2 * BSD host USB redirector
4 * Copyright (c) 2006 Lonnie Mendez
5 * Portions of code and concepts borrowed from
6 * usb-linux.c and libusb's bsd.c and are copyright their respective owners.
8 * Permission is hereby granted, free of charge, to any person obtaining a copy
9 * of this software and associated documentation files (the "Software"), to deal
10 * in the Software without restriction, including without limitation the rights
11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12 * copies of the Software, and to permit persons to whom the Software is
13 * furnished to do so, subject to the following conditions:
15 * The above copyright notice and this permission notice shall be included in
16 * all copies or substantial portions of the Software.
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
27 #include "qemu-common.h"
31 /* usb.h declares these */
36 #include <sys/ioctl.h>
38 #include <dev/usb/usb.h>
40 #include <bus/usb/usb.h>
43 /* This value has maximum potential at 16.
44 * You should also set hw.usb.debug to gain
48 #define UGEN_DEBUG_LEVEL 0
51 typedef int USBScanFunc(void *opaque, int bus_num, int addr, int class_id,
52 int vendor_id, int product_id,
53 const char *product_name, int speed);
54 static int usb_host_find_device(int *pbus_num, int *paddr,
57 typedef struct USBHostDevice {
59 int ep_fd[USB_MAX_ENDPOINTS];
65 static int ensure_ep_open(USBHostDevice *dev, int ep, int mode)
70 /* Get the address for this endpoint */
73 if (dev->ep_fd[ep] < 0) {
74 #if defined(__FreeBSD__) || defined(__DragonFly__)
75 snprintf(buf, sizeof(buf) - 1, "%s.%d", dev->devpath, ep);
77 snprintf(buf, sizeof(buf) - 1, "%s.%02d", dev->devpath, ep);
79 /* Try to open it O_RDWR first for those devices which have in and out
80 * endpoints with the same address (eg 0x02 and 0x82)
82 fd = open(buf, O_RDWR);
83 if (fd < 0 && errno == ENXIO)
87 printf("ensure_ep_open: failed to open device endpoint %s: %s\n",
88 buf, strerror(errno));
94 return dev->ep_fd[ep];
97 static void ensure_eps_closed(USBHostDevice *dev)
104 while (epnum < USB_MAX_ENDPOINTS) {
105 if (dev->ep_fd[epnum] >= 0) {
106 close(dev->ep_fd[epnum]);
107 dev->ep_fd[epnum] = -1;
113 static void usb_host_handle_reset(USBDevice *dev)
116 USBHostDevice *s = (USBHostDevice *)dev;
121 * -check device states against transfer requests
122 * and return appropriate response
124 static int usb_host_handle_control(USBDevice *dev,
132 USBHostDevice *s = (USBHostDevice *)dev;
133 struct usb_ctl_request req;
134 struct usb_alt_interface aiface;
135 int ret, timeout = 50;
137 if ((request >> 8) == UT_WRITE_DEVICE &&
138 (request & 0xff) == UR_SET_ADDRESS) {
140 /* specific SET_ADDRESS support */
143 } else if ((request >> 8) == UT_WRITE_DEVICE &&
144 (request & 0xff) == UR_SET_CONFIG) {
146 ensure_eps_closed(s); /* can't do this without all eps closed */
148 ret = ioctl(s->devfd, USB_SET_CONFIG, &value);
151 printf("handle_control: failed to set configuration - %s\n",
154 return USB_RET_STALL;
158 } else if ((request >> 8) == UT_WRITE_INTERFACE &&
159 (request & 0xff) == UR_SET_INTERFACE) {
