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23#ifndef DRM_DP_DUAL_MODE_HELPER_H
24#define DRM_DP_DUAL_MODE_HELPER_H
25
26#include <linux/types.h>
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31
32#define DP_DUAL_MODE_HDMI_ID 0x00
33#define DP_DUAL_MODE_HDMI_ID_LEN 16
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38#define DP_DUAL_MODE_ADAPTOR_ID 0x10
39#define DP_DUAL_MODE_REV_MASK 0x07
40#define DP_DUAL_MODE_REV_TYPE2 0x00
41#define DP_DUAL_MODE_TYPE_MASK 0xf0
42#define DP_DUAL_MODE_TYPE_TYPE2 0xa0
43
44#define DP_DUAL_MODE_TYPE_HAS_DPCD 0x08
45#define DP_DUAL_MODE_IEEE_OUI 0x11
46#define DP_DUAL_IEEE_OUI_LEN 3
47#define DP_DUAL_DEVICE_ID 0x14
48#define DP_DUAL_DEVICE_ID_LEN 6
49#define DP_DUAL_MODE_HARDWARE_REV 0x1a
50#define DP_DUAL_MODE_FIRMWARE_MAJOR_REV 0x1b
51#define DP_DUAL_MODE_FIRMWARE_MINOR_REV 0x1c
52#define DP_DUAL_MODE_MAX_TMDS_CLOCK 0x1d
53#define DP_DUAL_MODE_I2C_SPEED_CAP 0x1e
54#define DP_DUAL_MODE_TMDS_OEN 0x20
55#define DP_DUAL_MODE_TMDS_DISABLE 0x01
56#define DP_DUAL_MODE_HDMI_PIN_CTRL 0x21
57#define DP_DUAL_MODE_CEC_ENABLE 0x01
58#define DP_DUAL_MODE_I2C_SPEED_CTRL 0x22
59
60
61#define DP_DUAL_MODE_LSPCON_MODE_CHANGE 0x40
62#define DP_DUAL_MODE_LSPCON_CURRENT_MODE 0x41
63#define DP_DUAL_MODE_LSPCON_MODE_PCON 0x1
64
65struct drm_device;
66struct i2c_adapter;
67
68ssize_t drm_dp_dual_mode_read(struct i2c_adapter *adapter,
69 u8 offset, void *buffer, size_t size);
70ssize_t drm_dp_dual_mode_write(struct i2c_adapter *adapter,
71 u8 offset, const void *buffer, size_t size);
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81enum drm_lspcon_mode {
82 DRM_LSPCON_MODE_INVALID,
83 DRM_LSPCON_MODE_LS,
84 DRM_LSPCON_MODE_PCON,
85};
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97enum drm_dp_dual_mode_type {
98 DRM_DP_DUAL_MODE_NONE,
99 DRM_DP_DUAL_MODE_UNKNOWN,
100 DRM_DP_DUAL_MODE_TYPE1_DVI,
101 DRM_DP_DUAL_MODE_TYPE1_HDMI,
102 DRM_DP_DUAL_MODE_TYPE2_DVI,
103 DRM_DP_DUAL_MODE_TYPE2_HDMI,
104 DRM_DP_DUAL_MODE_LSPCON,
105};
106
107enum drm_dp_dual_mode_type
108drm_dp_dual_mode_detect(const struct drm_device *dev, struct i2c_adapter *adapter);
109int drm_dp_dual_mode_max_tmds_clock(const struct drm_device *dev, enum drm_dp_dual_mode_type type,
110 struct i2c_adapter *adapter);
111int drm_dp_dual_mode_get_tmds_output(const struct drm_device *dev, enum drm_dp_dual_mode_type type,
112 struct i2c_adapter *adapter, bool *enabled);
113int drm_dp_dual_mode_set_tmds_output(const struct drm_device *dev, enum drm_dp_dual_mode_type type,
114 struct i2c_adapter *adapter, bool enable);
115const char *drm_dp_get_dual_mode_type_name(enum drm_dp_dual_mode_type type);
116
117int drm_lspcon_get_mode(const struct drm_device *dev, struct i2c_adapter *adapter,
118 enum drm_lspcon_mode *current_mode);
119int drm_lspcon_set_mode(const struct drm_device *dev, struct i2c_adapter *adapter,
120 enum drm_lspcon_mode reqd_mode);
121#endif
122