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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> |
5a0e3ad6 | 29 | #include <linux/slab.h> |
8b08cf2b | 30 | #include <linux/uaccess.h> |
355b200b | 31 | #include <linux/module.h> |
8b08cf2b | 32 | |
ce491cf8 | 33 | #include <plat/dma.h> |
8b08cf2b | 34 | |
91773a00 | 35 | #include "omapfb.h" |
7c8ad982 RK |
36 | #include "lcdc.h" |
37 | #include "dispc.h" | |
38 | ||
8b08cf2b ID |
39 | #define MODULE_NAME "omapfb" |
40 | ||
41 | static unsigned int def_accel; | |
42 | static unsigned long def_vram[OMAPFB_PLANE_NUM]; | |
7c8ad982 | 43 | static unsigned int def_vram_cnt; |
8b08cf2b ID |
44 | static unsigned long def_vxres; |
45 | static unsigned long def_vyres; | |
46 | static unsigned int def_rotate; | |
47 | static unsigned int def_mirror; | |
48 | ||
49 | #ifdef CONFIG_FB_OMAP_MANUAL_UPDATE | |
90ab5ee9 | 50 | static bool manual_update = 1; |
8b08cf2b | 51 | #else |
90ab5ee9 | 52 | static bool manual_update; |
8b08cf2b ID |
53 | #endif |
54 | ||
55 | static struct platform_device *fbdev_pdev; | |
56 | static struct lcd_panel *fbdev_panel; | |
57 | static struct omapfb_device *omapfb_dev; | |
58 | ||
59 | struct caps_table_struct { | |
60 | unsigned long flag; | |
61 | const char *name; | |
62 | }; | |
63 | ||
64 | static struct caps_table_struct ctrl_caps[] = { | |
65 | { OMAPFB_CAPS_MANUAL_UPDATE, "manual update" }, | |
66 | { OMAPFB_CAPS_TEARSYNC, "tearing synchronization" }, | |
67 | { OMAPFB_CAPS_PLANE_RELOCATE_MEM, "relocate plane memory" }, | |
68 | { OMAPFB_CAPS_PLANE_SCALE, "scale plane" }, | |
69 | { OMAPFB_CAPS_WINDOW_PIXEL_DOUBLE, "pixel double window" }, | |
70 | { OMAPFB_CAPS_WINDOW_SCALE, "scale window" }, | |
71 | { OMAPFB_CAPS_WINDOW_OVERLAY, "overlay window" }, | |
2f21a62f | 72 | { OMAPFB_CAPS_WINDOW_ROTATE, "rotate window" }, |
8b08cf2b ID |
73 | { OMAPFB_CAPS_SET_BACKLIGHT, "backlight setting" }, |
74 | }; | |
75 | ||
76 | static struct caps_table_struct color_caps[] = { | |
77 | { 1 << OMAPFB_COLOR_RGB565, "RGB565", }, | |
78 | { 1 << OMAPFB_COLOR_YUV422, "YUV422", }, | |
79 | { 1 << OMAPFB_COLOR_YUV420, "YUV420", }, | |
80 | { 1 << OMAPFB_COLOR_CLUT_8BPP, "CLUT8", }, | |
81 | { 1 << OMAPFB_COLOR_CLUT_4BPP, "CLUT4", }, | |
82 | { 1 << OMAPFB_COLOR_CLUT_2BPP, "CLUT2", }, | |
83 | { 1 << OMAPFB_COLOR_CLUT_1BPP, "CLUT1", }, | |
84 | { 1 << OMAPFB_COLOR_RGB444, "RGB444", }, | |
85 | { 1 << OMAPFB_COLOR_YUY422, "YUY422", }, | |
86 | }; | |
87 | ||
b64a5a12 TV |
88 | static void omapdss_release(struct device *dev) |
89 | { | |
90 | } | |
91 | ||
f778a12d TV |
92 | /* dummy device for clocks */ |
93 | static struct platform_device omapdss_device = { | |
c96c92d8 | 94 | .name = "omapdss_dss", |
f778a12d | 95 | .id = -1, |
b64a5a12 TV |
96 | .dev = { |
97 | .release = omapdss_release, | |
98 | }, | |
f778a12d TV |
99 | }; |
100 | ||
8b08cf2b ID |
101 | /* |
102 | * --------------------------------------------------------------------------- | |
103 | * LCD panel | |
104 | * --------------------------------------------------------------------------- | |
105 | */ | |
8b08cf2b ID |
106 | extern struct lcd_ctrl hwa742_ctrl; |
107 | extern struct lcd_ctrl blizzard_ctrl; | |
108 | ||
7c8ad982 | 109 | static const struct lcd_ctrl *ctrls[] = { |
8b08cf2b ID |
110 | #ifdef CONFIG_ARCH_OMAP1 |
111 | &omap1_int_ctrl, | |
112 | #else | |
113 | &omap2_int_ctrl, | |
114 | #endif | |
115 | ||
116 | #ifdef CONFIG_FB_OMAP_LCDC_HWA742 | |
117 | &hwa742_ctrl, | |
118 | #endif | |
119 | #ifdef CONFIG_FB_OMAP_LCDC_BLIZZARD | |
120 | &blizzard_ctrl, | |
121 | #endif | |
122 | }; | |
123 | ||
124 | #ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL | |
125 | #ifdef CONFIG_ARCH_OMAP1 | |
126 | extern struct lcd_ctrl_extif omap1_ext_if; | |
127 | #else | |
128 | extern struct lcd_ctrl_extif omap2_ext_if; | |
129 | #endif | |
130 | #endif | |
131 | ||
132 | static void omapfb_rqueue_lock(struct omapfb_device *fbdev) | |
133 | { | |
134 | mutex_lock(&fbdev->rqueue_mutex); | |
135 | } | |
136 | ||
137 | static void omapfb_rqueue_unlock(struct omapfb_device *fbdev) | |
138 | { | |
139 | mutex_unlock(&fbdev->rqueue_mutex); | |
140 | } | |
141 | ||
142 | /* | |
143 | * --------------------------------------------------------------------------- | |
144 | * LCD controller and LCD DMA | |
145 | * --------------------------------------------------------------------------- | |
146 | */ | |
147 | /* Lookup table to map elem size to elem type. */ | |
148 | static const int dma_elem_type[] = { | |
149 | 0, | |
150 | OMAP_DMA_DATA_TYPE_S8, | |
151 | OMAP_DMA_DATA_TYPE_S16, | |
152 | 0, | |
153 | OMAP_DMA_DATA_TYPE_S32, | |
154 | }; | |
155 | ||
156 | /* | |
157 | * Allocate resources needed for LCD controller and LCD DMA operations. Video | |
158 | * memory is allocated from system memory according to the virtual display | |
159 | * size, except if a bigger memory size is specified explicitly as a kernel | |
160 | * parameter. | |
161 | */ | |
162 | static int ctrl_init(struct omapfb_device *fbdev) | |
163 | { | |
164 | int r; | |
165 | int i; | |
166 | ||
167 | /* kernel/module vram parameters override boot tags/board config */ | |
168 | if (def_vram_cnt) { | |
169 | for (i = 0; i < def_vram_cnt; i++) | |
170 | fbdev->mem_desc.region[i].size = | |
171 | PAGE_ALIGN(def_vram[i]); | |
172 | fbdev->mem_desc.region_cnt = i; | |
173 | } else { | |
174 | struct omapfb_platform_data *conf; | |
175 | ||
176 | conf = fbdev->dev->platform_data; | |
177 | fbdev->mem_desc = conf->mem_desc; | |
178 | } | |
179 | ||
180 | if (!fbdev->mem_desc.region_cnt) { | |
181 | struct lcd_panel *panel = fbdev->panel; | |
182 | int def_size; | |
183 | int bpp = panel->bpp; | |
184 | ||
185 | /* 12 bpp is packed in 16 bits */ | |
186 | if (bpp == 12) | |
187 | bpp = 16; | |
188 | def_size = def_vxres * def_vyres * bpp / 8; | |
189 | fbdev->mem_desc.region_cnt = 1; | |
190 | fbdev->mem_desc.region[0].size = PAGE_ALIGN(def_size); | |
191 | } | |
192 | r = fbdev->ctrl->init(fbdev, 0, &fbdev->mem_desc); | |
193 | if (r < 0) { | |
194 | dev_err(fbdev->dev, "controller initialization failed (%d)\n", | |
195 | r); | |
196 | return r; | |
197 | } | |
198 | ||
199 | #ifdef DEBUG | |
200 | for (i = 0; i < fbdev->mem_desc.region_cnt; i++) { | |
201 | dev_dbg(fbdev->dev, "region%d phys %08x virt %p size=%lu\n", | |
202 | i, | |
203 | fbdev->mem_desc.region[i].paddr, | |
204 | fbdev->mem_desc.region[i].vaddr, | |
205 | fbdev->mem_desc.region[i].size); | |
206 | } | |
207 | #endif | |
208 | return 0; | |
209 | } | |
210 | ||
211 | static void ctrl_cleanup(struct omapfb_device *fbdev) | |
212 | { | |
213 | fbdev->ctrl->cleanup(); | |
214 | } | |
215 | ||
216 | /* Must be called with fbdev->rqueue_mutex held. */ | |
217 | static int ctrl_change_mode(struct fb_info *fbi) | |
218 | { | |
219 | int r; | |
220 | unsigned long offset; | |
221 | struct omapfb_plane_struct *plane = fbi->par; | |
222 | struct omapfb_device *fbdev = plane->fbdev; | |
223 | struct fb_var_screeninfo *var = &fbi->var; | |
224 | ||
225 | offset = var->yoffset * fbi->fix.line_length + | |
226 | var->xoffset * var->bits_per_pixel / 8; | |
227 | ||
228 | if (fbdev->ctrl->sync) | |
229 | fbdev->ctrl->sync(); | |
230 | r = fbdev->ctrl->setup_plane(plane->idx, plane->info.channel_out, | |
231 | offset, var->xres_virtual, | |
232 | plane->info.pos_x, plane->info.pos_y, | |
233 | var->xres, var->yres, plane->color_mode); | |
2f21a62f RV |
234 | if (r < 0) |
235 | return r; | |
236 | ||
237 | if (fbdev->ctrl->set_rotate != NULL) { | |
238 | r = fbdev->ctrl->set_rotate(var->rotate); | |
239 | if (r < 0) | |
240 | return r; | |
241 | } | |
242 | ||
8b08cf2b ID |
243 | if (fbdev->ctrl->set_scale != NULL) |
244 | r = fbdev->ctrl->set_scale(plane->idx, | |
245 | var->xres, var->yres, | |
246 | plane->info.out_width, | |
247 | plane->info.out_height); | |
248 | ||
249 | return r; | |
250 | } | |
251 | ||
252 | /* | |
253 | * --------------------------------------------------------------------------- | |
254 | * fbdev framework callbacks and the ioctl interface | |
255 | * --------------------------------------------------------------------------- | |
256 | */ | |
257 | /* Called each time the omapfb device is opened */ | |
258 | static int omapfb_open(struct fb_info *info, int user) | |
259 | { | |
260 | return 0; | |
261 | } | |
262 | ||
