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Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
[cris-mirror.git] / drivers / staging / sm750fb / sm750.c
blob6ed004e40855097b9d8a445454580cdd6a811719
1 #include <linux/kernel.h>
2 #include <linux/module.h>
3 #include <linux/errno.h>
4 #include <linux/string.h>
5 #include <linux/mm.h>
6 #include <linux/slab.h>
7 #include <linux/delay.h>
8 #include <linux/fb.h>
9 #include <linux/ioport.h>
10 #include <linux/init.h>
11 #include <linux/pci.h>
12 #include <linux/mm_types.h>
13 #include <linux/vmalloc.h>
14 #include <linux/pagemap.h>
15 #include <linux/screen_info.h>
16 #include <linux/console.h>
17 #include <asm/fb.h>
18 #include "sm750.h"
19 #include "sm750_accel.h"
20 #include "sm750_cursor.h"
21
22 /*
23 * #ifdef __BIG_ENDIAN
24 * ssize_t lynxfb_ops_write(struct fb_info *info, const char __user *buf,
25 * size_t count, loff_t *ppos);
26 * ssize_t lynxfb_ops_read(struct fb_info *info, char __user *buf,
27 * size_t count, loff_t *ppos);
28 * #endif
29 */
30
31 /* common var for all device */
32 static int g_hwcursor = 1;
33 static int g_noaccel;
34 static int g_nomtrr;
35 static const char *g_fbmode[] = {NULL, NULL};
36 static const char *g_def_fbmode = "800x600-16@60";
37 static char *g_settings;
38 static int g_dualview;
39 static char *g_option;
40
41 static const struct fb_videomode lynx750_ext[] = {
42 /* 1024x600-60 VESA [1.71:1] */
43 {NULL, 60, 1024, 600, 20423, 144, 40, 18, 1, 104, 3,
44 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
45 FB_VMODE_NONINTERLACED},
46
47 /* 1024x600-70 VESA */
48 {NULL, 70, 1024, 600, 17211, 152, 48, 21, 1, 104, 3,
49 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
50 FB_VMODE_NONINTERLACED},
51
52 /* 1024x600-75 VESA */
53 {NULL, 75, 1024, 600, 15822, 160, 56, 23, 1, 104, 3,
54 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
55 FB_VMODE_NONINTERLACED},
56
57 /* 1024x600-85 VESA */
58 {NULL, 85, 1024, 600, 13730, 168, 56, 26, 1, 112, 3,
59 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
60 FB_VMODE_NONINTERLACED},
61
62 /* 720x480 */
63 {NULL, 60, 720, 480, 37427, 88, 16, 13, 1, 72, 3,
64 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
65 FB_VMODE_NONINTERLACED},
66
67 /* 1280x720 [1.78:1] */
68 {NULL, 60, 1280, 720, 13426, 162, 86, 22, 1, 136, 3,
69 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
70 FB_VMODE_NONINTERLACED},
71
72 /* 1280x768@60 */
73 {NULL, 60, 1280, 768, 12579, 192, 64, 20, 3, 128, 7,
74 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
75 FB_VMODE_NONINTERLACED},
76
77 /* 1360 x 768 [1.77083:1] */
78 {NULL, 60, 1360, 768, 11804, 208, 64, 23, 1, 144, 3,
79 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
80 FB_VMODE_NONINTERLACED},
81
82 /* 1368 x 768 [1.78:1] */
83 {NULL, 60, 1368, 768, 11647, 216, 72, 23, 1, 144, 3,
84 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
85 FB_VMODE_NONINTERLACED},
86
87 /* 1440 x 900 [16:10] */
88 {NULL, 60, 1440, 900, 9392, 232, 80, 28, 1, 152, 3,
89 FB_SYNC_VERT_HIGH_ACT,
90 FB_VMODE_NONINTERLACED},
91
92 /* 1440x960 [15:10] */
93 {NULL, 60, 1440, 960, 8733, 240, 88, 30, 1, 152, 3,
94 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
95 FB_VMODE_NONINTERLACED},
96
97 /* 1920x1080 [16:9] */
98 {NULL, 60, 1920, 1080, 6734, 148, 88, 41, 1, 44, 3,
99 FB_SYNC_VERT_HIGH_ACT,
100 FB_VMODE_NONINTERLACED},
101 };
102
103
104 /* no hardware cursor supported under version 2.6.10, kernel bug */
105 static int lynxfb_ops_cursor(struct fb_info *info, struct fb_cursor *fbcursor)
106 {
107 struct lynxfb_par *par;
108 struct lynxfb_crtc *crtc;
109 struct lynx_cursor *cursor;
110
111 par = info->par;
112 crtc = &par->crtc;
113 cursor = &crtc->cursor;
114
115 if (fbcursor->image.width > cursor->maxW ||
116 fbcursor->image.height > cursor->maxH ||
117 fbcursor->image.depth > 1) {
118 return -ENXIO;
119 }
120
121 hw_cursor_disable(cursor);
122 if (fbcursor->set & FB_CUR_SETSIZE)
123 hw_cursor_setSize(cursor,
124 fbcursor->image.width,
125 fbcursor->image.height);
126
127 if (fbcursor->set & FB_CUR_SETPOS)
128 hw_cursor_setPos(cursor,
129 fbcursor->image.dx - info->var.xoffset,
130 fbcursor->image.dy - info->var.yoffset);
131
132 if (fbcursor->set & FB_CUR_SETCMAP) {
133 /* get the 16bit color of kernel means */
134 u16 fg, bg;
135
136 fg = ((info->cmap.red[fbcursor->image.fg_color] & 0xf800)) |
137 ((info->cmap.green[fbcursor->image.fg_color] & 0xfc00) >> 5) |
138 ((info->cmap.blue[fbcursor->image.fg_color] & 0xf800) >> 11);
