1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright 2010 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 /* Copyright (c) 1990, 1991 UNIX System Laboratories, Inc. */
28 /* Copyright (c) 1984, 1986, 1987, 1988, 1989, 1990 AT&T */
29 /* All Rights Reserved */
30
31 #include <sys/errno.h>
32 #include <sys/types.h>
33 #include <sys/conf.h>
34 #include <sys/kmem.h>
35 #include <sys/visual_io.h>
36 #include <sys/font.h>
37 #include <sys/fbio.h>
38
39 #include <sys/ddi.h>
40 #include <sys/stat.h>
41 #include <sys/sunddi.h>
42 #include <sys/file.h>
43 #include <sys/open.h>
44 #include <sys/modctl.h>
45 #include <sys/vgareg.h>
46 #include <sys/vgasubr.h>
47 #include <sys/pci.h>
48 #include <sys/kd.h>
49 #include <sys/ddi_impldefs.h>
50 #include <sys/sunldi.h>
51 #include <sys/agpgart.h>
52 #include <sys/agp/agpdefs.h>
53 #include <sys/agp/agpmaster_io.h>
54
55 #define MYNAME "vgatext"
56
57 /*
58 * Each instance of this driver has 2 minor nodes:
59 * 0: for common graphics operations
60 * 1: for agpmaster operations
61 */
62 #define GFX_MINOR 0
63 #define AGPMASTER_MINOR 1
64
65 #define MY_NBITSMINOR 1
66 #define DEV2INST(dev) (getminor(dev) >> MY_NBITSMINOR)
67 #define DEV2MINOR(dev) (getminor(dev) & ((1 << MY_NBITSMINOR) - 1))
68 #define INST2NODE1(inst) ((inst) << MY_NBITSMINOR + GFX_MINOR)
69 #define INST2NODE2(inst) (((inst) << MY_NBITSMINOR) + AGPMASTER_MINOR)
70
71 /* I don't know exactly where these should be defined, but this is a */
72 /* heck of a lot better than constants in the code. */
73 #define TEXT_ROWS 25
74 #define TEXT_COLS 80
75
76 #define VGA_BRIGHT_WHITE 0x0f
77 #define VGA_BLACK 0x00
78
79 #define VGA_REG_ADDR 0x3c0
80 #define VGA_REG_SIZE 0x20
81
82 #define VGA_MEM_ADDR 0xa0000
83 #define VGA_MEM_SIZE 0x20000
84
85 #define VGA_MMAP_FB_BASE VGA_MEM_ADDR
86
87 /*
88 * This variable allows for this driver to suspend even if it
89 * shouldn't. Note that by setting it, the framebuffer will probably
90 * not come back. So use it with a serial console, or with serial
91 * line debugging (say, for example, if this driver is being modified
92 * to support _some_ hardware doing suspend and resume).
93 */
94 int vgatext_force_suspend = 0;
95
96 static int vgatext_open(dev_t *, int, int, cred_t *);
97 static int vgatext_close(dev_t, int, int, cred_t *);
98 static int vgatext_ioctl(dev_t, int, intptr_t, int, cred_t *, int *);
99 static int vgatext_devmap(dev_t, devmap_cookie_t, offset_t, size_t,
100 size_t *, uint_t);
101
102 static struct cb_ops cb_vgatext_ops = {
103 vgatext_open, /* cb_open */
104 vgatext_close, /* cb_close */
105 nodev, /* cb_strategy */
106 nodev, /* cb_print */
107 nodev, /* cb_dump */
108 nodev, /* cb_read */
109 nodev, /* cb_write */
110 vgatext_ioctl, /* cb_ioctl */
111 vgatext_devmap, /* cb_devmap */
112 nodev, /* cb_mmap */
113 ddi_devmap_segmap, /* cb_segmap */
114 nochpoll, /* cb_chpoll */
115 ddi_prop_op, /* cb_prop_op */
116 0, /* cb_stream */
117 D_NEW | D_MTSAFE /* cb_flag */
118 };
119
120 static int vgatext_info(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg,
121 void **result);
122 static int vgatext_attach(dev_info_t *, ddi_attach_cmd_t);
123 static int vgatext_detach(dev_info_t *, ddi_detach_cmd_t);
124
125 static struct vis_identifier text_ident = { "SUNWtext" };
126
127 static struct dev_ops vgatext_ops = {
128 DEVO_REV, /* devo_rev */
129 0, /* devo_refcnt */
130 vgatext_info, /* devo_getinfo */
131 nulldev, /* devo_identify */
132 nulldev, /* devo_probe */
133 vgatext_attach, /* devo_attach */
134 vgatext_detach, /* devo_detach */
135 nodev, /* devo_reset */
136 &cb_vgatext_ops, /* devo_cb_ops */
137 (struct bus_ops *)NULL, /* devo_bus_ops */
138 NULL, /* power */
139 ddi_quiesce_not_needed, /* quiesce */
140 };
141
142 struct vgatext_softc {
143 struct vgaregmap regs;
144 struct vgaregmap fb;
145 off_t fb_size;
146 int fb_regno;
147 dev_info_t *devi;
148 int mode; /* KD_TEXT or KD_GRAPHICS */
149 caddr_t text_base; /* hardware text base */
150 char shadow[TEXT_ROWS*TEXT_COLS*2];
151 caddr_t current_base; /* hardware or shadow */
152 struct {
153 boolean_t visible;
154 int row;
155 int col;
156 } cursor;
157 struct vis_polledio polledio;
158 struct {
159 unsigned char red;
160 unsigned char green;
161 unsigned char blue;
162 } colormap[VGA8_CMAP_ENTRIES];
163 unsigned char attrib_palette[VGA_ATR_NUM_PLT];
164 agp_master_softc_t *agp_master; /* NULL means not PCI, for AGP */
165 ddi_acc_handle_t *pci_cfg_hdlp; /* PCI conf handle */
166 unsigned int flags;
167 kmutex_t lock;
168 };
169
170 #define VGATEXT_FLAG_CONSOLE 0x00000001
171 #define VGATEXT_IS_CONSOLE(softc) ((softc)->flags & VGATEXT_FLAG_CONSOLE)
172
173 static int vgatext_devinit(struct vgatext_softc *, struct vis_devinit *data);
174 static void vgatext_cons_copy(struct vgatext_softc *,
175 struct vis_conscopy *);
176 static void vgatext_cons_display(struct vgatext_softc *,
177 struct vis_consdisplay *);
178 static void vgatext_cons_cursor(struct vgatext_softc *,
179 struct vis_conscursor *);
180 static void vgatext_polled_copy(struct vis_polledio_arg *,
181 struct vis_conscopy *);
182 static void vgatext_polled_display(struct vis_polledio_arg *,
183 struct vis_consdisplay *);
184 static void vgatext_polled_cursor(struct vis_polledio_arg *,
185 struct vis_conscursor *);
186 static void vgatext_init(struct vgatext_softc *);
187 static void vgatext_set_text(struct vgatext_softc *);
188 #if defined(USE_BORDERS)
189 static void vgatext_init_graphics(struct vgatext_softc *);
190 #endif
191 static int vgatext_kdsetmode(struct vgatext_softc *softc, int mode);
192 static void vgatext_setfont(struct vgatext_softc *softc);
193 static void vgatext_get_cursor(struct vgatext_softc *softc,
194 screen_pos_t *row, screen_pos_t *col);
195 static void vgatext_set_cursor(struct vgatext_softc *softc, int row, int col);
196 static void vgatext_hide_cursor(struct vgatext_softc *softc);
197 static void vgatext_save_colormap(struct vgatext_softc *softc);
198 static void vgatext_restore_colormap(struct vgatext_softc *softc);
199 static int vgatext_get_pci_reg_index(dev_info_t *const devi,
200 unsigned long himask, unsigned long hival, unsigned long addr,
201 off_t *offset);
202 static int vgatext_get_isa_reg_index(dev_info_t *const devi,
203 unsigned long hival, unsigned long addr, off_t *offset);
204 static void *vgatext_softc_head;
205 static char vgatext_silent;
206 static char happyface_boot;
207
208 /* Loadable Driver stuff */
209
210 static struct modldrv modldrv = {
211 &mod_driverops, /* Type of module. This one is a driver */
212 "VGA text driver", /* Name of the module. */
213 &vgatext_ops, /* driver ops */
214 };
215
216 static struct modlinkage modlinkage = {
217 MODREV_1, (void *) &modldrv, NULL
218 };
219
220 typedef enum pc_colors {
221 pc_black = 0,
222 pc_blue = 1,
223 pc_green = 2,
224 pc_cyan = 3,
225 pc_red = 4,
226 pc_magenta = 5,
227 pc_brown = 6,
228 pc_white = 7,
229 pc_grey = 8,
230 pc_brt_blue = 9,
231 pc_brt_green = 10,
232 pc_brt_cyan = 11,
233 pc_brt_red = 12,
234 pc_brt_magenta = 13,
235 pc_yellow = 14,
236 pc_brt_white = 15
237 } pc_colors_t;
238
239 static const unsigned char solaris_color_to_pc_color[16] = {
240 pc_brt_white, /* 0 - brt_white */
241 pc_black, /* 1 - black */
242 pc_blue, /* 2 - blue */
243 pc_green, /* 3 - green */
244 pc_cyan, /* 4 - cyan */
245 pc_red, /* 5 - red */
246 pc_magenta, /* 6 - magenta */
247 pc_brown, /* 7 - brown */
248 pc_white, /* 8 - white */
249 pc_grey, /* 9 - gery */
250 pc_brt_blue, /* 10 - brt_blue */
251 pc_brt_green, /* 11 - brt_green */
252 pc_brt_cyan, /* 12 - brt_cyan */
253 pc_brt_red, /* 13 - brt_red */
254 pc_brt_magenta, /* 14 - brt_magenta */
255 pc_yellow /* 15 - yellow */
256 };
257
258 static ddi_device_acc_attr_t i8xx_dev_access = {
259 DDI_DEVICE_ATTR_V0,
260 DDI_NEVERSWAP_ACC,
261 DDI_STRICTORDER_ACC
262 };
263
264 static ddi_device_acc_attr_t dev_attr = {
265 DDI_DEVICE_ATTR_V0,
266 DDI_NEVERSWAP_ACC,
267 DDI_STRICTORDER_ACC,
268 };
269
270 int
271 _init(void)
272 {
273 int e;
274
275 if ((e = ddi_soft_state_init(&vgatext_softc_head,
276 sizeof (struct vgatext_softc), 1)) != 0) {
277 return (e);
278 }
279
280 e = mod_install(&modlinkage);
281
282 if (e) {
283 ddi_soft_state_fini(&vgatext_softc_head);
284 }
285 return (e);
286 }
287
288 int
289 _fini(void)
290 {
291 int e;
292
293 if ((e = mod_remove(&modlinkage)) != 0)
294 return (e);
295
296 ddi_soft_state_fini(&vgatext_softc_head);
297
298 return (0);
299 }
300
301 int
302 _info(struct modinfo *modinfop)
303 {
304 return (mod_info(&modlinkage, modinfop));
305 }
306
307 /* default structure for FBIOGATTR ioctl */
308 static struct fbgattr vgatext_attr = {
309 /* real_type owner */
310 FBTYPE_SUNFAST_COLOR, 0,
311 /* fbtype: type h w depth cms size */
312 { FBTYPE_SUNFAST_COLOR, TEXT_ROWS, TEXT_COLS, 1, 256, 0 },
313 /* fbsattr: flags emu_type dev_specific */
314 { 0, FBTYPE_SUN4COLOR, { 0 } },
315 /* emu_types */
316 { -1 }
317 };
318
319 /*
320 * handy macros
321 */
322
323 #define getsoftc(instance) ((struct vgatext_softc *) \
324 ddi_get_soft_state(vgatext_softc_head, (instance)))
325
326 #define STREQ(a, b) (strcmp((a), (b)) == 0)
327
328 /*
329 * NOTE: this function is duplicated here and in gfx_private/vgatext while
330 * we work on a set of commitable interfaces to sunpci.c.
331 *
332 * Use the class code to determine if the device is a PCI-to-PCI bridge.
333 * Returns: B_TRUE if the device is a bridge.
334 * B_FALSE if the device is not a bridge or the property cannot be
335 * retrieved.
336 */
337 static boolean_t
338 is_pci_bridge(dev_info_t *dip)
339 {
340 uint32_t class_code;
341
342 class_code = (uint32_t)ddi_prop_get_int(DDI_DEV_T_ANY, dip,
343 DDI_PROP_DONTPASS, "class-code", 0xffffffff);
344
345 if (class_code == 0xffffffff || class_code == DDI_PROP_NOT_FOUND)
346 return (B_FALSE);
347
348 class_code &= 0x00ffff00;
349 if (class_code == ((PCI_CLASS_BRIDGE << 16) | (PCI_BRIDGE_PCI << 8)))
350 return (B_TRUE);
351
352 return (B_FALSE);
353 }
354
355 static void
356 vgatext_check_for_console(dev_info_t *devi, struct vgatext_softc *softc,
357 int pci_pcie_bus)
358 {
359 ddi_acc_handle_t pci_conf;
360 dev_info_t *pdevi;
361 uint16_t data16;
362
363 /*
364 * Based on Section 11.3, "PCI Display Subsystem Initialization",
365 * of the 1.1 PCI-to-PCI Bridge Architecture Specification
366 * determine if this is the boot console device. First, see
367 * if the SBIOS has turned on PCI I/O for this device. Then if
368 * this is PCI/PCI-E, verify the parent bridge has VGAEnable set.
