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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 | |
45c3eb7d | 33 | #include <linux/omap-dma.h> |
8b08cf2b | 34 | |
d31c3a81 AK |
35 | #include <mach/hardware.h> |
36 | ||
91773a00 | 37 | #include "omapfb.h" |
7c8ad982 | 38 | #include "lcdc.h" |
7c8ad982 | 39 | |
8b08cf2b ID |
40 | #define MODULE_NAME "omapfb" |
41 | ||
42 | static unsigned int def_accel; | |
43 | static unsigned long def_vram[OMAPFB_PLANE_NUM]; | |
7c8ad982 | 44 | static unsigned int def_vram_cnt; |
8b08cf2b ID |
45 | static unsigned long def_vxres; |
46 | static unsigned long def_vyres; | |
47 | static unsigned int def_rotate; | |
48 | static unsigned int def_mirror; | |
49 | ||
50 | #ifdef CONFIG_FB_OMAP_MANUAL_UPDATE | |
90ab5ee9 | 51 | static bool manual_update = 1; |
8b08cf2b | 52 | #else |
90ab5ee9 | 53 | static bool manual_update; |
8b08cf2b ID |
54 | #endif |
55 | ||
56 | static struct platform_device *fbdev_pdev; | |
57 | static struct lcd_panel *fbdev_panel; | |
58 | static struct omapfb_device *omapfb_dev; | |
59 | ||
60 | struct caps_table_struct { | |
61 | unsigned long flag; | |
62 | const char *name; | |
63 | }; | |
64 | ||
65 | static struct caps_table_struct ctrl_caps[] = { | |
66 | { OMAPFB_CAPS_MANUAL_UPDATE, "manual update" }, | |
67 | { OMAPFB_CAPS_TEARSYNC, "tearing synchronization" }, | |
68 | { OMAPFB_CAPS_PLANE_RELOCATE_MEM, "relocate plane memory" }, | |
69 | { OMAPFB_CAPS_PLANE_SCALE, "scale plane" }, | |
70 | { OMAPFB_CAPS_WINDOW_PIXEL_DOUBLE, "pixel double window" }, | |
71 | { OMAPFB_CAPS_WINDOW_SCALE, "scale window" }, | |
72 | { OMAPFB_CAPS_WINDOW_OVERLAY, "overlay window" }, | |
2f21a62f | 73 | { OMAPFB_CAPS_WINDOW_ROTATE, "rotate window" }, |
8b08cf2b ID |
74 | { OMAPFB_CAPS_SET_BACKLIGHT, "backlight setting" }, |
75 | }; | |
76 | ||
77 | static struct caps_table_struct color_caps[] = { | |
78 | { 1 << OMAPFB_COLOR_RGB565, "RGB565", }, | |
79 | { 1 << OMAPFB_COLOR_YUV422, "YUV422", }, | |
80 | { 1 << OMAPFB_COLOR_YUV420, "YUV420", }, | |
81 | { 1 << OMAPFB_COLOR_CLUT_8BPP, "CLUT8", }, | |
82 | { 1 << OMAPFB_COLOR_CLUT_4BPP, "CLUT4", }, | |
83 | { 1 << OMAPFB_COLOR_CLUT_2BPP, "CLUT2", }, | |
84 | { 1 << OMAPFB_COLOR_CLUT_1BPP, "CLUT1", }, | |
85 | { 1 << OMAPFB_COLOR_RGB444, "RGB444", }, | |
86 | { 1 << OMAPFB_COLOR_YUY422, "YUY422", }, | |
87 | }; | |
88 | ||
b64a5a12 TV |
89 | static void omapdss_release(struct device *dev) |
90 | { | |
91 | } | |
92 | ||
f778a12d TV |
93 | /* dummy device for clocks */ |
94 | static struct platform_device omapdss_device = { | |
c96c92d8 | 95 | .name = "omapdss_dss", |
f778a12d | 96 | .id = -1, |
b64a5a12 TV |
97 | .dev = { |
98 | .release = omapdss_release, | |
99 | }, | |
f778a12d TV |
100 | }; |
101 | ||
8b08cf2b ID |
102 | /* |
103 | * --------------------------------------------------------------------------- | |
104 | * LCD panel | |
105 | * --------------------------------------------------------------------------- | |
106 | */ | |
8b08cf2b | 107 | extern struct lcd_ctrl hwa742_ctrl; |
8b08cf2b | 108 | |
7c8ad982 | 109 | static const struct lcd_ctrl *ctrls[] = { |
8b08cf2b | 110 | &omap1_int_ctrl, |
8b08cf2b ID |
111 | |
112 | #ifdef CONFIG_FB_OMAP_LCDC_HWA742 | |
113 | &hwa742_ctrl, | |
114 | #endif | |
8b08cf2b ID |
115 | }; |
116 | ||
117 | #ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL | |
8b08cf2b | 118 | extern struct lcd_ctrl_extif omap1_ext_if; |
8b08cf2b ID |
119 | #endif |
120 | ||
121 | static void omapfb_rqueue_lock(struct omapfb_device *fbdev) | |
122 | { | |
123 | mutex_lock(&fbdev->rqueue_mutex); | |
124 | } | |
125 | ||
126 | static void omapfb_rqueue_unlock(struct omapfb_device *fbdev) | |
127 | { | |
128 | mutex_unlock(&fbdev->rqueue_mutex); | |
129 | } | |
130 | ||
131 | /* | |
132 | * --------------------------------------------------------------------------- | |
133 | * LCD controller and LCD DMA | |
134 | * --------------------------------------------------------------------------- | |
135 | */ | |
8b08cf2b ID |
136 | /* |
137 | * Allocate resources needed for LCD controller and LCD DMA operations. Video | |
138 | * memory is allocated from system memory according to the virtual display | |
139 | * size, except if a bigger memory size is specified explicitly as a kernel | |
140 | * parameter. | |
141 | */ | |
142 | static int ctrl_init(struct omapfb_device *fbdev) | |
143 | { | |
144 | int r; | |
145 | int i; | |
146 | ||
147 | /* kernel/module vram parameters override boot tags/board config */ | |
148 | if (def_vram_cnt) { | |
149 | for (i = 0; i < def_vram_cnt; i++) | |
150 | fbdev->mem_desc.region[i].size = | |
151 | PAGE_ALIGN(def_vram[i]); | |
152 | fbdev->mem_desc.region_cnt = i; | |
8b08cf2b ID |
153 | } |
154 | ||
155 | if (!fbdev->mem_desc.region_cnt) { | |
156 | struct lcd_panel *panel = fbdev->panel; | |
157 | int def_size; | |
158 | int bpp = panel->bpp; | |
159 | ||
160 | /* 12 bpp is packed in 16 bits */ | |
161 | if (bpp == 12) | |
162 | bpp = 16; | |
163 | def_size = def_vxres * def_vyres * bpp / 8; | |
164 | fbdev->mem_desc.region_cnt = 1; | |
165 | fbdev->mem_desc.region[0].size = PAGE_ALIGN(def_size); | |
166 | } | |
167 | r = fbdev->ctrl->init(fbdev, 0, &fbdev->mem_desc); | |
168 | if (r < 0) { | |
169 | dev_err(fbdev->dev, "controller initialization failed (%d)\n", | |
170 | r); | |
171 | return r; | |
172 | } | |
173 | ||
174 | #ifdef DEBUG | |
175 | for (i = 0; i < fbdev->mem_desc.region_cnt; i++) { | |
176 | dev_dbg(fbdev->dev, "region%d phys %08x virt %p size=%lu\n", | |
177 | i, | |
178 | fbdev->mem_desc.region[i].paddr, | |
179 | fbdev->mem_desc.region[i].vaddr, | |
180 | fbdev->mem_desc.region[i].size); | |
181 | } | |
182 | #endif | |
183 | return 0; | |
184 | } | |
185 | ||
186 | static void ctrl_cleanup(struct omapfb_device *fbdev) | |
187 | { | |
188 | fbdev->ctrl->cleanup(); | |
189 | } | |
190 | ||
191 | /* Must be called with fbdev->rqueue_mutex held. */ | |
192 | static int ctrl_change_mode(struct fb_info *fbi) | |
193 | { | |
194 | int r; | |
195 | unsigned long offset; | |
196 | struct omapfb_plane_struct *plane = fbi->par; | |
197 | struct omapfb_device *fbdev = plane->fbdev; | |
198 | struct fb_var_screeninfo *var = &fbi->var; | |
199 | ||
200 | offset = var->yoffset * fbi->fix.line_length + | |
201 | var->xoffset * var->bits_per_pixel / 8; | |
202 | ||
203 | if (fbdev->ctrl->sync) | |
204 | fbdev->ctrl->sync(); | |
205 | r = fbdev->ctrl->setup_plane(plane->idx, plane->info.channel_out, | |
206 | offset, var->xres_virtual, | |
207 | plane->info.pos_x, plane->info.pos_y, | |
208 | var->xres, var->yres, plane->color_mode); | |
2f21a62f RV |
209 | if (r < 0) |
210 | return r; | |
211 | ||
212 | if (fbdev->ctrl->set_rotate != NULL) { | |
213 | r = fbdev->ctrl->set_rotate(var->rotate); | |
214 | if (r < 0) | |
215 | return r; | |
216 | } | |
217 | ||
8b08cf2b ID |
218 | if (fbdev->ctrl->set_scale != NULL) |
219 | r = fbdev->ctrl->set_scale(plane->idx, | |
220 | var->xres, var->yres, | |
221 | plane->info.out_width, | |
222 | plane->info.out_height); | |
223 | ||
224 | return r; | |
225 | } | |
226 | ||
227 | /* | |
228 | * --------------------------------------------------------------------------- | |
229 | * fbdev framework callbacks and the ioctl interface | |
230 | * --------------------------------------------------------------------------- | |
231 | */ | |
232 | /* Called each time the omapfb device is opened */ | |
233 | static int omapfb_open(struct fb_info *info, int user) | |
234 | { | |
235 | return 0; | |
236 | } | |
237 | ||
238 | static void omapfb_sync(struct fb_info *info); | |
239 | ||
240 | /* Called when the omapfb device is closed. We make sure that any pending | |
241 | * gfx DMA operations are ended, before we return. */ | |
242 | static int omapfb_release(struct fb_info *info, int user) | |
243 | { | |
244 | omapfb_sync(info); | |
245 | return 0; | |
246 | } | |
247 | ||
248 | /* Store a single color palette entry into a pseudo palette or the hardware | |
249 | * palette if one is available. For now we support only 16bpp and thus store | |
250 | * the entry only to the pseudo palette. | |
