diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2024-05-03 15:24:25 +0300 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2024-05-08 16:37:54 +0300 |
| commit | 2e8b8073178a898f56e6d1512de016f644306fb5 (patch) | |
| tree | f2476149aefbe9259884f9b268e26d3c2b27520b /drivers/gpu/drm/i915/display/intel_vbt_defs.h | |
| parent | 22794e6cee284c154a464ef6c58219e35739a3fe (diff) | |
| download | linux-2e8b8073178a898f56e6d1512de016f644306fb5.tar.xz | |
drm/i915/bios: Define VBT block 5 (Generic Mode Table)
Define the contents of VBT block 5 (Generic Mode Table).
Details were mostly gleaned from some VBIOS sources.
There are apparently two variants of the block: ALM only
vs. MGM, defined here as bdb_generic_mode_table_alm
and bdb_generic_mode_table_mgm. And those are the only two
platforms where I've seen this block.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240503122449.27266-12-ville.syrjala@linux.intel.com
Acked-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_vbt_defs.h')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_vbt_defs.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_vbt_defs.h b/drivers/gpu/drm/i915/display/intel_vbt_defs.h index a49d84401df1..a38193d158e3 100644 --- a/drivers/gpu/drm/i915/display/intel_vbt_defs.h +++ b/drivers/gpu/drm/i915/display/intel_vbt_defs.h @@ -581,6 +581,60 @@ struct bdb_mode_support_list { } __packed; /* + * Block 5 - Generic Mode Table + */ + +struct generic_mode_table { + u16 x_res; + u16 y_res; + u8 color_depths; + u8 refresh_rate[3]; + u8 reserved; + u8 text_cols; + u8 text_rows; + u8 font_height; + u16 page_size; + u8 misc; +} __packed; + +struct generic_mode_timings { + u32 dotclock_khz; + u16 hdisplay; + u16 htotal; + u16 hblank_start; + u16 hblank_end; + u16 hsync_start; + u16 hsync_end; + u16 vdisplay; + u16 vtotal; + u16 vblank_start; + u16 vblank_end; + u16 vsync_start; + u16 vsync_end; +} __packed; + +struct generic_mode_timings_alm { + struct generic_mode_timings timings; + u8 wm_8bpp; + u8 burst_8bpp; + u8 wm_16bpp; + u8 burst_16bpp; + u8 wm_32bpp; + u8 burst_32bpp; +} __packed; + +struct bdb_generic_mode_table_alm { + struct generic_mode_table table; + struct generic_mode_timings_alm timings[3]; +} __packed; + +struct bdb_generic_mode_table_mgm { + u16 mode_flag; + struct generic_mode_table table; + struct generic_mode_timings timings[3]; +} __packed; + +/* * Block 9 - SRD Feature Block */ |