139
140 bg = ((info->cmap.red[fbcursor->image.bg_color] & 0xf800)) |
141 ((info->cmap.green[fbcursor->image.bg_color] & 0xfc00) >> 5) |
142 ((info->cmap.blue[fbcursor->image.bg_color] & 0xf800) >> 11);
143
144 hw_cursor_setColor(cursor, fg, bg);
145 }
146
147 if (fbcursor->set & (FB_CUR_SETSHAPE | FB_CUR_SETIMAGE)) {
148 hw_cursor_setData(cursor,
149 fbcursor->rop,
150 fbcursor->image.data,
151 fbcursor->mask);
152 }
153
154 if (fbcursor->enable)
155 hw_cursor_enable(cursor);
156
157 return 0;
158 }
159
160 static void lynxfb_ops_fillrect(struct fb_info *info,
161 const struct fb_fillrect *region)
162 {
163 struct lynxfb_par *par;
164 struct sm750_dev *sm750_dev;
165 unsigned int base, pitch, Bpp, rop;
166 u32 color;
167
168 if (info->state != FBINFO_STATE_RUNNING)
169 return;
170
171 par = info->par;
172 sm750_dev = par->dev;
173
174 /*
175 * each time 2d function begin to work,below three variable always need
176 * be set, seems we can put them together in some place
177 */
178 base = par->crtc.oScreen;
179 pitch = info->fix.line_length;
180 Bpp = info->var.bits_per_pixel >> 3;
181
182 color = (Bpp == 1) ? region->color :
183 ((u32 *)info->pseudo_palette)[region->color];
184 rop = (region->rop != ROP_COPY) ? HW_ROP2_XOR : HW_ROP2_COPY;
185
186 /*
187 * If not use spin_lock,system will die if user load driver
188 * and immediately unload driver frequently (dual)
189 */
190 if (sm750_dev->fb_count > 1)
191 spin_lock(&sm750_dev->slock);
192
193 sm750_dev->accel.de_fillrect(&sm750_dev->accel,
194 base, pitch, Bpp,
195 region->dx, region->dy,
196 region->width, region->height,
197 color, rop);
198 if (sm750_dev->fb_count > 1)
199 spin_unlock(&sm750_dev->slock);
200 }
201
202 static void lynxfb_ops_copyarea(struct fb_info *info,
203 const struct fb_copyarea *region)
204 {
205 struct lynxfb_par *par;
206 struct sm750_dev *sm750_dev;
207 unsigned int base, pitch, Bpp;
208
209 par = info->par;
210 sm750_dev = par->dev;
211
212 /*
213 * each time 2d function begin to work,below three variable always need
214 * be set, seems we can put them together in some place
215 */
216 base = par->crtc.oScreen;
217 pitch = info->fix.line_length;
218 Bpp = info->var.bits_per_pixel >> 3;
219
220 /*
221 * If not use spin_lock, system will die if user load driver
222 * and immediately unload driver frequently (dual)
223 */
224 if (sm750_dev->fb_count > 1)
225 spin_lock(&sm750_dev->slock);
226
227 sm750_dev->accel.de_copyarea(&sm750_dev->accel,
228 base, pitch, region->sx, region->sy,
229 base, pitch, Bpp, region->dx, region->dy,
230 region->width, region->height,
231 HW_ROP2_COPY);
232 if (sm750_dev->fb_count > 1)
233 spin_unlock(&sm750_dev->slock);
234 }
235
236 static void lynxfb_ops_imageblit(struct fb_info *info,
237 const struct fb_image *image)
238 {
239 unsigned int base, pitch, Bpp;
240 unsigned int fgcol, bgcol;
241 struct lynxfb_par *par;
242 struct sm750_dev *sm750_dev;
243
244 par = info->par;
245 sm750_dev = par->dev;
246 /*
247 * each time 2d function begin to work,below three variable always need
248 * be set, seems we can put them together in some place
249 */
250 base = par->crtc.oScreen;
251 pitch = info->fix.line_length;
252 Bpp = info->var.bits_per_pixel >> 3;
253
254 /* TODO: Implement hardware acceleration for image->depth > 1 */
255 if (image->depth != 1) {
256 cfb_imageblit(info, image);
257 return;
258 }
259
260 if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
261 info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
262 fgcol = ((u32 *)info->pseudo_palette)[image->fg_color];
263 bgcol = ((u32 *)info->pseudo_palette)[image->bg_color];
264 } else {
265 fgcol = image->fg_color;
266 bgcol = image->bg_color;
267 }
268
269 /*
270 * If not use spin_lock, system will die if user load driver
271 * and immediately unload driver frequently (dual)
272 */
273 if (sm750_dev->fb_count > 1)
274 spin_lock(&sm750_dev->slock);
275
276 sm750_dev->accel.de_imageblit(&sm750_dev->accel,
277 image->data, image->width >> 3, 0,
278 base, pitch, Bpp,
279 image->dx, image->dy,
280 image->width, image->height,
281 fgcol, bgcol, HW_ROP2_COPY);
282 if (sm750_dev->fb_count > 1)
283 spin_unlock(&sm750_dev->slock);
284 }
285
286 static int lynxfb_ops_pan_display(struct fb_var_screeninfo *var,
287 struct fb_info *info)
288 {
289 struct lynxfb_par *par;
290 struct lynxfb_crtc *crtc;
291
292 if (!info)
293 return -EINVAL;
294
295 par = info->par;
296 crtc = &par->crtc;
