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rt-thread/components/drivers/usb/usbdevice/class/rndis.c

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/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2012-12-24 heyuanjie87 first version
* 2013-04-13 aozima update ethernet driver.
* 2013-04-26 aozima align the desc to 4byte.
* 2013-05-08 aozima pad a dummy when send MAX_PKT_SIZE.
* 2013-05-09 aozima add delay linkup feature.
* 2013-07-09 aozima support respone chain list.
* 2013-07-18 aozima re-initial respone chain list when RNDIS restart.
* 2017-11-25 ZYH fix it and add OS descriptor
* 2019-06-10 ZYH fix hot plug and delay linkup
*/
#include <rtdevice.h>
#ifdef RT_USB_DEVICE_RNDIS
#include "cdc.h"
#include "rndis.h"
#include "ndis.h"
/* define RNDIS_DELAY_LINK_UP by menuconfig for delay linkup */
#define DBG_LEVEL DBG_WARNING
#define DBG_SECTION_NAME "RNDIS"
#include <rtdbg.h>
#define RNDIS_INTF_STR_INDEX 12
/* RT-Thread LWIP ethernet interface */
#include <netif/ethernetif.h>
struct rt_rndis_response
{
struct rt_list_node list;
const void * buffer;
};
#define MAX_ADDR_LEN 6
struct rt_rndis_eth
{
/* inherit from ethernet device */
struct eth_device parent;
struct ufunction *func;
/* interface address info */
rt_uint8_t host_addr[MAX_ADDR_LEN];
rt_uint8_t dev_addr[MAX_ADDR_LEN];
#ifdef RNDIS_DELAY_LINK_UP
struct rt_timer timer;
#endif /* RNDIS_DELAY_LINK_UP */
ALIGN(4)
rt_uint8_t rx_pool[512];
ALIGN(4)
rt_uint8_t tx_pool[512];
rt_uint32_t cmd_pool[2];
ALIGN(4)
char rx_buffer[sizeof(struct rndis_packet_msg) + USB_ETH_MTU + 14];
rt_size_t rx_offset;
rt_size_t rx_length;
rt_bool_t rx_flag;
rt_bool_t rx_frist;
ALIGN(4)
char tx_buffer[sizeof(struct rndis_packet_msg) + USB_ETH_MTU + 14];
struct rt_semaphore tx_buffer_free;
struct rt_list_node response_list;
rt_bool_t need_notify;
struct cdc_eps eps;
};
typedef struct rt_rndis_eth * rt_rndis_eth_t;
static rt_uint32_t oid_packet_filter = 0x0000000;
ALIGN(4)
static struct udevice_descriptor _dev_desc =
{
USB_DESC_LENGTH_DEVICE, /* bLength */
USB_DESC_TYPE_DEVICE, /* type */
USB_BCD_VERSION, /* bcdUSB */
0xEF, /* bDeviceClass */
0x04, /* bDeviceSubClass */
0x01, /* bDeviceProtocol */
USB_CDC_BUFSIZE, /* bMaxPacketSize0 */
_VENDOR_ID, /* idVendor */
_PRODUCT_ID, /* idProduct */
USB_BCD_DEVICE, /* bcdDevice */
USB_STRING_MANU_INDEX, /* iManufacturer */
USB_STRING_PRODUCT_INDEX, /* iProduct */
USB_STRING_SERIAL_INDEX, /* iSerialNumber */
USB_DYNAMIC /* bNumConfigurations */
};
/* communcation interface descriptor */
ALIGN(4)
const static struct ucdc_comm_descriptor _comm_desc =
{
#ifdef RT_USB_DEVICE_COMPOSITE
/* Interface Association Descriptor */
{
USB_DESC_LENGTH_IAD,
USB_DESC_TYPE_IAD,
USB_DYNAMIC,
0x02,
USB_CDC_CLASS_COMM,
USB_CDC_SUBCLASS_ACM,
USB_CDC_PROTOCOL_VENDOR,
0x00,
},
#endif
/* Interface Descriptor */
{
USB_DESC_LENGTH_INTERFACE,
USB_DESC_TYPE_INTERFACE,
USB_DYNAMIC,
0x00,
0x01,
USB_CDC_CLASS_COMM,
USB_CDC_SUBCLASS_ACM,
USB_CDC_PROTOCOL_VENDOR,
#ifdef RT_USB_DEVICE_COMPOSITE
RNDIS_INTF_STR_INDEX,
#else
0x00,
#endif
},
/* Header Functional Descriptor */
{
0x05,
USB_CDC_CS_INTERFACE,
USB_CDC_SCS_HEADER,
0x0110,
},
/* Call Management Functional Descriptor */
{
0x05,
USB_CDC_CS_INTERFACE,
USB_CDC_SCS_CALL_MGMT,
0x00,
USB_DYNAMIC,
},
/* Abstract Control Management Functional Descriptor */
{
0x04,
USB_CDC_CS_INTERFACE,
USB_CDC_SCS_ACM,
0x02,
},
/* Union Functional Descriptor */
{
0x05,
USB_CDC_CS_INTERFACE,
USB_CDC_SCS_UNION,
USB_DYNAMIC,
USB_DYNAMIC,
},
/* Endpoint Descriptor */
{
USB_DESC_LENGTH_ENDPOINT,
USB_DESC_TYPE_ENDPOINT,
USB_DIR_IN | USB_DYNAMIC,
USB_EP_ATTR_INT,
0x08,
0x0A,
},
};
/* data interface descriptor */
ALIGN(4)
const static struct ucdc_data_descriptor _data_desc =
{
/* interface descriptor */
{
USB_DESC_LENGTH_INTERFACE,
USB_DESC_TYPE_INTERFACE,
USB_DYNAMIC,
0x00,
0x02,
USB_CDC_CLASS_DATA,
0x00,
0x00,
0x00,
},
/* endpoint, bulk out */
{
USB_DESC_LENGTH_ENDPOINT,
USB_DESC_TYPE_ENDPOINT,
USB_DIR_OUT | USB_DYNAMIC,
USB_EP_ATTR_BULK,
USB_DYNAMIC,
0x00,
},
/* endpoint, bulk in */
{
USB_DESC_LENGTH_ENDPOINT,
USB_DESC_TYPE_ENDPOINT,
USB_DYNAMIC | USB_DIR_IN,
USB_EP_ATTR_BULK,
USB_DYNAMIC,
0x00,
},
};
ALIGN(4)
const static char* _ustring[] =
{
"Language", /* LANGID */
"RT-Thread Team.", /* MANU */
