[deliverable/linux.git] / drivers / gpu / drm / sti / sti_crtc.c

/*
 * 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 <linux/clk.h>

#include <drm/drmP.h>
#include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_plane_helper.h>

#include "sti_compositor.h"
#include "sti_crtc.h"
#include "sti_drv.h"
#include "sti_vid.h"
#include "sti_vtg.h"

static void sti_crtc_enable(struct drm_crtc *crtc)
{
	struct sti_mixer *mixer = to_sti_mixer(crtc);
	struct device *dev = mixer->dev;
	struct sti_compositor *compo = dev_get_drvdata(dev);

	DRM_DEBUG_DRIVER("\n");

	mixer->status = STI_MIXER_READY;

	/* Prepare and enable the compo IP clock */
	if (mixer->id == STI_MIXER_MAIN) {
		if (clk_prepare_enable(compo->clk_compo_main))
			DRM_INFO("Failed to prepare/enable compo_main clk\n");
	} else {
		if (clk_prepare_enable(compo->clk_compo_aux))
			DRM_INFO("Failed to prepare/enable compo_aux clk\n");
	}

	drm_crtc_vblank_on(crtc);
}

static void sti_crtc_disabling(struct drm_crtc *crtc)
{
	struct sti_mixer *mixer = to_sti_mixer(crtc);

	DRM_DEBUG_DRIVER("\n");

	mixer->status = STI_MIXER_DISABLING;
}

static int
sti_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *mode)
{
	struct sti_mixer *mixer = to_sti_mixer(crtc);
	struct device *dev = mixer->dev;
	struct sti_compositor *compo = dev_get_drvdata(dev);
	struct clk *clk;
	int rate = mode->clock * 1000;
	int res;

	DRM_DEBUG_KMS("CRTC:%d (%s) mode:%d (%s)\n",
		      crtc->base.id, sti_mixer_to_str(mixer),
		      mode->base.id, mode->name);

	DRM_DEBUG_KMS("%d %d %d %d %d %d %d %d %d %d 0x%x 0x%x\n",
		      mode->vrefresh, mode->clock,
		      mode->hdisplay,
		      mode->hsync_start, mode->hsync_end,
		      mode->htotal,
		      mode->vdisplay,
		      mode->vsync_start, mode->vsync_end,
		      mode->vtotal, mode->type, mode->flags);

	/* Set rate and prepare/enable pixel clock */
	if (mixer->id == STI_MIXER_MAIN)
		clk = compo->clk_pix_main;
	else
		clk = compo->clk_pix_aux;

	res = clk_set_rate(clk, rate);
	if (res < 0) {
		DRM_ERROR("Cannot set rate (%dHz) for pix clk\n", rate);
		return -EINVAL;
	}
	if (clk_prepare_enable(clk)) {
		DRM_ERROR("Failed to prepare/enable pix clk\n");
		return -EINVAL;
	}

	sti_vtg_set_config(mixer->id == STI_MIXER_MAIN ?
			compo->vtg_main : compo->vtg_aux, &crtc->mode);

	res = sti_mixer_active_video_area(mixer, &crtc->mode);
	if (res) {
		DRM_ERROR("Can't set active video area\n");
		return -EINVAL;
	}

	return res;
}

static void sti_crtc_disable(struct drm_crtc *crtc)
{
	struct sti_mixer *mixer = to_sti_mixer(crtc);
	struct device *dev = mixer->dev;
	struct sti_compositor *compo = dev_get_drvdata(dev);

	DRM_DEBUG_KMS("CRTC:%d (%s)\n", crtc->base.id, sti_mixer_to_str(mixer));

	/* Disable Background */
	sti_mixer_set_background_status(mixer, false);

	drm_crtc_vblank_off(crtc);

