1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22/*
23 * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27/*	Copyright (c) 1990, 1991 UNIX System Laboratories, Inc.	*/
28/*	Copyright (c) 1984, 1986, 1987, 1988, 1989, 1990 AT&T	*/
29/*		All Rights Reserved	*/
30
31#include <sys/errno.h>
32#include <sys/types.h>
33#include <sys/conf.h>
34#include <sys/kmem.h>
35#include <sys/visual_io.h>
36#include <sys/font.h>
37#include <sys/fbio.h>
38#include <sys/ddi.h>
39#include <sys/stat.h>
40#include <sys/sunddi.h>
41#include <sys/open.h>
42#include <sys/modctl.h>
43#include <sys/pci.h>
44#include <sys/kd.h>
45#include <sys/ddi_impldefs.h>
46#include <sys/gfx_private.h>
47#include <sys/vgareg.h>
48#include "gfxp_fb.h"
49
50#define	MYNAME	"gfxp_vgatext"
51
52static ddi_device_acc_attr_t dev_attr = {
53	DDI_DEVICE_ATTR_V0,
54	DDI_NEVERSWAP_ACC,
55	DDI_STRICTORDER_ACC,
56};
57
58/* default structure for FBIOGATTR ioctl */
59static struct fbgattr vgatext_attr =  {
60/*	real_type	owner */
61	FBTYPE_SUNFAST_COLOR, 0,
62/* fbtype: type		h  w  depth cms  size */
63	{ FBTYPE_SUNFAST_COLOR, VGA_TEXT_ROWS, VGA_TEXT_COLS, 1,    256,  0 },
64/* fbsattr: flags emu_type	dev_specific */
65	{ 0, FBTYPE_SUN4COLOR, { 0 } },
66/*	emu_types */
67	{ -1 }
68};
69
70static struct vis_identifier gfxp_vgatext_ident = { "illumos_text" };
71
72static int vgatext_devinit(struct gfxp_fb_softc *, struct vis_devinit *data);
73static void	vgatext_cons_copy(struct gfxp_fb_softc *,
74			struct vis_conscopy *);
75static void	vgatext_cons_display(struct gfxp_fb_softc *,
76			struct vis_consdisplay *);
77static int	vgatext_cons_clear(struct gfxp_fb_softc *,
78			struct vis_consclear *);
79static void	vgatext_cons_cursor(struct gfxp_fb_softc *,
80			struct vis_conscursor *);
81static void	vgatext_polled_copy(struct vis_polledio_arg *,
82			struct vis_conscopy *);
83static void	vgatext_polled_display(struct vis_polledio_arg *,
84			struct vis_consdisplay *);
85static void	vgatext_polled_cursor(struct vis_polledio_arg *,
86			struct vis_conscursor *);
87static void	vgatext_init(struct gfxp_fb_softc *);
88static void	vgatext_set_text(struct gfxp_fb_softc *);
89
90static void	vgatext_get_text(struct gfxp_fb_softc *softc);
91static void	vgatext_save_text(struct gfxp_fb_softc *softc);
92static void	vgatext_kdsettext(struct gfxp_fb_softc *softc);
93static int	vgatext_suspend(struct gfxp_fb_softc *softc);
94static void	vgatext_resume(struct gfxp_fb_softc *softc);
95static int	vgatext_devmap(dev_t, devmap_cookie_t, offset_t, size_t,
96    size_t *, uint_t, void *);
97
98#if	defined(USE_BORDERS)
99static void	vgatext_init_graphics(struct gfxp_fb_softc *);
100#endif
101
102static int vgatext_kdsetmode(struct gfxp_fb_softc *softc, int mode);
103static void vgatext_setfont(struct gfxp_fb_softc *softc);
104static void vgatext_get_cursor(struct gfxp_fb_softc *softc,
105    screen_pos_t *row, screen_pos_t *col);
106static void vgatext_set_cursor(struct gfxp_fb_softc *softc, int row, int col);
107static void vgatext_hide_cursor(struct gfxp_fb_softc *softc);
108static void vgatext_save_colormap(struct gfxp_fb_softc *softc);
109static void vgatext_restore_colormap(struct gfxp_fb_softc *softc);
110static int vgatext_get_pci_reg_index(dev_info_t *const devi,
111    unsigned long himask, unsigned long hival, unsigned long addr,
112		off_t *offset);
113static int vgatext_get_isa_reg_index(dev_info_t *const devi,
114		unsigned long hival, unsigned long addr, off_t *offset);
115
116static struct gfxp_ops gfxp_vgatext_ops = {
117	.ident = &gfxp_vgatext_ident,
118	.kdsetmode = vgatext_kdsetmode,
119	.devinit = vgatext_devinit,
120	.cons_copy = vgatext_cons_copy,
121	.cons_display = vgatext_cons_display,
122	.cons_cursor = vgatext_cons_cursor,
123	.cons_clear = vgatext_cons_clear,
124	.suspend = vgatext_suspend,
125	.resume = vgatext_resume,
126	.devmap = vgatext_devmap
127};
128
129#define	STREQ(a, b)	(strcmp((a), (b)) == 0)
130
131int
132gfxp_vga_attach(dev_info_t *devi, struct gfxp_fb_softc *softc)
133{
134	int	unit = ddi_get_instance(devi);
135	int	error;
136	char	*parent_type = NULL;
137	int	reg_rnumber;
138	off_t	reg_offset;
139	off_t	mem_offset;
140	char	*cons;
141	struct gfx_vga *vga;
142
143
144	softc->polledio.display = vgatext_polled_display;
145	softc->polledio.copy = vgatext_polled_copy;
146	softc->polledio.cursor = vgatext_polled_cursor;
147	softc->gfxp_ops = &gfxp_vgatext_ops;
148	softc->fbgattr = &vgatext_attr;
149	vga = kmem_zalloc(sizeof (*vga), KM_SLEEP);
150	softc->console = (union gfx_console *)vga;
151
152	error = ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_get_parent(devi),
153	    DDI_PROP_DONTPASS, "device_type", &parent_type);
154	if (error != DDI_SUCCESS) {
155		cmn_err(CE_WARN, MYNAME ": can't determine parent type.");
156		goto fail;
157	}
158
159	/* Not enable AGP and DRM by default */
160	if (STREQ(parent_type, "isa") || STREQ(parent_type, "eisa")) {
161		reg_rnumber = vgatext_get_isa_reg_index(devi, 1, VGA_REG_ADDR,
162		    &reg_offset);
163		if (reg_rnumber < 0) {
164			cmn_err(CE_WARN,
165			    MYNAME
166			    ": can't find reg entry for registers");
167			error = DDI_FAILURE;
168			goto fail;
169		}
170		vga->fb_regno = vgatext_get_isa_reg_index(devi, 0,
171		    VGA_MEM_ADDR, &mem_offset);
172		if (vga->fb_regno < 0) {
173			cmn_err(CE_WARN,
174			    MYNAME ": can't find reg entry for memory");
175			error = DDI_FAILURE;
176			goto fail;
177		}
178	} else if (STREQ(parent_type, "pci") || STREQ(parent_type, "pciex")) {
179		reg_rnumber = vgatext_get_pci_reg_index(devi,
180		    PCI_REG_ADDR_M|PCI_REG_REL_M,
181		    PCI_ADDR_IO|PCI_RELOCAT_B, VGA_REG_ADDR,
182		    &reg_offset);
183		if (reg_rnumber < 0) {
184			cmn_err(CE_WARN,
185			    MYNAME ": can't find reg entry for registers");
186			error = DDI_FAILURE;
187			goto fail;
188		}
189		vga->fb_regno = vgatext_get_pci_reg_index(devi,
190		    PCI_REG_ADDR_M|PCI_REG_REL_M,
191		    PCI_ADDR_MEM32|PCI_RELOCAT_B, VGA_MEM_ADDR,
192		    &mem_offset);
193		if (vga->fb_regno < 0) {
194			cmn_err(CE_WARN,
195			    MYNAME ": can't find reg entry for memory");
