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dc_spl.c

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linux-6.19.14/drivers/gpu/drm/amd/display/dc/sspl/dc_spl.c C
   1// SPDX-License-Identifier: MIT
   2//
   3// Copyright 2024 Advanced Micro Devices, Inc.
   4
   5#include "dc_spl.h"
   6#include "dc_spl_scl_easf_filters.h"
   7#include "dc_spl_isharp_filters.h"
   8#include "spl_debug.h"
   9
  10#define IDENTITY_RATIO(ratio) (spl_fixpt_u3d19(ratio) == (1 << 19))
  11#define MIN_VIEWPORT_SIZE 12
  12
  13static bool spl_is_yuv420(enum spl_pixel_format format)
  14{
  15	if ((format >= SPL_PIXEL_FORMAT_420BPP8) &&
  16		(format <= SPL_PIXEL_FORMAT_420BPP10))
  17		return true;
  18
  19	return false;
  20}
  21
  22static bool spl_is_rgb8(enum spl_pixel_format format)
  23{
  24	if (format == SPL_PIXEL_FORMAT_ARGB8888)
  25		return true;
  26
  27	return false;
  28}
  29
  30static bool spl_is_video_format(enum spl_pixel_format format)
  31{
  32	if (format >= SPL_PIXEL_FORMAT_VIDEO_BEGIN
  33		&& format <= SPL_PIXEL_FORMAT_VIDEO_END)
  34		return true;
  35	else
  36		return false;
  37}
  38
  39static bool spl_is_subsampled_format(enum spl_pixel_format format)
  40{
  41	if (format >= SPL_PIXEL_FORMAT_SUBSAMPLED_BEGIN
  42		&& format <= SPL_PIXEL_FORMAT_SUBSAMPLED_END)
  43		return true;
  44	else
  45		return false;
  46}
  47
  48static struct spl_rect intersect_rec(const struct spl_rect *r0, const struct spl_rect *r1)
  49{
  50	struct spl_rect rec;
  51	int r0_x_end = r0->x + r0->width;
  52	int r1_x_end = r1->x + r1->width;
  53	int r0_y_end = r0->y + r0->height;
  54	int r1_y_end = r1->y + r1->height;
  55
  56	rec.x = r0->x > r1->x ? r0->x : r1->x;
  57	rec.width = r0_x_end > r1_x_end ? r1_x_end - rec.x : r0_x_end - rec.x;
  58	rec.y = r0->y > r1->y ? r0->y : r1->y;
  59	rec.height = r0_y_end > r1_y_end ? r1_y_end - rec.y : r0_y_end - rec.y;
  60
  61	/* in case that there is no intersection */
  62	if (rec.width < 0 || rec.height < 0)
  63		memset(&rec, 0, sizeof(rec));
  64
  65	return rec;
  66}
  67
  68static struct spl_rect shift_rec(const struct spl_rect *rec_in, int x, int y)
  69{
  70	struct spl_rect rec_out = *rec_in;
  71
  72	rec_out.x += x;
  73	rec_out.y += y;
  74
  75	return rec_out;
  76}
  77
  78static void spl_opp_adjust_rect(struct spl_rect *rec, const struct spl_opp_adjust *adjust)
  79{
  80	if ((rec->x + adjust->x) >= 0)
  81		rec->x += adjust->x;
  82
  83	if ((rec->y + adjust->y) >= 0)
  84		rec->y += adjust->y;
  85
  86	if ((rec->width + adjust->width) >= 1)
  87		rec->width += adjust->width;
  88
  89	if ((rec->height + adjust->height) >= 1)
  90		rec->height += adjust->height;
  91}
  92
  93static struct spl_rect calculate_plane_rec_in_timing_active(
  94		struct spl_in *spl_in,
  95		const struct spl_rect *rec_in)
  96{
  97	/*
  98	 * The following diagram shows an example where we map a 1920x1200
  99	 * desktop to a 2560x1440 timing with a plane rect in the middle
 100	 * of the screen. To map a plane rect from Stream Source to Timing
 101	 * Active space, we first multiply stream scaling ratios (i.e 2304/1920
 102	 * horizontal and 1440/1200 vertical) to the plane's x and y, then
 103	 * we add stream destination offsets (i.e 128 horizontal, 0 vertical).
 104	 * This will give us a plane rect's position in Timing Active. However
 105	 * we have to remove the fractional. The rule is that we find left/right
 106	 * and top/bottom positions and round the value to the adjacent integer.
 107	 *
 108	 * Stream Source Space
 109	 * ------------
 110	 *        __________________________________________________
 111	 *       |Stream Source (1920 x 1200) ^                     |
 112	 *       |                            y                     |
 113	 *       |         <------- w --------|>                    |
 114	 *       |          __________________V                     |
 115	 *       |<-- x -->|Plane//////////////| ^                  |
 116	 *       |         |(pre scale)////////| |                  |
 117	 *       |         |///////////////////| |                  |
 118	 *       |         |///////////////////| h                  |
 119	 *       |         |///////////////////| |                  |
 120	 *       |         |///////////////////| |                  |
 121	 *       |         |///////////////////| V                  |
 122	 *       |                                                  |
 123	 *       |                                                  |
 124	 *       |__________________________________________________|
 125	 *
 126	 *
 127	 * Timing Active Space
 128	 * ---------------------------------
 129	 *
 130	 *       Timing Active (2560 x 1440)
 131	 *        __________________________________________________
 132	 *       |*****|  Stteam Destination (2304 x 1440)    |*****|
 133	 *       |*****|                                      |*****|
 134	 *       |<128>|                                      |*****|
 135	 *       |*****|     __________________               |*****|
 136	 *       |*****|    |Plane/////////////|              |*****|
 137	 *       |*****|    |(post scale)//////|              |*****|
 138	 *       |*****|    |//////////////////|              |*****|
 139	 *       |*****|    |//////////////////|              |*****|
 140	 *       |*****|    |//////////////////|              |*****|
 141	 *       |*****|    |//////////////////|              |*****|
 142	 *       |*****|                                      |*****|
 143	 *       |*****|                                      |*****|
 144	 *       |*****|                                      |*****|
 145	 *       |*****|______________________________________|*****|
 146	 *
 147	 * So the resulting formulas are shown below:
 148	 *
 149	 * recout_x = 128 + round(plane_x * 2304 / 1920)
 150	 * recout_w = 128 + round((plane_x + plane_w) * 2304 / 1920) - recout_x
 151	 * recout_y = 0 + round(plane_y * 1440 / 1200)
 152	 * recout_h = 0 + round((plane_y + plane_h) * 1440 / 1200) - recout_y
 153	 *
 154	 * NOTE: fixed point division is not error free. To reduce errors
 155	 * introduced by fixed point division, we divide only after
 156	 * multiplication is complete.
 157	 */
 158	const struct spl_rect *stream_src = &spl_in->basic_out.src_rect;
 159	const struct spl_rect *stream_dst = &spl_in->basic_out.dst_rect;
 160	struct spl_rect rec_out = {0};
 161	struct spl_fixed31_32 temp;
 162
 163
 164	temp = spl_fixpt_from_fraction(rec_in->x * (long long)stream_dst->width,
 165			stream_src->width);
 166	rec_out.x = stream_dst->x + spl_fixpt_round(temp);
 167
 168	temp = spl_fixpt_from_fraction(
 169			(rec_in->x + rec_in->width) * (long long)stream_dst->width,
 170			stream_src->width);
 171	rec_out.width = stream_dst->x + spl_fixpt_round(temp) - rec_out.x;
 172
 173	temp = spl_fixpt_from_fraction(rec_in->y * (long long)stream_dst->height,
 174			stream_src->height);
 175	rec_out.y = stream_dst->y + spl_fixpt_round(temp);
 176
 177	temp = spl_fixpt_from_fraction(
 178			(rec_in->y + rec_in->height) * (long long)stream_dst->height,
 179			stream_src->height);
 180	rec_out.height = stream_dst->y + spl_fixpt_round(temp) - rec_out.y;
 181
 182	return rec_out;
 183}
 184
 185static struct spl_rect calculate_mpc_slice_in_timing_active(
 186		struct spl_in *spl_in,
 187		struct spl_rect *plane_clip_rec)
 188{
 189	bool use_recout_width_aligned =
 190		spl_in->basic_in.num_h_slices_recout_width_align.use_recout_width_aligned;
 191	int mpc_slice_count =
 192		spl_in->basic_in.num_h_slices_recout_width_align.num_slices_recout_width.mpc_num_h_slices;
 193	int recout_width_align =
 194		spl_in->basic_in.num_h_slices_recout_width_align.num_slices_recout_width.mpc_recout_width_align;
 195	int mpc_slice_idx = spl_in->basic_in.mpc_h_slice_index;
 196	int epimo = mpc_slice_count - plane_clip_rec->width % mpc_slice_count - 1;
 197	struct spl_rect mpc_rec;
 198
 199	if (spl_in->basic_in.custom_width != 0) {
 200		mpc_rec.width = spl_in->basic_in.custom_width;
 201		mpc_rec.x = spl_in->basic_in.custom_x;
 202		mpc_rec.height = plane_clip_rec->height;
 203		mpc_rec.y = plane_clip_rec->y;
 204	} else if (use_recout_width_aligned) {
 205		mpc_rec.width = recout_width_align;
 206		if ((mpc_rec.width * (mpc_slice_idx + 1)) > plane_clip_rec->width) {
 207			mpc_rec.width = plane_clip_rec->width % recout_width_align;
 208			mpc_rec.x = plane_clip_rec->x + recout_width_align * mpc_slice_idx;
 209		} else
 210			mpc_rec.x = plane_clip_rec->x + mpc_rec.width * mpc_slice_idx;
 211		mpc_rec.height = plane_clip_rec->height;
 212		mpc_rec.y = plane_clip_rec->y;
 213
 214	} else {
 215		mpc_rec.width = plane_clip_rec->width / mpc_slice_count;
 216		mpc_rec.x = plane_clip_rec->x + mpc_rec.width * mpc_slice_idx;
 217		mpc_rec.height = plane_clip_rec->height;
 218		mpc_rec.y = plane_clip_rec->y;
 219	}
 220	SPL_ASSERT(mpc_slice_count == 1 ||
 221			spl_in->basic_out.view_format != SPL_VIEW_3D_SIDE_BY_SIDE ||
 222			mpc_rec.width % 2 == 0);
 223
 224	/* extra pixels in the division remainder need to go to pipes after
 225	 * the extra pixel index minus one(epimo) defined here as:
 226	 */
 227	if (mpc_slice_idx > epimo && spl_in->basic_in.custom_width == 0) {
 228		mpc_rec.x += mpc_slice_idx - epimo - 1;
 229		mpc_rec.width += 1;
 230	}
 231
 232	if (spl_in->basic_out.view_format == SPL_VIEW_3D_TOP_AND_BOTTOM) {
 233		SPL_ASSERT(mpc_rec.height % 2 == 0);
 234		mpc_rec.height /= 2;
 235	}
 236	return mpc_rec;
 237}
 238
 239static struct spl_rect calculate_odm_slice_in_timing_active(struct spl_in *spl_in)
 240{
 241	int odm_slice_count = spl_in->basic_out.odm_combine_factor;
 242	int odm_slice_idx = spl_in->odm_slice_index;
 243	bool is_last_odm_slice = (odm_slice_idx + 1) == odm_slice_count;
 244	int h_active = spl_in->basic_out.output_size.width;
 245	int v_active = spl_in->basic_out.output_size.height;
 246	int odm_slice_width;
 247	struct spl_rect odm_rec;
 248
 249	if (spl_in->basic_out.odm_combine_factor > 0) {
 250		odm_slice_width = h_active / odm_slice_count;
 251		/*
 252		 * deprecated, caller must pass in odm slice rect i.e OPP input
 253		 * rect in timing active for the new interface.
 254		 */
 255		if (spl_in->basic_out.use_two_pixels_per_container && (odm_slice_width % 2))
 256			odm_slice_width++;
 257
 258		odm_rec.x = odm_slice_width * odm_slice_idx;
 259		odm_rec.width = is_last_odm_slice ?
 260			/* last slice width is the reminder of h_active */
 261			h_active - odm_slice_width * (odm_slice_count - 1) :
 262			/* odm slice width is the floor of h_active / count */
 263			odm_slice_width;
 264		odm_rec.y = 0;
 265		odm_rec.height = v_active;
 266
 267		return odm_rec;
 268	}
 269
 270	return spl_in->basic_out.odm_slice_rect;
 271}
 272
 273static void spl_calculate_recout(struct spl_in *spl_in, struct spl_scratch *spl_scratch, struct spl_out *spl_out)
 274{
 275	/*
 276	 * A plane clip represents the desired plane size and position in Stream
 277	 * Source Space. Stream Source is the destination where all planes are
 278	 * blended (i.e. positioned, scaled and overlaid). It is a canvas where
 279	 * all planes associated with the current stream are drawn together.
 280	 * After Stream Source is completed, we will further scale and
 281	 * reposition the entire canvas of the stream source to Stream
 282	 * Destination in Timing Active Space. This could be due to display
 283	 * overscan adjustment where we will need to rescale and reposition all
 284	 * the planes so they can fit into a TV with overscan or downscale
 285	 * upscale features such as GPU scaling or VSR.
 286	 *
 287	 * This two step blending is a virtual procedure in software. In
 288	 * hardware there is no such thing as Stream Source. all planes are
 289	 * blended once in Timing Active Space. Software virtualizes a Stream
 290	 * Source space to decouple the math complicity so scaling param
 291	 * calculation focuses on one step at a time.
 292	 *
 293	 * In the following two diagrams, user applied 10% overscan adjustment
 294	 * so the Stream Source needs to be scaled down a little before mapping
 295	 * to Timing Active Space. As a result the Plane Clip is also scaled
 296	 * down by the same ratio, Plane Clip position (i.e. x and y) with
 297	 * respect to Stream Source is also scaled down. To map it in Timing
 298	 * Active Space additional x and y offsets from Stream Destination are
 299	 * added to Plane Clip as well.
 300	 *
 301	 * Stream Source Space
 302	 * ------------
 303	 *        __________________________________________________
 304	 *       |Stream Source (3840 x 2160) ^                     |
 305	 *       |                            y                     |
 306	 *       |                            |                     |
 307	 *       |          __________________V                     |
 308	 *       |<-- x -->|Plane Clip/////////|                    |
 309	 *       |         |(pre scale)////////|                    |
 310	 *       |         |///////////////////|                    |
 311	 *       |         |///////////////////|                    |
 312	 *       |         |///////////////////|                    |
 313	 *       |         |///////////////////|                    |
 314	 *       |         |///////////////////|                    |
 315	 *       |                                                  |
 316	 *       |                                                  |
 317	 *       |__________________________________________________|
 318	 *
 319	 *
 320	 * Timing Active Space (3840 x 2160)
 321	 * ---------------------------------
 322	 *
 323	 *       Timing Active
 324	 *        __________________________________________________
 325	 *       | y_____________________________________________   |
 326	 *       |x |Stream Destination (3456 x 1944)            |  |
 327	 *       |  |                                            |  |
 328	 *       |  |        __________________                  |  |
 329	 *       |  |       |Plane Clip////////|                 |  |
 330	 *       |  |       |(post scale)//////|                 |  |
 331	 *       |  |       |//////////////////|                 |  |
 332	 *       |  |       |//////////////////|                 |  |
 333	 *       |  |       |//////////////////|                 |  |
 334	 *       |  |       |//////////////////|                 |  |
 335	 *       |  |                                            |  |
 336	 *       |  |                                            |  |
 337	 *       |  |____________________________________________|  |
 338	 *       |__________________________________________________|
 339	 *
 340	 *
 341	 * In Timing Active Space a plane clip could be further sliced into
 342	 * pieces called MPC slices. Each Pipe Context is responsible for
 343	 * processing only one MPC slice so the plane processing workload can be
 344	 * distributed to multiple DPP Pipes. MPC slices could be blended
 345	 * together to a single ODM slice. Each ODM slice is responsible for
 346	 * processing a portion of Timing Active divided horizontally so the
 347	 * output pixel processing workload can be distributed to multiple OPP
 348	 * pipes. All ODM slices are mapped together in ODM block so all MPC
 349	 * slices belong to different ODM slices could be pieced together to
 350	 * form a single image in Timing Active. MPC slices must belong to
 351	 * single ODM slice. If an MPC slice goes across ODM slice boundary, it
 352	 * needs to be divided into two MPC slices one for each ODM slice.
