diff options
Diffstat (limited to 'sys/i386/isa/pcibus.c')
| -rw-r--r-- | sys/i386/isa/pcibus.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/sys/i386/isa/pcibus.c b/sys/i386/isa/pcibus.c index ea62688..990b418 100644 --- a/sys/i386/isa/pcibus.c +++ b/sys/i386/isa/pcibus.c @@ -31,10 +31,12 @@ #include <sys/systm.h> #include <sys/bus.h> #include <sys/kernel.h> +#include <sys/module.h> #include <pci/pcivar.h> #include <pci/pcireg.h> #include <i386/isa/pcibus.h> +#include <isa/isavar.h> #include <machine/segments.h> #include <machine/pc/bios.h> @@ -655,3 +657,55 @@ static driver_t nexus_pcib_driver = { }; DRIVER_MODULE(pcib, nexus, nexus_pcib_driver, pcib_devclass, 0, 0); + +/* + * Install placeholder to claim the resources owned by the + * PCI bus interface. This could be used to extract the + * config space registers in the extreme case where the PnP + * ID is available and the PCI BIOS isn't, but for now we just + * eat the PnP ID and do nothing else. + * + * XXX we should silence this probe, as it will generally confuse + * people. + */ +static struct isa_pnp_id pcibus_pnp_ids[] = { + { 0x030ad041 /* PNP030A */, "PCI Bus" }, + { 0 } +}; + +static int +pcibus_pnp_probe(device_t dev) +{ + int result; + + if ((result = ISA_PNP_PROBE(device_get_parent(dev), dev, pcibus_pnp_ids)) <= 0) + device_quiet(dev); + return(result); +} + +static int +pcibus_pnp_attach(device_t dev) +{ + return(0); +} + +static device_method_t pcibus_pnp_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, pcibus_pnp_probe), + DEVMETHOD(device_attach, pcibus_pnp_attach), + DEVMETHOD(device_detach, bus_generic_detach), + DEVMETHOD(device_shutdown, bus_generic_shutdown), + DEVMETHOD(device_suspend, bus_generic_suspend), + DEVMETHOD(device_resume, bus_generic_resume), + { 0, 0 } +}; + +static driver_t pcibus_pnp_driver = { + "pcibus_pnp", + pcibus_pnp_methods, + 1, /* no softc */ +}; + +static devclass_t pcibus_pnp_devclass; + +DRIVER_MODULE(pcibus_pnp, isa, pcibus_pnp_driver, pcibus_pnp_devclass, 0, 0); |
