/* $OpenBSD: if_lmc_obsd.c,v 1.19 2005/11/07 00:29:21 brad Exp $ */
/* $NetBSD: if_lmc_nbsd.c,v 1.1 1999/03/25 03:32:43 explorer Exp $ */
/*-
* Copyright (c) 1997-1999 LAN Media Corporation (LMC)
* All rights reserved. www.lanmedia.com
*
* This code is written by Michael Graff <graff@vix.com> for LMC.
* The code is derived from permitted modifications to software created
* by Matt Thomas (matt@3am-software.com).
*
* 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 marketing or advertising materials mentioning features or
* use of this software must display the following acknowledgement:
* This product includes software developed by LAN Media Corporation
* and its contributors.
* 4. Neither the name of LAN Media Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY LAN MEDIA CORPORATION 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 FOUNDATION 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.
*/
/*-
* Copyright (c) 1994-1997 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 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.
*/
#include "bpfilter.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <sys/errno.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/proc.h> /* only for declaration of wakeup() used by vm.h */
#include <sys/device.h>
#include <dev/pci/pcidevs.h>
#include <net/if.h>
#include <net/if_types.h>
#include <net/if_dl.h>
#include <net/netisr.h>
#if NBPFILTER > 0
#include <net/bpf.h>
#endif
#include <net/if_sppp.h>
#include <machine/bus.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/ic/dc21040reg.h>
#include <dev/pci/if_lmc_types.h>
#include <dev/pci/if_lmcioctl.h>
#include <dev/pci/if_lmcvar.h>
/*
* This file is INCLUDED (gross, I know, but...)
*/
static void lmc_shutdown(void *arg);
static int lmc_busdma_init(lmc_softc_t * const sc);
static int lmc_busdma_allocmem(lmc_softc_t * const sc, size_t size,
bus_dmamap_t *map_p, lmc_desc_t **desc_p);
static int
lmc_pci_probe(struct device *parent,
void *match,
void *aux)
{
struct pci_attach_args *pa = (struct pci_attach_args *)aux;
u_int32_t id;
/*
* check first for the DEC chip we expect to find. We expect
* 21140A, pass 2.2 or higher.
*/
if (PCI_VENDORID(pa->pa_id) != PCI_VENDOR_DEC)
return 0;
if (PCI_CHIPID(pa->pa_id) != PCI_PRODUCT_DEC_21140)
return 0;
id = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_CFRV) & 0xff;
if (id < 0x22)
return 0;
/*
* Next, check the subsystem ID and see if it matches what we
* expect.
*/
id = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SSID);
if (PCI_VENDORID(id) != PCI_VENDOR_LMC)
return 0;
if ((PCI_CHIPID(id) != PCI_PRODUCT_LMC_HSSI)
&& (PCI_CHIPID(id) != PCI_PRODUCT_LMC_HSSIC)
&& (PCI_CHIPID(id) != PCI_PRODUCT_LMC_DS3)
&& (PCI_CHIPID(id) != PCI_PRODUCT_LMC_SSI)
&& (PCI_CHIPID(id) != PCI_PRODUCT_LMC_DS1))
return 0;
return 20; /* must be > than any other tulip driver */
}
static void lmc_pci_attach(struct device * const parent,
struct device * const self, void * const aux);
struct cfattach lmc_ca = {
sizeof(lmc_softc_t), lmc_pci_probe, lmc_pci_attach
};
