示例#1
0
文件: rcar_lvds.c 项目: lumag/linux
static int rcar_lvds_connector_atomic_check(struct drm_connector *connector,
					    struct drm_connector_state *state)
{
	struct rcar_lvds *lvds = connector_to_rcar_lvds(connector);
	const struct drm_display_mode *panel_mode;
	struct drm_crtc_state *crtc_state;

	if (list_empty(&connector->modes)) {
		dev_dbg(lvds->dev, "connector: empty modes list\n");
		return -EINVAL;
	}

	panel_mode = list_first_entry(&connector->modes,
				      struct drm_display_mode, head);

	/* We're not allowed to modify the resolution. */
	crtc_state = drm_atomic_get_crtc_state(state->state, state->crtc);
	if (IS_ERR(crtc_state))
		return PTR_ERR(crtc_state);

	if (crtc_state->mode.hdisplay != panel_mode->hdisplay ||
	    crtc_state->mode.vdisplay != panel_mode->vdisplay)
		return -EINVAL;

	/* The flat panel mode is fixed, just copy it to the adjusted mode. */
	drm_mode_copy(&crtc_state->adjusted_mode, panel_mode);

	return 0;
}
示例#2
0
static int mtk_plane_atomic_check(struct drm_plane *plane,
				  struct drm_plane_state *state)
{
	struct drm_framebuffer *fb = state->fb;
	struct drm_crtc_state *crtc_state;
	struct drm_rect clip = { 0, };

	if (!fb)
		return 0;

	if (!mtk_fb_get_gem_obj(fb)) {
		DRM_DEBUG_KMS("buffer is null\n");
		return -EFAULT;
	}

	if (!state->crtc)
		return 0;

	crtc_state = drm_atomic_get_crtc_state(state->state, state->crtc);
	if (IS_ERR(crtc_state))
		return PTR_ERR(crtc_state);

	clip.x2 = crtc_state->mode.hdisplay;
	clip.y2 = crtc_state->mode.vdisplay;

	return drm_atomic_helper_check_plane_state(state, crtc_state, &clip,
						   DRM_PLANE_HELPER_NO_SCALING,
						   DRM_PLANE_HELPER_NO_SCALING,
						   true, true);
}
示例#3
0
static int vkms_plane_atomic_check(struct drm_plane *plane,
				   struct drm_plane_state *state)
{
	struct drm_crtc_state *crtc_state;
	bool can_position = false;
	int ret;

	if (!state->fb | !state->crtc)
		return 0;

	crtc_state = drm_atomic_get_crtc_state(state->state, state->crtc);
	if (IS_ERR(crtc_state))
		return PTR_ERR(crtc_state);

	if (plane->type == DRM_PLANE_TYPE_CURSOR)
		can_position = true;

	ret = drm_atomic_helper_check_plane_state(state, crtc_state,
						  DRM_PLANE_HELPER_NO_SCALING,
						  DRM_PLANE_HELPER_NO_SCALING,
						  can_position, true);
	if (ret != 0)
		return ret;

	/* for now primary plane must be visible and full screen */
	if (!state->visible && !can_position)
		return -EINVAL;

	return 0;
}
示例#4
0
/**
 * drm_atomic_get_plane_state - get plane state
 * @state: global atomic state object
 * @plane: plane to get state object for
 *
 * This function returns the plane state for the given plane, allocating it if
 * needed. It will also grab the relevant plane lock to make sure that the state
 * is consistent.
 *
 * Returns:
 *
 * Either the allocated state or the error code encoded into the pointer. When
 * the error is EDEADLK then the w/w mutex code has detected a deadlock and the
 * entire atomic sequence must be restarted. All other errors are fatal.
 */
struct drm_plane_state *
drm_atomic_get_plane_state(struct drm_atomic_state *state,
			  struct drm_plane *plane)
{
	int ret, index = drm_plane_index(plane);
	struct drm_plane_state *plane_state;

	WARN_ON(!state->acquire_ctx);

	/* the legacy pointers should never be set */
	WARN_ON(plane->fb);
	WARN_ON(plane->old_fb);
	WARN_ON(plane->crtc);

	plane_state = drm_atomic_get_existing_plane_state(state, plane);
	if (plane_state)
		return plane_state;

	ret = drm_modeset_lock(&plane->mutex, state->acquire_ctx);
	if (ret)
		return ERR_PTR(ret);

	plane_state = plane->funcs->atomic_duplicate_state(plane);
	if (!plane_state)
		return ERR_PTR(-ENOMEM);

	state->planes[index].state = plane_state;
	state->planes[index].ptr = plane;
	state->planes[index].old_state = plane->state;
	state->planes[index].new_state = plane_state;
	plane_state->state = state;