297 return hw_sm750_pan_display(crtc, var, info);
298 }
299
300 static int lynxfb_ops_set_par(struct fb_info *info)
301 {
302 struct lynxfb_par *par;
303 struct lynxfb_crtc *crtc;
304 struct lynxfb_output *output;
305 struct fb_var_screeninfo *var;
306 struct fb_fix_screeninfo *fix;
307 int ret;
308 unsigned int line_length;
309
310 if (!info)
311 return -EINVAL;
312
313 ret = 0;
314 par = info->par;
315 crtc = &par->crtc;
316 output = &par->output;
317 var = &info->var;
318 fix = &info->fix;
319
320 /* fix structure is not so FIX ... */
321 line_length = var->xres_virtual * var->bits_per_pixel / 8;
322 line_length = ALIGN(line_length, crtc->line_pad);
323 fix->line_length = line_length;
324 pr_info("fix->line_length = %d\n", fix->line_length);
325
326 /*
327 * var->red,green,blue,transp are need to be set by driver
328 * and these data should be set before setcolreg routine
329 */
330
331 switch (var->bits_per_pixel) {
332 case 8:
333 fix->visual = FB_VISUAL_PSEUDOCOLOR;
334 var->red.offset = 0;
335 var->red.length = 8;
336 var->green.offset = 0;
337 var->green.length = 8;
338 var->blue.offset = 0;
339 var->blue.length = 8;
340 var->transp.length = 0;
341 var->transp.offset = 0;
342 break;
343 case 16:
344 var->red.offset = 11;
345 var->red.length = 5;
346 var->green.offset = 5;
347 var->green.length = 6;
348 var->blue.offset = 0;
349 var->blue.length = 5;
350 var->transp.length = 0;
351 var->transp.offset = 0;
352 fix->visual = FB_VISUAL_TRUECOLOR;
353 break;
354 case 24:
355 case 32:
356 var->red.offset = 16;
357 var->red.length = 8;
358 var->green.offset = 8;
359 var->green.length = 8;
360 var->blue.offset = 0;
361 var->blue.length = 8;
362 fix->visual = FB_VISUAL_TRUECOLOR;
363 break;
364 default:
365 ret = -EINVAL;
366 break;
367 }
368 var->height = var->width = -1;
369 var->accel_flags = 0;/*FB_ACCELF_TEXT;*/
370
371 if (ret) {
372 pr_err("pixel bpp format not satisfied\n.");
373 return ret;
374 }
375 ret = hw_sm750_crtc_setMode(crtc, var, fix);
376 if (!ret)
377 ret = hw_sm750_output_setMode(output, var, fix);
378 return ret;
379 }
380
381 static inline unsigned int chan_to_field(unsigned int chan,
382 struct fb_bitfield *bf)
383 {
384 chan &= 0xffff;
385 chan >>= 16 - bf->length;
386 return chan << bf->offset;
387 }
388
389 #ifdef CONFIG_PM
390 static int lynxfb_suspend(struct pci_dev *pdev, pm_message_t mesg)
391 {
392 struct fb_info *info;
393 struct sm750_dev *sm750_dev;
394 int ret;
395
396 if (mesg.event == pdev->dev.power.power_state.event)
397 return 0;
398
399 ret = 0;
400 sm750_dev = pci_get_drvdata(pdev);
401 switch (mesg.event) {
402 case PM_EVENT_FREEZE:
403 case PM_EVENT_PRETHAW:
404 pdev->dev.power.power_state = mesg;
405 return 0;
406 }
407
408 console_lock();
409 if (mesg.event & PM_EVENT_SLEEP) {
410 info = sm750_dev->fbinfo[0];
411 if (info)
412 /* 1 means do suspend */
413 fb_set_suspend(info, 1);
414 info = sm750_dev->fbinfo[1];
415 if (info)
416 /* 1 means do suspend */
417 fb_set_suspend(info, 1);
418
419 ret = pci_save_state(pdev);
420 if (ret) {
421 dev_err(&pdev->dev,
422 "error:%d occurred in pci_save_state\n", ret);
423 return ret;
424 }
425
426 ret = pci_set_power_state(pdev, pci_choose_state(pdev, mesg));
427 if (ret) {
428 dev_err(&pdev->dev,
429 "error:%d occurred in pci_set_power_state\n",
430 ret);
431 return ret;
432 }
433 }
434
435 pdev->dev.power.power_state = mesg;
436 console_unlock();
437 return ret;
438 }
439
440 static int lynxfb_resume(struct pci_dev *pdev)
441 {
442 struct fb_info *info;
443 struct sm750_dev *sm750_dev;
444
445 struct lynxfb_par *par;
446 struct lynxfb_crtc *crtc;
447 struct lynx_cursor *cursor;
448
449 int ret;
450
451 ret = 0;
452 sm750_dev = pci_get_drvdata(pdev);
453
454 console_lock();
455
456 ret = pci_set_power_state(pdev, PCI_D0);
457 if (ret) {
458 dev_err(&pdev->dev,
459 "error:%d occurred in pci_set_power_state\n", ret);
460 return ret;
461 }
462
463 if (pdev->dev.power.power_state.event != PM_EVENT_FREEZE) {
464 pci_restore_state(pdev);
465 ret = pci_enable_device(pdev);
466 if (ret) {
467 dev_err(&pdev->dev,
468 "error:%d occurred in pci_enable_device\n",
469 ret);
470 return ret;
471 }
472 pci_set_master(pdev);
473 }
474
475 hw_sm750_inithw(sm750_dev, pdev);
476
477 info = sm750_dev->fbinfo[0];
478
479 if (info) {
480 par = info->par;
481 crtc = &par->crtc;
482 cursor = &crtc->cursor;
483 memset_io(cursor->vstart, 0x0, cursor->size);
484 memset_io(crtc->vScreen, 0x0, crtc->vidmem_size);
485 lynxfb_ops_set_par(info);
