1 // SPDX-License-Identifier: GPL-2.0
2 #include <linux/aperture.h>
3 #include <linux/kernel.h>
4 #include <linux/module.h>
5 #include <linux/errno.h>
6 #include <linux/string.h>
7 #include <linux/mm.h>
8 #include <linux/slab.h>
9 #include <linux/delay.h>
10 #include <linux/fb.h>
11 #include <linux/ioport.h>
12 #include <linux/init.h>
13 #include <linux/pci.h>
14 #include <linux/mm_types.h>
15 #include <linux/vmalloc.h>
16 #include <linux/pagemap.h>
17 #include <linux/console.h>
18
19 #include "sm750.h"
20 #include "sm750_accel.h"
21 #include "sm750_cursor.h"
22
23 /*
24 * #ifdef __BIG_ENDIAN
25 * ssize_t lynxfb_ops_write(struct fb_info *info, const char __user *buf,
26 * size_t count, loff_t *ppos);
27 * ssize_t lynxfb_ops_read(struct fb_info *info, char __user *buf,
28 * size_t count, loff_t *ppos);
29 * #endif
30 */
31
32 /* common var for all device */
33 static int g_hwcursor = 1;
34 static int g_noaccel;
35 static int g_nomtrr;
36 static const char *g_fbmode[] = {NULL, NULL};
37 static const char *g_def_fbmode = "1024x768-32@60";
38 static char *g_settings;
39 static int g_dualview;
40 static char *g_option;
41
42 static const struct fb_videomode lynx750_ext[] = {
43 /* 1024x600-60 VESA [1.71:1] */
44 {NULL, 60, 1024, 600, 20423, 144, 40, 18, 1, 104, 3,
45 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
46 FB_VMODE_NONINTERLACED},
47
48 /* 1024x600-70 VESA */
49 {NULL, 70, 1024, 600, 17211, 152, 48, 21, 1, 104, 3,
50 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
51 FB_VMODE_NONINTERLACED},
52
53 /* 1024x600-75 VESA */
54 {NULL, 75, 1024, 600, 15822, 160, 56, 23, 1, 104, 3,
55 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
56 FB_VMODE_NONINTERLACED},
57
58 /* 1024x600-85 VESA */
59 {NULL, 85, 1024, 600, 13730, 168, 56, 26, 1, 112, 3,
60 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
61 FB_VMODE_NONINTERLACED},
62
63 /* 720x480 */
64 {NULL, 60, 720, 480, 37427, 88, 16, 13, 1, 72, 3,
65 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
66 FB_VMODE_NONINTERLACED},
67
68 /* 1280x720 [1.78:1] */
69 {NULL, 60, 1280, 720, 13426, 162, 86, 22, 1, 136, 3,
70 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
71 FB_VMODE_NONINTERLACED},
72
73 /* 1280x768@60 */
74 {NULL, 60, 1280, 768, 12579, 192, 64, 20, 3, 128, 7,
75 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
76 FB_VMODE_NONINTERLACED},
77
78 /* 1360 x 768 [1.77083:1] */
79 {NULL, 60, 1360, 768, 11804, 208, 64, 23, 1, 144, 3,
80 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
81 FB_VMODE_NONINTERLACED},
82
83 /* 1368 x 768 [1.78:1] */
84 {NULL, 60, 1368, 768, 11647, 216, 72, 23, 1, 144, 3,
85 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
86 FB_VMODE_NONINTERLACED},
87
88 /* 1440 x 900 [16:10] */
89 {NULL, 60, 1440, 900, 9392, 232, 80, 28, 1, 152, 3,
90 FB_SYNC_VERT_HIGH_ACT,
91 FB_VMODE_NONINTERLACED},
92
93 /* 1440x960 [15:10] */
94 {NULL, 60, 1440, 960, 8733, 240, 88, 30, 1, 152, 3,
95 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
96 FB_VMODE_NONINTERLACED},
97
98 /* 1920x1080 [16:9] */
99 {NULL, 60, 1920, 1080, 6734, 148, 88, 41, 1, 44, 3,
100 FB_SYNC_VERT_HIGH_ACT,
101 FB_VMODE_NONINTERLACED},
102 };
103
104 /* no hardware cursor supported under version 2.6.10, kernel bug */
lynxfb_ops_cursor(struct fb_info * info,struct fb_cursor * fbcursor)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->max_w ||
116 fbcursor->image.height > cursor->max_h ||
117 fbcursor->image.depth > 1) {
118 return -ENXIO;
119 }
120
121 sm750_hw_cursor_disable(cursor);
122 if (fbcursor->set & FB_CUR_SETSIZE)
123 sm750_hw_cursor_setSize(cursor,
124 fbcursor->image.width,
125 fbcursor->image.height);
126
127 if (fbcursor->set & FB_CUR_SETPOS)
128 sm750_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 sm750_hw_cursor_setColor(cursor, fg, bg);
145 }
146
147 if (fbcursor->set & (FB_CUR_SETSHAPE | FB_CUR_SETIMAGE)) {
148 sm750_hw_cursor_setData(cursor,
149 fbcursor->rop,
150 fbcursor->image.data,
151 fbcursor->mask);
152 }
153
154 if (fbcursor->enable)
155 sm750_hw_cursor_enable(cursor);
156
157 return 0;
158 }
159
lynxfb_ops_fillrect(struct fb_info * info,const struct fb_fillrect * region)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.o_screen;
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 * since they fb_count could change during the lifetime of
190 * this lock, we are holding it for all cases.
