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[mirror_ubuntu-bionic-kernel.git] / drivers / video / intelfb / intelfbdrv.c
1 /*
2 * intelfb
3 *
4 * Linux framebuffer driver for Intel(R) 830M/845G/852GM/855GM/865G/915G
5 * integrated graphics chips.
6 *
7 * Copyright © 2002, 2003 David Dawes <dawes@xfree86.org>
8 * 2004 Sylvain Meyer
9 *
10 * This driver consists of two parts. The first part (intelfbdrv.c) provides
11 * the basic fbdev interfaces, is derived in part from the radeonfb and
12 * vesafb drivers, and is covered by the GPL. The second part (intelfbhw.c)
13 * provides the code to program the hardware. Most of it is derived from
14 * the i810/i830 XFree86 driver. The HW-specific code is covered here
15 * under a dual license (GPL and MIT/XFree86 license).
16 *
17 * Author: David Dawes
18 *
19 */
20
21 /* $DHD: intelfb/intelfbdrv.c,v 1.20 2003/06/27 15:17:40 dawes Exp $ */
22
23 /*
24 * Changes:
25 * 01/2003 - Initial driver (0.1.0), no mode switching, no acceleration.
26 * This initial version is a basic core that works a lot like
27 * the vesafb driver. It must be built-in to the kernel,
28 * and the initial video mode must be set with vga=XXX at
29 * boot time. (David Dawes)
30 *
31 * 01/2003 - Version 0.2.0: Mode switching added, colormap support
32 * implemented, Y panning, and soft screen blanking implemented.
33 * No acceleration yet. (David Dawes)
34 *
35 * 01/2003 - Version 0.3.0: fbcon acceleration support added. Module
36 * option handling added. (David Dawes)
37 *
38 * 01/2003 - Version 0.4.0: fbcon HW cursor support added. (David Dawes)
39 *
40 * 01/2003 - Version 0.4.1: Add auto-generation of built-in modes.
41 * (David Dawes)
42 *
43 * 02/2003 - Version 0.4.2: Add check for active non-CRT devices, and
44 * mode validation checks. (David Dawes)
45 *
46 * 02/2003 - Version 0.4.3: Check when the VC is in graphics mode so that
47 * acceleration is disabled while an XFree86 server is running.
48 * (David Dawes)
49 *
50 * 02/2003 - Version 0.4.4: Monitor DPMS support. (David Dawes)
51 *
52 * 02/2003 - Version 0.4.5: Basic XFree86 + fbdev working. (David Dawes)
53 *
54 * 02/2003 - Version 0.5.0: Modify to work with the 2.5.32 kernel as well
55 * as 2.4.x kernels. (David Dawes)
56 *
57 * 02/2003 - Version 0.6.0: Split out HW-specifics into a separate file.
58 * (David Dawes)
59 *
60 * 02/2003 - Version 0.7.0: Test on 852GM/855GM. Acceleration and HW
61 * cursor are disabled on this platform. (David Dawes)
62 *
63 * 02/2003 - Version 0.7.1: Test on 845G. Acceleration is disabled
64 * on this platform. (David Dawes)
65 *
66 * 02/2003 - Version 0.7.2: Test on 830M. Acceleration and HW
67 * cursor are disabled on this platform. (David Dawes)
68 *
69 * 02/2003 - Version 0.7.3: Fix 8-bit modes for mobile platforms
70 * (David Dawes)
71 *
72 * 02/2003 - Version 0.7.4: Add checks for FB and FBCON_HAS_CFB* configured
73 * in the kernel, and add mode bpp verification and default
74 * bpp selection based on which FBCON_HAS_CFB* are configured.
75 * (David Dawes)
76 *
77 * 02/2003 - Version 0.7.5: Add basic package/install scripts based on the
78 * DRI packaging scripts. (David Dawes)
79 *
80 * 04/2003 - Version 0.7.6: Fix typo that affects builds with SMP-enabled
81 * kernels. (David Dawes, reported by Anupam).
82 *
83 * 06/2003 - Version 0.7.7:
84 * Fix Makefile.kernel build problem (Tsutomu Yasuda).
85 * Fix mis-placed #endif (2.4.21 kernel).
86 *
87 * 09/2004 - Version 0.9.0 - by Sylvain Meyer
88 * Port to linux 2.6 kernel fbdev
89 * Fix HW accel and HW cursor on i845G
90 * Use of agpgart for fb memory reservation
91 * Add mtrr support
92 *
93 * 10/2004 - Version 0.9.1
94 * Use module_param instead of old MODULE_PARM
95 * Some cleanup
96 *
97 * 11/2004 - Version 0.9.2
98 * Add vram option to reserve more memory than stolen by BIOS
99 * Fix intelfbhw_pan_display typo
100 * Add __initdata annotations
101 *
102 * TODO:
103 *
104 *
105 * Wish List:
106 *
107 *
108 */
109
110 #include <linux/config.h>
111 #include <linux/module.h>
112 #include <linux/kernel.h>
113 #include <linux/errno.h>
114 #include <linux/string.h>
115 #include <linux/mm.h>
116 #include <linux/tty.h>
117 #include <linux/slab.h>
118 #include <linux/delay.h>
119 #include <linux/fb.h>
120 #include <linux/console.h>
121 #include <linux/selection.h>
122 #include <linux/ioport.h>
123 #include <linux/init.h>
124 #include <linux/pci.h>
125 #include <linux/vmalloc.h>
126 #include <linux/kd.h>
127 #include <linux/vt_kern.h>
128 #include <linux/pagemap.h>
129 #include <linux/version.h>
130
131 #include <asm/io.h>
132
133 #ifdef CONFIG_MTRR
134 #include <asm/mtrr.h>
135 #endif
136
137 #include "intelfb.h"
138 #include "intelfbdrv.h"
139 #include "intelfbhw.h"
140
141 /*
142 * Limiting the class to PCI_CLASS_DISPLAY_VGA prevents function 1 of the
143 * mobile chipsets from being registered.