 353	 *
 354	 * In the following diagram the output pixel processing workload is
 355	 * divided horizontally into two ODM slices one for each OPP blend tree.
 356	 * OPP0 blend tree is responsible for processing left half of Timing
 357	 * Active, while OPP2 blend tree is responsible for processing right
 358	 * half.
 359	 *
 360	 * The plane has two MPC slices. However since the right MPC slice goes
 361	 * across ODM boundary, two DPP pipes are needed one for each OPP blend
 362	 * tree. (i.e. DPP1 for OPP0 blend tree and DPP2 for OPP2 blend tree).
 363	 *
 364	 * Assuming that we have a Pipe Context associated with OPP0 and DPP1
 365	 * working on processing the plane in the diagram. We want to know the
 366	 * width and height of the shaded rectangle and its relative position
 367	 * with respect to the ODM slice0. This is called the recout of the pipe
 368	 * context.
 369	 *
 370	 * Planes can be at arbitrary size and position and there could be an
 371	 * arbitrary number of MPC and ODM slices. The algorithm needs to take
 372	 * all scenarios into account.
 373	 *
 374	 * Timing Active Space (3840 x 2160)
 375	 * ---------------------------------
 376	 *
 377	 *       Timing Active
 378	 *        __________________________________________________
 379	 *       |OPP0(ODM slice0)^        |OPP2(ODM slice1)        |
 380	 *       |                y        |                        |
 381	 *       |                |  <- w ->                        |
 382	 *       |           _____V________|____                    |
 383	 *       |          |DPP0 ^  |DPP1 |DPP2|                   |
 384	 *       |<------ x |-----|->|/////|    |                   |
 385	 *       |          |     |  |/////|    |                   |
 386	 *       |          |     h  |/////|    |                   |
 387	 *       |          |     |  |/////|    |                   |
 388	 *       |          |_____V__|/////|____|                   |
 389	 *       |                         |                        |
 390	 *       |                         |                        |
 391	 *       |                         |                        |
 392	 *       |_________________________|________________________|
 393	 *
 394	 *
 395	 */
 396	struct spl_rect plane_clip;
 397	struct spl_rect mpc_slice_of_plane_clip;
 398	struct spl_rect odm_slice;
 399	struct spl_rect overlapping_area;
 400
 401	plane_clip = calculate_plane_rec_in_timing_active(spl_in,
 402			&spl_in->basic_in.clip_rect);
 403	/* guard plane clip from drawing beyond stream dst here */
 404	plane_clip = intersect_rec(&plane_clip,
 405				&spl_in->basic_out.dst_rect);
 406	mpc_slice_of_plane_clip = calculate_mpc_slice_in_timing_active(
 407			spl_in, &plane_clip);
 408	odm_slice = calculate_odm_slice_in_timing_active(spl_in);
 409	overlapping_area = intersect_rec(&mpc_slice_of_plane_clip, &odm_slice);
 410
 411	if (overlapping_area.height > 0 &&
 412			overlapping_area.width > 0) {
 413		/* shift the overlapping area so it is with respect to current
 414		 * ODM slice's position
 415		 */
 416		spl_scratch->scl_data.recout = shift_rec(
 417				&overlapping_area,
 418				-odm_slice.x, -odm_slice.y);
 419		spl_scratch->scl_data.recout.height -=
 420			spl_in->debug.visual_confirm_base_offset;
 421		spl_scratch->scl_data.recout.height -=
 422			spl_in->debug.visual_confirm_dpp_offset;
 423	} else
 424		/* if there is no overlap, zero recout */
 425		memset(&spl_scratch->scl_data.recout, 0,
 426				sizeof(struct spl_rect));
 427}
 428
 429/* Calculate scaling ratios */
 430static void spl_calculate_scaling_ratios(struct spl_in *spl_in,
 431		struct spl_scratch *spl_scratch,
 432		struct spl_out *spl_out)
 433{
 434	const int in_w = spl_in->basic_out.src_rect.width;
 435	const int in_h = spl_in->basic_out.src_rect.height;
 436	const int out_w = spl_in->basic_out.dst_rect.width;
 437	const int out_h = spl_in->basic_out.dst_rect.height;
 438	struct spl_rect surf_src = spl_in->basic_in.src_rect;
 439
 440	/*Swap surf_src height and width since scaling ratios are in recout rotation*/
 441	if (spl_in->basic_in.rotation == SPL_ROTATION_ANGLE_90 ||
 442		spl_in->basic_in.rotation == SPL_ROTATION_ANGLE_270)
 443		spl_swap(surf_src.height, surf_src.width);
 444
 445	spl_scratch->scl_data.ratios.horz = spl_fixpt_from_fraction(
 446					surf_src.width,
 447					spl_in->basic_in.dst_rect.width);
 448	spl_scratch->scl_data.ratios.vert = spl_fixpt_from_fraction(
 449					surf_src.height,
 450					spl_in->basic_in.dst_rect.height);
 451
 452	if (spl_in->basic_out.view_format == SPL_VIEW_3D_SIDE_BY_SIDE)
 453		spl_scratch->scl_data.ratios.horz.value *= 2;
 454	else if (spl_in->basic_out.view_format == SPL_VIEW_3D_TOP_AND_BOTTOM)
 455		spl_scratch->scl_data.ratios.vert.value *= 2;
 456
 457	spl_scratch->scl_data.ratios.vert.value = spl_div64_s64(
 458		spl_scratch->scl_data.ratios.vert.value * in_h, out_h);
 459	spl_scratch->scl_data.ratios.horz.value = spl_div64_s64(
 460		spl_scratch->scl_data.ratios.horz.value * in_w, out_w);
 461
 462	spl_scratch->scl_data.ratios.horz_c = spl_scratch->scl_data.ratios.horz;
 463	spl_scratch->scl_data.ratios.vert_c = spl_scratch->scl_data.ratios.vert;
 464
 465	if (spl_is_yuv420(spl_in->basic_in.format)) {
 466		spl_scratch->scl_data.ratios.horz_c.value /= 2;
 467		spl_scratch->scl_data.ratios.vert_c.value /= 2;
 468	}
 469	spl_scratch->scl_data.ratios.horz = spl_fixpt_truncate(
 470			spl_scratch->scl_data.ratios.horz, 19);
 471	spl_scratch->scl_data.ratios.vert = spl_fixpt_truncate(
 472			spl_scratch->scl_data.ratios.vert, 19);
 473	spl_scratch->scl_data.ratios.horz_c = spl_fixpt_truncate(
 474			spl_scratch->scl_data.ratios.horz_c, 19);
 475	spl_scratch->scl_data.ratios.vert_c = spl_fixpt_truncate(
 476			spl_scratch->scl_data.ratios.vert_c, 19);
 477
 478	/*
 479	 * Coefficient table and some registers are different based on ratio
 480	 * that is output/input.  Currently we calculate input/output
 481	 * Store 1/ratio in recip_ratio for those lookups
 482	 */
 483	spl_scratch->scl_data.recip_ratios.horz = spl_fixpt_recip(
 484			spl_scratch->scl_data.ratios.horz);
 485	spl_scratch->scl_data.recip_ratios.vert = spl_fixpt_recip(
 486			spl_scratch->scl_data.ratios.vert);
 487	spl_scratch->scl_data.recip_ratios.horz_c = spl_fixpt_recip(
 488			spl_scratch->scl_data.ratios.horz_c);
 489	spl_scratch->scl_data.recip_ratios.vert_c = spl_fixpt_recip(
 490			spl_scratch->scl_data.ratios.vert_c);
 491}
 492
 493/* Calculate Viewport size */
 494static void spl_calculate_viewport_size(struct spl_in *spl_in, struct spl_scratch *spl_scratch)
 495{
 496	spl_scratch->scl_data.viewport.width = spl_fixpt_ceil(spl_fixpt_mul_int(spl_scratch->scl_data.ratios.horz,
 497							spl_scratch->scl_data.recout.width));
 498	spl_scratch->scl_data.viewport.height = spl_fixpt_ceil(spl_fixpt_mul_int(spl_scratch->scl_data.ratios.vert,
 499							spl_scratch->scl_data.recout.height));
 500	spl_scratch->scl_data.viewport_c.width = spl_fixpt_ceil(spl_fixpt_mul_int(spl_scratch->scl_data.ratios.horz_c,
 501						spl_scratch->scl_data.recout.width));
 502	spl_scratch->scl_data.viewport_c.height = spl_fixpt_ceil(spl_fixpt_mul_int(spl_scratch->scl_data.ratios.vert_c,
 503						spl_scratch->scl_data.recout.height));
 504	if (spl_in->basic_in.rotation == SPL_ROTATION_ANGLE_90 ||
 505			spl_in->basic_in.rotation == SPL_ROTATION_ANGLE_270) {
 506		spl_swap(spl_scratch->scl_data.viewport.width, spl_scratch->scl_data.viewport.height);
 507		spl_swap(spl_scratch->scl_data.viewport_c.width, spl_scratch->scl_data.viewport_c.height);
 508	}
 509}
 510
 511static void spl_get_vp_scan_direction(enum spl_rotation_angle rotation,
 512			   bool horizontal_mirror,
 513			   bool *orthogonal_rotation,
 514			   bool *flip_vert_scan_dir,
 515			   bool *flip_horz_scan_dir)
 516{
 517	*orthogonal_rotation = false;
 518	*flip_vert_scan_dir = false;
 519	*flip_horz_scan_dir = false;
 520	if (rotation == SPL_ROTATION_ANGLE_180) {
 521		*flip_vert_scan_dir = true;
 522		*flip_horz_scan_dir = true;
 523	} else if (rotation == SPL_ROTATION_ANGLE_90) {
 524		*orthogonal_rotation = true;
 525		*flip_horz_scan_dir = true;
 526	} else if (rotation == SPL_ROTATION_ANGLE_270) {
 527		*orthogonal_rotation = true;
 528		*flip_vert_scan_dir = true;
 529	}
 530
 531	if (horizontal_mirror)
 532		*flip_horz_scan_dir = !*flip_horz_scan_dir;
 533}
 534
 535/*
 536 * We completely calculate vp offset, size and inits here based entirely on scaling
 537 * ratios and recout for pixel perfect pipe combine.
 538 */
 539static void spl_calculate_init_and_vp(bool flip_scan_dir,
 540				int recout_offset_within_recout_full,
 541				int recout_size,
 542				int src_size,
 543				int taps,
 544				struct spl_fixed31_32 ratio,
 545				struct spl_fixed31_32 init_adj,
 546				struct spl_fixed31_32 *init,
 547				int *vp_offset,
 548				int *vp_size)
 549{
 550	struct spl_fixed31_32 temp;
 551	int int_part;
 552
 553	/*
 554	 * First of the taps starts sampling pixel number <init_int_part> corresponding to recout
 555	 * pixel 1. Next recout pixel samples int part of <init + scaling ratio> and so on.
 556	 * All following calculations are based on this logic.
 557	 *
 558	 * Init calculated according to formula:
 559	 * init = (scaling_ratio + number_of_taps + 1) / 2
 560	 * init_bot = init + scaling_ratio
 561	 * to get pixel perfect combine add the fraction from calculating vp offset
 562	 */
 563	temp = spl_fixpt_mul_int(ratio, recout_offset_within_recout_full);
 564	*vp_offset = spl_fixpt_floor(temp);
 565	temp.value &= 0xffffffff;
 566	*init = spl_fixpt_add(spl_fixpt_div_int(spl_fixpt_add_int(ratio, taps + 1), 2), temp);
 567	*init = spl_fixpt_add(*init, init_adj);
 568	*init = spl_fixpt_truncate(*init, 19);
 569
 570	/*
 571	 * If viewport has non 0 offset and there are more taps than covered by init then
 572	 * we should decrease the offset and increase init so we are never sampling
 573	 * outside of viewport.
 574	 */
 575	int_part = spl_fixpt_floor(*init);
 576	if (int_part < taps) {
 577		int_part = taps - int_part;
 578		if (int_part > *vp_offset)
 579			int_part = *vp_offset;
 580		*vp_offset -= int_part;
 581		*init = spl_fixpt_add_int(*init, int_part);
 582	}
 583	/*
 584	 * If taps are sampling outside of viewport at end of recout and there are more pixels
 585	 * available in the surface we should increase the viewport size, regardless set vp to
 586	 * only what is used.
 587	 */
 588	temp = spl_fixpt_add(*init, spl_fixpt_mul_int(ratio, recout_size - 1));
 589	*vp_size = spl_fixpt_floor(temp);
 590	if (*vp_size + *vp_offset > src_size)
 591		*vp_size = src_size - *vp_offset;
 592
 593	/* We did all the math assuming we are scanning same direction as display does,
 594	 * however mirror/rotation changes how vp scans vs how it is offset. If scan direction
 595	 * is flipped we simply need to calculate offset from the other side of plane.
 596	 * Note that outside of viewport all scaling hardware works in recout space.
