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sh_eth: fix EESIPR values for SH77{34|63}
[linux/fpc-iii.git] / drivers / video / fbdev / intelfb / intelfbdrv.c
blobff2a5d2023e1f88078c90b56746303783cbd7429
1 /*
2 * intelfb
3 *
4 * Linux framebuffer driver for Intel(R) 830M/845G/852GM/855GM/865G/915G/915GM/
5 * 945G/945GM/945GME/965G/965GM 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 * 04/2008 - Version 0.9.5
104 * Add support for 965G/965GM. (Maik Broemme <mbroemme@plusserver.de>)
105 *
106 * 08/2008 - Version 0.9.6
107 * Add support for 945GME. (Phil Endecott <spam_from_intelfb@chezphil.org>)
108 */
109
110 #include <linux/module.h>
111 #include <linux/kernel.h>
112 #include <linux/errno.h>
113 #include <linux/string.h>
114 #include <linux/mm.h>
115 #include <linux/slab.h>
116 #include <linux/delay.h>
117 #include <linux/fb.h>
118 #include <linux/ioport.h>
119 #include <linux/init.h>
120 #include <linux/pci.h>
121 #include <linux/vmalloc.h>
122 #include <linux/pagemap.h>
123 #include <linux/screen_info.h>
124
125 #include <asm/io.h>
126
127 #include "intelfb.h"
128 #include "intelfbhw.h"
129 #include "../edid.h"
130
131 static void get_initial_mode(struct intelfb_info *dinfo);
132 static void update_dinfo(struct intelfb_info *dinfo,
133 struct fb_var_screeninfo *var);
134 static int intelfb_open(struct fb_info *info, int user);
135 static int intelfb_release(struct fb_info *info, int user);
136 static int intelfb_check_var(struct fb_var_screeninfo *var,
137 struct fb_info *info);
138 static int intelfb_set_par(struct fb_info *info);
139 static int intelfb_setcolreg(unsigned regno, unsigned red, unsigned green,
140 unsigned blue, unsigned transp,
141 struct fb_info *info);
142
143 static int intelfb_blank(int blank, struct fb_info *info);
144 static int intelfb_pan_display(struct fb_var_screeninfo *var,
145 struct fb_info *info);
146
147 static void intelfb_fillrect(struct fb_info *info,
148 const struct fb_fillrect *rect);
149 static void intelfb_copyarea(struct fb_info *info,
150 const struct fb_copyarea *region);
151 static void intelfb_imageblit(struct fb_info *info,
152 const struct fb_image *image);
153 static int intelfb_cursor(struct fb_info *info,
154 struct fb_cursor *cursor);
155
156 static int intelfb_sync(struct fb_info *info);
157
158 static int intelfb_ioctl(struct fb_info *info,
159 unsigned int cmd, unsigned long arg);
160
161 static int intelfb_pci_register(struct pci_dev *pdev,
162 const struct pci_device_id *ent);
163 static void intelfb_pci_unregister(struct pci_dev *pdev);
164 static int intelfb_set_fbinfo(struct intelfb_info *dinfo);
165
166 /*
167 * Limiting the class to PCI_CLASS_DISPLAY_VGA prevents function 1 of the
168 * mobile chipsets from being registered.
169 */
170 #if DETECT_VGA_CLASS_ONLY
171 #define INTELFB_CLASS_MASK ~0 << 8
172 #else
173 #define INTELFB_CLASS_MASK 0
174 #endif
175
176 static struct pci_device_id intelfb_pci_table[] = {
177 { 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 },
178 { 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 },
179 { 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 },
180 { 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 },
181 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_854, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_854 },
182 { 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 },
183 { 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 },
184 { 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 },
185 { 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 },
186 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_945GME, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_945GME },
187 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_965G, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_965G },
188 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_965GM, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_965GM },
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_open = intelfb_open,
199 .fb_release = intelfb_release,
200 .fb_check_var = intelfb_check_var,
201 .fb_set_par = intelfb_set_par,
202 .fb_setcolreg = intelfb_setcolreg,
203 .fb_blank = intelfb_blank,
204 .fb_pan_display = intelfb_pan_display,
205 .fb_fillrect = intelfb_fillrect,
206 .fb_copyarea = intelfb_copyarea,
207 .fb_imageblit = intelfb_imageblit,
208 .fb_cursor = intelfb_cursor,
209 .fb_sync = intelfb_sync,
210 .fb_ioctl = intelfb_ioctl
211 };
212
213 /* PCI driver module table */
214 static struct pci_driver intelfb_driver = {
215 .name = "intelfb",
216 .id_table = intelfb_pci_table,
217 .probe = intelfb_pci_register,
218 .remove = intelfb_pci_unregister,
219 };
220
221 /* Module description/parameters */
222 MODULE_AUTHOR("David Dawes <dawes@tungstengraphics.com>, "
223 "Sylvain Meyer <sylvain.meyer@worldonline.fr>");
224 MODULE_DESCRIPTION("Framebuffer driver for Intel(R) " SUPPORTED_CHIPSETS
225 " chipsets");
226 MODULE_LICENSE("Dual BSD/GPL");
227 MODULE_DEVICE_TABLE(pci, intelfb_pci_table);
228
229 static bool accel = 1;
230 static int vram = 4;
231 static bool hwcursor = 0;
232 static bool mtrr = 1;
233 static bool fixed = 0;
234 static bool noinit = 0;
235 static bool noregister = 0;
236 static bool probeonly = 0;
237 static bool idonly = 0;
238 static int bailearly = 0;
239 static int voffset = 48;
240 static char *mode = NULL;
241
242 module_param(accel, bool, S_IRUGO);
243 MODULE_PARM_DESC(accel, "Enable hardware acceleration");
244 module_param(vram, int, S_IRUGO);
245 MODULE_PARM_DESC(vram, "System RAM to allocate to framebuffer in MiB");
