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Avoid beyond bounds copy while caching ACL
[zen-stable.git] / drivers / video / kyro / fbdev.c
blobacb9370fdb147277e733df39934706eabb8a0645
1 /*
2 * linux/drivers/video/kyro/fbdev.c
3 *
4 * Copyright (C) 2002 STMicroelectronics
5 * Copyright (C) 2003, 2004 Paul Mundt
6 *
7 * This file is subject to the terms and conditions of the GNU General Public
8 * License. See the file COPYING in the main directory of this archive
9 * for more details.
10 */
11
12 #include <linux/module.h>
13 #include <linux/types.h>
14 #include <linux/kernel.h>
15 #include <linux/mm.h>
16 #include <linux/errno.h>
17 #include <linux/string.h>
18 #include <linux/delay.h>
19 #include <linux/fb.h>
20 #include <linux/ioctl.h>
21 #include <linux/init.h>
22 #include <linux/pci.h>
23 #include <asm/io.h>
24 #include <linux/uaccess.h>
25 #ifdef CONFIG_MTRR
26 #include <asm/mtrr.h>
27 #endif
28
29 #include <video/kyro.h>
30
31 #include "STG4000Reg.h"
32 #include "STG4000Interface.h"
33
34 /*
35 * PCI Definitions
36 */
37 #define PCI_VENDOR_ID_ST 0x104a
38 #define PCI_DEVICE_ID_STG4000 0x0010
39
40 #define KHZ2PICOS(a) (1000000000UL/(a))
41
42 /****************************************************************************/
43 static struct fb_fix_screeninfo kyro_fix __devinitdata = {
44 .id = "ST Kyro",
45 .type = FB_TYPE_PACKED_PIXELS,
46 .visual = FB_VISUAL_TRUECOLOR,
47 .accel = FB_ACCEL_NONE,
48 };
49
50 static struct fb_var_screeninfo kyro_var __devinitdata = {
51 /* 640x480, 16bpp @ 60 Hz */
52 .xres = 640,
53 .yres = 480,
54 .xres_virtual = 640,
55 .yres_virtual = 480,
56 .bits_per_pixel = 16,
57 .red = { 11, 5, 0 },
58 .green = { 5, 6, 0 },
59 .blue = { 0, 5, 0 },
60 .activate = FB_ACTIVATE_NOW,
61 .height = -1,
62 .width = -1,
63 .pixclock = KHZ2PICOS(25175),
64 .left_margin = 48,
65 .right_margin = 16,
66 .upper_margin = 33,
67 .lower_margin = 10,
68 .hsync_len = 96,
69 .vsync_len = 2,
70 .vmode = FB_VMODE_NONINTERLACED,
71 };
72
73 typedef struct {
74 STG4000REG __iomem *pSTGReg; /* Virtual address of PCI register region */
75 u32 ulNextFreeVidMem; /* Offset from start of vid mem to next free region */
76 u32 ulOverlayOffset; /* Offset from start of vid mem to overlay */
77 u32 ulOverlayStride; /* Interleaved YUV and 422 mode Y stride */
78 u32 ulOverlayUVStride; /* 422 mode U & V stride */
79 } device_info_t;
80
81 /* global graphics card info structure (one per card) */
82 static device_info_t deviceInfo;
83
84 static char *mode_option __devinitdata = NULL;
85 static int nopan __devinitdata = 0;
86 static int nowrap __devinitdata = 1;
87 #ifdef CONFIG_MTRR
88 static int nomtrr __devinitdata = 0;
89 #endif
90
91 /* PCI driver prototypes */
92 static int kyrofb_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
93 static void kyrofb_remove(struct pci_dev *pdev);
94
95 static struct fb_videomode kyro_modedb[] __devinitdata = {
96 {
97 /* 640x350 @ 85Hz */
98 NULL, 85, 640, 350, KHZ2PICOS(31500),
99 96, 32, 60, 32, 64, 3,
100 FB_SYNC_HOR_HIGH_ACT, FB_VMODE_NONINTERLACED
101 }, {
102 /* 640x400 @ 85Hz */
103 NULL, 85, 640, 400, KHZ2PICOS(31500),
104 96, 32, 41, 1, 64, 3,
105 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
106 }, {
107 /* 720x400 @ 85Hz */
108 NULL, 85, 720, 400, KHZ2PICOS(35500),
109 108, 36, 42, 1, 72, 3,
110 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
111 }, {
112 /* 640x480 @ 60Hz */
113 NULL, 60, 640, 480, KHZ2PICOS(25175),
114 48, 16, 33, 10, 96, 2,
115 0, FB_VMODE_NONINTERLACED
