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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/aperture.h>
13#include <linux/module.h>
14#include <linux/types.h>
15#include <linux/kernel.h>
16#include <linux/mm.h>
17#include <linux/errno.h>
18#include <linux/string.h>
19#include <linux/delay.h>
20#include <linux/fb.h>
21#include <linux/ioctl.h>
22#include <linux/init.h>
23#include <linux/pci.h>
24#include <asm/io.h>
25#include <linux/uaccess.h>
26
27#include <video/kyro.h>
28
29#include "STG4000Reg.h"
30#include "STG4000Interface.h"
31
32/*
33 * PCI Definitions
34 */
35#define PCI_VENDOR_ID_ST 0x104a
36#define PCI_DEVICE_ID_STG4000 0x0010
37
38#define KHZ2PICOS(a) (1000000000UL/(a))
39
40/****************************************************************************/
41static struct fb_fix_screeninfo kyro_fix = {
42 .id = "ST Kyro",
43 .type = FB_TYPE_PACKED_PIXELS,
44 .visual = FB_VISUAL_TRUECOLOR,
45 .accel = FB_ACCEL_NONE,
46};
47
48static const struct fb_var_screeninfo kyro_var = {
49 /* 640x480, 16bpp @ 60 Hz */
50 .xres = 640,
51 .yres = 480,
52 .xres_virtual = 640,
53 .yres_virtual = 480,
54 .bits_per_pixel = 16,
55 .red = { 11, 5, 0 },
56 .green = { 5, 6, 0 },
57 .blue = { 0, 5, 0 },
58 .activate = FB_ACTIVATE_NOW,
59 .height = -1,
60 .width = -1,
61 .pixclock = KHZ2PICOS(25175),
62 .left_margin = 48,
63 .right_margin = 16,
64 .upper_margin = 33,
65 .lower_margin = 10,
66 .hsync_len = 96,
67 .vsync_len = 2,
68 .vmode = FB_VMODE_NONINTERLACED,
69};
70
71typedef struct {
72 STG4000REG __iomem *pSTGReg; /* Virtual address of PCI register region */
73 u32 ulNextFreeVidMem; /* Offset from start of vid mem to next free region */
74 u32 ulOverlayOffset; /* Offset from start of vid mem to overlay */
75 u32 ulOverlayStride; /* Interleaved YUV and 422 mode Y stride */
76 u32 ulOverlayUVStride; /* 422 mode U & V stride */
77} device_info_t;
78
79/* global graphics card info structure (one per card) */
80static device_info_t deviceInfo;
81
82static char *mode_option = NULL;
83static int nopan = 0;
84static int nowrap = 1;
85static int nomtrr = 0;
86
87/* PCI driver prototypes */
88static int kyrofb_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
89static void kyrofb_remove(struct pci_dev *pdev);
90
91static struct fb_videomode kyro_modedb[] = {
92 {
93 /* 640x350 @ 85Hz */
94 NULL, 85, 640, 350, KHZ2PICOS(31500),
95 96, 32, 60, 32, 64, 3,
96 FB_SYNC_HOR_HIGH_ACT, FB_VMODE_NONINTERLACED
97 }, {
98 /* 640x400 @ 85Hz */
99 NULL, 85, 640, 400, KHZ2PICOS(31500),
100 96, 32, 41, 1, 64, 3,
101 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
102 }, {
103 /* 720x400 @ 85Hz */
104 NULL, 85, 720, 400, KHZ2PICOS(35500),
105 108, 36, 42, 1, 72, 3,
106 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
107 }, {
108 /* 640x480 @ 60Hz */
109 NULL, 60, 640, 480, KHZ2PICOS(25175),
110 48, 16, 33, 10, 96, 2,
111 0, FB_VMODE_NONINTERLACED
112 }, {
113 /* 640x480 @ 72Hz */
114 NULL, 72, 640, 480, KHZ2PICOS(31500),
115 128, 24, 28, 9, 40, 3,
116 0, FB_VMODE_NONINTERLACED
117 }, {
118 /* 640x480 @ 75Hz */
119 NULL, 75, 640, 480, KHZ2PICOS(31500),
120 120, 16, 16, 1, 64, 3,
121 0, FB_VMODE_NONINTERLACED
122 }, {
123 /* 640x480 @ 85Hz */
124 NULL, 85, 640, 480, KHZ2PICOS(36000),
125 80, 56, 25, 1, 56, 3,
126 0, FB_VMODE_NONINTERLACED
127 }, {
128 /* 800x600 @ 56Hz */
129 NULL, 56, 800, 600, KHZ2PICOS(36000),
130 128, 24, 22, 1, 72, 2,
131 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
132 }, {
133 /* 800x600 @ 60Hz */
134 NULL, 60, 800, 600, KHZ2PICOS(40000),
135 88, 40, 23, 1, 128, 4,
136 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
137 }, {
138 /* 800x600 @ 72Hz */
139 NULL, 72, 800, 600, KHZ2PICOS(50000),
140 64, 56, 23, 37, 120, 6,
141 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
142 }, {
143 /* 800x600 @ 75Hz */
144 NULL, 75, 800, 600, KHZ2PICOS(49500),