246 module_param(voffset, int, S_IRUGO);
247 MODULE_PARM_DESC(voffset, "Offset of framebuffer in MiB");
248 module_param(hwcursor, bool, S_IRUGO);
249 MODULE_PARM_DESC(hwcursor, "Enable HW cursor");
250 module_param(mtrr, bool, S_IRUGO);
251 MODULE_PARM_DESC(mtrr, "Enable MTRR support");
252 module_param(fixed, bool, S_IRUGO);
253 MODULE_PARM_DESC(fixed, "Disable mode switching");
254 module_param(noinit, bool, 0);
255 MODULE_PARM_DESC(noinit, "Don't initialise graphics mode when loading");
256 module_param(noregister, bool, 0);
257 MODULE_PARM_DESC(noregister, "Don't register, just probe and exit (debug)");
258 module_param(probeonly, bool, 0);
259 MODULE_PARM_DESC(probeonly, "Do a minimal probe (debug)");
260 module_param(idonly, bool, 0);
261 MODULE_PARM_DESC(idonly, "Just identify without doing anything else (debug)");
262 module_param(bailearly, int, 0);
263 MODULE_PARM_DESC(bailearly, "Bail out early, depending on value (debug)");
264 module_param(mode, charp, S_IRUGO);
265 MODULE_PARM_DESC(mode,
266 "Initial video mode \"<xres>x<yres>[-<depth>][@<refresh>]\"");
267
268 #ifndef MODULE
269 #define OPT_EQUAL(opt, name) (!strncmp(opt, name, strlen(name)))
270 #define OPT_INTVAL(opt, name) simple_strtoul(opt + strlen(name) + 1, NULL, 0)
271 #define OPT_STRVAL(opt, name) (opt + strlen(name))
272
273 static __inline__ char * 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 get_opt_int(const char *this_opt, const char *name,
292 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 get_opt_bool(const char *this_opt, const char *name,
305 bool *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 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 intelfb_init(void)
377 {
378 #ifndef MODULE
379 char *option = NULL;
380 #endif
381
382 DBG_MSG("intelfb_init\n");
383
384 INF_MSG("Framebuffer driver for "
385 "Intel(R) " SUPPORTED_CHIPSETS " chipsets\n");
386 INF_MSG("Version " INTELFB_VERSION "\n");
387
388 if (idonly)
389 return -ENODEV;
390
391 #ifndef MODULE
392 if (fb_get_options("intelfb", &option))
393 return -ENODEV;
394 intelfb_setup(option);
395 #endif
396
397 return pci_register_driver(&intelfb_driver);
398 }
399
400 static void __exit intelfb_exit(void)
401 {
402 DBG_MSG("intelfb_exit\n");
403 pci_unregister_driver(&intelfb_driver);
404 }
405
406 module_init(intelfb_init);
407 module_exit(intelfb_exit);
408
409 /***************************************************************
410 * driver init / cleanup *
411 ***************************************************************/
412
413 static void cleanup(struct intelfb_info *dinfo)
414 {
415 DBG_MSG("cleanup\n");
416
417 if (!dinfo)
418 return;
419
420 intelfbhw_disable_irq(dinfo);
421
422 fb_dealloc_cmap(&dinfo->info->cmap);
423 kfree(dinfo->info->pixmap.addr);
424
425 if (dinfo->registered)
426 unregister_framebuffer(dinfo->info);
427
428 arch_phys_wc_del(dinfo->wc_cookie);
429
430 if (dinfo->fbmem_gart && dinfo->gtt_fb_mem) {
431 agp_unbind_memory(dinfo->gtt_fb_mem);
432 agp_free_memory(dinfo->gtt_fb_mem);
433 }
434 if (dinfo->gtt_cursor_mem) {
435 agp_unbind_memory(dinfo->gtt_cursor_mem);
436 agp_free_memory(dinfo->gtt_cursor_mem);
437 }
438 if (dinfo->gtt_ring_mem) {
439 agp_unbind_memory(dinfo->gtt_ring_mem);
440 agp_free_memory(dinfo->gtt_ring_mem);
441 }
442
443 #ifdef CONFIG_FB_INTEL_I2C
444 /* un-register I2C bus */
445 intelfb_delete_i2c_busses(dinfo);
446 #endif
447
448 if (dinfo->mmio_base)
449 iounmap((void __iomem *)dinfo->mmio_base);
450 if (dinfo->aperture.virtual)
451 iounmap((void __iomem *)dinfo->aperture.virtual);
452
453 if (dinfo->flag & INTELFB_MMIO_ACQUIRED)
454 release_mem_region(dinfo->mmio_base_phys, INTEL_REG_SIZE);
455 if (dinfo->flag & INTELFB_FB_ACQUIRED)
456 release_mem_region(dinfo->aperture.physical,
457 dinfo->aperture.size);
458 framebuffer_release(dinfo->info);
459 }
460
461 #define bailout(dinfo) do { \
462 DBG_MSG("bailout\n"); \
463 cleanup(dinfo); \
464 INF_MSG("Not going to register framebuffer, exiting...\n"); \
465 return -ENODEV; \
466 } while (0)
467
468
469 static int intelfb_pci_register(struct pci_dev *pdev,
470 const struct pci_device_id *ent)
471 {
472 struct fb_info *info;
473 struct intelfb_info *dinfo;
474 int i, err, dvo;
475 int aperture_size, stolen_size;
476 struct agp_kern_info gtt_info;
477 int agp_memtype;
478 const char *s;
479 struct agp_bridge_data *bridge;
480 int aperture_bar = 0;
481 int mmio_bar = 1;
482 int offset;
483
484 DBG_MSG("intelfb_pci_register\n");
485
486 num_registered++;
487 if (num_registered != 1) {
488 ERR_MSG("Attempted to register %d devices "
489 "(should be only 1).\n", num_registered);
490 return -ENODEV;
491 }
492
493 info = framebuffer_alloc(sizeof(struct intelfb_info), &pdev->dev);
494 if (!info) {
495 ERR_MSG("Could not allocate memory for intelfb_info.\n");
496 return -ENODEV;
497 }
498 if (fb_alloc_cmap(&info->cmap, 256, 1) < 0) {
499 ERR_MSG("Could not allocate cmap for intelfb_info.\n");
500 goto err_out_cmap;
501 }
502
503 dinfo = info->par;
504 dinfo->info = info;
505 dinfo->fbops = &intel_fb_ops;
506 dinfo->pdev = pdev;
507
508 /* Reserve pixmap space. */
509 info->pixmap.addr = kzalloc(64 * 1024, GFP_KERNEL);
510 if (info->pixmap.addr == NULL) {
511 ERR_MSG("Cannot reserve pixmap memory.\n");
512 goto err_out_pixmap;
513 }
514
515 /* set early this option because it could be changed by tv encoder
516 driver */
517 dinfo->fixed_mode = fixed;
518
519 /* Enable device. */
520 if ((err = pci_enable_device(pdev))) {
521 ERR_MSG("Cannot enable device.\n");
522 cleanup(dinfo);
523 return -ENODEV;
524 }
525
526 /* Set base addresses. */
