[mirror_ubuntu-artful-kernel.git] / drivers / gpu / drm / omapdrm / omap_plane.c

/*
 * drivers/gpu/drm/omapdrm/omap_plane.c
 *
 * Copyright (C) 2011 Texas Instruments
 * Author: Rob Clark <rob.clark@linaro.org>
 *
 * 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_flip_work.h"

#include "omap_drv.h"
#include "omap_dmm_tiler.h"

/* some hackery because omapdss has an 'enum omap_plane' (which would be
 * better named omap_plane_id).. and compiler seems unhappy about having
 * both a 'struct omap_plane' and 'enum omap_plane'
 */
#define omap_plane _omap_plane

/*
 * plane funcs
 */

struct callback {
	void (*fxn)(void *);
	void *arg;
};

#define to_omap_plane(x) container_of(x, struct omap_plane, base)

struct omap_plane {
	struct drm_plane base;
	int id;  /* TODO rename omap_plane -> omap_plane_id in omapdss so I can use the enum */
	const char *name;
	struct omap_overlay_info info;
	struct omap_drm_apply apply;

	/* position/orientation of scanout within the fb: */
	struct omap_drm_window win;
	bool enabled;

	/* last fb that we pinned: */
	struct drm_framebuffer *pinned_fb;

	uint32_t nformats;
	uint32_t formats[32];

	struct omap_drm_irq error_irq;

	/* for deferring bo unpin's until next post_apply(): */
	struct drm_flip_work unpin_work;

	// XXX maybe get rid of this and handle vblank in crtc too?
	struct callback apply_done_cb;
};

static void unpin_worker(struct drm_flip_work *work, void *val)
{
	struct omap_plane *omap_plane =
			container_of(work, struct omap_plane, unpin_work);
	struct drm_device *dev = omap_plane->base.dev;

	omap_framebuffer_unpin(val);
	mutex_lock(&dev->mode_config.mutex);
	drm_framebuffer_unreference(val);
	mutex_unlock(&dev->mode_config.mutex);
}

/* update which fb (if any) is pinned for scanout */
static int update_pin(struct drm_plane *plane, struct drm_framebuffer *fb)
{
	struct omap_plane *omap_plane = to_omap_plane(plane);
	struct drm_framebuffer *pinned_fb = omap_plane->pinned_fb;

	if (pinned_fb != fb) {
		int ret = 0;

		DBG("%p -> %p", pinned_fb, fb);

		if (fb) {
			drm_framebuffer_reference(fb);
			ret = omap_framebuffer_pin(fb);
		}

		if (pinned_fb)
			drm_flip_work_queue(&omap_plane->unpin_work, pinned_fb);

		if (ret) {
			dev_err(plane->dev->dev, "could not swap %p -> %p\n",
					omap_plane->pinned_fb, fb);
			drm_framebuffer_unreference(fb);
			omap_plane->pinned_fb = NULL;
			return ret;
		}

		omap_plane->pinned_fb = fb;
	}

	return 0;
}

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;
	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);

	/* and finally, update omapdss: */
	ret = dispc_ovl_setup(omap_plane->id, info, false,
			      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 void omap_plane_post_apply(struct omap_drm_apply *apply)
{
	struct omap_plane *omap_plane =
			container_of(apply, struct omap_plane, apply);
	struct drm_plane *plane = &omap_plane->base;
	struct omap_drm_private *priv = plane->dev->dev_private;
	struct omap_overlay_info *info = &omap_plane->info;
	struct callback cb;

	cb = omap_plane->apply_done_cb;
	omap_plane->apply_done_cb.fxn = NULL;

	drm_flip_work_commit(&omap_plane->unpin_work, priv->wq);

	if (cb.fxn)
		cb.fxn(cb.arg);

	if (omap_plane->enabled) {
		omap_framebuffer_flush(plane->fb, info->pos_x, info->pos_y,
				info->out_width, info->out_height);
	}
}

static int apply(struct drm_plane *plane)
{
	if (plane->crtc) {
		struct omap_plane *omap_plane = to_omap_plane(plane);
		return omap_crtc_apply(plane->crtc, &omap_plane->apply);
	}
	return 0;
}

int omap_plane_mode_set(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,
		void (*fxn)(void *), void *arg)
{
	struct omap_plane *omap_plane = to_omap_plane(plane);
	struct omap_drm_window *win = &omap_plane->win;

	win->crtc_x = crtc_x;
	win->crtc_y = crtc_y;
	win->crtc_w = crtc_w;
	win->crtc_h = crtc_h;

