static void mrst_lvds_mode_set(struct drm_encoder *encoder,
struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
{
struct psb_intel_mode_device *mode_dev =
enc_to_psb_intel_output(encoder)->mode_dev;
struct drm_device *dev = encoder->dev;
struct drm_psb_private *dev_priv = dev->dev_private;
u32 lvds_port;
uint64_t v = DRM_MODE_SCALE_FULLSCREEN;
if (!gma_power_begin(dev, true))
return;
/*
* The LVDS pin pair will already have been turned on in the
* psb_intel_crtc_mode_set since it has a large impact on the DPLL
* settings.
*/
lvds_port = (REG_READ(LVDS) &
(~LVDS_PIPEB_SELECT)) |
LVDS_PORT_EN |
LVDS_BORDER_EN;
/* If the firmware says dither on Moorestown, or the BIOS does
on Oaktrail then enable dithering */
if (mode_dev->panel_wants_dither || dev_priv->lvds_dither)
lvds_port |= MRST_PANEL_8TO6_DITHER_ENABLE;
REG_WRITE(LVDS, lvds_port);
drm_connector_property_get_value(
&enc_to_psb_intel_output(encoder)->base,
dev->mode_config.scaling_mode_property,
&v);
if (v == DRM_MODE_SCALE_NO_SCALE)
REG_WRITE(PFIT_CONTROL, 0);
else if (v == DRM_MODE_SCALE_ASPECT) {
if ((mode->vdisplay != adjusted_mode->crtc_vdisplay) ||
(mode->hdisplay != adjusted_mode->crtc_hdisplay)) {
if ((adjusted_mode->crtc_hdisplay * mode->vdisplay) ==
(mode->hdisplay * adjusted_mode->crtc_vdisplay))
REG_WRITE(PFIT_CONTROL, PFIT_ENABLE);
else if ((adjusted_mode->crtc_hdisplay *
mode->vdisplay) > (mode->hdisplay *
adjusted_mode->crtc_vdisplay))
REG_WRITE(PFIT_CONTROL, PFIT_ENABLE |
PFIT_SCALING_MODE_PILLARBOX);
else
REG_WRITE(PFIT_CONTROL, PFIT_ENABLE |
PFIT_SCALING_MODE_LETTERBOX);
} else
REG_WRITE(PFIT_CONTROL, PFIT_ENABLE);
} else /*(v == DRM_MODE_SCALE_FULLSCREEN)*/
REG_WRITE(PFIT_CONTROL, PFIT_ENABLE);
gma_power_end(dev);
}
static int cdv_hdmi_set_property(struct drm_connector *connector,
struct drm_property *property,
uint64_t value)
{
struct drm_encoder *encoder = connector->encoder;
if (!strcmp(property->name, "scaling mode") && encoder) {
struct psb_intel_crtc *crtc = to_psb_intel_crtc(encoder->crtc);
bool centre;
uint64_t curValue;
if (!crtc)
return -1;
switch (value) {
case DRM_MODE_SCALE_FULLSCREEN:
break;
case DRM_MODE_SCALE_NO_SCALE:
break;
case DRM_MODE_SCALE_ASPECT:
break;
default:
return -1;
}
if (drm_connector_property_get_value(connector,
property, &curValue))
return -1;
if (curValue == value)
return 0;
if (drm_connector_property_set_value(connector,
property, value))
return -1;
centre = (curValue == DRM_MODE_SCALE_NO_SCALE) ||
(value == DRM_MODE_SCALE_NO_SCALE);
if (crtc->saved_mode.hdisplay != 0 &&
crtc->saved_mode.vdisplay != 0) {
if (centre) {
if (!drm_crtc_helper_set_mode(encoder->crtc, &crtc->saved_mode,
encoder->crtc->x, encoder->crtc->y, encoder->crtc->fb))
return -1;
} else {
struct drm_encoder_helper_funcs *helpers
= encoder->helper_private;
helpers->mode_set(encoder, &crtc->saved_mode,
&crtc->saved_adjusted_mode);
}
}
}
return 0;
}
