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Merge branch 'pm-cpufreq'
[linux-2.6-block.git] / drivers / video / fbdev / kyro / fbdev.c
CommitLineData
1da177e4
LT		 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
1da177e4
LT		 12#include <linux/module.h>
13#include <linux/types.h>
14#include <linux/kernel.h>
1da177e4
LT		 15#include <linux/mm.h>
16#include <linux/errno.h>
17#include <linux/string.h>
1da177e4
LT		 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>
84902b7a 24#include <linux/uaccess.h>
1da177e4
LT		 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/****************************************************************************/
48c68c4f 40static struct fb_fix_screeninfo kyro_fix = {
1da177e4
LT		 41 .id = "ST Kyro",
42 .type = FB_TYPE_PACKED_PIXELS,
43 .visual = FB_VISUAL_TRUECOLOR,
44 .accel = FB_ACCEL_NONE,
45};
46
48c68c4f 47static struct fb_var_screeninfo kyro_var = {
1da177e4
LT		 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
1da177e4
LT		 70typedef 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) */
79static device_info_t deviceInfo;
80
48c68c4f
GKH		 81static char *mode_option = NULL;
82static int nopan = 0;
83static int nowrap = 1;
48c68c4f 84static int nomtrr = 0;
1da177e4
LT		 85
86/* PCI driver prototypes */
87static int kyrofb_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
88static void kyrofb_remove(struct pci_dev *pdev);
89
48c68c4f 90static struct fb_videomode kyro_modedb[] = {
1da177e4
LT		 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 */
263enum {
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 */
300static int kyro_dev_video_mode_set(struct fb_info *info)
301{
a26968df 302 struct kyrofb_info *par = info->par;
1da177e4
LT		 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
332static 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
369static 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 /* Stop Ramdac Output */
376 DisableRamdacOutput(deviceInfo.pSTGReg);
377
378 SetOverlayViewPort(deviceInfo.pSTGReg,
379 x, y, x + ulWidth - 1, y + ulHeight - 1);
380
381 EnableOverlayPlane(deviceInfo.pSTGReg);
382 /* Start Ramdac Output */
383 EnableRamdacOutput(deviceInfo.pSTGReg);
384
385 return 0;
386}
387
388static inline unsigned long get_line_length(int x, int bpp)
389{
390 return (unsigned long)((((x*bpp)+31)&~31) >> 3);
391}
392
393static int kyrofb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
394{
a26968df 395 struct kyrofb_info *par = info->par;
1da177e4
LT		 396
397 if (var->bits_per_pixel != 16 && var->bits_per_pixel != 32) {
398 printk(KERN_WARNING "kyrofb: depth not supported: %u\n", var->bits_per_pixel);
399 return -EINVAL;
400 }
401
402 switch (var->bits_per_pixel) {
403 case 16:
404 var->red.offset = 11;
405 var->red.length = 5;
406 var->green.offset = 5;
407 var->green.length = 6;
408 var->blue.length = 5;
409 break;
410 case 32:
411 var->transp.offset = 24;
412 var->red.offset = 16;
413 var->green.offset = 8;
414 var->blue.offset = 0;
415
416 var->red.length = 8;
417 var->green.length = 8;
418 var->blue.length = 8;
419 var->transp.length = 8;
420 break;
421 }
422
423 /* Height/Width of picture in mm */
424 var->height = var->width = -1;
425
426 /* Timing information. All values are in picoseconds */
427
428 /* par->PIXCLK is in 100Hz units. Convert to picoseconds -
429 * ensuring we do not exceed 32 bit precision
430 */
431 /*
432 * XXX: Enabling this really screws over the pixclock value when we
433 * read it back with fbset. As such, leaving this commented out appears
434 * to do the right thing (at least for now) .. bearing in mind that we
435 * have infact already done the KHZ2PICOS conversion in both the modedb
436 * and kyro_var. -- PFM.
437 */
438// var->pixclock = 1000000000 / (par->PIXCLK / 10);
439
440 /* the header file claims we should use picoseconds
441 * - nobody else does though, the all use pixels and lines
442 * of h and v sizes. Both options here.
443 */
444
445 /*
446 * If we're being called by __fb_try_mode(), then we don't want to
447 * override any of the var settings that we've already parsed
448 * from our modedb. -- PFM.
