WebSVN – testOled – Blame – /trunk/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_pcd.c

Rev	Author	Line No.	Line
2	mjames	1	/**
		2	******************************************************************************
		3	* @file stm32f1xx_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 "stm32f1xx_hal.h"
		58
		59	/** @addtogroup STM32F1xx_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) \|\| defined (USB_OTG_FS)
		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	#if defined (USB_OTG_FS)
		90	static HAL_StatusTypeDef PCD_WriteEmptyTxFifo(PCD_HandleTypeDef *hpcd, uint32_t epnum);
		91	static HAL_StatusTypeDef PCD_EP_OutXfrComplete_int(PCD_HandleTypeDef *hpcd, uint32_t epnum);
		92	static HAL_StatusTypeDef PCD_EP_OutSetupPacket_int(PCD_HandleTypeDef *hpcd, uint32_t epnum);
		93	#endif /* defined (USB_OTG_FS) */
		94
		95	#if defined (USB)
		96	static HAL_StatusTypeDef PCD_EP_ISR_Handler(PCD_HandleTypeDef *hpcd);
		97	static HAL_StatusTypeDef HAL_PCD_EP_DB_Transmit(PCD_HandleTypeDef hpcd, PCD_EPTypeDef ep, uint16_t wEPVal);
		98	static uint16_t HAL_PCD_EP_DB_Receive(PCD_HandleTypeDef hpcd, PCD_EPTypeDef ep, uint16_t wEPVal);
		99	#endif /* defined (USB) */
		100	/**
		101	* @}
		102	*/
		103
		104	/* Exported functions --------------------------------------------------------*/
		105	/** @defgroup PCD_Exported_Functions PCD Exported Functions
		106	* @{
		107	*/
		108
		109	/** @defgroup PCD_Exported_Functions_Group1 Initialization and de-initialization functions
		110	* @brief Initialization and Configuration functions
		111	*
		112	@verbatim
		113	===============================================================================
		114	##### Initialization and de-initialization functions #####
		115	===============================================================================
		116	[..] This section provides functions allowing to:
		117
		118	@endverbatim
		119	* @{
		120	*/
		121
		122	/**
		123	* @brief Initializes the PCD according to the specified
		124	* parameters in the PCD_InitTypeDef and initialize the associated handle.
		125	* @param hpcd PCD handle
		126	* @retval HAL status
		127	*/
		128	HAL_StatusTypeDef HAL_PCD_Init(PCD_HandleTypeDef *hpcd)
		129	{
		130	#if defined (USB_OTG_FS)
		131	USB_OTG_GlobalTypeDef *USBx;
		132	#endif /* defined (USB_OTG_FS) */
		133	uint8_t i;
		134
		135	/* Check the PCD handle allocation */
		136	if (hpcd == NULL)
		137	{
		138	return HAL_ERROR;
		139	}
		140
		141	/* Check the parameters */
		142	assert_param(IS_PCD_ALL_INSTANCE(hpcd->Instance));
		143
		144	#if defined (USB_OTG_FS)
		145	USBx = hpcd->Instance;
		146	#endif /* defined (USB_OTG_FS) */
		147
		148	if (hpcd->State == HAL_PCD_STATE_RESET)
		149	{
		150	/* Allocate lock resource and initialize it */
		151	hpcd->Lock = HAL_UNLOCKED;
		152
		153	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		154	hpcd->SOFCallback = HAL_PCD_SOFCallback;
		155	hpcd->SetupStageCallback = HAL_PCD_SetupStageCallback;
		156	hpcd->ResetCallback = HAL_PCD_ResetCallback;
		157	hpcd->SuspendCallback = HAL_PCD_SuspendCallback;
		158	hpcd->ResumeCallback = HAL_PCD_ResumeCallback;
		159	hpcd->ConnectCallback = HAL_PCD_ConnectCallback;
		160	hpcd->DisconnectCallback = HAL_PCD_DisconnectCallback;
		161	hpcd->DataOutStageCallback = HAL_PCD_DataOutStageCallback;
		162	hpcd->DataInStageCallback = HAL_PCD_DataInStageCallback;
		163	hpcd->ISOOUTIncompleteCallback = HAL_PCD_ISOOUTIncompleteCallback;
		164	hpcd->ISOINIncompleteCallback = HAL_PCD_ISOINIncompleteCallback;
		165
		166	if (hpcd->MspInitCallback == NULL)
		167	{
		168	hpcd->MspInitCallback = HAL_PCD_MspInit;
		169	}
		170
		171	/* Init the low level hardware */
		172	hpcd->MspInitCallback(hpcd);
		173	#else
		174	/* Init the low level hardware : GPIO, CLOCK, NVIC... */
		175	HAL_PCD_MspInit(hpcd);
		176	#endif /* (USE_HAL_PCD_REGISTER_CALLBACKS) */
		177	}
		178
		179	hpcd->State = HAL_PCD_STATE_BUSY;
		180
		181	#if defined (USB_OTG_FS)
		182	/* Disable DMA mode for FS instance */
		183	if ((USBx->CID & (0x1U << 8)) == 0U)
		184	{
		185	hpcd->Init.dma_enable = 0U;
		186	}
		187	#endif /* defined (USB_OTG_FS) */
		188
		189	/* Disable the Interrupts */
		190	__HAL_PCD_DISABLE(hpcd);
		191
		192	/Init the Core (common init.) /
		193	if (USB_CoreInit(hpcd->Instance, hpcd->Init) != HAL_OK)
		194	{
		195	hpcd->State = HAL_PCD_STATE_ERROR;
		196	return HAL_ERROR;
		197	}
		198
		199	/* Force Device Mode*/
		200	(void)USB_SetCurrentMode(hpcd->Instance, USB_DEVICE_MODE);
		201
		202	/* Init endpoints structures */
		203	for (i = 0U; i < hpcd->Init.dev_endpoints; i++)
		204	{
		205	/* Init ep structure */
		206	hpcd->IN_ep[i].is_in = 1U;
		207	hpcd->IN_ep[i].num = i;
		208	hpcd->IN_ep[i].tx_fifo_num = i;
		209	/* Control until ep is activated */
		210	hpcd->IN_ep[i].type = EP_TYPE_CTRL;
		211	hpcd->IN_ep[i].maxpacket = 0U;
		212	hpcd->IN_ep[i].xfer_buff = 0U;
		213	hpcd->IN_ep[i].xfer_len = 0U;
		214	}
		215
		216	for (i = 0U; i < hpcd->Init.dev_endpoints; i++)
		217	{
		218	hpcd->OUT_ep[i].is_in = 0U;
		219	hpcd->OUT_ep[i].num = i;
		220	/* Control until ep is activated */
		221	hpcd->OUT_ep[i].type = EP_TYPE_CTRL;
		222	hpcd->OUT_ep[i].maxpacket = 0U;
		223	hpcd->OUT_ep[i].xfer_buff = 0U;
		224	hpcd->OUT_ep[i].xfer_len = 0U;
		225	}
		226
		227	/* Init Device */
		228	if (USB_DevInit(hpcd->Instance, hpcd->Init) != HAL_OK)
		229	{
		230	hpcd->State = HAL_PCD_STATE_ERROR;
		231	return HAL_ERROR;
		232	}
		233
		234	hpcd->USB_Address = 0U;
		235	hpcd->State = HAL_PCD_STATE_READY;
		236	(void)USB_DevDisconnect(hpcd->Instance);
		237
		238	return HAL_OK;
		239	}
		240
		241	/**
		242	* @brief DeInitializes the PCD peripheral.
		243	* @param hpcd PCD handle
		244	* @retval HAL status
		245	*/
		246	HAL_StatusTypeDef HAL_PCD_DeInit(PCD_HandleTypeDef *hpcd)
		247	{
		248	/* Check the PCD handle allocation */
		249	if (hpcd == NULL)
		250	{
		251	return HAL_ERROR;
		252	}
		253
		254	hpcd->State = HAL_PCD_STATE_BUSY;
		255
		256	/* Stop Device */
		257	if (USB_StopDevice(hpcd->Instance) != HAL_OK)
		258	{
		259	return HAL_ERROR;
		260	}
		261
		262	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		263	if (hpcd->MspDeInitCallback == NULL)
		264	{
		265	hpcd->MspDeInitCallback = HAL_PCD_MspDeInit; /* Legacy weak MspDeInit */
		266	}
		267
		268	/* DeInit the low level hardware */
		269	hpcd->MspDeInitCallback(hpcd);
		270	#else
		271	/* DeInit the low level hardware: CLOCK, NVIC.*/
		272	HAL_PCD_MspDeInit(hpcd);
		273	#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
		274
		275	hpcd->State = HAL_PCD_STATE_RESET;
		276
		277	return HAL_OK;
		278	}
		279
		280	/**
		281	* @brief Initializes the PCD MSP.
		282	* @param hpcd PCD handle
		283	* @retval None
		284	*/
		285	__weak void HAL_PCD_MspInit(PCD_HandleTypeDef *hpcd)
		286	{
		287	/* Prevent unused argument(s) compilation warning */
		288	UNUSED(hpcd);
		289
		290	/* NOTE : This function should not be modified, when the callback is needed,
		291	the HAL_PCD_MspInit could be implemented in the user file
		292	*/
		293	}
		294
		295	/**
		296	* @brief DeInitializes PCD MSP.