251 | */ | |
252 | static int _setcolreg(struct fb_info *info, u_int regno, u_int red, u_int green, | |
253 | u_int blue, u_int transp, int update_hw_pal) | |
254 | { | |
255 | struct omapfb_plane_struct *plane = info->par; | |
256 | struct omapfb_device *fbdev = plane->fbdev; | |
257 | struct fb_var_screeninfo *var = &info->var; | |
258 | int r = 0; | |
259 | ||
260 | switch (plane->color_mode) { | |
261 | case OMAPFB_COLOR_YUV422: | |
262 | case OMAPFB_COLOR_YUV420: | |
263 | case OMAPFB_COLOR_YUY422: | |
264 | r = -EINVAL; | |
265 | break; | |
266 | case OMAPFB_COLOR_CLUT_8BPP: | |
267 | case OMAPFB_COLOR_CLUT_4BPP: | |
268 | case OMAPFB_COLOR_CLUT_2BPP: | |
269 | case OMAPFB_COLOR_CLUT_1BPP: | |
270 | if (fbdev->ctrl->setcolreg) | |
271 | r = fbdev->ctrl->setcolreg(regno, red, green, blue, | |
272 | transp, update_hw_pal); | |
273 | /* Fallthrough */ | |
274 | case OMAPFB_COLOR_RGB565: | |
275 | case OMAPFB_COLOR_RGB444: | |
276 | if (r != 0) | |
277 | break; | |
278 | ||
8b08cf2b ID |
279 | if (regno < 16) { |
280 | u16 pal; | |
281 | pal = ((red >> (16 - var->red.length)) << | |
282 | var->red.offset) | | |
283 | ((green >> (16 - var->green.length)) << | |
284 | var->green.offset) | | |
285 | (blue >> (16 - var->blue.length)); | |
286 | ((u32 *)(info->pseudo_palette))[regno] = pal; | |
287 | } | |
288 | break; | |
289 | default: | |
290 | BUG(); | |
291 | } | |
292 | return r; | |
293 | } | |
294 | ||
295 | static int omapfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, | |
296 | u_int transp, struct fb_info *info) | |
297 | { | |
298 | return _setcolreg(info, regno, red, green, blue, transp, 1); | |
299 | } | |
300 | ||
301 | static int omapfb_setcmap(struct fb_cmap *cmap, struct fb_info *info) | |
302 | { | |
303 | int count, index, r; | |
304 | u16 *red, *green, *blue, *transp; | |
305 | u16 trans = 0xffff; | |
306 | ||
307 | red = cmap->red; | |
308 | green = cmap->green; | |
309 | blue = cmap->blue; | |
310 | transp = cmap->transp; | |
311 | index = cmap->start; | |
312 | ||
313 | for (count = 0; count < cmap->len; count++) { | |
314 | if (transp) | |
315 | trans = *transp++; | |
316 | r = _setcolreg(info, index++, *red++, *green++, *blue++, trans, | |
317 | count == cmap->len - 1); | |
318 | if (r != 0) | |
319 | return r; | |
320 | } | |
321 | ||
322 | return 0; | |
323 | } | |
324 | ||
325 | static int omapfb_update_full_screen(struct fb_info *fbi); | |
326 | ||
327 | static int omapfb_blank(int blank, struct fb_info *fbi) | |
328 | { | |
329 | struct omapfb_plane_struct *plane = fbi->par; | |
330 | struct omapfb_device *fbdev = plane->fbdev; | |
331 | int do_update = 0; | |
332 | int r = 0; | |
333 | ||
334 | omapfb_rqueue_lock(fbdev); | |
335 | switch (blank) { | |
c958557e | 336 | case FB_BLANK_UNBLANK: |
8b08cf2b ID |
337 | if (fbdev->state == OMAPFB_SUSPENDED) { |
338 | if (fbdev->ctrl->resume) | |
339 | fbdev->ctrl->resume(); | |
561eb9d0 LPC |
340 | if (fbdev->panel->enable) |
341 | fbdev->panel->enable(fbdev->panel); | |
8b08cf2b ID |
342 | fbdev->state = OMAPFB_ACTIVE; |
343 | if (fbdev->ctrl->get_update_mode() == | |
344 | OMAPFB_MANUAL_UPDATE) | |
345 | do_update = 1; | |
346 | } | |
347 | break; | |
c958557e | 348 | case FB_BLANK_POWERDOWN: |
8b08cf2b | 349 | if (fbdev->state == OMAPFB_ACTIVE) { |
561eb9d0 LPC |
350 | if (fbdev->panel->disable) |
351 | fbdev->panel->disable(fbdev->panel); | |
8b08cf2b ID |
352 | if (fbdev->ctrl->suspend) |
353 | fbdev->ctrl->suspend(); | |
354 | fbdev->state = OMAPFB_SUSPENDED; | |
355 | } | |
356 | break; | |
357 | default: | |
358 | r = -EINVAL; | |
359 | } | |
360 | omapfb_rqueue_unlock(fbdev); | |
361 | ||
362 | if (r == 0 && do_update) | |
363 | r = omapfb_update_full_screen(fbi); | |
364 | ||
365 | return r; | |
366 | } | |
367 | ||
368 | static void omapfb_sync(struct fb_info *fbi) | |
369 | { | |
370 | struct omapfb_plane_struct *plane = fbi->par; | |
371 | struct omapfb_device *fbdev = plane->fbdev; | |
372 | ||
373 | omapfb_rqueue_lock(fbdev); | |
374 | if (fbdev->ctrl->sync) | |
375 | fbdev->ctrl->sync(); | |
376 | omapfb_rqueue_unlock(fbdev); | |
377 | } | |
378 | ||
379 | /* | |
380 | * Set fb_info.fix fields and also updates fbdev. | |
381 | * When calling this fb_info.var must be set up already. | |
382 | */ | |
03bb2b49 | 383 | static void set_fb_fix(struct fb_info *fbi, int from_init) |
8b08cf2b ID |
384 | { |
385 | struct fb_fix_screeninfo *fix = &fbi->fix; | |
386 | struct fb_var_screeninfo *var = &fbi->var; | |
387 | struct omapfb_plane_struct *plane = fbi->par; | |
388 | struct omapfb_mem_region *rg; | |
389 | int bpp; | |
390 | ||
391 | rg = &plane->fbdev->mem_desc.region[plane->idx]; | |
020f9706 | 392 | fbi->screen_base = rg->vaddr; |
03bb2b49 SA |
393 | |
394 | if (!from_init) { | |
395 | mutex_lock(&fbi->mm_lock); | |
396 | fix->smem_start = rg->paddr; | |
397 | fix->smem_len = rg->size; | |
398 | mutex_unlock(&fbi->mm_lock); | |
399 | } else { | |
400 | fix->smem_start = rg->paddr; | |
401 | fix->smem_len = rg->size; | |
402 | } | |
8b08cf2b ID |
403 | |
404 | fix->type = FB_TYPE_PACKED_PIXELS; | |
405 | bpp = var->bits_per_pixel; | |
406 | if (var->nonstd) | |
407 | fix->visual = FB_VISUAL_PSEUDOCOLOR; | |
408 | else switch (var->bits_per_pixel) { | |
409 | case 16: | |
410 | case 12: | |
411 | fix->visual = FB_VISUAL_TRUECOLOR; | |
412 | /* 12bpp is stored in 16 bits */ | |
413 | bpp = 16; | |
414 | break; | |
415 | case 1: | |
416 | case 2: | |
417 | case 4: | |
418 | case 8: | |
419 | fix->visual = FB_VISUAL_PSEUDOCOLOR; | |
420 | break; | |
421 | } | |
422 | fix->accel = FB_ACCEL_OMAP1610; | |
423 | fix->line_length = var->xres_virtual * bpp / 8; | |
424 | } | |
425 | ||
426 | static int set_color_mode(struct omapfb_plane_struct *plane, | |
427 | struct fb_var_screeninfo *var) | |
428 | { | |
429 | switch (var->nonstd) { | |
430 | case 0: | |
431 | break; | |
432 | case OMAPFB_COLOR_YUV422: | |
433 | var->bits_per_pixel = 16; | |
434 | plane->color_mode = var->nonstd; | |
435 | return 0; | |
436 | case OMAPFB_COLOR_YUV420: | |
437 | var->bits_per_pixel = 12; | |
438 | plane->color_mode = var->nonstd; | |
439 | return 0; | |
440 | case OMAPFB_COLOR_YUY422: | |
441 | var->bits_per_pixel = 16; | |
442 | plane->color_mode = var->nonstd; | |
443 | return 0; | |
444 | default: | |
445 | return -EINVAL; | |
446 | } | |
447 | ||
448 | switch (var->bits_per_pixel) { | |
449 | case 1: | |
450 | plane->color_mode = OMAPFB_COLOR_CLUT_1BPP; | |
451 | return 0; | |
452 | case 2: | |
453 | plane->color_mode = OMAPFB_COLOR_CLUT_2BPP; | |
454 | return 0; | |
455 | case 4: | |
456 | plane->color_mode = OMAPFB_COLOR_CLUT_4BPP; | |
457 | return 0; | |
458 | case 8: | |
459 | plane->color_mode = OMAPFB_COLOR_CLUT_8BPP; | |
460 | return 0; | |
461 | case 12: | |
462 | var->bits_per_pixel = 16; | |
8b08cf2b | 463 | case 16: |
3e9ff044 JK |
464 | if (plane->fbdev->panel->bpp == 12) |
465 | plane->color_mode = OMAPFB_COLOR_RGB444; | |
466 | else | |
467 | plane->color_mode = OMAPFB_COLOR_RGB565; | |
8b08cf2b ID |
468 | return 0; |
469 | default: | |
470 | return -EINVAL; | |
471 | } | |
472 | } | |
473 | ||
474 | /* | |
475 | * Check the values in var against our capabilities and in case of out of | |
476 | * bound values try to adjust them. | |
477 | */ | |
478 | static int set_fb_var(struct fb_info *fbi, | |
479 | struct fb_var_screeninfo *var) | |
480 | { | |
481 | int bpp; | |
482 | unsigned long max_frame_size; | |
483 | unsigned long line_size; | |
484 | int xres_min, xres_max; | |
485 | int yres_min, yres_max; | |
486 | struct omapfb_plane_struct *plane = fbi->par; | |
487 | struct omapfb_device *fbdev = plane->fbdev; | |
488 | struct lcd_panel *panel = fbdev->panel; | |
489 | ||
490 | if (set_color_mode(plane, var) < 0) | |
491 | return -EINVAL; | |
492 | ||
493 | bpp = var->bits_per_pixel; | |
494 | if (plane->color_mode == OMAPFB_COLOR_RGB444) | |
495 | bpp = 16; | |
496 | ||
497 | switch (var->rotate) { | |
498 | case 0: | |
499 | case 180: | |
500 | xres_min = OMAPFB_PLANE_XRES_MIN; | |
501 | xres_max = panel->x_res; | |
502 | yres_min = OMAPFB_PLANE_YRES_MIN; | |
