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/* $OpenBSD: if_rln_isa.c,v 1.2 2002/03/14 01:26:56 millert Exp $ */
/*
* David Leonard <d@openbsd.org>, 1999. Public domain.
*
* RangeLAN2 ISA card.
*
* The DIP switch settings on the card to set the i/o base address are
*
* addr: 1 2 3 4 5 6 7 ['X' = on = down = towards the red/green leds]
* 100: - - - - - X -
* 120: - - X - - X -
* 140: - - - X - X -
* 218: X X - - - - X
* 270: - X X X - - X [default]
* 280: - - - - X - X
* 290: - X - - X - X
* 298: X X - - X - X
* 2a0: - - X - X - X
* 2a8: X - X - X - X
* 2e0: - - X X X - X
* 300: - - - - - X X
* 310: - X - - - X X
* 358: X X - X - X X
* 360: - - X X - X X
* 368: X - X X - X X
*
* PnP:
* PXM0100 "Symphony Cordless PnP ISA Card"
*/
#include "bpfilter.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/socket.h>
#include <sys/device.h>
#include <sys/queue.h>
#include <net/if.h>
#ifdef INET
#include <netinet/in.h>
#include <netinet/if_ether.h>
#endif
#include <machine/cpu.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <dev/ic/rln.h>
#include <dev/ic/rlnvar.h>
#include <dev/ic/rlnreg.h>
#include <dev/isa/isavar.h>
static int rln_isa_probe(struct device *, void *, void *);
static void rln_isa_attach(struct device *, struct device *, void *);
struct cfattach rln_isa_ca = {
sizeof(struct rln_softc), rln_isa_probe, rln_isa_attach
};
static const int rln_irq[] = {
3, 4, 5, 7, 10, 11, 12, 15
};
#define NRLN_IRQ (sizeof(rln_irq) / sizeof(rln_irq[0]))
static int
rln_isa_probe(parent, match, aux)
struct device *parent;
void *match, *aux;
{
struct isa_attach_args *ia = aux;
struct rln_softc *sc = match;
/*
* The i/o base addr is set by the dip switches
* and must be specified in the kernel config.
*/
if (ia->ia_iobase == IOBASEUNK)
return (0);
/* Attempt a card reset through the io ports */
sc->sc_iot = ia->ia_iot;
sc->sc_width = 0; /* Force width probe */
if (bus_space_map(sc->sc_iot, ia->ia_iobase, RLN_NPORTS, 0,
&sc->sc_ioh))
return (0);
if (rln_reset(sc)) {
bus_space_unmap(sc->sc_iot, sc->sc_ioh, RLN_NPORTS);
return (0);
}
ia->ia_iosize = RLN_NPORTS;
return (1);
}
static void
rln_isa_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct rln_softc *sc = (void *)self;
struct isa_attach_args *ia = aux;
int irq = ia->ia_irq;
int mask;
int i;
if (irq == IRQUNK) {
/* Allocate a valid IRQ. */
mask = 0;
for (i = 0; i < NRLN_IRQ; i++)
mask |= (1 << rln_irq[i]);
if (isa_intr_alloc(ia->ia_ic, mask, IST_EDGE, &irq))
panic("rln_isa_attach: can't allocate irq");
}
#ifdef DIAGNOSTIC
else {
/* Check given IRQ is valid. */
for (i = 0; i < NRLN_IRQ; i++)
if (irq == rln_irq[i])
break;
if (i == NRLN_IRQ)
printf("rln_isa_probe: using invalid irq %d\n", irq);
}
#endif
printf(":");
sc->sc_ih = isa_intr_establish(ia->ia_ic, irq, IST_EDGE,
IPL_NET, rlnintr, sc, sc->sc_dev.dv_xname);
#ifdef DIAGNOSTIC
if (sc->sc_ih == NULL)
panic("rln_isa_attach: couldn't establish interrupt");
#endif
/* Tell the card which IRQ to use. */
sc->sc_irq = irq;
sc->sc_width = 0; /* re-probe width */
printf("%s: RangeLAN2 7100", sc->sc_dev.dv_xname);
rlnconfig(sc);
printf("\n");
}
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