xref: /titanic_44/usr/src/uts/intel/io/vgatext/vgatext.c (revision 89518a1cfe5021ecf5ad8d04c40f53cf947e95d9)
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, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
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 2005 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	DEV2INST(dev)		(getminor(dev) >> 1)
67 #define	INST2NODE1(inst)	((inst) << 1)
68 #define	INST2NODE2(inst)	(((inst) << 1) + 1)
69 
70 /* I don't know exactly where these should be defined, but this is a	*/
71 /* heck of a lot better than constants in the code.			*/
72 #define	TEXT_ROWS		25
73 #define	TEXT_COLS		80
74 
75 #define	VGA_BRIGHT_WHITE	0x0f
76 #define	VGA_BLACK		0x00
77 
78 #define	VGA_REG_ADDR		0x3c0
79 #define	VGA_REG_SIZE		0x20
80 
81 #define	VGA_MEM_ADDR		0xa0000
82 #define	VGA_MEM_SIZE		0x20000
83 
84 #define	VGA_MMAP_FB_BASE	VGA_MEM_ADDR
85 
86 static int vgatext_open(dev_t *, int, int, cred_t *);
87 static int vgatext_close(dev_t, int, int, cred_t *);
88 static int vgatext_ioctl(dev_t, int, intptr_t, int, cred_t *, int *);
89 static int vgatext_devmap(dev_t, devmap_cookie_t, offset_t, size_t,
90 			    size_t *, uint_t);
91 
92 static 	struct cb_ops cb_vgatext_ops = {
93 	vgatext_open,		/* cb_open */
94 	vgatext_close,		/* cb_close */
95 	nodev,			/* cb_strategy */
96 	nodev,			/* cb_print */
97 	nodev,			/* cb_dump */
98 	nodev,			/* cb_read */
99 	nodev,			/* cb_write */
100 	vgatext_ioctl,		/* cb_ioctl */
101 	vgatext_devmap,		/* cb_devmap */
102 	nodev,			/* cb_mmap */
103 	ddi_devmap_segmap,	/* cb_segmap */
104 	nochpoll,		/* cb_chpoll */
105 	ddi_prop_op,		/* cb_prop_op */
106 	0,			/* cb_stream */
107 	D_NEW | D_MTSAFE	/* cb_flag */
108 };
109 
110 
111 static int vgatext_info(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg,
112 		void **result);
113 static int vgatext_attach(dev_info_t *, ddi_attach_cmd_t);
114 static int vgatext_detach(dev_info_t *, ddi_detach_cmd_t);
115 
116 static struct vis_identifier text_ident = { "SUNWtext" };
117 
118 static struct dev_ops vgatext_ops = {
119 	DEVO_REV,		/* devo_rev */
120 	0,			/* devo_refcnt */
121 	vgatext_info,		/* devo_getinfo */
122 	nulldev,		/* devo_identify */
123 	nulldev,		/* devo_probe */
124 	vgatext_attach,		/* devo_attach */
125 	vgatext_detach,		/* devo_detach */
126 	nodev,			/* devo_reset */
127 	&cb_vgatext_ops,	/* devo_cb_ops */
128 	(struct bus_ops *)NULL,	/* devo_bus_ops */
129 	NULL			/* power */
130 };
131 
132 
133 /*
134  * agp support data structures
135  */
136 typedef struct gtt_impl {
137 	ddi_acc_handle_t	gtt_mmio_handle; /* mmaped graph registers */
138 	caddr_t			gtt_mmio_base; /* pointer to register base */
139 	caddr_t			gtt_addr; /* pointer to gtt */
140 	igd_info_t		gtt_info; /* for I8XX_GET_INFO ioctl */
141 } gtt_impl_t;
142 
143 typedef struct agp_master_softc {
144 	uint32_t		agpm_id; /* agp master device id */
145 	ddi_acc_handle_t	agpm_acc_hdl; /* agp master pci conf handle */
146 	int			agpm_dev_type; /* which agp device type */
147 	union {
148 		off_t		agpm_acaptr; /* AGP capability reg pointer */
149 		gtt_impl_t	agpm_gtt; /* for gtt table */
150 	} agpm_data;
151 } agp_master_softc_t;
152 
153 
154 
155 struct vgatext_softc {
156 	struct vgaregmap 	regs;
157 	struct vgaregmap 	fb;
158 	off_t			fb_size;
159 	int			fb_regno;
160 	dev_info_t		*devi;
161 	int			mode;	/* KD_TEXT or KD_GRAPHICS */
162 	caddr_t			text_base;	/* hardware text base */
163 	char			shadow[TEXT_ROWS*TEXT_COLS*2];
164 	caddr_t			current_base;	/* hardware or shadow */
165 	struct {
166 		boolean_t visible;
167 		int row;
168 		int col;
169 	}			cursor;
170 	struct vis_polledio	polledio;
171 	struct {
172 		unsigned char red;
173 		unsigned char green;
174 		unsigned char blue;
175 	}			colormap[VGA8_CMAP_ENTRIES];
176 	unsigned char attrib_palette[VGA_ATR_NUM_PLT];
177 	agp_master_softc_t	*agp_master; /* NULL mean not PCI, for AGP */
178 };
179 
180 static int vgatext_devinit(struct vgatext_softc *, struct vis_devinit *data);
181 static void	vgatext_cons_copy(struct vgatext_softc *,
182 			struct vis_conscopy *);
183 static void	vgatext_cons_display(struct vgatext_softc *,
184 			struct vis_consdisplay *);
185 static void	vgatext_cons_cursor(struct vgatext_softc *,
186 			struct vis_conscursor *);
187 static void	vgatext_polled_copy(struct vis_polledio_arg *,
188 			struct vis_conscopy *);
189 static void	vgatext_polled_display(struct vis_polledio_arg *,
190 			struct vis_consdisplay *);
191 static void	vgatext_polled_cursor(struct vis_polledio_arg *,
192 			struct vis_conscursor *);
193 static void	vgatext_init(struct vgatext_softc *);
194 static void	vgatext_set_text(struct vgatext_softc *);
195 #if	defined(USE_BORDERS)
196 static void	vgatext_init_graphics(struct vgatext_softc *);
197 #endif
198 static int vgatext_kdsetmode(struct vgatext_softc *softc, int mode);
199 static void vgatext_setfont(struct vgatext_softc *softc);
200 static void vgatext_get_cursor(struct vgatext_softc *softc,
201 		screen_pos_t *row, screen_pos_t *col);
202 static void vgatext_set_cursor(struct vgatext_softc *softc, int row, int col);
203 static void vgatext_hide_cursor(struct vgatext_softc *softc);
204 static void vgatext_save_colormap(struct vgatext_softc *softc);
205 static void vgatext_restore_colormap(struct vgatext_softc *softc);
206 static int vgatext_get_pci_reg_index(dev_info_t *const devi,
207 		unsigned long himask, unsigned long hival, unsigned long addr,
208 		off_t *offset);
209 static int vgatext_get_isa_reg_index(dev_info_t *const devi,
210 		unsigned long hival, unsigned long addr, off_t *offset);
211 /*
212  * agp support functions prototype
213  */
214 static off_t agp_master_cap_find(ddi_acc_handle_t);
215 static int detect_i8xx_device(agp_master_softc_t *);
216 static int detect_agp_devcice(agp_master_softc_t *);
217 static int agp_master_init(struct vgatext_softc *);
218 static void agp_master_end(agp_master_softc_t *);
219 static int phys2entry(uint32_t, uint32_t, uint32_t *);
220 static int i8xx_add_to_gtt(gtt_impl_t *, igd_gtt_seg_t);
221 static void i8xx_remove_from_gtt(gtt_impl_t *, igd_gtt_seg_t);
