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 #ifdef LIBUSB_GLOBAL_INCLUDE_FILE
28 #include LIBUSB_GLOBAL_INCLUDE_FILE
36 #include <sys/queue.h>
40 #include "libusb20_desc.h"
41 #include "libusb20_int.h"
46 return (LIBUSB20_ERROR_NOT_SUPPORTED);
56 dummy_callback(struct libusb20_transfer *xfer)
59 switch (libusb20_tr_get_status(xfer)) {
60 case LIBUSB20_TRANSFER_START:
61 libusb20_tr_submit(xfer);
64 /* complete or error */
70 #define dummy_get_config_desc_full (void *)dummy_int
71 #define dummy_get_config_index (void *)dummy_int
72 #define dummy_set_config_index (void *)dummy_int
73 #define dummy_set_alt_index (void *)dummy_int
74 #define dummy_reset_device (void *)dummy_int
75 #define dummy_check_connected (void *)dummy_int
76 #define dummy_set_power_mode (void *)dummy_int
77 #define dummy_get_power_mode (void *)dummy_int
78 #define dummy_get_power_usage (void *)dummy_int
79 #define dummy_kernel_driver_active (void *)dummy_int
80 #define dummy_detach_kernel_driver (void *)dummy_int
81 #define dummy_do_request_sync (void *)dummy_int
82 #define dummy_tr_open (void *)dummy_int
83 #define dummy_tr_close (void *)dummy_int
84 #define dummy_tr_clear_stall_sync (void *)dummy_int
85 #define dummy_process (void *)dummy_int
86 #define dummy_dev_info (void *)dummy_int
87 #define dummy_dev_get_iface_driver (void *)dummy_int
89 #define dummy_tr_submit (void *)dummy_void
90 #define dummy_tr_cancel_async (void *)dummy_void
92 static const struct libusb20_device_methods libusb20_dummy_methods = {
93 LIBUSB20_DEVICE(LIBUSB20_DECLARE, dummy)
97 libusb20_tr_callback_wrapper(struct libusb20_transfer *xfer)
103 if (!xfer->is_pending) {
104 xfer->status = LIBUSB20_TRANSFER_START;
106 xfer->is_pending = 0;
109 xfer->callback(xfer);
111 if (xfer->is_restart) {
112 xfer->is_restart = 0;
115 if (xfer->is_draining &&
116 (!xfer->is_pending)) {
117 xfer->is_draining = 0;
118 xfer->status = LIBUSB20_TRANSFER_DRAINED;
119 xfer->callback(xfer);
125 libusb20_tr_close(struct libusb20_transfer *xfer)
129 if (!xfer->is_opened) {
130 return (LIBUSB20_ERROR_OTHER);
132 error = xfer->pdev->methods->tr_close(xfer);
137 if (xfer->ppBuffer) {
138 free(xfer->ppBuffer);
140 /* reset variable fields in case the transfer is opened again */
141 xfer->priv_sc0 = NULL;
142 xfer->priv_sc1 = NULL;
144 xfer->is_pending = 0;
146 xfer->is_draining = 0;
147 xfer->is_restart = 0;
154 xfer->maxTotalLength = 0;
155 xfer->maxPacketLen = 0;
160 libusb20_tr_open(struct libusb20_transfer *xfer, uint32_t MaxBufSize,
161 uint32_t MaxFrameCount, uint8_t ep_no)
163 return (libusb20_tr_open_stream(xfer, MaxBufSize, MaxFrameCount, ep_no, 0));
167 libusb20_tr_open_stream(struct libusb20_transfer *xfer, uint32_t MaxBufSize,
168 uint32_t MaxFrameCount, uint8_t ep_no, uint16_t stream_id)
175 return (LIBUSB20_ERROR_BUSY);
176 if (MaxFrameCount & LIBUSB20_MAX_FRAME_PRE_SCALE) {
177 MaxFrameCount &= ~LIBUSB20_MAX_FRAME_PRE_SCALE;
179 * The kernel can setup 8 times more frames when
180 * pre-scaling ISOCHRONOUS transfers. Make sure the
181 * length and pointer buffers are big enough:
188 if (MaxFrameCount == 0)
189 return (LIBUSB20_ERROR_INVALID_PARAM);
191 xfer->maxFrames = MaxFrameCount;
193 size = MaxFrameCount * sizeof(xfer->pLength[0]);
194 xfer->pLength = malloc(size);
