NetBSD/sys/dev/pci/iavc_pci.c

382 lines
9.9 KiB
C

/* $NetBSD: iavc_pci.c,v 1.2 2003/10/03 16:38:44 pooka Exp $ */
/*
* Copyright (c) 2001-2003 Cubical Solutions Ltd.
* 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.
*
* capi/iavc/iavc_pci.c
* The AVM ISDN controllers' PCI bus attachment handling.
*
* $FreeBSD: src/sys/i4b/capi/iavc/iavc_pci.c,v 1.1.2.1 2001/08/10 14:08:34 obrien Exp $
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: iavc_pci.c,v 1.2 2003/10/03 16:38:44 pooka Exp $");
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/callout.h>
#include <sys/socket.h>
#include <sys/device.h>
#include <net/if.h>
#include <machine/bus.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcidevs.h>
#include <netisdn/i4b_ioctl.h>
#include <netisdn/i4b_l3l4.h>
#include <netisdn/i4b_capi.h>
#include <dev/ic/iavcvar.h>
#include <dev/ic/iavcreg.h>
struct iavc_pci_softc {
struct iavc_softc sc_iavc;
bus_addr_t mem_base;
bus_size_t mem_size;
bus_addr_t io_base;
bus_size_t io_size;
pci_chipset_tag_t sc_pc;
void *sc_ih; /* interrupt handler */
};
#define IAVC_PCI_IOBA 0x14
#define IAVC_PCI_MMBA 0x10
/* PCI driver linkage */
static const struct iavc_pci_product *find_cardname(struct pci_attach_args *);
static int iavc_pci_probe(struct device *, struct cfdata *, void *);
static void iavc_pci_attach(struct device *, struct device *, void *);
int iavc_pci_intr(void *);
CFATTACH_DECL(iavc_pci, sizeof(struct iavc_softc),
iavc_pci_probe, iavc_pci_attach, NULL, NULL);
static const struct iavc_pci_product {
pci_vendor_id_t npp_vendor;
pci_product_id_t npp_product;
const char *name;
} iavc_pci_products[] = {
{ PCI_VENDOR_AVM, PCI_PRODUCT_AVM_B1, "AVM B1 PCI" },
{ PCI_VENDOR_AVM, PCI_PRODUCT_AVM_T1, "AVM T1 PCI" },
{ 0, 0, NULL },
};
static const struct iavc_pci_product *
find_cardname(struct pci_attach_args * pa)
{
const struct iavc_pci_product *pp = NULL;
for (pp = iavc_pci_products; pp->npp_vendor; pp++) {
if (PCI_VENDOR(pa->pa_id) == pp->npp_vendor &&
PCI_PRODUCT(pa->pa_id) == pp->npp_product)
return pp;
}
return NULL;
}
static int
iavc_pci_probe(struct device * parent, struct cfdata * match, void *aux)
{
struct pci_attach_args *pa = aux;
if (find_cardname(pa))
return 1;
return 0;
}
static void
iavc_pci_attach(struct device * parent, struct device * self, void *aux)
{
struct iavc_pci_softc *psc = (void *) self;
struct iavc_softc *sc = (void *) self;
struct pci_attach_args *pa = aux;
pci_chipset_tag_t pc = pa->pa_pc;
const struct iavc_pci_product *pp;
pci_intr_handle_t ih;
const char *intrstr;
int ret;
pp = find_cardname(pa);
if (pp == NULL)
return;
sc->sc_t1 = 0;
sc->sc_dma = 0;
sc->dmat = pa->pa_dmat;
iavc_b1dma_reset(sc);
if (pci_mapreg_map(pa, IAVC_PCI_IOBA, PCI_MAPREG_TYPE_IO, 0,
&sc->sc_io_bt, &sc->sc_io_bh, &psc->io_base, &psc->io_size)) {
