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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); | |
a2699504 TV |
57 | static int omapfb_get_recommended_bpp(struct omapfb2_device *fbdev, |
58 | struct omap_dss_device *dssdev); | |
b39a982d TV |
59 | |
60 | #ifdef DEBUG | |
61 | static void draw_pixel(struct fb_info *fbi, int x, int y, unsigned color) | |
62 | { | |
63 | struct fb_var_screeninfo *var = &fbi->var; | |
64 | struct fb_fix_screeninfo *fix = &fbi->fix; | |
65 | void __iomem *addr = fbi->screen_base; | |
66 | const unsigned bytespp = var->bits_per_pixel >> 3; | |
67 | const unsigned line_len = fix->line_length / bytespp; | |
68 | ||
69 | int r = (color >> 16) & 0xff; | |
70 | int g = (color >> 8) & 0xff; | |
71 | int b = (color >> 0) & 0xff; | |
72 | ||
73 | if (var->bits_per_pixel == 16) { | |
74 | u16 __iomem *p = (u16 __iomem *)addr; | |
75 | p += y * line_len + x; | |
76 | ||
77 | r = r * 32 / 256; | |
78 | g = g * 64 / 256; | |
79 | b = b * 32 / 256; | |
80 | ||
81 | __raw_writew((r << 11) | (g << 5) | (b << 0), p); | |
82 | } else if (var->bits_per_pixel == 24) { | |
83 | u8 __iomem *p = (u8 __iomem *)addr; | |
84 | p += (y * line_len + x) * 3; | |
85 | ||
86 | __raw_writeb(b, p + 0); | |
87 | __raw_writeb(g, p + 1); | |
88 | __raw_writeb(r, p + 2); | |
89 | } else if (var->bits_per_pixel == 32) { | |
90 | u32 __iomem *p = (u32 __iomem *)addr; | |
91 | p += y * line_len + x; | |
92 | __raw_writel(color, p); | |
93 | } | |
94 | } | |
95 | ||
96 | static void fill_fb(struct fb_info *fbi) | |
97 | { | |
98 | struct fb_var_screeninfo *var = &fbi->var; | |
99 | const short w = var->xres_virtual; | |
100 | const short h = var->yres_virtual; | |
101 | void __iomem *addr = fbi->screen_base; | |
102 | int y, x; | |
103 | ||
104 | if (!addr) | |
105 | return; | |
106 | ||
107 | DBG("fill_fb %dx%d, line_len %d bytes\n", w, h, fbi->fix.line_length); | |
108 | ||
109 | for (y = 0; y < h; y++) { | |
110 | for (x = 0; x < w; x++) { | |
111 | if (x < 20 && y < 20) | |
112 | draw_pixel(fbi, x, y, 0xffffff); | |
113 | else if (x < 20 && (y > 20 && y < h - 20)) | |
114 | draw_pixel(fbi, x, y, 0xff); | |
115 | else if (y < 20 && (x > 20 && x < w - 20)) | |
116 | draw_pixel(fbi, x, y, 0xff00); | |
117 | else if (x > w - 20 && (y > 20 && y < h - 20)) | |
118 | draw_pixel(fbi, x, y, 0xff0000); | |
119 | else if (y > h - 20 && (x > 20 && x < w - 20)) | |
120 | draw_pixel(fbi, x, y, 0xffff00); | |
121 | else if (x == 20 || x == w - 20 || | |
122 | y == 20 || y == h - 20) | |
123 | draw_pixel(fbi, x, y, 0xffffff); | |
124 | else if (x == y || w - x == h - y) | |
125 | draw_pixel(fbi, x, y, 0xff00ff); | |
126 | else if (w - x == y || x == h - y) | |
127 | draw_pixel(fbi, x, y, 0x00ffff); | |
128 | else if (x > 20 && y > 20 && x < w - 20 && y < h - 20) { | |
129 | int t = x * 3 / w; | |
130 | unsigned r = 0, g = 0, b = 0; | |
131 | unsigned c; | |
132 | if (var->bits_per_pixel == 16) { | |
133 | if (t == 0) | |
134 | b = (y % 32) * 256 / 32; | |
135 | else if (t == 1) | |
136 | g = (y % 64) * 256 / 64; | |
137 | else if (t == 2) | |
138 | r = (y % 32) * 256 / 32; | |
139 | } else { | |
140 | if (t == 0) | |
141 | b = (y % 256); | |
142 | else if (t == 1) | |
143 | g = (y % 256); | |
144 | else if (t == 2) | |
145 | r = (y % 256); | |
146 | } | |
147 | c = (r << 16) | (g << 8) | (b << 0); | |
148 | draw_pixel(fbi, x, y, c); | |
149 | } else { | |
150 | draw_pixel(fbi, x, y, 0); | |
151 | } | |
152 | } | |
153 | } | |
154 | } | |
155 | #endif | |
156 | ||
157 | static unsigned omapfb_get_vrfb_offset(struct omapfb_info *ofbi, int rot) | |
158 | { | |
159 | struct vrfb *vrfb = &ofbi->region.vrfb; | |
160 | unsigned offset; | |
161 | ||
162 | switch (rot) { | |
163 | case FB_ROTATE_UR: | |
164 | offset = 0; | |
165 | break; | |
166 | case FB_ROTATE_CW: | |
167 | offset = vrfb->yoffset; | |
168 | break; | |
169 | case FB_ROTATE_UD: | |
170 | offset = vrfb->yoffset * OMAP_VRFB_LINE_LEN + vrfb->xoffset; | |
171 | break; | |
172 | case FB_ROTATE_CCW: | |
173 | offset = vrfb->xoffset * OMAP_VRFB_LINE_LEN; | |
174 | break; | |
175 | default: | |
176 | BUG(); | |
177 | } | |
178 | ||
179 | offset *= vrfb->bytespp; | |
180 | ||
181 | return offset; | |
182 | } | |
183 | ||
184 | static u32 omapfb_get_region_rot_paddr(struct omapfb_info *ofbi, int rot) | |
185 | { | |
186 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { | |
187 | return ofbi->region.vrfb.paddr[rot] | |
188 | + omapfb_get_vrfb_offset(ofbi, rot); | |
189 | } else { | |
190 | return ofbi->region.paddr; | |
191 | } | |
192 | } | |
193 | ||
194 | static u32 omapfb_get_region_paddr(struct omapfb_info *ofbi) | |
195 | { | |
196 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) | |
197 | return ofbi->region.vrfb.paddr[0]; | |
198 | else | |
199 | return ofbi->region.paddr; | |
200 | } | |
201 | ||
202 | static void __iomem *omapfb_get_region_vaddr(struct omapfb_info *ofbi) | |
203 | { | |
204 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) | |
205 | return ofbi->region.vrfb.vaddr[0]; | |
206 | else | |
207 | return ofbi->region.vaddr; | |
208 | } | |
209 | ||
210 | static struct omapfb_colormode omapfb_colormodes[] = { | |
211 | { | |
212 | .dssmode = OMAP_DSS_COLOR_UYVY, | |
213 | .bits_per_pixel = 16, | |
214 | .nonstd = OMAPFB_COLOR_YUV422, | |
215 | }, { | |
216 | .dssmode = OMAP_DSS_COLOR_YUV2, | |
217 | .bits_per_pixel = 16, | |
218 | .nonstd = OMAPFB_COLOR_YUY422, | |
219 | }, { | |
220 | .dssmode = OMAP_DSS_COLOR_ARGB16, | |
221 | .bits_per_pixel = 16, | |
222 | .red = { .length = 4, .offset = 8, .msb_right = 0 }, | |
223 | .green = { .length = 4, .offset = 4, .msb_right = 0 }, | |
224 | .blue = { .length = 4, .offset = 0, .msb_right = 0 }, | |
225 | .transp = { .length = 4, .offset = 12, .msb_right = 0 }, | |
226 | }, { | |
227 | .dssmode = OMAP_DSS_COLOR_RGB16, | |
228 | .bits_per_pixel = 16, | |
229 | .red = { .length = 5, .offset = 11, .msb_right = 0 }, | |
230 | .green = { .length = 6, .offset = 5, .msb_right = 0 }, | |
231 | .blue = { .length = 5, .offset = 0, .msb_right = 0 }, | |
232 | .transp = { .length = 0, .offset = 0, .msb_right = 0 }, | |
233 | }, { | |
234 | .dssmode = OMAP_DSS_COLOR_RGB24P, | |
235 | .bits_per_pixel = 24, | |
236 | .red = { .length = 8, .offset = 16, .msb_right = 0 }, | |
237 | .green = { .length = 8, .offset = 8, .msb_right = 0 }, | |
238 | .blue = { .length = 8, .offset = 0, .msb_right = 0 }, | |
239 | .transp = { .length = 0, .offset = 0, .msb_right = 0 }, | |
240 | }, { | |
241 | .dssmode = OMAP_DSS_COLOR_RGB24U, | |
242 | .bits_per_pixel = 32, | |
243 | .red = { .length = 8, .offset = 16, .msb_right = 0 }, | |
244 | .green = { .length = 8, .offset = 8, .msb_right = 0 }, | |
245 | .blue = { .length = 8, .offset = 0, .msb_right = 0 }, | |
246 | .transp = { .length = 0, .offset = 0, .msb_right = 0 }, | |
247 | }, { | |
248 | .dssmode = OMAP_DSS_COLOR_ARGB32, | |
249 | .bits_per_pixel = 32, | |
250 | .red = { .length = 8, .offset = 16, .msb_right = 0 }, | |
251 | .green = { .length = 8, .offset = 8, .msb_right = 0 }, | |
252 | .blue = { .length = 8, .offset = 0, .msb_right = 0 }, | |
253 | .transp = { .length = 8, .offset = 24, .msb_right = 0 }, | |
254 | }, { | |
255 | .dssmode = OMAP_DSS_COLOR_RGBA32, | |
256 | .bits_per_pixel = 32, | |
257 | .red = { .length = 8, .offset = 24, .msb_right = 0 }, | |
258 | .green = { .length = 8, .offset = 16, .msb_right = 0 }, | |
259 | .blue = { .length = 8, .offset = 8, .msb_right = 0 }, | |
260 | .transp = { .length = 8, .offset = 0, .msb_right = 0 }, | |
261 | }, { | |
262 | .dssmode = OMAP_DSS_COLOR_RGBX32, | |
263 | .bits_per_pixel = 32, | |
264 | .red = { .length = 8, .offset = 24, .msb_right = 0 }, | |
265 | .green = { .length = 8, .offset = 16, .msb_right = 0 }, | |
266 | .blue = { .length = 8, .offset = 8, .msb_right = 0 }, | |
267 | .transp = { .length = 0, .offset = 0, .msb_right = 0 }, | |
268 | }, | |
269 | }; | |
270 | ||
271 | static bool cmp_var_to_colormode(struct fb_var_screeninfo *var, | |
272 | struct omapfb_colormode *color) | |
273 | { | |
274 | bool cmp_component(struct fb_bitfield *f1, struct fb_bitfield *f2) | |
275 | { | |
276 | return f1->length == f2->length && | |
277 | f1->offset == f2->offset && | |
278 | f1->msb_right == f2->msb_right; | |
279 | } | |
280 | ||
281 | if (var->bits_per_pixel == 0 || | |
282 | var->red.length == 0 || | |
283 | var->blue.length == 0 || | |
284 | var->green.length == 0) | |
285 | return 0; | |
286 | ||
287 | return var->bits_per_pixel == color->bits_per_pixel && | |
288 | cmp_component(&var->red, &color->red) && | |
289 | cmp_component(&var->green, &color->green) && | |
290 | cmp_component(&var->blue, &color->blue) && | |
291 | cmp_component(&var->transp, &color->transp); | |
292 | } | |
293 | ||
294 | static void assign_colormode_to_var(struct fb_var_screeninfo *var, | |
295 | struct omapfb_colormode *color) | |
296 | { | |
297 | var->bits_per_pixel = color->bits_per_pixel; | |
298 | var->nonstd = color->nonstd; | |
