mbed library sources modified for open wear
Dependents: openwear-lifelogger-example
Fork of mbed-src by
targets/cmsis/TARGET_STM/TARGET_NUCLEO_L053R8/stm32l0xx_hal_pcd.c
- Committer:
- janekm
- Date:
- 2014-09-16
- Revision:
- 310:6188e0254baa
- Parent:
- 181:a4cbdfbbd2f4
File content as of revision 310:6188e0254baa:
/** ****************************************************************************** * @file stm32l0xx_hal_pcd.c * @author MCD Application Team * @version V1.0.0 * @date 22-April-2014 * @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 HCD 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 (+++) __USB_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 HCD transmission and reception: (##) HAL_PCD_Start(); @endverbatim ****************************************************************************** * @attention * * <h2><center>© COPYRIGHT(c) 2014 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 "stm32l0xx_hal.h" /** @addtogroup STM32L0xx_HAL_Driver * @{ */ /** @defgroup PCD * @brief PCD HAL module driver * @{ */ #ifdef HAL_PCD_MODULE_ENABLED /* Private typedef -----------------------------------------------------------*/ /* Private define ------------------------------------------------------------*/ #define BTABLE_ADDRESS (0x000) /* Private macro -------------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ /* Private function prototypes -----------------------------------------------*/ static HAL_StatusTypeDef PCD_EP_ISR_Handler(PCD_HandleTypeDef *hpcd); void PCD_WritePMA(USB_TypeDef *USBx, uint8_t *pbUsrBuf, uint16_t wPMABufAddr, uint16_t wNBytes); void PCD_ReadPMA(USB_TypeDef *USBx, uint8_t *pbUsrBuf, uint16_t wPMABufAddr, uint16_t wNBytes); /* Private functions ---------------------------------------------------------*/ /** @defgroup PCD_Private_Functions * @{ */ /** @defgroup PCD_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 create the associated handle. * @param hpcd: PCD handle * @retval HAL status */ HAL_StatusTypeDef HAL_PCD_Init(PCD_HandleTypeDef *hpcd) { uint32_t i = 0; uint32_t wInterrupt_Mask = 0; /* Check the PCD handle allocation */ if(hpcd == NULL) { return HAL_ERROR; } /* Check the parameters */ assert_param(IS_PCD_ALL_INSTANCE(hpcd->Instance)); hpcd->State = PCD_BUSY; /* Init the low level hardware : GPIO, CLOCK, NVIC... */ HAL_PCD_MspInit(hpcd); /* 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; /* Control until ep is actvated */ hpcd->IN_ep[i].type = PCD_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; /* Control until ep is activated */ hpcd->OUT_ep[i].type = PCD_EP_TYPE_CTRL; hpcd->OUT_ep[i].maxpacket = 0; hpcd->OUT_ep[i].xfer_buff = 0; hpcd->OUT_ep[i].xfer_len = 0; } /* Init Device */ /*CNTR_FRES = 1*/ hpcd->Instance->CNTR = USB_CNTR_FRES; /*CNTR_FRES = 0*/ hpcd->Instance->CNTR = 0; /*Clear pending interrupts*/ hpcd->Instance->ISTR = 0; /*Set Btable Adress*/ hpcd->Instance->BTABLE = BTABLE_ADDRESS; /*set wInterrupt_Mask global variable*/ wInterrupt_Mask = USB_CNTR_CTRM | USB_CNTR_WKUPM | USB_CNTR_SUSPM | USB_CNTR_ERRM \ | USB_CNTR_ESOFM | USB_CNTR_RESETM; /*Set interrupt mask*/ hpcd->Instance->CNTR = wInterrupt_Mask; hpcd->USB_Address = 0; hpcd->State= PCD_READY; 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 = PCD_BUSY; /* Stop Device */ HAL_PCD_Stop(hpcd); /* DeInit the low level hardware */ HAL_PCD_MspDeInit(hpcd); hpcd->State = PCD_READY; 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 implenetd 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 implenetd in the user file */ } /** * @} */ /** @defgroup PCD_Group2 IO 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) { /* Enabling DP Pull-Down bit to Connect internal pull-up on USB DP line */ hpcd->Instance->BCDR |= USB_BCDR_DPPU; 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); /* disable all interrupts and force USB reset */ hpcd->Instance->CNTR = USB_CNTR_FRES; /* clear interrupt status register */ hpcd->Instance->ISTR = 0; /* switch-off device */ hpcd->Instance->CNTR = (USB_CNTR_FRES | USB_CNTR_PDWN); __HAL_UNLOCK(hpcd); return HAL_OK; } /** * @brief This function handles PCD Endpoint interrupt request. * @param hpcd: PCD handle * @retval HAL status */ static HAL_StatusTypeDef PCD_EP_ISR_Handler(PCD_HandleTypeDef *hpcd) { PCD_EPTypeDef *ep; uint16_t count=0; uint8_t EPindex; __IO uint16_t wIstr; __IO uint16_t wEPVal = 0; /* stay in loop while pending interrupts */ while (((wIstr = hpcd->Instance->ISTR) & USB_ISTR_CTR) != 0) { /* extract highest priority endpoint number */ EPindex = (uint8_t)(wIstr & USB_ISTR_EP_ID); if (EPindex == 0) { /* Decode and service control endpoint interrupt */ /* DIR bit = origin of the interrupt */ if ((wIstr & USB_ISTR_DIR) == 0) { /* DIR = 0 */ /* DIR = 0 => IN int */ /* DIR = 0 implies that (EP_CTR_TX = 1) always */ PCD_CLEAR_TX_EP_CTR(hpcd->Instance, PCD_ENDP0); ep = &hpcd->IN_ep[0]; ep->xfer_count = PCD_GET_EP_TX_CNT(hpcd->Instance, ep->num); ep->xfer_buff += ep->xfer_count; /* TX COMPLETE */ HAL_PCD_DataInStageCallback(hpcd, 0); if((hpcd->USB_Address > 0)&& ( ep->xfer_len == 0)) { hpcd->Instance->DADDR = (hpcd->USB_Address | USB_DADDR_EF); hpcd->USB_Address = 0; } } else { /* DIR = 1 */ /* DIR = 1 & CTR_RX => SETUP or OUT int */ /* DIR = 1 & (CTR_TX | CTR_RX) => 2 int pending */ ep = &hpcd->OUT_ep[0]; wEPVal = PCD_GET_ENDPOINT(hpcd->Instance, PCD_ENDP0); if ((wEPVal & USB_EP_SETUP) != 0) { /* Get SETUP Packet*/ ep->xfer_count = PCD_GET_EP_RX_CNT(hpcd->Instance, ep->num); PCD_ReadPMA(hpcd->Instance, (uint8_t*)hpcd->Setup ,ep->pmaadress , ep->xfer_count); /* SETUP bit kept frozen while CTR_RX = 1*/ PCD_CLEAR_RX_EP_CTR(hpcd->Instance, PCD_ENDP0); /* Process SETUP Packet*/ HAL_PCD_SetupStageCallback(hpcd); } else if ((wEPVal & USB_EP_CTR_RX) != 0) { PCD_CLEAR_RX_EP_CTR(hpcd->Instance, PCD_ENDP0); /* Get Control Data OUT Packet*/ ep->xfer_count = PCD_GET_EP_RX_CNT(hpcd->Instance, ep->num); if (ep->xfer_count != 0) { PCD_ReadPMA(hpcd->Instance, ep->xfer_buff, ep->pmaadress, ep->xfer_count); ep->xfer_buff+=ep->xfer_count; } /* Process Control Data OUT Packet*/ HAL_PCD_DataOutStageCallback(hpcd, 0); PCD_SET_EP_RX_CNT(hpcd->Instance, PCD_ENDP0, ep->maxpacket); PCD_SET_EP_RX_STATUS(hpcd->Instance, PCD_ENDP0, USB_EP_RX_VALID); } } } else { /* Decode and service non control endpoints interrupt */ /* process related endpoint register */ wEPVal = PCD_GET_ENDPOINT(hpcd->Instance, EPindex); if ((wEPVal & USB_EP_CTR_RX) != 0) { /* clear int flag */ PCD_CLEAR_RX_EP_CTR(hpcd->Instance, EPindex); ep = &hpcd->OUT_ep[EPindex]; /* OUT double Buffering*/ if (ep->doublebuffer == 0) { count = PCD_GET_EP_RX_CNT(hpcd->Instance, ep->num); if (count != 0) { PCD_ReadPMA(hpcd->Instance, ep->xfer_buff, ep->pmaadress, count); } } else { if (PCD_GET_ENDPOINT(hpcd->Instance, ep->num) & USB_EP_DTOG_RX) { /*read from endpoint BUF0Addr buffer*/ count = PCD_GET_EP_DBUF0_CNT(hpcd->Instance, ep->num); if (count != 0) { PCD_ReadPMA(hpcd->Instance, ep->xfer_buff, ep->pmaaddr0, count); } } else { /*read from endpoint BUF1Addr buffer*/ count = PCD_GET_EP_DBUF1_CNT(hpcd->Instance, ep->num); if (count != 0) { PCD_ReadPMA(hpcd->Instance, ep->xfer_buff, ep->pmaaddr1, count); } } PCD_FreeUserBuffer(hpcd->Instance, ep->num, PCD_EP_DBUF_OUT); } /*multi-packet on the NON control OUT endpoint*/ ep->xfer_count+=count; ep->xfer_buff+=count; if ((ep->xfer_len == 0) || (count < ep->maxpacket)) { /* RX COMPLETE */ HAL_PCD_DataOutStageCallback(hpcd, ep->num); } else { HAL_PCD_EP_Receive(hpcd, ep->num, ep->xfer_buff, ep->xfer_len); } } /* if((wEPVal & EP_CTR_RX) */ if ((wEPVal & USB_EP_CTR_TX) != 0) { ep = &hpcd->IN_ep[EPindex]; /* clear int flag */ PCD_CLEAR_TX_EP_CTR(hpcd->Instance, EPindex); /* IN double Buffering*/ if (ep->doublebuffer == 0) { ep->xfer_count = PCD_GET_EP_TX_CNT(hpcd->Instance, ep->num); if (ep->xfer_count != 0) { PCD_WritePMA(hpcd->Instance, ep->xfer_buff, ep->pmaadress, ep->xfer_count); } } else { if (PCD_GET_ENDPOINT(hpcd->Instance, ep->num) & USB_EP_DTOG_TX) { /*read from endpoint BUF0Addr buffer*/ ep->xfer_count = PCD_GET_EP_DBUF0_CNT(hpcd->Instance, ep->num); if (ep->xfer_count != 0) { PCD_WritePMA(hpcd->Instance, ep->xfer_buff, ep->pmaaddr0, ep->xfer_count); } } else { /*read from endpoint BUF1Addr buffer*/ ep->xfer_count = PCD_GET_EP_DBUF1_CNT(hpcd->Instance, ep->num); if (ep->xfer_count != 0) { PCD_WritePMA(hpcd->Instance, ep->xfer_buff, ep->pmaaddr1, ep->xfer_count); } } PCD_FreeUserBuffer(hpcd->Instance, ep->num, PCD_EP_DBUF_IN); } /*multi-packet on the NON control IN endpoint*/ ep->xfer_count = PCD_GET_EP_TX_CNT(hpcd->Instance, ep->num); ep->xfer_buff+=ep->xfer_count; /* Zero Length Packet? */ if (ep->xfer_len == 0) { /* TX COMPLETE */ HAL_PCD_DataInStageCallback(hpcd, ep->num); } else { HAL_PCD_EP_Transmit(hpcd, ep->num, ep->xfer_buff, ep->xfer_len); } } } } return HAL_OK; } /** * @brief This function handles PCD interrupt request. * @param hpcd: PCD handle * @retval HAL status */ void HAL_PCD_IRQHandler(PCD_HandleTypeDef *hpcd) { uint32_t wInterrupt_Mask = 0; if (__HAL_PCD_GET_FLAG (hpcd, USB_ISTR_CTR)) { /* servicing of the endpoint correct transfer interrupt */ /* clear of the CTR flag into the sub */ PCD_EP_ISR_Handler(hpcd); } if (__HAL_PCD_GET_FLAG (hpcd, USB_ISTR_RESET)) { __HAL_PCD_CLEAR_FLAG(hpcd, USB_ISTR_RESET); HAL_PCD_ResetCallback(hpcd); HAL_PCD_SetAddress(hpcd, 0); } if (__HAL_PCD_GET_FLAG (hpcd, USB_ISTR_PMAOVR)) { __HAL_PCD_CLEAR_FLAG(hpcd, USB_ISTR_PMAOVR); } if (__HAL_PCD_GET_FLAG (hpcd, USB_ISTR_ERR)) { __HAL_PCD_CLEAR_FLAG(hpcd, USB_ISTR_ERR); } if (__HAL_PCD_GET_FLAG (hpcd, USB_ISTR_WKUP)) { hpcd->Instance->CNTR &= ~(USB_CNTR_LPMODE); /*set wInterrupt_Mask global variable*/ wInterrupt_Mask = USB_CNTR_CTRM | USB_CNTR_WKUPM | USB_CNTR_SUSPM | USB_CNTR_ERRM \ | USB_CNTR_ESOFM | USB_CNTR_RESETM; /*Set interrupt mask*/ hpcd->Instance->CNTR = wInterrupt_Mask; HAL_PCD_ResumeCallback(hpcd); __HAL_PCD_CLEAR_FLAG(hpcd, USB_ISTR_WKUP); } if (__HAL_PCD_GET_FLAG (hpcd, USB_ISTR_SUSP)) { /* clear of the ISTR bit must be done after setting of CNTR_FSUSP */ __HAL_PCD_CLEAR_FLAG(hpcd, USB_ISTR_SUSP); /* Force low-power mode in the macrocell */ hpcd->Instance->CNTR |= USB_CNTR_FSUSP; hpcd->Instance->CNTR |= USB_CNTR_LPMODE; if (__HAL_PCD_GET_FLAG (hpcd, USB_ISTR_WKUP) == 0) { HAL_PCD_SuspendCallback(hpcd); } } if (__HAL_PCD_GET_FLAG (hpcd, USB_ISTR_SOF)) { __HAL_PCD_CLEAR_FLAG(hpcd, USB_ISTR_SOF); HAL_PCD_SOFCallback(hpcd); } if (__HAL_PCD_GET_FLAG (hpcd, USB_ISTR_ESOF)) { /* clear ESOF flag in ISTR */ __HAL_PCD_CLEAR_FLAG(hpcd, USB_ISTR_ESOF); } } /** * @brief Data out stage callbacks * @param hpcd: PCD handle * @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 implenetd in the user file */ } /** * @brief Data IN stage callbacks * @param hpcd: PCD handle * @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_DataOutStageCallback could be implenetd in the user file */ } /** * @brief Setup stage callback * @param hpcd: ppp 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_DataOutStageCallback could be implenetd in the user file */ } /** * @brief USB Start Of Frame callbacks * @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_DataOutStageCallback could be implenetd in the user file */ } /** * @brief USB Reset callbacks * @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_DataOutStageCallback could be implenetd in the user file */ } /** * @brief Suspend event callbacks * @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_DataOutStageCallback could be implenetd in the user file */ } /** * @brief Resume event callbacks * @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_DataOutStageCallback could be implenetd in the user file */ } /** * @brief Incomplete ISO OUT callbacks * @param hpcd: PCD handle * @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_DataOutStageCallback could be implenetd in the user file */ } /** * @brief Incomplete ISO IN callbacks * @param hpcd: PCD handle * @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_DataOutStageCallback could be implenetd in the user file */ } /** * @brief Connection event callbacks * @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_DataOutStageCallback could be implenetd in the user file */ } /** * @brief Disconnection event callbacks * @param hpcd: ppp 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_DataOutStageCallback could be implenetd in the user file */ } /** * @} */ /** @defgroup PCD_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 Send an amount of data in blocking mode * @param