root / hw / usb / host-libusb.c @ c3268cc1
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/*
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* Linux host USB redirector
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*
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* Copyright (c) 2005 Fabrice Bellard
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*
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* Copyright (c) 2008 Max Krasnyansky
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* Support for host device auto connect & disconnect
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* Major rewrite to support fully async operation
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*
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* Copyright 2008 TJ <linux@tjworld.net>
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* Added flexible support for /dev/bus/usb /sys/bus/usb/devices in addition
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* to the legacy /proc/bus/usb USB device discovery and handling
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*
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* (c) 2012 Gerd Hoffmann <kraxel@redhat.com>
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* Completely rewritten to use libusb instead of usbfs ioctls.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <poll.h> |
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#include <libusb.h> |
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|
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#include "qemu-common.h" |
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#include "monitor/monitor.h" |
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#include "sysemu/sysemu.h" |
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#include "trace.h" |
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|
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#include "hw/usb.h" |
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|
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/* ------------------------------------------------------------------------ */
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#define TYPE_USB_HOST_DEVICE "usb-host" |
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#define USB_HOST_DEVICE(obj) \
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OBJECT_CHECK(USBHostDevice, (obj), TYPE_USB_HOST_DEVICE) |
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|
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typedef struct USBHostDevice USBHostDevice; |
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typedef struct USBHostRequest USBHostRequest; |
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typedef struct USBHostIsoXfer USBHostIsoXfer; |
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typedef struct USBHostIsoRing USBHostIsoRing; |
| 56 |
|
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struct USBAutoFilter {
|
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uint32_t bus_num; |
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uint32_t addr; |
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char *port;
|
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uint32_t vendor_id; |
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uint32_t product_id; |
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}; |
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|
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enum USBHostDeviceOptions {
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USB_HOST_OPT_PIPELINE, |
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}; |
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|
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struct USBHostDevice {
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USBDevice parent_obj; |
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|
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/* properties */
|
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struct USBAutoFilter match;
|
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int32_t bootindex; |
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uint32_t iso_urb_count; |
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uint32_t iso_urb_frames; |
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uint32_t options; |
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uint32_t loglevel; |
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|
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/* state */
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QTAILQ_ENTRY(USBHostDevice) next; |
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int seen, errcount;
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int bus_num;
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int addr;
|
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char port[16]; |
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|
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libusb_device *dev; |
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libusb_device_handle *dh; |
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struct libusb_device_descriptor ddesc;
|
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|
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struct {
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bool detached;
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bool claimed;
|
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} ifs[USB_MAX_INTERFACES]; |
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|
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/* callbacks & friends */
|
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QEMUBH *bh_nodev; |
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QEMUBH *bh_postld; |
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Notifier exit; |
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|
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/* request queues */
|
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QTAILQ_HEAD(, USBHostRequest) requests; |
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QTAILQ_HEAD(, USBHostIsoRing) isorings; |
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}; |
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|
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struct USBHostRequest {
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USBHostDevice *host; |
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USBPacket *p; |
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bool in;
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struct libusb_transfer *xfer;
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unsigned char *buffer; |
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unsigned char *cbuf; |
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unsigned int clen; |
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QTAILQ_ENTRY(USBHostRequest) next; |
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}; |
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|
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struct USBHostIsoXfer {
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USBHostIsoRing *ring; |
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struct libusb_transfer *xfer;
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bool copy_complete;
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unsigned int packet; |
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QTAILQ_ENTRY(USBHostIsoXfer) next; |
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}; |
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|
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struct USBHostIsoRing {
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USBHostDevice *host; |
