1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Copyright (C) 2016 Chris Zhong <zyw@rock-chips.com>
4  * Copyright (C) 2016 ROCKCHIP, Inc.
5  */
6 
7 #ifndef _CDN_DP_CORE_H
8 #define _CDN_DP_CORE_H
9 
10 #include <drm/dp/drm_dp_helper.h>
11 #include <drm/drm_panel.h>
12 #include <drm/drm_probe_helper.h>
13 #include <sound/hdmi-codec.h>
14 
15 #include "rockchip_drm_drv.h"
16 
17 #define MAX_PHY		2
18 
19 enum audio_format {
20 	AFMT_I2S = 0,
21 	AFMT_SPDIF = 1,
22 	AFMT_UNUSED,
23 };
24 
25 struct audio_info {
26 	enum audio_format format;
27 	int sample_rate;
28 	int channels;
29 	int sample_width;
30 };
31 
32 enum vic_pxl_encoding_format {
33 	PXL_RGB = 0x1,
34 	YCBCR_4_4_4 = 0x2,
35 	YCBCR_4_2_2 = 0x4,
36 	YCBCR_4_2_0 = 0x8,
37 	Y_ONLY = 0x10,
38 };
39 
40 struct video_info {
41 	bool h_sync_polarity;
42 	bool v_sync_polarity;
43 	bool interlaced;
44 	int color_depth;
45 	enum vic_pxl_encoding_format color_fmt;
46 };
47 
48 struct cdn_firmware_header {
49 	u32 size_bytes; /* size of the entire header+image(s) in bytes */
50 	u32 header_size; /* size of just the header in bytes */
51 	u32 iram_size; /* size of iram */
52 	u32 dram_size; /* size of dram */
53 };
54 
55 struct cdn_dp_port {
56 	struct cdn_dp_device *dp;
57 	struct notifier_block event_nb;
58 	struct extcon_dev *extcon;
59 	struct phy *phy;
60 	u8 lanes;
61 	bool phy_enabled;
62 	u8 id;
63 };
64 
65 struct cdn_dp_device {
66 	struct device *dev;
67 	struct drm_device *drm_dev;
68 	struct drm_connector connector;
69 	struct drm_encoder encoder;
70 	struct drm_display_mode mode;
71 	struct platform_device *audio_pdev;
72 	struct work_struct event_work;
73 	struct edid *edid;
74 
75 	struct mutex lock;
76 	bool connected;
77 	bool active;
78 	bool suspended;
79 
80 	const struct firmware *fw;	/* cdn dp firmware */
81 	unsigned int fw_version;	/* cdn fw version */
82 	bool fw_loaded;
83 
84 	void __iomem *regs;
85 	struct regmap *grf;
86 	struct clk *core_clk;
87 	struct clk *pclk;
88 	struct clk *spdif_clk;
89 	struct clk *grf_clk;
90 	struct reset_control *spdif_rst;
91 	struct reset_control *dptx_rst;
92 	struct reset_control *apb_rst;
93 	struct reset_control *core_rst;
94 	struct audio_info audio_info;
95 	struct video_info video_info;
96 	struct cdn_dp_port *port[MAX_PHY];
97 	u8 ports;
98 	u8 max_lanes;
99 	unsigned int max_rate;
100 	u8 lanes;
101 	int active_port;
102 
103 	u8 dpcd[DP_RECEIVER_CAP_SIZE];
104 	bool sink_has_audio;
105 
106 	hdmi_codec_plugged_cb plugged_cb;
107 	struct device *codec_dev;
108 };
109 #endif  /* _CDN_DP_CORE_H */
110