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 /****************************************************************************/
41 static 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
48 static 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
71 typedef 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) */
80 static device_info_t deviceInfo;
81
82 static char *mode_option = NULL;
83 static int nopan = 0;
84 static int nowrap = 1;
85 static int nomtrr = 0;
86
87 /* PCI driver prototypes */
88 static int kyrofb_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
89 static void kyrofb_remove(struct pci_dev *pdev);
90
91 static 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 */
264 enum {
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 */
kyro_dev_video_mode_set(struct fb_info * info)301 static 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
kyro_dev_overlay_create(u32 ulWidth,u32 ulHeight,int bLinear)333 static 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
kyro_dev_overlay_viewport_set(u32 x,u32 y,u32 ulWidth,u32 ulHeight)370 static int kyro_dev_overlay_viewport_set(u32 x, u32 y, u32 ulWidth, u32 ulHeight)
371 {
372 if (deviceInfo.ulOverlayOffset == 0)
373 /* probably haven't called CreateOverlay yet */
374 return -EINVAL;
375
376 if (ulWidth == 0 || ulWidth == 0xffffffff ||
377 ulHeight == 0 || ulHeight == 0xffffffff ||
378 (x < 2 && ulWidth + 2 == 0))
379 return -EINVAL;
380
381 /* Stop Ramdac Output */
382 DisableRamdacOutput(deviceInfo.pSTGReg);
383
384 SetOverlayViewPort(deviceInfo.pSTGReg,
385 x, y, x + ulWidth - 1, y + ulHeight - 1);
386
387 EnableOverlayPlane(deviceInfo.pSTGReg);
388 /* Start Ramdac Output */
389 EnableRamdacOutput(deviceInfo.pSTGReg);
390
391 return 0;
392 }
393
get_line_length(int x,int bpp)394 static inline unsigned long get_line_length(int x, int bpp)
395 {
396 return (unsigned long)((((x*bpp)+31)&~31) >> 3);
397 }
398
kyrofb_check_var(struct fb_var_screeninfo * var,struct fb_info * info)399 static int kyrofb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
400 {
401 struct kyrofb_info *par = info->par;
402
403 if (!var->pixclock)
404 return -EINVAL;
405
406 if (var->bits_per_pixel != 16 && var->bits_per_pixel != 32) {
407 printk(KERN_WARNING "kyrofb: depth not supported: %u\n", var->bits_per_pixel);
408 return -EINVAL;
409 }
410
411 switch (var->bits_per_pixel) {
412 case 16:
413 var->red.offset = 11;
414 var->red.length = 5;
415 var->green.offset = 5;
416 var->green.length = 6;
417 var->blue.length = 5;
418 break;
419 case 32:
420 var->transp.offset = 24;
421 var->red.offset = 16;
422 var->green.offset = 8;
423 var->blue.offset = 0;
424
425 var->red.length = 8;
426 var->green.length = 8;
427 var->blue.length = 8;
428 var->transp.length = 8;
429 break;
430 }
431
432 /* Height/Width of picture in mm */
433 var->height = var->width = -1;
434
435 /* Timing information. All values are in picoseconds */
436
437 /* par->PIXCLK is in 100Hz units. Convert to picoseconds -
438 * ensuring we do not exceed 32 bit precision
439 */
440 /*
441 * XXX: Enabling this really screws over the pixclock value when we
442 * read it back with fbset. As such, leaving this commented out appears
443 * to do the right thing (at least for now) .. bearing in mind that we
444 * have infact already done the KHZ2PICOS conversion in both the modedb
445 * and kyro_var. -- PFM.
446 */
447 // var->pixclock = 1000000000 / (par->PIXCLK / 10);
448
449 /* the header file claims we should use picoseconds
450 * - nobody else does though, the all use pixels and lines
451 * of h and v sizes. Both options here.
452 */
453
454 /*
455 * If we're being called by __fb_try_mode(), then we don't want to
456 * override any of the var settings that we've already parsed
457 * from our modedb. -- PFM.
