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/*
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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" |
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|
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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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|
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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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|
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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); |
| 73 |
|
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if (dev->ep_fd[ep] < 0) { |
| 75 |
#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); |
| 79 |
#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) |
| 85 |
fd = open(buf, mode); |
| 86 |
if (fd < 0) { |
| 87 |
#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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|
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return dev->ep_fd[ep];
|
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} |
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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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|
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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; |
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|
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if ((request >> 8) == UT_WRITE_DEVICE && |
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(request & 0xff) == UR_SET_ADDRESS) {
|
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|
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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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|
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ensure_eps_closed(s); /* can't do this without all eps closed */
|
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|
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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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|
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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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|
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aiface.uai_interface_index = index; |
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aiface.uai_alt_no = value; |
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|
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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); |
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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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|
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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; |
| 182 |
req.ucr_flags = USBD_SHORT_XFER_OK; |
| 183 |
|
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ret = ioctl(s->devfd, USB_SET_TIMEOUT, &timeout); |
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#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)); |
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#endif
|
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} |
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|
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ret = ioctl(s->devfd, USB_DO_REQUEST, &req); |
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/* 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) { |
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#ifdef DEBUG
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printf("handle_control: error after request - %s\n",
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strerror(errno)); |
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#endif
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return USB_RET_NAK; // STALL |
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} 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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|
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static int usb_host_handle_data(USBDevice *dev, USBPacket *p) |
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{
|
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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; |
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|
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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); |
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sigprocmask(SIG_BLOCK, &new_mask, &old_mask); |
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|
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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; |
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} |
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|
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fd = ensure_ep_open(s, devep, mode); |
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if (fd < 0) { |
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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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} |
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} |
| 254 |
|
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if (p->pid == USB_TOKEN_IN)
|
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ret = read(fd, p->data, p->len); |
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else
|
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ret = write(fd, p->data, p->len); |
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|
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sigprocmask(SIG_SETMASK, &old_mask, NULL);
|
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|
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if (ret < 0) { |
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#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)); |
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#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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} |
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} else {
|
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return ret;
|
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} |
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} |
| 278 |
|
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static void usb_host_handle_destroy(USBDevice *opaque) |
| 280 |
{
|
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USBHostDevice *s = (USBHostDevice *)opaque; |
| 282 |
int i;
|
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|
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for (i = 0; i < USB_MAX_ENDPOINTS; i++) |
| 285 |
if (s->ep_fd[i] >= 0) |
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close(s->ep_fd[i]); |
| 287 |
|
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if (s->devfd < 0) |
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return;
|
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|
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close(s->devfd); |
| 292 |
|
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qemu_free(s); |
| 294 |
} |
| 295 |
|
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USBDevice *usb_host_device_open(const char *devname) |
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{
|
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struct usb_device_info bus_info, dev_info;
|
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USBHostDevice *dev; |
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char ctlpath[PATH_MAX + 1]; |
| 301 |
char buspath[PATH_MAX + 1]; |
| 302 |
int bfd, dfd, bus, address, i;
|
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int ugendebug = UGEN_DEBUG_LEVEL;
|
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|
| 305 |
if (usb_host_find_device(&bus, &address, devname) < 0) |
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return NULL; |
| 307 |
|
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snprintf(buspath, PATH_MAX, "/dev/usb%d", bus);
|
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|
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bfd = open(buspath, O_RDWR); |
| 311 |
if (bfd < 0) { |
| 312 |
#ifdef DEBUG
|
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printf("usb_host_device_open: failed to open usb bus - %s\n",
|
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strerror(errno)); |
| 315 |
#endif
|
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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
|
| 322 |
printf("usb_host_device_open: failed to grab bus information - %s\n",
|
| 323 |
strerror(errno)); |
| 324 |
#endif
|
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return NULL; |
| 326 |
} |
| 327 |
|
| 328 |
#if defined(__FreeBSD__) || defined(__DragonFly__)
|
| 329 |
snprintf(ctlpath, PATH_MAX, "/dev/%s", bus_info.udi_devnames[0]); |
| 330 |
#else
|
| 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;
|
| 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(Monitor *mon, 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 |
|
| 562 |
switch(speed) {
|
| 563 |
case USB_SPEED_LOW:
|
| 564 |
speed_str = "1.5";
|
| 565 |
break;
|
| 566 |
case USB_SPEED_FULL:
|
| 567 |
speed_str = "12";
|
| 568 |
break;
|
| 569 |
case USB_SPEED_HIGH:
|
| 570 |
speed_str = "480";
|
| 571 |
break;
|
| 572 |
default:
|
| 573 |
speed_str = "?";
|
| 574 |
break;
|
| 575 |
} |
| 576 |
|
| 577 |
monitor_printf(mon, " Device %d.%d, speed %s Mb/s\n",
|
| 578 |
bus_num, addr, speed_str); |
| 579 |
class_str = usb_class_str(class_id); |
| 580 |
if (class_str)
|
| 581 |
monitor_printf(mon, " %s:", class_str);
|
| 582 |
else
|
| 583 |
monitor_printf(mon, " Class %02x:", class_id);
|
| 584 |
monitor_printf(mon, " USB device %04x:%04x", vendor_id, product_id);
|
| 585 |
if (product_name[0] != '\0') |
| 586 |
monitor_printf(mon, ", %s", product_name);
|
| 587 |
monitor_printf(mon, "\n");
|
| 588 |
} |
| 589 |
|
| 590 |
static int usb_host_info_device(void *opaque, |
| 591 |
int bus_num, int addr, |
| 592 |
int class_id,
|
| 593 |
int vendor_id, int product_id, |
| 594 |
const char *product_name, |
| 595 |
int speed)
|
| 596 |
{
|
| 597 |
Monitor *mon = opaque; |
| 598 |
|
| 599 |
usb_info_device(mon, bus_num, addr, class_id, vendor_id, product_id, |
| 600 |
product_name, speed); |
| 601 |
return 0; |
| 602 |
} |
| 603 |
|
| 604 |
void usb_host_info(Monitor *mon)
|
| 605 |
{
|
| 606 |
usb_host_scan(mon, usb_host_info_device); |
| 607 |
} |
| 608 |
|
| 609 |
/* XXX add this */
|
| 610 |
int usb_host_device_close(const char *devname) |
| 611 |
{
|
| 612 |
return 0; |
| 613 |
} |