191 */
192 spin_lock(&sm750_dev->slock);
193
194 sm750_dev->accel.de_fillrect(&sm750_dev->accel,
195 base, pitch, Bpp,
196 region->dx, region->dy,
197 region->width, region->height,
198 color, rop);
199 spin_unlock(&sm750_dev->slock);
200 }
201
lynxfb_ops_copyarea(struct fb_info * info,const struct fb_copyarea * region)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.o_screen;
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 * since they fb_count could change during the lifetime of
224 * this lock, we are holding it for all cases.
225 */
226 spin_lock(&sm750_dev->slock);
227
228 sm750_dev->accel.de_copyarea(&sm750_dev->accel,
229 base, pitch, region->sx, region->sy,
230 base, pitch, Bpp, region->dx, region->dy,
231 region->width, region->height,
232 HW_ROP2_COPY);
233 spin_unlock(&sm750_dev->slock);
234 }
235
lynxfb_ops_imageblit(struct fb_info * info,const struct fb_image * image)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.o_screen;
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 * since they fb_count could change during the lifetime of
273 * this lock, we are holding it for all cases.
274 */
275 spin_lock(&sm750_dev->slock);
276
277 sm750_dev->accel.de_imageblit(&sm750_dev->accel,
278 image->data, image->width >> 3, 0,
279 base, pitch, Bpp,
280 image->dx, image->dy,
281 image->width, image->height,
282 fgcol, bgcol, HW_ROP2_COPY);
283 spin_unlock(&sm750_dev->slock);
284 }
285
lynxfb_ops_pan_display(struct fb_var_screeninfo * var,struct fb_info * info)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
lynxfb_set_visual_mode(struct fb_info * info)300 static inline void lynxfb_set_visual_mode(struct fb_info *info)
301 {
302 switch (info->var.bits_per_pixel) {
303 case 8:
304 info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
305 break;
306 case 16:
307 case 24:
308 case 32:
309 info->fix.visual = FB_VISUAL_TRUECOLOR;
310 break;
311 default:
312 break;
313 }
314 }
315
lynxfb_set_color_offsets(struct fb_info * info)316 static inline int lynxfb_set_color_offsets(struct fb_info *info)
317 {
318 lynxfb_set_visual_mode(info);
319
320 switch (info->var.bits_per_pixel) {
321 case 8:
322 info->var.red.offset = 0;
323 info->var.red.length = 8;
324 info->var.green.offset = 0;
325 info->var.green.length = 8;
326 info->var.blue.offset = 0;
327 info->var.blue.length = 8;
328 info->var.transp.length = 0;
329 info->var.transp.offset = 0;
330 break;
331 case 16:
332 info->var.red.offset = 11;
333 info->var.red.length = 5;
334 info->var.green.offset = 5;
335 info->var.green.length = 6;
336 info->var.blue.offset = 0;
337 info->var.blue.length = 5;
338 info->var.transp.length = 0;
339 info->var.transp.offset = 0;
340 break;
341 case 24:
342 case 32:
343 info->var.red.offset = 16;
344 info->var.red.length = 8;
345 info->var.green.offset = 8;
346 info->var.green.length = 8;
347 info->var.blue.offset = 0;
348 info->var.blue.length = 8;
349 break;
350 default:
351 return -EINVAL;
352 }
353 return 0;
354 }
355
lynxfb_ops_set_par(struct fb_info * info)356 static int lynxfb_ops_set_par(struct fb_info *info)
357 {
358 struct lynxfb_par *par;
359 struct lynxfb_crtc *crtc;
360 struct lynxfb_output *output;
361 struct fb_var_screeninfo *var;
362 struct fb_fix_screeninfo *fix;
363 int ret;
364 unsigned int line_length;
365
366 if (!info)
367 return -EINVAL;
368
369 ret = 0;
370 par = info->par;
371 crtc = &par->crtc;
372 output = &par->output;
373 var = &info->var;
374 fix = &info->fix;
375
376 /* fix structure is not so FIX ... */
377 line_length = var->xres_virtual * var->bits_per_pixel / 8;
378 line_length = ALIGN(line_length, crtc->line_pad);
379 fix->line_length = line_length;
380 pr_info("fix->line_length = %d\n", fix->line_length);
381
382 /*
383 * var->red,green,blue,transp are need to be set by driver
