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/*
* Copyright (c) 2001 Cubical Solutions Ltd. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* capi/capi_llif.c The i4b CAPI link layer interface.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <net/if.h>
#include <machine/i4b_debug.h>
#include <machine/i4b_ioctl.h>
#include <machine/i4b_cause.h>
#include <i4b/include/i4b_l3l4.h>
#include <i4b/include/i4b_mbuf.h>
#include <i4b/include/i4b_global.h>
#include <i4b/layer4/i4b_l4.h>
#include <i4b/capi/capi.h>
#include <i4b/capi/capi_msgs.h>
/*
// capi_ll_control
// CAPI link layer control routine. Called by a link layer
// driver when its state changes.
*/
int
capi_ll_control(capi_softc_t *sc, int op, int arg)
{
switch (op) {
case CAPI_CTRL_READY:
if (arg) {
sc->sc_state = C_READY;
/*
* Register our CAPI ApplId and send CAPI_LISTEN_REQ
* with CIP Mask value 1 (match all).
*/
sc->reg_appl(sc, I4BCAPI_APPLID, sc->sc_nbch);
capi_listen_req(sc, 0x10007);
} else {
sc->sc_state = C_DOWN;
/* XXX go through cds and notify L4 of pdeact? XXX */
}
break;
case CAPI_CTRL_PROFILE:
bcopy((char*) arg, &sc->sc_profile, sizeof(sc->sc_profile));
break;
case CAPI_CTRL_NEW_NCCI:
case CAPI_CTRL_FREE_NCCI:
/* We ignore the controller's NCCI notifications. */
break;
default:
printf("capi%d: unknown control %d\n", sc->sc_unit, op);
}
return 0;
}
/*
// i4b_capi_handlers
// Array of message-handler pairs used to dispatch CAPI
// messages sent to I4BCAPI_APPLID.
*/
static struct capi_cmdtab {
u_int16_t cmd;
void (*handler)(capi_softc_t *, struct mbuf *);
} i4b_capi_handlers[] = {
{ CAPI_LISTEN_CONF, capi_listen_conf },
{ CAPI_INFO_IND, capi_info_ind },
{ CAPI_ALERT_CONF, capi_alert_conf },
{ CAPI_CONNECT_CONF, capi_connect_conf },
{ CAPI_CONNECT_IND, capi_connect_ind },
{ CAPI_CONNECT_ACTIVE_IND, capi_connect_active_ind },
{ CAPI_CONNECT_B3_CONF, capi_connect_b3_conf },
{ CAPI_CONNECT_B3_IND, capi_connect_b3_ind },
{ CAPI_CONNECT_B3_ACTIVE_IND, capi_connect_b3_active_ind },
{ CAPI_DATA_B3_CONF, capi_data_b3_conf },
{ CAPI_DATA_B3_IND, capi_data_b3_ind },
{ CAPI_DISCONNECT_B3_IND, capi_disconnect_b3_ind },
{ CAPI_DISCONNECT_CONF, capi_disconnect_conf },
{ CAPI_DISCONNECT_IND, capi_disconnect_ind },
{ 0, 0 }
};
/*
// capi_ll_receive
// CAPI link layer receive upcall. Called by a link layer
// driver to dispatch incoming CAPI messages.
*/
int
capi_ll_receive(capi_softc_t *sc, struct mbuf *m)
{
u_int8_t *p = mtod(m, u_int8_t*);
u_int16_t len, applid, msgid, cmd;
capimsg_getu16(p + 0, &len);
capimsg_getu16(p + 2, &applid);
capimsg_getu16(p + 4, &cmd);
capimsg_getu16(p + 6, &msgid);
#if 0
printf("capi%d: ll_receive hdr %04x %04x %04x %04x\n", sc->sc_unit,
len, applid, cmd, msgid);
#endif
if (applid == I4BCAPI_APPLID) {
struct capi_cmdtab *e;
for (e = i4b_capi_handlers; e->cmd && e->cmd != cmd; e++);
if (e->cmd) (*e->handler)(sc, m);
else printf("capi%d: unknown message %04x\n", sc->sc_unit, cmd);
} else {
/* XXX we could handle arbitrary ApplIds here XXX */
printf("capi%d: message %04x for unknown applid %d\n", sc->sc_unit,
cmd, applid);
}
if (m->m_next) {
i4b_Bfreembuf(m->m_next);
m->m_next = NULL;
}
i4b_Dfreembuf(m);
return(0);
}
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