299 | var->red = color->red; | |
300 | var->green = color->green; | |
301 | var->blue = color->blue; | |
302 | var->transp = color->transp; | |
303 | } | |
304 | ||
305 | static int fb_mode_to_dss_mode(struct fb_var_screeninfo *var, | |
306 | enum omap_color_mode *mode) | |
307 | { | |
308 | enum omap_color_mode dssmode; | |
309 | int i; | |
310 | ||
311 | /* first match with nonstd field */ | |
312 | if (var->nonstd) { | |
313 | for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) { | |
314 | struct omapfb_colormode *m = &omapfb_colormodes[i]; | |
315 | if (var->nonstd == m->nonstd) { | |
316 | assign_colormode_to_var(var, m); | |
317 | *mode = m->dssmode; | |
318 | return 0; | |
319 | } | |
320 | } | |
321 | ||
322 | return -EINVAL; | |
323 | } | |
324 | ||
325 | /* then try exact match of bpp and colors */ | |
326 | for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) { | |
327 | struct omapfb_colormode *m = &omapfb_colormodes[i]; | |
328 | if (cmp_var_to_colormode(var, m)) { | |
329 | assign_colormode_to_var(var, m); | |
330 | *mode = m->dssmode; | |
331 | return 0; | |
332 | } | |
333 | } | |
334 | ||
335 | /* match with bpp if user has not filled color fields | |
336 | * properly */ | |
337 | switch (var->bits_per_pixel) { | |
338 | case 1: | |
339 | dssmode = OMAP_DSS_COLOR_CLUT1; | |
340 | break; | |
341 | case 2: | |
342 | dssmode = OMAP_DSS_COLOR_CLUT2; | |
343 | break; | |
344 | case 4: | |
345 | dssmode = OMAP_DSS_COLOR_CLUT4; | |
346 | break; | |
347 | case 8: | |
348 | dssmode = OMAP_DSS_COLOR_CLUT8; | |
349 | break; | |
350 | case 12: | |
351 | dssmode = OMAP_DSS_COLOR_RGB12U; | |
352 | break; | |
353 | case 16: | |
354 | dssmode = OMAP_DSS_COLOR_RGB16; | |
355 | break; | |
356 | case 24: | |
357 | dssmode = OMAP_DSS_COLOR_RGB24P; | |
358 | break; | |
359 | case 32: | |
360 | dssmode = OMAP_DSS_COLOR_RGB24U; | |
361 | break; | |
362 | default: | |
363 | return -EINVAL; | |
364 | } | |
365 | ||
366 | for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) { | |
367 | struct omapfb_colormode *m = &omapfb_colormodes[i]; | |
368 | if (dssmode == m->dssmode) { | |
369 | assign_colormode_to_var(var, m); | |
370 | *mode = m->dssmode; | |
371 | return 0; | |
372 | } | |
373 | } | |
374 | ||
375 | return -EINVAL; | |
376 | } | |
377 | ||
378 | static int check_fb_res_bounds(struct fb_var_screeninfo *var) | |
379 | { | |
380 | int xres_min = OMAPFB_PLANE_XRES_MIN; | |
381 | int xres_max = 2048; | |
382 | int yres_min = OMAPFB_PLANE_YRES_MIN; | |
383 | int yres_max = 2048; | |
384 | ||
385 | /* XXX: some applications seem to set virtual res to 0. */ | |
386 | if (var->xres_virtual == 0) | |
387 | var->xres_virtual = var->xres; | |
388 | ||
389 | if (var->yres_virtual == 0) | |
390 | var->yres_virtual = var->yres; | |
391 | ||
392 | if (var->xres_virtual < xres_min || var->yres_virtual < yres_min) | |
393 | return -EINVAL; | |
394 | ||
395 | if (var->xres < xres_min) | |
396 | var->xres = xres_min; | |
397 | if (var->yres < yres_min) | |
398 | var->yres = yres_min; | |
399 | if (var->xres > xres_max) | |
400 | var->xres = xres_max; | |
401 | if (var->yres > yres_max) | |
402 | var->yres = yres_max; | |
403 | ||
404 | if (var->xres > var->xres_virtual) | |
405 | var->xres = var->xres_virtual; | |
406 | if (var->yres > var->yres_virtual) | |
407 | var->yres = var->yres_virtual; | |
408 | ||
409 | return 0; | |
410 | } | |
411 | ||
412 | static void shrink_height(unsigned long max_frame_size, | |
413 | struct fb_var_screeninfo *var) | |
414 | { | |
415 | DBG("can't fit FB into memory, reducing y\n"); | |
416 | var->yres_virtual = max_frame_size / | |
417 | (var->xres_virtual * var->bits_per_pixel >> 3); | |
418 | ||
419 | if (var->yres_virtual < OMAPFB_PLANE_YRES_MIN) | |
420 | var->yres_virtual = OMAPFB_PLANE_YRES_MIN; | |
421 | ||
422 | if (var->yres > var->yres_virtual) | |
423 | var->yres = var->yres_virtual; | |
424 | } | |
425 | ||
426 | static void shrink_width(unsigned long max_frame_size, | |
427 | struct fb_var_screeninfo *var) | |
428 | { | |
429 | DBG("can't fit FB into memory, reducing x\n"); | |
430 | var->xres_virtual = max_frame_size / var->yres_virtual / | |
431 | (var->bits_per_pixel >> 3); | |
432 | ||
433 | if (var->xres_virtual < OMAPFB_PLANE_XRES_MIN) | |
434 | var->xres_virtual = OMAPFB_PLANE_XRES_MIN; | |
435 | ||
436 | if (var->xres > var->xres_virtual) | |
437 | var->xres = var->xres_virtual; | |
438 | } | |
439 | ||
440 | static int check_vrfb_fb_size(unsigned long region_size, | |
441 | const struct fb_var_screeninfo *var) | |
442 | { | |
443 | unsigned long min_phys_size = omap_vrfb_min_phys_size(var->xres_virtual, | |
444 | var->yres_virtual, var->bits_per_pixel >> 3); | |
445 | ||
446 | return min_phys_size > region_size ? -EINVAL : 0; | |
447 | } | |
448 | ||
449 | static int check_fb_size(const struct omapfb_info *ofbi, | |
450 | struct fb_var_screeninfo *var) | |
451 | { | |
452 | unsigned long max_frame_size = ofbi->region.size; | |
453 | int bytespp = var->bits_per_pixel >> 3; | |
454 | unsigned long line_size = var->xres_virtual * bytespp; | |
455 | ||
456 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { | |
457 | /* One needs to check for both VRFB and OMAPFB limitations. */ | |
458 | if (check_vrfb_fb_size(max_frame_size, var)) | |
459 | shrink_height(omap_vrfb_max_height( | |
460 | max_frame_size, var->xres_virtual, bytespp) * | |
461 | line_size, var); | |
462 | ||
463 | if (check_vrfb_fb_size(max_frame_size, var)) { | |
464 | DBG("cannot fit FB to memory\n"); | |
465 | return -EINVAL; | |
466 | } | |
467 | ||
468 | return 0; | |
469 | } | |
470 | ||
471 | DBG("max frame size %lu, line size %lu\n", max_frame_size, line_size); | |
472 | ||
473 | if (line_size * var->yres_virtual > max_frame_size) | |
474 | shrink_height(max_frame_size, var); | |
475 | ||
476 | if (line_size * var->yres_virtual > max_frame_size) { | |
477 | shrink_width(max_frame_size, var); | |
478 | line_size = var->xres_virtual * bytespp; | |
479 | } | |
480 | ||
481 | if (line_size * var->yres_virtual > max_frame_size) { | |
482 | DBG("cannot fit FB to memory\n"); | |
483 | return -EINVAL; | |
484 | } | |
485 | ||
486 | return 0; | |
487 | } | |
488 | ||
489 | /* | |
490 | * Consider if VRFB assisted rotation is in use and if the virtual space for | |
491 | * the zero degree view needs to be mapped. The need for mapping also acts as | |
492 | * the trigger for setting up the hardware on the context in question. This | |
493 | * ensures that one does not attempt to access the virtual view before the | |
494 | * hardware is serving the address translations. | |
495 | */ | |
496 | static int setup_vrfb_rotation(struct fb_info *fbi) | |
497 | { | |
498 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
499 | struct omapfb2_mem_region *rg = &ofbi->region; | |
500 | struct vrfb *vrfb = &rg->vrfb; | |
501 | struct fb_var_screeninfo *var = &fbi->var; | |
502 | struct fb_fix_screeninfo *fix = &fbi->fix; | |
503 | unsigned bytespp; | |
504 | bool yuv_mode; | |
505 | enum omap_color_mode mode; | |
506 | int r; | |
507 | bool reconf; | |
508 | ||
509 | if (!rg->size || ofbi->rotation_type != OMAP_DSS_ROT_VRFB) | |
510 | return 0; | |
511 | ||
512 | DBG("setup_vrfb_rotation\n"); | |
513 | ||
514 | r = fb_mode_to_dss_mode(var, &mode); | |
515 | if (r) | |
516 | return r; | |
517 | ||
518 | bytespp = var->bits_per_pixel >> 3; | |
519 | ||
520 | yuv_mode = mode == OMAP_DSS_COLOR_YUV2 || mode == OMAP_DSS_COLOR_UYVY; | |
521 | ||
522 | /* We need to reconfigure VRFB if the resolution changes, if yuv mode | |
523 | * is enabled/disabled, or if bytes per pixel changes */ | |
524 | ||
525 | /* XXX we shouldn't allow this when framebuffer is mmapped */ | |
526 | ||
527 | reconf = false; | |
528 | ||
529 | if (yuv_mode != vrfb->yuv_mode) | |
530 | reconf = true; | |
531 | else if (bytespp != vrfb->bytespp) | |
532 | reconf = true; | |
533 | else if (vrfb->xres != var->xres_virtual || | |
534 | vrfb->yres != var->yres_virtual) | |
535 | reconf = true; | |
536 | ||
537 | if (vrfb->vaddr[0] && reconf) { | |
538 | fbi->screen_base = NULL; | |
539 | fix->smem_start = 0; | |
540 | fix->smem_len = 0; | |
541 | iounmap(vrfb->vaddr[0]); | |
542 | vrfb->vaddr[0] = NULL; | |
543 | DBG("setup_vrfb_rotation: reset fb\n"); | |
544 | } | |
545 | ||
546 | if (vrfb->vaddr[0]) | |
547 | return 0; | |
548 | ||
549 | omap_vrfb_setup(&rg->vrfb, rg->paddr, | |
550 | var->xres_virtual, | |
551 | var->yres_virtual, | |
552 | bytespp, yuv_mode); | |
553 | ||
554 | /* Now one can ioremap the 0 angle view */ | |
555 | r = omap_vrfb_map_angle(vrfb, var->yres_virtual, 0); | |
556 | if (r) | |
557 | return r; | |
558 | ||
559 | /* used by open/write in fbmem.c */ | |
560 | fbi->screen_base = ofbi->region.vrfb.vaddr[0]; | |
561 | ||
562 | fix->smem_start = ofbi->region.vrfb.paddr[0]; | |
563 | ||
564 | switch (var->nonstd) { | |
565 | case OMAPFB_COLOR_YUV422: | |
566 | case OMAPFB_COLOR_YUY422: | |
567 | fix->line_length = | |
