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/*
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* BSD host USB redirector
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*
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* Copyright (c) 2006 Lonnie Mendez
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* Portions of code and concepts borrowed from
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* usb-linux.c and libusb's bsd.c and are copyright their respective owners.
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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 "qemu-common.h" |
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#include "monitor.h" |
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#include "hw/usb.h" |
30 |
|
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/* usb.h declares these */
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#undef USB_SPEED_HIGH
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#undef USB_SPEED_FULL
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#undef USB_SPEED_LOW
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#include <sys/ioctl.h> |
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#ifndef __DragonFly__
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#include <dev/usb/usb.h> |
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#else
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#include <bus/usb/usb.h> |
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#endif
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#include <signal.h> |
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/* This value has maximum potential at 16.
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* You should also set hw.usb.debug to gain
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* more detailed view.
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*/
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//#define DEBUG
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#define UGEN_DEBUG_LEVEL 0 |
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|
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|
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typedef int USBScanFunc(void *opaque, int bus_num, int addr, int class_id, |
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int vendor_id, int product_id, |
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const char *product_name, int speed); |
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static int usb_host_find_device(int *pbus_num, int *paddr, |
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const char *devname); |
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|
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typedef struct USBHostDevice { |
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USBDevice dev; |
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int ep_fd[USB_MAX_ENDPOINTS];
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int devfd;
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char devpath[32]; |
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} USBHostDevice; |
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|
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|
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static int ensure_ep_open(USBHostDevice *dev, int ep, int mode) |
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{ |
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char buf[32]; |
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int fd;
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|
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/* Get the address for this endpoint */
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ep = UE_GET_ADDR(ep); |
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|
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if (dev->ep_fd[ep] < 0) { |
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#if defined(__FreeBSD__) || defined(__DragonFly__)
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snprintf(buf, sizeof(buf) - 1, "%s.%d", dev->devpath, ep); |
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#else
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snprintf(buf, sizeof(buf) - 1, "%s.%02d", dev->devpath, ep); |
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#endif
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/* Try to open it O_RDWR first for those devices which have in and out
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* endpoints with the same address (eg 0x02 and 0x82)
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*/
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fd = open(buf, O_RDWR); |
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if (fd < 0 && errno == ENXIO) |
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fd = open(buf, mode); |
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if (fd < 0) { |
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#ifdef DEBUG
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printf("ensure_ep_open: failed to open device endpoint %s: %s\n",
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buf, strerror(errno)); |
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#endif
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} |
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dev->ep_fd[ep] = fd; |
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} |