503 | yres_max = panel->y_res; | |
504 | if (cpu_is_omap15xx()) { | |
505 | var->xres = panel->x_res; | |
506 | var->yres = panel->y_res; | |
507 | } | |
508 | break; | |
509 | case 90: | |
510 | case 270: | |
511 | xres_min = OMAPFB_PLANE_YRES_MIN; | |
512 | xres_max = panel->y_res; | |
513 | yres_min = OMAPFB_PLANE_XRES_MIN; | |
514 | yres_max = panel->x_res; | |
515 | if (cpu_is_omap15xx()) { | |
516 | var->xres = panel->y_res; | |
517 | var->yres = panel->x_res; | |
518 | } | |
519 | break; | |
520 | default: | |
521 | return -EINVAL; | |
522 | } | |
523 | ||
524 | if (var->xres < xres_min) | |
525 | var->xres = xres_min; | |
526 | if (var->yres < yres_min) | |
527 | var->yres = yres_min; | |
528 | if (var->xres > xres_max) | |
529 | var->xres = xres_max; | |
530 | if (var->yres > yres_max) | |
531 | var->yres = yres_max; | |
532 | ||
533 | if (var->xres_virtual < var->xres) | |
534 | var->xres_virtual = var->xres; | |
535 | if (var->yres_virtual < var->yres) | |
536 | var->yres_virtual = var->yres; | |
537 | max_frame_size = fbdev->mem_desc.region[plane->idx].size; | |
538 | line_size = var->xres_virtual * bpp / 8; | |
539 | if (line_size * var->yres_virtual > max_frame_size) { | |
540 | /* Try to keep yres_virtual first */ | |
541 | line_size = max_frame_size / var->yres_virtual; | |
542 | var->xres_virtual = line_size * 8 / bpp; | |
543 | if (var->xres_virtual < var->xres) { | |
544 | /* Still doesn't fit. Shrink yres_virtual too */ | |
545 | var->xres_virtual = var->xres; | |
546 | line_size = var->xres * bpp / 8; | |
547 | var->yres_virtual = max_frame_size / line_size; | |
548 | } | |
549 | /* Recheck this, as the virtual size changed. */ | |
550 | if (var->xres_virtual < var->xres) | |
551 | var->xres = var->xres_virtual; | |
552 | if (var->yres_virtual < var->yres) | |
553 | var->yres = var->yres_virtual; | |
554 | if (var->xres < xres_min || var->yres < yres_min) | |
555 | return -EINVAL; | |
556 | } | |
557 | if (var->xres + var->xoffset > var->xres_virtual) | |
558 | var->xoffset = var->xres_virtual - var->xres; | |
559 | if (var->yres + var->yoffset > var->yres_virtual) | |
560 | var->yoffset = var->yres_virtual - var->yres; | |
8b08cf2b ID |
561 | |
562 | if (plane->color_mode == OMAPFB_COLOR_RGB444) { | |
563 | var->red.offset = 8; var->red.length = 4; | |
564 | var->red.msb_right = 0; | |
565 | var->green.offset = 4; var->green.length = 4; | |
566 | var->green.msb_right = 0; | |
567 | var->blue.offset = 0; var->blue.length = 4; | |
568 | var->blue.msb_right = 0; | |
569 | } else { | |
570 | var->red.offset = 11; var->red.length = 5; | |
571 | var->red.msb_right = 0; | |
572 | var->green.offset = 5; var->green.length = 6; | |
573 | var->green.msb_right = 0; | |
574 | var->blue.offset = 0; var->blue.length = 5; | |
575 | var->blue.msb_right = 0; | |
576 | } | |
577 | ||
578 | var->height = -1; | |
579 | var->width = -1; | |
580 | var->grayscale = 0; | |
581 | ||
582 | /* pixclock in ps, the rest in pixclock */ | |
583 | var->pixclock = 10000000 / (panel->pixel_clock / 100); | |
584 | var->left_margin = panel->hfp; | |
585 | var->right_margin = panel->hbp; | |
586 | var->upper_margin = panel->vfp; | |
587 | var->lower_margin = panel->vbp; | |
588 | var->hsync_len = panel->hsw; | |
589 | var->vsync_len = panel->vsw; | |
590 | ||
591 | /* TODO: get these from panel->config */ | |
592 | var->vmode = FB_VMODE_NONINTERLACED; | |
593 | var->sync = 0; | |
594 | ||
595 | return 0; | |
596 | } | |
597 | ||
598 | ||
8b08cf2b ID |
599 | /* |
600 | * Set new x,y offsets in the virtual display for the visible area and switch | |
601 | * to the new mode. | |
602 | */ | |
603 | static int omapfb_pan_display(struct fb_var_screeninfo *var, | |
604 | struct fb_info *fbi) | |
605 | { | |
606 | struct omapfb_plane_struct *plane = fbi->par; | |
607 | struct omapfb_device *fbdev = plane->fbdev; | |
608 | int r = 0; | |
609 | ||
610 | omapfb_rqueue_lock(fbdev); | |
611 | if (var->xoffset != fbi->var.xoffset || | |
612 | var->yoffset != fbi->var.yoffset) { | |
613 | struct fb_var_screeninfo *new_var = &fbdev->new_var; | |
614 | ||
615 | memcpy(new_var, &fbi->var, sizeof(*new_var)); | |
616 | new_var->xoffset = var->xoffset; | |
617 | new_var->yoffset = var->yoffset; | |
618 | if (set_fb_var(fbi, new_var)) | |
619 | r = -EINVAL; | |
620 | else { | |
621 | memcpy(&fbi->var, new_var, sizeof(*new_var)); | |
622 | ctrl_change_mode(fbi); | |
623 | } | |
624 | } | |
625 | omapfb_rqueue_unlock(fbdev); | |
626 | ||
627 | return r; | |
628 | } | |
629 | ||
630 | /* Set mirror to vertical axis and switch to the new mode. */ | |
631 | static int omapfb_mirror(struct fb_info *fbi, int mirror) | |
632 | { | |
633 | struct omapfb_plane_struct *plane = fbi->par; | |
634 | struct omapfb_device *fbdev = plane->fbdev; | |
635 | int r = 0; | |
636 | ||
637 | omapfb_rqueue_lock(fbdev); | |
638 | mirror = mirror ? 1 : 0; | |
639 | if (cpu_is_omap15xx()) | |
640 | r = -EINVAL; | |
641 | else if (mirror != plane->info.mirror) { | |
642 | plane->info.mirror = mirror; | |
643 | r = ctrl_change_mode(fbi); | |
644 | } | |
645 | omapfb_rqueue_unlock(fbdev); | |
646 | ||
647 | return r; | |
648 | } | |
649 | ||
650 | /* | |
651 | * Check values in var, try to adjust them in case of out of bound values if | |
652 | * possible, or return error. | |
653 | */ | |
654 | static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi) | |
655 | { | |
656 | struct omapfb_plane_struct *plane = fbi->par; | |
657 | struct omapfb_device *fbdev = plane->fbdev; | |
658 | int r; | |
659 | ||
660 | omapfb_rqueue_lock(fbdev); | |
661 | if (fbdev->ctrl->sync != NULL) | |
662 | fbdev->ctrl->sync(); | |
663 | r = set_fb_var(fbi, var); | |
664 | omapfb_rqueue_unlock(fbdev); | |
665 | ||
666 | return r; | |
667 | } | |
668 | ||
669 | /* | |
670 | * Switch to a new mode. The parameters for it has been check already by | |
671 | * omapfb_check_var. | |
672 | */ | |
673 | static int omapfb_set_par(struct fb_info *fbi) | |
674 | { | |
675 | struct omapfb_plane_struct *plane = fbi->par; | |
676 | struct omapfb_device *fbdev = plane->fbdev; | |
677 | int r = 0; | |
678 | ||
679 | omapfb_rqueue_lock(fbdev); | |
03bb2b49 | 680 | set_fb_fix(fbi, 0); |
8b08cf2b ID |
681 | r = ctrl_change_mode(fbi); |
682 | omapfb_rqueue_unlock(fbdev); | |
683 | ||
684 | return r; | |
685 | } | |
686 | ||
687 | int omapfb_update_window_async(struct fb_info *fbi, | |
688 | struct omapfb_update_window *win, | |
689 | void (*callback)(void *), | |
690 | void *callback_data) | |
691 | { | |
2f21a62f | 692 | int xres, yres; |
8b08cf2b ID |
693 | struct omapfb_plane_struct *plane = fbi->par; |
694 | struct omapfb_device *fbdev = plane->fbdev; | |
2f21a62f RV |
695 | struct fb_var_screeninfo *var = &fbi->var; |
696 | ||
697 | switch (var->rotate) { | |
698 | case 0: | |
699 | case 180: | |
700 | xres = fbdev->panel->x_res; | |
701 | yres = fbdev->panel->y_res; | |
702 | break; | |
703 | case 90: | |
704 | case 270: | |
705 | xres = fbdev->panel->y_res; | |
706 | yres = fbdev->panel->x_res; | |
707 | break; | |
708 | default: | |
709 | return -EINVAL; | |
710 | } | |
8b08cf2b | 711 | |
2f21a62f RV |
712 | if (win->x >= xres || win->y >= yres || |
713 | win->out_x > xres || win->out_y > yres) | |
8b08cf2b ID |
714 | return -EINVAL; |
715 | ||
716 | if (!fbdev->ctrl->update_window || | |
717 | fbdev->ctrl->get_update_mode() != OMAPFB_MANUAL_UPDATE) | |
718 | return -ENODEV; | |
719 | ||
2f21a62f RV |
720 | if (win->x + win->width > xres) |
721 | win->width = xres - win->x; | |
722 | if (win->y + win->height > yres) | |
723 | win->height = yres - win->y; | |
724 | if (win->out_x + win->out_width > xres) | |
725 | win->out_width = xres - win->out_x; | |
726 | if (win->out_y + win->out_height > yres) | |
727 | win->out_height = yres - win->out_y; | |
8b08cf2b ID |
728 | if (!win->width || !win->height || !win->out_width || !win->out_height) |
729 | return 0; | |
730 | ||
731 | return fbdev->ctrl->update_window(fbi, win, callback, callback_data); | |
732 | } | |
733 | EXPORT_SYMBOL(omapfb_update_window_async); | |
734 | ||
735 | static int omapfb_update_win(struct fb_info *fbi, | |
