665 lines
20 KiB
C
665 lines
20 KiB
C
/*
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* Copyright 2019 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: AMD
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*
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*/
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#include "hdcp.h"
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#define MIN(a, b) ((a) < (b) ? (a) : (b))
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#define HDCP_I2C_ADDR 0x3a /* 0x74 >> 1*/
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#define KSV_READ_SIZE 0xf /* 0x6803b - 0x6802c */
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#define HDCP_MAX_AUX_TRANSACTION_SIZE 16
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#define DP_CP_IRQ (1 << 2)
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enum mod_hdcp_ddc_message_id {
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MOD_HDCP_MESSAGE_ID_INVALID = -1,
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/* HDCP 1.4 */
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MOD_HDCP_MESSAGE_ID_READ_BKSV = 0,
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MOD_HDCP_MESSAGE_ID_READ_RI_R0,
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MOD_HDCP_MESSAGE_ID_WRITE_AKSV,
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MOD_HDCP_MESSAGE_ID_WRITE_AINFO,
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MOD_HDCP_MESSAGE_ID_WRITE_AN,
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MOD_HDCP_MESSAGE_ID_READ_VH_X,
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MOD_HDCP_MESSAGE_ID_READ_VH_0,
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MOD_HDCP_MESSAGE_ID_READ_VH_1,
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MOD_HDCP_MESSAGE_ID_READ_VH_2,
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MOD_HDCP_MESSAGE_ID_READ_VH_3,
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MOD_HDCP_MESSAGE_ID_READ_VH_4,
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MOD_HDCP_MESSAGE_ID_READ_BCAPS,
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MOD_HDCP_MESSAGE_ID_READ_BSTATUS,
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MOD_HDCP_MESSAGE_ID_READ_KSV_FIFO,
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MOD_HDCP_MESSAGE_ID_READ_BINFO,
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/* HDCP 2.2 */
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MOD_HDCP_MESSAGE_ID_HDCP2VERSION,
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MOD_HDCP_MESSAGE_ID_RX_CAPS,
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MOD_HDCP_MESSAGE_ID_WRITE_AKE_INIT,
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MOD_HDCP_MESSAGE_ID_READ_AKE_SEND_CERT,
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MOD_HDCP_MESSAGE_ID_WRITE_AKE_NO_STORED_KM,
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MOD_HDCP_MESSAGE_ID_WRITE_AKE_STORED_KM,
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MOD_HDCP_MESSAGE_ID_READ_AKE_SEND_H_PRIME,
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MOD_HDCP_MESSAGE_ID_READ_AKE_SEND_PAIRING_INFO,
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MOD_HDCP_MESSAGE_ID_WRITE_LC_INIT,
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MOD_HDCP_MESSAGE_ID_READ_LC_SEND_L_PRIME,
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MOD_HDCP_MESSAGE_ID_WRITE_SKE_SEND_EKS,
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MOD_HDCP_MESSAGE_ID_READ_REPEATER_AUTH_SEND_RECEIVERID_LIST,
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MOD_HDCP_MESSAGE_ID_READ_REPEATER_AUTH_SEND_RECEIVERID_LIST_PART2,
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MOD_HDCP_MESSAGE_ID_WRITE_REPEATER_AUTH_SEND_ACK,
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MOD_HDCP_MESSAGE_ID_WRITE_REPEATER_AUTH_STREAM_MANAGE,
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MOD_HDCP_MESSAGE_ID_READ_REPEATER_AUTH_STREAM_READY,
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MOD_HDCP_MESSAGE_ID_READ_RXSTATUS,
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MOD_HDCP_MESSAGE_ID_WRITE_CONTENT_STREAM_TYPE,
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MOD_HDCP_MESSAGE_ID_MAX
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};
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static const uint8_t hdcp_i2c_offsets[] = {
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[MOD_HDCP_MESSAGE_ID_READ_BKSV] = 0x0,
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[MOD_HDCP_MESSAGE_ID_READ_RI_R0] = 0x8,
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[MOD_HDCP_MESSAGE_ID_WRITE_AKSV] = 0x10,
