1 /* include/linux/msm_mdp.h
2  *
3  * Copyright (C) 2007 Google Incorporated
4  * Copyright (c) 2012-2013 The Linux Foundation. All rights reserved.
5  *
6  * This software is licensed under the terms of the GNU General Public
7  * License version 2, as published by the Free Software Foundation, and
8  * may be copied, distributed, and modified under those terms.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  */
15 #ifndef _MSM_MDP_H_
16 #define _MSM_MDP_H_
17 
18 #include <linux/types.h>
19 #include <linux/fb.h>
20 
21 #define MSMFB_IOCTL_MAGIC 'm'
22 #define MSMFB_GRP_DISP          _IOW(MSMFB_IOCTL_MAGIC, 1, unsigned int)
23 #define MSMFB_BLIT              _IOW(MSMFB_IOCTL_MAGIC, 2, unsigned int)
24 #define MSMFB_SUSPEND_SW_REFRESHER _IOW(MSMFB_IOCTL_MAGIC, 128, unsigned int)
25 #define MSMFB_RESUME_SW_REFRESHER _IOW(MSMFB_IOCTL_MAGIC, 129, unsigned int)
26 #define MSMFB_CURSOR _IOW(MSMFB_IOCTL_MAGIC, 130, struct fb_cursor)
27 #define MSMFB_SET_LUT _IOW(MSMFB_IOCTL_MAGIC, 131, struct fb_cmap)
28 #define MSMFB_HISTOGRAM _IOWR(MSMFB_IOCTL_MAGIC, 132, struct mdp_histogram_data)
29 /* new ioctls's for set/get ccs matrix */
30 #define MSMFB_GET_CCS_MATRIX  _IOWR(MSMFB_IOCTL_MAGIC, 133, struct mdp_ccs)
31 #define MSMFB_SET_CCS_MATRIX  _IOW(MSMFB_IOCTL_MAGIC, 134, struct mdp_ccs)
32 #define MSMFB_OVERLAY_SET       _IOWR(MSMFB_IOCTL_MAGIC, 135, \
33 						struct mdp_overlay)
34 #define MSMFB_OVERLAY_UNSET     _IOW(MSMFB_IOCTL_MAGIC, 136, unsigned int)
35 
36 #define MSMFB_OVERLAY_PLAY      _IOW(MSMFB_IOCTL_MAGIC, 137, \
37 						struct msmfb_overlay_data)
38 #define MSMFB_OVERLAY_QUEUE	MSMFB_OVERLAY_PLAY
39 
40 #define MSMFB_GET_PAGE_PROTECTION _IOR(MSMFB_IOCTL_MAGIC, 138, \
41 					struct mdp_page_protection)
42 #define MSMFB_SET_PAGE_PROTECTION _IOW(MSMFB_IOCTL_MAGIC, 139, \
43 					struct mdp_page_protection)
44 #define MSMFB_OVERLAY_GET      _IOR(MSMFB_IOCTL_MAGIC, 140, \
45 						struct mdp_overlay)
46 #define MSMFB_OVERLAY_PLAY_ENABLE     _IOW(MSMFB_IOCTL_MAGIC, 141, unsigned int)
47 #define MSMFB_OVERLAY_BLT       _IOWR(MSMFB_IOCTL_MAGIC, 142, \
48 						struct msmfb_overlay_blt)
49 #define MSMFB_OVERLAY_BLT_OFFSET     _IOW(MSMFB_IOCTL_MAGIC, 143, unsigned int)
50 #define MSMFB_HISTOGRAM_START	_IOR(MSMFB_IOCTL_MAGIC, 144, \
51 						struct mdp_histogram_start_req)
52 #define MSMFB_HISTOGRAM_STOP	_IOR(MSMFB_IOCTL_MAGIC, 145, unsigned int)
53 #define MSMFB_NOTIFY_UPDATE	_IOW(MSMFB_IOCTL_MAGIC, 146, unsigned int)
54 
55 #define MSMFB_OVERLAY_3D       _IOWR(MSMFB_IOCTL_MAGIC, 147, \
56 						struct msmfb_overlay_3d)
57 
58 #define MSMFB_MIXER_INFO       _IOWR(MSMFB_IOCTL_MAGIC, 148, \
59 						struct msmfb_mixer_info_req)
60 #define MSMFB_OVERLAY_PLAY_WAIT _IOWR(MSMFB_IOCTL_MAGIC, 149, \
61 						struct msmfb_overlay_data)
62 #define MSMFB_WRITEBACK_INIT _IO(MSMFB_IOCTL_MAGIC, 150)
63 #define MSMFB_WRITEBACK_START _IO(MSMFB_IOCTL_MAGIC, 151)
