File: [local] / sys / netnatm / natm_pcb.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:15:55 2008 UTC (16 years, 4 months ago) by nbrk
Branch: OPENBSD_4_2_BASE, MAIN
CVS Tags: jornada-partial-support-wip, HEAD Changes since 1.1: +0 -0 lines
Import of OpenBSD 4.2 release kernel tree with initial code to support
Jornada 720/728, StrongARM 1110-based handheld PC.
At this point kernel roots on NFS and boots into vfs_mountroot() and traps.
What is supported:
- glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode
(needs some palette tweaks for non black/white/blue colors, i think)
- saic, SA11x0 interrupt controller (needs cleanup)
- sacom, SA11x0 UART (supported only as boot console for now)
- SA11x0 GPIO controller fully supported (but can't handle multiple interrupt
handlers on one gpio pin)
- sassp, SSP port on SA11x0 that attaches spibus
- Jornada microcontroller (jmcu) to control kbd, battery, etc throught
the SPI bus (wskbd attaches on jmcu, but not tested)
- tod functions seem work
- initial code for SA-1111 (chip companion) : this is TODO
Next important steps, i think:
- gpio and intc on sa1111
- pcmcia support for sa11x0 (and sa1111 help logic)
- REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs)
- root on wd0! (using already supported PCMCIA-ATA)
|
/* $OpenBSD: natm_pcb.c,v 1.7 2006/03/05 21:48:57 miod Exp $ */
/*
*
* Copyright (c) 1996 Charles D. Cranor and Washington University.
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Charles D. Cranor and
* Washington University.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
*/
/*
* atm_pcb.c: manage atm protocol control blocks and keep IP and NATM
* from trying to use each other's VCs.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/queue.h>
#include <sys/socket.h>
#include <sys/protosw.h>
#include <sys/domain.h>
#include <sys/mbuf.h>
#include <sys/malloc.h>
#include <net/if.h>
#include <net/radix.h>
#include <net/route.h>
#include <netinet/in.h>
#include <netnatm/natm.h>
/*
* npcb_alloc: allocate a npcb [in the free state]
*/
struct natmpcb *npcb_alloc(wait)
int wait;
{
struct natmpcb *npcb;
MALLOC(npcb, struct natmpcb *, sizeof(*npcb), M_PCB, wait);
if (npcb) {
bzero(npcb, sizeof(*npcb));
npcb->npcb_flags = NPCB_FREE;
}
return(npcb);
}
/*
* npcb_free: free a npcb
*/
void npcb_free(npcb, op)
struct natmpcb *npcb;
int op;
{
int s = splnet();
if ((npcb->npcb_flags & NPCB_FREE) == 0) {
LIST_REMOVE(npcb, pcblist);
npcb->npcb_flags = NPCB_FREE;
}
if (op == NPCB_DESTROY) {
if (npcb->npcb_inq) {
npcb->npcb_flags = NPCB_DRAIN; /* flag for distruction */
} else {
FREE(npcb, M_PCB); /* kill it! */
}
}
splx(s);
}
/*
* npcb_add: add or remove npcb from main list
* returns npcb if ok
*/
struct natmpcb *npcb_add(npcb, ifp, vci, vpi)
struct natmpcb *npcb;
struct ifnet *ifp;
u_int16_t vci;
u_int8_t vpi;
{
struct natmpcb *cpcb = NULL; /* current pcb */
int s = splnet();
/*
* lookup required
*/
LIST_FOREACH(cpcb, &natm_pcbs, pcblist) {
if (ifp == cpcb->npcb_ifp && vci == cpcb->npcb_vci && vpi == cpcb->npcb_vpi)
break;
}
/*
* add & something already there?
*/
if (cpcb) {
cpcb = NULL;
goto done; /* fail */
}
/*
* need to allocate a pcb?
*/
if (npcb == NULL) {
cpcb = npcb_alloc(M_NOWAIT); /* could be called from lower half */
if (cpcb == NULL)
goto done; /* fail */
} else {
cpcb = npcb;
}
cpcb->npcb_ifp = ifp;
cpcb->ipaddr.s_addr = 0;
cpcb->npcb_vci = vci;
cpcb->npcb_vpi = vpi;
cpcb->npcb_flags = NPCB_CONNECTED;
LIST_INSERT_HEAD(&natm_pcbs, cpcb, pcblist);
done:
splx(s);
return(cpcb);
}
#ifdef DDB
int npcb_dump(void);
int npcb_dump()
{
struct natmpcb *cpcb;
printf("npcb dump:\n");
LIST_FOREACH(cpcb, &natm_pcbs, pcblist) {
printf("if=%s, vci=%d, vpi=%d, IP=0x%x, sock=%p, flags=0x%x, inq=%d\n",
cpcb->npcb_ifp->if_xname, cpcb->npcb_vci, cpcb->npcb_vpi,
cpcb->ipaddr.s_addr, cpcb->npcb_socket,
cpcb->npcb_flags, cpcb->npcb_inq);
}
printf("done\n");
return(0);
}
#endif