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;
170 if (MaxFrameCount == 0)
171 return (LIBUSB20_ERROR_INVALID_PARAM);
173 xfer->maxFrames = MaxFrameCount;
175 size = MaxFrameCount * sizeof(xfer->pLength[0]);
176 xfer->pLength = malloc(size);
177 if (xfer->pLength == NULL) {
178 return (LIBUSB20_ERROR_NO_MEM);
180 memset(xfer->pLength, 0, size);
182 size = MaxFrameCount * sizeof(xfer->ppBuffer[0]);
183 xfer->ppBuffer = malloc(size);
184 if (xfer->ppBuffer == NULL) {
186 return (LIBUSB20_ERROR_NO_MEM);
188 memset(xfer->ppBuffer, 0, size);
190 error = xfer->pdev->methods->tr_open(xfer, MaxBufSize,
191 MaxFrameCount, ep_no, pre_scale);
194 free(xfer->ppBuffer);
202 struct libusb20_transfer *
203 libusb20_tr_get_pointer(struct libusb20_device *pdev, uint16_t trIndex)
205 if (trIndex >= pdev->nTransfer) {
208 return (pdev->pTransfer + trIndex);
212 libusb20_tr_get_actual_frames(struct libusb20_transfer *xfer)
214 return (xfer->aFrames);
218 libusb20_tr_get_time_complete(struct libusb20_transfer *xfer)
220 return (xfer->timeComplete);
224 libusb20_tr_get_actual_length(struct libusb20_transfer *xfer)
229 for (x = 0; x != xfer->aFrames; x++) {
230 actlen += xfer->pLength[x];
236 libusb20_tr_get_max_frames(struct libusb20_transfer *xfer)
238 return (xfer->maxFrames);
242 libusb20_tr_get_max_packet_length(struct libusb20_transfer *xfer)
245 * Special Case NOTE: If the packet multiplier is non-zero for
246 * High Speed USB, the value returned is equal to
247 * "wMaxPacketSize * multiplier" !
249 return (xfer->maxPacketLen);
253 libusb20_tr_get_max_total_length(struct libusb20_transfer *xfer)
255 return (xfer->maxTotalLength);
259 libusb20_tr_get_status(struct libusb20_transfer *xfer)
261 return (xfer->status);
265 libusb20_tr_pending(struct libusb20_transfer *xfer)
267 return (xfer->is_pending);
271 libusb20_tr_get_priv_sc0(struct libusb20_transfer *xfer)
273 return (xfer->priv_sc0);
277 libusb20_tr_get_priv_sc1(struct libusb20_transfer *xfer)
279 return (xfer->priv_sc1);
283 libusb20_tr_stop(struct libusb20_transfer *xfer)
285 if (!xfer->is_opened) {
286 /* transfer is not opened */
289 if (!xfer->is_pending) {
290 /* transfer not pending */
293 if (xfer->is_cancel) {
294 /* already cancelling */
297 xfer->is_cancel = 1; /* we are cancelling */
299 xfer->pdev->methods->tr_cancel_async(xfer);
304 libusb20_tr_drain(struct libusb20_transfer *xfer)
306 if (!xfer->is_opened) {
307 /* transfer is not opened */
310 /* make sure that we are cancelling */
311 libusb20_tr_stop(xfer);
313 if (xfer->is_pending) {
314 xfer->is_draining = 1;
320 libusb20_tr_clear_stall_sync(struct libusb20_transfer *xfer)
322 xfer->pdev->methods->tr_clear_stall_sync(xfer);
327 libusb20_tr_set_buffer(struct libusb20_transfer *xfer, void *buffer, uint16_t frIndex)
329 xfer->ppBuffer[frIndex] = libusb20_pass_ptr(buffer);
334 libusb20_tr_set_callback(struct libusb20_transfer *xfer, libusb20_tr_callback_t *cb)
341 libusb20_tr_set_flags(struct libusb20_transfer *xfer, uint8_t flags)
348 libusb20_tr_get_length(struct libusb20_transfer *xfer, uint16_t frIndex)
