mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-21 11:13:30 +00:00
486 lines
12 KiB
C
486 lines
12 KiB
C
/* $NetBSD: if_en_pci.c,v 1.1 1996/06/22 02:00:31 chuck Exp $ */
|
|
|
|
/*
|
|
*
|
|
* Copyright (c) 1996 Charles D. Cranor and Washington University.
|
|
* 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.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by Charles D. Cranor and
|
|
* Washington University.
|
|
* 4. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
/*
|
|
*
|
|
* i f _ e n _ p c i . c
|
|
*
|
|
* author: Chuck Cranor <chuck@ccrc.wustl.edu>
|
|
* started: spring, 1996.
|
|
*
|
|
* FreeBSD PCI glue for the eni155p card.
|
|
* thanks to Matt Thomas for figuring out FreeBSD vs NetBSD vs etc.. diffs.
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/socket.h>
|
|
|
|
#include <sys/bus.h>
|
|
#include <machine/bus.h>
|
|
#include <sys/rman.h>
|
|
#include <machine/resource.h>
|
|
|
|
#include <net/if.h>
|
|
|
|
#include <pci/pcivar.h>
|
|
#include <pci/pcireg.h>
|
|
|
|
#include <dev/en/midwayreg.h>
|
|
#include <dev/en/midwayvar.h>
|
|
|
|
/*
|
|
* prototypes
|
|
*/
|
|
|
|
static int en_pci_probe __P((device_t));
|
|
static int en_pci_attach __P((device_t));
|
|
static int en_pci_detach __P((device_t));
|
|
static int en_pci_shutdown __P((device_t));
|
|
|
|
/*
|
|
* local structures
|
|
*/
|
|
|
|
struct en_pci_softc {
|
|
/* bus independent stuff */
|
|
struct en_softc esc; /* includes "device" structure */
|
|
|
|
/* freebsd newbus glue */
|
|
struct resource *res; /* resource descriptor for registers */
|
|
struct resource *irq; /* resource descriptor for interrupt */
|
|
void *ih; /* interrupt handle */
|
|
};
|
|
|
|
#if !defined(MIDWAY_ENIONLY)
|
|
static void eni_get_macaddr __P((device_t, struct en_pci_softc *));
|
|
#endif
|
|
#if !defined(MIDWAY_ADPONLY)
|
|
static void adp_get_macaddr __P((struct en_pci_softc *));
|
|
#endif
|
|
|
|
/*
|
|
* local defines (PCI specific stuff)
|
|
*/
|
|
|
|
/*
|
|
* address of config base memory address register in PCI config space
|
|
* (this is card specific)
|
|
*/
|
|
|
|
#define PCI_CBMA 0x10
|
|
|
|
/*
|
|
* tonga (pci bridge). ENI cards only!
|
|
*/
|
|
|
|
#define EN_TONGA 0x60 /* PCI config addr of tonga reg */
|
|
|
|
#define TONGA_SWAP_DMA 0x80 /* endian swap control */
|
|
#define TONGA_SWAP_BYTE 0x40
|
|
#define TONGA_SWAP_WORD 0x20
|
|
|
|
/*
|
|
* adaptec pci bridge. ADP cards only!
|
|
*/
|
|
|
|
#define ADP_PCIREG 0x050040 /* PCI control register */
|
|
|
|
#define ADP_PCIREG_RESET 0x1 /* reset card */
|
|
#define ADP_PCIREG_IENABLE 0x2 /* interrupt enable */
|
|
#define ADP_PCIREG_SWAP_WORD 0x4 /* swap byte on slave access */
|
|
#define ADP_PCIREG_SWAP_DMA 0x8 /* swap byte on DMA */
|
|
|
|
#define PCI_VENDOR_EFFICIENTNETS 0x111a /* Efficent Networks */
|
|
#define PCI_PRODUCT_EFFICIENTNETS_ENI155PF 0x0000 /* ENI-155P ATM */
|
|
#define PCI_PRODUCT_EFFICIENTNETS_ENI155PA 0x0002 /* ENI-155P ATM */
|
|
#define PCI_VENDOR_ADP 0x9004 /* adaptec */
|
|
#define PCI_PRODUCT_ADP_AIC5900 0x5900
|
|
#define PCI_PRODUCT_ADP_AIC5905 0x5905
|
|
#define PCI_VENDOR(x) ((x) & 0xFFFF)
|
|
#define PCI_CHIPID(x) (((x) >> 16) & 0xFFFF)
|
|
|
|
#if !defined(MIDWAY_ENIONLY)
|
|
|
|
static void adp_busreset __P((void *));
|
|
|
|
/*
|
|
* bus specific reset function [ADP only!]