116 }, {
117 /* 640x480 @ 72Hz */
118 NULL, 72, 640, 480, KHZ2PICOS(31500),
119 128, 24, 28, 9, 40, 3,
120 0, FB_VMODE_NONINTERLACED
121 }, {
122 /* 640x480 @ 75Hz */
123 NULL, 75, 640, 480, KHZ2PICOS(31500),
124 120, 16, 16, 1, 64, 3,
125 0, FB_VMODE_NONINTERLACED
126 }, {
127 /* 640x480 @ 85Hz */
128 NULL, 85, 640, 480, KHZ2PICOS(36000),
129 80, 56, 25, 1, 56, 3,
130 0, FB_VMODE_NONINTERLACED
131 }, {
132 /* 800x600 @ 56Hz */
133 NULL, 56, 800, 600, KHZ2PICOS(36000),
134 128, 24, 22, 1, 72, 2,
135 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
136 }, {
137 /* 800x600 @ 60Hz */
138 NULL, 60, 800, 600, KHZ2PICOS(40000),
139 88, 40, 23, 1, 128, 4,
140 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
141 }, {
142 /* 800x600 @ 72Hz */
143 NULL, 72, 800, 600, KHZ2PICOS(50000),
144 64, 56, 23, 37, 120, 6,
145 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
146 }, {
147 /* 800x600 @ 75Hz */
148 NULL, 75, 800, 600, KHZ2PICOS(49500),
149 160, 16, 21, 1, 80, 3,
150 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
151 }, {
152 /* 800x600 @ 85Hz */
153 NULL, 85, 800, 600, KHZ2PICOS(56250),
154 152, 32, 27, 1, 64, 3,
155 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
156 }, {
157 /* 1024x768 @ 60Hz */
158 NULL, 60, 1024, 768, KHZ2PICOS(65000),
159 160, 24, 29, 3, 136, 6,
160 0, FB_VMODE_NONINTERLACED
161 }, {
162 /* 1024x768 @ 70Hz */
163 NULL, 70, 1024, 768, KHZ2PICOS(75000),
164 144, 24, 29, 3, 136, 6,
165 0, FB_VMODE_NONINTERLACED
166 }, {
167 /* 1024x768 @ 75Hz */
168 NULL, 75, 1024, 768, KHZ2PICOS(78750),
169 176, 16, 28, 1, 96, 3,
170 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
171 }, {
172 /* 1024x768 @ 85Hz */
173 NULL, 85, 1024, 768, KHZ2PICOS(94500),
174 208, 48, 36, 1, 96, 3,
175 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
176 }, {
177 /* 1152x864 @ 75Hz */
178 NULL, 75, 1152, 864, KHZ2PICOS(108000),
179 256, 64, 32, 1, 128, 3,
180 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
181 }, {
182 /* 1280x960 @ 60Hz */
183 NULL, 60, 1280, 960, KHZ2PICOS(108000),
184 312, 96, 36, 1, 112, 3,
185 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
186 }, {
187 /* 1280x960 @ 85Hz */
188 NULL, 85, 1280, 960, KHZ2PICOS(148500),
189 224, 64, 47, 1, 160, 3,
190 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
191 }, {
192 /* 1280x1024 @ 60Hz */
193 NULL, 60, 1280, 1024, KHZ2PICOS(108000),
194 248, 48, 38, 1, 112, 3,
195 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
196 }, {
197 /* 1280x1024 @ 75Hz */
198 NULL, 75, 1280, 1024, KHZ2PICOS(135000),
199 248, 16, 38, 1, 144, 3,
200 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
201 }, {
202 /* 1280x1024 @ 85Hz */
203 NULL, 85, 1280, 1024, KHZ2PICOS(157500),
204 224, 64, 44, 1, 160, 3,
205 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
206 }, {
207 /* 1600x1200 @ 60Hz */
208 NULL, 60, 1600, 1200, KHZ2PICOS(162000),
209 304, 64, 46, 1, 192, 3,
210 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
211 }, {
212 /* 1600x1200 @ 65Hz */
213 NULL, 65, 1600, 1200, KHZ2PICOS(175500),
214 304, 64, 46, 1, 192, 3,
215 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
216 }, {
217 /* 1600x1200 @ 70Hz */
218 NULL, 70, 1600, 1200, KHZ2PICOS(189000),
219 304, 64, 46, 1, 192, 3,
220 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
221 }, {
222 /* 1600x1200 @ 75Hz */
223 NULL, 75, 1600, 1200, KHZ2PICOS(202500),
224 304, 64, 46, 1, 192, 3,
225 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
226 }, {
