Commit | Line | Data |
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8b08cf2b ID |
1 | /* |
2 | * Framebuffer driver for TI OMAP boards | |
3 | * | |
4 | * Copyright (C) 2004 Nokia Corporation | |
5 | * Author: Imre Deak <imre.deak@nokia.com> | |
6 | * | |
7 | * Acknowledgements: | |
8 | * Alex McMains <aam@ridgerun.com> - Original driver | |
9 | * Juha Yrjola <juha.yrjola@nokia.com> - Original driver and improvements | |
10 | * Dirk Behme <dirk.behme@de.bosch.com> - changes for 2.6 kernel API | |
11 | * Texas Instruments - H3 support | |
12 | * | |
13 | * This program is free software; you can redistribute it and/or modify it | |
14 | * under the terms of the GNU General Public License as published by the | |
15 | * Free Software Foundation; either version 2 of the License, or (at your | |
16 | * option) any later version. | |
17 | * | |
18 | * This program is distributed in the hope that it will be useful, but | |
19 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
21 | * General Public License for more details. | |
22 | * | |
23 | * You should have received a copy of the GNU General Public License along | |
24 | * with this program; if not, write to the Free Software Foundation, Inc., | |
25 | * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
26 | */ | |
27 | #include <linux/platform_device.h> | |
27ac792c | 28 | #include <linux/mm.h> |
8b08cf2b ID |
29 | #include <linux/uaccess.h> |
30 | ||
a09e64fb RK |
31 | #include <mach/dma.h> |
32 | #include <mach/omapfb.h> | |
8b08cf2b | 33 | |
7c8ad982 RK |
34 | #include "lcdc.h" |
35 | #include "dispc.h" | |
36 | ||
8b08cf2b ID |
37 | #define MODULE_NAME "omapfb" |
38 | ||
39 | static unsigned int def_accel; | |
40 | static unsigned long def_vram[OMAPFB_PLANE_NUM]; | |
7c8ad982 | 41 | static unsigned int def_vram_cnt; |
8b08cf2b ID |
42 | static unsigned long def_vxres; |
43 | static unsigned long def_vyres; | |
44 | static unsigned int def_rotate; | |
45 | static unsigned int def_mirror; | |
46 | ||
47 | #ifdef CONFIG_FB_OMAP_MANUAL_UPDATE | |
48 | static int manual_update = 1; | |
49 | #else | |
50 | static int manual_update; | |
51 | #endif | |
52 | ||
53 | static struct platform_device *fbdev_pdev; | |
54 | static struct lcd_panel *fbdev_panel; | |
55 | static struct omapfb_device *omapfb_dev; | |
56 | ||
57 | struct caps_table_struct { | |
58 | unsigned long flag; | |
59 | const char *name; | |
60 | }; | |
61 | ||
62 | static struct caps_table_struct ctrl_caps[] = { | |
63 | { OMAPFB_CAPS_MANUAL_UPDATE, "manual update" }, | |
64 | { OMAPFB_CAPS_TEARSYNC, "tearing synchronization" }, | |
65 | { OMAPFB_CAPS_PLANE_RELOCATE_MEM, "relocate plane memory" }, | |
66 | { OMAPFB_CAPS_PLANE_SCALE, "scale plane" }, | |
67 | { OMAPFB_CAPS_WINDOW_PIXEL_DOUBLE, "pixel double window" }, | |
68 | { OMAPFB_CAPS_WINDOW_SCALE, "scale window" }, | |
69 | { OMAPFB_CAPS_WINDOW_OVERLAY, "overlay window" }, | |
2f21a62f | 70 | { OMAPFB_CAPS_WINDOW_ROTATE, "rotate window" }, |
8b08cf2b ID |
71 | { OMAPFB_CAPS_SET_BACKLIGHT, "backlight setting" }, |
72 | }; | |
73 | ||
74 | static struct caps_table_struct color_caps[] = { | |
75 | { 1 << OMAPFB_COLOR_RGB565, "RGB565", }, | |
76 | { 1 << OMAPFB_COLOR_YUV422, "YUV422", }, | |
77 | { 1 << OMAPFB_COLOR_YUV420, "YUV420", }, | |
78 | { 1 << OMAPFB_COLOR_CLUT_8BPP, "CLUT8", }, | |
79 | { 1 << OMAPFB_COLOR_CLUT_4BPP, "CLUT4", }, | |
80 | { 1 << OMAPFB_COLOR_CLUT_2BPP, "CLUT2", }, | |
81 | { 1 << OMAPFB_COLOR_CLUT_1BPP, "CLUT1", }, | |
82 | { 1 << OMAPFB_COLOR_RGB444, "RGB444", }, | |
83 | { 1 << OMAPFB_COLOR_YUY422, "YUY422", }, | |
84 | }; | |
85 | ||
86 | /* | |
87 | * --------------------------------------------------------------------------- | |
88 | * LCD panel | |
89 | * --------------------------------------------------------------------------- | |
90 | */ | |
8b08cf2b ID |
91 | extern struct lcd_ctrl hwa742_ctrl; |
92 | extern struct lcd_ctrl blizzard_ctrl; | |
93 | ||
7c8ad982 | 94 | static const struct lcd_ctrl *ctrls[] = { |
8b08cf2b ID |
95 | #ifdef CONFIG_ARCH_OMAP1 |
96 | &omap1_int_ctrl, | |
97 | #else | |
98 | &omap2_int_ctrl, | |
99 | #endif | |
100 | ||
101 | #ifdef CONFIG_FB_OMAP_LCDC_HWA742 | |
102 | &hwa742_ctrl, | |
103 | #endif | |
104 | #ifdef CONFIG_FB_OMAP_LCDC_BLIZZARD | |
105 | &blizzard_ctrl, | |
106 | #endif | |
107 | }; | |
108 | ||
109 | #ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL | |
110 | #ifdef CONFIG_ARCH_OMAP1 | |
111 | extern struct lcd_ctrl_extif omap1_ext_if; | |
112 | #else | |
113 | extern struct lcd_ctrl_extif omap2_ext_if; | |
114 | #endif | |
115 | #endif | |
116 | ||
117 | static void omapfb_rqueue_lock(struct omapfb_device *fbdev) | |
118 | { | |
119 | mutex_lock(&fbdev->rqueue_mutex); | |
120 | } | |
121 | ||
122 | static void omapfb_rqueue_unlock(struct omapfb_device *fbdev) | |
123 | { | |
124 | mutex_unlock(&fbdev->rqueue_mutex); | |
125 | } | |
126 | ||
127 | /* | |
128 | * --------------------------------------------------------------------------- | |
129 | * LCD controller and LCD DMA | |
130 | * --------------------------------------------------------------------------- | |
131 | */ | |
132 | /* Lookup table to map elem size to elem type. */ | |
133 | static const int dma_elem_type[] = { | |
134 | 0, | |
135 | OMAP_DMA_DATA_TYPE_S8, | |
136 | OMAP_DMA_DATA_TYPE_S16, | |
137 | 0, | |
138 | OMAP_DMA_DATA_TYPE_S32, | |
139 | }; | |
140 | ||
141 | /* | |
142 | * Allocate resources needed for LCD controller and LCD DMA operations. Video | |
143 | * memory is allocated from system memory according to the virtual display | |
144 | * size, except if a bigger memory size is specified explicitly as a kernel | |
145 | * parameter. | |
146 | */ | |
147 | static int ctrl_init(struct omapfb_device *fbdev) | |
148 | { | |
149 | int r; | |
150 | int i; | |
151 | ||
152 | /* kernel/module vram parameters override boot tags/board config */ | |
153 | if (def_vram_cnt) { | |
154 | for (i = 0; i < def_vram_cnt; i++) | |
155 | fbdev->mem_desc.region[i].size = | |
156 | PAGE_ALIGN(def_vram[i]); | |
157 | fbdev->mem_desc.region_cnt = i; | |
158 | } else { | |
159 | struct omapfb_platform_data *conf; | |
160 | ||
161 | conf = fbdev->dev->platform_data; | |
162 | fbdev->mem_desc = conf->mem_desc; | |
163 | } | |
164 | ||
165 | if (!fbdev->mem_desc.region_cnt) { | |
166 | struct lcd_panel *panel = fbdev->panel; | |
167 | int def_size; | |
168 | int bpp = panel->bpp; | |
169 | ||
170 | /* 12 bpp is packed in 16 bits */ | |
171 | if (bpp == 12) | |
172 | bpp = 16; | |
173 | def_size = def_vxres * def_vyres * bpp / 8; | |
174 | fbdev->mem_desc.region_cnt = 1; | |
175 | fbdev->mem_desc.region[0].size = PAGE_ALIGN(def_size); | |
176 | } | |
177 | r = fbdev->ctrl->init(fbdev, 0, &fbdev->mem_desc); | |
178 | if (r < 0) { | |
179 | dev_err(fbdev->dev, "controller initialization failed (%d)\n", | |
180 | r); | |
181 | return r; | |
182 | } | |
183 | ||
184 | #ifdef DEBUG | |
185 | for (i = 0; i < fbdev->mem_desc.region_cnt; i++) { | |
186 | dev_dbg(fbdev->dev, "region%d phys %08x virt %p size=%lu\n", | |
187 | i, | |
188 | fbdev->mem_desc.region[i].paddr, | |
189 | fbdev->mem_desc.region[i].vaddr, | |
190 | fbdev->mem_desc.region[i].size); | |
191 | } | |
192 | #endif | |
193 | return 0; | |
194 | } | |
195 | ||
196 | static void ctrl_cleanup(struct omapfb_device *fbdev) | |
197 | { | |
198 | fbdev->ctrl->cleanup(); | |
199 | } | |
200 | ||
201 | /* Must be called with fbdev->rqueue_mutex held. */ | |
202 | static int ctrl_change_mode(struct fb_info *fbi) | |
203 | { | |
204 | int r; | |
205 | unsigned long offset; | |
206 | struct omapfb_plane_struct *plane = fbi->par; | |
207 | struct omapfb_device *fbdev = plane->fbdev; | |
208 | struct fb_var_screeninfo *var = &fbi->var; | |
209 | ||
210 | offset = var->yoffset * fbi->fix.line_length + | |
211 | var->xoffset * var->bits_per_pixel / 8; | |
212 | ||
213 | if (fbdev->ctrl->sync) | |
214 | fbdev->ctrl->sync(); | |
215 | r = fbdev->ctrl->setup_plane(plane->idx, plane->info.channel_out, | |
216 | offset, var->xres_virtual, | |
217 | plane->info.pos_x, plane->info.pos_y, | |
218 | var->xres, var->yres, plane->color_mode); | |
2f21a62f RV |
219 | if (r < 0) |
220 | return r; | |
221 | ||
222 | if (fbdev->ctrl->set_rotate != NULL) { | |
223 | r = fbdev->ctrl->set_rotate(var->rotate); | |
224 | if (r < 0) | |
225 | return r; | |
226 | } | |
