| /* |
| * Copyright 2019 Advanced Micro Devices, Inc. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| * OTHER DEALINGS IN THE SOFTWARE. |
| * |
| */ |
| |
| #ifndef _TA_SECUREDISPLAY_IF_H |
| #define _TA_SECUREDISPLAY_IF_H |
| |
| /** Secure Display related enumerations */ |
| /**********************************************************/ |
| |
| /** @enum ta_securedisplay_command |
| * Secure Display Command ID |
| */ |
| enum ta_securedisplay_command { |
| /* Query whether TA is responding used only for validation purpose */ |
| TA_SECUREDISPLAY_COMMAND__QUERY_TA = 1, |
| /* Send region of Interest and CRC value to I2C */ |
| TA_SECUREDISPLAY_COMMAND__SEND_ROI_CRC = 2, |
| /* Maximum Command ID */ |
| TA_SECUREDISPLAY_COMMAND__MAX_ID = 0x7FFFFFFF, |
| }; |
| |
| /** @enum ta_securedisplay_status |
| * Secure Display status returns in shared buffer status |
| */ |
| enum ta_securedisplay_status { |
| TA_SECUREDISPLAY_STATUS__SUCCESS = 0x00, /* Success */ |
| TA_SECUREDISPLAY_STATUS__GENERIC_FAILURE = 0x01, /* Generic Failure */ |
| TA_SECUREDISPLAY_STATUS__INVALID_PARAMETER = 0x02, /* Invalid Parameter */ |
| TA_SECUREDISPLAY_STATUS__NULL_POINTER = 0x03, /* Null Pointer*/ |
| TA_SECUREDISPLAY_STATUS__I2C_WRITE_ERROR = 0x04, /* Fail to Write to I2C */ |
| TA_SECUREDISPLAY_STATUS__READ_DIO_SCRATCH_ERROR = 0x05, /*Fail Read DIO Scratch Register*/ |
| TA_SECUREDISPLAY_STATUS__READ_CRC_ERROR = 0x06, /* Fail to Read CRC*/ |
| TA_SECUREDISPLAY_STATUS__I2C_INIT_ERROR = 0x07, /* Failed to initialize I2C */ |
| |
| TA_SECUREDISPLAY_STATUS__MAX = 0x7FFFFFFF,/* Maximum Value for status*/ |
| }; |
| |
| /** @enum ta_securedisplay_max_phy |
| * Physical ID number to use for reading corresponding DIO Scratch register for ROI |
| */ |
| enum ta_securedisplay_max_phy { |
| TA_SECUREDISPLAY_PHY0 = 0, |
| TA_SECUREDISPLAY_PHY1 = 1, |
| TA_SECUREDISPLAY_PHY2 = 2, |
| TA_SECUREDISPLAY_PHY3 = 3, |
| TA_SECUREDISPLAY_MAX_PHY = 4, |
| }; |
| |
| /** @enum ta_securedisplay_ta_query_cmd_ret |
| * A predefined specific reteurn value which is 0xAB only used to validate |
| * communication to Secure Display TA is functional. |
| * This value is used to validate whether TA is responding successfully |
| */ |
| enum ta_securedisplay_ta_query_cmd_ret { |
| /* This is a value to validate if TA is loaded successfully */ |
| TA_SECUREDISPLAY_QUERY_CMD_RET = 0xAB, |
| }; |
| |
| /** @enum ta_securedisplay_buffer_size |
| * I2C Buffer size which contains 8 bytes of ROI (X start, X end, Y start, Y end) |
| * and 6 bytes of CRC( R,G,B) and 1 byte for physical ID |
| */ |
| enum ta_securedisplay_buffer_size { |
| /* 15 bytes = 8 byte (ROI) + 6 byte(CRC) + 1 byte(phy_id) */ |
| TA_SECUREDISPLAY_I2C_BUFFER_SIZE = 15, |
| }; |
| |
| /** Input/output structures for Secure Display commands */ |
| /**********************************************************/ |
| /** |
| * Input structures |
| */ |
| |
| /** @struct ta_securedisplay_send_roi_crc_input |
| * Physical ID to determine which DIO scratch register should be used to get ROI |
| */ |
| struct ta_securedisplay_send_roi_crc_input { |
| uint32_t phy_id; /* Physical ID */ |
| }; |
| |
| /** @union ta_securedisplay_cmd_input |
| * Input buffer |
| */ |
| union ta_securedisplay_cmd_input { |
| /* send ROI and CRC input buffer format */ |
| struct ta_securedisplay_send_roi_crc_input send_roi_crc; |
| uint32_t reserved[4]; |
| }; |
| |
| /** |
| * Output structures |
| */ |
| |
| /** @struct ta_securedisplay_query_ta_output |
| * Output buffer format for query TA whether TA is responding used only for validation purpose |
| */ |
| struct ta_securedisplay_query_ta_output { |
| /* return value from TA when it is queried for validation purpose only */ |
| uint32_t query_cmd_ret; |
| }; |
| |
| /** @struct ta_securedisplay_send_roi_crc_output |
| * Output buffer format for send ROI CRC command which will pass I2c buffer created inside TA |
| * and used to write to I2C used only for validation purpose |
| */ |
| struct ta_securedisplay_send_roi_crc_output { |
| uint8_t i2c_buf[TA_SECUREDISPLAY_I2C_BUFFER_SIZE]; /* I2C buffer */ |
| uint8_t reserved; |
| }; |
| |
| /** @union ta_securedisplay_cmd_output |
| * Output buffer |
| */ |
| union ta_securedisplay_cmd_output { |
| /* Query TA output buffer format used only for validation purpose*/ |
| struct ta_securedisplay_query_ta_output query_ta; |
| /* Send ROI CRC output buffer format used only for validation purpose */ |
| struct ta_securedisplay_send_roi_crc_output send_roi_crc; |
| uint32_t reserved[4]; |
| }; |
| |
| /** @struct securedisplay_cmd |
| * Secure Display Command which is shared buffer memory |
| */ |
| struct securedisplay_cmd { |
| uint32_t cmd_id; /* +0 Bytes Command ID */ |
| enum ta_securedisplay_status status; /* +4 Bytes Status of Secure Display TA */ |
| uint32_t reserved[2]; /* +8 Bytes Reserved */ |
| union ta_securedisplay_cmd_input securedisplay_in_message; /* +16 Bytes Input Buffer */ |
| union ta_securedisplay_cmd_output securedisplay_out_message;/* +32 Bytes Output Buffer */ |
| /**@note Total 48 Bytes */ |
| }; |
| |
| #endif //_TA_SECUREDISPLAY_IF_H |
| |
