diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_ddc_types.h | 61 |
1 files changed, 60 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc_ddc_types.h b/drivers/gpu/drm/amd/display/dc/dc_ddc_types.h index e1affeb5cc51..05c8c31d8b31 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_ddc_types.h +++ b/drivers/gpu/drm/amd/display/dc/dc_ddc_types.h @@ -25,6 +25,65 @@ #ifndef DC_DDC_TYPES_H_ #define DC_DDC_TYPES_H_ +enum aux_transaction_type { + AUX_TRANSACTION_TYPE_DP, + AUX_TRANSACTION_TYPE_I2C +}; + + +enum i2caux_transaction_action { + I2CAUX_TRANSACTION_ACTION_I2C_WRITE = 0x00, + I2CAUX_TRANSACTION_ACTION_I2C_READ = 0x10, + I2CAUX_TRANSACTION_ACTION_I2C_STATUS_REQUEST = 0x20, + + I2CAUX_TRANSACTION_ACTION_I2C_WRITE_MOT = 0x40, + I2CAUX_TRANSACTION_ACTION_I2C_READ_MOT = 0x50, + I2CAUX_TRANSACTION_ACTION_I2C_STATUS_REQUEST_MOT = 0x60, + + I2CAUX_TRANSACTION_ACTION_DP_WRITE = 0x80, + I2CAUX_TRANSACTION_ACTION_DP_READ = 0x90 +}; + +enum aux_channel_operation_result { + AUX_CHANNEL_OPERATION_SUCCEEDED, + AUX_CHANNEL_OPERATION_FAILED_REASON_UNKNOWN, + AUX_CHANNEL_OPERATION_FAILED_INVALID_REPLY, + AUX_CHANNEL_OPERATION_FAILED_TIMEOUT, + AUX_CHANNEL_OPERATION_FAILED_HPD_DISCON +}; + + +struct aux_request_transaction_data { + enum aux_transaction_type type; + enum i2caux_transaction_action action; + /* 20-bit AUX channel transaction address */ + uint32_t address; + /* delay, in 100-microsecond units */ + uint8_t delay; + uint32_t length; + uint8_t *data; +}; + +enum aux_transaction_reply { + AUX_TRANSACTION_REPLY_AUX_ACK = 0x00, + AUX_TRANSACTION_REPLY_AUX_NACK = 0x01, + AUX_TRANSACTION_REPLY_AUX_DEFER = 0x02, + + AUX_TRANSACTION_REPLY_I2C_ACK = 0x00, + AUX_TRANSACTION_REPLY_I2C_NACK = 0x10, + AUX_TRANSACTION_REPLY_I2C_DEFER = 0x20, + + AUX_TRANSACTION_REPLY_HPD_DISCON = 0x40, + + AUX_TRANSACTION_REPLY_INVALID = 0xFF +}; + +struct aux_reply_transaction_data { + enum aux_transaction_reply status; + uint32_t length; + uint8_t *data; +}; + struct i2c_payload { bool write; uint8_t address; @@ -109,7 +168,7 @@ struct ddc_service { uint32_t address; uint32_t edid_buf_len; - uint8_t edid_buf[MAX_EDID_BUFFER_SIZE]; + uint8_t edid_buf[DC_MAX_EDID_BUFFER_SIZE]; }; #endif /* DC_DDC_TYPES_H_ */ |