/** ****************************************************************************** * @file stm32l4xx_hal_hcd.c * @author MCD Application Team * @brief HCD HAL module driver. * This file provides firmware functions to manage the following * functionalities of the USB Peripheral Controller: * + Initialization and de-initialization functions * + IO 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 ##### ============================================================================== [..] (#)Declare a HCD_HandleTypeDef handle structure, for example: HCD_HandleTypeDef hhcd; (#)Fill parameters of Init structure in HCD handle (#)Call HAL_HCD_Init() API to initialize the HCD peripheral (Core, Host core, ...) (#)Initialize the HCD low level resources through the HAL_HCD_MspInit() API: (##) Enable the HCD/USB Low Level interface clock using the following macros (+++) __HAL_RCC_USB_OTG_FS_CLK_ENABLE(); (##) Initialize the related GPIO clocks (##) Configure HCD pin-out (##) Configure HCD NVIC interrupt (#)Associate the Upper USB Host stack to the HAL HCD Driver: (##) hhcd.pData = phost; (#)Enable HCD transmission and reception: (##) HAL_HCD_Start(); @endverbatim ****************************************************************************** */ /* Includes ------------------------------------------------------------------*/ #include "stm32l4xx_hal.h" /** @addtogroup STM32L4xx_HAL_Driver * @{ */ #ifdef HAL_HCD_MODULE_ENABLED #if defined (USB_OTG_FS) /** @defgroup HCD HCD * @brief HCD HAL module driver * @{ */ /* Private typedef -----------------------------------------------------------*/ /* Private define ------------------------------------------------------------*/ /* Private macro -------------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ /* Private function prototypes -----------------------------------------------*/ /** @defgroup HCD_Private_Functions HCD Private Functions * @{ */ static void HCD_HC_IN_IRQHandler(HCD_HandleTypeDef *hhcd, uint8_t chnum); static void HCD_HC_OUT_IRQHandler(HCD_HandleTypeDef *hhcd, uint8_t chnum); static void HCD_RXQLVL_IRQHandler(HCD_HandleTypeDef *hhcd); static void HCD_Port_IRQHandler(HCD_HandleTypeDef *hhcd); /** * @} */ /* Exported functions --------------------------------------------------------*/ /** @defgroup HCD_Exported_Functions HCD Exported Functions * @{ */ /** @defgroup HCD_Exported_Functions_Group1 Initialization and de-initialization functions * @brief Initialization and Configuration functions * @verbatim =============================================================================== ##### Initialization and de-initialization functions ##### =============================================================================== [..] This section provides functions allowing to: @endverbatim * @{ */ /** * @brief Initialize the host driver. * @param hhcd HCD handle * @retval HAL status */ HAL_StatusTypeDef HAL_HCD_Init(HCD_HandleTypeDef *hhcd) { USB_OTG_GlobalTypeDef *USBx; /* Check the HCD handle allocation */ if (hhcd == NULL) { return HAL_ERROR; } /* Check the parameters */ assert_param(IS_HCD_ALL_INSTANCE(hhcd->Instance)); USBx = hhcd->Instance; if (hhcd->State == HAL_HCD_STATE_RESET) { /* Allocate lock resource and initialize it */ hhcd->Lock = HAL_UNLOCKED; #if (USE_HAL_HCD_REGISTER_CALLBACKS == 1U) hhcd->SOFCallback = HAL_HCD_SOF_Callback; hhcd->ConnectCallback = HAL_HCD_Connect_Callback; hhcd->DisconnectCallback = HAL_HCD_Disconnect_Callback; hhcd->PortEnabledCallback = HAL_HCD_PortEnabled_Callback; hhcd->PortDisabledCallback = HAL_HCD_PortDisabled_Callback; hhcd->HC_NotifyURBChangeCallback = HAL_HCD_HC_NotifyURBChange_Callback; if (hhcd->MspInitCallback == NULL) { hhcd->MspInitCallback = HAL_HCD_MspInit; } /* Init the low level hardware */ hhcd->MspInitCallback(hhcd); #else /* Init the low level hardware : GPIO, CLOCK, NVIC... */ HAL_HCD_MspInit(hhcd); #endif /* (USE_HAL_HCD_REGISTER_CALLBACKS) */ } hhcd->State = HAL_HCD_STATE_BUSY; /* Disable DMA mode for FS instance */ if ((USBx->CID & (0x1U << 8)) == 0U) { hhcd->Init.dma_enable = 0U; } /* Disable the Interrupts */ __HAL_HCD_DISABLE(hhcd); /* Init the Core (common init.) */ (void)USB_CoreInit(hhcd->Instance, hhcd->Init); /* Force Host Mode*/ (void)USB_SetCurrentMode(hhcd->Instance, USB_HOST_MODE); /* Init Host */ (void)USB_HostInit(hhcd->Instance, hhcd->Init); hhcd->State = HAL_HCD_STATE_READY; return HAL_OK; } /** * @brief Initialize a host channel. * @param hhcd HCD handle * @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: * HCD_DEVICE_SPEED_FULL: Full speed mode, * HCD_DEVICE_SPEED_LOW: Low speed mode * @param ep_type Endpoint Type. * This parameter can be one of these values: * EP_TYPE_CTRL: Control type, * EP_TYPE_ISOC: Isochronous type, * EP_TYPE_BULK: Bulk type, * EP_TYPE_INTR: Interrupt type * @param mps Max Packet Size. * This parameter can be a value from 0 to32K * @retval HAL status */ HAL_StatusTypeDef HAL_HCD_HC_Init(HCD_HandleTypeDef *hhcd, uint8_t ch_num, uint8_t