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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; | |
90ab5ee9 | 46 | static bool def_vrfb; |
b39a982d | 47 | static int def_rotate; |
90ab5ee9 | 48 | static bool def_mirror; |
27cc213e TV |
49 | static bool auto_update; |
50 | static unsigned int auto_update_freq; | |
51 | module_param(auto_update, bool, 0); | |
52 | module_param(auto_update_freq, uint, 0644); | |
b39a982d TV |
53 | |
54 | #ifdef DEBUG | |
90ab5ee9 | 55 | bool omapfb_debug; |
b39a982d | 56 | module_param_named(debug, omapfb_debug, bool, 0644); |
90ab5ee9 | 57 | static bool omapfb_test_pattern; |
b39a982d TV |
58 | module_param_named(test, omapfb_test_pattern, bool, 0644); |
59 | #endif | |
60 | ||
61 | static int omapfb_fb_init(struct omapfb2_device *fbdev, struct fb_info *fbi); | |
a2699504 TV |
62 | static int omapfb_get_recommended_bpp(struct omapfb2_device *fbdev, |
63 | struct omap_dss_device *dssdev); | |
b39a982d TV |
64 | |
65 | #ifdef DEBUG | |
66 | static void draw_pixel(struct fb_info *fbi, int x, int y, unsigned color) | |
67 | { | |
68 | struct fb_var_screeninfo *var = &fbi->var; | |
69 | struct fb_fix_screeninfo *fix = &fbi->fix; | |
70 | void __iomem *addr = fbi->screen_base; | |
71 | const unsigned bytespp = var->bits_per_pixel >> 3; | |
72 | const unsigned line_len = fix->line_length / bytespp; | |
73 | ||
74 | int r = (color >> 16) & 0xff; | |
75 | int g = (color >> 8) & 0xff; | |
76 | int b = (color >> 0) & 0xff; | |
77 | ||
78 | if (var->bits_per_pixel == 16) { | |
79 | u16 __iomem *p = (u16 __iomem *)addr; | |
80 | p += y * line_len + x; | |
81 | ||
82 | r = r * 32 / 256; | |
83 | g = g * 64 / 256; | |
84 | b = b * 32 / 256; | |
85 | ||
86 | __raw_writew((r << 11) | (g << 5) | (b << 0), p); | |
87 | } else if (var->bits_per_pixel == 24) { | |
88 | u8 __iomem *p = (u8 __iomem *)addr; | |
89 | p += (y * line_len + x) * 3; | |
90 | ||
91 | __raw_writeb(b, p + 0); | |
92 | __raw_writeb(g, p + 1); | |
93 | __raw_writeb(r, p + 2); | |
94 | } else if (var->bits_per_pixel == 32) { | |
95 | u32 __iomem *p = (u32 __iomem *)addr; | |
96 | p += y * line_len + x; | |
97 | __raw_writel(color, p); | |
98 | } | |
99 | } | |
100 | ||
101 | static void fill_fb(struct fb_info *fbi) | |
102 | { | |
103 | struct fb_var_screeninfo *var = &fbi->var; | |
104 | const short w = var->xres_virtual; | |
105 | const short h = var->yres_virtual; | |
106 | void __iomem *addr = fbi->screen_base; | |
107 | int y, x; | |
108 | ||
109 | if (!addr) | |
110 | return; | |
111 | ||
112 | DBG("fill_fb %dx%d, line_len %d bytes\n", w, h, fbi->fix.line_length); | |
113 | ||
114 | for (y = 0; y < h; y++) { | |
115 | for (x = 0; x < w; x++) { | |
116 | if (x < 20 && y < 20) | |
117 | draw_pixel(fbi, x, y, 0xffffff); | |
118 | else if (x < 20 && (y > 20 && y < h - 20)) | |
119 | draw_pixel(fbi, x, y, 0xff); | |
120 | else if (y < 20 && (x > 20 && x < w - 20)) | |
121 | draw_pixel(fbi, x, y, 0xff00); | |
122 | else if (x > w - 20 && (y > 20 && y < h - 20)) | |
123 | draw_pixel(fbi, x, y, 0xff0000); | |
124 | else if (y > h - 20 && (x > 20 && x < w - 20)) | |
125 | draw_pixel(fbi, x, y, 0xffff00); | |
126 | else if (x == 20 || x == w - 20 || | |
127 | y == 20 || y == h - 20) | |
128 | draw_pixel(fbi, x, y, 0xffffff); | |
129 | else if (x == y || w - x == h - y) | |
130 | draw_pixel(fbi, x, y, 0xff00ff); | |
131 | else if (w - x == y || x == h - y) | |
132 | draw_pixel(fbi, x, y, 0x00ffff); | |
133 | else if (x > 20 && y > 20 && x < w - 20 && y < h - 20) { | |
134 | int t = x * 3 / w; | |
135 | unsigned r = 0, g = 0, b = 0; | |
136 | unsigned c; | |
137 | if (var->bits_per_pixel == 16) { | |
138 | if (t == 0) | |
139 | b = (y % 32) * 256 / 32; | |
140 | else if (t == 1) | |
141 | g = (y % 64) * 256 / 64; | |
142 | else if (t == 2) | |
143 | r = (y % 32) * 256 / 32; | |
144 | } else { | |
145 | if (t == 0) | |
146 | b = (y % 256); | |
147 | else if (t == 1) | |
148 | g = (y % 256); | |
149 | else if (t == 2) | |
150 | r = (y % 256); | |
151 | } | |
152 | c = (r << 16) | (g << 8) | (b << 0); | |
153 | draw_pixel(fbi, x, y, c); | |
154 | } else { | |
155 | draw_pixel(fbi, x, y, 0); | |
156 | } | |
157 | } | |
158 | } | |
159 | } | |
160 | #endif | |
161 | ||
a4c1a148 | 162 | static unsigned omapfb_get_vrfb_offset(const struct omapfb_info *ofbi, int rot) |
b39a982d | 163 | { |
078ff546 | 164 | const struct vrfb *vrfb = &ofbi->region->vrfb; |
b39a982d TV |
165 | unsigned offset; |
166 | ||
167 | switch (rot) { | |
168 | case FB_ROTATE_UR: | |
169 | offset = 0; | |
170 | break; | |
171 | case FB_ROTATE_CW: | |
172 | offset = vrfb->yoffset; | |
173 | break; | |
174 | case FB_ROTATE_UD: | |
175 | offset = vrfb->yoffset * OMAP_VRFB_LINE_LEN + vrfb->xoffset; | |
176 | break; | |
177 | case FB_ROTATE_CCW: | |
178 | offset = vrfb->xoffset * OMAP_VRFB_LINE_LEN; | |
179 | break; | |
180 | default: | |
181 | BUG(); | |
182 | } | |
183 | ||
184 | offset *= vrfb->bytespp; | |
185 | ||
186 | return offset; | |
187 | } | |
188 | ||
a4c1a148 | 189 | static u32 omapfb_get_region_rot_paddr(const struct omapfb_info *ofbi, int rot) |
b39a982d TV |
190 | { |
191 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { | |
078ff546 | 192 | return ofbi->region->vrfb.paddr[rot] |
b39a982d TV |
193 | + omapfb_get_vrfb_offset(ofbi, rot); |
194 | } else { | |
078ff546 | 195 | return ofbi->region->paddr; |
b39a982d TV |
196 | } |
197 | } | |
198 | ||
a4c1a148 | 199 | static u32 omapfb_get_region_paddr(const struct omapfb_info *ofbi) |
b39a982d TV |
200 | { |
201 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) | |
078ff546 | 202 | return ofbi->region->vrfb.paddr[0]; |
b39a982d | 203 | else |
078ff546 | 204 | return ofbi->region->paddr; |
b39a982d TV |
205 | } |
206 | ||
a4c1a148 | 207 | static void __iomem *omapfb_get_region_vaddr(const struct omapfb_info *ofbi) |
b39a982d TV |
208 | { |
209 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) | |
078ff546 | 210 | return ofbi->region->vrfb.vaddr[0]; |
b39a982d | 211 | else |
078ff546 | 212 | return ofbi->region->vaddr; |
b39a982d TV |
213 | } |
214 | ||
215 | static struct omapfb_colormode omapfb_colormodes[] = { | |
216 | { | |
217 | .dssmode = OMAP_DSS_COLOR_UYVY, | |
218 | .bits_per_pixel = 16, | |
219 | .nonstd = OMAPFB_COLOR_YUV422, | |
220 | }, { | |
221 | .dssmode = OMAP_DSS_COLOR_YUV2, | |
222 | .bits_per_pixel = 16, | |
223 | .nonstd = OMAPFB_COLOR_YUY422, | |
224 | }, { | |
225 | .dssmode = OMAP_DSS_COLOR_ARGB16, | |
226 | .bits_per_pixel = 16, | |
227 | .red = { .length = 4, .offset = 8, .msb_right = 0 }, | |
228 | .green = { .length = 4, .offset = 4, .msb_right = 0 }, | |
229 | .blue = { .length = 4, .offset = 0, .msb_right = 0 }, | |
230 | .transp = { .length = 4, .offset = 12, .msb_right = 0 }, | |
231 | }, { | |
232 | .dssmode = OMAP_DSS_COLOR_RGB16, | |
233 | .bits_per_pixel = 16, | |
234 | .red = { .length = 5, .offset = 11, .msb_right = 0 }, | |
235 | .green = { .length = 6, .offset = 5, .msb_right = 0 }, | |
236 | .blue = { .length = 5, .offset = 0, .msb_right = 0 }, | |
237 | .transp = { .length = 0, .offset = 0, .msb_right = 0 }, | |
238 | }, { | |
239 | .dssmode = OMAP_DSS_COLOR_RGB24P, | |
240 | .bits_per_pixel = 24, | |
241 | .red = { .length = 8, .offset = 16, .msb_right = 0 }, | |
242 | .green = { .length = 8, .offset = 8, .msb_right = 0 }, | |
243 | .blue = { .length = 8, .offset = 0, .msb_right = 0 }, | |
244 | .transp = { .length = 0, .offset = 0, .msb_right = 0 }, | |
245 | }, { | |
246 | .dssmode = OMAP_DSS_COLOR_RGB24U, | |
247 | .bits_per_pixel = 32, | |
248 | .red = { .length = 8, .offset = 16, .msb_right = 0 }, | |
249 | .green = { .length = 8, .offset = 8, .msb_right = 0 }, | |
250 | .blue = { .length = 8, .offset = 0, .msb_right = 0 }, | |
251 | .transp = { .length = 0, .offset = 0, .msb_right = 0 }, | |
252 | }, { | |
253 | .dssmode = OMAP_DSS_COLOR_ARGB32, | |
254 | .bits_per_pixel = 32, | |
255 | .red = { .length = 8, .offset = 16, .msb_right = 0 }, | |
256 | .green = { .length = 8, .offset = 8, .msb_right = 0 }, | |
257 | .blue = { .length = 8, .offset = 0, .msb_right = 0 }, | |
258 | .transp = { .length = 8, .offset = 24, .msb_right = 0 }, | |
259 | }, { | |
260 | .dssmode = OMAP_DSS_COLOR_RGBA32, | |
261 | .bits_per_pixel = 32, | |
262 | .red = { .length = 8, .offset = 24, .msb_right = 0 }, | |
263 | .green = { .length = 8, .offset = 16, .msb_right = 0 }, | |
264 | .blue = { .length = 8, .offset = 8, .msb_right = 0 }, | |
265 | .transp = { .length = 8, .offset = 0, .msb_right = 0 }, | |
266 | }, { | |
267 | .dssmode = OMAP_DSS_COLOR_RGBX32, | |
268 | .bits_per_pixel = 32, | |
269 | .red = { .length = 8, .offset = 24, .msb_right = 0 }, | |
270 | .green = { .length = 8, .offset = 16, .msb_right = 0 }, | |
271 | .blue = { .length = 8, .offset = 8, .msb_right = 0 }, | |
272 | .transp = { .length = 0, .offset = 0, .msb_right = 0 }, | |
273 | }, | |
274 | }; | |
275 | ||
276 | static bool cmp_var_to_colormode(struct fb_var_screeninfo *var, | |
277 | struct omapfb_colormode *color) | |
278 | { | |
279 | bool cmp_component(struct fb_bitfield *f1, struct fb_bitfield *f2) | |
280 | { | |
281 | return f1->length == f2->length && | |
282 | f1->offset == f2->offset && | |
283 | f1->msb_right == f2->msb_right; | |
284 | } | |
285 | ||
286 | if (var->bits_per_pixel == 0 || | |
287 | var->red.length == 0 || | |
288 | var->blue.length == 0 || | |
289 | var->green.length == 0) | |
290 | return 0; | |
291 | ||
292 | return var->bits_per_pixel == color->bits_per_pixel && | |
293 | cmp_component(&var->red, &color->red) && | |
294 | cmp_component(&var->green, &color->green) && | |
295 | cmp_component(&var->blue, &color->blue) && | |
296 | cmp_component(&var->transp, &color->transp); | |
297 | } | |
298 | ||
299 | static void assign_colormode_to_var(struct fb_var_screeninfo *var, | |
300 | struct omapfb_colormode *color) | |
301 | { | |
302 | var->bits_per_pixel = color->bits_per_pixel; | |
303 | var->nonstd = color->nonstd; | |
304 | var->red = color->red; | |
305 | var->green = color->green; | |
306 | var->blue = color->blue; | |
307 | var->transp = color->transp; | |
308 | } | |
309 | ||
310 | static int fb_mode_to_dss_mode(struct fb_var_screeninfo *var, | |
311 | enum omap_color_mode *mode) | |
312 | { | |
313 | enum omap_color_mode dssmode; | |
314 | int i; | |
315 | ||
316 | /* first match with nonstd field */ | |
317 | if (var->nonstd) { | |
318 | for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) { | |