144 */
145 #if DETECT_VGA_CLASS_ONLY
146 #define INTELFB_CLASS_MASK ~0 << 8
147 #else
148 #define INTELFB_CLASS_MASK 0
149 #endif
150
151 static struct pci_device_id intelfb_pci_table[] __devinitdata = {
152 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_830M, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_830M },
153 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_845G, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_845G },
154 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_85XGM, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_85XGM },
155 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_865G, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_865G },
156 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_915G, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_915G },
157 { 0, }
158 };
159
160 /* Global data */
161 static int num_registered = 0;
162
163 /* fb ops */
164 static struct fb_ops intel_fb_ops = {
165 .owner = THIS_MODULE,
166 .fb_check_var = intelfb_check_var,
167 .fb_set_par = intelfb_set_par,
168 .fb_setcolreg = intelfb_setcolreg,
169 .fb_blank = intelfb_blank,
170 .fb_pan_display = intelfb_pan_display,
171 .fb_fillrect = intelfb_fillrect,
172 .fb_copyarea = intelfb_copyarea,
173 .fb_imageblit = intelfb_imageblit,
174 .fb_cursor = intelfb_cursor,
175 .fb_sync = intelfb_sync,
176 .fb_ioctl = intelfb_ioctl
177 };
178
179 /* PCI driver module table */
180 static struct pci_driver intelfb_driver = {
181 .name = "Intel(R) " SUPPORTED_CHIPSETS " Framebuffer Driver",
182 .id_table = intelfb_pci_table,
183 .probe = intelfb_pci_register,
184 .remove = __devexit_p(intelfb_pci_unregister)
185 };
186
187 /* Module description/parameters */
188 MODULE_AUTHOR("David Dawes <dawes@tungstengraphics.com>, "
189 "Sylvain Meyer <sylvain.meyer@worldonline.fr>");
190 MODULE_DESCRIPTION(
191 "Framebuffer driver for Intel(R) " SUPPORTED_CHIPSETS " chipsets");
192 MODULE_LICENSE("Dual BSD/GPL");
193 MODULE_DEVICE_TABLE(pci, intelfb_pci_table);
194
195 static int accel __initdata = 1;
196 static int vram __initdata = 4;
197 static int hwcursor __initdata = 1;
198 static int mtrr __initdata = 1;
199 static int fixed __initdata = 0;
200 static int noinit __initdata = 0;
201 static int noregister __initdata = 0;
202 static int probeonly __initdata = 0;
203 static int idonly __initdata = 0;
204 static int bailearly __initdata = 0;
205 static char *mode __initdata = NULL;
206
207 module_param(accel, bool, S_IRUGO);
208 MODULE_PARM_DESC(accel, "Enable console acceleration");
209 module_param(vram, int, S_IRUGO);
210 MODULE_PARM_DESC(vram, "System RAM to allocate to framebuffer in MiB");
211 module_param(hwcursor, bool, S_IRUGO);
212 MODULE_PARM_DESC(hwcursor, "Enable HW cursor");
213 module_param(mtrr, bool, S_IRUGO);
214 MODULE_PARM_DESC(mtrr, "Enable MTRR support");
215 module_param(fixed, bool, S_IRUGO);
216 MODULE_PARM_DESC(fixed, "Disable mode switching");
217 module_param(noinit, bool, 0);
218 MODULE_PARM_DESC(noinit, "Don't initialise graphics mode when loading");
219 module_param(noregister, bool, 0);
220 MODULE_PARM_DESC(noregister, "Don't register, just probe and exit (debug)");
221 module_param(probeonly, bool, 0);
222 MODULE_PARM_DESC(probeonly, "Do a minimal probe (debug)");
223 module_param(idonly, bool, 0);
224 MODULE_PARM_DESC(idonly, "Just identify without doing anything else (debug)");
225 module_param(bailearly, bool, 0);
226 MODULE_PARM_DESC(bailearly, "Bail out early, depending on value (debug)");
227 module_param(mode, charp, S_IRUGO);
228 MODULE_PARM_DESC(mode,
229 "Initial video mode \"<xres>x<yres>[-<depth>][@<refresh>]\"");
230
231 #ifndef MODULE
232 #define OPT_EQUAL(opt, name) (!strncmp(opt, name, strlen(name)))
233 #define OPT_INTVAL(opt, name) simple_strtoul(opt + strlen(name), NULL, 0)
234 #define OPT_STRVAL(opt, name) (opt + strlen(name))
235
236 static __inline__ char *
237 get_opt_string(const char *this_opt, const char *name)
238 {
239 const char *p;
240 int i;
241 char *ret;
242
243 p = OPT_STRVAL(this_opt, name);
244 i = 0;
245 while (p[i] && p[i] != ' ' && p[i] != ',')
246 i++;
247 ret = kmalloc(i + 1, GFP_KERNEL);
248 if (ret) {
249 strncpy(ret, p, i);
250 ret[i] = '\0';
251 }
252 return ret;
253 }
254
255 static __inline__ int
256 get_opt_int(const char *this_opt, const char *name, int *ret)
257 {
258 if (!ret)
259 return 0;
260
261 if (!OPT_EQUAL(this_opt, name))
262 return 0;
263
264 *ret = OPT_INTVAL(this_opt, name);
265 return 1;
266 }
267
268 static __inline__ int
269 get_opt_bool(const char *this_opt, const char *name, int *ret)
270 {
271 if (!ret)
272 return 0;
273
274 if (OPT_EQUAL(this_opt, name)) {
275 if (this_opt[strlen(name)] == '=')
276 *ret = simple_strtoul(this_opt + strlen(name) + 1,
277 NULL, 0);
278 else
279 *ret = 1;
280 } else {
281 if (OPT_EQUAL(this_opt, "no") && OPT_EQUAL(this_opt + 2, name))
282 *ret = 0;
283 else
284 return 0;
285 }
286 return 1;
287 }
288
289 static int __init
290 intelfb_setup(char *options)
291 {
292 char *this_opt;
293
294 DBG_MSG("intelfb_setup\n");
295
296 if (!options || !*options) {
297 DBG_MSG("no options\n");
298 return 0;
299 } else
300 DBG_MSG("options: %s\n", options);
301
302 /*
303 * These are the built-in options analogous to the module parameters
304 * defined above.
305 *
306 * The syntax is:
307 *
308 * video=intelfb:[mode][,<param>=<val>] ...
309 *
310 * e.g.,
311 *
312 * video=intelfb:1024x768-16@75,accel=0
313 */
314
315 while ((this_opt = strsep(&options, ","))) {
316 if (!*this_opt)
317 continue;
318 if (get_opt_bool(this_opt, "accel", &accel))
319 ;
320 else if (get_opt_int(this_opt, "vram", &vram))
321 ;
