3 * Copyright (c) 2008-2009 Hans Petter Selasky. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #include <sys/queue.h>
36 #include "libusb20_desc.h"
37 #include "libusb20_int.h"
42 return (LIBUSB20_ERROR_NOT_SUPPORTED);
52 dummy_callback(struct libusb20_transfer *xfer)
55 switch (libusb20_tr_get_status(xfer)) {
56 case LIBUSB20_TRANSFER_START:
57 libusb20_tr_submit(xfer);
60 /* complete or error */
66 #define dummy_get_config_desc_full (void *)dummy_int
67 #define dummy_get_config_index (void *)dummy_int
68 #define dummy_set_config_index (void *)dummy_int
69 #define dummy_set_alt_index (void *)dummy_int
70 #define dummy_reset_device (void *)dummy_int
71 #define dummy_check_connected (void *)dummy_int
72 #define dummy_set_power_mode (void *)dummy_int
73 #define dummy_get_power_mode (void *)dummy_int
74 #define dummy_get_port_path (void *)dummy_int
75 #define dummy_get_power_usage (void *)dummy_int
76 #define dummy_kernel_driver_active (void *)dummy_int
77 #define dummy_detach_kernel_driver (void *)dummy_int
78 #define dummy_do_request_sync (void *)dummy_int
79 #define dummy_tr_open (void *)dummy_int
80 #define dummy_tr_close (void *)dummy_int
81 #define dummy_tr_clear_stall_sync (void *)dummy_int
82 #define dummy_process (void *)dummy_int
83 #define dummy_dev_info (void *)dummy_int
84 #define dummy_dev_get_iface_driver (void *)dummy_int
86 #define dummy_tr_submit (void *)dummy_void
87 #define dummy_tr_cancel_async (void *)dummy_void
89 static const struct libusb20_device_methods libusb20_dummy_methods = {
90 LIBUSB20_DEVICE(LIBUSB20_DECLARE, dummy)
94 libusb20_tr_callback_wrapper(struct libusb20_transfer *xfer)
100 if (!xfer->is_pending) {
101 xfer->status = LIBUSB20_TRANSFER_START;
103 xfer->is_pending = 0;
106 xfer->callback(xfer);
108 if (xfer->is_restart) {
109 xfer->is_restart = 0;
112 if (xfer->is_draining &&
113 (!xfer->is_pending)) {
114 xfer->is_draining = 0;
115 xfer->status = LIBUSB20_TRANSFER_DRAINED;
116 xfer->callback(xfer);
122 libusb20_tr_close(struct libusb20_transfer *xfer)
126 if (!xfer->is_opened) {
127 return (LIBUSB20_ERROR_OTHER);
129 error = xfer->pdev->methods->tr_close(xfer);
134 if (xfer->ppBuffer) {
135 free(xfer->ppBuffer);
137 /* reset variable fields in case the transfer is opened again */
141 xfer->is_pending = 0;
143 xfer->is_draining = 0;
144 xfer->is_restart = 0;
151 xfer->maxTotalLength = 0;
152 xfer->maxPacketLen = 0;
157 libusb20_tr_open(struct libusb20_transfer *xfer, uint32_t MaxBufSize,
158 uint32_t MaxFrameCount, uint8_t ep_no)
165 return (LIBUSB20_ERROR_BUSY);
166 if (MaxFrameCount & LIBUSB20_MAX_FRAME_PRE_SCALE) {
167 MaxFrameCount &= ~LIBUSB20_MAX_FRAME_PRE_SCALE;
169 * The kernel can setup 8 times more frames when
170 * pre-scaling ISOCHRONOUS transfers. Make sure the
171 * length and pointer buffers are big enough:
178 if (MaxFrameCount == 0)
179 return (LIBUSB20_ERROR_INVALID_PARAM);
181 xfer->maxFrames = MaxFrameCount;
183 size = MaxFrameCount * sizeof(xfer->pLength[0]);
184 xfer->pLength = malloc(size);
185 if (xfer->pLength == NULL) {
186 return (LIBUSB20_ERROR_NO_MEM);
188 memset(xfer->pLength, 0, size);