568 | (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 2; | |
569 | break; | |
570 | default: | |
571 | fix->line_length = | |
572 | (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 3; | |
573 | break; | |
574 | } | |
575 | ||
576 | fix->smem_len = var->yres_virtual * fix->line_length; | |
577 | ||
578 | return 0; | |
579 | } | |
580 | ||
581 | int dss_mode_to_fb_mode(enum omap_color_mode dssmode, | |
582 | struct fb_var_screeninfo *var) | |
583 | { | |
584 | int i; | |
585 | ||
586 | for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) { | |
587 | struct omapfb_colormode *mode = &omapfb_colormodes[i]; | |
588 | if (dssmode == mode->dssmode) { | |
589 | assign_colormode_to_var(var, mode); | |
590 | return 0; | |
591 | } | |
592 | } | |
593 | return -ENOENT; | |
594 | } | |
595 | ||
596 | void set_fb_fix(struct fb_info *fbi) | |
597 | { | |
598 | struct fb_fix_screeninfo *fix = &fbi->fix; | |
599 | struct fb_var_screeninfo *var = &fbi->var; | |
600 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
601 | struct omapfb2_mem_region *rg = &ofbi->region; | |
602 | ||
603 | DBG("set_fb_fix\n"); | |
604 | ||
605 | /* used by open/write in fbmem.c */ | |
606 | fbi->screen_base = (char __iomem *)omapfb_get_region_vaddr(ofbi); | |
607 | ||
608 | /* used by mmap in fbmem.c */ | |
609 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { | |
610 | switch (var->nonstd) { | |
611 | case OMAPFB_COLOR_YUV422: | |
612 | case OMAPFB_COLOR_YUY422: | |
613 | fix->line_length = | |
614 | (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 2; | |
615 | break; | |
616 | default: | |
617 | fix->line_length = | |
618 | (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 3; | |
619 | break; | |
620 | } | |
621 | ||
622 | fix->smem_len = var->yres_virtual * fix->line_length; | |
623 | } else { | |
624 | fix->line_length = | |
625 | (var->xres_virtual * var->bits_per_pixel) >> 3; | |
626 | fix->smem_len = rg->size; | |
627 | } | |
628 | ||
629 | fix->smem_start = omapfb_get_region_paddr(ofbi); | |
630 | ||
631 | fix->type = FB_TYPE_PACKED_PIXELS; | |
632 | ||
633 | if (var->nonstd) | |
634 | fix->visual = FB_VISUAL_PSEUDOCOLOR; | |
635 | else { | |
636 | switch (var->bits_per_pixel) { | |
637 | case 32: | |
638 | case 24: | |
639 | case 16: | |
640 | case 12: | |
641 | fix->visual = FB_VISUAL_TRUECOLOR; | |
642 | /* 12bpp is stored in 16 bits */ | |
643 | break; | |
644 | case 1: | |
645 | case 2: | |
646 | case 4: | |
647 | case 8: | |
648 | fix->visual = FB_VISUAL_PSEUDOCOLOR; | |
649 | break; | |
650 | } | |
651 | } | |
652 | ||
653 | fix->accel = FB_ACCEL_NONE; | |
654 | ||
655 | fix->xpanstep = 1; | |
656 | fix->ypanstep = 1; | |
657 | } | |
658 | ||
659 | /* check new var and possibly modify it to be ok */ | |
660 | int check_fb_var(struct fb_info *fbi, struct fb_var_screeninfo *var) | |
661 | { | |
662 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
663 | struct omap_dss_device *display = fb2display(fbi); | |
664 | enum omap_color_mode mode = 0; | |
665 | int i; | |
666 | int r; | |
667 | ||
668 | DBG("check_fb_var %d\n", ofbi->id); | |
669 | ||
670 | if (ofbi->region.size == 0) | |
671 | return 0; | |
672 | ||
673 | r = fb_mode_to_dss_mode(var, &mode); | |
674 | if (r) { | |
675 | DBG("cannot convert var to omap dss mode\n"); | |
676 | return r; | |
677 | } | |
678 | ||
679 | for (i = 0; i < ofbi->num_overlays; ++i) { | |
680 | if ((ofbi->overlays[i]->supported_modes & mode) == 0) { | |
681 | DBG("invalid mode\n"); | |
682 | return -EINVAL; | |
683 | } | |
684 | } | |
685 | ||
686 | if (var->rotate < 0 || var->rotate > 3) | |
687 | return -EINVAL; | |
688 | ||
689 | if (check_fb_res_bounds(var)) | |
690 | return -EINVAL; | |
691 | ||
692 | if (check_fb_size(ofbi, var)) | |
693 | return -EINVAL; | |
694 | ||
695 | if (var->xres + var->xoffset > var->xres_virtual) | |
696 | var->xoffset = var->xres_virtual - var->xres; | |
697 | if (var->yres + var->yoffset > var->yres_virtual) | |
698 | var->yoffset = var->yres_virtual - var->yres; | |
699 | ||
700 | DBG("xres = %d, yres = %d, vxres = %d, vyres = %d\n", | |
701 | var->xres, var->yres, | |
702 | var->xres_virtual, var->yres_virtual); | |
703 | ||
704 | var->height = -1; | |
705 | var->width = -1; | |
706 | var->grayscale = 0; | |
707 | ||
708 | if (display && display->get_timings) { | |
709 | struct omap_video_timings timings; | |
710 | display->get_timings(display, &timings); | |
711 | ||
712 | /* pixclock in ps, the rest in pixclock */ | |
713 | var->pixclock = timings.pixel_clock != 0 ? | |
714 | KHZ2PICOS(timings.pixel_clock) : | |
715 | 0; | |
716 | var->left_margin = timings.hfp; | |
717 | var->right_margin = timings.hbp; | |
718 | var->upper_margin = timings.vfp; | |
719 | var->lower_margin = timings.vbp; | |
720 | var->hsync_len = timings.hsw; | |
721 | var->vsync_len = timings.vsw; | |
722 | } else { | |
723 | var->pixclock = 0; | |
724 | var->left_margin = 0; | |
725 | var->right_margin = 0; | |
726 | var->upper_margin = 0; | |
727 | var->lower_margin = 0; | |
728 | var->hsync_len = 0; | |
729 | var->vsync_len = 0; | |
730 | } | |
731 | ||
732 | /* TODO: get these from panel->config */ | |
733 | var->vmode = FB_VMODE_NONINTERLACED; | |
734 | var->sync = 0; | |
735 | ||
736 | return 0; | |
737 | } | |
738 | ||
739 | /* | |
740 | * --------------------------------------------------------------------------- | |
741 | * fbdev framework callbacks | |
742 | * --------------------------------------------------------------------------- | |
743 | */ | |
744 | static int omapfb_open(struct fb_info *fbi, int user) | |
745 | { | |
746 | return 0; | |
747 | } | |
748 | ||
749 | static int omapfb_release(struct fb_info *fbi, int user) | |
750 | { | |
751 | #if 0 | |
752 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
753 | struct omapfb2_device *fbdev = ofbi->fbdev; | |
754 | struct omap_dss_device *display = fb2display(fbi); | |
755 | ||
756 | DBG("Closing fb with plane index %d\n", ofbi->id); | |
757 | ||
758 | omapfb_lock(fbdev); | |
759 | ||
760 | if (display && display->get_update_mode && display->update) { | |
761 | /* XXX this update should be removed, I think. But it's | |
762 | * good for debugging */ | |
763 | if (display->get_update_mode(display) == | |
764 | OMAP_DSS_UPDATE_MANUAL) { | |
765 | u16 w, h; | |
766 | ||
767 | if (display->sync) | |
768 | display->sync(display); | |
769 | ||
770 | display->get_resolution(display, &w, &h); | |
771 | display->update(display, 0, 0, w, h); | |
772 | } | |
773 | } | |
774 | ||
775 | if (display && display->sync) | |
776 | display->sync(display); | |
777 | ||
778 | omapfb_unlock(fbdev); | |
779 | #endif | |
780 | return 0; | |
781 | } | |
782 | ||
783 | static unsigned calc_rotation_offset_dma(struct fb_var_screeninfo *var, | |
784 | struct fb_fix_screeninfo *fix, int rotation) | |
785 | { | |
786 | unsigned offset; | |
787 | ||
788 | offset = var->yoffset * fix->line_length + | |
789 | var->xoffset * (var->bits_per_pixel >> 3); | |
790 | ||
791 | return offset; | |
792 | } | |
793 | ||
794 | static unsigned calc_rotation_offset_vrfb(struct fb_var_screeninfo *var, | |
795 | struct fb_fix_screeninfo *fix, int rotation) | |
796 | { | |
797 | unsigned offset; | |
798 | ||
799 | if (rotation == FB_ROTATE_UD) | |
800 | offset = (var->yres_virtual - var->yres) * | |
801 | fix->line_length; | |
802 | else if (rotation == FB_ROTATE_CW) | |
803 | offset = (var->yres_virtual - var->yres) * | |
804 | (var->bits_per_pixel >> 3); | |
805 | else | |
806 | offset = 0; | |
807 | ||
808 | if (rotation == FB_ROTATE_UR) | |
809 | offset += var->yoffset * fix->line_length + | |
810 | var->xoffset * (var->bits_per_pixel >> 3); | |
811 | else if (rotation == FB_ROTATE_UD) | |
812 | offset -= var->yoffset * fix->line_length + | |
813 | var->xoffset * (var->bits_per_pixel >> 3); | |
814 | else if (rotation == FB_ROTATE_CW) | |
815 | offset -= var->xoffset * fix->line_length + | |
816 | var->yoffset * (var->bits_per_pixel >> 3); | |
817 | else if (rotation == FB_ROTATE_CCW) | |
818 | offset += var->xoffset * fix->line_length + | |
819 | var->yoffset * (var->bits_per_pixel >> 3); | |
820 | ||
821 | return offset; | |
822 | } | |
823 | ||
824 | ||
825 | /* setup overlay according to the fb */ | |
826 | static int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl, | |
827 | u16 posx, u16 posy, u16 outw, u16 outh) | |
828 | { | |
829 | int r = 0; | |
830 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
831 | struct fb_var_screeninfo *var = &fbi->var; | |
832 | struct fb_fix_screeninfo *fix = &fbi->fix; | |
833 | enum omap_color_mode mode = 0; | |
834 | int offset; | |
835 | u32 data_start_p; | |
836 | void __iomem *data_start_v; | |
837 | struct omap_overlay_info info; | |
838 | int xres, yres; | |
839 | int screen_width; | |
840 | int mirror; | |
841 | int rotation = var->rotate; | |
842 | int i; | |
843 | ||
844 | for (i = 0; i < ofbi->num_overlays; i++) { | |
845 | if (ovl != ofbi->overlays[i]) | |
846 | continue; | |
847 | ||
