Changeset 8be7819 in mainline for uspace/drv/bus/usb/usbmid/main.c

Timestamp:

2011-10-30T19:59:15Z (12 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

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

Children:

cae002c

Parents:

e462909

Message:

usbmid: Implement dev_remove and some minor refactoring.

File:

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

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

@@ -74 +74 @@
 {
         assert(dev);
-        int ret = ENOTSUP;
+
+        /* Remove ctl function */
         usb_mid_t *usb_mid = dev->driver_data;
-        assert(usb_mid);
+        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);
 
-        /* Signal all interface functions */
-        list_foreach(usb_mid->interface_list, item) {
+        /* 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("Signaling remove to child for interface "
-                    "%d (%s).\n", iface->interface_no,
+                usb_log_info("Removing child for interface %d (%s).\n",
+                    iface->interface_no,
                     usb_str_class(iface->interface->interface_class));
-                // TODO cascade the call.
+
+                /* 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 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;
@@ -117 +146 @@
                 usbmid_interface_t *iface = usbmid_interface_from_link(item);
 
-                usb_log_info("Removing child for interface %d (%s).\n",
+                usb_log_info("Child for interface %d (%s) gone.\n",
                     iface->interface_no,
                     usb_str_class(iface->interface->interface_class));