--- /dev/null
+/**
+ ******************************************************************************
+ * @file usbh_ioreq.c
+ * @author MCD Application Team
+ * @version V2.0.0
+ * @date 22-July-2011
+ * @brief This file handles the issuing of the USB transactions
+ ******************************************************************************
+ * @attention
+ *
+ * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
+ * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
+ * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
+ * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
+ * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
+ * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
+ *
+ * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2>
+ ******************************************************************************
+ */
+/* Includes ------------------------------------------------------------------*/
+
+#include "usbh_ioreq.h"
+
+/** @addtogroup USBH_LIB
+ * @{
+ */
+
+/** @addtogroup USBH_LIB_CORE
+* @{
+*/
+
+/** @defgroup USBH_IOREQ
+ * @brief This file handles the standard protocol processing (USB v2.0)
+ * @{
+ */
+
+
+/** @defgroup USBH_IOREQ_Private_Defines
+ * @{
+ */
+/**
+ * @}
+ */
+
+
+/** @defgroup USBH_IOREQ_Private_TypesDefinitions
+ * @{
+ */
+/**
+ * @}
+ */
+
+
+
+/** @defgroup USBH_IOREQ_Private_Macros
+ * @{
+ */
+/**
+ * @}
+ */
+
+
+/** @defgroup USBH_IOREQ_Private_Variables
+ * @{
+ */
+/**
+ * @}
+ */
+
+
+/** @defgroup USBH_IOREQ_Private_FunctionPrototypes
+ * @{
+ */
+static USBH_Status USBH_SubmitSetupRequest(USBH_HOST *phost,
+ uint8_t* buff,
+ uint16_t length);
+
+/**
+ * @}
+ */
+
+
+/** @defgroup USBH_IOREQ_Private_Functions
+ * @{
+ */
+
+
+/**
+ * @brief USBH_CtlReq
+ * USBH_CtlReq sends a control request and provide the status after
+ * completion of the request
+ * @param pdev: Selected device
+ * @param req: Setup Request Structure
+ * @param buff: data buffer address to store the response
+ * @param length: length of the response
+ * @retval Status
+ */
+USBH_Status USBH_CtlReq (USB_OTG_CORE_HANDLE *pdev,
+ USBH_HOST *phost,
+ uint8_t *buff,
+ uint16_t length)
+{
+ USBH_Status status;
+ URB_STATE URB_Status = URB_IDLE;
+
+ URB_Status = HCD_GetURB_State(pdev, phost->Control.hc_num_out);
+
+ status = USBH_BUSY;
+
+ switch (phost->RequestState)
+ {
+ case CMD_SEND:
+ /* Start a SETUP transfer */
+ USBH_SubmitSetupRequest(phost, buff, length);
+ phost->RequestState = CMD_WAIT;
+ status = USBH_BUSY;
+ break;
+
+ case CMD_WAIT:
+ if (URB_Status == URB_DONE)
+ {
+ /* Commands successfully sent and Response Received */
+ phost->RequestState = CMD_SEND;
+ status = USBH_OK;
+ }
+ else if (URB_Status == URB_ERROR)
+ {
+ /* Failure Mode */
+ phost->RequestState = CMD_SEND;
+ status = USBH_FAIL;
+ }
+ else if (URB_Status == URB_STALL)
+ {
+ /* Commands successfully sent and Response Received */
+ phost->RequestState = CMD_SEND;
+ status = USBH_NOT_SUPPORTED;
+ }
+ break;
+
+ default:
+ break;
+ }
+ return status;
+}
+
+/**
+ * @brief USBH_CtlSendSetup
+ * Sends the Setup Packet to the Device
+ * @param pdev: Selected device
+ * @param buff: Buffer pointer from which the Data will be send to Device
