Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
1604 lines
47 KiB
C
1604 lines
47 KiB
C
/*
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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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#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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#include "hw/usb.h"
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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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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;
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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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enum USBHostDeviceOptions {
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USB_HOST_OPT_PIPELINE,
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};
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struct USBHostDevice {
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USBDevice parent_obj;
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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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/* 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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libusb_device *dev;
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libusb_device_handle *dh;
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struct libusb_device_descriptor ddesc;
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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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/* 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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/* 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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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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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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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_detach_kernel(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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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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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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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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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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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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#if LIBUSBX_API_VERSION >= 0x01000102
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rc = libusb_get_port_numbers(dev, path, 7);
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#else
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rc = libusb_get_port_path(ctx, dev, path, 7);
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#endif
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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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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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if (rc >= 0) {
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return;
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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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static bool usb_host_use_combining(USBEndpoint *ep)
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{
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int type;
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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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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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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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}
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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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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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static void usb_host_req_complete_ctrl(struct libusb_transfer *xfer)
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{
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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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if (r->p == NULL) {
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goto out; /* request was canceled */
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}
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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) {
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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);
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out:
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usb_host_req_free(r);
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if (disconnect) {
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usb_host_nodev(s);
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}
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}
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static void usb_host_req_complete_data(struct libusb_transfer *xfer)