145 160, 16, 21, 1, 80, 3,
146 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
147 }, {
148 /* 800x600 @ 85Hz */
149 NULL, 85, 800, 600, KHZ2PICOS(56250),
150 152, 32, 27, 1, 64, 3,
151 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
152 }, {
153 /* 1024x768 @ 60Hz */
154 NULL, 60, 1024, 768, KHZ2PICOS(65000),
155 160, 24, 29, 3, 136, 6,
156 0, FB_VMODE_NONINTERLACED
157 }, {
158 /* 1024x768 @ 70Hz */
159 NULL, 70, 1024, 768, KHZ2PICOS(75000),
160 144, 24, 29, 3, 136, 6,
161 0, FB_VMODE_NONINTERLACED
162 }, {
163 /* 1024x768 @ 75Hz */
164 NULL, 75, 1024, 768, KHZ2PICOS(78750),
165 176, 16, 28, 1, 96, 3,
166 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
167 }, {
168 /* 1024x768 @ 85Hz */
169 NULL, 85, 1024, 768, KHZ2PICOS(94500),
170 208, 48, 36, 1, 96, 3,
171 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
172 }, {
173 /* 1152x864 @ 75Hz */
174 NULL, 75, 1152, 864, KHZ2PICOS(108000),
175 256, 64, 32, 1, 128, 3,
176 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
177 }, {
178 /* 1280x960 @ 60Hz */
179 NULL, 60, 1280, 960, KHZ2PICOS(108000),
180 312, 96, 36, 1, 112, 3,
181 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
182 }, {
183 /* 1280x960 @ 85Hz */
184 NULL, 85, 1280, 960, KHZ2PICOS(148500),
185 224, 64, 47, 1, 160, 3,
186 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
187 }, {
188 /* 1280x1024 @ 60Hz */
189 NULL, 60, 1280, 1024, KHZ2PICOS(108000),
190 248, 48, 38, 1, 112, 3,
191 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
192 }, {
193 /* 1280x1024 @ 75Hz */
194 NULL, 75, 1280, 1024, KHZ2PICOS(135000),
195 248, 16, 38, 1, 144, 3,
196 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
197 }, {
198 /* 1280x1024 @ 85Hz */
199 NULL, 85, 1280, 1024, KHZ2PICOS(157500),
200 224, 64, 44, 1, 160, 3,
201 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
202 }, {
203 /* 1600x1200 @ 60Hz */
204 NULL, 60, 1600, 1200, KHZ2PICOS(162000),
205 304, 64, 46, 1, 192, 3,
206 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
207 }, {
208 /* 1600x1200 @ 65Hz */
209 NULL, 65, 1600, 1200, KHZ2PICOS(175500),
210 304, 64, 46, 1, 192, 3,
211 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
212 }, {
213 /* 1600x1200 @ 70Hz */
214 NULL, 70, 1600, 1200, KHZ2PICOS(189000),
215 304, 64, 46, 1, 192, 3,
216 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
217 }, {
218 /* 1600x1200 @ 75Hz */
219 NULL, 75, 1600, 1200, KHZ2PICOS(202500),
220 304, 64, 46, 1, 192, 3,
221 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
222 }, {
223 /* 1600x1200 @ 85Hz */
224 NULL, 85, 1600, 1200, KHZ2PICOS(229500),
225 304, 64, 46, 1, 192, 3,
226 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
227 }, {
228 /* 1792x1344 @ 60Hz */
229 NULL, 60, 1792, 1344, KHZ2PICOS(204750),
230 328, 128, 46, 1, 200, 3,
231 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
232 }, {
233 /* 1792x1344 @ 75Hz */
234 NULL, 75, 1792, 1344, KHZ2PICOS(261000),
235 352, 96, 69, 1, 216, 3,
236 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
237 }, {
238 /* 1856x1392 @ 60Hz */
239 NULL, 60, 1856, 1392, KHZ2PICOS(218250),
240 352, 96, 43, 1, 224, 3,
241 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
242 }, {
243 /* 1856x1392 @ 75Hz */
244 NULL, 75, 1856, 1392, KHZ2PICOS(288000),
245 352, 128, 104, 1, 224, 3,
246 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
247 }, {
248 /* 1920x1440 @ 60Hz */
249 NULL, 60, 1920, 1440, KHZ2PICOS(234000),
250 344, 128, 56, 1, 208, 3,
251 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
252 }, {
253 /* 1920x1440 @ 75Hz */
254 NULL, 75, 1920, 1440, KHZ2PICOS(297000),
255 352, 144, 56, 1, 224, 3,
256 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
257 },
258};
259#define NUM_TOTAL_MODES ARRAY_SIZE(kyro_modedb)
260
261/*
262 * This needs to be kept ordered corresponding to kyro_modedb.