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[MOD_HDCP_MESSAGE_ID_WRITE_AINFO] = 0x15,
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[MOD_HDCP_MESSAGE_ID_WRITE_AN] = 0x18,
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[MOD_HDCP_MESSAGE_ID_READ_VH_X] = 0x20,
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[MOD_HDCP_MESSAGE_ID_READ_VH_0] = 0x20,
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[MOD_HDCP_MESSAGE_ID_READ_VH_1] = 0x24,
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[MOD_HDCP_MESSAGE_ID_READ_VH_2] = 0x28,
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[MOD_HDCP_MESSAGE_ID_READ_VH_3] = 0x2C,
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[MOD_HDCP_MESSAGE_ID_READ_VH_4] = 0x30,
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[MOD_HDCP_MESSAGE_ID_READ_BCAPS] = 0x40,
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[MOD_HDCP_MESSAGE_ID_READ_BSTATUS] = 0x41,
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[MOD_HDCP_MESSAGE_ID_READ_KSV_FIFO] = 0x43,
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[MOD_HDCP_MESSAGE_ID_READ_BINFO] = 0xFF,
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[MOD_HDCP_MESSAGE_ID_HDCP2VERSION] = 0x50,
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[MOD_HDCP_MESSAGE_ID_WRITE_AKE_INIT] = 0x60,
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[MOD_HDCP_MESSAGE_ID_READ_AKE_SEND_CERT] = 0x80,
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[MOD_HDCP_MESSAGE_ID_WRITE_AKE_NO_STORED_KM] = 0x60,
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[MOD_HDCP_MESSAGE_ID_WRITE_AKE_STORED_KM] = 0x60,
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[MOD_HDCP_MESSAGE_ID_READ_AKE_SEND_H_PRIME] = 0x80,
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[MOD_HDCP_MESSAGE_ID_READ_AKE_SEND_PAIRING_INFO] = 0x80,
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[MOD_HDCP_MESSAGE_ID_WRITE_LC_INIT] = 0x60,
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[MOD_HDCP_MESSAGE_ID_READ_LC_SEND_L_PRIME] = 0x80,
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[MOD_HDCP_MESSAGE_ID_WRITE_SKE_SEND_EKS] = 0x60,
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[MOD_HDCP_MESSAGE_ID_READ_REPEATER_AUTH_SEND_RECEIVERID_LIST] = 0x80,
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[MOD_HDCP_MESSAGE_ID_READ_REPEATER_AUTH_SEND_RECEIVERID_LIST_PART2] = 0x80,
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[MOD_HDCP_MESSAGE_ID_WRITE_REPEATER_AUTH_SEND_ACK] = 0x60,
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[MOD_HDCP_MESSAGE_ID_WRITE_REPEATER_AUTH_STREAM_MANAGE] = 0x60,
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[MOD_HDCP_MESSAGE_ID_READ_REPEATER_AUTH_STREAM_READY] = 0x80,
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[MOD_HDCP_MESSAGE_ID_READ_RXSTATUS] = 0x70,
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[MOD_HDCP_MESSAGE_ID_WRITE_CONTENT_STREAM_TYPE] = 0x0
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};
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static const uint32_t hdcp_dpcd_addrs[] = {
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[MOD_HDCP_MESSAGE_ID_READ_BKSV] = 0x68000,
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[MOD_HDCP_MESSAGE_ID_READ_RI_R0] = 0x68005,
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[MOD_HDCP_MESSAGE_ID_WRITE_AKSV] = 0x68007,
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[MOD_HDCP_MESSAGE_ID_WRITE_AINFO] = 0x6803B,
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[MOD_HDCP_MESSAGE_ID_WRITE_AN] = 0x6800c,
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[MOD_HDCP_MESSAGE_ID_READ_VH_X] = 0x68014,
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[MOD_HDCP_MESSAGE_ID_READ_VH_0] = 0x68014,
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[MOD_HDCP_MESSAGE_ID_READ_VH_1] = 0x68018,
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[MOD_HDCP_MESSAGE_ID_READ_VH_2] = 0x6801c,
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[MOD_HDCP_MESSAGE_ID_READ_VH_3] = 0x68020,
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[MOD_HDCP_MESSAGE_ID_READ_VH_4] = 0x68024,
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[MOD_HDCP_MESSAGE_ID_READ_BCAPS] = 0x68028,
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[MOD_HDCP_MESSAGE_ID_READ_BSTATUS] = 0x68029,
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[MOD_HDCP_MESSAGE_ID_READ_KSV_FIFO] = 0x6802c,
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[MOD_HDCP_MESSAGE_ID_READ_BINFO] = 0x6802a,
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[MOD_HDCP_MESSAGE_ID_RX_CAPS] = 0x6921d,
