xref: /titanic_44/usr/src/uts/intel/io/vgatext/vgatext.c (revision 587032cf0967234b39ccb50adca936a367841063)
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 /*	Copyright (c) 1990, 1991 UNIX System Laboratories, Inc.	*/
23 /*	Copyright (c) 1984, 1986, 1987, 1988, 1989, 1990 AT&T	*/
24 /*	  All Rights Reserved  	*/
25 
26 /*
27  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
28  * Use is subject to license terms.
29  */
30 
31 #pragma ident	"%Z%%M%	%I%	%E% SMI"
32 
33 #include <sys/errno.h>
34 #include <sys/types.h>
35 #include <sys/conf.h>
36 #include <sys/kmem.h>
37 #include <sys/visual_io.h>
38 #include <sys/font.h>
39 #include <sys/fbio.h>
40 
41 #include <sys/ddi.h>
42 #include <sys/stat.h>
43 #include <sys/sunddi.h>
44 #include <sys/file.h>
45 #include <sys/open.h>
46 #include <sys/modctl.h>
47 #include <sys/vgareg.h>
48 #include <sys/vgasubr.h>
49 #include <sys/pci.h>
50 #include <sys/kd.h>
51 #include <sys/ddi_impldefs.h>
52 #include <sys/sunldi.h>
53 #include <sys/agpgart.h>
54 #include <sys/agp/agpdefs.h>
55 #include <sys/agp/agpmaster_io.h>
56 
57 #define	MYNAME	"vgatext"
58 
59 /*
60  * agp support macros
61  */
62 #define	I8XX_MMIO_REGSET	2
63 #define	I8XX_FB_REGSET		1
64 #define	I8XX_PTE_OFFSET		0x10000
65 #define	I8XX_PGTBL_CTL		0x2020
66 #define	I915_GTTADDR_BAR	4
67 #define	I915_FB_REGSET		3
68 
69 #define	IS_IGD(agp_master) ((agp_master->agpm_dev_type == DEVICE_IS_I810) || \
70 		    (agp_master->agpm_dev_type == DEVICE_IS_I830))
71 
72 #define	DEV2INST(dev)		(getminor(dev) >> 1)
73 #define	INST2NODE1(inst)	((inst) << 1)
74 #define	INST2NODE2(inst)	(((inst) << 1) + 1)
75 
76 /* I don't know exactly where these should be defined, but this is a	*/
77 /* heck of a lot better than constants in the code.			*/
78 #define	TEXT_ROWS		25
79 #define	TEXT_COLS		80
80 
81 #define	VGA_BRIGHT_WHITE	0x0f
82 #define	VGA_BLACK		0x00
83 
84 #define	VGA_REG_ADDR		0x3c0
85 #define	VGA_REG_SIZE		0x20
86 
87 #define	VGA_MEM_ADDR		0xa0000
88 #define	VGA_MEM_SIZE		0x20000
89 
90 #define	VGA_MMAP_FB_BASE	VGA_MEM_ADDR
91 
92 static int vgatext_open(dev_t *, int, int, cred_t *);
93 static int vgatext_close(dev_t, int, int, cred_t *);
94 static int vgatext_ioctl(dev_t, int, intptr_t, int, cred_t *, int *);
95 static int vgatext_devmap(dev_t, devmap_cookie_t, offset_t, size_t,
96 			    size_t *, uint_t);
97 
98 static 	struct cb_ops cb_vgatext_ops = {
99 	vgatext_open,		/* cb_open */
100 	vgatext_close,		/* cb_close */
101 	nodev,			/* cb_strategy */
102 	nodev,			/* cb_print */
103 	nodev,			/* cb_dump */
104 	nodev,			/* cb_read */
105 	nodev,			/* cb_write */
106 	vgatext_ioctl,		/* cb_ioctl */
107 	vgatext_devmap,		/* cb_devmap */
108 	nodev,			/* cb_mmap */
109 	ddi_devmap_segmap,	/* cb_segmap */
110 	nochpoll,		/* cb_chpoll */
111 	ddi_prop_op,		/* cb_prop_op */
112 	0,			/* cb_stream */
113 	D_NEW | D_MTSAFE	/* cb_flag */
114 };
115 
116 
117 static int vgatext_info(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg,
118 		void **result);
119 static int vgatext_attach(dev_info_t *, ddi_attach_cmd_t);
120 static int vgatext_detach(dev_info_t *, ddi_detach_cmd_t);
121 
122 static struct vis_identifier text_ident = { "SUNWtext" };
123 
124 static struct dev_ops vgatext_ops = {
125 	DEVO_REV,		/* devo_rev */
126 	0,			/* devo_refcnt */
127 	vgatext_info,		/* devo_getinfo */
128 	nulldev,		/* devo_identify */
129 	nulldev,		/* devo_probe */
130 	vgatext_attach,		/* devo_attach */
131 	vgatext_detach,		/* devo_detach */
132 	nodev,			/* devo_reset */
133 	&cb_vgatext_ops,	/* devo_cb_ops */
134 	(struct bus_ops *)NULL,	/* devo_bus_ops */
135 	NULL			/* power */
136 };
137 
138 
139 /*
140  * agp support data structures
141  */
142 typedef struct gtt_impl {
143 	ddi_acc_handle_t	gtt_mmio_handle; /* mmaped graph registers */
144 	caddr_t			gtt_mmio_base; /* pointer to register base */
145 	caddr_t			gtt_addr; /* pointer to gtt */
146 	igd_info_t		gtt_info; /* for I8XX_GET_INFO ioctl */
147 } gtt_impl_t;
148 
149 typedef struct agp_master_softc {
150 	uint32_t		agpm_id; /* agp master device id */
151 	ddi_acc_handle_t	agpm_acc_hdl; /* agp master pci conf handle */
152 	int			agpm_dev_type; /* which agp device type */
153 	union {
154 		off_t		agpm_acaptr; /* AGP capability reg pointer */
155 		gtt_impl_t	agpm_gtt; /* for gtt table */
156 	} agpm_data;
157 } agp_master_softc_t;
158 
159 
160 
161 struct vgatext_softc {
162 	struct vgaregmap 	regs;
163 	struct vgaregmap 	fb;
164 	off_t			fb_size;
165 	int			fb_regno;
166 	dev_info_t		*devi;
167 	int			mode;	/* KD_TEXT or KD_GRAPHICS */
168 	caddr_t			text_base;	/* hardware text base */
169 	char			shadow[TEXT_ROWS*TEXT_COLS*2];
170 	caddr_t			current_base;	/* hardware or shadow */
171 	struct {
172 		boolean_t visible;
173 		int row;
174 		int col;
175 	}			cursor;
176 	struct vis_polledio	polledio;
177 	struct {
178 		unsigned char red;
179 		unsigned char green;
180 		unsigned char blue;
181 	}			colormap[VGA8_CMAP_ENTRIES];
182 	unsigned char attrib_palette[VGA_ATR_NUM_PLT];
183 	agp_master_softc_t	*agp_master; /* NULL mean not PCI, for AGP */
184 };
185 
186 static int vgatext_devinit(struct vgatext_softc *, struct vis_devinit *data);
187 static void	vgatext_cons_copy(struct vgatext_softc *,
188 			struct vis_conscopy *);
189 static void	vgatext_cons_display(struct vgatext_softc *,
190 			struct vis_consdisplay *);
191 static void	vgatext_cons_cursor(struct vgatext_softc *,
192 			struct vis_conscursor *);
193 static void	vgatext_polled_copy(struct vis_polledio_arg *,
194 			struct vis_conscopy *);
195 static void	vgatext_polled_display(struct vis_polledio_arg *,
196 			struct vis_consdisplay *);
197 static void	vgatext_polled_cursor(struct vis_polledio_arg *,
198 			struct vis_conscursor *);
199 static void	vgatext_init(struct vgatext_softc *);
200 static void	vgatext_set_text(struct vgatext_softc *);
201 #if	defined(USE_BORDERS)
202 static void	vgatext_init_graphics(struct vgatext_softc *);
203 #endif
204 static int vgatext_kdsetmode(struct vgatext_softc *softc, int mode);
205 static void vgatext_setfont(struct vgatext_softc *softc);
206 static void vgatext_get_cursor(struct vgatext_softc *softc,
207 		screen_pos_t *row, screen_pos_t *col);
208 static void vgatext_set_cursor(struct vgatext_softc *softc, int row, int col);
209 static void vgatext_hide_cursor(struct vgatext_softc *softc);
210 static void vgatext_save_colormap(struct vgatext_softc *softc);
211 static void vgatext_restore_colormap(struct vgatext_softc *softc);
