1f208b26eSSteve Longerbeam // SPDX-License-Identifier: GPL-2.0+
2f208b26eSSteve Longerbeam /*
3f208b26eSSteve Longerbeam * Copyright (C) 2019 Mentor Graphics Inc.
4f208b26eSSteve Longerbeam */
5f208b26eSSteve Longerbeam
6f208b26eSSteve Longerbeam #include <linux/types.h>
7f208b26eSSteve Longerbeam #include <linux/init.h>
8f208b26eSSteve Longerbeam #include <linux/errno.h>
9f208b26eSSteve Longerbeam #include <linux/err.h>
10f208b26eSSteve Longerbeam #include <linux/sizes.h>
11f208b26eSSteve Longerbeam #include "ipu-prv.h"
12f208b26eSSteve Longerbeam
13e3e4820dSSteve Longerbeam #define QUANT_MAP(q) \
14e3e4820dSSteve Longerbeam ((q) == V4L2_QUANTIZATION_FULL_RANGE || \
15e3e4820dSSteve Longerbeam (q) == V4L2_QUANTIZATION_DEFAULT ? 0 : 1)
16e3e4820dSSteve Longerbeam
17f208b26eSSteve Longerbeam /* identity matrix */
18f208b26eSSteve Longerbeam static const struct ipu_ic_csc_params identity = {
19f208b26eSSteve Longerbeam .coeff = {
20f208b26eSSteve Longerbeam { 128, 0, 0, },
21f208b26eSSteve Longerbeam { 0, 128, 0, },
22f208b26eSSteve Longerbeam { 0, 0, 128, },
23f208b26eSSteve Longerbeam },
24f208b26eSSteve Longerbeam .offset = { 0, 0, 0, },
25f208b26eSSteve Longerbeam .scale = 2,
26f208b26eSSteve Longerbeam };
27f208b26eSSteve Longerbeam
28e3e4820dSSteve Longerbeam /*
29e3e4820dSSteve Longerbeam * RGB full-range to RGB limited-range
30e3e4820dSSteve Longerbeam *
31e3e4820dSSteve Longerbeam * R_lim = 0.8588 * R_full + 16
32e3e4820dSSteve Longerbeam * G_lim = 0.8588 * G_full + 16
33e3e4820dSSteve Longerbeam * B_lim = 0.8588 * B_full + 16
34e3e4820dSSteve Longerbeam */
35e3e4820dSSteve Longerbeam static const struct ipu_ic_csc_params rgbf2rgbl = {
36e3e4820dSSteve Longerbeam .coeff = {
37e3e4820dSSteve Longerbeam { 220, 0, 0, },
38e3e4820dSSteve Longerbeam { 0, 220, 0, },
39e3e4820dSSteve Longerbeam { 0, 0, 220, },
40e3e4820dSSteve Longerbeam },
41e3e4820dSSteve Longerbeam .offset = { 64, 64, 64, },
42e3e4820dSSteve Longerbeam .scale = 1,
43e3e4820dSSteve Longerbeam };
44e3e4820dSSteve Longerbeam
45e3e4820dSSteve Longerbeam /*
46e3e4820dSSteve Longerbeam * RGB limited-range to RGB full-range
47e3e4820dSSteve Longerbeam *
48e3e4820dSSteve Longerbeam * R_full = 1.1644 * (R_lim - 16)
49e3e4820dSSteve Longerbeam * G_full = 1.1644 * (G_lim - 16)
50e3e4820dSSteve Longerbeam * B_full = 1.1644 * (B_lim - 16)
51e3e4820dSSteve Longerbeam */
52e3e4820dSSteve Longerbeam static const struct ipu_ic_csc_params rgbl2rgbf = {
53e3e4820dSSteve Longerbeam .coeff = {
54e3e4820dSSteve Longerbeam { 149, 0, 0, },
55e3e4820dSSteve Longerbeam { 0, 149, 0, },
56e3e4820dSSteve Longerbeam { 0, 0, 149, },
57e3e4820dSSteve Longerbeam },
58e3e4820dSSteve Longerbeam .offset = { -37, -37, -37, },
59e3e4820dSSteve Longerbeam .scale = 2,
60e3e4820dSSteve Longerbeam };
61e3e4820dSSteve Longerbeam
62e3e4820dSSteve Longerbeam /*
63e3e4820dSSteve Longerbeam * YUV full-range to YUV limited-range
64e3e4820dSSteve Longerbeam *
65e3e4820dSSteve Longerbeam * Y_lim = 0.8588 * Y_full + 16