263 */
264enum {
265 VMODE_640_350_85,
266 VMODE_640_400_85,
267 VMODE_720_400_85,
268 VMODE_640_480_60,
269 VMODE_640_480_72,
270 VMODE_640_480_75,
271 VMODE_640_480_85,
272 VMODE_800_600_56,
273 VMODE_800_600_60,
274 VMODE_800_600_72,
275 VMODE_800_600_75,
276 VMODE_800_600_85,
277 VMODE_1024_768_60,
278 VMODE_1024_768_70,
279 VMODE_1024_768_75,
280 VMODE_1024_768_85,
281 VMODE_1152_864_75,
282 VMODE_1280_960_60,
283 VMODE_1280_960_85,
284 VMODE_1280_1024_60,
285 VMODE_1280_1024_75,
286 VMODE_1280_1024_85,
287 VMODE_1600_1200_60,
288 VMODE_1600_1200_65,
289 VMODE_1600_1200_70,
290 VMODE_1600_1200_75,
291 VMODE_1600_1200_85,
292 VMODE_1792_1344_60,
293 VMODE_1792_1344_75,
294 VMODE_1856_1392_60,
295 VMODE_1856_1392_75,
296 VMODE_1920_1440_60,
297 VMODE_1920_1440_75,
298};
299
300/* Accessors */
301static int kyro_dev_video_mode_set(struct fb_info *info)
302{
303 struct kyrofb_info *par = info->par;
304
305 /* Turn off display */
306 StopVTG(deviceInfo.pSTGReg);
307 DisableRamdacOutput(deviceInfo.pSTGReg);
308
309 /* Bring us out of VGA and into Hi-Res mode, if not already. */
310 DisableVGA(deviceInfo.pSTGReg);
311
312 if (InitialiseRamdac(deviceInfo.pSTGReg,
313 info->var.bits_per_pixel,
314 info->var.xres, info->var.yres,
315 par->HSP, par->VSP, &par->PIXCLK) < 0)
316 return -EINVAL;
317
318 SetupVTG(deviceInfo.pSTGReg, par);
319
320 ResetOverlayRegisters(deviceInfo.pSTGReg);
321
322 /* Turn on display in new mode */
323 EnableRamdacOutput(deviceInfo.pSTGReg);
324 StartVTG(deviceInfo.pSTGReg);
325
326 deviceInfo.ulNextFreeVidMem = info->var.xres * info->var.yres *
327 info->var.bits_per_pixel;
328 deviceInfo.ulOverlayOffset = 0;
329
330 return 0;
331}
332
333static int kyro_dev_overlay_create(u32 ulWidth,
334 u32 ulHeight, int bLinear)
335{
336 u32 offset;
337 u32 stride, uvStride;
338
339 if (deviceInfo.ulOverlayOffset != 0)
340 /*
341 * Can only create one overlay without resetting the card or
342 * changing display mode
343 */
344 return -EINVAL;
345
346 ResetOverlayRegisters(deviceInfo.pSTGReg);
347
348 /* Overlays are addressed in multiples of 16bytes or 32bytes, so make
349 * sure the start offset is on an appropriate boundary.
