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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> | |
5a0e3ad6 | 25 | #include <linux/slab.h> |
b39a982d TV |
26 | #include <linux/fb.h> |
27 | #include <linux/dma-mapping.h> | |
28 | #include <linux/vmalloc.h> | |
29 | #include <linux/device.h> | |
30 | #include <linux/platform_device.h> | |
31 | #include <linux/omapfb.h> | |
32 | ||
33 | #include <plat/display.h> | |
34 | #include <plat/vram.h> | |
35 | #include <plat/vrfb.h> | |
36 | ||
37 | #include "omapfb.h" | |
38 | ||
39 | #define MODULE_NAME "omapfb" | |
40 | ||
41 | #define OMAPFB_PLANE_XRES_MIN 8 | |
42 | #define OMAPFB_PLANE_YRES_MIN 8 | |
43 | ||
44 | static char *def_mode; | |
45 | static char *def_vram; | |
46 | static int def_vrfb; | |
47 | static int def_rotate; | |
48 | static int def_mirror; | |
49 | ||
50 | #ifdef DEBUG | |
51 | unsigned int omapfb_debug; | |
52 | module_param_named(debug, omapfb_debug, bool, 0644); | |
53 | static unsigned int omapfb_test_pattern; | |
54 | module_param_named(test, omapfb_test_pattern, bool, 0644); | |
55 | #endif | |
56 | ||
57 | static int omapfb_fb_init(struct omapfb2_device *fbdev, struct fb_info *fbi); | |
a2699504 TV |
58 | static int omapfb_get_recommended_bpp(struct omapfb2_device *fbdev, |
59 | struct omap_dss_device *dssdev); | |
b39a982d TV |
60 | |
61 | #ifdef DEBUG | |
62 | static void draw_pixel(struct fb_info *fbi, int x, int y, unsigned color) | |
63 | { | |
64 | struct fb_var_screeninfo *var = &fbi->var; | |
65 | struct fb_fix_screeninfo *fix = &fbi->fix; | |
66 | void __iomem *addr = fbi->screen_base; | |
67 | const unsigned bytespp = var->bits_per_pixel >> 3; | |
68 | const unsigned line_len = fix->line_length / bytespp; | |
69 | ||
70 | int r = (color >> 16) & 0xff; | |
71 | int g = (color >> 8) & 0xff; | |
72 | int b = (color >> 0) & 0xff; | |
73 | ||
74 | if (var->bits_per_pixel == 16) { | |
75 | u16 __iomem *p = (u16 __iomem *)addr; | |
76 | p += y * line_len + x; | |
77 | ||
78 | r = r * 32 / 256; | |
79 | g = g * 64 / 256; | |
80 | b = b * 32 / 256; | |
81 | ||
82 | __raw_writew((r << 11) | (g << 5) | (b << 0), p); | |
83 | } else if (var->bits_per_pixel == 24) { | |
84 | u8 __iomem *p = (u8 __iomem *)addr; | |
85 | p += (y * line_len + x) * 3; | |
86 | ||
87 | __raw_writeb(b, p + 0); | |
88 | __raw_writeb(g, p + 1); | |
89 | __raw_writeb(r, p + 2); | |
90 | } else if (var->bits_per_pixel == 32) { | |
91 | u32 __iomem *p = (u32 __iomem *)addr; | |
92 | p += y * line_len + x; | |
93 | __raw_writel(color, p); | |
94 | } | |
95 | } | |
96 | ||
97 | static void fill_fb(struct fb_info *fbi) | |
98 | { | |
99 | struct fb_var_screeninfo *var = &fbi->var; | |
100 | const short w = var->xres_virtual; | |
101 | const short h = var->yres_virtual; | |
102 | void __iomem *addr = fbi->screen_base; | |
103 | int y, x; | |
104 | ||
105 | if (!addr) | |
106 | return; | |
107 | ||
108 | DBG("fill_fb %dx%d, line_len %d bytes\n", w, h, fbi->fix.line_length); | |
109 | ||
110 | for (y = 0; y < h; y++) { | |
111 | for (x = 0; x < w; x++) { | |
112 | if (x < 20 && y < 20) | |
113 | draw_pixel(fbi, x, y, 0xffffff); | |
114 | else if (x < 20 && (y > 20 && y < h - 20)) | |
115 | draw_pixel(fbi, x, y, 0xff); | |
116 | else if (y < 20 && (x > 20 && x < w - 20)) | |
117 | draw_pixel(fbi, x, y, 0xff00); | |
118 | else if (x > w - 20 && (y > 20 && y < h - 20)) | |
119 | draw_pixel(fbi, x, y, 0xff0000); | |
120 | else if (y > h - 20 && (x > 20 && x < w - 20)) | |
121 | draw_pixel(fbi, x, y, 0xffff00); | |
122 | else if (x == 20 || x == w - 20 || | |
123 | y == 20 || y == h - 20) | |
124 | draw_pixel(fbi, x, y, 0xffffff); | |
125 | else if (x == y || w - x == h - y) | |
126 | draw_pixel(fbi, x, y, 0xff00ff); | |
127 | else if (w - x == y || x == h - y) | |
128 | draw_pixel(fbi, x, y, 0x00ffff); | |
129 | else if (x > 20 && y > 20 && x < w - 20 && y < h - 20) { | |
130 | int t = x * 3 / w; | |
131 | unsigned r = 0, g = 0, b = 0; | |
132 | unsigned c; | |
133 | if (var->bits_per_pixel == 16) { | |
134 | if (t == 0) | |
135 | b = (y % 32) * 256 / 32; | |
136 | else if (t == 1) | |
137 | g = (y % 64) * 256 / 64; | |
138 | else if (t == 2) | |
139 | r = (y % 32) * 256 / 32; | |
140 | } else { | |
141 | if (t == 0) | |
142 | b = (y % 256); | |
143 | else if (t == 1) | |
144 | g = (y % 256); | |
145 | else if (t == 2) | |
146 | r = (y % 256); | |
147 | } | |
148 | c = (r << 16) | (g << 8) | (b << 0); | |
149 | draw_pixel(fbi, x, y, c); | |
150 | } else { | |
151 | draw_pixel(fbi, x, y, 0); | |
152 | } | |
153 | } | |
154 | } | |
155 | } | |
156 | #endif | |
157 | ||
a4c1a148 | 158 | static unsigned omapfb_get_vrfb_offset(const struct omapfb_info *ofbi, int rot) |
b39a982d | 159 | { |
a4c1a148 | 160 | const struct vrfb *vrfb = &ofbi->region.vrfb; |
b39a982d TV |
161 | unsigned offset; |
162 | ||
163 | switch (rot) { | |
164 | case FB_ROTATE_UR: | |
165 | offset = 0; | |
166 | break; | |
167 | case FB_ROTATE_CW: | |
168 | offset = vrfb->yoffset; | |
169 | break; | |
170 | case FB_ROTATE_UD: | |
171 | offset = vrfb->yoffset * OMAP_VRFB_LINE_LEN + vrfb->xoffset; | |
172 | break; | |
173 | case FB_ROTATE_CCW: | |
174 | offset = vrfb->xoffset * OMAP_VRFB_LINE_LEN; | |
175 | break; | |
176 | default: | |
177 | BUG(); | |
178 | } | |
179 | ||
180 | offset *= vrfb->bytespp; | |
181 | ||
182 | return offset; | |
183 | } | |
184 | ||
a4c1a148 | 185 | static u32 omapfb_get_region_rot_paddr(const struct omapfb_info *ofbi, int rot) |
b39a982d TV |
186 | { |
187 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { | |
188 | return ofbi->region.vrfb.paddr[rot] | |
189 | + omapfb_get_vrfb_offset(ofbi, rot); | |
190 | } else { | |
191 | return ofbi->region.paddr; | |
192 | } | |
193 | } | |
194 | ||
a4c1a148 | 195 | static u32 omapfb_get_region_paddr(const struct omapfb_info *ofbi) |
b39a982d TV |
196 | { |
197 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) | |
198 | return ofbi->region.vrfb.paddr[0]; | |
199 | else | |
200 | return ofbi->region.paddr; | |
201 | } | |
202 | ||
a4c1a148 | 203 | static void __iomem *omapfb_get_region_vaddr(const struct omapfb_info *ofbi) |
b39a982d TV |
204 | { |
205 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) | |
206 | return ofbi->region.vrfb.vaddr[0]; | |
207 | else | |
208 | return ofbi->region.vaddr; | |
209 | } | |
210 | ||
211 | static struct omapfb_colormode omapfb_colormodes[] = { | |
212 | { | |
213 | .dssmode = OMAP_DSS_COLOR_UYVY, | |
214 | .bits_per_pixel = 16, | |
215 | .nonstd = OMAPFB_COLOR_YUV422, | |
216 | }, { | |
217 | .dssmode = OMAP_DSS_COLOR_YUV2, | |
218 | .bits_per_pixel = 16, | |
219 | .nonstd = OMAPFB_COLOR_YUY422, | |
220 | }, { | |
221 | .dssmode = OMAP_DSS_COLOR_ARGB16, | |
222 | .bits_per_pixel = 16, | |
223 | .red = { .length = 4, .offset = 8, .msb_right = 0 }, | |
224 | .green = { .length = 4, .offset = 4, .msb_right = 0 }, | |
225 | .blue = { .length = 4, .offset = 0, .msb_right = 0 }, | |
226 | .transp = { .length = 4, .offset = 12, .msb_right = 0 }, | |
227 | }, { | |
228 | .dssmode = OMAP_DSS_COLOR_RGB16, | |
229 | .bits_per_pixel = 16, | |
230 | .red = { .length = 5, .offset = 11, .msb_right = 0 }, | |
231 | .green = { .length = 6, .offset = 5, .msb_right = 0 }, | |
232 | .blue = { .length = 5, .offset = 0, .msb_right = 0 }, | |
233 | .transp = { .length = 0, .offset = 0, .msb_right = 0 }, | |
234 | }, { | |
235 | .dssmode = OMAP_DSS_COLOR_RGB24P, | |
236 | .bits_per_pixel = 24, | |
237 | .red = { .length = 8, .offset = 16, .msb_right = 0 }, | |
238 | .green = { .length = 8, .offset = 8, .msb_right = 0 }, | |
239 | .blue = { .length = 8, .offset = 0, .msb_right = 0 }, | |
240 | .transp = { .length = 0, .offset = 0, .msb_right = 0 }, | |
241 | }, { | |
242 | .dssmode = OMAP_DSS_COLOR_RGB24U, | |
243 | .bits_per_pixel = 32, | |
244 | .red = { .length = 8, .offset = 16, .msb_right = 0 }, | |
245 | .green = { .length = 8, .offset = 8, .msb_right = 0 }, | |
246 | .blue = { .length = 8, .offset = 0, .msb_right = 0 }, | |
247 | .transp = { .length = 0, .offset = 0, .msb_right = 0 }, | |
248 | }, { | |
249 | .dssmode = OMAP_DSS_COLOR_ARGB32, | |
250 | .bits_per_pixel = 32, | |
251 | .red = { .length = 8, .offset = 16, .msb_right = 0 }, | |
252 | .green = { .length = 8, .offset = 8, .msb_right = 0 }, | |
253 | .blue = { .length = 8, .offset = 0, .msb_right = 0 }, | |
254 | .transp = { .length = 8, .offset = 24, .msb_right = 0 }, | |
255 | }, { | |
256 | .dssmode = OMAP_DSS_COLOR_RGBA32, | |
257 | .bits_per_pixel = 32, | |
258 | .red = { .length = 8, .offset = 24, .msb_right = 0 }, | |
259 | .green = { .length = 8, .offset = 16, .msb_right = 0 }, | |
260 | .blue = { .length = 8, .offset = 8, .msb_right = 0 }, | |
261 | .transp = { .length = 8, .offset = 0, .msb_right = 0 }, | |
262 | }, { | |
263 | .dssmode = OMAP_DSS_COLOR_RGBX32, | |
264 | .bits_per_pixel = 32, | |
265 | .red = { .length = 8, .offset = 24, .msb_right = 0 }, | |
266 | .green = { .length = 8, .offset = 16, .msb_right = 0 }, | |
267 | .blue = { .length = 8, .offset = 8, .msb_right = 0 }, | |
268 | .transp = { .length = 0, .offset = 0, .msb_right = 0 }, | |
269 | }, | |
270 | }; | |
271 | ||
