+++ /dev/null
-/*
- * Copyright (C) STMicroelectronics SA 2014
- * Authors: Benjamin Gaignard <benjamin.gaignard@st.com>
- * Fabien Dessenne <fabien.dessenne@st.com>
- * for STMicroelectronics.
- * License terms: GNU General Public License (GPL), version 2
- */
-
-#include <drm/drmP.h>
-#include <drm/drm_atomic_helper.h>
-#include <drm/drm_plane_helper.h>
-
-#include "sti_compositor.h"
-#include "sti_drm_drv.h"
-#include "sti_drm_plane.h"
-#include "sti_vtg.h"
-
-enum sti_layer_desc sti_layer_default_zorder[] = {
- STI_GDP_0,
- STI_VID_0,
- STI_GDP_1,
- STI_VID_1,
- STI_GDP_2,
- STI_GDP_3,
-};
-
-/* (Background) < GDP0 < VID0 < GDP1 < VID1 < GDP2 < GDP3 < (ForeGround) */
-
-static int
-sti_drm_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
- struct drm_framebuffer *fb, int crtc_x, int crtc_y,
- unsigned int crtc_w, unsigned int crtc_h,
- uint32_t src_x, uint32_t src_y,
- uint32_t src_w, uint32_t src_h)
-{
- struct sti_layer *layer = to_sti_layer(plane);
- struct sti_mixer *mixer = to_sti_mixer(crtc);
- int res;
-
- DRM_DEBUG_KMS("CRTC:%d (%s) drm plane:%d (%s)\n",
- crtc->base.id, sti_mixer_to_str(mixer),
- plane->base.id, sti_layer_to_str(layer));
- DRM_DEBUG_KMS("(%dx%d)@(%d,%d)\n", crtc_w, crtc_h, crtc_x, crtc_y);
-
- res = sti_mixer_set_layer_depth(mixer, layer);
- if (res) {
- DRM_ERROR("Can not set layer depth\n");
- return res;
- }
-
- /* src_x are in 16.16 format. */
- res = sti_layer_prepare(layer, crtc, fb,
- &crtc->mode, mixer->id,
- crtc_x, crtc_y, crtc_w, crtc_h,
- src_x >> 16, src_y >> 16,
- src_w >> 16, src_h >> 16);
- if (res) {
- DRM_ERROR("Layer prepare failed\n");
- return res;
- }
-
- res = sti_layer_commit(layer);
- if (res) {
- DRM_ERROR("Layer commit failed\n");
- return res;
- }
-
- res = sti_mixer_set_layer_status(mixer, layer, true);
- if (res) {
- DRM_ERROR("Can not enable layer at mixer\n");
- return res;
- }
-
- return 0;
-}
-
-static int sti_drm_disable_plane(struct drm_plane *plane)
-{
- struct sti_layer *layer;
- struct sti_mixer *mixer;
- int lay_res, mix_res;
-
- if (!plane->crtc) {
- DRM_DEBUG_DRIVER("drm plane:%d not enabled\n", plane->base.id);
- return 0;
- }
- layer = to_sti_layer(plane);
- mixer = to_sti_mixer(plane->crtc);
-
- DRM_DEBUG_DRIVER("CRTC:%d (%s) drm plane:%d (%s)\n",
- plane->crtc->base.id, sti_mixer_to_str(mixer),
- plane->base.id, sti_layer_to_str(layer));
-
- /* Disable layer at mixer level */
- mix_res = sti_mixer_set_layer_status(mixer, layer, false);
- if (mix_res)
- DRM_ERROR("Can not disable layer at mixer\n");
-
- /* Wait a while to be sure that a Vsync event is received */
- msleep(WAIT_NEXT_VSYNC_MS);
-
- /* Then disable layer itself */
- lay_res = sti_layer_disable(layer);
- if (lay_res)
- DRM_ERROR("Layer disable failed\n");
-
- if (lay_res || mix_res)
- return -EINVAL;
-
- return 0;
-}
-
-static void sti_drm_plane_destroy(struct drm_plane *plane)
-{
- DRM_DEBUG_DRIVER("\n");
-
- drm_plane_helper_disable(plane);
- drm_plane_cleanup(plane);
-}
-
-static int sti_drm_plane_set_property(struct drm_plane *plane,
- struct drm_property *property,
- uint64_t val)
-{
- struct drm_device *dev = plane->dev;
- struct sti_drm_private *private = dev->dev_private;
- struct sti_layer *layer = to_sti_layer(plane);
-
- DRM_DEBUG_DRIVER("\n");
-
- if (property == private->plane_zorder_property) {