848 | rotation = (rotation + ofbi->rotation[i]) % 4; | |
849 | break; | |
850 | } | |
851 | ||
852 | DBG("setup_overlay %d, posx %d, posy %d, outw %d, outh %d\n", ofbi->id, | |
853 | posx, posy, outw, outh); | |
854 | ||
855 | if (rotation == FB_ROTATE_CW || rotation == FB_ROTATE_CCW) { | |
856 | xres = var->yres; | |
857 | yres = var->xres; | |
858 | } else { | |
859 | xres = var->xres; | |
860 | yres = var->yres; | |
861 | } | |
862 | ||
863 | ||
864 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { | |
865 | data_start_p = omapfb_get_region_rot_paddr(ofbi, rotation); | |
866 | data_start_v = NULL; | |
867 | } else { | |
868 | data_start_p = omapfb_get_region_paddr(ofbi); | |
869 | data_start_v = omapfb_get_region_vaddr(ofbi); | |
870 | } | |
871 | ||
872 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) | |
873 | offset = calc_rotation_offset_vrfb(var, fix, rotation); | |
874 | else | |
875 | offset = calc_rotation_offset_dma(var, fix, rotation); | |
876 | ||
877 | data_start_p += offset; | |
878 | data_start_v += offset; | |
879 | ||
880 | if (offset) | |
881 | DBG("offset %d, %d = %d\n", | |
882 | var->xoffset, var->yoffset, offset); | |
883 | ||
884 | DBG("paddr %x, vaddr %p\n", data_start_p, data_start_v); | |
885 | ||
886 | r = fb_mode_to_dss_mode(var, &mode); | |
887 | if (r) { | |
888 | DBG("fb_mode_to_dss_mode failed"); | |
889 | goto err; | |
890 | } | |
891 | ||
892 | switch (var->nonstd) { | |
893 | case OMAPFB_COLOR_YUV422: | |
894 | case OMAPFB_COLOR_YUY422: | |
895 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { | |
896 | screen_width = fix->line_length | |
897 | / (var->bits_per_pixel >> 2); | |
898 | break; | |
899 | } | |
900 | default: | |
901 | screen_width = fix->line_length / (var->bits_per_pixel >> 3); | |
902 | break; | |
903 | } | |
904 | ||
905 | ovl->get_overlay_info(ovl, &info); | |
906 | ||
907 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) | |
908 | mirror = 0; | |
909 | else | |
910 | mirror = ofbi->mirror; | |
911 | ||
912 | info.paddr = data_start_p; | |
913 | info.vaddr = data_start_v; | |
914 | info.screen_width = screen_width; | |
915 | info.width = xres; | |
916 | info.height = yres; | |
917 | info.color_mode = mode; | |
918 | info.rotation_type = ofbi->rotation_type; | |
919 | info.rotation = rotation; | |
920 | info.mirror = mirror; | |
921 | ||
922 | info.pos_x = posx; | |
923 | info.pos_y = posy; | |
924 | info.out_width = outw; | |
925 | info.out_height = outh; | |
926 | ||
927 | r = ovl->set_overlay_info(ovl, &info); | |
928 | if (r) { | |
929 | DBG("ovl->setup_overlay_info failed\n"); | |
930 | goto err; | |
931 | } | |
932 | ||
933 | return 0; | |
934 | ||
935 | err: | |
936 | DBG("setup_overlay failed\n"); | |
937 | return r; | |
938 | } | |
939 | ||
940 | /* apply var to the overlay */ | |
941 | int omapfb_apply_changes(struct fb_info *fbi, int init) | |
942 | { | |
943 | int r = 0; | |
944 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
945 | struct fb_var_screeninfo *var = &fbi->var; | |
946 | struct omap_overlay *ovl; | |
947 | u16 posx, posy; | |
948 | u16 outw, outh; | |
949 | int i; | |
950 | ||
951 | #ifdef DEBUG | |
952 | if (omapfb_test_pattern) | |
953 | fill_fb(fbi); | |
954 | #endif | |
955 | ||
956 | for (i = 0; i < ofbi->num_overlays; i++) { | |
957 | ovl = ofbi->overlays[i]; | |
958 | ||
959 | DBG("apply_changes, fb %d, ovl %d\n", ofbi->id, ovl->id); | |
960 | ||
961 | if (ofbi->region.size == 0) { | |
962 | /* the fb is not available. disable the overlay */ | |
963 | omapfb_overlay_enable(ovl, 0); | |
964 | if (!init && ovl->manager) | |
965 | ovl->manager->apply(ovl->manager); | |
966 | continue; | |
967 | } | |
968 | ||
969 | if (init || (ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) { | |
970 | int rotation = (var->rotate + ofbi->rotation[i]) % 4; | |
971 | if (rotation == FB_ROTATE_CW || | |
972 | rotation == FB_ROTATE_CCW) { | |
973 | outw = var->yres; | |
974 | outh = var->xres; | |
975 | } else { | |
976 | outw = var->xres; | |
977 | outh = var->yres; | |
978 | } | |
979 | } else { | |
980 | outw = ovl->info.out_width; | |
981 | outh = ovl->info.out_height; | |
982 | } | |
983 | ||
984 | if (init) { | |
985 | posx = 0; | |
986 | posy = 0; | |
987 | } else { | |
988 | posx = ovl->info.pos_x; | |
989 | posy = ovl->info.pos_y; | |
990 | } | |
991 | ||
992 | r = omapfb_setup_overlay(fbi, ovl, posx, posy, outw, outh); | |
993 | if (r) | |
994 | goto err; | |
995 | ||
996 | if (!init && ovl->manager) | |
997 | ovl->manager->apply(ovl->manager); | |
998 | } | |
999 | return 0; | |
1000 | err: | |
1001 | DBG("apply_changes failed\n"); | |
1002 | return r; | |
1003 | } | |
1004 | ||
1005 | /* checks var and eventually tweaks it to something supported, | |
1006 | * DO NOT MODIFY PAR */ | |
1007 | static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi) | |
1008 | { | |
1009 | int r; | |
1010 | ||
1011 | DBG("check_var(%d)\n", FB2OFB(fbi)->id); | |
1012 | ||
1013 | r = check_fb_var(fbi, var); | |
1014 | ||
1015 | return r; | |
1016 | } | |
1017 | ||
1018 | /* set the video mode according to info->var */ | |
1019 | static int omapfb_set_par(struct fb_info *fbi) | |
1020 | { | |
1021 | int r; | |
1022 | ||
1023 | DBG("set_par(%d)\n", FB2OFB(fbi)->id); | |
1024 | ||
1025 | set_fb_fix(fbi); | |
1026 | ||
1027 | r = setup_vrfb_rotation(fbi); | |
1028 | if (r) | |
1029 | return r; | |
1030 | ||
1031 | r = omapfb_apply_changes(fbi, 0); | |
1032 | ||
1033 | return r; | |
1034 | } | |
1035 | ||
1036 | static int omapfb_pan_display(struct fb_var_screeninfo *var, | |
1037 | struct fb_info *fbi) | |
1038 | { | |
1039 | struct fb_var_screeninfo new_var; | |
1040 | int r; | |
1041 | ||
1042 | DBG("pan_display(%d)\n", FB2OFB(fbi)->id); | |
1043 | ||
1044 | if (var->xoffset == fbi->var.xoffset && | |
1045 | var->yoffset == fbi->var.yoffset) | |
1046 | return 0; | |
1047 | ||
1048 | new_var = fbi->var; | |
1049 | new_var.xoffset = var->xoffset; | |
1050 | new_var.yoffset = var->yoffset; | |
1051 | ||
1052 | fbi->var = new_var; | |
1053 | ||
1054 | r = omapfb_apply_changes(fbi, 0); | |
1055 | ||
1056 | return r; | |
1057 | } | |
1058 | ||
1059 | static void mmap_user_open(struct vm_area_struct *vma) | |
1060 | { | |
1061 | struct omapfb_info *ofbi = (struct omapfb_info *)vma->vm_private_data; | |
1062 | ||
1063 | atomic_inc(&ofbi->map_count); | |
1064 | } | |
1065 | ||
1066 | static void mmap_user_close(struct vm_area_struct *vma) | |
1067 | { | |
1068 | struct omapfb_info *ofbi = (struct omapfb_info *)vma->vm_private_data; | |
1069 | ||
1070 | atomic_dec(&ofbi->map_count); | |
1071 | } | |
1072 | ||
1073 | static struct vm_operations_struct mmap_user_ops = { | |
1074 | .open = mmap_user_open, | |
1075 | .close = mmap_user_close, | |
1076 | }; | |
1077 | ||
1078 | static int omapfb_mmap(struct fb_info *fbi, struct vm_area_struct *vma) | |
1079 | { | |
1080 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
1081 | struct fb_fix_screeninfo *fix = &fbi->fix; | |
1082 | unsigned long off; | |
1083 | unsigned long start; | |
1084 | u32 len; | |
1085 | ||
1086 | if (vma->vm_end - vma->vm_start == 0) | |
1087 | return 0; | |
1088 | if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) | |
1089 | return -EINVAL; | |
1090 | off = vma->vm_pgoff << PAGE_SHIFT; | |
1091 | ||
1092 | start = omapfb_get_region_paddr(ofbi); | |
1093 | len = fix->smem_len; | |
1094 | if (off >= len) | |
1095 | return -EINVAL; | |
1096 | if ((vma->vm_end - vma->vm_start + off) > len) | |
1097 | return -EINVAL; | |
1098 | ||
1099 | off += start; | |
1100 | ||
1101 | DBG("user mmap region start %lx, len %d, off %lx\n", start, len, off); | |
1102 | ||
1103 | vma->vm_pgoff = off >> PAGE_SHIFT; | |
1104 | vma->vm_flags |= VM_IO | VM_RESERVED; | |
1105 | vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); | |
1106 | vma->vm_ops = &mmap_user_ops; | |
1107 | vma->vm_private_data = ofbi; | |
1108 | if (io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT, | |
1109 | vma->vm_end - vma->vm_start, vma->vm_page_prot)) | |
1110 | return -EAGAIN; | |
1111 | /* vm_ops.open won't be called for mmap itself. */ | |
1112 | atomic_inc(&ofbi->map_count); | |
1113 | return 0; | |
1114 | } | |
1115 | ||
1116 | /* Store a single color palette entry into a pseudo palette or the hardware | |
1117 | * palette if one is available. For now we support only 16bpp and thus store | |
1118 | * the entry only to the pseudo palette. | |
1119 | */ | |
1120 | static int _setcolreg(struct fb_info *fbi, u_int regno, u_int red, u_int green, | |
1121 | u_int blue, u_int transp, int update_hw_pal) | |
1122 | { | |
1123 | /*struct omapfb_info *ofbi = FB2OFB(fbi);*/ | |
1124 | /*struct omapfb2_device *fbdev = ofbi->fbdev;*/ | |
1125 | struct fb_var_screeninfo *var = &fbi->var; | |
1126 | int r = 0; | |
1127 | ||
1128 | enum omapfb_color_format mode = OMAPFB_COLOR_RGB24U; /* XXX */ | |
1129 | ||
1130 | /*switch (plane->color_mode) {*/ | |
1131 | switch (mode) { | |
1132 | case OMAPFB_COLOR_YUV422: | |
