freebsd-nq/sys/dev/firewire/fwohci_pci.c
Warner Losh 347934fa63 Sometimes cardbus attachments don't attach, so while we track down
this problem put these lines back in.  While they should be
unnecessary, they appear to be sometimes necessary.

Reviewed in concept: dfr
Approved by: re (scottl@)
2003-11-28 05:28:29 +00:00

466 lines
12 KiB
C

/*
* Copyright (c) 2003 Hidetoshi Shimokawa
* Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the acknowledgement as bellow:
*
* This product includes software developed by K. Kobayashi and H. SHimokawa
*
* 4. 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.
*
* $FreeBSD$
*/
#define BOUNCE_BUFFER_TEST 0
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <sys/queue.h>
#include <machine/bus.h>
#include <sys/rman.h>
#include <sys/malloc.h>
#if __FreeBSD_version >= 501102
#include <sys/lock.h>
#include <sys/mutex.h>
#endif
#include <machine/resource.h>
#if __FreeBSD_version < 500000
#include <machine/clock.h> /* for DELAY() */
#endif
#if __FreeBSD_version < 500000
#include <pci/pcivar.h>
#include <pci/pcireg.h>
#else
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#endif
#include <dev/firewire/firewire.h>
#include <dev/firewire/firewirereg.h>
#include <dev/firewire/fwdma.h>
#include <dev/firewire/fwohcireg.h>
#include <dev/firewire/fwohcivar.h>
static int fwohci_pci_attach(device_t self);
static int fwohci_pci_detach(device_t self);
/*
* The probe routine.
*/
static int
fwohci_pci_probe( device_t dev )
{
#if 1
u_int32_t id;
id = pci_get_devid(dev);
if (id == (FW_VENDORID_NEC | FW_DEVICE_UPD861)) {
device_set_desc(dev, "NEC uPD72861");
return 0;
}
if (id == (FW_VENDORID_NEC | FW_DEVICE_UPD871)) {
device_set_desc(dev, "NEC uPD72871/2");
return 0;
}
if (id == (FW_VENDORID_NEC | FW_DEVICE_UPD72870)) {
device_set_desc(dev, "NEC uPD72870");
return 0;
}
if (id == (FW_VENDORID_NEC | FW_DEVICE_UPD72874)) {
device_set_desc(dev, "NEC uPD72874");
return 0;
}
if (id == (FW_VENDORID_TI | FW_DEVICE_TITSB22)) {
device_set_desc(dev, "Texas Instruments TSB12LV22");
return 0;
}
if (id == (FW_VENDORID_TI | FW_DEVICE_TITSB23)) {
device_set_desc(dev, "Texas Instruments TSB12LV23");
return 0;
}
if (id == (FW_VENDORID_TI | FW_DEVICE_TITSB26)) {
device_set_desc(dev, "Texas Instruments TSB12LV26");
return 0;
}
if (id == (FW_VENDORID_TI | FW_DEVICE_TITSB43)) {
device_set_desc(dev, "Texas Instruments TSB43AA22");
return 0;
}
if (id == (FW_VENDORID_TI | FW_DEVICE_TITSB43A)) {
device_set_desc(dev, "Texas Instruments TSB43AB22/A");
return 0;
}
if (id == (FW_VENDORID_TI | FW_DEVICE_TITSB43AB23)) {
device_set_desc(dev, "Texas Instruments TSB43AB23");
return 0;
}
if (id == (FW_VENDORID_TI | FW_DEVICE_TITSB82AA2)) {
device_set_desc(dev, "Texas Instruments TSB82AA2");
return 0;
}
if (id == (FW_VENDORID_TI | FW_DEVICE_TIPCI4450)) {
device_set_desc(dev, "Texas Instruments PCI4450");
return 0;
}
if (id == (FW_VENDORID_TI | FW_DEVICE_TIPCI4410A)) {
device_set_desc(dev, "Texas Instruments PCI4410A");
return 0;
}
if (id == (FW_VENDORID_TI | FW_DEVICE_TIPCI4451)) {
device_set_desc(dev, "Texas Instruments PCI4451");
return 0;
}
if (id == (FW_VENDORID_SONY | FW_DEVICE_CX3022)) {
device_set_desc(dev, "Sony CX3022");
return 0;
}
if (id == (FW_VENDORID_VIA | FW_DEVICE_VT6306)) {
device_set_desc(dev, "VIA VT6306");
return 0;
}
if (id == (FW_VENDORID_RICOH | FW_DEVICE_R5C551)) {
device_set_desc(dev, "Ricoh R5C551");
return 0;
}
if (id == (FW_VENDORID_RICOH | FW_DEVICE_R5C552)) {
device_set_desc(dev, "Ricoh R5C552");
return 0;
}
if (id == (FW_VENDORID_APPLE | FW_DEVICE_PANGEA)) {
device_set_desc(dev, "Apple Pangea");
return 0;
}
if (id == (FW_VENDORID_APPLE | FW_DEVICE_UNINORTH)) {
device_set_desc(dev, "Apple UniNorth");
return 0;
}
if (id == (FW_VENDORID_LUCENT | FW_DEVICE_FW322)) {
device_set_desc(dev, "Lucent FW322/323");
return 0;
}
#endif
if (pci_get_class(dev) == PCIC_SERIALBUS
&& pci_get_subclass(dev) == PCIS_SERIALBUS_FW
&& pci_get_progif(dev) == PCI_INTERFACE_OHCI) {