222 
223 static void	*vgatext_softc_head;
224 static char	vgatext_silent;
225 static char	happyface_boot;
226 
227 /* Loadable Driver stuff */
228 
229 static struct modldrv modldrv = {
230 	&mod_driverops,		/* Type of module.  This one is a driver */
231 	"VGA text driver v%I%",	/* Name of the module. */
232 	&vgatext_ops,		/* driver ops */
233 };
234 
235 static struct modlinkage modlinkage = {
236 	MODREV_1, (void *) &modldrv, NULL
237 };
238 
239 typedef enum pc_colors {
240 	pc_black	= 0,
241 	pc_blue		= 1,
242 	pc_green	= 2,
243 	pc_cyan		= 3,
244 	pc_red		= 4,
245 	pc_magenta	= 5,
246 	pc_brown	= 6,
247 	pc_white	= 7,
248 	pc_grey		= 8,
249 	pc_brt_blue	= 9,
250 	pc_brt_green	= 10,
251 	pc_brt_cyan	= 11,
252 	pc_brt_red	= 12,
253 	pc_brt_magenta	= 13,
254 	pc_yellow	= 14,
255 	pc_brt_white	= 15
256 } pc_colors_t;
257 
258 static const unsigned char solaris_color_to_pc_color[16] = {
259 	pc_brt_white,		/*  0 - brt_white	*/
260 	pc_black,		/*  1 - black		*/
261 	pc_blue,		/*  2 - blue		*/
262 	pc_green,		/*  3 - green		*/
263 	pc_cyan,		/*  4 - cyan		*/
264 	pc_red,			/*  5 - red		*/
265 	pc_magenta,		/*  6 - magenta		*/
266 	pc_brown,		/*  7 - brown		*/
267 	pc_white,		/*  8 - white		*/
268 	pc_grey,		/*  9 - gery		*/
269 	pc_brt_blue,		/* 10 - brt_blue	*/
270 	pc_brt_green,		/* 11 - brt_green	*/
271 	pc_brt_cyan,		/* 12 - brt_cyan	*/
272 	pc_brt_red,		/* 13 - brt_red		*/
273 	pc_brt_magenta,		/* 14 - brt_magenta	*/
274 	pc_yellow		/* 15 - yellow		*/
275 };
276 
277 static ddi_device_acc_attr_t i8xx_dev_access = {
278 	DDI_DEVICE_ATTR_V0,
279 	DDI_NEVERSWAP_ACC,
280 	DDI_STRICTORDER_ACC
281 };
282 
283 static ddi_device_acc_attr_t dev_attr = {
284 	DDI_DEVICE_ATTR_V0,
285 	DDI_NEVERSWAP_ACC,
286 	DDI_STRICTORDER_ACC,
287 };
288 
289 int
290 _init(void)
291 {
292 	int e;
293 
294 	if ((e = ddi_soft_state_init(&vgatext_softc_head,
295 		    sizeof (struct vgatext_softc), 1)) != 0) {
296 	    return (e);
297 	}
298 
299 	e = mod_install(&modlinkage);
300 
301 	if (e) {
302 	    ddi_soft_state_fini(&vgatext_softc_head);
303 	}
304 	return (e);
305 }
306 
307 int
308 _fini(void)
309 {
310 	int e;
311 
312 	if ((e = mod_remove(&modlinkage)) != 0)
313 	    return (e);
314 
315 	ddi_soft_state_fini(&vgatext_softc_head);
316 
317 	return (0);
318 }
319 
320 int
321 _info(struct modinfo *modinfop)
322 {
323 	return (mod_info(&modlinkage, modinfop));
324 }
325 
326 /* default structure for FBIOGATTR ioctl */
327 static struct fbgattr vgatext_attr =  {
328 /*	real_type	owner */
329 	FBTYPE_SUNFAST_COLOR, 0,
330 /* fbtype: type		h  w  depth cms  size */
331 	{ FBTYPE_SUNFAST_COLOR, TEXT_ROWS, TEXT_COLS, 1,    256,  0 },
332 /* fbsattr: flags emu_type	dev_specific */
333 	{ 0, FBTYPE_SUN4COLOR, { 0 } },
334 /*	emu_types */
335 	{ -1 }
336 };
337 
338 /*
339  * handy macros
340  */
341 
342 #define	getsoftc(instance) ((struct vgatext_softc *)	\
343 			ddi_get_soft_state(vgatext_softc_head, (instance)))
344 
345 static int
346 vgatext_attach(dev_info_t *devi, ddi_attach_cmd_t cmd)
347 {
348 	struct vgatext_softc *softc;
349 	int	unit = ddi_get_instance(devi);
350 	int	error;
351 	char	*parent_type = NULL;
352 	int	reg_rnumber;
353 	off_t	reg_offset;
354 	off_t	mem_offset;
355 	char	buf[80], *cons;
356 
357 
358 	switch (cmd) {
359 	case DDI_ATTACH:
360 	    break;
361 
362 	case DDI_RESUME:
363 	    return (DDI_SUCCESS);
364 	default:
365 	    return (DDI_FAILURE);
366 	}
367 
368 	/* DDI_ATTACH */
369 
370 	/* Allocate softc struct */
371 	if (ddi_soft_state_zalloc(vgatext_softc_head, unit) != DDI_SUCCESS) {
372 		return (DDI_FAILURE);
373 	}
374 	softc = getsoftc(unit);
375 
376 	/* link it in */
377 	softc->devi = devi;
378 	ddi_set_driver_private(devi, softc);
379 
380 	softc->polledio.arg = (struct vis_polledio_arg *)softc;
381 	softc->polledio.display = vgatext_polled_display;
382 	softc->polledio.copy = vgatext_polled_copy;
383 	softc->polledio.cursor = vgatext_polled_cursor;
384 
385 	error = ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_get_parent(devi),
386 		DDI_PROP_DONTPASS, "device_type", &parent_type);
387 	if (error != DDI_SUCCESS) {
388 		cmn_err(CE_WARN, MYNAME ": can't determine parent type.");
389 		goto fail;
390 	}
391 
392 #define	STREQ(a, b)	(strcmp((a), (b)) == 0)
393 	if (STREQ(parent_type, "isa") || STREQ(parent_type, "eisa")) {
394 		reg_rnumber = vgatext_get_isa_reg_index(devi, 1, VGA_REG_ADDR,
395 			&reg_offset);
396 		if (reg_rnumber < 0) {
397 			cmn_err(CE_WARN,
398 				MYNAME ": can't find reg entry for registers");
399 			goto fail;
400 		}
401 		softc->fb_regno = vgatext_get_isa_reg_index(devi, 0,
402 			VGA_MEM_ADDR, &mem_offset);
403 		if (softc->fb_regno < 0) {
404 			cmn_err(CE_WARN,
405 				MYNAME ": can't find reg entry for memory");
406 			goto fail;
407 		}
408 	} else if (STREQ(parent_type, "pci")) {
409 		reg_rnumber = vgatext_get_pci_reg_index(devi,
410 			PCI_REG_ADDR_M|PCI_REG_REL_M,
411 			PCI_ADDR_IO|PCI_RELOCAT_B, VGA_REG_ADDR,
412 			&reg_offset);
413 		if (reg_rnumber < 0) {
414 			cmn_err(CE_WARN,
415 				MYNAME ": can't find reg entry for registers");
416 			goto fail;
417 		}
418 		softc->fb_regno = vgatext_get_pci_reg_index(devi,
419 			PCI_REG_ADDR_M|PCI_REG_REL_M,
420 			PCI_ADDR_MEM32|PCI_RELOCAT_B, VGA_MEM_ADDR,
421 			&mem_offset);
422 		if (softc->fb_regno < 0) {
423 			cmn_err(CE_WARN,
424 				MYNAME ": can't find reg entry for memory");
425 			goto fail;
426 		}
427 		softc->agp_master = (agp_master_softc_t *)
428 		    kmem_zalloc(sizeof (agp_master_softc_t), KM_SLEEP);
429 	} else {
430 		cmn_err(CE_WARN, MYNAME ": unknown parent type \"%s\".",
431 			parent_type);
432 		goto fail;
433 	}
434 	ddi_prop_free(parent_type);
435 	parent_type = NULL;
436 
437 	error = ddi_regs_map_setup(devi, reg_rnumber,
438 		(caddr_t *)&softc->regs.addr, reg_offset, VGA_REG_SIZE,
439 		&dev_attr, &softc->regs.handle);
440 	if (error != DDI_SUCCESS)
441 		goto fail;
442 	softc->regs.mapped = B_TRUE;
443 
444 	softc->fb_size = VGA_MEM_SIZE;
445 
446 	error = ddi_regs_map_setup(devi, softc->fb_regno,
447 		(caddr_t *)&softc->fb.addr,
448 		mem_offset, softc->fb_size,
