diff options
Diffstat (limited to 'thirdparty/STM32_USB-FS-Device_Lib_V4.0.0/Projects/Audio_Speaker/src/usb_endp.c')
-rw-r--r-- | thirdparty/STM32_USB-FS-Device_Lib_V4.0.0/Projects/Audio_Speaker/src/usb_endp.c | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/thirdparty/STM32_USB-FS-Device_Lib_V4.0.0/Projects/Audio_Speaker/src/usb_endp.c b/thirdparty/STM32_USB-FS-Device_Lib_V4.0.0/Projects/Audio_Speaker/src/usb_endp.c new file mode 100644 index 0000000..ddf22ad --- /dev/null +++ b/thirdparty/STM32_USB-FS-Device_Lib_V4.0.0/Projects/Audio_Speaker/src/usb_endp.c @@ -0,0 +1,71 @@ +/** + ****************************************************************************** + * @file usb_endp.c + * @author MCD Application Team + * @version V4.0.0 + * @date 21-January-2013 + * @brief Endpoint routines + ****************************************************************************** + * @attention + * + * <h2><center>© COPYRIGHT 2013 STMicroelectronics</center></h2> + * + * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License"); + * You may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.st.com/software_license_agreement_liberty_v2 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "usb_lib.h" +#include "usb_istr.h" + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +uint8_t Stream_Buff[24]; +uint16_t In_Data_Offset; + +/* Extern variables ----------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ +/* Extern function prototypes ------------------------------------------------*/ +/* Private functions ---------------------------------------------------------*/ +/******************************************************************************* +* Function Name : EP1_OUT_Callback +* Description : Endpoint 1 out callback routine. +* Input : None. +* Output : None. +* Return : None. +*******************************************************************************/ +void EP1_OUT_Callback(void) +{ + uint16_t Data_Len; /* data length*/ + + if (GetENDPOINT(ENDP1) & EP_DTOG_TX) + { + /*read from ENDP1_BUF0Addr buffer*/ + Data_Len = GetEPDblBuf0Count(ENDP1); + PMAToUserBufferCopy(Stream_Buff, ENDP1_BUF0Addr, Data_Len); + } + else + { + /*read from ENDP1_BUF1Addr buffer*/ + Data_Len = GetEPDblBuf1Count(ENDP1); + PMAToUserBufferCopy(Stream_Buff, ENDP1_BUF1Addr, Data_Len); + } + FreeUserBuffer(ENDP1, EP_DBUF_OUT); + In_Data_Offset += Data_Len; +} + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ + |