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>
44 /* This value has maximum potential at 16.
45 * You should also set hw.usb.debug to gain
49 #define UGEN_DEBUG_LEVEL 0
52 typedef int USBScanFunc(void *opaque, int bus_num, int addr, int class_id,
53 int vendor_id, int product_id,
54 const char *product_name, int speed);
55 static int usb_host_find_device(int *pbus_num, int *paddr,
58 typedef struct USBHostDevice {
60 int ep_fd[USB_MAX_ENDPOINTS];
67 static int ensure_ep_open(USBHostDevice *dev, int ep, int mode)
72 /* Get the address for this endpoint */
75 if (dev->ep_fd[ep] < 0) {
76 #if defined(__FreeBSD__) || defined(__DragonFly__)
77 snprintf(buf, sizeof(buf) - 1, "%s.%d", dev->devpath, ep);
79 snprintf(buf, sizeof(buf) - 1, "%s.%02d", dev->devpath, ep);
81 /* Try to open it O_RDWR first for those devices which have in and out
82 * endpoints with the same address (eg 0x02 and 0x82)
84 fd = open(buf, O_RDWR);
85 if (fd < 0 && errno == ENXIO)
89 printf("ensure_ep_open: failed to open device endpoint %s: %s\n",
90 buf, strerror(errno));
96 return dev->ep_fd[ep];
99 static void ensure_eps_closed(USBHostDevice *dev)
106 while (epnum < USB_MAX_ENDPOINTS) {
107 if (dev->ep_fd[epnum] >= 0) {
108 close(dev->ep_fd[epnum]);
109 dev->ep_fd[epnum] = -1;
116 static void usb_host_handle_reset(USBDevice *dev)
119 USBHostDevice *s = (USBHostDevice *)dev;
125 * -check device states against transfer requests
126 * and return appropriate response
128 static int usb_host_handle_control(USBDevice *dev,
135 USBHostDevice *s = (USBHostDevice *)dev;
136 struct usb_ctl_request req;
137 struct usb_alt_interface aiface;
138 int ret, timeout = 50;
140 if ((request >> 8) == UT_WRITE_DEVICE &&
141 (request & 0xff) == UR_SET_ADDRESS) {
143 /* specific SET_ADDRESS support */
146 } else if ((request >> 8) == UT_WRITE_DEVICE &&
147 (request & 0xff) == UR_SET_CONFIG) {
149 ensure_eps_closed(s); /* can't do this without all eps closed */
151 ret = ioctl(s->devfd, USB_SET_CONFIG, &value);
154 printf("handle_control: failed to set configuration - %s\n",
157 return USB_RET_STALL;
161 } else if ((request >> 8) == UT_WRITE_INTERFACE &&
162 (request & 0xff) == UR_SET_INTERFACE) {
164 aiface.uai_interface_index = index;
165 aiface.uai_alt_no = value;
167 ensure_eps_closed(s); /* can't do this without all eps closed */
168 ret = ioctl(s->devfd, USB_SET_ALTINTERFACE, &aiface);
171 printf("handle_control: failed to set alternate interface - %s\n",
174 return USB_RET_STALL;
179 req.ucr_request.bmRequestType = request >> 8;
180 req.ucr_request.bRequest = request & 0xff;
181 USETW(req.ucr_request.wValue, value);
182 USETW(req.ucr_request.wIndex, index);
183 USETW(req.ucr_request.wLength, length);
185 req.ucr_flags = USBD_SHORT_XFER_OK;
187 ret = ioctl(s->devfd, USB_SET_TIMEOUT, &timeout);
188 #if defined(__NetBSD__) || defined(__OpenBSD__)
189 if (ret < 0 && errno != EINVAL) {
194 printf("handle_control: setting timeout failed - %s\n",
199 ret = ioctl(s->devfd, USB_DO_REQUEST, &req);
200 /* ugen returns EIO for usbd_do_request_ no matter what
201 * happens with the transfer */
204 printf("handle_control: error after request - %s\n",
207 return USB_RET_NAK; // STALL
209 return req.ucr_actlen;
214 static int usb_host_handle_data(USBDevice *dev, USBPacket *p)
216 USBHostDevice *s = (USBHostDevice *)dev;
218 int one = 1, shortpacket = 0, timeout = 50;
219 sigset_t new_mask, old_mask;
220 uint8_t devep = p->devep;
222 /* protect data transfers from SIGALRM signal */
223 sigemptyset(&new_mask);
224 sigaddset(&new_mask, SIGALRM);
225 sigprocmask(SIG_BLOCK, &new_mask, &old_mask);
227 if (p->pid == USB_TOKEN_IN) {
235 fd = ensure_ep_open(s, devep, mode);
