106 lines
5.7 KiB
C
106 lines
5.7 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_uninitialize 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 uninitializes the USB device controller of the STM32 */
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/* microcontroller from ST. */
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/* */
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/* Note: only software structures are uninitialized. STM32 HAL APIs */
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/* must be used to uninitialize controller hardware BEFORE the */
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/* function is invoked. */
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/* */
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/* INPUT */
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/* */
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/* dcd Address of DCD, not used */
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/* parameter Parameter, STM32 HAL PCD */
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/* pointer is expected */
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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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/* */
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/* CALLED BY */
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/* */
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/* USBX Device Stack */
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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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/* 09-30-2020 Chaoqiong Xiao Initial Version 6.1 */
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/* */
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/**************************************************************************/
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UINT _ux_dcd_stm32_uninitialize(ULONG dcd_io, ULONG parameter)
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{
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UX_SLAVE_DCD *dcd;
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UX_DCD_STM32 *dcd_stm32;
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UX_PARAMETER_NOT_USED(dcd_io);
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/* Get the pointer to the DCD. */
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dcd = &_ux_system_slave -> ux_system_slave_dcd;
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/* Set the state of the controller to HALTED now. */
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dcd -> ux_slave_dcd_status = UX_DCD_STATUS_HALTED;
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/* Get controller driver. */
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dcd_stm32 = (UX_DCD_STM32 *)dcd -> ux_slave_dcd_controller_hardware;
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/* Check parameter. */
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if ((ULONG)dcd_stm32 -> pcd_handle == parameter)
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{
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_ux_utility_memory_free(dcd_stm32);
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dcd -> ux_slave_dcd_controller_hardware = UX_NULL;
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return(UX_SUCCESS);
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}
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/* Parameter not correct. */
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return(UX_ERROR);
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}
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