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[PATCH] w1: Make w1 connector notifications depend on connector.
[linux-2.6/verdex.git] / drivers / video / intelfb / intelfbdrv.c
blob076fa56be192a3df28d06f7ad41903f8ba54ad86
1 /*
2 * intelfb
3 *
4 * Linux framebuffer driver for Intel(R) 830M/845G/852GM/855GM/865G/915G/915GM/
5 * 945G/945GM integrated graphics chips.
6 *
7 * Copyright © 2002, 2003 David Dawes <dawes@xfree86.org>
8 * 2004 Sylvain Meyer
9 * 2006 David Airlie
10 *
11 * This driver consists of two parts. The first part (intelfbdrv.c) provides
12 * the basic fbdev interfaces, is derived in part from the radeonfb and
13 * vesafb drivers, and is covered by the GPL. The second part (intelfbhw.c)
14 * provides the code to program the hardware. Most of it is derived from
15 * the i810/i830 XFree86 driver. The HW-specific code is covered here
16 * under a dual license (GPL and MIT/XFree86 license).
17 *
18 * Author: David Dawes
19 *
20 */
21
22 /* $DHD: intelfb/intelfbdrv.c,v 1.20 2003/06/27 15:17:40 dawes Exp $ */
23
24 /*
25 * Changes:
26 * 01/2003 - Initial driver (0.1.0), no mode switching, no acceleration.
27 * This initial version is a basic core that works a lot like
28 * the vesafb driver. It must be built-in to the kernel,
29 * and the initial video mode must be set with vga=XXX at
30 * boot time. (David Dawes)
31 *
32 * 01/2003 - Version 0.2.0: Mode switching added, colormap support
33 * implemented, Y panning, and soft screen blanking implemented.
34 * No acceleration yet. (David Dawes)
35 *
36 * 01/2003 - Version 0.3.0: fbcon acceleration support added. Module
37 * option handling added. (David Dawes)
38 *
39 * 01/2003 - Version 0.4.0: fbcon HW cursor support added. (David Dawes)
40 *
41 * 01/2003 - Version 0.4.1: Add auto-generation of built-in modes.
42 * (David Dawes)
43 *
44 * 02/2003 - Version 0.4.2: Add check for active non-CRT devices, and
45 * mode validation checks. (David Dawes)
46 *
47 * 02/2003 - Version 0.4.3: Check when the VC is in graphics mode so that
48 * acceleration is disabled while an XFree86 server is running.
49 * (David Dawes)
50 *
51 * 02/2003 - Version 0.4.4: Monitor DPMS support. (David Dawes)
52 *
53 * 02/2003 - Version 0.4.5: Basic XFree86 + fbdev working. (David Dawes)
54 *
55 * 02/2003 - Version 0.5.0: Modify to work with the 2.5.32 kernel as well
56 * as 2.4.x kernels. (David Dawes)
57 *
58 * 02/2003 - Version 0.6.0: Split out HW-specifics into a separate file.
59 * (David Dawes)
60 *
61 * 02/2003 - Version 0.7.0: Test on 852GM/855GM. Acceleration and HW
62 * cursor are disabled on this platform. (David Dawes)
63 *
64 * 02/2003 - Version 0.7.1: Test on 845G. Acceleration is disabled
65 * on this platform. (David Dawes)
66 *
67 * 02/2003 - Version 0.7.2: Test on 830M. Acceleration and HW
68 * cursor are disabled on this platform. (David Dawes)
69 *
70 * 02/2003 - Version 0.7.3: Fix 8-bit modes for mobile platforms
71 * (David Dawes)
72 *
73 * 02/2003 - Version 0.7.4: Add checks for FB and FBCON_HAS_CFB* configured
74 * in the kernel, and add mode bpp verification and default
75 * bpp selection based on which FBCON_HAS_CFB* are configured.
76 * (David Dawes)
77 *
78 * 02/2003 - Version 0.7.5: Add basic package/install scripts based on the
79 * DRI packaging scripts. (David Dawes)
80 *
81 * 04/2003 - Version 0.7.6: Fix typo that affects builds with SMP-enabled
82 * kernels. (David Dawes, reported by Anupam).
83 *
84 * 06/2003 - Version 0.7.7:
85 * Fix Makefile.kernel build problem (Tsutomu Yasuda).
86 * Fix mis-placed #endif (2.4.21 kernel).
87 *
88 * 09/2004 - Version 0.9.0 - by Sylvain Meyer
89 * Port to linux 2.6 kernel fbdev
90 * Fix HW accel and HW cursor on i845G
91 * Use of agpgart for fb memory reservation
92 * Add mtrr support
93 *
94 * 10/2004 - Version 0.9.1
95 * Use module_param instead of old MODULE_PARM
96 * Some cleanup
97 *
98 * 11/2004 - Version 0.9.2
99 * Add vram option to reserve more memory than stolen by BIOS
100 * Fix intelfbhw_pan_display typo
101 * Add __initdata annotations
102 *
103 * TODO:
104 *
105 *
106 * Wish List:
107 *
108 *
109 */
110
111 #include <linux/config.h>
112 #include <linux/module.h>
113 #include <linux/kernel.h>
114 #include <linux/errno.h>
115 #include <linux/string.h>
116 #include <linux/mm.h>
117 #include <linux/tty.h>
118 #include <linux/slab.h>
119 #include <linux/delay.h>
120 #include <linux/fb.h>
121 #include <linux/ioport.h>
122 #include <linux/init.h>
123 #include <linux/pci.h>
124 #include <linux/vmalloc.h>
125 #include <linux/pagemap.h>
126
127 #include <asm/io.h>
128
129 #ifdef CONFIG_MTRR
130 #include <asm/mtrr.h>
131 #endif
132
133 #include "intelfb.h"
134 #include "intelfbhw.h"
135 #include "../edid.h"
136
137 static void __devinit get_initial_mode(struct intelfb_info *dinfo);
138 static void update_dinfo(struct intelfb_info *dinfo,
139 struct fb_var_screeninfo *var);
140 static int intelfb_check_var(struct fb_var_screeninfo *var,
141 struct fb_info *info);
142 static int intelfb_set_par(struct fb_info *info);
143 static int intelfb_setcolreg(unsigned regno, unsigned red, unsigned green,
144 unsigned blue, unsigned transp,
145 struct fb_info *info);
146
147 static int intelfb_blank(int blank, struct fb_info *info);
148 static int intelfb_pan_display(struct fb_var_screeninfo *var,
149 struct fb_info *info);
150
151 static void intelfb_fillrect(struct fb_info *info,
152 const struct fb_fillrect *rect);
153 static void intelfb_copyarea(struct fb_info *info,
154 const struct fb_copyarea *region);
155 static void intelfb_imageblit(struct fb_info *info,
156 const struct fb_image *image);
157 static int intelfb_cursor(struct fb_info *info,
158 struct fb_cursor *cursor);
159
160 static int intelfb_sync(struct fb_info *info);
161
162 static int intelfb_ioctl(struct fb_info *info,
163 unsigned int cmd, unsigned long arg);
164
165 static int __devinit intelfb_pci_register(struct pci_dev *pdev,
166 const struct pci_device_id *ent);
167 static void __devexit intelfb_pci_unregister(struct pci_dev *pdev);
168 static int __devinit intelfb_set_fbinfo(struct intelfb_info *dinfo);
169
170 /*
171 * Limiting the class to PCI_CLASS_DISPLAY_VGA prevents function 1 of the
172 * mobile chipsets from being registered.