237 sigprocmask(SIG_SETMASK, &old_mask, NULL);
238 return USB_RET_NODEV;
241 if (ioctl(fd, USB_SET_TIMEOUT, &timeout) < 0) {
243 printf("handle_data: failed to set timeout - %s\n",
249 if (ioctl(fd, USB_SET_SHORT_XFER, &one) < 0) {
251 printf("handle_data: failed to set short xfer mode - %s\n",
254 sigprocmask(SIG_SETMASK, &old_mask, NULL);
258 if (p->pid == USB_TOKEN_IN)
259 ret = read(fd, p->data, p->len);
261 ret = write(fd, p->data, p->len);
263 sigprocmask(SIG_SETMASK, &old_mask, NULL);
267 printf("handle_data: error after %s data - %s\n",
268 pid == USB_TOKEN_IN ? "reading" : "writing", strerror(errno));
275 return USB_RET_STALL;
283 static void usb_host_handle_destroy(USBDevice *opaque)
285 USBHostDevice *s = (USBHostDevice *)opaque;
288 for (i = 0; i < USB_MAX_ENDPOINTS; i++)
289 if (s->ep_fd[i] >= 0)
300 static int usb_host_initfn(USBDevice *dev)
305 USBDevice *usb_host_device_open(const char *devname)
307 struct usb_device_info bus_info, dev_info;
310 char ctlpath[PATH_MAX + 1];
311 char buspath[PATH_MAX + 1];
312 int bfd, dfd, bus, address, i;
313 int ugendebug = UGEN_DEBUG_LEVEL;
315 if (usb_host_find_device(&bus, &address, devname) < 0)
318 snprintf(buspath, PATH_MAX, "/dev/usb%d", bus);
320 bfd = open(buspath, O_RDWR);
323 printf("usb_host_device_open: failed to open usb bus - %s\n",
329 bus_info.udi_addr = address;
330 if (ioctl(bfd, USB_DEVICEINFO, &bus_info) < 0) {
332 printf("usb_host_device_open: failed to grab bus information - %s\n",
338 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
339 snprintf(ctlpath, PATH_MAX, "/dev/%s", bus_info.udi_devnames[0]);
341 snprintf(ctlpath, PATH_MAX, "/dev/%s.00", bus_info.udi_devnames[0]);
344 dfd = open(ctlpath, O_RDWR);
346 dfd = open(ctlpath, O_RDONLY);
349 printf("usb_host_device_open: failed to open usb device %s - %s\n",
350 ctlpath, strerror(errno));
356 if (ioctl(dfd, USB_GET_DEVICEINFO, &dev_info) < 0) {
358 printf("usb_host_device_open: failed to grab device info - %s\n",
364 d = usb_create(NULL /* FIXME */, "usb-host");
365 dev = DO_UPCAST(USBHostDevice, dev, d);
367 if (dev_info.udi_speed == 1)
368 dev->dev.speed = USB_SPEED_LOW - 1;
370 dev->dev.speed = USB_SPEED_FULL - 1;
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),
379 pstrcpy(dev->devpath, sizeof(dev->devpath), "/dev/");
380 pstrcat(dev->devpath, sizeof(dev->devpath), dev_info.udi_devnames[0]);
382 /* Mark the endpoints as not yet open */
383 for (i = 0; i < USB_MAX_ENDPOINTS; i++)
386 ioctl(dfd, USB_SETDEBUG, &ugendebug);
388 return (USBDevice *)dev;
395 static struct USBDeviceInfo usb_host_dev_info = {
396 .product_desc = "USB Host Device",
397 .qdev.name = "usb-host",
398 .qdev.size = sizeof(USBHostDevice),
399 .init = usb_host_initfn,
400 .handle_packet = usb_generic_handle_packet,
401 .handle_reset = usb_host_handle_reset,
403 .handle_control = usb_host_handle_control,
404 .handle_data = usb_host_handle_data,
406 .handle_destroy = usb_host_handle_destroy,
409 static void usb_host_register_devices(void)
411 usb_qdev_register(&usb_host_dev_info);
413 device_init(usb_host_register_devices)
415 static int usb_host_scan(void *opaque, USBScanFunc *func)
417 struct usb_device_info bus_info;
418 struct usb_device_info dev_info;
419 uint16_t vendor_id, product_id, class_id, speed;
420 int bfd, dfd, bus, address;
421 char busbuf[20], devbuf[20], product_name[256];
424 for (bus = 0; bus < 10; bus++) {
426 snprintf(busbuf, sizeof(busbuf) - 1, "/dev/usb%d", bus);
427 bfd = open(busbuf, O_RDWR);
431 for (address = 1; address < 127; address++) {
433 bus_info.udi_addr = address;
434 if (ioctl(bfd, USB_DEVICEINFO, &bus_info) < 0)
437 /* only list devices that can be used by generic layer */
