4d2e2437c2
ILMI daemons. Factor out common softc fields for all ATM interfaces that need to be externally visible into an ifatm structure and make the midway driver using this structure and fill the MIB.
482 lines
12 KiB
C
482 lines
12 KiB
C
/* $NetBSD: if_en_pci.c,v 1.1 1996/06/22 02:00:31 chuck Exp $ */
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/*
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*
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* Copyright (c) 1996 Charles D. Cranor and Washington University.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Charles D. Cranor and
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* Washington University.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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*
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* i f _ e n _ p c i . c
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*
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* author: Chuck Cranor <chuck@ccrc.wustl.edu>
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* started: spring, 1996.
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*
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* FreeBSD PCI glue for the eni155p card.
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* thanks to Matt Thomas for figuring out FreeBSD vs NetBSD vs etc.. diffs.
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*/
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/systm.h>
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#include <sys/socket.h>
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#include <sys/sysctl.h>
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#include <sys/bus.h>
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#include <machine/bus.h>
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#include <sys/rman.h>
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#include <machine/resource.h>
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#include <vm/uma.h>
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#include <net/if.h>
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#include <net/if_atm.h>
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#include <pci/pcivar.h>
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#include <pci/pcireg.h>
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#include <dev/en/midwayreg.h>
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#include <dev/en/midwayvar.h>
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MODULE_DEPEND(en, pci, 1, 1, 1);
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MODULE_DEPEND(en, atm, 1, 1, 1);
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/*
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* local structures
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*/
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struct en_pci_softc {
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/* bus independent stuff */
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struct en_softc esc; /* includes "device" structure */
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/* freebsd newbus glue */
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struct resource *res; /* resource descriptor for registers */
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struct resource *irq; /* resource descriptor for interrupt */
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void *ih; /* interrupt handle */
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};
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static void eni_get_macaddr(device_t, struct en_pci_softc *);
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static void adp_get_macaddr(struct en_pci_softc *);
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/*
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* address of config base memory address register in PCI config space
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* (this is card specific)
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*/
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#define PCI_CBMA 0x10
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/*
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* tonga (pci bridge). ENI cards only!
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*/
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#define EN_TONGA 0x60 /* PCI config addr of tonga reg */
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#define TONGA_SWAP_DMA 0x80 /* endian swap control */
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#define TONGA_SWAP_BYTE 0x40
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#define TONGA_SWAP_WORD 0x20
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#define TONGA_READ_MULT 0x00
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#define TONGA_READ_MEM 0x04
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#define TONGA_READ_IVAN 0x08
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#define TONGA_READ_KEN 0x0C
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/*
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* adaptec pci bridge. ADP cards only!
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*/
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#define ADP_PCIREG 0x050040 /* PCI control register */
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#define ADP_PCIREG_RESET 0x1 /* reset card */
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#define ADP_PCIREG_IENABLE 0x2 /* interrupt enable */
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#define ADP_PCIREG_SWAP_WORD 0x4 /* swap byte on slave access */
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#define ADP_PCIREG_SWAP_DMA 0x8 /* swap byte on DMA */
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#define PCI_VENDOR_EFFICIENTNETS 0x111a /* Efficent Networks */
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#define PCI_PRODUCT_EFFICIENTNETS_ENI155PF 0x0000 /* ENI-155P ATM */
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#define PCI_PRODUCT_EFFICIENTNETS_ENI155PA 0x0002 /* ENI-155P ATM */
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#define PCI_VENDOR_ADP 0x9004 /* adaptec */
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#define PCI_PRODUCT_ADP_AIC5900 0x5900
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#define PCI_PRODUCT_ADP_AIC5905 0x5905
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#define PCI_VENDOR(x) ((x) & 0xFFFF)
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#define PCI_CHIPID(x) (((x) >> 16) & 0xFFFF)
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/*
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* bus specific reset function [ADP only!]
