607 lines
18 KiB
C
607 lines
18 KiB
C
/*
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* File : ecm.c
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* This file is part of RT-Thread RTOS
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* COPYRIGHT (C) 2006-2013, RT-Thread Development Team
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rt-thread.org/license/LICENSE
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*
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* Change Logs:
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* Date Author Notes
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* 2017-11-19 ZYH first version
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*/
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#include <rtdevice.h>
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#include "cdc.h"
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#ifdef ECM_DEBUG
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#define ECM_PRINTF rt_kprintf("[ECM] "); rt_kprintf
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#else
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#define ECM_PRINTF(...)
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#endif /* ECM_DEBUG */
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/* RT-Thread LWIP ethernet interface */
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#include <netif/ethernetif.h>
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#ifndef USB_ETH_MTU
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#define USB_ETH_MTU 1514
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#endif
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#define MAX_ADDR_LEN 6
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struct rt_ecm_eth
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{
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/* inherit from ethernet device */
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struct eth_device parent;
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struct ufunction * func;
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struct cdc_eps eps;
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/* interface address info */
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rt_uint8_t host_addr[MAX_ADDR_LEN];
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rt_uint8_t dev_addr[MAX_ADDR_LEN];
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ALIGN(4)
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rt_uint8_t rx_pool[512];
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ALIGN(4)
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rt_size_t rx_size;
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ALIGN(4)
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rt_size_t rx_offset;
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ALIGN(4)
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char rx_buffer[USB_ETH_MTU];
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char tx_buffer[USB_ETH_MTU];
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struct rt_semaphore tx_buffer_free;
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};
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typedef struct rt_ecm_eth * rt_ecm_eth_t;
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ALIGN(4)
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static struct udevice_descriptor _dev_desc =
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{
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USB_DESC_LENGTH_DEVICE, /* bLength */
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USB_DESC_TYPE_DEVICE, /* type */
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USB_BCD_VERSION, /* bcdUSB */
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USB_CLASS_CDC, /* bDeviceClass */
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USB_CDC_SUBCLASS_ETH, /* bDeviceSubClass */
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USB_CDC_PROTOCOL_NONE, /* bDeviceProtocol */
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0x40, /* bMaxPacketSize0 */
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_VENDOR_ID, /* idVendor */
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_PRODUCT_ID, /* idProduct */
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USB_BCD_DEVICE, /* bcdDevice */
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USB_STRING_MANU_INDEX, /* iManufacturer */
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USB_STRING_PRODUCT_INDEX, /* iProduct */
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USB_STRING_SERIAL_INDEX, /* iSerialNumber */
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USB_DYNAMIC /* bNumConfigurations */
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};
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/* communcation interface descriptor */
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ALIGN(4)
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const static struct ucdc_eth_descriptor _comm_desc =
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{
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#ifdef RT_USB_DEVICE_COMPOSITE
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/* Interface Association Descriptor */
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USB_DESC_LENGTH_IAD,
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USB_DESC_TYPE_IAD,
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USB_DYNAMIC,
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0x02,
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USB_CDC_CLASS_COMM,
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USB_CDC_SUBCLASS_ETH,
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USB_CDC_PROTOCOL_NONE,
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0x00,
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#endif
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/* Interface Descriptor */
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USB_DESC_LENGTH_INTERFACE,
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USB_DESC_TYPE_INTERFACE,
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USB_DYNAMIC,
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0x00,
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0x01,
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USB_CDC_CLASS_COMM,
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USB_CDC_SUBCLASS_ETH,
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USB_CDC_PROTOCOL_NONE,
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0x00,
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/* Header Functional Descriptor */
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sizeof(struct ucdc_header_descriptor),
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USB_CDC_CS_INTERFACE,
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USB_CDC_SCS_HEADER,
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0x0110,
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/* Union Functional Descriptor */
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sizeof(struct ucdc_union_descriptor),
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USB_CDC_CS_INTERFACE,
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USB_CDC_SCS_UNION,
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USB_DYNAMIC,
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USB_DYNAMIC,