64 #define MSMFB_WRITEBACK_STOP _IO(MSMFB_IOCTL_MAGIC, 152)
65 #define MSMFB_WRITEBACK_QUEUE_BUFFER _IOW(MSMFB_IOCTL_MAGIC, 153, \
66 						struct msmfb_data)
67 #define MSMFB_WRITEBACK_DEQUEUE_BUFFER _IOW(MSMFB_IOCTL_MAGIC, 154, \
68 						struct msmfb_data)
69 #define MSMFB_WRITEBACK_TERMINATE _IO(MSMFB_IOCTL_MAGIC, 155)
70 #define MSMFB_MDP_PP _IOWR(MSMFB_IOCTL_MAGIC, 156, struct msmfb_mdp_pp)
71 #define MSMFB_OVERLAY_VSYNC_CTRL _IOW(MSMFB_IOCTL_MAGIC, 160, unsigned int)
72 #define MSMFB_VSYNC_CTRL  _IOW(MSMFB_IOCTL_MAGIC, 161, unsigned int)
73 #define MSMFB_BUFFER_SYNC  _IOW(MSMFB_IOCTL_MAGIC, 162, struct mdp_buf_sync)
74 #define MSMFB_DISPLAY_COMMIT      _IOW(MSMFB_IOCTL_MAGIC, 164, \
75 						struct mdp_display_commit)
76 #define MSMFB_METADATA_GET  _IOW(MSMFB_IOCTL_MAGIC, 166, struct msmfb_metadata)
77 
78 #define FB_TYPE_3D_PANEL 0x10101010
79 #define MDP_IMGTYPE2_START 0x10000
80 #define MSMFB_DRIVER_VERSION	0xF9E8D701
81 
82 enum {
83 	NOTIFY_UPDATE_START,
84 	NOTIFY_UPDATE_STOP,
85 };
86 
87 enum {
88 	MDP_RGB_565,      /* RGB 565 planer */
89 	MDP_XRGB_8888,    /* RGB 888 padded */
90 	MDP_Y_CBCR_H2V2,  /* Y and CbCr, pseudo planer w/ Cb is in MSB */
91 	MDP_Y_CBCR_H2V2_ADRENO,
92 	MDP_ARGB_8888,    /* ARGB 888 */
93 	MDP_RGB_888,      /* RGB 888 planer */
94 	MDP_Y_CRCB_H2V2,  /* Y and CrCb, pseudo planer w/ Cr is in MSB */
95 	MDP_YCRYCB_H2V1,  /* YCrYCb interleave */
96 	MDP_Y_CRCB_H2V1,  /* Y and CrCb, pseduo planer w/ Cr is in MSB */
97 	MDP_Y_CBCR_H2V1,   /* Y and CrCb, pseduo planer w/ Cr is in MSB */
98 	MDP_Y_CRCB_H1V2,
99 	MDP_Y_CBCR_H1V2,
100 	MDP_RGBA_8888,    /* ARGB 888 */
101 	MDP_BGRA_8888,	  /* ABGR 888 */
102 	MDP_RGBX_8888,	  /* RGBX 888 */
103 	MDP_Y_CRCB_H2V2_TILE,  /* Y and CrCb, pseudo planer tile */
104 	MDP_Y_CBCR_H2V2_TILE,  /* Y and CbCr, pseudo planer tile */
105 	MDP_Y_CR_CB_H2V2,  /* Y, Cr and Cb, planar */
106 	MDP_Y_CR_CB_GH2V2,  /* Y, Cr and Cb, planar aligned to Android YV12 */
107 	MDP_Y_CB_CR_H2V2,  /* Y, Cb and Cr, planar */
108 	MDP_Y_CRCB_H1V1,  /* Y and CrCb, pseduo planer w/ Cr is in MSB */
109 	MDP_Y_CBCR_H1V1,  /* Y and CbCr, pseduo planer w/ Cb is in MSB */
110 	MDP_YCRCB_H1V1,   /* YCrCb interleave */
111 	MDP_YCBCR_H1V1,   /* YCbCr interleave */
112 	MDP_BGR_565,      /* BGR 565 planer */
113 	MDP_IMGTYPE_LIMIT,
114 	MDP_RGB_BORDERFILL,	/* border fill pipe */
115 	MDP_FB_FORMAT = MDP_IMGTYPE2_START,    /* framebuffer format */
116 	MDP_IMGTYPE_LIMIT2 /* Non valid image type after this enum */
117 };
118 
119 enum {
120 	PMEM_IMG,
121 	FB_IMG,
122 };
123 
124 enum {
125 	HSIC_HUE = 0,
126 	HSIC_SAT,
127 	HSIC_INT,
128 	HSIC_CON,
129 	NUM_HSIC_PARAM,
130 };
131 
132 #define MDSS_MDP_ROT_ONLY		0x80
133 #define MDSS_MDP_RIGHT_MIXER		0x100
134 
135 /* mdp_blit_req flag values */
136 #define MDP_ROT_NOP 0
137 #define MDP_FLIP_LR 0x1
138 #define MDP_FLIP_UD 0x2
139 #define MDP_ROT_90 0x4
140 #define MDP_ROT_180 (MDP_FLIP_UD|MDP_FLIP_LR)