272 | static bool cmp_var_to_colormode(struct fb_var_screeninfo *var, | |
273 | struct omapfb_colormode *color) | |
274 | { | |
275 | bool cmp_component(struct fb_bitfield *f1, struct fb_bitfield *f2) | |
276 | { | |
277 | return f1->length == f2->length && | |
278 | f1->offset == f2->offset && | |
279 | f1->msb_right == f2->msb_right; | |
280 | } | |
281 | ||
282 | if (var->bits_per_pixel == 0 || | |
283 | var->red.length == 0 || | |
284 | var->blue.length == 0 || | |
285 | var->green.length == 0) | |
286 | return 0; | |
287 | ||
288 | return var->bits_per_pixel == color->bits_per_pixel && | |
289 | cmp_component(&var->red, &color->red) && | |
290 | cmp_component(&var->green, &color->green) && | |
291 | cmp_component(&var->blue, &color->blue) && | |
292 | cmp_component(&var->transp, &color->transp); | |
293 | } | |
294 | ||
295 | static void assign_colormode_to_var(struct fb_var_screeninfo *var, | |
296 | struct omapfb_colormode *color) | |
297 | { | |
298 | var->bits_per_pixel = color->bits_per_pixel; | |
299 | var->nonstd = color->nonstd; | |
300 | var->red = color->red; | |
301 | var->green = color->green; | |
302 | var->blue = color->blue; | |
303 | var->transp = color->transp; | |
304 | } | |
305 | ||
306 | static int fb_mode_to_dss_mode(struct fb_var_screeninfo *var, | |
307 | enum omap_color_mode *mode) | |
308 | { | |
309 | enum omap_color_mode dssmode; | |
310 | int i; | |
311 | ||
312 | /* first match with nonstd field */ | |
313 | if (var->nonstd) { | |
314 | for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) { | |
315 | struct omapfb_colormode *m = &omapfb_colormodes[i]; | |
316 | if (var->nonstd == m->nonstd) { | |
317 | assign_colormode_to_var(var, m); | |
318 | *mode = m->dssmode; | |
319 | return 0; | |
320 | } | |
321 | } | |
322 | ||
323 | return -EINVAL; | |
324 | } | |
325 | ||
326 | /* then try exact match of bpp and colors */ | |
327 | for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) { | |
328 | struct omapfb_colormode *m = &omapfb_colormodes[i]; | |
329 | if (cmp_var_to_colormode(var, m)) { | |
330 | assign_colormode_to_var(var, m); | |
331 | *mode = m->dssmode; | |
332 | return 0; | |
333 | } | |
334 | } | |
335 | ||
336 | /* match with bpp if user has not filled color fields | |
337 | * properly */ | |
338 | switch (var->bits_per_pixel) { | |
339 | case 1: | |
340 | dssmode = OMAP_DSS_COLOR_CLUT1; | |
341 | break; | |
342 | case 2: | |
343 | dssmode = OMAP_DSS_COLOR_CLUT2; | |
344 | break; | |
345 | case 4: | |
346 | dssmode = OMAP_DSS_COLOR_CLUT4; | |
347 | break; | |
348 | case 8: | |
349 | dssmode = OMAP_DSS_COLOR_CLUT8; | |
350 | break; | |
351 | case 12: | |
352 | dssmode = OMAP_DSS_COLOR_RGB12U; | |
353 | break; | |
354 | case 16: | |
355 | dssmode = OMAP_DSS_COLOR_RGB16; | |
356 | break; | |
357 | case 24: | |
358 | dssmode = OMAP_DSS_COLOR_RGB24P; | |
359 | break; | |
360 | case 32: | |
361 | dssmode = OMAP_DSS_COLOR_RGB24U; | |
362 | break; | |
363 | default: | |
364 | return -EINVAL; | |
365 | } | |
366 | ||
367 | for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) { | |
368 | struct omapfb_colormode *m = &omapfb_colormodes[i]; | |
369 | if (dssmode == m->dssmode) { | |
370 | assign_colormode_to_var(var, m); | |
371 | *mode = m->dssmode; | |
372 | return 0; | |
373 | } | |
374 | } | |
375 | ||
376 | return -EINVAL; | |
377 | } | |
378 | ||
379 | static int check_fb_res_bounds(struct fb_var_screeninfo *var) | |
380 | { | |
381 | int xres_min = OMAPFB_PLANE_XRES_MIN; | |
382 | int xres_max = 2048; | |
383 | int yres_min = OMAPFB_PLANE_YRES_MIN; | |
384 | int yres_max = 2048; | |
385 | ||
386 | /* XXX: some applications seem to set virtual res to 0. */ | |
387 | if (var->xres_virtual == 0) | |
388 | var->xres_virtual = var->xres; | |
389 | ||
390 | if (var->yres_virtual == 0) | |
391 | var->yres_virtual = var->yres; | |
392 | ||
393 | if (var->xres_virtual < xres_min || var->yres_virtual < yres_min) | |
394 | return -EINVAL; | |
395 | ||
396 | if (var->xres < xres_min) | |
397 | var->xres = xres_min; | |
398 | if (var->yres < yres_min) | |
399 | var->yres = yres_min; | |
400 | if (var->xres > xres_max) | |
401 | var->xres = xres_max; | |
402 | if (var->yres > yres_max) | |
403 | var->yres = yres_max; | |
404 | ||
405 | if (var->xres > var->xres_virtual) | |
406 | var->xres = var->xres_virtual; | |
407 | if (var->yres > var->yres_virtual) | |
408 | var->yres = var->yres_virtual; | |
409 | ||
410 | return 0; | |
411 | } | |
412 | ||
413 | static void shrink_height(unsigned long max_frame_size, | |
414 | struct fb_var_screeninfo *var) | |
415 | { | |
416 | DBG("can't fit FB into memory, reducing y\n"); | |
417 | var->yres_virtual = max_frame_size / | |
418 | (var->xres_virtual * var->bits_per_pixel >> 3); | |
419 | ||
420 | if (var->yres_virtual < OMAPFB_PLANE_YRES_MIN) | |
421 | var->yres_virtual = OMAPFB_PLANE_YRES_MIN; | |
422 | ||
423 | if (var->yres > var->yres_virtual) | |
424 | var->yres = var->yres_virtual; | |
425 | } | |
426 | ||
427 | static void shrink_width(unsigned long max_frame_size, | |
428 | struct fb_var_screeninfo *var) | |
429 | { | |
430 | DBG("can't fit FB into memory, reducing x\n"); | |
431 | var->xres_virtual = max_frame_size / var->yres_virtual / | |
432 | (var->bits_per_pixel >> 3); | |
433 | ||
434 | if (var->xres_virtual < OMAPFB_PLANE_XRES_MIN) | |
435 | var->xres_virtual = OMAPFB_PLANE_XRES_MIN; | |
436 | ||
437 | if (var->xres > var->xres_virtual) | |
438 | var->xres = var->xres_virtual; | |
439 | } | |
440 | ||
441 | static int check_vrfb_fb_size(unsigned long region_size, | |
442 | const struct fb_var_screeninfo *var) | |
443 | { | |
444 | unsigned long min_phys_size = omap_vrfb_min_phys_size(var->xres_virtual, | |
445 | var->yres_virtual, var->bits_per_pixel >> 3); | |
446 | ||
447 | return min_phys_size > region_size ? -EINVAL : 0; | |
448 | } | |
449 | ||
450 | static int check_fb_size(const struct omapfb_info *ofbi, | |
451 | struct fb_var_screeninfo *var) | |
452 | { | |
453 | unsigned long max_frame_size = ofbi->region.size; | |
454 | int bytespp = var->bits_per_pixel >> 3; | |
455 | unsigned long line_size = var->xres_virtual * bytespp; | |
456 | ||
457 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { | |
458 | /* One needs to check for both VRFB and OMAPFB limitations. */ | |
459 | if (check_vrfb_fb_size(max_frame_size, var)) | |
460 | shrink_height(omap_vrfb_max_height( | |
461 | max_frame_size, var->xres_virtual, bytespp) * | |
462 | line_size, var); | |
463 | ||
464 | if (check_vrfb_fb_size(max_frame_size, var)) { | |
465 | DBG("cannot fit FB to memory\n"); | |
466 | return -EINVAL; | |
467 | } | |
468 | ||
469 | return 0; | |
470 | } | |
471 | ||
472 | DBG("max frame size %lu, line size %lu\n", max_frame_size, line_size); | |
473 | ||
474 | if (line_size * var->yres_virtual > max_frame_size) | |
475 | shrink_height(max_frame_size, var); | |
476 | ||
477 | if (line_size * var->yres_virtual > max_frame_size) { | |
478 | shrink_width(max_frame_size, var); | |
479 | line_size = var->xres_virtual * bytespp; | |
480 | } | |
481 | ||
482 | if (line_size * var->yres_virtual > max_frame_size) { | |
483 | DBG("cannot fit FB to memory\n"); | |
484 | return -EINVAL; | |
485 | } | |
486 | ||
487 | return 0; | |
488 | } | |
489 | ||
490 | /* | |
491 | * Consider if VRFB assisted rotation is in use and if the virtual space for | |
492 | * the zero degree view needs to be mapped. The need for mapping also acts as | |
493 | * the trigger for setting up the hardware on the context in question. This | |
494 | * ensures that one does not attempt to access the virtual view before the | |
495 | * hardware is serving the address translations. | |
496 | */ | |
497 | static int setup_vrfb_rotation(struct fb_info *fbi) | |
498 | { | |
499 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
500 | struct omapfb2_mem_region *rg = &ofbi->region; | |
501 | struct vrfb *vrfb = &rg->vrfb; | |
502 | struct fb_var_screeninfo *var = &fbi->var; | |
503 | struct fb_fix_screeninfo *fix = &fbi->fix; | |
504 | unsigned bytespp; | |
505 | bool yuv_mode; | |
506 | enum omap_color_mode mode; | |
507 | int r; | |
508 | bool reconf; | |
509 | ||
510 | if (!rg->size || ofbi->rotation_type != OMAP_DSS_ROT_VRFB) | |
511 | return 0; | |
512 | ||
513 | DBG("setup_vrfb_rotation\n"); | |
514 | ||
515 | r = fb_mode_to_dss_mode(var, &mode); | |
516 | if (r) | |
517 | return r; | |
518 | ||
519 | bytespp = var->bits_per_pixel >> 3; | |
520 | ||
521 | yuv_mode = mode == OMAP_DSS_COLOR_YUV2 || mode == OMAP_DSS_COLOR_UYVY; | |
522 | ||
523 | /* We need to reconfigure VRFB if the resolution changes, if yuv mode | |
524 | * is enabled/disabled, or if bytes per pixel changes */ | |
525 | ||
526 | /* XXX we shouldn't allow this when framebuffer is mmapped */ | |
527 | ||
528 | reconf = false; | |
529 | ||
530 | if (yuv_mode != vrfb->yuv_mode) | |
531 | reconf = true; | |
532 | else if (bytespp != vrfb->bytespp) | |
533 | reconf = true; | |
534 | else if (vrfb->xres != var->xres_virtual || | |
535 | vrfb->yres != var->yres_virtual) | |
536 | reconf = true; | |
537 | ||
538 | if (vrfb->vaddr[0] && reconf) { | |