173 */
174 #if DETECT_VGA_CLASS_ONLY
175 #define INTELFB_CLASS_MASK ~0 << 8
176 #else
177 #define INTELFB_CLASS_MASK 0
178 #endif
179
180 static struct pci_device_id intelfb_pci_table[] __devinitdata = {
181 { 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 },
182 { 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 },
183 { 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 },
184 { 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 },
185 { 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 },
186 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_915GM, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_915GM },
187 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_945G, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_945G },
188 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_945GM, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_945GM },
189 { 0, }
190 };
191
192 /* Global data */
193 static int num_registered = 0;
194
195 /* fb ops */
196 static struct fb_ops intel_fb_ops = {
197 .owner = THIS_MODULE,
198 .fb_check_var = intelfb_check_var,
199 .fb_set_par = intelfb_set_par,
200 .fb_setcolreg = intelfb_setcolreg,
201 .fb_blank = intelfb_blank,
202 .fb_pan_display = intelfb_pan_display,
203 .fb_fillrect = intelfb_fillrect,
204 .fb_copyarea = intelfb_copyarea,
205 .fb_imageblit = intelfb_imageblit,
206 .fb_cursor = intelfb_cursor,
207 .fb_sync = intelfb_sync,
208 .fb_ioctl = intelfb_ioctl
209 };
210
211 /* PCI driver module table */
212 static struct pci_driver intelfb_driver = {
213 .name = "intelfb",
214 .id_table = intelfb_pci_table,
215 .probe = intelfb_pci_register,
216 .remove = __devexit_p(intelfb_pci_unregister)
217 };
218
219 /* Module description/parameters */
220 MODULE_AUTHOR("David Dawes <dawes@tungstengraphics.com>, "
221 "Sylvain Meyer <sylvain.meyer@worldonline.fr>");
222 MODULE_DESCRIPTION(
223 "Framebuffer driver for Intel(R) " SUPPORTED_CHIPSETS " chipsets");
224 MODULE_LICENSE("Dual BSD/GPL");
225 MODULE_DEVICE_TABLE(pci, intelfb_pci_table);
226
227 static int accel = 1;
228 static int vram = 4;
229 static int hwcursor = 0;
230 static int mtrr = 1;
231 static int fixed = 0;
232 static int noinit = 0;
233 static int noregister = 0;
234 static int probeonly = 0;
235 static int idonly = 0;
236 static int bailearly = 0;
237 static int voffset = 48;
238 static char *mode = NULL;
239
240 module_param(accel, bool, S_IRUGO);
241 MODULE_PARM_DESC(accel, "Enable hardware acceleration");
242 module_param(vram, int, S_IRUGO);
243 MODULE_PARM_DESC(vram, "System RAM to allocate to framebuffer in MiB");
244 module_param(voffset, int, S_IRUGO);
245 MODULE_PARM_DESC(voffset, "Offset of framebuffer in MiB");
246 module_param(hwcursor, bool, S_IRUGO);
247 MODULE_PARM_DESC(hwcursor, "Enable HW cursor");
248 module_param(mtrr, bool, S_IRUGO);
249 MODULE_PARM_DESC(mtrr, "Enable MTRR support");
250 module_param(fixed, bool, S_IRUGO);
251 MODULE_PARM_DESC(fixed, "Disable mode switching");
252 module_param(noinit, bool, 0);
253 MODULE_PARM_DESC(noinit, "Don't initialise graphics mode when loading");
254 module_param(noregister, bool, 0);
255 MODULE_PARM_DESC(noregister, "Don't register, just probe and exit (debug)");
256 module_param(probeonly, bool, 0);
257 MODULE_PARM_DESC(probeonly, "Do a minimal probe (debug)");
258 module_param(idonly, bool, 0);
259 MODULE_PARM_DESC(idonly, "Just identify without doing anything else (debug)");
260 module_param(bailearly, bool, 0);
261 MODULE_PARM_DESC(bailearly, "Bail out early, depending on value (debug)");
262 module_param(mode, charp, S_IRUGO);
263 MODULE_PARM_DESC(mode,
264 "Initial video mode \"<xres>x<yres>[-<depth>][@<refresh>]\"");
265
266 #ifndef MODULE
267 #define OPT_EQUAL(opt, name) (!strncmp(opt, name, strlen(name)))
268 #define OPT_INTVAL(opt, name) simple_strtoul(opt + strlen(name) + 1, NULL, 0)
269 #define OPT_STRVAL(opt, name) (opt + strlen(name))
270
271 static __inline__ char *
272 get_opt_string(const char *this_opt, const char *name)
273 {
274 const char *p;
275 int i;
276 char *ret;
277
278 p = OPT_STRVAL(this_opt, name);
279 i = 0;
280 while (p[i] && p[i] != ' ' && p[i] != ',')
281 i++;
282 ret = kmalloc(i + 1, GFP_KERNEL);
283 if (ret) {
284 strncpy(ret, p, i);
285 ret[i] = '\0';
286 }
287 return ret;
288 }
289
290 static __inline__ int
291 get_opt_int(const char *this_opt, const char *name, int *ret)
292 {
293 if (!ret)
294 return 0;
295
296 if (!OPT_EQUAL(this_opt, name))
297 return 0;
298
299 *ret = OPT_INTVAL(this_opt, name);
300 return 1;
301 }
302
303 static __inline__ int
304 get_opt_bool(const char *this_opt, const char *name, int *ret)
305 {
306 if (!ret)
307 return 0;
308
309 if (OPT_EQUAL(this_opt, name)) {
310 if (this_opt[strlen(name)] == '=')
311 *ret = simple_strtoul(this_opt + strlen(name) + 1,
312 NULL, 0);
313 else
314 *ret = 1;
315 } else {
316 if (OPT_EQUAL(this_opt, "no") && OPT_EQUAL(this_opt + 2, name))
317 *ret = 0;
318 else
319 return 0;
320 }
321 return 1;
322 }
323
324 static int __init
325 intelfb_setup(char *options)
326 {
327 char *this_opt;
328
329 DBG_MSG("intelfb_setup\n");
330
331 if (!options || !*options) {
332 DBG_MSG("no options\n");
333 return 0;
334 } else
335 DBG_MSG("options: %s\n", options);
336
337 /*
338 * These are the built-in options analogous to the module parameters
339 * defined above.
340 *
341 * The syntax is:
342 *
343 * video=intelfb:[mode][,<param>=<val>] ...