141 #define MDP_ROT_270 (MDP_ROT_90|MDP_FLIP_UD|MDP_FLIP_LR)
142 #define MDP_DITHER 0x8
143 #define MDP_BLUR 0x10
144 #define MDP_BLEND_FG_PREMULT 0x20000
145 #define MDP_DEINTERLACE 0x80000000
146 #define MDP_SHARPENING  0x40000000
147 #define MDP_NO_DMA_BARRIER_START	0x20000000
148 #define MDP_NO_DMA_BARRIER_END		0x10000000
149 #define MDP_NO_BLIT			0x08000000
150 #define MDP_BLIT_WITH_DMA_BARRIERS	0x000
151 #define MDP_BLIT_WITH_NO_DMA_BARRIERS    \
152 	(MDP_NO_DMA_BARRIER_START | MDP_NO_DMA_BARRIER_END)
153 #define MDP_BLIT_SRC_GEM                0x04000000
154 #define MDP_BLIT_DST_GEM                0x02000000
155 #define MDP_BLIT_NON_CACHED		0x01000000
156 #define MDP_OV_PIPE_SHARE		0x00800000
157 #define MDP_DEINTERLACE_ODD		0x00400000
158 #define MDP_OV_PLAY_NOWAIT		0x00200000
159 #define MDP_SOURCE_ROTATED_90		0x00100000
160 #define MDP_OVERLAY_PP_CFG_EN		0x00080000
161 #define MDP_BACKEND_COMPOSITION		0x00040000
162 #define MDP_BORDERFILL_SUPPORTED	0x00010000
163 #define MDP_SECURE_OVERLAY_SESSION      0x00008000
164 #define MDP_MEMORY_ID_TYPE_FB		0x00001000
165 
166 #define MDP_TRANSP_NOP 0xffffffff
167 #define MDP_ALPHA_NOP 0xff
168 
169 #define MDP_FB_PAGE_PROTECTION_NONCACHED         (0)
170 #define MDP_FB_PAGE_PROTECTION_WRITECOMBINE      (1)
171 #define MDP_FB_PAGE_PROTECTION_WRITETHROUGHCACHE (2)
172 #define MDP_FB_PAGE_PROTECTION_WRITEBACKCACHE    (3)
173 #define MDP_FB_PAGE_PROTECTION_WRITEBACKWACACHE  (4)
174 /* Sentinel: Don't use! */
175 #define MDP_FB_PAGE_PROTECTION_INVALID           (5)
176 /* Count of the number of MDP_FB_PAGE_PROTECTION_... values. */
177 #define MDP_NUM_FB_PAGE_PROTECTION_VALUES        (5)
178 
179 struct mdp_rect {
180 	uint32_t x;
181 	uint32_t y;
182 	uint32_t w;
183 	uint32_t h;
184 };
185 
186 struct mdp_img {
187 	uint32_t width;
188 	uint32_t height;
189 	uint32_t format;
190 	uint32_t offset;
191 	int memory_id;		/* the file descriptor */
192 	uint32_t priv;
193 };
194 
195 /*
196  * {3x3} + {3} ccs matrix
197  */
198 
199 #define MDP_CCS_RGB2YUV 	0
200 #define MDP_CCS_YUV2RGB 	1
201 
202 #define MDP_CCS_SIZE	9
203 #define MDP_BV_SIZE	3
204 
205 struct mdp_ccs {
206 	int direction;			/* MDP_CCS_RGB2YUV or YUV2RGB */
207 	uint16_t ccs[MDP_CCS_SIZE];	/* 3x3 color coefficients */
208 	uint16_t bv[MDP_BV_SIZE];	/* 1x3 bias vector */
209 };
210 
211 struct mdp_csc {
212 	int id;
213 	uint32_t csc_mv[9];
214 	uint32_t csc_pre_bv[3];
215 	uint32_t csc_post_bv[3];
216 	uint32_t csc_pre_lv[6];
217 	uint32_t csc_post_lv[6];
218 };
219 
220 /* The version of the mdp_blit_req structure so that
221  * user applications can selectively decide which functionality
222  * to include
223  */
224 
225 #define MDP_BLIT_REQ_VERSION 2
226 
227 struct mdp_blit_req {
228 	struct mdp_img src;
229 	struct mdp_img dst;
230 	struct mdp_rect src_rect;
231 	struct mdp_rect dst_rect;
232 	uint32_t alpha;
233 	uint32_t transp_mask;
234 	uint32_t flags;