 597	 */
 598	if (flip_scan_dir)
 599		*vp_offset = src_size - *vp_offset - *vp_size;
 600}
 601
 602/*Calculate inits and viewport */
 603static void spl_calculate_inits_and_viewports(struct spl_in *spl_in,
 604		struct spl_scratch *spl_scratch)
 605{
 606	struct spl_rect src = spl_in->basic_in.src_rect;
 607	struct spl_rect recout_dst_in_active_timing;
 608	struct spl_rect recout_clip_in_active_timing;
 609	struct spl_rect recout_clip_in_recout_dst;
 610	struct spl_rect overlap_in_active_timing;
 611	struct spl_rect odm_slice = calculate_odm_slice_in_timing_active(spl_in);
 612	int vpc_div = spl_is_subsampled_format(spl_in->basic_in.format) ? 2 : 1;
 613	bool orthogonal_rotation, flip_vert_scan_dir, flip_horz_scan_dir;
 614	struct spl_fixed31_32 init_adj_h = spl_fixpt_zero;
 615	struct spl_fixed31_32 init_adj_v = spl_fixpt_zero;
 616
 617	recout_clip_in_active_timing = shift_rec(
 618			&spl_scratch->scl_data.recout, odm_slice.x, odm_slice.y);
 619	recout_dst_in_active_timing = calculate_plane_rec_in_timing_active(
 620			spl_in, &spl_in->basic_in.dst_rect);
 621	overlap_in_active_timing = intersect_rec(&recout_clip_in_active_timing,
 622			&recout_dst_in_active_timing);
 623	if (overlap_in_active_timing.width > 0 &&
 624			overlap_in_active_timing.height > 0)
 625		recout_clip_in_recout_dst = shift_rec(&overlap_in_active_timing,
 626				-recout_dst_in_active_timing.x,
 627				-recout_dst_in_active_timing.y);
 628	else
 629		memset(&recout_clip_in_recout_dst, 0, sizeof(struct spl_rect));
 630	/*
 631	 * Work in recout rotation since that requires less transformations
 632	 */
 633	spl_get_vp_scan_direction(
 634			spl_in->basic_in.rotation,
 635			spl_in->basic_in.horizontal_mirror,
 636			&orthogonal_rotation,
 637			&flip_vert_scan_dir,
 638			&flip_horz_scan_dir);
 639
 640	if (spl_is_subsampled_format(spl_in->basic_in.format)) {
 641		/* this gives the direction of the cositing (negative will move
 642		 * left, right otherwise)
 643		 */
 644		int h_sign = flip_horz_scan_dir ? -1 : 1;
 645		int v_sign = flip_vert_scan_dir ? -1 : 1;
 646
 647		switch (spl_in->basic_in.cositing) {
 648		case CHROMA_COSITING_TOPLEFT:
 649			init_adj_h = spl_fixpt_from_fraction(h_sign, 4);
 650			init_adj_v = spl_fixpt_from_fraction(v_sign, 4);
 651			break;
 652		case CHROMA_COSITING_LEFT:
 653			init_adj_h = spl_fixpt_from_fraction(h_sign, 4);
 654			init_adj_v = spl_fixpt_zero;
 655			break;
 656		case CHROMA_COSITING_NONE:
 657		default:
 658			init_adj_h = spl_fixpt_zero;
 659			init_adj_v = spl_fixpt_zero;
 660			break;
 661		}
 662	}
 663
 664	if (orthogonal_rotation) {
 665		spl_swap(src.width, src.height);
 666		spl_swap(flip_vert_scan_dir, flip_horz_scan_dir);
 667		spl_swap(init_adj_h, init_adj_v);
 668	}
 669
 670	spl_calculate_init_and_vp(
 671			flip_horz_scan_dir,
 672			recout_clip_in_recout_dst.x,
 673			spl_scratch->scl_data.recout.width,
 674			src.width,
 675			spl_scratch->scl_data.taps.h_taps,
 676			spl_scratch->scl_data.ratios.horz,
 677			spl_fixpt_zero,
 678			&spl_scratch->scl_data.inits.h,
 679			&spl_scratch->scl_data.viewport.x,
 680			&spl_scratch->scl_data.viewport.width);
 681	spl_calculate_init_and_vp(
 682			flip_horz_scan_dir,
 683			recout_clip_in_recout_dst.x,
 684			spl_scratch->scl_data.recout.width,
 685			src.width / vpc_div,
 686			spl_scratch->scl_data.taps.h_taps_c,
 687			spl_scratch->scl_data.ratios.horz_c,
 688			init_adj_h,
 689			&spl_scratch->scl_data.inits.h_c,
 690			&spl_scratch->scl_data.viewport_c.x,
 691			&spl_scratch->scl_data.viewport_c.width);
 692	spl_calculate_init_and_vp(
 693			flip_vert_scan_dir,
 694			recout_clip_in_recout_dst.y,
 695			spl_scratch->scl_data.recout.height,
 696			src.height,
 697			spl_scratch->scl_data.taps.v_taps,
 698			spl_scratch->scl_data.ratios.vert,
 699			spl_fixpt_zero,
 700			&spl_scratch->scl_data.inits.v,
 701			&spl_scratch->scl_data.viewport.y,
 702			&spl_scratch->scl_data.viewport.height);
 703	spl_calculate_init_and_vp(
 704			flip_vert_scan_dir,
 705			recout_clip_in_recout_dst.y,
 706			spl_scratch->scl_data.recout.height,
 707			src.height / vpc_div,
 708			spl_scratch->scl_data.taps.v_taps_c,
 709			spl_scratch->scl_data.ratios.vert_c,
 710			init_adj_v,
 711			&spl_scratch->scl_data.inits.v_c,
 712			&spl_scratch->scl_data.viewport_c.y,
 713			&spl_scratch->scl_data.viewport_c.height);
 714	if (orthogonal_rotation) {
 715		spl_swap(spl_scratch->scl_data.viewport.x, spl_scratch->scl_data.viewport.y);
 716		spl_swap(spl_scratch->scl_data.viewport.width, spl_scratch->scl_data.viewport.height);
 717		spl_swap(spl_scratch->scl_data.viewport_c.x, spl_scratch->scl_data.viewport_c.y);
 718		spl_swap(spl_scratch->scl_data.viewport_c.width, spl_scratch->scl_data.viewport_c.height);
 719	}
 720	spl_scratch->scl_data.viewport.x += src.x;
 721	spl_scratch->scl_data.viewport.y += src.y;
 722	SPL_ASSERT(src.x % vpc_div == 0 && src.y % vpc_div == 0);
 723	spl_scratch->scl_data.viewport_c.x += src.x / vpc_div;
 724	spl_scratch->scl_data.viewport_c.y += src.y / vpc_div;
 725}
 726
 727static void spl_handle_3d_recout(struct spl_in *spl_in, struct spl_rect *recout)
 728{
 729	/*
 730	 * Handle side by side and top bottom 3d recout offsets after vp calculation
 731	 * since 3d is special and needs to calculate vp as if there is no recout offset
 732	 * This may break with rotation, good thing we aren't mixing hw rotation and 3d
 733	 */
 734	if (spl_in->basic_in.mpc_h_slice_index) {
 735		SPL_ASSERT(spl_in->basic_in.rotation == SPL_ROTATION_ANGLE_0 ||
 736			(spl_in->basic_out.view_format != SPL_VIEW_3D_TOP_AND_BOTTOM &&
 737					spl_in->basic_out.view_format != SPL_VIEW_3D_SIDE_BY_SIDE));
 738		if (spl_in->basic_out.view_format == SPL_VIEW_3D_TOP_AND_BOTTOM)
 739			recout->y += recout->height;
 740		else if (spl_in->basic_out.view_format == SPL_VIEW_3D_SIDE_BY_SIDE)
 741			recout->x += recout->width;
 742	}
 743}
 744
 745static void spl_clamp_viewport(struct spl_rect *viewport, int min_viewport_size)
 746{
 747	if (min_viewport_size == 0)
 748		min_viewport_size = MIN_VIEWPORT_SIZE;
 749	/* Clamp minimum viewport size */
 750	if (viewport->height < min_viewport_size)
 751		viewport->height = min_viewport_size;
 752	if (viewport->width < min_viewport_size)
 753		viewport->width = min_viewport_size;
 754}
 755
 756static enum scl_mode spl_get_dscl_mode(const struct spl_in *spl_in,
 757				const struct spl_scaler_data *data,
 758				bool enable_isharp, bool enable_easf)
 759{
 760	const long long one = spl_fixpt_one.value;
 761	enum spl_pixel_format pixel_format = spl_in->basic_in.format;
 762
 763	/* Bypass if ratio is 1:1 with no ISHARP or force scale on */
 764	if (data->ratios.horz.value == one
 765			&& data->ratios.vert.value == one
 766			&& data->ratios.horz_c.value == one
 767			&& data->ratios.vert_c.value == one
 768			&& !spl_in->basic_out.always_scale
 769			&& !enable_isharp)
 770		return SCL_MODE_SCALING_444_BYPASS;
 771
 772	if (!spl_is_subsampled_format(pixel_format)) {
 773		if (spl_is_video_format(pixel_format))
 774			return SCL_MODE_SCALING_444_YCBCR_ENABLE;
 775		else
 776			return SCL_MODE_SCALING_444_RGB_ENABLE;
 777	}
 778
 779	/*
 780	 * Bypass YUV if Y is 1:1 with no ISHARP
 781	 * Do not bypass UV at 1:1 for cositing to be applied
 782	 */
 783	if (!enable_isharp) {
 784		if (data->ratios.horz.value == one && data->ratios.vert.value == one && !spl_in->basic_out.always_scale)
 785			return SCL_MODE_SCALING_420_LUMA_BYPASS;
 786	}
 787
 788	return SCL_MODE_SCALING_420_YCBCR_ENABLE;
 789}
 790
 791static void spl_choose_lls_policy(enum spl_pixel_format format,
 792	enum linear_light_scaling *lls_pref)
 793{
 794	if (spl_is_subsampled_format(format))
 795		*lls_pref = LLS_PREF_NO;
 796	else /* RGB or YUV444 */
 797		*lls_pref = LLS_PREF_YES;
 798}
 799
 800/* Enable EASF ?*/
 801static bool enable_easf(struct spl_in *spl_in, struct spl_scratch *spl_scratch)
 802{
 803	int vratio = 0;
 804	int hratio = 0;
 805	bool skip_easf = false;
 806
 807	if (spl_in->disable_easf)
 808		skip_easf = true;
 809
 810	vratio = spl_fixpt_ceil(spl_scratch->scl_data.ratios.vert);
 811	hratio = spl_fixpt_ceil(spl_scratch->scl_data.ratios.horz);
 812
 813	/*
 814	 * No EASF support for downscaling > 2:1
 815	 * EASF support for upscaling or downscaling up to 2:1
 816	 */
 817	if ((vratio > 2) || (hratio > 2))
 818		skip_easf = true;
 819
 820	/*
 821	 * If lls_pref is LLS_PREF_DONT_CARE, then use pixel format
 822	 *  to determine whether to use LINEAR or NONLINEAR scaling
 823	 */
 824	if (spl_in->lls_pref == LLS_PREF_DONT_CARE)
 825		spl_choose_lls_policy(spl_in->basic_in.format,
 826			&spl_in->lls_pref);
 827
 828	/* Check for linear scaling or EASF preferred */
 829	if (spl_in->lls_pref != LLS_PREF_YES && !spl_in->prefer_easf)
 830		skip_easf = true;
 831
 832	return skip_easf;
 833}
 834
 835/* Check if video is in fullscreen mode */
 836static bool spl_is_video_fullscreen(struct spl_in *spl_in)
 837{
 838	if (spl_is_video_format(spl_in->basic_in.format) && spl_in->is_fullscreen)
 839		return true;
 840	return false;
 841}
 842
 843static bool spl_get_isharp_en(struct spl_in *spl_in,
 844	struct spl_scratch *spl_scratch)
 845{
 846	bool enable_isharp = false;
 847	int vratio = 0;
 848	int hratio = 0;
 849	struct spl_taps taps = spl_scratch->scl_data.taps;
 850	bool fullscreen = spl_is_video_fullscreen(spl_in);
 851
 852	/* Return if adaptive sharpness is disabled */
 853	if (spl_in->adaptive_sharpness.enable == false)
 854		return enable_isharp;
 855
 856	vratio = spl_fixpt_ceil(spl_scratch->scl_data.ratios.vert);
 857	hratio = spl_fixpt_ceil(spl_scratch->scl_data.ratios.horz);
 858
 859	/* No iSHARP support for downscaling */
 860	if (vratio > 1 || hratio > 1)
 861		return enable_isharp;
 862
 863	// Scaling is up to 1:1 (no scaling) or upscaling
 864
 865	/*
 866	 * Apply sharpness to RGB and YUV (NV12/P010)
 867	 *  surfaces based on policy setting
 868	 */
 869	if (!spl_is_video_format(spl_in->basic_in.format) &&
 870		(spl_in->sharpen_policy == SHARPEN_YUV))
 871		return enable_isharp;
 872	else if ((spl_is_video_format(spl_in->basic_in.format) && !fullscreen) &&
 873		(spl_in->sharpen_policy == SHARPEN_RGB_FULLSCREEN_YUV))
 874		return enable_isharp;
 875	else if (!spl_in->is_fullscreen &&
 876			spl_in->sharpen_policy == SHARPEN_FULLSCREEN_ALL)
 877		return enable_isharp;
 878
 879	/*
 880	 * Apply sharpness if supports horizontal taps 4,6 AND
 881	 *  vertical taps 3, 4, 6
 882	 */
 883	if ((taps.h_taps == 4 || taps.h_taps == 6) &&
 884		(taps.v_taps == 3 || taps.v_taps == 4 || taps.v_taps == 6))
 885		enable_isharp = true;
 886
 887	return enable_isharp;
 888}
 889
 890/* Calculate number of tap with adaptive scaling off */
 891static void spl_get_taps_non_adaptive_scaler(
 892		struct spl_scratch *spl_scratch,
 893		const struct spl_taps *in_taps,
 894		bool is_subsampled)
 895{
 896	bool check_max_downscale = false;
 897
 898	if (in_taps->h_taps == 0) {
 899		if (spl_fixpt_ceil(spl_scratch->scl_data.ratios.horz) > 1)
