modules/hdcp/amdgpu_hdcp2_transition.c

31 #include "hdcp.h"
33 enum mod_hdcp_status mod_hdcp_hdcp2_transition(struct mod_hdcp *hdcp,
39 	struct mod_hdcp_connection *conn = &hdcp->connection;
40 	struct mod_hdcp_link_adjustment *adjust = &hdcp->connection.link.adjust;
42 	switch (current_state(hdcp)) {
48 			set_state_id(hdcp, output, HDCP_INITIALIZED);
51 			set_state_id(hdcp, output, H2_A1_SEND_AKE_INIT);
66 		set_watchdog_in_ms(hdcp, 100, output);
68 		set_state_id(hdcp, output, H2_A1_VALIDATE_AKE_CERT);
84 				increment_stay_counter(hdcp);
99 			set_state_id(hdcp, output, H2_A1_SEND_STORED_KM);
102 			set_state_id(hdcp, output, H2_A1_SEND_NO_STORED_KM);
111 			set_watchdog_in_ms(hdcp, 2000, output);
113 			set_watchdog_in_ms(hdcp, 1000, output);
115 		set_state_id(hdcp, output, H2_A1_READ_H_PRIME);
126 				increment_stay_counter(hdcp);
133 		set_watchdog_in_ms(hdcp, 200, output);
135 		set_state_id(hdcp, output, H2_A1_READ_PAIRING_INFO_AND_VALIDATE_H_PRIME);
148 				increment_stay_counter(hdcp);
158 		set_state_id(hdcp, output, H2_A2_LOCALITY_CHECK);
165 		set_watchdog_in_ms(hdcp, 200, output);
167 		set_state_id(hdcp, output, H2_A1_VALIDATE_H_PRIME);
178 				increment_stay_counter(hdcp);
191 		set_state_id(hdcp, output, H2_A2_LOCALITY_CHECK);
194 		if (hdcp->state.stay_count > 10 ||
208 			increment_stay_counter(hdcp);
212 		set_state_id(hdcp, output, H2_A3_EXCHANGE_KS_AND_TEST_FOR_REPEATER);
221 			set_watchdog_in_ms(hdcp, 3000, output);
223 			set_state_id(hdcp, output, H2_A6_WAIT_FOR_RX_ID_LIST);
229 			set_state_id(hdcp, output, H2_ENABLE_ENCRYPTION);
236 			 * 1A-07: restart hdcp on REAUTH_REQ
237 			 * 1B-08: restart hdcp on REAUTH_REQ
243 			set_state_id(hdcp, output, H2_A78_VERIFY_RX_ID_LIST_AND_SEND_ACK);
250 		set_state_id(hdcp, output, H2_A5_AUTHENTICATED);
251 		HDCP_FULL_DDC_TRACE(hdcp);
260 			set_state_id(hdcp, output, H2_A78_VERIFY_RX_ID_LIST_AND_SEND_ACK);
264 		increment_stay_counter(hdcp);
282 				increment_stay_counter(hdcp);
287 		set_state_id(hdcp, output, H2_A78_VERIFY_RX_ID_LIST_AND_SEND_ACK);
306 		set_state_id(hdcp, output, H2_A9_SEND_STREAM_MANAGEMENT);
315 			set_state_id(hdcp, output, H2_A78_VERIFY_RX_ID_LIST_AND_SEND_ACK);
322 		set_watchdog_in_ms(hdcp, 100, output);
324 		set_state_id(hdcp, output, H2_A9_VALIDATE_STREAM_READY);
333 			set_state_id(hdcp, output, H2_A78_VERIFY_RX_ID_LIST_AND_SEND_ACK);
340 				hdcp->auth.count.stream_management_retry_count++;
342 				set_state_id(hdcp, output, H2_A9_SEND_STREAM_MANAGEMENT);
345 				increment_stay_counter(hdcp);
354 			if (hdcp->auth.count.stream_management_retry_count > 10) {
357 				hdcp->auth.count.stream_management_retry_count++;
359 				set_state_id(hdcp, output, H2_A9_SEND_STREAM_MANAGEMENT);
