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NetBSD/sys/dev/cardbus/rbus_ppb.c

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/* $NetBSD: rbus_ppb.c,v 1.10 2003/11/24 06:11:56 lukem Exp $ */
/*
* Copyright (c) 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Michael Richardson <mcr@sandelman.ottawa.on.ca>
*
* 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 the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation 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 THE NETBSD FOUNDATION, INC. 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.
*/
/*
* CardBus front-end for the Intel/Digital DECchip 21152 PCI-PCI bridge
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: rbus_ppb.c,v 1.10 2003/11/24 06:11:56 lukem Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <sys/errno.h>
#include <sys/device.h>
#if NRND > 0
#include <sys/rnd.h>
#endif
#include <machine/endian.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcidevs.h>
#include <dev/pci/ppbreg.h>
#include <dev/ic/i82365reg.h>
#include <dev/ic/i82365var.h>
#include <dev/pci/pccbbreg.h>
#include <dev/pci/pccbbvar.h>
#include <dev/cardbus/cardbusvar.h>
#include <dev/cardbus/cardbusdevs.h>
#include <i386/pci/pci_addr_fixup.h>
#include <i386/pci/pci_bus_fixup.h>
#include <i386/pci/pci_intr_fixup.h>
#include <i386/pci/pcibios.h>
struct ppb_softc;
static int ppb_cardbus_match __P((struct device *, struct cfdata *, void *));
static void ppb_cardbus_attach __P((struct device *, struct device *, void *));
static int ppb_cardbus_detach __P((struct device * self, int flags));
/*static*/ void ppb_cardbus_setup __P((struct ppb_softc * sc));
/*static*/ int ppb_cardbus_enable __P((struct ppb_softc * sc));
/*static*/ void ppb_cardbus_disable __P((struct ppb_softc * sc));
static int ppb_activate __P((struct device *self, enum devact act));
int rppbprint __P((void *aux, const char *pnp));
int rbus_intr_fixup __P((pci_chipset_tag_t pc, int minbus,
int maxbus, int line));
void rbus_do_header_fixup __P((pci_chipset_tag_t pc, pcitag_t tag,
void *context));
static void rbus_pci_phys_allocate __P((pci_chipset_tag_t pc,
pcitag_t tag,
void *context));
static int rbus_do_phys_allocate __P((pci_chipset_tag_t pc,
pcitag_t tag,
int mapreg,
void *ctx,
int type,
bus_addr_t *addr,
bus_size_t size));
static void rbus_pci_phys_countspace __P((pci_chipset_tag_t pc,
pcitag_t tag,
void *context));
static int rbus_do_phys_countspace __P((pci_chipset_tag_t pc,
pcitag_t tag,
int mapreg,
void *ctx,
int type,
bus_addr_t *addr,
bus_size_t size));
unsigned int rbus_round_up __P((unsigned int size, unsigned int min));
struct ppb_cardbus_softc {
struct device sc_dev;
pcitag_t sc_tag;
int foo;
};
CFATTACH_DECL(rbus_ppb, sizeof(struct ppb_cardbus_softc),
ppb_cardbus_match, ppb_cardbus_attach, ppb_cardbus_detach, ppb_activate);
#ifdef CBB_DEBUG
int rbus_ppb_debug = 0; /* hack with kdb */
#define DPRINTF(X) if(rbus_ppb_debug) printf X
#else
#define DPRINTF(X)
#endif
static int
ppb_cardbus_match(parent, match, aux)
struct device *parent;
struct cfdata *match;
void *aux;
{
struct cardbus_attach_args *ca = aux;
if (CARDBUS_VENDOR(ca->ca_id) == PCI_VENDOR_DEC &&
CARDBUS_PRODUCT(ca->ca_id) == PCI_PRODUCT_DEC_21152)
