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[TG3]: Set minimal hw interrupt mitigation.
[linux-2.6/verdex.git] / drivers / video / intelfb / intelfbdrv.c
blob549e229392604359f46ed629d916b4ea89674226
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 "intelfbhw.h"
139
140 static void __devinit get_initial_mode(struct intelfb_info *dinfo);
141 static void update_dinfo(struct intelfb_info *dinfo,
142 struct fb_var_screeninfo *var);
143 static int intelfb_get_fix(struct fb_fix_screeninfo *fix,
144 struct fb_info *info);
145
146 static int intelfb_check_var(struct fb_var_screeninfo *var,
147 struct fb_info *info);
148 static int intelfb_set_par(struct fb_info *info);
149 static int intelfb_setcolreg(unsigned regno, unsigned red, unsigned green,
150 unsigned blue, unsigned transp,
151 struct fb_info *info);
152
153 static int intelfb_blank(int blank, struct fb_info *info);
154 static int intelfb_pan_display(struct fb_var_screeninfo *var,
155 struct fb_info *info);
156
157 static void intelfb_fillrect(struct fb_info *info,
158 const struct fb_fillrect *rect);
159 static void intelfb_copyarea(struct fb_info *info,
160 const struct fb_copyarea *region);
161 static void intelfb_imageblit(struct fb_info *info,
162 const struct fb_image *image);
163 static int intelfb_cursor(struct fb_info *info,
164 struct fb_cursor *cursor);
165
166 static int intelfb_sync(struct fb_info *info);
167
168 static int intelfb_ioctl(struct inode *inode, struct file *file,
169 unsigned int cmd, unsigned long arg,
170 struct fb_info *info);
171
172 static int __devinit intelfb_pci_register(struct pci_dev *pdev,
173 const struct pci_device_id *ent);
174 static void __devexit intelfb_pci_unregister(struct pci_dev *pdev);
175 static int __devinit intelfb_set_fbinfo(struct intelfb_info *dinfo);
176
177 /*
178 * Limiting the class to PCI_CLASS_DISPLAY_VGA prevents function 1 of the
179 * mobile chipsets from being registered.
180 */
181 #if DETECT_VGA_CLASS_ONLY
182 #define INTELFB_CLASS_MASK ~0 << 8
183 #else
184 #define INTELFB_CLASS_MASK 0
185 #endif
186
187 static struct pci_device_id intelfb_pci_table[] __devinitdata = {
188 { 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 },
189 { 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 },
190 { 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 },
191 { 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 },
192 { 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 },
193 { 0, }
194 };
195
196 /* Global data */
197 static int num_registered = 0;
198
199 /* fb ops */
200 static struct fb_ops intel_fb_ops = {
201 .owner = THIS_MODULE,
202 .fb_check_var = intelfb_check_var,
203 .fb_set_par = intelfb_set_par,
204 .fb_setcolreg = intelfb_setcolreg,
205 .fb_blank = intelfb_blank,
206 .fb_pan_display = intelfb_pan_display,
207 .fb_fillrect = intelfb_fillrect,
208 .fb_copyarea = intelfb_copyarea,
209 .fb_imageblit = intelfb_imageblit,
210 .fb_cursor = intelfb_cursor,
211 .fb_sync = intelfb_sync,
212 .fb_ioctl = intelfb_ioctl
213 };
214
215 /* PCI driver module table */
216 static struct pci_driver intelfb_driver = {
217 .name = "Intel(R) " SUPPORTED_CHIPSETS " Framebuffer Driver",
218 .id_table = intelfb_pci_table,
219 .probe = intelfb_pci_register,
220 .remove = __devexit_p(intelfb_pci_unregister)
221 };
222
223 /* Module description/parameters */
224 MODULE_AUTHOR("David Dawes <dawes@tungstengraphics.com>, "
225 "Sylvain Meyer <sylvain.meyer@worldonline.fr>");
226 MODULE_DESCRIPTION(
227 "Framebuffer driver for Intel(R) " SUPPORTED_CHIPSETS " chipsets");
228 MODULE_LICENSE("Dual BSD/GPL");
229 MODULE_DEVICE_TABLE(pci, intelfb_pci_table);
230
231 static int accel __initdata = 1;
232 static int vram __initdata = 4;
233 static int hwcursor __initdata = 1;
234 static int mtrr __initdata = 1;
235 static int fixed __initdata = 0;
236 static int noinit __initdata = 0;
237 static int noregister __initdata = 0;
238 static int probeonly __initdata = 0;
239 static int idonly __initdata = 0;
240 static int bailearly __initdata = 0;
241 static char *mode __initdata = NULL;
242
243 module_param(accel, bool, S_IRUGO);
244 MODULE_PARM_DESC(accel, "Enable console acceleration");
245 module_param(vram, int, S_IRUGO);
246 MODULE_PARM_DESC(vram, "System RAM to allocate to framebuffer in MiB");
247 module_param(hwcursor, bool, S_IRUGO);
248 MODULE_PARM_DESC(hwcursor, "Enable HW cursor");
249 module_param(mtrr, bool, S_IRUGO);
250 MODULE_PARM_DESC(mtrr, "Enable MTRR support");
251 module_param(fixed, bool, S_IRUGO);
252 MODULE_PARM_DESC(fixed, "Disable mode switching");
253 module_param(noinit, bool, 0);
254 MODULE_PARM_DESC(noinit, "Don't initialise graphics mode when loading");
255 module_param(noregister, bool, 0);
256 MODULE_PARM_DESC(noregister, "Don't register, just probe and exit (debug)");
257 module_param(probeonly, bool, 0);
258 MODULE_PARM_DESC(probeonly, "Do a minimal probe (debug)");
259 module_param(idonly, bool, 0);
260 MODULE_PARM_DESC(idonly, "Just identify without doing anything else (debug)");
261 module_param(bailearly, bool, 0);
262 MODULE_PARM_DESC(bailearly, "Bail out early, depending on value (debug)");
263 module_param(mode, charp, S_IRUGO);
264 MODULE_PARM_DESC(mode,
265 "Initial video mode \"<xres>x<yres>[-<depth>][@<refresh>]\"");
266
267 #ifndef MODULE
268 #define OPT_EQUAL(opt, name) (!strncmp(opt, name, strlen(name)))
269 #define OPT_INTVAL(opt, name) simple_strtoul(opt + strlen(name), NULL, 0)
270 #define OPT_STRVAL(opt, name) (opt + strlen(name))
271
272 static __inline__ char *
273 get_opt_string(const char *this_opt, const char *name)
274 {
275 const char *p;
276 int i;
277 char *ret;
278
279 p = OPT_STRVAL(this_opt, name);
280 i = 0;
281 while (p[i] && p[i] != ' ' && p[i] != ',')
282 i++;
283 ret = kmalloc(i + 1, GFP_KERNEL);
284 if (ret) {
285 strncpy(ret, p, i);
286 ret[i] = '\0';
287 }
288 return ret;
289 }
290
291 static __inline__ int
292 get_opt_int(const char *this_opt, const char *name, int *ret)
293 {
294 if (!ret)
295 return 0;
296
297 if (!OPT_EQUAL(this_opt, name))
298 return 0;
299
300 *ret = OPT_INTVAL(this_opt, name);
301 return 1;
302 }
303
304 static __inline__ int
305 get_opt_bool(const char *this_opt, const char *name, int *ret)
306 {
307 if (!ret)
308 return 0;
309
310 if (OPT_EQUAL(this_opt, name)) {
311 if (this_opt[strlen(name)] == '=')
312 *ret = simple_strtoul(this_opt + strlen(name) + 1,
313 NULL, 0);
314 else
315 *ret = 1;
316 } else {
317 if (OPT_EQUAL(this_opt, "no") && OPT_EQUAL(this_opt + 2, name))
318 *ret = 0;
319 else
320 return 0;
321 }
322 return 1;
323 }
324
325 static int __init
326 intelfb_setup(char *options)
327 {
328 char *this_opt;
329
330 DBG_MSG("intelfb_setup\n");
331
332 if (!options || !*options) {
333 DBG_MSG("no options\n");
334 return 0;
335 } else
336 DBG_MSG("options: %s\n", options);
337
338 /*
339 * These are the built-in options analogous to the module parameters
340 * defined above.
