struct usb_gadget_driver *driver;
struct dummy_request fifo_req;
u8 fifo_buf [FIFO_SIZE];
+ u16 devstatus;
struct hcd_dev *hdev;
u32 port_status;
int started;
struct completion released;
+ unsigned resuming:1;
+ unsigned long re_timeout;
};
static struct dummy *the_controller;
return tv.tv_usec / 1000;
}
+static int dummy_wakeup (struct usb_gadget *_gadget)
+{
+ struct dummy *dum;
+
+ dum = container_of (_gadget, struct dummy, gadget);
+ if ((dum->devstatus & (1 << USB_DEVICE_REMOTE_WAKEUP)) == 0
+ || !(dum->port_status & (1 << USB_PORT_FEAT_SUSPEND)))
+ return -EINVAL;
+
+ /* hub notices our request, issues downstream resume, etc */
+ dum->resuming = 1;
+ dum->port_status |= (1 << USB_PORT_FEAT_C_SUSPEND);
+ return 0;
+}
+
+static int dummy_set_selfpowered (struct usb_gadget *_gadget, int value)
+{
+ struct dummy *dum;
+
+ dum = container_of (_gadget, struct dummy, gadget);
+ if (value)
+ dum->devstatus |= (1 << USB_DEVICE_SELF_POWERED);
+ else
+ dum->devstatus &= ~(1 << USB_DEVICE_SELF_POWERED);
+ return 0;
+}
+
static const struct usb_gadget_ops dummy_ops = {
.get_frame = dummy_g_get_frame,
+ .wakeup = dummy_wakeup,
+ .set_selfpowered = dummy_set_selfpowered,
};
/*-------------------------------------------------------------------------*/
dum->gadget.ops = &dummy_ops;
dum->gadget.is_dualspeed = 1;
+ dum->devstatus = 0;
+ dum->resuming = 0;
+
INIT_LIST_HEAD (&dum->gadget.ep_list);
for (i = 0; i < DUMMY_ENDPOINTS; i++) {
struct dummy_ep *ep = &dum->ep [i];
break;
case USB_REQ_SET_FEATURE:
if (setup.bRequestType == Dev_Request) {
- // remote wakeup, and (hs) test mode
- value = -EOPNOTSUPP;
+ value = 0;
+ switch (setup.wValue) {
+ case USB_DEVICE_REMOTE_WAKEUP:
+ break;
+ default:
+ value = -EOPNOTSUPP;
+ }
+ if (value == 0) {
+ dum->devstatus |=
+ (1 << setup.wValue);
+ maybe_set_status (urb, 0);
+ }
+
} else if (setup.bRequestType == Ep_Request) {
// endpoint halt
ep2 = find_endpoint (dum,
break;
case USB_REQ_CLEAR_FEATURE:
if (setup.bRequestType == Dev_Request) {
- // remote wakeup
- value = 0;
- maybe_set_status (urb, 0);
+ switch (setup.wValue) {
+ case USB_DEVICE_REMOTE_WAKEUP:
+ dum->devstatus &= ~(1 <<
+ USB_DEVICE_REMOTE_WAKEUP);
+ value = 0;
+ maybe_set_status (urb, 0);
+ break;
+ default:
+ value = -EOPNOTSUPP;
+ break;
+ }
} else if (setup.bRequestType == Ep_Request) {
// endpoint halt
ep2 = find_endpoint (dum,
break;
}
buf [0] = ep2->halted;
+ } else if (setup.bRequestType ==
+ Dev_InRequest) {
+ buf [0] = (u8)
+ dum->devstatus;
} else
buf [0] = 0;
}
case ClearHubFeature:
break;
case ClearPortFeature:
- // FIXME won't some of these need special handling?
