WebSVN – dashGPS – Blame – /trunk/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_ll_usb.c

Rev	Author	Line No.	Line
2	mjames	1	/**
		2	******************************************************************************
		3	* @file stm32f1xx_ll_usb.c
		4	* @author MCD Application Team
		5	* @brief USB Low Layer HAL module driver.
		6	*
		7	* This file provides firmware functions to manage the following
		8	* functionalities of the USB Peripheral Controller:
		9	* + Initialization/de-initialization functions
		10	* + I/O operation functions
		11	* + Peripheral Control functions
		12	* + Peripheral State functions
		13	*
		14	@verbatim
		15	==============================================================================
		16	##### How to use this driver #####
		17	==============================================================================
		18	[..]
		19	(#) Fill parameters of Init structure in USB_OTG_CfgTypeDef structure.
		20
		21	(#) Call USB_CoreInit() API to initialize the USB Core peripheral.
		22
		23	(#) The upper HAL HCD/PCD driver will call the right routines for its internal processes.
		24
		25	@endverbatim
		26	******************************************************************************
		27	* @attention
		28	*
		29	* <h2><center>© Copyright (c) 2016 STMicroelectronics.
		30	* All rights reserved.</center></h2>
		31	*
		32	* This software component is licensed by ST under BSD 3-Clause license,
		33	* the "License"; You may not use this file except in compliance with the
		34	* License. You may obtain a copy of the License at:
		35	* opensource.org/licenses/BSD-3-Clause
		36	*
		37	******************************************************************************
		38	*/
		39
		40	/* Includes ------------------------------------------------------------------*/
		41	#include "stm32f1xx_hal.h"
		42
		43	/** @addtogroup STM32F1xx_LL_USB_DRIVER
		44	* @{
		45	*/
		46
		47	#if defined (HAL_PCD_MODULE_ENABLED) \|\| defined (HAL_HCD_MODULE_ENABLED)
		48	#if defined (USB) \|\| defined (USB_OTG_FS)
		49	/* Private typedef -----------------------------------------------------------*/
		50	/* Private define ------------------------------------------------------------*/
		51	/* Private macro -------------------------------------------------------------*/
		52	/* Private variables ---------------------------------------------------------*/
		53	/* Private function prototypes -----------------------------------------------*/
		54	/* Private functions ---------------------------------------------------------*/
		55	#if defined (USB_OTG_FS)
		56	static HAL_StatusTypeDef USB_CoreReset(USB_OTG_GlobalTypeDef *USBx);
		57
		58	/* Exported functions --------------------------------------------------------*/
		59	/** @defgroup USB_LL_Exported_Functions USB Low Layer Exported Functions
		60	* @{
		61	*/
		62
		63	/** @defgroup USB_LL_Exported_Functions_Group1 Initialization/de-initialization functions
		64	* @brief Initialization and Configuration functions
		65	*
		66	@verbatim
		67	===============================================================================
		68	##### Initialization/de-initialization functions #####
		69	===============================================================================
		70
		71	@endverbatim
		72	* @{
		73	*/
		74
		75	/**
		76	* @brief Initializes the USB Core
		77	* @param USBx USB Instance
		78	* @param cfg pointer to a USB_OTG_CfgTypeDef structure that contains
		79	* the configuration information for the specified USBx peripheral.
		80	* @retval HAL status
		81	*/
		82	HAL_StatusTypeDef USB_CoreInit(USB_OTG_GlobalTypeDef *USBx, USB_OTG_CfgTypeDef cfg)
		83	{
		84	HAL_StatusTypeDef ret;
		85
		86	if (cfg.phy_itface == USB_OTG_ULPI_PHY)
		87	{
		88	USBx->GCCFG &= ~(USB_OTG_GCCFG_PWRDWN);
		89
		90	/* Init The ULPI Interface */
		91	USBx->GUSBCFG &= ~(USB_OTG_GUSBCFG_TSDPS \| USB_OTG_GUSBCFG_ULPIFSLS \| USB_OTG_GUSBCFG_PHYSEL);
		92
		93	/* Select vbus source */
		94	USBx->GUSBCFG &= ~(USB_OTG_GUSBCFG_ULPIEVBUSD \| USB_OTG_GUSBCFG_ULPIEVBUSI);
		95	if (cfg.use_external_vbus == 1U)
		96	{
		97	USBx->GUSBCFG \|= USB_OTG_GUSBCFG_ULPIEVBUSD;
		98	}
		99	/* Reset after a PHY select */
		100	ret = USB_CoreReset(USBx);
		101	}
		102	else /* FS interface (embedded Phy) */
		103	{
		104	/* Select FS Embedded PHY */
		105	USBx->GUSBCFG \|= USB_OTG_GUSBCFG_PHYSEL;
		106
		107	/* Reset after a PHY select and set Host mode */
		108	ret = USB_CoreReset(USBx);
		109
		110	/* Activate the USB Transceiver */
		111	USBx->GCCFG \|= USB_OTG_GCCFG_PWRDWN;
		112	}
		113
		114	return ret;
		115	}
		116
		117
		118	/**
		119	* @brief Set the USB turnaround time
		120	* @param USBx USB Instance
		121	* @param hclk: AHB clock frequency
		122	* @retval USB turnaround time In PHY Clocks number
		123	*/
		124	HAL_StatusTypeDef USB_SetTurnaroundTime(USB_OTG_GlobalTypeDef *USBx,
		125	uint32_t hclk, uint8_t speed)
		126	{
		127	uint32_t UsbTrd;
		128
		129	/* The USBTRD is configured according to the tables below, depending on AHB frequency
		130	used by application. In the low AHB frequency range it is used to stretch enough the USB response
		131	time to IN tokens, the USB turnaround time, so to compensate for the longer AHB read access
		132	latency to the Data FIFO */
		133	if (speed == USBD_FS_SPEED)
		134	{
		135	if ((hclk >= 14200000U) && (hclk < 15000000U))
		136	{
		137	/* hclk Clock Range between 14.2-15 MHz */
		138	UsbTrd = 0xFU;
		139	}
		140	else if ((hclk >= 15000000U) && (hclk < 16000000U))
		141	{
		142	/* hclk Clock Range between 15-16 MHz */
		143	UsbTrd = 0xEU;
		144	}
		145	else if ((hclk >= 16000000U) && (hclk < 17200000U))
		146	{
		147	/* hclk Clock Range between 16-17.2 MHz */
		148	UsbTrd = 0xDU;
		149	}
		150	else if ((hclk >= 17200000U) && (hclk < 18500000U))
		151	{
		152	/* hclk Clock Range between 17.2-18.5 MHz */
		153	UsbTrd = 0xCU;
		154	}
		155	else if ((hclk >= 18500000U) && (hclk < 20000000U))
		156	{
		157	/* hclk Clock Range between 18.5-20 MHz */
		158	UsbTrd = 0xBU;
		159	}
		160	else if ((hclk >= 20000000U) && (hclk < 21800000U))
		161	{
		162	/* hclk Clock Range between 20-21.8 MHz */
		163	UsbTrd = 0xAU;
		164	}
		165	else if ((hclk >= 21800000U) && (hclk < 24000000U))
		166	{
		167	/* hclk Clock Range between 21.8-24 MHz */
		168	UsbTrd = 0x9U;
		169	}
		170	else if ((hclk >= 24000000U) && (hclk < 27700000U))
		171	{
		172	/* hclk Clock Range between 24-27.7 MHz */
		173	UsbTrd = 0x8U;
		174	}
		175	else if ((hclk >= 27700000U) && (hclk < 32000000U))
		176	{
		177	/* hclk Clock Range between 27.7-32 MHz */
		178	UsbTrd = 0x7U;
		179	}
		180	else /* if(hclk >= 32000000) */
		181	{
		182	/* hclk Clock Range between 32-200 MHz */
		183	UsbTrd = 0x6U;
		184	}
		185	}
		186	else
		187	{
		188	UsbTrd = USBD_DEFAULT_TRDT_VALUE;
		189	}
		190
		191	USBx->GUSBCFG &= ~USB_OTG_GUSBCFG_TRDT;
		192	USBx->GUSBCFG \|= (uint32_t)((UsbTrd << 10) & USB_OTG_GUSBCFG_TRDT);
		193
		194	return HAL_OK;
		195	}
		196
		197	/**
		198	* @brief USB_EnableGlobalInt
		199	* Enables the controller's Global Int in the AHB Config reg
		200	* @param USBx Selected device
		201	* @retval HAL status
		202	*/
		203	HAL_StatusTypeDef USB_EnableGlobalInt(USB_OTG_GlobalTypeDef *USBx)
		204	{
		205	USBx->GAHBCFG \|= USB_OTG_GAHBCFG_GINT;
		206	return HAL_OK;
		207	}
		208
		209	/**
		210	* @brief USB_DisableGlobalInt
		211	* Disable the controller's Global Int in the AHB Config reg
		212	* @param USBx Selected device
		213	* @retval HAL status
		214	*/
		215	HAL_StatusTypeDef USB_DisableGlobalInt(USB_OTG_GlobalTypeDef *USBx)
		216	{
		217	USBx->GAHBCFG &= ~USB_OTG_GAHBCFG_GINT;
		218	return HAL_OK;
		219	}
		220
		221	/**
		222	* @brief USB_SetCurrentMode : Set functional mode
		223	* @param USBx Selected device
		224	* @param mode current core mode
		225	* This parameter can be one of these values:
		226	* @arg USB_DEVICE_MODE: Peripheral mode
		227	* @arg USB_HOST_MODE: Host mode
		228	* @arg USB_DRD_MODE: Dual Role Device mode
		229	* @retval HAL status
		230	*/
		231	HAL_StatusTypeDef USB_SetCurrentMode(USB_OTG_GlobalTypeDef *USBx, USB_ModeTypeDef mode)
		232	{
		233	USBx->GUSBCFG &= ~(USB_OTG_GUSBCFG_FHMOD \| USB_OTG_GUSBCFG_FDMOD);
		234
		235	if (mode == USB_HOST_MODE)
		236	{
		237	USBx->GUSBCFG \|= USB_OTG_GUSBCFG_FHMOD;
		238	}
		239	else if (mode == USB_DEVICE_MODE)
		240	{
		241	USBx->GUSBCFG \|= USB_OTG_GUSBCFG_FDMOD;
		242	}
		243	else
		244	{
		245	return HAL_ERROR;
		246	}
		247	HAL_Delay(50U);
		248
		249	return HAL_OK;
		250	}
		251
		252	/**
		253	* @brief USB_DevInit : Initializes the USB_OTG controller registers
		254	* for device mode
		255	* @param USBx Selected device
		256	* @param cfg pointer to a USB_OTG_CfgTypeDef structure that contains
		257	* the configuration information for the specified USBx peripheral.
		258	* @retval HAL status
		259	*/
		260	HAL_StatusTypeDef USB_DevInit(USB_OTG_GlobalTypeDef *USBx, USB_OTG_CfgTypeDef cfg)
		261	{
		262	HAL_StatusTypeDef ret = HAL_OK;
		263	uint32_t USBx_BASE = (uint32_t)USBx;
		264	uint32_t i;
		265
		266	for (i = 0U; i < 15U; i++)
		267	{
		268	USBx->DIEPTXF[i] = 0U;
		269	}
		270
		271	/* Enable HW VBUS sensing */
		272	USBx->GCCFG \|= USB_OTG_GCCFG_VBUSBSEN;
		273
		274	/* Restart the Phy Clock */
		275	USBx_PCGCCTL = 0U;
		276
		277	/* Device mode configuration */
		278	USBx_DEVICE->DCFG \|= DCFG_FRAME_INTERVAL_80;
		279
		280	/* Set Core speed to Full speed mode */
		281	(void)USB_SetDevSpeed(USBx, USB_OTG_SPEED_FULL);
		282
		283	/* Flush the FIFOs */
		284	if (USB_FlushTxFifo(USBx, 0x10U) != HAL_OK) /* all Tx FIFOs */
		285	{
		286	ret = HAL_ERROR;
		287	}
		288
		289	if (USB_FlushRxFifo(USBx) != HAL_OK)
		290	{
		291	ret = HAL_ERROR;
		292	}
		293
		294	/* Clear all pending Device Interrupts */
		295	USBx_DEVICE->DIEPMSK = 0U;
		296	USBx_DEVICE->DOEPMSK = 0U;
		297	USBx_DEVICE->DAINTMSK = 0U;
		298
		299	for (i = 0U; i < cfg.dev_endpoints; i++)
		300	{
		301	if ((USBx_INEP(i)->DIEPCTL & USB_OTG_DIEPCTL_EPENA) == USB_OTG_DIEPCTL_EPENA)
		302	{
		303	if (i == 0U)
		304	{
		305	USBx_INEP(i)->DIEPCTL = USB_OTG_DIEPCTL_SNAK;
		306	}
		307	else
		308	{
		309	USBx_INEP(i)->DIEPCTL = USB_OTG_DIEPCTL_EPDIS \| USB_OTG_DIEPCTL_SNAK;
		310	}
		311	}
		312	else
		313	{
		314	USBx_INEP(i)->DIEPCTL = 0U;
		315	}
		316
		317	USBx_INEP(i)->DIEPTSIZ = 0U;
		318	USBx_INEP(i)->DIEPINT = 0xFB7FU;
		319	}
		320
		321	for (i = 0U; i < cfg.dev_endpoints; i++)
		322	{
		323	if ((USBx_OUTEP(i)->DOEPCTL & USB_OTG_DOEPCTL_EPENA) == USB_OTG_DOEPCTL_EPENA)
		324	{
		325	if (i == 0U)
		326	{
		327	USBx_OUTEP(i)->DOEPCTL = USB_OTG_DOEPCTL_SNAK;
		328	}
		329	else
		330	{
		331	USBx_OUTEP(i)->DOEPCTL = USB_OTG_DOEPCTL_EPDIS \| USB_OTG_DOEPCTL_SNAK;
		332	}
		333	}
		334	else
		335	{
		336	USBx_OUTEP(i)->DOEPCTL = 0U;
		337	}
		338
		339	USBx_OUTEP(i)->DOEPTSIZ = 0U;
		340	USBx_OUTEP(i)->DOEPINT = 0xFB7FU;
		341	}
		342
		343	USBx_DEVICE->DIEPMSK &= ~(USB_OTG_DIEPMSK_TXFURM);
		344
		345	/* Disable all interrupts. */
		346	USBx->GINTMSK = 0U;
		347
		348	/* Clear any pending interrupts */
		349	USBx->GINTSTS = 0xBFFFFFFFU;
		350
		351	/* Enable the common interrupts */
		352	USBx->GINTMSK \|= USB_OTG_GINTMSK_RXFLVLM;
		353
		354	/* Enable interrupts matching to the Device mode ONLY */
		355	USBx->GINTMSK \|= USB_OTG_GINTMSK_USBSUSPM \| USB_OTG_GINTMSK_USBRST \|
		356	USB_OTG_GINTMSK_ENUMDNEM \| USB_OTG_GINTMSK_IEPINT \|
		357	USB_OTG_GINTMSK_OEPINT \| USB_OTG_GINTMSK_IISOIXFRM \|
		358	USB_OTG_GINTMSK_PXFRM_IISOOXFRM \| USB_OTG_GINTMSK_WUIM;
		359
		360	if (cfg.Sof_enable != 0U)
		361	{
		362	USBx->GINTMSK \|= USB_OTG_GINTMSK_SOFM;
		363	}
		364
		365	if (cfg.vbus_sensing_enable == 1U)
		366	{
		367	USBx->GINTMSK \|= (USB_OTG_GINTMSK_SRQIM \| USB_OTG_GINTMSK_OTGINT);
		368	}
		369
		370	return ret;
		371	}
		372
		373	/**
		374	* @brief USB_OTG_FlushTxFifo : Flush a Tx FIFO
		375	* @param USBx Selected device
		376	* @param num FIFO number
		377	* This parameter can be a value from 1 to 15
		378	15 means Flush all Tx FIFOs
		379	* @retval HAL status
		380	*/
		381	HAL_StatusTypeDef USB_FlushTxFifo(USB_OTG_GlobalTypeDef *USBx, uint32_t num)
		382	{
		383	uint32_t count = 0U;
		384
		385	USBx->GRSTCTL = (USB_OTG_GRSTCTL_TXFFLSH \| (num << 6));
		386
		387	do
		388	{
		389	if (++count > 200000U)
		390	{
		391	return HAL_TIMEOUT;
		392	}
		393	}
		394	while ((USBx->GRSTCTL & USB_OTG_GRSTCTL_TXFFLSH) == USB_OTG_GRSTCTL_TXFFLSH);
		395
		396	return HAL_OK;
		397	}
		398
		399	/**
		400	* @brief USB_FlushRxFifo : Flush Rx FIFO
		401	* @param USBx Selected device
		402	* @retval HAL status
		403	*/
		404	HAL_StatusTypeDef USB_FlushRxFifo(USB_OTG_GlobalTypeDef *USBx)
		405	{
		406	uint32_t count = 0;
		407
		408	USBx->GRSTCTL = USB_OTG_GRSTCTL_RXFFLSH;
		409
		410	do
		411	{
		412	if (++count > 200000U)
		413	{
		414	return HAL_TIMEOUT;
		415	}
		416	}
		417	while ((USBx->GRSTCTL & USB_OTG_GRSTCTL_RXFFLSH) == USB_OTG_GRSTCTL_RXFFLSH);
		418
		419	return HAL_OK;
		420	}
		421
		422	/**
		423	* @brief USB_SetDevSpeed Initializes the DevSpd field of DCFG register
		424	* depending the PHY type and the enumeration speed of the device.
