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