WebSVN – DashDisplay – Blame – /branches/Dashboard_L152_v2/Drivers/STM32L1xx_HAL_Driver/Src/stm32l1xx_hal_pcd.c

Rev	Author	Line No.	Line
56	mjames	1	/**
		2	******************************************************************************
		3	* @file stm32l1xx_hal_pcd.c
		4	* @author MCD Application Team
		5	* @brief PCD HAL module driver.
		6	* This file provides firmware functions to manage the following
		7	* functionalities of the USB Peripheral Controller:
		8	* + Initialization and de-initialization functions
		9	* + IO operation functions
		10	* + Peripheral Control functions
		11	* + Peripheral State functions
		12	*
		13	@verbatim
		14	==============================================================================
		15	##### How to use this driver #####
		16	==============================================================================
		17	[..]
		18	The PCD HAL driver can be used as follows:
		19
		20	(#) Declare a PCD_HandleTypeDef handle structure, for example:
		21	PCD_HandleTypeDef hpcd;
		22
		23	(#) Fill parameters of Init structure in HCD handle
		24
		25	(#) Call HAL_PCD_Init() API to initialize the PCD peripheral (Core, Device core, ...)
		26
		27	(#) Initialize the PCD low level resources through the HAL_PCD_MspInit() API:
		28	(##) Enable the PCD/USB Low Level interface clock using
		29	(+++) __HAL_RCC_USB_CLK_ENABLE(); For USB Device only FS peripheral
		30
		31	(##) Initialize the related GPIO clocks
		32	(##) Configure PCD pin-out
		33	(##) Configure PCD NVIC interrupt
		34
		35	(#)Associate the Upper USB device stack to the HAL PCD Driver:
		36	(##) hpcd.pData = pdev;
		37
		38	(#)Enable PCD transmission and reception:
		39	(##) HAL_PCD_Start();
		40
		41	@endverbatim
		42	******************************************************************************
		43	* @attention
		44	*
		45	* <h2><center>© Copyright (c) 2016 STMicroelectronics.
		46	* All rights reserved.</center></h2>
		47	*
		48	* This software component is licensed by ST under BSD 3-Clause license,
		49	* the "License"; You may not use this file except in compliance with the
		50	* License. You may obtain a copy of the License at:
		51	* opensource.org/licenses/BSD-3-Clause
		52	*
		53	******************************************************************************
		54	*/
		55
		56	/* Includes ------------------------------------------------------------------*/
		57	#include "stm32l1xx_hal.h"
		58
		59	/** @addtogroup STM32L1xx_HAL_Driver
		60	* @{
		61	*/
		62
		63	/** @defgroup PCD PCD
		64	* @brief PCD HAL module driver
		65	* @{
		66	*/
		67
		68	#ifdef HAL_PCD_MODULE_ENABLED
		69
		70	#if defined (USB)
		71
		72	/* Private types -------------------------------------------------------------*/
		73	/* Private variables ---------------------------------------------------------*/
		74	/* Private constants ---------------------------------------------------------*/
		75	/* Private macros ------------------------------------------------------------*/
		76	/** @defgroup PCD_Private_Macros PCD Private Macros
		77	* @{
		78	*/
		79	#define PCD_MIN(a, b) (((a) < (b)) ? (a) : (b))
		80	#define PCD_MAX(a, b) (((a) > (b)) ? (a) : (b))
		81	/**
		82	* @}
		83	*/
		84
		85	/* Private functions prototypes ----------------------------------------------*/
		86	/** @defgroup PCD_Private_Functions PCD Private Functions
		87	* @{
		88	*/
		89
		90	static HAL_StatusTypeDef PCD_EP_ISR_Handler(PCD_HandleTypeDef *hpcd);
		91	static HAL_StatusTypeDef HAL_PCD_EP_DB_Transmit(PCD_HandleTypeDef hpcd, PCD_EPTypeDef ep, uint16_t wEPVal);
		92	static uint16_t HAL_PCD_EP_DB_Receive(PCD_HandleTypeDef hpcd, PCD_EPTypeDef ep, uint16_t wEPVal);
		93
		94	/**
		95	* @}
		96	*/
		97
		98	/* Exported functions --------------------------------------------------------*/
		99	/** @defgroup PCD_Exported_Functions PCD Exported Functions
		100	* @{
		101	*/
		102
		103	/** @defgroup PCD_Exported_Functions_Group1 Initialization and de-initialization functions
		104	* @brief Initialization and Configuration functions
		105	*
		106	@verbatim
		107	===============================================================================
		108	##### Initialization and de-initialization functions #####
		109	===============================================================================
		110	[..] This section provides functions allowing to:
		111
		112	@endverbatim
		113	* @{
		114	*/
		115
		116	/**
		117	* @brief Initializes the PCD according to the specified
		118	* parameters in the PCD_InitTypeDef and initialize the associated handle.
		119	* @param hpcd PCD handle
		120	* @retval HAL status
		121	*/
		122	HAL_StatusTypeDef HAL_PCD_Init(PCD_HandleTypeDef *hpcd)
		123	{
		124	uint8_t i;
		125
		126	/* Check the PCD handle allocation */
		127	if (hpcd == NULL)
		128	{
		129	return HAL_ERROR;
		130	}
		131
		132	/* Check the parameters */
		133	assert_param(IS_PCD_ALL_INSTANCE(hpcd->Instance));
		134
		135	if (hpcd->State == HAL_PCD_STATE_RESET)
		136	{
		137	/* Allocate lock resource and initialize it */
		138	hpcd->Lock = HAL_UNLOCKED;
		139
		140	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		141	hpcd->SOFCallback = HAL_PCD_SOFCallback;
		142	hpcd->SetupStageCallback = HAL_PCD_SetupStageCallback;
		143	hpcd->ResetCallback = HAL_PCD_ResetCallback;
		144	hpcd->SuspendCallback = HAL_PCD_SuspendCallback;
		145	hpcd->ResumeCallback = HAL_PCD_ResumeCallback;
		146	hpcd->ConnectCallback = HAL_PCD_ConnectCallback;
		147	hpcd->DisconnectCallback = HAL_PCD_DisconnectCallback;
		148	hpcd->DataOutStageCallback = HAL_PCD_DataOutStageCallback;
		149	hpcd->DataInStageCallback = HAL_PCD_DataInStageCallback;
		150	hpcd->ISOOUTIncompleteCallback = HAL_PCD_ISOOUTIncompleteCallback;
		151	hpcd->ISOINIncompleteCallback = HAL_PCD_ISOINIncompleteCallback;
		152
		153	if (hpcd->MspInitCallback == NULL)
		154	{
		155	hpcd->MspInitCallback = HAL_PCD_MspInit;
		156	}
		157
		158	/* Init the low level hardware */
		159	hpcd->MspInitCallback(hpcd);
		160	#else
		161	/* Init the low level hardware : GPIO, CLOCK, NVIC... */
		162	HAL_PCD_MspInit(hpcd);
		163	#endif /* (USE_HAL_PCD_REGISTER_CALLBACKS) */
		164	}
		165
		166	hpcd->State = HAL_PCD_STATE_BUSY;
		167
		168	/* Disable the Interrupts */
		169	__HAL_PCD_DISABLE(hpcd);
		170
		171	/* Init endpoints structures */
		172	for (i = 0U; i < hpcd->Init.dev_endpoints; i++)
		173	{
		174	/* Init ep structure */
		175	hpcd->IN_ep[i].is_in = 1U;
		176	hpcd->IN_ep[i].num = i;
		177	hpcd->IN_ep[i].tx_fifo_num = i;
		178	/* Control until ep is activated */
		179	hpcd->IN_ep[i].type = EP_TYPE_CTRL;
		180	hpcd->IN_ep[i].maxpacket = 0U;
		181	hpcd->IN_ep[i].xfer_buff = 0U;
		182	hpcd->IN_ep[i].xfer_len = 0U;
		183	}
		184
		185	for (i = 0U; i < hpcd->Init.dev_endpoints; i++)
		186	{
		187	hpcd->OUT_ep[i].is_in = 0U;
		188	hpcd->OUT_ep[i].num = i;
		189	/* Control until ep is activated */
		190	hpcd->OUT_ep[i].type = EP_TYPE_CTRL;
		191	hpcd->OUT_ep[i].maxpacket = 0U;
		192	hpcd->OUT_ep[i].xfer_buff = 0U;
		193	hpcd->OUT_ep[i].xfer_len = 0U;
		194	}
		195
		196	/* Init Device */
		197	(void)USB_DevInit(hpcd->Instance, hpcd->Init);
		198
		199	hpcd->USB_Address = 0U;
		200	hpcd->State = HAL_PCD_STATE_READY;
		201	return HAL_OK;
		202	}
		203
		204	/**
		205	* @brief DeInitializes the PCD peripheral.
		206	* @param hpcd PCD handle
		207	* @retval HAL status
		208	*/
		209	HAL_StatusTypeDef HAL_PCD_DeInit(PCD_HandleTypeDef *hpcd)
		210	{
		211	/* Check the PCD handle allocation */
		212	if (hpcd == NULL)
		213	{
		214	return HAL_ERROR;
		215	}
		216
		217	hpcd->State = HAL_PCD_STATE_BUSY;
		218
		219	/* Stop Device */
		220	if (USB_StopDevice(hpcd->Instance) != HAL_OK)
		221	{
		222	return HAL_ERROR;
		223	}
		224
		225	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		226	if (hpcd->MspDeInitCallback == NULL)
		227	{
		228	hpcd->MspDeInitCallback = HAL_PCD_MspDeInit; /* Legacy weak MspDeInit */
		229	}
		230
		231	/* DeInit the low level hardware */
		232	hpcd->MspDeInitCallback(hpcd);
		233	#else
		234	/* DeInit the low level hardware: CLOCK, NVIC.*/
		235	HAL_PCD_MspDeInit(hpcd);
		236	#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
		237
		238	hpcd->State = HAL_PCD_STATE_RESET;
		239
		240	return HAL_OK;
		241	}
		242
		243	/**
		244	* @brief Initializes the PCD MSP.