212 static int vgatext_get_pci_reg_index(dev_info_t *const devi,
213 		unsigned long himask, unsigned long hival, unsigned long addr,
214 		off_t *offset);
215 static int vgatext_get_isa_reg_index(dev_info_t *const devi,
216 		unsigned long hival, unsigned long addr, off_t *offset);
217 /*
218  * agp support functions prototype
219  */
220 static off_t agp_master_cap_find(ddi_acc_handle_t);
221 static int detect_i8xx_device(agp_master_softc_t *);
222 static int detect_agp_devcice(agp_master_softc_t *);
223 static int agp_master_init(struct vgatext_softc *);
224 static void agp_master_end(agp_master_softc_t *);
225 static int phys2entry(uint32_t, uint32_t, uint32_t *);
226 static int i8xx_add_to_gtt(gtt_impl_t *, igd_gtt_seg_t);
227 static void i8xx_remove_from_gtt(gtt_impl_t *, igd_gtt_seg_t);
228 
229 static void	*vgatext_softc_head;
230 static char	vgatext_silent;
231 static char	happyface_boot;
232 
233 /* Loadable Driver stuff */
234 
235 static struct modldrv modldrv = {
236 	&mod_driverops,		/* Type of module.  This one is a driver */
237 	"VGA text driver v%I%",	/* Name of the module. */
238 	&vgatext_ops,		/* driver ops */
239 };
240 
241 static struct modlinkage modlinkage = {
242 	MODREV_1, (void *) &modldrv, NULL
243 };
244 
245 typedef enum pc_colors {
246 	pc_black	= 0,
247 	pc_blue		= 1,
248 	pc_green	= 2,
249 	pc_cyan		= 3,
250 	pc_red		= 4,
251 	pc_magenta	= 5,
252 	pc_brown	= 6,
253 	pc_white	= 7,
254 	pc_grey		= 8,
255 	pc_brt_blue	= 9,
256 	pc_brt_green	= 10,
257 	pc_brt_cyan	= 11,
258 	pc_brt_red	= 12,
259 	pc_brt_magenta	= 13,
260 	pc_yellow	= 14,
261 	pc_brt_white	= 15
262 } pc_colors_t;
263 
264 static const unsigned char solaris_color_to_pc_color[16] = {
265 	pc_brt_white,		/*  0 - brt_white	*/
266 	pc_black,		/*  1 - black		*/
267 	pc_blue,		/*  2 - blue		*/
268 	pc_green,		/*  3 - green		*/
269 	pc_cyan,		/*  4 - cyan		*/
270 	pc_red,			/*  5 - red		*/
271 	pc_magenta,		/*  6 - magenta		*/
272 	pc_brown,		/*  7 - brown		*/
273 	pc_white,		/*  8 - white		*/
274 	pc_grey,		/*  9 - gery		*/
275 	pc_brt_blue,		/* 10 - brt_blue	*/
276 	pc_brt_green,		/* 11 - brt_green	*/
277 	pc_brt_cyan,		/* 12 - brt_cyan	*/
278 	pc_brt_red,		/* 13 - brt_red		*/
279 	pc_brt_magenta,		/* 14 - brt_magenta	*/
280 	pc_yellow		/* 15 - yellow		*/
281 };
282 
283 static ddi_device_acc_attr_t i8xx_dev_access = {
284 	DDI_DEVICE_ATTR_V0,
285 	DDI_NEVERSWAP_ACC,
286 	DDI_STRICTORDER_ACC
287 };
288 
289 static ddi_device_acc_attr_t dev_attr = {
290 	DDI_DEVICE_ATTR_V0,
291 	DDI_NEVERSWAP_ACC,
292 	DDI_STRICTORDER_ACC,
293 };
294 
295 int
296 _init(void)
297 {
298 	int e;
299 
300 	if ((e = ddi_soft_state_init(&vgatext_softc_head,
301 		    sizeof (struct vgatext_softc), 1)) != 0) {
302 	    return (e);
303 	}
304 
305 	e = mod_install(&modlinkage);
306 
307 	if (e) {
308 	    ddi_soft_state_fini(&vgatext_softc_head);
309 	}
310 	return (e);
311 }
312 
313 int
314 _fini(void)
315 {
316 	int e;
317 
318 	if ((e = mod_remove(&modlinkage)) != 0)
319 	    return (e);
320 
321 	ddi_soft_state_fini(&vgatext_softc_head);
322 
323 	return (0);
324 }
325 
326 int
327 _info(struct modinfo *modinfop)
328 {
329 	return (mod_info(&modlinkage, modinfop));
330 }
331 
332 /* default structure for FBIOGATTR ioctl */
333 static struct fbgattr vgatext_attr =  {
334 /*	real_type	owner */
335 	FBTYPE_SUNFAST_COLOR, 0,
336 /* fbtype: type		h  w  depth cms  size */
337 	{ FBTYPE_SUNFAST_COLOR, TEXT_ROWS, TEXT_COLS, 1,    256,  0 },
338 /* fbsattr: flags emu_type	dev_specific */
339 	{ 0, FBTYPE_SUN4COLOR, { 0 } },
340 /*	emu_types */
341 	{ -1 }
342 };
343 
344 /*
345  * handy macros
346  */
347 
348 #define	getsoftc(instance) ((struct vgatext_softc *)	\
349 			ddi_get_soft_state(vgatext_softc_head, (instance)))
350 
351 static int
352 vgatext_attach(dev_info_t *devi, ddi_attach_cmd_t cmd)
353 {
354 	struct vgatext_softc *softc;
355 	int	unit = ddi_get_instance(devi);
356 	int	error;
357 	char	*parent_type = NULL;
358 	int	reg_rnumber;
359 	off_t	reg_offset;
360 	off_t	mem_offset;
361 	char	buf[80], *cons;
362 
363 
364 	switch (cmd) {
365 	case DDI_ATTACH:
366 	    break;
367 
368 	case DDI_RESUME:
369 	    return (DDI_SUCCESS);
370 	default:
371 	    return (DDI_FAILURE);
372 	}
373 
374 	/* DDI_ATTACH */
375 
376 	/* Allocate softc struct */
377 	if (ddi_soft_state_zalloc(vgatext_softc_head, unit) != DDI_SUCCESS) {
378 		return (DDI_FAILURE);
379 	}
380 	softc = getsoftc(unit);
381 
382 	/* link it in */
383 	softc->devi = devi;
384 	ddi_set_driver_private(devi, softc);
385 
386 	softc->polledio.arg = (struct vis_polledio_arg *)softc;
387 	softc->polledio.display = vgatext_polled_display;
388 	softc->polledio.copy = vgatext_polled_copy;
389 	softc->polledio.cursor = vgatext_polled_cursor;
390 
391 	error = ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_get_parent(devi),
392 		DDI_PROP_DONTPASS, "device_type", &parent_type);
393 	if (error != DDI_SUCCESS) {
394 		cmn_err(CE_WARN, MYNAME ": can't determine parent type.");
395 		goto fail;
396 	}
397 
398 #define	STREQ(a, b)	(strcmp((a), (b)) == 0)
399 	if (STREQ(parent_type, "isa") || STREQ(parent_type, "eisa")) {
400 		reg_rnumber = vgatext_get_isa_reg_index(devi, 1, VGA_REG_ADDR,
401 			&reg_offset);
402 		if (reg_rnumber < 0) {
403 			cmn_err(CE_WARN,
404 				MYNAME ": can't find reg entry for registers");
405 			goto fail;
406 		}
407 		softc->fb_regno = vgatext_get_isa_reg_index(devi, 0,
408 			VGA_MEM_ADDR, &mem_offset);
409 		if (softc->fb_regno < 0) {
410 			cmn_err(CE_WARN,
411 				MYNAME ": can't find reg entry for memory");
412 			goto fail;
413 		}
414 	} else if (STREQ(parent_type, "pci") || STREQ(parent_type, "pciex")) {
415 		reg_rnumber = vgatext_get_pci_reg_index(devi,
416 			PCI_REG_ADDR_M|PCI_REG_REL_M,
417 			PCI_ADDR_IO|PCI_RELOCAT_B, VGA_REG_ADDR,
418 			&reg_offset);
419 		if (reg_rnumber < 0) {
420 			cmn_err(CE_WARN,
421 				MYNAME ": can't find reg entry for registers");
422 			goto fail;
423 		}
424 		softc->fb_regno = vgatext_get_pci_reg_index(devi,
425 			PCI_REG_ADDR_M|PCI_REG_REL_M,
426 			PCI_ADDR_MEM32|PCI_RELOCAT_B, VGA_MEM_ADDR,
427 			&mem_offset);
428 		if (softc->fb_regno < 0) {
429 			cmn_err(CE_WARN,
430 				MYNAME ": can't find reg entry for memory");
431 			goto fail;
432 		}
433 		softc->agp_master = (agp_master_softc_t *)
434 		    kmem_zalloc(sizeof (agp_master_softc_t), KM_SLEEP);
435 	} else {
436 		cmn_err(CE_WARN, MYNAME ": unknown parent type \"%s\".",
437 			parent_type);
438 		goto fail;
439 	}
440 	ddi_prop_free(parent_type);
441 	parent_type = NULL;