66e3e4820dSSteve Longerbeam * Cb_lim = 0.8784 * (Cb_full - 128) + 128
67e3e4820dSSteve Longerbeam * Cr_lim = 0.8784 * (Cr_full - 128) + 128
68e3e4820dSSteve Longerbeam */
69e3e4820dSSteve Longerbeam static const struct ipu_ic_csc_params yuvf2yuvl = {
70e3e4820dSSteve Longerbeam .coeff = {
71e3e4820dSSteve Longerbeam { 220, 0, 0, },
72e3e4820dSSteve Longerbeam { 0, 225, 0, },
73e3e4820dSSteve Longerbeam { 0, 0, 225, },
74e3e4820dSSteve Longerbeam },
75e3e4820dSSteve Longerbeam .offset = { 64, 62, 62, },
76e3e4820dSSteve Longerbeam .scale = 1,
77e3e4820dSSteve Longerbeam .sat = true,
78e3e4820dSSteve Longerbeam };
79e3e4820dSSteve Longerbeam
80e3e4820dSSteve Longerbeam /*
81e3e4820dSSteve Longerbeam * YUV limited-range to YUV full-range
82e3e4820dSSteve Longerbeam *
83e3e4820dSSteve Longerbeam * Y_full = 1.1644 * (Y_lim - 16)
84e3e4820dSSteve Longerbeam * Cb_full = 1.1384 * (Cb_lim - 128) + 128
85e3e4820dSSteve Longerbeam * Cr_full = 1.1384 * (Cr_lim - 128) + 128
86e3e4820dSSteve Longerbeam */
87e3e4820dSSteve Longerbeam static const struct ipu_ic_csc_params yuvl2yuvf = {
88e3e4820dSSteve Longerbeam .coeff = {
89e3e4820dSSteve Longerbeam { 149, 0, 0, },
90e3e4820dSSteve Longerbeam { 0, 146, 0, },
91e3e4820dSSteve Longerbeam { 0, 0, 146, },
92e3e4820dSSteve Longerbeam },
93e3e4820dSSteve Longerbeam .offset = { -37, -35, -35, },
94e3e4820dSSteve Longerbeam .scale = 2,
95e3e4820dSSteve Longerbeam };
96e3e4820dSSteve Longerbeam
97f208b26eSSteve Longerbeam static const struct ipu_ic_csc_params *rgb2rgb[] = {
98f208b26eSSteve Longerbeam &identity,
99e3e4820dSSteve Longerbeam &rgbf2rgbl,
100e3e4820dSSteve Longerbeam &rgbl2rgbf,
101e3e4820dSSteve Longerbeam &identity,
102f208b26eSSteve Longerbeam };
103f208b26eSSteve Longerbeam
104f208b26eSSteve Longerbeam static const struct ipu_ic_csc_params *yuv2yuv[] = {
105f208b26eSSteve Longerbeam &identity,
106e3e4820dSSteve Longerbeam &yuvf2yuvl,
107e3e4820dSSteve Longerbeam &yuvl2yuvf,
108e3e4820dSSteve Longerbeam &identity,
109f208b26eSSteve Longerbeam };
110f208b26eSSteve Longerbeam
111f208b26eSSteve Longerbeam /*
112f208b26eSSteve Longerbeam * BT.601 RGB full-range to YUV full-range
113f208b26eSSteve Longerbeam *
114f208b26eSSteve Longerbeam * Y = .2990 * R + .5870 * G + .1140 * B
115f208b26eSSteve Longerbeam * U = -.1687 * R - .3313 * G + .5000 * B + 128
116f208b26eSSteve Longerbeam * V = .5000 * R - .4187 * G - .0813 * B + 128
117f208b26eSSteve Longerbeam */
118f208b26eSSteve Longerbeam static const struct ipu_ic_csc_params rgbf2yuvf_601 = {
119f208b26eSSteve Longerbeam .coeff = {
120f208b26eSSteve Longerbeam { 77, 150, 29, },
121f208b26eSSteve Longerbeam { -43, -85, 128, },
122f208b26eSSteve Longerbeam { 128, -107, -21, },
123f208b26eSSteve Longerbeam },
124f208b26eSSteve Longerbeam .offset = { 0, 512, 512, },
125f208b26eSSteve Longerbeam .scale = 1,
126f208b26eSSteve Longerbeam };
127f208b26eSSteve Longerbeam
128e3e4820dSSteve Longerbeam /* BT.601 RGB full-range to YUV limited-range */
