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_initialize(ULONG, ULONG)
Files
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SourceVuSTM32 Libraries and Samplesusbxcommon/usbx_stm32_device_controllers/ux_dcd_stm32_initialize.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_initialize PORTABLE C */ /* 6.1 */ /* AUTHOR */ /* */ /* Chaoqiong Xiao, Microsoft Corporation */ /* */ /* DESCRIPTION */ /* */ /* This function initializes the USB device controller of the STM32 */ /* microcontroller from ST. */ /* */ /* Note: only software structures that are necessary for STM32 HAL to */ /* work is initialized, STM32 HAL APIs should be used to initialize */ /* controller hardware AFTER the function is invoked. */ /* */ /* INPUT */ /* */ /* dcd_io Address of DCD, not used */ /* parameter Parameter, STM32 HAL PCD */ /* pointer is expected */ /* */ /* OUTPUT */ /* */ /* Completion Status */ /* */ /* CALLS */ /* */ /* HAL_PCD_Init Initialize LL driver */ /* _ux_utility_memory_allocate Allocate memory */ /* */ /* CALLED BY */ /* */ /* USBX Device Stack */ /* */ /* 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_initialize(ULONG dcd_io, ULONG parameter) { UX_SLAVE_DCD *dcd; UX_DCD_STM32 *dcd_stm32; UX_PARAMETER_NOT_USED(dcd_io); /* Get the pointer to the DCD. */ dcd = &_ux_system_slave -> ux_system_slave_dcd; /* The controller initialized here is of STM32 type. */ dcd -> ux_slave_dcd_controller_type = UX_DCD_STM32_SLAVE_CONTROLLER; /* Allocate memory for this STM32 DCD instance. */ dcd_stm32 = _ux_utility_memory_allocate(UX_NO_ALIGN, UX_REGULAR_MEMORY, sizeof(UX_DCD_STM32)); /* Check if memory was properly allocated. */ if(dcd_stm32 == UX_NULL) return(UX_MEMORY_INSUFFICIENT); /* Set the pointer to the STM32 DCD. */ dcd -> ux_slave_dcd_controller_hardware = (VOID *) dcd_stm32; /* Set the generic DCD owner for the STM32 DCD. */ dcd_stm32 -> ux_dcd_stm32_dcd_owner = dcd; /* Initialize the function collector for this DCD. */ dcd -> ux_slave_dcd_function = _ux_dcd_stm32_function; dcd_stm32 -> pcd_handle = (PCD_HandleTypeDef *)parameter; /* Set the state of the controller to OPERATIONAL now. */ dcd -> ux_slave_dcd_status = UX_DCD_STATUS_OPERATIONAL; /* Return successful completion. */ return(UX_SUCCESS); }{ ... }
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