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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 | ||
a0b38cc4 | 33 | #include <video/omapdss.h> |
b39a982d TV |
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 | { |
078ff546 | 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) { | |
078ff546 | 188 | return ofbi->region->vrfb.paddr[rot] |
b39a982d TV |
189 | + omapfb_get_vrfb_offset(ofbi, rot); |
190 | } else { | |
078ff546 | 191 | return ofbi->region->paddr; |
b39a982d TV |
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) | |
078ff546 | 198 | return ofbi->region->vrfb.paddr[0]; |
b39a982d | 199 | else |
078ff546 | 200 | return ofbi->region->paddr; |
b39a982d TV |
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) | |
078ff546 | 206 | return ofbi->region->vrfb.vaddr[0]; |
b39a982d | 207 | else |
078ff546 | 208 | return ofbi->region->vaddr; |
b39a982d TV |
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 | { | |
078ff546 | 453 | unsigned long max_frame_size = ofbi->region->size; |
b39a982d TV |
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); | |
078ff546 | 500 | struct omapfb2_mem_region *rg = ofbi->region; |
b39a982d TV |
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 */ | |
078ff546 | 561 | fbi->screen_base = ofbi->region->vrfb.vaddr[0]; |
b39a982d | 562 | |
078ff546 | 563 | fix->smem_start = ofbi->region->vrfb.paddr[0]; |
b39a982d TV |
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); | |
078ff546 | 602 | struct omapfb2_mem_region *rg = ofbi->region; |
b39a982d TV |
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 | ||
1ceafc00 VS |
671 | WARN_ON(!atomic_read(&ofbi->region->lock_count)); |
672 | ||
b39a982d TV |
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 | ||
86f2d7dd | 686 | if (var->rotate > 3) |
b39a982d TV |
687 | return -EINVAL; |
688 | ||
689 | if (check_fb_res_bounds(var)) | |
690 | return -EINVAL; | |
691 | ||
276a1d43 | 692 | /* When no memory is allocated ignore the size check */ |
078ff546 | 693 | if (ofbi->region->size != 0 && check_fb_size(ofbi, var)) |
b39a982d TV |
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 | ||
7a0987bf JN |
705 | if (display && display->driver->get_dimensions) { |
706 | u32 w, h; | |
707 | display->driver->get_dimensions(display, &w, &h); | |
708 | var->width = DIV_ROUND_CLOSEST(w, 1000); | |
709 | var->height = DIV_ROUND_CLOSEST(h, 1000); | |
710 | } else { | |
711 | var->height = -1; | |
712 | var->width = -1; | |
713 | } | |
714 | ||
b39a982d TV |
715 | var->grayscale = 0; |
716 | ||
69b2048f | 717 | if (display && display->driver->get_timings) { |
b39a982d | 718 | struct omap_video_timings timings; |
69b2048f | 719 | display->driver->get_timings(display, &timings); |
b39a982d TV |
720 | |
721 | /* pixclock in ps, the rest in pixclock */ | |
722 | var->pixclock = timings.pixel_clock != 0 ? | |
723 | KHZ2PICOS(timings.pixel_clock) : | |
724 | 0; | |
87ba8288 TK |
725 | var->left_margin = timings.hbp; |
726 | var->right_margin = timings.hfp; | |
727 | var->upper_margin = timings.vbp; | |
728 | var->lower_margin = timings.vfp; | |
b39a982d TV |
729 | var->hsync_len = timings.hsw; |
730 | var->vsync_len = timings.vsw; | |
731 | } else { | |
732 | var->pixclock = 0; | |
733 | var->left_margin = 0; | |
734 | var->right_margin = 0; | |
735 | var->upper_margin = 0; | |
736 | var->lower_margin = 0; | |
737 | var->hsync_len = 0; | |
738 | var->vsync_len = 0; | |
739 | } | |
740 | ||
741 | /* TODO: get these from panel->config */ | |
742 | var->vmode = FB_VMODE_NONINTERLACED; | |
743 | var->sync = 0; | |
744 | ||
745 | return 0; | |
746 | } | |
747 | ||
748 | /* | |
749 | * --------------------------------------------------------------------------- | |
750 | * fbdev framework callbacks | |
751 | * --------------------------------------------------------------------------- | |
752 | */ | |
753 | static int omapfb_open(struct fb_info *fbi, int user) | |
754 | { | |
755 | return 0; | |
756 | } | |
757 | ||
758 | static int omapfb_release(struct fb_info *fbi, int user) | |
759 | { | |
b39a982d TV |
760 | return 0; |
761 | } | |
762 | ||
a4c1a148 VS |
763 | static unsigned calc_rotation_offset_dma(const struct fb_var_screeninfo *var, |
764 | const struct fb_fix_screeninfo *fix, int rotation) | |
b39a982d TV |
765 | { |
766 | unsigned offset; | |
767 | ||
768 | offset = var->yoffset * fix->line_length + | |
769 | var->xoffset * (var->bits_per_pixel >> 3); | |
770 | ||
771 | return offset; | |
772 | } | |
773 | ||
a4c1a148 VS |
774 | static unsigned calc_rotation_offset_vrfb(const struct fb_var_screeninfo *var, |
775 | const struct fb_fix_screeninfo *fix, int rotation) | |
b39a982d TV |
776 | { |
777 | unsigned offset; | |
778 | ||
779 | if (rotation == FB_ROTATE_UD) | |
780 | offset = (var->yres_virtual - var->yres) * | |
781 | fix->line_length; | |
782 | else if (rotation == FB_ROTATE_CW) | |
783 | offset = (var->yres_virtual - var->yres) * | |
784 | (var->bits_per_pixel >> 3); | |
785 | else | |
786 | offset = 0; | |
787 | ||
788 | if (rotation == FB_ROTATE_UR) | |
789 | offset += var->yoffset * fix->line_length + | |
790 | var->xoffset * (var->bits_per_pixel >> 3); | |
791 | else if (rotation == FB_ROTATE_UD) | |
792 | offset -= var->yoffset * fix->line_length + | |
793 | var->xoffset * (var->bits_per_pixel >> 3); | |
794 | else if (rotation == FB_ROTATE_CW) | |
795 | offset -= var->xoffset * fix->line_length + | |
796 | var->yoffset * (var->bits_per_pixel >> 3); | |
797 | else if (rotation == FB_ROTATE_CCW) | |
798 | offset += var->xoffset * fix->line_length + | |
799 | var->yoffset * (var->bits_per_pixel >> 3); | |
800 | ||
801 | return offset; | |
802 | } | |
803 | ||
46d3524a VS |
804 | static void omapfb_calc_addr(const struct omapfb_info *ofbi, |
805 | const struct fb_var_screeninfo *var, | |
806 | const struct fb_fix_screeninfo *fix, | |
807 | int rotation, u32 *paddr, void __iomem **vaddr) | |
808 | { | |
809 | u32 data_start_p; | |
810 | void __iomem *data_start_v; | |
811 | int offset; | |
812 | ||
813 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { | |
814 | data_start_p = omapfb_get_region_rot_paddr(ofbi, rotation); | |
815 | data_start_v = NULL; | |
816 | } else { | |
817 | data_start_p = omapfb_get_region_paddr(ofbi); | |
818 | data_start_v = omapfb_get_region_vaddr(ofbi); | |
819 | } | |
820 | ||
821 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) | |
822 | offset = calc_rotation_offset_vrfb(var, fix, rotation); | |
823 | else | |
824 | offset = calc_rotation_offset_dma(var, fix, rotation); | |
825 | ||
826 | data_start_p += offset; | |
827 | data_start_v += offset; | |
828 | ||
829 | if (offset) | |
830 | DBG("offset %d, %d = %d\n", | |
831 | var->xoffset, var->yoffset, offset); | |
832 | ||
833 | DBG("paddr %x, vaddr %p\n", data_start_p, data_start_v); | |
834 | ||
835 | *paddr = data_start_p; | |
836 | *vaddr = data_start_v; | |
837 | } | |
b39a982d TV |
838 | |
839 | /* setup overlay according to the fb */ | |
078ff546 | 840 | int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl, |
