2_REVISION_RD1)) & 0x03;
396 if (dc->backendrev == 0)
397 return;
398 dc->zbuffer = bus_space_read_4(dc->iot, dc->ioh, GR2_REVISION_RD1) & GR2_REVISION4_RD1_ZBUFFER;
399 dc->depth = ((bus_space_read_4(dc->iot, dc->ioh, GR2_REVISION_RD1) & GR2_REVISION4_RD1_24BPP) >> 4) ? 24 : 8;
400 dc->monitor = (bus_space_read_4(dc->iot, dc->ioh, GR2_REVISION_RD0) & GR2_REVISION4_RD0_MONITOR_MASK) >> 4;
401 }
402
403 dc->hq2rev = (bus_space_read_4(dc->iot, dc->ioh, HQ2_VERSION) & HQ2_VERSION_MASK) >> HQ2_VERSION_SHIFT;
404 dc->ge7rev = (bus_space_read_4(dc->iot, dc->ioh, GE7_REVISION) & GE7_REVISION_MASK) >> 5;
405 /* dc->vc1rev = vc1_read_ireg(dc, 5) & 0x07; */
406
407 /* gr2 supports 1280x1024 only */
408 dc->xres = 1280;
409 dc->yres = 1024;
410
411 #if 0
412 /* Setup cursor glyph */
413
414 bus_space_write_4(dc->iot, dc->ioh, VC1_ADDRHI,
415 (VC1_SRAM_CURSOR0_BASE >> 8) & 0xff);
416 bus_space_write_4(dc->iot, dc->ioh, VC1_ADDRLO,
417 VC1_SRAM_CURSOR0_BASE & 0xff);
418 for (i = 0; i < 128; i++)
419 bus_space_write_4(dc->iot, dc->ioh, VC1_SRAM, grtwo_cursor_data[i]);
420
421 bus_space_write_4(dc->iot, dc->ioh, VC1_ADDRHI,
422 (VC1_CURSOR_EP >> 8) & 0xff);
423 bus_space_write_4(dc->iot, dc->ioh, VC1_ADDRLO,
424 VC1_CURSOR_EP & 0xff);
425 bus_space_write_4(dc->iot, dc->ioh, VC1_COMMAND, VC1_SRAM_CURSOR0_BASE);
426 bus_space_write_4(dc->iot, dc->ioh, VC1_COMMAND, 0);
427 bus_space_write_4(dc->iot, dc->ioh, VC1_COMMAND, 0);
428 bus_space_write_4(dc->iot, dc->ioh, VC1_COMMAND, 0);
429
430 /* Turn on cursor function, display, DID */
431 bus_space_write_4(dc->iot, dc->ioh, VC1_SYSCTL,
432 VC1_SYSCTL_VC1 | VC1_SYSCTL_DID |
433 VC1_SYSCTL_CURSOR | VC1_SYSCTL_CURSOR_DISPLAY);
434 #endif
435
436 /* Setup CMAP */
437 for (i = 0; i < 8; i++)
438 grtwo_cmap_setrgb(dc, i, grtwo_defcmap[i * 3],
439 grtwo_defcmap[i * 3 + 1], grtwo_defcmap[i * 3 + 2]);
440 }
441
442 /* Attach routines */
443 static int
grtwo_match(device_t parent,cfdata_t cf,void * aux)444 grtwo_match(device_t parent, cfdata_t cf, void *aux)
445 {
446 struct gio_attach_args *ga = aux;
447
448 if (ga->ga_addr != 0x1f000000 && ga->ga_addr != 0x1f400000 &&
449 ga->ga_addr != 0x1f600000)
450 return (0);
451
452 /*
453 * grtwo doesn't have anything that even vaguely resembles a product
454 * ID. Instead, we determine presence by looking at the HQ2 "mystery"
455 * register, which contains a magic number.
