312 lines
8.8 KiB
C
312 lines
8.8 KiB
C
/* $NetBSD: pci_subr.c,v 1.11 1995/06/21 03:56:09 cgd Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1995 Christopher G. Demetriou. All rights reserved.
|
|
* Copyright (c) 1994 Charles Hannum. 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 following acknowledgement:
|
|
* This product includes software developed by Charles Hannum.
|
|
* 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.
|
|
*/
|
|
|
|
/*
|
|
* PCI autoconfiguration support functions.
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/device.h>
|
|
|
|
#include <dev/pci/pcireg.h>
|
|
#include <dev/pci/pcivar.h>
|
|
#ifdef PCIVERBOSE
|
|
#include <dev/pci/pcidevs.h>
|
|
#endif
|
|
|
|
int
|
|
pciprint(aux, pci)
|
|
void *aux;
|
|
char *pci;
|
|
{
|
|
register struct pci_attach_args *pa = aux;
|
|
|
|
printf(" bus %d device %d", pa->pa_bus, pa->pa_device);
|
|
return (UNCONF);
|
|
}
|
|
|
|
int
|
|
pcisubmatch(parent, match, aux)
|
|
struct device *parent;
|
|
void *match, *aux;
|
|
{
|
|
struct cfdata *cf = match;
|
|
struct pci_attach_args *pa = aux;
|
|
|
|
if (cf->cf_loc[0] != -1 && cf->cf_loc[0] != pa->pa_bus)
|
|
return 0;
|
|
if (cf->cf_loc[1] != -1 && cf->cf_loc[1] != pa->pa_device)
|
|
return 0;
|
|
return ((*cf->cf_driver->cd_match)(parent, match, aux));
|
|
}
|
|
|
|
/*
|
|
* Try to find and attach the PCI device at the give bus and device number.
|
|
* Return 1 if successful, 0 if unsuccessful.
|
|
*/
|
|
int
|
|
pci_attach_subdev(pcidev, bus, device)
|
|
struct device *pcidev;
|
|
int bus, device;
|
|
{
|
|
pcitag_t tag;
|
|
pcireg_t id, class;
|
|
struct pci_attach_args pa;
|
|
struct cfdata *cf;
|
|
int supported;
|
|
char devinfo[256];
|
|
|
|
tag = pci_make_tag(bus, device, 0);
|
|
id = pci_conf_read(tag, PCI_ID_REG);
|
|
if (id == 0 || id == 0xffffffff)
|
|
return (0);
|
|
class = pci_conf_read(tag, PCI_CLASS_REG);
|
|
|
|
pa.pa_bus = bus;
|
|
pa.pa_device = device;
|
|
pa.pa_tag = tag;
|
|
pa.pa_id = id;
|
|
pa.pa_class = class;
|
|
|
|
#if defined(PCIVERBOSE) && 0 /* _too_ verbose */
|
|
pci_devinfo(id, class, devinfo, NULL);
|
|
printf("%s bus %d device %d: %s\n", pcidev->dv_xname, bus,
|
|
device, devinfo);
|
|
#endif /* _too_ verbose */
|
|
|
|
if ((cf = config_search(pcisubmatch, pcidev, &pa)) != NULL)
|
|
config_attach(pcidev, cf, &pa, pciprint);
|
|
else {
|
|
pci_devinfo(id, class, devinfo, &supported);
|
|
printf("%s bus %d device %d: %s not %s\n", pcidev->dv_xname,
|
|
bus, device, devinfo,
|
|
supported ? "configured" : "supported");
|
|
return (0);
|
|
}
|
|
|
|
return (1);
|
|
}
|
|
|
|
/*
|
|
* Descriptions of known PCI classes and subclasses.
|
|
*
|
|
* Subclasses are described in the same way as classes, but have a
|
|
* NULL subclass pointer.