return (1);
if(PCI_CLASS(ca->ca_class) == PCI_CLASS_BRIDGE &&
PCI_SUBCLASS(ca->ca_class) == PCI_SUBCLASS_BRIDGE_PCI) {
/* XXX */
printf("recognizing generic bridge chip\n");
}
return (0);
}
int
rppbprint(aux, pnp)
void *aux;
const char *pnp;
{
struct pcibus_attach_args *pba = aux;
/* only PCIs can attach to PPBs; easy. */
if (pnp)
aprint_normal("pci at %s", pnp);
aprint_normal(" bus %d (rbus)", pba->pba_bus);
return (UNCONF);
}
int
rbus_intr_fixup(pci_chipset_tag_t pc,
int minbus,
int maxbus,
int line)
{
pci_device_foreach_min(pc, minbus,
maxbus, rbus_do_header_fixup, (void *)&line);
return 0;
}
void
rbus_do_header_fixup(pc, tag, context)
pci_chipset_tag_t pc;
pcitag_t tag;
void *context;
{
int pin, irq;
int bus, device, function;
pcireg_t intr, id;
int *pline = (int *)context;
int line = *pline;
pci_decompose_tag(pc, tag, &bus, &device, &function);
id = pci_conf_read(pc, tag, PCI_ID_REG);
intr = pci_conf_read(pc, tag, PCI_INTERRUPT_REG);
pin = PCI_INTERRUPT_PIN(intr);
irq = PCI_INTERRUPT_LINE(intr);
#if 0
printf("do_header %02x:%02x:%02x pin=%d => line %d\n",
bus, device, function, pin, line);
#endif
intr &= ~(PCI_INTERRUPT_LINE_MASK << PCI_INTERRUPT_LINE_SHIFT);
intr |= (line << PCI_INTERRUPT_LINE_SHIFT);
pci_conf_write(pc, tag, PCI_INTERRUPT_REG, intr);
}
/*
* This function takes a range of PCI bus numbers and
* allocates space for all devices found in this space (the BARs) from
* the rbus space maps (I/O and memory).
*
* It assumes that "rbus" is defined. The whole concept does.
*
* It uses pci_device_foreach_min() to call rbus_pci_phys_allocate.
* This function is mostly stolen from
* pci_addr_fixup.c:pciaddr_resource_reserve.
*
*/
struct rbus_pci_addr_fixup_context {
struct ppb_cardbus_softc *csc;
cardbus_chipset_tag_t ct;
struct cardbus_softc *sc;
struct cardbus_attach_args *caa;
int minbus;
int maxbus;
bus_size_t *bussize_ioreqs;
bus_size_t *bussize_memreqs;
rbus_tag_t *iobustags;
rbus_tag_t *membustags;
};
unsigned int
rbus_round_up(unsigned int size, unsigned int min)
{
unsigned int power2;
if(size == 0) {
return 0;
}
power2=min;
while(power2 < (1 << 31) &&
power2 < size) {
power2 = power2 << 1;
}
return power2;
}
static void
rbus_pci_addr_fixup(struct ppb_cardbus_softc *csc,
cardbus_chipset_tag_t ct,
struct cardbus_softc *sc,
pci_chipset_tag_t pc,
struct cardbus_attach_args *caa,
int minbus, int maxbus)
{
struct rbus_pci_addr_fixup_context rct;
int size, busnum;
bus_addr_t start;
bus_space_handle_t handle;
u_int32_t reg;
rct.csc=csc;
rct.ct=ct;
rct.sc=sc;
rct.caa=caa;
rct.minbus = minbus;
rct.maxbus = maxbus;
size = sizeof(bus_size_t)*(maxbus+1);
rct.bussize_ioreqs = alloca(size);
rct.bussize_memreqs = alloca(size);
rct.iobustags = alloca(maxbus * sizeof(rbus_tag_t));
rct.membustags = alloca(maxbus * sizeof(rbus_tag_t));
bzero(rct.bussize_ioreqs, size);
bzero(rct.bussize_memreqs, size);
printf("%s: sizing buses %d-%d\n",
rct.csc->sc_dev.dv_xname,
minbus, maxbus);
pci_device_foreach_min(pc, minbus, maxbus,
rbus_pci_phys_countspace, &rct);
/*
* we need to determine amount of address space for each
* bus. To do this, we have to roll up amounts and then
* we need to divide up the cardbus's extent to allocate
* some space to each bus.
