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Diff: targets/cmsis/TARGET_STM/TARGET_STM32L4/stm32l4xx_hal_pcd.c
- Revision:
- 610:813dcc80987e
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/cmsis/TARGET_STM/TARGET_STM32L4/stm32l4xx_hal_pcd.c Fri Aug 14 13:15:17 2015 +0100
@@ -0,0 +1,1212 @@
+/**
+ ******************************************************************************
+ * @file stm32l4xx_hal_pcd.c
+ * @author MCD Application Team
+ * @version V1.0.0
+ * @date 26-June-2015
+ * @brief PCD 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
+ *
+ @verbatim
+ ==============================================================================
+ ##### How to use this driver #####
+ ==============================================================================
+ [..]
+ The PCD HAL driver can be used as follows:
+
+ (#) Declare a PCD_HandleTypeDef handle structure, for example:
+ PCD_HandleTypeDef hpcd;
+
+ (#) Fill parameters of Init structure in HCD handle
+
+ (#) Call HAL_PCD_Init() API to initialize the PCD peripheral (Core, Device core, ...)
+
+ (#) Initialize the PCD low level resources through the HAL_PCD_MspInit() API:
+ (##) Enable the PCD/USB Low Level interface clock using
+ (+++) __HAL_RCC_USB_OTG_FS_CLK_ENABLE();
+ (##) Initialize the related GPIO clocks
+ (##) Configure PCD pin-out
+ (##) Configure PCD NVIC interrupt
+
+ (#)Associate the Upper USB device stack to the HAL PCD Driver:
+ (##) hpcd.pData = pdev;
+
+ (#)Enable PCD transmission and reception:
+ (##) HAL_PCD_Start();
+
+ @endverbatim
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. Neither the name of STMicroelectronics nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32l4xx_hal.h"
+
+#if defined(STM32L475xx) || defined(STM32L476xx) || defined(STM32L485xx) || defined(STM32L486xx)
+
+/** @addtogroup STM32L4xx_HAL_Driver
+ * @{
+ */
+
+/** @defgroup PCD PCD
+ * @brief PCD HAL module driver
+ * @{
+ */
+
+#ifdef HAL_PCD_MODULE_ENABLED
+
+/* Private types -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private constants ---------------------------------------------------------*/
+/* Private macros ------------------------------------------------------------*/
+/** @defgroup PCD_Private_Macros PCD Private Macros
+ * @{
+ */
+#define PCD_MIN(a, b) (((a) < (b)) ? (a) : (b))
+#define PCD_MAX(a, b) (((a) > (b)) ? (a) : (b))
+/**
+ * @}
+ */
+
+/* Private functions prototypes ----------------------------------------------*/
+/** @defgroup PCD_Private_Functions PCD Private Functions
+ * @{
+ */
+static HAL_StatusTypeDef PCD_WriteEmptyTxFifo(PCD_HandleTypeDef *hpcd, uint32_t epnum);
+/**
+ * @}
+ */
+
+/* Exported functions --------------------------------------------------------*/
+/** @defgroup PCD_Exported_Functions PCD Exported Functions
+ * @{
+ */
+
+/** @defgroup PCD_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 Initializes the PCD according to the specified
+ * parameters in the PCD_InitTypeDef and initialize the associated handle.
+ * @param hpcd: PCD handle
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_PCD_Init(PCD_HandleTypeDef *hpcd)
+{
+ uint32_t i = 0;
+
+ /* Check the PCD handle allocation */
+ if(hpcd == NULL)
+ {
+ return HAL_ERROR;
+ }
+
+ /* Check the parameters */
+ assert_param(IS_PCD_ALL_INSTANCE(hpcd->Instance));
+
+ if(hpcd->State == HAL_PCD_STATE_RESET)
+ {
+ /* Allocate lock resource and initialize it */
+ hpcd->Lock = HAL_UNLOCKED;
+
+ /* Init the low level hardware : GPIO, CLOCK, NVIC... */
+ HAL_PCD_MspInit(hpcd);
+ }
+
+ hpcd->State = HAL_PCD_STATE_BUSY;
+
