1 /*
2  * ti_hdmi.h
3  *
4  * HDMI driver definition for TI OMAP4, DM81xx, DM38xx  Processor.
5  *
6  * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com/
7  *
8  * This program is free software; you can redistribute it and/or modify it
9  * under the terms of the GNU General Public License version 2 as published by
10  * the Free Software Foundation.
11  *
12  * This program is distributed in the hope that it will be useful, but WITHOUT
13  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
15  * more details.
16  *
17  * You should have received a copy of the GNU General Public License along with
18  * this program.  If not, see <http://www.gnu.org/licenses/>.
19  */
20 
21 #ifndef _TI_HDMI_H
22 #define _TI_HDMI_H
23 
24 struct hdmi_ip_data;
25 
26 enum hdmi_pll_pwr {
27 	HDMI_PLLPWRCMD_ALLOFF = 0,
28 	HDMI_PLLPWRCMD_PLLONLY = 1,
29 	HDMI_PLLPWRCMD_BOTHON_ALLCLKS = 2,
30 	HDMI_PLLPWRCMD_BOTHON_NOPHYCLK = 3
31 };
32 
33 enum hdmi_core_hdmi_dvi {
34 	HDMI_DVI = 0,
35 	HDMI_HDMI = 1
36 };
37 
38 enum hdmi_clk_refsel {
39 	HDMI_REFSEL_PCLK = 0,
40 	HDMI_REFSEL_REF1 = 1,
41 	HDMI_REFSEL_REF2 = 2,
42 	HDMI_REFSEL_SYSCLK = 3
43 };
44 
45 struct hdmi_video_timings {
46 	u16 x_res;
47 	u16 y_res;
48 	/* Unit: KHz */
49 	u32 pixel_clock;
50 	u16 hsw;
51 	u16 hfp;
52 	u16 hbp;
53 	u16 vsw;
54 	u16 vfp;
55 	u16 vbp;
56 };
57 
58 /* HDMI timing structure */
59 struct hdmi_timings {
60 	struct hdmi_video_timings timings;
61 	int vsync_pol;
62 	int hsync_pol;
63 };
64 
65 struct hdmi_cm {
66 	int	code;
67 	int	mode;
68 };
69 
70 struct hdmi_config {
71 	struct hdmi_timings timings;
72 	u16	interlace;
73 	struct hdmi_cm cm;
74 };
75 
76 /* HDMI PLL structure */
77 struct hdmi_pll_info {
78 	u16 regn;
79 	u16 regm;
80 	u32 regmf;
81 	u16 regm2;
82 	u16 regsd;
83 	u16 dcofreq;
84 	enum hdmi_clk_refsel refsel;
85 };
86 
87 struct ti_hdmi_ip_ops {
88 
89 	void (*video_configure)(struct hdmi_ip_data *ip_data);
90 
91 	int (*phy_enable)(struct hdmi_ip_data *ip_data);
92 
93 	void (*phy_disable)(struct hdmi_ip_data *ip_data);
94 
95 	int (*read_edid)(struct hdmi_ip_data *ip_data, u8 *edid, int len);
96 
97 	bool (*detect)(struct hdmi_ip_data *ip_data);
98 
99 	int (*pll_enable)(struct hdmi_ip_data *ip_data);
100 
101 	void (*pll_disable)(struct hdmi_ip_data *ip_data);
102 
103 	void (*video_enable)(struct hdmi_ip_data *ip_data, bool start);
104 
105 	void (*dump_wrapper)(struct hdmi_ip_data *ip_data, struct seq_file *s);
106 
107 	void (*dump_core)(struct hdmi_ip_data *ip_data, struct seq_file *s);
108 
109 	void (*dump_pll)(struct hdmi_ip_data *ip_data, struct seq_file *s);
110 
111 	void (*dump_phy)(struct hdmi_ip_data *ip_data, struct seq_file *s);
112 
113 #if defined(CONFIG_SND_OMAP_SOC_OMAP4_HDMI) || \
114 	defined(CONFIG_SND_OMAP_SOC_OMAP4_HDMI_MODULE)
115 	void (*audio_enable)(struct hdmi_ip_data *ip_data, bool start);
116 #endif
117 
118 };
119 
120 struct hdmi_ip_data {
121 	void __iomem	*base_wp;	/* HDMI wrapper */
122 	unsigned long	core_sys_offset;
123 	unsigned long	core_av_offset;
124 	unsigned long	pll_offset;
125 	unsigned long	phy_offset;
126 	const struct ti_hdmi_ip_ops *ops;
127 	struct hdmi_config cfg;
128 	struct hdmi_pll_info pll_data;
129 
130 	/* ti_hdmi_4xxx_ip private data. These should be in a separate struct */
131 	int hpd_gpio;
132 	bool phy_tx_enabled;
133 };
134 int ti_hdmi_4xxx_phy_enable(struct hdmi_ip_data *ip_data);
135 void ti_hdmi_4xxx_phy_disable(struct hdmi_ip_data *ip_data);
136 int ti_hdmi_4xxx_read_edid(struct hdmi_ip_data *ip_data, u8 *edid, int len);
137 bool ti_hdmi_4xxx_detect(struct hdmi_ip_data *ip_data);
138 void ti_hdmi_4xxx_wp_video_start(struct hdmi_ip_data *ip_data, bool start);
139 int ti_hdmi_4xxx_pll_enable(struct hdmi_ip_data *ip_data);
140 void ti_hdmi_4xxx_pll_disable(struct hdmi_ip_data *ip_data);
141 void ti_hdmi_4xxx_basic_configure(struct hdmi_ip_data *ip_data);
142 void ti_hdmi_4xxx_wp_dump(struct hdmi_ip_data *ip_data, struct seq_file *s);
143 void ti_hdmi_4xxx_pll_dump(struct hdmi_ip_data *ip_data, struct seq_file *s);
144 void ti_hdmi_4xxx_core_dump(struct hdmi_ip_data *ip_data, struct seq_file *s);
145 void ti_hdmi_4xxx_phy_dump(struct hdmi_ip_data *ip_data, struct seq_file *s);
146 #if defined(CONFIG_SND_OMAP_SOC_OMAP4_HDMI) || \
147 	defined(CONFIG_SND_OMAP_SOC_OMAP4_HDMI_MODULE)
148 void ti_hdmi_4xxx_wp_audio_enable(struct hdmi_ip_data *ip_data, bool enable);
149 #endif
150 #endif
151