nodemcu-firmware/app/modules/rtctime.c

128 lines
2.7 KiB
C

// Module for RTC time keeping
#include "module.h"
#include "lauxlib.h"
#include "rtc/rtctime_internal.h"
#include "rtc/rtctime.h"
// ******* C API functions *************
void rtctime_early_startup (void)
{
Cache_Read_Enable (0, 0, 1);
rtc_time_register_bootup ();
rtc_time_switch_clocks ();
Cache_Read_Disable ();
}
void rtctime_late_startup (void)
{
rtc_time_switch_system ();
}
void rtctime_gettimeofday (struct rtc_timeval *tv)
{
rtc_time_gettimeofday (tv);
}
void rtctime_settimeofday (const struct rtc_timeval *tv)
{
if (!rtc_time_check_magic ())
rtc_time_prepare ();
rtc_time_settimeofday (tv);
}
bool rtctime_have_time (void)
{
return rtc_time_have_time ();
}
void rtctime_deep_sleep_us (uint32_t us)
{
rtc_time_deep_sleep_us (us);
}
void rtctime_deep_sleep_until_aligned_us (uint32_t align_us, uint32_t min_us)
{
rtc_time_deep_sleep_until_aligned (align_us, min_us);
}
// ******* Lua API functions *************
// rtctime.set (sec, usec)
static int rtctime_set (lua_State *L)
{
if (!rtc_time_check_magic ())
rtc_time_prepare ();
uint32_t sec = luaL_checknumber (L, 1);
uint32_t usec = 0;
if (lua_isnumber (L, 2))
usec = lua_tonumber (L, 2);
struct rtc_timeval tv = { sec, usec };
rtctime_settimeofday (&tv);
return 0;
}
// sec, usec = rtctime.get ()
static int rtctime_get (lua_State *L)
{
struct rtc_timeval tv;
rtctime_gettimeofday (&tv);
lua_pushnumber (L, tv.tv_sec);
lua_pushnumber (L, tv.tv_usec);
return 2;
}
static void do_sleep_opt (lua_State *L, int idx)
{
if (lua_isnumber (L, idx))
{
uint32_t opt = lua_tonumber (L, idx);
if (opt < 0 || opt > 4)
luaL_error (L, "unknown sleep option");
system_deep_sleep_set_option (opt);
}
}
// rtctime.dsleep (usec, option)
static int rtctime_dsleep (lua_State *L)
{
uint32_t us = luaL_checknumber (L, 1);
do_sleep_opt (L, 2);
rtctime_deep_sleep_us (us); // does not return
return 0;
}
// rtctime.dsleep_aligned (aligned_usec, min_usec, option)
static int rtctime_dsleep_aligned (lua_State *L)
{
if (!rtctime_have_time ())
return luaL_error (L, "time not available, unable to align");
uint32_t align_us = luaL_checknumber (L, 1);
uint32_t min_us = luaL_checknumber (L, 2);
do_sleep_opt (L, 3);
rtctime_deep_sleep_until_aligned_us (align_us, min_us); // does not return
return 0;
}
// Module function map
static const LUA_REG_TYPE rtctime_map[] = {
{ LSTRKEY("set"), LFUNCVAL(rtctime_set) },
{ LSTRKEY("get"), LFUNCVAL(rtctime_get) },
{ LSTRKEY("dsleep"), LFUNCVAL(rtctime_dsleep) },
{ LSTRKEY("dsleep_aligned"), LFUNCVAL(rtctime_dsleep_aligned) },
{ LNILKEY, LNILVAL }
};
NODEMCU_MODULE(RTCTIME, "rtctime", rtctime_map, NULL);