126 lines
6.8 KiB
C
126 lines
6.8 KiB
C
/**************************************************************************/
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/* */
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/* Copyright (c) Microsoft Corporation. All rights reserved. */
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/* */
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/* This software is licensed under the Microsoft Software License */
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/* Terms for Microsoft Azure RTOS. Full text of the license can be */
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/* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */
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/* and in the root directory of this software. */
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/* */
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/**************************************************************************/
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/**************************************************************************/
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/**************************************************************************/
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/** */
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/** USBX Component */
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/** */
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/** STM32 Controller Driver */
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/** */
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/**************************************************************************/
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/**************************************************************************/
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#define UX_SOURCE_CODE
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#define UX_DCD_STM32_SOURCE_CODE
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/* Include necessary system files. */
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#include "ux_api.h"
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#include "ux_dcd_stm32.h"
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#include "ux_device_stack.h"
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/**************************************************************************/
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/* */
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/* FUNCTION RELEASE */
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/* */
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/* _ux_dcd_stm32_endpoint_create PORTABLE C */
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/* 6.1 */
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/* AUTHOR */
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/* */
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/* Chaoqiong Xiao, Microsoft Corporation */
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/* */
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/* DESCRIPTION */
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/* */
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/* This function will create a physical endpoint. */
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/* */
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/* INPUT */
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/* */
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/* dcd_stm32 Pointer to device controller */
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/* endpoint Pointer to endpoint container */
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/* */
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/* OUTPUT */
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/* */
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/* Completion Status */
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/* */
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/* CALLS */
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/* */
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/* HAL_PCD_EP_Open Open endpoint */
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/* */
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/* CALLED BY */
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/* */
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/* STM32 Controller Driver */
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/* */
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/* RELEASE HISTORY */
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/* */
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/* DATE NAME DESCRIPTION */
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/* */
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/* 05-19-2020 Chaoqiong Xiao Initial Version 6.0 */
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/* 09-30-2020 Chaoqiong Xiao Modified comment(s), used ST */
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/* HAL library to drive the */
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/* controller, */
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/* resulting in version 6.1 */
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/* */
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/**************************************************************************/
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UINT _ux_dcd_stm32_endpoint_create(UX_DCD_STM32 *dcd_stm32, UX_SLAVE_ENDPOINT *endpoint)
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{
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UX_DCD_STM32_ED *ed;
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ULONG stm32_endpoint_index;
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/* The endpoint index in the array of the STM32 must match the endpoint number. */
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stm32_endpoint_index = endpoint -> ux_slave_endpoint_descriptor.bEndpointAddress & ~UX_ENDPOINT_DIRECTION;
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/* Fetch the address of the physical endpoint. */
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ed = &dcd_stm32 -> ux_dcd_stm32_ed[stm32_endpoint_index];
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/* Check the index range and endpoint status, if it is free, reserve it. If not reject this endpoint. */
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if ((stm32_endpoint_index < UX_DCD_STM32_MAX_ED) && ((ed -> ux_dcd_stm32_ed_status & UX_DCD_STM32_ED_STATUS_USED) == 0))
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{
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/* We can use this endpoint. */
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ed -> ux_dcd_stm32_ed_status |= UX_DCD_STM32_ED_STATUS_USED;
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/* Keep the physical endpoint address in the endpoint container. */
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endpoint -> ux_slave_endpoint_ed = (VOID *) ed;
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/* Save the endpoint pointer. */
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ed -> ux_dcd_stm32_ed_endpoint = endpoint;
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/* And its index. */
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ed -> ux_dcd_stm32_ed_index = stm32_endpoint_index;
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/* And its direction. */
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ed -> ux_dcd_stm32_ed_direction = endpoint -> ux_slave_endpoint_descriptor.bEndpointAddress & UX_ENDPOINT_DIRECTION;
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/* Check if it is non-control endpoint. */
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if (stm32_endpoint_index != 0)
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{
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/* Open the endpoint. */
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HAL_PCD_EP_Open(dcd_stm32 -> pcd_handle, endpoint -> ux_slave_endpoint_descriptor.bEndpointAddress,
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endpoint -> ux_slave_endpoint_descriptor.wMaxPacketSize,
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endpoint -> ux_slave_endpoint_descriptor.bmAttributes & UX_MASK_ENDPOINT_TYPE);
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}
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/* Return successful completion. */
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return(UX_SUCCESS);
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}
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/* Return an error. */
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return(UX_NO_ED_AVAILABLE);
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}
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