486 fb_set_suspend(info, 0);
487 }
488
489 info = sm750_dev->fbinfo[1];
490
491 if (info) {
492 par = info->par;
493 crtc = &par->crtc;
494 cursor = &crtc->cursor;
495 memset_io(cursor->vstart, 0x0, cursor->size);
496 memset_io(crtc->vScreen, 0x0, crtc->vidmem_size);
497 lynxfb_ops_set_par(info);
498 fb_set_suspend(info, 0);
499 }
500
501 pdev->dev.power.power_state.event = PM_EVENT_RESUME;
502 console_unlock();
503 return ret;
504 }
505 #endif
506
507 static int lynxfb_ops_check_var(struct fb_var_screeninfo *var,
508 struct fb_info *info)
509 {
510 struct lynxfb_par *par;
511 struct lynxfb_crtc *crtc;
512 struct lynxfb_output *output;
513 resource_size_t request;
514
515 par = info->par;
516 crtc = &par->crtc;
517 output = &par->output;
518
519 pr_debug("check var:%dx%d-%d\n",
520 var->xres,
521 var->yres,
522 var->bits_per_pixel);
523
524 switch (var->bits_per_pixel) {
525 case 8:
526 info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
527 var->red.offset = 0;
528 var->red.length = 8;
529 var->green.offset = 0;
530 var->green.length = 8;
531 var->blue.offset = 0;
532 var->blue.length = 8;
533 var->transp.length = 0;
534 var->transp.offset = 0;
535 break;
536 case 16:
537 var->red.offset = 11;
538 var->red.length = 5;
539 var->green.offset = 5;
540 var->green.length = 6;
541 var->blue.offset = 0;
542 var->blue.length = 5;
543 var->transp.length = 0;
544 var->transp.offset = 0;
545 info->fix.visual = FB_VISUAL_TRUECOLOR;
546 break;
547 case 24:
548 case 32:
549 var->red.offset = 16;
550 var->red.length = 8;
551 var->green.offset = 8;
552 var->green.length = 8;
553 var->blue.offset = 0;
554 var->blue.length = 8;
555 info->fix.visual = FB_VISUAL_TRUECOLOR;
556 break;
557 default:
558 pr_err("bpp %d not supported\n", var->bits_per_pixel);
559 return -EINVAL;
560 }
561 var->height = var->width = -1;
562 var->accel_flags = 0;/* FB_ACCELF_TEXT; */
563
564 /* check if current fb's video memory big enought to hold the onscreen*/
565 request = var->xres_virtual * (var->bits_per_pixel >> 3);
566 /* defaulty crtc->channel go with par->index */
567
568 request = ALIGN(request, crtc->line_pad);
569 request = request * var->yres_virtual;
570 if (crtc->vidmem_size < request) {
571 pr_err("not enough video memory for mode\n");
572 return -ENOMEM;
573 }
574
575 return hw_sm750_crtc_checkMode(crtc, var);
576 }
577
578 static int lynxfb_ops_setcolreg(unsigned regno,
579 unsigned red,
580 unsigned green,
581 unsigned blue,
582 unsigned transp,
583 struct fb_info *info)
584 {
585 struct lynxfb_par *par;
586 struct lynxfb_crtc *crtc;
587 struct fb_var_screeninfo *var;
588 int ret;
589
590 par = info->par;
591 crtc = &par->crtc;
592 var = &info->var;
593 ret = 0;
594
595 if (regno > 256) {
596 pr_err("regno = %d\n", regno);
597 return -EINVAL;
598 }
599
600 if (info->var.grayscale)
601 red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8;
602
603 if (var->bits_per_pixel == 8 &&
604 info->fix.visual == FB_VISUAL_PSEUDOCOLOR) {
605 red >>= 8;
606 green >>= 8;
607 blue >>= 8;
608 ret = hw_sm750_setColReg(crtc, regno, red, green, blue);
609 goto exit;
610 }
611
612 if (info->fix.visual == FB_VISUAL_TRUECOLOR && regno < 256) {
613 u32 val;
614
615 if (var->bits_per_pixel == 16 ||
616 var->bits_per_pixel == 32 ||
617 var->bits_per_pixel == 24) {
618 val = chan_to_field(red, &var->red);
619 val |= chan_to_field(green, &var->green);
620 val |= chan_to_field(blue, &var->blue);
621 par->pseudo_palette[regno] = val;
622 goto exit;
623 }
624 }
625
626 ret = -EINVAL;
627
628 exit:
629 return ret;
630 }
631
632 static int lynxfb_ops_blank(int blank, struct fb_info *info)
633 {
634 struct lynxfb_par *par;
635 struct lynxfb_output *output;
636
637 pr_debug("blank = %d.\n", blank);
638 par = info->par;
639 output = &par->output;
640 return output->proc_setBLANK(output, blank);
641 }
642
643 static int sm750fb_set_drv(struct lynxfb_par *par)
644 {
645 int ret;
646 struct sm750_dev *sm750_dev;
647 struct lynxfb_output *output;
648 struct lynxfb_crtc *crtc;
649
650 ret = 0;
651
652 sm750_dev = par->dev;
653 output = &par->output;
654 crtc = &par->crtc;
655
656 crtc->vidmem_size = sm750_dev->vidmem_size;
657 if (sm750_dev->fb_count > 1)
658 crtc->vidmem_size >>= 1;
659
660 /* setup crtc and output member */
661 sm750_dev->hwCursor = g_hwcursor;
662
663 crtc->line_pad = 16;
664 crtc->xpanstep = 8;
665 crtc->ypanstep = 1;
666 crtc->ywrapstep = 0;
667
668 output->proc_setBLANK = (sm750_dev->revid == SM750LE_REVISION_ID) ?