+ * @param hc_num: Host channel Number
+ * @retval Status
+ */
+USBH_Status USBH_CtlSendSetup ( USB_OTG_CORE_HANDLE *pdev,
+ uint8_t *buff,
+ uint8_t hc_num){
+ pdev->host.hc[hc_num].ep_is_in = 0;
+ pdev->host.hc[hc_num].data_pid = HC_PID_SETUP;
+ pdev->host.hc[hc_num].xfer_buff = buff;
+ pdev->host.hc[hc_num].xfer_len = USBH_SETUP_PKT_SIZE;
+
+ return (USBH_Status)HCD_SubmitRequest (pdev , hc_num);
+}
+
+
+/**
+ * @brief USBH_CtlSendData
+ * Sends a data Packet to the Device
+ * @param pdev: Selected device
+ * @param buff: Buffer pointer from which the Data will be sent to Device
+ * @param length: Length of the data to be sent
+ * @param hc_num: Host channel Number
+ * @retval Status
+ */
+USBH_Status USBH_CtlSendData ( USB_OTG_CORE_HANDLE *pdev,
+ uint8_t *buff,
+ uint8_t length,
+ uint8_t hc_num)
+{
+ pdev->host.hc[hc_num].ep_is_in = 0;
+ pdev->host.hc[hc_num].xfer_buff = buff;
+ pdev->host.hc[hc_num].xfer_len = length;
+
+ if ( length == 0 )
+ { /* For Status OUT stage, Length==0, Status Out PID = 1 */
+ pdev->host.hc[hc_num].toggle_out = 1;
+ }
+
+ /* Set the Data Toggle bit as per the Flag */
+ if ( pdev->host.hc[hc_num].toggle_out == 0)
+ { /* Put the PID 0 */
+ pdev->host.hc[hc_num].data_pid = HC_PID_DATA0;
+ }
+ else
+ { /* Put the PID 1 */
+ pdev->host.hc[hc_num].data_pid = HC_PID_DATA1 ;
+ }
+
+ HCD_SubmitRequest (pdev , hc_num);
+
+ return USBH_OK;
+}
+
+
+/**
+ * @brief USBH_CtlReceiveData
+ * Receives the Device Response to the Setup Packet
+ * @param pdev: Selected device
+ * @param buff: Buffer pointer in which the response needs to be copied
+ * @param length: Length of the data to be received
+ * @param hc_num: Host channel Number
+ * @retval Status.
+ */
+USBH_Status USBH_CtlReceiveData(USB_OTG_CORE_HANDLE *pdev,
+ uint8_t* buff,
+ uint8_t length,
+ uint8_t hc_num)
+{
+
+ pdev->host.hc[hc_num].ep_is_in = 1;
+ pdev->host.hc[hc_num].data_pid = HC_PID_DATA1;
+ pdev->host.hc[hc_num].xfer_buff = buff;
+ pdev->host.hc[hc_num].xfer_len = length;
+
+ HCD_SubmitRequest (pdev , hc_num);
+
+ return USBH_OK;
+
+}
+
+
+/**
+ * @brief USBH_BulkSendData
+ * Sends the Bulk Packet to the device
+ * @param pdev: Selected device
+ * @param buff: Buffer pointer from which the Data will be sent to Device
+ * @param length: Length of the data to be sent
+ * @param hc_num: Host channel Number
+ * @retval Status
+ */
+USBH_Status USBH_BulkSendData ( USB_OTG_CORE_HANDLE *pdev,
+ uint8_t *buff,
+ uint16_t length,
+ uint8_t hc_num)
+{
+ pdev->host.hc[hc_num].ep_is_in = 0;
+ pdev->host.hc[hc_num].xfer_buff = buff;
+ pdev->host.hc[hc_num].xfer_len = length;
+
+ /* Set the Data Toggle bit as per the Flag */
+ if ( pdev->host.hc[hc_num].toggle_out == 0)
+ { /* Put the PID 0 */
+ pdev->host.hc[hc_num].data_pid = HC_PID_DATA0;
+ }
+ else
+ { /* Put the PID 1 */
+ pdev->host.hc[hc_num].data_pid = HC_PID_DATA1 ;
+ }
+
+ HCD_SubmitRequest (pdev , hc_num);
+ return USBH_OK;
+}
+
+
+/**
+ * @brief USBH_BulkReceiveData
+ * Receives IN bulk packet from device
+ * @param pdev: Selected device
+ * @param buff: Buffer pointer in which the received data packet to be copied
+ * @param length: Length of the data to be received
+ * @param hc_num: Host channel Number
+ * @retval Status.