442 
443 	error = ddi_regs_map_setup(devi, reg_rnumber,
444 		(caddr_t *)&softc->regs.addr, reg_offset, VGA_REG_SIZE,
445 		&dev_attr, &softc->regs.handle);
446 	if (error != DDI_SUCCESS)
447 		goto fail;
448 	softc->regs.mapped = B_TRUE;
449 
450 	softc->fb_size = VGA_MEM_SIZE;
451 
452 	error = ddi_regs_map_setup(devi, softc->fb_regno,
453 		(caddr_t *)&softc->fb.addr,
454 		mem_offset, softc->fb_size,
455 		&dev_attr, &softc->fb.handle);
456 	if (error != DDI_SUCCESS)
457 		goto fail;
458 	softc->fb.mapped = B_TRUE;
459 
460 	if (ddi_get8(softc->regs.handle,
461 	    softc->regs.addr + VGA_MISC_R) & VGA_MISC_IOA_SEL)
462 		softc->text_base = (caddr_t)softc->fb.addr + VGA_COLOR_BASE;
463 	else
464 		softc->text_base = (caddr_t)softc->fb.addr + VGA_MONO_BASE;
465 	softc->current_base = softc->text_base;
466 
467 	(void) sprintf(buf, "text-%d", unit);
468 	error = ddi_create_minor_node(devi, buf, S_IFCHR,
469 	    INST2NODE1(unit), DDI_NT_DISPLAY, NULL);
470 	if (error != DDI_SUCCESS)
471 		goto fail;
472 
473 	error = ddi_prop_create(makedevice(DDI_MAJOR_T_UNKNOWN, unit),
474 	    devi, DDI_PROP_CANSLEEP, DDI_KERNEL_IOCTL, NULL, 0);
475 	if (error != DDI_SUCCESS)
476 		goto fail;
477 
478 	if (ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(),
479 		DDI_PROP_DONTPASS, "console", &cons) == DDI_SUCCESS) {
480 		if (strcmp(cons, "graphics") == 0) {
481 			happyface_boot = 1;
482 			vgatext_silent = 1;
483 		}
484 		ddi_prop_free(cons);
485 	}
486 
487 	/* only do this if not in graphics mode */
488 	if (vgatext_silent == 0) {
489 		vgatext_init(softc);
490 		vgatext_save_colormap(softc);
491 	}
492 
493 	if (softc->agp_master != NULL) { /* is PCI */
494 		if (agp_master_init(softc) != 0) { /* unsuccessful */
495 			kmem_free(softc->agp_master,
496 			    sizeof (agp_master_softc_t));
497 			softc->agp_master = NULL;
498 
499 		}
500 	}
501 
502 	return (DDI_SUCCESS);
503 
504 fail:
505 	if (parent_type != NULL)
506 		ddi_prop_free(parent_type);
507 	(void) vgatext_detach(devi, DDI_DETACH);
508 	return (error);
509 }
510 
511 static int
512 vgatext_detach(dev_info_t *devi, ddi_detach_cmd_t cmd)
513 {
514 	int instance = ddi_get_instance(devi);
515 	struct vgatext_softc *softc = getsoftc(instance);
516 
517 
518 	switch (cmd) {
519 	case DDI_DETACH:
520 		if (softc->agp_master != NULL) { /* agp initiated */
521 			agp_master_end(softc->agp_master);
522 
523 			kmem_free(softc->agp_master,
524 			    sizeof (agp_master_softc_t));
525 			softc->agp_master = NULL;
526 
527 		}
528 
529 		if (softc->fb.mapped)
530 			ddi_regs_map_free(&softc->fb.handle);
531 		if (softc->regs.mapped)
532 			ddi_regs_map_free(&softc->regs.handle);
533 		ddi_remove_minor_node(devi, NULL);
534 		(void) ddi_soft_state_free(vgatext_softc_head, instance);
535 		return (DDI_SUCCESS);
536 
537 	default:
538 		cmn_err(CE_WARN, "vgatext_detach: unknown cmd 0x%x\n", cmd);
539 		return (DDI_FAILURE);
540 	}
541 }
542 
543 /*ARGSUSED*/
544 static int
545 vgatext_info(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, void **result)
546 {
547 	dev_t dev;
548 	int error;
549 	int instance;
550 	struct vgatext_softc *softc;
551 
552 	error = DDI_SUCCESS;
553 
554 	dev = (dev_t)arg;
555 	instance = DEV2INST(dev);
556 	softc = getsoftc(instance);
557 
558 	switch (infocmd) {
559 	case DDI_INFO_DEVT2DEVINFO:
560 		if (softc == NULL || softc->devi == NULL) {
561 			error = DDI_FAILURE;
562 		} else {
563 			*result = (void *) softc->devi;
564 			error = DDI_SUCCESS;
565 		}
566 		break;
567 	case DDI_INFO_DEVT2INSTANCE:
568 		*result = (void *)(uintptr_t)instance;
569 		error = DDI_SUCCESS;
570 		break;
571 	default:
572 		error = DDI_FAILURE;
573 		break;
574 	}
575 	return (error);
576 }
577 
578 
579 /*ARGSUSED*/
580 static int
581 vgatext_open(dev_t *devp, int flag, int otyp, cred_t *cred)
582 {
583 	struct vgatext_softc *softc = getsoftc(DEV2INST(*devp));
584 
585 	if (softc == NULL || otyp == OTYP_BLK)
586 		return (ENXIO);
587 
588 	return (0);
589 }
590 
591 /*ARGSUSED*/
592 static int
593 vgatext_close(dev_t devp, int flag, int otyp, cred_t *cred)
594 {
595 	return (0);
596 }
597 
598 /*ARGSUSED*/
599 static int
600 vgatext_ioctl(
601     dev_t dev,
602     int cmd,
603     intptr_t data,
604     int mode,
605     cred_t *cred,
606     int *rval)
607 {
608 	struct vgatext_softc *softc = getsoftc(DEV2INST(dev));
609 	static char kernel_only[] = "vgatext_ioctl: %s is a kernel only ioctl";
610 	int err;
611 	int kd_mode;
612 
613 	switch (cmd) {
614 	case KDSETMODE:
615 		return (vgatext_kdsetmode(softc, (int)data));
616 
617 	case KDGETMODE:
618 		kd_mode = softc->mode;
619 		if (ddi_copyout(&kd_mode, (void *)data, sizeof (int), mode))
620 			return (EFAULT);
621 		break;
622 
623 	case VIS_GETIDENTIFIER:
624 		if (ddi_copyout(&text_ident, (void *)data,
625 		    sizeof (struct vis_identifier), mode))
626 			return (EFAULT);
627 		break;
628 
629 	case VIS_DEVINIT:
630 
631 	    if (!(mode & FKIOCTL)) {
632 		    cmn_err(CE_CONT, kernel_only, "VIS_DEVINIT");
633 		    return (ENXIO);
634 	    }
635 
636 	    err = vgatext_devinit(softc, (struct vis_devinit *)data);
637 	    if (err != 0) {
638 		    cmn_err(CE_WARN,
639 			"vgatext_ioctl:  could not initialize console");
640 		    return (err);
641 	    }
642 	    break;
643 
644 	case VIS_CONSCOPY:	/* move */
645 	{
646 	    struct vis_conscopy pma;
647 
648 	    if (ddi_copyin((void *)data, &pma,
649 		sizeof (struct vis_conscopy), mode))
650 		    return (EFAULT);
651 
652 	    vgatext_cons_copy(softc, &pma);
653 	    break;
654 	}
655 
656 	case VIS_CONSDISPLAY:	/* display */
657 	{
658 	    struct vis_consdisplay display_request;
659 
660 	    if (ddi_copyin((void *)data, &display_request,
661 		sizeof (display_request), mode))
662 		    return (EFAULT);
663 
664 	    vgatext_cons_display(softc, &display_request);
665 	    break;
666 	}
667 
668 	case VIS_CONSCURSOR:
669 	{
670 	    struct vis_conscursor cursor_request;
671 
672 	    if (ddi_copyin((void *)data, &cursor_request,
673 		sizeof (cursor_request), mode))
674 		    return (EFAULT);
675 
676 	    vgatext_cons_cursor(softc, &cursor_request);
677 
678 	    if (cursor_request.action == VIS_GET_CURSOR &&
679 		ddi_copyout(&cursor_request, (void *)data,
680 		sizeof (cursor_request), mode))
681 		    return (EFAULT);
682 	    break;
683 	}
684 
685 	case VIS_GETCMAP:
686 	case VIS_PUTCMAP:
687 	case FBIOPUTCMAP:
688 	case FBIOGETCMAP:
689 		/*
690 		 * At the moment, text mode is not considered to have
691 		 * a color map.
