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b39a982d TV |
1 | /* |
2 | * linux/drivers/video/omap2/omapfb-main.c | |
3 | * | |
4 | * Copyright (C) 2008 Nokia Corporation | |
5 | * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> | |
6 | * | |
7 | * Some code and ideas taken from drivers/video/omap/ driver | |
8 | * by Imre Deak. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify it | |
11 | * under the terms of the GNU General Public License version 2 as published by | |
12 | * the Free Software Foundation. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
15 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
16 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
17 | * more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License along with | |
20 | * this program. If not, see <http://www.gnu.org/licenses/>. | |
21 | */ | |
22 | ||
23 | #include <linux/module.h> | |
24 | #include <linux/delay.h> | |
25 | #include <linux/fb.h> | |
26 | #include <linux/dma-mapping.h> | |
27 | #include <linux/vmalloc.h> | |
28 | #include <linux/device.h> | |
29 | #include <linux/platform_device.h> | |
30 | #include <linux/omapfb.h> | |
31 | ||
32 | #include <plat/display.h> | |
33 | #include <plat/vram.h> | |
34 | #include <plat/vrfb.h> | |
35 | ||
36 | #include "omapfb.h" | |
37 | ||
38 | #define MODULE_NAME "omapfb" | |
39 | ||
40 | #define OMAPFB_PLANE_XRES_MIN 8 | |
41 | #define OMAPFB_PLANE_YRES_MIN 8 | |
42 | ||
43 | static char *def_mode; | |
44 | static char *def_vram; | |
45 | static int def_vrfb; | |
46 | static int def_rotate; | |
47 | static int def_mirror; | |
48 | ||
49 | #ifdef DEBUG | |
50 | unsigned int omapfb_debug; | |
51 | module_param_named(debug, omapfb_debug, bool, 0644); | |
52 | static unsigned int omapfb_test_pattern; | |
53 | module_param_named(test, omapfb_test_pattern, bool, 0644); | |
54 | #endif | |
55 | ||
56 | static int omapfb_fb_init(struct omapfb2_device *fbdev, struct fb_info *fbi); | |
57 | ||
58 | #ifdef DEBUG | |
59 | static void draw_pixel(struct fb_info *fbi, int x, int y, unsigned color) | |
60 | { | |
61 | struct fb_var_screeninfo *var = &fbi->var; | |
62 | struct fb_fix_screeninfo *fix = &fbi->fix; | |
63 | void __iomem *addr = fbi->screen_base; | |
64 | const unsigned bytespp = var->bits_per_pixel >> 3; | |
65 | const unsigned line_len = fix->line_length / bytespp; | |
66 | ||
67 | int r = (color >> 16) & 0xff; | |
68 | int g = (color >> 8) & 0xff; | |
69 | int b = (color >> 0) & 0xff; | |
70 | ||
71 | if (var->bits_per_pixel == 16) { | |
72 | u16 __iomem *p = (u16 __iomem *)addr; | |
73 | p += y * line_len + x; | |
74 | ||
75 | r = r * 32 / 256; | |
76 | g = g * 64 / 256; | |
77 | b = b * 32 / 256; | |
78 | ||
79 | __raw_writew((r << 11) | (g << 5) | (b << 0), p); | |
80 | } else if (var->bits_per_pixel == 24) { | |
81 | u8 __iomem *p = (u8 __iomem *)addr; | |
82 | p += (y * line_len + x) * 3; | |
83 | ||
84 | __raw_writeb(b, p + 0); | |
85 | __raw_writeb(g, p + 1); | |
86 | __raw_writeb(r, p + 2); | |
87 | } else if (var->bits_per_pixel == 32) { | |
88 | u32 __iomem *p = (u32 __iomem *)addr; | |
89 | p += y * line_len + x; | |
90 | __raw_writel(color, p); | |
91 | } | |
92 | } | |
93 | ||
94 | static void fill_fb(struct fb_info *fbi) | |
95 | { | |
96 | struct fb_var_screeninfo *var = &fbi->var; | |
97 | const short w = var->xres_virtual; | |
98 | const short h = var->yres_virtual; | |
99 | void __iomem *addr = fbi->screen_base; | |
100 | int y, x; | |
101 | ||
102 | if (!addr) | |
103 | return; | |
104 | ||
105 | DBG("fill_fb %dx%d, line_len %d bytes\n", w, h, fbi->fix.line_length); | |
106 | ||
107 | for (y = 0; y < h; y++) { | |
108 | for (x = 0; x < w; x++) { | |
109 | if (x < 20 && y < 20) | |
110 | draw_pixel(fbi, x, y, 0xffffff); | |
111 | else if (x < 20 && (y > 20 && y < h - 20)) | |
112 | draw_pixel(fbi, x, y, 0xff); | |
113 | else if (y < 20 && (x > 20 && x < w - 20)) | |
114 | draw_pixel(fbi, x, y, 0xff00); | |
115 | else if (x > w - 20 && (y > 20 && y < h - 20)) | |
116 | draw_pixel(fbi, x, y, 0xff0000); | |
117 | else if (y > h - 20 && (x > 20 && x < w - 20)) | |
118 | draw_pixel(fbi, x, y, 0xffff00); | |
119 | else if (x == 20 || x == w - 20 || | |
120 | y == 20 || y == h - 20) | |
121 | draw_pixel(fbi, x, y, 0xffffff); | |
122 | else if (x == y || w - x == h - y) | |
123 | draw_pixel(fbi, x, y, 0xff00ff); | |
124 | else if (w - x == y || x == h - y) | |
125 | draw_pixel(fbi, x, y, 0x00ffff); | |
126 | else if (x > 20 && y > 20 && x < w - 20 && y < h - 20) { | |
127 | int t = x * 3 / w; | |
128 | unsigned r = 0, g = 0, b = 0; | |
129 | unsigned c; | |
130 | if (var->bits_per_pixel == 16) { | |
131 | if (t == 0) | |
132 | b = (y % 32) * 256 / 32; | |
133 | else if (t == 1) | |
134 | g = (y % 64) * 256 / 64; | |
135 | else if (t == 2) | |
136 | r = (y % 32) * 256 / 32; | |
137 | } else { | |
138 | if (t == 0) | |
139 | b = (y % 256); | |
140 | else if (t == 1) | |
141 | g = (y % 256); | |
142 | else if (t == 2) | |
143 | r = (y % 256); | |
144 | } | |
145 | c = (r << 16) | (g << 8) | (b << 0); | |
146 | draw_pixel(fbi, x, y, c); | |
147 | } else { | |
148 | draw_pixel(fbi, x, y, 0); | |
149 | } | |
150 | } | |
151 | } | |
152 | } | |
153 | #endif | |
154 | ||
155 | static unsigned omapfb_get_vrfb_offset(struct omapfb_info *ofbi, int rot) | |
156 | { | |
157 | struct vrfb *vrfb = &ofbi->region.vrfb; | |
158 | unsigned offset; | |
159 | ||
160 | switch (rot) { | |
161 | case FB_ROTATE_UR: | |
162 | offset = 0; | |
163 | break; | |
164 | case FB_ROTATE_CW: | |
165 | offset = vrfb->yoffset; | |
166 | break; | |
167 | case FB_ROTATE_UD: | |
168 | offset = vrfb->yoffset * OMAP_VRFB_LINE_LEN + vrfb->xoffset; | |
169 | break; | |
170 | case FB_ROTATE_CCW: | |
171 | offset = vrfb->xoffset * OMAP_VRFB_LINE_LEN; | |
172 | break; | |
173 | default: | |
174 | BUG(); | |
175 | } | |
176 | ||
177 | offset *= vrfb->bytespp; | |
178 | ||
179 | return offset; | |
180 | } | |
181 | ||
182 | static u32 omapfb_get_region_rot_paddr(struct omapfb_info *ofbi, int rot) | |
183 | { | |
184 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { | |
185 | return ofbi->region.vrfb.paddr[rot] | |
186 | + omapfb_get_vrfb_offset(ofbi, rot); | |
187 | } else { | |
188 | return ofbi->region.paddr; | |
189 | } | |
190 | } | |
191 | ||
192 | static u32 omapfb_get_region_paddr(struct omapfb_info *ofbi) | |
193 | { | |
194 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) | |
195 | return ofbi->region.vrfb.paddr[0]; | |
196 | else | |
197 | return ofbi->region.paddr; | |
198 | } | |
199 | ||
200 | static void __iomem *omapfb_get_region_vaddr(struct omapfb_info *ofbi) | |
201 | { | |
202 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) | |
203 | return ofbi->region.vrfb.vaddr[0]; | |
204 | else | |
205 | return ofbi->region.vaddr; | |
206 | } | |
207 | ||
208 | static struct omapfb_colormode omapfb_colormodes[] = { | |
209 | { | |
210 | .dssmode = OMAP_DSS_COLOR_UYVY, | |
211 | .bits_per_pixel = 16, | |
212 | .nonstd = OMAPFB_COLOR_YUV422, | |
213 | }, { | |
214 | .dssmode = OMAP_DSS_COLOR_YUV2, | |
215 | .bits_per_pixel = 16, | |
216 | .nonstd = OMAPFB_COLOR_YUY422, | |
217 | }, { | |
218 | .dssmode = OMAP_DSS_COLOR_ARGB16, | |
219 | .bits_per_pixel = 16, | |
220 | .red = { .length = 4, .offset = 8, .msb_right = 0 }, | |
221 | .green = { .length = 4, .offset = 4, .msb_right = 0 }, | |
222 | .blue = { .length = 4, .offset = 0, .msb_right = 0 }, | |
223 | .transp = { .length = 4, .offset = 12, .msb_right = 0 }, | |
224 | }, { | |
225 | .dssmode = OMAP_DSS_COLOR_RGB16, | |
226 | .bits_per_pixel = 16, | |
227 | .red = { .length = 5, .offset = 11, .msb_right = 0 }, | |
228 | .green = { .length = 6, .offset = 5, .msb_right = 0 }, | |
229 | .blue = { .length = 5, .offset = 0, .msb_right = 0 }, | |
230 | .transp = { .length = 0, .offset = 0, .msb_right = 0 }, | |
231 | }, { | |
232 | .dssmode = OMAP_DSS_COLOR_RGB24P, | |
233 | .bits_per_pixel = 24, | |
234 | .red = { .length = 8, .offset = 16, .msb_right = 0 }, | |
235 | .green = { .length = 8, .offset = 8, .msb_right = 0 }, | |
236 | .blue = { .length = 8, .offset = 0, .msb_right = 0 }, | |
237 | .transp = { .length = 0, .offset = 0, .msb_right = 0 }, | |
238 | }, { | |
239 | .dssmode = OMAP_DSS_COLOR_RGB24U, | |
240 | .bits_per_pixel = 32, | |
241 | .red = { .length = 8, .offset = 16, .msb_right = 0 }, | |
242 | .green = { .length = 8, .offset = 8, .msb_right = 0 }, | |
243 | .blue = { .length = 8, .offset = 0, .msb_right = 0 }, | |
244 | .transp = { .length = 0, .offset = 0, .msb_right = 0 }, | |
245 | }, { | |
246 | .dssmode = OMAP_DSS_COLOR_ARGB32, | |
247 | .bits_per_pixel = 32, | |
248 | .red = { .length = 8, .offset = 16, .msb_right = 0 }, | |
249 | .green = { .length = 8, .offset = 8, .msb_right = 0 }, | |
250 | .blue = { .length = 8, .offset = 0, .msb_right = 0 }, | |
251 | .transp = { .length = 8, .offset = 24, .msb_right = 0 }, | |
252 | }, { | |
253 | .dssmode = OMAP_DSS_COLOR_RGBA32, | |
254 | .bits_per_pixel = 32, | |
