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)
158 return (libusb20_tr_open_stream(xfer, MaxBufSize, MaxFrameCount, ep_no, 0));
162 libusb20_tr_open_stream(struct libusb20_transfer *xfer, uint32_t MaxBufSize,
163 uint32_t MaxFrameCount, uint8_t ep_no, uint16_t stream_id)
170 return (LIBUSB20_ERROR_BUSY);
171 if (MaxFrameCount & LIBUSB20_MAX_FRAME_PRE_SCALE) {
172 MaxFrameCount &= ~LIBUSB20_MAX_FRAME_PRE_SCALE;
177 if (MaxFrameCount == 0)
178 return (LIBUSB20_ERROR_INVALID_PARAM);
180 xfer->maxFrames = MaxFrameCount;
182 size = MaxFrameCount * sizeof(xfer->pLength[0]);
183 xfer->pLength = malloc(size);
184 if (xfer->pLength == NULL) {
185 return (LIBUSB20_ERROR_NO_MEM);
187 memset(xfer->pLength, 0, size);
189 size = MaxFrameCount * sizeof(xfer->ppBuffer[0]);
190 xfer->ppBuffer = malloc(size);
191 if (xfer->ppBuffer == NULL) {
193 return (LIBUSB20_ERROR_NO_MEM);
195 memset(xfer->ppBuffer, 0, size);
197 error = xfer->pdev->methods->tr_open(xfer, MaxBufSize,
198 MaxFrameCount, ep_no, stream_id, pre_scale);
201 free(xfer->ppBuffer);
209 struct libusb20_transfer *
210 libusb20_tr_get_pointer(struct libusb20_device *pdev, uint16_t trIndex)
212 if (trIndex >= pdev->nTransfer) {
215 return (pdev->pTransfer + trIndex);
219 libusb20_tr_get_actual_frames(struct libusb20_transfer *xfer)
221 return (xfer->aFrames);
225 libusb20_tr_get_time_complete(struct libusb20_transfer *xfer)
227 return (xfer->timeComplete);
231 libusb20_tr_get_actual_length(struct libusb20_transfer *xfer)
236 for (x = 0; x != xfer->aFrames; x++) {
237 actlen += xfer->pLength[x];
243 libusb20_tr_get_max_frames(struct libusb20_transfer *xfer)
245 return (xfer->maxFrames);
249 libusb20_tr_get_max_packet_length(struct libusb20_transfer *xfer)
252 * Special Case NOTE: If the packet multiplier is non-zero for
253 * High Speed USB, the value returned is equal to
254 * "wMaxPacketSize * multiplier" !
256 return (xfer->maxPacketLen);
260 libusb20_tr_get_max_total_length(struct libusb20_transfer *xfer)
262 return (xfer->maxTotalLength);
266 libusb20_tr_get_status(struct libusb20_transfer *xfer)
268 return (xfer->status);
272 libusb20_tr_pending(struct libusb20_transfer *xfer)
274 return (xfer->is_pending);
278 libusb20_tr_get_priv_sc0(struct libusb20_transfer *xfer)
280 return (xfer->priv_sc0);
284 libusb20_tr_get_priv_sc1(struct libusb20_transfer *xfer)
286 return (xfer->priv_sc1);
290 libusb20_tr_stop(struct libusb20_transfer *xfer)
292 if (!xfer->is_opened) {
293 /* transfer is not opened */
296 if (!xfer->is_pending) {
297 /* transfer not pending */
300 if (xfer->is_cancel) {
301 /* already cancelling */
304 xfer->is_cancel = 1; /* we are cancelling */
306 xfer->pdev->methods->tr_cancel_async(xfer);
311 libusb20_tr_drain(struct libusb20_transfer *xfer)
313 if (!xfer->is_opened) {
314 /* transfer is not opened */
317 /* make sure that we are cancelling */
318 libusb20_tr_stop(xfer);
320 if (xfer->is_pending) {
321 xfer->is_draining = 1;
327 libusb20_tr_clear_stall_sync(struct libusb20_transfer *xfer)
329 xfer->pdev->methods->tr_clear_stall_sync(xfer);
334 libusb20_tr_set_buffer(struct libusb20_transfer *xfer, void *buffer, uint16_t frIndex)
