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 | #include "hdcp.h" |
27 | |
28 | static inline enum mod_hdcp_status validate_bksv(struct mod_hdcp *hdcp) |
29 | { |
30 | uint64_t n = 0; |
31 | uint8_t count = 0; |
32 | u8 bksv[sizeof(n)] = { }; |
33 | |
34 | memcpy(bksv, hdcp->auth.msg.hdcp1.bksv, sizeof(hdcp->auth.msg.hdcp1.bksv)); |
35 | n = *(uint64_t *)bksv; |
36 | |
37 | while (n) { |
38 | count++; |
39 | n &= (n - 1); |
40 | } |
41 | return (count == 20) ? MOD_HDCP_STATUS_SUCCESS : |
42 | MOD_HDCP_STATUS_HDCP1_INVALID_BKSV; |
43 | } |
44 | |
45 | static inline enum mod_hdcp_status check_ksv_ready(struct mod_hdcp *hdcp) |
46 | { |
47 | if (is_dp_hdcp(hdcp)) |
48 | return (hdcp->auth.msg.hdcp1.bstatus & DP_BSTATUS_READY) ? |
49 | MOD_HDCP_STATUS_SUCCESS : |
50 | MOD_HDCP_STATUS_HDCP1_KSV_LIST_NOT_READY; |
51 | return (hdcp->auth.msg.hdcp1.bcaps & DRM_HDCP_DDC_BCAPS_KSV_FIFO_READY) ? |
52 | MOD_HDCP_STATUS_SUCCESS : |
53 | MOD_HDCP_STATUS_HDCP1_KSV_LIST_NOT_READY; |
54 | } |
55 | |
56 | static inline enum mod_hdcp_status check_hdcp_capable_dp(struct mod_hdcp *hdcp) |
57 | { |
58 | return (hdcp->auth.msg.hdcp1.bcaps & DP_BCAPS_HDCP_CAPABLE) ? |
59 | MOD_HDCP_STATUS_SUCCESS : |
60 | MOD_HDCP_STATUS_HDCP1_NOT_CAPABLE; |
61 | } |
62 | |
63 | static inline enum mod_hdcp_status check_r0p_available_dp(struct mod_hdcp *hdcp) |
64 | { |
65 | enum mod_hdcp_status status; |
66 | |
67 | if (is_dp_hdcp(hdcp)) { |
68 | status = (hdcp->auth.msg.hdcp1.bstatus & |
69 | DP_BSTATUS_R0_PRIME_READY) ? |
70 | MOD_HDCP_STATUS_SUCCESS : |
71 | MOD_HDCP_STATUS_HDCP1_R0_PRIME_PENDING; |
72 | } else { |
73 | status = MOD_HDCP_STATUS_INVALID_OPERATION; |
74 | } |
75 | return status; |
76 | } |
77 | |
78 | static inline enum mod_hdcp_status check_link_integrity_dp( |
79 | struct mod_hdcp *hdcp) |
80 | { |
81 | return (hdcp->auth.msg.hdcp1.bstatus & |
82 | DP_BSTATUS_LINK_FAILURE) ? |
83 | MOD_HDCP_STATUS_HDCP1_LINK_INTEGRITY_FAILURE : |
84 | MOD_HDCP_STATUS_SUCCESS; |
85 | } |
86 | |
87 | static inline enum mod_hdcp_status check_no_reauthentication_request_dp( |
88 | struct mod_hdcp *hdcp) |
89 | { |
90 | return (hdcp->auth.msg.hdcp1.bstatus & DP_BSTATUS_REAUTH_REQ) ? |
91 | MOD_HDCP_STATUS_HDCP1_REAUTH_REQUEST_ISSUED : |
92 | MOD_HDCP_STATUS_SUCCESS; |
93 | } |
94 | |
95 | static inline enum mod_hdcp_status check_no_max_cascade(struct mod_hdcp *hdcp) |
96 | { |
97 | enum mod_hdcp_status status; |
98 | |
99 | if (is_dp_hdcp(hdcp)) |
100 | status = DRM_HDCP_MAX_CASCADE_EXCEEDED(hdcp->auth.msg.hdcp1.binfo_dp >> 8) |
101 | ? MOD_HDCP_STATUS_HDCP1_MAX_CASCADE_EXCEEDED_FAILURE |
102 | : MOD_HDCP_STATUS_SUCCESS; |
103 | else |
104 | status = DRM_HDCP_MAX_CASCADE_EXCEEDED(hdcp->auth.msg.hdcp1.bstatus >> 8) |
105 | ? MOD_HDCP_STATUS_HDCP1_MAX_CASCADE_EXCEEDED_FAILURE |
106 | : MOD_HDCP_STATUS_SUCCESS; |
107 | return status; |
108 | } |
109 | |
110 | static inline enum mod_hdcp_status check_no_max_devs(struct mod_hdcp *hdcp) |
111 | { |
112 | enum mod_hdcp_status status; |
113 | |
114 | if (is_dp_hdcp(hdcp)) |
115 | status = DRM_HDCP_MAX_DEVICE_EXCEEDED(hdcp->auth.msg.hdcp1.binfo_dp) ? |
116 | MOD_HDCP_STATUS_HDCP1_MAX_DEVS_EXCEEDED_FAILURE : |
