diff options
Diffstat (limited to 'Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.c')
| -rw-r--r-- | Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.c | 1705 |
1 files changed, 1705 insertions, 0 deletions
diff --git a/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.c b/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.c new file mode 100644 index 0000000..2335ebf --- /dev/null +++ b/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_usb.c @@ -0,0 +1,1705 @@ +/**
+ ******************************************************************************
+ * @file stm32f4xx_ll_usb.c
+ * @author MCD Application Team
+ * @version V1.3.2
+ * @date 26-June-2015
+ * @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) 2015 STMicroelectronics</center></h2>
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. Neither the name of STMicroelectronics nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f4xx_hal.h"
+
+/** @addtogroup STM32F4xx_LL_USB_DRIVER
+ * @{
+ */
+
+#if defined (HAL_PCD_MODULE_ENABLED) || defined (HAL_HCD_MODULE_ENABLED)
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+/* Private functions ---------------------------------------------------------*/
+static HAL_StatusTypeDef USB_CoreReset(USB_OTG_GlobalTypeDef *USBx);
+
+/* 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
+ * @{
+ */
+
+/**
+ * @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)
+{
+ if (cfg.phy_itface == USB_OTG_ULPI_PHY)
+ {
+
+ USBx->GCCFG &= ~(USB_OTG_GCCFG_PWRDWN);
+
+ /* Init The ULPI Interface */
+ USBx->GUSBCFG &= ~(USB_OTG_GUSBCFG_TSDPS | USB_OTG_GUSBCFG_ULPIFSLS | USB_OTG_GUSBCFG_PHYSEL);
+
+ /* Select vbus source */
+ USBx->GUSBCFG &= ~(USB_OTG_GUSBCFG_ULPIEVBUSD | USB_OTG_GUSBCFG_ULPIEVBUSI);
+ if(cfg.use_external_vbus == 1)
+ {
+ USBx->GUSBCFG |= USB_OTG_GUSBCFG_ULPIEVBUSD;
+ }
+ /* Reset after a PHY select */
+ USB_CoreReset(USBx);
+ }
+ else /* FS interface (embedded Phy) */
+ {
+ /* 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;
+ }
+
+ if(cfg.dma_enable == ENABLE)
+ {
+ USBx->GAHBCFG |= (USB_OTG_GAHBCFG_HBSTLEN_1 | USB_OTG_GAHBCFG_HBSTLEN_2);
+ USBx->GAHBCFG |= USB_OTG_GAHBCFG_DMAEN;
+ }
+
+ 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_OTG_ModeTypeDef mode)
+{
+ USBx->GUSBCFG &= ~(USB_OTG_GUSBCFG_FHMOD | USB_OTG_GUSBCFG_FDMOD);
+
+ if ( mode == USB_OTG_HOST_MODE)
+ {
+ USBx->GUSBCFG |= USB_OTG_GUSBCFG_FHMOD;
+ }
+ else if ( mode == USB_OTG_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 i = 0;
+
+ /*Activate VBUS Sensing B */
+#if defined(STM32F446xx)
+ 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;
+ }
+#else
+ USBx->GCCFG |= USB_OTG_GCCFG_VBUSBSEN;
+
+ if (cfg.vbus_sensing_enable == 0)
+ {
+ USBx->GCCFG |= USB_OTG_GCCFG_NOVBUSSENS;
+ }
+#endif /* STM32F446xx */
+
+ /* Restart the Phy Clock */
+ USBx_PCGCCTL = 0;
+
+ /* Device mode configuration */
+ USBx_DEVICE->DCFG |= DCFG_FRAME_INTERVAL_80;
+
+ if(cfg.phy_itface == USB_OTG_ULPI_PHY)
+ {
+ if(cfg.speed == USB_OTG_SPEED_HIGH)
+ {
+ /* Set High speed phy */
+ USB_SetDevSpeed (USBx , USB_OTG_SPEED_HIGH);
+ }
+ else
+ {