- layer->zorder = val;
- return 0;
- }
-
- return -EINVAL;
-}
-
-static struct drm_plane_funcs sti_drm_plane_funcs = {
- .update_plane = drm_atomic_helper_update_plane,
- .disable_plane = drm_atomic_helper_disable_plane,
- .destroy = sti_drm_plane_destroy,
- .set_property = sti_drm_plane_set_property,
- .reset = drm_atomic_helper_plane_reset,
- .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
- .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
-};
-
-static int sti_drm_plane_prepare_fb(struct drm_plane *plane,
- struct drm_framebuffer *fb,
- const struct drm_plane_state *new_state)
-{
- return 0;
-}
-
-static void sti_drm_plane_cleanup_fb(struct drm_plane *plane,
- struct drm_framebuffer *fb,
- const struct drm_plane_state *old_fb)
-{
-}
-
-static int sti_drm_plane_atomic_check(struct drm_plane *plane,
- struct drm_plane_state *state)
-{
- return 0;
-}
-
-static void sti_drm_plane_atomic_update(struct drm_plane *plane,
- struct drm_plane_state *oldstate)
-{
- struct drm_plane_state *state = plane->state;
-
- sti_drm_update_plane(plane, state->crtc, state->fb,
- state->crtc_x, state->crtc_y,
- state->crtc_w, state->crtc_h,
- state->src_x, state->src_y,
- state->src_w, state->src_h);
-}
-
-static void sti_drm_plane_atomic_disable(struct drm_plane *plane,
- struct drm_plane_state *oldstate)
-{
- sti_drm_disable_plane(plane);
-}
-
-static const struct drm_plane_helper_funcs sti_drm_plane_helpers_funcs = {
- .prepare_fb = sti_drm_plane_prepare_fb,
- .cleanup_fb = sti_drm_plane_cleanup_fb,
- .atomic_check = sti_drm_plane_atomic_check,
- .atomic_update = sti_drm_plane_atomic_update,
- .atomic_disable = sti_drm_plane_atomic_disable,
-};
-
-static void sti_drm_plane_attach_zorder_property(struct drm_plane *plane,
- uint64_t default_val)
-{
- struct drm_device *dev = plane->dev;
- struct sti_drm_private *private = dev->dev_private;
- struct drm_property *prop;
- struct sti_layer *layer = to_sti_layer(plane);
-
- prop = private->plane_zorder_property;
- if (!prop) {
- prop = drm_property_create_range(dev, 0, "zpos", 0,
- GAM_MIXER_NB_DEPTH_LEVEL - 1);
- if (!prop)
- return;
-
- private->plane_zorder_property = prop;
- }
-
- drm_object_attach_property(&plane->base, prop, default_val);
- layer->zorder = default_val;
-}
-
-struct drm_plane *sti_drm_plane_init(struct drm_device *dev,
- struct sti_layer *layer,
- unsigned int possible_crtcs,
- enum drm_plane_type type)
-{
- int err, i;
- uint64_t default_zorder = 0;
-
- err = drm_universal_plane_init(dev, &layer->plane, possible_crtcs,
- &sti_drm_plane_funcs,
- sti_layer_get_formats(layer),
- sti_layer_get_nb_formats(layer), type);
- if (err) {
- DRM_ERROR("Failed to initialize plane\n");
- return NULL;
- }
-
- drm_plane_helper_add(&layer->plane, &sti_drm_plane_helpers_funcs);
-
- for (i = 0; i < ARRAY_SIZE(sti_layer_default_zorder); i++)
- if (sti_layer_default_zorder[i] == layer->desc)
- break;
-
- default_zorder = i + 1;
-
- if (type == DRM_PLANE_TYPE_OVERLAY)
- sti_drm_plane_attach_zorder_property(&layer->plane,
- default_zorder);
-
- DRM_DEBUG_DRIVER("drm plane:%d mapped to %s with zorder:%llu\n",
- layer->plane.base.id,
- sti_layer_to_str(layer), default_zorder);
-
- return &layer->plane;
-}
-EXPORT_SYMBOL(sti_drm_plane_init);
Code Review / kvmfornfv.git / blobdiff