263 | static void omapfb_sync(struct fb_info *info); | |
264 | ||
265 | /* Called when the omapfb device is closed. We make sure that any pending | |
266 | * gfx DMA operations are ended, before we return. */ | |
267 | static int omapfb_release(struct fb_info *info, int user) | |
268 | { | |
269 | omapfb_sync(info); | |
270 | return 0; | |
271 | } | |
272 | ||
273 | /* Store a single color palette entry into a pseudo palette or the hardware | |
274 | * palette if one is available. For now we support only 16bpp and thus store | |
275 | * the entry only to the pseudo palette. | |
276 | */ | |
277 | static int _setcolreg(struct fb_info *info, u_int regno, u_int red, u_int green, | |
278 | u_int blue, u_int transp, int update_hw_pal) | |
279 | { | |
280 | struct omapfb_plane_struct *plane = info->par; | |
281 | struct omapfb_device *fbdev = plane->fbdev; | |
282 | struct fb_var_screeninfo *var = &info->var; | |
283 | int r = 0; | |
284 | ||
285 | switch (plane->color_mode) { | |
286 | case OMAPFB_COLOR_YUV422: | |
287 | case OMAPFB_COLOR_YUV420: | |
288 | case OMAPFB_COLOR_YUY422: | |
289 | r = -EINVAL; | |
290 | break; | |
291 | case OMAPFB_COLOR_CLUT_8BPP: | |
292 | case OMAPFB_COLOR_CLUT_4BPP: | |
293 | case OMAPFB_COLOR_CLUT_2BPP: | |
294 | case OMAPFB_COLOR_CLUT_1BPP: | |
295 | if (fbdev->ctrl->setcolreg) | |
296 | r = fbdev->ctrl->setcolreg(regno, red, green, blue, | |
297 | transp, update_hw_pal); | |
298 | /* Fallthrough */ | |
299 | case OMAPFB_COLOR_RGB565: | |
300 | case OMAPFB_COLOR_RGB444: | |
301 | if (r != 0) | |
302 | break; | |
303 | ||
304 | if (regno < 0) { | |
305 | r = -EINVAL; | |
306 | break; | |
307 | } | |
308 | ||
309 | if (regno < 16) { | |
310 | u16 pal; | |
311 | pal = ((red >> (16 - var->red.length)) << | |
312 | var->red.offset) | | |
313 | ((green >> (16 - var->green.length)) << | |
314 | var->green.offset) | | |
315 | (blue >> (16 - var->blue.length)); | |
316 | ((u32 *)(info->pseudo_palette))[regno] = pal; | |
317 | } | |
318 | break; | |
319 | default: | |
320 | BUG(); | |
321 | } | |
322 | return r; | |
323 | } | |
324 | ||
325 | static int omapfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, | |
326 | u_int transp, struct fb_info *info) | |
327 | { | |
328 | return _setcolreg(info, regno, red, green, blue, transp, 1); | |
329 | } | |
330 | ||
331 | static int omapfb_setcmap(struct fb_cmap *cmap, struct fb_info *info) | |
332 | { | |
333 | int count, index, r; | |
334 | u16 *red, *green, *blue, *transp; | |
335 | u16 trans = 0xffff; | |
336 | ||
337 | red = cmap->red; | |
338 | green = cmap->green; | |
339 | blue = cmap->blue; | |
340 | transp = cmap->transp; | |
341 | index = cmap->start; | |
342 | ||
343 | for (count = 0; count < cmap->len; count++) { | |
344 | if (transp) | |
345 | trans = *transp++; | |
346 | r = _setcolreg(info, index++, *red++, *green++, *blue++, trans, | |
347 | count == cmap->len - 1); | |
348 | if (r != 0) | |
349 | return r; | |
350 | } | |
351 | ||
352 | return 0; | |
353 | } | |
354 | ||
355 | static int omapfb_update_full_screen(struct fb_info *fbi); | |
356 | ||
357 | static int omapfb_blank(int blank, struct fb_info *fbi) | |
358 | { | |
359 | struct omapfb_plane_struct *plane = fbi->par; | |
360 | struct omapfb_device *fbdev = plane->fbdev; | |
361 | int do_update = 0; | |
362 | int r = 0; | |
363 | ||
364 | omapfb_rqueue_lock(fbdev); | |
365 | switch (blank) { | |
c958557e | 366 | case FB_BLANK_UNBLANK: |
8b08cf2b ID |
367 | if (fbdev->state == OMAPFB_SUSPENDED) { |
368 | if (fbdev->ctrl->resume) | |
369 | fbdev->ctrl->resume(); | |
370 | fbdev->panel->enable(fbdev->panel); | |
371 | fbdev->state = OMAPFB_ACTIVE; | |
372 | if (fbdev->ctrl->get_update_mode() == | |
373 | OMAPFB_MANUAL_UPDATE) | |
374 | do_update = 1; | |
375 | } | |
376 | break; | |
c958557e | 377 | case FB_BLANK_POWERDOWN: |
8b08cf2b ID |
378 | if (fbdev->state == OMAPFB_ACTIVE) { |
379 | fbdev->panel->disable(fbdev->panel); | |
380 | if (fbdev->ctrl->suspend) | |
381 | fbdev->ctrl->suspend(); | |
382 | fbdev->state = OMAPFB_SUSPENDED; | |
383 | } | |
384 | break; | |
385 | default: | |
386 | r = -EINVAL; | |
387 | } | |
388 | omapfb_rqueue_unlock(fbdev); | |
389 | ||
390 | if (r == 0 && do_update) | |
391 | r = omapfb_update_full_screen(fbi); | |
392 | ||
393 | return r; | |
394 | } | |
395 | ||
396 | static void omapfb_sync(struct fb_info *fbi) | |
397 | { | |
398 | struct omapfb_plane_struct *plane = fbi->par; | |
399 | struct omapfb_device *fbdev = plane->fbdev; | |
400 | ||
401 | omapfb_rqueue_lock(fbdev); | |
402 | if (fbdev->ctrl->sync) | |
403 | fbdev->ctrl->sync(); | |
404 | omapfb_rqueue_unlock(fbdev); | |
405 | } | |
406 | ||
407 | /* | |
408 | * Set fb_info.fix fields and also updates fbdev. | |
409 | * When calling this fb_info.var must be set up already. | |
410 | */ | |
03bb2b49 | 411 | static void set_fb_fix(struct fb_info *fbi, int from_init) |
8b08cf2b ID |
412 | { |
413 | struct fb_fix_screeninfo *fix = &fbi->fix; | |
414 | struct fb_var_screeninfo *var = &fbi->var; | |
415 | struct omapfb_plane_struct *plane = fbi->par; | |
416 | struct omapfb_mem_region *rg; | |
417 | int bpp; | |
418 | ||
419 | rg = &plane->fbdev->mem_desc.region[plane->idx]; | |
020f9706 | 420 | fbi->screen_base = rg->vaddr; |
03bb2b49 SA |
421 | |
422 | if (!from_init) { | |
423 | mutex_lock(&fbi->mm_lock); | |
424 | fix->smem_start = rg->paddr; | |
425 | fix->smem_len = rg->size; | |
426 | mutex_unlock(&fbi->mm_lock); | |
427 | } else { | |
428 | fix->smem_start = rg->paddr; | |
429 | fix->smem_len = rg->size; | |
430 | } | |
8b08cf2b ID |
431 | |
432 | fix->type = FB_TYPE_PACKED_PIXELS; | |
433 | bpp = var->bits_per_pixel; | |
434 | if (var->nonstd) | |
435 | fix->visual = FB_VISUAL_PSEUDOCOLOR; | |
436 | else switch (var->bits_per_pixel) { | |
437 | case 16: | |
438 | case 12: | |
439 | fix->visual = FB_VISUAL_TRUECOLOR; | |
440 | /* 12bpp is stored in 16 bits */ | |
441 | bpp = 16; | |
442 | break; | |
443 | case 1: | |
444 | case 2: | |
445 | case 4: | |
446 | case 8: | |
447 | fix->visual = FB_VISUAL_PSEUDOCOLOR; | |
448 | break; | |
449 | } | |
450 | fix->accel = FB_ACCEL_OMAP1610; | |
451 | fix->line_length = var->xres_virtual * bpp / 8; | |
452 | } | |
453 | ||
454 | static int set_color_mode(struct omapfb_plane_struct *plane, | |
455 | struct fb_var_screeninfo *var) | |
456 | { | |
457 | switch (var->nonstd) { | |
458 | case 0: | |
459 | break; | |
460 | case OMAPFB_COLOR_YUV422: | |
461 | var->bits_per_pixel = 16; | |
462 | plane->color_mode = var->nonstd; | |
463 | return 0; | |
464 | case OMAPFB_COLOR_YUV420: | |
465 | var->bits_per_pixel = 12; | |
466 | plane->color_mode = var->nonstd; | |
467 | return 0; | |
468 | case OMAPFB_COLOR_YUY422: | |
469 | var->bits_per_pixel = 16; | |
470 | plane->color_mode = var->nonstd; | |
471 | return 0; | |
472 | default: | |
473 | return -EINVAL; | |
474 | } | |
475 | ||
476 | switch (var->bits_per_pixel) { | |
477 | case 1: | |
478 | plane->color_mode = OMAPFB_COLOR_CLUT_1BPP; | |
479 | return 0; | |
480 | case 2: | |
481 | plane->color_mode = OMAPFB_COLOR_CLUT_2BPP; | |
482 | return 0; | |
483 | case 4: | |
484 | plane->color_mode = OMAPFB_COLOR_CLUT_4BPP; | |
485 | return 0; | |
486 | case 8: | |
487 | plane->color_mode = OMAPFB_COLOR_CLUT_8BPP; | |
488 | return 0; | |
489 | case 12: | |
490 | var->bits_per_pixel = 16; | |
8b08cf2b | 491 | case 16: |
3e9ff044 JK |
492 | if (plane->fbdev->panel->bpp == 12) |
493 | plane->color_mode = OMAPFB_COLOR_RGB444; | |
494 | else | |
495 | plane->color_mode = OMAPFB_COLOR_RGB565; | |
8b08cf2b ID |
496 | return 0; |
497 | default: | |
498 | return -EINVAL; | |
499 | } | |
500 | } | |
501 | ||
502 | /* | |
503 | * Check the values in var against our capabilities and in case of out of | |
504 | * bound values try to adjust them. | |
505 | */ | |
506 | static int set_fb_var(struct fb_info *fbi, | |
507 | struct fb_var_screeninfo *var) | |
508 | { | |
509 | int bpp; | |
510 | unsigned long max_frame_size; | |
511 | unsigned long line_size; | |
512 | int xres_min, xres_max; | |
513 | int yres_min, yres_max; | |
514 | struct omapfb_plane_struct *plane = fbi->par; | |
515 | struct omapfb_device *fbdev = plane->fbdev; | |
516 | struct lcd_panel *panel = fbdev->panel; | |
517 | ||
518 | if (set_color_mode(plane, var) < 0) | |
519 | return -EINVAL; | |
520 | ||
521 | bpp = var->bits_per_pixel; | |