129e3e4820dSSteve Longerbeam static const struct ipu_ic_csc_params rgbf2yuvl_601 = {
130e3e4820dSSteve Longerbeam .coeff = {
131e3e4820dSSteve Longerbeam { 66, 129, 25, },
132e3e4820dSSteve Longerbeam { -38, -74, 112, },
133e3e4820dSSteve Longerbeam { 112, -94, -18, },
134e3e4820dSSteve Longerbeam },
135e3e4820dSSteve Longerbeam .offset = { 64, 512, 512, },
136e3e4820dSSteve Longerbeam .scale = 1,
137e3e4820dSSteve Longerbeam .sat = true,
138e3e4820dSSteve Longerbeam };
139e3e4820dSSteve Longerbeam
140e3e4820dSSteve Longerbeam /* BT.601 RGB limited-range to YUV full-range */
141e3e4820dSSteve Longerbeam static const struct ipu_ic_csc_params rgbl2yuvf_601 = {
142e3e4820dSSteve Longerbeam .coeff = {
143e3e4820dSSteve Longerbeam { 89, 175, 34, },
144e3e4820dSSteve Longerbeam { -50, -99, 149, },
145e3e4820dSSteve Longerbeam { 149, -125, -24, },
146e3e4820dSSteve Longerbeam },
147e3e4820dSSteve Longerbeam .offset = { -75, 512, 512, },
148e3e4820dSSteve Longerbeam .scale = 1,
149e3e4820dSSteve Longerbeam };
150e3e4820dSSteve Longerbeam
151e3e4820dSSteve Longerbeam /* BT.601 RGB limited-range to YUV limited-range */
152e3e4820dSSteve Longerbeam static const struct ipu_ic_csc_params rgbl2yuvl_601 = {
153e3e4820dSSteve Longerbeam .coeff = {
154e3e4820dSSteve Longerbeam { 77, 150, 29, },
155e3e4820dSSteve Longerbeam { -44, -87, 131, },
156e3e4820dSSteve Longerbeam { 131, -110, -21, },
157e3e4820dSSteve Longerbeam },
158e3e4820dSSteve Longerbeam .offset = { 0, 512, 512, },
159e3e4820dSSteve Longerbeam .scale = 1,
160e3e4820dSSteve Longerbeam .sat = true,
161e3e4820dSSteve Longerbeam };
162e3e4820dSSteve Longerbeam
163f208b26eSSteve Longerbeam /*
164f208b26eSSteve Longerbeam * BT.601 YUV full-range to RGB full-range
165f208b26eSSteve Longerbeam *
166f208b26eSSteve Longerbeam * R = 1. * Y + 0 * (Cb - 128) + 1.4020 * (Cr - 128)
167f208b26eSSteve Longerbeam * G = 1. * Y - .3441 * (Cb - 128) - .7141 * (Cr - 128)
168f208b26eSSteve Longerbeam * B = 1. * Y + 1.7720 * (Cb - 128) + 0 * (Cr - 128)
169f208b26eSSteve Longerbeam *
170f208b26eSSteve Longerbeam * equivalently (factoring out the offsets):
171f208b26eSSteve Longerbeam *
172f208b26eSSteve Longerbeam * R = 1. * Y + 0 * Cb + 1.4020 * Cr - 179.456
173f208b26eSSteve Longerbeam * G = 1. * Y - .3441 * Cb - .7141 * Cr + 135.450
174f208b26eSSteve Longerbeam * B = 1. * Y + 1.7720 * Cb + 0 * Cr - 226.816
175f208b26eSSteve Longerbeam */
176f208b26eSSteve Longerbeam static const struct ipu_ic_csc_params yuvf2rgbf_601 = {
177f208b26eSSteve Longerbeam .coeff = {
178f208b26eSSteve Longerbeam { 128, 0, 179, },
179f208b26eSSteve Longerbeam { 128, -44, -91, },
180f208b26eSSteve Longerbeam { 128, 227, 0, },
181f208b26eSSteve Longerbeam },
182f208b26eSSteve Longerbeam .offset = { -359, 271, -454, },
183f208b26eSSteve Longerbeam .scale = 2,
184f208b26eSSteve Longerbeam };
185f208b26eSSteve Longerbeam
186e3e4820dSSteve Longerbeam /* BT.601 YUV full-range to RGB limited-range */