235 	int sharpening_strength;  /* -127 <--> 127, default 64 */
236 };
237 
238 struct mdp_blit_req_list {
239 	uint32_t count;
240 	struct mdp_blit_req req[];
241 };
242 
243 #define MSMFB_DATA_VERSION 2
244 
245 struct msmfb_data {
246 	uint32_t offset;
247 	int memory_id;
248 	int id;
249 	uint32_t flags;
250 	uint32_t priv;
251 	uint32_t iova;
252 };
253 
254 #define MSMFB_NEW_REQUEST -1
255 
256 struct msmfb_overlay_data {
257 	uint32_t id;
258 	struct msmfb_data data;
259 	uint32_t version_key;
260 	struct msmfb_data plane1_data;
261 	struct msmfb_data plane2_data;
262 	struct msmfb_data dst_data;
263 };
264 
265 struct msmfb_img {
266 	uint32_t width;
267 	uint32_t height;
268 	uint32_t format;
269 };
270 
271 #define MSMFB_WRITEBACK_DEQUEUE_BLOCKING 0x1
272 struct msmfb_writeback_data {
273 	struct msmfb_data buf_info;
274 	struct msmfb_img img;
275 };
276 
277 #define MDP_PP_OPS_READ 0x2
278 #define MDP_PP_OPS_WRITE 0x4
279 
280 struct mdp_qseed_cfg {
281 	uint32_t table_num;
282 	uint32_t ops;
283 	uint32_t len;
284 	uint32_t *data;
285 };
286 
287 struct mdp_qseed_cfg_data {
288 	uint32_t block;
289 	struct mdp_qseed_cfg qseed_data;
290 };
291 
292 #define MDP_OVERLAY_PP_CSC_CFG      0x1
293 #define MDP_OVERLAY_PP_QSEED_CFG    0x2
294 
295 #define MDP_CSC_FLAG_ENABLE	0x1
296 #define MDP_CSC_FLAG_YUV_IN	0x2
297 #define MDP_CSC_FLAG_YUV_OUT	0x4
298 
299 struct mdp_csc_cfg {
300 	/* flags for enable CSC, toggling RGB,YUV input/output */
301 	uint32_t flags;
302 	uint32_t csc_mv[9];
303 	uint32_t csc_pre_bv[3];
304 	uint32_t csc_post_bv[3];
305 	uint32_t csc_pre_lv[6];
306 	uint32_t csc_post_lv[6];
307 };
308 
309 struct mdp_csc_cfg_data {
310 	uint32_t block;
311 	struct mdp_csc_cfg csc_data;
312 };
313 
314 struct mdp_overlay_pp_params {
315 	uint32_t config_ops;
316 	struct mdp_csc_cfg csc_cfg;
317 	struct mdp_qseed_cfg qseed_cfg[2];
318 };
319 
320 struct mdp_overlay {
321 	struct msmfb_img src;
322 	struct mdp_rect src_rect;
323 	struct mdp_rect dst_rect;
324 	uint32_t z_order;	/* stage number */
325 	uint32_t is_fg;		/* control alpha & transp */
326 	uint32_t alpha;
327 	uint32_t transp_mask;
328 	uint32_t flags;
329 	uint32_t id;
330 	uint32_t user_data[8];
331 	struct mdp_overlay_pp_params overlay_pp_cfg;
332 };
333 
334 struct msmfb_overlay_3d {
335 	uint32_t is_3d;
336 	uint32_t width;
337 	uint32_t height;
338 };
339 
340 
341 struct msmfb_overlay_blt {
342 	uint32_t enable;
343 	uint32_t offset;
344 	uint32_t width;
345 	uint32_t height;
346 	uint32_t bpp;
347 };
348 
349 struct mdp_histogram {
350 	uint32_t frame_cnt;
351 	uint32_t bin_cnt;
352 	uint32_t *r;
353 	uint32_t *g;
354 	uint32_t *b;
355 };
356 
357 
358 /*
359 
360 	mdp_block_type defines the identifiers for pipes in MDP 4.3 and up
361 
362 	MDP_BLOCK_RESERVED is provided for backward compatibility and is
363 	deprecated. It corresponds to DMA_P. So MDP_BLOCK_DMA_P should be used
364 	instead.