 900			spl_scratch->scl_data.taps.h_taps = spl_min(2 * spl_fixpt_ceil(
 901				spl_scratch->scl_data.ratios.horz), 8);
 902		else
 903			spl_scratch->scl_data.taps.h_taps = 4;
 904	} else
 905		spl_scratch->scl_data.taps.h_taps = in_taps->h_taps;
 906
 907	if (in_taps->v_taps == 0) {
 908		if (spl_fixpt_ceil(spl_scratch->scl_data.ratios.vert) > 1)
 909			spl_scratch->scl_data.taps.v_taps = spl_min(2 * spl_fixpt_ceil(
 910				spl_scratch->scl_data.ratios.vert), 8);
 911		else
 912			spl_scratch->scl_data.taps.v_taps = 4;
 913	} else
 914		spl_scratch->scl_data.taps.v_taps = in_taps->v_taps;
 915
 916	if (in_taps->v_taps_c == 0) {
 917		if (spl_fixpt_ceil(spl_scratch->scl_data.ratios.vert_c) > 1)
 918			spl_scratch->scl_data.taps.v_taps_c = spl_min(2 * spl_fixpt_ceil(
 919				spl_scratch->scl_data.ratios.vert_c), 8);
 920		else
 921			spl_scratch->scl_data.taps.v_taps_c = 4;
 922	} else
 923		spl_scratch->scl_data.taps.v_taps_c = in_taps->v_taps_c;
 924
 925	if (in_taps->h_taps_c == 0) {
 926		if (spl_fixpt_ceil(spl_scratch->scl_data.ratios.horz_c) > 1)
 927			spl_scratch->scl_data.taps.h_taps_c = spl_min(2 * spl_fixpt_ceil(
 928				spl_scratch->scl_data.ratios.horz_c), 8);
 929		else
 930			spl_scratch->scl_data.taps.h_taps_c = 4;
 931	} else if ((in_taps->h_taps_c % 2) != 0 && in_taps->h_taps_c != 1)
 932		/* Only 1 and even h_taps_c are supported by hw */
 933		spl_scratch->scl_data.taps.h_taps_c = in_taps->h_taps_c - 1;
 934	else
 935		spl_scratch->scl_data.taps.h_taps_c = in_taps->h_taps_c;
 936
 937
 938	/*
 939	 * Max downscale supported is 6.0x.  Add ASSERT to catch if go beyond that
 940	 */
 941	check_max_downscale = spl_fixpt_le(spl_scratch->scl_data.ratios.horz,
 942		spl_fixpt_from_fraction(6, 1));
 943	SPL_ASSERT(check_max_downscale);
 944	check_max_downscale = spl_fixpt_le(spl_scratch->scl_data.ratios.vert,
 945		spl_fixpt_from_fraction(6, 1));
 946	SPL_ASSERT(check_max_downscale);
 947	check_max_downscale = spl_fixpt_le(spl_scratch->scl_data.ratios.horz_c,
 948		spl_fixpt_from_fraction(6, 1));
 949	SPL_ASSERT(check_max_downscale);
 950	check_max_downscale = spl_fixpt_le(spl_scratch->scl_data.ratios.vert_c,
 951		spl_fixpt_from_fraction(6, 1));
 952	SPL_ASSERT(check_max_downscale);
 953
 954
 955	if (IDENTITY_RATIO(spl_scratch->scl_data.ratios.horz))
 956		spl_scratch->scl_data.taps.h_taps = 1;
 957	if (IDENTITY_RATIO(spl_scratch->scl_data.ratios.vert))
 958		spl_scratch->scl_data.taps.v_taps = 1;
 959	if (IDENTITY_RATIO(spl_scratch->scl_data.ratios.horz_c) && !is_subsampled)
 960		spl_scratch->scl_data.taps.h_taps_c = 1;
 961	if (IDENTITY_RATIO(spl_scratch->scl_data.ratios.vert_c) && !is_subsampled)
 962		spl_scratch->scl_data.taps.v_taps_c = 1;
 963
 964}
 965
 966/* Calculate optimal number of taps */
 967static bool spl_get_optimal_number_of_taps(
 968	  int max_downscale_src_width, struct spl_in *spl_in, struct spl_scratch *spl_scratch,
 969	  const struct spl_taps *in_taps, bool *enable_easf_v, bool *enable_easf_h,
 970	  bool *enable_isharp)
 971{
 972	int num_part_y, num_part_c;
 973	unsigned int max_taps_y, max_taps_c;
 974	unsigned int min_taps_y, min_taps_c;
 975	enum lb_memory_config lb_config;
 976	bool skip_easf          = false;
 977	bool is_subsampled = spl_is_subsampled_format(spl_in->basic_in.format);
 978
 979	if (spl_scratch->scl_data.viewport.width > spl_scratch->scl_data.h_active &&
 980		max_downscale_src_width != 0 &&
 981		spl_scratch->scl_data.viewport.width > max_downscale_src_width) {
 982		spl_get_taps_non_adaptive_scaler(spl_scratch, in_taps, is_subsampled);
 983		*enable_easf_v = false;
 984		*enable_easf_h = false;
 985		*enable_isharp = false;
 986		return false;
 987	}
 988
 989	/* Disable adaptive scaler and sharpener when integer scaling is enabled */
 990	if (spl_in->scaling_quality.integer_scaling) {
 991		spl_get_taps_non_adaptive_scaler(spl_scratch, in_taps, is_subsampled);
 992		*enable_easf_v = false;
 993		*enable_easf_h = false;
 994		*enable_isharp = false;
 995		return true;
 996	}
 997
 998	/* Check if we are using EASF or not */
 999	skip_easf = enable_easf(spl_in, spl_scratch);
1000
1001	/*
1002	 * Set default taps if none are provided
1003	 * From programming guide: taps = min{ ceil(2*H_RATIO,1), 8} for downscaling
1004	 * taps = 4 for upscaling
1005	 */
1006	if (skip_easf) {
1007		spl_get_taps_non_adaptive_scaler(spl_scratch, in_taps, is_subsampled);
1008	}
1009	else {
1010		if (spl_is_video_format(spl_in->basic_in.format)) {
1011			spl_scratch->scl_data.taps.h_taps = 6;
1012			spl_scratch->scl_data.taps.v_taps = 6;
1013			spl_scratch->scl_data.taps.h_taps_c = 4;
1014			spl_scratch->scl_data.taps.v_taps_c = 4;
1015		} else { /* RGB */
1016			spl_scratch->scl_data.taps.h_taps = 6;
1017			spl_scratch->scl_data.taps.v_taps = 6;
1018			spl_scratch->scl_data.taps.h_taps_c = 6;
1019			spl_scratch->scl_data.taps.v_taps_c = 6;
1020		}
1021
1022		/* Override mode: keep EASF enabled but use input taps if valid */
1023		if (spl_in->override_easf) {
1024			spl_scratch->scl_data.taps.h_taps = (in_taps->h_taps != 0) ? in_taps->h_taps : spl_scratch->scl_data.taps.h_taps;
1025			spl_scratch->scl_data.taps.v_taps = (in_taps->v_taps != 0) ? in_taps->v_taps : spl_scratch->scl_data.taps.v_taps;
1026			spl_scratch->scl_data.taps.h_taps_c = (in_taps->h_taps_c != 0) ? in_taps->h_taps_c : spl_scratch->scl_data.taps.h_taps_c;
1027			spl_scratch->scl_data.taps.v_taps_c = (in_taps->v_taps_c != 0) ? in_taps->v_taps_c : spl_scratch->scl_data.taps.v_taps_c;
1028
1029			if ((spl_scratch->scl_data.taps.h_taps > 6) || (spl_scratch->scl_data.taps.v_taps > 6))
1030				skip_easf = true;
1031			if ((spl_scratch->scl_data.taps.h_taps > 1) && (spl_scratch->scl_data.taps.h_taps % 2))
1032				spl_scratch->scl_data.taps.h_taps--;
1033			if ((spl_scratch->scl_data.taps.h_taps_c > 1) && (spl_scratch->scl_data.taps.h_taps_c % 2))
1034				spl_scratch->scl_data.taps.h_taps_c--;
1035		}
1036	}
1037
1038	/*Ensure we can support the requested number of vtaps*/
1039	min_taps_y = spl_fixpt_ceil(spl_scratch->scl_data.ratios.vert);
1040	min_taps_c = spl_fixpt_ceil(spl_scratch->scl_data.ratios.vert_c);
1041
1042	/* Use LB_MEMORY_CONFIG_3 for 4:2:0 */
1043	if (spl_is_yuv420(spl_in->basic_in.format))
1044		lb_config = LB_MEMORY_CONFIG_3;
1045	else
1046		lb_config = LB_MEMORY_CONFIG_0;
1047	// Determine max vtap support by calculating how much line buffer can fit
1048	spl_in->callbacks.spl_calc_lb_num_partitions(spl_in->basic_out.alpha_en, &spl_scratch->scl_data,
1049			lb_config, &num_part_y, &num_part_c);
1050	/* MAX_V_TAPS = MIN (NUM_LINES - MAX(CEILING(V_RATIO,1)-2, 0), 8) */
1051	if (spl_fixpt_ceil(spl_scratch->scl_data.ratios.vert) > 2)
1052		if ((spl_fixpt_ceil(spl_scratch->scl_data.ratios.vert) - 2) > num_part_y)
1053			max_taps_y = 0;
1054		else
1055			max_taps_y = num_part_y - (spl_fixpt_ceil(spl_scratch->scl_data.ratios.vert) - 2);
1056	else
1057		max_taps_y = num_part_y;
1058
1059	if (spl_fixpt_ceil(spl_scratch->scl_data.ratios.vert_c) > 2)
1060		if ((spl_fixpt_ceil(spl_scratch->scl_data.ratios.vert_c) - 2) > num_part_c)
1061			max_taps_c = 0;
1062		else
1063			max_taps_c = num_part_c - (spl_fixpt_ceil(spl_scratch->scl_data.ratios.vert_c) - 2);
1064	else
1065		max_taps_c = num_part_c;
1066
1067	if (max_taps_y < min_taps_y)
1068		return false;
1069	else if (max_taps_c < min_taps_c)
1070		return false;
1071
1072	if (spl_scratch->scl_data.taps.v_taps > max_taps_y)
1073		spl_scratch->scl_data.taps.v_taps = max_taps_y;
1074
1075	if (spl_scratch->scl_data.taps.v_taps_c > max_taps_c)
1076		spl_scratch->scl_data.taps.v_taps_c = max_taps_c;
1077
1078	if (!skip_easf) {
1079		/*
1080		 * RGB ( L + NL ) and Linear HDR support 6x6, 6x4, 6x3, 4x4, 4x3
1081		 * NL YUV420 only supports 6x6, 6x4 for Y and 4x4 for UV
1082		 *
1083		 * If LB does not support 3, 4, or 6 taps, then disable EASF_V
1084		 *  and only enable EASF_H.  So for RGB, support 6x2, 4x2
1085		 *  and for NL YUV420, support 6x2 for Y and 4x2 for UV
1086		 *
1087		 * All other cases, have to disable EASF_V and EASF_H
1088		 *
1089		 * If optimal no of taps is 5, then set it to 4
1090		 * If optimal no of taps is 7 or 8, then fine since max tap is 6
1091		 *
1092		 */
1093		if (spl_scratch->scl_data.taps.v_taps == 5)
1094			spl_scratch->scl_data.taps.v_taps = 4;
1095
1096		if (spl_scratch->scl_data.taps.v_taps_c == 5)
1097			spl_scratch->scl_data.taps.v_taps_c = 4;
1098
1099		if (spl_scratch->scl_data.taps.h_taps == 5)
1100			spl_scratch->scl_data.taps.h_taps = 4;
1101
1102		if (spl_scratch->scl_data.taps.h_taps_c == 5)
1103			spl_scratch->scl_data.taps.h_taps_c = 4;
1104
1105		if (spl_is_video_format(spl_in->basic_in.format)) {
1106			if (spl_scratch->scl_data.taps.h_taps <= 4) {
1107				*enable_easf_v = false;
1108				*enable_easf_h = false;
1109			} else if (spl_scratch->scl_data.taps.v_taps <= 3) {
1110				*enable_easf_v = false;
1111				*enable_easf_h = true;
1112			} else {
1113				*enable_easf_v = true;
1114				*enable_easf_h = true;
1115			}
1116			SPL_ASSERT((spl_scratch->scl_data.taps.v_taps > 1) &&
1117				(spl_scratch->scl_data.taps.v_taps_c > 1));
1118		} else { /* RGB */
1119			if (spl_scratch->scl_data.taps.h_taps <= 3) {
1120				*enable_easf_v = false;
1121				*enable_easf_h = false;
1122			} else if (spl_scratch->scl_data.taps.v_taps < 3) {
1123				*enable_easf_v = false;
1124				*enable_easf_h = true;
1125			} else {
1126				*enable_easf_v = true;
1127				*enable_easf_h = true;
1128			}
1129			SPL_ASSERT(spl_scratch->scl_data.taps.v_taps > 1);
1130		}
1131	} else {
1132		*enable_easf_v = false;
1133		*enable_easf_h = false;
1134	} // end of if prefer_easf
1135
1136	/* Sharpener requires scaler to be enabled, including for 1:1
1137	 * Check if ISHARP can be enabled
1138	 * If ISHARP is not enabled, set taps to 1 if ratio is 1:1
1139	 *  except for chroma taps.  Keep previous taps so it can
1140	 *  handle cositing
1141	 */
1142
1143	*enable_isharp = spl_get_isharp_en(spl_in, spl_scratch);
1144	if (!*enable_isharp && !spl_in->basic_out.always_scale)	{
1145		if ((IDENTITY_RATIO(spl_scratch->scl_data.ratios.horz)) &&
1146			(IDENTITY_RATIO(spl_scratch->scl_data.ratios.vert))) {
1147			spl_scratch->scl_data.taps.h_taps = 1;
1148			spl_scratch->scl_data.taps.v_taps = 1;
1149			if (IDENTITY_RATIO(spl_scratch->scl_data.ratios.horz_c) && !is_subsampled)
1150				spl_scratch->scl_data.taps.h_taps_c = 1;
1151
1152			if (IDENTITY_RATIO(spl_scratch->scl_data.ratios.vert_c) && !is_subsampled)
1153				spl_scratch->scl_data.taps.v_taps_c = 1;
1154
1155			*enable_easf_v = false;
1156			*enable_easf_h = false;
1157		} else {
1158			if ((!*enable_easf_h) &&
1159				(IDENTITY_RATIO(spl_scratch->scl_data.ratios.horz)))
1160				spl_scratch->scl_data.taps.h_taps = 1;
1161
1162			if ((!*enable_easf_v) &&
1163				(IDENTITY_RATIO(spl_scratch->scl_data.ratios.vert)))
1164				spl_scratch->scl_data.taps.v_taps = 1;
1165
1166			if ((!*enable_easf_h) && !is_subsampled &&
1167				(IDENTITY_RATIO(spl_scratch->scl_data.ratios.horz_c)))
1168				spl_scratch->scl_data.taps.h_taps_c = 1;
1169