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USBEndpoint *ep; |
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QTAILQ_HEAD(, USBHostIsoXfer) unused; |
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QTAILQ_HEAD(, USBHostIsoXfer) inflight; |
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QTAILQ_HEAD(, USBHostIsoXfer) copy; |
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QTAILQ_ENTRY(USBHostIsoRing) next; |
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}; |
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static QTAILQ_HEAD(, USBHostDevice) hostdevs =
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QTAILQ_HEAD_INITIALIZER(hostdevs); |
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static void usb_host_auto_check(void *unused); |
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static void usb_host_release_interfaces(USBHostDevice *s); |
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static void usb_host_nodev(USBHostDevice *s); |
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static void usb_host_attach_kernel(USBHostDevice *s); |
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/* ------------------------------------------------------------------------ */
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#define CONTROL_TIMEOUT 10000 /* 10 sec */ |
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#define BULK_TIMEOUT 0 /* unlimited */ |
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#define INTR_TIMEOUT 0 /* unlimited */ |
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static const char *speed_name[] = { |
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[LIBUSB_SPEED_UNKNOWN] = "?",
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[LIBUSB_SPEED_LOW] = "1.5",
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[LIBUSB_SPEED_FULL] = "12",
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[LIBUSB_SPEED_HIGH] = "480",
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[LIBUSB_SPEED_SUPER] = "5000",
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}; |
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static const unsigned int speed_map[] = { |
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[LIBUSB_SPEED_LOW] = USB_SPEED_LOW, |
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[LIBUSB_SPEED_FULL] = USB_SPEED_FULL, |
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[LIBUSB_SPEED_HIGH] = USB_SPEED_HIGH, |
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[LIBUSB_SPEED_SUPER] = USB_SPEED_SUPER, |
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}; |
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|
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static const unsigned int status_map[] = { |
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[LIBUSB_TRANSFER_COMPLETED] = USB_RET_SUCCESS, |
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[LIBUSB_TRANSFER_ERROR] = USB_RET_IOERROR, |
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[LIBUSB_TRANSFER_TIMED_OUT] = USB_RET_IOERROR, |
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[LIBUSB_TRANSFER_CANCELLED] = USB_RET_IOERROR, |
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[LIBUSB_TRANSFER_STALL] = USB_RET_STALL, |
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[LIBUSB_TRANSFER_NO_DEVICE] = USB_RET_NODEV, |
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[LIBUSB_TRANSFER_OVERFLOW] = USB_RET_BABBLE, |
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}; |
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|
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static const char *err_names[] = { |
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[-LIBUSB_ERROR_IO] = "IO",
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[-LIBUSB_ERROR_INVALID_PARAM] = "INVALID_PARAM",
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[-LIBUSB_ERROR_ACCESS] = "ACCESS",
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[-LIBUSB_ERROR_NO_DEVICE] = "NO_DEVICE",
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[-LIBUSB_ERROR_NOT_FOUND] = "NOT_FOUND",
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[-LIBUSB_ERROR_BUSY] = "BUSY",
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[-LIBUSB_ERROR_TIMEOUT] = "TIMEOUT",
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[-LIBUSB_ERROR_OVERFLOW] = "OVERFLOW",
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[-LIBUSB_ERROR_PIPE] = "PIPE",
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[-LIBUSB_ERROR_INTERRUPTED] = "INTERRUPTED",
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[-LIBUSB_ERROR_NO_MEM] = "NO_MEM",
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[-LIBUSB_ERROR_NOT_SUPPORTED] = "NOT_SUPPORTED",
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[-LIBUSB_ERROR_OTHER] = "OTHER",
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}; |
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static libusb_context *ctx;
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static uint32_t loglevel;
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|
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static void usb_host_handle_fd(void *opaque) |
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{
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struct timeval tv = { 0, 0 }; |
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libusb_handle_events_timeout(ctx, &tv); |
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} |
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static void usb_host_add_fd(int fd, short events, void *user_data) |
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{
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qemu_set_fd_handler(fd, |
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(events & POLLIN) ? usb_host_handle_fd : NULL,
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(events & POLLOUT) ? usb_host_handle_fd : NULL,
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ctx); |
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} |
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static void usb_host_del_fd(int fd, void *user_data) |
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{
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qemu_set_fd_handler(fd, NULL, NULL, NULL); |
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} |
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static int usb_host_init(void) |
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{
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const struct libusb_pollfd **poll; |
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int i, rc;
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if (ctx) {
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return 0; |
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} |
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rc = libusb_init(&ctx); |
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if (rc != 0) { |
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return -1; |
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} |
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libusb_set_debug(ctx, loglevel); |
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|
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libusb_set_pollfd_notifiers(ctx, usb_host_add_fd, |
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usb_host_del_fd, |
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ctx); |
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poll = libusb_get_pollfds(ctx); |
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if (poll) {
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for (i = 0; poll[i] != NULL; i++) { |
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usb_host_add_fd(poll[i]->fd, poll[i]->events, ctx); |
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} |
