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-rw-r--r--hw/usb.c11
-rw-r--r--hw/usb.h2
2 files changed, 12 insertions, 1 deletions
diff --git a/hw/usb.c b/hw/usb.c
index fc41d62..800d912 100644
--- a/hw/usb.c
+++ b/hw/usb.c
@@ -323,7 +323,7 @@ int usb_handle_packet(USBDevice *dev, USBPacket *p)
assert(p->state == USB_PACKET_SETUP);
assert(p->ep != NULL);
- if (QTAILQ_EMPTY(&p->ep->queue)) {
+ if (QTAILQ_EMPTY(&p->ep->queue) || p->ep->pipeline) {
ret = usb_process_one(p);
if (ret == USB_RET_ASYNC) {
usb_packet_set_state(p, USB_PACKET_ASYNC);
@@ -468,6 +468,7 @@ void usb_ep_init(USBDevice *dev)
dev->ep_ctl.type = USB_ENDPOINT_XFER_CONTROL;
dev->ep_ctl.ifnum = 0;
dev->ep_ctl.dev = dev;
+ dev->ep_ctl.pipeline = false;
QTAILQ_INIT(&dev->ep_ctl.queue);
for (ep = 0; ep < USB_MAX_ENDPOINTS; ep++) {
dev->ep_in[ep].nr = ep + 1;
@@ -480,6 +481,8 @@ void usb_ep_init(USBDevice *dev)
dev->ep_out[ep].ifnum = 0;
dev->ep_in[ep].dev = dev;
dev->ep_out[ep].dev = dev;
+ dev->ep_in[ep].pipeline = false;
+ dev->ep_out[ep].pipeline = false;
QTAILQ_INIT(&dev->ep_in[ep].queue);
QTAILQ_INIT(&dev->ep_out[ep].queue);
}
@@ -593,3 +596,9 @@ int usb_ep_get_max_packet_size(USBDevice *dev, int pid, int ep)
struct USBEndpoint *uep = usb_ep_get(dev, pid, ep);
return uep->max_packet_size;
}
+
+void usb_ep_set_pipeline(USBDevice *dev, int pid, int ep, bool enabled)
+{
+ struct USBEndpoint *uep = usb_ep_get(dev, pid, ep);
+ uep->pipeline = enabled;
+}
diff --git a/hw/usb.h b/hw/usb.h
index 1a30ebb..f6df0ad 100644
--- a/hw/usb.h
+++ b/hw/usb.h
@@ -177,6 +177,7 @@ struct USBEndpoint {
uint8_t type;
uint8_t ifnum;
int max_packet_size;
+ bool pipeline;
USBDevice *dev;
QTAILQ_HEAD(, USBPacket) queue;
};
@@ -364,6 +365,7 @@ void usb_ep_set_ifnum(USBDevice *dev, int pid, int ep, uint8_t ifnum);
void usb_ep_set_max_packet_size(USBDevice *dev, int pid, int ep,
uint16_t raw);
int usb_ep_get_max_packet_size(USBDevice *dev, int pid, int ep);
+void usb_ep_set_pipeline(USBDevice *dev, int pid, int ep, bool enabled);
void usb_attach(USBPort *port);
void usb_detach(USBPort *port);