usbx
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Outline
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#define UX_SOURCE_CODE
#define UX_DCD_STM32_SOURCE_CODE
#include "ux_api.h"
#include "ux_dcd_stm32.h"
#include "ux_device_stack.h"
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_ux_dcd_stm32_endpoint_create(UX_DCD_STM32 *, UX_SLAVE_ENDPOINT *)
Files
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SourceVuSTM32 Libraries and Samplesusbxcommon/usbx_stm32_device_controllers/ux_dcd_stm32_endpoint_create.c
 
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/**************************************************************************/ /* */ /* Copyright (c) Microsoft Corporation. All rights reserved. */ /* */ /* This software is licensed under the Microsoft Software License */ /* Terms for Microsoft Azure RTOS. Full text of the license can be */ /* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */ /* and in the root directory of this software. */ /* */... /**************************************************************************/ ... /**************************************************************************/ /**************************************************************************/ /** */ /** USBX Component */ /** */ /** STM32 Controller Driver */ /** */... /**************************************************************************/ /**************************************************************************/ #define UX_SOURCE_CODE #define UX_DCD_STM32_SOURCE_CODE /* Include necessary system files. */ #include "ux_api.h" #include "ux_dcd_stm32.h" #include "ux_device_stack.h" ... /**************************************************************************/ /* */ /* FUNCTION RELEASE */ /* */ /* _ux_dcd_stm32_endpoint_create PORTABLE C */ /* 6.1 */ /* AUTHOR */ /* */ /* Chaoqiong Xiao, Microsoft Corporation */ /* */ /* DESCRIPTION */ /* */ /* This function will create a physical endpoint. */ /* */ /* INPUT */ /* */ /* dcd_stm32 Pointer to device controller */ /* endpoint Pointer to endpoint container */ /* */ /* OUTPUT */ /* */ /* Completion Status */ /* */ /* CALLS */ /* */ /* HAL_PCD_EP_Open Open endpoint */ /* */ /* CALLED BY */ /* */ /* STM32 Controller Driver */ /* */ /* RELEASE HISTORY */ /* */ /* DATE NAME DESCRIPTION */ /* */ /* 05-19-2020 Chaoqiong Xiao Initial Version 6.0 */ /* 09-30-2020 Chaoqiong Xiao Modified comment(s), used ST */ /* HAL library to drive the */ /* controller, */ /* resulting in version 6.1 */ /* */... /**************************************************************************/ UINT _ux_dcd_stm32_endpoint_create(UX_DCD_STM32 *dcd_stm32, UX_SLAVE_ENDPOINT *endpoint) { UX_DCD_STM32_ED *ed; ULONG stm32_endpoint_index; /* The endpoint index in the array of the STM32 must match the endpoint number. */ stm32_endpoint_index = endpoint -> ux_slave_endpoint_descriptor.bEndpointAddress & ~UX_ENDPOINT_DIRECTION; /* Get STM32 ED. */ ed = _stm32_ed_get(dcd_stm32, endpoint -> ux_slave_endpoint_descriptor.bEndpointAddress); if (ed == UX_NULL) return(UX_NO_ED_AVAILABLE); /* Check the endpoint status, if it is free, reserve it. If not reject this endpoint. */ if ((ed -> ux_dcd_stm32_ed_status & UX_DCD_STM32_ED_STATUS_USED) == 0) { /* We can use this endpoint. */ ed -> ux_dcd_stm32_ed_status |= UX_DCD_STM32_ED_STATUS_USED; /* Keep the physical endpoint address in the endpoint container. */ endpoint -> ux_slave_endpoint_ed = (VOID *) ed; /* Save the endpoint pointer. */ ed -> ux_dcd_stm32_ed_endpoint = endpoint; /* And its index. */ ed -> ux_dcd_stm32_ed_index = stm32_endpoint_index; /* And its direction. */ ed -> ux_dcd_stm32_ed_direction = endpoint -> ux_slave_endpoint_descriptor.bEndpointAddress & UX_ENDPOINT_DIRECTION; /* Check if it is non-control endpoint. */ if (stm32_endpoint_index != 0) { /* Open the endpoint. */ HAL_PCD_EP_Open(dcd_stm32 -> pcd_handle, endpoint -> ux_slave_endpoint_descriptor.bEndpointAddress, endpoint -> ux_slave_endpoint_descriptor.wMaxPacketSize, endpoint -> ux_slave_endpoint_descriptor.bmAttributes & UX_MASK_ENDPOINT_TYPE); }if (stm32_endpoint_index != 0) { ... } /* Return successful completion. */ return(UX_SUCCESS); }if ((ed -> ux_dcd_stm32_ed_status & UX_DCD_STM32_ED_STATUS_USED) == 0) { ... } /* Return an error. */ return(UX_NO_ED_AVAILABLE); }{ ... }
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