diff options
Diffstat (limited to 'usb_1.1.0/host/usb_host_hci.c')
| -rw-r--r-- | usb_1.1.0/host/usb_host_hci.c | 754 |
1 files changed, 754 insertions, 0 deletions
diff --git a/usb_1.1.0/host/usb_host_hci.c b/usb_1.1.0/host/usb_host_hci.c new file mode 100644 index 0000000..f50af20 --- /dev/null +++ b/usb_1.1.0/host/usb_host_hci.c @@ -0,0 +1,754 @@ +/* + * 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" +#include "usb_host.h" +#include "usb_host_hci.h" +#include "usb_host_devices.h" +#include "fsl_device_registers.h" + +/******************************************************************************* + * Definitions + ******************************************************************************/ + +/******************************************************************************* + * Prototypes + ******************************************************************************/ +extern uint32_t USB_HostHubGetTotalThinkTime(uint8_t parentHubNo); + +/*! + * @brief get the idle host instance. + * + * @return host instance pointer. + */ +static usb_host_instance_t *USB_HostGetInstance(void); + +/*! + * @brief release host instance. + * + * @param hostInstance host instance pointer. + */ +static void USB_HostReleaseInstance(usb_host_instance_t *hostInstance); + +/*! + * @brief get the khci/ehci interface. + * + * @param controllerId controller id. + * @param controllerTable return controller interface structure. + */ +static void USB_HostGetControllerInterface(uint8_t controllerId, + const usb_host_controller_interface_t **controllerTable); + +#if ((defined USB_HOST_CONFIG_EHCI) && (USB_HOST_CONFIG_EHCI)) +#if ((defined USB_HOST_CONFIG_COMPLIANCE_TEST) && (USB_HOST_CONFIG_COMPLIANCE_TEST)) +extern void USB_HostEhciTestModeInit(usb_device_handle devHandle); +#endif /* USB_HOST_CONFIG_COMPLIANCE_TEST */ +#endif /* USB_HOST_CONFIG_EHCI */ + +/******************************************************************************* + * Variables + ******************************************************************************/ +/*! @brief USB host instance resource */ +usb_host_instance_t g_UsbHostInstance[USB_HOST_CONFIG_MAX_HOST]; + +#if ((defined USB_HOST_CONFIG_EHCI) && (USB_HOST_CONFIG_EHCI)) +#include "usb_host_ehci.h" +static const usb_host_controller_interface_t s_EhciInterface = \ +{ + USB_HostEhciCreate, USB_HostEhciDestory, USB_HostEhciOpenPipe, USB_HostEhciClosePipe, + USB_HostEhciWritePipe, USB_HostEhciReadpipe, USB_HostEhciIoctl, +}; +#endif /* USB_HOST_CONFIG_EHCI */ + +#if ((defined USB_HOST_CONFIG_KHCI) && (USB_HOST_CONFIG_KHCI)) +#include "usb_host_khci.h" +static const usb_host_controller_interface_t s_KhciInterface = \ +{ + USB_HostKhciCreate, USB_HostKhciDestory, USB_HostKhciOpenPipe, USB_HostKhciClosePipe, + USB_HostKhciWritePipe, USB_HostKhciReadpipe, USB_HostKciIoctl, +}; +#endif /* USB_HOST_CONFIG_KHCI */ + +/******************************************************************************* + * Code + ******************************************************************************/ + +#if ((defined USB_HOST_CONFIG_COMPLIANCE_TEST) && (USB_HOST_CONFIG_COMPLIANCE_TEST)) +/*FUNCTION*---------------------------------------------------------------- +* +* Function Name : usb_test_mode_init +* Returned Value : None +* Comments : +* This function