196			error = DDI_FAILURE;
197			goto fail;
198		}
199	} else {
200		cmn_err(CE_WARN, MYNAME ": unknown parent type \"%s\".",
201		    parent_type);
202		error = DDI_FAILURE;
203		goto fail;
204	}
205	ddi_prop_free(parent_type);
206	parent_type = NULL;
207
208	error = ddi_regs_map_setup(devi, reg_rnumber,
209	    (caddr_t *)&vga->regs.addr, reg_offset, VGA_REG_SIZE,
210	    &dev_attr, &vga->regs.handle);
211	if (error != DDI_SUCCESS)
212		goto fail;
213	vga->regs.mapped = B_TRUE;
214
215	vga->fb_size = VGA_MEM_SIZE;
216
217	error = ddi_regs_map_setup(devi, vga->fb_regno,
218	    (caddr_t *)&vga->fb.addr, mem_offset, vga->fb_size, &dev_attr,
219	    &vga->fb.handle);
220	if (error != DDI_SUCCESS)
221		goto fail;
222	vga->fb.mapped = B_TRUE;
223
224	if (ddi_get8(vga->regs.handle,
225	    vga->regs.addr + VGA_MISC_R) & VGA_MISC_IOA_SEL)
226		vga->text_base = (caddr_t)vga->fb.addr + VGA_COLOR_BASE;
227	else
228		vga->text_base = (caddr_t)vga->fb.addr + VGA_MONO_BASE;
229
230	if (ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(),
231	    DDI_PROP_DONTPASS, "console", &cons) == DDI_SUCCESS) {
232		if (strcmp(cons, "graphics") == 0) {
233			softc->happyface_boot = 1;
234			softc->silent = 1;
235			vga->current_base = vga->shadow;
236		} else {
237			vga->current_base = vga->text_base;
238		}
239		ddi_prop_free(cons);
240	} else {
241		vga->current_base = vga->text_base;
242	}
243
244	/* Set cursor info. */
245	vga->cursor.visible = fb_info.cursor.visible;
246	vga->cursor.row = fb_info.cursor.pos.y;
247	vga->cursor.col = fb_info.cursor.pos.x;
248
249	error = ddi_prop_create(makedevice(DDI_MAJOR_T_UNKNOWN, unit),
250	    devi, DDI_PROP_CANSLEEP, DDI_KERNEL_IOCTL, NULL, 0);
251	if (error != DDI_SUCCESS)
252		goto fail;
253
254	/* only do this if not in graphics mode */
255	if ((softc->silent == 0) && (GFXP_IS_CONSOLE(softc))) {
256		vgatext_init(softc);
257		vgatext_save_colormap(softc);
258	}
259
260	return (DDI_SUCCESS);
261
262fail:
263	kmem_free(vga, sizeof (*vga));
264	if (parent_type != NULL)
265		ddi_prop_free(parent_type);
266	return (error);
267}
268
269int
270gfxp_vga_detach(dev_info_t *devi __unused, struct gfxp_fb_softc *softc)
271{
272	if (softc->console->vga.fb.mapped)
273		ddi_regs_map_free(&softc->console->vga.fb.handle);
274	if (softc->console->vga.regs.mapped)
275		ddi_regs_map_free(&softc->console->vga.regs.handle);
276	kmem_free(softc->console, sizeof (struct gfx_vga));
277	return (DDI_SUCCESS);
278}
279
280/*
281 * vgatext_save_text
282 * vgatext_suspend
283 * vgatext_resume
284 *
285 *	Routines to save and restore contents of the VGA text area
286 * Mostly, this is to support Suspend/Resume operation for graphics
287 * device drivers.  Here in the VGAtext common code, we simply squirrel
288 * away the contents of the hardware's text area during Suspend and then
289 * put it back during Resume
290 */
291static void
292vgatext_save_text(struct gfxp_fb_softc *softc)
293{
294	union gfx_console *console = softc->console;
295	unsigned i;
296
297	for (i = 0; i < sizeof (console->vga.shadow); i++)
298		console->vga.shadow[i] = console->vga.current_base[i];
299}
300
301static int
302vgatext_suspend(struct gfxp_fb_softc *softc)
303{
304	switch (softc->mode) {
305	case KD_TEXT:
306		vgatext_save_text(softc);
307		break;
308
309	case KD_GRAPHICS:
310		break;
311
312	default:
313		cmn_err(CE_WARN, MYNAME ": unknown mode in vgatext_suspend.");
314		return (DDI_FAILURE);
315	}
316	return (DDI_SUCCESS);
317}
318
319static void
320vgatext_resume(struct gfxp_fb_softc *softc)
321{
322
323	switch (softc->mode) {
324	case KD_TEXT:
325		vgatext_kdsettext(softc);
326		break;
327
328	case KD_GRAPHICS:
329
330		/*
331		 * Upon RESUME, the graphics device will always actually
332		 * be in TEXT mode even though the Xorg server did not
333		 * make that mode change itself (the suspend code did).
334		 * We want first, therefore, to restore textmode
335		 * operation fully, and then the Xorg server will
336		 * do the rest to restore the device to its
337		 * (hi resolution) graphics mode
338		 */
339		vgatext_kdsettext(softc);
340#if	defined(USE_BORDERS)
341		vgatext_init_graphics(softc);
342#endif
343		break;
344	default:
345		cmn_err(CE_WARN, MYNAME ": unknown mode in vgatext_resume.");
346		break;
347	}
348}
349
350static void
351vgatext_progressbar_stop(struct gfxp_fb_softc *softc)
352{
353	extern void progressbar_stop(void);
354
355	if (softc->silent == 1) {
356		softc->silent = 0;
357		progressbar_stop();
358	}
359}
360
361static void
362vgatext_kdsettext(struct gfxp_fb_softc *softc)
363{
364	union gfx_console *console = softc->console;
365	int i;
366
367	vgatext_init(softc);
368	for (i = 0; i < sizeof (console->vga.shadow); i++) {
369		console->vga.text_base[i] = console->vga.shadow[i];
370	}
371	console->vga.current_base = console->vga.text_base;
372	if (console->vga.cursor.visible) {
373		vgatext_set_cursor(softc,
374		    console->vga.cursor.row,
375		    console->vga.cursor.col);
376	}
377	vgatext_restore_colormap(softc);
378}
379
380static void
381vgatext_kdsetgraphics(struct gfxp_fb_softc *softc)
382{
383	vgatext_progressbar_stop(softc);
384	vgatext_save_text(softc);
385	softc->console->vga.current_base = softc->console->vga.shadow;
386	vgatext_get_text(softc);
387#if	defined(USE_BORDERS)
388	vgatext_init_graphics(softc);
389#endif
390}
391
392static int
393vgatext_kdsetmode(struct gfxp_fb_softc *softc, int mode)
394{
395	switch (mode) {
396	case KD_TEXT:
397		if (softc->blt_ops.setmode != NULL)
398			if (softc->blt_ops.setmode(KD_TEXT) != 0)
399				return (EIO);
400
401		vgatext_kdsettext(softc);
402		break;
403
404	case KD_GRAPHICS:
405		vgatext_kdsetgraphics(softc);
406		if (softc->blt_ops.setmode != NULL)
407			if (softc->blt_ops.setmode(KD_GRAPHICS) != 0) {
408				vgatext_kdsettext(softc);
409				return (EIO);
410			}
411		break;
412
413	case KD_RESETTEXT:
414		/*
415		 * In order to avoid racing with a starting X server,
416		 * this needs to be a test and set that is performed in
417		 * a single (softc->lock protected) ioctl into this driver.