449 		&dev_attr, &softc->fb.handle);
450 	if (error != DDI_SUCCESS)
451 		goto fail;
452 	softc->fb.mapped = B_TRUE;
453 
454 	if (ddi_io_get8(softc->regs.handle,
455 	    softc->regs.addr + VGA_MISC_R) & VGA_MISC_IOA_SEL)
456 		softc->text_base = (caddr_t)softc->fb.addr + VGA_COLOR_BASE;
457 	else
458 		softc->text_base = (caddr_t)softc->fb.addr + VGA_MONO_BASE;
459 	softc->current_base = softc->text_base;
460 
461 	(void) sprintf(buf, "text-%d", unit);
462 	error = ddi_create_minor_node(devi, buf, S_IFCHR,
463 	    INST2NODE1(unit), DDI_NT_DISPLAY, NULL);
464 	if (error != DDI_SUCCESS)
465 		goto fail;
466 
467 	error = ddi_prop_create(makedevice(DDI_MAJOR_T_UNKNOWN, unit),
468 	    devi, DDI_PROP_CANSLEEP, DDI_KERNEL_IOCTL, NULL, 0);
469 	if (error != DDI_SUCCESS)
470 		goto fail;
471 
472 	if (ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(),
473 		DDI_PROP_DONTPASS, "console", &cons) == DDI_SUCCESS) {
474 		if (strcmp(cons, "graphics") == 0) {
475 			happyface_boot = 1;
476 			vgatext_silent = 1;
477 		}
478 		ddi_prop_free(cons);
479 	}
480 
481 	/* only do this if not in graphics mode */
482 	if (vgatext_silent == 0) {
483 		vgatext_init(softc);
484 		vgatext_save_colormap(softc);
485 	}
486 
487 	if (softc->agp_master != NULL) { /* is PCI */
488 		if (agp_master_init(softc) != 0) { /* unsuccessful */
489 			kmem_free(softc->agp_master,
490 			    sizeof (agp_master_softc_t));
491 			softc->agp_master = NULL;
492 
493 		}
494 	}
495 
496 	return (DDI_SUCCESS);
497 
498 fail:
499 	if (parent_type != NULL)
500 		ddi_prop_free(parent_type);
501 	(void) vgatext_detach(devi, DDI_DETACH);
502 	return (error);
503 }
504 
505 static int
506 vgatext_detach(dev_info_t *devi, ddi_detach_cmd_t cmd)
507 {
508 	int instance = ddi_get_instance(devi);
509 	struct vgatext_softc *softc = getsoftc(instance);
510 
511 
512 	switch (cmd) {
513 	case DDI_DETACH:
514 		if (softc->agp_master != NULL) { /* agp initiated */
515 			agp_master_end(softc->agp_master);
516 
517 			kmem_free(softc->agp_master,
518 			    sizeof (agp_master_softc_t));
519 			softc->agp_master = NULL;
520 
521 		}
522 
523 		if (softc->fb.mapped)
524 			ddi_regs_map_free(&softc->fb.handle);
525 		if (softc->regs.mapped)
526 			ddi_regs_map_free(&softc->regs.handle);
527 		ddi_remove_minor_node(devi, NULL);
528 		(void) ddi_soft_state_free(vgatext_softc_head, instance);
529 		return (DDI_SUCCESS);
530 
531 	default:
532 		cmn_err(CE_WARN, "vgatext_detach: unknown cmd 0x%x\n", cmd);
533 		return (DDI_FAILURE);
534 	}
535 }
536 
537 /*ARGSUSED*/
538 static int
539 vgatext_info(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, void **result)
540 {
541 	dev_t dev;
542 	int error;
543 	int instance;
544 	struct vgatext_softc *softc;
545 
546 	error = DDI_SUCCESS;
547 
548 	dev = (dev_t)arg;
549 	instance = DEV2INST(dev);
550 	softc = getsoftc(instance);
551 
552 	switch (infocmd) {
553 	case DDI_INFO_DEVT2DEVINFO:
554 		if (softc == NULL || softc->devi == NULL) {
555 			error = DDI_FAILURE;
556 		} else {
557 			*result = (void *) softc->devi;
558 			error = DDI_SUCCESS;
559 		}
560 		break;
561 	case DDI_INFO_DEVT2INSTANCE:
562 		*result = (void *)(uintptr_t)instance;
563 		error = DDI_SUCCESS;
564 		break;
565 	default:
566 		error = DDI_FAILURE;
567 		break;
568 	}
569 	return (error);
570 }
571 
572 
573 /*ARGSUSED*/
574 static int
575 vgatext_open(dev_t *devp, int flag, int otyp, cred_t *cred)
576 {
577 	struct vgatext_softc *softc = getsoftc(DEV2INST(*devp));
578 
579 	if (softc == NULL || otyp == OTYP_BLK)
580 		return (ENXIO);
581 
582 	return (0);
583 }
584 
585 /*ARGSUSED*/
586 static int
587 vgatext_close(dev_t devp, int flag, int otyp, cred_t *cred)
588 {
589 	return (0);
590 }
591 
592 /*ARGSUSED*/
593 static int
594 vgatext_ioctl(
595     dev_t dev,
596     int cmd,
597     intptr_t data,
598     int mode,
599     cred_t *cred,
600     int *rval)
601 {
602 	struct vgatext_softc *softc = getsoftc(DEV2INST(dev));
603 	static char kernel_only[] = "vgatext_ioctl: %s is a kernel only ioctl";
604 	int err;
605 	int kd_mode;
606 
607 	switch (cmd) {
608 	case KDSETMODE:
609 		return (vgatext_kdsetmode(softc, (int)data));
610 
611 	case KDGETMODE:
612 		kd_mode = softc->mode;
613 		if (ddi_copyout(&kd_mode, (void *)data, sizeof (int), mode))
614 			return (EFAULT);
615 		break;
616 
617 	case VIS_GETIDENTIFIER:
618 		if (ddi_copyout(&text_ident, (void *)data,
619 		    sizeof (struct vis_identifier), mode))
620 			return (EFAULT);
621 		break;
622 
623 	case VIS_DEVINIT:
624 
625 	    if (!(mode & FKIOCTL)) {
626 		    cmn_err(CE_CONT, kernel_only, "VIS_DEVINIT");
627 		    return (ENXIO);
628 	    }
629 
630 	    err = vgatext_devinit(softc, (struct vis_devinit *)data);
631 	    if (err != 0) {
632 		    cmn_err(CE_WARN,
633 			"vgatext_ioctl:  could not initialize console");
634 		    return (err);
635 	    }
636 	    break;
637 
638 	case VIS_CONSCOPY:	/* move */
639 	{
640 	    struct vis_conscopy pma;
641 
642 	    if (ddi_copyin((void *)data, &pma,
643 		sizeof (struct vis_conscopy), mode))
644 		    return (EFAULT);
645 
646 	    vgatext_cons_copy(softc, &pma);
647 	    break;
648 	}
649 
650 	case VIS_CONSDISPLAY:	/* display */
651 	{
652 	    struct vis_consdisplay display_request;
653 
654 	    if (ddi_copyin((void *)data, &display_request,
655 		sizeof (display_request), mode))
656 		    return (EFAULT);
657 
658 	    vgatext_cons_display(softc, &display_request);
659 	    break;
660 	}
661 
662 	case VIS_CONSCURSOR:
663 	{
664 	    struct vis_conscursor cursor_request;
665 
666 	    if (ddi_copyin((void *)data, &cursor_request,
667 		sizeof (cursor_request), mode))
668 		    return (EFAULT);
669 
670 	    vgatext_cons_cursor(softc, &cursor_request);
671 
672 	    if (cursor_request.action == VIS_GET_CURSOR &&
673 		ddi_copyout(&cursor_request, (void *)data,
674 		sizeof (cursor_request), mode))
675 		    return (EFAULT);
676 	    break;
677 	}
678 
679 	case VIS_GETCMAP:
680 	case VIS_PUTCMAP:
681 	case FBIOPUTCMAP:
682 	case FBIOGETCMAP:
683 		/*
684 		 * At the moment, text mode is not considered to have
685 		 * a color map.
