76a99a952a
once and for all. The i8259 does not like to be read in a loop, when an interrupt comes in, it will return a valid value, however, if you keep reading it until there are no outstanding interrupts, it will return 7 (which is the lpt interrupt). Change the pic handler to give an argument to the get_irq functions of mode, which indicates if this is the first time we are asking, or if we are just rechecking in a loop. Non-i8259 handlers can safely ignore this argument. Tested to fix the stream of 7's problem on prep and ofppc. Got rid of the nasty hack in ofppc with this too, and the prep machine seems to take less interrupts now, which is a good thing. |
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| compile | ||
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| include | ||
| isa | ||
| ofppc | ||
| pci | ||
| stand | ||
| Makefile | ||