527 lines
15 KiB
C
527 lines
15 KiB
C
/*guys, srsly, turn on warnings in the makefile*/
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#if defined(__GNUC__)
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#pragma GCC diagnostic warning "-Wall"
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#pragma GCC diagnostic warning "-Wextra"
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#pragma GCC diagnostic ignored "-Wunused-parameter"
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#endif
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/*-------------------------------------
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NEW TIMER API
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---------------------------------------
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tmr.wdclr() -- not changed
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tmr.now() -- not changed
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tmr.time() -- not changed
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tmr.delay() -- not changed
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tmr.alarm() -- not changed
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tmr.stop() -- changed, see below. use tmr.unregister for old functionality
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tmr.register(id, interval, mode, function)
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bind function with timer and set the interval in ms
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the mode can be:
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tmr.ALARM_SINGLE for a single run alarm
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tmr.ALARM_SEMI for a multiple single run alarm
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tmr.ALARM_AUTO for a repating alarm
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tmr.register does NOT start the timer
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tmr.alarm is a tmr.register & tmr.start macro
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tmr.unregister(id)
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stop alarm, unbind function and clean up memory
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not needed for ALARM_SINGLE, as it unregisters itself
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tmr.start(id)
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ret: bool
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start a alarm, returns true on success
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tmr.stop(id)
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ret: bool
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stops a alarm, returns true on success
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this call dose not free any memory, to do so use tmr.unregister
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stopped alarms can be started with start
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tmr.interval(id, interval)
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set alarm interval, running alarm will be restarted
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tmr.state(id)
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ret: (bool, int) or nil
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returns alarm status (true=started/false=stopped) and mode
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nil if timer is unregistered
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tmr.softwd(int)
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set a negative value to stop the timer
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any other value starts the timer, when the
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countdown reaches zero, the device restarts
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the timer units are seconds
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*/
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#include "module.h"
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#include "lauxlib.h"
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#include "platform.h"
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#include "c_types.h"
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#include "user_interface.h"
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#include "swTimer/swTimer.h"
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#define TIMER_MODE_OFF 3
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#define TIMER_MODE_SINGLE 0
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#define TIMER_MODE_SEMI 2
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#define TIMER_MODE_AUTO 1
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#define TIMER_IDLE_FLAG (1<<7)
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#define STRINGIFY_VAL(x) #x
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#define STRINGIFY(x) STRINGIFY_VAL(x)
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// assuming system_timer_reinit() has *not* been called
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#define MAX_TIMEOUT_DEF 6870947 //SDK 1.5.3 limit (0x68D7A3)
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static const uint32 MAX_TIMEOUT=MAX_TIMEOUT_DEF;
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static const char* MAX_TIMEOUT_ERR_STR = "Range: 1-"STRINGIFY(MAX_TIMEOUT_DEF);
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typedef struct{
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os_timer_t os;
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sint32_t lua_ref, self_ref;
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uint32_t interval;
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uint8_t mode;
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}timer_struct_t;
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typedef timer_struct_t* timer_t;
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// The previous implementation extended the rtc counter to 64 bits, and then
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// applied rtc2sec with the current calibration value to that 64 bit value.
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// This means that *ALL* clock ticks since bootup are counted with the *current*
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// clock period. In extreme cases (long uptime, sudden temperature change), this
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// could result in tmr.time() going backwards....
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// This implementation instead applies rtc2usec to short time intervals only (the
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// longest being around 1 second), and then accumulates the resulting microseconds
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// in a 64 bit counter. That's guaranteed to be monotonic, and should be a lot closer
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// to representing an actual uptime.