+ /* Disable the Interrupts */
+ __HAL_PCD_DISABLE(hpcd);
+
+ /*Init the Core (common init.) */
+ USB_CoreInit(hpcd->Instance, hpcd->Init);
+
+ /* Force Device Mode*/
+ USB_SetCurrentMode(hpcd->Instance , USB_OTG_DEVICE_MODE);
+
+ /* Init endpoints structures */
+ for (i = 0; i < hpcd->Init.dev_endpoints ; i++)
+ {
+ /* Init ep structure */
+ hpcd->IN_ep[i].is_in = 1;
+ hpcd->IN_ep[i].num = i;
+ hpcd->IN_ep[i].tx_fifo_num = i;
+ /* Control until ep is activated */
+ hpcd->IN_ep[i].type = EP_TYPE_CTRL;
+ hpcd->IN_ep[i].maxpacket = 0;
+ hpcd->IN_ep[i].xfer_buff = 0;
+ hpcd->IN_ep[i].xfer_len = 0;
+ }
+
+ for (i = 0; i < hpcd->Init.dev_endpoints ; i++)
+ {
+ hpcd->OUT_ep[i].is_in = 0;
+ hpcd->OUT_ep[i].num = i;
+ hpcd->IN_ep[i].tx_fifo_num = i;
+ /* Control until ep is activated */
+ hpcd->OUT_ep[i].type = EP_TYPE_CTRL;
+ hpcd->OUT_ep[i].maxpacket = 0;
+ hpcd->OUT_ep[i].xfer_buff = 0;
+ hpcd->OUT_ep[i].xfer_len = 0;
+
+ hpcd->Instance->DIEPTXF[i] = 0;
+ }
+
+ /* Init Device */
+ USB_DevInit(hpcd->Instance, hpcd->Init);
+
+ hpcd->State= HAL_PCD_STATE_READY;
+
+ /* Activate LPM */
+ if (hpcd->Init.lpm_enable ==1)
+ {
+ HAL_PCDEx_ActivateLPM(hpcd);
+ }
+ /* Activate Battery charging */
+ if (hpcd->Init.battery_charging_enable ==1)
+ {
+ HAL_PCDEx_ActivateBCD(hpcd);
+ }
+ USB_DevDisconnect (hpcd->Instance);
+ return HAL_OK;
+}
+
+/**
+ * @brief DeInitializes the PCD peripheral.
+ * @param hpcd: PCD handle
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_PCD_DeInit(PCD_HandleTypeDef *hpcd)
+{
+ /* Check the PCD handle allocation */
+ if(hpcd == NULL)
+ {
+ return HAL_ERROR;
+ }
+
+ hpcd->State = HAL_PCD_STATE_BUSY;
+
+ /* Stop Device */
+ HAL_PCD_Stop(hpcd);
+
+ /* DeInit the low level hardware */
+ HAL_PCD_MspDeInit(hpcd);
+
+ hpcd->State = HAL_PCD_STATE_RESET;
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Initializes the PCD MSP.
+ * @param hpcd: PCD handle
+ * @retval None
+ */
+__weak void HAL_PCD_MspInit(PCD_HandleTypeDef *hpcd)
+{
+ /* NOTE : This function should not be modified, when the callback is needed,
+ the HAL_PCD_MspInit could be implemented in the user file
+ */
+}
+
+/**
+ * @brief DeInitializes PCD MSP.
+ * @param hpcd: PCD handle
+ * @retval None
+ */
+__weak void HAL_PCD_MspDeInit(PCD_HandleTypeDef *hpcd)
+{
+ /* NOTE : This function should not be modified, when the callback is needed,
+ the HAL_PCD_MspDeInit could be implemented in the user file
+ */
+}
+
+/**
+ * @}
+ */
+
+/** @defgroup PCD_Exported_Functions_Group2 Input and Output operation functions
+ * @brief Data transfers functions
+ *
+@verbatim
+ ===============================================================================
+ ##### IO operation functions #####
+ ===============================================================================
+ [..]
+ This subsection provides a set of functions allowing to manage the PCD data
+ transfers.
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Start The USB OTG Device.
+ * @param hpcd: PCD handle
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_PCD_Start(PCD_HandleTypeDef *hpcd)
+{
+ __HAL_LOCK(hpcd);
+ USB_DevConnect (hpcd->Instance);
+ __HAL_PCD_ENABLE(hpcd);
+ __HAL_UNLOCK(hpcd);
+ return HAL_OK;
+}
+
+/**
+ * @brief Stop The USB OTG Device.
+ * @param hpcd: PCD handle
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_PCD_Stop(PCD_HandleTypeDef *hpcd)
+{
+ __HAL_LOCK(hpcd);
+ __HAL_PCD_DISABLE(hpcd);
+ USB_StopDevice(hpcd->Instance);
+ USB_DevDisconnect (hpcd->Instance);
+ __HAL_UNLOCK(hpcd);
+ return HAL_OK;
+}
+
+/**
+ * @brief Handles PCD interrupt request.