227 | ||
8b08cf2b ID |
228 | if (fbdev->ctrl->set_scale != NULL) |
229 | r = fbdev->ctrl->set_scale(plane->idx, | |
230 | var->xres, var->yres, | |
231 | plane->info.out_width, | |
232 | plane->info.out_height); | |
233 | ||
234 | return r; | |
235 | } | |
236 | ||
237 | /* | |
238 | * --------------------------------------------------------------------------- | |
239 | * fbdev framework callbacks and the ioctl interface | |
240 | * --------------------------------------------------------------------------- | |
241 | */ | |
242 | /* Called each time the omapfb device is opened */ | |
243 | static int omapfb_open(struct fb_info *info, int user) | |
244 | { | |
245 | return 0; | |
246 | } | |
247 | ||
248 | static void omapfb_sync(struct fb_info *info); | |
249 | ||
250 | /* Called when the omapfb device is closed. We make sure that any pending | |
251 | * gfx DMA operations are ended, before we return. */ | |
252 | static int omapfb_release(struct fb_info *info, int user) | |
253 | { | |
254 | omapfb_sync(info); | |
255 | return 0; | |
256 | } | |
257 | ||
258 | /* Store a single color palette entry into a pseudo palette or the hardware | |
259 | * palette if one is available. For now we support only 16bpp and thus store | |
260 | * the entry only to the pseudo palette. | |
261 | */ | |
262 | static int _setcolreg(struct fb_info *info, u_int regno, u_int red, u_int green, | |
263 | u_int blue, u_int transp, int update_hw_pal) | |
264 | { | |
265 | struct omapfb_plane_struct *plane = info->par; | |
266 | struct omapfb_device *fbdev = plane->fbdev; | |
267 | struct fb_var_screeninfo *var = &info->var; | |
268 | int r = 0; | |
269 | ||
270 | switch (plane->color_mode) { | |
271 | case OMAPFB_COLOR_YUV422: | |
272 | case OMAPFB_COLOR_YUV420: | |
273 | case OMAPFB_COLOR_YUY422: | |
274 | r = -EINVAL; | |
275 | break; | |
276 | case OMAPFB_COLOR_CLUT_8BPP: | |
277 | case OMAPFB_COLOR_CLUT_4BPP: | |
278 | case OMAPFB_COLOR_CLUT_2BPP: | |
279 | case OMAPFB_COLOR_CLUT_1BPP: | |
280 | if (fbdev->ctrl->setcolreg) | |
281 | r = fbdev->ctrl->setcolreg(regno, red, green, blue, | |
282 | transp, update_hw_pal); | |
283 | /* Fallthrough */ | |
284 | case OMAPFB_COLOR_RGB565: | |
285 | case OMAPFB_COLOR_RGB444: | |
286 | if (r != 0) | |
287 | break; | |
288 | ||
289 | if (regno < 0) { | |
290 | r = -EINVAL; | |
291 | break; | |
292 | } | |
293 | ||
294 | if (regno < 16) { | |
295 | u16 pal; | |
296 | pal = ((red >> (16 - var->red.length)) << | |
297 | var->red.offset) | | |
298 | ((green >> (16 - var->green.length)) << | |
299 | var->green.offset) | | |
300 | (blue >> (16 - var->blue.length)); | |
301 | ((u32 *)(info->pseudo_palette))[regno] = pal; | |
302 | } | |
303 | break; | |
304 | default: | |
305 | BUG(); | |
306 | } | |
307 | return r; | |
308 | } | |
309 | ||
310 | static int omapfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, | |
311 | u_int transp, struct fb_info *info) | |
312 | { | |
313 | return _setcolreg(info, regno, red, green, blue, transp, 1); | |
314 | } | |
315 | ||
316 | static int omapfb_setcmap(struct fb_cmap *cmap, struct fb_info *info) | |
317 | { | |
318 | int count, index, r; | |
319 | u16 *red, *green, *blue, *transp; | |
320 | u16 trans = 0xffff; | |
321 | ||
322 | red = cmap->red; | |
323 | green = cmap->green; | |
324 | blue = cmap->blue; | |
325 | transp = cmap->transp; | |
326 | index = cmap->start; | |
327 | ||
328 | for (count = 0; count < cmap->len; count++) { | |
329 | if (transp) | |
330 | trans = *transp++; | |
331 | r = _setcolreg(info, index++, *red++, *green++, *blue++, trans, | |
332 | count == cmap->len - 1); | |
333 | if (r != 0) | |
334 | return r; | |
335 | } | |
336 | ||
337 | return 0; | |
338 | } | |
339 | ||
340 | static int omapfb_update_full_screen(struct fb_info *fbi); | |
341 | ||
342 | static int omapfb_blank(int blank, struct fb_info *fbi) | |
343 | { | |
344 | struct omapfb_plane_struct *plane = fbi->par; | |
345 | struct omapfb_device *fbdev = plane->fbdev; | |
346 | int do_update = 0; | |
347 | int r = 0; | |
348 | ||
349 | omapfb_rqueue_lock(fbdev); | |
350 | switch (blank) { | |
c958557e | 351 | case FB_BLANK_UNBLANK: |
8b08cf2b ID |
352 | if (fbdev->state == OMAPFB_SUSPENDED) { |
353 | if (fbdev->ctrl->resume) | |
354 | fbdev->ctrl->resume(); | |
355 | fbdev->panel->enable(fbdev->panel); | |
356 | fbdev->state = OMAPFB_ACTIVE; | |
357 | if (fbdev->ctrl->get_update_mode() == | |
358 | OMAPFB_MANUAL_UPDATE) | |
359 | do_update = 1; | |
360 | } | |
361 | break; | |
c958557e | 362 | case FB_BLANK_POWERDOWN: |
8b08cf2b ID |
363 | if (fbdev->state == OMAPFB_ACTIVE) { |
364 | fbdev->panel->disable(fbdev->panel); | |
365 | if (fbdev->ctrl->suspend) | |
366 | fbdev->ctrl->suspend(); | |
367 | fbdev->state = OMAPFB_SUSPENDED; | |
368 | } | |
369 | break; | |
370 | default: | |
371 | r = -EINVAL; | |
372 | } | |
373 | omapfb_rqueue_unlock(fbdev); | |
374 | ||
375 | if (r == 0 && do_update) | |
376 | r = omapfb_update_full_screen(fbi); | |
377 | ||
378 | return r; | |
379 | } | |
380 | ||
381 | static void omapfb_sync(struct fb_info *fbi) | |
382 | { | |
383 | struct omapfb_plane_struct *plane = fbi->par; | |
384 | struct omapfb_device *fbdev = plane->fbdev; | |
385 | ||
386 | omapfb_rqueue_lock(fbdev); | |
387 | if (fbdev->ctrl->sync) | |
388 | fbdev->ctrl->sync(); | |
389 | omapfb_rqueue_unlock(fbdev); | |
390 | } | |
391 | ||
392 | /* | |
393 | * Set fb_info.fix fields and also updates fbdev. | |
394 | * When calling this fb_info.var must be set up already. | |
395 | */ | |
396 | static void set_fb_fix(struct fb_info *fbi) | |
397 | { | |
398 | struct fb_fix_screeninfo *fix = &fbi->fix; | |
399 | struct fb_var_screeninfo *var = &fbi->var; | |
400 | struct omapfb_plane_struct *plane = fbi->par; | |
401 | struct omapfb_mem_region *rg; | |
402 | int bpp; | |
403 | ||
404 | rg = &plane->fbdev->mem_desc.region[plane->idx]; | |
020f9706 | 405 | fbi->screen_base = rg->vaddr; |
537a1bf0 | 406 | mutex_lock(&fbi->mm_lock); |
8b08cf2b ID |
407 | fix->smem_start = rg->paddr; |
408 | fix->smem_len = rg->size; | |
537a1bf0 | 409 | mutex_unlock(&fbi->mm_lock); |
8b08cf2b ID |
410 | |
411 | fix->type = FB_TYPE_PACKED_PIXELS; | |
412 | bpp = var->bits_per_pixel; | |
413 | if (var->nonstd) | |
414 | fix->visual = FB_VISUAL_PSEUDOCOLOR; | |
415 | else switch (var->bits_per_pixel) { | |
416 | case 16: | |
417 | case 12: | |
418 | fix->visual = FB_VISUAL_TRUECOLOR; | |
419 | /* 12bpp is stored in 16 bits */ | |
420 | bpp = 16; | |
421 | break; | |
422 | case 1: | |
423 | case 2: | |
424 | case 4: | |
425 | case 8: | |
426 | fix->visual = FB_VISUAL_PSEUDOCOLOR; | |
427 | break; | |
428 | } | |
429 | fix->accel = FB_ACCEL_OMAP1610; | |
430 | fix->line_length = var->xres_virtual * bpp / 8; | |
431 | } | |
432 | ||
433 | static int set_color_mode(struct omapfb_plane_struct *plane, | |
434 | struct fb_var_screeninfo *var) | |
435 | { | |
436 | switch (var->nonstd) { | |
437 | case 0: | |
438 | break; | |
439 | case OMAPFB_COLOR_YUV422: | |
440 | var->bits_per_pixel = 16; | |
441 | plane->color_mode = var->nonstd; | |
442 | return 0; | |
443 | case OMAPFB_COLOR_YUV420: | |
444 | var->bits_per_pixel = 12; | |
445 | plane->color_mode = var->nonstd; | |
446 | return 0; | |
447 | case OMAPFB_COLOR_YUY422: | |
448 | var->bits_per_pixel = 16; | |
449 | plane->color_mode = var->nonstd; | |
450 | return 0; | |
451 | default: | |
452 | return -EINVAL; | |
453 | } | |
454 | ||
455 | switch (var->bits_per_pixel) { | |
456 | case 1: | |
457 | plane->color_mode = OMAPFB_COLOR_CLUT_1BPP; | |
458 | return 0; | |
459 | case 2: | |
460 | plane->color_mode = OMAPFB_COLOR_CLUT_2BPP; | |
461 | return 0; | |
462 | case 4: | |
463 | plane->color_mode = OMAPFB_COLOR_CLUT_4BPP; | |
464 | return 0; | |
465 | case 8: | |
466 | plane->color_mode = OMAPFB_COLOR_CLUT_8BPP; | |
467 | return 0; | |
468 | case 12: | |
469 | var->bits_per_pixel = 16; | |
470 | plane->color_mode = OMAPFB_COLOR_RGB444; | |
471 | return 0; | |
472 | case 16: | |
473 | plane->color_mode = OMAPFB_COLOR_RGB565; | |
474 | return 0; | |
475 | default: | |
476 | return -EINVAL; | |
477 | } | |
478 | } | |
479 | ||
480 | /* | |
481 | * Check the values in var against our capabilities and in case of out of | |
482 | * bound values try to adjust them. | |
483 | */ | |
484 | static int set_fb_var(struct fb_info *fbi, | |