322 else if (get_opt_bool(this_opt, "hwcursor", &hwcursor))
323 ;
324 else if (get_opt_bool(this_opt, "mtrr", &mtrr))
325 ;
326 else if (get_opt_bool(this_opt, "fixed", &fixed))
327 ;
328 else if (get_opt_bool(this_opt, "init", &noinit))
329 noinit = !noinit;
330 else if (OPT_EQUAL(this_opt, "mode="))
331 mode = get_opt_string(this_opt, "mode=");
332 else
333 mode = this_opt;
334 }
335
336 return 0;
337 }
338
339 #endif
340
341 static int __init
342 intelfb_init(void)
343 {
344 #ifndef MODULE
345 char *option = NULL;
346 #endif
347
348 DBG_MSG("intelfb_init\n");
349
350 INF_MSG("Framebuffer driver for "
351 "Intel(R) " SUPPORTED_CHIPSETS " chipsets\n");
352 INF_MSG("Version " INTELFB_VERSION "\n");
353
354 if (idonly)
355 return -ENODEV;
356
357 #ifndef MODULE
358 if (fb_get_options("intelfb", &option))
359 return -ENODEV;
360 intelfb_setup(option);
361 #endif
362
363 return pci_register_driver(&intelfb_driver);
364 }
365
366 static void __exit
367 intelfb_exit(void)
368 {
369 DBG_MSG("intelfb_exit\n");
370 pci_unregister_driver(&intelfb_driver);
371 }
372
373 module_init(intelfb_init);
374 module_exit(intelfb_exit);
375
376 /***************************************************************
377 * mtrr support functions *
378 ***************************************************************/
379
380 #ifdef CONFIG_MTRR
381 static inline void __devinit set_mtrr(struct intelfb_info *dinfo)
382 {
383 dinfo->mtrr_reg = mtrr_add(dinfo->aperture.physical,
384 dinfo->aperture.size, MTRR_TYPE_WRCOMB, 1);
385 if (dinfo->mtrr_reg < 0) {
386 ERR_MSG("unable to set MTRR\n");
387 return;
388 }
389 dinfo->has_mtrr = 1;
390 }
391 static inline void unset_mtrr(struct intelfb_info *dinfo)
392 {
393 if (dinfo->has_mtrr)
394 mtrr_del(dinfo->mtrr_reg, dinfo->aperture.physical,
395 dinfo->aperture.size);
396 }
397 #else
398 #define set_mtrr(x) WRN_MSG("MTRR is disabled in the kernel\n")
399
400 #define unset_mtrr(x) do { } while (0)
401 #endif /* CONFIG_MTRR */
402
403 /***************************************************************
404 * driver init / cleanup *
405 ***************************************************************/
406
407 static void
408 cleanup(struct intelfb_info *dinfo)
409 {
410 DBG_MSG("cleanup\n");
411
412 if (!dinfo)
413 return;
414
415 fb_dealloc_cmap(&dinfo->info->cmap);
416 kfree(dinfo->info->pixmap.addr);
417
418 if (dinfo->registered)
419 unregister_framebuffer(dinfo->info);
420
421 unset_mtrr(dinfo);
422
423 if (dinfo->fbmem_gart && dinfo->gtt_fb_mem) {
424 agp_unbind_memory(dinfo->gtt_fb_mem);
425 agp_free_memory(dinfo->gtt_fb_mem);
426 }
427 if (dinfo->gtt_cursor_mem) {
428 agp_unbind_memory(dinfo->gtt_cursor_mem);
429 agp_free_memory(dinfo->gtt_cursor_mem);
430 }
431 if (dinfo->gtt_ring_mem) {
432 agp_unbind_memory(dinfo->gtt_ring_mem);
433 agp_free_memory(dinfo->gtt_ring_mem);
434 }
435
436 if (dinfo->mmio_base)
437 iounmap((void __iomem *)dinfo->mmio_base);
438 if (dinfo->aperture.virtual)
439 iounmap((void __iomem *)dinfo->aperture.virtual);
440
441 if (dinfo->mmio_base_phys)
442 release_mem_region(dinfo->mmio_base_phys, INTEL_REG_SIZE);
443 if (dinfo->aperture.physical)
444 release_mem_region(dinfo->aperture.physical,
445 dinfo->aperture.size);
446 framebuffer_release(dinfo->info);
447 }
448
449 #define bailout(dinfo) do { \
450 DBG_MSG("bailout\n"); \
451 cleanup(dinfo); \
452 INF_MSG("Not going to register framebuffer, exiting...\n"); \
453 return -ENODEV; \
454 } while (0)
455
456
457 static int __devinit
458 intelfb_pci_register(struct pci_dev *pdev, const struct pci_device_id *ent)
459 {
460 struct fb_info *info;
461 struct intelfb_info *dinfo;
462 int i, j, err, dvo;
463 int aperture_size, stolen_size;
464 struct agp_kern_info gtt_info;
465 int agp_memtype;
466 const char *s;
467 struct agp_bridge_data *bridge;
468 int aperture_bar = 0;
469 int mmio_bar = 1;
470
471 DBG_MSG("intelfb_pci_register\n");
472
473 num_registered++;
474 if (num_registered != 1) {
475 ERR_MSG("Attempted to register %d devices "
476 "(should be only 1).\n", num_registered);
477 return -ENODEV;
478 }
479
480 info = framebuffer_alloc(sizeof(struct intelfb_info), &pdev->dev);
481 if (!info) {
482 ERR_MSG("Could not allocate memory for intelfb_info.\n");
483 return -ENODEV;
484 }
485 if (fb_alloc_cmap(&info->cmap, 256, 1) < 0) {
486 ERR_MSG("Could not allocate cmap for intelfb_info.\n");
487 goto err_out_cmap;
488 return -ENODEV;
489 }
490
491 dinfo = info->par;
492 dinfo->info = info;
493 dinfo->fbops = &intel_fb_ops;
494 dinfo->pdev = pdev;
495
496 /* Reserve pixmap space. */
497 info->pixmap.addr = kmalloc(64 * 1024, GFP_KERNEL);
498 if (info->pixmap.addr == NULL) {
499 ERR_MSG("Cannot reserve pixmap memory.\n");
500 goto err_out_pixmap;
501 }
502 memset(info->pixmap.addr, 0, 64 * 1024);
503
504 /* set early this option because it could be changed by tv encoder
505 driver */
506 dinfo->fixed_mode = fixed;
507
508 /* Enable device. */
509 if ((err = pci_enable_device(pdev))) {
510 ERR_MSG("Cannot enable device.\n");
511 cleanup(dinfo);
512 return -ENODEV;
513 }
514
515 /* Set base addresses. */
516 if (ent->device == PCI_DEVICE_ID_INTEL_915G) {
517 aperture_bar = 2;
518 mmio_bar = 0;
519 /* Disable HW cursor on 915G (not implemented yet) */
520 hwcursor = 0;
521 }
522 dinfo->aperture.physical = pci_resource_start(pdev, aperture_bar);
523 dinfo->aperture.size = pci_resource_len(pdev, aperture_bar);
524 dinfo->mmio_base_phys = pci_resource_start(pdev, mmio_bar);
525 DBG_MSG("fb aperture: 0x%llx/0x%llx, MMIO region: 0x%llx/0x%llx\n",
526 (unsigned long long)pci_resource_start(pdev, aperture_bar),
527 (unsigned long long)pci_resource_len(pdev, aperture_bar),