*/
for(busnum=maxbus; busnum > minbus; busnum--) {
if(pci_bus_parent[busnum] != 0) {
if(pci_bus_parent[busnum] < minbus ||
pci_bus_parent[busnum] >= maxbus) {
printf("%s: bus %d has illegal parent %d\n",
rct.csc->sc_dev.dv_xname,
busnum, pci_bus_parent[busnum]);
continue;
}
/* first round amount of space up */
rct.bussize_ioreqs[busnum] =
rbus_round_up(rct.bussize_ioreqs[busnum], PPB_IO_MIN);
rct.bussize_ioreqs[pci_bus_parent[busnum]] +=
rct.bussize_ioreqs[busnum];
rct.bussize_memreqs[busnum] =
rbus_round_up(rct.bussize_memreqs[busnum], PPB_MEM_MIN);
rct.bussize_memreqs[pci_bus_parent[busnum]] +=
rct.bussize_memreqs[busnum];
}
}
rct.bussize_ioreqs[minbus] =
rbus_round_up(rct.bussize_ioreqs[minbus], 4096);
rct.bussize_memreqs[minbus] =
rbus_round_up(rct.bussize_memreqs[minbus], 8);
printf("%s: total needs IO %08lx and MEM %08lx\n",
rct.csc->sc_dev.dv_xname,
rct.bussize_ioreqs[minbus], rct.bussize_memreqs[minbus]);
if(!caa->ca_rbus_iot) {
panic("no iot bus");
}
if(rct.bussize_ioreqs[minbus]) {
if(rbus_space_alloc(caa->ca_rbus_iot, 0,
rct.bussize_ioreqs[minbus],
rct.bussize_ioreqs[minbus]-1 /* mask */,
rct.bussize_ioreqs[minbus] /* align */,
/* flags */ 0,
&start,
&handle) != 0) {
panic("rbus_ppb: can not allocate %ld bytes in IO bus %d",
rct.bussize_ioreqs[minbus], minbus);
}
rct.iobustags[minbus]=rbus_new(caa->ca_rbus_iot,
start,
rct.bussize_ioreqs[minbus],
0 /* offset to add to physical address
to make processor address */,
RBUS_SPACE_DEDICATE);
}
if(rct.bussize_memreqs[minbus]) {
if(rbus_space_alloc(caa->ca_rbus_memt, 0,
rct.bussize_memreqs[minbus],
rct.bussize_memreqs[minbus]-1 /* mask */,
rct.bussize_memreqs[minbus] /* align */,
/* flags */ 0,
&start,
&handle) != 0) {
panic("%s: can not allocate %ld bytes in MEM bus %d",
rct.csc->sc_dev.dv_xname,
rct.bussize_memreqs[minbus], minbus);
}
rct.membustags[minbus]=rbus_new(caa->ca_rbus_memt,
start,
rct.bussize_memreqs[minbus],
0 /* offset to add to physical
address to make processor
address */,
RBUS_SPACE_DEDICATE);
}
for(busnum=minbus+1; busnum <= maxbus; busnum++) {
int busparent;
busparent = pci_bus_parent[busnum];
printf("%s: bus %d (parent=%d) needs IO %08lx and MEM %08lx\n",
rct.csc->sc_dev.dv_xname,
busnum,
busparent,
rct.bussize_ioreqs[busnum],
rct.bussize_memreqs[busnum]);
if(busparent > maxbus) {
panic("rbus_ppb: illegal parent");
}
if(rct.bussize_ioreqs[busnum]) {
if(rbus_space_alloc(rct.iobustags[busparent],
0,
rct.bussize_ioreqs[busnum],
rct.bussize_ioreqs[busnum]-1 /*mask */,
rct.bussize_ioreqs[busnum] /* align */,
/* flags */ 0,
&start,
&handle) != 0) {
panic("rbus_ppb: can not allocate %ld bytes in IO bus %d",
rct.bussize_ioreqs[busnum], busnum);
}
rct.iobustags[busnum]=rbus_new(rct.iobustags[busparent],
start,
rct.bussize_ioreqs[busnum],
0 /* offset to add to physical
address
to make processor address */,
RBUS_SPACE_DEDICATE);
/* program the bridge */
/* enable I/O space */
