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Diff: HAL_L476/stm32l4xx_ll_usb.c
- Revision:
- 1:d0dfbce63a89
diff -r a9bbfbd216e8 -r d0dfbce63a89 HAL_L476/stm32l4xx_ll_usb.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/HAL_L476/stm32l4xx_ll_usb.c Fri Feb 24 21:13:56 2017 +0000
@@ -0,0 +1,2390 @@
+/**
+ ******************************************************************************
+ * @file stm32l4xx_ll_usb.c
+ * @author MCD Application Team
+ * @version V1.5.1
+ * @date 31-May-2016
+ * @brief USB Low Layer HAL module driver.
+ *
+ * This file provides firmware functions to manage the following
+ * functionalities of the USB Peripheral Controller:
+ * + Initialization/de-initialization functions
+ * + I/O operation functions
+ * + Peripheral Control functions
+ * + Peripheral State functions
+ *
+ @verbatim
+ ==============================================================================
+ ##### How to use this driver #####
+ ==============================================================================
+ [..]
+ (#) Fill parameters of Init structure in USB_OTG_CfgTypeDef structure.
+
+ (#) Call USB_CoreInit() API to initialize the USB Core peripheral.
+
+ (#) The upper HAL HCD/PCD driver will call the right routines for its internal processes.
+
+ @endverbatim
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© COPYRIGHT(c) 2016 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"
+
+/** @defgroup USB_LL USB Low Layer
+ * @brief Low layer module for USB_FS and USB_OTG_FS drivers
+ * @{
+ */
+#if defined (HAL_PCD_MODULE_ENABLED) || defined (HAL_HCD_MODULE_ENABLED)
+
+#if defined(STM32L475xx) || defined(STM32L476xx) || \
+ defined(STM32L485xx) || defined(STM32L486xx) || \
+ defined(STM32L432xx) || defined(STM32L433xx) || \
+ defined(STM32L442xx) || defined(STM32L443xx)
+
+/** @addtogroup STM32L4xx_LL_USB_DRIVER
+ * @{
+ */
+
+
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+/* Private functions ---------------------------------------------------------*/
+#if defined (USB_OTG_FS)
+/** @defgroup USB_LL_Private_Functions USB Low Layer Private Functions
+ * @{
+ */
+static HAL_StatusTypeDef USB_CoreReset(USB_OTG_GlobalTypeDef *USBx);
+/**
+ * @}
+ */
+#endif /* USB_OTG_FS */
+/* Exported functions --------------------------------------------------------*/
+
+/** @defgroup LL_USB_Exported_Functions USB Low Layer Exported Functions
+ * @{
+ */
+
+/** @defgroup LL_USB_Group1 Initialization/de-initialization functions
+ * @brief Initialization and Configuration functions
+ *
+@verbatim
+ ===============================================================================
+ ##### Initialization/de-initialization functions #####
+ ===============================================================================
+ [..] This section provides functions allowing to:
+
+@endverbatim
+ * @{
+ */
+/*==============================================================================
+ USB OTG FS peripheral available on STM32L475xx, STM32L476xx, STM32L485xx and
+ STM32L486xx devices
+==============================================================================*/
+#if defined (USB_OTG_FS)
+/**
+ * @brief Initializes the USB Core
+ * @param USBx: USB Instance
+ * @param cfg: pointer to a USB_OTG_CfgTypeDef structure that contains
+ * the configuration information for the specified USBx peripheral.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_CoreInit(USB_OTG_GlobalTypeDef *USBx, USB_OTG_CfgTypeDef cfg)
+{
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(cfg);
+
+ /* Select FS Embedded PHY */
+ USBx->GUSBCFG |= USB_OTG_GUSBCFG_PHYSEL;
+
+ /* Reset after a PHY select and set Host mode */
+ USB_CoreReset(USBx);
+
+ /* Deactivate the power down*/
+ USBx->GCCFG = USB_OTG_GCCFG_PWRDWN;
+
+ return HAL_OK;
+}
+
+/**
+ * @brief USB_EnableGlobalInt
+ * Enables the controller's Global Int in the AHB Config reg
+ * @param USBx: Selected device
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_EnableGlobalInt(USB_OTG_GlobalTypeDef *USBx)
+{
+ USBx->GAHBCFG |= USB_OTG_GAHBCFG_GINT;
+ return HAL_OK;
+}
+
+
+/**
+ * @brief USB_DisableGlobalInt
+ * Disable the controller's Global Int in the AHB Config reg
+ * @param USBx: Selected device
+ * @retval HAL status
+*/
+HAL_StatusTypeDef USB_DisableGlobalInt(USB_OTG_GlobalTypeDef *USBx)
+{
+ USBx->GAHBCFG &= ~USB_OTG_GAHBCFG_GINT;
+ return HAL_OK;
+}
+
+/**
+ * @brief USB_SetCurrentMode : Set functional mode
+ * @param USBx: Selected device
+ * @param mode: current core mode
+ * This parameter can be one of these values:
+ * @arg USB_OTG_DEVICE_MODE: Peripheral mode
+ * @arg USB_OTG_HOST_MODE: Host mode
+ * @arg USB_OTG_DRD_MODE: Dual Role Device mode
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_SetCurrentMode(USB_OTG_GlobalTypeDef *USBx , USB_ModeTypeDef mode)
+{
+ USBx->GUSBCFG &= ~(USB_OTG_GUSBCFG_FHMOD | USB_OTG_GUSBCFG_FDMOD);
+
+ if ( mode == USB_HOST_MODE)
+ {
+ USBx->GUSBCFG |= USB_OTG_GUSBCFG_FHMOD;
+ }
+ else if ( mode == USB_DEVICE_MODE)
+ {
+ USBx->GUSBCFG |= USB_OTG_GUSBCFG_FDMOD;
+ }
+ HAL_Delay(50);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief USB_DevInit : Initializes the USB_OTG controller registers
+ * for device mode
+ * @param USBx: Selected device
+ * @param cfg: pointer to a USB_OTG_CfgTypeDef structure that contains
+ * the configuration information for the specified USBx peripheral.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_DevInit (USB_OTG_GlobalTypeDef *USBx, USB_OTG_CfgTypeDef cfg)
+{
+ uint32_t index = 0;
+
+ /*Activate VBUS Sensing B */
+ USBx->GCCFG |= USB_OTG_GCCFG_VBDEN;
+
+ if (cfg.vbus_sensing_enable == 0)
+ {
+ /* Deactivate VBUS Sensing B */
+ USBx->GCCFG &= ~ USB_OTG_GCCFG_VBDEN;
+
+ /* B-peripheral session valid override enable*/
+ USBx->GOTGCTL |= USB_OTG_GOTGCTL_BVALOEN;
+ USBx->GOTGCTL |= USB_OTG_GOTGCTL_BVALOVAL;
+ }
+
+ /* Restart the Phy Clock */
+ USBx_PCGCCTL = 0;
+
+ /* Device mode configuration */
+ USBx_DEVICE->DCFG |= DCFG_FRAME_INTERVAL_80;
+
+ /* Set Full speed phy */
+ USB_SetDevSpeed (USBx , USB_OTG_SPEED_FULL);
+
+ /* Flush the FIFOs */
+ USB_FlushTxFifo(USBx , 0x10); /* all Tx FIFOs */
+ USB_FlushRxFifo(USBx);
+
+ /* Clear all pending Device Interrupts */
+ USBx_DEVICE->DIEPMSK = 0;
+ USBx_DEVICE->DOEPMSK = 0;
+ USBx_DEVICE->DAINT = 0xFFFFFFFF;
+ USBx_DEVICE->DAINTMSK = 0;
+
+ for (index = 0; index < cfg.dev_endpoints; index++)
+ {
+ if ((USBx_INEP(index)->DIEPCTL & USB_OTG_DIEPCTL_EPENA) == USB_OTG_DIEPCTL_EPENA)
+ {
+ USBx_INEP(index)->DIEPCTL = (USB_OTG_DIEPCTL_EPDIS | USB_OTG_DIEPCTL_SNAK);
+ }
+ else
+ {
+ USBx_INEP(index)->DIEPCTL = 0;
+ }
+
+ USBx_INEP(index)->DIEPTSIZ = 0;
+ USBx_INEP(index)->DIEPINT = 0xFF;
+ }
+
+ for (index = 0; index < cfg.dev_endpoints; index++)
+ {
+ if ((USBx_OUTEP(index)->DOEPCTL & USB_OTG_DOEPCTL_EPENA) == USB_OTG_DOEPCTL_EPENA)
+ {
+ USBx_OUTEP(index)->DOEPCTL = (USB_OTG_DOEPCTL_EPDIS | USB_OTG_DOEPCTL_SNAK);
+ }
+ else
+ {
+ USBx_OUTEP(index)->DOEPCTL = 0;
+ }
+
+ USBx_OUTEP(index)->DOEPTSIZ = 0;
+ USBx_OUTEP(index)->DOEPINT = 0xFF;
+ }
+
+ USBx_DEVICE->DIEPMSK &= ~(USB_OTG_DIEPMSK_TXFURM);
+
+ if (cfg.dma_enable == 1)
+ {
+ /*Set threshold parameters */
+ USBx_DEVICE->DTHRCTL = (USB_OTG_DTHRCTL_TXTHRLEN_6 | USB_OTG_DTHRCTL_RXTHRLEN_6);
+ USBx_DEVICE->DTHRCTL |= (USB_OTG_DTHRCTL_RXTHREN | USB_OTG_DTHRCTL_ISOTHREN | USB_OTG_DTHRCTL_NONISOTHREN);
+
+ index= USBx_DEVICE->DTHRCTL;
+ }
+
+ /* Disable all interrupts. */
+ USBx->GINTMSK = 0;
+
+ /* Clear any pending interrupts */
+ USBx->GINTSTS = 0xBFFFFFFF;
+
+ /* Enable the common interrupts */
+ if (cfg.dma_enable == DISABLE)
+ {
+ USBx->GINTMSK |= USB_OTG_GINTMSK_RXFLVLM;
+ }
+
+ /* Enable interrupts matching to the Device mode ONLY */
+ USBx->GINTMSK |= (USB_OTG_GINTMSK_USBSUSPM | USB_OTG_GINTMSK_USBRST |\
+ USB_OTG_GINTMSK_ENUMDNEM | USB_OTG_GINTMSK_IEPINT |\
+ USB_OTG_GINTMSK_OEPINT | USB_OTG_GINTMSK_IISOIXFRM|\
+ USB_OTG_GINTMSK_PXFRM_IISOOXFRM | USB_OTG_GINTMSK_WUIM);
+
+ if(cfg.Sof_enable)
+ {
+ USBx->GINTMSK |= USB_OTG_GINTMSK_SOFM;
+ }
+
+ if (cfg.vbus_sensing_enable == ENABLE)
+ {
+ USBx->GINTMSK |= (USB_OTG_GINTMSK_SRQIM | USB_OTG_GINTMSK_OTGINT);
+ }
+
+ return HAL_OK;
+}
+
+
+/**
+ * @brief USB_OTG_FlushTxFifo : Flush a Tx FIFO
+ * @param USBx: Selected device
+ * @param num: FIFO number
+ * This parameter can be a value from 1 to 15
+ 15 means Flush all Tx FIFOs
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_FlushTxFifo (USB_OTG_GlobalTypeDef *USBx, uint32_t num)
+{
+ uint32_t count = 0;
+
+ USBx->GRSTCTL = ( USB_OTG_GRSTCTL_TXFFLSH |(uint32_t)( num << 6));
+
+ do
+ {
+ if (++count > 200000)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+ while ((USBx->GRSTCTL & USB_OTG_GRSTCTL_TXFFLSH) == USB_OTG_GRSTCTL_TXFFLSH);
+
+ return HAL_OK;
+}
+
+
+/**
+ * @brief USB_FlushRxFifo : Flush Rx FIFO
+ * @param USBx: Selected device
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_FlushRxFifo(USB_OTG_GlobalTypeDef *USBx)
+{
+ uint32_t count = 0;
+
+ USBx->GRSTCTL = USB_OTG_GRSTCTL_RXFFLSH;
+
+ do
+ {
+ if (++count > 200000)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+ while ((USBx->GRSTCTL & USB_OTG_GRSTCTL_RXFFLSH) == USB_OTG_GRSTCTL_RXFFLSH);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief USB_SetDevSpeed :Initializes the DevSpd field of DCFG register
+ * depending the PHY type and the enumeration speed of the device.