b39a982d TV |
841 | u16 posx, u16 posy, u16 outw, u16 outh) |
842 | { | |
843 | int r = 0; | |
844 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
845 | struct fb_var_screeninfo *var = &fbi->var; | |
846 | struct fb_fix_screeninfo *fix = &fbi->fix; | |
847 | enum omap_color_mode mode = 0; | |
46d3524a VS |
848 | u32 data_start_p = 0; |
849 | void __iomem *data_start_v = NULL; | |
b39a982d TV |
850 | struct omap_overlay_info info; |
851 | int xres, yres; | |
852 | int screen_width; | |
853 | int mirror; | |
854 | int rotation = var->rotate; | |
855 | int i; | |
856 | ||
1ceafc00 VS |
857 | WARN_ON(!atomic_read(&ofbi->region->lock_count)); |
858 | ||
b39a982d TV |
859 | for (i = 0; i < ofbi->num_overlays; i++) { |
860 | if (ovl != ofbi->overlays[i]) | |
861 | continue; | |
862 | ||
863 | rotation = (rotation + ofbi->rotation[i]) % 4; | |
864 | break; | |
865 | } | |
866 | ||
867 | DBG("setup_overlay %d, posx %d, posy %d, outw %d, outh %d\n", ofbi->id, | |
868 | posx, posy, outw, outh); | |
869 | ||
870 | if (rotation == FB_ROTATE_CW || rotation == FB_ROTATE_CCW) { | |
871 | xres = var->yres; | |
872 | yres = var->xres; | |
873 | } else { | |
874 | xres = var->xres; | |
875 | yres = var->yres; | |
876 | } | |
877 | ||
078ff546 | 878 | if (ofbi->region->size) |
276a1d43 VS |
879 | omapfb_calc_addr(ofbi, var, fix, rotation, |
880 | &data_start_p, &data_start_v); | |
b39a982d TV |
881 | |
882 | r = fb_mode_to_dss_mode(var, &mode); | |
883 | if (r) { | |
884 | DBG("fb_mode_to_dss_mode failed"); | |
885 | goto err; | |
886 | } | |
887 | ||
888 | switch (var->nonstd) { | |
889 | case OMAPFB_COLOR_YUV422: | |
890 | case OMAPFB_COLOR_YUY422: | |
891 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { | |
892 | screen_width = fix->line_length | |
893 | / (var->bits_per_pixel >> 2); | |
894 | break; | |
895 | } | |
896 | default: | |
897 | screen_width = fix->line_length / (var->bits_per_pixel >> 3); | |
898 | break; | |
899 | } | |
900 | ||
901 | ovl->get_overlay_info(ovl, &info); | |
902 | ||
903 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) | |
904 | mirror = 0; | |
905 | else | |
906 | mirror = ofbi->mirror; | |
907 | ||
908 | info.paddr = data_start_p; | |
909 | info.vaddr = data_start_v; | |
910 | info.screen_width = screen_width; | |
911 | info.width = xres; | |
912 | info.height = yres; | |
913 | info.color_mode = mode; | |
914 | info.rotation_type = ofbi->rotation_type; | |
915 | info.rotation = rotation; | |
916 | info.mirror = mirror; | |
917 | ||
918 | info.pos_x = posx; | |
919 | info.pos_y = posy; | |
920 | info.out_width = outw; | |
921 | info.out_height = outh; | |
922 | ||
923 | r = ovl->set_overlay_info(ovl, &info); | |
924 | if (r) { | |
925 | DBG("ovl->setup_overlay_info failed\n"); | |
926 | goto err; | |
927 | } | |
928 | ||
929 | return 0; | |
930 | ||
931 | err: | |
932 | DBG("setup_overlay failed\n"); | |
933 | return r; | |
934 | } | |
935 | ||
936 | /* apply var to the overlay */ | |
937 | int omapfb_apply_changes(struct fb_info *fbi, int init) | |
938 | { | |
939 | int r = 0; | |
940 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
941 | struct fb_var_screeninfo *var = &fbi->var; | |
942 | struct omap_overlay *ovl; | |
943 | u16 posx, posy; | |
944 | u16 outw, outh; | |
945 | int i; | |
946 | ||
947 | #ifdef DEBUG | |
948 | if (omapfb_test_pattern) | |
949 | fill_fb(fbi); | |
950 | #endif | |
951 | ||
1ceafc00 VS |
952 | WARN_ON(!atomic_read(&ofbi->region->lock_count)); |
953 | ||
b39a982d TV |
954 | for (i = 0; i < ofbi->num_overlays; i++) { |
955 | ovl = ofbi->overlays[i]; | |
956 | ||
957 | DBG("apply_changes, fb %d, ovl %d\n", ofbi->id, ovl->id); | |
958 | ||
078ff546 | 959 | if (ofbi->region->size == 0) { |
b39a982d TV |
960 | /* the fb is not available. disable the overlay */ |
961 | omapfb_overlay_enable(ovl, 0); | |
962 | if (!init && ovl->manager) | |
963 | ovl->manager->apply(ovl->manager); | |
964 | continue; | |
965 | } | |
966 | ||
967 | if (init || (ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) { | |
968 | int rotation = (var->rotate + ofbi->rotation[i]) % 4; | |
969 | if (rotation == FB_ROTATE_CW || | |
970 | rotation == FB_ROTATE_CCW) { | |
971 | outw = var->yres; | |
972 | outh = var->xres; | |
973 | } else { | |
974 | outw = var->xres; | |
975 | outh = var->yres; | |
976 | } | |
977 | } else { | |
978 | outw = ovl->info.out_width; | |
979 | outh = ovl->info.out_height; | |
980 | } | |
981 | ||
982 | if (init) { | |
983 | posx = 0; | |
984 | posy = 0; | |
985 | } else { | |
986 | posx = ovl->info.pos_x; | |
987 | posy = ovl->info.pos_y; | |
988 | } | |
989 | ||
990 | r = omapfb_setup_overlay(fbi, ovl, posx, posy, outw, outh); | |
991 | if (r) | |
992 | goto err; | |
993 | ||
994 | if (!init && ovl->manager) | |
995 | ovl->manager->apply(ovl->manager); | |
996 | } | |
997 | return 0; | |
998 | err: | |
999 | DBG("apply_changes failed\n"); | |
1000 | return r; | |
1001 | } | |
1002 | ||
1003 | /* checks var and eventually tweaks it to something supported, | |
1004 | * DO NOT MODIFY PAR */ | |
1005 | static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi) | |
1006 | { | |
430571d5 | 1007 | struct omapfb_info *ofbi = FB2OFB(fbi); |
b39a982d TV |
1008 | int r; |
1009 | ||
1010 | DBG("check_var(%d)\n", FB2OFB(fbi)->id); | |
1011 | ||
430571d5 VS |
1012 | omapfb_get_mem_region(ofbi->region); |
1013 | ||
b39a982d TV |
1014 | r = check_fb_var(fbi, var); |
1015 | ||
430571d5 VS |
1016 | omapfb_put_mem_region(ofbi->region); |
1017 | ||
b39a982d TV |
1018 | return r; |
1019 | } | |
1020 | ||
1021 | /* set the video mode according to info->var */ | |
1022 | static int omapfb_set_par(struct fb_info *fbi) | |
1023 | { | |
430571d5 | 1024 | struct omapfb_info *ofbi = FB2OFB(fbi); |
b39a982d TV |
1025 | int r; |
1026 | ||
1027 | DBG("set_par(%d)\n", FB2OFB(fbi)->id); | |
1028 | ||
430571d5 VS |
1029 | omapfb_get_mem_region(ofbi->region); |
1030 | ||
b39a982d TV |
1031 | set_fb_fix(fbi); |
1032 | ||
1033 | r = setup_vrfb_rotation(fbi); | |
1034 | if (r) | |
430571d5 | 1035 | goto out; |
b39a982d TV |
1036 | |
1037 | r = omapfb_apply_changes(fbi, 0); | |
1038 | ||
430571d5 VS |
1039 | out: |
1040 | omapfb_put_mem_region(ofbi->region); | |
1041 | ||
b39a982d TV |
1042 | return r; |
1043 | } | |
1044 | ||
1045 | static int omapfb_pan_display(struct fb_var_screeninfo *var, | |
1046 | struct fb_info *fbi) | |
1047 | { | |
430571d5 | 1048 | struct omapfb_info *ofbi = FB2OFB(fbi); |
b39a982d TV |
1049 | struct fb_var_screeninfo new_var; |
1050 | int r; | |
1051 | ||
1052 | DBG("pan_display(%d)\n", FB2OFB(fbi)->id); | |
1053 | ||
1054 | if (var->xoffset == fbi->var.xoffset && | |
1055 | var->yoffset == fbi->var.yoffset) | |
1056 | return 0; | |
1057 | ||
1058 | new_var = fbi->var; | |
1059 | new_var.xoffset = var->xoffset; | |
1060 | new_var.yoffset = var->yoffset; | |
1061 | ||
1062 | fbi->var = new_var; | |
1063 | ||
430571d5 VS |
1064 | omapfb_get_mem_region(ofbi->region); |
1065 | ||
b39a982d TV |
1066 | r = omapfb_apply_changes(fbi, 0); |
1067 | ||
430571d5 VS |