350 */
351 offset = deviceInfo.ulNextFreeVidMem;
352 if ((offset & 0x1f) != 0) {
353 offset = (offset + 32L) & 0xffffffE0L;
354 }
355
356 if (CreateOverlaySurface(deviceInfo.pSTGReg, ulWidth, ulHeight,
357 bLinear, offset, &stride, &uvStride) < 0)
358 return -EINVAL;
359
360 deviceInfo.ulOverlayOffset = offset;
361 deviceInfo.ulOverlayStride = stride;
362 deviceInfo.ulOverlayUVStride = uvStride;
363 deviceInfo.ulNextFreeVidMem = offset + (ulHeight * stride) + (ulHeight * 2 * uvStride);
364
365 SetOverlayBlendMode(deviceInfo.pSTGReg, GLOBAL_ALPHA, 0xf, 0x0);
366
367 return 0;
368}
369
370static int kyro_dev_overlay_viewport_set(u32 x, u32 y, u32 ulWidth, u32 ulHeight)
371{
372 u32 right;
373 u32 bottom;
374
375 if (deviceInfo.ulOverlayOffset == 0)
376 /* probably haven't called CreateOverlay yet */
377 return -EINVAL;
378
379 if (ulWidth == 0 || ulWidth == 0xffffffff ||
380 ulHeight == 0 || ulHeight == 0xffffffff ||
381 (x < 2 && ulWidth + 2 == 0))
382 return -EINVAL;
383
384 /*
385 * SetOverlayViewPort() adjusts X coordinates by +2 (left) and +1
386 * (right) before packing them into 16-bit register fields.
387 */
388 if (x > U16_MAX - 2 || y > U16_MAX)
389 return -EINVAL;
390
391 right = x + ulWidth;
392 bottom = y + ulHeight;
393
394 if (right < x || bottom < y)
395 return -EINVAL;
396
397 right--;
398 bottom--;
399
400 if (right > U16_MAX - 1 || bottom > U16_MAX)
401 return -EINVAL;
402
403 /* Stop Ramdac Output */
404 DisableRamdacOutput(deviceInfo.pSTGReg);
405
406 SetOverlayViewPort(deviceInfo.pSTGReg,
407 x, y, right, bottom);
408
409 EnableOverlayPlane(deviceInfo.pSTGReg);
410 /* Start Ramdac Output */
411 EnableRamdacOutput(deviceInfo.pSTGReg);
412
413 return 0;
414}
415
416static inline unsigned long get_line_length(int x, int bpp)
417{
418 return (unsigned long)((((x*bpp)+31)&~31) >> 3);
419}
420
421static int kyrofb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
422{
423 struct kyrofb_info *par = info->par;
424
425 if (!var->pixclock)
426 return -EINVAL;
427
428 if (var->bits_per_pixel != 16 && var->bits_per_pixel != 32) {
429 printk(KERN_WARNING "kyrofb: depth not supported: %u\n", var->bits_per_pixel);
430 return -EINVAL;
431 }
432
433 switch (var->bits_per_pixel) {
434 case 16:
435 var->red.offset = 11;
436 var->red.length = 5;
437 var->green.offset = 5;
438 var->green.length = 6;
439 var->blue.length = 5;
440 break;
441 case 32:
442 var->transp.offset = 24;
443 var->red.offset = 16;
444 var->green.offset = 8;
445 var->blue.offset = 0;
446
447 var->red.length = 8;
448 var->green.length = 8;
449 var->blue.length = 8;
450 var->transp.length = 8;
451 break;
452 }
453
454 /* Height/Width of picture in mm */
455 var->height = var->width = -1;
456
457 /* Timing information. All values are in picoseconds */
458
459 /* par->PIXCLK is in 100Hz units. Convert to picoseconds -
460 * ensuring we do not exceed 32 bit precision
461 */
462 /*
463 * XXX: Enabling this really screws over the pixclock value when we
464 * read it back with fbset. As such, leaving this commented out appears
465 * to do the right thing (at least for now) .. bearing in mind that we
466 * have infact already done the KHZ2PICOS conversion in both the modedb
467 * and kyro_var. -- PFM.
468 */
469// var->pixclock = 1000000000 / (par->PIXCLK / 10);
470
471 /* the header file claims we should use picoseconds
472 * - nobody else does though, the all use pixels and lines
473 * of h and v sizes. Both options here.