		245	* @param hpcd PCD handle
		246	* @retval None
		247	*/
		248	__weak void HAL_PCD_MspInit(PCD_HandleTypeDef *hpcd)
		249	{
		250	/* Prevent unused argument(s) compilation warning */
		251	UNUSED(hpcd);
		252
		253	/* NOTE : This function should not be modified, when the callback is needed,
		254	the HAL_PCD_MspInit could be implemented in the user file
		255	*/
		256	}
		257
		258	/**
		259	* @brief DeInitializes PCD MSP.
		260	* @param hpcd PCD handle
		261	* @retval None
		262	*/
		263	__weak void HAL_PCD_MspDeInit(PCD_HandleTypeDef *hpcd)
		264	{
		265	/* Prevent unused argument(s) compilation warning */
		266	UNUSED(hpcd);
		267
		268	/* NOTE : This function should not be modified, when the callback is needed,
		269	the HAL_PCD_MspDeInit could be implemented in the user file
		270	*/
		271	}
		272
		273	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		274	/**
		275	* @brief Register a User USB PCD Callback
		276	* To be used instead of the weak predefined callback
		277	* @param hpcd USB PCD handle
		278	* @param CallbackID ID of the callback to be registered
		279	* This parameter can be one of the following values:
		280	* @arg @ref HAL_PCD_SOF_CB_ID USB PCD SOF callback ID
		281	* @arg @ref HAL_PCD_SETUPSTAGE_CB_ID USB PCD Setup callback ID
		282	* @arg @ref HAL_PCD_RESET_CB_ID USB PCD Reset callback ID
		283	* @arg @ref HAL_PCD_SUSPEND_CB_ID USB PCD Suspend callback ID
		284	* @arg @ref HAL_PCD_RESUME_CB_ID USB PCD Resume callback ID
		285	* @arg @ref HAL_PCD_CONNECT_CB_ID USB PCD Connect callback ID
		286	* @arg @ref HAL_PCD_DISCONNECT_CB_ID OTG PCD Disconnect callback ID
		287	* @arg @ref HAL_PCD_MSPINIT_CB_ID MspDeInit callback ID
		288	* @arg @ref HAL_PCD_MSPDEINIT_CB_ID MspDeInit callback ID
		289	* @param pCallback pointer to the Callback function
		290	* @retval HAL status
		291	*/
61	mjames	292	HAL_StatusTypeDef HAL_PCD_RegisterCallback(PCD_HandleTypeDef *hpcd,
		293	HAL_PCD_CallbackIDTypeDef CallbackID,
		294	pPCD_CallbackTypeDef pCallback)
56	mjames	295	{
		296	HAL_StatusTypeDef status = HAL_OK;
		297
		298	if (pCallback == NULL)
		299	{
		300	/* Update the error code */
		301	hpcd->ErrorCode \|= HAL_PCD_ERROR_INVALID_CALLBACK;
		302	return HAL_ERROR;
		303	}
		304	/* Process locked */
		305	__HAL_LOCK(hpcd);
		306
		307	if (hpcd->State == HAL_PCD_STATE_READY)
		308	{
		309	switch (CallbackID)
		310	{
		311	case HAL_PCD_SOF_CB_ID :
		312	hpcd->SOFCallback = pCallback;
		313	break;
		314
		315	case HAL_PCD_SETUPSTAGE_CB_ID :
		316	hpcd->SetupStageCallback = pCallback;
		317	break;
		318
		319	case HAL_PCD_RESET_CB_ID :
		320	hpcd->ResetCallback = pCallback;
		321	break;
		322
		323	case HAL_PCD_SUSPEND_CB_ID :
		324	hpcd->SuspendCallback = pCallback;
		325	break;
		326
		327	case HAL_PCD_RESUME_CB_ID :
		328	hpcd->ResumeCallback = pCallback;
		329	break;
		330
		331	case HAL_PCD_CONNECT_CB_ID :
		332	hpcd->ConnectCallback = pCallback;
		333	break;
		334
		335	case HAL_PCD_DISCONNECT_CB_ID :
		336	hpcd->DisconnectCallback = pCallback;
		337	break;
		338
		339	case HAL_PCD_MSPINIT_CB_ID :
		340	hpcd->MspInitCallback = pCallback;
		341	break;
		342
		343	case HAL_PCD_MSPDEINIT_CB_ID :
		344	hpcd->MspDeInitCallback = pCallback;
		345	break;
		346
		347	default :
		348	/* Update the error code */
		349	hpcd->ErrorCode \|= HAL_PCD_ERROR_INVALID_CALLBACK;
		350	/* Return error status */
		351	status = HAL_ERROR;
		352	break;
		353	}
		354	}
		355	else if (hpcd->State == HAL_PCD_STATE_RESET)
		356	{
		357	switch (CallbackID)
		358	{
		359	case HAL_PCD_MSPINIT_CB_ID :
		360	hpcd->MspInitCallback = pCallback;
		361	break;
		362
		363	case HAL_PCD_MSPDEINIT_CB_ID :
		364	hpcd->MspDeInitCallback = pCallback;
		365	break;
		366
		367	default :
		368	/* Update the error code */
		369	hpcd->ErrorCode \|= HAL_PCD_ERROR_INVALID_CALLBACK;
		370	/* Return error status */
		371	status = HAL_ERROR;
		372	break;
		373	}
		374	}
		375	else
		376	{
		377	/* Update the error code */
		378	hpcd->ErrorCode \|= HAL_PCD_ERROR_INVALID_CALLBACK;
		379	/* Return error status */
		380	status = HAL_ERROR;
		381	}
		382
		383	/* Release Lock */
		384	__HAL_UNLOCK(hpcd);
		385	return status;
		386	}
		387
		388	/**
		389	* @brief Unregister an USB PCD Callback
		390	* USB PCD callabck is redirected to the weak predefined callback
		391	* @param hpcd USB PCD handle
		392	* @param CallbackID ID of the callback to be unregistered
		393	* This parameter can be one of the following values:
		394	* @arg @ref HAL_PCD_SOF_CB_ID USB PCD SOF callback ID
		395	* @arg @ref HAL_PCD_SETUPSTAGE_CB_ID USB PCD Setup callback ID
		396	* @arg @ref HAL_PCD_RESET_CB_ID USB PCD Reset callback ID
		397	* @arg @ref HAL_PCD_SUSPEND_CB_ID USB PCD Suspend callback ID
		398	* @arg @ref HAL_PCD_RESUME_CB_ID USB PCD Resume callback ID
		399	* @arg @ref HAL_PCD_CONNECT_CB_ID USB PCD Connect callback ID
		400	* @arg @ref HAL_PCD_DISCONNECT_CB_ID OTG PCD Disconnect callback ID
		401	* @arg @ref HAL_PCD_MSPINIT_CB_ID MspDeInit callback ID
		402	* @arg @ref HAL_PCD_MSPDEINIT_CB_ID MspDeInit callback ID
		403	* @retval HAL status
		404	*/
		405	HAL_StatusTypeDef HAL_PCD_UnRegisterCallback(PCD_HandleTypeDef *hpcd, HAL_PCD_CallbackIDTypeDef CallbackID)
		406	{
		407	HAL_StatusTypeDef status = HAL_OK;
		408
		409	/* Process locked */
		410	__HAL_LOCK(hpcd);
		411
		412	/* Setup Legacy weak Callbacks */
		413	if (hpcd->State == HAL_PCD_STATE_READY)
		414	{
		415	switch (CallbackID)
		416	{
		417	case HAL_PCD_SOF_CB_ID :
		418	hpcd->SOFCallback = HAL_PCD_SOFCallback;
		419	break;
		420
		421	case HAL_PCD_SETUPSTAGE_CB_ID :
		422	hpcd->SetupStageCallback = HAL_PCD_SetupStageCallback;
		423	break;
		424
		425	case HAL_PCD_RESET_CB_ID :
		426	hpcd->ResetCallback = HAL_PCD_ResetCallback;
		427	break;
		428
		429	case HAL_PCD_SUSPEND_CB_ID :
		430	hpcd->SuspendCallback = HAL_PCD_SuspendCallback;
		431	break;
		432
		433	case HAL_PCD_RESUME_CB_ID :
		434	hpcd->ResumeCallback = HAL_PCD_ResumeCallback;
		435	break;
		436
		437	case HAL_PCD_CONNECT_CB_ID :
		438	hpcd->ConnectCallback = HAL_PCD_ConnectCallback;
		439	break;
		440
		441	case HAL_PCD_DISCONNECT_CB_ID :
		442	hpcd->DisconnectCallback = HAL_PCD_DisconnectCallback;
		443	break;
		444
		445	case HAL_PCD_MSPINIT_CB_ID :
		446	hpcd->MspInitCallback = HAL_PCD_MspInit;
		447	break;
		448
		449	case HAL_PCD_MSPDEINIT_CB_ID :
		450	hpcd->MspDeInitCallback = HAL_PCD_MspDeInit;
		451	break;
		452
		453	default :
		454	/* Update the error code */
		455	hpcd->ErrorCode \|= HAL_PCD_ERROR_INVALID_CALLBACK;
		456
		457	/* Return error status */
		458	status = HAL_ERROR;
		459	break;
		460	}
		461	}
		462	else if (hpcd->State == HAL_PCD_STATE_RESET)
		463	{
		464	switch (CallbackID)
		465	{
		466	case HAL_PCD_MSPINIT_CB_ID :
		467	hpcd->MspInitCallback = HAL_PCD_MspInit;
		468	break;
		469
		470	case HAL_PCD_MSPDEINIT_CB_ID :
		471	hpcd->MspDeInitCallback = HAL_PCD_MspDeInit;
		472	break;
		473
		474	default :
		475	/* Update the error code */
		476	hpcd->ErrorCode \|= HAL_PCD_ERROR_INVALID_CALLBACK;
		477
		478	/* Return error status */
		479	status = HAL_ERROR;
		480	break;
		481	}
		482	}
		483	else
		484	{
		485	/* Update the error code */
		486	hpcd->ErrorCode \|= HAL_PCD_ERROR_INVALID_CALLBACK;
		487
		488	/* Return error status */
		489	status = HAL_ERROR;
		490	}
		491
		492	/* Release Lock */
		493	__HAL_UNLOCK(hpcd);
		494	return status;
		495	}
		496
		497	/**
		498	* @brief Register USB PCD Data OUT Stage Callback
		499	* To be used instead of the weak HAL_PCD_DataOutStageCallback() predefined callback
		500	* @param hpcd PCD handle
		501	* @param pCallback pointer to the USB PCD Data OUT Stage Callback function
		502	* @retval HAL status
		503	*/
61	mjames	504	HAL_StatusTypeDef HAL_PCD_RegisterDataOutStageCallback(PCD_HandleTypeDef *hpcd,
		505	pPCD_DataOutStageCallbackTypeDef pCallback)
56	mjames	506	{
		507	HAL_StatusTypeDef status = HAL_OK;
		508
		509	if (pCallback == NULL)
		510	{
		511	/* Update the error code */
		512	hpcd->ErrorCode \|= HAL_PCD_ERROR_INVALID_CALLBACK;
		513
		514	return HAL_ERROR;