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[MOD_HDCP_MESSAGE_ID_WRITE_AKE_INIT] = 0x69000,
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[MOD_HDCP_MESSAGE_ID_READ_AKE_SEND_CERT] = 0x6900b,
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[MOD_HDCP_MESSAGE_ID_WRITE_AKE_NO_STORED_KM] = 0x69220,
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[MOD_HDCP_MESSAGE_ID_WRITE_AKE_STORED_KM] = 0x692a0,
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[MOD_HDCP_MESSAGE_ID_READ_AKE_SEND_H_PRIME] = 0x692c0,
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[MOD_HDCP_MESSAGE_ID_READ_AKE_SEND_PAIRING_INFO] = 0x692e0,
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[MOD_HDCP_MESSAGE_ID_WRITE_LC_INIT] = 0x692f0,
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[MOD_HDCP_MESSAGE_ID_READ_LC_SEND_L_PRIME] = 0x692f8,
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[MOD_HDCP_MESSAGE_ID_WRITE_SKE_SEND_EKS] = 0x69318,
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[MOD_HDCP_MESSAGE_ID_READ_REPEATER_AUTH_SEND_RECEIVERID_LIST] = 0x69330,
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[MOD_HDCP_MESSAGE_ID_READ_REPEATER_AUTH_SEND_RECEIVERID_LIST_PART2] = 0x69340,
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[MOD_HDCP_MESSAGE_ID_WRITE_REPEATER_AUTH_SEND_ACK] = 0x693e0,
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[MOD_HDCP_MESSAGE_ID_WRITE_REPEATER_AUTH_STREAM_MANAGE] = 0x693f0,
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[MOD_HDCP_MESSAGE_ID_READ_REPEATER_AUTH_STREAM_READY] = 0x69473,
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[MOD_HDCP_MESSAGE_ID_READ_RXSTATUS] = 0x69493,
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[MOD_HDCP_MESSAGE_ID_WRITE_CONTENT_STREAM_TYPE] = 0x69494
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};
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static enum mod_hdcp_status read(struct mod_hdcp *hdcp,
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enum mod_hdcp_ddc_message_id msg_id,
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uint8_t *buf,
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uint32_t buf_len)
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{
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bool success = true;
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uint32_t cur_size = 0;
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uint32_t data_offset = 0;
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if (is_dp_hdcp(hdcp)) {
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while (buf_len > 0) {
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cur_size = MIN(buf_len, HDCP_MAX_AUX_TRANSACTION_SIZE);
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success = hdcp->config.ddc.funcs.read_dpcd(hdcp->config.ddc.handle,
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hdcp_dpcd_addrs[msg_id] + data_offset,
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buf + data_offset,
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cur_size);
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if (!success)
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break;
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buf_len -= cur_size;
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data_offset += cur_size;
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}
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} else {
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success = hdcp->config.ddc.funcs.read_i2c(
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hdcp->config.ddc.handle,
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HDCP_I2C_ADDR,
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hdcp_i2c_offsets[msg_id],
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buf,
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(uint32_t)buf_len);
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}
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return success ? MOD_HDCP_STATUS_SUCCESS : MOD_HDCP_STATUS_DDC_FAILURE;
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}
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static enum mod_hdcp_status read_repeatedly(struct mod_hdcp *hdcp,
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enum mod_hdcp_ddc_message_id msg_id,
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uint8_t *buf,
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uint32_t buf_len,
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uint8_t read_size)
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{