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/* Abstract Control Management Functional Descriptor */
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sizeof(struct ucdc_enet_descriptor),
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USB_CDC_CS_INTERFACE,
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USB_CDC_SCS_ETH,
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USB_STRING_SERIAL_INDEX,
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{0,0,0,0},
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USB_ETH_MTU,
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0x00,
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0x00,
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/* Endpoint Descriptor */
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USB_DESC_LENGTH_ENDPOINT,
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USB_DESC_TYPE_ENDPOINT,
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USB_DIR_IN | USB_DYNAMIC,
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USB_EP_ATTR_INT,
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0x08,
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0xFF,
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};
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/* data interface descriptor */
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ALIGN(4)
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const static struct ucdc_data_descriptor _data_desc =
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{
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/* interface descriptor */
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USB_DESC_LENGTH_INTERFACE,
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USB_DESC_TYPE_INTERFACE,
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USB_DYNAMIC,
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0x00,
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0x02,
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USB_CDC_CLASS_DATA,
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USB_CDC_SUBCLASS_ETH,
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0x00,
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0x00,
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/* endpoint, bulk out */
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USB_DESC_LENGTH_ENDPOINT,
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USB_DESC_TYPE_ENDPOINT,
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USB_DIR_OUT | USB_DYNAMIC,
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USB_EP_ATTR_BULK,
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USB_DYNAMIC,
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0x00,
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/* endpoint, bulk in */
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USB_DESC_LENGTH_ENDPOINT,
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USB_DESC_TYPE_ENDPOINT,
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USB_DYNAMIC | USB_DIR_IN,
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USB_EP_ATTR_BULK,
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USB_DYNAMIC,
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0x00,
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};
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ALIGN(4)
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const static char* _ustring[] =
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{
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"Language", /* LANGID */
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"RT-Thread Team.", /* MANU */
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"RT-Thread ECM device", /* PRODUCT */
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"3497F694ECAB", /* SERIAL (MAC)*/
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"Configuration", /* CONFIG */
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"Interface", /* INTERFACE */
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};
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ALIGN(4)
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//FS and HS needed
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static struct usb_qualifier_descriptor dev_qualifier =
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{
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sizeof(dev_qualifier), //bLength
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USB_DESC_TYPE_DEVICEQUALIFIER, //bDescriptorType
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0x0200, //bcdUSB
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USB_CLASS_CDC, //bDeviceClass
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USB_CDC_SUBCLASS_ETH, //bDeviceSubClass
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USB_CDC_PROTOCOL_NONE, //bDeviceProtocol
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64, //bMaxPacketSize0
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0x01, //bNumConfigurations
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0,
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};
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static rt_err_t _cdc_send_notifi(ufunction_t func,ucdc_notification_code_t notifi,rt_uint16_t wValue,rt_uint16_t wLength)
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{
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static struct ucdc_management_element_notifications _notifi;
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cdc_eps_t eps;
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RT_ASSERT(func!=RT_NULL)
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eps = &((rt_ecm_eth_t)func->user_data)->eps;
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_notifi.bmRequestType = 0xA1;
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_notifi.bNotificatinCode = notifi;
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_notifi.wValue = wValue;
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_notifi.wLength = wLength;
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eps->ep_cmd->request.buffer = (void *)&_notifi;
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eps->ep_cmd->request.size = 8;
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eps->ep_cmd->request.req_type = UIO_REQUEST_WRITE;
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rt_usbd_io_request(func->device, eps->ep_cmd, &eps->ep_cmd->request);
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return RT_EOK;
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}
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static rt_err_t _ecm_set_eth_packet_filter(ufunction_t func, ureq_t setup)
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{
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rt_ecm_eth_t _ecm_eth = (rt_ecm_eth_t)func->user_data;
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dcd_ep0_send_status(func->device->dcd);
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/* send link up. */
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eth_device_linkchange(&_ecm_eth->parent, RT_TRUE);
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_cdc_send_notifi(func,UCDC_NOTIFI_NETWORK_CONNECTION,1,0);
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return RT_EOK;
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}
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/**
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* This function will handle rndis interface request.