117 | MOD_HDCP_STATUS_SUCCESS; |
118 | else |
119 | status = DRM_HDCP_MAX_DEVICE_EXCEEDED(hdcp->auth.msg.hdcp1.bstatus) ? |
120 | MOD_HDCP_STATUS_HDCP1_MAX_DEVS_EXCEEDED_FAILURE : |
121 | MOD_HDCP_STATUS_SUCCESS; |
122 | return status; |
123 | } |
124 | |
125 | static inline uint8_t get_device_count(struct mod_hdcp *hdcp) |
126 | { |
127 | return is_dp_hdcp(hdcp) ? |
128 | DRM_HDCP_NUM_DOWNSTREAM(hdcp->auth.msg.hdcp1.binfo_dp) : |
129 | DRM_HDCP_NUM_DOWNSTREAM(hdcp->auth.msg.hdcp1.bstatus); |
130 | } |
131 | |
132 | static inline enum mod_hdcp_status check_device_count(struct mod_hdcp *hdcp) |
133 | { |
134 | /* Avoid device count == 0 to do authentication */ |
135 | if (get_device_count(hdcp) == 0) |
136 | return MOD_HDCP_STATUS_HDCP1_DEVICE_COUNT_MISMATCH_FAILURE; |
137 | |
138 | /* Some MST display may choose to report the internal panel as an HDCP RX. |
139 | * To update this condition with 1(because the immediate repeater's internal |
140 | * panel is possibly not included in DEVICE_COUNT) + get_device_count(hdcp). |
141 | * Device count must be greater than or equal to tracked hdcp displays. |
142 | */ |
143 | return ((1 + get_device_count(hdcp)) < get_active_display_count(hdcp)) ? |
144 | MOD_HDCP_STATUS_HDCP1_DEVICE_COUNT_MISMATCH_FAILURE : |
145 | MOD_HDCP_STATUS_SUCCESS; |
146 | } |
147 | |
148 | static enum mod_hdcp_status wait_for_active_rx(struct mod_hdcp *hdcp, |
149 | struct mod_hdcp_event_context *event_ctx, |
150 | struct mod_hdcp_transition_input_hdcp1 *input) |
151 | { |
152 | enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS; |
153 | |
154 | if (event_ctx->event != MOD_HDCP_EVENT_CALLBACK) { |
155 | event_ctx->unexpected_event = 1; |
156 | goto out; |
157 | } |
158 | |
159 | if (!mod_hdcp_execute_and_set(func: mod_hdcp_read_bksv, |
160 | flag: &input->bksv_read, status: &status, |
161 | hdcp, str: "bksv_read" )) |
162 | goto out; |
163 | if (!mod_hdcp_execute_and_set(func: mod_hdcp_read_bcaps, |
164 | flag: &input->bcaps_read, status: &status, |
165 | hdcp, str: "bcaps_read" )) |
166 | goto out; |
167 | out: |
168 | return status; |
169 | } |
170 | |
171 | static enum mod_hdcp_status exchange_ksvs(struct mod_hdcp *hdcp, |
172 | struct mod_hdcp_event_context *event_ctx, |
173 | struct mod_hdcp_transition_input_hdcp1 *input) |
174 | { |
175 | enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS; |
176 | |
177 | if (event_ctx->event != MOD_HDCP_EVENT_CALLBACK) { |
178 | event_ctx->unexpected_event = 1; |
179 | goto out; |
180 | } |
181 | |
182 | if (!mod_hdcp_execute_and_set(func: mod_hdcp_hdcp1_create_session, |
183 | flag: &input->create_session, status: &status, |
184 | hdcp, str: "create_session" )) |
185 | goto out; |
186 | if (!mod_hdcp_execute_and_set(func: mod_hdcp_write_an, |
187 | flag: &input->an_write, status: &status, |
188 | hdcp, str: "an_write" )) |
189 | goto out; |
190 | if (!mod_hdcp_execute_and_set(func: mod_hdcp_write_aksv, |
191 | flag: &input->aksv_write, status: &status, |
192 | hdcp, str: "aksv_write" )) |
193 | goto out; |
194 | if (!mod_hdcp_execute_and_set(func: mod_hdcp_read_bksv, |
195 | flag: &input->bksv_read, status: &status, |