365 
366 	MDP_LOGICAL_BLOCK_DISP_0 identifies the display pipe which fb0 uses,
367 	same for others.
368 
369 */
370 
371 enum {
372 	MDP_BLOCK_RESERVED = 0,
373 	MDP_BLOCK_OVERLAY_0,
374 	MDP_BLOCK_OVERLAY_1,
375 	MDP_BLOCK_VG_1,
376 	MDP_BLOCK_VG_2,
377 	MDP_BLOCK_RGB_1,
378 	MDP_BLOCK_RGB_2,
379 	MDP_BLOCK_DMA_P,
380 	MDP_BLOCK_DMA_S,
381 	MDP_BLOCK_DMA_E,
382 	MDP_BLOCK_OVERLAY_2,
383 	MDP_LOGICAL_BLOCK_DISP_0 = 0x1000,
384 	MDP_LOGICAL_BLOCK_DISP_1,
385 	MDP_LOGICAL_BLOCK_DISP_2,
386 	MDP_BLOCK_MAX,
387 };
388 
389 /*
390  * mdp_histogram_start_req is used to provide the parameters for
391  * histogram start request
392  */
393 
394 struct mdp_histogram_start_req {
395 	uint32_t block;
396 	uint8_t frame_cnt;
397 	uint8_t bit_mask;
398 	uint8_t num_bins;
399 };
400 
401 /*
402  * mdp_histogram_data is used to return the histogram data, once
403  * the histogram is done/stopped/cance
404  */
405 
406 struct mdp_histogram_data {
407 	uint32_t block;
408 	uint8_t bin_cnt;
409 	uint32_t *c0;
410 	uint32_t *c1;
411 	uint32_t *c2;
412 	uint32_t *extra_info;
413 };
414 
415 struct mdp_pcc_coeff {
416 	uint32_t c, r, g, b, rr, gg, bb, rg, gb, rb, rgb_0, rgb_1;
417 };
418 
419 struct mdp_pcc_cfg_data {
420 	uint32_t block;
421 	uint32_t ops;
422 	struct mdp_pcc_coeff r, g, b;
423 };
424 
425 enum {
426 	mdp_lut_igc,
427 	mdp_lut_pgc,
428 	mdp_lut_hist,
429 	mdp_lut_max,
430 };
431 
432 struct mdp_igc_lut_data {
433 	uint32_t block;
434 	uint32_t len, ops;
435 	uint32_t *c0_c1_data;
436 	uint32_t *c2_data;
437 };
438 
439 struct mdp_ar_gc_lut_data {
440 	uint32_t x_start;
441 	uint32_t slope;
442 	uint32_t offset;
443 };
444 
445 struct mdp_pgc_lut_data {
446 	uint32_t block;
447 	uint32_t flags;
448 	uint8_t num_r_stages;
449 	uint8_t num_g_stages;
450 	uint8_t num_b_stages;
451 	struct mdp_ar_gc_lut_data *r_data;
452 	struct mdp_ar_gc_lut_data *g_data;
453 	struct mdp_ar_gc_lut_data *b_data;
454 };
455 
456 
457 struct mdp_hist_lut_data {
458 	uint32_t block;
459 	uint32_t ops;
460 	uint32_t len;
461 	uint32_t *data;
462 };
463 
464 struct mdp_lut_cfg_data {
465 	uint32_t lut_type;
466 	union {
467 		struct mdp_igc_lut_data igc_lut_data;
468 		struct mdp_pgc_lut_data pgc_lut_data;
469 		struct mdp_hist_lut_data hist_lut_data;
470 	} data;
471 };
472 
473 struct mdp_bl_scale_data {
474 	uint32_t min_lvl;
475 	uint32_t scale;
476 };
477 
478 enum {
479 	mdp_op_pcc_cfg,
480 	mdp_op_csc_cfg,
481 	mdp_op_lut_cfg,