686 		 */
687 		return (EINVAL);
688 
689 	case FBIOGATTR:
690 		if (copyout(&vgatext_attr, (void *)data,
691 		    sizeof (struct fbgattr)))
692 			return (EFAULT);
693 		break;
694 
695 	case FBIOGTYPE:
696 		if (copyout(&vgatext_attr.fbtype, (void *)data,
697 		    sizeof (struct fbtype)))
698 			return (EFAULT);
699 		break;
700 
701 #if 0
702 	case GLY_LD_GLYPH:
703 	{
704 		temstat_t	*ap;
705 		da_t	da;
706 		struct glyph	g;
707 		int	size;
708 		uchar_t	*c;
709 
710 		if (ddi_copyin(arg, &g, sizeof (g), flag))
711 			return (EFAULT);
712 
713 		size = g.width * g.height;
714 		c = kmem_alloc(size, KM_SLEEP);
715 
716 		if (ddi_copyin(g.raster, c, size, flag)) {
717 			kmem_free(c, size);
718 			return (EFAULT);
719 		}
720 		ap = (temstat_t *)something;
721 		da.data = c;
722 		da.width = g.width;
723 		da.height = g.height;
724 		da.col = g.x_dest;
725 		da.row = g.y_dest;
726 		ap->a_fp.f_ad_display(ap->a_private, &da);
727 		kmem_free(c, size);
728 		return (0);
729 	}
730 #endif
731 	case DEVICE_DETECT:
732 	{
733 		agp_master_softc_t *agp_master;
734 
735 		if (!(mode & FKIOCTL)) {
736 			cmn_err(CE_CONT, kernel_only, "DEVICE_DETECT");
737 			return (ENXIO);
738 		}
739 		agp_master = softc->agp_master;
740 		ASSERT(agp_master);
741 
742 		if (!agp_master)
743 			return (EINVAL);
744 
745 		if (ddi_copyout(&agp_master->agpm_dev_type,
746 		    (void *)data, sizeof (int), mode))
747 			return (EFAULT);
748 		break;
749 	}
750 	case I8XX_GET_INFO:
751 	{
752 		agp_master_softc_t *agp_master;
753 
754 		if (!(mode & FKIOCTL)) {
755 			cmn_err(CE_CONT, kernel_only, "I8XX_GET_INFO");
756 			return (ENXIO);
757 		}
758 		agp_master = softc->agp_master;
759 		ASSERT(agp_master);
760 
761 		if (!agp_master)
762 			return (EINVAL);
763 		ASSERT((agp_master->agpm_dev_type == DEVICE_IS_I810) ||
764 		    (agp_master->agpm_dev_type == DEVICE_IS_I830));
765 
766 		if ((agp_master->agpm_dev_type != DEVICE_IS_I810) &&
767 		    (agp_master->agpm_dev_type != DEVICE_IS_I830))
768 			return (EINVAL);
769 
770 		if (ddi_copyout(&agp_master->agpm_data.agpm_gtt.gtt_info,
771 		    (void *)data,
772 			sizeof (igd_info_t), mode))
773 			return (EFAULT);
774 		break;
775 	}
776 	case I810_SET_GTT_BASE:
777 	{
778 		uint32_t base;
779 		uint32_t addr;
780 		agp_master_softc_t *agp_master;
781 
782 		if (!(mode & FKIOCTL)) {
783 			cmn_err(CE_CONT, kernel_only, "I8XX_SET_GTT_ADDR");
784 			return (ENXIO);
785 		}
786 		agp_master = softc->agp_master;
787 		ASSERT(agp_master);
788 		if (!agp_master)
789 			return (EINVAL);
790 		ASSERT(agp_master->agpm_dev_type == DEVICE_IS_I810);
791 		if (agp_master->agpm_dev_type != DEVICE_IS_I810)
792 			return (EINVAL);
793 
794 		if (ddi_copyin((void *)data, &base, sizeof (uint32_t), mode))
795 			return (EFAULT);
796 
797 		/* enables page table */
798 		addr = (base & GTT_BASE_MASK) | GTT_TABLE_VALID;
799 
800 		ddi_put32(agp_master->agpm_data.agpm_gtt.gtt_mmio_handle,
801 		    (uint32_t *)(agp_master->agpm_data.agpm_gtt.gtt_mmio_base +
802 		    I8XX_PGTBL_CTL),
803 		    addr);
804 		break;
805 	}
806 	case I8XX_ADD2GTT:
807 	{
808 		igd_gtt_seg_t seg;
809 		agp_master_softc_t *agp_master;
810 
811 		if (!(mode & FKIOCTL)) {
812 			cmn_err(CE_CONT, kernel_only, "I8XX_ADD2GTT");
813 			return (ENXIO);
814 		}
815 		agp_master = softc->agp_master;
816 		ASSERT(agp_master);
817 		if (!agp_master)
818 			return (EINVAL);
819 		ASSERT((agp_master->agpm_dev_type == DEVICE_IS_I810) ||
820 		    (agp_master->agpm_dev_type == DEVICE_IS_I830));
821 
822 		if ((agp_master->agpm_dev_type != DEVICE_IS_I810) &&
823 		    (agp_master->agpm_dev_type != DEVICE_IS_I830))
824 			return (EINVAL);
825 
826 		if (ddi_copyin((void *)data, &seg,
827 		    sizeof (igd_gtt_seg_t), mode))
828 			return (EFAULT);
829 
830 		if (i8xx_add_to_gtt(&agp_master->agpm_data.agpm_gtt, seg))
831 			return (EINVAL);
832 		break;
833 	}
834 	case I8XX_REM_GTT:
835 	{
836 		igd_gtt_seg_t seg;
837 		agp_master_softc_t *agp_master;
838 
839 		if (!(mode & FKIOCTL)) {
840 			cmn_err(CE_CONT, kernel_only, "I8XX_REM_GTT");
841 			return (ENXIO);
842 		}
843 		agp_master = softc->agp_master;
844 		ASSERT(agp_master);
845 		if (!agp_master)
846 			return (EINVAL);
847 		ASSERT((agp_master->agpm_dev_type == DEVICE_IS_I810) ||
848 		    (agp_master->agpm_dev_type == DEVICE_IS_I830));
849 
850 		if ((agp_master->agpm_dev_type != DEVICE_IS_I810) &&
851 		    (agp_master->agpm_dev_type != DEVICE_IS_I830))
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((agp_master->agpm_dev_type == DEVICE_IS_I810) ||
874 		    (agp_master->agpm_dev_type == DEVICE_IS_I830));
875 
876 		if ((agp_master->agpm_dev_type != DEVICE_IS_I810) &&
877 		    (agp_master->agpm_dev_type != DEVICE_IS_I830))
878 			return (EINVAL);
879 
880 		if (agp_master->agpm_dev_type == DEVICE_IS_I810)
881 			ddi_put32(
882 			    agp_master->agpm_data.agpm_gtt.gtt_mmio_handle,
883 			    (uint32_t *)
884 			    (agp_master->agpm_data.agpm_gtt.gtt_mmio_base +
885 			    I8XX_PGTBL_CTL),
886 			    0);
887 		/*
888 		 * may clear all gtt entries here for i830,
889 		 * but may not be necessary
890 		 */
891 		break;
892 	}
893 	case AGP_MASTER_GETINFO:
894 	{
895 		agp_info_t info;
896 		uint32_t value;
897 		off_t cap;
898 		agp_master_softc_t *agp_master;
899 
900 		if (!(mode & FKIOCTL)) {
901 			cmn_err(CE_CONT, kernel_only, "AGP_MASTER_GETINFO");
902 			return (ENXIO);
903 		}
904 		agp_master = softc->agp_master;
905 		ASSERT(agp_master);
906 		if (!agp_master)
907 			return (EINVAL);
908 		ASSERT(agp_master->agpm_dev_type == DEVICE_IS_AGP);
909 		if (agp_master->agpm_dev_type != DEVICE_IS_AGP)
910 			return (EINVAL);
911 
912 		ASSERT(agp_master->agpm_data.agpm_acaptr);
913 		if (agp_master->agpm_data.agpm_acaptr == 0)
914 			return (EINVAL);
915 
916 		cap = agp_master->agpm_data.agpm_acaptr;
917 		value = pci_config_get32(agp_master->agpm_acc_hdl, cap);
918 		info.agpi_version.agpv_major = (uint16_t)((value >> 20) & 0xf);
919 		info.agpi_version.agpv_minor = (uint16_t)((value >> 16) & 0xf);
920 		info.agpi_devid = agp_master->agpm_id;
921 		info.agpi_mode = pci_config_get32(
922 		    agp_master->agpm_acc_hdl, cap + AGP_CONF_STATUS);
923 
924 		if (ddi_copyout(&info, (void *)data,
925 		    sizeof (agp_info_t), mode))
926 			return (EFAULT);
927 		break;
928 	}
929 	case AGP_MASTER_SETCMD:
930 	{
931 		uint32_t command;
932 		agp_master_softc_t *agp_master;
933 
934 		if (!(mode & FKIOCTL)) {
935 			cmn_err(CE_CONT, kernel_only, "AGP_MASTER_SETCMD");
936 			return (ENXIO);
937 		}
938 		agp_master = softc->agp_master;
939 		ASSERT(agp_master);
940 		if (!agp_master)