196 | hdcp, str: "bksv_read" )) |
197 | goto out; |
198 | if (!mod_hdcp_execute_and_set(func: validate_bksv, |
199 | flag: &input->bksv_validation, status: &status, |
200 | hdcp, str: "bksv_validation" )) |
201 | goto out; |
202 | if (hdcp->auth.msg.hdcp1.ainfo) { |
203 | if (!mod_hdcp_execute_and_set(func: mod_hdcp_write_ainfo, |
204 | flag: &input->ainfo_write, status: &status, |
205 | hdcp, str: "ainfo_write" )) |
206 | goto out; |
207 | } |
208 | out: |
209 | return status; |
210 | } |
211 | |
212 | static enum mod_hdcp_status computations_validate_rx_test_for_repeater( |
213 | struct mod_hdcp *hdcp, |
214 | struct mod_hdcp_event_context *event_ctx, |
215 | struct mod_hdcp_transition_input_hdcp1 *input) |
216 | { |
217 | enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS; |
218 | |
219 | if (event_ctx->event != MOD_HDCP_EVENT_CALLBACK) { |
220 | event_ctx->unexpected_event = 1; |
221 | goto out; |
222 | } |
223 | |
224 | if (!mod_hdcp_execute_and_set(func: mod_hdcp_read_r0p, |
225 | flag: &input->r0p_read, status: &status, |
226 | hdcp, str: "r0p_read" )) |
227 | goto out; |
228 | if (!mod_hdcp_execute_and_set(func: mod_hdcp_hdcp1_validate_rx, |
229 | flag: &input->rx_validation, status: &status, |
230 | hdcp, str: "rx_validation" )) |
231 | goto out; |
232 | if (hdcp->connection.is_repeater) { |
233 | if (!hdcp->connection.link.adjust.hdcp1.postpone_encryption) |
234 | if (!mod_hdcp_execute_and_set( |
235 | func: mod_hdcp_hdcp1_enable_encryption, |
236 | flag: &input->encryption, status: &status, |
237 | hdcp, str: "encryption" )) |
238 | goto out; |
239 | } else { |
240 | if (!mod_hdcp_execute_and_set(func: mod_hdcp_hdcp1_enable_encryption, |
241 | flag: &input->encryption, status: &status, |
242 | hdcp, str: "encryption" )) |
243 | goto out; |
244 | if (is_dp_mst_hdcp(hdcp)) |
245 | if (!mod_hdcp_execute_and_set( |
246 | func: mod_hdcp_hdcp1_enable_dp_stream_encryption, |
247 | flag: &input->stream_encryption_dp, status: &status, |
248 | hdcp, str: "stream_encryption_dp" )) |
249 | goto out; |
250 | } |
251 | out: |
252 | return status; |
253 | } |
254 | |
255 | static enum mod_hdcp_status authenticated(struct mod_hdcp *hdcp, |
256 | struct mod_hdcp_event_context *event_ctx, |
257 | struct mod_hdcp_transition_input_hdcp1 *input) |
258 | { |
259 | enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS; |
260 | |
261 | if (event_ctx->event != MOD_HDCP_EVENT_CALLBACK) { |
262 | event_ctx->unexpected_event = 1; |
263 | goto out; |
264 | } |
265 | |
266 | mod_hdcp_execute_and_set(func: mod_hdcp_hdcp1_link_maintenance, |
267 | flag: &input->link_maintenance, status: &status, |
268 | hdcp, str: "link_maintenance" ); |
269 | out: |
270 | return status; |
271 | } |
272 | |
273 | static enum mod_hdcp_status wait_for_ready(struct mod_hdcp *hdcp, |
274 | struct mod_hdcp_event_context *event_ctx, |
275 | struct mod_hdcp_transition_input_hdcp1 *input) |
276 | { |
277 | enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS; |
278 | |
279 | if (event_ctx->event != MOD_HDCP_EVENT_CALLBACK && |
280 | event_ctx->event != MOD_HDCP_EVENT_CPIRQ && |
281 | event_ctx->event != MOD_HDCP_EVENT_WATCHDOG_TIMEOUT) { |
