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uvos
2024-06-11 16:08:53 +02:00
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libfandevice/usbshm.h Normal file
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/* * Copyright (c) 2023 Carl Klemm <carl@uvos.xyz>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation and/or
* other materials provided with the distribution.
* * Neither the name of %ORGANIZATION% nor the names of its contributors may be
* used to endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <libusb-1.0/libusb.h>
#include <pthread.h>
#include <stdatomic.h>
#include <stdint.h>
#include <time.h>
#include <stdbool.h>
struct usbshm_priv;
enum {
USBSHM_ERROR_AGAIN = -1,
USBSHM_ERROR_PARAM = -2,
USBSHM_ERROR_ERR = -3,
USBSHM_ERROR_NOT_CONNECTED = -4,
};
struct usbshm {
struct usbshm_priv* priv;
int vendorID;
int productID;
unsigned char* serial;
void* user_data;
void (*dataCallback)(uint8_t request, unsigned char* data, size_t length, void* user_data);
};
void usbshm_distroy(struct usbshm* instance);
int usbshm_init(struct usbshm* instance, void (*dataCallback)(uint8_t request, unsigned char* data, size_t length, void* user_data), void* user_data);
bool usbshm_ready(struct usbshm* instance);
int usbshm_open(struct usbshm* instance, int vendorID, int productID, const unsigned char* serial);
bool usbshm_isOpen(struct usbshm* instance);
void usbshm_reset(struct usbshm* instance);
void usbshm_reopen(struct usbshm* instance);
int usbshm_writeControlTransfer(struct usbshm* instance, const uint8_t request,
char* buffer, const uint8_t length,
const uint16_t wValue, const uint16_t wIndex);
int usbshm_readControlTransfer(struct usbshm* instance, const uint8_t request, const uint16_t wValue, const uint16_t wIndex, const uint16_t length);
int usbshm_readControlTransferSync(struct usbshm* instance, const uint8_t request, const uint16_t wValue, const uint16_t wIndex, uint8_t* buffer, const uint16_t length);