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enum mod_hdcp_status status = MOD_HDCP_STATUS_DDC_FAILURE;
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uint32_t cur_size = 0;
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uint32_t data_offset = 0;
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while (buf_len > 0) {
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cur_size = MIN(buf_len, read_size);
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status = read(hdcp, msg_id, buf + data_offset, cur_size);
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if (status != MOD_HDCP_STATUS_SUCCESS)
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break;
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buf_len -= cur_size;
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data_offset += cur_size;
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}
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return status;
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}
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static enum mod_hdcp_status write(struct mod_hdcp *hdcp,
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enum mod_hdcp_ddc_message_id msg_id,
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uint8_t *buf,
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uint32_t buf_len)
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{
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bool success = true;
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uint32_t cur_size = 0;
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uint32_t data_offset = 0;
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if (is_dp_hdcp(hdcp)) {
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while (buf_len > 0) {
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cur_size = MIN(buf_len, HDCP_MAX_AUX_TRANSACTION_SIZE);
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success = hdcp->config.ddc.funcs.write_dpcd(
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hdcp->config.ddc.handle,
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hdcp_dpcd_addrs[msg_id] + data_offset,
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buf + data_offset,
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cur_size);
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if (!success)
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break;
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buf_len -= cur_size;
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data_offset += cur_size;
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}
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} else {
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hdcp->buf[0] = hdcp_i2c_offsets[msg_id];
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memmove(&hdcp->buf[1], buf, buf_len);
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success = hdcp->config.ddc.funcs.write_i2c(
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hdcp->config.ddc.handle,
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HDCP_I2C_ADDR,
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hdcp->buf,
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(uint32_t)(buf_len+1));
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}
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return success ? MOD_HDCP_STATUS_SUCCESS : MOD_HDCP_STATUS_DDC_FAILURE;
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}
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enum mod_hdcp_status mod_hdcp_read_bksv(struct mod_hdcp *hdcp)
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{
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return read(hdcp, MOD_HDCP_MESSAGE_ID_READ_BKSV,
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hdcp->auth.msg.hdcp1.bksv,
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sizeof(hdcp->auth.msg.hdcp1.bksv));
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}
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enum mod_hdcp_status mod_hdcp_read_bcaps(struct mod_hdcp *hdcp)
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{
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return read(hdcp, MOD_HDCP_MESSAGE_ID_READ_BCAPS,
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&hdcp->auth.msg.hdcp1.bcaps,
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sizeof(hdcp->auth.msg.hdcp1.bcaps));
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}
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enum mod_hdcp_status mod_hdcp_read_bstatus(struct mod_hdcp *hdcp)