device_printf(dev, "vendor=%x, dev=%x\n", pci_get_vendor(dev),
pci_get_device(dev));
device_set_desc(dev, "1394 Open Host Controller Interface");
return 0;
}
return ENXIO;
}
#if __FreeBSD_version < 500000
static void
fwohci_dummy_intr(void *arg)
{
/* XXX do nothing */
}
#endif
static int
fwohci_pci_init(device_t self)
{
int olatency, latency, ocache_line, cache_line;
u_int16_t cmd;
cmd = pci_read_config(self, PCIR_COMMAND, 2);
cmd |= PCIM_CMD_MEMEN | PCIM_CMD_BUSMASTEREN | PCIM_CMD_MWRICEN |
PCIM_CMD_SERRESPEN | PCIM_CMD_PERRESPEN;
#if 1
cmd &= ~PCIM_CMD_MWRICEN;
#endif
pci_write_config(self, PCIR_COMMAND, cmd, 2);
latency = olatency = pci_read_config(self, PCIR_LATTIMER, 1);
#define DEF_LATENCY 0x20
if (olatency < DEF_LATENCY) {
latency = DEF_LATENCY;
pci_write_config(self, PCIR_LATTIMER, latency, 1);
}
cache_line = ocache_line = pci_read_config(self, PCIR_CACHELNSZ, 1);
#define DEF_CACHE_LINE 8
if (ocache_line < DEF_CACHE_LINE) {
cache_line = DEF_CACHE_LINE;
pci_write_config(self, PCIR_CACHELNSZ, cache_line, 1);
}
if (firewire_debug) {
device_printf(self, "latency timer %d -> %d.\n",
olatency, latency);
device_printf(self, "cache size %d -> %d.\n",
ocache_line, cache_line);
}
return 0;
}
static int
fwohci_pci_attach(device_t self)
{
fwohci_softc_t *sc = device_get_softc(self);
int err;
int rid, s;
#if __FreeBSD_version < 500000
int intr;
/* For the moment, put in a message stating what is wrong */
intr = pci_read_config(self, PCIR_INTLINE, 1);
if (intr == 0 || intr == 255) {
device_printf(self, "Invalid irq %d\n", intr);
#ifdef __i386__
device_printf(self, "Please switch PNP-OS to 'No' in BIOS\n");
#endif
}
#endif
if (bootverbose)
firewire_debug = bootverbose;
fwohci_pci_init(self);
rid = PCI_CBMEM;
sc->bsr = bus_alloc_resource(self, SYS_RES_MEMORY, &rid,
0, ~0, 1, RF_ACTIVE);
if (!sc->bsr) {
device_printf(self, "Could not map memory\n");
return ENXIO;
}
sc->bst = rman_get_bustag(sc->bsr);
sc->bsh = rman_get_bushandle(sc->bsr);
rid = 0;
sc->irq_res = bus_alloc_resource(self, SYS_RES_IRQ, &rid, 0, ~0, 1,
RF_SHAREABLE | RF_ACTIVE);
if (sc->irq_res == NULL) {
device_printf(self, "Could not allocate irq\n");
fwohci_pci_detach(self);
return ENXIO;
}
sc->fc.bdev = device_add_child(self, "firewire", -1);
if (!sc->fc.bdev) {
device_printf(self, "Could not add firewire device\n");
fwohci_pci_detach(self);
return ENOMEM;
}
device_set_ivars(sc->fc.bdev, sc);
err = bus_setup_intr(self, sc->irq_res,
#if FWOHCI_TASKQUEUE
INTR_TYPE_NET | INTR_MPSAFE,
#else
INTR_TYPE_NET,
#endif
(driver_intr_t *) fwohci_intr, sc, &sc->ih);
#if __FreeBSD_version < 500000
/* XXX splcam() should mask this irq for sbp.c*/
err = bus_setup_intr(self, sc->irq_res, INTR_TYPE_CAM,
(driver_intr_t *) fwohci_dummy_intr, sc, &sc->ih_cam);
/* XXX splbio() should mask this irq for physio()/fwmem_strategy() */
err = bus_setup_intr(self, sc->irq_res, INTR_TYPE_BIO,
(driver_intr_t *) fwohci_dummy_intr, sc, &sc->ih_bio);
#endif
if (err) {
device_printf(self, "Could not setup irq, %d\n", err);
fwohci_pci_detach(self);
return ENXIO;
}
err = bus_dma_tag_create(/*parent*/NULL, /*alignment*/1,
/*boundary*/0,
#if BOUNCE_BUFFER_TEST
/*lowaddr*/BUS_SPACE_MAXADDR_24BIT,
#else
/*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
#endif
/*highaddr*/BUS_SPACE_MAXADDR,
/*filter*/NULL, /*filterarg*/NULL,
/*maxsize*/0x100000,
/*nsegments*/0x20,
/*maxsegsz*/0x8000,
/*flags*/BUS_DMA_ALLOCNOW,
#if __FreeBSD_version >= 501102
/*lockfunc*/busdma_lock_mutex,
/*lockarg*/&Giant,
#endif
&sc->fc.dmat);
if (err != 0) {
printf("fwohci_pci_attach: Could not allocate DMA tag "
"- error %d\n", err);
return (ENOMEM);
}
err = fwohci_init(sc, self);
if (!err)
err = device_probe_and_attach(sc->fc.bdev);
if (err) {
device_printf(self, "FireWire init failed\n");
fwohci_pci_detach(self);
return EIO;
}
/* XXX
* Clear the bus reset event flag to start transactions even when
* interrupt is disabled during the boot process.
