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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 i2c_adapter;
66
67ssize_t drm_dp_dual_mode_read(struct i2c_adapter *adapter,
68 u8 offset, void *buffer, size_t size);
69ssize_t drm_dp_dual_mode_write(struct i2c_adapter *adapter,
70 u8 offset, const void *buffer, size_t size);
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80enum drm_lspcon_mode {
81 DRM_LSPCON_MODE_INVALID,
82 DRM_LSPCON_MODE_LS,
83 DRM_LSPCON_MODE_PCON,
84};
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96enum drm_dp_dual_mode_type {
97 DRM_DP_DUAL_MODE_NONE,
98 DRM_DP_DUAL_MODE_UNKNOWN,
99 DRM_DP_DUAL_MODE_TYPE1_DVI,
100 DRM_DP_DUAL_MODE_TYPE1_HDMI,
101 DRM_DP_DUAL_MODE_TYPE2_DVI,
102 DRM_DP_DUAL_MODE_TYPE2_HDMI,
103 DRM_DP_DUAL_MODE_LSPCON,
104};
105
106enum drm_dp_dual_mode_type drm_dp_dual_mode_detect(struct i2c_adapter *adapter);
107int drm_dp_dual_mode_max_tmds_clock(enum drm_dp_dual_mode_type type,
108 struct i2c_adapter *adapter);
109int drm_dp_dual_mode_get_tmds_output(enum drm_dp_dual_mode_type type,
110 struct i2c_adapter *adapter, bool *enabled);
111int drm_dp_dual_mode_set_tmds_output(enum drm_dp_dual_mode_type type,
112 struct i2c_adapter *adapter, bool enable);
113const char *drm_dp_get_dual_mode_type_name(enum drm_dp_dual_mode_type type);
114
115int drm_lspcon_get_mode(struct i2c_adapter *adapter,
116 enum drm_lspcon_mode *current_mode);
117int drm_lspcon_set_mode(struct i2c_adapter *adapter,
118 enum drm_lspcon_mode reqd_mode);
119#endif
120