485 | struct fb_var_screeninfo *var) | |
486 | { | |
487 | int bpp; | |
488 | unsigned long max_frame_size; | |
489 | unsigned long line_size; | |
490 | int xres_min, xres_max; | |
491 | int yres_min, yres_max; | |
492 | struct omapfb_plane_struct *plane = fbi->par; | |
493 | struct omapfb_device *fbdev = plane->fbdev; | |
494 | struct lcd_panel *panel = fbdev->panel; | |
495 | ||
496 | if (set_color_mode(plane, var) < 0) | |
497 | return -EINVAL; | |
498 | ||
499 | bpp = var->bits_per_pixel; | |
500 | if (plane->color_mode == OMAPFB_COLOR_RGB444) | |
501 | bpp = 16; | |
502 | ||
503 | switch (var->rotate) { | |
504 | case 0: | |
505 | case 180: | |
506 | xres_min = OMAPFB_PLANE_XRES_MIN; | |
507 | xres_max = panel->x_res; | |
508 | yres_min = OMAPFB_PLANE_YRES_MIN; | |
509 | yres_max = panel->y_res; | |
510 | if (cpu_is_omap15xx()) { | |
511 | var->xres = panel->x_res; | |
512 | var->yres = panel->y_res; | |
513 | } | |
514 | break; | |
515 | case 90: | |
516 | case 270: | |
517 | xres_min = OMAPFB_PLANE_YRES_MIN; | |
518 | xres_max = panel->y_res; | |
519 | yres_min = OMAPFB_PLANE_XRES_MIN; | |
520 | yres_max = panel->x_res; | |
521 | if (cpu_is_omap15xx()) { | |
522 | var->xres = panel->y_res; | |
523 | var->yres = panel->x_res; | |
524 | } | |
525 | break; | |
526 | default: | |
527 | return -EINVAL; | |
528 | } | |
529 | ||
530 | if (var->xres < xres_min) | |
531 | var->xres = xres_min; | |
532 | if (var->yres < yres_min) | |
533 | var->yres = yres_min; | |
534 | if (var->xres > xres_max) | |
535 | var->xres = xres_max; | |
536 | if (var->yres > yres_max) | |
537 | var->yres = yres_max; | |
538 | ||
539 | if (var->xres_virtual < var->xres) | |
540 | var->xres_virtual = var->xres; | |
541 | if (var->yres_virtual < var->yres) | |
542 | var->yres_virtual = var->yres; | |
543 | max_frame_size = fbdev->mem_desc.region[plane->idx].size; | |
544 | line_size = var->xres_virtual * bpp / 8; | |
545 | if (line_size * var->yres_virtual > max_frame_size) { | |
546 | /* Try to keep yres_virtual first */ | |
547 | line_size = max_frame_size / var->yres_virtual; | |
548 | var->xres_virtual = line_size * 8 / bpp; | |
549 | if (var->xres_virtual < var->xres) { | |
550 | /* Still doesn't fit. Shrink yres_virtual too */ | |
551 | var->xres_virtual = var->xres; | |
552 | line_size = var->xres * bpp / 8; | |
553 | var->yres_virtual = max_frame_size / line_size; | |
554 | } | |
555 | /* Recheck this, as the virtual size changed. */ | |
556 | if (var->xres_virtual < var->xres) | |
557 | var->xres = var->xres_virtual; | |
558 | if (var->yres_virtual < var->yres) | |
559 | var->yres = var->yres_virtual; | |
560 | if (var->xres < xres_min || var->yres < yres_min) | |
561 | return -EINVAL; | |
562 | } | |
563 | if (var->xres + var->xoffset > var->xres_virtual) | |
564 | var->xoffset = var->xres_virtual - var->xres; | |
565 | if (var->yres + var->yoffset > var->yres_virtual) | |
566 | var->yoffset = var->yres_virtual - var->yres; | |
567 | line_size = var->xres * bpp / 8; | |
568 | ||
569 | if (plane->color_mode == OMAPFB_COLOR_RGB444) { | |
570 | var->red.offset = 8; var->red.length = 4; | |
571 | var->red.msb_right = 0; | |
572 | var->green.offset = 4; var->green.length = 4; | |
573 | var->green.msb_right = 0; | |
574 | var->blue.offset = 0; var->blue.length = 4; | |
575 | var->blue.msb_right = 0; | |
576 | } else { | |
577 | var->red.offset = 11; var->red.length = 5; | |
578 | var->red.msb_right = 0; | |
579 | var->green.offset = 5; var->green.length = 6; | |
580 | var->green.msb_right = 0; | |
581 | var->blue.offset = 0; var->blue.length = 5; | |
582 | var->blue.msb_right = 0; | |
583 | } | |
584 | ||
585 | var->height = -1; | |
586 | var->width = -1; | |
587 | var->grayscale = 0; | |
588 | ||
589 | /* pixclock in ps, the rest in pixclock */ | |
590 | var->pixclock = 10000000 / (panel->pixel_clock / 100); | |
591 | var->left_margin = panel->hfp; | |
592 | var->right_margin = panel->hbp; | |
593 | var->upper_margin = panel->vfp; | |
594 | var->lower_margin = panel->vbp; | |
595 | var->hsync_len = panel->hsw; | |
596 | var->vsync_len = panel->vsw; | |
597 | ||
598 | /* TODO: get these from panel->config */ | |
599 | var->vmode = FB_VMODE_NONINTERLACED; | |
600 | var->sync = 0; | |
601 | ||
602 | return 0; | |
603 | } | |
604 | ||
605 | ||
606 | /* Set rotation (0, 90, 180, 270 degree), and switch to the new mode. */ | |
607 | static void omapfb_rotate(struct fb_info *fbi, int rotate) | |
608 | { | |
609 | struct omapfb_plane_struct *plane = fbi->par; | |
610 | struct omapfb_device *fbdev = plane->fbdev; | |
611 | ||
612 | omapfb_rqueue_lock(fbdev); | |
2f21a62f | 613 | if (rotate != fbi->var.rotate) { |
8b08cf2b ID |
614 | struct fb_var_screeninfo *new_var = &fbdev->new_var; |
615 | ||
616 | memcpy(new_var, &fbi->var, sizeof(*new_var)); | |
617 | new_var->rotate = rotate; | |
618 | if (set_fb_var(fbi, new_var) == 0 && | |
619 | memcmp(new_var, &fbi->var, sizeof(*new_var))) { | |
620 | memcpy(&fbi->var, new_var, sizeof(*new_var)); | |
621 | ctrl_change_mode(fbi); | |
622 | } | |
623 | } | |
624 | omapfb_rqueue_unlock(fbdev); | |
625 | } | |
626 | ||
627 | /* | |
628 | * Set new x,y offsets in the virtual display for the visible area and switch | |
629 | * to the new mode. | |
630 | */ | |
631 | static int omapfb_pan_display(struct fb_var_screeninfo *var, | |
632 | struct fb_info *fbi) | |
633 | { | |
634 | struct omapfb_plane_struct *plane = fbi->par; | |
635 | struct omapfb_device *fbdev = plane->fbdev; | |
636 | int r = 0; | |
637 | ||
638 | omapfb_rqueue_lock(fbdev); | |
639 | if (var->xoffset != fbi->var.xoffset || | |
640 | var->yoffset != fbi->var.yoffset) { | |
641 | struct fb_var_screeninfo *new_var = &fbdev->new_var; | |
642 | ||
643 | memcpy(new_var, &fbi->var, sizeof(*new_var)); | |
644 | new_var->xoffset = var->xoffset; | |
645 | new_var->yoffset = var->yoffset; | |
646 | if (set_fb_var(fbi, new_var)) | |
647 | r = -EINVAL; | |
648 | else { | |
649 | memcpy(&fbi->var, new_var, sizeof(*new_var)); | |
650 | ctrl_change_mode(fbi); | |
651 | } | |
652 | } | |
653 | omapfb_rqueue_unlock(fbdev); | |
654 | ||
655 | return r; | |
656 | } | |
657 | ||
658 | /* Set mirror to vertical axis and switch to the new mode. */ | |
659 | static int omapfb_mirror(struct fb_info *fbi, int mirror) | |
660 | { | |
661 | struct omapfb_plane_struct *plane = fbi->par; | |
662 | struct omapfb_device *fbdev = plane->fbdev; | |
663 | int r = 0; | |
664 | ||
665 | omapfb_rqueue_lock(fbdev); | |
666 | mirror = mirror ? 1 : 0; | |
667 | if (cpu_is_omap15xx()) | |
668 | r = -EINVAL; | |
669 | else if (mirror != plane->info.mirror) { | |
670 | plane->info.mirror = mirror; | |
671 | r = ctrl_change_mode(fbi); | |
672 | } | |
673 | omapfb_rqueue_unlock(fbdev); | |
674 | ||
675 | return r; | |
676 | } | |
677 | ||
678 | /* | |
679 | * Check values in var, try to adjust them in case of out of bound values if | |
680 | * possible, or return error. | |
681 | */ | |
682 | static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi) | |
683 | { | |
684 | struct omapfb_plane_struct *plane = fbi->par; | |
685 | struct omapfb_device *fbdev = plane->fbdev; | |
686 | int r; | |
687 | ||
688 | omapfb_rqueue_lock(fbdev); | |
689 | if (fbdev->ctrl->sync != NULL) | |
690 | fbdev->ctrl->sync(); | |
691 | r = set_fb_var(fbi, var); | |
692 | omapfb_rqueue_unlock(fbdev); | |
693 | ||
694 | return r; | |
695 | } | |
696 | ||
697 | /* | |
698 | * Switch to a new mode. The parameters for it has been check already by | |
699 | * omapfb_check_var. | |
700 | */ | |
701 | static int omapfb_set_par(struct fb_info *fbi) | |
702 | { | |
703 | struct omapfb_plane_struct *plane = fbi->par; | |
704 | struct omapfb_device *fbdev = plane->fbdev; | |
705 | int r = 0; | |
706 | ||
707 | omapfb_rqueue_lock(fbdev); | |
708 | set_fb_fix(fbi); | |
709 | r = ctrl_change_mode(fbi); | |
710 | omapfb_rqueue_unlock(fbdev); | |
711 | ||
712 | return r; | |
713 | } | |
714 | ||
715 | int omapfb_update_window_async(struct fb_info *fbi, | |
716 | struct omapfb_update_window *win, | |
717 | void (*callback)(void *), | |
718 | void *callback_data) | |
719 | { | |
2f21a62f | 720 | int xres, yres; |
8b08cf2b ID |
721 | struct omapfb_plane_struct *plane = fbi->par; |
722 | struct omapfb_device *fbdev = plane->fbdev; | |
2f21a62f RV |
723 | struct fb_var_screeninfo *var = &fbi->var; |
724 | ||
725 | switch (var->rotate) { | |