+ * @param USBx: Selected device
+ * @param speed: device speed
+ * This parameter can be one of these values:
+ * @arg USB_OTG_SPEED_HIGH: High speed mode
+ * @arg USB_OTG_SPEED_HIGH_IN_FULL: High speed core in Full Speed mode
+ * @arg USB_OTG_SPEED_FULL: Full speed mode
+ * @arg USB_OTG_SPEED_LOW: Low speed mode
+ * @retval Hal status
+ */
+HAL_StatusTypeDef USB_SetDevSpeed(USB_OTG_GlobalTypeDef *USBx , uint8_t speed)
+{
+ USBx_DEVICE->DCFG |= speed;
+ return HAL_OK;
+}
+
+/**
+ * @brief USB_GetDevSpeed :Return the Dev Speed
+ * @param USBx: Selected device
+ * @retval speed : device speed
+ * This parameter can be one of these values:
+ * @arg USB_OTG_SPEED_HIGH: High speed mode
+ * @arg USB_OTG_SPEED_FULL: Full speed mode
+ * @arg USB_OTG_SPEED_LOW: Low speed mode
+ */
+uint8_t USB_GetDevSpeed(USB_OTG_GlobalTypeDef *USBx)
+{
+ uint8_t speed = 0;
+
+ if((USBx_DEVICE->DSTS & USB_OTG_DSTS_ENUMSPD) == DSTS_ENUMSPD_HS_PHY_30MHZ_OR_60MHZ)
+ {
+ speed = USB_OTG_SPEED_HIGH;
+ }
+ else if (((USBx_DEVICE->DSTS & USB_OTG_DSTS_ENUMSPD) == DSTS_ENUMSPD_FS_PHY_30MHZ_OR_60MHZ)||
+ ((USBx_DEVICE->DSTS & USB_OTG_DSTS_ENUMSPD) == DSTS_ENUMSPD_FS_PHY_48MHZ))
+ {
+ speed = USB_OTG_SPEED_FULL;
+ }
+ else if((USBx_DEVICE->DSTS & USB_OTG_DSTS_ENUMSPD) == DSTS_ENUMSPD_LS_PHY_6MHZ)
+ {
+ speed = USB_OTG_SPEED_LOW;
+ }
+
+ return speed;
+}
+
+/**
+ * @brief Activate and configure an endpoint
+ * @param USBx: Selected device
+ * @param ep: pointer to endpoint structure
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_ActivateEndpoint(USB_OTG_GlobalTypeDef *USBx, USB_OTG_EPTypeDef *ep)
+{
+ if (ep->is_in == 1)
+ {
+ USBx_DEVICE->DAINTMSK |= USB_OTG_DAINTMSK_IEPM & ((1 << (ep->num)));
+
+ if (((USBx_INEP(ep->num)->DIEPCTL) & USB_OTG_DIEPCTL_USBAEP) == 0)
+ {
+ USBx_INEP(ep->num)->DIEPCTL |= ((ep->maxpacket & USB_OTG_DIEPCTL_MPSIZ ) | (ep->type << 18 ) |\
+ ((ep->num) << 22 ) | (USB_OTG_DIEPCTL_SD0PID_SEVNFRM) | (USB_OTG_DIEPCTL_USBAEP));
+ }
+
+ }
+ else
+ {
+ USBx_DEVICE->DAINTMSK |= USB_OTG_DAINTMSK_OEPM & ((1 << (ep->num)) << 16);
+
+ if (((USBx_OUTEP(ep->num)->DOEPCTL) & USB_OTG_DOEPCTL_USBAEP) == 0)
+ {
+ USBx_OUTEP(ep->num)->DOEPCTL |= ((ep->maxpacket & USB_OTG_DOEPCTL_MPSIZ ) | (ep->type << 18 ) |\
+ (USB_OTG_DIEPCTL_SD0PID_SEVNFRM)| (USB_OTG_DOEPCTL_USBAEP));
+ }
+ }
+ return HAL_OK;
+}
+/**
+ * @brief Activate and configure a dedicated endpoint
+ * @param USBx: Selected device
+ * @param ep: pointer to endpoint structure
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_ActivateDedicatedEndpoint(USB_OTG_GlobalTypeDef *USBx, USB_OTG_EPTypeDef *ep)
+{
+ static __IO uint32_t debug = 0;
+
+ /* Read DEPCTLn register */
+ if (ep->is_in == 1)
+ {
+ if (((USBx_INEP(ep->num)->DIEPCTL) & USB_OTG_DIEPCTL_USBAEP) == 0)
+ {
+ USBx_INEP(ep->num)->DIEPCTL |= ((ep->maxpacket & USB_OTG_DIEPCTL_MPSIZ ) | (ep->type << 18 ) |\
+ ((ep->num) << 22 ) | (USB_OTG_DIEPCTL_SD0PID_SEVNFRM) | (USB_OTG_DIEPCTL_USBAEP));
+ }
+
+
+ debug |= ((ep->maxpacket & USB_OTG_DIEPCTL_MPSIZ ) | (ep->type << 18 ) |\
+ ((ep->num) << 22 ) | (USB_OTG_DIEPCTL_SD0PID_SEVNFRM) | (USB_OTG_DIEPCTL_USBAEP));
+
+ USBx_DEVICE->DEACHMSK |= USB_OTG_DAINTMSK_IEPM & ((1 << (ep->num)));
+ }
+ else
+ {
+ if (((USBx_OUTEP(ep->num)->DOEPCTL) & USB_OTG_DOEPCTL_USBAEP) == 0)
+ {
+ USBx_OUTEP(ep->num)->DOEPCTL |= ((ep->maxpacket & USB_OTG_DOEPCTL_MPSIZ ) | (ep->type << 18 ) |\
+ ((ep->num) << 22 ) | (USB_OTG_DOEPCTL_USBAEP));
+
+ debug = (uint32_t)(((uint32_t )USBx) + USB_OTG_OUT_ENDPOINT_BASE + (0)*USB_OTG_EP_REG_SIZE);
+ debug = (uint32_t )&USBx_OUTEP(ep->num)->DOEPCTL;
+ debug |= ((ep->maxpacket & USB_OTG_DOEPCTL_MPSIZ ) | (ep->type << 18 ) |\
+ ((ep->num) << 22 ) | (USB_OTG_DOEPCTL_USBAEP));
+ }
+
+ USBx_DEVICE->DEACHMSK |= USB_OTG_DAINTMSK_OEPM & ((1 << (ep->num)) << 16);
+ }
+
+ return HAL_OK;
+}
+/**
+ * @brief De-activate and de-initialize an endpoint
+ * @param USBx: Selected device
+ * @param ep: pointer to endpoint structure
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_DeactivateEndpoint(USB_OTG_GlobalTypeDef *USBx, USB_OTG_EPTypeDef *ep)
+{
+ /* Read DEPCTLn register */
+ if (ep->is_in == 1)
+ {
+ USBx_DEVICE->DEACHMSK &= ~(USB_OTG_DAINTMSK_IEPM & ((1 << (ep->num))));
+ USBx_DEVICE->DAINTMSK &= ~(USB_OTG_DAINTMSK_IEPM & ((1 << (ep->num))));
+ USBx_INEP(ep->num)->DIEPCTL &= ~ USB_OTG_DIEPCTL_USBAEP;
+ }
+ else
+ {
+ USBx_DEVICE->DEACHMSK &= ~(USB_OTG_DAINTMSK_OEPM & ((1 << (ep->num)) << 16));
+ USBx_DEVICE->DAINTMSK &= ~(USB_OTG_DAINTMSK_OEPM & ((1 << (ep->num)) << 16));
+ USBx_OUTEP(ep->num)->DOEPCTL &= ~USB_OTG_DOEPCTL_USBAEP;
+ }
+ return HAL_OK;
+}
+
+/**
+ * @brief De-activate and de-initialize a dedicated endpoint
+ * @param USBx: Selected device
+ * @param ep: pointer to endpoint structure
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_DeactivateDedicatedEndpoint(USB_OTG_GlobalTypeDef *USBx, USB_OTG_EPTypeDef *ep)
+{
+ /* Read DEPCTLn register */
+ if (ep->is_in == 1)
+ {
+ USBx_INEP(ep->num)->DIEPCTL &= ~ USB_OTG_DIEPCTL_USBAEP;
+ USBx_DEVICE->DAINTMSK &= ~(USB_OTG_DAINTMSK_IEPM & ((1 << (ep->num))));
+ }
+ else
+ {
+ USBx_OUTEP(ep->num)->DOEPCTL &= ~USB_OTG_DOEPCTL_USBAEP;
+ USBx_DEVICE->DAINTMSK &= ~(USB_OTG_DAINTMSK_OEPM & ((1 << (ep->num)) << 16));
+ }
+ return HAL_OK;
+}
+
+/**
+ * @brief USB_EPStartXfer : setup and starts a transfer over an EP
+ * @param USBx: Selected device
+ * @param ep: pointer to endpoint structure
+ * @param dma: USB dma enabled or disabled
+ * This parameter can be one of these values:
+ * 0 : DMA feature not used
+ * 1 : DMA feature used
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_EPStartXfer(USB_OTG_GlobalTypeDef *USBx , USB_OTG_EPTypeDef *ep, uint8_t dma)
+{
+ uint16_t pktcnt = 0;
+
+ /* IN endpoint */
+ if (ep->is_in == 1)
+ {
+ /* Zero Length Packet? */
+ if (ep->xfer_len == 0)
+ {
+ USBx_INEP(ep->num)->DIEPTSIZ &= ~(USB_OTG_DIEPTSIZ_PKTCNT);
+ USBx_INEP(ep->num)->DIEPTSIZ |= (USB_OTG_DIEPTSIZ_PKTCNT & (1 << 19)) ;
+ USBx_INEP(ep->num)->DIEPTSIZ &= ~(USB_OTG_DIEPTSIZ_XFRSIZ);
+ }
+ else
+ {
+ /* Program the transfer size and packet count
+ * as follows: xfersize = N * maxpacket +
+ * short_packet pktcnt = N + (short_packet
+ * exist ? 1 : 0)
+ */
+ USBx_INEP(ep->num)->DIEPTSIZ &= ~(USB_OTG_DIEPTSIZ_XFRSIZ);
+ USBx_INEP(ep->num)->DIEPTSIZ &= ~(USB_OTG_DIEPTSIZ_PKTCNT);
+ USBx_INEP(ep->num)->DIEPTSIZ |= (USB_OTG_DIEPTSIZ_PKTCNT & (((ep->xfer_len + ep->maxpacket -1)/ ep->maxpacket) << 19)) ;
+ USBx_INEP(ep->num)->DIEPTSIZ |= (USB_OTG_DIEPTSIZ_XFRSIZ & ep->xfer_len);
+
+ if (ep->type == EP_TYPE_ISOC)
+ {
+ USBx_INEP(ep->num)->DIEPTSIZ &= ~(USB_OTG_DIEPTSIZ_MULCNT);
+ USBx_INEP(ep->num)->DIEPTSIZ |= (USB_OTG_DIEPTSIZ_MULCNT & (1 << 29));
+ }
+ }
+ if (ep->type != EP_TYPE_ISOC)
+ {
+ /* Enable the Tx FIFO Empty Interrupt for this EP */
+ if (ep->xfer_len > 0)
+ {
+ atomic_set_u32(&USBx_DEVICE->DIEPEMPMSK, 1 << ep->num);
+ }
+ }
+
+ if (ep->type == EP_TYPE_ISOC)
+ {
+ if ((USBx_DEVICE->DSTS & ( 1 << 8 )) == 0)
+ {
+ USBx_INEP(ep->num)->DIEPCTL |= USB_OTG_DIEPCTL_SODDFRM;
+ }
+ else
+ {
+ USBx_INEP(ep->num)->DIEPCTL |= USB_OTG_DIEPCTL_SD0PID_SEVNFRM;
+ }
+ }
+
+ /* EP enable, IN data in FIFO */
+ USBx_INEP(ep->num)->DIEPCTL |= (USB_OTG_DIEPCTL_CNAK | USB_OTG_DIEPCTL_EPENA);