187e3e4820dSSteve Longerbeam static const struct ipu_ic_csc_params yuvf2rgbl_601 = {
188e3e4820dSSteve Longerbeam .coeff = {
189e3e4820dSSteve Longerbeam { 110, 0, 154, },
190e3e4820dSSteve Longerbeam { 110, -38, -78, },
191e3e4820dSSteve Longerbeam { 110, 195, 0, },
192e3e4820dSSteve Longerbeam },
193e3e4820dSSteve Longerbeam .offset = { -276, 265, -358, },
194e3e4820dSSteve Longerbeam .scale = 2,
195e3e4820dSSteve Longerbeam };
196e3e4820dSSteve Longerbeam
197e3e4820dSSteve Longerbeam /* BT.601 YUV limited-range to RGB full-range */
198e3e4820dSSteve Longerbeam static const struct ipu_ic_csc_params yuvl2rgbf_601 = {
199e3e4820dSSteve Longerbeam .coeff = {
200e3e4820dSSteve Longerbeam { 75, 0, 102, },
201e3e4820dSSteve Longerbeam { 75, -25, -52, },
202e3e4820dSSteve Longerbeam { 75, 129, 0, },
203e3e4820dSSteve Longerbeam },
204e3e4820dSSteve Longerbeam .offset = { -223, 136, -277, },
205e3e4820dSSteve Longerbeam .scale = 3,
206e3e4820dSSteve Longerbeam };
207e3e4820dSSteve Longerbeam
208e3e4820dSSteve Longerbeam /* BT.601 YUV limited-range to RGB limited-range */
209e3e4820dSSteve Longerbeam static const struct ipu_ic_csc_params yuvl2rgbl_601 = {
210e3e4820dSSteve Longerbeam .coeff = {
211e3e4820dSSteve Longerbeam { 128, 0, 175, },
212e3e4820dSSteve Longerbeam { 128, -43, -89, },
213e3e4820dSSteve Longerbeam { 128, 222, 0, },
214e3e4820dSSteve Longerbeam },
215e3e4820dSSteve Longerbeam .offset = { -351, 265, -443, },
216e3e4820dSSteve Longerbeam .scale = 2,
217e3e4820dSSteve Longerbeam };
218e3e4820dSSteve Longerbeam
219f208b26eSSteve Longerbeam static const struct ipu_ic_csc_params *rgb2yuv_601[] = {
220f208b26eSSteve Longerbeam &rgbf2yuvf_601,
221e3e4820dSSteve Longerbeam &rgbf2yuvl_601,
222e3e4820dSSteve Longerbeam &rgbl2yuvf_601,
223e3e4820dSSteve Longerbeam &rgbl2yuvl_601,
224f208b26eSSteve Longerbeam };
225f208b26eSSteve Longerbeam
226f208b26eSSteve Longerbeam static const struct ipu_ic_csc_params *yuv2rgb_601[] = {
227f208b26eSSteve Longerbeam &yuvf2rgbf_601,
228e3e4820dSSteve Longerbeam &yuvf2rgbl_601,
229e3e4820dSSteve Longerbeam &yuvl2rgbf_601,
230e3e4820dSSteve Longerbeam &yuvl2rgbl_601,
231f208b26eSSteve Longerbeam };
232f208b26eSSteve Longerbeam
233614014cfSSteve Longerbeam /*
234614014cfSSteve Longerbeam * REC.709 encoding from RGB full range to YUV full range:
235614014cfSSteve Longerbeam *
236614014cfSSteve Longerbeam * Y = .2126 * R + .7152 * G + .0722 * B
237614014cfSSteve Longerbeam * U = -.1146 * R - .3854 * G + .5000 * B + 128
238614014cfSSteve Longerbeam * V = .5000 * R - .4542 * G - .0458 * B + 128
239614014cfSSteve Longerbeam */
240614014cfSSteve Longerbeam static const struct ipu_ic_csc_params rgbf2yuvf_709 = {
241614014cfSSteve Longerbeam .coeff = {
242614014cfSSteve Longerbeam { 54, 183, 19 },
243614014cfSSteve Longerbeam { -29, -99, 128 },
244614014cfSSteve Longerbeam { 128, -116, -12 },
245614014cfSSteve Longerbeam },
246614014cfSSteve Longerbeam .offset = { 0, 512, 512 },