482 	mdp_op_qseed_cfg,
483 	mdp_bl_scale_cfg,
484 	mdp_op_max,
485 };
486 
487 struct msmfb_mdp_pp {
488 	uint32_t op;
489 	union {
490 		struct mdp_pcc_cfg_data pcc_cfg_data;
491 		struct mdp_csc_cfg_data csc_cfg_data;
492 		struct mdp_lut_cfg_data lut_cfg_data;
493 		struct mdp_qseed_cfg_data qseed_cfg_data;
494 		struct mdp_bl_scale_data bl_scale_data;
495 	} data;
496 };
497 
498 enum {
499 	metadata_op_none,
500 	metadata_op_base_blend,
501 	metadata_op_frame_rate,
502 	metadata_op_max
503 };
504 
505 struct mdp_blend_cfg {
506 	uint32_t is_premultiplied;
507 };
508 
509 struct msmfb_metadata {
510 	uint32_t op;
511 	uint32_t flags;
512 	union {
513 		struct mdp_blend_cfg blend_cfg;
514 		uint32_t panel_frame_rate;
515 	} data;
516 };
517 
518 #define MDP_MAX_FENCE_FD	10
519 #define MDP_BUF_SYNC_FLAG_WAIT	1
520 
521 struct mdp_buf_sync {
522 	uint32_t flags;
523 	uint32_t acq_fen_fd_cnt;
524 	int *acq_fen_fd;
525 	int *rel_fen_fd;
526 };
527 
528 struct mdp_buf_fence {
529 	uint32_t flags;
530 	uint32_t acq_fen_fd_cnt;
531 	int acq_fen_fd[MDP_MAX_FENCE_FD];
532 	int rel_fen_fd[MDP_MAX_FENCE_FD];
533 };
534 
535 #define MDP_DISPLAY_COMMIT_OVERLAY 0x00000001
536 
537 struct mdp_display_commit {
538 	uint32_t flags;
539 	uint32_t wait_for_finish;
540 	struct fb_var_screeninfo var;
541 };
542 
543 struct mdp_page_protection {
544 	uint32_t page_protection;
545 };
546 
547 
548 struct mdp_mixer_info {
549 	int pndx;
550 	int pnum;
551 	int ptype;
552 	int mixer_num;
553 	int z_order;
554 };
555 
556 #define MAX_PIPE_PER_MIXER  4
557 
558 struct msmfb_mixer_info_req {
559 	int mixer_num;
560 	int cnt;
561 	struct mdp_mixer_info info[MAX_PIPE_PER_MIXER];
562 };
563 
564 enum {
565 	DISPLAY_SUBSYSTEM_ID,
566 	ROTATOR_SUBSYSTEM_ID,
567 };
568 
569 #ifdef __KERNEL__
570 
571 /* get the framebuffer physical address information */
572 int get_fb_phys_info(unsigned long *start, unsigned long *len, int fb_num,
573 	int subsys_id);
574 struct fb_info *msm_fb_get_writeback_fb(void);
575 int msm_fb_writeback_init(struct fb_info *info);
576 int msm_fb_writeback_start(struct fb_info *info);
577 int msm_fb_writeback_queue_buffer(struct fb_info *info,
578 		struct msmfb_data *data);
579 int msm_fb_writeback_dequeue_buffer(struct fb_info *info,
580 		struct msmfb_data *data);
581 int msm_fb_writeback_stop(struct fb_info *info);
582 int msm_fb_writeback_terminate(struct fb_info *info);
583 #endif
584 
585 #endif /*_MSM_MDP_H_*/
586