1133 | case OMAPFB_COLOR_YUV420: | |
1134 | case OMAPFB_COLOR_YUY422: | |
1135 | r = -EINVAL; | |
1136 | break; | |
1137 | case OMAPFB_COLOR_CLUT_8BPP: | |
1138 | case OMAPFB_COLOR_CLUT_4BPP: | |
1139 | case OMAPFB_COLOR_CLUT_2BPP: | |
1140 | case OMAPFB_COLOR_CLUT_1BPP: | |
1141 | /* | |
1142 | if (fbdev->ctrl->setcolreg) | |
1143 | r = fbdev->ctrl->setcolreg(regno, red, green, blue, | |
1144 | transp, update_hw_pal); | |
1145 | */ | |
1146 | /* Fallthrough */ | |
1147 | r = -EINVAL; | |
1148 | break; | |
1149 | case OMAPFB_COLOR_RGB565: | |
1150 | case OMAPFB_COLOR_RGB444: | |
1151 | case OMAPFB_COLOR_RGB24P: | |
1152 | case OMAPFB_COLOR_RGB24U: | |
1153 | if (r != 0) | |
1154 | break; | |
1155 | ||
1156 | if (regno < 0) { | |
1157 | r = -EINVAL; | |
1158 | break; | |
1159 | } | |
1160 | ||
1161 | if (regno < 16) { | |
1162 | u16 pal; | |
1163 | pal = ((red >> (16 - var->red.length)) << | |
1164 | var->red.offset) | | |
1165 | ((green >> (16 - var->green.length)) << | |
1166 | var->green.offset) | | |
1167 | (blue >> (16 - var->blue.length)); | |
1168 | ((u32 *)(fbi->pseudo_palette))[regno] = pal; | |
1169 | } | |
1170 | break; | |
1171 | default: | |
1172 | BUG(); | |
1173 | } | |
1174 | return r; | |
1175 | } | |
1176 | ||
1177 | static int omapfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, | |
1178 | u_int transp, struct fb_info *info) | |
1179 | { | |
1180 | DBG("setcolreg\n"); | |
1181 | ||
1182 | return _setcolreg(info, regno, red, green, blue, transp, 1); | |
1183 | } | |
1184 | ||
1185 | static int omapfb_setcmap(struct fb_cmap *cmap, struct fb_info *info) | |
1186 | { | |
1187 | int count, index, r; | |
1188 | u16 *red, *green, *blue, *transp; | |
1189 | u16 trans = 0xffff; | |
1190 | ||
1191 | DBG("setcmap\n"); | |
1192 | ||
1193 | red = cmap->red; | |
1194 | green = cmap->green; | |
1195 | blue = cmap->blue; | |
1196 | transp = cmap->transp; | |
1197 | index = cmap->start; | |
1198 | ||
1199 | for (count = 0; count < cmap->len; count++) { | |
1200 | if (transp) | |
1201 | trans = *transp++; | |
1202 | r = _setcolreg(info, index++, *red++, *green++, *blue++, trans, | |
1203 | count == cmap->len - 1); | |
1204 | if (r != 0) | |
1205 | return r; | |
1206 | } | |
1207 | ||
1208 | return 0; | |
1209 | } | |
1210 | ||
1211 | static int omapfb_blank(int blank, struct fb_info *fbi) | |
1212 | { | |
1213 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
1214 | struct omapfb2_device *fbdev = ofbi->fbdev; | |
1215 | struct omap_dss_device *display = fb2display(fbi); | |
1216 | int do_update = 0; | |
1217 | int r = 0; | |
1218 | ||
1219 | omapfb_lock(fbdev); | |
1220 | ||
1221 | switch (blank) { | |
1222 | case FB_BLANK_UNBLANK: | |
1223 | if (display->state != OMAP_DSS_DISPLAY_SUSPENDED) | |
1224 | goto exit; | |
1225 | ||
1226 | if (display->resume) | |
1227 | r = display->resume(display); | |
1228 | ||
446f7bff TV |
1229 | if (r == 0 && display->driver->get_update_mode && |
1230 | display->driver->get_update_mode(display) == | |
b39a982d TV |
1231 | OMAP_DSS_UPDATE_MANUAL) |
1232 | do_update = 1; | |
1233 | ||
1234 | break; | |
1235 | ||
1236 | case FB_BLANK_NORMAL: | |
1237 | /* FB_BLANK_NORMAL could be implemented. | |
1238 | * Needs DSS additions. */ | |
1239 | case FB_BLANK_VSYNC_SUSPEND: | |
1240 | case FB_BLANK_HSYNC_SUSPEND: | |
1241 | case FB_BLANK_POWERDOWN: | |
1242 | if (display->state != OMAP_DSS_DISPLAY_ACTIVE) | |
1243 | goto exit; | |
1244 | ||
1245 | if (display->suspend) | |
1246 | r = display->suspend(display); | |
1247 | ||
1248 | break; | |
1249 | ||
1250 | default: | |
1251 | r = -EINVAL; | |
1252 | } | |
1253 | ||
1254 | exit: | |
1255 | omapfb_unlock(fbdev); | |
1256 | ||
18946f62 | 1257 | if (r == 0 && do_update && display->driver->update) { |
b39a982d | 1258 | u16 w, h; |
96adcece | 1259 | display->driver->get_resolution(display, &w, &h); |
b39a982d | 1260 | |
18946f62 | 1261 | r = display->driver->update(display, 0, 0, w, h); |
b39a982d TV |
1262 | } |
1263 | ||
1264 | return r; | |
1265 | } | |
1266 | ||
1267 | #if 0 | |
1268 | /* XXX fb_read and fb_write are needed for VRFB */ | |
1269 | ssize_t omapfb_write(struct fb_info *info, const char __user *buf, | |
1270 | size_t count, loff_t *ppos) | |
1271 | { | |
1272 | DBG("omapfb_write %d, %lu\n", count, (unsigned long)*ppos); | |
1273 | /* XXX needed for VRFB */ | |
1274 | return count; | |
1275 | } | |
1276 | #endif | |
1277 | ||
1278 | static struct fb_ops omapfb_ops = { | |
1279 | .owner = THIS_MODULE, | |
1280 | .fb_open = omapfb_open, | |
1281 | .fb_release = omapfb_release, | |
1282 | .fb_fillrect = cfb_fillrect, | |
1283 | .fb_copyarea = cfb_copyarea, | |
1284 | .fb_imageblit = cfb_imageblit, | |
1285 | .fb_blank = omapfb_blank, | |
1286 | .fb_ioctl = omapfb_ioctl, | |
1287 | .fb_check_var = omapfb_check_var, | |
1288 | .fb_set_par = omapfb_set_par, | |
1289 | .fb_pan_display = omapfb_pan_display, | |
1290 | .fb_mmap = omapfb_mmap, | |
1291 | .fb_setcolreg = omapfb_setcolreg, | |
1292 | .fb_setcmap = omapfb_setcmap, | |
1293 | /*.fb_write = omapfb_write,*/ | |
1294 | }; | |
1295 | ||
1296 | static void omapfb_free_fbmem(struct fb_info *fbi) | |
1297 | { | |
1298 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
1299 | struct omapfb2_device *fbdev = ofbi->fbdev; | |
1300 | struct omapfb2_mem_region *rg; | |
1301 | ||
1302 | rg = &ofbi->region; | |
1303 | ||
1304 | if (rg->paddr) | |
1305 | if (omap_vram_free(rg->paddr, rg->size)) | |
1306 | dev_err(fbdev->dev, "VRAM FREE failed\n"); | |
1307 | ||
1308 | if (rg->vaddr) | |
1309 | iounmap(rg->vaddr); | |
1310 | ||
1311 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { | |
1312 | /* unmap the 0 angle rotation */ | |
1313 | if (rg->vrfb.vaddr[0]) { | |
1314 | iounmap(rg->vrfb.vaddr[0]); | |
1315 | omap_vrfb_release_ctx(&rg->vrfb); | |
f3a82d11 | 1316 | rg->vrfb.vaddr[0] = NULL; |
b39a982d TV |
1317 | } |
1318 | } | |
1319 | ||
1320 | rg->vaddr = NULL; | |
1321 | rg->paddr = 0; | |
1322 | rg->alloc = 0; | |
1323 | rg->size = 0; | |
1324 | } | |
1325 | ||
1326 | static void clear_fb_info(struct fb_info *fbi) | |
1327 | { | |
1328 | memset(&fbi->var, 0, sizeof(fbi->var)); | |
1329 | memset(&fbi->fix, 0, sizeof(fbi->fix)); | |
1330 | strlcpy(fbi->fix.id, MODULE_NAME, sizeof(fbi->fix.id)); | |
1331 | } | |
1332 | ||
1333 | static int omapfb_free_all_fbmem(struct omapfb2_device *fbdev) | |
1334 | { | |
1335 | int i; | |
1336 | ||
1337 | DBG("free all fbmem\n"); | |
1338 | ||
1339 | for (i = 0; i < fbdev->num_fbs; i++) { | |
1340 | struct fb_info *fbi = fbdev->fbs[i]; | |
1341 | omapfb_free_fbmem(fbi); | |
1342 | clear_fb_info(fbi); | |
1343 | } | |
1344 | ||
1345 | return 0; | |
1346 | } | |
1347 | ||
1348 | static int omapfb_alloc_fbmem(struct fb_info *fbi, unsigned long size, | |
1349 | unsigned long paddr) | |
1350 | { | |
1351 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
1352 | struct omapfb2_device *fbdev = ofbi->fbdev; | |
1353 | struct omapfb2_mem_region *rg; | |
1354 | void __iomem *vaddr; | |
1355 | int r; | |
1356 | ||
1357 | rg = &ofbi->region; | |
1358 | memset(rg, 0, sizeof(*rg)); | |
1359 | ||
1360 | size = PAGE_ALIGN(size); | |
1361 | ||
1362 | if (!paddr) { | |
1363 | DBG("allocating %lu bytes for fb %d\n", size, ofbi->id); | |
1364 | r = omap_vram_alloc(OMAP_VRAM_MEMTYPE_SDRAM, size, &paddr); | |
1365 | } else { | |
1366 | DBG("reserving %lu bytes at %lx for fb %d\n", size, paddr, | |
1367 | ofbi->id); | |
1368 | r = omap_vram_reserve(paddr, size); | |
1369 | } | |
1370 | ||
1371 | if (r) { | |
1372 | dev_err(fbdev->dev, "failed to allocate framebuffer\n"); | |
1373 | return -ENOMEM; | |
1374 | } | |
1375 | ||
1376 | if (ofbi->rotation_type != OMAP_DSS_ROT_VRFB) { | |
1377 | vaddr = ioremap_wc(paddr, size); | |
1378 | ||
1379 | if (!vaddr) { | |
1380 | dev_err(fbdev->dev, "failed to ioremap framebuffer\n"); | |
1381 | omap_vram_free(paddr, size); | |
1382 | return -ENOMEM; | |
1383 | } | |
1384 | ||
1385 | DBG("allocated VRAM paddr %lx, vaddr %p\n", paddr, vaddr); | |
1386 | } else { | |
1387 | r = omap_vrfb_request_ctx(&rg->vrfb); | |
1388 | if (r) { | |
1389 | dev_err(fbdev->dev, "vrfb create ctx failed\n"); | |
1390 | return r; | |
1391 | } | |
1392 | ||
1393 | vaddr = NULL; | |
1394 | } | |
1395 | ||
1396 | rg->paddr = paddr; | |
1397 | rg->vaddr = vaddr; | |
1398 | rg->size = size; | |
1399 | rg->alloc = 1; | |
1400 | ||
1401 | return 0; | |
1402 | } | |
1403 | ||
1404 | /* allocate fbmem using display resolution as reference */ | |
1405 | static int omapfb_alloc_fbmem_display(struct fb_info *fbi, unsigned long size, | |
1406 | unsigned long paddr) | |
1407 | { | |
1408 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
a2699504 | 1409 | struct omapfb2_device *fbdev = ofbi->fbdev; |
b39a982d TV |
1410 | struct omap_dss_device *display; |
1411 | int bytespp; | |
1412 | ||
1413 | display = fb2display(fbi); | |
1414 | ||
1415 | if (!display) | |
1416 | return 0; | |
1417 | ||
a2699504 | 1418 | switch (omapfb_get_recommended_bpp(fbdev, display)) { |
b39a982d TV |
