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24 #ifndef _TA_SECUREDISPLAY_IF_H
25 #define _TA_SECUREDISPLAY_IF_H
27 /** Secure Display related enumerations */
28 /**********************************************************/
30 /** @enum ta_securedisplay_command
31 * Secure Display Command ID
33 enum ta_securedisplay_command {
34 /* Query whether TA is responding. It is used only for validation purpose */
35 TA_SECUREDISPLAY_COMMAND__QUERY_TA = 1,
36 /* Send region of Interest and CRC value to I2C */
37 TA_SECUREDISPLAY_COMMAND__SEND_ROI_CRC = 2,
38 /* V2 to send multiple regions of Interest and CRC value to I2C */
39 TA_SECUREDISPLAY_COMMAND__SEND_ROI_CRC_V2 = 3,
40 /* Maximum Command ID */
41 TA_SECUREDISPLAY_COMMAND__MAX_ID = 0x7FFFFFFF,
44 /** @enum ta_securedisplay_status
45 * Secure Display status returns in shared buffer status
47 enum ta_securedisplay_status {
48 TA_SECUREDISPLAY_STATUS__SUCCESS = 0x00, /* Success */
49 TA_SECUREDISPLAY_STATUS__GENERIC_FAILURE = 0x01, /* Generic Failure */
50 TA_SECUREDISPLAY_STATUS__INVALID_PARAMETER = 0x02, /* Invalid Parameter */
51 TA_SECUREDISPLAY_STATUS__NULL_POINTER = 0x03, /* Null Pointer*/
52 TA_SECUREDISPLAY_STATUS__I2C_WRITE_ERROR = 0x04, /* Fail to Write to I2C */
53 TA_SECUREDISPLAY_STATUS__READ_DIO_SCRATCH_ERROR = 0x05, /*Fail Read DIO Scratch Register*/
54 TA_SECUREDISPLAY_STATUS__READ_CRC_ERROR = 0x06, /* Fail to Read CRC*/
55 TA_SECUREDISPLAY_STATUS__I2C_INIT_ERROR = 0x07, /* Failed to initialize I2C */
57 TA_SECUREDISPLAY_STATUS__MAX = 0x7FFFFFFF,/* Maximum Value for status*/
60 /** @enum ta_securedisplay_phy_ID
61 * Physical ID number to use for reading corresponding DIO Scratch register for ROI
63 enum ta_securedisplay_phy_ID {
64 TA_SECUREDISPLAY_PHY0 = 0,
65 TA_SECUREDISPLAY_PHY1 = 1,
66 TA_SECUREDISPLAY_PHY2 = 2,
67 TA_SECUREDISPLAY_PHY3 = 3,
68 TA_SECUREDISPLAY_MAX_PHY = 4,
71 /** @enum ta_securedisplay_ta_query_cmd_ret
72 * A predefined specific reteurn value which is 0xAB only used to validate
73 * communication to Secure Display TA is functional.
74 * This value is used to validate whether TA is responding successfully
76 enum ta_securedisplay_ta_query_cmd_ret {
77 /* This is a value to validate if TA is loaded successfully */
78 TA_SECUREDISPLAY_QUERY_CMD_RET = 0xAB,
81 /** @enum ta_securedisplay_buffer_size
82 * I2C Buffer size which contains 8 bytes of ROI (X start, X end, Y start, Y end)
83 * and 6 bytes of CRC( R,G,B) and 1 byte for physical ID
85 enum ta_securedisplay_buffer_size {
86 /* 15 bytes = 8 byte (ROI) + 6 byte(CRC) + 1 byte(phy_id) */
87 TA_SECUREDISPLAY_I2C_BUFFER_SIZE = 15,
88 /* 16 bytes = 8 byte (ROI) + 6 byte(CRC) + 1 byte(phy_id) + 1 byte(roi_idx) */
89 TA_SECUREDISPLAY_V2_I2C_BUFFER_SIZE = 16,
92 /** Input/output structures for Secure Display commands */
93 /**********************************************************/
98 /** @struct ta_securedisplay_send_roi_crc_input
99 * Physical ID to determine which DIO scratch register should be used to get ROI
101 struct ta_securedisplay_send_roi_crc_input {
106 struct ta_securedisplay_send_roi_crc_v2_input {
109 /* Region of interest index */
113 /** @union ta_securedisplay_cmd_input
116 union ta_securedisplay_cmd_input {
117 /* send ROI and CRC input buffer format */
118 struct ta_securedisplay_send_roi_crc_input send_roi_crc;
119 /* send ROI and CRC input buffer format, v2 adds a ROI index */
120 struct ta_securedisplay_send_roi_crc_v2_input send_roi_crc_v2;
121 uint32_t reserved[4];
128 /** @struct ta_securedisplay_query_ta_output
129 * Output buffer format for query TA whether TA is responding used only for validation purpose
131 struct ta_securedisplay_query_ta_output {
132 /* return value from TA when it is queried for validation purpose only */
133 uint32_t query_cmd_ret;
136 /** @struct ta_securedisplay_send_roi_crc_output
137 * Output buffer format for send ROI CRC command which will pass I2c buffer created inside TA
138 * and used to write to I2C used only for validation purpose
140 struct ta_securedisplay_send_roi_crc_output {
141 uint8_t i2c_buf[TA_SECUREDISPLAY_I2C_BUFFER_SIZE]; /* I2C buffer */
145 struct ta_securedisplay_send_roi_crc_v2_output {
146 uint8_t i2c_buf[TA_SECUREDISPLAY_V2_I2C_BUFFER_SIZE]; /* I2C buffer */
149 /** @union ta_securedisplay_cmd_output
152 union ta_securedisplay_cmd_output {
153 /* Query TA output buffer format used only for validation purpose*/
154 struct ta_securedisplay_query_ta_output query_ta;
155 /* Send ROI CRC output buffer format used only for validation purpose */
156 struct ta_securedisplay_send_roi_crc_output send_roi_crc;
157 /* Send ROI CRC output buffer format used only for validation purpose */
158 struct ta_securedisplay_send_roi_crc_v2_output send_roi_crc_v2;
159 uint32_t reserved[4];
162 /** @struct ta_securedisplay_cmd
163 * Secure display command which is shared buffer memory
165 struct ta_securedisplay_cmd {
166 uint32_t cmd_id; /**< +0 Bytes Command ID */
167 enum ta_securedisplay_status status; /**< +4 Bytes Status code returned by the secure display TA */
168 uint32_t reserved[2]; /**< +8 Bytes Reserved */
169 union ta_securedisplay_cmd_input securedisplay_in_message; /**< +16 Bytes Command input buffer */
170 union ta_securedisplay_cmd_output securedisplay_out_message; /**< +32 Bytes Command output buffer */
171 /**@note Total 48 Bytes */
174 #endif //_TA_SECUREDISPLAY_IF_H