diff options
| author | Damien | 2013-10-13 00:42:20 +0100 |
|---|---|---|
| committer | Damien | 2013-10-13 00:42:20 +0100 |
| commit | ed65605edc5c1376947a34723b9c750400b5a028 (patch) | |
| tree | d0317e867c4286ec7c889fc9ed18591a1d9990dd /stm/lib/usb_dcd.c | |
| parent | 3ef4abb446dfcbdbc426a0921a33e0883607e677 (diff) | |
Inital commit of stm32f4xx framework.
Diffstat (limited to 'stm/lib/usb_dcd.c')
| -rw-r--r-- | stm/lib/usb_dcd.c | 478 |
1 files changed, 478 insertions, 0 deletions
diff --git a/stm/lib/usb_dcd.c b/stm/lib/usb_dcd.c new file mode 100644 index 000000000..eac8c3371 --- /dev/null +++ b/stm/lib/usb_dcd.c @@ -0,0 +1,478 @@ +/**
+ ******************************************************************************
+ * @file usb_dcd.c
+ * @author MCD Application Team
+ * @version V2.1.0
+ * @date 19-March-2012
+ * @brief Peripheral Device Interface Layer
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© COPYRIGHT 2012 STMicroelectronics</center></h2>
+ *
+ * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+ * You may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.st.com/software_license_agreement_liberty_v2
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ ******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include "usb_dcd.h"
+#include "usb_bsp.h"
+
+
+/** @addtogroup USB_OTG_DRIVER
+* @{
+*/
+
+/** @defgroup USB_DCD
+* @brief This file is the interface between EFSL ans Host mass-storage class
+* @{
+*/
+
+
+/** @defgroup USB_DCD_Private_Defines
+* @{
+*/
+/**
+* @}
+*/
+
+
+/** @defgroup USB_DCD_Private_TypesDefinitions
+* @{
+*/
+/**
+* @}
+*/
+
+
+
+/** @defgroup USB_DCD_Private_Macros
+* @{
+*/
+/**
+* @}
+*/
+
+
+/** @defgroup USB_DCD_Private_Variables
+* @{
+*/
+/**
+* @}
+*/
+
+
+/** @defgroup USB_DCD_Private_FunctionPrototypes
+* @{
+*/
+
+/**
+* @}
+*/
+
+
+/** @defgroup USB_DCD_Private_Functions
+* @{
+*/
+
+
+
+void DCD_Init(USB_OTG_CORE_HANDLE *pdev ,
+ USB_OTG_CORE_ID_TypeDef coreID)
+{
+ uint32_t i;
+ USB_OTG_EP *ep;
+
+ USB_OTG_SelectCore (pdev , coreID);
+
+ pdev->dev.device_status = USB_OTG_DEFAULT;
+ pdev->dev.device_address = 0;
+
+ /* Init ep structure */
+ for (i = 0; i < pdev->cfg.dev_endpoints ; i++)
+ {
+ ep = &pdev->dev.in_ep[i];
+ /* Init ep structure */
+ ep->is_in = 1;
+ ep->num = i;
+ ep->tx_fifo_num = i;
+ /* Control until ep is actvated */
+ ep->type = EP_TYPE_CTRL;
+ ep->maxpacket = USB_OTG_MAX_EP0_SIZE;
+ ep->xfer_buff = 0;
+ ep->xfer_len = 0;
+ }
+
+ for (i = 0; i < pdev->cfg.dev_endpoints; i++)
+ {
+ ep = &pdev->dev.out_ep[i];
+ /* Init ep structure */
+ ep->is_in = 0;
+ ep->num = i;
+ ep->tx_fifo_num = i;
+ /* Control until ep is activated */
+ ep->type = EP_TYPE_CTRL;
+ ep->maxpacket = USB_OTG_MAX_EP0_SIZE;
+ ep->xfer_buff = 0;
+ ep->xfer_len = 0;
+ }
+
+ USB_OTG_DisableGlobalInt(pdev);
+
+ /*Init the Core (common init.) */
+ USB_OTG_CoreInit(pdev);
+
+
+ /* Force Device Mode*/
+ USB_OTG_SetCurrentMode(pdev, DEVICE_MODE);
+
+ /* Init Device */
+ USB_OTG_CoreInitDev(pdev);
+
+
+ /* Enable USB Global interrupt */
+ USB_OTG_EnableGlobalInt(pdev);
+}
+
+
+/**
+* @brief Configure an EP