1419 | case 16: |
1420 | bytespp = 2; | |
1421 | break; | |
1422 | case 24: | |
1423 | bytespp = 4; | |
1424 | break; | |
1425 | default: | |
1426 | bytespp = 4; | |
1427 | break; | |
1428 | } | |
1429 | ||
1430 | if (!size) { | |
1431 | u16 w, h; | |
1432 | ||
96adcece | 1433 | display->driver->get_resolution(display, &w, &h); |
b39a982d TV |
1434 | |
1435 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { | |
1436 | size = max(omap_vrfb_min_phys_size(w, h, bytespp), | |
1437 | omap_vrfb_min_phys_size(h, w, bytespp)); | |
1438 | ||
1439 | DBG("adjusting fb mem size for VRFB, %u -> %lu\n", | |
1440 | w * h * bytespp, size); | |
1441 | } else { | |
1442 | size = w * h * bytespp; | |
1443 | } | |
1444 | } | |
1445 | ||
1446 | if (!size) | |
1447 | return 0; | |
1448 | ||
1449 | return omapfb_alloc_fbmem(fbi, size, paddr); | |
1450 | } | |
1451 | ||
1452 | static enum omap_color_mode fb_format_to_dss_mode(enum omapfb_color_format fmt) | |
1453 | { | |
1454 | enum omap_color_mode mode; | |
1455 | ||
1456 | switch (fmt) { | |
1457 | case OMAPFB_COLOR_RGB565: | |
1458 | mode = OMAP_DSS_COLOR_RGB16; | |
1459 | break; | |
1460 | case OMAPFB_COLOR_YUV422: | |
1461 | mode = OMAP_DSS_COLOR_YUV2; | |
1462 | break; | |
1463 | case OMAPFB_COLOR_CLUT_8BPP: | |
1464 | mode = OMAP_DSS_COLOR_CLUT8; | |
1465 | break; | |
1466 | case OMAPFB_COLOR_CLUT_4BPP: | |
1467 | mode = OMAP_DSS_COLOR_CLUT4; | |
1468 | break; | |
1469 | case OMAPFB_COLOR_CLUT_2BPP: | |
1470 | mode = OMAP_DSS_COLOR_CLUT2; | |
1471 | break; | |
1472 | case OMAPFB_COLOR_CLUT_1BPP: | |
1473 | mode = OMAP_DSS_COLOR_CLUT1; | |
1474 | break; | |
1475 | case OMAPFB_COLOR_RGB444: | |
1476 | mode = OMAP_DSS_COLOR_RGB12U; | |
1477 | break; | |
1478 | case OMAPFB_COLOR_YUY422: | |
1479 | mode = OMAP_DSS_COLOR_UYVY; | |
1480 | break; | |
1481 | case OMAPFB_COLOR_ARGB16: | |
1482 | mode = OMAP_DSS_COLOR_ARGB16; | |
1483 | break; | |
1484 | case OMAPFB_COLOR_RGB24U: | |
1485 | mode = OMAP_DSS_COLOR_RGB24U; | |
1486 | break; | |
1487 | case OMAPFB_COLOR_RGB24P: | |
1488 | mode = OMAP_DSS_COLOR_RGB24P; | |
1489 | break; | |
1490 | case OMAPFB_COLOR_ARGB32: | |
1491 | mode = OMAP_DSS_COLOR_ARGB32; | |
1492 | break; | |
1493 | case OMAPFB_COLOR_RGBA32: | |
1494 | mode = OMAP_DSS_COLOR_RGBA32; | |
1495 | break; | |
1496 | case OMAPFB_COLOR_RGBX32: | |
1497 | mode = OMAP_DSS_COLOR_RGBX32; | |
1498 | break; | |
1499 | default: | |
1500 | mode = -EINVAL; | |
1501 | } | |
1502 | ||
1503 | return mode; | |
1504 | } | |
1505 | ||
1506 | static int omapfb_parse_vram_param(const char *param, int max_entries, | |
1507 | unsigned long *sizes, unsigned long *paddrs) | |
1508 | { | |
1509 | int fbnum; | |
1510 | unsigned long size; | |
1511 | unsigned long paddr = 0; | |
1512 | char *p, *start; | |
1513 | ||
1514 | start = (char *)param; | |
1515 | ||
1516 | while (1) { | |
1517 | p = start; | |
1518 | ||
1519 | fbnum = simple_strtoul(p, &p, 10); | |
1520 | ||
1521 | if (p == param) | |
1522 | return -EINVAL; | |
1523 | ||
1524 | if (*p != ':') | |
1525 | return -EINVAL; | |
1526 | ||
1527 | if (fbnum >= max_entries) | |
1528 | return -EINVAL; | |
1529 | ||
1530 | size = memparse(p + 1, &p); | |
1531 | ||
1532 | if (!size) | |
1533 | return -EINVAL; | |
1534 | ||
1535 | paddr = 0; | |
1536 | ||
1537 | if (*p == '@') { | |
1538 | paddr = simple_strtoul(p + 1, &p, 16); | |
1539 | ||
1540 | if (!paddr) | |
1541 | return -EINVAL; | |
1542 | ||
1543 | } | |
1544 | ||
1545 | paddrs[fbnum] = paddr; | |
1546 | sizes[fbnum] = size; | |
1547 | ||
1548 | if (*p == 0) | |
1549 | break; | |
1550 | ||
1551 | if (*p != ',') | |
1552 | return -EINVAL; | |
1553 | ||
1554 | ++p; | |
1555 | ||
1556 | start = p; | |
1557 | } | |
1558 | ||
1559 | return 0; | |
1560 | } | |
1561 | ||
1562 | static int omapfb_allocate_all_fbs(struct omapfb2_device *fbdev) | |
1563 | { | |
1564 | int i, r; | |
1565 | unsigned long vram_sizes[10]; | |
1566 | unsigned long vram_paddrs[10]; | |
1567 | ||
1568 | memset(&vram_sizes, 0, sizeof(vram_sizes)); | |
1569 | memset(&vram_paddrs, 0, sizeof(vram_paddrs)); | |
1570 | ||
1571 | if (def_vram && omapfb_parse_vram_param(def_vram, 10, | |
1572 | vram_sizes, vram_paddrs)) { | |
1573 | dev_err(fbdev->dev, "failed to parse vram parameter\n"); | |
1574 | ||
1575 | memset(&vram_sizes, 0, sizeof(vram_sizes)); | |
1576 | memset(&vram_paddrs, 0, sizeof(vram_paddrs)); | |
1577 | } | |
1578 | ||
1579 | if (fbdev->dev->platform_data) { | |
1580 | struct omapfb_platform_data *opd; | |
1581 | opd = fbdev->dev->platform_data; | |
1582 | for (i = 0; i < opd->mem_desc.region_cnt; ++i) { | |
1583 | if (!vram_sizes[i]) { | |
1584 | unsigned long size; | |
1585 | unsigned long paddr; | |
1586 | ||
1587 | size = opd->mem_desc.region[i].size; | |
1588 | paddr = opd->mem_desc.region[i].paddr; | |
1589 | ||
1590 | vram_sizes[i] = size; | |
1591 | vram_paddrs[i] = paddr; | |
1592 | } | |
1593 | } | |
1594 | } | |
1595 | ||
1596 | for (i = 0; i < fbdev->num_fbs; i++) { | |
1597 | /* allocate memory automatically only for fb0, or if | |
1598 | * excplicitly defined with vram or plat data option */ | |
1599 | if (i == 0 || vram_sizes[i] != 0) { | |
1600 | r = omapfb_alloc_fbmem_display(fbdev->fbs[i], | |
1601 | vram_sizes[i], vram_paddrs[i]); | |
1602 | ||
1603 | if (r) | |
1604 | return r; | |
1605 | } | |
1606 | } | |
1607 | ||
1608 | for (i = 0; i < fbdev->num_fbs; i++) { | |
1609 | struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]); | |
1610 | struct omapfb2_mem_region *rg; | |
1611 | rg = &ofbi->region; | |
1612 | ||
1613 | DBG("region%d phys %08x virt %p size=%lu\n", | |
1614 | i, | |
1615 | rg->paddr, | |
1616 | rg->vaddr, | |
1617 | rg->size); | |
1618 | } | |
1619 | ||
1620 | return 0; | |
1621 | } | |
1622 | ||
1623 | int omapfb_realloc_fbmem(struct fb_info *fbi, unsigned long size, int type) | |
1624 | { | |
1625 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
1626 | struct omapfb2_device *fbdev = ofbi->fbdev; | |
1627 | struct omap_dss_device *display = fb2display(fbi); | |
1628 | struct omapfb2_mem_region *rg = &ofbi->region; | |
1629 | unsigned long old_size = rg->size; | |
1630 | unsigned long old_paddr = rg->paddr; | |
1631 | int old_type = rg->type; | |
1632 | int r; | |
1633 | ||
1634 | if (type > OMAPFB_MEMTYPE_MAX) | |
1635 | return -EINVAL; | |
1636 | ||
1637 | size = PAGE_ALIGN(size); | |
1638 | ||
1639 | if (old_size == size && old_type == type) | |
1640 | return 0; | |
1641 | ||
18946f62 TV |
1642 | if (display && display->driver->sync) |
1643 | display->driver->sync(display); | |
b39a982d TV |
1644 | |
1645 | omapfb_free_fbmem(fbi); | |
1646 | ||
1647 | if (size == 0) { | |
1648 | clear_fb_info(fbi); | |
1649 | return 0; | |
1650 | } | |
1651 | ||
1652 | r = omapfb_alloc_fbmem(fbi, size, 0); | |
1653 | ||
1654 | if (r) { | |
1655 | if (old_size) | |
1656 | omapfb_alloc_fbmem(fbi, old_size, old_paddr); | |
1657 | ||
1658 | if (rg->size == 0) | |
1659 | clear_fb_info(fbi); | |
1660 | ||
1661 | return r; | |
1662 | } | |
1663 | ||
1664 | if (old_size == size) | |
1665 | return 0; | |
1666 | ||
1667 | if (old_size == 0) { | |
1668 | DBG("initializing fb %d\n", ofbi->id); | |
1669 | r = omapfb_fb_init(fbdev, fbi); | |
1670 | if (r) { | |
1671 | DBG("omapfb_fb_init failed\n"); | |
1672 | goto err; | |
1673 | } | |
1674 | r = omapfb_apply_changes(fbi, 1); | |
1675 | if (r) { | |
1676 | DBG("omapfb_apply_changes failed\n"); | |
1677 | goto err; | |
1678 | } | |
1679 | } else { | |
1680 | struct fb_var_screeninfo new_var; | |
1681 | memcpy(&new_var, &fbi->var, sizeof(new_var)); | |
1682 | r = check_fb_var(fbi, &new_var); | |
1683 | if (r) | |
1684 | goto err; | |
1685 | memcpy(&fbi->var, &new_var, sizeof(fbi->var)); | |
1686 | set_fb_fix(fbi); | |
1687 | r = setup_vrfb_rotation(fbi); | |
1688 | if (r) | |
1689 | goto err; | |
1690 | } | |
1691 | ||
1692 | return 0; | |
1693 | err: | |
1694 | omapfb_free_fbmem(fbi); | |
1695 | clear_fb_info(fbi); | |
1696 | return r; | |
1697 | } | |
1698 | ||
1699 | /* initialize fb_info, var, fix to something sane based on the display */ | |
1700 | static int omapfb_fb_init(struct omapfb2_device *fbdev, struct fb_info *fbi) | |
1701 | { | |
1702 | struct fb_var_screeninfo *var = &fbi->var; | |
1703 | struct omap_dss_device *display = fb2display(fbi); | |
1704 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
1705 | int r = 0; | |
1706 | ||
1707 | fbi->fbops = &omapfb_ops; | |
1708 | fbi->flags = FBINFO_FLAG_DEFAULT; | |
1709 | fbi->pseudo_palette = fbdev->pseudo_palette; | |
1710 | ||
1711 | if (ofbi->region.size == 0) { | |
1712 | clear_fb_info(fbi); | |
1713 | return 0; | |
1714 | } | |
1715 | ||
1716 | var->nonstd = 0; | |
1717 | var->bits_per_pixel = 0; | |
1718 | ||
1719 | var->rotate = def_rotate; | |
1720 | ||
1721 | /* | |
1722 | * Check if there is a default color format set in the board file, | |
1723 | * and use this format instead the default deducted from the | |
1724 | * display bpp. | |
1725 | */ | |
1726 | if (fbdev->dev->platform_data) { | |
