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| author | Alex Deucher <alexdeucher@gmail.com> | 2010-08-03 19:59:20 -0400 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2010-08-04 10:03:50 +1000 |
| commit | 5b1714d386a2f0c0d270e3abe1ac39ad1b0ba010 (patch) | |
| tree | 8992a96ad5edcbc60b44d3541588309d8b866293 /drivers/gpu/drm/radeon/radeon_display.c | |
| parent | d65d65b175a29bd7ea2bb69c046419329c4a5db7 (diff) | |
| download | blackbird-op-linux-5b1714d386a2f0c0d270e3abe1ac39ad1b0ba010.tar.gz blackbird-op-linux-5b1714d386a2f0c0d270e3abe1ac39ad1b0ba010.zip | |
drm/radeon/kms: enable underscan option for digital connectors
This connector attribute allows you to enable or disable underscan
on a digital output to compensate for panels that automatically
overscan (e.g., many HDMI TVs). Valid values for the attribute are:
off - forces underscan off
on - forces underscan on
auto - enables underscan if an HDMI TV is connected, off otherwise
default value is auto.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_display.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_display.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c index 12a54145b64a..74dac9635d70 100644 --- a/drivers/gpu/drm/radeon/radeon_display.c +++ b/drivers/gpu/drm/radeon/radeon_display.c @@ -921,6 +921,12 @@ static struct drm_prop_enum_list radeon_tv_std_enum_list[] = { TV_STD_SECAM, "secam" }, }; +static struct drm_prop_enum_list radeon_underscan_enum_list[] = +{ { UNDERSCAN_OFF, "off" }, + { UNDERSCAN_ON, "on" }, + { UNDERSCAN_AUTO, "auto" }, +}; + static int radeon_modeset_create_props(struct radeon_device *rdev) { int i, sz; @@ -974,6 +980,18 @@ static int radeon_modeset_create_props(struct radeon_device *rdev) radeon_tv_std_enum_list[i].name); } + sz = ARRAY_SIZE(radeon_underscan_enum_list); + rdev->mode_info.underscan_property = + drm_property_create(rdev->ddev, + DRM_MODE_PROP_ENUM, + "underscan", sz); + for (i = 0; i < sz; i++) { + drm_property_add_enum(rdev->mode_info.underscan_property, + i, + radeon_underscan_enum_list[i].type, + radeon_underscan_enum_list[i].name); + } + return 0; } @@ -1069,17 +1087,26 @@ bool radeon_crtc_scaling_mode_fixup(struct drm_crtc *crtc, struct drm_display_mode *adjusted_mode) { struct drm_device *dev = crtc->dev; + struct radeon_device *rdev = dev->dev_private; struct drm_encoder *encoder; struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); struct radeon_encoder *radeon_encoder; + struct drm_connector *connector; + struct radeon_connector *radeon_connector; bool first = true; u32 src_v = 1, dst_v = 1; u32 src_h = 1, dst_h = 1; + radeon_crtc->h_border = 0; + radeon_crtc->v_border = 0; + list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { if (encoder->crtc != crtc) continue; radeon_encoder = to_radeon_encoder(encoder); + connector = radeon_get_connector_for_encoder(encoder); + radeon_connector = to_radeon_connector(connector); + if (first) { /* set scaling */ if (radeon_encoder->rmx_type == RMX_OFF) @@ -1097,6 +1124,20 @@ bool radeon_crtc_scaling_mode_fixup(struct drm_crtc *crtc, memcpy(&radeon_crtc->native_mode, &radeon_encoder->native_mode, sizeof(struct drm_display_mode)); + + /* fix up for overscan on hdmi */ + if (ASIC_IS_AVIVO(rdev) && + ((radeon_encoder->underscan_type == UNDERSCAN_ON) || + ((radeon_encoder->underscan_type == UNDERSCAN_AUTO) && + drm_detect_hdmi_monitor(radeon_connector->edid)))) { + radeon_crtc->h_border = (mode->hdisplay >> 5) + 16; + radeon_crtc->v_border = (mode->vdisplay >> 5) + 16; + radeon_crtc->rmx_type = RMX_FULL; + src_v = crtc->mode.vdisplay; + dst_v = crtc->mode.vdisplay - (radeon_crtc->v_border * 2); + src_h = crtc->mode.hdisplay; + dst_h = crtc->mode.hdisplay - (radeon_crtc->h_border * 2); + } first = false; } else { if (radeon_crtc->rmx_type != radeon_encoder->rmx_type) { |