539 | fbi->screen_base = NULL; | |
540 | fix->smem_start = 0; | |
541 | fix->smem_len = 0; | |
542 | iounmap(vrfb->vaddr[0]); | |
543 | vrfb->vaddr[0] = NULL; | |
544 | DBG("setup_vrfb_rotation: reset fb\n"); | |
545 | } | |
546 | ||
547 | if (vrfb->vaddr[0]) | |
548 | return 0; | |
549 | ||
550 | omap_vrfb_setup(&rg->vrfb, rg->paddr, | |
551 | var->xres_virtual, | |
552 | var->yres_virtual, | |
553 | bytespp, yuv_mode); | |
554 | ||
555 | /* Now one can ioremap the 0 angle view */ | |
556 | r = omap_vrfb_map_angle(vrfb, var->yres_virtual, 0); | |
557 | if (r) | |
558 | return r; | |
559 | ||
560 | /* used by open/write in fbmem.c */ | |
561 | fbi->screen_base = ofbi->region.vrfb.vaddr[0]; | |
562 | ||
563 | fix->smem_start = ofbi->region.vrfb.paddr[0]; | |
564 | ||
565 | switch (var->nonstd) { | |
566 | case OMAPFB_COLOR_YUV422: | |
567 | case OMAPFB_COLOR_YUY422: | |
568 | fix->line_length = | |
569 | (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 2; | |
570 | break; | |
571 | default: | |
572 | fix->line_length = | |
573 | (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 3; | |
574 | break; | |
575 | } | |
576 | ||
577 | fix->smem_len = var->yres_virtual * fix->line_length; | |
578 | ||
579 | return 0; | |
580 | } | |
581 | ||
582 | int dss_mode_to_fb_mode(enum omap_color_mode dssmode, | |
583 | struct fb_var_screeninfo *var) | |
584 | { | |
585 | int i; | |
586 | ||
587 | for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) { | |
588 | struct omapfb_colormode *mode = &omapfb_colormodes[i]; | |
589 | if (dssmode == mode->dssmode) { | |
590 | assign_colormode_to_var(var, mode); | |
591 | return 0; | |
592 | } | |
593 | } | |
594 | return -ENOENT; | |
595 | } | |
596 | ||
597 | void set_fb_fix(struct fb_info *fbi) | |
598 | { | |
599 | struct fb_fix_screeninfo *fix = &fbi->fix; | |
600 | struct fb_var_screeninfo *var = &fbi->var; | |
601 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
602 | struct omapfb2_mem_region *rg = &ofbi->region; | |
603 | ||
604 | DBG("set_fb_fix\n"); | |
605 | ||
606 | /* used by open/write in fbmem.c */ | |
607 | fbi->screen_base = (char __iomem *)omapfb_get_region_vaddr(ofbi); | |
608 | ||
609 | /* used by mmap in fbmem.c */ | |
610 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { | |
611 | switch (var->nonstd) { | |
612 | case OMAPFB_COLOR_YUV422: | |
613 | case OMAPFB_COLOR_YUY422: | |
614 | fix->line_length = | |
615 | (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 2; | |
616 | break; | |
617 | default: | |
618 | fix->line_length = | |
619 | (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 3; | |
620 | break; | |
621 | } | |
622 | ||
623 | fix->smem_len = var->yres_virtual * fix->line_length; | |
624 | } else { | |
625 | fix->line_length = | |
626 | (var->xres_virtual * var->bits_per_pixel) >> 3; | |
627 | fix->smem_len = rg->size; | |
628 | } | |
629 | ||
630 | fix->smem_start = omapfb_get_region_paddr(ofbi); | |
631 | ||
632 | fix->type = FB_TYPE_PACKED_PIXELS; | |
633 | ||
634 | if (var->nonstd) | |
635 | fix->visual = FB_VISUAL_PSEUDOCOLOR; | |
636 | else { | |
637 | switch (var->bits_per_pixel) { | |
638 | case 32: | |
639 | case 24: | |
640 | case 16: | |
641 | case 12: | |
642 | fix->visual = FB_VISUAL_TRUECOLOR; | |
643 | /* 12bpp is stored in 16 bits */ | |
644 | break; | |
645 | case 1: | |
646 | case 2: | |
647 | case 4: | |
648 | case 8: | |
649 | fix->visual = FB_VISUAL_PSEUDOCOLOR; | |
650 | break; | |
651 | } | |
652 | } | |
653 | ||
654 | fix->accel = FB_ACCEL_NONE; | |
655 | ||
656 | fix->xpanstep = 1; | |
657 | fix->ypanstep = 1; | |
658 | } | |
659 | ||
660 | /* check new var and possibly modify it to be ok */ | |
661 | int check_fb_var(struct fb_info *fbi, struct fb_var_screeninfo *var) | |
662 | { | |
663 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
664 | struct omap_dss_device *display = fb2display(fbi); | |
665 | enum omap_color_mode mode = 0; | |
666 | int i; | |
667 | int r; | |
668 | ||
669 | DBG("check_fb_var %d\n", ofbi->id); | |
670 | ||
671 | if (ofbi->region.size == 0) | |
672 | return 0; | |
673 | ||
674 | r = fb_mode_to_dss_mode(var, &mode); | |
675 | if (r) { | |
676 | DBG("cannot convert var to omap dss mode\n"); | |
677 | return r; | |
678 | } | |
679 | ||
680 | for (i = 0; i < ofbi->num_overlays; ++i) { | |
681 | if ((ofbi->overlays[i]->supported_modes & mode) == 0) { | |
682 | DBG("invalid mode\n"); | |
683 | return -EINVAL; | |
684 | } | |
685 | } | |
686 | ||
687 | if (var->rotate < 0 || var->rotate > 3) | |
688 | return -EINVAL; | |
689 | ||
690 | if (check_fb_res_bounds(var)) | |
691 | return -EINVAL; | |
692 | ||
693 | if (check_fb_size(ofbi, var)) | |
694 | return -EINVAL; | |
695 | ||
696 | if (var->xres + var->xoffset > var->xres_virtual) | |
697 | var->xoffset = var->xres_virtual - var->xres; | |
698 | if (var->yres + var->yoffset > var->yres_virtual) | |
699 | var->yoffset = var->yres_virtual - var->yres; | |
700 | ||
701 | DBG("xres = %d, yres = %d, vxres = %d, vyres = %d\n", | |
702 | var->xres, var->yres, | |
703 | var->xres_virtual, var->yres_virtual); | |
704 | ||
705 | var->height = -1; | |
706 | var->width = -1; | |
707 | var->grayscale = 0; | |
708 | ||
69b2048f | 709 | if (display && display->driver->get_timings) { |
b39a982d | 710 | struct omap_video_timings timings; |
69b2048f | 711 | display->driver->get_timings(display, &timings); |
b39a982d TV |
712 | |
713 | /* pixclock in ps, the rest in pixclock */ | |
714 | var->pixclock = timings.pixel_clock != 0 ? | |
715 | KHZ2PICOS(timings.pixel_clock) : | |
716 | 0; | |
717 | var->left_margin = timings.hfp; | |
718 | var->right_margin = timings.hbp; | |
719 | var->upper_margin = timings.vfp; | |
720 | var->lower_margin = timings.vbp; | |
721 | var->hsync_len = timings.hsw; | |
722 | var->vsync_len = timings.vsw; | |
723 | } else { | |
724 | var->pixclock = 0; | |
725 | var->left_margin = 0; | |
726 | var->right_margin = 0; | |
727 | var->upper_margin = 0; | |
728 | var->lower_margin = 0; | |
729 | var->hsync_len = 0; | |
730 | var->vsync_len = 0; | |
731 | } | |
732 | ||
733 | /* TODO: get these from panel->config */ | |
734 | var->vmode = FB_VMODE_NONINTERLACED; | |
735 | var->sync = 0; | |
736 | ||
737 | return 0; | |
738 | } | |
739 | ||
740 | /* | |
741 | * --------------------------------------------------------------------------- | |
742 | * fbdev framework callbacks | |
743 | * --------------------------------------------------------------------------- | |
744 | */ | |
745 | static int omapfb_open(struct fb_info *fbi, int user) | |
746 | { | |
747 | return 0; | |
748 | } | |
749 | ||
750 | static int omapfb_release(struct fb_info *fbi, int user) | |
751 | { | |
752 | #if 0 | |
753 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
754 | struct omapfb2_device *fbdev = ofbi->fbdev; | |
755 | struct omap_dss_device *display = fb2display(fbi); | |
756 | ||
757 | DBG("Closing fb with plane index %d\n", ofbi->id); | |
758 | ||
759 | omapfb_lock(fbdev); | |
760 | ||
761 | if (display && display->get_update_mode && display->update) { | |
762 | /* XXX this update should be removed, I think. But it's | |
763 | * good for debugging */ | |
764 | if (display->get_update_mode(display) == | |
765 | OMAP_DSS_UPDATE_MANUAL) { | |
766 | u16 w, h; | |
767 | ||
768 | if (display->sync) | |
769 | display->sync(display); | |
770 | ||
771 | display->get_resolution(display, &w, &h); | |
772 | display->update(display, 0, 0, w, h); | |
773 | } | |
774 | } | |
775 | ||
776 | if (display && display->sync) | |
777 | display->sync(display); | |
778 | ||
779 | omapfb_unlock(fbdev); | |
780 | #endif | |
781 | return 0; | |
782 | } | |
783 | ||
a4c1a148 VS |
784 | static unsigned calc_rotation_offset_dma(const struct fb_var_screeninfo *var, |
785 | const struct fb_fix_screeninfo *fix, int rotation) | |
b39a982d TV |
786 | { |
787 | unsigned offset; | |
788 | ||
789 | offset = var->yoffset * fix->line_length + | |
790 | var->xoffset * (var->bits_per_pixel >> 3); | |
791 | ||
792 | return offset; | |
793 | } | |
794 | ||
a4c1a148 VS |
795 | static unsigned calc_rotation_offset_vrfb(const struct fb_var_screeninfo *var, |
796 | const struct fb_fix_screeninfo *fix, int rotation) | |
b39a982d TV |
797 | { |
798 | unsigned offset; | |
799 | ||
800 | if (rotation == FB_ROTATE_UD) | |
801 | offset = (var->yres_virtual - var->yres) * | |
802 | fix->line_length; | |
803 | else if (rotation == FB_ROTATE_CW) | |
804 | offset = (var->yres_virtual - var->yres) * | |
805 | (var->bits_per_pixel >> 3); | |
806 | else | |
807 | offset = 0; | |
808 | ||
809 | if (rotation == FB_ROTATE_UR) | |
810 | offset += var->yoffset * fix->line_length + | |
811 | var->xoffset * (var->bits_per_pixel >> 3); | |
812 | else if (rotation == FB_ROTATE_UD) | |
813 | offset -= var->yoffset * fix->line_length + | |
814 | var->xoffset * (var->bits_per_pixel >> 3); | |
815 | else if (rotation == FB_ROTATE_CW) | |
816 | offset -= var->xoffset * fix->line_length + | |
817 | var->yoffset * (var->bits_per_pixel >> 3); | |
818 | else if (rotation == FB_ROTATE_CCW) | |
819 | offset += var->xoffset * fix->line_length + | |
820 | var->yoffset * (var->bits_per_pixel >> 3); | |
821 | ||
822 | return offset; | |
823 | } | |
824 | ||
825 | ||
826 | /* setup overlay according to the fb */ | |
827 | static int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl, | |
828 | u16 posx, u16 posy, u16 outw, u16 outh) | |
829 | { | |
830 | int r = 0; | |
831 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
832 | struct fb_var_screeninfo *var = &fbi->var; | |
833 | struct fb_fix_screeninfo *fix = &fbi->fix; | |
834 | enum omap_color_mode mode = 0; | |
835 | int offset; | |
836 | u32 data_start_p; | |
837 | void __iomem *data_start_v; | |
838 | struct omap_overlay_info info; | |
839 | int xres, yres; | |
840 | int screen_width; | |
841 | int mirror; | |
842 | int rotation = var->rotate; | |
843 | int i; | |
844 | ||
845 | for (i = 0; i < ofbi->num_overlays; i++) { | |
846 | if (ovl != ofbi->overlays[i]) | |
847 | continue; | |
848 | ||
849 | rotation = (rotation + ofbi->rotation[i]) % 4; | |
850 | break; | |
851 | } | |
852 | ||
853 | DBG("setup_overlay %d, posx %d, posy %d, outw %d, outh %d\n", ofbi->id, | |
854 | posx, posy, outw, outh); | |
855 | ||
856 | if (rotation == FB_ROTATE_CW || rotation == FB_ROTATE_CCW) { | |
857 | xres = var->yres; | |
858 | yres = var->xres; | |
859 | } else { | |
860 | xres = var->xres; | |
861 | yres = var->yres; | |
862 | } | |
863 | ||
864 | ||
865 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { | |
866 | data_start_p = omapfb_get_region_rot_paddr(ofbi, rotation); | |
867 | data_start_v = NULL; | |
868 | } else { | |
869 | data_start_p = omapfb_get_region_paddr(ofbi); | |
870 | data_start_v = omapfb_get_region_vaddr(ofbi); | |
871 | } | |
872 | ||
873 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) | |
874 | offset = calc_rotation_offset_vrfb(var, fix, rotation); | |
875 | else | |
876 | offset = calc_rotation_offset_dma(var, fix, rotation); | |
877 | ||
878 | data_start_p += offset; | |
879 | data_start_v += offset; | |
880 | ||
881 | if (offset) | |
882 | DBG("offset %d, %d = %d\n", | |
883 | var->xoffset, var->yoffset, offset); | |
884 | ||
885 | DBG("paddr %x, vaddr %p\n", data_start_p, data_start_v); | |
886 | ||
887 | r = fb_mode_to_dss_mode(var, &mode); | |
888 | if (r) { | |
889 | DBG("fb_mode_to_dss_mode failed"); | |
890 | goto err; | |
891 | } | |
892 | ||
893 | switch (var->nonstd) { | |
894 | case OMAPFB_COLOR_YUV422: | |
895 | case OMAPFB_COLOR_YUY422: | |
896 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { | |
897 | screen_width = fix->line_length | |
898 | / (var->bits_per_pixel >> 2); | |
899 | break; | |
900 | } | |
901 | default: | |
902 | screen_width = fix->line_length / (var->bits_per_pixel >> 3); | |
903 | break; | |
904 | } | |
905 | ||
906 | ovl->get_overlay_info(ovl, &info); | |
907 | ||
908 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) | |
909 | mirror = 0; | |
910 | else | |
911 | mirror = ofbi->mirror; | |
912 | ||
913 | info.paddr = data_start_p; | |
914 | info.vaddr = data_start_v; | |
915 | info.screen_width = screen_width; | |
916 | info.width = xres; | |
917 | info.height = yres; | |
918 | info.color_mode = mode; | |
919 | info.rotation_type = ofbi->rotation_type; | |
920 | info.rotation = rotation; | |
921 | info.mirror = mirror; | |
922 | ||
923 | info.pos_x = posx; | |
924 | info.pos_y = posy; | |
925 | info.out_width = outw; | |
926 | info.out_height = outh; | |
927 | ||
928 | r = ovl->set_overlay_info(ovl, &info); | |
929 | if (r) { | |
930 | DBG("ovl->setup_overlay_info failed\n"); | |
931 | goto err; | |
932 | } | |
933 | ||
934 | return 0; | |
935 | ||
936 | err: | |
937 | DBG("setup_overlay failed\n"); | |
938 | return r; | |
939 | } | |
940 | ||
941 | /* apply var to the overlay */ | |
942 | int omapfb_apply_changes(struct fb_info *fbi, int init) | |
943 | { | |
944 | int r = 0; | |
945 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
946 | struct fb_var_screeninfo *var = &fbi->var; | |
947 | struct omap_overlay *ovl; | |
948 | u16 posx, posy; | |
949 | u16 outw, outh; | |
950 | int i; | |
951 | ||
952 | #ifdef DEBUG | |
953 | if (omapfb_test_pattern) | |
954 | fill_fb(fbi); | |
955 | #endif | |
956 | ||
957 | for (i = 0; i < ofbi->num_overlays; i++) { | |
958 | ovl = ofbi->overlays[i]; | |
959 | ||
960 | DBG("apply_changes, fb %d, ovl %d\n", ofbi->id, ovl->id); | |
961 | ||
962 | if (ofbi->region.size == 0) { | |
963 | /* the fb is not available. disable the overlay */ | |
964 | omapfb_overlay_enable(ovl, 0); | |
965 | if (!init && ovl->manager) | |
966 | ovl->manager->apply(ovl->manager); | |
967 | continue; | |
968 | } | |
969 | ||
970 | if (init || (ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) { | |
971 | int rotation = (var->rotate + ofbi->rotation[i]) % 4; | |
972 | if (rotation == FB_ROTATE_CW || | |
973 | rotation == FB_ROTATE_CCW) { | |
974 | outw = var->yres; | |
975 | outh = var->xres; | |
976 | } else { | |
977 | outw = var->xres; | |
978 | outh = var->yres; | |
979 | } | |
980 | } else { | |
981 | outw = ovl->info.out_width; | |
982 | outh = ovl->info.out_height; | |
983 | } | |
984 | ||
985 | if (init) { | |
986 | posx = 0; | |
987 | posy = 0; | |
988 | } else { | |
989 | posx = ovl->info.pos_x; | |
990 | posy = ovl->info.pos_y; | |
991 | } | |
992 | ||
993 | r = omapfb_setup_overlay(fbi, ovl, posx, posy, outw, outh); | |
994 | if (r) | |
995 | goto err; | |
996 | ||
997 | if (!init && ovl->manager) | |
998 | ovl->manager->apply(ovl->manager); | |
999 | } | |
1000 | return 0; | |
1001 | err: | |
1002 | DBG("apply_changes failed\n"); | |
1003 | return r; | |
1004 | } | |
1005 | ||
1006 | /* checks var and eventually tweaks it to something supported, | |
1007 | * DO NOT MODIFY PAR */ | |
1008 | static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi) | |
1009 | { | |
1010 | int r; | |
1011 | ||
1012 | DBG("check_var(%d)\n", FB2OFB(fbi)->id); | |
1013 | ||
1014 | r = check_fb_var(fbi, var); | |
1015 | ||
1016 | return r; | |
1017 | } | |
1018 | ||
1019 | /* set the video mode according to info->var */ | |
1020 | static int omapfb_set_par(struct fb_info *fbi) | |
1021 | { | |
1022 | int r; | |
1023 | ||
1024 | DBG("set_par(%d)\n", FB2OFB(fbi)->id); | |
1025 | ||
1026 | set_fb_fix(fbi); | |
1027 | ||
1028 | r = setup_vrfb_rotation(fbi); | |
1029 | if (r) | |
1030 | return r; | |
1031 | ||
1032 | r = omapfb_apply_changes(fbi, 0); | |
1033 | ||
1034 | return r; | |
1035 | } | |
1036 | ||
1037 | static int omapfb_pan_display(struct fb_var_screeninfo *var, | |
1038 | struct fb_info *fbi) | |
1039 | { | |
1040 | struct fb_var_screeninfo new_var; | |
1041 | int r; | |
1042 | ||
1043 | DBG("pan_display(%d)\n", FB2OFB(fbi)->id); | |
1044 | ||
1045 | if (var->xoffset == fbi->var.xoffset && | |
1046 | var->yoffset == fbi->var.yoffset) | |
1047 | return 0; | |
1048 | ||
1049 | new_var = fbi->var; | |
1050 | new_var.xoffset = var->xoffset; | |
1051 | new_var.yoffset = var->yoffset; | |
1052 | ||
1053 | fbi->var = new_var; | |
1054 | ||
1055 | r = omapfb_apply_changes(fbi, 0); | |
1056 | ||
1057 | return r; | |
1058 | } | |
1059 | ||
1060 | static void mmap_user_open(struct vm_area_struct *vma) | |
1061 | { | |
1062 | struct omapfb_info *ofbi = (struct omapfb_info *)vma->vm_private_data; | |
1063 | ||
1064 | atomic_inc(&ofbi->map_count); | |
1065 | } | |
1066 | ||
1067 | static void mmap_user_close(struct vm_area_struct *vma) | |
1068 | { | |
1069 | struct omapfb_info *ofbi = (struct omapfb_info *)vma->vm_private_data; | |
1070 | ||
1071 | atomic_dec(&ofbi->map_count); | |
1072 | } | |
1073 | ||
1074 | static struct vm_operations_struct mmap_user_ops = { | |
1075 | .open = mmap_user_open, | |
1076 | .close = mmap_user_close, | |
1077 | }; | |
1078 | ||
1079 | static int omapfb_mmap(struct fb_info *fbi, struct vm_area_struct *vma) | |
1080 | { | |
1081 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
1082 | struct fb_fix_screeninfo *fix = &fbi->fix; | |
1083 | unsigned long off; | |
1084 | unsigned long start; | |
1085 | u32 len; | |
1086 | ||
1087 | if (vma->vm_end - vma->vm_start == 0) | |
1088 | return 0; | |
1089 | if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) | |
1090 | return -EINVAL; | |
1091 | off = vma->vm_pgoff << PAGE_SHIFT; | |
1092 | ||
1093 | start = omapfb_get_region_paddr(ofbi); | |
1094 | len = fix->smem_len; | |
1095 | if (off >= len) | |
1096 | return -EINVAL; | |
1097 | if ((vma->vm_end - vma->vm_start + off) > len) | |
1098 | return -EINVAL; | |
1099 | ||
1100 | off += start; | |
1101 | ||
1102 | DBG("user mmap region start %lx, len %d, off %lx\n", start, len, off); | |
1103 | ||
1104 | vma->vm_pgoff = off >> PAGE_SHIFT; | |
1105 | vma->vm_flags |= VM_IO | VM_RESERVED; | |
1106 | vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); | |
1107 | vma->vm_ops = &mmap_user_ops; | |
1108 | vma->vm_private_data = ofbi; | |
1109 | if (io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT, | |
1110 | vma->vm_end - vma->vm_start, vma->vm_page_prot)) | |
1111 | return -EAGAIN; | |
1112 | /* vm_ops.open won't be called for mmap itself. */ | |
1113 | atomic_inc(&ofbi->map_count); | |
1114 | return 0; | |
1115 | } | |
1116 | ||