1068 | omapfb_put_mem_region(ofbi->region); |
1069 | ||
b39a982d TV |
1070 | return r; |
1071 | } | |
1072 | ||
1073 | static void mmap_user_open(struct vm_area_struct *vma) | |
1074 | { | |
078ff546 | 1075 | struct omapfb2_mem_region *rg = vma->vm_private_data; |
b39a982d | 1076 | |
430571d5 | 1077 | omapfb_get_mem_region(rg); |
078ff546 | 1078 | atomic_inc(&rg->map_count); |
430571d5 | 1079 | omapfb_put_mem_region(rg); |
b39a982d TV |
1080 | } |
1081 | ||
1082 | static void mmap_user_close(struct vm_area_struct *vma) | |
1083 | { | |
078ff546 | 1084 | struct omapfb2_mem_region *rg = vma->vm_private_data; |
b39a982d | 1085 | |
430571d5 | 1086 | omapfb_get_mem_region(rg); |
078ff546 | 1087 | atomic_dec(&rg->map_count); |
430571d5 | 1088 | omapfb_put_mem_region(rg); |
b39a982d TV |
1089 | } |
1090 | ||
1091 | static struct vm_operations_struct mmap_user_ops = { | |
1092 | .open = mmap_user_open, | |
1093 | .close = mmap_user_close, | |
1094 | }; | |
1095 | ||
1096 | static int omapfb_mmap(struct fb_info *fbi, struct vm_area_struct *vma) | |
1097 | { | |
1098 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
1099 | struct fb_fix_screeninfo *fix = &fbi->fix; | |
078ff546 | 1100 | struct omapfb2_mem_region *rg; |
b39a982d TV |
1101 | unsigned long off; |
1102 | unsigned long start; | |
1103 | u32 len; | |
430571d5 | 1104 | int r = -EINVAL; |
b39a982d TV |
1105 | |
1106 | if (vma->vm_end - vma->vm_start == 0) | |
1107 | return 0; | |
1108 | if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) | |
1109 | return -EINVAL; | |
1110 | off = vma->vm_pgoff << PAGE_SHIFT; | |
1111 | ||
430571d5 | 1112 | rg = omapfb_get_mem_region(ofbi->region); |
078ff546 | 1113 | |
b39a982d TV |
1114 | start = omapfb_get_region_paddr(ofbi); |
1115 | len = fix->smem_len; | |
1116 | if (off >= len) | |
430571d5 | 1117 | goto error; |
b39a982d | 1118 | if ((vma->vm_end - vma->vm_start + off) > len) |
430571d5 | 1119 | goto error; |
b39a982d TV |
1120 | |
1121 | off += start; | |
1122 | ||
1123 | DBG("user mmap region start %lx, len %d, off %lx\n", start, len, off); | |
1124 | ||
1125 | vma->vm_pgoff = off >> PAGE_SHIFT; | |
1126 | vma->vm_flags |= VM_IO | VM_RESERVED; | |
1127 | vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); | |
1128 | vma->vm_ops = &mmap_user_ops; | |
078ff546 | 1129 | vma->vm_private_data = rg; |
b39a982d | 1130 | if (io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT, |
430571d5 VS |
1131 | vma->vm_end - vma->vm_start, |
1132 | vma->vm_page_prot)) { | |
1133 | r = -EAGAIN; | |
1134 | goto error; | |
1135 | } | |
1136 | ||
b39a982d | 1137 | /* vm_ops.open won't be called for mmap itself. */ |
078ff546 | 1138 | atomic_inc(&rg->map_count); |
430571d5 VS |
1139 | |
1140 | omapfb_put_mem_region(rg); | |
1141 | ||
b39a982d | 1142 | return 0; |
430571d5 VS |
1143 | |
1144 | error: | |
1145 | omapfb_put_mem_region(ofbi->region); | |
1146 | ||
1147 | return r; | |
b39a982d TV |
1148 | } |
1149 | ||
1150 | /* Store a single color palette entry into a pseudo palette or the hardware | |
1151 | * palette if one is available. For now we support only 16bpp and thus store | |
1152 | * the entry only to the pseudo palette. | |
1153 | */ | |
1154 | static int _setcolreg(struct fb_info *fbi, u_int regno, u_int red, u_int green, | |
1155 | u_int blue, u_int transp, int update_hw_pal) | |
1156 | { | |
1157 | /*struct omapfb_info *ofbi = FB2OFB(fbi);*/ | |
1158 | /*struct omapfb2_device *fbdev = ofbi->fbdev;*/ | |
1159 | struct fb_var_screeninfo *var = &fbi->var; | |
1160 | int r = 0; | |
1161 | ||
1162 | enum omapfb_color_format mode = OMAPFB_COLOR_RGB24U; /* XXX */ | |
1163 | ||
1164 | /*switch (plane->color_mode) {*/ | |
1165 | switch (mode) { | |
1166 | case OMAPFB_COLOR_YUV422: | |
1167 | case OMAPFB_COLOR_YUV420: | |
1168 | case OMAPFB_COLOR_YUY422: | |
1169 | r = -EINVAL; | |
1170 | break; | |
1171 | case OMAPFB_COLOR_CLUT_8BPP: | |
1172 | case OMAPFB_COLOR_CLUT_4BPP: | |
1173 | case OMAPFB_COLOR_CLUT_2BPP: | |
1174 | case OMAPFB_COLOR_CLUT_1BPP: | |
1175 | /* | |
1176 | if (fbdev->ctrl->setcolreg) | |
1177 | r = fbdev->ctrl->setcolreg(regno, red, green, blue, | |
1178 | transp, update_hw_pal); | |
1179 | */ | |
1180 | /* Fallthrough */ | |
1181 | r = -EINVAL; | |
1182 | break; | |
1183 | case OMAPFB_COLOR_RGB565: | |
1184 | case OMAPFB_COLOR_RGB444: | |
1185 | case OMAPFB_COLOR_RGB24P: | |
1186 | case OMAPFB_COLOR_RGB24U: | |
1187 | if (r != 0) | |
1188 | break; | |
1189 | ||
b39a982d TV |
1190 | if (regno < 16) { |
1191 | u16 pal; | |
1192 | pal = ((red >> (16 - var->red.length)) << | |
1193 | var->red.offset) | | |
1194 | ((green >> (16 - var->green.length)) << | |
1195 | var->green.offset) | | |
1196 | (blue >> (16 - var->blue.length)); | |
1197 | ((u32 *)(fbi->pseudo_palette))[regno] = pal; | |
1198 | } | |
1199 | break; | |
1200 | default: | |
1201 | BUG(); | |
1202 | } | |
1203 | return r; | |
1204 | } | |
1205 | ||
1206 | static int omapfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, | |
1207 | u_int transp, struct fb_info *info) | |
1208 | { | |
1209 | DBG("setcolreg\n"); | |
1210 | ||
1211 | return _setcolreg(info, regno, red, green, blue, transp, 1); | |
1212 | } | |
1213 | ||
1214 | static int omapfb_setcmap(struct fb_cmap *cmap, struct fb_info *info) | |
1215 | { | |
1216 | int count, index, r; | |
1217 | u16 *red, *green, *blue, *transp; | |
1218 | u16 trans = 0xffff; | |
1219 | ||
1220 | DBG("setcmap\n"); | |
1221 | ||
1222 | red = cmap->red; | |
1223 | green = cmap->green; | |
1224 | blue = cmap->blue; | |
1225 | transp = cmap->transp; | |
1226 | index = cmap->start; | |
1227 | ||
1228 | for (count = 0; count < cmap->len; count++) { | |
1229 | if (transp) | |
1230 | trans = *transp++; | |
1231 | r = _setcolreg(info, index++, *red++, *green++, *blue++, trans, | |
1232 | count == cmap->len - 1); | |
1233 | if (r != 0) | |
1234 | return r; | |
1235 | } | |
1236 | ||
1237 | return 0; | |
1238 | } | |
1239 | ||
1240 | static int omapfb_blank(int blank, struct fb_info *fbi) | |
1241 | { | |
1242 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
1243 | struct omapfb2_device *fbdev = ofbi->fbdev; | |
1244 | struct omap_dss_device *display = fb2display(fbi); | |
b39a982d TV |
1245 | int r = 0; |
1246 | ||
93255887 JN |
1247 | if (!display) |
1248 | return -EINVAL; | |
1249 | ||
b39a982d TV |
1250 | omapfb_lock(fbdev); |
1251 | ||
1252 | switch (blank) { | |
1253 | case FB_BLANK_UNBLANK: | |
1254 | if (display->state != OMAP_DSS_DISPLAY_SUSPENDED) | |
1255 | goto exit; | |
1256 | ||
37ac60e4 TV |
1257 | if (display->driver->resume) |
1258 | r = display->driver->resume(display); | |
b39a982d | 1259 | |
b39a982d TV |
1260 | break; |
1261 | ||
1262 | case FB_BLANK_NORMAL: | |
1263 | /* FB_BLANK_NORMAL could be implemented. | |
1264 | * Needs DSS additions. */ | |
1265 | case FB_BLANK_VSYNC_SUSPEND: | |
1266 | case FB_BLANK_HSYNC_SUSPEND: | |
1267 | case FB_BLANK_POWERDOWN: | |
1268 | if (display->state != OMAP_DSS_DISPLAY_ACTIVE) | |
1269 | goto exit; | |
1270 | ||
37ac60e4 TV |
1271 | if (display->driver->suspend) |
