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uhci_reset() clears irq mask and irq status registers, but doesn't
update the irq line. Which may result in suspious IRQs after uhci
reset. Fix it.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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When we queue up usb packets we may happen to find a already queued
packet, which also might be finished at that point already. We don't
want continue processing the packet at this point though, so lets
just signal back we've found a in-flight packet when in queuing mode.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Not only QHs can form rings, but TDs too. With the new
queuing/pipelining support we are following TD chains and
can actually walk in circles. An assert() prevents us from
entering an endless loop then.
Fix is easy: Just stop queuing when we figure the TD we are
about to queue up is in flight already.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Step #2 (separate for better bisectability): renumber so the silly '-1'
goes away. Pick a range which doesn't overlap the old values.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Step #1 (separate for better bisectability): replace numbers with names.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Zap DPRINTF, add tracepoints instead.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Cancel any in-flight transaction when the guest stops the uhci schedule.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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It should also free all queues.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Also do async->td initialization in uhci_async_alloc now.
Prepares for adding tracepoints.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Remove the uhci and ohci init wrappers, which all wrapped a
pci_create_simple() one-liner. Switch callsites to call
pci_create_simple directly. Remove the header files where
the wrappers where declared.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Reorganize usb source files. Create a new hw/usb/ directory and move
all usb source code to that place. Also make filenames a bit more
descriptive. Host adapters are prefixed with "hch-" now, usb device
emulations are prefixed with "dev-". Fixup paths Makefile and include
paths to make it compile. No code changes.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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