336 xfer->ppBuffer[frIndex] = libusb20_pass_ptr(buffer);
341 libusb20_tr_set_callback(struct libusb20_transfer *xfer, libusb20_tr_callback_t *cb)
348 libusb20_tr_set_flags(struct libusb20_transfer *xfer, uint8_t flags)
355 libusb20_tr_get_length(struct libusb20_transfer *xfer, uint16_t frIndex)
357 return (xfer->pLength[frIndex]);
361 libusb20_tr_set_length(struct libusb20_transfer *xfer, uint32_t length, uint16_t frIndex)
363 xfer->pLength[frIndex] = length;
368 libusb20_tr_set_priv_sc0(struct libusb20_transfer *xfer, void *sc0)
370 xfer->priv_sc0 = sc0;
375 libusb20_tr_set_priv_sc1(struct libusb20_transfer *xfer, void *sc1)
377 xfer->priv_sc1 = sc1;
382 libusb20_tr_set_timeout(struct libusb20_transfer *xfer, uint32_t timeout)
384 xfer->timeout = timeout;
389 libusb20_tr_set_total_frames(struct libusb20_transfer *xfer, uint32_t nFrames)
391 if (nFrames > xfer->maxFrames) {
392 /* should not happen */
393 nFrames = xfer->maxFrames;
395 xfer->nFrames = nFrames;
400 libusb20_tr_setup_bulk(struct libusb20_transfer *xfer, void *pBuf, uint32_t length, uint32_t timeout)
402 xfer->ppBuffer[0] = libusb20_pass_ptr(pBuf);
403 xfer->pLength[0] = length;
404 xfer->timeout = timeout;
410 libusb20_tr_setup_control(struct libusb20_transfer *xfer, void *psetup, void *pBuf, uint32_t timeout)
414 xfer->ppBuffer[0] = libusb20_pass_ptr(psetup);
415 xfer->pLength[0] = 8; /* fixed */
416 xfer->timeout = timeout;
418 len = ((uint8_t *)psetup)[6] | (((uint8_t *)psetup)[7] << 8);
422 xfer->ppBuffer[1] = libusb20_pass_ptr(pBuf);
423 xfer->pLength[1] = len;
431 libusb20_tr_setup_intr(struct libusb20_transfer *xfer, void *pBuf, uint32_t length, uint32_t timeout)
433 xfer->ppBuffer[0] = libusb20_pass_ptr(pBuf);
434 xfer->pLength[0] = length;
435 xfer->timeout = timeout;
441 libusb20_tr_setup_isoc(struct libusb20_transfer *xfer, void *pBuf, uint32_t length, uint16_t frIndex)
443 if (frIndex >= xfer->maxFrames) {
444 /* should not happen */
447 xfer->ppBuffer[frIndex] = libusb20_pass_ptr(pBuf);
448 xfer->pLength[frIndex] = length;
453 libusb20_tr_bulk_intr_sync(struct libusb20_transfer *xfer,
454 void *pbuf, uint32_t length, uint32_t *pactlen,
457 struct libusb20_device *pdev = xfer->pdev;
458 uint32_t transfer_max;
459 uint32_t transfer_act;
462 /* set some sensible default value */
466 /* check for error condition */
467 if (libusb20_tr_pending(xfer))
468 return (LIBUSB20_ERROR_OTHER);
471 /* compute maximum transfer length */
473 libusb20_tr_get_max_total_length(xfer);
475 if (transfer_max > length)
476 transfer_max = length;
478 /* setup bulk or interrupt transfer */
479 libusb20_tr_setup_bulk(xfer, pbuf,
480 transfer_max, timeout);
482 /* start the transfer */
483 libusb20_tr_start(xfer);
485 /* wait for transfer completion */
486 while (libusb20_dev_process(pdev) == 0) {
488 if (libusb20_tr_pending(xfer) == 0)
491 libusb20_dev_wait_process(pdev, -1);
494 transfer_act = libusb20_tr_get_actual_length(xfer);
496 /* update actual length, if any */
498 pactlen[0] += transfer_act;
500 /* check transfer status */
501 retval = libusb20_tr_get_status(xfer);
505 /* check for short transfer */
506 if (transfer_act != transfer_max)
509 /* update buffer pointer and length */
510 pbuf = ((uint8_t *)pbuf) + transfer_max;
511 length = length - transfer_max;
513 } while (length != 0);
519 libusb20_tr_submit(struct libusb20_transfer *xfer)
521 if (!xfer->is_opened) {
522 /* transfer is not opened */
525 if (xfer->is_pending) {
526 /* should not happen */
529 xfer->is_pending = 1; /* we are pending */
530 xfer->is_cancel = 0; /* not cancelling */
531 xfer->is_restart = 0; /* not restarting */
533 xfer->pdev->methods->tr_submit(xfer);
538 libusb20_tr_start(struct libusb20_transfer *xfer)
540 if (!xfer->is_opened) {
541 /* transfer is not opened */
544 if (xfer->is_pending) {
545 if (xfer->is_cancel) {
546 /* cancelling - restart */
547 xfer->is_restart = 1;
549 /* transfer not pending */
552 /* get into the callback */
553 libusb20_tr_callback_wrapper(xfer);
557 /* USB device operations */
560 libusb20_dev_close(struct libusb20_device *pdev)
562 struct libusb20_transfer *xfer;
566 if (!pdev->is_opened) {
567 return (LIBUSB20_ERROR_OTHER);
569 for (x = 0; x != pdev->nTransfer; x++) {
570 xfer = pdev->pTransfer + x;
572 if (!xfer->is_opened) {
573 /* transfer is not opened */
577 libusb20_tr_drain(xfer);
579 libusb20_tr_close(xfer);
582 if (pdev->pTransfer != NULL) {
583 free(pdev->pTransfer);
584 pdev->pTransfer = NULL;
586 error = pdev->beMethods->close_device(pdev);
588 pdev->methods = &libusb20_dummy_methods;
593 * The following variable is only used by the libusb v0.1
596 pdev->claimed_interface = 0;
602 libusb20_dev_detach_kernel_driver(struct libusb20_device *pdev, uint8_t ifaceIndex)
606 error = pdev->methods->detach_kernel_driver(pdev, ifaceIndex);
610 struct LIBUSB20_DEVICE_DESC_DECODED *
611 libusb20_dev_get_device_desc(struct libusb20_device *pdev)
613 return (&(pdev->ddesc));
617 libusb20_dev_get_fd(struct libusb20_device *pdev)
623 libusb20_dev_kernel_driver_active(struct libusb20_device *pdev, uint8_t ifaceIndex)
627 error = pdev->methods->kernel_driver_active(pdev, ifaceIndex);
632 libusb20_dev_open(struct libusb20_device *pdev, uint16_t nTransferMax)
634 struct libusb20_transfer *xfer;
639 if (pdev->is_opened) {
640 return (LIBUSB20_ERROR_BUSY);
642 if (nTransferMax >= 256) {
643 return (LIBUSB20_ERROR_INVALID_PARAM);
644 } else if (nTransferMax != 0) {
645 size = sizeof(pdev->pTransfer[0]) * nTransferMax;
646 pdev->pTransfer = malloc(size);
647 if (pdev->pTransfer == NULL) {
648 return (LIBUSB20_ERROR_NO_MEM);
650 memset(pdev->pTransfer, 0, size);
652 /* initialise all transfers */
653 for (x = 0; x != nTransferMax; x++) {
655 xfer = pdev->pTransfer + x;
659 xfer->callback = &dummy_callback;
662 /* set "nTransfer" early */
663 pdev->nTransfer = nTransferMax;
665 error = pdev->beMethods->open_device(pdev, nTransferMax);
668 if (pdev->pTransfer != NULL) {
669 free(pdev->pTransfer);
670 pdev->pTransfer = NULL;
673 pdev->file_ctrl = -1;
682 libusb20_dev_reset(struct libusb20_device *pdev)
686 error = pdev->methods->reset_device(pdev);
691 libusb20_dev_check_connected(struct libusb20_device *pdev)
695 error = pdev->methods->check_connected(pdev);
700 libusb20_dev_set_power_mode(struct libusb20_device *pdev, uint8_t power_mode)
704 error = pdev->methods->set_power_mode(pdev, power_mode);
