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#include "u.h"
#include "lib.h"
#include "mem.h"
#include "dat.h"
#include "fns.h"
#include "io.h"
#include "etherif.h"
static Ctlr ether[MaxEther];
static struct {
char *type;
int (*reset)(Ctlr*);
} cards[] = {
{ "SCC", sccethreset, },
{ "SCC2", sccethreset, },
{ 0, }
};
int
etherinit(void)
{
Ctlr *ctlr;
int ctlrno, i, mask, n;
mask = 0;
for(ctlrno = 0; ctlrno < MaxEther; ctlrno++){
ctlr = ðer[ctlrno];
memset(ctlr, 0, sizeof(Ctlr));
if(archether(ctlrno, &ctlr->card) <= 0)
continue;
for(n = 0; cards[n].type; n++){
if(strcmp(cards[n].type, ctlr->card.type))
continue;
ctlr->ctlrno = ctlrno;
if((*cards[n].reset)(ctlr))
break;
ctlr->iq = qopen(16*1024, 1, 0, 0);
ctlr->oq = qopen(16*1024, 1, 0, 0);
ctlr->present = 1;
mask |= 1<<ctlrno;
print("ether%d: %s: port 0x%luX irq %d",
ctlr->ctlrno, ctlr->card.type, ctlr->card.port, ctlr->card.irq);
if(ctlr->card.mem)
print(" addr 0x%luX", PADDR(ctlr->card.mem));
if(ctlr->card.size)
print(" size 0x%luX", ctlr->card.size);
print(":");
for(i = 0; i < sizeof(ctlr->card.ea); i++)
print(" %2.2uX", ctlr->card.ea[i]);
print("\n"); uartwait();
setvec(VectorPIC + ctlr->card.irq, ctlr->card.intr, ctlr);
break;
}
}
return mask;
}
static Ctlr*
attach(int ctlrno)
{
Ctlr *ctlr;
if(ctlrno >= MaxEther || ether[ctlrno].present == 0)
return 0;
ctlr = ðer[ctlrno];
if(ctlr->present == 1){
ctlr->present = 2;
(*ctlr->card.attach)(ctlr);
}
return ctlr;
}
uchar*
etheraddr(int ctlrno)
{
Ctlr *ctlr;
if((ctlr = attach(ctlrno)) == 0)
return 0;
return ctlr->card.ea;
}
int
etherrxpkt(int ctlrno, Etherpkt *pkt, int timo)
{
int n;
Ctlr *ctlr;
Block *b;
ulong start;
if((ctlr = attach(ctlrno)) == 0)
return 0;
start = m->ticks;
while((b = qget(ctlr->iq)) == 0){
if(TK2MS(m->ticks - start) >= timo){
/*
print("ether%d: rx timeout\n", ctlrno);
*/
return 0;
}
}
n = BLEN(b);
memmove(pkt, b->rp, n);
freeb(b);
return n;
}
int
etheriq(Ctlr *ctlr, Block *b, int freebp)
{
if(memcmp(((Etherpkt*)b->rp)->d, ctlr->card.ea, Eaddrlen) != 0 &&
memcmp(((Etherpkt*)b->rp)->d, broadcast, Eaddrlen) != 0){
if(freebp)
freeb(b);
return 0;
}
qbwrite(ctlr->iq, b);
return 1;
}
int
ethertxpkt(int ctlrno, Etherpkt *pkt, int len, int)
{
Ctlr *ctlr;
Block *b;
int s;
if((ctlr = attach(ctlrno)) == 0)
return 0;
if(qlen(ctlr->oq) > 16*1024){
print("ether%d: tx queue full\n", ctlrno);
return 0;
}
b = iallocb(sizeof(Etherpkt));
memmove(b->wp, pkt, len);
memmove(((Etherpkt*)b->wp)->s, ctlr->card.ea, Eaddrlen);
b->wp += len;
qbwrite(ctlr->oq, b);
s = splhi();
(*ctlr->card.transmit)(ctlr);
splx(s);
return 1;
}
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