	/* Disable pixel clock and compo IP clocks */
	if (mixer->id == STI_MIXER_MAIN) {
		clk_disable_unprepare(compo->clk_pix_main);
		clk_disable_unprepare(compo->clk_compo_main);
	} else {
		clk_disable_unprepare(compo->clk_pix_aux);
		clk_disable_unprepare(compo->clk_compo_aux);
	}

	mixer->status = STI_MIXER_DISABLED;
}

static void
sti_crtc_mode_set_nofb(struct drm_crtc *crtc)
{
	sti_crtc_enable(crtc);
	sti_crtc_mode_set(crtc, &crtc->state->adjusted_mode);
}

static void sti_crtc_atomic_begin(struct drm_crtc *crtc,
				  struct drm_crtc_state *old_crtc_state)
{
	struct sti_mixer *mixer = to_sti_mixer(crtc);

	if (crtc->state->event) {
		crtc->state->event->pipe = drm_crtc_index(crtc);

		WARN_ON(drm_crtc_vblank_get(crtc) != 0);

		mixer->pending_event = crtc->state->event;
		crtc->state->event = NULL;
	}
}

static void sti_crtc_atomic_flush(struct drm_crtc *crtc,
				  struct drm_crtc_state *old_crtc_state)
{
	struct drm_device *drm_dev = crtc->dev;
	struct sti_mixer *mixer = to_sti_mixer(crtc);
	struct sti_compositor *compo = dev_get_drvdata(mixer->dev);
	struct drm_plane *p;

	DRM_DEBUG_DRIVER("\n");

	/* perform plane actions */
	list_for_each_entry(p, &drm_dev->mode_config.plane_list, head) {
		struct sti_plane *plane = to_sti_plane(p);

		switch (plane->status) {
		case STI_PLANE_UPDATED:
			/* update planes tag as updated */
			DRM_DEBUG_DRIVER("update plane %s\n",
					 sti_plane_to_str(plane));

			if (sti_mixer_set_plane_depth(mixer, plane)) {
				DRM_ERROR("Cannot set plane %s depth\n",
					  sti_plane_to_str(plane));
				break;
			}

			if (sti_mixer_set_plane_status(mixer, plane, true)) {
				DRM_ERROR("Cannot enable plane %s at mixer\n",
					  sti_plane_to_str(plane));
				break;
			}

			/* if plane is HQVDP_0 then commit the vid[0] */
			if (plane->desc == STI_HQVDP_0)
				sti_vid_commit(compo->vid[0], p->state);

			plane->status = STI_PLANE_READY;

			break;
		case STI_PLANE_DISABLING:
			/* disabling sequence for planes tag as disabling */
			DRM_DEBUG_DRIVER("disable plane %s from mixer\n",
					 sti_plane_to_str(plane));

			if (sti_mixer_set_plane_status(mixer, plane, false)) {
				DRM_ERROR("Cannot disable plane %s at mixer\n",
					  sti_plane_to_str(plane));
				continue;
			}

			if (plane->desc == STI_CURSOR)
				/* tag plane status for disabled */
				plane->status = STI_PLANE_DISABLED;
			else
				/* tag plane status for flushing */
				plane->status = STI_PLANE_FLUSHING;

			/* if plane is HQVDP_0 then disable the vid[0] */
			if (plane->desc == STI_HQVDP_0)
				sti_vid_disable(compo->vid[0]);

			break;
		default:
			/* Other status case are not handled */
			break;
		}
	}
}

static const struct drm_crtc_helper_funcs sti_crtc_helper_funcs = {
	.enable = sti_crtc_enable,
	.disable = sti_crtc_disabling,
	.mode_set = drm_helper_crtc_mode_set,
	.mode_set_nofb = sti_crtc_mode_set_nofb,
	.mode_set_base = drm_helper_crtc_mode_set_base,
	.atomic_begin = sti_crtc_atomic_begin,
	.atomic_flush = sti_crtc_atomic_flush,
};

static void sti_crtc_destroy(struct drm_crtc *crtc)
{
	DRM_DEBUG_KMS("\n");
	drm_crtc_cleanup(crtc);
}

