diff options
Diffstat (limited to 'drivers/gpu/drm/ast/ast_vbios.h')
| -rw-r--r-- | drivers/gpu/drm/ast/ast_vbios.h | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/drivers/gpu/drm/ast/ast_vbios.h b/drivers/gpu/drm/ast/ast_vbios.h new file mode 100644 index 000000000000..8cf025010594 --- /dev/null +++ b/drivers/gpu/drm/ast/ast_vbios.h @@ -0,0 +1,108 @@ +/* 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. + */ +/* Ported from xf86-video-ast driver */ + +#ifndef AST_VBIOS_H +#define AST_VBIOS_H + +#include <linux/types.h> + +struct ast_device; +struct drm_display_mode; + +#define Charx8Dot 0x00000001 +#define HalfDCLK 0x00000002 +#define DoubleScanMode 0x00000004 +#define LineCompareOff 0x00000008 +#define HBorder 0x00000020 +#define VBorder 0x00000010 +#define WideScreenMode 0x00000100 +#define NewModeInfo 0x00000200 +#define NHSync 0x00000400 +#define PHSync 0x00000800 +#define NVSync 0x00001000 +#define PVSync 0x00002000 +#define SyncPP (PVSync | PHSync) +#define SyncPN (PVSync | NHSync) +#define SyncNP (NVSync | PHSync) +#define SyncNN (NVSync | NHSync) +#define AST2500PreCatchCRT 0x00004000 + +/* DCLK Index */ +#define VCLK25_175 0x00 +#define VCLK28_322 0x01 +#define VCLK31_5 0x02 +#define VCLK36 0x03 +#define VCLK40 0x04 +#define VCLK49_5 0x05 +#define VCLK50 0x06 +#define VCLK56_25 0x07 +#define VCLK65 0x08 +#define VCLK75 0x09 +#define VCLK78_75 0x0a +#define VCLK94_5 0x0b +#define VCLK108 0x0c +#define VCLK135 0x0d +#define VCLK157_5 0x0e +#define VCLK162 0x0f +/* #define VCLK193_25 0x10 */ +#define VCLK154 0x10 +#define VCLK83_5 0x11 +#define VCLK106_5 0x12 +#define VCLK146_25 0x13 +#define VCLK148_5 0x14 +#define VCLK71 0x15 +#define VCLK88_75 0x16 +#define VCLK119 0x17 +#define VCLK85_5 0x18 +#define VCLK97_75 0x19 +#define VCLK118_25 0x1a + +struct ast_vbios_enhtable { + u32 ht; + u32 hde; + u32 hfp; + u32 hsync; + u32 vt; + u32 vde; + u32 vfp; + u32 vsync; + u32 dclk_index; + u32 flags; + u32 refresh_rate; + u32 refresh_rate_index; + u32 mode_id; +}; + +#define AST_VBIOS_INVALID_MODE \ + {0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u} + +static inline bool ast_vbios_mode_is_valid(const struct ast_vbios_enhtable *vmode) +{ + return vmode->ht && vmode->vt && vmode->refresh_rate; +} + +const struct ast_vbios_enhtable *ast_vbios_find_mode(const struct ast_device *ast, + const struct drm_display_mode *mode); + +#endif |