+
+ if (ep->type == EP_TYPE_ISOC)
+ {
+ USB_WritePacket(USBx, ep->xfer_buff, ep->num, ep->xfer_len, dma);
+ }
+ }
+ else /* OUT endpoint */
+ {
+ /* Program the transfer size and packet count as follows:
+ * pktcnt = N
+ * xfersize = N * maxpacket
+ */
+ USBx_OUTEP(ep->num)->DOEPTSIZ &= ~(USB_OTG_DOEPTSIZ_XFRSIZ);
+ USBx_OUTEP(ep->num)->DOEPTSIZ &= ~(USB_OTG_DOEPTSIZ_PKTCNT);
+
+ if (ep->xfer_len == 0)
+ {
+ USBx_OUTEP(ep->num)->DOEPTSIZ |= (USB_OTG_DOEPTSIZ_XFRSIZ & ep->maxpacket);
+ USBx_OUTEP(ep->num)->DOEPTSIZ |= (USB_OTG_DOEPTSIZ_PKTCNT & (1 << 19)) ;
+ }
+ else
+ {
+ pktcnt = (ep->xfer_len + ep->maxpacket -1)/ ep->maxpacket;
+ USBx_OUTEP(ep->num)->DOEPTSIZ |= (USB_OTG_DOEPTSIZ_PKTCNT & (pktcnt << 19)); ;
+ USBx_OUTEP(ep->num)->DOEPTSIZ |= (USB_OTG_DOEPTSIZ_XFRSIZ & (ep->maxpacket * pktcnt));
+ }
+
+ if (ep->type == EP_TYPE_ISOC)
+ {
+ if ((USBx_DEVICE->DSTS & ( 1 << 8 )) == 0)
+ {
+ USBx_OUTEP(ep->num)->DOEPCTL |= USB_OTG_DOEPCTL_SODDFRM;
+ }
+ else
+ {
+ USBx_OUTEP(ep->num)->DOEPCTL |= USB_OTG_DOEPCTL_SD0PID_SEVNFRM;
+ }
+ }
+ /* EP enable */
+ USBx_OUTEP(ep->num)->DOEPCTL |= (USB_OTG_DOEPCTL_CNAK | USB_OTG_DOEPCTL_EPENA);
+ }
+ return HAL_OK;
+}
+
+/**
+ * @brief USB_EP0StartXfer : setup and starts a transfer over the EP 0
+ * @param USBx: Selected device
+ * @param ep: pointer to endpoint structure
+ * @param dma: USB dma enabled or disabled
+ * This parameter can be one of these values:
+ * 0 : DMA feature not used
+ * 1 : DMA feature used
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_EP0StartXfer(USB_OTG_GlobalTypeDef *USBx , USB_OTG_EPTypeDef *ep, uint8_t dma)
+{
+ /* IN endpoint */
+ if (ep->is_in == 1)
+ {
+ /* Zero Length Packet? */
+ if (ep->xfer_len == 0)
+ {
+ USBx_INEP(ep->num)->DIEPTSIZ &= ~(USB_OTG_DIEPTSIZ_PKTCNT);
+ USBx_INEP(ep->num)->DIEPTSIZ |= (USB_OTG_DIEPTSIZ_PKTCNT & (1 << 19)) ;
+ USBx_INEP(ep->num)->DIEPTSIZ &= ~(USB_OTG_DIEPTSIZ_XFRSIZ);
+ }
+ else
+ {
+ /* Program the transfer size and packet count
+ * as follows: xfersize = N * maxpacket +
+ * short_packet pktcnt = N + (short_packet
+ * exist ? 1 : 0)
+ */
+ USBx_INEP(ep->num)->DIEPTSIZ &= ~(USB_OTG_DIEPTSIZ_XFRSIZ);
+ USBx_INEP(ep->num)->DIEPTSIZ &= ~(USB_OTG_DIEPTSIZ_PKTCNT);
+
+ if(ep->xfer_len > ep->maxpacket)
+ {
+ ep->xfer_len = ep->maxpacket;
+ }
+ USBx_INEP(ep->num)->DIEPTSIZ |= (USB_OTG_DIEPTSIZ_PKTCNT & (1 << 19)) ;
+ USBx_INEP(ep->num)->DIEPTSIZ |= (USB_OTG_DIEPTSIZ_XFRSIZ & ep->xfer_len);
+
+ }
+
+ /* Enable the Tx FIFO Empty Interrupt for this EP */
+ if (ep->xfer_len > 0)
+ {
+ atomic_set_u32(&USBx_DEVICE->DIEPEMPMSK, 1 << (ep->num));
+ }
+
+ /* EP enable, IN data in FIFO */
+ USBx_INEP(ep->num)->DIEPCTL |= (USB_OTG_DIEPCTL_CNAK | USB_OTG_DIEPCTL_EPENA);
+ }
+ else /* OUT endpoint */
+ {
+ /* Program the transfer size and packet count as follows:
+ * pktcnt = N
+ * xfersize = N * maxpacket
+ */
+ USBx_OUTEP(ep->num)->DOEPTSIZ &= ~(USB_OTG_DOEPTSIZ_XFRSIZ);
+ USBx_OUTEP(ep->num)->DOEPTSIZ &= ~(USB_OTG_DOEPTSIZ_PKTCNT);
+
+ if (ep->xfer_len > 0)
+ {
+ ep->xfer_len = ep->maxpacket;
+ }
+
+ USBx_OUTEP(ep->num)->DOEPTSIZ |= (USB_OTG_DOEPTSIZ_PKTCNT & (1 << 19));
+ USBx_OUTEP(ep->num)->DOEPTSIZ |= (USB_OTG_DOEPTSIZ_XFRSIZ & (ep->maxpacket));
+
+ /* EP enable */
+ USBx_OUTEP(ep->num)->DOEPCTL |= (USB_OTG_DOEPCTL_CNAK | USB_OTG_DOEPCTL_EPENA);
+ }
+ return HAL_OK;
+}
+
+/**
+ * @brief USB_WritePacket : Writes a packet into the Tx FIFO associated
+ * with the EP/channel
+ * @param USBx: Selected device
+ * @param src: pointer to source buffer
+ * @param ch_ep_num: endpoint or host channel number
+ * @param len: Number of bytes to write
+ * @param dma: USB dma enabled or disabled
+ * This parameter can be one of these values:
+ * 0 : DMA feature not used
+ * 1 : DMA feature used
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_WritePacket(USB_OTG_GlobalTypeDef *USBx, uint8_t *src, uint8_t ch_ep_num, uint16_t len, uint8_t dma)
+{
+ uint32_t count32b= 0 , index= 0;
+ count32b = (len + 3) / 4;
+ for (index = 0; index < count32b; index++, src += 4)
+ {
+ USBx_DFIFO(ch_ep_num) = *((__packed uint32_t *)src);
+ }
+ return HAL_OK;
+}
+
+/**
+ * @brief USB_ReadPacket : read a packet from the Tx FIFO associated
+ * with the EP/channel
+ * @param USBx: Selected device
+ * @param src: source pointer
+ * @param ch_ep_num: endpoint or host channel number
+ * @param len: Number of bytes to read
+ * @param dma: USB dma enabled or disabled
+ * This parameter can be one of these values:
+ * 0 : DMA feature not used
+ * 1 : DMA feature used
+ * @retval pointer to destination buffer
+ */
+void *USB_ReadPacket(USB_OTG_GlobalTypeDef *USBx, uint8_t *dest, uint16_t len)
+{
+ uint32_t index=0;
+ uint32_t count32b = (len + 3) / 4;
+
+ for ( index = 0; index < count32b; index++, dest += 4 )
+ {
+ *(__packed uint32_t *)dest = USBx_DFIFO(0);
+
+ }
+ return ((void *)dest);
+}
+
+/**
+ * @brief USB_EPSetStall : set a stall condition over an EP
+ * @param USBx: Selected device
+ * @param ep: pointer to endpoint structure
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_EPSetStall(USB_OTG_GlobalTypeDef *USBx , USB_OTG_EPTypeDef *ep)
+{
+ if (ep->is_in == 1)
+ {
+ if (((USBx_INEP(ep->num)->DIEPCTL) & USB_OTG_DIEPCTL_EPENA) == 0)
+ {
+ USBx_INEP(ep->num)->DIEPCTL &= ~(USB_OTG_DIEPCTL_EPDIS);
+ }
+ USBx_INEP(ep->num)->DIEPCTL |= USB_OTG_DIEPCTL_STALL;
+ }
+ else
+ {
+ if (((USBx_OUTEP(ep->num)->DOEPCTL) & USB_OTG_DOEPCTL_EPENA) == 0)
+ {
+ USBx_OUTEP(ep->num)->DOEPCTL &= ~(USB_OTG_DOEPCTL_EPDIS);
+ }
+ USBx_OUTEP(ep->num)->DOEPCTL |= USB_OTG_DOEPCTL_STALL;
+ }
+ return HAL_OK;
+}
+
+
+/**
+ * @brief USB_EPClearStall : Clear a stall condition over an EP
+ * @param USBx: Selected device
+ * @param ep: pointer to endpoint structure
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_EPClearStall(USB_OTG_GlobalTypeDef *USBx, USB_OTG_EPTypeDef *ep)
+{
+ if (ep->is_in == 1)
+ {
+ USBx_INEP(ep->num)->DIEPCTL &= ~USB_OTG_DIEPCTL_STALL;
+ if (ep->type == EP_TYPE_INTR || ep->type == EP_TYPE_BULK)
+ {
+ USBx_INEP(ep->num)->DIEPCTL |= USB_OTG_DIEPCTL_SD0PID_SEVNFRM; /* DATA0 */
+ }
+ }
+ else
+ {
+ USBx_OUTEP(ep->num)->DOEPCTL &= ~USB_OTG_DOEPCTL_STALL;
+ if (ep->type == EP_TYPE_INTR || ep->type == EP_TYPE_BULK)
+ {
+ USBx_OUTEP(ep->num)->DOEPCTL |= USB_OTG_DOEPCTL_SD0PID_SEVNFRM; /* DATA0 */
+ }
+ }
+ return HAL_OK;
+}
+
+/**
+ * @brief USB_StopDevice : Stop the USB device mode
+ * @param USBx: Selected device
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_StopDevice(USB_OTG_GlobalTypeDef *USBx)
+{
+ uint32_t index;
+
+ /* Clear Pending interrupt */
+ for (index = 0; index < 15 ; index++)
+ {
+ USBx_INEP(index)->DIEPINT = 0xFF;
+ USBx_OUTEP(index)->DOEPINT = 0xFF;
+ }
+ USBx_DEVICE->DAINT = 0xFFFFFFFF;
+
+ /* Clear interrupt masks */
+ USBx_DEVICE->DIEPMSK = 0;
+ USBx_DEVICE->DOEPMSK = 0;
+ USBx_DEVICE->DAINTMSK = 0;
+
+ /* Flush the FIFO */
+ USB_FlushRxFifo(USBx);
+ USB_FlushTxFifo(USBx , 0x10 );
+
+ return HAL_OK;
+}
+
+/**
+ * @brief USB_SetDevAddress : Stop the USB device mode
+ * @param USBx: Selected device
+ * @param address: new device address to be assigned
+ * This parameter can be a value from 0 to 255
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_SetDevAddress (USB_OTG_GlobalTypeDef *USBx, uint8_t address)
