freebsd-dev/sys/i386/eisa/if_fea.c
Eivind Eklund 98b5612b47 malloc(xxx, yyy, M_WAITOK) does not fail. This probably explains why
the bug in the check had never been discovered.
1998-12-09 02:18:53 +00:00

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/*-
* Copyright (c) 1995, 1996 Matt Thomas <matt@3am-software.com>
* 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. The name of the author may not be used to endorse or promote products
* derived from this software withough specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
*
* $Id: if_fea.c,v 1.10 1998/08/24 02:28:15 bde Exp $
*/
/*
* DEC PDQ FDDI Controller
*
* This module support the DEFEA EISA FDDI Controller.
*/
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#if defined(__bsdi__) || defined(__NetBSD__)
#include <sys/device.h>
#endif
#include <net/if.h>
#include <net/if_arp.h>
#if defined(__FreeBSD__)
#include <i386/eisa/eisaconf.h>
#include <dev/pdq/pdqvar.h>
#include <dev/pdq/pdqreg.h>
#elif defined(__bsdi__)
#include <i386/isa/isa.h>
#include <i386/isa/icu.h>
#include <i386/isa/dma.h>
#include <i386/isa/isavar.h>
#include <i386/eisa/eisa.h>
#include <dev/pdq/pdqvar.h>
#include <dev/pdq/pdqreg.h>
#elif defined(__NetBSD__)
#include <machine/cpu.h>
#include <machine/bus.h>
#include <dev/ic/pdqvar.h>
#include <dev/ic/pdqreg.h>
#include <dev/eisa/eisareg.h>
#include <dev/eisa/eisavar.h>
#include <dev/eisa/eisadevs.h>
#endif
/*
*
*/
#define DEFEA_IRQS 0x0000FBA9U
#if defined(__FreeBSD__)
static pdq_softc_t *pdqs_eisa[16];
#define PDQ_EISA_UNIT_TO_SOFTC(unit) (pdqs_eisa[unit])
#define DEFEA_INTRENABLE 0x8 /* level interrupt */
#define pdq_eisa_ifwatchdog NULL
#define DEFEA_DECODE_IRQ(n) ((DEFEA_IRQS >> ((n) << 2)) & 0x0f)
#elif defined(__bsdi__)
extern struct cfdriver feacd;
#define PDQ_EISA_UNIT_TO_SOFTC(unit) ((pdq_softc_t *)feacd.cd_devs[unit])
#define DEFEA_INTRENABLE 0x28 /* edge interrupt */
static const int pdq_eisa_irqs[4] = { IRQ9, IRQ10, IRQ11, IRQ15 };
#define DEFEA_DECODE_IRQ(n) (pdq_eisa_irqs[(n)])
#elif defined(__NetBSD__)
#define DEFEA_INTRENABLE 0x8 /* level interrupt */
#define pdq_eisa_ifwatchdog NULL
#define DEFEA_DECODE_IRQ(n) ((DEFEA_IRQS >> ((n) << 2)) & 0x0f)
#else
#error unknown system
#endif
#ifndef pdq_eisa_ifwatchdog
static ifnet_ret_t
pdq_eisa_ifwatchdog(
int unit)
{
pdq_ifwatchdog(&PDQ_EISA_UNIT_TO_SOFTC(unit)->sc_if);
}
#endif
static void
pdq_eisa_subprobe(
pdq_bus_t bc,
pdq_bus_ioport_t iobase,
pdq_uint32_t *maddr,
pdq_uint32_t *msize,
pdq_uint32_t *irq)
{
if (irq != NULL)
*irq = DEFEA_DECODE_IRQ(PDQ_OS_IORD_8(bc, iobase, PDQ_EISA_IO_CONFIG_STAT_0) & 3);
*maddr = (PDQ_OS_IORD_8(bc, iobase, PDQ_EISA_MEM_ADD_CMP_0) << 8)
| (PDQ_OS_IORD_8(bc, iobase, PDQ_EISA_MEM_ADD_CMP_1) << 16);
*msize = (PDQ_OS_IORD_8(bc, iobase, PDQ_EISA_MEM_ADD_MASK_0) + 4) << 8;
}
static void
pdq_eisa_devinit(
pdq_softc_t *sc)
{
pdq_uint8_t data;
/*
* Do the standard initialization for the DEFEA registers.