		297	* @param hpcd PCD handle
		298	* @retval None
		299	*/
		300	__weak void HAL_PCD_MspDeInit(PCD_HandleTypeDef *hpcd)
		301	{
		302	/* Prevent unused argument(s) compilation warning */
		303	UNUSED(hpcd);
		304
		305	/* NOTE : This function should not be modified, when the callback is needed,
		306	the HAL_PCD_MspDeInit could be implemented in the user file
		307	*/
		308	}
		309
		310	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		311	/**
		312	* @brief Register a User USB PCD Callback
		313	* To be used instead of the weak predefined callback
		314	* @param hpcd USB PCD handle
		315	* @param CallbackID ID of the callback to be registered
		316	* This parameter can be one of the following values:
		317	* @arg @ref HAL_PCD_SOF_CB_ID USB PCD SOF callback ID
		318	* @arg @ref HAL_PCD_SETUPSTAGE_CB_ID USB PCD Setup callback ID
		319	* @arg @ref HAL_PCD_RESET_CB_ID USB PCD Reset callback ID
		320	* @arg @ref HAL_PCD_SUSPEND_CB_ID USB PCD Suspend callback ID
		321	* @arg @ref HAL_PCD_RESUME_CB_ID USB PCD Resume callback ID
		322	* @arg @ref HAL_PCD_CONNECT_CB_ID USB PCD Connect callback ID
		323	* @arg @ref HAL_PCD_DISCONNECT_CB_ID OTG PCD Disconnect callback ID
		324	* @arg @ref HAL_PCD_MSPINIT_CB_ID MspDeInit callback ID
		325	* @arg @ref HAL_PCD_MSPDEINIT_CB_ID MspDeInit callback ID
		326	* @param pCallback pointer to the Callback function
		327	* @retval HAL status
		328	*/
		329	HAL_StatusTypeDef HAL_PCD_RegisterCallback(PCD_HandleTypeDef *hpcd,
		330	HAL_PCD_CallbackIDTypeDef CallbackID,
		331	pPCD_CallbackTypeDef pCallback)
		332	{
		333	HAL_StatusTypeDef status = HAL_OK;
		334
		335	if (pCallback == NULL)
		336	{
		337	/* Update the error code */
		338	hpcd->ErrorCode \|= HAL_PCD_ERROR_INVALID_CALLBACK;
		339	return HAL_ERROR;
		340	}
		341	/* Process locked */
		342	__HAL_LOCK(hpcd);
		343
		344	if (hpcd->State == HAL_PCD_STATE_READY)
		345	{
		346	switch (CallbackID)
		347	{
		348	case HAL_PCD_SOF_CB_ID :
		349	hpcd->SOFCallback = pCallback;
		350	break;
		351
		352	case HAL_PCD_SETUPSTAGE_CB_ID :
		353	hpcd->SetupStageCallback = pCallback;
		354	break;
		355
		356	case HAL_PCD_RESET_CB_ID :
		357	hpcd->ResetCallback = pCallback;
		358	break;
		359
		360	case HAL_PCD_SUSPEND_CB_ID :
		361	hpcd->SuspendCallback = pCallback;
		362	break;
		363
		364	case HAL_PCD_RESUME_CB_ID :
		365	hpcd->ResumeCallback = pCallback;
		366	break;
		367
		368	case HAL_PCD_CONNECT_CB_ID :
		369	hpcd->ConnectCallback = pCallback;
		370	break;
		371
		372	case HAL_PCD_DISCONNECT_CB_ID :
		373	hpcd->DisconnectCallback = pCallback;
		374	break;
		375
		376	case HAL_PCD_MSPINIT_CB_ID :
		377	hpcd->MspInitCallback = pCallback;
		378	break;
		379
		380	case HAL_PCD_MSPDEINIT_CB_ID :
		381	hpcd->MspDeInitCallback = pCallback;
		382	break;
		383
		384	default :
		385	/* Update the error code */
		386	hpcd->ErrorCode \|= HAL_PCD_ERROR_INVALID_CALLBACK;
		387	/* Return error status */
		388	status = HAL_ERROR;
		389	break;
		390	}
		391	}
		392	else if (hpcd->State == HAL_PCD_STATE_RESET)
		393	{
		394	switch (CallbackID)
		395	{
		396	case HAL_PCD_MSPINIT_CB_ID :
		397	hpcd->MspInitCallback = pCallback;
		398	break;
		399
		400	case HAL_PCD_MSPDEINIT_CB_ID :
		401	hpcd->MspDeInitCallback = pCallback;
		402	break;
		403
		404	default :
		405	/* Update the error code */
		406	hpcd->ErrorCode \|= HAL_PCD_ERROR_INVALID_CALLBACK;
		407	/* Return error status */
		408	status = HAL_ERROR;
		409	break;
		410	}
		411	}
		412	else
		413	{
		414	/* Update the error code */
		415	hpcd->ErrorCode \|= HAL_PCD_ERROR_INVALID_CALLBACK;
		416	/* Return error status */
		417	status = HAL_ERROR;
		418	}
		419
		420	/* Release Lock */
		421	__HAL_UNLOCK(hpcd);
		422	return status;
		423	}
		424
		425	/**
		426	* @brief Unregister an USB PCD Callback
		427	* USB PCD callabck is redirected to the weak predefined callback
		428	* @param hpcd USB PCD handle
		429	* @param CallbackID ID of the callback to be unregistered
		430	* This parameter can be one of the following values:
		431	* @arg @ref HAL_PCD_SOF_CB_ID USB PCD SOF callback ID
		432	* @arg @ref HAL_PCD_SETUPSTAGE_CB_ID USB PCD Setup callback ID
		433	* @arg @ref HAL_PCD_RESET_CB_ID USB PCD Reset callback ID
		434	* @arg @ref HAL_PCD_SUSPEND_CB_ID USB PCD Suspend callback ID
		435	* @arg @ref HAL_PCD_RESUME_CB_ID USB PCD Resume callback ID
		436	* @arg @ref HAL_PCD_CONNECT_CB_ID USB PCD Connect callback ID
		437	* @arg @ref HAL_PCD_DISCONNECT_CB_ID OTG PCD Disconnect callback ID
		438	* @arg @ref HAL_PCD_MSPINIT_CB_ID MspDeInit callback ID
		439	* @arg @ref HAL_PCD_MSPDEINIT_CB_ID MspDeInit callback ID
		440	* @retval HAL status
		441	*/
		442	HAL_StatusTypeDef HAL_PCD_UnRegisterCallback(PCD_HandleTypeDef *hpcd, HAL_PCD_CallbackIDTypeDef CallbackID)
		443	{
		444	HAL_StatusTypeDef status = HAL_OK;
		445
		446	/* Process locked */
		447	__HAL_LOCK(hpcd);
		448
		449	/* Setup Legacy weak Callbacks */
		450	if (hpcd->State == HAL_PCD_STATE_READY)
		451	{
		452	switch (CallbackID)
		453	{
		454	case HAL_PCD_SOF_CB_ID :
		455	hpcd->SOFCallback = HAL_PCD_SOFCallback;
		456	break;
		457
		458	case HAL_PCD_SETUPSTAGE_CB_ID :
		459	hpcd->SetupStageCallback = HAL_PCD_SetupStageCallback;
		460	break;
		461
		462	case HAL_PCD_RESET_CB_ID :
		463	hpcd->ResetCallback = HAL_PCD_ResetCallback;
		464	break;
		465
		466	case HAL_PCD_SUSPEND_CB_ID :
		467	hpcd->SuspendCallback = HAL_PCD_SuspendCallback;
		468	break;
		469
		470	case HAL_PCD_RESUME_CB_ID :
		471	hpcd->ResumeCallback = HAL_PCD_ResumeCallback;
		472	break;
		473
		474	case HAL_PCD_CONNECT_CB_ID :
		475	hpcd->ConnectCallback = HAL_PCD_ConnectCallback;
		476	break;
		477
		478	case HAL_PCD_DISCONNECT_CB_ID :
		479	hpcd->DisconnectCallback = HAL_PCD_DisconnectCallback;
		480	break;
		481
		482	case HAL_PCD_MSPINIT_CB_ID :
		483	hpcd->MspInitCallback = HAL_PCD_MspInit;
		484	break;
		485
		486	case HAL_PCD_MSPDEINIT_CB_ID :
		487	hpcd->MspDeInitCallback = HAL_PCD_MspDeInit;
		488	break;
		489
		490	default :
		491	/* Update the error code */
		492	hpcd->ErrorCode \|= HAL_PCD_ERROR_INVALID_CALLBACK;
		493
		494	/* Return error status */
		495	status = HAL_ERROR;
		496	break;
		497	}
		498	}
		499	else if (hpcd->State == HAL_PCD_STATE_RESET)
		500	{
		501	switch (CallbackID)
		502	{
		503	case HAL_PCD_MSPINIT_CB_ID :
		504	hpcd->MspInitCallback = HAL_PCD_MspInit;
		505	break;
		506
		507	case HAL_PCD_MSPDEINIT_CB_ID :
		508	hpcd->MspDeInitCallback = HAL_PCD_MspDeInit;
		509	break;
		510
		511	default :
		512	/* Update the error code */
		513	hpcd->ErrorCode \|= HAL_PCD_ERROR_INVALID_CALLBACK;
		514
		515	/* Return error status */
		516	status = HAL_ERROR;
		517	break;
		518	}
		519	}
		520	else
		521	{
		522	/* Update the error code */
		523	hpcd->ErrorCode \|= HAL_PCD_ERROR_INVALID_CALLBACK;
		524
		525	/* Return error status */
		526	status = HAL_ERROR;
		527	}
		528
		529	/* Release Lock */
		530	__HAL_UNLOCK(hpcd);
		531	return status;
		532	}
		533
		534	/**
		535	* @brief Register USB PCD Data OUT Stage Callback
		536	* To be used instead of the weak HAL_PCD_DataOutStageCallback() predefined callback
		537	* @param hpcd PCD handle
		538	* @param pCallback pointer to the USB PCD Data OUT Stage Callback function
		539	* @retval HAL status
		540	*/
		541	HAL_StatusTypeDef HAL_PCD_RegisterDataOutStageCallback(PCD_HandleTypeDef *hpcd,
		542	pPCD_DataOutStageCallbackTypeDef pCallback)
		543	{
		544	HAL_StatusTypeDef status = HAL_OK;
		545
		546	if (pCallback == NULL)
		547	{
		548	/* Update the error code */
		549	hpcd->ErrorCode \|= HAL_PCD_ERROR_INVALID_CALLBACK;
		550
		551	return HAL_ERROR;
		552	}
		553
		554	/* Process locked */
		555	__HAL_LOCK(hpcd);
		556
		557	if (hpcd->State == HAL_PCD_STATE_READY)
		558	{
		559	hpcd->DataOutStageCallback = pCallback;
		560	}
		561	else
		562	{
		563	/* Update the error code */
		564	hpcd->ErrorCode \|= HAL_PCD_ERROR_INVALID_CALLBACK;
		565
		566	/* Return error status */
		567	status = HAL_ERROR;
		568	}
		569
		570	/* Release Lock */
		571	__HAL_UNLOCK(hpcd);
		572
		573	return status;
		574	}
		575
		576	/**
		577	* @brief Unregister the USB PCD Data OUT Stage Callback
		578	* USB PCD Data OUT Stage Callback is redirected to the weak HAL_PCD_DataOutStageCallback() predefined callback
		579	* @param hpcd PCD handle
		580	* @retval HAL status
		581	*/
		582	HAL_StatusTypeDef HAL_PCD_UnRegisterDataOutStageCallback(PCD_HandleTypeDef *hpcd)
		583	{
		584	HAL_StatusTypeDef status = HAL_OK;
		585
		586	/* Process locked */
		587	__HAL_LOCK(hpcd);
		588
		589	if (hpcd->State == HAL_PCD_STATE_READY)
		590	{
		591	hpcd->DataOutStageCallback = HAL_PCD_DataOutStageCallback; /* Legacy weak DataOutStageCallback */
		592	}
		593	else
		594	{
		595	/* Update the error code */
		596	hpcd->ErrorCode \|= HAL_PCD_ERROR_INVALID_CALLBACK;
		597
		598	/* Return error status */
		599	status = HAL_ERROR;
		600	}
		601
		602	/* Release Lock */
		603	__HAL_UNLOCK(hpcd);
		604
		605	return status;
		606	}
		607
		608	/**
		609	* @brief Register USB PCD Data IN Stage Callback
		610	* To be used instead of the weak HAL_PCD_DataInStageCallback() predefined callback
		611	* @param hpcd PCD handle
		612	* @param pCallback pointer to the USB PCD Data IN Stage Callback function
		613	* @retval HAL status
		614	*/
		615	HAL_StatusTypeDef HAL_PCD_RegisterDataInStageCallback(PCD_HandleTypeDef *hpcd,
		616	pPCD_DataInStageCallbackTypeDef pCallback)
		617	{
		618	HAL_StatusTypeDef status = HAL_OK;
		619
		620	if (pCallback == NULL)
		621	{
		622	/* Update the error code */
		623	hpcd->ErrorCode \|= HAL_PCD_ERROR_INVALID_CALLBACK;
		624
		625	return HAL_ERROR;
		626	}
		627
		628	/* Process locked */
		629	__HAL_LOCK(hpcd);
		630
		631	if (hpcd->State == HAL_PCD_STATE_READY)
		632	{
		633	hpcd->DataInStageCallback = pCallback;
		634	}
		635	else
		636	{
		637	/* Update the error code */
		638	hpcd->ErrorCode \|= HAL_PCD_ERROR_INVALID_CALLBACK;
		639
		640	/* Return error status */
		641	status = HAL_ERROR;
		642	}
		643
		644	/* Release Lock */
		645	__HAL_UNLOCK(hpcd);
		646
		647	return status;
		648	}
		649
		650	/**
		651	* @brief Unregister the USB PCD Data IN Stage Callback
		652	* USB PCD Data OUT Stage Callback is redirected to the weak HAL_PCD_DataInStageCallback() predefined callback
		653	* @param hpcd PCD handle
		654	* @retval HAL status
		655	*/
		656	HAL_StatusTypeDef HAL_PCD_UnRegisterDataInStageCallback(PCD_HandleTypeDef *hpcd)
		657	{
		658	HAL_StatusTypeDef status = HAL_OK;
		659
		660	/* Process locked */
		661	__HAL_LOCK(hpcd);
		662
		663	if (hpcd->State == HAL_PCD_STATE_READY)
		664	{
		665	hpcd->DataInStageCallback = HAL_PCD_DataInStageCallback; /* Legacy weak DataInStageCallback */