struct cfdriver lmc_cd = {
0, "lmc", DV_IFNET
};
static void
lmc_pci_attach(struct device * const parent,
struct device * const self, void * const aux)
{
u_int32_t revinfo, cfdainfo, id, ssid;
pci_intr_handle_t intrhandle;
const char *intrstr;
unsigned csroffset = LMC_PCI_CSROFFSET;
unsigned csrsize = LMC_PCI_CSRSIZE;
lmc_csrptr_t csr_base;
lmc_spl_t s;
lmc_intrfunc_t (*intr_rtn)(void *) = lmc_intr_normal;
lmc_softc_t * const sc = (lmc_softc_t *) self;
struct pci_attach_args * const pa = (struct pci_attach_args *) aux;
extern lmc_media_t lmc_hssi_media;
extern lmc_media_t lmc_ds3_media;
extern lmc_media_t lmc_t1_media;
extern lmc_media_t lmc_ssi_media;
revinfo = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_CFRV) & 0xFF;
id = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_CFID);
cfdainfo = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_CFDA);
ssid = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SSID);
switch (PCI_CHIPID(ssid)) {
case PCI_PRODUCT_LMC_HSSI:
printf(": HSSI\n");
sc->lmc_media = &lmc_hssi_media;
break;
case PCI_PRODUCT_LMC_HSSIC:
printf(": HSSIc\n");
sc->lmc_media = &lmc_hssi_media;
break;
case PCI_PRODUCT_LMC_DS3:
printf(": DS3\n");
sc->lmc_media = &lmc_ds3_media;
break;
case PCI_PRODUCT_LMC_SSI:
printf(": SSI\n");
sc->lmc_media = &lmc_ssi_media;
break;
case PCI_PRODUCT_LMC_DS1:
printf(": T1\n");
sc->lmc_media = &lmc_t1_media;
break;
}
sc->lmc_pci_busno = parent;
sc->lmc_pci_devno = pa->pa_device;
sc->lmc_chipid = LMC_21140A;
sc->lmc_features |= LMC_HAVE_STOREFWD;
if (sc->lmc_chipid == LMC_21140A && revinfo <= 0x22)
sc->lmc_features |= LMC_HAVE_RXBADOVRFLW;
if (cfdainfo & (TULIP_CFDA_SLEEP | TULIP_CFDA_SNOOZE)) {
cfdainfo &= ~(TULIP_CFDA_SLEEP | TULIP_CFDA_SNOOZE);
pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_CFDA, cfdainfo);
DELAY(11 * 1000);
}
bcopy(self->dv_xname, sc->lmc_if.if_xname, IFNAMSIZ);
sc->lmc_if.if_softc = sc;
sc->lmc_pc = pa->pa_pc;
sc->lmc_revinfo = revinfo;
sc->lmc_if.if_softc = sc;
csr_base = 0;
{
bus_space_tag_t iot, memt;
bus_space_handle_t ioh, memh;
int ioh_valid, memh_valid;
ioh_valid = (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO,
0, &iot, &ioh, NULL, NULL, 0) == 0);
memh_valid = (pci_mapreg_map(pa, PCI_CBMA,
PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 0, &memt,
&memh, NULL, NULL, 0) == 0);
if (memh_valid) {
sc->lmc_bustag = memt;
sc->lmc_bushandle = memh;
} else if (ioh_valid) {
sc->lmc_bustag = iot;
sc->lmc_bushandle = ioh;
} else {
printf("%s: unable to map device registers\n",
sc->lmc_dev.dv_xname);
return;
}
}
sc->lmc_dmatag = pa->pa_dmat;
if ((lmc_busdma_init(sc)) != 0) {
printf("error initing bus_dma\n");
return;
}
lmc_initcsrs(sc, csr_base + csroffset, csrsize);
lmc_initring(sc, &sc->lmc_rxinfo, sc->lmc_rxdescs,
LMC_RXDESCS);
lmc_initring(sc, &sc->lmc_txinfo, sc->lmc_txdescs,
LMC_TXDESCS);
lmc_gpio_mkinput(sc, 0xff);
sc->lmc_gpio = 0; /* drive no signals yet */
sc->lmc_media->defaults(sc);
sc->lmc_media->set_link_status(sc, LMC_LINK_DOWN); /* down */
/*
* Make sure there won't be any interrupts or such...