190 size = MaxFrameCount * sizeof(xfer->ppBuffer[0]);
191 xfer->ppBuffer = malloc(size);
192 if (xfer->ppBuffer == NULL) {
194 return (LIBUSB20_ERROR_NO_MEM);
196 memset(xfer->ppBuffer, 0, size);
199 error = xfer->pdev->methods->tr_open(xfer, MaxBufSize,
200 MaxFrameCount / 8, ep_no, 1);
202 error = xfer->pdev->methods->tr_open(xfer, MaxBufSize,
203 MaxFrameCount, ep_no, 0);
207 free(xfer->ppBuffer);
215 struct libusb20_transfer *
216 libusb20_tr_get_pointer(struct libusb20_device *pdev, uint16_t trIndex)
218 if (trIndex >= pdev->nTransfer) {
221 return (pdev->pTransfer + trIndex);
225 libusb20_tr_get_actual_frames(struct libusb20_transfer *xfer)
227 return (xfer->aFrames);
231 libusb20_tr_get_time_complete(struct libusb20_transfer *xfer)
233 return (xfer->timeComplete);
237 libusb20_tr_get_actual_length(struct libusb20_transfer *xfer)
242 for (x = 0; x != xfer->aFrames; x++) {
243 actlen += xfer->pLength[x];
249 libusb20_tr_get_max_frames(struct libusb20_transfer *xfer)
251 return (xfer->maxFrames);
255 libusb20_tr_get_max_packet_length(struct libusb20_transfer *xfer)
258 * Special Case NOTE: If the packet multiplier is non-zero for
259 * High Speed USB, the value returned is equal to
260 * "wMaxPacketSize * multiplier" !
262 return (xfer->maxPacketLen);
266 libusb20_tr_get_max_total_length(struct libusb20_transfer *xfer)
268 return (xfer->maxTotalLength);
272 libusb20_tr_get_status(struct libusb20_transfer *xfer)
274 return (xfer->status);
278 libusb20_tr_pending(struct libusb20_transfer *xfer)
280 return (xfer->is_pending);
284 libusb20_tr_get_priv_sc0(struct libusb20_transfer *xfer)
286 return (xfer->priv_sc0);
290 libusb20_tr_get_priv_sc1(struct libusb20_transfer *xfer)
292 return (xfer->priv_sc1);
296 libusb20_tr_stop(struct libusb20_transfer *xfer)
298 if (!xfer->is_opened) {
299 /* transfer is not opened */
302 if (!xfer->is_pending) {
303 /* transfer not pending */
306 if (xfer->is_cancel) {
307 /* already cancelling */
310 xfer->is_cancel = 1; /* we are cancelling */
312 xfer->pdev->methods->tr_cancel_async(xfer);
317 libusb20_tr_drain(struct libusb20_transfer *xfer)
319 if (!xfer->is_opened) {
320 /* transfer is not opened */
323 /* make sure that we are cancelling */
324 libusb20_tr_stop(xfer);
326 if (xfer->is_pending) {
327 xfer->is_draining = 1;
333 libusb20_tr_clear_stall_sync(struct libusb20_transfer *xfer)
335 xfer->pdev->methods->tr_clear_stall_sync(xfer);
340 libusb20_tr_set_buffer(struct libusb20_transfer *xfer, void *buffer, uint16_t frIndex)
342 xfer->ppBuffer[frIndex] = libusb20_pass_ptr(buffer);
347 libusb20_tr_set_callback(struct libusb20_transfer *xfer, libusb20_tr_callback_t *cb)
354 libusb20_tr_set_flags(struct libusb20_transfer *xfer, uint8_t flags)
361 libusb20_tr_get_length(struct libusb20_transfer *xfer, uint16_t frIndex)
363 return (xfer->pLength[frIndex]);
367 libusb20_tr_set_length(struct libusb20_transfer *xfer, uint32_t length, uint16_t frIndex)
369 xfer->pLength[frIndex] = length;
374 libusb20_tr_set_priv_sc0(struct libusb20_transfer *xfer, void *sc0)
376 xfer->priv_sc0 = sc0;
381 libusb20_tr_set_priv_sc1(struct libusb20_transfer *xfer, void *sc1)
383 xfer->priv_sc1 = sc1;