709 libusb20_dev_get_power_mode(struct libusb20_device *pdev)
714 error = pdev->methods->get_power_mode(pdev, &power_mode);
716 power_mode = LIBUSB20_POWER_ON; /* fake power mode */
721 libusb20_dev_set_alt_index(struct libusb20_device *pdev, uint8_t ifaceIndex, uint8_t altIndex)
725 error = pdev->methods->set_alt_index(pdev, ifaceIndex, altIndex);
730 libusb20_dev_set_config_index(struct libusb20_device *pdev, uint8_t configIndex)
734 error = pdev->methods->set_config_index(pdev, configIndex);
739 libusb20_dev_request_sync(struct libusb20_device *pdev,
740 struct LIBUSB20_CONTROL_SETUP_DECODED *setup, void *data,
741 uint16_t *pactlen, uint32_t timeout, uint8_t flags)
745 error = pdev->methods->do_request_sync(pdev,
746 setup, data, pactlen, timeout, flags);
751 libusb20_dev_req_string_sync(struct libusb20_device *pdev,
752 uint8_t str_index, uint16_t langid, void *ptr, uint16_t len)
754 struct LIBUSB20_CONTROL_SETUP_DECODED req;
757 /* make sure memory is initialised */
762 return (LIBUSB20_ERROR_INVALID_PARAM);
764 LIBUSB20_INIT(LIBUSB20_CONTROL_SETUP, &req);
767 * We need to read the USB string in two steps else some USB
768 * devices will complain.
771 LIBUSB20_REQUEST_TYPE_STANDARD |
772 LIBUSB20_RECIPIENT_DEVICE |
773 LIBUSB20_ENDPOINT_IN;
774 req.bRequest = LIBUSB20_REQUEST_GET_DESCRIPTOR;
775 req.wValue = (LIBUSB20_DT_STRING << 8) | str_index;
777 req.wLength = 4; /* bytes */
779 error = libusb20_dev_request_sync(pdev, &req,
780 ptr, NULL, 1000, LIBUSB20_TRANSFER_SINGLE_SHORT_NOT_OK);
784 req.wLength = *(uint8_t *)ptr; /* bytes */
785 if (req.wLength > len) {
786 /* partial string read */
789 error = libusb20_dev_request_sync(pdev, &req,
790 ptr, NULL, 1000, LIBUSB20_TRANSFER_SINGLE_SHORT_NOT_OK);
795 if (((uint8_t *)ptr)[1] != LIBUSB20_DT_STRING) {
796 return (LIBUSB20_ERROR_OTHER);
798 return (0); /* success */
802 libusb20_dev_req_string_simple_sync(struct libusb20_device *pdev,
803 uint8_t str_index, void *ptr, uint16_t len)
814 /* the following code derives from the FreeBSD USB kernel */
816 if ((len < 1) || (ptr == NULL)) {
817 /* too short buffer */
818 return (LIBUSB20_ERROR_INVALID_PARAM);
820 error = libusb20_dev_req_string_sync(pdev,
821 0, 0, temp, sizeof(temp));
823 *(uint8_t *)ptr = 0; /* zero terminate */
826 langid = temp[2] | (temp[3] << 8);
828 error = libusb20_dev_req_string_sync(pdev, str_index,
829 langid, temp, sizeof(temp));
831 *(uint8_t *)ptr = 0; /* zero terminate */
835 /* string length is too short */
836 *(uint8_t *)ptr = 0; /* zero terminate */
837 return (LIBUSB20_ERROR_OTHER);
839 /* reserve one byte for terminating zero */
842 /* find maximum length */
843 n = (temp[0] / 2) - 1;
847 /* reset swap state */
850 /* setup output buffer pointer */
853 /* convert and filter */
854 for (i = 0; (i != n); i++) {
855 c = temp[(2 * i) + 2] | (temp[(2 * i) + 3] << 8);
857 /* convert from Unicode, handle buggy strings */
858 if (((c & 0xff00) == 0) && (swap & 1)) {
859 /* Little Endian, default */
862 } else if (((c & 0x00ff) == 0) && (swap & 2)) {
867 /* skip invalid character */
871 * Filter by default - we don't allow greater and less than
872 * signs because they might confuse the dmesg printouts!
