/* SPDX-License-Identifier: GPL-2.0 */ /* * (C) COPYRIGHT 2018 ARM Limited. All rights reserved. * Author: James.Qian.Wang * */ #ifndef _KOMEDA_PIPELINE_H_ #define _KOMEDA_PIPELINE_H_ #include #include #include #include "malidp_utils.h" #define KOMEDA_MAX_PIPELINES 2 #define KOMEDA_PIPELINE_MAX_LAYERS 4 #define KOMEDA_PIPELINE_MAX_SCALERS 2 #define KOMEDA_COMPONENT_N_INPUTS 5 /* pipeline component IDs */ enum { KOMEDA_COMPONENT_LAYER0 = 0, KOMEDA_COMPONENT_LAYER1 = 1, KOMEDA_COMPONENT_LAYER2 = 2, KOMEDA_COMPONENT_LAYER3 = 3, KOMEDA_COMPONENT_WB_LAYER = 7, /* write back layer */ KOMEDA_COMPONENT_SCALER0 = 8, KOMEDA_COMPONENT_SCALER1 = 9, KOMEDA_COMPONENT_SPLITTER = 12, KOMEDA_COMPONENT_MERGER = 14, KOMEDA_COMPONENT_COMPIZ0 = 16, /* compositor */ KOMEDA_COMPONENT_COMPIZ1 = 17, KOMEDA_COMPONENT_IPS0 = 20, /* post image processor */ KOMEDA_COMPONENT_IPS1 = 21, KOMEDA_COMPONENT_TIMING_CTRLR = 22, /* timing controller */ }; #define KOMEDA_PIPELINE_LAYERS (BIT(KOMEDA_COMPONENT_LAYER0) |\ BIT(KOMEDA_COMPONENT_LAYER1) |\ BIT(KOMEDA_COMPONENT_LAYER2) |\ BIT(KOMEDA_COMPONENT_LAYER3)) #define KOMEDA_PIPELINE_SCALERS (BIT(KOMEDA_COMPONENT_SCALER0) |\ BIT(KOMEDA_COMPONENT_SCALER1)) #define KOMEDA_PIPELINE_COMPIZS (BIT(KOMEDA_COMPONENT_COMPIZ0) |\ BIT(KOMEDA_COMPONENT_COMPIZ1)) #define KOMEDA_PIPELINE_IMPROCS (BIT(KOMEDA_COMPONENT_IPS0) |\ BIT(KOMEDA_COMPONENT_IPS1)) struct komeda_component; struct komeda_component_state; /** komeda_component_funcs - component control functions */ struct komeda_component_funcs { /** @validate: optional, * component may has special requirements or limitations, this function * supply HW the ability to do the further HW specific check. */ int (*validate)(struct komeda_component *c, struct komeda_component_state *state); /** @update: update is a active update */ void (*update)(struct komeda_component *c, struct komeda_component_state *state); /** @disable: disable component */ void (*disable)(struct komeda_component *c); /** @dump_register: Optional, dump registers to seq_file */ void (*dump_register)(struct komeda_component *c, struct seq_file *seq); }; /** * struct komeda_component * * struct komeda_component describe the data flow capabilities for how to link a * component into the display pipeline. * all specified components are subclass of this structure. */ struct komeda_component { /** @obj: treat component as private obj */ struct drm_private_obj obj; /** @pipeline: the komeda pipeline this component belongs to */ struct komeda_pipeline *pipeline; /** @name: component name */ char name[32]; /** * @reg: * component register base, * which is initialized by chip and used by chip only */ u32 __iomem *reg; /** @id: component id */ u32 id; /** @hw_ic: component hw id, * which is initialized by chip and used by chip only */ u32 hw_id; /** * @max_active_inputs: * @max_active_outpus: * * maximum number of inputs/outputs that can be active in the same time * Note: * the number isn't the bit number of @supported_inputs or * @supported_outputs, but may be less than it, since component may not * support enabling all @supported_inputs/outputs at the same time. */ u8 max_active_inputs; u8 max_active_outputs; /** * @supported_inputs: * @supported_outputs: * * bitmask of BIT(component->id) for the supported inputs/outputs * describes the possibilities of how a component is linked into a * pipeline. */ u32 supported_inputs; u32 supported_outputs; /** * @funcs: chip functions to access HW */ struct komeda_component_funcs *funcs; }; /** * struct komeda_component_output * * a component has multiple outputs, if want to know where the data * comes from, only know the component is not enough, we still need to know * its output port */ struct komeda_component_output { /** @component: indicate which component the data comes from */ struct komeda_component *component; /** @output_port: * the output port of the &komeda_component_output.component */ u8 output_port; }; /** * struct komeda_component_state * * component_state is the data flow configuration of the component, and it's * the superclass of all specific component_state like @komeda_layer_state, * @komeda_scaler_state */ struct komeda_component_state { /** @obj: tracking component_state by drm_atomic_state */ struct drm_private_state obj; struct komeda_component *component; /** * @binding_user: * currently bound user, the user can be crtc/plane/wb_conn, which is * valid decided by @component and @inputs * * - Layer: its user always is plane. * - compiz/improc/timing_ctrlr: the user is crtc. * - wb_layer: wb_conn; * - scaler: plane when input is layer, wb_conn if input is compiz. */ union { struct drm_crtc *crtc; struct drm_plane *plane; struct drm_connector *wb_conn; void *binding_user; }; /** * @active_inputs: * * active_inputs is bitmask of @inputs index * * - active_inputs = changed_active_inputs + unchanged_active_inputs * - affected_inputs = old->active_inputs + new->active_inputs; * - disabling_inputs = affected_inputs ^ active_inputs; * - changed_inputs = disabling_inputs + changed_active_inputs; * * NOTE: * changed_inputs doesn't include