388 libusb20_tr_set_timeout(struct libusb20_transfer *xfer, uint32_t timeout)
390 xfer->timeout = timeout;
395 libusb20_tr_set_total_frames(struct libusb20_transfer *xfer, uint32_t nFrames)
397 if (nFrames > xfer->maxFrames) {
398 /* should not happen */
399 nFrames = xfer->maxFrames;
401 xfer->nFrames = nFrames;
406 libusb20_tr_setup_bulk(struct libusb20_transfer *xfer, void *pBuf, uint32_t length, uint32_t timeout)
408 xfer->ppBuffer[0] = libusb20_pass_ptr(pBuf);
409 xfer->pLength[0] = length;
410 xfer->timeout = timeout;
416 libusb20_tr_setup_control(struct libusb20_transfer *xfer, void *psetup, void *pBuf, uint32_t timeout)
420 xfer->ppBuffer[0] = libusb20_pass_ptr(psetup);
421 xfer->pLength[0] = 8; /* fixed */
422 xfer->timeout = timeout;
424 len = ((uint8_t *)psetup)[6] | (((uint8_t *)psetup)[7] << 8);
428 xfer->ppBuffer[1] = libusb20_pass_ptr(pBuf);
429 xfer->pLength[1] = len;
437 libusb20_tr_setup_intr(struct libusb20_transfer *xfer, void *pBuf, uint32_t length, uint32_t timeout)
439 xfer->ppBuffer[0] = libusb20_pass_ptr(pBuf);
440 xfer->pLength[0] = length;
441 xfer->timeout = timeout;
447 libusb20_tr_setup_isoc(struct libusb20_transfer *xfer, void *pBuf, uint32_t length, uint16_t frIndex)
449 if (frIndex >= xfer->maxFrames) {
450 /* should not happen */
453 xfer->ppBuffer[frIndex] = libusb20_pass_ptr(pBuf);
454 xfer->pLength[frIndex] = length;
459 libusb20_tr_bulk_intr_sync(struct libusb20_transfer *xfer,
460 void *pbuf, uint32_t length, uint32_t *pactlen,
463 struct libusb20_device *pdev = xfer->pdev;
464 uint32_t transfer_max;
465 uint32_t transfer_act;
468 /* set some sensible default value */
472 /* check for error condition */
473 if (libusb20_tr_pending(xfer))
474 return (LIBUSB20_ERROR_OTHER);
477 /* compute maximum transfer length */
479 libusb20_tr_get_max_total_length(xfer);
481 if (transfer_max > length)
482 transfer_max = length;
484 /* setup bulk or interrupt transfer */
485 libusb20_tr_setup_bulk(xfer, pbuf,
486 transfer_max, timeout);
488 /* start the transfer */
489 libusb20_tr_start(xfer);
491 /* wait for transfer completion */
492 while (libusb20_dev_process(pdev) == 0) {
494 if (libusb20_tr_pending(xfer) == 0)
497 libusb20_dev_wait_process(pdev, -1);
500 transfer_act = libusb20_tr_get_actual_length(xfer);
502 /* update actual length, if any */
504 pactlen[0] += transfer_act;
506 /* check transfer status */
507 retval = libusb20_tr_get_status(xfer);
511 /* check for short transfer */
512 if (transfer_act != transfer_max)
515 /* update buffer pointer and length */
516 pbuf = ((uint8_t *)pbuf) + transfer_max;
517 length = length - transfer_max;
519 } while (length != 0);
525 libusb20_tr_submit(struct libusb20_transfer *xfer)
527 if (!xfer->is_opened) {
528 /* transfer is not opened */
531 if (xfer->is_pending) {
532 /* should not happen */
535 xfer->is_pending = 1; /* we are pending */
536 xfer->is_cancel = 0; /* not cancelling */
537 xfer->is_restart = 0; /* not restarting */
539 xfer->pdev->methods->tr_submit(xfer);
544 libusb20_tr_start(struct libusb20_transfer *xfer)
546 if (!xfer->is_opened) {
547 /* transfer is not opened */
550 if (xfer->is_pending) {
