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9d200153 SM |
1 | /* |
2 | * | |
3 | * Core MSM framebuffer driver. | |
4 | * | |
5 | * Copyright (C) 2007 Google Incorporated | |
6 | * Copyright (c) 2008-2010, Code Aurora Forum. All rights reserved. | |
7 | * | |
8 | * This software is licensed under the terms of the GNU General Public | |
9 | * License version 2, as published by the Free Software Foundation, and | |
10 | * may be copied, distributed, and modified under those terms. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | */ | |
17 | ||
18 | #include <linux/module.h> | |
19 | #include <linux/moduleparam.h> | |
20 | #include <linux/kernel.h> | |
21 | #include <linux/slab.h> | |
22 | #include <linux/delay.h> | |
23 | #include <linux/mm.h> | |
24 | #include <linux/fb.h> | |
25 | #include "msm_mdp.h" | |
26 | #include <linux/init.h> | |
27 | #include <linux/ioport.h> | |
28 | #include <linux/device.h> | |
29 | #include <linux/dma-mapping.h> | |
30 | #include <mach/board.h> | |
31 | #include <linux/uaccess.h> | |
32 | ||
33 | #include <linux/workqueue.h> | |
34 | #include <linux/string.h> | |
35 | #include <linux/version.h> | |
36 | #include <linux/proc_fs.h> | |
37 | #include <linux/vmalloc.h> | |
38 | #include <linux/debugfs.h> | |
39 | #include <linux/console.h> | |
40 | #include <linux/leds.h> | |
41 | #include <asm/dma-mapping.h> | |
42 | ||
43 | ||
44 | #define MSM_FB_C | |
45 | #include "msm_fb.h" | |
46 | #include "mddihosti.h" | |
47 | #include "tvenc.h" | |
48 | #include "mdp.h" | |
49 | #include "mdp4.h" | |
50 | ||
51 | #ifdef CONFIG_FB_MSM_LOGO | |
52 | #define INIT_IMAGE_FILE "/logo.rle" | |
53 | extern int load_565rle_image(char *filename); | |
54 | #endif | |
55 | ||
56 | ||
57 | #define pgprot_noncached(prot) \ | |
58 | __pgprot_modify(prot, L_PTE_MT_MASK, L_PTE_MT_UNCACHED) | |
59 | #define pgprot_writecombine(prot) \ | |
60 | __pgprot_modify(prot, L_PTE_MT_MASK, L_PTE_MT_BUFFERABLE) | |
61 | #define pgprot_device(prot) \ | |
62 | __pgprot_modify(prot, L_PTE_MT_MASK|L_PTE_EXEC, L_PTE_MT_DEV_NONSHARED) | |
63 | #define pgprot_writethroughcache(prot) \ | |
64 | __pgprot((pgprot_val(prot) & ~L_PTE_MT_MASK) | L_PTE_MT_WRITETHROUGH) | |
65 | #define pgprot_writebackcache(prot) \ | |
66 | __pgprot((pgprot_val(prot) & ~L_PTE_MT_MASK) | L_PTE_MT_WRITEBACK) | |
67 | #define pgprot_writebackwacache(prot) \ | |
68 | __pgprot((pgprot_val(prot) & ~L_PTE_MT_MASK) | L_PTE_MT_WRITEALLOC) | |
69 | ||
70 | static unsigned char *fbram; | |
71 | static unsigned char *fbram_phys; | |
72 | static int fbram_size; | |
73 | ||
74 | static struct platform_device *pdev_list[MSM_FB_MAX_DEV_LIST]; | |
75 | static int pdev_list_cnt; | |
76 | ||
77 | int vsync_mode = 1; | |
78 | ||
79 | #define MAX_FBI_LIST 32 | |
80 | static struct fb_info *fbi_list[MAX_FBI_LIST]; | |
81 | static int fbi_list_index; | |
82 | ||
83 | static struct msm_fb_data_type *mfd_list[MAX_FBI_LIST]; | |
84 | static int mfd_list_index; | |
85 | ||
86 | static u32 msm_fb_pseudo_palette[16] = { | |
87 | 0x00000000, 0xffffffff, 0xffffffff, 0xffffffff, | |
88 | 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, | |
89 | 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, | |
90 | 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff | |
91 | }; | |
92 | ||
93 | u32 msm_fb_debug_enabled; | |
94 | /* Setting msm_fb_msg_level to 8 prints out ALL messages */ | |
95 | u32 msm_fb_msg_level = 7; | |
96 | ||
97 | /* Setting mddi_msg_level to 8 prints out ALL messages */ | |
98 | u32 mddi_msg_level = 5; | |
99 | ||
100 | extern int32 mdp_block_power_cnt[MDP_MAX_BLOCK]; | |
101 | extern unsigned long mdp_timer_duration; | |
102 | ||
103 | static int msm_fb_register(struct msm_fb_data_type *mfd); | |
104 | static int msm_fb_open(struct fb_info *info, int user); | |
105 | static int msm_fb_release(struct fb_info *info, int user); | |
106 | static int msm_fb_pan_display(struct fb_var_screeninfo *var, | |
107 | struct fb_info *info); | |
108 | static int msm_fb_stop_sw_refresher(struct msm_fb_data_type *mfd); | |
109 | int msm_fb_resume_sw_refresher(struct msm_fb_data_type *mfd); | |
110 | static int msm_fb_check_var(struct fb_var_screeninfo *var, | |
111 | struct fb_info *info); | |
112 | static int msm_fb_set_par(struct fb_info *info); | |
113 | static int msm_fb_blank_sub(int blank_mode, struct fb_info *info, | |
114 | boolean op_enable); | |
115 | static int msm_fb_suspend_sub(struct msm_fb_data_type *mfd); | |
116 | static int msm_fb_resume_sub(struct msm_fb_data_type *mfd); | |
117 | static int msm_fb_ioctl(struct fb_info *info, unsigned int cmd, | |
118 | unsigned long arg); | |
119 | static int msm_fb_mmap(struct fb_info *info, struct vm_area_struct * vma); | |
120 | ||
121 | #ifdef MSM_FB_ENABLE_DBGFS | |
122 | ||
123 | #define MSM_FB_MAX_DBGFS 1024 | |
124 | #define MAX_BACKLIGHT_BRIGHTNESS 255 | |
125 | ||
126 | int msm_fb_debugfs_file_index; | |
127 | struct dentry *msm_fb_debugfs_root; | |
128 | struct dentry *msm_fb_debugfs_file[MSM_FB_MAX_DBGFS]; | |
129 | ||
130 | struct dentry *msm_fb_get_debugfs_root(void) | |
131 | { | |
132 | if (msm_fb_debugfs_root == NULL) | |
133 | msm_fb_debugfs_root = debugfs_create_dir("msm_fb", NULL); | |
134 | ||
135 | return msm_fb_debugfs_root; | |
136 | } | |
137 | ||
138 | void msm_fb_debugfs_file_create(struct dentry *root, const char *name, | |
139 | u32 *var) | |
140 | { | |
141 | if (msm_fb_debugfs_file_index >= MSM_FB_MAX_DBGFS) | |
142 | return; | |
143 | ||
144 | msm_fb_debugfs_file[msm_fb_debugfs_file_index++] = | |
145 | debugfs_create_u32(name, S_IRUGO | S_IWUSR, root, var); | |
146 | } | |
147 | #endif | |
148 | ||
149 | int msm_fb_cursor(struct fb_info *info, struct fb_cursor *cursor) | |
150 | { | |
151 | struct msm_fb_data_type *mfd = (struct msm_fb_data_type *)info->par; | |
152 | ||
153 | if (!mfd->cursor_update) | |
154 | return -ENODEV; | |
155 | ||
156 | return mfd->cursor_update(info, cursor); | |
157 | } | |
158 | ||
159 | static int msm_fb_resource_initialized; | |
160 | ||
161 | #ifndef CONFIG_FB_BACKLIGHT | |
162 | static int lcd_backlight_registered; | |
163 | ||
164 | static void msm_fb_set_bl_brightness(struct led_classdev *led_cdev, | |
165 | enum led_brightness value) | |
166 | { | |
167 | struct msm_fb_data_type *mfd = dev_get_drvdata(led_cdev->dev->parent); | |
168 | int bl_lvl; | |
169 | ||
170 | if (value > MAX_BACKLIGHT_BRIGHTNESS) | |
171 | value = MAX_BACKLIGHT_BRIGHTNESS; | |
172 | ||
173 | /* This maps android backlight level 0 to 255 into | |
174 | driver backlight level 0 to bl_max with rounding */ | |
175 | bl_lvl = (2 * value * mfd->panel_info.bl_max + MAX_BACKLIGHT_BRIGHTNESS) | |
176 | /(2 * MAX_BACKLIGHT_BRIGHTNESS); | |
177 | ||
178 | if (!bl_lvl && value) | |
179 | bl_lvl = 1; | |
180 | ||
181 | msm_fb_set_backlight(mfd, bl_lvl, 1); | |
182 | } | |
183 | ||
184 | static struct led_classdev backlight_led = { | |
185 | .name = "lcd-backlight", | |
186 | .brightness = MAX_BACKLIGHT_BRIGHTNESS, | |
187 | .brightness_set = msm_fb_set_bl_brightness, | |
188 | }; | |
189 | #endif | |
190 | ||
191 | static struct msm_fb_platform_data *msm_fb_pdata; | |
192 | ||
193 | int msm_fb_detect_client(const char *name) | |
194 | { | |
195 | int ret = -EPERM; | |
196 | #ifdef CONFIG_FB_MSM_MDDI_AUTO_DETECT | |
197 | u32 id; | |
198 | #endif | |
199 | ||
200 | if (msm_fb_pdata && msm_fb_pdata->detect_client) { | |
201 | ret = msm_fb_pdata->detect_client(name); | |
202 | ||
203 | /* if it's non mddi panel, we need to pre-scan | |
204 | mddi client to see if we can disable mddi host */ | |
205 | ||
206 | #ifdef CONFIG_FB_MSM_MDDI_AUTO_DETECT | |
207 | if (!ret && msm_fb_pdata->mddi_prescan) | |
208 | id = mddi_get_client_id(); | |
209 | #endif | |
210 | } | |
211 | ||
212 | return ret; | |
213 | } | |
214 | ||
215 | static int msm_fb_probe(struct platform_device *pdev) | |
216 | { | |
217 | struct msm_fb_data_type *mfd; | |
218 | int rc; | |
219 | ||
220 | MSM_FB_DEBUG("msm_fb_probe\n"); | |
221 | ||
222 | if ((pdev->id == 0) && (pdev->num_resources > 0)) { | |
223 | msm_fb_pdata = pdev->dev.platform_data; | |
224 | fbram_size = | |
225 | pdev->resource[0].end - pdev->resource[0].start + 1; | |
226 | fbram_phys = (char *)pdev->resource[0].start; | |
227 | fbram = ioremap((unsigned long)fbram_phys, fbram_size); | |
228 | ||
229 | if (!fbram) { | |
230 | printk(KERN_ERR "fbram ioremap failed!\n"); | |
231 | return -ENOMEM; | |
232 | } | |
233 | MSM_FB_INFO("msm_fb_probe: phy_Addr = 0x%x virt = 0x%x\n", | |
234 | (int)fbram_phys, (int)fbram); | |
235 | ||
236 | msm_fb_resource_initialized = 1; | |
237 | return 0; | |
238 | } | |
239 | ||
240 | if (!msm_fb_resource_initialized) | |
241 | return -EPERM; | |
242 | ||
243 | mfd = (struct msm_fb_data_type *)platform_get_drvdata(pdev); | |
244 | ||
245 | if (!mfd) | |
246 | return -ENODEV; | |
247 | ||
248 | if (mfd->key != MFD_KEY) | |
249 | return -EINVAL; | |
250 | ||
251 | if (pdev_list_cnt >= MSM_FB_MAX_DEV_LIST) | |
252 | return -ENOMEM; | |
253 | ||
254 | mfd->panel_info.frame_count = 0; | |
255 | mfd->bl_level = mfd->panel_info.bl_max; | |
256 | ||
257 | if (mfd->panel_info.type == LCDC_PANEL) | |
258 | mfd->allow_set_offset = | |
259 | msm_fb_pdata->allow_set_offset != NULL ? | |
260 | msm_fb_pdata->allow_set_offset() : 0; | |
261 | else | |
262 | mfd->allow_set_offset = 0; | |
263 | ||
264 | rc = msm_fb_register(mfd); | |
265 | if (rc) | |
266 | return rc; | |
267 | ||
268 | #ifdef CONFIG_FB_BACKLIGHT | |
269 | msm_fb_config_backlight(mfd); | |
270 | #else | |
271 | /* android supports only one lcd-backlight/lcd for now */ | |
272 | if (!lcd_backlight_registered) { | |
273 | if (led_classdev_register(&pdev->dev, &backlight_led)) | |
274 | printk(KERN_ERR "led_classdev_register failed\n"); | |
275 | else | |
276 | lcd_backlight_registered = 1; | |
277 | } | |
278 | #endif | |
279 | ||
280 | pdev_list[pdev_list_cnt++] = pdev; | |
281 | return 0; | |
282 | } | |
283 | ||