1272 | r = display->driver->suspend(display); | |
b39a982d TV |
1273 | |
1274 | break; | |
1275 | ||
1276 | default: | |
1277 | r = -EINVAL; | |
1278 | } | |
1279 | ||
1280 | exit: | |
1281 | omapfb_unlock(fbdev); | |
1282 | ||
b39a982d TV |
1283 | return r; |
1284 | } | |
1285 | ||
1286 | #if 0 | |
1287 | /* XXX fb_read and fb_write are needed for VRFB */ | |
1288 | ssize_t omapfb_write(struct fb_info *info, const char __user *buf, | |
1289 | size_t count, loff_t *ppos) | |
1290 | { | |
1291 | DBG("omapfb_write %d, %lu\n", count, (unsigned long)*ppos); | |
1292 | /* XXX needed for VRFB */ | |
1293 | return count; | |
1294 | } | |
1295 | #endif | |
1296 | ||
1297 | static struct fb_ops omapfb_ops = { | |
1298 | .owner = THIS_MODULE, | |
1299 | .fb_open = omapfb_open, | |
1300 | .fb_release = omapfb_release, | |
1301 | .fb_fillrect = cfb_fillrect, | |
1302 | .fb_copyarea = cfb_copyarea, | |
1303 | .fb_imageblit = cfb_imageblit, | |
1304 | .fb_blank = omapfb_blank, | |
1305 | .fb_ioctl = omapfb_ioctl, | |
1306 | .fb_check_var = omapfb_check_var, | |
1307 | .fb_set_par = omapfb_set_par, | |
1308 | .fb_pan_display = omapfb_pan_display, | |
1309 | .fb_mmap = omapfb_mmap, | |
1310 | .fb_setcolreg = omapfb_setcolreg, | |
1311 | .fb_setcmap = omapfb_setcmap, | |
1312 | /*.fb_write = omapfb_write,*/ | |
1313 | }; | |
1314 | ||
1315 | static void omapfb_free_fbmem(struct fb_info *fbi) | |
1316 | { | |
1317 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
1318 | struct omapfb2_device *fbdev = ofbi->fbdev; | |
1319 | struct omapfb2_mem_region *rg; | |
1320 | ||
078ff546 VS |
1321 | rg = ofbi->region; |
1322 | ||
1323 | WARN_ON(atomic_read(&rg->map_count)); | |
b39a982d TV |
1324 | |
1325 | if (rg->paddr) | |
1326 | if (omap_vram_free(rg->paddr, rg->size)) | |
1327 | dev_err(fbdev->dev, "VRAM FREE failed\n"); | |
1328 | ||
1329 | if (rg->vaddr) | |
1330 | iounmap(rg->vaddr); | |
1331 | ||
1332 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { | |
1333 | /* unmap the 0 angle rotation */ | |
1334 | if (rg->vrfb.vaddr[0]) { | |
1335 | iounmap(rg->vrfb.vaddr[0]); | |
1336 | omap_vrfb_release_ctx(&rg->vrfb); | |
f3a82d11 | 1337 | rg->vrfb.vaddr[0] = NULL; |
b39a982d TV |
1338 | } |
1339 | } | |
1340 | ||
1341 | rg->vaddr = NULL; | |
1342 | rg->paddr = 0; | |
1343 | rg->alloc = 0; | |
1344 | rg->size = 0; | |
1345 | } | |
1346 | ||
1347 | static void clear_fb_info(struct fb_info *fbi) | |
1348 | { | |
1349 | memset(&fbi->var, 0, sizeof(fbi->var)); | |
1350 | memset(&fbi->fix, 0, sizeof(fbi->fix)); | |
1351 | strlcpy(fbi->fix.id, MODULE_NAME, sizeof(fbi->fix.id)); | |
1352 | } | |
1353 | ||
1354 | static int omapfb_free_all_fbmem(struct omapfb2_device *fbdev) | |
1355 | { | |
1356 | int i; | |
1357 | ||
1358 | DBG("free all fbmem\n"); | |
1359 | ||
1360 | for (i = 0; i < fbdev->num_fbs; i++) { | |
1361 | struct fb_info *fbi = fbdev->fbs[i]; | |
1362 | omapfb_free_fbmem(fbi); | |
1363 | clear_fb_info(fbi); | |
1364 | } | |
1365 | ||
1366 | return 0; | |
1367 | } | |
1368 | ||
1369 | static int omapfb_alloc_fbmem(struct fb_info *fbi, unsigned long size, | |
1370 | unsigned long paddr) | |
1371 | { | |
1372 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
1373 | struct omapfb2_device *fbdev = ofbi->fbdev; | |
1374 | struct omapfb2_mem_region *rg; | |
1375 | void __iomem *vaddr; | |
1376 | int r; | |
1377 | ||
078ff546 VS |
1378 | rg = ofbi->region; |
1379 | ||
1380 | rg->paddr = 0; | |
1381 | rg->vaddr = NULL; | |
1382 | memset(&rg->vrfb, 0, sizeof rg->vrfb); | |
1383 | rg->size = 0; | |
1384 | rg->type = 0; | |
1385 | rg->alloc = false; | |
1386 | rg->map = false; | |
b39a982d TV |
1387 | |
1388 | size = PAGE_ALIGN(size); | |
1389 | ||
1390 | if (!paddr) { | |
1391 | DBG("allocating %lu bytes for fb %d\n", size, ofbi->id); | |
1392 | r = omap_vram_alloc(OMAP_VRAM_MEMTYPE_SDRAM, size, &paddr); | |
1393 | } else { | |
1394 | DBG("reserving %lu bytes at %lx for fb %d\n", size, paddr, | |
1395 | ofbi->id); | |
1396 | r = omap_vram_reserve(paddr, size); | |
1397 | } | |
1398 | ||
1399 | if (r) { | |
1400 | dev_err(fbdev->dev, "failed to allocate framebuffer\n"); | |
1401 | return -ENOMEM; | |
1402 | } | |
1403 | ||
1404 | if (ofbi->rotation_type != OMAP_DSS_ROT_VRFB) { | |
1405 | vaddr = ioremap_wc(paddr, size); | |
1406 | ||
1407 | if (!vaddr) { | |
1408 | dev_err(fbdev->dev, "failed to ioremap framebuffer\n"); | |
1409 | omap_vram_free(paddr, size); | |
1410 | return -ENOMEM; | |
1411 | } | |
1412 | ||
1413 | DBG("allocated VRAM paddr %lx, vaddr %p\n", paddr, vaddr); | |
1414 | } else { | |
1415 | r = omap_vrfb_request_ctx(&rg->vrfb); | |
1416 | if (r) { | |
1417 | dev_err(fbdev->dev, "vrfb create ctx failed\n"); | |
1418 | return r; | |
1419 | } | |
1420 | ||
1421 | vaddr = NULL; | |
1422 | } | |
1423 | ||
1424 | rg->paddr = paddr; | |
1425 | rg->vaddr = vaddr; | |
1426 | rg->size = size; | |
1427 | rg->alloc = 1; | |
1428 | ||
1429 | return 0; | |
1430 | } | |
1431 | ||
1432 | /* allocate fbmem using display resolution as reference */ | |
1433 | static int omapfb_alloc_fbmem_display(struct fb_info *fbi, unsigned long size, | |
1434 | unsigned long paddr) | |
1435 | { | |
1436 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
a2699504 | 1437 | struct omapfb2_device *fbdev = ofbi->fbdev; |
b39a982d TV |
1438 | struct omap_dss_device *display; |
1439 | int bytespp; | |
1440 | ||
1441 | display = fb2display(fbi); | |
1442 | ||
1443 | if (!display) | |
1444 | return 0; | |
1445 | ||
a2699504 | 1446 | switch (omapfb_get_recommended_bpp(fbdev, display)) { |
b39a982d TV |
1447 | case 16: |
1448 | bytespp = 2; | |
1449 | break; | |
1450 | case 24: | |
1451 | bytespp = 4; | |
1452 | break; | |
1453 | default: | |
1454 | bytespp = 4; | |
1455 | break; | |
1456 | } | |
1457 | ||
1458 | if (!size) { | |
1459 | u16 w, h; | |
1460 | ||
96adcece | 1461 | display->driver->get_resolution(display, &w, &h); |
b39a982d TV |
1462 | |
1463 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { | |
1464 | size = max(omap_vrfb_min_phys_size(w, h, bytespp), | |
1465 | omap_vrfb_min_phys_size(h, w, bytespp)); | |
1466 | ||
1467 | DBG("adjusting fb mem size for VRFB, %u -> %lu\n", | |
1468 | w * h * bytespp, size); | |
1469 | } else { | |
1470 | size = w * h * bytespp; | |
1471 | } | |
1472 | } | |
1473 | ||
1474 | if (!size) | |
1475 | return 0; | |
1476 | ||
1477 | return omapfb_alloc_fbmem(fbi, size, paddr); | |
1478 | } | |
1479 | ||
1480 | static enum omap_color_mode fb_format_to_dss_mode(enum omapfb_color_format fmt) | |
1481 | { | |
1482 | enum omap_color_mode mode; | |
1483 | ||
1484 | switch (fmt) { | |
1485 | case OMAPFB_COLOR_RGB565: | |
1486 | mode = OMAP_DSS_COLOR_RGB16; | |
1487 | break; | |
1488 | case OMAPFB_COLOR_YUV422: | |
1489 | mode = OMAP_DSS_COLOR_YUV2; | |
1490 | break; | |
1491 | case OMAPFB_COLOR_CLUT_8BPP: | |
1492 | mode = OMAP_DSS_COLOR_CLUT8; | |
1493 | break; | |
1494 | case OMAPFB_COLOR_CLUT_4BPP: | |
1495 | mode = OMAP_DSS_COLOR_CLUT4; | |
1496 | break; | |
1497 | case OMAPFB_COLOR_CLUT_2BPP: | |
1498 | mode = OMAP_DSS_COLOR_CLUT2; | |
1499 | break; | |