350 return (xfer->pLength[frIndex]);
354 libusb20_tr_set_length(struct libusb20_transfer *xfer, uint32_t length, uint16_t frIndex)
356 xfer->pLength[frIndex] = length;
361 libusb20_tr_set_priv_sc0(struct libusb20_transfer *xfer, void *sc0)
363 xfer->priv_sc0 = sc0;
368 libusb20_tr_set_priv_sc1(struct libusb20_transfer *xfer, void *sc1)
370 xfer->priv_sc1 = sc1;
375 libusb20_tr_set_timeout(struct libusb20_transfer *xfer, uint32_t timeout)
377 xfer->timeout = timeout;
382 libusb20_tr_set_total_frames(struct libusb20_transfer *xfer, uint32_t nFrames)
384 if (nFrames > xfer->maxFrames) {
385 /* should not happen */
386 nFrames = xfer->maxFrames;
388 xfer->nFrames = nFrames;
393 libusb20_tr_setup_bulk(struct libusb20_transfer *xfer, void *pBuf, uint32_t length, uint32_t timeout)
395 xfer->ppBuffer[0] = libusb20_pass_ptr(pBuf);
396 xfer->pLength[0] = length;
397 xfer->timeout = timeout;
403 libusb20_tr_setup_control(struct libusb20_transfer *xfer, void *psetup, void *pBuf, uint32_t timeout)
407 xfer->ppBuffer[0] = libusb20_pass_ptr(psetup);
408 xfer->pLength[0] = 8; /* fixed */
409 xfer->timeout = timeout;
411 len = ((uint8_t *)psetup)[6] | (((uint8_t *)psetup)[7] << 8);
415 xfer->ppBuffer[1] = libusb20_pass_ptr(pBuf);
416 xfer->pLength[1] = len;
424 libusb20_tr_setup_intr(struct libusb20_transfer *xfer, void *pBuf, uint32_t length, uint32_t timeout)
426 xfer->ppBuffer[0] = libusb20_pass_ptr(pBuf);
427 xfer->pLength[0] = length;
428 xfer->timeout = timeout;
434 libusb20_tr_setup_isoc(struct libusb20_transfer *xfer, void *pBuf, uint32_t length, uint16_t frIndex)
436 if (frIndex >= xfer->maxFrames) {
437 /* should not happen */
440 xfer->ppBuffer[frIndex] = libusb20_pass_ptr(pBuf);
441 xfer->pLength[frIndex] = length;
446 libusb20_tr_bulk_intr_sync(struct libusb20_transfer *xfer,
447 void *pbuf, uint32_t length, uint32_t *pactlen,
450 struct libusb20_device *pdev = xfer->pdev;
451 uint32_t transfer_max;
452 uint32_t transfer_act;
455 /* set some sensible default value */
459 /* check for error condition */
460 if (libusb20_tr_pending(xfer))
461 return (LIBUSB20_ERROR_OTHER);
464 /* compute maximum transfer length */
466 libusb20_tr_get_max_total_length(xfer);
468 if (transfer_max > length)
469 transfer_max = length;
471 /* setup bulk or interrupt transfer */
472 libusb20_tr_setup_bulk(xfer, pbuf,
473 transfer_max, timeout);
475 /* start the transfer */
476 libusb20_tr_start(xfer);
478 /* wait for transfer completion */
479 while (libusb20_dev_process(pdev) == 0) {
481 if (libusb20_tr_pending(xfer) == 0)
484 libusb20_dev_wait_process(pdev, -1);
487 transfer_act = libusb20_tr_get_actual_length(xfer);
489 /* update actual length, if any */
491 pactlen[0] += transfer_act;
493 /* check transfer status */
494 retval = libusb20_tr_get_status(xfer);
498 /* check for short transfer */
499 if (transfer_act != transfer_max)
502 /* update buffer pointer and length */
503 pbuf = ((uint8_t *)pbuf) + transfer_max;
504 length = length - transfer_max;
506 } while (length != 0);
512 libusb20_tr_submit(struct libusb20_transfer *xfer)
514 if (!xfer->is_opened) {