726 | case 0: | |
727 | case 180: | |
728 | xres = fbdev->panel->x_res; | |
729 | yres = fbdev->panel->y_res; | |
730 | break; | |
731 | case 90: | |
732 | case 270: | |
733 | xres = fbdev->panel->y_res; | |
734 | yres = fbdev->panel->x_res; | |
735 | break; | |
736 | default: | |
737 | return -EINVAL; | |
738 | } | |
8b08cf2b | 739 | |
2f21a62f RV |
740 | if (win->x >= xres || win->y >= yres || |
741 | win->out_x > xres || win->out_y > yres) | |
8b08cf2b ID |
742 | return -EINVAL; |
743 | ||
744 | if (!fbdev->ctrl->update_window || | |
745 | fbdev->ctrl->get_update_mode() != OMAPFB_MANUAL_UPDATE) | |
746 | return -ENODEV; | |
747 | ||
2f21a62f RV |
748 | if (win->x + win->width > xres) |
749 | win->width = xres - win->x; | |
750 | if (win->y + win->height > yres) | |
751 | win->height = yres - win->y; | |
752 | if (win->out_x + win->out_width > xres) | |
753 | win->out_width = xres - win->out_x; | |
754 | if (win->out_y + win->out_height > yres) | |
755 | win->out_height = yres - win->out_y; | |
8b08cf2b ID |
756 | if (!win->width || !win->height || !win->out_width || !win->out_height) |
757 | return 0; | |
758 | ||
759 | return fbdev->ctrl->update_window(fbi, win, callback, callback_data); | |
760 | } | |
761 | EXPORT_SYMBOL(omapfb_update_window_async); | |
762 | ||
763 | static int omapfb_update_win(struct fb_info *fbi, | |
764 | struct omapfb_update_window *win) | |
765 | { | |
766 | struct omapfb_plane_struct *plane = fbi->par; | |
767 | int ret; | |
768 | ||
769 | omapfb_rqueue_lock(plane->fbdev); | |
c0fc18c5 | 770 | ret = omapfb_update_window_async(fbi, win, NULL, NULL); |
8b08cf2b ID |
771 | omapfb_rqueue_unlock(plane->fbdev); |
772 | ||
773 | return ret; | |
774 | } | |
775 | ||
776 | static int omapfb_update_full_screen(struct fb_info *fbi) | |
777 | { | |
778 | struct omapfb_plane_struct *plane = fbi->par; | |
779 | struct omapfb_device *fbdev = plane->fbdev; | |
780 | struct omapfb_update_window win; | |
781 | int r; | |
782 | ||
783 | if (!fbdev->ctrl->update_window || | |
784 | fbdev->ctrl->get_update_mode() != OMAPFB_MANUAL_UPDATE) | |
785 | return -ENODEV; | |
786 | ||
787 | win.x = 0; | |
788 | win.y = 0; | |
789 | win.width = fbi->var.xres; | |
790 | win.height = fbi->var.yres; | |
791 | win.out_x = 0; | |
792 | win.out_y = 0; | |
793 | win.out_width = fbi->var.xres; | |
794 | win.out_height = fbi->var.yres; | |
795 | win.format = 0; | |
796 | ||
797 | omapfb_rqueue_lock(fbdev); | |
c0fc18c5 | 798 | r = fbdev->ctrl->update_window(fbi, &win, NULL, NULL); |
8b08cf2b ID |
799 | omapfb_rqueue_unlock(fbdev); |
800 | ||
801 | return r; | |
802 | } | |
803 | ||
804 | static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi) | |
805 | { | |
806 | struct omapfb_plane_struct *plane = fbi->par; | |
807 | struct omapfb_device *fbdev = plane->fbdev; | |
808 | struct lcd_panel *panel = fbdev->panel; | |
809 | struct omapfb_plane_info old_info; | |
810 | int r = 0; | |
811 | ||
812 | if (pi->pos_x + pi->out_width > panel->x_res || | |
813 | pi->pos_y + pi->out_height > panel->y_res) | |
814 | return -EINVAL; | |
815 | ||
816 | omapfb_rqueue_lock(fbdev); | |
817 | if (pi->enabled && !fbdev->mem_desc.region[plane->idx].size) { | |
818 | /* | |
819 | * This plane's memory was freed, can't enable it | |
820 | * until it's reallocated. | |
821 | */ | |
822 | r = -EINVAL; | |
823 | goto out; | |
824 | } | |
825 | old_info = plane->info; | |
826 | plane->info = *pi; | |
827 | if (pi->enabled) { | |
828 | r = ctrl_change_mode(fbi); | |
829 | if (r < 0) { | |
830 | plane->info = old_info; | |
831 | goto out; | |
832 | } | |
833 | } | |
834 | r = fbdev->ctrl->enable_plane(plane->idx, pi->enabled); | |
835 | if (r < 0) { | |
836 | plane->info = old_info; | |
837 | goto out; | |
838 | } | |
839 | out: | |
840 | omapfb_rqueue_unlock(fbdev); | |
841 | return r; | |
842 | } | |
843 | ||
844 | static int omapfb_query_plane(struct fb_info *fbi, struct omapfb_plane_info *pi) | |
845 | { | |
846 | struct omapfb_plane_struct *plane = fbi->par; | |
847 | ||
848 | *pi = plane->info; | |
849 | return 0; | |
850 | } | |
851 | ||
852 | static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi) | |
853 | { | |
854 | struct omapfb_plane_struct *plane = fbi->par; | |
855 | struct omapfb_device *fbdev = plane->fbdev; | |
856 | struct omapfb_mem_region *rg = &fbdev->mem_desc.region[plane->idx]; | |
857 | size_t size; | |
858 | int r = 0; | |
859 | ||
860 | if (fbdev->ctrl->setup_mem == NULL) | |
861 | return -ENODEV; | |
862 | if (mi->type > OMAPFB_MEMTYPE_MAX) | |
863 | return -EINVAL; | |
864 | ||
865 | size = PAGE_ALIGN(mi->size); | |
866 | omapfb_rqueue_lock(fbdev); | |
867 | if (plane->info.enabled) { | |
868 | r = -EBUSY; | |
869 | goto out; | |
870 | } | |
871 | if (rg->size != size || rg->type != mi->type) { | |
872 | struct fb_var_screeninfo *new_var = &fbdev->new_var; | |
873 | unsigned long old_size = rg->size; | |
874 | u8 old_type = rg->type; | |
875 | unsigned long paddr; | |
876 | ||
877 | rg->size = size; | |
878 | rg->type = mi->type; | |
879 | /* | |
880 | * size == 0 is a special case, for which we | |
881 | * don't check / adjust the screen parameters. | |
882 | * This isn't a problem since the plane can't | |
883 | * be reenabled unless its size is > 0. | |
884 | */ | |
885 | if (old_size != size && size) { | |
886 | if (size) { | |
887 | memcpy(new_var, &fbi->var, sizeof(*new_var)); | |
888 | r = set_fb_var(fbi, new_var); | |
889 | if (r < 0) | |
890 | goto out; | |
891 | } | |
892 | } | |
893 | ||
894 | if (fbdev->ctrl->sync) | |
895 | fbdev->ctrl->sync(); | |
896 | r = fbdev->ctrl->setup_mem(plane->idx, size, mi->type, &paddr); | |
897 | if (r < 0) { | |
898 | /* Revert changes. */ | |
899 | rg->size = old_size; | |
900 | rg->type = old_type; | |
901 | goto out; | |
902 | } | |
903 | rg->paddr = paddr; | |
904 | ||
905 | if (old_size != size) { | |
906 | if (size) { | |
907 | memcpy(&fbi->var, new_var, sizeof(fbi->var)); | |
908 | set_fb_fix(fbi); | |
909 | } else { | |
910 | /* | |
911 | * Set these explicitly to indicate that the | |
912 | * plane memory is dealloce'd, the other | |
913 | * screen parameters in var / fix are invalid. | |
914 | */ | |
537a1bf0 | 915 | mutex_lock(&fbi->mm_lock); |
8b08cf2b ID |
916 | fbi->fix.smem_start = 0; |
917 | fbi->fix.smem_len = 0; | |
537a1bf0 | 918 | mutex_unlock(&fbi->mm_lock); |
8b08cf2b ID |
919 | } |
920 | } | |
921 | } | |
922 | out: | |
923 | omapfb_rqueue_unlock(fbdev); | |
924 | ||
925 | return r; | |
926 | } | |
927 | ||
928 | static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi) | |
929 | { | |
930 | struct omapfb_plane_struct *plane = fbi->par; | |
931 | struct omapfb_device *fbdev = plane->fbdev; | |
932 | struct omapfb_mem_region *rg; | |
933 | ||
934 | rg = &fbdev->mem_desc.region[plane->idx]; | |
935 | memset(mi, 0, sizeof(*mi)); | |
936 | mi->size = rg->size; | |
937 | mi->type = rg->type; | |
938 | ||
939 | return 0; | |
940 | } | |
941 | ||
942 | static int omapfb_set_color_key(struct omapfb_device *fbdev, | |
943 | struct omapfb_color_key *ck) | |
944 | { | |
945 | int r; | |
946 | ||
947 | if (!fbdev->ctrl->set_color_key) | |
948 | return -ENODEV; | |
949 | ||
950 | omapfb_rqueue_lock(fbdev); | |
951 | r = fbdev->ctrl->set_color_key(ck); | |
952 | omapfb_rqueue_unlock(fbdev); | |
953 | ||
954 | return r; | |
955 | } | |
956 | ||
957 | static int omapfb_get_color_key(struct omapfb_device *fbdev, | |
958 | struct omapfb_color_key *ck) | |
959 | { | |
960 | int r; | |
961 | ||
962 | if (!fbdev->ctrl->get_color_key) | |
963 | return -ENODEV; | |
964 | ||
965 | omapfb_rqueue_lock(fbdev); | |
966 | r = fbdev->ctrl->get_color_key(ck); | |
967 | omapfb_rqueue_unlock(fbdev); | |
968 | ||
969 | return r; | |
970 | } | |
971 | ||
972 | static struct blocking_notifier_head omapfb_client_list[OMAPFB_PLANE_NUM]; | |
973 | static int notifier_inited; | |
974 | ||
975 | static void omapfb_init_notifier(void) | |
976 | { | |
977 | int i; | |
978 | ||
979 | for (i = 0; i < OMAPFB_PLANE_NUM; i++) | |
980 | BLOCKING_INIT_NOTIFIER_HEAD(&omapfb_client_list[i]); | |
981 | } | |
982 | ||
983 | int omapfb_register_client(struct omapfb_notifier_block *omapfb_nb, | |
984 | omapfb_notifier_callback_t callback, | |
985 | void *callback_data) | |
986 | { | |
987 | int r; | |
988 | ||
989 | if ((unsigned)omapfb_nb->plane_idx > OMAPFB_PLANE_NUM) | |