458 */
459 if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_TEST)
460 return 0;
461
462 var->left_margin = par->HBP;
463 var->hsync_len = par->HST;
464 var->right_margin = par->HFP;
465
466 var->upper_margin = par->VBP;
467 var->vsync_len = par->VST;
468 var->lower_margin = par->VFP;
469
470 if (par->HSP == 1)
471 var->sync |= FB_SYNC_HOR_HIGH_ACT;
472 if (par->VSP == 1)
473 var->sync |= FB_SYNC_VERT_HIGH_ACT;
474
475 return 0;
476 }
477
kyrofb_set_par(struct fb_info * info)478 static int kyrofb_set_par(struct fb_info *info)
479 {
480 struct kyrofb_info *par = info->par;
481 unsigned long lineclock;
482 unsigned long frameclock;
483
484 /* Actual resolution */
485 par->XRES = info->var.xres;
486 par->YRES = info->var.yres;
487
488 /* pixel depth */
489 par->PIXDEPTH = info->var.bits_per_pixel;
490
491 /* Refresh rate */
492 /* time for a line in ns */
493 lineclock = (info->var.pixclock * (info->var.xres +
494 info->var.right_margin +
495 info->var.hsync_len +
496 info->var.left_margin)) / 1000;
497
498 if (!lineclock)
499 return -EINVAL;
500
501 /* time for a frame in ns (precision in 32bpp) */
502 frameclock = lineclock * (info->var.yres +
503 info->var.lower_margin +
504 info->var.vsync_len +
505 info->var.upper_margin);
506
507 /* Calculate refresh rate and horrizontal clocks */
508 par->VFREQ = (1000000000 + (frameclock / 2)) / frameclock;
509 par->HCLK = (1000000000 + (lineclock / 2)) / lineclock;
510 par->PIXCLK = ((1000000000 + (info->var.pixclock / 2))
511 / info->var.pixclock) * 10;
512
513 /* calculate horizontal timings */
514 par->HFP = info->var.right_margin;
515 par->HST = info->var.hsync_len;
516 par->HBP = info->var.left_margin;
517 par->HTot = par->XRES + par->HBP + par->HST + par->HFP;
518
519 /* calculate vertical timings */
520 par->VFP = info->var.lower_margin;
521 par->VST = info->var.vsync_len;
522 par->VBP = info->var.upper_margin;
523 par->VTot = par->YRES + par->VBP + par->VST + par->VFP;
524
525 par->HSP = (info->var.sync & FB_SYNC_HOR_HIGH_ACT) ? 1 : 0;
526 par->VSP = (info->var.sync & FB_SYNC_VERT_HIGH_ACT) ? 1 : 0;
527
528 kyro_dev_video_mode_set(info);
529
530 /* length of a line in bytes */
531 info->fix.line_length = get_line_length(par->XRES, par->PIXDEPTH);
532 info->fix.visual = FB_VISUAL_TRUECOLOR;
533
534 return 0;
535 }
536
kyrofb_setcolreg(u_int regno,u_int red,u_int green,u_int blue,u_int transp,struct fb_info * info)537 static int kyrofb_setcolreg(u_int regno, u_int red, u_int green,
538 u_int blue, u_int transp, struct fb_info *info)
539 {
540 struct kyrofb_info *par = info->par;
541
542 if (regno > 255)
543 return 1; /* Invalid register */
544
545 if (regno < 16) {
546 switch (info->var.bits_per_pixel) {
547 case 16:
548 par->palette[regno] =
549 (red & 0xf800) |
550 ((green & 0xfc00) >> 5) |
551 ((blue & 0xf800) >> 11);
552 break;
553 case 32:
554 red >>= 8; green >>= 8; blue >>= 8; transp >>= 8;
555 par->palette[regno] =
556 (transp << 24) | (red << 16) | (green << 8) | blue;
557 break;
558 }
559 }
560
561 return 0;
562 }
563
564 #ifndef MODULE
kyrofb_setup(char * options)565 static int __init kyrofb_setup(char *options)
566 {
567 char *this_opt;
568
569 if (!options || !*options)
570 return 0;
571
572 while ((this_opt = strsep(&options, ","))) {
573 if (!*this_opt)
