diff options
Diffstat (limited to 'drivers/gpu/drm/ast/ast_vbios.c')
| -rw-r--r-- | drivers/gpu/drm/ast/ast_vbios.c | 241 |
1 files changed, 241 insertions, 0 deletions
diff --git a/drivers/gpu/drm/ast/ast_vbios.c b/drivers/gpu/drm/ast/ast_vbios.c new file mode 100644 index 000000000000..0953e6dd3976 --- /dev/null +++ b/drivers/gpu/drm/ast/ast_vbios.c @@ -0,0 +1,241 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright (c) 2005 ASPEED Technology Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that + * copyright notice and this permission notice appear in supporting + * documentation, and that the name of the authors not be used in + * advertising or publicity pertaining to distribution of the software without + * specific, written prior permission. The authors makes no representations + * about the suitability of this software for any purpose. It is provided + * "as is" without express or implied warranty. + * + * THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR + * PERFORMANCE OF THIS SOFTWARE. + */ + +#include "ast_drv.h" +#include "ast_vbios.h" + +/* 4:3 */ + +static const struct ast_vbios_enhtable res_640x480[] = { + { 800, 640, 8, 96, 525, 480, 2, 2, VCLK25_175, /* 60 Hz */ + (SyncNN | HBorder | VBorder | Charx8Dot), 60, 1, 0x2e }, + { 832, 640, 16, 40, 520, 480, 1, 3, VCLK31_5, /* 72 Hz */ + (SyncNN | HBorder | VBorder | Charx8Dot), 72, 2, 0x2e }, + { 840, 640, 16, 64, 500, 480, 1, 3, VCLK31_5, /* 75 Hz */ + (SyncNN | Charx8Dot), 75, 3, 0x2e }, + { 832, 640, 56, 56, 509, 480, 1, 3, VCLK36, /* 85 Hz */ + (SyncNN | Charx8Dot), 85, 4, 0x2e }, + AST_VBIOS_INVALID_MODE, /* end */ +}; + +static const struct ast_vbios_enhtable res_800x600[] = { + { 1024, 800, 24, 72, 625, 600, 1, 2, VCLK36, /* 56 Hz */ + (SyncPP | Charx8Dot), 56, 1, 0x30 }, + { 1056, 800, 40, 128, 628, 600, 1, 4, VCLK40, /* 60 Hz */ + (SyncPP | Charx8Dot), 60, 2, 0x30 }, + { 1040, 800, 56, 120, 666, 600, 37, 6, VCLK50, /* 72 Hz */ + (SyncPP | Charx8Dot), 72, 3, 0x30 }, + { 1056, 800, 16, 80, 625, 600, 1, 3, VCLK49_5, /* 75 Hz */ + (SyncPP | Charx8Dot), 75, 4, 0x30 }, + { 1048, 800, 32, 64, 631, 600, 1, 3, VCLK56_25, /* 85 Hz */ + (SyncPP | Charx8Dot), 84, 5, 0x30 }, + AST_VBIOS_INVALID_MODE, /* end */ +}; + +static const struct ast_vbios_enhtable res_1024x768[] = { + { 1344, 1024, 24, 136, 806, 768, 3, 6, VCLK65, /* 60 Hz */ + (SyncNN | Charx8Dot), 60, 1, 0x31 }, + { 1328, 1024, 24, 136, 806, 768, 3, 6, VCLK75, /* 70 Hz */ + (SyncNN | Charx8Dot), 70, 2, 0x31 }, + { 1312, 1024, 16, 96, 800, 768, 1, 3, VCLK78_75, /* 75 Hz */ + (SyncPP | Charx8Dot), 75, 3, 0x31 }, + { 1376, 1024, 48, 96, 808, 768, 1, 3, VCLK94_5, /* 85 Hz */ + (SyncPP | Charx8Dot), 84, 4, 0x31 }, + AST_VBIOS_INVALID_MODE, /* end */ +}; + +static const struct ast_vbios_enhtable res_1152x864[] = { + { 1600, 1152, 64, 128, 900, 864, 1, 3, VCLK108, /* 75 Hz */ + (SyncPP | Charx8Dot | NewModeInfo), 75, 1, 