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o Check the size of I/O window handed by parent bus.

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o Check if it is in PIO_MODE when memory window is not handed.
This commit is contained in:
Noriaki Mitsunaga 2001-02-25 14:01:05 +00:00
parent 67ba68254b
commit fe80cc3e0d
1 changed files with 13 additions and 8 deletions
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21
sys/dev/nsp/nsp_pccard.c
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@ -134,12 +134,16 @@ static int
nsp_alloc_resource(DEVPORT_PDEVICE dev)
{
struct nsp_softc *sc = device_get_softc(dev);
u_long maddr, msize;
u_long ioaddr, iosize, maddr, msize;
int error;
error = bus_get_resource(dev, SYS_RES_IOPORT, 0, &ioaddr, &iosize);
if (error || iosize < NSP_IOSIZE)
return(ENOMEM);
sc->port_rid = 0;
sc->port_res = bus_alloc_resource(dev, SYS_RES_IOPORT, &sc->port_rid,
0, ~0, NSP_IOSIZE,RF_ACTIVE);
0, ~0, 0, RF_ACTIVE);
if (sc->port_res == NULL) {
nsp_release_resource(dev);
return(ENOMEM);
@ -153,18 +157,19 @@ nsp_alloc_resource(DEVPORT_PDEVICE dev)
return(ENOMEM);
}
/* no need to allocate memory if PIO mode */
if ((DEVPORT_PDEVFLAGS(dev) & PIO_MODE) != 0) {
return(0);
}
error = bus_get_resource(dev, SYS_RES_MEMORY, 0, &maddr, &msize);
if (error) {
return(0); /* XXX */
}
/* no need to allocate memory if not configured */
/* No need to allocate memory if not configured and it's in PIO mode */
if (maddr == 0 || msize == 0) {
if ((DEVPORT_PDEVFLAGS(dev) & PIO_MODE) == 0) {
printf("Memory window was not configured. Configure or use in PIO mode.");
nsp_release_resource(dev);
return(ENOMEM);
}
/* no need to allocate memory if PIO mode */
return(0);
}