341 *
342 * The syntax is:
343 *
344 * video=intelfb:[mode][,<param>=<val>] ...
345 *
346 * e.g.,
347 *
348 * video=intelfb:1024x768-16@75,accel=0
349 */
350
351 while ((this_opt = strsep(&options, ","))) {
352 if (!*this_opt)
353 continue;
354 if (get_opt_bool(this_opt, "accel", &accel))
355 ;
356 else if (get_opt_int(this_opt, "vram", &vram))
357 ;
358 else if (get_opt_bool(this_opt, "hwcursor", &hwcursor))
359 ;
360 else if (get_opt_bool(this_opt, "mtrr", &mtrr))
361 ;
362 else if (get_opt_bool(this_opt, "fixed", &fixed))
363 ;
364 else if (get_opt_bool(this_opt, "init", &noinit))
365 noinit = !noinit;
366 else if (OPT_EQUAL(this_opt, "mode="))
367 mode = get_opt_string(this_opt, "mode=");
368 else
369 mode = this_opt;
370 }
371
372 return 0;
373 }
374
375 #endif
376
377 static int __init
378 intelfb_init(void)
379 {
380 #ifndef MODULE
381 char *option = NULL;
382 #endif
383
384 DBG_MSG("intelfb_init\n");
385
386 INF_MSG("Framebuffer driver for "
387 "Intel(R) " SUPPORTED_CHIPSETS " chipsets\n");
388 INF_MSG("Version " INTELFB_VERSION "\n");
389
390 if (idonly)
391 return -ENODEV;
392
393 #ifndef MODULE
394 if (fb_get_options("intelfb", &option))
395 return -ENODEV;
396 intelfb_setup(option);
397 #endif
398
399 return pci_register_driver(&intelfb_driver);
400 }
401
402 static void __exit
403 intelfb_exit(void)
404 {
405 DBG_MSG("intelfb_exit\n");
406 pci_unregister_driver(&intelfb_driver);
407 }
408
409 module_init(intelfb_init);
410 module_exit(intelfb_exit);
411
412 /***************************************************************
413 * mtrr support functions *
414 ***************************************************************/
415
416 #ifdef CONFIG_MTRR
417 static inline void __devinit set_mtrr(struct intelfb_info *dinfo)
418 {
419 dinfo->mtrr_reg = mtrr_add(dinfo->aperture.physical,
420 dinfo->aperture.size, MTRR_TYPE_WRCOMB, 1);
421 if (dinfo->mtrr_reg < 0) {
422 ERR_MSG("unable to set MTRR\n");
423 return;
424 }
425 dinfo->has_mtrr = 1;
426 }
427 static inline void unset_mtrr(struct intelfb_info *dinfo)
428 {
429 if (dinfo->has_mtrr)
430 mtrr_del(dinfo->mtrr_reg, dinfo->aperture.physical,
431 dinfo->aperture.size);
432 }
433 #else
434 #define set_mtrr(x) WRN_MSG("MTRR is disabled in the kernel\n")
435
436 #define unset_mtrr(x) do { } while (0)
437 #endif /* CONFIG_MTRR */
438
439 /***************************************************************
440 * driver init / cleanup *
441 ***************************************************************/
442
443 static void
444 cleanup(struct intelfb_info *dinfo)
445 {
446 DBG_MSG("cleanup\n");
447
448 if (!dinfo)
449 return;
450
451 fb_dealloc_cmap(&dinfo->info->cmap);
452 kfree(dinfo->info->pixmap.addr);
453
454 if (dinfo->registered)
455 unregister_framebuffer(dinfo->info);
456
457 unset_mtrr(dinfo);
458
459 if (dinfo->fbmem_gart && dinfo->gtt_fb_mem) {
460 agp_unbind_memory(dinfo->gtt_fb_mem);
461 agp_free_memory(dinfo->gtt_fb_mem);
462 }
463 if (dinfo->gtt_cursor_mem) {
464 agp_unbind_memory(dinfo->gtt_cursor_mem);
465 agp_free_memory(dinfo->gtt_cursor_mem);
466 }
467 if (dinfo->gtt_ring_mem) {
468 agp_unbind_memory(dinfo->gtt_ring_mem);
469 agp_free_memory(dinfo->gtt_ring_mem);
470 }
471
472 if (dinfo->mmio_base)
473 iounmap((void __iomem *)dinfo->mmio_base);
474 if (dinfo->aperture.virtual)
475 iounmap((void __iomem *)dinfo->aperture.virtual);
476
477 if (dinfo->mmio_base_phys)
478 release_mem_region(dinfo->mmio_base_phys, INTEL_REG_SIZE);
479 if (dinfo->aperture.physical)
480 release_mem_region(dinfo->aperture.physical,
481 dinfo->aperture.size);
482 framebuffer_release(dinfo->info);
483 }
484
485 #define bailout(dinfo) do { \
486 DBG_MSG("bailout\n"); \
487 cleanup(dinfo); \
488 INF_MSG("Not going to register framebuffer, exiting...\n"); \
489 return -ENODEV; \
490 } while (0)
491
492
493 static int __devinit
494 intelfb_pci_register(struct pci_dev *pdev, const struct pci_device_id *ent)
495 {
496 struct fb_info *info;
497 struct intelfb_info *dinfo;
498 int i, j, err, dvo;
499 int aperture_size, stolen_size;
500 struct agp_kern_info gtt_info;
501 int agp_memtype;
502 const char *s;
503 struct agp_bridge_data *bridge;
504 int aperture_bar = 0;
505 int mmio_bar = 1;
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 aperture_bar = 2;
554 mmio_bar = 0;
555 /* Disable HW cursor on 915G (not implemented yet) */
556 hwcursor = 0;
557 }
558 dinfo->aperture.physical = pci_resource_start(pdev, aperture_bar);
559 dinfo->aperture.size = pci_resource_len(pdev, aperture_bar);
560 dinfo->mmio_base_phys = pci_resource_start(pdev, mmio_bar);
561 DBG_MSG("fb aperture: 0x%llx/0x%llx, MMIO region: 0x%llx/0x%llx\n",
562 (unsigned long long)pci_resource_start(pdev, aperture_bar),
