drivers/amlogic/drm/meson_crtc.c - manifest_repos/kernel - Git at Google

 /*
  * drivers/amlogic/drm/meson_crtc.c
  *
  * Copyright (C) 2017 Amlogic, Inc. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
  *
  * 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.
  *
  */

 #include "meson_crtc.h"
 #include "meson_vpu_pipeline.h"
 #include "osd_drm.h"

 #define OSD_DUMP_PATH		"/tmp/osd_dump/"

 static int meson_crtc_set_mode(struct drm_mode_set *set)
 {
 	struct am_meson_crtc *amcrtc;
 	int ret;

 	DRM_DEBUG_DRIVER("%s\n", __func__);
 	amcrtc = to_am_meson_crtc(set->crtc);
 	ret = drm_atomic_helper_set_config(set);

 	return ret;
 }

 static void meson_crtc_destroy_state(struct drm_crtc *crtc,
 				   struct drm_crtc_state *state)
 {
 	struct am_meson_crtc_state *meson_crtc_state;

 	meson_crtc_state = to_am_meson_crtc_state(state);
 	__drm_atomic_helper_crtc_destroy_state(&meson_crtc_state->base);
 	kfree(meson_crtc_state);
 }

 static struct drm_crtc_state *meson_crtc_duplicate_state(struct drm_crtc *crtc)
 {
 	struct am_meson_crtc_state *meson_crtc_state, *old_crtc_state;

 	old_crtc_state = to_am_meson_crtc_state(crtc->state);

 	meson_crtc_state = kmemdup(old_crtc_state, sizeof(*old_crtc_state),
 					GFP_KERNEL);
 	if (!meson_crtc_state)
 		return NULL;

 	__drm_atomic_helper_crtc_duplicate_state(crtc, &meson_crtc_state->base);
 	return &meson_crtc_state->base;
 }

 static int meson_crtc_atomic_get_property(struct drm_crtc *crtc,
 					const struct drm_crtc_state *state,
 					struct drm_property *property,
 					uint64_t *val)
 {
 	DRM_ERROR("failed to get crtc property\n");
 	return -EINVAL;
 }

 static int meson_crtc_atomic_set_property(struct drm_crtc *crtc,
 					struct drm_crtc_state *state,
 					struct drm_property *property,
 					uint64_t val)
 {
 	DRM_ERROR("failed to set crtc property\n");
 	return -EINVAL;
 }

 static const struct drm_crtc_funcs am_meson_crtc_funcs = {
 	.atomic_destroy_state	= meson_crtc_destroy_state,
 	.atomic_duplicate_state = meson_crtc_duplicate_state,
 	.destroy		= drm_crtc_cleanup,
 	.page_flip		= drm_atomic_helper_page_flip,
 	.reset			= drm_atomic_helper_crtc_reset,
 	.set_config             = meson_crtc_set_mode,
 	.atomic_get_property = meson_crtc_atomic_get_property,
 	.atomic_set_property = meson_crtc_atomic_set_property,
 };

 static bool am_meson_crtc_mode_fixup(struct drm_crtc *crtc,
 				const struct drm_display_mode *mode,
 				struct drm_display_mode *adj_mode)
 {
 	//DRM_INFO("%s !!\n", __func__);

 	return true;
 }

 static void am_meson_crtc_enable(struct drm_crtc *crtc)
 {
 	char *name;
 	enum vmode_e mode;
 	struct drm_display_mode *adjusted_mode = &crtc->state->adjusted_mode;
 	struct am_meson_crtc *amcrtc = to_am_meson_crtc(crtc);
 	struct meson_vpu_pipeline *pipeline = amcrtc->pipeline;

 	DRM_INFO("%s\n", __func__);
 	if (!adjusted_mode) {
 		DRM_ERROR("meson_crtc_enable fail, unsupport mode:%s\n",
 			adjusted_mode->name);
 		return;
 	}
 	DRM_INFO("%s: %s\n", __func__, adjusted_mode->name);

 	name = am_meson_crtc_get_voutmode(adjusted_mode);
 	mode = validate_vmode(name);
 	if (mode == VMODE_MAX) {
 		DRM_ERROR("no matched vout mode\n");
 		return;
 	}
 	if (is_meson_g12b_cpu() && is_meson_rev_b())
 		set_reset_rdma_trigger_line();
 	set_vout_init(mode);
 	update_vout_viu();
 	memcpy(&pipeline->mode, adjusted_mode,
 		sizeof(struct drm_display_mode));
 	enable_irq(amcrtc->irq);
 }

 static void am_meson_crtc_disable(struct drm_crtc *crtc)
 {
 	struct am_meson_crtc *amcrtc = to_am_meson_crtc(crtc);

