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_kernel_driver_active (void *)dummy_int
75 #define dummy_detach_kernel_driver (void *)dummy_int
76 #define dummy_do_request_sync (void *)dummy_int
77 #define dummy_tr_open (void *)dummy_int
78 #define dummy_tr_close (void *)dummy_int
79 #define dummy_tr_clear_stall_sync (void *)dummy_int
80 #define dummy_process (void *)dummy_int
81 #define dummy_dev_info (void *)dummy_int
82 #define dummy_dev_get_iface_driver (void *)dummy_int
84 #define dummy_tr_submit (void *)dummy_void
85 #define dummy_tr_cancel_async (void *)dummy_void
87 static const struct libusb20_device_methods libusb20_dummy_methods = {
88 LIBUSB20_DEVICE(LIBUSB20_DECLARE, dummy)
92 libusb20_tr_callback_wrapper(struct libusb20_transfer *xfer)
98 if (!xfer->is_pending) {
99 xfer->status = LIBUSB20_TRANSFER_START;
101 xfer->is_pending = 0;
104 xfer->callback(xfer);
106 if (xfer->is_restart) {
107 xfer->is_restart = 0;
110 if (xfer->is_draining &&
111 (!xfer->is_pending)) {
112 xfer->is_draining = 0;
113 xfer->status = LIBUSB20_TRANSFER_DRAINED;
114 xfer->callback(xfer);
120 libusb20_tr_close(struct libusb20_transfer *xfer)
124 if (!xfer->is_opened) {
125 return (LIBUSB20_ERROR_OTHER);
127 error = xfer->pdev->methods->tr_close(xfer);
132 if (xfer->ppBuffer) {
133 free(xfer->ppBuffer);
135 /* reset variable fields in case the transfer is opened again */
139 xfer->is_pending = 0;
141 xfer->is_draining = 0;
142 xfer->is_restart = 0;
149 xfer->maxTotalLength = 0;
150 xfer->maxPacketLen = 0;
155 libusb20_tr_open(struct libusb20_transfer *xfer, uint32_t MaxBufSize,
156 uint32_t MaxFrameCount, uint8_t ep_no)
163 return (LIBUSB20_ERROR_BUSY);
164 if (MaxFrameCount & LIBUSB20_MAX_FRAME_PRE_SCALE) {
165 MaxFrameCount &= ~LIBUSB20_MAX_FRAME_PRE_SCALE;
167 * The kernel can setup 8 times more frames when
168 * pre-scaling ISOCHRONOUS transfers. Make sure the
169 * length and pointer buffers are big enough:
176 if (MaxFrameCount == 0)
177 return (LIBUSB20_ERROR_INVALID_PARAM);
179 xfer->maxFrames = MaxFrameCount;
181 size = MaxFrameCount * sizeof(xfer->pLength[0]);
182 xfer->pLength = malloc(size);
183 if (xfer->pLength == NULL) {
184 return (LIBUSB20_ERROR_NO_MEM);
186 memset(xfer->pLength, 0, size);
188 size = MaxFrameCount * sizeof(xfer->ppBuffer[0]);
189 xfer->ppBuffer = malloc(size);
190 if (xfer->ppBuffer == NULL) {
192 return (LIBUSB20_ERROR_NO_MEM);
194 memset(xfer->ppBuffer, 0, size);
197 error = xfer->pdev->methods->tr_open(xfer, MaxBufSize,
198 MaxFrameCount / 8, ep_no, 1);
200 error = xfer->pdev->methods->tr_open(xfer, MaxBufSize,
201 MaxFrameCount, ep_no, 0);
205 free(xfer->ppBuffer);
213 struct libusb20_transfer *
214 libusb20_tr_get_pointer(struct libusb20_device *pdev, uint16_t trIndex)
216 if (trIndex >= pdev->nTransfer) {
219 return (pdev->pTransfer + trIndex);
223 libusb20_tr_get_actual_frames(struct libusb20_transfer *xfer)
225 return (xfer->aFrames);
229 libusb20_tr_get_time_complete(struct libusb20_transfer *xfer)
231 return (xfer->timeComplete);
235 libusb20_tr_get_actual_length(struct libusb20_transfer *xfer)
240 for (x = 0; x != xfer->aFrames; x++) {
241 actlen += xfer->pLength[x];
247 libusb20_tr_get_max_frames(struct libusb20_transfer *xfer)
249 return (xfer->maxFrames);
253 libusb20_tr_get_max_packet_length(struct libusb20_transfer *xfer)
256 * Special Case NOTE: If the packet multiplier is non-zero for
257 * High Speed USB, the value returned is equal to
258 * "wMaxPacketSize * multiplier" !