195 if (xfer->pLength == NULL) {
196 return (LIBUSB20_ERROR_NO_MEM);
198 memset(xfer->pLength, 0, size);
200 size = MaxFrameCount * sizeof(xfer->ppBuffer[0]);
201 xfer->ppBuffer = malloc(size);
202 if (xfer->ppBuffer == NULL) {
204 return (LIBUSB20_ERROR_NO_MEM);
206 memset(xfer->ppBuffer, 0, size);
209 error = xfer->pdev->methods->tr_open(xfer, MaxBufSize,
210 MaxFrameCount / 8, ep_no, stream_id, 1);
212 error = xfer->pdev->methods->tr_open(xfer, MaxBufSize,
213 MaxFrameCount, ep_no, stream_id, 0);
217 free(xfer->ppBuffer);
225 struct libusb20_transfer *
226 libusb20_tr_get_pointer(struct libusb20_device *pdev, uint16_t trIndex)
228 if (trIndex >= pdev->nTransfer) {
231 return (pdev->pTransfer + trIndex);
235 libusb20_tr_get_actual_frames(struct libusb20_transfer *xfer)
237 return (xfer->aFrames);
241 libusb20_tr_get_time_complete(struct libusb20_transfer *xfer)
243 return (xfer->timeComplete);
247 libusb20_tr_get_actual_length(struct libusb20_transfer *xfer)
252 for (x = 0; x != xfer->aFrames; x++) {
253 actlen += xfer->pLength[x];
259 libusb20_tr_get_max_frames(struct libusb20_transfer *xfer)
261 return (xfer->maxFrames);
265 libusb20_tr_get_max_packet_length(struct libusb20_transfer *xfer)
268 * Special Case NOTE: If the packet multiplier is non-zero for
269 * High Speed USB, the value returned is equal to
270 * "wMaxPacketSize * multiplier" !
272 return (xfer->maxPacketLen);
276 libusb20_tr_get_max_total_length(struct libusb20_transfer *xfer)
278 return (xfer->maxTotalLength);
282 libusb20_tr_get_status(struct libusb20_transfer *xfer)
284 return (xfer->status);
288 libusb20_tr_pending(struct libusb20_transfer *xfer)
290 return (xfer->is_pending);
294 libusb20_tr_get_priv_sc0(struct libusb20_transfer *xfer)
296 return (xfer->priv_sc0);
300 libusb20_tr_get_priv_sc1(struct libusb20_transfer *xfer)
302 return (xfer->priv_sc1);
306 libusb20_tr_stop(struct libusb20_transfer *xfer)
308 if (!xfer->is_opened) {
309 /* transfer is not opened */
312 if (!xfer->is_pending) {
313 /* transfer not pending */
316 if (xfer->is_cancel) {
317 /* already cancelling */
320 xfer->is_cancel = 1; /* we are cancelling */
322 xfer->pdev->methods->tr_cancel_async(xfer);
327 libusb20_tr_drain(struct libusb20_transfer *xfer)
329 if (!xfer->is_opened) {
330 /* transfer is not opened */
333 /* make sure that we are cancelling */
334 libusb20_tr_stop(xfer);
336 if (xfer->is_pending) {
337 xfer->is_draining = 1;
343 libusb20_tr_clear_stall_sync(struct libusb20_transfer *xfer)
345 xfer->pdev->methods->tr_clear_stall_sync(xfer);
350 libusb20_tr_set_buffer(struct libusb20_transfer *xfer, void *buffer, uint16_t frIndex)
352 xfer->ppBuffer[frIndex] = libusb20_pass_ptr(buffer);
357 libusb20_tr_set_callback(struct libusb20_transfer *xfer, libusb20_tr_callback_t *cb)
364 libusb20_tr_set_flags(struct libusb20_transfer *xfer, uint8_t flags)
371 libusb20_tr_get_length(struct libusb20_transfer *xfer, uint16_t frIndex)
373 return (xfer->pLength[frIndex]);
377 libusb20_tr_set_length(struct libusb20_transfer *xfer, uint32_t length, uint16_t frIndex)
379 xfer->pLength[frIndex] = length;
384 libusb20_tr_set_priv_sc0(struct libusb20_transfer *xfer, void *sc0)
386 xfer->priv_sc0 = sc0;
391 libusb20_tr_set_priv_sc1(struct libusb20_transfer *xfer, void *sc1)
