| /** |
| ****************************************************************************** |
| * @file stm32f2xx_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 |
| * |
| @verbatim |
| ============================================================================== |
| ##### How to use this driver ##### |
| ============================================================================== |
| [..] |
| (#) Fill parameters of Init structure in USB_OTG_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 |
| ****************************************************************************** |
| * @attention |
| * |
| * Copyright (c) 2016 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. |
| * |
| ****************************************************************************** |
| */ |
| |
| /* Includes ------------------------------------------------------------------*/ |
| #include "stm32f2xx_hal.h" |
| |
| /** @addtogroup STM32F2xx_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); |
| |
| /* Activate the USB Transceiver */ |
| USBx->GCCFG |= USB_OTG_GCCFG_PWRDWN; |
| } |
| |
| if (cfg.dma_enable == 1U) |
| { |
| 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) |
| { |
| /* |
| * disable HW VBUS sensing. VBUS is internally considered to be always |
| * at VBUS-Valid level (5V). |
| */ |
| USBx_DEVICE->DCTL |= USB_OTG_DCTL_SDIS; |
| USBx->GCCFG |= USB_OTG_GCCFG_NOVBUSSENS; |
| USBx->GCCFG &= ~USB_OTG_GCCFG_VBUSBSEN; |
| USBx->GCCFG &= ~USB_OTG_GCCFG_VBUSASEN; |
| } |
| else |
| { |
| /* Enable HW VBUS sensing */ |
| USBx->GCCFG &= ~USB_OTG_GCCFG_NOVBUSSENS; |
| USBx->GCCFG |= USB_OTG_GCCFG_VBUSBSEN; |
| } |
| |
| /* 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_OTG_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) |
| { |
| uint32_t count = 0U; |
| |
| USBx->GRSTCTL = (USB_OTG_GRSTCTL_TXFFLSH | (num << 6)); |
| |
| do |
| { |
| 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) |
| { |
| uint32_t count = 0; |
| |
| USBx->GRSTCTL = USB_OTG_GRSTCTL_RXFFLSH; |
| |
| do |
| { |
| 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); |
| 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 (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_EP0StartXfer : setup and starts a transfer over the EP 0 |
| * @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_EP0StartXfer(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; |
| |
| /* 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 (ep->xfer_len > ep->maxpacket) |
| { |
| ep->xfer_len = ep->maxpacket; |
| } |
| USBx_INEP(epnum)->DIEPTSIZ |= (USB_OTG_DIEPTSIZ_PKTCNT & (1U << 19)); |
| USBx_INEP(epnum)->DIEPTSIZ |= (USB_OTG_DIEPTSIZ_XFRSIZ & ep->xfer_len); |
| } |
| |
| if (dma == 1U) |
| { |
| if ((uint32_t)ep->dma_addr != 0U) |
| { |
| USBx_INEP(epnum)->DIEPDMA = (uint32_t)(ep->dma_addr); |
| } |
| |
| /* 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); |
| |
| /* Enable the Tx FIFO Empty Interrupt for this EP */ |
| if (ep->xfer_len > 0U) |
| { |
| USBx_DEVICE->DIEPEMPMSK |= 1UL << (ep->num & EP_ADDR_MSK); |
| } |
| } |
| } |
| 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 (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_PKTCNT & (1U << 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); |
| } |
| } |
| |
| /* EP enable */ |
| USBx_OUTEP(epnum)->DOEPCTL |= (USB_OTG_DOEPCTL_CNAK | USB_OTG_DOEPCTL_EPENA); |
| } |
| |
| return HAL_OK; |
| } |
| |
| /** |
| * @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 HAL status |
| */ |
| uint32_t USB_ReadInterrupts(USB_OTG_GlobalTypeDef *USBx) |
| { |
| uint32_t tmpreg; |
| |
| tmpreg = USBx->GINTSTS; |
| tmpreg &= USBx->GINTMSK; |
| |
| return tmpreg; |
| } |
| |
| /** |
| * @brief USB_ReadDevAllOutEpInterrupt: return the USB device OUT endpoints interrupt status |
| * @param USBx Selected device |
| * @retval HAL 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 HAL 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) |
| { |
| uint32_t count = 0U; |
| |
| /* Wait for AHB master IDLE state. */ |
| do |
| { |
| 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 |
| { |
| 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) |
| { |
| 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_NOVBUSSENS; |
| USBx->GCCFG &= ~(USB_OTG_GCCFG_VBUSASEN); |
| USBx->GCCFG &= ~(USB_OTG_GCCFG_VBUSBSEN); |
| |
| 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. */ |
| (void)USB_FlushTxFifo(USBx, 0x10U); /* all Tx FIFOs */ |
| (void)USB_FlushRxFifo(USBx); |
| |
| /* Clear all pending HC Interrupts */ |
| for (i = 0U; i < cfg.Host_channels; i++) |
| { |
| USBx_HC(i)->HCINT = 0xFFFFFFFFU; |
| USBx_HC(i)->HCINTMSK = 0U; |
| } |
| |
| /* Disable all interrupts. */ |
| USBx->GINTMSK = 0U; |
| |
| /* Clear any pending interrupts */ |
| USBx->GINTSTS = 0xFFFFFFFFU; |
| |
| 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 HAL_OK; |
| } |
| |
| /** |
| * @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 = 48000U; |
| } |
| else if (freq == HCFG_6_MHZ) |
| { |
| USBx_HOST->HFIR = 6000U; |
| } |
| else |
| { |
| /* ... */ |
| } |
| |
| 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 = 0xFFFFFFFFU; |
| |
| /* 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 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) | 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 = 256U; |
| |
| 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; |
| 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; |
| USBx_HC(hcnum)->HCCHAR &= ~USB_OTG_HCCHAR_EPDIR; |
| do |
| { |
| 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_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; |
| USBx_HC(hcnum)->HCCHAR &= ~USB_OTG_HCCHAR_EPDIR; |
| do |
| { |
| 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) |
| { |
| uint32_t USBx_BASE = (uint32_t)USBx; |
| uint32_t count = 0U; |
| uint32_t value; |
| uint32_t i; |
| |
| (void)USB_DisableGlobalInt(USBx); |
| |
| /* Flush FIFO */ |
| (void)USB_FlushTxFifo(USBx, 0x10U); |
| (void)USB_FlushRxFifo(USBx); |
| |
| /* 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 |
| { |
| 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 = 0xFFFFFFFFU; |
| USBx->GINTSTS = 0xFFFFFFFFU; |
| |
| return HAL_OK; |
| } |
| |
| /** |
| * @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) */ |
| |
| /** |
| * @} |
| */ |