		515	}
		516
		517	/* Process locked */
		518	__HAL_LOCK(hpcd);
		519
		520	if (hpcd->State == HAL_PCD_STATE_READY)
		521	{
		522	hpcd->DataOutStageCallback = pCallback;
		523	}
		524	else
		525	{
		526	/* Update the error code */
		527	hpcd->ErrorCode \|= HAL_PCD_ERROR_INVALID_CALLBACK;
		528
		529	/* Return error status */
		530	status = HAL_ERROR;
		531	}
		532
		533	/* Release Lock */
		534	__HAL_UNLOCK(hpcd);
		535
		536	return status;
		537	}
		538
		539	/**
		540	* @brief Unregister the USB PCD Data OUT Stage Callback
		541	* USB PCD Data OUT Stage Callback is redirected to the weak HAL_PCD_DataOutStageCallback() predefined callback
		542	* @param hpcd PCD handle
		543	* @retval HAL status
		544	*/
		545	HAL_StatusTypeDef HAL_PCD_UnRegisterDataOutStageCallback(PCD_HandleTypeDef *hpcd)
		546	{
		547	HAL_StatusTypeDef status = HAL_OK;
		548
		549	/* Process locked */
		550	__HAL_LOCK(hpcd);
		551
		552	if (hpcd->State == HAL_PCD_STATE_READY)
		553	{
		554	hpcd->DataOutStageCallback = HAL_PCD_DataOutStageCallback; /* Legacy weak DataOutStageCallback */
		555	}
		556	else
		557	{
		558	/* Update the error code */
		559	hpcd->ErrorCode \|= HAL_PCD_ERROR_INVALID_CALLBACK;
		560
		561	/* Return error status */
		562	status = HAL_ERROR;
		563	}
		564
		565	/* Release Lock */
		566	__HAL_UNLOCK(hpcd);
		567
		568	return status;
		569	}
		570
		571	/**
		572	* @brief Register USB PCD Data IN Stage Callback
		573	* To be used instead of the weak HAL_PCD_DataInStageCallback() predefined callback
		574	* @param hpcd PCD handle
		575	* @param pCallback pointer to the USB PCD Data IN Stage Callback function
		576	* @retval HAL status
		577	*/
61	mjames	578	HAL_StatusTypeDef HAL_PCD_RegisterDataInStageCallback(PCD_HandleTypeDef *hpcd,
		579	pPCD_DataInStageCallbackTypeDef pCallback)
56	mjames	580	{
		581	HAL_StatusTypeDef status = HAL_OK;
		582
		583	if (pCallback == NULL)
		584	{
		585	/* Update the error code */
		586	hpcd->ErrorCode \|= HAL_PCD_ERROR_INVALID_CALLBACK;
		587
		588	return HAL_ERROR;
		589	}
		590
		591	/* Process locked */
		592	__HAL_LOCK(hpcd);
		593
		594	if (hpcd->State == HAL_PCD_STATE_READY)
		595	{
		596	hpcd->DataInStageCallback = pCallback;
		597	}
		598	else
		599	{
		600	/* Update the error code */
		601	hpcd->ErrorCode \|= HAL_PCD_ERROR_INVALID_CALLBACK;
		602
		603	/* Return error status */
		604	status = HAL_ERROR;
		605	}
		606
		607	/* Release Lock */
		608	__HAL_UNLOCK(hpcd);
		609
		610	return status;
		611	}
		612
		613	/**
		614	* @brief Unregister the USB PCD Data IN Stage Callback
		615	* USB PCD Data OUT Stage Callback is redirected to the weak HAL_PCD_DataInStageCallback() predefined callback
		616	* @param hpcd PCD handle
		617	* @retval HAL status
		618	*/
		619	HAL_StatusTypeDef HAL_PCD_UnRegisterDataInStageCallback(PCD_HandleTypeDef *hpcd)
		620	{
		621	HAL_StatusTypeDef status = HAL_OK;
		622
		623	/* Process locked */
		624	__HAL_LOCK(hpcd);
		625
		626	if (hpcd->State == HAL_PCD_STATE_READY)
		627	{
		628	hpcd->DataInStageCallback = HAL_PCD_DataInStageCallback; /* Legacy weak DataInStageCallback */
		629	}
		630	else
		631	{
		632	/* Update the error code */
		633	hpcd->ErrorCode \|= HAL_PCD_ERROR_INVALID_CALLBACK;
		634
		635	/* Return error status */
		636	status = HAL_ERROR;
		637	}
		638
		639	/* Release Lock */
		640	__HAL_UNLOCK(hpcd);
		641
		642	return status;
		643	}
		644
		645	/**
		646	* @brief Register USB PCD Iso OUT incomplete Callback
		647	* To be used instead of the weak HAL_PCD_ISOOUTIncompleteCallback() predefined callback
		648	* @param hpcd PCD handle
		649	* @param pCallback pointer to the USB PCD Iso OUT incomplete Callback function
		650	* @retval HAL status
		651	*/
61	mjames	652	HAL_StatusTypeDef HAL_PCD_RegisterIsoOutIncpltCallback(PCD_HandleTypeDef *hpcd,
		653	pPCD_IsoOutIncpltCallbackTypeDef pCallback)
56	mjames	654	{
		655	HAL_StatusTypeDef status = HAL_OK;
		656
		657	if (pCallback == NULL)
		658	{
		659	/* Update the error code */
		660	hpcd->ErrorCode \|= HAL_PCD_ERROR_INVALID_CALLBACK;
		661
		662	return HAL_ERROR;
		663	}
		664
		665	/* Process locked */
		666	__HAL_LOCK(hpcd);
		667
		668	if (hpcd->State == HAL_PCD_STATE_READY)
		669	{
		670	hpcd->ISOOUTIncompleteCallback = pCallback;
		671	}
		672	else
		673	{
		674	/* Update the error code */
		675	hpcd->ErrorCode \|= HAL_PCD_ERROR_INVALID_CALLBACK;
		676
		677	/* Return error status */
		678	status = HAL_ERROR;
		679	}
		680
		681	/* Release Lock */
		682	__HAL_UNLOCK(hpcd);
		683
		684	return status;
		685	}
		686
		687	/**
		688	* @brief Unregister the USB PCD Iso OUT incomplete Callback
61	mjames	689	* USB PCD Iso OUT incomplete Callback is redirected
		690	* to the weak HAL_PCD_ISOOUTIncompleteCallback() predefined callback
56	mjames	691	* @param hpcd PCD handle
		692	* @retval HAL status
		693	*/
		694	HAL_StatusTypeDef HAL_PCD_UnRegisterIsoOutIncpltCallback(PCD_HandleTypeDef *hpcd)
		695	{
		696	HAL_StatusTypeDef status = HAL_OK;
		697
		698	/* Process locked */
		699	__HAL_LOCK(hpcd);
		700
		701	if (hpcd->State == HAL_PCD_STATE_READY)
		702	{
		703	hpcd->ISOOUTIncompleteCallback = HAL_PCD_ISOOUTIncompleteCallback; /* Legacy weak ISOOUTIncompleteCallback */
		704	}
		705	else
		706	{
		707	/* Update the error code */
		708	hpcd->ErrorCode \|= HAL_PCD_ERROR_INVALID_CALLBACK;
		709
		710	/* Return error status */
		711	status = HAL_ERROR;
		712	}
		713
		714	/* Release Lock */
		715	__HAL_UNLOCK(hpcd);
		716
		717	return status;
		718	}
		719
		720	/**
		721	* @brief Register USB PCD Iso IN incomplete Callback
		722	* To be used instead of the weak HAL_PCD_ISOINIncompleteCallback() predefined callback
		723	* @param hpcd PCD handle
		724	* @param pCallback pointer to the USB PCD Iso IN incomplete Callback function
		725	* @retval HAL status
		726	*/
61	mjames	727	HAL_StatusTypeDef HAL_PCD_RegisterIsoInIncpltCallback(PCD_HandleTypeDef *hpcd,
		728	pPCD_IsoInIncpltCallbackTypeDef pCallback)
56	mjames	729	{
		730	HAL_StatusTypeDef status = HAL_OK;
		731
		732	if (pCallback == NULL)
		733	{
		734	/* Update the error code */
		735	hpcd->ErrorCode \|= HAL_PCD_ERROR_INVALID_CALLBACK;
		736
		737	return HAL_ERROR;
		738	}
		739
		740	/* Process locked */
		741	__HAL_LOCK(hpcd);
		742
		743	if (hpcd->State == HAL_PCD_STATE_READY)
		744	{
		745	hpcd->ISOINIncompleteCallback = pCallback;
		746	}
		747	else
		748	{
		749	/* Update the error code */
		750	hpcd->ErrorCode \|= HAL_PCD_ERROR_INVALID_CALLBACK;
		751
		752	/* Return error status */
		753	status = HAL_ERROR;
		754	}
		755
		756	/* Release Lock */
		757	__HAL_UNLOCK(hpcd);
		758
		759	return status;
		760	}
		761
		762	/**
		763	* @brief Unregister the USB PCD Iso IN incomplete Callback
61	mjames	764	* USB PCD Iso IN incomplete Callback is redirected
		765	* to the weak HAL_PCD_ISOINIncompleteCallback() predefined callback
56	mjames	766	* @param hpcd PCD handle
		767	* @retval HAL status
		768	*/
		769	HAL_StatusTypeDef HAL_PCD_UnRegisterIsoInIncpltCallback(PCD_HandleTypeDef *hpcd)
		770	{
		771	HAL_StatusTypeDef status = HAL_OK;
		772
		773	/* Process locked */
		774	__HAL_LOCK(hpcd);
		775
		776	if (hpcd->State == HAL_PCD_STATE_READY)
		777	{
		778	hpcd->ISOINIncompleteCallback = HAL_PCD_ISOINIncompleteCallback; /* Legacy weak ISOINIncompleteCallback */
		779	}
		780	else
		781	{
		782	/* Update the error code */
		783	hpcd->ErrorCode \|= HAL_PCD_ERROR_INVALID_CALLBACK;
		784
		785	/* Return error status */
		786	status = HAL_ERROR;
		787	}
		788
		789	/* Release Lock */
		790	__HAL_UNLOCK(hpcd);
		791
		792	return status;
		793	}
		794
		795	#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
		796
		797	/**
		798	* @}
		799	*/
		800
		801	/** @defgroup PCD_Exported_Functions_Group2 Input and Output operation functions
		802	* @brief Data transfers functions
		803	*
		804	@verbatim
		805	===============================================================================
		806	##### IO operation functions #####
		807	===============================================================================
		808	[..]
