| /* Copyright (c) 2011-2016, 2018, The Linux Foundation. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 and |
| * only version 2 as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| #ifndef _IPC_ROUTER_PRIVATE_H |
| #define _IPC_ROUTER_PRIVATE_H |
| |
| #include <linux/types.h> |
| #include <linux/socket.h> |
| #include <linux/errno.h> |
| #include <linux/mm.h> |
| #include <linux/list.h> |
| #include <linux/platform_device.h> |
| #include <linux/msm_ipc.h> |
| #include <linux/ipc_router.h> |
| #include <linux/ipc_router_xprt.h> |
| |
| #include <net/sock.h> |
| |
| /* definitions for the R2R wire protocol */ |
| #define IPC_ROUTER_V1 1 |
| /* Ambiguous definition but will enable multiplexing IPC_ROUTER_V2 packets |
| * with an existing alternate transport in user-space, if needed. |
| */ |
| #define IPC_ROUTER_V2 3 |
| #define IPC_ROUTER_VER_BITMASK ((BIT(IPC_ROUTER_V1)) | (BIT(IPC_ROUTER_V2))) |
| #define IPC_ROUTER_HELLO_MAGIC 0xE110 |
| #define IPC_ROUTER_CHECKSUM_MASK 0xFFFF |
| |
| #define IPC_ROUTER_ADDRESS 0x0000FFFF |
| |
| #define IPC_ROUTER_NID_LOCAL CONFIG_IPC_ROUTER_NODE_ID |
| #define MAX_IPC_PKT_SIZE 66000 |
| |
| #define IPC_ROUTER_LOW_RX_QUOTA 5 |
| #define IPC_ROUTER_HIGH_RX_QUOTA 10 |
| |
| #define IPC_ROUTER_INFINITY -1 |
| #define DEFAULT_RCV_TIMEO IPC_ROUTER_INFINITY |
| #define DEFAULT_SND_TIMEO IPC_ROUTER_INFINITY |
| |
| #define ALIGN_SIZE(x) ((4 - ((x) & 3)) & 3) |
| |
| #define ALL_SERVICE 0xFFFFFFFF |
| #define ALL_INSTANCE 0xFFFFFFFF |
| |
| #define CONTROL_FLAG_CONFIRM_RX 0x1 |
| #define CONTROL_FLAG_OPT_HDR 0x2 |
| |
| enum { |
| CLIENT_PORT, |
| SERVER_PORT, |
| CONTROL_PORT, |
| IRSC_PORT, |
| }; |
| |
| enum { |
| NULL_MODE, |
| SINGLE_LINK_MODE, |
| MULTI_LINK_MODE, |
| }; |
| |
| enum { |
| CONNECTION_RESET = -1, |
| NOT_CONNECTED, |
| CONNECTED, |
| }; |
| |
| struct msm_ipc_sock { |
| struct sock sk; |
| struct msm_ipc_port *port; |
| void *default_node_vote_info; |
| }; |
| |
| /** |
| * msm_ipc_router_create_raw_port() - Create an IPC Router port |
| * @endpoint: User-space space socket information to be cached. |
| * @notify: Function to notify incoming events on the port. |
| * @event: Event ID to be handled. |
| * @oob_data: Any out-of-band data associated with the event. |
| * @oob_data_len: Size of the out-of-band data, if valid. |
| * @priv: Private data registered during the port creation. |
| * @priv: Private Data to be passed during the event notification. |
| * |
| * @return: Valid pointer to port on success, NULL on failure. |
| * |
| * This function is used to create an IPC Router port. The port is used for |
| * communication locally or outside the subsystem. |
| */ |
| struct msm_ipc_port * |
| msm_ipc_router_create_raw_port(void *endpoint, |
| void (*notify)(unsigned int event, |
| void *oob_data, |
| size_t oob_data_len, void *priv), |
| void *priv); |
| int msm_ipc_router_send_to(struct msm_ipc_port *src, |
| struct sk_buff_head *data, |
| struct msm_ipc_addr *dest, |
| long timeout); |
| int msm_ipc_router_read(struct msm_ipc_port *port_ptr, |
| struct rr_packet **pkt, |
| size_t buf_len); |
| |
| int msm_ipc_router_recv_from(struct msm_ipc_port *port_ptr, |
| struct rr_packet **pkt, |
| struct msm_ipc_addr *src_addr, long timeout); |
| int msm_ipc_router_register_server(struct msm_ipc_port *server_port, |
| struct msm_ipc_addr *name); |
| int msm_ipc_router_unregister_server(struct msm_ipc_port *server_port); |
| |
| int msm_ipc_router_init_sockets(void); |
| void msm_ipc_router_exit_sockets(void); |
| |
| void msm_ipc_sync_sec_rule(u32 service, u32 instance, void *rule); |
| |
| void msm_ipc_sync_default_sec_rule(void *rule); |
| |
| int msm_ipc_router_rx_data_wait(struct msm_ipc_port *port_ptr, long timeout); |
| |
| void msm_ipc_router_free_skb(struct sk_buff_head *skb_head); |
| |
| /** |
| * ipc_router_set_conn() - Set the connection by initializing dest address |
| * @port_ptr: Local port in which the connection has to be set. |
| * @addr: Destination address of the connection. |
| * |
| * @return: 0 on success, standard Linux error codes on failure. |
| */ |
| int ipc_router_set_conn(struct msm_ipc_port *port_ptr, |
| struct msm_ipc_addr *addr); |
| |
| void *msm_ipc_load_default_node(void); |
| |
| void msm_ipc_unload_default_node(void *pil); |
| |
| /** |
| * ipc_router_dummy_write_space() - Dummy write space available callback |
| * @sk: Socket pointer for which the callback is called. |
| */ |
| void ipc_router_dummy_write_space(struct sock *sk); |
| |
| #endif |