227 /* 1600x1200 @ 85Hz */
228 NULL, 85, 1600, 1200, KHZ2PICOS(229500),
229 304, 64, 46, 1, 192, 3,
230 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
231 }, {
232 /* 1792x1344 @ 60Hz */
233 NULL, 60, 1792, 1344, KHZ2PICOS(204750),
234 328, 128, 46, 1, 200, 3,
235 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
236 }, {
237 /* 1792x1344 @ 75Hz */
238 NULL, 75, 1792, 1344, KHZ2PICOS(261000),
239 352, 96, 69, 1, 216, 3,
240 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
241 }, {
242 /* 1856x1392 @ 60Hz */
243 NULL, 60, 1856, 1392, KHZ2PICOS(218250),
244 352, 96, 43, 1, 224, 3,
245 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
246 }, {
247 /* 1856x1392 @ 75Hz */
248 NULL, 75, 1856, 1392, KHZ2PICOS(288000),
249 352, 128, 104, 1, 224, 3,
250 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
251 }, {
252 /* 1920x1440 @ 60Hz */
253 NULL, 60, 1920, 1440, KHZ2PICOS(234000),
254 344, 128, 56, 1, 208, 3,
255 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
256 }, {
257 /* 1920x1440 @ 75Hz */
258 NULL, 75, 1920, 1440, KHZ2PICOS(297000),
259 352, 144, 56, 1, 224, 3,
260 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
261 },
262 };
263 #define NUM_TOTAL_MODES ARRAY_SIZE(kyro_modedb)
264
265 /*
266 * This needs to be kept ordered corresponding to kyro_modedb.
267 */
268 enum {
269 VMODE_640_350_85,
270 VMODE_640_400_85,
271 VMODE_720_400_85,
272 VMODE_640_480_60,
273 VMODE_640_480_72,
274 VMODE_640_480_75,
275 VMODE_640_480_85,
276 VMODE_800_600_56,
277 VMODE_800_600_60,
278 VMODE_800_600_72,
279 VMODE_800_600_75,
280 VMODE_800_600_85,
281 VMODE_1024_768_60,
282 VMODE_1024_768_70,
283 VMODE_1024_768_75,
284 VMODE_1024_768_85,
285 VMODE_1152_864_75,
286 VMODE_1280_960_60,
287 VMODE_1280_960_85,
288 VMODE_1280_1024_60,
289 VMODE_1280_1024_75,
290 VMODE_1280_1024_85,
291 VMODE_1600_1200_60,
292 VMODE_1600_1200_65,
293 VMODE_1600_1200_70,
294 VMODE_1600_1200_75,
295 VMODE_1600_1200_85,
296 VMODE_1792_1344_60,
297 VMODE_1792_1344_75,
298 VMODE_1856_1392_60,
299 VMODE_1856_1392_75,
300 VMODE_1920_1440_60,
301 VMODE_1920_1440_75,
302 };
303
304 /* Accessors */
305 static int kyro_dev_video_mode_set(struct fb_info *info)
306 {
307 struct kyrofb_info *par = info->par;
308
309 /* Turn off display */
310 StopVTG(deviceInfo.pSTGReg);
311 DisableRamdacOutput(deviceInfo.pSTGReg);
312
313 /* Bring us out of VGA and into Hi-Res mode, if not already. */
314 DisableVGA(deviceInfo.pSTGReg);
315
316 if (InitialiseRamdac(deviceInfo.pSTGReg,
317 info->var.bits_per_pixel,
318 info->var.xres, info->var.yres,
319 par->HSP, par->VSP, &par->PIXCLK) < 0)
320 return -EINVAL;
321
322 SetupVTG(deviceInfo.pSTGReg, par);
323
324 ResetOverlayRegisters(deviceInfo.pSTGReg);
325
326 /* Turn on display in new mode */
327 EnableRamdacOutput(deviceInfo.pSTGReg);
328 StartVTG(deviceInfo.pSTGReg);
329
330 deviceInfo.ulNextFreeVidMem = info->var.xres * info->var.yres *
331 info->var.bits_per_pixel;
332 deviceInfo.ulOverlayOffset = 0;
333
334 return 0;
335 }
336
337 static int kyro_dev_overlay_create(u32 ulWidth,
338 u32 ulHeight, int bLinear)
339 {
340 u32 offset;
341 u32 stride, uvStride;
342
343 if (deviceInfo.ulOverlayOffset != 0)
344 /*
345 * Can only create one overlay without resetting the card or
346 * changing display mode
347 */
348 return -EINVAL;
349
350 ResetOverlayRegisters(deviceInfo.pSTGReg);
351
352 /* Overlays are addressed in multiples of 16bytes or 32bytes, so make
353 * sure the start offset is on an appropriate boundary.