527 if ((ent->device == PCI_DEVICE_ID_INTEL_915G) ||
528 (ent->device == PCI_DEVICE_ID_INTEL_915GM) ||
529 (ent->device == PCI_DEVICE_ID_INTEL_945G) ||
530 (ent->device == PCI_DEVICE_ID_INTEL_945GM) ||
531 (ent->device == PCI_DEVICE_ID_INTEL_945GME) ||
532 (ent->device == PCI_DEVICE_ID_INTEL_965G) ||
533 (ent->device == PCI_DEVICE_ID_INTEL_965GM)) {
534
535 aperture_bar = 2;
536 mmio_bar = 0;
537 }
538 dinfo->aperture.physical = pci_resource_start(pdev, aperture_bar);
539 dinfo->aperture.size = pci_resource_len(pdev, aperture_bar);
540 dinfo->mmio_base_phys = pci_resource_start(pdev, mmio_bar);
541 DBG_MSG("fb aperture: 0x%llx/0x%llx, MMIO region: 0x%llx/0x%llx\n",
542 (unsigned long long)pci_resource_start(pdev, aperture_bar),
543 (unsigned long long)pci_resource_len(pdev, aperture_bar),
544 (unsigned long long)pci_resource_start(pdev, mmio_bar),
545 (unsigned long long)pci_resource_len(pdev, mmio_bar));
546
547 /* Reserve the fb and MMIO regions */
548 if (!request_mem_region(dinfo->aperture.physical, dinfo->aperture.size,
549 INTELFB_MODULE_NAME)) {
550 ERR_MSG("Cannot reserve FB region.\n");
551 cleanup(dinfo);
552 return -ENODEV;
553 }
554
555 dinfo->flag |= INTELFB_FB_ACQUIRED;
556
557 if (!request_mem_region(dinfo->mmio_base_phys,
558 INTEL_REG_SIZE,
559 INTELFB_MODULE_NAME)) {
560 ERR_MSG("Cannot reserve MMIO region.\n");
561 cleanup(dinfo);
562 return -ENODEV;
563 }
564
565 dinfo->flag |= INTELFB_MMIO_ACQUIRED;
566
567 /* Get the chipset info. */
568 dinfo->pci_chipset = pdev->device;
569
570 if (intelfbhw_get_chipset(pdev, dinfo)) {
571 cleanup(dinfo);
572 return -ENODEV;
573 }
574
575 if (intelfbhw_get_memory(pdev, &aperture_size,&stolen_size)) {
576 cleanup(dinfo);
577 return -ENODEV;
578 }
579
580 INF_MSG("%02x:%02x.%d: %s, aperture size %dMB, "
581 "stolen memory %dkB\n",
582 pdev->bus->number, PCI_SLOT(pdev->devfn),
583 PCI_FUNC(pdev->devfn), dinfo->name,
584 BtoMB(aperture_size), BtoKB(stolen_size));
585
586 /* Set these from the options. */
587 dinfo->accel = accel;
588 dinfo->hwcursor = hwcursor;
589
590 if (NOACCEL_CHIPSET(dinfo) && dinfo->accel == 1) {
591 INF_MSG("Acceleration is not supported for the %s chipset.\n",
592 dinfo->name);
593 dinfo->accel = 0;
594 }
595
596 /* Framebuffer parameters - Use all the stolen memory if >= vram */
597 if (ROUND_UP_TO_PAGE(stolen_size) >= MB(vram)) {
598 dinfo->fb.size = ROUND_UP_TO_PAGE(stolen_size);
599 dinfo->fbmem_gart = 0;
600 } else {
601 dinfo->fb.size = MB(vram);
602 dinfo->fbmem_gart = 1;
603 }
604
605 /* Allocate space for the ring buffer and HW cursor if enabled. */
606 if (dinfo->accel) {
607 dinfo->ring.size = RINGBUFFER_SIZE;
608 dinfo->ring_tail_mask = dinfo->ring.size - 1;
609 }
610 if (dinfo->hwcursor)
611 dinfo->cursor.size = HW_CURSOR_SIZE;
612
613 /* Use agpgart to manage the GATT */
614 if (!(bridge = agp_backend_acquire(pdev))) {
615 ERR_MSG("cannot acquire agp\n");
616 cleanup(dinfo);
617 return -ENODEV;
618 }
619
620 /* get the current gatt info */
621 if (agp_copy_info(bridge, &gtt_info)) {
622 ERR_MSG("cannot get agp info\n");
623 agp_backend_release(bridge);
624 cleanup(dinfo);
625 return -ENODEV;
626 }
627
628 if (MB(voffset) < stolen_size)
629 offset = (stolen_size >> 12);
630 else
631 offset = ROUND_UP_TO_PAGE(MB(voffset))/GTT_PAGE_SIZE;
632
633 /* set the mem offsets - set them after the already used pages */
634 if (dinfo->accel)
635 dinfo->ring.offset = offset + gtt_info.current_memory;
636 if (dinfo->hwcursor)
637 dinfo->cursor.offset = offset +
638 + gtt_info.current_memory + (dinfo->ring.size >> 12);
639 if (dinfo->fbmem_gart)
640 dinfo->fb.offset = offset +
641 + gtt_info.current_memory + (dinfo->ring.size >> 12)
642 + (dinfo->cursor.size >> 12);
643
644 /* Allocate memories (which aren't stolen) */
645 /* Map the fb and MMIO regions */
646 /* ioremap only up to the end of used aperture */
647 dinfo->aperture.virtual = (u8 __iomem *)ioremap_wc
648 (dinfo->aperture.physical, ((offset + dinfo->fb.offset) << 12)
649 + dinfo->fb.size);
650 if (!dinfo->aperture.virtual) {
651 ERR_MSG("Cannot remap FB region.\n");
652 agp_backend_release(bridge);
653 cleanup(dinfo);
654 return -ENODEV;
655 }
656
657 dinfo->mmio_base =
658 (u8 __iomem *)ioremap_nocache(dinfo->mmio_base_phys,
659 INTEL_REG_SIZE);
660 if (!dinfo->mmio_base) {
661 ERR_MSG("Cannot remap MMIO region.\n");
662 agp_backend_release(bridge);
663 cleanup(dinfo);
664 return -ENODEV;
665 }
666
667 if (dinfo->accel) {
668 if (!(dinfo->gtt_ring_mem =
669 agp_allocate_memory(bridge, dinfo->ring.size >> 12,
670 AGP_NORMAL_MEMORY))) {
671 ERR_MSG("cannot allocate ring buffer memory\n");
672 agp_backend_release(bridge);
673 cleanup(dinfo);
674 return -ENOMEM;
675 }
676 if (agp_bind_memory(dinfo->gtt_ring_mem,
677 dinfo->ring.offset)) {
678 ERR_MSG("cannot bind ring buffer memory\n");
679 agp_backend_release(bridge);
680 cleanup(dinfo);
681 return -EBUSY;
682 }
683 dinfo->ring.physical = dinfo->aperture.physical
684 + (dinfo->ring.offset << 12);
685 dinfo->ring.virtual = dinfo->aperture.virtual
686 + (dinfo->ring.offset << 12);
687 dinfo->ring_head = 0;
688 }
689 if (dinfo->hwcursor) {
690 agp_memtype = dinfo->mobile ? AGP_PHYSICAL_MEMORY
691 : AGP_NORMAL_MEMORY;
692 if (!(dinfo->gtt_cursor_mem =
693 agp_allocate_memory(bridge, dinfo->cursor.size >> 12,
694 agp_memtype))) {
695 ERR_MSG("cannot allocate cursor memory\n");
696 agp_backend_release(bridge);
697 cleanup(dinfo);
698 return -ENOMEM;
699 }
700 if (agp_bind_memory(dinfo->gtt_cursor_mem,
701 dinfo->cursor.offset)) {
702 ERR_MSG("cannot bind cursor memory\n");
703 agp_backend_release(bridge);
