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Diffstat (limited to 'usb_1.1.0/host/class/usb_host_cdc.c')
-rw-r--r--usb_1.1.0/host/class/usb_host_cdc.c1200
1 files changed, 1200 insertions, 0 deletions
diff --git a/usb_1.1.0/host/class/usb_host_cdc.c b/usb_1.1.0/host/class/usb_host_cdc.c
new file mode 100644
index 0000000..378e07f
--- /dev/null
+++ b/usb_1.1.0/host/class/usb_host_cdc.c
@@ -0,0 +1,1200 @@
+/*
+ * Copyright (c) 2015 - 2016, Freescale Semiconductor, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * o Redistributions of source code must retain the above copyright notice, this list
+ * of conditions and the following disclaimer.
+ *
+ * o 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.
+ *
+ * o Neither the name of Freescale Semiconductor, Inc. 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.
+ */
+
+#include "usb_host_config.h"
+#if ((defined USB_HOST_CONFIG_CDC) && (USB_HOST_CONFIG_CDC))
+#include "usb_host.h"
+#include "usb_host_cdc.h"
+#include "usb_host_devices.h"
+
+#if ((defined USB_HOST_CONFIG_CLASS_AUTO_CLEAR_STALL) && USB_HOST_CONFIG_CLASS_AUTO_CLEAR_STALL)
+
+static void USB_HostCdcClearInHaltCallback(void *param, usb_host_transfer_t *transfer, usb_status_t status)
+{
+ usb_host_cdc_instance_struct_t *cdcInstance = (usb_host_cdc_instance_struct_t *)param;
+
+ cdcInstance->controlTransfer = NULL;
+ if (cdcInstance->inCallbackFn != NULL)
+ {
+ /* callback to application */
+ cdcInstance->inCallbackFn(cdcInstance->inCallbackParam, cdcInstance->stallDataBuffer,
+ cdcInstance->stallDataLength, kStatus_USB_TransferStall);
+ }
+ USB_HostFreeTransfer(cdcInstance->hostHandle, transfer);
+}
+
+static void USB_HostCdcClearOutHaltCallback(void *param, usb_host_transfer_t *transfer, usb_status_t status)
+{
+ usb_host_cdc_instance_struct_t *cdcInstance = (usb_host_cdc_instance_struct_t *)param;
+
+ cdcInstance->controlTransfer = NULL;
+ if (cdcInstance->outCallbackFn != NULL)
+ {
+ /* callback to application */
+ cdcInstance->outCallbackFn(cdcInstance->outCallbackParam, cdcInstance->stallDataBuffer,
+ cdcInstance->stallDataLength, kStatus_USB_TransferStall);
+ }
+ USB_HostFreeTransfer(cdcInstance->hostHandle, transfer);
+}
+static void USB_HostCdcClearInterruptHaltCallback(void *param, usb_host_transfer_t *transfer, usb_status_t status)
+{
+ usb_host_cdc_instance_struct_t *cdcInstance = (usb_host_cdc_instance_struct_t *)param;
+
+ cdcInstance->controlTransfer = NULL;
+ if (cdcInstance->interruptCallbackFn != NULL)
+ {
+ /* callback to application */
+ cdcInstance->interruptCallbackFn(cdcInstance->interruptCallbackParam, cdcInstance->stallDataBuffer,
+ cdcInstance->stallDataLength, kStatus_USB_TransferStall);
+ }
+ USB_HostFreeTransfer(cdcInstance->hostHandle, transfer);
+}
+
+static usb_status_t USB_HostCdcClearHalt(usb_host_cdc_instance_struct_t *cdcInstance,
+ usb_host_transfer_t *stallTransfer,
+ host_inner_transfer_callback_t callbackFn,
+ uint8_t endpoint)
+{
+ usb_status_t status;
+ usb_host_transfer_t *transfer;
+
+ /* malloc one transfer */
+ status = USB_HostMallocTransfer(cdcInstance->hostHandle, &transfer);
+ if (status != kStatus_USB_Success)
+ {
+#ifdef HOST_ECHO
+ usb_echo("allocate transfer error\r\n");
+#endif
+ return status;
+ }
+ cdcInstance->stallDataBuffer = stallTransfer->transferBuffer;
+ cdcInstance->stallDataLength = stallTransfer->transferSofar;
+ /* save the application callback function */
+ cdcInstance->controlCallbackFn = NULL;
+ cdcInstance->controlCallbackParam = NULL;
+ /* initialize transfer */
+ transfer->callbackFn = callbackFn;
+ transfer->callbackParam = cdcInstance;
+ transfer->transferBuffer = NULL;
+ transfer->transferLength = 0;
+ transfer->setupPacket.bRequest = USB_REQUEST_STANDARD_CLEAR_FEATURE;
+ transfer->setupPacket.bmRequestType = USB_REQUEST_TYPE_RECIPIENT_ENDPOINT;
+ transfer->setupPacket.wValue = USB_SHORT_TO_LITTLE_ENDIAN(USB_REQUEST_STANDARD_FEATURE_SELECTOR_ENDPOINT_HALT);
+ transfer->setupPacket.wIndex = USB_SHORT_TO_LITTLE_ENDIAN(endpoint);
+ transfer->setupPacket.wLength = 0;
+ status = USB_HostSendSetup(cdcInstance->hostHandle, cdcInstance->controlPipe, transfer);
+
+ if (status != kStatus_USB_Success)
+ {
+ USB_HostFreeTransfer(cdcInstance->hostHandle, transfer);
+ }
+ cdcInstance->controlTransfer = transfer;
+
+ return status;
+}
+#endif
+
+/*!
+ * @brief cdc data in pipe transfer callback.
+ *
+ * @param param callback parameter.
+ * @param transfer callback transfer.
+ * @param status transfer status.
+ */
+void USB_HostCdcDataInPipeCallback(void *param, usb_host_transfer_t *transfer, usb_status_t status)
+{
+ usb_host_cdc_instance_struct_t *cdcInstance = (usb_host_cdc_instance_struct_t *)param;
+#if ((defined USB_HOST_CONFIG_CLASS_AUTO_CLEAR_STALL) && USB_HOST_CONFIG_CLASS_AUTO_CLEAR_STALL)
+ if (status == kStatus_USB_TransferStall)
+ {
+ if (USB_HostCdcClearHalt(cdcInstance, transfer, USB_HostCdcClearInHaltCallback,
+ (USB_REQUEST_TYPE_DIR_IN |
+ ((usb_host_pipe_t *)cdcInstance->inPipe)->endpointAddress)) == kStatus_USB_Success)
+ {
+ USB_HostFreeTransfer(cdcInstance->hostHandle, transfer);
+ return;
+ }
+ }
+#endif
+
+ if (cdcInstance->inCallbackFn != NULL)
+ {
+ cdcInstance->inCallbackFn(cdcInstance->inCallbackParam, transfer->transferBuffer, transfer->transferSofar,
+ status);
+ }
+ USB_HostFreeTransfer(cdcInstance->hostHandle, transfer);
+}
+
+/*!
