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
mod_hdcp_dump_binary_message(uint8_t * msg,uint32_t msg_size,uint8_t * buf,uint32_t buf_size)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
mod_hdcp_log_ddc_trace(struct mod_hdcp * hdcp)54 void mod_hdcp_log_ddc_trace(struct mod_hdcp *hdcp)
55 {
56 if (is_hdcp1(hdcp)) {
57 HDCP_DDC_READ_TRACE(hdcp, "BKSV", hdcp->auth.msg.hdcp1.bksv,
58 sizeof(hdcp->auth.msg.hdcp1.bksv));
59 HDCP_DDC_READ_TRACE(hdcp, "BCAPS", &hdcp->auth.msg.hdcp1.bcaps,
60 sizeof(hdcp->auth.msg.hdcp1.bcaps));
61 HDCP_DDC_READ_TRACE(hdcp, "BSTATUS",
62 (uint8_t *)&hdcp->auth.msg.hdcp1.bstatus,
63 sizeof(hdcp->auth.msg.hdcp1.bstatus));
64 HDCP_DDC_WRITE_TRACE(hdcp, "AN", hdcp->auth.msg.hdcp1.an,
65 sizeof(hdcp->auth.msg.hdcp1.an));
66 HDCP_DDC_WRITE_TRACE(hdcp, "AKSV", hdcp->auth.msg.hdcp1.aksv,
67 sizeof(hdcp->auth.msg.hdcp1.aksv));
68 HDCP_DDC_WRITE_TRACE(hdcp, "AINFO", &hdcp->auth.msg.hdcp1.ainfo,
69 sizeof(hdcp->auth.msg.hdcp1.ainfo));
70 HDCP_DDC_READ_TRACE(hdcp, "RI' / R0'",
71 (uint8_t *)&hdcp->auth.msg.hdcp1.r0p,
72 sizeof(hdcp->auth.msg.hdcp1.r0p));
73 HDCP_DDC_READ_TRACE(hdcp, "BINFO",
74 (uint8_t *)&hdcp->auth.msg.hdcp1.binfo_dp,
75 sizeof(hdcp->auth.msg.hdcp1.binfo_dp));
76 HDCP_DDC_READ_TRACE(hdcp, "KSVLIST", hdcp->auth.msg.hdcp1.ksvlist,
77 hdcp->auth.msg.hdcp1.ksvlist_size);
78 HDCP_DDC_READ_TRACE(hdcp, "V'", hdcp->auth.msg.hdcp1.vp,
79 sizeof(hdcp->auth.msg.hdcp1.vp));
80 } else if (is_hdcp2(hdcp)) {
81 HDCP_DDC_READ_TRACE(hdcp, "HDCP2Version",
82 &hdcp->auth.msg.hdcp2.hdcp2version_hdmi,
83 sizeof(hdcp->auth.msg.hdcp2.hdcp2version_hdmi));
84 HDCP_DDC_READ_TRACE(hdcp, "Rx Caps", hdcp->auth.msg.hdcp2.rxcaps_dp,
85 sizeof(hdcp->auth.msg.hdcp2.rxcaps_dp));
86 HDCP_DDC_WRITE_TRACE(hdcp, "AKE Init", hdcp->auth.msg.hdcp2.ake_init,
87 sizeof(hdcp->auth.msg.hdcp2.ake_init));
88 HDCP_DDC_READ_TRACE(hdcp, "AKE Cert", hdcp->auth.msg.hdcp2.ake_cert,
89 sizeof(hdcp->auth.msg.hdcp2.ake_cert));
90 HDCP_DDC_WRITE_TRACE(hdcp, "Stored KM",
91 hdcp->auth.msg.hdcp2.ake_stored_km,
92 sizeof(hdcp->auth.msg.hdcp2.ake_stored_km));
93 HDCP_DDC_WRITE_TRACE(hdcp, "No Stored KM",
94 hdcp->auth.msg.hdcp2.ake_no_stored_km,
95 sizeof(hdcp->auth.msg.hdcp2.ake_no_stored_km));
96 HDCP_DDC_READ_TRACE(hdcp, "H'", hdcp->auth.msg.hdcp2.ake_h_prime,
97 sizeof(hdcp->auth.msg.hdcp2.ake_h_prime));
98 HDCP_DDC_READ_TRACE(hdcp, "Pairing Info",
