123 lines
6.7 KiB
C
123 lines
6.7 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_initialize 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 initializes 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 that are necessary for STM32 HAL to */
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/* work is initialized, STM32 HAL APIs should be used to initialize */
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/* controller hardware AFTER the 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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/* HAL_PCD_Init Initialize LL driver */
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/* _ux_utility_memory_allocate Allocate memory */
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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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/* 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_initialize(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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/* The controller initialized here is of STM32 type. */
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dcd -> ux_slave_dcd_controller_type = UX_DCD_STM32_SLAVE_CONTROLLER;
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/* Allocate memory for this STM32 DCD instance. */
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dcd_stm32 = _ux_utility_memory_allocate(UX_NO_ALIGN, UX_REGULAR_MEMORY, sizeof(UX_DCD_STM32));
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/* Check if memory was properly allocated. */
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if(dcd_stm32 == UX_NULL)
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return(UX_MEMORY_INSUFFICIENT);
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/* Set the pointer to the STM32 DCD. */
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dcd -> ux_slave_dcd_controller_hardware = (VOID *) dcd_stm32;
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/* Set the generic DCD owner for the STM32 DCD. */
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dcd_stm32 -> ux_dcd_stm32_dcd_owner = dcd;
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/* Initialize the function collector for this DCD. */
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dcd -> ux_slave_dcd_function = _ux_dcd_stm32_function;
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dcd_stm32 -> pcd_handle = (PCD_HandleTypeDef *)parameter;
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/* Set the state of the controller to OPERATIONAL now. */
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dcd -> ux_slave_dcd_status = UX_DCD_STATUS_OPERATIONAL;
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/* Return successful completion. */
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return(UX_SUCCESS);
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}
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