255 | .red = { .length = 8, .offset = 24, .msb_right = 0 }, | |
256 | .green = { .length = 8, .offset = 16, .msb_right = 0 }, | |
257 | .blue = { .length = 8, .offset = 8, .msb_right = 0 }, | |
258 | .transp = { .length = 8, .offset = 0, .msb_right = 0 }, | |
259 | }, { | |
260 | .dssmode = OMAP_DSS_COLOR_RGBX32, | |
261 | .bits_per_pixel = 32, | |
262 | .red = { .length = 8, .offset = 24, .msb_right = 0 }, | |
263 | .green = { .length = 8, .offset = 16, .msb_right = 0 }, | |
264 | .blue = { .length = 8, .offset = 8, .msb_right = 0 }, | |
265 | .transp = { .length = 0, .offset = 0, .msb_right = 0 }, | |
266 | }, | |
267 | }; | |
268 | ||
269 | static bool cmp_var_to_colormode(struct fb_var_screeninfo *var, | |
270 | struct omapfb_colormode *color) | |
271 | { | |
272 | bool cmp_component(struct fb_bitfield *f1, struct fb_bitfield *f2) | |
273 | { | |
274 | return f1->length == f2->length && | |
275 | f1->offset == f2->offset && | |
276 | f1->msb_right == f2->msb_right; | |
277 | } | |
278 | ||
279 | if (var->bits_per_pixel == 0 || | |
280 | var->red.length == 0 || | |
281 | var->blue.length == 0 || | |
282 | var->green.length == 0) | |
283 | return 0; | |
284 | ||
285 | return var->bits_per_pixel == color->bits_per_pixel && | |
286 | cmp_component(&var->red, &color->red) && | |
287 | cmp_component(&var->green, &color->green) && | |
288 | cmp_component(&var->blue, &color->blue) && | |
289 | cmp_component(&var->transp, &color->transp); | |
290 | } | |
291 | ||
292 | static void assign_colormode_to_var(struct fb_var_screeninfo *var, | |
293 | struct omapfb_colormode *color) | |
294 | { | |
295 | var->bits_per_pixel = color->bits_per_pixel; | |
296 | var->nonstd = color->nonstd; | |
297 | var->red = color->red; | |
298 | var->green = color->green; | |
299 | var->blue = color->blue; | |
300 | var->transp = color->transp; | |
301 | } | |
302 | ||
303 | static int fb_mode_to_dss_mode(struct fb_var_screeninfo *var, | |
304 | enum omap_color_mode *mode) | |
305 | { | |
306 | enum omap_color_mode dssmode; | |
307 | int i; | |
308 | ||
309 | /* first match with nonstd field */ | |
310 | if (var->nonstd) { | |
311 | for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) { | |
312 | struct omapfb_colormode *m = &omapfb_colormodes[i]; | |
313 | if (var->nonstd == m->nonstd) { | |
314 | assign_colormode_to_var(var, m); | |
315 | *mode = m->dssmode; | |
316 | return 0; | |
317 | } | |
318 | } | |
319 | ||
320 | return -EINVAL; | |
321 | } | |
322 | ||
323 | /* then try exact match of bpp and colors */ | |
324 | for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) { | |
325 | struct omapfb_colormode *m = &omapfb_colormodes[i]; | |
326 | if (cmp_var_to_colormode(var, m)) { | |
327 | assign_colormode_to_var(var, m); | |
328 | *mode = m->dssmode; | |
329 | return 0; | |
330 | } | |
331 | } | |
332 | ||
333 | /* match with bpp if user has not filled color fields | |
334 | * properly */ | |
335 | switch (var->bits_per_pixel) { | |
336 | case 1: | |
337 | dssmode = OMAP_DSS_COLOR_CLUT1; | |
338 | break; | |
339 | case 2: | |
340 | dssmode = OMAP_DSS_COLOR_CLUT2; | |
341 | break; | |
342 | case 4: | |
343 | dssmode = OMAP_DSS_COLOR_CLUT4; | |
344 | break; | |
345 | case 8: | |
346 | dssmode = OMAP_DSS_COLOR_CLUT8; | |
347 | break; | |
348 | case 12: | |
349 | dssmode = OMAP_DSS_COLOR_RGB12U; | |
350 | break; | |
351 | case 16: | |
352 | dssmode = OMAP_DSS_COLOR_RGB16; | |
353 | break; | |
354 | case 24: | |
355 | dssmode = OMAP_DSS_COLOR_RGB24P; | |
356 | break; | |
357 | case 32: | |
358 | dssmode = OMAP_DSS_COLOR_RGB24U; | |
359 | break; | |
360 | default: | |
361 | return -EINVAL; | |
362 | } | |
363 | ||
364 | for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) { | |
365 | struct omapfb_colormode *m = &omapfb_colormodes[i]; | |
366 | if (dssmode == m->dssmode) { | |
367 | assign_colormode_to_var(var, m); | |
368 | *mode = m->dssmode; | |
369 | return 0; | |
370 | } | |
371 | } | |
372 | ||
373 | return -EINVAL; | |
374 | } | |
375 | ||
376 | static int check_fb_res_bounds(struct fb_var_screeninfo *var) | |
377 | { | |
378 | int xres_min = OMAPFB_PLANE_XRES_MIN; | |
379 | int xres_max = 2048; | |
380 | int yres_min = OMAPFB_PLANE_YRES_MIN; | |
381 | int yres_max = 2048; | |
382 | ||
383 | /* XXX: some applications seem to set virtual res to 0. */ | |
384 | if (var->xres_virtual == 0) | |
385 | var->xres_virtual = var->xres; | |
386 | ||
387 | if (var->yres_virtual == 0) | |
388 | var->yres_virtual = var->yres; | |
389 | ||
390 | if (var->xres_virtual < xres_min || var->yres_virtual < yres_min) | |
391 | return -EINVAL; | |
392 | ||
393 | if (var->xres < xres_min) | |
394 | var->xres = xres_min; | |
395 | if (var->yres < yres_min) | |
396 | var->yres = yres_min; | |
397 | if (var->xres > xres_max) | |
398 | var->xres = xres_max; | |
399 | if (var->yres > yres_max) | |
400 | var->yres = yres_max; | |
401 | ||
402 | if (var->xres > var->xres_virtual) | |
403 | var->xres = var->xres_virtual; | |
404 | if (var->yres > var->yres_virtual) | |
405 | var->yres = var->yres_virtual; | |
406 | ||
407 | return 0; | |
408 | } | |
409 | ||
410 | static void shrink_height(unsigned long max_frame_size, | |
411 | struct fb_var_screeninfo *var) | |
412 | { | |
413 | DBG("can't fit FB into memory, reducing y\n"); | |
414 | var->yres_virtual = max_frame_size / | |
415 | (var->xres_virtual * var->bits_per_pixel >> 3); | |
416 | ||
417 | if (var->yres_virtual < OMAPFB_PLANE_YRES_MIN) | |
418 | var->yres_virtual = OMAPFB_PLANE_YRES_MIN; | |
419 | ||
420 | if (var->yres > var->yres_virtual) | |
421 | var->yres = var->yres_virtual; | |
422 | } | |
423 | ||
424 | static void shrink_width(unsigned long max_frame_size, | |
425 | struct fb_var_screeninfo *var) | |
426 | { | |
427 | DBG("can't fit FB into memory, reducing x\n"); | |
428 | var->xres_virtual = max_frame_size / var->yres_virtual / | |
429 | (var->bits_per_pixel >> 3); | |
430 | ||
431 | if (var->xres_virtual < OMAPFB_PLANE_XRES_MIN) | |
432 | var->xres_virtual = OMAPFB_PLANE_XRES_MIN; | |
433 | ||
434 | if (var->xres > var->xres_virtual) | |
435 | var->xres = var->xres_virtual; | |
436 | } | |
437 | ||
438 | static int check_vrfb_fb_size(unsigned long region_size, | |
439 | const struct fb_var_screeninfo *var) | |
440 | { | |
441 | unsigned long min_phys_size = omap_vrfb_min_phys_size(var->xres_virtual, | |
442 | var->yres_virtual, var->bits_per_pixel >> 3); | |
443 | ||
444 | return min_phys_size > region_size ? -EINVAL : 0; | |
445 | } | |
446 | ||
447 | static int check_fb_size(const struct omapfb_info *ofbi, | |
448 | struct fb_var_screeninfo *var) | |
449 | { | |
450 | unsigned long max_frame_size = ofbi->region.size; | |
451 | int bytespp = var->bits_per_pixel >> 3; | |
452 | unsigned long line_size = var->xres_virtual * bytespp; | |
453 | ||
454 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { | |
455 | /* One needs to check for both VRFB and OMAPFB limitations. */ | |
456 | if (check_vrfb_fb_size(max_frame_size, var)) | |
457 | shrink_height(omap_vrfb_max_height( | |
458 | max_frame_size, var->xres_virtual, bytespp) * | |
459 | line_size, var); | |
460 | ||
461 | if (check_vrfb_fb_size(max_frame_size, var)) { | |
462 | DBG("cannot fit FB to memory\n"); | |
463 | return -EINVAL; | |
464 | } | |
465 | ||
466 | return 0; | |
467 | } | |
468 | ||
469 | DBG("max frame size %lu, line size %lu\n", max_frame_size, line_size); | |
470 | ||
471 | if (line_size * var->yres_virtual > max_frame_size) | |
472 | shrink_height(max_frame_size, var); | |
473 | ||
474 | if (line_size * var->yres_virtual > max_frame_size) { | |
475 | shrink_width(max_frame_size, var); | |
476 | line_size = var->xres_virtual * bytespp; | |
477 | } | |
478 | ||
479 | if (line_size * var->yres_virtual > max_frame_size) { | |
480 | DBG("cannot fit FB to memory\n"); | |
481 | return -EINVAL; | |
482 | } | |
483 | ||
484 | return 0; | |
485 | } | |
486 | ||
487 | /* | |
488 | * Consider if VRFB assisted rotation is in use and if the virtual space for | |
489 | * the zero degree view needs to be mapped. The need for mapping also acts as | |
490 | * the trigger for setting up the hardware on the context in question. This | |
491 | * ensures that one does not attempt to access the virtual view before the | |
492 | * hardware is serving the address translations. | |
493 | */ | |
494 | static int setup_vrfb_rotation(struct fb_info *fbi) | |
495 | { | |
496 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
497 | struct omapfb2_mem_region *rg = &ofbi->region; | |
498 | struct vrfb *vrfb = &rg->vrfb; | |
499 | struct fb_var_screeninfo *var = &fbi->var; | |
500 | struct fb_fix_screeninfo *fix = &fbi->fix; | |
501 | unsigned bytespp; | |
502 | bool yuv_mode; | |
503 | enum omap_color_mode mode; | |
504 | int r; | |
505 | bool reconf; | |
506 | ||
507 | if (!rg->size || ofbi->rotation_type != OMAP_DSS_ROT_VRFB) | |
508 | return 0; | |
509 | ||
510 | DBG("setup_vrfb_rotation\n"); | |
511 | ||
512 | r = fb_mode_to_dss_mode(var, &mode); | |
513 | if (r) | |
514 | return r; | |