551 if (xfer->is_cancel) {
552 /* cancelling - restart */
553 xfer->is_restart = 1;
555 /* transfer not pending */
558 /* get into the callback */
559 libusb20_tr_callback_wrapper(xfer);
563 /* USB device operations */
566 libusb20_dev_close(struct libusb20_device *pdev)
568 struct libusb20_transfer *xfer;
572 if (!pdev->is_opened) {
573 return (LIBUSB20_ERROR_OTHER);
575 for (x = 0; x != pdev->nTransfer; x++) {
576 xfer = pdev->pTransfer + x;
578 if (!xfer->is_opened) {
579 /* transfer is not opened */
583 libusb20_tr_drain(xfer);
585 libusb20_tr_close(xfer);
588 if (pdev->pTransfer != NULL) {
589 free(pdev->pTransfer);
590 pdev->pTransfer = NULL;
592 error = pdev->beMethods->close_device(pdev);
594 pdev->methods = &libusb20_dummy_methods;
599 * The following variable is only used by the libusb v0.1
602 pdev->claimed_interface = 0;
605 * The following variable is only used by the libusb v1.0
608 pdev->auto_detach = 0;
614 libusb20_dev_detach_kernel_driver(struct libusb20_device *pdev, uint8_t ifaceIndex)
618 error = pdev->methods->detach_kernel_driver(pdev, ifaceIndex);
622 struct LIBUSB20_DEVICE_DESC_DECODED *
623 libusb20_dev_get_device_desc(struct libusb20_device *pdev)
625 return (&(pdev->ddesc));
629 libusb20_dev_get_fd(struct libusb20_device *pdev)
635 libusb20_dev_kernel_driver_active(struct libusb20_device *pdev, uint8_t ifaceIndex)
639 error = pdev->methods->kernel_driver_active(pdev, ifaceIndex);
644 libusb20_dev_open(struct libusb20_device *pdev, uint16_t nTransferMax)
646 struct libusb20_transfer *xfer;
651 if (pdev->is_opened) {
652 return (LIBUSB20_ERROR_BUSY);
654 if (nTransferMax >= 256) {
655 return (LIBUSB20_ERROR_INVALID_PARAM);
656 } else if (nTransferMax != 0) {
657 size = sizeof(pdev->pTransfer[0]) * nTransferMax;
658 pdev->pTransfer = malloc(size);
659 if (pdev->pTransfer == NULL) {
660 return (LIBUSB20_ERROR_NO_MEM);
662 memset(pdev->pTransfer, 0, size);
664 /* initialise all transfers */
665 for (x = 0; x != nTransferMax; x++) {
667 xfer = pdev->pTransfer + x;
671 xfer->callback = &dummy_callback;
674 /* set "nTransfer" early */
675 pdev->nTransfer = nTransferMax;
677 error = pdev->beMethods->open_device(pdev, nTransferMax);
680 if (pdev->pTransfer != NULL) {
681 free(pdev->pTransfer);
682 pdev->pTransfer = NULL;
685 pdev->file_ctrl = -1;
694 libusb20_dev_reset(struct libusb20_device *pdev)
698 error = pdev->methods->reset_device(pdev);
703 libusb20_dev_check_connected(struct libusb20_device *pdev)
707 error = pdev->methods->check_connected(pdev);
712 libusb20_dev_set_power_mode(struct libusb20_device *pdev, uint8_t power_mode)
716 error = pdev->methods->set_power_mode(pdev, power_mode);
721 libusb20_dev_get_power_mode(struct libusb20_device *pdev)
726 error = pdev->methods->get_power_mode(pdev, &power_mode);
728 power_mode = LIBUSB20_POWER_ON; /* fake power mode */
733 libusb20_dev_get_port_path(struct libusb20_device *pdev, uint8_t *buf, uint8_t bufsize)
735 return (pdev->methods->get_port_path(pdev, buf, bufsize));
739 libusb20_dev_get_power_usage(struct libusb20_device *pdev)
742 uint16_t power_usage;
744 error = pdev->methods->get_power_usage(pdev, &power_usage);
