arduino_midi_player/Midi/music-box-stm32f1-master/user/Usb/usb_endp.c
2025-03-24 14:30:56 +08:00

116 lines
4.6 KiB
C

/**
******************************************************************************
* @file usb_endp.c
* @author MCD Application Team
* @version V4.1.0
* @date 26-May-2017
* @brief Endpoint routines
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. 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.
* 3. Neither the name of STMicroelectronics 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 HOLDER 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.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "usb_lib.h"
#include "usb_desc.h"
#include "usb_mem.h"
#include "hal.h"
#include "usb_istr.h"
#include "usb_pwr.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Interval between sending IN packets in frame number (1 frame = 1ms) */
#define VCOMPORT_IN_FRAME_INTERVAL 5
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
extern __IO uint32_t packet_sent;
extern __IO uint32_t packet_receive;
extern __IO uint8_t Receive_Buffer[64];
uint32_t Receive_length;
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/*******************************************************************************
* Function Name : EP1_IN_Callback
* Description :
* Input : None.
* Output : None.
* Return : None.
*******************************************************************************/
void EP1_IN_Callback (void)
{
packet_sent = 1;
}
/*******************************************************************************
* Function Name : EP3_OUT_Callback
* Description :
* Input : None.
* Output : None.
* Return : None.
*******************************************************************************/
void EP3_OUT_Callback(void)
{
packet_receive = 1;
Receive_length = GetEPRxCount(ENDP3);
PMAToUserBufferCopy((unsigned char*)Receive_Buffer, ENDP3_RXADDR, Receive_length);
}
/*******************************************************************************
* Function Name : EP5_IN_Callback
* Description :
* Input : None.
* Output : None.
* Return : None.
*******************************************************************************/
void EP5_IN_Callback (void)
{
}
/*******************************************************************************
* Function Name : EP4_OUT_Callback
* Description :
* Input : None.
* Output : None.
* Return : None.
*******************************************************************************/
void EP4_OUT_Callback(void)
{
packet_receive = 1;
Receive_length = GetEPRxCount(ENDP4);
PMAToUserBufferCopy((unsigned char*)Receive_Buffer, ENDP4_RXADDR, Receive_length);
}
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/