|
|
*/
|
|
|
|
static void adp_busreset(v)
|
|
|
|
void *v;
|
|
|
|
{
|
|
struct en_softc *sc = (struct en_softc *) v;
|
|
u_int32_t dummy;
|
|
|
|
bus_space_write_4(sc->en_memt, sc->en_base, ADP_PCIREG, ADP_PCIREG_RESET);
|
|
DELAY(1000); /* let it reset */
|
|
dummy = bus_space_read_4(sc->en_memt, sc->en_base, ADP_PCIREG);
|
|
bus_space_write_4(sc->en_memt, sc->en_base, ADP_PCIREG,
|
|
(ADP_PCIREG_SWAP_WORD|ADP_PCIREG_SWAP_DMA|ADP_PCIREG_IENABLE));
|
|
dummy = bus_space_read_4(sc->en_memt, sc->en_base, ADP_PCIREG);
|
|
if ((dummy & (ADP_PCIREG_SWAP_WORD|ADP_PCIREG_SWAP_DMA)) !=
|
|
(ADP_PCIREG_SWAP_WORD|ADP_PCIREG_SWAP_DMA))
|
|
printf("adp_busreset: Adaptec ATM did NOT reset!\n");
|
|
}
|
|
#endif
|
|
|
|
/***********************************************************************/
|
|
|
|
/*
|
|
* autoconfig stuff
|
|
*/
|
|
|
|
static int
|
|
en_pci_probe(device_t dev)
|
|
{
|
|
switch (pci_get_vendor(dev)) {
|
|
#if !defined(MIDWAY_ADPONLY)
|
|
case PCI_VENDOR_EFFICIENTNETS:
|
|
switch (pci_get_device(dev)) {
|
|
case PCI_PRODUCT_EFFICIENTNETS_ENI155PF:
|
|
case PCI_PRODUCT_EFFICIENTNETS_ENI155PA:
|
|
device_set_desc(dev, "Efficient Networks ENI-155p");
|
|
return 0;
|
|
}
|
|
break;
|
|
#endif
|
|
#if !defined(MIDWAY_ENIONLY)
|
|
case PCI_VENDOR_ADP:
|
|
switch (pci_get_device(dev)) {
|
|
case PCI_PRODUCT_ADP_AIC5900:
|
|
case PCI_PRODUCT_ADP_AIC5905:
|
|
device_set_desc(dev, "Adaptec 155 ATM");
|
|
return 0;
|
|
}
|
|
break;
|
|
#endif
|
|
}
|
|
return ENXIO;
|
|
}
|
|
|
|
static int
|
|
en_pci_attach(device_t dev)
|
|
{
|
|
struct en_softc *sc;
|
|
struct en_pci_softc *scp;
|
|
u_long val;
|
|
int rid, s, unit, error = 0;
|
|
|
|
sc = device_get_softc(dev);
|
|
scp = (struct en_pci_softc *)sc;
|
|
bzero(scp, sizeof(*scp)); /* zero */
|
|
|
|
s = splimp();
|
|
|
|
/*
|
|
* Enable bus mastering.
|
|
*/
|
|
val = pci_read_config(dev, PCIR_COMMAND, 2);
|
|
val |= (PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN);
|
|
pci_write_config(dev, PCIR_COMMAND, val, 2);
|
|
|
|
/*
|
|
* Map control/status registers.
|
|
*/
|
|
rid = PCI_CBMA;
|
|
scp->res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid,
|
|
0, ~0, 1, RF_ACTIVE);
|
|
if (!scp->res) {
|
|
device_printf(dev, "could not map memory\n");
|
|
error = ENXIO;
|
|
goto fail;
|
|
}
|
|
|
|
sc->en_memt = rman_get_bustag(scp->res);
|
|
sc->en_base = rman_get_bushandle(scp->res);
|
|
|
|
/*
|
|
* Allocate our interrupt.