384 * and these data should be set before setcolreg routine
385 */
386
387 ret = lynxfb_set_color_offsets(info);
388
389 var->height = -1;
390 var->width = -1;
391 var->accel_flags = 0;/*FB_ACCELF_TEXT;*/
392
393 if (ret) {
394 pr_err("bpp %d not supported\n", var->bits_per_pixel);
395 return ret;
396 }
397 ret = hw_sm750_crtc_setMode(crtc, var, fix);
398 if (!ret)
399 ret = hw_sm750_output_setMode(output, var, fix);
400 return ret;
401 }
402
chan_to_field(unsigned int chan,struct fb_bitfield * bf)403 static inline unsigned int chan_to_field(unsigned int chan,
404 struct fb_bitfield *bf)
405 {
406 chan &= 0xffff;
407 chan >>= 16 - bf->length;
408 return chan << bf->offset;
409 }
410
lynxfb_suspend(struct device * dev)411 static int __maybe_unused lynxfb_suspend(struct device *dev)
412 {
413 struct fb_info *info;
414 struct sm750_dev *sm750_dev;
415
416 sm750_dev = dev_get_drvdata(dev);
417
418 console_lock();
419 info = sm750_dev->fbinfo[0];
420 if (info)
421 /* 1 means do suspend */
422 fb_set_suspend(info, 1);
423 info = sm750_dev->fbinfo[1];
424 if (info)
425 /* 1 means do suspend */
426 fb_set_suspend(info, 1);
427
428 console_unlock();
429 return 0;
430 }
431
lynxfb_resume(struct device * dev)432 static int __maybe_unused lynxfb_resume(struct device *dev)
433 {
434 struct pci_dev *pdev = to_pci_dev(dev);
435 struct fb_info *info;
436 struct sm750_dev *sm750_dev;
437
438 struct lynxfb_par *par;
439 struct lynxfb_crtc *crtc;
440 struct lynx_cursor *cursor;
441
442 sm750_dev = pci_get_drvdata(pdev);
443
444 console_lock();
445
446 hw_sm750_inithw(sm750_dev, pdev);
447
448 info = sm750_dev->fbinfo[0];
449
450 if (info) {
451 par = info->par;
452 crtc = &par->crtc;
453 cursor = &crtc->cursor;
454 memset_io(cursor->vstart, 0x0, cursor->size);
455 memset_io(crtc->v_screen, 0x0, crtc->vidmem_size);
456 lynxfb_ops_set_par(info);
457 fb_set_suspend(info, 0);
458 }
459
460 info = sm750_dev->fbinfo[1];
461
462 if (info) {
463 par = info->par;
464 crtc = &par->crtc;
465 cursor = &crtc->cursor;
466 memset_io(cursor->vstart, 0x0, cursor->size);
467 memset_io(crtc->v_screen, 0x0, crtc->vidmem_size);
468 lynxfb_ops_set_par(info);
469 fb_set_suspend(info, 0);
470 }
471
472 pdev->dev.power.power_state.event = PM_EVENT_RESUME;
473
474 console_unlock();
475 return 0;
476 }
477
lynxfb_ops_check_var(struct fb_var_screeninfo * var,struct fb_info * info)478 static int lynxfb_ops_check_var(struct fb_var_screeninfo *var,
479 struct fb_info *info)
480 {
481 int ret;
482 struct lynxfb_par *par;
483 struct lynxfb_crtc *crtc;
484 resource_size_t request;
485
486 ret = 0;
487 par = info->par;
488 crtc = &par->crtc;
489
490 pr_debug("check var:%dx%d-%d\n",
491 var->xres,
492 var->yres,
493 var->bits_per_pixel);
494
495 ret = lynxfb_set_color_offsets(info);
496
497 if (ret) {
498 pr_err("bpp %d not supported\n", var->bits_per_pixel);
499 return ret;
500 }
501
502 var->height = -1;
503 var->width = -1;
504 var->accel_flags = 0;/* FB_ACCELF_TEXT; */
505
506 /* check if current fb's video memory big enough to hold the onscreen*/
507 request = var->xres_virtual * (var->bits_per_pixel >> 3);
508 /* defaulty crtc->channel go with par->index */
509
510 request = ALIGN(request, crtc->line_pad);
511 request = request * var->yres_virtual;
512 if (crtc->vidmem_size < request) {
513 pr_err("not enough video memory for mode\n");
514 return -ENOMEM;
515 }
516
517 return hw_sm750_crtc_checkMode(crtc, var);
518 }
519
lynxfb_ops_setcolreg(unsigned int regno,unsigned int red,unsigned int green,unsigned int blue,unsigned int transp,struct fb_info * info)520 static int lynxfb_ops_setcolreg(unsigned int regno,
521 unsigned int red,
522 unsigned int green,
523 unsigned int blue,
524 unsigned int transp,
525 struct fb_info *info)
526 {