449 */
450 if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_TEST)
451 return 0;
452
453 var->left_margin = par->HBP;
454 var->hsync_len = par->HST;
455 var->right_margin = par->HFP;
456
457 var->upper_margin = par->VBP;
458 var->vsync_len = par->VST;
459 var->lower_margin = par->VFP;
460
461 if (par->HSP == 1)
462 var->sync |= FB_SYNC_HOR_HIGH_ACT;
463 if (par->VSP == 1)
464 var->sync |= FB_SYNC_VERT_HIGH_ACT;
465
466 return 0;
467}
468
469static int kyrofb_set_par(struct fb_info *info)
470{
a26968df 471 struct kyrofb_info *par = info->par;
1da177e4
LT		 472 unsigned long lineclock;
473 unsigned long frameclock;
474
475 /* Actual resolution */
476 par->XRES = info->var.xres;
477 par->YRES = info->var.yres;
478
479 /* pixel depth */
480 par->PIXDEPTH = info->var.bits_per_pixel;
481
482 /* Refresh rate */
483 /* time for a line in ns */
484 lineclock = (info->var.pixclock * (info->var.xres +
485 info->var.right_margin +
486 info->var.hsync_len +
487 info->var.left_margin)) / 1000;
488
489
490 /* time for a frame in ns (precision in 32bpp) */
491 frameclock = lineclock * (info->var.yres +
492 info->var.lower_margin +
493 info->var.vsync_len +
494 info->var.upper_margin);
495
496 /* Calculate refresh rate and horrizontal clocks */
497 par->VFREQ = (1000000000 + (frameclock / 2)) / frameclock;
498 par->HCLK = (1000000000 + (lineclock / 2)) / lineclock;
499 par->PIXCLK = ((1000000000 + (info->var.pixclock / 2))
500 / info->var.pixclock) * 10;
501
502 /* calculate horizontal timings */
503 par->HFP = info->var.right_margin;
504 par->HST = info->var.hsync_len;
505 par->HBP = info->var.left_margin;
506 par->HTot = par->XRES + par->HBP + par->HST + par->HFP;
507
508 /* calculate vertical timings */
509 par->VFP = info->var.lower_margin;
510 par->VST = info->var.vsync_len;
511 par->VBP = info->var.upper_margin;
512 par->VTot = par->YRES + par->VBP + par->VST + par->VFP;
513
514 par->HSP = (info->var.sync & FB_SYNC_HOR_HIGH_ACT) ? 1 : 0;
515 par->VSP = (info->var.sync & FB_SYNC_VERT_HIGH_ACT) ? 1 : 0;
516
517 kyro_dev_video_mode_set(info);
518
519 /* length of a line in bytes */
520 info->fix.line_length = get_line_length(par->XRES, par->PIXDEPTH);
521 info->fix.visual = FB_VISUAL_TRUECOLOR;
522
523 return 0;
524}
525
526static int kyrofb_setcolreg(u_int regno, u_int red, u_int green,
527 u_int blue, u_int transp, struct fb_info *info)
528{
a26968df
AD		 529 struct kyrofb_info *par = info->par;
530
1da177e4
LT		 531 if (regno > 255)
532 return 1; /* Invalid register */
533
534 if (regno < 16) {
535 switch (info->var.bits_per_pixel) {
536 case 16:
a26968df 537 par->palette[regno] =
1da177e4
LT		 538 (red & 0xf800) |
539 ((green & 0xfc00) >> 5) |
540 ((blue & 0xf800) >> 11);
541 break;
542 case 32:
543 red >>= 8; green >>= 8; blue >>= 8; transp >>= 8;
a26968df 544 par->palette[regno] =
1da177e4
LT		 545 (transp << 24) | (red << 16) | (green << 8) | blue;
546 break;
547 }
548 }
549
550 return 0;
551}
552
553#ifndef MODULE
554static int __init kyrofb_setup(char *options)
555{
556 char *this_opt;
557
558 if (!options || !*options)
559 return 0;
560
561 while ((this_opt = strsep(&options, ","))) {
562 if (!*this_opt)
563 continue;
564 if (strcmp(this_opt, "nopan") == 0) {
565 nopan = 1;
566 } else if (strcmp(this_opt, "nowrap") == 0) {
567 nowrap = 1;
1da177e4