563 (unsigned long long)pci_resource_len(pdev, aperture_bar),
564 (unsigned long long)pci_resource_start(pdev, mmio_bar),
565 (unsigned long long)pci_resource_len(pdev, mmio_bar));
566
567 /* Reserve the fb and MMIO regions */
568 if (!request_mem_region(dinfo->aperture.physical, dinfo->aperture.size,
569 INTELFB_MODULE_NAME)) {
570 ERR_MSG("Cannot reserve FB region.\n");
571 cleanup(dinfo);
572 return -ENODEV;
573 }
574 if (!request_mem_region(dinfo->mmio_base_phys,
575 INTEL_REG_SIZE,
576 INTELFB_MODULE_NAME)) {
577 ERR_MSG("Cannot reserve MMIO region.\n");
578 cleanup(dinfo);
579 return -ENODEV;
580 }
581
582 /* Map the fb and MMIO regions */
583 dinfo->aperture.virtual = (u8 __iomem *)ioremap_nocache
584 (dinfo->aperture.physical, dinfo->aperture.size);
585 if (!dinfo->aperture.virtual) {
586 ERR_MSG("Cannot remap FB region.\n");
587 cleanup(dinfo);
588 return -ENODEV;
589 }
590 dinfo->mmio_base =
591 (u8 __iomem *)ioremap_nocache(dinfo->mmio_base_phys,
592 INTEL_REG_SIZE);
593 if (!dinfo->mmio_base) {
594 ERR_MSG("Cannot remap MMIO region.\n");
595 cleanup(dinfo);
596 return -ENODEV;
597 }
598
599 /* Get the chipset info. */
600 dinfo->pci_chipset = pdev->device;
601
602 if (intelfbhw_get_chipset(pdev, &dinfo->name, &dinfo->chipset,
603 &dinfo->mobile)) {
604 cleanup(dinfo);
605 return -ENODEV;
606 }
607
608 if (intelfbhw_get_memory(pdev, &aperture_size,&stolen_size)) {
609 cleanup(dinfo);
610 return -ENODEV;
611 }
612
613 INF_MSG("%02x:%02x.%d: %s, aperture size %dMB, "
614 "stolen memory %dkB\n",
615 pdev->bus->number, PCI_SLOT(pdev->devfn),
616 PCI_FUNC(pdev->devfn), dinfo->name,
617 BtoMB(aperture_size), BtoKB(stolen_size));
618
619 /* Set these from the options. */
620 dinfo->accel = accel;
621 dinfo->hwcursor = hwcursor;
622
623 if (NOACCEL_CHIPSET(dinfo) && dinfo->accel == 1) {
624 INF_MSG("Acceleration is not supported for the %s chipset.\n",
625 dinfo->name);
626 dinfo->accel = 0;
627 }
628
629 /* Framebuffer parameters - Use all the stolen memory if >= vram */
630 if (ROUND_UP_TO_PAGE(stolen_size) >= MB(vram)) {
631 dinfo->fb.size = ROUND_UP_TO_PAGE(stolen_size);
632 dinfo->fbmem_gart = 0;
633 } else {
634 dinfo->fb.size = MB(vram);
635 dinfo->fbmem_gart = 1;
636 }
637
638 /* Allocate space for the ring buffer and HW cursor if enabled. */
639 if (dinfo->accel) {
640 dinfo->ring.size = RINGBUFFER_SIZE;
641 dinfo->ring_tail_mask = dinfo->ring.size - 1;
642 }
643 if (dinfo->hwcursor) {
644 dinfo->cursor.size = HW_CURSOR_SIZE;
645 }
646
647 /* Use agpgart to manage the GATT */
648 if (!(bridge = agp_backend_acquire(pdev))) {
649 ERR_MSG("cannot acquire agp\n");
650 cleanup(dinfo);
651 return -ENODEV;
652 }
653
654 /* get the current gatt info */
655 if (agp_copy_info(bridge, &gtt_info)) {
656 ERR_MSG("cannot get agp info\n");
657 agp_backend_release(bridge);
658 cleanup(dinfo);
659 return -ENODEV;
660 }
661
662 /* set the mem offsets - set them after the already used pages */
663 if (dinfo->accel) {
664 dinfo->ring.offset = (stolen_size >> 12)
665 + gtt_info.current_memory;
666 }
667 if (dinfo->hwcursor) {
668 dinfo->cursor.offset = (stolen_size >> 12) +
669 + gtt_info.current_memory + (dinfo->ring.size >> 12);
670 }
671 if (dinfo->fbmem_gart) {
672 dinfo->fb.offset = (stolen_size >> 12) +
673 + gtt_info.current_memory + (dinfo->ring.size >> 12)
674 + (dinfo->cursor.size >> 12);
675 }
676
677 /* Allocate memories (which aren't stolen) */
678 if (dinfo->accel) {
679 if (!(dinfo->gtt_ring_mem =
680 agp_allocate_memory(bridge, dinfo->ring.size >> 12,
681 AGP_NORMAL_MEMORY))) {
682 ERR_MSG("cannot allocate ring buffer memory\n");
683 agp_backend_release(bridge);
684 cleanup(dinfo);
685 return -ENOMEM;
686 }
687 if (agp_bind_memory(dinfo->gtt_ring_mem,
688 dinfo->ring.offset)) {
689 ERR_MSG("cannot bind ring buffer memory\n");
690 agp_backend_release(bridge);
691 cleanup(dinfo);
692 return -EBUSY;
693 }
694 dinfo->ring.physical = dinfo->aperture.physical
695 + (dinfo->ring.offset << 12);
696 dinfo->ring.virtual = dinfo->aperture.virtual
697 + (dinfo->ring.offset << 12);
698 dinfo->ring_head = dinfo->ring.virtual;
699 }
700 if (dinfo->hwcursor) {
701 agp_memtype = dinfo->mobile ? AGP_PHYSICAL_MEMORY
702 : AGP_NORMAL_MEMORY;
703 if (!(dinfo->gtt_cursor_mem =
704 agp_allocate_memory(bridge, dinfo->cursor.size >> 12,
705 agp_memtype))) {
706 ERR_MSG("cannot allocate cursor memory\n");
707 agp_backend_release(bridge);
708 cleanup(dinfo);
709 return -ENOMEM;
710 }
711 if (agp_bind_memory(dinfo->gtt_cursor_mem,
712 dinfo->cursor.offset)) {
713 ERR_MSG("cannot bind cursor memory\n");
714 agp_backend_release(bridge);
715 cleanup(dinfo);
716 return -EBUSY;
717 }
718 if (dinfo->mobile)
719 dinfo->cursor.physical