669 hw_sm750le_setBLANK : hw_sm750_setBLANK;
670 /* chip specific phase */
671 sm750_dev->accel.de_wait = (sm750_dev->revid == SM750LE_REVISION_ID) ?
672 hw_sm750le_deWait : hw_sm750_deWait;
673 switch (sm750_dev->dataflow) {
674 case sm750_simul_pri:
675 output->paths = sm750_pnc;
676 crtc->channel = sm750_primary;
677 crtc->oScreen = 0;
678 crtc->vScreen = sm750_dev->pvMem;
679 pr_info("use simul primary mode\n");
680 break;
681 case sm750_simul_sec:
682 output->paths = sm750_pnc;
683 crtc->channel = sm750_secondary;
684 crtc->oScreen = 0;
685 crtc->vScreen = sm750_dev->pvMem;
686 break;
687 case sm750_dual_normal:
688 if (par->index == 0) {
689 output->paths = sm750_panel;
690 crtc->channel = sm750_primary;
691 crtc->oScreen = 0;
692 crtc->vScreen = sm750_dev->pvMem;
693 } else {
694 output->paths = sm750_crt;
695 crtc->channel = sm750_secondary;
696 /* not consider of padding stuffs for oScreen,need fix */
697 crtc->oScreen = (sm750_dev->vidmem_size >> 1);
698 crtc->vScreen = sm750_dev->pvMem + crtc->oScreen;
699 }
700 break;
701 case sm750_dual_swap:
702 if (par->index == 0) {
703 output->paths = sm750_panel;
704 crtc->channel = sm750_secondary;
705 crtc->oScreen = 0;
706 crtc->vScreen = sm750_dev->pvMem;
707 } else {
708 output->paths = sm750_crt;
709 crtc->channel = sm750_primary;
710 /* not consider of padding stuffs for oScreen,need fix */
711 crtc->oScreen = (sm750_dev->vidmem_size >> 1);
712 crtc->vScreen = sm750_dev->pvMem + crtc->oScreen;
713 }
714 break;
715 default:
716 ret = -EINVAL;
717 }
718
719 return ret;
720 }
721
722 static struct fb_ops lynxfb_ops = {
723 .owner = THIS_MODULE,
724 .fb_check_var = lynxfb_ops_check_var,
725 .fb_set_par = lynxfb_ops_set_par,
726 .fb_setcolreg = lynxfb_ops_setcolreg,
727 .fb_blank = lynxfb_ops_blank,
728 .fb_fillrect = cfb_fillrect,
729 .fb_imageblit = cfb_imageblit,
730 .fb_copyarea = cfb_copyarea,
731 /* cursor */
732 .fb_cursor = lynxfb_ops_cursor,
733 };
734
735 static int lynxfb_set_fbinfo(struct fb_info *info, int index)
736 {
737 int i;
738 struct lynxfb_par *par;
739 struct sm750_dev *sm750_dev;
740 struct lynxfb_crtc *crtc;
741 struct lynxfb_output *output;
742 struct fb_var_screeninfo *var;
743 struct fb_fix_screeninfo *fix;
744
745 const struct fb_videomode *pdb[] = {
746 lynx750_ext, NULL, vesa_modes,
747 };
748 int cdb[] = {ARRAY_SIZE(lynx750_ext), 0, VESA_MODEDB_SIZE};
749 static const char *mdb_desc[] = {
750 "driver prepared modes",
751 "kernel prepared default modedb",
752 "kernel HELPERS prepared vesa_modes",
753 };
754
755 static const char *fixId[2] = {
756 "sm750_fb1", "sm750_fb2",
757 };
758
759 int ret, line_length;
760
761 ret = 0;
762 par = (struct lynxfb_par *)info->par;
763 sm750_dev = par->dev;
764 crtc = &par->crtc;
765 output = &par->output;
766 var = &info->var;
767 fix = &info->fix;
768
769 /* set index */
770 par->index = index;
771 output->channel = &crtc->channel;
772 sm750fb_set_drv(par);
773 lynxfb_ops.fb_pan_display = lynxfb_ops_pan_display;
774
775 /*
776 * set current cursor variable and proc pointer,
777 * must be set after crtc member initialized
778 */
779 crtc->cursor.offset = crtc->oScreen + crtc->vidmem_size - 1024;
780 crtc->cursor.mmio = sm750_dev->pvReg +
781 0x800f0 + (int)crtc->channel * 0x140;
782
783 pr_info("crtc->cursor.mmio = %p\n", crtc->cursor.mmio);
784 crtc->cursor.maxH = crtc->cursor.maxW = 64;
785 crtc->cursor.size = crtc->cursor.maxH * crtc->cursor.maxW * 2 / 8;
786 crtc->cursor.vstart = sm750_dev->pvMem + crtc->cursor.offset;
787
788 memset_io(crtc->cursor.vstart, 0, crtc->cursor.size);
789 if (!g_hwcursor) {
790 lynxfb_ops.fb_cursor = NULL;
791 hw_cursor_disable(&crtc->cursor);
792 }
793
794 /* set info->fbops, must be set before fb_find_mode */
795 if (!sm750_dev->accel_off) {
796 /* use 2d acceleration */
797 lynxfb_ops.fb_fillrect = lynxfb_ops_fillrect;
798 lynxfb_ops.fb_copyarea = lynxfb_ops_copyarea;
799 lynxfb_ops.fb_imageblit = lynxfb_ops_imageblit;
800 }
801 info->fbops = &lynxfb_ops;
802
803 if (!g_fbmode[index]) {
804 g_fbmode[index] = g_def_fbmode;
805 if (index)