is called by common class to initialize the class driver. It +* is called in response to a select interface call by application +* +*END*--------------------------------------------------------------------*/ +usb_status_t USB_HostTestModeInit(usb_device_handle deviceHandle) +{ +#if ((defined USB_HOST_CONFIG_EHCI) && (USB_HOST_CONFIG_EHCI)) + usb_host_device_instance_t *deviceInstance = (usb_host_device_instance_t *)deviceHandle; + usb_host_instance_t *hostInstance = (usb_host_instance_t *)deviceInstance->hostHandle; +#endif + uint32_t productId; + uint32_t vendorId; + + usb_echo("usb host test init\r\n"); + USB_HostHelperGetPeripheralInformation(deviceHandle, kUSB_HostGetDevicePID, &productId); + USB_HostHelperGetPeripheralInformation(deviceHandle, kUSB_HostGetDeviceVID, &vendorId); + usb_echo(" vendor id :0x%x product id:0x%x \r\n", vendorId, productId); + + if ((productId != 0x0200U) && (productId != 0x0101) && (productId != 0x0102) && (productId != 0x0103) && + (productId != 0x0104) && (productId != 0x0105) && (productId != 0x0106) && (productId != 0x0107) && + (productId != 0x0108)) + { + usb_echo("Unsupported Device\r\n"); + } + + if (productId == 0x0200U) + { + usb_echo("PET test device attached\r\n"); + } + else + { +#if ((defined USB_HOST_CONFIG_EHCI) && (USB_HOST_CONFIG_EHCI)) + if (hostInstance->controllerTable == &s_EhciInterface) + { + USB_HostEhciTestModeInit(deviceHandle); + } +#endif + } + + return kStatus_USB_Success; +} +#endif + +static usb_host_instance_t *USB_HostGetInstance(void) +{ + uint8_t i = 0; + USB_OSA_SR_ALLOC(); + USB_OSA_ENTER_CRITICAL(); + for (; i < USB_HOST_CONFIG_MAX_HOST; i++) + { + if (g_UsbHostInstance[i].occupied != 1) + { + uint8_t *buffer = (uint8_t *)&g_UsbHostInstance[i]; + for (uint32_t j = 0U; j < sizeof(usb_host_instance_t); j++) + { + buffer[j] = 0x00U; + } + g_UsbHostInstance[i].occupied = 1; + USB_OSA_EXIT_CRITICAL(); + return &g_UsbHostInstance[i]; + } + } + USB_OSA_EXIT_CRITICAL(); + return NULL; +} + +static void USB_HostReleaseInstance(usb_host_instance_t *hostInstance) +{ + USB_OSA_SR_ALLOC(); + USB_OSA_ENTER_CRITICAL(); + hostInstance->occupied = 0; + USB_OSA_EXIT_CRITICAL(); +} + +static void USB_HostGetControllerInterface(uint8_t controllerId, + const usb_host_controller_interface_t **controllerTable) +{ +#if ((defined USB_HOST_CONFIG_KHCI) && (USB_HOST_CONFIG_KHCI)) + if (controllerId == kUSB_ControllerKhci0) + { + *controllerTable = &s_KhciInterface; + } +#endif /* USB_HOST_CONFIG_KHCI */ + +#if ((defined USB_HOST_CONFIG_EHCI) && (USB_HOST_CONFIG_EHCI)) + if (controllerId == kUSB_ControllerEhci0) + { + *controllerTable = &s_EhciInterface; + } +#endif /* USB_HOST_CONFIG_EHCI */ +} + +usb_status_t USB_HostInit(uint8_t controllerId, usb_host_handle *hostHandle, host_callback_t callbackFn) +{ + usb_status_t status = kStatus_USB_Success; + usb_host_instance_t *hostInstance = NULL; + usb_host_transfer_t *transferPrev = NULL; + uint8_t i = 0; + + hostInstance = USB_HostGetInstance(); /* get one host instance */ + if (hostInstance == NULL) + { + return kStatus_USB_InvalidHandle; + } + + /* get khci/ehci API table */ + USB_HostGetControllerInterface(controllerId, &hostInstance->controllerTable); + if (hostInstance->controllerTable == NULL) + { + USB_HostReleaseInstance(hostInstance); + return