diff options
Diffstat (limited to 'stmhal/usbhost/Core/Src/usbh_pipes.c')
| -rw-r--r-- | stmhal/usbhost/Core/Src/usbh_pipes.c | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/stmhal/usbhost/Core/Src/usbh_pipes.c b/stmhal/usbhost/Core/Src/usbh_pipes.c new file mode 100644 index 000000000..9dcc4c517 --- /dev/null +++ b/stmhal/usbhost/Core/Src/usbh_pipes.c @@ -0,0 +1,204 @@ +/**
+ ******************************************************************************
+ * @file usbh_pipes.c
+ * @author MCD Application Team
+ * @version V3.0.0
+ * @date 18-February-2014
+ * @brief This file implements functions for opening and closing Pipes
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© COPYRIGHT 2014 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 "usbh_pipes.h"
+
+/** @addtogroup USBH_LIB
+ * @{
+ */
+
+/** @addtogroup USBH_LIB_CORE
+* @{
+*/
+
+/** @defgroup USBH_PIPES
+ * @brief This file includes opening and closing Pipes
+ * @{
+ */
+
+/** @defgroup USBH_PIPES_Private_Defines
+ * @{
+ */
+/**
+ * @}
+ */
+
+/** @defgroup USBH_PIPES_Private_TypesDefinitions
+ * @{
+ */
+/**
+ * @}
+ */
+
+
+/** @defgroup USBH_PIPES_Private_Macros
+ * @{
+ */
+/**
+ * @}
+ */
+
+
+/** @defgroup USBH_PIPES_Private_Variables
+ * @{
+ */
+
+/**
+ * @}
+ */
+
+
+/** @defgroup USBH_PIPES_Private_Functions
+ * @{
+ */
+static uint16_t USBH_GetFreePipe (USBH_HandleTypeDef *phost);
+
+
+/**
+ * @brief USBH_Open_Pipe
+ * Open a pipe
+ * @param phost: Host Handle
+ * @param pipe_num: Pipe Number
+ * @param dev_address: USB Device address allocated to attached device
+ * @param speed : USB device speed (Full/Low)
+ * @param ep_type: end point type (Bulk/int/ctl)
+ * @param mps: max pkt size
+ * @retval USBH Status
+ */
+USBH_StatusTypeDef USBH_OpenPipe (USBH_HandleTypeDef *phost,
+ uint8_t pipe_num,
+ uint8_t epnum,
+ uint8_t dev_address,
+ uint8_t speed,
+ uint8_t ep_type,
+ uint16_t mps)
+{
+
+ USBH_LL_OpenPipe(phost,
+ pipe_num,
+ epnum,
+ dev_address,
+ speed,
+ ep_type,
+ mps);
+
+ return USBH_OK;
+
+}
+
+/**
+ * @brief USBH_ClosePipe
+ * Close a pipe
+ * @param phost: Host Handle
+ * @param pipe_num: Pipe Number
+ * @retval USBH Status
+ */
+USBH_StatusTypeDef USBH_ClosePipe (USBH_HandleTypeDef *phost,
+ uint8_t pipe_num)
+{
+
+ USBH_LL_ClosePipe(phost, pipe_num);
+
+ return USBH_OK;
+
+}
+
+/**
+ * @brief USBH_Alloc_Pipe
+ * Allocate a new Pipe
+ * @param phost: Host Handle
+ * @param ep_addr: End point for which the Pipe to be allocated
+ * @retval Pipe number
+ */
+uint8_t USBH_AllocPipe (USBH_HandleTypeDef *phost, uint8_t ep_addr)
+{
+ uint16_t pipe;
+
+ pipe = USBH_GetFreePipe(phost);
+
+ if (pipe != 0xFFFF)
+ {
+ phost->Pipes[pipe] = 0x8000 | ep_addr;
+ }
+ return pipe;
+}
+
+/**
+ * @brief USBH_Free_Pipe
+ * Free the USB Pipe
+ * @param phost: Host Handle
+ * @param idx: Pipe number to be freed
+ * @retval USBH Status
+ */
+USBH_StatusTypeDef USBH_FreePipe (USBH_HandleTypeDef *phost, uint8_t idx)
+{
+ if(idx < 11)
+ {
+ phost->Pipes[idx] &= 0x7FFF;
+ }
+ return USBH_OK;
+}
+
+/**
+ * @brief USBH_GetFreePipe
+ * @param phost: Host Handle
+ * Get a free Pipe number for allocation to a device endpoint
+ * @retval idx: Free Pipe number
+ */
+static uint16_t USBH_GetFreePipe (USBH_HandleTypeDef *phost)
+{
+ uint8_t idx = 0;
+
+ for (idx = 0 ; idx < 11 ; idx++)
+ {
+ if ((phost->Pipes[idx] & 0x8000) == 0)
+ {
+ return idx;
+ }
+ }
+ return 0xFFFF;
+}
+/**
+* @}
+*/
+
+/**
+* @}
+*/
+
+/**
+* @}
+*/
+
+/**
+* @}
+*/
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
+
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