720 = dinfo->gtt_cursor_mem->physical;
721 else
722 dinfo->cursor.physical = dinfo->aperture.physical
723 + (dinfo->cursor.offset << 12);
724 dinfo->cursor.virtual = dinfo->aperture.virtual
725 + (dinfo->cursor.offset << 12);
726 }
727 if (dinfo->fbmem_gart) {
728 if (!(dinfo->gtt_fb_mem =
729 agp_allocate_memory(bridge, dinfo->fb.size >> 12,
730 AGP_NORMAL_MEMORY))) {
731 WRN_MSG("cannot allocate framebuffer memory - use "
732 "the stolen one\n");
733 dinfo->fbmem_gart = 0;
734 }
735 if (agp_bind_memory(dinfo->gtt_fb_mem,
736 dinfo->fb.offset)) {
737 WRN_MSG("cannot bind framebuffer memory - use "
738 "the stolen one\n");
739 dinfo->fbmem_gart = 0;
740 }
741 }
742
743 /* update framebuffer memory parameters */
744 if (!dinfo->fbmem_gart)
745 dinfo->fb.offset = 0; /* starts at offset 0 */
746 dinfo->fb.physical = dinfo->aperture.physical
747 + (dinfo->fb.offset << 12);
748 dinfo->fb.virtual = dinfo->aperture.virtual + (dinfo->fb.offset << 12);
749 dinfo->fb_start = dinfo->fb.offset << 12;
750
751 /* release agpgart */
752 agp_backend_release(bridge);
753
754 if (mtrr)
755 set_mtrr(dinfo);
756
757 DBG_MSG("fb: 0x%x(+ 0x%x)/0x%x (0x%x)\n",
758 dinfo->fb.physical, dinfo->fb.offset, dinfo->fb.size,
759 (u32 __iomem ) dinfo->fb.virtual);
760 DBG_MSG("MMIO: 0x%x/0x%x (0x%x)\n",
761 dinfo->mmio_base_phys, INTEL_REG_SIZE,
762 (u32 __iomem) dinfo->mmio_base);
763 DBG_MSG("ring buffer: 0x%x/0x%x (0x%x)\n",
764 dinfo->ring.physical, dinfo->ring.size,
765 (u32 __iomem ) dinfo->ring.virtual);
766 DBG_MSG("HW cursor: 0x%x/0x%x (0x%x) (offset 0x%x) (phys 0x%x)\n",
767 dinfo->cursor.physical, dinfo->cursor.size,
768 (u32 __iomem ) dinfo->cursor.virtual, dinfo->cursor.offset,
769 dinfo->cursor.physical);
770
771 DBG_MSG("options: vram = %d, accel = %d, hwcursor = %d, fixed = %d, "
772 "noinit = %d\n", vram, accel, hwcursor, fixed, noinit);
773 DBG_MSG("options: mode = \"%s\"\n", mode ? mode : "");
774
775 if (probeonly)
776 bailout(dinfo);
777
778 /*
779 * Check if the LVDS port or any DVO ports are enabled. If so,
780 * don't allow mode switching
781 */
782 dvo = intelfbhw_check_non_crt(dinfo);
783 if (dvo) {
784 dinfo->fixed_mode = 1;
785 WRN_MSG("Non-CRT device is enabled ( ");
786 i = 0;
787 while (dvo) {
788 if (dvo & 1) {
789 s = intelfbhw_dvo_to_string(1 << i);
790 if (s)
791 printk("%s ", s);
792 }
793 dvo >>= 1;
794 ++i;
795 }
796 printk("). Disabling mode switching.\n");
797 }
798
799 if (bailearly == 1)
800 bailout(dinfo);
801
802 if (FIXED_MODE(dinfo) && ORIG_VIDEO_ISVGA != VIDEO_TYPE_VLFB) {
803 ERR_MSG("Video mode must be programmed at boot time.\n");
804 cleanup(dinfo);
805 return -ENODEV;
806 }
807
808 if (bailearly == 2)
809 bailout(dinfo);
810
811 /* Initialise dinfo and related data. */
812 /* If an initial mode was programmed at boot time, get its details. */
813 if (ORIG_VIDEO_ISVGA == VIDEO_TYPE_VLFB)
814 get_initial_mode(dinfo);
815
816 if (bailearly == 3)
817 bailout(dinfo);
818
819 if (FIXED_MODE(dinfo)) {
820 /* remap fb address */
821 update_dinfo(dinfo, &dinfo->initial_var);
822 }
823
824 if (bailearly == 4)
825 bailout(dinfo);
826
827
828 if (intelfb_set_fbinfo(dinfo)) {
829 cleanup(dinfo);
830 return -ENODEV;
831 }
832
833 if (bailearly == 5)
834 bailout(dinfo);
835
836 for (i = 0; i < 16; i++) {
837 j = color_table[i];
838 dinfo->palette[i].red = default_red[j];
839 dinfo->palette[i].green = default_grn[j];
840 dinfo->palette[i].blue = default_blu[j];
841 }
842
843 if (bailearly == 6)
844 bailout(dinfo);
845
846 pci_set_drvdata(pdev, dinfo);
847
848 /* Save the initial register state. */
849 i = intelfbhw_read_hw_state(dinfo, &dinfo->save_state,
850 bailearly > 6 ? bailearly - 6 : 0);
851 if (i != 0) {
852 DBG_MSG("intelfbhw_read_hw_state returned %d\n", i);
853 bailout(dinfo);
854 }
855
856 intelfbhw_print_hw_state(dinfo, &dinfo->save_state);
857
858 if (bailearly == 18)
859 bailout(dinfo);
860
861 /* Cursor initialisation */
862 if (dinfo->hwcursor) {
863 intelfbhw_cursor_init(dinfo);
864 intelfbhw_cursor_reset(dinfo);
865 }
866
867 if (bailearly == 19)
868 bailout(dinfo);
869
870 /* 2d acceleration init */
871 if (dinfo->accel)
872 intelfbhw_2d_start(dinfo);
873
874 if (bailearly == 20)
875 bailout(dinfo);
876
877 if (noregister)
878 bailout(dinfo);
879
880 if (register_framebuffer(dinfo->info) < 0) {
881 ERR_MSG("Cannot register framebuffer.\n");
882 cleanup(dinfo);
883 return -ENODEV;
884 }
885
886 dinfo->registered = 1;
887
888 return 0;
889
890 err_out_pixmap:
891 fb_dealloc_cmap(&info->cmap);
892 err_out_cmap:
893 framebuffer_release(info);
894 return -ENODEV;
895 }
896
897 static void __devexit
898 intelfb_pci_unregister(struct pci_dev *pdev)
899 {
900 struct intelfb_info *dinfo = pci_get_drvdata(pdev);