		666	}
		667	else
		668	{
		669	/* Update the error code */
		670	hpcd->ErrorCode \|= HAL_PCD_ERROR_INVALID_CALLBACK;
		671
		672	/* Return error status */
		673	status = HAL_ERROR;
		674	}
		675
		676	/* Release Lock */
		677	__HAL_UNLOCK(hpcd);
		678
		679	return status;
		680	}
		681
		682	/**
		683	* @brief Register USB PCD Iso OUT incomplete Callback
		684	* To be used instead of the weak HAL_PCD_ISOOUTIncompleteCallback() predefined callback
		685	* @param hpcd PCD handle
		686	* @param pCallback pointer to the USB PCD Iso OUT incomplete Callback function
		687	* @retval HAL status
		688	*/
		689	HAL_StatusTypeDef HAL_PCD_RegisterIsoOutIncpltCallback(PCD_HandleTypeDef *hpcd,
		690	pPCD_IsoOutIncpltCallbackTypeDef pCallback)
		691	{
		692	HAL_StatusTypeDef status = HAL_OK;
		693
		694	if (pCallback == NULL)
		695	{
		696	/* Update the error code */
		697	hpcd->ErrorCode \|= HAL_PCD_ERROR_INVALID_CALLBACK;
		698
		699	return HAL_ERROR;
		700	}
		701
		702	/* Process locked */
		703	__HAL_LOCK(hpcd);
		704
		705	if (hpcd->State == HAL_PCD_STATE_READY)
		706	{
		707	hpcd->ISOOUTIncompleteCallback = pCallback;
		708	}
		709	else
		710	{
		711	/* Update the error code */
		712	hpcd->ErrorCode \|= HAL_PCD_ERROR_INVALID_CALLBACK;
		713
		714	/* Return error status */
		715	status = HAL_ERROR;
		716	}
		717
		718	/* Release Lock */
		719	__HAL_UNLOCK(hpcd);
		720
		721	return status;
		722	}
		723
		724	/**
		725	* @brief Unregister the USB PCD Iso OUT incomplete Callback
		726	* USB PCD Iso OUT incomplete Callback is redirected
		727	* to the weak HAL_PCD_ISOOUTIncompleteCallback() predefined callback
		728	* @param hpcd PCD handle
		729	* @retval HAL status
		730	*/
		731	HAL_StatusTypeDef HAL_PCD_UnRegisterIsoOutIncpltCallback(PCD_HandleTypeDef *hpcd)
		732	{
		733	HAL_StatusTypeDef status = HAL_OK;
		734
		735	/* Process locked */
		736	__HAL_LOCK(hpcd);
		737
		738	if (hpcd->State == HAL_PCD_STATE_READY)
		739	{
		740	hpcd->ISOOUTIncompleteCallback = HAL_PCD_ISOOUTIncompleteCallback; /* Legacy weak ISOOUTIncompleteCallback */
		741	}
		742	else
		743	{
		744	/* Update the error code */
		745	hpcd->ErrorCode \|= HAL_PCD_ERROR_INVALID_CALLBACK;
		746
		747	/* Return error status */
		748	status = HAL_ERROR;
		749	}
		750
		751	/* Release Lock */
		752	__HAL_UNLOCK(hpcd);
		753
		754	return status;
		755	}
		756
		757	/**
		758	* @brief Register USB PCD Iso IN incomplete Callback
		759	* To be used instead of the weak HAL_PCD_ISOINIncompleteCallback() predefined callback
		760	* @param hpcd PCD handle
		761	* @param pCallback pointer to the USB PCD Iso IN incomplete Callback function
		762	* @retval HAL status
		763	*/
		764	HAL_StatusTypeDef HAL_PCD_RegisterIsoInIncpltCallback(PCD_HandleTypeDef *hpcd,
		765	pPCD_IsoInIncpltCallbackTypeDef pCallback)
		766	{
		767	HAL_StatusTypeDef status = HAL_OK;
		768
		769	if (pCallback == NULL)
		770	{
		771	/* Update the error code */
		772	hpcd->ErrorCode \|= HAL_PCD_ERROR_INVALID_CALLBACK;
		773
		774	return HAL_ERROR;
		775	}
		776
		777	/* Process locked */
		778	__HAL_LOCK(hpcd);
		779
		780	if (hpcd->State == HAL_PCD_STATE_READY)
		781	{
		782	hpcd->ISOINIncompleteCallback = pCallback;
		783	}
		784	else
		785	{
		786	/* Update the error code */
		787	hpcd->ErrorCode \|= HAL_PCD_ERROR_INVALID_CALLBACK;
		788
		789	/* Return error status */
		790	status = HAL_ERROR;
		791	}
		792
		793	/* Release Lock */
		794	__HAL_UNLOCK(hpcd);
		795
		796	return status;
		797	}
		798
		799	/**
		800	* @brief Unregister the USB PCD Iso IN incomplete Callback
		801	* USB PCD Iso IN incomplete Callback is redirected
		802	* to the weak HAL_PCD_ISOINIncompleteCallback() predefined callback
		803	* @param hpcd PCD handle
		804	* @retval HAL status
		805	*/
		806	HAL_StatusTypeDef HAL_PCD_UnRegisterIsoInIncpltCallback(PCD_HandleTypeDef *hpcd)
		807	{
		808	HAL_StatusTypeDef status = HAL_OK;
		809
		810	/* Process locked */
		811	__HAL_LOCK(hpcd);
		812
		813	if (hpcd->State == HAL_PCD_STATE_READY)
		814	{
		815	hpcd->ISOINIncompleteCallback = HAL_PCD_ISOINIncompleteCallback; /* Legacy weak ISOINIncompleteCallback */
		816	}
		817	else
		818	{
		819	/* Update the error code */
		820	hpcd->ErrorCode \|= HAL_PCD_ERROR_INVALID_CALLBACK;
		821
		822	/* Return error status */
		823	status = HAL_ERROR;
		824	}
		825
		826	/* Release Lock */
		827	__HAL_UNLOCK(hpcd);
		828
		829	return status;
		830	}
		831
		832	#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
		833
		834	/**
		835	* @}
		836	*/
		837
		838	/** @defgroup PCD_Exported_Functions_Group2 Input and Output operation functions
		839	* @brief Data transfers functions
		840	*
		841	@verbatim
		842	===============================================================================
		843	##### IO operation functions #####
		844	===============================================================================
		845	[..]
		846	This subsection provides a set of functions allowing to manage the PCD data
		847	transfers.
		848
		849	@endverbatim
		850	* @{
		851	*/
		852
		853	/**
		854	* @brief Start the USB device
		855	* @param hpcd PCD handle
		856	* @retval HAL status
		857	*/
		858	HAL_StatusTypeDef HAL_PCD_Start(PCD_HandleTypeDef *hpcd)
		859	{
		860	__HAL_LOCK(hpcd);
		861	__HAL_PCD_ENABLE(hpcd);
		862
		863	#if defined (USB)
		864	HAL_PCDEx_SetConnectionState(hpcd, 1U);
		865	#endif /* defined (USB) */
		866
		867	(void)USB_DevConnect(hpcd->Instance);
		868	__HAL_UNLOCK(hpcd);
		869
		870	return HAL_OK;
		871	}
		872
		873	/**
		874	* @brief Stop the USB device.
		875	* @param hpcd PCD handle
		876	* @retval HAL status
		877	*/
		878	HAL_StatusTypeDef HAL_PCD_Stop(PCD_HandleTypeDef *hpcd)
		879	{
		880	__HAL_LOCK(hpcd);
		881	__HAL_PCD_DISABLE(hpcd);
		882
		883	#if defined (USB)
		884	HAL_PCDEx_SetConnectionState(hpcd, 0U);
		885	#endif /* defined (USB) */
		886
		887	(void)USB_DevDisconnect(hpcd->Instance);
		888
		889	#if defined (USB_OTG_FS)
		890	(void)USB_FlushTxFifo(hpcd->Instance, 0x10U);
		891	#endif /* defined (USB_OTG_FS) */
		892
		893	__HAL_UNLOCK(hpcd);
		894
		895	return HAL_OK;
		896	}
		897
		898	#if defined (USB_OTG_FS)
		899	/**
		900	* @brief Handles PCD interrupt request.
		901	* @param hpcd PCD handle
		902	* @retval HAL status
		903	*/
		904	void HAL_PCD_IRQHandler(PCD_HandleTypeDef *hpcd)
		905	{
		906	USB_OTG_GlobalTypeDef *USBx = hpcd->Instance;
		907	uint32_t USBx_BASE = (uint32_t)USBx;
		908	USB_OTG_EPTypeDef *ep;
		909	uint32_t i;
		910	uint32_t ep_intr;
		911	uint32_t epint;
		912	uint32_t epnum;
		913	uint32_t fifoemptymsk;
		914	uint32_t temp;
		915
		916	/* ensure that we are in device mode */
		917	if (USB_GetMode(hpcd->Instance) == USB_OTG_MODE_DEVICE)
		918	{
		919	/* avoid spurious interrupt */
		920	if (__HAL_PCD_IS_INVALID_INTERRUPT(hpcd))
		921	{
		922	return;
		923	}
		924
		925	if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_MMIS))
		926	{
		927	/* incorrect mode, acknowledge the interrupt */
		928	__HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_MMIS);
		929	}
		930
		931	/* Handle RxQLevel Interrupt */
		932	if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_RXFLVL))
		933	{
		934	USB_MASK_INTERRUPT(hpcd->Instance, USB_OTG_GINTSTS_RXFLVL);
		935
		936	temp = USBx->GRXSTSP;
		937
		938	ep = &hpcd->OUT_ep[temp & USB_OTG_GRXSTSP_EPNUM];
		939
		940	if (((temp & USB_OTG_GRXSTSP_PKTSTS) >> 17) == STS_DATA_UPDT)
		941	{
		942	if ((temp & USB_OTG_GRXSTSP_BCNT) != 0U)
		943	{
		944	(void)USB_ReadPacket(USBx, ep->xfer_buff,
		945	(uint16_t)((temp & USB_OTG_GRXSTSP_BCNT) >> 4));
		946
		947	ep->xfer_buff += (temp & USB_OTG_GRXSTSP_BCNT) >> 4;
		948	ep->xfer_count += (temp & USB_OTG_GRXSTSP_BCNT) >> 4;
		949	}
		950	}
		951	else if (((temp & USB_OTG_GRXSTSP_PKTSTS) >> 17) == STS_SETUP_UPDT)
		952	{
		953	(void)USB_ReadPacket(USBx, (uint8_t *)hpcd->Setup, 8U);
		954	ep->xfer_count += (temp & USB_OTG_GRXSTSP_BCNT) >> 4;
		955	}
		956	else
		957	{
		958	/* ... */
		959	}
		960	USB_UNMASK_INTERRUPT(hpcd->Instance, USB_OTG_GINTSTS_RXFLVL);
		961	}
		962
		963	if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_OEPINT))
		964	{
		965	epnum = 0U;
		966
		967	/* Read in the device interrupt bits */
		968	ep_intr = USB_ReadDevAllOutEpInterrupt(hpcd->Instance);
		969
		970	while (ep_intr != 0U)
		971	{
		972	if ((ep_intr & 0x1U) != 0U)
		973	{
		974	epint = USB_ReadDevOutEPInterrupt(hpcd->Instance, (uint8_t)epnum);
		975
		976	if ((epint & USB_OTG_DOEPINT_XFRC) == USB_OTG_DOEPINT_XFRC)
		977	{
		978	CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_XFRC);
		979	(void)PCD_EP_OutXfrComplete_int(hpcd, epnum);
		980	}
		981
		982	if ((epint & USB_OTG_DOEPINT_STUP) == USB_OTG_DOEPINT_STUP)
		983	{
		984	CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_STUP);
		985	/* Class B setup phase done for previous decoded setup */
		986	(void)PCD_EP_OutSetupPacket_int(hpcd, epnum);
		987	}
		988
		989	if ((epint & USB_OTG_DOEPINT_OTEPDIS) == USB_OTG_DOEPINT_OTEPDIS)
		990	{
		991	CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_OTEPDIS);
		992	}
		993
		994	/* Clear Status Phase Received interrupt */
		995	if ((epint & USB_OTG_DOEPINT_OTEPSPR) == USB_OTG_DOEPINT_OTEPSPR)
		996	{
		997	CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_OTEPSPR);
		998	}
		999
		1000	/* Clear OUT NAK interrupt */
		1001	if ((epint & USB_OTG_DOEPINT_NAK) == USB_OTG_DOEPINT_NAK)
		1002	{
		1003	CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_NAK);
		1004	}
		1005	}
		1006	epnum++;
		1007	ep_intr >>= 1U;
		1008	}
		1009	}
		1010
		1011	if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_IEPINT))
		1012	{
		1013	/* Read in the device interrupt bits */
		1014	ep_intr = USB_ReadDevAllInEpInterrupt(hpcd->Instance);
		1015
		1016	epnum = 0U;
		1017
		1018	while (ep_intr != 0U)
		1019	{
		1020	if ((ep_intr & 0x1U) != 0U) /* In ITR */
		1021	{
		1022	epint = USB_ReadDevInEPInterrupt(hpcd->Instance, (uint8_t)epnum);
		1023
		1024	if ((epint & USB_OTG_DIEPINT_XFRC) == USB_OTG_DIEPINT_XFRC)
		1025	{
		1026	fifoemptymsk = (uint32_t)(0x1UL << (epnum & EP_ADDR_MSK));
		1027	USBx_DEVICE->DIEPEMPMSK &= ~fifoemptymsk;
		1028
		1029	CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_XFRC);
		1030
		1031	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		1032	hpcd->DataInStageCallback(hpcd, (uint8_t)epnum);
		1033	#else
		1034	HAL_PCD_DataInStageCallback(hpcd, (uint8_t)epnum);
		1035	#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
		1036	}
		1037	if ((epint & USB_OTG_DIEPINT_TOC) == USB_OTG_DIEPINT_TOC)
		1038	{
		1039	CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_TOC);
		1040	}