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} |
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free(poll); |
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return 0; |
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} |
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|
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static int usb_host_get_port(libusb_device *dev, char *port, size_t len) |
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{
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uint8_t path[7];
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size_t off; |
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int rc, i;
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rc = libusb_get_port_path(ctx, dev, path, 7);
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if (rc < 0) { |
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return 0; |
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} |
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off = snprintf(port, len, "%d", path[0]); |
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for (i = 1; i < rc; i++) { |
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off += snprintf(port+off, len-off, ".%d", path[i]);
|
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} |
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return off;
|
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} |
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|
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static void usb_host_libusb_error(const char *func, int rc) |
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{
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const char *errname; |
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|
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if (rc >= 0) { |
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return;
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} |
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|
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if (-rc < ARRAY_SIZE(err_names) && err_names[-rc]) {
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errname = err_names[-rc]; |
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} else {
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errname = "?";
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} |
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fprintf(stderr, "%s: %d [%s]\n", func, rc, errname);
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} |
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|
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/* ------------------------------------------------------------------------ */
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static bool usb_host_use_combining(USBEndpoint *ep) |
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{
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int type;
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|
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if (!ep->pipeline) {
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return false; |
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} |
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if (ep->pid != USB_TOKEN_IN) {
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return false; |
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} |
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type = usb_ep_get_type(ep->dev, ep->pid, ep->nr); |
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if (type != USB_ENDPOINT_XFER_BULK) {
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return false; |
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} |
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return true; |
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} |
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|
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/* ------------------------------------------------------------------------ */
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static USBHostRequest *usb_host_req_alloc(USBHostDevice *s, USBPacket *p,
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bool in, size_t bufsize)
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{
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USBHostRequest *r = g_new0(USBHostRequest, 1);
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r->host = s; |
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r->p = p; |
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r->in = in; |
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r->xfer = libusb_alloc_transfer(0);
|
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if (bufsize) {
|
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r->buffer = g_malloc(bufsize); |
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} |
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QTAILQ_INSERT_TAIL(&s->requests, r, next); |
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return r;
|
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} |
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|
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static void usb_host_req_free(USBHostRequest *r) |
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{
|
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if (r->host) {
|
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QTAILQ_REMOVE(&r->host->requests, r, next); |
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} |
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libusb_free_transfer(r->xfer); |
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g_free(r->buffer); |
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g_free(r); |
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} |
| 317 |
|
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static USBHostRequest *usb_host_req_find(USBHostDevice *s, USBPacket *p)
|
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{
|
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USBHostRequest *r; |
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|
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QTAILQ_FOREACH(r, &s->requests, next) {
|
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if (r->p == p) {
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return r;
|
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} |
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} |
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return NULL; |
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} |
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|
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static void usb_host_req_complete_ctrl(struct libusb_transfer *xfer) |
| 331 |
{
|
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USBHostRequest *r = xfer->user_data; |
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USBHostDevice *s = r->host; |
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bool disconnect = (xfer->status == LIBUSB_TRANSFER_NO_DEVICE);
|
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|
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if (r->p == NULL) { |
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goto out; /* request was canceled */ |
| 338 |
} |
| 339 |
|
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r->p->status = status_map[xfer->status]; |
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r->p->actual_length = xfer->actual_length; |
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if (r->in && xfer->actual_length) {
|
| 343 |
memcpy(r->cbuf, r->buffer + 8, xfer->actual_length);
|
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} |
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trace_usb_host_req_complete(s->bus_num, s->addr, r->p, |