354 */
355 offset = deviceInfo.ulNextFreeVidMem;
356 if ((offset & 0x1f) != 0) {
357 offset = (offset + 32L) & 0xffffffE0L;
358 }
359
360 if (CreateOverlaySurface(deviceInfo.pSTGReg, ulWidth, ulHeight,
361 bLinear, offset, &stride, &uvStride) < 0)
362 return -EINVAL;
363
364 deviceInfo.ulOverlayOffset = offset;
365 deviceInfo.ulOverlayStride = stride;
366 deviceInfo.ulOverlayUVStride = uvStride;
367 deviceInfo.ulNextFreeVidMem = offset + (ulHeight * stride) + (ulHeight * 2 * uvStride);
368
369 SetOverlayBlendMode(deviceInfo.pSTGReg, GLOBAL_ALPHA, 0xf, 0x0);
370
371 return 0;
372 }
373
374 static int kyro_dev_overlay_viewport_set(u32 x, u32 y, u32 ulWidth, u32 ulHeight)
375 {
376 if (deviceInfo.ulOverlayOffset == 0)
377 /* probably haven't called CreateOverlay yet */
378 return -EINVAL;
379
380 /* Stop Ramdac Output */
381 DisableRamdacOutput(deviceInfo.pSTGReg);
382
383 SetOverlayViewPort(deviceInfo.pSTGReg,
384 x, y, x + ulWidth - 1, y + ulHeight - 1);
385
386 EnableOverlayPlane(deviceInfo.pSTGReg);
387 /* Start Ramdac Output */
388 EnableRamdacOutput(deviceInfo.pSTGReg);
389
390 return 0;
391 }
392
393 static inline unsigned long get_line_length(int x, int bpp)
394 {
395 return (unsigned long)((((x*bpp)+31)&~31) >> 3);
396 }
397
398 static int kyrofb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
399 {
400 struct kyrofb_info *par = info->par;
401
402 if (var->bits_per_pixel != 16 && var->bits_per_pixel != 32) {
403 printk(KERN_WARNING "kyrofb: depth not supported: %u\n", var->bits_per_pixel);
404 return -EINVAL;
405 }
406
407 switch (var->bits_per_pixel) {
408 case 16:
409 var->red.offset = 11;
410 var->red.length = 5;
411 var->green.offset = 5;
412 var->green.length = 6;
413 var->blue.length = 5;
414 break;
415 case 32:
416 var->transp.offset = 24;
417 var->red.offset = 16;
418 var->green.offset = 8;
419 var->blue.offset = 0;
420
421 var->red.length = 8;
422 var->green.length = 8;
423 var->blue.length = 8;
424 var->transp.length = 8;
425 break;
426 }
427
428 /* Height/Width of picture in mm */
429 var->height = var->width = -1;
430
431 /* Timing information. All values are in picoseconds */
432
433 /* par->PIXCLK is in 100Hz units. Convert to picoseconds -
434 * ensuring we do not exceed 32 bit precision
435 */
436 /*
437 * XXX: Enabling this really screws over the pixclock value when we
438 * read it back with fbset. As such, leaving this commented out appears
439 * to do the right thing (at least for now) .. bearing in mind that we
440 * have infact already done the KHZ2PICOS conversion in both the modedb
441 * and kyro_var. -- PFM.
442 */
443 // var->pixclock = 1000000000 / (par->PIXCLK / 10);
444
445 /* the header file claims we should use picoseconds
446 * - nobody else does though, the all use pixels and lines
447 * of h and v sizes. Both options here.