reg = pci_conf_read(pc, pci_bus_tag[busnum],
PCI_COMMAND_STATUS_REG);
reg |= PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MASTER_ENABLE;
pci_conf_write(pc, pci_bus_tag[busnum],
PCI_COMMAND_STATUS_REG, reg);
/* now init the limit register for I/O */
pci_conf_write(pc, pci_bus_tag[busnum], PPB_REG_IOSTATUS,
(((start & 0xf000) >> 8) << PPB_IOBASE_SHIFT) |
((((start +
rct.bussize_ioreqs[busnum] +
4095) & 0xf000) >> 8) << PPB_IOLIMIT_SHIFT));
}
if(rct.bussize_memreqs[busnum]) {
if(rbus_space_alloc(rct.membustags[busparent],
0,
rct.bussize_memreqs[busnum] /* size */,
rct.bussize_memreqs[busnum]-1 /*mask */,
rct.bussize_memreqs[busnum] /* align */,
/* flags */ 0,
&start,
&handle) != 0) {
panic("rbus_ppb: can not allocate %ld bytes in MEM bus %d",
rct.bussize_memreqs[busnum], busnum);
}
rct.membustags[busnum]=rbus_new(rct.membustags[busparent],
start,
rct.bussize_memreqs[busnum],
0 /* offset to add to physical
address to make processor
address */,
RBUS_SPACE_DEDICATE);
/* program the bridge */
/* enable memory space */
reg = pci_conf_read(pc, pci_bus_tag[busnum],
PCI_COMMAND_STATUS_REG);
reg |= PCI_COMMAND_MEM_ENABLE | PCI_COMMAND_MASTER_ENABLE;
pci_conf_write(pc, pci_bus_tag[busnum],
PCI_COMMAND_STATUS_REG, reg);
/* now init the limit register for memory */
pci_conf_write(pc, pci_bus_tag[busnum], PPB_REG_MEM,
((start & PPB_MEM_MASK)
>> PPB_MEM_SHIFT) << PPB_MEMBASE_SHIFT |
(((start +
rct.bussize_memreqs[busnum] +
PPB_MEM_MIN-1) >> PPB_MEM_SHIFT)
<< PPB_MEMLIMIT_SHIFT));
/* and set the prefetchable limits as well */
pci_conf_write(pc, pci_bus_tag[busnum], PPB_REG_PREFMEM,
((start & PPB_MEM_MASK)
>> PPB_MEM_SHIFT) << PPB_MEMBASE_SHIFT |
(((start +
rct.bussize_memreqs[busnum] +
PPB_MEM_MIN-1) >> PPB_MEM_SHIFT)
<< PPB_MEMLIMIT_SHIFT));
/* pci_conf_print(pc, pci_bus_tag[busnum], NULL); */
}
}
printf("%s: configuring buses %d-%d\n",
rct.csc->sc_dev.dv_xname,
minbus, maxbus);
pci_device_foreach_min(pc, minbus, maxbus,
rbus_pci_phys_allocate, &rct);
}
static void
rbus_pci_phys_countspace(pc, tag, context)
pci_chipset_tag_t pc;
pcitag_t tag;
void *context;
{
int bus, device, function;
struct rbus_pci_addr_fixup_context *rct =
(struct rbus_pci_addr_fixup_context *)context;
pci_decompose_tag(pc, tag, &bus, &device, &function);
printf("%s: configuring device %02x:%02x:%02x\n",
rct->csc->sc_dev.dv_xname,
bus, device, function);
pciaddr_resource_manage(pc, tag,
rbus_do_phys_countspace, context);
}
int
rbus_do_phys_countspace(pc, tag, mapreg, ctx, type, addr, size)
pci_chipset_tag_t pc;
pcitag_t tag;
void *ctx;
int mapreg, type;
bus_addr_t *addr;
bus_size_t size;
{
struct rbus_pci_addr_fixup_context *rct =
(struct rbus_pci_addr_fixup_context *)ctx;
int bus, device, function;
pci_decompose_tag(pc, tag, &bus, &device, &function);
if(size > (1<<24)) {
printf("%s: skipping huge space request of size=%08x\n",
rct->csc->sc_dev.dv_xname, (unsigned int)size);
return 0;
}
if(PCI_MAPREG_TYPE(type) == PCI_MAPREG_TYPE_IO) {