|
|
*/
|
|
rid = 0;
|
|
scp->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1,
|
|
RF_SHAREABLE | RF_ACTIVE);
|
|
if (scp->irq == NULL) {
|
|
device_printf(dev, "could not map interrupt\n");
|
|
bus_release_resource(dev, SYS_RES_MEMORY, PCI_CBMA, scp->res);
|
|
error = ENXIO;
|
|
goto fail;
|
|
}
|
|
|
|
error = bus_setup_intr(dev, scp->irq, INTR_TYPE_NET,
|
|
en_intr, sc, &scp->ih);
|
|
if (error) {
|
|
device_printf(dev, "could not setup irq\n");
|
|
bus_release_resource(dev, SYS_RES_IRQ, 0, scp->irq);
|
|
bus_release_resource(dev, SYS_RES_MEMORY, PCI_CBMA, scp->res);
|
|
goto fail;
|
|
}
|
|
sc->ipl = 1; /* XXX (required to enable interrupt on midway) */
|
|
|
|
unit = device_get_unit(dev);
|
|
snprintf(sc->sc_dev.dv_xname, sizeof(sc->sc_dev.dv_xname), "en%d", unit);
|
|
sc->enif.if_unit = unit;
|
|
sc->enif.if_name = "en";
|
|
|
|
/* figure out if we are an adaptec card or not */
|
|
sc->is_adaptec = (pci_get_vendor(dev) == PCI_VENDOR_ADP) ? 1 : 0;
|
|
|
|
/*
|
|
* set up pci bridge
|
|
*/
|
|
#if !defined(MIDWAY_ENIONLY)
|
|
if (sc->is_adaptec) {
|
|
adp_get_macaddr(scp);
|
|
sc->en_busreset = adp_busreset;
|
|
adp_busreset(sc);
|
|
}
|
|
#endif
|
|
|
|
#if !defined(MIDWAY_ADPONLY)
|
|
if (!sc->is_adaptec) {
|
|
eni_get_macaddr(dev, scp);
|
|
sc->en_busreset = NULL;
|
|
pci_write_config(dev, EN_TONGA, (TONGA_SWAP_DMA|TONGA_SWAP_WORD), 4);
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* done PCI specific stuff
|
|
*/
|
|
|
|
en_attach(sc);
|
|
|
|
splx(s);
|
|
|
|
return 0;
|
|
|
|
fail:
|
|
splx(s);
|
|
return error;
|
|
}
|
|
|
|
static int
|
|
en_pci_detach(device_t dev)
|
|
{
|
|
struct en_softc *sc = device_get_softc(dev);
|
|
struct en_pci_softc *scp = (struct en_pci_softc *)sc;
|
|
int s;
|
|
|
|
s = splimp();
|
|
|
|
/*
|
|
* Close down routes etc.
|
|
*/
|
|
if_detach(&sc->enif);
|
|
|
|
/*
|
|
* Stop DMA and drop transmit queue.
|
|
*/
|
|
en_reset(sc);
|
|
|
|
/*
|
|
* Deallocate resources.
|
|
*/
|
|
bus_teardown_intr(dev, scp->irq, scp->ih);
|
|
bus_release_resource(dev, SYS_RES_IRQ, 0, scp->irq);
|
|
bus_release_resource(dev, SYS_RES_MEMORY, PCI_CBMA, scp->res);
|
|
|
|
#ifdef notyet
|
|
/*
|
|
* Free all the driver internal resources
|
|
*/
|
|
#endif
|
|
|
|
splx(s);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
en_pci_shutdown(device_t dev)
|
|
{
|
|
struct en_pci_softc *psc = (struct en_pci_softc *)device_get_softc(dev);
|
|
|
|
en_reset(&psc->esc);
|
|
DELAY(10); /* is this necessary? */
|
|
return (0);
|
|
}
|
|
|
|
#if !defined(MIDWAY_ENIONLY)
|
|
|
|
#if defined(sparc)
|
|
#define bus_space_read_1(t, h, o) \
|
|
((void)t, (*(volatile u_int8_t *)((h) + (o))))
|
|
#endif
|
|
|
|
static void
|
|
adp_get_macaddr(scp)
|
|
struct en_pci_softc *scp;
|
|
{
|
|
struct en_softc * sc = (struct en_softc *)scp;
|
|
int lcv;
|
|
|
|
for (lcv = 0; lcv < sizeof(sc->macaddr); lcv++)
|
|
sc->macaddr[lcv] = bus_space_read_1(sc->en_memt, sc->en_base,
|
|
MID_ADPMACOFF + lcv);
|
|
}
|
|
|
|
#endif /* MIDWAY_ENIONLY */
|
|
|
|
#if !defined(MIDWAY_ADPONLY)
|
|
|
|
/*
|
|
* Read station (MAC) address from serial EEPROM.
|
|
* derived from linux drivers/atm/eni.c by Werner Almesberger, EPFL LRC.