0x3b }, + AST_VBIOS_INVALID_MODE, /* end */ +}; + +static const struct ast_vbios_enhtable res_1280x1024[] = { + { 1688, 1280, 48, 112, 1066, 1024, 1, 3, VCLK108, /* 60 Hz */ + (SyncPP | Charx8Dot), 60, 1, 0x32 }, + { 1688, 1280, 16, 144, 1066, 1024, 1, 3, VCLK135, /* 75 Hz */ + (SyncPP | Charx8Dot), 75, 2, 0x32 }, + { 1728, 1280, 64, 160, 1072, 1024, 1, 3, VCLK157_5, /* 85 Hz */ + (SyncPP | Charx8Dot), 85, 3, 0x32 }, + AST_VBIOS_INVALID_MODE, /* end */ +}; + +static const struct ast_vbios_enhtable res_1600x1200[] = { + { 2160, 1600, 64, 192, 1250, 1200, 1, 3, VCLK162, /* 60 Hz */ + (SyncPP | Charx8Dot), 60, 1, 0x33 }, + AST_VBIOS_INVALID_MODE, /* end */ +}; + +/* 16:9 */ + +static const struct ast_vbios_enhtable res_1360x768[] = { + { 1792, 1360, 64, 112, 795, 768, 3, 6, VCLK85_5, /* 60 Hz */ + (SyncPP | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 60, 1, 0x39 }, + AST_VBIOS_INVALID_MODE, /* end */ +}; + +static const struct ast_vbios_enhtable res_1600x900[] = { + { 1760, 1600, 48, 32, 926, 900, 3, 5, VCLK97_75, /* 60 Hz CVT RB */ + (SyncNP | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo | + AST2500PreCatchCRT), 60, 1, 0x3a }, + { 2112, 1600, 88, 168, 934, 900, 3, 5, VCLK118_25, /* 60 Hz CVT */ + (SyncPN | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 60, 2, 0x3a }, + AST_VBIOS_INVALID_MODE, /* end */ +}; + +static const struct ast_vbios_enhtable res_1920x1080[] = { + { 2200, 1920, 88, 44, 1125, 1080, 4, 5, VCLK148_5, /* 60 Hz */ + (SyncPP | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo | + AST2500PreCatchCRT), 60, 1, 0x38 }, + AST_VBIOS_INVALID_MODE, /* end */ +}; + +/* 16:10 */ + +static const struct ast_vbios_enhtable res_1280x800[] = { + { 1440, 1280, 48, 32, 823, 800, 3, 6, VCLK71, /* 60 Hz RB */ + (SyncNP | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo | + AST2500PreCatchCRT), 60, 1, 0x35 }, + { 1680, 1280, 72, 128, 831, 800, 3, 6, VCLK83_5, /* 60 Hz */ + (SyncPN | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 60, 2, 0x35 }, + AST_VBIOS_INVALID_MODE, /* end */ +}; + +static const struct ast_vbios_enhtable res_1440x900[] = { + { 1600, 1440, 48, 32, 926, 900, 3, 6, VCLK88_75, /* 60 Hz RB */ + (SyncNP | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo | + AST2500PreCatchCRT), 60, 1, 0x36 }, + { 1904, 1440, 80, 152, 934, 900, 3, 6, VCLK106_5, /* 60 Hz */ + (SyncPN | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 60, 2, 0x36 }, + AST_VBIOS_INVALID_MODE, /* end */ +}; + +static const struct ast_vbios_enhtable res_1680x1050[] = { + { 1840, 1680, 48, 32, 1080, 1050, 3, 6, VCLK119, /* 60 Hz RB */ + (SyncNP | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo | + AST2500PreCatchCRT), 60, 1, 0x37 }, + { 2240, 1680, 104, 176, 1089, 1050, 3, 6, VCLK146_25, /* 60 Hz */ + (SyncPN | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo), 60, 2, 0x37 }, + AST_VBIOS_INVALID_MODE, /* end */ +}; + +static