lib/libusb/libusb20.c

56 dummy_callback(struct libusb20_transfer *xfer)
59 	switch (libusb20_tr_get_status(xfer)) {
61 		libusb20_tr_submit(xfer);
98 libusb20_tr_callback_wrapper(struct libusb20_transfer *xfer)
104 	if (!xfer->is_pending) {
105 		xfer->status = LIBUSB20_TRANSFER_START;
107 		xfer->is_pending = 0;
110 	xfer->callback(xfer);
112 	if (xfer->is_restart) {
113 		xfer->is_restart = 0;
116 	if (xfer->is_draining &&
117 	    (!xfer->is_pending)) {
118 		xfer->is_draining = 0;
119 		xfer->status = LIBUSB20_TRANSFER_DRAINED;
120 		xfer->callback(xfer);
126 libusb20_tr_close(struct libusb20_transfer *xfer)
130 	if (!xfer->is_opened) {
133 	error = xfer->pdev->methods->tr_close(xfer);
135 	if (xfer->pLength) {
136 		free(xfer->pLength);
138 	if (xfer->ppBuffer) {
139 		free(xfer->ppBuffer);
142 	xfer->priv_sc0 = NULL;
143 	xfer->priv_sc1 = NULL;
144 	xfer->is_opened = 0;
145 	xfer->is_pending = 0;
146 	xfer->is_cancel = 0;
147 	xfer->is_draining = 0;
148 	xfer->is_restart = 0;
149 	xfer->status = 0;
150 	xfer->flags = 0;
151 	xfer->nFrames = 0;
152 	xfer->aFrames = 0;
153 	xfer->timeout = 0;
154 	xfer->maxFrames = 0;
155 	xfer->maxTotalLength = 0;
156 	xfer->maxPacketLen = 0;
161 libusb20_tr_open(struct libusb20_transfer *xfer, uint32_t MaxBufSize,
164 	return (libusb20_tr_open_stream(xfer, MaxBufSize, MaxFrameCount, ep_no, 0));
168 libusb20_tr_open_stream(struct libusb20_transfer *xfer, uint32_t MaxBufSize,
175 	if (xfer->is_opened)
192 	xfer->maxFrames = MaxFrameCount;
194 	size = MaxFrameCount * sizeof(xfer->pLength[0]);
195 	xfer->pLength = malloc(size);
196 	if (xfer->pLength == NULL) {
199 	memset(xfer->pLength, 0, size);
201 	size = MaxFrameCount * sizeof(xfer->ppBuffer[0]);
202 	xfer->ppBuffer = malloc(size);
203 	if (xfer->ppBuffer == NULL) {
204 		free(xfer->pLength);
207 	memset(xfer->ppBuffer, 0, size);
210 		error = xfer->pdev->methods->tr_open(xfer, MaxBufSize,
213 		error = xfer->pdev->methods->tr_open(xfer, MaxBufSize,
218 		free(xfer->ppBuffer);
219 		free(xfer->pLength);
221 		xfer->is_opened = 1;
236 libusb20_tr_get_actual_frames(struct libusb20_transfer *xfer)
238 	return (xfer->aFrames);
242 libusb20_tr_get_time_complete(struct libusb20_transfer *xfer)
244 	return (xfer->timeComplete);
248 libusb20_tr_get_actual_length(struct libusb20_transfer *xfer)
253 	for (x = 0; x != xfer->aFrames; x++) {
254 		actlen += xfer->pLength[x];
260 libusb20_tr_get_max_frames(struct libusb20_transfer *xfer)
262 	return (xfer->maxFrames);
266 libusb20_tr_get_max_packet_length(struct libusb20_transfer *xfer)
273 	return (xfer->maxPacketLen);
277 libusb20_tr_get_max_total_length(struct libusb20_transfer *xfer)
279 	return (xfer->maxTotalLength);
283 libusb20_tr_get_status(struct libusb20_transfer *xfer)
285 	return (xfer->status);
289 libusb20_tr_pending(struct libusb20_transfer *xfer)
291 	return (xfer->is_pending);
295 libusb20_tr_get_priv_sc0(struct libusb20_transfer *xfer)
297 	return (xfer->priv_sc0);
301 libusb20_tr_get_priv_sc1(struct libusb20_transfer *xfer)
303 	return (xfer->priv_sc1);
307 libusb20_tr_stop(struct libusb20_transfer *xfer)
309 	if (!xfer->is_opened) {
313 	if (!xfer->is_pending) {
317 	if (xfer->is_cancel) {
321 	xfer->is_cancel = 1;		/* we are cancelling */
323 	xfer->pdev->methods->tr_cancel_async(xfer);
328 libusb20_tr_drain(struct libusb20_transfer *xfer)
330 	if (!xfer->is_opened) {
335 	libusb20_tr_stop(xfer);
337 	if (xfer->is_pending) {
338 		xfer->is_draining = 1;
344 libusb20_tr_clear_stall_sync(struct libusb20_transfer *xfer)