		425	* @param USBx Selected device
		426	* @param speed device speed
		427	* This parameter can be one of these values:
		428	* @arg USB_OTG_SPEED_FULL: Full speed mode
		429	* @retval Hal status
		430	*/
		431	HAL_StatusTypeDef USB_SetDevSpeed(USB_OTG_GlobalTypeDef *USBx, uint8_t speed)
		432	{
		433	uint32_t USBx_BASE = (uint32_t)USBx;
		434
		435	USBx_DEVICE->DCFG \|= speed;
		436	return HAL_OK;
		437	}
		438
		439	/**
		440	* @brief USB_GetDevSpeed Return the Dev Speed
		441	* @param USBx Selected device
		442	* @retval speed device speed
		443	* This parameter can be one of these values:
		444	* @arg PCD_SPEED_FULL: Full speed mode
		445	*/
		446	uint8_t USB_GetDevSpeed(USB_OTG_GlobalTypeDef *USBx)
		447	{
		448	uint32_t USBx_BASE = (uint32_t)USBx;
		449	uint8_t speed;
		450	uint32_t DevEnumSpeed = USBx_DEVICE->DSTS & USB_OTG_DSTS_ENUMSPD;
		451
		452	if ((DevEnumSpeed == DSTS_ENUMSPD_FS_PHY_30MHZ_OR_60MHZ) \|\|
		453	(DevEnumSpeed == DSTS_ENUMSPD_FS_PHY_48MHZ))
		454	{
		455	speed = USBD_FS_SPEED;
		456	}
		457	else
		458	{
		459	speed = 0xFU;
		460	}
		461
		462	return speed;
		463	}
		464
		465	/**
		466	* @brief Activate and configure an endpoint
		467	* @param USBx Selected device
		468	* @param ep pointer to endpoint structure
		469	* @retval HAL status
		470	*/
		471	HAL_StatusTypeDef USB_ActivateEndpoint(USB_OTG_GlobalTypeDef USBx, USB_OTG_EPTypeDef ep)
		472	{
		473	uint32_t USBx_BASE = (uint32_t)USBx;
		474	uint32_t epnum = (uint32_t)ep->num;
		475
		476	if (ep->is_in == 1U)
		477	{
		478	USBx_DEVICE->DAINTMSK \|= USB_OTG_DAINTMSK_IEPM & (uint32_t)(1UL << (ep->num & EP_ADDR_MSK));
		479
		480	if ((USBx_INEP(epnum)->DIEPCTL & USB_OTG_DIEPCTL_USBAEP) == 0U)
		481	{
		482	USBx_INEP(epnum)->DIEPCTL \|= (ep->maxpacket & USB_OTG_DIEPCTL_MPSIZ) \|
		483	((uint32_t)ep->type << 18) \| (epnum << 22) \|
		484	USB_OTG_DIEPCTL_SD0PID_SEVNFRM \|
		485	USB_OTG_DIEPCTL_USBAEP;
		486	}
		487	}
		488	else
		489	{
		490	USBx_DEVICE->DAINTMSK \|= USB_OTG_DAINTMSK_OEPM & ((uint32_t)(1UL << (ep->num & EP_ADDR_MSK)) << 16);
		491
		492	if (((USBx_OUTEP(epnum)->DOEPCTL) & USB_OTG_DOEPCTL_USBAEP) == 0U)
		493	{
		494	USBx_OUTEP(epnum)->DOEPCTL \|= (ep->maxpacket & USB_OTG_DOEPCTL_MPSIZ) \|
		495	((uint32_t)ep->type << 18) \|
		496	USB_OTG_DIEPCTL_SD0PID_SEVNFRM \|
		497	USB_OTG_DOEPCTL_USBAEP;
		498	}
		499	}
		500	return HAL_OK;
		501	}
		502
		503	/**
		504	* @brief Activate and configure a dedicated endpoint
		505	* @param USBx Selected device
		506	* @param ep pointer to endpoint structure
		507	* @retval HAL status
		508	*/
		509	HAL_StatusTypeDef USB_ActivateDedicatedEndpoint(USB_OTG_GlobalTypeDef USBx, USB_OTG_EPTypeDef ep)
		510	{
		511	uint32_t USBx_BASE = (uint32_t)USBx;
		512	uint32_t epnum = (uint32_t)ep->num;
		513
		514	/* Read DEPCTLn register */
		515	if (ep->is_in == 1U)
		516	{
		517	if (((USBx_INEP(epnum)->DIEPCTL) & USB_OTG_DIEPCTL_USBAEP) == 0U)
		518	{
		519	USBx_INEP(epnum)->DIEPCTL \|= (ep->maxpacket & USB_OTG_DIEPCTL_MPSIZ) \|
		520	((uint32_t)ep->type << 18) \| (epnum << 22) \|
		521	USB_OTG_DIEPCTL_SD0PID_SEVNFRM \|
		522	USB_OTG_DIEPCTL_USBAEP;
		523	}
		524
		525	USBx_DEVICE->DEACHMSK \|= USB_OTG_DAINTMSK_IEPM & (uint32_t)(1UL << (ep->num & EP_ADDR_MSK));
		526	}
		527	else
		528	{
		529	if (((USBx_OUTEP(epnum)->DOEPCTL) & USB_OTG_DOEPCTL_USBAEP) == 0U)
		530	{
		531	USBx_OUTEP(epnum)->DOEPCTL \|= (ep->maxpacket & USB_OTG_DOEPCTL_MPSIZ) \|
		532	((uint32_t)ep->type << 18) \| (epnum << 22) \|
		533	USB_OTG_DOEPCTL_USBAEP;
		534	}
		535
		536	USBx_DEVICE->DEACHMSK \|= USB_OTG_DAINTMSK_OEPM & ((uint32_t)(1UL << (ep->num & EP_ADDR_MSK)) << 16);
		537	}
		538
		539	return HAL_OK;
		540	}
		541
		542	/**
		543	* @brief De-activate and de-initialize an endpoint
		544	* @param USBx Selected device
		545	* @param ep pointer to endpoint structure
		546	* @retval HAL status
		547	*/
		548	HAL_StatusTypeDef USB_DeactivateEndpoint(USB_OTG_GlobalTypeDef USBx, USB_OTG_EPTypeDef ep)
		549	{
		550	uint32_t USBx_BASE = (uint32_t)USBx;
		551	uint32_t epnum = (uint32_t)ep->num;
		552
		553	/* Read DEPCTLn register */
		554	if (ep->is_in == 1U)
		555	{
		556	USBx_DEVICE->DEACHMSK &= ~(USB_OTG_DAINTMSK_IEPM & (uint32_t)(1UL << (ep->num & EP_ADDR_MSK)));
		557	USBx_DEVICE->DAINTMSK &= ~(USB_OTG_DAINTMSK_IEPM & (uint32_t)(1UL << (ep->num & EP_ADDR_MSK)));
		558	USBx_INEP(epnum)->DIEPCTL &= ~(USB_OTG_DIEPCTL_USBAEP \|
		559	USB_OTG_DIEPCTL_MPSIZ \|
		560	USB_OTG_DIEPCTL_TXFNUM \|
		561	USB_OTG_DIEPCTL_SD0PID_SEVNFRM \|
		562	USB_OTG_DIEPCTL_EPTYP);
		563	}
		564	else
		565	{
		566	USBx_DEVICE->DEACHMSK &= ~(USB_OTG_DAINTMSK_OEPM & ((uint32_t)(1UL << (ep->num & EP_ADDR_MSK)) << 16));
		567	USBx_DEVICE->DAINTMSK &= ~(USB_OTG_DAINTMSK_OEPM & ((uint32_t)(1UL << (ep->num & EP_ADDR_MSK)) << 16));
		568	USBx_OUTEP(epnum)->DOEPCTL &= ~(USB_OTG_DOEPCTL_USBAEP \|
		569	USB_OTG_DOEPCTL_MPSIZ \|
		570	USB_OTG_DOEPCTL_SD0PID_SEVNFRM \|
		571	USB_OTG_DOEPCTL_EPTYP);
		572	}
		573
		574	return HAL_OK;
		575	}
		576
		577	/**
		578	* @brief De-activate and de-initialize a dedicated endpoint
		579	* @param USBx Selected device
		580	* @param ep pointer to endpoint structure
		581	* @retval HAL status
		582	*/
		583	HAL_StatusTypeDef USB_DeactivateDedicatedEndpoint(USB_OTG_GlobalTypeDef USBx, USB_OTG_EPTypeDef ep)
		584	{
		585	uint32_t USBx_BASE = (uint32_t)USBx;
		586	uint32_t epnum = (uint32_t)ep->num;
		587
		588	/* Read DEPCTLn register */
		589	if (ep->is_in == 1U)
		590	{
		591	USBx_INEP(epnum)->DIEPCTL &= ~ USB_OTG_DIEPCTL_USBAEP;
		592	USBx_DEVICE->DAINTMSK &= ~(USB_OTG_DAINTMSK_IEPM & (uint32_t)(1UL << (ep->num & EP_ADDR_MSK)));
		593	}
		594	else
		595	{
		596	USBx_OUTEP(epnum)->DOEPCTL &= ~USB_OTG_DOEPCTL_USBAEP;
		597	USBx_DEVICE->DAINTMSK &= ~(USB_OTG_DAINTMSK_OEPM & ((uint32_t)(1UL << (ep->num & EP_ADDR_MSK)) << 16));
		598	}
		599
		600	return HAL_OK;
		601	}
		602
		603	/**
		604	* @brief USB_EPStartXfer : setup and starts a transfer over an EP
		605	* @param USBx Selected device
		606	* @param ep pointer to endpoint structure
		607	* @retval HAL status
		608	*/
		609	HAL_StatusTypeDef USB_EPStartXfer(USB_OTG_GlobalTypeDef USBx, USB_OTG_EPTypeDef ep)
		610	{
		611	uint32_t USBx_BASE = (uint32_t)USBx;
		612	uint32_t epnum = (uint32_t)ep->num;
		613	uint16_t pktcnt;
		614
		615	/* IN endpoint */
		616	if (ep->is_in == 1U)
		617	{
		618	/* Zero Length Packet? */
		619	if (ep->xfer_len == 0U)
		620	{
		621	USBx_INEP(epnum)->DIEPTSIZ &= ~(USB_OTG_DIEPTSIZ_PKTCNT);
		622	USBx_INEP(epnum)->DIEPTSIZ \|= (USB_OTG_DIEPTSIZ_PKTCNT & (1U << 19));
		623	USBx_INEP(epnum)->DIEPTSIZ &= ~(USB_OTG_DIEPTSIZ_XFRSIZ);
		624	}
		625	else
		626	{
		627	/* Program the transfer size and packet count
		628	* as follows: xfersize = N * maxpacket +
		629	* short_packet pktcnt = N + (short_packet
		630	* exist ? 1 : 0)
		631	*/
		632	USBx_INEP(epnum)->DIEPTSIZ &= ~(USB_OTG_DIEPTSIZ_XFRSIZ);
		633	USBx_INEP(epnum)->DIEPTSIZ &= ~(USB_OTG_DIEPTSIZ_PKTCNT);
		634	USBx_INEP(epnum)->DIEPTSIZ \|= (USB_OTG_DIEPTSIZ_PKTCNT & (((ep->xfer_len + ep->maxpacket - 1U) / ep->maxpacket) << 19));
		635	USBx_INEP(epnum)->DIEPTSIZ \|= (USB_OTG_DIEPTSIZ_XFRSIZ & ep->xfer_len);
		636
		637	if (ep->type == EP_TYPE_ISOC)
		638	{
		639	USBx_INEP(epnum)->DIEPTSIZ &= ~(USB_OTG_DIEPTSIZ_MULCNT);
		640	USBx_INEP(epnum)->DIEPTSIZ \|= (USB_OTG_DIEPTSIZ_MULCNT & (1U << 29));
		641	}
		642	}
		643	/* EP enable, IN data in FIFO */
		644	USBx_INEP(epnum)->DIEPCTL \|= (USB_OTG_DIEPCTL_CNAK \| USB_OTG_DIEPCTL_EPENA);
		645
		646	if (ep->type != EP_TYPE_ISOC)
		647	{
		648	/* Enable the Tx FIFO Empty Interrupt for this EP */
		649	if (ep->xfer_len > 0U)
		650	{
		651	USBx_DEVICE->DIEPEMPMSK \|= 1UL << (ep->num & EP_ADDR_MSK);
		652	}
		653	}
		654	else
		655	{
		656	if ((USBx_DEVICE->DSTS & (1U << 8)) == 0U)
		657	{
		658	USBx_INEP(epnum)->DIEPCTL \|= USB_OTG_DIEPCTL_SODDFRM;
		659	}
		660	else
		661	{
		662	USBx_INEP(epnum)->DIEPCTL \|= USB_OTG_DIEPCTL_SD0PID_SEVNFRM;
		663	}
		664
		665	(void)USB_WritePacket(USBx, ep->xfer_buff, ep->num, (uint16_t)ep->xfer_len);
		666	}
		667	}
		668	else /* OUT endpoint */
		669	{
		670	/* Program the transfer size and packet count as follows:
		671	* pktcnt = N
		672	* xfersize = N * maxpacket
		673	*/
		674	USBx_OUTEP(epnum)->DOEPTSIZ &= ~(USB_OTG_DOEPTSIZ_XFRSIZ);
		675	USBx_OUTEP(epnum)->DOEPTSIZ &= ~(USB_OTG_DOEPTSIZ_PKTCNT);
		676
		677	if (ep->xfer_len == 0U)
		678	{
		679	USBx_OUTEP(epnum)->DOEPTSIZ \|= (USB_OTG_DOEPTSIZ_XFRSIZ & ep->maxpacket);
		680	USBx_OUTEP(epnum)->DOEPTSIZ \|= (USB_OTG_DOEPTSIZ_PKTCNT & (1U << 19));
		681	}
		682	else
		683	{
		684	pktcnt = (uint16_t)((ep->xfer_len + ep->maxpacket - 1U) / ep->maxpacket);