hpcd: PCD handle * @param pData: pointer to data buffer * @param Size: amount of data to be sent * @retval HAL status */ HAL_StatusTypeDef HAL_PCD_DevConnect(PCD_HandleTypeDef *hpcd) { __HAL_LOCK(hpcd); /* Enabling DP Pull-Down bit to Connect internal pull-up on USB DP line */ hpcd->Instance->BCDR |= USB_BCDR_DPPU; __HAL_UNLOCK(hpcd); return HAL_OK; } /** * @brief Send an amount of data in blocking mode * @param hpcd: PCD handle * @param pData: pointer to data buffer * @param Size: amount of data to be sent * @retval HAL status */ HAL_StatusTypeDef HAL_PCD_DevDisconnect(PCD_HandleTypeDef *hpcd) { __HAL_LOCK(hpcd); /* Disable DP Pull-Down bit*/ hpcd->Instance->BCDR &= ~(USB_BCDR_DPPU); __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); if(address == 0) { /* set device address and enable function */ hpcd->Instance->DADDR = USB_DADDR_EF; } else /* USB Address will be applied later */ { hpcd->USB_Address = 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 packert 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; PCD_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; __HAL_LOCK(hpcd); /* initialize Endpoint */ switch (ep->type) { case PCD_EP_TYPE_CTRL: PCD_SET_EPTYPE(hpcd->Instance, ep->num, USB_EP_CONTROL); break; case PCD_EP_TYPE_BULK: PCD_SET_EPTYPE(hpcd->Instance, ep->num, USB_EP_BULK); break; case PCD_EP_TYPE_INTR: PCD_SET_EPTYPE(hpcd->Instance, ep->num, USB_EP_INTERRUPT); break; case PCD_EP_TYPE_ISOC: PCD_SET_EPTYPE(hpcd->Instance, ep->num, USB_EP_ISOCHRONOUS); break; } PCD_SET_EP_ADDRESS(hpcd->Instance, ep->num, ep->num); if (ep->doublebuffer == 0) { if (ep->is_in) { /*Set the endpoint Transmit buffer address */ PCD_SET_EP_TX_ADDRESS(hpcd->Instance, ep->num, ep->pmaadress); PCD_CLEAR_TX_DTOG(hpcd->Instance, ep->num); /* Configure NAK status for the Endpoint*/ PCD_SET_EP_TX_STATUS(hpcd->Instance, ep->num, USB_EP_TX_NAK); } else { /*Set the endpoint Receive buffer address */ PCD_SET_EP_RX_ADDRESS(hpcd->Instance, ep->num, ep->pmaadress); /*Set the endpoint Receive buffer counter*/ PCD_SET_EP_RX_CNT(hpcd->Instance, ep->num, ep->maxpacket); PCD_CLEAR_RX_DTOG(hpcd->Instance, ep->num); /* Configure VALID status for the Endpoint*/ PCD_SET_EP_RX_STATUS(hpcd->Instance, ep->num, USB_EP_RX_VALID); } } /*Double Buffer*/ else { /*Set the endpoint as double buffered*/ PCD_SET_EP_DBUF(hpcd->Instance, ep->num); /*Set buffer address for double buffered mode*/ PCD_SET_EP_DBUF_ADDR(hpcd->Instance, ep->num,ep->pmaaddr0, ep->pmaaddr1); if (ep->is_in==0) { /* Clear the data toggle bits for the endpoint IN/OUT*/ PCD_CLEAR_RX_DTOG(hpcd->Instance, ep->num); PCD_CLEAR_TX_DTOG(hpcd->Instance, ep->num); /* Reset value of the data toggle bits for the endpoint out*/ PCD_TX_DTOG(hpcd->Instance, ep->num); PCD_SET_EP_RX_STATUS(hpcd->Instance, ep->num, USB_EP_RX_VALID); PCD_SET_EP_TX_STATUS(hpcd->Instance, ep->num, USB_EP_TX_DIS); } else { /* Clear the data toggle bits for the endpoint IN/OUT*/ PCD_CLEAR_RX_DTOG(hpcd->Instance, ep->num); PCD_CLEAR_TX_DTOG(hpcd->Instance, ep->num); PCD_RX_DTOG(hpcd->Instance, ep->num); /* Configure DISABLE status for the Endpoint*/ PCD_SET_EP_TX_STATUS(hpcd->Instance, ep->num, USB_EP_TX_DIS); PCD_SET_EP_RX_STATUS(hpcd->Instance, ep->num, USB_EP_RX_DIS); } } __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) { PCD_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); if (ep->doublebuffer == 0) { if (ep->is_in) { PCD_CLEAR_TX_DTOG(hpcd->Instance, ep->num); /* Configure DISABLE status for the Endpoint*/ PCD_SET_EP_TX_STATUS(hpcd->Instance, ep->num, USB_EP_TX_DIS); } else { PCD_CLEAR_RX_DTOG(hpcd->Instance, ep->num); /* Configure DISABLE status for the Endpoint*/ PCD_SET_EP_RX_STATUS(hpcd->Instance, ep->num, USB_EP_RX_DIS); } } /*Double Buffer*/ else { if (ep->is_in==0) { /* Clear the data toggle bits for the endpoint IN/OUT*/ PCD_CLEAR_RX_DTOG(hpcd->Instance, ep->num); PCD_CLEAR_TX_DTOG(hpcd->Instance, ep->num); /* Reset value of the data toggle bits for the endpoint out*/ PCD_TX_DTOG(hpcd->Instance, ep->num); PCD_SET_EP_RX_STATUS(hpcd->Instance, ep->num, USB_EP_RX_DIS); PCD_SET_EP_TX_STATUS(hpcd->Instance, ep->num, USB_EP_TX_DIS); } else { /* Clear the data toggle bits for the endpoint IN/OUT*/ PCD_CLEAR_RX_DTOG(hpcd->Instance, ep->num); PCD_CLEAR_TX_DTOG(hpcd->Instance, ep->num); PCD_RX_DTOG(hpcd->Instance, ep->num); /* Configure DISABLE status for the Endpoint*/ PCD_SET_EP_TX_STATUS(hpcd->Instance, ep->num, USB_EP_TX_DIS); PCD_SET_EP_RX_STATUS(hpcd->Instance, ep->num, USB_EP_RX_DIS); } } __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) { PCD_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; __HAL_LOCK(hpcd); /* Multi packet transfer*/ if (ep->xfer_len > ep->maxpacket) { len=ep->maxpacket; ep->xfer_len-=len; } else { len=ep->xfer_len; ep->xfer_len =0; } /* configure and validate Rx endpoint */ if (ep->doublebuffer == 0) { /*Set RX buffer count*/ PCD_SET_EP_RX_CNT(hpcd->Instance, ep->num, len); } else { /*Set the Double buffer counter*/ PCD_SET_EP_DBUF1_CNT(hpcd->Instance, ep->num, ep->is_in, len); } PCD_SET_EP_RX_STATUS(hpcd->Instance, ep->num, USB_EP_RX_VALID); __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) { PCD_EPTypeDef *ep; uint16_t pmabuffer = 0; 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; __HAL_LOCK(hpcd); /*Multi packet transfer*/ if (ep->xfer_len > ep->maxpacket) { len=ep->maxpacket; ep->xfer_len-=len; } else { len=ep->xfer_len; ep->xfer_len =0; } /* configure and validate Tx endpoint */ if (ep->doublebuffer == 0) { PCD_WritePMA(hpcd->Instance, ep->xfer_buff, ep->pmaadress, len); PCD_SET_EP_TX_CNT(hpcd->Instance, ep->num, len); } else { /*Set the Double buffer counter*/ PCD_SET_EP_DBUF1_CNT(hpcd->Instance, ep->num, ep->is_in, len); /*Write the data to the USB endpoint*/ if (PCD_GET_ENDPOINT(hpcd->Instance, ep->num)& USB_EP_DTOG_TX) { pmabuffer = ep->pmaaddr1; } else { pmabuffer = ep->pmaaddr0; } PCD_WritePMA(hpcd->Instance, ep->xfer_buff, pmabuffer, len); PCD_FreeUserBuffer(hpcd->Instance, ep->num, ep->is_in); } PCD_SET_EP_TX_STATUS(hpcd->Instance, ep->num, USB_EP_TX_VALID); __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) { PCD_EPTypeDef *ep; __HAL_LOCK(hpcd); 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); if (ep->num == 0) { /* This