diff options
Diffstat (limited to 'drivers/isdn/gigaset/capi.c')
| -rw-r--r-- | drivers/isdn/gigaset/capi.c | 83 |
1 files changed, 51 insertions, 32 deletions
diff --git a/drivers/isdn/gigaset/capi.c b/drivers/isdn/gigaset/capi.c index cb55ead557c..e685123fef4 100644 --- a/drivers/isdn/gigaset/capi.c +++ b/drivers/isdn/gigaset/capi.c @@ -320,6 +320,39 @@ static const char *format_ie(const char *ie) return result; } +/* + * emit DATA_B3_CONF message + */ +static void send_data_b3_conf(struct cardstate *cs, struct capi_ctr *ctr, + u16 appl, u16 msgid, int channel, + u16 handle, u16 info) +{ + struct sk_buff *cskb; + u8 *msg; + + cskb = alloc_skb(CAPI_DATA_B3_CONF_LEN, GFP_ATOMIC); + if (!cskb) { + dev_err(cs->dev, "%s: out of memory\n", __func__); + return; + } + /* frequent message, avoid _cmsg overhead */ + msg = __skb_put(cskb, CAPI_DATA_B3_CONF_LEN); + CAPIMSG_SETLEN(msg, CAPI_DATA_B3_CONF_LEN); + CAPIMSG_SETAPPID(msg, appl); + CAPIMSG_SETCOMMAND(msg, CAPI_DATA_B3); + CAPIMSG_SETSUBCOMMAND(msg, CAPI_CONF); + CAPIMSG_SETMSGID(msg, msgid); + CAPIMSG_SETCONTROLLER(msg, ctr->cnr); + CAPIMSG_SETPLCI_PART(msg, channel); + CAPIMSG_SETNCCI_PART(msg, 1); + CAPIMSG_SETHANDLE_CONF(msg, handle); + CAPIMSG_SETINFO_CONF(msg, info); + + /* emit message */ + dump_rawmsg(DEBUG_MCMD, __func__, msg); + capi_ctr_handle_message(ctr, appl, cskb); +} + /* * driver interface functions @@ -340,7 +373,6 @@ void gigaset_skb_sent(struct bc_state *bcs, struct sk_buff *dskb) struct gigaset_capi_ctr *iif = cs->iif; struct gigaset_capi_appl *ap = bcs->ap; unsigned char *req = skb_mac_header(dskb); - struct sk_buff *cskb; u16 flags; /* update statistics */ @@ -357,34 +389,17 @@ void gigaset_skb_sent(struct bc_state *bcs, struct sk_buff *dskb) return; } - /* ToDo: honor unset "delivery confirmation" bit */ + /* + * send DATA_B3_CONF if "delivery confirmation" bit was set in request; + * otherwise it has already been sent by do_data_b3_req() + */ flags = CAPIMSG_FLAGS(req); - - /* build DATA_B3_CONF message */ - cskb = alloc_skb(CAPI_DATA_B3_CONF_LEN, GFP_ATOMIC); - if (!cskb) { - dev_err(cs->dev, "%s: out of memory\n", __func__); - return; - } - /* frequent message, avoid _cmsg overhead */ - CAPIMSG_SETLEN(cskb->data, CAPI_DATA_B3_CONF_LEN); - CAPIMSG_SETAPPID(cskb->data, ap->id); - CAPIMSG_SETCOMMAND(cskb->data, CAPI_DATA_B3); - CAPIMSG_SETSUBCOMMAND(cskb->data, CAPI_CONF); - CAPIMSG_SETMSGID(cskb->data, CAPIMSG_MSGID(req)); - CAPIMSG_SETCONTROLLER(cskb->data, iif->ctr.cnr); - CAPIMSG_SETPLCI_PART(cskb->data, bcs->channel + 1); - CAPIMSG_SETNCCI_PART(cskb->data, 1); - CAPIMSG_SETHANDLE_CONF(cskb->data, CAPIMSG_HANDLE_REQ(req)); - if (flags & ~CAPI_FLAGS_DELIVERY_CONFIRMATION) - CAPIMSG_SETINFO_CONF(cskb->data, - CapiFlagsNotSupportedByProtocol); - else - CAPIMSG_SETINFO_CONF(cskb->data, CAPI_NOERROR); - - /* emit message */ - dump_rawmsg(DEBUG_LLDATA, "DATA_B3_CONF", cskb->data); - capi_ctr_handle_message(&iif->ctr, ap->id, cskb); + if (flags & CAPI_FLAGS_DELIVERY_CONFIRMATION) + send_data_b3_conf(cs, &iif->ctr, ap->id, CAPIMSG_MSGID(req), + bcs->channel + 1, CAPIMSG_HANDLE_REQ(req), + (flags & ~CAPI_FLAGS_DELIVERY_CONFIRMATION) ? + CapiFlagsNotSupportedByProtocol : + CAPI_NOERROR); } EXPORT_SYMBOL_GPL(gigaset_skb_sent); @@ -1795,6 +1810,8 @@ static void do_data_b3_req(struct gigaset_capi_ctr *iif, u16 msglen = CAPIMSG_LEN(skb->data); u16 datalen = CAPIMSG_DATALEN(skb->data); u16 flags = CAPIMSG_FLAGS(skb->data); + u16 msgid = CAPIMSG_MSGID(skb->data); + u16 handle = CAPIMSG_HANDLE_REQ(skb->data); /* frequent message, avoid _cmsg overhead */ dump_rawmsg(DEBUG_LLDATA, "DATA_B3_REQ", skb->data); @@ -1845,12 +1862,14 @@ static void do_data_b3_req(struct gigaset_capi_ctr *iif, return; } - /* DATA_B3_CONF reply will be sent by gigaset_skb_sent() */ - /* - * ToDo: honor unset "delivery confirmation" bit - * (send DATA_B3_CONF immediately?) + * DATA_B3_CONF will be sent by gigaset_skb_sent() only if "delivery + * confirmation" bit is set; otherwise we have to send it now */ + if (!(flags & CAPI_FLAGS_DELIVERY_CONFIRMATION)) + send_data_b3_conf(cs, &iif->ctr, ap->id, msgid, channel, handle, + flags ? CapiFlagsNotSupportedByProtocol + : CAPI_NOERROR); } /* |