"RT-Thread RNDIS device", /* PRODUCT */
"1.1.0", /* SERIAL */
"Configuration", /* CONFIG */
"Interface", /* INTERFACE */
USB_STRING_OS
};
ALIGN(4)
struct usb_os_function_comp_id_descriptor rndis_func_comp_id_desc =
{
.bFirstInterfaceNumber = USB_DYNAMIC,
.reserved1 = 0x01,
.compatibleID = {'R', 'N', 'D', 'I', 'S', 0x00, 0x00, 0x00},
.subCompatibleID = {'5', '1', '6', '2', '0', '0', '1', 0x00},
.reserved2 = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
};
//FS and HS needed
ALIGN(4)
static struct usb_qualifier_descriptor dev_qualifier =
{
sizeof(dev_qualifier), //bLength
USB_DESC_TYPE_DEVICEQUALIFIER, //bDescriptorType
0x0200, //bcdUSB
USB_CLASS_CDC, //bDeviceClass
USB_CDC_SUBCLASS_ACM, //bDeviceSubClass
USB_CDC_PROTOCOL_VENDOR, //bDeviceProtocol
64, //bMaxPacketSize0
0x01, //bNumConfigurations
0,
};
/* supported OIDs */
ALIGN(4)
const static rt_uint32_t oid_supported_list[] =
{
/* General OIDs */
OID_GEN_SUPPORTED_LIST,
OID_GEN_HARDWARE_STATUS,
OID_GEN_MEDIA_SUPPORTED,
OID_GEN_MEDIA_IN_USE,
OID_GEN_MAXIMUM_FRAME_SIZE,
OID_GEN_LINK_SPEED,
OID_GEN_TRANSMIT_BLOCK_SIZE,
OID_GEN_RECEIVE_BLOCK_SIZE,
OID_GEN_VENDOR_ID,
OID_GEN_VENDOR_DESCRIPTION,
OID_GEN_VENDOR_DRIVER_VERSION,
OID_GEN_CURRENT_PACKET_FILTER,
OID_GEN_MAXIMUM_TOTAL_SIZE,
OID_GEN_MEDIA_CONNECT_STATUS,
OID_GEN_PHYSICAL_MEDIUM,
/* General Statistic OIDs */
OID_GEN_XMIT_OK,
OID_GEN_RCV_OK,
OID_GEN_XMIT_ERROR,
OID_GEN_RCV_ERROR,
OID_GEN_RCV_NO_BUFFER,
/* Please configure us */
OID_GEN_RNDIS_CONFIG_PARAMETER,
/* 802.3 OIDs */
OID_802_3_PERMANENT_ADDRESS,
OID_802_3_CURRENT_ADDRESS,
OID_802_3_MULTICAST_LIST,
OID_802_3_MAXIMUM_LIST_SIZE,
/* 802.3 Statistic OIDs */
OID_802_3_RCV_ERROR_ALIGNMENT,
OID_802_3_XMIT_ONE_COLLISION,
OID_802_3_XMIT_MORE_COLLISIONS,
OID_802_3_MAC_OPTIONS,
};
static rt_uint8_t rndis_message_buffer[RNDIS_MESSAGE_BUFFER_SIZE];
static void _rndis_response_available(ufunction_t func)
{
rt_rndis_eth_t device = (rt_rndis_eth_t)func->user_data;
rt_uint32_t * data;
if(device->need_notify == RT_TRUE)
{
device->need_notify = RT_FALSE;
data = (rt_uint32_t *)device->eps.ep_cmd->buffer;
data[0] = RESPONSE_AVAILABLE;
data[1] = 0;
device->eps.ep_cmd->request.buffer = device->eps.ep_cmd->buffer;
device->eps.ep_cmd->request.size = 8;
device->eps.ep_cmd->request.req_type = UIO_REQUEST_WRITE;
rt_usbd_io_request(func->device, device->eps.ep_cmd, &device->eps.ep_cmd->request);
}
}
static rt_err_t _rndis_init_response(ufunction_t func, rndis_init_msg_t msg)
{
rndis_init_cmplt_t resp;
struct rt_rndis_response * response;
response = rt_malloc(sizeof(struct rt_rndis_response));
resp = rt_malloc(sizeof(struct rndis_init_cmplt));
if( (response == RT_NULL) || (resp == RT_NULL) )
{
LOG_E("%s,%d: no memory!", __func__, __LINE__);
if(response != RT_NULL)
rt_free(response);
if(resp != RT_NULL)
rt_free(resp);
return -RT_ENOMEM;
}
resp->RequestId = msg->RequestId;
resp->MessageType = REMOTE_NDIS_INITIALIZE_CMPLT;
resp->MessageLength = sizeof(struct rndis_init_cmplt);
resp->MajorVersion = RNDIS_MAJOR_VERSION;
resp->MinorVersion = RNDIS_MAJOR_VERSION;
resp->Status = RNDIS_STATUS_SUCCESS;
resp->DeviceFlags = RNDIS_DF_CONNECTIONLESS;
resp->Medium = RNDIS_MEDIUM_802_3;
resp->MaxPacketsPerTransfer = 1;
resp->MaxTransferSize = USB_ETH_MTU + 58; /* Space for 1280 IP buffer, Ethernet Header,
RNDIS messages */
resp->PacketAlignmentFactor = 3;
resp->AfListOffset = 0;
resp->AfListSize = 0;
response->buffer = resp;
{
rt_base_t level = rt_hw_interrupt_disable();
rt_list_insert_before(&((rt_rndis_eth_t)func->user_data)->response_list, &response->list);
rt_hw_interrupt_enable(level);
}
return RT_EOK;
}
static rndis_query_cmplt_t _create_resp(rt_size_t size)
{
rndis_query_cmplt_t resp;
resp = rt_malloc(sizeof(struct rndis_query_cmplt) + size);
if(resp == RT_NULL)
{
LOG_E("%s,%d: no memory!", __func__, __LINE__);
return RT_NULL;
}
resp->InformationBufferLength = size;
return resp;
}
static void _copy_resp(rndis_query_cmplt_t resp, const void * buffer)
{
char * resp_buffer = (char *)resp + sizeof(struct rndis_query_cmplt);
memcpy(resp_buffer, buffer, resp->InformationBufferLength);
}
static void _set_resp(rndis_query_cmplt_t resp, rt_uint32_t value)
{
rt_uint32_t * response = (rt_uint32_t *)((char *)resp + sizeof(struct rndis_query_cmplt));
*response = value;
}