282 | event_ctx->unexpected_event = 1; |
283 | goto out; |
284 | } |
285 | |
286 | if (is_dp_hdcp(hdcp)) { |
287 | if (!mod_hdcp_execute_and_set(func: mod_hdcp_read_bstatus, |
288 | flag: &input->bstatus_read, status: &status, |
289 | hdcp, str: "bstatus_read" )) |
290 | goto out; |
291 | if (!mod_hdcp_execute_and_set(func: check_link_integrity_dp, |
292 | flag: &input->link_integrity_check, status: &status, |
293 | hdcp, str: "link_integrity_check" )) |
294 | goto out; |
295 | if (!mod_hdcp_execute_and_set(func: check_no_reauthentication_request_dp, |
296 | flag: &input->reauth_request_check, status: &status, |
297 | hdcp, str: "reauth_request_check" )) |
298 | goto out; |
299 | } else { |
300 | if (!mod_hdcp_execute_and_set(func: mod_hdcp_read_bcaps, |
301 | flag: &input->bcaps_read, status: &status, |
302 | hdcp, str: "bcaps_read" )) |
303 | goto out; |
304 | } |
305 | if (!mod_hdcp_execute_and_set(func: check_ksv_ready, |
306 | flag: &input->ready_check, status: &status, |
307 | hdcp, str: "ready_check" )) |
308 | goto out; |
309 | out: |
310 | return status; |
311 | } |
312 | |
313 | static enum mod_hdcp_status read_ksv_list(struct mod_hdcp *hdcp, |
314 | struct mod_hdcp_event_context *event_ctx, |
315 | struct mod_hdcp_transition_input_hdcp1 *input) |
316 | { |
317 | enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS; |
318 | uint8_t device_count; |
319 | |
320 | if (event_ctx->event != MOD_HDCP_EVENT_CALLBACK) { |
321 | event_ctx->unexpected_event = 1; |
322 | goto out; |
323 | } |
324 | |
325 | if (is_dp_hdcp(hdcp)) { |
326 | if (!mod_hdcp_execute_and_set(func: mod_hdcp_read_binfo, |
327 | flag: &input->binfo_read_dp, status: &status, |
328 | hdcp, str: "binfo_read_dp" )) |
329 | goto out; |
330 | } else { |
331 | if (!mod_hdcp_execute_and_set(func: mod_hdcp_read_bstatus, |
332 | flag: &input->bstatus_read, status: &status, |
333 | hdcp, str: "bstatus_read" )) |
334 | goto out; |
335 | } |
336 | if (!mod_hdcp_execute_and_set(func: check_no_max_cascade, |
337 | flag: &input->max_cascade_check, status: &status, |
338 | hdcp, str: "max_cascade_check" )) |
339 | goto out; |
340 | if (!mod_hdcp_execute_and_set(func: check_no_max_devs, |
341 | flag: &input->max_devs_check, status: &status, |
342 | hdcp, str: "max_devs_check" )) |
343 | goto out; |
344 | if (!mod_hdcp_execute_and_set(func: check_device_count, |
345 | flag: &input->device_count_check, status: &status, |
346 | hdcp, str: "device_count_check" )) |
347 | goto out; |
348 | device_count = get_device_count(hdcp); |
349 | hdcp->auth.msg.hdcp1.ksvlist_size = device_count*5; |
350 | if (!mod_hdcp_execute_and_set(func: mod_hdcp_read_ksvlist, |
351 | flag: &input->ksvlist_read, status: &status, |
352 | hdcp, str: "ksvlist_read" )) |
353 | goto out; |
354 | if (!mod_hdcp_execute_and_set(func: mod_hdcp_read_vp, |
355 | flag: &input->vp_read, status: &status, |
356 | hdcp, str: "vp_read" )) |
357 | goto out; |
358 | if (!mod_hdcp_execute_and_set(func: mod_hdcp_hdcp1_validate_ksvlist_vp, |
359 | flag: &input->ksvlist_vp_validation, status: &status, |
360 | hdcp, str: "ksvlist_vp_validation" )) |
361 | goto out; |