rct->bussize_ioreqs[bus] += size;
} else {
rct->bussize_memreqs[bus]+= size;
}
return 0;
}
static void
rbus_pci_phys_allocate(pc, tag, context)
pci_chipset_tag_t pc;
pcitag_t tag;
void *context;
{
int bus, device, function, command;
struct rbus_pci_addr_fixup_context *rct =
(struct rbus_pci_addr_fixup_context *)context;
//cardbus_chipset_tag_t ct = rct->ct;
// struct cardbus_softc *sc = rct->sc;
pci_decompose_tag(pc, tag, &bus, &device, &function);
printf("%s: configuring device %02x:%02x:%02x\n",
rct->csc->sc_dev.dv_xname,
bus, device, function);
pciaddr_resource_manage(pc, tag,
rbus_do_phys_allocate, context);
/* now turn the device's memory and I/O on */
command = pci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG);
command |= PCI_COMMAND_IO_ENABLE|PCI_COMMAND_MEM_ENABLE;
pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG, command);
}
int
rbus_do_phys_allocate(pc, tag, mapreg, ctx, type, addr, size)
pci_chipset_tag_t pc;
pcitag_t tag;
void *ctx;
int mapreg, type;
bus_addr_t *addr;
bus_size_t size;
{
struct rbus_pci_addr_fixup_context *rct =
(struct rbus_pci_addr_fixup_context *)ctx;
cardbus_chipset_tag_t ct = rct->ct;
struct cardbus_softc *sc = rct->sc;
cardbus_function_t *cf = sc->sc_cf;
rbus_tag_t rbustag;
bus_space_tag_t bustag;
bus_addr_t mask = size -1;
bus_addr_t base = 0;
bus_space_handle_t handle;
int busflags = 0;
int flags = 0;
char *bustype;
int bus, device, function;
pci_decompose_tag(pc, tag, &bus, &device, &function);
/*
* some devices come up with garbage in them (Tulip?)
* we are in charge here, so give them address
* space anyway.
*
* XXX this may be due to no secondary PCI reset!!!
*/
#if 0
if (*addr) {
printf("Already allocated space at %08x\n",
(unsigned int)*addr);
return (0);
}
#endif
if(size > (1<<24)) {
printf("%s: skipping huge space request of size=%08x\n",
rct->csc->sc_dev.dv_xname, (unsigned int)size);
return 0;
}
if(PCI_MAPREG_TYPE(type) == PCI_MAPREG_TYPE_IO) {
bustag = sc->sc_iot;
rbustag = rct->iobustags[bus];
bustype = "io";
} else {
bustag = sc->sc_memt;
rbustag = rct->membustags[bus];
bustype = "mem";
}
if((*cf->cardbus_space_alloc)(ct, rbustag, base, size,
mask, size, busflags|flags,
addr, &handle)) {
printf("%s: no available resources (size=%08x) for bar %2d. fixup failed\n",
rct->csc->sc_dev.dv_xname, (unsigned int)size, mapreg);
*addr = 0;
pci_conf_write(pc, tag, mapreg, *addr);
return (1);
}
printf("%s: alloc %s space of size %08x for %02d:%02d:%02d -> %08x\n",
rct->csc->sc_dev.dv_xname,
bustype,
(unsigned int)size,
bus, device, function, (unsigned int)*addr);
/* write new address to PCI device configuration header */
pci_conf_write(pc, tag, mapreg, *addr);
/* check */
{
DPRINTF(("%s: pci_addr_fixup: ",
rct->csc->sc_dev.dv_xname));
#ifdef CBB_DEBUG
if(rbus_ppb_debug) { pciaddr_print_devid(pc, tag); }
#endif
}
/* double check that the value got inserted correctly */
