1 /*
2  * Copyright 2015 Advanced Micro Devices, Inc.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  *
22  * Authors: AMD
23  *
24  */
25 
26 #include "dm_services.h"
27 #include "core_types.h"
28 #include "timing_generator.h"
29 #include "hw_sequencer.h"
30 
31 #define NUM_ELEMENTS(a) (sizeof(a) / sizeof((a)[0]))
32 
33 /* used as index in array of black_color_format */
34 enum black_color_format {
35 	BLACK_COLOR_FORMAT_RGB_FULLRANGE = 0,
36 	BLACK_COLOR_FORMAT_RGB_LIMITED,
37 	BLACK_COLOR_FORMAT_YUV_TV,
38 	BLACK_COLOR_FORMAT_YUV_CV,
39 	BLACK_COLOR_FORMAT_YUV_SUPER_AA,
40 	BLACK_COLOR_FORMAT_DEBUG,
41 };
42 
43 enum dc_color_space_type {
44 	COLOR_SPACE_RGB_TYPE,
45 	COLOR_SPACE_RGB_LIMITED_TYPE,
46 	COLOR_SPACE_YCBCR601_TYPE,
47 	COLOR_SPACE_YCBCR709_TYPE,
48 	COLOR_SPACE_YCBCR601_LIMITED_TYPE,
49 	COLOR_SPACE_YCBCR709_LIMITED_TYPE
50 };
51 
52 static const struct tg_color black_color_format[] = {
53 	/* BlackColorFormat_RGB_FullRange */
54 	{0, 0, 0},
55 	/* BlackColorFormat_RGB_Limited */
56 	{0x40, 0x40, 0x40},
57 	/* BlackColorFormat_YUV_TV */
58 	{0x200, 0x40, 0x200},
59 	/* BlackColorFormat_YUV_CV */
60 	{0x1f4, 0x40, 0x1f4},
61 	/* BlackColorFormat_YUV_SuperAA */
62 	{0x1a2, 0x20, 0x1a2},
63 	/* visual confirm debug */
64 	{0xff, 0xff, 0},
65 };
66 
67 struct out_csc_color_matrix_type {
68 	enum dc_color_space_type color_space_type;
69 	uint16_t regval[12];
70 };
71 
72 static const struct out_csc_color_matrix_type output_csc_matrix[] = {
73 	{ COLOR_SPACE_RGB_TYPE,
74 		{ 0x2000, 0, 0, 0, 0, 0x2000, 0, 0, 0, 0, 0x2000, 0} },
75 	{ COLOR_SPACE_RGB_LIMITED_TYPE,
76 		{ 0x1B67, 0, 0, 0x201, 0, 0x1B67, 0, 0x201, 0, 0, 0x1B67, 0x201} },
77 	{ COLOR_SPACE_YCBCR601_TYPE,
78 		{ 0xE04, 0xF444, 0xFDB9, 0x1004, 0x831, 0x1016, 0x320, 0x201, 0xFB45,
79 				0xF6B7, 0xE04, 0x1004} },
80 	{ COLOR_SPACE_YCBCR709_TYPE,
81 		{ 0xE04, 0xF345, 0xFEB7, 0x1004, 0x5D3, 0x1399, 0x1FA,
82 				0x201, 0xFCCA, 0xF533, 0xE04, 0x1004} },
83 
84 	/* TODO: correct values below */
85 	{ COLOR_SPACE_YCBCR601_LIMITED_TYPE,
86 		{ 0xE00, 0xF447, 0xFDB9, 0x1000, 0x991,
87 				0x12C9, 0x3A6, 0x200, 0xFB47, 0xF6B9, 0xE00, 0x1000} },
88 	{ COLOR_SPACE_YCBCR709_LIMITED_TYPE,
89 		{ 0xE00, 0xF349, 0xFEB7, 0x1000, 0x6CE, 0x16E3,
90 				0x24F, 0x200, 0xFCCB, 0xF535, 0xE00, 0x1000} },
91 };
92 
93 static bool is_rgb_type(
94 		enum dc_color_space color_space)
95 {
96 	bool ret = false;
97 
98 	if (color_space == COLOR_SPACE_SRGB			||
99 		color_space == COLOR_SPACE_XR_RGB		||
100 		color_space == COLOR_SPACE_MSREF_SCRGB		||
101 		color_space == COLOR_SPACE_2020_RGB_FULLRANGE	||
102 		color_space == COLOR_SPACE_ADOBERGB		||
103 		color_space == COLOR_SPACE_DCIP3	||
104 		color_space == COLOR_SPACE_DOLBYVISION)
105 		ret = true;
106 	return ret;
107 }
108 
109 static bool is_rgb_limited_type(
110 		enum dc_color_space color_space)
111 {
112 	bool ret = false;
113 
114 	if (color_space == COLOR_SPACE_SRGB_LIMITED		||
115 		color_space == COLOR_SPACE_2020_RGB_LIMITEDRANGE)
116 		ret = true;
117 	return ret;
118 }
119 
120 static bool is_ycbcr601_type(
121 		enum dc_color_space color_space)
122 {
123 	bool ret = false;
124 
