LXR qemu/tests/libqos/usb.c

   1/*
   2 * common code shared by usb tests
   3 *
   4 * Copyright (c) 2014 Red Hat, Inc
   5 *
   6 * Authors:
   7 *     Gerd Hoffmann <kraxel@redhat.com>
   8 *     John Snow <jsnow@redhat.com>
   9 *     Igor Mammedov <imammedo@redhat.com>
  10 *
  11 * This work is licensed under the terms of the GNU GPL, version 2 or later.
  12 * See the COPYING file in the top-level directory.
  13 */
  14#include "qemu/osdep.h"
  15#include "libqtest.h"
  16#include "hw/usb/uhci-regs.h"
  17#include "libqos/usb.h"
  18
  19void qusb_pci_init_one(QPCIBus *pcibus, struct qhc *hc, uint32_t devfn, int bar)
  20{
  21    hc->dev = qpci_device_find(pcibus, devfn);
  22    g_assert(hc->dev != NULL);
  23    qpci_device_enable(hc->dev);
  24    hc->bar = qpci_iomap(hc->dev, bar, NULL);
  25}
  26
  27void uhci_deinit(struct qhc *hc)
  28{
  29    g_free(hc->dev);
  30}
  31
  32void uhci_port_test(struct qhc *hc, int port, uint16_t expect)
  33{
  34    uint16_t value = qpci_io_readw(hc->dev, hc->bar, 0x10 + 2 * port);
  35    uint16_t mask = ~(UHCI_PORT_WRITE_CLEAR | UHCI_PORT_RSVD1);
  36
  37    g_assert((value & mask) == (expect & mask));
  38}
  39
  40void usb_test_hotplug(const char *hcd_id, const int port,
  41                      void (*port_check)(void))
  42{
  43    char  *id = g_strdup_printf("usbdev%d", port);
  44
  45    qtest_qmp_device_add("usb-tablet", id, "'port': '%d', 'bus': '%s.0'",
  46                         port, hcd_id);
  47
  48    if (port_check) {
  49        port_check();
  50    }
  51
  52    qtest_qmp_device_del(id);
  53
  54    g_free(id);
  55}
  56