527 struct lynxfb_par *par;
528 struct lynxfb_crtc *crtc;
529 struct fb_var_screeninfo *var;
530 int ret;
531
532 par = info->par;
533 crtc = &par->crtc;
534 var = &info->var;
535 ret = 0;
536
537 if (regno > 256) {
538 pr_err("regno = %d\n", regno);
539 return -EINVAL;
540 }
541
542 if (info->var.grayscale)
543 red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8;
544
545 if (var->bits_per_pixel == 8 &&
546 info->fix.visual == FB_VISUAL_PSEUDOCOLOR) {
547 red >>= 8;
548 green >>= 8;
549 blue >>= 8;
550 ret = hw_sm750_setColReg(crtc, regno, red, green, blue);
551 goto exit;
552 }
553
554 if (info->fix.visual == FB_VISUAL_TRUECOLOR && regno < 256) {
555 u32 val;
556
557 if (var->bits_per_pixel == 16 ||
558 var->bits_per_pixel == 32 ||
559 var->bits_per_pixel == 24) {
560 val = chan_to_field(red, &var->red);
561 val |= chan_to_field(green, &var->green);
562 val |= chan_to_field(blue, &var->blue);
563 par->pseudo_palette[regno] = val;
564 goto exit;
565 }
566 }
567
568 ret = -EINVAL;
569
570 exit:
571 return ret;
572 }
573
lynxfb_ops_blank(int blank,struct fb_info * info)574 static int lynxfb_ops_blank(int blank, struct fb_info *info)
575 {
576 struct lynxfb_par *par;
577 struct lynxfb_output *output;
578
579 pr_debug("blank = %d.\n", blank);
580 par = info->par;
581 output = &par->output;
582 return output->proc_setBLANK(output, blank);
583 }
584
sm750fb_set_drv(struct lynxfb_par * par)585 static int sm750fb_set_drv(struct lynxfb_par *par)
586 {
587 int ret;
588 struct sm750_dev *sm750_dev;
589 struct lynxfb_output *output;
590 struct lynxfb_crtc *crtc;
591
592 ret = 0;
593
594 sm750_dev = par->dev;
595 output = &par->output;
596 crtc = &par->crtc;
597
598 crtc->vidmem_size = sm750_dev->vidmem_size;
599 if (sm750_dev->fb_count > 1)
600 crtc->vidmem_size >>= 1;
601
602 /* setup crtc and output member */
603 sm750_dev->hwCursor = g_hwcursor;
604
605 crtc->line_pad = 16;
606 crtc->xpanstep = 8;
607 crtc->ypanstep = 1;
608 crtc->ywrapstep = 0;
609
610 output->proc_setBLANK = (sm750_dev->revid == SM750LE_REVISION_ID) ?
611 hw_sm750le_setBLANK : hw_sm750_setBLANK;
612 /* chip specific phase */
613 sm750_dev->accel.de_wait = (sm750_dev->revid == SM750LE_REVISION_ID) ?
614 hw_sm750le_deWait : hw_sm750_deWait;
615 switch (sm750_dev->dataflow) {
616 case sm750_simul_pri:
617 output->paths = sm750_pnc;
618 crtc->channel = sm750_primary;
619 crtc->o_screen = 0;
620 crtc->v_screen = sm750_dev->pvMem;
621 pr_info("use simul primary mode\n");
622 break;
623 case sm750_simul_sec:
624 output->paths = sm750_pnc;
625 crtc->channel = sm750_secondary;
626 crtc->o_screen = 0;
627 crtc->v_screen = sm750_dev->pvMem;
628 break;
629 case sm750_dual_normal:
630 if (par->index == 0) {
631 output->paths = sm750_panel;
632 crtc->channel = sm750_primary;
633 crtc->o_screen = 0;
634 crtc->v_screen = sm750_dev->pvMem;
635 } else {
636 output->paths = sm750_crt;
637 crtc->channel = sm750_secondary;
638 /* not consider of padding stuffs for o_screen,need fix */
639 crtc->o_screen = sm750_dev->vidmem_size >> 1;
640 crtc->v_screen = sm750_dev->pvMem + crtc->o_screen;
641 }
642 break;
643 case sm750_dual_swap:
644 if (par->index == 0) {
645 output->paths = sm750_panel;
646 crtc->channel = sm750_secondary;
647 crtc->o_screen = 0;
648 crtc->v_screen = sm750_dev->pvMem;
649 } else {
650 output->paths = sm750_crt;
651 crtc->channel = sm750_primary;
652 /* not consider of padding stuffs for o_screen,
653 * need fix
654 */
655 crtc->o_screen = sm750_dev->vidmem_size >> 1;
656 crtc->v_screen = sm750_dev->pvMem + crtc->o_screen;
657 }
658 break;
659 default:
660 ret = -EINVAL;
661 }
662
663 return ret;
664 }
665
666 static struct fb_ops lynxfb_ops = {
667 .owner = THIS_MODULE,
668 .fb_check_var = lynxfb_ops_check_var,
669 .fb_set_par = lynxfb_ops_set_par,
