xref: /linux/include/drm/bridge/dw_hdmi.h (revision e58e871becec2d3b04ed91c0c16fe8deac9c9dfa)
1 /*
2  * Copyright (C) 2011 Freescale Semiconductor, Inc.
3  *
4  * This program is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License as published by
6  * the Free Software Foundation; either version 2 of the License, or
7  * (at your option) any later version.
8  */
9 
10 #ifndef __DW_HDMI__
11 #define __DW_HDMI__
12 
13 #include <drm/drmP.h>
14 
15 struct dw_hdmi;
16 
17 /**
18  * DOC: Supported input formats and encodings
19  *
20  * Depending on the Hardware configuration of the Controller IP, it supports
21  * a subset of the following input formats and encodings on its internal
22  * 48bit bus.
23  *
24  * +----------------------+----------------------------------+------------------------------+
25  * + Format Name          + Format Code                      + Encodings                    +
26  * +----------------------+----------------------------------+------------------------------+
27  * + RGB 4:4:4 8bit       + ``MEDIA_BUS_FMT_RGB888_1X24``    + ``V4L2_YCBCR_ENC_DEFAULT``   +
28  * +----------------------+----------------------------------+------------------------------+
29  * + RGB 4:4:4 10bits     + ``MEDIA_BUS_FMT_RGB101010_1X30`` + ``V4L2_YCBCR_ENC_DEFAULT``   +
30  * +----------------------+----------------------------------+------------------------------+
31  * + RGB 4:4:4 12bits     + ``MEDIA_BUS_FMT_RGB121212_1X36`` + ``V4L2_YCBCR_ENC_DEFAULT``   +
32  * +----------------------+----------------------------------+------------------------------+
33  * + RGB 4:4:4 16bits     + ``MEDIA_BUS_FMT_RGB161616_1X48`` + ``V4L2_YCBCR_ENC_DEFAULT``   +
34  * +----------------------+----------------------------------+------------------------------+
35  * + YCbCr 4:4:4 8bit     + ``MEDIA_BUS_FMT_YUV8_1X24``      + ``V4L2_YCBCR_ENC_601``       +
36  * +                      +                                  + or ``V4L2_YCBCR_ENC_709``    +
37  * +                      +                                  + or ``V4L2_YCBCR_ENC_XV601``  +
38  * +                      +                                  + or ``V4L2_YCBCR_ENC_XV709``  +
39  * +----------------------+----------------------------------+------------------------------+
40  * + YCbCr 4:4:4 10bits   + ``MEDIA_BUS_FMT_YUV10_1X30``     + ``V4L2_YCBCR_ENC_601``       +
41  * +                      +                                  + or ``V4L2_YCBCR_ENC_709``    +
42  * +                      +                                  + or ``V4L2_YCBCR_ENC_XV601``  +
43  * +                      +                                  + or ``V4L2_YCBCR_ENC_XV709``  +
44  * +----------------------+----------------------------------+------------------------------+
45  * + YCbCr 4:4:4 12bits   + ``MEDIA_BUS_FMT_YUV12_1X36``     + ``V4L2_YCBCR_ENC_601``       +
46  * +                      +                                  + or ``V4L2_YCBCR_ENC_709``    +
47  * +                      +                                  + or ``V4L2_YCBCR_ENC_XV601``  +
48  * +                      +                                  + or ``V4L2_YCBCR_ENC_XV709``  +
49  * +----------------------+----------------------------------+------------------------------+
50  * + YCbCr 4:4:4 16bits   + ``MEDIA_BUS_FMT_YUV16_1X48``     + ``V4L2_YCBCR_ENC_601``       +
51  * +                      +                                  + or ``V4L2_YCBCR_ENC_709``    +
52  * +                      +                                  + or ``V4L2_YCBCR_ENC_XV601``  +
53  * +                      +                                  + or ``V4L2_YCBCR_ENC_XV709``  +
54  * +----------------------+----------------------------------+------------------------------+
55  * + YCbCr 4:2:2 8bit     + ``MEDIA_BUS_FMT_UYVY8_1X16``     + ``V4L2_YCBCR_ENC_601``       +
56  * +                      +                                  + or ``V4L2_YCBCR_ENC_709``    +
57  * +----------------------+----------------------------------+------------------------------+
58  * + YCbCr 4:2:2 10bits   + ``MEDIA_BUS_FMT_UYVY10_1X20``    + ``V4L2_YCBCR_ENC_601``       +
59  * +                      +                                  + or ``V4L2_YCBCR_ENC_709``    +
60  * +----------------------+----------------------------------+------------------------------+