	/* src values are in Q16 fixed point, convert to integer: */
	win->src_x = src_x >> 16;
	win->src_y = src_y >> 16;
	win->src_w = src_w >> 16;
	win->src_h = src_h >> 16;

	if (fxn) {
		/* omap_crtc should ensure that a new page flip
		 * isn't permitted while there is one pending:
		 */
		BUG_ON(omap_plane->apply_done_cb.fxn);

		omap_plane->apply_done_cb.fxn = fxn;
		omap_plane->apply_done_cb.arg = arg;
	}

	return apply(plane);
}

static int omap_plane_update(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 omap_plane *omap_plane = to_omap_plane(plane);
	omap_plane->enabled = true;

	/* omap_plane_mode_set() takes adjusted src */
	switch (omap_plane->win.rotation & 0xf) {
	case BIT(DRM_ROTATE_90):
	case BIT(DRM_ROTATE_270):
		swap(src_w, src_h);
		break;
	}

	/*
	 * We don't need to take a reference to the framebuffer as the DRM core
	 * has already done so for the purpose of setting plane->fb.
	 */
	plane->fb = fb;
	plane->crtc = crtc;

	return omap_plane_mode_set(plane, crtc, fb,
			crtc_x, crtc_y, crtc_w, crtc_h,
			src_x, src_y, src_w, src_h,
			NULL, NULL);
}

static int omap_plane_disable(struct drm_plane *plane)
{
	struct omap_plane *omap_plane = to_omap_plane(plane);

	omap_plane->win.rotation = BIT(DRM_ROTATE_0);
	return omap_plane_set_enable(plane, false);
}

static void omap_plane_destroy(struct drm_plane *plane)
{
	struct omap_plane *omap_plane = to_omap_plane(plane);

	DBG("%s", omap_plane->name);

	omap_irq_unregister(plane->dev, &omap_plane->error_irq);

	omap_plane_disable(plane);
	drm_plane_cleanup(plane);

	drm_flip_work_cleanup(&omap_plane->unpin_work);

	kfree(omap_plane);
}

int omap_plane_set_enable(struct drm_plane *plane, bool enable)
{
	struct omap_plane *omap_plane = to_omap_plane(plane);

	if (enable == omap_plane->enabled)
		return 0;

	omap_plane->enabled = enable;
	return apply(plane);
}

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

	if (priv->has_dmm) {
		prop = priv->rotation_prop;
		if (!prop) {
			prop = drm_mode_create_rotation_property(dev,
								 BIT(DRM_ROTATE_0) |
								 BIT(DRM_ROTATE_90) |
								 BIT(DRM_ROTATE_180) |
								 BIT(DRM_ROTATE_270) |
								 BIT(DRM_REFLECT_X) |
								 BIT(DRM_REFLECT_Y));
			if (prop == NULL)
				return;
			priv->rotation_prop = prop;
		}
		drm_object_attach_property(obj, prop, 0);
	}

	prop = priv->zorder_prop;
	if (!prop) {
		prop = drm_property_create_range(dev, 0, "zorder", 0, 3);
		if (prop == NULL)
			return;
		priv->zorder_prop = prop;
	}
	drm_object_attach_property(obj, prop, 0);
}

int omap_plane_set_property(struct drm_plane *plane,
		struct drm_property *property, uint64_t val)
{
	struct omap_plane *omap_plane = to_omap_plane(plane);
	struct omap_drm_private *priv = plane->dev->dev_private;
	int ret = -EINVAL;

	if (property == priv->rotation_prop) {
		DBG("%s: rotation: %02x", omap_plane->name, (uint32_t)val);
		omap_plane->win.rotation = val;
		ret = apply(plane);
	} else if (property == priv->zorder_prop) {
		DBG("%s: zorder: %02x", omap_plane->name, (uint32_t)val);
		omap_plane->info.zorder = val;
		ret = apply(plane);
	}