990 | return -EINVAL; | |
991 | ||
992 | if (!notifier_inited) { | |
993 | omapfb_init_notifier(); | |
994 | notifier_inited = 1; | |
995 | } | |
996 | ||
997 | omapfb_nb->nb.notifier_call = (int (*)(struct notifier_block *, | |
998 | unsigned long, void *))callback; | |
999 | omapfb_nb->data = callback_data; | |
1000 | r = blocking_notifier_chain_register( | |
1001 | &omapfb_client_list[omapfb_nb->plane_idx], | |
1002 | &omapfb_nb->nb); | |
1003 | if (r) | |
1004 | return r; | |
1005 | if (omapfb_dev != NULL && | |
1006 | omapfb_dev->ctrl && omapfb_dev->ctrl->bind_client) { | |
1007 | omapfb_dev->ctrl->bind_client(omapfb_nb); | |
1008 | } | |
1009 | ||
1010 | return 0; | |
1011 | } | |
1012 | EXPORT_SYMBOL(omapfb_register_client); | |
1013 | ||
1014 | int omapfb_unregister_client(struct omapfb_notifier_block *omapfb_nb) | |
1015 | { | |
1016 | return blocking_notifier_chain_unregister( | |
1017 | &omapfb_client_list[omapfb_nb->plane_idx], &omapfb_nb->nb); | |
1018 | } | |
1019 | EXPORT_SYMBOL(omapfb_unregister_client); | |
1020 | ||
1021 | void omapfb_notify_clients(struct omapfb_device *fbdev, unsigned long event) | |
1022 | { | |
1023 | int i; | |
1024 | ||
1025 | if (!notifier_inited) | |
1026 | /* no client registered yet */ | |
1027 | return; | |
1028 | ||
1029 | for (i = 0; i < OMAPFB_PLANE_NUM; i++) | |
1030 | blocking_notifier_call_chain(&omapfb_client_list[i], event, | |
1031 | fbdev->fb_info[i]); | |
1032 | } | |
1033 | EXPORT_SYMBOL(omapfb_notify_clients); | |
1034 | ||
1035 | static int omapfb_set_update_mode(struct omapfb_device *fbdev, | |
1036 | enum omapfb_update_mode mode) | |
1037 | { | |
1038 | int r; | |
1039 | ||
1040 | omapfb_rqueue_lock(fbdev); | |
1041 | r = fbdev->ctrl->set_update_mode(mode); | |
1042 | omapfb_rqueue_unlock(fbdev); | |
1043 | ||
1044 | return r; | |
1045 | } | |
1046 | ||
1047 | static enum omapfb_update_mode omapfb_get_update_mode(struct omapfb_device *fbdev) | |
1048 | { | |
1049 | int r; | |
1050 | ||
1051 | omapfb_rqueue_lock(fbdev); | |
1052 | r = fbdev->ctrl->get_update_mode(); | |
1053 | omapfb_rqueue_unlock(fbdev); | |
1054 | ||
1055 | return r; | |
1056 | } | |
1057 | ||
1058 | static void omapfb_get_caps(struct omapfb_device *fbdev, int plane, | |
1059 | struct omapfb_caps *caps) | |
1060 | { | |
1061 | memset(caps, 0, sizeof(*caps)); | |
1062 | fbdev->ctrl->get_caps(plane, caps); | |
1063 | caps->ctrl |= fbdev->panel->get_caps(fbdev->panel); | |
1064 | } | |
1065 | ||
1066 | /* For lcd testing */ | |
1067 | void omapfb_write_first_pixel(struct omapfb_device *fbdev, u16 pixval) | |
1068 | { | |
1069 | omapfb_rqueue_lock(fbdev); | |
1070 | *(u16 *)fbdev->mem_desc.region[0].vaddr = pixval; | |
1071 | if (fbdev->ctrl->get_update_mode() == OMAPFB_MANUAL_UPDATE) { | |
1072 | struct omapfb_update_window win; | |
1073 | ||
1074 | memset(&win, 0, sizeof(win)); | |
1075 | win.width = 2; | |
1076 | win.height = 2; | |
1077 | win.out_width = 2; | |
1078 | win.out_height = 2; | |
c0fc18c5 | 1079 | fbdev->ctrl->update_window(fbdev->fb_info[0], &win, NULL, NULL); |
8b08cf2b ID |
1080 | } |
1081 | omapfb_rqueue_unlock(fbdev); | |
1082 | } | |
1083 | EXPORT_SYMBOL(omapfb_write_first_pixel); | |
1084 | ||
1085 | /* | |
1086 | * Ioctl interface. Part of the kernel mode frame buffer API is duplicated | |
1087 | * here to be accessible by user mode code. | |
1088 | */ | |
1089 | static int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, | |
1090 | unsigned long arg) | |
1091 | { | |
1092 | struct omapfb_plane_struct *plane = fbi->par; | |
1093 | struct omapfb_device *fbdev = plane->fbdev; | |
1094 | struct fb_ops *ops = fbi->fbops; | |
1095 | union { | |
1096 | struct omapfb_update_window update_window; | |
1097 | struct omapfb_plane_info plane_info; | |
1098 | struct omapfb_mem_info mem_info; | |
1099 | struct omapfb_color_key color_key; | |
1100 | enum omapfb_update_mode update_mode; | |
1101 | struct omapfb_caps caps; | |
1102 | unsigned int mirror; | |
1103 | int plane_out; | |
1104 | int enable_plane; | |
1105 | } p; | |
1106 | int r = 0; | |
1107 | ||
1108 | BUG_ON(!ops); | |
1109 | switch (cmd) { | |
1110 | case OMAPFB_MIRROR: | |
1111 | if (get_user(p.mirror, (int __user *)arg)) | |
1112 | r = -EFAULT; | |
1113 | else | |
1114 | omapfb_mirror(fbi, p.mirror); | |
1115 | break; | |
1116 | case OMAPFB_SYNC_GFX: | |
1117 | omapfb_sync(fbi); | |
1118 | break; | |
1119 | case OMAPFB_VSYNC: | |
1120 | break; | |
1121 | case OMAPFB_SET_UPDATE_MODE: | |
1122 | if (get_user(p.update_mode, (int __user *)arg)) | |
1123 | r = -EFAULT; | |
1124 | else | |
1125 | r = omapfb_set_update_mode(fbdev, p.update_mode); | |
1126 | break; | |
1127 | case OMAPFB_GET_UPDATE_MODE: | |
1128 | p.update_mode = omapfb_get_update_mode(fbdev); | |
1129 | if (put_user(p.update_mode, | |
1130 | (enum omapfb_update_mode __user *)arg)) | |
1131 | r = -EFAULT; | |
1132 | break; | |
1133 | case OMAPFB_UPDATE_WINDOW_OLD: | |
1134 | if (copy_from_user(&p.update_window, (void __user *)arg, | |
1135 | sizeof(struct omapfb_update_window_old))) | |
1136 | r = -EFAULT; | |
1137 | else { | |
1138 | struct omapfb_update_window *u = &p.update_window; | |
1139 | u->out_x = u->x; | |
1140 | u->out_y = u->y; | |
1141 | u->out_width = u->width; | |
1142 | u->out_height = u->height; | |
1143 | memset(u->reserved, 0, sizeof(u->reserved)); | |
1144 | r = omapfb_update_win(fbi, u); | |
1145 | } | |
1146 | break; | |
1147 | case OMAPFB_UPDATE_WINDOW: | |
1148 | if (copy_from_user(&p.update_window, (void __user *)arg, | |
1149 | sizeof(p.update_window))) | |
1150 | r = -EFAULT; | |
1151 | else | |
1152 | r = omapfb_update_win(fbi, &p.update_window); | |
1153 | break; | |
1154 | case OMAPFB_SETUP_PLANE: | |
1155 | if (copy_from_user(&p.plane_info, (void __user *)arg, | |
1156 | sizeof(p.plane_info))) | |
1157 | r = -EFAULT; | |
1158 | else | |
1159 | r = omapfb_setup_plane(fbi, &p.plane_info); | |
1160 | break; | |
1161 | case OMAPFB_QUERY_PLANE: | |
1162 | if ((r = omapfb_query_plane(fbi, &p.plane_info)) < 0) | |
1163 | break; | |
1164 | if (copy_to_user((void __user *)arg, &p.plane_info, | |
1165 | sizeof(p.plane_info))) | |
1166 | r = -EFAULT; | |
1167 | break; | |
1168 | case OMAPFB_SETUP_MEM: | |
1169 | if (copy_from_user(&p.mem_info, (void __user *)arg, | |
1170 | sizeof(p.mem_info))) | |
1171 | r = -EFAULT; | |
1172 | else | |
1173 | r = omapfb_setup_mem(fbi, &p.mem_info); | |
1174 | break; | |
1175 | case OMAPFB_QUERY_MEM: | |
1176 | if ((r = omapfb_query_mem(fbi, &p.mem_info)) < 0) | |
1177 | break; | |
1178 | if (copy_to_user((void __user *)arg, &p.mem_info, | |
1179 | sizeof(p.mem_info))) | |
1180 | r = -EFAULT; | |
1181 | break; | |
1182 | case OMAPFB_SET_COLOR_KEY: | |
1183 | if (copy_from_user(&p.color_key, (void __user *)arg, | |
1184 | sizeof(p.color_key))) | |
1185 | r = -EFAULT; | |
1186 | else | |
1187 | r = omapfb_set_color_key(fbdev, &p.color_key); | |
1188 | break; | |
1189 | case OMAPFB_GET_COLOR_KEY: | |
1190 | if ((r = omapfb_get_color_key(fbdev, &p.color_key)) < 0) | |
1191 | break; | |
1192 | if (copy_to_user((void __user *)arg, &p.color_key, | |
1193 | sizeof(p.color_key))) | |
1194 | r = -EFAULT; | |
1195 | break; | |
1196 | case OMAPFB_GET_CAPS: | |
1197 | omapfb_get_caps(fbdev, plane->idx, &p.caps); | |
1198 | if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps))) | |
1199 | r = -EFAULT; | |
1200 | break; | |
1201 | case OMAPFB_LCD_TEST: | |
1202 | { | |
1203 | int test_num; | |
1204 | ||
1205 | if (get_user(test_num, (int __user *)arg)) { | |
1206 | r = -EFAULT; | |
1207 | break; | |
1208 | } | |
1209 | if (!fbdev->panel->run_test) { | |
1210 | r = -EINVAL; | |
1211 | break; | |
1212 | } | |
1213 | r = fbdev->panel->run_test(fbdev->panel, test_num); | |
1214 | break; | |
1215 | } | |
1216 | case OMAPFB_CTRL_TEST: | |
1217 | { | |
1218 | int test_num; | |
1219 | ||
1220 | if (get_user(test_num, (int __user *)arg)) { | |
1221 | r = -EFAULT; | |
1222 | break; | |
1223 | } | |
1224 | if (!fbdev->ctrl->run_test) { | |
1225 | r = -EINVAL; | |
1226 | break; | |
1227 | } | |
1228 | r = fbdev->ctrl->run_test(test_num); | |
1229 | break; | |
1230 | } | |
1231 | default: | |
1232 | r = -EINVAL; | |
1233 | } | |
1234 | ||
1235 | return r; | |
1236 | } | |
1237 | ||
1238 | static int omapfb_mmap(struct fb_info *info, struct vm_area_struct *vma) | |
1239 | { | |