736 | struct omapfb_update_window *win) | |
737 | { | |
738 | struct omapfb_plane_struct *plane = fbi->par; | |
739 | int ret; | |
740 | ||
741 | omapfb_rqueue_lock(plane->fbdev); | |
c0fc18c5 | 742 | ret = omapfb_update_window_async(fbi, win, NULL, NULL); |
8b08cf2b ID |
743 | omapfb_rqueue_unlock(plane->fbdev); |
744 | ||
745 | return ret; | |
746 | } | |
747 | ||
748 | static int omapfb_update_full_screen(struct fb_info *fbi) | |
749 | { | |
750 | struct omapfb_plane_struct *plane = fbi->par; | |
751 | struct omapfb_device *fbdev = plane->fbdev; | |
752 | struct omapfb_update_window win; | |
753 | int r; | |
754 | ||
755 | if (!fbdev->ctrl->update_window || | |
756 | fbdev->ctrl->get_update_mode() != OMAPFB_MANUAL_UPDATE) | |
757 | return -ENODEV; | |
758 | ||
759 | win.x = 0; | |
760 | win.y = 0; | |
761 | win.width = fbi->var.xres; | |
762 | win.height = fbi->var.yres; | |
763 | win.out_x = 0; | |
764 | win.out_y = 0; | |
765 | win.out_width = fbi->var.xres; | |
766 | win.out_height = fbi->var.yres; | |
767 | win.format = 0; | |
768 | ||
769 | omapfb_rqueue_lock(fbdev); | |
c0fc18c5 | 770 | r = fbdev->ctrl->update_window(fbi, &win, NULL, NULL); |
8b08cf2b ID |
771 | omapfb_rqueue_unlock(fbdev); |
772 | ||
773 | return r; | |
774 | } | |
775 | ||
776 | static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi) | |
777 | { | |
778 | struct omapfb_plane_struct *plane = fbi->par; | |
779 | struct omapfb_device *fbdev = plane->fbdev; | |
780 | struct lcd_panel *panel = fbdev->panel; | |
781 | struct omapfb_plane_info old_info; | |
782 | int r = 0; | |
783 | ||
784 | if (pi->pos_x + pi->out_width > panel->x_res || | |
785 | pi->pos_y + pi->out_height > panel->y_res) | |
786 | return -EINVAL; | |
787 | ||
788 | omapfb_rqueue_lock(fbdev); | |
789 | if (pi->enabled && !fbdev->mem_desc.region[plane->idx].size) { | |
790 | /* | |
791 | * This plane's memory was freed, can't enable it | |
792 | * until it's reallocated. | |
793 | */ | |
794 | r = -EINVAL; | |
795 | goto out; | |
796 | } | |
797 | old_info = plane->info; | |
798 | plane->info = *pi; | |
799 | if (pi->enabled) { | |
800 | r = ctrl_change_mode(fbi); | |
801 | if (r < 0) { | |
802 | plane->info = old_info; | |
803 | goto out; | |
804 | } | |
805 | } | |
806 | r = fbdev->ctrl->enable_plane(plane->idx, pi->enabled); | |
807 | if (r < 0) { | |
808 | plane->info = old_info; | |
809 | goto out; | |
810 | } | |
811 | out: | |
812 | omapfb_rqueue_unlock(fbdev); | |
813 | return r; | |
814 | } | |
815 | ||
816 | static int omapfb_query_plane(struct fb_info *fbi, struct omapfb_plane_info *pi) | |
817 | { | |
818 | struct omapfb_plane_struct *plane = fbi->par; | |
819 | ||
820 | *pi = plane->info; | |
821 | return 0; | |
822 | } | |
823 | ||
824 | static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi) | |
825 | { | |
826 | struct omapfb_plane_struct *plane = fbi->par; | |
827 | struct omapfb_device *fbdev = plane->fbdev; | |
828 | struct omapfb_mem_region *rg = &fbdev->mem_desc.region[plane->idx]; | |
829 | size_t size; | |
830 | int r = 0; | |
831 | ||
832 | if (fbdev->ctrl->setup_mem == NULL) | |
833 | return -ENODEV; | |
1896e2f1 | 834 | if (mi->type != OMAPFB_MEMTYPE_SDRAM) |
8b08cf2b ID |
835 | return -EINVAL; |
836 | ||
837 | size = PAGE_ALIGN(mi->size); | |
838 | omapfb_rqueue_lock(fbdev); | |
839 | if (plane->info.enabled) { | |
840 | r = -EBUSY; | |
841 | goto out; | |
842 | } | |
843 | if (rg->size != size || rg->type != mi->type) { | |
844 | struct fb_var_screeninfo *new_var = &fbdev->new_var; | |
845 | unsigned long old_size = rg->size; | |
846 | u8 old_type = rg->type; | |
847 | unsigned long paddr; | |
848 | ||
849 | rg->size = size; | |
850 | rg->type = mi->type; | |
851 | /* | |
852 | * size == 0 is a special case, for which we | |
853 | * don't check / adjust the screen parameters. | |
854 | * This isn't a problem since the plane can't | |
855 | * be reenabled unless its size is > 0. | |
856 | */ | |
857 | if (old_size != size && size) { | |
858 | if (size) { | |
859 | memcpy(new_var, &fbi->var, sizeof(*new_var)); | |
860 | r = set_fb_var(fbi, new_var); | |
861 | if (r < 0) | |
862 | goto out; | |
863 | } | |
864 | } | |
865 | ||
866 | if (fbdev->ctrl->sync) | |
867 | fbdev->ctrl->sync(); | |
868 | r = fbdev->ctrl->setup_mem(plane->idx, size, mi->type, &paddr); | |
869 | if (r < 0) { | |
870 | /* Revert changes. */ | |
871 | rg->size = old_size; | |
872 | rg->type = old_type; | |
873 | goto out; | |
874 | } | |
875 | rg->paddr = paddr; | |
876 | ||
877 | if (old_size != size) { | |
878 | if (size) { | |
879 | memcpy(&fbi->var, new_var, sizeof(fbi->var)); | |
03bb2b49 | 880 | set_fb_fix(fbi, 0); |
8b08cf2b ID |
881 | } else { |
882 | /* | |
883 | * Set these explicitly to indicate that the | |
884 | * plane memory is dealloce'd, the other | |
885 | * screen parameters in var / fix are invalid. | |
886 | */ | |
537a1bf0 | 887 | mutex_lock(&fbi->mm_lock); |
8b08cf2b ID |
888 | fbi->fix.smem_start = 0; |
889 | fbi->fix.smem_len = 0; | |
537a1bf0 | 890 | mutex_unlock(&fbi->mm_lock); |
8b08cf2b ID |
891 | } |
892 | } | |
893 | } | |
894 | out: | |
895 | omapfb_rqueue_unlock(fbdev); | |
896 | ||
897 | return r; | |
898 | } | |
899 | ||
900 | static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi) | |
901 | { | |
902 | struct omapfb_plane_struct *plane = fbi->par; | |
903 | struct omapfb_device *fbdev = plane->fbdev; | |
904 | struct omapfb_mem_region *rg; | |
905 | ||
906 | rg = &fbdev->mem_desc.region[plane->idx]; | |
907 | memset(mi, 0, sizeof(*mi)); | |
908 | mi->size = rg->size; | |
909 | mi->type = rg->type; | |
910 | ||
911 | return 0; | |
912 | } | |
913 | ||
914 | static int omapfb_set_color_key(struct omapfb_device *fbdev, | |
915 | struct omapfb_color_key *ck) | |
916 | { | |
917 | int r; | |
918 | ||
919 | if (!fbdev->ctrl->set_color_key) | |
920 | return -ENODEV; | |
921 | ||
922 | omapfb_rqueue_lock(fbdev); | |
923 | r = fbdev->ctrl->set_color_key(ck); | |
924 | omapfb_rqueue_unlock(fbdev); | |
925 | ||
926 | return r; | |
927 | } | |
928 | ||
929 | static int omapfb_get_color_key(struct omapfb_device *fbdev, | |
930 | struct omapfb_color_key *ck) | |
931 | { | |
932 | int r; | |
933 | ||
934 | if (!fbdev->ctrl->get_color_key) | |
935 | return -ENODEV; | |
936 | ||
937 | omapfb_rqueue_lock(fbdev); | |
938 | r = fbdev->ctrl->get_color_key(ck); | |
939 | omapfb_rqueue_unlock(fbdev); | |
940 | ||
941 | return r; | |
942 | } | |
943 | ||
944 | static struct blocking_notifier_head omapfb_client_list[OMAPFB_PLANE_NUM]; | |
945 | static int notifier_inited; | |
946 | ||
947 | static void omapfb_init_notifier(void) | |
948 | { | |
949 | int i; | |
950 | ||
951 | for (i = 0; i < OMAPFB_PLANE_NUM; i++) | |
952 | BLOCKING_INIT_NOTIFIER_HEAD(&omapfb_client_list[i]); | |
953 | } | |
954 | ||
955 | int omapfb_register_client(struct omapfb_notifier_block *omapfb_nb, | |
956 | omapfb_notifier_callback_t callback, | |
957 | void *callback_data) | |
958 | { | |
959 | int r; | |
960 | ||
961 | if ((unsigned)omapfb_nb->plane_idx > OMAPFB_PLANE_NUM) | |
962 | return -EINVAL; | |
963 | ||
964 | if (!notifier_inited) { | |
965 | omapfb_init_notifier(); | |
966 | notifier_inited = 1; | |
967 | } | |
968 | ||
969 | omapfb_nb->nb.notifier_call = (int (*)(struct notifier_block *, | |
970 | unsigned long, void *))callback; | |
971 | omapfb_nb->data = callback_data; | |
972 | r = blocking_notifier_chain_register( | |
973 | &omapfb_client_list[omapfb_nb->plane_idx], | |
974 | &omapfb_nb->nb); | |
975 | if (r) | |
976 | return r; | |
977 | if (omapfb_dev != NULL && | |
978 | omapfb_dev->ctrl && omapfb_dev->ctrl->bind_client) { | |
979 | omapfb_dev->ctrl->bind_client(omapfb_nb); | |
980 | } | |
981 | ||
982 | return 0; | |
983 | } | |
984 | EXPORT_SYMBOL(omapfb_register_client); | |
985 | ||
986 | int omapfb_unregister_client(struct omapfb_notifier_block *omapfb_nb) | |
987 | { | |
988 | return blocking_notifier_chain_unregister( | |
989 | &omapfb_client_list[omapfb_nb->plane_idx], &omapfb_nb->nb); | |
990 | } | |
991 | EXPORT_SYMBOL(omapfb_unregister_client); | |
992 | ||