1500 | case OMAPFB_COLOR_CLUT_1BPP: | |
1501 | mode = OMAP_DSS_COLOR_CLUT1; | |
1502 | break; | |
1503 | case OMAPFB_COLOR_RGB444: | |
1504 | mode = OMAP_DSS_COLOR_RGB12U; | |
1505 | break; | |
1506 | case OMAPFB_COLOR_YUY422: | |
1507 | mode = OMAP_DSS_COLOR_UYVY; | |
1508 | break; | |
1509 | case OMAPFB_COLOR_ARGB16: | |
1510 | mode = OMAP_DSS_COLOR_ARGB16; | |
1511 | break; | |
1512 | case OMAPFB_COLOR_RGB24U: | |
1513 | mode = OMAP_DSS_COLOR_RGB24U; | |
1514 | break; | |
1515 | case OMAPFB_COLOR_RGB24P: | |
1516 | mode = OMAP_DSS_COLOR_RGB24P; | |
1517 | break; | |
1518 | case OMAPFB_COLOR_ARGB32: | |
1519 | mode = OMAP_DSS_COLOR_ARGB32; | |
1520 | break; | |
1521 | case OMAPFB_COLOR_RGBA32: | |
1522 | mode = OMAP_DSS_COLOR_RGBA32; | |
1523 | break; | |
1524 | case OMAPFB_COLOR_RGBX32: | |
1525 | mode = OMAP_DSS_COLOR_RGBX32; | |
1526 | break; | |
1527 | default: | |
1528 | mode = -EINVAL; | |
1529 | } | |
1530 | ||
1531 | return mode; | |
1532 | } | |
1533 | ||
1534 | static int omapfb_parse_vram_param(const char *param, int max_entries, | |
1535 | unsigned long *sizes, unsigned long *paddrs) | |
1536 | { | |
1537 | int fbnum; | |
1538 | unsigned long size; | |
1539 | unsigned long paddr = 0; | |
1540 | char *p, *start; | |
1541 | ||
1542 | start = (char *)param; | |
1543 | ||
1544 | while (1) { | |
1545 | p = start; | |
1546 | ||
1547 | fbnum = simple_strtoul(p, &p, 10); | |
1548 | ||
1549 | if (p == param) | |
1550 | return -EINVAL; | |
1551 | ||
1552 | if (*p != ':') | |
1553 | return -EINVAL; | |
1554 | ||
1555 | if (fbnum >= max_entries) | |
1556 | return -EINVAL; | |
1557 | ||
1558 | size = memparse(p + 1, &p); | |
1559 | ||
1560 | if (!size) | |
1561 | return -EINVAL; | |
1562 | ||
1563 | paddr = 0; | |
1564 | ||
1565 | if (*p == '@') { | |
1566 | paddr = simple_strtoul(p + 1, &p, 16); | |
1567 | ||
1568 | if (!paddr) | |
1569 | return -EINVAL; | |
1570 | ||
1571 | } | |
1572 | ||
1573 | paddrs[fbnum] = paddr; | |
1574 | sizes[fbnum] = size; | |
1575 | ||
1576 | if (*p == 0) | |
1577 | break; | |
1578 | ||
1579 | if (*p != ',') | |
1580 | return -EINVAL; | |
1581 | ||
1582 | ++p; | |
1583 | ||
1584 | start = p; | |
1585 | } | |
1586 | ||
1587 | return 0; | |
1588 | } | |
1589 | ||
1590 | static int omapfb_allocate_all_fbs(struct omapfb2_device *fbdev) | |
1591 | { | |
1592 | int i, r; | |
1593 | unsigned long vram_sizes[10]; | |
1594 | unsigned long vram_paddrs[10]; | |
1595 | ||
1596 | memset(&vram_sizes, 0, sizeof(vram_sizes)); | |
1597 | memset(&vram_paddrs, 0, sizeof(vram_paddrs)); | |
1598 | ||
1599 | if (def_vram && omapfb_parse_vram_param(def_vram, 10, | |
1600 | vram_sizes, vram_paddrs)) { | |
1601 | dev_err(fbdev->dev, "failed to parse vram parameter\n"); | |
1602 | ||
1603 | memset(&vram_sizes, 0, sizeof(vram_sizes)); | |
1604 | memset(&vram_paddrs, 0, sizeof(vram_paddrs)); | |
1605 | } | |
1606 | ||
1607 | if (fbdev->dev->platform_data) { | |
1608 | struct omapfb_platform_data *opd; | |
1609 | opd = fbdev->dev->platform_data; | |
1610 | for (i = 0; i < opd->mem_desc.region_cnt; ++i) { | |
1611 | if (!vram_sizes[i]) { | |
1612 | unsigned long size; | |
1613 | unsigned long paddr; | |
1614 | ||
1615 | size = opd->mem_desc.region[i].size; | |
1616 | paddr = opd->mem_desc.region[i].paddr; | |
1617 | ||
1618 | vram_sizes[i] = size; | |
1619 | vram_paddrs[i] = paddr; | |
1620 | } | |
1621 | } | |
1622 | } | |
1623 | ||
1624 | for (i = 0; i < fbdev->num_fbs; i++) { | |
1625 | /* allocate memory automatically only for fb0, or if | |
1626 | * excplicitly defined with vram or plat data option */ | |
1627 | if (i == 0 || vram_sizes[i] != 0) { | |
1628 | r = omapfb_alloc_fbmem_display(fbdev->fbs[i], | |
1629 | vram_sizes[i], vram_paddrs[i]); | |
1630 | ||
1631 | if (r) | |
1632 | return r; | |
1633 | } | |
1634 | } | |
1635 | ||
1636 | for (i = 0; i < fbdev->num_fbs; i++) { | |
1637 | struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]); | |
1638 | struct omapfb2_mem_region *rg; | |
078ff546 | 1639 | rg = ofbi->region; |
b39a982d TV |
1640 | |
1641 | DBG("region%d phys %08x virt %p size=%lu\n", | |
1642 | i, | |
1643 | rg->paddr, | |
1644 | rg->vaddr, | |
1645 | rg->size); | |
1646 | } | |
1647 | ||
1648 | return 0; | |
1649 | } | |
1650 | ||
1651 | int omapfb_realloc_fbmem(struct fb_info *fbi, unsigned long size, int type) | |
1652 | { | |
1653 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
1654 | struct omapfb2_device *fbdev = ofbi->fbdev; | |
1655 | struct omap_dss_device *display = fb2display(fbi); | |
078ff546 | 1656 | struct omapfb2_mem_region *rg = ofbi->region; |
b39a982d TV |
1657 | unsigned long old_size = rg->size; |
1658 | unsigned long old_paddr = rg->paddr; | |
1659 | int old_type = rg->type; | |
1660 | int r; | |
1661 | ||
1662 | if (type > OMAPFB_MEMTYPE_MAX) | |
1663 | return -EINVAL; | |
1664 | ||
1665 | size = PAGE_ALIGN(size); | |
1666 | ||
1667 | if (old_size == size && old_type == type) | |
1668 | return 0; | |
1669 | ||
18946f62 TV |
1670 | if (display && display->driver->sync) |
1671 | display->driver->sync(display); | |
b39a982d TV |
1672 | |
1673 | omapfb_free_fbmem(fbi); | |
1674 | ||
1675 | if (size == 0) { | |
1676 | clear_fb_info(fbi); | |
1677 | return 0; | |
1678 | } | |
1679 | ||
1680 | r = omapfb_alloc_fbmem(fbi, size, 0); | |
1681 | ||
1682 | if (r) { | |
1683 | if (old_size) | |
1684 | omapfb_alloc_fbmem(fbi, old_size, old_paddr); | |
1685 | ||
1686 | if (rg->size == 0) | |
1687 | clear_fb_info(fbi); | |
1688 | ||
1689 | return r; | |
1690 | } | |
1691 | ||
1692 | if (old_size == size) | |
1693 | return 0; | |
1694 | ||
1695 | if (old_size == 0) { | |
1696 | DBG("initializing fb %d\n", ofbi->id); | |
1697 | r = omapfb_fb_init(fbdev, fbi); | |
1698 | if (r) { | |
1699 | DBG("omapfb_fb_init failed\n"); | |
1700 | goto err; | |
1701 | } | |
1702 | r = omapfb_apply_changes(fbi, 1); | |
1703 | if (r) { | |
1704 | DBG("omapfb_apply_changes failed\n"); | |
1705 | goto err; | |
1706 | } | |
1707 | } else { | |
1708 | struct fb_var_screeninfo new_var; | |
1709 | memcpy(&new_var, &fbi->var, sizeof(new_var)); | |
1710 | r = check_fb_var(fbi, &new_var); | |
1711 | if (r) | |
1712 | goto err; | |
1713 | memcpy(&fbi->var, &new_var, sizeof(fbi->var)); | |
1714 | set_fb_fix(fbi); | |
1715 | r = setup_vrfb_rotation(fbi); | |
1716 | if (r) | |
1717 | goto err; | |
1718 | } | |
1719 | ||
1720 | return 0; | |
1721 | err: | |
1722 | omapfb_free_fbmem(fbi); | |
1723 | clear_fb_info(fbi); | |
1724 | return r; | |
1725 | } | |
1726 | ||
1727 | /* initialize fb_info, var, fix to something sane based on the display */ | |
1728 | static int omapfb_fb_init(struct omapfb2_device *fbdev, struct fb_info *fbi) | |
1729 | { | |
1730 | struct fb_var_screeninfo *var = &fbi->var; | |
1731 | struct omap_dss_device *display = fb2display(fbi); | |
1732 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
1733 | int r = 0; | |
1734 | ||
1735 | fbi->fbops = &omapfb_ops; | |
1736 | fbi->flags = FBINFO_FLAG_DEFAULT; | |
1737 | fbi->pseudo_palette = fbdev->pseudo_palette; | |
1738 | ||