1240 | struct omapfb_plane_struct *plane = info->par; | |
1241 | struct omapfb_device *fbdev = plane->fbdev; | |
1242 | int r; | |
1243 | ||
1244 | omapfb_rqueue_lock(fbdev); | |
1245 | r = fbdev->ctrl->mmap(info, vma); | |
1246 | omapfb_rqueue_unlock(fbdev); | |
1247 | ||
1248 | return r; | |
1249 | } | |
1250 | ||
1251 | /* | |
1252 | * Callback table for the frame buffer framework. Some of these pointers | |
1253 | * will be changed according to the current setting of fb_info->accel_flags. | |
1254 | */ | |
1255 | static struct fb_ops omapfb_ops = { | |
1256 | .owner = THIS_MODULE, | |
1257 | .fb_open = omapfb_open, | |
1258 | .fb_release = omapfb_release, | |
1259 | .fb_setcolreg = omapfb_setcolreg, | |
1260 | .fb_setcmap = omapfb_setcmap, | |
1261 | .fb_fillrect = cfb_fillrect, | |
1262 | .fb_copyarea = cfb_copyarea, | |
1263 | .fb_imageblit = cfb_imageblit, | |
1264 | .fb_blank = omapfb_blank, | |
1265 | .fb_ioctl = omapfb_ioctl, | |
1266 | .fb_check_var = omapfb_check_var, | |
1267 | .fb_set_par = omapfb_set_par, | |
1268 | .fb_rotate = omapfb_rotate, | |
1269 | .fb_pan_display = omapfb_pan_display, | |
1270 | }; | |
1271 | ||
1272 | /* | |
1273 | * --------------------------------------------------------------------------- | |
1274 | * Sysfs interface | |
1275 | * --------------------------------------------------------------------------- | |
1276 | */ | |
1277 | /* omapfbX sysfs entries */ | |
1278 | static ssize_t omapfb_show_caps_num(struct device *dev, | |
1279 | struct device_attribute *attr, char *buf) | |
1280 | { | |
5e9a8bd6 | 1281 | struct omapfb_device *fbdev = dev_get_drvdata(dev); |
8b08cf2b ID |
1282 | int plane; |
1283 | size_t size; | |
1284 | struct omapfb_caps caps; | |
1285 | ||
1286 | plane = 0; | |
1287 | size = 0; | |
1288 | while (size < PAGE_SIZE && plane < OMAPFB_PLANE_NUM) { | |
1289 | omapfb_get_caps(fbdev, plane, &caps); | |
1290 | size += snprintf(&buf[size], PAGE_SIZE - size, | |
1291 | "plane#%d %#010x %#010x %#010x\n", | |
1292 | plane, caps.ctrl, caps.plane_color, caps.wnd_color); | |
1293 | plane++; | |
1294 | } | |
1295 | return size; | |
1296 | } | |
1297 | ||
1298 | static ssize_t omapfb_show_caps_text(struct device *dev, | |
1299 | struct device_attribute *attr, char *buf) | |
1300 | { | |
5e9a8bd6 | 1301 | struct omapfb_device *fbdev = dev_get_drvdata(dev); |
8b08cf2b ID |
1302 | int i; |
1303 | struct omapfb_caps caps; | |
1304 | int plane; | |
1305 | size_t size; | |
1306 | ||
1307 | plane = 0; | |
1308 | size = 0; | |
1309 | while (size < PAGE_SIZE && plane < OMAPFB_PLANE_NUM) { | |
1310 | omapfb_get_caps(fbdev, plane, &caps); | |
1311 | size += snprintf(&buf[size], PAGE_SIZE - size, | |
1312 | "plane#%d:\n", plane); | |
1313 | for (i = 0; i < ARRAY_SIZE(ctrl_caps) && | |
1314 | size < PAGE_SIZE; i++) { | |
1315 | if (ctrl_caps[i].flag & caps.ctrl) | |
1316 | size += snprintf(&buf[size], PAGE_SIZE - size, | |
1317 | " %s\n", ctrl_caps[i].name); | |
1318 | } | |
1319 | size += snprintf(&buf[size], PAGE_SIZE - size, | |
1320 | " plane colors:\n"); | |
1321 | for (i = 0; i < ARRAY_SIZE(color_caps) && | |
1322 | size < PAGE_SIZE; i++) { | |
1323 | if (color_caps[i].flag & caps.plane_color) | |
1324 | size += snprintf(&buf[size], PAGE_SIZE - size, | |
1325 | " %s\n", color_caps[i].name); | |
1326 | } | |
1327 | size += snprintf(&buf[size], PAGE_SIZE - size, | |
1328 | " window colors:\n"); | |
1329 | for (i = 0; i < ARRAY_SIZE(color_caps) && | |
1330 | size < PAGE_SIZE; i++) { | |
1331 | if (color_caps[i].flag & caps.wnd_color) | |
1332 | size += snprintf(&buf[size], PAGE_SIZE - size, | |
1333 | " %s\n", color_caps[i].name); | |
1334 | } | |
1335 | ||
1336 | plane++; | |
1337 | } | |
1338 | return size; | |
1339 | } | |
1340 | ||
1341 | static DEVICE_ATTR(caps_num, 0444, omapfb_show_caps_num, NULL); | |
1342 | static DEVICE_ATTR(caps_text, 0444, omapfb_show_caps_text, NULL); | |
1343 | ||
1344 | /* panel sysfs entries */ | |
1345 | static ssize_t omapfb_show_panel_name(struct device *dev, | |
1346 | struct device_attribute *attr, char *buf) | |
1347 | { | |
5e9a8bd6 | 1348 | struct omapfb_device *fbdev = dev_get_drvdata(dev); |
8b08cf2b ID |
1349 | |
1350 | return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->panel->name); | |
1351 | } | |
1352 | ||
1353 | static ssize_t omapfb_show_bklight_level(struct device *dev, | |
1354 | struct device_attribute *attr, | |
1355 | char *buf) | |
1356 | { | |
5e9a8bd6 | 1357 | struct omapfb_device *fbdev = dev_get_drvdata(dev); |
8b08cf2b ID |
1358 | int r; |
1359 | ||
1360 | if (fbdev->panel->get_bklight_level) { | |
1361 | r = snprintf(buf, PAGE_SIZE, "%d\n", | |
1362 | fbdev->panel->get_bklight_level(fbdev->panel)); | |
1363 | } else | |
1364 | r = -ENODEV; | |
1365 | return r; | |
1366 | } | |
1367 | ||
1368 | static ssize_t omapfb_store_bklight_level(struct device *dev, | |
1369 | struct device_attribute *attr, | |
1370 | const char *buf, size_t size) | |
1371 | { | |
5e9a8bd6 | 1372 | struct omapfb_device *fbdev = dev_get_drvdata(dev); |
8b08cf2b ID |
1373 | int r; |
1374 | ||
1375 | if (fbdev->panel->set_bklight_level) { | |
1376 | unsigned int level; | |
1377 | ||
1378 | if (sscanf(buf, "%10d", &level) == 1) { | |
1379 | r = fbdev->panel->set_bklight_level(fbdev->panel, | |
1380 | level); | |
1381 | } else | |
1382 | r = -EINVAL; | |
1383 | } else | |
1384 | r = -ENODEV; | |
1385 | return r ? r : size; | |
1386 | } | |
1387 | ||
1388 | static ssize_t omapfb_show_bklight_max(struct device *dev, | |
1389 | struct device_attribute *attr, char *buf) | |
1390 | { | |
5e9a8bd6 | 1391 | struct omapfb_device *fbdev = dev_get_drvdata(dev); |
8b08cf2b ID |
1392 | int r; |
1393 | ||
1394 | if (fbdev->panel->get_bklight_level) { | |
1395 | r = snprintf(buf, PAGE_SIZE, "%d\n", | |
1396 | fbdev->panel->get_bklight_max(fbdev->panel)); | |
1397 | } else | |
1398 | r = -ENODEV; | |
1399 | return r; | |
1400 | } | |
1401 | ||
1402 | static struct device_attribute dev_attr_panel_name = | |
1403 | __ATTR(name, 0444, omapfb_show_panel_name, NULL); | |
1404 | static DEVICE_ATTR(backlight_level, 0664, | |
1405 | omapfb_show_bklight_level, omapfb_store_bklight_level); | |
1406 | static DEVICE_ATTR(backlight_max, 0444, omapfb_show_bklight_max, NULL); | |
1407 | ||
1408 | static struct attribute *panel_attrs[] = { | |
1409 | &dev_attr_panel_name.attr, | |
1410 | &dev_attr_backlight_level.attr, | |
1411 | &dev_attr_backlight_max.attr, | |
1412 | NULL, | |
1413 | }; | |
1414 | ||
1415 | static struct attribute_group panel_attr_grp = { | |
1416 | .name = "panel", | |
1417 | .attrs = panel_attrs, | |
1418 | }; | |
1419 | ||
1420 | /* ctrl sysfs entries */ | |
1421 | static ssize_t omapfb_show_ctrl_name(struct device *dev, | |
1422 | struct device_attribute *attr, char *buf) | |
1423 | { | |
5e9a8bd6 | 1424 | struct omapfb_device *fbdev = dev_get_drvdata(dev); |
8b08cf2b ID |
1425 | |
1426 | return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->ctrl->name); | |
1427 | } | |
1428 | ||
1429 | static struct device_attribute dev_attr_ctrl_name = | |
1430 | __ATTR(name, 0444, omapfb_show_ctrl_name, NULL); | |
1431 | ||
1432 | static struct attribute *ctrl_attrs[] = { | |
1433 | &dev_attr_ctrl_name.attr, | |
1434 | NULL, | |
1435 | }; | |
1436 | ||
1437 | static struct attribute_group ctrl_attr_grp = { | |
1438 | .name = "ctrl", | |
1439 | .attrs = ctrl_attrs, | |
1440 | }; | |
1441 | ||
1442 | static int omapfb_register_sysfs(struct omapfb_device *fbdev) | |
1443 | { | |
1444 | int r; | |
1445 | ||
1446 | if ((r = device_create_file(fbdev->dev, &dev_attr_caps_num))) | |
1447 | goto fail0; | |
1448 | ||
1449 | if ((r = device_create_file(fbdev->dev, &dev_attr_caps_text))) | |
1450 | goto fail1; | |
1451 | ||
1452 | if ((r = sysfs_create_group(&fbdev->dev->kobj, &panel_attr_grp))) | |
1453 | goto fail2; | |
1454 | ||
1455 | if ((r = sysfs_create_group(&fbdev->dev->kobj, &ctrl_attr_grp))) | |
1456 | goto fail3; | |
1457 | ||
1458 | return 0; | |
1459 | fail3: | |
1460 | sysfs_remove_group(&fbdev->dev->kobj, &panel_attr_grp); | |
1461 | fail2: | |
1462 | device_remove_file(fbdev->dev, &dev_attr_caps_text); | |
1463 | fail1: | |
1464 | device_remove_file(fbdev->dev, &dev_attr_caps_num); | |
1465 | fail0: | |
1466 | dev_err(fbdev->dev, "unable to register sysfs interface\n"); | |
1467 | return r; | |
1468 | } | |
1469 | ||