1170			if ((!*enable_easf_v) && !is_subsampled &&
1171				(IDENTITY_RATIO(spl_scratch->scl_data.ratios.vert_c)))
1172				spl_scratch->scl_data.taps.v_taps_c = 1;
1173
1174		}
1175	}
1176	return true;
1177}
1178
1179static void spl_set_black_color_data(enum spl_pixel_format format,
1180			struct scl_black_color *scl_black_color)
1181{
1182	bool ycbcr = spl_is_video_format(format);
1183	if (ycbcr)	{
1184		scl_black_color->offset_rgb_y = BLACK_OFFSET_RGB_Y;
1185		scl_black_color->offset_rgb_cbcr = BLACK_OFFSET_CBCR;
1186	}	else {
1187		scl_black_color->offset_rgb_y = 0x0;
1188		scl_black_color->offset_rgb_cbcr = 0x0;
1189	}
1190}
1191
1192static void spl_set_manual_ratio_init_data(struct dscl_prog_data *dscl_prog_data,
1193		const struct spl_scaler_data *scl_data)
1194{
1195	struct spl_fixed31_32 bot;
1196
1197	dscl_prog_data->ratios.h_scale_ratio = spl_fixpt_u3d19(scl_data->ratios.horz) << 5;
1198	dscl_prog_data->ratios.v_scale_ratio = spl_fixpt_u3d19(scl_data->ratios.vert) << 5;
1199	dscl_prog_data->ratios.h_scale_ratio_c = spl_fixpt_u3d19(scl_data->ratios.horz_c) << 5;
1200	dscl_prog_data->ratios.v_scale_ratio_c = spl_fixpt_u3d19(scl_data->ratios.vert_c) << 5;
1201	/*
1202	 * 0.24 format for fraction, first five bits zeroed
1203	 */
1204	dscl_prog_data->init.h_filter_init_frac =
1205			spl_fixpt_u0d19(scl_data->inits.h) << 5;
1206	dscl_prog_data->init.h_filter_init_int =
1207			spl_fixpt_floor(scl_data->inits.h);
1208	dscl_prog_data->init.h_filter_init_frac_c =
1209			spl_fixpt_u0d19(scl_data->inits.h_c) << 5;
1210	dscl_prog_data->init.h_filter_init_int_c =
1211			spl_fixpt_floor(scl_data->inits.h_c);
1212	dscl_prog_data->init.v_filter_init_frac =
1213			spl_fixpt_u0d19(scl_data->inits.v) << 5;
1214	dscl_prog_data->init.v_filter_init_int =
1215			spl_fixpt_floor(scl_data->inits.v);
1216	dscl_prog_data->init.v_filter_init_frac_c =
1217			spl_fixpt_u0d19(scl_data->inits.v_c) << 5;
1218	dscl_prog_data->init.v_filter_init_int_c =
1219			spl_fixpt_floor(scl_data->inits.v_c);
1220
1221	bot = spl_fixpt_add(scl_data->inits.v, scl_data->ratios.vert);
1222	dscl_prog_data->init.v_filter_init_bot_frac = spl_fixpt_u0d19(bot) << 5;
1223	dscl_prog_data->init.v_filter_init_bot_int = spl_fixpt_floor(bot);
1224	bot = spl_fixpt_add(scl_data->inits.v_c, scl_data->ratios.vert_c);
1225	dscl_prog_data->init.v_filter_init_bot_frac_c = spl_fixpt_u0d19(bot) << 5;
1226	dscl_prog_data->init.v_filter_init_bot_int_c = spl_fixpt_floor(bot);
1227}
1228
1229static void spl_set_taps_data(struct dscl_prog_data *dscl_prog_data,
1230		const struct spl_scaler_data *scl_data)
1231{
1232	dscl_prog_data->taps.v_taps = scl_data->taps.v_taps - 1;
1233	dscl_prog_data->taps.h_taps = scl_data->taps.h_taps - 1;
1234	dscl_prog_data->taps.v_taps_c = scl_data->taps.v_taps_c - 1;
1235	dscl_prog_data->taps.h_taps_c = scl_data->taps.h_taps_c - 1;
1236}
1237
1238/* Populate dscl prog data structure from scaler data calculated by SPL */
1239static void spl_set_dscl_prog_data(struct spl_in *spl_in, struct spl_scratch *spl_scratch,
1240	struct spl_out *spl_out, bool enable_easf_v, bool enable_easf_h, bool enable_isharp)
1241{
1242	struct dscl_prog_data *dscl_prog_data = spl_out->dscl_prog_data;
1243
1244	const struct spl_scaler_data *data = &spl_scratch->scl_data;
1245
1246	struct scl_black_color *scl_black_color = &dscl_prog_data->scl_black_color;
1247
1248	bool enable_easf = enable_easf_v || enable_easf_h;
1249
1250	// Set values for recout
1251	dscl_prog_data->recout = spl_scratch->scl_data.recout;
1252	// Set values for MPC Size
1253	dscl_prog_data->mpc_size.width = spl_scratch->scl_data.h_active;
1254	dscl_prog_data->mpc_size.height = spl_scratch->scl_data.v_active;
1255
1256	// SCL_MODE - Set SCL_MODE data
1257	dscl_prog_data->dscl_mode = spl_get_dscl_mode(spl_in, data, enable_isharp,
1258		enable_easf);
1259
1260	// SCL_BLACK_COLOR
1261	spl_set_black_color_data(spl_in->basic_in.format, scl_black_color);
1262
1263	/* Manually calculate scale ratio and init values */
1264	spl_set_manual_ratio_init_data(dscl_prog_data, data);
1265
1266	// Set HTaps/VTaps
1267	spl_set_taps_data(dscl_prog_data, data);
1268	// Set viewport
1269	dscl_prog_data->viewport = spl_scratch->scl_data.viewport;
1270	// Set viewport_c
1271	dscl_prog_data->viewport_c = spl_scratch->scl_data.viewport_c;
1272	// Set filters data
1273	spl_set_filters_data(dscl_prog_data, data, enable_easf_v, enable_easf_h);
1274}
1275
1276/* Calculate C0-C3 coefficients based on HDR_mult */
1277static void spl_calculate_c0_c3_hdr(struct dscl_prog_data *dscl_prog_data, uint32_t sdr_white_level_nits)
1278{
1279	struct spl_fixed31_32 hdr_mult, c0_mult, c1_mult, c2_mult;
1280	struct spl_fixed31_32 c0_calc, c1_calc, c2_calc;
1281	struct spl_custom_float_format fmt;
1282	uint32_t hdr_multx100_int;
1283
1284	if ((sdr_white_level_nits >= 80) && (sdr_white_level_nits <= 480))
1285		hdr_multx100_int = sdr_white_level_nits * 100 / 80;
1286	else
1287		hdr_multx100_int = 100; /* default for 80 nits otherwise */
1288
1289	hdr_mult = spl_fixpt_from_fraction((long long)hdr_multx100_int, 100LL);
1290	c0_mult = spl_fixpt_from_fraction(2126LL, 10000LL);
1291	c1_mult = spl_fixpt_from_fraction(7152LL, 10000LL);
1292	c2_mult = spl_fixpt_from_fraction(722LL, 10000LL);
1293
1294	c0_calc = spl_fixpt_mul(hdr_mult, spl_fixpt_mul(c0_mult, spl_fixpt_from_fraction(
1295		16384LL, 125LL)));
1296	c1_calc = spl_fixpt_mul(hdr_mult, spl_fixpt_mul(c1_mult, spl_fixpt_from_fraction(
1297		16384LL, 125LL)));
1298	c2_calc = spl_fixpt_mul(hdr_mult, spl_fixpt_mul(c2_mult, spl_fixpt_from_fraction(
1299		16384LL, 125LL)));
1300
1301	fmt.exponenta_bits = 5;
1302	fmt.mantissa_bits = 10;
1303	fmt.sign = true;
1304
1305	// fp1.5.10, C0 coefficient (LN_rec709:  HDR_MULT * 0.212600 * 2^14/125)
1306	spl_convert_to_custom_float_format(c0_calc, &fmt, &dscl_prog_data->easf_matrix_c0);
1307	// fp1.5.10, C1 coefficient (LN_rec709:  HDR_MULT * 0.715200 * 2^14/125)
1308	spl_convert_to_custom_float_format(c1_calc, &fmt, &dscl_prog_data->easf_matrix_c1);
1309	// fp1.5.10, C2 coefficient (LN_rec709:  HDR_MULT * 0.072200 * 2^14/125)
1310	spl_convert_to_custom_float_format(c2_calc, &fmt, &dscl_prog_data->easf_matrix_c2);
1311	dscl_prog_data->easf_matrix_c3 = 0x0; // fp1.5.10, C3 coefficient
1312}
1313
1314/* Set EASF data */
1315static void spl_set_easf_data(struct spl_scratch *spl_scratch, struct spl_out *spl_out, bool enable_easf_v,
1316	bool enable_easf_h, enum linear_light_scaling lls_pref,
1317	enum spl_pixel_format format, enum system_setup setup,
1318	uint32_t sdr_white_level_nits)
1319{
1320	struct dscl_prog_data *dscl_prog_data = spl_out->dscl_prog_data;
1321	if (enable_easf_v) {
1322		dscl_prog_data->easf_v_en = true;
1323		dscl_prog_data->easf_v_ring = 0;
1324		dscl_prog_data->easf_v_sharp_factor = 1;
1325		dscl_prog_data->easf_v_bf1_en = 1;	// 1-bit, BF1 calculation enable, 0=disable, 1=enable
1326		dscl_prog_data->easf_v_bf2_mode = 0xF;	// 4-bit, BF2 calculation mode
1327		/* 2-bit, BF3 chroma mode correction calculation mode */
1328		dscl_prog_data->easf_v_bf3_mode = spl_get_v_bf3_mode(
1329			spl_scratch->scl_data.recip_ratios.vert);
1330		/* FP1.5.10 [ minCoef ]*/
1331		dscl_prog_data->easf_v_ringest_3tap_dntilt_uptilt =
1332			spl_get_3tap_dntilt_uptilt_offset(spl_scratch->scl_data.taps.v_taps,
1333				spl_scratch->scl_data.recip_ratios.vert);
1334		/* FP1.5.10 [ upTiltMaxVal ]*/
1335		dscl_prog_data->easf_v_ringest_3tap_uptilt_max =
1336			spl_get_3tap_uptilt_maxval(spl_scratch->scl_data.taps.v_taps,
1337				spl_scratch->scl_data.recip_ratios.vert);
1338		/* FP1.5.10 [ dnTiltSlope ]*/
1339		dscl_prog_data->easf_v_ringest_3tap_dntilt_slope =
1340			spl_get_3tap_dntilt_slope(spl_scratch->scl_data.taps.v_taps,
1341				spl_scratch->scl_data.recip_ratios.vert);
1342		/* FP1.5.10 [ upTilt1Slope ]*/
1343		dscl_prog_data->easf_v_ringest_3tap_uptilt1_slope =
1344			spl_get_3tap_uptilt1_slope(spl_scratch->scl_data.taps.v_taps,
1345				spl_scratch->scl_data.recip_ratios.vert);
1346		/* FP1.5.10 [ upTilt2Slope ]*/
1347		dscl_prog_data->easf_v_ringest_3tap_uptilt2_slope =
1348			spl_get_3tap_uptilt2_slope(spl_scratch->scl_data.taps.v_taps,
1349				spl_scratch->scl_data.recip_ratios.vert);
1350		/* FP1.5.10 [ upTilt2Offset ]*/
1351		dscl_prog_data->easf_v_ringest_3tap_uptilt2_offset =
1352			spl_get_3tap_uptilt2_offset(spl_scratch->scl_data.taps.v_taps,
1353				spl_scratch->scl_data.recip_ratios.vert);
1354		/* FP1.5.10; (2.0) Ring reducer gain for 4 or 6-tap mode [H_REDUCER_GAIN4] */
1355		dscl_prog_data->easf_v_ringest_eventap_reduceg1 =
1356			spl_get_reducer_gain4(spl_scratch->scl_data.taps.v_taps,
1357				spl_scratch->scl_data.recip_ratios.vert);
1358		/* FP1.5.10; (2.5) Ring reducer gain for 6-tap mode [V_REDUCER_GAIN6] */
1359		dscl_prog_data->easf_v_ringest_eventap_reduceg2 =
1360			spl_get_reducer_gain6(spl_scratch->scl_data.taps.v_taps,
1361				spl_scratch->scl_data.recip_ratios.vert);
1362		/* FP1.5.10; (-0.135742) Ring gain for 6-tap set to -139/1024 */
1363		dscl_prog_data->easf_v_ringest_eventap_gain1 =
1364			spl_get_gainRing4(spl_scratch->scl_data.taps.v_taps,
1365				spl_scratch->scl_data.recip_ratios.vert);
1366		/* FP1.5.10; (-0.024414) Ring gain for 6-tap set to -25/1024 */
1367		dscl_prog_data->easf_v_ringest_eventap_gain2 =
1368			spl_get_gainRing6(spl_scratch->scl_data.taps.v_taps,
1369				spl_scratch->scl_data.recip_ratios.vert);
1370		dscl_prog_data->easf_v_bf_maxa = 63; //Vertical Max BF value A in U0.6 format.Selected if V_FCNTL == 0
1371		dscl_prog_data->easf_v_bf_maxb = 63; //Vertical Max BF value A in U0.6 format.Selected if V_FCNTL == 1
1372		dscl_prog_data->easf_v_bf_mina = 0;	//Vertical Min BF value A in U0.6 format.Selected if V_FCNTL == 0
1373		dscl_prog_data->easf_v_bf_minb = 0;	//Vertical Min BF value A in U0.6 format.Selected if V_FCNTL == 1
1374		if (lls_pref == LLS_PREF_YES)	{
1375			dscl_prog_data->easf_v_bf2_flat1_gain = 4;	// U1.3, BF2 Flat1 Gain control
1376			dscl_prog_data->easf_v_bf2_flat2_gain = 8;	// U4.0, BF2 Flat2 Gain control
1377			dscl_prog_data->easf_v_bf2_roc_gain = 4;	// U2.2, Rate Of Change control
1378
1379			dscl_prog_data->easf_v_bf1_pwl_in_seg0 = 0x600;	// S0.10, BF1 PWL Segment 0 = -512
1380			dscl_prog_data->easf_v_bf1_pwl_base_seg0 = 0;	// U0.6, BF1 Base PWL Segment 0
1381			dscl_prog_data->easf_v_bf1_pwl_slope_seg0 = 3;	// S7.3, BF1 Slope PWL Segment 0
1382			dscl_prog_data->easf_v_bf1_pwl_in_seg1 = 0x7EC;	// S0.10, BF1 PWL Segment 1 = -20
1383			dscl_prog_data->easf_v_bf1_pwl_base_seg1 = 12;	// U0.6, BF1 Base PWL Segment 1
1384			dscl_prog_data->easf_v_bf1_pwl_slope_seg1 = 326;	// S7.3, BF1 Slope PWL Segment 1
1385			dscl_prog_data->easf_v_bf1_pwl_in_seg2 = 0;	// S0.10, BF1 PWL Segment 2
1386			dscl_prog_data->easf_v_bf1_pwl_base_seg2 = 63;	// U0.6, BF1 Base PWL Segment 2
1387			dscl_prog_data->easf_v_bf1_pwl_slope_seg2 = 0;	// S7.3, BF1 Slope PWL Segment 2
1388			dscl_prog_data->easf_v_bf1_pwl_in_seg3 = 16;	// S0.10, BF1 PWL Segment 3
1389			dscl_prog_data->easf_v_bf1_pwl_base_seg3 = 63;	// U0.6, BF1 Base PWL Segment 3