1117 | /* Store a single color palette entry into a pseudo palette or the hardware | |
1118 | * palette if one is available. For now we support only 16bpp and thus store | |
1119 | * the entry only to the pseudo palette. | |
1120 | */ | |
1121 | static int _setcolreg(struct fb_info *fbi, u_int regno, u_int red, u_int green, | |
1122 | u_int blue, u_int transp, int update_hw_pal) | |
1123 | { | |
1124 | /*struct omapfb_info *ofbi = FB2OFB(fbi);*/ | |
1125 | /*struct omapfb2_device *fbdev = ofbi->fbdev;*/ | |
1126 | struct fb_var_screeninfo *var = &fbi->var; | |
1127 | int r = 0; | |
1128 | ||
1129 | enum omapfb_color_format mode = OMAPFB_COLOR_RGB24U; /* XXX */ | |
1130 | ||
1131 | /*switch (plane->color_mode) {*/ | |
1132 | switch (mode) { | |
1133 | case OMAPFB_COLOR_YUV422: | |
1134 | case OMAPFB_COLOR_YUV420: | |
1135 | case OMAPFB_COLOR_YUY422: | |
1136 | r = -EINVAL; | |
1137 | break; | |
1138 | case OMAPFB_COLOR_CLUT_8BPP: | |
1139 | case OMAPFB_COLOR_CLUT_4BPP: | |
1140 | case OMAPFB_COLOR_CLUT_2BPP: | |
1141 | case OMAPFB_COLOR_CLUT_1BPP: | |
1142 | /* | |
1143 | if (fbdev->ctrl->setcolreg) | |
1144 | r = fbdev->ctrl->setcolreg(regno, red, green, blue, | |
1145 | transp, update_hw_pal); | |
1146 | */ | |
1147 | /* Fallthrough */ | |
1148 | r = -EINVAL; | |
1149 | break; | |
1150 | case OMAPFB_COLOR_RGB565: | |
1151 | case OMAPFB_COLOR_RGB444: | |
1152 | case OMAPFB_COLOR_RGB24P: | |
1153 | case OMAPFB_COLOR_RGB24U: | |
1154 | if (r != 0) | |
1155 | break; | |
1156 | ||
1157 | if (regno < 0) { | |
1158 | r = -EINVAL; | |
1159 | break; | |
1160 | } | |
1161 | ||
1162 | if (regno < 16) { | |
1163 | u16 pal; | |
1164 | pal = ((red >> (16 - var->red.length)) << | |
1165 | var->red.offset) | | |
1166 | ((green >> (16 - var->green.length)) << | |
1167 | var->green.offset) | | |
1168 | (blue >> (16 - var->blue.length)); | |
1169 | ((u32 *)(fbi->pseudo_palette))[regno] = pal; | |
1170 | } | |
1171 | break; | |
1172 | default: | |
1173 | BUG(); | |
1174 | } | |
1175 | return r; | |
1176 | } | |
1177 | ||
1178 | static int omapfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, | |
1179 | u_int transp, struct fb_info *info) | |
1180 | { | |
1181 | DBG("setcolreg\n"); | |
1182 | ||
1183 | return _setcolreg(info, regno, red, green, blue, transp, 1); | |
1184 | } | |
1185 | ||
1186 | static int omapfb_setcmap(struct fb_cmap *cmap, struct fb_info *info) | |
1187 | { | |
1188 | int count, index, r; | |
1189 | u16 *red, *green, *blue, *transp; | |
1190 | u16 trans = 0xffff; | |
1191 | ||
1192 | DBG("setcmap\n"); | |
1193 | ||
1194 | red = cmap->red; | |
1195 | green = cmap->green; | |
1196 | blue = cmap->blue; | |
1197 | transp = cmap->transp; | |
1198 | index = cmap->start; | |
1199 | ||
1200 | for (count = 0; count < cmap->len; count++) { | |
1201 | if (transp) | |
1202 | trans = *transp++; | |
1203 | r = _setcolreg(info, index++, *red++, *green++, *blue++, trans, | |
1204 | count == cmap->len - 1); | |
1205 | if (r != 0) | |
1206 | return r; | |
1207 | } | |
1208 | ||
1209 | return 0; | |
1210 | } | |
1211 | ||
1212 | static int omapfb_blank(int blank, struct fb_info *fbi) | |
1213 | { | |
1214 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
1215 | struct omapfb2_device *fbdev = ofbi->fbdev; | |
1216 | struct omap_dss_device *display = fb2display(fbi); | |
1217 | int do_update = 0; | |
1218 | int r = 0; | |
1219 | ||
1220 | omapfb_lock(fbdev); | |
1221 | ||
1222 | switch (blank) { | |
1223 | case FB_BLANK_UNBLANK: | |
1224 | if (display->state != OMAP_DSS_DISPLAY_SUSPENDED) | |
1225 | goto exit; | |
1226 | ||
37ac60e4 TV |
1227 | if (display->driver->resume) |
1228 | r = display->driver->resume(display); | |
b39a982d | 1229 | |
446f7bff TV |
1230 | if (r == 0 && display->driver->get_update_mode && |
1231 | display->driver->get_update_mode(display) == | |
b39a982d TV |
1232 | OMAP_DSS_UPDATE_MANUAL) |
1233 | do_update = 1; | |
1234 | ||
1235 | break; | |
1236 | ||
1237 | case FB_BLANK_NORMAL: | |
1238 | /* FB_BLANK_NORMAL could be implemented. | |
1239 | * Needs DSS additions. */ | |
1240 | case FB_BLANK_VSYNC_SUSPEND: | |
1241 | case FB_BLANK_HSYNC_SUSPEND: | |
1242 | case FB_BLANK_POWERDOWN: | |
1243 | if (display->state != OMAP_DSS_DISPLAY_ACTIVE) | |
1244 | goto exit; | |
1245 | ||
37ac60e4 TV |
1246 | if (display->driver->suspend) |
1247 | r = display->driver->suspend(display); | |
b39a982d TV |
1248 | |
1249 | break; | |
1250 | ||
1251 | default: | |
1252 | r = -EINVAL; | |
1253 | } | |
1254 | ||
1255 | exit: | |
1256 | omapfb_unlock(fbdev); | |
1257 | ||
18946f62 | 1258 | if (r == 0 && do_update && display->driver->update) { |
b39a982d | 1259 | u16 w, h; |
96adcece | 1260 | display->driver->get_resolution(display, &w, &h); |
b39a982d | 1261 | |
18946f62 | 1262 | r = display->driver->update(display, 0, 0, w, h); |
b39a982d TV |
1263 | } |
1264 | ||
1265 | return r; | |
1266 | } | |
1267 | ||
1268 | #if 0 | |
1269 | /* XXX fb_read and fb_write are needed for VRFB */ | |
1270 | ssize_t omapfb_write(struct fb_info *info, const char __user *buf, | |
1271 | size_t count, loff_t *ppos) | |
1272 | { | |
1273 | DBG("omapfb_write %d, %lu\n", count, (unsigned long)*ppos); | |
1274 | /* XXX needed for VRFB */ | |
1275 | return count; | |
1276 | } | |
1277 | #endif | |
1278 | ||
1279 | static struct fb_ops omapfb_ops = { | |
1280 | .owner = THIS_MODULE, | |
1281 | .fb_open = omapfb_open, | |
1282 | .fb_release = omapfb_release, | |
1283 | .fb_fillrect = cfb_fillrect, | |
1284 | .fb_copyarea = cfb_copyarea, | |
1285 | .fb_imageblit = cfb_imageblit, | |
1286 | .fb_blank = omapfb_blank, | |
1287 | .fb_ioctl = omapfb_ioctl, | |
1288 | .fb_check_var = omapfb_check_var, | |
1289 | .fb_set_par = omapfb_set_par, | |
1290 | .fb_pan_display = omapfb_pan_display, | |
1291 | .fb_mmap = omapfb_mmap, | |
1292 | .fb_setcolreg = omapfb_setcolreg, | |
1293 | .fb_setcmap = omapfb_setcmap, | |
1294 | /*.fb_write = omapfb_write,*/ | |
1295 | }; | |
1296 | ||
1297 | static void omapfb_free_fbmem(struct fb_info *fbi) | |
1298 | { | |
1299 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
1300 | struct omapfb2_device *fbdev = ofbi->fbdev; | |
1301 | struct omapfb2_mem_region *rg; | |
1302 | ||
1303 | rg = &ofbi->region; | |
1304 | ||
1305 | if (rg->paddr) | |
1306 | if (omap_vram_free(rg->paddr, rg->size)) | |
1307 | dev_err(fbdev->dev, "VRAM FREE failed\n"); | |
1308 | ||
1309 | if (rg->vaddr) | |
1310 | iounmap(rg->vaddr); | |
1311 | ||
1312 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { | |
1313 | /* unmap the 0 angle rotation */ | |
1314 | if (rg->vrfb.vaddr[0]) { | |
1315 | iounmap(rg->vrfb.vaddr[0]); | |
1316 | omap_vrfb_release_ctx(&rg->vrfb); | |
f3a82d11 | 1317 | rg->vrfb.vaddr[0] = NULL; |
b39a982d TV |
1318 | } |
1319 | } | |
1320 | ||
1321 | rg->vaddr = NULL; | |
1322 | rg->paddr = 0; | |
1323 | rg->alloc = 0; | |
1324 | rg->size = 0; | |
1325 | } | |
1326 | ||
1327 | static void clear_fb_info(struct fb_info *fbi) | |
1328 | { | |
1329 | memset(&fbi->var, 0, sizeof(fbi->var)); | |
1330 | memset(&fbi->fix, 0, sizeof(fbi->fix)); | |
1331 | strlcpy(fbi->fix.id, MODULE_NAME, sizeof(fbi->fix.id)); | |
1332 | } | |
1333 | ||
1334 | static int omapfb_free_all_fbmem(struct omapfb2_device *fbdev) | |
1335 | { | |
1336 | int i; | |
1337 | ||
1338 | DBG("free all fbmem\n"); | |
1339 | ||
1340 | for (i = 0; i < fbdev->num_fbs; i++) { | |
1341 | struct fb_info *fbi = fbdev->fbs[i]; | |
1342 | omapfb_free_fbmem(fbi); | |
1343 | clear_fb_info(fbi); | |
1344 | } | |
1345 | ||
1346 | return 0; | |
1347 | } | |
1348 | ||
1349 | static int omapfb_alloc_fbmem(struct fb_info *fbi, unsigned long size, | |
1350 | unsigned long paddr) | |
1351 | { | |
1352 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
1353 | struct omapfb2_device *fbdev = ofbi->fbdev; | |
1354 | struct omapfb2_mem_region *rg; | |
1355 | void __iomem *vaddr; | |
1356 | int r; | |
1357 | ||
1358 | rg = &ofbi->region; | |
1359 | memset(rg, 0, sizeof(*rg)); | |
1360 | ||
1361 | size = PAGE_ALIGN(size); | |
1362 | ||
1363 | if (!paddr) { | |
1364 | DBG("allocating %lu bytes for fb %d\n", size, ofbi->id); | |
1365 | r = omap_vram_alloc(OMAP_VRAM_MEMTYPE_SDRAM, size, &paddr); | |
1366 | } else { | |
1367 | DBG("reserving %lu bytes at %lx for fb %d\n", size, paddr, | |
1368 | ofbi->id); | |
1369 | r = omap_vram_reserve(paddr, size); | |
1370 | } | |
1371 | ||
1372 | if (r) { | |
1373 | dev_err(fbdev->dev, "failed to allocate framebuffer\n"); | |
1374 | return -ENOMEM; | |
1375 | } | |
1376 | ||
1377 | if (ofbi->rotation_type != OMAP_DSS_ROT_VRFB) { | |
1378 | vaddr = ioremap_wc(paddr, size); | |
1379 | ||
1380 | if (!vaddr) { | |
1381 | dev_err(fbdev->dev, "failed to ioremap framebuffer\n"); | |
1382 | omap_vram_free(paddr, size); | |
1383 | return -ENOMEM; | |
1384 | } | |
1385 | ||
1386 | DBG("allocated VRAM paddr %lx, vaddr %p\n", paddr, vaddr); | |
1387 | } else { | |
1388 | r = omap_vrfb_request_ctx(&rg->vrfb); | |
1389 | if (r) { | |
1390 | dev_err(fbdev->dev, "vrfb create ctx failed\n"); | |
1391 | return r; | |
1392 | } | |
1393 | ||
1394 | vaddr = NULL; | |
1395 | } | |
1396 | ||
1397 | rg->paddr = paddr; | |
1398 | rg->vaddr = vaddr; | |