 	DRM_INFO("%s\n", __func__);
 	if (crtc->state->event && !crtc->state->active) {
 		spin_lock_irq(&crtc->dev->event_lock);
 		drm_crtc_send_vblank_event(crtc, crtc->state->event);
 		spin_unlock_irq(&crtc->dev->event_lock);
 		crtc->state->event = NULL;
 	}

 	disable_irq(amcrtc->irq);
 }

 static void am_meson_crtc_commit(struct drm_crtc *crtc)
 {
 	//DRM_INFO("%s\n", __func__);
 }

 static int am_meson_atomic_check(struct drm_crtc *crtc,
 		struct drm_crtc_state *crtc_state)
 {
 	struct am_meson_crtc *amcrtc;
 	struct meson_vpu_pipeline *pipeline;
 	struct drm_atomic_state *state = crtc_state->state;

 	amcrtc = to_am_meson_crtc(crtc);
 	pipeline = amcrtc->pipeline;

 	return vpu_pipeline_check(pipeline, state);

 }

 static void am_meson_crtc_atomic_begin(struct drm_crtc *crtc,
 			     struct drm_crtc_state *old_crtc_state)
 {
 	struct am_meson_crtc *amcrtc;
 	unsigned long flags;

 	amcrtc = to_am_meson_crtc(crtc);

 	if (crtc->state->event) {
 		WARN_ON(drm_crtc_vblank_get(crtc) != 0);

 		spin_lock_irqsave(&crtc->dev->event_lock, flags);
 		amcrtc->event = crtc->state->event;
 		spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
 		crtc->state->event = NULL;
 	}
 }

 static void am_meson_crtc_atomic_flush(struct drm_crtc *crtc,
 			     struct drm_crtc_state *old_state)
 {
 	struct drm_color_ctm *ctm;
 	struct drm_color_lut *lut;
 	struct am_meson_crtc *amcrtc = to_am_meson_crtc(crtc);
 	struct drm_atomic_state *old_atomic_state = old_state->state;
 	struct meson_drm *priv = amcrtc->priv;
 	struct meson_vpu_pipeline *pipeline = amcrtc->pipeline;
 	#ifdef CONFIG_AMLOGIC_MEDIA_ENHANCEMENT
 	int gamma_lut_size = 0;
 	#endif

 	if (crtc->state->color_mgmt_changed) {
 		DRM_DEBUG("%s color_mgmt_changed!\n", __func__);
 		if (crtc->state->ctm) {
 			DRM_DEBUG("%s color_mgmt_changed 1!\n", __func__);
 			ctm = (struct drm_color_ctm *)
 				crtc->state->ctm->data;
 			#ifdef CONFIG_AMLOGIC_MEDIA_ENHANCEMENT
 			am_meson_ctm_set(0, ctm);
 			#endif
 		} else {
 			DRM_DEBUG("%s Disable CTM!\n", __func__);
 			#ifdef CONFIG_AMLOGIC_MEDIA_ENHANCEMENT
 			am_meson_ctm_disable();
 			#endif
 		}
 	}
 	if (crtc->state->gamma_lut != priv->gamma_lut_blob) {
 		DRM_DEBUG("%s GAMMA LUT blob changed!\n", __func__);
 		drm_property_unreference_blob(priv->gamma_lut_blob);
 		priv->gamma_lut_blob = NULL;
 		if (crtc->state->gamma_lut) {
 			DRM_INFO("%s Set GAMMA\n", __func__);
 			priv->gamma_lut_blob = drm_property_reference_blob(
 				crtc->state->gamma_lut);
 			lut = (struct drm_color_lut *)
 				crtc->state->gamma_lut->data;
 			#ifdef CONFIG_AMLOGIC_MEDIA_ENHANCEMENT
 			gamma_lut_size = amvecm_drm_get_gamma_size(0);
 			amvecm_drm_gamma_set(0, lut, gamma_lut_size);
 			#endif
 		} else {
 			DRM_DEBUG("%s Disable GAMMA!\n", __func__);
 			#ifdef CONFIG_AMLOGIC_MEDIA_ENHANCEMENT
 			amvecm_drm_gamma_disable(0);
 			#endif
 		}
 	}