	return ret;
}

static const struct drm_plane_funcs omap_plane_funcs = {
	.update_plane = omap_plane_update,
	.disable_plane = omap_plane_disable,
	.destroy = omap_plane_destroy,
	.set_property = omap_plane_set_property,
};

static void omap_plane_error_irq(struct omap_drm_irq *irq, uint32_t irqstatus)
{
	struct omap_plane *omap_plane =
			container_of(irq, struct omap_plane, error_irq);
	DRM_ERROR("%s: errors: %08x\n", omap_plane->name, irqstatus);
}

static const char *plane_names[] = {
	[OMAP_DSS_GFX] = "gfx",
	[OMAP_DSS_VIDEO1] = "vid1",
	[OMAP_DSS_VIDEO2] = "vid2",
	[OMAP_DSS_VIDEO3] = "vid3",
};

static const uint32_t error_irqs[] = {
	[OMAP_DSS_GFX] = DISPC_IRQ_GFX_FIFO_UNDERFLOW,
	[OMAP_DSS_VIDEO1] = DISPC_IRQ_VID1_FIFO_UNDERFLOW,
	[OMAP_DSS_VIDEO2] = DISPC_IRQ_VID2_FIFO_UNDERFLOW,
	[OMAP_DSS_VIDEO3] = DISPC_IRQ_VID3_FIFO_UNDERFLOW,
};

/* initialize plane */
struct drm_plane *omap_plane_init(struct drm_device *dev,
		int id, enum drm_plane_type type)
{
	struct omap_drm_private *priv = dev->dev_private;
	struct drm_plane *plane;
	struct omap_plane *omap_plane;
	struct omap_overlay_info *info;
	int ret;

	DBG("%s: type=%d", plane_names[id], type);

	omap_plane = kzalloc(sizeof(*omap_plane), GFP_KERNEL);
	if (!omap_plane)
		return ERR_PTR(-ENOMEM);

	drm_flip_work_init(&omap_plane->unpin_work,
			"unpin", unpin_worker);

	omap_plane->nformats = omap_framebuffer_get_formats(
			omap_plane->formats, ARRAY_SIZE(omap_plane->formats),
			dss_feat_get_supported_color_modes(id));
	omap_plane->id = id;
	omap_plane->name = plane_names[id];

	plane = &omap_plane->base;

	omap_plane->apply.pre_apply  = omap_plane_pre_apply;
	omap_plane->apply.post_apply = omap_plane_post_apply;

	omap_plane->error_irq.irqmask = error_irqs[id];
	omap_plane->error_irq.irq = omap_plane_error_irq;
	omap_irq_register(dev, &omap_plane->error_irq);

	ret = drm_universal_plane_init(dev, plane, (1 << priv->num_crtcs) - 1,
				       &omap_plane_funcs, omap_plane->formats,
				       omap_plane->nformats, type);
	if (ret < 0)
		goto error;

	omap_plane_install_properties(plane, &plane->base);

	/* get our starting configuration, set defaults for parameters
	 * we don't currently use, etc:
	 */
	info = &omap_plane->info;
	info->rotation_type = OMAP_DSS_ROT_DMA;
	info->rotation = OMAP_DSS_ROT_0;
	info->global_alpha = 0xff;
	info->mirror = 0;

	/* Set defaults depending on whether we are a CRTC or overlay
	 * layer.
	 * TODO add ioctl to give userspace an API to change this.. this
	 * will come in a subsequent patch.
	 */
	if (type == DRM_PLANE_TYPE_PRIMARY)
		omap_plane->info.zorder = 0;
	else
		omap_plane->info.zorder = id;

	return plane;

