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      1 /*	$NetBSD: amdgpu_dc_hw_sequencer.c,v 1.4 2021/12/19 10:59:36 riastradh Exp $	*/
      2 
      3 /*
      4  * Copyright 2015 Advanced Micro Devices, Inc.
      5  *
      6  * Permission is hereby granted, free of charge, to any person obtaining a
      7  * copy of this software and associated documentation files (the "Software"),
      8  * to deal in the Software without restriction, including without limitation
      9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     10  * and/or sell copies of the Software, and to permit persons to whom the
     11  * Software is furnished to do so, subject to the following conditions:
     12  *
     13  * The above copyright notice and this permission notice shall be included in
     14  * all copies or substantial portions of the Software.
     15  *
     16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
     20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     22  * OTHER DEALINGS IN THE SOFTWARE.
     23  *
     24  * Authors: AMD
     25  *
     26  */
     27 
     28 #include <sys/cdefs.h>
     29 __KERNEL_RCSID(0, "$NetBSD: amdgpu_dc_hw_sequencer.c,v 1.4 2021/12/19 10:59:36 riastradh Exp $");
     30 
     31 #include <linux/delay.h>
     32 
     33 #include "dm_services.h"
     34 #include "core_types.h"
     35 #include "timing_generator.h"
     36 #include "hw_sequencer.h"
     37 
     38 #define NUM_ELEMENTS(a) (sizeof(a) / sizeof((a)[0]))
     39 
     40 /* used as index in array of black_color_format */
     41 enum black_color_format {
     42 	BLACK_COLOR_FORMAT_RGB_FULLRANGE = 0,
     43 	BLACK_COLOR_FORMAT_RGB_LIMITED,
     44 	BLACK_COLOR_FORMAT_YUV_TV,
     45 	BLACK_COLOR_FORMAT_YUV_CV,
     46 	BLACK_COLOR_FORMAT_YUV_SUPER_AA,
     47 	BLACK_COLOR_FORMAT_DEBUG,
     48 };
     49 
     50 enum dc_color_space_type {
     51 	COLOR_SPACE_RGB_TYPE,
     52 	COLOR_SPACE_RGB_LIMITED_TYPE,
     53 	COLOR_SPACE_YCBCR601_TYPE,
     54 	COLOR_SPACE_YCBCR709_TYPE,
     55 	COLOR_SPACE_YCBCR2020_TYPE,
     56 	COLOR_SPACE_YCBCR601_LIMITED_TYPE,
     57 	COLOR_SPACE_YCBCR709_LIMITED_TYPE,
     58 	COLOR_SPACE_YCBCR709_BLACK_TYPE,
     59 };
     60 
     61 static const struct tg_color black_color_format[] = {
     62 	/* BlackColorFormat_RGB_FullRange */
     63 	{0, 0, 0},
     64 	/* BlackColorFormat_RGB_Limited */
     65 	{0x40, 0x40, 0x40},
     66 	/* BlackColorFormat_YUV_TV */
     67 	{0x200, 0x40, 0x200},
     68 	/* BlackColorFormat_YUV_CV */
     69 	{0x1f4, 0x40, 0x1f4},
     70 	/* BlackColorFormat_YUV_SuperAA */
     71 	{0x1a2, 0x20, 0x1a2},
     72 	/* visual confirm debug */
     73 	{0xff, 0xff, 0},
     74 };
     75 
     76 struct out_csc_color_matrix_type {
     77 	enum dc_color_space_type color_space_type;
     78 	uint16_t regval[12];
     79 };
     80 
     81 static const struct out_csc_color_matrix_type output_csc_matrix[] = {
     82 	{ COLOR_SPACE_RGB_TYPE,
     83 		{ 0x2000, 0, 0, 0, 0, 0x2000, 0, 0, 0, 0, 0x2000, 0} },
     84 	{ COLOR_SPACE_RGB_LIMITED_TYPE,
     85 		{ 0x1B67, 0, 0, 0x201, 0, 0x1B67, 0, 0x201, 0, 0, 0x1B67, 0x201} },
     86 	{ COLOR_SPACE_YCBCR601_TYPE,
     87 		{ 0xE04, 0xF444, 0xFDB9, 0x1004, 0x831, 0x1016, 0x320, 0x201, 0xFB45,
     88 				0xF6B7, 0xE04, 0x1004} },
     89 	{ COLOR_SPACE_YCBCR709_TYPE,
     90 		{ 0xE04, 0xF345, 0xFEB7, 0x1004, 0x5D3, 0x1399, 0x1FA,