static int sti_crtc_set_property(struct drm_crtc *crtc,
				 struct drm_property *property,
				 uint64_t val)
{
	DRM_DEBUG_KMS("\n");
	return 0;
}

int sti_crtc_vblank_cb(struct notifier_block *nb,
		       unsigned long event, void *data)
{
	struct sti_compositor *compo =
		container_of(nb, struct sti_compositor, vtg_vblank_nb);
	struct drm_crtc *crtc = data;
	struct sti_mixer *mixer;
	unsigned long flags;
	struct sti_private *priv;
	unsigned int pipe;

	priv = crtc->dev->dev_private;
	pipe = drm_crtc_index(crtc);
	mixer = compo->mixer[pipe];

	if ((event != VTG_TOP_FIELD_EVENT) &&
	    (event != VTG_BOTTOM_FIELD_EVENT)) {
		DRM_ERROR("unknown event: %lu\n", event);
		return -EINVAL;
	}

	drm_crtc_handle_vblank(crtc);

	spin_lock_irqsave(&crtc->dev->event_lock, flags);
	if (mixer->pending_event) {
		drm_crtc_send_vblank_event(crtc, mixer->pending_event);
		drm_crtc_vblank_put(crtc);
		mixer->pending_event = NULL;
	}
	spin_unlock_irqrestore(&crtc->dev->event_lock, flags);

	if (mixer->status == STI_MIXER_DISABLING) {
		struct drm_plane *p;

		/* Disable mixer only if all overlay planes (GDP and VDP)
		 * are disabled */
		list_for_each_entry(p, &crtc->dev->mode_config.plane_list,
				    head) {
			struct sti_plane *plane = to_sti_plane(p);

			if ((plane->desc & STI_PLANE_TYPE_MASK) <= STI_VDP)
				if (plane->status != STI_PLANE_DISABLED)
					return 0;
		}
		sti_crtc_disable(crtc);
	}

	return 0;
}

int sti_crtc_enable_vblank(struct drm_device *dev, unsigned int pipe)
{
	struct sti_private *dev_priv = dev->dev_private;
	struct sti_compositor *compo = dev_priv->compo;
	struct notifier_block *vtg_vblank_nb = &compo->vtg_vblank_nb;
	struct drm_crtc *crtc = &compo->mixer[pipe]->drm_crtc;

	DRM_DEBUG_DRIVER("\n");

	if (sti_vtg_register_client(pipe == STI_MIXER_MAIN ?
			compo->vtg_main : compo->vtg_aux,
			vtg_vblank_nb, crtc)) {
		DRM_ERROR("Cannot register VTG notifier\n");
		return -EINVAL;
	}

	return 0;
}

void sti_crtc_disable_vblank(struct drm_device *drm_dev, unsigned int pipe)
{
	struct sti_private *priv = drm_dev->dev_private;
	struct sti_compositor *compo = priv->compo;
	struct notifier_block *vtg_vblank_nb = &compo->vtg_vblank_nb;
	struct drm_crtc *crtc = &compo->mixer[pipe]->drm_crtc;

	DRM_DEBUG_DRIVER("\n");

	if (sti_vtg_unregister_client(pipe == STI_MIXER_MAIN ?
			compo->vtg_main : compo->vtg_aux, vtg_vblank_nb))
		DRM_DEBUG_DRIVER("Warning: cannot unregister VTG notifier\n");