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static uint32_t rtc_time_cali=0;
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static uint32_t last_rtc_time=0;
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static uint64_t last_rtc_time_us=0;
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static sint32_t soft_watchdog = -1;
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static timer_struct_t alarm_timers[NUM_TMR];
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static os_timer_t rtc_timer;
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static void alarm_timer_common(void* arg){
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timer_t tmr = (timer_t)arg;
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lua_State* L = lua_getstate();
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if(tmr->lua_ref == LUA_NOREF)
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return;
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lua_rawgeti(L, LUA_REGISTRYINDEX, tmr->lua_ref);
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if (tmr->self_ref == LUA_REFNIL) {
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uint32_t id = tmr - alarm_timers;
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lua_pushinteger(L, id);
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} else {
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lua_rawgeti(L, LUA_REGISTRYINDEX, tmr->self_ref);
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}
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//if the timer was set to single run we clean up after it
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if(tmr->mode == TIMER_MODE_SINGLE){
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luaL_unref(L, LUA_REGISTRYINDEX, tmr->lua_ref);
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tmr->lua_ref = LUA_NOREF;
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tmr->mode = TIMER_MODE_OFF;
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}else if(tmr->mode == TIMER_MODE_SEMI){
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tmr->mode |= TIMER_IDLE_FLAG;
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}
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if (tmr->mode != TIMER_MODE_AUTO && tmr->self_ref != LUA_REFNIL) {
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luaL_unref(L, LUA_REGISTRYINDEX, tmr->self_ref);
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tmr->self_ref = LUA_NOREF;
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}
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lua_call(L, 1, 0);
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}
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// Lua: tmr.delay( us )
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static int tmr_delay( lua_State* L ){
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sint32_t us = luaL_checkinteger(L, 1);
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if(us <= 0)
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return luaL_error(L, "wrong arg range");
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while(us >= 10000){
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us -= 10000;
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os_delay_us(10000);
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system_soft_wdt_feed ();
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}
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if(us>0){
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os_delay_us(us);
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system_soft_wdt_feed ();
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}
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return 0;
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}
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// Lua: tmr.now() , return system timer in us
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static int tmr_now(lua_State* L){
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uint32_t now = 0x7FFFFFFF & system_get_time();
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lua_pushinteger(L, now);
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return 1;
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}
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static timer_t tmr_get( lua_State *L, int stack ) {
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// Deprecated: static 0-6 timers control by index.
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luaL_argcheck(L, (lua_isuserdata(L, stack) || lua_isnumber(L, stack)), 1, "timer object or numerical ID expected");
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if (lua_isuserdata(L, stack)) {
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return (timer_t)luaL_checkudata(L, stack, "tmr.timer");
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} else {
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uint32_t id = luaL_checkinteger(L, 1);
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luaL_argcheck(L, platform_tmr_exists(id), 1, "invalid timer index");
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return &alarm_timers[id];
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}
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return 0;
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}
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// Lua: tmr.register( id / ref, interval, mode, function )
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static int tmr_register(lua_State* L){
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timer_t tmr = tmr_get(L, 1);
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uint32_t interval = luaL_checkinteger(L, 2);
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uint8_t mode = luaL_checkinteger(L, 3);
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luaL_argcheck(L, (interval > 0 && interval <= MAX_TIMEOUT), 2, MAX_TIMEOUT_ERR_STR);
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luaL_argcheck(L, (mode == TIMER_MODE_SINGLE || mode == TIMER_MODE_SEMI || mode == TIMER_MODE_AUTO), 3, "Invalid mode");
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luaL_argcheck(L, (lua_type(L, 4) == LUA_TFUNCTION || lua_type(L, 4) == LUA_TLIGHTFUNCTION), 4, "Must be function");
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//get the lua function reference
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lua_pushvalue(L, 4);
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sint32_t ref = luaL_ref(L, LUA_REGISTRYINDEX);
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if(!(tmr->mode & TIMER_IDLE_FLAG) && tmr->mode != TIMER_MODE_OFF)
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os_timer_disarm(&tmr->os);
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//there was a bug in this part, the second part of the following condition was missing
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if(tmr->lua_ref != LUA_NOREF && tmr->lua_ref != ref)
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luaL_unref(L, LUA_REGISTRYINDEX, tmr->lua_ref);
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tmr->lua_ref = ref;
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tmr->mode = mode|TIMER_IDLE_FLAG;
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tmr->interval = interval;
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os_timer_setfn(&tmr->os, alarm_timer_common, tmr);
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return 0;
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}
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// Lua: tmr.start( id / ref )
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static int tmr_start(lua_State* L){
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timer_t tmr = tmr_get(L, 1);
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if (tmr->self_ref == LUA_NOREF) {
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lua_pushvalue(L, 1);
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tmr->self_ref = luaL_ref(L, LUA_REGISTRYINDEX);
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}
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//we return false if the timer is not idle
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if(!(tmr->mode&TIMER_IDLE_FLAG)){
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lua_pushboolean(L, 0);
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}else{
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tmr->mode &= ~TIMER_IDLE_FLAG;
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os_timer_arm(&tmr->os, tmr->interval, tmr->mode==TIMER_MODE_AUTO);
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lua_pushboolean(L, 1);
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}
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return 1;
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}
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// Lua: tmr.alarm( id / ref, interval, repeat, function )
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static int tmr_alarm(lua_State* L){
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tmr_register(L);
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return tmr_start(L);
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}
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// Lua: tmr.stop( id / ref )
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static int tmr_stop(lua_State* L){
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timer_t tmr = tmr_get(L, 1);