     91 				0x201, 0xFCCA, 0xF533, 0xE04, 0x1004} },
     92 	/* TODO: correct values below */
     93 	{ COLOR_SPACE_YCBCR601_LIMITED_TYPE,
     94 		{ 0xE00, 0xF447, 0xFDB9, 0x1000, 0x991,
     95 				0x12C9, 0x3A6, 0x200, 0xFB47, 0xF6B9, 0xE00, 0x1000} },
     96 	{ COLOR_SPACE_YCBCR709_LIMITED_TYPE,
     97 		{ 0xE00, 0xF349, 0xFEB7, 0x1000, 0x6CE, 0x16E3,
     98 				0x24F, 0x200, 0xFCCB, 0xF535, 0xE00, 0x1000} },
     99 	{ COLOR_SPACE_YCBCR2020_TYPE,
    100 		{ 0x1000, 0xF149, 0xFEB7, 0x0000, 0x0868, 0x15B2,
    101 				0x01E6, 0x0000, 0xFB88, 0xF478, 0x1000, 0x0000} },
    102 	{ COLOR_SPACE_YCBCR709_BLACK_TYPE,
    103 		{ 0x0000, 0x0000, 0x0000, 0x1000, 0x0000, 0x0000,
    104 				0x0000, 0x0200, 0x0000, 0x0000, 0x0000, 0x1000} },
    105 };
    106 
    107 static bool is_rgb_type(
    108 		enum dc_color_space color_space)
    109 {
    110 	bool ret = false;
    111 
    112 	if (color_space == COLOR_SPACE_SRGB			||
    113 		color_space == COLOR_SPACE_XR_RGB		||
    114 		color_space == COLOR_SPACE_MSREF_SCRGB		||
    115 		color_space == COLOR_SPACE_2020_RGB_FULLRANGE	||
    116 		color_space == COLOR_SPACE_ADOBERGB		||
    117 		color_space == COLOR_SPACE_DCIP3	||
    118 		color_space == COLOR_SPACE_DOLBYVISION)
    119 		ret = true;
    120 	return ret;
    121 }
    122 
    123 static bool is_rgb_limited_type(
    124 		enum dc_color_space color_space)
    125 {
    126 	bool ret = false;
    127 
    128 	if (color_space == COLOR_SPACE_SRGB_LIMITED		||
    129 		color_space == COLOR_SPACE_2020_RGB_LIMITEDRANGE)
    130 		ret = true;
    131 	return ret;
    132 }
    133 
    134 static bool is_ycbcr601_type(
    135 		enum dc_color_space color_space)
    136 {
    137 	bool ret = false;
    138 
    139 	if (color_space == COLOR_SPACE_YCBCR601	||
    140 		color_space == COLOR_SPACE_XV_YCC_601)
    141 		ret = true;
    142 	return ret;
    143 }
    144 
    145 static bool is_ycbcr601_limited_type(
    146 		enum dc_color_space color_space)
    147 {
    148 	bool ret = false;
    149 
    150 	if (color_space == COLOR_SPACE_YCBCR601_LIMITED)
    151 		ret = true;
    152 	return ret;
    153 }
    154 
    155 static bool is_ycbcr709_type(
    156 		enum dc_color_space color_space)
    157 {
    158 	bool ret = false;
    159 
    160 	if (color_space == COLOR_SPACE_YCBCR709	||
    161 		color_space == COLOR_SPACE_XV_YCC_709)
    162 		ret = true;
    163 	return ret;
    164 }
    165 
    166 static bool is_ycbcr2020_type(
    167 	enum dc_color_space color_space)
    168 {
    169 	bool ret = false;
    170 
    171 	if (color_space == COLOR_SPACE_2020_YCBCR)
    172 		ret = true;
    173 	return ret;
    174 }
    175 
    176 static bool is_ycbcr709_limited_type(
    177 		enum dc_color_space color_space)
    178 {
    179 	bool ret = false;
    180 
    181 	if (color_space == COLOR_SPACE_YCBCR709_LIMITED)
    182 		ret = true;
    183 	return ret;
    184 }
    185 enum dc_color_space_type get_color_space_type(enum dc_color_space color_space)
    186 {
    187 	enum dc_color_space_type type = COLOR_SPACE_RGB_TYPE;
    188 
    189 	if (is_rgb_type(color_space))
    190 		type = COLOR_SPACE_RGB_TYPE;
    191 	else if (is_rgb_limited_type(color_space))
    192 		type = COLOR_SPACE_RGB_LIMITED_TYPE;
    193 	else if (is_ycbcr601_type(color_space))
    194 		type = COLOR_SPACE_YCBCR601_TYPE;
    195 	else if (is_ycbcr709_type(color_space))
