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
push_error_status(struct mod_hdcp * hdcp,enum mod_hdcp_status status)28 static void push_error_status(struct mod_hdcp *hdcp,
29 enum mod_hdcp_status status)
30 {
31 struct mod_hdcp_trace *trace = &hdcp->connection.trace;
32
33 if (trace->error_count < MAX_NUM_OF_ERROR_TRACE) {
34 trace->errors[trace->error_count].status = status;
35 trace->errors[trace->error_count].state_id = hdcp->state.id;
36 trace->error_count++;
37 HDCP_ERROR_TRACE(hdcp, status);
38 }
39
40 if (is_hdcp1(hdcp)) {
41 hdcp->connection.hdcp1_retry_count++;
42 if (hdcp->connection.hdcp1_retry_count == MAX_NUM_OF_ATTEMPTS)
43 hdcp->connection.link.adjust.hdcp1.disable = 1;
44 } else if (is_hdcp2(hdcp)) {
45 hdcp->connection.hdcp2_retry_count++;
46 if (hdcp->connection.hdcp2_retry_count == MAX_NUM_OF_ATTEMPTS)
47 hdcp->connection.link.adjust.hdcp2.disable = 1;
48 }
49 }
50
is_cp_desired_hdcp1(struct mod_hdcp * hdcp)51 static uint8_t is_cp_desired_hdcp1(struct mod_hdcp *hdcp)
52 {
53 int i, is_auth_needed = 0;
54
55 /* if all displays on the link don't need authentication,
56 * hdcp is not desired
57 */
58 for (i = 0; i < MAX_NUM_OF_DISPLAYS; i++) {
59 if (hdcp->displays[i].state != MOD_HDCP_DISPLAY_INACTIVE &&
60 hdcp->displays[i].adjust.disable != MOD_HDCP_DISPLAY_DISABLE_AUTHENTICATION) {
61 is_auth_needed = 1;
62 break;
63 }
64 }
65
66 return is_auth_needed &&
67 !hdcp->connection.link.adjust.hdcp1.disable &&
68 !hdcp->connection.is_hdcp1_revoked;
69 }
70
is_cp_desired_hdcp2(struct mod_hdcp * hdcp)71 static uint8_t is_cp_desired_hdcp2(struct mod_hdcp *hdcp)
72 {
73 int i, is_auth_needed = 0;
74
75 /* if all displays on the link don't need authentication,
76 * hdcp is not desired
77 */
78 for (i = 0; i < MAX_NUM_OF_DISPLAYS; i++) {
79 if (hdcp->displays[i].state != MOD_HDCP_DISPLAY_INACTIVE &&
80 hdcp->displays[i].adjust.disable != MOD_HDCP_DISPLAY_DISABLE_AUTHENTICATION) {
81 is_auth_needed = 1;
82 break;
83 }
84 }
85
86 return is_auth_needed &&
87 !hdcp->connection.link.adjust.hdcp2.disable &&
88 !hdcp->connection.is_hdcp2_revoked;
89 }
90
execution(struct mod_hdcp * hdcp,struct mod_hdcp_event_context * event_ctx,union mod_hdcp_transition_input * input)91 static enum mod_hdcp_status execution(struct mod_hdcp *hdcp,
92 struct mod_hdcp_event_context *event_ctx,
93 union mod_hdcp_transition_input *input)
94 {
95 enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
96
97 if (is_in_initialized_state(hdcp)) {
98 if (event_ctx->event != MOD_HDCP_EVENT_CALLBACK) {
99 event_ctx->unexpected_event = 1;
100 goto out;
101 }
102 /* initialize transition input */
103 memset(input, 0, sizeof(union mod_hdcp_transition_input));
104 } else if (is_in_cp_not_desired_state(hdcp)) {
105 if (event_ctx->event != MOD_HDCP_EVENT_CALLBACK) {
106 event_ctx->unexpected_event = 1;
107 goto out;
108 }
109 } else if (is_in_hdcp1_states(hdcp)) {
110 status = mod_hdcp_hdcp1_execution(hdcp, event_ctx, &input->hdcp1);
111 } else if (is_in_hdcp1_dp_states(hdcp)) {
112 status = mod_hdcp_hdcp1_dp_execution(hdcp,