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*
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* @param device the usb device object.
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* @param setup the setup request.
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*
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* @return RT_EOK on successful.
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*/
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static rt_err_t _interface_handler(ufunction_t func, ureq_t setup)
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{
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RT_ASSERT(func != RT_NULL);
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RT_ASSERT(setup != RT_NULL);
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switch(setup->bRequest)
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{
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case CDC_SET_ETH_PACKET_FILTER:
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_ecm_set_eth_packet_filter(func, setup);
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break;
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default:
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rt_kprintf("setup->bRequest:0x%02X",setup->bRequest);
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break;
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}
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return RT_EOK;
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}
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/**
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* This function will handle rndis bulk in endpoint request.
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*
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* @param device the usb device object.
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* @param size request size.
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*
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* @return RT_EOK.
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*/
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static rt_err_t _ep_in_handler(ufunction_t func, rt_size_t size)
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{
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rt_ecm_eth_t ecm_device = (rt_ecm_eth_t)func->user_data;
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rt_sem_release(&ecm_device->tx_buffer_free);
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return RT_EOK;
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}
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/**
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* This function will handle RNDIS bulk out endpoint request.
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*
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* @param device the usb device object.
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* @param size request size.
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*
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* @return RT_EOK.
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*/
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static rt_err_t _ep_out_handler(ufunction_t func, rt_size_t size)
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{
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rt_ecm_eth_t ecm_device = (rt_ecm_eth_t)func->user_data;
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rt_memcpy((void *)(ecm_device->rx_buffer + ecm_device->rx_offset),ecm_device->rx_pool,size);
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ecm_device->rx_offset += size;
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if(size < EP_MAXPACKET(ecm_device->eps.ep_out))
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{
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ecm_device->rx_size = ecm_device->rx_offset;
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ecm_device->rx_offset = 0;
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eth_device_ready(&ecm_device->parent);
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}else
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{
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ecm_device->eps.ep_out->request.buffer = ecm_device->eps.ep_out->buffer;
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ecm_device->eps.ep_out->request.size = EP_MAXPACKET(ecm_device->eps.ep_out);
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ecm_device->eps.ep_out->request.req_type = UIO_REQUEST_READ_BEST;
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rt_usbd_io_request(ecm_device->func->device, ecm_device->eps.ep_out, &ecm_device->eps.ep_out->request);
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}
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return RT_EOK;
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}
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static rt_err_t rt_ecm_eth_init(rt_device_t dev)
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{
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return RT_EOK;
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}
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static rt_err_t rt_ecm_eth_open(rt_device_t dev, rt_uint16_t oflag)
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{
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return RT_EOK;
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}
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static rt_err_t rt_ecm_eth_close(rt_device_t dev)
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{
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return RT_EOK;
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}
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static rt_size_t rt_ecm_eth_read(rt_device_t dev, rt_off_t pos, void* buffer, rt_size_t size)
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{
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rt_set_errno(-RT_ENOSYS);
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return 0;
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}
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static rt_size_t rt_ecm_eth_write (rt_device_t dev, rt_off_t pos, const void* buffer, rt_size_t size)
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{
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rt_set_errno(-RT_ENOSYS);
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return 0;
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}
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static rt_err_t rt_ecm_eth_control(rt_device_t dev, int cmd, void *args)
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{
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rt_ecm_eth_t ecm_eth_dev = (rt_ecm_eth_t)dev;
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switch(cmd)
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{
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case NIOCTL_GADDR:
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/* get mac address */
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if(args) rt_memcpy(args, ecm_eth_dev->dev_addr, MAX_ADDR_LEN);
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else return -RT_ERROR;
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break;
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default :
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break;