		685	USBx_OUTEP(epnum)->DOEPTSIZ \|= USB_OTG_DOEPTSIZ_PKTCNT & ((uint32_t)pktcnt << 19);
		686	USBx_OUTEP(epnum)->DOEPTSIZ \|= USB_OTG_DOEPTSIZ_XFRSIZ & (ep->maxpacket * pktcnt);
		687	}
		688
		689	if (ep->type == EP_TYPE_ISOC)
		690	{
		691	if ((USBx_DEVICE->DSTS & (1U << 8)) == 0U)
		692	{
		693	USBx_OUTEP(epnum)->DOEPCTL \|= USB_OTG_DOEPCTL_SODDFRM;
		694	}
		695	else
		696	{
		697	USBx_OUTEP(epnum)->DOEPCTL \|= USB_OTG_DOEPCTL_SD0PID_SEVNFRM;
		698	}
		699	}
		700	/* EP enable */
		701	USBx_OUTEP(epnum)->DOEPCTL \|= (USB_OTG_DOEPCTL_CNAK \| USB_OTG_DOEPCTL_EPENA);
		702	}
		703
		704	return HAL_OK;
		705	}
		706
		707	/**
		708	* @brief USB_EP0StartXfer : setup and starts a transfer over the EP 0
		709	* @param USBx Selected device
		710	* @param ep pointer to endpoint structure
		711	* @retval HAL status
		712	*/
		713	HAL_StatusTypeDef USB_EP0StartXfer(USB_OTG_GlobalTypeDef USBx, USB_OTG_EPTypeDef ep)
		714	{
		715	uint32_t USBx_BASE = (uint32_t)USBx;
		716	uint32_t epnum = (uint32_t)ep->num;
		717
		718	/* IN endpoint */
		719	if (ep->is_in == 1U)
		720	{
		721	/* Zero Length Packet? */
		722	if (ep->xfer_len == 0U)
		723	{
		724	USBx_INEP(epnum)->DIEPTSIZ &= ~(USB_OTG_DIEPTSIZ_PKTCNT);
		725	USBx_INEP(epnum)->DIEPTSIZ \|= (USB_OTG_DIEPTSIZ_PKTCNT & (1U << 19));
		726	USBx_INEP(epnum)->DIEPTSIZ &= ~(USB_OTG_DIEPTSIZ_XFRSIZ);
		727	}
		728	else
		729	{
		730	/* Program the transfer size and packet count
		731	* as follows: xfersize = N * maxpacket +
		732	* short_packet pktcnt = N + (short_packet
		733	* exist ? 1 : 0)
		734	*/
		735	USBx_INEP(epnum)->DIEPTSIZ &= ~(USB_OTG_DIEPTSIZ_XFRSIZ);
		736	USBx_INEP(epnum)->DIEPTSIZ &= ~(USB_OTG_DIEPTSIZ_PKTCNT);
		737
		738	if (ep->xfer_len > ep->maxpacket)
		739	{
		740	ep->xfer_len = ep->maxpacket;
		741	}
		742	USBx_INEP(epnum)->DIEPTSIZ \|= (USB_OTG_DIEPTSIZ_PKTCNT & (1U << 19));
		743	USBx_INEP(epnum)->DIEPTSIZ \|= (USB_OTG_DIEPTSIZ_XFRSIZ & ep->xfer_len);
		744	}
		745
		746	/* EP enable, IN data in FIFO */
		747	USBx_INEP(epnum)->DIEPCTL \|= (USB_OTG_DIEPCTL_CNAK \| USB_OTG_DIEPCTL_EPENA);
		748
		749	/* Enable the Tx FIFO Empty Interrupt for this EP */
		750	if (ep->xfer_len > 0U)
		751	{
		752	USBx_DEVICE->DIEPEMPMSK \|= 1UL << (ep->num & EP_ADDR_MSK);
		753	}
		754	}
		755	else /* OUT endpoint */
		756	{
		757	/* Program the transfer size and packet count as follows:
		758	* pktcnt = N
		759	* xfersize = N * maxpacket
		760	*/
		761	USBx_OUTEP(epnum)->DOEPTSIZ &= ~(USB_OTG_DOEPTSIZ_XFRSIZ);
		762	USBx_OUTEP(epnum)->DOEPTSIZ &= ~(USB_OTG_DOEPTSIZ_PKTCNT);
		763
		764	if (ep->xfer_len > 0U)
		765	{
		766	ep->xfer_len = ep->maxpacket;
		767	}
		768
		769	USBx_OUTEP(epnum)->DOEPTSIZ \|= (USB_OTG_DOEPTSIZ_PKTCNT & (1U << 19));
		770	USBx_OUTEP(epnum)->DOEPTSIZ \|= (USB_OTG_DOEPTSIZ_XFRSIZ & (ep->maxpacket));
		771
		772	/* EP enable */
		773	USBx_OUTEP(epnum)->DOEPCTL \|= (USB_OTG_DOEPCTL_CNAK \| USB_OTG_DOEPCTL_EPENA);
		774	}
		775
		776	return HAL_OK;
		777	}
		778
		779	/**
		780	* @brief USB_WritePacket : Writes a packet into the Tx FIFO associated
		781	* with the EP/channel
		782	* @param USBx Selected device
		783	* @param src pointer to source buffer
		784	* @param ch_ep_num endpoint or host channel number
		785	* @param len Number of bytes to write
		786	* @retval HAL status
		787	*/
		788	HAL_StatusTypeDef USB_WritePacket(USB_OTG_GlobalTypeDef USBx, uint8_t src, uint8_t ch_ep_num, uint16_t len)
		789	{
		790	uint32_t USBx_BASE = (uint32_t)USBx;
		791	uint32_t pSrc = (uint32_t )src;
		792	uint32_t count32b, i;
		793
		794	count32b = ((uint32_t)len + 3U) / 4U;
		795	for (i = 0U; i < count32b; i++)
		796	{
		797	USBx_DFIFO((uint32_t)ch_ep_num) = __UNALIGNED_UINT32_READ(pSrc);
		798	pSrc++;
		799	}
		800
		801	return HAL_OK;
		802	}
		803
		804	/**
		805	* @brief USB_ReadPacket : read a packet from the RX FIFO
		806	* @param USBx Selected device
		807	* @param dest source pointer
		808	* @param len Number of bytes to read
		809	* @retval pointer to destination buffer
		810	*/
		811	void USB_ReadPacket(USB_OTG_GlobalTypeDef USBx, uint8_t *dest, uint16_t len)
		812	{
		813	uint32_t USBx_BASE = (uint32_t)USBx;
		814	uint32_t pDest = (uint32_t )dest;
		815	uint32_t i;
		816	uint32_t count32b = ((uint32_t)len + 3U) / 4U;
		817
		818	for (i = 0U; i < count32b; i++)
		819	{
		820	__UNALIGNED_UINT32_WRITE(pDest, USBx_DFIFO(0U));
		821	pDest++;
		822	}
		823
		824	return ((void *)pDest);
		825	}
		826
		827	/**
		828	* @brief USB_EPSetStall : set a stall condition over an EP
		829	* @param USBx Selected device
		830	* @param ep pointer to endpoint structure
		831	* @retval HAL status
		832	*/
		833	HAL_StatusTypeDef USB_EPSetStall(USB_OTG_GlobalTypeDef USBx, USB_OTG_EPTypeDef ep)
		834	{
		835	uint32_t USBx_BASE = (uint32_t)USBx;
		836	uint32_t epnum = (uint32_t)ep->num;
		837
		838	if (ep->is_in == 1U)
		839	{
		840	if (((USBx_INEP(epnum)->DIEPCTL & USB_OTG_DIEPCTL_EPENA) == 0U) && (epnum != 0U))
		841	{
		842	USBx_INEP(epnum)->DIEPCTL &= ~(USB_OTG_DIEPCTL_EPDIS);
		843	}
		844	USBx_INEP(epnum)->DIEPCTL \|= USB_OTG_DIEPCTL_STALL;
		845	}
		846	else
		847	{
		848	if (((USBx_OUTEP(epnum)->DOEPCTL & USB_OTG_DOEPCTL_EPENA) == 0U) && (epnum != 0U))
		849	{
		850	USBx_OUTEP(epnum)->DOEPCTL &= ~(USB_OTG_DOEPCTL_EPDIS);
		851	}
		852	USBx_OUTEP(epnum)->DOEPCTL \|= USB_OTG_DOEPCTL_STALL;
		853	}
		854
		855	return HAL_OK;
		856	}
		857
		858	/**
		859	* @brief USB_EPClearStall : Clear a stall condition over an EP
		860	* @param USBx Selected device
		861	* @param ep pointer to endpoint structure
		862	* @retval HAL status
		863	*/
		864	HAL_StatusTypeDef USB_EPClearStall(USB_OTG_GlobalTypeDef USBx, USB_OTG_EPTypeDef ep)
		865	{
		866	uint32_t USBx_BASE = (uint32_t)USBx;
		867	uint32_t epnum = (uint32_t)ep->num;
		868
		869	if (ep->is_in == 1U)
		870	{
		871	USBx_INEP(epnum)->DIEPCTL &= ~USB_OTG_DIEPCTL_STALL;
		872	if ((ep->type == EP_TYPE_INTR) \|\| (ep->type == EP_TYPE_BULK))
		873	{
		874	USBx_INEP(epnum)->DIEPCTL \|= USB_OTG_DIEPCTL_SD0PID_SEVNFRM; /* DATA0 */
		875	}
		876	}
		877	else
		878	{
		879	USBx_OUTEP(epnum)->DOEPCTL &= ~USB_OTG_DOEPCTL_STALL;
		880	if ((ep->type == EP_TYPE_INTR) \|\| (ep->type == EP_TYPE_BULK))
		881	{
		882	USBx_OUTEP(epnum)->DOEPCTL \|= USB_OTG_DOEPCTL_SD0PID_SEVNFRM; /* DATA0 */
		883	}
		884	}
		885	return HAL_OK;
		886	}
		887
		888	/**
		889	* @brief USB_StopDevice : Stop the usb device mode
		890	* @param USBx Selected device
		891	* @retval HAL status
		892	*/
		893	HAL_StatusTypeDef USB_StopDevice(USB_OTG_GlobalTypeDef *USBx)
		894	{
		895	HAL_StatusTypeDef ret;
		896	uint32_t USBx_BASE = (uint32_t)USBx;
		897	uint32_t i;
		898
		899	/* Clear Pending interrupt */
		900	for (i = 0U; i < 15U; i++)
		901	{
		902	USBx_INEP(i)->DIEPINT = 0xFB7FU;
		903	USBx_OUTEP(i)->DOEPINT = 0xFB7FU;
		904	}
		905
		906	/* Clear interrupt masks */
		907	USBx_DEVICE->DIEPMSK = 0U;
		908	USBx_DEVICE->DOEPMSK = 0U;
		909	USBx_DEVICE->DAINTMSK = 0U;
		910
		911	/* Flush the FIFO */
		912	ret = USB_FlushRxFifo(USBx);
		913	if (ret != HAL_OK)
		914	{
		915	return ret;
		916	}
		917
		918	ret = USB_FlushTxFifo(USBx, 0x10U);
		919	if (ret != HAL_OK)
		920	{
		921	return ret;
		922	}
		923
		924	return ret;
		925	}
		926
		927	/**
		928	* @brief USB_SetDevAddress : Stop the usb device mode
		929	* @param USBx Selected device
		930	* @param address new device address to be assigned
		931	* This parameter can be a value from 0 to 255
		932	* @retval HAL status
		933	*/
		934	HAL_StatusTypeDef USB_SetDevAddress(USB_OTG_GlobalTypeDef *USBx, uint8_t address)
		935	{
		936	uint32_t USBx_BASE = (uint32_t)USBx;
		937
		938	USBx_DEVICE->DCFG &= ~(USB_OTG_DCFG_DAD);
		939	USBx_DEVICE->DCFG \|= ((uint32_t)address << 4) & USB_OTG_DCFG_DAD;
		940
		941	return HAL_OK;
		942	}
		943
		944	/**
		945	* @brief USB_DevConnect : Connect the USB device by enabling the pull-up/pull-down
		946	* @param USBx Selected device
		947	* @retval HAL status
		948	*/
		949	HAL_StatusTypeDef USB_DevConnect(USB_OTG_GlobalTypeDef *USBx)
		950	{
		951	uint32_t USBx_BASE = (uint32_t)USBx;
		952
		953	USBx_DEVICE->DCTL &= ~USB_OTG_DCTL_SDIS;
		954	HAL_Delay(3U);
		955
		956	return HAL_OK;
		957	}
		958
		959	/**
		960	* @brief USB_DevDisconnect : Disconnect the USB device by disabling the pull-up/pull-down
		961	* @param USBx Selected device
		962	* @retval HAL status
		963	*/
		964	HAL_StatusTypeDef USB_DevDisconnect(USB_OTG_GlobalTypeDef *USBx)
		965	{
		966	uint32_t USBx_BASE = (uint32_t)USBx;
		967
		968	USBx_DEVICE->DCTL \|= USB_OTG_DCTL_SDIS;
		969	HAL_Delay(3U);
		970
		971	return HAL_OK;
		972	}
		973
		974	/**