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r->p->status, r->p->actual_length); |
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usb_generic_async_ctrl_complete(USB_DEVICE(s), r->p); |
| 348 |
|
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out:
|
| 350 |
usb_host_req_free(r); |
| 351 |
if (disconnect) {
|
| 352 |
usb_host_nodev(s); |
| 353 |
} |
| 354 |
} |
| 355 |
|
| 356 |
static void usb_host_req_complete_data(struct libusb_transfer *xfer) |
| 357 |
{
|
| 358 |
USBHostRequest *r = xfer->user_data; |
| 359 |
USBHostDevice *s = r->host; |
| 360 |
bool disconnect = (xfer->status == LIBUSB_TRANSFER_NO_DEVICE);
|
| 361 |
|
| 362 |
if (r->p == NULL) { |
| 363 |
goto out; /* request was canceled */ |
| 364 |
} |
| 365 |
|
| 366 |
r->p->status = status_map[xfer->status]; |
| 367 |
if (r->in && xfer->actual_length) {
|
| 368 |
usb_packet_copy(r->p, r->buffer, xfer->actual_length); |
| 369 |
} |
| 370 |
trace_usb_host_req_complete(s->bus_num, s->addr, r->p, |
| 371 |
r->p->status, r->p->actual_length); |
| 372 |
if (usb_host_use_combining(r->p->ep)) {
|
| 373 |
usb_combined_input_packet_complete(USB_DEVICE(s), r->p); |
| 374 |
} else {
|
| 375 |
usb_packet_complete(USB_DEVICE(s), r->p); |
| 376 |
} |
| 377 |
|
| 378 |
out:
|
| 379 |
usb_host_req_free(r); |
| 380 |
if (disconnect) {
|
| 381 |
usb_host_nodev(s); |
| 382 |
} |
| 383 |
} |
| 384 |
|
| 385 |
static void usb_host_req_abort(USBHostRequest *r) |
| 386 |
{
|
| 387 |
USBHostDevice *s = r->host; |
| 388 |
bool inflight = (r->p && r->p->state == USB_RET_ASYNC);
|
| 389 |
|
| 390 |
if (inflight) {
|
| 391 |
r->p->status = USB_RET_NODEV; |
| 392 |
trace_usb_host_req_complete(s->bus_num, s->addr, r->p, |
| 393 |
r->p->status, r->p->actual_length); |
| 394 |
if (r->p->ep->nr == 0) { |
| 395 |
usb_generic_async_ctrl_complete(USB_DEVICE(s), r->p); |
| 396 |
} else {
|
| 397 |
usb_packet_complete(USB_DEVICE(s), r->p); |
| 398 |
} |
| 399 |
r->p = NULL;
|
| 400 |
} |
| 401 |
|
| 402 |
QTAILQ_REMOVE(&r->host->requests, r, next); |
| 403 |
r->host = NULL;
|
| 404 |
|
| 405 |
if (inflight) {
|
| 406 |
libusb_cancel_transfer(r->xfer); |
| 407 |
} |
| 408 |
} |
| 409 |
|
| 410 |
/* ------------------------------------------------------------------------ */
|
| 411 |
|
| 412 |
static void usb_host_req_complete_iso(struct libusb_transfer *transfer) |
| 413 |
{
|
| 414 |
USBHostIsoXfer *xfer = transfer->user_data; |
| 415 |
|
| 416 |
if (!xfer) {
|
| 417 |
/* USBHostIsoXfer released while inflight */
|
| 418 |
g_free(transfer->buffer); |
| 419 |
libusb_free_transfer(transfer); |
| 420 |
return;
|
| 421 |
} |
| 422 |
|
| 423 |
QTAILQ_REMOVE(&xfer->ring->inflight, xfer, next); |
| 424 |
if (QTAILQ_EMPTY(&xfer->ring->inflight)) {
|
| 425 |
USBHostDevice *s = xfer->ring->host; |
| 426 |
trace_usb_host_iso_stop(s->bus_num, s->addr, xfer->ring->ep->nr); |
| 427 |
} |
| 428 |
if (xfer->ring->ep->pid == USB_TOKEN_IN) {
|
| 429 |
QTAILQ_INSERT_TAIL(&xfer->ring->copy, xfer, next); |
| 430 |
} else {
|
| 431 |
QTAILQ_INSERT_TAIL(&xfer->ring->unused, xfer, next); |
| 432 |
} |
| 433 |
} |
| 434 |
|
| 435 |
static USBHostIsoRing *usb_host_iso_alloc(USBHostDevice *s, USBEndpoint *ep)
|
| 436 |
{
|
| 437 |
USBHostIsoRing *ring = g_new0(USBHostIsoRing, 1);
|
| 438 |
USBHostIsoXfer *xfer; |
| 439 |
/* FIXME: check interval (for now assume one xfer per frame) */
|
| 440 |
int packets = s->iso_urb_frames;
|
| 441 |
int i;
|
| 442 |
|
| 443 |
ring->host = s; |
| 444 |
ring->ep = ep; |
| 445 |
QTAILQ_INIT(&ring->unused); |
| 446 |
QTAILQ_INIT(&ring->inflight); |
| 447 |
QTAILQ_INIT(&ring->copy); |
| 448 |
QTAILQ_INSERT_TAIL(&s->isorings, ring, next); |
| 449 |
|
| 450 |
for (i = 0; i < s->iso_urb_count; i++) { |
| 451 |
xfer = g_new0(USBHostIsoXfer, 1);
|
| 452 |
xfer->ring = ring; |
| 453 |
xfer->xfer = libusb_alloc_transfer(packets); |
| 454 |
xfer->xfer->dev_handle = s->dh; |
| 455 |
xfer->xfer->type = LIBUSB_TRANSFER_TYPE_ISOCHRONOUS; |
| 456 |
|
| 457 |
xfer->xfer->endpoint = ring->ep->nr; |
| 458 |
if (ring->ep->pid == USB_TOKEN_IN) {
|
| 459 |
xfer->xfer->endpoint |= USB_DIR_IN; |
| 460 |
} |
| 461 |
xfer->xfer->callback = usb_host_req_complete_iso; |
| 462 |
xfer->xfer->user_data = xfer; |
| 463 |
|
| 464 |
xfer->xfer->num_iso_packets = packets; |
| 465 |
xfer->xfer->length = ring->ep->max_packet_size * packets; |
| 466 |
xfer->xfer->buffer = g_malloc0(xfer->xfer->length); |
| 467 |
|
| 468 |
QTAILQ_INSERT_TAIL(&ring->unused, xfer, next); |
| 469 |
} |
| 470 |
|
| 471 |
return ring;
|
| 472 |
} |
| 473 |
|
| 474 |
static USBHostIsoRing *usb_host_iso_find(USBHostDevice *s, USBEndpoint *ep)
|
| 475 |
{
|
| 476 |
USBHostIsoRing *ring; |
| 477 |
|
| 478 |
QTAILQ_FOREACH(ring, &s->isorings, next) {
|
| 479 |
if (ring->ep == ep) {
|
| 480 |
return ring;
|
| 481 |
} |
| 482 |
} |
| 483 |
return NULL; |
| 484 |
} |
| 485 |
|
| 486 |
static void usb_host_iso_reset_xfer(USBHostIsoXfer *xfer) |
| 487 |
{
|
| 488 |
libusb_set_iso_packet_lengths(xfer->xfer, |
| 489 |
xfer->ring->ep->max_packet_size); |
| 490 |
xfer->packet = 0;
|
| 491 |
xfer->copy_complete = false;
|
| 492 |
} |
| 493 |
|
| 494 |
static void usb_host_iso_free_xfer(USBHostIsoXfer *xfer, bool inflight) |
| 495 |
{
|
| 496 |
if (inflight) {
|
| 497 |
xfer->xfer->user_data = NULL;
|
| 498 |
} else {
|
| 499 |
g_free(xfer->xfer->buffer); |
| 500 |
libusb_free_transfer(xfer->xfer); |
| 501 |
} |
| 502 |
g_free(xfer); |
| 503 |
} |
| 504 |
|
| 505 |
static void usb_host_iso_free(USBHostIsoRing *ring) |
| 506 |
{
|
| 507 |
USBHostIsoXfer *xfer; |
| 508 |
|
| 509 |
while ((xfer = QTAILQ_FIRST(&ring->inflight)) != NULL) { |
| 510 |
QTAILQ_REMOVE(&ring->inflight, xfer, next); |
| 511 |
usb_host_iso_free_xfer(xfer, true);
|
| 512 |
} |
| 513 |
while ((xfer = QTAILQ_FIRST(&ring->unused)) != NULL) { |
| 514 |
QTAILQ_REMOVE(&ring->unused, xfer, next); |
| 515 |
usb_host_iso_free_xfer(xfer, false);
|
| 516 |
} |
| 517 |
while ((xfer = QTAILQ_FIRST(&ring->copy)) != NULL) { |
| 518 |
QTAILQ_REMOVE(&ring->copy, xfer, next); |
| 519 |
usb_host_iso_free_xfer(xfer, false);
|
| 520 |
} |
| 521 |
|
| 522 |
QTAILQ_REMOVE(&ring->host->isorings, ring, next); |
| 523 |
g_free(ring); |
| 524 |
} |
| 525 |
|
| 526 |
static void usb_host_iso_free_all(USBHostDevice *s) |
| 527 |
{
|
| 528 |
USBHostIsoRing *ring; |
| 529 |
|
| 530 |
while ((ring = QTAILQ_FIRST(&s->isorings)) != NULL) { |
| 531 |
usb_host_iso_free(ring); |
| 532 |
} |
| 533 |
} |
| 534 |
|
| 535 |
static bool usb_host_iso_data_copy(USBHostIsoXfer *xfer, USBPacket *p) |
| 536 |
{
|
| 537 |
unsigned int psize; |
| 538 |
unsigned char *buf; |
| 539 |
|
| 540 |
buf = libusb_get_iso_packet_buffer_simple(xfer->xfer, xfer->packet); |
| 541 |
if (p->pid == USB_TOKEN_OUT) {
|
| 542 |
psize = p->iov.size; |
| 543 |
if (psize > xfer->ring->ep->max_packet_size) {
|
| 544 |
/* should not happen (guest bug) */
|
| 545 |
psize = xfer->ring->ep->max_packet_size; |
| 546 |
} |
| 547 |
xfer->xfer->iso_packet_desc[xfer->packet].length = psize; |
| 548 |
} else {
|
| 549 |
psize = xfer->xfer->iso_packet_desc[xfer->packet].actual_length; |
| 550 |
if (psize > p->iov.size) {
|
| 551 |
/* should not happen (guest bug) */
|
| 552 |
psize = p->iov.size; |
| 553 |
} |
| 554 |
} |
| 555 |
usb_packet_copy(p, buf, psize); |
| 556 |
xfer->packet++; |
| 557 |
xfer->copy_complete = (xfer->packet == xfer->xfer->num_iso_packets); |
| 558 |
return xfer->copy_complete;
|
| 559 |
} |
| 560 |
|
| 561 |
static void usb_host_iso_data_in(USBHostDevice *s, USBPacket *p) |
| 562 |
{
|
| 563 |
USBHostIsoRing *ring; |
| 564 |
USBHostIsoXfer *xfer; |
| 565 |
bool disconnect = false; |
| 566 |
int rc;
|
| 567 |
|
| 568 |
ring = usb_host_iso_find(s, p->ep); |
| 569 |
if (ring == NULL) { |
| 570 |
ring = usb_host_iso_alloc(s, p->ep); |
| 571 |
} |
| 572 |
|
| 573 |
/* copy data to guest */
|
| 574 |
xfer = QTAILQ_FIRST(&ring->copy); |
| 575 |
if (xfer != NULL) { |
| 576 |