260 return (xfer->maxPacketLen);
264 libusb20_tr_get_max_total_length(struct libusb20_transfer *xfer)
266 return (xfer->maxTotalLength);
270 libusb20_tr_get_status(struct libusb20_transfer *xfer)
272 return (xfer->status);
276 libusb20_tr_pending(struct libusb20_transfer *xfer)
278 return (xfer->is_pending);
282 libusb20_tr_get_priv_sc0(struct libusb20_transfer *xfer)
284 return (xfer->priv_sc0);
288 libusb20_tr_get_priv_sc1(struct libusb20_transfer *xfer)
290 return (xfer->priv_sc1);
294 libusb20_tr_stop(struct libusb20_transfer *xfer)
296 if (!xfer->is_opened) {
297 /* transfer is not opened */
300 if (!xfer->is_pending) {
301 /* transfer not pending */
304 if (xfer->is_cancel) {
305 /* already cancelling */
308 xfer->is_cancel = 1; /* we are cancelling */
310 xfer->pdev->methods->tr_cancel_async(xfer);
315 libusb20_tr_drain(struct libusb20_transfer *xfer)
317 if (!xfer->is_opened) {
318 /* transfer is not opened */
321 /* make sure that we are cancelling */
322 libusb20_tr_stop(xfer);
324 if (xfer->is_pending) {
325 xfer->is_draining = 1;
331 libusb20_tr_clear_stall_sync(struct libusb20_transfer *xfer)
333 xfer->pdev->methods->tr_clear_stall_sync(xfer);
338 libusb20_tr_set_buffer(struct libusb20_transfer *xfer, void *buffer, uint16_t frIndex)
340 xfer->ppBuffer[frIndex] = libusb20_pass_ptr(buffer);
345 libusb20_tr_set_callback(struct libusb20_transfer *xfer, libusb20_tr_callback_t *cb)
352 libusb20_tr_set_flags(struct libusb20_transfer *xfer, uint8_t flags)
359 libusb20_tr_get_length(struct libusb20_transfer *xfer, uint16_t frIndex)
361 return (xfer->pLength[frIndex]);
365 libusb20_tr_set_length(struct libusb20_transfer *xfer, uint32_t length, uint16_t frIndex)
367 xfer->pLength[frIndex] = length;
372 libusb20_tr_set_priv_sc0(struct libusb20_transfer *xfer, void *sc0)
374 xfer->priv_sc0 = sc0;
379 libusb20_tr_set_priv_sc1(struct libusb20_transfer *xfer, void *sc1)
381 xfer->priv_sc1 = sc1;
386 libusb20_tr_set_timeout(struct libusb20_transfer *xfer, uint32_t timeout)
388 xfer->timeout = timeout;
393 libusb20_tr_set_total_frames(struct libusb20_transfer *xfer, uint32_t nFrames)
395 if (nFrames > xfer->maxFrames) {
396 /* should not happen */
397 nFrames = xfer->maxFrames;
399 xfer->nFrames = nFrames;
404 libusb20_tr_setup_bulk(struct libusb20_transfer *xfer, void *pBuf, uint32_t length, uint32_t timeout)
406 xfer->ppBuffer[0] = libusb20_pass_ptr(pBuf);
407 xfer->pLength[0] = length;
408 xfer->timeout = timeout;
414 libusb20_tr_setup_control(struct libusb20_transfer *xfer, void *psetup, void *pBuf, uint32_t timeout)
418 xfer->ppBuffer[0] = libusb20_pass_ptr(psetup);
419 xfer->pLength[0] = 8; /* fixed */
420 xfer->timeout = timeout;
422 len = ((uint8_t *)psetup)[6] | (((uint8_t *)psetup)[7] << 8);
426 xfer->ppBuffer[1] = libusb20_pass_ptr(pBuf);
427 xfer->pLength[1] = len;
435 libusb20_tr_setup_intr(struct libusb20_transfer *xfer, void *pBuf, uint32_t length, uint32_t timeout)