	DRM_DEBUG_ATOMIC("Added [PLANE:%d:%s] %p state to %p\n",
			 plane->base.id, plane->name, plane_state, state);

	if (plane_state->crtc) {
		struct drm_crtc_state *crtc_state;

		crtc_state = drm_atomic_get_crtc_state(state,
						       plane_state->crtc);
		if (IS_ERR(crtc_state))
			return ERR_CAST(crtc_state);
	}

	return plane_state;
}
示例#5
0
static int ade_plane_atomic_check(struct drm_plane *plane,
				  struct drm_plane_state *state)
{
	struct drm_framebuffer *fb = state->fb;
	struct drm_crtc *crtc = state->crtc;
	struct drm_crtc_state *crtc_state;
	u32 src_x = state->src_x >> 16;
	u32 src_y = state->src_y >> 16;
	u32 src_w = state->src_w >> 16;
	u32 src_h = state->src_h >> 16;
	int crtc_x = state->crtc_x;
	int crtc_y = state->crtc_y;
	u32 crtc_w = state->crtc_w;
	u32 crtc_h = state->crtc_h;
	u32 fmt;

	if (!crtc || !fb)
		return 0;

	fmt = ade_get_format(fb->pixel_format);
	if (fmt == ADE_FORMAT_UNSUPPORT)
		return -EINVAL;

	crtc_state = drm_atomic_get_crtc_state(state->state, crtc);
	if (IS_ERR(crtc_state))
		return PTR_ERR(crtc_state);

	if (src_w != crtc_w || src_h != crtc_h) {
		DRM_ERROR("Scale not support!!!\n");
		return -EINVAL;
	}

	if (src_x + src_w > fb->width ||
	    src_y + src_h > fb->height)
		return -EINVAL;

	if (crtc_x < 0 || crtc_y < 0)
		return -EINVAL;

	if (crtc_x + crtc_w > crtc_state->adjusted_mode.hdisplay ||
	    crtc_y + crtc_h > crtc_state->adjusted_mode.vdisplay)
		return -EINVAL;

	return 0;
}
示例#6
0
/**
 * drm_atomic_get_plane_state - get plane state
 * @state: global atomic state object
 * @plane: plane to get state object for
 *
 * This function returns the plane state for the given plane, allocating it if
 * needed. It will also grab the relevant plane lock to make sure that the state
 * is consistent.
 *
 * Returns:
 *
 * Either the allocated state or the error code encoded into the pointer. When
 * the error is EDEADLK then the w/w mutex code has detected a deadlock and the
 * entire atomic sequence must be restarted. All other errors are fatal.
 */
struct drm_plane_state *
drm_atomic_get_plane_state(struct drm_atomic_state *state,
			  struct drm_plane *plane)
{
	int ret, index;
	struct drm_plane_state *plane_state;

	index = drm_plane_index(plane);

	if (state->plane_states[index])
		return state->plane_states[index];

	ret = drm_modeset_lock(&plane->mutex, state->acquire_ctx);
	if (ret)
		return ERR_PTR(ret);

	plane_state = plane->funcs->atomic_duplicate_state(plane);
	if (!plane_state)
		return ERR_PTR(-ENOMEM);

	state->plane_states[index] = plane_state;
	state->planes[index] = plane;
	plane_state->state = state;

	DRM_DEBUG_ATOMIC("Added [PLANE:%d] %p state to %p\n",
			 plane->base.id, plane_state, state);

	if (plane_state->crtc) {
		struct drm_crtc_state *crtc_state;

		crtc_state = drm_atomic_get_crtc_state(state,
						       plane_state->crtc);
		if (IS_ERR(crtc_state))
			return ERR_CAST(crtc_state);
	}

	return plane_state;
}
示例#7
0
static int mdp5_plane_atomic_check(struct drm_plane *plane,
		struct drm_plane_state *state)
{
	struct mdp5_plane *mdp5_plane = to_mdp5_plane(plane);
	struct drm_plane_state *old_state = plane->state;