901
902 DBG_MSG("intelfb_pci_unregister\n");
903
904 if (!dinfo)
905 return;
906
907 cleanup(dinfo);
908
909 pci_set_drvdata(pdev, NULL);
910 }
911
912 /***************************************************************
913 * helper functions *
914 ***************************************************************/
915
916 int __inline__
917 intelfb_var_to_depth(const struct fb_var_screeninfo *var)
918 {
919 DBG_MSG("intelfb_var_to_depth: bpp: %d, green.length is %d\n",
920 var->bits_per_pixel, var->green.length);
921
922 switch (var->bits_per_pixel) {
923 case 16:
924 return (var->green.length == 6) ? 16 : 15;
925 case 32:
926 return 24;
927 default:
928 return var->bits_per_pixel;
929 }
930 }
931
932
933 static __inline__ int
934 var_to_refresh(const struct fb_var_screeninfo *var)
935 {
936 int xtot = var->xres + var->left_margin + var->right_margin +
937 var->hsync_len;
938 int ytot = var->yres + var->upper_margin + var->lower_margin +
939 var->vsync_len;
940
941 return (1000000000 / var->pixclock * 1000 + 500) / xtot / ytot;
942 }
943
944 /***************************************************************
945 * Various intialisation functions *
946 ***************************************************************/
947
948 static void __devinit
949 get_initial_mode(struct intelfb_info *dinfo)
950 {
951 struct fb_var_screeninfo *var;
952 int xtot, ytot;
953
954 DBG_MSG("get_initial_mode\n");
955
956 dinfo->initial_vga = 1;
957 dinfo->initial_fb_base = screen_info.lfb_base;
958 dinfo->initial_video_ram = screen_info.lfb_size * KB(64);
959 dinfo->initial_pitch = screen_info.lfb_linelength;
960
961 var = &dinfo->initial_var;
962 memset(var, 0, sizeof(*var));
963 var->xres = screen_info.lfb_width;
964 var->yres = screen_info.lfb_height;
965 var->bits_per_pixel = screen_info.lfb_depth;
966 switch (screen_info.lfb_depth) {
967 case 15:
968 var->bits_per_pixel = 16;
969 break;
970 case 24:
971 var->bits_per_pixel = 32;
972 break;
973 }
974
975 DBG_MSG("Initial info: FB is 0x%x/0x%x (%d kByte)\n",
976 dinfo->initial_fb_base, dinfo->initial_video_ram,
977 BtoKB(dinfo->initial_video_ram));
978
979 DBG_MSG("Initial info: mode is %dx%d-%d (%d)\n",
980 var->xres, var->yres, var->bits_per_pixel,
981 dinfo->initial_pitch);
982
983 /* Dummy timing values (assume 60Hz) */
984 var->left_margin = (var->xres / 8) & 0xf8;
985 var->right_margin = 32;
986 var->upper_margin = 16;
987 var->lower_margin = 4;
988 var->hsync_len = (var->xres / 8) & 0xf8;
989 var->vsync_len = 4;
990
991 xtot = var->xres + var->left_margin +
992 var->right_margin + var->hsync_len;
993 ytot = var->yres + var->upper_margin +
994 var->lower_margin + var->vsync_len;
995 var->pixclock = 10000000 / xtot * 1000 / ytot * 100 / 60;
996
997 var->height = -1;
998 var->width = -1;
999
1000 if (var->bits_per_pixel > 8) {
1001 var->red.offset = screen_info.red_pos;
1002 var->red.length = screen_info.red_size;
1003 var->green.offset = screen_info.green_pos;
1004 var->green.length = screen_info.green_size;
1005 var->blue.offset = screen_info.blue_pos;
1006 var->blue.length = screen_info.blue_size;
1007 var->transp.offset = screen_info.rsvd_pos;
1008 var->transp.length = screen_info.rsvd_size;
1009 } else {
1010 var->red.length = 8;
1011 var->green.length = 8;
1012 var->blue.length = 8;
1013 }
1014 }
1015
1016 static int __devinit
1017 intelfb_init_var(struct intelfb_info *dinfo)
1018 {
1019 struct fb_var_screeninfo *var;
1020 int msrc = 0;
1021
1022 DBG_MSG("intelfb_init_var\n");
1023
1024 var = &dinfo->info->var;
1025 if (FIXED_MODE(dinfo)) {
1026 memcpy(var, &dinfo->initial_var,
1027 sizeof(struct fb_var_screeninfo));
1028 msrc = 5;
1029 } else {
1030 if (mode) {
1031 msrc = fb_find_mode(var, dinfo->info, mode,
1032 vesa_modes, VESA_MODEDB_SIZE,
1033 NULL, 0);
1034 if (msrc)
1035 msrc |= 8;
1036 }
1037 if (!msrc) {
1038 msrc = fb_find_mode(var, dinfo->info, PREFERRED_MODE,
1039 vesa_modes, VESA_MODEDB_SIZE,
1040 NULL, 0);
1041 }
1042 }
1043
1044 if (!msrc) {
1045 ERR_MSG("Cannot find a suitable video mode.\n");
1046 return 1;
1047 }
1048
1049 INF_MSG("Initial video mode is %dx%d-%d@%d.\n", var->xres, var->yres,
1050 var->bits_per_pixel, var_to_refresh(var));
1051
1052 DBG_MSG("Initial video mode is from %d.\n", msrc);
1053
1054 #if ALLOCATE_FOR_PANNING
1055 /* Allow use of half of the video ram for panning */
1056 var->xres_virtual = var->xres;
1057 var->yres_virtual =
1058 dinfo->fb.size / 2 / (var->bits_per_pixel * var->xres);
1059 if (var->yres_virtual < var->yres)
1060 var->yres_virtual = var->yres;
1061 #else
1062 var->yres_virtual = var->yres;
1063 #endif
1064
1065 if (dinfo->accel)
1066 var->accel_flags |= FB_ACCELF_TEXT;
1067 else
1068 var->accel_flags &= ~FB_ACCELF_TEXT;