+{
+ USBx_DEVICE->DCFG &= ~ (USB_OTG_DCFG_DAD);
+ USBx_DEVICE->DCFG |= (address << 4) & USB_OTG_DCFG_DAD ;
+
+ return HAL_OK;
+}
+
+/**
+ * @brief USB_DevConnect : Connect the USB device by enabling the pull-up/pull-down
+ * @param USBx: Selected device
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_DevConnect (USB_OTG_GlobalTypeDef *USBx)
+{
+ USBx_DEVICE->DCTL &= ~USB_OTG_DCTL_SDIS ;
+ HAL_Delay(3);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief USB_DevDisconnect : Disconnect the USB device by disabling the pull-up/pull-down
+ * @param USBx: Selected device
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_DevDisconnect (USB_OTG_GlobalTypeDef *USBx)
+{
+ USBx_DEVICE->DCTL |= USB_OTG_DCTL_SDIS ;
+ HAL_Delay(3);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief USB_ReadInterrupts: return the global USB interrupt status
+ * @param USBx: Selected device
+ * @retval HAL status
+ */
+uint32_t USB_ReadInterrupts (USB_OTG_GlobalTypeDef *USBx)
+{
+ uint32_t tmpreg = 0;
+
+ tmpreg = USBx->GINTSTS;
+ tmpreg &= USBx->GINTMSK;
+ return tmpreg;
+}
+
+/**
+ * @brief USB_ReadDevAllOutEpInterrupt: return the USB device OUT endpoints interrupt status
+ * @param USBx: Selected device
+ * @retval HAL status
+ */
+uint32_t USB_ReadDevAllOutEpInterrupt (USB_OTG_GlobalTypeDef *USBx)
+{
+ uint32_t tmpreg;
+ tmpreg = USBx_DEVICE->DAINT;
+ tmpreg &= USBx_DEVICE->DAINTMSK;
+ return ((tmpreg & 0xffff0000) >> 16);
+}
+
+/**
+ * @brief USB_ReadDevAllInEpInterrupt: return the USB device IN endpoints interrupt status
+ * @param USBx: Selected device
+ * @retval HAL status
+ */
+uint32_t USB_ReadDevAllInEpInterrupt (USB_OTG_GlobalTypeDef *USBx)
+{
+ uint32_t tmpreg;
+ tmpreg = USBx_DEVICE->DAINT;
+ tmpreg &= USBx_DEVICE->DAINTMSK;
+ return ((tmpreg & 0xFFFF));
+}
+
+/**
+ * @brief Returns Device OUT EP Interrupt register
+ * @param USBx: Selected device
+ * @param epnum: endpoint number
+ * This parameter can be a value from 0 to 15
+ * @retval Device OUT EP Interrupt register
+ */
+uint32_t USB_ReadDevOutEPInterrupt (USB_OTG_GlobalTypeDef *USBx , uint8_t epnum)
+{
+ uint32_t tmpreg;
+ tmpreg = USBx_OUTEP(epnum)->DOEPINT;
+ tmpreg &= USBx_DEVICE->DOEPMSK;
+ return tmpreg;
+}
+
+/**
+ * @brief Returns Device IN EP Interrupt register
+ * @param USBx: Selected device
+ * @param epnum: endpoint number
+ * This parameter can be a value from 0 to 15
+ * @retval Device IN EP Interrupt register
+ */
+uint32_t USB_ReadDevInEPInterrupt (USB_OTG_GlobalTypeDef *USBx , uint8_t epnum)
+{
+ uint32_t tmpreg = 0, msk = 0, emp = 0;
+
+ msk = USBx_DEVICE->DIEPMSK;
+ emp = USBx_DEVICE->DIEPEMPMSK;
+ msk |= ((emp >> epnum) & 0x1) << 7;
+ tmpreg = USBx_INEP(epnum)->DIEPINT & msk;
+ return tmpreg;
+}
+
+/**
+ * @brief USB_ClearInterrupts: clear a USB interrupt
+ * @param USBx: Selected device
+ * @param interrupt: interrupt flag
+ * @retval None
+ */
+void USB_ClearInterrupts (USB_OTG_GlobalTypeDef *USBx, uint32_t interrupt)
+{
+ USBx->GINTSTS |= interrupt;
+}
+
+/**
+ * @brief Returns USB core mode
+ * @param USBx: Selected device
+ * @retval return core mode : Host or Device
+ * This parameter can be one of these values:
+ * 0 : Host
+ * 1 : Device
+ */
+uint32_t USB_GetMode(USB_OTG_GlobalTypeDef *USBx)
+{
+ return ((USBx->GINTSTS ) & 0x1);
+}
+
+
+/**
+ * @brief Activate EP0 for Setup transactions
+ * @param USBx: Selected device
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_ActivateSetup (USB_OTG_GlobalTypeDef *USBx)
+{
+ /* Set the MPS of the IN EP based on the enumeration speed */
+ USBx_INEP(0)->DIEPCTL &= ~USB_OTG_DIEPCTL_MPSIZ;
+
+ if((USBx_DEVICE->DSTS & USB_OTG_DSTS_ENUMSPD) == DSTS_ENUMSPD_LS_PHY_6MHZ)
+ {
+ USBx_INEP(0)->DIEPCTL |= 3;
+ }
+ USBx_DEVICE->DCTL |= USB_OTG_DCTL_CGINAK;
+
+ return HAL_OK;
+}
+
+
+/**
+ * @brief Prepare the EP0 to start the first control setup
+ * @param USBx: Selected device
+ * @param dma: USB dma enabled or disabled
+ * This parameter can be one of these values:
+ * 0 : DMA feature not used
+ * 1 : DMA feature used
+ * @param psetup: pointer to setup packet
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_EP0_OutStart(USB_OTG_GlobalTypeDef *USBx, uint8_t dma, uint8_t *psetup)
+{
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(psetup);
+
+ USBx_OUTEP(0)->DOEPTSIZ = 0;
+ USBx_OUTEP(0)->DOEPTSIZ |= (USB_OTG_DOEPTSIZ_PKTCNT & (1 << 19)) ;
+ USBx_OUTEP(0)->DOEPTSIZ |= (3 * 8);
+ USBx_OUTEP(0)->DOEPTSIZ |= USB_OTG_DOEPTSIZ_STUPCNT;
+
+ return HAL_OK;
+}
+
+/**
+ * @brief USB_HostInit : Initializes the USB OTG controller registers
+ * for Host mode
+ * @param USBx: Selected device
+ * @param cfg: pointer to a USB_OTG_CfgTypeDef structure that contains
+ * the configuration information for the specified USBx peripheral.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_HostInit (USB_OTG_GlobalTypeDef *USBx, USB_OTG_CfgTypeDef cfg)
+{
+ uint32_t index = 0;
+
+ /* Restart the Phy Clock */
+ USBx_PCGCCTL = 0;
+
+ /* Disable the FS/LS support mode only */
+ if((cfg.speed == USB_OTG_SPEED_FULL)&&
+ (USBx != USB_OTG_FS))
+ {
+ USBx_HOST->HCFG |= USB_OTG_HCFG_FSLSS;
+ }
+ else
+ {
+ USBx_HOST->HCFG &= ~(USB_OTG_HCFG_FSLSS);
+ }
+
+ /* Make sure the FIFOs are flushed. */
+ USB_FlushTxFifo(USBx, 0x10 ); /* all Tx FIFOs */
+ USB_FlushRxFifo(USBx);
+
+ /* Clear all pending HC Interrupts */
+ for (index = 0; index < cfg.Host_channels; index++)
+ {
+ USBx_HC(index)->HCINT = 0xFFFFFFFF;
+ USBx_HC(index)->HCINTMSK = 0;
+ }
+
+ /* Enable VBUS driving */
+ USB_DriveVbus(USBx, 1);
+
+ HAL_Delay(200);
+
+ /* Disable all interrupts. */
+ USBx->GINTMSK = 0;
+
+ /* Clear any pending interrupts */
+ USBx->GINTSTS = 0xFFFFFFFF;
+
+ /* set Rx FIFO size */
+ USBx->GRXFSIZ = (uint32_t )0x80;
+ USBx->DIEPTXF0_HNPTXFSIZ = (uint32_t )(((0x60 << 16)& USB_OTG_NPTXFD) | 0x80);
+ USBx->HPTXFSIZ = (uint32_t )(((0x40 << 16)& USB_OTG_HPTXFSIZ_PTXFD) | 0xE0);
+
+ /* Enable the common interrupts */
+ if (cfg.dma_enable == DISABLE)
+ {
+ USBx->GINTMSK |= USB_OTG_GINTMSK_RXFLVLM;
+ }
+
+ /* Enable interrupts matching to the Host mode ONLY */
+ USBx->GINTMSK |= (USB_OTG_GINTMSK_PRTIM | USB_OTG_GINTMSK_HCIM |\
+ USB_OTG_GINTMSK_SOFM |USB_OTG_GINTSTS_DISCINT|\
+ USB_OTG_GINTMSK_PXFRM_IISOOXFRM | USB_OTG_GINTMSK_WUIM);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief USB_InitFSLSPClkSel : Initializes the FSLSPClkSel field of the
+ * HCFG register on the PHY type and set the right frame interval
+ * @param USBx: Selected device
+ * @param freq: clock frequency
+ * This parameter can be one of these values:
+ * HCFG_48_MHZ : Full Speed 48 MHz Clock
+ * HCFG_6_MHZ : Low Speed 6 MHz Clock
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_InitFSLSPClkSel(USB_OTG_GlobalTypeDef *USBx , uint8_t freq)
+{
+ USBx_HOST->HCFG &= ~(USB_OTG_HCFG_FSLSPCS);
+ USBx_HOST->HCFG |= (freq & USB_OTG_HCFG_FSLSPCS);
+
+ if (freq == HCFG_48_MHZ)
+ {
+ USBx_HOST->HFIR = (uint32_t)48000;
+ }
+ else if (freq == HCFG_6_MHZ)
+ {
+ USBx_HOST->HFIR = (uint32_t)6000;
+ }
+ return HAL_OK;
+}
+
+/**
+* @brief USB_OTG_ResetPort : Reset Host Port
+ * @param USBx: Selected device
+ * @retval HAL status
+ * @note (1)The application must wait at least 10 ms
+ * before clearing the reset bit.
