Changeset 5dfb70c9 in mainline for uspace/drv/bus/usb/uhci/hc.c

Timestamp:

2017-12-29T12:10:56Z (6 years ago)

Author:

Petr Manek <petr.manek@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

5c75456

Parents:

415c5116

Message:

uhci: moved offline call from usbhost, terminating hanging transfers

File:

• uspace/drv/bus/usb/uhci/hc.c (modified) (2 diffs)

uspace/drv/bus/usb/uhci/hc.c

@@ -321 +321 @@
 }
 
+static int device_online(device_t *device)
+{
+        // FIXME: Implement me!
+
+        return ENOTSUP;
+}
+
+static int device_offline(device_t *device)
+{
+        hc_t *instance = bus_to_hc(device->bus);
+        assert(instance);
+
+        int err;
+        /* Tear down all drivers working with the device. */
+        if ((err = ddf_fun_offline(device->fun))) {
+                return err;
+        }
+
+        /* At this point, all drivers are assumed to have already terminated
+         * in a consistent way. The following code just cleans up hanging
+         * transfers if there are any. */
+
+        /* Block creation of new endpoints and transfers. */
+        usb_log_info("Device(%d): Going offline.", device->address);
+        fibril_mutex_lock(&device->guard);
+        device->online = false;
+        fibril_mutex_unlock(&device->guard);
+
+        /* Abort all transfers to all endpoints. */
+        transfer_list_abort_device(&instance->transfers_interrupt, device->address);
+        transfer_list_abort_device(&instance->transfers_control_slow, device->address);
+        transfer_list_abort_device(&instance->transfers_control_full, device->address);
+        transfer_list_abort_device(&instance->transfers_bulk_full, device->address);
+
+        return EOK;
+}
+
 static int hc_status(bus_t *, uint32_t *);
 static int hc_schedule(usb_transfer_batch_t *);
@@ -334 +371 @@
         .batch_schedule = hc_schedule,
         .batch_destroy = destroy_transfer_batch,
+
+        .device_online = device_online,
+        .device_offline = device_offline,
 };