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 CFCTRL_H_ 8 #define CFCTRL_H_ 9 #include <net/caif/caif_layer.h> 10 #include <net/caif/cfsrvl.h> 11 12 /* CAIF Control packet commands */ 13 enum cfctrl_cmd { 14 CFCTRL_CMD_LINK_SETUP = 0, 15 CFCTRL_CMD_LINK_DESTROY = 1, 16 CFCTRL_CMD_LINK_ERR = 2, 17 CFCTRL_CMD_ENUM = 3, 18 CFCTRL_CMD_SLEEP = 4, 19 CFCTRL_CMD_WAKE = 5, 20 CFCTRL_CMD_LINK_RECONF = 6, 21 CFCTRL_CMD_START_REASON = 7, 22 CFCTRL_CMD_RADIO_SET = 8, 23 CFCTRL_CMD_MODEM_SET = 9, 24 CFCTRL_CMD_MASK = 0xf 25 }; 26 27 /* Channel types */ 28 enum cfctrl_srv { 29 CFCTRL_SRV_DECM = 0, 30 CFCTRL_SRV_VEI = 1, 31 CFCTRL_SRV_VIDEO = 2, 32 CFCTRL_SRV_DBG = 3, 33 CFCTRL_SRV_DATAGRAM = 4, 34 CFCTRL_SRV_RFM = 5, 35 CFCTRL_SRV_UTIL = 6, 36 CFCTRL_SRV_MASK = 0xf 37 }; 38 39 #define CFCTRL_RSP_BIT 0x20 40 #define CFCTRL_ERR_BIT 0x10 41 42 struct cfctrl_rsp { 43 void (*linksetup_rsp)(struct cflayer *layer, u8 linkid, 44 enum cfctrl_srv serv, u8 phyid, 45 struct cflayer *adapt_layer); 46 void (*linkdestroy_rsp)(struct cflayer *layer, u8 linkid, 47 struct cflayer *client_layer); 48 void (*linkerror_ind)(void); 49 void (*enum_rsp)(void); 50 void (*sleep_rsp)(void); 51 void (*wake_rsp)(void); 52 void (*restart_rsp)(void); 53 void (*radioset_rsp)(void); 54 void (*reject_rsp)(struct cflayer *layer, u8 linkid, 55 struct cflayer *client_layer);; 56 }; 57 58 /* Link Setup Parameters for CAIF-Links. */ 59 struct cfctrl_link_param { 60 enum cfctrl_srv linktype;/* (T3,T0) Type of Channel */ 61 u8 priority; /* (P4,P0) Priority of the channel */ 62 u8 phyid; /* (U2-U0) Physical interface to connect */ 63 u8 endpoint; /* (E1,E0) Endpoint for data channels */ 64 u8 chtype; /* (H1,H0) Channel-Type, applies to 65 * VEI, DEBUG */ 66 union { 67 struct { 68 u8 connid; /* (D7,D0) Video LinkId */ 69 } video; 70 71 struct { 72 u32 connid; /* (N31,Ngit0) Connection ID used 73 * for Datagram */ 74 } datagram; 75 76 struct { 77 u32 connid; /* Connection ID used for RFM */ 78 char volume[20]; /* Volume to mount for RFM */ 79 } rfm; /* Configuration for RFM */ 80 81 struct { 82 u16 fifosize_kb; /* Psock FIFO size in KB */ 83 u16 fifosize_bufs; /* Psock # signal buffers */ 84 char name[16]; /* Name of the PSOCK service */ 85 u8 params[255]; /* Link setup Parameters> */ 86 u16 paramlen; /* Length of Link Setup 87 * Parameters */ 88 } utility; /* Configuration for Utility Links (Psock) */ 89 } u; 90 }; 91 92 /* This structure is used internally in CFCTRL */ 93 struct cfctrl_request_info { 94 int sequence_no; 95 enum cfctrl_cmd cmd; 96 u8 channel_id; 97 struct cfctrl_link_param param; 98 struct cfctrl_request_info *next; 99 struct cflayer *client_layer; 100 }; 101 102 struct cfctrl { 103 struct cfsrvl serv; 104 struct cfctrl_rsp res; 105 atomic_t req_seq_no; 106 atomic_t rsp_seq_no; 107 struct cfctrl_request_info *first_req; 108 /* Protects from simultaneous access to first_req list */ 109 spinlock_t info_list_lock; 110 #ifndef CAIF_NO_LOOP 111 u8 loop_linkid; 112 int loop_linkused[256]; 113 /* Protects simultaneous access to loop_linkid and loop_linkused */ 114 spinlock_t loop_linkid_lock; 115 #endif 116 117 }; 118 119 void cfctrl_enum_req(struct cflayer *cfctrl, u8 physlinkid); 120 void cfctrl_linkup_request(struct cflayer *cfctrl, 121 struct cfctrl_link_param *param, 122 struct cflayer *user_layer); 123 int cfctrl_linkdown_req(struct cflayer *cfctrl, u8 linkid, 124 struct cflayer *client); 125 void cfctrl_sleep_req(struct cflayer *cfctrl); 126 void cfctrl_wake_req(struct cflayer *cfctrl); 127 void cfctrl_getstartreason_req(struct cflayer *cfctrl); 128 struct cflayer *cfctrl_create(void); 129 void cfctrl_set_dnlayer(struct cflayer *this, struct cflayer *dn); 130 void cfctrl_set_uplayer(struct cflayer *this, struct cflayer *up); 131 struct cfctrl_rsp *cfctrl_get_respfuncs(struct cflayer *layer); 132 bool cfctrl_req_eq(struct cfctrl_request_info *r1, 133 struct cfctrl_request_info *r2); 134 void cfctrl_insert_req(struct cfctrl *ctrl, 135 struct cfctrl_request_info *req); 136 struct cfctrl_request_info *cfctrl_remove_req(struct cfctrl *ctrl, 137 struct cfctrl_request_info *req); 138 #endif /* CFCTRL_H_ */ 139