670 .fb_setcolreg = lynxfb_ops_setcolreg,
671 .fb_blank = lynxfb_ops_blank,
672 .fb_fillrect = cfb_fillrect,
673 .fb_imageblit = cfb_imageblit,
674 .fb_copyarea = cfb_copyarea,
675 /* cursor */
676 .fb_cursor = lynxfb_ops_cursor,
677 };
678
lynxfb_set_fbinfo(struct fb_info * info,int index)679 static int lynxfb_set_fbinfo(struct fb_info *info, int index)
680 {
681 int i;
682 struct lynxfb_par *par;
683 struct sm750_dev *sm750_dev;
684 struct lynxfb_crtc *crtc;
685 struct lynxfb_output *output;
686 struct fb_var_screeninfo *var;
687 struct fb_fix_screeninfo *fix;
688
689 const struct fb_videomode *pdb[] = {
690 lynx750_ext, NULL, vesa_modes,
691 };
692 int cdb[] = {ARRAY_SIZE(lynx750_ext), 0, VESA_MODEDB_SIZE};
693 static const char * const mdb_desc[] = {
694 "driver prepared modes",
695 "kernel prepared default modedb",
696 "kernel HELPERS prepared vesa_modes",
697 };
698
699 static const char *fixId[2] = {
700 "sm750_fb1", "sm750_fb2",
701 };
702
703 int ret, line_length;
704
705 ret = 0;
706 par = (struct lynxfb_par *)info->par;
707 sm750_dev = par->dev;
708 crtc = &par->crtc;
709 output = &par->output;
710 var = &info->var;
711 fix = &info->fix;
712
713 /* set index */
714 par->index = index;
715 output->channel = &crtc->channel;
716 sm750fb_set_drv(par);
717 lynxfb_ops.fb_pan_display = lynxfb_ops_pan_display;
718
719 /*
720 * set current cursor variable and proc pointer,
721 * must be set after crtc member initialized
722 */
723 crtc->cursor.offset = crtc->o_screen + crtc->vidmem_size - 1024;
724 crtc->cursor.mmio = sm750_dev->pvReg +
725 0x800f0 + (int)crtc->channel * 0x140;
726
727 pr_info("crtc->cursor.mmio = %p\n", crtc->cursor.mmio);
728 crtc->cursor.max_h = 64;
729 crtc->cursor.max_w = 64;
730 crtc->cursor.size = crtc->cursor.max_h * crtc->cursor.max_w * 2 / 8;
731 crtc->cursor.vstart = sm750_dev->pvMem + crtc->cursor.offset;
732
733 memset_io(crtc->cursor.vstart, 0, crtc->cursor.size);
734 if (!g_hwcursor) {
735 lynxfb_ops.fb_cursor = NULL;
736 sm750_hw_cursor_disable(&crtc->cursor);
737 }
738
739 /* set info->fbops, must be set before fb_find_mode */
740 if (!sm750_dev->accel_off) {
741 /* use 2d acceleration */
742 lynxfb_ops.fb_fillrect = lynxfb_ops_fillrect;
743 lynxfb_ops.fb_copyarea = lynxfb_ops_copyarea;
744 lynxfb_ops.fb_imageblit = lynxfb_ops_imageblit;
745 }
746 info->fbops = &lynxfb_ops;
747
748 if (!g_fbmode[index]) {
749 g_fbmode[index] = g_def_fbmode;
750 if (index)
751 g_fbmode[index] = g_fbmode[0];
752 }
753
754 for (i = 0; i < 3; i++) {
755 ret = fb_find_mode(var, info, g_fbmode[index],
756 pdb[i], cdb[i], NULL, 8);
757
758 if (ret == 1) {
759 pr_info("success! use specified mode:%s in %s\n",
760 g_fbmode[index],
761 mdb_desc[i]);
762 break;
763 } else if (ret == 2) {
764 pr_warn("use specified mode:%s in %s,with an ignored refresh rate\n",
765 g_fbmode[index],
766 mdb_desc[i]);
767 break;
768 } else if (ret == 3) {
769 pr_warn("wanna use default mode\n");
770 /*break;*/
771 } else if (ret == 4) {
772 pr_warn("fall back to any valid mode\n");
773 } else {
774 pr_warn("ret = %d,fb_find_mode failed,with %s\n",
775 ret,
776 mdb_desc[i]);
777 }
778 }
779
780 /* some member of info->var had been set by fb_find_mode */
781
782 pr_info("Member of info->var is :\n"
783 "xres=%d\n"
784 "yres=%d\n"
785 "xres_virtual=%d\n"
786 "yres_virtual=%d\n"
787 "xoffset=%d\n"
788 "yoffset=%d\n"
789 "bits_per_pixel=%d\n"
790 " ...\n",
791 var->xres,
792 var->yres,
793 var->xres_virtual,
794 var->yres_virtual,
795 var->xoffset,
796 var->yoffset,
797 var->bits_per_pixel);
798
799 /* set par */
800 par->info = info;
801
802 /* set info */
803 line_length = ALIGN((var->xres_virtual * var->bits_per_pixel / 8),
804 crtc->line_pad);
805
806 info->pseudo_palette = &par->pseudo_palette[0];
807 info->screen_base = crtc->v_screen;