806 g_fbmode[index] = g_fbmode[0];
807 }
808
809 for (i = 0; i < 3; i++) {
810
811 ret = fb_find_mode(var, info, g_fbmode[index],
812 pdb[i], cdb[i], NULL, 8);
813
814 if (ret == 1) {
815 pr_info("success! use specified mode:%s in %s\n",
816 g_fbmode[index],
817 mdb_desc[i]);
818 break;
819 } else if (ret == 2) {
820 pr_warn("use specified mode:%s in %s,with an ignored refresh rate\n",
821 g_fbmode[index],
822 mdb_desc[i]);
823 break;
824 } else if (ret == 3) {
825 pr_warn("wanna use default mode\n");
826 /*break;*/
827 } else if (ret == 4) {
828 pr_warn("fall back to any valid mode\n");
829 } else {
830 pr_warn("ret = %d,fb_find_mode failed,with %s\n",
831 ret,
832 mdb_desc[i]);
833 }
834 }
835
836 /* some member of info->var had been set by fb_find_mode */
837
838 pr_info("Member of info->var is :\n\
839 xres=%d\n\
840 yres=%d\n\
841 xres_virtual=%d\n\
842 yres_virtual=%d\n\
843 xoffset=%d\n\
844 yoffset=%d\n\
845 bits_per_pixel=%d\n \
846 ...\n",
847 var->xres,
848 var->yres,
849 var->xres_virtual,
850 var->yres_virtual,
851 var->xoffset,
852 var->yoffset,
853 var->bits_per_pixel);
854
855 /* set par */
856 par->info = info;
857
858 /* set info */
859 line_length = ALIGN((var->xres_virtual * var->bits_per_pixel / 8),
860 crtc->line_pad);
861
862 info->pseudo_palette = &par->pseudo_palette[0];
863 info->screen_base = crtc->vScreen;
864 pr_debug("screen_base vaddr = %p\n", info->screen_base);
865 info->screen_size = line_length * var->yres_virtual;
866 info->flags = FBINFO_FLAG_DEFAULT | 0;
867
868 /* set info->fix */
869 fix->type = FB_TYPE_PACKED_PIXELS;
870 fix->type_aux = 0;
871 fix->xpanstep = crtc->xpanstep;
872 fix->ypanstep = crtc->ypanstep;
873 fix->ywrapstep = crtc->ywrapstep;
874 fix->accel = FB_ACCEL_SMI;
875
876 strlcpy(fix->id, fixId[index], sizeof(fix->id));
877
878 fix->smem_start = crtc->oScreen + sm750_dev->vidmem_start;
879 pr_info("fix->smem_start = %lx\n", fix->smem_start);
880 /*
881 * according to mmap experiment from user space application,
882 * fix->mmio_len should not larger than virtual size
883 * (xres_virtual x yres_virtual x ByPP)
884 * Below line maybe buggy when user mmap fb dev node and write
885 * data into the bound over virtual size
886 */
887 fix->smem_len = crtc->vidmem_size;
888 pr_info("fix->smem_len = %x\n", fix->smem_len);
889 info->screen_size = fix->smem_len;
890 fix->line_length = line_length;
891 fix->mmio_start = sm750_dev->vidreg_start;
892 pr_info("fix->mmio_start = %lx\n", fix->mmio_start);
893 fix->mmio_len = sm750_dev->vidreg_size;
894 pr_info("fix->mmio_len = %x\n", fix->mmio_len);
895 switch (var->bits_per_pixel) {
896 case 8:
897 fix->visual = FB_VISUAL_PSEUDOCOLOR;
898 break;
899 case 16:
900 case 32:
901 fix->visual = FB_VISUAL_TRUECOLOR;
902 break;
903 }
904
905 /* set var */
906 var->activate = FB_ACTIVATE_NOW;
907 var->accel_flags = 0;
908 var->vmode = FB_VMODE_NONINTERLACED;
909
910 pr_debug("#1 show info->cmap :\nstart=%d,len=%d,red=%p,green=%p,blue=%p,transp=%p\n",
911 info->cmap.start, info->cmap.len,
912 info->cmap.red, info->cmap.green, info->cmap.blue,
913 info->cmap.transp);
914
915 ret = fb_alloc_cmap(&info->cmap, 256, 0);
916 if (ret < 0) {
917 pr_err("Could not allocate memory for cmap.\n");
918 goto exit;
919 }
920
921 pr_debug("#2 show info->cmap :\nstart=%d,len=%d,red=%p,green=%p,blue=%p,transp=%p\n",
922 info->cmap.start, info->cmap.len,
923 info->cmap.red, info->cmap.green, info->cmap.blue,
924 info->cmap.transp);
925
926 exit:
927 lynxfb_ops_check_var(var, info);
928 return ret;
929 }
930
931 /* chip specific g_option configuration routine */
932 static void sm750fb_setup(struct sm750_dev *sm750_dev, char *src)
933 {
934 char *opt;
935 int swap;
936
937 swap = 0;
938
939 sm750_dev->initParm.chip_clk = 0;
940 sm750_dev->initParm.mem_clk = 0;
941 sm750_dev->initParm.master_clk = 0;
942 sm750_dev->initParm.powerMode = 0;
943 sm750_dev->initParm.setAllEngOff = 0;
944 sm750_dev->initParm.resetMemory = 1;
945
946 /* defaultly turn g_hwcursor on for both view */
947 g_hwcursor = 3;
948
949 if (!src || !*src) {