1390			dscl_prog_data->easf_v_bf1_pwl_slope_seg3 = 0x7C8;	// S7.3, BF1 Slope PWL Segment 3 = -56
1391			dscl_prog_data->easf_v_bf1_pwl_in_seg4 = 32;	// S0.10, BF1 PWL Segment 4
1392			dscl_prog_data->easf_v_bf1_pwl_base_seg4 = 56;	// U0.6, BF1 Base PWL Segment 4
1393			dscl_prog_data->easf_v_bf1_pwl_slope_seg4 = 0x7D0;	// S7.3, BF1 Slope PWL Segment 4 = -48
1394			dscl_prog_data->easf_v_bf1_pwl_in_seg5 = 48;	// S0.10, BF1 PWL Segment 5
1395			dscl_prog_data->easf_v_bf1_pwl_base_seg5 = 50;	// U0.6, BF1 Base PWL Segment 5
1396			dscl_prog_data->easf_v_bf1_pwl_slope_seg5 = 0x710;	// S7.3, BF1 Slope PWL Segment 5 = -240
1397			dscl_prog_data->easf_v_bf1_pwl_in_seg6 = 64;	// S0.10, BF1 PWL Segment 6
1398			dscl_prog_data->easf_v_bf1_pwl_base_seg6 = 20;	// U0.6, BF1 Base PWL Segment 6
1399			dscl_prog_data->easf_v_bf1_pwl_slope_seg6 = 0x760;	// S7.3, BF1 Slope PWL Segment 6 = -160
1400			dscl_prog_data->easf_v_bf1_pwl_in_seg7 = 80;	// S0.10, BF1 PWL Segment 7
1401			dscl_prog_data->easf_v_bf1_pwl_base_seg7 = 0;	// U0.6, BF1 Base PWL Segment 7
1402
1403			dscl_prog_data->easf_v_bf3_pwl_in_set0 = 0x000;	// FP0.6.6, BF3 Input value PWL Segment 0
1404			dscl_prog_data->easf_v_bf3_pwl_base_set0 = 63;	// S0.6, BF3 Base PWL Segment 0
1405			dscl_prog_data->easf_v_bf3_pwl_slope_set0 = 0x12C5;	// FP1.6.6, BF3 Slope PWL Segment 0
1406			dscl_prog_data->easf_v_bf3_pwl_in_set1 =
1407				0x0B37; // FP0.6.6, BF3 Input value PWL Segment 1 (0.0078125 * 125^3)
1408			dscl_prog_data->easf_v_bf3_pwl_base_set1 = 62;	// S0.6, BF3 Base PWL Segment 1
1409			dscl_prog_data->easf_v_bf3_pwl_slope_set1 =
1410				0x13B8;	// FP1.6.6, BF3 Slope PWL Segment 1
1411			dscl_prog_data->easf_v_bf3_pwl_in_set2 =
1412				0x0BB7;	// FP0.6.6, BF3 Input value PWL Segment 2 (0.03125 * 125^3)
1413			dscl_prog_data->easf_v_bf3_pwl_base_set2 = 20;	// S0.6, BF3 Base PWL Segment 2
1414			dscl_prog_data->easf_v_bf3_pwl_slope_set2 =
1415				0x1356;	// FP1.6.6, BF3 Slope PWL Segment 2
1416			dscl_prog_data->easf_v_bf3_pwl_in_set3 =
1417				0x0BF7;	// FP0.6.6, BF3 Input value PWL Segment 3 (0.0625 * 125^3)
1418			dscl_prog_data->easf_v_bf3_pwl_base_set3 = 0;	// S0.6, BF3 Base PWL Segment 3
1419			dscl_prog_data->easf_v_bf3_pwl_slope_set3 =
1420				0x136B;	// FP1.6.6, BF3 Slope PWL Segment 3
1421			dscl_prog_data->easf_v_bf3_pwl_in_set4 =
1422				0x0C37;	// FP0.6.6, BF3 Input value PWL Segment 4 (0.125 * 125^3)
1423			dscl_prog_data->easf_v_bf3_pwl_base_set4 = 0x4E;	// S0.6, BF3 Base PWL Segment 4 = -50
1424			dscl_prog_data->easf_v_bf3_pwl_slope_set4 =
1425				0x1200;	// FP1.6.6, BF3 Slope PWL Segment 4
1426			dscl_prog_data->easf_v_bf3_pwl_in_set5 =
1427				0x0CF7;	// FP0.6.6, BF3 Input value PWL Segment 5 (1.0 * 125^3)
1428			dscl_prog_data->easf_v_bf3_pwl_base_set5 = 0x41;	// S0.6, BF3 Base PWL Segment 5 = -63
1429		}	else	{
1430			dscl_prog_data->easf_v_bf2_flat1_gain = 13;	// U1.3, BF2 Flat1 Gain control
1431			dscl_prog_data->easf_v_bf2_flat2_gain = 15;	// U4.0, BF2 Flat2 Gain control
1432			dscl_prog_data->easf_v_bf2_roc_gain = 14;	// U2.2, Rate Of Change control
1433
1434			dscl_prog_data->easf_v_bf1_pwl_in_seg0 = 0x440;	// S0.10, BF1 PWL Segment 0 = -960
1435			dscl_prog_data->easf_v_bf1_pwl_base_seg0 = 0;	// U0.6, BF1 Base PWL Segment 0
1436			dscl_prog_data->easf_v_bf1_pwl_slope_seg0 = 2;	// S7.3, BF1 Slope PWL Segment 0
1437			dscl_prog_data->easf_v_bf1_pwl_in_seg1 = 0x7C4;	// S0.10, BF1 PWL Segment 1 = -60
1438			dscl_prog_data->easf_v_bf1_pwl_base_seg1 = 12;	// U0.6, BF1 Base PWL Segment 1
1439			dscl_prog_data->easf_v_bf1_pwl_slope_seg1 = 109;	// S7.3, BF1 Slope PWL Segment 1
1440			dscl_prog_data->easf_v_bf1_pwl_in_seg2 = 0;	// S0.10, BF1 PWL Segment 2
1441			dscl_prog_data->easf_v_bf1_pwl_base_seg2 = 63;	// U0.6, BF1 Base PWL Segment 2
1442			dscl_prog_data->easf_v_bf1_pwl_slope_seg2 = 0;	// S7.3, BF1 Slope PWL Segment 2
1443			dscl_prog_data->easf_v_bf1_pwl_in_seg3 = 48;	// S0.10, BF1 PWL Segment 3
1444			dscl_prog_data->easf_v_bf1_pwl_base_seg3 = 63;	// U0.6, BF1 Base PWL Segment 3
1445			dscl_prog_data->easf_v_bf1_pwl_slope_seg3 = 0x7ED;	// S7.3, BF1 Slope PWL Segment 3 = -19
1446			dscl_prog_data->easf_v_bf1_pwl_in_seg4 = 96;	// S0.10, BF1 PWL Segment 4
1447			dscl_prog_data->easf_v_bf1_pwl_base_seg4 = 56;	// U0.6, BF1 Base PWL Segment 4
1448			dscl_prog_data->easf_v_bf1_pwl_slope_seg4 = 0x7F0;	// S7.3, BF1 Slope PWL Segment 4 = -16
1449			dscl_prog_data->easf_v_bf1_pwl_in_seg5 = 144;	// S0.10, BF1 PWL Segment 5
1450			dscl_prog_data->easf_v_bf1_pwl_base_seg5 = 50;	// U0.6, BF1 Base PWL Segment 5
1451			dscl_prog_data->easf_v_bf1_pwl_slope_seg5 = 0x7B0;	// S7.3, BF1 Slope PWL Segment 5 = -80
1452			dscl_prog_data->easf_v_bf1_pwl_in_seg6 = 192;	// S0.10, BF1 PWL Segment 6
1453			dscl_prog_data->easf_v_bf1_pwl_base_seg6 = 20;	// U0.6, BF1 Base PWL Segment 6
1454			dscl_prog_data->easf_v_bf1_pwl_slope_seg6 = 0x7CB;	// S7.3, BF1 Slope PWL Segment 6 = -53
1455			dscl_prog_data->easf_v_bf1_pwl_in_seg7 = 240;	// S0.10, BF1 PWL Segment 7
1456			dscl_prog_data->easf_v_bf1_pwl_base_seg7 = 0;	// U0.6, BF1 Base PWL Segment 7
1457
1458			dscl_prog_data->easf_v_bf3_pwl_in_set0 = 0x000;	// FP0.6.6, BF3 Input value PWL Segment 0
1459			dscl_prog_data->easf_v_bf3_pwl_base_set0 = 63;	// S0.6, BF3 Base PWL Segment 0
1460			dscl_prog_data->easf_v_bf3_pwl_slope_set0 = 0x0000;	// FP1.6.6, BF3 Slope PWL Segment 0
1461			dscl_prog_data->easf_v_bf3_pwl_in_set1 =
1462				0x06C0; // FP0.6.6, BF3 Input value PWL Segment 1 (0.0625)
1463			dscl_prog_data->easf_v_bf3_pwl_base_set1 = 63;	// S0.6, BF3 Base PWL Segment 1
1464			dscl_prog_data->easf_v_bf3_pwl_slope_set1 = 0x1896;	// FP1.6.6, BF3 Slope PWL Segment 1
1465			dscl_prog_data->easf_v_bf3_pwl_in_set2 =
1466				0x0700;	// FP0.6.6, BF3 Input value PWL Segment 2 (0.125)
1467			dscl_prog_data->easf_v_bf3_pwl_base_set2 = 20;	// S0.6, BF3 Base PWL Segment 2
1468			dscl_prog_data->easf_v_bf3_pwl_slope_set2 = 0x1810;	// FP1.6.6, BF3 Slope PWL Segment 2
1469			dscl_prog_data->easf_v_bf3_pwl_in_set3 =
1470				0x0740;	// FP0.6.6, BF3 Input value PWL Segment 3 (0.25)
1471			dscl_prog_data->easf_v_bf3_pwl_base_set3 = 0;	// S0.6, BF3 Base PWL Segment 3
1472			dscl_prog_data->easf_v_bf3_pwl_slope_set3 =
1473				0x1878;	// FP1.6.6, BF3 Slope PWL Segment 3
1474			dscl_prog_data->easf_v_bf3_pwl_in_set4 =
1475				0x0761;	// FP0.6.6, BF3 Input value PWL Segment 4 (0.375)
1476			dscl_prog_data->easf_v_bf3_pwl_base_set4 = 0x44;	// S0.6, BF3 Base PWL Segment 4 = -60
1477			dscl_prog_data->easf_v_bf3_pwl_slope_set4 = 0x1760;	// FP1.6.6, BF3 Slope PWL Segment 4
1478			dscl_prog_data->easf_v_bf3_pwl_in_set5 =
1479				0x0780;	// FP0.6.6, BF3 Input value PWL Segment 5 (0.5)
1480			dscl_prog_data->easf_v_bf3_pwl_base_set5 = 0x41;	// S0.6, BF3 Base PWL Segment 5 = -63
1481		}
1482	} else
1483		dscl_prog_data->easf_v_en = false;
1484
1485	if (enable_easf_h) {
1486		dscl_prog_data->easf_h_en = true;
1487		dscl_prog_data->easf_h_ring = 0;
1488		dscl_prog_data->easf_h_sharp_factor = 1;
1489		dscl_prog_data->easf_h_bf1_en =
1490			1;	// 1-bit, BF1 calculation enable, 0=disable, 1=enable
1491		dscl_prog_data->easf_h_bf2_mode =
1492			0xF;	// 4-bit, BF2 calculation mode
1493		/* 2-bit, BF3 chroma mode correction calculation mode */
1494		dscl_prog_data->easf_h_bf3_mode = spl_get_h_bf3_mode(
1495			spl_scratch->scl_data.recip_ratios.horz);
1496		/* FP1.5.10; (2.0) Ring reducer gain for 4 or 6-tap mode [H_REDUCER_GAIN4] */
1497		dscl_prog_data->easf_h_ringest_eventap_reduceg1 =
1498			spl_get_reducer_gain4(spl_scratch->scl_data.taps.h_taps,
1499				spl_scratch->scl_data.recip_ratios.horz);
1500		/* FP1.5.10; (2.5) Ring reducer gain for 6-tap mode [V_REDUCER_GAIN6] */
1501		dscl_prog_data->easf_h_ringest_eventap_reduceg2 =
1502			spl_get_reducer_gain6(spl_scratch->scl_data.taps.h_taps,
1503				spl_scratch->scl_data.recip_ratios.horz);
1504		/* FP1.5.10; (-0.135742) Ring gain for 6-tap set to -139/1024 */
1505		dscl_prog_data->easf_h_ringest_eventap_gain1 =
1506			spl_get_gainRing4(spl_scratch->scl_data.taps.h_taps,
1507				spl_scratch->scl_data.recip_ratios.horz);
1508		/* FP1.5.10; (-0.024414) Ring gain for 6-tap set to -25/1024 */
1509		dscl_prog_data->easf_h_ringest_eventap_gain2 =
1510			spl_get_gainRing6(spl_scratch->scl_data.taps.h_taps,
1511				spl_scratch->scl_data.recip_ratios.horz);
1512		dscl_prog_data->easf_h_bf_maxa = 63; //Horz Max BF value A in U0.6 format.Selected if H_FCNTL==0
1513		dscl_prog_data->easf_h_bf_maxb = 63; //Horz Max BF value B in U0.6 format.Selected if H_FCNTL==1
1514		dscl_prog_data->easf_h_bf_mina = 0;	//Horz Min BF value B in U0.6 format.Selected if H_FCNTL==0
1515		dscl_prog_data->easf_h_bf_minb = 0;	//Horz Min BF value B in U0.6 format.Selected if H_FCNTL==1
1516		if (lls_pref == LLS_PREF_YES)	{
1517			dscl_prog_data->easf_h_bf2_flat1_gain = 4;	// U1.3, BF2 Flat1 Gain control
1518			dscl_prog_data->easf_h_bf2_flat2_gain = 8;	// U4.0, BF2 Flat2 Gain control
1519			dscl_prog_data->easf_h_bf2_roc_gain = 4;	// U2.2, Rate Of Change control
1520
1521			dscl_prog_data->easf_h_bf1_pwl_in_seg0 = 0x600;	// S0.10, BF1 PWL Segment 0 = -512
1522			dscl_prog_data->easf_h_bf1_pwl_base_seg0 = 0;	// U0.6, BF1 Base PWL Segment 0
1523			dscl_prog_data->easf_h_bf1_pwl_slope_seg0 = 3;	// S7.3, BF1 Slope PWL Segment 0
1524			dscl_prog_data->easf_h_bf1_pwl_in_seg1 = 0x7EC;	// S0.10, BF1 PWL Segment 1 = -20
1525			dscl_prog_data->easf_h_bf1_pwl_base_seg1 = 12;	// U0.6, BF1 Base PWL Segment 1
1526			dscl_prog_data->easf_h_bf1_pwl_slope_seg1 = 326;	// S7.3, BF1 Slope PWL Segment 1
1527			dscl_prog_data->easf_h_bf1_pwl_in_seg2 = 0;	// S0.10, BF1 PWL Segment 2
1528			dscl_prog_data->easf_h_bf1_pwl_base_seg2 = 63;	// U0.6, BF1 Base PWL Segment 2
1529			dscl_prog_data->easf_h_bf1_pwl_slope_seg2 = 0;	// S7.3, BF1 Slope PWL Segment 2
1530			dscl_prog_data->easf_h_bf1_pwl_in_seg3 = 16;	// S0.10, BF1 PWL Segment 3
1531			dscl_prog_data->easf_h_bf1_pwl_base_seg3 = 63;	// U0.6, BF1 Base PWL Segment 3
1532			dscl_prog_data->easf_h_bf1_pwl_slope_seg3 = 0x7C8;	// S7.3, BF1 Slope PWL Segment 3 = -56
1533			dscl_prog_data->easf_h_bf1_pwl_in_seg4 = 32;	// S0.10, BF1 PWL Segment 4
1534			dscl_prog_data->easf_h_bf1_pwl_base_seg4 = 56;	// U0.6, BF1 Base PWL Segment 4
1535			dscl_prog_data->easf_h_bf1_pwl_slope_seg4 = 0x7D0;	// S7.3, BF1 Slope PWL Segment 4 = -48
1536			dscl_prog_data->easf_h_bf1_pwl_in_seg5 = 48;	// S0.10, BF1 PWL Segment 5
1537			dscl_prog_data->easf_h_bf1_pwl_base_seg5 = 50;	// U0.6, BF1 Base PWL Segment 5
1538			dscl_prog_data->easf_h_bf1_pwl_slope_seg5 = 0x710;	// S7.3, BF1 Slope PWL Segment 5 = -240
1539			dscl_prog_data->easf_h_bf1_pwl_in_seg6 = 64;	// S0.10, BF1 PWL Segment 6
1540			dscl_prog_data->easf_h_bf1_pwl_base_seg6 = 20;	// U0.6, BF1 Base PWL Segment 6
1541			dscl_prog_data->easf_h_bf1_pwl_slope_seg6 = 0x760;	// S7.3, BF1 Slope PWL Segment 6 = -160
1542			dscl_prog_data->easf_h_bf1_pwl_in_seg7 = 80;	// S0.10, BF1 PWL Segment 7
1543			dscl_prog_data->easf_h_bf1_pwl_base_seg7 = 0;	// U0.6, BF1 Base PWL Segment 7
1544
1545			dscl_prog_data->easf_h_bf3_pwl_in_set0 = 0x000;	// FP0.6.6, BF3 Input value PWL Segment 0