369 */
370
371 if (pci_config_setup(devi, &pci_conf) != DDI_SUCCESS) {
372 cmn_err(CE_WARN,
373 MYNAME ": can't get PCI conf handle");
374 return;
375 }
376
377 data16 = pci_config_get16(pci_conf, PCI_CONF_COMM);
378 if (data16 & PCI_COMM_IO)
379 softc->flags |= VGATEXT_FLAG_CONSOLE;
380
381 pci_config_teardown(&pci_conf);
382
383 /* If IO not enabled or ISA/EISA, just return */
384 if (!(softc->flags & VGATEXT_FLAG_CONSOLE) || !pci_pcie_bus)
385 return;
386
387 /*
388 * Check for VGA Enable in the Bridge Control register for all
389 * PCI/PCIEX parents. If not set all the way up the chain,
390 * this cannot be the boot console.
391 */
392
393 pdevi = devi;
394 while (pdevi = ddi_get_parent(pdevi)) {
395 int error;
396 ddi_acc_handle_t ppci_conf;
397 char *parent_type = NULL;
398
399 error = ddi_prop_lookup_string(DDI_DEV_T_ANY, pdevi,
400 DDI_PROP_DONTPASS, "device_type", &parent_type);
401 if (error != DDI_SUCCESS) {
402 return;
403 }
404
405 /* Verify still on the PCI/PCIEX parent tree */
406 if (!STREQ(parent_type, "pci") &&
407 !STREQ(parent_type, "pciex")) {
408 ddi_prop_free(parent_type);
409 return;
410 }
411
412 ddi_prop_free(parent_type);
413 parent_type = NULL;
414
415 /* VGAEnable is set only for PCI-to-PCI bridges. */
416 if (is_pci_bridge(pdevi) == B_FALSE)
417 continue;
418
419 if (pci_config_setup(pdevi, &ppci_conf) != DDI_SUCCESS)
420 continue;
421
422 data16 = pci_config_get16(ppci_conf, PCI_BCNF_BCNTRL);
423 pci_config_teardown(&ppci_conf);
424
425 if (!(data16 & PCI_BCNF_BCNTRL_VGA_ENABLE)) {
426 softc->flags &= ~VGATEXT_FLAG_CONSOLE;
427 return;
428 }
429 }
430 }
431
432 static int
433 vgatext_attach(dev_info_t *devi, ddi_attach_cmd_t cmd)
434 {
435 struct vgatext_softc *softc;
436 int unit = ddi_get_instance(devi);
437 int error;
438 char *parent_type = NULL;
439 int reg_rnumber;
440 int agpm = 0;
441 off_t reg_offset;
442 off_t mem_offset;
443 char buf[80], *cons;
444 int pci_pcie_bus = 0;
445
446
447 switch (cmd) {
448 case DDI_ATTACH:
449 break;
450
451 case DDI_RESUME:
452 /*
453 * Though vgatext doesn't really know how to resume
454 * on a generic framebuffer, we should succeed, as
455 * it is far better to have no console, than potentiall
456 * have no machine.
457 */
458 return (DDI_SUCCESS);
459 default:
460 return (DDI_FAILURE);
461 }
462
463 /* DDI_ATTACH */
464
465 /* Allocate softc struct */
466 if (ddi_soft_state_zalloc(vgatext_softc_head, unit) != DDI_SUCCESS) {
467 return (DDI_FAILURE);
468 }
469 softc = getsoftc(unit);
470
471 /* link it in */
472 softc->devi = devi;
473 ddi_set_driver_private(devi, softc);
474
475 softc->polledio.arg = (struct vis_polledio_arg *)softc;
476 softc->polledio.display = vgatext_polled_display;
477 softc->polledio.copy = vgatext_polled_copy;
478 softc->polledio.cursor = vgatext_polled_cursor;
479
480 mutex_init(&(softc->lock), NULL, MUTEX_DRIVER, NULL);
481
482 error = ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_get_parent(devi),
483 DDI_PROP_DONTPASS, "device_type", &parent_type);
484 if (error != DDI_SUCCESS) {
485 cmn_err(CE_WARN, MYNAME ": can't determine parent type.");
486 goto fail;
487 }
488
489 if (STREQ(parent_type, "isa") || STREQ(parent_type, "eisa")) {
490 reg_rnumber = vgatext_get_isa_reg_index(devi, 1, VGA_REG_ADDR,
491 ®_offset);
492 if (reg_rnumber < 0) {
493 cmn_err(CE_WARN,
494 MYNAME ": can't find reg entry for registers");
495 error = DDI_FAILURE;
496 goto fail;
497 }
498 softc->fb_regno = vgatext_get_isa_reg_index(devi, 0,
499 VGA_MEM_ADDR, &mem_offset);
500 if (softc->fb_regno < 0) {
501 cmn_err(CE_WARN,
502 MYNAME ": can't find reg entry for memory");
503 error = DDI_FAILURE;
504 goto fail;
505 }
506 } else if (STREQ(parent_type, "pci") || STREQ(parent_type, "pciex")) {
507 pci_pcie_bus = 1;
508 reg_rnumber = vgatext_get_pci_reg_index(devi,
509 PCI_REG_ADDR_M|PCI_REG_REL_M,
510 PCI_ADDR_IO|PCI_RELOCAT_B, VGA_REG_ADDR,
511 ®_offset);
512 if (reg_rnumber < 0) {
513 cmn_err(CE_WARN,
514 MYNAME ": can't find reg entry for registers");
515 error = DDI_FAILURE;
516 goto fail;
517 }
518 softc->fb_regno = vgatext_get_pci_reg_index(devi,
519 PCI_REG_ADDR_M|PCI_REG_REL_M,
520 PCI_ADDR_MEM32|PCI_RELOCAT_B, VGA_MEM_ADDR,
521 &mem_offset);
522 if (softc->fb_regno < 0) {
523 cmn_err(CE_WARN,
524 MYNAME ": can't find reg entry for memory");
525 error = DDI_FAILURE;
526 goto fail;
527 }
528 agpm = 1; /* should have AGP master support */
529 } else {
530 cmn_err(CE_WARN, MYNAME ": unknown parent type \"%s\".",
531 parent_type);
532 error = DDI_FAILURE;
533 goto fail;
534 }
535 ddi_prop_free(parent_type);
536 parent_type = NULL;
537
538 error = ddi_regs_map_setup(devi, reg_rnumber,
539 (caddr_t *)&softc->regs.addr, reg_offset, VGA_REG_SIZE,
540 &dev_attr, &softc->regs.handle);
541 if (error != DDI_SUCCESS)
542 goto fail;
543 softc->regs.mapped = B_TRUE;
544
545 softc->fb_size = VGA_MEM_SIZE;
546
547 error = ddi_regs_map_setup(devi, softc->fb_regno,
548 (caddr_t *)&softc->fb.addr,
549 mem_offset, softc->fb_size,
550 &dev_attr, &softc->fb.handle);
551 if (error != DDI_SUCCESS)
552 goto fail;
553 softc->fb.mapped = B_TRUE;
554
555 if (ddi_get8(softc->regs.handle,
556 softc->regs.addr + VGA_MISC_R) & VGA_MISC_IOA_SEL)
557 softc->text_base = (caddr_t)softc->fb.addr + VGA_COLOR_BASE;
558 else
559 softc->text_base = (caddr_t)softc->fb.addr + VGA_MONO_BASE;
560
561 if (ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(),
562 DDI_PROP_DONTPASS, "console", &cons) == DDI_SUCCESS) {
563 if (strcmp(cons, "graphics") == 0) {
564 happyface_boot = 1;
565 vgatext_silent = 1;
566 softc->current_base = softc->shadow;
567 } else {
568 softc->current_base = softc->text_base;
569 }
570 ddi_prop_free(cons);
571 } else {
572 softc->current_base = softc->text_base;
573 }
574
575 (void) sprintf(buf, "text-%d", unit);
576 error = ddi_create_minor_node(devi, buf, S_IFCHR,
577 INST2NODE1(unit), DDI_NT_DISPLAY, NULL);
578 if (error != DDI_SUCCESS)
579 goto fail;