528 (unsigned long long)pci_resource_start(pdev, mmio_bar),
529 (unsigned long long)pci_resource_len(pdev, mmio_bar));
530
531 /* Reserve the fb and MMIO regions */
532 if (!request_mem_region(dinfo->aperture.physical, dinfo->aperture.size,
533 INTELFB_MODULE_NAME)) {
534 ERR_MSG("Cannot reserve FB region.\n");
535 cleanup(dinfo);
536 return -ENODEV;
537 }
538 if (!request_mem_region(dinfo->mmio_base_phys,
539 INTEL_REG_SIZE,
540 INTELFB_MODULE_NAME)) {
541 ERR_MSG("Cannot reserve MMIO region.\n");
542 cleanup(dinfo);
543 return -ENODEV;
544 }
545
546 /* Map the fb and MMIO regions */
547 dinfo->aperture.virtual = (u8 __iomem *)ioremap_nocache
548 (dinfo->aperture.physical, dinfo->aperture.size);
549 if (!dinfo->aperture.virtual) {
550 ERR_MSG("Cannot remap FB region.\n");
551 cleanup(dinfo);
552 return -ENODEV;
553 }
554 dinfo->mmio_base =
555 (u8 __iomem *)ioremap_nocache(dinfo->mmio_base_phys,
556 INTEL_REG_SIZE);
557 if (!dinfo->mmio_base) {
558 ERR_MSG("Cannot remap MMIO region.\n");
559 cleanup(dinfo);
560 return -ENODEV;
561 }
562
563 /* Get the chipset info. */
564 dinfo->pci_chipset = pdev->device;
565
566 if (intelfbhw_get_chipset(pdev, &dinfo->name, &dinfo->chipset,
567 &dinfo->mobile)) {
568 cleanup(dinfo);
569 return -ENODEV;
570 }
571
572 if (intelfbhw_get_memory(pdev, &aperture_size,&stolen_size)) {
573 cleanup(dinfo);
574 return -ENODEV;
575 }
576
577 INF_MSG("%02x:%02x.%d: %s, aperture size %dMB, "
578 "stolen memory %dkB\n",
579 pdev->bus->number, PCI_SLOT(pdev->devfn),
580 PCI_FUNC(pdev->devfn), dinfo->name,
581 BtoMB(aperture_size), BtoKB(stolen_size));
582
583 /* Set these from the options. */
584 dinfo->accel = accel;
585 dinfo->hwcursor = hwcursor;
586
587 if (NOACCEL_CHIPSET(dinfo) && dinfo->accel == 1) {
588 INF_MSG("Acceleration is not supported for the %s chipset.\n",
589 dinfo->name);
590 dinfo->accel = 0;
591 }
592
593 /* Framebuffer parameters - Use all the stolen memory if >= vram */
594 if (ROUND_UP_TO_PAGE(stolen_size) >= MB(vram)) {
595 dinfo->fb.size = ROUND_UP_TO_PAGE(stolen_size);
596 dinfo->fbmem_gart = 0;
597 } else {
598 dinfo->fb.size = MB(vram);
599 dinfo->fbmem_gart = 1;
600 }
601
602 /* Allocate space for the ring buffer and HW cursor if enabled. */
603 if (dinfo->accel) {
604 dinfo->ring.size = RINGBUFFER_SIZE;
605 dinfo->ring_tail_mask = dinfo->ring.size - 1;
606 }
607 if (dinfo->hwcursor) {
608 dinfo->cursor.size = HW_CURSOR_SIZE;
609 }
610
611 /* Use agpgart to manage the GATT */
612 if (!(bridge = agp_backend_acquire(pdev))) {
613 ERR_MSG("cannot acquire agp\n");
614 cleanup(dinfo);
615 return -ENODEV;
616 }
617
618 /* get the current gatt info */
619 if (agp_copy_info(bridge, &gtt_info)) {
620 ERR_MSG("cannot get agp info\n");
621 agp_backend_release(bridge);
622 cleanup(dinfo);
623 return -ENODEV;
624 }
625
626 /* set the mem offsets - set them after the already used pages */
627 if (dinfo->accel) {
628 dinfo->ring.offset = (stolen_size >> 12)
629 + gtt_info.current_memory;
630 }
631 if (dinfo->hwcursor) {
632 dinfo->cursor.offset = (stolen_size >> 12) +
633 + gtt_info.current_memory + (dinfo->ring.size >> 12);
634 }
635 if (dinfo->fbmem_gart) {
636 dinfo->fb.offset = (stolen_size >> 12) +
637 + gtt_info.current_memory + (dinfo->ring.size >> 12)
638 + (dinfo->cursor.size >> 12);
639 }
640
641 /* Allocate memories (which aren't stolen) */
642 if (dinfo->accel) {
643 if (!(dinfo->gtt_ring_mem =
644 agp_allocate_memory(bridge, dinfo->ring.size >> 12,
645 AGP_NORMAL_MEMORY))) {
646 ERR_MSG("cannot allocate ring buffer memory\n");
647 agp_backend_release(bridge);
648 cleanup(dinfo);
649 return -ENOMEM;
650 }
651 if (agp_bind_memory(dinfo->gtt_ring_mem,
652 dinfo->ring.offset)) {
653 ERR_MSG("cannot bind ring buffer memory\n");
654 agp_backend_release(bridge);
655 cleanup(dinfo);
656 return -EBUSY;
657 }
658 dinfo->ring.physical = dinfo->aperture.physical
659 + (dinfo->ring.offset << 12);
660 dinfo->ring.virtual = dinfo->aperture.virtual
661 + (dinfo->ring.offset << 12);
662 dinfo->ring_head = dinfo->ring.virtual;
663 }
664 if (dinfo->hwcursor) {
665 agp_memtype = dinfo->mobile ? AGP_PHYSICAL_MEMORY
666 : AGP_NORMAL_MEMORY;
667 if (!(dinfo->gtt_cursor_mem =
668 agp_allocate_memory(bridge, dinfo->cursor.size >> 12,
669 agp_memtype))) {
670 ERR_MSG("cannot allocate cursor memory\n");
671 agp_backend_release(bridge);
672 cleanup(dinfo);
673 return -ENOMEM;
674 }
675 if (agp_bind_memory(dinfo->gtt_cursor_mem,
676 dinfo->cursor.offset)) {
677 ERR_MSG("cannot bind cursor memory\n");
678 agp_backend_release(bridge);
679 cleanup(dinfo);
680 return -EBUSY;
681 }
682 if (dinfo->mobile)
683 dinfo->cursor.physical
684 = dinfo->gtt_cursor_mem->physical;
685 else
686 dinfo->cursor.physical = dinfo->aperture.physical
687 + (dinfo->cursor.offset << 12);
688 dinfo->cursor.virtual = dinfo->aperture.virtual
689 + (dinfo->cursor.offset << 12);
690 }
691 if (dinfo->fbmem_gart) {
692 if (!(dinfo->gtt_fb_mem =
693 agp_allocate_memory(bridge, dinfo->fb.size >> 12,
694 AGP_NORMAL_MEMORY))) {
695 WRN_MSG("cannot allocate framebuffer memory - use "
696 "the stolen one\n");
697 dinfo->fbmem_gart = 0;
698 }
699 if (agp_bind_memory(dinfo->gtt_fb_mem,
700 dinfo->fb.offset)) {
701 WRN_MSG("cannot bind framebuffer memory - use "
702 "the stolen one\n");
703 dinfo->fbmem_gart = 0;
704 }
705 }
706
707 /* update framebuffer memory parameters */
708 if (!dinfo->fbmem_gart)
709 dinfo->fb.offset = 0; /* starts at offset 0 */
710 dinfo->fb.physical = dinfo->aperture.physical
711 + (dinfo->fb.offset << 12);
712 dinfo->fb.virtual = dinfo->aperture.virtual + (dinfo->fb.offset << 12);
713 dinfo->fb_start = dinfo->fb.offset << 12;
714
715 /* release agpgart */