		809	This subsection provides a set of functions allowing to manage the PCD data
		810	transfers.
		811
		812	@endverbatim
		813	* @{
		814	*/
		815
		816	/**
		817	* @brief Start the USB device
		818	* @param hpcd PCD handle
		819	* @retval HAL status
		820	*/
		821	HAL_StatusTypeDef HAL_PCD_Start(PCD_HandleTypeDef *hpcd)
		822	{
		823	__HAL_LOCK(hpcd);
		824	__HAL_PCD_ENABLE(hpcd);
		825
		826	HAL_PCDEx_SetConnectionState(hpcd, 1U);
		827
		828	(void)USB_DevConnect(hpcd->Instance);
		829	__HAL_UNLOCK(hpcd);
		830
		831	return HAL_OK;
		832	}
		833
		834	/**
		835	* @brief Stop the USB device.
		836	* @param hpcd PCD handle
		837	* @retval HAL status
		838	*/
		839	HAL_StatusTypeDef HAL_PCD_Stop(PCD_HandleTypeDef *hpcd)
		840	{
		841	__HAL_LOCK(hpcd);
		842	__HAL_PCD_DISABLE(hpcd);
		843
		844	HAL_PCDEx_SetConnectionState(hpcd, 0U);
		845
		846	(void)USB_DevDisconnect(hpcd->Instance);
		847	__HAL_UNLOCK(hpcd);
		848
		849	return HAL_OK;
		850	}
		851
		852
		853	/**
		854	* @brief This function handles PCD interrupt request.
		855	* @param hpcd PCD handle
		856	* @retval HAL status
		857	*/
		858	void HAL_PCD_IRQHandler(PCD_HandleTypeDef *hpcd)
		859	{
		860	if (__HAL_PCD_GET_FLAG(hpcd, USB_ISTR_CTR))
		861	{
		862	/* servicing of the endpoint correct transfer interrupt */
		863	/* clear of the CTR flag into the sub */
		864	(void)PCD_EP_ISR_Handler(hpcd);
		865	}
		866
		867	if (__HAL_PCD_GET_FLAG(hpcd, USB_ISTR_RESET))
		868	{
		869	__HAL_PCD_CLEAR_FLAG(hpcd, USB_ISTR_RESET);
		870
		871	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		872	hpcd->ResetCallback(hpcd);
		873	#else
		874	HAL_PCD_ResetCallback(hpcd);
		875	#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
		876
		877	(void)HAL_PCD_SetAddress(hpcd, 0U);
		878	}
		879
		880	if (__HAL_PCD_GET_FLAG(hpcd, USB_ISTR_PMAOVR))
		881	{
		882	__HAL_PCD_CLEAR_FLAG(hpcd, USB_ISTR_PMAOVR);
		883	}
		884
		885	if (__HAL_PCD_GET_FLAG(hpcd, USB_ISTR_ERR))
		886	{
		887	__HAL_PCD_CLEAR_FLAG(hpcd, USB_ISTR_ERR);
		888	}
		889
		890	if (__HAL_PCD_GET_FLAG(hpcd, USB_ISTR_WKUP))
		891	{
		892	hpcd->Instance->CNTR &= (uint16_t) ~(USB_CNTR_LPMODE);
		893	hpcd->Instance->CNTR &= (uint16_t) ~(USB_CNTR_FSUSP);
		894
		895	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		896	hpcd->ResumeCallback(hpcd);
		897	#else
		898	HAL_PCD_ResumeCallback(hpcd);
		899	#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
		900
		901	__HAL_PCD_CLEAR_FLAG(hpcd, USB_ISTR_WKUP);
		902	}
		903
		904	if (__HAL_PCD_GET_FLAG(hpcd, USB_ISTR_SUSP))
		905	{
		906	/* Force low-power mode in the macrocell */
		907	hpcd->Instance->CNTR \|= (uint16_t)USB_CNTR_FSUSP;
		908
		909	/* clear of the ISTR bit must be done after setting of CNTR_FSUSP */
		910	__HAL_PCD_CLEAR_FLAG(hpcd, USB_ISTR_SUSP);
		911
		912	hpcd->Instance->CNTR \|= (uint16_t)USB_CNTR_LPMODE;
		913
		914	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		915	hpcd->SuspendCallback(hpcd);
		916	#else
		917	HAL_PCD_SuspendCallback(hpcd);
		918	#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
		919	}
		920
		921	if (__HAL_PCD_GET_FLAG(hpcd, USB_ISTR_SOF))
		922	{
		923	__HAL_PCD_CLEAR_FLAG(hpcd, USB_ISTR_SOF);
		924
		925	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		926	hpcd->SOFCallback(hpcd);
		927	#else
		928	HAL_PCD_SOFCallback(hpcd);
		929	#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
		930	}
		931
		932	if (__HAL_PCD_GET_FLAG(hpcd, USB_ISTR_ESOF))
		933	{
		934	/* clear ESOF flag in ISTR */
		935	__HAL_PCD_CLEAR_FLAG(hpcd, USB_ISTR_ESOF);
		936	}
		937	}
		938
		939
		940	/**
		941	* @brief Handles PCD Wakeup interrupt request.
		942	* @param hpcd PCD handle
		943	* @retval HAL status
		944	*/
		945	void HAL_PCD_WKUP_IRQHandler(PCD_HandleTypeDef *hpcd)
		946	{
		947	/* Clear EXTI pending Bit */
		948	__HAL_USB_WAKEUP_EXTI_CLEAR_FLAG();
		949	}
		950
		951
		952	/**
		953	* @brief Data OUT stage callback.
		954	* @param hpcd PCD handle
		955	* @param epnum endpoint number
		956	* @retval None
		957	*/
		958	__weak void HAL_PCD_DataOutStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
		959	{
		960	/* Prevent unused argument(s) compilation warning */
		961	UNUSED(hpcd);
		962	UNUSED(epnum);
		963
		964	/* NOTE : This function should not be modified, when the callback is needed,
		965	the HAL_PCD_DataOutStageCallback could be implemented in the user file
		966	*/
		967	}
		968
		969	/**
		970	* @brief Data IN stage callback
		971	* @param hpcd PCD handle
		972	* @param epnum endpoint number
		973	* @retval None
		974	*/
		975	__weak void HAL_PCD_DataInStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
		976	{
		977	/* Prevent unused argument(s) compilation warning */
		978	UNUSED(hpcd);
		979	UNUSED(epnum);
		980
		981	/* NOTE : This function should not be modified, when the callback is needed,
		982	the HAL_PCD_DataInStageCallback could be implemented in the user file
		983	*/
		984	}
		985	/**
		986	* @brief Setup stage callback
		987	* @param hpcd PCD handle
		988	* @retval None
		989	*/
		990	__weak void HAL_PCD_SetupStageCallback(PCD_HandleTypeDef *hpcd)
		991	{
		992	/* Prevent unused argument(s) compilation warning */
		993	UNUSED(hpcd);
		994
		995	/* NOTE : This function should not be modified, when the callback is needed,
		996	the HAL_PCD_SetupStageCallback could be implemented in the user file
		997	*/
		998	}
		999
		1000	/**
		1001	* @brief USB Start Of Frame callback.