113 event_ctx, &input->hdcp1);
114 } else if (is_in_hdcp2_states(hdcp)) {
115 status = mod_hdcp_hdcp2_execution(hdcp, event_ctx, &input->hdcp2);
116 } else if (is_in_hdcp2_dp_states(hdcp)) {
117 status = mod_hdcp_hdcp2_dp_execution(hdcp,
118 event_ctx, &input->hdcp2);
119 } else {
120 event_ctx->unexpected_event = 1;
121 goto out;
122 }
123 out:
124 return status;
125 }
126
transition(struct mod_hdcp * hdcp,struct mod_hdcp_event_context * event_ctx,union mod_hdcp_transition_input * input,struct mod_hdcp_output * output)127 static enum mod_hdcp_status transition(struct mod_hdcp *hdcp,
128 struct mod_hdcp_event_context *event_ctx,
129 union mod_hdcp_transition_input *input,
130 struct mod_hdcp_output *output)
131 {
132 enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
133
134 if (event_ctx->unexpected_event)
135 goto out;
136
137 if (is_in_initialized_state(hdcp)) {
138 if (is_dp_hdcp(hdcp))
139 if (is_cp_desired_hdcp2(hdcp)) {
140 callback_in_ms(0, output);
141 set_state_id(hdcp, output, D2_A0_DETERMINE_RX_HDCP_CAPABLE);
142 } else if (is_cp_desired_hdcp1(hdcp)) {
143 callback_in_ms(0, output);
144 set_state_id(hdcp, output, D1_A0_DETERMINE_RX_HDCP_CAPABLE);
145 } else {
146 callback_in_ms(0, output);
147 set_state_id(hdcp, output, HDCP_CP_NOT_DESIRED);
148 set_auth_complete(hdcp, output);
149 }
150 else if (is_hdmi_dvi_sl_hdcp(hdcp))
151 if (is_cp_desired_hdcp2(hdcp)) {
152 callback_in_ms(0, output);
153 set_state_id(hdcp, output, H2_A0_KNOWN_HDCP2_CAPABLE_RX);
154 } else if (is_cp_desired_hdcp1(hdcp)) {
155 callback_in_ms(0, output);
156 set_state_id(hdcp, output, H1_A0_WAIT_FOR_ACTIVE_RX);
157 } else {
158 callback_in_ms(0, output);
159 set_state_id(hdcp, output, HDCP_CP_NOT_DESIRED);
160 set_auth_complete(hdcp, output);
161 }
162 else {
163 callback_in_ms(0, output);
164 set_state_id(hdcp, output, HDCP_CP_NOT_DESIRED);
165 set_auth_complete(hdcp, output);
166 }
167 } else if (is_in_cp_not_desired_state(hdcp)) {
168 increment_stay_counter(hdcp);
169 } else if (is_in_hdcp1_states(hdcp)) {
170 status = mod_hdcp_hdcp1_transition(hdcp,
171 event_ctx, &input->hdcp1, output);
172 } else if (is_in_hdcp1_dp_states(hdcp)) {
173 status = mod_hdcp_hdcp1_dp_transition(hdcp,
174 event_ctx, &input->hdcp1, output);
175 } else if (is_in_hdcp2_states(hdcp)) {
176 status = mod_hdcp_hdcp2_transition(hdcp,
177 event_ctx, &input->hdcp2, output);
178 } else if (is_in_hdcp2_dp_states(hdcp)) {
179 status = mod_hdcp_hdcp2_dp_transition(hdcp,
180 event_ctx, &input->hdcp2, output);
181 } else {
182 status = MOD_HDCP_STATUS_INVALID_STATE;
183 }
184 out:
185 return status;
186 }
187
reset_authentication(struct mod_hdcp * hdcp,struct mod_hdcp_output * output)188 static enum mod_hdcp_status reset_authentication(struct mod_hdcp *hdcp,
189 struct mod_hdcp_output *output)
190 {
191 enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
192
193 if (is_hdcp1(hdcp)) {
194 if (hdcp->auth.trans_input.hdcp1.create_session != UNKNOWN) {
195 /* TODO - update psp to unify create session failure
196 * recovery between hdcp1 and 2.