692 		 */
693 		return (EINVAL);
694 
695 	case FBIOGATTR:
696 		if (copyout(&vgatext_attr, (void *)data,
697 		    sizeof (struct fbgattr)))
698 			return (EFAULT);
699 		break;
700 
701 	case FBIOGTYPE:
702 		if (copyout(&vgatext_attr.fbtype, (void *)data,
703 		    sizeof (struct fbtype)))
704 			return (EFAULT);
705 		break;
706 
707 #if 0
708 	case GLY_LD_GLYPH:
709 	{
710 		temstat_t	*ap;
711 		da_t	da;
712 		struct glyph	g;
713 		int	size;
714 		uchar_t	*c;
715 
716 		if (ddi_copyin(arg, &g, sizeof (g), flag))
717 			return (EFAULT);
718 
719 		size = g.width * g.height;
720 		c = kmem_alloc(size, KM_SLEEP);
721 
722 		if (ddi_copyin(g.raster, c, size, flag)) {
723 			kmem_free(c, size);
724 			return (EFAULT);
725 		}
726 		ap = (temstat_t *)something;
727 		da.data = c;
728 		da.width = g.width;
729 		da.height = g.height;
730 		da.col = g.x_dest;
731 		da.row = g.y_dest;
732 		ap->a_fp.f_ad_display(ap->a_private, &da);
733 		kmem_free(c, size);
734 		return (0);
735 	}
736 #endif
737 	case DEVICE_DETECT:
738 	{
739 		agp_master_softc_t *agp_master;
740 
741 		if (!(mode & FKIOCTL)) {
742 			cmn_err(CE_CONT, kernel_only, "DEVICE_DETECT");
743 			return (ENXIO);
744 		}
745 		agp_master = softc->agp_master;
746 		ASSERT(agp_master);
747 
748 		if (!agp_master)
749 			return (EINVAL);
750 
751 		if (ddi_copyout(&agp_master->agpm_dev_type,
752 		    (void *)data, sizeof (int), mode))
753 			return (EFAULT);
754 		break;
755 	}
756 	case I8XX_GET_INFO:
757 	{
758 		agp_master_softc_t *agp_master;
759 
760 		if (!(mode & FKIOCTL)) {
761 			cmn_err(CE_CONT, kernel_only, "I8XX_GET_INFO");
762 			return (ENXIO);
763 		}
764 		agp_master = softc->agp_master;
765 		ASSERT(agp_master);
766 
767 		if (!agp_master)
768 			return (EINVAL);
769 		ASSERT(IS_IGD(agp_master));
770 
771 		if (!IS_IGD(agp_master))
772 			return (EINVAL);
773 
774 		if (ddi_copyout(&agp_master->agpm_data.agpm_gtt.gtt_info,
775 		    (void *)data, sizeof (igd_info_t), mode))
776 			return (EFAULT);
777 		break;
778 	}
779 	case I810_SET_GTT_BASE:
780 	{
781 		uint32_t base;
782 		uint32_t addr;
783 		agp_master_softc_t *agp_master;
784 
785 		if (!(mode & FKIOCTL)) {
786 			cmn_err(CE_CONT, kernel_only, "I8XX_SET_GTT_ADDR");
787 			return (ENXIO);
788 		}
789 		agp_master = softc->agp_master;
790 		ASSERT(agp_master);
791 		if (!agp_master)
792 			return (EINVAL);
793 		ASSERT(agp_master->agpm_dev_type == DEVICE_IS_I810);
794 
795 		if (agp_master->agpm_dev_type != DEVICE_IS_I810)
796 			return (EINVAL);
797 
798 		if (ddi_copyin((void *)data, &base, sizeof (uint32_t), mode))
799 			return (EFAULT);
800 
801 		/* enables page table */
802 		addr = (base & GTT_BASE_MASK) | GTT_TABLE_VALID;
803 
804 		ddi_put32(agp_master->agpm_data.agpm_gtt.gtt_mmio_handle,
805 		    (uint32_t *)(agp_master->agpm_data.agpm_gtt.gtt_mmio_base +
806 		    I8XX_PGTBL_CTL),
807 		    addr);
808 		break;
809 	}
810 	case I8XX_ADD2GTT:
811 	{
812 		igd_gtt_seg_t seg;
813 		agp_master_softc_t *agp_master;
814 
815 		if (!(mode & FKIOCTL)) {
816 			cmn_err(CE_CONT, kernel_only, "I8XX_ADD2GTT");
817 			return (ENXIO);
818 		}
819 		agp_master = softc->agp_master;
820 		ASSERT(agp_master);
821 		if (!agp_master)
822 			return (EINVAL);
823 		ASSERT(IS_IGD(agp_master));
824 
825 		if (!IS_IGD(agp_master))
826 			return (EINVAL);
827 
828 		if (ddi_copyin((void *)data, &seg,
829 		    sizeof (igd_gtt_seg_t), mode))
830 			return (EFAULT);
831 
832 		if (i8xx_add_to_gtt(&agp_master->agpm_data.agpm_gtt, seg))
833 			return (EINVAL);
834 		break;
835 	}
836 	case I8XX_REM_GTT:
837 	{
838 		igd_gtt_seg_t seg;
839 		agp_master_softc_t *agp_master;
840 
841 		if (!(mode & FKIOCTL)) {
842 			cmn_err(CE_CONT, kernel_only, "I8XX_REM_GTT");
843 			return (ENXIO);
844 		}
845 		agp_master = softc->agp_master;
846 		ASSERT(agp_master);
847 		if (!agp_master)
848 			return (EINVAL);
849 		ASSERT(IS_IGD(agp_master));
850 
851 		if (!IS_IGD(agp_master))
852 			return (EINVAL);
853 
854 		if (ddi_copyin((void *)data, &seg,
855 		    sizeof (igd_gtt_seg_t), mode))
856 			return (EFAULT);
857 
858 		i8xx_remove_from_gtt(&agp_master->agpm_data.agpm_gtt, seg);
859 		break;
860 	}
861 	case I8XX_UNCONFIG:
862 	{
863 		agp_master_softc_t *agp_master;
864 
865 		if (!(mode & FKIOCTL)) {
866 		    cmn_err(CE_CONT, kernel_only, "I8XX_UNCONFIG");
867 		    return (ENXIO);
868 		}
869 		agp_master = softc->agp_master;
870 		ASSERT(agp_master);
871 		if (!agp_master)
872 			return (EINVAL);
873 		ASSERT(IS_IGD(agp_master));
874 
875 		if (!IS_IGD(agp_master))
876 			return (EINVAL);
877 
878 		if (agp_master->agpm_dev_type == DEVICE_IS_I810)
879 			ddi_put32(
880 			    agp_master->agpm_data.agpm_gtt.gtt_mmio_handle,
881 			    (uint32_t *)
882 			    (agp_master->agpm_data.agpm_gtt.gtt_mmio_base +
883 			    I8XX_PGTBL_CTL),
884 			    0);
885 		/*
886 		 * may clear all gtt entries here for i830,
887 		 * but may not be necessary
888 		 */
889 		break;
890 	}
891 	case AGP_MASTER_GETINFO:
892 	{
893 		agp_info_t info;
894 		uint32_t value;
895 		off_t cap;
896 		agp_master_softc_t *agp_master;
897 
898 		if (!(mode & FKIOCTL)) {
899 			cmn_err(CE_CONT, kernel_only, "AGP_MASTER_GETINFO");
900 			return (ENXIO);
901 		}
902 		agp_master = softc->agp_master;
903 		ASSERT(agp_master);
904 		if (!agp_master)
905 			return (EINVAL);
906 		ASSERT(agp_master->agpm_dev_type == DEVICE_IS_AGP);
907 		if (agp_master->agpm_dev_type != DEVICE_IS_AGP)
908 			return (EINVAL);
909 
910 		ASSERT(agp_master->agpm_data.agpm_acaptr);
911 		if (agp_master->agpm_data.agpm_acaptr == 0)
912 			return (EINVAL);
913 
914 		cap = agp_master->agpm_data.agpm_acaptr;
915 		value = pci_config_get32(agp_master->agpm_acc_hdl, cap);
916 		info.agpi_version.agpv_major = (uint16_t)((value >> 20) & 0xf);
917 		info.agpi_version.agpv_minor = (uint16_t)((value >> 16) & 0xf);
918 		info.agpi_devid = agp_master->agpm_id;
919 		info.agpi_mode = pci_config_get32(
920 		    agp_master->agpm_acc_hdl, cap + AGP_CONF_STATUS);
921 
922 		if (ddi_copyout(&info, (void *)data,
923 		    sizeof (agp_info_t), mode))
924 			return (EFAULT);
925 		break;
926 	}
927 	case AGP_MASTER_SETCMD:
928 	{
929 		uint32_t command;
930 		agp_master_softc_t *agp_master;
931 
932 		if (!(mode & FKIOCTL)) {
933 			cmn_err(CE_CONT, kernel_only, "AGP_MASTER_SETCMD");
934 			return (ENXIO);
935 		}
936 		agp_master = softc->agp_master;
937 		ASSERT(agp_master);
938 		if (!agp_master)
939 			return (EINVAL);
940 		ASSERT(agp_master->agpm_dev_type == DEVICE_IS_AGP);
941 		if (agp_master->agpm_dev_type != DEVICE_IS_AGP)
942 			return (EINVAL);
943 
944 		ASSERT(agp_master->agpm_data.agpm_acaptr);
945 		if (agp_master->agpm_data.agpm_acaptr == 0)
946 			return (EINVAL);
947 
948 		if (ddi_copyin((void *)data, &command,
949 		    sizeof (uint32_t), mode))
950 			return (EFAULT);
951 
952 		pci_config_put32(agp_master->agpm_acc_hdl,
953 		    agp_master->agpm_data.agpm_acaptr + AGP_CONF_COMMAND,
954 		    command);
955 		break;
956 
957 	}
958 	default:
959 		return (ENXIO);
960 	}
961 	return (0);
962 }
963 
964 static int
965 vgatext_kdsetmode(struct vgatext_softc *softc, int mode)
966 {
967 	int i;
968 
969 	if (mode == softc->mode)
970 		return (0);
971 
972 	switch (mode) {
973 	case KD_TEXT:
974 		vgatext_init(softc);
975 		for (i = 0; i < sizeof (softc->shadow); i++) {
976 			softc->text_base[i] = softc->shadow[i];
977 		}
978 		softc->current_base = softc->text_base;
979 		if (softc->cursor.visible) {
980 			vgatext_set_cursor(softc,
981 				softc->cursor.row, softc->cursor.col);
982 		}
983 		vgatext_restore_colormap(softc);
984 		break;
985 
986 	case KD_GRAPHICS:
987 		if (vgatext_silent == 1) {
988 			extern void progressbar_stop(void);
989 
990 			vgatext_silent = 0;
991 			progressbar_stop();
992 		}
993 		for (i = 0; i < sizeof (softc->shadow); i++) {
994 			softc->shadow[i] = softc->text_base[i];
995 		}
996 		softc->current_base = softc->shadow;
997 #if	defined(USE_BORDERS)
998 		vgatext_init_graphics(softc);
999 #endif
1000 		break;
1001 
1002 	default:
1003 		return (EINVAL);
1004 	}
1005 	softc->mode = mode;
1006 	return (0);
1007 }
1008 
1009 /*ARGSUSED*/
1010 static int
1011 vgatext_devmap(dev_t dev, devmap_cookie_t dhp, offset_t off, size_t len,
1012 		size_t *maplen, uint_t model)
1013 {
1014 	struct vgatext_softc *softc;
1015 	int err;
1016 	size_t length;
1017 
1018 
1019 	softc = getsoftc(DEV2INST(dev));
1020 	if (softc == NULL) {
1021 		cmn_err(CE_WARN, "vgatext: Can't find softstate");
1022 		return (-1);
1023 	}
1024 
1025 	if (!(off >= VGA_MMAP_FB_BASE &&
1026 		off < VGA_MMAP_FB_BASE + softc->fb_size)) {
1027 		cmn_err(CE_WARN, "vgatext: Can't map offset 0x%llx", off);
1028 		return (-1);
1029 	}
1030 
1031 	if (off + len > VGA_MMAP_FB_BASE + softc->fb_size)
1032 		length = VGA_MMAP_FB_BASE + softc->fb_size - off;
1033 	else
1034 		length = len;
1035 
1036 	if ((err = devmap_devmem_setup(dhp, softc->devi, NULL, softc->fb_regno,
1037 					off - VGA_MMAP_FB_BASE,
1038 					length, PROT_ALL, 0, &dev_attr)) < 0) {
1039 		return (err);
1040 	}
1041 
1042 
1043 	*maplen = length;
1044 	return (0);
1045 }
1046 
1047 
1048 static int
1049 vgatext_devinit(struct vgatext_softc *softc, struct vis_devinit *data)
1050 {
1051 	/* initialize console instance */
1052 	data->version = VIS_CONS_REV;
1053 	data->width = TEXT_COLS;
1054 	data->height = TEXT_ROWS;
1055 	data->linebytes = TEXT_COLS;
1056 	data->depth = 4;
1057 	data->mode = VIS_TEXT;
1058 	data->polledio = &softc->polledio;
1059 
1060 	return (0);
1061 }
1062 
1063 /*
1064  * display a string on the screen at (row, col)
1065  *	 assume it has been cropped to fit.