+ */
+HAL_StatusTypeDef USB_ResetPort(USB_OTG_GlobalTypeDef *USBx)
+{
+ __IO uint32_t hprt0 = 0;
+
+ hprt0 = USBx_HPRT0;
+
+ hprt0 &= ~(USB_OTG_HPRT_PENA | USB_OTG_HPRT_PCDET |\
+ USB_OTG_HPRT_PENCHNG | USB_OTG_HPRT_POCCHNG );
+
+ USBx_HPRT0 = (USB_OTG_HPRT_PRST | hprt0);
+ HAL_Delay (10); /* See Note #1 */
+ USBx_HPRT0 = ((~USB_OTG_HPRT_PRST) & hprt0);
+ return HAL_OK;
+}
+
+/**
+ * @brief USB_DriveVbus : activate or de-activate vbus
+ * @param state: VBUS state
+ * This parameter can be one of these values:
+ * 0 : VBUS Active
+ * 1 : VBUS Inactive
+ * @retval HAL status
+*/
+HAL_StatusTypeDef USB_DriveVbus (USB_OTG_GlobalTypeDef *USBx, uint8_t state)
+{
+ __IO uint32_t hprt0 = 0;
+
+ hprt0 = USBx_HPRT0;
+ hprt0 &= ~(USB_OTG_HPRT_PENA | USB_OTG_HPRT_PCDET |\
+ USB_OTG_HPRT_PENCHNG | USB_OTG_HPRT_POCCHNG );
+
+ if (((hprt0 & USB_OTG_HPRT_PPWR) == 0 ) && (state == 1 ))
+ {
+ USBx_HPRT0 = (USB_OTG_HPRT_PPWR | hprt0);
+ }
+ if (((hprt0 & USB_OTG_HPRT_PPWR) == USB_OTG_HPRT_PPWR) && (state == 0 ))
+ {
+ USBx_HPRT0 = ((~USB_OTG_HPRT_PPWR) & hprt0);
+ }
+ return HAL_OK;
+}
+
+/**
+ * @brief Return Host Core speed
+ * @param USBx: Selected device
+ * @retval speed : Host speed
+ * This parameter can be one of these values:
+ * @arg USB_OTG_SPEED_HIGH: High speed mode
+ * @arg USB_OTG_SPEED_FULL: Full speed mode
+ * @arg USB_OTG_SPEED_LOW: Low speed mode
+ */
+uint32_t USB_GetHostSpeed (USB_OTG_GlobalTypeDef *USBx)
+{
+ __IO uint32_t hprt0 = 0;
+
+ hprt0 = USBx_HPRT0;
+ return ((hprt0 & USB_OTG_HPRT_PSPD) >> 17);
+}
+
+/**
+ * @brief Return Host Current Frame number
+ * @param USBx: Selected device
+ * @retval current frame number
+*/
+uint32_t USB_GetCurrentFrame (USB_OTG_GlobalTypeDef *USBx)
+{
+ return (USBx_HOST->HFNUM & USB_OTG_HFNUM_FRNUM);
+}
+
+/**
+ * @brief Initialize a host channel
+ * @param USBx: Selected device
+ * @param ch_num : Channel number
+ * This parameter can be a value from 1 to 15
+ * @param epnum: Endpoint number
+ * This parameter can be a value from 1 to 15
+ * @param dev_address: Current device address
+ * This parameter can be a value from 0 to 255
+ * @param speed: Current device speed
+ * This parameter can be one of these values:
+ * @arg USB_OTG_SPEED_HIGH: High speed mode
+ * @arg USB_OTG_SPEED_FULL: Full speed mode
+ * @arg USB_OTG_SPEED_LOW: Low speed mode
+ * @param ep_type: Endpoint Type
+ * This parameter can be one of these values:
+ * @arg EP_TYPE_CTRL: Control type
+ * @arg EP_TYPE_ISOC: Isochronous type
+ * @arg EP_TYPE_BULK: Bulk type
+ * @arg EP_TYPE_INTR: Interrupt type
+ * @param mps: Max Packet Size
+ * This parameter can be a value from 0 to32K
+ * @retval HAL state
+ */
+HAL_StatusTypeDef USB_HC_Init(USB_OTG_GlobalTypeDef *USBx,
+ uint8_t ch_num,
+ uint8_t epnum,
+ uint8_t dev_address,
+ uint8_t speed,
+ uint8_t ep_type,
+ uint16_t mps)
+{
+
+ /* Clear old interrupt conditions for this host channel. */
+ USBx_HC(ch_num)->HCINT = 0xFFFFFFFF;
+
+ /* Enable channel interrupts required for this transfer. */
+ switch (ep_type)
+ {
+ case EP_TYPE_CTRL:
+ case EP_TYPE_BULK:
+
+ USBx_HC(ch_num)->HCINTMSK = USB_OTG_HCINTMSK_XFRCM |\
+ USB_OTG_HCINTMSK_STALLM |\
+ USB_OTG_HCINTMSK_TXERRM |\
+ USB_OTG_HCINTMSK_DTERRM |\
+ USB_OTG_HCINTMSK_AHBERR |\
+ USB_OTG_HCINTMSK_NAKM ;
+
+ if (epnum & 0x80)
+ {
+ USBx_HC(ch_num)->HCINTMSK |= USB_OTG_HCINTMSK_BBERRM;
+ }
+ break;
+
+ case EP_TYPE_INTR:
+
+ USBx_HC(ch_num)->HCINTMSK = USB_OTG_HCINTMSK_XFRCM |\
+ USB_OTG_HCINTMSK_STALLM |\
+ USB_OTG_HCINTMSK_TXERRM |\
+ USB_OTG_HCINTMSK_DTERRM |\
+ USB_OTG_HCINTMSK_NAKM |\
+ USB_OTG_HCINTMSK_AHBERR |\
+ USB_OTG_HCINTMSK_FRMORM ;
+
+ if (epnum & 0x80)
+ {
+ USBx_HC(ch_num)->HCINTMSK |= USB_OTG_HCINTMSK_BBERRM;
+ }
+
+ break;
+ case EP_TYPE_ISOC:
+
+ USBx_HC(ch_num)->HCINTMSK = USB_OTG_HCINTMSK_XFRCM |\
+ USB_OTG_HCINTMSK_ACKM |\
+ USB_OTG_HCINTMSK_AHBERR |\
+ USB_OTG_HCINTMSK_FRMORM ;
+
+ if (epnum & 0x80)
+ {
+ USBx_HC(ch_num)->HCINTMSK |= (USB_OTG_HCINTMSK_TXERRM | USB_OTG_HCINTMSK_BBERRM);
+ }
+ break;
+ }
+
+ /* Enable the top level host channel interrupt. */
+ USBx_HOST->HAINTMSK |= (1 << ch_num);
+
+ /* Make sure host channel interrupts are enabled. */
+ USBx->GINTMSK |= USB_OTG_GINTMSK_HCIM;
+
+ /* Program the HCCHAR register */
+ USBx_HC(ch_num)->HCCHAR = (((dev_address << 22) & USB_OTG_HCCHAR_DAD) |\
+ (((epnum & 0x7F)<< 11) & USB_OTG_HCCHAR_EPNUM)|\
+ ((((epnum & 0x80) == 0x80)<< 15) & USB_OTG_HCCHAR_EPDIR)|\
+ (((speed == HPRT0_PRTSPD_LOW_SPEED)<< 17) & USB_OTG_HCCHAR_LSDEV)|\
+ ((ep_type << 18) & USB_OTG_HCCHAR_EPTYP)|\
+ (mps & USB_OTG_HCCHAR_MPSIZ));
+
+ if (ep_type == EP_TYPE_INTR)
+ {
+ USBx_HC(ch_num)->HCCHAR |= USB_OTG_HCCHAR_ODDFRM ;
+ }
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Start a transfer over a host channel
+ * @param USBx: Selected device
+ * @param hc: pointer to host channel structure
+ * @param dma: USB dma enabled or disabled
+ * This parameter can be one of these values:
+ * 0 : DMA feature not used
+ * 1 : DMA feature used
+ * @retval HAL state
+ */
+#if defined (__CC_ARM) /*!< ARM Compiler */
+#pragma O0
+#elif defined (__GNUC__) /*!< GNU Compiler */
+#pragma GCC optimize ("O0")
+#endif /* __CC_ARM */
+HAL_StatusTypeDef USB_HC_StartXfer(USB_OTG_GlobalTypeDef *USBx, USB_OTG_HCTypeDef *hc, uint8_t dma)
+{
+ uint8_t is_oddframe = 0;
+ uint16_t len_words = 0;
+ uint16_t num_packets = 0;
+ uint16_t max_hc_pkt_count = 256;
+ uint32_t tmpreg = 0;
+
+ /* Compute the expected number of packets associated to the transfer */
+ if (hc->xfer_len > 0)
+ {
+ num_packets = (hc->xfer_len + hc->max_packet - 1) / hc->max_packet;
+
+ if (num_packets > max_hc_pkt_count)
+ {
+ num_packets = max_hc_pkt_count;
+ hc->xfer_len = num_packets * hc->max_packet;
+ }
+ }
+ else
+ {
+ num_packets = 1;
+ }
+ if (hc->ep_is_in)
+ {
+ hc->xfer_len = num_packets * hc->max_packet;
+ }
+
+ /* Initialize the HCTSIZn register */
+ USBx_HC(hc->ch_num)->HCTSIZ = (((hc->xfer_len) & USB_OTG_HCTSIZ_XFRSIZ)) |\
+ ((num_packets << 19) & USB_OTG_HCTSIZ_PKTCNT) |\
+ (((hc->data_pid) << 29) & USB_OTG_HCTSIZ_DPID);
+
+ if (dma)
+ {
+ /* xfer_buff MUST be 32-bits aligned */
+ USBx_HC(hc->ch_num)->HCDMA = (uint32_t)hc->xfer_buff;
+ }
+
+ is_oddframe = (USBx_HOST->HFNUM & 0x01) ? 0 : 1;
+ USBx_HC(hc->ch_num)->HCCHAR &= ~USB_OTG_HCCHAR_ODDFRM;
