In message <[EMAIL PROTECTED]> Duncan Barclay writes:
: How can get a 16byte aligned ISA IO port from the resource allocator? I need
: this to get if_xe working for Realport cards.
:
: This aspect of the driver is nothing to do with Warner's changes to PCCard.
I'm going to have to commit the byte alignment stuff that was posted a
while ago committed.
Until then, you request 16 bytes from the system for the ioports.
Since this is pccard, you'll likely want to map it in the 0x100 -
0x3ff range:
start = 0x100;
end = 0x3ff;
rid = 1; /* 0 is managed by pccardd */
do {
res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, start,
end, 16, RF_ACTIVE);
if (res == 0)
break; /* we failed */
if ((rman_get_start(res) & 0xf) == 0)
break; /* good */
start = (rman_get_start(res) + 15) & ~0xf;
} while (1);
Warner
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