+ * @brief cdc data out pipe transfer callback.
+ *
+ * @param param callback parameter.
+ * @param transfer callback transfer.
+ * @param status transfer status.
+ */
+void USB_HostCdcDataOutPipeCallback(void *param, usb_host_transfer_t *transfer, usb_status_t status)
+{
+ usb_host_cdc_instance_struct_t *cdcInstance = (usb_host_cdc_instance_struct_t *)param;
+#if ((defined USB_HOST_CONFIG_CLASS_AUTO_CLEAR_STALL) && USB_HOST_CONFIG_CLASS_AUTO_CLEAR_STALL)
+ if (status == kStatus_USB_TransferStall)
+ {
+ if (USB_HostCdcClearHalt(cdcInstance, transfer, USB_HostCdcClearOutHaltCallback,
+ (USB_REQUEST_TYPE_DIR_OUT |
+ ((usb_host_pipe_t *)cdcInstance->outPipe)->endpointAddress)) == kStatus_USB_Success)
+ {
+ USB_HostFreeTransfer(cdcInstance->hostHandle, transfer);
+ return;
+ }
+ }
+#endif
+ if (cdcInstance->outCallbackFn != NULL)
+ {
+ cdcInstance->outCallbackFn(cdcInstance->outCallbackParam, transfer->transferBuffer, transfer->transferSofar,
+ status);
+ }
+
+ USB_HostFreeTransfer(cdcInstance->hostHandle, transfer);
+}
+
+/*!
+ * @brief cdc data out pipe transfer callback.
+ *
+ * @param param callback parameter.
+ * @param transfer callback transfer.
+ * @param status transfer status.
+ */
+void USB_HostCdcInterruptPipeCallback(void *param, usb_host_transfer_t *transfer, usb_status_t status)
+{
+ usb_host_cdc_instance_struct_t *cdcInstance = (usb_host_cdc_instance_struct_t *)param;
+
+#if ((defined USB_HOST_CONFIG_CLASS_AUTO_CLEAR_STALL) && USB_HOST_CONFIG_CLASS_AUTO_CLEAR_STALL)
+ if (status == kStatus_USB_TransferStall)
+ {
+ if (USB_HostCdcClearHalt(
+ cdcInstance, transfer, USB_HostCdcClearInterruptHaltCallback,
+ (USB_REQUEST_TYPE_DIR_OUT | ((usb_host_pipe_t *)cdcInstance->interruptPipe)->endpointAddress)) ==
+ kStatus_USB_Success)
+ {
+ USB_HostFreeTransfer(cdcInstance->hostHandle, transfer);
+ return;
+ }
+ }
+#endif
+
+ if (cdcInstance->interruptCallbackFn != NULL)
+ {
+ cdcInstance->interruptCallbackFn(cdcInstance->interruptCallbackParam, transfer->transferBuffer,
+ transfer->transferSofar, status);
+ }
+ USB_HostFreeTransfer(cdcInstance->hostHandle, transfer);
+}
+
+/*!
+ * @brief cdc data out pipe transfer callback.
+ *
+ * @param param callback parameter.
+ * @param transfer callback transfer.
+ * @param status transfer status.
+ */
+void USB_HostCdcControlPipeCallback(void *param, usb_host_transfer_t *transfer, usb_status_t status)
+{
+ usb_host_cdc_instance_struct_t *cdcInstance = (usb_host_cdc_instance_struct_t *)param;
+
+ if (cdcInstance->controlCallbackFn != NULL)
+ {
+ cdcInstance->controlCallbackFn(cdcInstance->controlCallbackParam, transfer->transferBuffer,
+ transfer->transferSofar, status);
+ }
+ USB_HostFreeTransfer(cdcInstance->hostHandle, transfer);
+}
+
+/*!
+ * @brief cdc open data interface.
+ *
+ * @param cdcInstance cdc instance pointer.
+ *
+ * @return kStatus_USB_Success or error codes.
+ */
+static usb_status_t USB_HostCdcOpenDataInterface(usb_host_cdc_instance_struct_t *cdcInstance)
+{
+ usb_status_t status;
+ uint8_t ep_index = 0;
+ usb_host_pipe_init_t pipeInit;
+ usb_descriptor_endpoint_t *ep_desc = NULL;
+ usb_host_interface_t *interfaceHandle;
+
+ if (cdcInstance->inPipe != NULL)
+ {
+ status = USB_HostClosePipe(cdcInstance->hostHandle, cdcInstance->inPipe);
+
+ if (status != kStatus_USB_Success)
+ {
+#ifdef HOST_ECHO
+ usb_echo("error when close pipe\r\n");
+#endif
+ }
+ cdcInstance->inPipe = NULL;
+ }
+
+ if (cdcInstance->outPipe != NULL)
+ {
+ status = USB_HostClosePipe(cdcInstance->hostHandle, cdcInstance->outPipe);
+
+ if (status != kStatus_USB_Success)
+ {
+#ifdef HOST_ECHO
+ usb_echo("error when close pipe\r\n");
+#endif
+ }
+ cdcInstance->outPipe = NULL;
+ }
+ status = USB_HostOpenDeviceInterface(cdcInstance->deviceHandle, cdcInstance->dataInterfaceHandle);
+ if (status != kStatus_USB_Success)
+ {
+ return status;
+ }
+ /* open interface pipes */
+ interfaceHandle = (usb_host_interface_t *)cdcInstance->dataInterfaceHandle;
+
+ for (ep_index = 0; ep_index < interfaceHandle->epCount; ++ep_index)
+ {
+ ep_desc = interfaceHandle->epList[ep_index].epDesc;
+ if (((ep_desc->bEndpointAddress & USB_DESCRIPTOR_ENDPOINT_ADDRESS_DIRECTION_MASK) ==
+ USB_DESCRIPTOR_ENDPOINT_ADDRESS_DIRECTION_IN) &&
+ ((ep_desc->bmAttributes & USB_DESCRIPTOR_ENDPOINT_ATTRIBUTE_TYPE_MASK) == USB_ENDPOINT_BULK))
+ {
+ pipeInit.devInstance = cdcInstance->deviceHandle;
+ pipeInit.pipeType = USB_ENDPOINT_BULK;
+ pipeInit.direction = USB_IN;
+ pipeInit.endpointAddress = (ep_desc->bEndpointAddress & USB_DESCRIPTOR_ENDPOINT_ADDRESS_NUMBER_MASK);
+ pipeInit.interval = ep_desc->bInterval;
+ pipeInit.maxPacketSize = (uint16_t)(USB_SHORT_FROM_LITTLE_ENDIAN_ADDRESS(ep_desc->wMaxPacketSize) &
+ USB_DESCRIPTOR_ENDPOINT_MAXPACKETSIZE_SIZE_MASK);
+ pipeInit.numberPerUframe = (USB_SHORT_FROM_LITTLE_ENDIAN_ADDRESS(ep_desc->wMaxPacketSize) &