 	vpu_pipeline_update(pipeline, old_atomic_state);
 }

 static const struct drm_crtc_helper_funcs am_crtc_helper_funcs = {
 	.enable			= am_meson_crtc_enable,
 	.disable			= am_meson_crtc_disable,
 	.commit			= am_meson_crtc_commit,
 	.mode_fixup		= am_meson_crtc_mode_fixup,
 	.atomic_check	= am_meson_atomic_check,
 	.atomic_begin	= am_meson_crtc_atomic_begin,
 	.atomic_flush		= am_meson_crtc_atomic_flush,
 };

 int am_meson_crtc_create(struct am_meson_crtc *amcrtc)
 {
 	struct meson_drm *priv = amcrtc->priv;
 	struct drm_crtc *crtc = &amcrtc->base;
 	struct meson_vpu_pipeline *pipeline = priv->pipeline;
 	#ifdef CONFIG_AMLOGIC_MEDIA_ENHANCEMENT
 	int gamma_lut_size = 0;
 	#endif
 	int ret;

 	DRM_INFO("%s\n", __func__);
 	ret = drm_crtc_init_with_planes(priv->drm, crtc,
 					priv->primary_plane, priv->cursor_plane,
 					&am_meson_crtc_funcs, "amlogic vpu");
 	if (ret) {
 		dev_err(amcrtc->dev, "Failed to init CRTC\n");
 		return ret;
 	}

 	drm_crtc_helper_add(crtc, &am_crtc_helper_funcs);
 	osd_drm_init(&osd_meson_dev);

 	#ifdef CONFIG_AMLOGIC_MEDIA_ENHANCEMENT
 	amvecm_drm_init(0);
 	gamma_lut_size = amvecm_drm_get_gamma_size(0);
 	drm_mode_crtc_set_gamma_size(crtc, gamma_lut_size);
 	drm_crtc_enable_color_mgmt(crtc, 0, true, gamma_lut_size);
 	#endif

 	amcrtc->pipeline = pipeline;
 	pipeline->crtc = crtc;
 	strcpy(amcrtc->osddump_path, OSD_DUMP_PATH);
 	priv->crtc = crtc;
 	priv->crtcs[priv->num_crtcs++] = amcrtc;

 	return 0;
 }
	/*
	* drivers/amlogic/drm/meson_crtc.c
	*
	* Copyright (C) 2017 Amlogic, Inc. All rights reserved.
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation; either version 2 of the License, or
	* (at your option) any later version.
	*
	* 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.
	*
	*/

	#include "meson_crtc.h"
	#include "meson_vpu_pipeline.h"
	#include "osd_drm.h"

	#define OSD_DUMP_PATH "/tmp/osd_dump/"

	static int meson_crtc_set_mode(struct drm_mode_set *set)
	{
	struct am_meson_crtc *amcrtc;
	int ret;

	DRM_DEBUG_DRIVER("%s\n", __func__);
	amcrtc = to_am_meson_crtc(set->crtc);
	ret = drm_atomic_helper_set_config(set);

	return ret;
	}

	static void meson_crtc_destroy_state(struct drm_crtc *crtc,
	struct drm_crtc_state *state)
	{
	struct am_meson_crtc_state *meson_crtc_state;

	meson_crtc_state = to_am_meson_crtc_state(state);
	__drm_atomic_helper_crtc_destroy_state(&meson_crtc_state->base);
	kfree(meson_crtc_state);
	}

	static struct drm_crtc_state meson_crtc_duplicate_state(struct drm_crtc crtc)
	{
	struct am_meson_crtc_state meson_crtc_state, old_crtc_state;

	old_crtc_state = to_am_meson_crtc_state(crtc->state);

	meson_crtc_state = kmemdup(old_crtc_state, sizeof(*old_crtc_state),
	GFP_KERNEL);
	if (!meson_crtc_state)
	return NULL;