393 xfer->priv_sc1 = sc1;
398 libusb20_tr_set_timeout(struct libusb20_transfer *xfer, uint32_t timeout)
400 xfer->timeout = timeout;
405 libusb20_tr_set_total_frames(struct libusb20_transfer *xfer, uint32_t nFrames)
407 if (nFrames > xfer->maxFrames) {
408 /* should not happen */
409 nFrames = xfer->maxFrames;
411 xfer->nFrames = nFrames;
416 libusb20_tr_setup_bulk(struct libusb20_transfer *xfer, void *pBuf, uint32_t length, uint32_t timeout)
418 xfer->ppBuffer[0] = libusb20_pass_ptr(pBuf);
419 xfer->pLength[0] = length;
420 xfer->timeout = timeout;
426 libusb20_tr_setup_control(struct libusb20_transfer *xfer, void *psetup, void *pBuf, uint32_t timeout)
430 xfer->ppBuffer[0] = libusb20_pass_ptr(psetup);
431 xfer->pLength[0] = 8; /* fixed */
432 xfer->timeout = timeout;
434 len = ((uint8_t *)psetup)[6] | (((uint8_t *)psetup)[7] << 8);
438 xfer->ppBuffer[1] = libusb20_pass_ptr(pBuf);
439 xfer->pLength[1] = len;
447 libusb20_tr_setup_intr(struct libusb20_transfer *xfer, void *pBuf, uint32_t length, uint32_t timeout)
449 xfer->ppBuffer[0] = libusb20_pass_ptr(pBuf);
450 xfer->pLength[0] = length;
451 xfer->timeout = timeout;
457 libusb20_tr_setup_isoc(struct libusb20_transfer *xfer, void *pBuf, uint32_t length, uint16_t frIndex)
459 if (frIndex >= xfer->maxFrames) {
460 /* should not happen */
463 xfer->ppBuffer[frIndex] = libusb20_pass_ptr(pBuf);
464 xfer->pLength[frIndex] = length;
469 libusb20_tr_bulk_intr_sync(struct libusb20_transfer *xfer,
470 void *pbuf, uint32_t length, uint32_t *pactlen,
473 struct libusb20_device *pdev = xfer->pdev;
474 uint32_t transfer_max;
475 uint32_t transfer_act;
478 /* set some sensible default value */
482 /* check for error condition */
483 if (libusb20_tr_pending(xfer))
484 return (LIBUSB20_ERROR_OTHER);
487 /* compute maximum transfer length */
489 libusb20_tr_get_max_total_length(xfer);
491 if (transfer_max > length)
492 transfer_max = length;
494 /* setup bulk or interrupt transfer */
495 libusb20_tr_setup_bulk(xfer, pbuf,
496 transfer_max, timeout);
498 /* start the transfer */
499 libusb20_tr_start(xfer);
501 /* wait for transfer completion */
502 while (libusb20_dev_process(pdev) == 0) {
504 if (libusb20_tr_pending(xfer) == 0)
507 libusb20_dev_wait_process(pdev, -1);
510 transfer_act = libusb20_tr_get_actual_length(xfer);
512 /* update actual length, if any */
514 pactlen[0] += transfer_act;
516 /* check transfer status */
517 retval = libusb20_tr_get_status(xfer);
521 /* check for short transfer */
522 if (transfer_act != transfer_max)
525 /* update buffer pointer and length */
526 pbuf = ((uint8_t *)pbuf) + transfer_max;
527 length = length - transfer_max;
529 } while (length != 0);
535 libusb20_tr_submit(struct libusb20_transfer *xfer)
537 if (!xfer->is_opened) {
538 /* transfer is not opened */
541 if (xfer->is_pending) {
542 /* should not happen */
545 xfer->is_pending = 1; /* we are pending */
546 xfer->is_cancel = 0; /* not cancelling */
547 xfer->is_restart = 0; /* not restarting */
549 xfer->pdev->methods->tr_submit(xfer);
554 libusb20_tr_start(struct libusb20_transfer *xfer)
556 if (!xfer->is_opened) {
557 /* transfer is not opened */
560 if (xfer->is_pending) {
561 if (xfer->is_cancel) {
562 /* cancelling - restart */
563 xfer->is_restart = 1;
565 /* transfer not pending */
