| Commit message (Collapse) | Author | Age | Files | Lines |
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the sabtty device to create its description so that they will be
unique for machines with multiple sab chips.
This fixes a panic on machines with an rsc card.
Tested by: obrien (e250)
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in the prom but no keyboard is plugged in.
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it manually.
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- Fix some bogosity with mixing unit numbers and channels, which would only
work for one instance of the device.
- Use a simpler scheme for input and output queueing.
- Use db_alt_break.
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Submitted by: marius@alchemy.franken.de
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reset the chip on open if we're not the console.
This fixes running a getty on ttya or ttyb if console input and output
devices are screen.
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delay in the right place to flush output before switching consoles.
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trigger a breakpoint with this chip.
- Fiddle the right bits in the cn input and output routines to disable port
interrupts and enable visibility of the masked interrupt status bits.
- Register a shutdown final event handler to put the chip back in the mode
that the prom expects.
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- Get the initial mode from the prom settings and don't clobber the mode
on open.
- Copy output into an internal ring buffer instead of accessing the tty
outq directly in the interrupt handler. This fixes a problem where
garbage would show up in the output stream.
- Reset the console port completely and reprogram all the parameters
before enabling it. This fixes seemingly random hangs on startup
when using a fast interrupt handler.
- Add minimal locking in place of spls.
- Remove dead code and minor cleanups.
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sun ultras.
Obtained from: OpenBSD
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