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{
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enum mod_hdcp_status status;
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if (is_dp_hdcp(hdcp))
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status = read(hdcp, MOD_HDCP_MESSAGE_ID_READ_BSTATUS,
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(uint8_t *)&hdcp->auth.msg.hdcp1.bstatus,
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1);
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else
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status = read(hdcp, MOD_HDCP_MESSAGE_ID_READ_BSTATUS,
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(uint8_t *)&hdcp->auth.msg.hdcp1.bstatus,
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sizeof(hdcp->auth.msg.hdcp1.bstatus));
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return status;
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}
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enum mod_hdcp_status mod_hdcp_read_r0p(struct mod_hdcp *hdcp)
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{
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return read(hdcp, MOD_HDCP_MESSAGE_ID_READ_RI_R0,
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(uint8_t *)&hdcp->auth.msg.hdcp1.r0p,
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sizeof(hdcp->auth.msg.hdcp1.r0p));
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}
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/* special case, reading repeatedly at the same address, don't use read() */
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enum mod_hdcp_status mod_hdcp_read_ksvlist(struct mod_hdcp *hdcp)
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{
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enum mod_hdcp_status status;
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if (is_dp_hdcp(hdcp))
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status = read_repeatedly(hdcp, MOD_HDCP_MESSAGE_ID_READ_KSV_FIFO,
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hdcp->auth.msg.hdcp1.ksvlist,
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hdcp->auth.msg.hdcp1.ksvlist_size,
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KSV_READ_SIZE);
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else
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status = read(hdcp, MOD_HDCP_MESSAGE_ID_READ_KSV_FIFO,
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(uint8_t *)&hdcp->auth.msg.hdcp1.ksvlist,
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hdcp->auth.msg.hdcp1.ksvlist_size);
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return status;
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}
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enum mod_hdcp_status mod_hdcp_read_vp(struct mod_hdcp *hdcp)
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{
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enum mod_hdcp_status status;
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status = read(hdcp, MOD_HDCP_MESSAGE_ID_READ_VH_0,
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&hdcp->auth.msg.hdcp1.vp[0], 4);
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if (status != MOD_HDCP_STATUS_SUCCESS)
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goto out;
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status = read(hdcp, MOD_HDCP_MESSAGE_ID_READ_VH_1,
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&hdcp->auth.msg.hdcp1.vp[4], 4);
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if (status != MOD_HDCP_STATUS_SUCCESS)
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goto out;
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status = read(hdcp, MOD_HDCP_MESSAGE_ID_READ_VH_2,
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&hdcp->auth.msg.hdcp1.vp[8], 4);
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if (status != MOD_HDCP_STATUS_SUCCESS)
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goto out;
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status = read(hdcp, MOD_HDCP_MESSAGE_ID_READ_VH_3,
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&hdcp->auth.msg.hdcp1.vp[12], 4);
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if (status != MOD_HDCP_STATUS_SUCCESS)
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goto out;
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status = read(hdcp, MOD_HDCP_MESSAGE_ID_READ_VH_4,
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&hdcp->auth.msg.hdcp1.vp[16], 4);
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out:
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return status;