438 if (strncmp(bus_info.udi_devnames[0], "ugen", 4) != 0)
441 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
442 snprintf(devbuf, sizeof(devbuf) - 1, "/dev/%s", bus_info.udi_devnames[0]);
444 snprintf(devbuf, sizeof(devbuf) - 1, "/dev/%s.00", bus_info.udi_devnames[0]);
447 dfd = open(devbuf, O_RDONLY);
450 printf("usb_host_scan: couldn't open device %s - %s\n", devbuf,
456 if (ioctl(dfd, USB_GET_DEVICEINFO, &dev_info) < 0)
457 printf("usb_host_scan: couldn't get device information for %s - %s\n",
458 devbuf, strerror(errno));
460 // XXX: might need to fixup endianess of word values before copying over
462 vendor_id = dev_info.udi_vendorNo;
463 product_id = dev_info.udi_productNo;
464 class_id = dev_info.udi_class;
465 speed = dev_info.udi_speed;
467 if (strncmp(dev_info.udi_product, "product", 7) != 0)
468 pstrcpy(product_name, sizeof(product_name),
469 dev_info.udi_product);
471 product_name[0] = '\0';
473 ret = func(opaque, bus, address, class_id, vendor_id,
474 product_id, product_name, speed);
489 typedef struct FindDeviceState {
496 static int usb_host_find_device_scan(void *opaque, int bus_num, int addr,
498 int vendor_id, int product_id,
499 const char *product_name, int speed)
501 FindDeviceState *s = opaque;
502 if (vendor_id == s->vendor_id &&
503 product_id == s->product_id) {
504 s->bus_num = bus_num;
514 'bus.addr' (decimal numbers) or
515 'vendor_id:product_id' (hexa numbers) */
516 static int usb_host_find_device(int *pbus_num, int *paddr,
523 p = strchr(devname, '.');
525 *pbus_num = strtoul(devname, NULL, 0);
526 *paddr = strtoul(p + 1, NULL, 0);
529 p = strchr(devname, ':');
531 fs.vendor_id = strtoul(devname, NULL, 16);
532 fs.product_id = strtoul(p + 1, NULL, 16);
533 ret = usb_host_scan(&fs, usb_host_find_device_scan);
535 *pbus_num = fs.bus_num;
543 /**********************/
544 /* USB host device info */
546 struct usb_class_info {
548 const char *class_name;
551 static const struct usb_class_info usb_class_info[] = {
552 { USB_CLASS_AUDIO, "Audio"},
553 { USB_CLASS_COMM, "Communication"},
554 { USB_CLASS_HID, "HID"},
555 { USB_CLASS_HUB, "Hub" },
556 { USB_CLASS_PHYSICAL, "Physical" },
557 { USB_CLASS_PRINTER, "Printer" },
558 { USB_CLASS_MASS_STORAGE, "Storage" },
559 { USB_CLASS_CDC_DATA, "Data" },
560 { USB_CLASS_APP_SPEC, "Application Specific" },
561 { USB_CLASS_VENDOR_SPEC, "Vendor Specific" },
562 { USB_CLASS_STILL_IMAGE, "Still Image" },
563 { USB_CLASS_CSCID, "Smart Card" },
564 { USB_CLASS_CONTENT_SEC, "Content Security" },
568 static const char *usb_class_str(uint8_t class)
570 const struct usb_class_info *p;
571 for (p = usb_class_info; p->class != -1; p++) {
572 if (p->class == class)
575 return p->class_name;
578 static void usb_info_device(Monitor *mon, int bus_num, int addr, int class_id,
579 int vendor_id, int product_id,
580 const char *product_name,
583 const char *class_str, *speed_str;
600 monitor_printf(mon, " Device %d.%d, speed %s Mb/s\n",
601 bus_num, addr, speed_str);
602 class_str = usb_class_str(class_id);
604 monitor_printf(mon, " %s:", class_str);
606 monitor_printf(mon, " Class %02x:", class_id);
607 monitor_printf(mon, " USB device %04x:%04x", vendor_id, product_id);
608 if (product_name[0] != '\0')
609 monitor_printf(mon, ", %s", product_name);
610 monitor_printf(mon, "\n");
613 static int usb_host_info_device(void *opaque,
614 int bus_num, int addr,
616 int vendor_id, int product_id,
617 const char *product_name,
620 Monitor *mon = opaque;
622 usb_info_device(mon, bus_num, addr, class_id, vendor_id, product_id,
623 product_name, speed);
627 void usb_host_info(Monitor *mon)
629 usb_host_scan(mon, usb_host_info_device);
633 int usb_host_device_close(const char *devname)