522 | if (plane->color_mode == OMAPFB_COLOR_RGB444) | |
523 | bpp = 16; | |
524 | ||
525 | switch (var->rotate) { | |
526 | case 0: | |
527 | case 180: | |
528 | xres_min = OMAPFB_PLANE_XRES_MIN; | |
529 | xres_max = panel->x_res; | |
530 | yres_min = OMAPFB_PLANE_YRES_MIN; | |
531 | yres_max = panel->y_res; | |
532 | if (cpu_is_omap15xx()) { | |
533 | var->xres = panel->x_res; | |
534 | var->yres = panel->y_res; | |
535 | } | |
536 | break; | |
537 | case 90: | |
538 | case 270: | |
539 | xres_min = OMAPFB_PLANE_YRES_MIN; | |
540 | xres_max = panel->y_res; | |
541 | yres_min = OMAPFB_PLANE_XRES_MIN; | |
542 | yres_max = panel->x_res; | |
543 | if (cpu_is_omap15xx()) { | |
544 | var->xres = panel->y_res; | |
545 | var->yres = panel->x_res; | |
546 | } | |
547 | break; | |
548 | default: | |
549 | return -EINVAL; | |
550 | } | |
551 | ||
552 | if (var->xres < xres_min) | |
553 | var->xres = xres_min; | |
554 | if (var->yres < yres_min) | |
555 | var->yres = yres_min; | |
556 | if (var->xres > xres_max) | |
557 | var->xres = xres_max; | |
558 | if (var->yres > yres_max) | |
559 | var->yres = yres_max; | |
560 | ||
561 | if (var->xres_virtual < var->xres) | |
562 | var->xres_virtual = var->xres; | |
563 | if (var->yres_virtual < var->yres) | |
564 | var->yres_virtual = var->yres; | |
565 | max_frame_size = fbdev->mem_desc.region[plane->idx].size; | |
566 | line_size = var->xres_virtual * bpp / 8; | |
567 | if (line_size * var->yres_virtual > max_frame_size) { | |
568 | /* Try to keep yres_virtual first */ | |
569 | line_size = max_frame_size / var->yres_virtual; | |
570 | var->xres_virtual = line_size * 8 / bpp; | |
571 | if (var->xres_virtual < var->xres) { | |
572 | /* Still doesn't fit. Shrink yres_virtual too */ | |
573 | var->xres_virtual = var->xres; | |
574 | line_size = var->xres * bpp / 8; | |
575 | var->yres_virtual = max_frame_size / line_size; | |
576 | } | |
577 | /* Recheck this, as the virtual size changed. */ | |
578 | if (var->xres_virtual < var->xres) | |
579 | var->xres = var->xres_virtual; | |
580 | if (var->yres_virtual < var->yres) | |
581 | var->yres = var->yres_virtual; | |
582 | if (var->xres < xres_min || var->yres < yres_min) | |
583 | return -EINVAL; | |
584 | } | |
585 | if (var->xres + var->xoffset > var->xres_virtual) | |
586 | var->xoffset = var->xres_virtual - var->xres; | |
587 | if (var->yres + var->yoffset > var->yres_virtual) | |
588 | var->yoffset = var->yres_virtual - var->yres; | |
8b08cf2b ID |
589 | |
590 | if (plane->color_mode == OMAPFB_COLOR_RGB444) { | |
591 | var->red.offset = 8; var->red.length = 4; | |
592 | var->red.msb_right = 0; | |
593 | var->green.offset = 4; var->green.length = 4; | |
594 | var->green.msb_right = 0; | |
595 | var->blue.offset = 0; var->blue.length = 4; | |
596 | var->blue.msb_right = 0; | |
597 | } else { | |
598 | var->red.offset = 11; var->red.length = 5; | |
599 | var->red.msb_right = 0; | |
600 | var->green.offset = 5; var->green.length = 6; | |
601 | var->green.msb_right = 0; | |
602 | var->blue.offset = 0; var->blue.length = 5; | |
603 | var->blue.msb_right = 0; | |
604 | } | |
605 | ||
606 | var->height = -1; | |
607 | var->width = -1; | |
608 | var->grayscale = 0; | |
609 | ||
610 | /* pixclock in ps, the rest in pixclock */ | |
611 | var->pixclock = 10000000 / (panel->pixel_clock / 100); | |
612 | var->left_margin = panel->hfp; | |
613 | var->right_margin = panel->hbp; | |
614 | var->upper_margin = panel->vfp; | |
615 | var->lower_margin = panel->vbp; | |
616 | var->hsync_len = panel->hsw; | |
617 | var->vsync_len = panel->vsw; | |
618 | ||
619 | /* TODO: get these from panel->config */ | |
620 | var->vmode = FB_VMODE_NONINTERLACED; | |
621 | var->sync = 0; | |
622 | ||
623 | return 0; | |
624 | } | |
625 | ||
626 | ||
627 | /* Set rotation (0, 90, 180, 270 degree), and switch to the new mode. */ | |
628 | static void omapfb_rotate(struct fb_info *fbi, int rotate) | |
629 | { | |
630 | struct omapfb_plane_struct *plane = fbi->par; | |
631 | struct omapfb_device *fbdev = plane->fbdev; | |
632 | ||
633 | omapfb_rqueue_lock(fbdev); | |
2f21a62f | 634 | if (rotate != fbi->var.rotate) { |
8b08cf2b ID |
635 | struct fb_var_screeninfo *new_var = &fbdev->new_var; |
636 | ||
637 | memcpy(new_var, &fbi->var, sizeof(*new_var)); | |
638 | new_var->rotate = rotate; | |
639 | if (set_fb_var(fbi, new_var) == 0 && | |
640 | memcmp(new_var, &fbi->var, sizeof(*new_var))) { | |
641 | memcpy(&fbi->var, new_var, sizeof(*new_var)); | |
642 | ctrl_change_mode(fbi); | |
643 | } | |
644 | } | |
645 | omapfb_rqueue_unlock(fbdev); | |
646 | } | |
647 | ||
648 | /* | |
649 | * Set new x,y offsets in the virtual display for the visible area and switch | |
650 | * to the new mode. | |
651 | */ | |
652 | static int omapfb_pan_display(struct fb_var_screeninfo *var, | |
653 | struct fb_info *fbi) | |
654 | { | |
655 | struct omapfb_plane_struct *plane = fbi->par; | |
656 | struct omapfb_device *fbdev = plane->fbdev; | |
657 | int r = 0; | |
658 | ||
659 | omapfb_rqueue_lock(fbdev); | |
660 | if (var->xoffset != fbi->var.xoffset || | |
661 | var->yoffset != fbi->var.yoffset) { | |
662 | struct fb_var_screeninfo *new_var = &fbdev->new_var; | |
663 | ||
664 | memcpy(new_var, &fbi->var, sizeof(*new_var)); | |
665 | new_var->xoffset = var->xoffset; | |
666 | new_var->yoffset = var->yoffset; | |
667 | if (set_fb_var(fbi, new_var)) | |
668 | r = -EINVAL; | |
669 | else { | |
670 | memcpy(&fbi->var, new_var, sizeof(*new_var)); | |
671 | ctrl_change_mode(fbi); | |
672 | } | |
673 | } | |
674 | omapfb_rqueue_unlock(fbdev); | |
675 | ||
676 | return r; | |
677 | } | |
678 | ||
679 | /* Set mirror to vertical axis and switch to the new mode. */ | |
680 | static int omapfb_mirror(struct fb_info *fbi, int mirror) | |
681 | { | |
682 | struct omapfb_plane_struct *plane = fbi->par; | |
683 | struct omapfb_device *fbdev = plane->fbdev; | |
684 | int r = 0; | |
685 | ||
686 | omapfb_rqueue_lock(fbdev); | |
687 | mirror = mirror ? 1 : 0; | |
688 | if (cpu_is_omap15xx()) | |
689 | r = -EINVAL; | |
690 | else if (mirror != plane->info.mirror) { | |
691 | plane->info.mirror = mirror; | |
692 | r = ctrl_change_mode(fbi); | |
693 | } | |
694 | omapfb_rqueue_unlock(fbdev); | |
695 | ||
696 | return r; | |
697 | } | |
698 | ||
699 | /* | |
700 | * Check values in var, try to adjust them in case of out of bound values if | |
701 | * possible, or return error. | |
702 | */ | |
703 | static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi) | |
704 | { | |
705 | struct omapfb_plane_struct *plane = fbi->par; | |
706 | struct omapfb_device *fbdev = plane->fbdev; | |
707 | int r; | |
708 | ||
709 | omapfb_rqueue_lock(fbdev); | |
710 | if (fbdev->ctrl->sync != NULL) | |
711 | fbdev->ctrl->sync(); | |
712 | r = set_fb_var(fbi, var); | |
713 | omapfb_rqueue_unlock(fbdev); | |
714 | ||
715 | return r; | |
716 | } | |
717 | ||
718 | /* | |
719 | * Switch to a new mode. The parameters for it has been check already by | |
720 | * omapfb_check_var. | |
721 | */ | |
722 | static int omapfb_set_par(struct fb_info *fbi) | |
723 | { | |
724 | struct omapfb_plane_struct *plane = fbi->par; | |
725 | struct omapfb_device *fbdev = plane->fbdev; | |
726 | int r = 0; | |
727 | ||
728 | omapfb_rqueue_lock(fbdev); | |
03bb2b49 | 729 | set_fb_fix(fbi, 0); |
8b08cf2b ID |
730 | r = ctrl_change_mode(fbi); |
731 | omapfb_rqueue_unlock(fbdev); | |
732 | ||
733 | return r; | |
734 | } | |
735 | ||
736 | int omapfb_update_window_async(struct fb_info *fbi, | |
737 | struct omapfb_update_window *win, | |
738 | void (*callback)(void *), | |
739 | void *callback_data) | |
740 | { | |
2f21a62f | 741 | int xres, yres; |
8b08cf2b ID |
742 | struct omapfb_plane_struct *plane = fbi->par; |
743 | struct omapfb_device *fbdev = plane->fbdev; | |
2f21a62f RV |
744 | struct fb_var_screeninfo *var = &fbi->var; |
745 | ||
746 | switch (var->rotate) { | |
747 | case 0: | |
748 | case 180: | |
749 | xres = fbdev->panel->x_res; | |
750 | yres = fbdev->panel->y_res; | |
751 | break; | |
752 | case 90: | |
753 | case 270: | |
754 | xres = fbdev->panel->y_res; | |
755 | yres = fbdev->panel->x_res; | |
756 | break; | |
757 | default: | |
758 | return -EINVAL; | |
759 | } | |
8b08cf2b | 760 | |
2f21a62f RV |
761 | if (win->x >= xres || win->y >= yres || |
762 | win->out_x > xres || win->out_y > yres) | |