99 hdcp->auth.msg.hdcp2.ake_pairing_info,
100 sizeof(hdcp->auth.msg.hdcp2.ake_pairing_info));
101 HDCP_DDC_WRITE_TRACE(hdcp, "LC Init", hdcp->auth.msg.hdcp2.lc_init,
102 sizeof(hdcp->auth.msg.hdcp2.lc_init));
103 HDCP_DDC_READ_TRACE(hdcp, "L'", hdcp->auth.msg.hdcp2.lc_l_prime,
104 sizeof(hdcp->auth.msg.hdcp2.lc_l_prime));
105 HDCP_DDC_WRITE_TRACE(hdcp, "Exchange KS", hdcp->auth.msg.hdcp2.ske_eks,
106 sizeof(hdcp->auth.msg.hdcp2.ske_eks));
107 HDCP_DDC_READ_TRACE(hdcp, "Rx Status",
108 (uint8_t *)&hdcp->auth.msg.hdcp2.rxstatus,
109 sizeof(hdcp->auth.msg.hdcp2.rxstatus));
110 HDCP_DDC_READ_TRACE(hdcp, "Rx Id List",
111 hdcp->auth.msg.hdcp2.rx_id_list,
112 hdcp->auth.msg.hdcp2.rx_id_list_size);
113 HDCP_DDC_WRITE_TRACE(hdcp, "Rx Id List Ack",
114 hdcp->auth.msg.hdcp2.repeater_auth_ack,
115 sizeof(hdcp->auth.msg.hdcp2.repeater_auth_ack));
116 HDCP_DDC_WRITE_TRACE(hdcp, "Content Stream Management",
117 hdcp->auth.msg.hdcp2.repeater_auth_stream_manage,
118 hdcp->auth.msg.hdcp2.stream_manage_size);
119 HDCP_DDC_READ_TRACE(hdcp, "Stream Ready",
120 hdcp->auth.msg.hdcp2.repeater_auth_stream_ready,
121 sizeof(hdcp->auth.msg.hdcp2.repeater_auth_stream_ready));
122 HDCP_DDC_WRITE_TRACE(hdcp, "Content Stream Type",
123 hdcp->auth.msg.hdcp2.content_stream_type_dp,
124 sizeof(hdcp->auth.msg.hdcp2.content_stream_type_dp));
125 }
126 }
127
mod_hdcp_status_to_str(int32_t status)128 char *mod_hdcp_status_to_str(int32_t status)
129 {
130 switch (status) {
131 case MOD_HDCP_STATUS_SUCCESS:
132 return "MOD_HDCP_STATUS_SUCCESS";
133 case MOD_HDCP_STATUS_FAILURE:
134 return "MOD_HDCP_STATUS_FAILURE";
135 case MOD_HDCP_STATUS_RESET_NEEDED:
136 return "MOD_HDCP_STATUS_RESET_NEEDED";
137 case MOD_HDCP_STATUS_DISPLAY_OUT_OF_BOUND:
138 return "MOD_HDCP_STATUS_DISPLAY_OUT_OF_BOUND";
139 case MOD_HDCP_STATUS_DISPLAY_NOT_FOUND:
140 return "MOD_HDCP_STATUS_DISPLAY_NOT_FOUND";
141 case MOD_HDCP_STATUS_INVALID_STATE:
142 return "MOD_HDCP_STATUS_INVALID_STATE";
143 case MOD_HDCP_STATUS_NOT_IMPLEMENTED:
144 return "MOD_HDCP_STATUS_NOT_IMPLEMENTED";
145 case MOD_HDCP_STATUS_INTERNAL_POLICY_FAILURE:
146 return "MOD_HDCP_STATUS_INTERNAL_POLICY_FAILURE";
147 case MOD_HDCP_STATUS_UPDATE_TOPOLOGY_FAILURE:
148 return "MOD_HDCP_STATUS_UPDATE_TOPOLOGY_FAILURE";
149 case MOD_HDCP_STATUS_CREATE_PSP_SERVICE_FAILURE:
150 return "MOD_HDCP_STATUS_CREATE_PSP_SERVICE_FAILURE";
151 case MOD_HDCP_STATUS_DESTROY_PSP_SERVICE_FAILURE:
152 return "MOD_HDCP_STATUS_DESTROY_PSP_SERVICE_FAILURE";
153 case MOD_HDCP_STATUS_HDCP1_CREATE_SESSION_FAILURE:
154 return "MOD_HDCP_STATUS_HDCP1_CREATE_SESSION_FAILURE";
155 case MOD_HDCP_STATUS_HDCP1_DESTROY_SESSION_FAILURE:
156 return "MOD_HDCP_STATUS_HDCP1_DESTROY_SESSION_FAILURE";
157 case MOD_HDCP_STATUS_HDCP1_VALIDATE_ENCRYPTION_FAILURE:
158 return "MOD_HDCP_STATUS_HDCP1_VALIDATE_ENCRYPTION_FAILURE";
159 case MOD_HDCP_STATUS_HDCP1_NOT_HDCP_REPEATER:
160 return "MOD_HDCP_STATUS_HDCP1_NOT_HDCP_REPEATER";
161 case MOD_HDCP_STATUS_HDCP1_NOT_CAPABLE:
162 return "MOD_HDCP_STATUS_HDCP1_NOT_CAPABLE";
163 case MOD_HDCP_STATUS_HDCP1_R0_PRIME_PENDING:
164 return "MOD_HDCP_STATUS_HDCP1_R0_PRIME_PENDING";
165 case MOD_HDCP_STATUS_HDCP1_VALIDATE_RX_FAILURE:
166 return "MOD_HDCP_STATUS_HDCP1_VALIDATE_RX_FAILURE";
167 case MOD_HDCP_STATUS_HDCP1_BKSV_REVOKED:
168 return "MOD_HDCP_STATUS_HDCP1_BKSV_REVOKED";
169 case MOD_HDCP_STATUS_HDCP1_KSV_LIST_NOT_READY:
170 return "MOD_HDCP_STATUS_HDCP1_KSV_LIST_NOT_READY";
171 case MOD_HDCP_STATUS_HDCP1_VALIDATE_KSV_LIST_FAILURE:
172 return "MOD_HDCP_STATUS_HDCP1_VALIDATE_KSV_LIST_FAILURE";
173 case MOD_HDCP_STATUS_HDCP1_KSV_LIST_REVOKED:
174 return "MOD_HDCP_STATUS_HDCP1_KSV_LIST_REVOKED";
175 case MOD_HDCP_STATUS_HDCP1_ENABLE_ENCRYPTION_FAILURE:
176 return "MOD_HDCP_STATUS_HDCP1_ENABLE_ENCRYPTION_FAILURE";
177 case MOD_HDCP_STATUS_HDCP1_ENABLE_STREAM_ENCRYPTION_FAILURE:
178 return "MOD_HDCP_STATUS_HDCP1_ENABLE_STREAM_ENCRYPTION_FAILURE";
179 case MOD_HDCP_STATUS_HDCP1_MAX_CASCADE_EXCEEDED_FAILURE:
180 return "MOD_HDCP_STATUS_HDCP1_MAX_CASCADE_EXCEEDED_FAILURE";
181 case MOD_HDCP_STATUS_HDCP1_MAX_DEVS_EXCEEDED_FAILURE:
182 return "MOD_HDCP_STATUS_HDCP1_MAX_DEVS_EXCEEDED_FAILURE";
183 case MOD_HDCP_STATUS_HDCP1_DEVICE_COUNT_MISMATCH_FAILURE:
184 return "MOD_HDCP_STATUS_HDCP1_DEVICE_COUNT_MISMATCH_FAILURE";
185 case MOD_HDCP_STATUS_HDCP1_LINK_INTEGRITY_FAILURE:
186 return "MOD_HDCP_STATUS_HDCP1_LINK_INTEGRITY_FAILURE";
187 case MOD_HDCP_STATUS_HDCP1_REAUTH_REQUEST_ISSUED:
188 return "MOD_HDCP_STATUS_HDCP1_REAUTH_REQUEST_ISSUED";
189 case MOD_HDCP_STATUS_HDCP1_LINK_MAINTENANCE_FAILURE:
190 return "MOD_HDCP_STATUS_HDCP1_LINK_MAINTENANCE_FAILURE";
191 case MOD_HDCP_STATUS_HDCP1_INVALID_BKSV:
192 return "MOD_HDCP_STATUS_HDCP1_INVALID_BKSV";
193 case MOD_HDCP_STATUS_DDC_FAILURE:
194 return "MOD_HDCP_STATUS_DDC_FAILURE";