704 cleanup(dinfo);
705 return -EBUSY;
706 }
707 if (dinfo->mobile)
708 dinfo->cursor.physical
709 = dinfo->gtt_cursor_mem->physical;
710 else
711 dinfo->cursor.physical = dinfo->aperture.physical
712 + (dinfo->cursor.offset << 12);
713 dinfo->cursor.virtual = dinfo->aperture.virtual
714 + (dinfo->cursor.offset << 12);
715 }
716 if (dinfo->fbmem_gart) {
717 if (!(dinfo->gtt_fb_mem =
718 agp_allocate_memory(bridge, dinfo->fb.size >> 12,
719 AGP_NORMAL_MEMORY))) {
720 WRN_MSG("cannot allocate framebuffer memory - use "
721 "the stolen one\n");
722 dinfo->fbmem_gart = 0;
723 }
724 if (agp_bind_memory(dinfo->gtt_fb_mem,
725 dinfo->fb.offset)) {
726 WRN_MSG("cannot bind framebuffer memory - use "
727 "the stolen one\n");
728 dinfo->fbmem_gart = 0;
729 }
730 }
731
732 /* update framebuffer memory parameters */
733 if (!dinfo->fbmem_gart)
734 dinfo->fb.offset = 0; /* starts at offset 0 */
735 dinfo->fb.physical = dinfo->aperture.physical
736 + (dinfo->fb.offset << 12);
737 dinfo->fb.virtual = dinfo->aperture.virtual + (dinfo->fb.offset << 12);
738 dinfo->fb_start = dinfo->fb.offset << 12;
739
740 /* release agpgart */
741 agp_backend_release(bridge);
742
743 if (mtrr)
744 dinfo->wc_cookie = arch_phys_wc_add(dinfo->aperture.physical,
745 dinfo->aperture.size);
746
747 DBG_MSG("fb: 0x%x(+ 0x%x)/0x%x (0x%p)\n",
748 dinfo->fb.physical, dinfo->fb.offset, dinfo->fb.size,
749 dinfo->fb.virtual);
750 DBG_MSG("MMIO: 0x%x/0x%x (0x%p)\n",
751 dinfo->mmio_base_phys, INTEL_REG_SIZE,
752 dinfo->mmio_base);
753 DBG_MSG("ring buffer: 0x%x/0x%x (0x%p)\n",
754 dinfo->ring.physical, dinfo->ring.size,
755 dinfo->ring.virtual);
756 DBG_MSG("HW cursor: 0x%x/0x%x (0x%p) (offset 0x%x) (phys 0x%x)\n",
757 dinfo->cursor.physical, dinfo->cursor.size,
758 dinfo->cursor.virtual, dinfo->cursor.offset,
759 dinfo->cursor.physical);
760
761 DBG_MSG("options: vram = %d, accel = %d, hwcursor = %d, fixed = %d, "
762 "noinit = %d\n", vram, accel, hwcursor, fixed, noinit);
763 DBG_MSG("options: mode = \"%s\"\n", mode ? mode : "");
764
765 if (probeonly)
766 bailout(dinfo);
767
768 /*
769 * Check if the LVDS port or any DVO ports are enabled. If so,
770 * don't allow mode switching
771 */
772 dvo = intelfbhw_check_non_crt(dinfo);
773 if (dvo) {
774 dinfo->fixed_mode = 1;
775 WRN_MSG("Non-CRT device is enabled ( ");
776 i = 0;
777 while (dvo) {
778 if (dvo & 1) {
779 s = intelfbhw_dvo_to_string(1 << i);
780 if (s)
781 printk("%s ", s);
782 }
783 dvo >>= 1;
784 ++i;
785 }
786 printk("). Disabling mode switching.\n");
787 }
788
789 if (bailearly == 1)
790 bailout(dinfo);
791
792 if (FIXED_MODE(dinfo) &&
793 screen_info.orig_video_isVGA != VIDEO_TYPE_VLFB) {
794 ERR_MSG("Video mode must be programmed at boot time.\n");
795 cleanup(dinfo);
796 return -ENODEV;
797 }
798
799 if (bailearly == 2)
800 bailout(dinfo);
801
802 /* Initialise dinfo and related data. */
803 /* If an initial mode was programmed at boot time, get its details. */
804 if (screen_info.orig_video_isVGA == VIDEO_TYPE_VLFB)
805 get_initial_mode(dinfo);
806
807 if (bailearly == 3)
808 bailout(dinfo);
809
810 if (FIXED_MODE(dinfo)) /* remap fb address */
811 update_dinfo(dinfo, &dinfo->initial_var);
812
813 if (bailearly == 4)
814 bailout(dinfo);
815
816
817 if (intelfb_set_fbinfo(dinfo)) {
818 cleanup(dinfo);
819 return -ENODEV;
820 }
821
822 if (bailearly == 5)
823 bailout(dinfo);
824
825 #ifdef CONFIG_FB_INTEL_I2C
826 /* register I2C bus */
827 intelfb_create_i2c_busses(dinfo);
828 #endif
829
830 if (bailearly == 6)
831 bailout(dinfo);
832
833 pci_set_drvdata(pdev, dinfo);
834
835 /* Save the initial register state. */
836 i = intelfbhw_read_hw_state(dinfo, &dinfo->save_state,
837 bailearly > 6 ? bailearly - 6 : 0);
838 if (i != 0) {
839 DBG_MSG("intelfbhw_read_hw_state returned %d\n", i);
840 bailout(dinfo);
841 }
842
843 intelfbhw_print_hw_state(dinfo, &dinfo->save_state);
844
845 if (bailearly == 18)
846 bailout(dinfo);
847
848 /* read active pipe */
849 dinfo->pipe = intelfbhw_active_pipe(&dinfo->save_state);
850
851 /* Cursor initialisation */
852 if (dinfo->hwcursor) {
853 intelfbhw_cursor_init(dinfo);
854 intelfbhw_cursor_reset(dinfo);
855 }
856
857 if (bailearly == 19)
858 bailout(dinfo);
859
860 /* 2d acceleration init */
861 if (dinfo->accel)
862 intelfbhw_2d_start(dinfo);
863
864 if (bailearly == 20)
865 bailout(dinfo);
866
867 if (noregister)
868 bailout(dinfo);
869
870 if (register_framebuffer(dinfo->info) < 0) {
871 ERR_MSG("Cannot register framebuffer.\n");
872 cleanup(dinfo);
873 return -ENODEV;
874 }
875
876 dinfo->registered = 1;
877 dinfo->open = 0;
878
879 init_waitqueue_head(&dinfo->vsync.wait);
880 spin_lock_init(&dinfo->int_lock);
881 dinfo->irq_flags = 0;
882 dinfo->vsync.pan_display = 0;
883 dinfo->vsync.pan_offset = 0;
884
885 return 0;
886
887 err_out_pixmap:
888 fb_dealloc_cmap(&info->cmap);
889 err_out_cmap:
890 framebuffer_release(info);
891 return -ENODEV;
892 }
893
894 static void intelfb_pci_unregister(struct pci_dev *pdev)
895 {
896 struct intelfb_info *dinfo = pci_get_drvdata(pdev);
897
898 DBG_MSG("intelfb_pci_unregister\n");
899
900 if (!dinfo)
901 return;
902
903 cleanup(dinfo);
904 }
905
906 /***************************************************************
907 * helper functions *
908 ***************************************************************/
909
910 int __inline__ intelfb_var_to_depth(const struct fb_var_screeninfo *var)
911 {
912 DBG_MSG("intelfb_var_to_depth: bpp: %d, green.length is %d\n",
913 var->bits_per_pixel, var->green.length);
914
915 switch (var->bits_per_pixel) {
916 case 16:
917 return (var->green.length == 6) ? 16 : 15;
918 case 32:
919 return 24;
920 default:
921 return var->bits_per_pixel;
922 }
923 }
924
925
926 static __inline__ int var_to_refresh(const struct fb_var_screeninfo *var)
927 {
928 int xtot = var->xres + var->left_margin + var->right_margin +
929 var->hsync_len;
930 int ytot = var->yres + var->upper_margin + var->lower_margin +
931 var->vsync_len;
932
933 return (1000000000 / var->pixclock * 1000 + 500) / xtot / ytot;
934 }
935
936 /***************************************************************
937 * Various intialisation functions *
938 ***************************************************************/
939
940 static void get_initial_mode(struct intelfb_info *dinfo)
941 {
942 struct fb_var_screeninfo *var;
943 int xtot, ytot;
944
945 DBG_MSG("get_initial_mode\n");
946
947 dinfo->initial_vga = 1;
948 dinfo->initial_fb_base = screen_info.lfb_base;
949 dinfo->initial_video_ram = screen_info.lfb_size * KB(64);
950 dinfo->initial_pitch = screen_info.lfb_linelength;
951
952 var = &dinfo->initial_var;
953 memset(var, 0, sizeof(*var));
954 var->xres = screen_info.lfb_width;
955 var->yres = screen_info.lfb_height;
956 var->bits_per_pixel = screen_info.lfb_depth;
957 switch (screen_info.lfb_depth) {
958 case 15:
959 var->bits_per_pixel = 16;
960 break;
961 case 24:
962 var->bits_per_pixel = 32;
963 break;
964 }
965
966 DBG_MSG("Initial info: FB is 0x%x/0x%x (%d kByte)\n",
967 dinfo->initial_fb_base, dinfo->initial_video_ram,
968 BtoKB(dinfo->initial_video_ram));
969
970 DBG_MSG("Initial info: mode is %dx%d-%d (%d)\n",
971 var->xres, var->yres, var->bits_per_pixel,
972 dinfo->initial_pitch);
973
974 /* Dummy timing values (assume 60Hz) */
975 var->left_margin = (var->xres / 8) & 0xf8;
976 var->right_margin = 32;
977 var->upper_margin = 16;
978 var->lower_margin = 4;
979 var->hsync_len = (var->xres / 8) & 0xf8;
980 var->vsync_len = 4;
981
982 xtot = var->xres + var->left_margin +
983 var->right_margin + var->hsync_len;
984 ytot = var->yres + var->upper_margin +
985 var->lower_margin + var->vsync_len;
986 var->pixclock = 10000000 / xtot * 1000 / ytot * 100 / 60;
987
988 var->height = -1;
989 var->width = -1;
990
991 if (var->bits_per_pixel > 8) {
992 var->red.offset = screen_info.red_pos;
993 var->red.length = screen_info.red_size;
994 var->green.offset = screen_info.green_pos;
995 var->green.length = screen_info.green_size;
996 var->blue.offset = screen_info.blue_pos;
997 var->blue.length = screen_info.blue_size;
998 var->transp.offset = screen_info.rsvd_pos;
999 var->transp.length = screen_info.rsvd_size;
1000 } else {
1001 var->red.length = 8;
1002 var->green.length = 8;
1003 var->blue.length = 8;
1004 }
1005 }
1006
1007 static int intelfb_init_var(struct intelfb_info *dinfo)
1008 {
1009 struct fb_var_screeninfo *var;
1010 int msrc = 0;
1011
1012 DBG_MSG("intelfb_init_var\n");
1013
1014 var = &dinfo->info->var;
1015 if (FIXED_MODE(dinfo)) {
1016 memcpy(var, &dinfo->initial_var,
1017 sizeof(struct fb_var_screeninfo));
1018 msrc = 5;
1019 } else {
1020 const u8 *edid_s = fb_firmware_edid(&dinfo->pdev->dev);
1021 u8 *edid_d = NULL;
1022
1023 if (edid_s) {
1024 edid_d = kmemdup(edid_s, EDID_LENGTH, GFP_KERNEL);
1025
1026 if (edid_d) {
1027 fb_edid_to_monspecs(edid_d,
1028 &dinfo->info->monspecs);
1029 kfree(edid_d);
1030 }
1031 }
1032
1033 if (mode) {
1034 printk("intelfb: Looking for mode in private "
1035 "database\n");
1036 msrc = fb_find_mode(var, dinfo->info, mode,
1037 dinfo->info->monspecs.modedb,
1038 dinfo->info->monspecs.modedb_len,
1039 NULL, 0);
1040
1041 if (msrc && msrc > 1) {
1042 printk("intelfb: No mode in private database, "
1043 "intelfb: looking for mode in global "
1044 "database ");
1045 msrc = fb_find_mode(var, dinfo->info, mode,
1046 NULL, 0, NULL, 0);
1047
1048 if (msrc)
1049 msrc |= 8;
1050 }
1051
1052 }
1053
1054 if (!msrc)
1055 msrc = fb_find_mode(var, dinfo->info, PREFERRED_MODE,
1056 NULL, 0, NULL, 0);
1057 }
1058
1059 if (!msrc) {
1060 ERR_MSG("Cannot find a suitable video mode.\n");
1061 return 1;
1062 }
1063
1064 INF_MSG("Initial video mode is %dx%d-%d@%d.\n", var->xres, var->yres,
1065 var->bits_per_pixel, var_to_refresh(var));
1066
1067 DBG_MSG("Initial video mode is from %d.\n", msrc);
1068
1069 #if ALLOCATE_FOR_PANNING
1070 /* Allow use of half of the video ram for panning */
1071 var->xres_virtual = var->xres;
1072 var->yres_virtual =
1073 dinfo->fb.size / 2 / (var->bits_per_pixel * var->xres);
1074 if (var->yres_virtual < var->yres)
1075 var->yres_virtual = var->yres;
1076 #else
1077 var->yres_virtual = var->yres;
1078 #endif
1079
1080 if (dinfo->accel)
1081 var->accel_flags |= FB_ACCELF_TEXT;
1082 else
1083 var->accel_flags &= ~FB_ACCELF_TEXT;
1084
1085 return 0;
1086 }
1087
1088 static int intelfb_set_fbinfo(struct intelfb_info *dinfo)
1089 {
1090 struct fb_info *info = dinfo->info;
1091
1092 DBG_MSG("intelfb_set_fbinfo\n");
1093
1094 info->flags = FBINFO_FLAG_DEFAULT;
1095 info->fbops = &intel_fb_ops;
1096 info->pseudo_palette = dinfo->pseudo_palette;
1097
1098 info->pixmap.size = 64*1024;
1099 info->pixmap.buf_align = 8;
1100 info->pixmap.access_align = 32;
1101 info->pixmap.flags = FB_PIXMAP_SYSTEM;
1102
1103 if (intelfb_init_var(dinfo))
1104 return 1;
1105
1106 info->pixmap.scan_align = 1;
1107 strcpy(info->fix.id, dinfo->name);
1108 info->fix.smem_start = dinfo->fb.physical;
1109 info->fix.smem_len = dinfo->fb.size;
1110 info->fix.type = FB_TYPE_PACKED_PIXELS;
1111 info->fix.type_aux = 0;
1112 info->fix.xpanstep = 8;
1113 info->fix.ypanstep = 1;
1114 info->fix.ywrapstep = 0;
1115 info->fix.mmio_start = dinfo->mmio_base_phys;