247614014cfSSteve Longerbeam .scale = 1,
248614014cfSSteve Longerbeam };
249614014cfSSteve Longerbeam
250614014cfSSteve Longerbeam /* Rec.709 RGB full-range to YUV limited-range */
251614014cfSSteve Longerbeam static const struct ipu_ic_csc_params rgbf2yuvl_709 = {
252614014cfSSteve Longerbeam .coeff = {
253614014cfSSteve Longerbeam { 47, 157, 16, },
254614014cfSSteve Longerbeam { -26, -87, 112, },
255614014cfSSteve Longerbeam { 112, -102, -10, },
256614014cfSSteve Longerbeam },
257614014cfSSteve Longerbeam .offset = { 64, 512, 512, },
258614014cfSSteve Longerbeam .scale = 1,
259614014cfSSteve Longerbeam .sat = true,
260614014cfSSteve Longerbeam };
261614014cfSSteve Longerbeam
262614014cfSSteve Longerbeam /* Rec.709 RGB limited-range to YUV full-range */
263614014cfSSteve Longerbeam static const struct ipu_ic_csc_params rgbl2yuvf_709 = {
264614014cfSSteve Longerbeam .coeff = {
265614014cfSSteve Longerbeam { 63, 213, 22, },
266614014cfSSteve Longerbeam { -34, -115, 149, },
267614014cfSSteve Longerbeam { 149, -135, -14, },
268614014cfSSteve Longerbeam },
269614014cfSSteve Longerbeam .offset = { -75, 512, 512, },
270614014cfSSteve Longerbeam .scale = 1,
271614014cfSSteve Longerbeam };
272614014cfSSteve Longerbeam
273614014cfSSteve Longerbeam /* Rec.709 RGB limited-range to YUV limited-range */
274614014cfSSteve Longerbeam static const struct ipu_ic_csc_params rgbl2yuvl_709 = {
275614014cfSSteve Longerbeam .coeff = {
276614014cfSSteve Longerbeam { 54, 183, 18, },
277614014cfSSteve Longerbeam { -30, -101, 131, },
278614014cfSSteve Longerbeam { 131, -119, -12, },
279614014cfSSteve Longerbeam },
280614014cfSSteve Longerbeam .offset = { 0, 512, 512, },
281614014cfSSteve Longerbeam .scale = 1,
282614014cfSSteve Longerbeam .sat = true,
283614014cfSSteve Longerbeam };
284614014cfSSteve Longerbeam
285614014cfSSteve Longerbeam /*
286614014cfSSteve Longerbeam * Inverse REC.709 encoding from YUV full range to RGB full range:
287614014cfSSteve Longerbeam *
288614014cfSSteve Longerbeam * R = 1. * Y + 0 * (Cb - 128) + 1.5748 * (Cr - 128)
289614014cfSSteve Longerbeam * G = 1. * Y - .1873 * (Cb - 128) - .4681 * (Cr - 128)
290614014cfSSteve Longerbeam * B = 1. * Y + 1.8556 * (Cb - 128) + 0 * (Cr - 128)
291614014cfSSteve Longerbeam *
292614014cfSSteve Longerbeam * equivalently (factoring out the offsets):
293614014cfSSteve Longerbeam *
294614014cfSSteve Longerbeam * R = 1. * Y + 0 * Cb + 1.5748 * Cr - 201.574
295614014cfSSteve Longerbeam * G = 1. * Y - .1873 * Cb - .4681 * Cr + 83.891
296614014cfSSteve Longerbeam * B = 1. * Y + 1.8556 * Cb + 0 * Cr - 237.517
297614014cfSSteve Longerbeam */
298614014cfSSteve Longerbeam static const struct ipu_ic_csc_params yuvf2rgbf_709 = {
299614014cfSSteve Longerbeam .coeff = {
300614014cfSSteve Longerbeam { 128, 0, 202 },
301614014cfSSteve Longerbeam { 128, -24, -60 },
302614014cfSSteve Longerbeam { 128, 238, 0 },
303614014cfSSteve Longerbeam },
304614014cfSSteve Longerbeam .offset = { -403, 168, -475 },