284 | static int msm_fb_remove(struct platform_device *pdev) | |
285 | { | |
286 | struct msm_fb_data_type *mfd; | |
287 | ||
288 | MSM_FB_DEBUG("msm_fb_remove\n"); | |
289 | ||
290 | mfd = (struct msm_fb_data_type *)platform_get_drvdata(pdev); | |
291 | ||
292 | if (!mfd) | |
293 | return -ENODEV; | |
294 | ||
295 | if (mfd->key != MFD_KEY) | |
296 | return -EINVAL; | |
297 | ||
298 | if (msm_fb_suspend_sub(mfd)) | |
299 | printk(KERN_ERR "msm_fb_remove: can't stop the device %d\n", mfd->index); | |
300 | ||
301 | if (mfd->channel_irq != 0) | |
302 | free_irq(mfd->channel_irq, (void *)mfd); | |
303 | ||
304 | if (mfd->vsync_width_boundary) | |
305 | vfree(mfd->vsync_width_boundary); | |
306 | ||
307 | if (mfd->vsync_resync_timer.function) | |
308 | del_timer(&mfd->vsync_resync_timer); | |
309 | ||
310 | if (mfd->refresh_timer.function) | |
311 | del_timer(&mfd->refresh_timer); | |
312 | ||
313 | if (mfd->dma_hrtimer.function) | |
314 | hrtimer_cancel(&mfd->dma_hrtimer); | |
315 | ||
316 | /* remove /dev/fb* */ | |
317 | unregister_framebuffer(mfd->fbi); | |
318 | ||
319 | #ifdef CONFIG_FB_BACKLIGHT | |
320 | /* remove /sys/class/backlight */ | |
321 | backlight_device_unregister(mfd->fbi->bl_dev); | |
322 | #else | |
323 | if (lcd_backlight_registered) { | |
324 | lcd_backlight_registered = 0; | |
325 | led_classdev_unregister(&backlight_led); | |
326 | } | |
327 | #endif | |
328 | ||
329 | #ifdef MSM_FB_ENABLE_DBGFS | |
330 | if (mfd->sub_dir) | |
331 | debugfs_remove(mfd->sub_dir); | |
332 | #endif | |
333 | ||
334 | return 0; | |
335 | } | |
336 | ||
337 | #if defined(CONFIG_PM) && !defined(CONFIG_HAS_EARLYSUSPEND) | |
338 | static int msm_fb_suspend(struct platform_device *pdev, pm_message_t state) | |
339 | { | |
340 | struct msm_fb_data_type *mfd; | |
341 | int ret = 0; | |
342 | ||
343 | MSM_FB_DEBUG("msm_fb_suspend\n"); | |
344 | ||
345 | mfd = (struct msm_fb_data_type *)platform_get_drvdata(pdev); | |
346 | ||
347 | if ((!mfd) || (mfd->key != MFD_KEY)) | |
348 | return 0; | |
349 | ||
ac751efa | 350 | console_lock(); |
9d200153 SM |
351 | fb_set_suspend(mfd->fbi, 1); |
352 | ||
353 | ret = msm_fb_suspend_sub(mfd); | |
354 | if (ret != 0) { | |
355 | printk(KERN_ERR "msm_fb: failed to suspend! %d\n", ret); | |
356 | fb_set_suspend(mfd->fbi, 0); | |
357 | } else { | |
358 | pdev->dev.power.power_state = state; | |
359 | } | |
360 | ||
ac751efa | 361 | console_unlock(); |
9d200153 SM |
362 | return ret; |
363 | } | |
364 | #else | |
365 | #define msm_fb_suspend NULL | |
366 | #endif | |
367 | ||
368 | static int msm_fb_suspend_sub(struct msm_fb_data_type *mfd) | |
369 | { | |
370 | int ret = 0; | |
371 | ||
372 | if ((!mfd) || (mfd->key != MFD_KEY)) | |
373 | return 0; | |
374 | ||
375 | /* | |
376 | * suspend this channel | |
377 | */ | |
378 | mfd->suspend.sw_refreshing_enable = mfd->sw_refreshing_enable; | |
379 | mfd->suspend.op_enable = mfd->op_enable; | |
380 | mfd->suspend.panel_power_on = mfd->panel_power_on; | |
381 | ||
382 | if (mfd->op_enable) { | |
383 | ret = | |
384 | msm_fb_blank_sub(FB_BLANK_POWERDOWN, mfd->fbi, | |
385 | mfd->suspend.op_enable); | |
386 | if (ret) { | |
387 | MSM_FB_INFO | |
388 | ("msm_fb_suspend: can't turn off display!\n"); | |
389 | return ret; | |
390 | } | |
391 | mfd->op_enable = FALSE; | |
392 | } | |
393 | /* | |
394 | * try to power down | |
395 | */ | |
396 | mdp_pipe_ctrl(MDP_MASTER_BLOCK, MDP_BLOCK_POWER_OFF, FALSE); | |
397 | ||
398 | /* | |
399 | * detach display channel irq if there's any | |
400 | * or wait until vsync-resync completes | |
401 | */ | |
402 | if ((mfd->dest == DISPLAY_LCD)) { | |
403 | if (mfd->panel_info.lcd.vsync_enable) { | |
404 | if (mfd->panel_info.lcd.hw_vsync_mode) { | |
405 | if (mfd->channel_irq != 0) | |
406 | disable_irq(mfd->channel_irq); | |
407 | } else { | |
408 | volatile boolean vh_pending; | |
409 | do { | |
410 | vh_pending = mfd->vsync_handler_pending; | |
411 | } while (vh_pending); | |
412 | } | |
413 | } | |
414 | } | |
415 | ||
416 | return 0; | |
417 | } | |
418 | ||
419 | #if defined(CONFIG_PM) && !defined(CONFIG_HAS_EARLYSUSPEND) | |
420 | static int msm_fb_resume(struct platform_device *pdev) | |
421 | { | |
422 | /* This resume function is called when interrupt is enabled. | |
423 | */ | |
424 | int ret = 0; | |
425 | struct msm_fb_data_type *mfd; | |
426 | ||
427 | MSM_FB_DEBUG("msm_fb_resume\n"); | |
428 | ||
429 | mfd = (struct msm_fb_data_type *)platform_get_drvdata(pdev); | |
430 | ||
431 | if ((!mfd) || (mfd->key != MFD_KEY)) | |
432 | return 0; | |
433 | ||
ac751efa | 434 | console_lock(); |
9d200153 SM |
435 | ret = msm_fb_resume_sub(mfd); |
436 | pdev->dev.power.power_state = PMSG_ON; | |
437 | fb_set_suspend(mfd->fbi, 1); | |
ac751efa | 438 | console_unlock(); |
9d200153 SM |
439 | |
440 | return ret; | |
441 | } | |
442 | #else | |
443 | #define msm_fb_resume NULL | |
444 | #endif | |
445 | ||
446 | static int msm_fb_resume_sub(struct msm_fb_data_type *mfd) | |
447 | { | |
448 | int ret = 0; | |
449 | ||
450 | if ((!mfd) || (mfd->key != MFD_KEY)) | |
451 | return 0; | |
452 | ||
453 | /* attach display channel irq if there's any */ | |
454 | if (mfd->channel_irq != 0) | |
455 | enable_irq(mfd->channel_irq); | |
456 | ||
457 | /* resume state var recover */ | |
458 | mfd->sw_refreshing_enable = mfd->suspend.sw_refreshing_enable; | |
459 | mfd->op_enable = mfd->suspend.op_enable; | |
460 | ||
461 | if (mfd->suspend.panel_power_on) { | |
462 | ret = | |
463 | msm_fb_blank_sub(FB_BLANK_UNBLANK, mfd->fbi, | |
464 | mfd->op_enable); | |
465 | if (ret) | |
466 | MSM_FB_INFO("msm_fb_resume: can't turn on display!\n"); | |
467 | } | |
468 | ||
469 | return ret; | |
470 | } | |
471 | ||
472 | static struct platform_driver msm_fb_driver = { | |
473 | .probe = msm_fb_probe, | |
474 | .remove = msm_fb_remove, | |
475 | #ifndef CONFIG_HAS_EARLYSUSPEND | |
476 | .suspend = msm_fb_suspend, | |
477 | .resume = msm_fb_resume, | |
478 | #endif | |
479 | .shutdown = NULL, | |
480 | .driver = { | |
481 | /* Driver name must match the device name added in platform.c. */ | |
482 | .name = "msm_fb", | |
483 | }, | |
484 | }; | |
485 | ||
486 | #ifdef CONFIG_HAS_EARLYSUSPEND | |
487 | static void msmfb_early_suspend(struct early_suspend *h) | |
488 | { | |
489 | struct msm_fb_data_type *mfd = container_of(h, struct msm_fb_data_type, | |
490 | early_suspend); | |
491 | msm_fb_suspend_sub(mfd); | |
492 | } | |
493 | ||
494 | static void msmfb_early_resume(struct early_suspend *h) | |
495 | { | |
496 | struct msm_fb_data_type *mfd = container_of(h, struct msm_fb_data_type, | |
497 | early_suspend); | |
498 | msm_fb_resume_sub(mfd); | |
499 | } | |
500 | #endif | |
501 | ||
502 | void msm_fb_set_backlight(struct msm_fb_data_type *mfd, __u32 bkl_lvl, u32 save) | |
503 | { | |
504 | struct msm_fb_panel_data *pdata; | |
505 | ||
506 | pdata = (struct msm_fb_panel_data *)mfd->pdev->dev.platform_data; | |
507 | ||
508 | if ((pdata) && (pdata->set_backlight)) { | |
509 | down(&mfd->sem); | |
510 | if ((bkl_lvl != mfd->bl_level) || (!save)) { | |
511 | u32 old_lvl; | |
512 | ||
513 | old_lvl = mfd->bl_level; | |
514 | mfd->bl_level = bkl_lvl; | |
515 | pdata->set_backlight(mfd); | |
516 | ||
517 | if (!save) | |
518 | mfd->bl_level = old_lvl; | |
519 | } | |
520 | up(&mfd->sem); | |
521 | } | |
522 | } | |
523 | ||
524 | static int msm_fb_blank_sub(int blank_mode, struct fb_info *info, | |
525 | boolean op_enable) | |
526 | { | |
527 | struct msm_fb_data_type *mfd = (struct msm_fb_data_type *)info->par; | |
528 | struct msm_fb_panel_data *pdata = NULL; | |
529 | int ret = 0; | |
530 | ||
531 | if (!op_enable) | |
532 | return -EPERM; | |
533 | ||
534 | pdata = (struct msm_fb_panel_data *)mfd->pdev->dev.platform_data; | |
535 | if ((!pdata) || (!pdata->on) || (!pdata->off)) { | |
536 | printk(KERN_ERR "msm_fb_blank_sub: no panel operation detected!\n"); | |
537 | return -ENODEV; | |
538 | } | |
539 | ||
540 | switch (blank_mode) { | |
541 | case FB_BLANK_UNBLANK: | |
542 | if (!mfd->panel_power_on) { | |
543 | mdelay(100); | |
544 | ret = pdata->on(mfd->pdev); | |
545 | if (ret == 0) { | |
546 | mfd->panel_power_on = TRUE; | |
547 | ||
548 | msm_fb_set_backlight(mfd, | |
549 | mfd->bl_level, 0); | |
550 | ||
551 | /* ToDo: possible conflict with android which doesn't expect sw refresher */ | |
552 | /* | |
553 | if (!mfd->hw_refresh) | |
554 | { | |
555 | if ((ret = msm_fb_resume_sw_refresher(mfd)) != 0) | |
556 | { | |
557 | MSM_FB_INFO("msm_fb_blank_sub: msm_fb_resume_sw_refresher failed = %d!\n",ret); | |
558 | } | |
559 | } | |
560 | */ | |
561 | } | |
562 | } | |
563 | break; | |
564 | ||
565 | case FB_BLANK_VSYNC_SUSPEND: | |
566 | case FB_BLANK_HSYNC_SUSPEND: | |
567 | case FB_BLANK_NORMAL: | |
568 | case FB_BLANK_POWERDOWN: | |
569 | default: | |
570 | if (mfd->panel_power_on) { | |
571 | int curr_pwr_state; | |
572 | ||
573 | mfd->op_enable = FALSE; | |
574 | curr_pwr_state = mfd->panel_power_on; | |
575 | mfd->panel_power_on = FALSE; | |
576 | ||
577 | mdelay(100); | |
578 | ret = pdata->off(mfd->pdev); | |
579 | if (ret) | |
580 | mfd->panel_power_on = curr_pwr_state; | |
581 | ||
582 | msm_fb_set_backlight(mfd, 0, 0); | |
583 | mfd->op_enable = TRUE; | |
584 | } | |
585 | break; | |
586 | } | |
587 | ||
588 | return ret; | |
589 | } | |
590 | ||
591 | static void msm_fb_fillrect(struct fb_info *info, | |
592 | const struct fb_fillrect *rect) | |
593 | { | |
594 | struct msm_fb_data_type *mfd = (struct msm_fb_data_type *)info->par; | |
595 | ||
596 | cfb_fillrect(info, rect); | |
597 | if (!mfd->hw_refresh && (info->var.yoffset == 0) && | |
598 | !mfd->sw_currently_refreshing) { | |
599 | struct fb_var_screeninfo var; | |
600 | ||
601 | var = info->var; | |
602 | var.reserved[0] = 0x54445055; | |
603 | var.reserved[1] = (rect->dy << 16) | (rect->dx); | |
604 | var.reserved[2] = ((rect->dy + rect->height) << 16) | | |
605 | (rect->dx + rect->width); | |
606 | ||
607 | msm_fb_pan_display(&var, info); | |