515 | ||
516 | bytespp = var->bits_per_pixel >> 3; | |
517 | ||
518 | yuv_mode = mode == OMAP_DSS_COLOR_YUV2 || mode == OMAP_DSS_COLOR_UYVY; | |
519 | ||
520 | /* We need to reconfigure VRFB if the resolution changes, if yuv mode | |
521 | * is enabled/disabled, or if bytes per pixel changes */ | |
522 | ||
523 | /* XXX we shouldn't allow this when framebuffer is mmapped */ | |
524 | ||
525 | reconf = false; | |
526 | ||
527 | if (yuv_mode != vrfb->yuv_mode) | |
528 | reconf = true; | |
529 | else if (bytespp != vrfb->bytespp) | |
530 | reconf = true; | |
531 | else if (vrfb->xres != var->xres_virtual || | |
532 | vrfb->yres != var->yres_virtual) | |
533 | reconf = true; | |
534 | ||
535 | if (vrfb->vaddr[0] && reconf) { | |
536 | fbi->screen_base = NULL; | |
537 | fix->smem_start = 0; | |
538 | fix->smem_len = 0; | |
539 | iounmap(vrfb->vaddr[0]); | |
540 | vrfb->vaddr[0] = NULL; | |
541 | DBG("setup_vrfb_rotation: reset fb\n"); | |
542 | } | |
543 | ||
544 | if (vrfb->vaddr[0]) | |
545 | return 0; | |
546 | ||
547 | omap_vrfb_setup(&rg->vrfb, rg->paddr, | |
548 | var->xres_virtual, | |
549 | var->yres_virtual, | |
550 | bytespp, yuv_mode); | |
551 | ||
552 | /* Now one can ioremap the 0 angle view */ | |
553 | r = omap_vrfb_map_angle(vrfb, var->yres_virtual, 0); | |
554 | if (r) | |
555 | return r; | |
556 | ||
557 | /* used by open/write in fbmem.c */ | |
558 | fbi->screen_base = ofbi->region.vrfb.vaddr[0]; | |
559 | ||
560 | fix->smem_start = ofbi->region.vrfb.paddr[0]; | |
561 | ||
562 | switch (var->nonstd) { | |
563 | case OMAPFB_COLOR_YUV422: | |
564 | case OMAPFB_COLOR_YUY422: | |
565 | fix->line_length = | |
566 | (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 2; | |
567 | break; | |
568 | default: | |
569 | fix->line_length = | |
570 | (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 3; | |
571 | break; | |
572 | } | |
573 | ||
574 | fix->smem_len = var->yres_virtual * fix->line_length; | |
575 | ||
576 | return 0; | |
577 | } | |
578 | ||
579 | int dss_mode_to_fb_mode(enum omap_color_mode dssmode, | |
580 | struct fb_var_screeninfo *var) | |
581 | { | |
582 | int i; | |
583 | ||
584 | for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) { | |
585 | struct omapfb_colormode *mode = &omapfb_colormodes[i]; | |
586 | if (dssmode == mode->dssmode) { | |
587 | assign_colormode_to_var(var, mode); | |
588 | return 0; | |
589 | } | |
590 | } | |
591 | return -ENOENT; | |
592 | } | |
593 | ||
594 | void set_fb_fix(struct fb_info *fbi) | |
595 | { | |
596 | struct fb_fix_screeninfo *fix = &fbi->fix; | |
597 | struct fb_var_screeninfo *var = &fbi->var; | |
598 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
599 | struct omapfb2_mem_region *rg = &ofbi->region; | |
600 | ||
601 | DBG("set_fb_fix\n"); | |
602 | ||
603 | /* used by open/write in fbmem.c */ | |
604 | fbi->screen_base = (char __iomem *)omapfb_get_region_vaddr(ofbi); | |
605 | ||
606 | /* used by mmap in fbmem.c */ | |
607 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { | |
608 | switch (var->nonstd) { | |
609 | case OMAPFB_COLOR_YUV422: | |
610 | case OMAPFB_COLOR_YUY422: | |
611 | fix->line_length = | |
612 | (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 2; | |
613 | break; | |
614 | default: | |
615 | fix->line_length = | |
616 | (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 3; | |
617 | break; | |
618 | } | |
619 | ||
620 | fix->smem_len = var->yres_virtual * fix->line_length; | |
621 | } else { | |
622 | fix->line_length = | |
623 | (var->xres_virtual * var->bits_per_pixel) >> 3; | |
624 | fix->smem_len = rg->size; | |
625 | } | |
626 | ||
627 | fix->smem_start = omapfb_get_region_paddr(ofbi); | |
628 | ||
629 | fix->type = FB_TYPE_PACKED_PIXELS; | |
630 | ||
631 | if (var->nonstd) | |
632 | fix->visual = FB_VISUAL_PSEUDOCOLOR; | |
633 | else { | |
634 | switch (var->bits_per_pixel) { | |
635 | case 32: | |
636 | case 24: | |
637 | case 16: | |
638 | case 12: | |
639 | fix->visual = FB_VISUAL_TRUECOLOR; | |
640 | /* 12bpp is stored in 16 bits */ | |
641 | break; | |
642 | case 1: | |
643 | case 2: | |
644 | case 4: | |
645 | case 8: | |
646 | fix->visual = FB_VISUAL_PSEUDOCOLOR; | |
647 | break; | |
648 | } | |
649 | } | |
650 | ||
651 | fix->accel = FB_ACCEL_NONE; | |
652 | ||
653 | fix->xpanstep = 1; | |
654 | fix->ypanstep = 1; | |
655 | } | |
656 | ||
657 | /* check new var and possibly modify it to be ok */ | |
658 | int check_fb_var(struct fb_info *fbi, struct fb_var_screeninfo *var) | |
659 | { | |
660 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
661 | struct omap_dss_device *display = fb2display(fbi); | |
662 | enum omap_color_mode mode = 0; | |
663 | int i; | |
664 | int r; | |
665 | ||
666 | DBG("check_fb_var %d\n", ofbi->id); | |
667 | ||
668 | if (ofbi->region.size == 0) | |
669 | return 0; | |
670 | ||
671 | r = fb_mode_to_dss_mode(var, &mode); | |
672 | if (r) { | |
673 | DBG("cannot convert var to omap dss mode\n"); | |
674 | return r; | |
675 | } | |
676 | ||
677 | for (i = 0; i < ofbi->num_overlays; ++i) { | |
678 | if ((ofbi->overlays[i]->supported_modes & mode) == 0) { | |
679 | DBG("invalid mode\n"); | |
680 | return -EINVAL; | |
681 | } | |
682 | } | |
683 | ||
684 | if (var->rotate < 0 || var->rotate > 3) | |
685 | return -EINVAL; | |
686 | ||
687 | if (check_fb_res_bounds(var)) | |
688 | return -EINVAL; | |
689 | ||
690 | if (check_fb_size(ofbi, var)) | |
691 | return -EINVAL; | |
692 | ||
693 | if (var->xres + var->xoffset > var->xres_virtual) | |
694 | var->xoffset = var->xres_virtual - var->xres; | |
695 | if (var->yres + var->yoffset > var->yres_virtual) | |
696 | var->yoffset = var->yres_virtual - var->yres; | |
697 | ||
698 | DBG("xres = %d, yres = %d, vxres = %d, vyres = %d\n", | |
699 | var->xres, var->yres, | |
700 | var->xres_virtual, var->yres_virtual); | |
701 | ||
702 | var->height = -1; | |
703 | var->width = -1; | |
704 | var->grayscale = 0; | |
705 | ||
706 | if (display && display->get_timings) { | |
707 | struct omap_video_timings timings; | |
708 | display->get_timings(display, &timings); | |
709 | ||
710 | /* pixclock in ps, the rest in pixclock */ | |
711 | var->pixclock = timings.pixel_clock != 0 ? | |
712 | KHZ2PICOS(timings.pixel_clock) : | |
713 | 0; | |
714 | var->left_margin = timings.hfp; | |
715 | var->right_margin = timings.hbp; | |
716 | var->upper_margin = timings.vfp; | |
717 | var->lower_margin = timings.vbp; | |
718 | var->hsync_len = timings.hsw; | |
719 | var->vsync_len = timings.vsw; | |
720 | } else { | |
721 | var->pixclock = 0; | |
722 | var->left_margin = 0; | |
723 | var->right_margin = 0; | |
724 | var->upper_margin = 0; | |
725 | var->lower_margin = 0; | |
726 | var->hsync_len = 0; | |
727 | var->vsync_len = 0; | |
728 | } | |
729 | ||
730 | /* TODO: get these from panel->config */ | |
731 | var->vmode = FB_VMODE_NONINTERLACED; | |
732 | var->sync = 0; | |
733 | ||
734 | return 0; | |
735 | } | |
736 | ||
737 | /* | |
738 | * --------------------------------------------------------------------------- | |
739 | * fbdev framework callbacks | |
740 | * --------------------------------------------------------------------------- | |
741 | */ | |
742 | static int omapfb_open(struct fb_info *fbi, int user) | |
743 | { | |
744 | return 0; | |
745 | } | |
746 | ||
747 | static int omapfb_release(struct fb_info *fbi, int user) | |
748 | { | |
749 | #if 0 | |
750 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
751 | struct omapfb2_device *fbdev = ofbi->fbdev; | |
752 | struct omap_dss_device *display = fb2display(fbi); | |
753 | ||
754 | DBG("Closing fb with plane index %d\n", ofbi->id); | |
755 | ||
756 | omapfb_lock(fbdev); | |
757 | ||
758 | if (display && display->get_update_mode && display->update) { | |
759 | /* XXX this update should be removed, I think. But it's | |
760 | * good for debugging */ | |
761 | if (display->get_update_mode(display) == | |
762 | OMAP_DSS_UPDATE_MANUAL) { | |
763 | u16 w, h; | |
764 | ||
765 | if (display->sync) | |
766 | display->sync(display); | |
767 | ||
768 | display->get_resolution(display, &w, &h); | |
769 | display->update(display, 0, 0, w, h); | |
770 | } | |
771 | } | |
772 | ||
773 | if (display && display->sync) | |
774 | display->sync(display); | |
775 | ||
776 | omapfb_unlock(fbdev); | |
777 | #endif | |
778 | return 0; | |
779 | } | |
780 | ||
781 | static unsigned calc_rotation_offset_dma(struct fb_var_screeninfo *var, | |
782 | struct fb_fix_screeninfo *fix, int rotation) | |
783 | { | |
784 | unsigned offset; | |
785 | ||
786 | offset = var->yoffset * fix->line_length + | |
787 | var->xoffset * (var->bits_per_pixel >> 3); | |
788 | ||
789 | return offset; | |
790 | } | |
791 | ||
792 | static unsigned calc_rotation_offset_vrfb(struct fb_var_screeninfo *var, | |
793 | struct fb_fix_screeninfo *fix, int rotation) | |
794 | { | |
795 | unsigned offset; | |
796 | ||
797 | if (rotation == FB_ROTATE_UD) | |
798 | offset = (var->yres_virtual - var->yres) * | |
799 | fix->line_length; | |
800 | else if (rotation == FB_ROTATE_CW) | |