+ */
+USBH_Status USBH_BulkReceiveData( USB_OTG_CORE_HANDLE *pdev,
+ uint8_t *buff,
+ uint16_t length,
+ uint8_t hc_num)
+{
+ pdev->host.hc[hc_num].ep_is_in = 1;
+ pdev->host.hc[hc_num].xfer_buff = buff;
+ pdev->host.hc[hc_num].xfer_len = length;
+
+
+ if( pdev->host.hc[hc_num].toggle_in == 0)
+ {
+ pdev->host.hc[hc_num].data_pid = HC_PID_DATA0;
+ }
+ else
+ {
+ pdev->host.hc[hc_num].data_pid = HC_PID_DATA1;
+ }
+
+ HCD_SubmitRequest (pdev , hc_num);
+ return USBH_OK;
+}
+
+
+/**
+ * @brief USBH_InterruptReceiveData
+ * Receives the Device Response to the Interrupt IN token
+ * @param pdev: Selected device
+ * @param buff: Buffer pointer in which the response needs to be copied
+ * @param length: Length of the data to be received
+ * @param hc_num: Host channel Number
+ * @retval Status.
+ */
+USBH_Status USBH_InterruptReceiveData( USB_OTG_CORE_HANDLE *pdev,
+ uint8_t *buff,
+ uint8_t length,
+ uint8_t hc_num)
+{
+
+ pdev->host.hc[hc_num].ep_is_in = 1;
+ pdev->host.hc[hc_num].xfer_buff = buff;
+ pdev->host.hc[hc_num].xfer_len = length;
+
+
+
+ if(pdev->host.hc[hc_num].toggle_in == 0)
+ {
+ pdev->host.hc[hc_num].data_pid = HC_PID_DATA0;
+ }
+ else
+ {
+ pdev->host.hc[hc_num].data_pid = HC_PID_DATA1;
+ }
+
+ /* toggle DATA PID */
+ pdev->host.hc[hc_num].toggle_in ^= 1;
+
+ HCD_SubmitRequest (pdev , hc_num);
+
+ return USBH_OK;
+}
+
+/**
+ * @brief USBH_InterruptSendData
+ * Sends the data on Interrupt OUT Endpoint
+ * @param pdev: Selected device
+ * @param buff: Buffer pointer from where the data needs to be copied
+ * @param length: Length of the data to be sent
+ * @param hc_num: Host channel Number
+ * @retval Status.
+ */
+USBH_Status USBH_InterruptSendData( USB_OTG_CORE_HANDLE *pdev,
+ uint8_t *buff,
+ uint8_t length,
+ uint8_t hc_num)
+{
+
+ pdev->host.hc[hc_num].ep_is_in = 0;
+ pdev->host.hc[hc_num].xfer_buff = buff;
+ pdev->host.hc[hc_num].xfer_len = length;
+
+ if(pdev->host.hc[hc_num].toggle_in == 0)
+ {
+ pdev->host.hc[hc_num].data_pid = HC_PID_DATA0;
+ }
+ else
+ {
+ pdev->host.hc[hc_num].data_pid = HC_PID_DATA1;
+ }
+
+ pdev->host.hc[hc_num].toggle_in ^= 1;
+
+ HCD_SubmitRequest (pdev , hc_num);
+
+ return USBH_OK;
+}
+
+
+/**
+ * @brief USBH_SubmitSetupRequest
+ * Start a setup transfer by changing the state-machine and
+ * initializing the required variables needed for the Control Transfer
+ * @param pdev: Selected device
+ * @param setup: Setup Request Structure
+ * @param buff: Buffer used for setup request
+ * @param length: Length of the data
+ * @retval Status.
+*/
+static USBH_Status USBH_SubmitSetupRequest(USBH_HOST *phost,
+ uint8_t* buff,
+ uint16_t length)
+{
+
+ /* Save Global State */
+ phost->gStateBkp = phost->gState;
+
+ /* Prepare the Transactions */
+ phost->gState = HOST_CTRL_XFER;
+ phost->Control.buff = buff;
+ phost->Control.length = length;
+ phost->Control.state = CTRL_SETUP;
+
+ return USBH_OK;
+}
+
+/**
+* @}
+*/
+
+/**
+* @}
+*/
+
+/**
+* @}
+*/
+
+/**
+* @}
+*/
+
+/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/
+
+
+
projects / fw / stlink / blobdiff