305614014cfSSteve Longerbeam .scale = 2,
306614014cfSSteve Longerbeam };
307614014cfSSteve Longerbeam
308614014cfSSteve Longerbeam /* Rec.709 YUV full-range to RGB limited-range */
309614014cfSSteve Longerbeam static const struct ipu_ic_csc_params yuvf2rgbl_709 = {
310614014cfSSteve Longerbeam .coeff = {
311614014cfSSteve Longerbeam { 110, 0, 173, },
312614014cfSSteve Longerbeam { 110, -21, -51, },
313614014cfSSteve Longerbeam { 110, 204, 0, },
314614014cfSSteve Longerbeam },
315614014cfSSteve Longerbeam .offset = { -314, 176, -376, },
316614014cfSSteve Longerbeam .scale = 2,
317614014cfSSteve Longerbeam };
318614014cfSSteve Longerbeam
319614014cfSSteve Longerbeam /* Rec.709 YUV limited-range to RGB full-range */
320614014cfSSteve Longerbeam static const struct ipu_ic_csc_params yuvl2rgbf_709 = {
321614014cfSSteve Longerbeam .coeff = {
322614014cfSSteve Longerbeam { 75, 0, 115, },
323614014cfSSteve Longerbeam { 75, -14, -34, },
324614014cfSSteve Longerbeam { 75, 135, 0, },
325614014cfSSteve Longerbeam },
326614014cfSSteve Longerbeam .offset = { -248, 77, -289, },
327614014cfSSteve Longerbeam .scale = 3,
328614014cfSSteve Longerbeam };
329614014cfSSteve Longerbeam
330614014cfSSteve Longerbeam /* Rec.709 YUV limited-range to RGB limited-range */
331614014cfSSteve Longerbeam static const struct ipu_ic_csc_params yuvl2rgbl_709 = {
332614014cfSSteve Longerbeam .coeff = {
333614014cfSSteve Longerbeam { 128, 0, 197, },
334614014cfSSteve Longerbeam { 128, -23, -59, },
335614014cfSSteve Longerbeam { 128, 232, 0, },
336614014cfSSteve Longerbeam },
337614014cfSSteve Longerbeam .offset = { -394, 164, -464, },
338614014cfSSteve Longerbeam .scale = 2,
339614014cfSSteve Longerbeam };
340614014cfSSteve Longerbeam
341614014cfSSteve Longerbeam static const struct ipu_ic_csc_params *rgb2yuv_709[] = {
342614014cfSSteve Longerbeam &rgbf2yuvf_709,
343614014cfSSteve Longerbeam &rgbf2yuvl_709,
344614014cfSSteve Longerbeam &rgbl2yuvf_709,
345614014cfSSteve Longerbeam &rgbl2yuvl_709,
346614014cfSSteve Longerbeam };
347614014cfSSteve Longerbeam
348614014cfSSteve Longerbeam static const struct ipu_ic_csc_params *yuv2rgb_709[] = {
349614014cfSSteve Longerbeam &yuvf2rgbf_709,
350614014cfSSteve Longerbeam &yuvf2rgbl_709,
351614014cfSSteve Longerbeam &yuvl2rgbf_709,
352614014cfSSteve Longerbeam &yuvl2rgbl_709,
353614014cfSSteve Longerbeam };
354614014cfSSteve Longerbeam
calc_csc_coeffs(struct ipu_ic_csc * csc)355f208b26eSSteve Longerbeam static int calc_csc_coeffs(struct ipu_ic_csc *csc)
356f208b26eSSteve Longerbeam {
357e3e4820dSSteve Longerbeam const struct ipu_ic_csc_params **params_tbl;
358e3e4820dSSteve Longerbeam int tbl_idx;
359e3e4820dSSteve Longerbeam
360e3e4820dSSteve Longerbeam tbl_idx = (QUANT_MAP(csc->in_cs.quant) << 1) |
361e3e4820dSSteve Longerbeam QUANT_MAP(csc->out_cs.quant);
362f208b26eSSteve Longerbeam
363f208b26eSSteve Longerbeam if (csc->in_cs.cs == csc->out_cs.cs) {
364f208b26eSSteve Longerbeam csc->params = (csc->in_cs.cs == IPUV3_COLORSPACE_YUV) ?