1066  */
1067 
1068 static void
1069 vgatext_cons_display(struct vgatext_softc *softc, struct vis_consdisplay *da)
1070 {
1071 	unsigned char	*string;
1072 	int	i;
1073 	unsigned char	attr;
1074 	struct cgatext {
1075 		unsigned char ch;
1076 		unsigned char attr;
1077 	};
1078 	struct cgatext *addr;
1079 
1080 	if (vgatext_silent)
1081 		return;
1082 	/*
1083 	 * Sanity checks.  This is a last-ditch effort to avoid damage
1084 	 * from brokenness or maliciousness above.
1085 	 */
1086 	if (da->row < 0 || da->row >= TEXT_ROWS ||
1087 	    da->col < 0 || da->col >= TEXT_COLS ||
1088 	    da->col + da->width > TEXT_COLS)
1089 		return;
1090 
1091 	/*
1092 	 * To be fully general, we should copyin the data.  This is not
1093 	 * really relevant for this text-only driver, but a graphical driver
1094 	 * should support these ioctls from userland to enable simple
1095 	 * system startup graphics.
1096 	 */
1097 	attr = (solaris_color_to_pc_color[da->bg_color & 0xf] << 4)
1098 		| solaris_color_to_pc_color[da->fg_color & 0xf];
1099 	string = da->data;
1100 	addr = (struct cgatext *)softc->current_base
1101 		+  (da->row * TEXT_COLS + da->col);
1102 	for (i = 0; i < da->width; i++) {
1103 		addr->ch = string[i];
1104 		addr->attr = attr;
1105 		addr++;
1106 	}
1107 }
1108 
1109 static void
1110 vgatext_polled_display(
1111 	struct vis_polledio_arg *arg,
1112 	struct vis_consdisplay *da)
1113 {
1114 	vgatext_cons_display((struct vgatext_softc *)arg, da);
1115 }
1116 
1117 /*
1118  * screen-to-screen copy
1119  */
1120 
1121 static void
1122 vgatext_cons_copy(struct vgatext_softc *softc, struct vis_conscopy *ma)
1123 {
1124 	unsigned short	*from;
1125 	unsigned short	*to;
1126 	int		cnt;
1127 	screen_size_t chars_per_row;
1128 	unsigned short	*to_row_start;
1129 	unsigned short	*from_row_start;
1130 	screen_size_t	rows_to_move;
1131 	unsigned short	*base;
1132 
1133 	if (vgatext_silent)
1134 		return;
1135 
1136 	/*
1137 	 * Sanity checks.  Note that this is a last-ditch effort to avoid
1138 	 * damage caused by broken-ness or maliciousness above.
1139 	 */
1140 	if (ma->s_col < 0 || ma->s_col >= TEXT_COLS ||
1141 	    ma->s_row < 0 || ma->s_row >= TEXT_ROWS ||
1142 	    ma->e_col < 0 || ma->e_col >= TEXT_COLS ||
1143 	    ma->e_row < 0 || ma->e_row >= TEXT_ROWS ||
1144 	    ma->t_col < 0 || ma->t_col >= TEXT_COLS ||
1145 	    ma->t_row < 0 || ma->t_row >= TEXT_ROWS ||
1146 	    ma->s_col > ma->e_col ||
1147 	    ma->s_row > ma->e_row)
1148 		return;
1149 
1150 	/*
1151 	 * Remember we're going to copy shorts because each
1152 	 * character/attribute pair is 16 bits.
1153 	 */
1154 	chars_per_row = ma->e_col - ma->s_col + 1;
1155 	rows_to_move = ma->e_row - ma->s_row + 1;
1156 
1157 	/* More sanity checks. */
1158 	if (ma->t_row + rows_to_move > TEXT_ROWS ||
1159 	    ma->t_col + chars_per_row > TEXT_COLS)
1160 		return;
1161 
1162 	base = (unsigned short *)softc->current_base;
1163 
1164 	to_row_start = base + ((ma->t_row * TEXT_COLS) + ma->t_col);
1165 	from_row_start = base + ((ma->s_row * TEXT_COLS) + ma->s_col);
1166 
1167 	if (to_row_start < from_row_start) {
1168 		while (rows_to_move-- > 0) {
1169 			to = to_row_start;
1170 			from = from_row_start;
1171 			to_row_start += TEXT_COLS;
1172 			from_row_start += TEXT_COLS;
1173 			for (cnt = chars_per_row; cnt-- > 0; )
1174 				*to++ = *from++;
1175 		}
1176 	} else {
1177 		/*
1178 		 * Offset to the end of the region and copy backwards.
1179 		 */
1180 		cnt = rows_to_move * TEXT_COLS + chars_per_row;
1181 		to_row_start += cnt;
1182 		from_row_start += cnt;
1183 
1184 		while (rows_to_move-- > 0) {
1185 			to_row_start -= TEXT_COLS;
1186 			from_row_start -= TEXT_COLS;
1187 			to = to_row_start;
1188 			from = from_row_start;
1189 			for (cnt = chars_per_row; cnt-- > 0; )
1190 				*--to = *--from;
1191 		}
1192 	}
1193 }
1194 
1195 static void
1196 vgatext_polled_copy(
1197 	struct vis_polledio_arg *arg,
1198 	struct vis_conscopy *ca)
1199 {
1200 	vgatext_cons_copy((struct vgatext_softc *)arg, ca);
1201 }
1202 
1203 
1204 static void
1205 vgatext_cons_cursor(struct vgatext_softc *softc, struct vis_conscursor *ca)
1206 {
1207 	if (vgatext_silent)
1208 		return;
1209 
1210 	switch (ca->action) {
1211 	case VIS_HIDE_CURSOR:
1212 		softc->cursor.visible = B_FALSE;
1213 		if (softc->current_base == softc->text_base)
1214 			vgatext_hide_cursor(softc);
1215 		break;
1216 	case VIS_DISPLAY_CURSOR:
1217 		/*
1218 		 * Sanity check.  This is a last-ditch effort to avoid
1219 		 * damage from brokenness or maliciousness above.