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*/
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static void
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adp_busreset(void *v)
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{
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struct en_softc *sc = (struct en_softc *)v;
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uint32_t dummy;
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bus_space_write_4(sc->en_memt, sc->en_base, ADP_PCIREG,
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ADP_PCIREG_RESET);
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DELAY(1000); /* let it reset */
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dummy = bus_space_read_4(sc->en_memt, sc->en_base, ADP_PCIREG);
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bus_space_write_4(sc->en_memt, sc->en_base, ADP_PCIREG,
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(ADP_PCIREG_SWAP_DMA | ADP_PCIREG_IENABLE));
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dummy = bus_space_read_4(sc->en_memt, sc->en_base, ADP_PCIREG);
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if ((dummy & (ADP_PCIREG_SWAP_WORD | ADP_PCIREG_SWAP_DMA)) !=
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ADP_PCIREG_SWAP_DMA)
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if_printf(&sc->ifatm.ifnet, "adp_busreset: Adaptec ATM did "
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"NOT reset!\n");
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}
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/***********************************************************************/
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/*
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* autoconfig stuff
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*/
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static int
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en_pci_probe(device_t dev)
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{
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switch (pci_get_vendor(dev)) {
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case PCI_VENDOR_EFFICIENTNETS:
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switch (pci_get_device(dev)) {
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case PCI_PRODUCT_EFFICIENTNETS_ENI155PF:
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case PCI_PRODUCT_EFFICIENTNETS_ENI155PA:
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device_set_desc(dev, "Efficient Networks ENI-155p");
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return (0);
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}
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break;
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case PCI_VENDOR_ADP:
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switch (pci_get_device(dev)) {
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case PCI_PRODUCT_ADP_AIC5900:
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case PCI_PRODUCT_ADP_AIC5905:
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device_set_desc(dev, "Adaptec 155 ATM");
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return (0);
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}
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break;
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}
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return (ENXIO);
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}
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static int
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en_pci_attach(device_t dev)
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{
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struct en_softc *sc;
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struct en_pci_softc *scp;
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u_long val;
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int rid, unit, error = 0;
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sc = device_get_softc(dev);
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scp = (struct en_pci_softc *)sc;
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unit = device_get_unit(dev);
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sc->ifatm.ifnet.if_unit = unit;
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sc->ifatm.ifnet.if_name = "en";
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/*
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* Enable bus mastering.
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*/
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val = pci_read_config(dev, PCIR_COMMAND, 2);
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val |= (PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN);
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pci_write_config(dev, PCIR_COMMAND, val, 2);
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/*
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* Map control/status registers.
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*/
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rid = PCI_CBMA;
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scp->res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid,
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0, ~0, 1, RF_ACTIVE);
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if (scp->res == NULL) {
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device_printf(dev, "could not map memory\n");
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error = ENXIO;
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goto fail;
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}
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sc->dev = dev;
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sc->en_memt = rman_get_bustag(scp->res);
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sc->en_base = rman_get_bushandle(scp->res);
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/*
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* Allocate our interrupt.
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*/
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rid = 0;
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scp->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1,
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RF_SHAREABLE | RF_ACTIVE);
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if (scp->irq == NULL) {
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device_printf(dev, "could not map interrupt\n");
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bus_release_resource(dev, SYS_RES_MEMORY, PCI_CBMA, scp->res);
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error = ENXIO;
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goto fail;
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}
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sc->ipl = 1; /* XXX (required to enable interrupt on midway) */
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/* figure out if we are an adaptec card or not */
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sc->is_adaptec = (pci_get_vendor(dev) == PCI_VENDOR_ADP) ? 1 : 0;
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/*
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* set up pci bridge
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*/
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if (sc->is_adaptec) {
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adp_get_macaddr(scp);
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sc->en_busreset = adp_busreset;
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adp_busreset(sc);
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} else {
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eni_get_macaddr(dev, scp);
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sc->en_busreset = NULL;
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pci_write_config(dev, EN_TONGA, TONGA_SWAP_DMA | TONGA_READ_IVAN, 4);
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}
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/*
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* Common attach stuff
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*/
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if ((error = en_attach(sc)) != 0) {
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device_printf(dev, "attach failed\n");
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bus_teardown_intr(dev, scp->irq, scp->ih);
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bus_release_resource(dev, SYS_RES_IRQ, 0, scp->irq);
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bus_release_resource(dev, SYS_RES_MEMORY, PCI_CBMA, scp->res);
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goto fail;
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}
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/*
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* Do the interrupt SETUP last just before returning
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*/
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error = bus_setup_intr(dev, scp->irq, INTR_TYPE_NET,
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en_intr, sc, &scp->ih);
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if (error) {
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en_reset(sc);
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atm_ifdetach(&sc->ifatm.ifnet);
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device_printf(dev, "could not setup irq\n");
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bus_release_resource(dev, SYS_RES_IRQ, 0, scp->irq);
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bus_release_resource(dev, SYS_RES_MEMORY, PCI_CBMA, scp->res);
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en_destroy(sc);
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goto fail;
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}
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return (0);
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fail:
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return (error);
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}
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/*
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* Detach the adapter
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*/
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static int
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en_pci_detach(device_t dev)
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{
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struct en_softc *sc = device_get_softc(dev);
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struct en_pci_softc *scp = (struct en_pci_softc *)sc;
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/*
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* Stop DMA and drop transmit queue.
