diff options
Diffstat (limited to 'hw/usb')
| -rw-r--r-- | hw/usb/host-libusb.c | 89 | ||||
| -rw-r--r-- | hw/usb/trace-events | 1 |
2 files changed, 76 insertions, 14 deletions
diff --git a/hw/usb/host-libusb.c b/hw/usb/host-libusb.c index e284413..ad7ed8f 100644 --- a/hw/usb/host-libusb.c +++ b/hw/usb/host-libusb.c @@ -80,6 +80,7 @@ struct USBHostDevice { /* properties */ struct USBAutoFilter match; + char *hostdevice; int32_t bootindex; uint32_t iso_urb_count; uint32_t iso_urb_frames; @@ -97,6 +98,7 @@ struct USBHostDevice { int addr; char port[16]; + int hostfd; libusb_device *dev; libusb_device_handle *dh; struct libusb_device_descriptor ddesc; @@ -880,26 +882,45 @@ static void usb_host_ep_update(USBHostDevice *s) libusb_free_config_descriptor(conf); } -static int usb_host_open(USBHostDevice *s, libusb_device *dev) +static int usb_host_open(USBHostDevice *s, libusb_device *dev, int hostfd) { USBDevice *udev = USB_DEVICE(s); - int bus_num = libusb_get_bus_number(dev); - int addr = libusb_get_device_address(dev); + int bus_num = 0; + int addr = 0; int rc; Error *local_err = NULL; if (s->bh_postld_pending) { return -1; } - - trace_usb_host_open_started(bus_num, addr); - if (s->dh != NULL) { goto fail; } - rc = libusb_open(dev, &s->dh); - if (rc != 0) { - goto fail; + + if (dev) { + bus_num = libusb_get_bus_number(dev); + addr = libusb_get_device_address(dev); + trace_usb_host_open_started(bus_num, addr); + + rc = libusb_open(dev, &s->dh); + if (rc != 0) { + goto fail; + } + } else { +#if LIBUSB_API_VERSION >= 0x01000107 + trace_usb_host_open_hostfd(hostfd); + + rc = libusb_wrap_sys_device(ctx, hostfd, &s->dh); + if (rc != 0) { + goto fail; + } + s->hostfd = hostfd; + dev = libusb_get_device(s->dh); + bus_num = libusb_get_bus_number(dev); + addr = libusb_get_device_address(dev); +#else + g_assert_not_reached(); +#endif } s->dev = dev; @@ -951,6 +972,7 @@ fail: static void usb_host_abort_xfers(USBHostDevice *s) { USBHostRequest *r, *rtmp; + int limit = 100; QTAILQ_FOREACH_SAFE(r, &s->requests, next, rtmp) { usb_host_req_abort(r); @@ -961,6 +983,19 @@ static void usb_host_abort_xfers(USBHostDevice *s) memset(&tv, 0, sizeof(tv)); tv.tv_usec = 2500; libusb_handle_events_timeout(ctx, &tv); + if (--limit == 0) { + /* + * Don't wait forever for libusb calling the complete + * callback (which will unlink and free the request). + * + * Leaking memory here, to make sure libusb will not + * access memory which we have released already. + */ + QTAILQ_FOREACH_SAFE(r, &s->requests, next, rtmp) { + QTAILQ_REMOVE(&s->requests, r, next); + } + return; + } } } @@ -988,6 +1023,11 @@ static int usb_host_close(USBHostDevice *s) s->dh = NULL; s->dev = NULL; + if (s->hostfd != -1) { + close(s->hostfd); + s->hostfd = -1; + } + usb_host_auto_check(NULL); return 0; } @@ -1025,9 +1065,6 @@ static libusb_device *usb_host_find_ref(int bus, int addr) libusb_device *ret = NULL; int i, n; - if (usb_host_init() != 0) { - return NULL; - } n = libusb_get_device_list(ctx, &devs); for (i = 0; i < n; i++) { if (libusb_get_bus_number(devs[i]) == bus && @@ -1046,6 +1083,10 @@ static void usb_host_realize(USBDevice *udev, Error **errp) libusb_device *ldev; int rc; + if (usb_host_init() != 0) { + error_setg(errp, "failed to init libusb"); + return; + } if (s->match.vendor_id > 0xffff) { error_setg(errp, "vendorid out of range"); return; @@ -1064,7 +1105,24 @@ static void usb_host_realize(USBDevice *udev, Error **errp) udev->auto_attach = 0; QTAILQ_INIT(&s->requests); QTAILQ_INIT(&s->isorings); + s->hostfd = -1; +#if LIBUSB_API_VERSION >= 0x01000107 + if (s->hostdevice) { + int fd; + s->needs_autoscan = false; + fd = qemu_open(s->hostdevice, O_RDWR); + if (fd < 0) { + error_setg_errno(errp, errno, "failed to open %s", s->hostdevice); + return; + } + rc = usb_host_open(s, NULL, fd); + if (rc < 0) { + error_setg(errp, "failed to open host usb device %s", s->hostdevice); + return; + } + } else +#endif if (s->match.addr && s->match.bus_num && !s->match.vendor_id && !s->match.product_id && @@ -1077,7 +1135,7 @@ static void usb_host_realize(USBDevice *udev, Error **errp) s->match.bus_num, s->match.addr); return; } - rc = usb_host_open(s, ldev); + rc = usb_host_open(s, ldev, 0); libusb_unref_device(ldev); if (rc < 0) { error_setg(errp, "failed to open host usb device %d:%d", @@ -1605,6 +1663,9 @@ static Property usb_host_dev_properties[] = { DEFINE_PROP_STRING("hostport", USBHostDevice, match.port), DEFINE_PROP_UINT32("vendorid", USBHostDevice, match.vendor_id, 0), DEFINE_PROP_UINT32("productid", USBHostDevice, match.product_id, 0), +#if LIBUSB_API_VERSION >= 0x01000107 + DEFINE_PROP_STRING("hostdevice", USBHostDevice, hostdevice), +#endif DEFINE_PROP_UINT32("isobufs", USBHostDevice, iso_urb_count, 4), DEFINE_PROP_UINT32("isobsize", USBHostDevice, iso_urb_frames, 32), DEFINE_PROP_BOOL("guest-reset", USBHostDevice, @@ -1723,7 +1784,7 @@ static void usb_host_auto_check(void *unused) if (s->dh != NULL) { continue; } - if (usb_host_open(s, devs[i]) < 0) { + if (usb_host_open(s, devs[i], 0) < 0) { s->errcount++; continue; } diff --git a/hw/usb/trace-events b/hw/usb/trace-events index 5817ce4..e9cdeee 100644 --- a/hw/usb/trace-events +++ b/hw/usb/trace-events @@ -291,6 +291,7 @@ usb_mtp_file_monitor_event(int dev, const char *path, const char *s) "dev %d, pa # host-libusb.c usb_host_open_started(int bus, int addr) "dev %d:%d" +usb_host_open_hostfd(int hostfd) "hostfd %d" usb_host_open_success(int bus, int addr) "dev %d:%d" usb_host_open_failure(int bus, int addr) "dev %d:%d" usb_host_close(int bus, int addr) "dev %d:%d" |