static rt_err_t _rndis_query_response(ufunction_t func,rndis_query_msg_t msg)
{
rndis_query_cmplt_t resp = RT_NULL;
struct rt_rndis_response * response;
rt_err_t ret = RT_EOK;
switch (msg->Oid)
{
/*
* general OIDs
*/
case OID_GEN_SUPPORTED_LIST:
resp = _create_resp(sizeof(oid_supported_list));
if(resp == RT_NULL) break;
_copy_resp(resp, oid_supported_list);
break;
case OID_GEN_PHYSICAL_MEDIUM:
resp = _create_resp(4);
if(resp == RT_NULL) break;
_set_resp(resp, NDIS_MEDIUM_802_3);
break;
case OID_GEN_MAXIMUM_FRAME_SIZE:
case OID_GEN_TRANSMIT_BLOCK_SIZE:
case OID_GEN_RECEIVE_BLOCK_SIZE:
resp = _create_resp(4);
if(resp == RT_NULL) break;
_set_resp(resp, USB_ETH_MTU);
break;
case OID_GEN_MAXIMUM_TOTAL_SIZE:
resp = _create_resp(4);
if(resp == RT_NULL) break;
_set_resp(resp, USB_ETH_MTU + RNDIS_MESSAGE_BUFFER_SIZE);
break;
case OID_GEN_LINK_SPEED:
resp = _create_resp(4);
if(resp == RT_NULL) break;
_set_resp(resp, (func->device->dcd->device_is_hs ? (480UL * 1000 *1000) : (12UL * 1000 * 1000)) / 100);
break;
case OID_GEN_MEDIA_CONNECT_STATUS:
/* link_status */
resp = _create_resp(4);
if(resp == RT_NULL) break;
#ifdef RNDIS_DELAY_LINK_UP
if(((rt_rndis_eth_t)func->user_data)->parent.link_status)
{
_set_resp(resp, NDIS_MEDIA_STATE_CONNECTED);
}
else
{
_set_resp(resp, NDIS_MEDIA_STATE_DISCONNECTED);
}
#else
_set_resp(resp, NDIS_MEDIA_STATE_CONNECTED);
#endif /* RNDIS_DELAY_LINK_UP */
break;
case OID_GEN_VENDOR_ID:
resp = _create_resp(4);
if(resp == RT_NULL) break;
_set_resp(resp, 0x12345678); /* only for test */
break;
case OID_GEN_VENDOR_DESCRIPTION:
{
const char vendor_desc[] = "RT-Thread RNDIS";
resp = _create_resp(sizeof(vendor_desc));
if(resp == RT_NULL) break;
_copy_resp(resp, vendor_desc);
}
break;
case OID_GEN_VENDOR_DRIVER_VERSION:
resp = _create_resp(4);
if(resp == RT_NULL) break;
_set_resp(resp, 0x0000200);
break;
/* statistics OIDs */
case OID_GEN_XMIT_OK:
case OID_GEN_RCV_OK:
resp = _create_resp(4);
if(resp == RT_NULL) break;
_set_resp(resp, 1);
break;
case OID_GEN_XMIT_ERROR:
case OID_GEN_RCV_ERROR:
case OID_GEN_RCV_NO_BUFFER:
resp = _create_resp(4);
if(resp == RT_NULL) break;
_set_resp(resp, 0);
break;
/*
* ieee802.3 OIDs
*/
case OID_802_3_MAXIMUM_LIST_SIZE:
resp = _create_resp(4);
if(resp == RT_NULL) break;
_set_resp(resp, 1);
break;
case OID_802_3_PERMANENT_ADDRESS:
case OID_802_3_CURRENT_ADDRESS:
resp = _create_resp(sizeof(((rt_rndis_eth_t)func->user_data)->host_addr));
if(resp == RT_NULL) break;
_copy_resp(resp, ((rt_rndis_eth_t)func->user_data)->host_addr);
break;
case OID_802_3_MULTICAST_LIST:
resp = _create_resp(4);
if(resp == RT_NULL) break;
_set_resp(resp, 0xE000000);
break;
case OID_802_3_MAC_OPTIONS:
resp = _create_resp(4);
if(resp == RT_NULL) break;
_set_resp(resp, 0);
break;
default:
LOG_W("Not support OID %X", msg->Oid);
ret = -RT_ERROR;
break;
}
response = rt_malloc(sizeof(struct rt_rndis_response));
if( (response == RT_NULL) || (resp == RT_NULL) )
{
LOG_E("%s,%d: no memory!", __func__, __LINE__);
if(response != RT_NULL)
rt_free(response);
if(resp != RT_NULL)
rt_free(resp);
return -RT_ENOMEM;
}
resp->RequestId = msg->RequestId;
resp->MessageType = REMOTE_NDIS_QUERY_CMPLT;
resp->InformationBufferOffset = 16;
resp->Status = RNDIS_STATUS_SUCCESS;
resp->MessageLength = sizeof(struct rndis_query_cmplt) + resp->InformationBufferLength;
response->buffer = resp;
{
rt_base_t level = rt_hw_interrupt_disable();
rt_list_insert_before(&((rt_rndis_eth_t)func->user_data)->response_list, &response->list);
rt_hw_interrupt_enable(level);
}
return ret;
}
static rt_err_t _rndis_set_response(ufunction_t func,rndis_set_msg_t msg)
{
rndis_set_cmplt_t resp;
struct rt_rndis_response * response;
response = rt_malloc(sizeof(struct rt_rndis_response));
resp = rt_malloc(sizeof(struct rndis_set_cmplt));
if( (response == RT_NULL) || (resp == RT_NULL) )
{
LOG_E("%s,%d: no memory!", __func__, __LINE__);
if(response != RT_NULL)
rt_free(response);
if(resp != RT_NULL)
rt_free(resp);
return -RT_ENOMEM;
}
resp->RequestId = msg->RequestId;
resp->MessageType = REMOTE_NDIS_SET_CMPLT;
resp->MessageLength = sizeof(struct rndis_set_cmplt);
switch (msg->Oid)
{
case OID_GEN_CURRENT_PACKET_FILTER:
oid_packet_filter = *((rt_uint32_t *)((rt_uint8_t *)&(msg->RequestId) + \
msg->InformationBufferOffset));