+ USBx_HC(hc->ch_num)->HCCHAR |= (is_oddframe << 29);
+
+ /* Set host channel enable */
+ tmpreg = USBx_HC(hc->ch_num)->HCCHAR;
+ tmpreg &= ~USB_OTG_HCCHAR_CHDIS;
+ tmpreg |= USB_OTG_HCCHAR_CHENA;
+ USBx_HC(hc->ch_num)->HCCHAR = tmpreg;
+
+ if (dma == 0) /* Slave mode */
+ {
+ if((hc->ep_is_in == 0) && (hc->xfer_len > 0))
+ {
+ switch(hc->ep_type)
+ {
+ /* Non periodic transfer */
+ case EP_TYPE_CTRL:
+ case EP_TYPE_BULK:
+
+ len_words = (hc->xfer_len + 3) / 4;
+
+ /* check if there is enough space in FIFO space */
+ if(len_words > (USBx->HNPTXSTS & 0xFFFF))
+ {
+ /* need to process data in nptxfempty interrupt */
+ USBx->GINTMSK |= USB_OTG_GINTMSK_NPTXFEM;
+ }
+ break;
+ /* Periodic transfer */
+ case EP_TYPE_INTR:
+ case EP_TYPE_ISOC:
+ len_words = (hc->xfer_len + 3) / 4;
+ /* check if there is enough space in FIFO space */
+ if(len_words > (USBx_HOST->HPTXSTS & 0xFFFF)) /* split the transfer */
+ {
+ /* need to process data in ptxfempty interrupt */
+ USBx->GINTMSK |= USB_OTG_GINTMSK_PTXFEM;
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ /* Write packet into the Tx FIFO. */
+ USB_WritePacket(USBx, hc->xfer_buff, hc->ch_num, hc->xfer_len, 0);
+ hc->xfer_count = hc->xfer_len;
+
+ }
+ }
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Read all host channel interrupts status
+ * @param USBx: Selected device
+ * @retval HAL state
+ */
+uint32_t USB_HC_ReadInterrupt (USB_OTG_GlobalTypeDef *USBx)
+{
+ return ((USBx_HOST->HAINT) & 0xFFFF);
+}
+
+/**
+ * @brief Halt a host channel
+ * @param USBx: Selected device
+ * @param hc_num: Host Channel number
+ * This parameter can be a value from 1 to 15
+ * @retval HAL state
+ */
+HAL_StatusTypeDef USB_HC_Halt(USB_OTG_GlobalTypeDef *USBx , uint8_t hc_num)
+{
+ uint32_t count = 0;
+
+ /* Check for space in the request queue to issue the halt. */
+ if (((USBx_HC(hc_num)->HCCHAR) & (HCCHAR_CTRL << 18)) || ((USBx_HC(hc_num)->HCCHAR) & (HCCHAR_BULK << 18)))
+ {
+ USBx_HC(hc_num)->HCCHAR |= USB_OTG_HCCHAR_CHDIS;
+
+ if ((USBx->HNPTXSTS & 0xFFFF) == 0)
+ {
+ USBx_HC(hc_num)->HCCHAR &= ~USB_OTG_HCCHAR_CHENA;
+ USBx_HC(hc_num)->HCCHAR |= USB_OTG_HCCHAR_CHENA;
+ USBx_HC(hc_num)->HCCHAR &= ~USB_OTG_HCCHAR_EPDIR;
+ do
+ {
+ if (++count > 1000)
+ {
+ break;
+ }
+ }
+ while ((USBx_HC(hc_num)->HCCHAR & USB_OTG_HCCHAR_CHENA) == USB_OTG_HCCHAR_CHENA);
+ }
+ else
+ {
+ USBx_HC(hc_num)->HCCHAR |= USB_OTG_HCCHAR_CHENA;
+ }
+ }
+ else
+ {
+ USBx_HC(hc_num)->HCCHAR |= USB_OTG_HCCHAR_CHDIS;
+
+ if ((USBx_HOST->HPTXSTS & 0xFFFF) == 0)
+ {
+ USBx_HC(hc_num)->HCCHAR &= ~USB_OTG_HCCHAR_CHENA;
+ USBx_HC(hc_num)->HCCHAR |= USB_OTG_HCCHAR_CHENA;
+ USBx_HC(hc_num)->HCCHAR &= ~USB_OTG_HCCHAR_EPDIR;
+ do
+ {
+ if (++count > 1000)
+ {
+ break;
+ }
+ }
+ while ((USBx_HC(hc_num)->HCCHAR & USB_OTG_HCCHAR_CHENA) == USB_OTG_HCCHAR_CHENA);
+ }
+ else
+ {
+ USBx_HC(hc_num)->HCCHAR |= USB_OTG_HCCHAR_CHENA;
+ }
+ }
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Initiate Do Ping protocol
+ * @param USBx: Selected device
+ * @param hc_num: Host Channel number
+ * This parameter can be a value from 1 to 15
+ * @retval HAL state
+ */
+HAL_StatusTypeDef USB_DoPing(USB_OTG_GlobalTypeDef *USBx , uint8_t ch_num)
+{
+ uint8_t num_packets = 1;
+ uint32_t tmpreg = 0;
+
+ USBx_HC(ch_num)->HCTSIZ = ((num_packets << 19) & USB_OTG_HCTSIZ_PKTCNT) |\
+ USB_OTG_HCTSIZ_DOPING;
+
+ /* Set host channel enable */
+ tmpreg = USBx_HC(ch_num)->HCCHAR;
+ tmpreg &= ~USB_OTG_HCCHAR_CHDIS;
+ tmpreg |= USB_OTG_HCCHAR_CHENA;
+ USBx_HC(ch_num)->HCCHAR = tmpreg;
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Stop Host Core
+ * @param USBx: Selected device
+ * @retval HAL state
+ */
+HAL_StatusTypeDef USB_StopHost(USB_OTG_GlobalTypeDef *USBx)
+{
+ uint8_t index;
+ uint32_t count = 0;
+ uint32_t value = 0;
+
+ USB_DisableGlobalInt(USBx);
+
+ /* Flush FIFO */
+ USB_FlushTxFifo(USBx, 0x10);
+ USB_FlushRxFifo(USBx);
+
+ /* Flush out any leftover queued requests. */
+ for (index = 0; index <= 15; index++)
+ {
+ value = USBx_HC(index)->HCCHAR;
+ value |= USB_OTG_HCCHAR_CHDIS;
+ value &= ~USB_OTG_HCCHAR_CHENA;
+ value &= ~USB_OTG_HCCHAR_EPDIR;
+ USBx_HC(index)->HCCHAR = value;
+ }
+
+ /* Halt all channels to put them into a known state. */
+ for (index = 0; index <= 15; index++)
+ {
+ value = USBx_HC(index)->HCCHAR ;
+ value |= USB_OTG_HCCHAR_CHDIS;
+ value |= USB_OTG_HCCHAR_CHENA;
+ value &= ~USB_OTG_HCCHAR_EPDIR;
+ USBx_HC(index)->HCCHAR = value;
+
+ USBx_HC(index)->HCCHAR = value;
+ do
+ {
+ if (++count > 1000)
+ {
+ break;
+ }
+ }
+ while ((USBx_HC(index)->HCCHAR & USB_OTG_HCCHAR_CHENA) == USB_OTG_HCCHAR_CHENA);
+ }
+
+ /* Clear any pending Host interrupts */
+ USBx_HOST->HAINT = 0xFFFFFFFF;
+ USBx->GINTSTS = 0xFFFFFFFF;
+ USB_EnableGlobalInt(USBx);
+ return HAL_OK;
+}
+
+/**
+ * @brief USB_ActivateRemoteWakeup : active remote wakeup signalling
+ * @param USBx : Selected device
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_ActivateRemoteWakeup(USB_OTG_GlobalTypeDef *USBx)
+{
+ if((USBx_DEVICE->DSTS & USB_OTG_DSTS_SUSPSTS) == USB_OTG_DSTS_SUSPSTS)
+ {
+ /* active Remote wakeup signalling */
+ USBx_DEVICE->DCTL |= USB_OTG_DCTL_RWUSIG;
+ }
+ return HAL_OK;
+}
+
+/**
+ * @brief USB_DeActivateRemoteWakeup : de-active remote wakeup signalling
+ * @param USBx : Selected device
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_DeActivateRemoteWakeup(USB_OTG_GlobalTypeDef *USBx)
+{
+ /* active Remote wakeup signalling */
+ USBx_DEVICE->DCTL &= ~(USB_OTG_DCTL_RWUSIG);
+ return HAL_OK;
+}
+
+#endif /* USB_OTG_FS */
+
+/*==============================================================================
+ USB Device FS peripheral available on STM32L432xx, STM32L433xx, STM32L442xx)
+ and STM32L443xx devices
+==============================================================================*/
+#if defined (USB)
+/**
+ * @brief Initializes the USB Core
+ * @param USBx: USB Instance
+ * @param cfg : pointer to a USB_CfgTypeDef structure that contains
+ * the configuration information for the specified USBx peripheral.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_CoreInit(USB_TypeDef *USBx, USB_CfgTypeDef cfg)
+{
+ /* NOTE : - This function is not required by USB Device FS peripheral, it is used
+ only by USB OTG FS peripheral.
+ - This function is added to ensure compatibility across platforms.