61  * + YCbCr 4:2:2 12bits   + ``MEDIA_BUS_FMT_UYVY12_1X24``    + ``V4L2_YCBCR_ENC_601``       +
62  * +                      +                                  + or ``V4L2_YCBCR_ENC_709``    +
63  * +----------------------+----------------------------------+------------------------------+
64  * + YCbCr 4:2:0 8bit     + ``MEDIA_BUS_FMT_UYYVYY8_0_5X24`` + ``V4L2_YCBCR_ENC_601``       +
65  * +                      +                                  + or ``V4L2_YCBCR_ENC_709``    +
66  * +----------------------+----------------------------------+------------------------------+
67  * + YCbCr 4:2:0 10bits   + ``MEDIA_BUS_FMT_UYYVYY10_0_5X30``+ ``V4L2_YCBCR_ENC_601``       +
68  * +                      +                                  + or ``V4L2_YCBCR_ENC_709``    +
69  * +----------------------+----------------------------------+------------------------------+
70  * + YCbCr 4:2:0 12bits   + ``MEDIA_BUS_FMT_UYYVYY12_0_5X36``+ ``V4L2_YCBCR_ENC_601``       +
71  * +                      +                                  + or ``V4L2_YCBCR_ENC_709``    +
72  * +----------------------+----------------------------------+------------------------------+
73  * + YCbCr 4:2:0 16bits   + ``MEDIA_BUS_FMT_UYYVYY16_0_5X48``+ ``V4L2_YCBCR_ENC_601``       +
74  * +                      +                                  + or ``V4L2_YCBCR_ENC_709``    +
75  * +----------------------+----------------------------------+------------------------------+
76  */
77 
78 enum {
79 	DW_HDMI_RES_8,
80 	DW_HDMI_RES_10,
81 	DW_HDMI_RES_12,
82 	DW_HDMI_RES_MAX,
83 };
84 
85 enum dw_hdmi_phy_type {
86 	DW_HDMI_PHY_DWC_HDMI_TX_PHY = 0x00,
87 	DW_HDMI_PHY_DWC_MHL_PHY_HEAC = 0xb2,
88 	DW_HDMI_PHY_DWC_MHL_PHY = 0xc2,
89 	DW_HDMI_PHY_DWC_HDMI_3D_TX_PHY_HEAC = 0xe2,
90 	DW_HDMI_PHY_DWC_HDMI_3D_TX_PHY = 0xf2,
91 	DW_HDMI_PHY_DWC_HDMI20_TX_PHY = 0xf3,
92 	DW_HDMI_PHY_VENDOR_PHY = 0xfe,
93 };
94 
95 struct dw_hdmi_mpll_config {
96 	unsigned long mpixelclock;
97 	struct {
98 		u16 cpce;
99 		u16 gmp;
100 	} res[DW_HDMI_RES_MAX];
101 };
102 
103 struct dw_hdmi_curr_ctrl {
104 	unsigned long mpixelclock;
105 	u16 curr[DW_HDMI_RES_MAX];
106 };
107 
108 struct dw_hdmi_phy_config {
109 	unsigned long mpixelclock;
110 	u16 sym_ctr;    /*clock symbol and transmitter control*/
111 	u16 term;       /*transmission termination value*/
112 	u16 vlev_ctr;   /* voltage level control */
113 };
114 
115 struct dw_hdmi_phy_ops {
116 	int (*init)(struct dw_hdmi *hdmi, void *data,
117 		    struct drm_display_mode *mode);
118 	void (*disable)(struct dw_hdmi *hdmi, void *data);
119 	enum drm_connector_status (*read_hpd)(struct dw_hdmi *hdmi, void *data);
120 	void (*update_hpd)(struct dw_hdmi *hdmi, void *data,
121 			   bool force, bool disabled, bool rxsense);
122 	void (*setup_hpd)(struct dw_hdmi *hdmi, void *data);
123 };
124 
125 struct dw_hdmi_plat_data {
126 	struct regmap *regm;
127 	enum drm_mode_status (*mode_valid)(struct drm_connector *connector,
128 					   struct drm_display_mode *mode);
129 	unsigned long input_bus_format;
130 	unsigned long input_bus_encoding;
131 
132 	/* Vendor PHY support */
133 	const struct dw_hdmi_phy_ops *phy_ops;
134 	const char *phy_name;
135 	void *phy_data;
136 
137 	/* Synopsys PHY support */
138 	const struct dw_hdmi_mpll_config *mpll_cfg;
139 	const struct dw_hdmi_curr_ctrl *cur_ctr;
140 	const struct dw_hdmi_phy_config *phy_config;
141 	int (*configure_phy)(struct dw_hdmi *hdmi,
142 			     const struct dw_hdmi_plat_data *pdata,
143 			     unsigned long mpixelclock);
144 };
145 
146 int dw_hdmi_probe(struct platform_device *pdev,
147 		  const struct dw_hdmi_plat_data *plat_data);
148 void dw_hdmi_remove(struct platform_device *pdev);
149 void dw_hdmi_unbind(struct device *dev);
150 int dw_hdmi_bind(struct platform_device *pdev, struct drm_encoder *encoder,
151 		 const struct dw_hdmi_plat_data *plat_data);
152 
153 void dw_hdmi_setup_rx_sense(struct device *dev, bool hpd, bool rx_sense);
154 
155 void dw_hdmi_set_sample_rate(struct dw_hdmi *hdmi, unsigned int rate);
156 void dw_hdmi_audio_enable(struct dw_hdmi *hdmi);
157 void dw_hdmi_audio_disable(struct dw_hdmi *hdmi);
158 
159 /* PHY configuration */
160 void dw_hdmi_phy_i2c_write(struct dw_hdmi *hdmi, unsigned short data,
161 			   unsigned char addr);
162 
163 #endif /* __IMX_HDMI_H__ */
164