63094c199a
Add support for U-Boot. This uses the U-Boot API as developed by Rafal and which is (will be) part of U-Boot 1.3.2 and later. Credits to: raj@
253 lines
6.3 KiB
C
253 lines
6.3 KiB
C
/*-
|
|
* Copyright (c) 2000-2001 Benno Rice
|
|
* Copyright (c) 2007 Semihalf, Rafal Jaworowski <raj@semihalf.com>
|
|
* 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/types.h>
|
|
#include <sys/socket.h>
|
|
|
|
#include <net/if.h>
|
|
#include <netinet/in.h>
|
|
#include <netinet/in_systm.h>
|
|
#include <netinet/if_ether.h>
|
|
#include <netinet/ip.h>
|
|
|
|
#include <stand.h>
|
|
#include <net.h>
|
|
#include <netif.h>
|
|
|
|
#include "api_public.h"
|
|
#include "libuboot.h"
|
|
|
|
#define NETIF_DEBUG
|
|
#define NETIF_VERBOSE_DEBUG
|
|
#undef NETIF_DEBUG
|
|
#undef NETIF_VERBOSE_DEBUG
|
|
|
|
|
|
static int net_probe(struct netif *, void *);
|
|
static int net_match(struct netif *, void *);
|
|
static void net_init(struct iodesc *, void *);
|
|
static int net_get(struct iodesc *, void *, size_t, time_t);
|
|
static int net_put(struct iodesc *, void *, size_t);
|
|
static void net_end(struct netif *);
|
|
|
|
struct device_info * ub_dev_get(int i);
|
|
|
|
extern int devs_no;
|
|
extern struct netif_stats net_stats[];
|
|
|
|
struct netif_dif net_ifs[] = {
|
|
/* dif_unit dif_nsel dif_stats dif_private */
|
|
{ 0, 1, &net_stats[0], 0, },
|
|
};
|
|
|
|
struct netif_stats net_stats[NENTS(net_ifs)];
|
|
|
|
struct netif_driver uboot_net = {
|
|
"uboot_eth", /* netif_bname */
|
|
net_match, /* netif_match */
|
|
net_probe, /* netif_probe */
|
|
net_init, /* netif_init */
|
|
net_get, /* netif_get */
|
|
net_put, /* netif_put */
|
|
net_end, /* netif_end */
|
|
net_ifs, /* netif_ifs */
|
|
NENTS(net_ifs) /* netif_nifs */
|
|
};
|
|
|
|
struct uboot_softc {
|
|
u_int32_t sc_pad;
|
|
u_int8_t sc_rxbuf[ETHER_MAX_LEN];
|
|
u_int8_t sc_txbuf[ETHER_MAX_LEN + PKTALIGN];
|
|
u_int8_t *sc_txbufp;
|
|
int sc_handle; /* device handle for ub_dev_xxx */
|
|
};
|
|
|
|
static struct uboot_softc uboot_softc;
|
|
|
|
static int
|
|
net_match(struct netif *nif, void *machdep_hint)
|
|
{
|
|
char **a = (char **)machdep_hint;
|
|
|
|
if (memcmp("net", *a, 3) == 0)
|
|
return 1;
|
|
|
|
printf("net_match: could not match network device\n");
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
net_probe(struct netif *nif, void *machdep_hint)
|
|
{
|
|
int i;
|
|
struct device_info *di;
|
|
|
|
for (i = 0; i < devs_no; i++)
|
|
if (di = ub_dev_get(i))
|
|
if (di->type == DEV_TYP_NET)
|
|
break;
|
|
if (i == devs_no) {
|
|
printf("net_probe: no network devices found, maybe not\
|
|
enumerated yet..?\n");
|
|
return -1;
|
|
}
|
|
|
|
#if defined(NETIF_DEBUG)
|
|
printf("net_probe: network device found: %d\n", i);
|
|
#endif
|
|
uboot_softc.sc_handle = i;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
net_put(struct iodesc *desc, void *pkt, size_t len)
|
|
{
|
|
struct netif *nif = desc->io_netif;
|
|
struct uboot_softc *sc = nif->nif_devdata;
|
|
|
|