	/* free the resources of the pending requests */
	if (compo->mixer[pipe]->pending_event) {
		drm_crtc_vblank_put(crtc);
		compo->mixer[pipe]->pending_event = NULL;
	}
}

static const struct drm_crtc_funcs sti_crtc_funcs = {
	.set_config = drm_atomic_helper_set_config,
	.page_flip = drm_atomic_helper_page_flip,
	.destroy = sti_crtc_destroy,
	.set_property = sti_crtc_set_property,
	.reset = drm_atomic_helper_crtc_reset,
	.atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
	.atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
};

bool sti_crtc_is_main(struct drm_crtc *crtc)
{
	struct sti_mixer *mixer = to_sti_mixer(crtc);

	if (mixer->id == STI_MIXER_MAIN)
		return true;

	return false;
}

int sti_crtc_init(struct drm_device *drm_dev, struct sti_mixer *mixer,
		  struct drm_plane *primary, struct drm_plane *cursor)
{
	struct drm_crtc *crtc = &mixer->drm_crtc;
	int res;

	res = drm_crtc_init_with_planes(drm_dev, crtc, primary, cursor,
					&sti_crtc_funcs, NULL);
	if (res) {
		DRM_ERROR("Can't initialze CRTC\n");
		return -EINVAL;
	}

	drm_crtc_helper_add(crtc, &sti_crtc_helper_funcs);

	DRM_DEBUG_DRIVER("drm CRTC:%d mapped to %s\n",
			 crtc->base.id, sti_mixer_to_str(mixer));