+ * @param hpcd: PCD handle
+ * @retval HAL status
+ */
+void HAL_PCD_IRQHandler(PCD_HandleTypeDef *hpcd)
+{
+ USB_OTG_GlobalTypeDef *USBx = hpcd->Instance;
+ uint32_t i = 0, ep_intr = 0, epint = 0, epnum = 0;
+ uint32_t fifoemptymsk = 0, temp = 0;
+ USB_OTG_EPTypeDef *ep;
+
+ /* ensure that we are in device mode */
+ if (USB_GetMode(hpcd->Instance) == USB_OTG_MODE_DEVICE)
+ {
+ /* avoid spurious interrupt */
+ if(__HAL_PCD_IS_INVALID_INTERRUPT(hpcd))
+ {
+ return;
+ }
+
+ if(__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_MMIS))
+ {
+ /* incorrect mode, acknowledge the interrupt */
+ __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_MMIS);
+ }
+
+ if(__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_OEPINT))
+ {
+ epnum = 0;
+
+ /* Read in the device interrupt bits */
+ ep_intr = USB_ReadDevAllOutEpInterrupt(hpcd->Instance);
+
+ while ( ep_intr )
+ {
+ if (ep_intr & 0x1)
+ {
+ epint = USB_ReadDevOutEPInterrupt(hpcd->Instance, epnum);
+
+ if(( epint & USB_OTG_DOEPINT_XFRC) == USB_OTG_DOEPINT_XFRC)
+ {
+ CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_XFRC);
+
+ if ((( (USBx_OUTEP(0)->DOEPINT & 0x8000) == 0)) )
+ {
+
+ if(hpcd->Init.dma_enable == 1)
+ {
+ hpcd->OUT_ep[epnum].xfer_count = hpcd->OUT_ep[epnum].maxpacket- (USBx_OUTEP(epnum)->DOEPTSIZ & USB_OTG_DOEPTSIZ_XFRSIZ);
+ hpcd->OUT_ep[epnum].xfer_buff += hpcd->OUT_ep[epnum].maxpacket;
+ }
+
+ HAL_PCD_DataOutStageCallback(hpcd, epnum);
+
+ if(hpcd->Init.dma_enable == 1)
+ {
+ if((epnum == 0) && (hpcd->OUT_ep[epnum].xfer_len == 0))
+ {
+ /* this is ZLP, so prepare EP0 for next setup */
+ USB_EP0_OutStart(hpcd->Instance, 1, (uint8_t *)hpcd->Setup);
+ }
+ }
+ }
+ /* Clear the SetPktRcvd flag*/
+ USBx_OUTEP(0)->DOEPINT |= 0x8020;
+ }
+
+ if(( epint & USB_OTG_DOEPINT_STUP) == USB_OTG_DOEPINT_STUP)
+ {
+ /* Inform the upper layer that a setup packet is available */
+ HAL_PCD_SetupStageCallback(hpcd);
+ CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_STUP);
+ }
+
+ if(( epint & USB_OTG_DOEPINT_OTEPDIS) == USB_OTG_DOEPINT_OTEPDIS)
+ {
+ CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_OTEPDIS);
+ }
+ }
+ epnum++;
+ ep_intr >>= 1;
+ }
+ }
+
+ if(__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_IEPINT))
+ {
+ /* Read in the device interrupt bits */
+ ep_intr = USB_ReadDevAllInEpInterrupt(hpcd->Instance);
+
+ epnum = 0;
+
+ while ( ep_intr )
+ {
+ if (ep_intr & 0x1) /* In ITR */
+ {
+ epint = USB_ReadDevInEPInterrupt(hpcd->Instance, epnum);
+
+ if(( epint & USB_OTG_DIEPINT_XFRC) == USB_OTG_DIEPINT_XFRC)
+ {
+ fifoemptymsk = 0x1 << epnum;
+ USBx_DEVICE->DIEPEMPMSK &= ~fifoemptymsk;
+
+ CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_XFRC);
+
+ if (hpcd->Init.dma_enable == 1)
+ {
+ hpcd->IN_ep[epnum].xfer_buff += hpcd->IN_ep[epnum].maxpacket;
+ }
+
+ HAL_PCD_DataInStageCallback(hpcd, epnum);
+
+ if (hpcd->Init.dma_enable == 1)
+ {
+ /* this is ZLP, so prepare EP0 for next setup */
+ if((epnum == 0) && (hpcd->IN_ep[epnum].xfer_len == 0))
+ {
+ /* prepare to rx more setup packets */
+ USB_EP0_OutStart(hpcd->Instance, 1, (uint8_t *)hpcd->Setup);
+ }
+ }
+ }
+ if(( epint & USB_OTG_DIEPINT_TOC) == USB_OTG_DIEPINT_TOC)
+ {
+ CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_TOC);
+ }
+ if(( epint & USB_OTG_DIEPINT_ITTXFE) == USB_OTG_DIEPINT_ITTXFE)
+ {
+ CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_ITTXFE);
+ }
+ if(( epint & USB_OTG_DIEPINT_INEPNE) == USB_OTG_DIEPINT_INEPNE)
+ {
+ CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_INEPNE);
+ }
+ if(( epint & USB_OTG_DIEPINT_EPDISD) == USB_OTG_DIEPINT_EPDISD)
+ {
+ CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_EPDISD);
+ }
