static void omap_plane_pre_apply(struct omap_drm_apply *apply) { struct omap_plane *omap_plane = container_of(apply, struct omap_plane, apply); struct omap_drm_window *win = &omap_plane->win; struct drm_plane *plane = &omap_plane->base; struct drm_device *dev = plane->dev; struct omap_overlay_info *info = &omap_plane->info; struct drm_crtc *crtc = plane->crtc; enum omap_channel channel; bool enabled = omap_plane->enabled && crtc; bool ilace, replication; u32 low, high; int ret; DBG("%s, enabled=%d", omap_plane->name, enabled); /* if fb has changed, pin new fb: */ update_pin(plane, enabled ? plane->fb : NULL); if (!enabled) { dispc_ovl_enable(omap_plane->id, false); return; } channel = omap_crtc_channel(crtc); /* update scanout: */ omap_framebuffer_update_scanout(plane->fb, win, info); DBG("%dx%d -> %dx%d (%d)", info->width, info->height, info->out_width, info->out_height, info->screen_width); DBG("%d,%d %pad %pad", info->pos_x, info->pos_y, &info->paddr, &info->p_uv_addr); /* TODO: */ ilace = false; replication = false; dispc_ovl_compute_fifo_thresholds(omap_plane->id, &low, &high, false, false); dispc_ovl_set_fifo_threshold(omap_plane->id, low, high); /* and finally, update omapdss: */ ret = dispc_ovl_setup(omap_plane->id, info, replication, omap_crtc_timings(crtc), false); if (ret) { dev_err(dev->dev, "dispc_ovl_setup failed: %d\n", ret); return; } dispc_ovl_enable(omap_plane->id, true); dispc_ovl_set_channel_out(omap_plane->id, channel); }
static bool channel_used(struct drm_device *dev, enum omap_channel channel) { struct omap_drm_private *priv = dev->dev_private; int i; for (i = 0; i < priv->num_crtcs; i++) { struct drm_crtc *crtc = priv->crtcs[i]; if (omap_crtc_channel(crtc) == channel) return true; } return false; }
static void omap_plane_atomic_update(struct drm_plane *plane, struct drm_plane_state *old_state) { struct omap_drm_private *priv = plane->dev->dev_private; struct omap_plane *omap_plane = to_omap_plane(plane); struct drm_plane_state *state = plane->state; struct omap_overlay_info info; int ret; DBG("%s, crtc=%p fb=%p", omap_plane->name, state->crtc, state->fb); memset(&info, 0, sizeof(info)); info.rotation_type = OMAP_DSS_ROT_NONE; info.rotation = DRM_MODE_ROTATE_0; info.global_alpha = 0xff; info.zorder = state->normalized_zpos; /* update scanout: */ omap_framebuffer_update_scanout(state->fb, state, &info); DBG("%dx%d -> %dx%d (%d)", info.width, info.height, info.out_width, info.out_height, info.screen_width); DBG("%d,%d %pad %pad", info.pos_x, info.pos_y, &info.paddr, &info.p_uv_addr); /* and finally, update omapdss: */ ret = priv->dispc_ops->ovl_setup(priv->dispc, omap_plane->id, &info, omap_crtc_timings(state->crtc), false, omap_crtc_channel(state->crtc)); if (ret) { dev_err(plane->dev->dev, "Failed to setup plane %s\n", omap_plane->name); priv->dispc_ops->ovl_enable(priv->dispc, omap_plane->id, false); return; } priv->dispc_ops->ovl_enable(priv->dispc, omap_plane->id, true); }
static int omap_modeset_init(struct drm_device *dev) { struct omap_drm_private *priv = dev->dev_private; struct omap_dss_device *dssdev = NULL; int num_ovls = dss_feat_get_num_ovls(); int num_mgrs = dss_feat_get_num_mgrs(); int num_crtcs; int i, id = 0; drm_mode_config_init(dev); omap_drm_irq_install(dev); /* * We usually don't want to create a CRTC for each manager, at least * not until we have a way to expose private planes to userspace. * Otherwise there would not be enough video pipes left for drm planes. * We use the num_crtc argument to limit the number of crtcs we create. */ num_crtcs = min3(num_crtc, num_mgrs, num_ovls); dssdev = NULL; for_each_dss_dev(dssdev) { struct drm_connector *connector; struct drm_encoder *encoder; enum omap_channel channel; struct