418		 */
419		if (softc->mode == KD_TEXT && softc->silent == 1) {
420			vgatext_progressbar_stop(softc);
421			vgatext_kdsettext(softc);
422		}
423		mode = KD_TEXT;
424		break;
425
426	default:
427		return (EINVAL);
428	}
429
430	softc->mode = mode;
431	return (0);
432}
433
434/*ARGSUSED*/
435static int
436vgatext_devmap(dev_t dev, devmap_cookie_t dhp, offset_t off, size_t len,
437    size_t *maplen, uint_t model, void *ptr)
438{
439	struct gfxp_fb_softc *softc = (struct gfxp_fb_softc *)ptr;
440	union gfx_console *console;
441	int err;
442	size_t length;
443
444
445	if (softc == NULL) {
446		cmn_err(CE_WARN, "vgatext: Can't find softstate");
447		return (-1);
448	}
449	console = softc->console;
450
451	if (!(off >= VGA_MEM_ADDR &&
452	    off < VGA_MEM_ADDR + console->vga.fb_size)) {
453		cmn_err(CE_WARN, "vgatext: Can't map offset 0x%llx", off);
454		return (-1);
455	}
456
457	if (off + len > VGA_MEM_ADDR + console->vga.fb_size)
458		length = VGA_MEM_ADDR + console->vga.fb_size - off;
459	else
460		length = len;
461
462	if ((err = devmap_devmem_setup(dhp, softc->devi,
463	    NULL, console->vga.fb_regno, off - VGA_MEM_ADDR,
464	    length, PROT_ALL, 0, &dev_attr)) < 0) {
465		return (err);
466	}
467
468
469	*maplen = length;
470	return (0);
471}
472
473
474static int
475vgatext_devinit(struct gfxp_fb_softc *softc, struct vis_devinit *data)
476{
477	/* initialize console instance */
478	data->version = VIS_CONS_REV;
479	data->width = VGA_TEXT_COLS;
480	data->height = VGA_TEXT_ROWS;
481	data->linebytes = VGA_TEXT_COLS;
482	data->color_map = NULL;
483	data->depth = 4;
484	data->mode = VIS_TEXT;
485	data->polledio = &softc->polledio;
486
487	vgatext_save_text(softc);	/* save current console */
488	vgatext_hide_cursor(softc);
489	return (0);
490}
491
492/*
493 * Binary searchable table for Unicode to CP437 conversion.
494 */
495struct unicp437 {
496	uint16_t	unicode_base;
497	uint8_t		cp437_base;
498	uint8_t		length;
499};
500
501static const struct unicp437 cp437table[] = {
502	{ 0x0020, 0x20, 0x5e }, { 0x00a0, 0x20, 0x00 }, { 0x00a1, 0xad, 0x00 },
503	{ 0x00a2, 0x9b, 0x00 }, { 0x00a3, 0x9c, 0x00 }, { 0x00a5, 0x9d, 0x00 },
504	{ 0x00a7, 0x15, 0x00 }, { 0x00aa, 0xa6, 0x00 }, { 0x00ab, 0xae, 0x00 },
505	{ 0x00ac, 0xaa, 0x00 }, { 0x00b0, 0xf8, 0x00 }, { 0x00b1, 0xf1, 0x00 },
506	{ 0x00b2, 0xfd, 0x00 }, { 0x00b5, 0xe6, 0x00 }, { 0x00b6, 0x14, 0x00 },
507	{ 0x00b7, 0xfa, 0x00 }, { 0x00ba, 0xa7, 0x00 }, { 0x00bb, 0xaf, 0x00 },
508	{ 0x00bc, 0xac, 0x00 }, { 0x00bd, 0xab, 0x00 }, { 0x00bf, 0xa8, 0x00 },
509	{ 0x00c4, 0x8e, 0x01 }, { 0x00c6, 0x92, 0x00 }, { 0x00c7, 0x80, 0x00 },
510	{ 0x00c9, 0x90, 0x00 }, { 0x00d1, 0xa5, 0x00 }, { 0x00d6, 0x99, 0x00 },
511	{ 0x00dc, 0x9a, 0x00 }, { 0x00df, 0xe1, 0x00 }, { 0x00e0, 0x85, 0x00 },
512	{ 0x00e1, 0xa0, 0x00 }, { 0x00e2, 0x83, 0x00 }, { 0x00e4, 0x84, 0x00 },
513	{ 0x00e5, 0x86, 0x00 }, { 0x00e6, 0x91, 0x00 }, { 0x00e7, 0x87, 0x00 },
514	{ 0x00e8, 0x8a, 0x00 }, { 0x00e9, 0x82, 0x00 }, { 0x00ea, 0x88, 0x01 },
515	{ 0x00ec, 0x8d, 0x00 }, { 0x00ed, 0xa1, 0x00 }, { 0x00ee, 0x8c, 0x00 },
516	{ 0x00ef, 0x8b, 0x00 }, { 0x00f0, 0xeb, 0x00 }, { 0x00f1, 0xa4, 0x00 },
517	{ 0x00f2, 0x95, 0x00 }, { 0x00f3, 0xa2, 0x00 }, { 0x00f4, 0x93, 0x00 },
518	{ 0x00f6, 0x94, 0x00 }, { 0x00f7, 0xf6, 0x00 }, { 0x00f8, 0xed, 0x00 },
519	{ 0x00f9, 0x97, 0x00 }, { 0x00fa, 0xa3, 0x00 }, { 0x00fb, 0x96, 0x00 },
520	{ 0x00fc, 0x81, 0x00 }, { 0x00ff, 0x98, 0x00 }, { 0x0192, 0x9f, 0x00 },
521	{ 0x0393, 0xe2, 0x00 }, { 0x0398, 0xe9, 0x00 }, { 0x03a3, 0xe4, 0x00 },
522	{ 0x03a6, 0xe8, 0x00 }, { 0x03a9, 0xea, 0x00 }, { 0x03b1, 0xe0, 0x01 },
523	{ 0x03b4, 0xeb, 0x00 }, { 0x03b5, 0xee, 0x00 }, { 0x03bc, 0xe6, 0x00 },
524	{ 0x03c0, 0xe3, 0x00 }, { 0x03c3, 0xe5, 0x00 }, { 0x03c4, 0xe7, 0x00 },
525	{ 0x03c6, 0xed, 0x00 }, { 0x03d5, 0xed, 0x00 }, { 0x2010, 0x2d, 0x00 },
526	{ 0x2014, 0x2d, 0x00 }, { 0x2018, 0x60, 0x00 }, { 0x2019, 0x27, 0x00 },
527	{ 0x201c, 0x22, 0x00 }, { 0x201d, 0x22, 0x00 }, { 0x2022, 0x07, 0x00 },
528	{ 0x203c, 0x13, 0x00 }, { 0x207f, 0xfc, 0x00 }, { 0x20a7, 0x9e, 0x00 },
529	{ 0x20ac, 0xee, 0x00 }, { 0x2126, 0xea, 0x00 }, { 0x2190, 0x1b, 0x00 },
530	{ 0x2191, 0x18, 0x00 }, { 0x2192, 0x1a, 0x00 }, { 0x2193, 0x19, 0x00 },
531	{ 0x2194, 0x1d, 0x00 }, { 0x2195, 0x12, 0x00 }, { 0x21a8, 0x17, 0x00 },
532	{ 0x2202, 0xeb, 0x00 }, { 0x2208, 0xee, 0x00 }, { 0x2211, 0xe4, 0x00 },
533	{ 0x2212, 0x2d, 0x00 }, { 0x2219, 0xf9, 0x00 }, { 0x221a, 0xfb, 0x00 },
534	{ 0x221e, 0xec, 0x00 }, { 0x221f, 0x1c, 0x00 }, { 0x2229, 0xef, 0x00 },
535	{ 0x2248, 0xf7, 0x00 }, { 0x2261, 0xf0, 0x00 }, { 0x2264, 0xf3, 0x00 },
536	{ 0x2265, 0xf2, 0x00 }, { 0x2302, 0x7f, 0x00 }, { 0x2310, 0xa9, 0x00 },
537	{ 0x2320, 0xf4, 0x00 }, { 0x2321, 0xf5, 0x00 }, { 0x2500, 0xc4, 0x00 },