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if (tmr->self_ref != LUA_REFNIL) {
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luaL_unref(L, LUA_REGISTRYINDEX, tmr->self_ref);
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tmr->self_ref = LUA_NOREF;
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}
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//we return false if the timer is idle (of not registered)
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if(!(tmr->mode & TIMER_IDLE_FLAG) && tmr->mode != TIMER_MODE_OFF){
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tmr->mode |= TIMER_IDLE_FLAG;
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os_timer_disarm(&tmr->os);
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lua_pushboolean(L, 1);
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}else{
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lua_pushboolean(L, 0);
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}
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return 1;
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}
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#ifdef ENABLE_TIMER_SUSPEND
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static int tmr_suspend(lua_State* L){
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timer_t tmr = tmr_get(L, 1);
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if((tmr->mode & TIMER_IDLE_FLAG) == 1){
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return luaL_error(L, "timer not armed");
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}
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int retval = swtmr_suspend(&tmr->os);
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if(retval != SWTMR_OK){
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return luaL_error(L, swtmr_errorcode2str(retval));
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}
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else{
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lua_pushboolean(L, true);
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}
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return 1;
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}
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static int tmr_resume(lua_State* L){
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timer_t tmr = tmr_get(L, 1);
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if(swtmr_suspended_test(&tmr->os) == FALSE){
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return luaL_error(L, "timer not suspended");
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}
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int retval = swtmr_resume(&tmr->os);
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if(retval != SWTMR_OK){
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return luaL_error(L, swtmr_errorcode2str(retval));
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}
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else{
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lua_pushboolean(L, true);
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}
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return 1;
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}
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static int tmr_suspend_all (lua_State *L)
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{
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sint32 retval = swtmr_suspend(NULL);
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// lua_pushnumber(L, swtmr_suspend(NULL));
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if(retval!=SWTMR_OK){
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return luaL_error(L, swtmr_errorcode2str(retval));
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}
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else{
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lua_pushboolean(L, true);
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}
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return 1;
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}
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static int tmr_resume_all (lua_State *L)
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{
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sint32 retval = swtmr_resume(NULL);
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if(retval!=SWTMR_OK){
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return luaL_error(L, swtmr_errorcode2str(retval));
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}
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else{
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lua_pushboolean(L, true);
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}
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return 1;
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}
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#endif
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// Lua: tmr.unregister( id / ref )
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static int tmr_unregister(lua_State* L){
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timer_t tmr = tmr_get(L, 1);
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if (tmr->self_ref != LUA_REFNIL) {
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luaL_unref(L, LUA_REGISTRYINDEX, tmr->self_ref);
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tmr->self_ref = LUA_NOREF;
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}
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if(!(tmr->mode & TIMER_IDLE_FLAG) && tmr->mode != TIMER_MODE_OFF)
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os_timer_disarm(&tmr->os);
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if(tmr->lua_ref != LUA_NOREF)
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luaL_unref(L, LUA_REGISTRYINDEX, tmr->lua_ref);
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tmr->lua_ref = LUA_NOREF;
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tmr->mode = TIMER_MODE_OFF;
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return 0;
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}
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// Lua: tmr.interval( id / ref, interval )
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static int tmr_interval(lua_State* L){
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timer_t tmr = tmr_get(L, 1);
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uint32_t interval = luaL_checkinteger(L, 2);
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luaL_argcheck(L, (interval > 0 && interval <= MAX_TIMEOUT), 2, MAX_TIMEOUT_ERR_STR);
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if(tmr->mode != TIMER_MODE_OFF){
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tmr->interval = interval;
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if(!(tmr->mode&TIMER_IDLE_FLAG)){
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os_timer_disarm(&tmr->os);
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os_timer_arm(&tmr->os, tmr->interval, tmr->mode==TIMER_MODE_AUTO);
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}
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}
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return 0;
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}
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// Lua: tmr.state( id / ref )
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static int tmr_state(lua_State* L){
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timer_t tmr = tmr_get(L, 1);
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if(tmr->mode == TIMER_MODE_OFF){
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lua_pushnil(L);
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return 1;
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}
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lua_pushboolean(L, (tmr->mode & TIMER_IDLE_FLAG) == 0);
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lua_pushinteger(L, tmr->mode & (~TIMER_IDLE_FLAG));
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#ifdef ENABLE_TIMER_SUSPEND
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lua_pushboolean(L, swtmr_suspended_test(&tmr->os));
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#else
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lua_pushnil(L);
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#endif
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return 3;
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}
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/*I left the led comments 'couse I don't know
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why they are here*/
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// extern void update_key_led();
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// Lua: tmr.wdclr()
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static int tmr_wdclr( lua_State* L ){
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system_soft_wdt_feed ();
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// update_key_led();
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return 0;
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}
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//system_rtc_clock_cali_proc() returns
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//a fixed point value (12 bit fraction part)
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//it tells how many rtc clock ticks represent 1us.
