msm/hdmi/hdmi_hdcp.c

21 /* QFPROM Registers for HDMI/HDCP */
217 	DBG("hdcp irq %x", hdcp_int_status);  in msm_hdmi_hdcp_irq()
296 		 * Indicates that the last HDCP HW DDC transfer failed.  in msm_reset_hdcp_ddc_failures()
297 		 * This occurs when a transfer is attempted with HDCP DDC  in msm_reset_hdcp_ddc_failures()
316 			pr_info("%s: Unable to clear HDCP DDC Failure\n",  in msm_reset_hdcp_ddc_failures()
319 		/* Re-Enable HDCP DDC */  in msm_reset_hdcp_ddc_failures()
404 	DBG("HDCP REAUTH WORK");  in msm_hdmi_hdcp_reauth_work()
407 	 * This is needed to reset the HDCP cipher engine so that when we  in msm_hdmi_hdcp_reauth_work()
416 	/* Disable HDCP interrupts */  in msm_hdmi_hdcp_reauth_work()
429 	/* Disable encryption and disable the HDCP block */  in msm_hdmi_hdcp_reauth_work()
486 	 * Write AKSV read from QFPROM to the HDCP registers.  in msm_hdmi_hdcp_auth_prepare()
487 	 * This step is needed for HDCP authentication and must be  in msm_hdmi_hdcp_auth_prepare()
488 	 * written before enabling HDCP.  in msm_hdmi_hdcp_auth_prepare()
494 	 * HDCP setup prior to enabling HDCP_CTRL.  in msm_hdmi_hdcp_auth_prepare()
509 	 * enabling HDCP cipher  in msm_hdmi_hdcp_auth_prepare()
514 	 * Enable HDCP  in msm_hdmi_hdcp_auth_prepare()
522 	 * likely be cleared now after enabling HDCP cipher  in msm_hdmi_hdcp_auth_prepare()
525 	DBG("After enabling HDCP Link0_Status=0x%08x", link0_status);  in msm_hdmi_hdcp_auth_prepare()
529 		DBG("An not ready after enabling HDCP");  in msm_hdmi_hdcp_auth_prepare()
531 	/* Clear any DDC failures from previous tries before enable HDCP*/  in msm_hdmi_hdcp_auth_prepare()
543 	DBG("hdcp auth failed, queue reauth work");  in msm_hdmi_hdcp_auth_fail()
583  * hdcp authenticating part 1
586  * Write BCAPS and AKSV into HDCP engine
588  * Read BKSV from sink and write into HDCP engine
598 	/* Wait for HDCP keys to be checked and validated */  in msm_hdmi_hdcp_wait_key_an_ready()
717 	/* Write BKSV read from sink to HDCP registers */  in msm_hdmi_hdcp_recv_bksv()
765 	/* Read BCAPS and send to HDCP engine */  in msm_hdmi_hdcp_auth_part1_key_exchange()
785 	/* Read BKSV and send to HDCP engine*/  in msm_hdmi_hdcp_auth_part1_key_exchange()
792 	/* Enable HDCP interrupts and ack/clear any stale interrupts */  in msm_hdmi_hdcp_auth_part1_key_exchange()
805 /* read R0' from sink and pass it to HDCP engine */
813 	 * HDCP Compliance Test case 1A-01:  in msm_hdmi_hdcp_auth_part1_recv_r0()
828 	/* Write R0' to HDCP registers and check to see if it is a match */  in msm_hdmi_hdcp_auth_part1_recv_r0()
842 	/* wait for hdcp irq, 10 sec should be long enough */  in msm_hdmi_hdcp_auth_part1_verify_r0()
855 	/* Enable HDCP Encryption */  in msm_hdmi_hdcp_auth_part1_verify_r0()
899 	 * HDCP Compliance 1B-05:  in msm_hdmi_hdcp_recv_check_bstatus()
911 	 * HDCP Compliance 1B-06:  in msm_hdmi_hdcp_recv_check_bstatus()
941 	 * Wait until READY bit is set in BCAPS, as per HDCP specifications  in msm_hdmi_hdcp_auth_part2_wait_ksv_fifo_ready()
973 	/* Write BSTATUS and BCAPS to HDCP registers */  in msm_hdmi_hdcp_auth_part2_wait_ksv_fifo_ready()
986  * hdcp authenticating part 2: 2nd
988  * transfer V' from sink to HDCP engine
1067 	 * from HDCP Repeaters.  in msm_hdmi_hdcp_auth_part2_recv_ksv_fifo()
1070 	 * All bytes read as 0x00 for HDCP Receivers that are not  in msm_hdmi_hdcp_auth_part2_recv_ksv_fifo()
1071 	 * HDCP Repeaters (REPEATER == 0).  in msm_hdmi_hdcp_auth_part2_recv_ksv_fifo()
1177 /* write ksv fifo into HDCP engine */
1222 				pr_err("%s: HDCP V Match timedout", __func__);  in msm_hdmi_hdcp_auth_part2_check_v_match()
1246 	/* HDCP PartI */  in msm_hdmi_hdcp_auth_work()
1268 	/* HDCP PartII */  in msm_hdmi_hdcp_auth_work()
1293 		pr_info("%s: hdcp authentication canceled\n", __func__);  in msm_hdmi_hdcp_auth_work()
1295 		pr_info("%s: hdcp is not supported\n", __func__);  in msm_hdmi_hdcp_auth_work()
1297 		pr_err("%s: hdcp authentication failed\n", __func__);  in msm_hdmi_hdcp_auth_work()
1337 		DBG("hdcp inactive or no aksv. returning");  in msm_hdmi_hdcp_off()
1343 	 * This is needed to reset the HDCP cipher engine so that when we  in msm_hdmi_hdcp_off()
1353 	 * Disable HDCP interrupts.  in msm_hdmi_hdcp_off()
1355 	 * reauth works will know that the HDCP session has been turned off.  in msm_hdmi_hdcp_off()
1374 	/* Disable encryption and disable the HDCP block */  in msm_hdmi_hdcp_off()
1390 	DBG("HDCP: Off");  in msm_hdmi_hdcp_off()
1398 		pr_err("%s: HDCP is not supported without qfprom\n",  in msm_hdmi_hdcp_init()