608 | } | |
609 | } | |
610 | ||
611 | static void msm_fb_copyarea(struct fb_info *info, | |
612 | const struct fb_copyarea *area) | |
613 | { | |
614 | struct msm_fb_data_type *mfd = (struct msm_fb_data_type *)info->par; | |
615 | ||
616 | cfb_copyarea(info, area); | |
617 | if (!mfd->hw_refresh && (info->var.yoffset == 0) && | |
618 | !mfd->sw_currently_refreshing) { | |
619 | struct fb_var_screeninfo var; | |
620 | ||
621 | var = info->var; | |
622 | var.reserved[0] = 0x54445055; | |
623 | var.reserved[1] = (area->dy << 16) | (area->dx); | |
624 | var.reserved[2] = ((area->dy + area->height) << 16) | | |
625 | (area->dx + area->width); | |
626 | ||
627 | msm_fb_pan_display(&var, info); | |
628 | } | |
629 | } | |
630 | ||
631 | static void msm_fb_imageblit(struct fb_info *info, const struct fb_image *image) | |
632 | { | |
633 | struct msm_fb_data_type *mfd = (struct msm_fb_data_type *)info->par; | |
634 | ||
635 | cfb_imageblit(info, image); | |
636 | if (!mfd->hw_refresh && (info->var.yoffset == 0) && | |
637 | !mfd->sw_currently_refreshing) { | |
638 | struct fb_var_screeninfo var; | |
639 | ||
640 | var = info->var; | |
641 | var.reserved[0] = 0x54445055; | |
642 | var.reserved[1] = (image->dy << 16) | (image->dx); | |
643 | var.reserved[2] = ((image->dy + image->height) << 16) | | |
644 | (image->dx + image->width); | |
645 | ||
646 | msm_fb_pan_display(&var, info); | |
647 | } | |
648 | } | |
649 | ||
650 | static int msm_fb_blank(int blank_mode, struct fb_info *info) | |
651 | { | |
652 | struct msm_fb_data_type *mfd = (struct msm_fb_data_type *)info->par; | |
653 | return msm_fb_blank_sub(blank_mode, info, mfd->op_enable); | |
654 | } | |
655 | ||
656 | static int msm_fb_set_lut(struct fb_cmap *cmap, struct fb_info *info) | |
657 | { | |
658 | struct msm_fb_data_type *mfd = (struct msm_fb_data_type *)info->par; | |
659 | ||
660 | if (!mfd->lut_update) | |
661 | return -ENODEV; | |
662 | ||
663 | mfd->lut_update(info, cmap); | |
664 | return 0; | |
665 | } | |
666 | ||
667 | /* | |
668 | * Custom Framebuffer mmap() function for MSM driver. | |
669 | * Differs from standard mmap() function by allowing for customized | |
670 | * page-protection. | |
671 | */ | |
672 | static int msm_fb_mmap(struct fb_info *info, struct vm_area_struct * vma) | |
673 | { | |
674 | /* Get frame buffer memory range. */ | |
675 | unsigned long start = info->fix.smem_start; | |
676 | u32 len = PAGE_ALIGN((start & ~PAGE_MASK) + info->fix.smem_len); | |
677 | unsigned long off = vma->vm_pgoff << PAGE_SHIFT; | |
678 | struct msm_fb_data_type *mfd = (struct msm_fb_data_type *)info->par; | |
679 | if (off >= len) { | |
680 | /* memory mapped io */ | |
681 | off -= len; | |
682 | if (info->var.accel_flags) { | |
683 | mutex_unlock(&info->lock); | |
684 | return -EINVAL; | |
685 | } | |
686 | start = info->fix.mmio_start; | |
687 | len = PAGE_ALIGN((start & ~PAGE_MASK) + info->fix.mmio_len); | |
688 | } | |
689 | ||
690 | /* Set VM flags. */ | |
691 | start &= PAGE_MASK; | |
692 | if ((vma->vm_end - vma->vm_start + off) > len) | |
693 | return -EINVAL; | |
694 | off += start; | |
695 | vma->vm_pgoff = off >> PAGE_SHIFT; | |
696 | /* This is an IO map - tell maydump to skip this VMA */ | |
697 | vma->vm_flags |= VM_IO | VM_RESERVED; | |
698 | ||
699 | /* Set VM page protection */ | |
700 | if (mfd->mdp_fb_page_protection == MDP_FB_PAGE_PROTECTION_WRITECOMBINE) | |
701 | vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); | |
702 | else if (mfd->mdp_fb_page_protection == | |
703 | MDP_FB_PAGE_PROTECTION_WRITETHROUGHCACHE) | |
704 | vma->vm_page_prot = pgprot_writethroughcache(vma->vm_page_prot); | |
705 | else if (mfd->mdp_fb_page_protection == | |
706 | MDP_FB_PAGE_PROTECTION_WRITEBACKCACHE) | |
707 | vma->vm_page_prot = pgprot_writebackcache(vma->vm_page_prot); | |
708 | else if (mfd->mdp_fb_page_protection == | |
709 | MDP_FB_PAGE_PROTECTION_WRITEBACKWACACHE) | |
710 | vma->vm_page_prot = pgprot_writebackwacache(vma->vm_page_prot); | |
711 | else | |
712 | vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); | |
713 | ||
714 | /* Remap the frame buffer I/O range */ | |
715 | if (io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT, | |
716 | vma->vm_end - vma->vm_start, | |
717 | vma->vm_page_prot)) | |
718 | return -EAGAIN; | |
719 | ||
720 | return 0; | |
721 | } | |
722 | ||
723 | static struct fb_ops msm_fb_ops = { | |
724 | .owner = THIS_MODULE, | |
725 | .fb_open = msm_fb_open, | |
726 | .fb_release = msm_fb_release, | |
727 | .fb_read = NULL, | |
728 | .fb_write = NULL, | |
729 | .fb_cursor = NULL, | |
730 | .fb_check_var = msm_fb_check_var, /* vinfo check */ | |
731 | .fb_set_par = msm_fb_set_par, /* set the video mode according to info->var */ | |
732 | .fb_setcolreg = NULL, /* set color register */ | |
733 | .fb_blank = msm_fb_blank, /* blank display */ | |
734 | .fb_pan_display = msm_fb_pan_display, /* pan display */ | |
735 | .fb_fillrect = msm_fb_fillrect, /* Draws a rectangle */ | |
736 | .fb_copyarea = msm_fb_copyarea, /* Copy data from area to another */ | |
737 | .fb_imageblit = msm_fb_imageblit, /* Draws a image to the display */ | |
738 | .fb_rotate = NULL, | |
739 | .fb_sync = NULL, /* wait for blit idle, optional */ | |
740 | .fb_ioctl = msm_fb_ioctl, /* perform fb specific ioctl (optional) */ | |
741 | .fb_mmap = msm_fb_mmap, | |
742 | }; | |
743 | ||
744 | static int msm_fb_register(struct msm_fb_data_type *mfd) | |
745 | { | |
746 | int ret = -ENODEV; | |
747 | int bpp; | |
748 | struct msm_panel_info *panel_info = &mfd->panel_info; | |
749 | struct fb_info *fbi = mfd->fbi; | |
750 | struct fb_fix_screeninfo *fix; | |
751 | struct fb_var_screeninfo *var; | |
752 | int *id; | |
753 | int fbram_offset; | |
754 | ||
755 | /* | |
756 | * fb info initialization | |
757 | */ | |
758 | fix = &fbi->fix; | |
759 | var = &fbi->var; | |
760 | ||
761 | fix->type_aux = 0; /* if type == FB_TYPE_INTERLEAVED_PLANES */ | |
762 | fix->visual = FB_VISUAL_TRUECOLOR; /* True Color */ | |
763 | fix->ywrapstep = 0; /* No support */ | |
764 | fix->mmio_start = 0; /* No MMIO Address */ | |
765 | fix->mmio_len = 0; /* No MMIO Address */ | |
766 | fix->accel = FB_ACCEL_NONE;/* FB_ACCEL_MSM needes to be added in fb.h */ | |
767 | ||
768 | var->xoffset = 0, /* Offset from virtual to visible */ | |
769 | var->yoffset = 0, /* resolution */ | |
770 | var->grayscale = 0, /* No graylevels */ | |
771 | var->nonstd = 0, /* standard pixel format */ | |
772 | var->activate = FB_ACTIVATE_VBL, /* activate it at vsync */ | |
773 | var->height = -1, /* height of picture in mm */ | |
774 | var->width = -1, /* width of picture in mm */ | |
775 | var->accel_flags = 0, /* acceleration flags */ | |
776 | var->sync = 0, /* see FB_SYNC_* */ | |
777 | var->rotate = 0, /* angle we rotate counter clockwise */ | |
778 | mfd->op_enable = FALSE; | |
779 | ||
780 | switch (mfd->fb_imgType) { | |
781 | case MDP_RGB_565: | |
782 | fix->type = FB_TYPE_PACKED_PIXELS; | |
783 | fix->xpanstep = 1; | |
784 | fix->ypanstep = 1; | |
785 | var->vmode = FB_VMODE_NONINTERLACED; | |
786 | var->blue.offset = 0; | |
787 | var->green.offset = 5; | |
788 | var->red.offset = 11; | |
789 | var->blue.length = 5; | |
790 | var->green.length = 6; | |
791 | var->red.length = 5; | |
792 | var->blue.msb_right = 0; | |
793 | var->green.msb_right = 0; | |
794 | var->red.msb_right = 0; | |
795 | var->transp.offset = 0; | |
796 | var->transp.length = 0; | |
797 | bpp = 2; | |
798 | break; | |
799 | ||
800 | case MDP_RGB_888: | |
801 | fix->type = FB_TYPE_PACKED_PIXELS; | |
802 | fix->xpanstep = 1; | |
803 | fix->ypanstep = 1; | |
804 | var->vmode = FB_VMODE_NONINTERLACED; | |
805 | var->blue.offset = 0; | |
806 | var->green.offset = 8; | |
807 | var->red.offset = 16; | |
808 | var->blue.length = 8; | |
809 | var->green.length = 8; | |
810 | var->red.length = 8; | |
811 | var->blue.msb_right = 0; | |
812 | var->green.msb_right = 0; | |
813 | var->red.msb_right = 0; | |
814 | var->transp.offset = 0; | |
815 | var->transp.length = 0; | |
816 | bpp = 3; | |
817 | break; | |
818 | ||
819 | case MDP_ARGB_8888: | |
820 | fix->type = FB_TYPE_PACKED_PIXELS; | |
821 | fix->xpanstep = 1; | |
822 | fix->ypanstep = 1; | |
823 | var->vmode = FB_VMODE_NONINTERLACED; | |
824 | var->blue.offset = 0; | |
825 | var->green.offset = 8; | |
826 | var->red.offset = 16; | |
827 | var->blue.length = 8; | |
828 | var->green.length = 8; | |
829 | var->red.length = 8; | |
830 | var->blue.msb_right = 0; | |
831 | var->green.msb_right = 0; | |
832 | var->red.msb_right = 0; | |
833 | var->transp.offset = 24; | |
834 | var->transp.length = 8; | |
835 | bpp = 3; | |
836 | break; | |
837 | ||
838 | case MDP_YCRYCB_H2V1: | |
839 | /* ToDo: need to check TV-Out YUV422i framebuffer format */ | |
840 | /* we might need to create new type define */ | |
841 | fix->type = FB_TYPE_INTERLEAVED_PLANES; | |
842 | fix->xpanstep = 2; | |
843 | fix->ypanstep = 1; | |
844 | var->vmode = FB_VMODE_NONINTERLACED; | |
845 | ||
846 | /* how about R/G/B offset? */ | |
847 | var->blue.offset = 0; | |
848 | var->green.offset = 5; | |
849 | var->red.offset = 11; | |
850 | var->blue.length = 5; | |
851 | var->green.length = 6; | |
852 | var->red.length = 5; | |
853 | var->blue.msb_right = 0; | |
854 | var->green.msb_right = 0; | |
855 | var->red.msb_right = 0; | |
856 | var->transp.offset = 0; | |
857 | var->transp.length = 0; | |
858 | bpp = 2; | |
859 | break; | |
860 | ||
861 | default: | |
25985edc | 862 | MSM_FB_ERR("msm_fb_init: fb %d unknown image type!\n", |
9d200153 SM |
863 | mfd->index); |
864 | return ret; | |
865 | } | |
866 | ||
867 | /* The adreno GPU hardware requires that the pitch be aligned to | |
868 | 32 pixels for color buffers, so for the cases where the GPU | |
869 | is writing directly to fb0, the framebuffer pitch | |
870 | also needs to be 32 pixel aligned */ | |
871 | ||
872 | if (mfd->index == 0) | |
873 | fix->line_length = ALIGN(panel_info->xres * bpp, 32); | |