+ USB_DESCRIPTOR_ENDPOINT_MAXPACKETSIZE_MULT_TRANSACTIONS_MASK);
+ pipeInit.nakCount = USB_HOST_CONFIG_MAX_NAK;
+
+ cdcInstance->bulkInPacketSize = pipeInit.maxPacketSize;
+ status = USB_HostOpenPipe(cdcInstance->hostHandle, &cdcInstance->inPipe, &pipeInit);
+ if (status != kStatus_USB_Success)
+ {
+#ifdef HOST_ECHO
+ usb_echo("usb_host_audio_set_interface fail to open pipe\r\n");
+#endif
+ return kStatus_USB_Error;
+ }
+ }
+ else if (((ep_desc->bEndpointAddress & USB_DESCRIPTOR_ENDPOINT_ADDRESS_DIRECTION_MASK) ==
+ USB_DESCRIPTOR_ENDPOINT_ADDRESS_DIRECTION_OUT) &&
+ ((ep_desc->bmAttributes & USB_DESCRIPTOR_ENDPOINT_ATTRIBUTE_TYPE_MASK) == USB_ENDPOINT_BULK))
+ {
+ pipeInit.devInstance = cdcInstance->deviceHandle;
+ pipeInit.pipeType = USB_ENDPOINT_BULK;
+ pipeInit.direction = USB_OUT;
+ pipeInit.endpointAddress = (ep_desc->bEndpointAddress & USB_DESCRIPTOR_ENDPOINT_ADDRESS_NUMBER_MASK);
+ pipeInit.interval = ep_desc->bInterval;
+ pipeInit.maxPacketSize = (uint16_t)(USB_SHORT_FROM_LITTLE_ENDIAN_ADDRESS(ep_desc->wMaxPacketSize) &
+ USB_DESCRIPTOR_ENDPOINT_MAXPACKETSIZE_SIZE_MASK);
+ pipeInit.numberPerUframe = (USB_SHORT_FROM_LITTLE_ENDIAN_ADDRESS(ep_desc->wMaxPacketSize) &
+ USB_DESCRIPTOR_ENDPOINT_MAXPACKETSIZE_MULT_TRANSACTIONS_MASK);
+ pipeInit.nakCount = USB_HOST_CONFIG_MAX_NAK;
+
+ cdcInstance->bulkOutPacketSize = pipeInit.maxPacketSize;
+ status = USB_HostOpenPipe(cdcInstance->hostHandle, &cdcInstance->outPipe, &pipeInit);
+ if (status != kStatus_USB_Success)
+ {
+#ifdef HOST_ECHO
+ usb_echo("usb_host_cdc_set_dat_interface fail to open pipe\r\n");
+#endif
+ return kStatus_USB_Error;
+ }
+ }
+ else
+ {
+ }
+ }
+ return kStatus_USB_Success;
+}
+
+/*!
+ * @brief cdc set data interface callback, open pipes.
+ *
+ * @param param callback parameter.
+ * @param transfer callback transfer.
+ * @param status transfer status.
+ */
+static void USB_HostCdcSetDataInterfaceCallback(void *param, usb_host_transfer_t *transfer, usb_status_t status)
+{
+ usb_host_cdc_instance_struct_t *cdcInstance = (usb_host_cdc_instance_struct_t *)param;
+
+ cdcInstance->controlTransfer = NULL;
+ if (status == kStatus_USB_Success)
+ {
+ status = USB_HostCdcOpenDataInterface(cdcInstance);
+ }
+
+ if (cdcInstance->controlCallbackFn != NULL)
+ {
+ cdcInstance->controlCallbackFn(cdcInstance->controlCallbackParam, NULL, 0, status);
+ }
+ USB_HostFreeTransfer(cdcInstance->hostHandle, transfer);
+}
+
+/*!
+ * @brief cdc open control interface.
+ *
+ * @param cdcInstance cdc instance pointer.
+ *
+ * @return kStatus_USB_Success or error codes.
+ */
+static usb_status_t USB_HostCdcOpenControlInterface(usb_host_cdc_instance_struct_t *cdcInstance)
+{
+ usb_status_t status;
+ uint8_t ep_index = 0;
+ usb_host_pipe_init_t pipeInit;
+ usb_descriptor_endpoint_t *ep_desc = NULL;
+ usb_host_interface_t *interfaceHandle;
+
+ if (cdcInstance->interruptPipe != NULL)
+ {
+ status = USB_HostCancelTransfer(cdcInstance->hostHandle, cdcInstance->interruptPipe, NULL);
+ status = USB_HostClosePipe(cdcInstance->hostHandle, cdcInstance->interruptPipe);
+
+ if (status != kStatus_USB_Success)
+ {
+#ifdef HOST_ECHO
+ usb_echo("error when close pipe\r\n");
+#endif
+ }
+ cdcInstance->interruptPipe = NULL;
+ }
+
+ status = USB_HostOpenDeviceInterface(cdcInstance->deviceHandle, cdcInstance->controlInterfaceHandle);
+ if (status != kStatus_USB_Success)
+ {
+ return status;
+ }
+ /* open interface pipes */
+ interfaceHandle = (usb_host_interface_t *)cdcInstance->controlInterfaceHandle;
+
+ for (ep_index = 0; ep_index < interfaceHandle->epCount; ++ep_index)
+ {
+ ep_desc = interfaceHandle->epList[ep_index].epDesc;
+ if (((ep_desc->bEndpointAddress & USB_DESCRIPTOR_ENDPOINT_ADDRESS_DIRECTION_MASK) ==
+ USB_DESCRIPTOR_ENDPOINT_ADDRESS_DIRECTION_IN) &&
+ ((ep_desc->bmAttributes & USB_DESCRIPTOR_ENDPOINT_ATTRIBUTE_TYPE_MASK) == USB_ENDPOINT_INTERRUPT))
+ {
+ pipeInit.devInstance = cdcInstance->deviceHandle;
+ pipeInit.pipeType = USB_ENDPOINT_INTERRUPT;
+ pipeInit.direction = USB_IN;
+ pipeInit.endpointAddress = (ep_desc->bEndpointAddress & USB_DESCRIPTOR_ENDPOINT_ADDRESS_NUMBER_MASK);
+ pipeInit.interval = ep_desc->bInterval;
+ pipeInit.maxPacketSize = (uint16_t)(USB_SHORT_FROM_LITTLE_ENDIAN_ADDRESS(ep_desc->wMaxPacketSize) &
+ USB_DESCRIPTOR_ENDPOINT_MAXPACKETSIZE_SIZE_MASK);
+ pipeInit.numberPerUframe = (USB_SHORT_FROM_LITTLE_ENDIAN_ADDRESS(ep_desc->wMaxPacketSize) &
+ USB_DESCRIPTOR_ENDPOINT_MAXPACKETSIZE_MULT_TRANSACTIONS_MASK);
+ pipeInit.nakCount = USB_HOST_CONFIG_MAX_NAK;
+
+ cdcInstance->packetSize = pipeInit.maxPacketSize;
+
+ status = USB_HostOpenPipe(cdcInstance->hostHandle, &cdcInstance->interruptPipe, &pipeInit);
+ if (status != kStatus_USB_Success)
+ {
+#ifdef HOST_ECHO
+ usb_echo("USB_HostCdcSetControlInterface fail to open pipe\r\n");
+#endif
+ return kStatus_USB_Error;
+ }
+ }
+ }
+ return kStatus_USB_Success;
+}
+
+/*!