		1002	* @param hpcd PCD handle
		1003	* @retval None
		1004	*/
		1005	__weak void HAL_PCD_SOFCallback(PCD_HandleTypeDef *hpcd)
		1006	{
		1007	/* Prevent unused argument(s) compilation warning */
		1008	UNUSED(hpcd);
		1009
		1010	/* NOTE : This function should not be modified, when the callback is needed,
		1011	the HAL_PCD_SOFCallback could be implemented in the user file
		1012	*/
		1013	}
		1014
		1015	/**
		1016	* @brief USB Reset callback.
		1017	* @param hpcd PCD handle
		1018	* @retval None
		1019	*/
		1020	__weak void HAL_PCD_ResetCallback(PCD_HandleTypeDef *hpcd)
		1021	{
		1022	/* Prevent unused argument(s) compilation warning */
		1023	UNUSED(hpcd);
		1024
		1025	/* NOTE : This function should not be modified, when the callback is needed,
		1026	the HAL_PCD_ResetCallback could be implemented in the user file
		1027	*/
		1028	}
		1029
		1030	/**
		1031	* @brief Suspend event callback.
		1032	* @param hpcd PCD handle
		1033	* @retval None
		1034	*/
		1035	__weak void HAL_PCD_SuspendCallback(PCD_HandleTypeDef *hpcd)
		1036	{
		1037	/* Prevent unused argument(s) compilation warning */
		1038	UNUSED(hpcd);
		1039
		1040	/* NOTE : This function should not be modified, when the callback is needed,
		1041	the HAL_PCD_SuspendCallback could be implemented in the user file
		1042	*/
		1043	}
		1044
		1045	/**
		1046	* @brief Resume event callback.
		1047	* @param hpcd PCD handle
		1048	* @retval None
		1049	*/
		1050	__weak void HAL_PCD_ResumeCallback(PCD_HandleTypeDef *hpcd)
		1051	{
		1052	/* Prevent unused argument(s) compilation warning */
		1053	UNUSED(hpcd);
		1054
		1055	/* NOTE : This function should not be modified, when the callback is needed,
		1056	the HAL_PCD_ResumeCallback could be implemented in the user file
		1057	*/
		1058	}
		1059
		1060	/**
		1061	* @brief Incomplete ISO OUT callback.
		1062	* @param hpcd PCD handle
		1063	* @param epnum endpoint number
		1064	* @retval None
		1065	*/
		1066	__weak void HAL_PCD_ISOOUTIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
		1067	{
		1068	/* Prevent unused argument(s) compilation warning */
		1069	UNUSED(hpcd);
		1070	UNUSED(epnum);
		1071
		1072	/* NOTE : This function should not be modified, when the callback is needed,
		1073	the HAL_PCD_ISOOUTIncompleteCallback could be implemented in the user file
		1074	*/
		1075	}
		1076
		1077	/**
		1078	* @brief Incomplete ISO IN callback.
		1079	* @param hpcd PCD handle
		1080	* @param epnum endpoint number
		1081	* @retval None
		1082	*/
		1083	__weak void HAL_PCD_ISOINIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
		1084	{
		1085	/* Prevent unused argument(s) compilation warning */
		1086	UNUSED(hpcd);
		1087	UNUSED(epnum);
		1088
		1089	/* NOTE : This function should not be modified, when the callback is needed,
		1090	the HAL_PCD_ISOINIncompleteCallback could be implemented in the user file
		1091	*/
		1092	}
		1093
		1094	/**
		1095	* @brief Connection event callback.
		1096	* @param hpcd PCD handle
		1097	* @retval None
		1098	*/
		1099	__weak void HAL_PCD_ConnectCallback(PCD_HandleTypeDef *hpcd)
		1100	{
		1101	/* Prevent unused argument(s) compilation warning */
		1102	UNUSED(hpcd);
		1103
		1104	/* NOTE : This function should not be modified, when the callback is needed,
		1105	the HAL_PCD_ConnectCallback could be implemented in the user file
		1106	*/
		1107	}
		1108
		1109	/**
		1110	* @brief Disconnection event callback.
		1111	* @param hpcd PCD handle
		1112	* @retval None
		1113	*/
		1114	__weak void HAL_PCD_DisconnectCallback(PCD_HandleTypeDef *hpcd)
		1115	{
		1116	/* Prevent unused argument(s) compilation warning */
		1117	UNUSED(hpcd);
		1118
		1119	/* NOTE : This function should not be modified, when the callback is needed,
		1120	the HAL_PCD_DisconnectCallback could be implemented in the user file
		1121	*/
		1122	}
		1123
		1124	/**
		1125	* @}
		1126	*/
		1127
		1128	/** @defgroup PCD_Exported_Functions_Group3 Peripheral Control functions
		1129	* @brief management functions
		1130	*
		1131	@verbatim
		1132	===============================================================================
		1133	##### Peripheral Control functions #####
		1134	===============================================================================
		1135	[..]
		1136	This subsection provides a set of functions allowing to control the PCD data
		1137	transfers.
		1138
		1139	@endverbatim
		1140	* @{
		1141	*/
		1142
		1143	/**
		1144	* @brief Connect the USB device
		1145	* @param hpcd PCD handle
		1146	* @retval HAL status
		1147	*/
		1148	HAL_StatusTypeDef HAL_PCD_DevConnect(PCD_HandleTypeDef *hpcd)
		1149	{
		1150	__HAL_LOCK(hpcd);
		1151
		1152	HAL_PCDEx_SetConnectionState(hpcd, 1U);
		1153
		1154	(void)USB_DevConnect(hpcd->Instance);
		1155	__HAL_UNLOCK(hpcd);
		1156
		1157	return HAL_OK;
		1158	}
		1159
		1160	/**
		1161	* @brief Disconnect the USB device.
		1162	* @param hpcd PCD handle
		1163	* @retval HAL status
		1164	*/
		1165	HAL_StatusTypeDef HAL_PCD_DevDisconnect(PCD_HandleTypeDef *hpcd)
		1166	{
		1167	__HAL_LOCK(hpcd);
		1168
		1169	HAL_PCDEx_SetConnectionState(hpcd, 0U);
		1170
		1171	(void)USB_DevDisconnect(hpcd->Instance);
		1172	__HAL_UNLOCK(hpcd);
		1173
		1174	return HAL_OK;
		1175	}
		1176
		1177	/**
		1178	* @brief Set the USB Device address.
		1179	* @param hpcd PCD handle
		1180	* @param address new device address
		1181	* @retval HAL status
		1182	*/
		1183	HAL_StatusTypeDef HAL_PCD_SetAddress(PCD_HandleTypeDef *hpcd, uint8_t address)
		1184	{
		1185	__HAL_LOCK(hpcd);
		1186	hpcd->USB_Address = address;
		1187	(void)USB_SetDevAddress(hpcd->Instance, address);
		1188	__HAL_UNLOCK(hpcd);
		1189
		1190	return HAL_OK;
		1191	}
		1192	/**
		1193	* @brief Open and configure an endpoint.
		1194	* @param hpcd PCD handle
		1195	* @param ep_addr endpoint address
		1196	* @param ep_mps endpoint max packet size
		1197	* @param ep_type endpoint type
		1198	* @retval HAL status
		1199	*/
61	mjames	1200	HAL_StatusTypeDef HAL_PCD_EP_Open(PCD_HandleTypeDef *hpcd, uint8_t ep_addr,
		1201	uint16_t ep_mps, uint8_t ep_type)
56	mjames	1202	{
		1203	HAL_StatusTypeDef ret = HAL_OK;
		1204	PCD_EPTypeDef *ep;
		1205
		1206	if ((ep_addr & 0x80U) == 0x80U)
		1207	{
		1208	ep = &hpcd->IN_ep[ep_addr & EP_ADDR_MSK];
		1209	ep->is_in = 1U;
		1210	}
		1211	else
		1212	{
		1213	ep = &hpcd->OUT_ep[ep_addr & EP_ADDR_MSK];
		1214	ep->is_in = 0U;
		1215	}
		1216
		1217	ep->num = ep_addr & EP_ADDR_MSK;
		1218	ep->maxpacket = ep_mps;
		1219	ep->type = ep_type;
		1220
		1221	if (ep->is_in != 0U)
		1222	{
		1223	/* Assign a Tx FIFO */
		1224	ep->tx_fifo_num = ep->num;
		1225	}
		1226	/* Set initial data PID. */
		1227	if (ep_type == EP_TYPE_BULK)
		1228	{
		1229	ep->data_pid_start = 0U;
		1230	}
		1231
		1232	__HAL_LOCK(hpcd);
		1233	(void)USB_ActivateEndpoint(hpcd->Instance, ep);
		1234	__HAL_UNLOCK(hpcd);
		1235
		1236	return ret;
		1237	}
		1238
		1239	/**
		1240	* @brief Deactivate an endpoint.
		1241	* @param hpcd PCD handle
		1242	* @param ep_addr endpoint address
		1243	* @retval HAL status
		1244	*/
		1245	HAL_StatusTypeDef HAL_PCD_EP_Close(PCD_HandleTypeDef *hpcd, uint8_t ep_addr)
		1246	{
		1247	PCD_EPTypeDef *ep;
		1248
		1249	if ((ep_addr & 0x80U) == 0x80U)
		1250	{
		1251	ep = &hpcd->IN_ep[ep_addr & EP_ADDR_MSK];
		1252	ep->is_in = 1U;
		1253	}
		1254	else
		1255	{
		1256	ep = &hpcd->OUT_ep[ep_addr & EP_ADDR_MSK];
		1257	ep->is_in = 0U;
		1258	}
		1259	ep->num = ep_addr & EP_ADDR_MSK;
		1260
		1261	__HAL_LOCK(hpcd);
		1262	(void)USB_DeactivateEndpoint(hpcd->Instance, ep);
		1263	__HAL_UNLOCK(hpcd);
		1264	return HAL_OK;
		1265	}
		1266
		1267
		1268	/**
		1269	* @brief Receive an amount of data.