		1041	if ((epint & USB_OTG_DIEPINT_ITTXFE) == USB_OTG_DIEPINT_ITTXFE)
		1042	{
		1043	CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_ITTXFE);
		1044	}
		1045	if ((epint & USB_OTG_DIEPINT_INEPNE) == USB_OTG_DIEPINT_INEPNE)
		1046	{
		1047	CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_INEPNE);
		1048	}
		1049	if ((epint & USB_OTG_DIEPINT_EPDISD) == USB_OTG_DIEPINT_EPDISD)
		1050	{
		1051	CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_EPDISD);
		1052	}
		1053	if ((epint & USB_OTG_DIEPINT_TXFE) == USB_OTG_DIEPINT_TXFE)
		1054	{
		1055	(void)PCD_WriteEmptyTxFifo(hpcd, epnum);
		1056	}
		1057	}
		1058	epnum++;
		1059	ep_intr >>= 1U;
		1060	}
		1061	}
		1062
		1063	/* Handle Resume Interrupt */
		1064	if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_WKUINT))
		1065	{
		1066	/* Clear the Remote Wake-up Signaling */
		1067	USBx_DEVICE->DCTL &= ~USB_OTG_DCTL_RWUSIG;
		1068
		1069	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		1070	hpcd->ResumeCallback(hpcd);
		1071	#else
		1072	HAL_PCD_ResumeCallback(hpcd);
		1073	#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
		1074
		1075	__HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_WKUINT);
		1076	}
		1077
		1078	/* Handle Suspend Interrupt */
		1079	if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_USBSUSP))
		1080	{
		1081	if ((USBx_DEVICE->DSTS & USB_OTG_DSTS_SUSPSTS) == USB_OTG_DSTS_SUSPSTS)
		1082	{
		1083	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		1084	hpcd->SuspendCallback(hpcd);
		1085	#else
		1086	HAL_PCD_SuspendCallback(hpcd);
		1087	#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
		1088	}
		1089	__HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_USBSUSP);
		1090	}
		1091	/* Handle Reset Interrupt */
		1092	if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_USBRST))
		1093	{
		1094	USBx_DEVICE->DCTL &= ~USB_OTG_DCTL_RWUSIG;
		1095	(void)USB_FlushTxFifo(hpcd->Instance, 0x10U);
		1096
		1097	for (i = 0U; i < hpcd->Init.dev_endpoints; i++)
		1098	{
		1099	USBx_INEP(i)->DIEPINT = 0xFB7FU;
		1100	USBx_INEP(i)->DIEPCTL &= ~USB_OTG_DIEPCTL_STALL;
		1101	USBx_INEP(i)->DIEPCTL \|= USB_OTG_DIEPCTL_SNAK;
		1102	USBx_OUTEP(i)->DOEPINT = 0xFB7FU;
		1103	USBx_OUTEP(i)->DOEPCTL &= ~USB_OTG_DOEPCTL_STALL;
		1104	USBx_OUTEP(i)->DOEPCTL \|= USB_OTG_DOEPCTL_SNAK;
		1105	}
		1106	USBx_DEVICE->DAINTMSK \|= 0x10001U;
		1107
		1108	if (hpcd->Init.use_dedicated_ep1 != 0U)
		1109	{
		1110	USBx_DEVICE->DOUTEP1MSK \|= USB_OTG_DOEPMSK_STUPM \|
		1111	USB_OTG_DOEPMSK_XFRCM \|
		1112	USB_OTG_DOEPMSK_EPDM;
		1113
		1114	USBx_DEVICE->DINEP1MSK \|= USB_OTG_DIEPMSK_TOM \|
		1115	USB_OTG_DIEPMSK_XFRCM \|
		1116	USB_OTG_DIEPMSK_EPDM;
		1117	}
		1118	else
		1119	{
		1120	USBx_DEVICE->DOEPMSK \|= USB_OTG_DOEPMSK_STUPM \|
		1121	USB_OTG_DOEPMSK_XFRCM \|
		1122	USB_OTG_DOEPMSK_EPDM \|
		1123	USB_OTG_DOEPMSK_OTEPSPRM \|
		1124	USB_OTG_DOEPMSK_NAKM;
		1125
		1126	USBx_DEVICE->DIEPMSK \|= USB_OTG_DIEPMSK_TOM \|
		1127	USB_OTG_DIEPMSK_XFRCM \|
		1128	USB_OTG_DIEPMSK_EPDM;
		1129	}
		1130
		1131	/* Set Default Address to 0 */
		1132	USBx_DEVICE->DCFG &= ~USB_OTG_DCFG_DAD;
		1133
		1134	/* setup EP0 to receive SETUP packets */
		1135	(void)USB_EP0_OutStart(hpcd->Instance, (uint8_t *)hpcd->Setup);
		1136
		1137	__HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_USBRST);
		1138	}
		1139
		1140	/* Handle Enumeration done Interrupt */
		1141	if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_ENUMDNE))
		1142	{
		1143	(void)USB_ActivateSetup(hpcd->Instance);
		1144	hpcd->Init.speed = USB_GetDevSpeed(hpcd->Instance);
		1145
		1146	/* Set USB Turnaround time */
		1147	(void)USB_SetTurnaroundTime(hpcd->Instance,
		1148	HAL_RCC_GetHCLKFreq(),
		1149	(uint8_t)hpcd->Init.speed);
		1150
		1151	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		1152	hpcd->ResetCallback(hpcd);
		1153	#else
		1154	HAL_PCD_ResetCallback(hpcd);
		1155	#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
		1156
		1157	__HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_ENUMDNE);
		1158	}
		1159
		1160	/* Handle SOF Interrupt */
		1161	if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_SOF))
		1162	{
		1163	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		1164	hpcd->SOFCallback(hpcd);
		1165	#else
		1166	HAL_PCD_SOFCallback(hpcd);
		1167	#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
		1168
		1169	__HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_SOF);
		1170	}
		1171
		1172	/* Handle Incomplete ISO IN Interrupt */
		1173	if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_IISOIXFR))
		1174	{
		1175	/* Keep application checking the corresponding Iso IN endpoint
		1176	causing the incomplete Interrupt */
		1177	epnum = 0U;
		1178
		1179	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		1180	hpcd->ISOINIncompleteCallback(hpcd, (uint8_t)epnum);
		1181	#else
		1182	HAL_PCD_ISOINIncompleteCallback(hpcd, (uint8_t)epnum);
		1183	#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
		1184
		1185	__HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_IISOIXFR);
		1186	}
		1187
		1188	/* Handle Incomplete ISO OUT Interrupt */
		1189	if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_PXFR_INCOMPISOOUT))
		1190	{
		1191	/* Keep application checking the corresponding Iso OUT endpoint
		1192	causing the incomplete Interrupt */
		1193	epnum = 0U;
		1194
		1195	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		1196	hpcd->ISOOUTIncompleteCallback(hpcd, (uint8_t)epnum);
		1197	#else
		1198	HAL_PCD_ISOOUTIncompleteCallback(hpcd, (uint8_t)epnum);
		1199	#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
		1200
		1201	__HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_PXFR_INCOMPISOOUT);
		1202	}
		1203
		1204	/* Handle Connection event Interrupt */
		1205	if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_SRQINT))
		1206	{
		1207	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		1208	hpcd->ConnectCallback(hpcd);
		1209	#else
		1210	HAL_PCD_ConnectCallback(hpcd);
		1211	#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
		1212
		1213	__HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_SRQINT);
		1214	}
		1215
		1216	/* Handle Disconnection event Interrupt */
		1217	if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_OTGINT))
		1218	{
		1219	temp = hpcd->Instance->GOTGINT;
		1220
		1221	if ((temp & USB_OTG_GOTGINT_SEDET) == USB_OTG_GOTGINT_SEDET)
		1222	{
		1223	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		1224	hpcd->DisconnectCallback(hpcd);
		1225	#else
		1226	HAL_PCD_DisconnectCallback(hpcd);
		1227	#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
		1228	}
		1229	hpcd->Instance->GOTGINT \|= temp;
		1230	}
		1231	}
		1232	}
		1233
		1234
		1235	/**
		1236	* @brief Handles PCD Wakeup interrupt request.
		1237	* @param hpcd PCD handle
		1238	* @retval HAL status
		1239	*/
		1240	void HAL_PCD_WKUP_IRQHandler(PCD_HandleTypeDef *hpcd)
		1241	{
		1242	/* Clear EXTI pending Bit */
		1243	__HAL_USB_OTG_FS_WAKEUP_EXTI_CLEAR_FLAG();
		1244	}
		1245	#endif /* defined (USB_OTG_FS) */
		1246
		1247	#if defined (USB)
		1248	/**
		1249	* @brief This function handles PCD interrupt request.
		1250	* @param hpcd PCD handle
		1251	* @retval HAL status
		1252	*/
		1253	void HAL_PCD_IRQHandler(PCD_HandleTypeDef *hpcd)
		1254	{
		1255	uint16_t store_ep[8];
		1256	uint8_t i;
		1257
		1258	if (__HAL_PCD_GET_FLAG(hpcd, USB_ISTR_CTR))
		1259	{
		1260	/* servicing of the endpoint correct transfer interrupt */
		1261	/* clear of the CTR flag into the sub */
		1262	(void)PCD_EP_ISR_Handler(hpcd);
		1263	}
		1264
		1265	if (__HAL_PCD_GET_FLAG(hpcd, USB_ISTR_RESET))
		1266	{
		1267	__HAL_PCD_CLEAR_FLAG(hpcd, USB_ISTR_RESET);
		1268
		1269	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		1270	hpcd->ResetCallback(hpcd);
		1271	#else
		1272	HAL_PCD_ResetCallback(hpcd);
		1273	#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
		1274
		1275	(void)HAL_PCD_SetAddress(hpcd, 0U);
		1276	}
		1277
		1278	if (__HAL_PCD_GET_FLAG(hpcd, USB_ISTR_PMAOVR))
		1279	{
		1280	__HAL_PCD_CLEAR_FLAG(hpcd, USB_ISTR_PMAOVR);
		1281	}
		1282
		1283	if (__HAL_PCD_GET_FLAG(hpcd, USB_ISTR_ERR))
		1284	{
		1285	__HAL_PCD_CLEAR_FLAG(hpcd, USB_ISTR_ERR);
		1286	}
		1287
		1288	if (__HAL_PCD_GET_FLAG(hpcd, USB_ISTR_WKUP))
		1289	{
		1290	hpcd->Instance->CNTR &= (uint16_t) ~(USB_CNTR_LP_MODE);
		1291	hpcd->Instance->CNTR &= (uint16_t) ~(USB_CNTR_FSUSP);
		1292
		1293	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		1294	hpcd->ResumeCallback(hpcd);
		1295	#else
		1296	HAL_PCD_ResumeCallback(hpcd);
		1297	#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
		1298
		1299	__HAL_PCD_CLEAR_FLAG(hpcd, USB_ISTR_WKUP);
		1300	}
		1301
		1302	if (__HAL_PCD_GET_FLAG(hpcd, USB_ISTR_SUSP))
		1303	{
		1304	/* WA: To Clear Wakeup flag if raised with suspend signal */
		1305
		1306	/* Store Endpoint register */
		1307	for (i = 0U; i < 8U; i++)
		1308	{
		1309	store_ep[i] = PCD_GET_ENDPOINT(hpcd->Instance, i);
		1310	}
		1311
		1312	/* FORCE RESET */
		1313	hpcd->Instance->CNTR \|= (uint16_t)(USB_CNTR_FRES);
		1314
		1315	/* CLEAR RESET */
		1316	hpcd->Instance->CNTR &= (uint16_t)(~USB_CNTR_FRES);
		1317
		1318	/* wait for reset flag in ISTR */
		1319	while ((hpcd->Instance->ISTR & USB_ISTR_RESET) == 0U)
		1320	{
		1321	}
		1322
		1323	/* Clear Reset Flag */
		1324	__HAL_PCD_CLEAR_FLAG(hpcd, USB_ISTR_RESET);
		1325
		1326	/* Restore Registre */
		1327	for (i = 0U; i < 8U; i++)
		1328	{
		1329	PCD_SET_ENDPOINT(hpcd->Instance, i, store_ep[i]);
		1330	}
		1331
		1332	/* Force low-power mode in the macrocell */
		1333	hpcd->Instance->CNTR \|= (uint16_t)USB_CNTR_FSUSP;
		1334
		1335	/* clear of the ISTR bit must be done after setting of CNTR_FSUSP */
		1336	__HAL_PCD_CLEAR_FLAG(hpcd, USB_ISTR_SUSP);
		1337
		1338	hpcd->Instance->CNTR \|= (uint16_t)USB_CNTR_LP_MODE;
		1339
		1340	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		1341	hpcd->SuspendCallback(hpcd);
		1342	#else
		1343	HAL_PCD_SuspendCallback(hpcd);
		1344	#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
		1345	}
		1346
		1347	if (__HAL_PCD_GET_FLAG(hpcd, USB_ISTR_SOF))
		1348	{
		1349	__HAL_PCD_CLEAR_FLAG(hpcd, USB_ISTR_SOF);
		1350
		1351	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		1352	hpcd->SOFCallback(hpcd);
		1353	#else
		1354	HAL_PCD_SOFCallback(hpcd);
		1355	#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
		1356	}
		1357
		1358	if (__HAL_PCD_GET_FLAG(hpcd, USB_ISTR_ESOF))
		1359	{
		1360	/* clear ESOF flag in ISTR */
		1361	__HAL_PCD_CLEAR_FLAG(hpcd, USB_ISTR_ESOF);
		1362	}
		1363	}
		1364
		1365
		1366	/**
		1367	* @brief Handles PCD Wakeup interrupt request.