kStatus_USB_ControllerNotFound; + } + + /* judge the controller interface one time at here */ + if ((hostInstance->controllerTable->controllerCreate == NULL) || + (hostInstance->controllerTable->controllerDestory == NULL) || + (hostInstance->controllerTable->controllerOpenPipe == NULL) || + (hostInstance->controllerTable->controllerClosePipe == NULL) || + (hostInstance->controllerTable->controllerWritePipe == NULL) || + (hostInstance->controllerTable->controllerReadPipe == NULL) || + (hostInstance->controllerTable->controllerIoctl == NULL)) + { + return kStatus_USB_Error; + } + + /* HOST instance init*/ + hostInstance->controllerId = controllerId; + hostInstance->deviceCallback = callbackFn; + hostInstance->deviceList = NULL; + if (kStatus_USB_OSA_Success != USB_OsaMutexCreate(&hostInstance->hostMutex)) + { + USB_HostReleaseInstance(hostInstance); +#ifdef HOST_ECHO + usb_echo("host init: create host mutex fail\r\n"); +#endif + return kStatus_USB_Error; + } + + /* initialize transfer list */ + + hostInstance->transferHead = &hostInstance->transferList[0]; + transferPrev = hostInstance->transferHead; + for (i = 1; i < USB_HOST_CONFIG_MAX_TRANSFERS; ++i) + { + transferPrev->next = &hostInstance->transferList[i]; + transferPrev = transferPrev->next; + } + + /* controller create */ + status = + hostInstance->controllerTable->controllerCreate(controllerId, hostInstance, &(hostInstance->controllerHandle)); + if ((status != kStatus_USB_Success) || (hostInstance->controllerHandle == NULL)) + { + USB_OsaMutexDestroy(hostInstance->hostMutex); + USB_HostReleaseInstance(hostInstance); +#ifdef HOST_ECHO + usb_echo("host init: controller init fail\r\n"); +#endif + return kStatus_USB_Error; + } + + *hostHandle = hostInstance; + return kStatus_USB_Success; +} + +usb_status_t USB_HostDeinit(usb_host_handle hostHandle) +{ + usb_status_t status = kStatus_USB_Success; + usb_host_instance_t *hostInstance = (usb_host_instance_t *)hostHandle; + usb_host_device_instance_t *deviceInstance = NULL; + + if (hostHandle == NULL) + { + return kStatus_USB_InvalidHandle; + } + + /* device list detach */ + deviceInstance = (usb_host_device_instance_t *)hostInstance->deviceList; + while (deviceInstance != NULL) + { + deviceInstance = (usb_host_device_instance_t *)hostInstance->deviceList; + USB_HostDetachDeviceInternal(hostHandle, deviceInstance); + } + + /* controller instance destory */ + status = hostInstance->controllerTable->controllerDestory(hostInstance->controllerHandle); + hostInstance->controllerHandle = NULL; + if (status != kStatus_USB_Success) + { +#ifdef HOST_ECHO + usb_echo("host controller destory fail\r\n"); +#endif + } + + /* resource release */ + if (hostInstance->hostMutex) + { + USB_OsaMutexDestroy(hostInstance->hostMutex); + hostInstance->hostMutex = NULL; + } + USB_HostReleaseInstance(hostInstance); + + return status; +} + +usb_status_t USB_HostOpenPipe(usb_host_handle hostHandle, + usb_host_pipe_handle *pipeHandle, + usb_host_pipe_init_t *pipeInit) +{ + usb_status_t status = kStatus_USB_Success; + usb_host_instance_t *hostInstance = (usb_host_instance_t *)hostHandle; + + if ((hostHandle == NULL) || (pipeInit == NULL)) + { + return kStatus_USB_InvalidHandle; + } + + /* call controller open pipe interface */ + status = hostInstance->controllerTable->controllerOpenPipe(hostInstance->controllerHandle, pipeHandle, pipeInit); + + return status; +} + +usb_status_t USB_HostClosePipe(usb_host_handle hostHandle, usb_host_pipe_handle pipeHandle) +{ + usb_status_t status = kStatus_USB_Success; + usb_host_instance_t *hostInstance = (usb_host_instance_t *)hostHandle; + + if ((hostHandle == NULL) || (pipeHandle == NULL)) + { + return kStatus_USB_InvalidHandle; + } + + /* call controller close pipe interface */ + status = hostInstance->controllerTable->controllerClosePipe(hostInstance->controllerHandle, pipeHandle); + + return status; +} + +usb_status_t USB_HostSend(usb_host_handle hostHandle, usb_host_pipe_handle pipeHandle, usb_host_transfer_t *transfer) +{ + usb_status_t status = kStatus_USB_Success; + usb_host_instance_t *hostInstance = (usb_host_instance_t *)hostHandle; + + if ((hostHandle == NULL) || (pipeHandle == NULL) || (transfer == NULL)) + { + return kStatus_USB_InvalidHandle; + } + + /* initialize transfer */ + transfer->transferSofar = 0; + transfer->direction = USB_OUT; + + USB_HostLock(); /* This api can be called by host task and app task */ +/* keep this code: in normal situation application will guarantee the device is attached when call send/receive function + */ +#if 0 + if ((USB_HostValidateDevice(pipe_ptr->deviceHandle) != kStatus_USB_Success) || (!(USB_HostGetDeviceAttachState(pipe_ptr->deviceHandle)))) + { + USB_HostUnlock(); + return status; + } +#endif +/* call controller write pipe interface */ +#if ((defined USB_HOST_CONFIG_BUFFER_PROPERTY_CACHEABLE) && (USB_HOST_CONFIG_BUFFER_PROPERTY_CACHEABLE)) + if (transfer->transferLength > 0) + { + USB_CacheFlushLines((void *)transfer->transferBuffer, transfer->transferLength); + } +#endif + status = hostInstance->controllerTable->controllerWritePipe(hostInstance->controllerHandle, pipeHandle, transfer); + + USB_HostUnlock(); + return status; +} + +usb_status_t USB_HostSendSetup(usb_host_handle hostHandle, + usb_host_pipe_handle pipeHandle, + usb_host_transfer_t *transfer) +{ + usb_status_t status = kStatus_USB_Success; + usb_host_instance_t *hostInstance = (usb_host_instance_t *)hostHandle; + + if ((hostHandle == NULL) || (pipeHandle == NULL) || (transfer == NULL)) + { + return kStatus_USB_InvalidHandle; + } + + /* initialize transfer */ + transfer->transferSofar = 0; + transfer->next = NULL; + transfer->setupStatus = 0; + if ((transfer->setupPacket.bmRequestType & USB_REQUEST_TYPE_DIR_MASK) == USB_REQUEST_TYPE_DIR_IN) + { + transfer->direction = USB_IN; + } + else + { + transfer->direction = USB_OUT; + } + + USB_HostLock(); /* This API can be called by host task and application task */ +/* keep this code: in normal situation application will guarantee the device is attached when call send/receive function + */ +#if 0 + if ((USB_HostValidateDevice(pipe_ptr->deviceHandle) != kStatus_USB_Success) || (!