From 86608c6770cf08c138a2bdab5855072f64be09ef Mon Sep 17 00:00:00 2001 From: joshua Date: Sat, 30 Dec 2023 23:54:31 -0500 Subject: initial commit --- .../STM32H7xx_HAL_Driver/Src/stm32h7xx_ll_usb.c | 2143 ++++++++++++++++++++ 1 file changed, 2143 insertions(+) create mode 100644 Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_ll_usb.c (limited to 'Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_ll_usb.c') diff --git a/Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_ll_usb.c b/Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_ll_usb.c new file mode 100644 index 0000000..77b69ae --- /dev/null +++ b/Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_ll_usb.c @@ -0,0 +1,2143 @@ +/** + ****************************************************************************** + * @file stm32h7xx_ll_usb.c + * @author MCD Application Team + * @brief USB Low Layer HAL module driver. + * + * This file provides firmware functions to manage the following + * functionalities of the USB Peripheral Controller: + * + Initialization/de-initialization functions + * + I/O operation functions + * + Peripheral Control functions + * + Peripheral State functions + * + ****************************************************************************** + * @attention + * + * Copyright (c) 2017 STMicroelectronics. + * All rights reserved. + * + * This software is licensed under terms that can be found in the LICENSE file + * in the root directory of this software component. + * If no LICENSE file comes with this software, it is provided AS-IS. + * + ****************************************************************************** + @verbatim + ============================================================================== + ##### How to use this driver ##### + ============================================================================== + [..] + (#) Fill parameters of Init structure in USB_CfgTypeDef structure. + + (#) Call USB_CoreInit() API to initialize the USB Core peripheral. + + (#) The upper HAL HCD/PCD driver will call the right routines for its internal processes. + + @endverbatim + + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32h7xx_hal.h" + +/** @addtogroup STM32H7xx_LL_USB_DRIVER + * @{ + */ + +#if defined (HAL_PCD_MODULE_ENABLED) || defined (HAL_HCD_MODULE_ENABLED) +#if defined (USB_OTG_FS) || defined (USB_OTG_HS) +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ +/* Private functions ---------------------------------------------------------*/ +#if defined (USB_OTG_FS) || defined (USB_OTG_HS) +static HAL_StatusTypeDef USB_CoreReset(USB_OTG_GlobalTypeDef *USBx); + +/* Exported functions --------------------------------------------------------*/ +/** @defgroup USB_LL_Exported_Functions USB Low Layer Exported Functions + * @{ + */ + +/** @defgroup USB_LL_Exported_Functions_Group1 Initialization/de-initialization functions + * @brief Initialization and Configuration functions + * +@verbatim + =============================================================================== + ##### Initialization/de-initialization functions ##### + =============================================================================== + +@endverbatim + * @{ + */ + +/** + * @brief Initializes the USB Core + * @param USBx USB Instance + * @param cfg pointer to a USB_OTG_CfgTypeDef structure that contains + * the configuration information for the specified USBx peripheral. + * @retval HAL status + */ +HAL_StatusTypeDef USB_CoreInit(USB_OTG_GlobalTypeDef *USBx, USB_OTG_CfgTypeDef cfg) +{ + HAL_StatusTypeDef ret; + if (cfg.phy_itface == USB_OTG_ULPI_PHY) + { + USBx->GCCFG &= ~(USB_OTG_GCCFG_PWRDWN); + + /* Init The ULPI Interface */ + USBx->GUSBCFG &= ~(USB_OTG_GUSBCFG_TSDPS | USB_OTG_GUSBCFG_ULPIFSLS | USB_OTG_GUSBCFG_PHYSEL); + + /* Select vbus source */ + USBx->GUSBCFG &= ~(USB_OTG_GUSBCFG_ULPIEVBUSD | USB_OTG_GUSBCFG_ULPIEVBUSI); + if (cfg.use_external_vbus == 1U) + { + USBx->GUSBCFG |= USB_OTG_GUSBCFG_ULPIEVBUSD; + } + + /* Reset after a PHY select */ + ret = USB_CoreReset(USBx); + } + else /* FS interface (embedded Phy) */ + { + /* Select FS Embedded PHY */ + USBx->GUSBCFG |= USB_OTG_GUSBCFG_PHYSEL; + + /* Reset after a PHY select */ + ret = USB_CoreReset(USBx); + + if (cfg.battery_charging_enable == 0U) + { + /* Activate the USB Transceiver */ + USBx->GCCFG |= USB_OTG_GCCFG_PWRDWN; + } + else + { + /* Deactivate the USB Transceiver */ + USBx->GCCFG &= ~(USB_OTG_GCCFG_PWRDWN); + } + } + + if (cfg.dma_enable == 1U) + { + /* make sure to reserve 18 fifo Locations for DMA buffers */ + USBx->GDFIFOCFG &= ~(0xFFFFU << 16); + USBx->GDFIFOCFG |= 0x3EEU << 16; + + USBx->GAHBCFG |= USB_OTG_GAHBCFG_HBSTLEN_2; + USBx->GAHBCFG |= USB_OTG_GAHBCFG_DMAEN; + } + + return ret; +} + + +/** + * @brief Set the USB turnaround time + * @param USBx USB Instance + * @param hclk: AHB clock frequency + * @retval USB turnaround time In PHY Clocks number + */ +HAL_StatusTypeDef USB_SetTurnaroundTime(USB_OTG_GlobalTypeDef *USBx, + uint32_t hclk, uint8_t speed) +{ + uint32_t UsbTrd; + + /* The USBTRD is configured according to the tables below, depending on AHB frequency + used by application. In the low AHB frequency range it is used to stretch enough the USB response + time to IN tokens, the USB turnaround time, so to compensate for the longer AHB read access + latency to the Data FIFO */ + if (speed == USBD_FS_SPEED) + { + if ((hclk >= 14200000U) && (hclk < 15000000U)) + { + /* hclk Clock Range between 14.2-15 MHz */ + UsbTrd = 0xFU; + } + else if ((hclk >= 15000000U) && (hclk < 16000000U)) + { + /* hclk Clock Range between 15-16 MHz */ + UsbTrd = 0xEU; + } + else if ((hclk >= 16000000U) && (hclk < 17200000U)) + { + /* hclk Clock Range between 16-17.2 MHz */ + UsbTrd = 0xDU; + } + else if ((hclk >= 17200000U) && (hclk < 18500000U)) + { + /* hclk Clock Range between 17.2-18.5 MHz */ + UsbTrd = 0xCU; + } + else if ((hclk >= 18500000U) && (hclk < 20000000U)) + { + /* hclk Clock Range between 18.5-20 MHz */ + UsbTrd = 0xBU; + } + else if ((hclk >= 20000000U) && (hclk < 21800000U)) + { + /* hclk Clock Range between 20-21.8 MHz */ + UsbTrd = 0xAU; + } + else if ((hclk >= 21800000U) && (hclk < 24000000U)) + { + /* hclk Clock Range between 21.8-24 MHz */ + UsbTrd = 0x9U; + } + else if ((hclk >= 24000000U) && (hclk < 27700000U)) + { + /* hclk Clock Range between 24-27.7 MHz */ + UsbTrd = 0x8U; + } + else if ((hclk >= 27700000U) && (hclk < 32000000U)) + { + /* hclk Clock Range between 27.7-32 MHz */ + UsbTrd = 0x7U; + } + else /* if(hclk >= 32000000) */ + { + /* hclk Clock Range between 32-200 MHz */ + UsbTrd = 0x6U; + } + } + else if (speed == USBD_HS_SPEED) + { + UsbTrd = USBD_HS_TRDT_VALUE; + } + else + { + UsbTrd = USBD_DEFAULT_TRDT_VALUE; + } + + USBx->GUSBCFG &= ~USB_OTG_GUSBCFG_TRDT; + USBx->GUSBCFG |= (uint32_t)((UsbTrd << 10) & USB_OTG_GUSBCFG_TRDT); + + return HAL_OK; +} + +/** + * @brief USB_EnableGlobalInt + * Enables the controller's Global Int in the AHB Config reg + * @param USBx Selected device + * @retval HAL status + */ +HAL_StatusTypeDef USB_EnableGlobalInt(USB_OTG_GlobalTypeDef *USBx) +{ + USBx->GAHBCFG |= USB_OTG_GAHBCFG_GINT; + return HAL_OK; +} + +/** + * @brief USB_DisableGlobalInt + * Disable the controller's Global Int in the AHB Config reg + * @param USBx Selected device + * @retval HAL status + */ +HAL_StatusTypeDef USB_DisableGlobalInt(USB_OTG_GlobalTypeDef *USBx) +{ + USBx->GAHBCFG &= ~USB_OTG_GAHBCFG_GINT; + return HAL_OK; +} + +/** + * @brief USB_SetCurrentMode Set functional mode + * @param USBx Selected device + * @param mode current core mode + * This parameter can be one of these values: + * @arg USB_DEVICE_MODE Peripheral mode + * @arg USB_HOST_MODE Host mode + * @retval HAL status + */ +HAL_StatusTypeDef USB_SetCurrentMode(USB_OTG_GlobalTypeDef *USBx, USB_OTG_ModeTypeDef mode) +{ + uint32_t ms = 0U; + + USBx->GUSBCFG &= ~(USB_OTG_GUSBCFG_FHMOD | USB_OTG_GUSBCFG_FDMOD); + + if (mode == USB_HOST_MODE) + { + USBx->GUSBCFG |= USB_OTG_GUSBCFG_FHMOD; + + do + { + HAL_Delay(1U); + ms++; + } while ((USB_GetMode(USBx) != (uint32_t)USB_HOST_MODE) && (ms < 50U)); + } + else if (mode == USB_DEVICE_MODE) + { + USBx->GUSBCFG |= USB_OTG_GUSBCFG_FDMOD; + + do + { + HAL_Delay(1U); + ms++; + } while ((USB_GetMode(USBx) != (uint32_t)USB_DEVICE_MODE) && (ms < 50U)); + } + else + { + return HAL_ERROR; + } + + if (ms == 50U) + { + return HAL_ERROR; + } + + return HAL_OK; +} + +/** + * @brief USB_DevInit Initializes the USB_OTG controller registers + * for device mode + * @param USBx Selected device + * @param cfg pointer to a USB_OTG_CfgTypeDef structure that contains + * the configuration information for the specified USBx peripheral. + * @retval HAL status + */ +HAL_StatusTypeDef USB_DevInit(USB_OTG_GlobalTypeDef *USBx, USB_OTG_CfgTypeDef cfg) +{ + HAL_StatusTypeDef ret = HAL_OK; + uint32_t USBx_BASE = (uint32_t)USBx; + uint32_t i; + + for (i = 0U; i < 15U; i++) + { + USBx->DIEPTXF[i] = 0U; + } + + /* VBUS Sensing setup */ + if (cfg.vbus_sensing_enable == 0U) + { + USBx_DEVICE->DCTL |= USB_OTG_DCTL_SDIS; + + /* Deactivate VBUS Sensing B */ + USBx->GCCFG &= ~USB_OTG_GCCFG_VBDEN; + + /* B-peripheral session valid override enable */ + USBx->GOTGCTL |= USB_OTG_GOTGCTL_BVALOEN; + USBx->GOTGCTL |= USB_OTG_GOTGCTL_BVALOVAL; + } + else + { + /* Enable HW VBUS sensing */ + USBx->GCCFG |= USB_OTG_GCCFG_VBDEN; + } + + /* Restart the Phy Clock */ + USBx_PCGCCTL = 0U; + + /* Device mode configuration */ + USBx_DEVICE->DCFG |= DCFG_FRAME_INTERVAL_80; + + if (cfg.phy_itface == USB_OTG_ULPI_PHY) + { + if (cfg.speed == USBD_HS_SPEED) + { + /* Set Core speed to High speed mode */ + (void)USB_SetDevSpeed(USBx, USB_OTG_SPEED_HIGH); + } + else + { + /* Set Core speed to Full speed mode */ + (void)USB_SetDevSpeed(USBx, USB_OTG_SPEED_HIGH_IN_FULL); + } + } + else + { + /* Set Core speed to Full speed mode */ + (void)USB_SetDevSpeed(USBx, USB_OTG_SPEED_FULL); + } + + /* Flush the FIFOs */ + if (USB_FlushTxFifo(USBx, 0x10U) != HAL_OK) /* all Tx FIFOs */ + { + ret = HAL_ERROR; + } + + if (USB_FlushRxFifo(USBx) != HAL_OK) + { + ret = HAL_ERROR; + } + + /* Clear all pending Device Interrupts */ + USBx_DEVICE->DIEPMSK = 0U; + USBx_DEVICE->DOEPMSK = 0U; + USBx_DEVICE->DAINTMSK = 0U; + + for (i = 0U; i < cfg.dev_endpoints; i++) + { + if ((USBx_INEP(i)->DIEPCTL & USB_OTG_DIEPCTL_EPENA) == USB_OTG_DIEPCTL_EPENA) + { + if (i == 0U) + { + USBx_INEP(i)->DIEPCTL = USB_OTG_DIEPCTL_SNAK; + } + else + { + USBx_INEP(i)->DIEPCTL = USB_OTG_DIEPCTL_EPDIS | USB_OTG_DIEPCTL_SNAK; + } + } + else + { + USBx_INEP(i)->DIEPCTL = 0U; + } + + USBx_INEP(i)->DIEPTSIZ = 0U; + USBx_INEP(i)->DIEPINT = 0xFB7FU; + } + + for (i = 0U; i < cfg.dev_endpoints; i++) + { + if ((USBx_OUTEP(i)->DOEPCTL & USB_OTG_DOEPCTL_EPENA) == USB_OTG_DOEPCTL_EPENA) + { + if (i == 0U) + { + USBx_OUTEP(i)->DOEPCTL = USB_OTG_DOEPCTL_SNAK; + } + else + { + USBx_OUTEP(i)->DOEPCTL = USB_OTG_DOEPCTL_EPDIS | USB_OTG_DOEPCTL_SNAK; + } + } + else + { + USBx_OUTEP(i)->DOEPCTL = 0U; + } + + USBx_OUTEP(i)->DOEPTSIZ = 0U; + USBx_OUTEP(i)->DOEPINT = 0xFB7FU; + } + + USBx_DEVICE->DIEPMSK &= ~(USB_OTG_DIEPMSK_TXFURM); + + /* Disable all interrupts. */ + USBx->GINTMSK = 0U; + + /* Clear any pending interrupts */ + USBx->GINTSTS = 0xBFFFFFFFU; + + /* Enable the common interrupts */ + if (cfg.dma_enable == 0U) + { + USBx->GINTMSK |= USB_OTG_GINTMSK_RXFLVLM; + } + + /* Enable interrupts matching to the Device mode ONLY */ + USBx->GINTMSK |= USB_OTG_GINTMSK_USBSUSPM | USB_OTG_GINTMSK_USBRST | + USB_OTG_GINTMSK_ENUMDNEM | USB_OTG_GINTMSK_IEPINT | + USB_OTG_GINTMSK_OEPINT | USB_OTG_GINTMSK_IISOIXFRM | + USB_OTG_GINTMSK_PXFRM_IISOOXFRM | USB_OTG_GINTMSK_WUIM; + + if (cfg.Sof_enable != 0U) + { + USBx->GINTMSK |= USB_OTG_GINTMSK_SOFM; + } + + if (cfg.vbus_sensing_enable == 1U) + { + USBx->GINTMSK |= (USB_OTG_GINTMSK_SRQIM | USB_OTG_GINTMSK_OTGINT); + } + + return ret; +} + +/** + * @brief USB_FlushTxFifo Flush a Tx FIFO + * @param USBx Selected device + * @param num FIFO number + * This parameter can be a value from 1 to 15 + 15 means Flush all Tx FIFOs + * @retval HAL status + */ +HAL_StatusTypeDef USB_FlushTxFifo(USB_OTG_GlobalTypeDef *USBx, uint32_t num) +{ + __IO uint32_t count = 0U; + + /* Wait for AHB master IDLE state. */ + do + { + count++; + + if (count > 200000U) + { + return HAL_TIMEOUT; + } + } while ((USBx->GRSTCTL & USB_OTG_GRSTCTL_AHBIDL) == 0U); + + /* Flush TX Fifo */ + count = 0U; + USBx->GRSTCTL = (USB_OTG_GRSTCTL_TXFFLSH | (num << 6)); + + do + { + count++; + + if (count > 200000U) + { + return HAL_TIMEOUT; + } + } while ((USBx->GRSTCTL & USB_OTG_GRSTCTL_TXFFLSH) == USB_OTG_GRSTCTL_TXFFLSH); + + return HAL_OK; +} + +/** + * @brief USB_FlushRxFifo Flush Rx FIFO + * @param USBx Selected device + * @retval HAL status + */ +HAL_StatusTypeDef USB_FlushRxFifo(USB_OTG_GlobalTypeDef *USBx) +{ + __IO uint32_t count = 0U; + + /* Wait for AHB master IDLE state. */ + do + { + count++; + + if (count > 200000U) + { + return HAL_TIMEOUT; + } + } while ((USBx->GRSTCTL & USB_OTG_GRSTCTL_AHBIDL) == 0U); + + /* Flush RX Fifo */ + count = 0U; + USBx->GRSTCTL = USB_OTG_GRSTCTL_RXFFLSH; + + do + { + count++; + + if (count > 200000U) + { + return HAL_TIMEOUT; + } + } while ((USBx->GRSTCTL & USB_OTG_GRSTCTL_RXFFLSH) == USB_OTG_GRSTCTL_RXFFLSH); + + return HAL_OK; +} + +/** + * @brief USB_SetDevSpeed Initializes the DevSpd field of DCFG register + * depending the PHY type and the enumeration speed of the device. + * @param USBx Selected device + * @param speed device speed + * This parameter can be one of these values: + * @arg USB_OTG_SPEED_HIGH: High speed mode + * @arg USB_OTG_SPEED_HIGH_IN_FULL: High speed core in Full Speed mode + * @arg USB_OTG_SPEED_FULL: Full speed mode + * @retval Hal status + */ +HAL_StatusTypeDef USB_SetDevSpeed(USB_OTG_GlobalTypeDef *USBx, uint8_t speed) +{ + uint32_t USBx_BASE = (uint32_t)USBx; + + USBx_DEVICE->DCFG |= speed; + return HAL_OK; +} + +/** + * @brief USB_GetDevSpeed Return the Dev Speed + * @param USBx Selected device + * @retval speed device speed + * This parameter can be one of these values: + * @arg USBD_HS_SPEED: High speed mode + * @arg USBD_FS_SPEED: Full speed mode + */ +uint8_t USB_GetDevSpeed(USB_OTG_GlobalTypeDef *USBx) +{ + uint32_t USBx_BASE = (uint32_t)USBx; + uint8_t speed; + uint32_t DevEnumSpeed = USBx_DEVICE->DSTS & USB_OTG_DSTS_ENUMSPD; + + if (DevEnumSpeed == DSTS_ENUMSPD_HS_PHY_30MHZ_OR_60MHZ) + { + speed = USBD_HS_SPEED; + } + else if ((DevEnumSpeed == DSTS_ENUMSPD_FS_PHY_30MHZ_OR_60MHZ) || + (DevEnumSpeed == DSTS_ENUMSPD_FS_PHY_48MHZ)) + { + speed = USBD_FS_SPEED; + } + else + { + speed = 0xFU; + } + + return speed; +} + +/** + * @brief Activate and configure an endpoint + * @param USBx Selected device + * @param ep pointer to endpoint structure + * @retval HAL status + */ +HAL_StatusTypeDef USB_ActivateEndpoint(USB_OTG_GlobalTypeDef *USBx, USB_OTG_EPTypeDef *ep) +{ + uint32_t USBx_BASE = (uint32_t)USBx; + uint32_t epnum = (uint32_t)ep->num; + + if (ep->is_in == 1U) + { + USBx_DEVICE->DAINTMSK |= USB_OTG_DAINTMSK_IEPM & (uint32_t)(1UL << (ep->num & EP_ADDR_MSK)); + + if ((USBx_INEP(epnum)->DIEPCTL & USB_OTG_DIEPCTL_USBAEP) == 0U) + { + USBx_INEP(epnum)->DIEPCTL |= (ep->maxpacket & USB_OTG_DIEPCTL_MPSIZ) | + ((uint32_t)ep->type << 18) | (epnum << 22) | + USB_OTG_DIEPCTL_SD0PID_SEVNFRM | + USB_OTG_DIEPCTL_USBAEP; + } + } + else + { + USBx_DEVICE->DAINTMSK |= USB_OTG_DAINTMSK_OEPM & ((uint32_t)(1UL << (ep->num & EP_ADDR_MSK)) << 16); + + if (((USBx_OUTEP(epnum)->DOEPCTL) & USB_OTG_DOEPCTL_USBAEP) == 0U) + { + USBx_OUTEP(epnum)->DOEPCTL |= (ep->maxpacket & USB_OTG_DOEPCTL_MPSIZ) | + ((uint32_t)ep->type << 18) | + USB_OTG_DIEPCTL_SD0PID_SEVNFRM | + USB_OTG_DOEPCTL_USBAEP; + } + } + return HAL_OK; +} + +/** + * @brief Activate and configure a dedicated endpoint + * @param USBx Selected device + * @param ep pointer to endpoint structure + * @retval HAL status + */ +HAL_StatusTypeDef USB_ActivateDedicatedEndpoint(USB_OTG_GlobalTypeDef *USBx, USB_OTG_EPTypeDef *ep) +{ + uint32_t USBx_BASE = (uint32_t)USBx; + uint32_t epnum = (uint32_t)ep->num; + + /* Read DEPCTLn register */ + if (ep->is_in == 1U) + { + if (((USBx_INEP(epnum)->DIEPCTL) & USB_OTG_DIEPCTL_USBAEP) == 0U) + { + USBx_INEP(epnum)->DIEPCTL |= (ep->maxpacket & USB_OTG_DIEPCTL_MPSIZ) | + ((uint32_t)ep->type << 18) | (epnum << 22) | + USB_OTG_DIEPCTL_SD0PID_SEVNFRM | + USB_OTG_DIEPCTL_USBAEP; + } + + USBx_DEVICE->DEACHMSK |= USB_OTG_DAINTMSK_IEPM & (uint32_t)(1UL << (ep->num & EP_ADDR_MSK)); + } + else + { + if (((USBx_OUTEP(epnum)->DOEPCTL) & USB_OTG_DOEPCTL_USBAEP) == 0U) + { + USBx_OUTEP(epnum)->DOEPCTL |= (ep->maxpacket & USB_OTG_DOEPCTL_MPSIZ) | + ((uint32_t)ep->type << 18) | (epnum << 22) | + USB_OTG_DOEPCTL_USBAEP; + } + + USBx_DEVICE->DEACHMSK |= USB_OTG_DAINTMSK_OEPM & ((uint32_t)(1UL << (ep->num & EP_ADDR_MSK)) << 16); + } + + return HAL_OK; +} + +/** + * @brief De-activate and de-initialize an endpoint + * @param USBx Selected device + * @param ep pointer to endpoint structure + * @retval HAL status + */ +HAL_StatusTypeDef USB_DeactivateEndpoint(USB_OTG_GlobalTypeDef *USBx, USB_OTG_EPTypeDef *ep) +{ + uint32_t USBx_BASE = (uint32_t)USBx; + uint32_t epnum = (uint32_t)ep->num; + + /* Read DEPCTLn register */ + if (ep->is_in == 1U) + { + if ((USBx_INEP(epnum)->DIEPCTL & USB_OTG_DIEPCTL_EPENA) == USB_OTG_DIEPCTL_EPENA) + { + USBx_INEP(epnum)->DIEPCTL |= USB_OTG_DIEPCTL_SNAK; + USBx_INEP(epnum)->DIEPCTL |= USB_OTG_DIEPCTL_EPDIS; + } + + USBx_DEVICE->DEACHMSK &= ~(USB_OTG_DAINTMSK_IEPM & (uint32_t)(1UL << (ep->num & EP_ADDR_MSK))); + USBx_DEVICE->DAINTMSK &= ~(USB_OTG_DAINTMSK_IEPM & (uint32_t)(1UL << (ep->num & EP_ADDR_MSK))); + USBx_INEP(epnum)->DIEPCTL &= ~(USB_OTG_DIEPCTL_USBAEP | + USB_OTG_DIEPCTL_MPSIZ | + USB_OTG_DIEPCTL_TXFNUM | + USB_OTG_DIEPCTL_SD0PID_SEVNFRM | + USB_OTG_DIEPCTL_EPTYP); + } + else + { + if ((USBx_OUTEP(epnum)->DOEPCTL & USB_OTG_DOEPCTL_EPENA) == USB_OTG_DOEPCTL_EPENA) + { + USBx_OUTEP(epnum)->DOEPCTL |= USB_OTG_DOEPCTL_SNAK; + USBx_OUTEP(epnum)->DOEPCTL |= USB_OTG_DOEPCTL_EPDIS; + } + + USBx_DEVICE->DEACHMSK &= ~(USB_OTG_DAINTMSK_OEPM & ((uint32_t)(1UL << (ep->num & EP_ADDR_MSK)) << 16)); + USBx_DEVICE->DAINTMSK &= ~(USB_OTG_DAINTMSK_OEPM & ((uint32_t)(1UL << (ep->num & EP_ADDR_MSK)) << 16)); + USBx_OUTEP(epnum)->DOEPCTL &= ~(USB_OTG_DOEPCTL_USBAEP | + USB_OTG_DOEPCTL_MPSIZ | + USB_OTG_DOEPCTL_SD0PID_SEVNFRM | + USB_OTG_DOEPCTL_EPTYP); + } + + return HAL_OK; +} + +/** + * @brief De-activate and de-initialize a dedicated endpoint + * @param USBx Selected device + * @param ep pointer to endpoint structure + * @retval HAL status + */ +HAL_StatusTypeDef USB_DeactivateDedicatedEndpoint(USB_OTG_GlobalTypeDef *USBx, USB_OTG_EPTypeDef *ep) +{ + uint32_t USBx_BASE = (uint32_t)USBx; + uint32_t epnum = (uint32_t)ep->num; + + /* Read DEPCTLn register */ + if (ep->is_in == 1U) + { + if ((USBx_INEP(epnum)->DIEPCTL & USB_OTG_DIEPCTL_EPENA) == USB_OTG_DIEPCTL_EPENA) + { + USBx_INEP(epnum)->DIEPCTL |= USB_OTG_DIEPCTL_SNAK; + USBx_INEP(epnum)->DIEPCTL |= USB_OTG_DIEPCTL_EPDIS; + } + + USBx_INEP(epnum)->DIEPCTL &= ~ USB_OTG_DIEPCTL_USBAEP; + USBx_DEVICE->DAINTMSK &= ~(USB_OTG_DAINTMSK_IEPM & (uint32_t)(1UL << (ep->num & EP_ADDR_MSK))); + } + else + { + if ((USBx_OUTEP(epnum)->DOEPCTL & USB_OTG_DOEPCTL_EPENA) == USB_OTG_DOEPCTL_EPENA) + { + USBx_OUTEP(epnum)->DOEPCTL |= USB_OTG_DOEPCTL_SNAK; + USBx_OUTEP(epnum)->DOEPCTL |= USB_OTG_DOEPCTL_EPDIS; + } + + USBx_OUTEP(epnum)->DOEPCTL &= ~USB_OTG_DOEPCTL_USBAEP; + USBx_DEVICE->DAINTMSK &= ~(USB_OTG_DAINTMSK_OEPM & ((uint32_t)(1UL << (ep->num & EP_ADDR_MSK)) << 16)); + } + + return HAL_OK; +} + +/** + * @brief USB_EPStartXfer : setup and starts a transfer over an EP + * @param USBx Selected device + * @param ep pointer to endpoint structure + * @param dma USB dma enabled or disabled + * This parameter can be one of these values: + * 0 : DMA feature not used + * 1 : DMA feature used + * @retval HAL status + */ +HAL_StatusTypeDef USB_EPStartXfer(USB_OTG_GlobalTypeDef *USBx, USB_OTG_EPTypeDef *ep, uint8_t dma) +{ + uint32_t USBx_BASE = (uint32_t)USBx; + uint32_t epnum = (uint32_t)ep->num; + uint16_t pktcnt; + + /* IN endpoint */ + if (ep->is_in == 1U) + { + /* Zero Length Packet? */ + if (ep->xfer_len == 0U) + { + USBx_INEP(epnum)->DIEPTSIZ &= ~(USB_OTG_DIEPTSIZ_PKTCNT); + USBx_INEP(epnum)->DIEPTSIZ |= (USB_OTG_DIEPTSIZ_PKTCNT & (1U << 19)); + USBx_INEP(epnum)->DIEPTSIZ &= ~(USB_OTG_DIEPTSIZ_XFRSIZ); + } + else + { + /* Program the transfer size and packet count + * as follows: xfersize = N * maxpacket + + * short_packet pktcnt = N + (short_packet + * exist ? 