474 */
475
476 /*
477 * If we're being called by __fb_try_mode(), then we don't want to
478 * override any of the var settings that we've already parsed
479 * from our modedb. -- PFM.
480 */
481 if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_TEST)
482 return 0;
483
484 var->left_margin = par->HBP;
485 var->hsync_len = par->HST;
486 var->right_margin = par->HFP;
487
488 var->upper_margin = par->VBP;
489 var->vsync_len = par->VST;
490 var->lower_margin = par->VFP;
491
492 if (par->HSP == 1)
493 var->sync |= FB_SYNC_HOR_HIGH_ACT;
494 if (par->VSP == 1)
495 var->sync |= FB_SYNC_VERT_HIGH_ACT;
496
497 return 0;
498}
499
500static int kyrofb_set_par(struct fb_info *info)
501{
502 struct kyrofb_info *par = info->par;
503 unsigned long lineclock;
504 unsigned long frameclock;
505
506 /* Actual resolution */
507 par->XRES = info->var.xres;
508 par->YRES = info->var.yres;
509
510 /* pixel depth */
511 par->PIXDEPTH = info->var.bits_per_pixel;
512
513 /* Refresh rate */
514 /* time for a line in ns */
515 lineclock = (info->var.pixclock * (info->var.xres +
516 info->var.right_margin +
517 info->var.hsync_len +
518 info->var.left_margin)) / 1000;
519
520 if (!lineclock)
521 return -EINVAL;
522
523 /* time for a frame in ns (precision in 32bpp) */
524 frameclock = lineclock * (info->var.yres +
525 info->var.lower_margin +
526 info->var.vsync_len +
527 info->var.upper_margin);
528
529 /* Calculate refresh rate and horrizontal clocks */
530 par->VFREQ = (1000000000 + (frameclock / 2)) / frameclock;
531 par->HCLK = (1000000000 + (lineclock / 2)) / lineclock;
532 par->PIXCLK = ((1000000000 + (info->var.pixclock / 2))
533 / info->var.pixclock) * 10;
534
535 /* calculate horizontal timings */
536 par->HFP = info->var.right_margin;
537 par->HST = info->var.hsync_len;
538 par->HBP = info->var.left_margin;
539 par->HTot = par->XRES + par->HBP + par->HST + par->HFP;
540
541 /* calculate vertical timings */
542 par->VFP = info->var.lower_margin;
543 par->VST = info->var.vsync_len;
544 par->VBP = info->var.upper_margin;
545 par->VTot = par->YRES + par->VBP + par->VST + par->VFP;
546
547 par->HSP = (info->var.sync & FB_SYNC_HOR_HIGH_ACT) ? 1 : 0;
548 par->VSP = (info->var.sync & FB_SYNC_VERT_HIGH_ACT) ? 1 : 0;
549
550 kyro_dev_video_mode_set(info);
551
552 /* length of a line in bytes */
553 info->fix.line_length = get_line_length(par->XRES, par->PIXDEPTH);
554 info->fix.visual = FB_VISUAL_TRUECOLOR;
555
556 return 0;
557}
558
559static int kyrofb_setcolreg(u_int regno, u_int red, u_int green,
560 u_int blue, u_int transp, struct fb_info *info)
561{
562 struct kyrofb_info *par = info->par;
563
564 if (regno > 255)
565 return 1; /* Invalid register */
566
567 if (regno < 16) {
568 switch (info->var.bits_per_pixel) {
569 case 16:
570 par->palette[regno] =
571 (red & 0xf800) |
572 ((green & 0xfc00) >> 5) |
573 ((blue & 0xf800) >> 11);
574 break;
575 case 32:
576 red >>= 8; green >>= 8; blue >>= 8; transp >>= 8;
577 par->palette[regno] =
578 (transp << 24) | (red << 16) | (green << 8) | blue;
579 break;
580 }
581 }
582
583 return 0;
584}
585
586#ifndef MODULE
587static int __init kyrofb_setup(char *options)
588{
589 char *this_opt;
590
591 if (!options || !*options)
592 return 0;