*/
PDQ_OS_IOWR_8(sc->sc_bc, sc->sc_iobase, PDQ_EISA_FUNCTION_CTRL, 0x23);
PDQ_OS_IOWR_8(sc->sc_bc, sc->sc_iobase, PDQ_EISA_IO_CMP_1_1, (sc->sc_iobase >> 8) & 0xF0);
PDQ_OS_IOWR_8(sc->sc_bc, sc->sc_iobase, PDQ_EISA_IO_CMP_0_1, (sc->sc_iobase >> 8) & 0xF0);
PDQ_OS_IOWR_8(sc->sc_bc, sc->sc_iobase, PDQ_EISA_SLOT_CTRL, 0x01);
data = PDQ_OS_IORD_8(sc->sc_bc, sc->sc_iobase, PDQ_EISA_BURST_HOLDOFF);
#if defined(PDQ_IOMAPPED)
PDQ_OS_IOWR_8(sc->sc_bc, sc->sc_iobase, PDQ_EISA_BURST_HOLDOFF, data & ~1);
#else
PDQ_OS_IOWR_8(sc->sc_bc, sc->sc_iobase, PDQ_EISA_BURST_HOLDOFF, data | 1);
#endif
data = PDQ_OS_IORD_8(sc->sc_bc, sc->sc_iobase, PDQ_EISA_IO_CONFIG_STAT_0);
PDQ_OS_IOWR_8(sc->sc_bc, sc->sc_iobase, PDQ_EISA_IO_CONFIG_STAT_0, data | DEFEA_INTRENABLE);
}
#if defined(__FreeBSD__)
static void pdq_eisa_shutdown(int howto, void *sc);
static int pdq_eisa_probe(void);
static int pdq_eisa_attach(struct eisa_device *ed);
static unsigned long pdq_eisa_unit;
static struct eisa_driver pdq_eisa_driver = {
"fea", pdq_eisa_probe, pdq_eisa_attach, NULL, &pdq_eisa_unit
};
DATA_SET(eisadriver_set, pdq_eisa_driver);
static const char *
pdq_eisa_match(
eisa_id_t type)
{
if ((type >> 8) == 0x10a330)
return ("DEC DEFEA EISA FDDI Controller");
return NULL;
}
static int
pdq_eisa_probe(
void)
{
struct eisa_device *ed = NULL;
int count;
for (count = 0; (ed = eisa_match_dev(ed, pdq_eisa_match)) != NULL; count++) {
pdq_bus_ioport_t iobase = ed->ioconf.slot * EISA_SLOT_SIZE;
pdq_uint32_t irq, maddr, msize;
eisa_add_iospace(ed, iobase, 0x200, RESVADDR_NONE);
pdq_eisa_subprobe(PDQ_BUS_EISA, iobase, &maddr, &msize, &irq);
eisa_add_mspace(ed, maddr, msize, RESVADDR_NONE);
eisa_add_intr(ed, irq);
eisa_registerdev(ed, &pdq_eisa_driver);
}
return count;
}
static void
pdq_eisa_interrupt(
void *arg)
{
pdq_softc_t * const sc = (pdq_softc_t *) arg;
(void) pdq_interrupt(sc->sc_pdq);
}
static int
pdq_eisa_attach(
struct eisa_device *ed)
{
pdq_softc_t *sc;
resvaddr_t *iospace;
resvaddr_t *mspace;
int irq;
if (TAILQ_FIRST(&ed->ioconf.irqs) == NULL)
return (-1);
irq = TAILQ_FIRST(&ed->ioconf.irqs)->irq_no;
sc = malloc(sizeof(*sc), M_DEVBUF, M_WAITOK);
pdqs_eisa[ed->unit] = sc;
bzero(sc, sizeof(pdq_softc_t)); /* Zero out the softc*/
sc->sc_if.if_name = "fea";
sc->sc_if.if_unit = ed->unit;
if ((iospace = ed->ioconf.ioaddrs.lh_first) == NULL) {
printf("fea%d: no iospace??\n", sc->sc_if.if_unit);
return -1;
}
if ((mspace = ed->ioconf.maddrs.lh_first) == NULL) {
printf("fea%d: no memory space??\n", sc->sc_if.if_unit);
return -1;
}
sc->sc_iobase = (pdq_bus_ioport_t) iospace->addr;
sc->sc_membase = (pdq_bus_memaddr_t) pmap_mapdev(mspace->addr, mspace->size);
if (sc->sc_membase == NULL) {
printf("fea%d: failed to map memory 0x%lx-0x%lx!\n",
sc->sc_if.if_unit, mspace->addr, mspace->addr + mspace->size - 1);
return -1;
}
eisa_reg_start(ed);
if (eisa_reg_iospace(ed, iospace)) {
printf("fea%d: failed to register iospace 0x%lx-0x%lx!\n",
sc->sc_if.if_unit, iospace->addr, iospace->addr + iospace->size - 1);
return -1;
}
if (eisa_reg_mspace(ed, mspace)) {
printf("fea%d: failed to register memory 0x%lx-0x%lx!\n",