346 	xfer->pdev->methods->tr_clear_stall_sync(xfer);
351 libusb20_tr_set_buffer(struct libusb20_transfer *xfer, void *buffer, uint16_t frIndex)
353 	xfer->ppBuffer[frIndex] = libusb20_pass_ptr(buffer);
358 libusb20_tr_set_callback(struct libusb20_transfer *xfer, libusb20_tr_callback_t *cb)
360 	xfer->callback = cb;
365 libusb20_tr_set_flags(struct libusb20_transfer *xfer, uint8_t flags)
367 	xfer->flags = flags;
372 libusb20_tr_get_length(struct libusb20_transfer *xfer, uint16_t frIndex)
374 	return (xfer->pLength[frIndex]);
378 libusb20_tr_set_length(struct libusb20_transfer *xfer, uint32_t length, uint16_t frIndex)
380 	xfer->pLength[frIndex] = length;
385 libusb20_tr_set_priv_sc0(struct libusb20_transfer *xfer, void *sc0)
387 	xfer->priv_sc0 = sc0;
392 libusb20_tr_set_priv_sc1(struct libusb20_transfer *xfer, void *sc1)
394 	xfer->priv_sc1 = sc1;
399 libusb20_tr_set_timeout(struct libusb20_transfer *xfer, uint32_t timeout)
401 	xfer->timeout = timeout;
406 libusb20_tr_set_total_frames(struct libusb20_transfer *xfer, uint32_t nFrames)
408 	if (nFrames > xfer->maxFrames) {
410 		nFrames = xfer->maxFrames;
412 	xfer->nFrames = nFrames;
417 libusb20_tr_setup_bulk(struct libusb20_transfer *xfer, void *pBuf, uint32_t length, uint32_t timeout)
419 	xfer->ppBuffer[0] = libusb20_pass_ptr(pBuf);
420 	xfer->pLength[0] = length;
421 	xfer->timeout = timeout;
422 	xfer->nFrames = 1;
427 libusb20_tr_setup_control(struct libusb20_transfer *xfer, void *psetup, void *pBuf, uint32_t timeout)
431 	xfer->ppBuffer[0] = libusb20_pass_ptr(psetup);
432 	xfer->pLength[0] = 8;		/* fixed */
433 	xfer->timeout = timeout;
438 		xfer->nFrames = 2;
439 		xfer->ppBuffer[1] = libusb20_pass_ptr(pBuf);
440 		xfer->pLength[1] = len;
442 		xfer->nFrames = 1;
448 libusb20_tr_setup_intr(struct libusb20_transfer *xfer, void *pBuf, uint32_t length, uint32_t timeout)
450 	xfer->ppBuffer[0] = libusb20_pass_ptr(pBuf);
451 	xfer->pLength[0] = length;
452 	xfer->timeout = timeout;
453 	xfer->nFrames = 1;
458 libusb20_tr_setup_isoc(struct libusb20_transfer *xfer, void *pBuf, uint32_t length, uint16_t frIndex)
460 	if (frIndex >= xfer->maxFrames) {
464 	xfer->ppBuffer[frIndex] = libusb20_pass_ptr(pBuf);
465 	xfer->pLength[frIndex] = length;
470 libusb20_tr_bulk_intr_sync(struct libusb20_transfer *xfer,
474 	struct libusb20_device *pdev = xfer->pdev;
484 	if (libusb20_tr_pending(xfer))
490 		    libusb20_tr_get_max_total_length(xfer);
496 		libusb20_tr_setup_bulk(xfer, pbuf,
500 		libusb20_tr_start(xfer);
505 			if (libusb20_tr_pending(xfer) == 0)
511 		transfer_act = libusb20_tr_get_actual_length(xfer);
518 		retval = libusb20_tr_get_status(xfer);
536 libusb20_tr_submit(struct libusb20_transfer *xfer)
538 	if (!xfer->is_opened) {
542 	if (xfer->is_pending) {
546 	xfer->is_pending = 1;		/* we are pending */
547 	xfer->is_cancel = 0;		/* not cancelling */
548 	xfer->is_restart = 0;		/* not restarting */
550 	xfer->pdev->methods->tr_submit(xfer);
555 libusb20_tr_start(struct libusb20_transfer *xfer)
557 	if (!xfer->is_opened) {
561 	if (xfer->is_pending) {
562 		if (xfer->is_cancel) {
564 			xfer->is_restart = 1;
570 	libusb20_tr_callback_wrapper(xfer);
579 	struct libusb20_transfer *xfer;
587 		xfer = pdev->pTransfer + x;
589 		if (!xfer->is_opened) {
594 		libusb20_tr_drain(xfer);
596 		libusb20_tr_close(xfer);
657 	struct libusb20_transfer *xfer;
678 		xfer = pdev->pTransfer + x;
680 		xfer->pdev = pdev;
681 		xfer->trIndex = x;
682 		xfer->callback = &dummy_callback;