993 | void omapfb_notify_clients(struct omapfb_device *fbdev, unsigned long event) | |
994 | { | |
995 | int i; | |
996 | ||
997 | if (!notifier_inited) | |
998 | /* no client registered yet */ | |
999 | return; | |
1000 | ||
1001 | for (i = 0; i < OMAPFB_PLANE_NUM; i++) | |
1002 | blocking_notifier_call_chain(&omapfb_client_list[i], event, | |
1003 | fbdev->fb_info[i]); | |
1004 | } | |
1005 | EXPORT_SYMBOL(omapfb_notify_clients); | |
1006 | ||
1007 | static int omapfb_set_update_mode(struct omapfb_device *fbdev, | |
1008 | enum omapfb_update_mode mode) | |
1009 | { | |
1010 | int r; | |
1011 | ||
1012 | omapfb_rqueue_lock(fbdev); | |
1013 | r = fbdev->ctrl->set_update_mode(mode); | |
1014 | omapfb_rqueue_unlock(fbdev); | |
1015 | ||
1016 | return r; | |
1017 | } | |
1018 | ||
1019 | static enum omapfb_update_mode omapfb_get_update_mode(struct omapfb_device *fbdev) | |
1020 | { | |
1021 | int r; | |
1022 | ||
1023 | omapfb_rqueue_lock(fbdev); | |
1024 | r = fbdev->ctrl->get_update_mode(); | |
1025 | omapfb_rqueue_unlock(fbdev); | |
1026 | ||
1027 | return r; | |
1028 | } | |
1029 | ||
1030 | static void omapfb_get_caps(struct omapfb_device *fbdev, int plane, | |
1031 | struct omapfb_caps *caps) | |
1032 | { | |
1033 | memset(caps, 0, sizeof(*caps)); | |
1034 | fbdev->ctrl->get_caps(plane, caps); | |
561eb9d0 LPC |
1035 | if (fbdev->panel->get_caps) |
1036 | caps->ctrl |= fbdev->panel->get_caps(fbdev->panel); | |
8b08cf2b ID |
1037 | } |
1038 | ||
1039 | /* For lcd testing */ | |
1040 | void omapfb_write_first_pixel(struct omapfb_device *fbdev, u16 pixval) | |
1041 | { | |
1042 | omapfb_rqueue_lock(fbdev); | |
1043 | *(u16 *)fbdev->mem_desc.region[0].vaddr = pixval; | |
1044 | if (fbdev->ctrl->get_update_mode() == OMAPFB_MANUAL_UPDATE) { | |
1045 | struct omapfb_update_window win; | |
1046 | ||
1047 | memset(&win, 0, sizeof(win)); | |
1048 | win.width = 2; | |
1049 | win.height = 2; | |
1050 | win.out_width = 2; | |
1051 | win.out_height = 2; | |
c0fc18c5 | 1052 | fbdev->ctrl->update_window(fbdev->fb_info[0], &win, NULL, NULL); |
8b08cf2b ID |
1053 | } |
1054 | omapfb_rqueue_unlock(fbdev); | |
1055 | } | |
1056 | EXPORT_SYMBOL(omapfb_write_first_pixel); | |
1057 | ||
1058 | /* | |
1059 | * Ioctl interface. Part of the kernel mode frame buffer API is duplicated | |
1060 | * here to be accessible by user mode code. | |
1061 | */ | |
1062 | static int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, | |
1063 | unsigned long arg) | |
1064 | { | |
1065 | struct omapfb_plane_struct *plane = fbi->par; | |
1066 | struct omapfb_device *fbdev = plane->fbdev; | |
1067 | struct fb_ops *ops = fbi->fbops; | |
1068 | union { | |
1069 | struct omapfb_update_window update_window; | |
1070 | struct omapfb_plane_info plane_info; | |
1071 | struct omapfb_mem_info mem_info; | |
1072 | struct omapfb_color_key color_key; | |
1073 | enum omapfb_update_mode update_mode; | |
1074 | struct omapfb_caps caps; | |
1075 | unsigned int mirror; | |
1076 | int plane_out; | |
1077 | int enable_plane; | |
1078 | } p; | |
1079 | int r = 0; | |
1080 | ||
1081 | BUG_ON(!ops); | |
1082 | switch (cmd) { | |
1083 | case OMAPFB_MIRROR: | |
1084 | if (get_user(p.mirror, (int __user *)arg)) | |
1085 | r = -EFAULT; | |
1086 | else | |
1087 | omapfb_mirror(fbi, p.mirror); | |
1088 | break; | |
1089 | case OMAPFB_SYNC_GFX: | |
1090 | omapfb_sync(fbi); | |
1091 | break; | |
1092 | case OMAPFB_VSYNC: | |
1093 | break; | |
1094 | case OMAPFB_SET_UPDATE_MODE: | |
1095 | if (get_user(p.update_mode, (int __user *)arg)) | |
1096 | r = -EFAULT; | |
1097 | else | |
1098 | r = omapfb_set_update_mode(fbdev, p.update_mode); | |
1099 | break; | |
1100 | case OMAPFB_GET_UPDATE_MODE: | |
1101 | p.update_mode = omapfb_get_update_mode(fbdev); | |
1102 | if (put_user(p.update_mode, | |
1103 | (enum omapfb_update_mode __user *)arg)) | |
1104 | r = -EFAULT; | |
1105 | break; | |
1106 | case OMAPFB_UPDATE_WINDOW_OLD: | |
1107 | if (copy_from_user(&p.update_window, (void __user *)arg, | |
1108 | sizeof(struct omapfb_update_window_old))) | |
1109 | r = -EFAULT; | |
1110 | else { | |
1111 | struct omapfb_update_window *u = &p.update_window; | |
1112 | u->out_x = u->x; | |
1113 | u->out_y = u->y; | |
1114 | u->out_width = u->width; | |
1115 | u->out_height = u->height; | |
1116 | memset(u->reserved, 0, sizeof(u->reserved)); | |
1117 | r = omapfb_update_win(fbi, u); | |
1118 | } | |
1119 | break; | |
1120 | case OMAPFB_UPDATE_WINDOW: | |
1121 | if (copy_from_user(&p.update_window, (void __user *)arg, | |
1122 | sizeof(p.update_window))) | |
1123 | r = -EFAULT; | |
1124 | else | |
1125 | r = omapfb_update_win(fbi, &p.update_window); | |
1126 | break; | |
1127 | case OMAPFB_SETUP_PLANE: | |
1128 | if (copy_from_user(&p.plane_info, (void __user *)arg, | |
1129 | sizeof(p.plane_info))) | |
1130 | r = -EFAULT; | |
1131 | else | |
1132 | r = omapfb_setup_plane(fbi, &p.plane_info); | |
1133 | break; | |
1134 | case OMAPFB_QUERY_PLANE: | |
1135 | if ((r = omapfb_query_plane(fbi, &p.plane_info)) < 0) | |
1136 | break; | |
1137 | if (copy_to_user((void __user *)arg, &p.plane_info, | |
1138 | sizeof(p.plane_info))) | |
1139 | r = -EFAULT; | |
1140 | break; | |
1141 | case OMAPFB_SETUP_MEM: | |
1142 | if (copy_from_user(&p.mem_info, (void __user *)arg, | |
1143 | sizeof(p.mem_info))) | |
1144 | r = -EFAULT; | |
1145 | else | |
1146 | r = omapfb_setup_mem(fbi, &p.mem_info); | |
1147 | break; | |
1148 | case OMAPFB_QUERY_MEM: | |
1149 | if ((r = omapfb_query_mem(fbi, &p.mem_info)) < 0) | |
1150 | break; | |
1151 | if (copy_to_user((void __user *)arg, &p.mem_info, | |
1152 | sizeof(p.mem_info))) | |
1153 | r = -EFAULT; | |
1154 | break; | |
1155 | case OMAPFB_SET_COLOR_KEY: | |
1156 | if (copy_from_user(&p.color_key, (void __user *)arg, | |
1157 | sizeof(p.color_key))) | |
1158 | r = -EFAULT; | |
1159 | else | |
1160 | r = omapfb_set_color_key(fbdev, &p.color_key); | |
1161 | break; | |
1162 | case OMAPFB_GET_COLOR_KEY: | |
1163 | if ((r = omapfb_get_color_key(fbdev, &p.color_key)) < 0) | |
1164 | break; | |
1165 | if (copy_to_user((void __user *)arg, &p.color_key, | |
1166 | sizeof(p.color_key))) | |
1167 | r = -EFAULT; | |
1168 | break; | |
1169 | case OMAPFB_GET_CAPS: | |
1170 | omapfb_get_caps(fbdev, plane->idx, &p.caps); | |
1171 | if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps))) | |
1172 | r = -EFAULT; | |
1173 | break; | |
1174 | case OMAPFB_LCD_TEST: | |
1175 | { | |
1176 | int test_num; | |
1177 | ||
1178 | if (get_user(test_num, (int __user *)arg)) { | |
1179 | r = -EFAULT; | |
1180 | break; | |
1181 | } | |
1182 | if (!fbdev->panel->run_test) { | |
1183 | r = -EINVAL; | |
1184 | break; | |
1185 | } | |
1186 | r = fbdev->panel->run_test(fbdev->panel, test_num); | |
1187 | break; | |
1188 | } | |
1189 | case OMAPFB_CTRL_TEST: | |
1190 | { | |
1191 | int test_num; | |
1192 | ||
1193 | if (get_user(test_num, (int __user *)arg)) { | |
1194 | r = -EFAULT; | |
1195 | break; | |
1196 | } | |
1197 | if (!fbdev->ctrl->run_test) { | |
1198 | r = -EINVAL; | |
1199 | break; | |
1200 | } | |
1201 | r = fbdev->ctrl->run_test(test_num); | |
1202 | break; | |
1203 | } | |
1204 | default: | |
1205 | r = -EINVAL; | |
1206 | } | |
1207 | ||
1208 | return r; | |
1209 | } | |
1210 | ||
1211 | static int omapfb_mmap(struct fb_info *info, struct vm_area_struct *vma) | |
1212 | { | |
1213 | struct omapfb_plane_struct *plane = info->par; | |
1214 | struct omapfb_device *fbdev = plane->fbdev; | |
1215 | int r; | |
1216 | ||
1217 | omapfb_rqueue_lock(fbdev); | |
1218 | r = fbdev->ctrl->mmap(info, vma); | |
1219 | omapfb_rqueue_unlock(fbdev); | |
1220 | ||
1221 | return r; | |
1222 | } | |
1223 | ||
1224 | /* | |
1225 | * Callback table for the frame buffer framework. Some of these pointers | |
1226 | * will be changed according to the current setting of fb_info->accel_flags. | |
1227 | */ | |
1228 | static struct fb_ops omapfb_ops = { | |
1229 | .owner = THIS_MODULE, | |
1230 | .fb_open = omapfb_open, | |
1231 | .fb_release = omapfb_release, | |
1232 | .fb_setcolreg = omapfb_setcolreg, | |
1233 | .fb_setcmap = omapfb_setcmap, | |
1234 | .fb_fillrect = cfb_fillrect, | |
1235 | .fb_copyarea = cfb_copyarea, | |
