From patchwork Wed Nov 17 16:43:57 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gleb Natapov X-Patchwork-Id: 333391 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id oAHGiXlC020685 for ; Wed, 17 Nov 2010 16:44:35 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935013Ab0KQQoc (ORCPT ); Wed, 17 Nov 2010 11:44:32 -0500 Received: from mx1.redhat.com ([209.132.183.28]:45444 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934988Ab0KQQoM (ORCPT ); Wed, 17 Nov 2010 11:44:12 -0500 Received: from int-mx02.intmail.prod.int.phx2.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id oAHGi651017007 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 17 Nov 2010 11:44:06 -0500 Received: from dhcp-1-237.tlv.redhat.com (dhcp-1-237.tlv.redhat.com [10.35.1.237]) by int-mx02.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id oAHGi6j1005173; Wed, 17 Nov 2010 11:44:06 -0500 Received: by dhcp-1-237.tlv.redhat.com (Postfix, from userid 13519) id 6B179133F80; Wed, 17 Nov 2010 18:44:04 +0200 (IST) From: Gleb Natapov To: qemu-devel@nongnu.org Cc: kvm@vger.kernel.org, blauwirbel@gmail.com, armbru@redhat.com, alex.williamson@redhat.com, mst@redhat.com, kevin@koconnor.net Subject: [PATCHv6 10/16] Add get_dev_path callback for usb bus. Date: Wed, 17 Nov 2010 18:43:57 +0200 Message-Id: <1290012243-6087-11-git-send-email-gleb@redhat.com> In-Reply-To: <1290012243-6087-1-git-send-email-gleb@redhat.com> References: <1290012243-6087-1-git-send-email-gleb@redhat.com> X-Scanned-By: MIMEDefang 2.67 on 10.5.11.12 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter1.kernel.org [140.211.167.41]); Wed, 17 Nov 2010 16:44:35 +0000 (UTC) diff --git a/hw/usb-bus.c b/hw/usb-bus.c index 256b881..8b4583c 100644 --- a/hw/usb-bus.c +++ b/hw/usb-bus.c @@ -5,11 +5,13 @@ #include "monitor.h" static void usb_bus_dev_print(Monitor *mon, DeviceState *qdev, int indent); +static char *usbbus_get_fw_dev_path(DeviceState *dev); static struct BusInfo usb_bus_info = { .name = "USB", .size = sizeof(USBBus), .print_dev = usb_bus_dev_print, + .get_fw_dev_path = usbbus_get_fw_dev_path, }; static int next_usb_bus = 0; static QTAILQ_HEAD(, USBBus) busses = QTAILQ_HEAD_INITIALIZER(busses); @@ -307,3 +309,43 @@ USBDevice *usbdevice_create(const char *cmdline) } return usb->usbdevice_init(params); } + +static int usbbus_get_fw_dev_path_helper(USBDevice *d, USBBus *bus, char *p, + int len) +{ + int l = 0; + USBPort *port; + + QTAILQ_FOREACH(port, &bus->used, next) { + if (port->dev == d) { + if (port->pdev) { + l = usbbus_get_fw_dev_path_helper(port->pdev, bus, p, len); + } + l += snprintf(p + l, len - l, "%s@%x/", qdev_fw_name(&d->qdev), + port->index); + break; + } + } + + return l; +} + +static char *usbbus_get_fw_dev_path(DeviceState *dev) +{ + USBDevice *d = (USBDevice*)dev; + USBBus *bus = usb_bus_from_device(d); + char path[100]; + int l; + + assert(d->attached != 0); + + l = usbbus_get_fw_dev_path_helper(d, bus, path, sizeof(path)); + + if (l == 0) { + abort(); + } + + path[l-1] = '\0'; + + return strdup(path); +}