8b08cf2b ID |
763 | return -EINVAL; |
764 | ||
765 | if (!fbdev->ctrl->update_window || | |
766 | fbdev->ctrl->get_update_mode() != OMAPFB_MANUAL_UPDATE) | |
767 | return -ENODEV; | |
768 | ||
2f21a62f RV |
769 | if (win->x + win->width > xres) |
770 | win->width = xres - win->x; | |
771 | if (win->y + win->height > yres) | |
772 | win->height = yres - win->y; | |
773 | if (win->out_x + win->out_width > xres) | |
774 | win->out_width = xres - win->out_x; | |
775 | if (win->out_y + win->out_height > yres) | |
776 | win->out_height = yres - win->out_y; | |
8b08cf2b ID |
777 | if (!win->width || !win->height || !win->out_width || !win->out_height) |
778 | return 0; | |
779 | ||
780 | return fbdev->ctrl->update_window(fbi, win, callback, callback_data); | |
781 | } | |
782 | EXPORT_SYMBOL(omapfb_update_window_async); | |
783 | ||
784 | static int omapfb_update_win(struct fb_info *fbi, | |
785 | struct omapfb_update_window *win) | |
786 | { | |
787 | struct omapfb_plane_struct *plane = fbi->par; | |
788 | int ret; | |
789 | ||
790 | omapfb_rqueue_lock(plane->fbdev); | |
c0fc18c5 | 791 | ret = omapfb_update_window_async(fbi, win, NULL, NULL); |
8b08cf2b ID |
792 | omapfb_rqueue_unlock(plane->fbdev); |
793 | ||
794 | return ret; | |
795 | } | |
796 | ||
797 | static int omapfb_update_full_screen(struct fb_info *fbi) | |
798 | { | |
799 | struct omapfb_plane_struct *plane = fbi->par; | |
800 | struct omapfb_device *fbdev = plane->fbdev; | |
801 | struct omapfb_update_window win; | |
802 | int r; | |
803 | ||
804 | if (!fbdev->ctrl->update_window || | |
805 | fbdev->ctrl->get_update_mode() != OMAPFB_MANUAL_UPDATE) | |
806 | return -ENODEV; | |
807 | ||
808 | win.x = 0; | |
809 | win.y = 0; | |
810 | win.width = fbi->var.xres; | |
811 | win.height = fbi->var.yres; | |
812 | win.out_x = 0; | |
813 | win.out_y = 0; | |
814 | win.out_width = fbi->var.xres; | |
815 | win.out_height = fbi->var.yres; | |
816 | win.format = 0; | |
817 | ||
818 | omapfb_rqueue_lock(fbdev); | |
c0fc18c5 | 819 | r = fbdev->ctrl->update_window(fbi, &win, NULL, NULL); |
8b08cf2b ID |
820 | omapfb_rqueue_unlock(fbdev); |
821 | ||
822 | return r; | |
823 | } | |
824 | ||
825 | static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi) | |
826 | { | |
827 | struct omapfb_plane_struct *plane = fbi->par; | |
828 | struct omapfb_device *fbdev = plane->fbdev; | |
829 | struct lcd_panel *panel = fbdev->panel; | |
830 | struct omapfb_plane_info old_info; | |
831 | int r = 0; | |
832 | ||
833 | if (pi->pos_x + pi->out_width > panel->x_res || | |
834 | pi->pos_y + pi->out_height > panel->y_res) | |
835 | return -EINVAL; | |
836 | ||
837 | omapfb_rqueue_lock(fbdev); | |
838 | if (pi->enabled && !fbdev->mem_desc.region[plane->idx].size) { | |
839 | /* | |
840 | * This plane's memory was freed, can't enable it | |
841 | * until it's reallocated. | |
842 | */ | |
843 | r = -EINVAL; | |
844 | goto out; | |
845 | } | |
846 | old_info = plane->info; | |
847 | plane->info = *pi; | |
848 | if (pi->enabled) { | |
849 | r = ctrl_change_mode(fbi); | |
850 | if (r < 0) { | |
851 | plane->info = old_info; | |
852 | goto out; | |
853 | } | |
854 | } | |
855 | r = fbdev->ctrl->enable_plane(plane->idx, pi->enabled); | |
856 | if (r < 0) { | |
857 | plane->info = old_info; | |
858 | goto out; | |
859 | } | |
860 | out: | |
861 | omapfb_rqueue_unlock(fbdev); | |
862 | return r; | |
863 | } | |
864 | ||
865 | static int omapfb_query_plane(struct fb_info *fbi, struct omapfb_plane_info *pi) | |
866 | { | |
867 | struct omapfb_plane_struct *plane = fbi->par; | |
868 | ||
869 | *pi = plane->info; | |
870 | return 0; | |
871 | } | |
872 | ||
873 | static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi) | |
874 | { | |
875 | struct omapfb_plane_struct *plane = fbi->par; | |
876 | struct omapfb_device *fbdev = plane->fbdev; | |
877 | struct omapfb_mem_region *rg = &fbdev->mem_desc.region[plane->idx]; | |
878 | size_t size; | |
879 | int r = 0; | |
880 | ||
881 | if (fbdev->ctrl->setup_mem == NULL) | |
882 | return -ENODEV; | |
883 | if (mi->type > OMAPFB_MEMTYPE_MAX) | |
884 | return -EINVAL; | |
885 | ||
886 | size = PAGE_ALIGN(mi->size); | |
887 | omapfb_rqueue_lock(fbdev); | |
888 | if (plane->info.enabled) { | |
889 | r = -EBUSY; | |
890 | goto out; | |
891 | } | |
892 | if (rg->size != size || rg->type != mi->type) { | |
893 | struct fb_var_screeninfo *new_var = &fbdev->new_var; | |
894 | unsigned long old_size = rg->size; | |
895 | u8 old_type = rg->type; | |
896 | unsigned long paddr; | |
897 | ||
898 | rg->size = size; | |
899 | rg->type = mi->type; | |
900 | /* | |
901 | * size == 0 is a special case, for which we | |
902 | * don't check / adjust the screen parameters. | |
903 | * This isn't a problem since the plane can't | |
904 | * be reenabled unless its size is > 0. | |
905 | */ | |
906 | if (old_size != size && size) { | |
907 | if (size) { | |
908 | memcpy(new_var, &fbi->var, sizeof(*new_var)); | |
909 | r = set_fb_var(fbi, new_var); | |
910 | if (r < 0) | |
911 | goto out; | |
912 | } | |
913 | } | |
914 | ||
915 | if (fbdev->ctrl->sync) | |
916 | fbdev->ctrl->sync(); | |
917 | r = fbdev->ctrl->setup_mem(plane->idx, size, mi->type, &paddr); | |
918 | if (r < 0) { | |
919 | /* Revert changes. */ | |
920 | rg->size = old_size; | |
921 | rg->type = old_type; | |
922 | goto out; | |
923 | } | |
924 | rg->paddr = paddr; | |
925 | ||
926 | if (old_size != size) { | |
927 | if (size) { | |
928 | memcpy(&fbi->var, new_var, sizeof(fbi->var)); | |
03bb2b49 | 929 | set_fb_fix(fbi, 0); |
8b08cf2b ID |
930 | } else { |
931 | /* | |
932 | * Set these explicitly to indicate that the | |
933 | * plane memory is dealloce'd, the other | |
934 | * screen parameters in var / fix are invalid. | |
935 | */ | |
537a1bf0 | 936 | mutex_lock(&fbi->mm_lock); |
8b08cf2b ID |
937 | fbi->fix.smem_start = 0; |
938 | fbi->fix.smem_len = 0; | |
537a1bf0 | 939 | mutex_unlock(&fbi->mm_lock); |
8b08cf2b ID |
940 | } |
941 | } | |
942 | } | |
943 | out: | |
944 | omapfb_rqueue_unlock(fbdev); | |
945 | ||
946 | return r; | |
947 | } | |
948 | ||
949 | static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi) | |
950 | { | |
951 | struct omapfb_plane_struct *plane = fbi->par; | |
952 | struct omapfb_device *fbdev = plane->fbdev; | |
953 | struct omapfb_mem_region *rg; | |
954 | ||
955 | rg = &fbdev->mem_desc.region[plane->idx]; | |
956 | memset(mi, 0, sizeof(*mi)); | |
957 | mi->size = rg->size; | |
958 | mi->type = rg->type; | |
959 | ||
960 | return 0; | |
961 | } | |
962 | ||
963 | static int omapfb_set_color_key(struct omapfb_device *fbdev, | |
964 | struct omapfb_color_key *ck) | |
965 | { | |
966 | int r; | |
967 | ||
968 | if (!fbdev->ctrl->set_color_key) | |
969 | return -ENODEV; | |
970 | ||
971 | omapfb_rqueue_lock(fbdev); | |
972 | r = fbdev->ctrl->set_color_key(ck); | |
973 | omapfb_rqueue_unlock(fbdev); | |
974 | ||
975 | return r; | |
976 | } | |
977 | ||
978 | static int omapfb_get_color_key(struct omapfb_device *fbdev, | |
979 | struct omapfb_color_key *ck) | |
980 | { | |
981 | int r; | |
982 | ||
983 | if (!fbdev->ctrl->get_color_key) | |
984 | return -ENODEV; | |
985 | ||
986 | omapfb_rqueue_lock(fbdev); | |
987 | r = fbdev->ctrl->get_color_key(ck); | |
988 | omapfb_rqueue_unlock(fbdev); | |
989 | ||
990 | return r; | |
991 | } | |
992 | ||
993 | static struct blocking_notifier_head omapfb_client_list[OMAPFB_PLANE_NUM]; | |
994 | static int notifier_inited; | |
995 | ||
996 | static void omapfb_init_notifier(void) | |
997 | { | |
998 | int i; | |
999 | ||
1000 | for (i = 0; i < OMAPFB_PLANE_NUM; i++) | |
1001 | BLOCKING_INIT_NOTIFIER_HEAD(&omapfb_client_list[i]); | |
1002 | } | |
1003 | ||
1004 | int omapfb_register_client(struct omapfb_notifier_block *omapfb_nb, | |
1005 | omapfb_notifier_callback_t callback, | |
1006 | void *callback_data) | |
1007 | { | |
1008 | int r; | |
1009 | ||
1010 | if ((unsigned)omapfb_nb->plane_idx > OMAPFB_PLANE_NUM) | |
1011 | return -EINVAL; | |
1012 | ||
1013 | if (!notifier_inited) { | |
1014 | omapfb_init_notifier(); | |
1015 | notifier_inited = 1; | |
1016 | } | |
1017 | ||
1018 | omapfb_nb->nb.notifier_call = (int (*)(struct notifier_block *, | |
1019 | unsigned long, void *))callback; | |
1020 | omapfb_nb->data = callback_data; | |
1021 | r = blocking_notifier_chain_register( | |
1022 | &omapfb_client_list[omapfb_nb->plane_idx], | |