		1270	* @param hpcd PCD handle
		1271	* @param ep_addr endpoint address
		1272	* @param pBuf pointer to the reception buffer
		1273	* @param len amount of data to be received
		1274	* @retval HAL status
		1275	*/
		1276	HAL_StatusTypeDef HAL_PCD_EP_Receive(PCD_HandleTypeDef hpcd, uint8_t ep_addr, uint8_t pBuf, uint32_t len)
		1277	{
		1278	PCD_EPTypeDef *ep;
		1279
		1280	ep = &hpcd->OUT_ep[ep_addr & EP_ADDR_MSK];
		1281
		1282	/setup and start the Xfer /
		1283	ep->xfer_buff = pBuf;
		1284	ep->xfer_len = len;
		1285	ep->xfer_count = 0U;
		1286	ep->is_in = 0U;
		1287	ep->num = ep_addr & EP_ADDR_MSK;
		1288
		1289	if ((ep_addr & EP_ADDR_MSK) == 0U)
		1290	{
		1291	(void)USB_EP0StartXfer(hpcd->Instance, ep);
		1292	}
		1293	else
		1294	{
		1295	(void)USB_EPStartXfer(hpcd->Instance, ep);
		1296	}
		1297
		1298	return HAL_OK;
		1299	}
		1300
		1301	/**
		1302	* @brief Get Received Data Size
		1303	* @param hpcd PCD handle
		1304	* @param ep_addr endpoint address
		1305	* @retval Data Size
		1306	*/
		1307	uint32_t HAL_PCD_EP_GetRxCount(PCD_HandleTypeDef *hpcd, uint8_t ep_addr)
		1308	{
		1309	return hpcd->OUT_ep[ep_addr & EP_ADDR_MSK].xfer_count;
		1310	}
		1311	/**
		1312	* @brief Send an amount of data
		1313	* @param hpcd PCD handle
		1314	* @param ep_addr endpoint address
		1315	* @param pBuf pointer to the transmission buffer
		1316	* @param len amount of data to be sent
		1317	* @retval HAL status
		1318	*/
		1319	HAL_StatusTypeDef HAL_PCD_EP_Transmit(PCD_HandleTypeDef hpcd, uint8_t ep_addr, uint8_t pBuf, uint32_t len)
		1320	{
		1321	PCD_EPTypeDef *ep;
		1322
		1323	ep = &hpcd->IN_ep[ep_addr & EP_ADDR_MSK];
		1324
		1325	/setup and start the Xfer /
		1326	ep->xfer_buff = pBuf;
		1327	ep->xfer_len = len;
		1328	ep->xfer_fill_db = 1U;
		1329	ep->xfer_len_db = len;
		1330	ep->xfer_count = 0U;
		1331	ep->is_in = 1U;
		1332	ep->num = ep_addr & EP_ADDR_MSK;
		1333
		1334	if ((ep_addr & EP_ADDR_MSK) == 0U)
		1335	{
		1336	(void)USB_EP0StartXfer(hpcd->Instance, ep);
		1337	}
		1338	else
		1339	{
		1340	(void)USB_EPStartXfer(hpcd->Instance, ep);
		1341	}
		1342
		1343	return HAL_OK;
		1344	}
		1345
		1346	/**
		1347	* @brief Set a STALL condition over an endpoint
		1348	* @param hpcd PCD handle
		1349	* @param ep_addr endpoint address
		1350	* @retval HAL status
		1351	*/
		1352	HAL_StatusTypeDef HAL_PCD_EP_SetStall(PCD_HandleTypeDef *hpcd, uint8_t ep_addr)
		1353	{
		1354	PCD_EPTypeDef *ep;
		1355
		1356	if (((uint32_t)ep_addr & EP_ADDR_MSK) > hpcd->Init.dev_endpoints)
		1357	{
		1358	return HAL_ERROR;
		1359	}
		1360
		1361	if ((0x80U & ep_addr) == 0x80U)
		1362	{
		1363	ep = &hpcd->IN_ep[ep_addr & EP_ADDR_MSK];
		1364	ep->is_in = 1U;
		1365	}
		1366	else
		1367	{
		1368	ep = &hpcd->OUT_ep[ep_addr];
		1369	ep->is_in = 0U;
		1370	}
		1371
		1372	ep->is_stall = 1U;
		1373	ep->num = ep_addr & EP_ADDR_MSK;
		1374
		1375	__HAL_LOCK(hpcd);
		1376
		1377	(void)USB_EPSetStall(hpcd->Instance, ep);
61	mjames	1378
56	mjames	1379	__HAL_UNLOCK(hpcd);
		1380
		1381	return HAL_OK;
		1382	}
		1383
		1384	/**
		1385	* @brief Clear a STALL condition over in an endpoint
		1386	* @param hpcd PCD handle
		1387	* @param ep_addr endpoint address
		1388	* @retval HAL status
		1389	*/
		1390	HAL_StatusTypeDef HAL_PCD_EP_ClrStall(PCD_HandleTypeDef *hpcd, uint8_t ep_addr)
		1391	{
		1392	PCD_EPTypeDef *ep;
		1393
		1394	if (((uint32_t)ep_addr & 0x0FU) > hpcd->Init.dev_endpoints)
		1395	{
		1396	return HAL_ERROR;
		1397	}
		1398
		1399	if ((0x80U & ep_addr) == 0x80U)
		1400	{
		1401	ep = &hpcd->IN_ep[ep_addr & EP_ADDR_MSK];
		1402	ep->is_in = 1U;
		1403	}
		1404	else
		1405	{
		1406	ep = &hpcd->OUT_ep[ep_addr & EP_ADDR_MSK];
		1407	ep->is_in = 0U;
		1408	}
		1409
		1410	ep->is_stall = 0U;
		1411	ep->num = ep_addr & EP_ADDR_MSK;
		1412
		1413	__HAL_LOCK(hpcd);
		1414	(void)USB_EPClearStall(hpcd->Instance, ep);
		1415	__HAL_UNLOCK(hpcd);
		1416
		1417	return HAL_OK;
		1418	}
		1419
		1420	/**
		1421	* @brief Flush an endpoint
		1422	* @param hpcd PCD handle
		1423	* @param ep_addr endpoint address
		1424	* @retval HAL status
		1425	*/
		1426	HAL_StatusTypeDef HAL_PCD_EP_Flush(PCD_HandleTypeDef *hpcd, uint8_t ep_addr)
		1427	{
		1428	/* Prevent unused argument(s) compilation warning */
		1429	UNUSED(hpcd);
		1430	UNUSED(ep_addr);
		1431
		1432	return HAL_OK;
		1433	}
		1434
		1435	/**
		1436	* @brief Activate remote wakeup signalling
		1437	* @param hpcd PCD handle
		1438	* @retval HAL status
		1439	*/
		1440	HAL_StatusTypeDef HAL_PCD_ActivateRemoteWakeup(PCD_HandleTypeDef *hpcd)
		1441	{
		1442	return (USB_ActivateRemoteWakeup(hpcd->Instance));
		1443	}
		1444
		1445	/**
		1446	* @brief De-activate remote wakeup signalling.
		1447	* @param hpcd PCD handle
		1448	* @retval HAL status
		1449	*/
		1450	HAL_StatusTypeDef HAL_PCD_DeActivateRemoteWakeup(PCD_HandleTypeDef *hpcd)
		1451	{
		1452	return (USB_DeActivateRemoteWakeup(hpcd->Instance));
		1453	}
		1454
		1455	/**
		1456	* @}
		1457	*/
		1458
		1459	/** @defgroup PCD_Exported_Functions_Group4 Peripheral State functions
		1460	* @brief Peripheral State functions
		1461	*
		1462	@verbatim
		1463	===============================================================================
		1464	##### Peripheral State functions #####
		1465	===============================================================================
		1466	[..]
		1467	This subsection permits to get in run-time the status of the peripheral
		1468	and the data flow.
		1469
		1470	@endverbatim
		1471	* @{
		1472	*/
		1473
		1474	/**
		1475	* @brief Return the PCD handle state.
		1476	* @param hpcd PCD handle
		1477	* @retval HAL state
		1478	*/
		1479	PCD_StateTypeDef HAL_PCD_GetState(PCD_HandleTypeDef *hpcd)
		1480	{
		1481	return hpcd->State;
		1482	}
		1483
		1484	/**
		1485	* @}
		1486	*/
		1487
		1488	/**
		1489	* @}
		1490	*/
		1491
		1492	/* Private functions ---------------------------------------------------------*/
		1493	/** @addtogroup PCD_Private_Functions
		1494	* @{
		1495	*/
		1496
		1497
		1498	/**
		1499	* @brief This function handles PCD Endpoint interrupt request.