538	{ 0x2502, 0xb3, 0x00 }, { 0x250c, 0xda, 0x00 }, { 0x2510, 0xbf, 0x00 },
539	{ 0x2514, 0xc0, 0x00 }, { 0x2518, 0xd9, 0x00 }, { 0x251c, 0xc3, 0x00 },
540	{ 0x2524, 0xb4, 0x00 }, { 0x252c, 0xc2, 0x00 }, { 0x2534, 0xc1, 0x00 },
541	{ 0x253c, 0xc5, 0x00 }, { 0x2550, 0xcd, 0x00 }, { 0x2551, 0xba, 0x00 },
542	{ 0x2552, 0xd5, 0x00 }, { 0x2553, 0xd6, 0x00 }, { 0x2554, 0xc9, 0x00 },
543	{ 0x2555, 0xb8, 0x00 }, { 0x2556, 0xb7, 0x00 }, { 0x2557, 0xbb, 0x00 },
544	{ 0x2558, 0xd4, 0x00 }, { 0x2559, 0xd3, 0x00 }, { 0x255a, 0xc8, 0x00 },
545	{ 0x255b, 0xbe, 0x00 }, { 0x255c, 0xbd, 0x00 }, { 0x255d, 0xbc, 0x00 },
546	{ 0x255e, 0xc6, 0x01 }, { 0x2560, 0xcc, 0x00 }, { 0x2561, 0xb5, 0x00 },
547	{ 0x2562, 0xb6, 0x00 }, { 0x2563, 0xb9, 0x00 }, { 0x2564, 0xd1, 0x01 },
548	{ 0x2566, 0xcb, 0x00 }, { 0x2567, 0xcf, 0x00 }, { 0x2568, 0xd0, 0x00 },
549	{ 0x2569, 0xca, 0x00 }, { 0x256a, 0xd8, 0x00 }, { 0x256b, 0xd7, 0x00 },
550	{ 0x256c, 0xce, 0x00 }, { 0x2580, 0xdf, 0x00 }, { 0x2584, 0xdc, 0x00 },
551	{ 0x2588, 0xdb, 0x00 }, { 0x258c, 0xdd, 0x00 }, { 0x2590, 0xde, 0x00 },
552	{ 0x2591, 0xb0, 0x02 }, { 0x25a0, 0xfe, 0x00 }, { 0x25ac, 0x16, 0x00 },
553	{ 0x25b2, 0x1e, 0x00 }, { 0x25ba, 0x10, 0x00 }, { 0x25bc, 0x1f, 0x00 },
554	{ 0x25c4, 0x11, 0x00 }, { 0x25cb, 0x09, 0x00 }, { 0x25d8, 0x08, 0x00 },
555	{ 0x25d9, 0x0a, 0x00 }, { 0x263a, 0x01, 0x01 }, { 0x263c, 0x0f, 0x00 },
556	{ 0x2640, 0x0c, 0x00 }, { 0x2642, 0x0b, 0x00 }, { 0x2660, 0x06, 0x00 },
557	{ 0x2663, 0x05, 0x00 }, { 0x2665, 0x03, 0x01 }, { 0x266a, 0x0d, 0x00 },
558	{ 0x266c, 0x0e, 0x00 }
559};
560
561static uint8_t
562vga_get_cp437(uint32_t c)
563{
564	int min, mid, max;
565
566	min = 0;
567	max = (sizeof (cp437table) / sizeof (struct unicp437)) - 1;
568
569	if (c < cp437table[0].unicode_base ||
570	    c > cp437table[max].unicode_base + cp437table[max].length)
571		return ('?');
572
573	while (max >= min) {
574		mid = (min + max) / 2;
575		if (c < cp437table[mid].unicode_base)
576			max = mid - 1;
577		else if (c > cp437table[mid].unicode_base +
578		    cp437table[mid].length)
579			min = mid + 1;
580		else
581			return (c - cp437table[mid].unicode_base +
582			    cp437table[mid].cp437_base);
583	}
584
585	return ('?');
586}
587
588/*
589 * display a string on the screen at (row, col)
590 *	 assume it has been cropped to fit.
591 */
592static void
593vgatext_cons_display(struct gfxp_fb_softc *softc, struct vis_consdisplay *da)
594{
595	uint32_t *string;
596	int	i;
597	unsigned char	attr;
598	struct cgatext {
599		unsigned char ch;
600		unsigned char attr;
601	};
602	struct cgatext *addr;
603
604	/*
605	 * Sanity checks.  This is a last-ditch effort to avoid damage
606	 * from brokenness or maliciousness above.
607	 */
608	if (da->row < 0 || da->row >= VGA_TEXT_ROWS ||
609	    da->col < 0 || da->col >= VGA_TEXT_COLS ||
610	    da->col + da->width > VGA_TEXT_COLS)
611		return;
612
613	/*
614	 * To be fully general, we should copyin the data.  This is not
615	 * really relevant for this text-only driver, but a graphical driver
616	 * should support these ioctls from userland to enable simple
617	 * system startup graphics.
618	 */
619	attr = (solaris_color_to_pc_color[da->bg_color & 0xf] << 4)
620	    | solaris_color_to_pc_color[da->fg_color & 0xf];
621	string = (uint32_t *)da->data;
622	addr = (struct cgatext *)softc->console->vga.current_base
623	    +  (da->row * VGA_TEXT_COLS + da->col);
624	for (i = 0; i < da->width; i++) {
625		addr[i].ch = vga_get_cp437(string[i]);
626		addr[i].attr = attr;
627	}
628}
629
630static void
631vgatext_polled_display(
632	struct vis_polledio_arg *arg,
633	struct vis_consdisplay *da)
634{
635	vgatext_cons_display((struct gfxp_fb_softc *)arg, da);
636}
637
638/*
639 * screen-to-screen copy
640 */
641
642static void
643vgatext_cons_copy(struct gfxp_fb_softc *softc, struct vis_conscopy *ma)
644{
645	unsigned short	*from;
646	unsigned short	*to;
647	int		cnt;
648	screen_size_t chars_per_row;
649	unsigned short	*to_row_start;
650	unsigned short	*from_row_start;
651	screen_size_t	rows_to_move;
652	unsigned short	*base;
653
654	/*
655	 * Sanity checks.  Note that this is a last-ditch effort to avoid
656	 * damage caused by broken-ness or maliciousness above.
657	 */
658	if (ma->s_col < 0 || ma->s_col >= VGA_TEXT_COLS ||
659	    ma->s_row < 0 || ma->s_row >= VGA_TEXT_ROWS ||
660	    ma->e_col < 0 || ma->e_col >= VGA_TEXT_COLS ||
661	    ma->e_row < 0 || ma->e_row >= VGA_TEXT_ROWS ||
662	    ma->t_col < 0 || ma->t_col >= VGA_TEXT_COLS ||
663	    ma->t_row < 0 || ma->t_row >= VGA_TEXT_ROWS ||
664	    ma->s_col > ma->e_col ||
665	    ma->s_row > ma->e_row)
666		return;
667
668	/*
669	 * Remember we're going to copy shorts because each
670	 * character/attribute pair is 16 bits.
