drm_encoder_slave.h

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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 <drm/drmP.h>
#include <drm/drm_crtc.h>

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,
               const 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 {
    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)

int drm_i2c_encoder_init(struct drm_device *dev,
             struct drm_encoder_slave *encoder,
             struct i2c_adapter *adap,
             const struct i2c_board_info *info);


struct drm_i2c_encoder_driver {
    struct i2c_driver i2c_driver;

    int (*encoder_init)(struct i2c_client *client,
                struct drm_device *dev,
                struct drm_encoder_slave *encoder);

};
#define to_drm_i2c_encoder_driver(x) container_of((x),          \
                          struct drm_i2c_encoder_driver, \
                          i2c_driver)

static inline struct i2c_client *drm_i2c_encoder_get_client(struct drm_encoder *encoder)
{
    return (struct i2c_client *)to_encoder_slave(encoder)->bus_priv;
}

static inline int drm_i2c_encoder_register(struct module *owner,
                       struct drm_i2c_encoder_driver *driver)
{
    return i2c_register_driver(owner, &driver->i2c_driver);
}

static inline void drm_i2c_encoder_unregister(struct drm_i2c_encoder_driver *driver)
{
    i2c_del_driver(&driver->i2c_driver);
}

void drm_i2c_encoder_destroy(struct drm_encoder *encoder);

#endif