874 | else | |
875 | fix->line_length = panel_info->xres * bpp; | |
876 | ||
877 | fix->smem_len = fix->line_length * panel_info->yres * mfd->fb_page; | |
878 | ||
879 | mfd->var_xres = panel_info->xres; | |
880 | mfd->var_yres = panel_info->yres; | |
881 | ||
882 | var->pixclock = mfd->panel_info.clk_rate; | |
883 | mfd->var_pixclock = var->pixclock; | |
884 | ||
885 | var->xres = panel_info->xres; | |
886 | var->yres = panel_info->yres; | |
887 | var->xres_virtual = panel_info->xres; | |
888 | var->yres_virtual = panel_info->yres * mfd->fb_page; | |
889 | var->bits_per_pixel = bpp * 8, /* FrameBuffer color depth */ | |
890 | /* | |
891 | * id field for fb app | |
892 | */ | |
893 | id = (int *)&mfd->panel; | |
894 | ||
895 | #if defined(CONFIG_FB_MSM_MDP22) | |
896 | snprintf(fix->id, sizeof(fix->id), "msmfb22_%x", (__u32) *id); | |
897 | #elif defined(CONFIG_FB_MSM_MDP30) | |
898 | snprintf(fix->id, sizeof(fix->id), "msmfb30_%x", (__u32) *id); | |
899 | #elif defined(CONFIG_FB_MSM_MDP31) | |
900 | snprintf(fix->id, sizeof(fix->id), "msmfb31_%x", (__u32) *id); | |
901 | #elif defined(CONFIG_FB_MSM_MDP40) | |
902 | snprintf(fix->id, sizeof(fix->id), "msmfb40_%x", (__u32) *id); | |
903 | #else | |
904 | error CONFIG_FB_MSM_MDP undefined ! | |
905 | #endif | |
906 | fbi->fbops = &msm_fb_ops; | |
907 | fbi->flags = FBINFO_FLAG_DEFAULT; | |
908 | fbi->pseudo_palette = msm_fb_pseudo_palette; | |
909 | ||
910 | mfd->ref_cnt = 0; | |
911 | mfd->sw_currently_refreshing = FALSE; | |
912 | mfd->sw_refreshing_enable = TRUE; | |
913 | mfd->panel_power_on = FALSE; | |
914 | ||
915 | mfd->pan_waiting = FALSE; | |
916 | init_completion(&mfd->pan_comp); | |
917 | init_completion(&mfd->refresher_comp); | |
0f0800f1 | 918 | sema_init(&mfd->sem, 1); |
9d200153 SM |
919 | |
920 | fbram_offset = PAGE_ALIGN((int)fbram)-(int)fbram; | |
921 | fbram += fbram_offset; | |
922 | fbram_phys += fbram_offset; | |
923 | fbram_size -= fbram_offset; | |
924 | ||
925 | if (fbram_size < fix->smem_len) { | |
926 | printk(KERN_ERR "error: no more framebuffer memory!\n"); | |
927 | return -ENOMEM; | |
928 | } | |
929 | ||
930 | fbi->screen_base = fbram; | |
931 | fbi->fix.smem_start = (unsigned long)fbram_phys; | |
932 | ||
933 | memset(fbi->screen_base, 0x0, fix->smem_len); | |
934 | ||
935 | mfd->op_enable = TRUE; | |
936 | mfd->panel_power_on = FALSE; | |
937 | ||
938 | /* cursor memory allocation */ | |
939 | if (mfd->cursor_update) { | |
940 | mfd->cursor_buf = dma_alloc_coherent(NULL, | |
941 | MDP_CURSOR_SIZE, | |
942 | (dma_addr_t *) &mfd->cursor_buf_phys, | |
943 | GFP_KERNEL); | |
944 | if (!mfd->cursor_buf) | |
945 | mfd->cursor_update = 0; | |
946 | } | |
947 | ||
948 | if (mfd->lut_update) { | |
949 | ret = fb_alloc_cmap(&fbi->cmap, 256, 0); | |
950 | if (ret) | |
951 | printk(KERN_ERR "%s: fb_alloc_cmap() failed!\n", | |
952 | __func__); | |
953 | } | |
954 | ||
955 | if (register_framebuffer(fbi) < 0) { | |
956 | if (mfd->lut_update) | |
957 | fb_dealloc_cmap(&fbi->cmap); | |
958 | ||
959 | if (mfd->cursor_buf) | |
960 | dma_free_coherent(NULL, | |
961 | MDP_CURSOR_SIZE, | |
962 | mfd->cursor_buf, | |
963 | (dma_addr_t) mfd->cursor_buf_phys); | |
964 | ||
965 | mfd->op_enable = FALSE; | |
966 | return -EPERM; | |
967 | } | |
968 | ||
969 | fbram += fix->smem_len; | |
970 | fbram_phys += fix->smem_len; | |
971 | fbram_size -= fix->smem_len; | |
972 | ||
973 | MSM_FB_INFO | |
974 | ("FrameBuffer[%d] %dx%d size=%d bytes is registered successfully!\n", | |
975 | mfd->index, fbi->var.xres, fbi->var.yres, fbi->fix.smem_len); | |
976 | ||
977 | #ifdef CONFIG_FB_MSM_LOGO | |
978 | if (!load_565rle_image(INIT_IMAGE_FILE)) ; /* Flip buffer */ | |
979 | #endif | |
980 | ret = 0; | |
981 | ||
982 | #ifdef CONFIG_HAS_EARLYSUSPEND | |
983 | mfd->early_suspend.suspend = msmfb_early_suspend; | |
984 | mfd->early_suspend.resume = msmfb_early_resume; | |
985 | mfd->early_suspend.level = EARLY_SUSPEND_LEVEL_DISABLE_FB - 2; | |
986 | register_early_suspend(&mfd->early_suspend); | |
987 | #endif | |
988 | ||
989 | #ifdef MSM_FB_ENABLE_DBGFS | |
990 | { | |
991 | struct dentry *root; | |
992 | struct dentry *sub_dir; | |
993 | char sub_name[2]; | |
994 | ||
995 | root = msm_fb_get_debugfs_root(); | |
996 | if (root != NULL) { | |
997 | sub_name[0] = (char)(mfd->index + 0x30); | |
998 | sub_name[1] = '\0'; | |
999 | sub_dir = debugfs_create_dir(sub_name, root); | |
1000 | } else { | |
1001 | sub_dir = NULL; | |
1002 | } | |
1003 | ||
1004 | mfd->sub_dir = sub_dir; | |
1005 | ||
1006 | if (sub_dir) { | |
1007 | msm_fb_debugfs_file_create(sub_dir, "op_enable", | |
1008 | (u32 *) &mfd->op_enable); | |
1009 | msm_fb_debugfs_file_create(sub_dir, "panel_power_on", | |
1010 | (u32 *) &mfd-> | |
1011 | panel_power_on); | |
1012 | msm_fb_debugfs_file_create(sub_dir, "ref_cnt", | |
1013 | (u32 *) &mfd->ref_cnt); | |
1014 | msm_fb_debugfs_file_create(sub_dir, "fb_imgType", | |
1015 | (u32 *) &mfd->fb_imgType); | |
1016 | msm_fb_debugfs_file_create(sub_dir, | |
1017 | "sw_currently_refreshing", | |
1018 | (u32 *) &mfd-> | |
1019 | sw_currently_refreshing); | |
1020 | msm_fb_debugfs_file_create(sub_dir, | |
1021 | "sw_refreshing_enable", | |
1022 | (u32 *) &mfd-> | |
1023 | sw_refreshing_enable); | |
1024 | ||
1025 | msm_fb_debugfs_file_create(sub_dir, "xres", | |
1026 | (u32 *) &mfd->panel_info. | |
1027 | xres); | |
1028 | msm_fb_debugfs_file_create(sub_dir, "yres", | |
1029 | (u32 *) &mfd->panel_info. | |
1030 | yres); | |
1031 | msm_fb_debugfs_file_create(sub_dir, "bpp", | |
1032 | (u32 *) &mfd->panel_info. | |
1033 | bpp); | |
1034 | msm_fb_debugfs_file_create(sub_dir, "type", | |
1035 | (u32 *) &mfd->panel_info. | |
1036 | type); | |
1037 | msm_fb_debugfs_file_create(sub_dir, "wait_cycle", | |
1038 | (u32 *) &mfd->panel_info. | |
1039 | wait_cycle); | |
1040 | msm_fb_debugfs_file_create(sub_dir, "pdest", | |
1041 | (u32 *) &mfd->panel_info. | |
1042 | pdest); | |
1043 | msm_fb_debugfs_file_create(sub_dir, "backbuff", | |
1044 | (u32 *) &mfd->panel_info. | |
1045 | fb_num); | |
1046 | msm_fb_debugfs_file_create(sub_dir, "clk_rate", | |
1047 | (u32 *) &mfd->panel_info. | |
1048 | clk_rate); | |
1049 | msm_fb_debugfs_file_create(sub_dir, "frame_count", | |
1050 | (u32 *) &mfd->panel_info. | |
1051 | frame_count); | |
1052 | ||
1053 | ||
1054 | switch (mfd->dest) { | |
1055 | case DISPLAY_LCD: | |
1056 | msm_fb_debugfs_file_create(sub_dir, | |
1057 | "vsync_enable", | |
1058 | (u32 *)&mfd->panel_info.lcd.vsync_enable); | |
1059 | msm_fb_debugfs_file_create(sub_dir, | |
1060 | "refx100", | |
1061 | (u32 *) &mfd->panel_info.lcd. refx100); | |
1062 | msm_fb_debugfs_file_create(sub_dir, | |
1063 | "v_back_porch", | |
1064 | (u32 *) &mfd->panel_info.lcd.v_back_porch); | |
1065 | msm_fb_debugfs_file_create(sub_dir, | |
1066 | "v_front_porch", | |
1067 | (u32 *) &mfd->panel_info.lcd.v_front_porch); | |
1068 | msm_fb_debugfs_file_create(sub_dir, | |
1069 | "v_pulse_width", | |
1070 | (u32 *) &mfd->panel_info.lcd.v_pulse_width); | |
1071 | msm_fb_debugfs_file_create(sub_dir, | |
1072 | "hw_vsync_mode", | |
1073 | (u32 *) &mfd->panel_info.lcd.hw_vsync_mode); | |
1074 | msm_fb_debugfs_file_create(sub_dir, | |
1075 | "vsync_notifier_period", (u32 *) | |
1076 | &mfd->panel_info.lcd.vsync_notifier_period); | |
1077 | break; | |
1078 | ||
1079 | case DISPLAY_LCDC: | |
1080 | msm_fb_debugfs_file_create(sub_dir, | |
1081 | "h_back_porch", | |
1082 | (u32 *) &mfd->panel_info.lcdc.h_back_porch); | |
1083 | msm_fb_debugfs_file_create(sub_dir, | |
1084 | "h_front_porch", | |
1085 | (u32 *) &mfd->panel_info.lcdc.h_front_porch); | |
1086 | msm_fb_debugfs_file_create(sub_dir, | |
1087 | "h_pulse_width", | |
1088 | (u32 *) &mfd->panel_info.lcdc.h_pulse_width); | |
1089 | msm_fb_debugfs_file_create(sub_dir, | |
1090 | "v_back_porch", | |
1091 | (u32 *) &mfd->panel_info.lcdc.v_back_porch); | |
1092 | msm_fb_debugfs_file_create(sub_dir, | |
1093 | "v_front_porch", | |
1094 | (u32 *) &mfd->panel_info.lcdc.v_front_porch); | |
1095 | msm_fb_debugfs_file_create(sub_dir, | |
1096 | "v_pulse_width", | |
1097 | (u32 *) &mfd->panel_info.lcdc.v_pulse_width); | |
1098 | msm_fb_debugfs_file_create(sub_dir, | |
1099 | "border_clr", | |
1100 | (u32 *) &mfd->panel_info.lcdc.border_clr); | |
1101 | msm_fb_debugfs_file_create(sub_dir, | |
1102 | "underflow_clr", | |
1103 | (u32 *) &mfd->panel_info.lcdc.underflow_clr); | |
1104 | msm_fb_debugfs_file_create(sub_dir, | |
1105 | "hsync_skew", | |
1106 | (u32 *) &mfd->panel_info.lcdc.hsync_skew); | |
1107 | break; | |
1108 | ||
1109 | default: | |
1110 | break; | |
1111 | } | |
1112 | } | |
1113 | } | |
1114 | #endif /* MSM_FB_ENABLE_DBGFS */ | |
1115 | ||
1116 | return ret; | |
1117 | } | |
1118 | ||
1119 | static int msm_fb_open(struct fb_info *info, int user) | |
1120 | { | |
1121 | struct msm_fb_data_type *mfd = (struct msm_fb_data_type *)info->par; | |
1122 | ||
1123 | if (!mfd->ref_cnt) { | |
1124 | mdp_set_dma_pan_info(info, NULL, TRUE); | |
1125 | ||
1126 | if (msm_fb_blank_sub(FB_BLANK_UNBLANK, info, mfd->op_enable)) { | |
1127 | printk(KERN_ERR "msm_fb_open: can't turn on display!\n"); | |
1128 | return -1; | |
1129 | } | |
1130 | } | |
1131 | ||
1132 | mfd->ref_cnt++; | |
1133 | return 0; | |
1134 | } | |
1135 | ||
1136 | static int msm_fb_release(struct fb_info *info, int user) | |
1137 | { | |
1138 | struct msm_fb_data_type *mfd = (struct msm_fb_data_type *)info->par; | |
1139 | int ret = 0; | |
1140 | ||
1141 | if (!mfd->ref_cnt) { | |
1142 | MSM_FB_INFO("msm_fb_release: try to close unopened fb %d!\n", | |
1143 | mfd->index); | |
1144 | return -EINVAL; | |
1145 | } | |
1146 | ||
1147 | mfd->ref_cnt--; | |
1148 | ||
1149 | if (!mfd->ref_cnt) { | |
1150 | if ((ret = | |
1151 | msm_fb_blank_sub(FB_BLANK_POWERDOWN, info, | |
1152 | mfd->op_enable)) != 0) { | |
1153 | printk(KERN_ERR "msm_fb_release: can't turn off display!\n"); | |
1154 | return ret; | |
1155 | } | |
1156 | } | |
1157 | ||
1158 | return ret; | |