568 /* get into the callback */
569 libusb20_tr_callback_wrapper(xfer);
573 /* USB device operations */
576 libusb20_dev_close(struct libusb20_device *pdev)
578 struct libusb20_transfer *xfer;
582 if (!pdev->is_opened) {
583 return (LIBUSB20_ERROR_OTHER);
585 for (x = 0; x != pdev->nTransfer; x++) {
586 xfer = pdev->pTransfer + x;
588 if (!xfer->is_opened) {
589 /* transfer is not opened */
593 libusb20_tr_drain(xfer);
595 libusb20_tr_close(xfer);
598 if (pdev->pTransfer != NULL) {
599 free(pdev->pTransfer);
600 pdev->pTransfer = NULL;
602 error = pdev->beMethods->close_device(pdev);
604 pdev->methods = &libusb20_dummy_methods;
609 * The following variable is only used by the libusb v0.1
612 pdev->claimed_interface = 0;
615 * The following variable is only used by the libusb v1.0
618 pdev->auto_detach = 0;
624 libusb20_dev_detach_kernel_driver(struct libusb20_device *pdev, uint8_t ifaceIndex)
628 error = pdev->methods->detach_kernel_driver(pdev, ifaceIndex);
632 struct LIBUSB20_DEVICE_DESC_DECODED *
633 libusb20_dev_get_device_desc(struct libusb20_device *pdev)
635 return (&(pdev->ddesc));
639 libusb20_dev_get_fd(struct libusb20_device *pdev)
645 libusb20_dev_kernel_driver_active(struct libusb20_device *pdev, uint8_t ifaceIndex)
649 error = pdev->methods->kernel_driver_active(pdev, ifaceIndex);
654 libusb20_dev_open(struct libusb20_device *pdev, uint16_t nTransferMax)
656 struct libusb20_transfer *xfer;
661 if (pdev->is_opened) {
662 return (LIBUSB20_ERROR_BUSY);
664 if (nTransferMax >= 256) {
665 return (LIBUSB20_ERROR_INVALID_PARAM);
666 } else if (nTransferMax != 0) {
667 size = sizeof(pdev->pTransfer[0]) * nTransferMax;
668 pdev->pTransfer = malloc(size);
669 if (pdev->pTransfer == NULL) {
670 return (LIBUSB20_ERROR_NO_MEM);
672 memset(pdev->pTransfer, 0, size);
674 /* initialise all transfers */
675 for (x = 0; x != nTransferMax; x++) {
677 xfer = pdev->pTransfer + x;
681 xfer->callback = &dummy_callback;
684 /* set "nTransfer" early */
685 pdev->nTransfer = nTransferMax;
687 error = pdev->beMethods->open_device(pdev, nTransferMax);
690 if (pdev->pTransfer != NULL) {
691 free(pdev->pTransfer);
692 pdev->pTransfer = NULL;
695 pdev->file_ctrl = -1;
704 libusb20_dev_reset(struct libusb20_device *pdev)
708 error = pdev->methods->reset_device(pdev);
713 libusb20_dev_check_connected(struct libusb20_device *pdev)
717 error = pdev->methods->check_connected(pdev);
722 libusb20_dev_set_power_mode(struct libusb20_device *pdev, uint8_t power_mode)
726 error = pdev->methods->set_power_mode(pdev, power_mode);
731 libusb20_dev_get_power_mode(struct libusb20_device *pdev)
736 error = pdev->methods->get_power_mode(pdev, &power_mode);
738 power_mode = LIBUSB20_POWER_ON; /* fake power mode */
743 libusb20_dev_get_port_path(struct libusb20_device *pdev, uint8_t *buf, uint8_t bufsize)
746 if (pdev->port_level == 0) {
748 * Fallback for backends without port path:
751 return (LIBUSB20_ERROR_OVERFLOW);
752 buf[0] = pdev->parent_address;
753 buf[1] = pdev->parent_port;
757 /* check if client buffer is too small */
758 if (pdev->port_level > bufsize)
759 return (LIBUSB20_ERROR_OVERFLOW);
761 /* copy port number information */
762 memcpy(buf, pdev->port_path, pdev->port_level);
764 return (pdev->port_level); /* success */
