forked from luck/tmp_suning_uos_patched
7aecf4944f
Discovered bug when running high number of parallel connect requests. Replace buggy home brewed list with linux/list.h. Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
140 lines
4.0 KiB
C
140 lines
4.0 KiB
C
/*
|
|
* Copyright (C) ST-Ericsson AB 2010
|
|
* Author: Sjur Brendeland/sjur.brandeland@stericsson.com
|
|
* License terms: GNU General Public License (GPL) version 2
|
|
*/
|
|
|
|
#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);
|
|
void cfctrl_sleep_req(struct cflayer *cfctrl);
|
|
void cfctrl_wake_req(struct cflayer *cfctrl);
|
|
void cfctrl_getstartreason_req(struct cflayer *cfctrl);
|
|
struct cflayer *cfctrl_create(void);
|
|
void cfctrl_set_dnlayer(struct cflayer *this, struct cflayer *dn);
|
|
void cfctrl_set_uplayer(struct cflayer *this, struct cflayer *up);
|
|
struct cfctrl_rsp *cfctrl_get_respfuncs(struct cflayer *layer);
|
|
bool cfctrl_req_eq(struct cfctrl_request_info *r1,
|
|
struct cfctrl_request_info *r2);
|
|
void cfctrl_insert_req(struct cfctrl *ctrl,
|
|
struct cfctrl_request_info *req);
|
|
struct cfctrl_request_info *cfctrl_remove_req(struct cfctrl *ctrl,
|
|
struct cfctrl_request_info *req);
|
|
void cfctrl_cancel_req(struct cflayer *layr, struct cflayer *adap_layer);
|
|
|
|
#endif /* CFCTRL_H_ */
|