747 return (power_usage);
751 libusb20_dev_set_alt_index(struct libusb20_device *pdev, uint8_t ifaceIndex, uint8_t altIndex)
755 error = pdev->methods->set_alt_index(pdev, ifaceIndex, altIndex);
760 libusb20_dev_set_config_index(struct libusb20_device *pdev, uint8_t configIndex)
764 error = pdev->methods->set_config_index(pdev, configIndex);
769 libusb20_dev_request_sync(struct libusb20_device *pdev,
770 struct LIBUSB20_CONTROL_SETUP_DECODED *setup, void *data,
771 uint16_t *pactlen, uint32_t timeout, uint8_t flags)
775 error = pdev->methods->do_request_sync(pdev,
776 setup, data, pactlen, timeout, flags);
781 libusb20_dev_req_string_sync(struct libusb20_device *pdev,
782 uint8_t str_index, uint16_t langid, void *ptr, uint16_t len)
784 struct LIBUSB20_CONTROL_SETUP_DECODED req;
788 /* make sure memory is initialised */
793 return (LIBUSB20_ERROR_INVALID_PARAM);
795 LIBUSB20_INIT(LIBUSB20_CONTROL_SETUP, &req);
798 * We need to read the USB string in two steps else some USB
799 * devices will complain.
802 LIBUSB20_REQUEST_TYPE_STANDARD |
803 LIBUSB20_RECIPIENT_DEVICE |
804 LIBUSB20_ENDPOINT_IN;
805 req.bRequest = LIBUSB20_REQUEST_GET_DESCRIPTOR;
806 req.wValue = (LIBUSB20_DT_STRING << 8) | str_index;
808 req.wLength = 4; /* bytes */
810 error = libusb20_dev_request_sync(pdev, &req,
811 ptr, NULL, 1000, LIBUSB20_TRANSFER_SINGLE_SHORT_NOT_OK);
813 /* try to request full string */
817 /* extract length and request full string */
818 req.wLength = *(uint8_t *)ptr;
819 flags = LIBUSB20_TRANSFER_SINGLE_SHORT_NOT_OK;
821 if (req.wLength > len) {
822 /* partial string read */
825 error = libusb20_dev_request_sync(pdev, &req, ptr, NULL, 1000, flags);
829 if (((uint8_t *)ptr)[1] != LIBUSB20_DT_STRING)
830 return (LIBUSB20_ERROR_OTHER);
831 return (0); /* success */
835 libusb20_dev_req_string_simple_sync(struct libusb20_device *pdev,
836 uint8_t str_index, void *ptr, uint16_t len)
847 /* the following code derives from the FreeBSD USB kernel */
849 if ((len < 1) || (ptr == NULL)) {
850 /* too short buffer */
851 return (LIBUSB20_ERROR_INVALID_PARAM);
853 error = libusb20_dev_req_string_sync(pdev,
854 0, 0, temp, sizeof(temp));
856 *(uint8_t *)ptr = 0; /* zero terminate */
859 langid = temp[2] | (temp[3] << 8);
861 error = libusb20_dev_req_string_sync(pdev, str_index,
862 langid, temp, sizeof(temp));
864 *(uint8_t *)ptr = 0; /* zero terminate */
868 /* string length is too short */
869 *(uint8_t *)ptr = 0; /* zero terminate */
870 return (LIBUSB20_ERROR_OTHER);
872 /* reserve one byte for terminating zero */
875 /* find maximum length */
876 n = (temp[0] / 2) - 1;
880 /* reset swap state */
883 /* setup output buffer pointer */
886 /* convert and filter */
887 for (i = 0; (i != n); i++) {
888 c = temp[(2 * i) + 2] | (temp[(2 * i) + 3] << 8);
890 /* convert from Unicode, handle buggy strings */
891 if (((c & 0xff00) == 0) && (swap & 1)) {
892 /* Little Endian, default */
895 } else if (((c & 0x00ff) == 0) && (swap & 2)) {
900 /* skip invalid character */
904 * Filter by default - we don't allow greater and less than
905 * signs because they might confuse the dmesg printouts!