319 | struct omapfb_colormode *m = &omapfb_colormodes[i]; | |
320 | if (var->nonstd == m->nonstd) { | |
321 | assign_colormode_to_var(var, m); | |
322 | *mode = m->dssmode; | |
323 | return 0; | |
324 | } | |
325 | } | |
326 | ||
327 | return -EINVAL; | |
328 | } | |
329 | ||
330 | /* then try exact match of bpp and colors */ | |
331 | for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) { | |
332 | struct omapfb_colormode *m = &omapfb_colormodes[i]; | |
333 | if (cmp_var_to_colormode(var, m)) { | |
334 | assign_colormode_to_var(var, m); | |
335 | *mode = m->dssmode; | |
336 | return 0; | |
337 | } | |
338 | } | |
339 | ||
340 | /* match with bpp if user has not filled color fields | |
341 | * properly */ | |
342 | switch (var->bits_per_pixel) { | |
343 | case 1: | |
344 | dssmode = OMAP_DSS_COLOR_CLUT1; | |
345 | break; | |
346 | case 2: | |
347 | dssmode = OMAP_DSS_COLOR_CLUT2; | |
348 | break; | |
349 | case 4: | |
350 | dssmode = OMAP_DSS_COLOR_CLUT4; | |
351 | break; | |
352 | case 8: | |
353 | dssmode = OMAP_DSS_COLOR_CLUT8; | |
354 | break; | |
355 | case 12: | |
356 | dssmode = OMAP_DSS_COLOR_RGB12U; | |
357 | break; | |
358 | case 16: | |
359 | dssmode = OMAP_DSS_COLOR_RGB16; | |
360 | break; | |
361 | case 24: | |
362 | dssmode = OMAP_DSS_COLOR_RGB24P; | |
363 | break; | |
364 | case 32: | |
365 | dssmode = OMAP_DSS_COLOR_RGB24U; | |
366 | break; | |
367 | default: | |
368 | return -EINVAL; | |
369 | } | |
370 | ||
371 | for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) { | |
372 | struct omapfb_colormode *m = &omapfb_colormodes[i]; | |
373 | if (dssmode == m->dssmode) { | |
374 | assign_colormode_to_var(var, m); | |
375 | *mode = m->dssmode; | |
376 | return 0; | |
377 | } | |
378 | } | |
379 | ||
380 | return -EINVAL; | |
381 | } | |
382 | ||
383 | static int check_fb_res_bounds(struct fb_var_screeninfo *var) | |
384 | { | |
385 | int xres_min = OMAPFB_PLANE_XRES_MIN; | |
386 | int xres_max = 2048; | |
387 | int yres_min = OMAPFB_PLANE_YRES_MIN; | |
388 | int yres_max = 2048; | |
389 | ||
390 | /* XXX: some applications seem to set virtual res to 0. */ | |
391 | if (var->xres_virtual == 0) | |
392 | var->xres_virtual = var->xres; | |
393 | ||
394 | if (var->yres_virtual == 0) | |
395 | var->yres_virtual = var->yres; | |
396 | ||
397 | if (var->xres_virtual < xres_min || var->yres_virtual < yres_min) | |
398 | return -EINVAL; | |
399 | ||
400 | if (var->xres < xres_min) | |
401 | var->xres = xres_min; | |
402 | if (var->yres < yres_min) | |
403 | var->yres = yres_min; | |
404 | if (var->xres > xres_max) | |
405 | var->xres = xres_max; | |
406 | if (var->yres > yres_max) | |
407 | var->yres = yres_max; | |
408 | ||
409 | if (var->xres > var->xres_virtual) | |
410 | var->xres = var->xres_virtual; | |
411 | if (var->yres > var->yres_virtual) | |
412 | var->yres = var->yres_virtual; | |
413 | ||
414 | return 0; | |
415 | } | |
416 | ||
417 | static void shrink_height(unsigned long max_frame_size, | |
418 | struct fb_var_screeninfo *var) | |
419 | { | |
420 | DBG("can't fit FB into memory, reducing y\n"); | |
421 | var->yres_virtual = max_frame_size / | |
422 | (var->xres_virtual * var->bits_per_pixel >> 3); | |
423 | ||
424 | if (var->yres_virtual < OMAPFB_PLANE_YRES_MIN) | |
425 | var->yres_virtual = OMAPFB_PLANE_YRES_MIN; | |
426 | ||
427 | if (var->yres > var->yres_virtual) | |
428 | var->yres = var->yres_virtual; | |
429 | } | |
430 | ||
431 | static void shrink_width(unsigned long max_frame_size, | |
432 | struct fb_var_screeninfo *var) | |
433 | { | |
434 | DBG("can't fit FB into memory, reducing x\n"); | |
435 | var->xres_virtual = max_frame_size / var->yres_virtual / | |
436 | (var->bits_per_pixel >> 3); | |
437 | ||
438 | if (var->xres_virtual < OMAPFB_PLANE_XRES_MIN) | |
439 | var->xres_virtual = OMAPFB_PLANE_XRES_MIN; | |
440 | ||
441 | if (var->xres > var->xres_virtual) | |
442 | var->xres = var->xres_virtual; | |
443 | } | |
444 | ||
445 | static int check_vrfb_fb_size(unsigned long region_size, | |
446 | const struct fb_var_screeninfo *var) | |
447 | { | |
448 | unsigned long min_phys_size = omap_vrfb_min_phys_size(var->xres_virtual, | |
449 | var->yres_virtual, var->bits_per_pixel >> 3); | |
450 | ||
451 | return min_phys_size > region_size ? -EINVAL : 0; | |
452 | } | |
453 | ||
454 | static int check_fb_size(const struct omapfb_info *ofbi, | |
455 | struct fb_var_screeninfo *var) | |
456 | { | |
078ff546 | 457 | unsigned long max_frame_size = ofbi->region->size; |
b39a982d TV |
458 | int bytespp = var->bits_per_pixel >> 3; |
459 | unsigned long line_size = var->xres_virtual * bytespp; | |
460 | ||
461 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { | |
462 | /* One needs to check for both VRFB and OMAPFB limitations. */ | |
463 | if (check_vrfb_fb_size(max_frame_size, var)) | |
464 | shrink_height(omap_vrfb_max_height( | |
465 | max_frame_size, var->xres_virtual, bytespp) * | |
466 | line_size, var); | |
467 | ||
468 | if (check_vrfb_fb_size(max_frame_size, var)) { | |
469 | DBG("cannot fit FB to memory\n"); | |
470 | return -EINVAL; | |
471 | } | |
472 | ||
473 | return 0; | |
474 | } | |
475 | ||
476 | DBG("max frame size %lu, line size %lu\n", max_frame_size, line_size); | |
477 | ||
478 | if (line_size * var->yres_virtual > max_frame_size) | |
479 | shrink_height(max_frame_size, var); | |
480 | ||
481 | if (line_size * var->yres_virtual > max_frame_size) { | |
482 | shrink_width(max_frame_size, var); | |
483 | line_size = var->xres_virtual * bytespp; | |
484 | } | |
485 | ||
486 | if (line_size * var->yres_virtual > max_frame_size) { | |
487 | DBG("cannot fit FB to memory\n"); | |
488 | return -EINVAL; | |
489 | } | |
490 | ||
491 | return 0; | |
492 | } | |
493 | ||
494 | /* | |
495 | * Consider if VRFB assisted rotation is in use and if the virtual space for | |
496 | * the zero degree view needs to be mapped. The need for mapping also acts as | |
497 | * the trigger for setting up the hardware on the context in question. This | |
498 | * ensures that one does not attempt to access the virtual view before the | |
499 | * hardware is serving the address translations. | |
500 | */ | |
501 | static int setup_vrfb_rotation(struct fb_info *fbi) | |
502 | { | |
503 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
078ff546 | 504 | struct omapfb2_mem_region *rg = ofbi->region; |
b39a982d TV |
505 | struct vrfb *vrfb = &rg->vrfb; |
506 | struct fb_var_screeninfo *var = &fbi->var; | |
507 | struct fb_fix_screeninfo *fix = &fbi->fix; | |
508 | unsigned bytespp; | |
509 | bool yuv_mode; | |
510 | enum omap_color_mode mode; | |
511 | int r; | |
512 | bool reconf; | |
513 | ||
514 | if (!rg->size || ofbi->rotation_type != OMAP_DSS_ROT_VRFB) | |
515 | return 0; | |
516 | ||
517 | DBG("setup_vrfb_rotation\n"); | |
518 | ||
519 | r = fb_mode_to_dss_mode(var, &mode); | |
520 | if (r) | |
521 | return r; | |
522 | ||
523 | bytespp = var->bits_per_pixel >> 3; | |
524 | ||
525 | yuv_mode = mode == OMAP_DSS_COLOR_YUV2 || mode == OMAP_DSS_COLOR_UYVY; | |
526 | ||
527 | /* We need to reconfigure VRFB if the resolution changes, if yuv mode | |
528 | * is enabled/disabled, or if bytes per pixel changes */ | |
529 | ||
530 | /* XXX we shouldn't allow this when framebuffer is mmapped */ | |
531 | ||
532 | reconf = false; | |
533 | ||
534 | if (yuv_mode != vrfb->yuv_mode) | |
535 | reconf = true; | |
536 | else if (bytespp != vrfb->bytespp) | |
537 | reconf = true; | |
538 | else if (vrfb->xres != var->xres_virtual || | |
539 | vrfb->yres != var->yres_virtual) | |
540 | reconf = true; | |
541 | ||
542 | if (vrfb->vaddr[0] && reconf) { | |
543 | fbi->screen_base = NULL; | |
544 | fix->smem_start = 0; | |
545 | fix->smem_len = 0; | |
546 | iounmap(vrfb->vaddr[0]); | |
547 | vrfb->vaddr[0] = NULL; | |
548 | DBG("setup_vrfb_rotation: reset fb\n"); | |
549 | } | |
550 | ||
551 | if (vrfb->vaddr[0]) | |
552 | return 0; | |
553 | ||
554 | omap_vrfb_setup(&rg->vrfb, rg->paddr, | |
555 | var->xres_virtual, | |
556 | var->yres_virtual, | |
557 | bytespp, yuv_mode); | |
558 | ||
559 | /* Now one can ioremap the 0 angle view */ | |
560 | r = omap_vrfb_map_angle(vrfb, var->yres_virtual, 0); | |
561 | if (r) | |
562 | return r; | |
563 | ||
564 | /* used by open/write in fbmem.c */ | |
078ff546 | 565 | fbi->screen_base = ofbi->region->vrfb.vaddr[0]; |
b39a982d | 566 | |
078ff546 | 567 | fix->smem_start = ofbi->region->vrfb.paddr[0]; |
b39a982d TV |
568 | |
569 | switch (var->nonstd) { | |
570 | case OMAPFB_COLOR_YUV422: | |
571 | case OMAPFB_COLOR_YUY422: | |
572 | fix->line_length = | |
573 | (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 2; | |
574 | break; | |
575 | default: | |
576 | fix->line_length = | |
577 | (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 3; | |
578 | break; | |
579 | } | |
580 | ||
581 | fix->smem_len = var->yres_virtual * fix->line_length; | |
582 | ||
583 | return 0; | |
584 | } | |
585 | ||
586 | int dss_mode_to_fb_mode(enum omap_color_mode dssmode, | |
587 | struct fb_var_screeninfo *var) | |
588 | { | |
589 | int i; | |
590 | ||
591 | for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) { | |
592 | struct omapfb_colormode *mode = &omapfb_colormodes[i]; | |
593 | if (dssmode == mode->dssmode) { | |
594 | assign_colormode_to_var(var, mode); | |
595 | return 0; | |
596 | } | |
597 | } | |
598 | return -ENOENT; | |
599 | } | |
600 | ||
601 | void set_fb_fix(struct fb_info *fbi) | |
602 | { | |
603 | struct fb_fix_screeninfo *fix = &fbi->fix; | |
604 | struct fb_var_screeninfo *var = &fbi->var; | |
605 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
078ff546 | 606 | struct omapfb2_mem_region *rg = ofbi->region; |
b39a982d TV |
607 | |
608 | DBG("set_fb_fix\n"); | |
609 | ||
610 | /* used by open/write in fbmem.c */ | |
611 | fbi->screen_base = (char __iomem *)omapfb_get_region_vaddr(ofbi); | |
612 | ||
613 | /* used by mmap in fbmem.c */ | |
614 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { | |
615 | switch (var->nonstd) { | |
616 | case OMAPFB_COLOR_YUV422: | |
617 | case OMAPFB_COLOR_YUY422: | |
618 | fix->line_length = | |
619 | (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 2; | |
620 | break; | |
621 | default: | |
622 | fix->line_length = | |
623 | (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 3; | |
624 | break; | |
625 | } | |
626 | ||
627 | fix->smem_len = var->yres_virtual * fix->line_length; | |
628 | } else { | |
629 | fix->line_length = | |
630 | (var->xres_virtual * var->bits_per_pixel) >> 3; | |
