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 */ |
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 | w: fbcursor->image.width, |
125 | h: fbcursor->image.height); |
126 | |
127 | if (fbcursor->set & FB_CUR_SETPOS) |
128 | sm750_hw_cursor_setPos(cursor, |
129 | x: fbcursor->image.dx - info->var.xoffset, |
130 | y: 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 | rop: fbcursor->rop, |
150 | data: fbcursor->image.data, |
151 | mask: fbcursor->mask); |
152 | } |
153 | |
154 | if (fbcursor->enable) |
155 | sm750_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.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(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(lock: &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.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(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(lock: &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.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(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(lock: &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 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 | |
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 | |
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 | |
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 | |
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, state: 1); |
423 | info = sm750_dev->fbinfo[1]; |
424 | if (info) |
425 | /* 1 means do suspend */ |
426 | fb_set_suspend(info, state: 1); |
427 | |
428 | console_unlock(); |
429 | return 0; |
430 | } |
431 | |
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, state: 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, state: 0); |
470 | } |
471 | |
472 | pdev->dev.power.power_state.event = PM_EVENT_RESUME; |
473 | |
474 | console_unlock(); |
475 | return 0; |
476 | } |
477 | |
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 | |
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, index: 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(chan: red, bf: &var->red); |
561 | val |= chan_to_field(chan: green, bf: &var->green); |
562 | val |= chan_to_field(chan: blue, bf: &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 | |
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 | |
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 | |
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(cursor: &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, mode_option: g_fbmode[index], |
756 | db: pdb[i], dbsize: cdb[i], NULL, default_bpp: 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(p: fix->id, q: fixId[index], size: 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(cmap: &info->cmap, len: 256, transp: 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 */ |
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 | |
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(info: fb_info); |
954 | sm750_dev->fb_count--; |
955 | } |
956 | } |
957 | |
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(size: sizeof(struct lynxfb_par), |
965 | dev: &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(info: fb_info, index: 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(info: fb_info); |
987 | return err; |
988 | } |
989 | |
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, name: "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(dev: &pdev->dev, size: 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, src: 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(base: sm750_dev->vidmem_start, |
1045 | size: sm750_dev->vidmem_size); |
1046 | |
1047 | memset_io(sm750_dev->pvMem, 0, sm750_dev->vidmem_size); |
1048 | |
1049 | pci_set_drvdata(pdev, data: 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 | |
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(handle: sm750_dev->mtrr.vram); |
1077 | |
1078 | iounmap(addr: sm750_dev->pvReg); |
1079 | iounmap(addr: sm750_dev->pvMem); |
1080 | kfree(objp: g_settings); |
1081 | } |
1082 | |
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(size: 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(p: tmp, q: 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 | |
1151 | static int __init lynxfb_init(void) |
1152 | { |
1153 | char *option; |
1154 | |
1155 | if (fb_modesetting_disabled(drvname: "sm750fb" )) |
1156 | return -ENODEV; |
1157 | |
1158 | #ifdef MODULE |
1159 | option = g_option; |
1160 | #else |
1161 | if (fb_get_options(name: "sm750fb" , option: &option)) |
1162 | return -ENODEV; |
1163 | #endif |
1164 | |
1165 | lynxfb_setup(options: option); |
1166 | return pci_register_driver(&lynxfb_driver); |
1167 | } |
1168 | module_init(lynxfb_init); |
1169 | |
1170 | static void __exit lynxfb_exit(void) |
1171 | { |
1172 | pci_unregister_driver(dev: &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 | |