907 if ((*buf == '<') || (*buf == '>') || (!isprint(*buf))) {
908 /* skip invalid character */
913 *buf = 0; /* zero terminate string */
918 struct libusb20_config *
919 libusb20_dev_alloc_config(struct libusb20_device *pdev, uint8_t configIndex)
921 struct libusb20_config *retval = NULL;
927 if (!pdev->is_opened) {
928 error = libusb20_dev_open(pdev, 0);
936 error = pdev->methods->get_config_desc_full(pdev,
937 &ptr, &len, configIndex);
942 /* parse new config descriptor */
943 retval = libusb20_parse_config_desc(ptr);
945 /* free config descriptor */
950 error = libusb20_dev_close(pdev);
955 struct libusb20_device *
956 libusb20_dev_alloc(void)
958 struct libusb20_device *pdev;
960 pdev = malloc(sizeof(*pdev));
964 memset(pdev, 0, sizeof(*pdev));
967 pdev->file_ctrl = -1;
968 pdev->methods = &libusb20_dummy_methods;
973 libusb20_dev_get_config_index(struct libusb20_device *pdev)
979 if (!pdev->is_opened) {
980 error = libusb20_dev_open(pdev, 0);
990 error = pdev->methods->get_config_index(pdev, &cfg_index);
992 cfg_index = 0xFF; /* current config index */
994 if (libusb20_dev_close(pdev)) {
1002 libusb20_dev_get_mode(struct libusb20_device *pdev)
1004 return (pdev->usb_mode);
1008 libusb20_dev_get_speed(struct libusb20_device *pdev)
1010 return (pdev->usb_speed);
1013 /* if this function returns an error, the device is gone */
1015 libusb20_dev_process(struct libusb20_device *pdev)
1019 error = pdev->methods->process(pdev);
1024 libusb20_dev_wait_process(struct libusb20_device *pdev, int timeout)
1026 struct pollfd pfd[1];
1028 if (!pdev->is_opened) {
1031 pfd[0].fd = pdev->file;
1032 pfd[0].events = (POLLIN | POLLOUT | POLLRDNORM | POLLWRNORM);
1035 if (poll(pfd, 1, timeout)) {
1036 /* ignore any error */
1042 libusb20_dev_free(struct libusb20_device *pdev)
1048 if (pdev->is_opened) {
1049 if (libusb20_dev_close(pdev)) {
1050 /* ignore any errors */
1058 libusb20_dev_get_info(struct libusb20_device *pdev,
1059 struct usb_device_info *pinfo)
1062 return (LIBUSB20_ERROR_INVALID_PARAM);
1064 return (pdev->beMethods->dev_get_info(pdev, pinfo));
1068 libusb20_dev_get_backend_name(struct libusb20_device *pdev)
1070 return (pdev->beMethods->get_backend_name());
1074 libusb20_dev_get_desc(struct libusb20_device *pdev)
1076 return (pdev->usb_desc);
1080 libusb20_dev_set_debug(struct libusb20_device *pdev, int debug)
1082 pdev->debug = debug;
1087 libusb20_dev_get_debug(struct libusb20_device *pdev)
1089 return (pdev->debug);
1093 libusb20_dev_get_address(struct libusb20_device *pdev)
1095 return (pdev->device_address);
1099 libusb20_dev_get_parent_address(struct libusb20_device *pdev)
1101 return (pdev->parent_address);