/* TODO: make complier happy */
oid_packet_filter = oid_packet_filter;
LOG_D("OID_GEN_CURRENT_PACKET_FILTER");
#ifdef RNDIS_DELAY_LINK_UP
/* link up. */
rt_timer_start(&((rt_rndis_eth_t)func->user_data)->timer);
#else
eth_device_linkchange(&((rt_rndis_eth_t)func->user_data)->parent, RT_TRUE);
#endif /* RNDIS_DELAY_LINK_UP */
break;
case OID_802_3_MULTICAST_LIST:
break;
default:
LOG_W("Unknow rndis set 0x%02X", msg->Oid);
resp->Status = RNDIS_STATUS_FAILURE;
return RT_EOK;
}
resp->Status = RNDIS_STATUS_SUCCESS;
response->buffer = resp;
{
rt_base_t level = rt_hw_interrupt_disable();
rt_list_insert_before(&((rt_rndis_eth_t)func->user_data)->response_list, &response->list);
rt_hw_interrupt_enable(level);
}
return RT_EOK;
}
static rt_err_t _rndis_reset_response(ufunction_t func,rndis_set_msg_t msg)
{
struct rndis_reset_cmplt * resp;
struct rt_rndis_response * response;
response = rt_malloc(sizeof(struct rt_rndis_response));
resp = rt_malloc(sizeof(struct rndis_reset_cmplt));
if( (response == RT_NULL) || (resp == RT_NULL) )
{
LOG_E("%s,%d: no memory!", __func__, __LINE__);
if(response != RT_NULL)
rt_free(response);
if(resp != RT_NULL)
rt_free(resp);
return -RT_ENOMEM;
}
/* reset packet filter */
oid_packet_filter = 0x0000000;
/* link down eth */
eth_device_linkchange(&((rt_rndis_eth_t)func->user_data)->parent, RT_FALSE);
/* reset eth rx tx */
((rt_rndis_eth_t)func->user_data)->rx_frist = RT_TRUE;
((rt_rndis_eth_t)func->user_data)->rx_flag = RT_FALSE;
resp->MessageType = REMOTE_NDIS_RESET_CMPLT;
resp->MessageLength = sizeof(struct rndis_reset_cmplt);
resp->Status = RNDIS_STATUS_SUCCESS;
resp->AddressingReset = 1;
response->buffer = resp;
{
rt_base_t level = rt_hw_interrupt_disable();
rt_list_insert_before(&((rt_rndis_eth_t)func->user_data)->response_list, &response->list);
rt_hw_interrupt_enable(level);
}
return RT_EOK;
}
static rt_err_t _rndis_keepalive_response(ufunction_t func,rndis_keepalive_msg_t msg)
{
rndis_keepalive_cmplt_t resp;
struct rt_rndis_response * response;
response = rt_malloc(sizeof(struct rt_rndis_response));
resp = rt_malloc(sizeof(struct rndis_keepalive_cmplt));
if( (response == RT_NULL) || (resp == RT_NULL) )
{
LOG_E("%s,%d: no memory!", __func__, __LINE__);
if(response != RT_NULL)
rt_free(response);
if(resp != RT_NULL)
rt_free(resp);
return -RT_ENOMEM;
}
resp->MessageType = REMOTE_NDIS_KEEPALIVE_CMPLT;
resp->MessageLength = sizeof(struct rndis_keepalive_cmplt);
resp->Status = RNDIS_STATUS_SUCCESS;
response->buffer = resp;
{
rt_base_t level = rt_hw_interrupt_disable();
rt_list_insert_before(&((rt_rndis_eth_t)func->user_data)->response_list, &response->list);
rt_hw_interrupt_enable(level);
}
return RT_EOK;
}
static rt_err_t _rndis_msg_parser(ufunction_t func, rt_uint8_t *msg)
{
rt_err_t ret = -RT_ERROR;
switch (((rndis_gen_msg_t) msg)->MessageType)
{
case REMOTE_NDIS_INITIALIZE_MSG:
LOG_D("REMOTE_NDIS_INITIALIZE_MSG");
ret = _rndis_init_response(func, (rndis_init_msg_t) msg);
break;
case REMOTE_NDIS_HALT_MSG:
LOG_D("REMOTE_NDIS_HALT_MSG");
/* link down. */
eth_device_linkchange(&((rt_rndis_eth_t)func->user_data)->parent, RT_FALSE);
/* reset eth rx tx */
((rt_rndis_eth_t)func->user_data)->rx_frist = RT_TRUE;
((rt_rndis_eth_t)func->user_data)->rx_flag = RT_FALSE;
break;
case REMOTE_NDIS_QUERY_MSG:
LOG_D("REMOTE_NDIS_QUERY_MSG");
ret = _rndis_query_response(func,(rndis_query_msg_t) msg);
break;
case REMOTE_NDIS_SET_MSG:
LOG_D("REMOTE_NDIS_SET_MSG");
ret = _rndis_set_response(func,(rndis_set_msg_t) msg);
break;
case REMOTE_NDIS_RESET_MSG:
LOG_D("REMOTE_NDIS_RESET_MSG");
ret = _rndis_reset_response(func,(rndis_set_msg_t) msg);
break;
case REMOTE_NDIS_KEEPALIVE_MSG:
LOG_D("REMOTE_NDIS_KEEPALIVE_MSG");
ret = _rndis_keepalive_response(func,(rndis_keepalive_msg_t) msg);
break;
default:
LOG_W("not support RNDIS msg %X", ((rndis_gen_msg_t) msg)->MessageType);
ret = -RT_ERROR;
break;
}
if (ret == RT_EOK)
_rndis_response_available(func);
return ret;
}
static ufunction_t function = RT_NULL;
static rt_err_t send_encapsulated_command_done(udevice_t device, rt_size_t size)
{
if(function != RT_NULL)
{
dcd_ep0_send_status(device->dcd);
_rndis_msg_parser(function, rndis_message_buffer);
function = RT_NULL;
}
return RT_EOK;
}
//#error here have bug ep 0x82 send failed