768 libusb20_dev_get_power_usage(struct libusb20_device *pdev)
771 uint16_t power_usage;
773 error = pdev->methods->get_power_usage(pdev, &power_usage);
776 return (power_usage);
780 libusb20_dev_set_alt_index(struct libusb20_device *pdev, uint8_t ifaceIndex, uint8_t altIndex)
784 error = pdev->methods->set_alt_index(pdev, ifaceIndex, altIndex);
789 libusb20_dev_set_config_index(struct libusb20_device *pdev, uint8_t configIndex)
793 error = pdev->methods->set_config_index(pdev, configIndex);
798 libusb20_dev_request_sync(struct libusb20_device *pdev,
799 struct LIBUSB20_CONTROL_SETUP_DECODED *setup, void *data,
800 uint16_t *pactlen, uint32_t timeout, uint8_t flags)
804 error = pdev->methods->do_request_sync(pdev,
805 setup, data, pactlen, timeout, flags);
810 libusb20_dev_req_string_sync(struct libusb20_device *pdev,
811 uint8_t str_index, uint16_t langid, void *ptr, uint16_t len)
813 struct LIBUSB20_CONTROL_SETUP_DECODED req;
817 /* make sure memory is initialised */
822 return (LIBUSB20_ERROR_INVALID_PARAM);
824 LIBUSB20_INIT(LIBUSB20_CONTROL_SETUP, &req);
827 * We need to read the USB string in two steps else some USB
828 * devices will complain.
831 LIBUSB20_REQUEST_TYPE_STANDARD |
832 LIBUSB20_RECIPIENT_DEVICE |
833 LIBUSB20_ENDPOINT_IN;
834 req.bRequest = LIBUSB20_REQUEST_GET_DESCRIPTOR;
835 req.wValue = (LIBUSB20_DT_STRING << 8) | str_index;
837 req.wLength = 4; /* bytes */
839 error = libusb20_dev_request_sync(pdev, &req,
840 ptr, NULL, 1000, LIBUSB20_TRANSFER_SINGLE_SHORT_NOT_OK);
842 /* try to request full string */
846 /* extract length and request full string */
847 req.wLength = *(uint8_t *)ptr;
848 flags = LIBUSB20_TRANSFER_SINGLE_SHORT_NOT_OK;
850 if (req.wLength > len) {
851 /* partial string read */
854 error = libusb20_dev_request_sync(pdev, &req, ptr, NULL, 1000, flags);
858 if (((uint8_t *)ptr)[1] != LIBUSB20_DT_STRING)
859 return (LIBUSB20_ERROR_OTHER);
860 return (0); /* success */
864 libusb20_dev_req_string_simple_sync(struct libusb20_device *pdev,
865 uint8_t str_index, void *ptr, uint16_t len)
876 /* the following code derives from the FreeBSD USB kernel */
878 if ((len < 1) || (ptr == NULL)) {
879 /* too short buffer */
880 return (LIBUSB20_ERROR_INVALID_PARAM);
882 error = libusb20_dev_req_string_sync(pdev,
883 0, 0, temp, sizeof(temp));
885 *(uint8_t *)ptr = 0; /* zero terminate */
888 langid = temp[2] | (temp[3] << 8);
890 error = libusb20_dev_req_string_sync(pdev, str_index,
891 langid, temp, sizeof(temp));
893 *(uint8_t *)ptr = 0; /* zero terminate */
897 /* string length is too short */
898 *(uint8_t *)ptr = 0; /* zero terminate */
899 return (LIBUSB20_ERROR_OTHER);
901 /* reserve one byte for terminating zero */
904 /* find maximum length */
905 n = (temp[0] / 2) - 1;
909 /* reset swap state */
912 /* setup output buffer pointer */
915 /* convert and filter */
916 for (i = 0; (i != n); i++) {
917 c = temp[(2 * i) + 2] | (temp[(2 * i) + 3] << 8);
919 /* convert from Unicode, handle buggy strings */
920 if (((c & 0xff00) == 0) && (swap & 1)) {
921 /* Little Endian, default */
924 } else if (((c & 0x00ff) == 0) && (swap & 2)) {
929 /* skip invalid character */
933 * Filter by default - we don't allow greater and less than
934 * signs because they might confuse the dmesg printouts!
