1/* $NetBSD: drm_encoder_slave.h,v 1.1 2015/03/05 17:42:48 riastradh Exp $ */
2
3/*-
4 * Copyright (c) 2015 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Taylor R. Campbell.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#ifndef _DRM_DRM_ENCODER_SLAVE_H_
33#define _DRM_DRM_ENCODER_SLAVE_H_
34
35#include <sys/types.h>
36#include <sys/rbtree.h>
37
38#include <drm/drm_crtc.h>
39
40struct drm_encoder_slave_funcs {
41 void (*set_config)(struct drm_encoder *, void *);
42 void (*destroy)(struct drm_encoder *);
43 void (*dpms)(struct drm_encoder *, int mode);
44 void (*save)(struct drm_encoder *);
45 void (*restore)(struct drm_encoder *);
46 bool (*mode_fixup)(struct drm_encoder *,
47 const struct drm_display_mode *,
48 struct drm_display_mode *);
49 int (*mode_valid)(struct drm_encoder *, struct drm_display_mode *);
50 void (*mode_set)(struct drm_encoder *,
51 const struct drm_display_mode *,
52 struct drm_display_mode *);
53 enum drm_connector_status
54 (*detect)(struct drm_encoder *, struct drm_connector *);
55 int (*get_modes)(struct drm_encoder *, struct drm_connector *);
56 int (*create_resources)(struct drm_encoder *,
57 struct drm_connector *);
58 int (*set_property)(struct drm_encoder *, struct drm_connector *,
59 struct drm_property *, uint64_t);
60};
61
62struct drm_encoder_slave {
63 struct drm_encoder base;
64 struct drm_encoder_slave_funcs *slave_funcs;
65 void *slave_priv;
66 void *bus_priv;
67};
68
69static inline struct drm_encoder_slave *
70to_encoder_slave(struct drm_encoder *encoder)
71{
72
73 return container_of(encoder, struct drm_encoder_slave, base);
74}
75
76struct drm_i2c_encoder_driver {
77 struct i2c_driver i2c_driver;
78 int (*encoder_init)(struct i2c_client *,
79 struct drm_device *,
80 struct drm_encoder_slave *);
81 rb_node_t rb_node;
82 volatile unsigned refcnt;
83};
84
85struct module;
86
87void drm_i2c_encoders_init(void);
88void drm_i2c_encoders_fini(void);
89
90int drm_i2c_encoder_register(struct module *,
91 struct drm_i2c_encoder_driver *);
92void drm_i2c_encoder_unregister(struct drm_i2c_encoder_driver *);
93
94int drm_i2c_encoder_init(struct drm_device *, struct drm_encoder_slave *,
95 struct i2c_adapter *, const struct i2c_board_info *);
96void drm_i2c_encoder_destroy(struct drm_encoder *);
97struct i2c_client *
98 drm_i2c_encoder_get_client(struct drm_encoder *);
99
100void drm_i2c_encoder_dpms(struct drm_encoder *, int);
101bool drm_i2c_encoder_mode_fixup(struct drm_encoder *,
102 const struct drm_display_mode *, struct drm_display_mode *);
103void drm_i2c_encoder_prepare(struct drm_encoder *);
104void drm_i2c_encoder_commit(struct drm_encoder *);
105void drm_i2c_encoder_mode_set(struct drm_encoder *,
106 struct drm_display_mode *, struct drm_display_mode *);
107enum drm_connector_status
108 drm_i2c_encoder_detect(struct drm_encoder *, struct drm_connector *);
109void drm_i2c_encoder_save(struct drm_encoder *);
110void drm_i2c_encoder_restore(struct drm_encoder *);
111
112#endif /* _DRM_DRM_ENCODER_SLAVE_H_ */
113