Submitted by: Juha-Matti Liukkonen (Cubical Solutions Ltd) (jml@cubical.fi)

Add a CAPI (hardware independent) driver i4bcapi(4) and hardware driver
iavc (4) to support active CAPI-based BRI and PRI cards (currently AVM
B1 and T1 cards) to isdn4bsd.

1 files changed, 166 insertions, 0 deletions

diff --git a/sys/i4b/capi/capi_llif.c b/sys/i4b/capi/capi_llif.c
new file mode 100644
index 0000000..a022861
--- /dev/null
+++ b/sys/i4b/capi/capi_llif.c
@@ -0,0 +1,166 @@
+/*
+ * 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.
+ *
+ * $FreeBSD$
+ */
+
+#include "i4bcapi.h"
+#if NI4BCAPI > 0
+
+#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);
+}
+
+#endif /* NI4BCAPI > 0*/