631 | fix->smem_len = rg->size; | |
632 | } | |
633 | ||
634 | fix->smem_start = omapfb_get_region_paddr(ofbi); | |
635 | ||
636 | fix->type = FB_TYPE_PACKED_PIXELS; | |
637 | ||
638 | if (var->nonstd) | |
639 | fix->visual = FB_VISUAL_PSEUDOCOLOR; | |
640 | else { | |
641 | switch (var->bits_per_pixel) { | |
642 | case 32: | |
643 | case 24: | |
644 | case 16: | |
645 | case 12: | |
646 | fix->visual = FB_VISUAL_TRUECOLOR; | |
647 | /* 12bpp is stored in 16 bits */ | |
648 | break; | |
649 | case 1: | |
650 | case 2: | |
651 | case 4: | |
652 | case 8: | |
653 | fix->visual = FB_VISUAL_PSEUDOCOLOR; | |
654 | break; | |
655 | } | |
656 | } | |
657 | ||
658 | fix->accel = FB_ACCEL_NONE; | |
659 | ||
660 | fix->xpanstep = 1; | |
661 | fix->ypanstep = 1; | |
662 | } | |
663 | ||
664 | /* check new var and possibly modify it to be ok */ | |
665 | int check_fb_var(struct fb_info *fbi, struct fb_var_screeninfo *var) | |
666 | { | |
667 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
668 | struct omap_dss_device *display = fb2display(fbi); | |
669 | enum omap_color_mode mode = 0; | |
670 | int i; | |
671 | int r; | |
672 | ||
673 | DBG("check_fb_var %d\n", ofbi->id); | |
674 | ||
1ceafc00 VS |
675 | WARN_ON(!atomic_read(&ofbi->region->lock_count)); |
676 | ||
b39a982d TV |
677 | r = fb_mode_to_dss_mode(var, &mode); |
678 | if (r) { | |
679 | DBG("cannot convert var to omap dss mode\n"); | |
680 | return r; | |
681 | } | |
682 | ||
683 | for (i = 0; i < ofbi->num_overlays; ++i) { | |
684 | if ((ofbi->overlays[i]->supported_modes & mode) == 0) { | |
685 | DBG("invalid mode\n"); | |
686 | return -EINVAL; | |
687 | } | |
688 | } | |
689 | ||
86f2d7dd | 690 | if (var->rotate > 3) |
b39a982d TV |
691 | return -EINVAL; |
692 | ||
693 | if (check_fb_res_bounds(var)) | |
694 | return -EINVAL; | |
695 | ||
276a1d43 | 696 | /* When no memory is allocated ignore the size check */ |
078ff546 | 697 | if (ofbi->region->size != 0 && check_fb_size(ofbi, var)) |
b39a982d TV |
698 | return -EINVAL; |
699 | ||
700 | if (var->xres + var->xoffset > var->xres_virtual) | |
701 | var->xoffset = var->xres_virtual - var->xres; | |
702 | if (var->yres + var->yoffset > var->yres_virtual) | |
703 | var->yoffset = var->yres_virtual - var->yres; | |
704 | ||
705 | DBG("xres = %d, yres = %d, vxres = %d, vyres = %d\n", | |
706 | var->xres, var->yres, | |
707 | var->xres_virtual, var->yres_virtual); | |
708 | ||
7a0987bf JN |
709 | if (display && display->driver->get_dimensions) { |
710 | u32 w, h; | |
711 | display->driver->get_dimensions(display, &w, &h); | |
712 | var->width = DIV_ROUND_CLOSEST(w, 1000); | |
713 | var->height = DIV_ROUND_CLOSEST(h, 1000); | |
714 | } else { | |
715 | var->height = -1; | |
716 | var->width = -1; | |
717 | } | |
718 | ||
b39a982d TV |
719 | var->grayscale = 0; |
720 | ||
69b2048f | 721 | if (display && display->driver->get_timings) { |
b39a982d | 722 | struct omap_video_timings timings; |
69b2048f | 723 | display->driver->get_timings(display, &timings); |
b39a982d TV |
724 | |
725 | /* pixclock in ps, the rest in pixclock */ | |
726 | var->pixclock = timings.pixel_clock != 0 ? | |
727 | KHZ2PICOS(timings.pixel_clock) : | |
728 | 0; | |
87ba8288 TK |
729 | var->left_margin = timings.hbp; |
730 | var->right_margin = timings.hfp; | |
731 | var->upper_margin = timings.vbp; | |
732 | var->lower_margin = timings.vfp; | |
b39a982d TV |
733 | var->hsync_len = timings.hsw; |
734 | var->vsync_len = timings.vsw; | |
735 | } else { | |
736 | var->pixclock = 0; | |
737 | var->left_margin = 0; | |
738 | var->right_margin = 0; | |
739 | var->upper_margin = 0; | |
740 | var->lower_margin = 0; | |
741 | var->hsync_len = 0; | |
742 | var->vsync_len = 0; | |
743 | } | |
744 | ||
745 | /* TODO: get these from panel->config */ | |
746 | var->vmode = FB_VMODE_NONINTERLACED; | |
747 | var->sync = 0; | |
748 | ||
749 | return 0; | |
750 | } | |
751 | ||
752 | /* | |
753 | * --------------------------------------------------------------------------- | |
754 | * fbdev framework callbacks | |
755 | * --------------------------------------------------------------------------- | |
756 | */ | |
757 | static int omapfb_open(struct fb_info *fbi, int user) | |
758 | { | |
759 | return 0; | |
760 | } | |
761 | ||
762 | static int omapfb_release(struct fb_info *fbi, int user) | |
763 | { | |
b39a982d TV |
764 | return 0; |
765 | } | |
766 | ||
a4c1a148 VS |
767 | static unsigned calc_rotation_offset_dma(const struct fb_var_screeninfo *var, |
768 | const struct fb_fix_screeninfo *fix, int rotation) | |
b39a982d TV |
769 | { |
770 | unsigned offset; | |
771 | ||
772 | offset = var->yoffset * fix->line_length + | |
773 | var->xoffset * (var->bits_per_pixel >> 3); | |
774 | ||
775 | return offset; | |
776 | } | |
777 | ||
a4c1a148 VS |
778 | static unsigned calc_rotation_offset_vrfb(const struct fb_var_screeninfo *var, |
779 | const struct fb_fix_screeninfo *fix, int rotation) | |
b39a982d TV |
780 | { |
781 | unsigned offset; | |
782 | ||
783 | if (rotation == FB_ROTATE_UD) | |
784 | offset = (var->yres_virtual - var->yres) * | |
785 | fix->line_length; | |
786 | else if (rotation == FB_ROTATE_CW) | |
787 | offset = (var->yres_virtual - var->yres) * | |
788 | (var->bits_per_pixel >> 3); | |
789 | else | |
790 | offset = 0; | |
791 | ||
792 | if (rotation == FB_ROTATE_UR) | |
793 | offset += var->yoffset * fix->line_length + | |
794 | var->xoffset * (var->bits_per_pixel >> 3); | |
795 | else if (rotation == FB_ROTATE_UD) | |
796 | offset -= var->yoffset * fix->line_length + | |
797 | var->xoffset * (var->bits_per_pixel >> 3); | |
798 | else if (rotation == FB_ROTATE_CW) | |
799 | offset -= var->xoffset * fix->line_length + | |
800 | var->yoffset * (var->bits_per_pixel >> 3); | |
801 | else if (rotation == FB_ROTATE_CCW) | |
802 | offset += var->xoffset * fix->line_length + | |
803 | var->yoffset * (var->bits_per_pixel >> 3); | |
804 | ||
805 | return offset; | |
806 | } | |
807 | ||
46d3524a VS |
808 | static void omapfb_calc_addr(const struct omapfb_info *ofbi, |
809 | const struct fb_var_screeninfo *var, | |
810 | const struct fb_fix_screeninfo *fix, | |
212b0d50 | 811 | int rotation, u32 *paddr) |
46d3524a VS |
812 | { |
813 | u32 data_start_p; | |
46d3524a VS |
814 | int offset; |
815 | ||
212b0d50 | 816 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) |
46d3524a | 817 | data_start_p = omapfb_get_region_rot_paddr(ofbi, rotation); |
212b0d50 | 818 | else |
46d3524a | 819 | data_start_p = omapfb_get_region_paddr(ofbi); |
46d3524a VS |
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; | |
46d3524a VS |
827 | |
828 | if (offset) | |
829 | DBG("offset %d, %d = %d\n", | |
830 | var->xoffset, var->yoffset, offset); | |
831 | ||
212b0d50 | 832 | DBG("paddr %x\n", data_start_p); |
46d3524a VS |
833 | |
834 | *paddr = data_start_p; | |
46d3524a | 835 | } |
b39a982d TV |
836 | |
837 | /* setup overlay according to the fb */ | |
078ff546 | 838 | int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl, |
b39a982d TV |
839 | u16 posx, u16 posy, u16 outw, u16 outh) |
840 | { | |
841 | int r = 0; | |
842 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
843 | struct fb_var_screeninfo *var = &fbi->var; | |
844 | struct fb_fix_screeninfo *fix = &fbi->fix; | |
845 | enum omap_color_mode mode = 0; | |
46d3524a | 846 | u32 data_start_p = 0; |
b39a982d TV |
847 | struct omap_overlay_info info; |
848 | int xres, yres; | |
849 | int screen_width; | |
850 | int mirror; | |
851 | int rotation = var->rotate; | |
852 | int i; | |
853 | ||
1ceafc00 VS |
854 | WARN_ON(!atomic_read(&ofbi->region->lock_count)); |
855 | ||
b39a982d TV |
856 | for (i = 0; i < ofbi->num_overlays; i++) { |
857 | if (ovl != ofbi->overlays[i]) | |
858 | continue; | |
859 | ||
860 | rotation = (rotation + ofbi->rotation[i]) % 4; | |
861 | break; | |
862 | } | |
863 | ||
864 | DBG("setup_overlay %d, posx %d, posy %d, outw %d, outh %d\n", ofbi->id, | |
865 | posx, posy, outw, outh); | |
866 | ||
867 | if (rotation == FB_ROTATE_CW || rotation == FB_ROTATE_CCW) { | |
868 | xres = var->yres; | |
869 | yres = var->xres; | |
870 | } else { | |
871 | xres = var->xres; | |
872 | yres = var->yres; | |
873 | } | |
874 | ||
078ff546 | 875 | if (ofbi->region->size) |
212b0d50 | 876 | omapfb_calc_addr(ofbi, var, fix, rotation, &data_start_p); |
b39a982d TV |
877 | |
878 | r = fb_mode_to_dss_mode(var, &mode); | |
879 | if (r) { | |
880 | DBG("fb_mode_to_dss_mode failed"); | |
881 | goto err; | |
882 | } | |
883 | ||
884 | switch (var->nonstd) { | |
885 | case OMAPFB_COLOR_YUV422: | |
886 | case OMAPFB_COLOR_YUY422: | |
887 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { | |
888 | screen_width = fix->line_length | |
889 | / (var->bits_per_pixel >> 2); | |
890 | break; | |
891 | } | |
892 | default: | |
893 | screen_width = fix->line_length / (var->bits_per_pixel >> 3); | |
894 | break; | |
895 | } | |
896 | ||
897 | ovl->get_overlay_info(ovl, &info); | |
898 | ||
899 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) | |
900 | mirror = 0; | |
901 | else | |
902 | mirror = ofbi->mirror; | |
903 | ||
904 | info.paddr = data_start_p; | |
b39a982d TV |
905 | info.screen_width = screen_width; |
906 | info.width = xres; | |
907 | info.height = yres; | |
908 | info.color_mode = mode; | |
909 | info.rotation_type = ofbi->rotation_type; | |
910 | info.rotation = rotation; | |
911 | info.mirror = mirror; | |
912 | ||
913 | info.pos_x = posx; | |
914 | info.pos_y = posy; | |
915 | info.out_width = outw; | |
916 | info.out_height = outh; | |
917 | ||
918 | r = ovl->set_overlay_info(ovl, &info); | |
919 | if (r) { | |
920 | DBG("ovl->setup_overlay_info failed\n"); | |
921 | goto err; | |
922 | } | |
923 | ||
924 | return 0; | |
925 | ||
926 | err: | |
927 | DBG("setup_overlay failed\n"); | |
928 | return r; | |
929 | } | |
930 | ||
931 | /* apply var to the overlay */ | |
932 | int omapfb_apply_changes(struct fb_info *fbi, int init) | |
933 | { | |
934 | int r = 0; | |
935 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
936 | struct fb_var_screeninfo *var = &fbi->var; | |
937 | struct omap_overlay *ovl; | |
938 | u16 posx, posy; | |
939 | u16 outw, outh; | |
940 | int i; | |
941 | ||
942 | #ifdef DEBUG | |
943 | if (omapfb_test_pattern) | |
944 | fill_fb(fbi); | |
945 | #endif | |
946 | ||
1ceafc00 VS |
947 | WARN_ON(!atomic_read(&ofbi->region->lock_count)); |
948 | ||
b39a982d TV |
949 | for (i = 0; i < ofbi->num_overlays; i++) { |
950 | ovl = ofbi->overlays[i]; | |
951 | ||
