diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h b/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h index fb01ff49e655..34fb148474cc 100644 --- a/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h +++ b/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h @@ -668,6 +668,10 @@ enum dmub_cmd_type { */ DMUB_CMD__EDID_CEA = 79, /** + * Command type used for getting usbc cable ID + */ + DMUB_CMD_GET_USBC_CABLE_ID = 81, + /** * Command type used for all VBIOS interface commands. */ DMUB_CMD__VBIOS = 128, @@ -2484,6 +2488,38 @@ struct dmub_rb_cmd_edid_cea { }; /** + * struct dmub_cmd_cable_id_input - Defines the input of DMUB_CMD_GET_USBC_CABLE_ID command. + */ +struct dmub_cmd_cable_id_input { + uint8_t phy_inst; /**< phy inst for cable id data */ +}; + +/** + * struct dmub_cmd_cable_id_input - Defines the output of DMUB_CMD_GET_USBC_CABLE_ID command. + */ +struct dmub_cmd_cable_id_output { + uint8_t UHBR10_20_CAPABILITY :2; /**< b'01 for UHBR10 support, b'10 for both UHBR10 and UHBR20 support */ + uint8_t UHBR13_5_CAPABILITY :1; /**< b'1 for UHBR13.5 support */ + uint8_t CABLE_TYPE :3; /**< b'01 for passive cable, b'10 for active LRD cable, b'11 for active retimer cable */ + uint8_t RESERVED :2; /**< reserved means not defined */ +}; + +/** + * Definition of a DMUB_CMD_GET_USBC_CABLE_ID command + */ +struct dmub_rb_cmd_get_usbc_cable_id { + struct dmub_cmd_header header; /**< Command header */ + /** + * Data passed from driver to FW in a DMUB_CMD_GET_USBC_CABLE_ID command. + */ + union dmub_cmd_cable_id_data { + struct dmub_cmd_cable_id_input input; /**< Input */ + struct dmub_cmd_cable_id_output output; /**< Output */ + uint8_t output_raw; /**< Raw data output */ + } data; +}; + +/** * union dmub_rb_cmd - DMUB inbox command. */ union dmub_rb_cmd { @@ -2648,6 +2684,10 @@ union dmub_rb_cmd { * Definition of a DMUB_CMD__EDID_CEA command. */ struct dmub_rb_cmd_edid_cea edid_cea; + /** + * Definition of a DMUB_CMD_GET_USBC_CABLE_ID command. + */ + struct dmub_rb_cmd_get_usbc_cable_id cable_id; }; /** @@ -2921,6 +2961,10 @@ static inline void dmub_rb_flush_pending(const struct dmub_rb *rb) uint64_t temp; uint8_t i; + /* Don't remove this. + * The contents need to actually be read from the ring buffer + * for this function to be effective. + */ for (i = 0; i < DMUB_RB_CMD_SIZE / sizeof(uint64_t); i++) temp = *data++; |