874 if ((*buf == '<') || (*buf == '>') || (!isprint(*buf))) {
875 /* skip invalid character */
880 *buf = 0; /* zero terminate string */
885 struct libusb20_config *
886 libusb20_dev_alloc_config(struct libusb20_device *pdev, uint8_t configIndex)
888 struct libusb20_config *retval = NULL;
894 if (!pdev->is_opened) {
895 error = libusb20_dev_open(pdev, 0);
903 error = pdev->methods->get_config_desc_full(pdev,
904 &ptr, &len, configIndex);
909 /* parse new config descriptor */
910 retval = libusb20_parse_config_desc(ptr);
912 /* free config descriptor */
917 error = libusb20_dev_close(pdev);
922 struct libusb20_device *
923 libusb20_dev_alloc(void)
925 struct libusb20_device *pdev;
927 pdev = malloc(sizeof(*pdev));
931 memset(pdev, 0, sizeof(*pdev));
934 pdev->file_ctrl = -1;
935 pdev->methods = &libusb20_dummy_methods;
940 libusb20_dev_get_config_index(struct libusb20_device *pdev)
946 if (!pdev->is_opened) {
947 error = libusb20_dev_open(pdev, 0);
957 error = pdev->methods->get_config_index(pdev, &cfg_index);
959 cfg_index = 0xFF; /* current config index */
961 if (libusb20_dev_close(pdev)) {
969 libusb20_dev_get_mode(struct libusb20_device *pdev)
971 return (pdev->usb_mode);
975 libusb20_dev_get_speed(struct libusb20_device *pdev)
977 return (pdev->usb_speed);
980 /* if this function returns an error, the device is gone */
982 libusb20_dev_process(struct libusb20_device *pdev)
986 error = pdev->methods->process(pdev);
991 libusb20_dev_wait_process(struct libusb20_device *pdev, int timeout)
993 struct pollfd pfd[1];
995 if (!pdev->is_opened) {
998 pfd[0].fd = pdev->file;
999 pfd[0].events = (POLLIN | POLLOUT | POLLRDNORM | POLLWRNORM);
1002 if (poll(pfd, 1, timeout)) {
1003 /* ignore any error */
1009 libusb20_dev_free(struct libusb20_device *pdev)
1015 if (pdev->is_opened) {
1016 if (libusb20_dev_close(pdev)) {
1017 /* ignore any errors */
1025 libusb20_dev_get_info(struct libusb20_device *pdev,
1026 struct usb_device_info *pinfo)
1029 return (LIBUSB20_ERROR_INVALID_PARAM);
1031 return (pdev->beMethods->dev_get_info(pdev, pinfo));
1035 libusb20_dev_get_backend_name(struct libusb20_device *pdev)
1037 return (pdev->beMethods->get_backend_name());
1041 libusb20_dev_get_desc(struct libusb20_device *pdev)
1043 return (pdev->usb_desc);
1047 libusb20_dev_set_debug(struct libusb20_device *pdev, int debug)
1049 pdev->debug = debug;
1054 libusb20_dev_get_debug(struct libusb20_device *pdev)
1056 return (pdev->debug);
1060 libusb20_dev_get_address(struct libusb20_device *pdev)
1062 return (pdev->device_address);
1066 libusb20_dev_get_parent_address(struct libusb20_device *pdev)
1068 return (pdev->parent_address);
1072 libusb20_dev_get_parent_port(struct libusb20_device *pdev)