1116 info->fix.mmio_len = INTEL_REG_SIZE;
1117 info->fix.accel = FB_ACCEL_I830;
1118 update_dinfo(dinfo, &info->var);
1119
1120 return 0;
1121 }
1122
1123 /* Update dinfo to match the active video mode. */
1124 static void update_dinfo(struct intelfb_info *dinfo,
1125 struct fb_var_screeninfo *var)
1126 {
1127 DBG_MSG("update_dinfo\n");
1128
1129 dinfo->bpp = var->bits_per_pixel;
1130 dinfo->depth = intelfb_var_to_depth(var);
1131 dinfo->xres = var->xres;
1132 dinfo->yres = var->xres;
1133 dinfo->pixclock = var->pixclock;
1134
1135 dinfo->info->fix.visual = dinfo->visual;
1136 dinfo->info->fix.line_length = dinfo->pitch;
1137
1138 switch (dinfo->bpp) {
1139 case 8:
1140 dinfo->visual = FB_VISUAL_PSEUDOCOLOR;
1141 dinfo->pitch = var->xres_virtual;
1142 break;
1143 case 16:
1144 dinfo->visual = FB_VISUAL_TRUECOLOR;
1145 dinfo->pitch = var->xres_virtual * 2;
1146 break;
1147 case 32:
1148 dinfo->visual = FB_VISUAL_TRUECOLOR;
1149 dinfo->pitch = var->xres_virtual * 4;
1150 break;
1151 }
1152
1153 /* Make sure the line length is a aligned correctly. */
1154 if (IS_I9XX(dinfo))
1155 dinfo->pitch = ROUND_UP_TO(dinfo->pitch, STRIDE_ALIGNMENT_I9XX);
1156 else
1157 dinfo->pitch = ROUND_UP_TO(dinfo->pitch, STRIDE_ALIGNMENT);
1158
1159 if (FIXED_MODE(dinfo))
1160 dinfo->pitch = dinfo->initial_pitch;
1161
1162 dinfo->info->screen_base = (char __iomem *)dinfo->fb.virtual;
1163 dinfo->info->fix.line_length = dinfo->pitch;
1164 dinfo->info->fix.visual = dinfo->visual;
1165 }
1166
1167 /* fbops functions */
1168
1169 /***************************************************************
1170 * fbdev interface *
1171 ***************************************************************/
1172
1173 static int intelfb_open(struct fb_info *info, int user)
1174 {
1175 struct intelfb_info *dinfo = GET_DINFO(info);
1176
1177 if (user)
1178 dinfo->open++;
1179
1180 return 0;
1181 }
1182
1183 static int intelfb_release(struct fb_info *info, int user)
1184 {
1185 struct intelfb_info *dinfo = GET_DINFO(info);
1186
1187 if (user) {
1188 dinfo->open--;
1189 msleep(1);
1190 if (!dinfo->open)
1191 intelfbhw_disable_irq(dinfo);
1192 }
1193
1194 return 0;
1195 }
1196
1197 static int intelfb_check_var(struct fb_var_screeninfo *var,
1198 struct fb_info *info)
1199 {
1200 int change_var = 0;
1201 struct fb_var_screeninfo v;
1202 struct intelfb_info *dinfo;
1203 static int first = 1;
1204 int i;
1205 /* Good pitches to allow tiling. Don't care about pitches < 1024. */
1206 static const int pitches[] = {
1207 128 * 8,
1208 128 * 16,
1209 128 * 32,
1210 128 * 64,
1211 0
1212 };
1213
1214 DBG_MSG("intelfb_check_var: accel_flags is %d\n", var->accel_flags);
1215
1216 dinfo = GET_DINFO(info);
1217
1218 /* update the pitch */
1219 if (intelfbhw_validate_mode(dinfo, var) != 0)
1220 return -EINVAL;
1221
1222 v = *var;
1223
1224 for (i = 0; pitches[i] != 0; i++) {
1225 if (pitches[i] >= v.xres_virtual) {
1226 v.xres_virtual = pitches[i];
1227 break;
1228 }
1229 }
1230
1231 /* Check for a supported bpp. */
1232 if (v.bits_per_pixel <= 8)
1233 v.bits_per_pixel = 8;
1234 else if (v.bits_per_pixel <= 16) {
1235 if (v.bits_per_pixel == 16)
1236 v.green.length = 6;
1237 v.bits_per_pixel = 16;
1238 } else if (v.bits_per_pixel <= 32)
1239 v.bits_per_pixel = 32;
1240 else
1241 return -EINVAL;
1242
1243 change_var = ((info->var.xres != var->xres) ||
1244 (info->var.yres != var->yres) ||
1245 (info->var.xres_virtual != var->xres_virtual) ||
1246 (info->var.yres_virtual != var->yres_virtual) ||
1247 (info->var.bits_per_pixel != var->bits_per_pixel) ||
1248 memcmp(&info->var.red, &var->red, sizeof(var->red)) ||
1249 memcmp(&info->var.green, &var->green,
1250 sizeof(var->green)) ||
1251 memcmp(&info->var.blue, &var->blue, sizeof(var->blue)));
1252
1253 if (FIXED_MODE(dinfo) &&
1254 (change_var ||
1255 var->yres_virtual > dinfo->initial_var.yres_virtual ||
1256 var->yres_virtual < dinfo->initial_var.yres ||
1257 var->xoffset || var->nonstd)) {
1258 if (first) {
1259 ERR_MSG("Changing the video mode is not supported.\n");
1260 first = 0;
1261 }
1262 return -EINVAL;
1263 }
1264
1265 switch (intelfb_var_to_depth(&v)) {
1266 case 8:
1267 v.red.offset = v.green.offset = v.blue.offset = 0;
1268 v.red.length = v.green.length = v.blue.length = 8;
1269 v.transp.offset = v.transp.length = 0;
1270 break;
1271 case 15:
1272 v.red.offset = 10;
1273 v.green.offset = 5;
1274 v.blue.offset = 0;
1275 v.red.length = v.green.length = v.blue.length = 5;
1276 v.transp.offset = v.transp.length = 0;
1277 break;
1278 case 16:
1279 v.red.offset = 11;
1280 v.green.offset = 5;
1281 v.blue.offset = 0;
1282 v.red.length = 5;
1283 v.green.length = 6;
1284 v.blue.length = 5;
1285 v.transp.offset = v.transp.length = 0;
1286 break;
1287 case 24:
1288 v.red.offset = 16;
1289 v.green.offset = 8;
1290 v.blue.offset = 0;
1291 v.red.length = v.green.length = v.blue.length = 8;
1292 v.transp.offset = v.transp.length = 0;
1293 break;
1294 case 32:
1295 v.red.offset = 16;
1296 v.green.offset = 8;
1297 v.blue.offset = 0;
1298 v.red.length = v.green.length = v.blue.length = 8;
1299 v.transp.offset = 24;
1300 v.transp.length = 8;
1301 break;
1302 }
1303
1304 if (v.xoffset > v.xres_virtual - v.xres)
1305 v.xoffset = v.xres_virtual - v.xres;
1306 if (v.yoffset > v.yres_virtual - v.yres)
1307 v.yoffset = v.yres_virtual - v.yres;
1308
1309 v.red.msb_right = v.green.msb_right = v.blue.msb_right =
1310 v.transp.msb_right = 0;
1311
1312 *var = v;
1313
1314 return 0;
1315 }
1316
1317 static int 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 /*
1335 * Disable VCO prior to timing register change.