344 *
345 * e.g.,
346 *
347 * video=intelfb:1024x768-16@75,accel=0
348 */
349
350 while ((this_opt = strsep(&options, ","))) {
351 if (!*this_opt)
352 continue;
353 if (get_opt_bool(this_opt, "accel", &accel))
354 ;
355 else if (get_opt_int(this_opt, "vram", &vram))
356 ;
357 else if (get_opt_bool(this_opt, "hwcursor", &hwcursor))
358 ;
359 else if (get_opt_bool(this_opt, "mtrr", &mtrr))
360 ;
361 else if (get_opt_bool(this_opt, "fixed", &fixed))
362 ;
363 else if (get_opt_bool(this_opt, "init", &noinit))
364 noinit = !noinit;
365 else if (OPT_EQUAL(this_opt, "mode="))
366 mode = get_opt_string(this_opt, "mode=");
367 else
368 mode = this_opt;
369 }
370
371 return 0;
372 }
373
374 #endif
375
376 static int __init
377 intelfb_init(void)
378 {
379 #ifndef MODULE
380 char *option = NULL;
381 #endif
382
383 DBG_MSG("intelfb_init\n");
384
385 INF_MSG("Framebuffer driver for "
386 "Intel(R) " SUPPORTED_CHIPSETS " chipsets\n");
387 INF_MSG("Version " INTELFB_VERSION "\n");
388
389 if (idonly)
390 return -ENODEV;
391
392 #ifndef MODULE
393 if (fb_get_options("intelfb", &option))
394 return -ENODEV;
395 intelfb_setup(option);
396 #endif
397
398 return pci_register_driver(&intelfb_driver);
399 }
400
401 static void __exit
402 intelfb_exit(void)
403 {
404 DBG_MSG("intelfb_exit\n");
405 pci_unregister_driver(&intelfb_driver);
406 }
407
408 module_init(intelfb_init);
409 module_exit(intelfb_exit);
410
411 /***************************************************************
412 * mtrr support functions *
413 ***************************************************************/
414
415 #ifdef CONFIG_MTRR
416 static inline void __devinit set_mtrr(struct intelfb_info *dinfo)
417 {
418 dinfo->mtrr_reg = mtrr_add(dinfo->aperture.physical,
419 dinfo->aperture.size, MTRR_TYPE_WRCOMB, 1);
420 if (dinfo->mtrr_reg < 0) {
421 ERR_MSG("unable to set MTRR\n");
422 return;
423 }
424 dinfo->has_mtrr = 1;
425 }
426 static inline void unset_mtrr(struct intelfb_info *dinfo)
427 {
428 if (dinfo->has_mtrr)
429 mtrr_del(dinfo->mtrr_reg, dinfo->aperture.physical,
430 dinfo->aperture.size);
431 }
432 #else
433 #define set_mtrr(x) WRN_MSG("MTRR is disabled in the kernel\n")
434
435 #define unset_mtrr(x) do { } while (0)
436 #endif /* CONFIG_MTRR */
437
438 /***************************************************************
439 * driver init / cleanup *
440 ***************************************************************/
441
442 static void
443 cleanup(struct intelfb_info *dinfo)
444 {
445 DBG_MSG("cleanup\n");
446
447 if (!dinfo)
448 return;
449
450 fb_dealloc_cmap(&dinfo->info->cmap);
451 kfree(dinfo->info->pixmap.addr);
452
453 if (dinfo->registered)
454 unregister_framebuffer(dinfo->info);
455
456 unset_mtrr(dinfo);
457
458 if (dinfo->fbmem_gart && dinfo->gtt_fb_mem) {
459 agp_unbind_memory(dinfo->gtt_fb_mem);
460 agp_free_memory(dinfo->gtt_fb_mem);
461 }
462 if (dinfo->gtt_cursor_mem) {
463 agp_unbind_memory(dinfo->gtt_cursor_mem);
464 agp_free_memory(dinfo->gtt_cursor_mem);
465 }
466 if (dinfo->gtt_ring_mem) {
467 agp_unbind_memory(dinfo->gtt_ring_mem);
468 agp_free_memory(dinfo->gtt_ring_mem);
469 }
470
471 if (dinfo->mmio_base)
472 iounmap((void __iomem *)dinfo->mmio_base);
473 if (dinfo->aperture.virtual)
474 iounmap((void __iomem *)dinfo->aperture.virtual);
475
476 if (dinfo->flag & INTELFB_MMIO_ACQUIRED)
477 release_mem_region(dinfo->mmio_base_phys, INTEL_REG_SIZE);
478 if (dinfo->flag & INTELFB_FB_ACQUIRED)
479 release_mem_region(dinfo->aperture.physical,
480 dinfo->aperture.size);
481 framebuffer_release(dinfo->info);
482 }
483
484 #define bailout(dinfo) do { \
485 DBG_MSG("bailout\n"); \
486 cleanup(dinfo); \
487 INF_MSG("Not going to register framebuffer, exiting...\n"); \
488 return -ENODEV; \
489 } while (0)
490
491
492 static int __devinit
493 intelfb_pci_register(struct pci_dev *pdev, const struct pci_device_id *ent)
494 {
495 struct fb_info *info;
496 struct intelfb_info *dinfo;
497 int i, err, dvo;
498 int aperture_size, stolen_size;
499 struct agp_kern_info gtt_info;
500 int agp_memtype;
501 const char *s;
502 struct agp_bridge_data *bridge;
503 int aperture_bar = 0;
504 int mmio_bar = 1;
505 int offset;
506
507 DBG_MSG("intelfb_pci_register\n");
508
509 num_registered++;
510 if (num_registered != 1) {
511 ERR_MSG("Attempted to register %d devices "
512 "(should be only 1).\n", num_registered);
513 return -ENODEV;
514 }
515
516 info = framebuffer_alloc(sizeof(struct intelfb_info), &pdev->dev);
517 if (!info) {
518 ERR_MSG("Could not allocate memory for intelfb_info.\n");
519 return -ENODEV;
520 }
521 if (fb_alloc_cmap(&info->cmap, 256, 1) < 0) {
522 ERR_MSG("Could not allocate cmap for intelfb_info.\n");
523 goto err_out_cmap;
524 return -ENODEV;
525 }
526
527 dinfo = info->par;
528 dinfo->info = info;
529 dinfo->fbops = &intel_fb_ops;
530 dinfo->pdev = pdev;
531
532 /* Reserve pixmap space. */
533 info->pixmap.addr = kmalloc(64 * 1024, GFP_KERNEL);
534 if (info->pixmap.addr == NULL) {
535 ERR_MSG("Cannot reserve pixmap memory.\n");
536 goto err_out_pixmap;
537 }
538 memset(info->pixmap.addr, 0, 64 * 1024);
539
540 /* set early this option because it could be changed by tv encoder
541 driver */
542 dinfo->fixed_mode = fixed;
543
544 /* Enable device. */
545 if ((err = pci_enable_device(pdev))) {
546 ERR_MSG("Cannot enable device.\n");
547 cleanup(dinfo);
548 return -ENODEV;
549 }
550
551 /* Set base addresses. */
552 if ((ent->device == PCI_DEVICE_ID_INTEL_915G) ||
553 (ent->device == PCI_DEVICE_ID_INTEL_915GM) ||
554 (ent->device == PCI_DEVICE_ID_INTEL_945G) ||
555 (ent->device == PCI_DEVICE_ID_INTEL_945GM)) {
556 aperture_bar = 2;
557 mmio_bar = 0;
558 }
559 dinfo->aperture.physical = pci_resource_start(pdev, aperture_bar);
560 dinfo->aperture.size = pci_resource_len(pdev, aperture_bar);
561 dinfo->mmio_base_phys = pci_resource_start(pdev, mmio_bar);
562 DBG_MSG("fb aperture: 0x%llx/0x%llx, MMIO region: 0x%llx/0x%llx\n",