952 | DBG("apply_changes, fb %d, ovl %d\n", ofbi->id, ovl->id); | |
953 | ||
078ff546 | 954 | if (ofbi->region->size == 0) { |
b39a982d TV |
955 | /* the fb is not available. disable the overlay */ |
956 | omapfb_overlay_enable(ovl, 0); | |
957 | if (!init && ovl->manager) | |
958 | ovl->manager->apply(ovl->manager); | |
959 | continue; | |
960 | } | |
961 | ||
962 | if (init || (ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) { | |
963 | int rotation = (var->rotate + ofbi->rotation[i]) % 4; | |
964 | if (rotation == FB_ROTATE_CW || | |
965 | rotation == FB_ROTATE_CCW) { | |
966 | outw = var->yres; | |
967 | outh = var->xres; | |
968 | } else { | |
969 | outw = var->xres; | |
970 | outh = var->yres; | |
971 | } | |
972 | } else { | |
c1a9febf TV |
973 | struct omap_overlay_info info; |
974 | ovl->get_overlay_info(ovl, &info); | |
975 | outw = info.out_width; | |
976 | outh = info.out_height; | |
b39a982d TV |
977 | } |
978 | ||
979 | if (init) { | |
980 | posx = 0; | |
981 | posy = 0; | |
982 | } else { | |
c1a9febf TV |
983 | struct omap_overlay_info info; |
984 | ovl->get_overlay_info(ovl, &info); | |
985 | posx = info.pos_x; | |
986 | posy = info.pos_y; | |
b39a982d TV |
987 | } |
988 | ||
989 | r = omapfb_setup_overlay(fbi, ovl, posx, posy, outw, outh); | |
990 | if (r) | |
991 | goto err; | |
992 | ||
993 | if (!init && ovl->manager) | |
994 | ovl->manager->apply(ovl->manager); | |
995 | } | |
996 | return 0; | |
997 | err: | |
998 | DBG("apply_changes failed\n"); | |
999 | return r; | |
1000 | } | |
1001 | ||
1002 | /* checks var and eventually tweaks it to something supported, | |
1003 | * DO NOT MODIFY PAR */ | |
1004 | static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi) | |
1005 | { | |
430571d5 | 1006 | struct omapfb_info *ofbi = FB2OFB(fbi); |
b39a982d TV |
1007 | int r; |
1008 | ||
1009 | DBG("check_var(%d)\n", FB2OFB(fbi)->id); | |
1010 | ||
430571d5 VS |
1011 | omapfb_get_mem_region(ofbi->region); |
1012 | ||
b39a982d TV |
1013 | r = check_fb_var(fbi, var); |
1014 | ||
430571d5 VS |
1015 | omapfb_put_mem_region(ofbi->region); |
1016 | ||
b39a982d TV |
1017 | return r; |
1018 | } | |
1019 | ||
1020 | /* set the video mode according to info->var */ | |
1021 | static int omapfb_set_par(struct fb_info *fbi) | |
1022 | { | |
430571d5 | 1023 | struct omapfb_info *ofbi = FB2OFB(fbi); |
b39a982d TV |
1024 | int r; |
1025 | ||
1026 | DBG("set_par(%d)\n", FB2OFB(fbi)->id); | |
1027 | ||
430571d5 VS |
1028 | omapfb_get_mem_region(ofbi->region); |
1029 | ||
b39a982d TV |
1030 | set_fb_fix(fbi); |
1031 | ||
1032 | r = setup_vrfb_rotation(fbi); | |
1033 | if (r) | |
430571d5 | 1034 | goto out; |
b39a982d TV |
1035 | |
1036 | r = omapfb_apply_changes(fbi, 0); | |
1037 | ||
430571d5 VS |
1038 | out: |
1039 | omapfb_put_mem_region(ofbi->region); | |
1040 | ||
b39a982d TV |
1041 | return r; |
1042 | } | |
1043 | ||
1044 | static int omapfb_pan_display(struct fb_var_screeninfo *var, | |
1045 | struct fb_info *fbi) | |
1046 | { | |
430571d5 | 1047 | struct omapfb_info *ofbi = FB2OFB(fbi); |
b39a982d TV |
1048 | struct fb_var_screeninfo new_var; |
1049 | int r; | |
1050 | ||
1051 | DBG("pan_display(%d)\n", FB2OFB(fbi)->id); | |
1052 | ||
1053 | if (var->xoffset == fbi->var.xoffset && | |
1054 | var->yoffset == fbi->var.yoffset) | |
1055 | return 0; | |
1056 | ||
1057 | new_var = fbi->var; | |
1058 | new_var.xoffset = var->xoffset; | |
1059 | new_var.yoffset = var->yoffset; | |
1060 | ||
1061 | fbi->var = new_var; | |
1062 | ||
430571d5 VS |
1063 | omapfb_get_mem_region(ofbi->region); |
1064 | ||
b39a982d TV |
1065 | r = omapfb_apply_changes(fbi, 0); |
1066 | ||
430571d5 VS |
1067 | omapfb_put_mem_region(ofbi->region); |
1068 | ||
b39a982d TV |
1069 | return r; |
1070 | } | |
1071 | ||
1072 | static void mmap_user_open(struct vm_area_struct *vma) | |
1073 | { | |
078ff546 | 1074 | struct omapfb2_mem_region *rg = vma->vm_private_data; |
b39a982d | 1075 | |
430571d5 | 1076 | omapfb_get_mem_region(rg); |
078ff546 | 1077 | atomic_inc(&rg->map_count); |
430571d5 | 1078 | omapfb_put_mem_region(rg); |
b39a982d TV |
1079 | } |
1080 | ||
1081 | static void mmap_user_close(struct vm_area_struct *vma) | |
1082 | { | |
078ff546 | 1083 | struct omapfb2_mem_region *rg = vma->vm_private_data; |
b39a982d | 1084 | |
430571d5 | 1085 | omapfb_get_mem_region(rg); |
078ff546 | 1086 | atomic_dec(&rg->map_count); |
430571d5 | 1087 | omapfb_put_mem_region(rg); |
b39a982d TV |
1088 | } |
1089 | ||
1090 | static struct vm_operations_struct mmap_user_ops = { | |
1091 | .open = mmap_user_open, | |
1092 | .close = mmap_user_close, | |
1093 | }; | |
1094 | ||
1095 | static int omapfb_mmap(struct fb_info *fbi, struct vm_area_struct *vma) | |
1096 | { | |
1097 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
1098 | struct fb_fix_screeninfo *fix = &fbi->fix; | |
078ff546 | 1099 | struct omapfb2_mem_region *rg; |
b39a982d TV |
1100 | unsigned long off; |
1101 | unsigned long start; | |
1102 | u32 len; | |
430571d5 | 1103 | int r = -EINVAL; |
b39a982d TV |
1104 | |
1105 | if (vma->vm_end - vma->vm_start == 0) | |
1106 | return 0; | |
1107 | if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) | |
1108 | return -EINVAL; | |
1109 | off = vma->vm_pgoff << PAGE_SHIFT; | |
1110 | ||
430571d5 | 1111 | rg = omapfb_get_mem_region(ofbi->region); |
078ff546 | 1112 | |
b39a982d TV |
1113 | start = omapfb_get_region_paddr(ofbi); |
1114 | len = fix->smem_len; | |
1115 | if (off >= len) | |
430571d5 | 1116 | goto error; |
b39a982d | 1117 | if ((vma->vm_end - vma->vm_start + off) > len) |
430571d5 | 1118 | goto error; |
b39a982d TV |
1119 | |
1120 | off += start; | |
1121 | ||
1122 | DBG("user mmap region start %lx, len %d, off %lx\n", start, len, off); | |
1123 | ||
1124 | vma->vm_pgoff = off >> PAGE_SHIFT; | |
1125 | vma->vm_flags |= VM_IO | VM_RESERVED; | |
1126 | vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); | |
1127 | vma->vm_ops = &mmap_user_ops; | |
078ff546 | 1128 | vma->vm_private_data = rg; |
b39a982d | 1129 | if (io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT, |
430571d5 VS |
1130 | vma->vm_end - vma->vm_start, |
1131 | vma->vm_page_prot)) { | |
1132 | r = -EAGAIN; | |
1133 | goto error; | |
1134 | } | |
1135 | ||
b39a982d | 1136 | /* vm_ops.open won't be called for mmap itself. */ |
078ff546 | 1137 | atomic_inc(&rg->map_count); |
430571d5 VS |
1138 | |
1139 | omapfb_put_mem_region(rg); | |
1140 | ||
b39a982d | 1141 | return 0; |
430571d5 VS |
1142 | |
1143 | error: | |
1144 | omapfb_put_mem_region(ofbi->region); | |
1145 | ||
1146 | return r; | |
b39a982d TV |
1147 | } |
1148 | ||
1149 | /* Store a single color palette entry into a pseudo palette or the hardware | |
1150 | * palette if one is available. For now we support only 16bpp and thus store | |
1151 | * the entry only to the pseudo palette. | |
1152 | */ | |
1153 | static int _setcolreg(struct fb_info *fbi, u_int regno, u_int red, u_int green, | |
1154 | u_int blue, u_int transp, int update_hw_pal) | |
1155 | { | |
1156 | /*struct omapfb_info *ofbi = FB2OFB(fbi);*/ | |
1157 | /*struct omapfb2_device *fbdev = ofbi->fbdev;*/ | |
1158 | struct fb_var_screeninfo *var = &fbi->var; | |
1159 | int r = 0; | |
1160 | ||
1161 | enum omapfb_color_format mode = OMAPFB_COLOR_RGB24U; /* XXX */ | |
1162 | ||
1163 | /*switch (plane->color_mode) {*/ | |
1164 | switch (mode) { | |
1165 | case OMAPFB_COLOR_YUV422: | |
1166 | case OMAPFB_COLOR_YUV420: | |
1167 | case OMAPFB_COLOR_YUY422: | |
1168 | r = -EINVAL; | |
1169 | break; | |
1170 | case OMAPFB_COLOR_CLUT_8BPP: | |
1171 | case OMAPFB_COLOR_CLUT_4BPP: | |
1172 | case OMAPFB_COLOR_CLUT_2BPP: | |
1173 | case OMAPFB_COLOR_CLUT_1BPP: | |
1174 | /* | |
1175 | if (fbdev->ctrl->setcolreg) | |
1176 | r = fbdev->ctrl->setcolreg(regno, red, green, blue, | |
1177 | transp, update_hw_pal); | |
1178 | */ | |
1179 | /* Fallthrough */ | |
1180 | r = -EINVAL; | |
1181 | break; | |
1182 | case OMAPFB_COLOR_RGB565: | |
1183 | case OMAPFB_COLOR_RGB444: | |
1184 | case OMAPFB_COLOR_RGB24P: | |
1185 | case OMAPFB_COLOR_RGB24U: | |
1186 | if (r != 0) | |
1187 | break; | |
1188 | ||
b39a982d TV |
1189 | if (regno < 16) { |
1190 | u16 pal; | |
1191 | pal = ((red >> (16 - var->red.length)) << | |
1192 | var->red.offset) | | |
1193 | ((green >> (16 - var->green.length)) << | |
1194 | var->green.offset) | | |
1195 | (blue >> (16 - var->blue.length)); | |
1196 | ((u32 *)(fbi->pseudo_palette))[regno] = pal; | |
1197 | } | |
1198 | break; | |
1199 | default: | |
1200 | BUG(); | |
1201 | } | |
1202 | return r; | |
1203 | } | |
1204 | ||
1205 | static int omapfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, | |
1206 | u_int transp, struct fb_info *info) | |
1207 | { | |
1208 | DBG("setcolreg\n"); | |
1209 | ||
1210 | return _setcolreg(info, regno, red, green, blue, transp, 1); | |
1211 | } | |
1212 | ||
1213 | static int omapfb_setcmap(struct fb_cmap *cmap, struct fb_info *info) | |
1214 | { | |
1215 | int count, index, r; | |
1216 | u16 *red, *green, *blue, *transp; | |
1217 | u16 trans = 0xffff; | |
1218 | ||
1219 | DBG("setcmap\n"); | |
1220 | ||
1221 | red = cmap->red; | |
1222 | green = cmap->green; | |
1223 | blue = cmap->blue; | |
1224 | transp = cmap->transp; | |
1225 | index = cmap->start; | |
1226 | ||
1227 | for (count = 0; count < cmap->len; count++) { | |
1228 | if (transp) | |
1229 | trans = *transp++; | |
1230 | r = _setcolreg(info, index++, *red++, *green++, *blue++, trans, | |
1231 | count == cmap->len - 1); | |
1232 | if (r != 0) | |
1233 | return r; | |
1234 | } | |
1235 | ||
1236 | return 0; | |
1237 | } | |
1238 | ||
1239 | static int omapfb_blank(int blank, struct fb_info *fbi) | |
1240 | { | |
1241 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
1242 | struct omapfb2_device *fbdev = ofbi->fbdev; | |
1243 | struct omap_dss_device *display = fb2display(fbi); | |
27cc213e | 1244 | struct omapfb_display_data *d; |
b39a982d TV |
1245 | int r = 0; |
1246 | ||
93255887 JN |
1247 | if (!display) |
1248 | return -EINVAL; | |
1249 | ||
b39a982d TV |
1250 | omapfb_lock(fbdev); |
1251 | ||
27cc213e TV |
1252 | d = get_display_data(fbdev, display); |
1253 | ||
b39a982d TV |
1254 | switch (blank) { |
1255 | case FB_BLANK_UNBLANK: | |
1256 | if (display->state != OMAP_DSS_DISPLAY_SUSPENDED) | |
1257 | goto exit; | |
1258 | ||
37ac60e4 TV |
1259 | if (display->driver->resume) |
1260 | r = display->driver->resume(display); | |
b39a982d | 1261 | |
27cc213e TV |
1262 | if ((display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) && |