1074 return (pdev->parent_port);
1078 libusb20_dev_get_bus_number(struct libusb20_device *pdev)
1080 return (pdev->bus_number);
1084 libusb20_dev_get_iface_desc(struct libusb20_device *pdev,
1085 uint8_t iface_index, char *buf, uint8_t len)
1087 if ((buf == NULL) || (len == 0))
1088 return (LIBUSB20_ERROR_INVALID_PARAM);
1090 buf[0] = 0; /* set default string value */
1092 return (pdev->beMethods->dev_get_iface_desc(
1093 pdev, iface_index, buf, len));
1096 /* USB backend operations */
1099 libusb20_be_get_dev_quirk(struct libusb20_backend *pbe,
1100 uint16_t quirk_index, struct libusb20_quirk *pq)
1102 return (pbe->methods->root_get_dev_quirk(pbe, quirk_index, pq));
1106 libusb20_be_get_quirk_name(struct libusb20_backend *pbe,
1107 uint16_t quirk_index, struct libusb20_quirk *pq)
1109 return (pbe->methods->root_get_quirk_name(pbe, quirk_index, pq));
1113 libusb20_be_add_dev_quirk(struct libusb20_backend *pbe,
1114 struct libusb20_quirk *pq)
1116 return (pbe->methods->root_add_dev_quirk(pbe, pq));
1120 libusb20_be_remove_dev_quirk(struct libusb20_backend *pbe,
1121 struct libusb20_quirk *pq)
1123 return (pbe->methods->root_remove_dev_quirk(pbe, pq));
1127 libusb20_be_set_template(struct libusb20_backend *pbe, int temp)
1129 return (pbe->methods->root_set_template(pbe, temp));
1133 libusb20_be_get_template(struct libusb20_backend *pbe, int *ptemp)
1140 return (pbe->methods->root_get_template(pbe, ptemp));
1143 struct libusb20_device *
1144 libusb20_be_device_foreach(struct libusb20_backend *pbe, struct libusb20_device *pdev)
1148 } else if (pdev == NULL) {
1149 pdev = TAILQ_FIRST(&(pbe->usb_devs));
1151 pdev = TAILQ_NEXT(pdev, dev_entry);
1156 struct libusb20_backend *
1157 libusb20_be_alloc(const struct libusb20_backend_methods *methods)
1159 struct libusb20_backend *pbe;
1161 pbe = malloc(sizeof(*pbe));
1165 memset(pbe, 0, sizeof(*pbe));
1167 TAILQ_INIT(&(pbe->usb_devs));
1169 pbe->methods = methods; /* set backend methods */
1171 /* do the initial device scan */
1172 if (pbe->methods->init_backend) {
1173 pbe->methods->init_backend(pbe);
1178 struct libusb20_backend *
1179 libusb20_be_alloc_linux(void)
1181 struct libusb20_backend *pbe;
1184 pbe = libusb20_be_alloc(&libusb20_linux_backend);
1191 struct libusb20_backend *
1192 libusb20_be_alloc_ugen20(void)
1194 struct libusb20_backend *pbe;
1196 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
1197 pbe = libusb20_be_alloc(&libusb20_ugen20_backend);
1204 struct libusb20_backend *
1205 libusb20_be_alloc_default(void)
1207 struct libusb20_backend *pbe;
1209 pbe = libusb20_be_alloc_linux();
1213 pbe = libusb20_be_alloc_ugen20();
1217 return (NULL); /* no backend found */