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{
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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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if (r->p == NULL) {
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goto out; /* request was canceled */
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}
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r->p->status = status_map[xfer->status];
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if (r->in && xfer->actual_length) {
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usb_packet_copy(r->p, r->buffer, 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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if (usb_host_use_combining(r->p->ep)) {
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usb_combined_input_packet_complete(USB_DEVICE(s), r->p);
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} else {
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usb_packet_complete(USB_DEVICE(s), r->p);
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}
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out:
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usb_host_req_free(r);
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if (disconnect) {
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usb_host_nodev(s);
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}
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}
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static void usb_host_req_abort(USBHostRequest *r)
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{
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USBHostDevice *s = r->host;
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bool inflight = (r->p && r->p->state == USB_PACKET_ASYNC);
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if (inflight) {
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r->p->status = USB_RET_NODEV;
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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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if (r->p->ep->nr == 0) {
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usb_generic_async_ctrl_complete(USB_DEVICE(s), r->p);
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} else {
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usb_packet_complete(USB_DEVICE(s), r->p);
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}
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r->p = NULL;
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}
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QTAILQ_REMOVE(&r->host->requests, r, next);
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r->host = NULL;
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if (inflight) {
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libusb_cancel_transfer(r->xfer);
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}
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}
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/* ------------------------------------------------------------------------ */
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static void usb_host_req_complete_iso(struct libusb_transfer *transfer)
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{
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USBHostIsoXfer *xfer = transfer->user_data;
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if (!xfer) {
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/* USBHostIsoXfer released while inflight */
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g_free(transfer->buffer);
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libusb_free_transfer(transfer);
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return;
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}
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QTAILQ_REMOVE(&xfer->ring->inflight, xfer, next);
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if (QTAILQ_EMPTY(&xfer->ring->inflight)) {
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USBHostDevice *s = xfer->ring->host;
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trace_usb_host_iso_stop(s->bus_num, s->addr, xfer->ring->ep->nr);
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}
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if (xfer->ring->ep->pid == USB_TOKEN_IN) {
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QTAILQ_INSERT_TAIL(&xfer->ring->copy, xfer, next);
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} else {
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QTAILQ_INSERT_TAIL(&xfer->ring->unused, xfer, next);
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}
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}
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|
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static USBHostIsoRing *usb_host_iso_alloc(USBHostDevice *s, USBEndpoint *ep)
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{
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USBHostIsoRing *ring = g_new0(USBHostIsoRing, 1);
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USBHostIsoXfer *xfer;
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/* FIXME: check interval (for now assume one xfer per frame) */
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int packets = s->iso_urb_frames;
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int i;
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|
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ring->host = s;
|