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*/
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if ((sc->ifatm.ifnet.if_flags & IFF_RUNNING)) {
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if_printf(&sc->ifatm.ifnet, "still running\n");
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sc->ifatm.ifnet.if_flags &= ~IFF_RUNNING;
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}
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/*
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* Close down routes etc.
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*/
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en_reset(sc);
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atm_ifdetach(&sc->ifatm.ifnet);
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/*
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* Deallocate resources.
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*/
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bus_teardown_intr(dev, scp->irq, scp->ih);
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bus_release_resource(dev, SYS_RES_IRQ, 0, scp->irq);
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bus_release_resource(dev, SYS_RES_MEMORY, PCI_CBMA, scp->res);
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/*
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* Free all the driver internal resources
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*/
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en_destroy(sc);
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return (0);
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}
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static int
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en_pci_shutdown(device_t dev)
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{
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struct en_pci_softc *psc = device_get_softc(dev);
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en_reset(&psc->esc);
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DELAY(10); /* is this necessary? */
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return (0);
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}
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/*
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* Get the MAC address from an Adaptec board. No idea how to get
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* serial number or other stuff, because I have no documentation for that
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* card.
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*/
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static void
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adp_get_macaddr(struct en_pci_softc *scp)
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{
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struct en_softc * sc = (struct en_softc *)scp;
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int lcv;
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for (lcv = 0; lcv < sizeof(sc->ifatm.mib.esi); lcv++)
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sc->ifatm.mib.esi[lcv] = bus_space_read_1(sc->en_memt,
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sc->en_base, MID_ADPMACOFF + lcv);
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}
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/*
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* Read station (MAC) address from serial EEPROM.
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* derived from linux drivers/atm/eni.c by Werner Almesberger, EPFL LRC.