716 agp_backend_release(bridge);
717
718 if (mtrr)
719 set_mtrr(dinfo);
720
721 DBG_MSG("fb: 0x%x(+ 0x%x)/0x%x (0x%x)\n",
722 dinfo->fb.physical, dinfo->fb.offset, dinfo->fb.size,
723 (u32 __iomem ) dinfo->fb.virtual);
724 DBG_MSG("MMIO: 0x%x/0x%x (0x%x)\n",
725 dinfo->mmio_base_phys, INTEL_REG_SIZE,
726 (u32 __iomem) dinfo->mmio_base);
727 DBG_MSG("ring buffer: 0x%x/0x%x (0x%x)\n",
728 dinfo->ring.physical, dinfo->ring.size,
729 (u32 __iomem ) dinfo->ring.virtual);
730 DBG_MSG("HW cursor: 0x%x/0x%x (0x%x) (offset 0x%x) (phys 0x%x)\n",
731 dinfo->cursor.physical, dinfo->cursor.size,
732 (u32 __iomem ) dinfo->cursor.virtual, dinfo->cursor.offset,
733 dinfo->cursor.physical);
734
735 DBG_MSG("options: vram = %d, accel = %d, hwcursor = %d, fixed = %d, "
736 "noinit = %d\n", vram, accel, hwcursor, fixed, noinit);
737 DBG_MSG("options: mode = \"%s\"\n", mode ? mode : "");
738
739 if (probeonly)
740 bailout(dinfo);
741
742 /*
743 * Check if the LVDS port or any DVO ports are enabled. If so,
744 * don't allow mode switching
745 */
746 dvo = intelfbhw_check_non_crt(dinfo);
747 if (dvo) {
748 dinfo->fixed_mode = 1;
749 WRN_MSG("Non-CRT device is enabled ( ");
750 i = 0;
751 while (dvo) {
752 if (dvo & 1) {
753 s = intelfbhw_dvo_to_string(1 << i);
754 if (s)
755 printk("%s ", s);
756 }
757 dvo >>= 1;
758 ++i;
759 }
760 printk("). Disabling mode switching.\n");
761 }
762
763 if (bailearly == 1)
764 bailout(dinfo);
765
766 if (FIXED_MODE(dinfo) && ORIG_VIDEO_ISVGA != VIDEO_TYPE_VLFB) {
767 ERR_MSG("Video mode must be programmed at boot time.\n");
768 cleanup(dinfo);
769 return -ENODEV;
770 }
771
772 if (bailearly == 2)
773 bailout(dinfo);
774
775 /* Initialise dinfo and related data. */
776 /* If an initial mode was programmed at boot time, get its details. */
777 if (ORIG_VIDEO_ISVGA == VIDEO_TYPE_VLFB)
778 get_initial_mode(dinfo);
779
780 if (bailearly == 3)
781 bailout(dinfo);
782
783 if (FIXED_MODE(dinfo)) {
784 /* remap fb address */
785 update_dinfo(dinfo, &dinfo->initial_var);
786 }
787
788 if (bailearly == 4)
789 bailout(dinfo);
790
791
792 if (intelfb_set_fbinfo(dinfo)) {
793 cleanup(dinfo);
794 return -ENODEV;
795 }
796
797 if (bailearly == 5)
798 bailout(dinfo);
799
800 for (i = 0; i < 16; i++) {
801 j = color_table[i];
802 dinfo->palette[i].red = default_red[j];
803 dinfo->palette[i].green = default_grn[j];
804 dinfo->palette[i].blue = default_blu[j];
805 }
806
807 if (bailearly == 6)
808 bailout(dinfo);
809
810 pci_set_drvdata(pdev, dinfo);
811
812 /* Save the initial register state. */
813 i = intelfbhw_read_hw_state(dinfo, &dinfo->save_state,
814 bailearly > 6 ? bailearly - 6 : 0);
815 if (i != 0) {
816 DBG_MSG("intelfbhw_read_hw_state returned %d\n", i);
817 bailout(dinfo);
818 }
819
820 intelfbhw_print_hw_state(dinfo, &dinfo->save_state);
821
822 if (bailearly == 18)
823 bailout(dinfo);
824
825 /* Cursor initialisation */
826 if (dinfo->hwcursor) {
827 intelfbhw_cursor_init(dinfo);
828 intelfbhw_cursor_reset(dinfo);
829 }
830
831 if (bailearly == 19)
832 bailout(dinfo);
833
834 /* 2d acceleration init */
835 if (dinfo->accel)
836 intelfbhw_2d_start(dinfo);
837
838 if (bailearly == 20)
839 bailout(dinfo);
840
841 if (noregister)
842 bailout(dinfo);
843
844 if (register_framebuffer(dinfo->info) < 0) {
845 ERR_MSG("Cannot register framebuffer.\n");
846 cleanup(dinfo);
847 return -ENODEV;
848 }
849
850 dinfo->registered = 1;
851
852 return 0;
853
854 err_out_pixmap:
855 fb_dealloc_cmap(&info->cmap);
856 err_out_cmap:
857 framebuffer_release(info);
858 return -ENODEV;
859 }
860
861 static void __devexit
862 intelfb_pci_unregister(struct pci_dev *pdev)
863 {
864 struct intelfb_info *dinfo = pci_get_drvdata(pdev);
865
866 DBG_MSG("intelfb_pci_unregister\n");
867
868 if (!dinfo)
869 return;
870
871 cleanup(dinfo);
872
873 pci_set_drvdata(pdev, NULL);
874 }
875
876 /***************************************************************
877 * helper functions *
878 ***************************************************************/
879
880 int __inline__
881 intelfb_var_to_depth(const struct fb_var_screeninfo *var)
882 {
883 DBG_MSG("intelfb_var_to_depth: bpp: %d, green.length is %d\n",
884 var->bits_per_pixel, var->green.length);
885
886 switch (var->bits_per_pixel) {
887 case 16:
888 return (var->green.length == 6) ? 16 : 15;
889 case 32:
890 return 24;
891 default:
892 return var->bits_per_pixel;
893 }
894 }
895
896
897 static __inline__ int
898 var_to_refresh(const struct fb_var_screeninfo *var)
899 {
900 int xtot = var->xres + var->left_margin + var->right_margin +
901 var->hsync_len;
902 int ytot = var->yres + var->upper_margin + var->lower_margin +
903 var->vsync_len;
904
905 return (1000000000 / var->pixclock * 1000 + 500) / xtot / ytot;
906 }
907
908 /***************************************************************
909 * Various intialisation functions *
910 ***************************************************************/
911
912 static void __devinit
913 get_initial_mode(struct intelfb_info *dinfo)
914 {
915 struct fb_var_screeninfo *var;
916 int xtot, ytot;
917
918 DBG_MSG("get_initial_mode\n");
919
920 dinfo->initial_vga = 1;
921 dinfo->initial_fb_base = screen_info.lfb_base;
922 dinfo->initial_video_ram = screen_info.lfb_size * KB(64);
923 dinfo->initial_pitch = screen_info.lfb_linelength;
924
925 var = &dinfo->initial_var;
926 memset(var, 0, sizeof(*var));
927 var->xres = screen_info.lfb_width;
928 var->yres = screen_info.lfb_height;
929 var->bits_per_pixel = screen_info.lfb_depth;
930 switch (screen_info.lfb_depth) {
931 case 15:
932 var->bits_per_pixel = 16;
933 break;
934 case 24:
935 var->bits_per_pixel = 32;
936 break;
937 }
938