+ if(( epint & USB_OTG_DIEPINT_TXFE) == USB_OTG_DIEPINT_TXFE)
+ {
+ PCD_WriteEmptyTxFifo(hpcd , epnum);
+ }
+ }
+ epnum++;
+ ep_intr >>= 1;
+ }
+ }
+
+ /* Handle Resume Interrupt */
+ if(__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_WKUINT))
+ {
+ /* Clear the Remote Wake-up Signaling */
+ USBx_DEVICE->DCTL &= ~USB_OTG_DCTL_RWUSIG;
+
+ if(hpcd->LPM_State == LPM_L1)
+ {
+ hpcd->LPM_State = LPM_L0;
+ HAL_PCDEx_LPM_Callback(hpcd, PCD_LPM_L0_ACTIVE);
+ }
+ else
+ {
+ HAL_PCD_ResumeCallback(hpcd);
+ }
+
+ __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_WKUINT);
+ }
+
+ /* Handle Suspend Interrupt */
+ if(__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_USBSUSP))
+ {
+ if((USBx_DEVICE->DSTS & USB_OTG_DSTS_SUSPSTS) == USB_OTG_DSTS_SUSPSTS)
+ {
+
+ HAL_PCD_SuspendCallback(hpcd);
+ }
+ __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_USBSUSP);
+ }
+
+ /* Handle LPM Interrupt */
+ if(__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_LPMINT))
+ {
+ __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_LPMINT);
+ if( hpcd->LPM_State == LPM_L0)
+ {
+ hpcd->LPM_State = LPM_L1;
+ hpcd->BESL = (hpcd->Instance->GLPMCFG & USB_OTG_GLPMCFG_BESL) >>2 ;
+ HAL_PCDEx_LPM_Callback(hpcd, PCD_LPM_L1_ACTIVE);
+ }
+ else
+ {
+ HAL_PCD_SuspendCallback(hpcd);
+ }
+ }
+
+ /* Handle Reset Interrupt */
+ if(__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_USBRST))
+ {
+ USBx_DEVICE->DCTL &= ~USB_OTG_DCTL_RWUSIG;
+ USB_FlushTxFifo(hpcd->Instance , 0 );
+
+ for (i = 0; i < hpcd->Init.dev_endpoints ; i++)
+ {
+ USBx_INEP(i)->DIEPINT = 0xFF;
+ USBx_OUTEP(i)->DOEPINT = 0xFF;
+ }
+ USBx_DEVICE->DAINT = 0xFFFFFFFF;
+ USBx_DEVICE->DAINTMSK |= 0x10001;
+
+ if(hpcd->Init.use_dedicated_ep1)
+ {
+ USBx_DEVICE->DOUTEP1MSK |= (USB_OTG_DOEPMSK_STUPM | USB_OTG_DOEPMSK_XFRCM | USB_OTG_DOEPMSK_EPDM);
+ USBx_DEVICE->DINEP1MSK |= (USB_OTG_DIEPMSK_TOM | USB_OTG_DIEPMSK_XFRCM | USB_OTG_DIEPMSK_EPDM);
+ }
+ else
+ {
+ USBx_DEVICE->DOEPMSK |= (USB_OTG_DOEPMSK_STUPM | USB_OTG_DOEPMSK_XFRCM | USB_OTG_DOEPMSK_EPDM);
+ USBx_DEVICE->DIEPMSK |= (USB_OTG_DIEPMSK_TOM | USB_OTG_DIEPMSK_XFRCM | USB_OTG_DIEPMSK_EPDM);
+ }
+
+ /* Set Default Address to 0 */
+ USBx_DEVICE->DCFG &= ~USB_OTG_DCFG_DAD;
+
+ /* setup EP0 to receive SETUP packets */
+ USB_EP0_OutStart(hpcd->Instance, hpcd->Init.dma_enable, (uint8_t *)hpcd->Setup);
+
+ __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_USBRST);
+ }
+
+ /* Handle Enumeration done Interrupt */
+ if(__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_ENUMDNE))
+ {
+ USB_ActivateSetup(hpcd->Instance);
+ hpcd->Instance->GUSBCFG &= ~USB_OTG_GUSBCFG_TRDT;
+
+ hpcd->Init.speed = USB_OTG_SPEED_FULL;
+ hpcd->Init.ep0_mps = USB_OTG_FS_MAX_PACKET_SIZE ;
+ hpcd->Instance->GUSBCFG |= (uint32_t)((USBD_FS_TRDT_VALUE << 10) & USB_OTG_GUSBCFG_TRDT);
+
+ HAL_PCD_ResetCallback(hpcd);
+
+ __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_ENUMDNE);
+ }
+
+ /* Handle RxQLevel Interrupt */
+ if(__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_RXFLVL))
+ {
+ USB_MASK_INTERRUPT(hpcd->Instance, USB_OTG_GINTSTS_RXFLVL);
+
+ temp = USBx->GRXSTSP;
+
+ ep = &hpcd->OUT_ep[temp & USB_OTG_GRXSTSP_EPNUM];
+
+ if(((temp & USB_OTG_GRXSTSP_PKTSTS) >> 17) == STS_DATA_UPDT)
+ {
+ if((temp & USB_OTG_GRXSTSP_BCNT) != 0)
+ {
+ USB_ReadPacket(USBx, ep->xfer_buff, (temp & USB_OTG_GRXSTSP_BCNT) >> 4);
+ ep->xfer_buff += (temp & USB_OTG_GRXSTSP_BCNT) >> 4;
+ ep->xfer_count += (temp & USB_OTG_GRXSTSP_BCNT) >> 4;
+ }
+ }
+ else if (((temp & USB_OTG_GRXSTSP_PKTSTS) >> 17) == STS_SETUP_UPDT)
+ {
+ USB_ReadPacket(USBx, (uint8_t *)hpcd->Setup, 8);
+ ep->xfer_count += (temp & USB_OTG_GRXSTSP_BCNT) >> 4;