+ */
+
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(USBx);
+ UNUSED(cfg);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief USB_EnableGlobalInt
+ * Enables the controller's Global Int in the AHB Config reg
+ * @param USBx : Selected device
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_EnableGlobalInt(USB_TypeDef *USBx)
+{
+ uint32_t winterruptmask = 0;
+
+ /* Set winterruptmask variable */
+ winterruptmask = USB_CNTR_CTRM | USB_CNTR_WKUPM | USB_CNTR_SUSPM | USB_CNTR_ERRM \
+ | USB_CNTR_ESOFM | USB_CNTR_RESETM;
+
+ /* Set interrupt mask */
+ USBx->CNTR |= winterruptmask;
+
+ return HAL_OK;
+}
+
+/**
+ * @brief USB_DisableGlobalInt
+ * Disable the controller's Global Int in the AHB Config reg
+ * @param USBx : Selected device
+ * @retval HAL status
+*/
+HAL_StatusTypeDef USB_DisableGlobalInt(USB_TypeDef *USBx)
+{
+ uint32_t winterruptmask = 0;
+
+ /* Set winterruptmask variable */
+ winterruptmask = USB_CNTR_CTRM | USB_CNTR_WKUPM | USB_CNTR_SUSPM | USB_CNTR_ERRM \
+ | USB_CNTR_ESOFM | USB_CNTR_RESETM;
+
+ /* Clear interrupt mask */
+ USBx->CNTR &= ~winterruptmask;
+
+ return HAL_OK;
+}
+
+/**
+ * @brief USB_SetCurrentMode : Set functional mode
+ * @param USBx : Selected device
+ * @param mode : current core mode
+ * This parameter can be one of the these values:
+ * @arg USB_DEVICE_MODE: Peripheral mode mode
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_SetCurrentMode(USB_TypeDef *USBx , USB_ModeTypeDef mode)
+{
+ /* NOTE : - This function is not required by USB Device FS peripheral, it is used
+ only by USB OTG FS peripheral.
+ - This function is added to ensure compatibility across platforms.
+ */
+
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(USBx);
+ UNUSED(mode);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief USB_DevInit : Initializes the USB controller registers
+ * for device mode
+ * @param USBx : Selected device
+ * @param cfg : pointer to a USB_CfgTypeDef structure that contains
+ * the configuration information for the specified USBx peripheral.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_DevInit (USB_TypeDef *USBx, USB_CfgTypeDef cfg)
+{
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(cfg);
+
+ /* Init Device */
+ /*CNTR_FRES = 1*/
+ USBx->CNTR = USB_CNTR_FRES;
+
+ /*CNTR_FRES = 0*/
+ USBx->CNTR = 0;
+
+ /*Clear pending interrupts*/
+ USBx->ISTR = 0;
+
+ /*Set Btable Address*/
+ USBx->BTABLE = BTABLE_ADDRESS;
+
+ return HAL_OK;
+}
+
+/**
+ * @brief USB_FlushTxFifo : Flush a Tx FIFO
+ * @param USBx : Selected device
+ * @param num : FIFO number
+ * This parameter can be a value from 1 to 15
+ 15 means Flush all Tx FIFOs
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_FlushTxFifo (USB_TypeDef *USBx, uint32_t num )
+{
+ /* NOTE : - This function is not required by USB Device FS peripheral, it is used
+ only by USB OTG FS peripheral.
+ - This function is added to ensure compatibility across platforms.
+ */
+
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(USBx);
+ UNUSED(num);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief USB_FlushRxFifo : Flush Rx FIFO
+ * @param USBx : Selected device
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_FlushRxFifo(USB_TypeDef *USBx)
+{
+ /* NOTE : - This function is not required by USB Device FS peripheral, it is used
+ only by USB OTG FS peripheral.
+ - This function is added to ensure compatibility across platforms.
+ */
+
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(USBx);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Activate and configure an endpoint
+ * @param USBx : Selected device
+ * @param ep: pointer to endpoint structure
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_ActivateEndpoint(USB_TypeDef *USBx, USB_EPTypeDef *ep)
+{
+ /* initialize Endpoint */
+ switch (ep->type)
+ {
+ case EP_TYPE_CTRL:
+ PCD_SET_EPTYPE(USBx, ep->num, USB_EP_CONTROL);
+ break;
+ case EP_TYPE_BULK:
+ PCD_SET_EPTYPE(USBx, ep->num, USB_EP_BULK);
+ break;
+ case EP_TYPE_INTR:
+ PCD_SET_EPTYPE(USBx, ep->num, USB_EP_INTERRUPT);
+ break;
+ case EP_TYPE_ISOC:
+ PCD_SET_EPTYPE(USBx, ep->num, USB_EP_ISOCHRONOUS);
+ break;
+ default:
+ break;
+ }
+
+ PCD_SET_EP_ADDRESS(USBx, ep->num, ep->num);
+
+ if (ep->doublebuffer == 0)
+ {
+ if (ep->is_in)
+ {
+ /*Set the endpoint Transmit buffer address */
+ PCD_SET_EP_TX_ADDRESS(USBx, ep->num, ep->pmaadress);
+ PCD_CLEAR_TX_DTOG(USBx, ep->num);
+ /* Configure NAK status for the Endpoint*/
+ PCD_SET_EP_TX_STATUS(USBx, ep->num, USB_EP_TX_NAK);
+ }
+ else
+ {
+ /*Set the endpoint Receive buffer address */
+ PCD_SET_EP_RX_ADDRESS(USBx, ep->num, ep->pmaadress);
+ /*Set the endpoint Receive buffer counter*/
+ PCD_SET_EP_RX_CNT(USBx, ep->num, ep->maxpacket);
+ PCD_CLEAR_RX_DTOG(USBx, ep->num);
+ /* Configure VALID status for the Endpoint*/
+ PCD_SET_EP_RX_STATUS(USBx, ep->num, USB_EP_RX_VALID);
+ }
+ }
+ /*Double Buffer*/
+ else
+ {
+ /*Set the endpoint as double buffered*/
+ PCD_SET_EP_DBUF(USBx, ep->num);
+ /*Set buffer address for double buffered mode*/
+ PCD_SET_EP_DBUF_ADDR(USBx, 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(USBx, ep->num);
+ PCD_CLEAR_TX_DTOG(USBx, ep->num);
+
+ /* Reset value of the data toggle bits for the endpoint out*/
+ PCD_TX_DTOG(USBx, ep->num);
+
+ PCD_SET_EP_RX_STATUS(USBx, ep->num, USB_EP_RX_VALID);
+ PCD_SET_EP_TX_STATUS(USBx, ep->num, USB_EP_TX_DIS);
+ }
+ else
+ {
+ /* Clear the data toggle bits for the endpoint IN/OUT*/
+ PCD_CLEAR_RX_DTOG(USBx, ep->num);
+ PCD_CLEAR_TX_DTOG(USBx, ep->num);
+ PCD_RX_DTOG(USBx, ep->num);
+ /* Configure DISABLE status for the Endpoint*/
+ PCD_SET_EP_TX_STATUS(USBx, ep->num, USB_EP_TX_DIS);
+ PCD_SET_EP_RX_STATUS(USBx, ep->num, USB_EP_RX_DIS);
+ }
+ }
+
+ return HAL_OK;
+}
+
+/**
+ * @brief De-activate and de-initialize an endpoint
+ * @param USBx : Selected device
+ * @param ep: pointer to endpoint structure
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_DeactivateEndpoint(USB_TypeDef *USBx, USB_EPTypeDef *ep)
+{
+ if (ep->doublebuffer == 0)
+ {
+ if (ep->is_in)
+ {
+ PCD_CLEAR_TX_DTOG(USBx, ep->num);
+ /* Configure DISABLE status for the Endpoint*/
+ PCD_SET_EP_TX_STATUS(USBx, ep->num, USB_EP_TX_DIS);
+ }
+ else
+ {
+ PCD_CLEAR_RX_DTOG(USBx, ep->num);
+ /* Configure DISABLE status for the Endpoint*/
+ PCD_SET_EP_RX_STATUS(USBx, 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(USBx, ep->num);
+ PCD_CLEAR_TX_DTOG(USBx, ep->num);
+
+ /* Reset value of the data toggle bits for the endpoint out*/
+ PCD_TX_DTOG(USBx, ep->num);
+
+ PCD_SET_EP_RX_STATUS(USBx, ep->num, USB_EP_RX_DIS);
+ PCD_SET_EP_TX_STATUS(USBx, ep->num, USB_EP_TX_DIS);
+ }
+ else
+ {
+ /* Clear the data toggle bits for the endpoint IN/OUT*/
+ PCD_CLEAR_RX_DTOG(USBx, ep->num);
+ PCD_CLEAR_TX_DTOG(USBx, ep->num);
+ PCD_RX_DTOG(USBx, ep->num);
+ /* Configure DISABLE status for the Endpoint*/
+ PCD_SET_EP_TX_STATUS(USBx, ep->num, USB_EP_TX_DIS);
+ PCD_SET_EP_RX_STATUS(USBx, ep->num, USB_EP_RX_DIS);
+ }
+ }
+
+ return HAL_OK;
+}
+
+/**
+ * @brief USB_EPStartXfer : setup and starts a transfer over an EP
+ * @param USBx : Selected device
+ * @param ep: pointer to endpoint structure
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_EPStartXfer(USB_TypeDef *USBx , USB_EPTypeDef *ep, uint8_t dma)
+{
+ uint16_t pmabuffer = 0;
+ uint32_t len = ep->xfer_len;
+
+ /* IN endpoint */
+ if (ep->is_in == 1)
+ {
+ /*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)
+ {
+ USB_WritePMA(USBx, ep->xfer_buff, ep->pmaadress, len);
+ PCD_SET_EP_TX_CNT(USBx, ep->num, len);
+ }
+ else
+ {
+ /* Write the data to the USB endpoint */
+ if (PCD_GET_ENDPOINT(USBx, ep->num)& USB_EP_DTOG_TX)
+ {
+ /* Set the Double buffer counter for pmabuffer1 */
+ PCD_SET_EP_DBUF1_CNT(USBx, ep->num, ep->is_in, len);
+ pmabuffer = ep->pmaaddr1;
+ }
+ else
+ {
+ /* Set the Double buffer counter for pmabuffer0 */
+ PCD_SET_EP_DBUF0_CNT(USBx, ep->num, ep->is_in, len);
+ pmabuffer = ep->pmaaddr0;
+ }
+ USB_WritePMA(USBx, ep->xfer_buff, pmabuffer, len);
+ PCD_FreeUserBuffer(USBx, ep->num, ep->is_in);
+ }
+
+ PCD_SET_EP_TX_STATUS(USBx, ep->num, USB_EP_TX_VALID);
+ }
+ else /* OUT endpoint */
+ {
+ /* 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(USBx, ep->num, len);
+ }
+ else
+ {
+ /*Set the Double buffer counter*/
+ PCD_SET_EP_DBUF1_CNT(USBx, ep->num, ep->is_in, len);
+ }
+
+ PCD_SET_EP_RX_STATUS(USBx, ep->num, USB_EP_RX_VALID);
+ }
+
+ return HAL_OK;
+}
+
+/**
+ * @brief USB_WritePacket : Writes a packet into the Tx FIFO associated
+ * with the EP/channel
+ * @param USBx : Selected device
+ * @param src : pointer to source buffer
+ * @param ch_ep_num : endpoint or host channel number
+ * @param len : Number of bytes to write
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_WritePacket(USB_TypeDef *USBx, uint8_t *src, uint8_t ch_ep_num, uint16_t len)
+{
+ /* NOTE : - This function is not required by USB Device FS peripheral, it is used
+ only by USB OTG FS peripheral.