078ff546 | 1739 | if (ofbi->region->size == 0) { |
b39a982d TV |
1740 | clear_fb_info(fbi); |
1741 | return 0; | |
1742 | } | |
1743 | ||
1744 | var->nonstd = 0; | |
1745 | var->bits_per_pixel = 0; | |
1746 | ||
1747 | var->rotate = def_rotate; | |
1748 | ||
1749 | /* | |
1750 | * Check if there is a default color format set in the board file, | |
1751 | * and use this format instead the default deducted from the | |
1752 | * display bpp. | |
1753 | */ | |
1754 | if (fbdev->dev->platform_data) { | |
1755 | struct omapfb_platform_data *opd; | |
1756 | int id = ofbi->id; | |
1757 | ||
1758 | opd = fbdev->dev->platform_data; | |
1759 | if (opd->mem_desc.region[id].format_used) { | |
1760 | enum omap_color_mode mode; | |
1761 | enum omapfb_color_format format; | |
1762 | ||
1763 | format = opd->mem_desc.region[id].format; | |
1764 | mode = fb_format_to_dss_mode(format); | |
1765 | if (mode < 0) { | |
1766 | r = mode; | |
1767 | goto err; | |
1768 | } | |
1769 | r = dss_mode_to_fb_mode(mode, var); | |
1770 | if (r < 0) | |
1771 | goto err; | |
1772 | } | |
1773 | } | |
1774 | ||
1775 | if (display) { | |
1776 | u16 w, h; | |
1777 | int rotation = (var->rotate + ofbi->rotation[0]) % 4; | |
1778 | ||
96adcece | 1779 | display->driver->get_resolution(display, &w, &h); |
b39a982d TV |
1780 | |
1781 | if (rotation == FB_ROTATE_CW || | |
1782 | rotation == FB_ROTATE_CCW) { | |
1783 | var->xres = h; | |
1784 | var->yres = w; | |
1785 | } else { | |
1786 | var->xres = w; | |
1787 | var->yres = h; | |
1788 | } | |
1789 | ||
1790 | var->xres_virtual = var->xres; | |
1791 | var->yres_virtual = var->yres; | |
1792 | ||
1793 | if (!var->bits_per_pixel) { | |
a2699504 | 1794 | switch (omapfb_get_recommended_bpp(fbdev, display)) { |
b39a982d TV |
1795 | case 16: |
1796 | var->bits_per_pixel = 16; | |
1797 | break; | |
1798 | case 24: | |
1799 | var->bits_per_pixel = 32; | |
1800 | break; | |
1801 | default: | |
1802 | dev_err(fbdev->dev, "illegal display " | |
1803 | "bpp\n"); | |
1804 | return -EINVAL; | |
1805 | } | |
1806 | } | |
1807 | } else { | |
1808 | /* if there's no display, let's just guess some basic values */ | |
1809 | var->xres = 320; | |
1810 | var->yres = 240; | |
1811 | var->xres_virtual = var->xres; | |
1812 | var->yres_virtual = var->yres; | |
1813 | if (!var->bits_per_pixel) | |
1814 | var->bits_per_pixel = 16; | |
1815 | } | |
1816 | ||
1817 | r = check_fb_var(fbi, var); | |
1818 | if (r) | |
1819 | goto err; | |
1820 | ||
1821 | set_fb_fix(fbi); | |
1822 | r = setup_vrfb_rotation(fbi); | |
1823 | if (r) | |
1824 | goto err; | |
1825 | ||
1826 | r = fb_alloc_cmap(&fbi->cmap, 256, 0); | |
1827 | if (r) | |
1828 | dev_err(fbdev->dev, "unable to allocate color map memory\n"); | |
1829 | ||
1830 | err: | |
1831 | return r; | |
1832 | } | |
1833 | ||
1834 | static void fbinfo_cleanup(struct omapfb2_device *fbdev, struct fb_info *fbi) | |
1835 | { | |
1836 | fb_dealloc_cmap(&fbi->cmap); | |
1837 | } | |
1838 | ||
1839 | ||
1840 | static void omapfb_free_resources(struct omapfb2_device *fbdev) | |
1841 | { | |
1842 | int i; | |
1843 | ||
1844 | DBG("free_resources\n"); | |
1845 | ||
1846 | if (fbdev == NULL) | |
1847 | return; | |
1848 | ||
1849 | for (i = 0; i < fbdev->num_fbs; i++) | |
1850 | unregister_framebuffer(fbdev->fbs[i]); | |
1851 | ||
1852 | /* free the reserved fbmem */ | |
1853 | omapfb_free_all_fbmem(fbdev); | |
1854 | ||
1855 | for (i = 0; i < fbdev->num_fbs; i++) { | |
1856 | fbinfo_cleanup(fbdev, fbdev->fbs[i]); | |
1857 | framebuffer_release(fbdev->fbs[i]); | |
1858 | } | |
1859 | ||
1860 | for (i = 0; i < fbdev->num_displays; i++) { | |
1861 | if (fbdev->displays[i]->state != OMAP_DSS_DISPLAY_DISABLED) | |
37ac60e4 | 1862 | fbdev->displays[i]->driver->disable(fbdev->displays[i]); |
b39a982d TV |
1863 | |
1864 | omap_dss_put_device(fbdev->displays[i]); | |
1865 | } | |
1866 | ||
1867 | dev_set_drvdata(fbdev->dev, NULL); | |
1868 | kfree(fbdev); | |
1869 | } | |
1870 | ||
1871 | static int omapfb_create_framebuffers(struct omapfb2_device *fbdev) | |
1872 | { | |
1873 | int r, i; | |
1874 | ||
1875 | fbdev->num_fbs = 0; | |
1876 | ||
1877 | DBG("create %d framebuffers\n", CONFIG_FB_OMAP2_NUM_FBS); | |
1878 | ||
1879 | /* allocate fb_infos */ | |
1880 | for (i = 0; i < CONFIG_FB_OMAP2_NUM_FBS; i++) { | |
1881 | struct fb_info *fbi; | |
1882 | struct omapfb_info *ofbi; | |
1883 | ||
1884 | fbi = framebuffer_alloc(sizeof(struct omapfb_info), | |
1885 | fbdev->dev); | |
1886 | ||
1887 | if (fbi == NULL) { | |
1888 | dev_err(fbdev->dev, | |
1889 | "unable to allocate memory for plane info\n"); | |
1890 | return -ENOMEM; | |
1891 | } | |
1892 | ||
1893 | clear_fb_info(fbi); | |
1894 | ||
1895 | fbdev->fbs[i] = fbi; | |
1896 | ||
1897 | ofbi = FB2OFB(fbi); | |
1898 | ofbi->fbdev = fbdev; | |
1899 | ofbi->id = i; | |
1900 | ||
078ff546 VS |
1901 | ofbi->region = &fbdev->regions[i]; |
1902 | ofbi->region->id = i; | |
2f642a17 | 1903 | init_rwsem(&ofbi->region->lock); |
078ff546 | 1904 | |
b39a982d TV |
1905 | /* assign these early, so that fb alloc can use them */ |
1906 | ofbi->rotation_type = def_vrfb ? OMAP_DSS_ROT_VRFB : | |
1907 | OMAP_DSS_ROT_DMA; | |
1908 | ofbi->mirror = def_mirror; | |
1909 | ||
1910 | fbdev->num_fbs++; | |
1911 | } | |
1912 | ||
1913 | DBG("fb_infos allocated\n"); | |
1914 | ||
1915 | /* assign overlays for the fbs */ | |
1916 | for (i = 0; i < min(fbdev->num_fbs, fbdev->num_overlays); i++) { | |
1917 | struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]); | |
1918 | ||
1919 | ofbi->overlays[0] = fbdev->overlays[i]; | |
1920 | ofbi->num_overlays = 1; | |
1921 | } | |
1922 | ||
1923 | /* allocate fb memories */ | |
1924 | r = omapfb_allocate_all_fbs(fbdev); | |
1925 | if (r) { | |
1926 | dev_err(fbdev->dev, "failed to allocate fbmem\n"); | |
1927 | return r; | |
1928 | } | |
1929 | ||
1930 | DBG("fbmems allocated\n"); | |
1931 | ||
1932 | /* setup fb_infos */ | |
1933 | for (i = 0; i < fbdev->num_fbs; i++) { | |
430571d5 VS |
1934 | struct fb_info *fbi = fbdev->fbs[i]; |
1935 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
1936 | ||
1937 | omapfb_get_mem_region(ofbi->region); | |
1938 | r = omapfb_fb_init(fbdev, fbi); | |
1939 | omapfb_put_mem_region(ofbi->region); | |
1940 | ||
b39a982d TV |
1941 | if (r) { |
1942 | dev_err(fbdev->dev, "failed to setup fb_info\n"); | |
1943 | return r; | |
1944 | } | |
1945 | } | |
1946 | ||
1947 | DBG("fb_infos initialized\n"); | |
1948 | ||
1949 | for (i = 0; i < fbdev->num_fbs; i++) { | |
1950 | r = register_framebuffer(fbdev->fbs[i]); | |
1951 | if (r != 0) { | |
1952 | dev_err(fbdev->dev, | |
1953 | "registering framebuffer %d failed\n", i); | |
1954 | return r; | |
1955 | } | |
1956 | } | |
1957 | ||
1958 | DBG("framebuffers registered\n"); | |
1959 | ||
1960 | for (i = 0; i < fbdev->num_fbs; i++) { | |
430571d5 VS |
1961 | struct fb_info *fbi = fbdev->fbs[i]; |
1962 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
1963 | ||
1964 | omapfb_get_mem_region(ofbi->region); | |
1965 | r = omapfb_apply_changes(fbi, 1); | |
1966 | omapfb_put_mem_region(ofbi->region); | |