1159 | } | |
1160 | ||
45f4d024 | 1161 | DEFINE_SEMAPHORE(msm_fb_pan_sem); |
9d200153 SM |
1162 | |
1163 | static int msm_fb_pan_display(struct fb_var_screeninfo *var, | |
1164 | struct fb_info *info) | |
1165 | { | |
1166 | struct mdp_dirty_region dirty; | |
1167 | struct mdp_dirty_region *dirtyPtr = NULL; | |
1168 | struct msm_fb_data_type *mfd = (struct msm_fb_data_type *)info->par; | |
1169 | ||
1170 | if ((!mfd->op_enable) || (!mfd->panel_power_on)) | |
1171 | return -EPERM; | |
1172 | ||
1173 | if (var->xoffset > (info->var.xres_virtual - info->var.xres)) | |
1174 | return -EINVAL; | |
1175 | ||
1176 | if (var->yoffset > (info->var.yres_virtual - info->var.yres)) | |
1177 | return -EINVAL; | |
1178 | ||
1179 | if (info->fix.xpanstep) | |
1180 | info->var.xoffset = | |
1181 | (var->xoffset / info->fix.xpanstep) * info->fix.xpanstep; | |
1182 | ||
1183 | if (info->fix.ypanstep) | |
1184 | info->var.yoffset = | |
1185 | (var->yoffset / info->fix.ypanstep) * info->fix.ypanstep; | |
1186 | ||
1187 | /* "UPDT" */ | |
1188 | if (var->reserved[0] == 0x54445055) { | |
1189 | dirty.xoffset = var->reserved[1] & 0xffff; | |
1190 | dirty.yoffset = (var->reserved[1] >> 16) & 0xffff; | |
1191 | ||
1192 | if ((var->reserved[2] & 0xffff) <= dirty.xoffset) | |
1193 | return -EINVAL; | |
1194 | if (((var->reserved[2] >> 16) & 0xffff) <= dirty.yoffset) | |
1195 | return -EINVAL; | |
1196 | ||
1197 | dirty.width = (var->reserved[2] & 0xffff) - dirty.xoffset; | |
1198 | dirty.height = | |
1199 | ((var->reserved[2] >> 16) & 0xffff) - dirty.yoffset; | |
1200 | info->var.yoffset = var->yoffset; | |
1201 | ||
1202 | if (dirty.xoffset < 0) | |
1203 | return -EINVAL; | |
1204 | ||
1205 | if (dirty.yoffset < 0) | |
1206 | return -EINVAL; | |
1207 | ||
1208 | if ((dirty.xoffset + dirty.width) > info->var.xres) | |
1209 | return -EINVAL; | |
1210 | ||
1211 | if ((dirty.yoffset + dirty.height) > info->var.yres) | |
1212 | return -EINVAL; | |
1213 | ||
1214 | if ((dirty.width <= 0) || (dirty.height <= 0)) | |
1215 | return -EINVAL; | |
1216 | ||
1217 | dirtyPtr = &dirty; | |
1218 | } | |
1219 | ||
1220 | /* Flip */ | |
1221 | /* A constant value is used to indicate that we should change the DMA | |
1222 | output buffer instead of just panning */ | |
1223 | ||
1224 | if (var->reserved[0] == 0x466c6970) { | |
1225 | unsigned long length, address; | |
1226 | struct file *p_src_file; | |
1227 | struct mdp_img imgdata; | |
1228 | int bpp; | |
1229 | ||
1230 | if (mfd->allow_set_offset) { | |
1231 | imgdata.memory_id = var->reserved[1]; | |
1232 | imgdata.priv = var->reserved[2]; | |
1233 | ||
1234 | /* If there is no memory ID then we want to reset back | |
1235 | to the original fb visibility */ | |
1236 | if (var->reserved[1]) { | |
1237 | if (var->reserved[4] == MDP_BLIT_SRC_GEM) { | |
1238 | panic("waaaaaaaaaaaaaah"); | |
1239 | if ( /*get_gem_img(&imgdata, | |
1240 | (unsigned long *) &address, | |
1241 | &length)*/ -1 < 0) { | |
1242 | return -1; | |
1243 | } | |
1244 | } else { | |
1245 | /*get_img(&imgdata, info, &address, | |
1246 | &length, &p_src_file);*/ | |
1247 | panic("waaaaaah"); | |
1248 | } | |
1249 | mfd->ibuf.visible_swapped = TRUE; | |
1250 | } else { | |
1251 | /* Flip back to the original address | |
1252 | adjusted for xoffset and yoffset */ | |
1253 | ||
1254 | bpp = info->var.bits_per_pixel / 8; | |
1255 | address = (unsigned long) info->fix.smem_start; | |
1256 | address += info->var.xoffset * bpp + | |
1257 | info->var.yoffset * info->fix.line_length; | |
1258 | ||
1259 | mfd->ibuf.visible_swapped = FALSE; | |
1260 | } | |
1261 | ||
1262 | mdp_set_offset_info(info, address, | |
1263 | (var->activate == FB_ACTIVATE_VBL)); | |
1264 | ||
1265 | mfd->dma_fnc(mfd); | |
1266 | return 0; | |
1267 | } else | |
1268 | return -EINVAL; | |
1269 | } | |
1270 | ||
1271 | down(&msm_fb_pan_sem); | |
1272 | mdp_set_dma_pan_info(info, dirtyPtr, | |
1273 | (var->activate == FB_ACTIVATE_VBL)); | |
1274 | mdp_dma_pan_update(info); | |
1275 | up(&msm_fb_pan_sem); | |
1276 | ||
1277 | ++mfd->panel_info.frame_count; | |
1278 | return 0; | |
1279 | } | |
1280 | ||
1281 | static int msm_fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) | |
1282 | { | |
1283 | struct msm_fb_data_type *mfd = (struct msm_fb_data_type *)info->par; | |
1284 | ||
1285 | if (var->rotate != FB_ROTATE_UR) | |
1286 | return -EINVAL; | |
1287 | if (var->grayscale != info->var.grayscale) | |
1288 | return -EINVAL; | |
1289 | ||
1290 | switch (var->bits_per_pixel) { | |
1291 | case 16: | |
1292 | if ((var->green.offset != 5) || | |
1293 | !((var->blue.offset == 11) | |
1294 | || (var->blue.offset == 0)) || | |
1295 | !((var->red.offset == 11) | |
1296 | || (var->red.offset == 0)) || | |
1297 | (var->blue.length != 5) || | |
1298 | (var->green.length != 6) || | |
1299 | (var->red.length != 5) || | |
1300 | (var->blue.msb_right != 0) || | |
1301 | (var->green.msb_right != 0) || | |
1302 | (var->red.msb_right != 0) || | |
1303 | (var->transp.offset != 0) || | |
1304 | (var->transp.length != 0)) | |
1305 | return -EINVAL; | |
1306 | break; | |
1307 | ||
1308 | case 24: | |
1309 | if ((var->blue.offset != 0) || | |
1310 | (var->green.offset != 8) || | |
1311 | (var->red.offset != 16) || | |
1312 | (var->blue.length != 8) || | |
1313 | (var->green.length != 8) || | |
1314 | (var->red.length != 8) || | |
1315 | (var->blue.msb_right != 0) || | |
1316 | (var->green.msb_right != 0) || | |
1317 | (var->red.msb_right != 0) || | |
1318 | !(((var->transp.offset == 0) && | |
1319 | (var->transp.length == 0)) || | |
1320 | ((var->transp.offset == 24) && | |
1321 | (var->transp.length == 8)))) | |
1322 | return -EINVAL; | |
1323 | break; | |
1324 | ||
1325 | default: | |
1326 | return -EINVAL; | |
1327 | } | |
1328 | ||
1329 | if ((var->xres_virtual <= 0) || (var->yres_virtual <= 0)) | |
1330 | return -EINVAL; | |
1331 | ||
1332 | if (info->fix.smem_len < | |
1333 | (var->xres_virtual*var->yres_virtual*(var->bits_per_pixel/8))) | |
1334 | return -EINVAL; | |
1335 | ||
1336 | if ((var->xres == 0) || (var->yres == 0)) | |
1337 | return -EINVAL; | |
1338 | ||
1339 | if ((var->xres > mfd->panel_info.xres) || | |
1340 | (var->yres > mfd->panel_info.yres)) | |
1341 | return -EINVAL; | |
1342 | ||
1343 | if (var->xoffset > (var->xres_virtual - var->xres)) | |
1344 | return -EINVAL; | |
1345 | ||
1346 | if (var->yoffset > (var->yres_virtual - var->yres)) | |
1347 | return -EINVAL; | |
1348 | ||
1349 | return 0; | |
1350 | } | |
1351 | ||
1352 | static int msm_fb_set_par(struct fb_info *info) | |
1353 | { | |
1354 | struct msm_fb_data_type *mfd = (struct msm_fb_data_type *)info->par; | |
1355 | struct fb_var_screeninfo *var = &info->var; | |
1356 | int old_imgType; | |
1357 | int blank = 0; | |
1358 | ||
1359 | old_imgType = mfd->fb_imgType; | |
1360 | switch (var->bits_per_pixel) { | |
1361 | case 16: | |
1362 | if (var->red.offset == 0) | |
1363 | mfd->fb_imgType = MDP_BGR_565; | |
1364 | else | |
1365 | mfd->fb_imgType = MDP_RGB_565; | |
1366 | break; | |
1367 | ||
1368 | case 24: | |
1369 | if ((var->transp.offset == 0) && (var->transp.length == 0)) | |
1370 | mfd->fb_imgType = MDP_RGB_888; | |
1371 | else if ((var->transp.offset == 24) && | |
1372 | (var->transp.length == 8)) { | |
1373 | mfd->fb_imgType = MDP_ARGB_8888; | |
1374 | info->var.bits_per_pixel = 32; | |
1375 | } | |
1376 | break; | |
1377 | ||
1378 | default: | |
1379 | return -EINVAL; | |
1380 | } | |
1381 | ||
1382 | if ((mfd->var_pixclock != var->pixclock) || | |
1383 | (mfd->hw_refresh && ((mfd->fb_imgType != old_imgType) || | |
1384 | (mfd->var_pixclock != var->pixclock) || | |
1385 | (mfd->var_xres != var->xres) || | |
1386 | (mfd->var_yres != var->yres)))) { | |
1387 | mfd->var_xres = var->xres; | |
1388 | mfd->var_yres = var->yres; | |
1389 | mfd->var_pixclock = var->pixclock; | |
1390 | blank = 1; | |
1391 | } | |
1392 | ||
1393 | if (blank) { | |
1394 | msm_fb_blank_sub(FB_BLANK_POWERDOWN, info, mfd->op_enable); | |
1395 | msm_fb_blank_sub(FB_BLANK_UNBLANK, info, mfd->op_enable); | |
1396 | } | |
1397 | ||
1398 | return 0; | |
1399 | } | |
1400 | ||
1401 | static int msm_fb_stop_sw_refresher(struct msm_fb_data_type *mfd) | |
1402 | { | |
1403 | if (mfd->hw_refresh) | |
1404 | return -EPERM; | |
1405 | ||
1406 | if (mfd->sw_currently_refreshing) { | |
1407 | down(&mfd->sem); | |
1408 | mfd->sw_currently_refreshing = FALSE; | |
1409 | up(&mfd->sem); | |
1410 | ||
1411 | /* wait until the refresher finishes the last job */ | |
1412 | wait_for_completion_killable(&mfd->refresher_comp); | |
1413 | } | |
1414 | ||
1415 | return 0; | |
1416 | } | |
1417 | ||
1418 | int msm_fb_resume_sw_refresher(struct msm_fb_data_type *mfd) | |
1419 | { | |
1420 | boolean do_refresh; | |
1421 | ||
1422 | if (mfd->hw_refresh) | |
1423 | return -EPERM; | |
1424 | ||
1425 | down(&mfd->sem); | |
1426 | if ((!mfd->sw_currently_refreshing) && (mfd->sw_refreshing_enable)) { | |
1427 | do_refresh = TRUE; | |
1428 | mfd->sw_currently_refreshing = TRUE; | |
1429 | } else { | |
1430 | do_refresh = FALSE; | |
1431 | } | |
1432 | up(&mfd->sem); | |
1433 | ||
1434 | if (do_refresh) | |
1435 | mdp_refresh_screen((unsigned long)mfd); | |
1436 | ||
1437 | return 0; | |
1438 | } | |
1439 | ||
1440 | void mdp_ppp_put_img(struct file *p_src_file, struct file *p_dst_file) | |
1441 | { | |
1442 | #ifdef CONFIG_ANDROID_PMEM | |
1443 | if (p_src_file) | |
1444 | put_pmem_file(p_src_file); | |
1445 | if (p_dst_file) | |
1446 | put_pmem_file(p_dst_file); | |
1447 | #endif | |
1448 | } | |
1449 | ||
1450 | int mdp_blit(struct fb_info *info, struct mdp_blit_req *req) | |
1451 | { | |
1452 | int ret; | |
1453 | struct file *p_src_file = 0, *p_dst_file = 0; | |
1454 | if (unlikely(req->src_rect.h == 0 || req->src_rect.w == 0)) { | |
1455 | printk(KERN_ERR "mpd_ppp: src img of zero size!\n"); | |
1456 | return -EINVAL; | |
1457 | } | |
1458 | if (unlikely(req->dst_rect.h == 0 || req->dst_rect.w == 0)) | |
1459 | return 0; | |