580
581 error = ddi_prop_create(makedevice(DDI_MAJOR_T_UNKNOWN, unit),
582 devi, DDI_PROP_CANSLEEP, DDI_KERNEL_IOCTL, NULL, 0);
583 if (error != DDI_SUCCESS)
584 goto fail;
585
586 vgatext_check_for_console(devi, softc, pci_pcie_bus);
587
588 /* only do this if not in graphics mode */
589 if ((vgatext_silent == 0) && (VGATEXT_IS_CONSOLE(softc))) {
590 vgatext_init(softc);
591 vgatext_save_colormap(softc);
592 }
593
594 if (agpm != 0) { /* try AGP master attach */
595 /* setup mapping for PCI config space access */
596 softc->pci_cfg_hdlp = (ddi_acc_handle_t *)
597 kmem_zalloc(sizeof (ddi_acc_handle_t), KM_SLEEP);
598 error = pci_config_setup(devi, softc->pci_cfg_hdlp);
599 if (error != DDI_SUCCESS) {
600 cmn_err(CE_WARN, "vgatext_attach: "
601 "PCI configuration space setup failed");
602 goto fail;
603 }
604
605 (void) agpmaster_attach(softc->devi, &softc->agp_master,
606 *softc->pci_cfg_hdlp, INST2NODE2(unit));
607 }
608
609 return (DDI_SUCCESS);
610
611 fail:
612 if (parent_type != NULL)
613 ddi_prop_free(parent_type);
614 (void) vgatext_detach(devi, DDI_DETACH);
615 return (error);
616 }
617
618 static int
619 vgatext_detach(dev_info_t *devi, ddi_detach_cmd_t cmd)
620 {
621 int instance = ddi_get_instance(devi);
622 struct vgatext_softc *softc = getsoftc(instance);
623
624
625 switch (cmd) {
626 case DDI_DETACH:
627 if (softc->agp_master != NULL) { /* agp initiated */
628 agpmaster_detach(&softc->agp_master);
629 pci_config_teardown(softc->pci_cfg_hdlp);
630 }
631
632 if (softc->fb.mapped)
633 ddi_regs_map_free(&softc->fb.handle);
634 if (softc->regs.mapped)
635 ddi_regs_map_free(&softc->regs.handle);
636 mutex_destroy(&(softc->lock));
637 ddi_remove_minor_node(devi, NULL);
638 (void) ddi_soft_state_free(vgatext_softc_head, instance);
639 return (DDI_SUCCESS);
640
641 case DDI_SUSPEND:
642 /*
643 * This is a generic VGA file, and therefore, cannot
644 * understand how to deal with suspend and resume on
645 * a generic interface. So we fail any attempt to
646 * suspend. At some point in the future, we might use
647 * this as an entrypoint for display drivers and this
648 * assumption may change.
649 *
650 * However, from a platform development perspective,
651 * it is important that this driver suspend if a
652 * developer is using a serial console and/or working
653 * on a framebuffer driver that will support suspend
654 * and resume. Therefore, we have this module tunable
655 * (purposely using a long name) that will allow for
656 * suspend it it is set. Otherwise we fail.
657 */
658 if (vgatext_force_suspend != 0)
659 return (DDI_SUCCESS);
660 else
661 return (DDI_FAILURE);
662
663 default:
664 cmn_err(CE_WARN, "vgatext_detach: unknown cmd 0x%x\n", cmd);
665 return (DDI_FAILURE);
666 }
667 }
668
669 /*ARGSUSED*/
670 static int
671 vgatext_info(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, void **result)
672 {
673 dev_t dev;
674 int error;
675 int instance;
676 struct vgatext_softc *softc;
677
678 error = DDI_SUCCESS;
679
680 dev = (dev_t)arg;
681 instance = DEV2INST(dev);
682 softc = getsoftc(instance);
683
684 switch (infocmd) {
685 case DDI_INFO_DEVT2DEVINFO:
686 if (softc == NULL || softc->devi == NULL) {
687 error = DDI_FAILURE;
688 } else {
689 *result = (void *) softc->devi;
690 error = DDI_SUCCESS;
691 }
692 break;
693 case DDI_INFO_DEVT2INSTANCE:
694 *result = (void *)(uintptr_t)instance;
695 error = DDI_SUCCESS;
696 break;
697 default:
698 error = DDI_FAILURE;
699 break;
700 }
701 return (error);
702 }
703
704
705 /*ARGSUSED*/
706 static int
707 vgatext_open(dev_t *devp, int flag, int otyp, cred_t *cred)
708 {
709 struct vgatext_softc *softc = getsoftc(DEV2INST(*devp));
710
711 if (softc == NULL || otyp == OTYP_BLK)
712 return (ENXIO);
713
714 return (0);
715 }
716
717 /*ARGSUSED*/
718 static int
719 vgatext_close(dev_t devp, int flag, int otyp, cred_t *cred)
720 {
721 return (0);
722 }
723
724 static int
725 do_gfx_ioctl(int cmd, intptr_t data, int mode, struct vgatext_softc *softc)
726 {
727 static char kernel_only[] =
728 "do_gfx_ioctl: %s is a kernel only ioctl";
729 int err;
730 int kd_mode;
731
732 switch (cmd) {
733 case KDSETMODE:
734 return (vgatext_kdsetmode(softc, (int)data));
735
736 case KDGETMODE:
737 kd_mode = softc->mode;
738 if (ddi_copyout(&kd_mode, (void *)data, sizeof (int), mode))
739 return (EFAULT);
740 break;
741
742 case VIS_GETIDENTIFIER:
743 if (ddi_copyout(&text_ident, (void *)data,
744 sizeof (struct vis_identifier), mode))
745 return (EFAULT);
746 break;
747
748 case VIS_DEVINIT:
749
750 if (!(mode & FKIOCTL)) {
751 cmn_err(CE_CONT, kernel_only, "VIS_DEVINIT");
752 return (ENXIO);
753 }
754
755 err = vgatext_devinit(softc, (struct vis_devinit *)data);
756 if (err != 0) {
757 cmn_err(CE_WARN,
758 "vgatext_ioctl: could not initialize console");
759 return (err);
760 }
761 break;
762
763 case VIS_CONSCOPY: /* move */
764 {
765 struct vis_conscopy pma;
766
767 if (ddi_copyin((void *)data, &pma,
768 sizeof (struct vis_conscopy), mode))
769 return (EFAULT);
770
771 vgatext_cons_copy(softc, &pma);
772 break;
773 }
774
775 case VIS_CONSDISPLAY: /* display */
776 {
777 struct vis_consdisplay display_request;
778
779 if (ddi_copyin((void *)data, &display_request,
780 sizeof (display_request), mode))
781 return (EFAULT);
782
783 vgatext_cons_display(softc, &display_request);
784 break;
785 }
786
787 case VIS_CONSCURSOR:
788 {
789 struct vis_conscursor cursor_request;
790
791 if (ddi_copyin((void *)data, &cursor_request,
792 sizeof (cursor_request), mode))
793 return (EFAULT);
794
795 vgatext_cons_cursor(softc, &cursor_request);
796
797 if (cursor_request.action == VIS_GET_CURSOR &&
798 ddi_copyout(&cursor_request, (void *)data,
799 sizeof (cursor_request), mode))
800 return (EFAULT);
801 break;
802 }
803
804 case VIS_GETCMAP:
805 case VIS_PUTCMAP:
806 case FBIOPUTCMAP:
807 case FBIOGETCMAP:
808 /*
809 * At the moment, text mode is not considered to have
810 * a color map.