161 aiface.uai_interface_index = index;
162 aiface.uai_alt_no = value;
164 ensure_eps_closed(s); /* can't do this without all eps closed */
165 ret = ioctl(s->devfd, USB_SET_ALTINTERFACE, &aiface);
168 printf("handle_control: failed to set alternate interface - %s\n",
171 return USB_RET_STALL;
176 req.ucr_request.bmRequestType = request >> 8;
177 req.ucr_request.bRequest = request & 0xff;
178 USETW(req.ucr_request.wValue, value);
179 USETW(req.ucr_request.wIndex, index);
180 USETW(req.ucr_request.wLength, length);
182 req.ucr_flags = USBD_SHORT_XFER_OK;
184 ret = ioctl(s->devfd, USB_SET_TIMEOUT, &timeout);
185 #if defined(__NetBSD__) || defined(__OpenBSD__)
186 if (ret < 0 && errno != EINVAL) {
191 printf("handle_control: setting timeout failed - %s\n",
196 ret = ioctl(s->devfd, USB_DO_REQUEST, &req);
197 /* ugen returns EIO for usbd_do_request_ no matter what
198 * happens with the transfer */
201 printf("handle_control: error after request - %s\n",
204 return USB_RET_NAK; // STALL
206 return req.ucr_actlen;
211 static int usb_host_handle_data(USBDevice *dev, USBPacket *p)
213 USBHostDevice *s = (USBHostDevice *)dev;
215 int one = 1, shortpacket = 0, timeout = 50;
216 sigset_t new_mask, old_mask;
217 uint8_t devep = p->ep->nr;
219 /* protect data transfers from SIGALRM signal */
220 sigemptyset(&new_mask);
221 sigaddset(&new_mask, SIGALRM);
222 sigprocmask(SIG_BLOCK, &new_mask, &old_mask);
224 if (p->pid == USB_TOKEN_IN) {
232 fd = ensure_ep_open(s, devep, mode);
234 sigprocmask(SIG_SETMASK, &old_mask, NULL);
235 return USB_RET_NODEV;
238 if (ioctl(fd, USB_SET_TIMEOUT, &timeout) < 0) {
240 printf("handle_data: failed to set timeout - %s\n",
246 if (ioctl(fd, USB_SET_SHORT_XFER, &one) < 0) {
248 printf("handle_data: failed to set short xfer mode - %s\n",
251 sigprocmask(SIG_SETMASK, &old_mask, NULL);
255 if (p->pid == USB_TOKEN_IN)
256 ret = readv(fd, p->iov.iov, p->iov.niov);
258 ret = writev(fd, p->iov.iov, p->iov.niov);
260 sigprocmask(SIG_SETMASK, &old_mask, NULL);
264 printf("handle_data: error after %s data - %s\n",
265 pid == USB_TOKEN_IN ? "reading" : "writing", strerror(errno));
272 return USB_RET_STALL;
279 static void usb_host_handle_destroy(USBDevice *opaque)
281 USBHostDevice *s = (USBHostDevice *)opaque;
284 for (i = 0; i < USB_MAX_ENDPOINTS; i++)
285 if (s->ep_fd[i] >= 0)
296 static int usb_host_initfn(USBDevice *dev)
301 USBDevice *usb_host_device_open(USBBus *guest_bus, const char *devname)
303 struct usb_device_info bus_info, dev_info;
304 USBDevice *d = NULL, *ret = NULL;
306 char ctlpath[PATH_MAX + 1];
307 char buspath[PATH_MAX + 1];
308 int bfd, dfd, bus, address, i;
309 int ugendebug = UGEN_DEBUG_LEVEL;
311 if (usb_host_find_device(&bus, &address, devname) < 0) {
315 snprintf(buspath, PATH_MAX, "/dev/usb%d", bus);
317 bfd = open(buspath, O_RDWR);
320 printf("usb_host_device_open: failed to open usb bus - %s\n",
326 bus_info.udi_addr = address;
327 if (ioctl(bfd, USB_DEVICEINFO, &bus_info) < 0) {
329 printf("usb_host_device_open: failed to grab bus information - %s\n",
335 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