936 if ((*buf == '<') || (*buf == '>') || (!isprint(*buf))) {
937 /* skip invalid character */
942 *buf = 0; /* zero terminate string */
947 struct libusb20_config *
948 libusb20_dev_alloc_config(struct libusb20_device *pdev, uint8_t configIndex)
950 struct libusb20_config *retval = NULL;
957 * Catch invalid configuration descriptor reads early on to
958 * avoid issues with devices that don't check for a valid USB
959 * configuration read request.
961 if (configIndex >= pdev->ddesc.bNumConfigurations)
964 if (!pdev->is_opened) {
965 error = libusb20_dev_open(pdev, 0);
973 error = pdev->methods->get_config_desc_full(pdev,
974 &ptr, &len, configIndex);
979 /* parse new config descriptor */
980 retval = libusb20_parse_config_desc(ptr);
982 /* free config descriptor */
987 error = libusb20_dev_close(pdev);
992 struct libusb20_device *
993 libusb20_dev_alloc(void)
995 struct libusb20_device *pdev;
997 pdev = malloc(sizeof(*pdev));
1001 memset(pdev, 0, sizeof(*pdev));
1004 pdev->file_ctrl = -1;
1005 pdev->methods = &libusb20_dummy_methods;
1010 libusb20_dev_get_config_index(struct libusb20_device *pdev)
1016 if (!pdev->is_opened) {
1017 error = libusb20_dev_open(pdev, 0);
1027 error = pdev->methods->get_config_index(pdev, &cfg_index);
1029 cfg_index = 0xFF; /* current config index */
1031 if (libusb20_dev_close(pdev)) {
1039 libusb20_dev_get_mode(struct libusb20_device *pdev)
1041 return (pdev->usb_mode);
1045 libusb20_dev_get_speed(struct libusb20_device *pdev)
1047 return (pdev->usb_speed);
1050 /* if this function returns an error, the device is gone */
1052 libusb20_dev_process(struct libusb20_device *pdev)
1056 error = pdev->methods->process(pdev);
1061 libusb20_dev_wait_process(struct libusb20_device *pdev, int timeout)
1063 struct pollfd pfd[1];
1065 if (!pdev->is_opened) {
1068 pfd[0].fd = pdev->file;
1069 pfd[0].events = (POLLIN | POLLOUT | POLLRDNORM | POLLWRNORM);
1072 if (poll(pfd, 1, timeout)) {
1073 /* ignore any error */
1079 libusb20_dev_free(struct libusb20_device *pdev)
1085 if (pdev->is_opened) {
1086 if (libusb20_dev_close(pdev)) {
1087 /* ignore any errors */
1095 libusb20_dev_get_info(struct libusb20_device *pdev,
1096 struct usb_device_info *pinfo)
1099 return (LIBUSB20_ERROR_INVALID_PARAM);
1101 return (pdev->beMethods->dev_get_info(pdev, pinfo));
1105 libusb20_dev_get_backend_name(struct libusb20_device *pdev)
1107 return (pdev->beMethods->get_backend_name());
1111 libusb20_dev_get_desc(struct libusb20_device *pdev)
1113 return (pdev->usb_desc);
1117 libusb20_dev_set_debug(struct libusb20_device *pdev, int debug)
1119 pdev->debug = debug;
1124 libusb20_dev_get_debug(struct libusb20_device *pdev)
1126 return (pdev->debug);
