struct intel_lvds_encoder {
struct intel_encoder base;
- u32 pfit_control;
- u32 pfit_pgm_ratios;
bool is_dual_link;
u32 reg;
I915_WRITE(lvds_encoder->reg, temp);
}
-static void intel_pre_enable_lvds(struct intel_encoder *encoder)
-{
- struct drm_device *dev = encoder->base.dev;
- struct intel_lvds_encoder *enc = to_lvds_encoder(&encoder->base);
- struct drm_i915_private *dev_priv = dev->dev_private;
-
- if (HAS_PCH_SPLIT(dev) || !enc->pfit_control)
- return;
-
- WARN_ON(I915_READ(PFIT_CONTROL) & PFIT_ENABLE);
- assert_pipe_disabled(dev_priv, to_intel_crtc(encoder->base.crtc)->pipe);
-
- /*
- * Enable automatic panel scaling so that non-native modes
- * fill the screen. The panel fitter should only be
- * adjusted whilst the pipe is disabled, according to
- * register description and PRM.
- */
- DRM_DEBUG_KMS("applying panel-fitter: %x, %x\n",
- enc->pfit_control,
- enc->pfit_pgm_ratios);
-
- I915_WRITE(PFIT_PGM_RATIOS, enc->pfit_pgm_ratios);
- I915_WRITE(PFIT_CONTROL, enc->pfit_control);
-}
-
/**
* Sets the power state for the panel.
*/
return MODE_OK;
}
-static void
-centre_horizontally(struct drm_display_mode *mode,
- int width)
-{
- u32 border, sync_pos, blank_width, sync_width;
-
- /* keep the hsync and hblank widths constant */
- sync_width = mode->crtc_hsync_end - mode->crtc_hsync_start;
- blank_width = mode->crtc_hblank_end - mode->crtc_hblank_start;
- sync_pos = (blank_width - sync_width + 1) / 2;
-
- border = (mode->hdisplay - width + 1) / 2;
- border += border & 1; /* make the border even */
-
- mode->crtc_hdisplay = width;
- mode->crtc_hblank_start = width + border;
- mode->crtc_hblank_end = mode->crtc_hblank_start + blank_width;
-
- mode->crtc_hsync_start = mode->crtc_hblank_start + sync_pos;
- mode->crtc_hsync_end = mode->crtc_hsync_start + sync_width;
-}
-
-static void
-centre_vertically(struct drm_display_mode *mode,
- int height)
-{
- u32 border, sync_pos, blank_width, sync_width;
-
- /* keep the vsync and vblank widths constant */
- sync_width = mode->crtc_vsync_end - mode->crtc_vsync_start;
- blank_width = mode->crtc_vblank_end - mode->crtc_vblank_start;
- sync_pos = (blank_width - sync_width + 1) / 2;
-
- border = (mode->vdisplay - height + 1) / 2;
-
- mode->crtc_vdisplay = height;
- mode->crtc_vblank_start = height + border;
- mode->crtc_vblank_end = mode->crtc_vblank_start + blank_width;
-
- mode->crtc_vsync_start = mode->crtc_vblank_start + sync_pos;
- mode->crtc_vsync_end = mode->crtc_vsync_start + sync_width;
-}
-
-static inline u32 panel_fitter_scaling(u32 source, u32 target)
-{
- /*
- * Floating point operation is not supported. So the FACTOR
- * is defined, which can avoid the floating point computation
- * when calculating the panel ratio.
- */
-#define ACCURACY 12
-#define FACTOR (1 << ACCURACY)
- u32 ratio = source * FACTOR / target;
- return (FACTOR * ratio + FACTOR/2) / FACTOR;
-}
-
static bool intel_lvds_compute_config(struct intel_encoder *intel_encoder,
struct intel_crtc_config *pipe_config)
{
struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode;
struct drm_display_mode *mode = &pipe_config->requested_mode;
struct intel_crtc *intel_crtc = lvds_encoder->base.new_crtc;
- u32 pfit_control = 0, pfit_pgm_ratios = 0, border = 0;
unsigned int lvds_bpp;
int pipe;
DRM_DEBUG_KMS("forcing display bpp (was %d) to LVDS (%d)\n",
pipe_config->pipe_bpp, lvds_bpp);
pipe_config->pipe_bpp = lvds_bpp;
-
- /* Make sure pre-965 set dither correctly for 18bpp panels. */
- if (INTEL_INFO(dev)->gen < 4 && lvds_bpp == 18)
- pfit_control |= PANEL_8TO6_DITHER_ENABLE;
-
}
/*
intel_connector->panel.fitting_mode,
mode, adjusted_mode);
return true;
+ } else {
+ intel_gmch_panel_fitting(intel_crtc, pipe_config,
+ intel_connector->panel.fitting_mode);
}
- /* Native modes don't need fitting */
- if (adjusted_mode->hdisplay == mode->hdisplay &&
- adjusted_mode->vdisplay == mode->vdisplay)
- goto out;
-
- /* 965+ wants fuzzy fitting */
- if (INTEL_INFO(dev)->gen >= 4)
- pfit_control |= ((intel_crtc->pipe << PFIT_PIPE_SHIFT) |
- PFIT_FILTER_FUZZY);
-
/*
* Enable automatic panel scaling for non-native modes so that they fill
* the screen. Should be enabled before the pipe is enabled, according
drm_mode_set_crtcinfo(adjusted_mode, 0);
pipe_config->timings_set = true;
- switch (intel_connector->panel.fitting_mode) {
- case DRM_MODE_SCALE_CENTER:
- /*
- * For centered modes, we have to calculate border widths &
- * heights and modify the values programmed into the CRTC.
