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usb: improve packet state sanity checks

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Add a new function to check whenever the packet state is as expected,
log more informations in case it isn't.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Gerd Hoffmann 2012-03-08 12:27:47 +01:00
parent 86e18cae20
commit 5ac2731cf8
3 changed files with 33 additions and 6 deletions
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1
hw/usb.h
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@ -336,6 +336,7 @@ struct USBPacket {
void usb_packet_init(USBPacket *p);
void usb_packet_set_state(USBPacket *p, USBPacketState state);
void usb_packet_check_state(USBPacket *p, USBPacketState expected);
void usb_packet_setup(USBPacket *p, int pid, USBEndpoint *ep);
void usb_packet_addbuf(USBPacket *p, void *ptr, size_t len);
int usb_packet_map(USBPacket *p, QEMUSGList *sgl);