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- more 3c562 magic; document that the 0x88 tuple only works in 3c562a-c

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and not in d where it goes back to use the eeprom method. So we detect
  when the tuple method fails and fall back to the original method.
- even more 3c562 magic; the updated linux driver mentions that addresses
  0x??00-0x??7f only work instead of the previous...
This commit is contained in:
christos 1998-03-09 21:52:31 +00:00
parent 861d065b3a
commit 441bea9142
1 changed files with 18 additions and 18 deletions
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36
sys/dev/pcmcia/if_ep_pcmcia.c
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@ -1,4 +1,4 @@
/* $NetBSD: if_ep_pcmcia.c,v 1.5 1998/02/01 23:52:25 marc Exp $ */
/* $NetBSD: if_ep_pcmcia.c,v 1.6 1998/03/09 21:52:31 christos Exp $ */
/*
* Copyright (c) 1997 Marc Horowitz. All rights reserved.
@ -204,19 +204,16 @@ ep_pcmcia_attach(parent, self, aux)
printf(": unexpected number of I/O spaces %d should be 1\n",
cfe->num_iospace);
/*
* XXX there's a comment in the linux driver about the io address
* having to be between 0x00 and 0x70 mod 0x100. weird.
*/
if (pa->product == PCMCIA_PRODUCT_3COM_3C562) {
bus_addr_t maxaddr = (pa->pf->sc->iobase + pa->pf->sc->iosize);
for (i = ((pa->pf->sc->iobase % 0x100) <= 0x70)?
pa->pf->sc->iobase:
roundup(pa->pf->sc->iobase, 0x100);
i < maxaddr;
i += ((i % 0x100) == 0x70) ? 0x90 : 0x10) {
for (i = pa->pf->sc->iobase; i < maxaddr; i += 0x10) {
/*
* the 3c562 can only use 0x??00-0x??7f
* according to the Linux driver
*/
if (i & 0x80)
continue;
if (pcmcia_io_alloc(pa->pf, i, cfe->iospace[0].length,
0, &psc->sc_pcioh) == 0)
break;
@ -241,11 +238,15 @@ ep_pcmcia_attach(parent, self, aux)
return;
}
if (pa->product == PCMCIA_PRODUCT_3COM_3C562) {
if (pcmcia_scan_cis(parent, ep_pcmcia_get_enaddr, myla)) {
printf(": can't read ethernet address from CIS\n");
return;
}
enaddr = myla;
/*
* 3c562a-c use this; 3c562d does it in the regular way.
* we might want to check the revision and produce a warning
* in the future.
*/
if (pcmcia_scan_cis(parent, ep_pcmcia_get_enaddr, myla) != 1)
enaddr = NULL;
else
enaddr = myla;
} else {
enaddr = NULL;
}
@ -284,8 +285,7 @@ ep_pcmcia_get_enaddr(tuple, arg)
u_int8_t *myla = arg;
int i;
/* this is 3c562 magic */
/* this is 3c562a-c magic */
if (tuple->code == 0x88) {
if (tuple->length < ETHER_ADDR_LEN)
return (0);