456 */
457 if ( platform.badaddr((void *)(intptr_t)(ga->ga_ioh + HQ2_MYSTERY),
458 sizeof(u_int32_t)) )
459 return 0;
460
461 if ( (bus_space_read_4(ga->ga_iot, ga->ga_ioh, HQ2_MYSTERY)) != 0xdeadbeef)
462 return 0;
463
464 return 1;
465 }
466
467 static void
grtwo_attach_common(struct grtwo_devconfig * dc,struct gio_attach_args * ga)468 grtwo_attach_common(struct grtwo_devconfig * dc, struct gio_attach_args * ga)
469 {
470 dc->dc_addr = ga->ga_addr;
471
472 dc->iot = ga->ga_iot;
473 dc->ioh = ga->ga_ioh;
474 int i = 0;
475
476 wsfont_init();
477
478 dc->dc_font = wsfont_find(NULL, 8, 16, 0, WSDISPLAY_FONTORDER_L2R,
479 WSDISPLAY_FONTORDER_L2R, WSFONT_FIND_BITMAP);
480
481 if (dc->dc_font < 0)
482 panic("grtwo_attach_common: no suitable fonts");
483
484 if (wsfont_lock(dc->dc_font, &dc->dc_fontdata))
485 panic("grtwo_attach_common: unable to lock font data");
486
487 grtwo_setup_hw(dc);
488
489 /* Large fills are broken. For now, clear the screen line-by-line. */
490 for (i = 0; i < 64; i++)
491 grtwo_eraserows(dc, i, 1, 0);
492
493 /* If large fills worked, we'd do this instead:
494 grtwo_fill_rectangle(dc, 0, 0, dc->xres - 1, dc->yres - 1, 0);
495 */
496 }
497
498 static void
grtwo_attach(device_t parent,device_t self,void * aux)499 grtwo_attach(device_t parent, device_t self, void *aux)
500 {
501 struct gio_attach_args *ga = aux;
502 struct grtwo_softc *sc = device_private(self);
503 struct wsemuldisplaydev_attach_args wa;
504
505 if (grtwo_is_console && ga->ga_addr == grtwo_console_dc.dc_addr) {
506 wa.console = 1;
507 sc->sc_dc = &grtwo_console_dc;
508 } else {
509 wa.console = 0;
510 sc->sc_dc = kmem_zalloc(sizeof(struct grtwo_devconfig),
511 KM_SLEEP);
512
513 grtwo_attach_common(sc->sc_dc, ga);
514 }
515
516 aprint_naive(": Display adapter\n");
517
518 aprint_normal(": GR2 (board rev %x, monitor %d, depth %d)\n",
519 sc->sc_dc->boardrev, sc->sc_dc->monitor, sc->sc_dc->depth);
520
521 wa.scrdata = &grtwo_screenlist;
522 wa.accessops = &grtwo_accessops;
523 wa.accesscookie = sc->sc_dc;
524
525 if ((cpu_intr_establish(0, IPL_TTY, grtwo_intr0, sc)) == NULL)
526 printf(": unable to establish interrupt!\n");
527
528 if ((cpu_intr_establish(6, IPL_TTY, grtwo_intr6, sc)) == NULL)
529 printf(": unable to establish interrupt!\n");
530
531 config_found(self, &wa, wsemuldisplaydevprint, CFARGS_NONE);
532 }
533
534 int
grtwo_cnattach(struct gio_attach_args * ga)535 grtwo_cnattach(struct gio_attach_args * ga)
536 {
537 long defattr = GR2_ATTR_ENCODE(WSCOL_WHITE, WSCOL_BLACK);
538
539 if (!grtwo_match(NULL, NULL, ga)) {
540 return ENXIO;
541 }
542
543 grtwo_attach_common(&grtwo_console_dc, ga);
544 wsdisplay_cnattach(&grtwo_screen, &grtwo_console_dc, 0, 0, defattr);
545
546 grtwo_is_console = 1;
547
548 return 0;
549 }
550
551 /* wsdisplay textops */
552 static void
grtwo_cursor(void * c,int on,int row,int col)553 grtwo_cursor(void *c, int on, int row, int col)
554 {
555 struct grtwo_devconfig *dc = (void *) c;
556 u_int32_t control;
557 control = bus_space_read_4(dc->iot, dc->ioh, VC1_SYSCTL);
558
559 if (!on) {
560 bus_space_write_4(dc->iot, dc->ioh, VC1_SYSCTL,
561 control & ~VC1_SYSCTL_CURSOR_DISPLAY);
562 } else {
563 bus_space_write_4(dc->iot, dc->ioh, VC1_ADDRHI, (VC1_CURSOR_XL & 0xff00) >> 8
564 );
565 bus_space_write_4(dc->iot, dc->ioh, VC1_ADDRLO, VC1_CURSOR_XL & 0xff);
566 bus_space_write_4(dc->iot, dc->ioh, VC1_COMMAND,
567 col * dc->dc_fontdata->fontwidth);
568 bus_space_write_4(dc->iot, dc->ioh, VC1_COMMAND,