1023 | &omapfb_nb->nb); | |
1024 | if (r) | |
1025 | return r; | |
1026 | if (omapfb_dev != NULL && | |
1027 | omapfb_dev->ctrl && omapfb_dev->ctrl->bind_client) { | |
1028 | omapfb_dev->ctrl->bind_client(omapfb_nb); | |
1029 | } | |
1030 | ||
1031 | return 0; | |
1032 | } | |
1033 | EXPORT_SYMBOL(omapfb_register_client); | |
1034 | ||
1035 | int omapfb_unregister_client(struct omapfb_notifier_block *omapfb_nb) | |
1036 | { | |
1037 | return blocking_notifier_chain_unregister( | |
1038 | &omapfb_client_list[omapfb_nb->plane_idx], &omapfb_nb->nb); | |
1039 | } | |
1040 | EXPORT_SYMBOL(omapfb_unregister_client); | |
1041 | ||
1042 | void omapfb_notify_clients(struct omapfb_device *fbdev, unsigned long event) | |
1043 | { | |
1044 | int i; | |
1045 | ||
1046 | if (!notifier_inited) | |
1047 | /* no client registered yet */ | |
1048 | return; | |
1049 | ||
1050 | for (i = 0; i < OMAPFB_PLANE_NUM; i++) | |
1051 | blocking_notifier_call_chain(&omapfb_client_list[i], event, | |
1052 | fbdev->fb_info[i]); | |
1053 | } | |
1054 | EXPORT_SYMBOL(omapfb_notify_clients); | |
1055 | ||
1056 | static int omapfb_set_update_mode(struct omapfb_device *fbdev, | |
1057 | enum omapfb_update_mode mode) | |
1058 | { | |
1059 | int r; | |
1060 | ||
1061 | omapfb_rqueue_lock(fbdev); | |
1062 | r = fbdev->ctrl->set_update_mode(mode); | |
1063 | omapfb_rqueue_unlock(fbdev); | |
1064 | ||
1065 | return r; | |
1066 | } | |
1067 | ||
1068 | static enum omapfb_update_mode omapfb_get_update_mode(struct omapfb_device *fbdev) | |
1069 | { | |
1070 | int r; | |
1071 | ||
1072 | omapfb_rqueue_lock(fbdev); | |
1073 | r = fbdev->ctrl->get_update_mode(); | |
1074 | omapfb_rqueue_unlock(fbdev); | |
1075 | ||
1076 | return r; | |
1077 | } | |
1078 | ||
1079 | static void omapfb_get_caps(struct omapfb_device *fbdev, int plane, | |
1080 | struct omapfb_caps *caps) | |
1081 | { | |
1082 | memset(caps, 0, sizeof(*caps)); | |
1083 | fbdev->ctrl->get_caps(plane, caps); | |
1084 | caps->ctrl |= fbdev->panel->get_caps(fbdev->panel); | |
1085 | } | |
1086 | ||
1087 | /* For lcd testing */ | |
1088 | void omapfb_write_first_pixel(struct omapfb_device *fbdev, u16 pixval) | |
1089 | { | |
1090 | omapfb_rqueue_lock(fbdev); | |
1091 | *(u16 *)fbdev->mem_desc.region[0].vaddr = pixval; | |
1092 | if (fbdev->ctrl->get_update_mode() == OMAPFB_MANUAL_UPDATE) { | |
1093 | struct omapfb_update_window win; | |
1094 | ||
1095 | memset(&win, 0, sizeof(win)); | |
1096 | win.width = 2; | |
1097 | win.height = 2; | |
1098 | win.out_width = 2; | |
1099 | win.out_height = 2; | |
c0fc18c5 | 1100 | fbdev->ctrl->update_window(fbdev->fb_info[0], &win, NULL, NULL); |
8b08cf2b ID |
1101 | } |
1102 | omapfb_rqueue_unlock(fbdev); | |
1103 | } | |
1104 | EXPORT_SYMBOL(omapfb_write_first_pixel); | |
1105 | ||
1106 | /* | |
1107 | * Ioctl interface. Part of the kernel mode frame buffer API is duplicated | |
1108 | * here to be accessible by user mode code. | |
1109 | */ | |
1110 | static int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, | |
1111 | unsigned long arg) | |
1112 | { | |
1113 | struct omapfb_plane_struct *plane = fbi->par; | |
1114 | struct omapfb_device *fbdev = plane->fbdev; | |
1115 | struct fb_ops *ops = fbi->fbops; | |
1116 | union { | |
1117 | struct omapfb_update_window update_window; | |
1118 | struct omapfb_plane_info plane_info; | |
1119 | struct omapfb_mem_info mem_info; | |
1120 | struct omapfb_color_key color_key; | |
1121 | enum omapfb_update_mode update_mode; | |
1122 | struct omapfb_caps caps; | |
1123 | unsigned int mirror; | |
1124 | int plane_out; | |
1125 | int enable_plane; | |
1126 | } p; | |
1127 | int r = 0; | |
1128 | ||
1129 | BUG_ON(!ops); | |
1130 | switch (cmd) { | |
1131 | case OMAPFB_MIRROR: | |
1132 | if (get_user(p.mirror, (int __user *)arg)) | |
1133 | r = -EFAULT; | |
1134 | else | |
1135 | omapfb_mirror(fbi, p.mirror); | |
1136 | break; | |
1137 | case OMAPFB_SYNC_GFX: | |
1138 | omapfb_sync(fbi); | |
1139 | break; | |
1140 | case OMAPFB_VSYNC: | |
1141 | break; | |
1142 | case OMAPFB_SET_UPDATE_MODE: | |
1143 | if (get_user(p.update_mode, (int __user *)arg)) | |
1144 | r = -EFAULT; | |
1145 | else | |
1146 | r = omapfb_set_update_mode(fbdev, p.update_mode); | |
1147 | break; | |
1148 | case OMAPFB_GET_UPDATE_MODE: | |
1149 | p.update_mode = omapfb_get_update_mode(fbdev); | |
1150 | if (put_user(p.update_mode, | |
1151 | (enum omapfb_update_mode __user *)arg)) | |
1152 | r = -EFAULT; | |
1153 | break; | |
1154 | case OMAPFB_UPDATE_WINDOW_OLD: | |
1155 | if (copy_from_user(&p.update_window, (void __user *)arg, | |
1156 | sizeof(struct omapfb_update_window_old))) | |
1157 | r = -EFAULT; | |
1158 | else { | |
1159 | struct omapfb_update_window *u = &p.update_window; | |
1160 | u->out_x = u->x; | |
1161 | u->out_y = u->y; | |
1162 | u->out_width = u->width; | |
1163 | u->out_height = u->height; | |
1164 | memset(u->reserved, 0, sizeof(u->reserved)); | |
1165 | r = omapfb_update_win(fbi, u); | |
1166 | } | |
1167 | break; | |
1168 | case OMAPFB_UPDATE_WINDOW: | |
1169 | if (copy_from_user(&p.update_window, (void __user *)arg, | |
1170 | sizeof(p.update_window))) | |
1171 | r = -EFAULT; | |
1172 | else | |
1173 | r = omapfb_update_win(fbi, &p.update_window); | |
1174 | break; | |
1175 | case OMAPFB_SETUP_PLANE: | |
1176 | if (copy_from_user(&p.plane_info, (void __user *)arg, | |
1177 | sizeof(p.plane_info))) | |
1178 | r = -EFAULT; | |
1179 | else | |
1180 | r = omapfb_setup_plane(fbi, &p.plane_info); | |
1181 | break; | |
1182 | case OMAPFB_QUERY_PLANE: | |
1183 | if ((r = omapfb_query_plane(fbi, &p.plane_info)) < 0) | |
1184 | break; | |
1185 | if (copy_to_user((void __user *)arg, &p.plane_info, | |
1186 | sizeof(p.plane_info))) | |
1187 | r = -EFAULT; | |
1188 | break; | |
1189 | case OMAPFB_SETUP_MEM: | |
1190 | if (copy_from_user(&p.mem_info, (void __user *)arg, | |
1191 | sizeof(p.mem_info))) | |
1192 | r = -EFAULT; | |
1193 | else | |
1194 | r = omapfb_setup_mem(fbi, &p.mem_info); | |
1195 | break; | |
1196 | case OMAPFB_QUERY_MEM: | |
1197 | if ((r = omapfb_query_mem(fbi, &p.mem_info)) < 0) | |
1198 | break; | |
1199 | if (copy_to_user((void __user *)arg, &p.mem_info, | |
1200 | sizeof(p.mem_info))) | |
1201 | r = -EFAULT; | |
1202 | break; | |
1203 | case OMAPFB_SET_COLOR_KEY: | |
1204 | if (copy_from_user(&p.color_key, (void __user *)arg, | |
1205 | sizeof(p.color_key))) | |
1206 | r = -EFAULT; | |
1207 | else | |
1208 | r = omapfb_set_color_key(fbdev, &p.color_key); | |
1209 | break; | |
1210 | case OMAPFB_GET_COLOR_KEY: | |
1211 | if ((r = omapfb_get_color_key(fbdev, &p.color_key)) < 0) | |
1212 | break; | |
1213 | if (copy_to_user((void __user *)arg, &p.color_key, | |
1214 | sizeof(p.color_key))) | |
1215 | r = -EFAULT; | |
1216 | break; | |
1217 | case OMAPFB_GET_CAPS: | |
1218 | omapfb_get_caps(fbdev, plane->idx, &p.caps); | |
1219 | if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps))) | |
1220 | r = -EFAULT; | |
1221 | break; | |
1222 | case OMAPFB_LCD_TEST: | |
1223 | { | |
1224 | int test_num; | |
1225 | ||
1226 | if (get_user(test_num, (int __user *)arg)) { | |
1227 | r = -EFAULT; | |
1228 | break; | |
1229 | } | |
1230 | if (!fbdev->panel->run_test) { | |
1231 | r = -EINVAL; | |
1232 | break; | |
1233 | } | |
1234 | r = fbdev->panel->run_test(fbdev->panel, test_num); | |
1235 | break; | |
1236 | } | |
1237 | case OMAPFB_CTRL_TEST: | |
1238 | { | |
1239 | int test_num; | |
1240 | ||
1241 | if (get_user(test_num, (int __user *)arg)) { | |
1242 | r = -EFAULT; | |
1243 | break; | |
1244 | } | |
1245 | if (!fbdev->ctrl->run_test) { | |
1246 | r = -EINVAL; | |
1247 | break; | |
1248 | } | |
1249 | r = fbdev->ctrl->run_test(test_num); | |
1250 | break; | |
1251 | } | |
1252 | default: | |
1253 | r = -EINVAL; | |
1254 | } | |
1255 | ||
1256 | return r; | |
1257 | } | |
1258 | ||
1259 | static int omapfb_mmap(struct fb_info *info, struct vm_area_struct *vma) | |
1260 | { | |
1261 | struct omapfb_plane_struct *plane = info->par; | |
1262 | struct omapfb_device *fbdev = plane->fbdev; | |
1263 | int r; | |
1264 | ||
1265 | omapfb_rqueue_lock(fbdev); | |
1266 | r = fbdev->ctrl->mmap(info, vma); | |
1267 | omapfb_rqueue_unlock(fbdev); | |
1268 | ||
1269 | return r; | |
1270 | } | |
1271 | ||
1272 | /* | |
1273 | * Callback table for the frame buffer framework. Some of these pointers | |