		975	* @brief USB_ReadInterrupts: return the global USB interrupt status
		976	* @param USBx Selected device
		977	* @retval HAL status
		978	*/
		979	uint32_t USB_ReadInterrupts(USB_OTG_GlobalTypeDef *USBx)
		980	{
		981	uint32_t tmpreg;
		982
		983	tmpreg = USBx->GINTSTS;
		984	tmpreg &= USBx->GINTMSK;
		985
		986	return tmpreg;
		987	}
		988
		989	/**
		990	* @brief USB_ReadDevAllOutEpInterrupt: return the USB device OUT endpoints interrupt status
		991	* @param USBx Selected device
		992	* @retval HAL status
		993	*/
		994	uint32_t USB_ReadDevAllOutEpInterrupt(USB_OTG_GlobalTypeDef *USBx)
		995	{
		996	uint32_t USBx_BASE = (uint32_t)USBx;
		997	uint32_t tmpreg;
		998
		999	tmpreg = USBx_DEVICE->DAINT;
		1000	tmpreg &= USBx_DEVICE->DAINTMSK;
		1001
		1002	return ((tmpreg & 0xffff0000U) >> 16);
		1003	}
		1004
		1005	/**
		1006	* @brief USB_ReadDevAllInEpInterrupt: return the USB device IN endpoints interrupt status
		1007	* @param USBx Selected device
		1008	* @retval HAL status
		1009	*/
		1010	uint32_t USB_ReadDevAllInEpInterrupt(USB_OTG_GlobalTypeDef *USBx)
		1011	{
		1012	uint32_t USBx_BASE = (uint32_t)USBx;
		1013	uint32_t tmpreg;
		1014
		1015	tmpreg = USBx_DEVICE->DAINT;
		1016	tmpreg &= USBx_DEVICE->DAINTMSK;
		1017
		1018	return ((tmpreg & 0xFFFFU));
		1019	}
		1020
		1021	/**
		1022	* @brief Returns Device OUT EP Interrupt register
		1023	* @param USBx Selected device
		1024	* @param epnum endpoint number
		1025	* This parameter can be a value from 0 to 15
		1026	* @retval Device OUT EP Interrupt register
		1027	*/
		1028	uint32_t USB_ReadDevOutEPInterrupt(USB_OTG_GlobalTypeDef *USBx, uint8_t epnum)
		1029	{
		1030	uint32_t USBx_BASE = (uint32_t)USBx;
		1031	uint32_t tmpreg;
		1032
		1033	tmpreg = USBx_OUTEP((uint32_t)epnum)->DOEPINT;
		1034	tmpreg &= USBx_DEVICE->DOEPMSK;
		1035
		1036	return tmpreg;
		1037	}
		1038
		1039	/**
		1040	* @brief Returns Device IN EP Interrupt register
		1041	* @param USBx Selected device
		1042	* @param epnum endpoint number
		1043	* This parameter can be a value from 0 to 15
		1044	* @retval Device IN EP Interrupt register
		1045	*/
		1046	uint32_t USB_ReadDevInEPInterrupt(USB_OTG_GlobalTypeDef *USBx, uint8_t epnum)
		1047	{
		1048	uint32_t USBx_BASE = (uint32_t)USBx;
		1049	uint32_t tmpreg, msk, emp;
		1050
		1051	msk = USBx_DEVICE->DIEPMSK;
		1052	emp = USBx_DEVICE->DIEPEMPMSK;
		1053	msk \|= ((emp >> (epnum & EP_ADDR_MSK)) & 0x1U) << 7;
		1054	tmpreg = USBx_INEP((uint32_t)epnum)->DIEPINT & msk;
		1055
		1056	return tmpreg;
		1057	}
		1058
		1059	/**
		1060	* @brief USB_ClearInterrupts: clear a USB interrupt
		1061	* @param USBx Selected device
		1062	* @param interrupt interrupt flag
		1063	* @retval None
		1064	*/
		1065	void USB_ClearInterrupts(USB_OTG_GlobalTypeDef *USBx, uint32_t interrupt)
		1066	{
		1067	USBx->GINTSTS \|= interrupt;
		1068	}
		1069
		1070	/**
		1071	* @brief Returns USB core mode
		1072	* @param USBx Selected device
		1073	* @retval return core mode : Host or Device
		1074	* This parameter can be one of these values:
		1075	* 0 : Host
		1076	* 1 : Device
		1077	*/
		1078	uint32_t USB_GetMode(USB_OTG_GlobalTypeDef *USBx)
		1079	{
		1080	return ((USBx->GINTSTS) & 0x1U);
		1081	}
		1082
		1083	/**
		1084	* @brief Activate EP0 for Setup transactions
		1085	* @param USBx Selected device
		1086	* @retval HAL status
		1087	*/
		1088	HAL_StatusTypeDef USB_ActivateSetup(USB_OTG_GlobalTypeDef *USBx)
		1089	{
		1090	uint32_t USBx_BASE = (uint32_t)USBx;
		1091
		1092	/* Set the MPS of the IN EP0 to 64 bytes */
		1093	USBx_INEP(0U)->DIEPCTL &= ~USB_OTG_DIEPCTL_MPSIZ;
		1094
		1095	USBx_DEVICE->DCTL \|= USB_OTG_DCTL_CGINAK;
		1096
		1097	return HAL_OK;
		1098	}
		1099
		1100	/**
		1101	* @brief Prepare the EP0 to start the first control setup
		1102	* @param USBx Selected device
		1103	* @param psetup pointer to setup packet
		1104	* @retval HAL status
		1105	*/
		1106	HAL_StatusTypeDef USB_EP0_OutStart(USB_OTG_GlobalTypeDef USBx, uint8_t psetup)
		1107	{
		1108	UNUSED(psetup);
		1109	uint32_t USBx_BASE = (uint32_t)USBx;
		1110	uint32_t gSNPSiD = (__IO uint32_t )(&USBx->CID + 0x1U);
		1111
		1112	if (gSNPSiD > USB_OTG_CORE_ID_300A)
		1113	{
		1114	if ((USBx_OUTEP(0U)->DOEPCTL & USB_OTG_DOEPCTL_EPENA) == USB_OTG_DOEPCTL_EPENA)
		1115	{
		1116	return HAL_OK;
		1117	}
		1118	}
		1119
		1120	USBx_OUTEP(0U)->DOEPTSIZ = 0U;
		1121	USBx_OUTEP(0U)->DOEPTSIZ \|= (USB_OTG_DOEPTSIZ_PKTCNT & (1U << 19));
		1122	USBx_OUTEP(0U)->DOEPTSIZ \|= (3U * 8U);
		1123	USBx_OUTEP(0U)->DOEPTSIZ \|= USB_OTG_DOEPTSIZ_STUPCNT;
		1124
		1125	return HAL_OK;
		1126	}
		1127
		1128	/**
		1129	* @brief Reset the USB Core (needed after USB clock settings change)
		1130	* @param USBx Selected device
		1131	* @retval HAL status
		1132	*/
		1133	static HAL_StatusTypeDef USB_CoreReset(USB_OTG_GlobalTypeDef *USBx)
		1134	{
		1135	uint32_t count = 0U;
		1136
		1137	/* Wait for AHB master IDLE state. */
		1138	do
		1139	{
		1140	if (++count > 200000U)
		1141	{
		1142	return HAL_TIMEOUT;
		1143	}
		1144	}
		1145	while ((USBx->GRSTCTL & USB_OTG_GRSTCTL_AHBIDL) == 0U);
		1146
		1147	/* Core Soft Reset */
		1148	count = 0U;
		1149	USBx->GRSTCTL \|= USB_OTG_GRSTCTL_CSRST;
		1150
		1151	do
		1152	{
		1153	if (++count > 200000U)
		1154	{
		1155	return HAL_TIMEOUT;
		1156	}
		1157	}
		1158	while ((USBx->GRSTCTL & USB_OTG_GRSTCTL_CSRST) == USB_OTG_GRSTCTL_CSRST);
		1159
		1160	return HAL_OK;
		1161	}
		1162
		1163	/**
		1164	* @brief USB_HostInit : Initializes the USB OTG controller registers
		1165	* for Host mode
		1166	* @param USBx Selected device
		1167	* @param cfg pointer to a USB_OTG_CfgTypeDef structure that contains
		1168	* the configuration information for the specified USBx peripheral.
		1169	* @retval HAL status
		1170	*/
		1171	HAL_StatusTypeDef USB_HostInit(USB_OTG_GlobalTypeDef *USBx, USB_OTG_CfgTypeDef cfg)
		1172	{
		1173	uint32_t USBx_BASE = (uint32_t)USBx;
		1174	uint32_t i;
		1175
		1176	/* Restart the Phy Clock */
		1177	USBx_PCGCCTL = 0U;
		1178
		1179	/* Disable VBUS sensing */
		1180	USBx->GCCFG &= ~(USB_OTG_GCCFG_VBUSASEN);
		1181	USBx->GCCFG &= ~(USB_OTG_GCCFG_VBUSBSEN);
		1182	/* Set default Max speed support */
		1183	USBx_HOST->HCFG &= ~(USB_OTG_HCFG_FSLSS);
		1184
		1185	/* Make sure the FIFOs are flushed. */
		1186	(void)USB_FlushTxFifo(USBx, 0x10U); /* all Tx FIFOs */
		1187	(void)USB_FlushRxFifo(USBx);
		1188
		1189	/* Clear all pending HC Interrupts */
		1190	for (i = 0U; i < cfg.Host_channels; i++)
		1191	{
		1192	USBx_HC(i)->HCINT = 0xFFFFFFFFU;
		1193	USBx_HC(i)->HCINTMSK = 0U;
		1194	}
		1195
		1196	/* Enable VBUS driving */
		1197	(void)USB_DriveVbus(USBx, 1U);
		1198
		1199	HAL_Delay(200U);
		1200
		1201	/* Disable all interrupts. */
		1202	USBx->GINTMSK = 0U;
		1203
		1204	/* Clear any pending interrupts */
		1205	USBx->GINTSTS = 0xFFFFFFFFU;
		1206
		1207	/* set Rx FIFO size */
		1208	USBx->GRXFSIZ = 0x80U;
		1209	USBx->DIEPTXF0_HNPTXFSIZ = (uint32_t)(((0x60U << 16) & USB_OTG_NPTXFD) \| 0x80U);
		1210	USBx->HPTXFSIZ = (uint32_t)(((0x40U << 16)& USB_OTG_HPTXFSIZ_PTXFD) \| 0xE0U);
		1211	/* Enable the common interrupts */
		1212	USBx->GINTMSK \|= USB_OTG_GINTMSK_RXFLVLM;
		1213
		1214	/* Enable interrupts matching to the Host mode ONLY */
		1215	USBx->GINTMSK \|= (USB_OTG_GINTMSK_PRTIM \| USB_OTG_GINTMSK_HCIM \| \
		1216	USB_OTG_GINTMSK_SOFM \| USB_OTG_GINTSTS_DISCINT \| \
		1217	USB_OTG_GINTMSK_PXFRM_IISOOXFRM \| USB_OTG_GINTMSK_WUIM);
		1218
		1219	return HAL_OK;
		1220	}
		1221
		1222	/**
		1223	* @brief USB_InitFSLSPClkSel : Initializes the FSLSPClkSel field of the
		1224	* HCFG register on the PHY type and set the right frame interval
		1225	* @param USBx Selected device
		1226	* @param freq clock frequency
		1227	* This parameter can be one of these values:
		1228	* HCFG_48_MHZ : Full Speed 48 MHz Clock
		1229	* HCFG_6_MHZ : Low Speed 6 MHz Clock
		1230	* @retval HAL status
		1231	*/
		1232	HAL_StatusTypeDef USB_InitFSLSPClkSel(USB_OTG_GlobalTypeDef *USBx, uint8_t freq)
		1233	{
		1234	uint32_t USBx_BASE = (uint32_t)USBx;
		1235
		1236	USBx_HOST->HCFG &= ~(USB_OTG_HCFG_FSLSPCS);
		1237	USBx_HOST->HCFG \|= (uint32_t)freq & USB_OTG_HCFG_FSLSPCS;
		1238
		1239	if (freq == HCFG_48_MHZ)
		1240	{
		1241	USBx_HOST->HFIR = 48000U;
		1242	}
		1243	else if (freq == HCFG_6_MHZ)
		1244	{
		1245	USBx_HOST->HFIR = 6000U;
		1246	}
		1247	else
		1248	{
		1249	/* ... */
		1250	}
		1251
		1252	return HAL_OK;
		1253	}
		1254
		1255	/**
		1256	* @brief USB_OTG_ResetPort : Reset Host Port
		1257	* @param USBx Selected device
		1258	* @retval HAL status
		1259	* @note (1)The application must wait at least 10 ms
		1260	* before clearing the reset bit.
		1261	*/
		1262	HAL_StatusTypeDef USB_ResetPort(USB_OTG_GlobalTypeDef *USBx)
		1263	{
		1264	uint32_t USBx_BASE = (uint32_t)USBx;
		1265
		1266	__IO uint32_t hprt0 = 0U;
		1267
		1268	hprt0 = USBx_HPRT0;
		1269
		1270	hprt0 &= ~(USB_OTG_HPRT_PENA \| USB_OTG_HPRT_PCDET \|
		1271	USB_OTG_HPRT_PENCHNG \| USB_OTG_HPRT_POCCHNG);
		1272
		1273	USBx_HPRT0 = (USB_OTG_HPRT_PRST \| hprt0);
		1274	HAL_Delay(100U); /* See Note #1 */
		1275	USBx_HPRT0 = ((~USB_OTG_HPRT_PRST) & hprt0);
		1276	HAL_Delay(10U);
		1277
		1278	return HAL_OK;
		1279	}
		1280
		1281	/**
		1282	* @brief USB_DriveVbus : activate or de-activate vbus
		1283	* @param state VBUS state
		1284	* This parameter can be one of these values:
		1285	* 0 : VBUS Active
		1286	* 1 : VBUS Inactive
		1287	* @retval HAL status
		1288	*/
		1289	HAL_StatusTypeDef USB_DriveVbus(USB_OTG_GlobalTypeDef *USBx, uint8_t state)
		1290	{
		1291	uint32_t USBx_BASE = (uint32_t)USBx;
		1292	__IO uint32_t hprt0 = 0U;
		1293
		1294	hprt0 = USBx_HPRT0;
		1295
		1296	hprt0 &= ~(USB_OTG_HPRT_PENA \| USB_OTG_HPRT_PCDET \|
		1297	USB_OTG_HPRT_PENCHNG \| USB_OTG_HPRT_POCCHNG);
		1298
		1299	if (((hprt0 & USB_OTG_HPRT_PPWR) == 0U) && (state == 1U))
		1300	{
		1301	USBx_HPRT0 = (USB_OTG_HPRT_PPWR \| hprt0);
		1302	}
		1303	if (((hprt0 & USB_OTG_HPRT_PPWR) == USB_OTG_HPRT_PPWR) && (state == 0U))
		1304	{
		1305	USBx_HPRT0 = ((~USB_OTG_HPRT_PPWR) & hprt0);
		1306	}
		1307	return HAL_OK;
		1308	}
		1309
		1310	/**
		1311	* @brief Return Host Core speed
		1312	* @param USBx Selected device
		1313	* @retval speed : Host speed
		1314	* This parameter can be one of these values:
		1315	* @arg HCD_SPEED_FULL: Full speed mode
		1316	* @arg HCD_SPEED_LOW: Low speed mode
		1317	*/
		1318	uint32_t USB_GetHostSpeed(USB_OTG_GlobalTypeDef *USBx)
		1319	{
		1320	uint32_t USBx_BASE = (uint32_t)USBx;
		1321	__IO uint32_t hprt0 = 0U;
		1322
		1323	hprt0 = USBx_HPRT0;
		1324	return ((hprt0 & USB_OTG_HPRT_PSPD) >> 17);
		1325	}
		1326
		1327	/**
		1328	* @brief Return Host Current Frame number
		1329	* @param USBx Selected device
		1330	* @retval current frame number
		1331	*/
		1332	uint32_t USB_GetCurrentFrame(USB_OTG_GlobalTypeDef *USBx)
		1333	{
		1334	uint32_t USBx_BASE = (uint32_t)USBx;
		1335
		1336	return (USBx_HOST->HFNUM & USB_OTG_HFNUM_FRNUM);
		1337	}
		1338
		1339	/**
		1340	* @brief Initialize a host channel
		1341	* @param USBx Selected device
		1342	* @param ch_num Channel number
		1343	* This parameter can be a value from 1 to 15
		1344	* @param epnum Endpoint number
		1345	* This parameter can be a value from 1 to 15
		1346	* @param dev_address Current device address
		1347	* This parameter can be a value from 0 to 255
		1348	* @param speed Current device speed
		1349	* This parameter can be one of these values:
		1350	* @arg USB_OTG_SPEED_FULL: Full speed mode
		1351	* @arg USB_OTG_SPEED_LOW: Low speed mode
		1352	* @param ep_type Endpoint Type
		1353	* This parameter can be one of these values:
		1354	* @arg EP_TYPE_CTRL: Control type
		1355	* @arg EP_TYPE_ISOC: Isochronous type
		1356	* @arg EP_TYPE_BULK: Bulk type
		1357	* @arg EP_TYPE_INTR: Interrupt type
		1358	* @param mps Max Packet Size
		1359	* This parameter can be a value from 0 to32K
		1360	* @retval HAL state
		1361	*/
		1362	HAL_StatusTypeDef USB_HC_Init(USB_OTG_GlobalTypeDef *USBx,
		1363	uint8_t ch_num,
		1364	uint8_t epnum,
		1365	uint8_t dev_address,
		1366	uint8_t speed,
		1367	uint8_t ep_type,
		1368	uint16_t mps)
		1369	{
		1370	HAL_StatusTypeDef ret = HAL_OK;
		1371	uint32_t USBx_BASE = (uint32_t)USBx;
		1372	uint32_t HCcharEpDir, HCcharLowSpeed;
		1373
		1374	/* Clear old interrupt conditions for this host channel. */
		1375	USBx_HC((uint32_t)ch_num)->HCINT = 0xFFFFFFFFU;
		1376
		1377	/* Enable channel interrupts required for this transfer. */
		1378	switch (ep_type)
		1379	{
		1380	case EP_TYPE_CTRL:
		1381	case EP_TYPE_BULK:
		1382	USBx_HC((uint32_t)ch_num)->HCINTMSK = USB_OTG_HCINTMSK_XFRCM \|
		1383	USB_OTG_HCINTMSK_STALLM \|
		1384	USB_OTG_HCINTMSK_TXERRM \|
		1385	USB_OTG_HCINTMSK_DTERRM \|
		1386	USB_OTG_HCINTMSK_AHBERR \|
		1387	USB_OTG_HCINTMSK_NAKM;
		1388
		1389	if ((epnum & 0x80U) == 0x80U)
		1390	{
		1391	USBx_HC((uint32_t)ch_num)->HCINTMSK \|= USB_OTG_HCINTMSK_BBERRM;
		1392	}
		1393	break;
		1394
		1395	case EP_TYPE_INTR:
		1396	USBx_HC((uint32_t)ch_num)->HCINTMSK = USB_OTG_HCINTMSK_XFRCM \|
		1397	USB_OTG_HCINTMSK_STALLM \|
		1398	USB_OTG_HCINTMSK_TXERRM \|
		1399	USB_OTG_HCINTMSK_DTERRM \|
		1400	USB_OTG_HCINTMSK_NAKM \|
		1401	USB_OTG_HCINTMSK_AHBERR \|
		1402	USB_OTG_HCINTMSK_FRMORM;
		1403
		1404	if ((epnum & 0x80U) == 0x80U)
		1405	{
		1406	USBx_HC((uint32_t)ch_num)->HCINTMSK \|= USB_OTG_HCINTMSK_BBERRM;
		1407	}
		1408
		1409	break;
		1410
		1411	case EP_TYPE_ISOC:
		1412	USBx_HC((uint32_t)ch_num)->HCINTMSK = USB_OTG_HCINTMSK_XFRCM \|
		1413	USB_OTG_HCINTMSK_ACKM \|
		1414	USB_OTG_HCINTMSK_AHBERR \|
		1415	USB_OTG_HCINTMSK_FRMORM;
		1416
		1417	if ((epnum & 0x80U) == 0x80U)
		1418	{
		1419	USBx_HC((uint32_t)ch_num)->HCINTMSK \|= (USB_OTG_HCINTMSK_TXERRM \| USB_OTG_HCINTMSK_BBERRM);
		1420	}
		1421	break;
		1422
		1423	default:
		1424	ret = HAL_ERROR;
		1425	break;
		1426	}
		1427
		1428	/* Enable the top level host channel interrupt. */
		1429	USBx_HOST->HAINTMSK \|= 1UL << (ch_num & 0xFU);
		1430
		1431	/* Make sure host channel interrupts are enabled. */
		1432	USBx->GINTMSK \|= USB_OTG_GINTMSK_HCIM;
		1433
		1434	/* Program the HCCHAR register */
		1435	if ((epnum & 0x80U) == 0x80U)
		1436	{
		1437	HCcharEpDir = (0x1U << 15) & USB_OTG_HCCHAR_EPDIR;
		1438	}
		1439	else
		1440	{
		1441	HCcharEpDir = 0U;
		1442	}
		1443
		1444	if (speed == HPRT0_PRTSPD_LOW_SPEED)
		1445	{
		1446	HCcharLowSpeed = (0x1U << 17) & USB_OTG_HCCHAR_LSDEV;
		1447	}
		1448	else
		1449	{
		1450	HCcharLowSpeed = 0U;
		1451	}
		1452
		1453	USBx_HC((uint32_t)ch_num)->HCCHAR = (((uint32_t)dev_address << 22) & USB_OTG_HCCHAR_DAD) \|
		1454	((((uint32_t)epnum & 0x7FU) << 11) & USB_OTG_HCCHAR_EPNUM) \|
		1455	(((uint32_t)ep_type << 18) & USB_OTG_HCCHAR_EPTYP) \|
		1456	((uint32_t)mps & USB_OTG_HCCHAR_MPSIZ) \| HCcharEpDir \| HCcharLowSpeed;
		1457
		1458	if (ep_type == EP_TYPE_INTR)
		1459	{
		1460	USBx_HC((uint32_t)ch_num)->HCCHAR \|= USB_OTG_HCCHAR_ODDFRM ;
		1461	}
		1462
		1463	return ret;
		1464	}
		1465
		1466	/**
		1467	* @brief Start a transfer over a host channel
		1468	* @param USBx Selected device
		1469	* @param hc pointer to host channel structure
		1470	* @retval HAL state
		1471	*/
		1472	HAL_StatusTypeDef USB_HC_StartXfer(USB_OTG_GlobalTypeDef USBx, USB_OTG_HCTypeDef hc)
		1473	{
		1474	uint32_t USBx_BASE = (uint32_t)USBx;
		1475	uint32_t ch_num = (uint32_t)hc->ch_num;
		1476	static __IO uint32_t tmpreg = 0U;
		1477	uint8_t is_oddframe;
		1478	uint16_t len_words;
		1479	uint16_t num_packets;
		1480	uint16_t max_hc_pkt_count = 256U;
		1481
		1482	/* Compute the expected number of packets associated to the transfer */
		1483	if (hc->xfer_len > 0U)
		1484	{
		1485	num_packets = (uint16_t)((hc->xfer_len + hc->max_packet - 1U) / hc->max_packet);
		1486
		1487	if (num_packets > max_hc_pkt_count)
		1488	{
		1489	num_packets = max_hc_pkt_count;
		1490	hc->xfer_len = (uint32_t)num_packets * hc->max_packet;
		1491	}
		1492	}
		1493	else
		1494	{
		1495	num_packets = 1U;
		1496	}
		1497	if (hc->ep_is_in != 0U)
		1498	{
		1499	hc->xfer_len = (uint32_t)num_packets * hc->max_packet;
		1500	}
		1501
		1502	/* Initialize the HCTSIZn register */
		1503	USBx_HC(ch_num)->HCTSIZ = (hc->xfer_len & USB_OTG_HCTSIZ_XFRSIZ) \|
		1504	(((uint32_t)num_packets << 19) & USB_OTG_HCTSIZ_PKTCNT) \|
		1505	(((uint32_t)hc->data_pid << 29) & USB_OTG_HCTSIZ_DPID);
		1506
		1507	is_oddframe = (((uint32_t)USBx_HOST->HFNUM & 0x01U) != 0U) ? 0U : 1U;
		1508	USBx_HC(ch_num)->HCCHAR &= ~USB_OTG_HCCHAR_ODDFRM;
		1509	USBx_HC(ch_num)->HCCHAR \|= (uint32_t)is_oddframe << 29;
		1510
		1511	/* Set host channel enable */
		1512	tmpreg = USBx_HC(ch_num)->HCCHAR;
		1513	tmpreg &= ~USB_OTG_HCCHAR_CHDIS;
		1514
		1515	/* make sure to set the correct ep direction */
		1516	if (hc->ep_is_in != 0U)
		1517	{
		1518	tmpreg \|= USB_OTG_HCCHAR_EPDIR;
		1519	}
		1520	else
		1521	{
		1522	tmpreg &= ~USB_OTG_HCCHAR_EPDIR;
		1523	}
		1524	tmpreg \|= USB_OTG_HCCHAR_CHENA;
		1525	USBx_HC(ch_num)->HCCHAR = tmpreg;
		1526
		1527	if ((hc->ep_is_in == 0U) && (hc->xfer_len > 0U))
		1528	{
		1529	switch (hc->ep_type)
		1530	{
		1531	/* Non periodic transfer */
		1532	case EP_TYPE_CTRL:
		1533	case EP_TYPE_BULK:
		1534
		1535	len_words = (uint16_t)((hc->xfer_len + 3U) / 4U);
		1536
		1537	/* check if there is enough space in FIFO space */
		1538	if (len_words > (USBx->HNPTXSTS & 0xFFFFU))
		1539	{
		1540	/* need to process data in nptxfempty interrupt */
		1541	USBx->GINTMSK \|= USB_OTG_GINTMSK_NPTXFEM;
		1542	}
		1543	break;
		1544
		1545	/* Periodic transfer */
		1546	case EP_TYPE_INTR:
		1547	case EP_TYPE_ISOC:
		1548	len_words = (uint16_t)((hc->xfer_len + 3U) / 4U);
		1549	/* check if there is enough space in FIFO space */
		1550	if (len_words > (USBx_HOST->HPTXSTS & 0xFFFFU)) /* split the transfer */
		1551	{
		1552	/* need to process data in ptxfempty interrupt */
		1553	USBx->GINTMSK \|= USB_OTG_GINTMSK_PTXFEM;
		1554	}
		1555	break;
		1556
		1557	default:
		1558	break;
		1559	}
		1560
		1561	/* Write packet into the Tx FIFO. */
		1562	(void)USB_WritePacket(USBx, hc->xfer_buff, hc->ch_num, (uint16_t)hc->xfer_len);
		1563	}
		1564
		1565	return HAL_OK;
		1566	}
		1567
		1568	/**
		1569	* @brief Read all host channel interrupts status
		1570	* @param USBx Selected device
		1571	* @retval HAL state
		1572	*/
		1573	uint32_t USB_HC_ReadInterrupt(USB_OTG_GlobalTypeDef *USBx)