364 		set_state_id(hdcp, output, H2_ENABLE_ENCRYPTION);
375 enum mod_hdcp_status mod_hdcp_hdcp2_dp_transition(struct mod_hdcp *hdcp,
381 	struct mod_hdcp_connection *conn = &hdcp->connection;
382 	struct mod_hdcp_link_adjustment *adjust = &hdcp->connection.link.adjust;
384 	switch (current_state(hdcp)) {
390 			set_state_id(hdcp, output, HDCP_INITIALIZED);
393 			set_state_id(hdcp, output, D2_A1_SEND_AKE_INIT);
410 		set_state_id(hdcp, output, D2_A1_VALIDATE_AKE_CERT);
425 			set_state_id(hdcp, output, D2_A1_SEND_STORED_KM);
428 			set_state_id(hdcp, output, D2_A1_SEND_NO_STORED_KM);
437 			set_watchdog_in_ms(hdcp, 2000, output);
439 			set_watchdog_in_ms(hdcp, 1000, output);
440 		set_state_id(hdcp, output, D2_A1_READ_H_PRIME);
449 				increment_stay_counter(hdcp);
455 		set_watchdog_in_ms(hdcp, 200, output);
456 		set_state_id(hdcp, output, D2_A1_READ_PAIRING_INFO_AND_VALIDATE_H_PRIME);
468 				increment_stay_counter(hdcp);
477 		set_state_id(hdcp, output, D2_A2_LOCALITY_CHECK);
484 		set_watchdog_in_ms(hdcp, 200, output);
485 		set_state_id(hdcp, output, D2_A1_VALIDATE_H_PRIME);
494 				increment_stay_counter(hdcp);
506 		set_state_id(hdcp, output, D2_A2_LOCALITY_CHECK);
509 		if (hdcp->state.stay_count > 10 ||
518 			increment_stay_counter(hdcp);
522 		set_state_id(hdcp, output, D2_A34_EXCHANGE_KS_AND_TEST_FOR_REPEATER);
531 			set_watchdog_in_ms(hdcp, 3000, output);
532 			set_state_id(hdcp, output, D2_A6_WAIT_FOR_RX_ID_LIST);
535 			set_state_id(hdcp, output, D2_SEND_CONTENT_STREAM_TYPE);
547 		set_state_id(hdcp, output, D2_ENABLE_ENCRYPTION);
554 			 * 1A-07: restart hdcp on REAUTH_REQ
555 			 * 1B-08: restart hdcp on REAUTH_REQ
561 			set_state_id(hdcp, output, D2_A78_VERIFY_RX_ID_LIST_AND_SEND_ACK);
564 				(is_dp_mst_hdcp(hdcp) && input->stream_encryption_dp != PASS)) {
568 		set_state_id(hdcp, output, D2_A5_AUTHENTICATED);
569 		HDCP_FULL_DDC_TRACE(hdcp);
577 			if (hdcp->connection.hdcp2_retry_count >= 1)
583 			set_state_id(hdcp, output, D2_A78_VERIFY_RX_ID_LIST_AND_SEND_ACK);
586 		increment_stay_counter(hdcp);
599 				increment_stay_counter(hdcp);
603 		set_state_id(hdcp, output, D2_A78_VERIFY_RX_ID_LIST_AND_SEND_ACK);
624 		set_state_id(hdcp, output, D2_A9_SEND_STREAM_MANAGEMENT);
634 			set_state_id(hdcp, output, D2_A78_VERIFY_RX_ID_LIST_AND_SEND_ACK);
641 				increment_stay_counter(hdcp);
645 		set_state_id(hdcp, output, D2_A9_VALIDATE_STREAM_READY);
655 			set_state_id(hdcp, output, D2_A78_VERIFY_RX_ID_LIST_AND_SEND_ACK);
664 			if (hdcp->auth.count.stream_management_retry_count > 10) {
667 				hdcp->auth.count.stream_management_retry_count++;
669 				set_state_id(hdcp, output, D2_A9_SEND_STREAM_MANAGEMENT);
671 				increment_stay_counter(hdcp);
676 		set_state_id(hdcp, output, D2_ENABLE_ENCRYPTION);