1 // SPDX-License-Identifier: MIT 2 /* 3 * Copyright (c) 2005 ASPEED Technology Inc. 4 * 5 * Permission to use, copy, modify, distribute, and sell this software and its 6 * documentation for any purpose is hereby granted without fee, provided that 7 * the above copyright notice appear in all copies and that both that 8 * copyright notice and this permission notice appear in supporting 9 * documentation, and that the name of the authors not be used in 10 * advertising or publicity pertaining to distribution of the software without 11 * specific, written prior permission. The authors makes no representations 12 * about the suitability of this software for any purpose. It is provided 13 * "as is" without express or implied warranty. 14 * 15 * THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, 16 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO 17 * EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR 18 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, 19 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER 20 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 21 * PERFORMANCE OF THIS SOFTWARE. 22 */ 23 24 #include "ast_drv.h" 25 #include "ast_vbios.h" 26 27 /* 4:3 */ 28 29 static const struct ast_vbios_enhtable res_640x480[] = { 30 { 800, 640, 8, 96, 525, 480, 2, 2, VCLK25_175, /* 60 Hz */ 31 (SyncNN | HBorder | VBorder | Charx8Dot), 60, 1, 0x2e }, 32 { 832, 640, 16, 40, 520, 480, 1, 3, VCLK31_5, /* 72 Hz */ 33 (SyncNN | HBorder | VBorder | Charx8Dot), 72, 2, 0x2e }, 34 { 840, 640, 16, 64, 500, 480, 1, 3, VCLK31_5, /* 75 Hz */ 35 (SyncNN | Charx8Dot), 75, 3, 0x2e }, 36 { 832, 640, 56, 56, 509, 480, 1, 3, VCLK36, /* 85 Hz */ 37 (SyncNN | Charx8Dot), 85, 4, 0x2e }, 38 AST_VBIOS_INVALID_MODE, /* end */ 39 }; 40 41 static const struct ast_vbios_enhtable res_800x600[] = { 42 { 1024, 800, 24, 72, 625, 600, 1, 2, VCLK36, /* 56 Hz */ 43 (SyncPP | Charx8Dot), 56, 1, 0x30 }, 44 { 1056, 800, 40, 128, 628, 600, 1, 4, VCLK40, /* 60 Hz */ 45 (SyncPP | Charx8Dot), 60, 2, 0x30 }, 46 { 1040, 800, 56, 120, 666, 600, 37, 6, VCLK50, /* 72 Hz */ 47 (SyncPP | Charx8Dot), 72, 3, 0x30 }, 48 { 1056, 800, 16, 80, 625, 600, 1, 3, VCLK49_5, /* 75 Hz */ 49 (SyncPP | Charx8Dot), 75, 4, 0x30 }, 50 { 1048, 800, 32, 64, 631, 600, 1, 3, VCLK56_25, /* 85 Hz */ 51 (SyncPP | Charx8Dot), 84, 5, 0x30 }, 52 AST_VBIOS_INVALID_MODE, /* end */ 53 }; 54 55 static const struct ast_vbios_enhtable res_1024x768[] = { 56 { 1344, 1024, 24, 136, 806, 768, 3, 6, VCLK65, /* 60 Hz */ 57 (SyncNN | Charx8Dot), 60, 1, 0x31 }, 58 { 1328, 1024, 24, 136, 806, 768, 3, 6, VCLK75, /* 70 Hz */ 59 (SyncNN | Charx8Dot), 70, 2, 0x31 }, 60 { 1312, 1024, 16, 96, 800, 768, 1, 3, VCLK78_75, /* 75 Hz */ 61 (SyncPP | Charx8Dot), 75, 3, 0x31 }, 62 { 1376, 1024, 48, 96, 808, 768, 1, 3, VCLK94_5, /* 85 Hz */ 63 (SyncPP | Charx8Dot), 84, 4, 0x31 }, 64 AST_VBIOS_INVALID_MODE, /* end */ 65 }; 66 67 static const struct ast_vbios_enhtable res_1152x864[] = { 68 { 1600, 1152, 64, 128, 900, 864, 1, 3, VCLK108, /* 75 Hz */ 69 (SyncPP | Charx8Dot | NewModeInfo), 75, 1, 0x3b }, 