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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"
#if defined(UX_DEVICE_STANDALONE)
extern VOID _ux_dcd_stm32_setup_isr_pending(UX_DCD_STM32 *);
#endif
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _ux_dcd_stm32_function PORTABLE C */
/* 6.1.10 */
/* AUTHOR */
/* */
/* Chaoqiong Xiao, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function dispatches the DCD function internally to the STM32 */
/* controller. */
/* */
/* INPUT */
/* */
/* dcd Pointer to device controller */
/* function Function requested */
/* parameter Pointer to function parameters*/
/* */
/* OUTPUT */
/* */
/* Completion Status */
/* */
/* CALLS */
/* */
/* _ux_dcd_stm32_endpoint_create Create endpoint */
/* _ux_dcd_stm32_endpoint_destroy Destroy endpoint */
/* _ux_dcd_stm32_endpoint_reset Reset endpoint */
/* _ux_dcd_stm32_endpoint_stall Stall endpoint */
/* _ux_dcd_stm32_endpoint_status Get endpoint status */
/* _ux_dcd_stm32_frame_number_get Get frame number */
/* _ux_dcd_stm32_transfer_request Request data transfer */
/* */
/* 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 */
/* 01-31-2022 Chaoqiong Xiao Modified comment(s), */
/* added standalone support, */
/* resulting in version 6.1.10 */
/* */
/**************************************************************************/
UINT _ux_dcd_stm32_function(UX_SLAVE_DCD *dcd, UINT function, VOID *parameter)
{
UINT status;
UX_DCD_STM32 *dcd_stm32;
/* Check the status of the controller. */
if (dcd -> ux_slave_dcd_status == UX_UNUSED)
{
/* Error trap. */
_ux_system_error_handler(UX_SYSTEM_LEVEL_THREAD, UX_SYSTEM_CONTEXT_DCD, UX_CONTROLLER_UNKNOWN);
/* If trace is enabled, insert this event into the trace buffer. */
UX_TRACE_IN_LINE_INSERT(UX_TRACE_ERROR, UX_CONTROLLER_UNKNOWN, 0, 0, 0, UX_TRACE_ERRORS, 0, 0)
return(UX_CONTROLLER_UNKNOWN);
}
/* Get the pointer to the STM32 DCD. */
dcd_stm32 = (UX_DCD_STM32 *) dcd -> ux_slave_dcd_controller_hardware;
/* Look at the function and route it. */
switch(function)
{
case UX_DCD_GET_FRAME_NUMBER:
status = _ux_dcd_stm32_frame_number_get(dcd_stm32, (ULONG *) parameter);
break;
case UX_DCD_TRANSFER_REQUEST:
#if defined(UX_DEVICE_STANDALONE)
status = _ux_dcd_stm32_transfer_run(dcd_stm32, (UX_SLAVE_TRANSFER *) parameter);
#else
status = _ux_dcd_stm32_transfer_request(dcd_stm32, (UX_SLAVE_TRANSFER *) parameter);
#endif /* defined(UX_DEVICE_STANDALONE) */
break;
case UX_DCD_TRANSFER_ABORT:
status = _ux_dcd_stm32_transfer_abort(dcd_stm32, parameter);
break;
case UX_DCD_CREATE_ENDPOINT:
status = _ux_dcd_stm32_endpoint_create(dcd_stm32, parameter);
break;
case UX_DCD_DESTROY_ENDPOINT:
status = _ux_dcd_stm32_endpoint_destroy(dcd_stm32, parameter);
break;
case UX_DCD_RESET_ENDPOINT:
status = _ux_dcd_stm32_endpoint_reset(dcd_stm32, parameter);
break;
case UX_DCD_STALL_ENDPOINT:
status = _ux_dcd_stm32_endpoint_stall(dcd_stm32, parameter);
break;
case UX_DCD_SET_DEVICE_ADDRESS:
status = HAL_PCD_SetAddress(dcd_stm32 -> pcd_handle, (uint8_t)(ULONG) parameter);
break;
case UX_DCD_CHANGE_STATE:
if ((ULONG) parameter == UX_DEVICE_FORCE_DISCONNECT)
{
/* Disconnect the USB device */
status = HAL_PCD_Stop(dcd_stm32 -> pcd_handle);
}
else
{
status = UX_SUCCESS;
}
break;
case UX_DCD_ENDPOINT_STATUS:
status = _ux_dcd_stm32_endpoint_status(dcd_stm32, (ULONG) parameter);
break;
#if defined(UX_DEVICE_STANDALONE)
case UX_DCD_ISR_PENDING:
_ux_dcd_stm32_setup_isr_pending(dcd_stm32);
status = UX_SUCCESS;
break;
#endif /* defined(UX_DEVICE_STANDALONE) */
default:
/* Error trap. */
_ux_system_error_handler(UX_SYSTEM_LEVEL_THREAD, UX_SYSTEM_CONTEXT_DCD, UX_FUNCTION_NOT_SUPPORTED);
/* If trace is enabled, insert this event into the trace buffer. */
UX_TRACE_IN_LINE_INSERT(UX_TRACE_ERROR, UX_FUNCTION_NOT_SUPPORTED, 0, 0, 0, UX_TRACE_ERRORS, 0, 0)
status = UX_FUNCTION_NOT_SUPPORTED;
break;
}
/* Return completion status. */
return(status);
}
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