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*/
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#define EN_PROM_MAGIC 0x0c
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#define EN_PROM_DATA 0x02
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#define EN_PROM_CLK 0x01
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#define EN_ESI 64
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#define EN_SERIAL 112
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/*
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* Read a byte from the given address in the EEPROM
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*/
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static uint8_t
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eni_get_byte(device_t dev, uint32_t *data, u_int address)
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{
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int j;
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uint8_t tmp;
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address = (address << 1) + 1;
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/* start operation */
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*data |= EN_PROM_DATA ;
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pci_write_config(dev, EN_TONGA, *data, 4);
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*data |= EN_PROM_CLK ;
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pci_write_config(dev, EN_TONGA, *data, 4);
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*data &= ~EN_PROM_DATA ;
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pci_write_config(dev, EN_TONGA, *data, 4);
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*data &= ~EN_PROM_CLK ;
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pci_write_config(dev, EN_TONGA, *data, 4);
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/* send address with serial line */
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for ( j = 7 ; j >= 0 ; j --) {
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*data = ((address >> j) & 1) ? (*data | EN_PROM_DATA) :
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(*data & ~EN_PROM_DATA);
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pci_write_config(dev, EN_TONGA, *data, 4);
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*data |= EN_PROM_CLK ;
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pci_write_config(dev, EN_TONGA, *data, 4);
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*data &= ~EN_PROM_CLK ;
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pci_write_config(dev, EN_TONGA, *data, 4);
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}
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/* get ack */
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*data |= EN_PROM_DATA ;
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pci_write_config(dev, EN_TONGA, *data, 4);
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*data |= EN_PROM_CLK ;
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pci_write_config(dev, EN_TONGA, *data, 4);
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*data = pci_read_config(dev, EN_TONGA, 4);
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*data &= ~EN_PROM_CLK ;
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pci_write_config(dev, EN_TONGA, *data, 4);
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*data |= EN_PROM_DATA ;
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pci_write_config(dev, EN_TONGA, *data, 4);
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tmp = 0;
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for ( j = 7 ; j >= 0 ; j --) {
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tmp <<= 1;
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*data |= EN_PROM_DATA ;
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pci_write_config(dev, EN_TONGA, *data, 4);
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*data |= EN_PROM_CLK ;
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pci_write_config(dev, EN_TONGA, *data, 4);
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*data = pci_read_config(dev, EN_TONGA, 4);
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if(*data & EN_PROM_DATA) tmp |= 1;
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*data &= ~EN_PROM_CLK ;
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pci_write_config(dev, EN_TONGA, *data, 4);
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*data |= EN_PROM_DATA ;
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pci_write_config(dev, EN_TONGA, *data, 4);
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}
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/* get ack */
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*data |= EN_PROM_DATA ;
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pci_write_config(dev, EN_TONGA, *data, 4);
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*data |= EN_PROM_CLK ;
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pci_write_config(dev, EN_TONGA, *data, 4);
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*data = pci_read_config(dev, EN_TONGA, 4);
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*data &= ~EN_PROM_CLK ;
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pci_write_config(dev, EN_TONGA, *data, 4);
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*data |= EN_PROM_DATA ;
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pci_write_config(dev, EN_TONGA, *data, 4);
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return (tmp);
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}
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/*
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* Get MAC address and other stuff from the EEPROM
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*/
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static void
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eni_get_macaddr(device_t dev, struct en_pci_softc *scp)
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{
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struct en_softc * sc = (struct en_softc *)scp;
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int i;
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uint32_t data, t_data;
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t_data = pci_read_config(dev, EN_TONGA, 4) & 0xffffff00;
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data = EN_PROM_MAGIC | EN_PROM_DATA | EN_PROM_CLK;
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pci_write_config(dev, EN_TONGA, data, 4);
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for (i = 0; i < sizeof(sc->ifatm.mib.esi); i ++)
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sc->ifatm.mib.esi[i] = eni_get_byte(dev, &data, i + EN_ESI);
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sc->ifatm.mib.serial = 0;
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for (i = 0; i < 4; i++) {
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sc->ifatm.mib.serial <<= 8;
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sc->ifatm.mib.serial |= eni_get_byte(dev, &data, i + EN_SERIAL);
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}
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/* stop operation */
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data &= ~EN_PROM_DATA;
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pci_write_config(dev, EN_TONGA, data, 4);
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data |= EN_PROM_CLK;
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pci_write_config(dev, EN_TONGA, data, 4);
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data |= EN_PROM_DATA;
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pci_write_config(dev, EN_TONGA, data, 4);
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pci_write_config(dev, EN_TONGA, t_data, 4);
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}
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/*
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* Driver infrastructure
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*/
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static device_method_t en_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, en_pci_probe),
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DEVMETHOD(device_attach, en_pci_attach),
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DEVMETHOD(device_detach, en_pci_detach),
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DEVMETHOD(device_shutdown, en_pci_shutdown),
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{ 0, 0 }
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};
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static driver_t en_driver = {
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"en",
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en_methods,
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sizeof(struct en_pci_softc),
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};
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static devclass_t en_devclass;
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DRIVER_MODULE(en, pci, en_driver, en_devclass, 0, 0);
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