omap_overlay_manager *mgr; if (!omapdss_device_is_connected(dssdev)) continue; encoder = omap_encoder_init(dev, dssdev); if (!encoder) { dev_err(dev->dev, "could not create encoder: %s\n", dssdev->name); return -ENOMEM; } connector = omap_connector_init(dev, get_connector_type(dssdev), dssdev, encoder); if (!connector) { dev_err(dev->dev, "could not create connector: %s\n", dssdev->name); return -ENOMEM; } BUG_ON(priv->num_encoders >= ARRAY_SIZE(priv->encoders)); BUG_ON(priv->num_connectors >= ARRAY_SIZE(priv->connectors)); priv->encoders[priv->num_encoders++] = encoder; priv->connectors[priv->num_connectors++] = connector; drm_mode_connector_attach_encoder(connector, encoder); /* * if we have reached the limit of the crtcs we are allowed to * create, let's not try to look for a crtc for this * panel/encoder and onwards, we will, of course, populate the * the possible_crtcs field for all the encoders with the final * set of crtcs we create */ if (id == num_crtcs) continue; /* * get the recommended DISPC channel for this encoder. For now, * we only try to get create a crtc out of the recommended, the * other possible channels to which the encoder can connect are * not considered. */ mgr = omapdss_find_mgr_from_display(dssdev); channel = mgr->id; /* * if this channel hasn't already been taken by a previously * allocated crtc, we create a new crtc for it */ if (!channel_used(dev, channel)) { struct drm_plane *plane; struct drm_crtc *crtc; plane = omap_plane_init(dev, id, true); crtc = omap_crtc_init(dev, plane, channel, id); BUG_ON(priv->num_crtcs >= ARRAY_SIZE(priv->crtcs)); priv->crtcs[id] = crtc; priv->num_crtcs++; priv->planes[id] = plane; priv->num_planes++; id++; } } /* * we have allocated crtcs according to the need of the panels/encoders, * adding more crtcs here if needed */ for (; id < num_crtcs; id++) { /* find a free manager for this crtc */ for (i = 0; i < num_mgrs; i++) { if (!channel_used(dev, i)) { struct drm_plane *plane; struct drm_crtc *crtc; plane = omap_plane_init(dev, id, true); crtc = omap_crtc_init(dev, plane, i, id); BUG_ON(priv->num_crtcs >= ARRAY_SIZE(priv->crtcs)); priv->crtcs[id] = crtc; priv->num_crtcs++; priv->planes[id] = plane; priv->num_planes++; break; } else { continue; } } if (i == num_mgrs) { /* this shouldn't really happen */ dev_err(dev->dev, "no managers left for crtc\n"); return -ENOMEM; } } /* * Create normal planes for the remaining overlays: */ for (; id < num_ovls; id++) { struct drm_plane *plane = omap_plane_init(dev, id, false); BUG_ON(priv->num_planes >= ARRAY_SIZE(priv->planes)); priv->planes[priv->num_planes++] = plane; } for (i = 0; i < priv->num_encoders; i++) { struct drm_encoder *encoder = priv->encoders[i]; struct omap_dss_device *dssdev = omap_encoder_get_dssdev(encoder); struct omap_dss_device *output; output = omapdss_find_output_from_display(dssdev); /* figure out which crtc's we can connect the encoder to: */ encoder->possible_crtcs = 0; for (id = 0; id < priv->num_crtcs; id++) { struct drm_crtc *crtc = priv->crtcs[id]; enum omap_channel crtc_channel; crtc_channel = omap_crtc_channel(crtc); if (output->dispc_channel == crtc_channel) { encoder->possible_crtcs |= (1 << id); break; } } omap_dss_put_device(output); } DBG("registered %d planes, %d crtcs, %d encoders and %d connectors\n", priv->num_planes, priv->num_crtcs, priv->num_encoders, priv->num_connectors); dev->mode_config.min_width = 32; dev->mode_config.min_height = 32; /* note: eventually will need some cpu_is_omapXYZ() type stuff here * to fill in these limits properly on different OMAP generations.. */ dev->mode_config.max_width = 2048; dev->mode_config.max_height = 2048; dev->mode_config.funcs = &omap_mode_config_funcs; return 0; }