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}
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return RT_EOK;
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}
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struct pbuf *rt_ecm_eth_rx(rt_device_t dev)
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{
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struct pbuf* p = RT_NULL;
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rt_uint32_t offset = 0;
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rt_ecm_eth_t ecm_eth_dev = (rt_ecm_eth_t)dev;
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if(ecm_eth_dev->rx_size != 0)
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{
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/* allocate buffer */
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p = pbuf_alloc(PBUF_RAW, ecm_eth_dev->rx_size, PBUF_RAM);
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if (p != RT_NULL)
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{
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struct pbuf* q;
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for (q = p; q != RT_NULL; q= q->next)
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{
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/* Copy the received frame into buffer from memory pointed by the current ETHERNET DMA Rx descriptor */
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rt_memcpy(q->payload,
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(rt_uint8_t *)((ecm_eth_dev->rx_buffer) + offset),
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q->len);
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offset += q->len;
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}
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}
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}
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{
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if(ecm_eth_dev->func->device->state == USB_STATE_CONFIGURED)
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{
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ecm_eth_dev->rx_size = 0;
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ecm_eth_dev->rx_offset = 0;
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ecm_eth_dev->eps.ep_out->request.buffer = ecm_eth_dev->eps.ep_out->buffer;
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ecm_eth_dev->eps.ep_out->request.size = EP_MAXPACKET(ecm_eth_dev->eps.ep_out);
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ecm_eth_dev->eps.ep_out->request.req_type = UIO_REQUEST_READ_BEST;
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rt_usbd_io_request(ecm_eth_dev->func->device, ecm_eth_dev->eps.ep_out, &ecm_eth_dev->eps.ep_out->request);
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}
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}
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return p;
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}
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rt_err_t rt_ecm_eth_tx(rt_device_t dev, struct pbuf* p)
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{
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struct pbuf* q;
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char * pbuffer;
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rt_err_t result = RT_EOK;
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rt_ecm_eth_t ecm_eth_dev = (rt_ecm_eth_t)dev;
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if(!ecm_eth_dev->parent.link_status)
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{
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ECM_PRINTF("linkdown, drop pkg\r\n");
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return RT_EOK;
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}
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// RT_ASSERT(p->tot_len < USB_ETH_MTU);
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if(p->tot_len > USB_ETH_MTU)
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{
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ECM_PRINTF("RNDIS MTU is:%d, but the send packet size is %d\r\n",
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USB_ETH_MTU, p->tot_len);
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p->tot_len = USB_ETH_MTU;
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}
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result = rt_sem_take(&ecm_eth_dev->tx_buffer_free, RT_WAITING_FOREVER);
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if(result != RT_EOK)
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{
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return result;
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}
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pbuffer = (char *)&ecm_eth_dev->tx_buffer;
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for (q = p; q != NULL; q = q->next)
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{
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rt_memcpy(pbuffer, q->payload, q->len);
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pbuffer += q->len;
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}
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{
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if(ecm_eth_dev->func->device->state == USB_STATE_CONFIGURED)
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{
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ecm_eth_dev->eps.ep_in->request.buffer = (void *)&ecm_eth_dev->tx_buffer;
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ecm_eth_dev->eps.ep_in->request.size = p->tot_len;
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ecm_eth_dev->eps.ep_in->request.req_type = UIO_REQUEST_WRITE;
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rt_usbd_io_request(ecm_eth_dev->func->device, ecm_eth_dev->eps.ep_in, &ecm_eth_dev->eps.ep_in->request);
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}
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}
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return result;
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}
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/**
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* This function will handle RNDIS interrupt in endpoint request.
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*
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* @param device the usb device object.
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* @param size request size.
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*
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* @return RT_EOK.
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*/
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static rt_err_t _ep_cmd_handler(ufunction_t func, rt_size_t size)
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{
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return RT_EOK;
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}
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/**
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* This function will run cdc class, it will be called on handle set configuration request.
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*
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* @param device the usb device object.
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*
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* @return RT_EOK on successful.
