131 lines
4.1 KiB
C
131 lines
4.1 KiB
C
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/*
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* drivers/soc/samsung/exynos-hdcp/exynos-hdcp2-tx-session.h
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*
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* Copyright (c) 2016 Samsung Electronics Co., Ltd.
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* http://www.samsung.com
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef __HDCP_TX_SESSION_H__
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#define __HDCP_TX_SESSION_H__
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#include "exynos-hdcp2-protocol-msg.h"
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#define WRAP_SKEY_EMPTY 0
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#define WRAP_SKEY_STORED 1
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#define HDCP_WITHOUT_STORED_KM 0
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#define HDCP_WITH_STORED_KM 1
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#define MAX_IP_LEN 15 /* IP address format is "xxx.xxx.xxx.xxx" */
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#define RECEIVER_ID_BYTE_LEN (40 / 8)
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#define HDCP_PRIVATE_DATA_LEN 16
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#define HDCP_WRAPPED_HMAC_LEN 124
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#define REPEATER 1
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#define NO_RECEIVER 0
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/**
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* HDCP Link state & data structure
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*/
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typedef enum hdcp_tx_hdcp_link_state {
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LINK_ST_INIT = 0,
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LINK_ST_H0_NO_RX_ATTATCHED,
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LINK_ST_H1_TX_LOW_VALUE_CONTENT,
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LINK_ST_A0_DETERMINE_RX_HDCP_CAP,
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LINK_ST_A1_EXCHANGE_MASTER_KEY,
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LINK_ST_A2_LOCALITY_CHECK,
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LINK_ST_A3_EXCHANGE_SESSION_KEY,
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LINK_ST_A4_TEST_REPEATER,
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LINK_ST_A5_AUTHENTICATED,
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LINK_ST_A6_WAIT_RECEIVER_ID_LIST,
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LINK_ST_A7_VERIFY_RECEIVER_ID_LIST,
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LINK_ST_A8_SEND_RECEIVER_ID_LIST_ACK,
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LINK_ST_A9_CONTENT_STREAM_MGT,
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LINK_ST_END
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} hdcp_tx_hdcp_link_state;
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struct hdcp_session_node {
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struct hdcp_session_data *ss_data;
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struct hdcp_session_node *next;
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struct hdcp_session_node *prev;
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};
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struct hdcp_session_list {
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struct hdcp_session_node hdcp_session_head;
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struct mutex ss_mutex;
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};
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struct hdcp_timer {
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struct timeval start;
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struct timeval end;
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uint32_t timeout; /* millisecond */
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uint32_t elapsed_time; /* millisecond */
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};
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struct hdcp_link_data {
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uint32_t id;
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uint32_t state;
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uint8_t stored_km;
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uint32_t errno; /* error code */
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uint32_t lk_type; /* link type */
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struct hdcp_tx_ctx tx_ctx; /* Transmitter context data */
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struct hdcp_rx_ctx rx_ctx; /* Receiver context data */
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struct hdcp_timer timer; /* to check timeout */
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struct hdcp_session_node *ss_ptr; /* session pointer link belong */
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};
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struct hdcp_link_node {
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struct hdcp_link_data *lk_data;
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struct hdcp_link_node *next;
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struct hdcp_link_node *prev;
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};
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struct hdcp_link_list {
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struct hdcp_link_node hdcp_link_head;
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struct mutex lk_mutex;
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};
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/**
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* HDCP Session status & data structure
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*/
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typedef enum hdcp_tx_ss_state {
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SESS_ST_INIT = 0,
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SESS_ST_LINK_SETUP,
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SESS_ST_END
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} hdcp_tx_ss_state;
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struct hdcp_session_data {
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uint32_t id;
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hdcp_tx_ss_state state;
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uint8_t wrap_skey_store;
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uint8_t riv[HDCP_AKE_RTX_BYTE_LEN];
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uint8_t wrap_skey[HDCP_AKE_WKEY_BYTE_LEN];
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struct hdcp_link_list ln;
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};
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struct hdcp_session_data *hdcp_session_data_create(void);
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void hdcp_session_data_destroy(struct hdcp_session_data **ss_data);
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struct hdcp_link_data *hdcp_link_data_create(void);
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void hdcp_link_data_destroy(struct hdcp_link_data **lk_data);
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/* Session list APIs */
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void hdcp_session_list_init(struct hdcp_session_list *ss_list);
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void hdcp_session_list_add(struct hdcp_session_node *new_ent, struct hdcp_session_list *ss_list);
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void hdcp_session_list_del(struct hdcp_session_node *del_ent, struct hdcp_session_list *ss_list);
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void hdcp_session_list_print_all(struct hdcp_session_list *ss_list);
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void hdcp_session_list_destroy(struct hdcp_session_list *ss_list);
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struct hdcp_session_node *hdcp_session_list_find(uint32_t id, struct hdcp_session_list *ss_list);
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/* Link list APIs */
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void hdcp_link_list_init(struct hdcp_link_list *lk_list);
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void hdcp_link_list_add(struct hdcp_link_node *new_ent, struct hdcp_link_list *lk_list);
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void hdcp_link_list_del(struct hdcp_link_node *del_ent, struct hdcp_link_list *lk_list);
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void hdcp_link_list_print_all(struct hdcp_link_list *lk_list);
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void hdcp_link_list_destroy(struct hdcp_link_list *lk_list);
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struct hdcp_link_node *hdcp_link_list_find(uint32_t id, struct hdcp_link_list *lk_list);
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#endif
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