808 pr_debug("screen_base vaddr = %p\n", info->screen_base);
809 info->screen_size = line_length * var->yres_virtual;
810
811 /* set info->fix */
812 fix->type = FB_TYPE_PACKED_PIXELS;
813 fix->type_aux = 0;
814 fix->xpanstep = crtc->xpanstep;
815 fix->ypanstep = crtc->ypanstep;
816 fix->ywrapstep = crtc->ywrapstep;
817 fix->accel = FB_ACCEL_SMI;
818
819 strscpy(fix->id, fixId[index], sizeof(fix->id));
820
821 fix->smem_start = crtc->o_screen + sm750_dev->vidmem_start;
822 pr_info("fix->smem_start = %lx\n", fix->smem_start);
823 /*
824 * according to mmap experiment from user space application,
825 * fix->mmio_len should not larger than virtual size
826 * (xres_virtual x yres_virtual x ByPP)
827 * Below line maybe buggy when user mmap fb dev node and write
828 * data into the bound over virtual size
829 */
830 fix->smem_len = crtc->vidmem_size;
831 pr_info("fix->smem_len = %x\n", fix->smem_len);
832 info->screen_size = fix->smem_len;
833 fix->line_length = line_length;
834 fix->mmio_start = sm750_dev->vidreg_start;
835 pr_info("fix->mmio_start = %lx\n", fix->mmio_start);
836 fix->mmio_len = sm750_dev->vidreg_size;
837 pr_info("fix->mmio_len = %x\n", fix->mmio_len);
838
839 lynxfb_set_visual_mode(info);
840
841 /* set var */
842 var->activate = FB_ACTIVATE_NOW;
843 var->accel_flags = 0;
844 var->vmode = FB_VMODE_NONINTERLACED;
845
846 pr_debug("#1 show info->cmap :\nstart=%d,len=%d,red=%p,green=%p,blue=%p,transp=%p\n",
847 info->cmap.start, info->cmap.len,
848 info->cmap.red, info->cmap.green, info->cmap.blue,
849 info->cmap.transp);
850
851 ret = fb_alloc_cmap(&info->cmap, 256, 0);
852 if (ret < 0) {
853 pr_err("Could not allocate memory for cmap.\n");
854 goto exit;
855 }
856
857 pr_debug("#2 show info->cmap :\nstart=%d,len=%d,red=%p,green=%p,blue=%p,transp=%p\n",
858 info->cmap.start, info->cmap.len,
859 info->cmap.red, info->cmap.green, info->cmap.blue,
860 info->cmap.transp);
861
862 exit:
863 lynxfb_ops_check_var(var, info);
864 return ret;
865 }
866
867 /* chip specific g_option configuration routine */
sm750fb_setup(struct sm750_dev * sm750_dev,char * src)868 static void sm750fb_setup(struct sm750_dev *sm750_dev, char *src)
869 {
870 char *opt;
871 int swap;
872
873 swap = 0;
874
875 sm750_dev->initParm.chip_clk = 0;
876 sm750_dev->initParm.mem_clk = 0;
877 sm750_dev->initParm.master_clk = 0;
878 sm750_dev->initParm.powerMode = 0;
879 sm750_dev->initParm.setAllEngOff = 0;
880 sm750_dev->initParm.resetMemory = 1;
881
882 /* defaultly turn g_hwcursor on for both view */
883 g_hwcursor = 3;
884
885 if (!src || !*src) {
886 dev_warn(&sm750_dev->pdev->dev, "no specific g_option.\n");
887 goto NO_PARAM;
888 }
889
890 while ((opt = strsep(&src, ":")) != NULL && *opt != 0) {
891 dev_info(&sm750_dev->pdev->dev, "opt=%s\n", opt);
892 dev_info(&sm750_dev->pdev->dev, "src=%s\n", src);
893
894 if (!strncmp(opt, "swap", strlen("swap"))) {
895 swap = 1;
896 } else if (!strncmp(opt, "nocrt", strlen("nocrt"))) {
897 sm750_dev->nocrt = 1;
898 } else if (!strncmp(opt, "36bit", strlen("36bit"))) {
899 sm750_dev->pnltype = sm750_doubleTFT;
900 } else if (!strncmp(opt, "18bit", strlen("18bit"))) {
901 sm750_dev->pnltype = sm750_dualTFT;
902 } else if (!strncmp(opt, "24bit", strlen("24bit"))) {
903 sm750_dev->pnltype = sm750_24TFT;
904 } else if (!strncmp(opt, "nohwc0", strlen("nohwc0"))) {
905 g_hwcursor &= ~0x1;
906 } else if (!strncmp(opt, "nohwc1", strlen("nohwc1"))) {
907 g_hwcursor &= ~0x2;
908 } else if (!strncmp(opt, "nohwc", strlen("nohwc"))) {
909 g_hwcursor = 0;
910 } else {
911 if (!g_fbmode[0]) {
912 g_fbmode[0] = opt;
913 dev_info(&sm750_dev->pdev->dev,
914 "find fbmode0 : %s\n", g_fbmode[0]);
915 } else if (!g_fbmode[1]) {
916 g_fbmode[1] = opt;
917 dev_info(&sm750_dev->pdev->dev,
