1 /* 2 * Copyright (C) ST-Ericsson AB 2010 3 * Author: Sjur Brendeland/ sjur.brandeland@stericsson.com 4 * License terms: GNU General Public License (GPL) version 2 5 */ 6 7 #ifndef CAIF_DEV_H_ 8 #define CAIF_DEV_H_ 9 10 #include <net/caif/caif_layer.h> 11 #include <net/caif/cfcnfg.h> 12 #include <linux/caif/caif_socket.h> 13 #include <linux/if.h> 14 15 /** 16 * struct caif_param - CAIF parameters. 17 * @size: Length of data 18 * @data: Binary Data Blob 19 */ 20 struct caif_param { 21 u16 size; 22 u8 data[256]; 23 }; 24 25 /** 26 * struct caif_connect_request - Request data for CAIF channel setup. 27 * @protocol: Type of CAIF protocol to use (at, datagram etc) 28 * @sockaddr: Socket address to connect. 29 * @priority: Priority of the connection. 30 * @link_selector: Link selector (high bandwidth or low latency) 31 * @link_name: Name of the CAIF Link Layer to use. 32 * @param: Connect Request parameters (CAIF_SO_REQ_PARAM). 33 * 34 * This struct is used when connecting a CAIF channel. 35 * It contains all CAIF channel configuration options. 36 */ 37 struct caif_connect_request { 38 enum caif_protocol_type protocol; 39 struct sockaddr_caif sockaddr; 40 enum caif_channel_priority priority; 41 enum caif_link_selector link_selector; 42 char link_name[16]; 43 struct caif_param param; 44 }; 45 46 /** 47 * caif_connect_client - Connect a client to CAIF Core Stack. 48 * @config: Channel setup parameters, specifying what address 49 * to connect on the Modem. 50 * @client_layer: User implementation of client layer. This layer 51 * MUST have receive and control callback functions 52 * implemented. 53 * 54 * This function connects a CAIF channel. The Client must implement 55 * the struct cflayer. This layer represents the Client layer and holds 56 * receive functions and control callback functions. Control callback 57 * function will receive information about connect/disconnect responses, 58 * flow control etc (see enum caif_control). 59 * E.g. CAIF Socket will call this function for each socket it connects 60 * and have one client_layer instance for each socket. 61 */ 62 int caif_connect_client(struct caif_connect_request *config, 63 struct cflayer *client_layer); 64 65 /** 66 * caif_disconnect_client - Disconnects a client from the CAIF stack. 67 * 68 * @client_layer: Client layer to be removed. 69 */ 70 int caif_disconnect_client(struct cflayer *client_layer); 71 72 /** 73 * caif_release_client - Release adaptation layer reference to client. 74 * 75 * @client_layer: Client layer. 76 * 77 * Releases a client/adaptation layer use of the caif stack. 78 * This function must be used after caif_disconnect_client to 79 * decrease the reference count of the service layer. 80 */ 81 void caif_release_client(struct cflayer *client_layer); 82 83 /** 84 * connect_req_to_link_param - Translate configuration parameters 85 * from socket format to internal format. 86 * @cnfg: Pointer to configuration handler 87 * @con_req: Configuration parameters supplied in function 88 * caif_connect_client 89 * @channel_setup_param: Parameters supplied to the CAIF Core stack for 90 * setting up channels. 91 * 92 */ 93 int connect_req_to_link_param(struct cfcnfg *cnfg, 94 struct caif_connect_request *con_req, 95 struct cfctrl_link_param *channel_setup_param); 96 97 /** 98 * get_caif_conf() - Get the configuration handler. 99 */ 100 struct cfcnfg *get_caif_conf(void); 101 102 103 #endif /* CAIF_DEV_H_ */ 104