1220 		 */
1221 		if (ca->col < 0 || ca->col >= TEXT_COLS ||
1222 		    ca->row < 0 || ca->row >= TEXT_ROWS)
1223 			return;
1224 
1225 		softc->cursor.visible = B_TRUE;
1226 		softc->cursor.col = ca->col;
1227 		softc->cursor.row = ca->row;
1228 		if (softc->current_base == softc->text_base)
1229 			vgatext_set_cursor(softc, ca->row, ca->col);
1230 		break;
1231 	case VIS_GET_CURSOR:
1232 		if (softc->current_base == softc->text_base) {
1233 			vgatext_get_cursor(softc, &ca->row, &ca->col);
1234 		}
1235 		break;
1236 	}
1237 }
1238 
1239 static void
1240 vgatext_polled_cursor(
1241 	struct vis_polledio_arg *arg,
1242 	struct vis_conscursor *ca)
1243 {
1244 	vgatext_cons_cursor((struct vgatext_softc *)arg, ca);
1245 }
1246 
1247 
1248 
1249 /*ARGSUSED*/
1250 static void
1251 vgatext_hide_cursor(struct vgatext_softc *softc)
1252 {
1253 	/* Nothing at present */
1254 }
1255 
1256 static void
1257 vgatext_set_cursor(struct vgatext_softc *softc, int row, int col)
1258 {
1259 	short	addr;
1260 
1261 	if (vgatext_silent)
1262 		return;
1263 
1264 	addr = row * TEXT_COLS + col;
1265 
1266 	vga_set_crtc(&softc->regs, VGA_CRTC_CLAH, addr >> 8);
1267 	vga_set_crtc(&softc->regs, VGA_CRTC_CLAL, addr & 0xff);
1268 }
1269 
1270 static int vga_row, vga_col;
1271 
1272 static void
1273 vgatext_get_cursor(struct vgatext_softc *softc,
1274     screen_pos_t *row, screen_pos_t *col)
1275 {
1276 	short   addr;
1277 
1278 	addr = (vga_get_crtc(&softc->regs, VGA_CRTC_CLAH) << 8) +
1279 	    vga_get_crtc(&softc->regs, VGA_CRTC_CLAL);
1280 
1281 	vga_row = *row = addr / TEXT_COLS;
1282 	vga_col = *col = addr % TEXT_COLS;
1283 }
1284 
1285 /*
1286  * This code is experimental. It's only enabled if console is
1287  * set to graphics, a preliminary implementation of happyface boot.
1288  */
1289 static void
1290 vgatext_set_text(struct vgatext_softc *softc)
1291 {
1292 	int i;
1293 
1294 	if (happyface_boot == 0)
1295 		return;
1296 
1297 	/* we are in graphics mode, set to text 80X25 mode */
1298 
1299 	/* set misc registers */
1300 	vga_set_reg(&softc->regs, VGA_MISC_W, VGA_MISC_TEXT);
1301 
1302 	/* set sequencer registers */
1303 	vga_set_seq(&softc->regs, VGA_SEQ_RST_SYN,
1304 		(vga_get_seq(&softc->regs, VGA_SEQ_RST_SYN) &
1305 		~VGA_SEQ_RST_SYN_NO_SYNC_RESET));
1306 	for (i = 1; i < NUM_SEQ_REG; i++) {
1307 		vga_set_seq(&softc->regs, i, VGA_SEQ_TEXT[i]);
1308 	}
1309 	vga_set_seq(&softc->regs, VGA_SEQ_RST_SYN,
1310 		(vga_get_seq(&softc->regs, VGA_SEQ_RST_SYN) |
1311 		VGA_SEQ_RST_SYN_NO_ASYNC_RESET |
1312 		VGA_SEQ_RST_SYN_NO_SYNC_RESET));
1313 
1314 	/* set crt controller registers */
1315 	vga_set_crtc(&softc->regs, VGA_CRTC_VRE,
1316 		(vga_get_crtc(&softc->regs, VGA_CRTC_VRE) &
1317 		~VGA_CRTC_VRE_LOCK));
1318 	for (i = 0; i < NUM_CRTC_REG; i++) {
1319 		vga_set_crtc(&softc->regs, i, VGA_CRTC_TEXT[i]);
1320 	}
1321 
1322 	/* set graphics controller registers */
1323 	for (i = 0; i < NUM_GRC_REG; i++) {
1324 		vga_set_grc(&softc->regs, i, VGA_GRC_TEXT[i]);
1325 	}
1326 
1327 	/* set attribute registers */
1328 	for (i = 0; i < NUM_ATR_REG; i++) {
1329 		vga_set_atr(&softc->regs, i, VGA_ATR_TEXT[i]);
1330 	}
1331 
1332 	/* set palette */
1333 	for (i = 0; i < VGA_TEXT_CMAP_ENTRIES; i++) {
1334 		vga_put_cmap(&softc->regs, i, VGA_TEXT_PALETTES[i][0] << 2,
1335 			VGA_TEXT_PALETTES[i][1] << 2,
1336 			VGA_TEXT_PALETTES[i][2] << 2);
1337 	}
1338 	for (i = VGA_TEXT_CMAP_ENTRIES; i < VGA8_CMAP_ENTRIES; i++) {
1339 		vga_put_cmap(&softc->regs, i, 0, 0, 0);
1340 	}
1341 
1342 	vgatext_save_colormap(softc);
1343 }
1344 
1345 static void
1346 vgatext_init(struct vgatext_softc *softc)
1347 {
1348 	unsigned char atr_mode;
1349 
1350 	atr_mode = vga_get_atr(&softc->regs, VGA_ATR_MODE);
1351 	if (atr_mode & VGA_ATR_MODE_GRAPH)
1352 		vgatext_set_text(softc);
1353 	atr_mode = vga_get_atr(&softc->regs, VGA_ATR_MODE);
1354 	atr_mode &= ~VGA_ATR_MODE_BLINK;
1355 	atr_mode &= ~VGA_ATR_MODE_9WIDE;
1356 	vga_set_atr(&softc->regs, VGA_ATR_MODE, atr_mode);
1357 #if	defined(USE_BORDERS)
1358 	vga_set_atr(&softc->regs, VGA_ATR_BDR_CLR,
1359 		vga_get_atr(&softc->regs, VGA_BRIGHT_WHITE));
1360 #else
1361 	vga_set_atr(&softc->regs, VGA_ATR_BDR_CLR,
1362 		vga_get_atr(&softc->regs, VGA_BLACK));
1363 #endif
1364 	vgatext_setfont(softc);	/* need selectable font? */
1365 }
1366 
1367 #if	defined(USE_BORDERS)
1368 static void
1369 vgatext_init_graphics(struct vgatext_softc *softc)
1370 {
1371 	vga_set_atr(&softc->regs, VGA_ATR_BDR_CLR,
1372 		vga_get_atr(&softc->regs, VGA_BLACK));
1373 }
1374 #endif
1375 
1376 static char vga_fontslot = 0;
1377 
1378 static void
1379 vgatext_setfont(struct vgatext_softc *softc)
1380 {
1381 	static uchar_t fsreg[8] = {0x0, 0x30, 0x5, 0x35, 0xa, 0x3a, 0xf, 0x3f};
1382 
1383 	extern unsigned char *ENCODINGS[];
1384 	uchar_t *from;
1385 	uchar_t volatile *to;
1386 	int	i, j, s;
1387 	int	bpc, f_offset;
1388 
1389 	/* Sync-reset the sequencer registers */
1390 	vga_set_seq(&softc->regs, 0x00, 0x01);
1391 	/*
1392 	 *  enable write to plane2, since fonts
1393 	 * could only be loaded into plane2
1394 	 */
1395 	vga_set_seq(&softc->regs, 0x02, 0x04);
1396 	/*
1397 	 *  sequentially access data in the bit map being
1398 	 * selected by MapMask register (index 0x02)
1399 	 */
1400 	vga_set_seq(&softc->regs, 0x04, 0x07);
1401 	/* Sync-reset ended, and allow the sequencer to operate */
1402 	vga_set_seq(&softc->regs, 0x00, 0x03);
1403 
1404 	/*
1405 	 *  select plane 2 on Read Mode 0
1406 	 */
1407 	vga_set_grc(&softc->regs, 0x04, 0x02);
1408 	/*
1409 	 *  system addresses sequentially access data, follow
1410 	 * Memory Mode register bit 2 in the sequencer
1411 	 */
1412 	vga_set_grc(&softc->regs, 0x05, 0x00);
1413 	/*
1414 	 * set range of host memory addresses decoded by VGA
1415 	 * hardware -- A0000h-BFFFFh (128K region)
1416 	 */
1417 	vga_set_grc(&softc->regs, 0x06, 0x00);
1418 
1419 	/*
1420 	 * This assumes 8x16 characters, which yield the traditional 80x25
1421 	 * screen.  It really should support other character heights.