336 snprintf(ctlpath, PATH_MAX, "/dev/%s", bus_info.udi_devnames[0]);
338 snprintf(ctlpath, PATH_MAX, "/dev/%s.00", bus_info.udi_devnames[0]);
341 dfd = open(ctlpath, O_RDWR);
343 dfd = open(ctlpath, O_RDONLY);
346 printf("usb_host_device_open: failed to open usb device %s - %s\n",
347 ctlpath, strerror(errno));
353 if (ioctl(dfd, USB_GET_DEVICEINFO, &dev_info) < 0) {
355 printf("usb_host_device_open: failed to grab device info - %s\n",
361 d = usb_create(guest_bus, "usb-host");
362 dev = DO_UPCAST(USBHostDevice, dev, d);
364 if (dev_info.udi_speed == 1) {
365 dev->dev.speed = USB_SPEED_LOW - 1;
366 dev->dev.speedmask = USB_SPEED_MASK_LOW;
368 dev->dev.speed = USB_SPEED_FULL - 1;
369 dev->dev.speedmask = USB_SPEED_MASK_FULL;
372 if (strncmp(dev_info.udi_product, "product", 7) != 0) {
373 pstrcpy(dev->dev.product_desc, sizeof(dev->dev.product_desc),
374 dev_info.udi_product);
376 snprintf(dev->dev.product_desc, sizeof(dev->dev.product_desc),
380 pstrcpy(dev->devpath, sizeof(dev->devpath), "/dev/");
381 pstrcat(dev->devpath, sizeof(dev->devpath), dev_info.udi_devnames[0]);
383 /* Mark the endpoints as not yet open */
384 for (i = 0; i < USB_MAX_ENDPOINTS; i++) {
388 ioctl(dfd, USB_SETDEBUG, &ugendebug);
390 ret = (USBDevice *)dev;
400 static void usb_host_class_initfn(ObjectClass *klass, void *data)
402 USBDeviceClass *uc = USB_DEVICE_CLASS(klass);
404 uc->product_desc = "USB Host Device";
405 uc->init = usb_host_initfn;
406 uc->handle_reset = usb_host_handle_reset;
407 uc->handle_control = usb_host_handle_control;
408 uc->handle_data = usb_host_handle_data;
409 uc->handle_destroy = usb_host_handle_destroy;
412 static TypeInfo usb_host_dev_info = {
414 .parent = TYPE_USB_DEVICE,
415 .instance_size = sizeof(USBHostDevice),
416 .class_init = usb_host_class_initfn,
419 static void usb_host_register_types(void)
421 type_register_static(&usb_host_dev_info);
424 type_init(usb_host_register_types)
426 static int usb_host_scan(void *opaque, USBScanFunc *func)
428 struct usb_device_info bus_info;
429 struct usb_device_info dev_info;
430 uint16_t vendor_id, product_id, class_id, speed;
431 int bfd, dfd, bus, address;
432 char busbuf[20], devbuf[20], product_name[256];
435 for (bus = 0; bus < 10; bus++) {
437 snprintf(busbuf, sizeof(busbuf) - 1, "/dev/usb%d", bus);
438 bfd = open(busbuf, O_RDWR);
442 for (address = 1; address < 127; address++) {
444 bus_info.udi_addr = address;
445 if (ioctl(bfd, USB_DEVICEINFO, &bus_info) < 0)
448 /* only list devices that can be used by generic layer */
449 if (strncmp(bus_info.udi_devnames[0], "ugen", 4) != 0)
452 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
453 snprintf(devbuf, sizeof(devbuf) - 1, "/dev/%s", bus_info.udi_devnames[0]);
455 snprintf(devbuf, sizeof(devbuf) - 1, "/dev/%s.00", bus_info.udi_devnames[0]);
458 dfd = open(devbuf, O_RDONLY);
461 printf("usb_host_scan: couldn't open device %s - %s\n", devbuf,
467 if (ioctl(dfd, USB_GET_DEVICEINFO, &dev_info) < 0)
468 printf("usb_host_scan: couldn't get device information for %s - %s\n",
469 devbuf, strerror(errno));
471 /* XXX: might need to fixup endianness of word values before copying over */
