1/* $OpenBSD: dwhdmi.h,v 1.4 2020/06/30 02:19:12 deraadt Exp $ */
2/* $NetBSD: dw_hdmi.h,v 1.6 2019/12/22 23:23:32 thorpej Exp $ */
3
4/*-
5 * Copyright (c) 2019 Jared D. McNeill <jmcneill@invisible.ca>
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
22 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
24 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
25 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#ifndef _DEV_IC_DWHDMI_H
31#define _DEV_IC_DWHDMI_H
32
33#include <dev/i2c/i2cvar.h>
34
35#ifdef notyet
36#include <dev/audio/audio_dai.h>
37#endif
38
39#include <drm/drm_connector.h>
40#include <drm/drm_bridge.h>
41
42struct dwhdmi_softc;
43
44struct dwhdmi_connector {
45	struct drm_connector	base;
46	struct dwhdmi_softc	*sc;
47
48	int			hdmi_monitor;
49	int			monitor_audio;
50};
51
52struct dwhdmi_phy_config {
53	u_int			pixel_clock;
54	uint32_t		sym;
55	uint32_t		term;
56	uint32_t		vlev;
57};
58
59struct dwhdmi_mpll_config {
60	u_int			pixel_clock;
61	uint32_t		cpce;
62	uint32_t		gmp;
63	uint32_t		curr;
64};
65
66struct dwhdmi_softc {
67	struct device		sc_dev;
68	bus_space_tag_t		sc_bst;
69	bus_space_handle_t	sc_bsh;
70	u_int			sc_reg_width;
71	u_int			sc_flags;
72#define	DWHDMI_USE_INTERNAL_PHY	(1 << 0)
73	u_int			sc_scl_hcnt;
74	u_int			sc_scl_lcnt;
75
76	u_int			sc_phytype;
77	u_int			sc_version;
78
79	i2c_tag_t		sc_ic;
80	struct i2c_controller	sc_ic_builtin;
81
82#ifdef notyet
83	struct audio_dai_device	sc_dai;
84	uint8_t			sc_swvol;
85#endif
86
87	struct dwhdmi_connector	sc_connector;
88	struct drm_bridge	sc_bridge;
89
90	struct drm_display_mode	sc_curmode;
91
92	const struct dwhdmi_mpll_config *sc_mpll_config;
93	const struct dwhdmi_phy_config *sc_phy_config;
94
95	enum drm_connector_status (*sc_detect)(struct dwhdmi_softc *, int);
96	void			(*sc_enable)(struct dwhdmi_softc *);
97	void			(*sc_disable)(struct dwhdmi_softc *);
98	void			(*sc_mode_set)(struct dwhdmi_softc *,
99					       const struct drm_display_mode *,
100					       const struct drm_display_mode *);
101	enum drm_mode_status	(*sc_mode_valid)(struct dwhdmi_softc *,
102						 const struct drm_display_mode *);
103};
104
105#define	to_dwhdmi_connector(x)	container_of(x, struct dwhdmi_connector, base)
106
107int		dwhdmi_attach(struct dwhdmi_softc *);
108int		dwhdmi_bind(struct dwhdmi_softc *, struct drm_encoder *);
109
110uint8_t		dwhdmi_read(struct dwhdmi_softc *, bus_size_t);
111void		dwhdmi_write(struct dwhdmi_softc *, bus_size_t, uint8_t);
112
113enum drm_connector_status dwhdmi_phy_detect(struct dwhdmi_softc *, int);
114void		dwhdmi_phy_enable(struct dwhdmi_softc *);
115void		dwhdmi_phy_disable(struct dwhdmi_softc *);
116void		dwhdmi_phy_mode_set(struct dwhdmi_softc *,
117				    const struct drm_display_mode *,
118				    const struct drm_display_mode *);
119
120#endif /* !_DEV_IC_DWHDMI_H */
121