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130 lines
3.4 KiB
130 lines
3.4 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* Copyright (C) ST-Ericsson AB 2010 |
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* Author: Sjur Brendeland |
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*/ |
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#ifndef CFCTRL_H_ |
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#define CFCTRL_H_ |
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#include <net/caif/caif_layer.h> |
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#include <net/caif/cfsrvl.h> |
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/* CAIF Control packet commands */ |
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enum cfctrl_cmd { |
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CFCTRL_CMD_LINK_SETUP = 0, |
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CFCTRL_CMD_LINK_DESTROY = 1, |
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CFCTRL_CMD_LINK_ERR = 2, |
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CFCTRL_CMD_ENUM = 3, |
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CFCTRL_CMD_SLEEP = 4, |
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CFCTRL_CMD_WAKE = 5, |
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CFCTRL_CMD_LINK_RECONF = 6, |
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CFCTRL_CMD_START_REASON = 7, |
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CFCTRL_CMD_RADIO_SET = 8, |
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CFCTRL_CMD_MODEM_SET = 9, |
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CFCTRL_CMD_MASK = 0xf |
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}; |
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/* Channel types */ |
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enum cfctrl_srv { |
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CFCTRL_SRV_DECM = 0, |
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CFCTRL_SRV_VEI = 1, |
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CFCTRL_SRV_VIDEO = 2, |
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CFCTRL_SRV_DBG = 3, |
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CFCTRL_SRV_DATAGRAM = 4, |
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CFCTRL_SRV_RFM = 5, |
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CFCTRL_SRV_UTIL = 6, |
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CFCTRL_SRV_MASK = 0xf |
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}; |
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#define CFCTRL_RSP_BIT 0x20 |
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#define CFCTRL_ERR_BIT 0x10 |
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struct cfctrl_rsp { |
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void (*linksetup_rsp)(struct cflayer *layer, u8 linkid, |
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enum cfctrl_srv serv, u8 phyid, |
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struct cflayer *adapt_layer); |
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void (*linkdestroy_rsp)(struct cflayer *layer, u8 linkid); |
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void (*linkerror_ind)(void); |
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void (*enum_rsp)(void); |
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void (*sleep_rsp)(void); |
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void (*wake_rsp)(void); |
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void (*restart_rsp)(void); |
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void (*radioset_rsp)(void); |
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void (*reject_rsp)(struct cflayer *layer, u8 linkid, |
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struct cflayer *client_layer); |
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}; |
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/* Link Setup Parameters for CAIF-Links. */ |
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struct cfctrl_link_param { |
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enum cfctrl_srv linktype;/* (T3,T0) Type of Channel */ |
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u8 priority; /* (P4,P0) Priority of the channel */ |
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u8 phyid; /* (U2-U0) Physical interface to connect */ |
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u8 endpoint; /* (E1,E0) Endpoint for data channels */ |
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u8 chtype; /* (H1,H0) Channel-Type, applies to |
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* VEI, DEBUG */ |
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union { |
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struct { |
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u8 connid; /* (D7,D0) Video LinkId */ |
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} video; |
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struct { |
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u32 connid; /* (N31,Ngit0) Connection ID used |
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* for Datagram */ |
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} datagram; |
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struct { |
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u32 connid; /* Connection ID used for RFM */ |
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char volume[20]; /* Volume to mount for RFM */ |
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} rfm; /* Configuration for RFM */ |
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struct { |
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u16 fifosize_kb; /* Psock FIFO size in KB */ |
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u16 fifosize_bufs; /* Psock # signal buffers */ |
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char name[16]; /* Name of the PSOCK service */ |
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u8 params[255]; /* Link setup Parameters> */ |
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u16 paramlen; /* Length of Link Setup |
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* Parameters */ |
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} utility; /* Configuration for Utility Links (Psock) */ |
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} u; |
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}; |
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/* This structure is used internally in CFCTRL */ |
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struct cfctrl_request_info { |
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int sequence_no; |
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enum cfctrl_cmd cmd; |
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u8 channel_id; |
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struct cfctrl_link_param param; |
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struct cflayer *client_layer; |
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struct list_head list; |
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}; |
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struct cfctrl { |
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struct cfsrvl serv; |
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struct cfctrl_rsp res; |
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atomic_t req_seq_no; |
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atomic_t rsp_seq_no; |
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struct list_head list; |
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/* Protects from simultaneous access to first_req list */ |
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spinlock_t info_list_lock; |
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#ifndef CAIF_NO_LOOP |
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u8 loop_linkid; |
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int loop_linkused[256]; |
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/* Protects simultaneous access to loop_linkid and loop_linkused */ |
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spinlock_t loop_linkid_lock; |
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#endif |
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}; |
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void cfctrl_enum_req(struct cflayer *cfctrl, u8 physlinkid); |
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int cfctrl_linkup_request(struct cflayer *cfctrl, |
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struct cfctrl_link_param *param, |
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struct cflayer *user_layer); |
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int cfctrl_linkdown_req(struct cflayer *cfctrl, u8 linkid, |
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struct cflayer *client); |
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struct cflayer *cfctrl_create(void); |
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struct cfctrl_rsp *cfctrl_get_respfuncs(struct cflayer *layer); |
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int cfctrl_cancel_req(struct cflayer *layr, struct cflayer *adap_layer); |
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void cfctrl_remove(struct cflayer *layr); |
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#endif /* CFCTRL_H_ */
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