939 DBG_MSG("Initial info: FB is 0x%x/0x%x (%d kByte)\n",
940 dinfo->initial_fb_base, dinfo->initial_video_ram,
941 BtoKB(dinfo->initial_video_ram));
942
943 DBG_MSG("Initial info: mode is %dx%d-%d (%d)\n",
944 var->xres, var->yres, var->bits_per_pixel,
945 dinfo->initial_pitch);
946
947 /* Dummy timing values (assume 60Hz) */
948 var->left_margin = (var->xres / 8) & 0xf8;
949 var->right_margin = 32;
950 var->upper_margin = 16;
951 var->lower_margin = 4;
952 var->hsync_len = (var->xres / 8) & 0xf8;
953 var->vsync_len = 4;
954
955 xtot = var->xres + var->left_margin +
956 var->right_margin + var->hsync_len;
957 ytot = var->yres + var->upper_margin +
958 var->lower_margin + var->vsync_len;
959 var->pixclock = 10000000 / xtot * 1000 / ytot * 100 / 60;
960
961 var->height = -1;
962 var->width = -1;
963
964 if (var->bits_per_pixel > 8) {
965 var->red.offset = screen_info.red_pos;
966 var->red.length = screen_info.red_size;
967 var->green.offset = screen_info.green_pos;
968 var->green.length = screen_info.green_size;
969 var->blue.offset = screen_info.blue_pos;
970 var->blue.length = screen_info.blue_size;
971 var->transp.offset = screen_info.rsvd_pos;
972 var->transp.length = screen_info.rsvd_size;
973 } else {
974 var->red.length = 8;
975 var->green.length = 8;
976 var->blue.length = 8;
977 }
978 }
979
980 static int __devinit
981 intelfb_init_var(struct intelfb_info *dinfo)
982 {
983 struct fb_var_screeninfo *var;
984 int msrc = 0;
985
986 DBG_MSG("intelfb_init_var\n");
987
988 var = &dinfo->info->var;
989 if (FIXED_MODE(dinfo)) {
990 memcpy(var, &dinfo->initial_var,
991 sizeof(struct fb_var_screeninfo));
992 msrc = 5;
993 } else {
994 if (mode) {
995 msrc = fb_find_mode(var, dinfo->info, mode,
996 vesa_modes, VESA_MODEDB_SIZE,
997 NULL, 0);
998 if (msrc)
999 msrc |= 8;
1000 }
1001 if (!msrc) {
1002 msrc = fb_find_mode(var, dinfo->info, PREFERRED_MODE,
1003 vesa_modes, VESA_MODEDB_SIZE,
1004 NULL, 0);
1005 }
1006 }
1007
1008 if (!msrc) {
1009 ERR_MSG("Cannot find a suitable video mode.\n");
1010 return 1;
1011 }
1012
1013 INF_MSG("Initial video mode is %dx%d-%d@%d.\n", var->xres, var->yres,
1014 var->bits_per_pixel, var_to_refresh(var));
1015
1016 DBG_MSG("Initial video mode is from %d.\n", msrc);
1017
1018 #if ALLOCATE_FOR_PANNING
1019 /* Allow use of half of the video ram for panning */
1020 var->xres_virtual = var->xres;
1021 var->yres_virtual =
1022 dinfo->fb.size / 2 / (var->bits_per_pixel * var->xres);
1023 if (var->yres_virtual < var->yres)
1024 var->yres_virtual = var->yres;
1025 #else
1026 var->yres_virtual = var->yres;
1027 #endif
1028
1029 if (dinfo->accel)
1030 var->accel_flags |= FB_ACCELF_TEXT;
1031 else
1032 var->accel_flags &= ~FB_ACCELF_TEXT;
1033
1034 return 0;
1035 }
1036
1037 static int __devinit
1038 intelfb_set_fbinfo(struct intelfb_info *dinfo)
1039 {
1040 struct fb_info *info = dinfo->info;
1041
1042 DBG_MSG("intelfb_set_fbinfo\n");
1043
1044 info->flags = FBINFO_FLAG_DEFAULT;
1045 info->fbops = &intel_fb_ops;
1046 info->pseudo_palette = dinfo->pseudo_palette;
1047
1048 info->pixmap.size = 64*1024;
1049 info->pixmap.buf_align = 8;
1050 info->pixmap.flags = FB_PIXMAP_SYSTEM;
1051
1052 if (intelfb_init_var(dinfo))
1053 return 1;
1054
1055 info->pixmap.scan_align = 1;
1056
1057 update_dinfo(dinfo, &info->var);
1058
1059 return 0;
1060 }
1061
1062 /* Update dinfo to match the active video mode. */
1063 static void
1064 update_dinfo(struct intelfb_info *dinfo, struct fb_var_screeninfo *var)
1065 {
1066 DBG_MSG("update_dinfo\n");
1067
1068 dinfo->bpp = var->bits_per_pixel;
1069 dinfo->depth = intelfb_var_to_depth(var);
1070 dinfo->xres = var->xres;
1071 dinfo->yres = var->xres;
1072 dinfo->pixclock = var->pixclock;
1073
1074 intelfb_get_fix(&dinfo->info->fix, dinfo->info);
1075
1076 switch (dinfo->bpp) {
1077 case 8:
1078 dinfo->visual = FB_VISUAL_PSEUDOCOLOR;
1079 dinfo->pitch = var->xres_virtual;
1080 break;
1081 case 16:
1082 dinfo->visual = FB_VISUAL_TRUECOLOR;
1083 dinfo->pitch = var->xres_virtual * 2;
1084 break;
1085 case 32:
1086 dinfo->visual = FB_VISUAL_TRUECOLOR;
1087 dinfo->pitch = var->xres_virtual * 4;
1088 break;
1089 }
1090
1091 /* Make sure the line length is a aligned correctly. */
1092 dinfo->pitch = ROUND_UP_TO(dinfo->pitch, STRIDE_ALIGNMENT);
1093
1094 if (FIXED_MODE(dinfo))
1095 dinfo->pitch = dinfo->initial_pitch;
1096
1097 dinfo->info->screen_base = (char __iomem *)dinfo->fb.virtual;
1098 dinfo->info->fix.line_length = dinfo->pitch;
1099 dinfo->info->fix.visual = dinfo->visual;
1100 }
1101
1102 /* fbops functions */
1103
1104 static int
1105 intelfb_get_fix(struct fb_fix_screeninfo *fix, struct fb_info *info)
1106 {
1107 struct intelfb_info *dinfo = GET_DINFO(info);
1108
1109 DBG_MSG("intelfb_get_fix\n");
1110
1111 memset(fix, 0, sizeof(*fix));
1112 strcpy(fix->id, dinfo->name);
1113 fix->smem_start = dinfo->fb.physical;
1114 fix->smem_len = dinfo->fb.size;
1115 fix->type = FB_TYPE_PACKED_PIXELS;
1116 fix->type_aux = 0;
1117 fix->visual = dinfo->visual;
1118 fix->xpanstep = 8;
1119 fix->ypanstep = 1;
1120 fix->ywrapstep = 0;
1121 fix->line_length = dinfo->pitch;
1122 fix->mmio_start = dinfo->mmio_base_phys;
1123 fix->mmio_len = INTEL_REG_SIZE;
1124 fix->accel = FB_ACCEL_I830;
1125 return 0;
1126 }
1127
1128 /***************************************************************
1129 * fbdev interface *
1130 ***************************************************************/
1131
1132 static int
1133 intelfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
1134 {
1135 int change_var = 0;
1136 struct fb_var_screeninfo v;
1137 struct intelfb_info *dinfo;
1138 static int first = 1;
1139
1140 DBG_MSG("intelfb_check_var: accel_flags is %d\n", var->accel_flags);
