djsundog/circuitpython
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

drivers, wiznet5k: Make DNS service use HAL sys tick.

Browse Source
This commit is contained in:
Damien George 2014-09-01 00:11:34 +01:00
parent 9091e84454
commit cdd40f149a
2 changed files with 11 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
drivers/wiznet5k/internet/dns/dns.c
View File

@ -121,7 +121,8 @@ uint8_t* pDNSMSG; // DNS message buffer
uint8_t DNS_SOCKET; // SOCKET number for DNS
uint16_t DNS_MSGID; // DNS message ID
uint32_t dns_1s_tick; // SecTick counter for DNS process timeout
extern uint32_t HAL_GetTick(void);
uint32_t hal_sys_tick;
/* converts uint16_t from network buffer to a host byte order integer. */
uint16_t get16(uint8_t * s)
@ -341,7 +342,7 @@ int8_t parseDNSMSG(struct dhdr * pdhdr, uint8_t * pbuf, uint8_t * ip_from_dns)
uint8_t * cp;
msg = pbuf;
memset(pdhdr, 0, sizeof(pdhdr));
memset(pdhdr, 0, sizeof(*pdhdr));
pdhdr->id = get16(&msg[0]);
tmp = get16(&msg[2]);
@ -453,7 +454,7 @@ int16_t dns_makequery(uint16_t op, char * name, uint8_t * buf, uint16_t len)
if (len == 0) break;
/* Copy component up to (but not including) dot */
strncpy((char *)cp, dname, len);
memcpy(cp, dname, len);
cp += len;
if (cp1 == NULL)
{
@ -483,9 +484,10 @@ int8_t check_DNS_timeout(void)
{
static uint8_t retry_count;
if(dns_1s_tick >= DNS_WAIT_TIME)
uint32_t tick = HAL_GetTick();
if(tick - hal_sys_tick >= DNS_WAIT_TIME * 1000)
{
dns_1s_tick = 0;
hal_sys_tick = tick;
if(retry_count >= MAX_DNS_RETRY) {
retry_count = 0;
return -1; // timeout occurred
@ -515,6 +517,8 @@ int8_t DNS_run(uint8_t * dns_ip, uint8_t * name, uint8_t * ip_from_dns)
uint8_t ip[4];
uint16_t len, port;
int8_t ret_check_timeout;
hal_sys_tick = HAL_GetTick();
// Socket open
socket(DNS_SOCKET, Sn_MR_UDP, 0, 0);
@ -560,13 +564,3 @@ int8_t DNS_run(uint8_t * dns_ip, uint8_t * name, uint8_t * ip_from_dns)
// 0 > : failed / 1 - success
return ret;
}
/* DNS TIMER HANDLER */
void DNS_time_handler(void)
{
dns_1s_tick++;
}

10
drivers/wiznet5k/internet/dns/dns.h
View File

@ -65,10 +65,10 @@
* @todo SHOULD BE defined it equal as or greater than your Domain name length + null character(1)
* @note SHOULD BE careful to stack overflow because it is allocated 1.5 times as MAX_DOMAIN_NAME in stack.
*/
#define MAX_DOMAIN_NAME 16 // for example "www.google.com"
#define MAX_DOMAIN_NAME 32 // for example "www.google.com"
#define MAX_DNS_RETRY 2 ///< Requery Count
#define DNS_WAIT_TIME 3 ///< Wait response time. unit 1s.
#define DNS_WAIT_TIME 4 ///< Wait response time. unit 1s.
#define IPPORT_DOMAIN 53 ///< DNS server port number
@ -93,10 +93,4 @@ void DNS_init(uint8_t s, uint8_t * buf);
*/
int8_t DNS_run(uint8_t * dns_ip, uint8_t * name, uint8_t * ip_from_dns);
/*
* @brief DNS 1s Tick Timer handler
* @note SHOULD BE register to your system 1s Tick timer handler
*/
void DNS_time_handler(void);
#endif /* _DNS_H_ */