70 AST_VBIOS_INVALID_MODE, /* end */ 71 }; 72 73 static const struct ast_vbios_enhtable res_1280x1024[] = { 74 { 1688, 1280, 48, 112, 1066, 1024, 1, 3, VCLK108, /* 60 Hz */ 75 (SyncPP | Charx8Dot), 60, 1, 0x32 }, 76 { 1688, 1280, 16, 144, 1066, 1024, 1, 3, VCLK135, /* 75 Hz */ 77 (SyncPP | Charx8Dot), 75, 2, 0x32 }, 78 { 1728, 1280, 64, 160, 1072, 1024, 1, 3, VCLK157_5, /* 85 Hz */ 79 (SyncPP | Charx8Dot), 85, 3, 0x32 }, 80 AST_VBIOS_INVALID_MODE, /* end */ 81 }; 82 83 static const struct ast_vbios_enhtable res_1600x1200[] = { 84 { 2160, 1600, 64, 192, 1250, 1200, 1, 3, VCLK162, /* 60 Hz */ 85 (SyncPP | Charx8Dot), 60, 1, 0x33 }, 86 AST_VBIOS_INVALID_MODE, /* end */ 87 }; 88 89 /* 16:9 */ 90 91 static const struct ast_vbios_enhtable res_1360x768[] = { 92 { 1792, 1360, 64, 112, 795, 768, 3, 6, VCLK85_5, /* 60 Hz */ 93 (SyncPP | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 60, 1, 0x39 }, 94 AST_VBIOS_INVALID_MODE, /* end */ 95 }; 96 97 static const struct ast_vbios_enhtable res_1600x900[] = { 98 { 1760, 1600, 48, 32, 926, 900, 3, 5, VCLK97_75, /* 60 Hz CVT RB */ 99 (SyncNP | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo | 100 AST2500PreCatchCRT), 60, 1, 0x3a }, 101 { 2112, 1600, 88, 168, 934, 900, 3, 5, VCLK118_25, /* 60 Hz CVT */ 102 (SyncPN | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 60, 2, 0x3a }, 103 AST_VBIOS_INVALID_MODE, /* end */ 104 }; 105 106 static const struct ast_vbios_enhtable res_1920x1080[] = { 107 { 2200, 1920, 88, 44, 1125, 1080, 4, 5, VCLK148_5, /* 60 Hz */ 108 (SyncPP | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo | 109 AST2500PreCatchCRT), 60, 1, 0x38 }, 110 AST_VBIOS_INVALID_MODE, /* end */ 111 }; 112 113 /* 16:10 */ 114 115 static const struct ast_vbios_enhtable res_1280x800[] = { 116 { 1440, 1280, 48, 32, 823, 800, 3, 6, VCLK71, /* 60 Hz RB */ 117 (SyncNP | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo | 118 AST2500PreCatchCRT), 60, 1, 0x35 }, 119 { 1680, 1280, 72, 128, 831, 800, 3, 6, VCLK83_5, /* 60 Hz */ 120 (SyncPN | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 60, 2, 0x35 }, 121 AST_VBIOS_INVALID_MODE, /* end */ 122 }; 123 124 static const struct ast_vbios_enhtable res_1440x900[] = { 125 { 1600, 1440, 48, 32, 926, 900, 3, 6, VCLK88_75, /* 60 Hz RB */ 126 (SyncNP | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo | 127 AST2500PreCatchCRT), 60, 1, 0x36 }, 128 { 1904, 1440, 80, 152, 934, 900, 3, 6, VCLK106_5, /* 60 Hz */ 129 (SyncPN | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 60, 2, 0x36 }, 130 AST_VBIOS_INVALID_MODE, /* end */ 131 }; 132 133 static const struct ast_vbios_enhtable res_1680x1050[] = { 134 { 1840, 1680, 48, 32, 1080, 1050, 3, 6, VCLK119, /* 60 Hz RB */ 135 (SyncNP | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo | 136 AST2500PreCatchCRT), 60, 1, 0x37 }, 137 { 2240, 1680, 104, 176, 1089, 1050, 3, 6, VCLK146_25, /* 60 Hz */ 138 (SyncPN | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 60, 2, 0x37 }, 139 AST_VBIOS_INVALID_MODE, /* end */ 140 }; 141 142 static const struct ast_vbios_enhtable res_1920x1200[] = { 