1422 	 */
1423 	bpc = 16;
1424 	s = vga_fontslot;
1425 	f_offset = s * 8 * 1024;
1426 	for (i = 0; i < 256; i++) {
1427 		from = ENCODINGS[i];
1428 		to = (unsigned char *)softc->fb.addr + f_offset + i * 0x20;
1429 		for (j = 0; j < bpc; j++)
1430 			*to++ = *from++;
1431 	}
1432 
1433 	/* Sync-reset the sequencer registers */
1434 	vga_set_seq(&softc->regs, 0x00, 0x01);
1435 	/* enable write to plane 0 and 1 */
1436 	vga_set_seq(&softc->regs, 0x02, 0x03);
1437 	/*
1438 	 * enable character map selection
1439 	 * and odd/even addressing
1440 	 */
1441 	vga_set_seq(&softc->regs, 0x04, 0x03);
1442 	/*
1443 	 * select font map
1444 	 */
1445 	vga_set_seq(&softc->regs, 0x03, fsreg[s]);
1446 	/* Sync-reset ended, and allow the sequencer to operate */
1447 	vga_set_seq(&softc->regs, 0x00, 0x03);
1448 
1449 	/* restore graphic registers */
1450 
1451 	/* select plane 0 */
1452 	vga_set_grc(&softc->regs, 0x04, 0x00);
1453 	/* enable odd/even addressing mode */
1454 	vga_set_grc(&softc->regs, 0x05, 0x10);
1455 	/*
1456 	 * range of host memory addresses decoded by VGA
1457 	 * hardware -- B8000h-BFFFFh (32K region)
1458 	 */
1459 	vga_set_grc(&softc->regs, 0x06, 0x0e);
1460 	/* enable all color plane */
1461 	vga_set_atr(&softc->regs, 0x12, 0x0f);
1462 
1463 }
1464 
1465 static void
1466 vgatext_save_colormap(struct vgatext_softc *softc)
1467 {
1468 	int i;
1469 
1470 	for (i = 0; i < VGA_ATR_NUM_PLT; i++) {
1471 		softc->attrib_palette[i] = vga_get_atr(&softc->regs, i);
1472 	}
1473 	for (i = 0; i < VGA8_CMAP_ENTRIES; i++) {
1474 		vga_get_cmap(&softc->regs, i,
1475 			&softc->colormap[i].red,
1476 			&softc->colormap[i].green,
1477 			&softc->colormap[i].blue);
1478 	}
1479 }
1480 
1481 static void
1482 vgatext_restore_colormap(struct vgatext_softc *softc)
1483 {
1484 	int i;
1485 
1486 	for (i = 0; i < VGA_ATR_NUM_PLT; i++) {
1487 		vga_set_atr(&softc->regs, i, softc->attrib_palette[i]);
1488 	}
1489 	for (i = 0; i < VGA8_CMAP_ENTRIES; i++) {
1490 		vga_put_cmap(&softc->regs, i,
1491 			softc->colormap[i].red,
1492 			softc->colormap[i].green,
1493 			softc->colormap[i].blue);
1494 	}
1495 }
1496 
1497 /*
1498  * search the entries of the "reg" property for one which has the desired
1499  * combination of phys_hi bits and contains the desired address.
1500  *
1501  * This version searches a PCI-style "reg" property.  It was prompted by
1502  * issues surrounding the presence or absence of an entry for the ROM:
1503  * (a) a transition problem with PowerPC Virtual Open Firmware
1504  * (b) uncertainty as to whether an entry will be included on a device
1505  *     with ROM support (and so an "active" ROM base address register),
1506  *     but no ROM actually installed.
1507  *
1508  * See the note below on vgatext_get_isa_reg_index for the reasons for
1509  * returning the offset.
1510  *
1511  * Note that this routine may not be fully general; it is intended for the
1512  * specific purpose of finding a couple of particular VGA reg entries and
1513  * may not be suitable for all reg-searching purposes.
1514  */
1515 static int
1516 vgatext_get_pci_reg_index(
1517 	dev_info_t *const devi,
1518 	unsigned long himask,
1519 	unsigned long hival,
1520 	unsigned long addr,
1521 	off_t *offset)
1522 {
1523 
1524 	int			length, index;
1525 	pci_regspec_t	*reg;
1526 
1527 	if (ddi_getlongprop(DDI_DEV_T_ANY, devi, DDI_PROP_DONTPASS,
1528 		"reg", (caddr_t)&reg, &length) != DDI_PROP_SUCCESS) {
1529 		return (-1);
1530 	}
1531 
1532 	for (index = 0; index < length / sizeof (pci_regspec_t); index++) {
1533 		if ((reg[index].pci_phys_hi & himask) != hival)
1534 			continue;
1535 		if (reg[index].pci_size_hi != 0)
1536 			continue;
1537 		if (reg[index].pci_phys_mid != 0)
1538 			continue;
1539 		if (reg[index].pci_phys_low > addr)
1540 			continue;
1541 		if (reg[index].pci_phys_low + reg[index].pci_size_low <= addr)
1542 			continue;
1543 
1544 		*offset = addr - reg[index].pci_phys_low;
1545 		kmem_free(reg, (size_t)length);
1546 		return (index);
1547 	}
1548 	kmem_free(reg, (size_t)length);
1549 
1550 	return (-1);
1551 }
1552 
1553 /*
1554  * search the entries of the "reg" property for one which has the desired
1555  * combination of phys_hi bits and contains the desired address.
1556  *
1557  * This version searches a ISA-style "reg" property.  It was prompted by
1558  * issues surrounding 8514/A support.  By IEEE 1275 compatibility conventions,
1559  * 8514/A registers should have been added after all standard VGA registers.
1560  * Unfortunately, the Solaris/Intel device configuration framework
1561  * (a) lists the 8514/A registers before the video memory, and then
1562  * (b) also sorts the entries so that I/O entries come before memory
1563  *     entries.
1564  *
1565  * It returns the "reg" index and offset into that register set.
1566  * The offset is needed because there exist (broken?) BIOSes that
1567  * report larger ranges enclosing the standard ranges.  One reports
1568  * 0x3bf for 0x21 instead of 0x3c0 for 0x20, for instance.  Using the
1569  * offset adjusts for this difference in the base of the register set.
1570  *
1571  * Note that this routine may not be fully general; it is intended for the
1572  * specific purpose of finding a couple of particular VGA reg entries and
1573  * may not be suitable for all reg-searching purposes.
1574  */
1575 static int
1576 vgatext_get_isa_reg_index(
1577 	dev_info_t *const devi,
1578 	unsigned long hival,
1579 	unsigned long addr,
1580 	off_t *offset)
1581 {
1582 
1583 	int		length, index;
1584 	struct regspec	*reg;
1585 
1586 	if (ddi_getlongprop(DDI_DEV_T_ANY, devi, DDI_PROP_DONTPASS,
1587 		"reg", (caddr_t)&reg, &length) != DDI_PROP_SUCCESS) {
1588 		return (-1);
1589 	}
1590 
1591 	for (index = 0; index < length / sizeof (struct regspec); index++) {
1592 		if (reg[index].regspec_bustype != hival)
1593 			continue;
1594 		if (reg[index].regspec_addr > addr)
1595 			continue;
1596 		if (reg[index].regspec_addr + reg[index].regspec_size <= addr)
1597 			continue;
1598 
1599 		*offset = addr - reg[index].regspec_addr;
1600 		kmem_free(reg, (size_t)length);
1601 		return (index);
1602 	}
1603 	kmem_free(reg, (size_t)length);
1604 
1605 	return (-1);
1606 }
1607 
1608 /*
1609  * If AGP cap pointer is successfully found, none-zero value is returned.
1610  * Otherwise 0 is returned.
1611  */
1612 static off_t
1613 agp_master_cap_find(ddi_acc_handle_t acc_handle)
1614 {
1615 	off_t		nextcap;
1616 	uint32_t	ncapid;
1617 	uint8_t		value;
1618 
1619 	/* check if this device supports capibility pointer */
1620 	value = (uint8_t)(pci_config_get16(acc_handle, PCI_CONF_STAT)
1621 			    & PCI_CONF_CAP_MASK);
1622 
1623 	if (!value)
1624 		return (0);
1625 	/* get the offset of the first capability pointer from CAPPTR */
1626 	nextcap = (off_t)(pci_config_get8(acc_handle, AGP_CONF_CAPPTR));
1627 
1628 	/* check AGP capability from the first capability pointer */
1629 	while (nextcap) {
1630 		ncapid = pci_config_get32(acc_handle, nextcap);
1631 		if ((ncapid & PCI_CONF_CAPID_MASK)
1632 		    == AGP_CAP_ID) /* find AGP cap */
1633 			break;
1634 
1635 		nextcap = (off_t)((ncapid & PCI_CONF_NCAPID_MASK) >> 8);
1636 	}
1637 
1638 	return (nextcap);
1639 
1640 }
1641 
1642 /*
1643  * If i8xx device is successfully detected, 0 is returned.
1644  * Otherwise -1 is returned.
1645  */
1646 static int
1647 detect_i8xx_device(agp_master_softc_t *master_softc)
1648 {
1649 
1650 	switch (master_softc->agpm_id) {
1651 	case INTEL_IGD_810:
1652 	case INTEL_IGD_810DC:
1653 	case INTEL_IGD_810E:
1654 	case INTEL_IGD_815:
1655 		master_softc->agpm_dev_type = DEVICE_IS_I810;
1656 		break;
1657 	case INTEL_IGD_830M:
1658 	case INTEL_IGD_845G:
1659 	case INTEL_IGD_855GM:
1660 	case INTEL_IGD_865G:
1661 	case INTEL_IGD_910:
1662 	case INTEL_IGD_910M:
1663 		master_softc->agpm_dev_type = DEVICE_IS_I830;
1664 		break;
1665 	default:		/* unknown id */
1666 		return (-1);
1667 	}
1668 
1669 	return (0);
1670 }
1671 
1672 /*
1673  * If agp master is succssfully detected, 0 is returned.
1674  * Otherwise -1 is returned.