811 */
812 return (EINVAL);
813
814 case FBIOGATTR:
815 if (copyout(&vgatext_attr, (void *)data,
816 sizeof (struct fbgattr)))
817 return (EFAULT);
818 break;
819
820 case FBIOGTYPE:
821 if (copyout(&vgatext_attr.fbtype, (void *)data,
822 sizeof (struct fbtype)))
823 return (EFAULT);
824 break;
825
826 default:
827 return (ENXIO);
828 }
829 return (0);
830 }
831
832
833 /*ARGSUSED*/
834 static int
835 vgatext_ioctl(
836 dev_t dev,
837 int cmd,
838 intptr_t data,
839 int mode,
840 cred_t *cred,
841 int *rval)
842 {
843 struct vgatext_softc *softc = getsoftc(DEV2INST(dev));
844 int err;
845
846 switch (DEV2MINOR(dev)) {
847 case GFX_MINOR:
848 mutex_enter(&(softc->lock));
849 err = do_gfx_ioctl(cmd, data, mode, softc);
850 mutex_exit(&(softc->lock));
851 break;
852
853 case AGPMASTER_MINOR:
854 err = agpmaster_ioctl(dev, cmd, data, mode, cred, rval,
855 softc->agp_master);
856 break;
857
858 default:
859 /* not a valid minor node */
860 return (EBADF);
861 }
862 return (err);
863 }
864
865 static void
866 vgatext_save_text(struct vgatext_softc *softc)
867 {
868 unsigned i;
869
870 for (i = 0; i < sizeof (softc->shadow); i++)
871 softc->shadow[i] = softc->current_base[i];
872 }
873
874 static void
875 vgatext_progressbar_stop()
876 {
877 extern void progressbar_stop(void);
878
879 if (vgatext_silent == 1) {
880 vgatext_silent = 0;
881 progressbar_stop();
882 }
883 }
884
885 static void
886 vgatext_kdsettext(struct vgatext_softc *softc)
887 {
888 int i;
889
890 vgatext_init(softc);
891 for (i = 0; i < sizeof (softc->shadow); i++) {
892 softc->text_base[i] = softc->shadow[i];
893 }
894 softc->current_base = softc->text_base;
895 if (softc->cursor.visible) {
896 vgatext_set_cursor(softc,
897 softc->cursor.row, softc->cursor.col);
898 }
899 vgatext_restore_colormap(softc);
900 }
901
902 static void
903 vgatext_kdsetgraphics(struct vgatext_softc *softc)
904 {
905 vgatext_progressbar_stop();
906 vgatext_save_text(softc);
907 softc->current_base = softc->shadow;
908 #if defined(USE_BORDERS)
909 vgatext_init_graphics(softc);
910 #endif
911 }
912
913 static int
914 vgatext_kdsetmode(struct vgatext_softc *softc, int mode)
915 {
916 if ((mode == softc->mode) || (!VGATEXT_IS_CONSOLE(softc)))
917 return (0);
918
919 switch (mode) {
920 case KD_TEXT:
921 vgatext_kdsettext(softc);
922 break;
923
924 case KD_GRAPHICS:
925 vgatext_kdsetgraphics(softc);
926 break;
927
928 case KD_RESETTEXT:
929 /*
930 * In order to avoid racing with a starting X server,
931 * this needs to be a test and set that is performed in
932 * a single (softc->lock protected) ioctl into this driver.
933 */
934 if (softc->mode == KD_TEXT && vgatext_silent == 1) {
935 vgatext_progressbar_stop();
936 vgatext_kdsettext(softc);
937 }
938 break;
939
940 default:
941 return (EINVAL);
942 }
943 softc->mode = mode;
944 return (0);
945 }
946
947 /*ARGSUSED*/
948 static int
949 vgatext_devmap(dev_t dev, devmap_cookie_t dhp, offset_t off, size_t len,
950 size_t *maplen, uint_t model)
951 {
952 struct vgatext_softc *softc;
953 int err;
954 size_t length;
955
956
957 softc = getsoftc(DEV2INST(dev));
958 if (softc == NULL) {
959 cmn_err(CE_WARN, "vgatext: Can't find softstate");
960 return (-1);
961 }
962
963 if (!(off >= VGA_MMAP_FB_BASE &&
964 off < VGA_MMAP_FB_BASE + softc->fb_size)) {
965 cmn_err(CE_WARN, "vgatext: Can't map offset 0x%llx", off);
966 return (-1);
967 }
968
969 if (off + len > VGA_MMAP_FB_BASE + softc->fb_size)
970 length = VGA_MMAP_FB_BASE + softc->fb_size - off;
971 else
972 length = len;
973
974 if ((err = devmap_devmem_setup(dhp, softc->devi, NULL, softc->fb_regno,
975 off - VGA_MMAP_FB_BASE,
976 length, PROT_ALL, 0, &dev_attr)) < 0) {
977 return (err);
978 }
979
980
981 *maplen = length;
982 return (0);
983 }
984
985
986 static int
987 vgatext_devinit(struct vgatext_softc *softc, struct vis_devinit *data)
988 {
989 /* initialize console instance */
990 data->version = VIS_CONS_REV;
991 data->width = TEXT_COLS;
992 data->height = TEXT_ROWS;
993 data->linebytes = TEXT_COLS;
994 data->depth = 4;
995 data->mode = VIS_TEXT;
996 data->polledio = &softc->polledio;
997
998 return (0);
999 }
1000
1001 /*
1002 * display a string on the screen at (row, col)
1003 * assume it has been cropped to fit.