macro sets STALL status for RX & TX*/ PCD_SET_EP_TXRX_STATUS(hpcd->Instance, ep->num, USB_EP_RX_STALL, USB_EP_TX_STALL); } else { if (ep->is_in) { PCD_SET_EP_TX_STATUS(hpcd->Instance, ep->num , USB_EP_TX_STALL); } else { PCD_SET_EP_RX_STATUS(hpcd->Instance, ep->num , USB_EP_RX_STALL); } } __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) { PCD_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); if (ep->is_in) { PCD_CLEAR_TX_DTOG(hpcd->Instance, ep->num); PCD_SET_EP_TX_STATUS(hpcd->Instance, ep->num, USB_EP_TX_VALID); } else { PCD_CLEAR_RX_DTOG(hpcd->Instance, ep->num); PCD_SET_EP_RX_STATUS(hpcd->Instance, ep->num, USB_EP_RX_VALID); } __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) { return HAL_OK; } /** * @brief HAL_PCD_ActiveRemoteWakeup : active remote wakeup signalling * @param hpcd: PCD handle * @retval status */ HAL_StatusTypeDef HAL_PCD_ActiveRemoteWakeup(PCD_HandleTypeDef *hpcd) { hpcd->Instance->CNTR |= USB_CNTR_RESUME; return HAL_OK; } /** * @brief HAL_PCD_DeActiveRemoteWakeup : de-active remote wakeup signalling * @param hpcd: PCD handle * @retval status */ HAL_StatusTypeDef HAL_PCD_DeActiveRemoteWakeup(PCD_HandleTypeDef *hpcd) { hpcd->Instance->CNTR &= ~(USB_CNTR_RESUME); return HAL_OK; } /** * @brief Copy a buffer from user memory area to packet memory area (PMA) * @param pbUsrBuf: pointer to user memory area. * @param wPMABufAddr: address into PMA. * @param wNBytes: no. of bytes to be copied. * @retval None */ void PCD_WritePMA(USB_TypeDef *USBx, uint8_t *pbUsrBuf, uint16_t wPMABufAddr, uint16_t wNBytes) { uint32_t n = (wNBytes + 1) >> 1; uint32_t i; uint16_t temp1, temp2; uint16_t *pdwVal; pdwVal = (uint16_t *)(wPMABufAddr + (uint32_t)USBx + 0x400); for (i = n; i != 0; i--) { temp1 = (uint16_t) * pbUsrBuf; pbUsrBuf++; temp2 = temp1 | (uint16_t) * pbUsrBuf << 8; *pdwVal++ = temp2; pbUsrBuf++; } } /** * @brief Copy a buffer from user memory area to packet memory area (PMA) * @param pbUsrBuf = pointer to user memory area. * @param wPMABufAddr: address into PMA. * @param wNBytes: no. of bytes to be copied. * @retval None */ void PCD_ReadPMA(USB_TypeDef *USBx, uint8_t *pbUsrBuf, uint16_t wPMABufAddr, uint16_t wNBytes) { uint32_t n = (wNBytes + 1) >> 1; uint32_t i; uint16_t *pdwVal; pdwVal = (uint16_t *)(wPMABufAddr + (uint32_t)USBx + 0x400); for (i = n; i != 0; i--) { *(uint16_t*)pbUsrBuf++ = *pdwVal++; pbUsrBuf++; } } /** * @} */ /** @defgroup PCD_Group4 Peripheral State functions * @brief Peripheral State functions * @verbatim =============================================================================== ##### Peripheral State functions ##### =============================================================================== [..] This subsection permit to get in run-time the status of the peripheral and the data flow. @endverbatim * @{ */ /** * @brief Return the PCD state * @param hpcd : PCD handle * @retval HAL state */ PCD_StateTypeDef HAL_PCD_GetState(PCD_HandleTypeDef *hpcd) { return hpcd->State; } /** * @} */ /** * @} */ #endif /* HAL_PCD_MODULE_ENABLED */ /** * @} */ /** * @} */ /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/