1399 | rg->size = size; | |
1400 | rg->alloc = 1; | |
1401 | ||
1402 | return 0; | |
1403 | } | |
1404 | ||
1405 | /* allocate fbmem using display resolution as reference */ | |
1406 | static int omapfb_alloc_fbmem_display(struct fb_info *fbi, unsigned long size, | |
1407 | unsigned long paddr) | |
1408 | { | |
1409 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
a2699504 | 1410 | struct omapfb2_device *fbdev = ofbi->fbdev; |
b39a982d TV |
1411 | struct omap_dss_device *display; |
1412 | int bytespp; | |
1413 | ||
1414 | display = fb2display(fbi); | |
1415 | ||
1416 | if (!display) | |
1417 | return 0; | |
1418 | ||
a2699504 | 1419 | switch (omapfb_get_recommended_bpp(fbdev, display)) { |
b39a982d TV |
1420 | case 16: |
1421 | bytespp = 2; | |
1422 | break; | |
1423 | case 24: | |
1424 | bytespp = 4; | |
1425 | break; | |
1426 | default: | |
1427 | bytespp = 4; | |
1428 | break; | |
1429 | } | |
1430 | ||
1431 | if (!size) { | |
1432 | u16 w, h; | |
1433 | ||
96adcece | 1434 | display->driver->get_resolution(display, &w, &h); |
b39a982d TV |
1435 | |
1436 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { | |
1437 | size = max(omap_vrfb_min_phys_size(w, h, bytespp), | |
1438 | omap_vrfb_min_phys_size(h, w, bytespp)); | |
1439 | ||
1440 | DBG("adjusting fb mem size for VRFB, %u -> %lu\n", | |
1441 | w * h * bytespp, size); | |
1442 | } else { | |
1443 | size = w * h * bytespp; | |
1444 | } | |
1445 | } | |
1446 | ||
1447 | if (!size) | |
1448 | return 0; | |
1449 | ||
1450 | return omapfb_alloc_fbmem(fbi, size, paddr); | |
1451 | } | |
1452 | ||
1453 | static enum omap_color_mode fb_format_to_dss_mode(enum omapfb_color_format fmt) | |
1454 | { | |
1455 | enum omap_color_mode mode; | |
1456 | ||
1457 | switch (fmt) { | |
1458 | case OMAPFB_COLOR_RGB565: | |
1459 | mode = OMAP_DSS_COLOR_RGB16; | |
1460 | break; | |
1461 | case OMAPFB_COLOR_YUV422: | |
1462 | mode = OMAP_DSS_COLOR_YUV2; | |
1463 | break; | |
1464 | case OMAPFB_COLOR_CLUT_8BPP: | |
1465 | mode = OMAP_DSS_COLOR_CLUT8; | |
1466 | break; | |
1467 | case OMAPFB_COLOR_CLUT_4BPP: | |
1468 | mode = OMAP_DSS_COLOR_CLUT4; | |
1469 | break; | |
1470 | case OMAPFB_COLOR_CLUT_2BPP: | |
1471 | mode = OMAP_DSS_COLOR_CLUT2; | |
1472 | break; | |
1473 | case OMAPFB_COLOR_CLUT_1BPP: | |
1474 | mode = OMAP_DSS_COLOR_CLUT1; | |
1475 | break; | |
1476 | case OMAPFB_COLOR_RGB444: | |
1477 | mode = OMAP_DSS_COLOR_RGB12U; | |
1478 | break; | |
1479 | case OMAPFB_COLOR_YUY422: | |
1480 | mode = OMAP_DSS_COLOR_UYVY; | |
1481 | break; | |
1482 | case OMAPFB_COLOR_ARGB16: | |
1483 | mode = OMAP_DSS_COLOR_ARGB16; | |
1484 | break; | |
1485 | case OMAPFB_COLOR_RGB24U: | |
1486 | mode = OMAP_DSS_COLOR_RGB24U; | |
1487 | break; | |
1488 | case OMAPFB_COLOR_RGB24P: | |
1489 | mode = OMAP_DSS_COLOR_RGB24P; | |
1490 | break; | |
1491 | case OMAPFB_COLOR_ARGB32: | |
1492 | mode = OMAP_DSS_COLOR_ARGB32; | |
1493 | break; | |
1494 | case OMAPFB_COLOR_RGBA32: | |
1495 | mode = OMAP_DSS_COLOR_RGBA32; | |
1496 | break; | |
1497 | case OMAPFB_COLOR_RGBX32: | |
1498 | mode = OMAP_DSS_COLOR_RGBX32; | |
1499 | break; | |
1500 | default: | |
1501 | mode = -EINVAL; | |
1502 | } | |
1503 | ||
1504 | return mode; | |
1505 | } | |
1506 | ||
1507 | static int omapfb_parse_vram_param(const char *param, int max_entries, | |
1508 | unsigned long *sizes, unsigned long *paddrs) | |
1509 | { | |
1510 | int fbnum; | |
1511 | unsigned long size; | |
1512 | unsigned long paddr = 0; | |
1513 | char *p, *start; | |
1514 | ||
1515 | start = (char *)param; | |
1516 | ||
1517 | while (1) { | |
1518 | p = start; | |
1519 | ||
1520 | fbnum = simple_strtoul(p, &p, 10); | |
1521 | ||
1522 | if (p == param) | |
1523 | return -EINVAL; | |
1524 | ||
1525 | if (*p != ':') | |
1526 | return -EINVAL; | |
1527 | ||
1528 | if (fbnum >= max_entries) | |
1529 | return -EINVAL; | |
1530 | ||
1531 | size = memparse(p + 1, &p); | |
1532 | ||
1533 | if (!size) | |
1534 | return -EINVAL; | |
1535 | ||
1536 | paddr = 0; | |
1537 | ||
1538 | if (*p == '@') { | |
1539 | paddr = simple_strtoul(p + 1, &p, 16); | |
1540 | ||
1541 | if (!paddr) | |
1542 | return -EINVAL; | |
1543 | ||
1544 | } | |
1545 | ||
1546 | paddrs[fbnum] = paddr; | |
1547 | sizes[fbnum] = size; | |
1548 | ||
1549 | if (*p == 0) | |
1550 | break; | |
1551 | ||
1552 | if (*p != ',') | |
1553 | return -EINVAL; | |
1554 | ||
1555 | ++p; | |
1556 | ||
1557 | start = p; | |
1558 | } | |
1559 | ||
1560 | return 0; | |
1561 | } | |
1562 | ||
1563 | static int omapfb_allocate_all_fbs(struct omapfb2_device *fbdev) | |
1564 | { | |
1565 | int i, r; | |
1566 | unsigned long vram_sizes[10]; | |
1567 | unsigned long vram_paddrs[10]; | |
1568 | ||
1569 | memset(&vram_sizes, 0, sizeof(vram_sizes)); | |
1570 | memset(&vram_paddrs, 0, sizeof(vram_paddrs)); | |
1571 | ||
1572 | if (def_vram && omapfb_parse_vram_param(def_vram, 10, | |
1573 | vram_sizes, vram_paddrs)) { | |
1574 | dev_err(fbdev->dev, "failed to parse vram parameter\n"); | |
1575 | ||
1576 | memset(&vram_sizes, 0, sizeof(vram_sizes)); | |
1577 | memset(&vram_paddrs, 0, sizeof(vram_paddrs)); | |
1578 | } | |
1579 | ||
1580 | if (fbdev->dev->platform_data) { | |
1581 | struct omapfb_platform_data *opd; | |
1582 | opd = fbdev->dev->platform_data; | |
1583 | for (i = 0; i < opd->mem_desc.region_cnt; ++i) { | |
1584 | if (!vram_sizes[i]) { | |
1585 | unsigned long size; | |
1586 | unsigned long paddr; | |
1587 | ||
1588 | size = opd->mem_desc.region[i].size; | |
1589 | paddr = opd->mem_desc.region[i].paddr; | |
1590 | ||
1591 | vram_sizes[i] = size; | |
1592 | vram_paddrs[i] = paddr; | |
1593 | } | |
1594 | } | |
1595 | } | |
1596 | ||
1597 | for (i = 0; i < fbdev->num_fbs; i++) { | |
1598 | /* allocate memory automatically only for fb0, or if | |
1599 | * excplicitly defined with vram or plat data option */ | |
1600 | if (i == 0 || vram_sizes[i] != 0) { | |
1601 | r = omapfb_alloc_fbmem_display(fbdev->fbs[i], | |
1602 | vram_sizes[i], vram_paddrs[i]); | |
1603 | ||
1604 | if (r) | |
1605 | return r; | |
1606 | } | |
1607 | } | |
1608 | ||
1609 | for (i = 0; i < fbdev->num_fbs; i++) { | |
1610 | struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]); | |
1611 | struct omapfb2_mem_region *rg; | |
1612 | rg = &ofbi->region; | |
1613 | ||
1614 | DBG("region%d phys %08x virt %p size=%lu\n", | |
1615 | i, | |
1616 | rg->paddr, | |
1617 | rg->vaddr, | |
1618 | rg->size); | |
1619 | } | |
1620 | ||
1621 | return 0; | |
1622 | } | |
1623 | ||
1624 | int omapfb_realloc_fbmem(struct fb_info *fbi, unsigned long size, int type) | |
1625 | { | |
1626 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
1627 | struct omapfb2_device *fbdev = ofbi->fbdev; | |
1628 | struct omap_dss_device *display = fb2display(fbi); | |
1629 | struct omapfb2_mem_region *rg = &ofbi->region; | |
1630 | unsigned long old_size = rg->size; | |
1631 | unsigned long old_paddr = rg->paddr; | |
1632 | int old_type = rg->type; | |
1633 | int r; | |
1634 | ||
1635 | if (type > OMAPFB_MEMTYPE_MAX) | |
1636 | return -EINVAL; | |
1637 | ||
1638 | size = PAGE_ALIGN(size); | |
1639 | ||
1640 | if (old_size == size && old_type == type) | |
1641 | return 0; | |
1642 | ||
18946f62 TV |
1643 | if (display && display->driver->sync) |
1644 | display->driver->sync(display); | |
b39a982d TV |
1645 | |
1646 | omapfb_free_fbmem(fbi); | |
1647 | ||
1648 | if (size == 0) { | |
1649 | clear_fb_info(fbi); | |
1650 | return 0; | |
1651 | } | |
1652 | ||
1653 | r = omapfb_alloc_fbmem(fbi, size, 0); | |
1654 | ||
1655 | if (r) { | |
1656 | if (old_size) | |
1657 | omapfb_alloc_fbmem(fbi, old_size, old_paddr); | |
1658 | ||
1659 | if (rg->size == 0) | |
1660 | clear_fb_info(fbi); | |
1661 | ||
1662 | return r; | |
1663 | } | |
1664 | ||
1665 | if (old_size == size) | |
1666 | return 0; | |
1667 | ||
1668 | if (old_size == 0) { | |
1669 | DBG("initializing fb %d\n", ofbi->id); | |
1670 | r = omapfb_fb_init(fbdev, fbi); | |
1671 | if (r) { | |
1672 | DBG("omapfb_fb_init failed\n"); | |
1673 | goto err; | |
1674 | } | |
1675 | r = omapfb_apply_changes(fbi, 1); | |
1676 | if (r) { | |
1677 | DBG("omapfb_apply_changes failed\n"); | |
1678 | goto err; | |
1679 | } | |
1680 | } else { | |
1681 | struct fb_var_screeninfo new_var; | |
1682 | memcpy(&new_var, &fbi->var, sizeof(new_var)); | |
1683 | r = check_fb_var(fbi, &new_var); | |
1684 | if (r) | |
1685 | goto err; | |
1686 | memcpy(&fbi->var, &new_var, sizeof(fbi->var)); | |
1687 | set_fb_fix(fbi); | |
1688 | r = setup_vrfb_rotation(fbi); | |
1689 | if (r) | |
1690 | goto err; | |
1691 | } | |
1692 | ||
1693 | return 0; | |
1694 | err: | |
1695 | omapfb_free_fbmem(fbi); | |
1696 | clear_fb_info(fbi); | |
1697 | return r; | |
1698 | } | |
1699 | ||
1700 | /* initialize fb_info, var, fix to something sane based on the display */ | |
1701 | static int omapfb_fb_init(struct omapfb2_device *fbdev, struct fb_info *fbi) | |
1702 | { | |
1703 | struct fb_var_screeninfo *var = &fbi->var; | |
1704 | struct omap_dss_device *display = fb2display(fbi); | |
1705 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
1706 | int r = 0; | |
1707 | ||
1708 | fbi->fbops = &omapfb_ops; | |