950 pr_warn("no specific g_option.\n");
951 goto NO_PARAM;
952 }
953
954 while ((opt = strsep(&src, ":")) != NULL && *opt != 0) {
955 pr_info("opt=%s\n", opt);
956 pr_info("src=%s\n", src);
957
958 if (!strncmp(opt, "swap", strlen("swap")))
959 swap = 1;
960 else if (!strncmp(opt, "nocrt", strlen("nocrt")))
961 sm750_dev->nocrt = 1;
962 else if (!strncmp(opt, "36bit", strlen("36bit")))
963 sm750_dev->pnltype = sm750_doubleTFT;
964 else if (!strncmp(opt, "18bit", strlen("18bit")))
965 sm750_dev->pnltype = sm750_dualTFT;
966 else if (!strncmp(opt, "24bit", strlen("24bit")))
967 sm750_dev->pnltype = sm750_24TFT;
968 else if (!strncmp(opt, "nohwc0", strlen("nohwc0")))
969 g_hwcursor &= ~0x1;
970 else if (!strncmp(opt, "nohwc1", strlen("nohwc1")))
971 g_hwcursor &= ~0x2;
972 else if (!strncmp(opt, "nohwc", strlen("nohwc")))
973 g_hwcursor = 0;
974 else {
975 if (!g_fbmode[0]) {
976 g_fbmode[0] = opt;
977 pr_info("find fbmode0 : %s\n", g_fbmode[0]);
978 } else if (!g_fbmode[1]) {
979 g_fbmode[1] = opt;
980 pr_info("find fbmode1 : %s\n", g_fbmode[1]);
981 } else {
982 pr_warn("How many view you wann set?\n");
983 }
984 }
985 }
986
987 NO_PARAM:
988 if (sm750_dev->revid != SM750LE_REVISION_ID) {
989 if (sm750_dev->fb_count > 1) {
990 if (swap)
991 sm750_dev->dataflow = sm750_dual_swap;
992 else
993 sm750_dev->dataflow = sm750_dual_normal;
994 } else {
995 if (swap)
996 sm750_dev->dataflow = sm750_simul_sec;
997 else
998 sm750_dev->dataflow = sm750_simul_pri;
999 }
1000 } else {
1001 /* SM750LE only have one crt channel */
1002 sm750_dev->dataflow = sm750_simul_sec;
1003 /* sm750le do not have complex attributes */
1004 sm750_dev->nocrt = 0;
1005 }
1006 }
1007
1008 static void sm750fb_frambuffer_release(struct sm750_dev *sm750_dev)
1009 {
1010 struct fb_info *fb_info;
1011
1012 while (sm750_dev->fb_count) {
1013 fb_info = sm750_dev->fbinfo[sm750_dev->fb_count - 1];
1014 unregister_framebuffer(fb_info);
1015 framebuffer_release(fb_info);
1016 sm750_dev->fb_count--;
1017 }
1018 }
1019
1020 static int sm750fb_frambuffer_alloc(struct sm750_dev *sm750_dev, int fbidx)
1021 {
1022 struct fb_info *fb_info;
1023 struct lynxfb_par *par;
1024 int err;
1025
1026 fb_info = framebuffer_alloc(sizeof(struct lynxfb_par),
1027 &sm750_dev->pdev->dev);
1028 if (!fb_info)
1029 return -ENOMEM;
1030
1031 sm750_dev->fbinfo[fbidx] = fb_info;
1032 par = fb_info->par;
1033 par->dev = sm750_dev;
1034
1035 err = lynxfb_set_fbinfo(fb_info, fbidx);
1036 if (err)
1037 goto release_fb;
1038
1039 err = register_framebuffer(fb_info);
1040 if (err < 0)
1041 goto release_fb;
1042
1043 sm750_dev->fb_count++;
1044
1045 return 0;
1046
1047 release_fb:
1048 framebuffer_release(fb_info);
1049 return err;
1050 }
1051
1052 static int lynxfb_pci_probe(struct pci_dev *pdev,
1053 const struct pci_device_id *ent)
1054 {
1055 struct sm750_dev *sm750_dev = NULL;
1056 int max_fb;
1057 int fbidx;
1058 int err;
1059
1060 /* enable device */
1061 err = pcim_enable_device(pdev);
1062 if (err)
1063 return err;
1064
1065 err = -ENOMEM;
1066 sm750_dev = devm_kzalloc(&pdev->dev, sizeof(*sm750_dev), GFP_KERNEL);
1067 if (!sm750_dev)
1068 return err;
1069
1070 sm750_dev->fbinfo[0] = sm750_dev->fbinfo[1] = NULL;
1071 sm750_dev->devid = pdev->device;
1072 sm750_dev->revid = pdev->revision;
1073 sm750_dev->pdev = pdev;
1074 sm750_dev->mtrr_off = g_nomtrr;
1075 sm750_dev->mtrr.vram = 0;
1076 sm750_dev->accel_off = g_noaccel;
1077 spin_lock_init(&sm750_dev->slock);
1078
1079 if (!sm750_dev->accel_off) {
1080 /*
1081 * hook deInit and 2d routines, notes that below hw_xxx
1082 * routine can work on most of lynx chips
1083 * if some chip need specific function,
1084 * please hook it in smXXX_set_drv routine
1085 */
1086 sm750_dev->accel.de_init = hw_de_init;
1087 sm750_dev->accel.de_fillrect = hw_fillrect;
1088 sm750_dev->accel.de_copyarea = hw_copyarea;
1089 sm750_dev->accel.de_imageblit = hw_imageblit;
1090 }
1091
1092 /* call chip specific setup routine */
1093 sm750fb_setup(sm750_dev, g_settings);
1094
1095 /* call chip specific mmap routine */