515 /* transfer is not opened */
518 if (xfer->is_pending) {
519 /* should not happen */
522 xfer->is_pending = 1; /* we are pending */
523 xfer->is_cancel = 0; /* not cancelling */
524 xfer->is_restart = 0; /* not restarting */
526 xfer->pdev->methods->tr_submit(xfer);
531 libusb20_tr_start(struct libusb20_transfer *xfer)
533 if (!xfer->is_opened) {
534 /* transfer is not opened */
537 if (xfer->is_pending) {
538 if (xfer->is_cancel) {
539 /* cancelling - restart */
540 xfer->is_restart = 1;
542 /* transfer not pending */
545 /* get into the callback */
546 libusb20_tr_callback_wrapper(xfer);
550 /* USB device operations */
553 libusb20_dev_close(struct libusb20_device *pdev)
555 struct libusb20_transfer *xfer;
559 if (!pdev->is_opened) {
560 return (LIBUSB20_ERROR_OTHER);
562 for (x = 0; x != pdev->nTransfer; x++) {
563 xfer = pdev->pTransfer + x;
565 if (!xfer->is_opened) {
566 /* transfer is not opened */
570 libusb20_tr_drain(xfer);
572 libusb20_tr_close(xfer);
575 if (pdev->pTransfer != NULL) {
576 free(pdev->pTransfer);
577 pdev->pTransfer = NULL;
579 error = pdev->beMethods->close_device(pdev);
581 pdev->methods = &libusb20_dummy_methods;
586 * The following variable is only used by the libusb v0.1
589 pdev->claimed_interface = 0;
595 libusb20_dev_detach_kernel_driver(struct libusb20_device *pdev, uint8_t ifaceIndex)
599 error = pdev->methods->detach_kernel_driver(pdev, ifaceIndex);
603 struct LIBUSB20_DEVICE_DESC_DECODED *
604 libusb20_dev_get_device_desc(struct libusb20_device *pdev)
606 return (&(pdev->ddesc));
610 libusb20_dev_get_fd(struct libusb20_device *pdev)
616 libusb20_dev_kernel_driver_active(struct libusb20_device *pdev, uint8_t ifaceIndex)
620 error = pdev->methods->kernel_driver_active(pdev, ifaceIndex);
625 libusb20_dev_open(struct libusb20_device *pdev, uint16_t nTransferMax)
627 struct libusb20_transfer *xfer;
632 if (pdev->is_opened) {
633 return (LIBUSB20_ERROR_BUSY);
635 if (nTransferMax >= 256) {
636 return (LIBUSB20_ERROR_INVALID_PARAM);
637 } else if (nTransferMax != 0) {
638 size = sizeof(pdev->pTransfer[0]) * nTransferMax;
639 pdev->pTransfer = malloc(size);
640 if (pdev->pTransfer == NULL) {
641 return (LIBUSB20_ERROR_NO_MEM);
643 memset(pdev->pTransfer, 0, size);
645 /* initialise all transfers */
646 for (x = 0; x != nTransferMax; x++) {
648 xfer = pdev->pTransfer + x;
652 xfer->callback = &dummy_callback;
655 /* set "nTransfer" early */
656 pdev->nTransfer = nTransferMax;
658 error = pdev->beMethods->open_device(pdev, nTransferMax);
661 if (pdev->pTransfer != NULL) {
662 free(pdev->pTransfer);
663 pdev->pTransfer = NULL;
666 pdev->file_ctrl = -1;
675 libusb20_dev_reset(struct libusb20_device *pdev)
679 error = pdev->methods->reset_device(pdev);
684 libusb20_dev_check_connected(struct libusb20_device *pdev)
688 error = pdev->methods->check_connected(pdev);
693 libusb20_dev_set_power_mode(struct libusb20_device *pdev, uint8_t power_mode)
697 error = pdev->methods->set_power_mode(pdev, power_mode);
702 libusb20_dev_get_power_mode(struct libusb20_device *pdev)
707 error = pdev->methods->get_power_mode(pdev, &power_mode);