+ }
+ USB_UNMASK_INTERRUPT(hpcd->Instance, USB_OTG_GINTSTS_RXFLVL);
+ }
+
+ /* Handle SOF Interrupt */
+ if(__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_SOF))
+ {
+ HAL_PCD_SOFCallback(hpcd);
+ __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_SOF);
+ }
+
+ /* Handle Incomplete ISO IN Interrupt */
+ if(__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_IISOIXFR))
+ {
+ HAL_PCD_ISOINIncompleteCallback(hpcd, epnum);
+ __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_IISOIXFR);
+ }
+
+ /* Handle Incomplete ISO OUT Interrupt */
+ if(__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_PXFR_INCOMPISOOUT))
+ {
+ HAL_PCD_ISOOUTIncompleteCallback(hpcd, epnum);
+ __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_PXFR_INCOMPISOOUT);
+ }
+
+ /* Handle Connection event Interrupt */
+ if(__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_SRQINT))
+ {
+ HAL_PCD_ConnectCallback(hpcd);
+ __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_SRQINT);
+ }
+
+ /* Handle Disconnection event Interrupt */
+ if(__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_OTGINT))
+ {
+ temp = hpcd->Instance->GOTGINT;
+
+ if((temp & USB_OTG_GOTGINT_SEDET) == USB_OTG_GOTGINT_SEDET)
+ {
+ HAL_PCD_DisconnectCallback(hpcd);
+ }
+ hpcd->Instance->GOTGINT |= temp;
+ }
+ }
+}
+
+/**
+ * @brief Data OUT stage callback.
+ * @param hpcd: PCD handle
+ * @param epnum: endpoint number
+ * @retval None
+ */
+ __weak void HAL_PCD_DataOutStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
+{
+ /* NOTE : This function should not be modified, when the callback is needed,
+ the HAL_PCD_DataOutStageCallback could be implemented in the user file
+ */
+}
+
+/**
+ * @brief Data IN stage callback.
+ * @param hpcd: PCD handle
+ * @param epnum: endpoint number
+ * @retval None
+ */
+ __weak void HAL_PCD_DataInStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
+{
+ /* NOTE : This function should not be modified, when the callback is needed,
+ the HAL_PCD_DataInStageCallback could be implemented in the user file
+ */
+}
+/**
+ * @brief Setup stage callback.
+ * @param hpcd: PCD handle
+ * @retval None
+ */
+ __weak void HAL_PCD_SetupStageCallback(PCD_HandleTypeDef *hpcd)
+{
+ /* NOTE : This function should not be modified, when the callback is needed,
+ the HAL_PCD_SetupStageCallback could be implemented in the user file
+ */
+}
+
+/**
+ * @brief USB Start Of Frame callback.
+ * @param hpcd: PCD handle
+ * @retval None
+ */
+ __weak void HAL_PCD_SOFCallback(PCD_HandleTypeDef *hpcd)
+{
+ /* NOTE : This function should not be modified, when the callback is needed,
+ the HAL_PCD_SOFCallback could be implemented in the user file
+ */
+}
+
+/**
+ * @brief USB Reset callback.
+ * @param hpcd: PCD handle
+ * @retval None
+ */
+ __weak void HAL_PCD_ResetCallback(PCD_HandleTypeDef *hpcd)
+{
+ /* NOTE : This function should not be modified, when the callback is needed,
+ the HAL_PCD_ResetCallback could be implemented in the user file
+ */
+}
+
+/**
+ * @brief Suspend event callback.
+ * @param hpcd: PCD handle
+ * @retval None
+ */
+ __weak void HAL_PCD_SuspendCallback(PCD_HandleTypeDef *hpcd)
+{
+ /* NOTE : This function should not be modified, when the callback is needed,
+ the HAL_PCD_SuspendCallback could be implemented in the user file
+ */
+}
+
+/**
+ * @brief Resume event callback.
+ * @param hpcd: PCD handle
+ * @retval None
+ */
+ __weak void HAL_PCD_ResumeCallback(PCD_HandleTypeDef *hpcd)
+{
+ /* NOTE : This function should not be modified, when the callback is needed,
+ the HAL_PCD_ResumeCallback could be implemented in the user file
+ */
+}
+
+/**
+ * @brief Incomplete ISO OUT callback.