197 */
198 mod_hdcp_hdcp1_destroy_session(hdcp);
199
200 }
201
202 HDCP_TOP_RESET_AUTH_TRACE(hdcp);
203 memset(&hdcp->auth, 0, sizeof(struct mod_hdcp_authentication));
204 memset(&hdcp->state, 0, sizeof(struct mod_hdcp_state));
205 set_state_id(hdcp, output, HDCP_INITIALIZED);
206 } else if (is_hdcp2(hdcp)) {
207 if (hdcp->auth.trans_input.hdcp2.create_session == PASS) {
208 status = mod_hdcp_hdcp2_destroy_session(hdcp);
209 if (status != MOD_HDCP_STATUS_SUCCESS) {
210 output->callback_needed = 0;
211 output->watchdog_timer_needed = 0;
212 goto out;
213 }
214 }
215
216 HDCP_TOP_RESET_AUTH_TRACE(hdcp);
217 memset(&hdcp->auth, 0, sizeof(struct mod_hdcp_authentication));
218 memset(&hdcp->state, 0, sizeof(struct mod_hdcp_state));
219 set_state_id(hdcp, output, HDCP_INITIALIZED);
220 } else if (is_in_cp_not_desired_state(hdcp)) {
221 HDCP_TOP_RESET_AUTH_TRACE(hdcp);
222 memset(&hdcp->auth, 0, sizeof(struct mod_hdcp_authentication));
223 memset(&hdcp->state, 0, sizeof(struct mod_hdcp_state));
224 set_state_id(hdcp, output, HDCP_INITIALIZED);
225 }
226
227 out:
228 /* stop callback and watchdog requests from previous authentication*/
229 output->watchdog_timer_stop = 1;
230 output->callback_stop = 1;
231 return status;
232 }
233
reset_connection(struct mod_hdcp * hdcp,struct mod_hdcp_output * output)234 static enum mod_hdcp_status reset_connection(struct mod_hdcp *hdcp,
235 struct mod_hdcp_output *output)
236 {
237 enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
238
239 memset(output, 0, sizeof(struct mod_hdcp_output));
240
241 status = reset_authentication(hdcp, output);
242 if (status != MOD_HDCP_STATUS_SUCCESS)
243 goto out;
244
245 if (current_state(hdcp) != HDCP_UNINITIALIZED) {
246 HDCP_TOP_RESET_CONN_TRACE(hdcp);
247 set_state_id(hdcp, output, HDCP_UNINITIALIZED);
248 }
249 memset(&hdcp->connection, 0, sizeof(hdcp->connection));
250 out:
251 return status;
252 }
253
254 /*
255 * Implementation of functions in mod_hdcp.h
256 */
mod_hdcp_get_memory_size(void)257 size_t mod_hdcp_get_memory_size(void)
258 {
259 return sizeof(struct mod_hdcp);
260 }
261
mod_hdcp_setup(struct mod_hdcp * hdcp,struct mod_hdcp_config * config)262 enum mod_hdcp_status mod_hdcp_setup(struct mod_hdcp *hdcp,
263 struct mod_hdcp_config *config)
264 {
265 struct mod_hdcp_output output;
266 enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
267
268 memset(&output, 0, sizeof(output));
269 hdcp->config = *config;
270 HDCP_TOP_INTERFACE_TRACE(hdcp);
271 status = reset_connection(hdcp, &output);
272 if (status != MOD_HDCP_STATUS_SUCCESS)
273 push_error_status(hdcp, status);
274 return status;
275 }
276
mod_hdcp_teardown(struct mod_hdcp * hdcp)277 enum mod_hdcp_status mod_hdcp_teardown(struct mod_hdcp *hdcp)
278 {
279 enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
280 struct mod_hdcp_output output;
281
282 HDCP_TOP_INTERFACE_TRACE(hdcp);
283 memset(&output, 0, sizeof(output));
284 status = reset_connection(hdcp, &output);
285 if (status == MOD_HDCP_STATUS_SUCCESS)
286 memset(hdcp, 0, sizeof(struct mod_hdcp));
287 else
288 push_error_status(hdcp, status);
289 return status;
290 }
291