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}
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enum mod_hdcp_status mod_hdcp_read_binfo(struct mod_hdcp *hdcp)
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{
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enum mod_hdcp_status status;
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if (is_dp_hdcp(hdcp))
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status = read(hdcp, MOD_HDCP_MESSAGE_ID_READ_BINFO,
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(uint8_t *)&hdcp->auth.msg.hdcp1.binfo_dp,
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sizeof(hdcp->auth.msg.hdcp1.binfo_dp));
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else
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status = MOD_HDCP_STATUS_INVALID_OPERATION;
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return status;
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}
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enum mod_hdcp_status mod_hdcp_write_aksv(struct mod_hdcp *hdcp)
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{
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return write(hdcp, MOD_HDCP_MESSAGE_ID_WRITE_AKSV,
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hdcp->auth.msg.hdcp1.aksv,
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sizeof(hdcp->auth.msg.hdcp1.aksv));
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}
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enum mod_hdcp_status mod_hdcp_write_ainfo(struct mod_hdcp *hdcp)
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{
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return write(hdcp, MOD_HDCP_MESSAGE_ID_WRITE_AINFO,
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&hdcp->auth.msg.hdcp1.ainfo,
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sizeof(hdcp->auth.msg.hdcp1.ainfo));
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}
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enum mod_hdcp_status mod_hdcp_write_an(struct mod_hdcp *hdcp)
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{
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return write(hdcp, MOD_HDCP_MESSAGE_ID_WRITE_AN,
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hdcp->auth.msg.hdcp1.an,
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sizeof(hdcp->auth.msg.hdcp1.an));
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}
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enum mod_hdcp_status mod_hdcp_read_hdcp2version(struct mod_hdcp *hdcp)
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{
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enum mod_hdcp_status status;
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if (is_dp_hdcp(hdcp))
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status = MOD_HDCP_STATUS_INVALID_OPERATION;
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else
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status = read(hdcp, MOD_HDCP_MESSAGE_ID_HDCP2VERSION,
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&hdcp->auth.msg.hdcp2.hdcp2version_hdmi,
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sizeof(hdcp->auth.msg.hdcp2.hdcp2version_hdmi));
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return status;
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}
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enum mod_hdcp_status mod_hdcp_read_rxcaps(struct mod_hdcp *hdcp)
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{
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enum mod_hdcp_status status;
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if (!is_dp_hdcp(hdcp))
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status = MOD_HDCP_STATUS_INVALID_OPERATION;
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else
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status = read(hdcp, MOD_HDCP_MESSAGE_ID_RX_CAPS,
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hdcp->auth.msg.hdcp2.rxcaps_dp,
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sizeof(hdcp->auth.msg.hdcp2.rxcaps_dp));
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return status;
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}
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enum mod_hdcp_status mod_hdcp_read_rxstatus(struct mod_hdcp *hdcp)
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{
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enum mod_hdcp_status status;
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if (is_dp_hdcp(hdcp)) {