1727 | struct omapfb_platform_data *opd; | |
1728 | int id = ofbi->id; | |
1729 | ||
1730 | opd = fbdev->dev->platform_data; | |
1731 | if (opd->mem_desc.region[id].format_used) { | |
1732 | enum omap_color_mode mode; | |
1733 | enum omapfb_color_format format; | |
1734 | ||
1735 | format = opd->mem_desc.region[id].format; | |
1736 | mode = fb_format_to_dss_mode(format); | |
1737 | if (mode < 0) { | |
1738 | r = mode; | |
1739 | goto err; | |
1740 | } | |
1741 | r = dss_mode_to_fb_mode(mode, var); | |
1742 | if (r < 0) | |
1743 | goto err; | |
1744 | } | |
1745 | } | |
1746 | ||
1747 | if (display) { | |
1748 | u16 w, h; | |
1749 | int rotation = (var->rotate + ofbi->rotation[0]) % 4; | |
1750 | ||
96adcece | 1751 | display->driver->get_resolution(display, &w, &h); |
b39a982d TV |
1752 | |
1753 | if (rotation == FB_ROTATE_CW || | |
1754 | rotation == FB_ROTATE_CCW) { | |
1755 | var->xres = h; | |
1756 | var->yres = w; | |
1757 | } else { | |
1758 | var->xres = w; | |
1759 | var->yres = h; | |
1760 | } | |
1761 | ||
1762 | var->xres_virtual = var->xres; | |
1763 | var->yres_virtual = var->yres; | |
1764 | ||
1765 | if (!var->bits_per_pixel) { | |
a2699504 | 1766 | switch (omapfb_get_recommended_bpp(fbdev, display)) { |
b39a982d TV |
1767 | case 16: |
1768 | var->bits_per_pixel = 16; | |
1769 | break; | |
1770 | case 24: | |
1771 | var->bits_per_pixel = 32; | |
1772 | break; | |
1773 | default: | |
1774 | dev_err(fbdev->dev, "illegal display " | |
1775 | "bpp\n"); | |
1776 | return -EINVAL; | |
1777 | } | |
1778 | } | |
1779 | } else { | |
1780 | /* if there's no display, let's just guess some basic values */ | |
1781 | var->xres = 320; | |
1782 | var->yres = 240; | |
1783 | var->xres_virtual = var->xres; | |
1784 | var->yres_virtual = var->yres; | |
1785 | if (!var->bits_per_pixel) | |
1786 | var->bits_per_pixel = 16; | |
1787 | } | |
1788 | ||
1789 | r = check_fb_var(fbi, var); | |
1790 | if (r) | |
1791 | goto err; | |
1792 | ||
1793 | set_fb_fix(fbi); | |
1794 | r = setup_vrfb_rotation(fbi); | |
1795 | if (r) | |
1796 | goto err; | |
1797 | ||
1798 | r = fb_alloc_cmap(&fbi->cmap, 256, 0); | |
1799 | if (r) | |
1800 | dev_err(fbdev->dev, "unable to allocate color map memory\n"); | |
1801 | ||
1802 | err: | |
1803 | return r; | |
1804 | } | |
1805 | ||
1806 | static void fbinfo_cleanup(struct omapfb2_device *fbdev, struct fb_info *fbi) | |
1807 | { | |
1808 | fb_dealloc_cmap(&fbi->cmap); | |
1809 | } | |
1810 | ||
1811 | ||
1812 | static void omapfb_free_resources(struct omapfb2_device *fbdev) | |
1813 | { | |
1814 | int i; | |
1815 | ||
1816 | DBG("free_resources\n"); | |
1817 | ||
1818 | if (fbdev == NULL) | |
1819 | return; | |
1820 | ||
1821 | for (i = 0; i < fbdev->num_fbs; i++) | |
1822 | unregister_framebuffer(fbdev->fbs[i]); | |
1823 | ||
1824 | /* free the reserved fbmem */ | |
1825 | omapfb_free_all_fbmem(fbdev); | |
1826 | ||
1827 | for (i = 0; i < fbdev->num_fbs; i++) { | |
1828 | fbinfo_cleanup(fbdev, fbdev->fbs[i]); | |
1829 | framebuffer_release(fbdev->fbs[i]); | |
1830 | } | |
1831 | ||
1832 | for (i = 0; i < fbdev->num_displays; i++) { | |
1833 | if (fbdev->displays[i]->state != OMAP_DSS_DISPLAY_DISABLED) | |
1834 | fbdev->displays[i]->disable(fbdev->displays[i]); | |
1835 | ||
1836 | omap_dss_put_device(fbdev->displays[i]); | |
1837 | } | |
1838 | ||
1839 | dev_set_drvdata(fbdev->dev, NULL); | |
1840 | kfree(fbdev); | |
1841 | } | |
1842 | ||
1843 | static int omapfb_create_framebuffers(struct omapfb2_device *fbdev) | |
1844 | { | |
1845 | int r, i; | |
1846 | ||
1847 | fbdev->num_fbs = 0; | |
1848 | ||
1849 | DBG("create %d framebuffers\n", CONFIG_FB_OMAP2_NUM_FBS); | |
1850 | ||
1851 | /* allocate fb_infos */ | |
1852 | for (i = 0; i < CONFIG_FB_OMAP2_NUM_FBS; i++) { | |
1853 | struct fb_info *fbi; | |
1854 | struct omapfb_info *ofbi; | |
1855 | ||
1856 | fbi = framebuffer_alloc(sizeof(struct omapfb_info), | |
1857 | fbdev->dev); | |
1858 | ||
1859 | if (fbi == NULL) { | |
1860 | dev_err(fbdev->dev, | |
1861 | "unable to allocate memory for plane info\n"); | |
1862 | return -ENOMEM; | |
1863 | } | |
1864 | ||
1865 | clear_fb_info(fbi); | |
1866 | ||
1867 | fbdev->fbs[i] = fbi; | |
1868 | ||
1869 | ofbi = FB2OFB(fbi); | |
1870 | ofbi->fbdev = fbdev; | |
1871 | ofbi->id = i; | |
1872 | ||
1873 | /* assign these early, so that fb alloc can use them */ | |
1874 | ofbi->rotation_type = def_vrfb ? OMAP_DSS_ROT_VRFB : | |
1875 | OMAP_DSS_ROT_DMA; | |
1876 | ofbi->mirror = def_mirror; | |
1877 | ||
1878 | fbdev->num_fbs++; | |
1879 | } | |
1880 | ||
1881 | DBG("fb_infos allocated\n"); | |
1882 | ||
1883 | /* assign overlays for the fbs */ | |
1884 | for (i = 0; i < min(fbdev->num_fbs, fbdev->num_overlays); i++) { | |
1885 | struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]); | |
1886 | ||
1887 | ofbi->overlays[0] = fbdev->overlays[i]; | |
1888 | ofbi->num_overlays = 1; | |
1889 | } | |
1890 | ||
1891 | /* allocate fb memories */ | |
1892 | r = omapfb_allocate_all_fbs(fbdev); | |
1893 | if (r) { | |
1894 | dev_err(fbdev->dev, "failed to allocate fbmem\n"); | |
1895 | return r; | |
1896 | } | |
1897 | ||
1898 | DBG("fbmems allocated\n"); | |
1899 | ||
1900 | /* setup fb_infos */ | |
1901 | for (i = 0; i < fbdev->num_fbs; i++) { | |
1902 | r = omapfb_fb_init(fbdev, fbdev->fbs[i]); | |
1903 | if (r) { | |
1904 | dev_err(fbdev->dev, "failed to setup fb_info\n"); | |
1905 | return r; | |
1906 | } | |
1907 | } | |
1908 | ||
1909 | DBG("fb_infos initialized\n"); | |
1910 | ||
1911 | for (i = 0; i < fbdev->num_fbs; i++) { | |
1912 | r = register_framebuffer(fbdev->fbs[i]); | |
1913 | if (r != 0) { | |
1914 | dev_err(fbdev->dev, | |
1915 | "registering framebuffer %d failed\n", i); | |
1916 | return r; | |
1917 | } | |
1918 | } | |
1919 | ||
1920 | DBG("framebuffers registered\n"); | |
1921 | ||
1922 | for (i = 0; i < fbdev->num_fbs; i++) { | |
1923 | r = omapfb_apply_changes(fbdev->fbs[i], 1); | |
1924 | if (r) { | |
1925 | dev_err(fbdev->dev, "failed to change mode\n"); | |
1926 | return r; | |
1927 | } | |
1928 | } | |
1929 | ||
1930 | DBG("create sysfs for fbs\n"); | |
1931 | r = omapfb_create_sysfs(fbdev); | |
1932 | if (r) { | |
1933 | dev_err(fbdev->dev, "failed to create sysfs entries\n"); | |
1934 | return r; | |
1935 | } | |
1936 | ||
1937 | /* Enable fb0 */ | |
1938 | if (fbdev->num_fbs > 0) { | |
1939 | struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[0]); | |
1940 | ||
1941 | if (ofbi->num_overlays > 0) { | |
1942 | struct omap_overlay *ovl = ofbi->overlays[0]; | |
1943 | ||
1944 | r = omapfb_overlay_enable(ovl, 1); | |
1945 | ||
1946 | if (r) { | |
1947 | dev_err(fbdev->dev, | |
1948 | "failed to enable overlay\n"); | |
1949 | return r; | |
1950 | } | |
1951 | } | |
1952 | } | |
1953 | ||
1954 | DBG("create_framebuffers done\n"); | |
1955 | ||
1956 | return 0; | |
1957 | } | |
1958 | ||
1959 | static int omapfb_mode_to_timings(const char *mode_str, | |
1960 | struct omap_video_timings *timings, u8 *bpp) | |
1961 | { | |
1962 | struct fb_info fbi; | |
1963 | struct fb_var_screeninfo var; | |
1964 | struct fb_ops fbops; | |
1965 | int r; | |
1966 | ||
1967 | #ifdef CONFIG_OMAP2_DSS_VENC | |
1968 | if (strcmp(mode_str, "pal") == 0) { | |
1969 | *timings = omap_dss_pal_timings; | |
1970 | *bpp = 0; | |
1971 | return 0; | |
1972 | } else if (strcmp(mode_str, "ntsc") == 0) { | |
1973 | *timings = omap_dss_ntsc_timings; | |
1974 | *bpp = 0; | |
1975 | return 0; | |
1976 | } | |
1977 | #endif | |
1978 | ||
1979 | /* this is quite a hack, but I wanted to use the modedb and for | |
1980 | * that we need fb_info and var, so we create dummy ones */ | |
1981 | ||
1982 | memset(&fbi, 0, sizeof(fbi)); | |
1983 | memset(&var, 0, sizeof(var)); | |
1984 | memset(&fbops, 0, sizeof(fbops)); | |
1985 | fbi.fbops = &fbops; | |
1986 | ||
1987 | r = fb_find_mode(&var, &fbi, mode_str, NULL, 0, NULL, 24); | |
1988 | ||
1989 | if (r != 0) { | |
1990 | timings->pixel_clock = PICOS2KHZ(var.pixclock); | |
1991 | timings->hfp = var.left_margin; | |
1992 | timings->hbp = var.right_margin; | |
1993 | timings->vfp = var.upper_margin; | |
1994 | timings->vbp = var.lower_margin; | |
1995 | timings->hsw = var.hsync_len; | |
1996 | timings->vsw = var.vsync_len; | |
1997 | timings->x_res = var.xres; | |
1998 | timings->y_res = var.yres; | |
1999 | ||
2000 | switch (var.bits_per_pixel) { | |
2001 | case 16: | |
2002 | *bpp = 16; | |
2003 | break; | |
2004 | case 24: | |
2005 | case 32: | |
2006 | default: | |
2007 | *bpp = 24; | |
2008 | break; | |
2009 | } | |
2010 | ||
2011 | return 0; | |
2012 | } else { | |
2013 | return -EINVAL; | |
2014 | } | |
2015 | } | |
2016 | ||
a2699504 TV |
2017 | static int omapfb_set_def_mode(struct omapfb2_device *fbdev, |
2018 | struct omap_dss_device *display, char *mode_str) | |
b39a982d TV |
2019 | { |
2020 | int r; | |
2021 | u8 bpp; | |
2022 | struct omap_video_timings timings; | |
2023 | ||
2024 | r = omapfb_mode_to_timings(mode_str, &timings, &bpp); | |
2025 | if (r) | |