437 xfer->ppBuffer[0] = libusb20_pass_ptr(pBuf);
438 xfer->pLength[0] = length;
439 xfer->timeout = timeout;
445 libusb20_tr_setup_isoc(struct libusb20_transfer *xfer, void *pBuf, uint32_t length, uint16_t frIndex)
447 if (frIndex >= xfer->maxFrames) {
448 /* should not happen */
451 xfer->ppBuffer[frIndex] = libusb20_pass_ptr(pBuf);
452 xfer->pLength[frIndex] = length;
457 libusb20_tr_bulk_intr_sync(struct libusb20_transfer *xfer,
458 void *pbuf, uint32_t length, uint32_t *pactlen,
461 struct libusb20_device *pdev = xfer->pdev;
462 uint32_t transfer_max;
463 uint32_t transfer_act;
466 /* set some sensible default value */
470 /* check for error condition */
471 if (libusb20_tr_pending(xfer))
472 return (LIBUSB20_ERROR_OTHER);
475 /* compute maximum transfer length */
477 libusb20_tr_get_max_total_length(xfer);
479 if (transfer_max > length)
480 transfer_max = length;
482 /* setup bulk or interrupt transfer */
483 libusb20_tr_setup_bulk(xfer, pbuf,
484 transfer_max, timeout);
486 /* start the transfer */
487 libusb20_tr_start(xfer);
489 /* wait for transfer completion */
490 while (libusb20_dev_process(pdev) == 0) {
492 if (libusb20_tr_pending(xfer) == 0)
495 libusb20_dev_wait_process(pdev, -1);
498 transfer_act = libusb20_tr_get_actual_length(xfer);
500 /* update actual length, if any */
502 pactlen[0] += transfer_act;
504 /* check transfer status */
505 retval = libusb20_tr_get_status(xfer);
509 /* check for short transfer */
510 if (transfer_act != transfer_max)
513 /* update buffer pointer and length */
514 pbuf = ((uint8_t *)pbuf) + transfer_max;
515 length = length - transfer_max;
517 } while (length != 0);
523 libusb20_tr_submit(struct libusb20_transfer *xfer)
525 if (!xfer->is_opened) {
526 /* transfer is not opened */
529 if (xfer->is_pending) {
530 /* should not happen */
533 xfer->is_pending = 1; /* we are pending */
534 xfer->is_cancel = 0; /* not cancelling */
535 xfer->is_restart = 0; /* not restarting */
537 xfer->pdev->methods->tr_submit(xfer);
542 libusb20_tr_start(struct libusb20_transfer *xfer)
544 if (!xfer->is_opened) {
545 /* transfer is not opened */
548 if (xfer->is_pending) {
549 if (xfer->is_cancel) {
550 /* cancelling - restart */
551 xfer->is_restart = 1;
553 /* transfer not pending */
556 /* get into the callback */
557 libusb20_tr_callback_wrapper(xfer);
561 /* USB device operations */
564 libusb20_dev_close(struct libusb20_device *pdev)
566 struct libusb20_transfer *xfer;
570 if (!pdev->is_opened) {
571 return (LIBUSB20_ERROR_OTHER);
573 for (x = 0; x != pdev->nTransfer; x++) {
574 xfer = pdev->pTransfer + x;
576 if (!xfer->is_opened) {
577 /* transfer is not opened */
581 libusb20_tr_drain(xfer);
583 libusb20_tr_close(xfer);
586 if (pdev->pTransfer != NULL) {
587 free(pdev->pTransfer);
588 pdev->pTransfer = NULL;
590 error = pdev->beMethods->close_device(pdev);
592 pdev->methods = &libusb20_dummy_methods;
597 * The following variable is only used by the libusb v0.1