	DBG("%s: check (%d -> %d)", mdp5_plane->name,
			plane_enabled(old_state), plane_enabled(state));

	if (plane_enabled(state) && plane_enabled(old_state)) {
		/* we cannot change SMP block configuration during scanout: */
		bool full_modeset = false;
		if (state->fb->pixel_format != old_state->fb->pixel_format) {
			DBG("%s: pixel_format change!", mdp5_plane->name);
			full_modeset = true;
		}
		if (state->src_w != old_state->src_w) {
			DBG("%s: src_w change!", mdp5_plane->name);
			full_modeset = true;
		}
		if (to_mdp5_plane_state(old_state)->pending) {
			DBG("%s: still pending!", mdp5_plane->name);
			full_modeset = true;
		}
		if (full_modeset) {
			struct drm_crtc_state *crtc_state =
					drm_atomic_get_crtc_state(state->state, state->crtc);
			crtc_state->mode_changed = true;
			to_mdp5_plane_state(state)->mode_changed = true;
		}
	} else {
		to_mdp5_plane_state(state)->mode_changed = true;
	}

	return 0;
}
示例#8
0
static int sti_hqvdp_atomic_check(struct drm_plane *drm_plane,
				  struct drm_plane_state *state)
{
	struct sti_plane *plane = to_sti_plane(drm_plane);
	struct sti_hqvdp *hqvdp = to_sti_hqvdp(plane);
	struct drm_crtc *crtc = state->crtc;
	struct drm_framebuffer *fb = state->fb;
	bool first_prepare = plane->status == STI_PLANE_DISABLED ? true : false;
	struct drm_crtc_state *crtc_state;
	struct drm_display_mode *mode;
	int dst_x, dst_y, dst_w, dst_h;
	int src_x, src_y, src_w, src_h;

	/* no need for further checks if the plane is being disabled */
	if (!crtc || !fb)
		return 0;

	crtc_state = drm_atomic_get_crtc_state(state->state, crtc);
	mode = &crtc_state->mode;
	dst_x = state->crtc_x;
	dst_y = state->crtc_y;
	dst_w = clamp_val(state->crtc_w, 0, mode->crtc_hdisplay - dst_x);
	dst_h = clamp_val(state->crtc_h, 0, mode->crtc_vdisplay - dst_y);
	/* src_x are in 16.16 format */
	src_x = state->src_x >> 16;
	src_y = state->src_y >> 16;
	src_w = state->src_w >> 16;
	src_h = state->src_h >> 16;

	if (!sti_hqvdp_check_hw_scaling(hqvdp, mode,
					src_w, src_h,
					dst_w, dst_h)) {
		DRM_ERROR("Scaling beyond HW capabilities\n");
		return -EINVAL;
	}

	if (!drm_fb_cma_get_gem_obj(fb, 0)) {
		DRM_ERROR("Can't get CMA GEM object for fb\n");
		return -EINVAL;
	}

	/*
	 * Input / output size
	 * Align to upper even value
	 */
	dst_w = ALIGN(dst_w, 2);
	dst_h = ALIGN(dst_h, 2);

	if ((src_w > MAX_WIDTH) || (src_w < MIN_WIDTH) ||
	    (src_h > MAX_HEIGHT) || (src_h < MIN_HEIGHT) ||
	    (dst_w > MAX_WIDTH) || (dst_w < MIN_WIDTH) ||
	    (dst_h > MAX_HEIGHT) || (dst_h < MIN_HEIGHT)) {
		DRM_ERROR("Invalid in/out size %dx%d -> %dx%d\n",
			  src_w, src_h,
			  dst_w, dst_h);
		return -EINVAL;
	}

	if (first_prepare) {
		/* Start HQVDP XP70 coprocessor */
		sti_hqvdp_start_xp70(hqvdp);

		/* Prevent VTG shutdown */
		if (clk_prepare_enable(hqvdp->clk_pix_main)) {
			DRM_ERROR("Failed to prepare/enable pix main clk\n");
			return -EINVAL;
		}

		/* Register VTG Vsync callback to handle bottom fields */
		if (sti_vtg_register_client(hqvdp->vtg,
					    &hqvdp->vtg_nb,
					    crtc)) {
			DRM_ERROR("Cannot register VTG notifier\n");
			return -EINVAL;
		}
	}

	DRM_DEBUG_KMS("CRTC:%d (%s) drm plane:%d (%s)\n",
		      crtc->base.id, sti_mixer_to_str(to_sti_mixer(crtc)),
		      drm_plane->base.id, sti_plane_to_str(plane));
	DRM_DEBUG_KMS("%s dst=(%dx%d)@(%d,%d) - src=(%dx%d)@(%d,%d)\n",
		      sti_plane_to_str(plane),
		      dst_w, dst_h, dst_x, dst_y,
		      src_w, src_h, src_x, src_y);

	return 0;
}