    196 		type = COLOR_SPACE_YCBCR709_TYPE;
    197 	else if (is_ycbcr601_limited_type(color_space))
    198 		type = COLOR_SPACE_YCBCR601_LIMITED_TYPE;
    199 	else if (is_ycbcr709_limited_type(color_space))
    200 		type = COLOR_SPACE_YCBCR709_LIMITED_TYPE;
    201 	else if (is_ycbcr2020_type(color_space))
    202 		type = COLOR_SPACE_YCBCR2020_TYPE;
    203 	else if (color_space == COLOR_SPACE_YCBCR709)
    204 		type = COLOR_SPACE_YCBCR709_BLACK_TYPE;
    205 	else if (color_space == COLOR_SPACE_YCBCR709_BLACK)
    206 		type = COLOR_SPACE_YCBCR709_BLACK_TYPE;
    207 	return type;
    208 }
    209 
    210 const uint16_t *find_color_matrix(enum dc_color_space color_space,
    211 							uint32_t *array_size)
    212 {
    213 	int i;
    214 	enum dc_color_space_type type;
    215 	const uint16_t *val = NULL;
    216 	int arr_size = NUM_ELEMENTS(output_csc_matrix);
    217 
    218 	type = get_color_space_type(color_space);
    219 	for (i = 0; i < arr_size; i++)
    220 		if (output_csc_matrix[i].color_space_type == type) {
    221 			val = output_csc_matrix[i].regval;
    222 			*array_size = 12;
    223 			break;
    224 		}
    225 
    226 	return val;
    227 }
    228 
    229 
    230 void color_space_to_black_color(
    231 	const struct dc *dc,
    232 	enum dc_color_space colorspace,
    233 	struct tg_color *black_color)
    234 {
    235 	switch (colorspace) {
    236 	case COLOR_SPACE_YCBCR601:
    237 	case COLOR_SPACE_YCBCR709:
    238 	case COLOR_SPACE_YCBCR709_BLACK:
    239 	case COLOR_SPACE_YCBCR601_LIMITED:
    240 	case COLOR_SPACE_YCBCR709_LIMITED:
    241 	case COLOR_SPACE_2020_YCBCR:
    242 		*black_color = black_color_format[BLACK_COLOR_FORMAT_YUV_CV];
    243 		break;
    244 
    245 	case COLOR_SPACE_SRGB_LIMITED:
    246 		*black_color =
    247 			black_color_format[BLACK_COLOR_FORMAT_RGB_LIMITED];
    248 		break;
    249 
    250 	/**
    251 	 * Remove default and add case for all color space
    252 	 * so when we forget to add new color space
    253 	 * compiler will give a warning
    254 	 */
    255 	case COLOR_SPACE_UNKNOWN:
    256 	case COLOR_SPACE_SRGB:
    257 	case COLOR_SPACE_XR_RGB:
    258 	case COLOR_SPACE_MSREF_SCRGB:
    259 	case COLOR_SPACE_XV_YCC_709:
    260 	case COLOR_SPACE_XV_YCC_601:
    261 	case COLOR_SPACE_2020_RGB_FULLRANGE:
    262 	case COLOR_SPACE_2020_RGB_LIMITEDRANGE:
    263 	case COLOR_SPACE_ADOBERGB:
    264 	case COLOR_SPACE_DCIP3:
    265 	case COLOR_SPACE_DISPLAYNATIVE:
    266 	case COLOR_SPACE_DOLBYVISION:
    267 	case COLOR_SPACE_APPCTRL:
    268 	case COLOR_SPACE_CUSTOMPOINTS:
    269 		/* fefault is sRGB black (full range). */
    270 		*black_color =
    271 			black_color_format[BLACK_COLOR_FORMAT_RGB_FULLRANGE];
    272 		/* default is sRGB black 0. */
    273 		break;
    274 	}
    275 }
    276 
    277 bool hwss_wait_for_blank_complete(
    278 		struct timing_generator *tg)
    279 {
    280 	int counter;
    281 
    282 	/* Not applicable if the pipe is not primary, save 300ms of boot time */
    283 	if (!tg->funcs->is_blanked)
    284 		return true;
    285 	for (counter = 0; counter < 100; counter++) {
    286 		if (tg->funcs->is_blanked(tg))
    287 			break;
    288 
    289 		msleep(1);
    290 	}
    291 
    292 	if (counter == 100) {
    293 		dm_error("DC: failed to blank crtc!\n");
    294 		return false;
    295 	}
    296 
    297 	return true;
    298 }
    299