if (usb_host_iso_data_copy(xfer, p)) {
|
| 577 |
QTAILQ_REMOVE(&ring->copy, xfer, next); |
| 578 |
QTAILQ_INSERT_TAIL(&ring->unused, xfer, next); |
| 579 |
} |
| 580 |
} |
| 581 |
|
| 582 |
/* submit empty bufs to host */
|
| 583 |
while ((xfer = QTAILQ_FIRST(&ring->unused)) != NULL) { |
| 584 |
QTAILQ_REMOVE(&ring->unused, xfer, next); |
| 585 |
usb_host_iso_reset_xfer(xfer); |
| 586 |
rc = libusb_submit_transfer(xfer->xfer); |
| 587 |
if (rc != 0) { |
| 588 |
usb_host_libusb_error("libusb_submit_transfer [iso]", rc);
|
| 589 |
QTAILQ_INSERT_TAIL(&ring->unused, xfer, next); |
| 590 |
if (rc == LIBUSB_ERROR_NO_DEVICE) {
|
| 591 |
disconnect = true;
|
| 592 |
} |
| 593 |
break;
|
| 594 |
} |
| 595 |
if (QTAILQ_EMPTY(&ring->inflight)) {
|
| 596 |
trace_usb_host_iso_start(s->bus_num, s->addr, p->ep->nr); |
| 597 |
} |
| 598 |
QTAILQ_INSERT_TAIL(&ring->inflight, xfer, next); |
| 599 |
} |
| 600 |
|
| 601 |
if (disconnect) {
|
| 602 |
usb_host_nodev(s); |
| 603 |
} |
| 604 |
} |
| 605 |
|
| 606 |
static void usb_host_iso_data_out(USBHostDevice *s, USBPacket *p) |
| 607 |
{
|
| 608 |
USBHostIsoRing *ring; |
| 609 |
USBHostIsoXfer *xfer; |
| 610 |
bool disconnect = false; |
| 611 |
int rc, filled = 0; |
| 612 |
|
| 613 |
ring = usb_host_iso_find(s, p->ep); |
| 614 |
if (ring == NULL) { |
| 615 |
ring = usb_host_iso_alloc(s, p->ep); |
| 616 |
} |
| 617 |
|
| 618 |
/* copy data from guest */
|
| 619 |
xfer = QTAILQ_FIRST(&ring->copy); |
| 620 |
while (xfer != NULL && xfer->copy_complete) { |
| 621 |
filled++; |
| 622 |
xfer = QTAILQ_NEXT(xfer, next); |
| 623 |
} |
| 624 |
if (xfer == NULL) { |
| 625 |
xfer = QTAILQ_FIRST(&ring->unused); |
| 626 |
if (xfer == NULL) { |
| 627 |
trace_usb_host_iso_out_of_bufs(s->bus_num, s->addr, p->ep->nr); |
| 628 |
return;
|
| 629 |
} |
| 630 |
QTAILQ_REMOVE(&ring->unused, xfer, next); |
| 631 |
usb_host_iso_reset_xfer(xfer); |
| 632 |
QTAILQ_INSERT_TAIL(&ring->copy, xfer, next); |
| 633 |
} |
| 634 |
usb_host_iso_data_copy(xfer, p); |
| 635 |
|
| 636 |
if (QTAILQ_EMPTY(&ring->inflight)) {
|
| 637 |
/* wait until half of our buffers are filled
|
| 638 |
before kicking the iso out stream */
|
| 639 |
if (filled*2 < s->iso_urb_count) { |
| 640 |
return;
|
| 641 |
} |
| 642 |
} |
| 643 |
|
| 644 |
/* submit filled bufs to host */
|
| 645 |
while ((xfer = QTAILQ_FIRST(&ring->copy)) != NULL && |
| 646 |
xfer->copy_complete) {
|
| 647 |
QTAILQ_REMOVE(&ring->copy, xfer, next); |
| 648 |
rc = libusb_submit_transfer(xfer->xfer); |
| 649 |
if (rc != 0) { |
| 650 |
usb_host_libusb_error("libusb_submit_transfer [iso]", rc);
|
| 651 |
QTAILQ_INSERT_TAIL(&ring->unused, xfer, next); |
| 652 |
if (rc == LIBUSB_ERROR_NO_DEVICE) {
|
| 653 |
disconnect = true;
|
| 654 |
} |
| 655 |
break;
|
| 656 |
} |
| 657 |
if (QTAILQ_EMPTY(&ring->inflight)) {
|
| 658 |
trace_usb_host_iso_start(s->bus_num, s->addr, p->ep->nr); |
| 659 |
} |
| 660 |
QTAILQ_INSERT_TAIL(&ring->inflight, xfer, next); |
| 661 |
} |
| 662 |
|
| 663 |
if (disconnect) {
|
| 664 |
usb_host_nodev(s); |
| 665 |
} |
| 666 |
} |
| 667 |
|
| 668 |
/* ------------------------------------------------------------------------ */
|
| 669 |
|
| 670 |
static bool usb_host_full_speed_compat(USBHostDevice *s) |
| 671 |
{
|
| 672 |
struct libusb_config_descriptor *conf;
|
| 673 |
const struct libusb_interface_descriptor *intf; |
| 674 |
const struct libusb_endpoint_descriptor *endp; |
| 675 |
uint8_t type; |
| 676 |
int rc, c, i, a, e;
|
| 677 |
|
| 678 |
for (c = 0;; c++) { |
| 679 |
rc = libusb_get_config_descriptor(s->dev, c, &conf); |
| 680 |
if (rc != 0) { |
| 681 |
break;
|
| 682 |
} |
| 683 |
for (i = 0; i < conf->bNumInterfaces; i++) { |
| 684 |
for (a = 0; a < conf->interface[i].num_altsetting; a++) { |
| 685 |
intf = &conf->interface[i].altsetting[a]; |
| 686 |
for (e = 0; e < intf->bNumEndpoints; e++) { |
| 687 |
endp = &intf->endpoint[e]; |
| 688 |
type = endp->bmAttributes & 0x3;
|
| 689 |
switch (type) {
|
| 690 |
case 0x01: /* ISO */ |
| 691 |
return false; |
| 692 |
case 0x03: /* INTERRUPT */ |
| 693 |
if (endp->wMaxPacketSize > 64) { |
| 694 |
return false; |
| 695 |
} |
| 696 |
break;
|
| 697 |
} |
| 698 |
} |
| 699 |
} |
| 700 |
} |
| 701 |
libusb_free_config_descriptor(conf); |
| 702 |
} |
| 703 |
return true; |
| 704 |
} |
| 705 |
|
| 706 |
static void usb_host_ep_update(USBHostDevice *s) |
| 707 |
{
|
| 708 |
static const char *tname[] = { |
| 709 |
[USB_ENDPOINT_XFER_CONTROL] = "control",
|
| 710 |
[USB_ENDPOINT_XFER_ISOC] = "isoc",
|
| 711 |
[USB_ENDPOINT_XFER_BULK] = "bulk",
|
| 712 |
[USB_ENDPOINT_XFER_INT] = "int",
|
| 713 |
}; |
| 714 |
USBDevice *udev = USB_DEVICE(s); |
| 715 |
struct libusb_config_descriptor *conf;
|
| 716 |
const struct libusb_interface_descriptor *intf; |
| 717 |
const struct libusb_endpoint_descriptor *endp; |
| 718 |
uint8_t devep, type; |
| 719 |
int pid, ep;
|
| 720 |
int rc, i, e;
|
| 721 |
|
| 722 |
usb_ep_reset(udev); |
| 723 |
rc = libusb_get_active_config_descriptor(s->dev, &conf); |
| 724 |
if (rc != 0) { |
| 725 |
return;
|
| 726 |
} |
| 727 |
trace_usb_host_parse_config(s->bus_num, s->addr, |
| 728 |
conf->bConfigurationValue, true);
|
| 729 |
|
| 730 |
for (i = 0; i < conf->bNumInterfaces; i++) { |
| 731 |
assert(udev->altsetting[i] < conf->interface[i].num_altsetting); |
| 732 |
intf = &conf->interface[i].altsetting[udev->altsetting[i]]; |
| 733 |
trace_usb_host_parse_interface(s->bus_num, s->addr, |
| 734 |
intf->bInterfaceNumber, |
| 735 |
intf->bAlternateSetting, true);
|
| 736 |
for (e = 0; e < intf->bNumEndpoints; e++) { |
| 737 |
endp = &intf->endpoint[e]; |
| 738 |
|
| 739 |
devep = endp->bEndpointAddress; |
| 740 |
pid = (devep & USB_DIR_IN) ? USB_TOKEN_IN : USB_TOKEN_OUT; |
| 741 |
ep = devep & 0xf;
|
| 742 |
type = endp->bmAttributes & 0x3;
|
| 743 |
|
| 744 |
if (ep == 0) { |
| 745 |
trace_usb_host_parse_error(s->bus_num, s->addr, |
| 746 |
"invalid endpoint address");
|
| 747 |
return;
|
| 748 |
} |
| 749 |
if (usb_ep_get_type(udev, pid, ep) != USB_ENDPOINT_XFER_INVALID) {
|
| 750 |
trace_usb_host_parse_error(s->bus_num, s->addr, |
| 751 |
"duplicate endpoint address");
|
| 752 |
return;
|
| 753 |
} |
| 754 |
|
| 755 |
trace_usb_host_parse_endpoint(s->bus_num, s->addr, ep, |
| 756 |
(devep & USB_DIR_IN) ? "in" : "out", |
| 757 |
tname[type], true);
|
| 758 |
usb_ep_set_max_packet_size(udev, pid, ep, |
| 759 |
endp->wMaxPacketSize); |
| 760 |
usb_ep_set_type(udev, pid, ep, type); |
| 761 |
usb_ep_set_ifnum(udev, pid, ep, i); |
| 762 |
usb_ep_set_halted(udev, pid, ep, 0);
|
| 763 |
} |
| 764 |
} |
| 765 |
|
| 766 |
libusb_free_config_descriptor(conf); |
| 767 |
} |
| 768 |
|
| 769 |
static int usb_host_open(USBHostDevice *s, libusb_device *dev) |
| 770 |
{
|
| 771 |
USBDevice *udev = USB_DEVICE(s); |
| 772 |
int bus_num = libusb_get_bus_number(dev);
|
| 773 |
int addr = libusb_get_device_address(dev);
|
| 774 |
int rc;
|
| 775 |
|
| 776 |
trace_usb_host_open_started(bus_num, addr); |
| 777 |
|
| 778 |
if (s->dh != NULL) { |
| 779 |
goto fail;
|
| 780 |
} |
| 781 |
rc = libusb_open(dev, &s->dh); |
| 782 |
if (rc != 0) { |
| 783 |
goto fail;
|
| 784 |
} |
| 785 |
|
| 786 |
libusb_get_device_descriptor(dev, &s->ddesc); |
| 787 |
s->dev = dev; |
| 788 |
s->bus_num = bus_num; |
| 789 |
s->addr = addr; |
| 790 |
usb_host_get_port(s->dev, s->port, sizeof(s->port));
|
| 791 |
|
| 792 |
usb_ep_init(udev); |
| 793 |
usb_host_ep_update(s); |
| 794 |
|
| 795 |
udev->speed = speed_map[libusb_get_device_speed(dev)]; |
| 796 |
udev->speedmask = (1 << udev->speed);
|
| 797 |
if (udev->speed == USB_SPEED_HIGH && usb_host_full_speed_compat(s)) {
|
| 798 |
udev->speedmask |= USB_SPEED_MASK_FULL; |
| 799 |
} |
| 800 |
|
| 801 |
if (s->ddesc.iProduct) {
|
| 802 |
libusb_get_string_descriptor_ascii(s->dh, s->ddesc.iProduct, |
| 803 |
(unsigned char *)udev->product_desc, |
| 804 |
sizeof(udev->product_desc));
|
| 805 |
} else {
|
| 806 |
snprintf(udev->product_desc, sizeof(udev->product_desc),
|
| 807 |
