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