569 row * dc->dc_fontdata->fontheight);
570 bus_space_write_4(dc->iot, dc->ioh, VC1_SYSCTL,
571 control | VC1_SYSCTL_CURSOR_DISPLAY);
572 }
573 }
574
575 static int
grtwo_mapchar(void * c,int ch,unsigned int * cp)576 grtwo_mapchar(void *c, int ch, unsigned int *cp)
577 {
578 struct grtwo_devconfig *dc = (void *) c;
579
580 if (dc->dc_fontdata->encoding != WSDISPLAY_FONTENC_ISO) {
581 ch = wsfont_map_unichar(dc->dc_fontdata, ch);
582
583 if (ch < 0)
584 goto fail;
585 }
586 if (ch < dc->dc_fontdata->firstchar ||
587 ch >= dc->dc_fontdata->firstchar + dc->dc_fontdata->numchars)
588 goto fail;
589
590 *cp = ch;
591 return 5;
592
593 fail:
594 *cp = ' ';
595 return 0;
596 }
597
598 static void
grtwo_putchar(void * c,int row,int col,u_int ch,long attr)599 grtwo_putchar(void *c, int row, int col, u_int ch, long attr)
600 {
601 struct grtwo_devconfig *dc = (void *) c;
602 struct wsdisplay_font *font = dc->dc_fontdata;
603 u_int8_t *bitmap = (u_int8_t *) font->data + (ch - font->firstchar + 1) * font->fontheight * font->stride;
604 u_int32_t pattern;
605 int i;
606 int x = col * font->fontwidth;
607 int y = dc->yres - ( (row + 1) * font->fontheight);
608
609 /* Set the drawing color */
610 grtwo_wait_gfifo(dc);
611 grtwo_set_color(dc->iot, dc->ioh, (((attr) >> 8) & 0xff));
612 grtwo_wait_gfifo(dc);
613
614 /* Set drawing coordinates */
615 grtwo_wait_gfifo(dc);
616 bus_space_write_4(dc->iot, dc->ioh, GR2_FIFO_CMOV2I, x);
617 bus_space_write_4(dc->iot, dc->ioh, GR2_FIFO_DATA, y);
618
619 /* This works for font sizes < 18 */
620 grtwo_wait_gfifo(dc);
621 bus_space_write_4(dc->iot, dc->ioh, GR2_FIFO_DRAWCHAR, font->fontwidth);
622 bus_space_write_4(dc->iot, dc->ioh, GR2_FIFO_DATA, font->fontheight);
623 bus_space_write_4(dc->iot, dc->ioh, GR2_FIFO_DATA, 2);
624 bus_space_write_4(dc->iot, dc->ioh, GR2_FIFO_DATA, 0); /* x offset */
625 bus_space_write_4(dc->iot, dc->ioh, GR2_FIFO_DATA, 0); /* y offset */
626 bus_space_write_4(dc->iot, dc->ioh, GR2_FIFO_DATA, 0);
627 bus_space_write_4(dc->iot, dc->ioh, GR2_FIFO_DATA, 0);
628
629 for (i = 0; i < font->fontheight; i++) {
630 /* It appears that writes have to be 16 bits. An "I tell you
631 two times" sort of thing? Thanks, SGI */
632 pattern = *bitmap | (*bitmap << 8);
633 bus_space_write_4(dc->iot, dc->ioh, GR2_FIFO_DATA, pattern);
634 bitmap -= font->stride;
635 }
636
637 /* pad up to 18 */
638 for (i = font->fontheight; i < 18; i++)
639 bus_space_write_4(dc->iot, dc->ioh, GR2_FIFO_DATA, 0x0000);
640 }
641
642 static void
grtwo_copycols(void * c,int row,int srccol,int dstcol,int ncols)643 grtwo_copycols(void *c, int row, int srccol, int dstcol, int ncols)
644 {
645 #if 1
646 printf("grtwo_copycols: %i %i %i %i\n", row, srccol, dstcol, ncols);
647 #else
648 struct grtwo_devconfig *dc = (void *) c;
649 struct wsdisplay_font *font = dc->dc_fontdata;
650 grtwo_copy_rectangle(dc,
651 srccol * font->fontwidth, /* x1 */
652 0, /* y1 */
653 dstcol * font->fontwidth, /* x2 */
654 0, /* y2 */
655 ncols * font->fontwidth, /* dx */
656 dc->yres ); /* dy */
657 #endif
658 }
659
660 static void
grtwo_erasecols(void * c,int row,int startcol,int ncols,long attr)661 grtwo_erasecols(void *c, int row, int startcol, int ncols, long attr)
662 {
663 struct grtwo_devconfig *dc = (void *) c;
664 struct wsdisplay_font *font = dc->dc_fontdata;
665
666 grtwo_fill_rectangle(dc,
667 startcol * font->fontwidth, /* x1 */
668 0, /* y1 */
669 (startcol * font->fontwidth) + ncols * font->fontwidth, /* x2 */