error:
	omap_irq_unregister(plane->dev, &omap_plane->error_irq);
	kfree(omap_plane);
	return NULL;
}
Commit	Line	Data
bb5c2d9a	1	/*
8bb0daff	2	* drivers/gpu/drm/omapdrm/omap_plane.c
bb5c2d9a RC	3	*
	4	* Copyright (C) 2011 Texas Instruments
	5	* Author: Rob Clark <rob.clark@linaro.org>
	6	*
	7	* This program is free software; you can redistribute it and/or modify it
	8	* under the terms of the GNU General Public License version 2 as published by
	9	* the Free Software Foundation.
	10	*
	11	* This program is distributed in the hope that it will be useful, but WITHOUT
	12	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	13	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	14	* more details.
	15	*
	16	* You should have received a copy of the GNU General Public License along with
	17	* this program. If not, see <http://www.gnu.org/licenses/>.
	18	*/
	19
5833bd2f	20	#include "drm_flip_work.h"
b33f34d3	21
bb5c2d9a	22	#include "omap_drv.h"
3c810c61	23	#include "omap_dmm_tiler.h"
bb5c2d9a RC	24
	25	/* some hackery because omapdss has an 'enum omap_plane' (which would be
	26	* better named omap_plane_id).. and compiler seems unhappy about having
	27	* both a 'struct omap_plane' and 'enum omap_plane'
	28	*/
	29	#define omap_plane _omap_plane
	30
	31	/*
	32	* plane funcs
	33	*/
	34
72d0c336 RC	35	struct callback {
	36	void (fxn)(void );
	37	void *arg;
	38	};
	39
bb5c2d9a RC	40	#define to_omap_plane(x) container_of(x, struct omap_plane, base)
	41
	42	struct omap_plane {
	43	struct drm_plane base;
f5f9454c RC	44	int id; /* TODO rename omap_plane -> omap_plane_id in omapdss so I can use the enum */
f5f9454c RC	45	const char *name;
bb5c2d9a	46	struct omap_overlay_info info;
f5f9454c	47	struct omap_drm_apply apply;
bb5c2d9a	48
3c810c61 RC	49	/* position/orientation of scanout within the fb: */
3c810c61 RC	50	struct omap_drm_window win;
f5f9454c	51	bool enabled;
9a0774e0 RC	52
	53	/* last fb that we pinned: */
	54	struct drm_framebuffer *pinned_fb;
bb5c2d9a	55
a890e662 RC	56	uint32_t nformats;
a890e662 RC	57	uint32_t formats[32];
b33f34d3	58
f5f9454c	59	struct omap_drm_irq error_irq;
b33f34d3	60
5833bd2f RC	61	/* for deferring bo unpin's until next post_apply(): */
5833bd2f RC	62	struct drm_flip_work unpin_work;
b33f34d3	63
f5f9454c RC	64	// XXX maybe get rid of this and handle vblank in crtc too?
f5f9454c RC	65	struct callback apply_done_cb;
a890e662	66	};
bb5c2d9a	67
5833bd2f	68	static void unpin_worker(struct drm_flip_work work, void val)
b33f34d3	69	{
5833bd2f RC	70	struct omap_plane *omap_plane =
	71	container_of(work, struct omap_plane, unpin_work);
	72	struct drm_device *dev = omap_plane->base.dev;
b33f34d3	73
5833bd2f RC	74	omap_framebuffer_unpin(val);
	75	mutex_lock(&dev->mode_config.mutex);
	76	drm_framebuffer_unreference(val);
	77	mutex_unlock(&dev->mode_config.mutex);
b33f34d3 RC	78	}
b33f34d3 RC	79
9a0774e0 RC	80	/* update which fb (if any) is pinned for scanout */
	81	static int update_pin(struct drm_plane plane, struct drm_framebuffer fb)
	82	{
	83	struct omap_plane *omap_plane = to_omap_plane(plane);