1709 | fbi->flags = FBINFO_FLAG_DEFAULT; | |
1710 | fbi->pseudo_palette = fbdev->pseudo_palette; | |
1711 | ||
1712 | if (ofbi->region.size == 0) { | |
1713 | clear_fb_info(fbi); | |
1714 | return 0; | |
1715 | } | |
1716 | ||
1717 | var->nonstd = 0; | |
1718 | var->bits_per_pixel = 0; | |
1719 | ||
1720 | var->rotate = def_rotate; | |
1721 | ||
1722 | /* | |
1723 | * Check if there is a default color format set in the board file, | |
1724 | * and use this format instead the default deducted from the | |
1725 | * display bpp. | |
1726 | */ | |
1727 | if (fbdev->dev->platform_data) { | |
1728 | struct omapfb_platform_data *opd; | |
1729 | int id = ofbi->id; | |
1730 | ||
1731 | opd = fbdev->dev->platform_data; | |
1732 | if (opd->mem_desc.region[id].format_used) { | |
1733 | enum omap_color_mode mode; | |
1734 | enum omapfb_color_format format; | |
1735 | ||
1736 | format = opd->mem_desc.region[id].format; | |
1737 | mode = fb_format_to_dss_mode(format); | |
1738 | if (mode < 0) { | |
1739 | r = mode; | |
1740 | goto err; | |
1741 | } | |
1742 | r = dss_mode_to_fb_mode(mode, var); | |
1743 | if (r < 0) | |
1744 | goto err; | |
1745 | } | |
1746 | } | |
1747 | ||
1748 | if (display) { | |
1749 | u16 w, h; | |
1750 | int rotation = (var->rotate + ofbi->rotation[0]) % 4; | |
1751 | ||
96adcece | 1752 | display->driver->get_resolution(display, &w, &h); |
b39a982d TV |
1753 | |
1754 | if (rotation == FB_ROTATE_CW || | |
1755 | rotation == FB_ROTATE_CCW) { | |
1756 | var->xres = h; | |
1757 | var->yres = w; | |
1758 | } else { | |
1759 | var->xres = w; | |
1760 | var->yres = h; | |
1761 | } | |
1762 | ||
1763 | var->xres_virtual = var->xres; | |
1764 | var->yres_virtual = var->yres; | |
1765 | ||
1766 | if (!var->bits_per_pixel) { | |
a2699504 | 1767 | switch (omapfb_get_recommended_bpp(fbdev, display)) { |
b39a982d TV |
1768 | case 16: |
1769 | var->bits_per_pixel = 16; | |
1770 | break; | |
1771 | case 24: | |
1772 | var->bits_per_pixel = 32; | |
1773 | break; | |
1774 | default: | |
1775 | dev_err(fbdev->dev, "illegal display " | |
1776 | "bpp\n"); | |
1777 | return -EINVAL; | |
1778 | } | |
1779 | } | |
1780 | } else { | |
1781 | /* if there's no display, let's just guess some basic values */ | |
1782 | var->xres = 320; | |
1783 | var->yres = 240; | |
1784 | var->xres_virtual = var->xres; | |
1785 | var->yres_virtual = var->yres; | |
1786 | if (!var->bits_per_pixel) | |
1787 | var->bits_per_pixel = 16; | |
1788 | } | |
1789 | ||
1790 | r = check_fb_var(fbi, var); | |
1791 | if (r) | |
1792 | goto err; | |
1793 | ||
1794 | set_fb_fix(fbi); | |
1795 | r = setup_vrfb_rotation(fbi); | |
1796 | if (r) | |
1797 | goto err; | |
1798 | ||
1799 | r = fb_alloc_cmap(&fbi->cmap, 256, 0); | |
1800 | if (r) | |
1801 | dev_err(fbdev->dev, "unable to allocate color map memory\n"); | |
1802 | ||
1803 | err: | |
1804 | return r; | |
1805 | } | |
1806 | ||
1807 | static void fbinfo_cleanup(struct omapfb2_device *fbdev, struct fb_info *fbi) | |
1808 | { | |
1809 | fb_dealloc_cmap(&fbi->cmap); | |
1810 | } | |
1811 | ||
1812 | ||
1813 | static void omapfb_free_resources(struct omapfb2_device *fbdev) | |
1814 | { | |
1815 | int i; | |
1816 | ||
1817 | DBG("free_resources\n"); | |
1818 | ||
1819 | if (fbdev == NULL) | |
1820 | return; | |
1821 | ||
1822 | for (i = 0; i < fbdev->num_fbs; i++) | |
1823 | unregister_framebuffer(fbdev->fbs[i]); | |
1824 | ||
1825 | /* free the reserved fbmem */ | |
1826 | omapfb_free_all_fbmem(fbdev); | |
1827 | ||
1828 | for (i = 0; i < fbdev->num_fbs; i++) { | |
1829 | fbinfo_cleanup(fbdev, fbdev->fbs[i]); | |
1830 | framebuffer_release(fbdev->fbs[i]); | |
1831 | } | |
1832 | ||
1833 | for (i = 0; i < fbdev->num_displays; i++) { | |
1834 | if (fbdev->displays[i]->state != OMAP_DSS_DISPLAY_DISABLED) | |
37ac60e4 | 1835 | fbdev->displays[i]->driver->disable(fbdev->displays[i]); |
b39a982d TV |
1836 | |
1837 | omap_dss_put_device(fbdev->displays[i]); | |
1838 | } | |
1839 | ||
1840 | dev_set_drvdata(fbdev->dev, NULL); | |
1841 | kfree(fbdev); | |
1842 | } | |
1843 | ||
1844 | static int omapfb_create_framebuffers(struct omapfb2_device *fbdev) | |
1845 | { | |
1846 | int r, i; | |
1847 | ||
1848 | fbdev->num_fbs = 0; | |
1849 | ||
1850 | DBG("create %d framebuffers\n", CONFIG_FB_OMAP2_NUM_FBS); | |
1851 | ||
1852 | /* allocate fb_infos */ | |
1853 | for (i = 0; i < CONFIG_FB_OMAP2_NUM_FBS; i++) { | |
1854 | struct fb_info *fbi; | |
1855 | struct omapfb_info *ofbi; | |
1856 | ||
1857 | fbi = framebuffer_alloc(sizeof(struct omapfb_info), | |
1858 | fbdev->dev); | |
1859 | ||
1860 | if (fbi == NULL) { | |
1861 | dev_err(fbdev->dev, | |
1862 | "unable to allocate memory for plane info\n"); | |
1863 | return -ENOMEM; | |
1864 | } | |
1865 | ||
1866 | clear_fb_info(fbi); | |
1867 | ||
1868 | fbdev->fbs[i] = fbi; | |
1869 | ||
1870 | ofbi = FB2OFB(fbi); | |
1871 | ofbi->fbdev = fbdev; | |
1872 | ofbi->id = i; | |
1873 | ||
1874 | /* assign these early, so that fb alloc can use them */ | |
1875 | ofbi->rotation_type = def_vrfb ? OMAP_DSS_ROT_VRFB : | |
1876 | OMAP_DSS_ROT_DMA; | |
1877 | ofbi->mirror = def_mirror; | |
1878 | ||
1879 | fbdev->num_fbs++; | |
1880 | } | |
1881 | ||
1882 | DBG("fb_infos allocated\n"); | |
1883 | ||
1884 | /* assign overlays for the fbs */ | |
1885 | for (i = 0; i < min(fbdev->num_fbs, fbdev->num_overlays); i++) { | |
1886 | struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]); | |
1887 | ||
1888 | ofbi->overlays[0] = fbdev->overlays[i]; | |
1889 | ofbi->num_overlays = 1; | |
1890 | } | |
1891 | ||
1892 | /* allocate fb memories */ | |
1893 | r = omapfb_allocate_all_fbs(fbdev); | |
1894 | if (r) { | |
1895 | dev_err(fbdev->dev, "failed to allocate fbmem\n"); | |
1896 | return r; | |
1897 | } | |
1898 | ||
1899 | DBG("fbmems allocated\n"); | |
1900 | ||
1901 | /* setup fb_infos */ | |
1902 | for (i = 0; i < fbdev->num_fbs; i++) { | |
1903 | r = omapfb_fb_init(fbdev, fbdev->fbs[i]); | |
1904 | if (r) { | |
1905 | dev_err(fbdev->dev, "failed to setup fb_info\n"); | |
1906 | return r; | |
1907 | } | |
1908 | } | |
1909 | ||
1910 | DBG("fb_infos initialized\n"); | |
1911 | ||
1912 | for (i = 0; i < fbdev->num_fbs; i++) { | |
1913 | r = register_framebuffer(fbdev->fbs[i]); | |
1914 | if (r != 0) { | |
1915 | dev_err(fbdev->dev, | |
1916 | "registering framebuffer %d failed\n", i); | |
1917 | return r; | |
1918 | } | |
1919 | } | |
1920 | ||
1921 | DBG("framebuffers registered\n"); | |
1922 | ||
1923 | for (i = 0; i < fbdev->num_fbs; i++) { | |
1924 | r = omapfb_apply_changes(fbdev->fbs[i], 1); | |
1925 | if (r) { | |
1926 | dev_err(fbdev->dev, "failed to change mode\n"); | |
1927 | return r; | |
1928 | } | |
1929 | } | |
1930 | ||
1931 | DBG("create sysfs for fbs\n"); | |
1932 | r = omapfb_create_sysfs(fbdev); | |
1933 | if (r) { | |
1934 | dev_err(fbdev->dev, "failed to create sysfs entries\n"); | |
1935 | return r; | |
1936 | } | |
1937 | ||
1938 | /* Enable fb0 */ | |
1939 | if (fbdev->num_fbs > 0) { | |
1940 | struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[0]); | |
1941 | ||
1942 | if (ofbi->num_overlays > 0) { | |
1943 | struct omap_overlay *ovl = ofbi->overlays[0]; | |
1944 | ||
1945 | r = omapfb_overlay_enable(ovl, 1); | |
1946 | ||
1947 | if (r) { | |
1948 | dev_err(fbdev->dev, | |
1949 | "failed to enable overlay\n"); | |
1950 | return r; | |
1951 | } | |
1952 | } | |
1953 | } | |
1954 | ||
1955 | DBG("create_framebuffers done\n"); | |
1956 | ||
1957 | return 0; | |
1958 | } | |
1959 | ||
1960 | static int omapfb_mode_to_timings(const char *mode_str, | |
1961 | struct omap_video_timings *timings, u8 *bpp) | |
1962 | { | |
1963 | struct fb_info fbi; | |
1964 | struct fb_var_screeninfo var; | |
1965 | struct fb_ops fbops; | |
1966 | int r; | |
1967 | ||
1968 | #ifdef CONFIG_OMAP2_DSS_VENC | |
1969 | if (strcmp(mode_str, "pal") == 0) { | |
1970 | *timings = omap_dss_pal_timings; | |
1971 | *bpp = 0; | |
1972 | return 0; | |
1973 | } else if (strcmp(mode_str, "ntsc") == 0) { | |
1974 | *timings = omap_dss_ntsc_timings; | |
1975 | *bpp = 0; | |
1976 | return 0; | |
1977 | } | |
1978 | #endif | |
1979 | ||
1980 | /* this is quite a hack, but I wanted to use the modedb and for | |
1981 | * that we need fb_info and var, so we create dummy ones */ | |
1982 | ||
1983 | memset(&fbi, 0, sizeof(fbi)); | |
1984 | memset(&var, 0, sizeof(var)); | |
1985 | memset(&fbops, 0, sizeof(fbops)); | |
1986 | fbi.fbops = &fbops; | |
1987 | ||
1988 | r = fb_find_mode(&var, &fbi, mode_str, NULL, 0, NULL, 24); | |
1989 | ||
1990 | if (r != 0) { | |
1991 | timings->pixel_clock = PICOS2KHZ(var.pixclock); | |
1992 | timings->hfp = var.left_margin; | |
1993 | timings->hbp = var.right_margin; | |
1994 | timings->vfp = var.upper_margin; | |
1995 | timings->vbp = var.lower_margin; | |
1996 | timings->hsw = var.hsync_len; | |
1997 | timings->vsw = var.vsync_len; | |
1998 | timings->x_res = var.xres; | |
1999 | timings->y_res = var.yres; | |
2000 | ||
2001 | switch (var.bits_per_pixel) { | |
2002 | case 16: | |
2003 | *bpp = 16; | |
2004 | break; | |
2005 | case 24: | |
2006 | case 32: | |
2007 | default: | |
2008 | *bpp = 24; | |
2009 | break; | |
2010 | } | |