static rt_err_t _rndis_send_encapsulated_command(ufunction_t func, ureq_t setup)
{
RT_ASSERT(setup->wLength <= sizeof(rndis_message_buffer));
function = func;
rt_usbd_ep0_read(func->device,rndis_message_buffer,setup->wLength,send_encapsulated_command_done);
return RT_EOK;
}
static rt_err_t _rndis_get_encapsulated_response(ufunction_t func, ureq_t setup)
{
rndis_gen_msg_t msg;
struct rt_rndis_response * response;
if(rt_list_isempty(&((rt_rndis_eth_t)func->user_data)->response_list))
{
LOG_D("response_list is empty!");
((rt_rndis_eth_t)func->user_data)->need_notify = RT_TRUE;
return RT_EOK;
}
response = (struct rt_rndis_response *)((rt_rndis_eth_t)func->user_data)->response_list.next;
msg = (rndis_gen_msg_t)response->buffer;
rt_usbd_ep0_write(func->device, (void*)msg, msg->MessageLength);
{
rt_base_t level = rt_hw_interrupt_disable();
rt_list_remove(&response->list);
rt_hw_interrupt_enable(level);
}
rt_free((void *)response->buffer);
rt_free(response);
if(!rt_list_isempty(&((rt_rndis_eth_t)func->user_data)->response_list))
{
rt_uint32_t * data;
LOG_I("auto append next response!");
data = (rt_uint32_t *)((rt_rndis_eth_t)func->user_data)->eps.ep_cmd->buffer;
data[0] = RESPONSE_AVAILABLE;
data[1] = 0;
((rt_rndis_eth_t)func->user_data)->eps.ep_cmd->request.buffer = ((rt_rndis_eth_t)func->user_data)->eps.ep_cmd->buffer;
((rt_rndis_eth_t)func->user_data)->eps.ep_cmd->request.size = 8;
((rt_rndis_eth_t)func->user_data)->eps.ep_cmd->request.req_type = UIO_REQUEST_WRITE;
rt_usbd_io_request(func->device, ((rt_rndis_eth_t)func->user_data)->eps.ep_cmd, &((rt_rndis_eth_t)func->user_data)->eps.ep_cmd->request);
}
else
{
((rt_rndis_eth_t)func->user_data)->need_notify = RT_TRUE;
}
return RT_EOK;
}
/**
* This function will handle rndis interface request.
*
* @param device the usb device object.
* @param setup the setup request.
*
* @return RT_EOK on successful.
*/
static rt_err_t _interface_handler(ufunction_t func, ureq_t setup)
{
RT_ASSERT(func != RT_NULL);
RT_ASSERT(setup != RT_NULL);
switch(setup->bRequest)
{
case CDC_SEND_ENCAPSULATED_COMMAND:
_rndis_send_encapsulated_command(func, setup);
break;
case CDC_GET_ENCAPSULATED_RESPONSE:
_rndis_get_encapsulated_response(func, setup);
break;
default:
LOG_W("unkown setup->request 0x%02X !", setup->bRequest);
break;
}
return RT_EOK;
}
/**
* This function will handle rndis bulk in endpoint request.
*
* @param device the usb device object.
* @param size request size.
*
* @return RT_EOK.
*/
static rt_err_t _ep_in_handler(ufunction_t func, rt_size_t size)
{
rt_sem_release(&((rt_rndis_eth_t)func->user_data)->tx_buffer_free);
return RT_EOK;
}
/**
* This function will handle RNDIS bulk out endpoint request.
*
* @param device the usb device object.
* @param size request size.
*
* @return RT_EOK.
*/
static rt_err_t _ep_out_handler(ufunction_t func, rt_size_t size)
{
cdc_eps_t eps;
char* data = RT_NULL;
eps = (cdc_eps_t)&((rt_rndis_eth_t)func->user_data)->eps;
data = (char*)eps->ep_out->buffer;
if(((rt_rndis_eth_t)func->user_data)->rx_frist == RT_TRUE)
{
rndis_packet_msg_t msg = (rndis_packet_msg_t)data;
((rt_rndis_eth_t)func->user_data)->rx_length = msg->DataLength;
((rt_rndis_eth_t)func->user_data)->rx_offset = 0;
if (size >= 44)
{
data += sizeof(struct rndis_packet_msg);
size -= sizeof(struct rndis_packet_msg);
((rt_rndis_eth_t)func->user_data)->rx_frist = RT_FALSE;
memcpy(&((rt_rndis_eth_t)func->user_data)->rx_buffer[((rt_rndis_eth_t)func->user_data)->rx_offset], data, size);
((rt_rndis_eth_t)func->user_data)->rx_offset += size;
}
}
else
{
memcpy(&((rt_rndis_eth_t)func->user_data)->rx_buffer[((rt_rndis_eth_t)func->user_data)->rx_offset], data, size);
((rt_rndis_eth_t)func->user_data)->rx_offset += size;
}
if(((rt_rndis_eth_t)func->user_data)->rx_offset >= ((rt_rndis_eth_t)func->user_data)->rx_length)
{
((rt_rndis_eth_t)func->user_data)->rx_frist = RT_TRUE;
((rt_rndis_eth_t)func->user_data)->rx_flag = RT_TRUE;
eth_device_ready(&(((rt_rndis_eth_t)func->user_data)->parent));
}
else
{
eps->ep_out->request.buffer = eps->ep_out->buffer;
eps->ep_out->request.size = EP_MAXPACKET(eps->ep_out);
eps->ep_out->request.req_type = UIO_REQUEST_READ_BEST;
rt_usbd_io_request(func->device, eps->ep_out, &eps->ep_out->request);
}
return RT_EOK;
}
/**
* This function will handle RNDIS interrupt in endpoint request.