b33f34d3 RC	84	struct drm_framebuffer *pinned_fb = omap_plane->pinned_fb;
	85
	86	if (pinned_fb != fb) {
5833bd2f	87	int ret = 0;
b33f34d3 RC	88
	89	DBG("%p -> %p", pinned_fb, fb);
	90
5833bd2f	91	if (fb) {
f5f9454c	92	drm_framebuffer_reference(fb);
5833bd2f RC	93	ret = omap_framebuffer_pin(fb);
5833bd2f RC	94	}
f5f9454c RC	95
f5f9454c RC	96	if (pinned_fb)
5833bd2f	97	drm_flip_work_queue(&omap_plane->unpin_work, pinned_fb);
b33f34d3 RC	98
	99	if (ret) {
	100	dev_err(plane->dev->dev, "could not swap %p -> %p\n",
	101	omap_plane->pinned_fb, fb);
5833bd2f	102	drm_framebuffer_unreference(fb);
b33f34d3 RC	103	omap_plane->pinned_fb = NULL;
	104	return ret;
	105	}
9a0774e0	106
9a0774e0	107	omap_plane->pinned_fb = fb;
9a0774e0 RC	108	}
9a0774e0 RC	109
b33f34d3	110	return 0;
9a0774e0 RC	111	}
9a0774e0 RC	112
f5f9454c	113	static void omap_plane_pre_apply(struct omap_drm_apply *apply)
bb5c2d9a	114	{
f5f9454c RC	115	struct omap_plane *omap_plane =
f5f9454c RC	116	container_of(apply, struct omap_plane, apply);
3c810c61	117	struct omap_drm_window *win = &omap_plane->win;
f5f9454c RC	118	struct drm_plane *plane = &omap_plane->base;
	119	struct drm_device *dev = plane->dev;
	120	struct omap_overlay_info *info = &omap_plane->info;
	121	struct drm_crtc *crtc = plane->crtc;
	122	enum omap_channel channel;
	123	bool enabled = omap_plane->enabled && crtc;
9a0774e0	124	int ret;
bb5c2d9a	125
f5f9454c RC	126	DBG("%s, enabled=%d", omap_plane->name, enabled);
	127
	128	/* if fb has changed, pin new fb: */
	129	update_pin(plane, enabled ? plane->fb : NULL);
	130
	131	if (!enabled) {
	132	dispc_ovl_enable(omap_plane->id, false);
2f53700d	133	return;
9a0774e0	134	}
bb5c2d9a	135
f5f9454c RC	136	channel = omap_crtc_channel(crtc);
	137
	138	/* update scanout: */
3c810c61	139	omap_framebuffer_update_scanout(plane->fb, win, info);
bb5c2d9a	140
f5f9454c RC	141	DBG("%dx%d -> %dx%d (%d)", info->width, info->height,
f5f9454c RC	142	info->out_width, info->out_height,
9a0774e0	143	info->screen_width);
2d31ca3a RK	144	DBG("%d,%d %pad %pad", info->pos_x, info->pos_y,
2d31ca3a RK	145	&info->paddr, &info->p_uv_addr);
f5f9454c	146
f5f9454c	147	/* and finally, update omapdss: */
9c660b7c LP	148	ret = dispc_ovl_setup(omap_plane->id, info, false,
9c660b7c LP	149	omap_crtc_timings(crtc), false);
f5f9454c RC	150	if (ret) {
	151	dev_err(dev->dev, "dispc_ovl_setup failed: %d\n", ret);
	152	return;
	153	}
	154
	155	dispc_ovl_enable(omap_plane->id, true);
	156	dispc_ovl_set_channel_out(omap_plane->id, channel);
	157	}
	158
	159	static void omap_plane_post_apply(struct omap_drm_apply *apply)
	160	{
	161	struct omap_plane *omap_plane =
	162	container_of(apply, struct omap_plane, apply);
	163	struct drm_plane *plane = &omap_plane->base;
5833bd2f	164	struct omap_drm_private *priv = plane->dev->dev_private;
f5f9454c	165	struct omap_overlay_info *info = &omap_plane->info;
f5f9454c RC	166	struct callback cb;
	167
	168	cb = omap_plane->apply_done_cb;
	169	omap_plane->apply_done_cb.fxn = NULL;
	170
5833bd2f	171	drm_flip_work_commit(&omap_plane->unpin_work, priv->wq);
f5f9454c RC	172