+ * @brief cdc set control interface callback, open pipes.
+ *
+ * @param param callback parameter.
+ * @param transfer callback transfer.
+ * @param status transfer status.
+ */
+static void USB_HostCdcSetContorlInterfaceCallback(void *param, usb_host_transfer_t *transfer, usb_status_t status)
+{
+ usb_host_cdc_instance_struct_t *cdcInstance = (usb_host_cdc_instance_struct_t *)param;
+
+ cdcInstance->controlTransfer = NULL;
+ if (status == kStatus_USB_Success)
+ {
+ status = USB_HostCdcOpenControlInterface(cdcInstance);
+ }
+
+ if (cdcInstance->controlCallbackFn != NULL)
+ {
+ cdcInstance->controlCallbackFn(cdcInstance->controlCallbackParam, NULL, 0, status);
+ }
+ USB_HostFreeTransfer(cdcInstance->hostHandle, transfer);
+}
+
+/*!
+ * @brief initialize the cdc instance.
+ *
+ * This function allocate the resource for cdc instance.
+ *
+ * @param deviceHandle the device handle.
+ * @param classHandle return class handle.
+ *
+ * @retval kStatus_USB_Success The device is initialized successfully.
+ * @retval kStatus_USB_AllocFail Allocate memory fail.
+ */
+usb_status_t USB_HostCdcInit(usb_device_handle deviceHandle, usb_host_class_handle *classHandle)
+{
+ usb_host_cdc_instance_struct_t *control_ptr =
+ (usb_host_cdc_instance_struct_t *)USB_OsaMemoryAllocate(sizeof(usb_host_cdc_instance_struct_t));
+ uint32_t info_value;
+
+ if (control_ptr == NULL)
+ {
+ return kStatus_USB_AllocFail;
+ }
+
+ control_ptr->deviceHandle = deviceHandle;
+ control_ptr->controlInterfaceHandle = NULL;
+ control_ptr->dataInterfaceHandle = NULL;
+ USB_HostHelperGetPeripheralInformation(deviceHandle, kUSB_HostGetHostHandle, &info_value);
+ control_ptr->hostHandle = (usb_host_handle)info_value;
+ USB_HostHelperGetPeripheralInformation(deviceHandle, kUSB_HostGetDeviceControlPipe, &info_value);
+ control_ptr->controlPipe = (usb_host_pipe_handle)info_value;
+
+ *classHandle = control_ptr;
+ return kStatus_USB_Success;
+}
+
+/*!
+ * @brief set control interface.
+ *
+ * This function bind the control interface with the cdc instance.
+ *
+ * @param classHandle the class handle.
+ * @param interfaceHandle the control interface handle.
+ * @param alternateSetting the alternate setting value.
+ * @param callbackFn this callback is called after this function completes.
+ * @param callbackParam the first parameter in the callback function.
+ *
+ * @retval kStatus_USB_Success The device is initialized successfully.
+ * @retval kStatus_USB_InvalidHandle The classHandle is NULL pointer.
+ * @retval kStatus_USB_Busy There is no idle transfer.
+ * @retval kStatus_USB_Error send transfer fail, please reference to USB_HostSendSetup.
+ * @retval kStatus_USB_Busy callback return status, there is no idle pipe.
+ * @retval kStatus_USB_TransferStall callback return status, the transfer is stall by device.
+ * @retval kStatus_USB_Error callback return status, open pipe fail, please reference to USB_HostOpenPipe.
+ */
+usb_status_t USB_HostCdcSetControlInterface(usb_host_class_handle classHandle,
+ usb_host_interface_handle interfaceHandle,
+ uint8_t alternateSetting,
+ transfer_callback_t callbackFn,
+ void *callbackParam)
+{
+ usb_status_t status;
+ usb_host_cdc_instance_struct_t *cdcInstance = (usb_host_cdc_instance_struct_t *)classHandle;
+ usb_host_transfer_t *transfer;
+
+ status = kStatus_USB_Success;
+ if (classHandle == NULL)
+ {
+ return kStatus_USB_InvalidParameter;
+ }
+
+ cdcInstance->controlInterfaceHandle = interfaceHandle;
+
+ /* cancel transfers */
+ if (cdcInstance->interruptPipe != NULL)
+ {
+ status = USB_HostCancelTransfer(cdcInstance->hostHandle, cdcInstance->interruptPipe, NULL);
+
+ if (status != kStatus_USB_Success)
+ {
+#ifdef HOST_ECHO
+ usb_echo("error when cancel pipe\r\n");
+#endif
+ }
+ }
+
+ if (alternateSetting == 0)
+ {
+ if (callbackFn != NULL)
+ {
+ status = USB_HostCdcOpenControlInterface(cdcInstance);
+ callbackFn(callbackParam, NULL, 0, status);
+ }
+ }
+ else
+ {
+ if (USB_HostMallocTransfer(cdcInstance->hostHandle, &transfer) != kStatus_USB_Success)
+ {
+#ifdef HOST_ECHO
+ usb_echo("error to get transfer\r\n");
+#endif
+ return kStatus_USB_Error;
+ }
+ cdcInstance->controlCallbackFn = callbackFn;
+ cdcInstance->controlCallbackParam = callbackParam;
+ /* initialize transfer */
+ transfer->callbackFn = USB_HostCdcSetContorlInterfaceCallback;
+ transfer->callbackParam = cdcInstance;
+ transfer->setupPacket.bRequest = USB_REQUEST_STANDARD_SET_INTERFACE;
+ transfer->setupPacket.bmRequestType = USB_REQUEST_TYPE_RECIPIENT_INTERFACE;
+ transfer->setupPacket.wIndex = USB_SHORT_TO_LITTLE_ENDIAN(
+ ((usb_host_interface_t *)cdcInstance->controlInterfaceHandle)->interfaceDesc->bInterfaceNumber);
+ transfer->setupPacket.wValue = USB_SHORT_TO_LITTLE_ENDIAN(alternateSetting);
+ transfer->setupPacket.wLength = 0;
+ transfer->transferBuffer = NULL;
+ transfer->transferLength = 0;
+ status = USB_HostSendSetup(cdcInstance->hostHandle, cdcInstance->controlPipe, transfer);
+
+ if (status == kStatus_USB_Success)
+ {
+ cdcInstance->controlTransfer = transfer;
+ }
+ else
+ {
+ USB_HostFreeTransfer(cdcInstance->hostHandle, transfer);
+ }
+ }
+
+ return status;
+}
+
+/*!
+ * @brief set data interface.
+ *
+ * This function bind the control interface with the cdc instance.
+ *
+ * @param classHandle the class handle.
+ * @param interfaceHandle the data interface handle.
+ * @param alternateSetting the alternate setting value.
+ * @param callbackFn this callback is called after this function completes.
+ * @param callbackParam the first parameter in the callback function.
+ *
+ * @retval kStatus_USB_Success The device is initialized successfully.
+ * @retval kStatus_USB_InvalidHandle The classHandle is NULL pointer.
+ * @retval kStatus_USB_Busy There is no idle transfer.
+ * @retval kStatus_USB_Error send transfer fail, please reference to USB_HostSendSetup.
+ * @retval kStatus_USB_Busy callback return status, there is no idle pipe.
+ * @retval kStatus_USB_TransferStall callback return status, the transfer is stall by device.
+ * @retval kStatus_USB_Error callback return status, open pipe fail, please reference to USB_HostOpenPipe.
+ */
+usb_status_t USB_HostCdcSetDataInterface(usb_host_class_handle classHandle,
+ usb_host_interface_handle interfaceHandle,
+ uint8_t alternateSetting,
+ transfer_callback_t callbackFn,
+ void *callbackParam)
+{
+ usb_status_t status;
+ usb_host_cdc_instance_struct_t *cdcInstance = (usb_host_cdc_instance_struct_t *)classHandle;
+ usb_host_transfer_t *transfer;
+
+ status = kStatus_USB_Success;
+ if (classHandle == NULL)
+ {
+ return kStatus_USB_InvalidParameter;
+ }
+
+ cdcInstance->dataInterfaceHandle = interfaceHandle;
+
+ /* cancel transfers */
+ if (cdcInstance->inPipe != NULL)
+ {
+ status = USB_HostCancelTransfer(cdcInstance->hostHandle, cdcInstance->inPipe, NULL);
+
+ if (status != kStatus_USB_Success)
+ {
+#ifdef HOST_ECHO
+ usb_echo("error when cancel pipe\r\n");
+#endif
+ }
+ }
+
+ if (cdcInstance->outPipe != NULL)
+ {
+ status = USB_HostCancelTransfer(cdcInstance->hostHandle, cdcInstance->outPipe, NULL);
+
+ if (status != kStatus_USB_Success)
+ {
+#ifdef HOST_ECHO
+ usb_echo("error when cancel pipe\r\n");
+#endif
+ }
+ }
+
+ if (alternateSetting == 0)
+ {
+ if (callbackFn != NULL)
+ {
+ status = USB_HostCdcOpenDataInterface(cdcInstance);
+ callbackFn(callbackParam, NULL, 0, status);
+ }
+ }
+ else
+ {
+ if (USB_HostMallocTransfer(cdcInstance->hostHandle, &transfer) != kStatus_USB_Success)
+ {
+#ifdef HOST_ECHO
+ usb_echo("error to get transfer\r\n");
+#endif
+ return kStatus_USB_Error;
+ }
+ cdcInstance->controlCallbackFn = callbackFn;
+ cdcInstance->controlCallbackParam = callbackParam;
+ /* initialize transfer */
+ transfer->callbackFn = USB_HostCdcSetDataInterfaceCallback;
+ transfer->callbackParam = cdcInstance;
+ transfer->setupPacket.bRequest = USB_REQUEST_STANDARD_SET_INTERFACE;
+ transfer->setupPacket.bmRequestType = USB_REQUEST_TYPE_RECIPIENT_INTERFACE;
+ transfer->setupPacket.wIndex = USB_SHORT_TO_LITTLE_ENDIAN(
+ ((usb_host_interface_t *)cdcInstance->dataInterfaceHandle)->interfaceDesc->bInterfaceNumber);
+ transfer->setupPacket.wValue = USB_SHORT_TO_LITTLE_ENDIAN(alternateSetting);
+ transfer->setupPacket.wLength = 0;
+ transfer->transferBuffer = NULL;
+ transfer->transferLength = 0;
+ status = USB_HostSendSetup(cdcInstance->hostHandle, cdcInstance->controlPipe, transfer);
+
+ if (status == kStatus_USB_Success)
+ {
+ cdcInstance->controlTransfer = transfer;
+ }
+ else
+ {
+ USB_HostFreeTransfer(cdcInstance->hostHandle, transfer);
+ }
+ }
+
+ return status;
+}
+
+/*!
+ * @brief de-initialize the cdc instance.
+ *
+ * This function release the resource for cdc instance.
+ *
+ * @param deviceHandle the device handle.
+ * @param classHandle the class handle.
+ *
+ * @retval kStatus_USB_Success The device is de-initialized successfully.
