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// 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;
}
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