1141
1142 dinfo = GET_DINFO(info);
1143
1144 if (intelfbhw_validate_mode(dinfo, var) != 0)
1145 return -EINVAL;
1146
1147 v = *var;
1148
1149 /* Check for a supported bpp. */
1150 if (v.bits_per_pixel <= 8) {
1151 v.bits_per_pixel = 8;
1152 } else if (v.bits_per_pixel <= 16) {
1153 if (v.bits_per_pixel == 16)
1154 v.green.length = 6;
1155 v.bits_per_pixel = 16;
1156 } else if (v.bits_per_pixel <= 32) {
1157 v.bits_per_pixel = 32;
1158 } else
1159 return -EINVAL;
1160
1161 change_var = ((info->var.xres != var->xres) ||
1162 (info->var.yres != var->yres) ||
1163 (info->var.xres_virtual != var->xres_virtual) ||
1164 (info->var.yres_virtual != var->yres_virtual) ||
1165 (info->var.bits_per_pixel != var->bits_per_pixel) ||
1166 memcmp(&info->var.red, &var->red, sizeof(var->red)) ||
1167 memcmp(&info->var.green, &var->green,
1168 sizeof(var->green)) ||
1169 memcmp(&info->var.blue, &var->blue, sizeof(var->blue)));
1170
1171 if (FIXED_MODE(dinfo) &&
1172 (change_var ||
1173 var->yres_virtual > dinfo->initial_var.yres_virtual ||
1174 var->yres_virtual < dinfo->initial_var.yres ||
1175 var->xoffset || var->nonstd)) {
1176 if (first) {
1177 ERR_MSG("Changing the video mode is not supported.\n");
1178 first = 0;
1179 }
1180 return -EINVAL;
1181 }
1182
1183 switch (intelfb_var_to_depth(&v)) {
1184 case 8:
1185 v.red.offset = v.green.offset = v.blue.offset = 0;
1186 v.red.length = v.green.length = v.blue.length = 8;
1187 v.transp.offset = v.transp.length = 0;
1188 break;
1189 case 15:
1190 v.red.offset = 10;
1191 v.green.offset = 5;
1192 v.blue.offset = 0;
1193 v.red.length = v.green.length = v.blue.length = 5;
1194 v.transp.offset = v.transp.length = 0;
1195 break;
1196 case 16:
1197 v.red.offset = 11;
1198 v.green.offset = 5;
1199 v.blue.offset = 0;
1200 v.red.length = 5;
1201 v.green.length = 6;
1202 v.blue.length = 5;
1203 v.transp.offset = v.transp.length = 0;
1204 break;
1205 case 24:
1206 v.red.offset = 16;
1207 v.green.offset = 8;
1208 v.blue.offset = 0;
1209 v.red.length = v.green.length = v.blue.length = 8;
1210 v.transp.offset = v.transp.length = 0;
1211 break;
1212 case 32:
1213 v.red.offset = 16;
1214 v.green.offset = 8;
1215 v.blue.offset = 0;
1216 v.red.length = v.green.length = v.blue.length = 8;
1217 v.transp.offset = 24;
1218 v.transp.length = 8;
1219 break;
1220 }
1221
1222 if (v.xoffset < 0)
1223 v.xoffset = 0;
1224 if (v.yoffset < 0)
1225 v.yoffset = 0;
1226
1227 if (v.xoffset > v.xres_virtual - v.xres)
1228 v.xoffset = v.xres_virtual - v.xres;
1229 if (v.yoffset > v.yres_virtual - v.yres)
1230 v.yoffset = v.yres_virtual - v.yres;
1231
1232 v.red.msb_right = v.green.msb_right = v.blue.msb_right =
1233 v.transp.msb_right = 0;
1234
1235 *var = v;
1236
1237 return 0;
1238 }
1239
1240 static int
1241 intelfb_set_par(struct fb_info *info)
1242 {
1243 struct intelfb_hwstate *hw;
1244 struct intelfb_info *dinfo = GET_DINFO(info);
1245
1246 if (FIXED_MODE(dinfo)) {
1247 ERR_MSG("Changing the video mode is not supported.\n");
1248 return -EINVAL;
1249 }
1250
1251 hw = kmalloc(sizeof(*hw), GFP_ATOMIC);
1252 if (!hw)
1253 return -ENOMEM;
1254
1255 DBG_MSG("intelfb_set_par (%dx%d-%d)\n", info->var.xres,
1256 info->var.yres, info->var.bits_per_pixel);
1257
1258 intelfb_blank(FB_BLANK_POWERDOWN, info);
1259
1260 if (dinfo->accel)
1261 intelfbhw_2d_stop(dinfo);
1262
1263 memcpy(hw, &dinfo->save_state, sizeof(*hw));
1264 if (intelfbhw_mode_to_hw(dinfo, hw, &info->var))
1265 goto invalid_mode;
1266 if (intelfbhw_program_mode(dinfo, hw, 0))
1267 goto invalid_mode;
1268
1269 #if REGDUMP > 0
1270 intelfbhw_read_hw_state(dinfo, hw, 0);
1271 intelfbhw_print_hw_state(dinfo, hw);
1272 #endif
1273
1274 update_dinfo(dinfo, &info->var);
1275
1276 if (dinfo->accel)
1277 intelfbhw_2d_start(dinfo);
1278
1279 intelfb_pan_display(&info->var, info);
1280
1281 intelfb_blank(FB_BLANK_UNBLANK, info);
1282
1283 if (ACCEL(dinfo, info)) {
1284 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN |
1285 FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_FILLRECT |
1286 FBINFO_HWACCEL_IMAGEBLIT;
1287 } else {
1288 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
1289 }
1290 kfree(hw);
1291 return 0;
1292 invalid_mode:
1293 kfree(hw);
1294 return -EINVAL;
1295 }
1296
1297 static int
1298 intelfb_setcolreg(unsigned regno, unsigned red, unsigned green,
1299 unsigned blue, unsigned transp, struct fb_info *info)
1300 {
1301 struct intelfb_info *dinfo = GET_DINFO(info);
1302
1303 #if VERBOSE > 0
1304 DBG_MSG("intelfb_setcolreg: regno %d, depth %d\n", regno, dinfo->depth);
1305 #endif
1306
1307 if (regno > 255)
1308 return 1;
1309
1310 switch (dinfo->depth) {
1311 case 8:
1312 {
1313 red >>= 8;
1314 green >>= 8;
1315 blue >>= 8;
1316
1317 dinfo->palette[regno].red = red;
1318 dinfo->palette[regno].green = green;
1319 dinfo->palette[regno].blue = blue;
1320
1321 intelfbhw_setcolreg(dinfo, regno, red, green, blue,
1322 transp);
1323 }
1324 break;
1325 case 15:
1326 dinfo->pseudo_palette[regno] = ((red & 0xf800) >> 1) |
1327 ((green & 0xf800) >> 6) |
1328 ((blue & 0xf800) >> 11);
1329 break;
1330 case 16:
1331 dinfo->pseudo_palette[regno] = (red & 0xf800) |
1332 ((green & 0xfc00) >> 5) |
1333 ((blue & 0xf800) >> 11);
1334 break;
1335 case 24:
1336 dinfo->pseudo_palette[regno] = ((red & 0xff00) << 8) |
1337 (green & 0xff00) |
1338 ((blue & 0xff00) >> 8);
1339 break;
1340 }
1341 return 0;
1342 }
1343
1344 static int
1345 intelfb_blank(int blank, struct fb_info *info)
1346 {
1347 intelfbhw_do_blank(blank, info);
1348 return 0;
1349 }
1350
1351 static int
1352 intelfb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)
1353 {
1354 intelfbhw_pan_display(var, info);