918 "find fbmode1 : %s\n", g_fbmode[1]);
919 } else {
920 dev_warn(&sm750_dev->pdev->dev, "How many view you wann set?\n");
921 }
922 }
923 }
924
925 NO_PARAM:
926 if (sm750_dev->revid != SM750LE_REVISION_ID) {
927 if (sm750_dev->fb_count > 1) {
928 if (swap)
929 sm750_dev->dataflow = sm750_dual_swap;
930 else
931 sm750_dev->dataflow = sm750_dual_normal;
932 } else {
933 if (swap)
934 sm750_dev->dataflow = sm750_simul_sec;
935 else
936 sm750_dev->dataflow = sm750_simul_pri;
937 }
938 } else {
939 /* SM750LE only have one crt channel */
940 sm750_dev->dataflow = sm750_simul_sec;
941 /* sm750le do not have complex attributes */
942 sm750_dev->nocrt = 0;
943 }
944 }
945
sm750fb_framebuffer_release(struct sm750_dev * sm750_dev)946 static void sm750fb_framebuffer_release(struct sm750_dev *sm750_dev)
947 {
948 struct fb_info *fb_info;
949
950 while (sm750_dev->fb_count) {
951 fb_info = sm750_dev->fbinfo[sm750_dev->fb_count - 1];
952 unregister_framebuffer(fb_info);
953 framebuffer_release(fb_info);
954 sm750_dev->fb_count--;
955 }
956 }
957
sm750fb_framebuffer_alloc(struct sm750_dev * sm750_dev,int fbidx)958 static int sm750fb_framebuffer_alloc(struct sm750_dev *sm750_dev, int fbidx)
959 {
960 struct fb_info *fb_info;
961 struct lynxfb_par *par;
962 int err;
963
964 fb_info = framebuffer_alloc(sizeof(struct lynxfb_par),
965 &sm750_dev->pdev->dev);
966 if (!fb_info)
967 return -ENOMEM;
968
969 sm750_dev->fbinfo[fbidx] = fb_info;
970 par = fb_info->par;
971 par->dev = sm750_dev;
972
973 err = lynxfb_set_fbinfo(fb_info, fbidx);
974 if (err)
975 goto release_fb;
976
977 err = register_framebuffer(fb_info);
978 if (err < 0)
979 goto release_fb;
980
981 sm750_dev->fb_count++;
982
983 return 0;
984
985 release_fb:
986 framebuffer_release(fb_info);
987 return err;
988 }
989
lynxfb_pci_probe(struct pci_dev * pdev,const struct pci_device_id * ent)990 static int lynxfb_pci_probe(struct pci_dev *pdev,
991 const struct pci_device_id *ent)
992 {
993 struct sm750_dev *sm750_dev = NULL;
994 int max_fb;
995 int fbidx;
996 int err;
997
998 err = aperture_remove_conflicting_pci_devices(pdev, "sm750_fb1");
999 if (err)
1000 return err;
1001
1002 /* enable device */
1003 err = pcim_enable_device(pdev);
1004 if (err)
1005 return err;
1006
1007 err = -ENOMEM;
1008 sm750_dev = devm_kzalloc(&pdev->dev, sizeof(*sm750_dev), GFP_KERNEL);
1009 if (!sm750_dev)
1010 return err;
1011
1012 sm750_dev->fbinfo[0] = NULL;
1013 sm750_dev->fbinfo[1] = NULL;
1014 sm750_dev->devid = pdev->device;
1015 sm750_dev->revid = pdev->revision;
1016 sm750_dev->pdev = pdev;
1017 sm750_dev->mtrr_off = g_nomtrr;
1018 sm750_dev->mtrr.vram = 0;
1019 sm750_dev->accel_off = g_noaccel;
1020 spin_lock_init(&sm750_dev->slock);
1021
1022 if (!sm750_dev->accel_off) {
1023 /*
1024 * hook deInit and 2d routines, notes that below hw_xxx
1025 * routine can work on most of lynx chips
1026 * if some chip need specific function,
1027 * please hook it in smXXX_set_drv routine
1028 */
1029 sm750_dev->accel.de_init = sm750_hw_de_init;
1030 sm750_dev->accel.de_fillrect = sm750_hw_fillrect;
1031 sm750_dev->accel.de_copyarea = sm750_hw_copyarea;
1032 sm750_dev->accel.de_imageblit = sm750_hw_imageblit;
1033 }
1034
1035 /* call chip specific setup routine */
1036 sm750fb_setup(sm750_dev, g_settings);
1037
1038 /* call chip specific mmap routine */
1039 err = hw_sm750_map(sm750_dev, pdev);
1040 if (err)
1041 return err;
1042
1043 if (!sm750_dev->mtrr_off)
1044 sm750_dev->mtrr.vram = arch_phys_wc_add(sm750_dev->vidmem_start,
1045 sm750_dev->vidmem_size);
1046
1047 memset_io(sm750_dev->pvMem, 0, sm750_dev->vidmem_size);
1048
1049 pci_set_drvdata(pdev, sm750_dev);
1050
1051 /* call chipInit routine */
1052 hw_sm750_inithw(sm750_dev, pdev);
1053
1054 /* allocate frame buffer info structures according to g_dualview */
