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/*
* 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
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