1105 libusb20_dev_get_parent_port(struct libusb20_device *pdev)
1107 return (pdev->parent_port);
1111 libusb20_dev_get_bus_number(struct libusb20_device *pdev)
1113 return (pdev->bus_number);
1117 libusb20_dev_get_iface_desc(struct libusb20_device *pdev,
1118 uint8_t iface_index, char *buf, uint8_t len)
1120 if ((buf == NULL) || (len == 0))
1121 return (LIBUSB20_ERROR_INVALID_PARAM);
1123 buf[0] = 0; /* set default string value */
1125 return (pdev->beMethods->dev_get_iface_desc(
1126 pdev, iface_index, buf, len));
1129 /* USB backend operations */
1132 libusb20_be_get_dev_quirk(struct libusb20_backend *pbe,
1133 uint16_t quirk_index, struct libusb20_quirk *pq)
1135 return (pbe->methods->root_get_dev_quirk(pbe, quirk_index, pq));
1139 libusb20_be_get_quirk_name(struct libusb20_backend *pbe,
1140 uint16_t quirk_index, struct libusb20_quirk *pq)
1142 return (pbe->methods->root_get_quirk_name(pbe, quirk_index, pq));
1146 libusb20_be_add_dev_quirk(struct libusb20_backend *pbe,
1147 struct libusb20_quirk *pq)
1149 return (pbe->methods->root_add_dev_quirk(pbe, pq));
1153 libusb20_be_remove_dev_quirk(struct libusb20_backend *pbe,
1154 struct libusb20_quirk *pq)
1156 return (pbe->methods->root_remove_dev_quirk(pbe, pq));
1160 libusb20_be_set_template(struct libusb20_backend *pbe, int temp)
1162 return (pbe->methods->root_set_template(pbe, temp));
1166 libusb20_be_get_template(struct libusb20_backend *pbe, int *ptemp)
1173 return (pbe->methods->root_get_template(pbe, ptemp));
1176 struct libusb20_device *
1177 libusb20_be_device_foreach(struct libusb20_backend *pbe, struct libusb20_device *pdev)
1181 } else if (pdev == NULL) {
1182 pdev = TAILQ_FIRST(&(pbe->usb_devs));
1184 pdev = TAILQ_NEXT(pdev, dev_entry);
1189 struct libusb20_backend *
1190 libusb20_be_alloc(const struct libusb20_backend_methods *methods)
1192 struct libusb20_backend *pbe;
1194 pbe = malloc(sizeof(*pbe));
1198 memset(pbe, 0, sizeof(*pbe));
1200 TAILQ_INIT(&(pbe->usb_devs));
1202 pbe->methods = methods; /* set backend methods */
1204 /* do the initial device scan */
1205 if (pbe->methods->init_backend) {
1206 pbe->methods->init_backend(pbe);
1211 struct libusb20_backend *
1212 libusb20_be_alloc_linux(void)
1214 struct libusb20_backend *pbe;
1217 pbe = libusb20_be_alloc(&libusb20_linux_backend);
1224 struct libusb20_backend *
1225 libusb20_be_alloc_ugen20(void)
1227 struct libusb20_backend *pbe;
1229 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
1230 pbe = libusb20_be_alloc(&libusb20_ugen20_backend);
1237 struct libusb20_backend *
1238 libusb20_be_alloc_default(void)
1240 struct libusb20_backend *pbe;
1242 pbe = libusb20_be_alloc_linux();
1246 pbe = libusb20_be_alloc_ugen20();
1250 return (NULL); /* no backend found */