		1368	* @param hpcd PCD handle
		1369	* @retval HAL status
		1370	*/
		1371	void HAL_PCD_WKUP_IRQHandler(PCD_HandleTypeDef *hpcd)
		1372	{
		1373	/* Clear EXTI pending Bit */
		1374	__HAL_USB_WAKEUP_EXTI_CLEAR_FLAG();
		1375	}
		1376	#endif /* defined (USB) */
		1377
		1378	/**
		1379	* @brief Data OUT stage callback.
		1380	* @param hpcd PCD handle
		1381	* @param epnum endpoint number
		1382	* @retval None
		1383	*/
		1384	__weak void HAL_PCD_DataOutStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
		1385	{
		1386	/* Prevent unused argument(s) compilation warning */
		1387	UNUSED(hpcd);
		1388	UNUSED(epnum);
		1389
		1390	/* NOTE : This function should not be modified, when the callback is needed,
		1391	the HAL_PCD_DataOutStageCallback could be implemented in the user file
		1392	*/
		1393	}
		1394
		1395	/**
		1396	* @brief Data IN stage callback
		1397	* @param hpcd PCD handle
		1398	* @param epnum endpoint number
		1399	* @retval None
		1400	*/
		1401	__weak void HAL_PCD_DataInStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
		1402	{
		1403	/* Prevent unused argument(s) compilation warning */
		1404	UNUSED(hpcd);
		1405	UNUSED(epnum);
		1406
		1407	/* NOTE : This function should not be modified, when the callback is needed,
		1408	the HAL_PCD_DataInStageCallback could be implemented in the user file
		1409	*/
		1410	}
		1411	/**
		1412	* @brief Setup stage callback
		1413	* @param hpcd PCD handle
		1414	* @retval None
		1415	*/
		1416	__weak void HAL_PCD_SetupStageCallback(PCD_HandleTypeDef *hpcd)
		1417	{
		1418	/* Prevent unused argument(s) compilation warning */
		1419	UNUSED(hpcd);
		1420
		1421	/* NOTE : This function should not be modified, when the callback is needed,
		1422	the HAL_PCD_SetupStageCallback could be implemented in the user file
		1423	*/
		1424	}
		1425
		1426	/**
		1427	* @brief USB Start Of Frame callback.
		1428	* @param hpcd PCD handle
		1429	* @retval None
		1430	*/
		1431	__weak void HAL_PCD_SOFCallback(PCD_HandleTypeDef *hpcd)
		1432	{
		1433	/* Prevent unused argument(s) compilation warning */
		1434	UNUSED(hpcd);
		1435
		1436	/* NOTE : This function should not be modified, when the callback is needed,
		1437	the HAL_PCD_SOFCallback could be implemented in the user file
		1438	*/
		1439	}
		1440
		1441	/**
		1442	* @brief USB Reset callback.
		1443	* @param hpcd PCD handle
		1444	* @retval None
		1445	*/
		1446	__weak void HAL_PCD_ResetCallback(PCD_HandleTypeDef *hpcd)
		1447	{
		1448	/* Prevent unused argument(s) compilation warning */
		1449	UNUSED(hpcd);
		1450
		1451	/* NOTE : This function should not be modified, when the callback is needed,
		1452	the HAL_PCD_ResetCallback could be implemented in the user file
		1453	*/
		1454	}
		1455
		1456	/**
		1457	* @brief Suspend event callback.
		1458	* @param hpcd PCD handle
		1459	* @retval None
		1460	*/
		1461	__weak void HAL_PCD_SuspendCallback(PCD_HandleTypeDef *hpcd)
		1462	{
		1463	/* Prevent unused argument(s) compilation warning */
		1464	UNUSED(hpcd);
		1465
		1466	/* NOTE : This function should not be modified, when the callback is needed,
		1467	the HAL_PCD_SuspendCallback could be implemented in the user file
		1468	*/
		1469	}
		1470
		1471	/**
		1472	* @brief Resume event callback.
		1473	* @param hpcd PCD handle
		1474	* @retval None
		1475	*/
		1476	__weak void HAL_PCD_ResumeCallback(PCD_HandleTypeDef *hpcd)
		1477	{
		1478	/* Prevent unused argument(s) compilation warning */
		1479	UNUSED(hpcd);
		1480
		1481	/* NOTE : This function should not be modified, when the callback is needed,
		1482	the HAL_PCD_ResumeCallback could be implemented in the user file
		1483	*/
		1484	}
		1485
		1486	/**
		1487	* @brief Incomplete ISO OUT callback.
		1488	* @param hpcd PCD handle
		1489	* @param epnum endpoint number
		1490	* @retval None
		1491	*/
		1492	__weak void HAL_PCD_ISOOUTIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
		1493	{
		1494	/* Prevent unused argument(s) compilation warning */
		1495	UNUSED(hpcd);
		1496	UNUSED(epnum);
		1497
		1498	/* NOTE : This function should not be modified, when the callback is needed,
		1499	the HAL_PCD_ISOOUTIncompleteCallback could be implemented in the user file
		1500	*/
		1501	}
		1502
		1503	/**
		1504	* @brief Incomplete ISO IN callback.
		1505	* @param hpcd PCD handle
		1506	* @param epnum endpoint number
		1507	* @retval None
		1508	*/
		1509	__weak void HAL_PCD_ISOINIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
		1510	{
		1511	/* Prevent unused argument(s) compilation warning */
		1512	UNUSED(hpcd);
		1513	UNUSED(epnum);
		1514
		1515	/* NOTE : This function should not be modified, when the callback is needed,
		1516	the HAL_PCD_ISOINIncompleteCallback could be implemented in the user file
		1517	*/
		1518	}
		1519
		1520	/**
		1521	* @brief Connection event callback.
		1522	* @param hpcd PCD handle
		1523	* @retval None
		1524	*/
		1525	__weak void HAL_PCD_ConnectCallback(PCD_HandleTypeDef *hpcd)
		1526	{
		1527	/* Prevent unused argument(s) compilation warning */
		1528	UNUSED(hpcd);
		1529
		1530	/* NOTE : This function should not be modified, when the callback is needed,
		1531	the HAL_PCD_ConnectCallback could be implemented in the user file
		1532	*/
		1533	}
		1534
		1535	/**
		1536	* @brief Disconnection event callback.
		1537	* @param hpcd PCD handle
		1538	* @retval None
		1539	*/
		1540	__weak void HAL_PCD_DisconnectCallback(PCD_HandleTypeDef *hpcd)
		1541	{
		1542	/* Prevent unused argument(s) compilation warning */
		1543	UNUSED(hpcd);
		1544
		1545	/* NOTE : This function should not be modified, when the callback is needed,
		1546	the HAL_PCD_DisconnectCallback could be implemented in the user file
		1547	*/
		1548	}
		1549
		1550	/**
		1551	* @}
		1552	*/
		1553
		1554	/** @defgroup PCD_Exported_Functions_Group3 Peripheral Control functions
		1555	* @brief management functions
		1556	*
		1557	@verbatim
		1558	===============================================================================
		1559	##### Peripheral Control functions #####
		1560	===============================================================================
		1561	[..]
		1562	This subsection provides a set of functions allowing to control the PCD data
		1563	transfers.
		1564
		1565	@endverbatim
		1566	* @{
		1567	*/
		1568
		1569	/**
		1570	* @brief Connect the USB device
		1571	* @param hpcd PCD handle
		1572	* @retval HAL status
		1573	*/
		1574	HAL_StatusTypeDef HAL_PCD_DevConnect(PCD_HandleTypeDef *hpcd)
		1575	{
		1576	__HAL_LOCK(hpcd);
		1577
		1578	#if defined (USB)
		1579	HAL_PCDEx_SetConnectionState(hpcd, 1U);
		1580	#endif /* defined (USB) */
		1581
		1582	(void)USB_DevConnect(hpcd->Instance);
		1583	__HAL_UNLOCK(hpcd);
		1584
		1585	return HAL_OK;
		1586	}
		1587
		1588	/**
		1589	* @brief Disconnect the USB device.
		1590	* @param hpcd PCD handle
		1591	* @retval HAL status
		1592	*/
		1593	HAL_StatusTypeDef HAL_PCD_DevDisconnect(PCD_HandleTypeDef *hpcd)
		1594	{
		1595	__HAL_LOCK(hpcd);
		1596
		1597	#if defined (USB)
		1598	HAL_PCDEx_SetConnectionState(hpcd, 0U);
		1599	#endif /* defined (USB) */
		1600
		1601	(void)USB_DevDisconnect(hpcd->Instance);
		1602	__HAL_UNLOCK(hpcd);
		1603
		1604	return HAL_OK;
		1605	}
		1606
		1607	/**
		1608	* @brief Set the USB Device address.
		1609	* @param hpcd PCD handle
		1610	* @param address new device address
		1611	* @retval HAL status
		1612	*/
		1613	HAL_StatusTypeDef HAL_PCD_SetAddress(PCD_HandleTypeDef *hpcd, uint8_t address)
		1614	{
		1615	__HAL_LOCK(hpcd);
		1616	hpcd->USB_Address = address;
		1617	(void)USB_SetDevAddress(hpcd->Instance, address);
		1618	__HAL_UNLOCK(hpcd);
		1619
		1620	return HAL_OK;
		1621	}
		1622	/**
		1623	* @brief Open and configure an endpoint.
		1624	* @param hpcd PCD handle
		1625	* @param ep_addr endpoint address
		1626	* @param ep_mps endpoint max packet size
		1627	* @param ep_type endpoint type
		1628	* @retval HAL status
		1629	*/
		1630	HAL_StatusTypeDef HAL_PCD_EP_Open(PCD_HandleTypeDef *hpcd, uint8_t ep_addr,
		1631	uint16_t ep_mps, uint8_t ep_type)
		1632	{
		1633	HAL_StatusTypeDef ret = HAL_OK;
		1634	PCD_EPTypeDef *ep;
		1635
		1636	if ((ep_addr & 0x80U) == 0x80U)
		1637	{
		1638	ep = &hpcd->IN_ep[ep_addr & EP_ADDR_MSK];
		1639	ep->is_in = 1U;
		1640	}
		1641	else
		1642	{
		1643	ep = &hpcd->OUT_ep[ep_addr & EP_ADDR_MSK];
		1644	ep->is_in = 0U;
		1645	}
		1646
		1647	ep->num = ep_addr & EP_ADDR_MSK;
		1648	ep->maxpacket = ep_mps;
		1649	ep->type = ep_type;
		1650
		1651	if (ep->is_in != 0U)
		1652	{
		1653	/* Assign a Tx FIFO */
		1654	ep->tx_fifo_num = ep->num;
		1655	}
		1656	/* Set initial data PID. */
		1657	if (ep_type == EP_TYPE_BULK)
		1658	{
		1659	ep->data_pid_start = 0U;
		1660	}
		1661
		1662	__HAL_LOCK(hpcd);
		1663	(void)USB_ActivateEndpoint(hpcd->Instance, ep);
		1664	__HAL_UNLOCK(hpcd);
		1665
		1666	return ret;
		1667	}
		1668
		1669	/**
		1670	* @brief Deactivate an endpoint.
