drm_encoder_slave.h revision 1.1 
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