195 case MOD_HDCP_STATUS_INVALID_OPERATION:
196 return "MOD_HDCP_STATUS_INVALID_OPERATION";
197 case MOD_HDCP_STATUS_HDCP2_NOT_CAPABLE:
198 return "MOD_HDCP_STATUS_HDCP2_NOT_CAPABLE";
199 case MOD_HDCP_STATUS_HDCP2_CREATE_SESSION_FAILURE:
200 return "MOD_HDCP_STATUS_HDCP2_CREATE_SESSION_FAILURE";
201 case MOD_HDCP_STATUS_HDCP2_DESTROY_SESSION_FAILURE:
202 return "MOD_HDCP_STATUS_HDCP2_DESTROY_SESSION_FAILURE";
203 case MOD_HDCP_STATUS_HDCP2_PREP_AKE_INIT_FAILURE:
204 return "MOD_HDCP_STATUS_HDCP2_PREP_AKE_INIT_FAILURE";
205 case MOD_HDCP_STATUS_HDCP2_AKE_CERT_PENDING:
206 return "MOD_HDCP_STATUS_HDCP2_AKE_CERT_PENDING";
207 case MOD_HDCP_STATUS_HDCP2_H_PRIME_PENDING:
208 return "MOD_HDCP_STATUS_HDCP2_H_PRIME_PENDING";
209 case MOD_HDCP_STATUS_HDCP2_PAIRING_INFO_PENDING:
210 return "MOD_HDCP_STATUS_HDCP2_PAIRING_INFO_PENDING";
211 case MOD_HDCP_STATUS_HDCP2_VALIDATE_AKE_CERT_FAILURE:
212 return "MOD_HDCP_STATUS_HDCP2_VALIDATE_AKE_CERT_FAILURE";
213 case MOD_HDCP_STATUS_HDCP2_AKE_CERT_REVOKED:
214 return "MOD_HDCP_STATUS_HDCP2_AKE_CERT_REVOKED";
215 case MOD_HDCP_STATUS_HDCP2_VALIDATE_H_PRIME_FAILURE:
216 return "MOD_HDCP_STATUS_HDCP2_VALIDATE_H_PRIME_FAILURE";
217 case MOD_HDCP_STATUS_HDCP2_VALIDATE_PAIRING_INFO_FAILURE:
218 return "MOD_HDCP_STATUS_HDCP2_VALIDATE_PAIRING_INFO_FAILURE";
219 case MOD_HDCP_STATUS_HDCP2_PREP_LC_INIT_FAILURE:
220 return "MOD_HDCP_STATUS_HDCP2_PREP_LC_INIT_FAILURE";
221 case MOD_HDCP_STATUS_HDCP2_L_PRIME_PENDING:
222 return "MOD_HDCP_STATUS_HDCP2_L_PRIME_PENDING";
223 case MOD_HDCP_STATUS_HDCP2_VALIDATE_L_PRIME_FAILURE:
224 return "MOD_HDCP_STATUS_HDCP2_VALIDATE_L_PRIME_FAILURE";
225 case MOD_HDCP_STATUS_HDCP2_PREP_EKS_FAILURE:
226 return "MOD_HDCP_STATUS_HDCP2_PREP_EKS_FAILURE";
227 case MOD_HDCP_STATUS_HDCP2_ENABLE_ENCRYPTION_FAILURE:
228 return "MOD_HDCP_STATUS_HDCP2_ENABLE_ENCRYPTION_FAILURE";
229 case MOD_HDCP_STATUS_HDCP2_VALIDATE_RX_ID_LIST_FAILURE:
230 return "MOD_HDCP_STATUS_HDCP2_VALIDATE_RX_ID_LIST_FAILURE";
231 case MOD_HDCP_STATUS_HDCP2_RX_ID_LIST_REVOKED:
232 return "MOD_HDCP_STATUS_HDCP2_RX_ID_LIST_REVOKED";
233 case MOD_HDCP_STATUS_HDCP2_RX_ID_LIST_NOT_READY:
234 return "MOD_HDCP_STATUS_HDCP2_RX_ID_LIST_NOT_READY";
235 case MOD_HDCP_STATUS_HDCP2_ENABLE_STREAM_ENCRYPTION_FAILURE:
236 return "MOD_HDCP_STATUS_HDCP2_ENABLE_STREAM_ENCRYPTION_FAILURE";
237 case MOD_HDCP_STATUS_HDCP2_STREAM_READY_PENDING:
238 return "MOD_HDCP_STATUS_HDCP2_STREAM_READY_PENDING";
239 case MOD_HDCP_STATUS_HDCP2_VALIDATE_STREAM_READY_FAILURE:
240 return "MOD_HDCP_STATUS_HDCP2_VALIDATE_STREAM_READY_FAILURE";
241 case MOD_HDCP_STATUS_HDCP2_PREPARE_STREAM_MANAGEMENT_FAILURE:
242 return "MOD_HDCP_STATUS_HDCP2_PREPARE_STREAM_MANAGEMENT_FAILURE";
243 case MOD_HDCP_STATUS_HDCP2_REAUTH_REQUEST:
244 return "MOD_HDCP_STATUS_HDCP2_REAUTH_REQUEST";
245 case MOD_HDCP_STATUS_HDCP2_REAUTH_LINK_INTEGRITY_FAILURE:
246 return "MOD_HDCP_STATUS_HDCP2_REAUTH_LINK_INTEGRITY_FAILURE";
247 case MOD_HDCP_STATUS_HDCP2_DEVICE_COUNT_MISMATCH_FAILURE:
248 return "MOD_HDCP_STATUS_HDCP2_DEVICE_COUNT_MISMATCH_FAILURE";
249 case MOD_HDCP_STATUS_UNSUPPORTED_PSP_VER_FAILURE:
250 return "MOD_HDCP_STATUS_UNSUPPORTED_PSP_VER_FAILURE";
251 default:
252 return "MOD_HDCP_STATUS_UNKNOWN";
253 }
254 }
255
mod_hdcp_state_id_to_str(int32_t id)256 char *mod_hdcp_state_id_to_str(int32_t id)
257 {
258 switch (id) {
259 case HDCP_UNINITIALIZED:
260 return "HDCP_UNINITIALIZED";
261 case HDCP_INITIALIZED:
262 return "HDCP_INITIALIZED";
263 case HDCP_CP_NOT_DESIRED:
264 return "HDCP_CP_NOT_DESIRED";
265 case H1_A0_WAIT_FOR_ACTIVE_RX:
266 return "H1_A0_WAIT_FOR_ACTIVE_RX";
267 case H1_A1_EXCHANGE_KSVS:
268 return "H1_A1_EXCHANGE_KSVS";
269 case H1_A2_COMPUTATIONS_A3_VALIDATE_RX_A6_TEST_FOR_REPEATER:
270 return "H1_A2_COMPUTATIONS_A3_VALIDATE_RX_A6_TEST_FOR_REPEATER";
271 case H1_A45_AUTHENTICATED:
272 return "H1_A45_AUTHENTICATED";
273 case H1_A8_WAIT_FOR_READY:
274 return "H1_A8_WAIT_FOR_READY";
275 case H1_A9_READ_KSV_LIST:
276 return "H1_A9_READ_KSV_LIST";
277 case D1_A0_DETERMINE_RX_HDCP_CAPABLE:
278 return "D1_A0_DETERMINE_RX_HDCP_CAPABLE";
279 case D1_A1_EXCHANGE_KSVS:
280 return "D1_A1_EXCHANGE_KSVS";
281 case D1_A23_WAIT_FOR_R0_PRIME:
282 return "D1_A23_WAIT_FOR_R0_PRIME";
283 case D1_A2_COMPUTATIONS_A3_VALIDATE_RX_A5_TEST_FOR_REPEATER:
284 return "D1_A2_COMPUTATIONS_A3_VALIDATE_RX_A5_TEST_FOR_REPEATER";
285 case D1_A4_AUTHENTICATED:
286 return "D1_A4_AUTHENTICATED";
287 case D1_A6_WAIT_FOR_READY:
288 return "D1_A6_WAIT_FOR_READY";
289 case D1_A7_READ_KSV_LIST:
290 return "D1_A7_READ_KSV_LIST";
291 case H2_A0_KNOWN_HDCP2_CAPABLE_RX:
292 return "H2_A0_KNOWN_HDCP2_CAPABLE_RX";
293 case H2_A1_SEND_AKE_INIT:
294 return "H2_A1_SEND_AKE_INIT";
295 case H2_A1_VALIDATE_AKE_CERT:
296 return "H2_A1_VALIDATE_AKE_CERT";
297 case H2_A1_SEND_NO_STORED_KM:
298 return "H2_A1_SEND_NO_STORED_KM";
299 case H2_A1_READ_H_PRIME:
300 return "H2_A1_READ_H_PRIME";
301 case H2_A1_READ_PAIRING_INFO_AND_VALIDATE_H_PRIME:
302 return "H2_A1_READ_PAIRING_INFO_AND_VALIDATE_H_PRIME";
303 case H2_A1_SEND_STORED_KM:
304 return "H2_A1_SEND_STORED_KM";
305 case H2_A1_VALIDATE_H_PRIME:
306 return "H2_A1_VALIDATE_H_PRIME";
307 case H2_A2_LOCALITY_CHECK:
308 return "H2_A2_LOCALITY_CHECK";
309 case H2_A3_EXCHANGE_KS_AND_TEST_FOR_REPEATER:
310 return "H2_A3_EXCHANGE_KS_AND_TEST_FOR_REPEATER";
311 case H2_ENABLE_ENCRYPTION:
312 return "H2_ENABLE_ENCRYPTION";
313 case H2_A5_AUTHENTICATED:
314 return "H2_A5_AUTHENTICATED";
315 case H2_A6_WAIT_FOR_RX_ID_LIST:
316 return "H2_A6_WAIT_FOR_RX_ID_LIST";
317 case H2_A78_VERIFY_RX_ID_LIST_AND_SEND_ACK:
318 return "H2_A78_VERIFY_RX_ID_LIST_AND_SEND_ACK";
319 case H2_A9_SEND_STREAM_MANAGEMENT:
320 return "H2_A9_SEND_STREAM_MANAGEMENT";
321 case H2_A9_VALIDATE_STREAM_READY:
322 return "H2_A9_VALIDATE_STREAM_READY";
323 case D2_A0_DETERMINE_RX_HDCP_CAPABLE:
324 return "D2_A0_DETERMINE_RX_HDCP_CAPABLE";
325 case D2_A1_SEND_AKE_INIT:
326 return "D2_A1_SEND_AKE_INIT";
327 case D2_A1_VALIDATE_AKE_CERT:
328 return "D2_A1_VALIDATE_AKE_CERT";
329 case D2_A1_SEND_NO_STORED_KM:
330 return "D2_A1_SEND_NO_STORED_KM";
331 case D2_A1_READ_H_PRIME:
332 return "D2_A1_READ_H_PRIME";
333 case D2_A1_READ_PAIRING_INFO_AND_VALIDATE_H_PRIME:
334 return "D2_A1_READ_PAIRING_INFO_AND_VALIDATE_H_PRIME";
335 case D2_A1_SEND_STORED_KM:
336 return "D2_A1_SEND_STORED_KM";
337 case D2_A1_VALIDATE_H_PRIME:
338 return "D2_A1_VALIDATE_H_PRIME";
339 case D2_A2_LOCALITY_CHECK:
340 return "D2_A2_LOCALITY_CHECK";
341 case D2_A34_EXCHANGE_KS_AND_TEST_FOR_REPEATER:
342 return "D2_A34_EXCHANGE_KS_AND_TEST_FOR_REPEATER";
343 case D2_SEND_CONTENT_STREAM_TYPE:
344 return "D2_SEND_CONTENT_STREAM_TYPE";
345 case D2_ENABLE_ENCRYPTION:
346 return "D2_ENABLE_ENCRYPTION";
347 case D2_A5_AUTHENTICATED:
348 return "D2_A5_AUTHENTICATED";
349 case D2_A6_WAIT_FOR_RX_ID_LIST:
350 return "D2_A6_WAIT_FOR_RX_ID_LIST";
351 case D2_A78_VERIFY_RX_ID_LIST_AND_SEND_ACK:
352 return "D2_A78_VERIFY_RX_ID_LIST_AND_SEND_ACK";
353 case D2_A9_SEND_STREAM_MANAGEMENT:
354 return "D2_A9_SEND_STREAM_MANAGEMENT";
355 case D2_A9_VALIDATE_STREAM_READY:
356 return "D2_A9_VALIDATE_STREAM_READY";
357 default:
358 return "UNKNOWN_STATE_ID";
359 }
360 }
361
362