593
594 while ((this_opt = strsep(&options, ","))) {
595 if (!*this_opt)
596 continue;
597 if (strcmp(this_opt, "nopan") == 0) {
598 nopan = 1;
599 } else if (strcmp(this_opt, "nowrap") == 0) {
600 nowrap = 1;
601 } else if (strcmp(this_opt, "nomtrr") == 0) {
602 nomtrr = 1;
603 } else {
604 mode_option = this_opt;
605 }
606 }
607
608 return 0;
609}
610#endif
611
612static int kyrofb_ioctl(struct fb_info *info,
613 unsigned int cmd, unsigned long arg)
614{
615 overlay_create ol_create;
616 overlay_viewport_set ol_viewport_set;
617 void __user *argp = (void __user *)arg;
618
619 switch (cmd) {
620 case KYRO_IOCTL_OVERLAY_CREATE:
621 if (copy_from_user(&ol_create, argp, sizeof(overlay_create)))
622 return -EFAULT;
623
624 if (kyro_dev_overlay_create(ol_create.ulWidth,
625 ol_create.ulHeight, 0) < 0) {
626 printk(KERN_ERR "Kyro FB: failed to create overlay surface.\n");
627
628 return -EINVAL;
629 }
630 break;
631 case KYRO_IOCTL_OVERLAY_VIEWPORT_SET:
632 if (copy_from_user(&ol_viewport_set, argp,
633 sizeof(overlay_viewport_set)))
634 return -EFAULT;
635
636 if (kyro_dev_overlay_viewport_set(ol_viewport_set.xOrgin,
637 ol_viewport_set.yOrgin,
638 ol_viewport_set.xSize,
639 ol_viewport_set.ySize) != 0)
640 {
641 printk(KERN_ERR "Kyro FB: failed to create overlay viewport.\n");
642 return -EINVAL;
643 }
644 break;
645 case KYRO_IOCTL_SET_VIDEO_MODE:
646 {
647 printk(KERN_ERR "Kyro FB: KYRO_IOCTL_SET_VIDEO_MODE is"
648 "obsolete, use the appropriate fb_ioctl()"
649 "command instead.\n");
650 return -EINVAL;
651 }
652 case KYRO_IOCTL_UVSTRIDE:
653 if (copy_to_user(argp, &deviceInfo.ulOverlayUVStride, sizeof(deviceInfo.ulOverlayUVStride)))
654 return -EFAULT;
655 break;
656 case KYRO_IOCTL_STRIDE:
657 if (copy_to_user(argp, &deviceInfo.ulOverlayStride, sizeof(deviceInfo.ulOverlayStride)))
658 return -EFAULT;
659 break;
660 case KYRO_IOCTL_OVERLAY_OFFSET:
661 if (copy_to_user(argp, &deviceInfo.ulOverlayOffset, sizeof(deviceInfo.ulOverlayOffset)))
662 return -EFAULT;
663 break;
664 }
665
666 return 0;
667}
668
669static const struct pci_device_id kyrofb_pci_tbl[] = {
670 { PCI_DEVICE(PCI_VENDOR_ID_ST, PCI_DEVICE_ID_STG4000) },
671 { }
672};
673
674MODULE_DEVICE_TABLE(pci, kyrofb_pci_tbl);
675
676static struct pci_driver kyrofb_pci_driver = {
677 .name = "kyrofb",
678 .id_table = kyrofb_pci_tbl,
679 .probe = kyrofb_probe,
680 .remove = kyrofb_remove,
681};
682
683static const struct fb_ops kyrofb_ops = {
684 .owner = THIS_MODULE,
685 FB_DEFAULT_IOMEM_OPS,
686 .fb_check_var = kyrofb_check_var,
687 .fb_set_par = kyrofb_set_par,
688 .fb_setcolreg = kyrofb_setcolreg,
689 .fb_ioctl = kyrofb_ioctl,
690};
691
692static int kyrofb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
693{
694 struct fb_info *info;
695 struct kyrofb_info *currentpar;
696 unsigned long size;
697 int err;
698
699 err = aperture_remove_conflicting_pci_devices(pdev, "kyrofb");
700 if (err)
701 return err;
702
703 err = pcim_enable_device(pdev);
704 if (err) {
705 printk(KERN_WARNING "kyrofb: Can't enable pdev: %d\n", err);
706 return err;
707 }
708
709 info = framebuffer_alloc(sizeof(struct kyrofb_info), &pdev->dev);
710 if (!info)
711 return -ENOMEM;
712
713 err = pcim_request_all_regions(pdev, "kyrofb");