1967 | ||
b39a982d TV |
1968 | if (r) { |
1969 | dev_err(fbdev->dev, "failed to change mode\n"); | |
1970 | return r; | |
1971 | } | |
1972 | } | |
1973 | ||
b39a982d TV |
1974 | /* Enable fb0 */ |
1975 | if (fbdev->num_fbs > 0) { | |
1976 | struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[0]); | |
1977 | ||
1978 | if (ofbi->num_overlays > 0) { | |
1979 | struct omap_overlay *ovl = ofbi->overlays[0]; | |
1980 | ||
1981 | r = omapfb_overlay_enable(ovl, 1); | |
1982 | ||
1983 | if (r) { | |
1984 | dev_err(fbdev->dev, | |
1985 | "failed to enable overlay\n"); | |
1986 | return r; | |
1987 | } | |
1988 | } | |
1989 | } | |
1990 | ||
1991 | DBG("create_framebuffers done\n"); | |
1992 | ||
1993 | return 0; | |
1994 | } | |
1995 | ||
1996 | static int omapfb_mode_to_timings(const char *mode_str, | |
1997 | struct omap_video_timings *timings, u8 *bpp) | |
1998 | { | |
897044e9 TV |
1999 | struct fb_info *fbi; |
2000 | struct fb_var_screeninfo *var; | |
2001 | struct fb_ops *fbops; | |
b39a982d TV |
2002 | int r; |
2003 | ||
2004 | #ifdef CONFIG_OMAP2_DSS_VENC | |
2005 | if (strcmp(mode_str, "pal") == 0) { | |
2006 | *timings = omap_dss_pal_timings; | |
e8c66dcf | 2007 | *bpp = 24; |
b39a982d TV |
2008 | return 0; |
2009 | } else if (strcmp(mode_str, "ntsc") == 0) { | |
2010 | *timings = omap_dss_ntsc_timings; | |
e8c66dcf | 2011 | *bpp = 24; |
b39a982d TV |
2012 | return 0; |
2013 | } | |
2014 | #endif | |
2015 | ||
2016 | /* this is quite a hack, but I wanted to use the modedb and for | |
2017 | * that we need fb_info and var, so we create dummy ones */ | |
2018 | ||
897044e9 TV |
2019 | *bpp = 0; |
2020 | fbi = NULL; | |
2021 | var = NULL; | |
2022 | fbops = NULL; | |
b39a982d | 2023 | |
897044e9 TV |
2024 | fbi = kzalloc(sizeof(*fbi), GFP_KERNEL); |
2025 | if (fbi == NULL) { | |
2026 | r = -ENOMEM; | |
2027 | goto err; | |
2028 | } | |
2029 | ||
2030 | var = kzalloc(sizeof(*var), GFP_KERNEL); | |
2031 | if (var == NULL) { | |
2032 | r = -ENOMEM; | |
2033 | goto err; | |
2034 | } | |
2035 | ||
2036 | fbops = kzalloc(sizeof(*fbops), GFP_KERNEL); | |
2037 | if (fbops == NULL) { | |
2038 | r = -ENOMEM; | |
2039 | goto err; | |
2040 | } | |
2041 | ||
2042 | fbi->fbops = fbops; | |
2043 | ||
2044 | r = fb_find_mode(var, fbi, mode_str, NULL, 0, NULL, 24); | |
2045 | if (r == 0) { | |
2046 | r = -EINVAL; | |
2047 | goto err; | |
b39a982d | 2048 | } |
897044e9 TV |
2049 | |
2050 | timings->pixel_clock = PICOS2KHZ(var->pixclock); | |
2051 | timings->hbp = var->left_margin; | |
2052 | timings->hfp = var->right_margin; | |
2053 | timings->vbp = var->upper_margin; | |
2054 | timings->vfp = var->lower_margin; | |
2055 | timings->hsw = var->hsync_len; | |
2056 | timings->vsw = var->vsync_len; | |
2057 | timings->x_res = var->xres; | |
2058 | timings->y_res = var->yres; | |
2059 | ||
2060 | switch (var->bits_per_pixel) { | |
2061 | case 16: | |
2062 | *bpp = 16; | |
2063 | break; | |
2064 | case 24: | |
2065 | case 32: | |
2066 | default: | |
2067 | *bpp = 24; | |
2068 | break; | |
2069 | } | |
2070 | ||
2071 | r = 0; | |
2072 | ||
2073 | err: | |
2074 | kfree(fbi); | |
2075 | kfree(var); | |
2076 | kfree(fbops); | |
2077 | ||
2078 | return r; | |
b39a982d TV |
2079 | } |
2080 | ||
a2699504 TV |
2081 | static int omapfb_set_def_mode(struct omapfb2_device *fbdev, |
2082 | struct omap_dss_device *display, char *mode_str) | |
b39a982d TV |
2083 | { |
2084 | int r; | |
2085 | u8 bpp; | |
371e2081 | 2086 | struct omap_video_timings timings, temp_timings; |
b39a982d TV |
2087 | |
2088 | r = omapfb_mode_to_timings(mode_str, &timings, &bpp); | |
2089 | if (r) | |
2090 | return r; | |
2091 | ||
a2699504 TV |
2092 | fbdev->bpp_overrides[fbdev->num_bpp_overrides].dssdev = display; |
2093 | fbdev->bpp_overrides[fbdev->num_bpp_overrides].bpp = bpp; | |
2094 | ++fbdev->num_bpp_overrides; | |
b39a982d | 2095 | |
371e2081 JM |
2096 | if (display->driver->check_timings) { |
2097 | r = display->driver->check_timings(display, &timings); | |
2098 | if (r) | |
2099 | return r; | |
2100 | } else { | |
2101 | /* If check_timings is not present compare xres and yres */ | |
2102 | if (display->driver->get_timings) { | |
2103 | display->driver->get_timings(display, &temp_timings); | |
b39a982d | 2104 | |
371e2081 JM |
2105 | if (temp_timings.x_res != timings.x_res || |
2106 | temp_timings.y_res != timings.y_res) | |
2107 | return -EINVAL; | |
2108 | } | |
2109 | } | |
b39a982d | 2110 | |
371e2081 JM |
2111 | if (display->driver->set_timings) |
2112 | display->driver->set_timings(display, &timings); | |
b39a982d TV |
2113 | |
2114 | return 0; | |
2115 | } | |
2116 | ||
a2699504 TV |
2117 | static int omapfb_get_recommended_bpp(struct omapfb2_device *fbdev, |
2118 | struct omap_dss_device *dssdev) | |
2119 | { | |
2120 | int i; | |
2121 | ||
2122 | BUG_ON(dssdev->driver->get_recommended_bpp == NULL); | |
2123 | ||
2124 | for (i = 0; i < fbdev->num_bpp_overrides; ++i) { | |
2125 | if (dssdev == fbdev->bpp_overrides[i].dssdev) | |
2126 | return fbdev->bpp_overrides[i].bpp; | |
2127 | } | |
2128 | ||
2129 | return dssdev->driver->get_recommended_bpp(dssdev); | |
2130 | } | |
2131 | ||
b39a982d TV |
2132 | static int omapfb_parse_def_modes(struct omapfb2_device *fbdev) |
2133 | { | |
2134 | char *str, *options, *this_opt; | |
2135 | int r = 0; | |
2136 | ||
36e8c27f S |
2137 | str = kstrdup(def_mode, GFP_KERNEL); |
2138 | if (!str) | |
2139 | return -ENOMEM; | |
b39a982d TV |
2140 | options = str; |
2141 | ||
2142 | while (!r && (this_opt = strsep(&options, ",")) != NULL) { | |
2143 | char *p, *display_str, *mode_str; | |
2144 | struct omap_dss_device *display; | |
2145 | int i; | |
2146 | ||
2147 | p = strchr(this_opt, ':'); | |
2148 | if (!p) { | |
2149 | r = -EINVAL; | |
2150 | break; | |
2151 | } | |
2152 | ||
2153 | *p = 0; | |
2154 | display_str = this_opt; | |
2155 | mode_str = p + 1; | |
2156 | ||
2157 | display = NULL; | |
2158 | for (i = 0; i < fbdev->num_displays; ++i) { | |
2159 | if (strcmp(fbdev->displays[i]->name, | |
2160 | display_str) == 0) { | |
2161 | display = fbdev->displays[i]; | |
2162 | break; | |
2163 | } | |
2164 | } | |
2165 | ||
2166 | if (!display) { | |
2167 | r = -EINVAL; | |
2168 | break; | |
2169 | } | |
2170 | ||
a2699504 | 2171 | r = omapfb_set_def_mode(fbdev, display, mode_str); |
b39a982d TV |
2172 | if (r) |
2173 | break; | |
2174 | } | |
2175 | ||
2176 | kfree(str); | |
2177 | ||
2178 | return r; | |
2179 | } | |
2180 | ||
91ac27a6 TV |
2181 | static int omapfb_init_display(struct omapfb2_device *fbdev, |
2182 | struct omap_dss_device *dssdev) | |
2183 | { | |
2184 | struct omap_dss_driver *dssdrv = dssdev->driver; | |
2185 | int r; | |
2186 | ||
2187 | r = dssdrv->enable(dssdev); | |
2188 | if (r) { | |
2189 | dev_warn(fbdev->dev, "Failed to enable display '%s'\n", | |
2190 | dssdev->name); | |
2191 | return r; | |
2192 | } | |
2193 | ||
2194 | if (dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) { | |
2195 | u16 w, h; | |
2196 | if (dssdrv->enable_te) { | |
2197 | r = dssdrv->enable_te(dssdev, 1); | |
2198 | if (r) { | |
