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add eth_device_linkchange function on ethnet interface. 

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1669 bbd45198-f89e-11dd-88c7-29a3b14d5316
This commit is contained in:
bernard.xiong@gmail.com 2011-08-14 12:56:30 +00:00
parent 5a825fd81a
commit 2bc131f3a9
5 changed files with 50 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
components/net/lwip/src/core/netif.c
View File

@ -471,6 +471,9 @@ void netif_set_status_callback(struct netif *netif, void (* status_callback)(str
*/
void netif_set_link_up(struct netif *netif )
{
/* not notify link up anymore */
if (netif->flags & NETIF_FLAG_LINK_UP) return;
netif->flags |= NETIF_FLAG_LINK_UP;
#if LWIP_DHCP

3
components/net/lwip/src/include/lwip/netifapi.h
View File

@ -96,6 +96,9 @@ err_t netifapi_netif_common ( struct netif *netif,
#define netifapi_autoip_start(n) netifapi_netif_common(n, NULL, autoip_start)
#define netifapi_autoip_stop(n) netifapi_netif_common(n, NULL, autoip_stop)
#define netifapi_netif_set_link_up(n) netifapi_netif_common(n, netif_set_link_up, NULL)
#define netifapi_netif_set_link_down(n) netifapi_netif_common(n, netif_set_link_down, NULL)
#ifdef __cplusplus
}
#endif

5
components/net/lwip/src/include/netif/ethernetif.h
View File

@ -16,12 +16,17 @@ struct eth_device
struct netif *netif;
struct rt_semaphore tx_ack;
rt_uint16_t link_changed;
rt_uint16_t link_status;
/* eth device interface */
struct pbuf* (*eth_rx)(rt_device_t dev);
rt_err_t (*eth_tx)(rt_device_t dev, struct pbuf* p);
};
rt_err_t eth_rx_ready(struct eth_device* dev);
rt_err_t eth_device_ready(struct eth_device* dev);
rt_err_t eth_device_linkchange(struct eth_device* dev, rt_bool_t up);
rt_err_t eth_device_init(struct eth_device* dev, const char* name);

8
components/net/lwip/src/lwipopts.h
View File

@ -178,13 +178,13 @@
#define TCP_QUEUE_OOSEQ 1
/* TCP Maximum segment size. */
#define TCP_MSS 1024
#define TCP_MSS 1460
/* TCP sender buffer space (bytes). */
#ifdef RT_LWIP_TCP_SND_BUF
#define TCP_SND_BUF RT_LWIP_TCP_SND_BUF
#else
#define TCP_SND_BUF 2048
#define TCP_SND_BUF (TCP_MSS * 2)
#endif
/* TCP sender buffer space (pbufs). This must be at least = 2 *
@ -198,9 +198,9 @@
/* TCP receive window. */
#ifdef RT_LWIP_TCP_WND
#define TCP_WND RT_LWIP_TCP_WND
#define TCP_WND RT_LWIP_TCP_WND
#else
#define TCP_WND 1500
#define TCP_WND (TCP_MSS * 2)
#endif
/* Maximum number of retransmissions of data segments. */

35
components/net/lwip/src/netif/ethernetif.c
View File

@ -188,6 +188,23 @@ void eth_rx_thread_entry(void* parameter)
{
struct pbuf *p;
/* check link status */
if (device->link_changed)
{
int status;
rt_uint32_t level;
level = rt_hw_interrupt_disable();
status = device->link_status;
device->link_changed = 0x00;
rt_hw_interrupt_enable(level);
if (status)
netifapi_netif_set_link_up(device->netif);
else
netifapi_netif_set_link_down(device->netif);
}
/* receive all of buffer */
while (1)
{
@ -219,6 +236,24 @@ rt_err_t eth_device_ready(struct eth_device* dev)
return eth_rx_ready(dev);
}
rt_err_t eth_device_linkchange(struct eth_device* dev, rt_bool_t up)
{
rt_uint32_t level;
RT_ASSERT(dev != RT_NULL);
level = rt_hw_interrupt_disable();
dev->link_changed = 0x01;
if (up == RT_TRUE)
dev->link_status = 0x01;
else
dev->link_status = 0x00;
rt_hw_interrupt_enable(level);
/* post message to ethernet thread */
return rt_mb_send(&eth_rx_thread_mb, (rt_uint32_t)dev);
}
rt_err_t eth_system_device_init()
{
rt_err_t result = RT_EOK;