|
|
*/
|
|
struct pci_class {
|
|
char *name;
|
|
int val; /* as wide as pci_{,sub}class_t */
|
|
struct pci_class *subclasses;
|
|
};
|
|
|
|
struct pci_class pci_subclass_prehistoric[] = {
|
|
{ "miscellaneous", PCI_SUBCLASS_PREHISTORIC_MISC, },
|
|
{ "VGA", PCI_SUBCLASS_PREHISTORIC_VGA, },
|
|
{ 0 }
|
|
};
|
|
|
|
struct pci_class pci_subclass_mass_storage[] = {
|
|
{ "SCSI", PCI_SUBCLASS_MASS_STORAGE_SCSI, },
|
|
{ "IDE", PCI_SUBCLASS_MASS_STORAGE_IDE, },
|
|
{ "floppy", PCI_SUBCLASS_MASS_STORAGE_FLOPPY, },
|
|
{ "IPI", PCI_SUBCLASS_MASS_STORAGE_IPI, },
|
|
{ "miscellaneous", PCI_SUBCLASS_MASS_STORAGE_MISC, },
|
|
{ 0 },
|
|
};
|
|
|
|
struct pci_class pci_subclass_network[] = {
|
|
{ "ethernet", PCI_SUBCLASS_NETWORK_ETHERNET, },
|
|
{ "token ring", PCI_SUBCLASS_NETWORK_TOKENRING, },
|
|
{ "FDDI", PCI_SUBCLASS_NETWORK_FDDI, },
|
|
{ "miscellaneous", PCI_SUBCLASS_NETWORK_MISC, },
|
|
{ 0 },
|
|
};
|
|
|
|
struct pci_class pci_subclass_display[] = {
|
|
{ "VGA", PCI_SUBCLASS_DISPLAY_VGA, },
|
|
{ "XGA", PCI_SUBCLASS_DISPLAY_XGA, },
|
|
{ "miscellaneous", PCI_SUBCLASS_DISPLAY_MISC, },
|
|
{ 0 },
|
|
};
|
|
|
|
struct pci_class pci_subclass_multimedia[] = {
|
|
{ "video", PCI_SUBCLASS_MULTIMEDIA_VIDEO, },
|
|
{ "audio", PCI_SUBCLASS_MULTIMEDIA_AUDIO, },
|
|
{ "miscellaneous", PCI_SUBCLASS_MULTIMEDIA_MISC, },
|
|
{ 0 },
|
|
};
|
|
|
|
struct pci_class pci_subclass_memory[] = {
|
|
{ "RAM", PCI_SUBCLASS_MEMORY_RAM, },
|
|
{ "flash", PCI_SUBCLASS_MEMORY_FLASH, },
|
|
{ "miscellaneous", PCI_SUBCLASS_MEMORY_MISC, },
|
|
{ 0 },
|
|
};
|
|
|
|
struct pci_class pci_subclass_bridge[] = {
|
|
{ "host", PCI_SUBCLASS_BRIDGE_HOST, },
|
|
{ "ISA", PCI_SUBCLASS_BRIDGE_ISA, },
|
|
{ "EISA", PCI_SUBCLASS_BRIDGE_EISA, },
|
|
{ "MicroChannel", PCI_SUBCLASS_BRIDGE_MC, },
|
|
{ "PCI", PCI_SUBCLASS_BRIDGE_PCI, },
|
|
{ "PCMCIA", PCI_SUBCLASS_BRIDGE_PCMCIA, },
|
|
{ "miscellaneous", PCI_SUBCLASS_BRIDGE_MISC, },
|
|
{ 0 },
|
|
};
|
|
|
|
struct pci_class pci_class[] = {
|
|
{ "prehistoric", PCI_CLASS_PREHISTORIC,
|
|
pci_subclass_prehistoric, },
|
|
{ "mass storage", PCI_CLASS_MASS_STORAGE,
|
|
pci_subclass_mass_storage, },
|
|
{ "network", PCI_CLASS_NETWORK,
|
|
pci_subclass_network, },
|
|
{ "display", PCI_CLASS_DISPLAY,
|
|
pci_subclass_display, },
|
|
{ "multimedia", PCI_CLASS_MULTIMEDIA,
|
|
pci_subclass_multimedia, },
|
|
{ "memory", PCI_CLASS_MEMORY,
|
|
pci_subclass_memory, },
|
|
{ "bridge", PCI_CLASS_BRIDGE,
|
|
pci_subclass_bridge, },
|
|
{ "undefined", PCI_CLASS_UNDEFINED,
|
|
0, },
|
|
{ 0 },
|
|
};
|
|
|
|
#ifdef PCIVERBOSE
|
|
/*
|
|
* Descriptions of of known vendors and devices ("products").
|
|
*/
|
|
struct pci_knowndev {
|
|
pci_vendor_id_t vendor;
|
|
pci_product_id_t product;
|
|
int flags;
|
|
char *vendorname, *productname;
|
|
};
|
|
#define PCI_KNOWNDEV_UNSUPP 0x01 /* unsupported device */
|
|
#define PCI_KNOWNDEV_NOPROD 0x02 /* match on vendor only */
|
|
|
|
#include <dev/pci/pcidevs_data.h>
|
|
#endif /* PCIVERBOSE */
|
|
|
|
void
|
|
pci_devinfo(id_reg, class_reg, cp, supp)
|
|
pcireg_t id_reg, class_reg;
|
|
char *cp;
|
|
int *supp;
|
|
{
|
|
pci_vendor_id_t vendor;
|
|
pci_product_id_t product;
|
|
pci_class_t class;
|
|
pci_subclass_t subclass;
|
|
pci_interface_t interface;
|
|
pci_revision_t revision;
|
|
char *vendor_namep, *product_namep;
|
|
struct pci_class *classp, *subclassp;
|
|
#ifdef PCIVERBOSE
|
|
struct pci_knowndev *kdp;
|
|
#endif
|
|
|
|
vendor = PCI_VENDOR(id_reg);
|
|
product = PCI_PRODUCT(id_reg);
|
|
|
|
class = PCI_CLASS(class_reg);
|
|
subclass = PCI_SUBCLASS(class_reg);
|
|
interface = PCI_INTERFACE(class_reg);
|
|
revision = PCI_REVISION(class_reg);
|
|
|
|
#ifdef PCIVERBOSE
|
|
kdp = pci_knowndevs;
|
|
while (kdp->vendorname != NULL) { /* all have vendor name */
|
|
if (kdp->vendor == vendor && (kdp->product == product ||
|
|
(kdp->flags & PCI_KNOWNDEV_NOPROD) != 0))
|
|
break;
|
|
kdp++;
|
|
}
|
|
if (kdp->vendorname == NULL) {
|
|
vendor_namep = product_namep = NULL;
|
|
if (supp != NULL)
|
|
*supp = 0;
|
|
} else {
|
|
vendor_namep = kdp->vendorname;
|
|
product_namep = (kdp->flags & PCI_KNOWNDEV_NOPROD) == 0 ?
|
|
kdp->productname : NULL;
|
|
if (supp != NULL)
|
|
*supp = (kdp->flags & PCI_KNOWNDEV_UNSUPP) == 0;
|
|
}
|
|
#else /* PCIVERBOSE */
|
|
vendor_namep = product_namep = NULL;
|
|
if (supp != NULL)
|
|
*supp = 1; /* always say 'not configured' */
|
|
#endif /* PCIVERBOSE */
|
|
|
|
classp = pci_class;
|
|
while (classp->name != NULL) {
|
|
if (class == classp->val)
|
|
break;
|
|
classp++;
|
|
}
|
|
|
|
subclassp = (classp->name != NULL) ? classp->subclasses : NULL;
|
|
while (subclassp && subclassp->name != NULL) {
|
|
if (subclass == subclassp->val)
|
|
break;
|
|
subclassp++;
|
|
}
|
|
|
|
if (vendor_namep == NULL)
|
|
cp += sprintf(cp, "unknown vendor/product: 0x%04x/0x%04x",
|
|
vendor, product);
|
|
else if (product_namep != NULL)
|
|
cp += sprintf(cp, "%s %s", vendor_namep, product_namep);
|
|
else
|
|
cp += sprintf(cp, "vendor: %s, unknown product: 0x%x",
|
|
vendor_namep, product);
|
|
cp += sprintf(cp, " (");
|
|
if (classp->name == NULL)
|
|
cp += sprintf(cp, "unknown class/subclass: 0x%02x/0x%02x",
|
|
class, subclass);
|
|
else {
|
|
cp += sprintf(cp, "class: %s, ", classp->name);
|
|
if (subclassp->name == NULL)
|
|
cp += sprintf(cp, "unknown subclass: 0x%02x", subclass);
|
|
else
|
|
cp += sprintf(cp, "subclass: %s", subclassp->name);
|
|
}
|
|
#if 0 /* not very useful */
|
|
cp += sprintf(cp, ", interface: 0x%02x", interface);
|
|
#endif
|
|
cp += sprintf(cp, ", revision: 0x%02x)", revision);
|
|
}
|