177 lines
4.1 KiB
C
177 lines
4.1 KiB
C
/*-
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* Copyright (c) 2001 Doug Rabson
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/param.h>
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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#include <stand.h>
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#include <net.h>
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#include <netif.h>
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#include <efi.h>
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#include <efilib.h>
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extern struct netif_driver efi_net;
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int
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efinet_match(struct netif *nif, void *machdep_hint)
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{
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return (1);
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}
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int
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efinet_probe(struct netif *nif, void *machdep_hint)
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{
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return (0);
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}
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int
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efinet_put(struct iodesc *desc, void *pkt, size_t len)
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{
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EFI_SIMPLE_NETWORK *net = desc->io_netif->nif_devdata;
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EFI_STATUS status;
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int i;
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status = net->Transmit(net, 0, len, pkt, 0, 0, 0);
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if (!EFI_ERROR(status))
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return len;
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else
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return -1;
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}
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int
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efinet_get(struct iodesc *desc, void *pkt, size_t len, time_t timeout)
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{
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EFI_SIMPLE_NETWORK *net = desc->io_netif->nif_devdata;
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EFI_STATUS status;
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UINTN bufsz;
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time_t t;
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t = time(0);
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while ((time(0) - t) < timeout) {
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bufsz = len;
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status = net->Receive(net, 0, &bufsz, pkt, 0, 0, 0);
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if (status == EFI_SUCCESS)
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return bufsz;
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if (status != EFI_NOT_READY)
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return 0;
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}
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return 0;
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}
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void
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efinet_init(struct iodesc *desc, void *machdep_hint)
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{
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struct netif *nif;
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EFI_SIMPLE_NETWORK *net;
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int i;
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nif = desc->io_netif;
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net = nif->nif_driver->netif_ifs[nif->nif_unit].dif_private;
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desc->io_netif->nif_devdata = net;
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net->Start(net);
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net->Initialize(net, 0, 0);
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bcopy(net->Mode->CurrentAddress.Addr, desc->myea, 6);
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desc->xid = 1;
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return;
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}
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void
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efinet_init_driver()
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{
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EFI_STATUS status;
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UINTN sz;
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static EFI_GUID netid = EFI_SIMPLE_NETWORK_PROTOCOL;
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EFI_HANDLE *handles;
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int nifs, i;
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#define MAX_INTERFACES 4
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static struct netif_dif difs[MAX_INTERFACES];
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static struct netif_stats stats[MAX_INTERFACES];
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sz = 0;
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status = BS->LocateHandle(ByProtocol, &netid, 0, &sz, 0);
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if (status != EFI_BUFFER_TOO_SMALL)
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return;
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handles = (EFI_HANDLE *) malloc(sz);
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status = BS->LocateHandle(ByProtocol, &netid, 0, &sz, handles);
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if (EFI_ERROR(status)) {
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free(handles);
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return;
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}
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nifs = sz / sizeof(EFI_HANDLE);
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if (nifs > MAX_INTERFACES)
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nifs = MAX_INTERFACES;
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efi_net.netif_nifs = nifs;
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efi_net.netif_ifs = difs;
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bzero(stats, sizeof(stats));
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for (i = 0; i < nifs; i++) {
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struct netif_dif *dif = &efi_net.netif_ifs[i];
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dif->dif_unit = i;
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dif->dif_nsel = 1;
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dif->dif_stats = &stats[i];
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dif->dif_private = handles[i];
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BS->HandleProtocol(handles[i], &netid,
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(VOID**) &dif->dif_private);
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}
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return;
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}
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void
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efinet_end(struct netif *nif)
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{
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EFI_SIMPLE_NETWORK *net = nif->nif_devdata;
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net->Shutdown(net);
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}
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struct netif_driver efi_net = {
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"net", /* netif_bname */
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efinet_match, /* netif_match */
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efinet_probe, /* netif_probe */
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efinet_init, /* netif_init */
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efinet_get, /* netif_get */
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efinet_put, /* netif_put */
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efinet_end, /* netif_end */
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0, /* netif_ifs */
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0 /* netif_nifs */
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};
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