	return 0;
}
Commit	Line	Data
9bbf86fe BG	1	/*
	2	* Copyright (C) STMicroelectronics SA 2014
	3	* Authors: Benjamin Gaignard <benjamin.gaignard@st.com>
	4	* Fabien Dessenne <fabien.dessenne@st.com>
	5	* for STMicroelectronics.
	6	* License terms: GNU General Public License (GPL), version 2
	7	*/
	8
	9	#include <linux/clk.h>
	10
	11	#include <drm/drmP.h>
de4b00b0 BG	12	#include <drm/drm_atomic.h>
de4b00b0 BG	13	#include <drm/drm_atomic_helper.h>
9bbf86fe	14	#include <drm/drm_crtc_helper.h>
3cb9ae4f	15	#include <drm/drm_plane_helper.h>
9bbf86fe BG	16
9bbf86fe BG	17	#include "sti_compositor.h"
9e1f05b2 VA	18	#include "sti_crtc.h"
9e1f05b2 VA	19	#include "sti_drv.h"
29d1dc62	20	#include "sti_vid.h"
9bbf86fe BG	21	#include "sti_vtg.h"
9bbf86fe BG	22
29d1dc62	23	static void sti_crtc_enable(struct drm_crtc *crtc)
9bbf86fe BG	24	{
	25	struct sti_mixer *mixer = to_sti_mixer(crtc);
	26	struct device *dev = mixer->dev;
	27	struct sti_compositor *compo = dev_get_drvdata(dev);
	28
29d1dc62 VA	29	DRM_DEBUG_DRIVER("\n");
	30
	31	mixer->status = STI_MIXER_READY;
9bbf86fe BG	32
	33	/* Prepare and enable the compo IP clock */
	34	if (mixer->id == STI_MIXER_MAIN) {
	35	if (clk_prepare_enable(compo->clk_compo_main))
	36	DRM_INFO("Failed to prepare/enable compo_main clk\n");
	37	} else {
	38	if (clk_prepare_enable(compo->clk_compo_aux))
	39	DRM_INFO("Failed to prepare/enable compo_aux clk\n");
	40	}
2f7d0e82	41
29d1dc62	42	drm_crtc_vblank_on(crtc);
9bbf86fe BG	43	}
9bbf86fe BG	44
29d1dc62	45	static void sti_crtc_disabling(struct drm_crtc *crtc)
9bbf86fe BG	46	{
9bbf86fe BG	47	struct sti_mixer *mixer = to_sti_mixer(crtc);
9bbf86fe	48
29d1dc62	49	DRM_DEBUG_DRIVER("\n");
ca614aad	50
29d1dc62	51	mixer->status = STI_MIXER_DISABLING;
9bbf86fe BG	52	}
9bbf86fe BG	53
9bbf86fe	54	static int
9e1f05b2	55	sti_crtc_mode_set(struct drm_crtc crtc, struct drm_display_mode mode)
9bbf86fe BG	56	{
	57	struct sti_mixer *mixer = to_sti_mixer(crtc);
	58	struct device *dev = mixer->dev;
	59	struct sti_compositor *compo = dev_get_drvdata(dev);
9bbf86fe BG	60	struct clk *clk;
	61	int rate = mode->clock * 1000;
	62	int res;
9bbf86fe	63
de4b00b0	64	DRM_DEBUG_KMS("CRTC:%d (%s) mode:%d (%s)\n",
9bbf86fe	65	crtc->base.id, sti_mixer_to_str(mixer),
de4b00b0	66	mode->base.id, mode->name);
9bbf86fe BG	67
	68	DRM_DEBUG_KMS("%d %d %d %d %d %d %d %d %d %d 0x%x 0x%x\n",
	69	mode->vrefresh, mode->clock,
	70	mode->hdisplay,
	71	mode->hsync_start, mode->hsync_end,
	72	mode->htotal,
	73	mode->vdisplay,
	74	mode->vsync_start, mode->vsync_end,
	75	mode->vtotal, mode->type, mode->flags);
	76
	77	/* Set rate and prepare/enable pixel clock */
	78	if (mixer->id == STI_MIXER_MAIN)
	79	clk = compo->clk_pix_main;
	80	else
	81	clk = compo->clk_pix_aux;
	82
	83	res = clk_set_rate(clk, rate);
	84	if (res < 0) {
	85	DRM_ERROR("Cannot set rate (%dHz) for pix clk\n", rate);
	86	return -EINVAL;
	87	}
	88	if (clk_prepare_enable(clk)) {
	89	DRM_ERROR("Failed to prepare/enable pix clk\n");
	90	return -EINVAL;
	91	}
	92
	93	sti_vtg_set_config(mixer->id == STI_MIXER_MAIN ?
	94	compo->vtg_main : compo->vtg_aux, &crtc->mode);
	95
9bbf86fe BG	96	res = sti_mixer_active_video_area(mixer, &crtc->mode);