1236 | .fb_imageblit = cfb_imageblit, | |
1237 | .fb_blank = omapfb_blank, | |
1238 | .fb_ioctl = omapfb_ioctl, | |
1239 | .fb_check_var = omapfb_check_var, | |
1240 | .fb_set_par = omapfb_set_par, | |
8b08cf2b ID |
1241 | .fb_pan_display = omapfb_pan_display, |
1242 | }; | |
1243 | ||
1244 | /* | |
1245 | * --------------------------------------------------------------------------- | |
1246 | * Sysfs interface | |
1247 | * --------------------------------------------------------------------------- | |
1248 | */ | |
1249 | /* omapfbX sysfs entries */ | |
1250 | static ssize_t omapfb_show_caps_num(struct device *dev, | |
1251 | struct device_attribute *attr, char *buf) | |
1252 | { | |
5e9a8bd6 | 1253 | struct omapfb_device *fbdev = dev_get_drvdata(dev); |
8b08cf2b ID |
1254 | int plane; |
1255 | size_t size; | |
1256 | struct omapfb_caps caps; | |
1257 | ||
1258 | plane = 0; | |
1259 | size = 0; | |
1260 | while (size < PAGE_SIZE && plane < OMAPFB_PLANE_NUM) { | |
1261 | omapfb_get_caps(fbdev, plane, &caps); | |
1262 | size += snprintf(&buf[size], PAGE_SIZE - size, | |
1263 | "plane#%d %#010x %#010x %#010x\n", | |
1264 | plane, caps.ctrl, caps.plane_color, caps.wnd_color); | |
1265 | plane++; | |
1266 | } | |
1267 | return size; | |
1268 | } | |
1269 | ||
1270 | static ssize_t omapfb_show_caps_text(struct device *dev, | |
1271 | struct device_attribute *attr, char *buf) | |
1272 | { | |
5e9a8bd6 | 1273 | struct omapfb_device *fbdev = dev_get_drvdata(dev); |
8b08cf2b ID |
1274 | int i; |
1275 | struct omapfb_caps caps; | |
1276 | int plane; | |
1277 | size_t size; | |
1278 | ||
1279 | plane = 0; | |
1280 | size = 0; | |
1281 | while (size < PAGE_SIZE && plane < OMAPFB_PLANE_NUM) { | |
1282 | omapfb_get_caps(fbdev, plane, &caps); | |
1283 | size += snprintf(&buf[size], PAGE_SIZE - size, | |
1284 | "plane#%d:\n", plane); | |
1285 | for (i = 0; i < ARRAY_SIZE(ctrl_caps) && | |
1286 | size < PAGE_SIZE; i++) { | |
1287 | if (ctrl_caps[i].flag & caps.ctrl) | |
1288 | size += snprintf(&buf[size], PAGE_SIZE - size, | |
1289 | " %s\n", ctrl_caps[i].name); | |
1290 | } | |
1291 | size += snprintf(&buf[size], PAGE_SIZE - size, | |
1292 | " plane colors:\n"); | |
1293 | for (i = 0; i < ARRAY_SIZE(color_caps) && | |
1294 | size < PAGE_SIZE; i++) { | |
1295 | if (color_caps[i].flag & caps.plane_color) | |
1296 | size += snprintf(&buf[size], PAGE_SIZE - size, | |
1297 | " %s\n", color_caps[i].name); | |
1298 | } | |
1299 | size += snprintf(&buf[size], PAGE_SIZE - size, | |
1300 | " window colors:\n"); | |
1301 | for (i = 0; i < ARRAY_SIZE(color_caps) && | |
1302 | size < PAGE_SIZE; i++) { | |
1303 | if (color_caps[i].flag & caps.wnd_color) | |
1304 | size += snprintf(&buf[size], PAGE_SIZE - size, | |
1305 | " %s\n", color_caps[i].name); | |
1306 | } | |
1307 | ||
1308 | plane++; | |
1309 | } | |
1310 | return size; | |
1311 | } | |
1312 | ||
1313 | static DEVICE_ATTR(caps_num, 0444, omapfb_show_caps_num, NULL); | |
1314 | static DEVICE_ATTR(caps_text, 0444, omapfb_show_caps_text, NULL); | |
1315 | ||
1316 | /* panel sysfs entries */ | |
1317 | static ssize_t omapfb_show_panel_name(struct device *dev, | |
1318 | struct device_attribute *attr, char *buf) | |
1319 | { | |
5e9a8bd6 | 1320 | struct omapfb_device *fbdev = dev_get_drvdata(dev); |
8b08cf2b ID |
1321 | |
1322 | return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->panel->name); | |
1323 | } | |
1324 | ||
1325 | static ssize_t omapfb_show_bklight_level(struct device *dev, | |
1326 | struct device_attribute *attr, | |
1327 | char *buf) | |
1328 | { | |
5e9a8bd6 | 1329 | struct omapfb_device *fbdev = dev_get_drvdata(dev); |
8b08cf2b ID |
1330 | int r; |
1331 | ||
1332 | if (fbdev->panel->get_bklight_level) { | |
1333 | r = snprintf(buf, PAGE_SIZE, "%d\n", | |
1334 | fbdev->panel->get_bklight_level(fbdev->panel)); | |
1335 | } else | |
1336 | r = -ENODEV; | |
1337 | return r; | |
1338 | } | |
1339 | ||
1340 | static ssize_t omapfb_store_bklight_level(struct device *dev, | |
1341 | struct device_attribute *attr, | |
1342 | const char *buf, size_t size) | |
1343 | { | |
5e9a8bd6 | 1344 | struct omapfb_device *fbdev = dev_get_drvdata(dev); |
8b08cf2b ID |
1345 | int r; |
1346 | ||
1347 | if (fbdev->panel->set_bklight_level) { | |
1348 | unsigned int level; | |
1349 | ||
1350 | if (sscanf(buf, "%10d", &level) == 1) { | |
1351 | r = fbdev->panel->set_bklight_level(fbdev->panel, | |
1352 | level); | |
1353 | } else | |
1354 | r = -EINVAL; | |
1355 | } else | |
1356 | r = -ENODEV; | |
1357 | return r ? r : size; | |
1358 | } | |
1359 | ||
1360 | static ssize_t omapfb_show_bklight_max(struct device *dev, | |
1361 | struct device_attribute *attr, char *buf) | |
1362 | { | |
5e9a8bd6 | 1363 | struct omapfb_device *fbdev = dev_get_drvdata(dev); |
8b08cf2b ID |
1364 | int r; |
1365 | ||
1366 | if (fbdev->panel->get_bklight_level) { | |
1367 | r = snprintf(buf, PAGE_SIZE, "%d\n", | |
1368 | fbdev->panel->get_bklight_max(fbdev->panel)); | |
1369 | } else | |
1370 | r = -ENODEV; | |
1371 | return r; | |
1372 | } | |
1373 | ||
1374 | static struct device_attribute dev_attr_panel_name = | |
1375 | __ATTR(name, 0444, omapfb_show_panel_name, NULL); | |
1376 | static DEVICE_ATTR(backlight_level, 0664, | |
1377 | omapfb_show_bklight_level, omapfb_store_bklight_level); | |
1378 | static DEVICE_ATTR(backlight_max, 0444, omapfb_show_bklight_max, NULL); | |
1379 | ||
1380 | static struct attribute *panel_attrs[] = { | |
1381 | &dev_attr_panel_name.attr, | |
1382 | &dev_attr_backlight_level.attr, | |
1383 | &dev_attr_backlight_max.attr, | |
1384 | NULL, | |
1385 | }; | |
1386 | ||
1387 | static struct attribute_group panel_attr_grp = { | |
1388 | .name = "panel", | |
1389 | .attrs = panel_attrs, | |
1390 | }; | |
1391 | ||
1392 | /* ctrl sysfs entries */ | |
1393 | static ssize_t omapfb_show_ctrl_name(struct device *dev, | |
1394 | struct device_attribute *attr, char *buf) | |
1395 | { | |
5e9a8bd6 | 1396 | struct omapfb_device *fbdev = dev_get_drvdata(dev); |
8b08cf2b ID |
1397 | |
1398 | return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->ctrl->name); | |
1399 | } | |
1400 | ||
1401 | static struct device_attribute dev_attr_ctrl_name = | |
1402 | __ATTR(name, 0444, omapfb_show_ctrl_name, NULL); | |
1403 | ||
1404 | static struct attribute *ctrl_attrs[] = { | |
1405 | &dev_attr_ctrl_name.attr, | |
1406 | NULL, | |
1407 | }; | |
1408 | ||
1409 | static struct attribute_group ctrl_attr_grp = { | |
1410 | .name = "ctrl", | |
1411 | .attrs = ctrl_attrs, | |
1412 | }; | |
1413 | ||
1414 | static int omapfb_register_sysfs(struct omapfb_device *fbdev) | |
1415 | { | |
1416 | int r; | |
1417 | ||
1418 | if ((r = device_create_file(fbdev->dev, &dev_attr_caps_num))) | |
1419 | goto fail0; | |
1420 | ||
1421 | if ((r = device_create_file(fbdev->dev, &dev_attr_caps_text))) | |
1422 | goto fail1; | |
1423 | ||
1424 | if ((r = sysfs_create_group(&fbdev->dev->kobj, &panel_attr_grp))) | |
1425 | goto fail2; | |
1426 | ||
1427 | if ((r = sysfs_create_group(&fbdev->dev->kobj, &ctrl_attr_grp))) | |
1428 | goto fail3; | |
1429 | ||
1430 | return 0; | |
1431 | fail3: | |
1432 | sysfs_remove_group(&fbdev->dev->kobj, &panel_attr_grp); | |
1433 | fail2: | |
1434 | device_remove_file(fbdev->dev, &dev_attr_caps_text); | |
1435 | fail1: | |
1436 | device_remove_file(fbdev->dev, &dev_attr_caps_num); | |
1437 | fail0: | |
1438 | dev_err(fbdev->dev, "unable to register sysfs interface\n"); | |
1439 | return r; | |
1440 | } | |
1441 | ||
1442 | static void omapfb_unregister_sysfs(struct omapfb_device *fbdev) | |
1443 | { | |
1444 | sysfs_remove_group(&fbdev->dev->kobj, &ctrl_attr_grp); | |
1445 | sysfs_remove_group(&fbdev->dev->kobj, &panel_attr_grp); | |
1446 | device_remove_file(fbdev->dev, &dev_attr_caps_num); | |
1447 | device_remove_file(fbdev->dev, &dev_attr_caps_text); | |
1448 | } | |
1449 | ||
1450 | /* | |
1451 | * --------------------------------------------------------------------------- | |
1452 | * LDM callbacks | |
1453 | * --------------------------------------------------------------------------- | |
1454 | */ | |