473 vendor_id = dev_info.udi_vendorNo;
474 product_id = dev_info.udi_productNo;
475 class_id = dev_info.udi_class;
476 speed = dev_info.udi_speed;
478 if (strncmp(dev_info.udi_product, "product", 7) != 0)
479 pstrcpy(product_name, sizeof(product_name),
480 dev_info.udi_product);
482 product_name[0] = '\0';
484 ret = func(opaque, bus, address, class_id, vendor_id,
485 product_id, product_name, speed);
500 typedef struct FindDeviceState {
507 static int usb_host_find_device_scan(void *opaque, int bus_num, int addr,
509 int vendor_id, int product_id,
510 const char *product_name, int speed)
512 FindDeviceState *s = opaque;
513 if (vendor_id == s->vendor_id &&
514 product_id == s->product_id) {
515 s->bus_num = bus_num;
525 'bus.addr' (decimal numbers) or
526 'vendor_id:product_id' (hexa numbers) */
527 static int usb_host_find_device(int *pbus_num, int *paddr,
534 p = strchr(devname, '.');
536 *pbus_num = strtoul(devname, NULL, 0);
537 *paddr = strtoul(p + 1, NULL, 0);
540 p = strchr(devname, ':');
542 fs.vendor_id = strtoul(devname, NULL, 16);
543 fs.product_id = strtoul(p + 1, NULL, 16);
544 ret = usb_host_scan(&fs, usb_host_find_device_scan);
546 *pbus_num = fs.bus_num;
554 /**********************/
555 /* USB host device info */
557 struct usb_class_info {
559 const char *class_name;
562 static const struct usb_class_info usb_class_info[] = {
563 { USB_CLASS_AUDIO, "Audio"},
564 { USB_CLASS_COMM, "Communication"},
565 { USB_CLASS_HID, "HID"},
566 { USB_CLASS_HUB, "Hub" },
567 { USB_CLASS_PHYSICAL, "Physical" },
568 { USB_CLASS_PRINTER, "Printer" },
569 { USB_CLASS_MASS_STORAGE, "Storage" },
570 { USB_CLASS_CDC_DATA, "Data" },
571 { USB_CLASS_APP_SPEC, "Application Specific" },
572 { USB_CLASS_VENDOR_SPEC, "Vendor Specific" },
573 { USB_CLASS_STILL_IMAGE, "Still Image" },
574 { USB_CLASS_CSCID, "Smart Card" },
575 { USB_CLASS_CONTENT_SEC, "Content Security" },
579 static const char *usb_class_str(uint8_t class)
581 const struct usb_class_info *p;
582 for (p = usb_class_info; p->class != -1; p++) {
583 if (p->class == class)
586 return p->class_name;
589 static void usb_info_device(Monitor *mon, int bus_num, int addr, int class_id,
590 int vendor_id, int product_id,
591 const char *product_name,
594 const char *class_str, *speed_str;
611 monitor_printf(mon, " Device %d.%d, speed %s Mb/s\n",
612 bus_num, addr, speed_str);
613 class_str = usb_class_str(class_id);
615 monitor_printf(mon, " %s:", class_str);
617 monitor_printf(mon, " Class %02x:", class_id);
618 monitor_printf(mon, " USB device %04x:%04x", vendor_id, product_id);
619 if (product_name[0] != '\0')
620 monitor_printf(mon, ", %s", product_name);
621 monitor_printf(mon, "\n");
624 static int usb_host_info_device(void *opaque,
625 int bus_num, int addr,
627 int vendor_id, int product_id,
628 const char *product_name,
631 Monitor *mon = opaque;
633 usb_info_device(mon, bus_num, addr, class_id, vendor_id, product_id,
634 product_name, speed);
638 void usb_host_info(Monitor *mon)
640 usb_host_scan(mon, usb_host_info_device);
644 int usb_host_device_close(const char *devname)