1069
1070 return 0;
1071 }
1072
1073 static int __devinit
1074 intelfb_set_fbinfo(struct intelfb_info *dinfo)
1075 {
1076 struct fb_info *info = dinfo->info;
1077
1078 DBG_MSG("intelfb_set_fbinfo\n");
1079
1080 info->flags = FBINFO_FLAG_DEFAULT;
1081 info->fbops = &intel_fb_ops;
1082 info->pseudo_palette = dinfo->pseudo_palette;
1083
1084 info->pixmap.size = 64*1024;
1085 info->pixmap.buf_align = 8;
1086 info->pixmap.flags = FB_PIXMAP_SYSTEM;
1087
1088 if (intelfb_init_var(dinfo))
1089 return 1;
1090
1091 info->pixmap.scan_align = 1;
1092
1093 update_dinfo(dinfo, &info->var);
1094
1095 return 0;
1096 }
1097
1098 /* Update dinfo to match the active video mode. */
1099 static void
1100 update_dinfo(struct intelfb_info *dinfo, struct fb_var_screeninfo *var)
1101 {
1102 DBG_MSG("update_dinfo\n");
1103
1104 dinfo->bpp = var->bits_per_pixel;
1105 dinfo->depth = intelfb_var_to_depth(var);
1106 dinfo->xres = var->xres;
1107 dinfo->yres = var->xres;
1108 dinfo->pixclock = var->pixclock;
1109
1110 intelfb_get_fix(&dinfo->info->fix, dinfo->info);
1111
1112 switch (dinfo->bpp) {
1113 case 8:
1114 dinfo->visual = FB_VISUAL_PSEUDOCOLOR;
1115 dinfo->pitch = var->xres_virtual;
1116 break;
1117 case 16:
1118 dinfo->visual = FB_VISUAL_TRUECOLOR;
1119 dinfo->pitch = var->xres_virtual * 2;
1120 break;
1121 case 32:
1122 dinfo->visual = FB_VISUAL_TRUECOLOR;
1123 dinfo->pitch = var->xres_virtual * 4;
1124 break;
1125 }
1126
1127 /* Make sure the line length is a aligned correctly. */
1128 dinfo->pitch = ROUND_UP_TO(dinfo->pitch, STRIDE_ALIGNMENT);
1129
1130 if (FIXED_MODE(dinfo))
1131 dinfo->pitch = dinfo->initial_pitch;
1132
1133 dinfo->info->screen_base = (char __iomem *)dinfo->fb.virtual;
1134 dinfo->info->fix.line_length = dinfo->pitch;
1135 dinfo->info->fix.visual = dinfo->visual;
1136 }
1137
1138 /* fbops functions */
1139
1140 static int
1141 intelfb_get_fix(struct fb_fix_screeninfo *fix, struct fb_info *info)
1142 {
1143 struct intelfb_info *dinfo = GET_DINFO(info);
1144
1145 DBG_MSG("intelfb_get_fix\n");
1146
1147 memset(fix, 0, sizeof(*fix));
1148 strcpy(fix->id, dinfo->name);
1149 fix->smem_start = dinfo->fb.physical;
1150 fix->smem_len = dinfo->fb.size;
1151 fix->type = FB_TYPE_PACKED_PIXELS;
1152 fix->type_aux = 0;
1153 fix->visual = dinfo->visual;
1154 fix->xpanstep = 8;
1155 fix->ypanstep = 1;
1156 fix->ywrapstep = 0;
1157 fix->line_length = dinfo->pitch;
1158 fix->mmio_start = dinfo->mmio_base_phys;
1159 fix->mmio_len = INTEL_REG_SIZE;
1160 fix->accel = FB_ACCEL_I830;
1161 return 0;
1162 }
1163
1164 /***************************************************************
1165 * fbdev interface *
1166 ***************************************************************/
1167
1168 static int
1169 intelfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
1170 {
1171 int change_var = 0;
1172 struct fb_var_screeninfo v;
1173 struct intelfb_info *dinfo;
1174 static int first = 1;
1175
1176 DBG_MSG("intelfb_check_var: accel_flags is %d\n", var->accel_flags);
1177
1178 dinfo = GET_DINFO(info);
1179
1180 if (intelfbhw_validate_mode(dinfo, var) != 0)
1181 return -EINVAL;
1182
1183 v = *var;
1184
1185 /* Check for a supported bpp. */
1186 if (v.bits_per_pixel <= 8) {
1187 v.bits_per_pixel = 8;
1188 } else if (v.bits_per_pixel <= 16) {
1189 if (v.bits_per_pixel == 16)
1190 v.green.length = 6;
1191 v.bits_per_pixel = 16;
1192 } else if (v.bits_per_pixel <= 32) {
1193 v.bits_per_pixel = 32;
1194 } else
1195 return -EINVAL;
1196
1197 change_var = ((info->var.xres != var->xres) ||
1198 (info->var.yres != var->yres) ||
1199 (info->var.xres_virtual != var->xres_virtual) ||
1200 (info->var.yres_virtual != var->yres_virtual) ||
1201 (info->var.bits_per_pixel != var->bits_per_pixel) ||
1202 memcmp(&info->var.red, &var->red, sizeof(var->red)) ||
1203 memcmp(&info->var.green, &var->green,
1204 sizeof(var->green)) ||
1205 memcmp(&info->var.blue, &var->blue, sizeof(var->blue)));
1206
1207 if (FIXED_MODE(dinfo) &&
1208 (change_var ||
1209 var->yres_virtual > dinfo->initial_var.yres_virtual ||
1210 var->yres_virtual < dinfo->initial_var.yres ||
1211 var->xoffset || var->nonstd)) {
1212 if (first) {
1213 ERR_MSG("Changing the video mode is not supported.\n");
1214 first = 0;
1215 }
1216 return -EINVAL;
1217 }
1218
1219 switch (intelfb_var_to_depth(&v)) {
1220 case 8:
1221 v.red.offset = v.green.offset = v.blue.offset = 0;
1222 v.red.length = v.green.length = v.blue.length = 8;
1223 v.transp.offset = v.transp.length = 0;
1224 break;
1225 case 15:
1226 v.red.offset = 10;
1227 v.green.offset = 5;
1228 v.blue.offset = 0;
1229 v.red.length = v.green.length = v.blue.length = 5;
1230 v.transp.offset = v.transp.length = 0;
1231 break;
1232 case 16:
1233 v.red.offset = 11;
1234 v.green.offset = 5;
1235 v.blue.offset = 0;
1236 v.red.length = 5;
1237 v.green.length = 6;
1238 v.blue.length = 5;
1239 v.transp.offset = v.transp.length = 0;
1240 break;
1241 case 24:
1242 v.red.offset = 16;
1243 v.green.offset = 8;
1244 v.blue.offset = 0;
1245 v.red.length = v.green.length = v.blue.length = 8;
1246 v.transp.offset = v.transp.length = 0;
1247 break;
1248 case 32:
1249 v.red.offset = 16;
1250 v.green.offset = 8;
1251 v.blue.offset = 0;
1252 v.red.length = v.green.length = v.blue.length = 8;
1253 v.transp.offset = 24;
1254 v.transp.length = 8;
1255 break;
1256 }
1257
1258 if (v.xoffset < 0)
1259 v.xoffset = 0;
1260 if (v.yoffset < 0)
1261 v.yoffset = 0;
1262
1263 if (v.xoffset > v.xres_virtual - v.xres)
1264 v.xoffset = v.xres_virtual - v.xres;
1265 if (v.yoffset > v.yres_virtual - v.yres)
1266 v.yoffset = v.yres_virtual - v.yres;
1267
1268 v.red.msb_right = v.green.msb_right = v.blue.msb_right =
1269 v.transp.msb_right = 0;
1270
1271 *var = v;
1272
1273 return 0;
1274 }
1275
1276 static int
1277 intelfb_set_par(struct fb_info *info)
1278 {
1279 struct intelfb_hwstate *hw;
1280 struct intelfb_info *dinfo = GET_DINFO(info);
1281
1282 if (FIXED_MODE(dinfo)) {
1283 ERR_MSG("Changing the video mode is not supported.\n");
1284 return -EINVAL;
1285 }
1286
1287 hw = kmalloc(sizeof(*hw), GFP_ATOMIC);
1288 if (!hw)
1289 return -ENOMEM;
1290
1291 DBG_MSG("intelfb_set_par (%dx%d-%d)\n", info->var.xres,
1292 info->var.yres, info->var.bits_per_pixel);
1293
1294 intelfb_blank(FB_BLANK_POWERDOWN, info);
1295
1296 if (dinfo->accel)
1297 intelfbhw_2d_stop(dinfo);
1298
1299 memcpy(hw, &dinfo->save_state, sizeof(*hw));
1300 if (intelfbhw_mode_to_hw(dinfo, hw, &info->var))
1301 goto invalid_mode;
1302 if (intelfbhw_program_mode(dinfo, hw, 0))
1303 goto invalid_mode;
1304
1305 #if REGDUMP > 0
1306 intelfbhw_read_hw_state(dinfo, hw, 0);
1307 intelfbhw_print_hw_state(dinfo, hw);
1308 #endif
1309
1310 update_dinfo(dinfo, &info->var);
1311
1312 if (dinfo->accel)
1313 intelfbhw_2d_start(dinfo);
1314
1315 intelfb_pan_display(&info->var, info);
1316
1317 intelfb_blank(FB_BLANK_UNBLANK, info);
1318
1319 if (ACCEL(dinfo, info)) {
1320 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN |
1321 FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_FILLRECT |
1322 FBINFO_HWACCEL_IMAGEBLIT;
1323 } else {
1324 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
1325 }
1326 kfree(hw);
1327 return 0;
1328 invalid_mode:
1329 kfree(hw);
1330 return -EINVAL;
1331 }
1332
1333 static int
1334 intelfb_setcolreg(unsigned regno, unsigned red, unsigned green,
1335 unsigned blue, unsigned transp, struct fb_info *info)
1336 {
1337 struct intelfb_info *dinfo = GET_DINFO(info);
1338
1339 #if VERBOSE > 0
1340 DBG_MSG("intelfb_setcolreg: regno %d, depth %d\n", regno, dinfo->depth);
1341 #endif
1342
1343 if (regno > 255)
1344 return 1;
1345
1346 switch (dinfo->depth) {
1347 case 8:
1348 {
1349 red >>= 8;
1350 green >>= 8;
1351 blue >>= 8;
1352
1353 dinfo->palette[regno].red = red;
1354 dinfo->palette[regno].green = green;
1355 dinfo->palette[regno].blue = blue;
1356
1357 intelfbhw_setcolreg(dinfo, regno, red, green, blue,
1358 transp);
1359 }
1360 break;
1361 case 15:
1362 dinfo->pseudo_palette[regno] = ((red & 0xf800) >> 1) |
1363 ((green & 0xf800) >> 6) |
1364 ((blue & 0xf800) >> 11);
1365 break;
1366 case 16:
1367 dinfo->pseudo_palette[regno] = (red & 0xf800) |
1368 ((green & 0xfc00) >> 5) |
1369 ((blue & 0xf800) >> 11);
1370 break;
1371 case 24:
1372 dinfo->pseudo_palette[regno] = ((red & 0xff00) << 8) |
1373 (green & 0xff00) |
1374 ((blue & 0xff00) >> 8);
1375 break;
1376 }
1377 return 0;
1378 }
1379
1380 static int
1381 intelfb_blank(int blank, struct fb_info *info)
1382 {
1383 intelfbhw_do_blank(blank, info);
1384 return 0;
1385 }
1386
1387 static int
1388 intelfb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)
1389 {
1390 intelfbhw_pan_display(var, info);
1391 return 0;
1392 }
1393
1394 /* When/if we have our own ioctls. */
1395 static int
1396 intelfb_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
1397 unsigned long arg, struct fb_info *info)
1398 {
1399 int retval = 0;
1400
1401 return retval;
1402 }
1403
1404 static void
1405 intelfb_fillrect (struct fb_info *info, const struct fb_fillrect *rect)
1406 {
1407 struct intelfb_info *dinfo = GET_DINFO(info);
1408 u32 rop, color;
1409
1410 #if VERBOSE > 0
1411 DBG_MSG("intelfb_fillrect\n");
1412 #endif
1413
1414 if (!ACCEL(dinfo, info) || dinfo->depth == 4)
1415 return cfb_fillrect(info, rect);
1416
1417 if (rect->rop == ROP_COPY)
1418 rop = PAT_ROP_GXCOPY;
1419 else // ROP_XOR
1420 rop = PAT_ROP_GXXOR;
1421
1422 if (dinfo->depth != 8)