941 			return (EINVAL);
942 		ASSERT(agp_master->agpm_dev_type == DEVICE_IS_AGP);
943 		if (agp_master->agpm_dev_type != DEVICE_IS_AGP)
944 			return (EINVAL);
945 
946 		ASSERT(agp_master->agpm_data.agpm_acaptr);
947 		if (agp_master->agpm_data.agpm_acaptr == 0)
948 			return (EINVAL);
949 
950 		if (ddi_copyin((void *)data, &command,
951 		    sizeof (uint32_t), mode))
952 			return (EFAULT);
953 
954 		pci_config_put32(agp_master->agpm_acc_hdl,
955 		    agp_master->agpm_data.agpm_acaptr + AGP_CONF_COMMAND,
956 		    command);
957 		break;
958 
959 	}
960 	default:
961 		return (ENXIO);
962 	}
963 	return (0);
964 }
965 
966 static int
967 vgatext_kdsetmode(struct vgatext_softc *softc, int mode)
968 {
969 	int i;
970 
971 	if (mode == softc->mode)
972 		return (0);
973 
974 	switch (mode) {
975 	case KD_TEXT:
976 		vgatext_init(softc);
977 		for (i = 0; i < sizeof (softc->shadow); i++) {
978 			softc->text_base[i] = softc->shadow[i];
979 		}
980 		softc->current_base = softc->text_base;
981 		if (softc->cursor.visible) {
982 			vgatext_set_cursor(softc,
983 				softc->cursor.row, softc->cursor.col);
984 		}
985 		vgatext_restore_colormap(softc);
986 		break;
987 
988 	case KD_GRAPHICS:
989 		if (vgatext_silent == 1) {
990 			extern void progressbar_stop(void);
991 
992 			vgatext_silent = 0;
993 			progressbar_stop();
994 		}
995 		for (i = 0; i < sizeof (softc->shadow); i++) {
996 			softc->shadow[i] = softc->text_base[i];
997 		}
998 		softc->current_base = softc->shadow;
999 #if	defined(USE_BORDERS)
1000 		vgatext_init_graphics(softc);
1001 #endif
1002 		break;
1003 
1004 	default:
1005 		return (EINVAL);
1006 	}
1007 	softc->mode = mode;
1008 	return (0);
1009 }
1010 
1011 /*ARGSUSED*/
1012 static int
1013 vgatext_devmap(dev_t dev, devmap_cookie_t dhp, offset_t off, size_t len,
1014 		size_t *maplen, uint_t model)
1015 {
1016 	struct vgatext_softc *softc;
1017 	int err;
1018 	size_t length;
1019 
1020 
1021 	softc = getsoftc(DEV2INST(dev));
1022 	if (softc == NULL) {
1023 		cmn_err(CE_WARN, "vgatext: Can't find softstate");
1024 		return (-1);
1025 	}
1026 
1027 	if (!(off >= VGA_MMAP_FB_BASE &&
1028 		off < VGA_MMAP_FB_BASE + softc->fb_size)) {
1029 		cmn_err(CE_WARN, "vgatext: Can't map offset 0x%llx", off);
1030 		return (-1);
1031 	}
1032 
1033 	if (off + len > VGA_MMAP_FB_BASE + softc->fb_size)
1034 		length = VGA_MMAP_FB_BASE + softc->fb_size - off;
1035 	else
1036 		length = len;
1037 
1038 	if ((err = devmap_devmem_setup(dhp, softc->devi, NULL, softc->fb_regno,
1039 					off - VGA_MMAP_FB_BASE,
1040 					length, PROT_ALL, 0, &dev_attr)) < 0) {
1041 		return (err);
1042 	}
1043 
1044 
1045 	*maplen = length;
1046 	return (0);
1047 }
1048 
1049 
1050 static int
1051 vgatext_devinit(struct vgatext_softc *softc, struct vis_devinit *data)
1052 {
1053 	/* initialize console instance */
1054 	data->version = VIS_CONS_REV;
1055 	data->width = TEXT_COLS;
1056 	data->height = TEXT_ROWS;
1057 	data->linebytes = TEXT_COLS;
1058 	data->depth = 4;
1059 	data->mode = VIS_TEXT;
1060 	data->polledio = &softc->polledio;
1061 
1062 	return (0);
1063 }
1064 
1065 /*
1066  * display a string on the screen at (row, col)
1067  *	 assume it has been cropped to fit.
1068  */
1069 
1070 static void
1071 vgatext_cons_display(struct vgatext_softc *softc, struct vis_consdisplay *da)
1072 {
1073 	unsigned char	*string;
1074 	int	i;
1075 	unsigned char	attr;
1076 	struct cgatext {
1077 		unsigned char ch;
1078 		unsigned char attr;
1079 	};
1080 	struct cgatext *addr;
1081 
1082 	if (vgatext_silent)
1083 		return;
1084 	/*
1085 	 * Sanity checks.  This is a last-ditch effort to avoid damage
1086 	 * from brokenness or maliciousness above.
1087 	 */
1088 	if (da->row < 0 || da->row >= TEXT_ROWS ||
1089 	    da->col < 0 || da->col >= TEXT_COLS ||
1090 	    da->col + da->width > TEXT_COLS)
1091 		return;
1092 
1093 	/*
1094 	 * To be fully general, we should copyin the data.  This is not
1095 	 * really relevant for this text-only driver, but a graphical driver
1096 	 * should support these ioctls from userland to enable simple
1097 	 * system startup graphics.
1098 	 */
1099 	attr = (solaris_color_to_pc_color[da->bg_color & 0xf] << 4)
1100 		| solaris_color_to_pc_color[da->fg_color & 0xf];
1101 	string = da->data;
1102 	addr = (struct cgatext *)softc->current_base
1103 		+  (da->row * TEXT_COLS + da->col);
1104 	for (i = 0; i < da->width; i++) {
1105 		addr->ch = string[i];
1106 		addr->attr = attr;
1107 		addr++;
1108 	}
1109 }
1110 
1111 static void
1112 vgatext_polled_display(
1113 	struct vis_polledio_arg *arg,
1114 	struct vis_consdisplay *da)
1115 {
1116 	vgatext_cons_display((struct vgatext_softc *)arg, da);
1117 }
1118 
1119 /*
1120  * screen-to-screen copy
1121  */
1122 
1123 static void
1124 vgatext_cons_copy(struct vgatext_softc *softc, struct vis_conscopy *ma)
1125 {
1126 	unsigned short	*from;
1127 	unsigned short	*to;
1128 	int		cnt;
1129 	screen_size_t chars_per_row;
1130 	unsigned short	*to_row_start;
1131 	unsigned short	*from_row_start;
1132 	screen_size_t	rows_to_move;
1133 	unsigned short	*base;
1134 
1135 	if (vgatext_silent)
1136 		return;
1137 
1138 	/*
1139 	 * Sanity checks.  Note that this is a last-ditch effort to avoid
1140 	 * damage caused by broken-ness or maliciousness above.
1141 	 */
1142 	if (ma->s_col < 0 || ma->s_col >= TEXT_COLS ||
1143 	    ma->s_row < 0 || ma->s_row >= TEXT_ROWS ||
1144 	    ma->e_col < 0 || ma->e_col >= TEXT_COLS ||
1145 	    ma->e_row < 0 || ma->e_row >= TEXT_ROWS ||
1146 	    ma->t_col < 0 || ma->t_col >= TEXT_COLS ||
1147 	    ma->t_row < 0 || ma->t_row >= TEXT_ROWS ||
1148 	    ma->s_col > ma->e_col ||
1149 	    ma->s_row > ma->e_row)
1150 		return;
1151 
1152 	/*
1153 	 * Remember we're going to copy shorts because each
1154 	 * character/attribute pair is 16 bits.
1155 	 */
1156 	chars_per_row = ma->e_col - ma->s_col + 1;
1157 	rows_to_move = ma->e_row - ma->s_row + 1;
1158 
1159 	/* More sanity checks. */
1160 	if (ma->t_row + rows_to_move > TEXT_ROWS ||
1161 	    ma->t_col + chars_per_row > TEXT_COLS)
1162 		return;
1163 
1164 	base = (unsigned short *)softc->current_base;
1165 
1166 	to_row_start = base + ((ma->t_row * TEXT_COLS) + ma->t_col);
1167 	from_row_start = base + ((ma->s_row * TEXT_COLS) + ma->s_col);
1168 
1169 	if (to_row_start < from_row_start) {
1170 		while (rows_to_move-- > 0) {
1171 			to = to_row_start;
1172 			from = from_row_start;
1173 			to_row_start += TEXT_COLS;
1174 			from_row_start += TEXT_COLS;
1175 			for (cnt = chars_per_row; cnt-- > 0; )
1176 				*to++ = *from++;
1177 		}
1178 	} else {
1179 		/*
1180 		 * Offset to the end of the region and copy backwards.
1181 		 */
1182 		cnt = rows_to_move * TEXT_COLS + chars_per_row;
1183 		to_row_start += cnt;
1184 		from_row_start += cnt;
1185 
1186 		while (rows_to_move-- > 0) {
1187 			to_row_start -= TEXT_COLS;
1188 			from_row_start -= TEXT_COLS;
1189 			to = to_row_start;
1190 			from = from_row_start;
1191 			for (cnt = chars_per_row; cnt-- > 0; )
1192 				*--to = *--from;
1193 		}
1194 	}
1195 }
1196 
1197 static void
1198 vgatext_polled_copy(
1199 	struct vis_polledio_arg *arg,
1200 	struct vis_conscopy *ca)
1201 {
1202 	vgatext_cons_copy((struct vgatext_softc *)arg, ca);
1203 }
1204 
1205 
1206 static void
1207 vgatext_cons_cursor(struct vgatext_softc *softc, struct vis_conscursor *ca)
1208 {
1209 	if (vgatext_silent)
1210 		return;
1211 
1212 	switch (ca->action) {
1213 	case VIS_HIDE_CURSOR:
1214 		softc->cursor.visible = B_FALSE;
1215 		if (softc->current_base == softc->text_base)
1216 			vgatext_hide_cursor(softc);
1217 		break;
1218 	case VIS_DISPLAY_CURSOR:
1219 		/*
1220 		 * Sanity check.  This is a last-ditch effort to avoid
1221 		 * damage from brokenness or maliciousness above.
1222 		 */
1223 		if (ca->col < 0 || ca->col >= TEXT_COLS ||
1224 		    ca->row < 0 || ca->row >= TEXT_ROWS)
1225 			return;
1226 
1227 		softc->cursor.visible = B_TRUE;
1228 		softc->cursor.col = ca->col;
1229 		softc->cursor.row = ca->row;
1230 		if (softc->current_base == softc->text_base)
1231 			vgatext_set_cursor(softc, ca->row, ca->col);
1232 		break;
1233 	case VIS_GET_CURSOR:
1234 		if (softc->current_base == softc->text_base) {
1235 			vgatext_get_cursor(softc, &ca->row, &ca->col);
1236 		}
1237 		break;
1238 	}
1239 }
1240 
1241 static void
1242 vgatext_polled_cursor(
1243 	struct vis_polledio_arg *arg,
1244 	struct vis_conscursor *ca)
1245 {
1246 	vgatext_cons_cursor((struct vgatext_softc *)arg, ca);
1247 }
1248 
1249 
1250 
1251 /*ARGSUSED*/
1252 static void
1253 vgatext_hide_cursor(struct vgatext_softc *softc)
1254 {
1255 	/* Nothing at present */
1256 }
1257 
1258 static void
1259 vgatext_set_cursor(struct vgatext_softc *softc, int row, int col)
1260 {
1261 	short	addr;
1262 
1263 	if (vgatext_silent)
1264 		return;
1265 
1266 	addr = row * TEXT_COLS + col;
1267 
1268 	vga_set_crtc(&softc->regs, VGA_CRTC_CLAH, addr >> 8);
1269 	vga_set_crtc(&softc->regs, VGA_CRTC_CLAL, addr & 0xff);
1270 }
1271 
1272 static int vga_row, vga_col;
1273 
1274 static void
1275 vgatext_get_cursor(struct vgatext_softc *softc,
1276     screen_pos_t *row, screen_pos_t *col)
1277 {
1278 	short   addr;
1279 
1280 	addr = (vga_get_crtc(&softc->regs, VGA_CRTC_CLAH) << 8) +
1281 	    vga_get_crtc(&softc->regs, VGA_CRTC_CLAL);
1282 
1283 	vga_row = *row = addr / TEXT_COLS;
1284 	vga_col = *col = addr % TEXT_COLS;
1285 }
1286 
1287 /*
1288  * This code is experimental. It's only enabled if console is
1289  * set to graphics, a preliminary implementation of happyface boot.
1290  */
1291 static void
1292 vgatext_set_text(struct vgatext_softc *softc)
1293 {
1294 	int i;
1295 
1296 	if (happyface_boot == 0)
1297 		return;
1298 
1299 	/* we are in graphics mode, set to text 80X25 mode */
1300 
1301 	/* set misc registers */
1302 	vga_set_reg(&softc->regs, VGA_MISC_W, VGA_MISC_TEXT);
1303 
1304 	/* set sequencer registers */
1305 	vga_set_seq(&softc->regs, VGA_SEQ_RST_SYN,
1306 		(vga_get_seq(&softc->regs, VGA_SEQ_RST_SYN) &
1307 		~VGA_SEQ_RST_SYN_NO_SYNC_RESET));
1308 	for (i = 1; i < NUM_SEQ_REG; i++) {
1309 		vga_set_seq(&softc->regs, i, VGA_SEQ_TEXT[i]);
1310 	}
1311 	vga_set_seq(&softc->regs, VGA_SEQ_RST_SYN,
1312 		(vga_get_seq(&softc->regs, VGA_SEQ_RST_SYN) |
1313 		VGA_SEQ_RST_SYN_NO_ASYNC_RESET |
1314 		VGA_SEQ_RST_SYN_NO_SYNC_RESET));
1315 
1316 	/* set crt controller registers */
1317 	vga_set_crtc(&softc->regs, VGA_CRTC_VRE,
1318 		(vga_get_crtc(&softc->regs, VGA_CRTC_VRE) &
1319 		~VGA_CRTC_VRE_LOCK));
1320 	for (i = 0; i < NUM_CRTC_REG; i++) {
1321 		vga_set_crtc(&softc->regs, i, VGA_CRTC_TEXT[i]);
1322 	}
1323 
1324 	/* set graphics controller registers */
1325 	for (i = 0; i < NUM_GRC_REG; i++) {
1326 		vga_set_grc(&softc->regs, i, VGA_GRC_TEXT[i]);
1327 	}
1328 
1329 	/* set attribute registers */
1330 	for (i = 0; i < NUM_ATR_REG; i++) {
1331 		vga_set_atr(&softc->regs, i, VGA_ATR_TEXT[i]);
1332 	}
1333 
1334 	/* set palette */
1335 	for (i = 0; i < VGA_TEXT_CMAP_ENTRIES; i++) {
1336 		vga_put_cmap(&softc->regs, i, VGA_TEXT_PALETTES[i][0] << 2,
1337 			VGA_TEXT_PALETTES[i][1] << 2,
1338 			VGA_TEXT_PALETTES[i][2] << 2);
1339 	}
1340 	for (i = VGA_TEXT_CMAP_ENTRIES; i < VGA8_CMAP_ENTRIES; i++) {
1341 		vga_put_cmap(&softc->regs, i, 0, 0, 0);
1342 	}
1343 
1344 	vgatext_save_colormap(softc);
1345 }
1346 
1347 static void
1348 vgatext_init(struct vgatext_softc *softc)
1349 {
1350 	unsigned char atr_mode;
1351 
1352 	atr_mode = vga_get_atr(&softc->regs, VGA_ATR_MODE);
1353 	if (atr_mode & VGA_ATR_MODE_GRAPH)
1354 		vgatext_set_text(softc);
1355 	atr_mode = vga_get_atr(&softc->regs, VGA_ATR_MODE);
1356 	atr_mode &= ~VGA_ATR_MODE_BLINK;
1357 	atr_mode &= ~VGA_ATR_MODE_9WIDE;
1358 	vga_set_atr(&softc->regs, VGA_ATR_MODE, atr_mode);
1359 #if	defined(USE_BORDERS)
1360 	vga_set_atr(&softc->regs, VGA_ATR_BDR_CLR,
1361 		vga_get_atr(&softc->regs, VGA_BRIGHT_WHITE));
1362 #else
1363 	vga_set_atr(&softc->regs, VGA_ATR_BDR_CLR,
1364 		vga_get_atr(&softc->regs, VGA_BLACK));
1365 #endif
1366 	vgatext_setfont(softc);	/* need selectable font? */
1367 }
1368 
1369 #if	defined(USE_BORDERS)
1370 static void
1371 vgatext_init_graphics(struct vgatext_softc *softc)
1372 {
1373 	vga_set_atr(&softc->regs, VGA_ATR_BDR_CLR,
1374 		vga_get_atr(&softc->regs, VGA_BLACK));
1375 }
1376 #endif
1377 
1378 static char vga_fontslot = 0;
1379 
1380 static void
1381 vgatext_setfont(struct vgatext_softc *softc)
1382 {
1383 	static uchar_t fsreg[8] = {0x0, 0x30, 0x5, 0x35, 0xa, 0x3a, 0xf, 0x3f};
1384 
1385 	extern unsigned char *ENCODINGS[];
1386 	uchar_t *from;
1387 	uchar_t volatile *to;
1388 	int	i, j, s;
1389 	int	bpc, f_offset;
1390 
1391 	/* Sync-reset the sequencer registers */
1392 	vga_set_seq(&softc->regs, 0x00, 0x01);
1393 	/*
1394 	 *  enable write to plane2, since fonts
1395 	 * could only be loaded into plane2
1396 	 */
1397 	vga_set_seq(&softc->regs, 0x02, 0x04);
1398 	/*
1399 	 *  sequentially access data in the bit map being
1400 	 * selected by MapMask register (index 0x02)
1401 	 */
1402 	vga_set_seq(&softc->regs, 0x04, 0x07);
1403 	/* Sync-reset ended, and allow the sequencer to operate */
1404 	vga_set_seq(&softc->regs, 0x00, 0x03);
1405 
1406 	/*
1407 	 *  select plane 2 on Read Mode 0
1408 	 */
1409 	vga_set_grc(&softc->regs, 0x04, 0x02);
1410 	/*
1411 	 *  system addresses sequentially access data, follow
1412 	 * Memory Mode register bit 2 in the sequencer
1413 	 */
1414 	vga_set_grc(&softc->regs, 0x05, 0x00);
1415 	/*
1416 	 * set range of host memory addresses decoded by VGA
1417 	 * hardware -- A0000h-BFFFFh (128K region)
1418 	 */
1419 	vga_set_grc(&softc->regs, 0x06, 0x00);
1420 
1421 	/*
1422 	 * This assumes 8x16 characters, which yield the traditional 80x25
1423 	 * screen.  It really should support other character heights.
1424 	 */
1425 	bpc = 16;
1426 	s = vga_fontslot;
1427 	f_offset = s * 8 * 1024;
1428 	for (i = 0; i < 256; i++) {
1429 		from = ENCODINGS[i];
1430 		to = (unsigned char *)softc->fb.addr + f_offset + i * 0x20;
1431 		for (j = 0; j < bpc; j++)
1432 			*to++ = *from++;
1433 	}
1434 
1435 	/* Sync-reset the sequencer registers */
1436 	vga_set_seq(&softc->regs, 0x00, 0x01);
1437 	/* enable write to plane 0 and 1 */
1438 	vga_set_seq(&softc->regs, 0x02, 0x03);
1439 	/*
1440 	 * enable character map selection
1441 	 * and odd/even addressing
1442 	 */
1443 	vga_set_seq(&softc->regs, 0x04, 0x03);
1444 	/*
1445 	 * select font map
1446 	 */
1447 	vga_set_seq(&softc->regs, 0x03, fsreg[s]);
1448 	/* Sync-reset ended, and allow the sequencer to operate */
1449 	vga_set_seq(&softc->regs, 0x00, 0x03);
1450 
1451 	/* restore graphic registers */
1452 
1453 	/* select plane 0 */
1454 	vga_set_grc(&softc->regs, 0x04, 0x00);
1455 	/* enable odd/even addressing mode */
1456 	vga_set_grc(&softc->regs, 0x05, 0x10);
1457 	/*
1458 	 * range of host memory addresses decoded by VGA
1459 	 * hardware -- B8000h-BFFFFh (32K region)
1460 	 */
1461 	vga_set_grc(&softc->regs, 0x06, 0x0e);
1462 	/* enable all color plane */
1463 	vga_set_atr(&softc->regs, 0x12, 0x0f);
1464 
1465 }
1466 
1467 static void
1468 vgatext_save_colormap(struct vgatext_softc *softc)
1469 {
1470 	int i;
1471 
1472 	for (i = 0; i < VGA_ATR_NUM_PLT; i++) {
1473 		softc->attrib_palette[i] = vga_get_atr(&softc->regs, i);
1474 	}
1475 	for (i = 0; i < VGA8_CMAP_ENTRIES; i++) {
1476 		vga_get_cmap(&softc->regs, i,
1477 			&softc->colormap[i].red,
1478 			&softc->colormap[i].green,
1479 			&softc->colormap[i].blue);
1480 	}
1481 }
1482 
1483 static void
1484 vgatext_restore_colormap(struct vgatext_softc *softc)
1485 {
1486 	int i;
1487 
1488 	for (i = 0; i < VGA_ATR_NUM_PLT; i++) {
1489 		vga_set_atr(&softc->regs, i, softc->attrib_palette[i]);
1490 	}
1491 	for (i = 0; i < VGA8_CMAP_ENTRIES; i++) {
1492 		vga_put_cmap(&softc->regs, i,
1493 			softc->colormap[i].red,
1494 			softc->colormap[i].green,
1495 			softc->colormap[i].blue);
1496 	}
1497 }
1498 
1499 /*
1500  * search the entries of the "reg" property for one which has the desired
1501  * combination of phys_hi bits and contains the desired address.
1502  *
1503  * This version searches a PCI-style "reg" property.  It was prompted by
1504  * issues surrounding the presence or absence of an entry for the ROM:
1505  * (a) a transition problem with PowerPC Virtual Open Firmware
1506  * (b) uncertainty as to whether an entry will be included on a device
1507  *     with ROM support (and so an "active" ROM base address register),
1508  *     but no ROM actually installed.
1509  *
1510  * See the note below on vgatext_get_isa_reg_index for the reasons for
1511  * returning the offset.
1512  *
1513  * Note that this routine may not be fully general; it is intended for the
1514  * specific purpose of finding a couple of particular VGA reg entries and
1515  * may not be suitable for all reg-searching purposes.
1516  */
1517 static int
1518 vgatext_get_pci_reg_index(
1519 	dev_info_t *const devi,
1520 	unsigned long himask,
1521 	unsigned long hival,
1522 	unsigned long addr,
1523 	off_t *offset)
1524 {
1525 
1526 	int			length, index;
1527 	pci_regspec_t	*reg;
1528 
1529 	if (ddi_getlongprop(DDI_DEV_T_ANY, devi, DDI_PROP_DONTPASS,
1530 		"reg", (caddr_t)&reg, &length) != DDI_PROP_SUCCESS) {
1531 		return (-1);
1532 	}
1533 
1534 	for (index = 0; index < length / sizeof (pci_regspec_t); index++) {
1535 		if ((reg[index].pci_phys_hi & himask) != hival)
1536 			continue;
1537 		if (reg[index].pci_size_hi != 0)
1538 			continue;
1539 		if (reg[index].pci_phys_mid != 0)
1540 			continue;
1541 		if (reg[index].pci_phys_low > addr)
1542 			continue;
1543 		if (reg[index].pci_phys_low + reg[index].pci_size_low <= addr)
1544 			continue;
1545 
1546 		*offset = addr - reg[index].pci_phys_low;
1547 		kmem_free(reg, (size_t)length);
1548 		return (index);
1549 	}
1550 	kmem_free(reg, (size_t)length);
1551 
1552 	return (-1);
1553 }
1554 
1555 /*
1556  * search the entries of the "reg" property for one which has the desired
1557  * combination of phys_hi bits and contains the desired address.
1558  *
1559  * This version searches a ISA-style "reg" property.  It was prompted by
1560  * issues surrounding 8514/A support.  By IEEE 1275 compatibility conventions,
1561  * 8514/A registers should have been added after all standard VGA registers.
1562  * Unfortunately, the Solaris/Intel device configuration framework
1563  * (a) lists the 8514/A registers before the video memory, and then
1564  * (b) also sorts the entries so that I/O entries come before memory
1565  *     entries.
1566  *
1567  * It returns the "reg" index and offset into that register set.
1568  * The offset is needed because there exist (broken?) BIOSes that
1569  * report larger ranges enclosing the standard ranges.  One reports
1570  * 0x3bf for 0x21 instead of 0x3c0 for 0x20, for instance.  Using the
1571  * offset adjusts for this difference in the base of the register set.
1572  *
1573  * Note that this routine may not be fully general; it is intended for the
1574  * specific purpose of finding a couple of particular VGA reg entries and
1575  * may not be suitable for all reg-searching purposes.
1576  */
1577 static int
1578 vgatext_get_isa_reg_index(
1579 	dev_info_t *const devi,
1580 	unsigned long hival,
1581 	unsigned long addr,
1582 	off_t *offset)
1583 {
1584 
1585 	int		length, index;
1586 	struct regspec	*reg;
1587 
1588 	if (ddi_getlongprop(DDI_DEV_T_ANY, devi, DDI_PROP_DONTPASS,
1589 		"reg", (caddr_t)&reg, &length) != DDI_PROP_SUCCESS) {
1590 		return (-1);
1591 	}
1592 
1593 	for (index = 0; index < length / sizeof (struct regspec); index++) {
1594 		if (reg[index].regspec_bustype != hival)
1595 			continue;
1596 		if (reg[index].regspec_addr > addr)
1597 			continue;
1598 		if (reg[index].regspec_addr + reg[index].regspec_size <= addr)
1599 			continue;
1600 
1601 		*offset = addr - reg[index].regspec_addr;
1602 		kmem_free(reg, (size_t)length);
1603 		return (index);
1604 	}
1605 	kmem_free(reg, (size_t)length);
1606 
1607 	return (-1);
1608 }
1609 
1610 /*
1611  * If AGP cap pointer is successfully found, none-zero value is returned.
