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1/* SPDX-License-Identifier: GPL-2.0 */2/*3 * (C) COPYRIGHT 2018 ARM Limited. All rights reserved.4 * Author: James.Qian.Wang <james.qian.wang@arm.com>5 *6 */7#ifndef _KOMEDA_KMS_H_8#define _KOMEDA_KMS_H_9 10#include <linux/list.h>11#include <drm/drm_atomic.h>12#include <drm/drm_atomic_helper.h>13#include <drm/drm_blend.h>14#include <drm/drm_device.h>15#include <drm/drm_writeback.h>16#include <drm/drm_print.h>17 18/**19 * struct komeda_plane - komeda instance of drm_plane20 */21struct komeda_plane {22 /** @base: &drm_plane */23 struct drm_plane base;24 /**25 * @layer:26 *27 * represents available layer input pipelines for this plane.28 *29 * NOTE:30 * the layer is not for a specific Layer, but indicate a group of31 * Layers with same capabilities.32 */33 struct komeda_layer *layer;34};35 36/**37 * struct komeda_plane_state38 *39 * The plane_state can be split into two data flow (left/right) and handled40 * by two layers &komeda_plane.layer and &komeda_plane.layer.right41 */42struct komeda_plane_state {43 /** @base: &drm_plane_state */44 struct drm_plane_state base;45 /** @zlist_node: zorder list node */46 struct list_head zlist_node;47 48 /** @layer_split: on/off layer_split */49 u8 layer_split : 1;50};51 52/**53 * struct komeda_wb_connector54 */55struct komeda_wb_connector {56 /** @base: &drm_writeback_connector */57 struct drm_writeback_connector base;58 59 /** @wb_layer: represents associated writeback pipeline of komeda */60 struct komeda_layer *wb_layer;61};62 63/**64 * struct komeda_crtc65 */66struct komeda_crtc {67 /** @base: &drm_crtc */68 struct drm_crtc base;69 /** @master: only master has display output */70 struct komeda_pipeline *master;71 /**72 * @slave: optional73 *74 * Doesn't have its own display output, the handled data flow will75 * merge into the master.76 */77 struct komeda_pipeline *slave;78 79 /** @slave_planes: komeda slave planes mask */80 u32 slave_planes;81 82 /** @wb_conn: komeda write back connector */83 struct komeda_wb_connector *wb_conn;84 85 /** @disable_done: this flip_done is for tracing the disable */86 struct completion *disable_done;87 88 /** @encoder: encoder at the end of the pipeline */89 struct drm_encoder encoder;90};91 92/**93 * struct komeda_crtc_state94 */95struct komeda_crtc_state {96 /** @base: &drm_crtc_state */97 struct drm_crtc_state base;98 99 /* private properties */100 101 /* computed state which are used by validate/check */102 /**103 * @affected_pipes:104 * the affected pipelines in once display instance105 */106 u32 affected_pipes;107 /**108 * @active_pipes:109 * the active pipelines in once display instance110 */111 u32 active_pipes;112 113 /** @clock_ratio: ratio of (aclk << 32)/pxlclk */114 u64 clock_ratio;115 116 /** @max_slave_zorder: the maximum of slave zorder */117 u32 max_slave_zorder;118};119 120/** struct komeda_kms_dev - for gather KMS related things */121struct komeda_kms_dev {122 /** @base: &drm_device */123 struct drm_device base;124 125 /** @n_crtcs: valid numbers of crtcs in &komeda_kms_dev.crtcs */126 int n_crtcs;127 /** @crtcs: crtcs list */128 struct komeda_crtc crtcs[KOMEDA_MAX_PIPELINES];129};130 131#define to_kplane(p) container_of(p, struct komeda_plane, base)132#define to_kplane_st(p) container_of(p, struct komeda_plane_state, base)133#define to_kconn(p) container_of(p, struct komeda_wb_connector, base)134#define to_kcrtc(p) container_of(p, struct komeda_crtc, base)135#define to_kcrtc_st(p) container_of(p, struct komeda_crtc_state, base)136#define to_kdev(p) container_of(p, struct komeda_kms_dev, base)137#define to_wb_conn(x) container_of(x, struct drm_writeback_connector, base)138 139static inline bool is_writeback_only(struct drm_crtc_state *st)140{141 struct komeda_wb_connector *wb_conn = to_kcrtc(st->crtc)->wb_conn;142 struct drm_connector *conn = wb_conn ? &wb_conn->base.base : NULL;143 144 return conn && (st->connector_mask == BIT(drm_connector_index(conn)));145}146 147static inline bool148is_only_changed_connector(struct drm_crtc_state *st, struct drm_connector *conn)149{150 struct drm_crtc_state *old_st;151 u32 changed_connectors;152 153 old_st = drm_atomic_get_old_crtc_state(st->state, st->crtc);154 changed_connectors = st->connector_mask ^ old_st->connector_mask;155 156 return BIT(drm_connector_index(conn)) == changed_connectors;157}158 159static inline bool has_flip_h(u32 rot)160{161 u32 rotation = drm_rotation_simplify(rot,162 DRM_MODE_ROTATE_0 |163 DRM_MODE_ROTATE_90 |164 DRM_MODE_REFLECT_MASK);165 166 if (rotation & DRM_MODE_ROTATE_90)167 return !!(rotation & DRM_MODE_REFLECT_Y);168 else169 return !!(rotation & DRM_MODE_REFLECT_X);170}171 172void komeda_crtc_get_color_config(struct drm_crtc_state *crtc_st,173 u32 *color_depths, u32 *color_formats);174unsigned long komeda_crtc_get_aclk(struct komeda_crtc_state *kcrtc_st);175 176int komeda_kms_setup_crtcs(struct komeda_kms_dev *kms, struct komeda_dev *mdev);177 178int komeda_kms_add_crtcs(struct komeda_kms_dev *kms, struct komeda_dev *mdev);179int komeda_kms_add_planes(struct komeda_kms_dev *kms, struct komeda_dev *mdev);180int komeda_kms_add_private_objs(struct komeda_kms_dev *kms,181 struct komeda_dev *mdev);182int komeda_kms_add_wb_connectors(struct komeda_kms_dev *kms,183 struct komeda_dev *mdev);184void komeda_kms_cleanup_private_objs(struct komeda_kms_dev *kms);185 186void komeda_crtc_handle_event(struct komeda_crtc *kcrtc,187 struct komeda_events *evts);188void komeda_crtc_flush_and_wait_for_flip_done(struct komeda_crtc *kcrtc,189 struct completion *input_flip_done);190 191struct komeda_kms_dev *komeda_kms_attach(struct komeda_dev *mdev);192void komeda_kms_detach(struct komeda_kms_dev *kms);193void komeda_kms_shutdown(struct komeda_kms_dev *kms);194void komeda_pipeline_dump(struct komeda_pipeline *pipe);195 196#endif /*_KOMEDA_KMS_H_*/197