574 continue;
575 if (strcmp(this_opt, "nopan") == 0) {
576 nopan = 1;
577 } else if (strcmp(this_opt, "nowrap") == 0) {
578 nowrap = 1;
579 } else if (strcmp(this_opt, "nomtrr") == 0) {
580 nomtrr = 1;
581 } else {
582 mode_option = this_opt;
583 }
584 }
585
586 return 0;
587 }
588 #endif
589
kyrofb_ioctl(struct fb_info * info,unsigned int cmd,unsigned long arg)590 static int kyrofb_ioctl(struct fb_info *info,
591 unsigned int cmd, unsigned long arg)
592 {
593 overlay_create ol_create;
594 overlay_viewport_set ol_viewport_set;
595 void __user *argp = (void __user *)arg;
596
597 switch (cmd) {
598 case KYRO_IOCTL_OVERLAY_CREATE:
599 if (copy_from_user(&ol_create, argp, sizeof(overlay_create)))
600 return -EFAULT;
601
602 if (kyro_dev_overlay_create(ol_create.ulWidth,
603 ol_create.ulHeight, 0) < 0) {
604 printk(KERN_ERR "Kyro FB: failed to create overlay surface.\n");
605
606 return -EINVAL;
607 }
608 break;
609 case KYRO_IOCTL_OVERLAY_VIEWPORT_SET:
610 if (copy_from_user(&ol_viewport_set, argp,
611 sizeof(overlay_viewport_set)))
612 return -EFAULT;
613
614 if (kyro_dev_overlay_viewport_set(ol_viewport_set.xOrgin,
615 ol_viewport_set.yOrgin,
616 ol_viewport_set.xSize,
617 ol_viewport_set.ySize) != 0)
618 {
619 printk(KERN_ERR "Kyro FB: failed to create overlay viewport.\n");
620 return -EINVAL;
621 }
622 break;
623 case KYRO_IOCTL_SET_VIDEO_MODE:
624 {
625 printk(KERN_ERR "Kyro FB: KYRO_IOCTL_SET_VIDEO_MODE is"
626 "obsolete, use the appropriate fb_ioctl()"
627 "command instead.\n");
628 return -EINVAL;
629 }
630 case KYRO_IOCTL_UVSTRIDE:
631 if (copy_to_user(argp, &deviceInfo.ulOverlayUVStride, sizeof(deviceInfo.ulOverlayUVStride)))
632 return -EFAULT;
633 break;
634 case KYRO_IOCTL_STRIDE:
635 if (copy_to_user(argp, &deviceInfo.ulOverlayStride, sizeof(deviceInfo.ulOverlayStride)))
636 return -EFAULT;
637 break;
638 case KYRO_IOCTL_OVERLAY_OFFSET:
639 if (copy_to_user(argp, &deviceInfo.ulOverlayOffset, sizeof(deviceInfo.ulOverlayOffset)))
640 return -EFAULT;
641 break;
642 }
643
644 return 0;
645 }
646
647 static const struct pci_device_id kyrofb_pci_tbl[] = {
648 { PCI_VENDOR_ID_ST, PCI_DEVICE_ID_STG4000,
649 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
650 { 0, }
651 };
652
653 MODULE_DEVICE_TABLE(pci, kyrofb_pci_tbl);
654
655 static struct pci_driver kyrofb_pci_driver = {
656 .name = "kyrofb",
657 .id_table = kyrofb_pci_tbl,
658 .probe = kyrofb_probe,
659 .remove = kyrofb_remove,
660 };
661
662 static const struct fb_ops kyrofb_ops = {
663 .owner = THIS_MODULE,
664 FB_DEFAULT_IOMEM_OPS,
665 .fb_check_var = kyrofb_check_var,
666 .fb_set_par = kyrofb_set_par,
667 .fb_setcolreg = kyrofb_setcolreg,
668 .fb_ioctl = kyrofb_ioctl,
669 };
670
kyrofb_probe(struct pci_dev * pdev,const struct pci_device_id * ent)671 static int kyrofb_probe(struct pci_dev *pdev, 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 err = aperture_remove_conflicting_pci_devices(pdev, "kyrofb");
679 if (err)
680 return err;
681
682 if ((err = pci_enable_device(pdev))) {
683 printk(KERN_WARNING "kyrofb: Can't enable pdev: %d\n", err);
684 return err;
685 }
686
687 info = framebuffer_alloc(sizeof(struct kyrofb_info), &pdev->dev);
688 if (!info)
689 return -ENOMEM;
690
691 currentpar = info->par;
692
693 kyro_fix.smem_start = pci_resource_start(pdev, 0);