709 power_mode = LIBUSB20_POWER_ON; /* fake power mode */
714 libusb20_dev_set_alt_index(struct libusb20_device *pdev, uint8_t ifaceIndex, uint8_t altIndex)
718 error = pdev->methods->set_alt_index(pdev, ifaceIndex, altIndex);
723 libusb20_dev_set_config_index(struct libusb20_device *pdev, uint8_t configIndex)
727 error = pdev->methods->set_config_index(pdev, configIndex);
732 libusb20_dev_request_sync(struct libusb20_device *pdev,
733 struct LIBUSB20_CONTROL_SETUP_DECODED *setup, void *data,
734 uint16_t *pactlen, uint32_t timeout, uint8_t flags)
738 error = pdev->methods->do_request_sync(pdev,
739 setup, data, pactlen, timeout, flags);
744 libusb20_dev_req_string_sync(struct libusb20_device *pdev,
745 uint8_t str_index, uint16_t langid, void *ptr, uint16_t len)
747 struct LIBUSB20_CONTROL_SETUP_DECODED req;
750 /* make sure memory is initialised */
755 return (LIBUSB20_ERROR_INVALID_PARAM);
757 LIBUSB20_INIT(LIBUSB20_CONTROL_SETUP, &req);
760 * We need to read the USB string in two steps else some USB
761 * devices will complain.
764 LIBUSB20_REQUEST_TYPE_STANDARD |
765 LIBUSB20_RECIPIENT_DEVICE |
766 LIBUSB20_ENDPOINT_IN;
767 req.bRequest = LIBUSB20_REQUEST_GET_DESCRIPTOR;
768 req.wValue = (LIBUSB20_DT_STRING << 8) | str_index;
770 req.wLength = 4; /* bytes */
772 error = libusb20_dev_request_sync(pdev, &req,
773 ptr, NULL, 1000, LIBUSB20_TRANSFER_SINGLE_SHORT_NOT_OK);
777 req.wLength = *(uint8_t *)ptr; /* bytes */
778 if (req.wLength > len) {
779 /* partial string read */
782 error = libusb20_dev_request_sync(pdev, &req,
783 ptr, NULL, 1000, LIBUSB20_TRANSFER_SINGLE_SHORT_NOT_OK);
788 if (((uint8_t *)ptr)[1] != LIBUSB20_DT_STRING) {
789 return (LIBUSB20_ERROR_OTHER);
791 return (0); /* success */
795 libusb20_dev_req_string_simple_sync(struct libusb20_device *pdev,
796 uint8_t str_index, void *ptr, uint16_t len)
807 /* the following code derives from the FreeBSD USB kernel */
809 if ((len < 1) || (ptr == NULL)) {
810 /* too short buffer */
811 return (LIBUSB20_ERROR_INVALID_PARAM);
813 error = libusb20_dev_req_string_sync(pdev,
814 0, 0, temp, sizeof(temp));
816 *(uint8_t *)ptr = 0; /* zero terminate */
819 langid = temp[2] | (temp[3] << 8);
821 error = libusb20_dev_req_string_sync(pdev, str_index,
822 langid, temp, sizeof(temp));
824 *(uint8_t *)ptr = 0; /* zero terminate */
828 /* string length is too short */
829 *(uint8_t *)ptr = 0; /* zero terminate */
830 return (LIBUSB20_ERROR_OTHER);
832 /* reserve one byte for terminating zero */
835 /* find maximum length */
836 n = (temp[0] / 2) - 1;
840 /* reset swap state */
843 /* setup output buffer pointer */
846 /* convert and filter */
847 for (i = 0; (i != n); i++) {
848 c = temp[(2 * i) + 2] | (temp[(2 * i) + 3] << 8);
850 /* convert from Unicode, handle buggy strings */
851 if (((c & 0xff00) == 0) && (swap & 1)) {
852 /* Little Endian, default */
855 } else if (((c & 0x00ff) == 0) && (swap & 2)) {
860 /* skip invalid character */
864 * Filter by default - we don't allow greater and less than
865 * signs because they might confuse the dmesg printouts!