1004 */
1005
1006 static void
1007 vgatext_cons_display(struct vgatext_softc *softc, struct vis_consdisplay *da)
1008 {
1009 unsigned char *string;
1010 int i;
1011 unsigned char attr;
1012 struct cgatext {
1013 unsigned char ch;
1014 unsigned char attr;
1015 };
1016 struct cgatext *addr;
1017
1018 /*
1019 * Sanity checks. This is a last-ditch effort to avoid damage
1020 * from brokenness or maliciousness above.
1021 */
1022 if (da->row < 0 || da->row >= TEXT_ROWS ||
1023 da->col < 0 || da->col >= TEXT_COLS ||
1024 da->col + da->width > TEXT_COLS)
1025 return;
1026
1027 /*
1028 * To be fully general, we should copyin the data. This is not
1029 * really relevant for this text-only driver, but a graphical driver
1030 * should support these ioctls from userland to enable simple
1031 * system startup graphics.
1032 */
1033 attr = (solaris_color_to_pc_color[da->bg_color & 0xf] << 4)
1034 | solaris_color_to_pc_color[da->fg_color & 0xf];
1035 string = da->data;
1036 addr = (struct cgatext *)softc->current_base
1037 + (da->row * TEXT_COLS + da->col);
1038 for (i = 0; i < da->width; i++) {
1039 addr->ch = string[i];
1040 addr->attr = attr;
1041 addr++;
1042 }
1043 }
1044
1045 static void
1046 vgatext_polled_display(
1047 struct vis_polledio_arg *arg,
1048 struct vis_consdisplay *da)
1049 {
1050 vgatext_cons_display((struct vgatext_softc *)arg, da);
1051 }
1052
1053 /*
1054 * screen-to-screen copy
1055 */
1056
1057 static void
1058 vgatext_cons_copy(struct vgatext_softc *softc, struct vis_conscopy *ma)
1059 {
1060 unsigned short *from;
1061 unsigned short *to;
1062 int cnt;
1063 screen_size_t chars_per_row;
1064 unsigned short *to_row_start;
1065 unsigned short *from_row_start;
1066 screen_size_t rows_to_move;
1067 unsigned short *base;
1068
1069 /*
1070 * Sanity checks. Note that this is a last-ditch effort to avoid
1071 * damage caused by broken-ness or maliciousness above.
1072 */
1073 if (ma->s_col < 0 || ma->s_col >= TEXT_COLS ||
1074 ma->s_row < 0 || ma->s_row >= TEXT_ROWS ||
1075 ma->e_col < 0 || ma->e_col >= TEXT_COLS ||
1076 ma->e_row < 0 || ma->e_row >= TEXT_ROWS ||
1077 ma->t_col < 0 || ma->t_col >= TEXT_COLS ||
1078 ma->t_row < 0 || ma->t_row >= TEXT_ROWS ||
1079 ma->s_col > ma->e_col ||
1080 ma->s_row > ma->e_row)
1081 return;
1082
1083 /*
1084 * Remember we're going to copy shorts because each
1085 * character/attribute pair is 16 bits.
1086 */
1087 chars_per_row = ma->e_col - ma->s_col + 1;
1088 rows_to_move = ma->e_row - ma->s_row + 1;
1089
1090 /* More sanity checks. */
1091 if (ma->t_row + rows_to_move > TEXT_ROWS ||
1092 ma->t_col + chars_per_row > TEXT_COLS)
1093 return;
1094
1095 base = (unsigned short *)softc->current_base;
1096
1097 to_row_start = base + ((ma->t_row * TEXT_COLS) + ma->t_col);
1098 from_row_start = base + ((ma->s_row * TEXT_COLS) + ma->s_col);
1099
1100 if (to_row_start < from_row_start) {
1101 while (rows_to_move-- > 0) {
1102 to = to_row_start;
1103 from = from_row_start;
1104 to_row_start += TEXT_COLS;
1105 from_row_start += TEXT_COLS;
1106 for (cnt = chars_per_row; cnt-- > 0; )
1107 *to++ = *from++;
1108 }
1109 } else {
1110 /*
1111 * Offset to the end of the region and copy backwards.
1112 */
1113 cnt = rows_to_move * TEXT_COLS + chars_per_row;
1114 to_row_start += cnt;
1115 from_row_start += cnt;
1116
1117 while (rows_to_move-- > 0) {
1118 to_row_start -= TEXT_COLS;
1119 from_row_start -= TEXT_COLS;
1120 to = to_row_start;
1121 from = from_row_start;
1122 for (cnt = chars_per_row; cnt-- > 0; )
1123 *--to = *--from;
1124 }
1125 }
1126 }
1127
1128 static void
1129 vgatext_polled_copy(
1130 struct vis_polledio_arg *arg,
1131 struct vis_conscopy *ca)
1132 {
1133 vgatext_cons_copy((struct vgatext_softc *)arg, ca);
1134 }
1135
1136
1137 static void
1138 vgatext_cons_cursor(struct vgatext_softc *softc, struct vis_conscursor *ca)
1139 {
1140 if (vgatext_silent)
1141 return;
1142
1143 switch (ca->action) {
1144 case VIS_HIDE_CURSOR:
1145 softc->cursor.visible = B_FALSE;
1146 if (softc->current_base == softc->text_base)
1147 vgatext_hide_cursor(softc);
1148 break;
1149 case VIS_DISPLAY_CURSOR:
1150 /*
1151 * Sanity check. This is a last-ditch effort to avoid
1152 * damage from brokenness or maliciousness above.
1153 */
1154 if (ca->col < 0 || ca->col >= TEXT_COLS ||
1155 ca->row < 0 || ca->row >= TEXT_ROWS)
1156 return;
1157
1158 softc->cursor.visible = B_TRUE;
1159 softc->cursor.col = ca->col;
1160 softc->cursor.row = ca->row;
1161 if (softc->current_base == softc->text_base)
1162 vgatext_set_cursor(softc, ca->row, ca->col);
1163 break;
1164 case VIS_GET_CURSOR:
1165 if (softc->current_base == softc->text_base) {
1166 vgatext_get_cursor(softc, &ca->row, &ca->col);
1167 }
1168 break;
1169 }
1170 }
1171
1172 static void
1173 vgatext_polled_cursor(
1174 struct vis_polledio_arg *arg,
1175 struct vis_conscursor *ca)
1176 {
1177 vgatext_cons_cursor((struct vgatext_softc *)arg, ca);
1178 }
1179
1180
1181
1182 /*ARGSUSED*/
1183 static void
1184 vgatext_hide_cursor(struct vgatext_softc *softc)
1185 {
1186 /* Nothing at present */
1187 }
1188
1189 static void
1190 vgatext_set_cursor(struct vgatext_softc *softc, int row, int col)
1191 {
1192 short addr;
1193
1194 if (vgatext_silent)
1195 return;
1196
1197 addr = row * TEXT_COLS + col;
1198
1199 vga_set_crtc(&softc->regs, VGA_CRTC_CLAH, addr >> 8);
1200 vga_set_crtc(&softc->regs, VGA_CRTC_CLAL, addr & 0xff);
1201 }
1202
1203 static int vga_row, vga_col;
1204
1205 static void
1206 vgatext_get_cursor(struct vgatext_softc *softc,
1207 screen_pos_t *row, screen_pos_t *col)
1208 {
1209 short addr;
1210
1211 addr = (vga_get_crtc(&softc->regs, VGA_CRTC_CLAH) << 8) +
1212 vga_get_crtc(&softc->regs, VGA_CRTC_CLAL);
1213
1214 vga_row = *row = addr / TEXT_COLS;
1215 vga_col = *col = addr % TEXT_COLS;
1216 }
1217
1218 /*
1219 * This code is experimental. It's only enabled if console is
1220 * set to graphics, a preliminary implementation of happyface boot.
1221 */
1222 static void
1223 vgatext_set_text(struct vgatext_softc *softc)
1224 {
1225 int i;
1226
1227 if (happyface_boot == 0)
1228 return;
1229
1230 /* we are in graphics mode, set to text 80X25 mode */
1231
1232 /* set misc registers */
1233 vga_set_reg(&softc->regs, VGA_MISC_W, VGA_MISC_TEXT);
1234
1235 /* set sequencer registers */
1236 vga_set_seq(&softc->regs, VGA_SEQ_RST_SYN,
1237 (vga_get_seq(&softc->regs, VGA_SEQ_RST_SYN) &
1238 ~VGA_SEQ_RST_SYN_NO_SYNC_RESET));
1239 for (i = 1; i < NUM_SEQ_REG; i++) {
1240 vga_set_seq(&softc->regs, i, VGA_SEQ_TEXT[i]);
1241 }
1242 vga_set_seq(&softc->regs, VGA_SEQ_RST_SYN,
1243 (vga_get_seq(&softc->regs, VGA_SEQ_RST_SYN) |
1244 VGA_SEQ_RST_SYN_NO_ASYNC_RESET |
1245 VGA_SEQ_RST_SYN_NO_SYNC_RESET));
1246
1247 /* set crt controller registers */
1248 vga_set_crtc(&softc->regs, VGA_CRTC_VRE,
1249 (vga_get_crtc(&softc->regs, VGA_CRTC_VRE) &
1250 ~VGA_CRTC_VRE_LOCK));
1251 for (i = 0; i < NUM_CRTC_REG; i++) {
1252 vga_set_crtc(&softc->regs, i, VGA_CRTC_TEXT[i]);
1253 }
1254
1255 /* set graphics controller registers */
1256 for (i = 0; i < NUM_GRC_REG; i++) {
1257 vga_set_grc(&softc->regs, i, VGA_GRC_TEXT[i]);
1258 }
1259
1260 /* set attribute registers */
1261 for (i = 0; i < NUM_ATR_REG; i++) {
1262 vga_set_atr(&softc->regs, i, VGA_ATR_TEXT[i]);
1263 }
1264
1265 /* set palette */
1266 for (i = 0; i < VGA_TEXT_CMAP_ENTRIES; i++) {
1267 vga_put_cmap(&softc->regs, i, VGA_TEXT_PALETTES[i][0] << 2,
1268 VGA_TEXT_PALETTES[i][1] << 2,
1269 VGA_TEXT_PALETTES[i][2] << 2);
1270 }
1271 for (i = VGA_TEXT_CMAP_ENTRIES; i < VGA8_CMAP_ENTRIES; i++) {
1272 vga_put_cmap(&softc->regs, i, 0, 0, 0);
1273 }
1274
1275 vgatext_save_colormap(softc);
1276 }
1277
1278 static void
1279 vgatext_init(struct vgatext_softc *softc)
1280 {
1281 unsigned char atr_mode;
1282
1283 atr_mode = vga_get_atr(&softc->regs, VGA_ATR_MODE);
1284 if (atr_mode & VGA_ATR_MODE_GRAPH)
1285 vgatext_set_text(softc);
1286 atr_mode = vga_get_atr(&softc->regs, VGA_ATR_MODE);
1287 atr_mode &= ~VGA_ATR_MODE_BLINK;
1288 atr_mode &= ~VGA_ATR_MODE_9WIDE;
1289 vga_set_atr(&softc->regs, VGA_ATR_MODE, atr_mode);
1290 #if defined(USE_BORDERS)
1291 vga_set_atr(&softc->regs, VGA_ATR_BDR_CLR,
1292 vga_get_atr(&softc->regs, VGA_BRIGHT_WHITE));
1293 #else
1294 vga_set_atr(&softc->regs, VGA_ATR_BDR_CLR,
1295 vga_get_atr(&softc->regs, VGA_BLACK));
1296 #endif
1297 vgatext_setfont(softc); /* need selectable font? */
1298 }
1299
1300 #if defined(USE_BORDERS)
1301 static void
1302 vgatext_init_graphics(struct vgatext_softc *softc)
1303 {
1304 vga_set_atr(&softc->regs, VGA_ATR_BDR_CLR,
1305 vga_get_atr(&softc->regs, VGA_BLACK));
1306 }
1307 #endif
1308
1309 static char vga_fontslot = 0;
1310
1311 static void
1312 vgatext_setfont(struct vgatext_softc *softc)
1313 {
1314 static uchar_t fsreg[8] = {0x0, 0x30, 0x5, 0x35, 0xa, 0x3a, 0xf, 0x3f};
1315
1316 extern bitmap_data_t font_data_8x16;
1317 uchar_t *from;
1318 uchar_t volatile *to;
1319 int i, j, s;
1320 int bpc, f_offset;
1321
1322 /* Sync-reset the sequencer registers */
1323 vga_set_seq(&softc->regs, 0x00, 0x01);
1324 /*
1325 * enable write to plane2, since fonts
1326 * could only be loaded into plane2
1327 */
1328 vga_set_seq(&softc->regs, 0x02, 0x04);
1329 /*
1330 * sequentially access data in the bit map being
1331 * selected by MapMask register (index 0x02)
1332 */
1333 vga_set_seq(&softc->regs, 0x04, 0x07);
1334 /* Sync-reset ended, and allow the sequencer to operate */
1335 vga_set_seq(&softc->regs, 0x00, 0x03);
1336
1337 /*
1338 * select plane 2 on Read Mode 0
1339 */
1340 vga_set_grc(&softc->regs, 0x04, 0x02);
1341 /*
1342 * system addresses sequentially access data, follow
1343 * Memory Mode register bit 2 in the sequencer
1344 */
1345 vga_set_grc(&softc->regs, 0x05, 0x00);
1346 /*
1347 * set range of host memory addresses decoded by VGA
1348 * hardware -- A0000h-BFFFFh (128K region)
1349 */
1350 vga_set_grc(&softc->regs, 0x06, 0x00);
1351
1352 /*
1353 * This assumes 8x16 characters, which yield the traditional 80x25
1354 * screen. It really should support other character heights.
1355 */
1356 bpc = 16;
1357 s = vga_fontslot;
1358 f_offset = s * 8 * 1024;
1359 for (i = 0; i < 256; i++) {
1360 from = font_data_8x16.encoding[i];
1361 to = (unsigned char *)softc->fb.addr + f_offset + i * 0x20;
1362 for (j = 0; j < bpc; j++)
1363 *to++ = *from++;
1364 }
1365
1366 /* Sync-reset the sequencer registers */
1367 vga_set_seq(&softc->regs, 0x00, 0x01);
1368 /* enable write to plane 0 and 1 */
1369 vga_set_seq(&softc->regs, 0x02, 0x03);
1370 /*
1371 * enable character map selection
1372 * and odd/even addressing
1373 */
1374 vga_set_seq(&softc->regs, 0x04, 0x03);
1375 /*
1376 * select font map
1377 */
1378 vga_set_seq(&softc->regs, 0x03, fsreg[s]);
1379 /* Sync-reset ended, and allow the sequencer to operate */
1380 vga_set_seq(&softc->regs, 0x00, 0x03);
1381
1382 /* restore graphic registers */
1383
1384 /* select plane 0 */
1385 vga_set_grc(&softc->regs, 0x04, 0x00);
1386 /* enable odd/even addressing mode */
1387 vga_set_grc(&softc->regs, 0x05, 0x10);
1388 /*
1389 * range of host memory addresses decoded by VGA
1390 * hardware -- B8000h-BFFFFh (32K region)
1391 */
1392 vga_set_grc(&softc->regs, 0x06, 0x0e);
1393 /* enable all color plane */
1394 vga_set_atr(&softc->regs, 0x12, 0x0f);
1395
1396 }
1397
1398 static void
1399 vgatext_save_colormap(struct vgatext_softc *softc)
1400 {
1401 int i;
1402
1403 for (i = 0; i < VGA_ATR_NUM_PLT; i++) {
1404 softc->attrib_palette[i] = vga_get_atr(&softc->regs, i);
1405 }
1406 for (i = 0; i < VGA8_CMAP_ENTRIES; i++) {
1407 vga_get_cmap(&softc->regs, i,
1408 &softc->colormap[i].red,
1409 &softc->colormap[i].green,
1410 &softc->colormap[i].blue);
1411 }
1412 }
1413
1414 static void
1415 vgatext_restore_colormap(struct vgatext_softc *softc)
1416 {
1417 int i;
1418
1419 for (i = 0; i < VGA_ATR_NUM_PLT; i++) {
1420 vga_set_atr(&softc->regs, i, softc->attrib_palette[i]);
1421 }
1422 for (i = 0; i < VGA8_CMAP_ENTRIES; i++) {
1423 vga_put_cmap(&softc->regs, i,
1424 softc->colormap[i].red,
1425 softc->colormap[i].green,
1426 softc->colormap[i].blue);
1427 }
1428 }
1429
1430 /*
1431 * search the entries of the "reg" property for one which has the desired
1432 * combination of phys_hi bits and contains the desired address.
1433 *
1434 * This version searches a PCI-style "reg" property. It was prompted by
1435 * issues surrounding the presence or absence of an entry for the ROM:
1436 * (a) a transition problem with PowerPC Virtual Open Firmware
1437 * (b) uncertainty as to whether an entry will be included on a device
1438 * with ROM support (and so an "active" ROM base address register),
1439 * but no ROM actually installed.
1440 *
1441 * See the note below on vgatext_get_isa_reg_index for the reasons for
1442 * returning the offset.
1443 *
1444 * Note that this routine may not be fully general; it is intended for the
1445 * specific purpose of finding a couple of particular VGA reg entries and
1446 * may not be suitable for all reg-searching purposes.
1447 */
1448 static int
1449 vgatext_get_pci_reg_index(
1450 dev_info_t *const devi,
1451 unsigned long himask,
1452 unsigned long hival,
1453 unsigned long addr,
1454 off_t *offset)
1455 {
1456
1457 int length, index;
1458 pci_regspec_t *reg;
1459
1460 if (ddi_getlongprop(DDI_DEV_T_ANY, devi, DDI_PROP_DONTPASS,
1461 "reg", (caddr_t)®, &length) != DDI_PROP_SUCCESS) {
1462 return (-1);
1463 }
1464
1465 for (index = 0; index < length / sizeof (pci_regspec_t); index++) {
1466 if ((reg[index].pci_phys_hi & himask) != hival)
1467 continue;
1468 if (reg[index].pci_size_hi != 0)
1469 continue;
1470 if (reg[index].pci_phys_mid != 0)
1471 continue;
1472 if (reg[index].pci_phys_low > addr)
1473 continue;
1474 if (reg[index].pci_phys_low + reg[index].pci_size_low <= addr)
1475 continue;
1476
1477 *offset = addr - reg[index].pci_phys_low;
1478 kmem_free(reg, (size_t)length);
1479 return (index);
1480 }
1481 kmem_free(reg, (size_t)length);
1482
1483 return (-1);
1484 }
1485
1486 /*
1487 * search the entries of the "reg" property for one which has the desired
1488 * combination of phys_hi bits and contains the desired address.
1489 *
1490 * This version searches a ISA-style "reg" property. It was prompted by
1491 * issues surrounding 8514/A support. By IEEE 1275 compatibility conventions,
1492 * 8514/A registers should have been added after all standard VGA registers.
1493 * Unfortunately, the Solaris/Intel device configuration framework
1494 * (a) lists the 8514/A registers before the video memory, and then
1495 * (b) also sorts the entries so that I/O entries come before memory
1496 * entries.
1497 *
1498 * It returns the "reg" index and offset into that register set.
1499 * The offset is needed because there exist (broken?) BIOSes that
1500 * report larger ranges enclosing the standard ranges. One reports
1501 * 0x3bf for 0x21 instead of 0x3c0 for 0x20, for instance. Using the
1502 * offset adjusts for this difference in the base of the register set.
1503 *
1504 * Note that this routine may not be fully general; it is intended for the
1505 * specific purpose of finding a couple of particular VGA reg entries and
1506 * may not be suitable for all reg-searching purposes.
1507 */
1508 static int
1509 vgatext_get_isa_reg_index(
1510 dev_info_t *const devi,
1511 unsigned long hival,
1512 unsigned long addr,
1513 off_t *offset)
1514 {
1515
1516 int length, index;
1517 struct regspec *reg;
1518
1519 if (ddi_getlongprop(DDI_DEV_T_ANY, devi, DDI_PROP_DONTPASS,
1520 "reg", (caddr_t)®, &length) != DDI_PROP_SUCCESS) {
1521 return (-1);
1522 }
1523
1524 for (index = 0; index < length / sizeof (struct regspec); index++) {
1525 if (reg[index].regspec_bustype != hival)
1526 continue;
1527 if (reg[index].regspec_addr > addr)
1528 continue;
1529 if (reg[index].regspec_addr + reg[index].regspec_size <= addr)
1530 continue;
1531
1532 *offset = addr - reg[index].regspec_addr;
1533 kmem_free(reg, (size_t)length);
1534 return (index);
1535 }
1536 kmem_free(reg, (size_t)length);
1537
1538 return (-1);
1539 }