448 */
449
450 /*
451 * If we're being called by __fb_try_mode(), then we don't want to
452 * override any of the var settings that we've already parsed
453 * from our modedb. -- PFM.
454 */
455 if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_TEST)
456 return 0;
457
458 var->left_margin = par->HBP;
459 var->hsync_len = par->HST;
460 var->right_margin = par->HFP;
461
462 var->upper_margin = par->VBP;
463 var->vsync_len = par->VST;
464 var->lower_margin = par->VFP;
465
466 if (par->HSP == 1)
467 var->sync |= FB_SYNC_HOR_HIGH_ACT;
468 if (par->VSP == 1)
469 var->sync |= FB_SYNC_VERT_HIGH_ACT;
470
471 return 0;
472 }
473
474 static int kyrofb_set_par(struct fb_info *info)
475 {
476 struct kyrofb_info *par = info->par;
477 unsigned long lineclock;
478 unsigned long frameclock;
479
480 /* Actual resolution */
481 par->XRES = info->var.xres;
482 par->YRES = info->var.yres;
483
484 /* pixel depth */
485 par->PIXDEPTH = info->var.bits_per_pixel;
486
487 /* Refresh rate */
488 /* time for a line in ns */
489 lineclock = (info->var.pixclock * (info->var.xres +
490 info->var.right_margin +
491 info->var.hsync_len +
492 info->var.left_margin)) / 1000;
493
494
495 /* time for a frame in ns (precision in 32bpp) */
496 frameclock = lineclock * (info->var.yres +
497 info->var.lower_margin +
498 info->var.vsync_len +
499 info->var.upper_margin);
500
501 /* Calculate refresh rate and horrizontal clocks */
502 par->VFREQ = (1000000000 + (frameclock / 2)) / frameclock;
503 par->HCLK = (1000000000 + (lineclock / 2)) / lineclock;
504 par->PIXCLK = ((1000000000 + (info->var.pixclock / 2))
505 / info->var.pixclock) * 10;
506
507 /* calculate horizontal timings */
508 par->HFP = info->var.right_margin;
509 par->HST = info->var.hsync_len;
510 par->HBP = info->var.left_margin;
511 par->HTot = par->XRES + par->HBP + par->HST + par->HFP;
512
513 /* calculate vertical timings */
514 par->VFP = info->var.lower_margin;
515 par->VST = info->var.vsync_len;
516 par->VBP = info->var.upper_margin;
517 par->VTot = par->YRES + par->VBP + par->VST + par->VFP;
518
519 par->HSP = (info->var.sync & FB_SYNC_HOR_HIGH_ACT) ? 1 : 0;
520 par->VSP = (info->var.sync & FB_SYNC_VERT_HIGH_ACT) ? 1 : 0;
521
522 kyro_dev_video_mode_set(info);
523
524 /* length of a line in bytes */
525 info->fix.line_length = get_line_length(par->XRES, par->PIXDEPTH);
526 info->fix.visual = FB_VISUAL_TRUECOLOR;
527
528 return 0;
529 }
530
531 static int kyrofb_setcolreg(u_int regno, u_int red, u_int green,
532 u_int blue, u_int transp, struct fb_info *info)
533 {
534 struct kyrofb_info *par = info->par;
535
536 if (regno > 255)
537 return 1; /* Invalid register */
538
539 if (regno < 16) {
540 switch (info->var.bits_per_pixel) {
541 case 16:
542 par->palette[regno] =
543 (red & 0xf800) |
544 ((green & 0xfc00) >> 5) |
545 ((blue & 0xf800) >> 11);
546 break;
547 case 32:
548 red >>= 8; green >>= 8; blue >>= 8; transp >>= 8;
549 par->palette[regno] =
550 (transp << 24) | (red << 16) | (green << 8) | blue;
551 break;
552 }
553 }
554
555 return 0;
556 }
557
558 #ifndef MODULE
559 static int __init kyrofb_setup(char *options)
560 {
561 char *this_opt;
562
563 if (!options || !*options)
564 return 0;
565
566 while ((this_opt = strsep(&options, ","))) {