9bbf86fe BG	97	if (res) {
871bcdfe	98	DRM_ERROR("Can't set active video area\n");
9bbf86fe BG	99	return -EINVAL;
	100	}
	101
de4b00b0	102	return res;
9bbf86fe BG	103	}
9bbf86fe BG	104
9e1f05b2	105	static void sti_crtc_disable(struct drm_crtc *crtc)
9bbf86fe BG	106	{
	107	struct sti_mixer *mixer = to_sti_mixer(crtc);
	108	struct device *dev = mixer->dev;
	109	struct sti_compositor *compo = dev_get_drvdata(dev);
9bbf86fe	110
9bbf86fe BG	111	DRM_DEBUG_KMS("CRTC:%d (%s)\n", crtc->base.id, sti_mixer_to_str(mixer));
	112
	113	/* Disable Background */
	114	sti_mixer_set_background_status(mixer, false);
	115
ca614aad	116	drm_crtc_vblank_off(crtc);
9bbf86fe BG	117
	118	/* Disable pixel clock and compo IP clocks */
	119	if (mixer->id == STI_MIXER_MAIN) {
	120	clk_disable_unprepare(compo->clk_pix_main);
	121	clk_disable_unprepare(compo->clk_compo_main);
	122	} else {
	123	clk_disable_unprepare(compo->clk_pix_aux);
	124	clk_disable_unprepare(compo->clk_compo_aux);
	125	}
	126
29d1dc62	127	mixer->status = STI_MIXER_DISABLED;
9bbf86fe BG	128	}
9bbf86fe BG	129
de4b00b0	130	static void
9e1f05b2	131	sti_crtc_mode_set_nofb(struct drm_crtc *crtc)
de4b00b0	132	{
29d1dc62	133	sti_crtc_enable(crtc);
9e1f05b2	134	sti_crtc_mode_set(crtc, &crtc->state->adjusted_mode);
de4b00b0	135	}
9bbf86fe	136
e1474e7b DA	137	static void sti_crtc_atomic_begin(struct drm_crtc *crtc,
e1474e7b DA	138	struct drm_crtc_state *old_crtc_state)
9bbf86fe	139	{
9bbf86fe	140	struct sti_mixer *mixer = to_sti_mixer(crtc);
9bbf86fe	141
de4b00b0 BG	142	if (crtc->state->event) {
de4b00b0 BG	143	crtc->state->event->pipe = drm_crtc_index(crtc);
9bbf86fe	144
de4b00b0	145	WARN_ON(drm_crtc_vblank_get(crtc) != 0);
9bbf86fe	146
de4b00b0 BG	147	mixer->pending_event = crtc->state->event;
de4b00b0 BG	148	crtc->state->event = NULL;
9bbf86fe	149	}
de4b00b0	150	}
9bbf86fe	151
e1474e7b DA	152	static void sti_crtc_atomic_flush(struct drm_crtc *crtc,
e1474e7b DA	153	struct drm_crtc_state *old_crtc_state)
de4b00b0	154	{
29d1dc62 VA	155	struct drm_device *drm_dev = crtc->dev;
	156	struct sti_mixer *mixer = to_sti_mixer(crtc);
	157	struct sti_compositor *compo = dev_get_drvdata(mixer->dev);
	158	struct drm_plane *p;
	159
	160	DRM_DEBUG_DRIVER("\n");
	161
	162	/* perform plane actions */
	163	list_for_each_entry(p, &drm_dev->mode_config.plane_list, head) {
	164	struct sti_plane *plane = to_sti_plane(p);
	165
	166	switch (plane->status) {
	167	case STI_PLANE_UPDATED:
	168	/* update planes tag as updated */
	169	DRM_DEBUG_DRIVER("update plane %s\n",
	170	sti_plane_to_str(plane));
	171
	172	if (sti_mixer_set_plane_depth(mixer, plane)) {
	173	DRM_ERROR("Cannot set plane %s depth\n",
	174	sti_plane_to_str(plane));
	175	break;
	176	}
	177
	178	if (sti_mixer_set_plane_status(mixer, plane, true)) {
	179	DRM_ERROR("Cannot enable plane %s at mixer\n",
	180	sti_plane_to_str(plane));
	181	break;
	182	}
	183
	184	/* if plane is HQVDP_0 then commit the vid[0] */
	185	if (plane->desc == STI_HQVDP_0)
	186	sti_vid_commit(compo->vid[0], p->state);
	187
	188	plane->status = STI_PLANE_READY;
	189
	190	break;
	191	case STI_PLANE_DISABLING:
	192	/* disabling sequence for planes tag as disabling */
	193	DRM_DEBUG_DRIVER("disable plane %s from mixer\n",
	194	sti_plane_to_str(plane));
	195
	196	if (sti_mixer_set_plane_status(mixer, plane, false)) {
	197	DRM_ERROR("Cannot disable plane %s at mixer\n",
	198	sti_plane_to_str(plane));
	199	continue;
	200	}
	201
	202	if (plane->desc == STI_CURSOR)
	203	/* tag plane status for disabled */
	204	plane->status = STI_PLANE_DISABLED;
	205	else
	206	/* tag plane status for flushing */
	207	plane->status = STI_PLANE_FLUSHING;
	208
	209	/* if plane is HQVDP_0 then disable the vid[0] */
	210	if (plane->desc == STI_HQVDP_0)
	211	sti_vid_disable(compo->vid[0]);
	212
	213	break;
	214	default:
	215	/* Other status case are not handled */
	216	break;
	217	}
	218	}
9bbf86fe BG	219	}
9bbf86fe BG	220
c5de4853	221	static const struct drm_crtc_helper_funcs sti_crtc_helper_funcs = {
29d1dc62 VA	222	.enable = sti_crtc_enable,
29d1dc62 VA	223	.disable = sti_crtc_disabling,
de4b00b0	224	.mode_set = drm_helper_crtc_mode_set,
9e1f05b2	225	.mode_set_nofb = sti_crtc_mode_set_nofb,
de4b00b0	226	.mode_set_base = drm_helper_crtc_mode_set_base,
9e1f05b2 VA	227	.atomic_begin = sti_crtc_atomic_begin,
9e1f05b2 VA	228	.atomic_flush = sti_crtc_atomic_flush,
de4b00b0 BG	229	};
de4b00b0 BG	230
9e1f05b2	231	static void sti_crtc_destroy(struct drm_crtc *crtc)
9bbf86fe BG	232	{
	233	DRM_DEBUG_KMS("\n");
	234	drm_crtc_cleanup(crtc);
	235	}
	236
9e1f05b2 VA	237	static int sti_crtc_set_property(struct drm_crtc *crtc,
	238	struct drm_property *property,
	239	uint64_t val)
9bbf86fe BG	240	{
	241	DRM_DEBUG_KMS("\n");
	242	return 0;
	243	}
	244
9e1f05b2 VA	245	int sti_crtc_vblank_cb(struct notifier_block *nb,
9e1f05b2 VA	246	unsigned long event, void *data)
9bbf86fe	247	{
9bbf86fe BG	248	struct sti_compositor *compo =
9bbf86fe BG	249	container_of(nb, struct sti_compositor, vtg_vblank_nb);
2388693e TR	250	struct drm_crtc *crtc = data;
2388693e TR	251	struct sti_mixer *mixer;
9bbf86fe	252	unsigned long flags;
9e1f05b2	253	struct sti_private *priv;
2388693e	254	unsigned int pipe;
9bbf86fe	255
2388693e TR	256	priv = crtc->dev->dev_private;
	257	pipe = drm_crtc_index(crtc);
	258	mixer = compo->mixer[pipe];
9bbf86fe BG	259
	260	if ((event != VTG_TOP_FIELD_EVENT) &&
	261	(event != VTG_BOTTOM_FIELD_EVENT)) {
	262	DRM_ERROR("unknown event: %lu\n", event);
	263	return -EINVAL;
	264	}
	265
2388693e	266	drm_crtc_handle_vblank(crtc);
9bbf86fe	267
2388693e TR	268	spin_lock_irqsave(&crtc->dev->event_lock, flags);
	269	if (mixer->pending_event) {
	270	drm_crtc_send_vblank_event(crtc, mixer->pending_event);
	271	drm_crtc_vblank_put(crtc);
	272	mixer->pending_event = NULL;
9bbf86fe	273	}
2388693e	274	spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
9bbf86fe	275
2388693e	276	if (mixer->status == STI_MIXER_DISABLING) {
29d1dc62 VA	277	struct drm_plane *p;
	278
	279	/* Disable mixer only if all overlay planes (GDP and VDP)
	280	* are disabled */
2388693e TR	281	list_for_each_entry(p, &crtc->dev->mode_config.plane_list,
2388693e TR	282	head) {
29d1dc62 VA	283	struct sti_plane *plane = to_sti_plane(p);
	284
	285	if ((plane->desc & STI_PLANE_TYPE_MASK) <= STI_VDP)