all active_input but only * @changed_active_inputs, and this bitmask can be used in chip * level for dirty update. */ u16 active_inputs; u16 changed_active_inputs; u16 affected_inputs; /** * @inputs: * * the specific inputs[i] only valid on BIT(i) has been set in * @active_inputs, if not the inputs[i] is undefined. */ struct komeda_component_output inputs[KOMEDA_COMPONENT_N_INPUTS]; }; static inline u16 component_disabling_inputs(struct komeda_component_state *st) { return st->affected_inputs ^ st->active_inputs; } static inline u16 component_changed_inputs(struct komeda_component_state *st) { return component_disabling_inputs(st) | st->changed_active_inputs; } #define to_comp(__c) (((__c) == NULL) ? NULL : &((__c)->base)) #define to_cpos(__c) ((struct komeda_component **)&(__c)) /* these structures are going to be filled in in uture patches */ struct komeda_layer { struct komeda_component base; /* layer specific features and caps */ int layer_type; /* RICH, SIMPLE or WB */ }; struct komeda_layer_state { struct komeda_component_state base; /* layer specific configuration state */ }; struct komeda_compiz { struct komeda_component base; /* compiz specific features and caps */ }; struct komeda_compiz_state { struct komeda_component_state base; /* compiz specific configuration state */ }; struct komeda_scaler { struct komeda_component base; /* scaler features and caps */ }; struct komeda_scaler_state { struct komeda_component_state base; }; struct komeda_improc { struct komeda_component base; }; struct komeda_improc_state { struct komeda_component_state base; }; /* display timing controller */ struct komeda_timing_ctrlr { struct komeda_component base; }; struct komeda_timing_ctrlr_state { struct komeda_component_state base; }; /** struct komeda_pipeline_funcs */ struct komeda_pipeline_funcs { /* dump_register: Optional, dump registers to seq_file */ void (*dump_register)(struct komeda_pipeline *pipe, struct seq_file *sf); }; /** * struct komeda_pipeline * * Represent a complete display pipeline and hold all functional components. */ struct komeda_pipeline { /** @obj: link pipeline as private obj of drm_atomic_state */ struct drm_private_obj obj; /** @mdev: the parent komeda_dev */ struct komeda_dev *mdev; /** @pxlclk: pixel clock */ struct clk *pxlclk; /** @aclk: AXI clock */ struct clk *aclk; /** @id: pipeline id */ int id; /** @avail_comps: available components mask of pipeline */ u32 avail_comps; int n_layers; struct komeda_layer *layers[KOMEDA_PIPELINE_MAX_LAYERS]; int n_scalers; struct komeda_scaler *scalers[KOMEDA_PIPELINE_MAX_SCALERS]; struct komeda_compiz *compiz; struct komeda_layer *wb_layer; struct komeda_improc *improc; struct komeda_timing_ctrlr *ctrlr; struct komeda_pipeline_funcs *funcs; /* private pipeline functions */ /** @of_node: pipeline dt node */ struct device_node *of_node; /** @of_output_port: pipeline output port */ struct device_node *of_output_port; /** @of_output_dev: output connector device node */ struct device_node *of_output_dev; }; /** * struct komeda_pipeline_state * * NOTE: * Unlike the pipeline, pipeline_state doesn’t gather any component_state * into it. It because all component will be managed by drm_atomic_state. */ struct komeda_pipeline_state { /** @obj: tracking pipeline_state by drm_atomic_state */ struct drm_private_state obj; struct komeda_pipeline *pipe; /** @crtc: currently bound crtc */ struct drm_crtc *crtc; /** * @active_comps: * * bitmask - BIT(component->id) of active components */ u32 active_comps; }; #define to_layer(c) container_of(c, struct komeda_layer, base) #define to_compiz(c) container_of(c, struct komeda_compiz, base) #define to_scaler(c) container_of(c, struct komeda_scaler, base) #define to_improc(c) container_of(c, struct komeda_improc, base) #define to_ctrlr(c) container_of(c, struct komeda_timing_ctrlr, base) #define to_layer_st(c) container_of(c, struct komeda_layer_state, base) #define to_compiz_st(c) container_of(c, struct komeda_compiz_state, base) #define to_scaler_st(c) container_of(c, struct komeda_scaler_state, base) #define to_improc_st(c) container_of(c, struct komeda_improc_state, base) #define to_ctrlr_st(c) container_of(c, struct komeda_timing_ctrlr_state, base) #define priv_to_comp_st(o) container_of(o, struct komeda_component_state, obj) #define priv_to_pipe_st(o) container_of(o, struct komeda_pipeline_state, obj) /* pipeline APIs */ struct komeda_pipeline * komeda_pipeline_add(struct komeda_dev *mdev, size_t size, struct komeda_pipeline_funcs *funcs); void komeda_pipeline_destroy(struct komeda_dev *mdev, struct komeda_pipeline *pipe); struct komeda_component * komeda_pipeline_get_component(struct komeda_pipeline *pipe, int id); /* component APIs */ struct komeda_component * komeda_component_add(struct komeda_pipeline *pipe, size_t comp_sz, u32 id, u32 hw_id, struct komeda_component_funcs *funcs, u8 max_active_inputs, u32 supported_inputs, u8 max_active_outputs, u32 __iomem *reg, const char *name_fmt, ...); void komeda_component_destroy(struct komeda_dev *mdev, struct komeda_component *c); #endif /* _KOMEDA_PIPELINE_H_*/