1612  * Otherwise 0 is returned.
1613  */
1614 static off_t
1615 agp_master_cap_find(ddi_acc_handle_t acc_handle)
1616 {
1617 	off_t		nextcap;
1618 	uint32_t	ncapid;
1619 	uint8_t		value;
1620 
1621 	/* check if this device supports capibility pointer */
1622 	value = (uint8_t)(pci_config_get16(acc_handle, PCI_CONF_STAT)
1623 			    & PCI_CONF_CAP_MASK);
1624 
1625 	if (!value)
1626 		return (0);
1627 	/* get the offset of the first capability pointer from CAPPTR */
1628 	nextcap = (off_t)(pci_config_get8(acc_handle, AGP_CONF_CAPPTR));
1629 
1630 	/* check AGP capability from the first capability pointer */
1631 	while (nextcap) {
1632 		ncapid = pci_config_get32(acc_handle, nextcap);
1633 		if ((ncapid & PCI_CONF_CAPID_MASK)
1634 		    == AGP_CAP_ID) /* find AGP cap */
1635 			break;
1636 
1637 		nextcap = (off_t)((ncapid & PCI_CONF_NCAPID_MASK) >> 8);
1638 	}
1639 
1640 	return (nextcap);
1641 
1642 }
1643 
1644 /*
1645  * If i8xx device is successfully detected, 0 is returned.
1646  * Otherwise -1 is returned.
1647  */
1648 static int
1649 detect_i8xx_device(agp_master_softc_t *master_softc)
1650 {
1651 
1652 	switch (master_softc->agpm_id) {
1653 	case INTEL_IGD_810:
1654 	case INTEL_IGD_810DC:
1655 	case INTEL_IGD_810E:
1656 	case INTEL_IGD_815:
1657 		master_softc->agpm_dev_type = DEVICE_IS_I810;
1658 		break;
1659 	case INTEL_IGD_830M:
1660 	case INTEL_IGD_845G:
1661 	case INTEL_IGD_855GM:
1662 	case INTEL_IGD_865G:
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 		status = ddi_regs_map_setup(devi, I8XX_MMIO_REGSET,
1727 		    &agp_master->agpm_data.agpm_gtt.gtt_mmio_base,
1728 		    0, 0, &i8xx_dev_access,
1729 		    &agp_master->agpm_data.agpm_gtt.gtt_mmio_handle);
1730 
1731 		if (status != DDI_SUCCESS) {
1732 			cmn_err(CE_WARN,
1733 			    "agp_master_init: ddi_regs_map_setup failed");
1734 			agp_master_end(agp_master);
1735 			return (-1);
1736 		}
1737 		/* get GTT range base offset */
1738 		agp_master->agpm_data.agpm_gtt.gtt_addr =
1739 		    agp_master->agpm_data.agpm_gtt.gtt_mmio_base +
1740 		    I8XX_PTE_OFFSET;
1741 		/* get graphics memory size */
1742 		status = ddi_dev_regsize(devi, I8XX_FB_REGSET,
1743 		    &reg_size);
1744 		/*
1745 		 * if memory size is smaller than a certain value, it means
1746 		 * the register set number for graphics memory range might
1747 		 * be wrong
1748 		 */
1749 		if (status != DDI_SUCCESS || reg_size < 0x400000) {
1750 			cmn_err(CE_WARN,
1751 			    "agp_master_init: ddi_dev_regsize error");
1752 			agp_master_end(agp_master);
1753 			return (-1);
1754 		}
1755 
1756 		agp_master->agpm_data.agpm_gtt.gtt_info.igd_apersize =
1757 		    BYTES2MB(reg_size);
1758 		value = pci_config_get32(agp_master->agpm_acc_hdl,
1759 		    I8XX_CONF_GMADR);
1760 		agp_master->agpm_data.agpm_gtt.gtt_info.igd_aperbase =
1761 		    value & GTT_BASE_MASK;
1762 		agp_master->agpm_data.agpm_gtt.gtt_info.igd_devid =
1763 		    agp_master->agpm_id;
1764 	} else if (detect_agp_devcice(agp_master)) {
1765 		/*
1766 		 * non IGD or AGP devices, not error
1767 		 */
1768 		agp_master_end(agp_master);
1769 		return (-1);
1770 	}
1771 
1772 	/* create extra minor node for IGD or AGP device */
1773 	status = ddi_create_minor_node(softc->devi, AGPMASTER_NAME,
1774 		    S_IFCHR, INST2NODE2(instance), DDI_NT_AGP_MASTER, 0);
1775 
1776 	if (status != DDI_SUCCESS) {
1777 		cmn_err(CE_WARN,
1778 		    "agp_master_init: create agpmaster node failed");
1779 		agp_master_end(agp_master);
1780 		return (-1);
1781 	}
1782 
1783 	return (0);
1784 }
1785 
1786 /*
1787  * Minor node is not removed here, since vgatext_detach is responsible
1788  * for removing all nodes.
1789  */
1790 static void
1791 agp_master_end(agp_master_softc_t *master_softc)
1792 {
1793 	ASSERT(master_softc);
1794 
1795 	/* intel integrated device */
1796 	if ((master_softc->agpm_dev_type == DEVICE_IS_I810) ||
1797 	    (master_softc->agpm_dev_type == DEVICE_IS_I830)) {
1798 		if (master_softc->agpm_data.agpm_gtt.gtt_mmio_handle != NULL) {
1799 			ddi_regs_map_free(
1800 			    &master_softc->agpm_data.agpm_gtt.gtt_mmio_handle);
1801 		}
1802 	}
1803 	if (master_softc->agpm_acc_hdl != NULL) {
1804 		pci_config_teardown(&master_softc->agpm_acc_hdl);
1805 	}
1806 
1807 	bzero(master_softc, sizeof (agp_master_softc_t));
1808 	return;
1809 
1810 }
1811 
1812 /*
1813  * Please refer to GART and GTT entry format table in agpdefs.h for
1814  * intel GTT entry format.
1815  */
1816 static int
1817 phys2entry(uint32_t type, uint32_t physaddr, uint32_t *entry)
1818 {
1819 	uint32_t value;
1820 
1821 	switch (type) {
1822 	case AGP_PHYSICAL:
1823 	case AGP_NORMAL:
1824 		value = (physaddr & GTT_PTE_MASK) | GTT_PTE_VALID;
1825 		break;
1826 	default:
1827 		return (-1);
1828 	}
1829 
1830 	*entry = value;
1831 
1832 	return (0);
1833 }
1834 
1835 static int
1836 i8xx_add_to_gtt(gtt_impl_t *gtt, igd_gtt_seg_t seg)
1837 {
1838 	int i;
1839 	uint32_t *paddr;
1840 	uint32_t entry;
1841 	uint32_t maxpages;
1842 
1843 	maxpages = gtt->gtt_info.igd_apersize;
1844 	maxpages = GTT_MB_TO_PAGES(maxpages);
1845 
1846 	paddr = seg.igs_phyaddr;
1847 
1848 	/*
1849 	 * check if gtt max pages reached
1850 	 */
1851 	if ((seg.igs_pgstart + seg.igs_npage) > maxpages)
1852 		return (-1);
1853 
1854 	paddr = seg.igs_phyaddr;
1855 	for (i = seg.igs_pgstart; i < (seg.igs_pgstart + seg.igs_npage);
1856 	    i++, paddr++) {
1857 		if (phys2entry(seg.igs_type, *paddr, &entry))
1858 			return (-1);
1859 		ddi_put32(gtt->gtt_mmio_handle,
1860 		    (uint32_t *)(gtt->gtt_addr + i * sizeof (uint32_t)),
1861 		    entry);
1862 	}
1863 
1864 	return (0);
1865 }
1866 
1867 static void
1868 i8xx_remove_from_gtt(gtt_impl_t *gtt, igd_gtt_seg_t seg)
1869 {
1870 	int i;
1871 	uint32_t maxpages;
1872 
1873 	maxpages = gtt->gtt_info.igd_apersize;
1874 	maxpages = GTT_MB_TO_PAGES(maxpages);
1875 
1876 	/*
1877 	 * check if gtt max pages reached
1878 	 */
1879 	if ((seg.igs_pgstart + seg.igs_npage) > maxpages)
1880 		return;
1881 
1882 	for (i = seg.igs_pgstart; i < (seg.igs_pgstart + seg.igs_npage); i++) {
1883 		ddi_put32(gtt->gtt_mmio_handle,
1884 		    (uint32_t *)(gtt->gtt_addr +
1885 		    i * sizeof (uint32_t)),
1886 		    0);
1887 	}
1888 }
1889