2011 | ||
2012 | return 0; | |
2013 | } else { | |
2014 | return -EINVAL; | |
2015 | } | |
2016 | } | |
2017 | ||
a2699504 TV |
2018 | static int omapfb_set_def_mode(struct omapfb2_device *fbdev, |
2019 | struct omap_dss_device *display, char *mode_str) | |
b39a982d TV |
2020 | { |
2021 | int r; | |
2022 | u8 bpp; | |
2023 | struct omap_video_timings timings; | |
2024 | ||
2025 | r = omapfb_mode_to_timings(mode_str, &timings, &bpp); | |
2026 | if (r) | |
2027 | return r; | |
2028 | ||
a2699504 TV |
2029 | fbdev->bpp_overrides[fbdev->num_bpp_overrides].dssdev = display; |
2030 | fbdev->bpp_overrides[fbdev->num_bpp_overrides].bpp = bpp; | |
2031 | ++fbdev->num_bpp_overrides; | |
b39a982d | 2032 | |
69b2048f | 2033 | if (!display->driver->check_timings || !display->driver->set_timings) |
b39a982d TV |
2034 | return -EINVAL; |
2035 | ||
69b2048f | 2036 | r = display->driver->check_timings(display, &timings); |
b39a982d TV |
2037 | if (r) |
2038 | return r; | |
2039 | ||
69b2048f | 2040 | display->driver->set_timings(display, &timings); |
b39a982d TV |
2041 | |
2042 | return 0; | |
2043 | } | |
2044 | ||
a2699504 TV |
2045 | static int omapfb_get_recommended_bpp(struct omapfb2_device *fbdev, |
2046 | struct omap_dss_device *dssdev) | |
2047 | { | |
2048 | int i; | |
2049 | ||
2050 | BUG_ON(dssdev->driver->get_recommended_bpp == NULL); | |
2051 | ||
2052 | for (i = 0; i < fbdev->num_bpp_overrides; ++i) { | |
2053 | if (dssdev == fbdev->bpp_overrides[i].dssdev) | |
2054 | return fbdev->bpp_overrides[i].bpp; | |
2055 | } | |
2056 | ||
2057 | return dssdev->driver->get_recommended_bpp(dssdev); | |
2058 | } | |
2059 | ||
b39a982d TV |
2060 | static int omapfb_parse_def_modes(struct omapfb2_device *fbdev) |
2061 | { | |
2062 | char *str, *options, *this_opt; | |
2063 | int r = 0; | |
2064 | ||
2065 | str = kmalloc(strlen(def_mode) + 1, GFP_KERNEL); | |
2066 | strcpy(str, def_mode); | |
2067 | options = str; | |
2068 | ||
2069 | while (!r && (this_opt = strsep(&options, ",")) != NULL) { | |
2070 | char *p, *display_str, *mode_str; | |
2071 | struct omap_dss_device *display; | |
2072 | int i; | |
2073 | ||
2074 | p = strchr(this_opt, ':'); | |
2075 | if (!p) { | |
2076 | r = -EINVAL; | |
2077 | break; | |
2078 | } | |
2079 | ||
2080 | *p = 0; | |
2081 | display_str = this_opt; | |
2082 | mode_str = p + 1; | |
2083 | ||
2084 | display = NULL; | |
2085 | for (i = 0; i < fbdev->num_displays; ++i) { | |
2086 | if (strcmp(fbdev->displays[i]->name, | |
2087 | display_str) == 0) { | |
2088 | display = fbdev->displays[i]; | |
2089 | break; | |
2090 | } | |
2091 | } | |
2092 | ||
2093 | if (!display) { | |
2094 | r = -EINVAL; | |
2095 | break; | |
2096 | } | |
2097 | ||
a2699504 | 2098 | r = omapfb_set_def_mode(fbdev, display, mode_str); |
b39a982d TV |
2099 | if (r) |
2100 | break; | |
2101 | } | |
2102 | ||
2103 | kfree(str); | |
2104 | ||
2105 | return r; | |
2106 | } | |
2107 | ||
2108 | static int omapfb_probe(struct platform_device *pdev) | |
2109 | { | |
2110 | struct omapfb2_device *fbdev = NULL; | |
2111 | int r = 0; | |
2112 | int i; | |
2113 | struct omap_overlay *ovl; | |
2114 | struct omap_dss_device *def_display; | |
2115 | struct omap_dss_device *dssdev; | |
2116 | ||
2117 | DBG("omapfb_probe\n"); | |
2118 | ||
2119 | if (pdev->num_resources != 0) { | |
2120 | dev_err(&pdev->dev, "probed for an unknown device\n"); | |
2121 | r = -ENODEV; | |
2122 | goto err0; | |
2123 | } | |
2124 | ||
2125 | fbdev = kzalloc(sizeof(struct omapfb2_device), GFP_KERNEL); | |
2126 | if (fbdev == NULL) { | |
2127 | r = -ENOMEM; | |
2128 | goto err0; | |
2129 | } | |
2130 | ||
2131 | mutex_init(&fbdev->mtx); | |
2132 | ||
2133 | fbdev->dev = &pdev->dev; | |
2134 | platform_set_drvdata(pdev, fbdev); | |
2135 | ||
b3f91eb8 | 2136 | r = 0; |
b39a982d TV |
2137 | fbdev->num_displays = 0; |
2138 | dssdev = NULL; | |
2139 | for_each_dss_dev(dssdev) { | |
2140 | omap_dss_get_device(dssdev); | |
b3f91eb8 | 2141 | |
807a7515 TV |
2142 | if (!dssdev->driver) { |
2143 | dev_err(&pdev->dev, "no driver for display\n"); | |
b3f91eb8 | 2144 | r = -ENODEV; |
807a7515 | 2145 | } |
b3f91eb8 | 2146 | |
b39a982d TV |
2147 | fbdev->displays[fbdev->num_displays++] = dssdev; |
2148 | } | |
2149 | ||
b3f91eb8 TV |
2150 | if (r) |
2151 | goto cleanup; | |
2152 | ||
b39a982d TV |
2153 | if (fbdev->num_displays == 0) { |
2154 | dev_err(&pdev->dev, "no displays\n"); | |
2155 | r = -EINVAL; | |
2156 | goto cleanup; | |
2157 | } | |
2158 | ||
2159 | fbdev->num_overlays = omap_dss_get_num_overlays(); | |
2160 | for (i = 0; i < fbdev->num_overlays; i++) | |
2161 | fbdev->overlays[i] = omap_dss_get_overlay(i); | |
2162 | ||
2163 | fbdev->num_managers = omap_dss_get_num_overlay_managers(); | |
2164 | for (i = 0; i < fbdev->num_managers; i++) | |
2165 | fbdev->managers[i] = omap_dss_get_overlay_manager(i); | |
2166 | ||
2167 | if (def_mode && strlen(def_mode) > 0) { | |
2168 | if (omapfb_parse_def_modes(fbdev)) | |
2169 | dev_warn(&pdev->dev, "cannot parse default modes\n"); | |
2170 | } | |
2171 | ||
2172 | r = omapfb_create_framebuffers(fbdev); | |
2173 | if (r) | |
2174 | goto cleanup; | |
2175 | ||
2176 | for (i = 0; i < fbdev->num_managers; i++) { | |
2177 | struct omap_overlay_manager *mgr; | |
2178 | mgr = fbdev->managers[i]; | |
2179 | r = mgr->apply(mgr); | |
2180 | if (r) | |
2181 | dev_warn(fbdev->dev, "failed to apply dispc config\n"); | |
2182 | } | |
2183 | ||
2184 | DBG("mgr->apply'ed\n"); | |
2185 | ||
2186 | /* gfx overlay should be the default one. find a display | |
2187 | * connected to that, and use it as default display */ | |
2188 | ovl = omap_dss_get_overlay(0); | |
2189 | if (ovl->manager && ovl->manager->device) { | |
2190 | def_display = ovl->manager->device; | |
2191 | } else { | |
2192 | dev_warn(&pdev->dev, "cannot find default display\n"); | |
2193 | def_display = NULL; | |
2194 | } | |
2195 | ||
2196 | if (def_display) { | |
446f7bff | 2197 | struct omap_dss_driver *dssdrv = def_display->driver; |
ddbfeb39 | 2198 | |
37ac60e4 | 2199 | r = def_display->driver->enable(def_display); |
6d2e0bd6 | 2200 | if (r) { |
b39a982d TV |
2201 | dev_warn(fbdev->dev, "Failed to enable display '%s'\n", |
2202 | def_display->name); | |
6d2e0bd6 TV |
2203 | goto cleanup; |
2204 | } | |
b39a982d | 2205 | |
b39a982d | 2206 | if (def_display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) { |
ddbfeb39 | 2207 | u16 w, h; |
446f7bff TV |
2208 | if (dssdrv->enable_te) |
2209 | dssdrv->enable_te(def_display, 1); | |
446f7bff TV |
2210 | if (dssdrv->set_update_mode) |
2211 | dssdrv->set_update_mode(def_display, | |
b39a982d TV |
2212 | OMAP_DSS_UPDATE_MANUAL); |
2213 | ||
ddbfeb39 | 2214 | dssdrv->get_resolution(def_display, &w, &h); |
18946f62 | 2215 | def_display->driver->update(def_display, 0, 0, w, h); |
b39a982d | 2216 | } else { |
446f7bff TV |
2217 | if (dssdrv->set_update_mode) |
2218 | dssdrv->set_update_mode(def_display, | |
b39a982d TV |
2219 | OMAP_DSS_UPDATE_AUTO); |
2220 | } | |
2221 | } | |
2222 | ||
2223 | return 0; | |
2224 | ||
2225 | cleanup: | |
2226 | omapfb_free_resources(fbdev); | |
2227 | err0: | |
2228 | dev_err(&pdev->dev, "failed to setup omapfb\n"); | |
2229 | return r; | |
2230 | } | |
2231 | ||
2232 | static int omapfb_remove(struct platform_device *pdev) | |
2233 | { | |
2234 | struct omapfb2_device *fbdev = platform_get_drvdata(pdev); | |
2235 | ||
2236 | /* FIXME: wait till completion of pending events */ | |
2237 | ||
2238 | omapfb_remove_sysfs(fbdev); | |
2239 | ||
2240 | omapfb_free_resources(fbdev); | |
2241 | ||
2242 | return 0; | |
2243 | } | |
2244 | ||
2245 | static struct platform_driver omapfb_driver = { | |
2246 | .probe = omapfb_probe, | |
2247 | .remove = omapfb_remove, | |
2248 | .driver = { | |
2249 | .name = "omapfb", | |
2250 | .owner = THIS_MODULE, | |
2251 | }, | |
2252 | }; | |
2253 | ||
2254 | static int __init omapfb_init(void) | |
2255 | { | |
2256 | DBG("omapfb_init\n"); | |
2257 | ||
2258 | if (platform_driver_register(&omapfb_driver)) { | |
2259 | printk(KERN_ERR "failed to register omapfb driver\n"); | |
2260 | return -ENODEV; | |
2261 | } | |
2262 | ||
2263 | return 0; | |
2264 | } | |
2265 | ||
2266 | static void __exit omapfb_exit(void) | |
2267 | { | |
2268 | DBG("omapfb_exit\n"); | |
2269 | platform_driver_unregister(&omapfb_driver); | |
2270 | } | |
2271 | ||
2272 | module_param_named(mode, def_mode, charp, 0); | |
2273 | module_param_named(vram, def_vram, charp, 0); | |
2274 | module_param_named(rotate, def_rotate, int, 0); | |
2275 | module_param_named(vrfb, def_vrfb, bool, 0); | |
2276 | module_param_named(mirror, def_mirror, bool, 0); | |
2277 | ||
2278 | /* late_initcall to let panel/ctrl drivers loaded first. | |
2279 | * I guess better option would be a more dynamic approach, | |
2280 | * so that omapfb reacts to new panels when they are loaded */ | |
2281 | late_initcall(omapfb_init); | |
2282 | /*module_init(omapfb_init);*/ | |
2283 | module_exit(omapfb_exit); | |
2284 | ||
2285 | MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@nokia.com>"); | |
2286 | MODULE_DESCRIPTION("OMAP2/3 Framebuffer"); | |
2287 | MODULE_LICENSE("GPL v2"); |