563 (unsigned long long)pci_resource_start(pdev, aperture_bar),
564 (unsigned long long)pci_resource_len(pdev, aperture_bar),
565 (unsigned long long)pci_resource_start(pdev, mmio_bar),
566 (unsigned long long)pci_resource_len(pdev, mmio_bar));
567
568 /* Reserve the fb and MMIO regions */
569 if (!request_mem_region(dinfo->aperture.physical, dinfo->aperture.size,
570 INTELFB_MODULE_NAME)) {
571 ERR_MSG("Cannot reserve FB region.\n");
572 cleanup(dinfo);
573 return -ENODEV;
574 }
575
576 dinfo->flag |= INTELFB_FB_ACQUIRED;
577
578 if (!request_mem_region(dinfo->mmio_base_phys,
579 INTEL_REG_SIZE,
580 INTELFB_MODULE_NAME)) {
581 ERR_MSG("Cannot reserve MMIO region.\n");
582 cleanup(dinfo);
583 return -ENODEV;
584 }
585
586 dinfo->flag |= INTELFB_MMIO_ACQUIRED;
587
588 /* Get the chipset info. */
589 dinfo->pci_chipset = pdev->device;
590
591 if (intelfbhw_get_chipset(pdev, dinfo)) {
592 cleanup(dinfo);
593 return -ENODEV;
594 }
595
596 if (intelfbhw_get_memory(pdev, &aperture_size,&stolen_size)) {
597 cleanup(dinfo);
598 return -ENODEV;
599 }
600
601 INF_MSG("%02x:%02x.%d: %s, aperture size %dMB, "
602 "stolen memory %dkB\n",
603 pdev->bus->number, PCI_SLOT(pdev->devfn),
604 PCI_FUNC(pdev->devfn), dinfo->name,
605 BtoMB(aperture_size), BtoKB(stolen_size));
606
607 /* Set these from the options. */
608 dinfo->accel = accel;
609 dinfo->hwcursor = hwcursor;
610
611 if (NOACCEL_CHIPSET(dinfo) && dinfo->accel == 1) {
612 INF_MSG("Acceleration is not supported for the %s chipset.\n",
613 dinfo->name);
614 dinfo->accel = 0;
615 }
616
617 /* Framebuffer parameters - Use all the stolen memory if >= vram */
618 if (ROUND_UP_TO_PAGE(stolen_size) >= MB(vram)) {
619 dinfo->fb.size = ROUND_UP_TO_PAGE(stolen_size);
620 dinfo->fbmem_gart = 0;
621 } else {
622 dinfo->fb.size = MB(vram);
623 dinfo->fbmem_gart = 1;
624 }
625
626 /* Allocate space for the ring buffer and HW cursor if enabled. */
627 if (dinfo->accel) {
628 dinfo->ring.size = RINGBUFFER_SIZE;
629 dinfo->ring_tail_mask = dinfo->ring.size - 1;
630 }
631 if (dinfo->hwcursor) {
632 dinfo->cursor.size = HW_CURSOR_SIZE;
633 }
634
635 /* Use agpgart to manage the GATT */
636 if (!(bridge = agp_backend_acquire(pdev))) {
637 ERR_MSG("cannot acquire agp\n");
638 cleanup(dinfo);
639 return -ENODEV;
640 }
641
642 /* get the current gatt info */
643 if (agp_copy_info(bridge, &gtt_info)) {
644 ERR_MSG("cannot get agp info\n");
645 agp_backend_release(bridge);
646 cleanup(dinfo);
647 return -ENODEV;
648 }
649
650 if (MB(voffset) < stolen_size)
651 offset = (stolen_size >> 12);
652 else
653 offset = ROUND_UP_TO_PAGE(MB(voffset))/GTT_PAGE_SIZE;
654
655 /* set the mem offsets - set them after the already used pages */
656 if (dinfo->accel) {
657 dinfo->ring.offset = offset + gtt_info.current_memory;
658 }
659 if (dinfo->hwcursor) {
660 dinfo->cursor.offset = offset +
661 + gtt_info.current_memory + (dinfo->ring.size >> 12);
662 }
663 if (dinfo->fbmem_gart) {
664 dinfo->fb.offset = offset +
665 + gtt_info.current_memory + (dinfo->ring.size >> 12)
666 + (dinfo->cursor.size >> 12);
667 }
668
669 /* Allocate memories (which aren't stolen) */
670 /* Map the fb and MMIO regions */
671 /* ioremap only up to the end of used aperture */
672 dinfo->aperture.virtual = (u8 __iomem *)ioremap_nocache
673 (dinfo->aperture.physical, ((offset + dinfo->fb.offset) << 12)
674 + dinfo->fb.size);
675 if (!dinfo->aperture.virtual) {
676 ERR_MSG("Cannot remap FB region.\n");
677 cleanup(dinfo);
678 return -ENODEV;
679 }
680
681 dinfo->mmio_base =
682 (u8 __iomem *)ioremap_nocache(dinfo->mmio_base_phys,
683 INTEL_REG_SIZE);
684 if (!dinfo->mmio_base) {
685 ERR_MSG("Cannot remap MMIO region.\n");
686 cleanup(dinfo);
687 return -ENODEV;
688 }
689
690 if (dinfo->accel) {
691 if (!(dinfo->gtt_ring_mem =
692 agp_allocate_memory(bridge, dinfo->ring.size >> 12,
693 AGP_NORMAL_MEMORY))) {
694 ERR_MSG("cannot allocate ring buffer memory\n");
695 agp_backend_release(bridge);
696 cleanup(dinfo);
697 return -ENOMEM;
698 }
699 if (agp_bind_memory(dinfo->gtt_ring_mem,
700 dinfo->ring.offset)) {
701 ERR_MSG("cannot bind ring buffer memory\n");
702 agp_backend_release(bridge);
703 cleanup(dinfo);
704 return -EBUSY;
705 }
706 dinfo->ring.physical = dinfo->aperture.physical
707 + (dinfo->ring.offset << 12);
708 dinfo->ring.virtual = dinfo->aperture.virtual
709 + (dinfo->ring.offset << 12);
710 dinfo->ring_head = dinfo->ring.virtual;
711 }
712 if (dinfo->hwcursor) {
713 agp_memtype = dinfo->mobile ? AGP_PHYSICAL_MEMORY
714 : AGP_NORMAL_MEMORY;
715 if (!(dinfo->gtt_cursor_mem =
716 agp_allocate_memory(bridge, dinfo->cursor.size >> 12,
717 agp_memtype))) {
718 ERR_MSG("cannot allocate cursor memory\n");
719 agp_backend_release(bridge);
720 cleanup(dinfo);
721 return -ENOMEM;
722 }
723 if (agp_bind_memory(dinfo->gtt_cursor_mem,
724 dinfo->cursor.offset)) {
725 ERR_MSG("cannot bind cursor memory\n");
726 agp_backend_release(bridge);
727 cleanup(dinfo);
728 return -EBUSY;
729 }
730 if (dinfo->mobile)
731 dinfo->cursor.physical
732 = dinfo->gtt_cursor_mem->physical;
733 else
734 dinfo->cursor.physical = dinfo->aperture.physical
735 + (dinfo->cursor.offset << 12);
736 dinfo->cursor.virtual = dinfo->aperture.virtual
737 + (dinfo->cursor.offset << 12);
738 }
739 if (dinfo->fbmem_gart) {
740 if (!(dinfo->gtt_fb_mem =
741 agp_allocate_memory(bridge, dinfo->fb.size >> 12,
742 AGP_NORMAL_MEMORY))) {
743 WRN_MSG("cannot allocate framebuffer memory - use "
744 "the stolen one\n");
745 dinfo->fbmem_gart = 0;
746 }
747 if (agp_bind_memory(dinfo->gtt_fb_mem,
748 dinfo->fb.offset)) {
749 WRN_MSG("cannot bind framebuffer memory - use "
750 "the stolen one\n");
751 dinfo->fbmem_gart = 0;
752 }
753 }
754
755 /* update framebuffer memory parameters */
756 if (!dinfo->fbmem_gart)
757 dinfo->fb.offset = 0; /* starts at offset 0 */
758 dinfo->fb.physical = dinfo->aperture.physical