1274 | * will be changed according to the current setting of fb_info->accel_flags. | |
1275 | */ | |
1276 | static struct fb_ops omapfb_ops = { | |
1277 | .owner = THIS_MODULE, | |
1278 | .fb_open = omapfb_open, | |
1279 | .fb_release = omapfb_release, | |
1280 | .fb_setcolreg = omapfb_setcolreg, | |
1281 | .fb_setcmap = omapfb_setcmap, | |
1282 | .fb_fillrect = cfb_fillrect, | |
1283 | .fb_copyarea = cfb_copyarea, | |
1284 | .fb_imageblit = cfb_imageblit, | |
1285 | .fb_blank = omapfb_blank, | |
1286 | .fb_ioctl = omapfb_ioctl, | |
1287 | .fb_check_var = omapfb_check_var, | |
1288 | .fb_set_par = omapfb_set_par, | |
1289 | .fb_rotate = omapfb_rotate, | |
1290 | .fb_pan_display = omapfb_pan_display, | |
1291 | }; | |
1292 | ||
1293 | /* | |
1294 | * --------------------------------------------------------------------------- | |
1295 | * Sysfs interface | |
1296 | * --------------------------------------------------------------------------- | |
1297 | */ | |
1298 | /* omapfbX sysfs entries */ | |
1299 | static ssize_t omapfb_show_caps_num(struct device *dev, | |
1300 | struct device_attribute *attr, char *buf) | |
1301 | { | |
5e9a8bd6 | 1302 | struct omapfb_device *fbdev = dev_get_drvdata(dev); |
8b08cf2b ID |
1303 | int plane; |
1304 | size_t size; | |
1305 | struct omapfb_caps caps; | |
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 %#010x %#010x %#010x\n", | |
1313 | plane, caps.ctrl, caps.plane_color, caps.wnd_color); | |
1314 | plane++; | |
1315 | } | |
1316 | return size; | |
1317 | } | |
1318 | ||
1319 | static ssize_t omapfb_show_caps_text(struct device *dev, | |
1320 | struct device_attribute *attr, char *buf) | |
1321 | { | |
5e9a8bd6 | 1322 | struct omapfb_device *fbdev = dev_get_drvdata(dev); |
8b08cf2b ID |
1323 | int i; |
1324 | struct omapfb_caps caps; | |
1325 | int plane; | |
1326 | size_t size; | |
1327 | ||
1328 | plane = 0; | |
1329 | size = 0; | |
1330 | while (size < PAGE_SIZE && plane < OMAPFB_PLANE_NUM) { | |
1331 | omapfb_get_caps(fbdev, plane, &caps); | |
1332 | size += snprintf(&buf[size], PAGE_SIZE - size, | |
1333 | "plane#%d:\n", plane); | |
1334 | for (i = 0; i < ARRAY_SIZE(ctrl_caps) && | |
1335 | size < PAGE_SIZE; i++) { | |
1336 | if (ctrl_caps[i].flag & caps.ctrl) | |
1337 | size += snprintf(&buf[size], PAGE_SIZE - size, | |
1338 | " %s\n", ctrl_caps[i].name); | |
1339 | } | |
1340 | size += snprintf(&buf[size], PAGE_SIZE - size, | |
1341 | " plane colors:\n"); | |
1342 | for (i = 0; i < ARRAY_SIZE(color_caps) && | |
1343 | size < PAGE_SIZE; i++) { | |
1344 | if (color_caps[i].flag & caps.plane_color) | |
1345 | size += snprintf(&buf[size], PAGE_SIZE - size, | |
1346 | " %s\n", color_caps[i].name); | |
1347 | } | |
1348 | size += snprintf(&buf[size], PAGE_SIZE - size, | |
1349 | " window colors:\n"); | |
1350 | for (i = 0; i < ARRAY_SIZE(color_caps) && | |
1351 | size < PAGE_SIZE; i++) { | |
1352 | if (color_caps[i].flag & caps.wnd_color) | |
1353 | size += snprintf(&buf[size], PAGE_SIZE - size, | |
1354 | " %s\n", color_caps[i].name); | |
1355 | } | |
1356 | ||
1357 | plane++; | |
1358 | } | |
1359 | return size; | |
1360 | } | |
1361 | ||
1362 | static DEVICE_ATTR(caps_num, 0444, omapfb_show_caps_num, NULL); | |
1363 | static DEVICE_ATTR(caps_text, 0444, omapfb_show_caps_text, NULL); | |
1364 | ||
1365 | /* panel sysfs entries */ | |
1366 | static ssize_t omapfb_show_panel_name(struct device *dev, | |
1367 | struct device_attribute *attr, char *buf) | |
1368 | { | |
5e9a8bd6 | 1369 | struct omapfb_device *fbdev = dev_get_drvdata(dev); |
8b08cf2b ID |
1370 | |
1371 | return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->panel->name); | |
1372 | } | |
1373 | ||
1374 | static ssize_t omapfb_show_bklight_level(struct device *dev, | |
1375 | struct device_attribute *attr, | |
1376 | char *buf) | |
1377 | { | |
5e9a8bd6 | 1378 | struct omapfb_device *fbdev = dev_get_drvdata(dev); |
8b08cf2b ID |
1379 | int r; |
1380 | ||
1381 | if (fbdev->panel->get_bklight_level) { | |
1382 | r = snprintf(buf, PAGE_SIZE, "%d\n", | |
1383 | fbdev->panel->get_bklight_level(fbdev->panel)); | |
1384 | } else | |
1385 | r = -ENODEV; | |
1386 | return r; | |
1387 | } | |
1388 | ||
1389 | static ssize_t omapfb_store_bklight_level(struct device *dev, | |
1390 | struct device_attribute *attr, | |
1391 | const char *buf, size_t size) | |
1392 | { | |
5e9a8bd6 | 1393 | struct omapfb_device *fbdev = dev_get_drvdata(dev); |
8b08cf2b ID |
1394 | int r; |
1395 | ||
1396 | if (fbdev->panel->set_bklight_level) { | |
1397 | unsigned int level; | |
1398 | ||
1399 | if (sscanf(buf, "%10d", &level) == 1) { | |
1400 | r = fbdev->panel->set_bklight_level(fbdev->panel, | |
1401 | level); | |
1402 | } else | |
1403 | r = -EINVAL; | |
1404 | } else | |
1405 | r = -ENODEV; | |
1406 | return r ? r : size; | |
1407 | } | |
1408 | ||
1409 | static ssize_t omapfb_show_bklight_max(struct device *dev, | |
1410 | struct device_attribute *attr, char *buf) | |
1411 | { | |
5e9a8bd6 | 1412 | struct omapfb_device *fbdev = dev_get_drvdata(dev); |
8b08cf2b ID |
1413 | int r; |
1414 | ||
1415 | if (fbdev->panel->get_bklight_level) { | |
1416 | r = snprintf(buf, PAGE_SIZE, "%d\n", | |
1417 | fbdev->panel->get_bklight_max(fbdev->panel)); | |
1418 | } else | |
1419 | r = -ENODEV; | |
1420 | return r; | |
1421 | } | |
1422 | ||
1423 | static struct device_attribute dev_attr_panel_name = | |
1424 | __ATTR(name, 0444, omapfb_show_panel_name, NULL); | |
1425 | static DEVICE_ATTR(backlight_level, 0664, | |
1426 | omapfb_show_bklight_level, omapfb_store_bklight_level); | |
1427 | static DEVICE_ATTR(backlight_max, 0444, omapfb_show_bklight_max, NULL); | |
1428 | ||
1429 | static struct attribute *panel_attrs[] = { | |
1430 | &dev_attr_panel_name.attr, | |
1431 | &dev_attr_backlight_level.attr, | |
1432 | &dev_attr_backlight_max.attr, | |
1433 | NULL, | |
1434 | }; | |
1435 | ||
1436 | static struct attribute_group panel_attr_grp = { | |
1437 | .name = "panel", | |
1438 | .attrs = panel_attrs, | |
1439 | }; | |
1440 | ||
1441 | /* ctrl sysfs entries */ | |
1442 | static ssize_t omapfb_show_ctrl_name(struct device *dev, | |
1443 | struct device_attribute *attr, char *buf) | |
1444 | { | |
5e9a8bd6 | 1445 | struct omapfb_device *fbdev = dev_get_drvdata(dev); |
8b08cf2b ID |
1446 | |
1447 | return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->ctrl->name); | |
1448 | } | |
1449 | ||
1450 | static struct device_attribute dev_attr_ctrl_name = | |
1451 | __ATTR(name, 0444, omapfb_show_ctrl_name, NULL); | |
1452 | ||
1453 | static struct attribute *ctrl_attrs[] = { | |
1454 | &dev_attr_ctrl_name.attr, | |
1455 | NULL, | |
1456 | }; | |
1457 | ||
1458 | static struct attribute_group ctrl_attr_grp = { | |
1459 | .name = "ctrl", | |
1460 | .attrs = ctrl_attrs, | |
1461 | }; | |
1462 | ||
1463 | static int omapfb_register_sysfs(struct omapfb_device *fbdev) | |
1464 | { | |
1465 | int r; | |
1466 | ||
1467 | if ((r = device_create_file(fbdev->dev, &dev_attr_caps_num))) | |
1468 | goto fail0; | |
1469 | ||
1470 | if ((r = device_create_file(fbdev->dev, &dev_attr_caps_text))) | |
1471 | goto fail1; | |
1472 | ||
1473 | if ((r = sysfs_create_group(&fbdev->dev->kobj, &panel_attr_grp))) | |
1474 | goto fail2; | |
1475 | ||
1476 | if ((r = sysfs_create_group(&fbdev->dev->kobj, &ctrl_attr_grp))) | |
1477 | goto fail3; | |
1478 | ||
1479 | return 0; | |
1480 | fail3: | |
1481 | sysfs_remove_group(&fbdev->dev->kobj, &panel_attr_grp); | |
1482 | fail2: | |
1483 | device_remove_file(fbdev->dev, &dev_attr_caps_text); | |
1484 | fail1: | |
1485 | device_remove_file(fbdev->dev, &dev_attr_caps_num); | |
1486 | fail0: | |
1487 | dev_err(fbdev->dev, "unable to register sysfs interface\n"); | |
1488 | return r; | |
1489 | } | |
1490 | ||
1491 | static void omapfb_unregister_sysfs(struct omapfb_device *fbdev) | |
1492 | { | |
1493 | sysfs_remove_group(&fbdev->dev->kobj, &ctrl_attr_grp); | |
1494 | sysfs_remove_group(&fbdev->dev->kobj, &panel_attr_grp); | |
1495 | device_remove_file(fbdev->dev, &dev_attr_caps_num); | |
1496 | device_remove_file(fbdev->dev, &dev_attr_caps_text); | |
1497 | } | |
1498 | ||
1499 | /* | |
1500 | * --------------------------------------------------------------------------- | |
1501 | * LDM callbacks | |
1502 | * --------------------------------------------------------------------------- | |
1503 | */ | |
