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usb-host-libusb: Add alloc / free streams ops

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Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Hans de Goede 2013-11-21 17:21:01 +01:00 committed by Gerd Hoffmann
parent b664b80f19
commit 56a9f18051
1 changed files with 50 additions and 0 deletions
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50
hw/usb/host-libusb.c
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@ -1280,6 +1280,54 @@ static void usb_host_handle_reset(USBDevice *udev)
}
}
static int usb_host_alloc_streams(USBDevice *udev, USBEndpoint **eps,
int nr_eps, int streams)
{
#if LIBUSBX_API_VERSION >= 0x01000103
USBHostDevice *s = USB_HOST_DEVICE(udev);
unsigned char endpoints[30];
int i, rc;
for (i = 0; i < nr_eps; i++) {
endpoints[i] = eps[i]->nr;
if (eps[i]->pid == USB_TOKEN_IN) {
endpoints[i] |= 0x80;
}
}
rc = libusb_alloc_streams(s->dh, streams, endpoints, nr_eps);
if (rc < 0) {
usb_host_libusb_error("libusb_alloc_streams", rc);
} else if (rc != streams) {
fprintf(stderr,
"libusb_alloc_streams: got less streams then requested %d < %d\n",
rc, streams);
}
return (rc == streams) ? 0 : -1;
#else
fprintf(stderr, "libusb_alloc_streams: error not implemented\n");
return -1;
#endif
}
static void usb_host_free_streams(USBDevice *udev, USBEndpoint **eps,
int nr_eps)
{
#if LIBUSBX_API_VERSION >= 0x01000103
USBHostDevice *s = USB_HOST_DEVICE(udev);
unsigned char endpoints[30];
int i;
for (i = 0; i < nr_eps; i++) {
endpoints[i] = eps[i]->nr;
if (eps[i]->pid == USB_TOKEN_IN) {
endpoints[i] |= 0x80;
}
}
libusb_free_streams(s->dh, endpoints, nr_eps);
#endif
}
/*
* This is *NOT* about restoring state. We have absolutely no idea
* what state the host device is in at the moment and whenever it is
@ -1361,6 +1409,8 @@ static void usb_host_class_initfn(ObjectClass *klass, void *data)
uc->handle_reset = usb_host_handle_reset;
uc->handle_destroy = usb_host_handle_destroy;
uc->flush_ep_queue = usb_host_flush_ep_queue;
uc->alloc_streams = usb_host_alloc_streams;
uc->free_streams = usb_host_free_streams;
dc->vmsd = &vmstate_usb_host;
dc->props = usb_host_dev_properties;
set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);