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| Rev | Author | Line No. | Line |
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| 7143 | serge | 1 | /* |
| 2 | * Copyright © 2016 Intel Corporation |
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| 3 | * |
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| 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
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| 5 | * copy of this software and associated documentation files (the "Software"), |
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| 6 | * to deal in the Software without restriction, including without limitation |
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| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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| 8 | * and/or sell copies of the Software, and to permit persons to whom the |
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| 9 | * Software is furnished to do so, subject to the following conditions: |
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| 10 | * |
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| 11 | * The above copyright notice and this permission notice shall be included in |
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| 12 | * all copies or substantial portions of the Software. |
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| 13 | * |
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| 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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| 15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| 16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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| 17 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
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| 18 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
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| 19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
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| 20 | * OTHER DEALINGS IN THE SOFTWARE. |
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| 21 | */ |
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| 22 | |||
| 23 | #ifndef DRM_DP_DUAL_MODE_HELPER_H |
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| 24 | #define DRM_DP_DUAL_MODE_HELPER_H |
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| 25 | |||
| 26 | #include |
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| 27 | |||
| 28 | /* |
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| 29 | * Optional for type 1 DVI adaptors |
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| 30 | * Mandatory for type 1 HDMI and type 2 adaptors |
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| 31 | */ |
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| 32 | #define DP_DUAL_MODE_HDMI_ID 0x00 /* 00-0f */ |
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| 33 | #define DP_DUAL_MODE_HDMI_ID_LEN 16 |
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| 34 | /* |
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| 35 | * Optional for type 1 adaptors |
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| 36 | * Mandatory for type 2 adaptors |
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| 37 | */ |
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| 38 | #define DP_DUAL_MODE_ADAPTOR_ID 0x10 |
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| 39 | #define DP_DUAL_MODE_REV_MASK 0x07 |
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| 40 | #define DP_DUAL_MODE_REV_TYPE2 0x00 |
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| 41 | #define DP_DUAL_MODE_TYPE_MASK 0xf0 |
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| 42 | #define DP_DUAL_MODE_TYPE_TYPE2 0xa0 |
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| 43 | #define DP_DUAL_MODE_IEEE_OUI 0x11 /* 11-13*/ |
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| 44 | #define DP_DUAL_IEEE_OUI_LEN 3 |
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| 45 | #define DP_DUAL_DEVICE_ID 0x14 /* 14-19 */ |
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| 46 | #define DP_DUAL_DEVICE_ID_LEN 6 |
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| 47 | #define DP_DUAL_MODE_HARDWARE_REV 0x1a |
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| 48 | #define DP_DUAL_MODE_FIRMWARE_MAJOR_REV 0x1b |
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| 49 | #define DP_DUAL_MODE_FIRMWARE_MINOR_REV 0x1c |
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| 50 | #define DP_DUAL_MODE_MAX_TMDS_CLOCK 0x1d |
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| 51 | #define DP_DUAL_MODE_I2C_SPEED_CAP 0x1e |
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| 52 | #define DP_DUAL_MODE_TMDS_OEN 0x20 |
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| 53 | #define DP_DUAL_MODE_TMDS_DISABLE 0x01 |
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| 54 | #define DP_DUAL_MODE_HDMI_PIN_CTRL 0x21 |
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| 55 | #define DP_DUAL_MODE_CEC_ENABLE 0x01 |
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| 56 | #define DP_DUAL_MODE_I2C_SPEED_CTRL 0x22 |
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| 57 | |||
| 58 | struct i2c_adapter; |
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| 59 | |||
| 60 | ssize_t drm_dp_dual_mode_read(struct i2c_adapter *adapter, |
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| 61 | u8 offset, void *buffer, size_t size); |
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| 62 | ssize_t drm_dp_dual_mode_write(struct i2c_adapter *adapter, |
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| 63 | u8 offset, const void *buffer, size_t size); |
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| 64 | |||
| 65 | /** |
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| 66 | * enum drm_dp_dual_mode_type - Type of the DP dual mode adaptor |
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| 67 | * @DRM_DP_DUAL_MODE_NONE: No DP dual mode adaptor |
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| 68 | * @DRM_DP_DUAL_MODE_UNKNOWN: Could be either none or type 1 DVI adaptor |
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| 69 | * @DRM_DP_DUAL_MODE_TYPE1_DVI: Type 1 DVI adaptor |
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| 70 | * @DRM_DP_DUAL_MODE_TYPE1_HDMI: Type 1 HDMI adaptor |
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| 71 | * @DRM_DP_DUAL_MODE_TYPE2_DVI: Type 2 DVI adaptor |
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| 72 | * @DRM_DP_DUAL_MODE_TYPE2_HDMI: Type 2 HDMI adaptor |
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| 73 | */ |
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| 74 | enum drm_dp_dual_mode_type { |
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| 75 | DRM_DP_DUAL_MODE_NONE, |
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| 76 | DRM_DP_DUAL_MODE_UNKNOWN, |
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| 77 | DRM_DP_DUAL_MODE_TYPE1_DVI, |
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| 78 | DRM_DP_DUAL_MODE_TYPE1_HDMI, |
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| 79 | DRM_DP_DUAL_MODE_TYPE2_DVI, |
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| 80 | DRM_DP_DUAL_MODE_TYPE2_HDMI, |
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| 81 | }; |
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| 82 | |||
| 83 | enum drm_dp_dual_mode_type drm_dp_dual_mode_detect(struct i2c_adapter *adapter); |
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| 84 | int drm_dp_dual_mode_max_tmds_clock(enum drm_dp_dual_mode_type type, |
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| 85 | struct i2c_adapter *adapter); |
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| 86 | int drm_dp_dual_mode_get_tmds_output(enum drm_dp_dual_mode_type type, |
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| 87 | struct i2c_adapter *adapter, bool *enabled); |
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| 88 | int drm_dp_dual_mode_set_tmds_output(enum drm_dp_dual_mode_type type, |
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| 89 | struct i2c_adapter *adapter, bool enable); |
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| 90 | const char *drm_dp_get_dual_mode_type_name(enum drm_dp_dual_mode_type type); |
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| 91 | |||
| 92 | #endif |