+ /* set High speed phy in Full speed mode */
+ USB_SetDevSpeed (USBx , USB_OTG_SPEED_HIGH_IN_FULL);
+ }
+ }
+ else
+ {
+ /* 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 (i = 0; i < cfg.dev_endpoints; i++)
+ {
+ if ((USBx_INEP(i)->DIEPCTL & USB_OTG_DIEPCTL_EPENA) == USB_OTG_DIEPCTL_EPENA)
+ {
+ USBx_INEP(i)->DIEPCTL = (USB_OTG_DIEPCTL_EPDIS | USB_OTG_DIEPCTL_SNAK);
+ }
+ else
+ {
+ USBx_INEP(i)->DIEPCTL = 0;
+ }
+
+ USBx_INEP(i)->DIEPTSIZ = 0;
+ USBx_INEP(i)->DIEPINT = 0xFF;
+ }
+
+ for (i = 0; i < cfg.dev_endpoints; i++)
+ {
+ if ((USBx_OUTEP(i)->DOEPCTL & USB_OTG_DOEPCTL_EPENA) == USB_OTG_DOEPCTL_EPENA)
+ {
+ USBx_OUTEP(i)->DOEPCTL = (USB_OTG_DOEPCTL_EPDIS | USB_OTG_DOEPCTL_SNAK);
+ }
+ else
+ {
+ USBx_OUTEP(i)->DOEPCTL = 0;
+ }
+
+ USBx_OUTEP(i)->DOEPTSIZ = 0;
+ USBx_OUTEP(i)->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);
+
+ i= 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 (dma == 1)
+ {
+ USBx_INEP(ep->num)->DIEPDMA = (uint32_t)(ep->dma_addr);
+ }
+ else
+ {
+ if (ep->type != EP_TYPE_ISOC)
+ {
+ /* Enable the Tx FIFO Empty Interrupt for this EP */
+ if (ep->xfer_len > 0)
+ {
+ 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 (dma == 1)
+ {
+ USBx_OUTEP(ep->num)->DOEPDMA = (uint32_t)ep->xfer_buff;
+ }
+
+ 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);
+
+ }
+
+ if (dma == 1)
+ {
+ USBx_INEP(ep->num)->DIEPDMA = (uint32_t)(ep->dma_addr);
+ }
+ else
+ {
+ /* Enable the Tx FIFO Empty Interrupt for this EP */
+ if (ep->xfer_len > 0)
+ {
+ 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));
+
+
+ if (dma == 1)
+ {
+ USBx_OUTEP(ep->num)->DOEPDMA = (uint32_t)(ep->xfer_buff);
+ }
+
+ /* 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 , i= 0;
+
+ if (dma == 0)
+ {
+ count32b = (len + 3) / 4;
+ for (i = 0; i < count32b; i++, 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 i=0;
+ uint32_t count32b = (len + 3) / 4;
+
+ for ( i = 0; i < count32b; i++, 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 i;
+
+ /* Clear Pending interrupt */
+ for (i = 0; i < 15 ; i++)
+ {
+ USBx_INEP(i)->DIEPINT = 0xFF;
+ USBx_OUTEP(i)->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 v = 0;
+
+ v = USBx->GINTSTS;
+ v &= USBx->GINTMSK;
+ return v;
+}
+
+/**
+ * @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 v;
+ v = USBx_DEVICE->DAINT;
+ v &= USBx_DEVICE->DAINTMSK;
+ return ((v & 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 v;
+ v = USBx_DEVICE->DAINT;
+ v &= USBx_DEVICE->DAINTMSK;
+ return ((v & 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 v;
+ v = USBx_OUTEP(epnum)->DOEPINT;
+ v &= USBx_DEVICE->DOEPMSK;
+ return v;
+}
+
+/**
+ * @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 v, msk, emp;
+
+ msk = USBx_DEVICE->DIEPMSK;
+ emp = USBx_DEVICE->DIEPEMPMSK;
+ msk |= ((emp >> epnum) & 0x1) << 7;
+ v = USBx_INEP(epnum)->DIEPINT & msk;
+ return v;
+}
+
+/**
+ * @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)
+{
+ 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;
+
+ if (dma == 1)
+ {
+ USBx_OUTEP(0)->DOEPDMA = (uint32_t)psetup;
+ /* EP enable */