1460 | ||
1461 | ret = mdp_ppp_blit(info, req, &p_src_file, &p_dst_file); | |
1462 | mdp_ppp_put_img(p_src_file, p_dst_file); | |
1463 | return ret; | |
1464 | } | |
1465 | ||
1466 | typedef void (*msm_dma_barrier_function_pointer) (void *, size_t); | |
1467 | ||
1468 | static inline void msm_fb_dma_barrier_for_rect(struct fb_info *info, | |
1469 | struct mdp_img *img, struct mdp_rect *rect, | |
1470 | msm_dma_barrier_function_pointer dma_barrier_fp | |
1471 | ) | |
1472 | { | |
1473 | /* | |
1474 | * Compute the start and end addresses of the rectangles. | |
1475 | * NOTE: As currently implemented, the data between | |
1476 | * the end of one row and the start of the next is | |
1477 | * included in the address range rather than | |
1478 | * doing multiple calls for each row. | |
1479 | */ | |
1480 | ||
1481 | char * const pmem_start = info->screen_base; | |
1482 | /* int bytes_per_pixel = mdp_get_bytes_per_pixel(img->format); | |
1483 | unsigned long start = (unsigned long)pmem_start + img->offset + | |
1484 | (img->width * rect->y + rect->x) * bytes_per_pixel; | |
1485 | size_t size = ((rect->h - 1) * img->width + rect->w) * bytes_per_pixel; | |
1486 | (*dma_barrier_fp) ((void *) start, size); | |
1487 | */ | |
1488 | panic("waaaaah"); | |
1489 | } | |
1490 | ||
1491 | static inline void msm_dma_nc_pre(void) | |
1492 | { | |
1493 | dmb(); | |
1494 | } | |
1495 | static inline void msm_dma_wt_pre(void) | |
1496 | { | |
1497 | dmb(); | |
1498 | } | |
1499 | static inline void msm_dma_todevice_wb_pre(void *start, size_t size) | |
1500 | { | |
1501 | #warning this | |
1502 | // dma_cache_pre_ops(start, size, DMA_TO_DEVICE); | |
1503 | } | |
1504 | ||
1505 | static inline void msm_dma_fromdevice_wb_pre(void *start, size_t size) | |
1506 | { | |
1507 | #warning this | |
1508 | // dma_cache_pre_ops(start, size, DMA_FROM_DEVICE); | |
1509 | } | |
1510 | ||
1511 | static inline void msm_dma_nc_post(void) | |
1512 | { | |
1513 | dmb(); | |
1514 | } | |
1515 | ||
1516 | static inline void msm_dma_fromdevice_wt_post(void *start, size_t size) | |
1517 | { | |
1518 | #warning this | |
1519 | // dma_cache_post_ops(start, size, DMA_FROM_DEVICE); | |
1520 | } | |
1521 | ||
1522 | static inline void msm_dma_todevice_wb_post(void *start, size_t size) | |
1523 | { | |
1524 | #warning this | |
1525 | // dma_cache_post_ops(start, size, DMA_TO_DEVICE); | |
1526 | } | |
1527 | ||
1528 | static inline void msm_dma_fromdevice_wb_post(void *start, size_t size) | |
1529 | { | |
1530 | #warning this | |
1531 | // dma_cache_post_ops(start, size, DMA_FROM_DEVICE); | |
1532 | } | |
1533 | ||
1534 | /* | |
1535 | * Do the write barriers required to guarantee data is committed to RAM | |
1536 | * (from CPU cache or internal buffers) before a DMA operation starts. | |
1537 | * NOTE: As currently implemented, the data between | |
1538 | * the end of one row and the start of the next is | |
1539 | * included in the address range rather than | |
1540 | * doing multiple calls for each row. | |
1541 | */ | |
1542 | static void msm_fb_ensure_memory_coherency_before_dma(struct fb_info *info, | |
1543 | struct mdp_blit_req *req_list, | |
1544 | int req_list_count) | |
1545 | { | |
1546 | #ifdef CONFIG_ARCH_QSD8X50 | |
1547 | int i; | |
1548 | ||
1549 | /* | |
1550 | * Normally, do the requested barriers for each address | |
1551 | * range that corresponds to a rectangle. | |
1552 | * | |
1553 | * But if at least one write barrier is requested for data | |
1554 | * going to or from the device but no address range is | |
1555 | * needed for that barrier, then do the barrier, but do it | |
1556 | * only once, no matter how many requests there are. | |
1557 | */ | |
1558 | struct msm_fb_data_type *mfd = (struct msm_fb_data_type *)info->par; | |
1559 | switch (mfd->mdp_fb_page_protection) { | |
1560 | default: | |
1561 | case MDP_FB_PAGE_PROTECTION_NONCACHED: | |
1562 | case MDP_FB_PAGE_PROTECTION_WRITECOMBINE: | |
1563 | /* | |
1564 | * The following barrier is only done at most once, | |
1565 | * since further calls would be redundant. | |
1566 | */ | |
1567 | for (i = 0; i < req_list_count; i++) { | |
1568 | if (!(req_list[i].flags | |
1569 | & MDP_NO_DMA_BARRIER_START)) { | |
1570 | msm_dma_nc_pre(); | |
1571 | break; | |
1572 | } | |
1573 | } | |
1574 | break; | |
1575 | ||
1576 | case MDP_FB_PAGE_PROTECTION_WRITETHROUGHCACHE: | |
1577 | /* | |
1578 | * The following barrier is only done at most once, | |
1579 | * since further calls would be redundant. | |
1580 | */ | |
1581 | for (i = 0; i < req_list_count; i++) { | |
1582 | if (!(req_list[i].flags | |
1583 | & MDP_NO_DMA_BARRIER_START)) { | |
1584 | msm_dma_wt_pre(); | |
1585 | break; | |
1586 | } | |
1587 | } | |
1588 | break; | |
1589 | ||
1590 | case MDP_FB_PAGE_PROTECTION_WRITEBACKCACHE: | |
1591 | case MDP_FB_PAGE_PROTECTION_WRITEBACKWACACHE: | |
1592 | for (i = 0; i < req_list_count; i++) { | |
1593 | if (!(req_list[i].flags & | |
1594 | MDP_NO_DMA_BARRIER_START)) { | |
1595 | ||
1596 | msm_fb_dma_barrier_for_rect(info, | |
1597 | &(req_list[i].src), | |
1598 | &(req_list[i].src_rect), | |
1599 | msm_dma_todevice_wb_pre | |
1600 | ); | |
1601 | ||
1602 | msm_fb_dma_barrier_for_rect(info, | |
1603 | &(req_list[i].dst), | |
1604 | &(req_list[i].dst_rect), | |
1605 | msm_dma_todevice_wb_pre | |
1606 | ); | |
1607 | } | |
1608 | } | |
1609 | break; | |
1610 | } | |
1611 | #else | |
1612 | dmb(); | |
1613 | #endif | |
1614 | } | |
1615 | ||
1616 | ||
1617 | /* | |
1618 | * Do the write barriers required to guarantee data will be re-read from RAM by | |
1619 | * the CPU after a DMA operation ends. | |
1620 | * NOTE: As currently implemented, the data between | |
1621 | * the end of one row and the start of the next is | |
1622 | * included in the address range rather than | |
1623 | * doing multiple calls for each row. | |
1624 | */ | |
1625 | static void msm_fb_ensure_memory_coherency_after_dma(struct fb_info *info, | |
1626 | struct mdp_blit_req *req_list, | |
1627 | int req_list_count) | |
1628 | { | |
1629 | #ifdef CONFIG_ARCH_QSD8X50 | |
1630 | int i; | |
1631 | ||
1632 | struct msm_fb_data_type *mfd = (struct msm_fb_data_type *)info->par; | |
1633 | switch (mfd->mdp_fb_page_protection) { | |
1634 | default: | |
1635 | case MDP_FB_PAGE_PROTECTION_NONCACHED: | |
1636 | case MDP_FB_PAGE_PROTECTION_WRITECOMBINE: | |
1637 | /* | |
1638 | * The following barrier is only done at most once, | |
1639 | * since further calls would be redundant. | |
1640 | */ | |
1641 | for (i = 0; i < req_list_count; i++) { | |
1642 | if (!(req_list[i].flags | |
1643 | & MDP_NO_DMA_BARRIER_END)) { | |
1644 | msm_dma_nc_post(); | |
1645 | break; | |
1646 | } | |
1647 | } | |
1648 | break; | |
1649 | ||
1650 | case MDP_FB_PAGE_PROTECTION_WRITETHROUGHCACHE: | |
1651 | for (i = 0; i < req_list_count; i++) { | |
1652 | if (!(req_list[i].flags & | |
1653 | MDP_NO_DMA_BARRIER_END)) { | |
1654 | ||
1655 | msm_fb_dma_barrier_for_rect(info, | |
1656 | &(req_list[i].dst), | |
1657 | &(req_list[i].dst_rect), | |
1658 | msm_dma_fromdevice_wt_post | |
1659 | ); | |
1660 | } | |
1661 | } | |
1662 | break; | |
1663 | case MDP_FB_PAGE_PROTECTION_WRITEBACKCACHE: | |
1664 | case MDP_FB_PAGE_PROTECTION_WRITEBACKWACACHE: | |
1665 | for (i = 0; i < req_list_count; i++) { | |
1666 | if (!(req_list[i].flags & | |
1667 | MDP_NO_DMA_BARRIER_END)) { | |
1668 | ||
1669 | msm_fb_dma_barrier_for_rect(info, | |
1670 | &(req_list[i].dst), | |
1671 | &(req_list[i].dst_rect), | |
1672 | msm_dma_fromdevice_wb_post | |
1673 | ); | |
1674 | } | |
1675 | } | |
1676 | break; | |
1677 | } | |
1678 | #else | |
1679 | dmb(); | |
1680 | #endif | |
1681 | } | |
1682 | ||
1683 | #ifdef CONFIG_MDP_PPP_ASYNC_OP | |
1684 | void msm_fb_ensure_mem_coherency_after_dma(struct fb_info *info, | |
1685 | struct mdp_blit_req *req_list, int req_list_count) | |
1686 | { | |
1687 | BUG_ON(!info); | |
1688 | ||
1689 | /* | |
1690 | * Ensure that CPU cache and other internal CPU state is | |
1691 | * updated to reflect any change in memory modified by MDP blit | |
1692 | * DMA. | |
1693 | */ | |
1694 | msm_fb_ensure_memory_coherency_after_dma(info, | |
1695 | req_list, req_list_count); | |
1696 | } | |
1697 | ||
1698 | static int msmfb_async_blit(struct fb_info *info, void __user *p) | |
1699 | { | |
1700 | /* | |
1701 | * CAUTION: The names of the struct types intentionally *DON'T* match | |
1702 | * the names of the variables declared -- they appear to be swapped. | |
1703 | * Read the code carefully and you should see that the variable names | |
1704 | * make sense. | |
1705 | */ | |
1706 | const int MAX_LIST_WINDOW = 16; | |
1707 | struct mdp_blit_req req_list[MAX_LIST_WINDOW]; | |
1708 | struct mdp_blit_req_list req_list_header; | |
1709 | ||
1710 | int count, i, req_list_count; | |
1711 | ||
1712 | /* Get the count size for the total BLIT request. */ | |
1713 | if (copy_from_user(&req_list_header, p, sizeof(req_list_header))) | |
1714 | return -EFAULT; | |
1715 | p += sizeof(req_list_header); | |
1716 | count = req_list_header.count; | |
1717 | while (count > 0) { | |
1718 | /* | |
1719 | * Access the requests through a narrow window to decrease copy | |
1720 | * overhead and make larger requests accessible to the | |
1721 | * coherency management code. | |
1722 | * NOTE: The window size is intended to be larger than the | |
1723 | * typical request size, but not require more than 2 | |
1724 | * kbytes of stack storage. | |
1725 | */ | |
1726 | req_list_count = count; | |
1727 | if (req_list_count > MAX_LIST_WINDOW) | |
1728 | req_list_count = MAX_LIST_WINDOW; | |
1729 | if (copy_from_user(&req_list, p, | |
1730 | sizeof(struct mdp_blit_req)*req_list_count)) | |
1731 | return -EFAULT; | |
1732 | ||
1733 | /* | |
1734 | * Ensure that any data CPU may have previously written to | |
1735 | * internal state (but not yet committed to memory) is | |
1736 | * guaranteed to be committed to memory now. | |
1737 | */ | |