759 + (dinfo->fb.offset << 12);
760 dinfo->fb.virtual = dinfo->aperture.virtual + (dinfo->fb.offset << 12);
761 dinfo->fb_start = dinfo->fb.offset << 12;
762
763 /* release agpgart */
764 agp_backend_release(bridge);
765
766 if (mtrr)
767 set_mtrr(dinfo);
768
769 DBG_MSG("fb: 0x%x(+ 0x%x)/0x%x (0x%x)\n",
770 dinfo->fb.physical, dinfo->fb.offset, dinfo->fb.size,
771 (u32 __iomem ) dinfo->fb.virtual);
772 DBG_MSG("MMIO: 0x%x/0x%x (0x%x)\n",
773 dinfo->mmio_base_phys, INTEL_REG_SIZE,
774 (u32 __iomem) dinfo->mmio_base);
775 DBG_MSG("ring buffer: 0x%x/0x%x (0x%x)\n",
776 dinfo->ring.physical, dinfo->ring.size,
777 (u32 __iomem ) dinfo->ring.virtual);
778 DBG_MSG("HW cursor: 0x%x/0x%x (0x%x) (offset 0x%x) (phys 0x%x)\n",
779 dinfo->cursor.physical, dinfo->cursor.size,
780 (u32 __iomem ) dinfo->cursor.virtual, dinfo->cursor.offset,
781 dinfo->cursor.physical);
782
783 DBG_MSG("options: vram = %d, accel = %d, hwcursor = %d, fixed = %d, "
784 "noinit = %d\n", vram, accel, hwcursor, fixed, noinit);
785 DBG_MSG("options: mode = \"%s\"\n", mode ? mode : "");
786
787 if (probeonly)
788 bailout(dinfo);
789
790 /*
791 * Check if the LVDS port or any DVO ports are enabled. If so,
792 * don't allow mode switching
793 */
794 dvo = intelfbhw_check_non_crt(dinfo);
795 if (dvo) {
796 dinfo->fixed_mode = 1;
797 WRN_MSG("Non-CRT device is enabled ( ");
798 i = 0;
799 while (dvo) {
800 if (dvo & 1) {
801 s = intelfbhw_dvo_to_string(1 << i);
802 if (s)
803 printk("%s ", s);
804 }
805 dvo >>= 1;
806 ++i;
807 }
808 printk("). Disabling mode switching.\n");
809 }
810
811 if (bailearly == 1)
812 bailout(dinfo);
813
814 if (FIXED_MODE(dinfo) && ORIG_VIDEO_ISVGA != VIDEO_TYPE_VLFB) {
815 ERR_MSG("Video mode must be programmed at boot time.\n");
816 cleanup(dinfo);
817 return -ENODEV;
818 }
819
820 if (bailearly == 2)
821 bailout(dinfo);
822
823 /* Initialise dinfo and related data. */
824 /* If an initial mode was programmed at boot time, get its details. */
825 if (ORIG_VIDEO_ISVGA == VIDEO_TYPE_VLFB)
826 get_initial_mode(dinfo);
827
828 if (bailearly == 3)
829 bailout(dinfo);
830
831 if (FIXED_MODE(dinfo)) {
832 /* remap fb address */
833 update_dinfo(dinfo, &dinfo->initial_var);
834 }
835
836 if (bailearly == 4)
837 bailout(dinfo);
838
839
840 if (intelfb_set_fbinfo(dinfo)) {
841 cleanup(dinfo);
842 return -ENODEV;
843 }
844
845 if (bailearly == 5)
846 bailout(dinfo);
847
848 if (bailearly == 6)
849 bailout(dinfo);
850
851 pci_set_drvdata(pdev, dinfo);
852
853 /* Save the initial register state. */
854 i = intelfbhw_read_hw_state(dinfo, &dinfo->save_state,
855 bailearly > 6 ? bailearly - 6 : 0);
856 if (i != 0) {
857 DBG_MSG("intelfbhw_read_hw_state returned %d\n", i);
858 bailout(dinfo);
859 }
860
861 intelfbhw_print_hw_state(dinfo, &dinfo->save_state);
862
863 if (bailearly == 18)
864 bailout(dinfo);
865
866 /* Cursor initialisation */
867 if (dinfo->hwcursor) {
868 intelfbhw_cursor_init(dinfo);
869 intelfbhw_cursor_reset(dinfo);
870 }
871
872 if (bailearly == 19)
873 bailout(dinfo);
874
875 /* 2d acceleration init */
876 if (dinfo->accel)
877 intelfbhw_2d_start(dinfo);
878
879 if (bailearly == 20)
880 bailout(dinfo);
881
882 if (noregister)
883 bailout(dinfo);
884
885 if (register_framebuffer(dinfo->info) < 0) {
886 ERR_MSG("Cannot register framebuffer.\n");
887 cleanup(dinfo);
888 return -ENODEV;
889 }
890
891 dinfo->registered = 1;
892
893 return 0;
894
895 err_out_pixmap:
896 fb_dealloc_cmap(&info->cmap);
897 err_out_cmap:
898 framebuffer_release(info);
899 return -ENODEV;
900 }
901
902 static void __devexit
903 intelfb_pci_unregister(struct pci_dev *pdev)
904 {
905 struct intelfb_info *dinfo = pci_get_drvdata(pdev);
906
907 DBG_MSG("intelfb_pci_unregister\n");
908
909 if (!dinfo)
910 return;
911
912 cleanup(dinfo);
913
914 pci_set_drvdata(pdev, NULL);
915 }
916
917 /***************************************************************
918 * helper functions *
919 ***************************************************************/
920
921 int __inline__
922 intelfb_var_to_depth(const struct fb_var_screeninfo *var)
923 {
924 DBG_MSG("intelfb_var_to_depth: bpp: %d, green.length is %d\n",
925 var->bits_per_pixel, var->green.length);
926
927 switch (var->bits_per_pixel) {
928 case 16:
929 return (var->green.length == 6) ? 16 : 15;
930 case 32:
931 return 24;
932 default:
933 return var->bits_per_pixel;
934 }
935 }
936
937
938 static __inline__ int
939 var_to_refresh(const struct fb_var_screeninfo *var)
940 {
941 int xtot = var->xres + var->left_margin + var->right_margin +
942 var->hsync_len;
943 int ytot = var->yres + var->upper_margin + var->lower_margin +
944 var->vsync_len;
945
946 return (1000000000 / var->pixclock * 1000 + 500) / xtot / ytot;
947 }
948
949 /***************************************************************
950 * Various intialisation functions *
951 ***************************************************************/
952
953 static void __devinit
954 get_initial_mode(struct intelfb_info *dinfo)
955 {
956 struct fb_var_screeninfo *var;
957 int xtot, ytot;
958
959 DBG_MSG("get_initial_mode\n");
960
961 dinfo->initial_vga = 1;
962 dinfo->initial_fb_base = screen_info.lfb_base;
963 dinfo->initial_video_ram = screen_info.lfb_size * KB(64);
964 dinfo->initial_pitch = screen_info.lfb_linelength;
965
966 var = &dinfo->initial_var;
967 memset(var, 0, sizeof(*var));
968 var->xres = screen_info.lfb_width;
969 var->yres = screen_info.lfb_height;
970 var->bits_per_pixel = screen_info.lfb_depth;
971 switch (screen_info.lfb_depth) {
972 case 15:
973 var->bits_per_pixel = 16;
974 break;
975 case 24:
976 var->bits_per_pixel = 32;
977 break;
978 }
979
980 DBG_MSG("Initial info: FB is 0x%x/0x%x (%d kByte)\n",
981 dinfo->initial_fb_base, dinfo->initial_video_ram,
982 BtoKB(dinfo->initial_video_ram));
983
984 DBG_MSG("Initial info: mode is %dx%d-%d (%d)\n",
985 var->xres, var->yres, var->bits_per_pixel,
986 dinfo->initial_pitch);
