FreeBSD-5.3/sys/dev/ex/if_ex_isa.c
/*-
* Copyright (c) 2000 Matthew N. Dodd
* 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. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: src/sys/dev/ex/if_ex_isa.c,v 1.10 2004/06/28 16:38:53 imp Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <net/if_media.h>
#include <isa/isavar.h>
#include <isa/pnpvar.h>
#include <dev/ex/if_exreg.h>
#include <dev/ex/if_exvar.h>
/* Bus Front End Functions */
static void ex_isa_identify(driver_t *, device_t);
static int ex_isa_probe(device_t);
static int ex_isa_attach(device_t);
static int ex_look_for_card(struct ex_softc *);
#if 0
static void ex_pnp_wakeup(void *);
SYSINIT(ex_pnpwakeup, SI_SUB_CPU, SI_ORDER_ANY, ex_pnp_wakeup, NULL);
#endif
static device_method_t ex_isa_methods[] = {
/* Device interface */
DEVMETHOD(device_identify, ex_isa_identify),
DEVMETHOD(device_probe, ex_isa_probe),
DEVMETHOD(device_attach, ex_isa_attach),
DEVMETHOD(device_detach, ex_detach),
{ 0, 0 }
};
static driver_t ex_isa_driver = {
"ex",
ex_isa_methods,
sizeof(struct ex_softc),
};
DRIVER_MODULE(ex, isa, ex_isa_driver, ex_devclass, 0, 0);
static struct isa_pnp_id ex_ids[] = {
{ 0x3110d425, NULL }, /* INT1031 */
{ 0x3010d425, NULL }, /* INT1030 */
{ 0, NULL },
};
#if 0
#define EX_PNP_WAKE 0x279
static uint8_t ex_pnp_wake_seq[] =
{ 0x6A, 0xB5, 0xDA, 0xED, 0xF6, 0xFB, 0x7D, 0xBE,
0xDF, 0x6F, 0x37, 0x1B, 0x0D, 0x86, 0xC3, 0x61,
0xB0, 0x58, 0x2C, 0x16, 0x8B, 0x45, 0xA2, 0xD1,
0xE8, 0x74, 0x3A, 0x9D, 0xCE, 0xE7, 0x73, 0x43 };
static void
ex_pnp_wakeup (void * dummy)
{
int tmp;
if (bootverbose)
printf("ex_pnp_wakeup()\n");
outb(EX_PNP_WAKE, 0);
outb(EX_PNP_WAKE, 0);
for (tmp = 0; tmp < 32; tmp++) {
outb(EX_PNP_WAKE, ex_pnp_wake_seq[tmp]);
}
}
#endif
/*
* Non-destructive identify.
*/
static void
ex_isa_identify(driver_t *driver, device_t parent)
{
device_t child;
bus_addr_t ioport;
u_char enaddr[6];
u_int irq;
int tmp;
const char * desc;
struct ex_softc sc;
struct resource *res;
int rid;
if (bootverbose)
printf("ex_isa_identify()\n");
for (ioport = 0x200; ioport < 0x3a0; ioport += 0x10) {
rid = 0;
res = bus_alloc_resource(parent, SYS_RES_IOPORT, &rid,
ioport, ioport, 0x10, RF_ACTIVE);
if (res == NULL)
continue;
sc.bst = rman_get_bustag(res);
sc.bsh = rman_get_bushandle(res);
/* No board found at address */
if (!ex_look_for_card(&sc)) {
bus_release_resource(parent, SYS_RES_IOPORT, rid, res);
continue;
}
if (bootverbose)
printf("ex: Found card at 0x%03lx!\n", (unsigned long)ioport);
/* Board in PnP mode */
if (ex_eeprom_read(&sc, EE_W0) & EE_W0_PNP) {
/* Reset the card. */
CSR_WRITE_1(&sc, CMD_REG, Reset_CMD);
DELAY(500);
if (bootverbose)
printf("ex: card at 0x%03lx in PnP mode!\n", (unsigned long)ioport);
bus_release_resource(parent, SYS_RES_IOPORT, rid, res);
continue;
}
bzero(enaddr, sizeof(enaddr));
/* Reset the card. */
CSR_WRITE_1(&sc, CMD_REG, Reset_CMD);
DELAY(400);
ex_get_address(&sc, enaddr);
tmp = ex_eeprom_read(&sc, EE_W1) & EE_W1_INT_SEL;
/* work out which set of irq <-> internal tables to use */
if (ex_card_type(enaddr) == CARD_TYPE_EX_10_PLUS) {
irq = plus_ee2irqmap[tmp];
desc = "Intel Pro/10+";
} else {
irq = ee2irqmap[tmp];
desc = "Intel Pro/10";
}
bus_release_resource(parent, SYS_RES_IOPORT, rid, res);
child = BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, "ex", -1);
device_set_desc_copy(child, desc);
device_set_driver(child, driver);