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return dev->ep_fd[ep];
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} |
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static void ensure_eps_closed(USBHostDevice *dev) |
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{ |
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int epnum = 1; |
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|
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if (!dev)
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return;
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|
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while (epnum < USB_MAX_ENDPOINTS) {
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if (dev->ep_fd[epnum] >= 0) { |
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close(dev->ep_fd[epnum]); |
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dev->ep_fd[epnum] = -1;
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} |
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epnum++; |
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} |
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} |
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|
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static void usb_host_handle_reset(USBDevice *dev) |
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{ |
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#if 0
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USBHostDevice *s = (USBHostDevice *)dev;
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#endif
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} |
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/* XXX:
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* -check device states against transfer requests
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* and return appropriate response
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*/
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static int usb_host_handle_control(USBDevice *dev, |
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int request,
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int value,
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int index,
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int length,
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uint8_t *data) |
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{ |
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USBHostDevice *s = (USBHostDevice *)dev; |
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struct usb_ctl_request req;
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struct usb_alt_interface aiface;
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int ret, timeout = 50; |
136 |
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if ((request >> 8) == UT_WRITE_DEVICE && |
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(request & 0xff) == UR_SET_ADDRESS) {
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/* specific SET_ADDRESS support */
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dev->addr = value; |
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return 0; |
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} else if ((request >> 8) == UT_WRITE_DEVICE && |
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(request & 0xff) == UR_SET_CONFIG) {
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ensure_eps_closed(s); /* can't do this without all eps closed */
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ret = ioctl(s->devfd, USB_SET_CONFIG, &value); |
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if (ret < 0) { |
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#ifdef DEBUG
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printf("handle_control: failed to set configuration - %s\n",
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strerror(errno)); |
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#endif
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return USB_RET_STALL;
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} |
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return 0; |
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} else if ((request >> 8) == UT_WRITE_INTERFACE && |
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(request & 0xff) == UR_SET_INTERFACE) {
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aiface.uai_interface_index = index; |
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aiface.uai_alt_no = value; |
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ensure_eps_closed(s); /* can't do this without all eps closed */
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ret = ioctl(s->devfd, USB_SET_ALTINTERFACE, &aiface); |
166 |
if (ret < 0) { |
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#ifdef DEBUG
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printf("handle_control: failed to set alternate interface - %s\n",
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strerror(errno)); |
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#endif
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return USB_RET_STALL;
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} |
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return 0; |
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} else {
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req.ucr_request.bmRequestType = request >> 8;
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req.ucr_request.bRequest = request & 0xff;