mod_hdcp_add_display(struct mod_hdcp * hdcp,struct mod_hdcp_link * link,struct mod_hdcp_display * display,struct mod_hdcp_output * output)292 enum mod_hdcp_status mod_hdcp_add_display(struct mod_hdcp *hdcp,
293 struct mod_hdcp_link *link, struct mod_hdcp_display *display,
294 struct mod_hdcp_output *output)
295 {
296 enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
297 struct mod_hdcp_display *display_container = NULL;
298
299 HDCP_TOP_INTERFACE_TRACE_WITH_INDEX(hdcp, display->index);
300 memset(output, 0, sizeof(struct mod_hdcp_output));
301
302 /* skip inactive display */
303 if (display->state != MOD_HDCP_DISPLAY_ACTIVE) {
304 status = MOD_HDCP_STATUS_SUCCESS;
305 goto out;
306 }
307
308 /* check existing display container */
309 if (get_active_display_at_index(hdcp, display->index)) {
310 status = MOD_HDCP_STATUS_SUCCESS;
311 goto out;
312 }
313
314 /* find an empty display container */
315 display_container = get_empty_display_container(hdcp);
316 if (!display_container) {
317 status = MOD_HDCP_STATUS_DISPLAY_OUT_OF_BOUND;
318 goto out;
319 }
320
321 /* reset existing authentication status */
322 status = reset_authentication(hdcp, output);
323 if (status != MOD_HDCP_STATUS_SUCCESS)
324 goto out;
325
326 /* reset retry counters */
327 reset_retry_counts(hdcp);
328
329 /* reset error trace */
330 memset(&hdcp->connection.trace, 0, sizeof(hdcp->connection.trace));
331
332 /* add display to connection */
333 hdcp->connection.link = *link;
334 *display_container = *display;
335 status = mod_hdcp_add_display_to_topology(hdcp, display_container);
336
337 if (status != MOD_HDCP_STATUS_SUCCESS)
338 goto out;
339
340 /* request authentication */
341 if (current_state(hdcp) != HDCP_INITIALIZED)
342 set_state_id(hdcp, output, HDCP_INITIALIZED);
343 callback_in_ms(hdcp->connection.link.adjust.auth_delay * 1000, output);
344 out:
345 if (status != MOD_HDCP_STATUS_SUCCESS)
346 push_error_status(hdcp, status);
347
348 return status;
349 }
350
mod_hdcp_remove_display(struct mod_hdcp * hdcp,uint8_t index,struct mod_hdcp_output * output)351 enum mod_hdcp_status mod_hdcp_remove_display(struct mod_hdcp *hdcp,
352 uint8_t index, struct mod_hdcp_output *output)
353 {
354 enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
355 struct mod_hdcp_display *display = NULL;
356
357 HDCP_TOP_INTERFACE_TRACE_WITH_INDEX(hdcp, index);
358 memset(output, 0, sizeof(struct mod_hdcp_output));
359
360 /* find display in connection */
361 display = get_active_display_at_index(hdcp, index);
362 if (!display) {
363 status = MOD_HDCP_STATUS_SUCCESS;
364 goto out;
365 }
366
367 /* stop current authentication */
368 status = reset_authentication(hdcp, output);
369 if (status != MOD_HDCP_STATUS_SUCCESS)
370 goto out;
371
372 /* clear retry counters */
373 reset_retry_counts(hdcp);
374
375 /* reset error trace */
376 memset(&hdcp->connection.trace, 0, sizeof(hdcp->connection.trace));
377
378 /* remove display */
379 status = mod_hdcp_remove_display_from_topology(hdcp, index);
380 if (status != MOD_HDCP_STATUS_SUCCESS)
381 goto out;
382 memset(display, 0, sizeof(struct mod_hdcp_display));
383
384 /* request authentication when connection is not reset */