epnum, uint8_t dev_address, uint8_t speed, uint8_t ep_type, uint16_t mps) { HAL_StatusTypeDef status; uint32_t HCcharMps = mps; __HAL_LOCK(hhcd); hhcd->hc[ch_num].do_ping = 0U; hhcd->hc[ch_num].dev_addr = dev_address; hhcd->hc[ch_num].ch_num = ch_num; hhcd->hc[ch_num].ep_type = ep_type; hhcd->hc[ch_num].ep_num = epnum & 0x7FU; (void)HAL_HCD_HC_ClearHubInfo(hhcd, ch_num); if ((epnum & 0x80U) == 0x80U) { hhcd->hc[ch_num].ep_is_in = 1U; } else { hhcd->hc[ch_num].ep_is_in = 0U; } hhcd->hc[ch_num].speed = speed; hhcd->hc[ch_num].max_packet = (uint16_t)HCcharMps; status = USB_HC_Init(hhcd->Instance, ch_num, epnum, dev_address, speed, ep_type, (uint16_t)HCcharMps); __HAL_UNLOCK(hhcd); return status; } /** * @brief Halt a host channel. * @param hhcd HCD handle * @param ch_num Channel number. * This parameter can be a value from 1 to 15 * @retval HAL status */ HAL_StatusTypeDef HAL_HCD_HC_Halt(HCD_HandleTypeDef *hhcd, uint8_t ch_num) { HAL_StatusTypeDef status = HAL_OK; __HAL_LOCK(hhcd); (void)USB_HC_Halt(hhcd->Instance, ch_num); __HAL_UNLOCK(hhcd); return status; } /** * @brief DeInitialize the host driver. * @param hhcd HCD handle * @retval HAL status */ HAL_StatusTypeDef HAL_HCD_DeInit(HCD_HandleTypeDef *hhcd) { /* Check the HCD handle allocation */ if (hhcd == NULL) { return HAL_ERROR; } hhcd->State = HAL_HCD_STATE_BUSY; #if (USE_HAL_HCD_REGISTER_CALLBACKS == 1U) if (hhcd->MspDeInitCallback == NULL) { hhcd->MspDeInitCallback = HAL_HCD_MspDeInit; /* Legacy weak MspDeInit */ } /* DeInit the low level hardware */ hhcd->MspDeInitCallback(hhcd); #else /* DeInit the low level hardware: CLOCK, NVIC.*/ HAL_HCD_MspDeInit(hhcd); #endif /* USE_HAL_HCD_REGISTER_CALLBACKS */ __HAL_HCD_DISABLE(hhcd); hhcd->State = HAL_HCD_STATE_RESET; return HAL_OK; } /** * @brief Initialize the HCD MSP. * @param hhcd HCD handle * @retval None */ __weak void HAL_HCD_MspInit(HCD_HandleTypeDef *hhcd) { /* Prevent unused argument(s) compilation warning */ UNUSED(hhcd); /* NOTE : This function should not be modified, when the callback is needed, the HAL_HCD_MspInit could be implemented in the user file */ } /** * @brief DeInitialize the HCD MSP. * @param hhcd HCD handle * @retval None */ __weak void HAL_HCD_MspDeInit(HCD_HandleTypeDef *hhcd) { /* Prevent unused argument(s) compilation warning */ UNUSED(hhcd); /* NOTE : This function should not be modified, when the callback is needed, the HAL_HCD_MspDeInit could be implemented in the user file */ } /** * @} */ /** @defgroup HCD_Exported_Functions_Group2 Input and Output operation functions * @brief HCD IO operation functions * @verbatim =============================================================================== ##### IO operation functions ##### =============================================================================== [..] This subsection provides a set of functions allowing to manage the USB Host Data Transfer @endverbatim * @{ */ /** * @brief Submit a new URB for processing. * @param hhcd HCD handle * @param ch_num Channel number. * This parameter can be a value from 1 to 15 * @param direction Channel number. * This parameter can be one of these values: * 0 : Output / 1 : Input * @param ep_type Endpoint Type. * This parameter can be one of these values: * EP_TYPE_CTRL: Control type/ * EP_TYPE_ISOC: Isochronous type/ * EP_TYPE_BULK: Bulk type/ * EP_TYPE_INTR: Interrupt type/ * @param token Endpoint Type. * This parameter can be one of these values: * 0: HC_PID_SETUP / 1: HC_PID_DATA1 * @param pbuff pointer to URB data * @param length Length of URB data * @param do_ping activate do ping protocol (for high speed only). * This parameter can be one of these values: * 0 : do ping inactive / 1 : do ping active * @retval HAL status */ HAL_StatusTypeDef HAL_HCD_HC_SubmitRequest(HCD_HandleTypeDef *hhcd, uint8_t ch_num, uint8_t direction, uint8_t ep_type, uint8_t token, uint8_t *pbuff, uint16_t length, uint8_t do_ping) { hhcd->hc[ch_num].ep_is_in = direction; hhcd->hc[ch_num].ep_type = ep_type; if (token == 0U) { hhcd->hc[ch_num].data_pid = HC_PID_SETUP; hhcd->hc[ch_num].do_ping = do_ping; } else { hhcd->hc[ch_num].data_pid = HC_PID_DATA1; } /* Manage Data Toggle */ switch (ep_type) { case EP_TYPE_CTRL: if (token == 1U) /* send data */ { if (direction == 0U) { if (length == 0U) { /* For Status OUT stage, Length == 0U, Status Out PID = 1 */ hhcd->hc[ch_num].toggle_out = 1U; } /* Set the Data Toggle bit as per the Flag */ if (hhcd->hc[ch_num].toggle_out == 0U) { /* Put the PID 0 */ hhcd->hc[ch_num].data_pid = HC_PID_DATA0; } else { /* Put the PID 1 */ hhcd->hc[ch_num].data_pid = HC_PID_DATA1; } } } break; case EP_TYPE_BULK: if (direction == 0U) { /* Set the Data Toggle bit as per the Flag */ if (hhcd->hc[ch_num].toggle_out == 0U) { /* Put the PID 0 */ hhcd->hc[ch_num].data_pid = HC_PID_DATA0; } else { /* Put the PID 1 */ hhcd->hc[ch_num].data_pid = HC_PID_DATA1; } } else { if (hhcd->hc[ch_num].toggle_in == 0U) { hhcd->hc[ch_num].data_pid = HC_PID_DATA0; } else { hhcd->hc[ch_num].data_pid = HC_PID_DATA1; } } break; case EP_TYPE_INTR: if (direction == 0U) { /* Set the Data Toggle bit as per the Flag */ if (hhcd->hc[ch_num].toggle_out == 0U) { /* Put the PID 0 */ hhcd->hc[ch_num].data_pid = HC_PID_DATA0; } else { /* Put the PID 1 */ hhcd->hc[ch_num].data_pid = HC_PID_DATA1; } } else { if (hhcd->hc[ch_num].toggle_in == 0U) { hhcd->hc[ch_num].data_pid = HC_PID_DATA0; } else { hhcd->hc[ch_num].data_pid = HC_PID_DATA1; } } break; case EP_TYPE_ISOC: hhcd->hc[ch_num].data_pid = HC_PID_DATA0; break; default: break; } hhcd->hc[ch_num].xfer_buff = pbuff; hhcd->hc[ch_num].xfer_len = length; hhcd->hc[ch_num].urb_state = URB_IDLE; hhcd->hc[ch_num].xfer_count = 0U; hhcd->hc[ch_num].ch_num = ch_num; hhcd->hc[ch_num].state = HC_IDLE; return USB_HC_StartXfer(hhcd->Instance, &hhcd->hc[ch_num]); } /** * @brief Handle HCD interrupt request. * @param hhcd HCD handle * @retval None */ void HAL_HCD_IRQHandler(HCD_HandleTypeDef *hhcd) { USB_OTG_GlobalTypeDef *USBx = hhcd->Instance; uint32_t USBx_BASE = (uint32_t)USBx; uint32_t i; uint32_t interrupt; /* Ensure that we are in device mode */ if (USB_GetMode(hhcd->Instance) == USB_OTG_MODE_HOST) { /* Avoid spurious interrupt */ if (__HAL_HCD_IS_INVALID_INTERRUPT(hhcd)) { return; } if (__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_PXFR_INCOMPISOOUT)) { /* Incorrect mode, acknowledge the interrupt */ __HAL_HCD_CLEAR_FLAG(hhcd, USB_OTG_GINTSTS_PXFR_INCOMPISOOUT); } if (__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_IISOIXFR)) { /* Incorrect mode, acknowledge the interrupt */ __HAL_HCD_CLEAR_FLAG(hhcd, USB_OTG_GINTSTS_IISOIXFR); } if (__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_PTXFE)) { /* Incorrect mode, acknowledge the interrupt */ __HAL_HCD_CLEAR_FLAG(hhcd, USB_OTG_GINTSTS_PTXFE); } if (__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_MMIS)) { /* Incorrect mode, acknowledge the interrupt */ __HAL_HCD_CLEAR_FLAG(hhcd, USB_OTG_GINTSTS_MMIS); } /* Handle Host Disconnect Interrupts */ if (__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_DISCINT)) { __HAL_HCD_CLEAR_FLAG(hhcd, USB_OTG_GINTSTS_DISCINT); if ((USBx_HPRT0 & USB_OTG_HPRT_PCSTS) == 0U) { /* Flush USB Fifo */ (void)USB_FlushTxFifo(USBx, 0x10U); (void)USB_FlushRxFifo(USBx); if (hhcd->Init.phy_itface == USB_OTG_EMBEDDED_PHY) { /* Restore FS Clock */ (void)USB_InitFSLSPClkSel(hhcd->Instance, HCFG_48_MHZ); } /* Handle Host Port Disconnect Interrupt */ #if (USE_HAL_HCD_REGISTER_CALLBACKS == 1U) hhcd->DisconnectCallback(hhcd); #else HAL_HCD_Disconnect_Callback(hhcd); #endif /* USE_HAL_HCD_REGISTER_CALLBACKS */ } } /* Handle Host Port Interrupts */ if (__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_HPRTINT)) { HCD_Port_IRQHandler(hhcd); } /* Handle Host SOF Interrupt */ if (__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_SOF)) { #if (USE_HAL_HCD_REGISTER_CALLBACKS == 1U) hhcd->SOFCallback(hhcd); #else HAL_HCD_SOF_Callback(hhcd); #endif /* USE_HAL_HCD_REGISTER_CALLBACKS */ __HAL_HCD_CLEAR_FLAG(hhcd, USB_OTG_GINTSTS_SOF); } /* Handle Host channel Interrupt */ if (__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_HCINT)) { interrupt = USB_HC_ReadInterrupt(hhcd->Instance); for (i = 0U; i < hhcd->Init.Host_channels; i++) { if ((interrupt & (1UL << (i & 0xFU))) != 0U) { if ((USBx_HC(i)->HCCHAR & USB_OTG_HCCHAR_EPDIR) == USB_OTG_HCCHAR_EPDIR) { HCD_HC_IN_IRQHandler(hhcd, (uint8_t)i); } else { HCD_HC_OUT_IRQHandler(hhcd, (uint8_t)i); } } } __HAL_HCD_CLEAR_FLAG(hhcd, USB_OTG_GINTSTS_HCINT); } /* Handle Rx Queue Level Interrupts */ if ((__HAL_HCD_GET_FLAG(hhcd, USB_OTG_GINTSTS_RXFLVL)) != 0U) { USB_MASK_INTERRUPT(hhcd->Instance, USB_OTG_GINTSTS_RXFLVL); HCD_RXQLVL_IRQHandler(hhcd); USB_UNMASK_INTERRUPT(hhcd->Instance, USB_OTG_GINTSTS_RXFLVL); } } } /** * @brief SOF callback. * @param hhcd HCD handle * @retval None */ __weak void HAL_HCD_SOF_Callback(HCD_HandleTypeDef *hhcd) { /* Prevent unused argument(s) compilation warning */ UNUSED(hhcd); /* NOTE : This function should not be modified, when the callback is needed, the HAL_HCD_SOF_Callback could be implemented in the user file */ } /** * @brief Connection Event callback. * @param hhcd HCD handle * @retval None */ __weak void HAL_HCD_Connect_Callback(HCD_HandleTypeDef *hhcd) { /* Prevent unused argument(s) compilation warning */ UNUSED(hhcd); /* NOTE : This function should not be modified, when the callback is needed, the HAL_HCD_Connect_Callback could be implemented in the user file */ } /** * @brief Disconnection Event callback. * @param hhcd HCD handle * @retval None */ __weak void HAL_HCD_Disconnect_Callback(HCD_HandleTypeDef *hhcd) { /* Prevent unused argument(s) compilation warning */ UNUSED(hhcd); /* NOTE : This function should not be modified, when the callback is needed, the HAL_HCD_Disconnect_Callback could be implemented in the user file */ } /** * @brief Port Enabled Event callback. * @param hhcd HCD handle * @retval None */ __weak void