LT		 568 } else if (strcmp(this_opt, "nomtrr") == 0) {
569 nomtrr = 1;
1da177e4
LT		 570 } else {
571 mode_option = this_opt;
572 }
573 }
574
575 return 0;
576}
577#endif
578
67a6680d
CH		 579static int kyrofb_ioctl(struct fb_info *info,
580 unsigned int cmd, unsigned long arg)
1da177e4
LT		 581{
582 overlay_create ol_create;
583 overlay_viewport_set ol_viewport_set;
584 void __user *argp = (void __user *)arg;
585
586 switch (cmd) {
587 case KYRO_IOCTL_OVERLAY_CREATE:
588 if (copy_from_user(&ol_create, argp, sizeof(overlay_create)))
589 return -EFAULT;
590
591 if (kyro_dev_overlay_create(ol_create.ulWidth,
592 ol_create.ulHeight, 0) < 0) {
593 printk(KERN_ERR "Kyro FB: failed to create overlay surface.\n");
594
595 return -EINVAL;
596 }
597 break;
598 case KYRO_IOCTL_OVERLAY_VIEWPORT_SET:
599 if (copy_from_user(&ol_viewport_set, argp,
600 sizeof(overlay_viewport_set)))
601 return -EFAULT;
602
603 if (kyro_dev_overlay_viewport_set(ol_viewport_set.xOrgin,
604 ol_viewport_set.yOrgin,
605 ol_viewport_set.xSize,
606 ol_viewport_set.ySize) != 0)
607 {
608 printk(KERN_ERR "Kyro FB: failed to create overlay viewport.\n");
609 return -EINVAL;
610 }
611 break;
612 case KYRO_IOCTL_SET_VIDEO_MODE:
613 {
614 printk(KERN_ERR "Kyro FB: KYRO_IOCTL_SET_VIDEO_MODE is"
615 "obsolete, use the appropriate fb_ioctl()"
616 "command instead.\n");
617 return -EINVAL;
618 }
1da177e4 619 case KYRO_IOCTL_UVSTRIDE:
2ab68ec9 620 if (copy_to_user(argp, &deviceInfo.ulOverlayUVStride, sizeof(deviceInfo.ulOverlayUVStride)))
1da177e4
LT		 621 return -EFAULT;
622 break;
623 case KYRO_IOCTL_STRIDE:
2ab68ec9 624 if (copy_to_user(argp, &deviceInfo.ulOverlayStride, sizeof(deviceInfo.ulOverlayStride)))
1da177e4
LT		 625 return -EFAULT;
626 break;
627 case KYRO_IOCTL_OVERLAY_OFFSET:
2ab68ec9 628 if (copy_to_user(argp, &deviceInfo.ulOverlayOffset, sizeof(deviceInfo.ulOverlayOffset)))
1da177e4
LT		 629 return -EFAULT;
630 break;
631 }
632
633 return 0;
634}
635
636static struct pci_device_id kyrofb_pci_tbl[] = {
637 { PCI_VENDOR_ID_ST, PCI_DEVICE_ID_STG4000,
638 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
639 { 0, }
640};
641
642MODULE_DEVICE_TABLE(pci, kyrofb_pci_tbl);
643
644static struct pci_driver kyrofb_pci_driver = {
645 .name = "kyrofb",
646 .id_table = kyrofb_pci_tbl,
647 .probe = kyrofb_probe,
48c68c4f 648 .remove = kyrofb_remove,
1da177e4
LT		 649};
650
651static struct fb_ops kyrofb_ops = {
652 .owner = THIS_MODULE,
653 .fb_check_var = kyrofb_check_var,
654 .fb_set_par = kyrofb_set_par,
655 .fb_setcolreg = kyrofb_setcolreg,
656 .fb_ioctl = kyrofb_ioctl,
657 .fb_fillrect = cfb_fillrect,
658 .fb_copyarea = cfb_copyarea,
659 .fb_imageblit = cfb_imageblit,
1da177e4
LT		 660};
661
48c68c4f 662static int kyrofb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1da177e4
LT		 663{
664 struct fb_info *info;
a26968df 665 struct kyrofb_info *currentpar;
1da177e4
LT		 666 unsigned long size;
667 int err;
668
669 if ((err = pci_enable_device(pdev))) {
670 printk(KERN_WARNING "kyrofb: Can't enable pdev: %d\n", err);
671 return err;
672 }
673
a26968df 674 info = framebuffer_alloc(sizeof(struct kyrofb_info), &pdev->dev);
1da177e4
LT		 675 if (!info)
676 return -ENOMEM;
677
a26968df 678 currentpar = info->par;
1da177e4
LT		 679
680 kyro_fix.smem_start = pci_resource_start(pdev, 0);
681 kyro_fix.smem_len = pci_resource_len(pdev, 0);