1130 libusb20_dev_get_address(struct libusb20_device *pdev)
1132 return (pdev->device_address);
1136 libusb20_dev_get_parent_address(struct libusb20_device *pdev)
1138 return (pdev->parent_address);
1142 libusb20_dev_get_parent_port(struct libusb20_device *pdev)
1144 return (pdev->parent_port);
1148 libusb20_dev_get_bus_number(struct libusb20_device *pdev)
1150 return (pdev->bus_number);
1154 libusb20_dev_get_iface_desc(struct libusb20_device *pdev,
1155 uint8_t iface_index, char *buf, uint8_t len)
1157 if ((buf == NULL) || (len == 0))
1158 return (LIBUSB20_ERROR_INVALID_PARAM);
1160 buf[0] = 0; /* set default string value */
1162 return (pdev->beMethods->dev_get_iface_desc(
1163 pdev, iface_index, buf, len));
1166 /* USB backend operations */
1169 libusb20_be_get_dev_quirk(struct libusb20_backend *pbe,
1170 uint16_t quirk_index, struct libusb20_quirk *pq)
1172 return (pbe->methods->root_get_dev_quirk(pbe, quirk_index, pq));
1176 libusb20_be_get_quirk_name(struct libusb20_backend *pbe,
1177 uint16_t quirk_index, struct libusb20_quirk *pq)
1179 return (pbe->methods->root_get_quirk_name(pbe, quirk_index, pq));
1183 libusb20_be_add_dev_quirk(struct libusb20_backend *pbe,
1184 struct libusb20_quirk *pq)
1186 return (pbe->methods->root_add_dev_quirk(pbe, pq));
1190 libusb20_be_remove_dev_quirk(struct libusb20_backend *pbe,
1191 struct libusb20_quirk *pq)
1193 return (pbe->methods->root_remove_dev_quirk(pbe, pq));
1197 libusb20_be_set_template(struct libusb20_backend *pbe, int temp)
1199 return (pbe->methods->root_set_template(pbe, temp));
1203 libusb20_be_get_template(struct libusb20_backend *pbe, int *ptemp)
1210 return (pbe->methods->root_get_template(pbe, ptemp));
1213 struct libusb20_device *
1214 libusb20_be_device_foreach(struct libusb20_backend *pbe, struct libusb20_device *pdev)
1218 } else if (pdev == NULL) {
1219 pdev = TAILQ_FIRST(&(pbe->usb_devs));
1221 pdev = TAILQ_NEXT(pdev, dev_entry);
1226 struct libusb20_backend *
1227 libusb20_be_alloc(const struct libusb20_backend_methods *methods)
1229 struct libusb20_backend *pbe;
1231 pbe = malloc(sizeof(*pbe));
1235 memset(pbe, 0, sizeof(*pbe));
1237 TAILQ_INIT(&(pbe->usb_devs));
1239 pbe->methods = methods; /* set backend methods */
1241 /* do the initial device scan */
1242 if (pbe->methods->init_backend) {
1243 pbe->methods->init_backend(pbe);
1248 struct libusb20_backend *
1249 libusb20_be_alloc_linux(void)
1254 struct libusb20_backend *
1255 libusb20_be_alloc_ugen20(void)
1257 return (libusb20_be_alloc(&libusb20_ugen20_backend));
1260 struct libusb20_backend *
1261 libusb20_be_alloc_default(void)
1263 struct libusb20_backend *pbe;
1266 pbe = libusb20_be_alloc_linux();
1271 pbe = libusb20_be_alloc_ugen20();