987
988 /* Dummy timing values (assume 60Hz) */
989 var->left_margin = (var->xres / 8) & 0xf8;
990 var->right_margin = 32;
991 var->upper_margin = 16;
992 var->lower_margin = 4;
993 var->hsync_len = (var->xres / 8) & 0xf8;
994 var->vsync_len = 4;
995
996 xtot = var->xres + var->left_margin +
997 var->right_margin + var->hsync_len;
998 ytot = var->yres + var->upper_margin +
999 var->lower_margin + var->vsync_len;
1000 var->pixclock = 10000000 / xtot * 1000 / ytot * 100 / 60;
1001
1002 var->height = -1;
1003 var->width = -1;
1004
1005 if (var->bits_per_pixel > 8) {
1006 var->red.offset = screen_info.red_pos;
1007 var->red.length = screen_info.red_size;
1008 var->green.offset = screen_info.green_pos;
1009 var->green.length = screen_info.green_size;
1010 var->blue.offset = screen_info.blue_pos;
1011 var->blue.length = screen_info.blue_size;
1012 var->transp.offset = screen_info.rsvd_pos;
1013 var->transp.length = screen_info.rsvd_size;
1014 } else {
1015 var->red.length = 8;
1016 var->green.length = 8;
1017 var->blue.length = 8;
1018 }
1019 }
1020
1021 static int __devinit
1022 intelfb_init_var(struct intelfb_info *dinfo)
1023 {
1024 struct fb_var_screeninfo *var;
1025 int msrc = 0;
1026
1027 DBG_MSG("intelfb_init_var\n");
1028
1029 var = &dinfo->info->var;
1030 if (FIXED_MODE(dinfo)) {
1031 memcpy(var, &dinfo->initial_var,
1032 sizeof(struct fb_var_screeninfo));
1033 msrc = 5;
1034 } else {
1035 const u8 *edid_s = fb_firmware_edid(&dinfo->pdev->dev);
1036 u8 *edid_d = NULL;
1037
1038 if (edid_s) {
1039 edid_d = kmalloc(EDID_LENGTH, GFP_KERNEL);
1040
1041 if (edid_d) {
1042 memcpy(edid_d, edid_s, EDID_LENGTH);
1043 fb_edid_to_monspecs(edid_d,
1044 &dinfo->info->monspecs);
1045 kfree(edid_d);
1046 }
1047 }
1048
1049 if (mode) {
1050 printk("intelfb: Looking for mode in private "
1051 "database\n");
1052 msrc = fb_find_mode(var, dinfo->info, mode,
1053 dinfo->info->monspecs.modedb,
1054 dinfo->info->monspecs.modedb_len,
1055 NULL, 0);
1056
1057 if (msrc && msrc > 1) {
1058 printk("intelfb: No mode in private database, "
1059 "intelfb: looking for mode in global "
1060 "database ");
1061 msrc = fb_find_mode(var, dinfo->info, mode,
1062 NULL, 0, NULL, 0);
1063
1064 if (msrc)
1065 msrc |= 8;
1066 }
1067
1068 }
1069
1070 if (!msrc) {
1071 msrc = fb_find_mode(var, dinfo->info, PREFERRED_MODE,
1072 NULL, 0, NULL, 0);
1073 }
1074 }
1075
1076 if (!msrc) {
1077 ERR_MSG("Cannot find a suitable video mode.\n");
1078 return 1;
1079 }
1080
1081 INF_MSG("Initial video mode is %dx%d-%d@%d.\n", var->xres, var->yres,
1082 var->bits_per_pixel, var_to_refresh(var));
1083
1084 DBG_MSG("Initial video mode is from %d.\n", msrc);
1085
1086 #if ALLOCATE_FOR_PANNING
1087 /* Allow use of half of the video ram for panning */
1088 var->xres_virtual = var->xres;
1089 var->yres_virtual =
1090 dinfo->fb.size / 2 / (var->bits_per_pixel * var->xres);
1091 if (var->yres_virtual < var->yres)
1092 var->yres_virtual = var->yres;
1093 #else
1094 var->yres_virtual = var->yres;
1095 #endif
1096
1097 if (dinfo->accel)
1098 var->accel_flags |= FB_ACCELF_TEXT;
1099 else
1100 var->accel_flags &= ~FB_ACCELF_TEXT;
1101
1102 return 0;
1103 }
1104
1105 static int __devinit
1106 intelfb_set_fbinfo(struct intelfb_info *dinfo)
1107 {
1108 struct fb_info *info = dinfo->info;
1109
1110 DBG_MSG("intelfb_set_fbinfo\n");
1111
1112 info->flags = FBINFO_FLAG_DEFAULT;
1113 info->fbops = &intel_fb_ops;
1114 info->pseudo_palette = dinfo->pseudo_palette;
1115
1116 info->pixmap.size = 64*1024;
1117 info->pixmap.buf_align = 8;
1118 info->pixmap.access_align = 32;
1119 info->pixmap.flags = FB_PIXMAP_SYSTEM;
1120
1121 if (intelfb_init_var(dinfo))
1122 return 1;
1123
1124 info->pixmap.scan_align = 1;
1125 strcpy(info->fix.id, dinfo->name);
1126 info->fix.smem_start = dinfo->fb.physical;
1127 info->fix.smem_len = dinfo->fb.size;
1128 info->fix.type = FB_TYPE_PACKED_PIXELS;
1129 info->fix.type_aux = 0;
1130 info->fix.xpanstep = 8;
1131 info->fix.ypanstep = 1;
1132 info->fix.ywrapstep = 0;
1133 info->fix.mmio_start = dinfo->mmio_base_phys;
1134 info->fix.mmio_len = INTEL_REG_SIZE;
1135 info->fix.accel = FB_ACCEL_I830;
1136 update_dinfo(dinfo, &info->var);
1137
1138 return 0;
1139 }
1140
1141 /* Update dinfo to match the active video mode. */
1142 static void
1143 update_dinfo(struct intelfb_info *dinfo, struct fb_var_screeninfo *var)
1144 {
1145 DBG_MSG("update_dinfo\n");
1146
1147 dinfo->bpp = var->bits_per_pixel;
1148 dinfo->depth = intelfb_var_to_depth(var);
1149 dinfo->xres = var->xres;
1150 dinfo->yres = var->xres;
1151 dinfo->pixclock = var->pixclock;
1152
1153 dinfo->info->fix.visual = dinfo->visual;
1154 dinfo->info->fix.line_length = dinfo->pitch;
1155
1156 switch (dinfo->bpp) {
1157 case 8:
1158 dinfo->visual = FB_VISUAL_PSEUDOCOLOR;
1159 dinfo->pitch = var->xres_virtual;
1160 break;
1161 case 16:
1162 dinfo->visual = FB_VISUAL_TRUECOLOR;
1163 dinfo->pitch = var->xres_virtual * 2;
1164 break;
1165 case 32:
1166 dinfo->visual = FB_VISUAL_TRUECOLOR;
1167 dinfo->pitch = var->xres_virtual * 4;
1168 break;
1169 }
1170
1171 /* Make sure the line length is a aligned correctly. */
1172 if (IS_I9XX(dinfo))
1173 dinfo->pitch = ROUND_UP_TO(dinfo->pitch, STRIDE_ALIGNMENT_I9XX);
1174 else
1175 dinfo->pitch = ROUND_UP_TO(dinfo->pitch, STRIDE_ALIGNMENT);
1176
1177 if (FIXED_MODE(dinfo))
1178 dinfo->pitch = dinfo->initial_pitch;
1179
1180 dinfo->info->screen_base = (char __iomem *)dinfo->fb.virtual;
1181 dinfo->info->fix.line_length = dinfo->pitch;
1182 dinfo->info->fix.visual = dinfo->visual;
1183 }
1184
1185 /* fbops functions */
1186
1187 /***************************************************************
1188 * fbdev interface *
1189 ***************************************************************/
1190
1191 static int
1192 intelfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
1193 {
1194 int change_var = 0;
1195 struct fb_var_screeninfo v;
1196 struct intelfb_info *dinfo;
1197 static int first = 1;
1198 int i;
1199 /* Good pitches to allow tiling. Don't care about pitches < 1024. */
1200 static const int pitches[] = {
1201 128 * 8,
1202 128 * 16,
1203 128 * 32,
1204 128 * 64,
1205 0
1206 };
1207
1208 DBG_MSG("intelfb_check_var: accel_flags is %d\n", var->accel_flags);
1209
1210 dinfo = GET_DINFO(info);
1211
1212 /* update the pitch */
1213 if (intelfbhw_validate_mode(dinfo, var) != 0)
1214 return -EINVAL;
1215
1216 v = *var;
1217
1218 for (i = 0; pitches[i] != 0; i++) {
1219 if (pitches[i] >= v.xres_virtual) {
1220 v.xres_virtual = pitches[i];
1221 break;
1222 }
1223 }
1224
1225 /* Check for a supported bpp. */
1226 if (v.bits_per_pixel <= 8) {
1227 v.bits_per_pixel = 8;
1228 } else if (v.bits_per_pixel <= 16) {
1229 if (v.bits_per_pixel == 16)
1230 v.green.length = 6;
1231 v.bits_per_pixel = 16;
1232 } else if (v.bits_per_pixel <= 32) {
1233 v.bits_per_pixel = 32;
1234 } else
1235 return -EINVAL;
1236
1237 change_var = ((info->var.xres != var->xres) ||
1238 (info->var.yres != var->yres) ||
1239 (info->var.xres_virtual != var->xres_virtual) ||
1240 (info->var.yres_virtual != var->yres_virtual) ||
1241 (info->var.bits_per_pixel != var->bits_per_pixel) ||
1242 memcmp(&info->var.red, &var->red, sizeof(var->red)) ||
1243 memcmp(&info->var.green, &var->green,
1244 sizeof(var->green)) ||
1245 memcmp(&info->var.blue, &var->blue, sizeof(var->blue)));
1246
1247 if (FIXED_MODE(dinfo) &&
1248 (change_var ||
1249 var->yres_virtual > dinfo->initial_var.yres_virtual ||
1250 var->yres_virtual < dinfo->initial_var.yres ||
1251 var->xoffset || var->nonstd)) {
1252 if (first) {
1253 ERR_MSG("Changing the video mode is not supported.\n");
1254 first = 0;
1255 }
1256 return -EINVAL;
1257 }
1258
1259 switch (intelfb_var_to_depth(&v)) {
1260 case 8:
1261 v.red.offset = v.green.offset = v.blue.offset = 0;
1262 v.red.length = v.green.length = v.blue.length = 8;
1263 v.transp.offset = v.transp.length = 0;
1264 break;
1265 case 15:
1266 v.red.offset = 10;
1267 v.green.offset = 5;
1268 v.blue.offset = 0;
1269 v.red.length = v.green.length = v.blue.length = 5;
1270 v.transp.offset = v.transp.length = 0;
1271 break;
1272 case 16:
1273 v.red.offset = 11;
1274 v.green.offset = 5;
1275 v.blue.offset = 0;
1276 v.red.length = 5;
1277 v.green.length = 6;
1278 v.blue.length = 5;
1279 v.transp.offset = v.transp.length = 0;
1280 break;
1281 case 24:
1282 v.red.offset = 16;
1283 v.green.offset = 8;
1284 v.blue.offset = 0;
1285 v.red.length = v.green.length = v.blue.length = 8;
1286 v.transp.offset = v.transp.length = 0;
1287 break;
1288 case 32:
1289 v.red.offset = 16;
1290 v.green.offset = 8;
1291 v.blue.offset = 0;
1292 v.red.length = v.green.length = v.blue.length = 8;
1293 v.transp.offset = 24;
1294 v.transp.length = 8;
1295 break;
1296 }
1297
1298 if (v.xoffset < 0)
1299 v.xoffset = 0;
1300 if (v.yoffset < 0)
1301 v.yoffset = 0;
1302
1303 if (v.xoffset > v.xres_virtual - v.xres)
1304 v.xoffset = v.xres_virtual - v.xres;
1305 if (v.yoffset > v.yres_virtual - v.yres)
1306 v.yoffset = v.yres_virtual - v.yres;
1307
1308 v.red.msb_right = v.green.msb_right = v.blue.msb_right =
1309 v.transp.msb_right = 0;
1310
1311 *var = v;
1312
1313 return 0;
1314 }
1315
1316 static int
1317 intelfb_set_par(struct fb_info *info)
1318 {
1319 struct intelfb_hwstate *hw;
1320 struct intelfb_info *dinfo = GET_DINFO(info);
1321
1322 if (FIXED_MODE(dinfo)) {
1323 ERR_MSG("Changing the video mode is not supported.\n");
1324 return -EINVAL;
1325 }
1326
1327 hw = kmalloc(sizeof(*hw), GFP_ATOMIC);
1328 if (!hw)
1329 return -ENOMEM;
1330
1331 DBG_MSG("intelfb_set_par (%dx%d-%d)\n", info->var.xres,
1332 info->var.yres, info->var.bits_per_pixel);
1333
1334 intelfb_blank(FB_BLANK_POWERDOWN, info);
1335
1336 if (ACCEL(dinfo, info))
1337 intelfbhw_2d_stop(dinfo);
1338
1339 memcpy(hw, &dinfo->save_state, sizeof(*hw));
1340 if (intelfbhw_mode_to_hw(dinfo, hw, &info->var))
1341 goto invalid_mode;
1342 if (intelfbhw_program_mode(dinfo, hw, 0))
1343 goto invalid_mode;
1344
1345 #if REGDUMP > 0
1346 intelfbhw_read_hw_state(dinfo, hw, 0);
1347 intelfbhw_print_hw_state(dinfo, hw);
1348 #endif
1349
1350 update_dinfo(dinfo, &info->var);
1351
1352 if (ACCEL(dinfo, info))
1353 intelfbhw_2d_start(dinfo);
1354
1355 intelfb_pan_display(&info->var, info);
1356
1357 intelfb_blank(FB_BLANK_UNBLANK, info);
1358
1359 if (ACCEL(dinfo, info)) {
1360 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN |
1361 FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_FILLRECT |
1362 FBINFO_HWACCEL_IMAGEBLIT;
1363 } else {
1364 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
1365 }
1366 kfree(hw);
1367 return 0;
1368 invalid_mode:
1369 kfree(hw);
1370 return -EINVAL;
1371 }
1372
1373 static int
1374 intelfb_setcolreg(unsigned regno, unsigned red, unsigned green,
1375 unsigned blue, unsigned transp, struct fb_info *info)
1376 {
1377 struct intelfb_info *dinfo = GET_DINFO(info);
1378
1379 #if VERBOSE > 0
1380 DBG_MSG("intelfb_setcolreg: regno %d, depth %d\n", regno, dinfo->depth);
1381 #endif
1382
1383 if (regno > 255)
1384 return 1;
1385
1386 if (dinfo->depth == 8) {
1387 red >>= 8;
1388 green >>= 8;
1389 blue >>= 8;
1390
1391 intelfbhw_setcolreg(dinfo, regno, red, green, blue,
1392 transp);
1393 }
1394
1395 if (regno < 16) {
1396 switch (dinfo->depth) {
1397 case 15:
1398 dinfo->pseudo_palette[regno] = ((red & 0xf800) >> 1) |
1399 ((green & 0xf800) >> 6) |
1400 ((blue & 0xf800) >> 11);
1401 break;
1402 case 16:
1403 dinfo->pseudo_palette[regno] = (red & 0xf800) |
1404 ((green & 0xfc00) >> 5) |
1405 ((blue & 0xf800) >> 11);
1406 break;
1407 case 24:
1408 dinfo->pseudo_palette[regno] = ((red & 0xff00) << 8) |
1409 (green & 0xff00) |
1410 ((blue & 0xff00) >> 8);
1411 break;
1412 }
1413 }
1414
1415 return 0;
1416 }
1417
1418 static int
1419 intelfb_blank(int blank, struct fb_info *info)
1420 {