682 kyro_fix.mmio_start = pci_resource_start(pdev, 1);
683 kyro_fix.mmio_len = pci_resource_len(pdev, 1);
684
685 currentpar->regbase = deviceInfo.pSTGReg =
686 ioremap_nocache(kyro_fix.mmio_start, kyro_fix.mmio_len);
9e517ac8
LR		 687 if (!currentpar->regbase)
688 goto out_free_fb;
1da177e4 689
9e517ac8
LR		 690 info->screen_base = pci_ioremap_wc_bar(pdev, 0);
691 if (!info->screen_base)
692 goto out_unmap_regs;
1da177e4 693
1da177e4 694 if (!nomtrr)
9e517ac8
LR		 695 currentpar->wc_cookie = arch_phys_wc_add(kyro_fix.smem_start,
696 kyro_fix.smem_len);
1da177e4
LT		 697
698 kyro_fix.ypanstep = nopan ? 0 : 1;
699 kyro_fix.ywrapstep = nowrap ? 0 : 1;
700
701 info->fbops = &kyrofb_ops;
702 info->fix = kyro_fix;
a26968df 703 info->pseudo_palette = currentpar->palette;
1da177e4
LT		 704 info->flags = FBINFO_DEFAULT;
705
706 SetCoreClockPLL(deviceInfo.pSTGReg, pdev);
707
708 deviceInfo.ulNextFreeVidMem = 0;
709 deviceInfo.ulOverlayOffset = 0;
710
711 /* This should give a reasonable default video mode */
712 if (!fb_find_mode(&info->var, info, mode_option, kyro_modedb,
713 NUM_TOTAL_MODES, &kyro_modedb[VMODE_1024_768_75], 32))
714 info->var = kyro_var;
715
716 fb_alloc_cmap(&info->cmap, 256, 0);
717
718 kyrofb_set_par(info);
719 kyrofb_check_var(&info->var, info);
720
721 size = get_line_length(info->var.xres_virtual,
722 info->var.bits_per_pixel);
723 size *= info->var.yres_virtual;
724
725 fb_memset(info->screen_base, 0, size);
726
1da177e4
LT		 727 if (register_framebuffer(info) < 0)
728 goto out_unmap;
729
31b6780c
JP		 730 fb_info(info, "%s frame buffer device, at %dx%d@%d using %ldk/%ldk of VRAM\n",
731 info->fix.id,
732 info->var.xres, info->var.yres, info->var.bits_per_pixel,
733 size >> 10, (unsigned long)info->fix.smem_len >> 10);
1da177e4
LT		 734
735 pci_set_drvdata(pdev, info);
736
737 return 0;
738
739out_unmap:
1da177e4 740 iounmap(info->screen_base);
9e517ac8
LR		 741out_unmap_regs:
742 iounmap(currentpar->regbase);
743out_free_fb:
a26968df 744 framebuffer_release(info);
1da177e4
LT		 745
746 return -EINVAL;
747}
748
48c68c4f 749static void kyrofb_remove(struct pci_dev *pdev)
1da177e4
LT		 750{
751 struct fb_info *info = pci_get_drvdata(pdev);
a26968df 752 struct kyrofb_info *par = info->par;
1da177e4
LT		 753
754 /* Reset the board */
755 StopVTG(deviceInfo.pSTGReg);
756 DisableRamdacOutput(deviceInfo.pSTGReg);
757
758 /* Sync up the PLL */
759 SetCoreClockPLL(deviceInfo.pSTGReg, pdev);
760
761 deviceInfo.ulNextFreeVidMem = 0;
762 deviceInfo.ulOverlayOffset = 0;
763
764 iounmap(info->screen_base);
765 iounmap(par->regbase);
766
9e517ac8 767 arch_phys_wc_del(par->wc_cookie);
1da177e4
LT		 768
769 unregister_framebuffer(info);
a26968df 770 framebuffer_release(info);
1da177e4
LT		 771}
772
773static int __init kyrofb_init(void)
774{
775#ifndef MODULE
776 char *option = NULL;
777
778 if (fb_get_options("kyrofb", &option))
779 return -ENODEV;
780 kyrofb_setup(option);
781#endif
782 return pci_register_driver(&kyrofb_pci_driver);
783}
784
785static void __exit kyrofb_exit(void)
786{
787 pci_unregister_driver(&kyrofb_pci_driver);
788}
789
790module_init(kyrofb_init);
791
792#ifdef MODULE
793module_exit(kyrofb_exit);
794#endif
795
796MODULE_AUTHOR("STMicroelectronics; Paul Mundt <lethal@linux-sh.org>");
797MODULE_LICENSE("GPL");
Linux 6.x block layer and io_uring tree(s)