X-Git-Url: http://47.100.26.94:8080/?a=blobdiff_plain;f=app%2Fsrc%2Fmain%2Fjni%2Flibusb%2Flibusb%2Fsync.c;fp=app%2Fsrc%2Fmain%2Fjni%2Flibusb%2Flibusb%2Fsync.c;h=0000000000000000000000000000000000000000;hb=dd394951609bc6647111ca8246429543c378ba7b;hp=effd6e705e3584d0c4c3222d0bd32fccff724ccb;hpb=d0d496554f96cebf84db3e9b3cf507577272ef8c;p=rtmpclient.git diff --git a/app/src/main/jni/libusb/libusb/sync.c b/app/src/main/jni/libusb/libusb/sync.c deleted file mode 100644 index effd6e7..0000000 --- a/app/src/main/jni/libusb/libusb/sync.c +++ /dev/null @@ -1,306 +0,0 @@ -/* - * Synchronous I/O functions for libusb - * Copyright © 2007-2008 Daniel Drake - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include "config.h" -#include -#include -#include -#include - -#include "libusbi.h" - -/** - * @defgroup syncio Synchronous device I/O - * - * This page documents libusb's synchronous (blocking) API for USB device I/O. - * This interface is easy to use but has some limitations. More advanced users - * may wish to consider using the \ref asyncio "asynchronous I/O API" instead. - */ - -static void LIBUSB_CALL sync_transfer_cb(struct libusb_transfer *transfer) -{ - int *completed = transfer->user_data; - *completed = 1; - usbi_dbg("actual_length=%d", transfer->actual_length); - /* caller interprets result and frees transfer */ -} - -static void sync_transfer_wait_for_completion(struct libusb_transfer *transfer) -{ - int r, *completed = transfer->user_data; - struct libusb_context *ctx = HANDLE_CTX(transfer->dev_handle); - - while (!*completed) { - r = libusb_handle_events_completed(ctx, completed); - if (UNLIKELY(r < 0)) { - if (r == LIBUSB_ERROR_INTERRUPTED) - continue; - usbi_err(ctx, "libusb_handle_events failed: %s, cancelling transfer and retrying", - libusb_error_name(r)); - libusb_cancel_transfer(transfer); - continue; - } - } -} - -/** \ingroup syncio - * Perform a USB control transfer. - * - * The direction of the transfer is inferred from the bmRequestType field of - * the setup packet. - * - * The wValue, wIndex and wLength fields values should be given in host-endian - * byte order. - * - * \param dev_handle a handle for the device to communicate with - * \param bmRequestType the request type field for the setup packet - * \param bRequest the request field for the setup packet - * \param wValue the value field for the setup packet - * \param wIndex the index field for the setup packet - * \param data a suitably-sized data buffer for either input or output - * (depending on direction bits within bmRequestType) - * \param wLength the length field for the setup packet. The data buffer should - * be at least this size. - * \param timeout timeout (in millseconds) that this function should wait - * before giving up due to no response being received. For an unlimited - * timeout, use value 0. - * \returns on success, the number of bytes actually transferred - * \returns LIBUSB_ERROR_TIMEOUT if the transfer timed out - * \returns LIBUSB_ERROR_PIPE if the control request was not supported by the - * device - * \returns LIBUSB_ERROR_NO_DEVICE if the device has been disconnected - * \returns another LIBUSB_ERROR code on other failures - */ -int API_EXPORTED libusb_control_transfer(libusb_device_handle *dev_handle, - uint8_t bmRequestType, uint8_t bRequest, uint16_t wValue, uint16_t wIndex, - unsigned char *data, uint16_t wLength, unsigned int timeout) -{ - struct libusb_transfer *transfer = libusb_alloc_transfer(0); - unsigned char *buffer; - int completed = 0; - int r; - - if (UNLIKELY(!transfer)) - return LIBUSB_ERROR_NO_MEM; - - buffer = (unsigned char*) malloc(LIBUSB_CONTROL_SETUP_SIZE + wLength); - if (UNLIKELY(!buffer)) { - libusb_free_transfer(transfer); - return