![Laurent Pinchart](/assets/img/avatar_default.png)
This removes the need to access the global DISPC private data in those functions (both for the current accesses and the future ones that will be introduced when allocating the DISPC private data dynamically). In order to allow the omapdrm side to call the dispc_ops with a DISPC pointer, we also introduce a new function dss_get_dispc() to retrieve the DISPC corresponding to the DSS. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
309 lines
8.2 KiB
C
309 lines
8.2 KiB
C
/*
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
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* Author: Rob Clark <rob.clark@linaro.org>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <drm/drm_atomic.h>
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#include <drm/drm_atomic_helper.h>
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#include <drm/drm_plane_helper.h>
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#include "omap_dmm_tiler.h"
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#include "omap_drv.h"
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/*
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* plane funcs
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*/
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#define to_omap_plane(x) container_of(x, struct omap_plane, base)
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struct omap_plane {
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struct drm_plane base;
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enum omap_plane_id id;
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const char *name;
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};
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static int omap_plane_prepare_fb(struct drm_plane *plane,
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struct drm_plane_state *new_state)
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{
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if (!new_state->fb)
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return 0;
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return omap_framebuffer_pin(new_state->fb);
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}
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static void omap_plane_cleanup_fb(struct drm_plane *plane,
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struct drm_plane_state *old_state)
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{
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if (old_state->fb)
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omap_framebuffer_unpin(old_state->fb);
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}
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static void omap_plane_atomic_update(struct drm_plane *plane,
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struct drm_plane_state *old_state)
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{
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struct omap_drm_private *priv = plane->dev->dev_private;
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struct omap_plane *omap_plane = to_omap_plane(plane);
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struct drm_plane_state *state = plane->state;
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struct omap_overlay_info info;
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int ret;
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DBG("%s, crtc=%p fb=%p", omap_plane->name, state->crtc, state->fb);
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memset(&info, 0, sizeof(info));
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info.rotation_type = OMAP_DSS_ROT_NONE;
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info.rotation = DRM_MODE_ROTATE_0;
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info.global_alpha = 0xff;
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info.zorder = state->zpos;
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/* update scanout: */
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omap_framebuffer_update_scanout(state->fb, state, &info);
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DBG("%dx%d -> %dx%d (%d)", info.width, info.height,
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info.out_width, info.out_height,
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info.screen_width);
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DBG("%d,%d %pad %pad", info.pos_x, info.pos_y,
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&info.paddr, &info.p_uv_addr);
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/* and finally, update omapdss: */
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ret = priv->dispc_ops->ovl_setup(priv->dispc, omap_plane->id, &info,
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omap_crtc_timings(state->crtc), false,
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omap_crtc_channel(state->crtc));
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if (ret) {
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dev_err(plane->dev->dev, "Failed to setup plane %s\n",
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omap_plane->name);
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priv->dispc_ops->ovl_enable(priv->dispc, omap_plane->id, false);
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return;
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}
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priv->dispc_ops->ovl_enable(priv->dispc, omap_plane->id, true);
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}
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static void omap_plane_atomic_disable(struct drm_plane *plane,
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struct drm_plane_state *old_state)
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{
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struct omap_drm_private *priv = plane->dev->dev_private;
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struct omap_plane *omap_plane = to_omap_plane(plane);
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plane->state->rotation = DRM_MODE_ROTATE_0;
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plane->state->zpos = plane->type == DRM_PLANE_TYPE_PRIMARY
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? 0 : omap_plane->id;
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priv->dispc_ops->ovl_enable(priv->dispc, omap_plane->id, false);
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}
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static int omap_plane_atomic_check(struct drm_plane *plane,
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struct drm_plane_state *state)
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{
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struct drm_crtc_state *crtc_state;
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if (!state->fb)
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return 0;
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/* crtc should only be NULL when disabling (i.e., !state->fb) */
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if (WARN_ON(!state->crtc))
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return 0;
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crtc_state = drm_atomic_get_existing_crtc_state(state->state, state->crtc);
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/* we should have a crtc state if the plane is attached to a crtc */
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if (WARN_ON(!crtc_state))
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return 0;
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if (!crtc_state->enable)
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return 0;
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if (state->crtc_x < 0 || state->crtc_y < 0)
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return -EINVAL;
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if (state->crtc_x + state->crtc_w > crtc_state->adjusted_mode.hdisplay)
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return -EINVAL;
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if (state->crtc_y + state->crtc_h > crtc_state->adjusted_mode.vdisplay)
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return -EINVAL;
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if (state->rotation != DRM_MODE_ROTATE_0 &&
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!omap_framebuffer_supports_rotation(state->fb))
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return -EINVAL;
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return 0;
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}
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static const struct drm_plane_helper_funcs omap_plane_helper_funcs = {
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.prepare_fb = omap_plane_prepare_fb,
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.cleanup_fb = omap_plane_cleanup_fb,
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.atomic_check = omap_plane_atomic_check,
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.atomic_update = omap_plane_atomic_update,
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.atomic_disable = omap_plane_atomic_disable,
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};
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static void omap_plane_destroy(struct drm_plane *plane)
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{
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struct omap_plane *omap_plane = to_omap_plane(plane);
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DBG("%s", omap_plane->name);
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drm_plane_cleanup(plane);
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kfree(omap_plane);
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}
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/* helper to install properties which are common to planes and crtcs */
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void omap_plane_install_properties(struct drm_plane *plane,
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struct drm_mode_object *obj)
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{
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struct drm_device *dev = plane->dev;
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struct omap_drm_private *priv = dev->dev_private;
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if (priv->has_dmm) {
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if (!plane->rotation_property)
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drm_plane_create_rotation_property(plane,
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DRM_MODE_ROTATE_0,
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DRM_MODE_ROTATE_0 | DRM_MODE_ROTATE_90 |
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DRM_MODE_ROTATE_180 | DRM_MODE_ROTATE_270 |
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DRM_MODE_REFLECT_X | DRM_MODE_REFLECT_Y);
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/* Attach the rotation property also to the crtc object */
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if (plane->rotation_property && obj != &plane->base)
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drm_object_attach_property(obj, plane->rotation_property,
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DRM_MODE_ROTATE_0);
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}
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drm_object_attach_property(obj, priv->zorder_prop, 0);
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}
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static void omap_plane_reset(struct drm_plane *plane)
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{
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struct omap_plane *omap_plane = to_omap_plane(plane);
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drm_atomic_helper_plane_reset(plane);
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if (!plane->state)
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return;
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/*
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* Set the zpos default depending on whether we are a primary or overlay
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* plane.
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*/
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plane->state->zpos = plane->type == DRM_PLANE_TYPE_PRIMARY
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? 0 : omap_plane->id;
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}
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static int omap_plane_atomic_set_property(struct drm_plane *plane,
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struct drm_plane_state *state,
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struct drm_property *property,
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u64 val)
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{
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struct omap_drm_private *priv = plane->dev->dev_private;
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if (property == priv->zorder_prop)
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state->zpos = val;
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else
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return -EINVAL;
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return 0;
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}
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static int omap_plane_atomic_get_property(struct drm_plane *plane,
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const struct drm_plane_state *state,
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struct drm_property *property,
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u64 *val)
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{
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struct omap_drm_private *priv = plane->dev->dev_private;
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if (property == priv->zorder_prop)
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*val = state->zpos;
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else
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return -EINVAL;
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return 0;
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}
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static const struct drm_plane_funcs omap_plane_funcs = {
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.update_plane = drm_atomic_helper_update_plane,
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.disable_plane = drm_atomic_helper_disable_plane,
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.reset = omap_plane_reset,
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.destroy = omap_plane_destroy,
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.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
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.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
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.atomic_set_property = omap_plane_atomic_set_property,
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.atomic_get_property = omap_plane_atomic_get_property,
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};
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static const char *plane_id_to_name[] = {
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[OMAP_DSS_GFX] = "gfx",
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[OMAP_DSS_VIDEO1] = "vid1",
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[OMAP_DSS_VIDEO2] = "vid2",
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[OMAP_DSS_VIDEO3] = "vid3",
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};
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static const enum omap_plane_id plane_idx_to_id[] = {
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OMAP_DSS_GFX,
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OMAP_DSS_VIDEO1,
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OMAP_DSS_VIDEO2,
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OMAP_DSS_VIDEO3,
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};
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/* initialize plane */
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struct drm_plane *omap_plane_init(struct drm_device *dev,
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int idx, enum drm_plane_type type,
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u32 possible_crtcs)
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{
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struct omap_drm_private *priv = dev->dev_private;
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unsigned int num_planes = priv->dispc_ops->get_num_ovls(priv->dispc);
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struct drm_plane *plane;
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struct omap_plane *omap_plane;
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enum omap_plane_id id;
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int ret;
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u32 nformats;
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const u32 *formats;
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if (WARN_ON(idx >= ARRAY_SIZE(plane_idx_to_id)))
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return ERR_PTR(-EINVAL);
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id = plane_idx_to_id[idx];
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DBG("%s: type=%d", plane_id_to_name[id], type);
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omap_plane = kzalloc(sizeof(*omap_plane), GFP_KERNEL);
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if (!omap_plane)
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return ERR_PTR(-ENOMEM);
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formats = priv->dispc_ops->ovl_get_color_modes(priv->dispc, id);
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for (nformats = 0; formats[nformats]; ++nformats)
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;
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omap_plane->id = id;
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omap_plane->name = plane_id_to_name[id];
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plane = &omap_plane->base;
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ret = drm_universal_plane_init(dev, plane, possible_crtcs,
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&omap_plane_funcs, formats,
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nformats, NULL, type, NULL);
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if (ret < 0)
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goto error;
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drm_plane_helper_add(plane, &omap_plane_helper_funcs);
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omap_plane_install_properties(plane, &plane->base);
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drm_plane_create_zpos_property(plane, 0, 0, num_planes - 1);
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return plane;
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error:
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dev_err(dev->dev, "%s(): could not create plane: %s\n",
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__func__, plane_id_to_name[id]);
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kfree(omap_plane);
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return NULL;
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}
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