600 pdev->claimed_interface = 0;
606 libusb20_dev_detach_kernel_driver(struct libusb20_device *pdev, uint8_t ifaceIndex)
610 error = pdev->methods->detach_kernel_driver(pdev, ifaceIndex);
614 struct LIBUSB20_DEVICE_DESC_DECODED *
615 libusb20_dev_get_device_desc(struct libusb20_device *pdev)
617 return (&(pdev->ddesc));
621 libusb20_dev_get_fd(struct libusb20_device *pdev)
627 libusb20_dev_kernel_driver_active(struct libusb20_device *pdev, uint8_t ifaceIndex)
631 error = pdev->methods->kernel_driver_active(pdev, ifaceIndex);
636 libusb20_dev_open(struct libusb20_device *pdev, uint16_t nTransferMax)
638 struct libusb20_transfer *xfer;
643 if (pdev->is_opened) {
644 return (LIBUSB20_ERROR_BUSY);
646 if (nTransferMax >= 256) {
647 return (LIBUSB20_ERROR_INVALID_PARAM);
648 } else if (nTransferMax != 0) {
649 size = sizeof(pdev->pTransfer[0]) * nTransferMax;
650 pdev->pTransfer = malloc(size);
651 if (pdev->pTransfer == NULL) {
652 return (LIBUSB20_ERROR_NO_MEM);
654 memset(pdev->pTransfer, 0, size);
656 /* initialise all transfers */
657 for (x = 0; x != nTransferMax; x++) {
659 xfer = pdev->pTransfer + x;
663 xfer->callback = &dummy_callback;
666 /* set "nTransfer" early */
667 pdev->nTransfer = nTransferMax;
669 error = pdev->beMethods->open_device(pdev, nTransferMax);
672 if (pdev->pTransfer != NULL) {
673 free(pdev->pTransfer);
674 pdev->pTransfer = NULL;
677 pdev->file_ctrl = -1;
686 libusb20_dev_reset(struct libusb20_device *pdev)
690 error = pdev->methods->reset_device(pdev);
695 libusb20_dev_check_connected(struct libusb20_device *pdev)
699 error = pdev->methods->check_connected(pdev);
704 libusb20_dev_set_power_mode(struct libusb20_device *pdev, uint8_t power_mode)
708 error = pdev->methods->set_power_mode(pdev, power_mode);
713 libusb20_dev_get_power_mode(struct libusb20_device *pdev)
718 error = pdev->methods->get_power_mode(pdev, &power_mode);
720 power_mode = LIBUSB20_POWER_ON; /* fake power mode */
725 libusb20_dev_set_alt_index(struct libusb20_device *pdev, uint8_t ifaceIndex, uint8_t altIndex)
729 error = pdev->methods->set_alt_index(pdev, ifaceIndex, altIndex);
734 libusb20_dev_set_config_index(struct libusb20_device *pdev, uint8_t configIndex)
738 error = pdev->methods->set_config_index(pdev, configIndex);
743 libusb20_dev_request_sync(struct libusb20_device *pdev,
744 struct LIBUSB20_CONTROL_SETUP_DECODED *setup, void *data,
745 uint16_t *pactlen, uint32_t timeout, uint8_t flags)
749 error = pdev->methods->do_request_sync(pdev,
750 setup, data, pactlen, timeout, flags);
755 libusb20_dev_req_string_sync(struct libusb20_device *pdev,
756 uint8_t str_index, uint16_t langid, void *ptr, uint16_t len)
758 struct LIBUSB20_CONTROL_SETUP_DECODED req;
761 /* make sure memory is initialised */
766 return (LIBUSB20_ERROR_INVALID_PARAM);
768 LIBUSB20_INIT(LIBUSB20_CONTROL_SETUP, &req);
771 * We need to read the USB string in two steps else some USB
772 * devices will complain.
