275 lines
7.4 KiB
C
275 lines
7.4 KiB
C
/* $FreeBSD$ */
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/* $Id: if_lmc_fbsd.c,v 1.3 1999/01/12 13:27:42 explorer Exp $ */
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/*-
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* Copyright (c) 1994-1997 Matt Thomas (matt@3am-software.com)
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* Copyright (c) LAN Media Corporation 1998, 1999.
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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. The name of the author may not be used to endorse or promote products
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* derived from this software withough 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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/*
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* This file is INCLUDED (gross, I know, but...)
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*/
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#define PCI_CONF_WRITE(r, v) pci_conf_write(config_id, (r), (v))
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#define PCI_CONF_READ(r) pci_conf_read(config_id, (r))
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#define PCI_GETBUSDEVINFO(sc) (sc)->lmc_pci_busno = (config_id->bus), \
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(sc)->lmc_pci_devno = (config_id->slot)
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static void lmc_shutdown(int howto, void * arg);
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#if defined(LMC_DEVCONF)
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static int
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lmc_pci_shutdown(struct kern_devconf * const kdc, int force)
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{
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if (kdc->kdc_unit < LMC_MAX_DEVICES) {
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lmc_softc_t * const sc = LMC_UNIT_TO_SOFTC(kdc->kdc_unit);
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if (sc != NULL)
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lmc_shutdown(0, sc);
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}
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(void) dev_detach(kdc);
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return 0;
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}
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#endif
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static char*
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lmc_pci_probe(pcici_t config_id, pcidi_t device_id)
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{
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u_int32_t id;
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/*
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* check first for the DEC chip we expect to find. We expect
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* 21140A, pass 2.2 or higher.
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*/
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if (PCI_VENDORID(device_id) != DEC_VENDORID)
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return NULL;
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if (PCI_CHIPID(device_id) != CHIPID_21140)
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return NULL;
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id = pci_conf_read(config_id, PCI_CFRV) & 0xff;
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if (id < 0x22)
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return NULL;
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/*
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* Next, check the subsystem ID and see if it matches what we
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* expect.
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*/
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id = pci_conf_read(config_id, PCI_SSID);
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if (PCI_VENDORID(id) != PCI_VENDOR_LMC)
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return NULL;
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if (PCI_CHIPID(id) == PCI_PRODUCT_LMC_HSSI) {
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return "Lan Media Corporation HSSI";
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}
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if (PCI_CHIPID(id) == PCI_PRODUCT_LMC_DS3) {
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return "Lan Media Corporation DS3";
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}
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if (PCI_CHIPID(id) == PCI_PRODUCT_LMC_SSI) {
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return "Lan Media Corporation SSI";
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}
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if (PCI_CHIPID(id) == PCI_PRODUCT_LMC_T1) {
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return "Lan Media Coporation T1";
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}
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return NULL;
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}
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static void lmc_pci_attach(pcici_t config_id, int unit);
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static u_long lmc_pci_count;
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struct pci_device lmcdevice = {
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"lmc",
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lmc_pci_probe,
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lmc_pci_attach,
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&lmc_pci_count,
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#if defined(LMC_DEVCONF)
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lmc_pci_shutdown,
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#endif
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};
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DATA_SET (pcidevice_set, lmcdevice);
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static void
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lmc_pci_attach(pcici_t config_id, int unit)
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{
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lmc_softc_t *sc;
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int retval, idx;
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u_int32_t revinfo, cfdainfo, id, ssid;
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#if !defined(LMC_IOMAPPED)
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vm_offset_t pa_csrs;
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#endif
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unsigned csroffset = LMC_PCI_CSROFFSET;
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unsigned csrsize = LMC_PCI_CSRSIZE;
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lmc_csrptr_t csr_base;
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lmc_spl_t s;
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lmc_intrfunc_t (*intr_rtn)(void *) = lmc_intr_normal;
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if (unit >= LMC_MAX_DEVICES) {
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printf("lmc%d", unit);
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printf(": not configured; limit of %d reached or exceeded\n",
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LMC_MAX_DEVICES);
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return;
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}
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/*
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* allocate memory for the softc
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*/
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sc = (lmc_softc_t *) malloc(sizeof(*sc), M_DEVBUF, M_NOWAIT);
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if (sc == NULL)
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return;
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bzero(sc, sizeof(*sc)); /* Zero out the softc*/
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revinfo = PCI_CONF_READ(PCI_CFRV) & 0xFF;
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id = PCI_CONF_READ(PCI_CFID);
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cfdainfo = PCI_CONF_READ(PCI_CFDA);
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ssid = pci_conf_read(config_id, PCI_SSID);
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switch (PCI_CHIPID(ssid)) {
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case PCI_PRODUCT_LMC_HSSI:
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sc->lmc_media = &lmc_hssi_media;
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break;