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USETW(req.ucr_request.wValue, value); |
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USETW(req.ucr_request.wIndex, index); |
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USETW(req.ucr_request.wLength, length); |
181 |
req.ucr_data = data; |
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req.ucr_flags = USBD_SHORT_XFER_OK; |
183 |
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ret = ioctl(s->devfd, USB_SET_TIMEOUT, &timeout); |
185 |
#if defined(__NetBSD__) || defined(__OpenBSD__)
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if (ret < 0 && errno != EINVAL) { |
187 |
#else
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if (ret < 0) { |
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#endif
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#ifdef DEBUG
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printf("handle_control: setting timeout failed - %s\n",
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strerror(errno)); |
193 |
#endif
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} |
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ret = ioctl(s->devfd, USB_DO_REQUEST, &req); |
197 |
/* ugen returns EIO for usbd_do_request_ no matter what
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* happens with the transfer */
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if (ret < 0) { |
200 |
#ifdef DEBUG
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printf("handle_control: error after request - %s\n",
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strerror(errno)); |
203 |
#endif
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return USB_RET_NAK; // STALL |
205 |
} else {
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return req.ucr_actlen;
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} |
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} |
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} |
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static int usb_host_handle_data(USBDevice *dev, USBPacket *p) |
212 |
{ |
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USBHostDevice *s = (USBHostDevice *)dev; |
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int ret, fd, mode;
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int one = 1, shortpacket = 0, timeout = 50; |
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sigset_t new_mask, old_mask; |
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uint8_t devep = p->devep; |
218 |
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/* protect data transfers from SIGALRM signal */
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sigemptyset(&new_mask); |
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sigaddset(&new_mask, SIGALRM); |
222 |
sigprocmask(SIG_BLOCK, &new_mask, &old_mask); |
223 |
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if (p->pid == USB_TOKEN_IN) {
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devep |= 0x80;
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mode = O_RDONLY; |
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shortpacket = 1;
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} else {
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mode = O_WRONLY; |
230 |
} |
231 |
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fd = ensure_ep_open(s, devep, mode); |
233 |
if (fd < 0) { |
234 |
sigprocmask(SIG_SETMASK, &old_mask, NULL);
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return USB_RET_NODEV;
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} |
237 |
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if (ioctl(fd, USB_SET_TIMEOUT, &timeout) < 0) { |
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#ifdef DEBUG
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printf("handle_data: failed to set timeout - %s\n",
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strerror(errno)); |
242 |
#endif
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} |
244 |
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if (shortpacket) {
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if (ioctl(fd, USB_SET_SHORT_XFER, &one) < 0) { |
247 |
#ifdef DEBUG
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printf("handle_data: failed to set short xfer mode - %s\n",
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strerror(errno)); |
250 |
#endif
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sigprocmask(SIG_SETMASK, &old_mask, NULL);
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} |
253 |
} |
254 |
|
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if (p->pid == USB_TOKEN_IN)
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ret = read(fd, p->data, p->len); |
257 |
else
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ret = write(fd, p->data, p->len); |
259 |
|
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sigprocmask(SIG_SETMASK, &old_mask, NULL);
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|
262 |
if (ret < 0) { |
263 |
#ifdef DEBUG
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printf("handle_data: error after %s data - %s\n",
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pid == USB_TOKEN_IN ? "reading" : "writing", strerror(errno)); |
266 |
#endif
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switch(errno) {
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case ETIMEDOUT:
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case EINTR:
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return USB_RET_NAK;
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default:
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return USB_RET_STALL;
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} |
274 |
} else {
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return ret;
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276 |
} |
277 |
} |
278 |
|
279 |
static void usb_host_handle_destroy(USBDevice *opaque) |
280 |
{ |
281 |
USBHostDevice *s = (USBHostDevice *)opaque; |
282 |
int i;
|
283 |
|
284 |
for (i = 0; i < USB_MAX_ENDPOINTS; i++) |
285 |
if (s->ep_fd[i] >= 0) |
286 |
close(s->ep_fd[i]); |
287 |
|
288 |
if (s->devfd < 0) |
289 |
return;
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290 |
|
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close(s->devfd); |
292 |
|
293 |
qemu_free(s); |
294 |
} |
295 |
|
296 |
USBDevice *usb_host_device_open(const char *devname) |
297 |
{ |
298 |
struct usb_device_info bus_info, dev_info;
|
299 |
USBHostDevice *dev; |
300 |
char ctlpath[PATH_MAX + 1]; |
301 |
char buspath[PATH_MAX + 1]; |
302 |
int bfd, dfd, bus, address, i;
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303 |
int ugendebug = UGEN_DEBUG_LEVEL;
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304 |
|
305 |
if (usb_host_find_device(&bus, &address, devname) < 0) |
306 |
return NULL; |
307 |
|
308 |
snprintf(buspath, PATH_MAX, "/dev/usb%d", bus);
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309 |
|
310 |
bfd = open(buspath, O_RDWR); |
311 |
if (bfd < 0) { |
312 |
#ifdef DEBUG
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313 |
printf("usb_host_device_open: failed to open usb bus - %s\n",
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314 |
strerror(errno)); |
315 |
#endif
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316 |
return NULL; |
317 |
} |
318 |
|
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bus_info.udi_addr = address; |
320 |
if (ioctl(bfd, USB_DEVICEINFO, &bus_info) < 0) { |
321 |
#ifdef DEBUG
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322 |
printf("usb_host_device_open: failed to grab bus information - %s\n",
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323 |
strerror(errno)); |
324 |
#endif
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325 |
return NULL; |
326 |
} |
327 |
|
328 |
#if defined(__FreeBSD__) || defined(__DragonFly__)
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329 |
snprintf(ctlpath, PATH_MAX, "/dev/%s", bus_info.udi_devnames[0]); |
330 |
#else
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331 |
snprintf(ctlpath, PATH_MAX, "/dev/%s.00", bus_info.udi_devnames[0]); |
332 |
#endif
|
333 |
|
334 |
dfd = open(ctlpath, O_RDWR); |
335 |
if (dfd < 0) { |
336 |
dfd = open(ctlpath, O_RDONLY); |
337 |
if (dfd < 0) { |
338 |
#ifdef DEBUG
|
339 |
printf("usb_host_device_open: failed to open usb device %s - %s\n",
|
340 |
ctlpath, strerror(errno)); |
341 |
#endif
|
342 |
} |
343 |
} |
344 |
|
345 |
if (dfd >= 0) { |
346 |
dev = qemu_mallocz(sizeof(USBHostDevice));
|
347 |
dev->devfd = dfd; |
348 |
|
349 |
if (ioctl(dfd, USB_GET_DEVICEINFO, &dev_info) < 0) { |
350 |
#ifdef DEBUG
|
351 |
printf("usb_host_device_open: failed to grab device info - %s\n",
|
352 |
strerror(errno)); |
353 |
#endif
|
354 |
goto fail;
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355 |
} |
356 |
|
357 |
if (dev_info.udi_speed == 1) |
358 |
dev->dev.speed = USB_SPEED_LOW - 1;
|
359 |
else
|
360 |
dev->dev.speed = USB_SPEED_FULL - 1;
|
361 |
|
362 |
dev->dev.handle_packet = usb_generic_handle_packet; |
363 |
|
364 |
dev->dev.handle_reset = usb_host_handle_reset; |
365 |
dev->dev.handle_control = usb_host_handle_control; |
366 |
dev->dev.handle_data = usb_host_handle_data; |
367 |
dev->dev.handle_destroy = usb_host_handle_destroy; |
368 |
|
369 |
if (strncmp(dev_info.udi_product, "product", 7) != 0) |
370 |
pstrcpy(dev->dev.devname, sizeof(dev->dev.devname),
|
371 |
dev_info.udi_product); |
372 |
else
|
373 |
snprintf(dev->dev.devname, sizeof(dev->dev.devname),
|
374 |
"host:%s", devname);
|
375 |
|
376 |
pstrcpy(dev->devpath, sizeof(dev->devpath), "/dev/"); |
377 |
pstrcat(dev->devpath, sizeof(dev->devpath), dev_info.udi_devnames[0]); |
378 |
|
379 |
/* Mark the endpoints as not yet open */
|
380 |
for (i = 0; i < USB_MAX_ENDPOINTS; i++) |
381 |
dev->ep_fd[i] = -1;
|
382 |
|
383 |
ioctl(dfd, USB_SETDEBUG, &ugendebug); |
384 |
|
385 |
return (USBDevice *)dev;
|
386 |
} |
387 |
|
388 |
fail:
|
389 |
return NULL; |
390 |
} |
391 |
|
392 |
static int usb_host_scan(void *opaque, USBScanFunc *func) |
393 |
{ |
394 |
struct usb_device_info bus_info;
|
395 |
struct usb_device_info dev_info;
|
396 |
uint16_t vendor_id, product_id, class_id, speed; |
397 |
int bfd, dfd, bus, address;
|
398 |
char busbuf[20], devbuf[20], product_name[256]; |
399 |
int ret = 0; |
400 |
|
401 |
for (bus = 0; bus < 10; bus++) { |
402 |
|
403 |
snprintf(busbuf, sizeof(busbuf) - 1, "/dev/usb%d", bus); |
404 |
bfd = open(busbuf, O_RDWR); |
405 |
if (bfd < 0) |
406 |
continue;
|
407 |
|
408 |
for (address = 1; address < 127; address++) { |
409 |
|
410 |
bus_info.udi_addr = address; |
411 |
if (ioctl(bfd, USB_DEVICEINFO, &bus_info) < 0) |
412 |
continue;
|
413 |
|
414 |
/* only list devices that can be used by generic layer */
|
415 |
if (strncmp(bus_info.udi_devnames[0], "ugen", 4) != 0) |
416 |
continue;
|
417 |
|
418 |
#if defined(__FreeBSD__) || defined(__DragonFly__)
|
419 |
snprintf(devbuf, sizeof(devbuf) - 1, "/dev/%s", bus_info.udi_devnames[0]); |