+ */
+usb_status_t USB_HostCdcDeinit(usb_device_handle deviceHandle, usb_host_class_handle classHandle)
+{
+ usb_status_t status;
+ usb_host_cdc_instance_struct_t *cdcInstance = (usb_host_cdc_instance_struct_t *)classHandle;
+
+ if (deviceHandle == NULL)
+ {
+ return kStatus_USB_InvalidHandle;
+ }
+
+ if (classHandle != NULL)
+ {
+ if (cdcInstance->interruptPipe != NULL)
+ {
+ status = USB_HostCancelTransfer(cdcInstance->hostHandle, cdcInstance->interruptPipe, NULL);
+ status = USB_HostClosePipe(cdcInstance->hostHandle, cdcInstance->interruptPipe);
+
+ if (status != kStatus_USB_Success)
+ {
+#ifdef HOST_ECHO
+ usb_echo("error when close pipe\r\n");
+#endif
+ }
+ cdcInstance->interruptPipe = NULL;
+ }
+
+ USB_HostCloseDeviceInterface(deviceHandle, cdcInstance->controlInterfaceHandle);
+
+ if (cdcInstance->inPipe != NULL)
+ {
+ status = USB_HostCancelTransfer(cdcInstance->hostHandle, cdcInstance->inPipe, NULL);
+ status = USB_HostClosePipe(cdcInstance->hostHandle, cdcInstance->inPipe);
+
+ if (status != kStatus_USB_Success)
+ {
+#ifdef HOST_ECHO
+ usb_echo("error when close pipe\r\n");
+#endif
+ }
+ cdcInstance->inPipe = NULL;
+ }
+ if (cdcInstance->outPipe != NULL)
+ {
+ status = USB_HostCancelTransfer(cdcInstance->hostHandle, cdcInstance->outPipe, NULL);
+ status = USB_HostClosePipe(cdcInstance->hostHandle, cdcInstance->outPipe);
+
+ if (status != kStatus_USB_Success)
+ {
+#ifdef HOST_ECHO
+ usb_echo("error when close pipe\r\n");
+#endif
+ }
+ cdcInstance->outPipe = NULL;
+ }
+ if ((cdcInstance->controlPipe != NULL) && (cdcInstance->controlTransfer != NULL))
+ {
+ status =
+ USB_HostCancelTransfer(cdcInstance->hostHandle, cdcInstance->controlPipe, cdcInstance->controlTransfer);
+ }
+ USB_HostCloseDeviceInterface(deviceHandle, cdcInstance->dataInterfaceHandle);
+
+ USB_OsaMemoryFree(cdcInstance);
+ }
+ else
+ {
+ USB_HostCloseDeviceInterface(deviceHandle, NULL);
+ }
+
+ return kStatus_USB_Success;
+}
+
+/*!
+ * @brief receive data.
+ *
+ * This function implements cdc receiving data.
+ *
+ * @param classHandle the class handle.
+ * @param buffer the buffer pointer.
+ * @param bufferLength the buffer length.
+ * @param callbackFn this callback is called after this function completes.
+ * @param callbackParam the first parameter in the callback function.
+ *
+ * @retval kStatus_USB_Success receive request successfully.
+ * @retval kStatus_USB_InvalidHandle The classHandle is NULL pointer.
+ * @retval kStatus_USB_Busy There is no idle transfer.
+ * @retval kStatus_USB_Error pipe is not initialized.
+ * Or, send transfer fail, please reference to USB_HostRecv.
+ */
+usb_status_t USB_HostCdcDataRecv(usb_host_class_handle classHandle,
+ uint8_t *buffer,
+ uint32_t bufferLength,
+ transfer_callback_t callbackFn,
+ void *callbackParam)
+{
+ usb_host_cdc_instance_struct_t *cdcInstance = (usb_host_cdc_instance_struct_t *)classHandle;
+ usb_host_transfer_t *transfer;
+
+ if (classHandle == NULL)
+ {
+ return kStatus_USB_InvalidHandle;
+ }
+
+ if (cdcInstance->inPipe == NULL)
+ {
+ return kStatus_USB_Error;
+ }
+
+ if (USB_HostMallocTransfer(cdcInstance->hostHandle, &transfer) != kStatus_USB_Success)
+ {
+#ifdef HOST_ECHO
+ usb_echo("error to get transfer\r\n");
+#endif
+ return kStatus_USB_Error;
+ }
+ cdcInstance->inCallbackFn = callbackFn;
+ cdcInstance->inCallbackParam = callbackParam;
+ transfer->transferBuffer = buffer;
+ transfer->transferLength = bufferLength;
+ transfer->callbackFn = USB_HostCdcDataInPipeCallback;
+ transfer->callbackParam = cdcInstance;
+
+ if (USB_HostRecv(cdcInstance->hostHandle, cdcInstance->inPipe, transfer) != kStatus_USB_Success)
+ {
+#ifdef HOST_ECHO
+ usb_echo("failt to USB_HostRecv\r\n");
+#endif
+ USB_HostFreeTransfer(cdcInstance->hostHandle, transfer);
+ return kStatus_USB_Error;
+ }
+
+ return kStatus_USB_Success;
+}
+
+/*!
+ * @brief send data.
+ *
+ * This function implements cdc sending data.
+ *
+ * @param classHandle the class handle.
+ * @param buffer the buffer pointer.
+ * @param bufferLength the buffer length.
+ * @param callbackFn this callback is called after this function completes.
+ * @param callbackParam the first parameter in the callback function.
+ *
+ * @retval kStatus_USB_Success receive request successfully.
+ * @retval kStatus_USB_InvalidHandle The classHandle is NULL pointer.
+ * @retval kStatus_USB_Busy There is no idle transfer.
+ * @retval kStatus_USB_Error pipe is not initialized.
+ * Or, send transfer fail, please reference to USB_HostSend.
+ */
+usb_status_t USB_HostCdcDataSend(usb_host_class_handle classHandle,
+ uint8_t *buffer,
+ uint32_t bufferLength,
+ transfer_callback_t callbackFn,
+ void *callbackParam)
+{
+ usb_host_cdc_instance_struct_t *cdcInstance = (usb_host_cdc_instance_struct_t *)classHandle;
+ usb_host_transfer_t *transfer;
+
+ if (classHandle == NULL)
+ {
+ return kStatus_USB_InvalidHandle;
+ }
+
+ if (cdcInstance->outPipe == NULL)
+ {
+ return kStatus_USB_Error;
+ }
+
+ if (USB_HostMallocTransfer(cdcInstance->hostHandle, &transfer) != kStatus_USB_Success)
+ {
+#ifdef HOST_ECHO
+ usb_echo("error to get transfer\r\n");
+#endif
+ return kStatus_USB_Error;
+ }
+ cdcInstance->outCallbackFn = callbackFn;
+ cdcInstance->outCallbackParam = callbackParam;
+ transfer->transferBuffer = buffer;
+ transfer->transferLength = bufferLength;
+ transfer->callbackFn = USB_HostCdcDataOutPipeCallback;
+ transfer->callbackParam = cdcInstance;
+
+ if (USB_HostSend(cdcInstance->hostHandle, cdcInstance->outPipe, transfer) != kStatus_USB_Success)
+ {
+#ifdef HOST_ECHO
+ usb_echo("failt to USB_HostSend\r\n");
+#endif
+ USB_HostFreeTransfer(cdcInstance->hostHandle, transfer);
+ return kStatus_USB_Error;
+ }
+ return kStatus_USB_Success;
+}
+
+/*!