if (pciaddr_ioaddr(pci_conf_read(pc, tag, mapreg)) != *addr) {
pci_conf_write(pc, tag, mapreg, 0); /* clear */
printf("%s: fixup failed. (new address=%#x)\n",
rct->csc->sc_dev.dv_xname,
(unsigned)*addr);
return (1);
}
DPRINTF(("new address 0x%08x\n",
(unsigned)*addr));
return (0);
}
static void
ppb_cardbus_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct ppb_cardbus_softc *csc = (struct ppb_cardbus_softc *) self;
struct cardbus_softc *parent_sc =
(struct cardbus_softc *) csc->sc_dev.dv_parent;
struct cardbus_attach_args *ca = aux;
cardbus_devfunc_t ct = ca->ca_ct;
cardbus_chipset_tag_t cc = ct->ct_cc;
cardbus_function_tag_t cf = ct->ct_cf;
struct pccbb_softc *psc = (struct pccbb_softc *)cc;
struct pcibus_attach_args pba;
char devinfo[256];
pcireg_t busdata;
int mybus, rv;
u_int16_t pciirq;
int minbus, maxbus;
mybus = ct->ct_bus;
pciirq = 0;
rv = 0;
/* shut up compiler */
csc->foo=parent_sc->sc_intrline;
pci_devinfo(ca->ca_id, ca->ca_class, 0, devinfo);
printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(ca->ca_class));
csc->sc_tag = ca->ca_tag; /* XXX cardbustag_t == pcitag_t */
busdata = cardbus_conf_read(cc, cf, ca->ca_tag, PPB_REG_BUSINFO);
minbus = pcibios_max_bus;
maxbus = minbus; /* XXX; gcc */
if (PPB_BUSINFO_SECONDARY(busdata) == 0) {
printf("%s: not configured by system firmware calling pci_bus_fixup(%d)\n",
self->dv_xname, 0);
/*
* first, pull the reset wire on the secondary bridge
* to clear all devices
*/
busdata = cardbus_conf_read(cc, cf, ca->ca_tag,
PPB_REG_BRIDGECONTROL);
cardbus_conf_write(cc, cf, ca->ca_tag, PPB_REG_BRIDGECONTROL,
busdata | PPB_BC_SECONDARY_RESET);
delay(1);
cardbus_conf_write(cc, cf, ca->ca_tag, PPB_REG_BRIDGECONTROL,
busdata);
/* then go initialize the bridge control registers */
maxbus = pci_bus_fixup(psc->sc_pc, 0);
}
busdata = cardbus_conf_read(cc, cf, ca->ca_tag, PPB_REG_BUSINFO);
if(PPB_BUSINFO_SECONDARY(busdata) == 0) {
printf("%s: still not configured, not fixable.\n",
self->dv_xname);
return;
}
#if 0
minbus = PPB_BUSINFO_SECONDARY(busdata);
maxbus = PPB_BUSINFO_SUBORDINATE(busdata);
#endif
/* now, go and assign addresses for the new devices */
rbus_pci_addr_fixup(csc, cc, parent_sc,
psc->sc_pc,
ca,
minbus, maxbus);
/*
* now configure all connected devices to the IRQ which
* was assigned to this slot, as they will all arrive from
* that IRQ.
*/
rbus_intr_fixup(psc->sc_pc, minbus, maxbus, ca->ca_intrline);
/*
* enable direct routing of interrupts. We do this because
* we can not manage to get pccb_intr_establish() called until
* PCI subsystem is merged with rbus. The major thing that this
* routine does is avoid calling the driver's interrupt routine
* when the card has been removed.
*
* The rbus_ppb.c can not cope with card desertions until the merging
* anyway.
*/
pccbb_intr_route(psc);
/*
* Attach the PCI bus than hangs off of it.
*
* XXX Don't pass-through Memory Read Multiple. Should we?
* XXX Consult the spec...