420 |
#else
|
421 |
snprintf(devbuf, sizeof(devbuf) - 1, "/dev/%s.00", bus_info.udi_devnames[0]); |
422 |
#endif
|
423 |
|
424 |
dfd = open(devbuf, O_RDONLY); |
425 |
if (dfd < 0) { |
426 |
#ifdef DEBUG
|
427 |
printf("usb_host_scan: couldn't open device %s - %s\n", devbuf,
|
428 |
strerror(errno)); |
429 |
#endif
|
430 |
continue;
|
431 |
} |
432 |
|
433 |
if (ioctl(dfd, USB_GET_DEVICEINFO, &dev_info) < 0) |
434 |
printf("usb_host_scan: couldn't get device information for %s - %s\n",
|
435 |
devbuf, strerror(errno)); |
436 |
|
437 |
// XXX: might need to fixup endianess of word values before copying over
|
438 |
|
439 |
vendor_id = dev_info.udi_vendorNo; |
440 |
product_id = dev_info.udi_productNo; |
441 |
class_id = dev_info.udi_class; |
442 |
speed = dev_info.udi_speed; |
443 |
|
444 |
if (strncmp(dev_info.udi_product, "product", 7) != 0) |
445 |
pstrcpy(product_name, sizeof(product_name),
|
446 |
dev_info.udi_product); |
447 |
else
|
448 |
product_name[0] = '\0'; |
449 |
|
450 |
ret = func(opaque, bus, address, class_id, vendor_id, |
451 |
product_id, product_name, speed); |
452 |
|
453 |
close(dfd); |
454 |
|
455 |
if (ret)
|
456 |
goto the_end;
|
457 |
} |
458 |
|
459 |
close(bfd); |
460 |
} |
461 |
|
462 |
the_end:
|
463 |
return ret;
|
464 |
} |
465 |
|
466 |
typedef struct FindDeviceState { |
467 |
int vendor_id;
|
468 |
int product_id;
|
469 |
int bus_num;
|
470 |
int addr;
|
471 |
} FindDeviceState; |
472 |
|
473 |
static int usb_host_find_device_scan(void *opaque, int bus_num, int addr, |
474 |
int class_id,
|
475 |
int vendor_id, int product_id, |
476 |
const char *product_name, int speed) |
477 |
{ |
478 |
FindDeviceState *s = opaque; |
479 |
if (vendor_id == s->vendor_id &&
|
480 |
product_id == s->product_id) { |
481 |
s->bus_num = bus_num; |
482 |
s->addr = addr; |
483 |
return 1; |
484 |
} else {
|
485 |
return 0; |
486 |
} |
487 |
} |
488 |
|
489 |
|
490 |
/* the syntax is :
|
491 |
'bus.addr' (decimal numbers) or
|
492 |
'vendor_id:product_id' (hexa numbers) */
|
493 |
static int usb_host_find_device(int *pbus_num, int *paddr, |
494 |
const char *devname) |
495 |
{ |
496 |
const char *p; |
497 |
int ret;
|
498 |
FindDeviceState fs; |
499 |
|
500 |
p = strchr(devname, '.');
|
501 |
if (p) {
|
502 |
*pbus_num = strtoul(devname, NULL, 0); |
503 |
*paddr = strtoul(p + 1, NULL, 0); |
504 |
return 0; |
505 |
} |
506 |
p = strchr(devname, ':');
|
507 |
if (p) {
|
508 |
fs.vendor_id = strtoul(devname, NULL, 16); |
509 |
fs.product_id = strtoul(p + 1, NULL, 16); |
510 |
ret = usb_host_scan(&fs, usb_host_find_device_scan); |
511 |
if (ret) {
|
512 |
*pbus_num = fs.bus_num; |
513 |
*paddr = fs.addr; |
514 |
return 0; |
515 |
} |
516 |
} |
517 |
return -1; |
518 |
} |
519 |
|
520 |
/**********************/
|
521 |
/* USB host device info */
|
522 |
|
523 |
struct usb_class_info {
|
524 |
int class;
|
525 |
const char *class_name; |
526 |
}; |
527 |
|
528 |
static const struct usb_class_info usb_class_info[] = { |
529 |
{ USB_CLASS_AUDIO, "Audio"},
|
530 |
{ USB_CLASS_COMM, "Communication"},
|
531 |
{ USB_CLASS_HID, "HID"},
|
532 |
{ USB_CLASS_HUB, "Hub" },
|
533 |
{ USB_CLASS_PHYSICAL, "Physical" },
|
534 |
{ USB_CLASS_PRINTER, "Printer" },
|
535 |
{ USB_CLASS_MASS_STORAGE, "Storage" },
|
536 |
{ USB_CLASS_CDC_DATA, "Data" },
|
537 |
{ USB_CLASS_APP_SPEC, "Application Specific" },
|
538 |
{ USB_CLASS_VENDOR_SPEC, "Vendor Specific" },
|
539 |
{ USB_CLASS_STILL_IMAGE, "Still Image" },
|
540 |
{ USB_CLASS_CSCID, "Smart Card" },
|
541 |
{ USB_CLASS_CONTENT_SEC, "Content Security" },
|
542 |
{ -1, NULL } |
543 |
}; |
544 |
|
545 |
static const char *usb_class_str(uint8_t class) |
546 |
{ |
547 |
const struct usb_class_info *p; |
548 |
for (p = usb_class_info; p->class != -1; p++) { |
549 |
if (p->class == class)
|
550 |
break;
|
551 |
} |
552 |
return p->class_name;
|
553 |
} |
554 |
|
555 |
static void usb_info_device(int bus_num, int addr, int class_id, |
556 |
int vendor_id, int product_id, |
557 |
const char *product_name, |
558 |
int speed)
|
559 |
{ |
560 |
const char *class_str, *speed_str; |
561 |
Monitor *mon = cur_mon; |
562 |
|
563 |
switch(speed) {
|
564 |
case USB_SPEED_LOW:
|
565 |
speed_str = "1.5";
|
566 |
break;
|
567 |
case USB_SPEED_FULL:
|
568 |
speed_str = "12";
|
569 |
break;
|
570 |
case USB_SPEED_HIGH:
|
571 |
speed_str = "480";
|
572 |
break;
|
573 |
default:
|
574 |
speed_str = "?";
|
575 |
break;
|
576 |
} |
577 |
|
578 |
monitor_printf(mon, " Device %d.%d, speed %s Mb/s\n",
|
579 |
bus_num, addr, speed_str); |
580 |
class_str = usb_class_str(class_id); |
581 |
if (class_str)
|
582 |
monitor_printf(mon, " %s:", class_str);
|
583 |
else
|
584 |
monitor_printf(mon, " Class %02x:", class_id);
|
585 |
monitor_printf(mon, " USB device %04x:%04x", vendor_id, product_id);
|
586 |
if (product_name[0] != '\0') |
587 |
monitor_printf(mon, ", %s", product_name);
|
588 |
monitor_printf(mon, "\n");
|
589 |
} |
590 |
|
591 |
static int usb_host_info_device(void *opaque, |
592 |
int bus_num, int addr, |
593 |
int class_id,
|
594 |
int vendor_id, int product_id, |
595 |
const char *product_name, |
596 |
int speed)
|
597 |
{ |
598 |
usb_info_device(bus_num, addr, class_id, vendor_id, product_id, |
599 |
product_name, speed); |
600 |
return 0; |
601 |
} |
602 |
|
603 |
void usb_host_info(Monitor *mon)
|
604 |
{ |
605 |
usb_host_scan(NULL, usb_host_info_device);
|
606 |
} |
607 |
|
608 |
/* XXX add this */
|
609 |
int usb_host_device_close(const char *devname) |
610 |
{ |
611 |
return 0; |
612 |
} |