867 if ((*buf == '<') || (*buf == '>') || (!isprint(*buf))) {
868 /* skip invalid character */
873 *buf = 0; /* zero terminate string */
878 struct libusb20_config *
879 libusb20_dev_alloc_config(struct libusb20_device *pdev, uint8_t configIndex)
881 struct libusb20_config *retval = NULL;
887 if (!pdev->is_opened) {
888 error = libusb20_dev_open(pdev, 0);
896 error = pdev->methods->get_config_desc_full(pdev,
897 &ptr, &len, configIndex);
902 /* parse new config descriptor */
903 retval = libusb20_parse_config_desc(ptr);
905 /* free config descriptor */
910 error = libusb20_dev_close(pdev);
915 struct libusb20_device *
916 libusb20_dev_alloc(void)
918 struct libusb20_device *pdev;
920 pdev = malloc(sizeof(*pdev));
924 memset(pdev, 0, sizeof(*pdev));
927 pdev->file_ctrl = -1;
928 pdev->methods = &libusb20_dummy_methods;
933 libusb20_dev_get_config_index(struct libusb20_device *pdev)
939 if (!pdev->is_opened) {
940 error = libusb20_dev_open(pdev, 0);
950 error = pdev->methods->get_config_index(pdev, &cfg_index);
952 cfg_index = 0 - 1; /* current config index */
955 if (libusb20_dev_close(pdev)) {
963 libusb20_dev_get_mode(struct libusb20_device *pdev)
965 return (pdev->usb_mode);
969 libusb20_dev_get_speed(struct libusb20_device *pdev)
971 return (pdev->usb_speed);
974 /* if this function returns an error, the device is gone */
976 libusb20_dev_process(struct libusb20_device *pdev)
980 error = pdev->methods->process(pdev);
985 libusb20_dev_wait_process(struct libusb20_device *pdev, int timeout)
987 struct pollfd pfd[1];
989 if (!pdev->is_opened) {
992 pfd[0].fd = pdev->file;
993 pfd[0].events = (POLLIN | POLLOUT | POLLRDNORM | POLLWRNORM);
996 if (poll(pfd, 1, timeout)) {
997 /* ignore any error */
1003 libusb20_dev_free(struct libusb20_device *pdev)
1009 if (pdev->is_opened) {
1010 if (libusb20_dev_close(pdev)) {
1011 /* ignore any errors */
1019 libusb20_dev_get_info(struct libusb20_device *pdev,
1020 struct usb_device_info *pinfo)
1023 return (LIBUSB20_ERROR_INVALID_PARAM);
1025 return (pdev->beMethods->dev_get_info(pdev, pinfo));
1029 libusb20_dev_get_backend_name(struct libusb20_device *pdev)
1031 return (pdev->beMethods->get_backend_name());
1035 libusb20_dev_get_desc(struct libusb20_device *pdev)
1037 return (pdev->usb_desc);
1041 libusb20_dev_set_debug(struct libusb20_device *pdev, int debug)
1043 pdev->debug = debug;
1048 libusb20_dev_get_debug(struct libusb20_device *pdev)
1050 return (pdev->debug);
1054 libusb20_dev_get_address(struct libusb20_device *pdev)
1056 return (pdev->device_address);
1060 libusb20_dev_get_parent_address(struct libusb20_device *pdev)
1062 return (pdev->parent_address);
1066 libusb20_dev_get_parent_port(struct libusb20_device *pdev)
