Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Icenowy Zheng | 282 | 68.28% | 1 | 6.67% |
Maxime Ripard | 61 | 14.77% | 6 | 40.00% |
Jernej Škrabec | 36 | 8.72% | 1 | 6.67% |
Ondrej Jirman | 12 | 2.91% | 1 | 6.67% |
Chen-Yu Tsai | 11 | 2.66% | 3 | 20.00% |
Laurent Pinchart | 6 | 1.45% | 1 | 6.67% |
Sean Paul | 3 | 0.73% | 1 | 6.67% |
Thomas Gleixner | 2 | 0.48% | 1 | 6.67% |
Total | 413 | 15 |
/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2017 Icenowy Zheng <icenowy@aosc.io> */ #ifndef _SUNXI_ENGINE_H_ #define _SUNXI_ENGINE_H_ struct drm_plane; struct drm_crtc; struct drm_device; struct drm_crtc_state; struct drm_display_mode; struct sunxi_engine; /** * struct sunxi_engine_ops - helper operations for sunXi engines * * These hooks are used by the common part of the DRM driver to * implement the proper behaviour. */ struct sunxi_engine_ops { /** * @atomic_begin: * * This callback allows to prepare our engine for an atomic * update. This is mirroring the * &drm_crtc_helper_funcs.atomic_begin callback, so any * documentation there applies. * * This function is optional. */ void (*atomic_begin)(struct sunxi_engine *engine, struct drm_crtc_state *old_state); /** * @atomic_check: * * This callback allows to validate plane-update related CRTC * constraints specific to engines. This is mirroring the * &drm_crtc_helper_funcs.atomic_check callback, so any * documentation there applies. * * This function is optional. * * RETURNS: * * 0 on success or a negative error code. */ int (*atomic_check)(struct sunxi_engine *engine, struct drm_crtc_state *state); /** * @commit: * * This callback will trigger the hardware switch to commit * the new configuration that has been setup during the next * vblank period. * * This function is optional. */ void (*commit)(struct sunxi_engine *engine, struct drm_crtc *crtc, struct drm_atomic_state *state); /** * @layers_init: * * This callback is used to allocate, initialize and register * the layers supported by that engine. * * This function is mandatory. * * RETURNS: * * The array of struct drm_plane backing the layers, or an * error pointer on failure. */ struct drm_plane **(*layers_init)(struct drm_device *drm, struct sunxi_engine *engine); /** * @apply_color_correction: * * This callback will enable the color correction in the * engine. This is useful only for the composite output. * * This function is optional. */ void (*apply_color_correction)(struct sunxi_engine *engine); /** * @disable_color_correction: * * This callback will stop the color correction in the * engine. This is useful only for the composite output. * * This function is optional. */ void (*disable_color_correction)(struct sunxi_engine *engine); /** * @vblank_quirk: * * This callback is used to implement engine-specific * behaviour part of the VBLANK event. It is run with all the * constraints of an interrupt (can't sleep, all local * interrupts disabled) and therefore should be as fast as * possible. * * This function is optional. */ void (*vblank_quirk)(struct sunxi_engine *engine); /** * @mode_set * * This callback is used to set mode related parameters * like interlacing, screen size, etc. once per mode set. * * This function is optional. */ void (*mode_set)(struct sunxi_engine *engine, const struct drm_display_mode *mode); }; /** * struct sunxi_engine - the common parts of an engine for sun4i-drm driver * @ops: the operations of the engine * @node: the of device node of the engine * @regs: the regmap of the engine * @id: the id of the engine (-1 if not used) */ struct sunxi_engine { const struct sunxi_engine_ops *ops; struct device_node *node; struct regmap *regs; int id; /* Engine list management */ struct list_head list; }; /** * sunxi_engine_commit() - commit all changes of the engine * @engine: pointer to the engine * @crtc: pointer to crtc the engine is associated with * @state: atomic state */ static inline void sunxi_engine_commit(struct sunxi_engine *engine, struct drm_crtc *crtc, struct drm_atomic_state *state) { if (engine->ops && engine->ops->commit) engine->ops->commit(engine, crtc, state); } /** * sunxi_engine_layers_init() - Create planes (layers) for the engine * @drm: pointer to the drm_device for which planes will be created * @engine: pointer to the engine */ static inline struct drm_plane ** sunxi_engine_layers_init(struct drm_device *drm, struct sunxi_engine *engine) { if (engine->ops && engine->ops->layers_init) return engine->ops->layers_init(drm, engine); return ERR_PTR(-ENOSYS); } /** * sunxi_engine_apply_color_correction - Apply the RGB2YUV color correction * @engine: pointer to the engine * * This functionality is optional for an engine, however, if the engine is * intended to be used with TV Encoder, the output will be incorrect * without the color correction, due to TV Encoder expects the engine to * output directly YUV signal. */ static inline void sunxi_engine_apply_color_correction(struct sunxi_engine *engine) { if (engine->ops && engine->ops->apply_color_correction) engine->ops->apply_color_correction(engine); } /** * sunxi_engine_disable_color_correction - Disable the color space correction * @engine: pointer to the engine * * This function is paired with apply_color_correction(). */ static inline void sunxi_engine_disable_color_correction(struct sunxi_engine *engine) { if (engine->ops && engine->ops->disable_color_correction) engine->ops->disable_color_correction(engine); } /** * sunxi_engine_mode_set - Inform engine of a new mode * @engine: pointer to the engine * @mode: new mode * * Engine can use this functionality to set specifics once per mode change. */ static inline void sunxi_engine_mode_set(struct sunxi_engine *engine, const struct drm_display_mode *mode) { if (engine->ops && engine->ops->mode_set) engine->ops->mode_set(engine, mode); } #endif /* _SUNXI_ENGINE_H_ */
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