1336 */
1337 OUTREG(DPLL_A, INREG(DPLL_A) & ~DPLL_VCO_ENABLE);
1338
1339 intelfb_blank(FB_BLANK_POWERDOWN, info);
1340
1341 if (ACCEL(dinfo, info))
1342 intelfbhw_2d_stop(dinfo);
1343
1344 memcpy(hw, &dinfo->save_state, sizeof(*hw));
1345 if (intelfbhw_mode_to_hw(dinfo, hw, &info->var))
1346 goto invalid_mode;
1347 if (intelfbhw_program_mode(dinfo, hw, 0))
1348 goto invalid_mode;
1349
1350 #if REGDUMP > 0
1351 intelfbhw_read_hw_state(dinfo, hw, 0);
1352 intelfbhw_print_hw_state(dinfo, hw);
1353 #endif
1354
1355 update_dinfo(dinfo, &info->var);
1356
1357 if (ACCEL(dinfo, info))
1358 intelfbhw_2d_start(dinfo);
1359
1360 intelfb_pan_display(&info->var, info);
1361
1362 intelfb_blank(FB_BLANK_UNBLANK, info);
1363
1364 if (ACCEL(dinfo, info)) {
1365 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN |
1366 FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_FILLRECT |
1367 FBINFO_HWACCEL_IMAGEBLIT;
1368 } else
1369 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
1370
1371 kfree(hw);
1372 return 0;
1373 invalid_mode:
1374 kfree(hw);
1375 return -EINVAL;
1376 }
1377
1378 static int intelfb_setcolreg(unsigned regno, unsigned red, unsigned green,
1379 unsigned blue, unsigned transp,
1380 struct fb_info *info)
1381 {
1382 struct intelfb_info *dinfo = GET_DINFO(info);
1383
1384 #if VERBOSE > 0
1385 DBG_MSG("intelfb_setcolreg: regno %d, depth %d\n", regno, dinfo->depth);
1386 #endif
1387
1388 if (regno > 255)
1389 return 1;
1390
1391 if (dinfo->depth == 8) {
1392 red >>= 8;
1393 green >>= 8;
1394 blue >>= 8;
1395
1396 intelfbhw_setcolreg(dinfo, regno, red, green, blue,
1397 transp);
1398 }
1399
1400 if (regno < 16) {
1401 switch (dinfo->depth) {
1402 case 15:
1403 dinfo->pseudo_palette[regno] = ((red & 0xf800) >> 1) |
1404 ((green & 0xf800) >> 6) |
1405 ((blue & 0xf800) >> 11);
1406 break;
1407 case 16:
1408 dinfo->pseudo_palette[regno] = (red & 0xf800) |
1409 ((green & 0xfc00) >> 5) |
1410 ((blue & 0xf800) >> 11);
1411 break;
1412 case 24:
1413 dinfo->pseudo_palette[regno] = ((red & 0xff00) << 8) |
1414 (green & 0xff00) |
1415 ((blue & 0xff00) >> 8);
1416 break;
1417 }
1418 }
1419
1420 return 0;
1421 }
1422
1423 static int intelfb_blank(int blank, struct fb_info *info)
1424 {
1425 intelfbhw_do_blank(blank, info);
1426 return 0;
1427 }
1428
1429 static int intelfb_pan_display(struct fb_var_screeninfo *var,
1430 struct fb_info *info)
1431 {
1432 intelfbhw_pan_display(var, info);
1433 return 0;
1434 }
1435
1436 /* When/if we have our own ioctls. */
1437 static int intelfb_ioctl(struct fb_info *info, unsigned int cmd,
1438 unsigned long arg)
1439 {
1440 int retval = 0;
1441 struct intelfb_info *dinfo = GET_DINFO(info);
1442 u32 pipe = 0;
1443
1444 switch (cmd) {
1445 case FBIO_WAITFORVSYNC:
1446 if (get_user(pipe, (__u32 __user *)arg))
1447 return -EFAULT;
1448
1449 retval = intelfbhw_wait_for_vsync(dinfo, pipe);
1450 break;
1451 default:
1452 break;
1453 }
1454
1455 return retval;
1456 }
1457
1458 static void intelfb_fillrect (struct fb_info *info,
1459 const struct fb_fillrect *rect)
1460 {
1461 struct intelfb_info *dinfo = GET_DINFO(info);
1462 u32 rop, color;
1463
1464 #if VERBOSE > 0
1465 DBG_MSG("intelfb_fillrect\n");
1466 #endif
1467
1468 if (!ACCEL(dinfo, info) || dinfo->depth == 4) {
1469 cfb_fillrect(info, rect);
1470 return;
1471 }
1472
1473 if (rect->rop == ROP_COPY)
1474 rop = PAT_ROP_GXCOPY;
1475 else /* ROP_XOR */
1476 rop = PAT_ROP_GXXOR;
1477
1478 if (dinfo->depth != 8)
1479 color = dinfo->pseudo_palette[rect->color];
1480 else
1481 color = rect->color;
1482
1483 intelfbhw_do_fillrect(dinfo, rect->dx, rect->dy,
1484 rect->width, rect->height, color,
1485 dinfo->pitch, info->var.bits_per_pixel,
1486 rop);
1487 }
1488
1489 static void intelfb_copyarea(struct fb_info *info,
1490 const struct fb_copyarea *region)
1491 {
1492 struct intelfb_info *dinfo = GET_DINFO(info);
1493
1494 #if VERBOSE > 0
1495 DBG_MSG("intelfb_copyarea\n");
1496 #endif
1497
1498 if (!ACCEL(dinfo, info) || dinfo->depth == 4) {
1499 cfb_copyarea(info, region);
1500 return;
1501 }
1502
1503 intelfbhw_do_bitblt(dinfo, region->sx, region->sy, region->dx,
1504 region->dy, region->width, region->height,
1505 dinfo->pitch, info->var.bits_per_pixel);
1506 }
1507