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*/
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static rt_err_t _function_enable(ufunction_t func)
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{
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cdc_eps_t eps;
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rt_ecm_eth_t ecm_device = (rt_ecm_eth_t)func->user_data;
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eps = (cdc_eps_t)&ecm_device->eps;
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eps->ep_out->buffer = ecm_device->rx_pool;
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ecm_device->rx_size = 0;
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ecm_device->rx_offset = 0;
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eps->ep_out->request.buffer = (void *)eps->ep_out->buffer;
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eps->ep_out->request.size = EP_MAXPACKET(eps->ep_out);
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eps->ep_out->request.req_type = UIO_REQUEST_READ_BEST;
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rt_usbd_io_request(func->device, eps->ep_out, &eps->ep_out->request);
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return RT_EOK;
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}
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/**
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* This function will stop cdc class, it will be called on handle set configuration request.
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*
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* @param device the usb device object.
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*
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* @return RT_EOK on successful.
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*/
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static rt_err_t _function_disable(ufunction_t func)
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{
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eth_device_linkchange(&((rt_ecm_eth_t)func->user_data)->parent, RT_FALSE);
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return RT_EOK;
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}
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static struct ufunction_ops ops =
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{
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_function_enable,
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_function_disable,
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RT_NULL,
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};
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/**
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* This function will configure cdc descriptor.
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*
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* @param comm the communication interface number.
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* @param data the data interface number.
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*
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* @return RT_EOK on successful.
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*/
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static rt_err_t _cdc_descriptor_config(ucdc_comm_desc_t comm, rt_uint8_t cintf_nr, ucdc_data_desc_t data, rt_uint8_t dintf_nr, rt_uint8_t device_is_hs)
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{
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comm->call_mgmt_desc.data_interface = dintf_nr;
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comm->union_desc.master_interface = cintf_nr;
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comm->union_desc.slave_interface0 = dintf_nr;
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#ifdef RT_USB_DEVICE_COMPOSITE
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comm->iad_desc.bFirstInterface = cintf_nr;
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#endif
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data->ep_out_desc.wMaxPacketSize = device_is_hs ? 512 : 64;
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data->ep_in_desc.wMaxPacketSize = device_is_hs ? 512 : 64;
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return RT_EOK;
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}
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/**
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* This function will create a cdc ecm class instance.
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*
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* @param device the usb device object.
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*
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* @return RT_EOK on successful.
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*/
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ufunction_t rt_usbd_function_ecm_create(udevice_t device)
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{
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ufunction_t cdc;
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rt_ecm_eth_t _ecm_eth;
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cdc_eps_t eps;
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uintf_t intf_comm, intf_data;
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ualtsetting_t comm_setting, data_setting;
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ucdc_data_desc_t data_desc;
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ucdc_eth_desc_t comm_desc;
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/* parameter check */
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RT_ASSERT(device != RT_NULL);
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/* set usb device string description */
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rt_usbd_device_set_string(device, _ustring);
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/* create a cdc class */
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cdc = rt_usbd_function_new(device, &_dev_desc, &ops);
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rt_usbd_device_set_qualifier(device, &dev_qualifier);
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_ecm_eth= rt_malloc(sizeof(struct rt_ecm_eth));
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rt_memset(_ecm_eth, 0, sizeof(struct rt_ecm_eth));
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cdc->user_data = _ecm_eth;
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_ecm_eth->func = cdc;
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/* create a cdc class endpoints collection */
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eps = &_ecm_eth->eps;
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/* create a cdc communication interface and a cdc data interface */
