tests/qtest/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 "usb.h"
  18
  19 void 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
  27 void uhci_deinit(struct qhc *hc)
  28 {
  29     g_free(hc->dev);
  30 }
  31
  32 void 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
  40 void usb_test_hotplug(QTestState *qts, const char *hcd_id, const char *port,
  41                       void (*port_check)(void))
  42 {
  43     char *id = g_strdup_printf("usbdev%s", port);
  44     char *bus = g_strdup_printf("%s.0", hcd_id);
  45
  46     qtest_qmp_device_add(qts, "usb-tablet", id, "{'port': %s, 'bus': %s}",
  47                          port, bus);
  48
  49     if (port_check) {
  50         port_check();
  51     }
  52
  53     qtest_qmp_device_del(qts, id);
  54
  55     g_free(bus);
  56     g_free(id);
  57 }