"host:%d.%d", bus_num, addr);
|
| 808 |
} |
| 809 |
|
| 810 |
rc = usb_device_attach(udev); |
| 811 |
if (rc) {
|
| 812 |
goto fail;
|
| 813 |
} |
| 814 |
|
| 815 |
trace_usb_host_open_success(bus_num, addr); |
| 816 |
return 0; |
| 817 |
|
| 818 |
fail:
|
| 819 |
trace_usb_host_open_failure(bus_num, addr); |
| 820 |
if (s->dh != NULL) { |
| 821 |
libusb_close(s->dh); |
| 822 |
s->dh = NULL;
|
| 823 |
s->dev = NULL;
|
| 824 |
} |
| 825 |
return -1; |
| 826 |
} |
| 827 |
|
| 828 |
static void usb_host_abort_xfers(USBHostDevice *s) |
| 829 |
{
|
| 830 |
USBHostRequest *r, *rtmp; |
| 831 |
|
| 832 |
QTAILQ_FOREACH_SAFE(r, &s->requests, next, rtmp) {
|
| 833 |
usb_host_req_abort(r); |
| 834 |
} |
| 835 |
} |
| 836 |
|
| 837 |
static int usb_host_close(USBHostDevice *s) |
| 838 |
{
|
| 839 |
USBDevice *udev = USB_DEVICE(s); |
| 840 |
|
| 841 |
if (s->dh == NULL) { |
| 842 |
return -1; |
| 843 |
} |
| 844 |
|
| 845 |
trace_usb_host_close(s->bus_num, s->addr); |
| 846 |
|
| 847 |
usb_host_abort_xfers(s); |
| 848 |
usb_host_iso_free_all(s); |
| 849 |
|
| 850 |
if (udev->attached) {
|
| 851 |
usb_device_detach(udev); |
| 852 |
} |
| 853 |
|
| 854 |
usb_host_release_interfaces(s); |
| 855 |
libusb_reset_device(s->dh); |
| 856 |
usb_host_attach_kernel(s); |
| 857 |
libusb_close(s->dh); |
| 858 |
s->dh = NULL;
|
| 859 |
s->dev = NULL;
|
| 860 |
|
| 861 |
usb_host_auto_check(NULL);
|
| 862 |
return 0; |
| 863 |
} |
| 864 |
|
| 865 |
static void usb_host_nodev_bh(void *opaque) |
| 866 |
{
|
| 867 |
USBHostDevice *s = opaque; |
| 868 |
usb_host_close(s); |
| 869 |
} |
| 870 |
|
| 871 |
static void usb_host_nodev(USBHostDevice *s) |
| 872 |
{
|
| 873 |
if (!s->bh_nodev) {
|
| 874 |
s->bh_nodev = qemu_bh_new(usb_host_nodev_bh, s); |
| 875 |
} |
| 876 |
qemu_bh_schedule(s->bh_nodev); |
| 877 |
} |
| 878 |
|
| 879 |
static void usb_host_exit_notifier(struct Notifier *n, void *data) |
| 880 |
{
|
| 881 |
USBHostDevice *s = container_of(n, USBHostDevice, exit); |
| 882 |
|
| 883 |
if (s->dh) {
|
| 884 |
usb_host_release_interfaces(s); |
| 885 |
usb_host_attach_kernel(s); |
| 886 |
} |
| 887 |
} |
| 888 |
|
| 889 |
static int usb_host_initfn(USBDevice *udev) |
| 890 |
{
|
| 891 |
USBHostDevice *s = USB_HOST_DEVICE(udev); |
| 892 |
|
| 893 |
loglevel = s->loglevel; |
| 894 |
udev->auto_attach = 0;
|
| 895 |
QTAILQ_INIT(&s->requests); |
| 896 |
QTAILQ_INIT(&s->isorings); |
| 897 |
|
| 898 |
s->exit.notify = usb_host_exit_notifier; |
| 899 |
qemu_add_exit_notifier(&s->exit); |
| 900 |
|
| 901 |
QTAILQ_INSERT_TAIL(&hostdevs, s, next); |
| 902 |
add_boot_device_path(s->bootindex, &udev->qdev, NULL);
|
| 903 |
usb_host_auto_check(NULL);
|
| 904 |
return 0; |
| 905 |
} |
| 906 |
|
| 907 |
static void usb_host_handle_destroy(USBDevice *udev) |
| 908 |
{
|
| 909 |
USBHostDevice *s = USB_HOST_DEVICE(udev); |
| 910 |
|
| 911 |
qemu_remove_exit_notifier(&s->exit); |
| 912 |
QTAILQ_REMOVE(&hostdevs, s, next); |
| 913 |
usb_host_close(s); |
| 914 |
} |
| 915 |
|
| 916 |
static void usb_host_cancel_packet(USBDevice *udev, USBPacket *p) |
| 917 |
{
|
| 918 |
USBHostDevice *s = USB_HOST_DEVICE(udev); |
| 919 |
USBHostRequest *r; |
| 920 |
|
| 921 |
if (p->combined) {
|
| 922 |
usb_combined_packet_cancel(udev, p); |
| 923 |
return;
|
| 924 |
} |
| 925 |
|
| 926 |
trace_usb_host_req_canceled(s->bus_num, s->addr, p); |
| 927 |
|
| 928 |
r = usb_host_req_find(s, p); |
| 929 |
if (r && r->p) {
|
| 930 |
r->p = NULL; /* mark as dead */ |
| 931 |
libusb_cancel_transfer(r->xfer); |
| 932 |
} |
| 933 |
} |
| 934 |
|
| 935 |
static void usb_host_detach_kernel(USBHostDevice *s) |
| 936 |
{
|
| 937 |
struct libusb_config_descriptor *conf;
|
| 938 |
int rc, i;
|
| 939 |
|
| 940 |
rc = libusb_get_active_config_descriptor(s->dev, &conf); |
| 941 |
if (rc != 0) { |
| 942 |
return;
|
| 943 |
} |
| 944 |
for (i = 0; i < conf->bNumInterfaces; i++) { |
| 945 |
rc = libusb_kernel_driver_active(s->dh, i); |
| 946 |
usb_host_libusb_error("libusb_kernel_driver_active", rc);
|
| 947 |
if (rc != 1) { |
| 948 |
continue;
|
| 949 |
} |
| 950 |
trace_usb_host_detach_kernel(s->bus_num, s->addr, i); |
| 951 |
rc = libusb_detach_kernel_driver(s->dh, i); |
| 952 |
usb_host_libusb_error("libusb_detach_kernel_driver", rc);
|
| 953 |
s->ifs[i].detached = true;
|
| 954 |
} |
| 955 |
libusb_free_config_descriptor(conf); |
| 956 |
} |
| 957 |
|
| 958 |
static void usb_host_attach_kernel(USBHostDevice *s) |
| 959 |
{
|
| 960 |
struct libusb_config_descriptor *conf;
|
| 961 |
int rc, i;
|
| 962 |
|
| 963 |
rc = libusb_get_active_config_descriptor(s->dev, &conf); |
| 964 |
if (rc != 0) { |
| 965 |
return;
|
| 966 |
} |
| 967 |
for (i = 0; i < conf->bNumInterfaces; i++) { |
| 968 |
if (!s->ifs[i].detached) {
|
| 969 |
continue;
|
| 970 |
} |
| 971 |
trace_usb_host_attach_kernel(s->bus_num, s->addr, i); |
| 972 |
libusb_attach_kernel_driver(s->dh, i); |
| 973 |
s->ifs[i].detached = false;
|
| 974 |
} |
| 975 |
libusb_free_config_descriptor(conf); |
| 976 |
} |
| 977 |
|
| 978 |
static int usb_host_claim_interfaces(USBHostDevice *s, int configuration) |
| 979 |
{
|
| 980 |
USBDevice *udev = USB_DEVICE(s); |
| 981 |
struct libusb_config_descriptor *conf;
|
| 982 |
int rc, i;
|
| 983 |
|
| 984 |
for (i = 0; i < USB_MAX_INTERFACES; i++) { |
| 985 |
udev->altsetting[i] = 0;
|
| 986 |
} |
| 987 |
udev->ninterfaces = 0;
|
| 988 |
udev->configuration = 0;
|
| 989 |
|
| 990 |
if (configuration == 0) { |
| 991 |
/* address state - ignore */
|
| 992 |
return USB_RET_SUCCESS;
|
| 993 |
} |
| 994 |
|
| 995 |
usb_host_detach_kernel(s); |
| 996 |
|
| 997 |
rc = libusb_get_active_config_descriptor(s->dev, &conf); |
| 998 |
if (rc != 0) { |
| 999 |
return USB_RET_STALL;
|
| 1000 |
} |
| 1001 |
|
| 1002 |
for (i = 0; i < conf->bNumInterfaces; i++) { |
| 1003 |
trace_usb_host_claim_interface(s->bus_num, s->addr, configuration, i); |
| 1004 |
rc = libusb_claim_interface(s->dh, i); |
| 1005 |
usb_host_libusb_error("libusb_claim_interface", rc);
|
| 1006 |
if (rc != 0) { |
| 1007 |
return USB_RET_STALL;
|
| 1008 |
} |
| 1009 |
s->ifs[i].claimed = true;
|
| 1010 |
} |
| 1011 |
|
| 1012 |
udev->ninterfaces = conf->bNumInterfaces; |
| 1013 |
udev->configuration = configuration; |
| 1014 |
|
| 1015 |
libusb_free_config_descriptor(conf); |
| 1016 |
return USB_RET_SUCCESS;
|
| 1017 |
} |
| 1018 |
|
| 1019 |
static void usb_host_release_interfaces(USBHostDevice *s) |
| 1020 |
{
|
| 1021 |
USBDevice *udev = USB_DEVICE(s); |
| 1022 |
int i, rc;
|
| 1023 |
|
| 1024 |
for (i = 0; i < udev->ninterfaces; i++) { |
| 1025 |
if (!s->ifs[i].claimed) {
|
| 1026 |
continue;
|
| 1027 |
} |
| 1028 |
trace_usb_host_release_interface(s->bus_num, s->addr, i); |
| 1029 |
rc = libusb_release_interface(s->dh, i); |
| 1030 |
usb_host_libusb_error("libusb_release_interface", rc);
|
| 1031 |
s->ifs[i].claimed = false;
|
| 1032 |
} |
| 1033 |
} |
| 1034 |
|
| 1035 |
static void usb_host_set_address(USBHostDevice *s, int addr) |
| 1036 |
{
|
| 1037 |
USBDevice *udev = USB_DEVICE(s); |
| 1038 |
|
| 1039 |
trace_usb_host_set_address(s->bus_num, s->addr, addr); |
| 1040 |
udev->addr = addr; |
| 1041 |
} |
| 1042 |
|
| 1043 |
static void usb_host_set_config(USBHostDevice *s, int config, USBPacket *p) |
| 1044 |
{
|
| 1045 |
int rc;
|
| 1046 |
|
| 1047 |
trace_usb_host_set_config(s->bus_num, s->addr, config); |
| 1048 |
|
| 1049 |
usb_host_release_interfaces(s); |
| 1050 |
usb_host_detach_kernel(s); |
| 1051 |
rc = libusb_set_configuration(s->dh, config); |
| 1052 |
if (rc != 0) { |
| 1053 |
usb_host_libusb_error("libusb_set_configuration", rc);
|
| 1054 |
p->status = USB_RET_STALL; |
| 1055 |
if (rc == LIBUSB_ERROR_NO_DEVICE) {
|
| 1056 |
usb_host_nodev(s); |
| 1057 |
} |
| 1058 |
return;
|
| 1059 |
} |
| 1060 |
p->status = usb_host_claim_interfaces(s, config); |
| 1061 |
if (p->status != USB_RET_SUCCESS) {
|
| 1062 |
return;
|
| 1063 |
} |
| 1064 |
usb_host_ep_update(s); |
| 1065 |
} |
| 1066 |
|
| 1067 |