+ * @param hpcd: PCD handle
+ * @param epnum: endpoint number
+ * @retval None
+ */
+ __weak void HAL_PCD_ISOOUTIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
+{
+ /* NOTE : This function should not be modified, when the callback is needed,
+ the HAL_PCD_ISOOUTIncompleteCallback could be implemented in the user file
+ */
+}
+
+/**
+ * @brief Incomplete ISO IN callback.
+ * @param hpcd: PCD handle
+ * @param epnum: endpoint number
+ * @retval None
+ */
+ __weak void HAL_PCD_ISOINIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
+{
+ /* NOTE : This function should not be modified, when the callback is needed,
+ the HAL_PCD_ISOINIncompleteCallback could be implemented in the user file
+ */
+}
+
+/**
+ * @brief Connection event callback.
+ * @param hpcd: PCD handle
+ * @retval None
+ */
+ __weak void HAL_PCD_ConnectCallback(PCD_HandleTypeDef *hpcd)
+{
+ /* NOTE : This function should not be modified, when the callback is needed,
+ the HAL_PCD_ConnectCallback could be implemented in the user file
+ */
+}
+
+/**
+ * @brief Disconnection event callback.
+ * @param hpcd: PCD handle
+ * @retval None
+ */
+ __weak void HAL_PCD_DisconnectCallback(PCD_HandleTypeDef *hpcd)
+{
+ /* NOTE : This function should not be modified, when the callback is needed,
+ the HAL_PCD_DisconnectCallback could be implemented in the user file
+ */
+}
+
+/**
+ * @}
+ */
+
+/** @defgroup PCD_Exported_Functions_Group3 Peripheral Control functions
+ * @brief management functions
+ *
+@verbatim
+ ===============================================================================
+ ##### Peripheral Control functions #####
+ ===============================================================================
+ [..]
+ This subsection provides a set of functions allowing to control the PCD data
+ transfers.
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Connect the USB device.
+ * @param hpcd: PCD handle
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_PCD_DevConnect(PCD_HandleTypeDef *hpcd)
+{
+ __HAL_LOCK(hpcd);
+ USB_DevConnect(hpcd->Instance);
+ __HAL_UNLOCK(hpcd);
+ return HAL_OK;
+}
+
+/**
+ * @brief Disconnect the USB device.
+ * @param hpcd: PCD handle
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_PCD_DevDisconnect(PCD_HandleTypeDef *hpcd)
+{
+ __HAL_LOCK(hpcd);
+ USB_DevDisconnect(hpcd->Instance);
+ __HAL_UNLOCK(hpcd);
+ return HAL_OK;
+}
+
+/**
+ * @brief Set the USB Device address.
+ * @param hpcd: PCD handle
+ * @param address: new device address
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_PCD_SetAddress(PCD_HandleTypeDef *hpcd, uint8_t address)
+{
+ __HAL_LOCK(hpcd);
+ USB_SetDevAddress(hpcd->Instance, address);
+ __HAL_UNLOCK(hpcd);
+ return HAL_OK;
+}
+/**
+ * @brief Open and configure an endpoint.
+ * @param hpcd: PCD handle
+ * @param ep_addr: endpoint address
+ * @param ep_mps: endpoint max packet size
+ * @param ep_type: endpoint type
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_PCD_EP_Open(PCD_HandleTypeDef *hpcd, uint8_t ep_addr, uint16_t ep_mps, uint8_t ep_type)
+{
+ HAL_StatusTypeDef ret = HAL_OK;
+ USB_OTG_EPTypeDef *ep;
+
+ if ((ep_addr & 0x80) == 0x80)
+ {
+ ep = &hpcd->IN_ep[ep_addr & 0x7F];
+ }
+ else
+ {
+ ep = &hpcd->OUT_ep[ep_addr & 0x7F];
+ }
+ ep->num = ep_addr & 0x7F;
+
+ ep->is_in = (0x80 & ep_addr) != 0;
+ ep->maxpacket = ep_mps;
+ ep->type = ep_type;
+ if (ep->is_in)
+ {
+ /* Assign a Tx FIFO */
+ ep->tx_fifo_num = ep->num;
+ }
+ /* Set initial data PID. */
+ if (ep_type == EP_TYPE_BULK )
+ {
+ ep->data_pid_start = 0;
+ }
+
+ __HAL_LOCK(hpcd);
+ USB_ActivateEndpoint(hpcd->Instance , ep);
+ __HAL_UNLOCK(hpcd);
+ return ret;
+}
+
+
+/**
+ * @brief Deactivate an endpoint.