1421 intelfbhw_do_blank(blank, info);
1422 return 0;
1423 }
1424
1425 static int
1426 intelfb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)
1427 {
1428 intelfbhw_pan_display(var, info);
1429 return 0;
1430 }
1431
1432 /* When/if we have our own ioctls. */
1433 static int
1434 intelfb_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg)
1435 {
1436 int retval = 0;
1437
1438 return retval;
1439 }
1440
1441 static void
1442 intelfb_fillrect (struct fb_info *info, const struct fb_fillrect *rect)
1443 {
1444 struct intelfb_info *dinfo = GET_DINFO(info);
1445 u32 rop, color;
1446
1447 #if VERBOSE > 0
1448 DBG_MSG("intelfb_fillrect\n");
1449 #endif
1450
1451 if (!ACCEL(dinfo, info) || dinfo->depth == 4)
1452 return cfb_fillrect(info, rect);
1453
1454 if (rect->rop == ROP_COPY)
1455 rop = PAT_ROP_GXCOPY;
1456 else // ROP_XOR
1457 rop = PAT_ROP_GXXOR;
1458
1459 if (dinfo->depth != 8)
1460 color = dinfo->pseudo_palette[rect->color];
1461 else
1462 color = rect->color;
1463
1464 intelfbhw_do_fillrect(dinfo, rect->dx, rect->dy,
1465 rect->width, rect->height, color,
1466 dinfo->pitch, info->var.bits_per_pixel,
1467 rop);
1468 }
1469
1470 static void
1471 intelfb_copyarea(struct fb_info *info, const struct fb_copyarea *region)
1472 {
1473 struct intelfb_info *dinfo = GET_DINFO(info);
1474
1475 #if VERBOSE > 0
1476 DBG_MSG("intelfb_copyarea\n");
1477 #endif
1478
1479 if (!ACCEL(dinfo, info) || dinfo->depth == 4)
1480 return cfb_copyarea(info, region);
1481
1482 intelfbhw_do_bitblt(dinfo, region->sx, region->sy, region->dx,
1483 region->dy, region->width, region->height,
1484 dinfo->pitch, info->var.bits_per_pixel);
1485 }
1486
1487 static void
1488 intelfb_imageblit(struct fb_info *info, const struct fb_image *image)
1489 {
1490 struct intelfb_info *dinfo = GET_DINFO(info);
1491 u32 fgcolor, bgcolor;
1492
1493 #if VERBOSE > 0
1494 DBG_MSG("intelfb_imageblit\n");
1495 #endif
1496
1497 if (!ACCEL(dinfo, info) || dinfo->depth == 4
1498 || image->depth != 1)
1499 return cfb_imageblit(info, image);
1500
1501 if (dinfo->depth != 8) {
1502 fgcolor = dinfo->pseudo_palette[image->fg_color];
1503 bgcolor = dinfo->pseudo_palette[image->bg_color];
1504 } else {
1505 fgcolor = image->fg_color;
1506 bgcolor = image->bg_color;
1507 }
1508
1509 if (!intelfbhw_do_drawglyph(dinfo, fgcolor, bgcolor, image->width,
1510 image->height, image->data,
1511 image->dx, image->dy,
1512 dinfo->pitch, info->var.bits_per_pixel))
1513 return cfb_imageblit(info, image);
1514 }
1515
1516 static int
1517 intelfb_cursor(struct fb_info *info, struct fb_cursor *cursor)
1518 {
1519 struct intelfb_info *dinfo = GET_DINFO(info);
1520 u32 physical;
1521 #if VERBOSE > 0
1522 DBG_MSG("intelfb_cursor\n");
1523 #endif
1524
1525 if (!dinfo->hwcursor)
1526 return -ENODEV;
1527
1528 intelfbhw_cursor_hide(dinfo);
1529
1530 /* If XFree killed the cursor - restore it */
1531 physical = (dinfo->mobile || IS_I9XX(dinfo)) ? dinfo->cursor.physical :
1532 (dinfo->cursor.offset << 12);
1533
1534 if (INREG(CURSOR_A_BASEADDR) != physical) {
1535 u32 fg, bg;
1536
1537 DBG_MSG("the cursor was killed - restore it !!\n");
1538 DBG_MSG("size %d, %d pos %d, %d\n",
1539 cursor->image.width, cursor->image.height,
1540 cursor->image.dx, cursor->image.dy);
1541
1542 intelfbhw_cursor_init(dinfo);
1543 intelfbhw_cursor_reset(dinfo);
1544 intelfbhw_cursor_setpos(dinfo, cursor->image.dx,
1545 cursor->image.dy);
1546
1547 if (dinfo->depth != 8) {
1548 fg =dinfo->pseudo_palette[cursor->image.fg_color];
1549 bg =dinfo->pseudo_palette[cursor->image.bg_color];
1550 } else {
1551 fg = cursor->image.fg_color;
1552 bg = cursor->image.bg_color;
1553 }
1554 intelfbhw_cursor_setcolor(dinfo, bg, fg);
1555 intelfbhw_cursor_load(dinfo, cursor->image.width,
1556 cursor->image.height,
1557 dinfo->cursor_src);
1558
1559 if (cursor->enable)
1560 intelfbhw_cursor_show(dinfo);
1561 return 0;
1562 }
1563
1564 if (cursor->set & FB_CUR_SETPOS) {
1565 u32 dx, dy;
1566
1567 dx = cursor->image.dx - info->var.xoffset;
1568 dy = cursor->image.dy - info->var.yoffset;
1569
1570 intelfbhw_cursor_setpos(dinfo, dx, dy);
1571 }
1572
1573 if (cursor->set & FB_CUR_SETSIZE) {
1574 if (cursor->image.width > 64 || cursor->image.height > 64)
1575 return -ENXIO;
1576
1577 intelfbhw_cursor_reset(dinfo);
1578 }
1579
1580 if (cursor->set & FB_CUR_SETCMAP) {
1581 u32 fg, bg;
1582
1583 if (dinfo->depth != 8) {
1584 fg = dinfo->pseudo_palette[cursor->image.fg_color];
1585 bg = dinfo->pseudo_palette[cursor->image.bg_color];
1586 } else {
1587 fg = cursor->image.fg_color;
1588 bg = cursor->image.bg_color;
1589 }
1590
1591 intelfbhw_cursor_setcolor(dinfo, bg, fg);
1592 }
1593
1594 if (cursor->set & (FB_CUR_SETSHAPE | FB_CUR_SETIMAGE)) {
1595 u32 s_pitch = (ROUND_UP_TO(cursor->image.width, 8) / 8);
1596 u32 size = s_pitch * cursor->image.height;
1597 u8 *dat = (u8 *) cursor->image.data;
1598 u8 *msk = (u8 *) cursor->mask;
1599 u8 src[64];
1600 u32 i;
1601
1602 if (cursor->image.depth != 1)
1603 return -ENXIO;
1604
1605 switch (cursor->rop) {
1606 case ROP_XOR:
1607 for (i = 0; i < size; i++)
1608 src[i] = dat[i] ^ msk[i];
1609 break;
1610 case ROP_COPY:
1611 default:
1612 for (i = 0; i < size; i++)
1613 src[i] = dat[i] & msk[i];
1614 break;
1615 }
1616
1617 /* save the bitmap to restore it when XFree will
1618 make the cursor dirty */
1619 memcpy(dinfo->cursor_src, src, size);
1620
1621 intelfbhw_cursor_load(dinfo, cursor->image.width,
1622 cursor->image.height, src);
1623 }
1624
1625 if (cursor->enable)
1626 intelfbhw_cursor_show(dinfo);
1627
1628 return 0;
1629 }
1630
1631 static int
1632 intelfb_sync(struct fb_info *info)
1633 {
1634 struct intelfb_info *dinfo = GET_DINFO(info);
1635
1636 #if VERBOSE > 0
1637 DBG_MSG("intelfb_sync\n");
1638 #endif
1639
1640 if (dinfo->ring_lockup)
1641 return 0;
1642
1643 intelfbhw_do_sync(dinfo);
1644 return 0;
1645 }
1646
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