*
* @param device the usb device object.
* @param size request size.
*
* @return RT_EOK.
*/
static rt_err_t _ep_cmd_handler(ufunction_t func, rt_size_t size)
{
// _rndis_response_available(func);
return RT_EOK;
}
/**
* This function will run cdc class, it will be called on handle set configuration request.
*
* @param device the usb device object.
*
* @return RT_EOK on successful.
*/
static rt_err_t _function_enable(ufunction_t func)
{
cdc_eps_t eps;
LOG_I("plugged in");
eps = (cdc_eps_t)&((rt_rndis_eth_t)func->user_data)->eps;
eps->ep_in->buffer = ((rt_rndis_eth_t)func->user_data)->tx_pool;
eps->ep_out->buffer = ((rt_rndis_eth_t)func->user_data)->rx_pool;
eps->ep_cmd->buffer = (rt_uint8_t*)((rt_rndis_eth_t)func->user_data)->cmd_pool;
eps->ep_out->request.buffer = eps->ep_out->buffer;
eps->ep_out->request.size = EP_MAXPACKET(eps->ep_out);
eps->ep_out->request.req_type = UIO_REQUEST_READ_BEST;
rt_usbd_io_request(func->device, eps->ep_out, &eps->ep_out->request);
((rt_rndis_eth_t)func->user_data)->rx_flag = RT_FALSE;
((rt_rndis_eth_t)func->user_data)->rx_frist = RT_TRUE;
// eth_device_ready(&(((rt_rndis_eth_t)func->user_data)->parent));
#ifdef RNDIS_DELAY_LINK_UP
/* stop link up timer. */
rt_timer_stop(&((rt_rndis_eth_t)func->user_data)->timer);
#endif /* RNDIS_DELAY_LINK_UP */
/* clean resp chain list. */
{
struct rt_rndis_response * response;
rt_base_t level = rt_hw_interrupt_disable();
while(!rt_list_isempty(&((rt_rndis_eth_t)func->user_data)->response_list))
{
response = (struct rt_rndis_response *)((rt_rndis_eth_t)func->user_data)->response_list.next;
rt_list_remove(&response->list);
rt_free((void *)response->buffer);
rt_free(response);
}
((rt_rndis_eth_t)func->user_data)->need_notify = RT_TRUE;
rt_hw_interrupt_enable(level);
}
return RT_EOK;
}
/**
* This function will stop cdc class, it will be called on handle set configuration request.
*
* @param device the usb device object.
*
* @return RT_EOK on successful.
*/
static rt_err_t _function_disable(ufunction_t func)
{
LOG_I("plugged out");
#ifdef RNDIS_DELAY_LINK_UP
/* stop link up timer. */
rt_timer_stop(&((rt_rndis_eth_t)func->user_data)->timer);
#endif /* RNDIS_DELAY_LINK_UP */
/* clean resp chain list. */
{
struct rt_rndis_response * response;
rt_base_t level = rt_hw_interrupt_disable();
while(!rt_list_isempty(&((rt_rndis_eth_t)func->user_data)->response_list))
{
response = (struct rt_rndis_response *)((rt_rndis_eth_t)func->user_data)->response_list.next;
LOG_D("remove resp chain list!");
rt_list_remove(&response->list);
rt_free((void *)response->buffer);
rt_free(response);
}
((rt_rndis_eth_t)func->user_data)->need_notify = RT_TRUE;
rt_hw_interrupt_enable(level);
}
/* link down. */
eth_device_linkchange(&((rt_rndis_eth_t)func->user_data)->parent, RT_FALSE);
/* reset eth rx tx */
((rt_rndis_eth_t)func->user_data)->rx_frist = RT_TRUE;
((rt_rndis_eth_t)func->user_data)->rx_flag = RT_FALSE;
return RT_EOK;
}
static struct ufunction_ops ops =
{
_function_enable,
_function_disable,
RT_NULL,
};
/**
* This function will configure cdc descriptor.
*
* @param comm the communication interface number.
* @param data the data interface number.
*
* @return RT_EOK on successful.
*/
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)
{
comm->call_mgmt_desc.data_interface = dintf_nr;
comm->union_desc.master_interface = cintf_nr;
comm->union_desc.slave_interface0 = dintf_nr;
#ifdef RT_USB_DEVICE_COMPOSITE
comm->iad_desc.bFirstInterface = cintf_nr;
#endif
data->ep_out_desc.wMaxPacketSize = device_is_hs ? 512 : 64;
data->ep_in_desc.wMaxPacketSize = device_is_hs ? 512 : 64;
return RT_EOK;
}
#ifdef RT_USING_LWIP
/* initialize the interface */
static rt_err_t rt_rndis_eth_init(rt_device_t dev)
{
return RT_EOK;
}
static rt_err_t rt_rndis_eth_open(rt_device_t dev, rt_uint16_t oflag)
{
return RT_EOK;
}
static rt_err_t rt_rndis_eth_close(rt_device_t dev)
{
return RT_EOK;
}
static rt_size_t rt_rndis_eth_read(rt_device_t dev, rt_off_t pos, void* buffer, rt_size_t size)
{
rt_set_errno(-RT_ENOSYS);
return 0;
}
static rt_size_t rt_rndis_eth_write (rt_device_t dev, rt_off_t pos, const void* buffer, rt_size_t size)
{
rt_set_errno(-RT_ENOSYS);
return 0;
}
static rt_err_t rt_rndis_eth_control(rt_device_t dev, int cmd, void *args)
{
rt_rndis_eth_t rndis_eth_dev = (rt_rndis_eth_t)dev;
switch(cmd)
{
case NIOCTL_GADDR:
/* get mac address */
if(args) rt_memcpy(args, rndis_eth_dev->dev_addr, MAX_ADDR_LEN);
else return -RT_ERROR;
break;
default :
break;
}
return RT_EOK;
}
/* ethernet device interface */