+ * @brief interrupt receive data.
+ *
+ * This function implements interrupt receiving data.
+ *
+ * @param classHandle the class handle.
+ * @param buffer the buffer pointer.
+ * @param bufferLength the buffer length.
+ * @param callbackFn this callback is called after this function completes.
+ * @param callbackParam the first parameter in the callback function.
+ *
+ * @retval kStatus_USB_Success receive request successfully.
+ * @retval kStatus_USB_InvalidHandle The classHandle is NULL pointer.
+ * @retval kStatus_USB_Busy There is no idle transfer.
+ * @retval kStatus_USB_Error pipe is not initialized.
+ * Or, send transfer fail, please reference to USB_HostRecv.
+ */
+usb_status_t USB_HostCdcInterruptRecv(usb_host_class_handle classHandle,
+ uint8_t *buffer,
+ uint32_t bufferLength,
+ transfer_callback_t callbackFn,
+ void *callbackParam)
+{
+ usb_host_cdc_instance_struct_t *cdcInstance = (usb_host_cdc_instance_struct_t *)classHandle;
+ usb_host_transfer_t *transfer;
+
+ if (classHandle == NULL)
+ {
+ return kStatus_USB_InvalidHandle;
+ }
+
+ if (cdcInstance->interruptPipe == NULL)
+ {
+ return kStatus_USB_Error;
+ }
+
+ if (USB_HostMallocTransfer(cdcInstance->hostHandle, &transfer) != kStatus_USB_Success)
+ {
+#ifdef HOST_ECHO
+ usb_echo("error to get transfer\r\n");
+#endif
+ return kStatus_USB_Error;
+ }
+ cdcInstance->interruptCallbackFn = callbackFn;
+ cdcInstance->interruptCallbackParam = callbackParam;
+ transfer->transferBuffer = buffer;
+ transfer->transferLength = bufferLength;
+ transfer->callbackFn = USB_HostCdcInterruptPipeCallback;
+ transfer->callbackParam = cdcInstance;
+
+ if (USB_HostRecv(cdcInstance->hostHandle, cdcInstance->interruptPipe, transfer) != kStatus_USB_Success)
+ {
+#ifdef HOST_ECHO
+ usb_echo("failt to usb_interrupt_recv\r\n");
+#endif
+ USB_HostFreeTransfer(cdcInstance->hostHandle, transfer);
+ return kStatus_USB_Error;
+ }
+ return kStatus_USB_Success;
+}
+/*!
+ * @brief get pipe max packet size.
+ *
+ * @param[in] classHandle the class handle.
+ * @param[in] pipeType It's value is USB_ENDPOINT_CONTROL, USB_ENDPOINT_ISOCHRONOUS, USB_ENDPOINT_BULK or
+ * USB_ENDPOINT_INTERRUPT.
+ * Please reference to usb_spec.h
+ * @param[in] direction pipe direction.
+ *
+ * @retval 0 The classHandle is NULL.
+ * @retval max packet size.
+ */
+uint16_t USB_HostCdcGetPacketsize(usb_host_class_handle classHandle, uint8_t pipeType, uint8_t direction)
+{
+ usb_host_cdc_instance_struct_t *cdcInstance = (usb_host_cdc_instance_struct_t *)classHandle;
+ if (classHandle == NULL)
+ {
+ return 0;
+ }
+
+ if (pipeType == USB_ENDPOINT_BULK)
+ {
+ if (direction == USB_IN)
+ {
+ return cdcInstance->bulkInPacketSize;
+ }
+ else
+ {
+ return cdcInstance->bulkOutPacketSize;
+ }
+ }
+
+ return 0;
+}
+
+/*!
+ * @brief cdc send control transfer common code.
+ *
+ * @param classHandle the class handle.
+ * @param request_type setup packet request type.
+ * @param request setup packet request value.
+ * @param wvalue_l setup packet wvalue low byte.
+ * @param wvalue_h setup packet wvalue high byte.
+ * @param wlength setup packet wlength value.
+ * @param data data buffer pointer
+ * @param callbackFn this callback is called after this function completes.
+ * @param callbackParam the first parameter in the callback function.
+ *
+ * @return An error code or kStatus_USB_Success.
+ */
+usb_status_t USB_HostCdcControl(usb_host_class_handle classHandle,
+ uint8_t request_type,
+ uint8_t request,
+ uint8_t wvalue_l,
+ uint8_t wvalue_h,
+ uint16_t wlength,
+ uint8_t *data,
+ transfer_callback_t callbackFn,
+ void *callbackParam)
+{
+ usb_host_cdc_instance_struct_t *cdcInstance = (usb_host_cdc_instance_struct_t *)classHandle;
+ usb_host_transfer_t *transfer;
+
+ if (classHandle == NULL)
+ {
+ return kStatus_USB_InvalidHandle;
+ }
+
+ if (USB_HostMallocTransfer(cdcInstance->hostHandle, &transfer) != kStatus_USB_Success)
+ {
+#ifdef HOST_ECHO
+ usb_echo("error to get transfer\r\n");
+#endif
+ return kStatus_USB_Error;
+ }
+ cdcInstance->controlCallbackFn = callbackFn;
+ cdcInstance->controlCallbackParam = callbackParam;
+
+ transfer->transferBuffer = data;
+ transfer->transferLength = wlength;
+ transfer->callbackFn = USB_HostCdcControlPipeCallback;
+ transfer->callbackParam = cdcInstance;
+ transfer->setupPacket.bmRequestType = request_type;
+ transfer->setupPacket.bRequest = request;
+ transfer->setupPacket.wValue = (wvalue_l | (uint16_t)((uint16_t)wvalue_h << 8));
+ transfer->setupPacket.wIndex = USB_SHORT_TO_LITTLE_ENDIAN(
+ ((usb_host_interface_t *)cdcInstance->controlInterfaceHandle)->interfaceDesc->bInterfaceNumber);
+ transfer->setupPacket.wLength = USB_SHORT_TO_LITTLE_ENDIAN(wlength);
+
+ if (USB_HostSendSetup(cdcInstance->hostHandle, cdcInstance->controlPipe, transfer) != kStatus_USB_Success)
+ {
+#ifdef HOST_ECHO
+ usb_echo("failt for USB_HostSendSetup\r\n");
+#endif
+ USB_HostFreeTransfer(cdcInstance->hostHandle, transfer);
+ return kStatus_USB_Error;
+ }
+ cdcInstance->controlTransfer = transfer;
+
+ return kStatus_USB_Success;
+}
+
+/*!