LIBUSB_ERROR_NO_MEM; - } - - libusb_fill_control_setup(buffer, bmRequestType, bRequest, wValue, wIndex, wLength); - if ((bmRequestType & LIBUSB_ENDPOINT_DIR_MASK) == LIBUSB_ENDPOINT_OUT) - memcpy(buffer + LIBUSB_CONTROL_SETUP_SIZE, data, wLength); - - libusb_fill_control_transfer(transfer, dev_handle, buffer, - sync_transfer_cb, &completed, timeout); - transfer->flags = LIBUSB_TRANSFER_FREE_BUFFER; - r = libusb_submit_transfer(transfer); - if (UNLIKELY(r < 0)) { - libusb_free_transfer(transfer); - return r; - } - - sync_transfer_wait_for_completion(transfer); - - if ((bmRequestType & LIBUSB_ENDPOINT_DIR_MASK) == LIBUSB_ENDPOINT_IN) - memcpy(data, libusb_control_transfer_get_data(transfer), - transfer->actual_length); - - switch (transfer->status) { - case LIBUSB_TRANSFER_COMPLETED: - r = transfer->actual_length; - break; - case LIBUSB_TRANSFER_TIMED_OUT: - r = LIBUSB_ERROR_TIMEOUT; - break; - case LIBUSB_TRANSFER_STALL: - r = LIBUSB_ERROR_PIPE; - break; - case LIBUSB_TRANSFER_NO_DEVICE: - r = LIBUSB_ERROR_NO_DEVICE; - break; - case LIBUSB_TRANSFER_OVERFLOW: - r = LIBUSB_ERROR_OVERFLOW; - break; - case LIBUSB_TRANSFER_ERROR: - case LIBUSB_TRANSFER_CANCELLED: - r = LIBUSB_ERROR_IO; - break; - default: - usbi_warn(HANDLE_CTX(dev_handle), - "unrecognised status code %d", transfer->status); - r = LIBUSB_ERROR_OTHER; - } - - libusb_free_transfer(transfer); - return r; -} - -static int do_sync_bulk_transfer(struct libusb_device_handle *dev_handle, - unsigned char endpoint, unsigned char *buffer, int length, - int *transferred, unsigned int timeout, unsigned char type) -{ - struct libusb_transfer *transfer = libusb_alloc_transfer(0); - int completed = 0; - int r; - - if (UNLIKELY(!transfer)) - return LIBUSB_ERROR_NO_MEM; - - libusb_fill_bulk_transfer(transfer, dev_handle, endpoint, buffer, length, - sync_transfer_cb, &completed, timeout); - transfer->type = type; - - r = libusb_submit_transfer(transfer); - if (UNLIKELY(r < 0)) { - libusb_free_transfer(transfer); - return r; - } - - sync_transfer_wait_for_completion(transfer); - - *transferred = transfer->actual_length; - switch (transfer->status) { - case LIBUSB_TRANSFER_COMPLETED: - r = 0; - break; - case LIBUSB_TRANSFER_TIMED_OUT: - r = LIBUSB_ERROR_TIMEOUT; - break; - case LIBUSB_TRANSFER_STALL: - r = LIBUSB_ERROR_PIPE; - break; - case LIBUSB_TRANSFER_OVERFLOW: - r = LIBUSB_ERROR_OVERFLOW; - break; - case LIBUSB_TRANSFER_NO_DEVICE: - r = LIBUSB_ERROR_NO_DEVICE; - break; - case LIBUSB_TRANSFER_ERROR: - case LIBUSB_TRANSFER_CANCELLED: - r = LIBUSB_ERROR_IO; - break; - default: - usbi_warn(HANDLE_CTX(dev_handle), - "unrecognised status code %d", transfer->status); - r = LIBUSB_ERROR_OTHER; - } - - libusb_free_transfer(transfer); - return r; -} - -/** \ingroup syncio - * Perform a USB bulk transfer. The direction of the transfer is inferred from - * the direction bits of the endpoint address. - * - * For bulk reads, the length field indicates the maximum length of - * data you are expecting to receive. If less data arrives than expected, - * this function will return that data, so be sure to check the - * transferred output parameter. - * - * You should also check the transferred parameter for bulk writes. - * Not all of the data may have been written. - * - * Also check transferred when dealing with a timeout error code. - * libusb may have to split your transfer into a number of chunks to satisfy - * underlying O/S requirements, meaning that the timeout may expire after - * the first few chunks have completed. libusb is careful not to lose any data - * that may have been transferred; do not assume that timeout conditions - * indicate a complete lack of I/O. - * - * \param dev_handle a handle for the device to communicate with - * \param endpoint the address of a valid endpoint to communicate with - * \param data a suitably-sized data buffer for either input or output - * (depending on endpoint) - * \param length for bulk writes, the number of bytes from data to be sent. for - * bulk reads, the maximum number of bytes to receive into the data buffer. - * \param transferred output location for the number of bytes actually - * transferred. - * \param timeout timeout (in millseconds) that this function should wait - * before giving up due to no response being received. For an unlimited - * timeout, use value 0. - * - * \returns 0 on success (and populates transferred) - * \returns LIBUSB_ERROR_TIMEOUT if the transfer timed out (and populates - * transferred) - * \returns LIBUSB_ERROR_PIPE if the endpoint halted - * \returns LIBUSB_ERROR_OVERFLOW if the device offered more data, see - * \ref packetoverflow - * \returns LIBUSB_ERROR_NO_DEVICE if the device has been disconnected - * \returns another LIBUSB_ERROR code on other failures - */ -int API_EXPORTED libusb_bulk_transfer(struct libusb_device_handle *dev_handle, - unsigned char endpoint, unsigned char *data, int length, int *transferred, - unsigned int timeout) -{ - return do_sync_bulk_transfer(dev_handle, endpoint, data, length, - transferred, timeout, LIBUSB_TRANSFER_TYPE_BULK); -} - -/** \ingroup syncio - * Perform a USB interrupt transfer. The direction of the transfer is inferred - * from the direction bits of the endpoint address. - * - * For interrupt reads, the length field indicates the maximum length - * of data you are expecting to receive. If less data arrives than expected, - * this function will return that data, so be sure to check the - * transferred output parameter. - * - * You should also check the transferred parameter for interrupt - * writes. Not all of the data may have been written. - * - * Also check transferred when dealing with a timeout error code. - * libusb may have to split your transfer into a number of chunks to satisfy - * underlying O/S requirements, meaning that the timeout may expire after - * the first few chunks have completed. libusb is careful not to lose any data - * that may have been transferred; do not assume that timeout conditions - * indicate a complete lack of I/O. - * - * The default endpoint bInterval value is used as the polling interval. - * - * \param dev_handle a handle for the device to communicate with - * \param endpoint the address of a valid endpoint to communicate with - * \param data a suitably-sized data buffer for either input or output - * (depending on endpoint) - * \param length for bulk writes, the number of bytes from data to be sent. for - * bulk reads, the maximum number of bytes to receive into the data buffer. - * \param transferred output location for the number of bytes actually - * transferred. - * \param timeout timeout (in millseconds) that this function should wait - * before giving up due to no response being received. For an unlimited - * timeout, use value 0. - * - * \returns 0 on success (and populates transferred) - * \returns LIBUSB_ERROR_TIMEOUT if the transfer timed out - * \returns LIBUSB_ERROR_PIPE if the endpoint halted - * \returns LIBUSB_ERROR_OVERFLOW if the device offered more data, see - * \ref packetoverflow - * \returns LIBUSB_ERROR_NO_DEVICE if the device has been disconnected - * \returns another LIBUSB_ERROR code on other error - */ -int API_EXPORTED libusb_interrupt_transfer( - struct libusb_device_handle *dev_handle, unsigned char endpoint, - unsigned char *data, int length, int *transferred, unsigned int timeout) -{ - return do_sync_bulk_transfer(dev_handle, endpoint, data, length, - transferred, timeout, LIBUSB_TRANSFER_TYPE_INTERRUPT); -}