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ring->ep = ep;
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QTAILQ_INIT(&ring->unused);
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QTAILQ_INIT(&ring->inflight);
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QTAILQ_INIT(&ring->copy);
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QTAILQ_INSERT_TAIL(&s->isorings, ring, next);
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for (i = 0; i < s->iso_urb_count; i++) {
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xfer = g_new0(USBHostIsoXfer, 1);
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xfer->ring = ring;
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xfer->xfer = libusb_alloc_transfer(packets);
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xfer->xfer->dev_handle = s->dh;
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xfer->xfer->type = LIBUSB_TRANSFER_TYPE_ISOCHRONOUS;
|
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|
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xfer->xfer->endpoint = ring->ep->nr;
|
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if (ring->ep->pid == USB_TOKEN_IN) {
|
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xfer->xfer->endpoint |= USB_DIR_IN;
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}
|
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xfer->xfer->callback = usb_host_req_complete_iso;
|
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xfer->xfer->user_data = xfer;
|
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|
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xfer->xfer->num_iso_packets = packets;
|
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xfer->xfer->length = ring->ep->max_packet_size * packets;
|
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xfer->xfer->buffer = g_malloc0(xfer->xfer->length);
|
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|
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QTAILQ_INSERT_TAIL(&ring->unused, xfer, next);
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}
|
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|
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return ring;
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}
|
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|
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static USBHostIsoRing *usb_host_iso_find(USBHostDevice *s, USBEndpoint *ep)
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{
|
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USBHostIsoRing *ring;
|
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|
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QTAILQ_FOREACH(ring, &s->isorings, next) {
|
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if (ring->ep == ep) {
|
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return ring;
|
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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_iso_reset_xfer(USBHostIsoXfer *xfer)
|
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{
|
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libusb_set_iso_packet_lengths(xfer->xfer,
|
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xfer->ring->ep->max_packet_size);
|
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xfer->packet = 0;
|
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xfer->copy_complete = false;
|
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}
|
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|
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static void usb_host_iso_free_xfer(USBHostIsoXfer *xfer, bool inflight)
|
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{
|
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if (inflight) {
|
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xfer->xfer->user_data = NULL;
|
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} else {
|
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g_free(xfer->xfer->buffer);
|
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libusb_free_transfer(xfer->xfer);
|
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}
|
|
g_free(xfer);
|
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}
|
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|
|
static void usb_host_iso_free(USBHostIsoRing *ring)
|
|
{
|
|
USBHostIsoXfer *xfer;
|
|
|
|
while ((xfer = QTAILQ_FIRST(&ring->inflight)) != NULL) {
|
|
QTAILQ_REMOVE(&ring->inflight, xfer, next);
|
|
usb_host_iso_free_xfer(xfer, true);
|
|
}
|
|
while ((xfer = QTAILQ_FIRST(&ring->unused)) != NULL) {
|
|
QTAILQ_REMOVE(&ring->unused, xfer, next);
|
|
usb_host_iso_free_xfer(xfer, false);
|
|
}
|
|
while ((xfer = QTAILQ_FIRST(&ring->copy)) != NULL) {
|
|
QTAILQ_REMOVE(&ring->copy, xfer, next);
|
|
usb_host_iso_free_xfer(xfer, false);
|
|
}
|
|
|
|
QTAILQ_REMOVE(&ring->host->isorings, ring, next);
|
|
g_free(ring);
|
|
}
|
|
|
|
static void usb_host_iso_free_all(USBHostDevice *s)
|
|
{
|
|
USBHostIsoRing *ring;
|
|
|
|
while ((ring = QTAILQ_FIRST(&s->isorings)) != NULL) {
|
|
usb_host_iso_free(ring);
|
|
}
|
|
}
|
|
|
|
static bool usb_host_iso_data_copy(USBHostIsoXfer *xfer, USBPacket *p)
|
|
{
|
|
unsigned int psize;
|
|
unsigned char *buf;
|
|
|
|
buf = libusb_get_iso_packet_buffer_simple(xfer->xfer, xfer->packet);
|
|
if (p->pid == USB_TOKEN_OUT) {
|
|
psize = p->iov.size;
|
|
if (psize > xfer->ring->ep->max_packet_size) {
|
|
/* should not happen (guest bug) */
|
|
psize = xfer->ring->ep->max_packet_size;
|
|
}
|
|
xfer->xfer->iso_packet_desc[xfer->packet].length = psize;
|
|
} else {
|
|
psize = xfer->xfer->iso_packet_desc[xfer->packet].actual_length;
