drivers/char/moxaart_moxa_swtd.h

   1 #ifndef __MOXAART_MOXA_SWDT__
   2 #define __MOXAART_MOXA_SWDT__
   3
   4 #define DEFAULT_WATCHDOG_TIME   (30UL*1000UL)   // 30 seconds
   5 #define WATCHDOG_MIN_TIME       50UL            // 50 msec
   6 #define WATCHDOG_MAX_TIME       (60UL*1000UL)   // 60 seconds
   7 #define WATCHDOG_TOL_TIME       (50UL)  // 50 msec, for watchdog timer polling
   8 #define WATCHDOG_DEFER_TIME     (15000UL)       // 5 sec, for hw watchdog timer rebooting
   9
  10 #define WATCHDOG_COUNTER(x)     ((APB_CLK/1000UL)*(x))
  11 #define WATCHDOG_ACK_JIFFIES(x) (((x)*HZ/1000UL)-WATCHDOG_TOL_TIME)
  12
  13 #define MOXA_WATCHDOG_MINOR     106
  14 #define IOCTL_WATCHDOG_ENABLE           1       // enable watch dog and set time (unint msec)
  15 #define IOCTL_WATCHDOG_DISABLE          2       // disable watch dog, kernle do it
  16 #define IOCTL_WATCHDOG_GET_SETTING      3       // get now setting about mode and time
  17 #define IOCTL_WATCHDOG_ACK              4       // to ack watch dog
  18
  19 struct swtd_set_struct {
  20         int             mode;
  21         unsigned long   time;
  22 };
  23
  24 #endif  //___MOXAART_MOXA_SWDT__