Pull cpuidle into release branch
[linux-2.6] / drivers / video / kyro / fbdev.c
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");