+ * @param hpcd: PCD handle
+ * @param ep_addr: endpoint address
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_PCD_EP_Close(PCD_HandleTypeDef *hpcd, uint8_t ep_addr)
+{
+ USB_OTG_EPTypeDef *ep;
+
+ if ((ep_addr & 0x80) == 0x80)
+ {
+ ep = &hpcd->IN_ep[ep_addr & 0x7F];
+ }
+ else
+ {
+ ep = &hpcd->OUT_ep[ep_addr & 0x7F];
+ }
+ ep->num = ep_addr & 0x7F;
+
+ ep->is_in = (0x80 & ep_addr) != 0;
+
+ __HAL_LOCK(hpcd);
+ USB_DeactivateEndpoint(hpcd->Instance , ep);
+ __HAL_UNLOCK(hpcd);
+ return HAL_OK;
+}
+
+
+/**
+ * @brief Receive an amount of data.
+ * @param hpcd: PCD handle
+ * @param ep_addr: endpoint address
+ * @param pBuf: pointer to the reception buffer
+ * @param len: amount of data to be received
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_PCD_EP_Receive(PCD_HandleTypeDef *hpcd, uint8_t ep_addr, uint8_t *pBuf, uint32_t len)
+{
+ USB_OTG_EPTypeDef *ep;
+
+ ep = &hpcd->OUT_ep[ep_addr & 0x7F];
+
+ /*setup and start the Xfer */
+ ep->xfer_buff = pBuf;
+ ep->xfer_len = len;
+ ep->xfer_count = 0;
+ ep->is_in = 0;
+ ep->num = ep_addr & 0x7F;
+
+ if (hpcd->Init.dma_enable == 1)
+ {
+ ep->dma_addr = (uint32_t)pBuf;
+ }
+
+ __HAL_LOCK(hpcd);
+
+ if ((ep_addr & 0x7F) == 0 )
+ {
+ USB_EP0StartXfer(hpcd->Instance , ep, hpcd->Init.dma_enable);
+ }
+ else
+ {
+ USB_EPStartXfer(hpcd->Instance , ep, hpcd->Init.dma_enable);
+ }
+ __HAL_UNLOCK(hpcd);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Get Received Data Size.
+ * @param hpcd: PCD handle
+ * @param ep_addr: endpoint address
+ * @retval Data Size
+ */
+uint16_t HAL_PCD_EP_GetRxCount(PCD_HandleTypeDef *hpcd, uint8_t ep_addr)
+{
+ return hpcd->OUT_ep[ep_addr & 0x7F].xfer_count;
+}
+/**
+ * @brief Send an amount of data.
+ * @param hpcd: PCD handle
+ * @param ep_addr: endpoint address
+ * @param pBuf: pointer to the transmission buffer
+ * @param len: amount of data to be sent
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_PCD_EP_Transmit(PCD_HandleTypeDef *hpcd, uint8_t ep_addr, uint8_t *pBuf, uint32_t len)
+{
+ USB_OTG_EPTypeDef *ep;
+
+ ep = &hpcd->IN_ep[ep_addr & 0x7F];
+
+ /*setup and start the Xfer */
+ ep->xfer_buff = pBuf;
+ ep->xfer_len = len;
+ ep->xfer_count = 0;
+ ep->is_in = 1;
+ ep->num = ep_addr & 0x7F;
+
+ if (hpcd->Init.dma_enable == 1)
+ {
+ ep->dma_addr = (uint32_t)pBuf;
+ }
+
+ __HAL_LOCK(hpcd);
+
+ if ((ep_addr & 0x7F) == 0 )
+ {
+ USB_EP0StartXfer(hpcd->Instance , ep, hpcd->Init.dma_enable);
+ }
+ else
+ {
+ USB_EPStartXfer(hpcd->Instance , ep, hpcd->Init.dma_enable);
+ }
+
+ __HAL_UNLOCK(hpcd);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Set a STALL condition over an endpoint.
+ * @param hpcd: PCD handle
+ * @param ep_addr: endpoint address
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_PCD_EP_SetStall(PCD_HandleTypeDef *hpcd, uint8_t ep_addr)
+{
+ USB_OTG_EPTypeDef *ep;
+
+ if ((0x80 & ep_addr) == 0x80)
+ {
+ ep = &hpcd->IN_ep[ep_addr & 0x7F];
+ }
+ else
+ {
+ ep = &hpcd->OUT_ep[ep_addr];
+ }
+
+ ep->is_stall = 1;
+ ep->num = ep_addr & 0x7F;
+ ep->is_in = ((ep_addr & 0x80) == 0x80);
+
+
+ __HAL_LOCK(hpcd);
+ USB_EPSetStall(hpcd->Instance , ep);
+ if((ep_addr & 0x7F) == 0)
+ {
+ USB_EP0_OutStart(hpcd->Instance, hpcd->Init.dma_enable, (uint8_t *)hpcd->Setup);
+ }
+ __HAL_UNLOCK(hpcd);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Clear a STALL condition over in an endpoint.