1355 return 0;
1356 }
1357
1358 /* When/if we have our own ioctls. */
1359 static int
1360 intelfb_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
1361 unsigned long arg, struct fb_info *info)
1362 {
1363 int retval = 0;
1364
1365 return retval;
1366 }
1367
1368 static void
1369 intelfb_fillrect (struct fb_info *info, const struct fb_fillrect *rect)
1370 {
1371 struct intelfb_info *dinfo = GET_DINFO(info);
1372 u32 rop, color;
1373
1374 #if VERBOSE > 0
1375 DBG_MSG("intelfb_fillrect\n");
1376 #endif
1377
1378 if (!ACCEL(dinfo, info) || dinfo->depth == 4)
1379 return cfb_fillrect(info, rect);
1380
1381 if (rect->rop == ROP_COPY)
1382 rop = PAT_ROP_GXCOPY;
1383 else // ROP_XOR
1384 rop = PAT_ROP_GXXOR;
1385
1386 if (dinfo->depth != 8)
1387 color = dinfo->pseudo_palette[rect->color];
1388 else
1389 color = rect->color;
1390
1391 intelfbhw_do_fillrect(dinfo, rect->dx, rect->dy,
1392 rect->width, rect->height, color,
1393 dinfo->pitch, info->var.bits_per_pixel,
1394 rop);
1395 }
1396
1397 static void
1398 intelfb_copyarea(struct fb_info *info, const struct fb_copyarea *region)
1399 {
1400 struct intelfb_info *dinfo = GET_DINFO(info);
1401
1402 #if VERBOSE > 0
1403 DBG_MSG("intelfb_copyarea\n");
1404 #endif
1405
1406 if (!ACCEL(dinfo, info) || dinfo->depth == 4)
1407 return cfb_copyarea(info, region);
1408
1409 intelfbhw_do_bitblt(dinfo, region->sx, region->sy, region->dx,
1410 region->dy, region->width, region->height,
1411 dinfo->pitch, info->var.bits_per_pixel);
1412 }
1413
1414 static void
1415 intelfb_imageblit(struct fb_info *info, const struct fb_image *image)
1416 {
1417 struct intelfb_info *dinfo = GET_DINFO(info);
1418 u32 fgcolor, bgcolor;
1419
1420 #if VERBOSE > 0
1421 DBG_MSG("intelfb_imageblit\n");
1422 #endif
1423
1424 if (!ACCEL(dinfo, info) || dinfo->depth == 4
1425 || image->depth != 1)
1426 return cfb_imageblit(info, image);
1427
1428 if (dinfo->depth != 8) {
1429 fgcolor = dinfo->pseudo_palette[image->fg_color];
1430 bgcolor = dinfo->pseudo_palette[image->bg_color];
1431 } else {
1432 fgcolor = image->fg_color;
1433 bgcolor = image->bg_color;
1434 }
1435
1436 if (!intelfbhw_do_drawglyph(dinfo, fgcolor, bgcolor, image->width,
1437 image->height, image->data,
1438 image->dx, image->dy,
1439 dinfo->pitch, info->var.bits_per_pixel))
1440 return cfb_imageblit(info, image);
1441 }
1442
1443 static int
1444 intelfb_cursor(struct fb_info *info, struct fb_cursor *cursor)
1445 {
1446 struct intelfb_info *dinfo = GET_DINFO(info);
1447
1448 #if VERBOSE > 0
1449 DBG_MSG("intelfb_cursor\n");
1450 #endif
1451
1452 if (!dinfo->hwcursor)
1453 return soft_cursor(info, cursor);
1454
1455 intelfbhw_cursor_hide(dinfo);
1456
1457 /* If XFree killed the cursor - restore it */
1458 if (INREG(CURSOR_A_BASEADDR) != dinfo->cursor.offset << 12) {
1459 u32 fg, bg;
1460
1461 DBG_MSG("the cursor was killed - restore it !!\n");
1462 DBG_MSG("size %d, %d pos %d, %d\n",
1463 cursor->image.width, cursor->image.height,
1464 cursor->image.dx, cursor->image.dy);
1465
1466 intelfbhw_cursor_init(dinfo);
1467 intelfbhw_cursor_reset(dinfo);
1468 intelfbhw_cursor_setpos(dinfo, cursor->image.dx,
1469 cursor->image.dy);
1470
1471 if (dinfo->depth != 8) {
1472 fg =dinfo->pseudo_palette[cursor->image.fg_color];
1473 bg =dinfo->pseudo_palette[cursor->image.bg_color];
1474 } else {
1475 fg = cursor->image.fg_color;
1476 bg = cursor->image.bg_color;
1477 }
1478 intelfbhw_cursor_setcolor(dinfo, bg, fg);
1479 intelfbhw_cursor_load(dinfo, cursor->image.width,
1480 cursor->image.height,
1481 dinfo->cursor_src);
1482
1483 if (cursor->enable)
1484 intelfbhw_cursor_show(dinfo);
1485 return 0;
1486 }
1487
1488 if (cursor->set & FB_CUR_SETPOS) {
1489 u32 dx, dy;
1490
1491 dx = cursor->image.dx - info->var.xoffset;
1492 dy = cursor->image.dy - info->var.yoffset;
1493
1494 intelfbhw_cursor_setpos(dinfo, dx, dy);
1495 }
1496
1497 if (cursor->set & FB_CUR_SETSIZE) {
1498 if (cursor->image.width > 64 || cursor->image.height > 64)
1499 return -ENXIO;
1500
1501 intelfbhw_cursor_reset(dinfo);
1502 }
1503
1504 if (cursor->set & FB_CUR_SETCMAP) {
1505 u32 fg, bg;
1506
1507 if (dinfo->depth != 8) {
1508 fg = dinfo->pseudo_palette[cursor->image.fg_color];
1509 bg = dinfo->pseudo_palette[cursor->image.bg_color];
1510 } else {
1511 fg = cursor->image.fg_color;
1512 bg = cursor->image.bg_color;
1513 }
1514
1515 intelfbhw_cursor_setcolor(dinfo, bg, fg);
1516 }
1517
1518 if (cursor->set & (FB_CUR_SETSHAPE | FB_CUR_SETIMAGE)) {
1519 u32 s_pitch = (ROUND_UP_TO(cursor->image.width, 8) / 8);
1520 u32 size = s_pitch * cursor->image.height;
1521 u8 *dat = (u8 *) cursor->image.data;
1522 u8 *msk = (u8 *) cursor->mask;
1523 u8 src[64];
1524 u32 i;
1525
1526 if (cursor->image.depth != 1)
1527 return -ENXIO;
1528
1529 switch (cursor->rop) {
1530 case ROP_XOR:
1531 for (i = 0; i < size; i++)
1532 src[i] = dat[i] ^ msk[i];
1533 break;
1534 case ROP_COPY:
1535 default:
1536 for (i = 0; i < size; i++)
1537 src[i] = dat[i] & msk[i];
1538 break;
1539 }
1540
1541 /* save the bitmap to restore it when XFree will
1542 make the cursor dirty */
1543 memcpy(dinfo->cursor_src, src, size);
1544
1545 intelfbhw_cursor_load(dinfo, cursor->image.width,
1546 cursor->image.height, src);
1547 }
1548
1549 if (cursor->enable)
1550 intelfbhw_cursor_show(dinfo);
1551
1552 return 0;
1553 }
1554
1555 static int
1556 intelfb_sync(struct fb_info *info)
1557 {
1558 struct intelfb_info *dinfo = GET_DINFO(info);
1559
1560 #if VERBOSE > 0
1561 DBG_MSG("intelfb_sync\n");
1562 #endif
1563
1564 if (dinfo->ring_lockup)
1565 return 0;
1566
1567 intelfbhw_do_sync(dinfo);
1568 return 0;
1569 }
1570
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