- */
- centre_horizontally(adjusted_mode, mode->hdisplay);
- centre_vertically(adjusted_mode, mode->vdisplay);
- border = LVDS_BORDER_ENABLE;
- break;
-
- case DRM_MODE_SCALE_ASPECT:
- /* Scale but preserve the aspect ratio */
- if (INTEL_INFO(dev)->gen >= 4) {
- u32 scaled_width = adjusted_mode->hdisplay * mode->vdisplay;
- u32 scaled_height = mode->hdisplay * adjusted_mode->vdisplay;
-
- /* 965+ is easy, it does everything in hw */
- if (scaled_width > scaled_height)
- pfit_control |= PFIT_ENABLE | PFIT_SCALING_PILLAR;
- else if (scaled_width < scaled_height)
- pfit_control |= PFIT_ENABLE | PFIT_SCALING_LETTER;
- else if (adjusted_mode->hdisplay != mode->hdisplay)
- pfit_control |= PFIT_ENABLE | PFIT_SCALING_AUTO;
- } else {
- u32 scaled_width = adjusted_mode->hdisplay * mode->vdisplay;
- u32 scaled_height = mode->hdisplay * adjusted_mode->vdisplay;
- /*
- * For earlier chips we have to calculate the scaling
- * ratio by hand and program it into the
- * PFIT_PGM_RATIO register
- */
- if (scaled_width > scaled_height) { /* pillar */
- centre_horizontally(adjusted_mode, scaled_height / mode->vdisplay);
-
- border = LVDS_BORDER_ENABLE;
- if (mode->vdisplay != adjusted_mode->vdisplay) {
- u32 bits = panel_fitter_scaling(mode->vdisplay, adjusted_mode->vdisplay);
- pfit_pgm_ratios |= (bits << PFIT_HORIZ_SCALE_SHIFT |
- bits << PFIT_VERT_SCALE_SHIFT);
- pfit_control |= (PFIT_ENABLE |
- VERT_INTERP_BILINEAR |
- HORIZ_INTERP_BILINEAR);
- }
- } else if (scaled_width < scaled_height) { /* letter */
- centre_vertically(adjusted_mode, scaled_width / mode->hdisplay);
-
- border = LVDS_BORDER_ENABLE;
- if (mode->hdisplay != adjusted_mode->hdisplay) {
- u32 bits = panel_fitter_scaling(mode->hdisplay, adjusted_mode->hdisplay);
- pfit_pgm_ratios |= (bits << PFIT_HORIZ_SCALE_SHIFT |
- bits << PFIT_VERT_SCALE_SHIFT);
- pfit_control |= (PFIT_ENABLE |
- VERT_INTERP_BILINEAR |
- HORIZ_INTERP_BILINEAR);
- }
- } else
- /* Aspects match, Let hw scale both directions */
- pfit_control |= (PFIT_ENABLE |
- VERT_AUTO_SCALE | HORIZ_AUTO_SCALE |
- VERT_INTERP_BILINEAR |
- HORIZ_INTERP_BILINEAR);
- }
- break;
-
- case DRM_MODE_SCALE_FULLSCREEN:
- /*
- * Full scaling, even if it changes the aspect ratio.
- * Fortunately this is all done for us in hw.
- */
- if (mode->vdisplay != adjusted_mode->vdisplay ||
- mode->hdisplay != adjusted_mode->hdisplay) {
- pfit_control |= PFIT_ENABLE;
- if (INTEL_INFO(dev)->gen >= 4)
- pfit_control |= PFIT_SCALING_AUTO;
- else
- pfit_control |= (VERT_AUTO_SCALE |
- VERT_INTERP_BILINEAR |
- HORIZ_AUTO_SCALE |
- HORIZ_INTERP_BILINEAR);
- }
- break;
-
- default:
- break;
- }
-
-out:
- /* If not enabling scaling, be consistent and always use 0. */
- if ((pfit_control & PFIT_ENABLE) == 0) {
- pfit_control = 0;
- pfit_pgm_ratios = 0;
- }
-
- if (pfit_control != lvds_encoder->pfit_control ||
- pfit_pgm_ratios != lvds_encoder->pfit_pgm_ratios) {
- lvds_encoder->pfit_control = pfit_control;
- lvds_encoder->pfit_pgm_ratios = pfit_pgm_ratios;
- }
- dev_priv->lvds_border_bits = border;
-
/*
* XXX: It would be nice to support lower refresh rates on the
* panels to reduce power consumption, and perhaps match the
lvds_encoder->attached_connector = lvds_connector;
- if (!HAS_PCH_SPLIT(dev)) {
- lvds_encoder->pfit_control = I915_READ(PFIT_CONTROL);
- }
-
intel_encoder = &lvds_encoder->base;
encoder = &intel_encoder->base;
intel_connector = &lvds_connector->base;
DRM_MODE_ENCODER_LVDS);
intel_encoder->enable = intel_enable_lvds;
- intel_encoder->pre_enable = intel_pre_enable_lvds;
intel_encoder->pre_pll_enable = intel_pre_pll_enable_lvds;
intel_encoder->compute_config = intel_lvds_compute_config;
intel_encoder->disable = intel_disable_lvds;
projects / GitHub / LineageOS / android_kernel_motorola_exynos9610.git / blobdiff