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Merge pull request #3874 from sheltonyu/developer 

[bsp/at32] add link detecting thread for ethernet driver
This commit is contained in:
Bernard Xiong 2020-09-04 09:37:43 +08:00 committed by GitHub
parent bd6171b6ac 68df79e8ed
commit cf622e5177
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 44 additions and 0 deletions
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44
bsp/at32/Libraries/rt_drivers/drv_eth.c
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@ -31,6 +31,9 @@
#define ETH_RXBUFNB 4
#define ETH_TXBUFNB 2
#define LINK_THREAD_STACK_SIZE 256
#define LINK_THREAD_PREORITY 21
extern ETH_DMADESCTypeDef *DMATxDescToSet;
extern ETH_DMADESCTypeDef *DMARxDescToGet;
extern ETH_DMADESCTypeDef *DMAPTPTxDescToSet;
@ -38,6 +41,8 @@ extern ETH_DMADESCTypeDef *DMAPTPRxDescToGet;
static ETH_DMADESCTypeDef DMARxDscrTab[ETH_RXBUFNB], DMATxDscrTab[ETH_TXBUFNB];
static rt_uint8_t Rx_Buff[ETH_RXBUFNB][ETH_MAX_PACKET_SIZE], Tx_Buff[ETH_TXBUFNB][ETH_MAX_PACKET_SIZE];
static struct rt_thread eth_link_thread;
static rt_uint8_t eth_link_stack[LINK_THREAD_STACK_SIZE];
#define MAX_ADDR_LEN 6
/* Gloable variables ---------------------------------------------------------*/
@ -634,6 +639,37 @@ struct pbuf *rt_at32_eth_rx(rt_device_t dev)
return p;
}
static void eth_link_thread_entry(void *paramter)
{
uint8_t linked_down = 1;
struct netif *pnetif = at32_eth_device.parent.netif;
while(1){
if((ETH_ReadPHYRegister(PHY_ADDRESS, PHY_BSR) & PHY_Linked_Status) && (linked_down == 1))
{
/* link up */
linked_down = 0;
#ifndef RT_LWIP_DHCP
pnetif->ip_addr = inet_addr(RT_LWIP_IPADDR);
pnetif->gw = inet_addr(RT_LWIP_GWADDR);
pnetif->netmask = inet_addr(RT_LWIP_MSKADDR);
#else
IP4_ADDR(&(pnetif->ip_addr), 0, 0, 0, 0);
IP4_ADDR(&(pnetif->netmask), 0, 0, 0, 0);
IP4_ADDR(&(pnetif->gw), 0, 0, 0, 0);
#endif
eth_device_linkchange(&(at32_eth_device.parent), RT_TRUE);
}else if(!(ETH_ReadPHYRegister(PHY_ADDRESS, PHY_BSR) & PHY_Linked_Status) && (linked_down == 0))
{
/* link down */
linked_down = 1;
eth_device_linkchange(&(at32_eth_device.parent), RT_FALSE);
}
rt_thread_mdelay(500);
}
}
/* interrupt service routine */
void ETH_IRQHandler(void)
{
@ -707,9 +743,17 @@ static int rt_hw_at32_eth_init(void)
/* register eth device */
state = eth_device_init(&(at32_eth_device.parent), "e0");
if (RT_EOK == state)
{
LOG_D("emac device init success");
state = rt_thread_init(&eth_link_thread, "eth_link_detect", eth_link_thread_entry, RT_NULL,
&eth_link_stack[0], LINK_THREAD_STACK_SIZE, LINK_THREAD_PREORITY, 20);
if (state == RT_EOK)
{
rt_thread_startup(&eth_link_thread);
}
}
else
{