		1574	{
		1575	uint32_t USBx_BASE = (uint32_t)USBx;
		1576
		1577	return ((USBx_HOST->HAINT) & 0xFFFFU);
		1578	}
		1579
		1580	/**
		1581	* @brief Halt a host channel
		1582	* @param USBx Selected device
		1583	* @param hc_num Host Channel number
		1584	* This parameter can be a value from 1 to 15
		1585	* @retval HAL state
		1586	*/
		1587	HAL_StatusTypeDef USB_HC_Halt(USB_OTG_GlobalTypeDef *USBx, uint8_t hc_num)
		1588	{
		1589	uint32_t USBx_BASE = (uint32_t)USBx;
		1590	uint32_t hcnum = (uint32_t)hc_num;
		1591	uint32_t count = 0U;
		1592	uint32_t HcEpType = (USBx_HC(hcnum)->HCCHAR & USB_OTG_HCCHAR_EPTYP) >> 18;
		1593
		1594	/* Check for space in the request queue to issue the halt. */
		1595	if ((HcEpType == HCCHAR_CTRL) \|\| (HcEpType == HCCHAR_BULK))
		1596	{
		1597	USBx_HC(hcnum)->HCCHAR \|= USB_OTG_HCCHAR_CHDIS;
		1598
		1599	if ((USBx->HNPTXSTS & (0xFFU << 16)) == 0U)
		1600	{
		1601	USBx_HC(hcnum)->HCCHAR &= ~USB_OTG_HCCHAR_CHENA;
		1602	USBx_HC(hcnum)->HCCHAR \|= USB_OTG_HCCHAR_CHENA;
		1603	USBx_HC(hcnum)->HCCHAR &= ~USB_OTG_HCCHAR_EPDIR;
		1604	do
		1605	{
		1606	if (++count > 1000U)
		1607	{
		1608	break;
		1609	}
		1610	}
		1611	while ((USBx_HC(hcnum)->HCCHAR & USB_OTG_HCCHAR_CHENA) == USB_OTG_HCCHAR_CHENA);
		1612	}
		1613	else
		1614	{
		1615	USBx_HC(hcnum)->HCCHAR \|= USB_OTG_HCCHAR_CHENA;
		1616	}
		1617	}
		1618	else
		1619	{
		1620	USBx_HC(hcnum)->HCCHAR \|= USB_OTG_HCCHAR_CHDIS;
		1621
		1622	if ((USBx_HOST->HPTXSTS & (0xFFU << 16)) == 0U)
		1623	{
		1624	USBx_HC(hcnum)->HCCHAR &= ~USB_OTG_HCCHAR_CHENA;
		1625	USBx_HC(hcnum)->HCCHAR \|= USB_OTG_HCCHAR_CHENA;
		1626	USBx_HC(hcnum)->HCCHAR &= ~USB_OTG_HCCHAR_EPDIR;
		1627	do
		1628	{
		1629	if (++count > 1000U)
		1630	{
		1631	break;
		1632	}
		1633	}
		1634	while ((USBx_HC(hcnum)->HCCHAR & USB_OTG_HCCHAR_CHENA) == USB_OTG_HCCHAR_CHENA);
		1635	}
		1636	else
		1637	{
		1638	USBx_HC(hcnum)->HCCHAR \|= USB_OTG_HCCHAR_CHENA;
		1639	}
		1640	}
		1641
		1642	return HAL_OK;
		1643	}
		1644
		1645	/**
		1646	* @brief Initiate Do Ping protocol
		1647	* @param USBx Selected device
		1648	* @param hc_num Host Channel number
		1649	* This parameter can be a value from 1 to 15
		1650	* @retval HAL state
		1651	*/
		1652	HAL_StatusTypeDef USB_DoPing(USB_OTG_GlobalTypeDef *USBx, uint8_t ch_num)
		1653	{
		1654	uint32_t USBx_BASE = (uint32_t)USBx;
		1655	uint32_t chnum = (uint32_t)ch_num;
		1656	uint32_t num_packets = 1U;
		1657	uint32_t tmpreg;
		1658
		1659	USBx_HC(chnum)->HCTSIZ = ((num_packets << 19) & USB_OTG_HCTSIZ_PKTCNT) \|
		1660	USB_OTG_HCTSIZ_DOPING;
		1661
		1662	/* Set host channel enable */
		1663	tmpreg = USBx_HC(chnum)->HCCHAR;
		1664	tmpreg &= ~USB_OTG_HCCHAR_CHDIS;
		1665	tmpreg \|= USB_OTG_HCCHAR_CHENA;
		1666	USBx_HC(chnum)->HCCHAR = tmpreg;
		1667
		1668	return HAL_OK;
		1669	}
		1670
		1671	/**
		1672	* @brief Stop Host Core
		1673	* @param USBx Selected device
		1674	* @retval HAL state
		1675	*/
		1676	HAL_StatusTypeDef USB_StopHost(USB_OTG_GlobalTypeDef *USBx)
		1677	{
		1678	uint32_t USBx_BASE = (uint32_t)USBx;
		1679	uint32_t count = 0U;
		1680	uint32_t value;
		1681	uint32_t i;
		1682
		1683	(void)USB_DisableGlobalInt(USBx);
		1684
		1685	/* Flush FIFO */
		1686	(void)USB_FlushTxFifo(USBx, 0x10U);
		1687	(void)USB_FlushRxFifo(USBx);
		1688
		1689	/* Flush out any leftover queued requests. */
		1690	for (i = 0U; i <= 15U; i++)
		1691	{
		1692	value = USBx_HC(i)->HCCHAR;
		1693	value \|= USB_OTG_HCCHAR_CHDIS;
		1694	value &= ~USB_OTG_HCCHAR_CHENA;
		1695	value &= ~USB_OTG_HCCHAR_EPDIR;
		1696	USBx_HC(i)->HCCHAR = value;
		1697	}
		1698
		1699	/* Halt all channels to put them into a known state. */
		1700	for (i = 0U; i <= 15U; i++)
		1701	{
		1702	value = USBx_HC(i)->HCCHAR;
		1703	value \|= USB_OTG_HCCHAR_CHDIS;
		1704	value \|= USB_OTG_HCCHAR_CHENA;
		1705	value &= ~USB_OTG_HCCHAR_EPDIR;
		1706	USBx_HC(i)->HCCHAR = value;
		1707
		1708	do
		1709	{
		1710	if (++count > 1000U)
		1711	{
		1712	break;
		1713	}
		1714	}
		1715	while ((USBx_HC(i)->HCCHAR & USB_OTG_HCCHAR_CHENA) == USB_OTG_HCCHAR_CHENA);
		1716	}
		1717
		1718	/* Clear any pending Host interrupts */
		1719	USBx_HOST->HAINT = 0xFFFFFFFFU;
		1720	USBx->GINTSTS = 0xFFFFFFFFU;
		1721
		1722	(void)USB_EnableGlobalInt(USBx);
		1723
		1724	return HAL_OK;
		1725	}
		1726
		1727	/**
		1728	* @brief USB_ActivateRemoteWakeup active remote wakeup signalling
		1729	* @param USBx Selected device
		1730	* @retval HAL status
		1731	*/
		1732	HAL_StatusTypeDef USB_ActivateRemoteWakeup(USB_OTG_GlobalTypeDef *USBx)
		1733	{
		1734	uint32_t USBx_BASE = (uint32_t)USBx;
		1735
		1736	if ((USBx_DEVICE->DSTS & USB_OTG_DSTS_SUSPSTS) == USB_OTG_DSTS_SUSPSTS)
		1737	{
		1738	/* active Remote wakeup signalling */
		1739	USBx_DEVICE->DCTL \|= USB_OTG_DCTL_RWUSIG;
		1740	}
		1741
		1742	return HAL_OK;
		1743	}
		1744
		1745	/**
		1746	* @brief USB_DeActivateRemoteWakeup de-active remote wakeup signalling
		1747	* @param USBx Selected device
		1748	* @retval HAL status
		1749	*/
		1750	HAL_StatusTypeDef USB_DeActivateRemoteWakeup(USB_OTG_GlobalTypeDef *USBx)
		1751	{
		1752	uint32_t USBx_BASE = (uint32_t)USBx;
		1753
		1754	/* active Remote wakeup signalling */
		1755	USBx_DEVICE->DCTL &= ~(USB_OTG_DCTL_RWUSIG);
		1756
		1757	return HAL_OK;
		1758	}
		1759	#endif /* defined (USB_OTG_FS) */
		1760
		1761	#if defined (USB)
		1762	/**
		1763	* @brief Initializes the USB Core
		1764	* @param USBx: USB Instance
		1765	* @param cfg : pointer to a USB_CfgTypeDef structure that contains
		1766	* the configuration information for the specified USBx peripheral.
		1767	* @retval HAL status
		1768	*/
		1769	HAL_StatusTypeDef USB_CoreInit(USB_TypeDef *USBx, USB_CfgTypeDef cfg)
		1770	{
		1771	/* Prevent unused argument(s) compilation warning */
		1772	UNUSED(USBx);
		1773	UNUSED(cfg);
		1774
		1775	/* NOTE : - This function is not required by USB Device FS peripheral, it is used
		1776	only by USB OTG FS peripheral.
		1777	- This function is added to ensure compatibility across platforms.
		1778	*/
		1779
		1780	return HAL_OK;
		1781	}
		1782
		1783	/**
		1784	* @brief USB_EnableGlobalInt
		1785	* Enables the controller's Global Int in the AHB Config reg
		1786	* @param USBx : Selected device
		1787	* @retval HAL status
		1788	*/
		1789	HAL_StatusTypeDef USB_EnableGlobalInt(USB_TypeDef *USBx)
		1790	{
		1791	uint16_t winterruptmask;
		1792
		1793	/* Set winterruptmask variable */
		1794	winterruptmask = USB_CNTR_CTRM \| USB_CNTR_WKUPM \|
		1795	USB_CNTR_SUSPM \| USB_CNTR_ERRM \|
		1796	USB_CNTR_SOFM \| USB_CNTR_ESOFM \|
		1797	USB_CNTR_RESETM;
		1798
		1799	/* Set interrupt mask */
		1800	USBx->CNTR \|= winterruptmask;
		1801
		1802	return HAL_OK;
		1803	}
		1804
		1805	/**
		1806	* @brief USB_DisableGlobalInt
		1807	* Disable the controller's Global Int in the AHB Config reg
		1808	* @param USBx : Selected device
		1809	* @retval HAL status
		1810	*/
		1811	HAL_StatusTypeDef USB_DisableGlobalInt(USB_TypeDef *USBx)
		1812	{
		1813	uint16_t winterruptmask;
		1814
		1815	/* Set winterruptmask variable */
		1816	winterruptmask = USB_CNTR_CTRM \| USB_CNTR_WKUPM \|
		1817	USB_CNTR_SUSPM \| USB_CNTR_ERRM \|
		1818	USB_CNTR_SOFM \| USB_CNTR_ESOFM \|
		1819	USB_CNTR_RESETM;
		1820
		1821	/* Clear interrupt mask */
		1822	USBx->CNTR &= ~winterruptmask;
		1823
		1824	return HAL_OK;
		1825	}
		1826
		1827	/**
		1828	* @brief USB_SetCurrentMode : Set functional mode
		1829	* @param USBx : Selected device
		1830	* @param mode : current core mode
		1831	* This parameter can be one of the these values:
		1832	* @arg USB_DEVICE_MODE: Peripheral mode mode
		1833	* @retval HAL status
		1834	*/
		1835	HAL_StatusTypeDef USB_SetCurrentMode(USB_TypeDef *USBx, USB_ModeTypeDef mode)
		1836	{
		1837	/* Prevent unused argument(s) compilation warning */
		1838	UNUSED(USBx);
		1839	UNUSED(mode);
		1840
		1841	/* NOTE : - This function is not required by USB Device FS peripheral, it is used
		1842	only by USB OTG FS peripheral.
		1843	- This function is added to ensure compatibility across platforms.
		1844	*/
		1845	return HAL_OK;
		1846	}
		1847
		1848	/**
		1849	* @brief USB_DevInit : Initializes the USB controller registers
		1850	* for device mode
		1851	* @param USBx : Selected device
		1852	* @param cfg : pointer to a USB_CfgTypeDef structure that contains
		1853	* the configuration information for the specified USBx peripheral.
		1854	* @retval HAL status
		1855	*/
		1856	HAL_StatusTypeDef USB_DevInit(USB_TypeDef *USBx, USB_CfgTypeDef cfg)
		1857	{
		1858	/* Prevent unused argument(s) compilation warning */
		1859	UNUSED(cfg);
		1860
		1861	/* Init Device */
		1862	/CNTR_FRES = 1/
		1863	USBx->CNTR = USB_CNTR_FRES;
		1864
		1865	/CNTR_FRES = 0/
		1866	USBx->CNTR = 0;
		1867
		1868	/Clear pending interrupts/
		1869	USBx->ISTR = 0;
		1870
		1871	/Set Btable Address/
		1872	USBx->BTABLE = BTABLE_ADDRESS;
		1873
		1874	/* Enable USB Device Interrupt mask */
		1875	(void)USB_EnableGlobalInt(USBx);
		1876
		1877	return HAL_OK;
		1878	}
		1879
		1880	/**
		1881	* @brief USB_SetDevSpeed :Initializes the device speed
		1882	* depending on the PHY type and the enumeration speed of the device.
		1883	* @param USBx Selected device
		1884	* @param speed device speed
		1885	* @retval Hal status
		1886	*/
		1887	HAL_StatusTypeDef USB_SetDevSpeed(USB_TypeDef *USBx, uint8_t speed)
		1888	{
		1889	/* Prevent unused argument(s) compilation warning */
		1890	UNUSED(USBx);
		1891	UNUSED(speed);
		1892
		1893	/* NOTE : - This function is not required by USB Device FS peripheral, it is used
		1894	only by USB OTG FS peripheral.
		1895	- This function is added to ensure compatibility across platforms.