1263 | d->update_mode == OMAPFB_AUTO_UPDATE && | |
1264 | !d->auto_update_work_enabled) | |
1265 | omapfb_start_auto_update(fbdev, display); | |
1266 | ||
b39a982d TV |
1267 | break; |
1268 | ||
1269 | case FB_BLANK_NORMAL: | |
1270 | /* FB_BLANK_NORMAL could be implemented. | |
1271 | * Needs DSS additions. */ | |
1272 | case FB_BLANK_VSYNC_SUSPEND: | |
1273 | case FB_BLANK_HSYNC_SUSPEND: | |
1274 | case FB_BLANK_POWERDOWN: | |
1275 | if (display->state != OMAP_DSS_DISPLAY_ACTIVE) | |
1276 | goto exit; | |
1277 | ||
27cc213e TV |
1278 | if (d->auto_update_work_enabled) |
1279 | omapfb_stop_auto_update(fbdev, display); | |
1280 | ||
37ac60e4 TV |
1281 | if (display->driver->suspend) |
1282 | r = display->driver->suspend(display); | |
b39a982d TV |
1283 | |
1284 | break; | |
1285 | ||
1286 | default: | |
1287 | r = -EINVAL; | |
1288 | } | |
1289 | ||
1290 | exit: | |
1291 | omapfb_unlock(fbdev); | |
1292 | ||
b39a982d TV |
1293 | return r; |
1294 | } | |
1295 | ||
1296 | #if 0 | |
1297 | /* XXX fb_read and fb_write are needed for VRFB */ | |
1298 | ssize_t omapfb_write(struct fb_info *info, const char __user *buf, | |
1299 | size_t count, loff_t *ppos) | |
1300 | { | |
1301 | DBG("omapfb_write %d, %lu\n", count, (unsigned long)*ppos); | |
1302 | /* XXX needed for VRFB */ | |
1303 | return count; | |
1304 | } | |
1305 | #endif | |
1306 | ||
1307 | static struct fb_ops omapfb_ops = { | |
1308 | .owner = THIS_MODULE, | |
1309 | .fb_open = omapfb_open, | |
1310 | .fb_release = omapfb_release, | |
1311 | .fb_fillrect = cfb_fillrect, | |
1312 | .fb_copyarea = cfb_copyarea, | |
1313 | .fb_imageblit = cfb_imageblit, | |
1314 | .fb_blank = omapfb_blank, | |
1315 | .fb_ioctl = omapfb_ioctl, | |
1316 | .fb_check_var = omapfb_check_var, | |
1317 | .fb_set_par = omapfb_set_par, | |
1318 | .fb_pan_display = omapfb_pan_display, | |
1319 | .fb_mmap = omapfb_mmap, | |
1320 | .fb_setcolreg = omapfb_setcolreg, | |
1321 | .fb_setcmap = omapfb_setcmap, | |
1322 | /*.fb_write = omapfb_write,*/ | |
1323 | }; | |
1324 | ||
1325 | static void omapfb_free_fbmem(struct fb_info *fbi) | |
1326 | { | |
1327 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
1328 | struct omapfb2_device *fbdev = ofbi->fbdev; | |
1329 | struct omapfb2_mem_region *rg; | |
1330 | ||
078ff546 VS |
1331 | rg = ofbi->region; |
1332 | ||
1333 | WARN_ON(atomic_read(&rg->map_count)); | |
b39a982d TV |
1334 | |
1335 | if (rg->paddr) | |
1336 | if (omap_vram_free(rg->paddr, rg->size)) | |
1337 | dev_err(fbdev->dev, "VRAM FREE failed\n"); | |
1338 | ||
1339 | if (rg->vaddr) | |
1340 | iounmap(rg->vaddr); | |
1341 | ||
1342 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { | |
1343 | /* unmap the 0 angle rotation */ | |
1344 | if (rg->vrfb.vaddr[0]) { | |
1345 | iounmap(rg->vrfb.vaddr[0]); | |
1346 | omap_vrfb_release_ctx(&rg->vrfb); | |
f3a82d11 | 1347 | rg->vrfb.vaddr[0] = NULL; |
b39a982d TV |
1348 | } |
1349 | } | |
1350 | ||
1351 | rg->vaddr = NULL; | |
1352 | rg->paddr = 0; | |
1353 | rg->alloc = 0; | |
1354 | rg->size = 0; | |
1355 | } | |
1356 | ||
1357 | static void clear_fb_info(struct fb_info *fbi) | |
1358 | { | |
1359 | memset(&fbi->var, 0, sizeof(fbi->var)); | |
1360 | memset(&fbi->fix, 0, sizeof(fbi->fix)); | |
1361 | strlcpy(fbi->fix.id, MODULE_NAME, sizeof(fbi->fix.id)); | |
1362 | } | |
1363 | ||
1364 | static int omapfb_free_all_fbmem(struct omapfb2_device *fbdev) | |
1365 | { | |
1366 | int i; | |
1367 | ||
1368 | DBG("free all fbmem\n"); | |
1369 | ||
1370 | for (i = 0; i < fbdev->num_fbs; i++) { | |
1371 | struct fb_info *fbi = fbdev->fbs[i]; | |
1372 | omapfb_free_fbmem(fbi); | |
1373 | clear_fb_info(fbi); | |
1374 | } | |
1375 | ||
1376 | return 0; | |
1377 | } | |
1378 | ||
1379 | static int omapfb_alloc_fbmem(struct fb_info *fbi, unsigned long size, | |
1380 | unsigned long paddr) | |
1381 | { | |
1382 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
1383 | struct omapfb2_device *fbdev = ofbi->fbdev; | |
1384 | struct omapfb2_mem_region *rg; | |
1385 | void __iomem *vaddr; | |
1386 | int r; | |
1387 | ||
078ff546 VS |
1388 | rg = ofbi->region; |
1389 | ||
1390 | rg->paddr = 0; | |
1391 | rg->vaddr = NULL; | |
1392 | memset(&rg->vrfb, 0, sizeof rg->vrfb); | |
1393 | rg->size = 0; | |
1394 | rg->type = 0; | |
1395 | rg->alloc = false; | |
1396 | rg->map = false; | |
b39a982d TV |
1397 | |
1398 | size = PAGE_ALIGN(size); | |
1399 | ||
1400 | if (!paddr) { | |
1401 | DBG("allocating %lu bytes for fb %d\n", size, ofbi->id); | |
1402 | r = omap_vram_alloc(OMAP_VRAM_MEMTYPE_SDRAM, size, &paddr); | |
1403 | } else { | |
1404 | DBG("reserving %lu bytes at %lx for fb %d\n", size, paddr, | |
1405 | ofbi->id); | |
1406 | r = omap_vram_reserve(paddr, size); | |
1407 | } | |
1408 | ||
1409 | if (r) { | |
1410 | dev_err(fbdev->dev, "failed to allocate framebuffer\n"); | |
1411 | return -ENOMEM; | |
1412 | } | |
1413 | ||
1414 | if (ofbi->rotation_type != OMAP_DSS_ROT_VRFB) { | |
1415 | vaddr = ioremap_wc(paddr, size); | |
1416 | ||
1417 | if (!vaddr) { | |
1418 | dev_err(fbdev->dev, "failed to ioremap framebuffer\n"); | |
1419 | omap_vram_free(paddr, size); | |
1420 | return -ENOMEM; | |
1421 | } | |
1422 | ||
1423 | DBG("allocated VRAM paddr %lx, vaddr %p\n", paddr, vaddr); | |
1424 | } else { | |
1425 | r = omap_vrfb_request_ctx(&rg->vrfb); | |
1426 | if (r) { | |
1427 | dev_err(fbdev->dev, "vrfb create ctx failed\n"); | |
1428 | return r; | |
1429 | } | |
1430 | ||
1431 | vaddr = NULL; | |
1432 | } | |
1433 | ||
1434 | rg->paddr = paddr; | |
1435 | rg->vaddr = vaddr; | |
1436 | rg->size = size; | |
1437 | rg->alloc = 1; | |
1438 | ||
1439 | return 0; | |
1440 | } | |
1441 | ||
1442 | /* allocate fbmem using display resolution as reference */ | |
1443 | static int omapfb_alloc_fbmem_display(struct fb_info *fbi, unsigned long size, | |
1444 | unsigned long paddr) | |
1445 | { | |
1446 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
a2699504 | 1447 | struct omapfb2_device *fbdev = ofbi->fbdev; |
b39a982d TV |
1448 | struct omap_dss_device *display; |
1449 | int bytespp; | |
1450 | ||
1451 | display = fb2display(fbi); | |
1452 | ||
1453 | if (!display) | |
1454 | return 0; | |
1455 | ||
a2699504 | 1456 | switch (omapfb_get_recommended_bpp(fbdev, display)) { |
b39a982d TV |
1457 | case 16: |
1458 | bytespp = 2; | |
1459 | break; | |
1460 | case 24: | |
1461 | bytespp = 4; | |
1462 | break; | |
1463 | default: | |
1464 | bytespp = 4; | |
1465 | break; | |
1466 | } | |
1467 | ||
1468 | if (!size) { | |
1469 | u16 w, h; | |
1470 | ||
96adcece | 1471 | display->driver->get_resolution(display, &w, &h); |
b39a982d TV |
1472 | |
1473 | if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { | |
1474 | size = max(omap_vrfb_min_phys_size(w, h, bytespp), | |
1475 | omap_vrfb_min_phys_size(h, w, bytespp)); | |
1476 | ||
1477 | DBG("adjusting fb mem size for VRFB, %u -> %lu\n", | |
1478 | w * h * bytespp, size); | |
1479 | } else { | |
1480 | size = w * h * bytespp; | |
1481 | } | |
1482 | } | |
1483 | ||
1484 | if (!size) | |
1485 | return 0; | |
1486 | ||
1487 | return omapfb_alloc_fbmem(fbi, size, paddr); | |
1488 | } | |
1489 | ||
1490 | static enum omap_color_mode fb_format_to_dss_mode(enum omapfb_color_format fmt) | |
1491 | { | |
1492 | enum omap_color_mode mode; | |
1493 | ||
1494 | switch (fmt) { | |
1495 | case OMAPFB_COLOR_RGB565: | |
1496 | mode = OMAP_DSS_COLOR_RGB16; | |
1497 | break; | |
1498 | case OMAPFB_COLOR_YUV422: | |
1499 | mode = OMAP_DSS_COLOR_YUV2; | |
1500 | break; | |
1501 | case OMAPFB_COLOR_CLUT_8BPP: | |
1502 | mode = OMAP_DSS_COLOR_CLUT8; | |
1503 | break; | |
1504 | case OMAPFB_COLOR_CLUT_4BPP: | |
1505 | mode = OMAP_DSS_COLOR_CLUT4; | |
1506 | break; | |
1507 | case OMAPFB_COLOR_CLUT_2BPP: | |
1508 | mode = OMAP_DSS_COLOR_CLUT2; | |
1509 | break; | |
1510 | case OMAPFB_COLOR_CLUT_1BPP: | |
1511 | mode = OMAP_DSS_COLOR_CLUT1; | |
1512 | break; | |
1513 | case OMAPFB_COLOR_RGB444: | |
1514 | mode = OMAP_DSS_COLOR_RGB12U; | |
1515 | break; | |
1516 | case OMAPFB_COLOR_YUY422: | |
1517 | mode = OMAP_DSS_COLOR_UYVY; | |
1518 | break; | |
1519 | case OMAPFB_COLOR_ARGB16: | |
1520 | mode = OMAP_DSS_COLOR_ARGB16; | |
1521 | break; | |
1522 | case OMAPFB_COLOR_RGB24U: | |
1523 | mode = OMAP_DSS_COLOR_RGB24U; | |
1524 | break; | |
1525 | case OMAPFB_COLOR_RGB24P: | |
1526 | mode = OMAP_DSS_COLOR_RGB24P; | |
1527 | break; | |
1528 | case OMAPFB_COLOR_ARGB32: | |
1529 | mode = OMAP_DSS_COLOR_ARGB32; | |
1530 | break; | |
1531 | case OMAPFB_COLOR_RGBA32: | |
1532 | mode = OMAP_DSS_COLOR_RGBA32; | |
1533 | break; | |
1534 | case OMAPFB_COLOR_RGBX32: | |
1535 | mode = OMAP_DSS_COLOR_RGBX32; | |
1536 | break; | |
1537 | default: | |
1538 | mode = -EINVAL; | |
1539 | } | |
1540 | ||
1541 | return mode; | |
1542 | } | |
1543 | ||
1544 | static int omapfb_parse_vram_param(const char *param, int max_entries, | |
1545 | unsigned long *sizes, unsigned long *paddrs) | |
1546 | { | |
1547 | int fbnum; | |
1548 | unsigned long size; | |
1549 | unsigned long paddr = 0; | |
1550 | char *p, *start; | |
1551 | ||
1552 | start = (char *)param; | |
1553 | ||
1554 | while (1) { | |
1555 | p = start; | |
1556 | ||
1557 | fbnum = simple_strtoul(p, &p, 10); | |
1558 | ||
1559 | if (p == param) | |
1560 | return -EINVAL; | |
1561 | ||
1562 | if (*p != ':') | |
1563 | return -EINVAL; | |
1564 | ||
1565 | if (fbnum >= max_entries) | |
1566 | return -EINVAL; | |
1567 | ||
1568 | size = memparse(p + 1, &p); | |
1569 | ||
1570 | if (!size) | |
1571 | return -EINVAL; | |
1572 | ||
1573 | paddr = 0; | |
1574 | ||
1575 | if (*p == '@') { | |
1576 | paddr = simple_strtoul(p + 1, &p, 16); | |
1577 | ||
1578 | if (!paddr) | |
1579 | return -EINVAL; | |
1580 | ||
1581 | } | |
1582 | ||
1583 | paddrs[fbnum] = paddr; | |
1584 | sizes[fbnum] = size; | |
1585 | ||
1586 | if (*p == 0) | |
1587 | break; | |
1588 | ||
1589 | if (*p != ',') | |
1590 | return -EINVAL; | |
1591 | ||
1592 | ++p; | |
1593 | ||
1594 | start = p; | |
1595 | } | |
1596 | ||
1597 | return 0; | |
1598 | } | |
1599 | ||
1600 | static int omapfb_allocate_all_fbs(struct omapfb2_device *fbdev) | |
1601 | { | |
1602 | int i, r; | |
1603 | unsigned long vram_sizes[10]; | |
1604 | unsigned long vram_paddrs[10]; | |
1605 | ||
1606 | memset(&vram_sizes, 0, sizeof(vram_sizes)); | |
1607 | memset(&vram_paddrs, 0, sizeof(vram_paddrs)); | |
1608 | ||
1609 | if (def_vram && omapfb_parse_vram_param(def_vram, 10, | |
1610 | vram_sizes, vram_paddrs)) { | |