*/
DELAY(250); /* 2 cycles */
s = splfw();
fwohci_poll((void *)sc, 0, -1);
splx(s);
return 0;
}
static int
fwohci_pci_detach(device_t self)
{
fwohci_softc_t *sc = device_get_softc(self);
int s;
s = splfw();
if (sc->bsr)
fwohci_stop(sc, self);
bus_generic_detach(self);
if (sc->fc.bdev) {
device_delete_child(self, sc->fc.bdev);
sc->fc.bdev = NULL;
}
/* disable interrupts that might have been switched on */
if (sc->bst && sc->bsh)
bus_space_write_4(sc->bst, sc->bsh,
FWOHCI_INTMASKCLR, OHCI_INT_EN);
if (sc->irq_res) {
int err = bus_teardown_intr(self, sc->irq_res, sc->ih);
if (err)
/* XXX or should we panic? */
device_printf(self, "Could not tear down irq, %d\n",
err);
#if __FreeBSD_version < 500000
bus_teardown_intr(self, sc->irq_res, sc->ih_cam);
bus_teardown_intr(self, sc->irq_res, sc->ih_bio);
#endif
sc->ih = NULL;
}
if (sc->irq_res) {
bus_release_resource(self, SYS_RES_IRQ, 0, sc->irq_res);
sc->irq_res = NULL;
}
if (sc->bsr) {
bus_release_resource(self, SYS_RES_MEMORY,PCI_CBMEM,sc->bsr);
sc->bsr = NULL;
sc->bst = 0;
sc->bsh = 0;
}
fwohci_detach(sc, self);
splx(s);
return 0;
}
static int
fwohci_pci_suspend(device_t dev)
{
fwohci_softc_t *sc = device_get_softc(dev);
int err;
device_printf(dev, "fwohci_pci_suspend\n");
err = bus_generic_suspend(dev);
if (err)
return err;
fwohci_stop(sc, dev);
return 0;
}
static int
fwohci_pci_resume(device_t dev)
{
fwohci_softc_t *sc = device_get_softc(dev);
#ifndef BURN_BRIDGES
device_printf(dev, "fwohci_pci_resume: power_state = 0x%08x\n",
pci_get_powerstate(dev));
pci_set_powerstate(dev, PCI_POWERSTATE_D0);
#endif
fwohci_pci_init(dev);
fwohci_resume(sc, dev);
return 0;
}
static int
fwohci_pci_shutdown(device_t dev)
{
fwohci_softc_t *sc = device_get_softc(dev);
bus_generic_shutdown(dev);
fwohci_stop(sc, dev);
return 0;
}
static device_method_t fwohci_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, fwohci_pci_probe),
DEVMETHOD(device_attach, fwohci_pci_attach),
DEVMETHOD(device_detach, fwohci_pci_detach),
DEVMETHOD(device_suspend, fwohci_pci_suspend),
DEVMETHOD(device_resume, fwohci_pci_resume),
DEVMETHOD(device_shutdown, fwohci_pci_shutdown),
/* Bus interface */
DEVMETHOD(bus_print_child, bus_generic_print_child),
{ 0, 0 }
};
static driver_t fwohci_driver = {
"fwohci",
fwohci_methods,
sizeof(fwohci_softc_t),
};
static devclass_t fwohci_devclass;
DRIVER_MODULE(fwohci, pci, fwohci_driver, fwohci_devclass, 0, 0);
DRIVER_MODULE(fwohci, cardbus, fwohci_driver, fwohci_devclass, 0, 0);