1546			dscl_prog_data->easf_h_bf3_pwl_base_set0 = 63;	// S0.6, BF3 Base PWL Segment 0
1547			dscl_prog_data->easf_h_bf3_pwl_slope_set0 = 0x12C5;	// FP1.6.6, BF3 Slope PWL Segment 0
1548			dscl_prog_data->easf_h_bf3_pwl_in_set1 =
1549				0x0B37;	// FP0.6.6, BF3 Input value PWL Segment 1 (0.0078125 * 125^3)
1550			dscl_prog_data->easf_h_bf3_pwl_base_set1 = 62;	// S0.6, BF3 Base PWL Segment 1
1551			dscl_prog_data->easf_h_bf3_pwl_slope_set1 =	0x13B8;	// FP1.6.6, BF3 Slope PWL Segment 1
1552			dscl_prog_data->easf_h_bf3_pwl_in_set2 =
1553				0x0BB7;	// FP0.6.6, BF3 Input value PWL Segment 2 (0.03125 * 125^3)
1554			dscl_prog_data->easf_h_bf3_pwl_base_set2 = 20;	// S0.6, BF3 Base PWL Segment 2
1555			dscl_prog_data->easf_h_bf3_pwl_slope_set2 =	0x1356;	// FP1.6.6, BF3 Slope PWL Segment 2
1556			dscl_prog_data->easf_h_bf3_pwl_in_set3 =
1557				0x0BF7;	// FP0.6.6, BF3 Input value PWL Segment 3 (0.0625 * 125^3)
1558			dscl_prog_data->easf_h_bf3_pwl_base_set3 = 0;	// S0.6, BF3 Base PWL Segment 3
1559			dscl_prog_data->easf_h_bf3_pwl_slope_set3 =	0x136B;	// FP1.6.6, BF3 Slope PWL Segment 3
1560			dscl_prog_data->easf_h_bf3_pwl_in_set4 =
1561				0x0C37;	// FP0.6.6, BF3 Input value PWL Segment 4 (0.125 * 125^3)
1562			dscl_prog_data->easf_h_bf3_pwl_base_set4 = 0x4E;	// S0.6, BF3 Base PWL Segment 4 = -50
1563			dscl_prog_data->easf_h_bf3_pwl_slope_set4 = 0x1200;	// FP1.6.6, BF3 Slope PWL Segment 4
1564			dscl_prog_data->easf_h_bf3_pwl_in_set5 =
1565				0x0CF7;	// FP0.6.6, BF3 Input value PWL Segment 5 (1.0 * 125^3)
1566			dscl_prog_data->easf_h_bf3_pwl_base_set5 = 0x41;	// S0.6, BF3 Base PWL Segment 5 = -63
1567		} else {
1568			dscl_prog_data->easf_h_bf2_flat1_gain = 13;	// U1.3, BF2 Flat1 Gain control
1569			dscl_prog_data->easf_h_bf2_flat2_gain = 15;	// U4.0, BF2 Flat2 Gain control
1570			dscl_prog_data->easf_h_bf2_roc_gain = 14;	// U2.2, Rate Of Change control
1571
1572			dscl_prog_data->easf_h_bf1_pwl_in_seg0 = 0x440;	// S0.10, BF1 PWL Segment 0 = -960
1573			dscl_prog_data->easf_h_bf1_pwl_base_seg0 = 0;	// U0.6, BF1 Base PWL Segment 0
1574			dscl_prog_data->easf_h_bf1_pwl_slope_seg0 = 2;	// S7.3, BF1 Slope PWL Segment 0
1575			dscl_prog_data->easf_h_bf1_pwl_in_seg1 = 0x7C4;	// S0.10, BF1 PWL Segment 1 = -60
1576			dscl_prog_data->easf_h_bf1_pwl_base_seg1 = 12;	// U0.6, BF1 Base PWL Segment 1
1577			dscl_prog_data->easf_h_bf1_pwl_slope_seg1 = 109;	// S7.3, BF1 Slope PWL Segment 1
1578			dscl_prog_data->easf_h_bf1_pwl_in_seg2 = 0;	// S0.10, BF1 PWL Segment 2
1579			dscl_prog_data->easf_h_bf1_pwl_base_seg2 = 63;	// U0.6, BF1 Base PWL Segment 2
1580			dscl_prog_data->easf_h_bf1_pwl_slope_seg2 = 0;	// S7.3, BF1 Slope PWL Segment 2
1581			dscl_prog_data->easf_h_bf1_pwl_in_seg3 = 48;	// S0.10, BF1 PWL Segment 3
1582			dscl_prog_data->easf_h_bf1_pwl_base_seg3 = 63;	// U0.6, BF1 Base PWL Segment 3
1583			dscl_prog_data->easf_h_bf1_pwl_slope_seg3 = 0x7ED;	// S7.3, BF1 Slope PWL Segment 3 = -19
1584			dscl_prog_data->easf_h_bf1_pwl_in_seg4 = 96;	// S0.10, BF1 PWL Segment 4
1585			dscl_prog_data->easf_h_bf1_pwl_base_seg4 = 56;	// U0.6, BF1 Base PWL Segment 4
1586			dscl_prog_data->easf_h_bf1_pwl_slope_seg4 = 0x7F0;	// S7.3, BF1 Slope PWL Segment 4 = -16
1587			dscl_prog_data->easf_h_bf1_pwl_in_seg5 = 144;	// S0.10, BF1 PWL Segment 5
1588			dscl_prog_data->easf_h_bf1_pwl_base_seg5 = 50;	// U0.6, BF1 Base PWL Segment 5
1589			dscl_prog_data->easf_h_bf1_pwl_slope_seg5 = 0x7B0;	// S7.3, BF1 Slope PWL Segment 5 = -80
1590			dscl_prog_data->easf_h_bf1_pwl_in_seg6 = 192;	// S0.10, BF1 PWL Segment 6
1591			dscl_prog_data->easf_h_bf1_pwl_base_seg6 = 20;	// U0.6, BF1 Base PWL Segment 6
1592			dscl_prog_data->easf_h_bf1_pwl_slope_seg6 = 0x7CB;	// S7.3, BF1 Slope PWL Segment 6 = -53
1593			dscl_prog_data->easf_h_bf1_pwl_in_seg7 = 240;	// S0.10, BF1 PWL Segment 7
1594			dscl_prog_data->easf_h_bf1_pwl_base_seg7 = 0;	// U0.6, BF1 Base PWL Segment 7
1595
1596			dscl_prog_data->easf_h_bf3_pwl_in_set0 = 0x000;	// FP0.6.6, BF3 Input value PWL Segment 0
1597			dscl_prog_data->easf_h_bf3_pwl_base_set0 = 63;	// S0.6, BF3 Base PWL Segment 0
1598			dscl_prog_data->easf_h_bf3_pwl_slope_set0 = 0x0000;	// FP1.6.6, BF3 Slope PWL Segment 0
1599			dscl_prog_data->easf_h_bf3_pwl_in_set1 =
1600				0x06C0;	// FP0.6.6, BF3 Input value PWL Segment 1 (0.0625)
1601			dscl_prog_data->easf_h_bf3_pwl_base_set1 = 63;	// S0.6, BF3 Base PWL Segment 1
1602			dscl_prog_data->easf_h_bf3_pwl_slope_set1 = 0x1896;	// FP1.6.6, BF3 Slope PWL Segment 1
1603			dscl_prog_data->easf_h_bf3_pwl_in_set2 =
1604				0x0700;	// FP0.6.6, BF3 Input value PWL Segment 2 (0.125)
1605			dscl_prog_data->easf_h_bf3_pwl_base_set2 = 20;	// S0.6, BF3 Base PWL Segment 2
1606			dscl_prog_data->easf_h_bf3_pwl_slope_set2 = 0x1810;	// FP1.6.6, BF3 Slope PWL Segment 2
1607			dscl_prog_data->easf_h_bf3_pwl_in_set3 =
1608				0x0740;	// FP0.6.6, BF3 Input value PWL Segment 3 (0.25)
1609			dscl_prog_data->easf_h_bf3_pwl_base_set3 = 0;	// S0.6, BF3 Base PWL Segment 3
1610			dscl_prog_data->easf_h_bf3_pwl_slope_set3 = 0x1878;	// FP1.6.6, BF3 Slope PWL Segment 3
1611			dscl_prog_data->easf_h_bf3_pwl_in_set4 =
1612				0x0761;	// FP0.6.6, BF3 Input value PWL Segment 4 (0.375)
1613			dscl_prog_data->easf_h_bf3_pwl_base_set4 = 0x44;	// S0.6, BF3 Base PWL Segment 4 = -60
1614			dscl_prog_data->easf_h_bf3_pwl_slope_set4 = 0x1760;	// FP1.6.6, BF3 Slope PWL Segment 4
1615			dscl_prog_data->easf_h_bf3_pwl_in_set5 =
1616				0x0780;	// FP0.6.6, BF3 Input value PWL Segment 5 (0.5)
1617			dscl_prog_data->easf_h_bf3_pwl_base_set5 = 0x41;	// S0.6, BF3 Base PWL Segment 5 = -63
1618		} // if (lls_pref == LLS_PREF_YES)
1619	} else
1620		dscl_prog_data->easf_h_en = false;
1621
1622	if (lls_pref == LLS_PREF_YES)	{
1623		dscl_prog_data->easf_ltonl_en = 1;	// Linear input
1624		if ((setup == HDR_L) && (spl_is_rgb8(format))) {
1625			/* Calculate C0-C3 coefficients based on HDR multiplier */
1626			spl_calculate_c0_c3_hdr(dscl_prog_data, sdr_white_level_nits);
1627		} else { // HDR_L ( DWM ) and SDR_L
1628			dscl_prog_data->easf_matrix_c0 =
1629				0x4EF7;	// fp1.5.10, C0 coefficient (LN_rec709:  0.2126 * (2^14)/125 = 27.86590720)
1630			dscl_prog_data->easf_matrix_c1 =
1631				0x55DC;	// fp1.5.10, C1 coefficient (LN_rec709:  0.7152 * (2^14)/125 = 93.74269440)
1632			dscl_prog_data->easf_matrix_c2 =
1633				0x48BB;	// fp1.5.10, C2 coefficient (LN_rec709:  0.0722 * (2^14)/125 = 9.46339840)
1634			dscl_prog_data->easf_matrix_c3 =
1635				0x0;	// fp1.5.10, C3 coefficient
1636		}
1637	}	else	{
1638		dscl_prog_data->easf_ltonl_en = 0;	// Non-Linear input
1639		dscl_prog_data->easf_matrix_c0 =
1640			0x3434;	// fp1.5.10, C0 coefficient (LN_BT2020:  0.262695312500000)
1641		dscl_prog_data->easf_matrix_c1 =
1642			0x396D;	// fp1.5.10, C1 coefficient (LN_BT2020:  0.678222656250000)
1643		dscl_prog_data->easf_matrix_c2 =
1644			0x2B97;	// fp1.5.10, C2 coefficient (LN_BT2020:  0.059295654296875)
1645		dscl_prog_data->easf_matrix_c3 =
1646			0x0;	// fp1.5.10, C3 coefficient
1647	}
1648
1649	if (spl_is_subsampled_format(format)) { /* TODO: 0 = RGB, 1 = YUV */
1650		dscl_prog_data->easf_matrix_mode = 1;
1651		/*
1652		 * 2-bit, BF3 chroma mode correction calculation mode
1653		 * Needs to be disabled for YUV420 mode
1654		 * Override lookup value
1655		 */
1656		dscl_prog_data->easf_v_bf3_mode = 0;
1657		dscl_prog_data->easf_h_bf3_mode = 0;
1658	} else
1659		dscl_prog_data->easf_matrix_mode = 0;
1660
1661}
1662
1663/*Set isharp noise detection */
1664static void spl_set_isharp_noise_det_mode(struct dscl_prog_data *dscl_prog_data,
1665	const struct spl_scaler_data *data)
1666{
1667	// ISHARP_NOISEDET_MODE
1668	// 0: 3x5 as VxH
1669	// 1: 4x5 as VxH
1670	// 2:
1671	// 3: 5x5 as VxH
1672	if (data->taps.v_taps == 6)
1673		dscl_prog_data->isharp_noise_det.mode = 3;
1674	else if (data->taps.v_taps == 4)
1675		dscl_prog_data->isharp_noise_det.mode = 1;
1676	else if (data->taps.v_taps == 3)
1677		dscl_prog_data->isharp_noise_det.mode = 0;
1678};
1679/* Set Sharpener data */
1680static void spl_set_isharp_data(struct dscl_prog_data *dscl_prog_data,
1681		struct adaptive_sharpness adp_sharpness, bool enable_isharp,
1682		enum linear_light_scaling lls_pref, enum spl_pixel_format format,
1683		const struct spl_scaler_data *data, struct spl_fixed31_32 ratio,
1684		enum system_setup setup, enum scale_to_sharpness_policy scale_to_sharpness_policy)
1685{
1686	/* Turn off sharpener if not required */
1687	if (!enable_isharp) {
1688		dscl_prog_data->isharp_en = 0;
1689		return;
1690	}
1691
1692	spl_build_isharp_1dlut_from_reference_curve(ratio, setup, adp_sharpness,
1693		scale_to_sharpness_policy);
1694	memcpy(dscl_prog_data->isharp_delta, spl_get_pregen_filter_isharp_1D_lut(setup),
1695		sizeof(uint32_t) * ISHARP_LUT_TABLE_SIZE);
1696	dscl_prog_data->sharpness_level = adp_sharpness.sharpness_level;
1697
1698	dscl_prog_data->isharp_en = 1;	// ISHARP_EN
1699	// Set ISHARP_NOISEDET_MODE if htaps = 6-tap
1700	if (data->taps.h_taps == 6) {
1701		dscl_prog_data->isharp_noise_det.enable = 1;	/* ISHARP_NOISEDET_EN */
1702		spl_set_isharp_noise_det_mode(dscl_prog_data, data);	/* ISHARP_NOISEDET_MODE */
1703	} else
1704		dscl_prog_data->isharp_noise_det.enable = 0;	// ISHARP_NOISEDET_EN
1705	// Program noise detection threshold
1706	dscl_prog_data->isharp_noise_det.uthreshold = 24;	// ISHARP_NOISEDET_UTHRE
1707	dscl_prog_data->isharp_noise_det.dthreshold = 4;	// ISHARP_NOISEDET_DTHRE
1708	// Program noise detection gain
1709	dscl_prog_data->isharp_noise_det.pwl_start_in = 3;	// ISHARP_NOISEDET_PWL_START_IN
1710	dscl_prog_data->isharp_noise_det.pwl_end_in = 13;	// ISHARP_NOISEDET_PWL_END_IN
1711	dscl_prog_data->isharp_noise_det.pwl_slope = 1623;	// ISHARP_NOISEDET_PWL_SLOPE
1712
1713	if (lls_pref == LLS_PREF_NO) /* ISHARP_FMT_MODE */
1714		dscl_prog_data->isharp_fmt.mode = 1;
1715	else
1716		dscl_prog_data->isharp_fmt.mode = 0;
1717
1718	dscl_prog_data->isharp_fmt.norm = 0x3C00;	// ISHARP_FMT_NORM
1719	dscl_prog_data->isharp_lba.mode = 0;	// ISHARP_LBA_MODE
1720
1721	if (setup == SDR_L) {
1722		// ISHARP_LBA_PWL_SEG0: ISHARP Local Brightness Adjustment PWL Segment 0
1723		dscl_prog_data->isharp_lba.in_seg[0] = 0;	// ISHARP LBA PWL for Seg 0. INPUT value in U0.10 format
1724		dscl_prog_data->isharp_lba.base_seg[0] = 0;	// ISHARP LBA PWL for Seg 0. BASE value in U0.6 format
1725		dscl_prog_data->isharp_lba.slope_seg[0] = 62;	// ISHARP LBA for Seg 0. SLOPE value in S5.3 format
1726		// ISHARP_LBA_PWL_SEG1: ISHARP LBA PWL Segment 1
1727		dscl_prog_data->isharp_lba.in_seg[1] = 130;	// ISHARP LBA PWL for Seg 1. INPUT value in U0.10 format
1728		dscl_prog_data->isharp_lba.base_seg[1] = 63; // ISHARP LBA PWL for Seg 1. BASE value in U0.6 format
1729		dscl_prog_data->isharp_lba.slope_seg[1] = 0; // ISHARP LBA for Seg 1. SLOPE value in S5.3 format
1730		// ISHARP_LBA_PWL_SEG2: ISHARP LBA PWL Segment 2
1731		dscl_prog_data->isharp_lba.in_seg[2] = 450; // ISHARP LBA PWL for Seg 2. INPUT value in U0.10 format
1732		dscl_prog_data->isharp_lba.base_seg[2] = 63; // ISHARP LBA PWL for Seg 2. BASE value in U0.6 format