1275 return (NULL); /* no backend found */
1279 libusb20_be_free(struct libusb20_backend *pbe)
1281 struct libusb20_device *pdev;
1287 while ((pdev = libusb20_be_device_foreach(pbe, NULL))) {
1288 libusb20_be_dequeue_device(pbe, pdev);
1289 libusb20_dev_free(pdev);
1291 if (pbe->methods->exit_backend) {
1292 pbe->methods->exit_backend(pbe);
1299 libusb20_be_enqueue_device(struct libusb20_backend *pbe, struct libusb20_device *pdev)
1301 pdev->beMethods = pbe->methods; /* copy backend methods */
1302 TAILQ_INSERT_TAIL(&(pbe->usb_devs), pdev, dev_entry);
1306 libusb20_be_dequeue_device(struct libusb20_backend *pbe,
1307 struct libusb20_device *pdev)
1309 TAILQ_REMOVE(&(pbe->usb_devs), pdev, dev_entry);
1313 libusb20_strerror(int code)
1316 case LIBUSB20_SUCCESS:
1318 case LIBUSB20_ERROR_IO:
1319 return ("I/O error");
1320 case LIBUSB20_ERROR_INVALID_PARAM:
1321 return ("Invalid parameter");
1322 case LIBUSB20_ERROR_ACCESS:
1323 return ("Permissions error");
1324 case LIBUSB20_ERROR_NO_DEVICE:
1325 return ("No device");
1326 case LIBUSB20_ERROR_NOT_FOUND:
1327 return ("Not found");
1328 case LIBUSB20_ERROR_BUSY:
1329 return ("Device busy");
1330 case LIBUSB20_ERROR_TIMEOUT:
1332 case LIBUSB20_ERROR_OVERFLOW:
1333 return ("Overflow");
1334 case LIBUSB20_ERROR_PIPE:
1335 return ("Pipe error");
1336 case LIBUSB20_ERROR_INTERRUPTED:
1337 return ("Interrupted");
1338 case LIBUSB20_ERROR_NO_MEM:
1339 return ("Out of memory");
1340 case LIBUSB20_ERROR_NOT_SUPPORTED:
1341 return ("Not supported");
1342 case LIBUSB20_ERROR_OTHER:
1343 return ("Other error");
1345 return ("Unknown error");
1350 libusb20_error_name(int code)
1353 case LIBUSB20_SUCCESS:
1354 return ("LIBUSB20_SUCCESS");
1355 case LIBUSB20_ERROR_IO:
1356 return ("LIBUSB20_ERROR_IO");
1357 case LIBUSB20_ERROR_INVALID_PARAM:
1358 return ("LIBUSB20_ERROR_INVALID_PARAM");
1359 case LIBUSB20_ERROR_ACCESS:
1360 return ("LIBUSB20_ERROR_ACCESS");
1361 case LIBUSB20_ERROR_NO_DEVICE:
1362 return ("LIBUSB20_ERROR_NO_DEVICE");
1363 case LIBUSB20_ERROR_NOT_FOUND:
1364 return ("LIBUSB20_ERROR_NOT_FOUND");
1365 case LIBUSB20_ERROR_BUSY:
1366 return ("LIBUSB20_ERROR_BUSY");
1367 case LIBUSB20_ERROR_TIMEOUT:
1368 return ("LIBUSB20_ERROR_TIMEOUT");
1369 case LIBUSB20_ERROR_OVERFLOW:
1370 return ("LIBUSB20_ERROR_OVERFLOW");
1371 case LIBUSB20_ERROR_PIPE:
1372 return ("LIBUSB20_ERROR_PIPE");
1373 case LIBUSB20_ERROR_INTERRUPTED:
1374 return ("LIBUSB20_ERROR_INTERRUPTED");
1375 case LIBUSB20_ERROR_NO_MEM:
1376 return ("LIBUSB20_ERROR_NO_MEM");
1377 case LIBUSB20_ERROR_NOT_SUPPORTED:
1378 return ("LIBUSB20_ERROR_NOT_SUPPORTED");
1379 case LIBUSB20_ERROR_OTHER:
1380 return ("LIBUSB20_ERROR_OTHER");
1382 return ("LIBUSB20_ERROR_UNKNOWN");