(USB_HostGetDeviceAttachState(pipe_ptr->deviceHandle)))) + { + USB_HostUnlock(); + return status; + } +#endif +/* call controller write pipe interface */ +#if ((defined USB_HOST_CONFIG_BUFFER_PROPERTY_CACHEABLE) && (USB_HOST_CONFIG_BUFFER_PROPERTY_CACHEABLE)) + if (transfer->transferLength > 0) + { + USB_CacheFlushLines((void *)transfer->transferBuffer, transfer->transferLength); + } +#endif + status = hostInstance->controllerTable->controllerWritePipe(hostInstance->controllerHandle, pipeHandle, transfer); + + USB_HostUnlock(); + return status; +} + +usb_status_t USB_HostRecv(usb_host_handle hostHandle, usb_host_pipe_handle pipeHandle, usb_host_transfer_t *transfer) +{ + usb_status_t status = kStatus_USB_Success; + usb_host_instance_t *hostInstance = (usb_host_instance_t *)hostHandle; + + if ((hostHandle == NULL) || (pipeHandle == NULL) || (transfer == NULL)) + { + return kStatus_USB_InvalidHandle; + } + + /* initialize transfer */ + transfer->transferSofar = 0; + transfer->direction = USB_IN; + + USB_HostLock(); /* This API can be called by host task and application task */ +/* keep this code: in normal situation application will guarantee the device is attached when call send/receive function + */ +#if 0 + if ((USB_HostValidateDevice(pipe_ptr->deviceHandle) != kStatus_USB_Success) || (!(USB_HostGetDeviceAttachState(pipe_ptr->deviceHandle)))) + { + USB_HostUnlock(); + return status; + } +#endif + +#if ((defined USB_HOST_CONFIG_BUFFER_PROPERTY_CACHEABLE) && (USB_HOST_CONFIG_BUFFER_PROPERTY_CACHEABLE)) + if (transfer->transferLength > 0) + { + USB_CacheInvalidateLines((void *)transfer->transferBuffer, transfer->transferLength); + } +#endif + status = hostInstance->controllerTable->controllerReadPipe(hostInstance->controllerHandle, pipeHandle, transfer); + + USB_HostUnlock(); + return status; +} + +usb_status_t USB_HostCancelTransfer(usb_host_handle hostHandle, + usb_host_pipe_handle pipeHandle, + usb_host_transfer_t *transfer) +{ + usb_status_t status = kStatus_USB_Success; + usb_host_instance_t *hostInstance = (usb_host_instance_t *)hostHandle; + usb_host_cancel_param_t cancelParam; + + if ((hostHandle == NULL) || (pipeHandle == NULL)) + { + return kStatus_USB_InvalidHandle; + } + + /* initialize cancel parameter */ + cancelParam.pipeHandle = pipeHandle; + cancelParam.transfer = transfer; + + /* USB_HostLock(); This api can be called by host task and app task */ + status = hostInstance->controllerTable->controllerIoctl(hostInstance->controllerHandle, kUSB_HostCancelTransfer, + &cancelParam); + /* USB_HostUnlock(); */ + + return status; +} + +usb_status_t USB_HostMallocTransfer(usb_host_handle hostHandle, usb_host_transfer_t **transfer) +{ + usb_host_instance_t *hostInstance = (usb_host_instance_t *)hostHandle; + + if ((hostHandle == NULL) || (transfer == NULL)) + { + return kStatus_USB_InvalidHandle; + } + + /* get one from the transfer_head */ + USB_HostLock(); + if (hostInstance->transferHead != NULL) + { + *transfer = hostInstance->transferHead; + hostInstance->transferHead = hostInstance->transferHead->next; + USB_HostUnlock(); + return kStatus_USB_Success; + } + else + { + *transfer = NULL; + USB_HostUnlock(); + return kStatus_USB_Error; + } +} + +usb_status_t USB_HostFreeTransfer(usb_host_handle hostHandle, usb_host_transfer_t *transfer) +{ + usb_host_instance_t *hostInstance = (usb_host_instance_t *)hostHandle; + + if (hostHandle == NULL) + { + return kStatus_USB_InvalidHandle; + } + if (transfer == NULL) + { + return kStatus_USB_Success; + } + + /* release one to the transfer_head */ + USB_HostLock(); + transfer->next = hostInstance->transferHead; + hostInstance->transferHead = transfer; + USB_HostUnlock(); + return kStatus_USB_Success; +} + +usb_status_t