	173	if (cb.fxn)
	174	cb.fxn(cb.arg);
	175
	176	if (omap_plane->enabled) {
	177	omap_framebuffer_flush(plane->fb, info->pos_x, info->pos_y,
	178	info->out_width, info->out_height);
	179	}
	180	}
	181
	182	static int apply(struct drm_plane *plane)
	183	{
	184	if (plane->crtc) {
	185	struct omap_plane *omap_plane = to_omap_plane(plane);
	186	return omap_crtc_apply(plane->crtc, &omap_plane->apply);
	187	}
	188	return 0;
bb5c2d9a RC	189	}
bb5c2d9a RC	190
2f53700d	191	int omap_plane_mode_set(struct drm_plane *plane,
bb5c2d9a RC	192	struct drm_crtc crtc, struct drm_framebuffer fb,
	193	int crtc_x, int crtc_y,
	194	unsigned int crtc_w, unsigned int crtc_h,
	195	uint32_t src_x, uint32_t src_y,
f5f9454c RC	196	uint32_t src_w, uint32_t src_h,
f5f9454c RC	197	void (fxn)(void ), void *arg)
bb5c2d9a RC	198	{
bb5c2d9a RC	199	struct omap_plane *omap_plane = to_omap_plane(plane);
3c810c61 RC	200	struct omap_drm_window *win = &omap_plane->win;
	201
	202	win->crtc_x = crtc_x;
	203	win->crtc_y = crtc_y;
	204	win->crtc_w = crtc_w;
	205	win->crtc_h = crtc_h;
bb5c2d9a RC	206
bb5c2d9a RC	207	/* src values are in Q16 fixed point, convert to integer: */
3c810c61 RC	208	win->src_x = src_x >> 16;
	209	win->src_y = src_y >> 16;
	210	win->src_w = src_w >> 16;
	211	win->src_h = src_h >> 16;
bb5c2d9a	212
f5f9454c RC	213	if (fxn) {
	214	/* omap_crtc should ensure that a new page flip
	215	* isn't permitted while there is one pending:
	216	*/
	217	BUG_ON(omap_plane->apply_done_cb.fxn);
	218
	219	omap_plane->apply_done_cb.fxn = fxn;
	220	omap_plane->apply_done_cb.arg = arg;
	221	}
	222
f5f9454c	223	return apply(plane);
bb5c2d9a RC	224	}
bb5c2d9a RC	225
2f53700d RC	226	static int omap_plane_update(struct drm_plane *plane,
	227	struct drm_crtc crtc, struct drm_framebuffer fb,
	228	int crtc_x, int crtc_y,
	229	unsigned int crtc_w, unsigned int crtc_h,
	230	uint32_t src_x, uint32_t src_y,
	231	uint32_t src_w, uint32_t src_h)
	232	{
f5f9454c RC	233	struct omap_plane *omap_plane = to_omap_plane(plane);
f5f9454c RC	234	omap_plane->enabled = true;
b03e14fd	235
d4586604 GI	236	/* omap_plane_mode_set() takes adjusted src */
	237	switch (omap_plane->win.rotation & 0xf) {
	238	case BIT(DRM_ROTATE_90):
	239	case BIT(DRM_ROTATE_270):
	240	swap(src_w, src_h);
	241	break;
	242	}
	243
ef6b0e02 LP	244	/*
	245	* We don't need to take a reference to the framebuffer as the DRM core
	246	* has already done so for the purpose of setting plane->fb.
	247	*/
	248	plane->fb = fb;
	249	plane->crtc = crtc;
	250
f5f9454c RC	251	return omap_plane_mode_set(plane, crtc, fb,
	252	crtc_x, crtc_y, crtc_w, crtc_h,
	253	src_x, src_y, src_w, src_h,
	254	NULL, NULL);
2f53700d RC	255	}
2f53700d RC	256
bb5c2d9a RC	257	static int omap_plane_disable(struct drm_plane *plane)
bb5c2d9a RC	258	{
3c810c61	259	struct omap_plane *omap_plane = to_omap_plane(plane);
2debab97	260
3c810c61	261	omap_plane->win.rotation = BIT(DRM_ROTATE_0);
2debab97	262	return omap_plane_set_enable(plane, false);
bb5c2d9a RC	263	}
	264
	265	static void omap_plane_destroy(struct drm_plane *plane)
	266	{