801 | offset = (var->yres_virtual - var->yres) * | |
802 | (var->bits_per_pixel >> 3); | |
803 | else | |
804 | offset = 0; | |
805 | ||
806 | if (rotation == FB_ROTATE_UR) | |
807 | offset += var->yoffset * fix->line_length + | |
808 | var->xoffset * (var->bits_per_pixel >> 3); | |
809 | else if (rotation == FB_ROTATE_UD) | |
810 | offset -= var->yoffset * fix->line_length + | |
811 | var->xoffset * (var->bits_per_pixel >> 3); | |
812 | else if (rotation == FB_ROTATE_CW) | |
813 | offset -= var->xoffset * fix->line_length + | |
814 | var->yoffset * (var->bits_per_pixel >> 3); | |
815 | else if (rotation == FB_ROTATE_CCW) | |
816 | offset += var->xoffset * fix->line_length + | |
817 | var->yoffset * (var->bits_per_pixel >> 3); | |
818 | ||
819 | return offset; | |
820 | } | |
821 | ||
822 | ||
823 | /* setup overlay according to the fb */ | |
824 | static int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl, | |
825 | u16 posx, u16 posy, u16 outw, u16 outh) | |
826 | { | |
827 | int r = 0; | |
828 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
829 | struct fb_var_screeninfo *var = &fbi->var; | |
830 | struct fb_fix_screeninfo *fix = &fbi->fix; | |
831 | enum omap_color_mode mode = 0; | |
832 | int offset; | |
833 | u32 data_start_p; | |
834 | void __iomem *data_start_v; | |
835 | struct omap_overlay_info info; | |
836 | int xres, yres; | |
837 | int screen_width; | |
838 | int mirror; | |
839 | int rotation = var->rotate; | |
840 | int i; | |
841 | ||
842 | for (i = 0; i < ofbi->num_overlays; i++) { | |
843 | if (ovl != ofbi->overlays[i]) | |
844 | continue; | |
845 | ||
846 | rotation = (rotation + ofbi->rotation[i]) % 4; | |
847 | break; | |
848 | } | |
849 | ||
850 | DBG("setup_overlay %d, posx %d, posy %d, outw %d, outh %d\n", ofbi->id, | |
851 | posx, posy, outw, outh); | |
852 | ||
853 | if (rotation == FB_ROTATE_CW || rotation == FB_ROTATE_CCW) { | |
854 | xres = var->yres; | |
855 | yres = var->xres; | |
856 | } else { | |
857 | xres = var->xres; | |
858 | yres = var->yres; | |
859 | } | |
860 | ||
861 | ||
862 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { | |
863 | data_start_p = omapfb_get_region_rot_paddr(ofbi, rotation); | |
864 | data_start_v = NULL; | |
865 | } else { | |
866 | data_start_p = omapfb_get_region_paddr(ofbi); | |
867 | data_start_v = omapfb_get_region_vaddr(ofbi); | |
868 | } | |
869 | ||
870 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) | |
871 | offset = calc_rotation_offset_vrfb(var, fix, rotation); | |
872 | else | |
873 | offset = calc_rotation_offset_dma(var, fix, rotation); | |
874 | ||
875 | data_start_p += offset; | |
876 | data_start_v += offset; | |
877 | ||
878 | if (offset) | |
879 | DBG("offset %d, %d = %d\n", | |
880 | var->xoffset, var->yoffset, offset); | |
881 | ||
882 | DBG("paddr %x, vaddr %p\n", data_start_p, data_start_v); | |
883 | ||
884 | r = fb_mode_to_dss_mode(var, &mode); | |
885 | if (r) { | |
886 | DBG("fb_mode_to_dss_mode failed"); | |
887 | goto err; | |
888 | } | |
889 | ||
890 | switch (var->nonstd) { | |
891 | case OMAPFB_COLOR_YUV422: | |
892 | case OMAPFB_COLOR_YUY422: | |
893 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { | |
894 | screen_width = fix->line_length | |
895 | / (var->bits_per_pixel >> 2); | |
896 | break; | |
897 | } | |
898 | default: | |
899 | screen_width = fix->line_length / (var->bits_per_pixel >> 3); | |
900 | break; | |
901 | } | |
902 | ||
903 | ovl->get_overlay_info(ovl, &info); | |
904 | ||
905 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) | |
906 | mirror = 0; | |
907 | else | |
908 | mirror = ofbi->mirror; | |
909 | ||
910 | info.paddr = data_start_p; | |
911 | info.vaddr = data_start_v; | |
912 | info.screen_width = screen_width; | |
913 | info.width = xres; | |
914 | info.height = yres; | |
915 | info.color_mode = mode; | |
916 | info.rotation_type = ofbi->rotation_type; | |
917 | info.rotation = rotation; | |
918 | info.mirror = mirror; | |
919 | ||
920 | info.pos_x = posx; | |
921 | info.pos_y = posy; | |
922 | info.out_width = outw; | |
923 | info.out_height = outh; | |
924 | ||
925 | r = ovl->set_overlay_info(ovl, &info); | |
926 | if (r) { | |
927 | DBG("ovl->setup_overlay_info failed\n"); | |
928 | goto err; | |
929 | } | |
930 | ||
931 | return 0; | |
932 | ||
933 | err: | |
934 | DBG("setup_overlay failed\n"); | |
935 | return r; | |
936 | } | |
937 | ||
938 | /* apply var to the overlay */ | |
939 | int omapfb_apply_changes(struct fb_info *fbi, int init) | |
940 | { | |
941 | int r = 0; | |
942 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
943 | struct fb_var_screeninfo *var = &fbi->var; | |
944 | struct omap_overlay *ovl; | |
945 | u16 posx, posy; | |
946 | u16 outw, outh; | |
947 | int i; | |
948 | ||
949 | #ifdef DEBUG | |
950 | if (omapfb_test_pattern) | |
951 | fill_fb(fbi); | |
952 | #endif | |
953 | ||
954 | for (i = 0; i < ofbi->num_overlays; i++) { | |
955 | ovl = ofbi->overlays[i]; | |
956 | ||
957 | DBG("apply_changes, fb %d, ovl %d\n", ofbi->id, ovl->id); | |
958 | ||
959 | if (ofbi->region.size == 0) { | |
960 | /* the fb is not available. disable the overlay */ | |
961 | omapfb_overlay_enable(ovl, 0); | |
962 | if (!init && ovl->manager) | |
963 | ovl->manager->apply(ovl->manager); | |
964 | continue; | |
965 | } | |
966 | ||
967 | if (init || (ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) { | |
968 | int rotation = (var->rotate + ofbi->rotation[i]) % 4; | |
969 | if (rotation == FB_ROTATE_CW || | |
970 | rotation == FB_ROTATE_CCW) { | |
971 | outw = var->yres; | |
972 | outh = var->xres; | |
973 | } else { | |
974 | outw = var->xres; | |
975 | outh = var->yres; | |
976 | } | |
977 | } else { | |
978 | outw = ovl->info.out_width; | |
979 | outh = ovl->info.out_height; | |
980 | } | |
981 | ||
982 | if (init) { | |
983 | posx = 0; | |
984 | posy = 0; | |
985 | } else { | |
986 | posx = ovl->info.pos_x; | |
987 | posy = ovl->info.pos_y; | |
988 | } | |
989 | ||
990 | r = omapfb_setup_overlay(fbi, ovl, posx, posy, outw, outh); | |
991 | if (r) | |
992 | goto err; | |
993 | ||
994 | if (!init && ovl->manager) | |
995 | ovl->manager->apply(ovl->manager); | |
996 | } | |
997 | return 0; | |
998 | err: | |
999 | DBG("apply_changes failed\n"); | |
1000 | return r; | |
1001 | } | |
1002 | ||
1003 | /* checks var and eventually tweaks it to something supported, | |
1004 | * DO NOT MODIFY PAR */ | |
1005 | static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi) | |
1006 | { | |
1007 | int r; | |
1008 | ||
1009 | DBG("check_var(%d)\n", FB2OFB(fbi)->id); | |
1010 | ||
1011 | r = check_fb_var(fbi, var); | |
1012 | ||
1013 | return r; | |
1014 | } | |
1015 | ||
1016 | /* set the video mode according to info->var */ | |
1017 | static int omapfb_set_par(struct fb_info *fbi) | |
1018 | { | |
1019 | int r; | |
1020 | ||
1021 | DBG("set_par(%d)\n", FB2OFB(fbi)->id); | |
1022 | ||
1023 | set_fb_fix(fbi); | |
1024 | ||
1025 | r = setup_vrfb_rotation(fbi); | |
1026 | if (r) | |
1027 | return r; | |
1028 | ||
1029 | r = omapfb_apply_changes(fbi, 0); | |
1030 | ||
1031 | return r; | |
1032 | } | |
1033 | ||
1034 | static int omapfb_pan_display(struct fb_var_screeninfo *var, | |
1035 | struct fb_info *fbi) | |
1036 | { | |
1037 | struct fb_var_screeninfo new_var; | |
1038 | int r; | |
1039 | ||
1040 | DBG("pan_display(%d)\n", FB2OFB(fbi)->id); | |
1041 | ||
1042 | if (var->xoffset == fbi->var.xoffset && | |
1043 | var->yoffset == fbi->var.yoffset) | |
1044 | return 0; | |
1045 | ||
1046 | new_var = fbi->var; | |
1047 | new_var.xoffset = var->xoffset; | |
1048 | new_var.yoffset = var->yoffset; | |
1049 | ||
1050 | fbi->var = new_var; | |
1051 | ||
1052 | r = omapfb_apply_changes(fbi, 0); | |
1053 | ||
1054 | return r; | |
1055 | } | |
1056 | ||
1057 | static void mmap_user_open(struct vm_area_struct *vma) | |
1058 | { | |
1059 | struct omapfb_info *ofbi = (struct omapfb_info *)vma->vm_private_data; | |
1060 | ||
1061 | atomic_inc(&ofbi->map_count); | |
1062 | } | |
1063 | ||
1064 | static void mmap_user_close(struct vm_area_struct *vma) | |
1065 | { | |
1066 | struct omapfb_info *ofbi = (struct omapfb_info *)vma->vm_private_data; | |
1067 | ||
1068 | atomic_dec(&ofbi->map_count); | |
1069 | } | |
1070 | ||
1071 | static struct vm_operations_struct mmap_user_ops = { | |
1072 | .open = mmap_user_open, | |
1073 | .close = mmap_user_close, | |
1074 | }; | |
1075 | ||
1076 | static int omapfb_mmap(struct fb_info *fbi, struct vm_area_struct *vma) | |
1077 | { | |
1078 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
1079 | struct fb_fix_screeninfo *fix = &fbi->fix; | |
1080 | unsigned long off; | |
1081 | unsigned long start; | |
1082 | u32 len; | |
1083 | ||
1084 | if (vma->vm_end - vma->vm_start == 0) | |
1085 | return 0; | |
1086 | if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) | |
1087 | return -EINVAL; | |
1088 | off = vma->vm_pgoff << PAGE_SHIFT; | |
1089 | ||
1090 | start = omapfb_get_region_paddr(ofbi); | |
1091 | len = fix->smem_len; | |