671	 */
672	chars_per_row = ma->e_col - ma->s_col + 1;
673	rows_to_move = ma->e_row - ma->s_row + 1;
674
675	/* More sanity checks. */
676	if (ma->t_row + rows_to_move > VGA_TEXT_ROWS ||
677	    ma->t_col + chars_per_row > VGA_TEXT_COLS)
678		return;
679
680	base = (unsigned short *)softc->console->vga.current_base;
681
682	to_row_start = base + ((ma->t_row * VGA_TEXT_COLS) + ma->t_col);
683	from_row_start = base + ((ma->s_row * VGA_TEXT_COLS) + ma->s_col);
684
685	if (to_row_start < from_row_start) {
686		while (rows_to_move-- > 0) {
687			to = to_row_start;
688			from = from_row_start;
689			to_row_start += VGA_TEXT_COLS;
690			from_row_start += VGA_TEXT_COLS;
691			for (cnt = chars_per_row; cnt-- > 0; )
692				*to++ = *from++;
693		}
694	} else {
695		/*
696		 * Offset to the end of the region and copy backwards.
697		 */
698		cnt = rows_to_move * VGA_TEXT_COLS + chars_per_row;
699		to_row_start += cnt;
700		from_row_start += cnt;
701
702		while (rows_to_move-- > 0) {
703			to_row_start -= VGA_TEXT_COLS;
704			from_row_start -= VGA_TEXT_COLS;
705			to = to_row_start;
706			from = from_row_start;
707			for (cnt = chars_per_row; cnt-- > 0; )
708				*--to = *--from;
709		}
710	}
711}
712
713static void
714vgatext_polled_copy(
715	struct vis_polledio_arg *arg,
716	struct vis_conscopy *ca)
717{
718	vgatext_cons_copy((struct gfxp_fb_softc *)arg, ca);
719}
720
721/*ARGSUSED*/
722static int
723vgatext_cons_clear(struct gfxp_fb_softc *softc, struct vis_consclear *ca)
724{
725	uint16_t val, fg, *base;
726	int i;
727
728	if (ca->bg_color == 0)		/* bright white */
729		fg = 1;			/* black */
730	else
731		fg = 8;
732
733	val = (solaris_color_to_pc_color[ca->bg_color & 0xf] << 4) |
734	    solaris_color_to_pc_color[fg];
735	val = (val << 8) | ' ';
736
737	base = (uint16_t *)softc->console->vga.current_base;
738	for (i = 0; i < VGA_TEXT_ROWS * VGA_TEXT_COLS; i++)
739		base[i] = val;
740
741	return (0);
742}
743
744static void
745vgatext_cons_cursor(struct gfxp_fb_softc *softc, struct vis_conscursor *ca)
746{
747	if (softc->silent)
748		return;
749
750	switch (ca->action) {
751	case VIS_HIDE_CURSOR:
752		softc->console->vga.cursor.visible = B_FALSE;
753		if (softc->console->vga.current_base ==
754		    softc->console->vga.text_base)
755			vgatext_hide_cursor(softc);
756		break;
757	case VIS_DISPLAY_CURSOR:
758		/*
759		 * Sanity check.  This is a last-ditch effort to avoid
760		 * damage from brokenness or maliciousness above.
761		 */
762		if (ca->col < 0 || ca->col >= VGA_TEXT_COLS ||
763		    ca->row < 0 || ca->row >= VGA_TEXT_ROWS)
764			return;
765
766		softc->console->vga.cursor.visible = B_TRUE;
767		softc->console->vga.cursor.col = ca->col;
768		softc->console->vga.cursor.row = ca->row;
769		if (softc->console->vga.current_base ==
770		    softc->console->vga.text_base)
771			vgatext_set_cursor(softc, ca->row, ca->col);
772		break;
773	case VIS_GET_CURSOR:
774		if (softc->console->vga.current_base ==
775		    softc->console->vga.text_base) {
776			vgatext_get_cursor(softc, &ca->row, &ca->col);
777		}
778		break;
779	}
780}
781
782static void
783vgatext_polled_cursor(
784	struct vis_polledio_arg *arg,
785	struct vis_conscursor *ca)
786{
787	vgatext_cons_cursor((struct gfxp_fb_softc *)arg, ca);
788}
789
790static void
791vgatext_hide_cursor(struct gfxp_fb_softc *softc)
792{
793	union gfx_console *console = softc->console;
794	uint8_t msl, s;
795
796	if (softc->silent)
797		return;
798
799	msl = vga_get_crtc(&console->vga.regs, VGA_CRTC_MAX_S_LN) & 0x1f;
800	s = vga_get_crtc(&console->vga.regs, VGA_CRTC_CSSL) & 0xc0;
801	s |= (1 << 5);
802
803	/* disable cursor */
804	vga_set_crtc(&console->vga.regs, VGA_CRTC_CSSL, s);
805	vga_set_crtc(&console->vga.regs, VGA_CRTC_CESL, msl);
806}
807
808static void
809vgatext_set_cursor(struct gfxp_fb_softc *softc, int row, int col)
810{
811	union gfx_console *console = softc->console;
812	short	addr;
813	uint8_t msl, s;
814
815	if (softc->silent)
816		return;
817
818	msl = vga_get_crtc(&console->vga.regs, VGA_CRTC_MAX_S_LN) & 0x1f;
819	s = vga_get_crtc(&console->vga.regs, VGA_CRTC_CSSL) & 0xc0;
820
821	addr = row * VGA_TEXT_COLS + col;
822
823	vga_set_crtc(&console->vga.regs, VGA_CRTC_CLAH, addr >> 8);
824	vga_set_crtc(&console->vga.regs, VGA_CRTC_CLAL, addr & 0xff);
825
826	/* enable cursor */
827	vga_set_crtc(&console->vga.regs, VGA_CRTC_CSSL, s);
828	vga_set_crtc(&console->vga.regs, VGA_CRTC_CESL, msl);
829}
830
831static void
832vgatext_get_cursor(struct gfxp_fb_softc *softc,
833    screen_pos_t *row, screen_pos_t *col)
834{
835	union gfx_console *console = softc->console;
836	short   addr;
837
838	addr = (vga_get_crtc(&console->vga.regs, VGA_CRTC_CLAH) << 8) +
839	    vga_get_crtc(&console->vga.regs, VGA_CRTC_CLAL);
840
841	*row = addr / VGA_TEXT_COLS;
842	*col = addr % VGA_TEXT_COLS;
843}
844
845static void
846vgatext_get_text(struct gfxp_fb_softc *softc)
847{
848	union gfx_console *console = softc->console;
849	struct vgareg *vga_reg;
850	struct vgaregmap *regs;
851	int i;
852
853	regs = &console->vga.regs;
854	vga_reg = &console->vga.vga_reg;
855
856	vga_reg->vga_misc = vga_get_reg(regs, VGA_MISC_R);
857
858	/* get crt controller registers */
859	for (i = 0; i < NUM_CRTC_REG; i++) {
860		vga_reg->vga_crtc[i] = vga_get_crtc(regs, i);
861	}
862
863	/* get attribute registers */
864	for (i = 0; i < NUM_ATR_REG; i++) {
865		vga_reg->vga_atr[i] = vga_get_atr(regs, i);
866	}
867
868	/* get graphics controller registers */
869	for (i = 0; i < NUM_GRC_REG; i++) {
870		vga_reg->vga_grc[i] = vga_get_grc(regs, i);
871	}
872
873	/* get sequencer registers */
874	for (i = 1; i < NUM_SEQ_REG; i++) {
875		vga_reg->vga_seq[i] = vga_get_seq(regs, i);
876	}
877}
878
879/*
880 * This code is experimental. It's only enabled if console is
881 * set to graphics, a preliminary implementation of happyface boot.