1675  */
1676 static int
1677 detect_agp_devcice(agp_master_softc_t *master_softc)
1678 {
1679 	off_t cap;
1680 
1681 	cap = agp_master_cap_find(master_softc->agpm_acc_hdl);
1682 	if (cap) {
1683 		master_softc->agpm_dev_type = DEVICE_IS_AGP;
1684 		master_softc->agpm_data.agpm_acaptr = cap;
1685 		return (0);
1686 	} else {
1687 		return (-1);
1688 	}
1689 
1690 }
1691 
1692 /*
1693  * If agp master is successfully initialized, 0 is returned.
1694  * Otherwise -1 is returned.
1695  */
1696 static int
1697 agp_master_init(struct vgatext_softc *softc)
1698 {
1699 	dev_info_t *devi;
1700 	int instance;
1701 	int status;
1702 	agp_master_softc_t *agp_master;
1703 	uint32_t value;
1704 	off_t reg_size;
1705 
1706 
1707 	ASSERT(softc);
1708 	agp_master = softc->agp_master;
1709 
1710 	devi = softc->devi;
1711 
1712 	instance = ddi_get_instance(devi);
1713 
1714 	status = pci_config_setup(devi, &agp_master->agpm_acc_hdl);
1715 
1716 	if (status != DDI_SUCCESS) {
1717 		cmn_err(CE_WARN, "agp_master_init: pci_config_setup failed");
1718 		return (-1);
1719 	}
1720 
1721 	agp_master->agpm_id =
1722 	    pci_config_get32(agp_master->agpm_acc_hdl, PCI_CONF_VENID);
1723 
1724 	if (!detect_i8xx_device(agp_master)) {
1725 		/* map mmio register set */
1726 		if ((agp_master->agpm_id == INTEL_IGD_910) ||
1727 		    (agp_master->agpm_id == INTEL_IGD_910M)) {
1728 			status = ddi_regs_map_setup(devi, I915_GTTADDR_BAR,
1729 			    &agp_master->agpm_data.agpm_gtt.gtt_mmio_base,
1730 			    0, 0, &i8xx_dev_access,
1731 			    &agp_master->agpm_data.agpm_gtt.gtt_mmio_handle);
1732 
1733 		} else {
1734 			status = ddi_regs_map_setup(devi, I8XX_MMIO_REGSET,
1735 			    &agp_master->agpm_data.agpm_gtt.gtt_mmio_base,
1736 			    0, 0, &i8xx_dev_access,
1737 			    &agp_master->agpm_data.agpm_gtt.gtt_mmio_handle);
1738 		}
1739 
1740 		if (status != DDI_SUCCESS) {
1741 			cmn_err(CE_WARN,
1742 			    "agp_master_init: ddi_regs_map_setup failed");
1743 			agp_master_end(agp_master);
1744 			return (-1);
1745 		}
1746 		/* get GTT range base offset */
1747 		if ((agp_master->agpm_id == INTEL_IGD_910) ||
1748 		    (agp_master->agpm_id == INTEL_IGD_910M)) {
1749 			agp_master->agpm_data.agpm_gtt.gtt_addr =
1750 			    agp_master->agpm_data.agpm_gtt.gtt_mmio_base;
1751 		} else
1752 			agp_master->agpm_data.agpm_gtt.gtt_addr =
1753 			    agp_master->agpm_data.agpm_gtt.gtt_mmio_base +
1754 			    I8XX_PTE_OFFSET;
1755 
1756 		/* get graphics memory size */
1757 		if ((agp_master->agpm_id == INTEL_IGD_910) ||
1758 		    (agp_master->agpm_id == INTEL_IGD_910M)) {
1759 			status = ddi_dev_regsize(devi, I915_FB_REGSET,
1760 			    &reg_size);
1761 		} else
1762 			status = ddi_dev_regsize(devi, I8XX_FB_REGSET,
1763 			    &reg_size);
1764 		/*
1765 		 * if memory size is smaller than a certain value, it means
1766 		 * the register set number for graphics memory range might
1767 		 * be wrong
1768 		 */
1769 		if (status != DDI_SUCCESS || reg_size < 0x400000) {
1770 			cmn_err(CE_WARN,
1771 			    "agp_master_init: ddi_dev_regsize error");
1772 			agp_master_end(agp_master);
1773 			return (-1);
1774 		}
1775 
1776 		agp_master->agpm_data.agpm_gtt.gtt_info.igd_apersize =
1777 		    BYTES2MB(reg_size);
1778 
1779 		if ((agp_master->agpm_id == INTEL_IGD_910) ||
1780 		    (agp_master->agpm_id == INTEL_IGD_910M))
1781 			value = pci_config_get32(agp_master->agpm_acc_hdl,
1782 			    I915_CONF_GMADR);
1783 		else
1784 			value = pci_config_get32(agp_master->agpm_acc_hdl,
1785 			    I8XX_CONF_GMADR);
1786 		agp_master->agpm_data.agpm_gtt.gtt_info.igd_aperbase =
1787 		    value & GTT_BASE_MASK;
1788 		agp_master->agpm_data.agpm_gtt.gtt_info.igd_devid =
1789 		    agp_master->agpm_id;
1790 	} else if (detect_agp_devcice(agp_master)) {
1791 		/*
1792 		 * non IGD or AGP devices, not error
1793 		 */
1794 		agp_master_end(agp_master);
1795 		return (-1);
1796 	}
1797 
1798 	/* create extra minor node for IGD or AGP device */
1799 	status = ddi_create_minor_node(softc->devi, AGPMASTER_NAME,
1800 		    S_IFCHR, INST2NODE2(instance), DDI_NT_AGP_MASTER, 0);
1801 
1802 	if (status != DDI_SUCCESS) {
1803 		cmn_err(CE_WARN,
1804 		    "agp_master_init: create agpmaster node failed");
1805 		agp_master_end(agp_master);
1806 		return (-1);
1807 	}
1808 
1809 	return (0);
1810 }
1811 
1812 /*
1813  * Minor node is not removed here, since vgatext_detach is responsible
1814  * for removing all nodes.
1815  */
1816 static void
1817 agp_master_end(agp_master_softc_t *master_softc)
1818 {
1819 	ASSERT(master_softc);
1820 
1821 	/* intel integrated device */
1822 	if (IS_IGD(master_softc)) {
1823 		if (master_softc->agpm_data.agpm_gtt.gtt_mmio_handle != NULL) {
1824 			ddi_regs_map_free(
1825 			    &master_softc->agpm_data.agpm_gtt.gtt_mmio_handle);
1826 		}
1827 	}
1828 	if (master_softc->agpm_acc_hdl != NULL) {
1829 		pci_config_teardown(&master_softc->agpm_acc_hdl);
1830 	}
1831 
1832 	bzero(master_softc, sizeof (agp_master_softc_t));
1833 	return;
1834 
1835 }
1836 
1837 /*
1838  * Please refer to GART and GTT entry format table in agpdefs.h for
1839  * intel GTT entry format.
1840  */
1841 static int
1842 phys2entry(uint32_t type, uint32_t physaddr, uint32_t *entry)
1843 {
1844 	uint32_t value;
1845 
1846 	switch (type) {
1847 	case AGP_PHYSICAL:
1848 	case AGP_NORMAL:
1849 		value = (physaddr & GTT_PTE_MASK) | GTT_PTE_VALID;
1850 		break;
1851 	default:
1852 		return (-1);
1853 	}
1854 
1855 	*entry = value;
1856 
1857 	return (0);
1858 }
1859 
1860 static int
1861 i8xx_add_to_gtt(gtt_impl_t *gtt, igd_gtt_seg_t seg)
1862 {
1863 	int i;
1864 	uint32_t *paddr;
1865 	uint32_t entry;
1866 	uint32_t maxpages;
1867 
1868 	maxpages = gtt->gtt_info.igd_apersize;
1869 	maxpages = GTT_MB_TO_PAGES(maxpages);
1870 
1871 	paddr = seg.igs_phyaddr;
1872 
1873 	/*
1874 	 * check if gtt max pages reached
1875 	 */
1876 	if ((seg.igs_pgstart + seg.igs_npage) > maxpages)
1877 		return (-1);
1878 
1879 	paddr = seg.igs_phyaddr;
1880 	for (i = seg.igs_pgstart; i < (seg.igs_pgstart + seg.igs_npage);
1881 	    i++, paddr++) {
1882 		if (phys2entry(seg.igs_type, *paddr, &entry))
1883 			return (-1);
1884 		ddi_put32(gtt->gtt_mmio_handle,
1885 		    (uint32_t *)(gtt->gtt_addr + i * sizeof (uint32_t)),
1886 		    entry);
1887 	}
1888 
1889 	return (0);
1890 }
1891 
1892 static void
1893 i8xx_remove_from_gtt(gtt_impl_t *gtt, igd_gtt_seg_t seg)
1894 {
1895 	int i;
1896 	uint32_t maxpages;
1897 
1898 	maxpages = gtt->gtt_info.igd_apersize;
1899 	maxpages = GTT_MB_TO_PAGES(maxpages);
1900 
1901 	/*
1902 	 * check if gtt max pages reached
1903 	 */
1904 	if ((seg.igs_pgstart + seg.igs_npage) > maxpages)
1905 		return;
1906 
1907 	for (i = seg.igs_pgstart; i < (seg.igs_pgstart + seg.igs_npage); i++) {
1908 		ddi_put32(gtt->gtt_mmio_handle,
1909 		    (uint32_t *)(gtt->gtt_addr +
1910 		    i * sizeof (uint32_t)),
1911 		    0);
1912 	}
1913 }
1914