1455 | /* Initialize system fb_info object and set the default video mode. | |
1456 | * The frame buffer memory already allocated by lcddma_init | |
1457 | */ | |
1458 | static int fbinfo_init(struct omapfb_device *fbdev, struct fb_info *info) | |
1459 | { | |
1460 | struct fb_var_screeninfo *var = &info->var; | |
1461 | struct fb_fix_screeninfo *fix = &info->fix; | |
1462 | int r = 0; | |
1463 | ||
1464 | info->fbops = &omapfb_ops; | |
1465 | info->flags = FBINFO_FLAG_DEFAULT; | |
1466 | ||
1467 | strncpy(fix->id, MODULE_NAME, sizeof(fix->id)); | |
1468 | ||
1469 | info->pseudo_palette = fbdev->pseudo_palette; | |
1470 | ||
1471 | var->accel_flags = def_accel ? FB_ACCELF_TEXT : 0; | |
1472 | var->xres = def_vxres; | |
1473 | var->yres = def_vyres; | |
1474 | var->xres_virtual = def_vxres; | |
1475 | var->yres_virtual = def_vyres; | |
1476 | var->rotate = def_rotate; | |
1477 | var->bits_per_pixel = fbdev->panel->bpp; | |
1478 | ||
1479 | set_fb_var(info, var); | |
03bb2b49 | 1480 | set_fb_fix(info, 1); |
8b08cf2b ID |
1481 | |
1482 | r = fb_alloc_cmap(&info->cmap, 16, 0); | |
1483 | if (r != 0) | |
1484 | dev_err(fbdev->dev, "unable to allocate color map memory\n"); | |
1485 | ||
1486 | return r; | |
1487 | } | |
1488 | ||
1489 | /* Release the fb_info object */ | |
1490 | static void fbinfo_cleanup(struct omapfb_device *fbdev, struct fb_info *fbi) | |
1491 | { | |
1492 | fb_dealloc_cmap(&fbi->cmap); | |
1493 | } | |
1494 | ||
1495 | static void planes_cleanup(struct omapfb_device *fbdev) | |
1496 | { | |
1497 | int i; | |
1498 | ||
1499 | for (i = 0; i < fbdev->mem_desc.region_cnt; i++) { | |
1500 | if (fbdev->fb_info[i] == NULL) | |
1501 | break; | |
1502 | fbinfo_cleanup(fbdev, fbdev->fb_info[i]); | |
1503 | framebuffer_release(fbdev->fb_info[i]); | |
1504 | } | |
1505 | } | |
1506 | ||
1507 | static int planes_init(struct omapfb_device *fbdev) | |
1508 | { | |
1509 | struct fb_info *fbi; | |
1510 | int i; | |
1511 | int r; | |
1512 | ||
1513 | for (i = 0; i < fbdev->mem_desc.region_cnt; i++) { | |
1514 | struct omapfb_plane_struct *plane; | |
1515 | fbi = framebuffer_alloc(sizeof(struct omapfb_plane_struct), | |
1516 | fbdev->dev); | |
1517 | if (fbi == NULL) { | |
1518 | dev_err(fbdev->dev, | |
1519 | "unable to allocate memory for plane info\n"); | |
1520 | planes_cleanup(fbdev); | |
1521 | return -ENOMEM; | |
1522 | } | |
1523 | plane = fbi->par; | |
1524 | plane->idx = i; | |
1525 | plane->fbdev = fbdev; | |
1526 | plane->info.mirror = def_mirror; | |
1527 | fbdev->fb_info[i] = fbi; | |
1528 | ||
1529 | if ((r = fbinfo_init(fbdev, fbi)) < 0) { | |
1530 | framebuffer_release(fbi); | |
1531 | planes_cleanup(fbdev); | |
1532 | return r; | |
1533 | } | |
1534 | plane->info.out_width = fbi->var.xres; | |
1535 | plane->info.out_height = fbi->var.yres; | |
1536 | } | |
1537 | return 0; | |
1538 | } | |
1539 | ||
1540 | /* | |
1541 | * Free driver resources. Can be called to rollback an aborted initialization | |
1542 | * sequence. | |
1543 | */ | |
1544 | static void omapfb_free_resources(struct omapfb_device *fbdev, int state) | |
1545 | { | |
1546 | int i; | |
1547 | ||
1548 | switch (state) { | |
1549 | case OMAPFB_ACTIVE: | |
1550 | for (i = 0; i < fbdev->mem_desc.region_cnt; i++) | |
1551 | unregister_framebuffer(fbdev->fb_info[i]); | |
1552 | case 7: | |
1553 | omapfb_unregister_sysfs(fbdev); | |
1554 | case 6: | |
561eb9d0 LPC |
1555 | if (fbdev->panel->disable) |
1556 | fbdev->panel->disable(fbdev->panel); | |
8b08cf2b ID |
1557 | case 5: |
1558 | omapfb_set_update_mode(fbdev, OMAPFB_UPDATE_DISABLED); | |
1559 | case 4: | |
1560 | planes_cleanup(fbdev); | |
1561 | case 3: | |
1562 | ctrl_cleanup(fbdev); | |
1563 | case 2: | |
561eb9d0 LPC |
1564 | if (fbdev->panel->cleanup) |
1565 | fbdev->panel->cleanup(fbdev->panel); | |
8b08cf2b ID |
1566 | case 1: |
1567 | dev_set_drvdata(fbdev->dev, NULL); | |
1568 | kfree(fbdev); | |
1569 | case 0: | |
1570 | /* nothing to free */ | |
1571 | break; | |
1572 | default: | |
1573 | BUG(); | |
1574 | } | |
1575 | } | |
1576 | ||
1577 | static int omapfb_find_ctrl(struct omapfb_device *fbdev) | |
1578 | { | |
1579 | struct omapfb_platform_data *conf; | |
1580 | char name[17]; | |
1581 | int i; | |
1582 | ||
dffb3b47 | 1583 | conf = dev_get_platdata(fbdev->dev); |
8b08cf2b ID |
1584 | |
1585 | fbdev->ctrl = NULL; | |
1586 | ||
1587 | strncpy(name, conf->lcd.ctrl_name, sizeof(name) - 1); | |
1588 | name[sizeof(name) - 1] = '\0'; | |
1589 | ||
1590 | if (strcmp(name, "internal") == 0) { | |
1591 | fbdev->ctrl = fbdev->int_ctrl; | |
1592 | return 0; | |
1593 | } | |
1594 | ||
1595 | for (i = 0; i < ARRAY_SIZE(ctrls); i++) { | |
1596 | dev_dbg(fbdev->dev, "ctrl %s\n", ctrls[i]->name); | |
1597 | if (strcmp(ctrls[i]->name, name) == 0) { | |
1598 | fbdev->ctrl = ctrls[i]; | |
1599 | break; | |
1600 | } | |
1601 | } | |
1602 | ||
1603 | if (fbdev->ctrl == NULL) { | |
1604 | dev_dbg(fbdev->dev, "ctrl %s not supported\n", name); | |
1605 | return -1; | |
1606 | } | |
1607 | ||
1608 | return 0; | |
1609 | } | |
1610 | ||
8b08cf2b ID |
1611 | /* |
1612 | * Called by LDM binding to probe and attach a new device. | |
1613 | * Initialization sequence: | |
1614 | * 1. allocate system omapfb_device structure | |
1615 | * 2. select controller type according to platform configuration | |
1616 | * init LCD panel | |
1617 | * 3. init LCD controller and LCD DMA | |
1618 | * 4. init system fb_info structure for all planes | |
1619 | * 5. setup video mode for first plane and enable it | |
1620 | * 6. enable LCD panel | |
1621 | * 7. register sysfs attributes | |
1622 | * OMAPFB_ACTIVE: register system fb_info structure for all planes | |
1623 | */ | |
1624 | static int omapfb_do_probe(struct platform_device *pdev, | |
1625 | struct lcd_panel *panel) | |
1626 | { | |
1627 | struct omapfb_device *fbdev = NULL; | |
1628 | int init_state; | |
1629 | unsigned long phz, hhz, vhz; | |
1630 | unsigned long vram; | |
1631 | int i; | |
1632 | int r = 0; | |
1633 | ||
1634 | init_state = 0; | |
1635 | ||
1636 | if (pdev->num_resources != 0) { | |
1637 | dev_err(&pdev->dev, "probed for an unknown device\n"); | |
1638 | r = -ENODEV; | |
1639 | goto cleanup; | |
1640 | } | |
1641 | ||
dffb3b47 | 1642 | if (dev_get_platdata(&pdev->dev) == NULL) { |
8b08cf2b ID |
1643 | dev_err(&pdev->dev, "missing platform data\n"); |
1644 | r = -ENOENT; | |
1645 | goto cleanup; | |
1646 | } | |
1647 | ||
1648 | fbdev = kzalloc(sizeof(struct omapfb_device), GFP_KERNEL); | |
1649 | if (fbdev == NULL) { | |
1650 | dev_err(&pdev->dev, | |
1651 | "unable to allocate memory for device info\n"); | |
1652 | r = -ENOMEM; | |
1653 | goto cleanup; | |
1654 | } | |
1655 | init_state++; | |
1656 | ||
1657 | fbdev->dev = &pdev->dev; | |
1658 | fbdev->panel = panel; | |
f778a12d | 1659 | fbdev->dssdev = &omapdss_device; |
8b08cf2b ID |
1660 | platform_set_drvdata(pdev, fbdev); |
1661 | ||
1662 | mutex_init(&fbdev->rqueue_mutex); | |
1663 | ||
8b08cf2b ID |
1664 | fbdev->int_ctrl = &omap1_int_ctrl; |
1665 | #ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL | |
1666 | fbdev->ext_if = &omap1_ext_if; | |
8b08cf2b ID |
1667 | #endif |
1668 | if (omapfb_find_ctrl(fbdev) < 0) { | |
1669 | dev_err(fbdev->dev, | |
1670 | "LCD controller not found, board not supported\n"); | |
1671 | r = -ENODEV; | |
1672 | goto cleanup; | |
1673 | } | |
1674 | ||
561eb9d0 LPC |
1675 | if (fbdev->panel->init) { |
1676 | r = fbdev->panel->init(fbdev->panel, fbdev); | |
1677 | if (r) | |
1678 | goto cleanup; | |
1679 | } | |
8b08cf2b ID |
1680 | |
1681 | pr_info("omapfb: configured for panel %s\n", fbdev->panel->name); | |
1682 | ||
5910d35c | 1683 | def_vxres = def_vxres ? def_vxres : fbdev->panel->x_res; |
1684 | def_vyres = def_vyres ? def_vyres : fbdev->panel->y_res; | |
8b08cf2b ID |
1685 | |
1686 | init_state++; | |
1687 | ||
1688 | r = ctrl_init(fbdev); | |
1689 | if (r) | |
1690 | goto cleanup; | |
1691 | if (fbdev->ctrl->mmap != NULL) | |
1692 | omapfb_ops.fb_mmap = omapfb_mmap; | |
1693 | init_state++; | |
1694 | ||
8b08cf2b ID |
1695 | r = planes_init(fbdev); |
1696 | if (r) | |
1697 | goto cleanup; | |
1698 | init_state++; | |