	267	struct omap_plane *omap_plane = to_omap_plane(plane);
f5f9454c RC	268
	269	DBG("%s", omap_plane->name);
	270
	271	omap_irq_unregister(plane->dev, &omap_plane->error_irq);
	272
bb5c2d9a RC	273	omap_plane_disable(plane);
bb5c2d9a RC	274	drm_plane_cleanup(plane);
f5f9454c	275
5833bd2f	276	drm_flip_work_cleanup(&omap_plane->unpin_work);
f5f9454c	277
bb5c2d9a RC	278	kfree(omap_plane);
	279	}
	280
2debab97	281	int omap_plane_set_enable(struct drm_plane *plane, bool enable)
bb5c2d9a RC	282	{
	283	struct omap_plane *omap_plane = to_omap_plane(plane);
	284
2debab97 LP	285	if (enable == omap_plane->enabled)
2debab97 LP	286	return 0;
bb5c2d9a	287
2debab97 LP	288	omap_plane->enabled = enable;
2debab97 LP	289	return apply(plane);
72d0c336 RC	290	}
72d0c336 RC	291
3c810c61 RC	292	/* helper to install properties which are common to planes and crtcs */
	293	void omap_plane_install_properties(struct drm_plane *plane,
	294	struct drm_mode_object *obj)
	295	{
	296	struct drm_device *dev = plane->dev;
	297	struct omap_drm_private *priv = dev->dev_private;
	298	struct drm_property *prop;
	299
c2a6a552 RC	300	if (priv->has_dmm) {
	301	prop = priv->rotation_prop;
	302	if (!prop) {
a4969dd7 VS	303	prop = drm_mode_create_rotation_property(dev,
	304	BIT(DRM_ROTATE_0) \|
	305	BIT(DRM_ROTATE_90) \|
	306	BIT(DRM_ROTATE_180) \|
	307	BIT(DRM_ROTATE_270) \|
	308	BIT(DRM_REFLECT_X) \|
	309	BIT(DRM_REFLECT_Y));
c2a6a552 RC	310	if (prop == NULL)
	311	return;
	312	priv->rotation_prop = prop;
	313	}
	314	drm_object_attach_property(obj, prop, 0);
3c810c61	315	}
8451b5ad	316
c17d37df YT	317	prop = priv->zorder_prop;
c17d37df YT	318	if (!prop) {
8451b5ad AR	319	prop = drm_property_create_range(dev, 0, "zorder", 0, 3);
	320	if (prop == NULL)
	321	return;
	322	priv->zorder_prop = prop;
	323	}
	324	drm_object_attach_property(obj, prop, 0);
3c810c61 RC	325	}
	326
	327	int omap_plane_set_property(struct drm_plane *plane,
	328	struct drm_property *property, uint64_t val)
	329	{
	330	struct omap_plane *omap_plane = to_omap_plane(plane);
	331	struct omap_drm_private *priv = plane->dev->dev_private;
	332	int ret = -EINVAL;
	333
	334	if (property == priv->rotation_prop) {
f5f9454c	335	DBG("%s: rotation: %02x", omap_plane->name, (uint32_t)val);
3c810c61	336	omap_plane->win.rotation = val;
f5f9454c	337	ret = apply(plane);
8451b5ad	338	} else if (property == priv->zorder_prop) {
f5f9454c	339	DBG("%s: zorder: %02x", omap_plane->name, (uint32_t)val);
8451b5ad	340	omap_plane->info.zorder = val;
f5f9454c	341	ret = apply(plane);
3c810c61 RC	342	}
	343
	344	return ret;
	345	}
	346
bb5c2d9a	347	static const struct drm_plane_funcs omap_plane_funcs = {
222025e4 LP	348	.update_plane = omap_plane_update,
	349	.disable_plane = omap_plane_disable,
	350	.destroy = omap_plane_destroy,
	351	.set_property = omap_plane_set_property,
bb5c2d9a RC	352	};
bb5c2d9a RC	353
f5f9454c RC	354	static void omap_plane_error_irq(struct omap_drm_irq *irq, uint32_t irqstatus)
	355	{
	356	struct omap_plane *omap_plane =
	357	container_of(irq, struct omap_plane, error_irq);
	358	DRM_ERROR("%s: errors: %08x\n", omap_plane->name, irqstatus);