- dum->port_status &= ~(1 << wValue);
+ switch (wValue) {
+ case USB_PORT_FEAT_SUSPEND:
+ /* 20msec resume signaling */
+ dum->resuming = 1;
+ dum->re_timeout = jiffies + ((HZ * 20)/1000);
+ break;
+ case USB_PORT_FEAT_POWER:
+ dum->port_status = 0;
+ dum->address = 0;
+ dum->hdev = 0;
+ dum->resuming = 0;
+ break;
+ default:
+ dum->port_status &= ~(1 << wValue);
+ }
break;
case GetHubDescriptor:
hub_descriptor ((struct usb_hub_descriptor *) buf);
case GetPortStatus:
if (wIndex != 1)
retval = -EPIPE;
- ((u16 *) buf)[0] = cpu_to_le16 (dum->port_status);
- ((u16 *) buf)[1] = cpu_to_le16 (dum->port_status >> 16);
- break;
- case SetHubFeature:
- retval = -EPIPE;
- break;
- case SetPortFeature:
- if (wValue == USB_PORT_FEAT_RESET) {
- /* if it's already running, disconnect first */
- if (dum->port_status & USB_PORT_STAT_ENABLE) {
- dum->port_status &= ~(USB_PORT_STAT_ENABLE
- | USB_PORT_STAT_LOW_SPEED
- | USB_PORT_STAT_HIGH_SPEED);
- if (dum->driver) {
- dev_dbg (hardware, "disconnect\n");
- stop_activity (dum, dum->driver);
- }
- /* FIXME test that code path! */
- } else
- dum->port_status |=
- (1 << USB_PORT_FEAT_C_ENABLE);
-
- dum->port_status |= USB_PORT_STAT_ENABLE |
- (1 << USB_PORT_FEAT_C_RESET);
+ /* whoever resets or resumes must GetPortStatus to
+ * complete it!!
+ */
+ if (dum->resuming && time_after (jiffies, dum->re_timeout)) {
+ dum->port_status |= (1 << USB_PORT_FEAT_C_SUSPEND);
+ dum->port_status &= ~(1 << USB_PORT_FEAT_SUSPEND);
+ dum->resuming = 0;
+ dum->re_timeout = 0;
+ if (dum->driver->resume) {
+ spin_unlock (&dum->lock);
+ dum->driver->resume (&dum->gadget);
+ spin_lock (&dum->lock);
+ }
+ }
+ if ((dum->port_status & (1 << USB_PORT_FEAT_RESET)) != 0
+ && time_after (jiffies, dum->re_timeout)) {
+ dum->port_status |= (1 << USB_PORT_FEAT_C_RESET);
+ dum->port_status &= ~(1 << USB_PORT_FEAT_RESET);
+ dum->re_timeout = 0;
if (dum->driver) {
-
+ dum->port_status |= USB_PORT_STAT_ENABLE;
/* give it the best speed we agree on */
dum->gadget.speed = dum->driver->speed;
dum->gadget.ep0->maxpacket = 64;
break;
}
}
- } else
+ }
+ ((u16 *) buf)[0] = cpu_to_le16 (dum->port_status);
+ ((u16 *) buf)[1] = cpu_to_le16 (dum->port_status >> 16);
+ break;
+ case SetHubFeature:
+ retval = -EPIPE;
+ break;
+ case SetPortFeature:
+ switch (wValue) {
+ case USB_PORT_FEAT_SUSPEND:
+ dum->port_status |= (1 << USB_PORT_FEAT_SUSPEND);
+ if (dum->driver->suspend) {
+ spin_unlock (&dum->lock);
+ dum->driver->suspend (&dum->gadget);
+ spin_lock (&dum->lock);
+ }
+ break;
+ case USB_PORT_FEAT_RESET:
+ /* if it's already running, disconnect first */
+ if (dum->port_status & USB_PORT_STAT_ENABLE) {
+ dum->port_status &= ~(USB_PORT_STAT_ENABLE
+ | USB_PORT_STAT_LOW_SPEED
+ | USB_PORT_STAT_HIGH_SPEED);
+ if (dum->driver) {
+ dev_dbg (hardware, "disconnect\n");
+ stop_activity (dum, dum->driver);
+ }
+
+ /* FIXME test that code path! */
+ }
+ /* 50msec reset signaling */
+ dum->re_timeout = jiffies + ((HZ * 50)/1000);
+ /* FALLTHROUGH */
+ default:
dum->port_status |= (1 << wValue);
+ }
break;
default:
git://git.onelab.eu / linux-2.6.git / blobdiff