sc->sc_if.if_unit, mspace->addr, mspace->addr + mspace->size - 1);
return -1;
}
if (eisa_reg_intr(ed, irq, pdq_eisa_interrupt, sc, &net_imask, 1)) {
printf("fea%d: interrupt registration failed\n", sc->sc_if.if_unit);
return -1;
}
eisa_reg_end(ed);
pdq_eisa_devinit(sc);
sc->sc_pdq = pdq_initialize(PDQ_BUS_EISA, sc->sc_membase,
sc->sc_if.if_name, sc->sc_if.if_unit,
(void *) sc, PDQ_DEFEA);
if (sc->sc_pdq == NULL) {
printf("fea%d: initialization failed\n", sc->sc_if.if_unit);
return -1;
}
if (eisa_enable_intr(ed, irq)) {
printf("fea%d: failed to enable interrupt\n", sc->sc_if.if_unit);
return -1;
}
bcopy((caddr_t) sc->sc_pdq->pdq_hwaddr.lanaddr_bytes, sc->sc_ac.ac_enaddr, 6);
pdq_ifattach(sc, pdq_eisa_ifwatchdog);
at_shutdown(pdq_eisa_shutdown, (void *) sc, SHUTDOWN_POST_SYNC);
return 0;
}
static void
pdq_eisa_shutdown(
int howto,
void *sc)
{
pdq_hwreset(((pdq_softc_t *)sc)->sc_pdq);
}
#endif /* __FreeBSD__ */
#if defined(__bsdi__)
static int
pdq_eisa_probe(
struct device *parent,
struct cfdata *cf,
void *aux)
{
struct isa_attach_args *ia = (struct isa_attach_args *) aux;
int slot;
pdq_uint32_t irq, maddr, msize;
if (isa_bustype != BUS_EISA)
return 0;
if ((slot = eisa_match(cf, ia)) == 0)
return 0;
ia->ia_iobase = slot << 12;
ia->ia_iosize = EISA_NPORT;
eisa_slotalloc(slot);
pdq_eisa_subprobe(PDQ_BUS_EISA, ia->ia_iobase, &maddr, &msize, &irq);
if (ia->ia_irq != IRQUNK && irq != ia->ia_irq) {
printf("fea%d: error: desired IRQ of %d does not match device's actual IRQ (%d),\n",
cf->cf_unit,
ffs(ia->ia_irq) - 1, ffs(irq) - 1);
return 0;
}
if (ia->ia_irq == IRQUNK) {
if ((ia->ia_irq = isa_irqalloc(irq)) == 0) {
if ((ia->ia_irq = isa_irqalloc(IRQ9|IRQ10|IRQ11|IRQ15)) == 0) {
printf("fea%d: error: IRQ %d is already in use\n", cf->cf_unit,
ffs(irq) - 1);
return 0;
}
irq = PDQ_OS_IORD_8(PDQ_BUS_EISA, ia->ia_iobase, PDQ_EISA_IO_CONFIG_STAT_0) & ~3;
switch (ia->ia_irq) {
case IRQ9: irq |= 0;
case IRQ10: irq |= 1;
case IRQ11: irq |= 2;
case IRQ15: irq |= 3;
}
PDQ_OS_IOWR_8(PDQ_BUS_EISA, ia->ia_iobase, PDQ_EISA_IO_CONFIG_STAT_0, irq);
}
}
if (maddr == 0) {
printf("fea%d: error: memory not enabled! ECU reconfiguration required\n",
cf->cf_unit);
return 0;
}
/* EISA bus masters don't use host DMA channels */
ia->ia_drq = DRQNONE;
ia->ia_maddr = (caddr_t) maddr;
ia->ia_msize = msize;
return 1;
}
static void
pdq_eisa_attach(
struct device *parent,
struct device *self,
void *aux)
{
pdq_softc_t *sc = (pdq_softc_t *) self;
register struct isa_attach_args *ia = (struct isa_attach_args *) aux;
register struct ifnet *ifp = &sc->sc_if;
sc->sc_if.if_unit = sc->sc_dev.dv_unit;
sc->sc_if.if_name = "fea";
sc->sc_if.if_flags = 0;
sc->sc_iobase = ia->ia_iobase;
pdq_eisa_devinit(sc);
sc->sc_pdq = pdq_initialize(PDQ_BUS_EISA,
(pdq_bus_memaddr_t) ISA_HOLE_VADDR(ia->ia_maddr),
sc->sc_if.if_name, sc->sc_if.if_unit,
(void *) sc, PDQ_DEFEA);
if (sc->sc_pdq == NULL) {
printf("fea%d: initialization failed\n", sc->sc_if.if_unit);
return;
}
bcopy((caddr_t) sc->sc_pdq->pdq_hwaddr.lanaddr_bytes, sc->sc_ac.ac_enaddr, 6);
pdq_ifattach(sc, pdq_eisa_ifwatchdog);
isa_establish(&sc->sc_id, &sc->sc_dev);