|
|
if (psize > p->iov.size) {
|
|
/* should not happen (guest bug) */
|
|
psize = p->iov.size;
|
|
}
|
|
}
|
|
usb_packet_copy(p, buf, psize);
|
|
xfer->packet++;
|
|
xfer->copy_complete = (xfer->packet == xfer->xfer->num_iso_packets);
|
|
return xfer->copy_complete;
|
|
}
|
|
|
|
static void usb_host_iso_data_in(USBHostDevice *s, USBPacket *p)
|
|
{
|
|
USBHostIsoRing *ring;
|
|
USBHostIsoXfer *xfer;
|
|
bool disconnect = false;
|
|
int rc;
|
|
|
|
ring = usb_host_iso_find(s, p->ep);
|
|
if (ring == NULL) {
|
|
ring = usb_host_iso_alloc(s, p->ep);
|
|
}
|
|
|
|
/* copy data to guest */
|
|
xfer = QTAILQ_FIRST(&ring->copy);
|
|
if (xfer != NULL) {
|
|
if (usb_host_iso_data_copy(xfer, p)) {
|
|
QTAILQ_REMOVE(&ring->copy, xfer, next);
|
|
QTAILQ_INSERT_TAIL(&ring->unused, xfer, next);
|
|
}
|
|
}
|
|
|
|
/* submit empty bufs to host */
|
|
while ((xfer = QTAILQ_FIRST(&ring->unused)) != NULL) {
|
|
QTAILQ_REMOVE(&ring->unused, xfer, next);
|
|
usb_host_iso_reset_xfer(xfer);
|
|
rc = libusb_submit_transfer(xfer->xfer);
|
|
if (rc != 0) {
|
|
usb_host_libusb_error("libusb_submit_transfer [iso]", rc);
|
|
QTAILQ_INSERT_TAIL(&ring->unused, xfer, next);
|
|
if (rc == LIBUSB_ERROR_NO_DEVICE) {
|
|
disconnect = true;
|
|
}
|
|
break;
|
|
}
|
|
if (QTAILQ_EMPTY(&ring->inflight)) {
|
|
trace_usb_host_iso_start(s->bus_num, s->addr, p->ep->nr);
|
|
}
|
|
QTAILQ_INSERT_TAIL(&ring->inflight, xfer, next);
|
|
}
|
|
|
|
if (disconnect) {
|
|
usb_host_nodev(s);
|
|
}
|
|
}
|
|
|
|
static void usb_host_iso_data_out(USBHostDevice *s, USBPacket *p)
|
|
{
|
|
USBHostIsoRing *ring;
|
|
USBHostIsoXfer *xfer;
|
|
bool disconnect = false;
|
|
int rc, filled = 0;
|
|
|
|
ring = usb_host_iso_find(s, p->ep);
|
|
if (ring == NULL) {
|
|
ring = usb_host_iso_alloc(s, p->ep);
|
|
}
|
|
|
|
/* copy data from guest */
|
|
xfer = QTAILQ_FIRST(&ring->copy);
|
|
while (xfer != NULL && xfer->copy_complete) {
|
|
filled++;
|
|
xfer = QTAILQ_NEXT(xfer, next);
|
|
}
|
|
if (xfer == NULL) {
|
|
xfer = QTAILQ_FIRST(&ring->unused);
|
|
if (xfer == NULL) {
|
|
trace_usb_host_iso_out_of_bufs(s->bus_num, s->addr, p->ep->nr);
|
|
return;
|
|
}
|
|
QTAILQ_REMOVE(&ring->unused, xfer, next);
|
|
usb_host_iso_reset_xfer(xfer);
|
|
QTAILQ_INSERT_TAIL(&ring->copy, xfer, next);
|
|
}
|
|
usb_host_iso_data_copy(xfer, p);
|
|
|
|
if (QTAILQ_EMPTY(&ring->inflight)) {
|
|
/* wait until half of our buffers are filled
|
|
before kicking the iso out stream */
|
|
if (filled*2 < s->iso_urb_count) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* submit filled bufs to host */
|
|
while ((xfer = QTAILQ_FIRST(&ring->copy)) != NULL &&
|
|
xfer->copy_complete) {
|
|
QTAILQ_REMOVE(&ring->copy, xfer, next);
|
|
rc = libusb_submit_transfer(xfer->xfer);
|
|
if (rc != 0) {
|
|
usb_host_libusb_error("libusb_submit_transfer [iso]", rc);
|
|
QTAILQ_INSERT_TAIL(&ring->unused, xfer, next);
|
|
if (rc == LIBUSB_ERROR_NO_DEVICE) {
|
|
disconnect = true;
|
|
}
|
|
break;
|
|
}
|
|
if (QTAILQ_EMPTY(&ring->inflight)) {
|
|
trace_usb_host_iso_start(s->bus_num, s->addr, p->ep->nr);
|
|
}
|
|
QTAILQ_INSERT_TAIL(&ring->inflight, xfer, next);
|
|
}
|
|
|
|
if (disconnect) {
|
|
usb_host_nodev(s);
|
|
}
|
|
}
|
|
|
|
/* ------------------------------------------------------------------------ */
|
|
|
|
static bool usb_host_full_speed_compat(USBHostDevice *s)
|
|
{
|
|
struct libusb_config_descriptor *conf;
|
|
const struct libusb_interface_descriptor *intf;
|
|
const struct libusb_endpoint_descriptor *endp;
|
|
uint8_t type;
|
|
int rc, c, i, a, e;
|
|
|
|
for (c = 0;; c++) {
|
|
rc = libusb_get_config_descriptor(s->dev, c, &conf);
|
|
if (rc != 0) {
|
|
break;
|
|
}
|
|
for (i = 0; i < conf->bNumInterfaces; i++) {
|
|
for (a = 0; a < conf->interface[i].num_altsetting; a++) {
|
|
intf = &conf->interface[i].altsetting[a];
|
|
for (e = 0; e < intf->bNumEndpoints; e++) {
|
|
endp = &intf->endpoint[e];
|
|
type = endp->bmAttributes & 0x3;
|
|
switch (type) {
|
|
case 0x01: /* ISO */
|
|
return false;
|
|
case 0x03: /* INTERRUPT */
|
|
if (endp->wMaxPacketSize > 64) {
|
|
return false;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
libusb_free_config_descriptor(conf);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static void usb_host_ep_update(USBHostDevice *s)
|
|
{
|
|
static const char *tname[] = {
|
|
[USB_ENDPOINT_XFER_CONTROL] = "control",
|
|
[USB_ENDPOINT_XFER_ISOC] = "isoc",
|
|
[USB_ENDPOINT_XFER_BULK] = "bulk",
|
|
[USB_ENDPOINT_XFER_INT] = "int",
|
|
};
|
|
USBDevice *udev = USB_DEVICE(s);
|
|
struct libusb_config_descriptor *conf;
|
|
const struct libusb_interface_descriptor *intf;
|
|
const struct libusb_endpoint_descriptor *endp;
|
|
#if LIBUSBX_API_VERSION >= 0x01000103
|
|
struct libusb_ss_endpoint_companion_descriptor *endp_ss_comp;
|
|
#endif
|
|
uint8_t devep, type;
|
|
int pid, ep;
|
|
int rc, i, e;
|
|
|
|
usb_ep_reset(udev);
|
|
rc = libusb_get_active_config_descriptor(s->dev, &conf);
|
|
if (rc != 0) {
|
|
return;
|
|
}
|
|
trace_usb_host_parse_config(s->bus_num, s->addr,
|
|
conf->bConfigurationValue, true);
|
|
|
|
for (i = 0; i < conf->bNumInterfaces; i++) {
|
|
assert(udev->altsetting[i] < conf->interface[i].num_altsetting);
|
|
intf = &conf->interface[i].altsetting[udev->altsetting[i]];
|
|
trace_usb_host_parse_interface(s->bus_num, s->addr,
|
|
intf->bInterfaceNumber,
|
|
intf->bAlternateSetting, true);
|
|
for (e = 0; e < intf->bNumEndpoints; e++) {
|
|
endp = &intf->endpoint[e];
|
|
|
|
devep = endp->bEndpointAddress;
|
|
pid = (devep & USB_DIR_IN) ? USB_TOKEN_IN : USB_TOKEN_OUT;
|
|
ep = devep & 0xf;
|
|
type = endp->bmAttributes & 0x3;
|
|
|
|
if (ep == 0) {
|
|
trace_usb_host_parse_error(s->bus_num, s->addr,
|
|
"invalid endpoint address");
|
|
return;
|
|
}
|
|
if (usb_ep_get_type(udev, pid, ep) != USB_ENDPOINT_XFER_INVALID) {
|
|
trace_usb_host_parse_error(s->bus_num, s->addr,
|
|
"duplicate endpoint address");
|
|
return;
|
|
}
|
|
|
|
trace_usb_host_parse_endpoint(s->bus_num, s->addr, ep,
|
|
(devep & USB_DIR_IN) ? "in" : "out",
|
|
tname[type], true);
|
|
usb_ep_set_max_packet_size(udev, pid, ep,
|
|
endp->wMaxPacketSize);
|
|
usb_ep_set_type(udev, pid, ep, type);
|
|
usb_ep_set_ifnum(udev, pid, ep, i);
|
|
usb_ep_set_halted(udev, pid, ep, 0);
|
|
#if LIBUSBX_API_VERSION >= 0x01000103
|
|
if (type == LIBUSB_TRANSFER_TYPE_BULK &&
|
|
libusb_get_ss_endpoint_companion_descriptor(ctx, endp,
|
|
&endp_ss_comp) == LIBUSB_SUCCESS) {
|
|
usb_ep_set_max_streams(udev, pid, ep,
|
|
endp_ss_comp->bmAttributes);
|
|
libusb_free_ss_endpoint_companion_descriptor(endp_ss_comp);
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
|
|
libusb_free_config_descriptor(conf);
|
|
}
|
|
|
|
static int usb_host_open(USBHostDevice *s, libusb_device *dev)
|
|
{
|
|
USBDevice *udev = USB_DEVICE(s);
|
|
int bus_num = libusb_get_bus_number(dev);
|
|
int addr = libusb_get_device_address(dev);
|
|
int rc;
|
|
|
|
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;
|
|
}
|
|
|
|
s->dev = dev;
|
|
s->bus_num = bus_num;
|
|
s->addr = addr;
|
|
|
|
usb_host_detach_kernel(s);
|
|
|
|
libusb_get_device_descriptor(dev, &s->ddesc);
|
|
usb_host_get_port(s->dev, s->port, sizeof(s->port));
|
|
|
|
usb_ep_init(udev);
|
|
usb_host_ep_update(s);
|
|
|
|
udev->speed = speed_map[libusb_get_device_speed(dev)];
|
|
udev->speedmask = (1 << udev->speed);
|
|
if (udev->speed == USB_SPEED_HIGH && usb_host_full_speed_compat(s)) {
|
|
udev->speedmask |= USB_SPEED_MASK_FULL;
|
|
}
|
|
|
|
if (s->ddesc.iProduct) {
|
|
libusb_get_string_descriptor_ascii(s->dh, s->ddesc.iProduct,
|
|
(unsigned char *)udev->product_desc,
|
|
sizeof(udev->product_desc));
|
|
} else {
|
|
snprintf(udev->product_desc, sizeof(udev->product_desc),
|
|
"host:%d.%d", bus_num, addr);
|
|
}
|
|
|
|
rc = usb_device_attach(udev);
|
|
if (rc) {
|
|
goto fail;
|
|
}
|
|
|
|
trace_usb_host_open_success(bus_num, addr);
|
|
return 0;
|
|
|
|
fail:
|
|
trace_usb_host_open_failure(bus_num, addr);
|
|
if (s->dh != NULL) {
|
|
libusb_close(s->dh);
|
|
s->dh = NULL;
|
|
s->dev = NULL;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
static void usb_host_abort_xfers(USBHostDevice *s)
|
|
{
|
|
USBHostRequest *r, *rtmp;
|
|
|
|
QTAILQ_FOREACH_SAFE(r, &s->requests, next, rtmp) {
|
|
usb_host_req_abort(r);
|
|
}
|
|
}
|
|
|
|
static int usb_host_close(USBHostDevice *s)
|
|
{
|
|
USBDevice *udev = USB_DEVICE(s);
|
|
|
|
if (s->dh == NULL) {
|
|
return -1;
|
|
}
|
|
|
|
trace_usb_host_close(s->bus_num, s->addr);
|
|
|
|
usb_host_abort_xfers(s);
|
|
usb_host_iso_free_all(s);
|
|
|
|
if (udev->attached) {
|
|
usb_device_detach(udev);
|
|
}
|
|
|
|
usb_host_release_interfaces(s);
|
|
libusb_reset_device(s->dh);
|
|
usb_host_attach_kernel(s);
|
|
libusb_close(s->dh);
|
|
s->dh = NULL;
|
|
s->dev = NULL;
|
|
|
|
usb_host_auto_check(NULL);
|
|
return 0;
|
|
}
|
|
|
|
static void usb_host_nodev_bh(void *opaque)
|
|
{
|
|
USBHostDevice *s = opaque;
|
|
usb_host_close(s);
|
|
}
|
|
|
|
static void usb_host_nodev(USBHostDevice *s)
|
|
{
|
|
if (!s->bh_nodev) {
|
|
s->bh_nodev = qemu_bh_new(usb_host_nodev_bh, s);
|
|
}
|
|
qemu_bh_schedule(s->bh_nodev);
|
|
}
|
|
|
|
static void usb_host_exit_notifier(struct Notifier *n, void *data)
|
|
{
|
|
USBHostDevice *s = container_of(n, USBHostDevice, exit);
|
|
|
|
if (s->dh) {
|
|
usb_host_release_interfaces(s);
|
|
usb_host_attach_kernel(s);
|
|
}
|
|
}
|
|
|
|
static int usb_host_initfn(USBDevice *udev)
|
|
{
|
|
USBHostDevice *s = USB_HOST_DEVICE(udev);
|
|
|
|
loglevel = s->loglevel;
|
|
udev->flags |= (1 << USB_DEV_FLAG_IS_HOST);
|
|
udev->auto_attach = 0;
|
|
QTAILQ_INIT(&s->requests);
|
|
QTAILQ_INIT(&s->isorings);
|
|
|
|
s->exit.notify = usb_host_exit_notifier;
|
|
qemu_add_exit_notifier(&s->exit);
|
|
|
|
QTAILQ_INSERT_TAIL(&hostdevs, s, next);
|
|
add_boot_device_path(s->bootindex, &udev->qdev, NULL);
|
|
usb_host_auto_check(NULL);
|
|
return 0;
|
|
}
|
|
|
|
static void usb_host_handle_destroy(USBDevice *udev)
|
|
{
|
|
USBHostDevice *s = USB_HOST_DEVICE(udev);
|
|
|
|
qemu_remove_exit_notifier(&s->exit);
|
|
QTAILQ_REMOVE(&hostdevs, s, next);
|
|
usb_host_close(s);
|
|
}
|
|
|
|
static void usb_host_cancel_packet(USBDevice *udev, USBPacket *p)
|
|
{
|
|
USBHostDevice *s = USB_HOST_DEVICE(udev);
|
|
USBHostRequest *r;
|
|
|
|
if (p->combined) {
|
|
usb_combined_packet_cancel(udev, p);
|
|
return;
|
|
}
|
|
|
|
trace_usb_host_req_canceled(s->bus_num, s->addr, p);
|
|
|
|
r = usb_host_req_find(s, p);
|
|
if (r && r->p) {
|
|
r->p = NULL; /* mark as dead */
|
|
libusb_cancel_transfer(r->xfer);
|
|
}
|
|
}
|
|
|
|
static void usb_host_detach_kernel(USBHostDevice *s)
|
|
{
|
|
struct libusb_config_descriptor *conf;
|
|
int rc, i;
|
|
|
|
rc = libusb_get_active_config_descriptor(s->dev, &conf);
|
|
if (rc != 0) {
|
|
return;
|
|
}
|
|
for (i = 0; i < conf->bNumInterfaces; i++) {
|
|
rc = libusb_kernel_driver_active(s->dh, i);
|
|
usb_host_libusb_error("libusb_kernel_driver_active", rc);
|
|
if (rc != 1) {
|
|
continue;
|
|
}
|
|
trace_usb_host_detach_kernel(s->bus_num, s->addr, i);
|
|
rc = libusb_detach_kernel_driver(s->dh, i);
|
|
usb_host_libusb_error("libusb_detach_kernel_driver", rc);
|
|
s->ifs[i].detached = true;
|
|
}
|
|
libusb_free_config_descriptor(conf);
|
|
}
|
|
|
|
static void usb_host_attach_kernel(USBHostDevice *s)
|
|
{
|
|
struct libusb_config_descriptor *conf;
|
|
int rc, i;
|
|
|