+ * @brief cdc get line coding.
+ *
+ * This function implements cdc GetLineCoding request.refer to pstn spec.
+ *
+ * @param classHandle the class handle.
+ * @param buffer the buffer pointer.
+ * @param bufferLength the buffer length.
+ * @param callbackFn this callback is called after this function completes.
+ * @param callbackParam the first parameter in the callback function.
+ *
+ * @retval kStatus_USB_Success request successfully.
+ * @retval kStatus_USB_InvalidHandle The classHandle is NULL pointer.
+ * @retval kStatus_USB_Busy There is no idle transfer.
+ * @retval kStatus_USB_Error send transfer fail, please reference to USB_HostSendSetup.
+ */
+usb_status_t USB_HostCdcGetAcmLineCoding(usb_host_class_handle classHandle,
+ usb_host_cdc_line_coding_struct_t *uartLineCoding,
+ transfer_callback_t callbackFn,
+ void *callbackParam)
+{
+ return USB_HostCdcControl(
+ classHandle, USB_REQUEST_TYPE_DIR_IN | USB_REQUEST_TYPE_TYPE_CLASS | USB_REQUEST_TYPE_RECIPIENT_INTERFACE,
+ USB_HOST_CDC_GET_LINE_CODING, 0, 0, 7, (uint8_t *)uartLineCoding, callbackFn, callbackParam);
+}
+
+/*!
+ * @brief cdc setControlLineState.
+ *
+ * This function implements cdc etControlLineState request.refer to pstn spec.
+ *
+ * @param classHandle the class handle.
+ * @param buffer the buffer pointer.
+ * @param bufferLength the buffer length.
+ * @param callbackFn this callback is called after this function completes.
+ * @param callbackParam the first parameter in the callback function.
+ *
+ * @retval kStatus_USB_Success request successfully.
+ * @retval kStatus_USB_InvalidHandle The classHandle is NULL pointer.
+ * @retval kStatus_USB_Busy There is no idle transfer.
+ * @retval kStatus_USB_Error send transfer fail, please reference to USB_HostSendSetup.
+ */
+usb_status_t USB_HostCdcSetAcmCtrlState(
+ usb_host_class_handle classHandle, uint8_t dtr, uint8_t rts, transfer_callback_t callbackFn, void *callbackParam)
+{
+ uint16_t lineState = 0;
+
+ usb_host_cdc_instance_struct_t *cdcInstance = (usb_host_cdc_instance_struct_t *)classHandle;
+
+ lineState = dtr ? USB_HOST_CDC_CONTROL_LINE_STATE_DTR : 0;
+ lineState |= rts ? USB_HOST_CDC_CONTROL_LINE_STATE_RTS : 0;
+ return USB_HostCdcControl(
+ cdcInstance, USB_REQUEST_TYPE_DIR_OUT | USB_REQUEST_TYPE_TYPE_CLASS | USB_REQUEST_TYPE_RECIPIENT_INTERFACE,
+ USB_HOST_CDC_SET_CONTROL_LINE_STATE, USB_SHORT_GET_LOW(lineState), USB_SHORT_GET_HIGH(lineState), 0, NULL,
+ callbackFn, callbackParam);
+}
+
+/*!
+ * @brief cdc get acm descriptor.
+ *
+ * This function is hunting for class specific acm decriptor in the configuration ,get the corresponding
+ * descriptor .
+ *
+ * @param classHandle the class handle.
+ * @param headDesc the head function descriptor pointer.
+ * @param callManageDesc the call management functional descriptor pointer.
+ * @param abstractControlDesc the abstract control management functional pointer.
+ * @param unionInterfaceDesc the union functional descriptor pointer.
+ *
+ * @retval kStatus_USB_Error analyse descriptor error.
+ */
+usb_status_t USB_HostCdcGetAcmDescriptor(usb_host_class_handle classHandle,
+ usb_host_cdc_head_function_desc_struct_t **headDesc,
+ usb_host_cdc_call_manage_desc_struct_t **callManageDesc,
+ usb_host_cdc_abstract_control_desc_struct_t **abstractControlDesc,
+ usb_host_cdc_union_interface_desc_struct_t **unionInterfaceDesc)
+{
+ usb_status_t status;
+ usb_descriptor_union_t *ptr1;
+ uint32_t end_address;
+ usb_host_cdc_instance_struct_t *cdcInstance = (usb_host_cdc_instance_struct_t *)classHandle;
+ usb_cdc_func_desc_struct_t *cdc_common_ptr;
+ usb_host_interface_t *interface_handle;
+
+ status = kStatus_USB_Success;
+ interface_handle = (usb_host_interface_t *)cdcInstance->controlInterfaceHandle;
+ ptr1 = (usb_descriptor_union_t *)interface_handle->interfaceExtension;
+ end_address = (uint32_t)(interface_handle->interfaceExtension + interface_handle->interfaceExtensionLength);
+
+ while ((uint32_t)ptr1 < end_address)
+ {
+ cdc_common_ptr = (usb_cdc_func_desc_struct_t *)&ptr1->common;
+ switch (cdc_common_ptr->common.bDescriptorSubtype)
+ {
+ case USB_HOST_DESC_SUBTYPE_HEADER:
+ *headDesc = &cdc_common_ptr->head;
+ if ((((uint32_t)((*headDesc)->bcdCDC[1]) << 8) + (*headDesc)->bcdCDC[0]) > 0x0110)
+ {
+ status = kStatus_USB_Error;
+ }
+ break;
+ case USB_HOST_DESC_SUBTYPE_UNION:
+ if (cdc_common_ptr->unionDesc.bControlInterface == interface_handle->interfaceDesc->bInterfaceNumber)
+ {
+ *unionInterfaceDesc = &cdc_common_ptr->unionDesc;
+ }
+ else
+ {
+ status = kStatus_USB_Error;
+ }
+ break;
+ case USB_HOST_DESC_SUBTYPE_CM:
+ *callManageDesc = &cdc_common_ptr->callManage;
+ break;
+ case USB_HOST_DESC_SUBTYPE_ACM:
+ *abstractControlDesc = &cdc_common_ptr->acm;
+ break;
+ default:
+ break;
+ }
+
+ if (kStatus_USB_Success != status)
+ {
+ break;
+ }
+ ptr1 = (usb_descriptor_union_t *)((uint8_t *)ptr1 + ptr1->common.bLength);
+ }
+ cdcInstance->headDesc = *headDesc;
+ cdcInstance->callManageDesc = *callManageDesc;
+ cdcInstance->abstractControlDesc = *abstractControlDesc;
+ cdcInstance->unionInterfaceDesc = *unionInterfaceDesc;
+ return status;
+}
+
+#endif