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zy1000: added watchdog server 

Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
__archive__
Øyvind Harboe 2010-05-06 13:37:56 +02:00
parent 14c112e992
commit f6236ade0e
1 changed files with 92 additions and 1 deletions
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93
src/jtag/zy1000/zy1000.c
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@ -1162,10 +1162,13 @@ int interface_jtag_add_sleep(uint32_t us)
#if BUILD_ECOSBOARD
static char tcpip_stack[2048];
static cyg_thread tcpip_thread_object;
static cyg_handle_t tcpip_thread_handle;
static char watchdog_stack[2048];
static cyg_thread watchdog_thread_object;
static cyg_handle_t watchdog_thread_handle;
/* Infinite loop peeking & poking */
static void tcpipserver(void)
{
@ -1276,6 +1279,88 @@ static void tcpip_server(cyg_addrword_t data)
}
#ifdef WATCHDOG_BASE
/* If we connect to port 8888 we must send a char every 10s or the board resets itself */
static void watchdog_server(cyg_addrword_t data)
{
int so_reuseaddr_option = 1;
int fd;
if ((fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
{
LOG_ERROR("error creating socket: %s", strerror(errno));
exit(-1);
}
setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void*) &so_reuseaddr_option,
sizeof(int));
struct sockaddr_in sin;
unsigned int address_size;
address_size = sizeof(sin);
memset(&sin, 0, sizeof(sin));
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = INADDR_ANY;
sin.sin_port = htons(8888);
if (bind(fd, (struct sockaddr *) &sin, sizeof(sin)) == -1)
{
LOG_ERROR("couldn't bind to socket: %s", strerror(errno));
exit(-1);
}
if (listen(fd, 1) == -1)
{
LOG_ERROR("couldn't listen on socket: %s", strerror(errno));
exit(-1);
}
for (;;)
{
int watchdog_ip = accept(fd, (struct sockaddr *) &sin, &address_size);
/* Start watchdog, must be reset every 10 seconds. */
HAL_WRITE_UINT32(WATCHDOG_BASE + 4, 4);
if (watchdog_ip < 0)
{
LOG_ERROR("couldn't open watchdog socket: %s", strerror(errno));
exit(-1);
}
int flag = 1;
setsockopt(watchdog_ip, /* socket affected */
IPPROTO_TCP, /* set option at TCP level */
TCP_NODELAY, /* name of option */
(char *)&flag, /* the cast is historical cruft */
sizeof(int)); /* length of option value */
char buf;
for (;;)
{
if (read(watchdog_ip, &buf, 1) == 1)
{
/* Reset timer */
HAL_WRITE_UINT32(WATCHDOG_BASE + 8, 0x1234);
/* Echo so we can telnet in and see that resetting works */
write(watchdog_ip, &buf, 1);
} else
{
/* Stop tickling the watchdog, the CPU will reset in < 10 seconds
* now.
*/
return;
}
}
/* Never reached */
}
}
#endif
int interface_jtag_add_sleep(uint32_t us)
{
jtag_sleep(us);
@ -1306,6 +1391,12 @@ int zy1000_init(void)
(void *) tcpip_stack, sizeof(tcpip_stack),
&tcpip_thread_handle, &tcpip_thread_object);
cyg_thread_resume(tcpip_thread_handle);
#ifdef WATCHDOG_BASE
cyg_thread_create(1, watchdog_server, (cyg_addrword_t) 0, "watchdog tcip/ip server",
(void *) watchdog_stack, sizeof(watchdog_stack),
&watchdog_thread_handle, &watchdog_thread_object);
cyg_thread_resume(watchdog_thread_handle);
#endif
#endif
return ERROR_OK;