1470 | static void omapfb_unregister_sysfs(struct omapfb_device *fbdev) | |
1471 | { | |
1472 | sysfs_remove_group(&fbdev->dev->kobj, &ctrl_attr_grp); | |
1473 | sysfs_remove_group(&fbdev->dev->kobj, &panel_attr_grp); | |
1474 | device_remove_file(fbdev->dev, &dev_attr_caps_num); | |
1475 | device_remove_file(fbdev->dev, &dev_attr_caps_text); | |
1476 | } | |
1477 | ||
1478 | /* | |
1479 | * --------------------------------------------------------------------------- | |
1480 | * LDM callbacks | |
1481 | * --------------------------------------------------------------------------- | |
1482 | */ | |
1483 | /* Initialize system fb_info object and set the default video mode. | |
1484 | * The frame buffer memory already allocated by lcddma_init | |
1485 | */ | |
1486 | static int fbinfo_init(struct omapfb_device *fbdev, struct fb_info *info) | |
1487 | { | |
1488 | struct fb_var_screeninfo *var = &info->var; | |
1489 | struct fb_fix_screeninfo *fix = &info->fix; | |
1490 | int r = 0; | |
1491 | ||
1492 | info->fbops = &omapfb_ops; | |
1493 | info->flags = FBINFO_FLAG_DEFAULT; | |
1494 | ||
1495 | strncpy(fix->id, MODULE_NAME, sizeof(fix->id)); | |
1496 | ||
1497 | info->pseudo_palette = fbdev->pseudo_palette; | |
1498 | ||
1499 | var->accel_flags = def_accel ? FB_ACCELF_TEXT : 0; | |
1500 | var->xres = def_vxres; | |
1501 | var->yres = def_vyres; | |
1502 | var->xres_virtual = def_vxres; | |
1503 | var->yres_virtual = def_vyres; | |
1504 | var->rotate = def_rotate; | |
1505 | var->bits_per_pixel = fbdev->panel->bpp; | |
1506 | ||
1507 | set_fb_var(info, var); | |
1508 | set_fb_fix(info); | |
1509 | ||
1510 | r = fb_alloc_cmap(&info->cmap, 16, 0); | |
1511 | if (r != 0) | |
1512 | dev_err(fbdev->dev, "unable to allocate color map memory\n"); | |
1513 | ||
1514 | return r; | |
1515 | } | |
1516 | ||
1517 | /* Release the fb_info object */ | |
1518 | static void fbinfo_cleanup(struct omapfb_device *fbdev, struct fb_info *fbi) | |
1519 | { | |
1520 | fb_dealloc_cmap(&fbi->cmap); | |
1521 | } | |
1522 | ||
1523 | static void planes_cleanup(struct omapfb_device *fbdev) | |
1524 | { | |
1525 | int i; | |
1526 | ||
1527 | for (i = 0; i < fbdev->mem_desc.region_cnt; i++) { | |
1528 | if (fbdev->fb_info[i] == NULL) | |
1529 | break; | |
1530 | fbinfo_cleanup(fbdev, fbdev->fb_info[i]); | |
1531 | framebuffer_release(fbdev->fb_info[i]); | |
1532 | } | |
1533 | } | |
1534 | ||
1535 | static int planes_init(struct omapfb_device *fbdev) | |
1536 | { | |
1537 | struct fb_info *fbi; | |
1538 | int i; | |
1539 | int r; | |
1540 | ||
1541 | for (i = 0; i < fbdev->mem_desc.region_cnt; i++) { | |
1542 | struct omapfb_plane_struct *plane; | |
1543 | fbi = framebuffer_alloc(sizeof(struct omapfb_plane_struct), | |
1544 | fbdev->dev); | |
1545 | if (fbi == NULL) { | |
1546 | dev_err(fbdev->dev, | |
1547 | "unable to allocate memory for plane info\n"); | |
1548 | planes_cleanup(fbdev); | |
1549 | return -ENOMEM; | |
1550 | } | |
1551 | plane = fbi->par; | |
1552 | plane->idx = i; | |
1553 | plane->fbdev = fbdev; | |
1554 | plane->info.mirror = def_mirror; | |
1555 | fbdev->fb_info[i] = fbi; | |
1556 | ||
1557 | if ((r = fbinfo_init(fbdev, fbi)) < 0) { | |
1558 | framebuffer_release(fbi); | |
1559 | planes_cleanup(fbdev); | |
1560 | return r; | |
1561 | } | |
1562 | plane->info.out_width = fbi->var.xres; | |
1563 | plane->info.out_height = fbi->var.yres; | |
1564 | } | |
1565 | return 0; | |
1566 | } | |
1567 | ||
1568 | /* | |
1569 | * Free driver resources. Can be called to rollback an aborted initialization | |
1570 | * sequence. | |
1571 | */ | |
1572 | static void omapfb_free_resources(struct omapfb_device *fbdev, int state) | |
1573 | { | |
1574 | int i; | |
1575 | ||
1576 | switch (state) { | |
1577 | case OMAPFB_ACTIVE: | |
1578 | for (i = 0; i < fbdev->mem_desc.region_cnt; i++) | |
1579 | unregister_framebuffer(fbdev->fb_info[i]); | |
1580 | case 7: | |
1581 | omapfb_unregister_sysfs(fbdev); | |
1582 | case 6: | |
1583 | fbdev->panel->disable(fbdev->panel); | |
1584 | case 5: | |
1585 | omapfb_set_update_mode(fbdev, OMAPFB_UPDATE_DISABLED); | |
1586 | case 4: | |
1587 | planes_cleanup(fbdev); | |
1588 | case 3: | |
1589 | ctrl_cleanup(fbdev); | |
1590 | case 2: | |
1591 | fbdev->panel->cleanup(fbdev->panel); | |
1592 | case 1: | |
1593 | dev_set_drvdata(fbdev->dev, NULL); | |
1594 | kfree(fbdev); | |
1595 | case 0: | |
1596 | /* nothing to free */ | |
1597 | break; | |
1598 | default: | |
1599 | BUG(); | |
1600 | } | |
1601 | } | |
1602 | ||
1603 | static int omapfb_find_ctrl(struct omapfb_device *fbdev) | |
1604 | { | |
1605 | struct omapfb_platform_data *conf; | |
1606 | char name[17]; | |
1607 | int i; | |
1608 | ||
1609 | conf = fbdev->dev->platform_data; | |
1610 | ||
1611 | fbdev->ctrl = NULL; | |
1612 | ||
1613 | strncpy(name, conf->lcd.ctrl_name, sizeof(name) - 1); | |
1614 | name[sizeof(name) - 1] = '\0'; | |
1615 | ||
1616 | if (strcmp(name, "internal") == 0) { | |
1617 | fbdev->ctrl = fbdev->int_ctrl; | |
1618 | return 0; | |
1619 | } | |
1620 | ||
1621 | for (i = 0; i < ARRAY_SIZE(ctrls); i++) { | |
1622 | dev_dbg(fbdev->dev, "ctrl %s\n", ctrls[i]->name); | |
1623 | if (strcmp(ctrls[i]->name, name) == 0) { | |
1624 | fbdev->ctrl = ctrls[i]; | |
1625 | break; | |
1626 | } | |
1627 | } | |
1628 | ||
1629 | if (fbdev->ctrl == NULL) { | |
1630 | dev_dbg(fbdev->dev, "ctrl %s not supported\n", name); | |
1631 | return -1; | |
1632 | } | |
1633 | ||
1634 | return 0; | |
1635 | } | |
1636 | ||
1637 | static void check_required_callbacks(struct omapfb_device *fbdev) | |
1638 | { | |
1639 | #define _C(x) (fbdev->ctrl->x != NULL) | |
1640 | #define _P(x) (fbdev->panel->x != NULL) | |
1641 | BUG_ON(fbdev->ctrl == NULL || fbdev->panel == NULL); | |
1642 | BUG_ON(!(_C(init) && _C(cleanup) && _C(get_caps) && | |
1643 | _C(set_update_mode) && _C(setup_plane) && _C(enable_plane) && | |
1644 | _P(init) && _P(cleanup) && _P(enable) && _P(disable) && | |
1645 | _P(get_caps))); | |
1646 | #undef _P | |
1647 | #undef _C | |
1648 | } | |
1649 | ||
1650 | /* | |
1651 | * Called by LDM binding to probe and attach a new device. | |
1652 | * Initialization sequence: | |
1653 | * 1. allocate system omapfb_device structure | |
1654 | * 2. select controller type according to platform configuration | |
1655 | * init LCD panel | |
1656 | * 3. init LCD controller and LCD DMA | |
1657 | * 4. init system fb_info structure for all planes | |
1658 | * 5. setup video mode for first plane and enable it | |
1659 | * 6. enable LCD panel | |
1660 | * 7. register sysfs attributes | |
1661 | * OMAPFB_ACTIVE: register system fb_info structure for all planes | |
1662 | */ | |
1663 | static int omapfb_do_probe(struct platform_device *pdev, | |
1664 | struct lcd_panel *panel) | |
1665 | { | |
1666 | struct omapfb_device *fbdev = NULL; | |
1667 | int init_state; | |
1668 | unsigned long phz, hhz, vhz; | |
1669 | unsigned long vram; | |
1670 | int i; | |
1671 | int r = 0; | |
1672 | ||
1673 | init_state = 0; | |
1674 | ||
1675 | if (pdev->num_resources != 0) { | |
1676 | dev_err(&pdev->dev, "probed for an unknown device\n"); | |
1677 | r = -ENODEV; | |
1678 | goto cleanup; | |
1679 | } | |
1680 | ||
1681 | if (pdev->dev.platform_data == NULL) { | |
1682 | dev_err(&pdev->dev, "missing platform data\n"); | |
1683 | r = -ENOENT; | |
1684 | goto cleanup; | |
1685 | } | |
1686 | ||
1687 | fbdev = kzalloc(sizeof(struct omapfb_device), GFP_KERNEL); | |
1688 | if (fbdev == NULL) { | |
1689 | dev_err(&pdev->dev, | |
1690 | "unable to allocate memory for device info\n"); | |
1691 | r = -ENOMEM; | |
1692 | goto cleanup; | |
1693 | } | |
1694 | init_state++; | |
1695 | ||
1696 | fbdev->dev = &pdev->dev; | |
1697 | fbdev->panel = panel; | |
1698 | platform_set_drvdata(pdev, fbdev); | |
1699 | ||
1700 | mutex_init(&fbdev->rqueue_mutex); | |
1701 | ||
1702 | #ifdef CONFIG_ARCH_OMAP1 | |
1703 | fbdev->int_ctrl = &omap1_int_ctrl; | |
1704 | #ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL | |
1705 | fbdev->ext_if = &omap1_ext_if; | |
1706 | #endif | |
1707 | #else /* OMAP2 */ | |
1708 | fbdev->int_ctrl = &omap2_int_ctrl; | |
1709 | #ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL | |
1710 | fbdev->ext_if = &omap2_ext_if; | |
1711 | #endif | |
1712 | #endif | |
1713 | if (omapfb_find_ctrl(fbdev) < 0) { | |
1714 | dev_err(fbdev->dev, | |
1715 | "LCD controller not found, board not supported\n"); | |