	359	}
	360
	361	static const char *plane_names[] = {
222025e4 LP	362	[OMAP_DSS_GFX] = "gfx",
	363	[OMAP_DSS_VIDEO1] = "vid1",
	364	[OMAP_DSS_VIDEO2] = "vid2",
	365	[OMAP_DSS_VIDEO3] = "vid3",
f5f9454c RC	366	};
	367
	368	static const uint32_t error_irqs[] = {
222025e4 LP	369	[OMAP_DSS_GFX] = DISPC_IRQ_GFX_FIFO_UNDERFLOW,
	370	[OMAP_DSS_VIDEO1] = DISPC_IRQ_VID1_FIFO_UNDERFLOW,
	371	[OMAP_DSS_VIDEO2] = DISPC_IRQ_VID2_FIFO_UNDERFLOW,
	372	[OMAP_DSS_VIDEO3] = DISPC_IRQ_VID3_FIFO_UNDERFLOW,
f5f9454c RC	373	};
f5f9454c RC	374
bb5c2d9a RC	375	/* initialize plane */
bb5c2d9a RC	376	struct drm_plane omap_plane_init(struct drm_device dev,
ef6b0e02	377	int id, enum drm_plane_type type)
bb5c2d9a	378	{
f5f9454c	379	struct omap_drm_private *priv = dev->dev_private;
ef6b0e02	380	struct drm_plane *plane;
bb5c2d9a	381	struct omap_plane *omap_plane;
f5f9454c	382	struct omap_overlay_info *info;
ef6b0e02	383	int ret;
bb5c2d9a	384
ef6b0e02	385	DBG("%s: type=%d", plane_names[id], type);
b33f34d3	386
bb5c2d9a	387	omap_plane = kzalloc(sizeof(*omap_plane), GFP_KERNEL);
78110bb8	388	if (!omap_plane)
fb9a35f8	389	return ERR_PTR(-ENOMEM);
bb5c2d9a	390
d7f8db53	391	drm_flip_work_init(&omap_plane->unpin_work,
5833bd2f	392	"unpin", unpin_worker);
b33f34d3	393
a890e662 RC	394	omap_plane->nformats = omap_framebuffer_get_formats(
a890e662 RC	395	omap_plane->formats, ARRAY_SIZE(omap_plane->formats),
f5f9454c RC	396	dss_feat_get_supported_color_modes(id));
	397	omap_plane->id = id;
	398	omap_plane->name = plane_names[id];
	399
bb5c2d9a RC	400	plane = &omap_plane->base;
bb5c2d9a RC	401
f5f9454c RC	402	omap_plane->apply.pre_apply = omap_plane_pre_apply;
	403	omap_plane->apply.post_apply = omap_plane_post_apply;
	404
	405	omap_plane->error_irq.irqmask = error_irqs[id];
	406	omap_plane->error_irq.irq = omap_plane_error_irq;
	407	omap_irq_register(dev, &omap_plane->error_irq);
	408
ef6b0e02 LP	409	ret = drm_universal_plane_init(dev, plane, (1 << priv->num_crtcs) - 1,
	410	&omap_plane_funcs, omap_plane->formats,
	411	omap_plane->nformats, type);
	412	if (ret < 0)
	413	goto error;
bb5c2d9a	414
3c810c61 RC	415	omap_plane_install_properties(plane, &plane->base);
3c810c61 RC	416
bb5c2d9a RC	417	/* get our starting configuration, set defaults for parameters
	418	* we don't currently use, etc:
	419	*/
f5f9454c RC	420	info = &omap_plane->info;
	421	info->rotation_type = OMAP_DSS_ROT_DMA;
	422	info->rotation = OMAP_DSS_ROT_0;
	423	info->global_alpha = 0xff;
	424	info->mirror = 0;
bb5c2d9a RC	425
	426	/* Set defaults depending on whether we are a CRTC or overlay
	427	* layer.
	428	* TODO add ioctl to give userspace an API to change this.. this
	429	* will come in a subsequent patch.
	430	*/
ef6b0e02	431	if (type == DRM_PLANE_TYPE_PRIMARY)
bb5c2d9a RC	432	omap_plane->info.zorder = 0;
bb5c2d9a RC	433	else
f5f9454c	434	omap_plane->info.zorder = id;
bb5c2d9a RC	435
bb5c2d9a RC	436	return plane;
ef6b0e02 LP	437
	438	error:
	439	omap_irq_unregister(plane->dev, &omap_plane->error_irq);
	440	kfree(omap_plane);
	441	return NULL;
bb5c2d9a	442	}