+ - This function is added to ensure compatibility across platforms.
+ */
+
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(USBx);
+ UNUSED(src);
+ UNUSED(ch_ep_num);
+ UNUSED(len);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief USB_ReadPacket : read a packet from the Tx FIFO associated
+ * with the EP/channel
+ * @param USBx : Selected device
+ * @param dest : destination pointer
+ * @param len : Number of bytes to read
+ * @retval pointer to destination buffer
+ */
+void *USB_ReadPacket(USB_TypeDef *USBx, uint8_t *dest, uint16_t len)
+{
+ /* NOTE : - This function is not required by USB Device FS peripheral, it is used
+ only by USB OTG FS peripheral.
+ - This function is added to ensure compatibility across platforms.
+ */
+
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(USBx);
+ UNUSED(dest);
+ UNUSED(len);
+
+ return ((void *)NULL);
+}
+
+/**
+ * @brief USB_EPSetStall : set a stall condition over an EP
+ * @param USBx : Selected device
+ * @param ep: pointer to endpoint structure
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_EPSetStall(USB_TypeDef *USBx , USB_EPTypeDef *ep)
+{
+ if (ep->num == 0)
+ {
+ /* This macro sets STALL status for RX & TX*/
+ PCD_SET_EP_TXRX_STATUS(USBx, ep->num, USB_EP_RX_STALL, USB_EP_TX_STALL);
+ }
+ else
+ {
+ if (ep->is_in)
+ {
+ PCD_SET_EP_TX_STATUS(USBx, ep->num , USB_EP_TX_STALL);
+ }
+ else
+ {
+ PCD_SET_EP_RX_STATUS(USBx, ep->num , USB_EP_RX_STALL);
+ }
+ }
+ return HAL_OK;
+}
+
+/**
+ * @brief USB_EPClearStall : Clear a stall condition over an EP
+ * @param USBx : Selected device
+ * @param ep: pointer to endpoint structure
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_EPClearStall(USB_TypeDef *USBx, USB_EPTypeDef *ep)
+{
+ if (ep->is_in)
+ {
+ PCD_CLEAR_TX_DTOG(USBx, ep->num);
+ PCD_SET_EP_TX_STATUS(USBx, ep->num, USB_EP_TX_VALID);
+ }
+ else
+ {
+ PCD_CLEAR_RX_DTOG(USBx, ep->num);
+ PCD_SET_EP_RX_STATUS(USBx, ep->num, USB_EP_RX_VALID);
+ }
+ return HAL_OK;
+}
+
+/**
+ * @brief USB_StopDevice : Stop the usb device mode
+ * @param USBx : Selected device
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_StopDevice(USB_TypeDef *USBx)
+{
+ /* disable all interrupts and force USB reset */
+ USBx->CNTR = USB_CNTR_FRES;
+
+ /* clear interrupt status register */
+ USBx->ISTR = 0;
+
+ /* switch-off device */
+ USBx->CNTR = (USB_CNTR_FRES | USB_CNTR_PDWN);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief USB_SetDevAddress : Stop the usb device mode
+ * @param USBx : Selected device
+ * @param address : new device address to be assigned
+ * This parameter can be a value from 0 to 255
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_SetDevAddress (USB_TypeDef *USBx, uint8_t address)
+{
+ if(address == 0)
+ {
+ /* set device address and enable function */
+ USBx->DADDR = USB_DADDR_EF;
+ }
+
+ return HAL_OK;
+}
+
+/**
+ * @brief USB_DevConnect : Connect the USB device by enabling the pull-up/pull-down
+ * @param USBx : Selected device
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_DevConnect (USB_TypeDef *USBx)
+{
+ /* Enabling DP Pull-Down bit to Connect internal pull-up on USB DP line */
+ USB->BCDR |= USB_BCDR_DPPU;
+
+ return HAL_OK;
+}
+
+/**
+ * @brief USB_DevDisconnect : Disconnect the USB device by disabling the pull-up/pull-down
+ * @param USBx : Selected device
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_DevDisconnect (USB_TypeDef *USBx)
+{
+ /* Disable DP Pull-Down bit*/
+ USB->BCDR &= ~(USB_BCDR_DPPU);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief USB_ReadInterrupts: return the global USB interrupt status
+ * @param USBx : Selected device
+ * @retval HAL status
+ */
+uint32_t USB_ReadInterrupts (USB_TypeDef *USBx)
+{
+ uint32_t tmpreg = 0;
+
+ tmpreg = USBx->ISTR;
+ return tmpreg;
+}
+
+/**
+ * @brief USB_ReadDevAllOutEpInterrupt: return the USB device OUT endpoints interrupt status
+ * @param USBx : Selected device
+ * @retval HAL status
+ */
+uint32_t USB_ReadDevAllOutEpInterrupt (USB_TypeDef *USBx)
+{
+ /* NOTE : - This function is not required by USB Device FS peripheral, it is used
+ only by USB OTG FS peripheral.
+ - This function is added to ensure compatibility across platforms.
+ */
+
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(USBx);
+
+ return (0);
+}
+
+/**
+ * @brief USB_ReadDevAllInEpInterrupt: return the USB device IN endpoints interrupt status
+ * @param USBx : Selected device
+ * @retval HAL status
+ */
+uint32_t USB_ReadDevAllInEpInterrupt (USB_TypeDef *USBx)
+{
+ /* NOTE : - This function is not required by USB Device FS peripheral, it is used
+ only by USB OTG FS peripheral.
+ - This function is added to ensure compatibility across platforms.
+ */
+
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(USBx);
+
+ return (0);
+}
+
+/**
+ * @brief Returns Device OUT EP Interrupt register
+ * @param USBx : Selected device
+ * @param epnum : endpoint number
+ * This parameter can be a value from 0 to 15
+ * @retval Device OUT EP Interrupt register
+ */
+uint32_t USB_ReadDevOutEPInterrupt (USB_TypeDef *USBx , uint8_t epnum)
+{
+ /* NOTE : - This function is not required by USB Device FS peripheral, it is used
+ only by USB OTG FS peripheral.
+ - This function is added to ensure compatibility across platforms.
+ */
+
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(USBx);
+ UNUSED(epnum);
+
+ return (0);
+}
+
+/**
+ * @brief Returns Device IN EP Interrupt register
+ * @param USBx : Selected device
+ * @param epnum : endpoint number
+ * This parameter can be a value from 0 to 15
+ * @retval Device IN EP Interrupt register
+ */
+uint32_t USB_ReadDevInEPInterrupt (USB_TypeDef *USBx , uint8_t epnum)
+{
+ /* NOTE : - This function is not required by USB Device FS peripheral, it is used
+ only by USB OTG FS peripheral.
+ - This function is added to ensure compatibility across platforms.
+ */
+
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(USBx);
+ UNUSED(epnum);
+
+ return (0);
+}
+
+/**
+ * @brief USB_ClearInterrupts: clear a USB interrupt
+ * @param USBx : Selected device
+ * @param interrupt : interrupt flag
+ * @retval None
+ */
+void USB_ClearInterrupts (USB_TypeDef *USBx, uint32_t interrupt)
+{
+ /* NOTE : - This function is not required by USB Device FS peripheral, it is used
+ only by USB OTG FS peripheral.
+ - This function is added to ensure compatibility across platforms.
+ */
+
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(USBx);
+ UNUSED(interrupt);
+}
+
+/**
+ * @brief Prepare the EP0 to start the first control setup
+ * @param USBx : Selected device
+ * @param psetup : pointer to setup packet
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_EP0_OutStart(USB_TypeDef *USBx, uint8_t dma ,uint8_t *psetup)
+{
+ /* NOTE : - This function is not required by USB Device FS peripheral, it is used
+ only by USB OTG FS peripheral.
+ - This function is added to ensure compatibility across platforms.
+ */
+
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(USBx);
+ UNUSED(psetup);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief USB_ActivateRemoteWakeup : active remote wakeup signalling
+ * @param USBx : Selected device
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_ActivateRemoteWakeup(USB_TypeDef *USBx)
+{
+ USBx->CNTR |= USB_CNTR_RESUME;
+
+ return HAL_OK;
+}
+
+/**
+ * @brief USB_DeActivateRemoteWakeup : de-active remote wakeup signalling
+ * @param USBx : Selected device
+ * @retval HAL status
+ */
+HAL_StatusTypeDef USB_DeActivateRemoteWakeup(USB_TypeDef *USBx)
+{
+ USBx->CNTR &= ~(USB_CNTR_RESUME);
+ return HAL_OK;
+}
+
+/**
+ * @brief Copy a buffer from user memory area to packet memory area (PMA)
+ * @param USBx : pointer to USB register.
+ * @param pbUsrBuf : pointer to user memory area.
+ * @param wPMABufAddr : address into PMA.
+ * @param wNBytes : number of bytes to be copied.
+ * @retval None
+ */
+void USB_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 USBx : pointer to USB register.
+* @param pbUsrBuf : pointer to user memory area.
+ * @param wPMABufAddr : address into PMA.
+ * @param wNBytes : number of bytes to be copied.
+ * @retval None
+ */
+void USB_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++;
+ }
+}
+#endif /* USB */
+/**
+ * @}
+ */
+/**
+ * @}
+ */
+
+#if defined (USB_OTG_FS)
+/** @addtogroup USB_LL_Private_Functions
+ * @{
+ */
+/**
+ * @brief Reset the USB Core (needed after USB clock settings change)
+ * @param USBx : Selected device
+ * @retval HAL status
+ */
+static HAL_StatusTypeDef USB_CoreReset(USB_OTG_GlobalTypeDef *USBx)
+{
+ uint32_t count = 0;
+
+ /* Wait for AHB master IDLE state. */
+ do
+ {
+ if (++count > 200000)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+ while ((USBx->GRSTCTL & USB_OTG_GRSTCTL_AHBIDL) == 0);
+
+ /* Core Soft Reset */
+ count = 0;
+ USBx->GRSTCTL |= USB_OTG_GRSTCTL_CSRST;
+
+ do
+ {
+ if (++count > 200000)
+ {
+ return HAL_TIMEOUT;
+ }
+ }
+ while ((USBx->GRSTCTL & USB_OTG_GRSTCTL_CSRST) == USB_OTG_GRSTCTL_CSRST);
+
+ return HAL_OK;
+}
+/**
+ * @}
+ */
+#endif /* USB_OTG_FS */
+
+#endif /* STM32L475xx || STM32L476xx || */
+ /* STM32L485xx || STM32L486xx || */
+ /* STM32L432xx || STM32L433xx || */
+ /* STM32L442xx || STM32L443xx */
+
+#endif /* defined (HAL_PCD_MODULE_ENABLED) || defined (HAL_HCD_MODULE_ENABLED) */
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/