1254 libusb20_be_free(struct libusb20_backend *pbe)
1256 struct libusb20_device *pdev;
1262 while ((pdev = libusb20_be_device_foreach(pbe, NULL))) {
1263 libusb20_be_dequeue_device(pbe, pdev);
1264 libusb20_dev_free(pdev);
1266 if (pbe->methods->exit_backend) {
1267 pbe->methods->exit_backend(pbe);
1274 libusb20_be_enqueue_device(struct libusb20_backend *pbe, struct libusb20_device *pdev)
1276 pdev->beMethods = pbe->methods; /* copy backend methods */
1277 TAILQ_INSERT_TAIL(&(pbe->usb_devs), pdev, dev_entry);
1281 libusb20_be_dequeue_device(struct libusb20_backend *pbe,
1282 struct libusb20_device *pdev)
1284 TAILQ_REMOVE(&(pbe->usb_devs), pdev, dev_entry);
1288 libusb20_strerror(int code)
1291 case LIBUSB20_SUCCESS:
1293 case LIBUSB20_ERROR_IO:
1294 return ("I/O error");
1295 case LIBUSB20_ERROR_INVALID_PARAM:
1296 return ("Invalid parameter");
1297 case LIBUSB20_ERROR_ACCESS:
1298 return ("Permissions error");
1299 case LIBUSB20_ERROR_NO_DEVICE:
1300 return ("No device");
1301 case LIBUSB20_ERROR_NOT_FOUND:
1302 return ("Not found");
1303 case LIBUSB20_ERROR_BUSY:
1304 return ("Device busy");
1305 case LIBUSB20_ERROR_TIMEOUT:
1307 case LIBUSB20_ERROR_OVERFLOW:
1308 return ("Overflow");
1309 case LIBUSB20_ERROR_PIPE:
1310 return ("Pipe error");
1311 case LIBUSB20_ERROR_INTERRUPTED:
1312 return ("Interrupted");
1313 case LIBUSB20_ERROR_NO_MEM:
1314 return ("Out of memory");
1315 case LIBUSB20_ERROR_NOT_SUPPORTED:
1316 return ("Not supported");
1317 case LIBUSB20_ERROR_OTHER:
1318 return ("Other error");
1320 return ("Unknown error");
1325 libusb20_error_name(int code)
1328 case LIBUSB20_SUCCESS:
1329 return ("LIBUSB20_SUCCESS");
1330 case LIBUSB20_ERROR_IO:
1331 return ("LIBUSB20_ERROR_IO");
1332 case LIBUSB20_ERROR_INVALID_PARAM:
1333 return ("LIBUSB20_ERROR_INVALID_PARAM");
1334 case LIBUSB20_ERROR_ACCESS:
1335 return ("LIBUSB20_ERROR_ACCESS");
1336 case LIBUSB20_ERROR_NO_DEVICE:
1337 return ("LIBUSB20_ERROR_NO_DEVICE");
1338 case LIBUSB20_ERROR_NOT_FOUND:
1339 return ("LIBUSB20_ERROR_NOT_FOUND");
1340 case LIBUSB20_ERROR_BUSY:
1341 return ("LIBUSB20_ERROR_BUSY");
1342 case LIBUSB20_ERROR_TIMEOUT:
1343 return ("LIBUSB20_ERROR_TIMEOUT");
1344 case LIBUSB20_ERROR_OVERFLOW:
1345 return ("LIBUSB20_ERROR_OVERFLOW");
1346 case LIBUSB20_ERROR_PIPE:
1347 return ("LIBUSB20_ERROR_PIPE");
1348 case LIBUSB20_ERROR_INTERRUPTED:
1349 return ("LIBUSB20_ERROR_INTERRUPTED");
1350 case LIBUSB20_ERROR_NO_MEM:
1351 return ("LIBUSB20_ERROR_NO_MEM");
1352 case LIBUSB20_ERROR_NOT_SUPPORTED:
1353 return ("LIBUSB20_ERROR_NOT_SUPPORTED");
1354 case LIBUSB20_ERROR_OTHER:
1355 return ("LIBUSB20_ERROR_OTHER");
1357 return ("LIBUSB20_ERROR_UNKNOWN");