+* @param pdev : Device instance
+* @param epdesc : Endpoint Descriptor
+* @retval : status
+*/
+uint32_t DCD_EP_Open(USB_OTG_CORE_HANDLE *pdev ,
+ uint8_t ep_addr,
+ uint16_t ep_mps,
+ uint8_t ep_type)
+{
+ USB_OTG_EP *ep;
+
+ if ((ep_addr & 0x80) == 0x80)
+ {
+ ep = &pdev->dev.in_ep[ep_addr & 0x7F];
+ }
+ else
+ {
+ ep = &pdev->dev.out_ep[ep_addr & 0x7F];
+ }
+ ep->num = ep_addr & 0x7F;
+
+ ep->is_in = (0x80 & ep_addr) != 0;
+ ep->maxpacket = ep_mps;
+ ep->type = ep_type;
+ if (ep->is_in)
+ {
+ /* Assign a Tx FIFO */
+ ep->tx_fifo_num = ep->num;
+ }
+ /* Set initial data PID. */
+ if (ep_type == USB_OTG_EP_BULK )
+ {
+ ep->data_pid_start = 0;
+ }
+ USB_OTG_EPActivate(pdev , ep );
+ return 0;
+}
+/**
+* @brief called when an EP is disabled
+* @param pdev: device instance
+* @param ep_addr: endpoint address
+* @retval : status
+*/
+uint32_t DCD_EP_Close(USB_OTG_CORE_HANDLE *pdev , uint8_t ep_addr)
+{
+ USB_OTG_EP *ep;
+
+ if ((ep_addr&0x80) == 0x80)
+ {
+ ep = &pdev->dev.in_ep[ep_addr & 0x7F];
+ }
+ else
+ {
+ ep = &pdev->dev.out_ep[ep_addr & 0x7F];
+ }
+ ep->num = ep_addr & 0x7F;
+ ep->is_in = (0x80 & ep_addr) != 0;
+ USB_OTG_EPDeactivate(pdev , ep );
+ return 0;
+}
+
+
+/**
+* @brief DCD_EP_PrepareRx
+* @param pdev: device instance
+* @param ep_addr: endpoint address
+* @param pbuf: pointer to Rx buffer
+* @param buf_len: data length
+* @retval : status
+*/
+uint32_t DCD_EP_PrepareRx( USB_OTG_CORE_HANDLE *pdev,
+ uint8_t ep_addr,
+ uint8_t *pbuf,
+ uint16_t buf_len)
+{
+ USB_OTG_EP *ep;
+
+ ep = &pdev->dev.out_ep[ep_addr & 0x7F];
+
+ /*setup and start the Xfer */
+ ep->xfer_buff = pbuf;
+ ep->xfer_len = buf_len;
+ ep->xfer_count = 0;
+ ep->is_in = 0;
+ ep->num = ep_addr & 0x7F;
+
+ if (pdev->cfg.dma_enable == 1)
+ {
+ ep->dma_addr = (uint32_t)pbuf;
+ }
+
+ if ( ep->num == 0 )
+ {
+ USB_OTG_EP0StartXfer(pdev , ep);
+ }
+ else
+ {
+ USB_OTG_EPStartXfer(pdev, ep );
+ }
+ return 0;
+}
+
+/**
+* @brief Transmit data over USB
+* @param pdev: device instance
+* @param ep_addr: endpoint address
+* @param pbuf: pointer to Tx buffer
+* @param buf_len: data length
+* @retval : status
+*/
+uint32_t DCD_EP_Tx ( USB_OTG_CORE_HANDLE *pdev,
+ uint8_t ep_addr,
+ uint8_t *pbuf,
+ uint32_t buf_len)
+{
+ USB_OTG_EP *ep;
+
+ ep = &pdev->dev.in_ep[ep_addr & 0x7F];
+
+ /* Setup and start the Transfer */
+ ep->is_in = 1;
+ ep->num = ep_addr & 0x7F;
+ ep->xfer_buff = pbuf;
+ ep->dma_addr = (uint32_t)pbuf;
+ ep->xfer_count = 0;
+ ep->xfer_len = buf_len;
+
+ if ( ep->num == 0 )
+ {
+ USB_OTG_EP0StartXfer(pdev , ep);
+ }
+ else
+ {
+ USB_OTG_EPStartXfer(pdev, ep );
+ }
+ return 0;
+}
+
+
+/**
+* @brief Stall an endpoint.
+* @param pdev: device instance
+* @param epnum: endpoint address
+* @retval : status
+*/
+uint32_t DCD_EP_Stall (USB_OTG_CORE_HANDLE *pdev, uint8_t epnum)
+{
+ USB_OTG_EP *ep;
+ if ((0x80 & epnum) == 0x80)
+ {
+ ep = &pdev->dev.in_ep[epnum & 0x7F];
+ }
+ else
+ {
+ ep = &pdev->dev.out_ep[epnum];
+ }
+
+ ep->is_stall = 1;
+ ep->num = epnum & 0x7F;
+ ep->is_in = ((epnum & 0x80) == 0x80);
+
+ USB_OTG_EPSetStall(pdev , ep);
+ return (0);
+}
+
+
+/**
+* @brief Clear stall condition on endpoints.