*/
LMC_CSR_WRITE(sc, csr_busmode, TULIP_BUSMODE_SWRESET);
/*
* Wait 10 microseconds (actually 50 PCI cycles but at
* 33MHz that comes to two microseconds but wait a
* bit longer anyways)
*/
DELAY(100);
lmc_read_macaddr(sc);
if (pci_intr_map(pa, &intrhandle)) {
printf("%s: couldn't map interrupt\n",
sc->lmc_dev.dv_xname);
return;
}
intrstr = pci_intr_string(pa->pa_pc, intrhandle);
sc->lmc_ih = pci_intr_establish(pa->pa_pc, intrhandle, IPL_NET,
intr_rtn, sc, self->dv_xname);
if (sc->lmc_ih == NULL) {
printf("%s: couldn't establish interrupt",
sc->lmc_dev.dv_xname);
if (intrstr != NULL)
printf(" at %s", intrstr);
printf("\n");
return;
}
printf("%s: pass %d.%d, serial " LMC_EADDR_FMT ", %s\n",
sc->lmc_dev.dv_xname,
(sc->lmc_revinfo & 0xF0) >> 4, sc->lmc_revinfo & 0x0F,
LMC_EADDR_ARGS(sc->lmc_enaddr), intrstr);
sc->lmc_ats = shutdownhook_establish(lmc_shutdown, sc);
if (sc->lmc_ats == NULL)
printf("%s: warning: couldn't establish shutdown hook\n",
sc->lmc_xname);
s = LMC_RAISESPL();
lmc_dec_reset(sc);
lmc_reset(sc);
lmc_attach(sc);
LMC_RESTORESPL(s);
}
static void
lmc_shutdown(void *arg)
{
lmc_softc_t * const sc = arg;
LMC_CSR_WRITE(sc, csr_busmode, TULIP_BUSMODE_SWRESET);
DELAY(10);
sc->lmc_miireg16 = 0; /* deassert ready, and all others too */
lmc_led_on(sc, LMC_MII16_LED_ALL);
}
static int
lmc_busdma_allocmem(
lmc_softc_t * const sc,
size_t size,
bus_dmamap_t *map_p,
lmc_desc_t **desc_p)
{
bus_dma_segment_t segs[1];
int nsegs, error;
error = bus_dmamem_alloc(sc->lmc_dmatag, size, 1, NBPG,
segs, sizeof(segs)/sizeof(segs[0]),
&nsegs, BUS_DMA_NOWAIT);
if (error == 0) {
void *desc;
error = bus_dmamem_map(sc->lmc_dmatag, segs, nsegs, size,
(void *) &desc, BUS_DMA_NOWAIT|BUS_DMA_COHERENT);
if (error == 0) {
bus_dmamap_t map;
error = bus_dmamap_create(sc->lmc_dmatag, size, 1, size, 0,
BUS_DMA_NOWAIT, &map);
if (error == 0) {
error = bus_dmamap_load(sc->lmc_dmatag, map, desc,
size, NULL, BUS_DMA_NOWAIT);
if (error)
bus_dmamap_destroy(sc->lmc_dmatag, map);
else
*map_p = map;
}
if (error)
bus_dmamem_unmap(sc->lmc_dmatag, desc, size);
}
if (error)
bus_dmamem_free(sc->lmc_dmatag, segs, nsegs);
else
*desc_p = desc;
}
return error;
}
static int
lmc_busdma_init(
lmc_softc_t * const sc)
{
int error = 0;
/*
* Allocate space and dmamap for transmit ring
*/
if (error == 0) {
error = lmc_busdma_allocmem(sc, sizeof(lmc_desc_t) * LMC_TXDESCS,
&sc->lmc_txdescmap,
&sc->lmc_txdescs);
}
/*
* Allocate dmamaps for each transmit descriptors
*/
if (error == 0) {
while (error == 0 && sc->lmc_txmaps_free < LMC_TXDESCS) {
bus_dmamap_t map;
if ((error = LMC_TXMAP_CREATE(sc, &map)) == 0)
sc->lmc_txmaps[sc->lmc_txmaps_free++] = map;
}
if (error) {
while (sc->lmc_txmaps_free > 0)
bus_dmamap_destroy(sc->lmc_dmatag,
sc->lmc_txmaps[--sc->lmc_txmaps_free]);
}
}
/*
* Allocate space and dmamap for receive ring
*/
if (error == 0) {
error = lmc_busdma_allocmem(sc, sizeof(lmc_desc_t) * LMC_RXDESCS,
&sc->lmc_rxdescmap,
&sc->lmc_rxdescs);
}
/*
* Allocate dmamaps for each receive descriptors
*/
if (error == 0) {
while (error == 0 && sc->lmc_rxmaps_free < LMC_RXDESCS) {
bus_dmamap_t map;
if ((error = LMC_RXMAP_CREATE(sc, &map)) == 0)
sc->lmc_rxmaps[sc->lmc_rxmaps_free++] = map;
}
if (error) {
while (sc->lmc_rxmaps_free > 0)
bus_dmamap_destroy(sc->lmc_dmatag,
sc->lmc_rxmaps[--sc->lmc_rxmaps_free]);
}
}
return error;
}
![[BACK]](/icons/back.gif){kind=icon}
Return to if_lmc_obsd.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / sys / dev / pci