/* reception packet. */
struct pbuf *rt_rndis_eth_rx(rt_device_t dev)
{
struct pbuf* p = RT_NULL;
rt_uint32_t offset = 0;
rt_rndis_eth_t device = (rt_rndis_eth_t)dev;
if(device->rx_flag == RT_FALSE)
{
return p;
}
if(device->rx_length != 0)
{
/* allocate buffer */
p = pbuf_alloc(PBUF_LINK, device->rx_length, PBUF_RAM);
if (p != RT_NULL)
{
struct pbuf* q;
for (q = p; q != RT_NULL; q= q->next)
{
/* Copy the received frame into buffer from memory pointed by the current ETHERNET DMA Rx descriptor */
memcpy(q->payload,
(rt_uint8_t *)((device->rx_buffer) + offset),
q->len);
offset += q->len;
}
}
}
{
device->rx_flag = RT_FALSE;
device->eps.ep_out->request.buffer = device->eps.ep_out->buffer;
device->eps.ep_out->request.size = EP_MAXPACKET(device->eps.ep_out);
device->eps.ep_out->request.req_type = UIO_REQUEST_READ_BEST;
rt_usbd_io_request(device->func->device, device->eps.ep_out, &device->eps.ep_out->request);
}
return p;
}
/* transmit packet. */
rt_err_t rt_rndis_eth_tx(rt_device_t dev, struct pbuf* p)
{
struct pbuf* q;
char * buffer;
rt_err_t result = RT_EOK;
rt_rndis_eth_t device = (rt_rndis_eth_t)dev;
if(!device->parent.link_status)
{
LOG_I("linkdown, drop pkg");
return RT_EOK;
}
//RT_ASSERT(p->tot_len < sizeof(device->tx_buffer));
if(p->tot_len > sizeof(device->tx_buffer))
{
LOG_W("RNDIS MTU is:%d, but the send packet size is %d",
sizeof(device->tx_buffer), p->tot_len);
p->tot_len = sizeof(device->tx_buffer);
}
/* wait for buffer free. */
result = rt_sem_take(&device->tx_buffer_free, rt_tick_from_millisecond(1000));
if(result != RT_EOK)
{
LOG_W("wait for buffer free timeout");
/* if cost 1s to wait send done it said that connection is close . drop it */
rt_sem_release(&device->tx_buffer_free);
return result;
}
buffer = (char *)&device->tx_buffer + sizeof(struct rndis_packet_msg);
for (q = p; q != NULL; q = q->next)
{
memcpy(buffer, q->payload, q->len);
buffer += q->len;
}
/* send */
{
rndis_packet_msg_t msg;
msg = (rndis_packet_msg_t)&device->tx_buffer;
msg->MessageType = REMOTE_NDIS_PACKET_MSG;
msg->DataOffset = sizeof(struct rndis_packet_msg) - 8;
msg->DataLength = p->tot_len;
msg->OOBDataLength = 0;
msg->OOBDataOffset = 0;
msg->NumOOBDataElements = 0;
msg->PerPacketInfoOffset = 0;
msg->PerPacketInfoLength = 0;
msg->VcHandle = 0;
msg->Reserved = 0;
msg->MessageLength = sizeof(struct rndis_packet_msg) + p->tot_len;
if((msg->MessageLength & 0x3F) == 0)
{
/* pad a dummy. */
msg->MessageLength += 1;
}
device->eps.ep_in->request.buffer = (void *)&device->tx_buffer;
device->eps.ep_in->request.size = msg->MessageLength;
device->eps.ep_in->request.req_type = UIO_REQUEST_WRITE;
rt_usbd_io_request(device->func->device, device->eps.ep_in, &device->eps.ep_in->request);
}
return result;
}
#ifdef RT_USING_DEVICE_OPS
const static struct rt_device_ops rndis_device_ops =
{
rt_rndis_eth_init,
rt_rndis_eth_open,
rt_rndis_eth_close,
rt_rndis_eth_read,
rt_rndis_eth_write,
rt_rndis_eth_control
};
#endif
#endif /* RT_USING_LWIP */
#ifdef RNDIS_DELAY_LINK_UP
/**
* This function will set rndis connect status.
*
* @param device the usb device object.
* @param status the connect status.
*
* @return RT_EOK on successful.
*/
static rt_err_t _rndis_indicate_status_msg(ufunction_t func, rt_uint32_t status)
{
rndis_indicate_status_msg_t resp;
struct rt_rndis_response * response;
response = rt_malloc(sizeof(struct rt_rndis_response));
resp = rt_malloc(sizeof(struct rndis_indicate_status_msg));
if( (response == RT_NULL) || (resp == RT_NULL) )
{
LOG_E("%s,%d: no memory!", __func__, __LINE__);
if(response != RT_NULL)
rt_free(response);
if(resp != RT_NULL)
rt_free(resp);
return -RT_ENOMEM;
}
resp->MessageType = REMOTE_NDIS_INDICATE_STATUS_MSG;
resp->MessageLength = 20; /* sizeof(struct rndis_indicate_status_msg) */
resp->Status = status;
resp->StatusBufferLength = 0;
resp->StatusBufferOffset = 0;
response->buffer = resp;
{
rt_base_t level = rt_hw_interrupt_disable();
rt_list_insert_before(&((rt_rndis_eth_t)func->user_data)->response_list, &response->list);
rt_hw_interrupt_enable(level);
}
_rndis_response_available(func);
return RT_EOK;
}
/* the delay linkup timer handler. */
static void timer_timeout(void* parameter)
{
LOG_I("delay link up!");
_rndis_indicate_status_msg(((rt_rndis_eth_t)parameter)->func,
RNDIS_STATUS_MEDIA_CONNECT);
eth_device_linkchange(&((rt_rndis_eth_t)parameter)->parent, RT_TRUE);
}
#endif /* RNDIS_DELAY_LINK_UP */
/**
* This function will create a cdc rndis class instance.
*
* @param device the usb device object.
*
* @return RT_EOK on successful.
