1 /*
2  * Copyright 2019 Advanced Micro Devices, Inc.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  *
22  * Authors: AMD
23  *
24  */
25 
26 
27 #include "hdcp.h"
28 
29 void mod_hdcp_dump_binary_message(uint8_t *msg, uint32_t msg_size,
30 		uint8_t *buf, uint32_t buf_size)
31 {
32 	const uint8_t bytes_per_line = 16,
33 			byte_size = 3,
34 			newline_size = 1,
35 			terminator_size = 1;
36 	uint32_t line_count = msg_size / bytes_per_line,
37 			trailing_bytes = msg_size % bytes_per_line;
38 	uint32_t target_size = (byte_size * bytes_per_line + newline_size) * line_count +
39 			byte_size * trailing_bytes + newline_size + terminator_size;
40 	uint32_t buf_pos = 0;
41 	uint32_t i = 0;
42 
43 	if (buf_size >= target_size) {
44 		for (i = 0; i < msg_size; i++) {
45 			if (i % bytes_per_line == 0)
46 				buf[buf_pos++] = '\n';
47 			sprintf(&buf[buf_pos], "%02X ", msg[i]);
48 			buf_pos += byte_size;
49 		}
50 		buf[buf_pos++] = '\0';
51 	}
52 }
53 
54 char *mod_hdcp_status_to_str(int32_t status)
55 {
56 	switch (status) {
57 	case MOD_HDCP_STATUS_SUCCESS:
58 		return "MOD_HDCP_STATUS_SUCCESS";
59 	case MOD_HDCP_STATUS_FAILURE:
60 		return "MOD_HDCP_STATUS_FAILURE";
61 	case MOD_HDCP_STATUS_RESET_NEEDED:
62 		return "MOD_HDCP_STATUS_RESET_NEEDED";
63 	case MOD_HDCP_STATUS_DISPLAY_OUT_OF_BOUND:
64 		return "MOD_HDCP_STATUS_DISPLAY_OUT_OF_BOUND";
65 	case MOD_HDCP_STATUS_DISPLAY_NOT_FOUND:
66 		return "MOD_HDCP_STATUS_DISPLAY_NOT_FOUND";
67 	case MOD_HDCP_STATUS_INVALID_STATE:
68 		return "MOD_HDCP_STATUS_INVALID_STATE";
69 	case MOD_HDCP_STATUS_NOT_IMPLEMENTED:
70 		return "MOD_HDCP_STATUS_NOT_IMPLEMENTED";
71 	case MOD_HDCP_STATUS_INTERNAL_POLICY_FAILURE:
72 		return "MOD_HDCP_STATUS_INTERNAL_POLICY_FAILURE";
73 	case MOD_HDCP_STATUS_UPDATE_TOPOLOGY_FAILURE:
74 		return "MOD_HDCP_STATUS_UPDATE_TOPOLOGY_FAILURE";
75 	case MOD_HDCP_STATUS_CREATE_PSP_SERVICE_FAILURE:
76 		return "MOD_HDCP_STATUS_CREATE_PSP_SERVICE_FAILURE";
77 	case MOD_HDCP_STATUS_DESTROY_PSP_SERVICE_FAILURE:
78 		return "MOD_HDCP_STATUS_DESTROY_PSP_SERVICE_FAILURE";
79 	case MOD_HDCP_STATUS_HDCP1_CREATE_SESSION_FAILURE:
80 		return "MOD_HDCP_STATUS_HDCP1_CREATE_SESSION_FAILURE";
81 	case MOD_HDCP_STATUS_HDCP1_DESTROY_SESSION_FAILURE:
82 		return "MOD_HDCP_STATUS_HDCP1_DESTROY_SESSION_FAILURE";
83 	case MOD_HDCP_STATUS_HDCP1_VALIDATE_ENCRYPTION_FAILURE:
84 		return "MOD_HDCP_STATUS_HDCP1_VALIDATE_ENCRYPTION_FAILURE";
85 	case MOD_HDCP_STATUS_HDCP1_NOT_HDCP_REPEATER:
86 		return "MOD_HDCP_STATUS_HDCP1_NOT_HDCP_REPEATER";
87 	case MOD_HDCP_STATUS_HDCP1_NOT_CAPABLE:
88 		return "MOD_HDCP_STATUS_HDCP1_NOT_CAPABLE";
89 	case MOD_HDCP_STATUS_HDCP1_R0_PRIME_PENDING:
90 		return "MOD_HDCP_STATUS_HDCP1_R0_PRIME_PENDING";
91 	case MOD_HDCP_STATUS_HDCP1_VALIDATE_RX_FAILURE:
92 		return "MOD_HDCP_STATUS_HDCP1_VALIDATE_RX_FAILURE";
93 	case MOD_HDCP_STATUS_HDCP1_KSV_LIST_NOT_READY:
94 		return "MOD_HDCP_STATUS_HDCP1_KSV_LIST_NOT_READY";
95 	case MOD_HDCP_STATUS_HDCP1_VALIDATE_KSV_LIST_FAILURE:
96 		return "MOD_HDCP_STATUS_HDCP1_VALIDATE_KSV_LIST_FAILURE";
97 	case MOD_HDCP_STATUS_HDCP1_ENABLE_ENCRYPTION:
98 		return "MOD_HDCP_STATUS_HDCP1_ENABLE_ENCRYPTION";
99 	case MOD_HDCP_STATUS_HDCP1_ENABLE_STREAM_ENCRYPTION_FAILURE:
100 		return "MOD_HDCP_STATUS_HDCP1_ENABLE_STREAM_ENCRYPTION_FAILURE";
101 	case MOD_HDCP_STATUS_HDCP1_MAX_CASCADE_EXCEEDED_FAILURE:
102 		return "MOD_HDCP_STATUS_HDCP1_MAX_CASCADE_EXCEEDED_FAILURE";
103 	case MOD_HDCP_STATUS_HDCP1_MAX_DEVS_EXCEEDED_FAILURE:
104 		return "MOD_HDCP_STATUS_HDCP1_MAX_DEVS_EXCEEDED_FAILURE";
105 	case MOD_HDCP_STATUS_HDCP1_DEVICE_COUNT_MISMATCH_FAILURE:
106 		return "MOD_HDCP_STATUS_HDCP1_DEVICE_COUNT_MISMATCH_FAILURE";
107 	case MOD_HDCP_STATUS_HDCP1_LINK_INTEGRITY_FAILURE:
108 		return "MOD_HDCP_STATUS_HDCP1_LINK_INTEGRITY_FAILURE";
109 	case MOD_HDCP_STATUS_HDCP1_REAUTH_REQUEST_ISSUED:
110 		return "MOD_HDCP_STATUS_HDCP1_REAUTH_REQUEST_ISSUED";
111 	case MOD_HDCP_STATUS_HDCP1_LINK_MAINTENANCE_FAILURE:
112 		return "MOD_HDCP_STATUS_HDCP1_LINK_MAINTENANCE_FAILURE";
113 	case MOD_HDCP_STATUS_HDCP1_INVALID_BKSV:
114 		return "MOD_HDCP_STATUS_HDCP1_INVALID_BKSV";
115 	case MOD_HDCP_STATUS_DDC_FAILURE:
116 		return "MOD_HDCP_STATUS_DDC_FAILURE";
117 	case MOD_HDCP_STATUS_INVALID_OPERATION:
118 		return "MOD_HDCP_STATUS_INVALID_OPERATION";
119 	default:
120 		return "MOD_HDCP_STATUS_UNKNOWN";
121 	}
122 }
123 
124 char *mod_hdcp_state_id_to_str(int32_t id)
125 {
126 	switch (id) {
127 	case HDCP_UNINITIALIZED:
128 		return "HDCP_UNINITIALIZED";
129 	case HDCP_INITIALIZED:
130 		return "HDCP_INITIALIZED";
131 	case HDCP_CP_NOT_DESIRED:
132 		return "HDCP_CP_NOT_DESIRED";
133 	case H1_A0_WAIT_FOR_ACTIVE_RX:
134 		return "H1_A0_WAIT_FOR_ACTIVE_RX";
135 	case H1_A1_EXCHANGE_KSVS:
136 		return "H1_A1_EXCHANGE_KSVS";
137 	case H1_A2_COMPUTATIONS_A3_VALIDATE_RX_A6_TEST_FOR_REPEATER:
138 		return "H1_A2_COMPUTATIONS_A3_VALIDATE_RX_A6_TEST_FOR_REPEATER";
139 	case H1_A45_AUTHENTICATED:
140 		return "H1_A45_AUTHENTICATED";
141 	case H1_A8_WAIT_FOR_READY:
142 		return "H1_A8_WAIT_FOR_READY";
143 	case H1_A9_READ_KSV_LIST:
144 		return "H1_A9_READ_KSV_LIST";
145 	case D1_A0_DETERMINE_RX_HDCP_CAPABLE:
146 		return "D1_A0_DETERMINE_RX_HDCP_CAPABLE";
147 	case D1_A1_EXCHANGE_KSVS:
148 		return "D1_A1_EXCHANGE_KSVS";
149 	case D1_A23_WAIT_FOR_R0_PRIME:
150 		return "D1_A23_WAIT_FOR_R0_PRIME";
151 	case D1_A2_COMPUTATIONS_A3_VALIDATE_RX_A5_TEST_FOR_REPEATER:
152 		return "D1_A2_COMPUTATIONS_A3_VALIDATE_RX_A5_TEST_FOR_REPEATER";
153 	case D1_A4_AUTHENTICATED:
154 		return "D1_A4_AUTHENTICATED";
155 	case D1_A6_WAIT_FOR_READY:
156 		return "D1_A6_WAIT_FOR_READY";
157 	case D1_A7_READ_KSV_LIST:
158 		return "D1_A7_READ_KSV_LIST";
159 	default:
160 		return "UNKNOWN_STATE_ID";
161 	};
162 }
163 
164