1096 err = hw_sm750_map(sm750_dev, pdev);
1097 if (err)
1098 return err;
1099
1100 if (!sm750_dev->mtrr_off)
1101 sm750_dev->mtrr.vram = arch_phys_wc_add(sm750_dev->vidmem_start,
1102 sm750_dev->vidmem_size);
1103
1104 memset_io(sm750_dev->pvMem, 0, sm750_dev->vidmem_size);
1105
1106 pci_set_drvdata(pdev, sm750_dev);
1107
1108 /* call chipInit routine */
1109 hw_sm750_inithw(sm750_dev, pdev);
1110
1111 /* allocate frame buffer info structures according to g_dualview */
1112 max_fb = g_dualview ? 2 : 1;
1113 for (fbidx = 0; fbidx < max_fb; fbidx++) {
1114 err = sm750fb_frambuffer_alloc(sm750_dev, fbidx);
1115 if (err)
1116 goto release_fb;
1117 }
1118
1119 return 0;
1120
1121 release_fb:
1122 sm750fb_frambuffer_release(sm750_dev);
1123 return err;
1124 }
1125
1126 static void lynxfb_pci_remove(struct pci_dev *pdev)
1127 {
1128 struct sm750_dev *sm750_dev;
1129
1130 sm750_dev = pci_get_drvdata(pdev);
1131
1132 sm750fb_frambuffer_release(sm750_dev);
1133 arch_phys_wc_del(sm750_dev->mtrr.vram);
1134
1135 iounmap(sm750_dev->pvReg);
1136 iounmap(sm750_dev->pvMem);
1137 kfree(g_settings);
1138 }
1139
1140 static int __init lynxfb_setup(char *options)
1141 {
1142 int len;
1143 char *opt, *tmp;
1144
1145 if (!options || !*options) {
1146 pr_warn("no options.\n");
1147 return 0;
1148 }
1149
1150 pr_info("options:%s\n", options);
1151
1152 len = strlen(options) + 1;
1153 g_settings = kzalloc(len, GFP_KERNEL);
1154 if (!g_settings)
1155 return -ENOMEM;
1156
1157 tmp = g_settings;
1158
1159 /*
1160 * Notes:
1161 * char * strsep(char **s,const char * ct);
1162 * @s: the string to be searched
1163 * @ct :the characters to search for
1164 *
1165 * strsep() updates @options to pointer after the first found token
1166 * it also returns the pointer ahead the token.
1167 */
1168 while ((opt = strsep(&options, ":")) != NULL) {
1169 /* options that mean for any lynx chips are configured here */
1170 if (!strncmp(opt, "noaccel", strlen("noaccel")))
1171 g_noaccel = 1;
1172 else if (!strncmp(opt, "nomtrr", strlen("nomtrr")))
1173 g_nomtrr = 1;
1174 else if (!strncmp(opt, "dual", strlen("dual")))
1175 g_dualview = 1;
1176 else {
1177 strcat(tmp, opt);
1178 tmp += strlen(opt);
1179 if (options != NULL)
1180 *tmp++ = ':';
1181 else
1182 *tmp++ = 0;
1183 }
1184 }
1185
1186 /* misc g_settings are transport to chip specific routines */
1187 pr_info("parameter left for chip specific analysis:%s\n", g_settings);
1188 return 0;
1189 }
1190
1191 static struct pci_device_id smi_pci_table[] = {
1192 { PCI_DEVICE(0x126f, 0x0750), },
1193 {0,}
1194 };
1195
1196 MODULE_DEVICE_TABLE(pci, smi_pci_table);
1197
1198 static struct pci_driver lynxfb_driver = {
1199 .name = "sm750fb",
1200 .id_table = smi_pci_table,
1201 .probe = lynxfb_pci_probe,
1202 .remove = lynxfb_pci_remove,
1203 #ifdef CONFIG_PM
1204 .suspend = lynxfb_suspend,
1205 .resume = lynxfb_resume,
1206 #endif
1207 };
1208
1209 static int __init lynxfb_init(void)
1210 {
1211 char *option;
1212 int ret;
1213
1214 #ifdef MODULE
1215 option = g_option;
1216 #else
1217 if (fb_get_options("sm750fb", &option))
1218 return -ENODEV;
1219 #endif
1220
1221 lynxfb_setup(option);
1222 ret = pci_register_driver(&lynxfb_driver);
1223 return ret;
1224 }
1225 module_init(lynxfb_init);
1226
1227 static void __exit lynxfb_exit(void)
1228 {
1229 pci_unregister_driver(&lynxfb_driver);
1230 }
1231 module_exit(lynxfb_exit);
1232
1233 module_param(g_option, charp, S_IRUGO);
1234
1235 MODULE_PARM_DESC(g_option,
1236 "\n\t\tCommon options:\n"
1237 "\t\tnoaccel:disable 2d capabilities\n"
1238 "\t\tnomtrr:disable MTRR attribute for video memory\n"
1239 "\t\tdualview:dual frame buffer feature enabled\n"
1240 "\t\tnohwc:disable hardware cursor\n"
1241 "\t\tUsual example:\n"
1242 "\t\tinsmod ./sm750fb.ko g_option=\"noaccel,nohwc,1280x1024-8@60\"\n"
1243 );
1244
1245 MODULE_AUTHOR("monk liu <monk.liu@siliconmotion.com>");
1246 MODULE_AUTHOR("Sudip Mukherjee <sudip@vectorindia.org>");
1247 MODULE_DESCRIPTION("Frame buffer driver for SM750 chipset");
1248 MODULE_LICENSE("GPL v2");
CRIS linux kernel tree