385 if (current_state(hdcp) != HDCP_UNINITIALIZED)
386 callback_in_ms(hdcp->connection.link.adjust.auth_delay * 1000,
387 output);
388 out:
389 if (status != MOD_HDCP_STATUS_SUCCESS)
390 push_error_status(hdcp, status);
391 return status;
392 }
393
mod_hdcp_update_authentication(struct mod_hdcp * hdcp,uint8_t index,struct mod_hdcp_link_adjustment * link_adjust,struct mod_hdcp_display_adjustment * display_adjust,struct mod_hdcp_output * output)394 enum mod_hdcp_status mod_hdcp_update_authentication(struct mod_hdcp *hdcp,
395 uint8_t index,
396 struct mod_hdcp_link_adjustment *link_adjust,
397 struct mod_hdcp_display_adjustment *display_adjust,
398 struct mod_hdcp_output *output)
399 {
400 enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
401 struct mod_hdcp_display *display = NULL;
402
403 HDCP_TOP_INTERFACE_TRACE_WITH_INDEX(hdcp, index);
404 memset(output, 0, sizeof(struct mod_hdcp_output));
405
406 /* find display in connection */
407 display = get_active_display_at_index(hdcp, index);
408 if (!display) {
409 status = MOD_HDCP_STATUS_DISPLAY_NOT_FOUND;
410 goto out;
411 }
412
413 /* skip if no changes */
414 if (memcmp(link_adjust, &hdcp->connection.link.adjust,
415 sizeof(struct mod_hdcp_link_adjustment)) == 0 &&
416 memcmp(display_adjust, &display->adjust,
417 sizeof(struct mod_hdcp_display_adjustment)) == 0) {
418 status = MOD_HDCP_STATUS_SUCCESS;
419 goto out;
420 }
421
422 /* stop current authentication */
423 status = reset_authentication(hdcp, output);
424 if (status != MOD_HDCP_STATUS_SUCCESS)
425 goto out;
426
427 /* clear retry counters */
428 reset_retry_counts(hdcp);
429
430 /* reset error trace */
431 memset(&hdcp->connection.trace, 0, sizeof(hdcp->connection.trace));
432
433 /* set new adjustment */
434 hdcp->connection.link.adjust = *link_adjust;
435 display->adjust = *display_adjust;
436
437 /* request authentication when connection is not reset */
438 if (current_state(hdcp) != HDCP_UNINITIALIZED)
439 /* wait 100ms to debounce simultaneous updates for different indices */
440 callback_in_ms(100, output);
441
442 out:
443 if (status != MOD_HDCP_STATUS_SUCCESS)
444 push_error_status(hdcp, status);
445 return status;
446 }
447
mod_hdcp_query_display(struct mod_hdcp * hdcp,uint8_t index,struct mod_hdcp_display_query * query)448 enum mod_hdcp_status mod_hdcp_query_display(struct mod_hdcp *hdcp,
449 uint8_t index, struct mod_hdcp_display_query *query)
450 {
451 enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
452 struct mod_hdcp_display *display = NULL;
453
454 /* find display in connection */
455 display = get_active_display_at_index(hdcp, index);
456 if (!display) {
457 status = MOD_HDCP_STATUS_DISPLAY_NOT_FOUND;
458 goto out;
459 }
460
461 /* populate query */
462 query->link = &hdcp->connection.link;
463 query->display = display;
464 query->trace = &hdcp->connection.trace;
465 query->encryption_status = MOD_HDCP_ENCRYPTION_STATUS_HDCP_OFF;
466
467 if (is_display_encryption_enabled(display)) {
468 if (is_hdcp1(hdcp)) {
469 query->encryption_status = MOD_HDCP_ENCRYPTION_STATUS_HDCP1_ON;
470 } else if (is_hdcp2(hdcp)) {