struct ether_header *eh;
|
|
size_t sendlen;
|
|
ssize_t rv;
|
|
|
|
#if defined(NETIF_DEBUG)
|
|
printf("net_put: desc 0x%x, pkt 0x%x, len %d\n", desc, pkt, len);
|
|
eh = pkt;
|
|
printf("dst: %s ", ether_sprintf(eh->ether_dhost));
|
|
printf("src: %s ", ether_sprintf(eh->ether_shost));
|
|
printf("type: 0x%x\n", eh->ether_type & 0xffff);
|
|
#endif
|
|
|
|
if (len < ETHER_MIN_LEN - ETHER_CRC_LEN) {
|
|
sendlen = ETHER_MIN_LEN - ETHER_CRC_LEN;
|
|
bzero(sc->sc_txbufp, sendlen);
|
|
} else
|
|
sendlen = len;
|
|
|
|
memcpy(sc->sc_txbufp, pkt, len);
|
|
|
|
rv = ub_dev_send(sc->sc_handle, sc->sc_txbufp, sendlen);
|
|
|
|
#if defined(NETIF_DEBUG)
|
|
printf("net_put: ub_send returned %d\n", rv);
|
|
#endif
|
|
if (rv == 0)
|
|
rv = len;
|
|
else
|
|
rv = -1;
|
|
|
|
return rv;
|
|
}
|
|
|
|
static int
|
|
net_get(struct iodesc *desc, void *pkt, size_t len, time_t timeout)
|
|
{
|
|
struct netif *nif = desc->io_netif;
|
|
struct uboot_softc *sc = nif->nif_devdata;
|
|
|
|
time_t t;
|
|
int length;
|
|
|
|
#if defined(NETIF_DEBUG)
|
|
printf("net_get: pkt %x, len %d, timeout %d\n", pkt, len,
|
|
timeout);
|
|
#endif
|
|
|
|
t = getsecs();
|
|
do {
|
|
length = ub_dev_recv(sc->sc_handle, sc->sc_rxbuf, len);
|
|
} while ((length == -1 || length == 0) &&
|
|
(getsecs() - t < timeout));
|
|
|
|
#if defined(NETIF_DEBUG)
|
|
printf("net_get: received len %d (%x)\n", length, length);
|
|
#endif
|
|
|
|
if (length > 0) {
|
|
memcpy(pkt, sc->sc_rxbuf, MIN(len, length));
|
|
if (length != len) {
|
|
#if defined(NETIF_DEBUG)
|
|
printf("net_get: len %x, length %x\n", len, length);
|
|
#endif
|
|
}
|
|
return length;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
|
|
static void
|
|
net_init(struct iodesc *desc, void *machdep_hint)
|
|
{
|
|
int i, err;
|
|
struct netif *nif = desc->io_netif;
|
|
struct uboot_softc *sc;
|
|
struct device_info *di;
|
|
|
|
sc = nif->nif_devdata = &uboot_softc;
|
|
|
|
if (err = ub_dev_open(sc->sc_handle))
|
|
panic("%s%d: initialisation failed with error %d\n",
|
|
nif->nif_driver->netif_bname, nif->nif_unit, err);
|
|
|
|
/* Get MAC address */
|
|
di = ub_dev_get(sc->sc_handle);
|
|
memcpy(desc->myea, di->di_net.hwaddr, 6);
|
|
if (memcmp (desc->myea, "\0\0\0\0\0\0", 6) == 0) {
|
|
panic("%s%d: empty ethernet address!",
|
|
nif->nif_driver->netif_bname, nif->nif_unit);
|
|
}
|
|
|
|
#if defined(NETIF_DEBUG)
|
|
printf("network: %s%d attached to %s\n", nif->nif_driver->netif_bname,
|
|
nif->nif_unit, ether_sprintf(desc->myea));
|
|
#endif
|
|
|
|
/* Set correct alignment for TX packets */
|
|
sc->sc_txbufp = sc->sc_txbuf;
|
|
if ((unsigned long)sc->sc_txbufp % PKTALIGN)
|
|
sc->sc_txbufp += PKTALIGN -
|
|
(unsigned long)sc->sc_txbufp % PKTALIGN;
|
|
}
|
|
|
|
|
|
static void
|
|
net_end(struct netif *nif)
|
|
{
|
|
int err;
|
|
struct uboot_softc *sc = nif->nif_devdata;
|
|
|
|
if (err = ub_dev_close(sc->sc_handle))
|
|
panic("%s%d: net_end failed with error %d\n",
|
|
nif->nif_driver->netif_bname, nif->nif_unit, err);
|
|
}
|