694 kyro_fix.smem_len = pci_resource_len(pdev, 0);
695 kyro_fix.mmio_start = pci_resource_start(pdev, 1);
696 kyro_fix.mmio_len = pci_resource_len(pdev, 1);
697
698 currentpar->regbase = deviceInfo.pSTGReg =
699 ioremap(kyro_fix.mmio_start, kyro_fix.mmio_len);
700 if (!currentpar->regbase)
701 goto out_free_fb;
702
703 info->screen_base = pci_ioremap_wc_bar(pdev, 0);
704 if (!info->screen_base)
705 goto out_unmap_regs;
706
707 if (!nomtrr)
708 currentpar->wc_cookie = arch_phys_wc_add(kyro_fix.smem_start,
709 kyro_fix.smem_len);
710
711 kyro_fix.ypanstep = nopan ? 0 : 1;
712 kyro_fix.ywrapstep = nowrap ? 0 : 1;
713
714 info->fbops = &kyrofb_ops;
715 info->fix = kyro_fix;
716 info->pseudo_palette = currentpar->palette;
717
718 SetCoreClockPLL(deviceInfo.pSTGReg, pdev);
719
720 deviceInfo.ulNextFreeVidMem = 0;
721 deviceInfo.ulOverlayOffset = 0;
722
723 /* This should give a reasonable default video mode */
724 if (!fb_find_mode(&info->var, info, mode_option, kyro_modedb,
725 NUM_TOTAL_MODES, &kyro_modedb[VMODE_1024_768_75], 32))
726 info->var = kyro_var;
727
728 fb_alloc_cmap(&info->cmap, 256, 0);
729
730 kyrofb_set_par(info);
731 kyrofb_check_var(&info->var, info);
732
733 size = get_line_length(info->var.xres_virtual,
734 info->var.bits_per_pixel);
735 size *= info->var.yres_virtual;
736
737 fb_memset_io(info->screen_base, 0, size);
738
739 if (register_framebuffer(info) < 0)
740 goto out_unmap;
741
742 fb_info(info, "%s frame buffer device, at %dx%d@%d using %ldk/%ldk of VRAM\n",
743 info->fix.id,
744 info->var.xres, info->var.yres, info->var.bits_per_pixel,
745 size >> 10, (unsigned long)info->fix.smem_len >> 10);
746
747 pci_set_drvdata(pdev, info);
748
749 return 0;
750
751 out_unmap:
752 iounmap(info->screen_base);
753 out_unmap_regs:
754 iounmap(currentpar->regbase);
755 out_free_fb:
756 framebuffer_release(info);
757
758 return -EINVAL;
759 }
760
kyrofb_remove(struct pci_dev * pdev)761 static void kyrofb_remove(struct pci_dev *pdev)
762 {
763 struct fb_info *info = pci_get_drvdata(pdev);
764 struct kyrofb_info *par = info->par;
765
766 /* Reset the board */
767 StopVTG(deviceInfo.pSTGReg);
768 DisableRamdacOutput(deviceInfo.pSTGReg);
769
770 /* Sync up the PLL */
771 SetCoreClockPLL(deviceInfo.pSTGReg, pdev);
772
773 deviceInfo.ulNextFreeVidMem = 0;
774 deviceInfo.ulOverlayOffset = 0;
775
776 iounmap(info->screen_base);
777 iounmap(par->regbase);
778
779 arch_phys_wc_del(par->wc_cookie);
780
781 unregister_framebuffer(info);
782 framebuffer_release(info);
783 }
784
kyrofb_init(void)785 static int __init kyrofb_init(void)
786 {
787 #ifndef MODULE
788 char *option = NULL;
789 #endif
790
791 if (fb_modesetting_disabled("kyrofb"))
792 return -ENODEV;
793
794 #ifndef MODULE
795 if (fb_get_options("kyrofb", &option))
796 return -ENODEV;
797 kyrofb_setup(option);
798 #endif
799 return pci_register_driver(&kyrofb_pci_driver);
800 }
801
kyrofb_exit(void)802 static void __exit kyrofb_exit(void)
803 {
804 pci_unregister_driver(&kyrofb_pci_driver);
805 }
806
807 module_init(kyrofb_init);
808
809 #ifdef MODULE
810 module_exit(kyrofb_exit);
811 #endif
812
813 MODULE_AUTHOR("STMicroelectronics; Paul Mundt <lethal@linux-sh.org>");
814 MODULE_DESCRIPTION("STG4000/Kyro/PowerVR 3 driver");
815 MODULE_LICENSE("GPL");
816