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intf_comm = rt_usbd_interface_new(device, _interface_handler);
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intf_data = rt_usbd_interface_new(device, _interface_handler);
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/* create a communication alternate setting and a data alternate setting */
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comm_setting = rt_usbd_altsetting_new(sizeof(struct ucdc_eth_descriptor));
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data_setting = rt_usbd_altsetting_new(sizeof(struct ucdc_data_descriptor));
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/* config desc in alternate setting */
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rt_usbd_altsetting_config_descriptor(comm_setting, &_comm_desc,
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(rt_off_t)&((ucdc_eth_desc_t)0)->intf_desc);
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rt_usbd_altsetting_config_descriptor(data_setting, &_data_desc, 0);
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/* configure the cdc interface descriptor */
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_cdc_descriptor_config(comm_setting->desc, intf_comm->intf_num, data_setting->desc, intf_data->intf_num, device->dcd->device_is_hs);
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/* create a command endpoint */
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comm_desc = (ucdc_eth_desc_t)comm_setting->desc;
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eps->ep_cmd = rt_usbd_endpoint_new(&comm_desc->ep_desc, _ep_cmd_handler);
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/* add the command endpoint to the cdc communication interface */
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rt_usbd_altsetting_add_endpoint(comm_setting, eps->ep_cmd);
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/* add the communication alternate setting to the communication interface,
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then set default setting of the interface */
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rt_usbd_interface_add_altsetting(intf_comm, comm_setting);
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rt_usbd_set_altsetting(intf_comm, 0);
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/* add the communication interface to the cdc class */
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rt_usbd_function_add_interface(cdc, intf_comm);
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/* create a bulk in and a bulk out endpoint */
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data_desc = (ucdc_data_desc_t)data_setting->desc;
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eps->ep_out = rt_usbd_endpoint_new(&data_desc->ep_out_desc, _ep_out_handler);
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eps->ep_in = rt_usbd_endpoint_new(&data_desc->ep_in_desc, _ep_in_handler);
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/* add the bulk out and bulk in endpoints to the data alternate setting */
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rt_usbd_altsetting_add_endpoint(data_setting, eps->ep_in);
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rt_usbd_altsetting_add_endpoint(data_setting, eps->ep_out);
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/* add the data alternate setting to the data interface
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then set default setting of the interface */
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rt_usbd_interface_add_altsetting(intf_data, data_setting);
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rt_usbd_set_altsetting(intf_data, 0);
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/* add the cdc data interface to cdc class */
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rt_usbd_function_add_interface(cdc, intf_data);
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rt_sem_init(&_ecm_eth->tx_buffer_free, "ue_tx", 1, RT_IPC_FLAG_FIFO);
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/* OUI 00-00-00, only for test. */
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_ecm_eth->dev_addr[0] = 0x34;
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_ecm_eth->dev_addr[1] = 0x97;
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_ecm_eth->dev_addr[2] = 0xF6;
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/* generate random MAC. */
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_ecm_eth->dev_addr[3] = 0x94;//*(const rt_uint8_t *)(0x1fff7a10);
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_ecm_eth->dev_addr[4] = 0xEC;//*(const rt_uint8_t *)(0x1fff7a14);
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_ecm_eth->dev_addr[5] = 0xAC;//(const rt_uint8_t *)(0x1fff7a18);
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/* OUI 00-00-00, only for test. */
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_ecm_eth->host_addr[0] = 0x34;
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_ecm_eth->host_addr[1] = 0x97;
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_ecm_eth->host_addr[2] = 0xF6;
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/* generate random MAC. */
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_ecm_eth->host_addr[3] = 0x94;//*(const rt_uint8_t *)(0x1fff7a10);
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_ecm_eth->host_addr[4] = 0xEC;//*(const rt_uint8_t *)(0x1fff7a14);
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_ecm_eth->host_addr[5] = 0xAB;//*(const rt_uint8_t *)(0x1fff7a18);
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_ecm_eth->parent.parent.init = rt_ecm_eth_init;
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_ecm_eth->parent.parent.open = rt_ecm_eth_open;
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_ecm_eth->parent.parent.close = rt_ecm_eth_close;
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_ecm_eth->parent.parent.read = rt_ecm_eth_read;
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_ecm_eth->parent.parent.write = rt_ecm_eth_write;
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_ecm_eth->parent.parent.control = rt_ecm_eth_control;
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_ecm_eth->parent.parent.user_data = device;
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_ecm_eth->parent.eth_rx = rt_ecm_eth_rx;
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_ecm_eth->parent.eth_tx = rt_ecm_eth_tx;
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/* register eth device */
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eth_device_init(&_ecm_eth->parent, "u0");
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/* send link up. */
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eth_device_linkchange(&_ecm_eth->parent, RT_FALSE);
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return cdc;
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}
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