567 if (!*this_opt)
568 continue;
569 if (strcmp(this_opt, "nopan") == 0) {
570 nopan = 1;
571 } else if (strcmp(this_opt, "nowrap") == 0) {
572 nowrap = 1;
573 #ifdef CONFIG_MTRR
574 } else if (strcmp(this_opt, "nomtrr") == 0) {
575 nomtrr = 1;
576 #endif
577 } else {
578 mode_option = this_opt;
579 }
580 }
581
582 return 0;
583 }
584 #endif
585
586 static int kyrofb_ioctl(struct fb_info *info,
587 unsigned int cmd, unsigned long arg)
588 {
589 overlay_create ol_create;
590 overlay_viewport_set ol_viewport_set;
591 void __user *argp = (void __user *)arg;
592
593 switch (cmd) {
594 case KYRO_IOCTL_OVERLAY_CREATE:
595 if (copy_from_user(&ol_create, argp, sizeof(overlay_create)))
596 return -EFAULT;
597
598 if (kyro_dev_overlay_create(ol_create.ulWidth,
599 ol_create.ulHeight, 0) < 0) {
600 printk(KERN_ERR "Kyro FB: failed to create overlay surface.\n");
601
602 return -EINVAL;
603 }
604 break;
605 case KYRO_IOCTL_OVERLAY_VIEWPORT_SET:
606 if (copy_from_user(&ol_viewport_set, argp,
607 sizeof(overlay_viewport_set)))
608 return -EFAULT;
609
610 if (kyro_dev_overlay_viewport_set(ol_viewport_set.xOrgin,
611 ol_viewport_set.yOrgin,
612 ol_viewport_set.xSize,
613 ol_viewport_set.ySize) != 0)
614 {
615 printk(KERN_ERR "Kyro FB: failed to create overlay viewport.\n");
616 return -EINVAL;
617 }
618 break;
619 case KYRO_IOCTL_SET_VIDEO_MODE:
620 {
621 printk(KERN_ERR "Kyro FB: KYRO_IOCTL_SET_VIDEO_MODE is"
622 "obsolete, use the appropriate fb_ioctl()"
623 "command instead.\n");
624 return -EINVAL;
625 }
626 break;
627 case KYRO_IOCTL_UVSTRIDE:
628 if (copy_to_user(argp, &deviceInfo.ulOverlayUVStride, sizeof(unsigned long)))
629 return -EFAULT;
630 break;
631 case KYRO_IOCTL_STRIDE:
632 if (copy_to_user(argp, &deviceInfo.ulOverlayStride, sizeof(unsigned long)))
633 return -EFAULT;
634 break;
635 case KYRO_IOCTL_OVERLAY_OFFSET:
636 if (copy_to_user(argp, &deviceInfo.ulOverlayOffset, sizeof(unsigned long)))
637 return -EFAULT;
638 break;
639 }
640
641 return 0;
642 }
643
644 static struct pci_device_id kyrofb_pci_tbl[] = {
645 { PCI_VENDOR_ID_ST, PCI_DEVICE_ID_STG4000,
646 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
647 { 0, }
648 };
649
650 MODULE_DEVICE_TABLE(pci, kyrofb_pci_tbl);
651
652 static struct pci_driver kyrofb_pci_driver = {
653 .name = "kyrofb",
654 .id_table = kyrofb_pci_tbl,
655 .probe = kyrofb_probe,
656 .remove = __devexit_p(kyrofb_remove),
657 };
658
659 static struct fb_ops kyrofb_ops = {
660 .owner = THIS_MODULE,
661 .fb_check_var = kyrofb_check_var,
662 .fb_set_par = kyrofb_set_par,
663 .fb_setcolreg = kyrofb_setcolreg,
664 .fb_ioctl = kyrofb_ioctl,
665 .fb_fillrect = cfb_fillrect,
666 .fb_copyarea = cfb_copyarea,
667 .fb_imageblit = cfb_imageblit,
668 };
669
670 static int __devinit kyrofb_probe(struct pci_dev *pdev,
671 const struct pci_device_id *ent)
672 {
673 struct fb_info *info;
674 struct kyrofb_info *currentpar;
675 unsigned long size;
676 int err;
677
678 if ((err = pci_enable_device(pdev))) {
679 printk(KERN_WARNING "kyrofb: Can't enable pdev: %d\n", err);
680 return err;
681 }
682
683 info = framebuffer_alloc(sizeof(struct kyrofb_info), &pdev->dev);
684 if (!info)
685 return -ENOMEM;
686
687 currentpar = info->par;
688