1055 max_fb = g_dualview ? 2 : 1;
1056 for (fbidx = 0; fbidx < max_fb; fbidx++) {
1057 err = sm750fb_framebuffer_alloc(sm750_dev, fbidx);
1058 if (err)
1059 goto release_fb;
1060 }
1061
1062 return 0;
1063
1064 release_fb:
1065 sm750fb_framebuffer_release(sm750_dev);
1066 return err;
1067 }
1068
lynxfb_pci_remove(struct pci_dev * pdev)1069 static void lynxfb_pci_remove(struct pci_dev *pdev)
1070 {
1071 struct sm750_dev *sm750_dev;
1072
1073 sm750_dev = pci_get_drvdata(pdev);
1074
1075 sm750fb_framebuffer_release(sm750_dev);
1076 arch_phys_wc_del(sm750_dev->mtrr.vram);
1077
1078 iounmap(sm750_dev->pvReg);
1079 iounmap(sm750_dev->pvMem);
1080 kfree(g_settings);
1081 }
1082
lynxfb_setup(char * options)1083 static int __init lynxfb_setup(char *options)
1084 {
1085 int len;
1086 char *opt, *tmp;
1087
1088 if (!options || !*options) {
1089 pr_warn("no options.\n");
1090 return 0;
1091 }
1092
1093 pr_info("options:%s\n", options);
1094
1095 len = strlen(options) + 1;
1096 g_settings = kzalloc(len, GFP_KERNEL);
1097 if (!g_settings)
1098 return -ENOMEM;
1099
1100 tmp = g_settings;
1101
1102 /*
1103 * Notes:
1104 * char * strsep(char **s,const char * ct);
1105 * @s: the string to be searched
1106 * @ct :the characters to search for
1107 *
1108 * strsep() updates @options to pointer after the first found token
1109 * it also returns the pointer ahead the token.
1110 */
1111 while ((opt = strsep(&options, ":")) != NULL) {
1112 /* options that mean for any lynx chips are configured here */
1113 if (!strncmp(opt, "noaccel", strlen("noaccel"))) {
1114 g_noaccel = 1;
1115 } else if (!strncmp(opt, "nomtrr", strlen("nomtrr"))) {
1116 g_nomtrr = 1;
1117 } else if (!strncmp(opt, "dual", strlen("dual"))) {
1118 g_dualview = 1;
1119 } else {
1120 strcat(tmp, opt);
1121 tmp += strlen(opt);
1122 if (options)
1123 *tmp++ = ':';
1124 else
1125 *tmp++ = 0;
1126 }
1127 }
1128
1129 /* misc g_settings are transport to chip specific routines */
1130 pr_info("parameter left for chip specific analysis:%s\n", g_settings);
1131 return 0;
1132 }
1133
1134 static const struct pci_device_id smi_pci_table[] = {
1135 { PCI_DEVICE(0x126f, 0x0750), },
1136 {0,}
1137 };
1138
1139 MODULE_DEVICE_TABLE(pci, smi_pci_table);
1140
1141 static SIMPLE_DEV_PM_OPS(lynxfb_pm_ops, lynxfb_suspend, lynxfb_resume);
1142
1143 static struct pci_driver lynxfb_driver = {
1144 .name = "sm750fb",
1145 .id_table = smi_pci_table,
1146 .probe = lynxfb_pci_probe,
1147 .remove = lynxfb_pci_remove,
1148 .driver.pm = &lynxfb_pm_ops,
1149 };
1150
lynxfb_init(void)1151 static int __init lynxfb_init(void)
1152 {
1153 char *option;
1154
1155 if (fb_modesetting_disabled("sm750fb"))
1156 return -ENODEV;
1157
1158 #ifdef MODULE
1159 option = g_option;
1160 #else
1161 if (fb_get_options("sm750fb", &option))
1162 return -ENODEV;
1163 #endif
1164
1165 lynxfb_setup(option);
1166 return pci_register_driver(&lynxfb_driver);
1167 }
1168 module_init(lynxfb_init);
1169
lynxfb_exit(void)1170 static void __exit lynxfb_exit(void)
1171 {
1172 pci_unregister_driver(&lynxfb_driver);
1173 }
1174 module_exit(lynxfb_exit);
1175
1176 module_param(g_option, charp, 0444);
1177
1178 MODULE_PARM_DESC(g_option,
1179 "\n\t\tCommon options:\n"
1180 "\t\tnoaccel:disable 2d capabilities\n"
1181 "\t\tnomtrr:disable MTRR attribute for video memory\n"
1182 "\t\tdualview:dual frame buffer feature enabled\n"
1183 "\t\tnohwc:disable hardware cursor\n"
1184 "\t\tUsual example:\n"
1185 "\t\tinsmod ./sm750fb.ko g_option=\"noaccel,nohwc,1280x1024-8@60\"\n"
1186 );
1187
1188 MODULE_AUTHOR("monk liu <monk.liu@siliconmotion.com>");
1189 MODULE_AUTHOR("Sudip Mukherjee <sudip@vectorindia.org>");
1190 MODULE_DESCRIPTION("Frame buffer driver for SM750 chipset");
1191 MODULE_LICENSE("Dual BSD/GPL");
1192