775 LIBUSB20_REQUEST_TYPE_STANDARD |
776 LIBUSB20_RECIPIENT_DEVICE |
777 LIBUSB20_ENDPOINT_IN;
778 req.bRequest = LIBUSB20_REQUEST_GET_DESCRIPTOR;
779 req.wValue = (LIBUSB20_DT_STRING << 8) | str_index;
781 req.wLength = 4; /* bytes */
783 error = libusb20_dev_request_sync(pdev, &req,
784 ptr, NULL, 1000, LIBUSB20_TRANSFER_SINGLE_SHORT_NOT_OK);
788 req.wLength = *(uint8_t *)ptr; /* bytes */
789 if (req.wLength > len) {
790 /* partial string read */
793 error = libusb20_dev_request_sync(pdev, &req,
794 ptr, NULL, 1000, LIBUSB20_TRANSFER_SINGLE_SHORT_NOT_OK);
799 if (((uint8_t *)ptr)[1] != LIBUSB20_DT_STRING) {
800 return (LIBUSB20_ERROR_OTHER);
802 return (0); /* success */
806 libusb20_dev_req_string_simple_sync(struct libusb20_device *pdev,
807 uint8_t str_index, void *ptr, uint16_t len)
818 /* the following code derives from the FreeBSD USB kernel */
820 if ((len < 1) || (ptr == NULL)) {
821 /* too short buffer */
822 return (LIBUSB20_ERROR_INVALID_PARAM);
824 error = libusb20_dev_req_string_sync(pdev,
825 0, 0, temp, sizeof(temp));
827 *(uint8_t *)ptr = 0; /* zero terminate */
830 langid = temp[2] | (temp[3] << 8);
832 error = libusb20_dev_req_string_sync(pdev, str_index,
833 langid, temp, sizeof(temp));
835 *(uint8_t *)ptr = 0; /* zero terminate */
839 /* string length is too short */
840 *(uint8_t *)ptr = 0; /* zero terminate */
841 return (LIBUSB20_ERROR_OTHER);
843 /* reserve one byte for terminating zero */
846 /* find maximum length */
847 n = (temp[0] / 2) - 1;
851 /* reset swap state */
854 /* setup output buffer pointer */
857 /* convert and filter */
858 for (i = 0; (i != n); i++) {
859 c = temp[(2 * i) + 2] | (temp[(2 * i) + 3] << 8);
861 /* convert from Unicode, handle buggy strings */
862 if (((c & 0xff00) == 0) && (swap & 1)) {
863 /* Little Endian, default */
866 } else if (((c & 0x00ff) == 0) && (swap & 2)) {
871 /* skip invalid character */
875 * Filter by default - we don't allow greater and less than
876 * signs because they might confuse the dmesg printouts!
878 if ((*buf == '<') || (*buf == '>') || (!isprint(*buf))) {
879 /* skip invalid character */
884 *buf = 0; /* zero terminate string */
889 struct libusb20_config *
890 libusb20_dev_alloc_config(struct libusb20_device *pdev, uint8_t configIndex)
892 struct libusb20_config *retval = NULL;
898 if (!pdev->is_opened) {
899 error = libusb20_dev_open(pdev, 0);
907 error = pdev->methods->get_config_desc_full(pdev,
908 &ptr, &len, configIndex);
913 /* parse new config descriptor */
914 retval = libusb20_parse_config_desc(ptr);
916 /* free config descriptor */
921 error = libusb20_dev_close(pdev);
926 struct libusb20_device *
927 libusb20_dev_alloc(void)
929 struct libusb20_device *pdev;
931 pdev = malloc(sizeof(*pdev));
935 memset(pdev, 0, sizeof(*pdev));
938 pdev->file_ctrl = -1;
939 pdev->methods = &libusb20_dummy_methods;
944 libusb20_dev_get_config_index(struct libusb20_device *pdev)
950 if (!pdev->is_opened) {
951 error = libusb20_dev_open(pdev, 0);
961 error = pdev->methods->get_config_index(pdev, &cfg_index);
963 cfg_index = 0xFF; /* current config index */
965 if (libusb20_dev_close(pdev)) {
973 libusb20_dev_get_mode(struct libusb20_device *pdev)
975 return (pdev->usb_mode);
979 libusb20_dev_get_speed(struct libusb20_device *pdev)
981 return (pdev->usb_speed);
984 /* if this function returns an error, the device is gone */