1699 | ||
1700 | #ifdef CONFIG_FB_OMAP_DMA_TUNE | |
1701 | /* Set DMA priority for EMIFF access to highest */ | |
ae7e1f2d | 1702 | omap_set_dma_priority(0, OMAP_DMA_PORT_EMIFF, 15); |
8b08cf2b ID |
1703 | #endif |
1704 | ||
1705 | r = ctrl_change_mode(fbdev->fb_info[0]); | |
1706 | if (r) { | |
1707 | dev_err(fbdev->dev, "mode setting failed\n"); | |
1708 | goto cleanup; | |
1709 | } | |
1710 | ||
1711 | /* GFX plane is enabled by default */ | |
1712 | r = fbdev->ctrl->enable_plane(OMAPFB_PLANE_GFX, 1); | |
1713 | if (r) | |
1714 | goto cleanup; | |
1715 | ||
1716 | omapfb_set_update_mode(fbdev, manual_update ? | |
1717 | OMAPFB_MANUAL_UPDATE : OMAPFB_AUTO_UPDATE); | |
1718 | init_state++; | |
1719 | ||
561eb9d0 LPC |
1720 | if (fbdev->panel->enable) { |
1721 | r = fbdev->panel->enable(fbdev->panel); | |
1722 | if (r) | |
1723 | goto cleanup; | |
1724 | } | |
8b08cf2b ID |
1725 | init_state++; |
1726 | ||
1727 | r = omapfb_register_sysfs(fbdev); | |
1728 | if (r) | |
1729 | goto cleanup; | |
1730 | init_state++; | |
1731 | ||
1732 | vram = 0; | |
1733 | for (i = 0; i < fbdev->mem_desc.region_cnt; i++) { | |
1734 | r = register_framebuffer(fbdev->fb_info[i]); | |
1735 | if (r != 0) { | |
1736 | dev_err(fbdev->dev, | |
1737 | "registering framebuffer %d failed\n", i); | |
1738 | goto cleanup; | |
1739 | } | |
1740 | vram += fbdev->mem_desc.region[i].size; | |
1741 | } | |
1742 | ||
1743 | fbdev->state = OMAPFB_ACTIVE; | |
1744 | ||
1745 | panel = fbdev->panel; | |
1746 | phz = panel->pixel_clock * 1000; | |
1747 | hhz = phz * 10 / (panel->hfp + panel->x_res + panel->hbp + panel->hsw); | |
1748 | vhz = hhz / (panel->vfp + panel->y_res + panel->vbp + panel->vsw); | |
1749 | ||
1750 | omapfb_dev = fbdev; | |
1751 | ||
1752 | pr_info("omapfb: Framebuffer initialized. Total vram %lu planes %d\n", | |
1753 | vram, fbdev->mem_desc.region_cnt); | |
1754 | pr_info("omapfb: Pixclock %lu kHz hfreq %lu.%lu kHz " | |
1755 | "vfreq %lu.%lu Hz\n", | |
1756 | phz / 1000, hhz / 10000, hhz % 10, vhz / 10, vhz % 10); | |
1757 | ||
1758 | return 0; | |
1759 | ||
1760 | cleanup: | |
1761 | omapfb_free_resources(fbdev, init_state); | |
1762 | ||
1763 | return r; | |
1764 | } | |
1765 | ||
1766 | static int omapfb_probe(struct platform_device *pdev) | |
1767 | { | |
f778a12d TV |
1768 | int r; |
1769 | ||
8b08cf2b ID |
1770 | BUG_ON(fbdev_pdev != NULL); |
1771 | ||
f778a12d TV |
1772 | r = platform_device_register(&omapdss_device); |
1773 | if (r) { | |
1774 | dev_err(&pdev->dev, "can't register omapdss device\n"); | |
1775 | return r; | |
1776 | } | |
1777 | ||
8b08cf2b ID |
1778 | /* Delay actual initialization until the LCD is registered */ |
1779 | fbdev_pdev = pdev; | |
1780 | if (fbdev_panel != NULL) | |
1781 | omapfb_do_probe(fbdev_pdev, fbdev_panel); | |
1782 | return 0; | |
1783 | } | |
1784 | ||
1785 | void omapfb_register_panel(struct lcd_panel *panel) | |
1786 | { | |
1787 | BUG_ON(fbdev_panel != NULL); | |
1788 | ||
1789 | fbdev_panel = panel; | |
1790 | if (fbdev_pdev != NULL) | |
1791 | omapfb_do_probe(fbdev_pdev, fbdev_panel); | |
1792 | } | |
81c44c2b | 1793 | EXPORT_SYMBOL_GPL(omapfb_register_panel); |
8b08cf2b ID |
1794 | |
1795 | /* Called when the device is being detached from the driver */ | |
1796 | static int omapfb_remove(struct platform_device *pdev) | |
1797 | { | |
1798 | struct omapfb_device *fbdev = platform_get_drvdata(pdev); | |
1799 | enum omapfb_state saved_state = fbdev->state; | |
1800 | ||
1801 | /* FIXME: wait till completion of pending events */ | |
1802 | ||
1803 | fbdev->state = OMAPFB_DISABLED; | |
1804 | omapfb_free_resources(fbdev, saved_state); | |
1805 | ||
f778a12d TV |
1806 | platform_device_unregister(&omapdss_device); |
1807 | fbdev->dssdev = NULL; | |
1808 | ||
8b08cf2b ID |
1809 | return 0; |
1810 | } | |
1811 | ||
1812 | /* PM suspend */ | |
1813 | static int omapfb_suspend(struct platform_device *pdev, pm_message_t mesg) | |
1814 | { | |
1815 | struct omapfb_device *fbdev = platform_get_drvdata(pdev); | |
1816 | ||
b6c2b66d JH |
1817 | if (fbdev != NULL) |
1818 | omapfb_blank(FB_BLANK_POWERDOWN, fbdev->fb_info[0]); | |
8b08cf2b ID |
1819 | return 0; |
1820 | } | |
1821 | ||
1822 | /* PM resume */ | |
1823 | static int omapfb_resume(struct platform_device *pdev) | |
1824 | { | |
1825 | struct omapfb_device *fbdev = platform_get_drvdata(pdev); | |
1826 | ||
b6c2b66d JH |
1827 | if (fbdev != NULL) |
1828 | omapfb_blank(FB_BLANK_UNBLANK, fbdev->fb_info[0]); | |
8b08cf2b ID |
1829 | return 0; |
1830 | } | |
1831 | ||
1832 | static struct platform_driver omapfb_driver = { | |
1833 | .probe = omapfb_probe, | |
1834 | .remove = omapfb_remove, | |
1835 | .suspend = omapfb_suspend, | |
1836 | .resume = omapfb_resume, | |
1837 | .driver = { | |
1838 | .name = MODULE_NAME, | |
8b08cf2b ID |
1839 | }, |
1840 | }; | |
1841 | ||
1842 | #ifndef MODULE | |
1843 | ||
1844 | /* Process kernel command line parameters */ | |
1845 | static int __init omapfb_setup(char *options) | |
1846 | { | |
1847 | char *this_opt = NULL; | |
1848 | int r = 0; | |
1849 | ||
1850 | pr_debug("omapfb: options %s\n", options); | |
1851 | ||
1852 | if (!options || !*options) | |
1853 | return 0; | |
1854 | ||
1855 | while (!r && (this_opt = strsep(&options, ",")) != NULL) { | |
1856 | if (!strncmp(this_opt, "accel", 5)) | |
1857 | def_accel = 1; | |
1858 | else if (!strncmp(this_opt, "vram:", 5)) { | |
1859 | char *suffix; | |
1860 | unsigned long vram; | |
1861 | vram = (simple_strtoul(this_opt + 5, &suffix, 0)); | |
1862 | switch (suffix[0]) { | |
1863 | case '\0': | |
1864 | break; | |
1865 | case 'm': | |
1866 | case 'M': | |
1867 | vram *= 1024; | |
1868 | /* Fall through */ | |
1869 | case 'k': | |
1870 | case 'K': | |
1871 | vram *= 1024; | |
1872 | break; | |
1873 | default: | |
1874 | pr_debug("omapfb: invalid vram suffix %c\n", | |
1875 | suffix[0]); | |
1876 | r = -1; | |
1877 | } | |
1878 | def_vram[def_vram_cnt++] = vram; | |
1879 | } | |
1880 | else if (!strncmp(this_opt, "vxres:", 6)) | |
1881 | def_vxres = simple_strtoul(this_opt + 6, NULL, 0); | |
1882 | else if (!strncmp(this_opt, "vyres:", 6)) | |
1883 | def_vyres = simple_strtoul(this_opt + 6, NULL, 0); | |
1884 | else if (!strncmp(this_opt, "rotate:", 7)) | |
1885 | def_rotate = (simple_strtoul(this_opt + 7, NULL, 0)); | |
1886 | else if (!strncmp(this_opt, "mirror:", 7)) | |
1887 | def_mirror = (simple_strtoul(this_opt + 7, NULL, 0)); | |
1888 | else if (!strncmp(this_opt, "manual_update", 13)) | |
1889 | manual_update = 1; | |
1890 | else { | |
1891 | pr_debug("omapfb: invalid option\n"); | |
1892 | r = -1; | |
1893 | } | |
1894 | } | |
1895 | ||
1896 | return r; | |
1897 | } | |
1898 | ||
1899 | #endif | |
1900 | ||
1901 | /* Register both the driver and the device */ | |
1902 | static int __init omapfb_init(void) | |
1903 | { | |
1904 | #ifndef MODULE | |
1905 | char *option; | |
1906 | ||
1907 | if (fb_get_options("omapfb", &option)) | |
1908 | return -ENODEV; | |
1909 | omapfb_setup(option); | |
1910 | #endif | |
1911 | /* Register the driver with LDM */ | |
1912 | if (platform_driver_register(&omapfb_driver)) { | |
1913 | pr_debug("failed to register omapfb driver\n"); | |
1914 | return -ENODEV; | |
1915 | } | |
1916 | ||
1917 | return 0; | |
1918 | } | |
1919 | ||
1920 | static void __exit omapfb_cleanup(void) | |
1921 | { | |
1922 | platform_driver_unregister(&omapfb_driver); | |
1923 | } | |
1924 | ||
1925 | module_param_named(accel, def_accel, uint, 0664); | |
1926 | module_param_array_named(vram, def_vram, ulong, &def_vram_cnt, 0664); | |
1927 | module_param_named(vxres, def_vxres, long, 0664); | |
1928 | module_param_named(vyres, def_vyres, long, 0664); | |
1929 | module_param_named(rotate, def_rotate, uint, 0664); | |
1930 | module_param_named(mirror, def_mirror, uint, 0664); | |
1931 | module_param_named(manual_update, manual_update, bool, 0664); | |
1932 | ||
1933 | module_init(omapfb_init); | |
1934 | module_exit(omapfb_cleanup); | |
1935 | ||
1936 | MODULE_DESCRIPTION("TI OMAP framebuffer driver"); | |
1937 | MODULE_AUTHOR("Imre Deak <imre.deak@nokia.com>"); | |
1938 | MODULE_LICENSE("GPL"); |