2199 | dev_err(fbdev->dev, "Failed to set TE\n"); | |
2200 | return r; | |
2201 | } | |
2202 | } | |
2203 | ||
2204 | if (dssdrv->set_update_mode) { | |
2205 | r = dssdrv->set_update_mode(dssdev, | |
2206 | OMAP_DSS_UPDATE_MANUAL); | |
2207 | if (r) { | |
2208 | dev_err(fbdev->dev, | |
2209 | "Failed to set update mode\n"); | |
2210 | return r; | |
2211 | } | |
2212 | } | |
2213 | ||
2214 | dssdrv->get_resolution(dssdev, &w, &h); | |
2215 | r = dssdrv->update(dssdev, 0, 0, w, h); | |
2216 | if (r) { | |
2217 | dev_err(fbdev->dev, | |
2218 | "Failed to update display\n"); | |
2219 | return r; | |
2220 | } | |
2221 | } else { | |
2222 | if (dssdrv->set_update_mode) { | |
2223 | r = dssdrv->set_update_mode(dssdev, | |
2224 | OMAP_DSS_UPDATE_AUTO); | |
2225 | if (r) { | |
2226 | dev_err(fbdev->dev, | |
2227 | "Failed to set update mode\n"); | |
2228 | return r; | |
2229 | } | |
2230 | } | |
2231 | } | |
2232 | ||
2233 | return 0; | |
2234 | } | |
2235 | ||
b39a982d TV |
2236 | static int omapfb_probe(struct platform_device *pdev) |
2237 | { | |
2238 | struct omapfb2_device *fbdev = NULL; | |
2239 | int r = 0; | |
2240 | int i; | |
2241 | struct omap_overlay *ovl; | |
2242 | struct omap_dss_device *def_display; | |
2243 | struct omap_dss_device *dssdev; | |
2244 | ||
2245 | DBG("omapfb_probe\n"); | |
2246 | ||
2247 | if (pdev->num_resources != 0) { | |
2248 | dev_err(&pdev->dev, "probed for an unknown device\n"); | |
2249 | r = -ENODEV; | |
2250 | goto err0; | |
2251 | } | |
2252 | ||
2253 | fbdev = kzalloc(sizeof(struct omapfb2_device), GFP_KERNEL); | |
2254 | if (fbdev == NULL) { | |
2255 | r = -ENOMEM; | |
2256 | goto err0; | |
2257 | } | |
2258 | ||
41814cfc SG |
2259 | /* TODO : Replace cpu check with omap_has_vrfb once HAS_FEATURE |
2260 | * available for OMAP2 and OMAP3 | |
2261 | */ | |
2262 | if (def_vrfb && !cpu_is_omap24xx() && !cpu_is_omap34xx()) { | |
2263 | def_vrfb = 0; | |
2264 | dev_warn(&pdev->dev, "VRFB is not supported on this hardware, " | |
2265 | "ignoring the module parameter vrfb=y\n"); | |
2266 | } | |
2267 | ||
2268 | ||
b39a982d TV |
2269 | mutex_init(&fbdev->mtx); |
2270 | ||
2271 | fbdev->dev = &pdev->dev; | |
2272 | platform_set_drvdata(pdev, fbdev); | |
2273 | ||
b3f91eb8 | 2274 | r = 0; |
b39a982d TV |
2275 | fbdev->num_displays = 0; |
2276 | dssdev = NULL; | |
2277 | for_each_dss_dev(dssdev) { | |
2278 | omap_dss_get_device(dssdev); | |
b3f91eb8 | 2279 | |
807a7515 TV |
2280 | if (!dssdev->driver) { |
2281 | dev_err(&pdev->dev, "no driver for display\n"); | |
b3f91eb8 | 2282 | r = -ENODEV; |
807a7515 | 2283 | } |
b3f91eb8 | 2284 | |
b39a982d TV |
2285 | fbdev->displays[fbdev->num_displays++] = dssdev; |
2286 | } | |
2287 | ||
b3f91eb8 TV |
2288 | if (r) |
2289 | goto cleanup; | |
2290 | ||
b39a982d TV |
2291 | if (fbdev->num_displays == 0) { |
2292 | dev_err(&pdev->dev, "no displays\n"); | |
2293 | r = -EINVAL; | |
2294 | goto cleanup; | |
2295 | } | |
2296 | ||
2297 | fbdev->num_overlays = omap_dss_get_num_overlays(); | |
2298 | for (i = 0; i < fbdev->num_overlays; i++) | |
2299 | fbdev->overlays[i] = omap_dss_get_overlay(i); | |
2300 | ||
2301 | fbdev->num_managers = omap_dss_get_num_overlay_managers(); | |
2302 | for (i = 0; i < fbdev->num_managers; i++) | |
2303 | fbdev->managers[i] = omap_dss_get_overlay_manager(i); | |
2304 | ||
2305 | if (def_mode && strlen(def_mode) > 0) { | |
2306 | if (omapfb_parse_def_modes(fbdev)) | |
2307 | dev_warn(&pdev->dev, "cannot parse default modes\n"); | |
2308 | } | |
2309 | ||
2310 | r = omapfb_create_framebuffers(fbdev); | |
2311 | if (r) | |
2312 | goto cleanup; | |
2313 | ||
2314 | for (i = 0; i < fbdev->num_managers; i++) { | |
2315 | struct omap_overlay_manager *mgr; | |
2316 | mgr = fbdev->managers[i]; | |
2317 | r = mgr->apply(mgr); | |
2318 | if (r) | |
2319 | dev_warn(fbdev->dev, "failed to apply dispc config\n"); | |
2320 | } | |
2321 | ||
2322 | DBG("mgr->apply'ed\n"); | |
2323 | ||
2324 | /* gfx overlay should be the default one. find a display | |
2325 | * connected to that, and use it as default display */ | |
2326 | ovl = omap_dss_get_overlay(0); | |
2327 | if (ovl->manager && ovl->manager->device) { | |
2328 | def_display = ovl->manager->device; | |
2329 | } else { | |
2330 | dev_warn(&pdev->dev, "cannot find default display\n"); | |
2331 | def_display = NULL; | |
2332 | } | |
2333 | ||
2334 | if (def_display) { | |
91ac27a6 | 2335 | r = omapfb_init_display(fbdev, def_display); |
6d2e0bd6 | 2336 | if (r) { |
91ac27a6 TV |
2337 | dev_err(fbdev->dev, |
2338 | "failed to initialize default " | |
2339 | "display\n"); | |
6d2e0bd6 TV |
2340 | goto cleanup; |
2341 | } | |
b39a982d TV |
2342 | } |
2343 | ||
e26ed44c AM |
2344 | DBG("create sysfs for fbs\n"); |
2345 | r = omapfb_create_sysfs(fbdev); | |
2346 | if (r) { | |
2347 | dev_err(fbdev->dev, "failed to create sysfs entries\n"); | |
2348 | goto cleanup; | |
2349 | } | |
2350 | ||
b39a982d TV |
2351 | return 0; |
2352 | ||
2353 | cleanup: | |
2354 | omapfb_free_resources(fbdev); | |
2355 | err0: | |
2356 | dev_err(&pdev->dev, "failed to setup omapfb\n"); | |
2357 | return r; | |
2358 | } | |
2359 | ||
2360 | static int omapfb_remove(struct platform_device *pdev) | |
2361 | { | |
2362 | struct omapfb2_device *fbdev = platform_get_drvdata(pdev); | |
2363 | ||
2364 | /* FIXME: wait till completion of pending events */ | |
2365 | ||
2366 | omapfb_remove_sysfs(fbdev); | |
2367 | ||
2368 | omapfb_free_resources(fbdev); | |
2369 | ||
2370 | return 0; | |
2371 | } | |
2372 | ||
2373 | static struct platform_driver omapfb_driver = { | |
2374 | .probe = omapfb_probe, | |
2375 | .remove = omapfb_remove, | |
2376 | .driver = { | |
2377 | .name = "omapfb", | |
2378 | .owner = THIS_MODULE, | |
2379 | }, | |
2380 | }; | |
2381 | ||
2382 | static int __init omapfb_init(void) | |
2383 | { | |
2384 | DBG("omapfb_init\n"); | |
2385 | ||
2386 | if (platform_driver_register(&omapfb_driver)) { | |
2387 | printk(KERN_ERR "failed to register omapfb driver\n"); | |
2388 | return -ENODEV; | |
2389 | } | |
2390 | ||
2391 | return 0; | |
2392 | } | |
2393 | ||
2394 | static void __exit omapfb_exit(void) | |
2395 | { | |
2396 | DBG("omapfb_exit\n"); | |
2397 | platform_driver_unregister(&omapfb_driver); | |
2398 | } | |
2399 | ||
2400 | module_param_named(mode, def_mode, charp, 0); | |
2401 | module_param_named(vram, def_vram, charp, 0); | |
2402 | module_param_named(rotate, def_rotate, int, 0); | |
2403 | module_param_named(vrfb, def_vrfb, bool, 0); | |
2404 | module_param_named(mirror, def_mirror, bool, 0); | |
2405 | ||
2406 | /* late_initcall to let panel/ctrl drivers loaded first. | |
2407 | * I guess better option would be a more dynamic approach, | |
2408 | * so that omapfb reacts to new panels when they are loaded */ | |
2409 | late_initcall(omapfb_init); | |
2410 | /*module_init(omapfb_init);*/ | |
2411 | module_exit(omapfb_exit); | |
2412 | ||
2413 | MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@nokia.com>"); | |
2414 | MODULE_DESCRIPTION("OMAP2/3 Framebuffer"); | |
2415 | MODULE_LICENSE("GPL v2"); |