1504 | /* Initialize system fb_info object and set the default video mode. | |
1505 | * The frame buffer memory already allocated by lcddma_init | |
1506 | */ | |
1507 | static int fbinfo_init(struct omapfb_device *fbdev, struct fb_info *info) | |
1508 | { | |
1509 | struct fb_var_screeninfo *var = &info->var; | |
1510 | struct fb_fix_screeninfo *fix = &info->fix; | |
1511 | int r = 0; | |
1512 | ||
1513 | info->fbops = &omapfb_ops; | |
1514 | info->flags = FBINFO_FLAG_DEFAULT; | |
1515 | ||
1516 | strncpy(fix->id, MODULE_NAME, sizeof(fix->id)); | |
1517 | ||
1518 | info->pseudo_palette = fbdev->pseudo_palette; | |
1519 | ||
1520 | var->accel_flags = def_accel ? FB_ACCELF_TEXT : 0; | |
1521 | var->xres = def_vxres; | |
1522 | var->yres = def_vyres; | |
1523 | var->xres_virtual = def_vxres; | |
1524 | var->yres_virtual = def_vyres; | |
1525 | var->rotate = def_rotate; | |
1526 | var->bits_per_pixel = fbdev->panel->bpp; | |
1527 | ||
1528 | set_fb_var(info, var); | |
03bb2b49 | 1529 | set_fb_fix(info, 1); |
8b08cf2b ID |
1530 | |
1531 | r = fb_alloc_cmap(&info->cmap, 16, 0); | |
1532 | if (r != 0) | |
1533 | dev_err(fbdev->dev, "unable to allocate color map memory\n"); | |
1534 | ||
1535 | return r; | |
1536 | } | |
1537 | ||
1538 | /* Release the fb_info object */ | |
1539 | static void fbinfo_cleanup(struct omapfb_device *fbdev, struct fb_info *fbi) | |
1540 | { | |
1541 | fb_dealloc_cmap(&fbi->cmap); | |
1542 | } | |
1543 | ||
1544 | static void planes_cleanup(struct omapfb_device *fbdev) | |
1545 | { | |
1546 | int i; | |
1547 | ||
1548 | for (i = 0; i < fbdev->mem_desc.region_cnt; i++) { | |
1549 | if (fbdev->fb_info[i] == NULL) | |
1550 | break; | |
1551 | fbinfo_cleanup(fbdev, fbdev->fb_info[i]); | |
1552 | framebuffer_release(fbdev->fb_info[i]); | |
1553 | } | |
1554 | } | |
1555 | ||
1556 | static int planes_init(struct omapfb_device *fbdev) | |
1557 | { | |
1558 | struct fb_info *fbi; | |
1559 | int i; | |
1560 | int r; | |
1561 | ||
1562 | for (i = 0; i < fbdev->mem_desc.region_cnt; i++) { | |
1563 | struct omapfb_plane_struct *plane; | |
1564 | fbi = framebuffer_alloc(sizeof(struct omapfb_plane_struct), | |
1565 | fbdev->dev); | |
1566 | if (fbi == NULL) { | |
1567 | dev_err(fbdev->dev, | |
1568 | "unable to allocate memory for plane info\n"); | |
1569 | planes_cleanup(fbdev); | |
1570 | return -ENOMEM; | |
1571 | } | |
1572 | plane = fbi->par; | |
1573 | plane->idx = i; | |
1574 | plane->fbdev = fbdev; | |
1575 | plane->info.mirror = def_mirror; | |
1576 | fbdev->fb_info[i] = fbi; | |
1577 | ||
1578 | if ((r = fbinfo_init(fbdev, fbi)) < 0) { | |
1579 | framebuffer_release(fbi); | |
1580 | planes_cleanup(fbdev); | |
1581 | return r; | |
1582 | } | |
1583 | plane->info.out_width = fbi->var.xres; | |
1584 | plane->info.out_height = fbi->var.yres; | |
1585 | } | |
1586 | return 0; | |
1587 | } | |
1588 | ||
1589 | /* | |
1590 | * Free driver resources. Can be called to rollback an aborted initialization | |
1591 | * sequence. | |
1592 | */ | |
1593 | static void omapfb_free_resources(struct omapfb_device *fbdev, int state) | |
1594 | { | |
1595 | int i; | |
1596 | ||
1597 | switch (state) { | |
1598 | case OMAPFB_ACTIVE: | |
1599 | for (i = 0; i < fbdev->mem_desc.region_cnt; i++) | |
1600 | unregister_framebuffer(fbdev->fb_info[i]); | |
1601 | case 7: | |
1602 | omapfb_unregister_sysfs(fbdev); | |
1603 | case 6: | |
1604 | fbdev->panel->disable(fbdev->panel); | |
1605 | case 5: | |
1606 | omapfb_set_update_mode(fbdev, OMAPFB_UPDATE_DISABLED); | |
1607 | case 4: | |
1608 | planes_cleanup(fbdev); | |
1609 | case 3: | |
1610 | ctrl_cleanup(fbdev); | |
1611 | case 2: | |
1612 | fbdev->panel->cleanup(fbdev->panel); | |
1613 | case 1: | |
1614 | dev_set_drvdata(fbdev->dev, NULL); | |
1615 | kfree(fbdev); | |
1616 | case 0: | |
1617 | /* nothing to free */ | |
1618 | break; | |
1619 | default: | |
1620 | BUG(); | |
1621 | } | |
1622 | } | |
1623 | ||
1624 | static int omapfb_find_ctrl(struct omapfb_device *fbdev) | |
1625 | { | |
1626 | struct omapfb_platform_data *conf; | |
1627 | char name[17]; | |
1628 | int i; | |
1629 | ||
1630 | conf = fbdev->dev->platform_data; | |
1631 | ||
1632 | fbdev->ctrl = NULL; | |
1633 | ||
1634 | strncpy(name, conf->lcd.ctrl_name, sizeof(name) - 1); | |
1635 | name[sizeof(name) - 1] = '\0'; | |
1636 | ||
1637 | if (strcmp(name, "internal") == 0) { | |
1638 | fbdev->ctrl = fbdev->int_ctrl; | |
1639 | return 0; | |
1640 | } | |
1641 | ||
1642 | for (i = 0; i < ARRAY_SIZE(ctrls); i++) { | |
1643 | dev_dbg(fbdev->dev, "ctrl %s\n", ctrls[i]->name); | |
1644 | if (strcmp(ctrls[i]->name, name) == 0) { | |
1645 | fbdev->ctrl = ctrls[i]; | |
1646 | break; | |
1647 | } | |
1648 | } | |
1649 | ||
1650 | if (fbdev->ctrl == NULL) { | |
1651 | dev_dbg(fbdev->dev, "ctrl %s not supported\n", name); | |
1652 | return -1; | |
1653 | } | |
1654 | ||
1655 | return 0; | |
1656 | } | |
1657 | ||
1658 | static void check_required_callbacks(struct omapfb_device *fbdev) | |
1659 | { | |
1660 | #define _C(x) (fbdev->ctrl->x != NULL) | |
1661 | #define _P(x) (fbdev->panel->x != NULL) | |
1662 | BUG_ON(fbdev->ctrl == NULL || fbdev->panel == NULL); | |
1663 | BUG_ON(!(_C(init) && _C(cleanup) && _C(get_caps) && | |
1664 | _C(set_update_mode) && _C(setup_plane) && _C(enable_plane) && | |
1665 | _P(init) && _P(cleanup) && _P(enable) && _P(disable) && | |
1666 | _P(get_caps))); | |
1667 | #undef _P | |
1668 | #undef _C | |
1669 | } | |
1670 | ||
1671 | /* | |
1672 | * Called by LDM binding to probe and attach a new device. | |
1673 | * Initialization sequence: | |
1674 | * 1. allocate system omapfb_device structure | |
1675 | * 2. select controller type according to platform configuration | |
1676 | * init LCD panel | |
1677 | * 3. init LCD controller and LCD DMA | |
1678 | * 4. init system fb_info structure for all planes | |
1679 | * 5. setup video mode for first plane and enable it | |
1680 | * 6. enable LCD panel | |
1681 | * 7. register sysfs attributes | |
1682 | * OMAPFB_ACTIVE: register system fb_info structure for all planes | |
1683 | */ | |
1684 | static int omapfb_do_probe(struct platform_device *pdev, | |
1685 | struct lcd_panel *panel) | |
1686 | { | |
1687 | struct omapfb_device *fbdev = NULL; | |
1688 | int init_state; | |
1689 | unsigned long phz, hhz, vhz; | |
1690 | unsigned long vram; | |
1691 | int i; | |
1692 | int r = 0; | |
1693 | ||
1694 | init_state = 0; | |
1695 | ||
1696 | if (pdev->num_resources != 0) { | |
1697 | dev_err(&pdev->dev, "probed for an unknown device\n"); | |
1698 | r = -ENODEV; | |
1699 | goto cleanup; | |
1700 | } | |
1701 | ||
1702 | if (pdev->dev.platform_data == NULL) { | |
1703 | dev_err(&pdev->dev, "missing platform data\n"); | |
1704 | r = -ENOENT; | |
1705 | goto cleanup; | |
1706 | } | |
1707 | ||
1708 | fbdev = kzalloc(sizeof(struct omapfb_device), GFP_KERNEL); | |
1709 | if (fbdev == NULL) { | |
1710 | dev_err(&pdev->dev, | |
1711 | "unable to allocate memory for device info\n"); | |
1712 | r = -ENOMEM; | |
1713 | goto cleanup; | |
1714 | } | |
1715 | init_state++; | |
1716 | ||
1717 | fbdev->dev = &pdev->dev; | |
1718 | fbdev->panel = panel; | |
f778a12d | 1719 | fbdev->dssdev = &omapdss_device; |
8b08cf2b ID |
1720 | platform_set_drvdata(pdev, fbdev); |
1721 | ||
1722 | mutex_init(&fbdev->rqueue_mutex); | |
1723 | ||
1724 | #ifdef CONFIG_ARCH_OMAP1 | |
1725 | fbdev->int_ctrl = &omap1_int_ctrl; | |
1726 | #ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL | |
1727 | fbdev->ext_if = &omap1_ext_if; | |
1728 | #endif | |
1729 | #else /* OMAP2 */ | |
1730 | fbdev->int_ctrl = &omap2_int_ctrl; | |
1731 | #ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL | |
1732 | fbdev->ext_if = &omap2_ext_if; | |
1733 | #endif | |
1734 | #endif | |
1735 | if (omapfb_find_ctrl(fbdev) < 0) { | |
1736 | dev_err(fbdev->dev, | |
1737 | "LCD controller not found, board not supported\n"); | |
1738 | r = -ENODEV; | |
1739 | goto cleanup; | |
1740 | } | |
1741 | ||
1742 | r = fbdev->panel->init(fbdev->panel, fbdev); | |
1743 | if (r) | |
1744 | goto cleanup; | |
1745 | ||
1746 | pr_info("omapfb: configured for panel %s\n", fbdev->panel->name); | |
1747 | ||
5910d35c | 1748 | def_vxres = def_vxres ? def_vxres : fbdev->panel->x_res; |
1749 | def_vyres = def_vyres ? def_vyres : fbdev->panel->y_res; | |
8b08cf2b ID |
1750 | |
1751 | init_state++; | |
1752 | ||