1068 return (pdev->parent_port);
1072 libusb20_dev_get_bus_number(struct libusb20_device *pdev)
1074 return (pdev->bus_number);
1078 libusb20_dev_get_iface_desc(struct libusb20_device *pdev,
1079 uint8_t iface_index, char *buf, uint8_t len)
1081 if ((buf == NULL) || (len == 0))
1082 return (LIBUSB20_ERROR_INVALID_PARAM);
1084 buf[0] = 0; /* set default string value */
1086 return (pdev->beMethods->dev_get_iface_desc(
1087 pdev, iface_index, buf, len));
1090 /* USB backend operations */
1093 libusb20_be_get_dev_quirk(struct libusb20_backend *pbe,
1094 uint16_t quirk_index, struct libusb20_quirk *pq)
1096 return (pbe->methods->root_get_dev_quirk(pbe, quirk_index, pq));
1100 libusb20_be_get_quirk_name(struct libusb20_backend *pbe,
1101 uint16_t quirk_index, struct libusb20_quirk *pq)
1103 return (pbe->methods->root_get_quirk_name(pbe, quirk_index, pq));
1107 libusb20_be_add_dev_quirk(struct libusb20_backend *pbe,
1108 struct libusb20_quirk *pq)
1110 return (pbe->methods->root_add_dev_quirk(pbe, pq));
1114 libusb20_be_remove_dev_quirk(struct libusb20_backend *pbe,
1115 struct libusb20_quirk *pq)
1117 return (pbe->methods->root_remove_dev_quirk(pbe, pq));
1121 libusb20_be_set_template(struct libusb20_backend *pbe, int temp)
1123 return (pbe->methods->root_set_template(pbe, temp));
1127 libusb20_be_get_template(struct libusb20_backend *pbe, int *ptemp)
1134 return (pbe->methods->root_get_template(pbe, ptemp));
1137 struct libusb20_device *
1138 libusb20_be_device_foreach(struct libusb20_backend *pbe, struct libusb20_device *pdev)
1142 } else if (pdev == NULL) {
1143 pdev = TAILQ_FIRST(&(pbe->usb_devs));
1145 pdev = TAILQ_NEXT(pdev, dev_entry);
1150 struct libusb20_backend *
1151 libusb20_be_alloc(const struct libusb20_backend_methods *methods)
1153 struct libusb20_backend *pbe;
1155 pbe = malloc(sizeof(*pbe));
1159 memset(pbe, 0, sizeof(*pbe));
1161 TAILQ_INIT(&(pbe->usb_devs));
1163 pbe->methods = methods; /* set backend methods */
1165 /* do the initial device scan */
1166 if (pbe->methods->init_backend) {
1167 pbe->methods->init_backend(pbe);
1172 struct libusb20_backend *
1173 libusb20_be_alloc_linux(void)
1175 struct libusb20_backend *pbe;
1178 pbe = libusb20_be_alloc(&libusb20_linux_backend);
1185 struct libusb20_backend *
1186 libusb20_be_alloc_ugen20(void)
1188 struct libusb20_backend *pbe;
1190 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
1191 pbe = libusb20_be_alloc(&libusb20_ugen20_backend);
1198 struct libusb20_backend *
1199 libusb20_be_alloc_default(void)
1201 struct libusb20_backend *pbe;
1203 pbe = libusb20_be_alloc_linux();
1207 pbe = libusb20_be_alloc_ugen20();
1211 return (NULL); /* no backend found */