362 | if (input->encryption != PASS) |
363 | if (!mod_hdcp_execute_and_set(func: mod_hdcp_hdcp1_enable_encryption, |
364 | flag: &input->encryption, status: &status, |
365 | hdcp, str: "encryption" )) |
366 | goto out; |
367 | if (is_dp_mst_hdcp(hdcp)) |
368 | if (!mod_hdcp_execute_and_set( |
369 | func: mod_hdcp_hdcp1_enable_dp_stream_encryption, |
370 | flag: &input->stream_encryption_dp, status: &status, |
371 | hdcp, str: "stream_encryption_dp" )) |
372 | goto out; |
373 | out: |
374 | return status; |
375 | } |
376 | |
377 | static enum mod_hdcp_status determine_rx_hdcp_capable_dp(struct mod_hdcp *hdcp, |
378 | struct mod_hdcp_event_context *event_ctx, |
379 | struct mod_hdcp_transition_input_hdcp1 *input) |
380 | { |
381 | enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS; |
382 | |
383 | if (event_ctx->event != MOD_HDCP_EVENT_CALLBACK) { |
384 | event_ctx->unexpected_event = 1; |
385 | goto out; |
386 | } |
387 | |
388 | if (!mod_hdcp_execute_and_set(func: mod_hdcp_read_bcaps, |
389 | flag: &input->bcaps_read, status: &status, |
390 | hdcp, str: "bcaps_read" )) |
391 | goto out; |
392 | if (!mod_hdcp_execute_and_set(func: check_hdcp_capable_dp, |
393 | flag: &input->hdcp_capable_dp, status: &status, |
394 | hdcp, str: "hdcp_capable_dp" )) |
395 | goto out; |
396 | out: |
397 | return status; |
398 | } |
399 | |
400 | static enum mod_hdcp_status wait_for_r0_prime_dp(struct mod_hdcp *hdcp, |
401 | struct mod_hdcp_event_context *event_ctx, |
402 | struct mod_hdcp_transition_input_hdcp1 *input) |
403 | { |
404 | enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS; |
405 | |
406 | if (event_ctx->event != MOD_HDCP_EVENT_CPIRQ && |
407 | event_ctx->event != MOD_HDCP_EVENT_WATCHDOG_TIMEOUT) { |
408 | event_ctx->unexpected_event = 1; |
409 | goto out; |
410 | } |
411 | |
412 | if (!mod_hdcp_execute_and_set(func: mod_hdcp_read_bstatus, |
413 | flag: &input->bstatus_read, status: &status, |
414 | hdcp, str: "bstatus_read" )) |
415 | goto out; |
416 | if (!mod_hdcp_execute_and_set(func: check_r0p_available_dp, |
417 | flag: &input->r0p_available_dp, status: &status, |
418 | hdcp, str: "r0p_available_dp" )) |
419 | goto out; |
420 | out: |
421 | return status; |
422 | } |
423 | |
424 | static enum mod_hdcp_status authenticated_dp(struct mod_hdcp *hdcp, |
425 | struct mod_hdcp_event_context *event_ctx, |
426 | struct mod_hdcp_transition_input_hdcp1 *input) |
427 | { |
428 | enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS; |
429 | |
430 | if (event_ctx->event != MOD_HDCP_EVENT_CPIRQ) { |
431 | event_ctx->unexpected_event = 1; |
432 | goto out; |
433 | } |
434 | |
435 | if (status == MOD_HDCP_STATUS_SUCCESS) |
436 | mod_hdcp_execute_and_set(func: mod_hdcp_read_bstatus, |
437 | flag: &input->bstatus_read, status: &status, |
438 | hdcp, str: "bstatus_read" ); |
439 | if (status == MOD_HDCP_STATUS_SUCCESS) |
440 | mod_hdcp_execute_and_set(func: check_link_integrity_dp, |
441 | flag: &input->link_integrity_check, status: &status, |
442 | hdcp, str: "link_integrity_check" ); |
443 | if (status == MOD_HDCP_STATUS_SUCCESS) |
444 | mod_hdcp_execute_and_set(func: check_no_reauthentication_request_dp, |