1733		dscl_prog_data->isharp_lba.slope_seg[2] = 0x18D; // ISHARP LBA for Seg 2. SLOPE value in S5.3 format = -115
1734		// ISHARP_LBA_PWL_SEG3: ISHARP LBA PWL Segment 3
1735		dscl_prog_data->isharp_lba.in_seg[3] = 520; // ISHARP LBA PWL for Seg 3.INPUT value in U0.10 format
1736		dscl_prog_data->isharp_lba.base_seg[3] = 0; // ISHARP LBA PWL for Seg 3. BASE value in U0.6 format
1737		dscl_prog_data->isharp_lba.slope_seg[3] = 0; // ISHARP LBA for Seg 3. SLOPE value in S5.3 format
1738		// ISHARP_LBA_PWL_SEG4: ISHARP LBA PWL Segment 4
1739		dscl_prog_data->isharp_lba.in_seg[4] = 520; // ISHARP LBA PWL for Seg 4.INPUT value in U0.10 format
1740		dscl_prog_data->isharp_lba.base_seg[4] = 0; // ISHARP LBA PWL for Seg 4. BASE value in U0.6 format
1741		dscl_prog_data->isharp_lba.slope_seg[4] = 0; // ISHARP LBA for Seg 4. SLOPE value in S5.3 format
1742		// ISHARP_LBA_PWL_SEG5: ISHARP LBA PWL Segment 5
1743		dscl_prog_data->isharp_lba.in_seg[5] = 520; // ISHARP LBA PWL for Seg 5.INPUT value in U0.10 format
1744		dscl_prog_data->isharp_lba.base_seg[5] = 0;	// ISHARP LBA PWL for Seg 5. BASE value in U0.6 format
1745	} else if (setup == HDR_L) {
1746		// ISHARP_LBA_PWL_SEG0: ISHARP Local Brightness Adjustment PWL Segment 0
1747		dscl_prog_data->isharp_lba.in_seg[0] = 0;	// ISHARP LBA PWL for Seg 0. INPUT value in U0.10 format
1748		dscl_prog_data->isharp_lba.base_seg[0] = 0;	// ISHARP LBA PWL for Seg 0. BASE value in U0.6 format
1749		dscl_prog_data->isharp_lba.slope_seg[0] = 32;	// ISHARP LBA for Seg 0. SLOPE value in S5.3 format
1750		// ISHARP_LBA_PWL_SEG1: ISHARP LBA PWL Segment 1
1751		dscl_prog_data->isharp_lba.in_seg[1] = 254;	// ISHARP LBA PWL for Seg 1. INPUT value in U0.10 format
1752		dscl_prog_data->isharp_lba.base_seg[1] = 63; // ISHARP LBA PWL for Seg 1. BASE value in U0.6 format
1753		dscl_prog_data->isharp_lba.slope_seg[1] = 0; // ISHARP LBA for Seg 1. SLOPE value in S5.3 format
1754		// ISHARP_LBA_PWL_SEG2: ISHARP LBA PWL Segment 2
1755		dscl_prog_data->isharp_lba.in_seg[2] = 559; // ISHARP LBA PWL for Seg 2. INPUT value in U0.10 format
1756		dscl_prog_data->isharp_lba.base_seg[2] = 63; // ISHARP LBA PWL for Seg 2. BASE value in U0.6 format
1757		dscl_prog_data->isharp_lba.slope_seg[2] = 0x10C; // ISHARP LBA for Seg 2. SLOPE value in S5.3 format = -244
1758		// ISHARP_LBA_PWL_SEG3: ISHARP LBA PWL Segment 3
1759		dscl_prog_data->isharp_lba.in_seg[3] = 592; // ISHARP LBA PWL for Seg 3.INPUT value in U0.10 format
1760		dscl_prog_data->isharp_lba.base_seg[3] = 0; // ISHARP LBA PWL for Seg 3. BASE value in U0.6 format
1761		dscl_prog_data->isharp_lba.slope_seg[3] = 0; // ISHARP LBA for Seg 3. SLOPE value in S5.3 format
1762		// ISHARP_LBA_PWL_SEG4: ISHARP LBA PWL Segment 4
1763		dscl_prog_data->isharp_lba.in_seg[4] = 1023; // ISHARP LBA PWL for Seg 4.INPUT value in U0.10 format
1764		dscl_prog_data->isharp_lba.base_seg[4] = 0; // ISHARP LBA PWL for Seg 4. BASE value in U0.6 format
1765		dscl_prog_data->isharp_lba.slope_seg[4] = 0; // ISHARP LBA for Seg 4. SLOPE value in S5.3 format
1766		// ISHARP_LBA_PWL_SEG5: ISHARP LBA PWL Segment 5
1767		dscl_prog_data->isharp_lba.in_seg[5] = 1023; // ISHARP LBA PWL for Seg 5.INPUT value in U0.10 format
1768		dscl_prog_data->isharp_lba.base_seg[5] = 0;	// ISHARP LBA PWL for Seg 5. BASE value in U0.6 format
1769	} else {
1770		// ISHARP_LBA_PWL_SEG0: ISHARP Local Brightness Adjustment PWL Segment 0
1771		dscl_prog_data->isharp_lba.in_seg[0] = 0;	// ISHARP LBA PWL for Seg 0. INPUT value in U0.10 format
1772		dscl_prog_data->isharp_lba.base_seg[0] = 0;	// ISHARP LBA PWL for Seg 0. BASE value in U0.6 format
1773		dscl_prog_data->isharp_lba.slope_seg[0] = 40;	// ISHARP LBA for Seg 0. SLOPE value in S5.3 format
1774		// ISHARP_LBA_PWL_SEG1: ISHARP LBA PWL Segment 1
1775		dscl_prog_data->isharp_lba.in_seg[1] = 204;	// ISHARP LBA PWL for Seg 1. INPUT value in U0.10 format
1776		dscl_prog_data->isharp_lba.base_seg[1] = 63; // ISHARP LBA PWL for Seg 1. BASE value in U0.6 format
1777		dscl_prog_data->isharp_lba.slope_seg[1] = 0; // ISHARP LBA for Seg 1. SLOPE value in S5.3 format
1778		// ISHARP_LBA_PWL_SEG2: ISHARP LBA PWL Segment 2
1779		dscl_prog_data->isharp_lba.in_seg[2] = 818; // ISHARP LBA PWL for Seg 2. INPUT value in U0.10 format
1780		dscl_prog_data->isharp_lba.base_seg[2] = 63; // ISHARP LBA PWL for Seg 2. BASE value in U0.6 format
1781		dscl_prog_data->isharp_lba.slope_seg[2] = 0x1D9; // ISHARP LBA for Seg 2. SLOPE value in S5.3 format = -39
1782		// ISHARP_LBA_PWL_SEG3: ISHARP LBA PWL Segment 3
1783		dscl_prog_data->isharp_lba.in_seg[3] = 1023; // ISHARP LBA PWL for Seg 3.INPUT value in U0.10 format
1784		dscl_prog_data->isharp_lba.base_seg[3] = 0; // ISHARP LBA PWL for Seg 3. BASE value in U0.6 format
1785		dscl_prog_data->isharp_lba.slope_seg[3] = 0; // ISHARP LBA for Seg 3. SLOPE value in S5.3 format
1786		// ISHARP_LBA_PWL_SEG4: ISHARP LBA PWL Segment 4
1787		dscl_prog_data->isharp_lba.in_seg[4] = 1023; // ISHARP LBA PWL for Seg 4.INPUT value in U0.10 format
1788		dscl_prog_data->isharp_lba.base_seg[4] = 0; // ISHARP LBA PWL for Seg 4. BASE value in U0.6 format
1789		dscl_prog_data->isharp_lba.slope_seg[4] = 0; // ISHARP LBA for Seg 4. SLOPE value in S5.3 format
1790		// ISHARP_LBA_PWL_SEG5: ISHARP LBA PWL Segment 5
1791		dscl_prog_data->isharp_lba.in_seg[5] = 1023; // ISHARP LBA PWL for Seg 5.INPUT value in U0.10 format
1792		dscl_prog_data->isharp_lba.base_seg[5] = 0;	// ISHARP LBA PWL for Seg 5. BASE value in U0.6 format
1793	}
1794
1795	// Program the nldelta soft clip values
1796	if (lls_pref == LLS_PREF_YES) {
1797		dscl_prog_data->isharp_nldelta_sclip.enable_p = 0;	/* ISHARP_NLDELTA_SCLIP_EN_P */
1798		dscl_prog_data->isharp_nldelta_sclip.pivot_p = 0;	/* ISHARP_NLDELTA_SCLIP_PIVOT_P */
1799		dscl_prog_data->isharp_nldelta_sclip.slope_p = 0;	/* ISHARP_NLDELTA_SCLIP_SLOPE_P */
1800		dscl_prog_data->isharp_nldelta_sclip.enable_n = 1;	/* ISHARP_NLDELTA_SCLIP_EN_N */
1801		dscl_prog_data->isharp_nldelta_sclip.pivot_n = 71;	/* ISHARP_NLDELTA_SCLIP_PIVOT_N */
1802		dscl_prog_data->isharp_nldelta_sclip.slope_n = 16;	/* ISHARP_NLDELTA_SCLIP_SLOPE_N */
1803	} else {
1804		dscl_prog_data->isharp_nldelta_sclip.enable_p = 1;	/* ISHARP_NLDELTA_SCLIP_EN_P */
1805		dscl_prog_data->isharp_nldelta_sclip.pivot_p = 70;	/* ISHARP_NLDELTA_SCLIP_PIVOT_P */
1806		dscl_prog_data->isharp_nldelta_sclip.slope_p = 24;	/* ISHARP_NLDELTA_SCLIP_SLOPE_P */
1807		dscl_prog_data->isharp_nldelta_sclip.enable_n = 1;	/* ISHARP_NLDELTA_SCLIP_EN_N */
1808		dscl_prog_data->isharp_nldelta_sclip.pivot_n = 70;	/* ISHARP_NLDELTA_SCLIP_PIVOT_N */
1809		dscl_prog_data->isharp_nldelta_sclip.slope_n = 24;	/* ISHARP_NLDELTA_SCLIP_SLOPE_N */
1810	}
1811
1812	// Set the values as per lookup table
1813	spl_set_blur_scale_data(dscl_prog_data, data);
1814}
1815
1816/* Calculate recout, scaling ratio, and viewport, then get optimal number of taps */
1817static bool spl_calculate_number_of_taps(struct spl_in *spl_in, struct spl_scratch *spl_scratch, struct spl_out *spl_out,
1818	bool *enable_easf_v, bool *enable_easf_h, bool *enable_isharp)
1819{
1820	bool res = false;
1821
1822	memset(spl_scratch, 0, sizeof(struct spl_scratch));
1823	spl_scratch->scl_data.h_active = spl_in->h_active;
1824	spl_scratch->scl_data.v_active = spl_in->v_active;
1825
1826	// All SPL calls
1827	/* recout calculation */
1828	/* depends on h_active */
1829	spl_calculate_recout(spl_in, spl_scratch, spl_out);
1830	/* depends on pixel format */
1831	spl_calculate_scaling_ratios(spl_in, spl_scratch, spl_out);
1832	/* Adjust recout for opp if needed */
1833	spl_opp_adjust_rect(&spl_scratch->scl_data.recout, &spl_in->basic_in.opp_recout_adjust);
1834	/* depends on scaling ratios and recout, does not calculate offset yet */
1835	spl_calculate_viewport_size(spl_in, spl_scratch);
1836
1837	res = spl_get_optimal_number_of_taps(
1838			  spl_in->basic_out.max_downscale_src_width, spl_in,
1839			  spl_scratch, &spl_in->scaling_quality, enable_easf_v,
1840			  enable_easf_h, enable_isharp);
1841	return res;
1842}
1843
1844/* Calculate scaler parameters */
1845bool SPL_NAMESPACE(spl_calculate_scaler_params(struct spl_in *spl_in, struct spl_out *spl_out))
1846{
1847	bool res = false;
1848	bool enable_easf_v = false;
1849	bool enable_easf_h = false;
1850	int vratio = 0;
1851	int hratio = 0;
1852	struct spl_scratch spl_scratch;
1853	struct spl_fixed31_32 isharp_scale_ratio;
1854	enum system_setup setup;
1855	bool enable_isharp = false;
1856	const struct spl_scaler_data *data = &spl_scratch.scl_data;
1857
1858	res = spl_calculate_number_of_taps(spl_in, &spl_scratch, spl_out,
1859		&enable_easf_v, &enable_easf_h, &enable_isharp);
1860
1861	/*
1862	 * Depends on recout, scaling ratios, h_active and taps
1863	 * May need to re-check lb size after this in some obscure scenario
1864	 */
1865	if (res)
1866		spl_calculate_inits_and_viewports(spl_in, &spl_scratch);
1867	// Handle 3d recout
1868	spl_handle_3d_recout(spl_in, &spl_scratch.scl_data.recout);
1869	// Clamp
1870	spl_clamp_viewport(&spl_scratch.scl_data.viewport, spl_in->min_viewport_size);
1871
1872	// Save all calculated parameters in dscl_prog_data structure to program hw registers
1873	spl_set_dscl_prog_data(spl_in, &spl_scratch, spl_out, enable_easf_v, enable_easf_h, enable_isharp);
1874
1875	if (!res)
1876		return res;
1877
1878	if (spl_in->lls_pref == LLS_PREF_YES) {
1879		if (spl_in->is_hdr_on)
1880			setup = HDR_L;
1881		else
1882			setup = SDR_L;
1883	} else {
1884		if (spl_in->is_hdr_on)
1885			setup = HDR_NL;
1886		else
1887			setup = SDR_NL;
1888	}
1889
1890	// Set EASF
1891	spl_set_easf_data(&spl_scratch, spl_out, enable_easf_v, enable_easf_h, spl_in->lls_pref,
1892		spl_in->basic_in.format, setup, spl_in->sdr_white_level_nits);
1893
1894	// Set iSHARP
1895	vratio = spl_fixpt_ceil(spl_scratch.scl_data.ratios.vert);
1896	hratio = spl_fixpt_ceil(spl_scratch.scl_data.ratios.horz);
1897	if (vratio <= hratio)
1898		isharp_scale_ratio = spl_scratch.scl_data.recip_ratios.vert;
1899	else
1900		isharp_scale_ratio = spl_scratch.scl_data.recip_ratios.horz;
1901
1902	spl_set_isharp_data(spl_out->dscl_prog_data, spl_in->adaptive_sharpness, enable_isharp,
1903		spl_in->lls_pref, spl_in->basic_in.format, data, isharp_scale_ratio, setup,
1904		spl_in->debug.scale_to_sharpness_policy);
1905
1906	return res;
1907}
1908
1909/* External interface to get number of taps only */
1910bool SPL_NAMESPACE(spl_get_number_of_taps(struct spl_in *spl_in, struct spl_out *spl_out))
1911{
1912	bool res = false;
1913	bool enable_easf_v = false;
1914	bool enable_easf_h = false;
1915	bool enable_isharp = false;
1916	struct spl_scratch spl_scratch;
1917	struct dscl_prog_data *dscl_prog_data = spl_out->dscl_prog_data;
1918	const struct spl_scaler_data *data = &spl_scratch.scl_data;
1919
1920	res = spl_calculate_number_of_taps(spl_in, &spl_scratch, spl_out,
1921		&enable_easf_v, &enable_easf_h, &enable_isharp);
1922	spl_set_taps_data(dscl_prog_data, data);
1923	return res;
1924}
1925
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