sc->sc_ih.ih_fun = pdq_interrupt;
sc->sc_ih.ih_arg = (void *) sc->sc_pdq;
intr_establish(ia->ia_irq, &sc->sc_ih, DV_NET);
sc->sc_ats.func = (void (*)(void *)) pdq_hwreset;
sc->sc_ats.arg = (void *) sc->sc_pdq;
atshutdown(&sc->sc_ats, ATSH_ADD);
}
static char *pdq_eisa_ids[] = {
"DEC3001", /* 0x0130A310 */
"DEC3002", /* 0x0230A310 */
"DEC3003", /* 0x0330A310 */
"DEC3004", /* 0x0430A310 */
};
struct cfdriver feacd = {
0, "fea", pdq_eisa_probe, pdq_eisa_attach, DV_IFNET, sizeof(pdq_softc_t),
pdq_eisa_ids
};
#endif /* __bsdi__ */
#if defined(__NetBSD__)
static int
pdq_eisa_match(
struct device *parent,
void *match,
void *aux)
{
const struct eisa_attach_args * const ea = (struct eisa_attach_args *) aux;
if (strncmp(ea->ea_idstring, "DEC300", 6) == 0)
return 1;
return 0;
}
static void
pdq_eisa_attach(
struct device *parent,
struct device *self,
void *aux)
{
pdq_softc_t * const sc = (pdq_softc_t *) self;
struct eisa_attach_args * const ea = (struct eisa_attach_args *) aux;
pdq_uint32_t irq, maddr, msize;
eisa_intr_handle_t ih;
const char *intrstr;
sc->sc_bc = ea->ea_bc;
bcopy(sc->sc_dev.dv_xname, sc->sc_if.if_xname, IFNAMSIZ);
sc->sc_if.if_flags = 0;
sc->sc_if.if_softc = sc;
if (bus_io_map(sc->sc_bc, EISA_SLOT_ADDR(ea->ea_slot), EISA_SLOT_SIZE, &sc->sc_iobase)) {
printf("\n%s: failed to map I/O!\n", sc->sc_dev.dv_xname);
return;
}
pdq_eisa_subprobe(sc->sc_bc, sc->sc_iobase, &maddr, &msize, &irq);
#if !defined(PDQ_IOMAPPED)
if (maddr == 0 || msize == 0) {
printf("\n%s: error: memory not enabled! ECU reconfiguration required\n",
sc->sc_dev.dv_xname);
return;
}
if (bus_mem_map(sc->sc_bc, maddr, msize, 0, &sc->sc_membase)) {
bus_io_unmap(sc->sc_bc, sc->sc_iobase, EISA_SLOT_SIZE);
printf("\n%s: failed to map memory (0x%x-0x%x)!\n",
sc->sc_dev.dv_xname, maddr, maddr + msize - 1);
return;
}
#endif
pdq_eisa_devinit(sc);
sc->sc_pdq = pdq_initialize(sc->sc_bc, sc->sc_membase,
sc->sc_if.if_xname, 0,
(void *) sc, PDQ_DEFEA);
if (sc->sc_pdq == NULL) {
printf("%s: initialization failed\n", sc->sc_dev.dv_xname);
return;
}
bcopy((caddr_t) sc->sc_pdq->pdq_hwaddr.lanaddr_bytes, sc->sc_ac.ac_enaddr, 6);
pdq_ifattach(sc, pdq_eisa_ifwatchdog);
if (eisa_intr_map(ea->ea_ec, irq, &ih)) {
printf("%s: couldn't map interrupt (%d)\n", sc->sc_dev.dv_xname, irq);
return;
}
intrstr = eisa_intr_string(ea->ea_ec, ih);
sc->sc_ih = eisa_intr_establish(ea->ea_ec, ih, IST_LEVEL, IPL_NET,
(int (*)(void *)) pdq_interrupt, sc->sc_pdq);
if (sc->sc_ih == NULL) {
printf("%s: couldn't establish interrupt", sc->sc_dev.dv_xname);
if (intrstr != NULL)
printf(" at %s", intrstr);
printf("\n");
return;
}
sc->sc_ats = shutdownhook_establish((void (*)(void *)) pdq_hwreset, sc->sc_pdq);
if (sc->sc_ats == NULL)
printf("%s: warning: couldn't establish shutdown hook\n", self->dv_xname);
#if !defined(PDQ_IOMAPPED)
printf("%s: using iomem 0x%x-0x%x\n", sc->sc_dev.dv_xname, maddr, maddr + msize - 1);
#endif
if (intrstr != NULL)
printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
}
struct cfattach fea_ca = {
sizeof(pdq_softc_t), pdq_eisa_match, pdq_eisa_attach
};
struct cfdriver fea_cd = {
0, "fea", DV_IFNET
};
#endif