From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gleb Natapov 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> References: <1290012243-6087-1-git-send-email-gleb@redhat.com> Cc: kvm@vger.kernel.org, blauwirbel@gmail.com, armbru@redhat.com, alex.williamson@redhat.com, mst@redhat.com, kevin@koconnor.net To: qemu-devel@nongnu.org Return-path: 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 In-Reply-To: <1290012243-6087-1-git-send-email-gleb@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: Signed-off-by: Gleb Natapov --- hw/usb-bus.c | 42 ++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 42 insertions(+), 0 deletions(-) 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); +} -- 1.7.2.3