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OMAP: DSS2: Clean up DISPC color mode validation checks

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The supported set of color modes varies for different DISPC pipelines(plane)
and omap version. This makes the checks for validation of a color mode more
complicated as new omap versions are added.

A dss_feature function is created which tells if a color_mode is supported
for a plane on the current omap revision.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
This commit is contained in:
Archit Taneja 2010-11-25 17:58:10 +05:30 committed by Tomi Valkeinen
parent ac1427e13b
commit 8dad2ab672
3 changed files with 14 additions and 48 deletions
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53
drivers/video/omap2/dss/dispc.c
View File

@ -1550,29 +1550,12 @@ static int _dispc_setup_plane(enum omap_plane plane,
height, pos_y, out_height);
}
if (!dss_feat_color_mode_supported(plane, color_mode))
return -EINVAL;
if (plane == OMAP_DSS_GFX) {
if (width != out_width || height != out_height)
return -EINVAL;
switch (color_mode) {
case OMAP_DSS_COLOR_ARGB16:
case OMAP_DSS_COLOR_ARGB32:
case OMAP_DSS_COLOR_RGBA32:
if (!dss_has_feature(FEAT_GLOBAL_ALPHA))
return -EINVAL;
case OMAP_DSS_COLOR_RGBX32:
if (cpu_is_omap24xx())
return -EINVAL;
/* fall through */
case OMAP_DSS_COLOR_RGB12U:
case OMAP_DSS_COLOR_RGB16:
case OMAP_DSS_COLOR_RGB24P:
case OMAP_DSS_COLOR_RGB24U:
break;
default:
return -EINVAL;
}
} else {
/* video plane */
@ -1586,35 +1569,9 @@ static int _dispc_setup_plane(enum omap_plane plane,
out_height > height * 8)
return -EINVAL;
switch (color_mode) {
case OMAP_DSS_COLOR_RGBX32:
case OMAP_DSS_COLOR_RGB12U:
if (cpu_is_omap24xx())
return -EINVAL;
/* fall through */
case OMAP_DSS_COLOR_RGB16:
case OMAP_DSS_COLOR_RGB24P:
case OMAP_DSS_COLOR_RGB24U:
break;
case OMAP_DSS_COLOR_ARGB16:
case OMAP_DSS_COLOR_ARGB32:
case OMAP_DSS_COLOR_RGBA32:
if (!dss_has_feature(FEAT_GLOBAL_ALPHA))
return -EINVAL;
if (!dss_has_feature(FEAT_GLOBAL_ALPHA_VID1) &&
plane == OMAP_DSS_VIDEO1)
return -EINVAL;
break;
case OMAP_DSS_COLOR_YUV2:
case OMAP_DSS_COLOR_UYVY:
if (color_mode == OMAP_DSS_COLOR_YUV2 ||
color_mode == OMAP_DSS_COLOR_UYVY)
cconv = 1;
break;
default:
return -EINVAL;
}
/* Must use 5-tap filter? */
five_taps = height > out_height * 2;

7
drivers/video/omap2/dss/dss_features.c
View File

@ -179,6 +179,13 @@ enum omap_color_mode dss_feat_get_supported_color_modes(enum omap_plane plane)
return omap_current_dss_features->supported_color_modes[plane];
}
bool dss_feat_color_mode_supported(enum omap_plane plane,
enum omap_color_mode color_mode)
{
return omap_current_dss_features->supported_color_modes[plane] &
color_mode;
}
/* DSS has_feature check */
bool dss_has_feature(enum dss_feat_id id)
{

2
drivers/video/omap2/dss/dss_features.h
View File

@ -44,6 +44,8 @@ int dss_feat_get_num_mgrs(void);
int dss_feat_get_num_ovls(void);
enum omap_display_type dss_feat_get_supported_displays(enum omap_channel channel);
enum omap_color_mode dss_feat_get_supported_color_modes(enum omap_plane plane);
bool dss_feat_color_mode_supported(enum omap_plane plane,
enum omap_color_mode color_mode);
bool dss_has_feature(enum dss_feat_id id);
void dss_feat_get_reg_field(enum dss_feat_reg_field id, u8 *start, u8 *end);