HAL_HCD_PortEnabled_Callback(HCD_HandleTypeDef *hhcd) { /* Prevent unused argument(s) compilation warning */ UNUSED(hhcd); /* NOTE : This function should not be modified, when the callback is needed, the HAL_HCD_Disconnect_Callback could be implemented in the user file */ } /** * @brief Port Disabled Event callback. * @param hhcd HCD handle * @retval None */ __weak void HAL_HCD_PortDisabled_Callback(HCD_HandleTypeDef *hhcd) { /* Prevent unused argument(s) compilation warning */ UNUSED(hhcd); /* NOTE : This function should not be modified, when the callback is needed, the HAL_HCD_Disconnect_Callback could be implemented in the user file */ } /** * @brief Notify URB state change callback. * @param hhcd HCD handle * @param chnum Channel number. * This parameter can be a value from 1 to 15 * @param urb_state: * This parameter can be one of these values: * URB_IDLE/ * URB_DONE/ * URB_NOTREADY/ * URB_NYET/ * URB_ERROR/ * URB_STALL/ * @retval None */ __weak void HAL_HCD_HC_NotifyURBChange_Callback(HCD_HandleTypeDef *hhcd, uint8_t chnum, HCD_URBStateTypeDef urb_state) { /* Prevent unused argument(s) compilation warning */ UNUSED(hhcd); UNUSED(chnum); UNUSED(urb_state); /* NOTE : This function should not be modified, when the callback is needed, the HAL_HCD_HC_NotifyURBChange_Callback could be implemented in the user file */ } #if (USE_HAL_HCD_REGISTER_CALLBACKS == 1U) /** * @brief Register a User USB HCD Callback * To be used instead of the weak predefined callback * @param hhcd USB HCD handle * @param CallbackID ID of the callback to be registered * This parameter can be one of the following values: * @arg @ref HAL_HCD_SOF_CB_ID USB HCD SOF callback ID * @arg @ref HAL_HCD_CONNECT_CB_ID USB HCD Connect callback ID * @arg @ref HAL_HCD_DISCONNECT_CB_ID OTG HCD Disconnect callback ID * @arg @ref HAL_HCD_PORT_ENABLED_CB_ID USB HCD Port Enable callback ID * @arg @ref HAL_HCD_PORT_DISABLED_CB_ID USB HCD Port Disable callback ID * @arg @ref HAL_HCD_MSPINIT_CB_ID MspDeInit callback ID * @arg @ref HAL_HCD_MSPDEINIT_CB_ID MspDeInit callback ID * @param pCallback pointer to the Callback function * @retval HAL status */ HAL_StatusTypeDef HAL_HCD_RegisterCallback(HCD_HandleTypeDef *hhcd, HAL_HCD_CallbackIDTypeDef CallbackID, pHCD_CallbackTypeDef pCallback) { HAL_StatusTypeDef status = HAL_OK; if (pCallback == NULL) { /* Update the error code */ hhcd->ErrorCode |= HAL_HCD_ERROR_INVALID_CALLBACK; return HAL_ERROR; } /* Process locked */ __HAL_LOCK(hhcd); if (hhcd->State == HAL_HCD_STATE_READY) { switch (CallbackID) { case HAL_HCD_SOF_CB_ID : hhcd->SOFCallback = pCallback; break; case HAL_HCD_CONNECT_CB_ID : hhcd->ConnectCallback = pCallback; break; case HAL_HCD_DISCONNECT_CB_ID : hhcd->DisconnectCallback = pCallback; break; case HAL_HCD_PORT_ENABLED_CB_ID : hhcd->PortEnabledCallback = pCallback; break; case HAL_HCD_PORT_DISABLED_CB_ID : hhcd->PortDisabledCallback = pCallback; break; case HAL_HCD_MSPINIT_CB_ID : hhcd->MspInitCallback = pCallback; break; case HAL_HCD_MSPDEINIT_CB_ID : hhcd->MspDeInitCallback = pCallback; break; default : /* Update the error code */ hhcd->ErrorCode |= HAL_HCD_ERROR_INVALID_CALLBACK; /* Return error status */ status = HAL_ERROR; break; } } else if (hhcd->State == HAL_HCD_STATE_RESET) { switch (CallbackID) { case HAL_HCD_MSPINIT_CB_ID : hhcd->MspInitCallback = pCallback; break; case HAL_HCD_MSPDEINIT_CB_ID : hhcd->MspDeInitCallback = pCallback; break; default : /* Update the error code */ hhcd->ErrorCode |= HAL_HCD_ERROR_INVALID_CALLBACK; /* Return error status */ status = HAL_ERROR; break; } } else { /* Update the error code */ hhcd->ErrorCode |= HAL_HCD_ERROR_INVALID_CALLBACK; /* Return error status */ status = HAL_ERROR; } /* Release Lock */ __HAL_UNLOCK(hhcd); return status; } /** * @brief Unregister an USB HCD Callback * USB HCD callback is redirected to the weak predefined callback * @param hhcd USB HCD handle * @param CallbackID ID of the callback to be unregistered * This parameter can be one of the following values: * @arg @ref HAL_HCD_SOF_CB_ID USB HCD SOF callback ID * @arg @ref HAL_HCD_CONNECT_CB_ID USB HCD Connect callback ID * @arg @ref HAL_HCD_DISCONNECT_CB_ID OTG HCD Disconnect callback ID * @arg @ref HAL_HCD_PORT_ENABLED_CB_ID USB HCD Port Enabled callback ID * @arg @ref HAL_HCD_PORT_DISABLED_CB_ID USB HCD Port Disabled callback ID * @arg @ref HAL_HCD_MSPINIT_CB_ID MspDeInit callback ID * @arg @ref HAL_HCD_MSPDEINIT_CB_ID MspDeInit callback ID * @retval HAL status */ HAL_StatusTypeDef HAL_HCD_UnRegisterCallback(HCD_HandleTypeDef *hhcd, HAL_HCD_CallbackIDTypeDef CallbackID) { HAL_StatusTypeDef status = HAL_OK; /* Process locked */ __HAL_LOCK(hhcd); /* Setup Legacy weak Callbacks */ if (hhcd->State == HAL_HCD_STATE_READY) { switch (CallbackID) { case HAL_HCD_SOF_CB_ID : hhcd->SOFCallback = HAL_HCD_SOF_Callback; break; case HAL_HCD_CONNECT_CB_ID : hhcd->ConnectCallback = HAL_HCD_Connect_Callback; break; case HAL_HCD_DISCONNECT_CB_ID : hhcd->DisconnectCallback = HAL_HCD_Disconnect_Callback; break; case HAL_HCD_PORT_ENABLED_CB_ID : hhcd->PortEnabledCallback = HAL_HCD_PortEnabled_Callback; break; case HAL_HCD_PORT_DISABLED_CB_ID : hhcd->PortDisabledCallback = HAL_HCD_PortDisabled_Callback; break; case HAL_HCD_MSPINIT_CB_ID : hhcd->MspInitCallback = HAL_HCD_MspInit; break; case HAL_HCD_MSPDEINIT_CB_ID : hhcd->MspDeInitCallback = HAL_HCD_MspDeInit; break; default : /* Update the error code */ hhcd->ErrorCode |= HAL_HCD_ERROR_INVALID_CALLBACK; /* Return error status */ status = HAL_ERROR; break; } } else if (hhcd->State == HAL_HCD_STATE_RESET) { switch (CallbackID) { case HAL_HCD_MSPINIT_CB_ID : hhcd->MspInitCallback = HAL_HCD_MspInit; break; case HAL_HCD_MSPDEINIT_CB_ID : hhcd->MspDeInitCallback = HAL_HCD_MspDeInit; break; default : /* Update the error code */ hhcd->ErrorCode |= HAL_HCD_ERROR_INVALID_CALLBACK; /* Return error status */ status = HAL_ERROR; break; } } else { /* Update the error code */ hhcd->ErrorCode |= HAL_HCD_ERROR_INVALID_CALLBACK; /* Return error status */ status = HAL_ERROR; } /* Release Lock */ __HAL_UNLOCK(hhcd); return status; } /** * @brief Register USB HCD Host Channel Notify URB Change Callback * To be used instead of the weak HAL_HCD_HC_NotifyURBChange_Callback() predefined callback * @param hhcd HCD handle * @param pCallback pointer to the USB HCD Host Channel Notify URB Change Callback function * @retval HAL status */ HAL_StatusTypeDef HAL_HCD_RegisterHC_NotifyURBChangeCallback(HCD_HandleTypeDef *hhcd, pHCD_HC_NotifyURBChangeCallbackTypeDef pCallback) { HAL_StatusTypeDef status = HAL_OK; if (pCallback == NULL) { /* Update the error code */ hhcd->ErrorCode |= HAL_HCD_ERROR_INVALID_CALLBACK; return HAL_ERROR; } /* Process locked */ __HAL_LOCK(hhcd); if (hhcd->State == HAL_HCD_STATE_READY) { hhcd->HC_NotifyURBChangeCallback = pCallback; } else { /* Update the error code */ hhcd->ErrorCode |= HAL_HCD_ERROR_INVALID_CALLBACK; /* Return error status */ status = HAL_ERROR; } /* Release Lock */ __HAL_UNLOCK(hhcd); return status; } /** * @brief Unregister the USB HCD Host Channel Notify URB Change Callback * USB HCD Host Channel Notify URB Change Callback is redirected * to the weak HAL_HCD_HC_NotifyURBChange_Callback() predefined callback * @param hhcd HCD handle * @retval HAL status */ HAL_StatusTypeDef HAL_HCD_UnRegisterHC_NotifyURBChangeCallback(HCD_HandleTypeDef *hhcd) { HAL_StatusTypeDef status = HAL_OK; /* Process locked */ __HAL_LOCK(hhcd); if (hhcd->State == HAL_HCD_STATE_READY) { hhcd->HC_NotifyURBChangeCallback = HAL_HCD_HC_NotifyURBChange_Callback; /* Legacy weak DataOutStageCallback */ } else { /* Update the error code */ hhcd->ErrorCode |= HAL_HCD_ERROR_INVALID_CALLBACK; /* Return error status */ status = HAL_ERROR; } /* Release Lock */ __HAL_UNLOCK(hhcd); return status; } #endif /* USE_HAL_HCD_REGISTER_CALLBACKS */ /** * @} */ /** @defgroup HCD_Exported_Functions_Group3 Peripheral Control functions * @brief Management functions * @verbatim =============================================================================== ##### Peripheral Control functions ##### =============================================================================== [..] This subsection provides a set of functions allowing to control the HCD data transfers. @endverbatim * @{ */ /** * @brief Start the host driver. * @param hhcd HCD handle * @retval HAL status */ HAL_StatusTypeDef HAL_HCD_Start(HCD_HandleTypeDef *hhcd) { __HAL_LOCK(hhcd); /* Enable port power */ (void)USB_DriveVbus(hhcd->Instance, 1U); /* Enable global interrupt */ __HAL_HCD_ENABLE(hhcd); __HAL_UNLOCK(hhcd); return HAL_OK; } /** * @brief Stop the host driver. * @param hhcd HCD handle * @retval HAL status */ HAL_StatusTypeDef HAL_HCD_Stop(HCD_HandleTypeDef *hhcd) { __HAL_LOCK(hhcd); (void)USB_StopHost(hhcd->Instance); __HAL_UNLOCK(hhcd); return HAL_OK; } /** * @brief Reset the host port. * @param hhcd HCD handle * @retval HAL status */ HAL_StatusTypeDef HAL_HCD_ResetPort(HCD_HandleTypeDef *hhcd) { return (USB_ResetPort(hhcd->Instance)); } /** * @} */ /** @defgroup HCD_Exported_Functions_Group4 Peripheral State functions * @brief Peripheral State functions * @verbatim =============================================================================== ##### Peripheral State functions ##### =============================================================================== [..] This subsection permits to get in run-time the status of the peripheral and the data flow. @endverbatim * @{ */ /** * @brief Return the HCD handle state. * @param hhcd HCD handle * @retval HAL state */ HCD_StateTypeDef HAL_HCD_GetState(HCD_HandleTypeDef const *hhcd) { return hhcd->State; } /** * @brief Return URB state for a channel. * @param hhcd HCD handle * @param chnum Channel number. * This parameter can be a value from 1 to 15 * @retval URB state. * This parameter can be one of these values: * URB_IDLE/ * URB_DONE/ * URB_NOTREADY/ * URB_NYET/ * URB_ERROR/ * URB_STALL */ HCD_URBStateTypeDef HAL_HCD_HC_GetURBState(HCD_HandleTypeDef