|
rc = libusb_get_active_config_descriptor(s->dev, &conf);
|
|
if (rc != 0) {
|
|
return;
|
|
}
|
|
for (i = 0; i < conf->bNumInterfaces; i++) {
|
|
if (!s->ifs[i].detached) {
|
|
continue;
|
|
}
|
|
trace_usb_host_attach_kernel(s->bus_num, s->addr, i);
|
|
libusb_attach_kernel_driver(s->dh, i);
|
|
s->ifs[i].detached = false;
|
|
}
|
|
libusb_free_config_descriptor(conf);
|
|
}
|
|
|
|
static int usb_host_claim_interfaces(USBHostDevice *s, int configuration)
|
|
{
|
|
USBDevice *udev = USB_DEVICE(s);
|
|
struct libusb_config_descriptor *conf;
|
|
int rc, i;
|
|
|
|
for (i = 0; i < USB_MAX_INTERFACES; i++) {
|
|
udev->altsetting[i] = 0;
|
|
}
|
|
udev->ninterfaces = 0;
|
|
udev->configuration = 0;
|
|
|
|
usb_host_detach_kernel(s);
|
|
|
|
rc = libusb_get_active_config_descriptor(s->dev, &conf);
|
|
if (rc != 0) {
|
|
if (rc == LIBUSB_ERROR_NOT_FOUND) {
|
|
/* address state - ignore */
|
|
return USB_RET_SUCCESS;
|
|
}
|
|
return USB_RET_STALL;
|
|
}
|
|
|
|
for (i = 0; i < conf->bNumInterfaces; i++) {
|
|
trace_usb_host_claim_interface(s->bus_num, s->addr, configuration, i);
|
|
rc = libusb_claim_interface(s->dh, i);
|
|
usb_host_libusb_error("libusb_claim_interface", rc);
|
|
if (rc != 0) {
|
|
return USB_RET_STALL;
|
|
}
|
|
s->ifs[i].claimed = true;
|
|
}
|
|
|
|
udev->ninterfaces = conf->bNumInterfaces;
|
|
udev->configuration = configuration;
|
|
|
|
libusb_free_config_descriptor(conf);
|
|
return USB_RET_SUCCESS;
|
|
}
|
|
|
|
static void usb_host_release_interfaces(USBHostDevice *s)
|
|
{
|
|
USBDevice *udev = USB_DEVICE(s);
|
|
int i, rc;
|
|
|
|
for (i = 0; i < udev->ninterfaces; i++) {
|
|
if (!s->ifs[i].claimed) {
|
|
continue;
|
|
}
|
|
trace_usb_host_release_interface(s->bus_num, s->addr, i);
|
|
rc = libusb_release_interface(s->dh, i);
|
|
usb_host_libusb_error("libusb_release_interface", rc);
|
|
s->ifs[i].claimed = false;
|
|
}
|
|
}
|
|
|
|
static void usb_host_set_address(USBHostDevice *s, int addr)
|
|
{
|
|
USBDevice *udev = USB_DEVICE(s);
|
|
|
|
trace_usb_host_set_address(s->bus_num, s->addr, addr);
|
|
udev->addr = addr;
|
|
}
|
|
|
|
static void usb_host_set_config(USBHostDevice *s, int config, USBPacket *p)
|
|
{
|
|
int rc;
|
|
|
|
trace_usb_host_set_config(s->bus_num, s->addr, config);
|
|
|
|
usb_host_release_interfaces(s);
|
|
rc = libusb_set_configuration(s->dh, config);
|
|
if (rc != 0) {
|
|
usb_host_libusb_error("libusb_set_configuration", rc);
|
|
p->status = USB_RET_STALL;
|
|
if (rc == LIBUSB_ERROR_NO_DEVICE) {
|
|
usb_host_nodev(s);
|
|
}
|
|
return;
|
|
}
|
|
p->status = usb_host_claim_interfaces(s, config);
|
|
if (p->status != USB_RET_SUCCESS) {
|
|
return;
|
|
}
|
|
usb_host_ep_update(s);
|
|
}
|
|
|
|
static void usb_host_set_interface(USBHostDevice *s, int iface, int alt,
|
|
USBPacket *p)
|
|
{
|
|
USBDevice *udev = USB_DEVICE(s);
|
|
int rc;
|
|
|
|
trace_usb_host_set_interface(s->bus_num, s->addr, iface, alt);
|
|
|
|
usb_host_iso_free_all(s);
|
|
|
|
if (iface >= USB_MAX_INTERFACES) {
|
|
p->status = USB_RET_STALL;
|
|
return;
|
|
}
|
|
|
|
rc = libusb_set_interface_alt_setting(s->dh, iface, alt);
|
|
if (rc != 0) {
|
|
usb_host_libusb_error("libusb_set_interface_alt_setting", rc);
|
|
p->status = USB_RET_STALL;
|
|
if (rc == LIBUSB_ERROR_NO_DEVICE) {
|
|
usb_host_nodev(s);
|
|
}
|
|
return;
|
|
}
|
|
|
|
udev->altsetting[iface] = alt;
|
|
usb_host_ep_update(s);
|
|
}
|
|
|
|
static void usb_host_handle_control(USBDevice *udev, USBPacket *p,
|
|
int request, int value, int index,
|
|
int length, uint8_t *data)
|
|
{
|
|
USBHostDevice *s = USB_HOST_DEVICE(udev);
|
|
USBHostRequest *r;
|
|
int rc;
|
|
|
|
trace_usb_host_req_control(s->bus_num, s->addr, p, request, value, index);
|
|
|
|
if (s->dh == NULL) {
|
|
p->status = USB_RET_NODEV;
|
|
trace_usb_host_req_emulated(s->bus_num, s->addr, p, p->status);
|
|
return;
|
|
}
|
|
|
|
switch (request) {
|
|
case DeviceOutRequest | USB_REQ_SET_ADDRESS:
|
|
usb_host_set_address(s, value);
|
|
trace_usb_host_req_emulated(s->bus_num, s->addr, p, p->status);
|
|
return;
|
|
|
|
case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:
|
|
usb_host_set_config(s, value & 0xff, p);
|
|
trace_usb_host_req_emulated(s->bus_num, s->addr, p, p->status);
|
|
return;
|
|
|
|
case InterfaceOutRequest | USB_REQ_SET_INTERFACE:
|
|
usb_host_set_interface(s, index, value, p);
|
|
trace_usb_host_req_emulated(s->bus_num, s->addr, p, p->status);
|
|
return;
|
|
|
|
case EndpointOutRequest | USB_REQ_CLEAR_FEATURE:
|
|
if (value == 0) { /* clear halt */
|
|
int pid = (index & USB_DIR_IN) ? USB_TOKEN_IN : USB_TOKEN_OUT;
|
|
libusb_clear_halt(s->dh, index);
|
|
usb_ep_set_halted(udev, pid, index & 0x0f, 0);
|
|
trace_usb_host_req_emulated(s->bus_num, s->addr, p, p->status);
|
|
return;
|
|
}
|
|
}
|
|
|
|
r = usb_host_req_alloc(s, p, (request >> 8) & USB_DIR_IN, length + 8);
|
|
r->cbuf = data;
|
|
r->clen = length;
|
|
memcpy(r->buffer, udev->setup_buf, 8);
|
|
if (!r->in) {
|
|
memcpy(r->buffer + 8, r->cbuf, r->clen);
|
|
}
|
|
|
|
libusb_fill_control_transfer(r->xfer, s->dh, r->buffer,
|
|
usb_host_req_complete_ctrl, r,
|
|
CONTROL_TIMEOUT);
|
|
rc = libusb_submit_transfer(r->xfer);
|
|
if (rc != 0) {
|
|
p->status = USB_RET_NODEV;
|
|
trace_usb_host_req_complete(s->bus_num, s->addr, p,
|
|
p->status, p->actual_length);
|
|
if (rc == LIBUSB_ERROR_NO_DEVICE) {
|
|
usb_host_nodev(s);
|
|
}
|
|
return;
|
|
}
|
|
|
|
p->status = USB_RET_ASYNC;
|
|
}
|
|
|
|
static void usb_host_handle_data(USBDevice *udev, USBPacket *p)
|
|
{
|
|
USBHostDevice *s = USB_HOST_DEVICE(udev);
|
|
USBHostRequest *r;
|
|
size_t size;
|
|
int ep, rc;
|
|
|
|
if (usb_host_use_combining(p->ep) && p->state == USB_PACKET_SETUP) {