1738 | msm_fb_ensure_memory_coherency_before_dma(info, | |
1739 | req_list, req_list_count); | |
1740 | ||
1741 | /* | |
1742 | * Do the blit DMA, if required -- returning early only if | |
1743 | * there is a failure. | |
1744 | */ | |
1745 | for (i = 0; i < req_list_count; i++) { | |
1746 | if (!(req_list[i].flags & MDP_NO_BLIT)) { | |
1747 | int ret = 0; | |
1748 | struct mdp_ppp_djob *job = NULL; | |
1749 | ||
1750 | if (unlikely(req_list[i].src_rect.h == 0 || | |
1751 | req_list[i].src_rect.w == 0)) { | |
1752 | MSM_FB_ERR("mpd_ppp: " | |
1753 | "src img of zero size!\n"); | |
1754 | return -EINVAL; | |
1755 | } | |
1756 | ||
1757 | if (unlikely(req_list[i].dst_rect.h == 0 || | |
1758 | req_list[i].dst_rect.w == 0)) | |
1759 | continue; | |
1760 | ||
1761 | /* create a new display job */ | |
1762 | job = mdp_ppp_new_djob(); | |
1763 | if (unlikely(!job)) | |
1764 | return -ENOMEM; | |
1765 | ||
1766 | job->info = info; | |
1767 | memcpy(&job->req, &req_list[i], | |
1768 | sizeof(struct mdp_blit_req)); | |
1769 | ||
1770 | /* Do the actual blit. */ | |
1771 | ret = mdp_ppp_blit(info, &job->req, | |
1772 | &job->p_src_file, &job->p_dst_file); | |
1773 | ||
1774 | /* | |
1775 | * Note that early returns don't guarantee | |
1776 | * memory coherency. | |
1777 | */ | |
1778 | if (ret || mdp_ppp_get_ret_code()) { | |
1779 | mdp_ppp_clear_curr_djob(); | |
1780 | return ret; | |
1781 | } | |
1782 | } | |
1783 | } | |
1784 | ||
1785 | /* Go to next window of requests. */ | |
1786 | count -= req_list_count; | |
1787 | p += sizeof(struct mdp_blit_req)*req_list_count; | |
1788 | } | |
1789 | return 0; | |
1790 | } | |
1791 | #else | |
1792 | ||
1793 | /* | |
1794 | * NOTE: The userspace issues blit operations in a sequence, the sequence | |
1795 | * start with a operation marked START and ends in an operation marked | |
25985edc | 1796 | * END. It is guaranteed by the userspace that all the blit operations |
9d200153 | 1797 | * between START and END are only within the regions of areas designated |
25985edc | 1798 | * by the START and END operations and that the userspace doesn't modify |
9d200153 SM |
1799 | * those areas. Hence it would be enough to perform barrier/cache operations |
1800 | * only on the START and END operations. | |
1801 | */ | |
1802 | static int msmfb_blit(struct fb_info *info, void __user *p) | |
1803 | { | |
1804 | /* | |
1805 | * CAUTION: The names of the struct types intentionally *DON'T* match | |
1806 | * the names of the variables declared -- they appear to be swapped. | |
1807 | * Read the code carefully and you should see that the variable names | |
1808 | * make sense. | |
1809 | */ | |
1810 | const int MAX_LIST_WINDOW = 16; | |
1811 | struct mdp_blit_req req_list[MAX_LIST_WINDOW]; | |
1812 | struct mdp_blit_req_list req_list_header; | |
1813 | ||
1814 | int count, i, req_list_count; | |
1815 | ||
1816 | /* Get the count size for the total BLIT request. */ | |
1817 | if (copy_from_user(&req_list_header, p, sizeof(req_list_header))) | |
1818 | return -EFAULT; | |
1819 | p += sizeof(req_list_header); | |
1820 | count = req_list_header.count; | |
1821 | while (count > 0) { | |
1822 | /* | |
1823 | * Access the requests through a narrow window to decrease copy | |
1824 | * overhead and make larger requests accessible to the | |
1825 | * coherency management code. | |
1826 | * NOTE: The window size is intended to be larger than the | |
1827 | * typical request size, but not require more than 2 | |
1828 | * kbytes of stack storage. | |
1829 | */ | |
1830 | req_list_count = count; | |
1831 | if (req_list_count > MAX_LIST_WINDOW) | |
1832 | req_list_count = MAX_LIST_WINDOW; | |
1833 | if (copy_from_user(&req_list, p, | |
1834 | sizeof(struct mdp_blit_req)*req_list_count)) | |
1835 | return -EFAULT; | |
1836 | ||
1837 | /* | |
1838 | * Ensure that any data CPU may have previously written to | |
1839 | * internal state (but not yet committed to memory) is | |
1840 | * guaranteed to be committed to memory now. | |
1841 | */ | |
1842 | msm_fb_ensure_memory_coherency_before_dma(info, | |
1843 | req_list, req_list_count); | |
1844 | ||
1845 | /* | |
1846 | * Do the blit DMA, if required -- returning early only if | |
1847 | * there is a failure. | |
1848 | */ | |
1849 | for (i = 0; i < req_list_count; i++) { | |
1850 | if (!(req_list[i].flags & MDP_NO_BLIT)) { | |
1851 | /* Do the actual blit. */ | |
1852 | int ret = mdp_blit(info, &(req_list[i])); | |
1853 | ||
1854 | /* | |
1855 | * Note that early returns don't guarantee | |
1856 | * memory coherency. | |
1857 | */ | |
1858 | if (ret) | |
1859 | return ret; | |
1860 | } | |
1861 | } | |
1862 | ||
1863 | /* | |
1864 | * Ensure that CPU cache and other internal CPU state is | |
1865 | * updated to reflect any change in memory modified by MDP blit | |
1866 | * DMA. | |
1867 | */ | |
1868 | msm_fb_ensure_memory_coherency_after_dma(info, | |
1869 | req_list, | |
1870 | req_list_count); | |
1871 | ||
1872 | /* Go to next window of requests. */ | |
1873 | count -= req_list_count; | |
1874 | p += sizeof(struct mdp_blit_req)*req_list_count; | |
1875 | } | |
1876 | return 0; | |
1877 | } | |
1878 | #endif | |
1879 | ||
1880 | #ifdef CONFIG_FB_MSM_OVERLAY | |
1881 | static int msmfb_overlay_get(struct fb_info *info, void __user *p) | |
1882 | { | |
1883 | struct mdp_overlay req; | |
1884 | int ret; | |
1885 | ||
1886 | if (copy_from_user(&req, p, sizeof(req))) | |
1887 | return -EFAULT; | |
1888 | ||
1889 | ret = mdp4_overlay_get(info, &req); | |
1890 | if (ret) { | |
1891 | printk(KERN_ERR "%s: ioctl failed \n", | |
1892 | __func__); | |
1893 | return ret; | |
1894 | } | |
1895 | if (copy_to_user(p, &req, sizeof(req))) { | |
1896 | printk(KERN_ERR "%s: copy2user failed \n", | |
1897 | __func__); | |
1898 | return -EFAULT; | |
1899 | } | |
1900 | ||
1901 | return 0; | |
1902 | } | |
1903 | ||
1904 | static int msmfb_overlay_set(struct fb_info *info, void __user *p) | |
1905 | { | |
1906 | struct mdp_overlay req; | |
1907 | int ret; | |
1908 | ||
1909 | if (copy_from_user(&req, p, sizeof(req))) | |
1910 | return -EFAULT; | |
1911 | ||
1912 | ret = mdp4_overlay_set(info, &req); | |
1913 | if (ret) { | |
1914 | printk(KERN_ERR "%s:ioctl failed \n", | |
1915 | __func__); | |
1916 | return ret; | |
1917 | } | |
1918 | ||
1919 | if (copy_to_user(p, &req, sizeof(req))) { | |
1920 | printk(KERN_ERR "%s: copy2user failed \n", | |
1921 | __func__); | |
1922 | return -EFAULT; | |
1923 | } | |
1924 | ||
1925 | return 0; | |
1926 | } | |
1927 | ||
1928 | static int msmfb_overlay_unset(struct fb_info *info, unsigned long *argp) | |
1929 | { | |
1930 | int ret, ndx; | |
1931 | ||
1932 | ret = copy_from_user(&ndx, argp, sizeof(ndx)); | |
1933 | if (ret) { | |
1934 | printk(KERN_ERR "%s:msmfb_overlay_unset ioctl failed \n", | |
1935 | __func__); | |
1936 | return ret; | |
1937 | } | |
1938 | ||
1939 | return mdp4_overlay_unset(info, ndx); | |
1940 | } | |
1941 | ||
1942 | static int msmfb_overlay_play(struct fb_info *info, unsigned long *argp) | |
1943 | { | |
1944 | int ret; | |
1945 | struct msmfb_overlay_data req; | |
1946 | struct file *p_src_file = 0; | |
1947 | ||
1948 | ret = copy_from_user(&req, argp, sizeof(req)); | |
1949 | if (ret) { | |
1950 | printk(KERN_ERR "%s:msmfb_overlay_play ioctl failed \n", | |
1951 | __func__); | |
1952 | return ret; | |
1953 | } | |
1954 | ||
1955 | ret = mdp4_overlay_play(info, &req, &p_src_file); | |
1956 | ||
1957 | if (p_src_file) | |
1958 | put_pmem_file(p_src_file); | |
1959 | ||
1960 | return ret; | |
1961 | } | |
1962 | ||
1963 | #endif | |
1964 | ||
45f4d024 | 1965 | DEFINE_SEMAPHORE(msm_fb_ioctl_ppp_sem); |
9d200153 SM |
1966 | DEFINE_MUTEX(msm_fb_ioctl_lut_sem); |
1967 | DEFINE_MUTEX(msm_fb_ioctl_hist_sem); | |
1968 | ||
1969 | /* Set color conversion matrix from user space */ | |
1970 | ||
1971 | #ifndef CONFIG_FB_MSM_MDP40 | |
1972 | static void msmfb_set_color_conv(struct mdp_ccs *p) | |
1973 | { | |
1974 | int i; | |
1975 | ||
1976 | if (p->direction == MDP_CCS_RGB2YUV) { | |
1977 | /* MDP cmd block enable */ | |
1978 | mdp_pipe_ctrl(MDP_CMD_BLOCK, MDP_BLOCK_POWER_ON, FALSE); | |
1979 | ||
1980 | /* RGB->YUV primary forward matrix */ | |
1981 | for (i = 0; i < MDP_CCS_SIZE; i++) | |
1982 | writel(p->ccs[i], MDP_CSC_PFMVn(i)); | |
1983 | ||
1984 | #ifdef CONFIG_FB_MSM_MDP31 | |
1985 | for (i = 0; i < MDP_BV_SIZE; i++) | |
1986 | writel(p->bv[i], MDP_CSC_POST_BV2n(i)); | |
1987 | #endif | |
1988 | ||
1989 | /* MDP cmd block disable */ | |
1990 | mdp_pipe_ctrl(MDP_CMD_BLOCK, MDP_BLOCK_POWER_OFF, FALSE); | |
1991 | } else { | |
1992 | /* MDP cmd block enable */ | |
1993 | mdp_pipe_ctrl(MDP_CMD_BLOCK, MDP_BLOCK_POWER_ON, FALSE); | |
1994 | ||
1995 | /* YUV->RGB primary reverse matrix */ | |
1996 | for (i = 0; i < MDP_CCS_SIZE; i++) | |
1997 | writel(p->ccs[i], MDP_CSC_PRMVn(i)); | |
1998 | for (i = 0; i < MDP_BV_SIZE; i++) | |
1999 | writel(p->bv[i], MDP_CSC_PRE_BV1n(i)); | |
2000 | ||
2001 | /* MDP cmd block disable */ | |
2002 | mdp_pipe_ctrl(MDP_CMD_BLOCK, MDP_BLOCK_POWER_OFF, FALSE); | |
2003 | } | |
2004 | } | |
2005 | #endif | |
2006 | ||
2007 | ||
2008 | static int msm_fb_ioctl(struct fb_info *info, unsigned int cmd, | |
2009 | unsigned long arg) | |
2010 | { | |
2011 | struct msm_fb_data_type *mfd = (struct msm_fb_data_type *)info->par; | |
2012 | void __user *argp = (void __user *)arg; | |
2013 | struct fb_cursor cursor; | |
2014 | struct fb_cmap cmap; | |
2015 | struct mdp_histogram hist; | |
2016 | #ifndef CONFIG_FB_MSM_MDP40 | |
2017 | struct mdp_ccs ccs_matrix; | |
2018 | #endif | |
2019 | struct mdp_page_protection fb_page_protection; | |
2020 | int ret = 0; | |
2021 | ||
2022 | if (!mfd->op_enable) | |
2023 | return -EPERM; | |
2024 | ||
2025 | switch (cmd) { | |
2026 | #ifdef CONFIG_FB_MSM_OVERLAY | |
2027 | case MSMFB_OVERLAY_GET: | |
2028 | down(&msm_fb_ioctl_ppp_sem); | |
2029 | ret = msmfb_overlay_get(info, argp); | |
2030 | up(&msm_fb_ioctl_ppp_sem); | |
2031 | break; | |