		1500	* @param hpcd PCD handle
		1501	* @retval HAL status
		1502	*/
		1503	static HAL_StatusTypeDef PCD_EP_ISR_Handler(PCD_HandleTypeDef *hpcd)
		1504	{
		1505	PCD_EPTypeDef *ep;
		1506	uint16_t count, wIstr, wEPVal, TxByteNbre;
		1507	uint8_t epindex;
		1508
		1509	/* stay in loop while pending interrupts */
		1510	while ((hpcd->Instance->ISTR & USB_ISTR_CTR) != 0U)
		1511	{
		1512	wIstr = hpcd->Instance->ISTR;
61	mjames	1513
56	mjames	1514	/* extract highest priority endpoint number */
		1515	epindex = (uint8_t)(wIstr & USB_ISTR_EP_ID);
		1516
		1517	if (epindex == 0U)
		1518	{
		1519	/* Decode and service control endpoint interrupt */
		1520
		1521	/* DIR bit = origin of the interrupt */
		1522	if ((wIstr & USB_ISTR_DIR) == 0U)
		1523	{
		1524	/* DIR = 0 */
		1525
		1526	/* DIR = 0 => IN int */
		1527	/* DIR = 0 implies that (EP_CTR_TX = 1) always */
		1528	PCD_CLEAR_TX_EP_CTR(hpcd->Instance, PCD_ENDP0);
		1529	ep = &hpcd->IN_ep[0];
		1530
		1531	ep->xfer_count = PCD_GET_EP_TX_CNT(hpcd->Instance, ep->num);
		1532	ep->xfer_buff += ep->xfer_count;
		1533
		1534	/* TX COMPLETE */
		1535	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		1536	hpcd->DataInStageCallback(hpcd, 0U);
		1537	#else
		1538	HAL_PCD_DataInStageCallback(hpcd, 0U);
		1539	#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
		1540
		1541	if ((hpcd->USB_Address > 0U) && (ep->xfer_len == 0U))
		1542	{
		1543	hpcd->Instance->DADDR = ((uint16_t)hpcd->USB_Address \| USB_DADDR_EF);
		1544	hpcd->USB_Address = 0U;
		1545	}
		1546	}
		1547	else
		1548	{
		1549	/* DIR = 1 */
		1550
		1551	/* DIR = 1 & CTR_RX => SETUP or OUT int */
		1552	/* DIR = 1 & (CTR_TX \| CTR_RX) => 2 int pending */
		1553	ep = &hpcd->OUT_ep[0];
		1554	wEPVal = PCD_GET_ENDPOINT(hpcd->Instance, PCD_ENDP0);
		1555
		1556	if ((wEPVal & USB_EP_SETUP) != 0U)
		1557	{
		1558	/* Get SETUP Packet */
		1559	ep->xfer_count = PCD_GET_EP_RX_CNT(hpcd->Instance, ep->num);
		1560
		1561	USB_ReadPMA(hpcd->Instance, (uint8_t *)hpcd->Setup,
		1562	ep->pmaadress, (uint16_t)ep->xfer_count);
		1563
		1564	/* SETUP bit kept frozen while CTR_RX = 1 */
		1565	PCD_CLEAR_RX_EP_CTR(hpcd->Instance, PCD_ENDP0);
		1566
		1567	/* Process SETUP Packet*/
		1568	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		1569	hpcd->SetupStageCallback(hpcd);
		1570	#else
		1571	HAL_PCD_SetupStageCallback(hpcd);
		1572	#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
		1573	}
		1574	else if ((wEPVal & USB_EP_CTR_RX) != 0U)
		1575	{
		1576	PCD_CLEAR_RX_EP_CTR(hpcd->Instance, PCD_ENDP0);
		1577
		1578	/* Get Control Data OUT Packet */
		1579	ep->xfer_count = PCD_GET_EP_RX_CNT(hpcd->Instance, ep->num);
		1580
		1581	if ((ep->xfer_count != 0U) && (ep->xfer_buff != 0U))
		1582	{
		1583	USB_ReadPMA(hpcd->Instance, ep->xfer_buff,
		1584	ep->pmaadress, (uint16_t)ep->xfer_count);
		1585
		1586	ep->xfer_buff += ep->xfer_count;
		1587
		1588	/* Process Control Data OUT Packet */
		1589	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		1590	hpcd->DataOutStageCallback(hpcd, 0U);
		1591	#else
		1592	HAL_PCD_DataOutStageCallback(hpcd, 0U);
		1593	#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
		1594	}
		1595
61	mjames	1596	if ((PCD_GET_ENDPOINT(hpcd->Instance, PCD_ENDP0) & USB_EP_SETUP) == 0U)
		1597	{
		1598	PCD_SET_EP_RX_CNT(hpcd->Instance, PCD_ENDP0, ep->maxpacket);
		1599	PCD_SET_EP_RX_STATUS(hpcd->Instance, PCD_ENDP0, USB_EP_RX_VALID);
		1600	}
56	mjames	1601	}
		1602	}
		1603	}
		1604	else
		1605	{
		1606	/* Decode and service non control endpoints interrupt */
		1607	/* process related endpoint register */
		1608	wEPVal = PCD_GET_ENDPOINT(hpcd->Instance, epindex);
		1609
		1610	if ((wEPVal & USB_EP_CTR_RX) != 0U)
		1611	{
		1612	/* clear int flag */
		1613	PCD_CLEAR_RX_EP_CTR(hpcd->Instance, epindex);
		1614	ep = &hpcd->OUT_ep[epindex];
		1615
		1616	/* OUT Single Buffering */
		1617	if (ep->doublebuffer == 0U)
		1618	{
		1619	count = (uint16_t)PCD_GET_EP_RX_CNT(hpcd->Instance, ep->num);
		1620
		1621	if (count != 0U)
		1622	{
		1623	USB_ReadPMA(hpcd->Instance, ep->xfer_buff, ep->pmaadress, count);
		1624	}
		1625	}
		1626	else
		1627	{
		1628	/* manage double buffer bulk out */
		1629	if (ep->type == EP_TYPE_BULK)
		1630	{
		1631	count = HAL_PCD_EP_DB_Receive(hpcd, ep, wEPVal);
		1632	}
		1633	else /* manage double buffer iso out */
		1634	{
		1635	/* free EP OUT Buffer */
		1636	PCD_FreeUserBuffer(hpcd->Instance, ep->num, 0U);
		1637
		1638	if ((PCD_GET_ENDPOINT(hpcd->Instance, ep->num) & USB_EP_DTOG_RX) != 0U)
		1639	{
		1640	/* read from endpoint BUF0Addr buffer */
		1641	count = (uint16_t)PCD_GET_EP_DBUF0_CNT(hpcd->Instance, ep->num);
		1642
		1643	if (count != 0U)
		1644	{
		1645	USB_ReadPMA(hpcd->Instance, ep->xfer_buff, ep->pmaaddr0, count);
		1646	}
		1647	}
		1648	else
		1649	{
		1650	/* read from endpoint BUF1Addr buffer */
		1651	count = (uint16_t)PCD_GET_EP_DBUF1_CNT(hpcd->Instance, ep->num);
		1652
		1653	if (count != 0U)
		1654	{
		1655	USB_ReadPMA(hpcd->Instance, ep->xfer_buff, ep->pmaaddr1, count);
		1656	}
		1657	}
		1658	}
		1659	}
		1660	/* multi-packet on the NON control OUT endpoint */
		1661	ep->xfer_count += count;
		1662	ep->xfer_buff += count;
		1663
		1664	if ((ep->xfer_len == 0U) \|\| (count < ep->maxpacket))
		1665	{
		1666	/* RX COMPLETE */
		1667	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		1668	hpcd->DataOutStageCallback(hpcd, ep->num);
		1669	#else
		1670	HAL_PCD_DataOutStageCallback(hpcd, ep->num);
		1671	#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
		1672	}
		1673	else
		1674	{
		1675	(void) USB_EPStartXfer(hpcd->Instance, ep);
		1676	}
		1677
		1678	}
		1679
		1680	if ((wEPVal & USB_EP_CTR_TX) != 0U)
		1681	{
		1682	ep = &hpcd->IN_ep[epindex];
		1683
		1684	/* clear int flag */
		1685	PCD_CLEAR_TX_EP_CTR(hpcd->Instance, epindex);
		1686
61	mjames	1687	/* Manage all non bulk/isoc transaction Bulk Single Buffer Transaction */
		1688	if ((ep->type == EP_TYPE_INTR) \|\| (ep->type == EP_TYPE_CTRL) \|\|
		1689	((ep->type == EP_TYPE_BULK) && ((wEPVal & USB_EP_KIND) == 0U)))
56	mjames	1690	{
		1691	/* multi-packet on the NON control IN endpoint */
		1692	TxByteNbre = (uint16_t)PCD_GET_EP_TX_CNT(hpcd->Instance, ep->num);
		1693
		1694	if (ep->xfer_len > TxByteNbre)
		1695	{
		1696	ep->xfer_len -= TxByteNbre;
		1697	}
		1698	else
		1699	{
		1700	ep->xfer_len = 0U;
		1701	}
		1702
		1703	/* Zero Length Packet? */
		1704	if (ep->xfer_len == 0U)
		1705	{
		1706	/* TX COMPLETE */
		1707	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		1708	hpcd->DataInStageCallback(hpcd, ep->num);
		1709	#else
		1710	HAL_PCD_DataInStageCallback(hpcd, ep->num);
		1711	#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
		1712	}
		1713	else
		1714	{
		1715	/* Transfer is not yet Done */
		1716	ep->xfer_buff += TxByteNbre;
		1717	ep->xfer_count += TxByteNbre;
		1718	(void)USB_EPStartXfer(hpcd->Instance, ep);
		1719	}
		1720	}
61	mjames	1721	/* Double Buffer Iso/bulk IN (bulk transfer Len > Ep_Mps) */
56	mjames	1722	else
		1723	{
		1724	(void)HAL_PCD_EP_DB_Transmit(hpcd, ep, wEPVal);
		1725	}
		1726	}
		1727	}
		1728	}
		1729
		1730	return HAL_OK;
		1731	}
		1732
		1733
		1734	/**
		1735	* @brief Manage double buffer bulk out transaction from ISR
		1736	* @param hpcd PCD handle