	__drm_atomic_helper_crtc_duplicate_state(crtc, &meson_crtc_state->base);
	return &meson_crtc_state->base;
	}

	static int meson_crtc_atomic_get_property(struct drm_crtc *crtc,
	const struct drm_crtc_state *state,
	struct drm_property *property,
	uint64_t *val)
	{
	DRM_ERROR("failed to get crtc property\n");
	return -EINVAL;
	}

	static int meson_crtc_atomic_set_property(struct drm_crtc *crtc,
	struct drm_crtc_state *state,
	struct drm_property *property,
	uint64_t val)
	{
	DRM_ERROR("failed to set crtc property\n");
	return -EINVAL;
	}

	static const struct drm_crtc_funcs am_meson_crtc_funcs = {
	.atomic_destroy_state = meson_crtc_destroy_state,
	.atomic_duplicate_state = meson_crtc_duplicate_state,
	.destroy = drm_crtc_cleanup,
	.page_flip = drm_atomic_helper_page_flip,
	.reset = drm_atomic_helper_crtc_reset,
	.set_config = meson_crtc_set_mode,
	.atomic_get_property = meson_crtc_atomic_get_property,
	.atomic_set_property = meson_crtc_atomic_set_property,
	};

	static bool am_meson_crtc_mode_fixup(struct drm_crtc *crtc,
	const struct drm_display_mode *mode,
	struct drm_display_mode *adj_mode)
	{
	//DRM_INFO("%s !!\n", __func__);

	return true;
	}

	static void am_meson_crtc_enable(struct drm_crtc *crtc)
	{
	char *name;
	enum vmode_e mode;
	struct drm_display_mode *adjusted_mode = &crtc->state->adjusted_mode;
	struct am_meson_crtc *amcrtc = to_am_meson_crtc(crtc);
	struct meson_vpu_pipeline *pipeline = amcrtc->pipeline;

	DRM_INFO("%s\n", __func__);
	if (!adjusted_mode) {
	DRM_ERROR("meson_crtc_enable fail, unsupport mode:%s\n",
	adjusted_mode->name);
	return;
	}
	DRM_INFO("%s: %s\n", __func__, adjusted_mode->name);

	name = am_meson_crtc_get_voutmode(adjusted_mode);
	mode = validate_vmode(name);
	if (mode == VMODE_MAX) {
	DRM_ERROR("no matched vout mode\n");
	return;
	}
	if (is_meson_g12b_cpu() && is_meson_rev_b())
	set_reset_rdma_trigger_line();
	set_vout_init(mode);
	update_vout_viu();
	memcpy(&pipeline->mode, adjusted_mode,
	sizeof(struct drm_display_mode));
	enable_irq(amcrtc->irq);
	}

	static void am_meson_crtc_disable(struct drm_crtc *crtc)
	{
	struct am_meson_crtc *amcrtc = to_am_meson_crtc(crtc);

	DRM_INFO("%s\n", __func__);
	if (crtc->state->event && !crtc->state->active) {
	spin_lock_irq(&crtc->dev->event_lock);
	drm_crtc_send_vblank_event(crtc, crtc->state->event);
	spin_unlock_irq(&crtc->dev->event_lock);
	crtc->state->event = NULL;
	}

	disable_irq(amcrtc->irq);
	}

	static void am_meson_crtc_commit(struct drm_crtc *crtc)
	{
	//DRM_INFO("%s\n", __func__);
	}

	static int am_meson_atomic_check(struct drm_crtc *crtc,
	struct drm_crtc_state *crtc_state)
	{
	struct am_meson_crtc *amcrtc;
	struct meson_vpu_pipeline *pipeline;
	struct drm_atomic_state *state = crtc_state->state;

	amcrtc = to_am_meson_crtc(crtc);
	pipeline = amcrtc->pipeline;

	return vpu_pipeline_check(pipeline, state);

	}

	static void am_meson_crtc_atomic_begin(struct drm_crtc *crtc,
	struct drm_crtc_state *old_crtc_state)
	{
	struct am_meson_crtc *amcrtc;
	unsigned long flags;

	amcrtc = to_am_meson_crtc(crtc);

	if (crtc->state->event) {
	WARN_ON(drm_crtc_vblank_get(crtc) != 0);

	spin_lock_irqsave(&crtc->dev->event_lock, flags);
	amcrtc->event = crtc->state->event;
	spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
	crtc->state->event = NULL;
	}
	}