+ * @param hpcd: PCD handle
+ * @param ep_addr: endpoint address
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_PCD_EP_ClrStall(PCD_HandleTypeDef *hpcd, uint8_t ep_addr)
+{
+ USB_OTG_EPTypeDef *ep;
+
+ if ((0x80 & ep_addr) == 0x80)
+ {
+ ep = &hpcd->IN_ep[ep_addr & 0x7F];
+ }
+ else
+ {
+ ep = &hpcd->OUT_ep[ep_addr];
+ }
+
+ ep->is_stall = 0;
+ ep->num = ep_addr & 0x7F;
+ ep->is_in = ((ep_addr & 0x80) == 0x80);
+
+ __HAL_LOCK(hpcd);
+ USB_EPClearStall(hpcd->Instance , ep);
+ __HAL_UNLOCK(hpcd);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Flush an endpoint.
+ * @param hpcd: PCD handle
+ * @param ep_addr: endpoint address
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_PCD_EP_Flush(PCD_HandleTypeDef *hpcd, uint8_t ep_addr)
+{
+ __HAL_LOCK(hpcd);
+
+ if ((ep_addr & 0x80) == 0x80)
+ {
+ USB_FlushTxFifo(hpcd->Instance, ep_addr & 0x7F);
+ }
+ else
+ {
+ USB_FlushRxFifo(hpcd->Instance);
+ }
+
+ __HAL_UNLOCK(hpcd);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Activate remote wakeup signalling.
+ * @param hpcd: PCD handle
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_PCD_ActivateRemoteWakeup(PCD_HandleTypeDef *hpcd)
+{
+ USB_OTG_GlobalTypeDef *USBx = hpcd->Instance;
+
+ if((USBx_DEVICE->DSTS & USB_OTG_DSTS_SUSPSTS) == USB_OTG_DSTS_SUSPSTS)
+ {
+ /* Activate Remote wakeup signaling */
+ USBx_DEVICE->DCTL |= USB_OTG_DCTL_RWUSIG;
+ }
+ return HAL_OK;
+}
+
+/**
+ * @brief De-activate remote wakeup signalling.
+ * @param hpcd: PCD handle
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_PCD_DeActivateRemoteWakeup(PCD_HandleTypeDef *hpcd)
+{
+ USB_OTG_GlobalTypeDef *USBx = hpcd->Instance;
+
+ /* De-activate Remote wakeup signaling */
+ USBx_DEVICE->DCTL &= ~(USB_OTG_DCTL_RWUSIG);
+ return HAL_OK;
+}
+/**
+ * @}
+ */
+
+/** @defgroup PCD_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 PCD handle state.
+ * @param hpcd: PCD handle
+ * @retval HAL state
+ */
+PCD_StateTypeDef HAL_PCD_GetState(PCD_HandleTypeDef *hpcd)
+{
+ return hpcd->State;
+}
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/* Private functions ---------------------------------------------------------*/
+/** @addtogroup PCD_Private_Functions
+ * @{
+ */
+
+/**
+ * @brief Check FIFO for the next packet to be loaded.
+ * @param hpcd: PCD handle
+ * @param epnum: endpoint number
+ * @retval HAL status
+ */
+static HAL_StatusTypeDef PCD_WriteEmptyTxFifo(PCD_HandleTypeDef *hpcd, uint32_t epnum)
+{
+ USB_OTG_GlobalTypeDef *USBx = hpcd->Instance;
+ USB_OTG_EPTypeDef *ep;
+ int32_t len = 0;
+ uint32_t len32b;
+ uint32_t fifoemptymsk = 0;
+
+ ep = &hpcd->IN_ep[epnum];
+ len = ep->xfer_len - ep->xfer_count;
+
+ if (len > ep->maxpacket)
+ {
+ len = ep->maxpacket;
+ }
+
+
+ len32b = (len + 3) / 4;
+
+ while ( (USBx_INEP(epnum)->DTXFSTS & USB_OTG_DTXFSTS_INEPTFSAV) > len32b &&
+ ep->xfer_count < ep->xfer_len &&
+ ep->xfer_len != 0)
+ {
+ /* Write the FIFO */
+ len = ep->xfer_len - ep->xfer_count;
+
+ if (len > ep->maxpacket)
+ {
+ len = ep->maxpacket;
+ }
+ len32b = (len + 3) / 4;
+
+ USB_WritePacket(USBx, ep->xfer_buff, epnum, len, hpcd->Init.dma_enable);
+
+ ep->xfer_buff += len;
+ ep->xfer_count += len;
+ }
+
+ if(len <= 0)
+ {
+ fifoemptymsk = 0x1 << epnum;
+ USBx_DEVICE->DIEPEMPMSK &= ~fifoemptymsk;
+
+ }
+
+ return HAL_OK;
+}
+
+/**
+ * @}
+ */
+
+#endif /* HAL_PCD_MODULE_ENABLED */
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+#endif /* STM32L475xx || STM32L476xx || STM32L485xx || STM32L486xx */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/