986 libusb20_dev_process(struct libusb20_device *pdev)
990 error = pdev->methods->process(pdev);
995 libusb20_dev_wait_process(struct libusb20_device *pdev, int timeout)
997 struct pollfd pfd[1];
999 if (!pdev->is_opened) {
1002 pfd[0].fd = pdev->file;
1003 pfd[0].events = (POLLIN | POLLOUT | POLLRDNORM | POLLWRNORM);
1006 if (poll(pfd, 1, timeout)) {
1007 /* ignore any error */
1013 libusb20_dev_free(struct libusb20_device *pdev)
1019 if (pdev->is_opened) {
1020 if (libusb20_dev_close(pdev)) {
1021 /* ignore any errors */
1029 libusb20_dev_get_info(struct libusb20_device *pdev,
1030 struct usb_device_info *pinfo)
1033 return (LIBUSB20_ERROR_INVALID_PARAM);
1035 return (pdev->beMethods->dev_get_info(pdev, pinfo));
1039 libusb20_dev_get_backend_name(struct libusb20_device *pdev)
1041 return (pdev->beMethods->get_backend_name());
1045 libusb20_dev_get_desc(struct libusb20_device *pdev)
1047 return (pdev->usb_desc);
1051 libusb20_dev_set_debug(struct libusb20_device *pdev, int debug)
1053 pdev->debug = debug;
1058 libusb20_dev_get_debug(struct libusb20_device *pdev)
1060 return (pdev->debug);
1064 libusb20_dev_get_address(struct libusb20_device *pdev)
1066 return (pdev->device_address);
1070 libusb20_dev_get_parent_address(struct libusb20_device *pdev)
1072 return (pdev->parent_address);
1076 libusb20_dev_get_parent_port(struct libusb20_device *pdev)
1078 return (pdev->parent_port);
1082 libusb20_dev_get_bus_number(struct libusb20_device *pdev)
1084 return (pdev->bus_number);
1088 libusb20_dev_get_iface_desc(struct libusb20_device *pdev,
1089 uint8_t iface_index, char *buf, uint8_t len)
1091 if ((buf == NULL) || (len == 0))
1092 return (LIBUSB20_ERROR_INVALID_PARAM);
1094 buf[0] = 0; /* set default string value */
1096 return (pdev->beMethods->dev_get_iface_desc(
1097 pdev, iface_index, buf, len));
1100 /* USB backend operations */
1103 libusb20_be_get_dev_quirk(struct libusb20_backend *pbe,
1104 uint16_t quirk_index, struct libusb20_quirk *pq)
1106 return (pbe->methods->root_get_dev_quirk(pbe, quirk_index, pq));
1110 libusb20_be_get_quirk_name(struct libusb20_backend *pbe,
1111 uint16_t quirk_index, struct libusb20_quirk *pq)
1113 return (pbe->methods->root_get_quirk_name(pbe, quirk_index, pq));
1117 libusb20_be_add_dev_quirk(struct libusb20_backend *pbe,
1118 struct libusb20_quirk *pq)
1120 return (pbe->methods->root_add_dev_quirk(pbe, pq));
1124 libusb20_be_remove_dev_quirk(struct libusb20_backend *pbe,
1125 struct libusb20_quirk *pq)
1127 return (pbe->methods->root_remove_dev_quirk(pbe, pq));
1131 libusb20_be_set_template(struct libusb20_backend *pbe, int temp)
1133 return (pbe->methods->root_set_template(pbe, temp));
1137 libusb20_be_get_template(struct libusb20_backend *pbe, int *ptemp)
1144 return (pbe->methods->root_get_template(pbe, ptemp));
1147 struct libusb20_device *
1148 libusb20_be_device_foreach(struct libusb20_backend *pbe, struct libusb20_device *pdev)
1152 } else if (pdev == NULL) {
1153 pdev = TAILQ_FIRST(&(pbe->usb_devs));
1155 pdev = TAILQ_NEXT(pdev, dev_entry);
1160 struct libusb20_backend *
1161 libusb20_be_alloc(const struct libusb20_backend_methods *methods)
1163 struct libusb20_backend *pbe;
1165 pbe = malloc(sizeof(*pbe));
1169 memset(pbe, 0, sizeof(*pbe));
1171 TAILQ_INIT(&(pbe->usb_devs));
1173 pbe->methods = methods; /* set backend methods */
1175 /* do the initial device scan */