714 if (err)
715 goto out_free_fb;
716
717 currentpar = info->par;
718
719 kyro_fix.smem_start = pci_resource_start(pdev, 0);
720 kyro_fix.smem_len = pci_resource_len(pdev, 0);
721 kyro_fix.mmio_start = pci_resource_start(pdev, 1);
722 kyro_fix.mmio_len = pci_resource_len(pdev, 1);
723
724 currentpar->regbase = deviceInfo.pSTGReg =
725 devm_ioremap(&pdev->dev, kyro_fix.mmio_start,
726 kyro_fix.mmio_len);
727 if (!currentpar->regbase)
728 goto out_free_fb;
729
730 info->screen_base = devm_ioremap_wc(&pdev->dev, kyro_fix.smem_start,
731 kyro_fix.smem_len);
732 if (!info->screen_base)
733 goto out_free_fb;
734
735 if (!nomtrr)
736 currentpar->wc_cookie = arch_phys_wc_add(kyro_fix.smem_start,
737 kyro_fix.smem_len);
738
739 kyro_fix.ypanstep = nopan ? 0 : 1;
740 kyro_fix.ywrapstep = nowrap ? 0 : 1;
741
742 info->fbops = &kyrofb_ops;
743 info->fix = kyro_fix;
744 info->pseudo_palette = currentpar->palette;
745
746 SetCoreClockPLL(deviceInfo.pSTGReg, pdev);
747
748 deviceInfo.ulNextFreeVidMem = 0;
749 deviceInfo.ulOverlayOffset = 0;
750
751 /* This should give a reasonable default video mode */
752 if (!fb_find_mode(&info->var, info, mode_option, kyro_modedb,
753 NUM_TOTAL_MODES, &kyro_modedb[VMODE_1024_768_75], 32))
754 info->var = kyro_var;
755
756 fb_alloc_cmap(&info->cmap, 256, 0);
757
758 kyrofb_set_par(info);
759 kyrofb_check_var(&info->var, info);
760
761 size = get_line_length(info->var.xres_virtual,
762 info->var.bits_per_pixel);
763 size *= info->var.yres_virtual;
764
765 fb_memset_io(info->screen_base, 0, size);
766
767 if (register_framebuffer(info) < 0)
768 goto out_free_fb;
769
770 fb_info(info, "%s frame buffer device, at %dx%d@%d using %ldk/%ldk of VRAM\n",
771 info->fix.id,
772 info->var.xres, info->var.yres, info->var.bits_per_pixel,
773 size >> 10, (unsigned long)info->fix.smem_len >> 10);
774
775 pci_set_drvdata(pdev, info);
776
777 return 0;
778
779out_free_fb:
780 framebuffer_release(info);
781
782 return -EINVAL;
783}
784
785static void kyrofb_remove(struct pci_dev *pdev)
786{
787 struct fb_info *info = pci_get_drvdata(pdev);
788 struct kyrofb_info *par = info->par;
789
790 /* Reset the board */
791 StopVTG(deviceInfo.pSTGReg);
792 DisableRamdacOutput(deviceInfo.pSTGReg);
793
794 /* Sync up the PLL */
795 SetCoreClockPLL(deviceInfo.pSTGReg, pdev);
796
797 deviceInfo.ulNextFreeVidMem = 0;
798 deviceInfo.ulOverlayOffset = 0;
799
800 arch_phys_wc_del(par->wc_cookie);
801
802 unregister_framebuffer(info);
803 framebuffer_release(info);
804}
805
806static int __init kyrofb_init(void)
807{
808#ifndef MODULE
809 char *option = NULL;
810#endif
811
812 if (fb_modesetting_disabled("kyrofb"))
813 return -ENODEV;
814
815#ifndef MODULE
816 if (fb_get_options("kyrofb", &option))
817 return -ENODEV;
818 kyrofb_setup(option);
819#endif
820 return pci_register_driver(&kyrofb_pci_driver);
821}
822
823static void __exit kyrofb_exit(void)
824{
825 pci_unregister_driver(&kyrofb_pci_driver);
826}
827
828module_init(kyrofb_init);
829
830#ifdef MODULE
831module_exit(kyrofb_exit);
832#endif
833
834MODULE_AUTHOR("STMicroelectronics; Paul Mundt <[email protected]>");
835MODULE_DESCRIPTION("STG4000/Kyro/PowerVR 3 driver");
836MODULE_LICENSE("GPL");