|
|
*/
|
|
#define EN_PROM_MAGIC 0x0c
|
|
#define EN_PROM_DATA 0x02
|
|
#define EN_PROM_CLK 0x01
|
|
#define EN_ESI 64
|
|
|
|
static void
|
|
eni_get_macaddr(device_t dev, struct en_pci_softc *scp)
|
|
{
|
|
struct en_softc * sc = (struct en_softc *)scp;
|
|
int i, j, address, status;
|
|
u_int32_t data, t_data;
|
|
u_int8_t tmp;
|
|
|
|
t_data = pci_read_config(dev, EN_TONGA, 4) & 0xffffff00;
|
|
|
|
data = EN_PROM_MAGIC | EN_PROM_DATA | EN_PROM_CLK;
|
|
pci_write_config(dev, EN_TONGA, data, 4);
|
|
|
|
for (i = 0; i < sizeof(sc->macaddr); i ++){
|
|
/* start operation */
|
|
data |= EN_PROM_DATA ;
|
|
pci_write_config(dev, EN_TONGA, data, 4);
|
|
data |= EN_PROM_CLK ;
|
|
pci_write_config(dev, EN_TONGA, data, 4);
|
|
data &= ~EN_PROM_DATA ;
|
|
pci_write_config(dev, EN_TONGA, data, 4);
|
|
data &= ~EN_PROM_CLK ;
|
|
pci_write_config(dev, EN_TONGA, data, 4);
|
|
/* send address with serial line */
|
|
address = ((i + EN_ESI) << 1) + 1;
|
|
for ( j = 7 ; j >= 0 ; j --){
|
|
data = (address >> j) & 1 ? data | EN_PROM_DATA :
|
|
data & ~EN_PROM_DATA;
|
|
pci_write_config(dev, EN_TONGA, data, 4);
|
|
data |= EN_PROM_CLK ;
|
|
pci_write_config(dev, EN_TONGA, data, 4);
|
|
data &= ~EN_PROM_CLK ;
|
|
pci_write_config(dev, EN_TONGA, data, 4);
|
|
}
|
|
/* get ack */
|
|
data |= EN_PROM_DATA ;
|
|
pci_write_config(dev, EN_TONGA, data, 4);
|
|
data |= EN_PROM_CLK ;
|
|
pci_write_config(dev, EN_TONGA, data, 4);
|
|
data = pci_read_config(dev, EN_TONGA, 4);
|
|
status = data & EN_PROM_DATA;
|
|
data &= ~EN_PROM_CLK ;
|
|
pci_write_config(dev, EN_TONGA, data, 4);
|
|
data |= EN_PROM_DATA ;
|
|
pci_write_config(dev, EN_TONGA, data, 4);
|
|
|
|
tmp = 0;
|
|
|
|
for ( j = 7 ; j >= 0 ; j --){
|
|
tmp <<= 1;
|
|
data |= EN_PROM_DATA ;
|
|
pci_write_config(dev, EN_TONGA, data, 4);
|
|
data |= EN_PROM_CLK ;
|
|
pci_write_config(dev, EN_TONGA, data, 4);
|
|
data = pci_read_config(dev, EN_TONGA, 4);
|
|
if(data & EN_PROM_DATA) tmp |= 1;
|
|
data &= ~EN_PROM_CLK ;
|
|
pci_write_config(dev, EN_TONGA, data, 4);
|
|
data |= EN_PROM_DATA ;
|
|
pci_write_config(dev, EN_TONGA, data, 4);
|
|
}
|
|
/* get ack */
|
|
data |= EN_PROM_DATA ;
|
|
pci_write_config(dev, EN_TONGA, data, 4);
|
|
data |= EN_PROM_CLK ;
|
|
pci_write_config(dev, EN_TONGA, data, 4);
|
|
data = pci_read_config(dev, EN_TONGA, 4);
|
|
status = data & EN_PROM_DATA;
|
|
data &= ~EN_PROM_CLK ;
|
|
pci_write_config(dev, EN_TONGA, data, 4);
|
|
data |= EN_PROM_DATA ;
|
|
pci_write_config(dev, EN_TONGA, data, 4);
|
|
|
|
sc->macaddr[i] = tmp;
|
|
}
|
|
/* stop operation */
|
|
data &= ~EN_PROM_DATA;
|
|
pci_write_config(dev, EN_TONGA, data, 4);
|
|
data |= EN_PROM_CLK;
|
|
pci_write_config(dev, EN_TONGA, data, 4);
|
|
data |= EN_PROM_DATA;
|
|
pci_write_config(dev, EN_TONGA, data, 4);
|
|
pci_write_config(dev, EN_TONGA, t_data, 4);
|
|
}
|
|
|
|
#endif /* !MIDWAY_ADPONLY */
|
|
|
|
static device_method_t en_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, en_pci_probe),
|
|
DEVMETHOD(device_attach, en_pci_attach),
|
|
DEVMETHOD(device_detach, en_pci_detach),
|
|
DEVMETHOD(device_shutdown, en_pci_shutdown),
|
|
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static driver_t en_driver = {
|
|
"en",
|
|
en_methods,
|
|
sizeof(struct en_pci_softc),
|
|
};
|
|
|
|
static devclass_t en_devclass;
|
|
|
|
DRIVER_MODULE(if_en, pci, en_driver, en_devclass, 0, 0);
|
|
|