aprint_error(": unable to map i/o registers\n");
return;
}
if (pci_mapreg_map(pa, IAVC_PCI_MMBA, PCI_MAPREG_TYPE_MEM, 0,
&sc->sc_mem_bt, &sc->sc_mem_bh, &psc->mem_base, &psc->mem_size)) {
aprint_error(": unable to map mem registers\n");
return;
}
aprint_normal(": %s\n", pp->name);
if (pp->npp_product == PCI_PRODUCT_AVM_T1) {
aprint_error("%s: sorry, PRI not yet supported\n",
sc->sc_dev.dv_xname);
return;
#if 0
sc->sc_capi.card_type = CARD_TYPEC_AVM_T1_PCI;
sc->sc_capi.sc_nbch = NBCH_PRI;
ret = iavc_t1_detect(sc);
if (ret) {
if (ret < 6) {
aprint_error("%s: no card detected?\n",
sc->sc_dev.dv_xname);
} else {
aprint_error("%s: black box not on\n",
sc->sc_dev.dv_xname);
}
return;
} else {
sc->sc_dma = 1;
sc->sc_t1 = 1;
}
#endif
} else if (pp->npp_product == PCI_PRODUCT_AVM_B1) {
sc->sc_capi.card_type = CARD_TYPEC_AVM_B1_PCI;
sc->sc_capi.sc_nbch = NBCH_BRI;
ret = iavc_b1dma_detect(sc);
if (ret) {
ret = iavc_b1_detect(sc);
if (ret) {
aprint_error("%s: no card detected?\n",
sc->sc_dev.dv_xname);
return;
}
} else {
sc->sc_dma = 1;
}
}
if (sc->sc_dma)
iavc_b1dma_reset(sc);
#if 0
/*
* XXX: should really be done this way, but this freezes the card
*/
if (sc->sc_t1)
iavc_t1_reset(sc);
else
iavc_b1_reset(sc);
#endif
if (pci_intr_map(pa, &ih)) {
aprint_error("%s: couldn't map interrupt\n",
sc->sc_dev.dv_xname);
return;
}
intrstr = pci_intr_string(pc, ih);
psc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, iavc_pci_intr, psc);
if (psc->sc_ih == NULL) {
aprint_error("%s: couldn't establish interrupt",
sc->sc_dev.dv_xname);
if (intrstr != NULL)
aprint_normal(" at %s", intrstr);
aprint_normal("\n");
return;
}
psc->sc_pc = pc;
aprint_normal("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
memset(&sc->sc_txq, 0, sizeof(struct ifqueue));
sc->sc_txq.ifq_maxlen = sc->sc_capi.sc_nbch * 4;
sc->sc_intr = 0;
sc->sc_state = IAVC_DOWN;
sc->sc_blocked = 0;
/* setup capi link */
sc->sc_capi.load = iavc_load;
sc->sc_capi.reg_appl = iavc_register;
sc->sc_capi.rel_appl = iavc_release;
sc->sc_capi.send = iavc_send;
sc->sc_capi.ctx = (void *) sc;
/* lock & load DMA for TX */
if ((ret = bus_dmamem_alloc(sc->dmat, IAVC_DMA_SIZE, PAGE_SIZE, 0,
&sc->txseg, 1, &sc->ntxsegs, BUS_DMA_ALLOCNOW)) != 0) {
aprint_error("%s: can't allocate tx DMA memory, error = %d\n",
sc->sc_dev.dv_xname, ret);
goto fail1;
}
if ((ret = bus_dmamem_map(sc->dmat, &sc->txseg, sc->ntxsegs,
IAVC_DMA_SIZE, &sc->sc_sendbuf, BUS_DMA_NOWAIT)) != 0) {
aprint_error("%s: can't map tx DMA memory, error = %d\n",
sc->sc_dev.dv_xname, ret);
goto fail2;
}
if ((ret = bus_dmamap_create(sc->dmat, IAVC_DMA_SIZE, 1,
IAVC_DMA_SIZE, 0, BUS_DMA_ALLOCNOW | BUS_DMA_NOWAIT,
&sc->tx_map)) != 0) {
aprint_error("%s: can't create tx DMA map, error = %d\n",
sc->sc_dev.dv_xname, ret);