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case PCI_PRODUCT_LMC_DS3:
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sc->lmc_media = &lmc_ds3_media;
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break;
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case PCI_PRODUCT_LMC_SSI:
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sc->lmc_media = &lmc_ssi_media;
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break;
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case PCI_PRODUCT_LMC_T1:
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sc->lmc_media = &lmc_t1_media;
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break;
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}
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/*
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* allocate memory for the device descriptors
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*/
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sc->lmc_rxdescs = (tulip_desc_t *)malloc(sizeof(tulip_desc_t) * LMC_RXDESCS, M_DEVBUF, M_NOWAIT);
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sc->lmc_txdescs = (tulip_desc_t *)malloc(sizeof(tulip_desc_t) * LMC_TXDESCS, M_DEVBUF, M_NOWAIT);
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if (sc->lmc_rxdescs == NULL || sc->lmc_txdescs == NULL) {
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if (sc->lmc_rxdescs)
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free((caddr_t) sc->lmc_rxdescs, M_DEVBUF);
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if (sc->lmc_txdescs)
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free((caddr_t) sc->lmc_txdescs, M_DEVBUF);
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free((caddr_t) sc, M_DEVBUF);
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return;
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}
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PCI_GETBUSDEVINFO(sc);
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sc->lmc_chipid = LMC_21140A;
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sc->lmc_features |= LMC_HAVE_STOREFWD;
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if (sc->lmc_chipid == LMC_21140A && revinfo <= 0x22)
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sc->lmc_features |= LMC_HAVE_RXBADOVRFLW;
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if (cfdainfo & (TULIP_CFDA_SLEEP | TULIP_CFDA_SNOOZE)) {
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cfdainfo &= ~(TULIP_CFDA_SLEEP | TULIP_CFDA_SNOOZE);
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PCI_CONF_WRITE(PCI_CFDA, cfdainfo);
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DELAY(11 * 1000);
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}
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sc->lmc_unit = unit;
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sc->lmc_name = "lmc";
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sc->lmc_revinfo = revinfo;
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#if BSD >= 199506
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sc->lmc_if.if_softc = sc;
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#endif
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#if defined(LMC_IOMAPPED)
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retval = pci_map_port(config_id, PCI_CBIO, &csr_base);
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#else
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retval = pci_map_mem(config_id, PCI_CBMA, (vm_offset_t *) &csr_base,
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&pa_csrs);
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#endif
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if (!retval) {
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free((caddr_t) sc->lmc_rxdescs, M_DEVBUF);
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free((caddr_t) sc->lmc_txdescs, M_DEVBUF);
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free((caddr_t) sc, M_DEVBUF);
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return;
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}
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tulips[unit] = sc;
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lmc_initcsrs(sc, csr_base + csroffset, csrsize);
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lmc_initring(sc, &sc->lmc_rxinfo, sc->lmc_rxdescs,
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LMC_RXDESCS);
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lmc_initring(sc, &sc->lmc_txinfo, sc->lmc_txdescs,
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LMC_TXDESCS);
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lmc_gpio_mkinput(sc, 0xff);
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sc->lmc_gpio = 0; /* drive no signals yet */
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sc->lmc_media->defaults(sc);
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sc->lmc_media->set_link_status(sc, 0); /* down */
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/*
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* Make sure there won't be any interrupts or such...
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*/
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LMC_CSR_WRITE(sc, csr_busmode, TULIP_BUSMODE_SWRESET);
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/*
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* Wait 10 microseconds (actually 50 PCI cycles but at
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* 33MHz that comes to two microseconds but wait a
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* bit longer anyways)
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*/
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DELAY(100);
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switch (sc->ictl.cardtype) {
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case LMC_CARDTYPE_HSSI:
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printf(LMC_PRINTF_FMT ": HSSI, ", LMC_PRINTF_ARGS);
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break;
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case LMC_CARDTYPE_DS3:
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printf(LMC_PRINTF_FMT ": DS3, ", LMC_PRINTF_ARGS);
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break;
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case LMC_CARDTYPE_SSI:
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printf(LMC_PRINTF_FMT ": SSI, ", LMC_PRINTF_ARGS);
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break;
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}
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lmc_read_macaddr(sc);
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printf("pass %d.%d, serial " LMC_EADDR_FMT "\n",
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(sc->lmc_revinfo & 0xF0) >> 4, sc->lmc_revinfo & 0x0F,
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LMC_EADDR_ARGS(sc->lmc_enaddr));
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if (!pci_map_int (config_id, intr_rtn, (void*) sc, &net_imask)) {
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printf(LMC_PRINTF_FMT ": couldn't map interrupt\n",
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LMC_PRINTF_ARGS);
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return;
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}
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#if !defined(LMC_DEVCONF)
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at_shutdown(lmc_shutdown, sc, SHUTDOWN_POST_SYNC);
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#endif
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s = LMC_RAISESPL();
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lmc_dec_reset(sc);
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lmc_reset(sc);
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lmc_attach(sc);
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LMC_RESTORESPL(s);
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}
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static void
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lmc_shutdown(int howto, void * arg)
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{
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lmc_softc_t * const sc = arg;
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LMC_CSR_WRITE(sc, csr_busmode, TULIP_BUSMODE_SWRESET);
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DELAY(10);
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sc->lmc_miireg16 = 0; /* deassert ready, and all others too */
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printf("lmc: 5\n");
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lmc_led_on(sc, LMC_MII16_LED_ALL);
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}
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