const *hhcd, uint8_t chnum) { return hhcd->hc[chnum].urb_state; } /** * @brief Return the last host transfer size. * @param hhcd HCD handle * @param chnum Channel number. * This parameter can be a value from 1 to 15 * @retval last transfer size in byte */ uint32_t HAL_HCD_HC_GetXferCount(HCD_HandleTypeDef const *hhcd, uint8_t chnum) { return hhcd->hc[chnum].xfer_count; } /** * @brief Return the Host Channel state. * @param hhcd HCD handle * @param chnum Channel number. * This parameter can be a value from 1 to 15 * @retval Host channel state * This parameter can be one of these values: * HC_IDLE/ * HC_XFRC/ * HC_HALTED/ * HC_NYET/ * HC_NAK/ * HC_STALL/ * HC_XACTERR/ * HC_BBLERR/ * HC_DATATGLERR */ HCD_HCStateTypeDef HAL_HCD_HC_GetState(HCD_HandleTypeDef const *hhcd, uint8_t chnum) { return hhcd->hc[chnum].state; } /** * @brief Return the current Host frame number. * @param hhcd HCD handle * @retval Current Host frame number */ uint32_t HAL_HCD_GetCurrentFrame(HCD_HandleTypeDef *hhcd) { return (USB_GetCurrentFrame(hhcd->Instance)); } /** * @brief Return the Host enumeration speed. * @param hhcd HCD handle * @retval Enumeration speed */ uint32_t HAL_HCD_GetCurrentSpeed(HCD_HandleTypeDef *hhcd) { return (USB_GetHostSpeed(hhcd->Instance)); } /** * @brief Set host channel Hub information. * @param hhcd HCD handle * @param ch_num Channel number. * This parameter can be a value from 1 to 15 * @param addr Hub address * @param PortNbr Hub port number * @retval HAL status */ HAL_StatusTypeDef HAL_HCD_HC_SetHubInfo(HCD_HandleTypeDef *hhcd, uint8_t ch_num, uint8_t addr, uint8_t PortNbr) { hhcd->hc[ch_num].hub_addr = addr; hhcd->hc[ch_num].hub_port_nbr = PortNbr; return HAL_OK; } /** * @brief Clear host channel hub information. * @param hhcd HCD handle * @param ch_num Channel number. * This parameter can be a value from 1 to 15 * @retval HAL status */ HAL_StatusTypeDef HAL_HCD_HC_ClearHubInfo(HCD_HandleTypeDef *hhcd, uint8_t ch_num) { hhcd->hc[ch_num].hub_addr = 0U; hhcd->hc[ch_num].hub_port_nbr = 0U; return HAL_OK; } /** * @} */ /** * @} */ /** @addtogroup HCD_Private_Functions * @{ */ /** * @brief Handle Host Channel IN interrupt requests. * @param hhcd HCD handle * @param chnum Channel number. * This parameter can be a value from 1 to 15 * @retval none */ static void HCD_HC_IN_IRQHandler(HCD_HandleTypeDef *hhcd, uint8_t chnum) { USB_OTG_GlobalTypeDef *USBx = hhcd->Instance; uint32_t USBx_BASE = (uint32_t)USBx; uint32_t tmpreg; if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_AHBERR)) { __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_AHBERR); hhcd->hc[chnum].state = HC_XACTERR; (void)USB_HC_Halt(hhcd->Instance, chnum); } else if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_BBERR)) { __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_BBERR); hhcd->hc[chnum].state = HC_BBLERR; (void)USB_HC_Halt(hhcd->Instance, chnum); } else if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_STALL)) { __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_STALL); hhcd->hc[chnum].state = HC_STALL; (void)USB_HC_Halt(hhcd->Instance, chnum); } else if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_DTERR)) { __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_DTERR); hhcd->hc[chnum].state = HC_DATATGLERR; (void)USB_HC_Halt(hhcd->Instance, chnum); } else if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_TXERR)) { __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_TXERR); hhcd->hc[chnum].state = HC_XACTERR; (void)USB_HC_Halt(hhcd->Instance, chnum); } else { /* ... */ } if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_FRMOR)) { (void)USB_HC_Halt(hhcd->Instance, chnum); __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_FRMOR); } else if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_XFRC)) { hhcd->hc[chnum].state = HC_XFRC; hhcd->hc[chnum].ErrCnt = 0U; __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_XFRC); if ((hhcd->hc[chnum].ep_type == EP_TYPE_CTRL) || (hhcd->hc[chnum].ep_type == EP_TYPE_BULK)) { (void)USB_HC_Halt(hhcd->Instance, chnum); __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_NAK); } else if ((hhcd->hc[chnum].ep_type == EP_TYPE_INTR) || (hhcd->hc[chnum].ep_type == EP_TYPE_ISOC)) { USBx_HC(chnum)->HCCHAR |= USB_OTG_HCCHAR_ODDFRM; hhcd->hc[chnum].urb_state = URB_DONE; #if (USE_HAL_HCD_REGISTER_CALLBACKS == 1U) hhcd->HC_NotifyURBChangeCallback(hhcd, chnum, hhcd->hc[chnum].urb_state); #else HAL_HCD_HC_NotifyURBChange_Callback(hhcd, chnum, hhcd->hc[chnum].urb_state); #endif /* USE_HAL_HCD_REGISTER_CALLBACKS */ } else { /* ... */ } if (hhcd->Init.dma_enable == 1U) { if ((((hhcd->hc[chnum].xfer_count + hhcd->hc[chnum].max_packet - 1U) / hhcd->hc[chnum].max_packet) & 1U) != 0U) { hhcd->hc[chnum].toggle_in ^= 1U; } } else { hhcd->hc[chnum].toggle_in ^= 1U; } } else if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_ACK)) { __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_ACK); } else