goto fail3;
}
if ((ret = bus_dmamap_load(sc->dmat, sc->tx_map, sc->sc_sendbuf,
IAVC_DMA_SIZE, NULL, BUS_DMA_WRITE | BUS_DMA_NOWAIT)) != 0) {
aprint_error("%s: can't load tx DMA map, error = %d\n",
sc->sc_dev.dv_xname, ret);
goto fail4;
}
/* do the same for RX */
if ((ret = bus_dmamem_alloc(sc->dmat, IAVC_DMA_SIZE, PAGE_SIZE, 0,
&sc->rxseg, 1, &sc->nrxsegs, BUS_DMA_ALLOCNOW)) != 0) {
aprint_error("%s: can't allocate rx DMA memory, error = %d\n",
sc->sc_dev.dv_xname, ret);
goto fail5;
}
if ((ret = bus_dmamem_map(sc->dmat, &sc->rxseg, sc->nrxsegs,
IAVC_DMA_SIZE, &sc->sc_recvbuf, BUS_DMA_NOWAIT)) != 0) {
aprint_error("%s: can't map rx DMA memory, error = %d\n",
sc->sc_dev.dv_xname, ret);
goto fail6;
}
if ((ret = bus_dmamap_create(sc->dmat, IAVC_DMA_SIZE, 1, IAVC_DMA_SIZE,
0, BUS_DMA_ALLOCNOW | BUS_DMA_NOWAIT, &sc->rx_map)) != 0) {
aprint_error("%s: can't create rx DMA map, error = %d\n",
sc->sc_dev.dv_xname, ret);
goto fail7;
}
if ((ret = bus_dmamap_load(sc->dmat, sc->rx_map, sc->sc_recvbuf,
IAVC_DMA_SIZE, NULL, BUS_DMA_READ | BUS_DMA_NOWAIT)) != 0) {
aprint_error("%s: can't load rx DMA map, error = %d\n",
sc->sc_dev.dv_xname, ret);
goto fail8;
}
if (capi_ll_attach(&sc->sc_capi, sc->sc_dev.dv_xname, pp->name)) {
aprint_error("%s: capi attach failed\n", sc->sc_dev.dv_xname);
goto fail9;
}
return;
/* release resources in case of failed attach */
fail9:
bus_dmamap_unload(sc->dmat, sc->rx_map);
fail8:
bus_dmamap_destroy(sc->dmat, sc->rx_map);
fail7:
bus_dmamem_unmap(sc->dmat, sc->sc_recvbuf, IAVC_DMA_SIZE);
fail6:
bus_dmamem_free(sc->dmat, &sc->rxseg, sc->nrxsegs);
fail5:
bus_dmamap_unload(sc->dmat, sc->tx_map);
fail4:
bus_dmamap_destroy(sc->dmat, sc->tx_map);
fail3:
bus_dmamem_unmap(sc->dmat, sc->sc_sendbuf, IAVC_DMA_SIZE);
fail2:
bus_dmamem_free(sc->dmat, &sc->txseg, sc->ntxsegs);
fail1:
pci_intr_disestablish(psc->sc_pc, psc->sc_ih);
return;
}
int
iavc_pci_intr(void *arg)
{
struct iavc_softc *sc = arg;
return iavc_handle_intr(sc);
}
#if 0
static int
iavc_pci_detach(struct device * self, int flags)
{
struct iavc_pci_softc *psc = (void *) self;
bus_space_unmap(psc->sc_iavc.sc_mem_bt, psc->sc_iavc.sc_mem_bh,
psc->mem_size);
bus_space_free(psc->sc_iavc.sc_mem_bt, psc->sc_iavc.sc_mem_bh,
psc->mem_size);
bus_space_unmap(psc->sc_iavc.sc_io_bt, psc->sc_iavc.sc_io_bh,
psc->io_size);
bus_space_free(psc->sc_iavc.sc_io_bt, psc->sc_iavc.sc_io_bh,
psc->io_size);
pci_intr_disestablish(psc->sc_pc, psc->sc_ih);
/* XXX: capi detach?!? */
return 0;
}
static int
iavc_pci_activate(struct device * self, enum devact act)
{
struct iavc_softc *psc = (struct iavc_softc *) self;
int error, s;
error = 0;
s = splnet();
switch (act) {
case DVACT_ACTIVATE:
error = EOPNOTSUPP;
break;
case DVACT_DEACTIVATE:
/* XXX */
break;
}
splx(s);
return error;
}
#endif