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/*
* Copyright (C) 2009 Francisco Jerez.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
#ifndef __DRM_ENCODER_SLAVE_H__
#define __DRM_ENCODER_SLAVE_H__
#include "drmP.h"
#include "drm_crtc.h"
/**
* struct drm_encoder_slave_funcs - Entry points exposed by a slave encoder driver
* @set_config: Initialize any encoder-specific modesetting parameters.
* The meaning of the @params parameter is implementation
* dependent. It will usually be a structure with DVO port
* data format settings or timings. It's not required for
* the new parameters to take effect until the next mode
* is set.
*
* Most of its members are analogous to the function pointers in
* &drm_encoder_helper_funcs and they can optionally be used to
* initialize the latter. Connector-like methods (e.g. @get_modes and
* @set_property) will typically be wrapped around and only be called
* if the encoder is the currently selected one for the connector.
*/
struct drm_encoder_slave_funcs {
void (*set_config)(struct drm_encoder *encoder,
void *params);
void (*destroy)(struct drm_encoder *encoder);
void (*dpms)(struct drm_encoder *encoder, int mode);
void (*save)(struct drm_encoder *encoder);
void (*restore)(struct drm_encoder *encoder);
bool (*mode_fixup)(struct drm_encoder *encoder,
struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode);
int (*mode_valid)(struct drm_encoder *encoder,
struct drm_display_mode *mode);
void (*mode_set)(struct drm_encoder *encoder,
struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode);
enum drm_connector_status (*detect)(struct drm_encoder *encoder,
struct drm_connector *connector);
int (*get_modes)(struct drm_encoder *encoder,
struct drm_connector *connector);
int (*create_resources)(struct drm_encoder *encoder,
struct drm_connector *connector);
int (*set_property)(struct drm_encoder *encoder,
struct drm_connector *connector,
struct drm_property *property,
uint64_t val);
};
/**
* struct drm_encoder_slave - Slave encoder struct
* @base: DRM encoder object.
* @slave_funcs: Slave encoder callbacks.
* @slave_priv: Slave encoder private data.
* @bus_priv: Bus specific data.
*
* A &drm_encoder_slave has two sets of callbacks, @slave_funcs and the
* ones in @base. The former are never actually called by the common
* CRTC code, it's just a convenience for splitting the encoder
* functions in an upper, GPU-specific layer and a (hopefully)
* GPU-agnostic lower layer: It's the GPU driver responsibility to
* call the slave methods when appropriate.
*
* drm_i2c_encoder_init() provides a way to get an implementation of
* this.
*/
struct drm_encoder_slave {
struct drm_encoder base;
struct drm_encoder_slave_funcs *slave_funcs;
void *slave_priv;
void *bus_priv;
};
#define to_encoder_slave(x) container_of((x), struct drm_encoder_slave, base)
#endif
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