1092 | if (off >= len) | |
1093 | return -EINVAL; | |
1094 | if ((vma->vm_end - vma->vm_start + off) > len) | |
1095 | return -EINVAL; | |
1096 | ||
1097 | off += start; | |
1098 | ||
1099 | DBG("user mmap region start %lx, len %d, off %lx\n", start, len, off); | |
1100 | ||
1101 | vma->vm_pgoff = off >> PAGE_SHIFT; | |
1102 | vma->vm_flags |= VM_IO | VM_RESERVED; | |
1103 | vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); | |
1104 | vma->vm_ops = &mmap_user_ops; | |
1105 | vma->vm_private_data = ofbi; | |
1106 | if (io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT, | |
1107 | vma->vm_end - vma->vm_start, vma->vm_page_prot)) | |
1108 | return -EAGAIN; | |
1109 | /* vm_ops.open won't be called for mmap itself. */ | |
1110 | atomic_inc(&ofbi->map_count); | |
1111 | return 0; | |
1112 | } | |
1113 | ||
1114 | /* Store a single color palette entry into a pseudo palette or the hardware | |
1115 | * palette if one is available. For now we support only 16bpp and thus store | |
1116 | * the entry only to the pseudo palette. | |
1117 | */ | |
1118 | static int _setcolreg(struct fb_info *fbi, u_int regno, u_int red, u_int green, | |
1119 | u_int blue, u_int transp, int update_hw_pal) | |
1120 | { | |
1121 | /*struct omapfb_info *ofbi = FB2OFB(fbi);*/ | |
1122 | /*struct omapfb2_device *fbdev = ofbi->fbdev;*/ | |
1123 | struct fb_var_screeninfo *var = &fbi->var; | |
1124 | int r = 0; | |
1125 | ||
1126 | enum omapfb_color_format mode = OMAPFB_COLOR_RGB24U; /* XXX */ | |
1127 | ||
1128 | /*switch (plane->color_mode) {*/ | |
1129 | switch (mode) { | |
1130 | case OMAPFB_COLOR_YUV422: | |
1131 | case OMAPFB_COLOR_YUV420: | |
1132 | case OMAPFB_COLOR_YUY422: | |
1133 | r = -EINVAL; | |
1134 | break; | |
1135 | case OMAPFB_COLOR_CLUT_8BPP: | |
1136 | case OMAPFB_COLOR_CLUT_4BPP: | |
1137 | case OMAPFB_COLOR_CLUT_2BPP: | |
1138 | case OMAPFB_COLOR_CLUT_1BPP: | |
1139 | /* | |
1140 | if (fbdev->ctrl->setcolreg) | |
1141 | r = fbdev->ctrl->setcolreg(regno, red, green, blue, | |
1142 | transp, update_hw_pal); | |
1143 | */ | |
1144 | /* Fallthrough */ | |
1145 | r = -EINVAL; | |
1146 | break; | |
1147 | case OMAPFB_COLOR_RGB565: | |
1148 | case OMAPFB_COLOR_RGB444: | |
1149 | case OMAPFB_COLOR_RGB24P: | |
1150 | case OMAPFB_COLOR_RGB24U: | |
1151 | if (r != 0) | |
1152 | break; | |
1153 | ||
1154 | if (regno < 0) { | |
1155 | r = -EINVAL; | |
1156 | break; | |
1157 | } | |
1158 | ||
1159 | if (regno < 16) { | |
1160 | u16 pal; | |
1161 | pal = ((red >> (16 - var->red.length)) << | |
1162 | var->red.offset) | | |
1163 | ((green >> (16 - var->green.length)) << | |
1164 | var->green.offset) | | |
1165 | (blue >> (16 - var->blue.length)); | |
1166 | ((u32 *)(fbi->pseudo_palette))[regno] = pal; | |
1167 | } | |
1168 | break; | |
1169 | default: | |
1170 | BUG(); | |
1171 | } | |
1172 | return r; | |
1173 | } | |
1174 | ||
1175 | static int omapfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, | |
1176 | u_int transp, struct fb_info *info) | |
1177 | { | |
1178 | DBG("setcolreg\n"); | |
1179 | ||
1180 | return _setcolreg(info, regno, red, green, blue, transp, 1); | |
1181 | } | |
1182 | ||
1183 | static int omapfb_setcmap(struct fb_cmap *cmap, struct fb_info *info) | |
1184 | { | |
1185 | int count, index, r; | |
1186 | u16 *red, *green, *blue, *transp; | |
1187 | u16 trans = 0xffff; | |
1188 | ||
1189 | DBG("setcmap\n"); | |
1190 | ||
1191 | red = cmap->red; | |
1192 | green = cmap->green; | |
1193 | blue = cmap->blue; | |
1194 | transp = cmap->transp; | |
1195 | index = cmap->start; | |
1196 | ||
1197 | for (count = 0; count < cmap->len; count++) { | |
1198 | if (transp) | |
1199 | trans = *transp++; | |
1200 | r = _setcolreg(info, index++, *red++, *green++, *blue++, trans, | |
1201 | count == cmap->len - 1); | |
1202 | if (r != 0) | |
1203 | return r; | |
1204 | } | |
1205 | ||
1206 | return 0; | |
1207 | } | |
1208 | ||
1209 | static int omapfb_blank(int blank, struct fb_info *fbi) | |
1210 | { | |
1211 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
1212 | struct omapfb2_device *fbdev = ofbi->fbdev; | |
1213 | struct omap_dss_device *display = fb2display(fbi); | |
1214 | int do_update = 0; | |
1215 | int r = 0; | |
1216 | ||
1217 | omapfb_lock(fbdev); | |
1218 | ||
1219 | switch (blank) { | |
1220 | case FB_BLANK_UNBLANK: | |
1221 | if (display->state != OMAP_DSS_DISPLAY_SUSPENDED) | |
1222 | goto exit; | |
1223 | ||
1224 | if (display->resume) | |
1225 | r = display->resume(display); | |
1226 | ||
1227 | if (r == 0 && display->get_update_mode && | |
1228 | display->get_update_mode(display) == | |
1229 | OMAP_DSS_UPDATE_MANUAL) | |
1230 | do_update = 1; | |
1231 | ||
1232 | break; | |
1233 | ||
1234 | case FB_BLANK_NORMAL: | |
1235 | /* FB_BLANK_NORMAL could be implemented. | |
1236 | * Needs DSS additions. */ | |
1237 | case FB_BLANK_VSYNC_SUSPEND: | |
1238 | case FB_BLANK_HSYNC_SUSPEND: | |
1239 | case FB_BLANK_POWERDOWN: | |
1240 | if (display->state != OMAP_DSS_DISPLAY_ACTIVE) | |
1241 | goto exit; | |
1242 | ||
1243 | if (display->suspend) | |
1244 | r = display->suspend(display); | |
1245 | ||
1246 | break; | |
1247 | ||
1248 | default: | |
1249 | r = -EINVAL; | |
1250 | } | |
1251 | ||
1252 | exit: | |
1253 | omapfb_unlock(fbdev); | |
1254 | ||
1255 | if (r == 0 && do_update && display->update) { | |
1256 | u16 w, h; | |
1257 | display->get_resolution(display, &w, &h); | |
1258 | ||
1259 | r = display->update(display, 0, 0, w, h); | |
1260 | } | |
1261 | ||
1262 | return r; | |
1263 | } | |
1264 | ||
1265 | #if 0 | |
1266 | /* XXX fb_read and fb_write are needed for VRFB */ | |
1267 | ssize_t omapfb_write(struct fb_info *info, const char __user *buf, | |
1268 | size_t count, loff_t *ppos) | |
1269 | { | |
1270 | DBG("omapfb_write %d, %lu\n", count, (unsigned long)*ppos); | |
1271 | /* XXX needed for VRFB */ | |
1272 | return count; | |
1273 | } | |
1274 | #endif | |
1275 | ||
1276 | static struct fb_ops omapfb_ops = { | |
1277 | .owner = THIS_MODULE, | |
1278 | .fb_open = omapfb_open, | |
1279 | .fb_release = omapfb_release, | |
1280 | .fb_fillrect = cfb_fillrect, | |
1281 | .fb_copyarea = cfb_copyarea, | |
1282 | .fb_imageblit = cfb_imageblit, | |
1283 | .fb_blank = omapfb_blank, | |
1284 | .fb_ioctl = omapfb_ioctl, | |
1285 | .fb_check_var = omapfb_check_var, | |
1286 | .fb_set_par = omapfb_set_par, | |
1287 | .fb_pan_display = omapfb_pan_display, | |
1288 | .fb_mmap = omapfb_mmap, | |
1289 | .fb_setcolreg = omapfb_setcolreg, | |
1290 | .fb_setcmap = omapfb_setcmap, | |
1291 | /*.fb_write = omapfb_write,*/ | |
1292 | }; | |
1293 | ||
1294 | static void omapfb_free_fbmem(struct fb_info *fbi) | |
1295 | { | |
1296 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
1297 | struct omapfb2_device *fbdev = ofbi->fbdev; | |
1298 | struct omapfb2_mem_region *rg; | |
1299 | ||
1300 | rg = &ofbi->region; | |
1301 | ||
1302 | if (rg->paddr) | |
1303 | if (omap_vram_free(rg->paddr, rg->size)) | |
1304 | dev_err(fbdev->dev, "VRAM FREE failed\n"); | |
1305 | ||
1306 | if (rg->vaddr) | |
1307 | iounmap(rg->vaddr); | |
1308 | ||
1309 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { | |
1310 | /* unmap the 0 angle rotation */ | |
1311 | if (rg->vrfb.vaddr[0]) { | |
1312 | iounmap(rg->vrfb.vaddr[0]); | |
1313 | omap_vrfb_release_ctx(&rg->vrfb); | |
f3a82d11 | 1314 | rg->vrfb.vaddr[0] = NULL; |
b39a982d TV |
1315 | } |
1316 | } | |
1317 | ||
1318 | rg->vaddr = NULL; | |
1319 | rg->paddr = 0; | |
1320 | rg->alloc = 0; | |
1321 | rg->size = 0; | |
1322 | } | |
1323 | ||
1324 | static void clear_fb_info(struct fb_info *fbi) | |
1325 | { | |
1326 | memset(&fbi->var, 0, sizeof(fbi->var)); | |
1327 | memset(&fbi->fix, 0, sizeof(fbi->fix)); | |
1328 | strlcpy(fbi->fix.id, MODULE_NAME, sizeof(fbi->fix.id)); | |
1329 | } | |
1330 | ||
1331 | static int omapfb_free_all_fbmem(struct omapfb2_device *fbdev) | |
1332 | { | |
1333 | int i; | |
1334 | ||
1335 | DBG("free all fbmem\n"); | |
1336 | ||
1337 | for (i = 0; i < fbdev->num_fbs; i++) { | |
1338 | struct fb_info *fbi = fbdev->fbs[i]; | |
1339 | omapfb_free_fbmem(fbi); | |
1340 | clear_fb_info(fbi); | |
1341 | } | |
1342 | ||
1343 | return 0; | |
1344 | } | |
1345 | ||
1346 | static int omapfb_alloc_fbmem(struct fb_info *fbi, unsigned long size, | |
1347 | unsigned long paddr) | |
1348 | { | |
1349 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
1350 | struct omapfb2_device *fbdev = ofbi->fbdev; | |
1351 | struct omapfb2_mem_region *rg; | |
1352 | void __iomem *vaddr; | |
1353 | int r; | |
1354 | ||
1355 | rg = &ofbi->region; | |
1356 | memset(rg, 0, sizeof(*rg)); | |
1357 | ||
1358 | size = PAGE_ALIGN(size); | |
1359 | ||
1360 | if (!paddr) { | |
1361 | DBG("allocating %lu bytes for fb %d\n", size, ofbi->id); | |
1362 | r = omap_vram_alloc(OMAP_VRAM_MEMTYPE_SDRAM, size, &paddr); | |
1363 | } else { | |
1364 | DBG("reserving %lu bytes at %lx for fb %d\n", size, paddr, | |
1365 | ofbi->id); | |
1366 | r = omap_vram_reserve(paddr, size); | |
1367 | } | |
1368 | ||
1369 | if (r) { | |