	static void am_meson_crtc_atomic_flush(struct drm_crtc *crtc,
	struct drm_crtc_state *old_state)
	{
	struct drm_color_ctm *ctm;
	struct drm_color_lut *lut;
	struct am_meson_crtc *amcrtc = to_am_meson_crtc(crtc);
	struct drm_atomic_state *old_atomic_state = old_state->state;
	struct meson_drm *priv = amcrtc->priv;
	struct meson_vpu_pipeline *pipeline = amcrtc->pipeline;
	#ifdef CONFIG_AMLOGIC_MEDIA_ENHANCEMENT
	int gamma_lut_size = 0;
	#endif

	if (crtc->state->color_mgmt_changed) {
	DRM_DEBUG("%s color_mgmt_changed!\n", __func__);
	if (crtc->state->ctm) {
	DRM_DEBUG("%s color_mgmt_changed 1!\n", __func__);
	ctm = (struct drm_color_ctm *)
	crtc->state->ctm->data;
	#ifdef CONFIG_AMLOGIC_MEDIA_ENHANCEMENT
	am_meson_ctm_set(0, ctm);
	#endif
	} else {
	DRM_DEBUG("%s Disable CTM!\n", __func__);
	#ifdef CONFIG_AMLOGIC_MEDIA_ENHANCEMENT
	am_meson_ctm_disable();
	#endif
	}
	}
	if (crtc->state->gamma_lut != priv->gamma_lut_blob) {
	DRM_DEBUG("%s GAMMA LUT blob changed!\n", __func__);
	drm_property_unreference_blob(priv->gamma_lut_blob);
	priv->gamma_lut_blob = NULL;
	if (crtc->state->gamma_lut) {
	DRM_INFO("%s Set GAMMA\n", __func__);
	priv->gamma_lut_blob = drm_property_reference_blob(
	crtc->state->gamma_lut);
	lut = (struct drm_color_lut *)
	crtc->state->gamma_lut->data;
	#ifdef CONFIG_AMLOGIC_MEDIA_ENHANCEMENT
	gamma_lut_size = amvecm_drm_get_gamma_size(0);
	amvecm_drm_gamma_set(0, lut, gamma_lut_size);
	#endif
	} else {
	DRM_DEBUG("%s Disable GAMMA!\n", __func__);
	#ifdef CONFIG_AMLOGIC_MEDIA_ENHANCEMENT
	amvecm_drm_gamma_disable(0);
	#endif
	}
	}

	vpu_pipeline_update(pipeline, old_atomic_state);
	}

	static const struct drm_crtc_helper_funcs am_crtc_helper_funcs = {
	.enable = am_meson_crtc_enable,
	.disable = am_meson_crtc_disable,
	.commit = am_meson_crtc_commit,
	.mode_fixup = am_meson_crtc_mode_fixup,
	.atomic_check = am_meson_atomic_check,
	.atomic_begin = am_meson_crtc_atomic_begin,
	.atomic_flush = am_meson_crtc_atomic_flush,
	};

	int am_meson_crtc_create(struct am_meson_crtc *amcrtc)
	{
	struct meson_drm *priv = amcrtc->priv;
	struct drm_crtc *crtc = &amcrtc->base;
	struct meson_vpu_pipeline *pipeline = priv->pipeline;
	#ifdef CONFIG_AMLOGIC_MEDIA_ENHANCEMENT
	int gamma_lut_size = 0;
	#endif
	int ret;

	DRM_INFO("%s\n", __func__);
	ret = drm_crtc_init_with_planes(priv->drm, crtc,
	priv->primary_plane, priv->cursor_plane,
	&am_meson_crtc_funcs, "amlogic vpu");
	if (ret) {
	dev_err(amcrtc->dev, "Failed to init CRTC\n");
	return ret;
	}

	drm_crtc_helper_add(crtc, &am_crtc_helper_funcs);
	osd_drm_init(&osd_meson_dev);

	#ifdef CONFIG_AMLOGIC_MEDIA_ENHANCEMENT
	amvecm_drm_init(0);
	gamma_lut_size = amvecm_drm_get_gamma_size(0);
	drm_mode_crtc_set_gamma_size(crtc, gamma_lut_size);
	drm_crtc_enable_color_mgmt(crtc, 0, true, gamma_lut_size);
	#endif

	amcrtc->pipeline = pipeline;
	pipeline->crtc = crtc;
	strcpy(amcrtc->osddump_path, OSD_DUMP_PATH);
	priv->crtc = crtc;
	priv->crtcs[priv->num_crtcs++] = amcrtc;

	return 0;
	}