*/
ufunction_t rt_usbd_function_rndis_create(udevice_t device)
{
ufunction_t cdc;
rt_rndis_eth_t _rndis;
cdc_eps_t eps;
uintf_t intf_comm, intf_data;
ualtsetting_t comm_setting, data_setting;
ucdc_data_desc_t data_desc;
ucdc_comm_desc_t comm_desc;
/* parameter check */
RT_ASSERT(device != RT_NULL);
/* set usb device string description */
#ifdef RT_USB_DEVICE_COMPOSITE
rt_usbd_device_set_interface_string(device, RNDIS_INTF_STR_INDEX, _ustring[2]);
#else
rt_usbd_device_set_string(device, _ustring);
#endif
/* create a cdc class */
cdc = rt_usbd_function_new(device, &_dev_desc, &ops);
rt_usbd_device_set_qualifier(device, &dev_qualifier);
_rndis= rt_malloc(sizeof(struct rt_rndis_eth));
rt_memset(_rndis, 0, sizeof(struct rt_rndis_eth));
cdc->user_data = _rndis;
_rndis->func = cdc;
/* create a cdc class endpoints collection */
eps = &_rndis->eps;
/* create a cdc communication interface and a cdc data interface */
intf_comm = rt_usbd_interface_new(device, _interface_handler);
intf_data = rt_usbd_interface_new(device, _interface_handler);
/* create a communication alternate setting and a data alternate setting */
comm_setting = rt_usbd_altsetting_new(sizeof(struct ucdc_comm_descriptor));
data_setting = rt_usbd_altsetting_new(sizeof(struct ucdc_data_descriptor));
/* config desc in alternate setting */
rt_usbd_altsetting_config_descriptor(comm_setting, &_comm_desc,
(rt_off_t)&((ucdc_comm_desc_t)0)->intf_desc);
rt_usbd_altsetting_config_descriptor(data_setting, &_data_desc, 0);
/* configure the cdc interface descriptor */
_cdc_descriptor_config(comm_setting->desc, intf_comm->intf_num, data_setting->desc, intf_data->intf_num, device->dcd->device_is_hs);
/* create a command endpoint */
comm_desc = (ucdc_comm_desc_t)comm_setting->desc;
eps->ep_cmd = rt_usbd_endpoint_new(&comm_desc->ep_desc, _ep_cmd_handler);
/* add the command endpoint to the cdc communication interface */
rt_usbd_altsetting_add_endpoint(comm_setting, eps->ep_cmd);
/* add the communication alternate setting to the communication interface,
then set default setting of the interface */
rt_usbd_interface_add_altsetting(intf_comm, comm_setting);
rt_usbd_set_altsetting(intf_comm, 0);
/* add the communication interface to the cdc class */
rt_usbd_function_add_interface(cdc, intf_comm);
/* create a bulk in and a bulk out endpoint */
data_desc = (ucdc_data_desc_t)data_setting->desc;
eps->ep_out = rt_usbd_endpoint_new(&data_desc->ep_out_desc, _ep_out_handler);
eps->ep_in = rt_usbd_endpoint_new(&data_desc->ep_in_desc, _ep_in_handler);
/* add the bulk out and bulk in endpoints to the data alternate setting */
rt_usbd_altsetting_add_endpoint(data_setting, eps->ep_in);
rt_usbd_altsetting_add_endpoint(data_setting, eps->ep_out);
/* add the data alternate setting to the data interface
then set default setting of the interface */
rt_usbd_interface_add_altsetting(intf_data, data_setting);
rt_usbd_set_altsetting(intf_data, 0);
/* add the cdc data interface to cdc class */
rt_usbd_function_add_interface(cdc, intf_data);
rt_usbd_os_comp_id_desc_add_os_func_comp_id_desc(device->os_comp_id_desc, &rndis_func_comp_id_desc);
#ifdef RT_USING_LWIP
rt_list_init(&_rndis->response_list);
_rndis->need_notify = RT_TRUE;
rt_sem_init(&_rndis->tx_buffer_free, "ue_tx", 1, RT_IPC_FLAG_FIFO);
#ifdef RNDIS_DELAY_LINK_UP
rt_timer_init(&_rndis->timer,
"RNDIS",
timer_timeout,
_rndis,
RT_TICK_PER_SECOND * 2,
RT_TIMER_FLAG_ONE_SHOT | RT_TIMER_FLAG_SOFT_TIMER);
#endif /* RNDIS_DELAY_LINK_UP */
/* OUI 00-00-00, only for test. */
_rndis->dev_addr[0] = 0x34;
_rndis->dev_addr[1] = 0x97;
_rndis->dev_addr[2] = 0xF6;
/* generate random MAC. */
_rndis->dev_addr[3] = 0x94;//*(const rt_uint8_t *)(0x1fff7a10);
_rndis->dev_addr[4] = 0xEA;//*(const rt_uint8_t *)(0x1fff7a14);
_rndis->dev_addr[5] = 0x12;//(const rt_uint8_t *)(0x1fff7a18);
/* OUI 00-00-00, only for test. */
_rndis->host_addr[0] = 0x34;
_rndis->host_addr[1] = 0x97;
_rndis->host_addr[2] = 0xF6;
/* generate random MAC. */
_rndis->host_addr[3] = 0x94;//*(const rt_uint8_t *)(0x0FE081F0);
_rndis->host_addr[4] = 0xEA;//*(const rt_uint8_t *)(0x0FE081F1);
_rndis->host_addr[5] = 0x13;//*(const rt_uint8_t *)(0x0FE081F2);
#ifdef RT_USING_DEVICE_OPS
_rndis->parent.parent.ops = &rndis_device_ops;
#else
_rndis->parent.parent.init = rt_rndis_eth_init;
_rndis->parent.parent.open = rt_rndis_eth_open;
_rndis->parent.parent.close = rt_rndis_eth_close;
_rndis->parent.parent.read = rt_rndis_eth_read;
_rndis->parent.parent.write = rt_rndis_eth_write;
_rndis->parent.parent.control = rt_rndis_eth_control;
#endif
_rndis->parent.parent.user_data = device;
_rndis->parent.eth_rx = rt_rndis_eth_rx;
_rndis->parent.eth_tx = rt_rndis_eth_tx;
/* register eth device */
eth_device_init(&((rt_rndis_eth_t)cdc->user_data)->parent, "u0");
#endif /* RT_USING_LWIP */
return cdc;
}
struct udclass rndis_class =
{
.rt_usbd_function_create = rt_usbd_function_rndis_create
};
int rt_usbd_rndis_class_register(void)
{
rt_usbd_class_register(&rndis_class);
return 0;
}
INIT_PREV_EXPORT(rt_usbd_rndis_class_register);
#endif /* RT_USB_DEVICE_RNDIS */
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