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status = read(hdcp, MOD_HDCP_MESSAGE_ID_READ_RXSTATUS,
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&hdcp->auth.msg.hdcp2.rxstatus_dp,
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1);
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} else {
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status = read(hdcp, MOD_HDCP_MESSAGE_ID_READ_RXSTATUS,
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(uint8_t *)&hdcp->auth.msg.hdcp2.rxstatus,
|
|
sizeof(hdcp->auth.msg.hdcp2.rxstatus));
|
|
}
|
|
return status;
|
|
}
|
|
|
|
enum mod_hdcp_status mod_hdcp_read_ake_cert(struct mod_hdcp *hdcp)
|
|
{
|
|
enum mod_hdcp_status status;
|
|
|
|
if (is_dp_hdcp(hdcp)) {
|
|
hdcp->auth.msg.hdcp2.ake_cert[0] = HDCP_2_2_AKE_SEND_CERT;
|
|
status = read(hdcp, MOD_HDCP_MESSAGE_ID_READ_AKE_SEND_CERT,
|
|
hdcp->auth.msg.hdcp2.ake_cert+1,
|
|
sizeof(hdcp->auth.msg.hdcp2.ake_cert)-1);
|
|
|
|
} else {
|
|
status = read(hdcp, MOD_HDCP_MESSAGE_ID_READ_AKE_SEND_CERT,
|
|
hdcp->auth.msg.hdcp2.ake_cert,
|
|
sizeof(hdcp->auth.msg.hdcp2.ake_cert));
|
|
}
|
|
return status;
|
|
}
|
|
|
|
enum mod_hdcp_status mod_hdcp_read_h_prime(struct mod_hdcp *hdcp)
|
|
{
|
|
enum mod_hdcp_status status;
|
|
|
|
if (is_dp_hdcp(hdcp)) {
|
|
hdcp->auth.msg.hdcp2.ake_h_prime[0] = HDCP_2_2_AKE_SEND_HPRIME;
|
|
status = read(hdcp, MOD_HDCP_MESSAGE_ID_READ_AKE_SEND_H_PRIME,
|
|
hdcp->auth.msg.hdcp2.ake_h_prime+1,
|
|
sizeof(hdcp->auth.msg.hdcp2.ake_h_prime)-1);
|
|
|
|
} else {
|
|
status = read(hdcp, MOD_HDCP_MESSAGE_ID_READ_AKE_SEND_H_PRIME,
|
|
hdcp->auth.msg.hdcp2.ake_h_prime,
|
|
sizeof(hdcp->auth.msg.hdcp2.ake_h_prime));
|
|
}
|
|
return status;
|
|
}
|
|
|
|
enum mod_hdcp_status mod_hdcp_read_pairing_info(struct mod_hdcp *hdcp)
|
|
{
|
|
enum mod_hdcp_status status;
|
|
|
|
if (is_dp_hdcp(hdcp)) {
|
|
hdcp->auth.msg.hdcp2.ake_pairing_info[0] = HDCP_2_2_AKE_SEND_PAIRING_INFO;
|
|
status = read(hdcp, MOD_HDCP_MESSAGE_ID_READ_AKE_SEND_PAIRING_INFO,
|
|
hdcp->auth.msg.hdcp2.ake_pairing_info+1,
|
|
sizeof(hdcp->auth.msg.hdcp2.ake_pairing_info)-1);
|
|
|
|
} else {
|
|
status = read(hdcp, MOD_HDCP_MESSAGE_ID_READ_AKE_SEND_PAIRING_INFO,
|
|
hdcp->auth.msg.hdcp2.ake_pairing_info,
|
|
sizeof(hdcp->auth.msg.hdcp2.ake_pairing_info));
|
|
}
|
|
return status;
|
|
}
|
|
|
|
enum mod_hdcp_status mod_hdcp_read_l_prime(struct mod_hdcp *hdcp)
|
|
{
|
|
enum mod_hdcp_status status;
|
|
|
|
if (is_dp_hdcp(hdcp)) {
|
|
hdcp->auth.msg.hdcp2.lc_l_prime[0] = HDCP_2_2_LC_SEND_LPRIME;
|
|
status = read(hdcp, MOD_HDCP_MESSAGE_ID_READ_LC_SEND_L_PRIME,
|
|
hdcp->auth.msg.hdcp2.lc_l_prime+1,
|
|
sizeof(hdcp->auth.msg.hdcp2.lc_l_prime)-1);
|
|
|
|
} else {
|
|
status = read(hdcp, MOD_HDCP_MESSAGE_ID_READ_LC_SEND_L_PRIME,
|
|
hdcp->auth.msg.hdcp2.lc_l_prime,
|
|
sizeof(hdcp->auth.msg.hdcp2.lc_l_prime));
|
|
}
|
|
return status;
|
|
}
|
|
|
|
enum mod_hdcp_status mod_hdcp_read_rx_id_list(struct mod_hdcp *hdcp)
|
|
{
|
|
enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS;
|
|
|
|
if (is_dp_hdcp(hdcp)) {
|
|
uint32_t device_count = 0;
|
|
uint32_t rx_id_list_size = 0;
|
|
uint32_t bytes_read = 0;
|
|
|
|
hdcp->auth.msg.hdcp2.rx_id_list[0] = HDCP_2_2_REP_SEND_RECVID_LIST;
|
|
status = read(hdcp, MOD_HDCP_MESSAGE_ID_READ_REPEATER_AUTH_SEND_RECEIVERID_LIST,
|
|
hdcp->auth.msg.hdcp2.rx_id_list+1,
|
|
HDCP_MAX_AUX_TRANSACTION_SIZE);
|
|
if (status == MOD_HDCP_STATUS_SUCCESS) {
|
|
bytes_read = HDCP_MAX_AUX_TRANSACTION_SIZE;
|
|
device_count = HDCP_2_2_DEV_COUNT_LO(hdcp->auth.msg.hdcp2.rx_id_list[2]) +
|
|
(HDCP_2_2_DEV_COUNT_HI(hdcp->auth.msg.hdcp2.rx_id_list[1]) << 4);
|
|
rx_id_list_size = MIN((21 + 5 * device_count),
|
|
(sizeof(hdcp->auth.msg.hdcp2.rx_id_list) - 1));
|
|
status = read(hdcp, MOD_HDCP_MESSAGE_ID_READ_REPEATER_AUTH_SEND_RECEIVERID_LIST_PART2,
|
|
hdcp->auth.msg.hdcp2.rx_id_list + 1 + bytes_read,
|
|
(rx_id_list_size - 1) / HDCP_MAX_AUX_TRANSACTION_SIZE * HDCP_MAX_AUX_TRANSACTION_SIZE);
|
|
}
|
|
} else {
|
|
status = read(hdcp, MOD_HDCP_MESSAGE_ID_READ_REPEATER_AUTH_SEND_RECEIVERID_LIST,
|
|
hdcp->auth.msg.hdcp2.rx_id_list,
|
|
hdcp->auth.msg.hdcp2.rx_id_list_size);
|
|
}
|
|
return status;
|
|
}
|
|
|
|
enum mod_hdcp_status mod_hdcp_read_stream_ready(struct mod_hdcp *hdcp)
|
|
{
|
|
enum mod_hdcp_status status;
|
|
|
|
if (is_dp_hdcp(hdcp)) {
|
|
hdcp->auth.msg.hdcp2.repeater_auth_stream_ready[0] = HDCP_2_2_REP_STREAM_READY;
|
|
status = read(hdcp, MOD_HDCP_MESSAGE_ID_READ_REPEATER_AUTH_STREAM_READY,
|
|
hdcp->auth.msg.hdcp2.repeater_auth_stream_ready+1,
|
|
sizeof(hdcp->auth.msg.hdcp2.repeater_auth_stream_ready)-1);
|
|
|
|
} else {
|
|