1370 | dev_err(fbdev->dev, "failed to allocate framebuffer\n"); | |
1371 | return -ENOMEM; | |
1372 | } | |
1373 | ||
1374 | if (ofbi->rotation_type != OMAP_DSS_ROT_VRFB) { | |
1375 | vaddr = ioremap_wc(paddr, size); | |
1376 | ||
1377 | if (!vaddr) { | |
1378 | dev_err(fbdev->dev, "failed to ioremap framebuffer\n"); | |
1379 | omap_vram_free(paddr, size); | |
1380 | return -ENOMEM; | |
1381 | } | |
1382 | ||
1383 | DBG("allocated VRAM paddr %lx, vaddr %p\n", paddr, vaddr); | |
1384 | } else { | |
1385 | r = omap_vrfb_request_ctx(&rg->vrfb); | |
1386 | if (r) { | |
1387 | dev_err(fbdev->dev, "vrfb create ctx failed\n"); | |
1388 | return r; | |
1389 | } | |
1390 | ||
1391 | vaddr = NULL; | |
1392 | } | |
1393 | ||
1394 | rg->paddr = paddr; | |
1395 | rg->vaddr = vaddr; | |
1396 | rg->size = size; | |
1397 | rg->alloc = 1; | |
1398 | ||
1399 | return 0; | |
1400 | } | |
1401 | ||
1402 | /* allocate fbmem using display resolution as reference */ | |
1403 | static int omapfb_alloc_fbmem_display(struct fb_info *fbi, unsigned long size, | |
1404 | unsigned long paddr) | |
1405 | { | |
1406 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
1407 | struct omap_dss_device *display; | |
1408 | int bytespp; | |
1409 | ||
1410 | display = fb2display(fbi); | |
1411 | ||
1412 | if (!display) | |
1413 | return 0; | |
1414 | ||
1415 | switch (display->get_recommended_bpp(display)) { | |
1416 | case 16: | |
1417 | bytespp = 2; | |
1418 | break; | |
1419 | case 24: | |
1420 | bytespp = 4; | |
1421 | break; | |
1422 | default: | |
1423 | bytespp = 4; | |
1424 | break; | |
1425 | } | |
1426 | ||
1427 | if (!size) { | |
1428 | u16 w, h; | |
1429 | ||
1430 | display->get_resolution(display, &w, &h); | |
1431 | ||
1432 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { | |
1433 | size = max(omap_vrfb_min_phys_size(w, h, bytespp), | |
1434 | omap_vrfb_min_phys_size(h, w, bytespp)); | |
1435 | ||
1436 | DBG("adjusting fb mem size for VRFB, %u -> %lu\n", | |
1437 | w * h * bytespp, size); | |
1438 | } else { | |
1439 | size = w * h * bytespp; | |
1440 | } | |
1441 | } | |
1442 | ||
1443 | if (!size) | |
1444 | return 0; | |
1445 | ||
1446 | return omapfb_alloc_fbmem(fbi, size, paddr); | |
1447 | } | |
1448 | ||
1449 | static enum omap_color_mode fb_format_to_dss_mode(enum omapfb_color_format fmt) | |
1450 | { | |
1451 | enum omap_color_mode mode; | |
1452 | ||
1453 | switch (fmt) { | |
1454 | case OMAPFB_COLOR_RGB565: | |
1455 | mode = OMAP_DSS_COLOR_RGB16; | |
1456 | break; | |
1457 | case OMAPFB_COLOR_YUV422: | |
1458 | mode = OMAP_DSS_COLOR_YUV2; | |
1459 | break; | |
1460 | case OMAPFB_COLOR_CLUT_8BPP: | |
1461 | mode = OMAP_DSS_COLOR_CLUT8; | |
1462 | break; | |
1463 | case OMAPFB_COLOR_CLUT_4BPP: | |
1464 | mode = OMAP_DSS_COLOR_CLUT4; | |
1465 | break; | |
1466 | case OMAPFB_COLOR_CLUT_2BPP: | |
1467 | mode = OMAP_DSS_COLOR_CLUT2; | |
1468 | break; | |
1469 | case OMAPFB_COLOR_CLUT_1BPP: | |
1470 | mode = OMAP_DSS_COLOR_CLUT1; | |
1471 | break; | |
1472 | case OMAPFB_COLOR_RGB444: | |
1473 | mode = OMAP_DSS_COLOR_RGB12U; | |
1474 | break; | |
1475 | case OMAPFB_COLOR_YUY422: | |
1476 | mode = OMAP_DSS_COLOR_UYVY; | |
1477 | break; | |
1478 | case OMAPFB_COLOR_ARGB16: | |
1479 | mode = OMAP_DSS_COLOR_ARGB16; | |
1480 | break; | |
1481 | case OMAPFB_COLOR_RGB24U: | |
1482 | mode = OMAP_DSS_COLOR_RGB24U; | |
1483 | break; | |
1484 | case OMAPFB_COLOR_RGB24P: | |
1485 | mode = OMAP_DSS_COLOR_RGB24P; | |
1486 | break; | |
1487 | case OMAPFB_COLOR_ARGB32: | |
1488 | mode = OMAP_DSS_COLOR_ARGB32; | |
1489 | break; | |
1490 | case OMAPFB_COLOR_RGBA32: | |
1491 | mode = OMAP_DSS_COLOR_RGBA32; | |
1492 | break; | |
1493 | case OMAPFB_COLOR_RGBX32: | |
1494 | mode = OMAP_DSS_COLOR_RGBX32; | |
1495 | break; | |
1496 | default: | |
1497 | mode = -EINVAL; | |
1498 | } | |
1499 | ||
1500 | return mode; | |
1501 | } | |
1502 | ||
1503 | static int omapfb_parse_vram_param(const char *param, int max_entries, | |
1504 | unsigned long *sizes, unsigned long *paddrs) | |
1505 | { | |
1506 | int fbnum; | |
1507 | unsigned long size; | |
1508 | unsigned long paddr = 0; | |
1509 | char *p, *start; | |
1510 | ||
1511 | start = (char *)param; | |
1512 | ||
1513 | while (1) { | |
1514 | p = start; | |
1515 | ||
1516 | fbnum = simple_strtoul(p, &p, 10); | |
1517 | ||
1518 | if (p == param) | |
1519 | return -EINVAL; | |
1520 | ||
1521 | if (*p != ':') | |
1522 | return -EINVAL; | |
1523 | ||
1524 | if (fbnum >= max_entries) | |
1525 | return -EINVAL; | |
1526 | ||
1527 | size = memparse(p + 1, &p); | |
1528 | ||
1529 | if (!size) | |
1530 | return -EINVAL; | |
1531 | ||
1532 | paddr = 0; | |
1533 | ||
1534 | if (*p == '@') { | |
1535 | paddr = simple_strtoul(p + 1, &p, 16); | |
1536 | ||
1537 | if (!paddr) | |
1538 | return -EINVAL; | |
1539 | ||
1540 | } | |
1541 | ||
1542 | paddrs[fbnum] = paddr; | |
1543 | sizes[fbnum] = size; | |
1544 | ||
1545 | if (*p == 0) | |
1546 | break; | |
1547 | ||
1548 | if (*p != ',') | |
1549 | return -EINVAL; | |
1550 | ||
1551 | ++p; | |
1552 | ||
1553 | start = p; | |
1554 | } | |
1555 | ||
1556 | return 0; | |
1557 | } | |
1558 | ||
1559 | static int omapfb_allocate_all_fbs(struct omapfb2_device *fbdev) | |
1560 | { | |
1561 | int i, r; | |
1562 | unsigned long vram_sizes[10]; | |
1563 | unsigned long vram_paddrs[10]; | |
1564 | ||
1565 | memset(&vram_sizes, 0, sizeof(vram_sizes)); | |
1566 | memset(&vram_paddrs, 0, sizeof(vram_paddrs)); | |
1567 | ||
1568 | if (def_vram && omapfb_parse_vram_param(def_vram, 10, | |
1569 | vram_sizes, vram_paddrs)) { | |
1570 | dev_err(fbdev->dev, "failed to parse vram parameter\n"); | |
1571 | ||
1572 | memset(&vram_sizes, 0, sizeof(vram_sizes)); | |
1573 | memset(&vram_paddrs, 0, sizeof(vram_paddrs)); | |
1574 | } | |
1575 | ||
1576 | if (fbdev->dev->platform_data) { | |
1577 | struct omapfb_platform_data *opd; | |
1578 | opd = fbdev->dev->platform_data; | |
1579 | for (i = 0; i < opd->mem_desc.region_cnt; ++i) { | |
1580 | if (!vram_sizes[i]) { | |
1581 | unsigned long size; | |
1582 | unsigned long paddr; | |
1583 | ||
1584 | size = opd->mem_desc.region[i].size; | |
1585 | paddr = opd->mem_desc.region[i].paddr; | |
1586 | ||
1587 | vram_sizes[i] = size; | |
1588 | vram_paddrs[i] = paddr; | |
1589 | } | |
1590 | } | |
1591 | } | |
1592 | ||
1593 | for (i = 0; i < fbdev->num_fbs; i++) { | |
1594 | /* allocate memory automatically only for fb0, or if | |
1595 | * excplicitly defined with vram or plat data option */ | |
1596 | if (i == 0 || vram_sizes[i] != 0) { | |
1597 | r = omapfb_alloc_fbmem_display(fbdev->fbs[i], | |
1598 | vram_sizes[i], vram_paddrs[i]); | |
1599 | ||
1600 | if (r) | |
1601 | return r; | |
1602 | } | |
1603 | } | |
1604 | ||
1605 | for (i = 0; i < fbdev->num_fbs; i++) { | |
1606 | struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]); | |
1607 | struct omapfb2_mem_region *rg; | |
1608 | rg = &ofbi->region; | |
1609 | ||
1610 | DBG("region%d phys %08x virt %p size=%lu\n", | |
1611 | i, | |
1612 | rg->paddr, | |
1613 | rg->vaddr, | |
1614 | rg->size); | |
1615 | } | |
1616 | ||
1617 | return 0; | |
1618 | } | |
1619 | ||
1620 | int omapfb_realloc_fbmem(struct fb_info *fbi, unsigned long size, int type) | |
1621 | { | |
1622 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
1623 | struct omapfb2_device *fbdev = ofbi->fbdev; | |
1624 | struct omap_dss_device *display = fb2display(fbi); | |
1625 | struct omapfb2_mem_region *rg = &ofbi->region; | |
1626 | unsigned long old_size = rg->size; | |
1627 | unsigned long old_paddr = rg->paddr; | |
1628 | int old_type = rg->type; | |
1629 | int r; | |
1630 | ||
1631 | if (type > OMAPFB_MEMTYPE_MAX) | |
1632 | return -EINVAL; | |
1633 | ||
1634 | size = PAGE_ALIGN(size); | |
1635 | ||
1636 | if (old_size == size && old_type == type) | |
1637 | return 0; | |
1638 | ||
1639 | if (display && display->sync) | |
1640 | display->sync(display); | |
1641 | ||
1642 | omapfb_free_fbmem(fbi); | |
1643 | ||
1644 | if (size == 0) { | |
1645 | clear_fb_info(fbi); | |
1646 | return 0; | |
1647 | } | |
1648 | ||
1649 | r = omapfb_alloc_fbmem(fbi, size, 0); | |
1650 | ||
1651 | if (r) { | |
1652 | if (old_size) | |
1653 | omapfb_alloc_fbmem(fbi, old_size, old_paddr); | |
1654 | ||
1655 | if (rg->size == 0) | |
1656 | clear_fb_info(fbi); | |
1657 | ||
1658 | return r; | |
1659 | } | |
1660 | ||
1661 | if (old_size == size) | |
1662 | return 0; | |
1663 | ||
1664 | if (old_size == 0) { | |
1665 | DBG("initializing fb %d\n", ofbi->id); | |
1666 | r = omapfb_fb_init(fbdev, fbi); | |
1667 | if (r) { | |
1668 | DBG("omapfb_fb_init failed\n"); | |
1669 | goto err; | |
1670 | } | |
1671 | r = omapfb_apply_changes(fbi, 1); | |
1672 | if (r) { | |
1673 | DBG("omapfb_apply_changes failed\n"); | |
1674 | goto err; | |
1675 | } | |
1676 | } else { | |
1677 | struct fb_var_screeninfo new_var; | |
1678 | memcpy(&new_var, &fbi->var, sizeof(new_var)); | |
1679 | r = check_fb_var(fbi, &new_var); | |
1680 | if (r) | |
1681 | goto err; | |
1682 | memcpy(&fbi->var, &new_var, sizeof(fbi->var)); | |