689 kyro_fix.smem_start = pci_resource_start(pdev, 0);
690 kyro_fix.smem_len = pci_resource_len(pdev, 0);
691 kyro_fix.mmio_start = pci_resource_start(pdev, 1);
692 kyro_fix.mmio_len = pci_resource_len(pdev, 1);
693
694 currentpar->regbase = deviceInfo.pSTGReg =
695 ioremap_nocache(kyro_fix.mmio_start, kyro_fix.mmio_len);
696
697 info->screen_base = ioremap_nocache(kyro_fix.smem_start,
698 kyro_fix.smem_len);
699
700 #ifdef CONFIG_MTRR
701 if (!nomtrr)
702 currentpar->mtrr_handle =
703 mtrr_add(kyro_fix.smem_start,
704 kyro_fix.smem_len,
705 MTRR_TYPE_WRCOMB, 1);
706 #endif
707
708 kyro_fix.ypanstep = nopan ? 0 : 1;
709 kyro_fix.ywrapstep = nowrap ? 0 : 1;
710
711 info->fbops = &kyrofb_ops;
712 info->fix = kyro_fix;
713 info->pseudo_palette = currentpar->palette;
714 info->flags = FBINFO_DEFAULT;
715
716 SetCoreClockPLL(deviceInfo.pSTGReg, pdev);
717
718 deviceInfo.ulNextFreeVidMem = 0;
719 deviceInfo.ulOverlayOffset = 0;
720
721 /* This should give a reasonable default video mode */
722 if (!fb_find_mode(&info->var, info, mode_option, kyro_modedb,
723 NUM_TOTAL_MODES, &kyro_modedb[VMODE_1024_768_75], 32))
724 info->var = kyro_var;
725
726 fb_alloc_cmap(&info->cmap, 256, 0);
727
728 kyrofb_set_par(info);
729 kyrofb_check_var(&info->var, info);
730
731 size = get_line_length(info->var.xres_virtual,
732 info->var.bits_per_pixel);
733 size *= info->var.yres_virtual;
734
735 fb_memset(info->screen_base, 0, size);
736
737 if (register_framebuffer(info) < 0)
738 goto out_unmap;
739
740 printk("fb%d: %s frame buffer device, at %dx%d@%d using %ldk/%ldk of VRAM\n",
741 info->node, info->fix.id, info->var.xres,
742 info->var.yres, info->var.bits_per_pixel, size >> 10,
743 (unsigned long)info->fix.smem_len >> 10);
744
745 pci_set_drvdata(pdev, info);
746
747 return 0;
748
749 out_unmap:
750 iounmap(currentpar->regbase);
751 iounmap(info->screen_base);
752 framebuffer_release(info);
753
754 return -EINVAL;
755 }
756
757 static void __devexit kyrofb_remove(struct pci_dev *pdev)
758 {
759 struct fb_info *info = pci_get_drvdata(pdev);
760 struct kyrofb_info *par = info->par;
761
762 /* Reset the board */
763 StopVTG(deviceInfo.pSTGReg);
764 DisableRamdacOutput(deviceInfo.pSTGReg);
765
766 /* Sync up the PLL */
767 SetCoreClockPLL(deviceInfo.pSTGReg, pdev);
768
769 deviceInfo.ulNextFreeVidMem = 0;
770 deviceInfo.ulOverlayOffset = 0;
771
772 iounmap(info->screen_base);
773 iounmap(par->regbase);
774
775 #ifdef CONFIG_MTRR
776 if (par->mtrr_handle)
777 mtrr_del(par->mtrr_handle,
778 info->fix.smem_start,
779 info->fix.smem_len);
780 #endif
781
782 unregister_framebuffer(info);
783 pci_set_drvdata(pdev, NULL);
784 framebuffer_release(info);
785 }
786
787 static int __init kyrofb_init(void)
788 {
789 #ifndef MODULE
790 char *option = NULL;
791
792 if (fb_get_options("kyrofb", &option))
793 return -ENODEV;
794 kyrofb_setup(option);
795 #endif
796 return pci_register_driver(&kyrofb_pci_driver);
797 }
798
799 static void __exit kyrofb_exit(void)
800 {
801 pci_unregister_driver(&kyrofb_pci_driver);
802 }
803
804 module_init(kyrofb_init);
805
806 #ifdef MODULE
807 module_exit(kyrofb_exit);
808 #endif
809
810 MODULE_AUTHOR("STMicroelectronics; Paul Mundt <lethal@linux-sh.org>");
811 MODULE_LICENSE("GPL");