365e3e4820dSSteve Longerbeam *yuv2yuv[tbl_idx] : *rgb2rgb[tbl_idx];
366e3e4820dSSteve Longerbeam
367f208b26eSSteve Longerbeam return 0;
368f208b26eSSteve Longerbeam }
369f208b26eSSteve Longerbeam
370e3e4820dSSteve Longerbeam /* YUV <-> RGB encoding is required */
371e3e4820dSSteve Longerbeam
372614014cfSSteve Longerbeam switch (csc->out_cs.enc) {
373614014cfSSteve Longerbeam case V4L2_YCBCR_ENC_601:
374e3e4820dSSteve Longerbeam params_tbl = (csc->in_cs.cs == IPUV3_COLORSPACE_YUV) ?
375e3e4820dSSteve Longerbeam yuv2rgb_601 : rgb2yuv_601;
376614014cfSSteve Longerbeam break;
377614014cfSSteve Longerbeam case V4L2_YCBCR_ENC_709:
378614014cfSSteve Longerbeam params_tbl = (csc->in_cs.cs == IPUV3_COLORSPACE_YUV) ?
379614014cfSSteve Longerbeam yuv2rgb_709 : rgb2yuv_709;
380614014cfSSteve Longerbeam break;
381614014cfSSteve Longerbeam default:
382614014cfSSteve Longerbeam return -ENOTSUPP;
383614014cfSSteve Longerbeam }
384e3e4820dSSteve Longerbeam
385e3e4820dSSteve Longerbeam csc->params = *params_tbl[tbl_idx];
386f208b26eSSteve Longerbeam
387f208b26eSSteve Longerbeam return 0;
388f208b26eSSteve Longerbeam }
389f208b26eSSteve Longerbeam
__ipu_ic_calc_csc(struct ipu_ic_csc * csc)390f208b26eSSteve Longerbeam int __ipu_ic_calc_csc(struct ipu_ic_csc *csc)
391f208b26eSSteve Longerbeam {
392f208b26eSSteve Longerbeam return calc_csc_coeffs(csc);
393f208b26eSSteve Longerbeam }
394f208b26eSSteve Longerbeam EXPORT_SYMBOL_GPL(__ipu_ic_calc_csc);
395f208b26eSSteve Longerbeam
ipu_ic_calc_csc(struct ipu_ic_csc * csc,enum v4l2_ycbcr_encoding in_enc,enum v4l2_quantization in_quant,enum ipu_color_space in_cs,enum v4l2_ycbcr_encoding out_enc,enum v4l2_quantization out_quant,enum ipu_color_space out_cs)396f208b26eSSteve Longerbeam int ipu_ic_calc_csc(struct ipu_ic_csc *csc,
397f208b26eSSteve Longerbeam enum v4l2_ycbcr_encoding in_enc,
398f208b26eSSteve Longerbeam enum v4l2_quantization in_quant,
399f208b26eSSteve Longerbeam enum ipu_color_space in_cs,
400f208b26eSSteve Longerbeam enum v4l2_ycbcr_encoding out_enc,
401f208b26eSSteve Longerbeam enum v4l2_quantization out_quant,
402f208b26eSSteve Longerbeam enum ipu_color_space out_cs)
403f208b26eSSteve Longerbeam {
404f208b26eSSteve Longerbeam ipu_ic_fill_colorspace(&csc->in_cs, in_enc, in_quant, in_cs);
405f208b26eSSteve Longerbeam ipu_ic_fill_colorspace(&csc->out_cs, out_enc, out_quant, out_cs);
406f208b26eSSteve Longerbeam
407f208b26eSSteve Longerbeam return __ipu_ic_calc_csc(csc);
408f208b26eSSteve Longerbeam }
409f208b26eSSteve Longerbeam EXPORT_SYMBOL_GPL(ipu_ic_calc_csc);
410