		1896	*/
		1897
		1898	return HAL_OK;
		1899	}
		1900
		1901	/**
		1902	* @brief USB_FlushTxFifo : Flush a Tx FIFO
		1903	* @param USBx : Selected device
		1904	* @param num : FIFO number
		1905	* This parameter can be a value from 1 to 15
		1906	15 means Flush all Tx FIFOs
		1907	* @retval HAL status
		1908	*/
		1909	HAL_StatusTypeDef USB_FlushTxFifo(USB_TypeDef *USBx, uint32_t num)
		1910	{
		1911	/* Prevent unused argument(s) compilation warning */
		1912	UNUSED(USBx);
		1913	UNUSED(num);
		1914
		1915	/* NOTE : - This function is not required by USB Device FS peripheral, it is used
		1916	only by USB OTG FS peripheral.
		1917	- This function is added to ensure compatibility across platforms.
		1918	*/
		1919
		1920	return HAL_OK;
		1921	}
		1922
		1923	/**
		1924	* @brief USB_FlushRxFifo : Flush Rx FIFO
		1925	* @param USBx : Selected device
		1926	* @retval HAL status
		1927	*/
		1928	HAL_StatusTypeDef USB_FlushRxFifo(USB_TypeDef *USBx)
		1929	{
		1930	/* Prevent unused argument(s) compilation warning */
		1931	UNUSED(USBx);
		1932
		1933	/* NOTE : - This function is not required by USB Device FS peripheral, it is used
		1934	only by USB OTG FS peripheral.
		1935	- This function is added to ensure compatibility across platforms.
		1936	*/
		1937
		1938	return HAL_OK;
		1939	}
		1940
		1941	/**
		1942	* @brief Activate and configure an endpoint
		1943	* @param USBx : Selected device
		1944	* @param ep: pointer to endpoint structure
		1945	* @retval HAL status
		1946	*/
		1947	HAL_StatusTypeDef USB_ActivateEndpoint(USB_TypeDef USBx, USB_EPTypeDef ep)
		1948	{
		1949	HAL_StatusTypeDef ret = HAL_OK;
		1950	uint16_t wEpRegVal;
		1951
		1952	wEpRegVal = PCD_GET_ENDPOINT(USBx, ep->num) & USB_EP_T_MASK;
		1953
		1954	/* initialize Endpoint */
		1955	switch (ep->type)
		1956	{
		1957	case EP_TYPE_CTRL:
		1958	wEpRegVal \|= USB_EP_CONTROL;
		1959	break;
		1960
		1961	case EP_TYPE_BULK:
		1962	wEpRegVal \|= USB_EP_BULK;
		1963	break;
		1964
		1965	case EP_TYPE_INTR:
		1966	wEpRegVal \|= USB_EP_INTERRUPT;
		1967	break;
		1968
		1969	case EP_TYPE_ISOC:
		1970	wEpRegVal \|= USB_EP_ISOCHRONOUS;
		1971	break;
		1972
		1973	default:
		1974	ret = HAL_ERROR;
		1975	break;
		1976	}
		1977
		1978	PCD_SET_ENDPOINT(USBx, ep->num, wEpRegVal \| USB_EP_CTR_RX \| USB_EP_CTR_TX);
		1979
		1980	PCD_SET_EP_ADDRESS(USBx, ep->num, ep->num);
		1981
		1982	if (ep->doublebuffer == 0U)
		1983	{
		1984	if (ep->is_in != 0U)
		1985	{
		1986	/Set the endpoint Transmit buffer address /
		1987	PCD_SET_EP_TX_ADDRESS(USBx, ep->num, ep->pmaadress);
		1988	PCD_CLEAR_TX_DTOG(USBx, ep->num);
		1989
		1990	if (ep->type != EP_TYPE_ISOC)
		1991	{
		1992	/* Configure NAK status for the Endpoint */
		1993	PCD_SET_EP_TX_STATUS(USBx, ep->num, USB_EP_TX_NAK);
		1994	}
		1995	else
		1996	{
		1997	/* Configure TX Endpoint to disabled state */
		1998	PCD_SET_EP_TX_STATUS(USBx, ep->num, USB_EP_TX_DIS);
		1999	}
		2000	}
		2001	else
		2002	{
		2003	/Set the endpoint Receive buffer address /
		2004	PCD_SET_EP_RX_ADDRESS(USBx, ep->num, ep->pmaadress);
		2005	/Set the endpoint Receive buffer counter/
		2006	PCD_SET_EP_RX_CNT(USBx, ep->num, ep->maxpacket);
		2007	PCD_CLEAR_RX_DTOG(USBx, ep->num);
		2008	/* Configure VALID status for the Endpoint*/
		2009	PCD_SET_EP_RX_STATUS(USBx, ep->num, USB_EP_RX_VALID);
		2010	}
		2011	}
		2012	/Double Buffer/
		2013	else
		2014	{
		2015	/* Set the endpoint as double buffered */
		2016	PCD_SET_EP_DBUF(USBx, ep->num);
		2017	/* Set buffer address for double buffered mode */
		2018	PCD_SET_EP_DBUF_ADDR(USBx, ep->num, ep->pmaaddr0, ep->pmaaddr1);
		2019
		2020	if (ep->is_in == 0U)
		2021	{
		2022	/* Clear the data toggle bits for the endpoint IN/OUT */
		2023	PCD_CLEAR_RX_DTOG(USBx, ep->num);
		2024	PCD_CLEAR_TX_DTOG(USBx, ep->num);
		2025
		2026	/* Reset value of the data toggle bits for the endpoint out */
		2027	PCD_TX_DTOG(USBx, ep->num);
		2028
		2029	PCD_SET_EP_RX_STATUS(USBx, ep->num, USB_EP_RX_VALID);
		2030	PCD_SET_EP_TX_STATUS(USBx, ep->num, USB_EP_TX_DIS);
		2031	}
		2032	else
		2033	{
		2034	/* Clear the data toggle bits for the endpoint IN/OUT */
		2035	PCD_CLEAR_RX_DTOG(USBx, ep->num);
		2036	PCD_CLEAR_TX_DTOG(USBx, ep->num);
		2037	PCD_RX_DTOG(USBx, ep->num);
		2038
		2039	if (ep->type != EP_TYPE_ISOC)
		2040	{
		2041	/* Configure NAK status for the Endpoint */
		2042	PCD_SET_EP_TX_STATUS(USBx, ep->num, USB_EP_TX_NAK);
		2043	}
		2044	else
		2045	{
		2046	/* Configure TX Endpoint to disabled state */
		2047	PCD_SET_EP_TX_STATUS(USBx, ep->num, USB_EP_TX_DIS);
		2048	}
		2049
		2050	PCD_SET_EP_RX_STATUS(USBx, ep->num, USB_EP_RX_DIS);
		2051	}
		2052	}
		2053
		2054	return ret;
		2055	}
		2056
		2057	/**
		2058	* @brief De-activate and de-initialize an endpoint
		2059	* @param USBx : Selected device
		2060	* @param ep: pointer to endpoint structure
		2061	* @retval HAL status
		2062	*/
		2063	HAL_StatusTypeDef USB_DeactivateEndpoint(USB_TypeDef USBx, USB_EPTypeDef ep)
		2064	{
		2065	if (ep->doublebuffer == 0U)
		2066	{
		2067	if (ep->is_in != 0U)
		2068	{
		2069	PCD_CLEAR_TX_DTOG(USBx, ep->num);
		2070	/* Configure DISABLE status for the Endpoint*/
		2071	PCD_SET_EP_TX_STATUS(USBx, ep->num, USB_EP_TX_DIS);
		2072	}
		2073	else
		2074	{
		2075	PCD_CLEAR_RX_DTOG(USBx, ep->num);
		2076	/* Configure DISABLE status for the Endpoint*/
		2077	PCD_SET_EP_RX_STATUS(USBx, ep->num, USB_EP_RX_DIS);
		2078	}
		2079	}
		2080	/Double Buffer/
		2081	else
		2082	{
		2083	if (ep->is_in == 0U)
		2084	{
		2085	/* Clear the data toggle bits for the endpoint IN/OUT*/
		2086	PCD_CLEAR_RX_DTOG(USBx, ep->num);
		2087	PCD_CLEAR_TX_DTOG(USBx, ep->num);
		2088
		2089	/* Reset value of the data toggle bits for the endpoint out*/
		2090	PCD_TX_DTOG(USBx, ep->num);
		2091
		2092	PCD_SET_EP_RX_STATUS(USBx, ep->num, USB_EP_RX_DIS);
		2093	PCD_SET_EP_TX_STATUS(USBx, ep->num, USB_EP_TX_DIS);
		2094	}
		2095	else
		2096	{
		2097	/* Clear the data toggle bits for the endpoint IN/OUT*/
		2098	PCD_CLEAR_RX_DTOG(USBx, ep->num);
		2099	PCD_CLEAR_TX_DTOG(USBx, ep->num);
		2100	PCD_RX_DTOG(USBx, ep->num);
		2101	/* Configure DISABLE status for the Endpoint*/
		2102	PCD_SET_EP_TX_STATUS(USBx, ep->num, USB_EP_TX_DIS);
		2103	PCD_SET_EP_RX_STATUS(USBx, ep->num, USB_EP_RX_DIS);
		2104	}
		2105	}
		2106
		2107	return HAL_OK;
		2108	}
		2109
		2110	/**
		2111	* @brief USB_EPStartXfer : setup and starts a transfer over an EP
		2112	* @param USBx : Selected device
		2113	* @param ep: pointer to endpoint structure
		2114	* @retval HAL status
		2115	*/
		2116	HAL_StatusTypeDef USB_EPStartXfer(USB_TypeDef USBx, USB_EPTypeDef ep)
		2117	{
		2118	uint16_t pmabuffer;
		2119	uint32_t len;
		2120
		2121	/* IN endpoint */
		2122	if (ep->is_in == 1U)
		2123	{
		2124	/Multi packet transfer/
		2125	if (ep->xfer_len > ep->maxpacket)
		2126	{
		2127	len = ep->maxpacket;
		2128	ep->xfer_len -= len;
		2129	}
		2130	else
		2131	{
		2132	len = ep->xfer_len;
		2133	ep->xfer_len = 0U;
		2134	}
		2135
		2136	/* configure and validate Tx endpoint */
		2137	if (ep->doublebuffer == 0U)
		2138	{
		2139	USB_WritePMA(USBx, ep->xfer_buff, ep->pmaadress, (uint16_t)len);
		2140	PCD_SET_EP_TX_CNT(USBx, ep->num, len);
		2141	}
		2142	else
		2143	{
		2144	/* Write the data to the USB endpoint */
		2145	if ((PCD_GET_ENDPOINT(USBx, ep->num) & USB_EP_DTOG_TX) != 0U)
		2146	{
		2147	/* Set the Double buffer counter for pmabuffer1 */
		2148	PCD_SET_EP_DBUF1_CNT(USBx, ep->num, ep->is_in, len);
		2149	pmabuffer = ep->pmaaddr1;
		2150	}
		2151	else
		2152	{
		2153	/* Set the Double buffer counter for pmabuffer0 */
		2154	PCD_SET_EP_DBUF0_CNT(USBx, ep->num, ep->is_in, len);
		2155	pmabuffer = ep->pmaaddr0;
		2156	}
		2157	USB_WritePMA(USBx, ep->xfer_buff, pmabuffer, (uint16_t)len);
		2158	PCD_FreeUserBuffer(USBx, ep->num, ep->is_in);
		2159	}
		2160
		2161	PCD_SET_EP_TX_STATUS(USBx, ep->num, USB_EP_TX_VALID);
		2162	}
		2163	else /* OUT endpoint */
		2164	{
		2165	/* Multi packet transfer*/
		2166	if (ep->xfer_len > ep->maxpacket)
		2167	{
		2168	len = ep->maxpacket;
		2169	ep->xfer_len -= len;
		2170	}
		2171	else
		2172	{
		2173	len = ep->xfer_len;
		2174	ep->xfer_len = 0U;
		2175	}
		2176
		2177	/* configure and validate Rx endpoint */
		2178	if (ep->doublebuffer == 0U)
		2179	{
		2180	/Set RX buffer count/
		2181	PCD_SET_EP_RX_CNT(USBx, ep->num, len);
		2182	}
		2183	else
		2184	{
		2185	/Set the Double buffer counter/
		2186	PCD_SET_EP_DBUF_CNT(USBx, ep->num, ep->is_in, len);
		2187	}
		2188
		2189	PCD_SET_EP_RX_STATUS(USBx, ep->num, USB_EP_RX_VALID);
		2190	}
		2191
		2192	return HAL_OK;
		2193	}
		2194
		2195	/**
		2196	* @brief USB_WritePacket : Writes a packet into the Tx FIFO associated
		2197	* with the EP/channel
		2198	* @param USBx : Selected device
		2199	* @param src : pointer to source buffer
		2200	* @param ch_ep_num : endpoint or host channel number
		2201	* @param len : Number of bytes to write
		2202	* @retval HAL status
		2203	*/
		2204	HAL_StatusTypeDef USB_WritePacket(USB_TypeDef USBx, uint8_t src, uint8_t ch_ep_num, uint16_t len)
		2205	{
		2206	/* Prevent unused argument(s) compilation warning */
		2207	UNUSED(USBx);
		2208	UNUSED(src);
		2209	UNUSED(ch_ep_num);
		2210	UNUSED(len);
		2211	/* NOTE : - This function is not required by USB Device FS peripheral, it is used
		2212	only by USB OTG FS peripheral.
		2213	- This function is added to ensure compatibility across platforms.
		2214	*/
		2215	return HAL_OK;
		2216	}
		2217
		2218	/**
		2219	* @brief USB_ReadPacket : read a packet from the Tx FIFO associated
		2220	* with the EP/channel
		2221	* @param USBx : Selected device
		2222	* @param dest : destination pointer
		2223	* @param len : Number of bytes to read
		2224	* @retval pointer to destination buffer
		2225	*/
		2226	void USB_ReadPacket(USB_TypeDef USBx, uint8_t *dest, uint16_t len)
		2227	{
		2228	/* Prevent unused argument(s) compilation warning */
		2229	UNUSED(USBx);
		2230	UNUSED(dest);
		2231	UNUSED(len);
		2232	/* NOTE : - This function is not required by USB Device FS peripheral, it is used
		2233	only by USB OTG FS peripheral.
		2234	- This function is added to ensure compatibility across platforms.