2032 | case MSMFB_OVERLAY_SET: | |
2033 | down(&msm_fb_ioctl_ppp_sem); | |
2034 | ret = msmfb_overlay_set(info, argp); | |
2035 | up(&msm_fb_ioctl_ppp_sem); | |
2036 | break; | |
2037 | case MSMFB_OVERLAY_UNSET: | |
2038 | down(&msm_fb_ioctl_ppp_sem); | |
2039 | ret = msmfb_overlay_unset(info, argp); | |
2040 | up(&msm_fb_ioctl_ppp_sem); | |
2041 | break; | |
2042 | case MSMFB_OVERLAY_PLAY: | |
2043 | down(&msm_fb_ioctl_ppp_sem); | |
2044 | ret = msmfb_overlay_play(info, argp); | |
2045 | up(&msm_fb_ioctl_ppp_sem); | |
2046 | break; | |
2047 | #endif | |
2048 | case MSMFB_BLIT: | |
2049 | down(&msm_fb_ioctl_ppp_sem); | |
2050 | #ifdef CONFIG_MDP_PPP_ASYNC_OP | |
2051 | ret = msmfb_async_blit(info, argp); | |
2052 | mdp_ppp_wait(); /* Wait for all blits to be finished. */ | |
2053 | #else | |
2054 | ret = msmfb_blit(info, argp); | |
2055 | #endif | |
2056 | up(&msm_fb_ioctl_ppp_sem); | |
2057 | ||
2058 | break; | |
2059 | ||
2060 | /* Ioctl for setting ccs matrix from user space */ | |
2061 | case MSMFB_SET_CCS_MATRIX: | |
2062 | #ifndef CONFIG_FB_MSM_MDP40 | |
2063 | ret = copy_from_user(&ccs_matrix, argp, sizeof(ccs_matrix)); | |
2064 | if (ret) { | |
2065 | printk(KERN_ERR | |
2066 | "%s:MSMFB_SET_CCS_MATRIX ioctl failed \n", | |
2067 | __func__); | |
2068 | return ret; | |
2069 | } | |
2070 | ||
2071 | down(&msm_fb_ioctl_ppp_sem); | |
2072 | if (ccs_matrix.direction == MDP_CCS_RGB2YUV) | |
2073 | mdp_ccs_rgb2yuv = ccs_matrix; | |
2074 | else | |
2075 | mdp_ccs_yuv2rgb = ccs_matrix; | |
2076 | ||
2077 | msmfb_set_color_conv(&ccs_matrix) ; | |
2078 | up(&msm_fb_ioctl_ppp_sem); | |
2079 | #else | |
2080 | ret = -EINVAL; | |
2081 | #endif | |
2082 | ||
2083 | break; | |
2084 | ||
2085 | /* Ioctl for getting ccs matrix to user space */ | |
2086 | case MSMFB_GET_CCS_MATRIX: | |
2087 | #ifndef CONFIG_FB_MSM_MDP40 | |
2088 | ret = copy_from_user(&ccs_matrix, argp, sizeof(ccs_matrix)) ; | |
2089 | if (ret) { | |
2090 | printk(KERN_ERR | |
2091 | "%s:MSMFB_GET_CCS_MATRIX ioctl failed \n", | |
2092 | __func__); | |
2093 | return ret; | |
2094 | } | |
2095 | ||
2096 | down(&msm_fb_ioctl_ppp_sem); | |
2097 | if (ccs_matrix.direction == MDP_CCS_RGB2YUV) | |
2098 | ccs_matrix = mdp_ccs_rgb2yuv; | |
2099 | else | |
2100 | ccs_matrix = mdp_ccs_yuv2rgb; | |
2101 | ||
2102 | ret = copy_to_user(argp, &ccs_matrix, sizeof(ccs_matrix)); | |
2103 | ||
2104 | if (ret) { | |
2105 | printk(KERN_ERR | |
2106 | "%s:MSMFB_GET_CCS_MATRIX ioctl failed \n", | |
2107 | __func__); | |
2108 | return ret ; | |
2109 | } | |
2110 | up(&msm_fb_ioctl_ppp_sem); | |
2111 | #else | |
2112 | ret = -EINVAL; | |
2113 | #endif | |
2114 | ||
2115 | break; | |
2116 | ||
2117 | #ifdef CONFIG_MDP_PPP_ASYNC_OP | |
2118 | case MSMFB_ASYNC_BLIT: | |
2119 | down(&msm_fb_ioctl_ppp_sem); | |
2120 | ret = msmfb_async_blit(info, argp); | |
2121 | up(&msm_fb_ioctl_ppp_sem); | |
2122 | break; | |
2123 | ||
2124 | case MSMFB_BLIT_FLUSH: | |
2125 | down(&msm_fb_ioctl_ppp_sem); | |
2126 | mdp_ppp_wait(); | |
2127 | up(&msm_fb_ioctl_ppp_sem); | |
2128 | break; | |
2129 | #endif | |
2130 | ||
2131 | case MSMFB_GRP_DISP: | |
2132 | #ifdef CONFIG_FB_MSM_MDP22 | |
2133 | { | |
2134 | unsigned long grp_id; | |
2135 | ||
2136 | ret = copy_from_user(&grp_id, argp, sizeof(grp_id)); | |
2137 | if (ret) | |
2138 | return ret; | |
2139 | ||
2140 | mdp_pipe_ctrl(MDP_CMD_BLOCK, MDP_BLOCK_POWER_ON, FALSE); | |
2141 | writel(grp_id, MDP_FULL_BYPASS_WORD43); | |
2142 | mdp_pipe_ctrl(MDP_CMD_BLOCK, MDP_BLOCK_POWER_OFF, | |
2143 | FALSE); | |
2144 | break; | |
2145 | } | |
2146 | #else | |
2147 | return -EFAULT; | |
2148 | #endif | |
2149 | case MSMFB_SUSPEND_SW_REFRESHER: | |
2150 | if (!mfd->panel_power_on) | |
2151 | return -EPERM; | |
2152 | ||
2153 | mfd->sw_refreshing_enable = FALSE; | |
2154 | ret = msm_fb_stop_sw_refresher(mfd); | |
2155 | break; | |
2156 | ||
2157 | case MSMFB_RESUME_SW_REFRESHER: | |
2158 | if (!mfd->panel_power_on) | |
2159 | return -EPERM; | |
2160 | ||
2161 | mfd->sw_refreshing_enable = TRUE; | |
2162 | ret = msm_fb_resume_sw_refresher(mfd); | |
2163 | break; | |
2164 | ||
2165 | case MSMFB_CURSOR: | |
2166 | ret = copy_from_user(&cursor, argp, sizeof(cursor)); | |
2167 | if (ret) | |
2168 | return ret; | |
2169 | ||
2170 | ret = msm_fb_cursor(info, &cursor); | |
2171 | break; | |
2172 | ||
2173 | case MSMFB_SET_LUT: | |
2174 | ret = copy_from_user(&cmap, argp, sizeof(cmap)); | |
2175 | if (ret) | |
2176 | return ret; | |
2177 | ||
2178 | mutex_lock(&msm_fb_ioctl_lut_sem); | |
2179 | ret = msm_fb_set_lut(&cmap, info); | |
2180 | mutex_unlock(&msm_fb_ioctl_lut_sem); | |
2181 | break; | |
2182 | ||
2183 | case MSMFB_HISTOGRAM: | |
2184 | if (!mfd->do_histogram) | |
2185 | return -ENODEV; | |
2186 | ||
2187 | ret = copy_from_user(&hist, argp, sizeof(hist)); | |
2188 | if (ret) | |
2189 | return ret; | |
2190 | ||
2191 | mutex_lock(&msm_fb_ioctl_hist_sem); | |
2192 | ret = mfd->do_histogram(info, &hist); | |
2193 | mutex_unlock(&msm_fb_ioctl_hist_sem); | |
2194 | break; | |
2195 | ||
2196 | case MSMFB_GET_PAGE_PROTECTION: | |
2197 | fb_page_protection.page_protection | |
2198 | = mfd->mdp_fb_page_protection; | |
2199 | ret = copy_to_user(argp, &fb_page_protection, | |
2200 | sizeof(fb_page_protection)); | |
2201 | if (ret) | |
2202 | return ret; | |
2203 | break; | |
2204 | ||
2205 | case MSMFB_SET_PAGE_PROTECTION: | |
2206 | #ifdef CONFIG_ARCH_QSD8X50 | |
2207 | ret = copy_from_user(&fb_page_protection, argp, | |
2208 | sizeof(fb_page_protection)); | |
2209 | if (ret) | |
2210 | return ret; | |
2211 | ||
2212 | /* Validate the proposed page protection settings. */ | |
2213 | switch (fb_page_protection.page_protection) { | |
2214 | case MDP_FB_PAGE_PROTECTION_NONCACHED: | |
2215 | case MDP_FB_PAGE_PROTECTION_WRITECOMBINE: | |
2216 | case MDP_FB_PAGE_PROTECTION_WRITETHROUGHCACHE: | |
2217 | /* Write-back cache (read allocate) */ | |
2218 | case MDP_FB_PAGE_PROTECTION_WRITEBACKCACHE: | |
2219 | /* Write-back cache (write allocate) */ | |
2220 | case MDP_FB_PAGE_PROTECTION_WRITEBACKWACACHE: | |
2221 | mfd->mdp_fb_page_protection = | |
2222 | fb_page_protection.page_protection; | |
2223 | break; | |
2224 | default: | |
2225 | ret = -EINVAL; | |
2226 | break; | |
2227 | } | |
2228 | #else | |
2229 | /* | |
2230 | * Don't allow caching until 7k DMA cache operations are | |
2231 | * available. | |
2232 | */ | |
2233 | ret = -EINVAL; | |
2234 | #endif | |
2235 | break; | |
2236 | ||
2237 | default: | |
2238 | MSM_FB_INFO("MDP: unknown ioctl (cmd=%d) received!\n", cmd); | |
2239 | ret = -EINVAL; | |
2240 | break; | |
2241 | } | |
2242 | ||
2243 | return ret; | |
2244 | } | |
2245 | ||
2246 | static int msm_fb_register_driver(void) | |
2247 | { | |
2248 | return platform_driver_register(&msm_fb_driver); | |
2249 | } | |
2250 | ||
2251 | void msm_fb_add_device(struct platform_device *pdev) | |
2252 | { | |
2253 | struct msm_fb_panel_data *pdata; | |
2254 | struct platform_device *this_dev = NULL; | |
2255 | struct fb_info *fbi; | |
2256 | struct msm_fb_data_type *mfd = NULL; | |
2257 | u32 type, id, fb_num; | |
2258 | ||
2259 | if (!pdev) | |
2260 | return; | |
2261 | id = pdev->id; | |
2262 | ||
2263 | pdata = pdev->dev.platform_data; | |
2264 | if (!pdata) | |
2265 | return; | |
2266 | type = pdata->panel_info.type; | |
2267 | fb_num = pdata->panel_info.fb_num; | |
2268 | ||
2269 | if (fb_num <= 0) | |
2270 | return; | |
2271 | ||
2272 | if (fbi_list_index >= MAX_FBI_LIST) { | |
2273 | printk(KERN_ERR "msm_fb: no more framebuffer info list!\n"); | |
2274 | return; | |
2275 | } | |
2276 | /* | |
2277 | * alloc panel device data | |
2278 | */ | |
2279 | this_dev = msm_fb_device_alloc(pdata, type, id); | |
2280 | ||
2281 | if (!this_dev) { | |
2282 | printk(KERN_ERR | |
2283 | "%s: msm_fb_device_alloc failed!\n", __func__); | |
2284 | return; | |
2285 | } | |
2286 | ||
2287 | /* | |
2288 | * alloc framebuffer info + par data | |
2289 | */ | |
2290 | fbi = framebuffer_alloc(sizeof(struct msm_fb_data_type), NULL); | |
2291 | if (fbi == NULL) { | |
2292 | platform_device_put(this_dev); | |
2293 | printk(KERN_ERR "msm_fb: can't alloca framebuffer info data!\n"); | |
2294 | return; | |
2295 | } | |
2296 | ||
2297 | mfd = (struct msm_fb_data_type *)fbi->par; | |
2298 | mfd->key = MFD_KEY; | |
2299 | mfd->fbi = fbi; | |
2300 | mfd->panel.type = type; | |
2301 | mfd->panel.id = id; | |
2302 | mfd->fb_page = fb_num; | |
2303 | mfd->index = fbi_list_index; | |
2304 | mfd->mdp_fb_page_protection = MDP_FB_PAGE_PROTECTION_WRITECOMBINE; | |
2305 | ||
2306 | /* link to the latest pdev */ | |
2307 | mfd->pdev = this_dev; | |
2308 | ||
2309 | mfd_list[mfd_list_index++] = mfd; | |
2310 | fbi_list[fbi_list_index++] = fbi; | |
2311 | ||
2312 | /* | |
2313 | * set driver data | |
2314 | */ | |
2315 | platform_set_drvdata(this_dev, mfd); | |
2316 | ||
2317 | if (platform_device_add(this_dev)) { | |
2318 | printk(KERN_ERR "msm_fb: platform_device_add failed!\n"); | |
2319 | platform_device_put(this_dev); | |
2320 | framebuffer_release(fbi); | |
2321 | fbi_list_index--; | |
2322 | return; | |
2323 | } | |
2324 | } | |
2325 | EXPORT_SYMBOL(msm_fb_add_device); | |
2326 | ||
2327 | int __init msm_fb_init(void) | |
2328 | { | |
2329 | int rc = -ENODEV; | |
2330 | ||
2331 | if (msm_fb_register_driver()) | |
2332 | return rc; | |
2333 | ||
2334 | #ifdef MSM_FB_ENABLE_DBGFS | |
2335 | { | |
2336 | struct dentry *root; | |
2337 | ||
2338 | if ((root = msm_fb_get_debugfs_root()) != NULL) { | |
2339 | msm_fb_debugfs_file_create(root, | |
2340 | "msm_fb_msg_printing_level", | |
2341 | (u32 *) &msm_fb_msg_level); | |
2342 | msm_fb_debugfs_file_create(root, | |
2343 | "mddi_msg_printing_level", | |
2344 | (u32 *) &mddi_msg_level); | |
2345 | msm_fb_debugfs_file_create(root, "msm_fb_debug_enabled", | |
2346 | (u32 *) &msm_fb_debug_enabled); | |
2347 | } | |
2348 | } | |
2349 | #endif | |
2350 | ||
2351 | return 0; | |
2352 | } | |
2353 | ||
2354 | module_init(msm_fb_init); |