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/*-
* Copyright (c) 2001 Doug Rabson
* 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.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <stand.h>
#include <net.h>
#include <netif.h>
#include <efi.h>
#include <efilib.h>
extern struct netif_driver efi_net;
int
efinet_match(struct netif *nif, void *machdep_hint)
{
return (1);
}
int
efinet_probe(struct netif *nif, void *machdep_hint)
{
return (0);
}
int
efinet_put(struct iodesc *desc, void *pkt, size_t len)
{
EFI_SIMPLE_NETWORK *net = desc->io_netif->nif_devdata;
EFI_STATUS status;
int i;
status = net->Transmit(net, 0, len, pkt, 0, 0, 0);
if (!EFI_ERROR(status))
return len;
else
return -1;
}
int
efinet_get(struct iodesc *desc, void *pkt, size_t len, time_t timeout)
{
EFI_SIMPLE_NETWORK *net = desc->io_netif->nif_devdata;
EFI_STATUS status;
UINTN bufsz;
time_t t;
t = time(0);
while ((time(0) - t) < timeout) {
bufsz = len;
status = net->Receive(net, 0, &bufsz, pkt, 0, 0, 0);
if (status == EFI_SUCCESS)
return bufsz;
if (status != EFI_NOT_READY)
return 0;
}
return 0;
}
void
efinet_init(struct iodesc *desc, void *machdep_hint)
{
struct netif *nif;
EFI_SIMPLE_NETWORK *net;
int i;
nif = desc->io_netif;
net = nif->nif_driver->netif_ifs[nif->nif_unit].dif_private;
desc->io_netif->nif_devdata = net;
net->Start(net);
net->Initialize(net, 0, 0);
bcopy(net->Mode->CurrentAddress.Addr, desc->myea, 6);
desc->xid = 1;
return;
}
void
efinet_init_driver()
{
EFI_STATUS status;
UINTN sz;
static EFI_GUID netid = EFI_SIMPLE_NETWORK_PROTOCOL;
EFI_HANDLE *handles;
int nifs, i;
#define MAX_INTERFACES 4
static struct netif_dif difs[MAX_INTERFACES];
static struct netif_stats stats[MAX_INTERFACES];
sz = 0;
status = BS->LocateHandle(ByProtocol, &netid, 0, &sz, 0);
if (status != EFI_BUFFER_TOO_SMALL)
return;
handles = (EFI_HANDLE *) malloc(sz);
status = BS->LocateHandle(ByProtocol, &netid, 0, &sz, handles);
if (EFI_ERROR(status)) {
free(handles);
return;
}
nifs = sz / sizeof(EFI_HANDLE);
if (nifs > MAX_INTERFACES)
nifs = MAX_INTERFACES;
efi_net.netif_nifs = nifs;
efi_net.netif_ifs = difs;
bzero(stats, sizeof(stats));
for (i = 0; i < nifs; i++) {
struct netif_dif *dif = &efi_net.netif_ifs[i];
dif->dif_unit = i;
dif->dif_nsel = 1;
dif->dif_stats = &stats[i];
dif->dif_private = handles[i];
BS->HandleProtocol(handles[i], &netid,
(VOID**) &dif->dif_private);
}
return;
}
void
efinet_end(struct netif *nif)
{
EFI_SIMPLE_NETWORK *net = nif->nif_devdata;
net->Shutdown(net);
}
struct netif_driver efi_net = {
"net", /* netif_bname */
efinet_match, /* netif_match */
efinet_probe, /* netif_probe */
efinet_init, /* netif_init */
efinet_get, /* netif_get */
efinet_put, /* netif_put */
efinet_end, /* netif_end */
0, /* netif_ifs */
0 /* netif_nifs */
};
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