path: root/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c

/*
 * Copyright (C) 2014-2015 The Linux Foundation. All rights reserved.
 * Copyright (C) 2013 Red Hat
 * Author: Rob Clark <robdclark@gmail.com>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published by
 * the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <drm/drm_print.h>
#include "mdp5_kms.h"

struct mdp5_plane {
	struct drm_plane base;

	uint32_t nformats;
	uint32_t formats[32];
};
#define to_mdp5_plane(x) container_of(x, struct mdp5_plane, base)

static int mdp5_plane_mode_set(struct drm_plane *plane,
		struct drm_crtc *crtc, struct drm_framebuffer *fb,
		struct drm_rect *src, struct drm_rect *dest);

static struct mdp5_kms *get_kms(struct drm_plane *plane)
{
	struct msm_drm_private *priv = plane->dev->dev_private;
	return to_mdp5_kms(to_mdp_kms(priv->kms));
}

static bool plane_enabled(struct drm_plane_state *state)
{
	return state->visible;
}

static void mdp5_plane_destroy(struct drm_plane *plane)
{
	struct mdp5_plane *mdp5_plane = to_mdp5_plane(plane);

	drm_plane_helper_disable(plane);
	drm_plane_cleanup(plane);

	kfree(mdp5_plane);
}

static void mdp5_plane_install_rotation_property(struct drm_device *dev,
		struct drm_plane *plane)
{
	drm_plane_create_rotation_property(plane,
					   DRM_MODE_ROTATE_0,
					   DRM_MODE_ROTATE_0 |
					   DRM_MODE_ROTATE_180 |
					   DRM_MODE_REFLECT_X |
					   DRM_MODE_REFLECT_Y);
}

/* helper to install properties which are common to planes and crtcs */
static void mdp5_plane_install_properties(struct drm_plane *plane,
		struct drm_mode_object *obj)
{
	struct drm_device *dev = plane->dev;
	struct msm_drm_private *dev_priv = dev->dev_private;
	struct drm_property *prop;

#define INSTALL_PROPERTY(name, NAME, init_val, fnc, ...) do { \
		prop = dev_priv->plane_property[PLANE_PROP_##NAME]; \
		if (!prop) { \
			prop = drm_property_##fnc(dev, 0, #name, \
				##__VA_ARGS__); \
			if (!prop) { \
				dev_warn(dev->dev, \
					"Create property %s failed\n", \
					#name); \
				return; \
			} \
			dev_priv->plane_property[PLANE_PROP_##NAME] = prop; \
		} \
		drm_object_attach_property(&plane->base, prop, init_val); \
	} while (0)

#define INSTALL_RANGE_PROPERTY(name, NAME, min, max, init_val) \
		INSTALL_PROPERTY(name, NAME, init_val, \
				create_range, min, max)

#define INSTALL_ENUM_PROPERTY(name, NAME, init_val) \
		INSTALL_PROPERTY(name, NAME, init_val, \
				create_enum, name##_prop_enum_list, \
				ARRAY_SIZE(name##_prop_enum_list))

	INSTALL_RANGE_PROPERTY(zpos, ZPOS, 1, 255, 1);

	mdp5_plane_install_rotation_property(dev, plane);

#undef INSTALL_RANGE_PROPERTY
#undef INSTALL_ENUM_PROPERTY
#undef INSTALL_PROPERTY
}

static int mdp5_plane_atomic_set_property(struct drm_plane *plane,
		struct drm_plane_state *state, struct drm_property *property,
		uint64_t val)
{
	struct drm_device *dev = plane->dev;
	struct mdp5_plane_state *pstate;
	struct msm_drm_private *dev_priv = dev->dev_private;
	int ret = 0;

	pstate = to_mdp5_plane_state(state);

#define SET_PROPERTY(name, NAME, type) do { \
		if (dev_priv->plane_property[PLANE_PROP_##NAME] == property) { \
			pstate->name = (type)val; \
			DBG("Set property %s %d", #name, (type)val); \
			goto done; \
		} \
	} while (0)

	SET_PROPERTY(zpos, ZPOS, uint8_t);

	dev_err(dev->dev, "Invalid property\n");
	ret = -EINVAL;
done:
	return ret;
#undef SET_PROPERTY
}

static int mdp5_plane_atomic_get_property(struct drm_plane *plane,
		const struct drm_plane_state *state,
		struct drm_property *property, uint64_t *val)
{
	struct drm_device *dev = plane->dev;
	struct mdp5_plane_state *pstate;
	struct msm_drm_private *dev_priv = dev->dev_private;
	int ret = 0;

	pstate = to_mdp5_plane_state(state);

#define GET_PROPERTY(name, NAME, type) do { \
		if (dev_priv->plane_property[PLANE_PROP_##NAME] == property) { \
			*val = pstate->name; \
			DBG("Get property %s %lld", #name, *val); \
			goto done; \
		} \
	} while (0)

	GET_PROPERTY(zpos, ZPOS, uint8_t);

	dev_err(dev->dev, "Invalid property\n");
	ret = -EINVAL;
done:
	return ret;
#undef SET_PROPERTY
}

static void
mdp5_plane_atomic_print_state(struct drm_printer *p,
		const struct drm_plane_state *state)
{
	struct mdp5_plane_state *pstate = to_mdp5_plane_state(state);
	struct mdp5_kms *mdp5_kms = get_kms(state->plane);

	drm_printf(p, "\thwpipe=%s\n", pstate->hwpipe ?
			pstate->hwpipe->name : "(null)");
	if (mdp5_kms->caps & MDP_CAP_SRC_SPLIT)
		drm_printf(p, "\tright-hwpipe=%s\n",
			   pstate->r_hwpipe ?