445 | flag: &input->reauth_request_check, status: &status, |
446 | hdcp, str: "reauth_request_check" ); |
447 | out: |
448 | return status; |
449 | } |
450 | |
451 | uint8_t mod_hdcp_execute_and_set( |
452 | mod_hdcp_action func, uint8_t *flag, |
453 | enum mod_hdcp_status *status, struct mod_hdcp *hdcp, char *str) |
454 | { |
455 | *status = func(hdcp); |
456 | if (*status == MOD_HDCP_STATUS_SUCCESS && *flag != PASS) { |
457 | HDCP_INPUT_PASS_TRACE(hdcp, str); |
458 | *flag = PASS; |
459 | } else if (*status != MOD_HDCP_STATUS_SUCCESS && *flag != FAIL) { |
460 | HDCP_INPUT_FAIL_TRACE(hdcp, str); |
461 | *flag = FAIL; |
462 | } |
463 | return (*status == MOD_HDCP_STATUS_SUCCESS); |
464 | } |
465 | |
466 | enum mod_hdcp_status mod_hdcp_hdcp1_execution(struct mod_hdcp *hdcp, |
467 | struct mod_hdcp_event_context *event_ctx, |
468 | struct mod_hdcp_transition_input_hdcp1 *input) |
469 | { |
470 | enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS; |
471 | |
472 | switch (current_state(hdcp)) { |
473 | case H1_A0_WAIT_FOR_ACTIVE_RX: |
474 | status = wait_for_active_rx(hdcp, event_ctx, input); |
475 | break; |
476 | case H1_A1_EXCHANGE_KSVS: |
477 | status = exchange_ksvs(hdcp, event_ctx, input); |
478 | break; |
479 | case H1_A2_COMPUTATIONS_A3_VALIDATE_RX_A6_TEST_FOR_REPEATER: |
480 | status = computations_validate_rx_test_for_repeater(hdcp, |
481 | event_ctx, input); |
482 | break; |
483 | case H1_A45_AUTHENTICATED: |
484 | status = authenticated(hdcp, event_ctx, input); |
485 | break; |
486 | case H1_A8_WAIT_FOR_READY: |
487 | status = wait_for_ready(hdcp, event_ctx, input); |
488 | break; |
489 | case H1_A9_READ_KSV_LIST: |
490 | status = read_ksv_list(hdcp, event_ctx, input); |
491 | break; |
492 | default: |
493 | status = MOD_HDCP_STATUS_INVALID_STATE; |
494 | break; |
495 | } |
496 | |
497 | return status; |
498 | } |
499 | |
500 | enum mod_hdcp_status mod_hdcp_hdcp1_dp_execution(struct mod_hdcp *hdcp, |
501 | struct mod_hdcp_event_context *event_ctx, |
502 | struct mod_hdcp_transition_input_hdcp1 *input) |
503 | { |
504 | enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS; |
505 | |
506 | switch (current_state(hdcp)) { |
507 | case D1_A0_DETERMINE_RX_HDCP_CAPABLE: |
508 | status = determine_rx_hdcp_capable_dp(hdcp, event_ctx, input); |
509 | break; |
510 | case D1_A1_EXCHANGE_KSVS: |
511 | status = exchange_ksvs(hdcp, event_ctx, input); |
512 | break; |
513 | case D1_A23_WAIT_FOR_R0_PRIME: |
514 | status = wait_for_r0_prime_dp(hdcp, event_ctx, input); |
515 | break; |
516 | case D1_A2_COMPUTATIONS_A3_VALIDATE_RX_A5_TEST_FOR_REPEATER: |
517 | status = computations_validate_rx_test_for_repeater( |
518 | hdcp, event_ctx, input); |
519 | break; |
520 | case D1_A4_AUTHENTICATED: |
521 | status = authenticated_dp(hdcp, event_ctx, input); |
522 | break; |
523 | case D1_A6_WAIT_FOR_READY: |
524 | status = wait_for_ready(hdcp, event_ctx, input); |
525 | break; |
526 | case D1_A7_READ_KSV_LIST: |
527 | status = read_ksv_list(hdcp, event_ctx, input); |
528 | break; |
529 | default: |
530 | status = MOD_HDCP_STATUS_INVALID_STATE; |
531 | break; |
532 | } |
533 | |
534 | return status; |
535 | } |
536 | |