1683 | set_fb_fix(fbi); | |
1684 | r = setup_vrfb_rotation(fbi); | |
1685 | if (r) | |
1686 | goto err; | |
1687 | } | |
1688 | ||
1689 | return 0; | |
1690 | err: | |
1691 | omapfb_free_fbmem(fbi); | |
1692 | clear_fb_info(fbi); | |
1693 | return r; | |
1694 | } | |
1695 | ||
1696 | /* initialize fb_info, var, fix to something sane based on the display */ | |
1697 | static int omapfb_fb_init(struct omapfb2_device *fbdev, struct fb_info *fbi) | |
1698 | { | |
1699 | struct fb_var_screeninfo *var = &fbi->var; | |
1700 | struct omap_dss_device *display = fb2display(fbi); | |
1701 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
1702 | int r = 0; | |
1703 | ||
1704 | fbi->fbops = &omapfb_ops; | |
1705 | fbi->flags = FBINFO_FLAG_DEFAULT; | |
1706 | fbi->pseudo_palette = fbdev->pseudo_palette; | |
1707 | ||
1708 | if (ofbi->region.size == 0) { | |
1709 | clear_fb_info(fbi); | |
1710 | return 0; | |
1711 | } | |
1712 | ||
1713 | var->nonstd = 0; | |
1714 | var->bits_per_pixel = 0; | |
1715 | ||
1716 | var->rotate = def_rotate; | |
1717 | ||
1718 | /* | |
1719 | * Check if there is a default color format set in the board file, | |
1720 | * and use this format instead the default deducted from the | |
1721 | * display bpp. | |
1722 | */ | |
1723 | if (fbdev->dev->platform_data) { | |
1724 | struct omapfb_platform_data *opd; | |
1725 | int id = ofbi->id; | |
1726 | ||
1727 | opd = fbdev->dev->platform_data; | |
1728 | if (opd->mem_desc.region[id].format_used) { | |
1729 | enum omap_color_mode mode; | |
1730 | enum omapfb_color_format format; | |
1731 | ||
1732 | format = opd->mem_desc.region[id].format; | |
1733 | mode = fb_format_to_dss_mode(format); | |
1734 | if (mode < 0) { | |
1735 | r = mode; | |
1736 | goto err; | |
1737 | } | |
1738 | r = dss_mode_to_fb_mode(mode, var); | |
1739 | if (r < 0) | |
1740 | goto err; | |
1741 | } | |
1742 | } | |
1743 | ||
1744 | if (display) { | |
1745 | u16 w, h; | |
1746 | int rotation = (var->rotate + ofbi->rotation[0]) % 4; | |
1747 | ||
1748 | display->get_resolution(display, &w, &h); | |
1749 | ||
1750 | if (rotation == FB_ROTATE_CW || | |
1751 | rotation == FB_ROTATE_CCW) { | |
1752 | var->xres = h; | |
1753 | var->yres = w; | |
1754 | } else { | |
1755 | var->xres = w; | |
1756 | var->yres = h; | |
1757 | } | |
1758 | ||
1759 | var->xres_virtual = var->xres; | |
1760 | var->yres_virtual = var->yres; | |
1761 | ||
1762 | if (!var->bits_per_pixel) { | |
1763 | switch (display->get_recommended_bpp(display)) { | |
1764 | case 16: | |
1765 | var->bits_per_pixel = 16; | |
1766 | break; | |
1767 | case 24: | |
1768 | var->bits_per_pixel = 32; | |
1769 | break; | |
1770 | default: | |
1771 | dev_err(fbdev->dev, "illegal display " | |
1772 | "bpp\n"); | |
1773 | return -EINVAL; | |
1774 | } | |
1775 | } | |
1776 | } else { | |
1777 | /* if there's no display, let's just guess some basic values */ | |
1778 | var->xres = 320; | |
1779 | var->yres = 240; | |
1780 | var->xres_virtual = var->xres; | |
1781 | var->yres_virtual = var->yres; | |
1782 | if (!var->bits_per_pixel) | |
1783 | var->bits_per_pixel = 16; | |
1784 | } | |
1785 | ||
1786 | r = check_fb_var(fbi, var); | |
1787 | if (r) | |
1788 | goto err; | |
1789 | ||
1790 | set_fb_fix(fbi); | |
1791 | r = setup_vrfb_rotation(fbi); | |
1792 | if (r) | |
1793 | goto err; | |
1794 | ||
1795 | r = fb_alloc_cmap(&fbi->cmap, 256, 0); | |
1796 | if (r) | |
1797 | dev_err(fbdev->dev, "unable to allocate color map memory\n"); | |
1798 | ||
1799 | err: | |
1800 | return r; | |
1801 | } | |
1802 | ||
1803 | static void fbinfo_cleanup(struct omapfb2_device *fbdev, struct fb_info *fbi) | |
1804 | { | |
1805 | fb_dealloc_cmap(&fbi->cmap); | |
1806 | } | |
1807 | ||
1808 | ||
1809 | static void omapfb_free_resources(struct omapfb2_device *fbdev) | |
1810 | { | |
1811 | int i; | |
1812 | ||
1813 | DBG("free_resources\n"); | |
1814 | ||
1815 | if (fbdev == NULL) | |
1816 | return; | |
1817 | ||
1818 | for (i = 0; i < fbdev->num_fbs; i++) | |
1819 | unregister_framebuffer(fbdev->fbs[i]); | |
1820 | ||
1821 | /* free the reserved fbmem */ | |
1822 | omapfb_free_all_fbmem(fbdev); | |
1823 | ||
1824 | for (i = 0; i < fbdev->num_fbs; i++) { | |
1825 | fbinfo_cleanup(fbdev, fbdev->fbs[i]); | |
1826 | framebuffer_release(fbdev->fbs[i]); | |
1827 | } | |
1828 | ||
1829 | for (i = 0; i < fbdev->num_displays; i++) { | |
1830 | if (fbdev->displays[i]->state != OMAP_DSS_DISPLAY_DISABLED) | |
1831 | fbdev->displays[i]->disable(fbdev->displays[i]); | |
1832 | ||
1833 | omap_dss_put_device(fbdev->displays[i]); | |
1834 | } | |
1835 | ||
1836 | dev_set_drvdata(fbdev->dev, NULL); | |
1837 | kfree(fbdev); | |
1838 | } | |
1839 | ||
1840 | static int omapfb_create_framebuffers(struct omapfb2_device *fbdev) | |
1841 | { | |
1842 | int r, i; | |
1843 | ||
1844 | fbdev->num_fbs = 0; | |
1845 | ||
1846 | DBG("create %d framebuffers\n", CONFIG_FB_OMAP2_NUM_FBS); | |
1847 | ||
1848 | /* allocate fb_infos */ | |
1849 | for (i = 0; i < CONFIG_FB_OMAP2_NUM_FBS; i++) { | |
1850 | struct fb_info *fbi; | |
1851 | struct omapfb_info *ofbi; | |
1852 | ||
1853 | fbi = framebuffer_alloc(sizeof(struct omapfb_info), | |
1854 | fbdev->dev); | |
1855 | ||
1856 | if (fbi == NULL) { | |
1857 | dev_err(fbdev->dev, | |
1858 | "unable to allocate memory for plane info\n"); | |
1859 | return -ENOMEM; | |
1860 | } | |
1861 | ||
1862 | clear_fb_info(fbi); | |
1863 | ||
1864 | fbdev->fbs[i] = fbi; | |
1865 | ||
1866 | ofbi = FB2OFB(fbi); | |
1867 | ofbi->fbdev = fbdev; | |
1868 | ofbi->id = i; | |
1869 | ||
1870 | /* assign these early, so that fb alloc can use them */ | |
1871 | ofbi->rotation_type = def_vrfb ? OMAP_DSS_ROT_VRFB : | |
1872 | OMAP_DSS_ROT_DMA; | |
1873 | ofbi->mirror = def_mirror; | |
1874 | ||
1875 | fbdev->num_fbs++; | |
1876 | } | |
1877 | ||
1878 | DBG("fb_infos allocated\n"); | |
1879 | ||
1880 | /* assign overlays for the fbs */ | |
1881 | for (i = 0; i < min(fbdev->num_fbs, fbdev->num_overlays); i++) { | |
1882 | struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]); | |
1883 | ||
1884 | ofbi->overlays[0] = fbdev->overlays[i]; | |
1885 | ofbi->num_overlays = 1; | |
1886 | } | |
1887 | ||
1888 | /* allocate fb memories */ | |
1889 | r = omapfb_allocate_all_fbs(fbdev); | |
1890 | if (r) { | |
1891 | dev_err(fbdev->dev, "failed to allocate fbmem\n"); | |
1892 | return r; | |
1893 | } | |
1894 | ||
1895 | DBG("fbmems allocated\n"); | |
1896 | ||
1897 | /* setup fb_infos */ | |
1898 | for (i = 0; i < fbdev->num_fbs; i++) { | |
1899 | r = omapfb_fb_init(fbdev, fbdev->fbs[i]); | |
1900 | if (r) { | |
1901 | dev_err(fbdev->dev, "failed to setup fb_info\n"); | |
1902 | return r; | |
1903 | } | |
1904 | } | |
1905 | ||
1906 | DBG("fb_infos initialized\n"); | |
1907 | ||
1908 | for (i = 0; i < fbdev->num_fbs; i++) { | |
1909 | r = register_framebuffer(fbdev->fbs[i]); | |
1910 | if (r != 0) { | |
1911 | dev_err(fbdev->dev, | |
1912 | "registering framebuffer %d failed\n", i); | |
1913 | return r; | |
1914 | } | |
1915 | } | |
1916 | ||
1917 | DBG("framebuffers registered\n"); | |
1918 | ||
1919 | for (i = 0; i < fbdev->num_fbs; i++) { | |
1920 | r = omapfb_apply_changes(fbdev->fbs[i], 1); | |
1921 | if (r) { | |
1922 | dev_err(fbdev->dev, "failed to change mode\n"); | |
1923 | return r; | |
1924 | } | |
1925 | } | |
1926 | ||
1927 | DBG("create sysfs for fbs\n"); | |
1928 | r = omapfb_create_sysfs(fbdev); | |
1929 | if (r) { | |
1930 | dev_err(fbdev->dev, "failed to create sysfs entries\n"); | |
1931 | return r; | |
1932 | } | |
1933 | ||
1934 | /* Enable fb0 */ | |
1935 | if (fbdev->num_fbs > 0) { | |
1936 | struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[0]); | |
1937 | ||
1938 | if (ofbi->num_overlays > 0) { | |
1939 | struct omap_overlay *ovl = ofbi->overlays[0]; | |
1940 | ||
1941 | r = omapfb_overlay_enable(ovl, 1); | |
1942 | ||
1943 | if (r) { | |
1944 | dev_err(fbdev->dev, | |
1945 | "failed to enable overlay\n"); | |
1946 | return r; | |
1947 | } | |
1948 | } | |
1949 | } | |
1950 | ||
1951 | DBG("create_framebuffers done\n"); | |
1952 | ||
1953 | return 0; | |
1954 | } | |
1955 | ||
1956 | static int omapfb_mode_to_timings(const char *mode_str, | |
1957 | struct omap_video_timings *timings, u8 *bpp) | |
1958 | { | |
1959 | struct fb_info fbi; | |
1960 | struct fb_var_screeninfo var; | |
1961 | struct fb_ops fbops; | |
1962 | int r; | |
1963 | ||
1964 | #ifdef CONFIG_OMAP2_DSS_VENC | |
1965 | if (strcmp(mode_str, "pal") == 0) { | |
1966 | *timings = omap_dss_pal_timings; | |
1967 | *bpp = 0; | |
1968 | return 0; | |
1969 | } else if (strcmp(mode_str, "ntsc") == 0) { | |
1970 | *timings = omap_dss_ntsc_timings; | |
1971 | *bpp = 0; | |
1972 | return 0; | |
1973 | } | |
1974 | #endif | |
1975 | ||
1976 | /* this is quite a hack, but I wanted to use the modedb and for | |
1977 | * that we need fb_info and var, so we create dummy ones */ | |
1978 | ||
1979 | memset(&fbi, 0, sizeof(fbi)); | |
1980 | memset(&var, 0, sizeof(var)); | |
1981 | memset(&fbops, 0, sizeof(fbops)); | |
1982 | fbi.fbops = &fbops; | |