1215 libusb20_be_free(struct libusb20_backend *pbe)
1217 struct libusb20_device *pdev;
1223 while ((pdev = libusb20_be_device_foreach(pbe, NULL))) {
1224 libusb20_be_dequeue_device(pbe, pdev);
1225 libusb20_dev_free(pdev);
1227 if (pbe->methods->exit_backend) {
1228 pbe->methods->exit_backend(pbe);
1235 libusb20_be_enqueue_device(struct libusb20_backend *pbe, struct libusb20_device *pdev)
1237 pdev->beMethods = pbe->methods; /* copy backend methods */
1238 TAILQ_INSERT_TAIL(&(pbe->usb_devs), pdev, dev_entry);
1242 libusb20_be_dequeue_device(struct libusb20_backend *pbe,
1243 struct libusb20_device *pdev)
1245 TAILQ_REMOVE(&(pbe->usb_devs), pdev, dev_entry);
1249 libusb20_strerror(int code)
1252 case LIBUSB20_SUCCESS:
1254 case LIBUSB20_ERROR_IO:
1255 return ("I/O error");
1256 case LIBUSB20_ERROR_INVALID_PARAM:
1257 return ("Invalid parameter");
1258 case LIBUSB20_ERROR_ACCESS:
1259 return ("Permissions error");
1260 case LIBUSB20_ERROR_NO_DEVICE:
1261 return ("No device");
1262 case LIBUSB20_ERROR_NOT_FOUND:
1263 return ("Not found");
1264 case LIBUSB20_ERROR_BUSY:
1265 return ("Device busy");
1266 case LIBUSB20_ERROR_TIMEOUT:
1268 case LIBUSB20_ERROR_OVERFLOW:
1269 return ("Overflow");
1270 case LIBUSB20_ERROR_PIPE:
1271 return ("Pipe error");
1272 case LIBUSB20_ERROR_INTERRUPTED:
1273 return ("Interrupted");
1274 case LIBUSB20_ERROR_NO_MEM:
1275 return ("Out of memory");
1276 case LIBUSB20_ERROR_NOT_SUPPORTED:
1277 return ("Not supported");
1278 case LIBUSB20_ERROR_OTHER:
1279 return ("Other error");
1281 return ("Unknown error");
1286 libusb20_error_name(int code)
1289 case LIBUSB20_SUCCESS:
1290 return ("LIBUSB20_SUCCESS");
1291 case LIBUSB20_ERROR_IO:
1292 return ("LIBUSB20_ERROR_IO");
1293 case LIBUSB20_ERROR_INVALID_PARAM:
1294 return ("LIBUSB20_ERROR_INVALID_PARAM");
1295 case LIBUSB20_ERROR_ACCESS:
1296 return ("LIBUSB20_ERROR_ACCESS");
1297 case LIBUSB20_ERROR_NO_DEVICE:
1298 return ("LIBUSB20_ERROR_NO_DEVICE");
1299 case LIBUSB20_ERROR_NOT_FOUND:
1300 return ("LIBUSB20_ERROR_NOT_FOUND");
1301 case LIBUSB20_ERROR_BUSY:
1302 return ("LIBUSB20_ERROR_BUSY");
1303 case LIBUSB20_ERROR_TIMEOUT:
1304 return ("LIBUSB20_ERROR_TIMEOUT");
1305 case LIBUSB20_ERROR_OVERFLOW:
1306 return ("LIBUSB20_ERROR_OVERFLOW");
1307 case LIBUSB20_ERROR_PIPE:
1308 return ("LIBUSB20_ERROR_PIPE");
1309 case LIBUSB20_ERROR_INTERRUPTED:
1310 return ("LIBUSB20_ERROR_INTERRUPTED");
1311 case LIBUSB20_ERROR_NO_MEM:
1312 return ("LIBUSB20_ERROR_NO_MEM");
1313 case LIBUSB20_ERROR_NOT_SUPPORTED:
1314 return ("LIBUSB20_ERROR_NOT_SUPPORTED");
1315 case LIBUSB20_ERROR_OTHER:
1316 return ("LIBUSB20_ERROR_OTHER");
1318 return ("LIBUSB20_ERROR_UNKNOWN");