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freebsd/sys/dev/firewire/fwohci_pci.c
Alexander Kabaev 23667f089d Remove obsolete compatibility glue and improve firewire code readability.
Commit my version of style(9) pass over the firewire code. Now that
other people have started changing the code carrying this is as a
local patch is not longer a viable option.

MFC after:	1 month
2014-09-27 16:50:21 +00:00

485 lines
13 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#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>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <machine/resource.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#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)
{
uint32_t id;
id = pci_get_devid(dev);
if (id == (FW_VENDORID_NATSEMI | FW_DEVICE_CS4210)) {
device_set_desc(dev, "National Semiconductor CS4210");
return BUS_PROBE_DEFAULT;
}
if (id == (FW_VENDORID_NEC | FW_DEVICE_UPD861)) {
device_set_desc(dev, "NEC uPD72861");
return BUS_PROBE_DEFAULT;
}
if (id == (FW_VENDORID_NEC | FW_DEVICE_UPD871)) {
device_set_desc(dev, "NEC uPD72871/2");
return BUS_PROBE_DEFAULT;
}
if (id == (FW_VENDORID_NEC | FW_DEVICE_UPD72870)) {
device_set_desc(dev, "NEC uPD72870");
return BUS_PROBE_DEFAULT;
}
if (id == (FW_VENDORID_NEC | FW_DEVICE_UPD72873)) {
device_set_desc(dev, "NEC uPD72873");
return BUS_PROBE_DEFAULT;
}
if (id == (FW_VENDORID_NEC | FW_DEVICE_UPD72874)) {
device_set_desc(dev, "NEC uPD72874");
return BUS_PROBE_DEFAULT;
}
if (id == (FW_VENDORID_SIS | FW_DEVICE_7007)) {
/* It has no real identifier, using device id. */
device_set_desc(dev, "SiS 7007");
return BUS_PROBE_DEFAULT;
}
if (id == (FW_VENDORID_TI | FW_DEVICE_TITSB22)) {
device_set_desc(dev, "Texas Instruments TSB12LV22");
return BUS_PROBE_DEFAULT;
}
if (id == (FW_VENDORID_TI | FW_DEVICE_TITSB23)) {
device_set_desc(dev, "Texas Instruments TSB12LV23");
return BUS_PROBE_DEFAULT;
}
if (id == (FW_VENDORID_TI | FW_DEVICE_TITSB26)) {
device_set_desc(dev, "Texas Instruments TSB12LV26");
return BUS_PROBE_DEFAULT;
}
if (id == (FW_VENDORID_TI | FW_DEVICE_TITSB43)) {
device_set_desc(dev, "Texas Instruments TSB43AA22");
return BUS_PROBE_DEFAULT;
}
if (id == (FW_VENDORID_TI | FW_DEVICE_TITSB43A)) {
device_set_desc(dev, "Texas Instruments TSB43AB22/A");
return BUS_PROBE_DEFAULT;
}
if (id == (FW_VENDORID_TI | FW_DEVICE_TITSB43AB21)) {
device_set_desc(dev, "Texas Instruments TSB43AB21/A/AI/A-EP");
return BUS_PROBE_DEFAULT;
}
if (id == (FW_VENDORID_TI | FW_DEVICE_TITSB43AB23)) {
device_set_desc(dev, "Texas Instruments TSB43AB23");
return BUS_PROBE_DEFAULT;
}
if (id == (FW_VENDORID_TI | FW_DEVICE_TITSB82AA2)) {
device_set_desc(dev, "Texas Instruments TSB82AA2");
return BUS_PROBE_DEFAULT;
}
if (id == (FW_VENDORID_TI | FW_DEVICE_TIPCI4450)) {
device_set_desc(dev, "Texas Instruments PCI4450");
return BUS_PROBE_DEFAULT;
}
if (id == (FW_VENDORID_TI | FW_DEVICE_TIPCI4410A)) {
device_set_desc(dev, "Texas Instruments PCI4410A");
return BUS_PROBE_DEFAULT;
}
if (id == (FW_VENDORID_TI | FW_DEVICE_TIPCI4451)) {
device_set_desc(dev, "Texas Instruments PCI4451");
return BUS_PROBE_DEFAULT;
}
if (id == (FW_VENDORID_SONY | FW_DEVICE_CXD1947)) {
device_printf(dev, "Sony i.LINK (CXD1947) not supported\n");
return ENXIO;
}
if (id == (FW_VENDORID_SONY | FW_DEVICE_CXD3222)) {
device_set_desc(dev, "Sony i.LINK (CXD3222)");
return BUS_PROBE_DEFAULT;
}
if (id == (FW_VENDORID_VIA | FW_DEVICE_VT6306)) {
device_set_desc(dev, "VIA Fire II (VT6306)");
return BUS_PROBE_DEFAULT;
}
if (id == (FW_VENDORID_RICOH | FW_DEVICE_R5C551)) {
device_set_desc(dev, "Ricoh R5C551");
return BUS_PROBE_DEFAULT;
}
if (id == (FW_VENDORID_RICOH | FW_DEVICE_R5C552)) {
device_set_desc(dev, "Ricoh R5C552");
return BUS_PROBE_DEFAULT;
}
if (id == (FW_VENDORID_APPLE | FW_DEVICE_PANGEA)) {
device_set_desc(dev, "Apple Pangea");
return BUS_PROBE_DEFAULT;
}
if (id == (FW_VENDORID_APPLE | FW_DEVICE_UNINORTH)) {
device_set_desc(dev, "Apple UniNorth");
return BUS_PROBE_DEFAULT;
}
if (id == (FW_VENDORID_LUCENT | FW_DEVICE_FW322)) {
device_set_desc(dev, "Lucent FW322/323");