1983 | ||
1984 | r = fb_find_mode(&var, &fbi, mode_str, NULL, 0, NULL, 24); | |
1985 | ||
1986 | if (r != 0) { | |
1987 | timings->pixel_clock = PICOS2KHZ(var.pixclock); | |
1988 | timings->hfp = var.left_margin; | |
1989 | timings->hbp = var.right_margin; | |
1990 | timings->vfp = var.upper_margin; | |
1991 | timings->vbp = var.lower_margin; | |
1992 | timings->hsw = var.hsync_len; | |
1993 | timings->vsw = var.vsync_len; | |
1994 | timings->x_res = var.xres; | |
1995 | timings->y_res = var.yres; | |
1996 | ||
1997 | switch (var.bits_per_pixel) { | |
1998 | case 16: | |
1999 | *bpp = 16; | |
2000 | break; | |
2001 | case 24: | |
2002 | case 32: | |
2003 | default: | |
2004 | *bpp = 24; | |
2005 | break; | |
2006 | } | |
2007 | ||
2008 | return 0; | |
2009 | } else { | |
2010 | return -EINVAL; | |
2011 | } | |
2012 | } | |
2013 | ||
2014 | static int omapfb_set_def_mode(struct omap_dss_device *display, char *mode_str) | |
2015 | { | |
2016 | int r; | |
2017 | u8 bpp; | |
2018 | struct omap_video_timings timings; | |
2019 | ||
2020 | r = omapfb_mode_to_timings(mode_str, &timings, &bpp); | |
2021 | if (r) | |
2022 | return r; | |
2023 | ||
2024 | display->panel.recommended_bpp = bpp; | |
2025 | ||
2026 | if (!display->check_timings || !display->set_timings) | |
2027 | return -EINVAL; | |
2028 | ||
2029 | r = display->check_timings(display, &timings); | |
2030 | if (r) | |
2031 | return r; | |
2032 | ||
2033 | display->set_timings(display, &timings); | |
2034 | ||
2035 | return 0; | |
2036 | } | |
2037 | ||
2038 | static int omapfb_parse_def_modes(struct omapfb2_device *fbdev) | |
2039 | { | |
2040 | char *str, *options, *this_opt; | |
2041 | int r = 0; | |
2042 | ||
2043 | str = kmalloc(strlen(def_mode) + 1, GFP_KERNEL); | |
2044 | strcpy(str, def_mode); | |
2045 | options = str; | |
2046 | ||
2047 | while (!r && (this_opt = strsep(&options, ",")) != NULL) { | |
2048 | char *p, *display_str, *mode_str; | |
2049 | struct omap_dss_device *display; | |
2050 | int i; | |
2051 | ||
2052 | p = strchr(this_opt, ':'); | |
2053 | if (!p) { | |
2054 | r = -EINVAL; | |
2055 | break; | |
2056 | } | |
2057 | ||
2058 | *p = 0; | |
2059 | display_str = this_opt; | |
2060 | mode_str = p + 1; | |
2061 | ||
2062 | display = NULL; | |
2063 | for (i = 0; i < fbdev->num_displays; ++i) { | |
2064 | if (strcmp(fbdev->displays[i]->name, | |
2065 | display_str) == 0) { | |
2066 | display = fbdev->displays[i]; | |
2067 | break; | |
2068 | } | |
2069 | } | |
2070 | ||
2071 | if (!display) { | |
2072 | r = -EINVAL; | |
2073 | break; | |
2074 | } | |
2075 | ||
2076 | r = omapfb_set_def_mode(display, mode_str); | |
2077 | if (r) | |
2078 | break; | |
2079 | } | |
2080 | ||
2081 | kfree(str); | |
2082 | ||
2083 | return r; | |
2084 | } | |
2085 | ||
2086 | static int omapfb_probe(struct platform_device *pdev) | |
2087 | { | |
2088 | struct omapfb2_device *fbdev = NULL; | |
2089 | int r = 0; | |
2090 | int i; | |
2091 | struct omap_overlay *ovl; | |
2092 | struct omap_dss_device *def_display; | |
2093 | struct omap_dss_device *dssdev; | |
2094 | ||
2095 | DBG("omapfb_probe\n"); | |
2096 | ||
2097 | if (pdev->num_resources != 0) { | |
2098 | dev_err(&pdev->dev, "probed for an unknown device\n"); | |
2099 | r = -ENODEV; | |
2100 | goto err0; | |
2101 | } | |
2102 | ||
2103 | fbdev = kzalloc(sizeof(struct omapfb2_device), GFP_KERNEL); | |
2104 | if (fbdev == NULL) { | |
2105 | r = -ENOMEM; | |
2106 | goto err0; | |
2107 | } | |
2108 | ||
2109 | mutex_init(&fbdev->mtx); | |
2110 | ||
2111 | fbdev->dev = &pdev->dev; | |
2112 | platform_set_drvdata(pdev, fbdev); | |
2113 | ||
2114 | fbdev->num_displays = 0; | |
2115 | dssdev = NULL; | |
2116 | for_each_dss_dev(dssdev) { | |
2117 | omap_dss_get_device(dssdev); | |
807a7515 TV |
2118 | if (!dssdev->driver) { |
2119 | dev_err(&pdev->dev, "no driver for display\n"); | |
2120 | r = -EINVAL; | |
2121 | goto cleanup; | |
2122 | } | |
b39a982d TV |
2123 | fbdev->displays[fbdev->num_displays++] = dssdev; |
2124 | } | |
2125 | ||
2126 | if (fbdev->num_displays == 0) { | |
2127 | dev_err(&pdev->dev, "no displays\n"); | |
2128 | r = -EINVAL; | |
2129 | goto cleanup; | |
2130 | } | |
2131 | ||
2132 | fbdev->num_overlays = omap_dss_get_num_overlays(); | |
2133 | for (i = 0; i < fbdev->num_overlays; i++) | |
2134 | fbdev->overlays[i] = omap_dss_get_overlay(i); | |
2135 | ||
2136 | fbdev->num_managers = omap_dss_get_num_overlay_managers(); | |
2137 | for (i = 0; i < fbdev->num_managers; i++) | |
2138 | fbdev->managers[i] = omap_dss_get_overlay_manager(i); | |
2139 | ||
2140 | if (def_mode && strlen(def_mode) > 0) { | |
2141 | if (omapfb_parse_def_modes(fbdev)) | |
2142 | dev_warn(&pdev->dev, "cannot parse default modes\n"); | |
2143 | } | |
2144 | ||
2145 | r = omapfb_create_framebuffers(fbdev); | |
2146 | if (r) | |
2147 | goto cleanup; | |
2148 | ||
2149 | for (i = 0; i < fbdev->num_managers; i++) { | |
2150 | struct omap_overlay_manager *mgr; | |
2151 | mgr = fbdev->managers[i]; | |
2152 | r = mgr->apply(mgr); | |
2153 | if (r) | |
2154 | dev_warn(fbdev->dev, "failed to apply dispc config\n"); | |
2155 | } | |
2156 | ||
2157 | DBG("mgr->apply'ed\n"); | |
2158 | ||
2159 | /* gfx overlay should be the default one. find a display | |
2160 | * connected to that, and use it as default display */ | |
2161 | ovl = omap_dss_get_overlay(0); | |
2162 | if (ovl->manager && ovl->manager->device) { | |
2163 | def_display = ovl->manager->device; | |
2164 | } else { | |
2165 | dev_warn(&pdev->dev, "cannot find default display\n"); | |
2166 | def_display = NULL; | |
2167 | } | |
2168 | ||
2169 | if (def_display) { | |
2170 | #ifndef CONFIG_FB_OMAP2_FORCE_AUTO_UPDATE | |
2171 | u16 w, h; | |
2172 | #endif | |
2173 | r = def_display->enable(def_display); | |
2174 | if (r) | |
2175 | dev_warn(fbdev->dev, "Failed to enable display '%s'\n", | |
2176 | def_display->name); | |
2177 | ||
2178 | /* set the update mode */ | |
2179 | if (def_display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) { | |
2180 | #ifdef CONFIG_FB_OMAP2_FORCE_AUTO_UPDATE | |
2181 | if (def_display->enable_te) | |
2182 | def_display->enable_te(def_display, 1); | |
2183 | if (def_display->set_update_mode) | |
2184 | def_display->set_update_mode(def_display, | |
2185 | OMAP_DSS_UPDATE_AUTO); | |
2186 | #else /* MANUAL_UPDATE */ | |
2187 | if (def_display->enable_te) | |
2188 | def_display->enable_te(def_display, 0); | |
2189 | if (def_display->set_update_mode) | |
2190 | def_display->set_update_mode(def_display, | |
2191 | OMAP_DSS_UPDATE_MANUAL); | |
2192 | ||
2193 | def_display->get_resolution(def_display, &w, &h); | |
2194 | def_display->update(def_display, 0, 0, w, h); | |
2195 | #endif | |
2196 | } else { | |
2197 | if (def_display->set_update_mode) | |
2198 | def_display->set_update_mode(def_display, | |
2199 | OMAP_DSS_UPDATE_AUTO); | |
2200 | } | |
2201 | } | |
2202 | ||
2203 | return 0; | |
2204 | ||
2205 | cleanup: | |
2206 | omapfb_free_resources(fbdev); | |
2207 | err0: | |
2208 | dev_err(&pdev->dev, "failed to setup omapfb\n"); | |
2209 | return r; | |
2210 | } | |
2211 | ||
2212 | static int omapfb_remove(struct platform_device *pdev) | |
2213 | { | |
2214 | struct omapfb2_device *fbdev = platform_get_drvdata(pdev); | |
2215 | ||
2216 | /* FIXME: wait till completion of pending events */ | |
2217 | ||
2218 | omapfb_remove_sysfs(fbdev); | |
2219 | ||
2220 | omapfb_free_resources(fbdev); | |
2221 | ||
2222 | return 0; | |
2223 | } | |
2224 | ||
2225 | static struct platform_driver omapfb_driver = { | |
2226 | .probe = omapfb_probe, | |
2227 | .remove = omapfb_remove, | |
2228 | .driver = { | |
2229 | .name = "omapfb", | |
2230 | .owner = THIS_MODULE, | |
2231 | }, | |
2232 | }; | |
2233 | ||
2234 | static int __init omapfb_init(void) | |
2235 | { | |
2236 | DBG("omapfb_init\n"); | |
2237 | ||
2238 | if (platform_driver_register(&omapfb_driver)) { | |
2239 | printk(KERN_ERR "failed to register omapfb driver\n"); | |
2240 | return -ENODEV; | |
2241 | } | |
2242 | ||
2243 | return 0; | |
2244 | } | |
2245 | ||
2246 | static void __exit omapfb_exit(void) | |
2247 | { | |
2248 | DBG("omapfb_exit\n"); | |
2249 | platform_driver_unregister(&omapfb_driver); | |
2250 | } | |
2251 | ||
2252 | module_param_named(mode, def_mode, charp, 0); | |
2253 | module_param_named(vram, def_vram, charp, 0); | |
2254 | module_param_named(rotate, def_rotate, int, 0); | |
2255 | module_param_named(vrfb, def_vrfb, bool, 0); | |
2256 | module_param_named(mirror, def_mirror, bool, 0); | |
2257 | ||
2258 | /* late_initcall to let panel/ctrl drivers loaded first. | |
2259 | * I guess better option would be a more dynamic approach, | |
2260 | * so that omapfb reacts to new panels when they are loaded */ | |
2261 | late_initcall(omapfb_init); | |
2262 | /*module_init(omapfb_init);*/ | |
2263 | module_exit(omapfb_exit); | |
2264 | ||
2265 | MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@nokia.com>"); | |
2266 | MODULE_DESCRIPTION("OMAP2/3 Framebuffer"); | |
2267 | MODULE_LICENSE("GPL v2"); |