USB_HostHelperGetPeripheralInformation(usb_device_handle deviceHandle, + uint32_t infoCode, + uint32_t *infoValue) +{ + usb_host_device_instance_t *deviceInstance = (usb_host_device_instance_t *)deviceHandle; + if ((deviceHandle == NULL) || (infoValue == NULL)) + { + return kStatus_USB_InvalidParameter; + } + + switch (infoCode) + { + case kUSB_HostGetDeviceAddress: /* device address */ + *infoValue = (uint32_t)deviceInstance->setAddress; + break; + + case kUSB_HostGetDeviceControlPipe: /* device control pipe */ + *infoValue = (uint32_t)deviceInstance->controlPipe; + break; + + case kUSB_HostGetHostHandle: /* device host handle */ + *infoValue = (uint32_t)deviceInstance->hostHandle; + break; + +#if ((defined USB_HOST_CONFIG_HUB) && (USB_HOST_CONFIG_HUB)) + case kUSB_HostGetDeviceHubNumber: /* device hub address */ + *infoValue = (uint32_t)deviceInstance->hubNumber; + break; + + case kUSB_HostGetDevicePortNumber: /* device port no */ + *infoValue = (uint32_t)deviceInstance->portNumber; + break; + + case kUSB_HostGetDeviceLevel: /* device level */ + *infoValue = (uint32_t)deviceInstance->level; + break; + + case kUSB_HostGetDeviceHSHubNumber: /* device high-speed hub address */ + *infoValue = (uint32_t)deviceInstance->hsHubNumber; + break; + + case kUSB_HostGetDeviceHSHubPort: /* device high-speed hub port no */ + *infoValue = (uint32_t)deviceInstance->hsHubPort; + break; + + case kUSB_HostGetHubThinkTime: /* device hub think time */ + *infoValue = USB_HostHubGetTotalThinkTime(deviceInstance->hubNumber); + break; +#else + case kUSB_HostGetDeviceHubNumber: /* device hub address */ + case kUSB_HostGetDevicePortNumber: /* device port no */ + case kUSB_HostGetDeviceHSHubNumber: /* device high-speed hub address */ + case kUSB_HostGetDeviceHSHubPort: /* device high-speed hub port no */ + case kUSB_HostGetHubThinkTime: /* device hub think time */ + *infoValue = 0; + break; + case kUSB_HostGetDeviceLevel: /* device level */ + *infoValue = 1; + break; +#endif /* USB_HOST_CONFIG_HUB */ + + case kUSB_HostGetDeviceSpeed: /* device speed */ + *infoValue = (uint32_t)deviceInstance->speed; + break; + + case kUSB_HostGetDevicePID: /* device pid */ + *infoValue = (uint32_t)USB_SHORT_FROM_LITTLE_ENDIAN_ADDRESS(deviceInstance->deviceDescriptor.idProduct); + break; + + case kUSB_HostGetDeviceVID: /* device vid */ + *infoValue = (uint32_t)USB_SHORT_FROM_LITTLE_ENDIAN_ADDRESS(deviceInstance->deviceDescriptor.idVendor); + break; + + case kUSB_HostGetDeviceConfigIndex: /* device config index */ + *infoValue = (uint32_t)deviceInstance->configurationValue - 1U; + break; + + default: + return kStatus_USB_Error; + } + + return kStatus_USB_Success; +} + +usb_status_t USB_HostHelperParseAlternateSetting(usb_host_interface_handle interfaceHandle, + uint8_t alternateSetting, + usb_host_interface_t *interface) +{ + uint32_t endPosition; + usb_descriptor_union_t *unionDes; + usb_host_ep_t *epParse; + + if (interfaceHandle == NULL) + { + return kStatus_USB_InvalidHandle; + } + + if (alternateSetting == 0) + { + return kStatus_USB_InvalidParameter; + } + + /* parse configuration descriptor */ + /* interface extend descriptor start */ + unionDes = (usb_descriptor_union_t *)(((usb_host_interface_t *)interfaceHandle)->interfaceExtension); + /* interface extend descriptor end */ + endPosition = (uint32_t)unionDes + ((usb_host_interface_t *)interfaceHandle)->interfaceExtensionLength; + + /* search for the alternate setting interface descritpor */ + while ((uint32_t)unionDes < endPosition) + { + if (unionDes->common.bDescriptorType == USB_DESCRIPTOR_TYPE_INTERFACE) + { + if (unionDes->interface.bAlternateSetting == alternateSetting) + { + break; + } + else + { + unionDes = (usb_descriptor_union_t *)((uint32_t)unionDes + unionDes->common.bLength); + } + } + else + { + unionDes = (usb_descriptor_union_t *)((uint32_t)unionDes + unionDes->common.bLength); + } + } + if ((uint32_t)unionDes >= endPosition) + { + return kStatus_USB_Error; + } + + /* initialize interface handle structure instance */ + interface->interfaceDesc = &unionDes->interface; + interface->alternateSettingNumber = 0; + interface->epCount = 0; + interface->interfaceExtension = NULL; + interface->interfaceExtensionLength = 0; + interface->interfaceIndex = unionDes->interface.bInterfaceNumber; + + /* search for endpoint descriptor start position */ + unionDes = (usb_descriptor_union_t *)((uint32_t)unionDes + unionDes->common.bLength); + interface->interfaceExtension = (uint8_t *)unionDes; + while ((uint32_t)unionDes < endPosition) + { + if ((unionDes->common.bDescriptorType != USB_DESCRIPTOR_TYPE_INTERFACE) && + (unionDes->common.bDescriptorType != USB_DESCRIPTOR_TYPE_ENDPOINT)) + { + interface->interfaceExtensionLength += unionDes->common.bLength; + unionDes = (usb_descriptor_union_t *)((uint32_t)unionDes + unionDes->common.bLength); + } + else + { + break; + } + } + + /* parse endpoint descriptor */ + if (interface->interfaceDesc->bNumEndpoints != 0) + { + if ((unionDes->common.bDescriptorType != USB_DESCRIPTOR_TYPE_ENDPOINT) || + (interface->interfaceDesc->bNumEndpoints > USB_HOST_CONFIG_INTERFACE_MAX_EP)) + { +#ifdef HOST_ECHO + usb_echo("interface descriptor error\n"); +#endif + return kStatus_USB_Error; + } + for (; interface->epCount < interface->interfaceDesc->bNumEndpoints; (interface->epCount)++) + { + if (((uint32_t)unionDes >= endPosition) || + (unionDes->common.bDescriptorType != USB_DESCRIPTOR_TYPE_ENDPOINT)) + { +#ifdef HOST_ECHO + usb_echo("endpoint descriptor error\n"); +#endif + return kStatus_USB_Error; + } + epParse = (usb_host_ep_t *)&interface->epList[interface->epCount]; + epParse->epDesc = (usb_descriptor_endpoint_t *)unionDes; + epParse->epExtensionLength = 0; + epParse->epExtension = NULL; + interface->interfaceExtensionLength += unionDes->common.bLength; + unionDes = (usb_descriptor_union_t *)((uint32_t)unionDes + unionDes->common.bLength); + epParse->epExtension = (uint8_t *)unionDes; + while ((uint32_t)unionDes < endPosition) + { + if ((unionDes->common.bDescriptorType != USB_DESCRIPTOR_TYPE_ENDPOINT) && + (unionDes->common.bDescriptorType != USB_DESCRIPTOR_TYPE_INTERFACE)) + { + epParse->epExtensionLength += unionDes->common.bLength; + interface->interfaceExtensionLength += unionDes->common.bLength; + unionDes = (usb_descriptor_union_t *)((uint32_t)unionDes + unionDes->common.bLength); + } + else + { + break; + } + } + } + } + + return kStatus_USB_Success; +} + +void USB_HostGetVersion(uint32_t *version) +{ + if (version) + { + *version = + (uint32_t)USB_MAKE_VERSION(USB_STACK_VERSION_MAJOR, USB_STACK_VERSION_MINOR, USB_STACK_VERSION_BUGFIX); + } +} |