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i/o map function dispatch, console picker function

This commit is contained in:
cgd 1995-08-03 00:33:58 +00:00
parent 721de847a4
commit beeaf64fd6
1 changed files with 54 additions and 6 deletions
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60
sys/arch/alpha/pci/pci_machdep.c
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@ -1,4 +1,4 @@
/* $NetBSD: pci_machdep.c,v 1.1 1995/06/28 01:25:56 cgd Exp $ */
/* $NetBSD: pci_machdep.c,v 1.2 1995/08/03 00:33:58 cgd Exp $ */
/*
* Copyright (c) 1994 Charles Hannum. All rights reserved.
@ -45,8 +45,12 @@
#include <dev/isa/isavar.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcidevs.h>
#include <alpha/pci/pci_chipset.h>
#include "pcivga.h"
#include "tga.h"
int pcimatch __P((struct device *, void *, void *));
void pciattach __P((struct device *, struct device *, void *));
@ -108,11 +112,7 @@ pci_map_io(tag, reg, iobasep)
int *iobasep;
{
/*
* XXX should be a chipset-dependent function, but...
* what would it do, and what would use it?
*/
panic("pci_map_io: not implemented");
return (*pci_cs_fcns->cs_map_io)(tag, reg, iobasep);
}
int
@ -198,3 +198,51 @@ pcilevel_to_isa(level)
panic("pcilevel_to_isa: unknown level %d\n", level);
}
}
void
pci_display_console(bus, device, function)
int bus, device, function;
{
pcitag_t tag;
pcireg_t id, class;
/* XXX */
tag = pci_make_tag(bus, device, function);
id = pci_conf_read(tag, PCI_ID_REG);
if (id == 0 || id == 0xffffffff)
panic("pci_display_console: no device at %d/%d/%d",
bus, device, function);
class = pci_conf_read(tag, PCI_CLASS_REG);
if (PCI_CLASS(class) != PCI_CLASS_DISPLAY &&
!(PCI_CLASS(class) == PCI_CLASS_PREHISTORIC &&
PCI_SUBCLASS(class) == PCI_SUBCLASS_PREHISTORIC_VGA))
panic("pci_display_console: device at %d/%d/%d not a display",
bus, device, function);
if ((PCI_CLASS(class) == PCI_CLASS_DISPLAY &&
PCI_SUBCLASS(class) == PCI_SUBCLASS_DISPLAY_VGA) ||
(PCI_CLASS(class) == PCI_CLASS_PREHISTORIC &&
PCI_SUBCLASS(class) == PCI_SUBCLASS_PREHISTORIC_VGA)) {
#if NPCIVGA
pcivga_console(bus, device, function);
#else
panic("pci_display_console: pcivga is console, not configured");
#endif
return;
}
if (PCI_VENDOR(id) == PCI_VENDOR_DEC &&
PCI_PRODUCT(id) == PCI_PRODUCT_DEC_21030) {
#if NTGA
tga_console(bus, device, function);
#else
panic("pci_display_console: tga is console, not configured");
#endif
return;
}
panic("pci_display_console: unsupported device at %d/%d/%d",
bus, device, function);
}