1611 | dev_err(fbdev->dev, "failed to parse vram parameter\n"); | |
1612 | ||
1613 | memset(&vram_sizes, 0, sizeof(vram_sizes)); | |
1614 | memset(&vram_paddrs, 0, sizeof(vram_paddrs)); | |
1615 | } | |
1616 | ||
1617 | if (fbdev->dev->platform_data) { | |
1618 | struct omapfb_platform_data *opd; | |
1619 | opd = fbdev->dev->platform_data; | |
1620 | for (i = 0; i < opd->mem_desc.region_cnt; ++i) { | |
1621 | if (!vram_sizes[i]) { | |
1622 | unsigned long size; | |
1623 | unsigned long paddr; | |
1624 | ||
1625 | size = opd->mem_desc.region[i].size; | |
1626 | paddr = opd->mem_desc.region[i].paddr; | |
1627 | ||
1628 | vram_sizes[i] = size; | |
1629 | vram_paddrs[i] = paddr; | |
1630 | } | |
1631 | } | |
1632 | } | |
1633 | ||
1634 | for (i = 0; i < fbdev->num_fbs; i++) { | |
1635 | /* allocate memory automatically only for fb0, or if | |
1636 | * excplicitly defined with vram or plat data option */ | |
1637 | if (i == 0 || vram_sizes[i] != 0) { | |
1638 | r = omapfb_alloc_fbmem_display(fbdev->fbs[i], | |
1639 | vram_sizes[i], vram_paddrs[i]); | |
1640 | ||
1641 | if (r) | |
1642 | return r; | |
1643 | } | |
1644 | } | |
1645 | ||
1646 | for (i = 0; i < fbdev->num_fbs; i++) { | |
1647 | struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]); | |
1648 | struct omapfb2_mem_region *rg; | |
078ff546 | 1649 | rg = ofbi->region; |
b39a982d TV |
1650 | |
1651 | DBG("region%d phys %08x virt %p size=%lu\n", | |
1652 | i, | |
1653 | rg->paddr, | |
1654 | rg->vaddr, | |
1655 | rg->size); | |
1656 | } | |
1657 | ||
1658 | return 0; | |
1659 | } | |
1660 | ||
1661 | int omapfb_realloc_fbmem(struct fb_info *fbi, unsigned long size, int type) | |
1662 | { | |
1663 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
1664 | struct omapfb2_device *fbdev = ofbi->fbdev; | |
1665 | struct omap_dss_device *display = fb2display(fbi); | |
078ff546 | 1666 | struct omapfb2_mem_region *rg = ofbi->region; |
b39a982d TV |
1667 | unsigned long old_size = rg->size; |
1668 | unsigned long old_paddr = rg->paddr; | |
1669 | int old_type = rg->type; | |
1670 | int r; | |
1671 | ||
1672 | if (type > OMAPFB_MEMTYPE_MAX) | |
1673 | return -EINVAL; | |
1674 | ||
1675 | size = PAGE_ALIGN(size); | |
1676 | ||
1677 | if (old_size == size && old_type == type) | |
1678 | return 0; | |
1679 | ||
18946f62 TV |
1680 | if (display && display->driver->sync) |
1681 | display->driver->sync(display); | |
b39a982d TV |
1682 | |
1683 | omapfb_free_fbmem(fbi); | |
1684 | ||
1685 | if (size == 0) { | |
1686 | clear_fb_info(fbi); | |
1687 | return 0; | |
1688 | } | |
1689 | ||
1690 | r = omapfb_alloc_fbmem(fbi, size, 0); | |
1691 | ||
1692 | if (r) { | |
1693 | if (old_size) | |
1694 | omapfb_alloc_fbmem(fbi, old_size, old_paddr); | |
1695 | ||
1696 | if (rg->size == 0) | |
1697 | clear_fb_info(fbi); | |
1698 | ||
1699 | return r; | |
1700 | } | |
1701 | ||
1702 | if (old_size == size) | |
1703 | return 0; | |
1704 | ||
1705 | if (old_size == 0) { | |
1706 | DBG("initializing fb %d\n", ofbi->id); | |
1707 | r = omapfb_fb_init(fbdev, fbi); | |
1708 | if (r) { | |
1709 | DBG("omapfb_fb_init failed\n"); | |
1710 | goto err; | |
1711 | } | |
1712 | r = omapfb_apply_changes(fbi, 1); | |
1713 | if (r) { | |
1714 | DBG("omapfb_apply_changes failed\n"); | |
1715 | goto err; | |
1716 | } | |
1717 | } else { | |
1718 | struct fb_var_screeninfo new_var; | |
1719 | memcpy(&new_var, &fbi->var, sizeof(new_var)); | |
1720 | r = check_fb_var(fbi, &new_var); | |
1721 | if (r) | |
1722 | goto err; | |
1723 | memcpy(&fbi->var, &new_var, sizeof(fbi->var)); | |
1724 | set_fb_fix(fbi); | |
1725 | r = setup_vrfb_rotation(fbi); | |
1726 | if (r) | |
1727 | goto err; | |
1728 | } | |
1729 | ||
1730 | return 0; | |
1731 | err: | |
1732 | omapfb_free_fbmem(fbi); | |
1733 | clear_fb_info(fbi); | |
1734 | return r; | |
1735 | } | |
1736 | ||
27cc213e TV |
1737 | static void omapfb_auto_update_work(struct work_struct *work) |
1738 | { | |
1739 | struct omap_dss_device *dssdev; | |
1740 | struct omap_dss_driver *dssdrv; | |
1741 | struct omapfb_display_data *d; | |
1742 | u16 w, h; | |
1743 | unsigned int freq; | |
1744 | struct omapfb2_device *fbdev; | |
1745 | ||
1746 | d = container_of(work, struct omapfb_display_data, | |
1747 | auto_update_work.work); | |
1748 | ||
1749 | dssdev = d->dssdev; | |
1750 | dssdrv = dssdev->driver; | |
1751 | fbdev = d->fbdev; | |
1752 | ||
1753 | if (!dssdrv || !dssdrv->update) | |
1754 | return; | |
1755 | ||
1756 | if (dssdrv->sync) | |
1757 | dssdrv->sync(dssdev); | |
1758 | ||
1759 | dssdrv->get_resolution(dssdev, &w, &h); | |
1760 | dssdrv->update(dssdev, 0, 0, w, h); | |
1761 | ||
1762 | freq = auto_update_freq; | |
1763 | if (freq == 0) | |
1764 | freq = 20; | |
1765 | queue_delayed_work(fbdev->auto_update_wq, | |
1766 | &d->auto_update_work, HZ / freq); | |
1767 | } | |
1768 | ||
1769 | void omapfb_start_auto_update(struct omapfb2_device *fbdev, | |
1770 | struct omap_dss_device *display) | |
1771 | { | |
1772 | struct omapfb_display_data *d; | |
1773 | ||
1774 | if (fbdev->auto_update_wq == NULL) { | |
1775 | struct workqueue_struct *wq; | |
1776 | ||
1777 | wq = create_singlethread_workqueue("omapfb_auto_update"); | |
1778 | ||
1779 | if (wq == NULL) { | |
1780 | dev_err(fbdev->dev, "Failed to create workqueue for " | |
1781 | "auto-update\n"); | |
1782 | return; | |
1783 | } | |
1784 | ||
1785 | fbdev->auto_update_wq = wq; | |
1786 | } | |
1787 | ||
1788 | d = get_display_data(fbdev, display); | |
1789 | ||
1790 | INIT_DELAYED_WORK(&d->auto_update_work, omapfb_auto_update_work); | |
1791 | ||
1792 | d->auto_update_work_enabled = true; | |
1793 | ||
1794 | omapfb_auto_update_work(&d->auto_update_work.work); | |
1795 | } | |
1796 | ||
1797 | void omapfb_stop_auto_update(struct omapfb2_device *fbdev, | |
1798 | struct omap_dss_device *display) | |
1799 | { | |
1800 | struct omapfb_display_data *d; | |
1801 | ||
1802 | d = get_display_data(fbdev, display); | |
1803 | ||
1804 | cancel_delayed_work_sync(&d->auto_update_work); | |
1805 | ||
1806 | d->auto_update_work_enabled = false; | |
1807 | } | |
1808 | ||
b39a982d TV |
1809 | /* initialize fb_info, var, fix to something sane based on the display */ |
1810 | static int omapfb_fb_init(struct omapfb2_device *fbdev, struct fb_info *fbi) | |
1811 | { | |
1812 | struct fb_var_screeninfo *var = &fbi->var; | |
1813 | struct omap_dss_device *display = fb2display(fbi); | |
1814 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
1815 | int r = 0; | |
1816 | ||
1817 | fbi->fbops = &omapfb_ops; | |
1818 | fbi->flags = FBINFO_FLAG_DEFAULT; | |
1819 | fbi->pseudo_palette = fbdev->pseudo_palette; | |
1820 | ||
078ff546 | 1821 | if (ofbi->region->size == 0) { |
b39a982d TV |
1822 | clear_fb_info(fbi); |
1823 | return 0; | |
1824 | } | |
1825 | ||
1826 | var->nonstd = 0; | |
1827 | var->bits_per_pixel = 0; | |
1828 | ||
1829 | var->rotate = def_rotate; | |
1830 | ||
1831 | /* | |
1832 | * Check if there is a default color format set in the board file, | |
1833 | * and use this format instead the default deducted from the | |
1834 | * display bpp. | |
1835 | */ | |
1836 | if (fbdev->dev->platform_data) { | |
1837 | struct omapfb_platform_data *opd; | |
1838 | int id = ofbi->id; | |
1839 | ||
1840 | opd = fbdev->dev->platform_data; | |
1841 | if (opd->mem_desc.region[id].format_used) { | |
1842 | enum omap_color_mode mode; | |
1843 | enum omapfb_color_format format; | |
1844 | ||
1845 | format = opd->mem_desc.region[id].format; | |
1846 | mode = fb_format_to_dss_mode(format); | |
1847 | if (mode < 0) { | |
1848 | r = mode; | |
1849 | goto err; | |
1850 | } | |
1851 | r = dss_mode_to_fb_mode(mode, var); | |
1852 | if (r < 0) | |
1853 | goto err; | |
1854 | } | |
1855 | } | |
1856 | ||
1857 | if (display) { | |
1858 | u16 w, h; | |
1859 | int rotation = (var->rotate + ofbi->rotation[0]) % 4; | |
1860 | ||
96adcece | 1861 | display->driver->get_resolution(display, &w, &h); |
b39a982d TV |
1862 | |
1863 | if (rotation == FB_ROTATE_CW || | |
1864 | rotation == FB_ROTATE_CCW) { | |
1865 | var->xres = h; | |
1866 | var->yres = w; | |
1867 | } else { | |
1868 | var->xres = w; | |
1869 | var->yres = h; | |
1870 | } | |
1871 | ||
1872 | var->xres_virtual = var->xres; | |
1873 | var->yres_virtual = var->yres; | |
1874 | ||
1875 | if (!var->bits_per_pixel) { | |
a2699504 | 1876 | switch (omapfb_get_recommended_bpp(fbdev, display)) { |
b39a982d TV |
1877 | case 16: |
1878 | var->bits_per_pixel = 16; | |
1879 | break; | |
1880 | case 24: | |
1881 | var->bits_per_pixel = 32; | |
1882 | break; | |
1883 | default: | |
1884 | dev_err(fbdev->dev, "illegal display " | |
1885 | "bpp\n"); | |
1886 | return -EINVAL; | |
1887 | } | |
1888 | } | |
1889 | } else { | |
1890 | /* if there's no display, let's just guess some basic values */ | |
1891 | var->xres = 320; | |
1892 | var->yres = 240; | |
1893 | var->xres_virtual = var->xres; | |
1894 | var->yres_virtual = var->yres; | |
1895 | if (!var->bits_per_pixel) | |
1896 | var->bits_per_pixel = 16; | |
1897 | } | |
1898 | ||
1899 | r = check_fb_var(fbi, var); | |
1900 | if (r) | |
1901 | goto err; | |
1902 | ||
1903 | set_fb_fix(fbi); | |
1904 | r = setup_vrfb_rotation(fbi); | |
1905 | if (r) | |
1906 | goto err; | |
1907 | ||
1908 | r = fb_alloc_cmap(&fbi->cmap, 256, 0); | |
1909 | if (r) | |
1910 | dev_err(fbdev->dev, "unable to allocate color map memory\n"); | |
1911 | ||
1912 | err: | |
1913 | return r; | |
1914 | } | |
1915 | ||
1916 | static void fbinfo_cleanup(struct omapfb2_device *fbdev, struct fb_info *fbi) | |
1917 | { | |
1918 | fb_dealloc_cmap(&fbi->cmap); | |
1919 | } | |
1920 | ||
1921 | ||
1922 | static void omapfb_free_resources(struct omapfb2_device *fbdev) | |
1923 | { | |
1924 | int i; | |
1925 | ||
1926 | DBG("free_resources\n"); | |
1927 | ||
1928 | if (fbdev == NULL) | |
1929 | return; | |
1930 | ||
1931 | for (i = 0; i < fbdev->num_fbs; i++) | |
1932 | unregister_framebuffer(fbdev->fbs[i]); | |
1933 | ||
1934 | /* free the reserved fbmem */ | |
1935 | omapfb_free_all_fbmem(fbdev); | |
1936 | ||
1937 | for (i = 0; i < fbdev->num_fbs; i++) { | |
1938 | fbinfo_cleanup(fbdev, fbdev->fbs[i]); | |
1939 | framebuffer_release(fbdev->fbs[i]); | |
1940 | } | |
1941 | ||
1942 | for (i = 0; i < fbdev->num_displays; i++) { | |
065a40bd | 1943 | struct omap_dss_device *dssdev = fbdev->displays[i].dssdev; |
27cc213e TV |
1944 | |
1945 | if (fbdev->displays[i].auto_update_work_enabled) | |
1946 | omapfb_stop_auto_update(fbdev, dssdev); | |
1947 | ||