1 : 0) + */ + USBx_INEP(epnum)->DIEPTSIZ &= ~(USB_OTG_DIEPTSIZ_XFRSIZ); + USBx_INEP(epnum)->DIEPTSIZ &= ~(USB_OTG_DIEPTSIZ_PKTCNT); + + if (epnum == 0U) + { + if (ep->xfer_len > ep->maxpacket) + { + ep->xfer_len = ep->maxpacket; + } + + USBx_INEP(epnum)->DIEPTSIZ |= (USB_OTG_DIEPTSIZ_PKTCNT & (1U << 19)); + } + else + { + USBx_INEP(epnum)->DIEPTSIZ |= (USB_OTG_DIEPTSIZ_PKTCNT & + (((ep->xfer_len + ep->maxpacket - 1U) / ep->maxpacket) << 19)); + } + + USBx_INEP(epnum)->DIEPTSIZ |= (USB_OTG_DIEPTSIZ_XFRSIZ & ep->xfer_len); + + if (ep->type == EP_TYPE_ISOC) + { + USBx_INEP(epnum)->DIEPTSIZ &= ~(USB_OTG_DIEPTSIZ_MULCNT); + USBx_INEP(epnum)->DIEPTSIZ |= (USB_OTG_DIEPTSIZ_MULCNT & (1U << 29)); + } + } + + if (dma == 1U) + { + if ((uint32_t)ep->dma_addr != 0U) + { + USBx_INEP(epnum)->DIEPDMA = (uint32_t)(ep->dma_addr); + } + + if (ep->type == EP_TYPE_ISOC) + { + if ((USBx_DEVICE->DSTS & (1U << 8)) == 0U) + { + USBx_INEP(epnum)->DIEPCTL |= USB_OTG_DIEPCTL_SODDFRM; + } + else + { + USBx_INEP(epnum)->DIEPCTL |= USB_OTG_DIEPCTL_SD0PID_SEVNFRM; + } + } + + /* EP enable, IN data in FIFO */ + USBx_INEP(epnum)->DIEPCTL |= (USB_OTG_DIEPCTL_CNAK | USB_OTG_DIEPCTL_EPENA); + } + else + { + /* EP enable, IN data in FIFO */ + USBx_INEP(epnum)->DIEPCTL |= (USB_OTG_DIEPCTL_CNAK | USB_OTG_DIEPCTL_EPENA); + + if (ep->type != EP_TYPE_ISOC) + { + /* Enable the Tx FIFO Empty Interrupt for this EP */ + if (ep->xfer_len > 0U) + { + USBx_DEVICE->DIEPEMPMSK |= 1UL << (ep->num & EP_ADDR_MSK); + } + } + else + { + if ((USBx_DEVICE->DSTS & (1U << 8)) == 0U) + { + USBx_INEP(epnum)->DIEPCTL |= USB_OTG_DIEPCTL_SODDFRM; + } + else + { + USBx_INEP(epnum)->DIEPCTL |= USB_OTG_DIEPCTL_SD0PID_SEVNFRM; + } + + (void)USB_WritePacket(USBx, ep->xfer_buff, ep->num, (uint16_t)ep->xfer_len, dma); + } + } + } + else /* OUT endpoint */ + { + /* Program the transfer size and packet count as follows: + * pktcnt = N + * xfersize = N * maxpacket + */ + USBx_OUTEP(epnum)->DOEPTSIZ &= ~(USB_OTG_DOEPTSIZ_XFRSIZ); + USBx_OUTEP(epnum)->DOEPTSIZ &= ~(USB_OTG_DOEPTSIZ_PKTCNT); + + if (epnum == 0U) + { + if (ep->xfer_len > 0U) + { + ep->xfer_len = ep->maxpacket; + } + + /* Store transfer size, for EP0 this is equal to endpoint max packet size */ + ep->xfer_size = ep->maxpacket; + + USBx_OUTEP(epnum)->DOEPTSIZ |= (USB_OTG_DOEPTSIZ_XFRSIZ & ep->xfer_size); + USBx_OUTEP(epnum)->DOEPTSIZ |= (USB_OTG_DOEPTSIZ_PKTCNT & (1U << 19)); + } + else + { + if (ep->xfer_len == 0U) + { + USBx_OUTEP(epnum)->DOEPTSIZ |= (USB_OTG_DOEPTSIZ_XFRSIZ & ep->maxpacket); + USBx_OUTEP(epnum)->DOEPTSIZ |= (USB_OTG_DOEPTSIZ_PKTCNT & (1U << 19)); + } + else + { + pktcnt = (uint16_t)((ep->xfer_len + ep->maxpacket - 1U) / ep->maxpacket); + ep->xfer_size = ep->maxpacket * pktcnt; + + USBx_OUTEP(epnum)->DOEPTSIZ |= USB_OTG_DOEPTSIZ_PKTCNT & ((uint32_t)pktcnt << 19); + USBx_OUTEP(epnum)->DOEPTSIZ |= USB_OTG_DOEPTSIZ_XFRSIZ & ep->xfer_size; + } + } + + if (dma == 1U) + { + if ((uint32_t)ep->xfer_buff != 0U) + { + USBx_OUTEP(epnum)->DOEPDMA = (uint32_t)(ep->xfer_buff); + } + } + + if (ep->type == EP_TYPE_ISOC) + { + if ((USBx_DEVICE->DSTS & (1U << 8)) == 0U) + { + USBx_OUTEP(epnum)->DOEPCTL |= USB_OTG_DOEPCTL_SODDFRM; + } + else + { + USBx_OUTEP(epnum)->DOEPCTL |= USB_OTG_DOEPCTL_SD0PID_SEVNFRM; + } + } + /* EP enable */ + USBx_OUTEP(epnum)->DOEPCTL |= (USB_OTG_DOEPCTL_CNAK | USB_OTG_DOEPCTL_EPENA); + } + + return HAL_OK; +} + + +/** + * @brief USB_EPStoptXfer Stop transfer on an EP + * @param USBx usb device instance + * @param ep pointer to endpoint structure + * @retval HAL status + */ +HAL_StatusTypeDef USB_EPStopXfer(USB_OTG_GlobalTypeDef *USBx, USB_OTG_EPTypeDef *ep) +{ + __IO uint32_t count = 0U; + HAL_StatusTypeDef ret = HAL_OK; + uint32_t USBx_BASE = (uint32_t)USBx; + + /* IN endpoint */ + if (ep->is_in == 1U) + { + /* EP enable, IN data in FIFO */ + if (((USBx_INEP(ep->num)->DIEPCTL) & USB_OTG_DIEPCTL_EPENA) == USB_OTG_DIEPCTL_EPENA) + { + USBx_INEP(ep->num)->DIEPCTL |= (USB_OTG_DIEPCTL_SNAK); + USBx_INEP(ep->num)->DIEPCTL |= (USB_OTG_DIEPCTL_EPDIS); + + do + { + count++; + + if (count > 10000U) + { + ret = HAL_ERROR; + break; + } + } while (((USBx_INEP(ep->num)->DIEPCTL) & USB_OTG_DIEPCTL_EPENA) == USB_OTG_DIEPCTL_EPENA); + } + } + else /* OUT endpoint */ + { + if (((USBx_OUTEP(ep->num)->DOEPCTL) & USB_OTG_DOEPCTL_EPENA) == USB_OTG_DOEPCTL_EPENA) + { + USBx_OUTEP(ep->num)->DOEPCTL |= (USB_OTG_DOEPCTL_SNAK); + USBx_OUTEP(ep->num)->DOEPCTL |= (USB_OTG_DOEPCTL_EPDIS); + + do + { + count++; + + if (count > 10000U) + { + ret = HAL_ERROR; + break; + } + } while (((USBx_OUTEP(ep->num)->DOEPCTL) & USB_OTG_DOEPCTL_EPENA) == USB_OTG_DOEPCTL_EPENA); + } + } + + return ret; +} + + +/** + * @brief USB_WritePacket : Writes a packet into the Tx FIFO associated + * with the EP/channel + * @param USBx Selected device + * @param src pointer to source buffer + * @param ch_ep_num endpoint or host channel number + * @param len Number of bytes to write + * @param dma USB dma enabled or disabled + * This parameter can be one of these values: + * 0 : DMA feature not used + * 1 : DMA feature used + * @retval HAL status + */ +HAL_StatusTypeDef USB_WritePacket(USB_OTG_GlobalTypeDef *USBx, uint8_t *src, + uint8_t ch_ep_num, uint16_t len, uint8_t dma) +{ + uint32_t USBx_BASE = (uint32_t)USBx; + uint8_t *pSrc = src; + uint32_t count32b; + uint32_t i; + + if (dma == 0U) + { + count32b = ((uint32_t)len + 3U) / 4U; + for (i = 0U; i < count32b; i++) + { + USBx_DFIFO((uint32_t)ch_ep_num) = __UNALIGNED_UINT32_READ(pSrc); + pSrc++; + pSrc++; + pSrc++; + pSrc++; + } + } + + return HAL_OK; +} + +/** + * @brief USB_ReadPacket : read a packet from the RX FIFO + * @param USBx Selected device + * @param dest source pointer + * @param len Number of bytes to read + * @retval pointer to destination buffer + */ +void *USB_ReadPacket(USB_OTG_GlobalTypeDef *USBx, uint8_t *dest, uint16_t len) +{ + uint32_t USBx_BASE = (uint32_t)USBx; + uint8_t *pDest = dest; + uint32_t pData; + uint32_t i; + uint32_t count32b = (uint32_t)len >> 2U; + uint16_t remaining_bytes = len % 4U; + + for (i = 0U; i < count32b; i++) + { + __UNALIGNED_UINT32_WRITE(pDest, USBx_DFIFO(0U)); + pDest++; + pDest++; + pDest++; + pDest++; + } + + /* When Number of data is not word aligned, read the remaining byte */ + if (remaining_bytes != 0U) + { + i = 0U; + __UNALIGNED_UINT32_WRITE(&pData, USBx_DFIFO(0U)); + + do + { + *(uint8_t *)pDest = (uint8_t)(pData >> (8U * (uint8_t)(i))); + i++; + pDest++; + remaining_bytes--; + } while (remaining_bytes != 0U); + } + + return ((void *)pDest); +} + +/** + * @brief USB_EPSetStall : set a stall condition over an EP + * @param USBx Selected device + * @param ep pointer to endpoint structure + * @retval HAL status + */ +HAL_StatusTypeDef USB_EPSetStall(USB_OTG_GlobalTypeDef *USBx, USB_OTG_EPTypeDef *ep) +{ + uint32_t USBx_BASE = (uint32_t)USBx; + uint32_t epnum = (uint32_t)ep->num; + + if (ep->is_in == 1U) + { + if (((USBx_INEP(epnum)->DIEPCTL & USB_OTG_DIEPCTL_EPENA) == 0U) && (epnum != 0U)) + { + USBx_INEP(epnum)->DIEPCTL &= ~(USB_OTG_DIEPCTL_EPDIS); + } + USBx_INEP(epnum)->DIEPCTL |= USB_OTG_DIEPCTL_STALL; + } + else + { + if (((USBx_OUTEP(epnum)->DOEPCTL & USB_OTG_DOEPCTL_EPENA) == 0U) && (epnum != 0U)) + { + USBx_OUTEP(epnum)->DOEPCTL &= ~(USB_OTG_DOEPCTL_EPDIS); + } + USBx_OUTEP(epnum)->DOEPCTL |= USB_OTG_DOEPCTL_STALL; + } + + return HAL_OK; +} + +/** + * @brief USB_EPClearStall : Clear a stall condition over an EP + * @param USBx Selected device + * @param ep pointer to endpoint structure + * @retval HAL status + */ +HAL_StatusTypeDef USB_EPClearStall(USB_OTG_GlobalTypeDef *USBx, USB_OTG_EPTypeDef *ep) +{ + uint32_t USBx_BASE = (uint32_t)USBx; + uint32_t epnum = (uint32_t)ep->num; + + if (ep->is_in == 1U) + { + USBx_INEP(epnum)->DIEPCTL &= ~USB_OTG_DIEPCTL_STALL; + if ((ep->type == EP_TYPE_INTR) || (ep->type == EP_TYPE_BULK)) + { + USBx_INEP(epnum)->DIEPCTL |= USB_OTG_DIEPCTL_SD0PID_SEVNFRM; /* DATA0 */ + } + } + else + { + USBx_OUTEP(epnum)->DOEPCTL &= ~USB_OTG_DOEPCTL_STALL; + if ((ep->type == EP_TYPE_INTR) || (ep->type == EP_TYPE_BULK)) + { + USBx_OUTEP(epnum)->DOEPCTL |= USB_OTG_DOEPCTL_SD0PID_SEVNFRM; /* DATA0 */ + } + } + return HAL_OK; +} + +/** + * @brief USB_StopDevice : Stop the usb device mode + * @param USBx Selected device + * @retval HAL status + */ +HAL_StatusTypeDef USB_StopDevice(USB_OTG_GlobalTypeDef *USBx) +{ + HAL_StatusTypeDef ret; + uint32_t USBx_BASE = (uint32_t)USBx; + uint32_t i; + + /* Clear Pending interrupt */ + for (i = 0U; i < 15U; i++) + { + USBx_INEP(i)->DIEPINT = 0xFB7FU; + USBx_OUTEP(i)->DOEPINT = 0xFB7FU; + } + + /* Clear interrupt masks */ + USBx_DEVICE->DIEPMSK = 0U; + USBx_DEVICE->DOEPMSK = 0U; + USBx_DEVICE->DAINTMSK = 0U; + + /* Flush the FIFO */ + ret = USB_FlushRxFifo(USBx); + if (ret != HAL_OK) + { + return ret; + } + + ret = USB_FlushTxFifo(USBx, 0x10U); + if (ret != HAL_OK) + { + return ret; + } + + return ret; +} + +/** + * @brief USB_SetDevAddress : Stop the usb device mode + * @param USBx Selected device + * @param address new device address to be assigned + * This parameter can be a value from 0 to 255 + * @retval HAL status + */ +HAL_StatusTypeDef USB_SetDevAddress(USB_OTG_GlobalTypeDef *USBx, uint8_t address) +{ + uint32_t USBx_BASE = (uint32_t)USBx; + + USBx_DEVICE->DCFG &= ~(USB_OTG_DCFG_DAD); + USBx_DEVICE->DCFG |= ((uint32_t)address << 4) & USB_OTG_DCFG_DAD; + + return HAL_OK; +} + +/** + * @brief USB_DevConnect : Connect the USB device by enabling Rpu + * @param USBx Selected device + * @retval HAL status + */ +HAL_StatusTypeDef USB_DevConnect(USB_OTG_GlobalTypeDef *USBx) +{ + uint32_t USBx_BASE = (uint32_t)USBx; + + /* In case phy is stopped, ensure to ungate and restore the phy CLK */ + USBx_PCGCCTL &= ~(USB_OTG_PCGCCTL_STOPCLK | USB_OTG_PCGCCTL_GATECLK); + + USBx_DEVICE->DCTL &= ~USB_OTG_DCTL_SDIS; + + return HAL_OK; +} + +/** + * @brief USB_DevDisconnect : Disconnect the USB device by disabling Rpu + * @param USBx Selected device + * @retval HAL status + */ +HAL_StatusTypeDef USB_DevDisconnect(USB_OTG_GlobalTypeDef *USBx) +{ + uint32_t USBx_BASE = (uint32_t)USBx; + + /* In case phy is stopped, ensure to ungate and restore the phy CLK */ + USBx_PCGCCTL &= ~(USB_OTG_PCGCCTL_STOPCLK | USB_OTG_PCGCCTL_GATECLK); + + USBx_DEVICE->DCTL |= USB_OTG_DCTL_SDIS; + + return HAL_OK; +} + +/** + * @brief USB_ReadInterrupts: return the global USB interrupt status + * @param USBx Selected device + * @retval USB Global Interrupt status + */ +uint32_t USB_ReadInterrupts(USB_OTG_GlobalTypeDef *USBx) +{ + uint32_t tmpreg; + + tmpreg = USBx->GINTSTS; + tmpreg &= USBx->GINTMSK; + + return tmpreg; +} + +/** + * @brief USB_ReadChInterrupts: return USB channel interrupt status + * @param USBx Selected device + * @param chnum Channel number + * @retval USB Channel Interrupt status + */ +uint32_t USB_ReadChInterrupts(USB_OTG_GlobalTypeDef *USBx, uint8_t chnum) +{ + uint32_t USBx_BASE = (uint32_t)USBx; + uint32_t tmpreg; + + tmpreg = USBx_HC(chnum)->HCINT; + tmpreg &= USBx_HC(chnum)->HCINTMSK; + + return tmpreg; +} + +/** + * @brief USB_ReadDevAllOutEpInterrupt: return the USB device OUT endpoints interrupt status + * @param USBx Selected device + * @retval USB Device OUT EP interrupt status + */ +uint32_t USB_ReadDevAllOutEpInterrupt(USB_OTG_GlobalTypeDef *USBx) +{ + uint32_t USBx_BASE = (uint32_t)USBx; + uint32_t tmpreg; + + tmpreg = USBx_DEVICE->DAINT; + tmpreg &= USBx_DEVICE->DAINTMSK; + + return ((tmpreg & 0xffff0000U) >> 16); +} + +/** + * @brief USB_ReadDevAllInEpInterrupt: return the USB device IN endpoints interrupt status + * @param USBx Selected device + * @retval USB Device IN EP interrupt status + */ +uint32_t USB_ReadDevAllInEpInterrupt(USB_OTG_GlobalTypeDef *USBx) +{ + uint32_t USBx_BASE = (uint32_t)USBx; + uint32_t tmpreg; + + tmpreg = USBx_DEVICE->DAINT; + tmpreg &= USBx_DEVICE->DAINTMSK; + + return ((tmpreg & 0xFFFFU)); +} + +/** + * @brief Returns Device OUT EP Interrupt register + * @param USBx Selected device + * @param epnum endpoint number + * This parameter can be a value from 0 to 15 + * @retval Device OUT EP Interrupt register + */ +uint32_t USB_ReadDevOutEPInterrupt(USB_OTG_GlobalTypeDef *USBx, uint8_t epnum) +{ + uint32_t USBx_BASE = (uint32_t)USBx; + uint32_t tmpreg; + + tmpreg = USBx_OUTEP((uint32_t)epnum)->DOEPINT; + tmpreg &= USBx_DEVICE->DOEPMSK; + + return tmpreg; +} + +/** + * @brief Returns Device IN EP Interrupt register + * @param USBx Selected device + * @param epnum endpoint number + * This parameter can be a value from 0 to 15 + * @retval Device IN EP Interrupt register + */ +uint32_t USB_ReadDevInEPInterrupt(USB_OTG_GlobalTypeDef *USBx, uint8_t epnum) +{ + uint32_t USBx_BASE = (uint32_t)USBx; + uint32_t tmpreg; + uint32_t msk; + uint32_t emp; + + msk = USBx_DEVICE->DIEPMSK; + emp = USBx_DEVICE->DIEPEMPMSK; + msk |= ((emp >> (epnum & EP_ADDR_MSK)) & 0x1U) << 7; + tmpreg = USBx_INEP((uint32_t)epnum)->DIEPINT & msk; + + return tmpreg; +} + +/** + * @brief USB_ClearInterrupts: clear a USB interrupt + * @param USBx Selected device + * @param interrupt flag + * @retval None + */ +void USB_ClearInterrupts(USB_OTG_GlobalTypeDef *USBx, uint32_t interrupt) +{ + USBx->GINTSTS |= interrupt; +} + +/** + * @brief Returns USB core mode + * @param USBx Selected device + * @retval return core mode : Host or Device + * This parameter can be one of these values: + * 0 : Host + * 1 : Device + */ +uint32_t USB_GetMode(USB_OTG_GlobalTypeDef *USBx) +{ + return ((USBx->GINTSTS) & 0x1U); +} + +/** + * @brief Activate EP0 for Setup transactions + * @param USBx Selected device + * @retval HAL status + */ +HAL_StatusTypeDef USB_ActivateSetup(USB_OTG_GlobalTypeDef *USBx) +{ + uint32_t USBx_BASE = (uint32_t)USBx; + + /* Set the MPS of the IN EP0 to 64 bytes */ + USBx_INEP(0U)->DIEPCTL &= ~USB_OTG_DIEPCTL_MPSIZ; + + USBx_DEVICE->DCTL |= USB_OTG_DCTL_CGINAK; + + return HAL_OK; +} + +/** + * @brief Prepare the EP0 to start the first control setup + * @param USBx Selected device + * @param dma USB dma enabled or disabled + * This parameter can be one of these values: + * 0 : DMA feature not used + * 1 : DMA feature used + * @param psetup pointer to setup packet + * @retval HAL status + */ +HAL_StatusTypeDef USB_EP0_OutStart(USB_OTG_GlobalTypeDef *USBx, uint8_t dma, uint8_t *psetup) +{ + uint32_t USBx_BASE = (uint32_t)USBx; + uint32_t gSNPSiD = *(__IO uint32_t *)(&USBx->CID + 0x1U); + + if (gSNPSiD > USB_OTG_CORE_ID_300A) + { + if ((USBx_OUTEP(0U)->DOEPCTL & USB_OTG_DOEPCTL_EPENA) == USB_OTG_DOEPCTL_EPENA) + { + return HAL_OK; + } + } + + USBx_OUTEP(0U)->DOEPTSIZ = 0U; + USBx_OUTEP(0U)->DOEPTSIZ |= (USB_OTG_DOEPTSIZ_PKTCNT & (1U << 19)); + USBx_OUTEP(0U)->DOEPTSIZ |= (3U * 8U); + USBx_OUTEP(0U)->DOEPTSIZ |= USB_OTG_DOEPTSIZ_STUPCNT; + + if (dma == 1U) + { + USBx_OUTEP(0U)->DOEPDMA = (uint32_t)psetup; + /* EP enable */ + USBx_OUTEP(0U)->DOEPCTL |= USB_OTG_DOEPCTL_EPENA | USB_OTG_DOEPCTL_USBAEP; + } + + return HAL_OK; +} + +/** + * @brief Reset the USB Core (needed after USB clock settings change) + * @param USBx Selected device + * @retval HAL status + */ +static HAL_StatusTypeDef USB_CoreReset(USB_OTG_GlobalTypeDef *USBx) +{ + __IO uint32_t count = 0U; + + /* Wait for AHB master IDLE state. */ + do + { + count++; + + if (count > 200000U) + { + return HAL_TIMEOUT; + } + } while ((USBx->GRSTCTL & USB_OTG_GRSTCTL_AHBIDL) == 0U); + + /* Core Soft Reset */ + count = 0U; + USBx->GRSTCTL |= USB_OTG_GRSTCTL_CSRST; + + do + { + count++; + + if (count > 200000U) + { + return HAL_TIMEOUT; + } + } while ((USBx->GRSTCTL & USB_OTG_GRSTCTL_CSRST) == USB_OTG_GRSTCTL_CSRST); + + return HAL_OK; +} + +/** + * @brief USB_HostInit : Initializes the USB OTG controller registers + * for Host mode + * @param USBx Selected device + * @param cfg pointer to a USB_OTG_CfgTypeDef structure that contains + * the configuration information for the specified USBx peripheral. + * @retval HAL status + */ +HAL_StatusTypeDef USB_HostInit(USB_OTG_GlobalTypeDef *USBx, USB_OTG_CfgTypeDef cfg) +{ + HAL_StatusTypeDef ret = HAL_OK; + uint32_t USBx_BASE = (uint32_t)USBx; + uint32_t i; + + /* Restart the Phy Clock */ + USBx_PCGCCTL = 0U; + + /* Disable VBUS sensing */ + USBx->GCCFG &= ~(USB_OTG_GCCFG_VBDEN); + + /* Disable Battery chargin detector */ + USBx->GCCFG &= ~(USB_OTG_GCCFG_BCDEN); + + + if ((USBx->CID & (0x1U << 8)) != 0U) + { + if (cfg.speed == USBH_FSLS_SPEED) + { + /* Force Device Enumeration to FS/LS mode only */ + USBx_HOST->HCFG |= USB_OTG_HCFG_FSLSS; + } + else + { + /* Set default Max speed support */ + USBx_HOST->HCFG &= ~(USB_OTG_HCFG_FSLSS); + } + } + else + { + /* Set default Max speed support */ + USBx_HOST->HCFG &= ~(USB_OTG_HCFG_FSLSS); + } + + /* Make sure the FIFOs are flushed. */ + if (USB_FlushTxFifo(USBx, 0x10U) != HAL_OK) /* all Tx FIFOs */ + { + ret = HAL_ERROR; + } + + if (USB_FlushRxFifo(USBx) != HAL_OK) + { + ret = HAL_ERROR; + } + + /* Clear all pending HC Interrupts */ + for (i = 0U; i < cfg.Host_channels; i++) + { + USBx_HC(i)->HCINT = CLEAR_INTERRUPT_MASK; + USBx_HC(i)->HCINTMSK = 0U; + } + + /* Disable all interrupts. */ + USBx->GINTMSK = 0U; + + /* Clear any pending interrupts */ + USBx->GINTSTS = CLEAR_INTERRUPT_MASK; + + if ((USBx->CID & (0x1U << 8)) != 0U) + { + /* set Rx FIFO size */ + USBx->GRXFSIZ = 0x200U; + USBx->DIEPTXF0_HNPTXFSIZ = (uint32_t)(((0x100U << 16) & USB_OTG_NPTXFD) | 0x200U); + USBx->HPTXFSIZ = (uint32_t)(((0xE0U << 16) & USB_OTG_HPTXFSIZ_PTXFD) | 0x300U); + } + else + { + /* set Rx FIFO size */ + USBx->GRXFSIZ = 0x80U; + USBx->DIEPTXF0_HNPTXFSIZ = (uint32_t)(((0x60U << 16) & USB_OTG_NPTXFD) | 0x80U); + USBx->HPTXFSIZ = (uint32_t)(((0x40U << 16)& USB_OTG_HPTXFSIZ_PTXFD) | 0xE0U); + } + + /* Enable the common interrupts */ + if (cfg.dma_enable == 0U) + { + USBx->GINTMSK |= USB_OTG_GINTMSK_RXFLVLM; + } + + /* Enable interrupts matching to the Host mode ONLY */ + USBx->GINTMSK |= (USB_OTG_GINTMSK_PRTIM | USB_OTG_GINTMSK_HCIM | \ + USB_OTG_GINTMSK_SOFM | USB_OTG_GINTSTS_DISCINT | \ + USB_OTG_GINTMSK_PXFRM_IISOOXFRM | USB_OTG_GINTMSK_WUIM); + + return ret; +} + +/** + * @brief USB_InitFSLSPClkSel : Initializes the FSLSPClkSel field of the + * HCFG register on the PHY type and set the right frame interval + * @param USBx Selected device + * @param freq clock frequency + * This parameter can be one of these values: + * HCFG_48_MHZ : Full Speed 48 MHz Clock + * HCFG_6_MHZ : Low Speed 6 MHz Clock + * @retval HAL status + */ +HAL_StatusTypeDef USB_InitFSLSPClkSel(USB_OTG_GlobalTypeDef *USBx, uint8_t freq) +{ + uint32_t USBx_BASE = (uint32_t)USBx; + + USBx_HOST->HCFG &= ~(USB_OTG_HCFG_FSLSPCS); + USBx_HOST->HCFG |= (uint32_t)freq & USB_OTG_HCFG_FSLSPCS; + + if (freq == HCFG_48_MHZ) + { + USBx_HOST->HFIR = HFIR_48_MHZ; + } + else if (freq == HCFG_6_MHZ) + { + USBx_HOST->HFIR = HFIR_6_MHZ; + } + else + { + return HAL_ERROR; + } + + return HAL_OK; +} + +/** + * @brief USB_OTG_ResetPort : Reset Host Port + * @param USBx Selected device + * @retval HAL status + * @note (1)The application must wait at least 10 ms + * before clearing the reset bit. + */ +HAL_StatusTypeDef USB_ResetPort(USB_OTG_GlobalTypeDef *USBx) +{ + uint32_t USBx_BASE = (uint32_t)USBx; + + __IO uint32_t hprt0 = 0U; + + hprt0 = USBx_HPRT0; + + hprt0 &= ~(USB_OTG_HPRT_PENA | USB_OTG_HPRT_PCDET | + USB_OTG_HPRT_PENCHNG | USB_OTG_HPRT_POCCHNG); + + USBx_HPRT0 = (USB_OTG_HPRT_PRST | hprt0); + HAL_Delay(100U); /* See Note #1 */ + USBx_HPRT0 = ((~USB_OTG_HPRT_PRST) & hprt0); + HAL_Delay(10U); + + return HAL_OK; +} + +/** + * @brief USB_DriveVbus : activate or de-activate vbus + * @param state VBUS state + * This parameter can be one of these values: + * 0 : Deactivate VBUS + * 1 : Activate VBUS + * @retval HAL status + */ +HAL_StatusTypeDef USB_DriveVbus(USB_OTG_GlobalTypeDef *USBx, uint8_t state) +{ + uint32_t USBx_BASE = (uint32_t)USBx; + __IO uint32_t hprt0 = 0U; + + hprt0 = USBx_HPRT0; + + hprt0 &= ~(USB_OTG_HPRT_PENA | USB_OTG_HPRT_PCDET | + USB_OTG_HPRT_PENCHNG | USB_OTG_HPRT_POCCHNG); + + if (((hprt0 & USB_OTG_HPRT_PPWR) == 0U) && (state == 1U)) + { + USBx_HPRT0 = (USB_OTG_HPRT_PPWR | hprt0); + } + if (((hprt0 & USB_OTG_HPRT_PPWR) == USB_OTG_HPRT_PPWR) && (state == 0U)) + { + USBx_HPRT0 = ((~USB_OTG_HPRT_PPWR) & hprt0); + } + return HAL_OK; +} + +/** + * @brief Return Host Core speed + * @param USBx Selected device + * @retval speed : Host speed + * This parameter can be one of these values: + * @arg HCD_SPEED_HIGH: High speed mode + * @arg HCD_SPEED_FULL: Full speed mode + * @arg HCD_SPEED_LOW: Low speed mode + */ +uint32_t USB_GetHostSpeed(USB_OTG_GlobalTypeDef *USBx) +{ + uint32_t USBx_BASE = (uint32_t)USBx; + __IO uint32_t hprt0 = 0U; + + hprt0 = USBx_HPRT0; + return ((hprt0 & USB_OTG_HPRT_PSPD) >> 17); +} + +/** + * @brief Return Host Current Frame number + * @param USBx Selected device + * @retval current frame number + */ +uint32_t USB_GetCurrentFrame(USB_OTG_GlobalTypeDef *USBx) +{ + uint32_t USBx_BASE = (uint32_t)USBx; + + return (USBx_HOST->HFNUM & USB_OTG_HFNUM_FRNUM); +} + +/** + * @brief Initialize a host channel + * @param USBx Selected device + * @param ch_num Channel number + * This parameter can be a value from 1 to 15 + * @param epnum Endpoint number + * This parameter can be a value from 1 to 15 + * @param dev_address Current device address + * This parameter can be a value from 0 to 255 + * @param speed Current device speed + * This parameter can be one of these values: + * @arg USB_OTG_SPEED_HIGH: High speed mode + * @arg USB_OTG_SPEED_FULL: Full speed mode + * @arg USB_OTG_SPEED_LOW: Low speed mode + * @param ep_type Endpoint Type + * This parameter can be one of these values: + * @arg EP_TYPE_CTRL: Control type + * @arg EP_TYPE_ISOC: Isochronous type + * @arg EP_TYPE_BULK: Bulk type + * @arg EP_TYPE_INTR: Interrupt type + * @param mps Max Packet Size + * This parameter can be a value from 0 to 32K + * @retval HAL state + */ +HAL_StatusTypeDef USB_HC_Init(USB_OTG_GlobalTypeDef *USBx, uint8_t ch_num, + uint8_t epnum, uint8_t dev_address, uint8_t speed, + uint8_t ep_type, uint16_t mps) +{ + HAL_StatusTypeDef ret = HAL_OK; + uint32_t USBx_BASE = (uint32_t)USBx; + uint32_t HCcharEpDir; + uint32_t HCcharLowSpeed; + uint32_t HostCoreSpeed; + + /* Clear old interrupt conditions for this host channel. */ + USBx_HC((uint32_t)ch_num)->HCINT = CLEAR_INTERRUPT_MASK; + + /* Enable channel interrupts required for this transfer. */ + switch (ep_type) + { + case EP_TYPE_CTRL: + case EP_TYPE_BULK: + USBx_HC((uint32_t)ch_num)->HCINTMSK = USB_OTG_HCINTMSK_XFRCM | + USB_OTG_HCINTMSK_STALLM | + USB_OTG_HCINTMSK_TXERRM | + USB_OTG_HCINTMSK_DTERRM | + USB_OTG_HCINTMSK_AHBERR | + USB_OTG_HCINTMSK_NAKM; + + if ((epnum & 0x80U) == 0x80U) + { + USBx_HC((uint32_t)ch_num)->HCINTMSK |= USB_OTG_HCINTMSK_BBERRM; + } + else + { + if ((USBx->CID & (0x1U << 8)) != 0U) + { + USBx_HC((uint32_t)ch_num)->HCINTMSK |= USB_OTG_HCINTMSK_NYET | + USB_OTG_HCINTMSK_ACKM; + } + } + break; + + case EP_TYPE_INTR: + USBx_HC((uint32_t)ch_num)->HCINTMSK = USB_OTG_HCINTMSK_XFRCM | + USB_OTG_HCINTMSK_STALLM | + USB_OTG_HCINTMSK_TXERRM | + USB_OTG_HCINTMSK_DTERRM | + USB_OTG_HCINTMSK_NAKM | + USB_OTG_HCINTMSK_AHBERR | + USB_OTG_HCINTMSK_FRMORM; + + if ((epnum & 0x80U) == 0x80U) + { + USBx_HC((uint32_t)ch_num)->HCINTMSK |= USB_OTG_HCINTMSK_BBERRM; + } + + break; + + case EP_TYPE_ISOC: + USBx_HC((uint32_t)ch_num)->HCINTMSK = USB_OTG_HCINTMSK_XFRCM | + USB_OTG_HCINTMSK_ACKM | + USB_OTG_HCINTMSK_AHBERR | + USB_OTG_HCINTMSK_FRMORM; + + if ((epnum & 0x80U) == 0x80U) + { + USBx_HC((uint32_t)ch_num)->HCINTMSK |= (USB_OTG_HCINTMSK_TXERRM | USB_OTG_HCINTMSK_BBERRM); + } + break; + + default: + ret = HAL_ERROR; + break; + } + + /* Enable host channel Halt interrupt */ + USBx_HC((uint32_t)ch_num)->HCINTMSK |= USB_OTG_HCINTMSK_CHHM; + + /* Enable the top level host channel interrupt. */ + USBx_HOST->HAINTMSK |= 1UL << (ch_num & 0xFU); + + /* Make sure host channel interrupts are enabled. */ + USBx->GINTMSK |= USB_OTG_GINTMSK_HCIM; + + /* Program the HCCHAR register */ + if ((epnum & 0x80U) == 0x80U) + { + HCcharEpDir = (0x1U << 15) & USB_OTG_HCCHAR_EPDIR; + } + else + { + HCcharEpDir = 0U; + } + + HostCoreSpeed = USB_GetHostSpeed(USBx); + + /* LS device plugged to HUB */ + if ((speed == HPRT0_PRTSPD_LOW_SPEED) && (HostCoreSpeed != HPRT0_PRTSPD_LOW_SPEED)) + { + HCcharLowSpeed = (0x1U << 17) & USB_OTG_HCCHAR_LSDEV; + } + else + { + HCcharLowSpeed = 0U; + } + + USBx_HC((uint32_t)ch_num)->HCCHAR = (((uint32_t)dev_address << 22) & USB_OTG_HCCHAR_DAD) | + ((((uint32_t)epnum & 0x7FU) << 11) & USB_OTG_HCCHAR_EPNUM) | + (((uint32_t)ep_type << 18) & USB_OTG_HCCHAR_EPTYP) | + ((uint32_t)mps & USB_OTG_HCCHAR_MPSIZ) | + USB_OTG_HCCHAR_MC_0 | HCcharEpDir | HCcharLowSpeed; + + if ((ep_type == EP_TYPE_INTR) || (ep_type == EP_TYPE_ISOC)) + { + USBx_HC((uint32_t)ch_num)->HCCHAR |= USB_OTG_HCCHAR_ODDFRM; + } + + return ret; +} + +/** + * @brief Start a transfer over a host channel + * @param USBx Selected device + * @param hc pointer to host channel structure + * @param dma USB dma enabled or disabled + * This parameter can be one of these values: + * 0 : DMA feature not used + * 1 : DMA feature used + * @retval HAL state + */ +HAL_StatusTypeDef USB_HC_StartXfer(USB_OTG_GlobalTypeDef *USBx, USB_OTG_HCTypeDef *hc, uint8_t dma) +{ + uint32_t USBx_BASE = (uint32_t)USBx; + uint32_t ch_num = (uint32_t)hc->ch_num; + __IO uint32_t tmpreg; + uint8_t is_oddframe; + uint16_t len_words; + uint16_t num_packets; + uint16_t max_hc_pkt_count = HC_MAX_PKT_CNT; + + if (((USBx->CID & (0x1U << 8)) != 0U) && (hc->speed == USBH_HS_SPEED)) + { + /* in DMA mode host Core automatically issues ping in case of NYET/NAK */ + if ((dma == 1U) && ((hc->ep_type == EP_TYPE_CTRL) || (hc->ep_type == EP_TYPE_BULK))) + { + USBx_HC((uint32_t)ch_num)->HCINTMSK &= ~(USB_OTG_HCINTMSK_NYET | + USB_OTG_HCINTMSK_ACKM | + USB_OTG_HCINTMSK_NAKM); + } + + if ((dma == 0U) && (hc->do_ping == 1U)) + { + (void)USB_DoPing(USBx, hc->ch_num); + return HAL_OK; + } + + } + + /* Compute the expected number of packets associated to the transfer */ + if (hc->xfer_len > 0U) + { + num_packets = (uint16_t)((hc->xfer_len + hc->max_packet - 1U) / hc->max_packet); + + if (num_packets > max_hc_pkt_count) + { + num_packets = max_hc_pkt_count; + hc->XferSize = (uint32_t)num_packets * hc->max_packet; + } + } + else + { + num_packets = 1U; + } + + /* + * For IN channel HCTSIZ.XferSize is expected to be an integer multiple of + * max_packet size. + */ + if (hc->ep_is_in != 0U) + { + hc->XferSize = (uint32_t)num_packets * hc->max_packet; + } + else + { + hc->XferSize = hc->xfer_len; + } + + /* Initialize the HCTSIZn register */ + USBx_HC(ch_num)->HCTSIZ = (hc->XferSize & USB_OTG_HCTSIZ_XFRSIZ) | + (((uint32_t)num_packets << 19) & USB_OTG_HCTSIZ_PKTCNT) | + (((uint32_t)hc->data_pid << 29) & USB_OTG_HCTSIZ_DPID); + + if (dma != 0U) + { + /* xfer_buff MUST be 32-bits aligned */ + USBx_HC(ch_num)->HCDMA = (uint32_t)hc->xfer_buff; + } + + is_oddframe = (((uint32_t)USBx_HOST->HFNUM & 0x01U) != 0U) ? 