|
|
p->status = USB_RET_ADD_TO_QUEUE;
|
|
return;
|
|
}
|
|
|
|
trace_usb_host_req_data(s->bus_num, s->addr, p,
|
|
p->pid == USB_TOKEN_IN,
|
|
p->ep->nr, p->iov.size);
|
|
|
|
if (s->dh == NULL) {
|
|
p->status = USB_RET_NODEV;
|
|
trace_usb_host_req_emulated(s->bus_num, s->addr, p, p->status);
|
|
return;
|
|
}
|
|
if (p->ep->halted) {
|
|
p->status = USB_RET_STALL;
|
|
trace_usb_host_req_emulated(s->bus_num, s->addr, p, p->status);
|
|
return;
|
|
}
|
|
|
|
switch (usb_ep_get_type(udev, p->pid, p->ep->nr)) {
|
|
case USB_ENDPOINT_XFER_BULK:
|
|
size = usb_packet_size(p);
|
|
r = usb_host_req_alloc(s, p, p->pid == USB_TOKEN_IN, size);
|
|
if (!r->in) {
|
|
usb_packet_copy(p, r->buffer, size);
|
|
}
|
|
ep = p->ep->nr | (r->in ? USB_DIR_IN : 0);
|
|
if (p->stream) {
|
|
#if LIBUSBX_API_VERSION >= 0x01000103
|
|
libusb_fill_bulk_stream_transfer(r->xfer, s->dh, ep, p->stream,
|
|
r->buffer, size,
|
|
usb_host_req_complete_data, r,
|
|
BULK_TIMEOUT);
|
|
#else
|
|
usb_host_req_free(r);
|
|
p->status = USB_RET_STALL;
|
|
return;
|
|
#endif
|
|
} else {
|
|
libusb_fill_bulk_transfer(r->xfer, s->dh, ep,
|
|
r->buffer, size,
|
|
usb_host_req_complete_data, r,
|
|
BULK_TIMEOUT);
|
|
}
|
|
break;
|
|
case USB_ENDPOINT_XFER_INT:
|
|
r = usb_host_req_alloc(s, p, p->pid == USB_TOKEN_IN, p->iov.size);
|
|
if (!r->in) {
|
|
usb_packet_copy(p, r->buffer, p->iov.size);
|
|
}
|
|
ep = p->ep->nr | (r->in ? USB_DIR_IN : 0);
|
|
libusb_fill_interrupt_transfer(r->xfer, s->dh, ep,
|
|
r->buffer, p->iov.size,
|
|
usb_host_req_complete_data, r,
|
|
INTR_TIMEOUT);
|
|
break;
|
|
case USB_ENDPOINT_XFER_ISOC:
|
|
if (p->pid == USB_TOKEN_IN) {
|
|
usb_host_iso_data_in(s, p);
|
|
} else {
|
|
usb_host_iso_data_out(s, p);
|
|
}
|
|
trace_usb_host_req_complete(s->bus_num, s->addr, p,
|
|
p->status, p->actual_length);
|
|
return;
|
|
default:
|
|
p->status = USB_RET_STALL;
|
|
trace_usb_host_req_complete(s->bus_num, s->addr, p,
|
|
p->status, p->actual_length);
|
|
return;
|
|
}
|
|
|
|
rc = libusb_submit_transfer(r->xfer);
|
|
if (rc != 0) {
|
|
p->status = USB_RET_NODEV;
|
|
trace_usb_host_req_complete(s->bus_num, s->addr, p,
|
|
p->status, p->actual_length);
|
|
if (rc == LIBUSB_ERROR_NO_DEVICE) {
|
|
usb_host_nodev(s);
|
|
}
|
|
return;
|
|
}
|
|
|
|
p->status = USB_RET_ASYNC;
|
|
}
|
|
|
|
static void usb_host_flush_ep_queue(USBDevice *dev, USBEndpoint *ep)
|
|
{
|
|
if (usb_host_use_combining(ep)) {
|
|
usb_ep_combine_input_packets(ep);
|
|
}
|
|
}
|
|
|
|
static void usb_host_handle_reset(USBDevice *udev)
|
|
{
|
|
USBHostDevice *s = USB_HOST_DEVICE(udev);
|
|
int rc;
|
|
|
|
trace_usb_host_reset(s->bus_num, s->addr);
|
|
|
|
rc = libusb_reset_device(s->dh);
|
|
if (rc != 0) {
|
|
usb_host_nodev(s);
|
|
}
|
|
}
|
|
|
|
static int usb_host_alloc_streams(USBDevice *udev, USBEndpoint **eps,
|
|
int nr_eps, int streams)
|
|
{
|
|
#if LIBUSBX_API_VERSION >= 0x01000103
|
|
USBHostDevice *s = USB_HOST_DEVICE(udev);
|
|
unsigned char endpoints[30];
|
|
int i, rc;
|
|
|
|
for (i = 0; i < nr_eps; i++) {
|
|
endpoints[i] = eps[i]->nr;
|
|
if (eps[i]->pid == USB_TOKEN_IN) {
|
|
endpoints[i] |= 0x80;
|
|
}
|
|
}
|
|
rc = libusb_alloc_streams(s->dh, streams, endpoints, nr_eps);
|
|
if (rc < 0) {
|
|
usb_host_libusb_error("libusb_alloc_streams", rc);
|
|
} else if (rc != streams) {
|
|
fprintf(stderr,
|
|
"libusb_alloc_streams: got less streams then requested %d < %d\n",
|
|
rc, streams);
|
|
}
|
|
|
|
return (rc == streams) ? 0 : -1;
|
|
#else
|
|
fprintf(stderr, "libusb_alloc_streams: error not implemented\n");
|
|
return -1;
|
|
#endif
|
|
}
|
|
|
|
static void usb_host_free_streams(USBDevice *udev, USBEndpoint **eps,
|
|
int nr_eps)
|
|
{
|
|
#if LIBUSBX_API_VERSION >= 0x01000103
|
|
USBHostDevice *s = USB_HOST_DEVICE(udev);
|
|
unsigned char endpoints[30];
|
|
int i;
|
|
|
|
for (i = 0; i < nr_eps; i++) {
|
|
endpoints[i] = eps[i]->nr;
|
|
if (eps[i]->pid == USB_TOKEN_IN) {
|
|
endpoints[i] |= 0x80;
|
|
}
|
|
}
|
|
libusb_free_streams(s->dh, endpoints, nr_eps);
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* This is *NOT* about restoring state. We have absolutely no idea
|
|
* what state the host device is in at the moment and whenever it is
|
|
* still present in the first place. Attemping to contine where we
|
|
* left off is impossible.
|
|
*
|
|
* What we are going to to to here is emulate a surprise removal of
|
|
* the usb device passed through, then kick host scan so the device
|
|
* will get re-attached (and re-initialized by the guest) in case it
|
|
* is still present.
|
|
*
|
|
* As the device removal will change the state of other devices (usb
|
|
* host controller, most likely interrupt controller too) we have to
|
|
* wait with it until *all* vmstate is loaded. Thus post_load just
|
|
* kicks a bottom half which then does the actual work.
|
|
*/
|
|
static void usb_host_post_load_bh(void *opaque)
|
|
{
|
|
USBHostDevice *dev = opaque;
|
|
USBDevice *udev = USB_DEVICE(dev);
|
|
|
|
if (dev->dh != NULL) {
|
|
usb_host_close(dev);
|
|
}
|
|
if (udev->attached) {
|
|
usb_device_detach(udev);
|
|
}
|
|
usb_host_auto_check(NULL);
|
|
}
|
|
|
|
static int usb_host_post_load(void *opaque, int version_id)
|
|
{
|
|
USBHostDevice *dev = opaque;
|
|
|
|
if (!dev->bh_postld) {
|
|
dev->bh_postld = qemu_bh_new(usb_host_post_load_bh, dev);
|
|
}
|
|
qemu_bh_schedule(dev->bh_postld);
|
|
return 0;
|
|
}
|
|
|
|
static const VMStateDescription vmstate_usb_host = {
|
|
.name = "usb-host",
|
|
.version_id = 1,
|
|
.minimum_version_id = 1,
|
|
.post_load = usb_host_post_load,
|
|
.fields = (VMStateField[]) {
|
|
VMSTATE_USB_DEVICE(parent_obj, USBHostDevice),
|
|
VMSTATE_END_OF_LIST()
|
|
}