065a40bd TV |
1948 | if (dssdev->state != OMAP_DSS_DISPLAY_DISABLED) |
1949 | dssdev->driver->disable(dssdev); | |
b39a982d | 1950 | |
065a40bd | 1951 | omap_dss_put_device(dssdev); |
b39a982d TV |
1952 | } |
1953 | ||
27cc213e TV |
1954 | if (fbdev->auto_update_wq != NULL) { |
1955 | flush_workqueue(fbdev->auto_update_wq); | |
1956 | destroy_workqueue(fbdev->auto_update_wq); | |
1957 | fbdev->auto_update_wq = NULL; | |
1958 | } | |
1959 | ||
b39a982d TV |
1960 | dev_set_drvdata(fbdev->dev, NULL); |
1961 | kfree(fbdev); | |
1962 | } | |
1963 | ||
1964 | static int omapfb_create_framebuffers(struct omapfb2_device *fbdev) | |
1965 | { | |
1966 | int r, i; | |
1967 | ||
1968 | fbdev->num_fbs = 0; | |
1969 | ||
1970 | DBG("create %d framebuffers\n", CONFIG_FB_OMAP2_NUM_FBS); | |
1971 | ||
1972 | /* allocate fb_infos */ | |
1973 | for (i = 0; i < CONFIG_FB_OMAP2_NUM_FBS; i++) { | |
1974 | struct fb_info *fbi; | |
1975 | struct omapfb_info *ofbi; | |
1976 | ||
1977 | fbi = framebuffer_alloc(sizeof(struct omapfb_info), | |
1978 | fbdev->dev); | |
1979 | ||
1980 | if (fbi == NULL) { | |
1981 | dev_err(fbdev->dev, | |
1982 | "unable to allocate memory for plane info\n"); | |
1983 | return -ENOMEM; | |
1984 | } | |
1985 | ||
1986 | clear_fb_info(fbi); | |
1987 | ||
1988 | fbdev->fbs[i] = fbi; | |
1989 | ||
1990 | ofbi = FB2OFB(fbi); | |
1991 | ofbi->fbdev = fbdev; | |
1992 | ofbi->id = i; | |
1993 | ||
078ff546 VS |
1994 | ofbi->region = &fbdev->regions[i]; |
1995 | ofbi->region->id = i; | |
2f642a17 | 1996 | init_rwsem(&ofbi->region->lock); |
078ff546 | 1997 | |
b39a982d TV |
1998 | /* assign these early, so that fb alloc can use them */ |
1999 | ofbi->rotation_type = def_vrfb ? OMAP_DSS_ROT_VRFB : | |
2000 | OMAP_DSS_ROT_DMA; | |
2001 | ofbi->mirror = def_mirror; | |
2002 | ||
2003 | fbdev->num_fbs++; | |
2004 | } | |
2005 | ||
2006 | DBG("fb_infos allocated\n"); | |
2007 | ||
2008 | /* assign overlays for the fbs */ | |
2009 | for (i = 0; i < min(fbdev->num_fbs, fbdev->num_overlays); i++) { | |
2010 | struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]); | |
2011 | ||
2012 | ofbi->overlays[0] = fbdev->overlays[i]; | |
2013 | ofbi->num_overlays = 1; | |
2014 | } | |
2015 | ||
2016 | /* allocate fb memories */ | |
2017 | r = omapfb_allocate_all_fbs(fbdev); | |
2018 | if (r) { | |
2019 | dev_err(fbdev->dev, "failed to allocate fbmem\n"); | |
2020 | return r; | |
2021 | } | |
2022 | ||
2023 | DBG("fbmems allocated\n"); | |
2024 | ||
2025 | /* setup fb_infos */ | |
2026 | for (i = 0; i < fbdev->num_fbs; i++) { | |
430571d5 VS |
2027 | struct fb_info *fbi = fbdev->fbs[i]; |
2028 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
2029 | ||
2030 | omapfb_get_mem_region(ofbi->region); | |
2031 | r = omapfb_fb_init(fbdev, fbi); | |
2032 | omapfb_put_mem_region(ofbi->region); | |
2033 | ||
b39a982d TV |
2034 | if (r) { |
2035 | dev_err(fbdev->dev, "failed to setup fb_info\n"); | |
2036 | return r; | |
2037 | } | |
2038 | } | |
2039 | ||
2040 | DBG("fb_infos initialized\n"); | |
2041 | ||
2042 | for (i = 0; i < fbdev->num_fbs; i++) { | |
2043 | r = register_framebuffer(fbdev->fbs[i]); | |
2044 | if (r != 0) { | |
2045 | dev_err(fbdev->dev, | |
2046 | "registering framebuffer %d failed\n", i); | |
2047 | return r; | |
2048 | } | |
2049 | } | |
2050 | ||
2051 | DBG("framebuffers registered\n"); | |
2052 | ||
2053 | for (i = 0; i < fbdev->num_fbs; i++) { | |
430571d5 VS |
2054 | struct fb_info *fbi = fbdev->fbs[i]; |
2055 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
2056 | ||
2057 | omapfb_get_mem_region(ofbi->region); | |
2058 | r = omapfb_apply_changes(fbi, 1); | |
2059 | omapfb_put_mem_region(ofbi->region); | |
2060 | ||
b39a982d TV |
2061 | if (r) { |
2062 | dev_err(fbdev->dev, "failed to change mode\n"); | |
2063 | return r; | |
2064 | } | |
2065 | } | |
2066 | ||
b39a982d TV |
2067 | /* Enable fb0 */ |
2068 | if (fbdev->num_fbs > 0) { | |
2069 | struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[0]); | |
2070 | ||
2071 | if (ofbi->num_overlays > 0) { | |
2072 | struct omap_overlay *ovl = ofbi->overlays[0]; | |
2073 | ||
aaa874a9 TV |
2074 | ovl->manager->apply(ovl->manager); |
2075 | ||
b39a982d TV |
2076 | r = omapfb_overlay_enable(ovl, 1); |
2077 | ||
2078 | if (r) { | |
2079 | dev_err(fbdev->dev, | |
2080 | "failed to enable overlay\n"); | |
2081 | return r; | |
2082 | } | |
2083 | } | |
2084 | } | |
2085 | ||
2086 | DBG("create_framebuffers done\n"); | |
2087 | ||
2088 | return 0; | |
2089 | } | |
2090 | ||
2091 | static int omapfb_mode_to_timings(const char *mode_str, | |
2092 | struct omap_video_timings *timings, u8 *bpp) | |
2093 | { | |
897044e9 TV |
2094 | struct fb_info *fbi; |
2095 | struct fb_var_screeninfo *var; | |
2096 | struct fb_ops *fbops; | |
b39a982d TV |
2097 | int r; |
2098 | ||
2099 | #ifdef CONFIG_OMAP2_DSS_VENC | |
2100 | if (strcmp(mode_str, "pal") == 0) { | |
2101 | *timings = omap_dss_pal_timings; | |
e8c66dcf | 2102 | *bpp = 24; |
b39a982d TV |
2103 | return 0; |
2104 | } else if (strcmp(mode_str, "ntsc") == 0) { | |
2105 | *timings = omap_dss_ntsc_timings; | |
e8c66dcf | 2106 | *bpp = 24; |
b39a982d TV |
2107 | return 0; |
2108 | } | |
2109 | #endif | |
2110 | ||
2111 | /* this is quite a hack, but I wanted to use the modedb and for | |
2112 | * that we need fb_info and var, so we create dummy ones */ | |
2113 | ||
897044e9 TV |
2114 | *bpp = 0; |
2115 | fbi = NULL; | |
2116 | var = NULL; | |
2117 | fbops = NULL; | |
b39a982d | 2118 | |
897044e9 TV |
2119 | fbi = kzalloc(sizeof(*fbi), GFP_KERNEL); |
2120 | if (fbi == NULL) { | |
2121 | r = -ENOMEM; | |
2122 | goto err; | |
2123 | } | |
2124 | ||
2125 | var = kzalloc(sizeof(*var), GFP_KERNEL); | |
2126 | if (var == NULL) { | |
2127 | r = -ENOMEM; | |
2128 | goto err; | |
2129 | } | |
2130 | ||
2131 | fbops = kzalloc(sizeof(*fbops), GFP_KERNEL); | |
2132 | if (fbops == NULL) { | |
2133 | r = -ENOMEM; | |
2134 | goto err; | |
2135 | } | |
2136 | ||
2137 | fbi->fbops = fbops; | |
2138 | ||
2139 | r = fb_find_mode(var, fbi, mode_str, NULL, 0, NULL, 24); | |
2140 | if (r == 0) { | |
2141 | r = -EINVAL; | |
2142 | goto err; | |
b39a982d | 2143 | } |
897044e9 TV |
2144 | |
2145 | timings->pixel_clock = PICOS2KHZ(var->pixclock); | |
2146 | timings->hbp = var->left_margin; | |
2147 | timings->hfp = var->right_margin; | |
2148 | timings->vbp = var->upper_margin; | |
2149 | timings->vfp = var->lower_margin; | |
2150 | timings->hsw = var->hsync_len; | |
2151 | timings->vsw = var->vsync_len; | |
2152 | timings->x_res = var->xres; | |
2153 | timings->y_res = var->yres; | |
2154 | ||
2155 | switch (var->bits_per_pixel) { | |
2156 | case 16: | |
2157 | *bpp = 16; | |
2158 | break; | |
2159 | case 24: | |
2160 | case 32: | |
2161 | default: | |
2162 | *bpp = 24; | |
2163 | break; | |
2164 | } | |
2165 | ||
2166 | r = 0; | |
2167 | ||
2168 | err: | |
2169 | kfree(fbi); | |
2170 | kfree(var); | |
2171 | kfree(fbops); | |
2172 | ||
2173 | return r; | |
b39a982d TV |
2174 | } |
2175 | ||
a2699504 TV |
2176 | static int omapfb_set_def_mode(struct omapfb2_device *fbdev, |
2177 | struct omap_dss_device *display, char *mode_str) | |
b39a982d TV |
2178 | { |
2179 | int r; | |
2180 | u8 bpp; | |
371e2081 | 2181 | struct omap_video_timings timings, temp_timings; |
065a40bd | 2182 | struct omapfb_display_data *d; |
b39a982d TV |
2183 | |
2184 | r = omapfb_mode_to_timings(mode_str, &timings, &bpp); | |
2185 | if (r) | |
2186 | return r; | |
2187 | ||
065a40bd TV |
2188 | d = get_display_data(fbdev, display); |
2189 | d->bpp_override = bpp; | |
b39a982d | 2190 | |
371e2081 JM |
2191 | if (display->driver->check_timings) { |
2192 | r = display->driver->check_timings(display, &timings); | |
2193 | if (r) | |
2194 | return r; | |
2195 | } else { | |
2196 | /* If check_timings is not present compare xres and yres */ | |
2197 | if (display->driver->get_timings) { | |
2198 | display->driver->get_timings(display, &temp_timings); | |
b39a982d | 2199 | |
371e2081 JM |
2200 | if (temp_timings.x_res != timings.x_res || |
2201 | temp_timings.y_res != timings.y_res) | |
2202 | return -EINVAL; | |
2203 | } | |
2204 | } | |
b39a982d | 2205 | |
371e2081 JM |
2206 | if (display->driver->set_timings) |
2207 | display->driver->set_timings(display, &timings); | |
b39a982d TV |
2208 | |
2209 | return 0; | |
2210 | } | |
2211 | ||
a2699504 TV |
2212 | static int omapfb_get_recommended_bpp(struct omapfb2_device *fbdev, |
2213 | struct omap_dss_device *dssdev) | |
2214 | { | |
065a40bd | 2215 | struct omapfb_display_data *d; |
a2699504 TV |
2216 | |
2217 | BUG_ON(dssdev->driver->get_recommended_bpp == NULL); | |
2218 | ||
065a40bd TV |
2219 | d = get_display_data(fbdev, dssdev); |
2220 | ||
2221 | if (d->bpp_override != 0) | |
2222 | return d->bpp_override; | |
a2699504 TV |
2223 | |
2224 | return dssdev->driver->get_recommended_bpp(dssdev); | |
2225 | } | |
2226 | ||
b39a982d TV |
2227 | static int omapfb_parse_def_modes(struct omapfb2_device *fbdev) |
2228 | { | |
2229 | char *str, *options, *this_opt; | |
2230 | int r = 0; | |
2231 | ||
36e8c27f S |
2232 | str = kstrdup(def_mode, GFP_KERNEL); |
2233 | if (!str) | |
2234 | return -ENOMEM; | |
b39a982d TV |
2235 | options = str; |
2236 | ||
2237 | while (!r && (this_opt = strsep(&options, ",")) != NULL) { | |
2238 | char *p, *display_str, *mode_str; | |
2239 | struct omap_dss_device *display; | |
2240 | int i; | |
2241 | ||
2242 | p = strchr(this_opt, ':'); | |
2243 | if (!p) { | |
2244 | r = -EINVAL; | |
2245 | break; | |
2246 | } | |
2247 | ||
2248 | *p = 0; | |
2249 | display_str = this_opt; | |
2250 | mode_str = p + 1; | |
2251 | ||
2252 | display = NULL; | |
2253 | for (i = 0; i < fbdev->num_displays; ++i) { | |
065a40bd | 2254 | if (strcmp(fbdev->displays[i].dssdev->name, |
b39a982d | 2255 | display_str) == 0) { |
065a40bd | 2256 | display = fbdev->displays[i].dssdev; |
b39a982d TV |
2257 | break; |
2258 | } | |
2259 | } | |
2260 | ||
2261 | if (!display) { | |
2262 | r = -EINVAL; | |
2263 | break; | |
2264 | } | |
2265 | ||
a2699504 | 2266 | r = omapfb_set_def_mode(fbdev, display, mode_str); |
b39a982d TV |
2267 | if (r) |
2268 | break; | |
2269 | } | |
2270 | ||
2271 | kfree(str); | |
2272 | ||
2273 | return r; | |
2274 | } | |
2275 | ||
dc891fab TV |
2276 | static void fb_videomode_to_omap_timings(struct fb_videomode *m, |
2277 | struct omap_video_timings *t) | |
2278 | { | |
2279 | t->x_res = m->xres; | |
2280 | t->y_res = m->yres; | |
2281 | t->pixel_clock = PICOS2KHZ(m->pixclock); | |