1221 libusb20_be_free(struct libusb20_backend *pbe)
1223 struct libusb20_device *pdev;
1229 while ((pdev = libusb20_be_device_foreach(pbe, NULL))) {
1230 libusb20_be_dequeue_device(pbe, pdev);
1231 libusb20_dev_free(pdev);
1233 if (pbe->methods->exit_backend) {
1234 pbe->methods->exit_backend(pbe);
1241 libusb20_be_enqueue_device(struct libusb20_backend *pbe, struct libusb20_device *pdev)
1243 pdev->beMethods = pbe->methods; /* copy backend methods */
1244 TAILQ_INSERT_TAIL(&(pbe->usb_devs), pdev, dev_entry);
1248 libusb20_be_dequeue_device(struct libusb20_backend *pbe,
1249 struct libusb20_device *pdev)
1251 TAILQ_REMOVE(&(pbe->usb_devs), pdev, dev_entry);
1255 libusb20_strerror(int code)
1258 case LIBUSB20_SUCCESS:
1260 case LIBUSB20_ERROR_IO:
1261 return ("I/O error");
1262 case LIBUSB20_ERROR_INVALID_PARAM:
1263 return ("Invalid parameter");
1264 case LIBUSB20_ERROR_ACCESS:
1265 return ("Permissions error");
1266 case LIBUSB20_ERROR_NO_DEVICE:
1267 return ("No device");
1268 case LIBUSB20_ERROR_NOT_FOUND:
1269 return ("Not found");
1270 case LIBUSB20_ERROR_BUSY:
1271 return ("Device busy");
1272 case LIBUSB20_ERROR_TIMEOUT:
1274 case LIBUSB20_ERROR_OVERFLOW:
1275 return ("Overflow");
1276 case LIBUSB20_ERROR_PIPE:
1277 return ("Pipe error");
1278 case LIBUSB20_ERROR_INTERRUPTED:
1279 return ("Interrupted");
1280 case LIBUSB20_ERROR_NO_MEM:
1281 return ("Out of memory");
1282 case LIBUSB20_ERROR_NOT_SUPPORTED:
1283 return ("Not supported");
1284 case LIBUSB20_ERROR_OTHER:
1285 return ("Other error");
1287 return ("Unknown error");
1292 libusb20_error_name(int code)
1295 case LIBUSB20_SUCCESS:
1296 return ("LIBUSB20_SUCCESS");
1297 case LIBUSB20_ERROR_IO:
1298 return ("LIBUSB20_ERROR_IO");
1299 case LIBUSB20_ERROR_INVALID_PARAM:
1300 return ("LIBUSB20_ERROR_INVALID_PARAM");
1301 case LIBUSB20_ERROR_ACCESS:
1302 return ("LIBUSB20_ERROR_ACCESS");
1303 case LIBUSB20_ERROR_NO_DEVICE:
1304 return ("LIBUSB20_ERROR_NO_DEVICE");
1305 case LIBUSB20_ERROR_NOT_FOUND:
1306 return ("LIBUSB20_ERROR_NOT_FOUND");
1307 case LIBUSB20_ERROR_BUSY:
1308 return ("LIBUSB20_ERROR_BUSY");
1309 case LIBUSB20_ERROR_TIMEOUT:
1310 return ("LIBUSB20_ERROR_TIMEOUT");
1311 case LIBUSB20_ERROR_OVERFLOW:
1312 return ("LIBUSB20_ERROR_OVERFLOW");
1313 case LIBUSB20_ERROR_PIPE:
1314 return ("LIBUSB20_ERROR_PIPE");
1315 case LIBUSB20_ERROR_INTERRUPTED:
1316 return ("LIBUSB20_ERROR_INTERRUPTED");
1317 case LIBUSB20_ERROR_NO_MEM:
1318 return ("LIBUSB20_ERROR_NO_MEM");
1319 case LIBUSB20_ERROR_NOT_SUPPORTED:
1320 return ("LIBUSB20_ERROR_NOT_SUPPORTED");
1321 case LIBUSB20_ERROR_OTHER:
1322 return ("LIBUSB20_ERROR_OTHER");
1324 return ("LIBUSB20_ERROR_UNKNOWN");