		1737	* @param ep current endpoint handle
		1738	* @param wEPVal Last snapshot of EPRx register value taken in ISR
		1739	* @retval HAL status
		1740	*/
		1741	static uint16_t HAL_PCD_EP_DB_Receive(PCD_HandleTypeDef *hpcd,
		1742	PCD_EPTypeDef *ep, uint16_t wEPVal)
		1743	{
		1744	uint16_t count;
		1745
		1746	/* Manage Buffer0 OUT */
		1747	if ((wEPVal & USB_EP_DTOG_RX) != 0U)
		1748	{
		1749	/* Get count of received Data on buffer0 */
		1750	count = (uint16_t)PCD_GET_EP_DBUF0_CNT(hpcd->Instance, ep->num);
		1751
		1752	if (ep->xfer_len >= count)
		1753	{
		1754	ep->xfer_len -= count;
		1755	}
		1756	else
		1757	{
		1758	ep->xfer_len = 0U;
		1759	}
		1760
		1761	if (ep->xfer_len == 0U)
		1762	{
		1763	/* set NAK to OUT endpoint since double buffer is enabled */
		1764	PCD_SET_EP_RX_STATUS(hpcd->Instance, ep->num, USB_EP_RX_NAK);
		1765	}
		1766
		1767	/* Check if Buffer1 is in blocked sate which requires to toggle */
		1768	if ((wEPVal & USB_EP_DTOG_TX) != 0U)
		1769	{
		1770	PCD_FreeUserBuffer(hpcd->Instance, ep->num, 0U);
		1771	}
		1772
		1773	if (count != 0U)
		1774	{
		1775	USB_ReadPMA(hpcd->Instance, ep->xfer_buff, ep->pmaaddr0, count);
		1776	}
		1777	}
		1778	/* Manage Buffer 1 DTOG_RX=0 */
		1779	else
		1780	{
		1781	/* Get count of received data */
		1782	count = (uint16_t)PCD_GET_EP_DBUF1_CNT(hpcd->Instance, ep->num);
		1783
		1784	if (ep->xfer_len >= count)
		1785	{
		1786	ep->xfer_len -= count;
		1787	}
		1788	else
		1789	{
		1790	ep->xfer_len = 0U;
		1791	}
		1792
		1793	if (ep->xfer_len == 0U)
		1794	{
		1795	/* set NAK on the current endpoint */
		1796	PCD_SET_EP_RX_STATUS(hpcd->Instance, ep->num, USB_EP_RX_NAK);
		1797	}
		1798
		1799	/Need to FreeUser Buffer/
		1800	if ((wEPVal & USB_EP_DTOG_TX) == 0U)
		1801	{
		1802	PCD_FreeUserBuffer(hpcd->Instance, ep->num, 0U);
		1803	}
		1804
		1805	if (count != 0U)
		1806	{
		1807	USB_ReadPMA(hpcd->Instance, ep->xfer_buff, ep->pmaaddr1, count);
		1808	}
		1809	}
		1810
		1811	return count;
		1812	}
		1813
		1814
		1815	/**
		1816	* @brief Manage double buffer bulk IN transaction from ISR
		1817	* @param hpcd PCD handle
		1818	* @param ep current endpoint handle
		1819	* @param wEPVal Last snapshot of EPRx register value taken in ISR
		1820	* @retval HAL status
		1821	*/
		1822	static HAL_StatusTypeDef HAL_PCD_EP_DB_Transmit(PCD_HandleTypeDef *hpcd,
		1823	PCD_EPTypeDef *ep, uint16_t wEPVal)
		1824	{
		1825	uint32_t len;
		1826	uint16_t TxByteNbre;
		1827
		1828	/* Data Buffer0 ACK received */
		1829	if ((wEPVal & USB_EP_DTOG_TX) != 0U)
		1830	{
		1831	/* multi-packet on the NON control IN endpoint */
		1832	TxByteNbre = (uint16_t)PCD_GET_EP_DBUF0_CNT(hpcd->Instance, ep->num);
		1833
		1834	if (ep->xfer_len > TxByteNbre)
		1835	{
		1836	ep->xfer_len -= TxByteNbre;
		1837	}
		1838	else
		1839	{
		1840	ep->xfer_len = 0U;
		1841	}
		1842	/* Transfer is completed */
		1843	if (ep->xfer_len == 0U)
		1844	{
61	mjames	1845	PCD_SET_EP_DBUF0_CNT(hpcd->Instance, ep->num, ep->is_in, 0U);
		1846	PCD_SET_EP_DBUF1_CNT(hpcd->Instance, ep->num, ep->is_in, 0U);
		1847
56	mjames	1848	/* TX COMPLETE */
		1849	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		1850	hpcd->DataInStageCallback(hpcd, ep->num);
		1851	#else
		1852	HAL_PCD_DataInStageCallback(hpcd, ep->num);
		1853	#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
		1854
		1855	if ((wEPVal & USB_EP_DTOG_RX) != 0U)
		1856	{
		1857	PCD_FreeUserBuffer(hpcd->Instance, ep->num, 1U);
		1858	}
		1859	}
		1860	else /* Transfer is not yet Done */
		1861	{
		1862	/* need to Free USB Buff */
		1863	if ((wEPVal & USB_EP_DTOG_RX) != 0U)
		1864	{
		1865	PCD_FreeUserBuffer(hpcd->Instance, ep->num, 1U);
		1866	}
		1867
		1868	/* Still there is data to Fill in the next Buffer */
		1869	if (ep->xfer_fill_db == 1U)
		1870	{
		1871	ep->xfer_buff += TxByteNbre;
		1872	ep->xfer_count += TxByteNbre;
		1873
		1874	/* Calculate the len of the new buffer to fill */
		1875	if (ep->xfer_len_db >= ep->maxpacket)
		1876	{
		1877	len = ep->maxpacket;
		1878	ep->xfer_len_db -= len;
		1879	}
		1880	else if (ep->xfer_len_db == 0U)
		1881	{
		1882	len = TxByteNbre;
		1883	ep->xfer_fill_db = 0U;
		1884	}
		1885	else
		1886	{
		1887	ep->xfer_fill_db = 0U;
		1888	len = ep->xfer_len_db;
		1889	ep->xfer_len_db = 0U;
		1890	}
		1891
		1892	/* Write remaining Data to Buffer */
		1893	/* Set the Double buffer counter for pma buffer1 */
		1894	PCD_SET_EP_DBUF0_CNT(hpcd->Instance, ep->num, ep->is_in, len);
		1895
		1896	/* Copy user buffer to USB PMA */
		1897	USB_WritePMA(hpcd->Instance, ep->xfer_buff, ep->pmaaddr0, (uint16_t)len);
		1898	}
		1899	}
		1900	}
		1901	else /* Data Buffer1 ACK received */
		1902	{
		1903	/* multi-packet on the NON control IN endpoint */
		1904	TxByteNbre = (uint16_t)PCD_GET_EP_DBUF1_CNT(hpcd->Instance, ep->num);
		1905
		1906	if (ep->xfer_len >= TxByteNbre)
		1907	{
		1908	ep->xfer_len -= TxByteNbre;
		1909	}
		1910	else
		1911	{
		1912	ep->xfer_len = 0U;
		1913	}
		1914
		1915	/* Transfer is completed */
		1916	if (ep->xfer_len == 0U)
		1917	{
61	mjames	1918	PCD_SET_EP_DBUF0_CNT(hpcd->Instance, ep->num, ep->is_in, 0U);
		1919	PCD_SET_EP_DBUF1_CNT(hpcd->Instance, ep->num, ep->is_in, 0U);
		1920
56	mjames	1921	/* TX COMPLETE */
		1922	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		1923	hpcd->DataInStageCallback(hpcd, ep->num);
		1924	#else
		1925	HAL_PCD_DataInStageCallback(hpcd, ep->num);
		1926	#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
		1927
61	mjames	1928	/* need to Free USB Buff */
56	mjames	1929	if ((wEPVal & USB_EP_DTOG_RX) == 0U)
		1930	{
		1931	PCD_FreeUserBuffer(hpcd->Instance, ep->num, 1U);
		1932	}
		1933	}
		1934	else /* Transfer is not yet Done */
		1935	{
		1936	/* need to Free USB Buff */
		1937	if ((wEPVal & USB_EP_DTOG_RX) == 0U)
		1938	{
		1939	PCD_FreeUserBuffer(hpcd->Instance, ep->num, 1U);
		1940	}
		1941
		1942	/* Still there is data to Fill in the next Buffer */
		1943	if (ep->xfer_fill_db == 1U)
		1944	{
		1945	ep->xfer_buff += TxByteNbre;
		1946	ep->xfer_count += TxByteNbre;
		1947
		1948	/* Calculate the len of the new buffer to fill */
		1949	if (ep->xfer_len_db >= ep->maxpacket)
		1950	{
		1951	len = ep->maxpacket;
		1952	ep->xfer_len_db -= len;
		1953	}
		1954	else if (ep->xfer_len_db == 0U)
		1955	{
		1956	len = TxByteNbre;
		1957	ep->xfer_fill_db = 0U;
		1958	}
		1959	else
		1960	{
		1961	len = ep->xfer_len_db;
		1962	ep->xfer_len_db = 0U;
		1963	ep->xfer_fill_db = 0;
		1964	}
		1965
		1966	/* Set the Double buffer counter for pmabuffer1 */
		1967	PCD_SET_EP_DBUF1_CNT(hpcd->Instance, ep->num, ep->is_in, len);
		1968
		1969	/* Copy the user buffer to USB PMA */
		1970	USB_WritePMA(hpcd->Instance, ep->xfer_buff, ep->pmaaddr1, (uint16_t)len);
		1971	}
		1972	}
		1973	}
		1974
		1975	/enable endpoint IN/
		1976	PCD_SET_EP_TX_STATUS(hpcd->Instance, ep->num, USB_EP_TX_VALID);
		1977
		1978	return HAL_OK;
		1979	}
		1980
		1981
		1982
		1983	/**
		1984	* @}
		1985	*/
		1986	#endif /* defined (USB) */
		1987	#endif /* HAL_PCD_MODULE_ENABLED */
		1988
		1989	/**
		1990	* @}
		1991	*/
		1992
		1993	/**
		1994	* @}
		1995	*/
		1996
		1997	/********************** (C) COPYRIGHT STMicroelectronics *END OF FILE**/

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