+ USBx_OUTEP(0)->DOEPCTL = 0x80008000;
+ }
+
+ return HAL_OK;
+}
+
+
+/**
+ * @brief Reset the USB Core (needed after USB clock settings change)
+ * @param USBx : Selected device
+ * @retval HAL status
+ */
+static HAL_StatusTypeDef USB_CoreReset(USB_OTG_GlobalTypeDef *USBx)
+{
+ uint32_t count = 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;
+}
+
+
+/**
+ * @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 i;
+
+ /* Restart the Phy Clock */
+ USBx_PCGCCTL = 0;
+
+ /* Activate VBUS Sensing B */
+#if defined(STM32F446xx)
+ USBx->GCCFG |= USB_OTG_GCCFG_VBDEN;
+#else
+ USBx->GCCFG &=~ (USB_OTG_GCCFG_VBUSASEN);
+ USBx->GCCFG &=~ (USB_OTG_GCCFG_VBUSBSEN);
+ USBx->GCCFG |= USB_OTG_GCCFG_NOVBUSSENS;
+#endif /* STM32F446xx */
+
+ /* 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 (i = 0; i < cfg.Host_channels; i++)
+ {
+ USBx_HC(i)->HCINT = 0xFFFFFFFF;
+ USBx_HC(i)->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;
+
+ if(USBx == USB_OTG_FS)
+ {
+ /* 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);
+ }
+ else
+ {
+ /* set Rx FIFO size */
+ USBx->GRXFSIZ = (uint32_t )0x200;
+ USBx->DIEPTXF0_HNPTXFSIZ = (uint32_t )(((0x100 << 16)& USB_OTG_NPTXFD) | 0x200);
+ USBx->HPTXFSIZ = (uint32_t )(((0xE0 << 16)& USB_OTG_HPTXFSIZ_PTXFD) | 0x300);
+ }
+
+ /* 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;
+
+ 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;
+
+ 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;
+
+ 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;
+ }
+ else
+ {
+ if(USBx != USB_OTG_FS)
+ {
+ USBx_HC(ch_num)->HCINTMSK |= (USB_OTG_HCINTMSK_NYET | USB_OTG_HCINTMSK_ACKM);
+ }
+ }
+ 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;
+
+ if((USBx != USB_OTG_FS) && (hc->speed == USB_OTG_SPEED_HIGH))
+ {
+ if((dma == 0) && (hc->do_ping == 1))
+ {
+ USB_DoPing(USBx, hc->ch_num);
+ return HAL_OK;
+ }
+ else if(dma == 1)
+ {
+ USBx_HC(hc->ch_num)->HCINTMSK &= ~(USB_OTG_HCINTMSK_NYET | USB_OTG_HCINTMSK_ACKM);
+ hc->do_ping = 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);
+ }
+ }
+
+ 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 i;
+ uint32_t count = 0;
+ uint32_t value;
+
+ USB_DisableGlobalInt(USBx);
+
+ /* Flush FIFO */
+ USB_FlushTxFifo(USBx, 0x10);
+ USB_FlushRxFifo(USBx);
+
+ /* Flush out any leftover queued requests. */
+ for (i = 0; i <= 15; i++)
+ {
+
+ value = USBx_HC(i)->HCCHAR ;
+ value |= USB_OTG_HCCHAR_CHDIS;
+ value &= ~USB_OTG_HCCHAR_CHENA;
+ value &= ~USB_OTG_HCCHAR_EPDIR;
+ USBx_HC(i)->HCCHAR = value;
+ }
+
+ /* Halt all channels to put them into a known state. */
+ for (i = 0; i <= 15; i++)
+ {
+ value = USBx_HC(i)->HCCHAR ;
+
+ value |= USB_OTG_HCCHAR_CHDIS;
+ value |= USB_OTG_HCCHAR_CHENA;
+ value &= ~USB_OTG_HCCHAR_EPDIR;
+
+ USBx_HC(i)->HCCHAR = value;
+ do
+ {
+ if (++count > 1000)
+ {
+ break;
+ }
+ }
+ while ((USBx_HC(i)->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;
+}
+/**
+ * @}
+ */
+
+#endif /* defined (HAL_PCD_MODULE_ENABLED) || defined (HAL_HCD_MODULE_ENABLED) */
+
+/**
+ * @}
+ */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|