145 lines
4.2 KiB
C
145 lines
4.2 KiB
C
/* Copyright (c) 2011-2015, The Linux Foundation. All rights reserved.
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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 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef _IPC_ROUTER_PRIVATE_H
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#define _IPC_ROUTER_PRIVATE_H
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#include <linux/types.h>
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#include <linux/socket.h>
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#include <linux/errno.h>
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#include <linux/mm.h>
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#include <linux/list.h>
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#include <linux/platform_device.h>
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#include <linux/msm_ipc.h>
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#include <linux/ipc_router.h>
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#include <linux/ipc_router_xprt.h>
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#include <net/sock.h>
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/* definitions for the R2R wire protcol */
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#define IPC_ROUTER_V1 1
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/*
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* Ambiguous definition but will enable multiplexing IPC_ROUTER_V2 packets
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* with an existing alternate transport in user-space, if needed.
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*/
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#define IPC_ROUTER_V2 3
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#define IPC_ROUTER_VER_BITMASK ((BIT(IPC_ROUTER_V1)) | (BIT(IPC_ROUTER_V2)))
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#define IPC_ROUTER_HELLO_MAGIC 0xE110
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#define IPC_ROUTER_CHECKSUM_MASK 0xFFFF
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#define IPC_ROUTER_ADDRESS 0x0000FFFF
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#define IPC_ROUTER_NID_LOCAL 1
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#define MAX_IPC_PKT_SIZE 66000
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#define IPC_ROUTER_LOW_RX_QUOTA 5
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#define IPC_ROUTER_HIGH_RX_QUOTA 10
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#define IPC_ROUTER_INFINITY -1
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#define DEFAULT_RCV_TIMEO IPC_ROUTER_INFINITY
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#define DEFAULT_SND_TIMEO IPC_ROUTER_INFINITY
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#define ALIGN_SIZE(x) ((4 - ((x) & 3)) & 3)
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#define ALL_SERVICE 0xFFFFFFFF
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#define ALL_INSTANCE 0xFFFFFFFF
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#define CONTROL_FLAG_CONFIRM_RX 0x1
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#define CONTROL_FLAG_OPT_HDR 0x2
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enum {
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CLIENT_PORT,
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SERVER_PORT,
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CONTROL_PORT,
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IRSC_PORT,
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};
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enum {
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NULL_MODE,
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SINGLE_LINK_MODE,
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MULTI_LINK_MODE,
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};
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enum {
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CONNECTION_RESET = -1,
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NOT_CONNECTED,
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CONNECTED,
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};
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struct msm_ipc_sock {
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struct sock sk;
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struct msm_ipc_port *port;
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void *default_node_vote_info;
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};
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/**
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* msm_ipc_router_create_raw_port() - Create an IPC Router port
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* @endpoint: User-space space socket information to be cached.
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* @notify: Function to notify incoming events on the port.
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* @event: Event ID to be handled.
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* @oob_data: Any out-of-band data associated with the event.
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* @oob_data_len: Size of the out-of-band data, if valid.
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* @priv: Private data registered during the port creation.
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* @priv: Private Data to be passed during the event notification.
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*
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* @return: Valid pointer to port on success, NULL on failure.
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*
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* This function is used to create an IPC Router port. The port is used for
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* communication locally or outside the subsystem.
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*/
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struct msm_ipc_port *msm_ipc_router_create_raw_port(void *endpoint,
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void (*notify)(unsigned event, void *oob_data,
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size_t oob_data_len, void *priv),
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void *priv);
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int msm_ipc_router_send_to(struct msm_ipc_port *src,
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struct sk_buff_head *data,
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struct msm_ipc_addr *dest,
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long timeout);
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int msm_ipc_router_read(struct msm_ipc_port *port_ptr,
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struct rr_packet **pkt,
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size_t buf_len);
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int msm_ipc_router_recv_from(struct msm_ipc_port *port_ptr,
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struct rr_packet **pkt,
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struct msm_ipc_addr *src_addr,
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long timeout);
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int msm_ipc_router_register_server(struct msm_ipc_port *server_port,
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struct msm_ipc_addr *name);
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int msm_ipc_router_unregister_server(struct msm_ipc_port *server_port);
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int msm_ipc_router_init_sockets(void);
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void msm_ipc_router_exit_sockets(void);
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void msm_ipc_sync_sec_rule(uint32_t service, uint32_t instance, void *rule);
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void msm_ipc_sync_default_sec_rule(void *rule);
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int msm_ipc_router_rx_data_wait(struct msm_ipc_port *port_ptr, long timeout);
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void msm_ipc_router_free_skb(struct sk_buff_head *skb_head);
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/**
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* ipc_router_set_conn() - Set the connection by initializing dest address
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* @port_ptr: Local port in which the connection has to be set.
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* @addr: Destination address of the connection.
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*
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* @return: 0 on success, standard Linux error codes on failure.
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*/
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int ipc_router_set_conn(struct msm_ipc_port *port_ptr,
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struct msm_ipc_addr *addr);
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void *msm_ipc_load_default_node(void);
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void msm_ipc_unload_default_node(void *pil);
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#endif
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