1508 static void intelfb_imageblit(struct fb_info *info,
1509 const struct fb_image *image)
1510 {
1511 struct intelfb_info *dinfo = GET_DINFO(info);
1512 u32 fgcolor, bgcolor;
1513
1514 #if VERBOSE > 0
1515 DBG_MSG("intelfb_imageblit\n");
1516 #endif
1517
1518 if (!ACCEL(dinfo, info) || dinfo->depth == 4
1519 || image->depth != 1) {
1520 cfb_imageblit(info, image);
1521 return;
1522 }
1523
1524 if (dinfo->depth != 8) {
1525 fgcolor = dinfo->pseudo_palette[image->fg_color];
1526 bgcolor = dinfo->pseudo_palette[image->bg_color];
1527 } else {
1528 fgcolor = image->fg_color;
1529 bgcolor = image->bg_color;
1530 }
1531
1532 if (!intelfbhw_do_drawglyph(dinfo, fgcolor, bgcolor, image->width,
1533 image->height, image->data,
1534 image->dx, image->dy,
1535 dinfo->pitch, info->var.bits_per_pixel)) {
1536 cfb_imageblit(info, image);
1537 return;
1538 }
1539 }
1540
1541 static int intelfb_cursor(struct fb_info *info, struct fb_cursor *cursor)
1542 {
1543 struct intelfb_info *dinfo = GET_DINFO(info);
1544 u32 physical;
1545 #if VERBOSE > 0
1546 DBG_MSG("intelfb_cursor\n");
1547 #endif
1548
1549 if (!dinfo->hwcursor)
1550 return -ENODEV;
1551
1552 intelfbhw_cursor_hide(dinfo);
1553
1554 /* If XFree killed the cursor - restore it */
1555 physical = (dinfo->mobile || IS_I9XX(dinfo)) ? dinfo->cursor.physical :
1556 (dinfo->cursor.offset << 12);
1557
1558 if (INREG(CURSOR_A_BASEADDR) != physical) {
1559 u32 fg, bg;
1560
1561 DBG_MSG("the cursor was killed - restore it !!\n");
1562 DBG_MSG("size %d, %d pos %d, %d\n",
1563 cursor->image.width, cursor->image.height,
1564 cursor->image.dx, cursor->image.dy);
1565
1566 intelfbhw_cursor_init(dinfo);
1567 intelfbhw_cursor_reset(dinfo);
1568 intelfbhw_cursor_setpos(dinfo, cursor->image.dx,
1569 cursor->image.dy);
1570
1571 if (dinfo->depth != 8) {
1572 fg =dinfo->pseudo_palette[cursor->image.fg_color];
1573 bg =dinfo->pseudo_palette[cursor->image.bg_color];
1574 } else {
1575 fg = cursor->image.fg_color;
1576 bg = cursor->image.bg_color;
1577 }
1578 intelfbhw_cursor_setcolor(dinfo, bg, fg);
1579 intelfbhw_cursor_load(dinfo, cursor->image.width,
1580 cursor->image.height,
1581 dinfo->cursor_src);
1582
1583 if (cursor->enable)
1584 intelfbhw_cursor_show(dinfo);
1585 return 0;
1586 }
1587
1588 if (cursor->set & FB_CUR_SETPOS) {
1589 u32 dx, dy;
1590
1591 dx = cursor->image.dx - info->var.xoffset;
1592 dy = cursor->image.dy - info->var.yoffset;
1593
1594 intelfbhw_cursor_setpos(dinfo, dx, dy);
1595 }
1596
1597 if (cursor->set & FB_CUR_SETSIZE) {
1598 if (cursor->image.width > 64 || cursor->image.height > 64)
1599 return -ENXIO;
1600
1601 intelfbhw_cursor_reset(dinfo);
1602 }
1603
1604 if (cursor->set & FB_CUR_SETCMAP) {
1605 u32 fg, bg;
1606
1607 if (dinfo->depth != 8) {
1608 fg = dinfo->pseudo_palette[cursor->image.fg_color];
1609 bg = dinfo->pseudo_palette[cursor->image.bg_color];
1610 } else {
1611 fg = cursor->image.fg_color;
1612 bg = cursor->image.bg_color;
1613 }
1614
1615 intelfbhw_cursor_setcolor(dinfo, bg, fg);
1616 }
1617
1618 if (cursor->set & (FB_CUR_SETSHAPE | FB_CUR_SETIMAGE)) {
1619 u32 s_pitch = (ROUND_UP_TO(cursor->image.width, 8) / 8);
1620 u32 size = s_pitch * cursor->image.height;
1621 u8 *dat = (u8 *) cursor->image.data;
1622 u8 *msk = (u8 *) cursor->mask;
1623 u8 src[64];
1624 u32 i;
1625
1626 if (cursor->image.depth != 1)
1627 return -ENXIO;
1628
1629 switch (cursor->rop) {
1630 case ROP_XOR:
1631 for (i = 0; i < size; i++)
1632 src[i] = dat[i] ^ msk[i];
1633 break;
1634 case ROP_COPY:
1635 default:
1636 for (i = 0; i < size; i++)
1637 src[i] = dat[i] & msk[i];
1638 break;
1639 }
1640
1641 /* save the bitmap to restore it when XFree will
1642 make the cursor dirty */
1643 memcpy(dinfo->cursor_src, src, size);
1644
1645 intelfbhw_cursor_load(dinfo, cursor->image.width,
1646 cursor->image.height, src);
1647 }
1648
1649 if (cursor->enable)
1650 intelfbhw_cursor_show(dinfo);
1651
1652 return 0;
1653 }
1654
1655 static int intelfb_sync(struct fb_info *info)
1656 {
1657 struct intelfb_info *dinfo = GET_DINFO(info);
1658
1659 #if VERBOSE > 0
1660 DBG_MSG("intelfb_sync\n");
1661 #endif
1662
1663 if (dinfo->ring_lockup)
1664 return 0;
1665
1666 intelfbhw_do_sync(dinfo);
1667 return 0;
1668 }
1669
Linux with added FPC-III support