if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_CHH)) { __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_CHH); if (hhcd->hc[chnum].state == HC_XFRC) { hhcd->hc[chnum].state = HC_HALTED; hhcd->hc[chnum].urb_state = URB_DONE; } else if (hhcd->hc[chnum].state == HC_STALL) { hhcd->hc[chnum].state = HC_HALTED; hhcd->hc[chnum].urb_state = URB_STALL; } else if ((hhcd->hc[chnum].state == HC_XACTERR) || (hhcd->hc[chnum].state == HC_DATATGLERR)) { hhcd->hc[chnum].state = HC_HALTED; hhcd->hc[chnum].ErrCnt++; if (hhcd->hc[chnum].ErrCnt > 2U) { hhcd->hc[chnum].ErrCnt = 0U; hhcd->hc[chnum].urb_state = URB_ERROR; } else { hhcd->hc[chnum].urb_state = URB_NOTREADY; if ((hhcd->hc[chnum].ep_type == EP_TYPE_CTRL) || (hhcd->hc[chnum].ep_type == EP_TYPE_BULK)) { /* re-activate the channel */ tmpreg = USBx_HC(chnum)->HCCHAR; tmpreg &= ~USB_OTG_HCCHAR_CHDIS; tmpreg |= USB_OTG_HCCHAR_CHENA; USBx_HC(chnum)->HCCHAR = tmpreg; } } } else if (hhcd->hc[chnum].state == HC_NYET) { hhcd->hc[chnum].state = HC_HALTED; } else if (hhcd->hc[chnum].state == HC_ACK) { hhcd->hc[chnum].state = HC_HALTED; } else if (hhcd->hc[chnum].state == HC_NAK) { hhcd->hc[chnum].state = HC_HALTED; hhcd->hc[chnum].urb_state = URB_NOTREADY; if ((hhcd->hc[chnum].ep_type == EP_TYPE_CTRL) || (hhcd->hc[chnum].ep_type == EP_TYPE_BULK)) { /* re-activate the channel */ tmpreg = USBx_HC(chnum)->HCCHAR; tmpreg &= ~USB_OTG_HCCHAR_CHDIS; tmpreg |= USB_OTG_HCCHAR_CHENA; USBx_HC(chnum)->HCCHAR = tmpreg; } } else if (hhcd->hc[chnum].state == HC_BBLERR) { hhcd->hc[chnum].state = HC_HALTED; hhcd->hc[chnum].ErrCnt++; hhcd->hc[chnum].urb_state = URB_ERROR; } else { if (hhcd->hc[chnum].state == HC_HALTED) { return; } } #if (USE_HAL_HCD_REGISTER_CALLBACKS == 1U) hhcd->HC_NotifyURBChangeCallback(hhcd, chnum, hhcd->hc[chnum].urb_state); #else HAL_HCD_HC_NotifyURBChange_Callback(hhcd, chnum, hhcd->hc[chnum].urb_state); #endif /* USE_HAL_HCD_REGISTER_CALLBACKS */ } else if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_NYET)) { __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_NYET); hhcd->hc[chnum].state = HC_NYET; hhcd->hc[chnum].ErrCnt = 0U; (void)USB_HC_Halt(hhcd->Instance, chnum); } else if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_NAK)) { if (hhcd->hc[chnum].ep_type == EP_TYPE_INTR) { hhcd->hc[chnum].ErrCnt = 0U; hhcd->hc[chnum].state = HC_NAK; (void)USB_HC_Halt(hhcd->Instance, chnum); } else if ((hhcd->hc[chnum].ep_type == EP_TYPE_CTRL) || (hhcd->hc[chnum].ep_type == EP_TYPE_BULK)) { hhcd->hc[chnum].ErrCnt = 0U; hhcd->hc[chnum].state = HC_NAK; (void)USB_HC_Halt(hhcd->Instance, chnum); } else { /* ... */ } __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_NAK); } else { /* ... */ } } /** * @brief Handle Host Channel OUT interrupt requests. * @param hhcd HCD handle * @param chnum Channel number. * This parameter can be a value from 1 to 15 * @retval none */ static void HCD_HC_OUT_IRQHandler(HCD_HandleTypeDef *hhcd, uint8_t chnum) { USB_OTG_GlobalTypeDef *USBx = hhcd->Instance; uint32_t USBx_BASE = (uint32_t)USBx; uint32_t tmpreg; uint32_t num_packets; if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_AHBERR)) { __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_AHBERR); hhcd->hc[chnum].state = HC_XACTERR; (void)USB_HC_Halt(hhcd->Instance, chnum); } else if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_ACK)) { __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_ACK); } else if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_FRMOR)) { __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_FRMOR); (void)USB_HC_Halt(hhcd->Instance, chnum); } else if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_XFRC)) { hhcd->hc[chnum].ErrCnt = 0U; __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_XFRC); hhcd->hc[chnum].state = HC_XFRC; (void)USB_HC_Halt(hhcd->Instance, chnum); } else if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_STALL)) { __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_STALL); hhcd->hc[chnum].state = HC_STALL; (void)USB_HC_Halt(hhcd->Instance, chnum); } else if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_NAK)) { hhcd->hc[chnum].ErrCnt = 0U; hhcd->hc[chnum].state = HC_NAK; (void)USB_HC_Halt(hhcd->Instance, chnum); __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_NAK); } else if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_TXERR)) { hhcd->hc[chnum].state = HC_XACTERR; (void)USB_HC_Halt(hhcd->Instance, chnum); __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_TXERR); } else if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_DTERR)) { hhcd->hc[chnum].state = HC_DATATGLERR; (void)USB_HC_Halt(hhcd->Instance, chnum); __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_DTERR); } else if (__HAL_HCD_GET_CH_FLAG(hhcd, chnum, USB_OTG_HCINT_CHH)) { __HAL_HCD_CLEAR_HC_INT(chnum, USB_OTG_HCINT_CHH); if (hhcd->hc[chnum].state == HC_XFRC) { hhcd->hc[chnum].state = HC_HALTED; hhcd->hc[chnum].urb_state = URB_DONE; if ((hhcd->hc[chnum].ep_type == EP_TYPE_BULK) || (hhcd->hc[chnum].ep_type == EP_TYPE_INTR)) { if (hhcd->Init.dma_enable == 0U) { hhcd->hc[chnum].toggle_out ^= 1U; } if ((hhcd->Init.dma_enable == 1U) && (hhcd->hc[chnum].xfer_len > 0U)) { num_packets = (hhcd->hc[chnum].xfer_len + hhcd->hc[chnum].max_packet - 1U) / hhcd->hc[chnum].max_packet; if ((num_packets & 1U) != 0U) { hhcd->hc[chnum].toggle_out ^= 1U; } } } } else if (hhcd->hc[chnum].state == HC_ACK) { hhcd->hc[chnum].state = HC_HALTED; } else if (hhcd->hc[chnum].state == HC_NAK) { hhcd->hc[chnum].state = HC_HALTED; hhcd->hc[chnum].urb_state = URB_NOTREADY; } else if (hhcd->hc[chnum].state == HC_STALL) { hhcd->hc[chnum].state = HC_HALTED; hhcd->hc[chnum].urb_state = URB_STALL; } else if ((hhcd->hc[chnum].state == HC_XACTERR) || (hhcd->hc[chnum].state == HC_DATATGLERR)) { hhcd->hc[chnum].state = HC_HALTED; hhcd->hc[chnum].ErrCnt++; if (hhcd->hc[chnum].ErrCnt > 2U) { hhcd->hc[chnum].ErrCnt = 0U; hhcd->hc[chnum].urb_state = URB_ERROR; } else { hhcd->hc[chnum].urb_state = URB_NOTREADY; /* re-activate the channel */ tmpreg = USBx_HC(chnum)->HCCHAR; tmpreg &= ~USB_OTG_HCCHAR_CHDIS; tmpreg |= USB_OTG_HCCHAR_CHENA; USBx_HC(chnum)->HCCHAR = tmpreg; } } else { return; } #if (USE_HAL_HCD_REGISTER_CALLBACKS == 1U) hhcd->HC_NotifyURBChangeCallback(hhcd, chnum, hhcd->hc[chnum].urb_state); #else HAL_HCD_HC_NotifyURBChange_Callback(hhcd, chnum, hhcd->hc[chnum].urb_state); #endif /* USE_HAL_HCD_REGISTER_CALLBACKS */ } else { return; } } /** * @brief Handle Rx Queue Level interrupt requests. * @param hhcd HCD handle * @retval none */ static void HCD_RXQLVL_IRQHandler(HCD_HandleTypeDef *hhcd) { USB_OTG_GlobalTypeDef *USBx = hhcd->Instance; uint32_t USBx_BASE = (uint32_t)USBx; uint32_t pktsts; uint32_t pktcnt; uint32_t GrxstspReg; uint32_t xferSizePktCnt; uint32_t tmpreg; uint32_t chnum; GrxstspReg = hhcd->Instance->GRXSTSP; chnum = GrxstspReg & USB_OTG_GRXSTSP_EPNUM; pktsts = (GrxstspReg & USB_OTG_GRXSTSP_PKTSTS) >> 17; pktcnt = (GrxstspReg & USB_OTG_GRXSTSP_BCNT) >> 4; switch (pktsts) { case GRXSTS_PKTSTS_IN: /* Read the data into the host buffer. */ if ((pktcnt > 0U) && (hhcd->hc[chnum].xfer_buff != (void *)0)) { if ((hhcd->hc[chnum].xfer_count + pktcnt) <= hhcd->hc[chnum].xfer_len) { (void)USB_ReadPacket(hhcd->Instance, hhcd->hc[chnum].xfer_buff, (uint16_t)pktcnt); /* manage multiple Xfer */ hhcd->hc[chnum].xfer_buff += pktcnt; hhcd->hc[chnum].xfer_count += pktcnt; /* get transfer size packet count */ xferSizePktCnt = (USBx_HC(chnum)->HCTSIZ & USB_OTG_HCTSIZ_PKTCNT) >> 19; if ((hhcd->hc[chnum].max_packet == pktcnt) && (xferSizePktCnt > 0U)) { /* re-activate the channel when more packets are expected */ tmpreg = USBx_HC(chnum)->HCCHAR; tmpreg &= ~USB_OTG_HCCHAR_CHDIS; tmpreg |= USB_OTG_HCCHAR_CHENA; USBx_HC(chnum)->HCCHAR = tmpreg; hhcd->hc[chnum].toggle_in ^= 1U; } } else { hhcd->hc[chnum].urb_state = URB_ERROR; } } break; case GRXSTS_PKTSTS_DATA_TOGGLE_ERR: break; case GRXSTS_PKTSTS_IN_XFER_COMP: case GRXSTS_PKTSTS_CH_HALTED: default: break; } } /** * @brief Handle Host Port interrupt requests. * @param hhcd HCD handle * @retval None */ static void HCD_Port_IRQHandler(HCD_HandleTypeDef *hhcd) { USB_OTG_GlobalTypeDef *USBx = hhcd->Instance; uint32_t USBx_BASE = (uint32_t)USBx; __IO uint32_t hprt0; __IO uint32_t hprt0_dup; /* Handle Host Port Interrupts */ hprt0 = USBx_HPRT0; hprt0_dup = USBx_HPRT0; hprt0_dup &= ~(USB_OTG_HPRT_PENA | USB_OTG_HPRT_PCDET | \ USB_OTG_HPRT_PENCHNG | USB_OTG_HPRT_POCCHNG); /* Check whether Port Connect detected */ if ((hprt0 & USB_OTG_HPRT_PCDET) == USB_OTG_HPRT_PCDET) { if ((hprt0 & USB_OTG_HPRT_PCSTS) == USB_OTG_HPRT_PCSTS) { #if (USE_HAL_HCD_REGISTER_CALLBACKS == 1U) hhcd->ConnectCallback(hhcd); #else HAL_HCD_Connect_Callback(hhcd); #endif /* USE_HAL_HCD_REGISTER_CALLBACKS */ } hprt0_dup |= USB_OTG_HPRT_PCDET; } /* Check whether Port Enable Changed */ if ((hprt0 & USB_OTG_HPRT_PENCHNG) == USB_OTG_HPRT_PENCHNG) { hprt0_dup |= USB_OTG_HPRT_PENCHNG; if ((hprt0 & USB_OTG_HPRT_PENA) == USB_OTG_HPRT_PENA) { if (hhcd->Init.phy_itface == USB_OTG_EMBEDDED_PHY) { if ((hprt0 & USB_OTG_HPRT_PSPD) == (HPRT0_PRTSPD_LOW_SPEED << 17)) { (void)USB_InitFSLSPClkSel(hhcd->Instance, HCFG_6_MHZ); } else { (void)USB_InitFSLSPClkSel(hhcd->Instance, HCFG_48_MHZ); } } else { if (hhcd->Init.speed == HCD_SPEED_FULL) { USBx_HOST->HFIR = HFIR_60_MHZ; } } #if (USE_HAL_HCD_REGISTER_CALLBACKS == 1U) hhcd->PortEnabledCallback(hhcd); #else HAL_HCD_PortEnabled_Callback(hhcd); #endif /* USE_HAL_HCD_REGISTER_CALLBACKS */ } else { #if (USE_HAL_HCD_REGISTER_CALLBACKS == 1U) hhcd->PortDisabledCallback(hhcd); #else HAL_HCD_PortDisabled_Callback(hhcd); #endif /* USE_HAL_HCD_REGISTER_CALLBACKS */ } } /* Check for an overcurrent */ if ((hprt0 & USB_OTG_HPRT_POCCHNG) == USB_OTG_HPRT_POCCHNG) { hprt0_dup |= USB_OTG_HPRT_POCCHNG; } /* Clear Port Interrupts */ USBx_HPRT0 = hprt0_dup; } /** * @} */ /** * @} */ #endif /* defined (USB_OTG_FS) */ #endif /* HAL_HCD_MODULE_ENABLED */ /** * @} */ /** * @} */