0U : 1U; + USBx_HC(ch_num)->HCCHAR &= ~USB_OTG_HCCHAR_ODDFRM; + USBx_HC(ch_num)->HCCHAR |= (uint32_t)is_oddframe << 29; + + /* Set host channel enable */ + tmpreg = USBx_HC(ch_num)->HCCHAR; + tmpreg &= ~USB_OTG_HCCHAR_CHDIS; + + /* make sure to set the correct ep direction */ + if (hc->ep_is_in != 0U) + { + tmpreg |= USB_OTG_HCCHAR_EPDIR; + } + else + { + tmpreg &= ~USB_OTG_HCCHAR_EPDIR; + } + tmpreg |= USB_OTG_HCCHAR_CHENA; + USBx_HC(ch_num)->HCCHAR = tmpreg; + + if (dma != 0U) /* dma mode */ + { + return HAL_OK; + } + + if ((hc->ep_is_in == 0U) && (hc->xfer_len > 0U)) + { + switch (hc->ep_type) + { + /* Non periodic transfer */ + case EP_TYPE_CTRL: + case EP_TYPE_BULK: + + len_words = (uint16_t)((hc->xfer_len + 3U) / 4U); + + /* check if there is enough space in FIFO space */ + if (len_words > (USBx->HNPTXSTS & 0xFFFFU)) + { + /* need to process data in nptxfempty interrupt */ + USBx->GINTMSK |= USB_OTG_GINTMSK_NPTXFEM; + } + break; + + /* Periodic transfer */ + case EP_TYPE_INTR: + case EP_TYPE_ISOC: + len_words = (uint16_t)((hc->xfer_len + 3U) / 4U); + /* check if there is enough space in FIFO space */ + if (len_words > (USBx_HOST->HPTXSTS & 0xFFFFU)) /* split the transfer */ + { + /* need to process data in ptxfempty interrupt */ + USBx->GINTMSK |= USB_OTG_GINTMSK_PTXFEM; + } + break; + + default: + break; + } + + /* Write packet into the Tx FIFO. */ + (void)USB_WritePacket(USBx, hc->xfer_buff, hc->ch_num, (uint16_t)hc->xfer_len, 0); + } + + return HAL_OK; +} + +/** + * @brief Read all host channel interrupts status + * @param USBx Selected device + * @retval HAL state + */ +uint32_t USB_HC_ReadInterrupt(USB_OTG_GlobalTypeDef *USBx) +{ + uint32_t USBx_BASE = (uint32_t)USBx; + + return ((USBx_HOST->HAINT) & 0xFFFFU); +} + +/** + * @brief Halt a host channel + * @param USBx Selected device + * @param hc_num Host Channel number + * This parameter can be a value from 1 to 15 + * @retval HAL state + */ +HAL_StatusTypeDef USB_HC_Halt(USB_OTG_GlobalTypeDef *USBx, uint8_t hc_num) +{ + uint32_t USBx_BASE = (uint32_t)USBx; + uint32_t hcnum = (uint32_t)hc_num; + __IO uint32_t count = 0U; + uint32_t HcEpType = (USBx_HC(hcnum)->HCCHAR & USB_OTG_HCCHAR_EPTYP) >> 18; + uint32_t ChannelEna = (USBx_HC(hcnum)->HCCHAR & USB_OTG_HCCHAR_CHENA) >> 31; + + if (((USBx->GAHBCFG & USB_OTG_GAHBCFG_DMAEN) == USB_OTG_GAHBCFG_DMAEN) && + (ChannelEna == 0U)) + { + return HAL_OK; + } + + /* Check for space in the request queue to issue the halt. */ + if ((HcEpType == HCCHAR_CTRL) || (HcEpType == HCCHAR_BULK)) + { + USBx_HC(hcnum)->HCCHAR |= USB_OTG_HCCHAR_CHDIS; + + if ((USBx->GAHBCFG & USB_OTG_GAHBCFG_DMAEN) == 0U) + { + if ((USBx->HNPTXSTS & (0xFFU << 16)) == 0U) + { + USBx_HC(hcnum)->HCCHAR &= ~USB_OTG_HCCHAR_CHENA; + USBx_HC(hcnum)->HCCHAR |= USB_OTG_HCCHAR_CHENA; + do + { + count++; + + if (count > 1000U) + { + break; + } + } while ((USBx_HC(hcnum)->HCCHAR & USB_OTG_HCCHAR_CHENA) == USB_OTG_HCCHAR_CHENA); + } + else + { + USBx_HC(hcnum)->HCCHAR |= USB_OTG_HCCHAR_CHENA; + } + } + } + else + { + USBx_HC(hcnum)->HCCHAR |= USB_OTG_HCCHAR_CHDIS; + + if ((USBx_HOST->HPTXSTS & (0xFFU << 16)) == 0U) + { + USBx_HC(hcnum)->HCCHAR &= ~USB_OTG_HCCHAR_CHENA; + USBx_HC(hcnum)->HCCHAR |= USB_OTG_HCCHAR_CHENA; + do + { + count++; + + if (count > 1000U) + { + break; + } + } while ((USBx_HC(hcnum)->HCCHAR & USB_OTG_HCCHAR_CHENA) == USB_OTG_HCCHAR_CHENA); + } + else + { + USBx_HC(hcnum)->HCCHAR |= USB_OTG_HCCHAR_CHENA; + } + } + + return HAL_OK; +} + +/** + * @brief Initiate Do Ping protocol + * @param USBx Selected device + * @param hc_num Host Channel number + * This parameter can be a value from 1 to 15 + * @retval HAL state + */ +HAL_StatusTypeDef USB_DoPing(USB_OTG_GlobalTypeDef *USBx, uint8_t ch_num) +{ + uint32_t USBx_BASE = (uint32_t)USBx; + uint32_t chnum = (uint32_t)ch_num; + uint32_t num_packets = 1U; + uint32_t tmpreg; + + USBx_HC(chnum)->HCTSIZ = ((num_packets << 19) & USB_OTG_HCTSIZ_PKTCNT) | + USB_OTG_HCTSIZ_DOPING; + + /* Set host channel enable */ + tmpreg = USBx_HC(chnum)->HCCHAR; + tmpreg &= ~USB_OTG_HCCHAR_CHDIS; + tmpreg |= USB_OTG_HCCHAR_CHENA; + USBx_HC(chnum)->HCCHAR = tmpreg; + + return HAL_OK; +} + +/** + * @brief Stop Host Core + * @param USBx Selected device + * @retval HAL state + */ +HAL_StatusTypeDef USB_StopHost(USB_OTG_GlobalTypeDef *USBx) +{ + HAL_StatusTypeDef ret = HAL_OK; + uint32_t USBx_BASE = (uint32_t)USBx; + __IO uint32_t count = 0U; + uint32_t value; + uint32_t i; + + (void)USB_DisableGlobalInt(USBx); + + /* Flush USB FIFO */ + if (USB_FlushTxFifo(USBx, 0x10U) != HAL_OK) /* all Tx FIFOs */ + { + ret = HAL_ERROR; + } + + if (USB_FlushRxFifo(USBx) != HAL_OK) + { + ret = HAL_ERROR; + } + + /* Flush out any leftover queued requests. */ + for (i = 0U; i <= 15U; i++) + { + value = USBx_HC(i)->HCCHAR; + value |= USB_OTG_HCCHAR_CHDIS; + value &= ~USB_OTG_HCCHAR_CHENA; + value &= ~USB_OTG_HCCHAR_EPDIR; + USBx_HC(i)->HCCHAR = value; + } + + /* Halt all channels to put them into a known state. */ + for (i = 0U; i <= 15U; i++) + { + value = USBx_HC(i)->HCCHAR; + value |= USB_OTG_HCCHAR_CHDIS; + value |= USB_OTG_HCCHAR_CHENA; + value &= ~USB_OTG_HCCHAR_EPDIR; + USBx_HC(i)->HCCHAR = value; + + do + { + count++; + + if (count > 1000U) + { + break; + } + } while ((USBx_HC(i)->HCCHAR & USB_OTG_HCCHAR_CHENA) == USB_OTG_HCCHAR_CHENA); + } + + /* Clear any pending Host interrupts */ + USBx_HOST->HAINT = CLEAR_INTERRUPT_MASK; + USBx->GINTSTS = CLEAR_INTERRUPT_MASK; + + (void)USB_EnableGlobalInt(USBx); + + return ret; +} + +/** + * @brief USB_ActivateRemoteWakeup active remote wakeup signalling + * @param USBx Selected device + * @retval HAL status + */ +HAL_StatusTypeDef USB_ActivateRemoteWakeup(USB_OTG_GlobalTypeDef *USBx) +{ + uint32_t USBx_BASE = (uint32_t)USBx; + + if ((USBx_DEVICE->DSTS & USB_OTG_DSTS_SUSPSTS) == USB_OTG_DSTS_SUSPSTS) + { + /* active Remote wakeup signalling */ + USBx_DEVICE->DCTL |= USB_OTG_DCTL_RWUSIG; + } + + return HAL_OK; +} + +/** + * @brief USB_DeActivateRemoteWakeup de-active remote wakeup signalling + * @param USBx Selected device + * @retval HAL status + */ +HAL_StatusTypeDef USB_DeActivateRemoteWakeup(USB_OTG_GlobalTypeDef *USBx) +{ + uint32_t USBx_BASE = (uint32_t)USBx; + + /* active Remote wakeup signalling */ + USBx_DEVICE->DCTL &= ~(USB_OTG_DCTL_RWUSIG); + + return HAL_OK; +} +#endif /* defined (USB_OTG_FS) || defined (USB_OTG_HS) */ + +/** + * @} + */ + +/** + * @} + */ +#endif /* defined (USB_OTG_FS) || defined (USB_OTG_HS) */ +#endif /* defined (HAL_PCD_MODULE_ENABLED) || defined (HAL_HCD_MODULE_ENABLED) */ + +/** + * @} + */ -- cgit v1.2.3