2026 | return r; | |
2027 | ||
a2699504 TV |
2028 | fbdev->bpp_overrides[fbdev->num_bpp_overrides].dssdev = display; |
2029 | fbdev->bpp_overrides[fbdev->num_bpp_overrides].bpp = bpp; | |
2030 | ++fbdev->num_bpp_overrides; | |
b39a982d TV |
2031 | |
2032 | if (!display->check_timings || !display->set_timings) | |
2033 | return -EINVAL; | |
2034 | ||
2035 | r = display->check_timings(display, &timings); | |
2036 | if (r) | |
2037 | return r; | |
2038 | ||
2039 | display->set_timings(display, &timings); | |
2040 | ||
2041 | return 0; | |
2042 | } | |
2043 | ||
a2699504 TV |
2044 | static int omapfb_get_recommended_bpp(struct omapfb2_device *fbdev, |
2045 | struct omap_dss_device *dssdev) | |
2046 | { | |
2047 | int i; | |
2048 | ||
2049 | BUG_ON(dssdev->driver->get_recommended_bpp == NULL); | |
2050 | ||
2051 | for (i = 0; i < fbdev->num_bpp_overrides; ++i) { | |
2052 | if (dssdev == fbdev->bpp_overrides[i].dssdev) | |
2053 | return fbdev->bpp_overrides[i].bpp; | |
2054 | } | |
2055 | ||
2056 | return dssdev->driver->get_recommended_bpp(dssdev); | |
2057 | } | |
2058 | ||
b39a982d TV |
2059 | static int omapfb_parse_def_modes(struct omapfb2_device *fbdev) |
2060 | { | |
2061 | char *str, *options, *this_opt; | |
2062 | int r = 0; | |
2063 | ||
2064 | str = kmalloc(strlen(def_mode) + 1, GFP_KERNEL); | |
2065 | strcpy(str, def_mode); | |
2066 | options = str; | |
2067 | ||
2068 | while (!r && (this_opt = strsep(&options, ",")) != NULL) { | |
2069 | char *p, *display_str, *mode_str; | |
2070 | struct omap_dss_device *display; | |
2071 | int i; | |
2072 | ||
2073 | p = strchr(this_opt, ':'); | |
2074 | if (!p) { | |
2075 | r = -EINVAL; | |
2076 | break; | |
2077 | } | |
2078 | ||
2079 | *p = 0; | |
2080 | display_str = this_opt; | |
2081 | mode_str = p + 1; | |
2082 | ||
2083 | display = NULL; | |
2084 | for (i = 0; i < fbdev->num_displays; ++i) { | |
2085 | if (strcmp(fbdev->displays[i]->name, | |
2086 | display_str) == 0) { | |
2087 | display = fbdev->displays[i]; | |
2088 | break; | |
2089 | } | |
2090 | } | |
2091 | ||
2092 | if (!display) { | |
2093 | r = -EINVAL; | |
2094 | break; | |
2095 | } | |
2096 | ||
a2699504 | 2097 | r = omapfb_set_def_mode(fbdev, display, mode_str); |
b39a982d TV |
2098 | if (r) |
2099 | break; | |
2100 | } | |
2101 | ||
2102 | kfree(str); | |
2103 | ||
2104 | return r; | |
2105 | } | |
2106 | ||
2107 | static int omapfb_probe(struct platform_device *pdev) | |
2108 | { | |
2109 | struct omapfb2_device *fbdev = NULL; | |
2110 | int r = 0; | |
2111 | int i; | |
2112 | struct omap_overlay *ovl; | |
2113 | struct omap_dss_device *def_display; | |
2114 | struct omap_dss_device *dssdev; | |
2115 | ||
2116 | DBG("omapfb_probe\n"); | |
2117 | ||
2118 | if (pdev->num_resources != 0) { | |
2119 | dev_err(&pdev->dev, "probed for an unknown device\n"); | |
2120 | r = -ENODEV; | |
2121 | goto err0; | |
2122 | } | |
2123 | ||
2124 | fbdev = kzalloc(sizeof(struct omapfb2_device), GFP_KERNEL); | |
2125 | if (fbdev == NULL) { | |
2126 | r = -ENOMEM; | |
2127 | goto err0; | |
2128 | } | |
2129 | ||
2130 | mutex_init(&fbdev->mtx); | |
2131 | ||
2132 | fbdev->dev = &pdev->dev; | |
2133 | platform_set_drvdata(pdev, fbdev); | |
2134 | ||
b3f91eb8 | 2135 | r = 0; |
b39a982d TV |
2136 | fbdev->num_displays = 0; |
2137 | dssdev = NULL; | |
2138 | for_each_dss_dev(dssdev) { | |
2139 | omap_dss_get_device(dssdev); | |
b3f91eb8 | 2140 | |
807a7515 TV |
2141 | if (!dssdev->driver) { |
2142 | dev_err(&pdev->dev, "no driver for display\n"); | |
b3f91eb8 | 2143 | r = -ENODEV; |
807a7515 | 2144 | } |
b3f91eb8 | 2145 | |
b39a982d TV |
2146 | fbdev->displays[fbdev->num_displays++] = dssdev; |
2147 | } | |
2148 | ||
b3f91eb8 TV |
2149 | if (r) |
2150 | goto cleanup; | |
2151 | ||
b39a982d TV |
2152 | if (fbdev->num_displays == 0) { |
2153 | dev_err(&pdev->dev, "no displays\n"); | |
2154 | r = -EINVAL; | |
2155 | goto cleanup; | |
2156 | } | |
2157 | ||
2158 | fbdev->num_overlays = omap_dss_get_num_overlays(); | |
2159 | for (i = 0; i < fbdev->num_overlays; i++) | |
2160 | fbdev->overlays[i] = omap_dss_get_overlay(i); | |
2161 | ||
2162 | fbdev->num_managers = omap_dss_get_num_overlay_managers(); | |
2163 | for (i = 0; i < fbdev->num_managers; i++) | |
2164 | fbdev->managers[i] = omap_dss_get_overlay_manager(i); | |
2165 | ||
2166 | if (def_mode && strlen(def_mode) > 0) { | |
2167 | if (omapfb_parse_def_modes(fbdev)) | |
2168 | dev_warn(&pdev->dev, "cannot parse default modes\n"); | |
2169 | } | |
2170 | ||
2171 | r = omapfb_create_framebuffers(fbdev); | |
2172 | if (r) | |
2173 | goto cleanup; | |
2174 | ||
2175 | for (i = 0; i < fbdev->num_managers; i++) { | |
2176 | struct omap_overlay_manager *mgr; | |
2177 | mgr = fbdev->managers[i]; | |
2178 | r = mgr->apply(mgr); | |
2179 | if (r) | |
2180 | dev_warn(fbdev->dev, "failed to apply dispc config\n"); | |
2181 | } | |
2182 | ||
2183 | DBG("mgr->apply'ed\n"); | |
2184 | ||
2185 | /* gfx overlay should be the default one. find a display | |
2186 | * connected to that, and use it as default display */ | |
2187 | ovl = omap_dss_get_overlay(0); | |
2188 | if (ovl->manager && ovl->manager->device) { | |
2189 | def_display = ovl->manager->device; | |
2190 | } else { | |
2191 | dev_warn(&pdev->dev, "cannot find default display\n"); | |
2192 | def_display = NULL; | |
2193 | } | |
2194 | ||
2195 | if (def_display) { | |
446f7bff | 2196 | struct omap_dss_driver *dssdrv = def_display->driver; |
b39a982d TV |
2197 | #ifndef CONFIG_FB_OMAP2_FORCE_AUTO_UPDATE |
2198 | u16 w, h; | |
2199 | #endif | |
2200 | r = def_display->enable(def_display); | |
6d2e0bd6 | 2201 | if (r) { |
b39a982d TV |
2202 | dev_warn(fbdev->dev, "Failed to enable display '%s'\n", |
2203 | def_display->name); | |
6d2e0bd6 TV |
2204 | goto cleanup; |
2205 | } | |
b39a982d TV |
2206 | |
2207 | /* set the update mode */ | |
2208 | if (def_display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) { | |
2209 | #ifdef CONFIG_FB_OMAP2_FORCE_AUTO_UPDATE | |
446f7bff TV |
2210 | if (dssdrv->enable_te) |
2211 | dssdrv->enable_te(def_display, 1); | |
2212 | if (dssdrv->set_update_mode) | |
2213 | dssdrv->set_update_mode(def_display, | |
b39a982d TV |
2214 | OMAP_DSS_UPDATE_AUTO); |
2215 | #else /* MANUAL_UPDATE */ | |
446f7bff TV |
2216 | if (dssdrv->enable_te) |
2217 | dssdrv->enable_te(def_display, 0); | |
2218 | if (dssdrv->set_update_mode) | |
2219 | dssdrv->set_update_mode(def_display, | |
b39a982d TV |
2220 | OMAP_DSS_UPDATE_MANUAL); |
2221 | ||
446f7bff | 2222 | dssdrv->get_resolution(def_display, |
96adcece | 2223 | &w, &h); |
18946f62 | 2224 | def_display->driver->update(def_display, 0, 0, w, h); |
b39a982d TV |
2225 | #endif |
2226 | } else { | |
446f7bff TV |
2227 | if (dssdrv->set_update_mode) |
2228 | dssdrv->set_update_mode(def_display, | |
b39a982d TV |
2229 | OMAP_DSS_UPDATE_AUTO); |
2230 | } | |
2231 | } | |
2232 | ||
2233 | return 0; | |
2234 | ||
2235 | cleanup: | |
2236 | omapfb_free_resources(fbdev); | |
2237 | err0: | |
2238 | dev_err(&pdev->dev, "failed to setup omapfb\n"); | |
2239 | return r; | |
2240 | } | |
2241 | ||
2242 | static int omapfb_remove(struct platform_device *pdev) | |
2243 | { | |
2244 | struct omapfb2_device *fbdev = platform_get_drvdata(pdev); | |
2245 | ||
2246 | /* FIXME: wait till completion of pending events */ | |
2247 | ||
2248 | omapfb_remove_sysfs(fbdev); | |
2249 | ||
2250 | omapfb_free_resources(fbdev); | |
2251 | ||
2252 | return 0; | |
2253 | } | |
2254 | ||
2255 | static struct platform_driver omapfb_driver = { | |
2256 | .probe = omapfb_probe, | |
2257 | .remove = omapfb_remove, | |
2258 | .driver = { | |
2259 | .name = "omapfb", | |
2260 | .owner = THIS_MODULE, | |
2261 | }, | |
2262 | }; | |
2263 | ||
2264 | static int __init omapfb_init(void) | |
2265 | { | |
2266 | DBG("omapfb_init\n"); | |
2267 | ||
2268 | if (platform_driver_register(&omapfb_driver)) { | |
2269 | printk(KERN_ERR "failed to register omapfb driver\n"); | |
2270 | return -ENODEV; | |
2271 | } | |
2272 | ||
2273 | return 0; | |
2274 | } | |
2275 | ||
2276 | static void __exit omapfb_exit(void) | |
2277 | { | |
2278 | DBG("omapfb_exit\n"); | |
2279 | platform_driver_unregister(&omapfb_driver); | |
2280 | } | |
2281 | ||
2282 | module_param_named(mode, def_mode, charp, 0); | |
2283 | module_param_named(vram, def_vram, charp, 0); | |
2284 | module_param_named(rotate, def_rotate, int, 0); | |
2285 | module_param_named(vrfb, def_vrfb, bool, 0); | |
2286 | module_param_named(mirror, def_mirror, bool, 0); | |
2287 | ||
2288 | /* late_initcall to let panel/ctrl drivers loaded first. | |
2289 | * I guess better option would be a more dynamic approach, | |
2290 | * so that omapfb reacts to new panels when they are loaded */ | |
2291 | late_initcall(omapfb_init); | |
2292 | /*module_init(omapfb_init);*/ | |
2293 | module_exit(omapfb_exit); | |
2294 | ||
2295 | MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@nokia.com>"); | |
2296 | MODULE_DESCRIPTION("OMAP2/3 Framebuffer"); | |
2297 | MODULE_LICENSE("GPL v2"); |