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