net/caif/caif_config_util.c

   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 #include <linux/module.h>
   8 #include <linux/spinlock.h>
   9 #include <net/caif/cfctrl.h>
  10 #include <net/caif/cfcnfg.h>
  11 #include <net/caif/caif_dev.h>
  12
  13 int connect_req_to_link_param(struct cfcnfg *cnfg,
  14                                 struct caif_connect_request *s,
  15                                 struct cfctrl_link_param *l)
  16 {
  17         struct dev_info *dev_info;
  18         enum cfcnfg_phy_preference pref;
  19         memset(l, 0, sizeof(*l));
  20         l->priority = s->priority;
  21
  22         if (s->link_name[0] != '\0')
  23                 l->phyid = cfcnfg_get_named(cnfg, s->link_name);
  24         else {
  25                 switch (s->link_selector) {
  26                 case CAIF_LINK_HIGH_BANDW:
  27                         pref = CFPHYPREF_HIGH_BW;
  28                         break;
  29                 case CAIF_LINK_LOW_LATENCY:
  30                         pref = CFPHYPREF_LOW_LAT;
  31                         break;
  32                 default:
  33                         return -EINVAL;
  34                 }
  35                 dev_info = cfcnfg_get_phyid(cnfg, pref);
  36                 if (dev_info == NULL)
  37                         return -ENODEV;
  38                 l->phyid = dev_info->id;
  39         }
  40         switch (s->protocol) {
  41         case CAIFPROTO_AT:
  42                 l->linktype = CFCTRL_SRV_VEI;
  43                 if (s->sockaddr.u.at.type == CAIF_ATTYPE_PLAIN)
  44                         l->chtype = 0x02;
  45                 else
  46                         l->chtype = s->sockaddr.u.at.type;
  47                 l->endpoint = 0x00;
  48                 break;
  49         case CAIFPROTO_DATAGRAM:
  50                 l->linktype = CFCTRL_SRV_DATAGRAM;
  51                 l->chtype = 0x00;
  52                 l->u.datagram.connid = s->sockaddr.u.dgm.connection_id;
  53                 break;
  54         case CAIFPROTO_DATAGRAM_LOOP:
  55                 l->linktype = CFCTRL_SRV_DATAGRAM;
  56                 l->chtype = 0x03;
  57                 l->endpoint = 0x00;
  58                 l->u.datagram.connid = s->sockaddr.u.dgm.connection_id;
  59                 break;
  60         case CAIFPROTO_RFM:
  61                 l->linktype = CFCTRL_SRV_RFM;
  62                 l->u.datagram.connid = s->sockaddr.u.rfm.connection_id;
  63                 strncpy(l->u.rfm.volume, s->sockaddr.u.rfm.volume,
  64                         sizeof(l->u.rfm.volume)-1);
  65                 l->u.rfm.volume[sizeof(l->u.rfm.volume)-1] = 0;
  66                 break;
  67         case CAIFPROTO_UTIL:
  68                 l->linktype = CFCTRL_SRV_UTIL;
  69                 l->endpoint = 0x00;
  70                 l->chtype = 0x00;
  71                 strncpy(l->u.utility.name, s->sockaddr.u.util.service,
  72                         sizeof(l->u.utility.name)-1);
  73                 l->u.utility.name[sizeof(l->u.utility.name)-1] = 0;
  74                 caif_assert(sizeof(l->u.utility.name) > 10);
  75                 l->u.utility.paramlen = s->param.size;
  76                 if (l->u.utility.paramlen > sizeof(l->u.utility.params))
  77                         l->u.utility.paramlen = sizeof(l->u.utility.params);
  78
  79                 memcpy(l->u.utility.params, s->param.data,
  80                        l->u.utility.paramlen);
  81
  82                 break;
  83         default:
  84                 return -EINVAL;
  85         }
  86         return 0;
  87 }