471 if (query->link->adjust.hdcp2.force_type == MOD_HDCP_FORCE_TYPE_0)
472 query->encryption_status = MOD_HDCP_ENCRYPTION_STATUS_HDCP2_TYPE0_ON;
473 else if (query->link->adjust.hdcp2.force_type == MOD_HDCP_FORCE_TYPE_1)
474 query->encryption_status = MOD_HDCP_ENCRYPTION_STATUS_HDCP2_TYPE1_ON;
475 else
476 query->encryption_status = MOD_HDCP_ENCRYPTION_STATUS_HDCP2_ON;
477 }
478 } else {
479 query->encryption_status = MOD_HDCP_ENCRYPTION_STATUS_HDCP_OFF;
480 }
481
482 out:
483 return status;
484 }
485
mod_hdcp_reset_connection(struct mod_hdcp * hdcp,struct mod_hdcp_output * output)486 enum mod_hdcp_status mod_hdcp_reset_connection(struct mod_hdcp *hdcp,
487 struct mod_hdcp_output *output)
488 {
489 enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
490
491 HDCP_TOP_INTERFACE_TRACE(hdcp);
492 status = reset_connection(hdcp, output);
493 if (status != MOD_HDCP_STATUS_SUCCESS)
494 push_error_status(hdcp, status);
495
496 return status;
497 }
498
mod_hdcp_process_event(struct mod_hdcp * hdcp,enum mod_hdcp_event event,struct mod_hdcp_output * output)499 enum mod_hdcp_status mod_hdcp_process_event(struct mod_hdcp *hdcp,
500 enum mod_hdcp_event event, struct mod_hdcp_output *output)
501 {
502 enum mod_hdcp_status exec_status, trans_status, reset_status, status;
503 struct mod_hdcp_event_context event_ctx;
504
505 HDCP_EVENT_TRACE(hdcp, event);
506 memset(output, 0, sizeof(struct mod_hdcp_output));
507 memset(&event_ctx, 0, sizeof(struct mod_hdcp_event_context));
508 event_ctx.event = event;
509
510 /* execute and transition */
511 exec_status = execution(hdcp, &event_ctx, &hdcp->auth.trans_input);
512 trans_status = transition(
513 hdcp, &event_ctx, &hdcp->auth.trans_input, output);
514 if (trans_status == MOD_HDCP_STATUS_SUCCESS) {
515 status = MOD_HDCP_STATUS_SUCCESS;
516 } else if (exec_status == MOD_HDCP_STATUS_SUCCESS) {
517 status = MOD_HDCP_STATUS_INTERNAL_POLICY_FAILURE;
518 push_error_status(hdcp, status);
519 } else {
520 status = exec_status;
521 push_error_status(hdcp, status);
522 }
523
524 /* reset authentication if needed */
525 if (trans_status == MOD_HDCP_STATUS_RESET_NEEDED) {
526 mod_hdcp_log_ddc_trace(hdcp);
527 reset_status = reset_authentication(hdcp, output);
528 if (reset_status != MOD_HDCP_STATUS_SUCCESS)
529 push_error_status(hdcp, reset_status);
530 }
531
532 /* Clear CP_IRQ status if needed */
533 if (event_ctx.event == MOD_HDCP_EVENT_CPIRQ) {
534 status = mod_hdcp_clear_cp_irq_status(hdcp);
535 if (status != MOD_HDCP_STATUS_SUCCESS)
536 push_error_status(hdcp, status);
537 }
538
539 return status;
540 }
541
mod_hdcp_signal_type_to_operation_mode(enum signal_type signal)542 enum mod_hdcp_operation_mode mod_hdcp_signal_type_to_operation_mode(
543 enum signal_type signal)
544 {
545 enum mod_hdcp_operation_mode mode = MOD_HDCP_MODE_OFF;
546
547 switch (signal) {
548 case SIGNAL_TYPE_DVI_SINGLE_LINK:
549 case SIGNAL_TYPE_HDMI_TYPE_A:
550 mode = MOD_HDCP_MODE_DEFAULT;
551 break;
552 case SIGNAL_TYPE_EDP:
553 case SIGNAL_TYPE_DISPLAY_PORT:
554 case SIGNAL_TYPE_DISPLAY_PORT_MST:
555 mode = MOD_HDCP_MODE_DP;
556 break;
557 default:
558 break;
559 }
560
561 return mode;
562 }
563