		1671	* @param hpcd PCD handle
		1672	* @param ep_addr endpoint address
		1673	* @retval HAL status
		1674	*/
		1675	HAL_StatusTypeDef HAL_PCD_EP_Close(PCD_HandleTypeDef *hpcd, uint8_t ep_addr)
		1676	{
		1677	PCD_EPTypeDef *ep;
		1678
		1679	if ((ep_addr & 0x80U) == 0x80U)
		1680	{
		1681	ep = &hpcd->IN_ep[ep_addr & EP_ADDR_MSK];
		1682	ep->is_in = 1U;
		1683	}
		1684	else
		1685	{
		1686	ep = &hpcd->OUT_ep[ep_addr & EP_ADDR_MSK];
		1687	ep->is_in = 0U;
		1688	}
		1689	ep->num = ep_addr & EP_ADDR_MSK;
		1690
		1691	__HAL_LOCK(hpcd);
		1692	(void)USB_DeactivateEndpoint(hpcd->Instance, ep);
		1693	__HAL_UNLOCK(hpcd);
		1694	return HAL_OK;
		1695	}
		1696
		1697
		1698	/**
		1699	* @brief Receive an amount of data.
		1700	* @param hpcd PCD handle
		1701	* @param ep_addr endpoint address
		1702	* @param pBuf pointer to the reception buffer
		1703	* @param len amount of data to be received
		1704	* @retval HAL status
		1705	*/
		1706	HAL_StatusTypeDef HAL_PCD_EP_Receive(PCD_HandleTypeDef hpcd, uint8_t ep_addr, uint8_t pBuf, uint32_t len)
		1707	{
		1708	PCD_EPTypeDef *ep;
		1709
		1710	ep = &hpcd->OUT_ep[ep_addr & EP_ADDR_MSK];
		1711
		1712	/setup and start the Xfer /
		1713	ep->xfer_buff = pBuf;
		1714	ep->xfer_len = len;
		1715	ep->xfer_count = 0U;
		1716	ep->is_in = 0U;
		1717	ep->num = ep_addr & EP_ADDR_MSK;
		1718
		1719	if ((ep_addr & EP_ADDR_MSK) == 0U)
		1720	{
		1721	(void)USB_EP0StartXfer(hpcd->Instance, ep);
		1722	}
		1723	else
		1724	{
		1725	(void)USB_EPStartXfer(hpcd->Instance, ep);
		1726	}
		1727
		1728	return HAL_OK;
		1729	}
		1730
		1731	/**
		1732	* @brief Get Received Data Size
		1733	* @param hpcd PCD handle
		1734	* @param ep_addr endpoint address
		1735	* @retval Data Size
		1736	*/
		1737	uint32_t HAL_PCD_EP_GetRxCount(PCD_HandleTypeDef *hpcd, uint8_t ep_addr)
		1738	{
		1739	return hpcd->OUT_ep[ep_addr & EP_ADDR_MSK].xfer_count;
		1740	}
		1741	/**
		1742	* @brief Send an amount of data
		1743	* @param hpcd PCD handle
		1744	* @param ep_addr endpoint address
		1745	* @param pBuf pointer to the transmission buffer
		1746	* @param len amount of data to be sent
		1747	* @retval HAL status
		1748	*/
		1749	HAL_StatusTypeDef HAL_PCD_EP_Transmit(PCD_HandleTypeDef hpcd, uint8_t ep_addr, uint8_t pBuf, uint32_t len)
		1750	{
		1751	PCD_EPTypeDef *ep;
		1752
		1753	ep = &hpcd->IN_ep[ep_addr & EP_ADDR_MSK];
		1754
		1755	/setup and start the Xfer /
		1756	ep->xfer_buff = pBuf;
		1757	ep->xfer_len = len;
		1758	#if defined (USB)
		1759	ep->xfer_fill_db = 1U;
		1760	ep->xfer_len_db = len;
		1761	#endif /* defined (USB) */
		1762	ep->xfer_count = 0U;
		1763	ep->is_in = 1U;
		1764	ep->num = ep_addr & EP_ADDR_MSK;
		1765
		1766	if ((ep_addr & EP_ADDR_MSK) == 0U)
		1767	{
		1768	(void)USB_EP0StartXfer(hpcd->Instance, ep);
		1769	}
		1770	else
		1771	{
		1772	(void)USB_EPStartXfer(hpcd->Instance, ep);
		1773	}
		1774
		1775	return HAL_OK;
		1776	}
		1777
		1778	/**
		1779	* @brief Set a STALL condition over an endpoint
		1780	* @param hpcd PCD handle
		1781	* @param ep_addr endpoint address
		1782	* @retval HAL status
		1783	*/
		1784	HAL_StatusTypeDef HAL_PCD_EP_SetStall(PCD_HandleTypeDef *hpcd, uint8_t ep_addr)
		1785	{
		1786	PCD_EPTypeDef *ep;
		1787
		1788	if (((uint32_t)ep_addr & EP_ADDR_MSK) > hpcd->Init.dev_endpoints)
		1789	{
		1790	return HAL_ERROR;
		1791	}
		1792
		1793	if ((0x80U & ep_addr) == 0x80U)
		1794	{
		1795	ep = &hpcd->IN_ep[ep_addr & EP_ADDR_MSK];
		1796	ep->is_in = 1U;
		1797	}
		1798	else
		1799	{
		1800	ep = &hpcd->OUT_ep[ep_addr];
		1801	ep->is_in = 0U;
		1802	}
		1803
		1804	ep->is_stall = 1U;
		1805	ep->num = ep_addr & EP_ADDR_MSK;
		1806
		1807	__HAL_LOCK(hpcd);
		1808
		1809	(void)USB_EPSetStall(hpcd->Instance, ep);
		1810
		1811	if ((ep_addr & EP_ADDR_MSK) == 0U)
		1812	{
		1813	(void)USB_EP0_OutStart(hpcd->Instance, (uint8_t *)hpcd->Setup);
		1814	}
		1815
		1816	__HAL_UNLOCK(hpcd);
		1817
		1818	return HAL_OK;
		1819	}
		1820
		1821	/**
		1822	* @brief Clear a STALL condition over in an endpoint
		1823	* @param hpcd PCD handle
		1824	* @param ep_addr endpoint address
		1825	* @retval HAL status
		1826	*/
		1827	HAL_StatusTypeDef HAL_PCD_EP_ClrStall(PCD_HandleTypeDef *hpcd, uint8_t ep_addr)
		1828	{
		1829	PCD_EPTypeDef *ep;
		1830
		1831	if (((uint32_t)ep_addr & 0x0FU) > hpcd->Init.dev_endpoints)
		1832	{
		1833	return HAL_ERROR;
		1834	}
		1835
		1836	if ((0x80U & ep_addr) == 0x80U)
		1837	{
		1838	ep = &hpcd->IN_ep[ep_addr & EP_ADDR_MSK];
		1839	ep->is_in = 1U;
		1840	}
		1841	else
		1842	{
		1843	ep = &hpcd->OUT_ep[ep_addr & EP_ADDR_MSK];
		1844	ep->is_in = 0U;
		1845	}
		1846
		1847	ep->is_stall = 0U;
		1848	ep->num = ep_addr & EP_ADDR_MSK;
		1849
		1850	__HAL_LOCK(hpcd);
		1851	(void)USB_EPClearStall(hpcd->Instance, ep);
		1852	__HAL_UNLOCK(hpcd);
		1853
		1854	return HAL_OK;
		1855	}
		1856
		1857	/**
		1858	* @brief Flush an endpoint
		1859	* @param hpcd PCD handle
		1860	* @param ep_addr endpoint address
		1861	* @retval HAL status
		1862	*/
		1863	HAL_StatusTypeDef HAL_PCD_EP_Flush(PCD_HandleTypeDef *hpcd, uint8_t ep_addr)
		1864	{
		1865	__HAL_LOCK(hpcd);
		1866
		1867	if ((ep_addr & 0x80U) == 0x80U)
		1868	{
		1869	(void)USB_FlushTxFifo(hpcd->Instance, (uint32_t)ep_addr & EP_ADDR_MSK);
		1870	}
		1871	else
		1872	{
		1873	(void)USB_FlushRxFifo(hpcd->Instance);
		1874	}
		1875
		1876	__HAL_UNLOCK(hpcd);
		1877
		1878	return HAL_OK;
		1879	}
		1880
		1881	/**
		1882	* @brief Activate remote wakeup signalling
		1883	* @param hpcd PCD handle
		1884	* @retval HAL status
		1885	*/
		1886	HAL_StatusTypeDef HAL_PCD_ActivateRemoteWakeup(PCD_HandleTypeDef *hpcd)
		1887	{
		1888	return (USB_ActivateRemoteWakeup(hpcd->Instance));
		1889	}
		1890
		1891	/**
		1892	* @brief De-activate remote wakeup signalling.
		1893	* @param hpcd PCD handle
		1894	* @retval HAL status
		1895	*/
		1896	HAL_StatusTypeDef HAL_PCD_DeActivateRemoteWakeup(PCD_HandleTypeDef *hpcd)
		1897	{
		1898	return (USB_DeActivateRemoteWakeup(hpcd->Instance));
		1899	}
		1900
		1901	/**
		1902	* @}
		1903	*/
		1904
		1905	/** @defgroup PCD_Exported_Functions_Group4 Peripheral State functions
		1906	* @brief Peripheral State functions
		1907	*
		1908	@verbatim
		1909	===============================================================================
		1910	##### Peripheral State functions #####
		1911	===============================================================================
		1912	[..]
		1913	This subsection permits to get in run-time the status of the peripheral
		1914	and the data flow.
		1915
		1916	@endverbatim
		1917	* @{
		1918	*/
		1919
		1920	/**
		1921	* @brief Return the PCD handle state.
		1922	* @param hpcd PCD handle
		1923	* @retval HAL state
		1924	*/
		1925	PCD_StateTypeDef HAL_PCD_GetState(PCD_HandleTypeDef *hpcd)
		1926	{
		1927	return hpcd->State;
		1928	}
		1929
		1930	/**
		1931	* @}
		1932	*/
		1933
		1934	/**
		1935	* @}
		1936	*/
		1937
		1938	/* Private functions ---------------------------------------------------------*/
		1939	/** @addtogroup PCD_Private_Functions
		1940	* @{
		1941	*/
		1942	#if defined (USB_OTG_FS)
		1943	/**
		1944	* @brief Check FIFO for the next packet to be loaded.
		1945	* @param hpcd PCD handle
		1946	* @param epnum endpoint number
		1947	* @retval HAL status
		1948	*/
		1949	static HAL_StatusTypeDef PCD_WriteEmptyTxFifo(PCD_HandleTypeDef *hpcd, uint32_t epnum)
		1950	{
		1951	USB_OTG_GlobalTypeDef *USBx = hpcd->Instance;
		1952	uint32_t USBx_BASE = (uint32_t)USBx;
		1953	USB_OTG_EPTypeDef *ep;
		1954	uint32_t len;
		1955	uint32_t len32b;
		1956	uint32_t fifoemptymsk;
		1957
		1958	ep = &hpcd->IN_ep[epnum];
		1959
		1960	if (ep->xfer_count > ep->xfer_len)
		1961	{
		1962	return HAL_ERROR;
		1963	}
		1964
		1965	len = ep->xfer_len - ep->xfer_count;
		1966
		1967	if (len > ep->maxpacket)
		1968	{
		1969	len = ep->maxpacket;
		1970	}
		1971
		1972	len32b = (len + 3U) / 4U;
		1973
		1974	while (((USBx_INEP(epnum)->DTXFSTS & USB_OTG_DTXFSTS_INEPTFSAV) >= len32b) &&
		1975	(ep->xfer_count < ep->xfer_len) && (ep->xfer_len != 0U))
		1976	{
		1977	/* Write the FIFO */
		1978	len = ep->xfer_len - ep->xfer_count;
		1979
		1980	if (len > ep->maxpacket)
		1981	{
		1982	len = ep->maxpacket;
		1983	}
		1984	len32b = (len + 3U) / 4U;
		1985
		1986	(void)USB_WritePacket(USBx, ep->xfer_buff, (uint8_t)epnum, (uint16_t)len);
		1987
		1988	ep->xfer_buff += len;
		1989	ep->xfer_count += len;
		1990	}
		1991
		1992	if (ep->xfer_len <= ep->xfer_count)
		1993	{
		1994	fifoemptymsk = (uint32_t)(0x1UL << (epnum & EP_ADDR_MSK));
		1995	USBx_DEVICE->DIEPEMPMSK &= ~fifoemptymsk;
		1996	}
		1997
		1998	return HAL_OK;
		1999	}
		2000
		2001
		2002	/**
		2003	* @brief process EP OUT transfer complete interrupt.