882 */
883static void
884vgatext_set_text(struct gfxp_fb_softc *softc)
885{
886	union gfx_console *console = softc->console;
887	struct vgareg *vga_reg;
888	struct vgaregmap *regs;
889	int i;
890
891	regs = &console->vga.regs;
892	vga_reg = &console->vga.vga_reg;
893
894	vgatext_get_text(softc);
895
896	/*
897	 * Set output register bits for text mode.
898	 * Make sure the VGA adapter is not in monochrome emulation mode.
899	 */
900	vga_set_reg(regs, VGA_MISC_W, VGA_MISC_HSP | VGA_MISC_PGSL |
901	    VGA_MISC_VCLK1 | VGA_MISC_ENB_RAM | VGA_MISC_IOA_SEL);
902
903	/* set sequencer registers */
904	vga_set_seq(regs, VGA_SEQ_RST_SYN,
905	    (vga_get_seq(regs, VGA_SEQ_RST_SYN) &
906	    ~VGA_SEQ_RST_SYN_NO_SYNC_RESET));
907	for (i = 1; i < NUM_SEQ_REG; i++) {
908		vga_set_seq(regs, i, VGA_SEQ_TEXT[i]);
909	}
910	vga_set_seq(regs, VGA_SEQ_RST_SYN,
911	    (vga_get_seq(regs, VGA_SEQ_RST_SYN) |
912	    VGA_SEQ_RST_SYN_NO_ASYNC_RESET |
913	    VGA_SEQ_RST_SYN_NO_SYNC_RESET));
914
915	/* set crt controller registers */
916	vga_set_crtc(regs, VGA_CRTC_VRE,
917	    (vga_reg->vga_crtc[VGA_CRTC_VRE] & ~VGA_CRTC_VRE_LOCK));
918	for (i = 0; i < NUM_CRTC_REG; i++) {
919		vga_set_crtc(regs, i, VGA_CRTC_TEXT[i]);
920	}
921
922	/* set graphics controller registers */
923	for (i = 0; i < NUM_GRC_REG; i++) {
924		vga_set_grc(regs, i, VGA_GRC_TEXT[i]);
925	}
926
927	/* set attribute registers */
928	for (i = 0; i < NUM_ATR_REG; i++) {
929		vga_set_atr(regs, i, VGA_ATR_TEXT[i]);
930	}
931
932	/* set palette */
933	for (i = 0; i < VGA_TEXT_CMAP_ENTRIES; i++) {
934		vga_put_cmap(regs, i,
935		    VGA_TEXT_PALETTES[i][0] << 2,
936		    VGA_TEXT_PALETTES[i][1] << 2,
937		    VGA_TEXT_PALETTES[i][2] << 2);
938	}
939	for (i = VGA_TEXT_CMAP_ENTRIES; i < VGA8_CMAP_ENTRIES; i++) {
940		vga_put_cmap(regs, i, 0, 0, 0);
941	}
942}
943
944static void
945vgatext_init(struct gfxp_fb_softc *softc)
946{
947	union gfx_console *console = softc->console;
948	bitmap_data_t *font_data;
949	unsigned char atr_mode;
950	short width, height;
951	int i;
952
953	atr_mode = vga_get_atr(&console->vga.regs, VGA_ATR_MODE);
954	if (atr_mode & VGA_ATR_MODE_GRAPH)
955		vgatext_set_text(softc);
956	atr_mode = vga_get_atr(&console->vga.regs, VGA_ATR_MODE);
957	atr_mode &= ~VGA_ATR_MODE_BLINK;
958	atr_mode &= ~VGA_ATR_MODE_9WIDE;
959	vga_set_atr(&console->vga.regs, VGA_ATR_MODE, atr_mode);
960#if	defined(USE_BORDERS)
961	vga_set_atr(&console->vga.regs, VGA_ATR_BDR_CLR,
962	    vga_get_atr(&console->vga.regs, pc_brt_white));
963#else
964	vga_set_atr(&console->vga.regs, VGA_ATR_BDR_CLR,
965	    vga_get_atr(&console->vga.regs, pc_black));
966#endif
967
968	width = VGA_TEXT_COLS;
969	height = VGA_TEXT_ROWS;
970	font_data = set_font(&height, &width,
971	    16 * height + BORDER_PIXELS,
972	    8 * width + BORDER_PIXELS);
973	for (i = 0; i < VFNT_MAPS; i++) {
974		console->vga.font.vf_map[i] = font_data->font->vf_map[i];
975		console->vga.font.vf_map_count[i] =
976		    font_data->font->vf_map_count[i];
977	}
978	console->vga.font.vf_bytes = font_data->font->vf_bytes;
979	console->vga.font.vf_width = font_data->font->vf_width;
980	console->vga.font.vf_height = font_data->font->vf_height;
981	vgatext_setfont(softc);
982}
983
984#if	defined(USE_BORDERS)
985static void
986vgatext_init_graphics(struct gfxp_fb_softc *softc)
987{
988	vga_set_atr(&softc->console->vga.regs, VGA_ATR_BDR_CLR,
989	    vga_get_atr(&softc->console->vga.regs, pc_black));
990}
991#endif
992
993/*
994 * Binary searchable table for CP437 to Unicode conversion.