|
|
};
|
|
|
|
static Property usb_host_dev_properties[] = {
|
|
DEFINE_PROP_UINT32("hostbus", USBHostDevice, match.bus_num, 0),
|
|
DEFINE_PROP_UINT32("hostaddr", USBHostDevice, match.addr, 0),
|
|
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),
|
|
DEFINE_PROP_UINT32("isobufs", USBHostDevice, iso_urb_count, 4),
|
|
DEFINE_PROP_UINT32("isobsize", USBHostDevice, iso_urb_frames, 32),
|
|
DEFINE_PROP_INT32("bootindex", USBHostDevice, bootindex, -1),
|
|
DEFINE_PROP_UINT32("loglevel", USBHostDevice, loglevel,
|
|
LIBUSB_LOG_LEVEL_WARNING),
|
|
DEFINE_PROP_BIT("pipeline", USBHostDevice, options,
|
|
USB_HOST_OPT_PIPELINE, true),
|
|
DEFINE_PROP_END_OF_LIST(),
|
|
};
|
|
|
|
static void usb_host_class_initfn(ObjectClass *klass, void *data)
|
|
{
|
|
DeviceClass *dc = DEVICE_CLASS(klass);
|
|
USBDeviceClass *uc = USB_DEVICE_CLASS(klass);
|
|
|
|
uc->init = usb_host_initfn;
|
|
uc->product_desc = "USB Host Device";
|
|
uc->cancel_packet = usb_host_cancel_packet;
|
|
uc->handle_data = usb_host_handle_data;
|
|
uc->handle_control = usb_host_handle_control;
|
|
uc->handle_reset = usb_host_handle_reset;
|
|
uc->handle_destroy = usb_host_handle_destroy;
|
|
uc->flush_ep_queue = usb_host_flush_ep_queue;
|
|
uc->alloc_streams = usb_host_alloc_streams;
|
|
uc->free_streams = usb_host_free_streams;
|
|
dc->vmsd = &vmstate_usb_host;
|
|
dc->props = usb_host_dev_properties;
|
|
set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
|
|
}
|
|
|
|
static TypeInfo usb_host_dev_info = {
|
|
.name = TYPE_USB_HOST_DEVICE,
|
|
.parent = TYPE_USB_DEVICE,
|
|
.instance_size = sizeof(USBHostDevice),
|
|
.class_init = usb_host_class_initfn,
|
|
};
|
|
|
|
static void usb_host_register_types(void)
|
|
{
|
|
type_register_static(&usb_host_dev_info);
|
|
}
|
|
|
|
type_init(usb_host_register_types)
|
|
|
|
/* ------------------------------------------------------------------------ */
|
|
|
|
static QEMUTimer *usb_auto_timer;
|
|
static VMChangeStateEntry *usb_vmstate;
|
|
|
|
static void usb_host_vm_state(void *unused, int running, RunState state)
|
|
{
|
|
if (running) {
|
|
usb_host_auto_check(unused);
|
|
}
|
|
}
|
|
|
|
static void usb_host_auto_check(void *unused)
|
|
{
|
|
struct USBHostDevice *s;
|
|
struct USBAutoFilter *f;
|
|
libusb_device **devs;
|
|
struct libusb_device_descriptor ddesc;
|
|
int unconnected = 0;
|
|
int i, n;
|
|
|
|
if (usb_host_init() != 0) {
|
|
return;
|
|
}
|
|
|
|
if (runstate_is_running()) {
|
|
n = libusb_get_device_list(ctx, &devs);
|
|
for (i = 0; i < n; i++) {
|
|
if (libusb_get_device_descriptor(devs[i], &ddesc) != 0) {
|
|
continue;
|
|
}
|
|
if (ddesc.bDeviceClass == LIBUSB_CLASS_HUB) {
|
|
continue;
|
|
}
|
|
QTAILQ_FOREACH(s, &hostdevs, next) {
|
|
f = &s->match;
|
|
if (f->bus_num > 0 &&
|
|
f->bus_num != libusb_get_bus_number(devs[i])) {
|
|
continue;
|
|
}
|
|
if (f->addr > 0 &&
|
|
f->addr != libusb_get_device_address(devs[i])) {
|
|
continue;
|
|
}
|
|
if (f->port != NULL) {
|
|
char port[16] = "-";
|
|
usb_host_get_port(devs[i], port, sizeof(port));
|
|
if (strcmp(f->port, port) != 0) {
|
|
continue;
|
|
}
|
|
}
|
|
if (f->vendor_id > 0 &&
|
|
f->vendor_id != ddesc.idVendor) {
|
|
continue;
|
|
}
|
|
if (f->product_id > 0 &&
|
|
f->product_id != ddesc.idProduct) {
|
|
continue;
|
|
}
|
|
|
|
/* We got a match */
|
|
s->seen++;
|
|
if (s->errcount >= 3) {
|
|
continue;
|
|
}
|
|
if (s->dh != NULL) {
|
|
continue;
|
|
}
|
|
if (usb_host_open(s, devs[i]) < 0) {
|
|
s->errcount++;
|
|
continue;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
libusb_free_device_list(devs, 1);
|
|
|
|
QTAILQ_FOREACH(s, &hostdevs, next) {
|
|
if (s->dh == NULL) {
|
|
unconnected++;
|
|
}
|
|
if (s->seen == 0) {
|
|
if (s->dh) {
|
|
usb_host_close(s);
|
|
}
|
|
s->errcount = 0;
|
|
}
|
|
s->seen = 0;
|
|
}
|
|
|
|
#if 0
|
|
if (unconnected == 0) {
|
|
/* nothing to watch */
|
|
if (usb_auto_timer) {
|
|
timer_del(usb_auto_timer);
|
|
trace_usb_host_auto_scan_disabled();
|
|
}
|
|
return;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
if (!usb_vmstate) {
|
|
usb_vmstate = qemu_add_vm_change_state_handler(usb_host_vm_state, NULL);
|
|
}
|
|
if (!usb_auto_timer) {
|
|
usb_auto_timer = timer_new_ms(QEMU_CLOCK_REALTIME, usb_host_auto_check, NULL);
|
|
if (!usb_auto_timer) {
|
|
return;
|
|
}
|
|
trace_usb_host_auto_scan_enabled();
|
|
}
|
|
timer_mod(usb_auto_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + 2000);
|
|
}
|
|
|
|
void usb_host_info(Monitor *mon, const QDict *qdict)
|
|
{
|
|
libusb_device **devs;
|
|
struct libusb_device_descriptor ddesc;
|
|
char port[16];
|
|
int i, n;
|
|
|
|
if (usb_host_init() != 0) {
|
|
return;
|
|
}
|
|
|
|
n = libusb_get_device_list(ctx, &devs);
|
|
for (i = 0; i < n; i++) {
|
|
if (libusb_get_device_descriptor(devs[i], &ddesc) != 0) {
|
|
continue;
|
|
}
|
|
if (ddesc.bDeviceClass == LIBUSB_CLASS_HUB) {
|
|
continue;
|
|
}
|
|
usb_host_get_port(devs[i], port, sizeof(port));
|
|
monitor_printf(mon, " Bus %d, Addr %d, Port %s, Speed %s Mb/s\n",
|
|
libusb_get_bus_number(devs[i]),
|
|
libusb_get_device_address(devs[i]),
|
|
port,
|
|
speed_name[libusb_get_device_speed(devs[i])]);
|
|
monitor_printf(mon, " Class %02x:", ddesc.bDeviceClass);
|
|
monitor_printf(mon, " USB device %04x:%04x",
|
|
ddesc.idVendor, ddesc.idProduct);
|
|
if (ddesc.iProduct) {
|
|
libusb_device_handle *handle;
|
|
if (libusb_open(devs[i], &handle) == 0) {
|
|
unsigned char name[64] = "";
|
|
libusb_get_string_descriptor_ascii(handle,
|
|
ddesc.iProduct,
|
|
name, sizeof(name));
|
|
libusb_close(handle);
|
|
monitor_printf(mon, ", %s", name);
|
|
}
|
|
}
|
|
monitor_printf(mon, "\n");
|
|
}
|
|
libusb_free_device_list(devs, 1);
|
|
}
|