1753 | r = ctrl_init(fbdev); | |
1754 | if (r) | |
1755 | goto cleanup; | |
1756 | if (fbdev->ctrl->mmap != NULL) | |
1757 | omapfb_ops.fb_mmap = omapfb_mmap; | |
1758 | init_state++; | |
1759 | ||
1760 | check_required_callbacks(fbdev); | |
1761 | ||
1762 | r = planes_init(fbdev); | |
1763 | if (r) | |
1764 | goto cleanup; | |
1765 | init_state++; | |
1766 | ||
1767 | #ifdef CONFIG_FB_OMAP_DMA_TUNE | |
1768 | /* Set DMA priority for EMIFF access to highest */ | |
1769 | if (cpu_class_is_omap1()) | |
1770 | omap_set_dma_priority(0, OMAP_DMA_PORT_EMIFF, 15); | |
1771 | #endif | |
1772 | ||
1773 | r = ctrl_change_mode(fbdev->fb_info[0]); | |
1774 | if (r) { | |
1775 | dev_err(fbdev->dev, "mode setting failed\n"); | |
1776 | goto cleanup; | |
1777 | } | |
1778 | ||
1779 | /* GFX plane is enabled by default */ | |
1780 | r = fbdev->ctrl->enable_plane(OMAPFB_PLANE_GFX, 1); | |
1781 | if (r) | |
1782 | goto cleanup; | |
1783 | ||
1784 | omapfb_set_update_mode(fbdev, manual_update ? | |
1785 | OMAPFB_MANUAL_UPDATE : OMAPFB_AUTO_UPDATE); | |
1786 | init_state++; | |
1787 | ||
1788 | r = fbdev->panel->enable(fbdev->panel); | |
1789 | if (r) | |
1790 | goto cleanup; | |
1791 | init_state++; | |
1792 | ||
1793 | r = omapfb_register_sysfs(fbdev); | |
1794 | if (r) | |
1795 | goto cleanup; | |
1796 | init_state++; | |
1797 | ||
1798 | vram = 0; | |
1799 | for (i = 0; i < fbdev->mem_desc.region_cnt; i++) { | |
1800 | r = register_framebuffer(fbdev->fb_info[i]); | |
1801 | if (r != 0) { | |
1802 | dev_err(fbdev->dev, | |
1803 | "registering framebuffer %d failed\n", i); | |
1804 | goto cleanup; | |
1805 | } | |
1806 | vram += fbdev->mem_desc.region[i].size; | |
1807 | } | |
1808 | ||
1809 | fbdev->state = OMAPFB_ACTIVE; | |
1810 | ||
1811 | panel = fbdev->panel; | |
1812 | phz = panel->pixel_clock * 1000; | |
1813 | hhz = phz * 10 / (panel->hfp + panel->x_res + panel->hbp + panel->hsw); | |
1814 | vhz = hhz / (panel->vfp + panel->y_res + panel->vbp + panel->vsw); | |
1815 | ||
1816 | omapfb_dev = fbdev; | |
1817 | ||
1818 | pr_info("omapfb: Framebuffer initialized. Total vram %lu planes %d\n", | |
1819 | vram, fbdev->mem_desc.region_cnt); | |
1820 | pr_info("omapfb: Pixclock %lu kHz hfreq %lu.%lu kHz " | |
1821 | "vfreq %lu.%lu Hz\n", | |
1822 | phz / 1000, hhz / 10000, hhz % 10, vhz / 10, vhz % 10); | |
1823 | ||
1824 | return 0; | |
1825 | ||
1826 | cleanup: | |
1827 | omapfb_free_resources(fbdev, init_state); | |
1828 | ||
1829 | return r; | |
1830 | } | |
1831 | ||
1832 | static int omapfb_probe(struct platform_device *pdev) | |
1833 | { | |
f778a12d TV |
1834 | int r; |
1835 | ||
8b08cf2b ID |
1836 | BUG_ON(fbdev_pdev != NULL); |
1837 | ||
f778a12d TV |
1838 | r = platform_device_register(&omapdss_device); |
1839 | if (r) { | |
1840 | dev_err(&pdev->dev, "can't register omapdss device\n"); | |
1841 | return r; | |
1842 | } | |
1843 | ||
8b08cf2b ID |
1844 | /* Delay actual initialization until the LCD is registered */ |
1845 | fbdev_pdev = pdev; | |
1846 | if (fbdev_panel != NULL) | |
1847 | omapfb_do_probe(fbdev_pdev, fbdev_panel); | |
1848 | return 0; | |
1849 | } | |
1850 | ||
1851 | void omapfb_register_panel(struct lcd_panel *panel) | |
1852 | { | |
1853 | BUG_ON(fbdev_panel != NULL); | |
1854 | ||
1855 | fbdev_panel = panel; | |
1856 | if (fbdev_pdev != NULL) | |
1857 | omapfb_do_probe(fbdev_pdev, fbdev_panel); | |
1858 | } | |
1859 | ||
1860 | /* Called when the device is being detached from the driver */ | |
1861 | static int omapfb_remove(struct platform_device *pdev) | |
1862 | { | |
1863 | struct omapfb_device *fbdev = platform_get_drvdata(pdev); | |
1864 | enum omapfb_state saved_state = fbdev->state; | |
1865 | ||
1866 | /* FIXME: wait till completion of pending events */ | |
1867 | ||
1868 | fbdev->state = OMAPFB_DISABLED; | |
1869 | omapfb_free_resources(fbdev, saved_state); | |
1870 | ||
f778a12d TV |
1871 | platform_device_unregister(&omapdss_device); |
1872 | fbdev->dssdev = NULL; | |
1873 | ||
8b08cf2b ID |
1874 | return 0; |
1875 | } | |
1876 | ||
1877 | /* PM suspend */ | |
1878 | static int omapfb_suspend(struct platform_device *pdev, pm_message_t mesg) | |
1879 | { | |
1880 | struct omapfb_device *fbdev = platform_get_drvdata(pdev); | |
1881 | ||
b6c2b66d JH |
1882 | if (fbdev != NULL) |
1883 | omapfb_blank(FB_BLANK_POWERDOWN, fbdev->fb_info[0]); | |
8b08cf2b ID |
1884 | return 0; |
1885 | } | |
1886 | ||
1887 | /* PM resume */ | |
1888 | static int omapfb_resume(struct platform_device *pdev) | |
1889 | { | |
1890 | struct omapfb_device *fbdev = platform_get_drvdata(pdev); | |
1891 | ||
b6c2b66d JH |
1892 | if (fbdev != NULL) |
1893 | omapfb_blank(FB_BLANK_UNBLANK, fbdev->fb_info[0]); | |
8b08cf2b ID |
1894 | return 0; |
1895 | } | |
1896 | ||
1897 | static struct platform_driver omapfb_driver = { | |
1898 | .probe = omapfb_probe, | |
1899 | .remove = omapfb_remove, | |
1900 | .suspend = omapfb_suspend, | |
1901 | .resume = omapfb_resume, | |
1902 | .driver = { | |
1903 | .name = MODULE_NAME, | |
1904 | .owner = THIS_MODULE, | |
1905 | }, | |
1906 | }; | |
1907 | ||
1908 | #ifndef MODULE | |
1909 | ||
1910 | /* Process kernel command line parameters */ | |
1911 | static int __init omapfb_setup(char *options) | |
1912 | { | |
1913 | char *this_opt = NULL; | |
1914 | int r = 0; | |
1915 | ||
1916 | pr_debug("omapfb: options %s\n", options); | |
1917 | ||
1918 | if (!options || !*options) | |
1919 | return 0; | |
1920 | ||
1921 | while (!r && (this_opt = strsep(&options, ",")) != NULL) { | |
1922 | if (!strncmp(this_opt, "accel", 5)) | |
1923 | def_accel = 1; | |
1924 | else if (!strncmp(this_opt, "vram:", 5)) { | |
1925 | char *suffix; | |
1926 | unsigned long vram; | |
1927 | vram = (simple_strtoul(this_opt + 5, &suffix, 0)); | |
1928 | switch (suffix[0]) { | |
1929 | case '\0': | |
1930 | break; | |
1931 | case 'm': | |
1932 | case 'M': | |
1933 | vram *= 1024; | |
1934 | /* Fall through */ | |
1935 | case 'k': | |
1936 | case 'K': | |
1937 | vram *= 1024; | |
1938 | break; | |
1939 | default: | |
1940 | pr_debug("omapfb: invalid vram suffix %c\n", | |
1941 | suffix[0]); | |
1942 | r = -1; | |
1943 | } | |
1944 | def_vram[def_vram_cnt++] = vram; | |
1945 | } | |
1946 | else if (!strncmp(this_opt, "vxres:", 6)) | |
1947 | def_vxres = simple_strtoul(this_opt + 6, NULL, 0); | |
1948 | else if (!strncmp(this_opt, "vyres:", 6)) | |
1949 | def_vyres = simple_strtoul(this_opt + 6, NULL, 0); | |
1950 | else if (!strncmp(this_opt, "rotate:", 7)) | |
1951 | def_rotate = (simple_strtoul(this_opt + 7, NULL, 0)); | |
1952 | else if (!strncmp(this_opt, "mirror:", 7)) | |
1953 | def_mirror = (simple_strtoul(this_opt + 7, NULL, 0)); | |
1954 | else if (!strncmp(this_opt, "manual_update", 13)) | |
1955 | manual_update = 1; | |
1956 | else { | |
1957 | pr_debug("omapfb: invalid option\n"); | |
1958 | r = -1; | |
1959 | } | |
1960 | } | |
1961 | ||
1962 | return r; | |
1963 | } | |
1964 | ||
1965 | #endif | |
1966 | ||
1967 | /* Register both the driver and the device */ | |
1968 | static int __init omapfb_init(void) | |
1969 | { | |
1970 | #ifndef MODULE | |
1971 | char *option; | |
1972 | ||
1973 | if (fb_get_options("omapfb", &option)) | |
1974 | return -ENODEV; | |
1975 | omapfb_setup(option); | |
1976 | #endif | |
1977 | /* Register the driver with LDM */ | |
1978 | if (platform_driver_register(&omapfb_driver)) { | |
1979 | pr_debug("failed to register omapfb driver\n"); | |
1980 | return -ENODEV; | |
1981 | } | |
1982 | ||
1983 | return 0; | |
1984 | } | |
1985 | ||
1986 | static void __exit omapfb_cleanup(void) | |
1987 | { | |
1988 | platform_driver_unregister(&omapfb_driver); | |
1989 | } | |
1990 | ||
1991 | module_param_named(accel, def_accel, uint, 0664); | |
1992 | module_param_array_named(vram, def_vram, ulong, &def_vram_cnt, 0664); | |
1993 | module_param_named(vxres, def_vxres, long, 0664); | |
1994 | module_param_named(vyres, def_vyres, long, 0664); | |
1995 | module_param_named(rotate, def_rotate, uint, 0664); | |
1996 | module_param_named(mirror, def_mirror, uint, 0664); | |
1997 | module_param_named(manual_update, manual_update, bool, 0664); | |
1998 | ||
1999 | module_init(omapfb_init); | |
2000 | module_exit(omapfb_cleanup); | |
2001 | ||
2002 | MODULE_DESCRIPTION("TI OMAP framebuffer driver"); | |
2003 | MODULE_AUTHOR("Imre Deak <imre.deak@nokia.com>"); | |
2004 | MODULE_LICENSE("GPL"); |