		2235	*/
		2236	return ((void *)NULL);
		2237	}
		2238
		2239	/**
		2240	* @brief USB_EPSetStall : set a stall condition over an EP
		2241	* @param USBx : Selected device
		2242	* @param ep: pointer to endpoint structure
		2243	* @retval HAL status
		2244	*/
		2245	HAL_StatusTypeDef USB_EPSetStall(USB_TypeDef USBx, USB_EPTypeDef ep)
		2246	{
		2247	if (ep->is_in != 0U)
		2248	{
		2249	PCD_SET_EP_TX_STATUS(USBx, ep->num, USB_EP_TX_STALL);
		2250	}
		2251	else
		2252	{
		2253	PCD_SET_EP_RX_STATUS(USBx, ep->num, USB_EP_RX_STALL);
		2254	}
		2255
		2256	return HAL_OK;
		2257	}
		2258
		2259	/**
		2260	* @brief USB_EPClearStall : Clear a stall condition over an EP
		2261	* @param USBx : Selected device
		2262	* @param ep: pointer to endpoint structure
		2263	* @retval HAL status
		2264	*/
		2265	HAL_StatusTypeDef USB_EPClearStall(USB_TypeDef USBx, USB_EPTypeDef ep)
		2266	{
		2267	if (ep->doublebuffer == 0U)
		2268	{
		2269	if (ep->is_in != 0U)
		2270	{
		2271	PCD_CLEAR_TX_DTOG(USBx, ep->num);
		2272
		2273	if (ep->type != EP_TYPE_ISOC)
		2274	{
		2275	/* Configure NAK status for the Endpoint */
		2276	PCD_SET_EP_TX_STATUS(USBx, ep->num, USB_EP_TX_NAK);
		2277	}
		2278	}
		2279	else
		2280	{
		2281	PCD_CLEAR_RX_DTOG(USBx, ep->num);
		2282
		2283	/* Configure VALID status for the Endpoint*/
		2284	PCD_SET_EP_RX_STATUS(USBx, ep->num, USB_EP_RX_VALID);
		2285	}
		2286	}
		2287
		2288	return HAL_OK;
		2289	}
		2290
		2291	/**
		2292	* @brief USB_StopDevice : Stop the usb device mode
		2293	* @param USBx : Selected device
		2294	* @retval HAL status
		2295	*/
		2296	HAL_StatusTypeDef USB_StopDevice(USB_TypeDef *USBx)
		2297	{
		2298	/* disable all interrupts and force USB reset */
		2299	USBx->CNTR = USB_CNTR_FRES;
		2300
		2301	/* clear interrupt status register */
		2302	USBx->ISTR = 0;
		2303
		2304	/* switch-off device */
		2305	USBx->CNTR = (USB_CNTR_FRES \| USB_CNTR_PDWN);
		2306
		2307	return HAL_OK;
		2308	}
		2309
		2310	/**
		2311	* @brief USB_SetDevAddress : Stop the usb device mode
		2312	* @param USBx : Selected device
		2313	* @param address : new device address to be assigned
		2314	* This parameter can be a value from 0 to 255
		2315	* @retval HAL status
		2316	*/
		2317	HAL_StatusTypeDef USB_SetDevAddress(USB_TypeDef *USBx, uint8_t address)
		2318	{
		2319	if (address == 0U)
		2320	{
		2321	/* set device address and enable function */
		2322	USBx->DADDR = USB_DADDR_EF;
		2323	}
		2324
		2325	return HAL_OK;
		2326	}
		2327
		2328	/**
		2329	* @brief USB_DevConnect : Connect the USB device by enabling the pull-up/pull-down
		2330	* @param USBx : Selected device
		2331	* @retval HAL status
		2332	*/
		2333	HAL_StatusTypeDef USB_DevConnect(USB_TypeDef *USBx)
		2334	{
		2335	/* Prevent unused argument(s) compilation warning */
		2336	UNUSED(USBx);
		2337	/* NOTE : - This function is not required by USB Device FS peripheral, it is used
		2338	only by USB OTG FS peripheral.
		2339	- This function is added to ensure compatibility across platforms.
		2340	*/
		2341
		2342	return HAL_OK;
		2343	}
		2344
		2345	/**
		2346	* @brief USB_DevDisconnect : Disconnect the USB device by disabling the pull-up/pull-down
		2347	* @param USBx : Selected device
		2348	* @retval HAL status
		2349	*/
		2350	HAL_StatusTypeDef USB_DevDisconnect(USB_TypeDef *USBx)
		2351	{
		2352	/* Prevent unused argument(s) compilation warning */
		2353	UNUSED(USBx);
		2354	/* NOTE : - This function is not required by USB Device FS peripheral, it is used
		2355	only by USB OTG FS peripheral.
		2356	- This function is added to ensure compatibility across platforms.
		2357	*/
		2358
		2359	return HAL_OK;
		2360	}
		2361
		2362	/**
		2363	* @brief USB_ReadInterrupts: return the global USB interrupt status
		2364	* @param USBx : Selected device
		2365	* @retval HAL status
		2366	*/
		2367	uint32_t USB_ReadInterrupts(USB_TypeDef *USBx)
		2368	{
		2369	uint32_t tmpreg;
		2370
		2371	tmpreg = USBx->ISTR;
		2372	return tmpreg;
		2373	}
		2374
		2375	/**
		2376	* @brief USB_ReadDevAllOutEpInterrupt: return the USB device OUT endpoints interrupt status
		2377	* @param USBx : Selected device
		2378	* @retval HAL status
		2379	*/
		2380	uint32_t USB_ReadDevAllOutEpInterrupt(USB_TypeDef *USBx)
		2381	{
		2382	/* Prevent unused argument(s) compilation warning */
		2383	UNUSED(USBx);
		2384	/* NOTE : - This function is not required by USB Device FS peripheral, it is used
		2385	only by USB OTG FS peripheral.
		2386	- This function is added to ensure compatibility across platforms.
		2387	*/
		2388	return (0);
		2389	}
		2390
		2391	/**
		2392	* @brief USB_ReadDevAllInEpInterrupt: return the USB device IN endpoints interrupt status
		2393	* @param USBx : Selected device
		2394	* @retval HAL status
		2395	*/
		2396	uint32_t USB_ReadDevAllInEpInterrupt(USB_TypeDef *USBx)
		2397	{
		2398	/* Prevent unused argument(s) compilation warning */
		2399	UNUSED(USBx);
		2400	/* NOTE : - This function is not required by USB Device FS peripheral, it is used
		2401	only by USB OTG FS peripheral.
		2402	- This function is added to ensure compatibility across platforms.
		2403	*/
		2404	return (0);
		2405	}
		2406
		2407	/**
		2408	* @brief Returns Device OUT EP Interrupt register
		2409	* @param USBx : Selected device
		2410	* @param epnum : endpoint number
		2411	* This parameter can be a value from 0 to 15
		2412	* @retval Device OUT EP Interrupt register
		2413	*/
		2414	uint32_t USB_ReadDevOutEPInterrupt(USB_TypeDef *USBx, uint8_t epnum)
		2415	{
		2416	/* Prevent unused argument(s) compilation warning */
		2417	UNUSED(USBx);
		2418	UNUSED(epnum);
		2419	/* NOTE : - This function is not required by USB Device FS peripheral, it is used
		2420	only by USB OTG FS peripheral.
		2421	- This function is added to ensure compatibility across platforms.
		2422	*/
		2423	return (0);
		2424	}
		2425
		2426	/**
		2427	* @brief Returns Device IN EP Interrupt register
		2428	* @param USBx : Selected device
		2429	* @param epnum : endpoint number
		2430	* This parameter can be a value from 0 to 15
		2431	* @retval Device IN EP Interrupt register
		2432	*/
		2433	uint32_t USB_ReadDevInEPInterrupt(USB_TypeDef *USBx, uint8_t epnum)
		2434	{
		2435	/* Prevent unused argument(s) compilation warning */
		2436	UNUSED(USBx);
		2437	UNUSED(epnum);
		2438	/* NOTE : - This function is not required by USB Device FS peripheral, it is used
		2439	only by USB OTG FS peripheral.
		2440	- This function is added to ensure compatibility across platforms.
		2441	*/
		2442	return (0);
		2443	}
		2444
		2445	/**
		2446	* @brief USB_ClearInterrupts: clear a USB interrupt
		2447	* @param USBx Selected device
		2448	* @param interrupt interrupt flag
		2449	* @retval None
		2450	*/
		2451	void USB_ClearInterrupts(USB_TypeDef *USBx, uint32_t interrupt)
		2452	{
		2453	/* Prevent unused argument(s) compilation warning */
		2454	UNUSED(USBx);
		2455	UNUSED(interrupt);
		2456	/* NOTE : - This function is not required by USB Device FS peripheral, it is used
		2457	only by USB OTG FS peripheral.
		2458	- This function is added to ensure compatibility across platforms.
		2459	*/
		2460	}
		2461
		2462	/**
		2463	* @brief Prepare the EP0 to start the first control setup
		2464	* @param USBx Selected device
		2465	* @param psetup pointer to setup packet
		2466	* @retval HAL status
		2467	*/
		2468	HAL_StatusTypeDef USB_EP0_OutStart(USB_TypeDef USBx, uint8_t psetup)
		2469	{
		2470	/* Prevent unused argument(s) compilation warning */
		2471	UNUSED(USBx);
		2472	UNUSED(psetup);
		2473	/* NOTE : - This function is not required by USB Device FS peripheral, it is used
		2474	only by USB OTG FS peripheral.
		2475	- This function is added to ensure compatibility across platforms.
		2476	*/
		2477	return HAL_OK;
		2478	}
		2479
		2480	/**
		2481	* @brief USB_ActivateRemoteWakeup : active remote wakeup signalling
		2482	* @param USBx Selected device
		2483	* @retval HAL status
		2484	*/
		2485	HAL_StatusTypeDef USB_ActivateRemoteWakeup(USB_TypeDef *USBx)
		2486	{
		2487	USBx->CNTR \|= USB_CNTR_RESUME;
		2488
		2489	return HAL_OK;
		2490	}
		2491
		2492	/**
		2493	* @brief USB_DeActivateRemoteWakeup : de-active remote wakeup signalling
		2494	* @param USBx Selected device
		2495	* @retval HAL status
		2496	*/
		2497	HAL_StatusTypeDef USB_DeActivateRemoteWakeup(USB_TypeDef *USBx)
		2498	{
		2499	USBx->CNTR &= ~(USB_CNTR_RESUME);
		2500	return HAL_OK;
		2501	}
		2502
		2503	/**
		2504	* @brief Copy a buffer from user memory area to packet memory area (PMA)
		2505	* @param USBx USB peripheral instance register address.
		2506	* @param pbUsrBuf pointer to user memory area.
		2507	* @param wPMABufAddr address into PMA.
		2508	* @param wNBytes: no. of bytes to be copied.
		2509	* @retval None
		2510	*/
		2511	void USB_WritePMA(USB_TypeDef USBx, uint8_t pbUsrBuf, uint16_t wPMABufAddr, uint16_t wNBytes)
		2512	{
		2513	uint32_t n = ((uint32_t)wNBytes + 1U) >> 1;
		2514	uint32_t BaseAddr = (uint32_t)USBx;
		2515	uint32_t i, temp1, temp2;
		2516	__IO uint16_t *pdwVal;
		2517	uint8_t *pBuf = pbUsrBuf;
		2518
		2519	pdwVal = (__IO uint16_t )(BaseAddr + 0x400U + ((uint32_t)wPMABufAddr PMA_ACCESS));
		2520
		2521	for (i = n; i != 0U; i--)
		2522	{
		2523	temp1 = *pBuf;
		2524	pBuf++;
		2525	temp2 = temp1 \| ((uint16_t)((uint16_t) *pBuf << 8));
		2526	*pdwVal = (uint16_t)temp2;
		2527	pdwVal++;
		2528
		2529	#if PMA_ACCESS > 1U
		2530	pdwVal++;
		2531	#endif
		2532
		2533	pBuf++;
		2534	}
		2535	}
		2536
		2537	/**
		2538	* @brief Copy a buffer from user memory area to packet memory area (PMA)
		2539	* @param USBx: USB peripheral instance register address.
		2540	* @param pbUsrBuf pointer to user memory area.
		2541	* @param wPMABufAddr address into PMA.
		2542	* @param wNBytes: no. of bytes to be copied.
		2543	* @retval None
		2544	*/
		2545	void USB_ReadPMA(USB_TypeDef USBx, uint8_t pbUsrBuf, uint16_t wPMABufAddr, uint16_t wNBytes)
		2546	{
		2547	uint32_t n = (uint32_t)wNBytes >> 1;
		2548	uint32_t BaseAddr = (uint32_t)USBx;
		2549	uint32_t i, temp;
		2550	__IO uint16_t *pdwVal;
		2551	uint8_t *pBuf = pbUsrBuf;
		2552
		2553	pdwVal = (__IO uint16_t )(BaseAddr + 0x400U + ((uint32_t)wPMABufAddr PMA_ACCESS));
		2554
		2555	for (i = n; i != 0U; i--)
		2556	{
		2557	temp = (__IO uint16_t )pdwVal;
		2558	pdwVal++;
		2559	*pBuf = (uint8_t)((temp >> 0) & 0xFFU);
		2560	pBuf++;
		2561	*pBuf = (uint8_t)((temp >> 8) & 0xFFU);
		2562	pBuf++;
		2563
		2564	#if PMA_ACCESS > 1U
		2565	pdwVal++;
		2566	#endif
		2567	}
		2568
		2569	if ((wNBytes % 2U) != 0U)
		2570	{
		2571	temp = *pdwVal;
		2572	*pBuf = (uint8_t)((temp >> 0) & 0xFFU);
		2573	}
		2574	}
		2575	#endif /* defined (USB) */
		2576
		2577	/**
		2578	* @}
		2579	*/
		2580
		2581	/**
		2582	* @}
		2583	*/
		2584	#endif /* defined (USB) \|\| defined (USB_OTG_FS) */
		2585	#endif /* defined (HAL_PCD_MODULE_ENABLED) \|\| defined (HAL_HCD_MODULE_ENABLED) */
		2586
		2587	/**
		2588	* @}
		2589	*/
		2590
		2591	/********************** (C) COPYRIGHT STMicroelectronics *END OF FILE**/

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(root)/trunk/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_ll_usb.c – Rev 2