125 	if (color_space == COLOR_SPACE_YCBCR601	||
126 		color_space == COLOR_SPACE_XV_YCC_601)
127 		ret = true;
128 	return ret;
129 }
130 
131 static bool is_ycbcr601_limited_type(
132 		enum dc_color_space color_space)
133 {
134 	bool ret = false;
135 
136 	if (color_space == COLOR_SPACE_YCBCR601_LIMITED)
137 		ret = true;
138 	return ret;
139 }
140 
141 static bool is_ycbcr709_type(
142 		enum dc_color_space color_space)
143 {
144 	bool ret = false;
145 
146 	if (color_space == COLOR_SPACE_YCBCR709	||
147 		color_space == COLOR_SPACE_XV_YCC_709)
148 		ret = true;
149 	return ret;
150 }
151 
152 static bool is_ycbcr709_limited_type(
153 		enum dc_color_space color_space)
154 {
155 	bool ret = false;
156 
157 	if (color_space == COLOR_SPACE_YCBCR709_LIMITED)
158 		ret = true;
159 	return ret;
160 }
161 enum dc_color_space_type get_color_space_type(enum dc_color_space color_space)
162 {
163 	enum dc_color_space_type type = COLOR_SPACE_RGB_TYPE;
164 
165 	if (is_rgb_type(color_space))
166 		type = COLOR_SPACE_RGB_TYPE;
167 	else if (is_rgb_limited_type(color_space))
168 		type = COLOR_SPACE_RGB_LIMITED_TYPE;
169 	else if (is_ycbcr601_type(color_space))
170 		type = COLOR_SPACE_YCBCR601_TYPE;
171 	else if (is_ycbcr709_type(color_space))
172 		type = COLOR_SPACE_YCBCR709_TYPE;
173 	else if (is_ycbcr601_limited_type(color_space))
174 		type = COLOR_SPACE_YCBCR601_LIMITED_TYPE;
175 	else if (is_ycbcr709_limited_type(color_space))
176 		type = COLOR_SPACE_YCBCR709_LIMITED_TYPE;
177 
178 	return type;
179 }
180 
181 const uint16_t *find_color_matrix(enum dc_color_space color_space,
182 							uint32_t *array_size)
183 {
184 	int i;
185 	enum dc_color_space_type type;
186 	const uint16_t *val = NULL;
187 	int arr_size = NUM_ELEMENTS(output_csc_matrix);
188 
189 	type = get_color_space_type(color_space);
190 	for (i = 0; i < arr_size; i++)
191 		if (output_csc_matrix[i].color_space_type == type) {
192 			val = output_csc_matrix[i].regval;
193 			*array_size = 12;
194 			break;
195 		}
196 
197 	return val;
198 }
199 
200 
201 void color_space_to_black_color(
202 	const struct dc *dc,
203 	enum dc_color_space colorspace,
204 	struct tg_color *black_color)
205 {
206 	switch (colorspace) {
207 	case COLOR_SPACE_YCBCR601:
208 	case COLOR_SPACE_YCBCR709:
209 	case COLOR_SPACE_YCBCR601_LIMITED:
210 	case COLOR_SPACE_YCBCR709_LIMITED:
211 		*black_color = black_color_format[BLACK_COLOR_FORMAT_YUV_CV];
212 		break;
213 
214 	case COLOR_SPACE_SRGB_LIMITED:
215 		*black_color =
216 			black_color_format[BLACK_COLOR_FORMAT_RGB_LIMITED];
217 		break;
218 
219 	default:
220 		/* fefault is sRGB black (full range). */
221 		*black_color =
222 			black_color_format[BLACK_COLOR_FORMAT_RGB_FULLRANGE];
223 		/* default is sRGB black 0. */
224 		break;
225 	}
226 }
227 
228 bool hwss_wait_for_blank_complete(
229 		struct timing_generator *tg)
230 {
231 	int counter;
232 
233 	for (counter = 0; counter < 100; counter++) {
234 		if (tg->funcs->is_blanked(tg))
235 			break;
236 
237 		msleep(1);
238 	}
239 
240 	if (counter == 100) {
241 		dm_error("DC: failed to blank crtc!\n");
242 		return false;
243 	}
244 
245 	return true;
246 }
247