bus_set_resource(child, SYS_RES_IRQ, 0, irq, 1);
bus_set_resource(child, SYS_RES_IOPORT, 0, ioport, EX_IOSIZE);
if (bootverbose)
printf("ex: Adding board at 0x%03lx, irq %d\n",
(unsigned long)ioport, irq);
}
return;
}
static int
ex_isa_probe(device_t dev)
{
bus_addr_t iobase;
u_int irq;
char * irq2ee;
u_char * ee2irq;
u_char enaddr[6];
int tmp;
int error;
struct ex_softc *sc = device_get_softc(dev);
/* Check isapnp ids */
error = ISA_PNP_PROBE(device_get_parent(dev), dev, ex_ids);
/* If the card had a PnP ID that didn't match any we know about */
if (error == ENXIO)
return(error);
/* If we had some other problem. */
if (!(error == 0 || error == ENOENT))
return(error);
error = ex_alloc_resources(dev);
if (error != 0)
goto bad;
iobase = bus_get_resource_start(dev, SYS_RES_IOPORT, 0);
if (!ex_look_for_card(sc)) {
if (bootverbose)
printf("ex: no card found at 0x%03lx.\n", (unsigned long)iobase);
error = ENXIO;
goto bad;
}
if (bootverbose)
printf("ex: ex_isa_probe() found card at 0x%03lx\n", (unsigned long)iobase);
/*
* Reset the card.
*/
CSR_WRITE_1(sc, CMD_REG, Reset_CMD);
DELAY(800);
ex_get_address(sc, enaddr);
/* work out which set of irq <-> internal tables to use */
if (ex_card_type(enaddr) == CARD_TYPE_EX_10_PLUS) {
irq2ee = plus_irq2eemap;
ee2irq = plus_ee2irqmap;
} else {
irq2ee = irq2eemap;
ee2irq = ee2irqmap;
}
tmp = ex_eeprom_read(sc, EE_W1) & EE_W1_INT_SEL;
irq = bus_get_resource_start(dev, SYS_RES_IRQ, 0);
if (irq > 0) {
/* This will happen if board is in PnP mode. */
if (ee2irq[tmp] != irq) {
printf("ex: WARNING: board's EEPROM is configured"
" for IRQ %d, using %d\n",
ee2irq[tmp], irq);
}
} else {
irq = ee2irq[tmp];
bus_set_resource(dev, SYS_RES_IRQ, 0, irq, 1);
}
if (irq == 0) {
printf("ex: invalid IRQ.\n");
error = ENXIO;
}
bad:;
ex_release_resources(dev);
return(error);
}
static int
ex_isa_attach(device_t dev)
{
struct ex_softc * sc = device_get_softc(dev);
int error = 0;
uint16_t temp;
sc->dev = dev;
sc->ioport_rid = 0;
sc->irq_rid = 0;
if ((error = ex_alloc_resources(dev)) != 0) {
device_printf(dev, "ex_alloc_resources() failed!\n");
goto bad;
}
/*
* Fill in several fields of the softc structure:
* - I/O base address.
* - Hardware Ethernet address.
* - IRQ number (if not supplied in config file, read it from EEPROM).
* - Connector type.
*/
sc->irq_no = rman_get_start(sc->irq);
ex_get_address(sc, sc->arpcom.ac_enaddr);
temp = ex_eeprom_read(sc, EE_W0);
device_printf(sc->dev, "%s config, %s bus, ",
(temp & EE_W0_PNP) ? "PnP" : "Manual",
(temp & EE_W0_BUS16) ? "16-bit" : "8-bit");
temp = ex_eeprom_read(sc, EE_W6);
printf("board id 0x%03x, stepping 0x%01x\n",
(temp & EE_W6_BOARD_MASK) >> EE_W6_BOARD_SHIFT,
temp & EE_W6_STEP_MASK);
if ((error = ex_attach(dev)) != 0) {
device_printf(dev, "ex_attach() failed!\n");
goto bad;
}
error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET,
ex_intr, (void *)sc, &sc->ih);
if (error) {
device_printf(dev, "bus_setup_intr() failed!\n");
goto bad;
}
return(0);
bad:
ex_release_resources(dev);
return (error);
}
static int
ex_look_for_card(struct ex_softc *sc)
{
int count1, count2;
/*
* Check for the i82595 signature, and check that the round robin
* counter actually advances.
*/
if (((count1 = CSR_READ_1(sc, ID_REG)) & Id_Mask) != Id_Sig)
return(0);
count2 = CSR_READ_1(sc, ID_REG);
count2 = CSR_READ_1(sc, ID_REG);
count2 = CSR_READ_1(sc, ID_REG);
return((count2 & Counter_bits) == ((count1 + 0xc0) & Counter_bits));
}