995 */
996struct cp437uni {
997	uint8_t		cp437_base;
998	uint16_t	unicode_base;
999	uint8_t		length;
1000};
1001
1002static const struct cp437uni cp437unitable[] = {
1003	{   0, 0x0000, 0 }, {   1, 0x263A, 1 }, {   3, 0x2665, 1 },
1004	{   5, 0x2663, 0 }, {   6, 0x2660, 0 }, {   7, 0x2022, 0 },
1005	{   8, 0x25D8, 0 }, {   9, 0x25CB, 0 }, {  10, 0x25D9, 0 },
1006	{  11, 0x2642, 0 }, {  12, 0x2640, 0 }, {  13, 0x266A, 1 },
1007	{  15, 0x263C, 0 }, {  16, 0x25BA, 0 }, {  17, 0x25C4, 0 },
1008	{  18, 0x2195, 0 }, {  19, 0x203C, 0 }, {  20, 0x00B6, 0 },
1009	{  21, 0x00A7, 0 }, {  22, 0x25AC, 0 }, {  23, 0x21A8, 0 },
1010	{  24, 0x2191, 0 }, {  25, 0x2193, 0 }, {  26, 0x2192, 0 },
1011	{  27, 0x2190, 0 }, {  28, 0x221F, 0 }, {  29, 0x2194, 0 },
1012	{  30, 0x25B2, 0 }, {  31, 0x25BC, 0 }, {  32, 0x0020, 0x5e },
1013	{ 127, 0x2302, 0 }, { 128, 0x00C7, 0 }, { 129, 0x00FC, 0 },
1014	{ 130, 0x00E9, 0 }, { 131, 0x00E2, 0 }, { 132, 0x00E4, 0 },
1015	{ 133, 0x00E0, 0 }, { 134, 0x00E5, 0 }, { 135, 0x00E7, 0 },
1016	{ 136, 0x00EA, 1 }, { 138, 0x00E8, 0 }, { 139, 0x00EF, 0 },
1017	{ 140, 0x00EE, 0 }, { 141, 0x00EC, 0 }, { 142, 0x00C4, 1 },
1018	{ 144, 0x00C9, 0 }, { 145, 0x00E6, 0 }, { 146, 0x00C6, 0 },
1019	{ 147, 0x00F4, 0 }, { 148, 0x00F6, 0 }, { 149, 0x00F2, 0 },
1020	{ 150, 0x00FB, 0 }, { 151, 0x00F9, 0 }, { 152, 0x00FF, 0 },
1021	{ 153, 0x00D6, 0 }, { 154, 0x00DC, 0 }, { 155, 0x00A2, 1 },
1022	{ 157, 0x00A5, 0 }, { 158, 0x20A7, 0 }, { 159, 0x0192, 0 },
1023	{ 160, 0x00E1, 0 }, { 161, 0x00ED, 0 }, { 162, 0x00F3, 0 },
1024	{ 163, 0x00FA, 0 }, { 164, 0x00F1, 0 }, { 165, 0x00D1, 0 },
1025	{ 166, 0x00AA, 0 }, { 167, 0x00BA, 0 }, { 168, 0x00BF, 0 },
1026	{ 169, 0x2310, 0 }, { 170, 0x00AC, 0 }, { 171, 0x00BD, 0 },
1027	{ 172, 0x00BC, 0 }, { 173, 0x00A1, 0 }, { 174, 0x00AB, 0 },
1028	{ 175, 0x00BB, 0 }, { 176, 0x2591, 2 }, { 179, 0x2502, 0 },
1029	{ 180, 0x2524, 0 }, { 181, 0x2561, 1 }, { 183, 0x2556, 0 },
1030	{ 184, 0x2555, 0 }, { 185, 0x2563, 0 }, { 186, 0x2551, 0 },
1031	{ 187, 0x2557, 0 }, { 188, 0x255D, 0 }, { 189, 0x255C, 0 },
1032	{ 190, 0x255B, 0 }, { 191, 0x2510, 0 }, { 192, 0x2514, 0 },
1033	{ 193, 0x2534, 0 }, { 194, 0x252C, 0 }, { 195, 0x251C, 0 },
1034	{ 196, 0x2500, 0 }, { 197, 0x253C, 0 }, { 198, 0x255E, 1 },
1035	{ 200, 0x255A, 0 }, { 201, 0x2554, 0 }, { 202, 0x2569, 0 },
1036	{ 203, 0x2566, 0 }, { 204, 0x2560, 0 }, { 205, 0x2550, 0 },
1037	{ 206, 0x256C, 0 }, { 207, 0x2567, 1 }, { 209, 0x2564, 1 },
1038	{ 211, 0x2559, 0 }, { 212, 0x2558, 0 }, { 213, 0x2552, 1 },
1039	{ 215, 0x256B, 0 }, { 216, 0x256A, 0 }, { 217, 0x2518, 0 },
1040	{ 218, 0x250C, 0 }, { 219, 0x2588, 0 }, { 220, 0x2584, 0 },
1041	{ 221, 0x258C, 0 }, { 222, 0x2590, 0 }, { 223, 0x2580, 0 },
1042	{ 224, 0x03B1, 0 }, { 225, 0x00DF, 0 }, { 226, 0x0393, 0 },
1043	{ 227, 0x03C0, 0 }, { 228, 0x03A3, 0 }, { 229, 0x03C3, 0 },
1044	{ 230, 0x00B5, 0 }, { 231, 0x03C4, 0 }, { 232, 0x03A6, 0 },
1045	{ 233, 0x0398, 0 }, { 234, 0x03A9, 0 }, { 235, 0x03B4, 0 },
1046	{ 236, 0x221E, 0 }, { 237, 0x03C6, 0 }, { 238, 0x03B5, 0 },
1047	{ 239, 0x2229, 0 }, { 240, 0x2261, 0 }, { 241, 0x00B1, 0 },
1048	{ 242, 0x2265, 0 }, { 243, 0x2264, 0 }, { 244, 0x2320, 1 },
1049	{ 246, 0x00F7, 0 }, { 247, 0x2248, 0 }, { 248, 0x00B0, 0 },
1050	{ 249, 0x2219, 0 }, { 250, 0x00B7, 0 }, { 251, 0x221A, 0 },
1051	{ 252, 0x207F, 0 }, { 253, 0x00B2, 0 }, { 254, 0x25A0, 0 },
1052	{ 255, 0x00A0, 0 }
1053};
1054
1055static uint16_t
1056vga_cp437_to_uni(uint8_t c)
1057{
1058	int min, mid, max;
1059
1060	min = 0;
1061	max = (sizeof (cp437unitable) / sizeof (struct cp437uni)) - 1;
1062
1063	while (max >= min) {
1064		mid = (min + max) / 2;
1065		if (c < cp437unitable[mid].cp437_base)
1066			max = mid - 1;
1067		else if (c > cp437unitable[mid].cp437_base +
1068		    cp437unitable[mid].length)
1069			min = mid + 1;
1070		else
1071			return (c - cp437unitable[mid].cp437_base +
1072			    cp437unitable[mid].unicode_base);
1073	}
1074
1075	return ('?');
1076}
1077
1078static void
1079vgatext_setfont(struct gfxp_fb_softc *softc)
1080{
1081	union gfx_console *console = softc->console;
1082	static uchar_t fsreg[8] = {0x0, 0x30, 0x5, 0x35, 0xa, 0x3a, 0xf, 0x3f};
1083
1084	const uchar_t *from;
1085	uchar_t volatile *to;
1086	uint16_t c;
1087	int	i, j, s;
1088	int	bpc, f_offset;
1089
1090	/* Sync-reset the sequencer registers */
1091	vga_set_seq(&console->vga.regs, 0x00, 0x01);
1092	/*
1093	 *  enable write to plane2, since fonts
1094	 * could only be loaded into plane2
1095	 */
1096	vga_set_seq(&console->vga.regs, 0x02, 0x04);
1097	/*
1098	 *  sequentially access data in the bit map being
1099	 * selected by MapMask register (index 0x02)
1100	 */
1101	vga_set_seq(&console->vga.regs, 0x04, 0x07);
1102	/* Sync-reset ended, and allow the sequencer to operate */
1103	vga_set_seq(&console->vga.regs, 0x00, 0x03);
1104
1105	/*
1106	 *  select plane 2 on Read Mode 0
1107	 */
1108	vga_set_grc(&console->vga.regs, 0x04, 0x02);
1109	/*
1110	 *  system addresses sequentially access data, follow
1111	 * Memory Mode register bit 2 in the sequencer
1112	 */
1113	vga_set_grc(&console->vga.regs, 0x05, 0x00);
1114	/*
1115	 * set range of host memory addresses decoded by VGA
1116	 * hardware -- A0000h-BFFFFh (128K region)
1117	 */
1118	vga_set_grc(&console->vga.regs, 0x06, 0x00);
1119
1120	/*
1121	 * This assumes 8x16 characters, which yield the traditional 80x25
1122	 * screen.  It really should support other character heights.