const struct ast_vbios_enhtable res_1920x1200[] = { + { 2080, 1920, 48, 32, 1235, 1200, 3, 6, VCLK154, /* 60 Hz RB*/ + (SyncNP | Charx8Dot | LineCompareOff | WideScreenMode | NewModeInfo | + AST2500PreCatchCRT), 60, 1, 0x34 }, + AST_VBIOS_INVALID_MODE, /* end */ +}; + +/* + * VBIOS mode tables + */ + +static const struct ast_vbios_enhtable *res_table_wuxga[] = { + &res_1920x1200[0], + NULL, +}; + +static const struct ast_vbios_enhtable *res_table_fullhd[] = { + &res_1920x1080[0], + NULL, +}; + +static const struct ast_vbios_enhtable *res_table_wsxga_p[] = { + &res_1280x800[0], + &res_1360x768[0], + &res_1440x900[0], + &res_1600x900[0], + &res_1680x1050[0], + NULL, +}; + +static const struct ast_vbios_enhtable *res_table[] = { + &res_640x480[0], + &res_800x600[0], + &res_1024x768[0], + &res_1152x864[0], + &res_1280x1024[0], + &res_1600x1200[0], + NULL, +}; + +static const struct ast_vbios_enhtable * +__ast_vbios_find_mode_table(const struct ast_vbios_enhtable **vmode_tables, + unsigned int hdisplay, + unsigned int vdisplay) +{ + while (*vmode_tables) { + if ((*vmode_tables)->hde == hdisplay && (*vmode_tables)->vde == vdisplay) + return *vmode_tables; + ++vmode_tables; + } + + return NULL; +} + +static const struct ast_vbios_enhtable *ast_vbios_find_mode_table(const struct ast_device *ast, + unsigned int hdisplay, + unsigned int vdisplay) +{ + const struct ast_vbios_enhtable *vmode_table = NULL; + + if (ast->support_wuxga) + vmode_table = __ast_vbios_find_mode_table(res_table_wuxga, hdisplay, vdisplay); + if (!vmode_table && ast->support_fullhd) + vmode_table = __ast_vbios_find_mode_table(res_table_fullhd, hdisplay, vdisplay); + if (!vmode_table && ast->support_wsxga_p) + vmode_table = __ast_vbios_find_mode_table(res_table_wsxga_p, hdisplay, vdisplay); + if (!vmode_table) + vmode_table = __ast_vbios_find_mode_table(res_table, hdisplay, vdisplay); + + return vmode_table; +} + +const struct ast_vbios_enhtable *ast_vbios_find_mode(const struct ast_device *ast, + const struct drm_display_mode *mode) +{ + const struct ast_vbios_enhtable *best_vmode = NULL; + const struct ast_vbios_enhtable *vmode_table; + const struct ast_vbios_enhtable *vmode; + u32 refresh_rate; + + vmode_table = ast_vbios_find_mode_table(ast, mode->hdisplay, mode->vdisplay); + if (!vmode_table) + return NULL; + + refresh_rate = drm_mode_vrefresh(mode); + + for (vmode = vmode_table; ast_vbios_mode_is_valid(vmode); ++vmode) { + if (((mode->flags & DRM_MODE_FLAG_NVSYNC) && (vmode->flags & PVSync)) || + ((mode->flags & DRM_MODE_FLAG_PVSYNC) && (vmode->flags & NVSync)) || + ((mode->flags & DRM_MODE_FLAG_NHSYNC) && (vmode->flags & PHSync)) || + ((mode->flags & DRM_MODE_FLAG_PHSYNC) && (vmode->flags & NHSync))) { + continue; + } + if (vmode->refresh_rate <= refresh_rate && + (!best_vmode || vmode->refresh_rate > best_vmode->refresh_rate)) + best_vmode = vmode; + } + + return best_vmode; +} |