2282 | t->hsw = m->hsync_len; | |
2283 | t->hfp = m->right_margin; | |
2284 | t->hbp = m->left_margin; | |
2285 | t->vsw = m->vsync_len; | |
2286 | t->vfp = m->lower_margin; | |
2287 | t->vbp = m->upper_margin; | |
2288 | } | |
2289 | ||
2290 | static int omapfb_find_best_mode(struct omap_dss_device *display, | |
2291 | struct omap_video_timings *timings) | |
2292 | { | |
2293 | struct fb_monspecs *specs; | |
2294 | u8 *edid; | |
2295 | int r, i, best_xres, best_idx, len; | |
2296 | ||
2297 | if (!display->driver->read_edid) | |
2298 | return -ENODEV; | |
2299 | ||
2300 | len = 0x80 * 2; | |
2301 | edid = kmalloc(len, GFP_KERNEL); | |
2302 | ||
2303 | r = display->driver->read_edid(display, edid, len); | |
2304 | if (r < 0) | |
2305 | goto err1; | |
2306 | ||
2307 | specs = kzalloc(sizeof(*specs), GFP_KERNEL); | |
2308 | ||
2309 | fb_edid_to_monspecs(edid, specs); | |
2310 | ||
2311 | if (edid[126] > 0) | |
2312 | fb_edid_add_monspecs(edid + 0x80, specs); | |
2313 | ||
2314 | best_xres = 0; | |
2315 | best_idx = -1; | |
2316 | ||
2317 | for (i = 0; i < specs->modedb_len; ++i) { | |
2318 | struct fb_videomode *m; | |
2319 | struct omap_video_timings t; | |
2320 | ||
2321 | m = &specs->modedb[i]; | |
2322 | ||
2323 | if (m->pixclock == 0) | |
2324 | continue; | |
2325 | ||
2326 | /* skip repeated pixel modes */ | |
2327 | if (m->xres == 2880 || m->xres == 1440) | |
2328 | continue; | |
2329 | ||
2330 | fb_videomode_to_omap_timings(m, &t); | |
2331 | ||
2332 | r = display->driver->check_timings(display, &t); | |
2333 | if (r == 0 && best_xres < m->xres) { | |
2334 | best_xres = m->xres; | |
2335 | best_idx = i; | |
2336 | } | |
2337 | } | |
2338 | ||
2339 | if (best_xres == 0) { | |
2340 | r = -ENOENT; | |
2341 | goto err2; | |
2342 | } | |
2343 | ||
2344 | fb_videomode_to_omap_timings(&specs->modedb[best_idx], timings); | |
2345 | ||
2346 | r = 0; | |
2347 | ||
2348 | err2: | |
2349 | fb_destroy_modedb(specs->modedb); | |
2350 | kfree(specs); | |
2351 | err1: | |
2352 | kfree(edid); | |
2353 | ||
2354 | return r; | |
2355 | } | |
2356 | ||
91ac27a6 TV |
2357 | static int omapfb_init_display(struct omapfb2_device *fbdev, |
2358 | struct omap_dss_device *dssdev) | |
2359 | { | |
2360 | struct omap_dss_driver *dssdrv = dssdev->driver; | |
27cc213e | 2361 | struct omapfb_display_data *d; |
91ac27a6 TV |
2362 | int r; |
2363 | ||
2364 | r = dssdrv->enable(dssdev); | |
2365 | if (r) { | |
2366 | dev_warn(fbdev->dev, "Failed to enable display '%s'\n", | |
2367 | dssdev->name); | |
2368 | return r; | |
2369 | } | |
2370 | ||
27cc213e TV |
2371 | d = get_display_data(fbdev, dssdev); |
2372 | ||
2373 | d->fbdev = fbdev; | |
2374 | ||
91ac27a6 TV |
2375 | if (dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) { |
2376 | u16 w, h; | |
27cc213e TV |
2377 | |
2378 | if (auto_update) { | |
2379 | omapfb_start_auto_update(fbdev, dssdev); | |
2380 | d->update_mode = OMAPFB_AUTO_UPDATE; | |
2381 | } else { | |
2382 | d->update_mode = OMAPFB_MANUAL_UPDATE; | |
2383 | } | |
2384 | ||
91ac27a6 TV |
2385 | if (dssdrv->enable_te) { |
2386 | r = dssdrv->enable_te(dssdev, 1); | |
2387 | if (r) { | |
2388 | dev_err(fbdev->dev, "Failed to set TE\n"); | |
2389 | return r; | |
2390 | } | |
2391 | } | |
2392 | ||
91ac27a6 TV |
2393 | dssdrv->get_resolution(dssdev, &w, &h); |
2394 | r = dssdrv->update(dssdev, 0, 0, w, h); | |
2395 | if (r) { | |
2396 | dev_err(fbdev->dev, | |
2397 | "Failed to update display\n"); | |
2398 | return r; | |
2399 | } | |
2400 | } else { | |
27cc213e | 2401 | d->update_mode = OMAPFB_AUTO_UPDATE; |
91ac27a6 TV |
2402 | } |
2403 | ||
2404 | return 0; | |
2405 | } | |
2406 | ||
b39a982d TV |
2407 | static int omapfb_probe(struct platform_device *pdev) |
2408 | { | |
2409 | struct omapfb2_device *fbdev = NULL; | |
2410 | int r = 0; | |
2411 | int i; | |
2412 | struct omap_overlay *ovl; | |
2413 | struct omap_dss_device *def_display; | |
2414 | struct omap_dss_device *dssdev; | |
2415 | ||
2416 | DBG("omapfb_probe\n"); | |
2417 | ||
2418 | if (pdev->num_resources != 0) { | |
2419 | dev_err(&pdev->dev, "probed for an unknown device\n"); | |
2420 | r = -ENODEV; | |
2421 | goto err0; | |
2422 | } | |
2423 | ||
2424 | fbdev = kzalloc(sizeof(struct omapfb2_device), GFP_KERNEL); | |
2425 | if (fbdev == NULL) { | |
2426 | r = -ENOMEM; | |
2427 | goto err0; | |
2428 | } | |
2429 | ||
41814cfc SG |
2430 | /* TODO : Replace cpu check with omap_has_vrfb once HAS_FEATURE |
2431 | * available for OMAP2 and OMAP3 | |
2432 | */ | |
2433 | if (def_vrfb && !cpu_is_omap24xx() && !cpu_is_omap34xx()) { | |
2434 | def_vrfb = 0; | |
2435 | dev_warn(&pdev->dev, "VRFB is not supported on this hardware, " | |
2436 | "ignoring the module parameter vrfb=y\n"); | |
2437 | } | |
2438 | ||
2439 | ||
b39a982d TV |
2440 | mutex_init(&fbdev->mtx); |
2441 | ||
2442 | fbdev->dev = &pdev->dev; | |
2443 | platform_set_drvdata(pdev, fbdev); | |
2444 | ||
b3f91eb8 | 2445 | r = 0; |
b39a982d TV |
2446 | fbdev->num_displays = 0; |
2447 | dssdev = NULL; | |
2448 | for_each_dss_dev(dssdev) { | |
27cc213e TV |
2449 | struct omapfb_display_data *d; |
2450 | ||
b39a982d | 2451 | omap_dss_get_device(dssdev); |
b3f91eb8 | 2452 | |
807a7515 | 2453 | if (!dssdev->driver) { |
bab59b44 | 2454 | dev_warn(&pdev->dev, "no driver for display: %s\n", |
c5f18d7b | 2455 | dssdev->name); |
bab59b44 TV |
2456 | omap_dss_put_device(dssdev); |
2457 | continue; | |
807a7515 | 2458 | } |
b3f91eb8 | 2459 | |
27cc213e TV |
2460 | d = &fbdev->displays[fbdev->num_displays++]; |
2461 | d->dssdev = dssdev; | |
2462 | if (dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) | |
2463 | d->update_mode = OMAPFB_MANUAL_UPDATE; | |
2464 | else | |
2465 | d->update_mode = OMAPFB_AUTO_UPDATE; | |
b39a982d TV |
2466 | } |
2467 | ||
b3f91eb8 TV |
2468 | if (r) |
2469 | goto cleanup; | |
2470 | ||
b39a982d TV |
2471 | if (fbdev->num_displays == 0) { |
2472 | dev_err(&pdev->dev, "no displays\n"); | |
2473 | r = -EINVAL; | |
2474 | goto cleanup; | |
2475 | } | |
2476 | ||
2477 | fbdev->num_overlays = omap_dss_get_num_overlays(); | |
2478 | for (i = 0; i < fbdev->num_overlays; i++) | |
2479 | fbdev->overlays[i] = omap_dss_get_overlay(i); | |
2480 | ||
2481 | fbdev->num_managers = omap_dss_get_num_overlay_managers(); | |
2482 | for (i = 0; i < fbdev->num_managers; i++) | |
2483 | fbdev->managers[i] = omap_dss_get_overlay_manager(i); | |
2484 | ||
dc891fab TV |
2485 | /* gfx overlay should be the default one. find a display |
2486 | * connected to that, and use it as default display */ | |
2487 | ovl = omap_dss_get_overlay(0); | |
2488 | if (ovl->manager && ovl->manager->device) { | |
2489 | def_display = ovl->manager->device; | |
2490 | } else { | |
2491 | dev_warn(&pdev->dev, "cannot find default display\n"); | |
2492 | def_display = NULL; | |
2493 | } | |
2494 | ||
b39a982d TV |
2495 | if (def_mode && strlen(def_mode) > 0) { |
2496 | if (omapfb_parse_def_modes(fbdev)) | |
2497 | dev_warn(&pdev->dev, "cannot parse default modes\n"); | |
dc891fab TV |
2498 | } else if (def_display && def_display->driver->set_timings && |
2499 | def_display->driver->check_timings) { | |
2500 | struct omap_video_timings t; | |
2501 | ||
2502 | r = omapfb_find_best_mode(def_display, &t); | |
2503 | ||
2504 | if (r == 0) | |
2505 | def_display->driver->set_timings(def_display, &t); | |
b39a982d TV |
2506 | } |
2507 | ||
2508 | r = omapfb_create_framebuffers(fbdev); | |
2509 | if (r) | |
2510 | goto cleanup; | |
2511 | ||
2512 | for (i = 0; i < fbdev->num_managers; i++) { | |
2513 | struct omap_overlay_manager *mgr; | |
2514 | mgr = fbdev->managers[i]; | |
2515 | r = mgr->apply(mgr); | |
2516 | if (r) | |
2517 | dev_warn(fbdev->dev, "failed to apply dispc config\n"); | |
2518 | } | |
2519 | ||
2520 | DBG("mgr->apply'ed\n"); | |
2521 | ||
b39a982d | 2522 | if (def_display) { |
91ac27a6 | 2523 | r = omapfb_init_display(fbdev, def_display); |
6d2e0bd6 | 2524 | if (r) { |
91ac27a6 TV |
2525 | dev_err(fbdev->dev, |
2526 | "failed to initialize default " | |
2527 | "display\n"); | |
6d2e0bd6 TV |
2528 | goto cleanup; |
2529 | } | |
b39a982d TV |
2530 | } |
2531 | ||
e26ed44c AM |
2532 | DBG("create sysfs for fbs\n"); |
2533 | r = omapfb_create_sysfs(fbdev); | |
2534 | if (r) { | |
2535 | dev_err(fbdev->dev, "failed to create sysfs entries\n"); | |
2536 | goto cleanup; | |
2537 | } | |
2538 | ||
b39a982d TV |
2539 | return 0; |
2540 | ||
2541 | cleanup: | |
2542 | omapfb_free_resources(fbdev); | |
2543 | err0: | |
2544 | dev_err(&pdev->dev, "failed to setup omapfb\n"); | |
2545 | return r; | |
2546 | } | |
2547 | ||
2548 | static int omapfb_remove(struct platform_device *pdev) | |
2549 | { | |
2550 | struct omapfb2_device *fbdev = platform_get_drvdata(pdev); | |
2551 | ||
2552 | /* FIXME: wait till completion of pending events */ | |
2553 | ||
2554 | omapfb_remove_sysfs(fbdev); | |
2555 | ||
2556 | omapfb_free_resources(fbdev); | |
2557 | ||
2558 | return 0; | |
2559 | } | |
2560 | ||
2561 | static struct platform_driver omapfb_driver = { | |
2562 | .probe = omapfb_probe, | |
2563 | .remove = omapfb_remove, | |
2564 | .driver = { | |
2565 | .name = "omapfb", | |
2566 | .owner = THIS_MODULE, | |
2567 | }, | |
2568 | }; | |
2569 | ||
2570 | static int __init omapfb_init(void) | |
2571 | { | |
2572 | DBG("omapfb_init\n"); | |
2573 | ||
2574 | if (platform_driver_register(&omapfb_driver)) { | |
2575 | printk(KERN_ERR "failed to register omapfb driver\n"); | |
2576 | return -ENODEV; | |
2577 | } | |
2578 | ||
2579 | return 0; | |
2580 | } | |
2581 | ||
2582 | static void __exit omapfb_exit(void) | |
2583 | { | |
2584 | DBG("omapfb_exit\n"); | |
2585 | platform_driver_unregister(&omapfb_driver); | |
2586 | } | |
2587 | ||
2588 | module_param_named(mode, def_mode, charp, 0); | |
2589 | module_param_named(vram, def_vram, charp, 0); | |
2590 | module_param_named(rotate, def_rotate, int, 0); | |
2591 | module_param_named(vrfb, def_vrfb, bool, 0); | |
2592 | module_param_named(mirror, def_mirror, bool, 0); | |
2593 | ||
2594 | /* late_initcall to let panel/ctrl drivers loaded first. | |
2595 | * I guess better option would be a more dynamic approach, | |
2596 | * so that omapfb reacts to new panels when they are loaded */ | |
2597 | late_initcall(omapfb_init); | |
2598 | /*module_init(omapfb_init);*/ | |
2599 | module_exit(omapfb_exit); | |
2600 | ||
2601 | MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@nokia.com>"); | |
2602 | MODULE_DESCRIPTION("OMAP2/3 Framebuffer"); | |
2603 | MODULE_LICENSE("GPL v2"); |