143 { 2080, 1920, 48, 32, 1235, 1200, 3, 6, VCLK154, /* 60 Hz RB*/ 144 (SyncNP | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo | 145 AST2500PreCatchCRT), 60, 1, 0x34 }, 146 AST_VBIOS_INVALID_MODE, /* end */ 147 }; 148 149 /* 150 * VBIOS mode tables 151 */ 152 153 static const struct ast_vbios_enhtable *res_table_wuxga[] = { 154 &res_1920x1200[0], 155 NULL, 156 }; 157 158 static const struct ast_vbios_enhtable *res_table_fullhd[] = { 159 &res_1920x1080[0], 160 NULL, 161 }; 162 163 static const struct ast_vbios_enhtable *res_table_wsxga_p[] = { 164 &res_1280x800[0], 165 &res_1360x768[0], 166 &res_1440x900[0], 167 &res_1600x900[0], 168 &res_1680x1050[0], 169 NULL, 170 }; 171 172 static const struct ast_vbios_enhtable *res_table[] = { 173 &res_640x480[0], 174 &res_800x600[0], 175 &res_1024x768[0], 176 &res_1152x864[0], 177 &res_1280x1024[0], 178 &res_1600x1200[0], 179 NULL, 180 }; 181 182 static const struct ast_vbios_enhtable * 183 __ast_vbios_find_mode_table(const struct ast_vbios_enhtable **vmode_tables, 184 unsigned int hdisplay, 185 unsigned int vdisplay) 186 { 187 while (*vmode_tables) { 188 if ((*vmode_tables)->hde == hdisplay && (*vmode_tables)->vde == vdisplay) 189 return *vmode_tables; 190 ++vmode_tables; 191 } 192 193 return NULL; 194 } 195 196 static const struct ast_vbios_enhtable *ast_vbios_find_mode_table(const struct ast_device *ast, 197 unsigned int hdisplay, 198 unsigned int vdisplay) 199 { 200 const struct ast_vbios_enhtable *vmode_table = NULL; 201 202 if (ast->support_wuxga) 203 vmode_table = __ast_vbios_find_mode_table(res_table_wuxga, hdisplay, vdisplay); 204 if (!vmode_table && ast->support_fullhd) 205 vmode_table = __ast_vbios_find_mode_table(res_table_fullhd, hdisplay, vdisplay); 206 if (!vmode_table && ast->support_wsxga_p) 207 vmode_table = __ast_vbios_find_mode_table(res_table_wsxga_p, hdisplay, vdisplay); 208 if (!vmode_table) 209 vmode_table = __ast_vbios_find_mode_table(res_table, hdisplay, vdisplay); 210 211 return vmode_table; 212 } 213 214 const struct ast_vbios_enhtable *ast_vbios_find_mode(const struct ast_device *ast, 215 const struct drm_display_mode *mode) 216 { 217 const struct ast_vbios_enhtable *best_vmode = NULL; 218 const struct ast_vbios_enhtable *vmode_table; 219 const struct ast_vbios_enhtable *vmode; 220 u32 refresh_rate; 221 222 vmode_table = ast_vbios_find_mode_table(ast, mode->hdisplay, mode->vdisplay); 223 if (!vmode_table) 224 return NULL; 225 226 refresh_rate = drm_mode_vrefresh(mode); 227 228 for (vmode = vmode_table; ast_vbios_mode_is_valid(vmode); ++vmode) { 229 if (((mode->flags & DRM_MODE_FLAG_NVSYNC) && (vmode->flags & PVSync)) || 230 ((mode->flags & DRM_MODE_FLAG_PVSYNC) && (vmode->flags & NVSync)) || 231 ((mode->flags & DRM_MODE_FLAG_NHSYNC) && (vmode->flags & PHSync)) || 232 ((mode->flags & DRM_MODE_FLAG_PHSYNC) && (vmode->flags & NHSync))) { 233 continue; 234 } 235 if (vmode->refresh_rate <= refresh_rate && 236 (!best_vmode || vmode->refresh_rate > best_vmode->refresh_rate)) 237 best_vmode = vmode; 238 } 239 240 return best_vmode; 241 } 242