1423 color = dinfo->pseudo_palette[rect->color];
1424 else
1425 color = rect->color;
1426
1427 intelfbhw_do_fillrect(dinfo, rect->dx, rect->dy,
1428 rect->width, rect->height, color,
1429 dinfo->pitch, info->var.bits_per_pixel,
1430 rop);
1431 }
1432
1433 static void
1434 intelfb_copyarea(struct fb_info *info, const struct fb_copyarea *region)
1435 {
1436 struct intelfb_info *dinfo = GET_DINFO(info);
1437
1438 #if VERBOSE > 0
1439 DBG_MSG("intelfb_copyarea\n");
1440 #endif
1441
1442 if (!ACCEL(dinfo, info) || dinfo->depth == 4)
1443 return cfb_copyarea(info, region);
1444
1445 intelfbhw_do_bitblt(dinfo, region->sx, region->sy, region->dx,
1446 region->dy, region->width, region->height,
1447 dinfo->pitch, info->var.bits_per_pixel);
1448 }
1449
1450 static void
1451 intelfb_imageblit(struct fb_info *info, const struct fb_image *image)
1452 {
1453 struct intelfb_info *dinfo = GET_DINFO(info);
1454 u32 fgcolor, bgcolor;
1455
1456 #if VERBOSE > 0
1457 DBG_MSG("intelfb_imageblit\n");
1458 #endif
1459
1460 if (!ACCEL(dinfo, info) || dinfo->depth == 4
1461 || image->depth != 1)
1462 return cfb_imageblit(info, image);
1463
1464 if (dinfo->depth != 8) {
1465 fgcolor = dinfo->pseudo_palette[image->fg_color];
1466 bgcolor = dinfo->pseudo_palette[image->bg_color];
1467 } else {
1468 fgcolor = image->fg_color;
1469 bgcolor = image->bg_color;
1470 }
1471
1472 if (!intelfbhw_do_drawglyph(dinfo, fgcolor, bgcolor, image->width,
1473 image->height, image->data,
1474 image->dx, image->dy,
1475 dinfo->pitch, info->var.bits_per_pixel))
1476 return cfb_imageblit(info, image);
1477 }
1478
1479 static int
1480 intelfb_cursor(struct fb_info *info, struct fb_cursor *cursor)
1481 {
1482 struct intelfb_info *dinfo = GET_DINFO(info);
1483
1484 #if VERBOSE > 0
1485 DBG_MSG("intelfb_cursor\n");
1486 #endif
1487
1488 if (!dinfo->hwcursor)
1489 return soft_cursor(info, cursor);
1490
1491 intelfbhw_cursor_hide(dinfo);
1492
1493 /* If XFree killed the cursor - restore it */
1494 if (INREG(CURSOR_A_BASEADDR) != dinfo->cursor.offset << 12) {
1495 u32 fg, bg;
1496
1497 DBG_MSG("the cursor was killed - restore it !!\n");
1498 DBG_MSG("size %d, %d pos %d, %d\n",
1499 cursor->image.width, cursor->image.height,
1500 cursor->image.dx, cursor->image.dy);
1501
1502 intelfbhw_cursor_init(dinfo);
1503 intelfbhw_cursor_reset(dinfo);
1504 intelfbhw_cursor_setpos(dinfo, cursor->image.dx,
1505 cursor->image.dy);
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 intelfbhw_cursor_setcolor(dinfo, bg, fg);
1515 intelfbhw_cursor_load(dinfo, cursor->image.width,
1516 cursor->image.height,
1517 dinfo->cursor_src);
1518
1519 if (cursor->enable)
1520 intelfbhw_cursor_show(dinfo);
1521 return 0;
1522 }
1523
1524 if (cursor->set & FB_CUR_SETPOS) {
1525 u32 dx, dy;
1526
1527 dx = cursor->image.dx - info->var.xoffset;
1528 dy = cursor->image.dy - info->var.yoffset;
1529
1530 intelfbhw_cursor_setpos(dinfo, dx, dy);
1531 }
1532
1533 if (cursor->set & FB_CUR_SETSIZE) {
1534 if (cursor->image.width > 64 || cursor->image.height > 64)
1535 return -ENXIO;
1536
1537 intelfbhw_cursor_reset(dinfo);
1538 }
1539
1540 if (cursor->set & FB_CUR_SETCMAP) {
1541 u32 fg, bg;
1542
1543 if (dinfo->depth != 8) {
1544 fg = dinfo->pseudo_palette[cursor->image.fg_color];
1545 bg = dinfo->pseudo_palette[cursor->image.bg_color];
1546 } else {
1547 fg = cursor->image.fg_color;
1548 bg = cursor->image.bg_color;
1549 }
1550
1551 intelfbhw_cursor_setcolor(dinfo, bg, fg);
1552 }
1553
1554 if (cursor->set & (FB_CUR_SETSHAPE | FB_CUR_SETIMAGE)) {
1555 u32 s_pitch = (ROUND_UP_TO(cursor->image.width, 8) / 8);
1556 u32 size = s_pitch * cursor->image.height;
1557 u8 *dat = (u8 *) cursor->image.data;
1558 u8 *msk = (u8 *) cursor->mask;
1559 u8 src[64];
1560 u32 i;
1561
1562 if (cursor->image.depth != 1)
1563 return -ENXIO;
1564
1565 switch (cursor->rop) {
1566 case ROP_XOR:
1567 for (i = 0; i < size; i++)
1568 src[i] = dat[i] ^ msk[i];
1569 break;
1570 case ROP_COPY:
1571 default:
1572 for (i = 0; i < size; i++)
1573 src[i] = dat[i] & msk[i];
1574 break;
1575 }
1576
1577 /* save the bitmap to restore it when XFree will
1578 make the cursor dirty */
1579 memcpy(dinfo->cursor_src, src, size);
1580
1581 intelfbhw_cursor_load(dinfo, cursor->image.width,
1582 cursor->image.height, src);
1583 }
1584
1585 if (cursor->enable)
1586 intelfbhw_cursor_show(dinfo);
1587
1588 return 0;
1589 }
1590
1591 static int
1592 intelfb_sync(struct fb_info *info)
1593 {
1594 struct intelfb_info *dinfo = GET_DINFO(info);
1595
1596 #if VERBOSE > 0
1597 DBG_MSG("intelfb_sync\n");
1598 #endif
1599
1600 if (dinfo->ring_lockup)
1601 return 0;
1602
1603 intelfbhw_do_sync(dinfo);
1604 return 0;
1605 }
1606
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