		2004	* @param hpcd PCD handle
		2005	* @param epnum endpoint number
		2006	* @retval HAL status
		2007	*/
		2008	static HAL_StatusTypeDef PCD_EP_OutXfrComplete_int(PCD_HandleTypeDef *hpcd, uint32_t epnum)
		2009	{
		2010	USB_OTG_GlobalTypeDef *USBx = hpcd->Instance;
		2011	uint32_t USBx_BASE = (uint32_t)USBx;
		2012	uint32_t gSNPSiD = (__IO uint32_t )(&USBx->CID + 0x1U);
		2013	uint32_t DoepintReg = USBx_OUTEP(epnum)->DOEPINT;
		2014
		2015	if (gSNPSiD == USB_OTG_CORE_ID_310A)
		2016	{
		2017	/* StupPktRcvd = 1 this is a setup packet */
		2018	if ((DoepintReg & USB_OTG_DOEPINT_STPKTRX) == USB_OTG_DOEPINT_STPKTRX)
		2019	{
		2020	CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_STPKTRX);
		2021	}
		2022	else
		2023	{
		2024	if ((DoepintReg & USB_OTG_DOEPINT_OTEPSPR) == USB_OTG_DOEPINT_OTEPSPR)
		2025	{
		2026	CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_OTEPSPR);
		2027	}
		2028
		2029	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		2030	hpcd->DataOutStageCallback(hpcd, (uint8_t)epnum);
		2031	#else
		2032	HAL_PCD_DataOutStageCallback(hpcd, (uint8_t)epnum);
		2033	#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
		2034	}
		2035	}
		2036	else
		2037	{
		2038	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		2039	hpcd->DataOutStageCallback(hpcd, (uint8_t)epnum);
		2040	#else
		2041	HAL_PCD_DataOutStageCallback(hpcd, (uint8_t)epnum);
		2042	#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
		2043	}
		2044
		2045	return HAL_OK;
		2046	}
		2047
		2048
		2049	/**
		2050	* @brief process EP OUT setup packet received interrupt.
		2051	* @param hpcd PCD handle
		2052	* @param epnum endpoint number
		2053	* @retval HAL status
		2054	*/
		2055	static HAL_StatusTypeDef PCD_EP_OutSetupPacket_int(PCD_HandleTypeDef *hpcd, uint32_t epnum)
		2056	{
		2057	USB_OTG_GlobalTypeDef *USBx = hpcd->Instance;
		2058	uint32_t USBx_BASE = (uint32_t)USBx;
		2059	uint32_t gSNPSiD = (__IO uint32_t )(&USBx->CID + 0x1U);
		2060	uint32_t DoepintReg = USBx_OUTEP(epnum)->DOEPINT;
		2061
		2062	if ((gSNPSiD > USB_OTG_CORE_ID_300A) &&
		2063	((DoepintReg & USB_OTG_DOEPINT_STPKTRX) == USB_OTG_DOEPINT_STPKTRX))
		2064	{
		2065	CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_STPKTRX);
		2066	}
		2067
		2068	/* Inform the upper layer that a setup packet is available */
		2069	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		2070	hpcd->SetupStageCallback(hpcd);
		2071	#else
		2072	HAL_PCD_SetupStageCallback(hpcd);
		2073	#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
		2074
		2075	return HAL_OK;
		2076	}
		2077	#endif /* defined (USB_OTG_FS) */
		2078
		2079	#if defined (USB)
		2080	/**
		2081	* @brief This function handles PCD Endpoint interrupt request.
		2082	* @param hpcd PCD handle
		2083	* @retval HAL status
		2084	*/
		2085	static HAL_StatusTypeDef PCD_EP_ISR_Handler(PCD_HandleTypeDef *hpcd)
		2086	{
		2087	PCD_EPTypeDef *ep;
		2088	uint16_t count, wIstr, wEPVal, TxByteNbre;
		2089	uint8_t epindex;
		2090
		2091	/* stay in loop while pending interrupts */
		2092	while ((hpcd->Instance->ISTR & USB_ISTR_CTR) != 0U)
		2093	{
		2094	wIstr = hpcd->Instance->ISTR;
		2095
		2096	/* extract highest priority endpoint number */
		2097	epindex = (uint8_t)(wIstr & USB_ISTR_EP_ID);
		2098
		2099	if (epindex == 0U)
		2100	{
		2101	/* Decode and service control endpoint interrupt */
		2102
		2103	/* DIR bit = origin of the interrupt */
		2104	if ((wIstr & USB_ISTR_DIR) == 0U)
		2105	{
		2106	/* DIR = 0 */
		2107
		2108	/* DIR = 0 => IN int */
		2109	/* DIR = 0 implies that (EP_CTR_TX = 1) always */
		2110	PCD_CLEAR_TX_EP_CTR(hpcd->Instance, PCD_ENDP0);
		2111	ep = &hpcd->IN_ep[0];
		2112
		2113	ep->xfer_count = PCD_GET_EP_TX_CNT(hpcd->Instance, ep->num);
		2114	ep->xfer_buff += ep->xfer_count;
		2115
		2116	/* TX COMPLETE */
		2117	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		2118	hpcd->DataInStageCallback(hpcd, 0U);
		2119	#else
		2120	HAL_PCD_DataInStageCallback(hpcd, 0U);
		2121	#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
		2122
		2123	if ((hpcd->USB_Address > 0U) && (ep->xfer_len == 0U))
		2124	{
		2125	hpcd->Instance->DADDR = ((uint16_t)hpcd->USB_Address \| USB_DADDR_EF);
		2126	hpcd->USB_Address = 0U;
		2127	}
		2128	}
		2129	else
		2130	{
		2131	/* DIR = 1 */
		2132
		2133	/* DIR = 1 & CTR_RX => SETUP or OUT int */
		2134	/* DIR = 1 & (CTR_TX \| CTR_RX) => 2 int pending */
		2135	ep = &hpcd->OUT_ep[0];
		2136	wEPVal = PCD_GET_ENDPOINT(hpcd->Instance, PCD_ENDP0);
		2137
		2138	if ((wEPVal & USB_EP_SETUP) != 0U)
		2139	{
		2140	/* Get SETUP Packet */
		2141	ep->xfer_count = PCD_GET_EP_RX_CNT(hpcd->Instance, ep->num);
		2142
		2143	USB_ReadPMA(hpcd->Instance, (uint8_t *)hpcd->Setup,
		2144	ep->pmaadress, (uint16_t)ep->xfer_count);
		2145
		2146	/* SETUP bit kept frozen while CTR_RX = 1 */
		2147	PCD_CLEAR_RX_EP_CTR(hpcd->Instance, PCD_ENDP0);
		2148
		2149	/* Process SETUP Packet*/
		2150	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		2151	hpcd->SetupStageCallback(hpcd);
		2152	#else
		2153	HAL_PCD_SetupStageCallback(hpcd);
		2154	#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
		2155	}
		2156	else if ((wEPVal & USB_EP_CTR_RX) != 0U)
		2157	{
		2158	PCD_CLEAR_RX_EP_CTR(hpcd->Instance, PCD_ENDP0);
		2159
		2160	/* Get Control Data OUT Packet */
		2161	ep->xfer_count = PCD_GET_EP_RX_CNT(hpcd->Instance, ep->num);
		2162
		2163	if ((ep->xfer_count != 0U) && (ep->xfer_buff != 0U))
		2164	{
		2165	USB_ReadPMA(hpcd->Instance, ep->xfer_buff,
		2166	ep->pmaadress, (uint16_t)ep->xfer_count);
		2167
		2168	ep->xfer_buff += ep->xfer_count;
		2169
		2170	/* Process Control Data OUT Packet */
		2171	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		2172	hpcd->DataOutStageCallback(hpcd, 0U);
		2173	#else
		2174	HAL_PCD_DataOutStageCallback(hpcd, 0U);
		2175	#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
		2176	}
		2177
		2178	if ((PCD_GET_ENDPOINT(hpcd->Instance, PCD_ENDP0) & USB_EP_SETUP) == 0U)
		2179	{
		2180	PCD_SET_EP_RX_CNT(hpcd->Instance, PCD_ENDP0, ep->maxpacket);
		2181	PCD_SET_EP_RX_STATUS(hpcd->Instance, PCD_ENDP0, USB_EP_RX_VALID);
		2182	}
		2183	}
		2184	}
		2185	}
		2186	else
		2187	{
		2188	/* Decode and service non control endpoints interrupt */
		2189	/* process related endpoint register */
		2190	wEPVal = PCD_GET_ENDPOINT(hpcd->Instance, epindex);
		2191
		2192	if ((wEPVal & USB_EP_CTR_RX) != 0U)
		2193	{
		2194	/* clear int flag */
		2195	PCD_CLEAR_RX_EP_CTR(hpcd->Instance, epindex);
		2196	ep = &hpcd->OUT_ep[epindex];
		2197
		2198	/* OUT Single Buffering */
		2199	if (ep->doublebuffer == 0U)
		2200	{
		2201	count = (uint16_t)PCD_GET_EP_RX_CNT(hpcd->Instance, ep->num);
		2202
		2203	if (count != 0U)
		2204	{
		2205	USB_ReadPMA(hpcd->Instance, ep->xfer_buff, ep->pmaadress, count);
		2206	}
		2207	}
		2208	else
		2209	{
		2210	/* manage double buffer bulk out */
		2211	if (ep->type == EP_TYPE_BULK)
		2212	{
		2213	count = HAL_PCD_EP_DB_Receive(hpcd, ep, wEPVal);
		2214	}
		2215	else /* manage double buffer iso out */
		2216	{
		2217	/* free EP OUT Buffer */
		2218	PCD_FreeUserBuffer(hpcd->Instance, ep->num, 0U);
		2219
		2220	if ((PCD_GET_ENDPOINT(hpcd->Instance, ep->num) & USB_EP_DTOG_RX) != 0U)
		2221	{
		2222	/* read from endpoint BUF0Addr buffer */
		2223	count = (uint16_t)PCD_GET_EP_DBUF0_CNT(hpcd->Instance, ep->num);
		2224
		2225	if (count != 0U)
		2226	{
		2227	USB_ReadPMA(hpcd->Instance, ep->xfer_buff, ep->pmaaddr0, count);
		2228	}
		2229	}
		2230	else
		2231	{
		2232	/* read from endpoint BUF1Addr buffer */
		2233	count = (uint16_t)PCD_GET_EP_DBUF1_CNT(hpcd->Instance, ep->num);
		2234
		2235	if (count != 0U)
		2236	{
		2237	USB_ReadPMA(hpcd->Instance, ep->xfer_buff, ep->pmaaddr1, count);
		2238	}
		2239	}
		2240	}
		2241	}
		2242	/* multi-packet on the NON control OUT endpoint */
		2243	ep->xfer_count += count;
		2244	ep->xfer_buff += count;
		2245
		2246	if ((ep->xfer_len == 0U) \|\| (count < ep->maxpacket))
		2247	{
		2248	/* RX COMPLETE */
		2249	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		2250	hpcd->DataOutStageCallback(hpcd, ep->num);
		2251	#else
		2252	HAL_PCD_DataOutStageCallback(hpcd, ep->num);
		2253	#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
		2254	}
		2255	else
		2256	{
		2257	(void) USB_EPStartXfer(hpcd->Instance, ep);
		2258	}
		2259
		2260	}
		2261
		2262	if ((wEPVal & USB_EP_CTR_TX) != 0U)
		2263	{
		2264	ep = &hpcd->IN_ep[epindex];
		2265
		2266	/* clear int flag */
		2267	PCD_CLEAR_TX_EP_CTR(hpcd->Instance, epindex);
		2268
		2269	/* Manage all non bulk/isoc transaction Bulk Single Buffer Transaction */
