Changes in uspace/drv/bus/usb/usbmid/main.c [5203e256:5153b58] in mainline

File:

• uspace/drv/bus/usb/usbmid/main.c (modified) (2 diffs)

uspace/drv/bus/usb/usbmid/main.c

@@ -49 +49 @@
  * @return Error code.
  */
-static int usbmid_add_device(usb_device_t *dev)
+static int usbmid_device_add(usb_device_t *dev)
 {
         usb_log_info("Taking care of new MID `%s'.\n", dev->ddf_dev->name);
@@ -65 +65 @@
         return EOK;
 }
+/*----------------------------------------------------------------------------*/
+/** Callback when a MID device is about to be removed from the host.
+ *
+ * @param dev USB device representing the removed device.
+ * @return Error code.
+ */
+static int usbmid_device_remove(usb_device_t *dev)
+{
+        assert(dev);
+        usb_mid_t *usb_mid = dev->driver_data;
+        assert(usb_mid);
+
+        /* Remove ctl function */
+        int ret = ddf_fun_unbind(usb_mid->ctl_fun);
+        if (ret != EOK) {
+                usb_log_error("Failed to unbind USB MID ctl function: %s.\n",
+                    str_error(ret));
+                return ret;
+        }
+        ddf_fun_destroy(usb_mid->ctl_fun);
+
+        /* Remove all children */
+        while (!list_empty(&usb_mid->interface_list)) {
+                link_t *item = list_first(&usb_mid->interface_list);
+                list_remove(item);
+
+                usbmid_interface_t *iface = usbmid_interface_from_link(item);
+
+                usb_log_info("Removing child for interface %d (%s).\n",
+                    iface->interface_no,
+                    usb_str_class(iface->interface->interface_class));
+
+                /* Tell the child to go off-line. */
+                int pret = ddf_fun_offline(iface->fun);
+                if (pret != EOK) {
+                        usb_log_warning("Failed to turn off child for interface"
+                            " %d (%s): %s\n", iface->interface_no,
+                            usb_str_class(iface->interface->interface_class),
+                            str_error(pret));
+                        ret = pret;
+                }
+
+                /* Now remove the child. */
+                pret = usbmid_interface_destroy(iface);
+                if (pret != EOK) {
+                        usb_log_error("Failed to destroy child for interface "
+                            "%d (%s): %s\n", iface->interface_no,
+                            usb_str_class(iface->interface->interface_class),
+                            str_error(pret));
+                        ret = pret;
+                }
+        }
+        return ret;
+}
+/*----------------------------------------------------------------------------*/
+/** Callback when a MID device was removed from the host.
+ *
+ * @param dev USB device representing the removed device.
+ * @return Error code.
+ */
+static int usbmid_device_gone(usb_device_t *dev)
+{
+        assert(dev);
+        usb_mid_t *usb_mid = dev->driver_data;
+        assert(usb_mid);
+
+        usb_log_info("USB MID gone: `%s'.\n", dev->ddf_dev->name);
+
+        /* Remove ctl function */
+        int ret = ddf_fun_unbind(usb_mid->ctl_fun);
+        if (ret != EOK) {
+                usb_log_error("Failed to unbind USB MID ctl function: %s.\n",
+                    str_error(ret));
+                return ret;
+        }
+        ddf_fun_destroy(usb_mid->ctl_fun);
+
+        /* Now remove all other functions */
+        while (!list_empty(&usb_mid->interface_list)) {
+                link_t *item = list_first(&usb_mid->interface_list);
+                list_remove(item);
+
+                usbmid_interface_t *iface = usbmid_interface_from_link(item);
+
+                usb_log_info("Child for interface %d (%s) gone.\n",
+                    iface->interface_no,
+                    usb_str_class(iface->interface->interface_class));
+
+                const int pret = usbmid_interface_destroy(iface);
+                if (pret != EOK) {
+                        usb_log_error("Failed to remove child for interface "
+                            "%d (%s): %s\n",
+                            iface->interface_no,
+                            usb_str_class(iface->interface->interface_class),
+                            str_error(pret));
+                        ret = pret;
+                }
+        }
+        return ret;
+}
 
 /** USB MID driver ops. */
-static usb_driver_ops_t mid_driver_ops = {
-        .add_device = usbmid_add_device,
+static const usb_driver_ops_t mid_driver_ops = {
+        .device_add = usbmid_device_add,
+        .device_rem = usbmid_device_remove,
+        .device_gone = usbmid_device_gone,
 };
 
 /** USB MID driver. */
-static usb_driver_t mid_driver = {
+static const usb_driver_t mid_driver = {
         .name = NAME,
         .ops = &mid_driver_ops,