1123	 */
1124	bpc = 16;
1125	s = console->vga.vga_fontslot;
1126	f_offset = s * 8 * 1024;
1127	for (i = 0; i < 256; i++) {
1128		c = vga_cp437_to_uni(i);
1129		from = font_lookup(&console->vga.font, c);
1130		to = (unsigned char *)console->vga.fb.addr + f_offset +
1131		    i * 0x20;
1132		for (j = 0; j < bpc; j++)
1133			*to++ = *from++;
1134	}
1135
1136	/* Sync-reset the sequencer registers */
1137	vga_set_seq(&console->vga.regs, 0x00, 0x01);
1138	/* enable write to plane 0 and 1 */
1139	vga_set_seq(&console->vga.regs, 0x02, 0x03);
1140	/*
1141	 * enable character map selection
1142	 * and odd/even addressing
1143	 */
1144	vga_set_seq(&console->vga.regs, 0x04, 0x03);
1145	/*
1146	 * select font map
1147	 */
1148	vga_set_seq(&console->vga.regs, 0x03, fsreg[s]);
1149	/* Sync-reset ended, and allow the sequencer to operate */
1150	vga_set_seq(&console->vga.regs, 0x00, 0x03);
1151
1152	/* restore graphic registers */
1153
1154	/* select plane 0 */
1155	vga_set_grc(&console->vga.regs, 0x04, 0x00);
1156	/* enable odd/even addressing mode */
1157	vga_set_grc(&console->vga.regs, 0x05, 0x10);
1158	/*
1159	 * range of host memory addresses decoded by VGA
1160	 * hardware -- B8000h-BFFFFh (32K region)
1161	 */
1162	vga_set_grc(&console->vga.regs, 0x06, 0x0e);
1163	/* enable all color plane */
1164	vga_set_atr(&console->vga.regs, 0x12, 0x0f);
1165
1166}
1167
1168static void
1169vgatext_save_colormap(struct gfxp_fb_softc *softc)
1170{
1171	union gfx_console *console = softc->console;
1172	int i;
1173
1174	for (i = 0; i < VGA_ATR_NUM_PLT; i++) {
1175		console->vga.attrib_palette[i] =
1176		    vga_get_atr(&console->vga.regs, i);
1177	}
1178	for (i = 0; i < VGA8_CMAP_ENTRIES; i++) {
1179		vga_get_cmap(&console->vga.regs, i,
1180		    &console->vga.colormap[i].red,
1181		    &console->vga.colormap[i].green,
1182		    &console->vga.colormap[i].blue);
1183	}
1184}
1185
1186static void
1187vgatext_restore_colormap(struct gfxp_fb_softc *softc)
1188{
1189	union gfx_console *console = softc->console;
1190	int i;
1191
1192	for (i = 0; i < VGA_ATR_NUM_PLT; i++) {
1193		vga_set_atr(&console->vga.regs, i,
1194		    console->vga.attrib_palette[i]);
1195	}
1196	for (i = 0; i < VGA8_CMAP_ENTRIES; i++) {
1197		vga_put_cmap(&console->vga.regs, i,
1198		    console->vga.colormap[i].red,
1199		    console->vga.colormap[i].green,
1200		    console->vga.colormap[i].blue);
1201	}
1202}
1203
1204/*
1205 * search the entries of the "reg" property for one which has the desired
1206 * combination of phys_hi bits and contains the desired address.
1207 *
1208 * This version searches a PCI-style "reg" property.  It was prompted by
1209 * issues surrounding the presence or absence of an entry for the ROM:
1210 * (a) a transition problem with PowerPC Virtual Open Firmware
1211 * (b) uncertainty as to whether an entry will be included on a device
1212 *     with ROM support (and so an "active" ROM base address register),
1213 *     but no ROM actually installed.
1214 *
1215 * See the note below on vgatext_get_isa_reg_index for the reasons for
1216 * returning the offset.
1217 *
1218 * Note that this routine may not be fully general; it is intended for the
1219 * specific purpose of finding a couple of particular VGA reg entries and
1220 * may not be suitable for all reg-searching purposes.
1221 */
1222static int
1223vgatext_get_pci_reg_index(
1224	dev_info_t *const devi,
1225	unsigned long himask,
1226	unsigned long hival,
1227	unsigned long addr,
1228	off_t *offset)
1229{
1230
1231	int			length, index;
1232	pci_regspec_t	*reg;
1233
1234	if (ddi_getlongprop(DDI_DEV_T_ANY, devi, DDI_PROP_DONTPASS,
1235	    "reg", (caddr_t)&reg, &length) != DDI_PROP_SUCCESS) {
1236		return (-1);
1237	}
1238
1239	for (index = 0; index < length / sizeof (pci_regspec_t); index++) {
1240		if ((reg[index].pci_phys_hi & himask) != hival)
1241			continue;
1242		if (reg[index].pci_size_hi != 0)
1243			continue;
1244		if (reg[index].pci_phys_mid != 0)
1245			continue;
1246		if (reg[index].pci_phys_low > addr)
1247			continue;
1248		if (reg[index].pci_phys_low + reg[index].pci_size_low <= addr)
1249			continue;
1250
1251		*offset = addr - reg[index].pci_phys_low;
1252		kmem_free(reg, (size_t)length);
1253		return (index);
1254	}
1255	kmem_free(reg, (size_t)length);
1256
1257	return (-1);
1258}
1259
1260/*
1261 * search the entries of the "reg" property for one which has the desired
1262 * combination of phys_hi bits and contains the desired address.
1263 *
1264 * This version searches a ISA-style "reg" property.  It was prompted by
1265 * issues surrounding 8514/A support.  By IEEE 1275 compatibility conventions,
1266 * 8514/A registers should have been added after all standard VGA registers.
1267 * Unfortunately, the Solaris/Intel device configuration framework
1268 * (a) lists the 8514/A registers before the video memory, and then
1269 * (b) also sorts the entries so that I/O entries come before memory
1270 *     entries.
1271 *
1272 * It returns the "reg" index and offset into that register set.
1273 * The offset is needed because there exist (broken?) BIOSes that
1274 * report larger ranges enclosing the standard ranges.  One reports
1275 * 0x3bf for 0x21 instead of 0x3c0 for 0x20, for instance.  Using the
1276 * offset adjusts for this difference in the base of the register set.
1277 *
1278 * Note that this routine may not be fully general; it is intended for the
1279 * specific purpose of finding a couple of particular VGA reg entries and
1280 * may not be suitable for all reg-searching purposes.
1281 */
1282static int
1283vgatext_get_isa_reg_index(
1284	dev_info_t *const devi,
1285	unsigned long hival,
1286	unsigned long addr,
1287	off_t *offset)
1288{
1289
1290	int		length, index;
1291	struct regspec	*reg;
1292
1293	if (ddi_getlongprop(DDI_DEV_T_ANY, devi, DDI_PROP_DONTPASS,
1294	    "reg", (caddr_t)&reg, &length) != DDI_PROP_SUCCESS) {
1295		return (-1);
1296	}
1297
1298	for (index = 0; index < length / sizeof (struct regspec); index++) {
1299		if (reg[index].regspec_bustype != hival)
1300			continue;
1301		if (reg[index].regspec_addr > addr)
1302			continue;
1303		if (reg[index].regspec_addr + reg[index].regspec_size <= addr)
1304			continue;
1305
1306		*offset = addr - reg[index].regspec_addr;
1307		kmem_free(reg, (size_t)length);
1308		return (index);
1309	}
1310	kmem_free(reg, (size_t)length);
1311
1312	return (-1);
1313}
1314
1315/*
1316 * This vgatext function is used to return the fb, and reg pointers
1317 * and handles for peer graphics drivers.
1318 */
1319
1320void
1321vgatext_return_pointers(struct gfxp_fb_softc *softc, struct vgaregmap *fbs,
1322    struct vgaregmap *regss)
1323{
1324
1325	fbs->addr	= softc->console->vga.fb.addr;
1326	fbs->handle	= softc->console->vga.fb.handle;
1327	fbs->mapped	= softc->console->vga.fb.mapped;
1328	regss->addr	= softc->console->vga.regs.addr;
1329	regss->handle	= softc->console->vga.regs.handle;
1330	regss->mapped	= softc->console->vga.regs.mapped;
1331}
1332