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hw/usb-msd: fix some usb requests 

The usb-msd device emulation needs some small tweaks in the requests
emulations. For instance, the reset/maxlun requests are class/interface
specific so requests for them with the type class and recipient interface
bits sets have to be handled.

Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Arnaud Patard (Rtp) 2010-03-10 10:45:12 +01:00 committed by Anthony Liguori
parent 314b1811c1
commit e5322f76a7
1 changed files with 5 additions and 3 deletions
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8
hw/usb-msd.c
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@ -321,17 +321,19 @@ static int usb_msd_handle_control(USBDevice *dev, int request, int value,
ret = 0;
break;
case EndpointOutRequest | USB_REQ_CLEAR_FEATURE:
if (value == 0 && index != 0x81) { /* clear ep halt */
goto fail;
}
ret = 0;
break;
case InterfaceOutRequest | USB_REQ_SET_INTERFACE:
ret = 0;
break;
/* Class specific requests. */
case (((USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE) << 8) | MassStorageReset):
case MassStorageReset:
/* Reset state ready for the next CBW. */
s->mode = USB_MSDM_CBW;
ret = 0;
break;
case (((USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE) << 8) | GetMaxLun):
case GetMaxLun:
data[0] = 0;
ret = 1;