	286	if (plane->status != STI_PLANE_DISABLED)
	287	return 0;
	288	}
2388693e	289	sti_crtc_disable(crtc);
29d1dc62 VA	290	}
29d1dc62 VA	291
9bbf86fe BG	292	return 0;
	293	}
	294
88e72717	295	int sti_crtc_enable_vblank(struct drm_device *dev, unsigned int pipe)
9bbf86fe	296	{
9e1f05b2	297	struct sti_private *dev_priv = dev->dev_private;
9bbf86fe BG	298	struct sti_compositor *compo = dev_priv->compo;
9bbf86fe BG	299	struct notifier_block *vtg_vblank_nb = &compo->vtg_vblank_nb;
2388693e	300	struct drm_crtc *crtc = &compo->mixer[pipe]->drm_crtc;
9bbf86fe	301
871bcdfe VA	302	DRM_DEBUG_DRIVER("\n");
871bcdfe VA	303
88e72717	304	if (sti_vtg_register_client(pipe == STI_MIXER_MAIN ?
9bbf86fe	305	compo->vtg_main : compo->vtg_aux,
2388693e	306	vtg_vblank_nb, crtc)) {
9bbf86fe BG	307	DRM_ERROR("Cannot register VTG notifier\n");
	308	return -EINVAL;
	309	}
	310
	311	return 0;
	312	}
9bbf86fe	313
88e72717	314	void sti_crtc_disable_vblank(struct drm_device *drm_dev, unsigned int pipe)
9bbf86fe	315	{
29d1dc62	316	struct sti_private *priv = drm_dev->dev_private;
9bbf86fe BG	317	struct sti_compositor *compo = priv->compo;
9bbf86fe BG	318	struct notifier_block *vtg_vblank_nb = &compo->vtg_vblank_nb;
2388693e	319	struct drm_crtc *crtc = &compo->mixer[pipe]->drm_crtc;
9bbf86fe BG	320
	321	DRM_DEBUG_DRIVER("\n");
	322
88e72717	323	if (sti_vtg_unregister_client(pipe == STI_MIXER_MAIN ?
9bbf86fe BG	324	compo->vtg_main : compo->vtg_aux, vtg_vblank_nb))
	325	DRM_DEBUG_DRIVER("Warning: cannot unregister VTG notifier\n");
	326
	327	/* free the resources of the pending requests */
88e72717	328	if (compo->mixer[pipe]->pending_event) {
2388693e	329	drm_crtc_vblank_put(crtc);
88e72717	330	compo->mixer[pipe]->pending_event = NULL;
9bbf86fe	331	}
9bbf86fe	332	}
9bbf86fe	333
c5de4853	334	static const struct drm_crtc_funcs sti_crtc_funcs = {
de4b00b0 BG	335	.set_config = drm_atomic_helper_set_config,
de4b00b0 BG	336	.page_flip = drm_atomic_helper_page_flip,
9e1f05b2 VA	337	.destroy = sti_crtc_destroy,
9e1f05b2 VA	338	.set_property = sti_crtc_set_property,
de4b00b0 BG	339	.reset = drm_atomic_helper_crtc_reset,
	340	.atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
	341	.atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
9bbf86fe BG	342	};
9bbf86fe BG	343
9e1f05b2	344	bool sti_crtc_is_main(struct drm_crtc *crtc)
9bbf86fe BG	345	{
	346	struct sti_mixer *mixer = to_sti_mixer(crtc);
	347
	348	if (mixer->id == STI_MIXER_MAIN)
	349	return true;
	350
	351	return false;
	352	}
	353
9e1f05b2 VA	354	int sti_crtc_init(struct drm_device drm_dev, struct sti_mixer mixer,
9e1f05b2 VA	355	struct drm_plane primary, struct drm_plane cursor)
9bbf86fe BG	356	{
	357	struct drm_crtc *crtc = &mixer->drm_crtc;
	358	int res;
	359
	360	res = drm_crtc_init_with_planes(drm_dev, crtc, primary, cursor,
f9882876	361	&sti_crtc_funcs, NULL);
9bbf86fe	362	if (res) {
871bcdfe	363	DRM_ERROR("Can't initialze CRTC\n");
9bbf86fe BG	364	return -EINVAL;
	365	}
	366
	367	drm_crtc_helper_add(crtc, &sti_crtc_helper_funcs);
	368
	369	DRM_DEBUG_DRIVER("drm CRTC:%d mapped to %s\n",
	370	crtc->base.id, sti_mixer_to_str(mixer));
	371
	372	return 0;
	373	}