1716 | r = -ENODEV; | |
1717 | goto cleanup; | |
1718 | } | |
1719 | ||
1720 | r = fbdev->panel->init(fbdev->panel, fbdev); | |
1721 | if (r) | |
1722 | goto cleanup; | |
1723 | ||
1724 | pr_info("omapfb: configured for panel %s\n", fbdev->panel->name); | |
1725 | ||
1726 | def_vxres = def_vxres ? : fbdev->panel->x_res; | |
1727 | def_vyres = def_vyres ? : fbdev->panel->y_res; | |
1728 | ||
1729 | init_state++; | |
1730 | ||
1731 | r = ctrl_init(fbdev); | |
1732 | if (r) | |
1733 | goto cleanup; | |
1734 | if (fbdev->ctrl->mmap != NULL) | |
1735 | omapfb_ops.fb_mmap = omapfb_mmap; | |
1736 | init_state++; | |
1737 | ||
1738 | check_required_callbacks(fbdev); | |
1739 | ||
1740 | r = planes_init(fbdev); | |
1741 | if (r) | |
1742 | goto cleanup; | |
1743 | init_state++; | |
1744 | ||
1745 | #ifdef CONFIG_FB_OMAP_DMA_TUNE | |
1746 | /* Set DMA priority for EMIFF access to highest */ | |
1747 | if (cpu_class_is_omap1()) | |
1748 | omap_set_dma_priority(0, OMAP_DMA_PORT_EMIFF, 15); | |
1749 | #endif | |
1750 | ||
1751 | r = ctrl_change_mode(fbdev->fb_info[0]); | |
1752 | if (r) { | |
1753 | dev_err(fbdev->dev, "mode setting failed\n"); | |
1754 | goto cleanup; | |
1755 | } | |
1756 | ||
1757 | /* GFX plane is enabled by default */ | |
1758 | r = fbdev->ctrl->enable_plane(OMAPFB_PLANE_GFX, 1); | |
1759 | if (r) | |
1760 | goto cleanup; | |
1761 | ||
1762 | omapfb_set_update_mode(fbdev, manual_update ? | |
1763 | OMAPFB_MANUAL_UPDATE : OMAPFB_AUTO_UPDATE); | |
1764 | init_state++; | |
1765 | ||
1766 | r = fbdev->panel->enable(fbdev->panel); | |
1767 | if (r) | |
1768 | goto cleanup; | |
1769 | init_state++; | |
1770 | ||
1771 | r = omapfb_register_sysfs(fbdev); | |
1772 | if (r) | |
1773 | goto cleanup; | |
1774 | init_state++; | |
1775 | ||
1776 | vram = 0; | |
1777 | for (i = 0; i < fbdev->mem_desc.region_cnt; i++) { | |
1778 | r = register_framebuffer(fbdev->fb_info[i]); | |
1779 | if (r != 0) { | |
1780 | dev_err(fbdev->dev, | |
1781 | "registering framebuffer %d failed\n", i); | |
1782 | goto cleanup; | |
1783 | } | |
1784 | vram += fbdev->mem_desc.region[i].size; | |
1785 | } | |
1786 | ||
1787 | fbdev->state = OMAPFB_ACTIVE; | |
1788 | ||
1789 | panel = fbdev->panel; | |
1790 | phz = panel->pixel_clock * 1000; | |
1791 | hhz = phz * 10 / (panel->hfp + panel->x_res + panel->hbp + panel->hsw); | |
1792 | vhz = hhz / (panel->vfp + panel->y_res + panel->vbp + panel->vsw); | |
1793 | ||
1794 | omapfb_dev = fbdev; | |
1795 | ||
1796 | pr_info("omapfb: Framebuffer initialized. Total vram %lu planes %d\n", | |
1797 | vram, fbdev->mem_desc.region_cnt); | |
1798 | pr_info("omapfb: Pixclock %lu kHz hfreq %lu.%lu kHz " | |
1799 | "vfreq %lu.%lu Hz\n", | |
1800 | phz / 1000, hhz / 10000, hhz % 10, vhz / 10, vhz % 10); | |
1801 | ||
1802 | return 0; | |
1803 | ||
1804 | cleanup: | |
1805 | omapfb_free_resources(fbdev, init_state); | |
1806 | ||
1807 | return r; | |
1808 | } | |
1809 | ||
1810 | static int omapfb_probe(struct platform_device *pdev) | |
1811 | { | |
1812 | BUG_ON(fbdev_pdev != NULL); | |
1813 | ||
1814 | /* Delay actual initialization until the LCD is registered */ | |
1815 | fbdev_pdev = pdev; | |
1816 | if (fbdev_panel != NULL) | |
1817 | omapfb_do_probe(fbdev_pdev, fbdev_panel); | |
1818 | return 0; | |
1819 | } | |
1820 | ||
1821 | void omapfb_register_panel(struct lcd_panel *panel) | |
1822 | { | |
1823 | BUG_ON(fbdev_panel != NULL); | |
1824 | ||
1825 | fbdev_panel = panel; | |
1826 | if (fbdev_pdev != NULL) | |
1827 | omapfb_do_probe(fbdev_pdev, fbdev_panel); | |
1828 | } | |
1829 | ||
1830 | /* Called when the device is being detached from the driver */ | |
1831 | static int omapfb_remove(struct platform_device *pdev) | |
1832 | { | |
1833 | struct omapfb_device *fbdev = platform_get_drvdata(pdev); | |
1834 | enum omapfb_state saved_state = fbdev->state; | |
1835 | ||
1836 | /* FIXME: wait till completion of pending events */ | |
1837 | ||
1838 | fbdev->state = OMAPFB_DISABLED; | |
1839 | omapfb_free_resources(fbdev, saved_state); | |
1840 | ||
1841 | return 0; | |
1842 | } | |
1843 | ||
1844 | /* PM suspend */ | |
1845 | static int omapfb_suspend(struct platform_device *pdev, pm_message_t mesg) | |
1846 | { | |
1847 | struct omapfb_device *fbdev = platform_get_drvdata(pdev); | |
1848 | ||
c958557e | 1849 | omapfb_blank(FB_BLANK_POWERDOWN, fbdev->fb_info[0]); |
8b08cf2b ID |
1850 | |
1851 | return 0; | |
1852 | } | |
1853 | ||
1854 | /* PM resume */ | |
1855 | static int omapfb_resume(struct platform_device *pdev) | |
1856 | { | |
1857 | struct omapfb_device *fbdev = platform_get_drvdata(pdev); | |
1858 | ||
c958557e | 1859 | omapfb_blank(FB_BLANK_UNBLANK, fbdev->fb_info[0]); |
8b08cf2b ID |
1860 | return 0; |
1861 | } | |
1862 | ||
1863 | static struct platform_driver omapfb_driver = { | |
1864 | .probe = omapfb_probe, | |
1865 | .remove = omapfb_remove, | |
1866 | .suspend = omapfb_suspend, | |
1867 | .resume = omapfb_resume, | |
1868 | .driver = { | |
1869 | .name = MODULE_NAME, | |
1870 | .owner = THIS_MODULE, | |
1871 | }, | |
1872 | }; | |
1873 | ||
1874 | #ifndef MODULE | |
1875 | ||
1876 | /* Process kernel command line parameters */ | |
1877 | static int __init omapfb_setup(char *options) | |
1878 | { | |
1879 | char *this_opt = NULL; | |
1880 | int r = 0; | |
1881 | ||
1882 | pr_debug("omapfb: options %s\n", options); | |
1883 | ||
1884 | if (!options || !*options) | |
1885 | return 0; | |
1886 | ||
1887 | while (!r && (this_opt = strsep(&options, ",")) != NULL) { | |
1888 | if (!strncmp(this_opt, "accel", 5)) | |
1889 | def_accel = 1; | |
1890 | else if (!strncmp(this_opt, "vram:", 5)) { | |
1891 | char *suffix; | |
1892 | unsigned long vram; | |
1893 | vram = (simple_strtoul(this_opt + 5, &suffix, 0)); | |
1894 | switch (suffix[0]) { | |
1895 | case '\0': | |
1896 | break; | |
1897 | case 'm': | |
1898 | case 'M': | |
1899 | vram *= 1024; | |
1900 | /* Fall through */ | |
1901 | case 'k': | |
1902 | case 'K': | |
1903 | vram *= 1024; | |
1904 | break; | |
1905 | default: | |
1906 | pr_debug("omapfb: invalid vram suffix %c\n", | |
1907 | suffix[0]); | |
1908 | r = -1; | |
1909 | } | |
1910 | def_vram[def_vram_cnt++] = vram; | |
1911 | } | |
1912 | else if (!strncmp(this_opt, "vxres:", 6)) | |
1913 | def_vxres = simple_strtoul(this_opt + 6, NULL, 0); | |
1914 | else if (!strncmp(this_opt, "vyres:", 6)) | |
1915 | def_vyres = simple_strtoul(this_opt + 6, NULL, 0); | |
1916 | else if (!strncmp(this_opt, "rotate:", 7)) | |
1917 | def_rotate = (simple_strtoul(this_opt + 7, NULL, 0)); | |
1918 | else if (!strncmp(this_opt, "mirror:", 7)) | |
1919 | def_mirror = (simple_strtoul(this_opt + 7, NULL, 0)); | |
1920 | else if (!strncmp(this_opt, "manual_update", 13)) | |
1921 | manual_update = 1; | |
1922 | else { | |
1923 | pr_debug("omapfb: invalid option\n"); | |
1924 | r = -1; | |
1925 | } | |
1926 | } | |
1927 | ||
1928 | return r; | |
1929 | } | |
1930 | ||
1931 | #endif | |
1932 | ||
1933 | /* Register both the driver and the device */ | |
1934 | static int __init omapfb_init(void) | |
1935 | { | |
1936 | #ifndef MODULE | |
1937 | char *option; | |
1938 | ||
1939 | if (fb_get_options("omapfb", &option)) | |
1940 | return -ENODEV; | |
1941 | omapfb_setup(option); | |
1942 | #endif | |
1943 | /* Register the driver with LDM */ | |
1944 | if (platform_driver_register(&omapfb_driver)) { | |
1945 | pr_debug("failed to register omapfb driver\n"); | |
1946 | return -ENODEV; | |
1947 | } | |
1948 | ||
1949 | return 0; | |
1950 | } | |
1951 | ||
1952 | static void __exit omapfb_cleanup(void) | |
1953 | { | |
1954 | platform_driver_unregister(&omapfb_driver); | |
1955 | } | |
1956 | ||
1957 | module_param_named(accel, def_accel, uint, 0664); | |
1958 | module_param_array_named(vram, def_vram, ulong, &def_vram_cnt, 0664); | |
1959 | module_param_named(vxres, def_vxres, long, 0664); | |
1960 | module_param_named(vyres, def_vyres, long, 0664); | |
1961 | module_param_named(rotate, def_rotate, uint, 0664); | |
1962 | module_param_named(mirror, def_mirror, uint, 0664); | |
1963 | module_param_named(manual_update, manual_update, bool, 0664); | |
1964 | ||
1965 | module_init(omapfb_init); | |
1966 | module_exit(omapfb_cleanup); | |
1967 | ||
1968 | MODULE_DESCRIPTION("TI OMAP framebuffer driver"); | |
1969 | MODULE_AUTHOR("Imre Deak <imre.deak@nokia.com>"); | |
1970 | MODULE_LICENSE("GPL"); |