+* @param pdev: device instance
+* @param epnum: endpoint address
+* @retval : status
+*/
+uint32_t DCD_EP_ClrStall (USB_OTG_CORE_HANDLE *pdev, uint8_t epnum)
+{
+ USB_OTG_EP *ep;
+ if ((0x80 & epnum) == 0x80)
+ {
+ ep = &pdev->dev.in_ep[epnum & 0x7F];
+ }
+ else
+ {
+ ep = &pdev->dev.out_ep[epnum];
+ }
+
+ ep->is_stall = 0;
+ ep->num = epnum & 0x7F;
+ ep->is_in = ((epnum & 0x80) == 0x80);
+
+ USB_OTG_EPClearStall(pdev , ep);
+ return (0);
+}
+
+
+/**
+* @brief This Function flushes the FIFOs.
+* @param pdev: device instance
+* @param epnum: endpoint address
+* @retval : status
+*/
+uint32_t DCD_EP_Flush (USB_OTG_CORE_HANDLE *pdev , uint8_t epnum)
+{
+
+ if ((epnum & 0x80) == 0x80)
+ {
+ USB_OTG_FlushTxFifo(pdev, epnum & 0x7F);
+ }
+ else
+ {
+ USB_OTG_FlushRxFifo(pdev);
+ }
+
+ return (0);
+}
+
+
+/**
+* @brief This Function set USB device address
+* @param pdev: device instance
+* @param address: new device address
+* @retval : status
+*/
+void DCD_EP_SetAddress (USB_OTG_CORE_HANDLE *pdev, uint8_t address)
+{
+ USB_OTG_DCFG_TypeDef dcfg;
+ dcfg.d32 = 0;
+ dcfg.b.devaddr = address;
+ USB_OTG_MODIFY_REG32( &pdev->regs.DREGS->DCFG, 0, dcfg.d32);
+}
+
+/**
+* @brief Connect device (enable internal pull-up)
+* @param pdev: device instance
+* @retval : None
+*/
+void DCD_DevConnect (USB_OTG_CORE_HANDLE *pdev)
+{
+#ifndef USE_OTG_MODE
+ USB_OTG_DCTL_TypeDef dctl;
+ dctl.d32 = USB_OTG_READ_REG32(&pdev->regs.DREGS->DCTL);
+ /* Connect device */
+ dctl.b.sftdiscon = 0;
+ USB_OTG_WRITE_REG32(&pdev->regs.DREGS->DCTL, dctl.d32);
+ USB_OTG_BSP_mDelay(3);
+#endif
+}
+
+
+/**
+* @brief Disconnect device (disable internal pull-up)
+* @param pdev: device instance
+* @retval : None
+*/
+void DCD_DevDisconnect (USB_OTG_CORE_HANDLE *pdev)
+{
+#ifndef USE_OTG_MODE
+ USB_OTG_DCTL_TypeDef dctl;
+ dctl.d32 = USB_OTG_READ_REG32(&pdev->regs.DREGS->DCTL);
+ /* Disconnect device for 3ms */
+ dctl.b.sftdiscon = 1;
+ USB_OTG_WRITE_REG32(&pdev->regs.DREGS->DCTL, dctl.d32);
+ USB_OTG_BSP_mDelay(3);
+#endif
+}
+
+
+/**
+* @brief returns the EP Status
+* @param pdev : Selected device
+* epnum : endpoint address
+* @retval : EP status
+*/
+
+uint32_t DCD_GetEPStatus(USB_OTG_CORE_HANDLE *pdev ,uint8_t epnum)
+{
+ USB_OTG_EP *ep;
+ uint32_t Status = 0;
+
+ if ((0x80 & epnum) == 0x80)
+ {
+ ep = &pdev->dev.in_ep[epnum & 0x7F];
+ }
+ else
+ {
+ ep = &pdev->dev.out_ep[epnum];
+ }
+
+ Status = USB_OTG_GetEPStatus(pdev ,ep);
+
+ /* Return the current status */
+ return Status;
+}
+
+/**
+* @brief Set the EP Status
+* @param pdev : Selected device
+* Status : new Status
+* epnum : EP address
+* @retval : None
+*/
+void DCD_SetEPStatus (USB_OTG_CORE_HANDLE *pdev , uint8_t epnum , uint32_t Status)
+{
+ USB_OTG_EP *ep;
+
+ if ((0x80 & epnum) == 0x80)
+ {
+ ep = &pdev->dev.in_ep[epnum & 0x7F];
+ }
+ else
+ {
+ ep = &pdev->dev.out_ep[epnum];
+ }
+
+ USB_OTG_SetEPStatus(pdev ,ep , Status);
+}
+
+/**
+* @}
+*/
+
+/**
+* @}
+*/
+
+/**
+* @}
+*/
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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