		2270	if ((ep->type == EP_TYPE_INTR) \|\| (ep->type == EP_TYPE_CTRL) \|\|
		2271	((ep->type == EP_TYPE_BULK) && ((wEPVal & USB_EP_KIND) == 0U)))
		2272	{
		2273	/* multi-packet on the NON control IN endpoint */
		2274	TxByteNbre = (uint16_t)PCD_GET_EP_TX_CNT(hpcd->Instance, ep->num);
		2275
		2276	if (ep->xfer_len > TxByteNbre)
		2277	{
		2278	ep->xfer_len -= TxByteNbre;
		2279	}
		2280	else
		2281	{
		2282	ep->xfer_len = 0U;
		2283	}
		2284
		2285	/* Zero Length Packet? */
		2286	if (ep->xfer_len == 0U)
		2287	{
		2288	/* TX COMPLETE */
		2289	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		2290	hpcd->DataInStageCallback(hpcd, ep->num);
		2291	#else
		2292	HAL_PCD_DataInStageCallback(hpcd, ep->num);
		2293	#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
		2294	}
		2295	else
		2296	{
		2297	/* Transfer is not yet Done */
		2298	ep->xfer_buff += TxByteNbre;
		2299	ep->xfer_count += TxByteNbre;
		2300	(void)USB_EPStartXfer(hpcd->Instance, ep);
		2301	}
		2302	}
		2303	/* Double Buffer Iso/bulk IN (bulk transfer Len > Ep_Mps) */
		2304	else
		2305	{
		2306	(void)HAL_PCD_EP_DB_Transmit(hpcd, ep, wEPVal);
		2307	}
		2308	}
		2309	}
		2310	}
		2311
		2312	return HAL_OK;
		2313	}
		2314
		2315
		2316	/**
		2317	* @brief Manage double buffer bulk out transaction from ISR
		2318	* @param hpcd PCD handle
		2319	* @param ep current endpoint handle
		2320	* @param wEPVal Last snapshot of EPRx register value taken in ISR
		2321	* @retval HAL status
		2322	*/
		2323	static uint16_t HAL_PCD_EP_DB_Receive(PCD_HandleTypeDef *hpcd,
		2324	PCD_EPTypeDef *ep, uint16_t wEPVal)
		2325	{
		2326	uint16_t count;
		2327
		2328	/* Manage Buffer0 OUT */
		2329	if ((wEPVal & USB_EP_DTOG_RX) != 0U)
		2330	{
		2331	/* Get count of received Data on buffer0 */
		2332	count = (uint16_t)PCD_GET_EP_DBUF0_CNT(hpcd->Instance, ep->num);
		2333
		2334	if (ep->xfer_len >= count)
		2335	{
		2336	ep->xfer_len -= count;
		2337	}
		2338	else
		2339	{
		2340	ep->xfer_len = 0U;
		2341	}
		2342
		2343	if (ep->xfer_len == 0U)
		2344	{
		2345	/* set NAK to OUT endpoint since double buffer is enabled */
		2346	PCD_SET_EP_RX_STATUS(hpcd->Instance, ep->num, USB_EP_RX_NAK);
		2347	}
		2348
		2349	/* Check if Buffer1 is in blocked sate which requires to toggle */
		2350	if ((wEPVal & USB_EP_DTOG_TX) != 0U)
		2351	{
		2352	PCD_FreeUserBuffer(hpcd->Instance, ep->num, 0U);
		2353	}
		2354
		2355	if (count != 0U)
		2356	{
		2357	USB_ReadPMA(hpcd->Instance, ep->xfer_buff, ep->pmaaddr0, count);
		2358	}
		2359	}
		2360	/* Manage Buffer 1 DTOG_RX=0 */
		2361	else
		2362	{
		2363	/* Get count of received data */
		2364	count = (uint16_t)PCD_GET_EP_DBUF1_CNT(hpcd->Instance, ep->num);
		2365
		2366	if (ep->xfer_len >= count)
		2367	{
		2368	ep->xfer_len -= count;
		2369	}
		2370	else
		2371	{
		2372	ep->xfer_len = 0U;
		2373	}
		2374
		2375	if (ep->xfer_len == 0U)
		2376	{
		2377	/* set NAK on the current endpoint */
		2378	PCD_SET_EP_RX_STATUS(hpcd->Instance, ep->num, USB_EP_RX_NAK);
		2379	}
		2380
		2381	/Need to FreeUser Buffer/
		2382	if ((wEPVal & USB_EP_DTOG_TX) == 0U)
		2383	{
		2384	PCD_FreeUserBuffer(hpcd->Instance, ep->num, 0U);
		2385	}
		2386
		2387	if (count != 0U)
		2388	{
		2389	USB_ReadPMA(hpcd->Instance, ep->xfer_buff, ep->pmaaddr1, count);
		2390	}
		2391	}
		2392
		2393	return count;
		2394	}
		2395
		2396
		2397	/**
		2398	* @brief Manage double buffer bulk IN transaction from ISR
		2399	* @param hpcd PCD handle
		2400	* @param ep current endpoint handle
		2401	* @param wEPVal Last snapshot of EPRx register value taken in ISR
		2402	* @retval HAL status
		2403	*/
		2404	static HAL_StatusTypeDef HAL_PCD_EP_DB_Transmit(PCD_HandleTypeDef *hpcd,
		2405	PCD_EPTypeDef *ep, uint16_t wEPVal)
		2406	{
		2407	uint32_t len;
		2408	uint16_t TxByteNbre;
		2409
		2410	/* Data Buffer0 ACK received */
		2411	if ((wEPVal & USB_EP_DTOG_TX) != 0U)
		2412	{
		2413	/* multi-packet on the NON control IN endpoint */
		2414	TxByteNbre = (uint16_t)PCD_GET_EP_DBUF0_CNT(hpcd->Instance, ep->num);
		2415
		2416	if (ep->xfer_len > TxByteNbre)
		2417	{
		2418	ep->xfer_len -= TxByteNbre;
		2419	}
		2420	else
		2421	{
		2422	ep->xfer_len = 0U;
		2423	}
		2424	/* Transfer is completed */
		2425	if (ep->xfer_len == 0U)
		2426	{
		2427	PCD_SET_EP_DBUF0_CNT(hpcd->Instance, ep->num, ep->is_in, 0U);
		2428	PCD_SET_EP_DBUF1_CNT(hpcd->Instance, ep->num, ep->is_in, 0U);
		2429
		2430	/* TX COMPLETE */
		2431	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		2432	hpcd->DataInStageCallback(hpcd, ep->num);
		2433	#else
		2434	HAL_PCD_DataInStageCallback(hpcd, ep->num);
		2435	#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
		2436
		2437	if ((wEPVal & USB_EP_DTOG_RX) != 0U)
		2438	{
		2439	PCD_FreeUserBuffer(hpcd->Instance, ep->num, 1U);
		2440	}
		2441	}
		2442	else /* Transfer is not yet Done */
		2443	{
		2444	/* need to Free USB Buff */
		2445	if ((wEPVal & USB_EP_DTOG_RX) != 0U)
		2446	{
		2447	PCD_FreeUserBuffer(hpcd->Instance, ep->num, 1U);
		2448	}
		2449
		2450	/* Still there is data to Fill in the next Buffer */
		2451	if (ep->xfer_fill_db == 1U)
		2452	{
		2453	ep->xfer_buff += TxByteNbre;
		2454	ep->xfer_count += TxByteNbre;
		2455
		2456	/* Calculate the len of the new buffer to fill */
		2457	if (ep->xfer_len_db >= ep->maxpacket)
		2458	{
		2459	len = ep->maxpacket;
		2460	ep->xfer_len_db -= len;
		2461	}
		2462	else if (ep->xfer_len_db == 0U)
		2463	{
		2464	len = TxByteNbre;
		2465	ep->xfer_fill_db = 0U;
		2466	}
		2467	else
		2468	{
		2469	ep->xfer_fill_db = 0U;
		2470	len = ep->xfer_len_db;
		2471	ep->xfer_len_db = 0U;
		2472	}
		2473
		2474	/* Write remaining Data to Buffer */
		2475	/* Set the Double buffer counter for pma buffer1 */
		2476	PCD_SET_EP_DBUF0_CNT(hpcd->Instance, ep->num, ep->is_in, len);
		2477
		2478	/* Copy user buffer to USB PMA */
		2479	USB_WritePMA(hpcd->Instance, ep->xfer_buff, ep->pmaaddr0, (uint16_t)len);
		2480	}
		2481	}
		2482	}
		2483	else /* Data Buffer1 ACK received */
		2484	{
		2485	/* multi-packet on the NON control IN endpoint */
		2486	TxByteNbre = (uint16_t)PCD_GET_EP_DBUF1_CNT(hpcd->Instance, ep->num);
		2487
		2488	if (ep->xfer_len >= TxByteNbre)
		2489	{
		2490	ep->xfer_len -= TxByteNbre;
		2491	}
		2492	else
		2493	{
		2494	ep->xfer_len = 0U;
		2495	}
		2496
		2497	/* Transfer is completed */
		2498	if (ep->xfer_len == 0U)
		2499	{
		2500	PCD_SET_EP_DBUF0_CNT(hpcd->Instance, ep->num, ep->is_in, 0U);
		2501	PCD_SET_EP_DBUF1_CNT(hpcd->Instance, ep->num, ep->is_in, 0U);
		2502
		2503	/* TX COMPLETE */
		2504	#if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U)
		2505	hpcd->DataInStageCallback(hpcd, ep->num);
		2506	#else
		2507	HAL_PCD_DataInStageCallback(hpcd, ep->num);
		2508	#endif /* USE_HAL_PCD_REGISTER_CALLBACKS */
		2509
		2510	/* need to Free USB Buff */
		2511	if ((wEPVal & USB_EP_DTOG_RX) == 0U)
		2512	{
		2513	PCD_FreeUserBuffer(hpcd->Instance, ep->num, 1U);
		2514	}
		2515	}
		2516	else /* Transfer is not yet Done */
		2517	{
		2518	/* need to Free USB Buff */
		2519	if ((wEPVal & USB_EP_DTOG_RX) == 0U)
		2520	{
		2521	PCD_FreeUserBuffer(hpcd->Instance, ep->num, 1U);
		2522	}
		2523
		2524	/* Still there is data to Fill in the next Buffer */
		2525	if (ep->xfer_fill_db == 1U)
		2526	{
		2527	ep->xfer_buff += TxByteNbre;
		2528	ep->xfer_count += TxByteNbre;
		2529
		2530	/* Calculate the len of the new buffer to fill */
		2531	if (ep->xfer_len_db >= ep->maxpacket)
		2532	{
		2533	len = ep->maxpacket;
		2534	ep->xfer_len_db -= len;
		2535	}
		2536	else if (ep->xfer_len_db == 0U)
		2537	{
		2538	len = TxByteNbre;
		2539	ep->xfer_fill_db = 0U;
		2540	}
		2541	else
		2542	{
		2543	len = ep->xfer_len_db;
		2544	ep->xfer_len_db = 0U;
		2545	ep->xfer_fill_db = 0;
		2546	}
		2547
		2548	/* Set the Double buffer counter for pmabuffer1 */
		2549	PCD_SET_EP_DBUF1_CNT(hpcd->Instance, ep->num, ep->is_in, len);
		2550
		2551	/* Copy the user buffer to USB PMA */
		2552	USB_WritePMA(hpcd->Instance, ep->xfer_buff, ep->pmaaddr1, (uint16_t)len);
		2553	}
		2554	}
		2555	}
		2556
		2557	/enable endpoint IN/
		2558	PCD_SET_EP_TX_STATUS(hpcd->Instance, ep->num, USB_EP_TX_VALID);
		2559
		2560	return HAL_OK;
		2561	}
		2562
		2563	#endif /* defined (USB) */
		2564
		2565	/**
		2566	* @}
		2567	*/
		2568	#endif /* defined (USB) \|\| defined (USB_OTG_FS) */
		2569	#endif /* HAL_PCD_MODULE_ENABLED */
		2570
		2571	/**
		2572	* @}
		2573	*/
		2574
		2575	/**
		2576	* @}
		2577	*/
		2578
		2579	/********************** (C) COPYRIGHT STMicroelectronics *END OF FILE**/

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(root)/trunk/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_pcd.c – Rev 2