static void usb_host_set_interface(USBHostDevice *s, int iface, int alt, |
| 1068 |
USBPacket *p) |
| 1069 |
{
|
| 1070 |
USBDevice *udev = USB_DEVICE(s); |
| 1071 |
int rc;
|
| 1072 |
|
| 1073 |
trace_usb_host_set_interface(s->bus_num, s->addr, iface, alt); |
| 1074 |
|
| 1075 |
usb_host_iso_free_all(s); |
| 1076 |
|
| 1077 |
if (iface >= USB_MAX_INTERFACES) {
|
| 1078 |
p->status = USB_RET_STALL; |
| 1079 |
return;
|
| 1080 |
} |
| 1081 |
|
| 1082 |
rc = libusb_set_interface_alt_setting(s->dh, iface, alt); |
| 1083 |
if (rc != 0) { |
| 1084 |
usb_host_libusb_error("libusb_set_interface_alt_setting", rc);
|
| 1085 |
p->status = USB_RET_STALL; |
| 1086 |
if (rc == LIBUSB_ERROR_NO_DEVICE) {
|
| 1087 |
usb_host_nodev(s); |
| 1088 |
} |
| 1089 |
return;
|
| 1090 |
} |
| 1091 |
|
| 1092 |
udev->altsetting[iface] = alt; |
| 1093 |
usb_host_ep_update(s); |
| 1094 |
} |
| 1095 |
|
| 1096 |
static void usb_host_handle_control(USBDevice *udev, USBPacket *p, |
| 1097 |
int request, int value, int index, |
| 1098 |
int length, uint8_t *data)
|
| 1099 |
{
|
| 1100 |
USBHostDevice *s = USB_HOST_DEVICE(udev); |
| 1101 |
USBHostRequest *r; |
| 1102 |
int rc;
|
| 1103 |
|
| 1104 |
trace_usb_host_req_control(s->bus_num, s->addr, p, request, value, index); |
| 1105 |
|
| 1106 |
if (s->dh == NULL) { |
| 1107 |
p->status = USB_RET_NODEV; |
| 1108 |
trace_usb_host_req_emulated(s->bus_num, s->addr, p, p->status); |
| 1109 |
return;
|
| 1110 |
} |
| 1111 |
|
| 1112 |
switch (request) {
|
| 1113 |
case DeviceOutRequest | USB_REQ_SET_ADDRESS:
|
| 1114 |
usb_host_set_address(s, value); |
| 1115 |
trace_usb_host_req_emulated(s->bus_num, s->addr, p, p->status); |
| 1116 |
return;
|
| 1117 |
|
| 1118 |
case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:
|
| 1119 |
usb_host_set_config(s, value & 0xff, p);
|
| 1120 |
trace_usb_host_req_emulated(s->bus_num, s->addr, p, p->status); |
| 1121 |
return;
|
| 1122 |
|
| 1123 |
case InterfaceOutRequest | USB_REQ_SET_INTERFACE:
|
| 1124 |
usb_host_set_interface(s, index, value, p); |
| 1125 |
trace_usb_host_req_emulated(s->bus_num, s->addr, p, p->status); |
| 1126 |
return;
|
| 1127 |
|
| 1128 |
case EndpointOutRequest | USB_REQ_CLEAR_FEATURE:
|
| 1129 |
if (value == 0) { /* clear halt */ |
| 1130 |
int pid = (index & USB_DIR_IN) ? USB_TOKEN_IN : USB_TOKEN_OUT;
|
| 1131 |
libusb_clear_halt(s->dh, index); |
| 1132 |
usb_ep_set_halted(udev, pid, index & 0x0f, 0); |
| 1133 |
trace_usb_host_req_emulated(s->bus_num, s->addr, p, p->status); |
| 1134 |
return;
|
| 1135 |
} |
| 1136 |
} |
| 1137 |
|
| 1138 |
r = usb_host_req_alloc(s, p, (request >> 8) & USB_DIR_IN, length + 8); |
| 1139 |
r->cbuf = data; |
| 1140 |
r->clen = length; |
| 1141 |
memcpy(r->buffer, udev->setup_buf, 8);
|
| 1142 |
if (!r->in) {
|
| 1143 |
memcpy(r->buffer + 8, r->cbuf, r->clen);
|
| 1144 |
} |
| 1145 |
|
| 1146 |
libusb_fill_control_transfer(r->xfer, s->dh, r->buffer, |
| 1147 |
usb_host_req_complete_ctrl, r, |
| 1148 |
CONTROL_TIMEOUT); |
| 1149 |
rc = libusb_submit_transfer(r->xfer); |
| 1150 |
if (rc != 0) { |
| 1151 |
p->status = USB_RET_NODEV; |
| 1152 |
trace_usb_host_req_complete(s->bus_num, s->addr, p, |
| 1153 |
p->status, p->actual_length); |
| 1154 |
if (rc == LIBUSB_ERROR_NO_DEVICE) {
|
| 1155 |
usb_host_nodev(s); |
| 1156 |
} |
| 1157 |
return;
|
| 1158 |
} |
| 1159 |
|
| 1160 |
p->status = USB_RET_ASYNC; |
| 1161 |
} |
| 1162 |
|
| 1163 |
static void usb_host_handle_data(USBDevice *udev, USBPacket *p) |
| 1164 |
{
|
| 1165 |
USBHostDevice *s = USB_HOST_DEVICE(udev); |
| 1166 |
USBHostRequest *r; |
| 1167 |
size_t size; |
| 1168 |
int ep, rc;
|
| 1169 |
|
| 1170 |
if (usb_host_use_combining(p->ep) && p->state == USB_PACKET_SETUP) {
|
| 1171 |
p->status = USB_RET_ADD_TO_QUEUE; |
| 1172 |
return;
|
| 1173 |
} |
| 1174 |
|
| 1175 |
trace_usb_host_req_data(s->bus_num, s->addr, p, |
| 1176 |
p->pid == USB_TOKEN_IN, |
| 1177 |
p->ep->nr, p->iov.size); |
| 1178 |
|
| 1179 |
if (s->dh == NULL) { |
| 1180 |
p->status = USB_RET_NODEV; |
| 1181 |
trace_usb_host_req_emulated(s->bus_num, s->addr, p, p->status); |
| 1182 |
return;
|
| 1183 |
} |
| 1184 |
if (p->ep->halted) {
|
| 1185 |
p->status = USB_RET_STALL; |
| 1186 |
trace_usb_host_req_emulated(s->bus_num, s->addr, p, p->status); |
| 1187 |
return;
|
| 1188 |
} |
| 1189 |
|
| 1190 |
switch (usb_ep_get_type(udev, p->pid, p->ep->nr)) {
|
| 1191 |
case USB_ENDPOINT_XFER_BULK:
|
| 1192 |
size = usb_packet_size(p); |
| 1193 |
r = usb_host_req_alloc(s, p, p->pid == USB_TOKEN_IN, size); |
| 1194 |
if (!r->in) {
|
| 1195 |
usb_packet_copy(p, r->buffer, size); |
| 1196 |
} |
| 1197 |
ep = p->ep->nr | (r->in ? USB_DIR_IN : 0);
|
| 1198 |
libusb_fill_bulk_transfer(r->xfer, s->dh, ep, |
| 1199 |
r->buffer, size, |
| 1200 |
usb_host_req_complete_data, r, |
| 1201 |
BULK_TIMEOUT); |
| 1202 |
break;
|
| 1203 |
case USB_ENDPOINT_XFER_INT:
|
| 1204 |
r = usb_host_req_alloc(s, p, p->pid == USB_TOKEN_IN, p->iov.size); |
| 1205 |
if (!r->in) {
|
| 1206 |
usb_packet_copy(p, r->buffer, p->iov.size); |
| 1207 |
} |
| 1208 |
ep = p->ep->nr | (r->in ? USB_DIR_IN : 0);
|
| 1209 |
libusb_fill_interrupt_transfer(r->xfer, s->dh, ep, |
| 1210 |
r->buffer, p->iov.size, |
| 1211 |
usb_host_req_complete_data, r, |
| 1212 |
INTR_TIMEOUT); |
| 1213 |
break;
|
| 1214 |
case USB_ENDPOINT_XFER_ISOC:
|
| 1215 |
if (p->pid == USB_TOKEN_IN) {
|
| 1216 |
usb_host_iso_data_in(s, p); |
| 1217 |
} else {
|
| 1218 |
usb_host_iso_data_out(s, p); |
| 1219 |
} |
| 1220 |
trace_usb_host_req_complete(s->bus_num, s->addr, p, |
| 1221 |
p->status, p->actual_length); |
| 1222 |
return;
|
| 1223 |
default:
|
| 1224 |
p->status = USB_RET_STALL; |
| 1225 |
trace_usb_host_req_complete(s->bus_num, s->addr, p, |
| 1226 |
p->status, p->actual_length); |
| 1227 |
return;
|
| 1228 |
} |
| 1229 |
|
| 1230 |
rc = libusb_submit_transfer(r->xfer); |
| 1231 |
if (rc != 0) { |
| 1232 |
p->status = USB_RET_NODEV; |
| 1233 |
trace_usb_host_req_complete(s->bus_num, s->addr, p, |
| 1234 |
p->status, p->actual_length); |
| 1235 |
if (rc == LIBUSB_ERROR_NO_DEVICE) {
|
| 1236 |
usb_host_nodev(s); |
| 1237 |
} |
| 1238 |
return;
|
| 1239 |
} |
| 1240 |
|
| 1241 |
p->status = USB_RET_ASYNC; |
| 1242 |
} |
| 1243 |
|
| 1244 |
static void usb_host_flush_ep_queue(USBDevice *dev, USBEndpoint *ep) |
| 1245 |
{
|
| 1246 |
if (usb_host_use_combining(ep)) {
|
| 1247 |
usb_ep_combine_input_packets(ep); |
| 1248 |
} |
| 1249 |
} |
| 1250 |
|
| 1251 |
static void usb_host_handle_reset(USBDevice *udev) |
| 1252 |
{
|
| 1253 |
USBHostDevice *s = USB_HOST_DEVICE(udev); |
| 1254 |
|
| 1255 |
trace_usb_host_reset(s->bus_num, s->addr); |
| 1256 |
|
| 1257 |
if (udev->configuration == 0) { |
| 1258 |
return;
|
| 1259 |
} |
| 1260 |
usb_host_release_interfaces(s); |
| 1261 |
libusb_reset_device(s->dh); |
| 1262 |
usb_host_claim_interfaces(s, 0);
|
| 1263 |
usb_host_ep_update(s); |
| 1264 |
} |
| 1265 |
|
| 1266 |
/*
|
| 1267 |
* This is *NOT* about restoring state. We have absolutely no idea
|
| 1268 |
* what state the host device is in at the moment and whenever it is
|
| 1269 |
* still present in the first place. Attemping to contine where we
|
| 1270 |
* left off is impossible.
|
| 1271 |
*
|
| 1272 |
* What we are going to to to here is emulate a surprise removal of
|
| 1273 |
* the usb device passed through, then kick host scan so the device
|
| 1274 |
* will get re-attached (and re-initialized by the guest) in case it
|
| 1275 |
* is still present.
|
| 1276 |
*
|
| 1277 |
* As the device removal will change the state of other devices (usb
|
| 1278 |
* host controller, most likely interrupt controller too) we have to
|
| 1279 |
* wait with it until *all* vmstate is loaded. Thus post_load just
|
| 1280 |
* kicks a bottom half which then does the actual work.
|
| 1281 |
*/
|
| 1282 |
static void usb_host_post_load_bh(void *opaque) |
| 1283 |
{
|
| 1284 |
USBHostDevice *dev = opaque; |
| 1285 |
USBDevice *udev = USB_DEVICE(dev); |
| 1286 |
|
| 1287 |