670 dc->yres, /* y2 */
671 GR2_ATTR_BG(attr));
672 }
673
674 static void
grtwo_copyrows(void * c,int srcrow,int dstrow,int nrows)675 grtwo_copyrows(void *c, int srcrow, int dstrow, int nrows)
676 {
677 struct grtwo_devconfig *dc = (void *) c;
678 struct wsdisplay_font *font = dc->dc_fontdata;
679
680 grtwo_copy_rectangle(dc,
681 0, /* x1 */
682 srcrow * font->fontheight, /* y1 */
683 0, /* x2 */
684 dstrow * font->fontheight, /* y2 */
685 dc->xres, /* dx */
686 nrows * font->fontheight);
687 }
688
689 static void
grtwo_eraserows(void * c,int startrow,int nrows,long attr)690 grtwo_eraserows(void *c, int startrow, int nrows, long attr)
691 {
692 struct grtwo_devconfig *dc = (void *) c;
693 struct wsdisplay_font *font = dc->dc_fontdata;
694 grtwo_fill_rectangle(dc,
695 0, /* x1 */
696 startrow * font->fontheight, /* y1 */
697 dc->xres, /* x2 */
698 (startrow * font->fontheight) + nrows * font->fontheight, /* y2 */
699 GR2_ATTR_BG(attr));
700 }
701
702 static int
grtwo_allocattr(void * c,int fg,int bg,int flags,long * attr)703 grtwo_allocattr(void *c, int fg, int bg, int flags, long *attr)
704 {
705 if (flags & WSATTR_BLINK)
706 return EINVAL;
707
708 if ((flags & WSATTR_WSCOLORS) == 0) {
709 fg = WSCOL_WHITE;
710 bg = WSCOL_BLACK;
711 }
712 if (flags & WSATTR_HILIT)
713 fg += 8;
714
715 if (flags & WSATTR_REVERSE) {
716 int tmp = fg;
717 fg = bg;
718 bg = tmp;
719 }
720 *attr = GR2_ATTR_ENCODE(fg, bg);
721
722 return 0;
723 }
724
725 /* wsdisplay accessops */
726
727 static int
grtwo_ioctl(void * c,void * vs,u_long cmd,void * data,int flag,struct lwp * l)728 grtwo_ioctl(void *c, void *vs, u_long cmd, void *data, int flag,
729 struct lwp *l)
730 {
731 struct grtwo_softc *sc = c;
732
733 #define FBINFO (*(struct wsdisplay_fbinfo*)data)
734
735 switch (cmd) {
736 case WSDISPLAYIO_GINFO:
737 FBINFO.width = sc->sc_dc->xres;
738 FBINFO.height = sc->sc_dc->yres;
739 FBINFO.depth = sc->sc_dc->depth;
740 FBINFO.cmsize = 1 << FBINFO.depth;
741 return 0;
742 case WSDISPLAYIO_GTYPE:
743 *(u_int *) data = WSDISPLAY_TYPE_GR2;
744 return 0;
745 }
746 return EPASSTHROUGH;
747 }
748
749 static paddr_t
grtwo_mmap(void * c,void * vs,off_t offset,int prot)750 grtwo_mmap(void *c, void *vs, off_t offset, int prot)
751 {
752 struct grtwo_devconfig *dc = c;
753
754 if (offset >= 0xfffff)
755 return -1;
756
757 return mips_btop(dc->dc_addr + offset);
758 }
759
760 static int
grtwo_alloc_screen(void * c,const struct wsscreen_descr * type,void ** cookiep,int * cursxp,int * cursyp,long * attrp)761 grtwo_alloc_screen(void *c, const struct wsscreen_descr * type, void **cookiep,
762 int *cursxp, int *cursyp, long *attrp)
763 {
764 /*
765 * This won't get called for console screen and we don't support
766 * virtual screens
767 */
768
769 return ENOMEM;
770 }
771
772 static void
grtwo_free_screen(void * c,void * cookie)773 grtwo_free_screen(void *c, void *cookie)
774 {
775 panic("grtwo_free_screen");
776 }
777 static int
grtwo_show_screen(void * c,void * cookie,int waitok,void (* cb)(void *,int,int),void * cbarg)778 grtwo_show_screen(void *c, void *cookie, int waitok,
779 void (*cb) (void *, int, int), void *cbarg)
780 {
781 return 0;
782 }
783
784 static int
grtwo_intr0(void * arg)785 grtwo_intr0(void *arg)
786 {
787 /* struct grtwo_devconfig *dc = arg; */
788 return 1;
789 }
790
791
792 static int
grtwo_intr6(void * arg)793 grtwo_intr6(void *arg)
794 {
795 /* struct grtwo_devconfig *dc = arg; */
796 return 1;
797 }
798
799