1176 if (pbe->methods->init_backend) {
1177 pbe->methods->init_backend(pbe);
1182 struct libusb20_backend *
1183 libusb20_be_alloc_linux(void)
1185 struct libusb20_backend *pbe;
1188 pbe = libusb20_be_alloc(&libusb20_linux_backend);
1195 struct libusb20_backend *
1196 libusb20_be_alloc_ugen20(void)
1198 struct libusb20_backend *pbe;
1200 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
1201 pbe = libusb20_be_alloc(&libusb20_ugen20_backend);
1208 struct libusb20_backend *
1209 libusb20_be_alloc_default(void)
1211 struct libusb20_backend *pbe;
1213 pbe = libusb20_be_alloc_linux();
1217 pbe = libusb20_be_alloc_ugen20();
1221 return (NULL); /* no backend found */
1225 libusb20_be_free(struct libusb20_backend *pbe)
1227 struct libusb20_device *pdev;
1233 while ((pdev = libusb20_be_device_foreach(pbe, NULL))) {
1234 libusb20_be_dequeue_device(pbe, pdev);
1235 libusb20_dev_free(pdev);
1237 if (pbe->methods->exit_backend) {
1238 pbe->methods->exit_backend(pbe);
1245 libusb20_be_enqueue_device(struct libusb20_backend *pbe, struct libusb20_device *pdev)
1247 pdev->beMethods = pbe->methods; /* copy backend methods */
1248 TAILQ_INSERT_TAIL(&(pbe->usb_devs), pdev, dev_entry);
1252 libusb20_be_dequeue_device(struct libusb20_backend *pbe,
1253 struct libusb20_device *pdev)
1255 TAILQ_REMOVE(&(pbe->usb_devs), pdev, dev_entry);
1259 libusb20_strerror(int code)
1262 case LIBUSB20_SUCCESS:
1264 case LIBUSB20_ERROR_IO:
1265 return ("I/O error");
1266 case LIBUSB20_ERROR_INVALID_PARAM:
1267 return ("Invalid parameter");
1268 case LIBUSB20_ERROR_ACCESS:
1269 return ("Permissions error");
1270 case LIBUSB20_ERROR_NO_DEVICE:
1271 return ("No device");
1272 case LIBUSB20_ERROR_NOT_FOUND:
1273 return ("Not found");
1274 case LIBUSB20_ERROR_BUSY:
1275 return ("Device busy");
1276 case LIBUSB20_ERROR_TIMEOUT:
1278 case LIBUSB20_ERROR_OVERFLOW:
1279 return ("Overflow");
1280 case LIBUSB20_ERROR_PIPE:
1281 return ("Pipe error");
1282 case LIBUSB20_ERROR_INTERRUPTED:
1283 return ("Interrupted");
1284 case LIBUSB20_ERROR_NO_MEM:
1285 return ("Out of memory");
1286 case LIBUSB20_ERROR_NOT_SUPPORTED:
1287 return ("Not supported");
1288 case LIBUSB20_ERROR_OTHER:
1289 return ("Other error");
1291 return ("Unknown error");
1296 libusb20_error_name(int code)
1299 case LIBUSB20_SUCCESS:
1300 return ("LIBUSB20_SUCCESS");
1301 case LIBUSB20_ERROR_IO:
1302 return ("LIBUSB20_ERROR_IO");
1303 case LIBUSB20_ERROR_INVALID_PARAM:
1304 return ("LIBUSB20_ERROR_INVALID_PARAM");
1305 case LIBUSB20_ERROR_ACCESS:
1306 return ("LIBUSB20_ERROR_ACCESS");
1307 case LIBUSB20_ERROR_NO_DEVICE:
1308 return ("LIBUSB20_ERROR_NO_DEVICE");
1309 case LIBUSB20_ERROR_NOT_FOUND:
1310 return ("LIBUSB20_ERROR_NOT_FOUND");
1311 case LIBUSB20_ERROR_BUSY:
1312 return ("LIBUSB20_ERROR_BUSY");
1313 case LIBUSB20_ERROR_TIMEOUT:
1314 return ("LIBUSB20_ERROR_TIMEOUT");
1315 case LIBUSB20_ERROR_OVERFLOW:
1316 return ("LIBUSB20_ERROR_OVERFLOW");
1317 case LIBUSB20_ERROR_PIPE:
1318 return ("LIBUSB20_ERROR_PIPE");
1319 case LIBUSB20_ERROR_INTERRUPTED:
1320 return ("LIBUSB20_ERROR_INTERRUPTED");
1321 case LIBUSB20_ERROR_NO_MEM:
1322 return ("LIBUSB20_ERROR_NO_MEM");
1323 case LIBUSB20_ERROR_NOT_SUPPORTED:
1324 return ("LIBUSB20_ERROR_NOT_SUPPORTED");
1325 case LIBUSB20_ERROR_OTHER:
1326 return ("LIBUSB20_ERROR_OTHER");
1328 return ("LIBUSB20_ERROR_UNKNOWN");