*/
pba.pba_busname = "pci";
pba.pba_iot = ca->ca_iot;
pba.pba_memt = ca->ca_memt;
pba.pba_dmat = ca->ca_dmat;
pba.pba_pc = psc->sc_pc;
pba.pba_flags = PCI_FLAGS_IO_ENABLED|PCI_FLAGS_MEM_ENABLED;
pba.pba_bus = PPB_BUSINFO_SECONDARY(busdata);
pba.pba_bridgetag = &csc->sc_tag;
/*pba.pba_intrswiz = parent_sc->sc_intrswiz; */
pba.pba_intrtag = psc->sc_pa.pa_intrtag;
config_found(self, &pba, rppbprint);
}
void
ppb_cardbus_setup(struct ppb_softc * sc)
{
struct ppb_cardbus_softc *csc = (struct ppb_cardbus_softc *) sc;
#if 0
cardbus_chipset_tag_t cc = psc->sc_cc;
cardbus_function_tag_t cf = psc->sc_cf;
#endif
/* shut up compiler */
csc->foo=2;
printf("ppb_cardbus_setup called\n");
#if 0
/* not sure what to do here */
cardbustag_t tag = cardbus_make_tag(cc, cf, csc->ct->ct_bus,
csc->ct->ct_dev, csc->ct->ct_func);
command = Cardbus_conf_read(csc->ct, tag, CARDBUS_COMMAND_STATUS_REG);
if (csc->base0_reg) {
Cardbus_conf_write(csc->ct, tag,
CARDBUS_BASE0_REG, csc->base0_reg);
(cf->cardbus_ctrl) (cc, CARDBUS_MEM_ENABLE);
command |= CARDBUS_COMMAND_MEM_ENABLE |
CARDBUS_COMMAND_MASTER_ENABLE;
} else if (csc->base1_reg) {
Cardbus_conf_write(csc->ct, tag,
CARDBUS_BASE1_REG, csc->base1_reg);
(cf->cardbus_ctrl) (cc, CARDBUS_IO_ENABLE);
command |= (CARDBUS_COMMAND_IO_ENABLE |
CARDBUS_COMMAND_MASTER_ENABLE);
}
(cf->cardbus_ctrl) (cc, CARDBUS_BM_ENABLE);
/* enable the card */
Cardbus_conf_write(csc->ct, tag, CARDBUS_COMMAND_STATUS_REG, command);
#endif
}
int
ppb_cardbus_enable(struct ppb_softc * sc)
{
#if 0
struct ppb_cardbus_softc *csc = (struct fxp_cardbus_softc *) sc;
struct cardbus_softc *psc =
(struct cardbus_softc *) sc->sc_dev.dv_parent;
cardbus_chipset_tag_t cc = psc->sc_cc;
cardbus_function_tag_t cf = psc->sc_cf;
Cardbus_function_enable(csc->ct);
fxp_cardbus_setup(sc);
/* Map and establish the interrupt. */
sc->sc_ih = cardbus_intr_establish(cc, cf, psc->sc_intrline, IPL_NET,
fxp_intr, sc);
if (NULL == sc->sc_ih) {
printf("%s: couldn't establish interrupt\n",
sc->sc_dev.dv_xname);
return 1;
}
printf("%s: interrupting at %d\n", sc->sc_dev.dv_xname,
psc->sc_intrline);
#endif
return 0;
}
void
ppb_cardbus_disable(struct ppb_softc * sc)
{
#if 0
struct cardbus_softc *psc =
(struct cardbus_softc *) sc->sc_dev.dv_parent;
cardbus_chipset_tag_t cc = psc->sc_cc;
cardbus_function_tag_t cf = psc->sc_cf;
/* Remove interrupt handler. */
cardbus_intr_disestablish(cc, cf, sc->sc_ih);
Cardbus_function_disable(((struct fxp_cardbus_softc *) sc)->ct);
#endif
}
static int
ppb_cardbus_detach(self, flags)
struct device *self;
int flags;
{
/* struct ppb_softc *sc = (struct ppb_softc *) self;*/
struct ppb_cardbus_softc *csc = (struct ppb_cardbus_softc *) self;
#if 0
struct cardbus_devfunc *ct = csc->ct;
int rv, reg;
#ifdef DIAGNOSTIC
if (ct == NULL)
panic("%s: data structure lacks", sc->sc_dev.dv_xname);
#endif
rv = fxp_detach(sc);
if (rv == 0) {
/*
* Unhook the interrupt handler.
*/
cardbus_intr_disestablish(ct->ct_cc, ct->ct_cf, sc->sc_ih);
/*
* release bus space and close window
*/
if (csc->base0_reg)
reg = CARDBUS_BASE0_REG;
else
reg = CARDBUS_BASE1_REG;
Cardbus_mapreg_unmap(ct, reg, sc->sc_st, sc->sc_sh, csc->size);
}
return (rv);
#endif
csc->foo=1;
return 0;
}
int
ppb_activate(self, act)
struct device *self;
enum devact act;
{
printf("ppb_activate called\n");
return 0;
}
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