if (dev->dh != NULL) { |
| 1288 |
usb_host_close(dev); |
| 1289 |
} |
| 1290 |
if (udev->attached) {
|
| 1291 |
usb_device_detach(udev); |
| 1292 |
} |
| 1293 |
usb_host_auto_check(NULL);
|
| 1294 |
} |
| 1295 |
|
| 1296 |
static int usb_host_post_load(void *opaque, int version_id) |
| 1297 |
{
|
| 1298 |
USBHostDevice *dev = opaque; |
| 1299 |
|
| 1300 |
if (!dev->bh_postld) {
|
| 1301 |
dev->bh_postld = qemu_bh_new(usb_host_post_load_bh, dev); |
| 1302 |
} |
| 1303 |
qemu_bh_schedule(dev->bh_postld); |
| 1304 |
return 0; |
| 1305 |
} |
| 1306 |
|
| 1307 |
static const VMStateDescription vmstate_usb_host = { |
| 1308 |
.name = "usb-host",
|
| 1309 |
.version_id = 1,
|
| 1310 |
.minimum_version_id = 1,
|
| 1311 |
.post_load = usb_host_post_load, |
| 1312 |
.fields = (VMStateField[]) {
|
| 1313 |
VMSTATE_USB_DEVICE(parent_obj, USBHostDevice), |
| 1314 |
VMSTATE_END_OF_LIST() |
| 1315 |
} |
| 1316 |
}; |
| 1317 |
|
| 1318 |
static Property usb_host_dev_properties[] = {
|
| 1319 |
DEFINE_PROP_UINT32("hostbus", USBHostDevice, match.bus_num, 0), |
| 1320 |
DEFINE_PROP_UINT32("hostaddr", USBHostDevice, match.addr, 0), |
| 1321 |
DEFINE_PROP_STRING("hostport", USBHostDevice, match.port),
|
| 1322 |
DEFINE_PROP_HEX32("vendorid", USBHostDevice, match.vendor_id, 0), |
| 1323 |
DEFINE_PROP_HEX32("productid", USBHostDevice, match.product_id, 0), |
| 1324 |
DEFINE_PROP_UINT32("isobufs", USBHostDevice, iso_urb_count, 4), |
| 1325 |
DEFINE_PROP_UINT32("isobsize", USBHostDevice, iso_urb_frames, 32), |
| 1326 |
DEFINE_PROP_INT32("bootindex", USBHostDevice, bootindex, -1), |
| 1327 |
DEFINE_PROP_UINT32("loglevel", USBHostDevice, loglevel,
|
| 1328 |
LIBUSB_LOG_LEVEL_WARNING), |
| 1329 |
DEFINE_PROP_BIT("pipeline", USBHostDevice, options,
|
| 1330 |
USB_HOST_OPT_PIPELINE, true),
|
| 1331 |
DEFINE_PROP_END_OF_LIST(), |
| 1332 |
}; |
| 1333 |
|
| 1334 |
static void usb_host_class_initfn(ObjectClass *klass, void *data) |
| 1335 |
{
|
| 1336 |
DeviceClass *dc = DEVICE_CLASS(klass); |
| 1337 |
USBDeviceClass *uc = USB_DEVICE_CLASS(klass); |
| 1338 |
|
| 1339 |
uc->init = usb_host_initfn; |
| 1340 |
uc->product_desc = "USB Host Device";
|
| 1341 |
uc->cancel_packet = usb_host_cancel_packet; |
| 1342 |
uc->handle_data = usb_host_handle_data; |
| 1343 |
uc->handle_control = usb_host_handle_control; |
| 1344 |
uc->handle_reset = usb_host_handle_reset; |
| 1345 |
uc->handle_destroy = usb_host_handle_destroy; |
| 1346 |
uc->flush_ep_queue = usb_host_flush_ep_queue; |
| 1347 |
dc->vmsd = &vmstate_usb_host; |
| 1348 |
dc->props = usb_host_dev_properties; |
| 1349 |
} |
| 1350 |
|
| 1351 |
static TypeInfo usb_host_dev_info = {
|
| 1352 |
.name = TYPE_USB_HOST_DEVICE, |
| 1353 |
.parent = TYPE_USB_DEVICE, |
| 1354 |
.instance_size = sizeof(USBHostDevice),
|
| 1355 |
.class_init = usb_host_class_initfn, |
| 1356 |
}; |
| 1357 |
|
| 1358 |
static void usb_host_register_types(void) |
| 1359 |
{
|
| 1360 |
type_register_static(&usb_host_dev_info); |
| 1361 |
} |
| 1362 |
|
| 1363 |
type_init(usb_host_register_types) |
| 1364 |
|
| 1365 |
/* ------------------------------------------------------------------------ */
|
| 1366 |
|
| 1367 |
static QEMUTimer *usb_auto_timer;
|
| 1368 |
static VMChangeStateEntry *usb_vmstate;
|
| 1369 |
|
| 1370 |
static void usb_host_vm_state(void *unused, int running, RunState state) |
| 1371 |
{
|
| 1372 |
if (running) {
|
| 1373 |
usb_host_auto_check(unused); |
| 1374 |
} |
| 1375 |
} |
| 1376 |
|
| 1377 |
static void usb_host_auto_check(void *unused) |
| 1378 |
{
|
| 1379 |
struct USBHostDevice *s;
|
| 1380 |
struct USBAutoFilter *f;
|
| 1381 |
libusb_device **devs; |
| 1382 |
struct libusb_device_descriptor ddesc;
|
| 1383 |
int unconnected = 0; |
| 1384 |
int i, n;
|
| 1385 |
|
| 1386 |
if (usb_host_init() != 0) { |
| 1387 |
return;
|
| 1388 |
} |
| 1389 |
|
| 1390 |
if (runstate_is_running()) {
|
| 1391 |
n = libusb_get_device_list(ctx, &devs); |
| 1392 |
for (i = 0; i < n; i++) { |
| 1393 |
if (libusb_get_device_descriptor(devs[i], &ddesc) != 0) { |
| 1394 |
continue;
|
| 1395 |
} |
| 1396 |
if (ddesc.bDeviceClass == LIBUSB_CLASS_HUB) {
|
| 1397 |
continue;
|
| 1398 |
} |
| 1399 |
QTAILQ_FOREACH(s, &hostdevs, next) {
|
| 1400 |
f = &s->match; |
| 1401 |
if (f->bus_num > 0 && |
| 1402 |
f->bus_num != libusb_get_bus_number(devs[i])) {
|
| 1403 |
continue;
|
| 1404 |
} |
| 1405 |
if (f->addr > 0 && |
| 1406 |
f->addr != libusb_get_device_address(devs[i])) {
|
| 1407 |
continue;
|
| 1408 |
} |
| 1409 |
if (f->port != NULL) { |
| 1410 |
char port[16] = "-"; |
| 1411 |
usb_host_get_port(devs[i], port, sizeof(port));
|
| 1412 |
if (strcmp(f->port, port) != 0) { |
| 1413 |
continue;
|
| 1414 |
} |
| 1415 |
} |
| 1416 |
if (f->vendor_id > 0 && |
| 1417 |
f->vendor_id != ddesc.idVendor) {
|
| 1418 |
continue;
|
| 1419 |
} |
| 1420 |
if (f->product_id > 0 && |
| 1421 |
f->product_id != ddesc.idProduct) {
|
| 1422 |
continue;
|
| 1423 |
} |
| 1424 |
|
| 1425 |
/* We got a match */
|
| 1426 |
s->seen++; |
| 1427 |
if (s->errcount >= 3) { |
| 1428 |
continue;
|
| 1429 |
} |
| 1430 |
if (s->dh != NULL) { |
| 1431 |
continue;
|
| 1432 |
} |
| 1433 |
if (usb_host_open(s, devs[i]) < 0) { |
| 1434 |
s->errcount++; |
| 1435 |
continue;
|
| 1436 |
} |
| 1437 |
break;
|
| 1438 |
} |
| 1439 |
} |
| 1440 |
libusb_free_device_list(devs, 1);
|
| 1441 |
|
| 1442 |
QTAILQ_FOREACH(s, &hostdevs, next) {
|
| 1443 |
if (s->dh == NULL) { |
| 1444 |
unconnected++; |
| 1445 |
} |
| 1446 |
if (s->seen == 0) { |
| 1447 |
if (s->dh) {
|
| 1448 |
usb_host_close(s); |
| 1449 |
} |
| 1450 |
s->errcount = 0;
|
| 1451 |
} |
| 1452 |
s->seen = 0;
|
| 1453 |
} |
| 1454 |
|
| 1455 |
#if 0
|
| 1456 |
if (unconnected == 0) {
|
| 1457 |
/* nothing to watch */
|
| 1458 |
if (usb_auto_timer) {
|
| 1459 |
qemu_del_timer(usb_auto_timer);
|
| 1460 |
trace_usb_host_auto_scan_disabled();
|
| 1461 |
}
|
| 1462 |
return;
|
| 1463 |
}
|
| 1464 |
#endif
|
| 1465 |
} |
| 1466 |
|
| 1467 |
if (!usb_vmstate) {
|
| 1468 |
usb_vmstate = qemu_add_vm_change_state_handler(usb_host_vm_state, NULL);
|
| 1469 |
} |
| 1470 |
if (!usb_auto_timer) {
|
| 1471 |
usb_auto_timer = qemu_new_timer_ms(rt_clock, usb_host_auto_check, NULL);
|
| 1472 |
if (!usb_auto_timer) {
|
| 1473 |
return;
|
| 1474 |
} |
| 1475 |
trace_usb_host_auto_scan_enabled(); |
| 1476 |
} |
| 1477 |
qemu_mod_timer(usb_auto_timer, qemu_get_clock_ms(rt_clock) + 2000);
|
| 1478 |
} |
| 1479 |
|
| 1480 |
void usb_host_info(Monitor *mon, const QDict *qdict) |
| 1481 |
{
|
| 1482 |
libusb_device **devs; |
| 1483 |
struct libusb_device_descriptor ddesc;
|
| 1484 |
char port[16]; |
| 1485 |
int i, n;
|
| 1486 |
|
| 1487 |
if (usb_host_init() != 0) { |
| 1488 |
return;
|
| 1489 |
} |
| 1490 |
|
| 1491 |
n = libusb_get_device_list(ctx, &devs); |
| 1492 |
for (i = 0; i < n; i++) { |
| 1493 |
if (libusb_get_device_descriptor(devs[i], &ddesc) != 0) { |
| 1494 |
continue;
|
| 1495 |
} |
| 1496 |
if (ddesc.bDeviceClass == LIBUSB_CLASS_HUB) {
|
| 1497 |
continue;
|
| 1498 |
} |
| 1499 |
usb_host_get_port(devs[i], port, sizeof(port));
|
| 1500 |
monitor_printf(mon, " Bus %d, Addr %d, Port %s, Speed %s Mb/s\n",
|
| 1501 |
libusb_get_bus_number(devs[i]), |
| 1502 |
libusb_get_device_address(devs[i]), |
| 1503 |
port, |
| 1504 |
speed_name[libusb_get_device_speed(devs[i])]); |
| 1505 |
monitor_printf(mon, " Class %02x:", ddesc.bDeviceClass);
|
| 1506 |
monitor_printf(mon, " USB device %04x:%04x",
|
| 1507 |
ddesc.idVendor, ddesc.idProduct); |
| 1508 |
if (ddesc.iProduct) {
|
| 1509 |
libusb_device_handle *handle; |
| 1510 |
if (libusb_open(devs[i], &handle) == 0) { |
| 1511 |
unsigned char name[64] = ""; |
| 1512 |
libusb_get_string_descriptor_ascii(handle, |
| 1513 |
ddesc.iProduct, |
| 1514 |
name, sizeof(name));
|
| 1515 |
libusb_close(handle); |
| 1516 |
monitor_printf(mon, ", %s", name);
|
| 1517 |
} |
| 1518 |
} |
| 1519 |
monitor_printf(mon, "\n");
|
| 1520 |
} |
| 1521 |
libusb_free_device_list(devs, 1);
|
| 1522 |
} |