return BUS_PROBE_DEFAULT;
}
if (id == (FW_VENDORID_INTEL | FW_DEVICE_82372FB)) {
device_set_desc(dev, "Intel 82372FB");
return BUS_PROBE_DEFAULT;
}
if (id == (FW_VENDORID_ADAPTEC | FW_DEVICE_AIC5800)) {
device_set_desc(dev, "Adaptec AHA-894x/AIC-5800");
return BUS_PROBE_DEFAULT;
}
if (id == (FW_VENDORID_SUN | FW_DEVICE_PCIO2FW)) {
device_set_desc(dev, "Sun PCIO-2");
return BUS_PROBE_DEFAULT;
}
if (pci_get_class(dev) == PCIC_SERIALBUS
&& pci_get_subclass(dev) == PCIS_SERIALBUS_FW
&& pci_get_progif(dev) == PCI_INTERFACE_OHCI) {
if (bootverbose)
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 BUS_PROBE_DEFAULT;
}
return ENXIO;
}
static int
fwohci_pci_init(device_t self)
{
int olatency, latency, ocache_line, cache_line;
uint16_t cmd;
cmd = pci_read_config(self, PCIR_COMMAND, 2);
cmd |= PCIM_CMD_BUSMASTEREN | PCIM_CMD_MWRICEN;
#if 1 /* for broken hardware */
cmd &= ~PCIM_CMD_MWRICEN;
#endif
pci_write_config(self, PCIR_COMMAND, cmd, 2);
/*
* Some Sun PCIO-2 FireWire controllers have their intpin register
* bogusly set to 0, although it should be 3. Correct that.
*/
if (pci_get_devid(self) == (FW_VENDORID_SUN | FW_DEVICE_PCIO2FW) &&
pci_get_intpin(self) == 0)
pci_set_intpin(self, 3);
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;
#if 0
if (bootverbose)
firewire_debug = bootverbose;
#endif
mtx_init(FW_GMTX(&sc->fc), "firewire", NULL, MTX_DEF);
fwohci_pci_init(self);
rid = PCI_CBMEM;
sc->bsr = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid, 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_any(self, SYS_RES_IRQ, &rid,
RF_SHAREABLE | RF_ACTIVE);
if (sc->irq_res == NULL) {
device_printf(self, "Could not allocate irq\n");
fwohci_pci_detach(self);
return ENXIO;
}
err = bus_setup_intr(self, sc->irq_res,
INTR_TYPE_NET | INTR_MPSAFE,
NULL, (driver_intr_t *) fwohci_intr,
sc, &sc->ih);
if (err) {
device_printf(self, "Could not setup irq, %d\n", err);
fwohci_pci_detach(self);
return ENXIO;
}
err = bus_dma_tag_create(
/*parent*/bus_get_dma_tag(self),
/*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,
/*lockfunc*/busdma_lock_mutex,
/*lockarg*/FW_GMTX(&sc->fc),
&sc->fc.dmat);
if (err != 0) {
device_printf(self, "fwohci_pci_attach: Could not allocate DMA "
"tag - error %d\n", err);
fwohci_pci_detach(self);
return (ENOMEM);
}
err = fwohci_init(sc, self);
if (err != 0) {
device_printf(self, "fwohci_init failed with err=%d\n", err);
fwohci_pci_detach(self);
return EIO;
}
/* probe and attach a child device(firewire) */
bus_generic_probe(self);
bus_generic_attach(self);
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;
if (sc->ih) {
err = bus_teardown_intr(self, sc->irq_res, sc->ih);
if (err)
device_printf(self,
"Could not tear down irq, %d\n", err);
sc->ih = NULL;
}
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);
mtx_destroy(FW_GMTX(&sc->fc));
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);
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_t
fwohci_pci_add_child(device_t dev, u_int order, const char *name, int unit)
{
struct fwohci_softc *sc;
device_t child;
int err = 0;
sc = (struct fwohci_softc *)device_get_softc(dev);
child = device_add_child(dev, name, unit);
if (child == NULL)
return (child);
sc->fc.bdev = child;
device_set_ivars(child, &sc->fc);
err = device_probe_and_attach(child);
if (err) {
device_printf(dev, "probe_and_attach failed with err=%d\n",
err);
fwohci_pci_detach(dev);
device_delete_child(dev, child);
return NULL;
}
/* XXX
* Clear the bus reset event flag to start transactions even when
* interrupt is disabled during the boot process.
*/
if (cold) {
int s;
DELAY(250); /* 2 cycles */
s = splfw();
fwohci_poll(&sc->fc, 0, -1);
splx(s);
}
return (child);
}
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_add_child, fwohci_pci_add_child),
DEVMETHOD_END
};
static driver_t fwohci_driver = {
"fwohci",
fwohci_methods,
sizeof(fwohci_softc_t),
};
static devclass_t fwohci_devclass;
#ifdef FWOHCI_MODULE
MODULE_DEPEND(fwohci, firewire, 1, 1, 1);
#endif
DRIVER_MODULE(fwohci, pci, fwohci_driver, fwohci_devclass, 0, 0);