status = read(hdcp, MOD_HDCP_MESSAGE_ID_READ_REPEATER_AUTH_STREAM_READY,
|
|
hdcp->auth.msg.hdcp2.repeater_auth_stream_ready,
|
|
sizeof(hdcp->auth.msg.hdcp2.repeater_auth_stream_ready));
|
|
}
|
|
return status;
|
|
}
|
|
|
|
enum mod_hdcp_status mod_hdcp_write_ake_init(struct mod_hdcp *hdcp)
|
|
{
|
|
enum mod_hdcp_status status;
|
|
|
|
if (is_dp_hdcp(hdcp))
|
|
status = write(hdcp, MOD_HDCP_MESSAGE_ID_WRITE_AKE_INIT,
|
|
hdcp->auth.msg.hdcp2.ake_init+1,
|
|
sizeof(hdcp->auth.msg.hdcp2.ake_init)-1);
|
|
else
|
|
status = write(hdcp, MOD_HDCP_MESSAGE_ID_WRITE_AKE_INIT,
|
|
hdcp->auth.msg.hdcp2.ake_init,
|
|
sizeof(hdcp->auth.msg.hdcp2.ake_init));
|
|
return status;
|
|
}
|
|
|
|
enum mod_hdcp_status mod_hdcp_write_no_stored_km(struct mod_hdcp *hdcp)
|
|
{
|
|
enum mod_hdcp_status status;
|
|
|
|
if (is_dp_hdcp(hdcp))
|
|
status = write(hdcp, MOD_HDCP_MESSAGE_ID_WRITE_AKE_NO_STORED_KM,
|
|
hdcp->auth.msg.hdcp2.ake_no_stored_km+1,
|
|
sizeof(hdcp->auth.msg.hdcp2.ake_no_stored_km)-1);
|
|
else
|
|
status = write(hdcp, MOD_HDCP_MESSAGE_ID_WRITE_AKE_NO_STORED_KM,
|
|
hdcp->auth.msg.hdcp2.ake_no_stored_km,
|
|
sizeof(hdcp->auth.msg.hdcp2.ake_no_stored_km));
|
|
return status;
|
|
}
|
|
|
|
enum mod_hdcp_status mod_hdcp_write_stored_km(struct mod_hdcp *hdcp)
|
|
{
|
|
enum mod_hdcp_status status;
|
|
|
|
if (is_dp_hdcp(hdcp))
|
|
status = write(hdcp, MOD_HDCP_MESSAGE_ID_WRITE_AKE_STORED_KM,
|
|
hdcp->auth.msg.hdcp2.ake_stored_km+1,
|
|
sizeof(hdcp->auth.msg.hdcp2.ake_stored_km)-1);
|
|
else
|
|
status = write(hdcp, MOD_HDCP_MESSAGE_ID_WRITE_AKE_STORED_KM,
|
|
hdcp->auth.msg.hdcp2.ake_stored_km,
|
|
sizeof(hdcp->auth.msg.hdcp2.ake_stored_km));
|
|
return status;
|
|
}
|
|
|
|
enum mod_hdcp_status mod_hdcp_write_lc_init(struct mod_hdcp *hdcp)
|
|
{
|
|
enum mod_hdcp_status status;
|
|
|
|
if (is_dp_hdcp(hdcp))
|
|
status = write(hdcp, MOD_HDCP_MESSAGE_ID_WRITE_LC_INIT,
|
|
hdcp->auth.msg.hdcp2.lc_init+1,
|
|
sizeof(hdcp->auth.msg.hdcp2.lc_init)-1);
|
|
else
|
|
status = write(hdcp, MOD_HDCP_MESSAGE_ID_WRITE_LC_INIT,
|
|
hdcp->auth.msg.hdcp2.lc_init,
|
|
sizeof(hdcp->auth.msg.hdcp2.lc_init));
|
|
return status;
|
|
}
|
|
|
|
enum mod_hdcp_status mod_hdcp_write_eks(struct mod_hdcp *hdcp)
|
|
{
|
|
enum mod_hdcp_status status;
|
|
|
|
if (is_dp_hdcp(hdcp))
|
|
status = write(hdcp,
|
|
MOD_HDCP_MESSAGE_ID_WRITE_SKE_SEND_EKS,
|
|
hdcp->auth.msg.hdcp2.ske_eks+1,
|
|
sizeof(hdcp->auth.msg.hdcp2.ske_eks)-1);
|
|
else
|
|
status = write(hdcp,
|
|
MOD_HDCP_MESSAGE_ID_WRITE_SKE_SEND_EKS,
|
|
hdcp->auth.msg.hdcp2.ske_eks,
|
|
sizeof(hdcp->auth.msg.hdcp2.ske_eks));
|
|
return status;
|
|
}
|
|
|
|
enum mod_hdcp_status mod_hdcp_write_repeater_auth_ack(struct mod_hdcp *hdcp)
|
|
{
|
|
enum mod_hdcp_status status;
|
|
|
|
if (is_dp_hdcp(hdcp))
|
|
status = write(hdcp, MOD_HDCP_MESSAGE_ID_WRITE_REPEATER_AUTH_SEND_ACK,
|
|
hdcp->auth.msg.hdcp2.repeater_auth_ack+1,
|
|
sizeof(hdcp->auth.msg.hdcp2.repeater_auth_ack)-1);
|
|
else
|
|
status = write(hdcp, MOD_HDCP_MESSAGE_ID_WRITE_REPEATER_AUTH_SEND_ACK,
|
|
hdcp->auth.msg.hdcp2.repeater_auth_ack,
|
|
sizeof(hdcp->auth.msg.hdcp2.repeater_auth_ack));
|
|
return status;
|
|
}
|
|
|
|
enum mod_hdcp_status mod_hdcp_write_stream_manage(struct mod_hdcp *hdcp)
|
|
{
|
|
enum mod_hdcp_status status;
|
|
|
|
if (is_dp_hdcp(hdcp))
|
|
status = write(hdcp,
|
|
MOD_HDCP_MESSAGE_ID_WRITE_REPEATER_AUTH_STREAM_MANAGE,
|
|
hdcp->auth.msg.hdcp2.repeater_auth_stream_manage+1,
|
|
hdcp->auth.msg.hdcp2.stream_manage_size-1);
|
|
else
|
|
status = write(hdcp,
|
|
MOD_HDCP_MESSAGE_ID_WRITE_REPEATER_AUTH_STREAM_MANAGE,
|
|
hdcp->auth.msg.hdcp2.repeater_auth_stream_manage,
|
|
hdcp->auth.msg.hdcp2.stream_manage_size);
|
|
return status;
|
|
}
|
|
|
|
enum mod_hdcp_status mod_hdcp_write_content_type(struct mod_hdcp *hdcp)
|
|
{
|
|
enum mod_hdcp_status status;
|
|
|
|
if (is_dp_hdcp(hdcp))
|
|
status = write(hdcp, MOD_HDCP_MESSAGE_ID_WRITE_CONTENT_STREAM_TYPE,
|
|
hdcp->auth.msg.hdcp2.content_stream_type_dp+1,
|
|
sizeof(hdcp->auth.msg.hdcp2.content_stream_type_dp)-1);
|
|
else
|
|
status = MOD_HDCP_STATUS_INVALID_OPERATION;
|
|
return status;
|
|
}
|
|
|
|
enum mod_hdcp_status mod_hdcp_clear_cp_irq_status(struct mod_hdcp *hdcp)
|
|
{
|
|
uint8_t clear_cp_irq_bit = DP_CP_IRQ;
|
|
uint32_t size = 1;
|
|
|
|
if (is_dp_hdcp(hdcp)) {
|
|
uint32_t cp_irq_addrs = (hdcp->connection.link.dp.rev >= 0x14)
|
|
? DP_DEVICE_SERVICE_IRQ_VECTOR_ESI0:DP_DEVICE_SERVICE_IRQ_VECTOR;
|
|
return hdcp->config.ddc.funcs.write_dpcd(hdcp->config.ddc.handle, cp_irq_addrs,
|
|
&clear_cp_irq_bit, size) ? MOD_HDCP_STATUS_SUCCESS : MOD_HDCP_STATUS_DDC_FAILURE;
|
|
}
|
|
|
|
return MOD_HDCP_STATUS_INVALID_OPERATION;
|
|
}
|