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//the high 64 bits of the uint64_t multiplication
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//are unnedded (I did the math)
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static uint32_t rtc2usec(uint64_t rtc){
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return (rtc*rtc_time_cali)>>12;
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}
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// This returns the number of microseconds uptime. Note that it relies on the rtc clock,
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// which is notoriously temperature dependent
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inline static uint64_t rtc_timer_update(bool do_calibration){
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if (do_calibration || rtc_time_cali==0)
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rtc_time_cali=system_rtc_clock_cali_proc();
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uint32_t current = system_get_rtc_time();
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uint32_t since_last=current-last_rtc_time; // This will transparently deal with wraparound
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uint32_t us_since_last=rtc2usec(since_last);
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uint64_t now=last_rtc_time_us+us_since_last;
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// Only update if at least 100ms has passed since we last updated.
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// This prevents the rounding errors in rtc2usec from accumulating
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if (us_since_last>=100000)
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{
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last_rtc_time=current;
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last_rtc_time_us=now;
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}
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return now;
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}
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void rtc_callback(void *arg){
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rtc_timer_update(true);
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if(soft_watchdog > 0){
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soft_watchdog--;
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if(soft_watchdog == 0)
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system_restart();
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}
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}
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// Lua: tmr.time() , return rtc time in second
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static int tmr_time( lua_State* L ){
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uint64_t us=rtc_timer_update(false);
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lua_pushinteger(L, us/1000000);
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return 1;
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}
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// Lua: tmr.softwd( value )
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static int tmr_softwd( lua_State* L ){
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soft_watchdog = luaL_checkinteger(L, 1);
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return 0;
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}
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// Lua: tmr.create()
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static int tmr_create( lua_State *L ) {
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timer_t ud = (timer_t)lua_newuserdata(L, sizeof(timer_struct_t));
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if (!ud) return luaL_error(L, "not enough memory");
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luaL_getmetatable(L, "tmr.timer");
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lua_setmetatable(L, -2);
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ud->lua_ref = LUA_NOREF;
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ud->self_ref = LUA_NOREF;
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ud->mode = TIMER_MODE_OFF;
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os_timer_disarm(&ud->os);
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return 1;
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}
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#if defined(ENABLE_TIMER_SUSPEND) && defined(SWTMR_DEBUG)
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static void tmr_printRegistry(lua_State* L){
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swtmr_print_registry();
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}
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static void tmr_printSuspended(lua_State* L){
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swtmr_print_suspended();
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}
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static void tmr_printTimerlist(lua_State* L){
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swtmr_print_timer_list();
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}
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#endif
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// Module function map
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static const LUA_REG_TYPE tmr_dyn_map[] = {
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{ LSTRKEY( "register" ), LFUNCVAL( tmr_register ) },
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{ LSTRKEY( "alarm" ), LFUNCVAL( tmr_alarm ) },
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{ LSTRKEY( "start" ), LFUNCVAL( tmr_start ) },
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{ LSTRKEY( "stop" ), LFUNCVAL( tmr_stop ) },
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{ LSTRKEY( "unregister" ), LFUNCVAL( tmr_unregister ) },
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{ LSTRKEY( "state" ), LFUNCVAL( tmr_state ) },
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{ LSTRKEY( "interval" ), LFUNCVAL( tmr_interval) },
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#ifdef ENABLE_TIMER_SUSPEND
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{ LSTRKEY( "suspend" ), LFUNCVAL( tmr_suspend ) },
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{ LSTRKEY( "resume" ), LFUNCVAL( tmr_resume ) },
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#endif
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{ LSTRKEY( "__gc" ), LFUNCVAL( tmr_unregister ) },
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{ LSTRKEY( "__index" ), LROVAL( tmr_dyn_map ) },
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{ LNILKEY, LNILVAL }
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};
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#if defined(ENABLE_TIMER_SUSPEND) && defined(SWTMR_DEBUG)
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static const LUA_REG_TYPE tmr_dbg_map[] = {
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{ LSTRKEY( "printRegistry" ), LFUNCVAL( tmr_printRegistry ) },
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{ LSTRKEY( "printSuspended" ), LFUNCVAL( tmr_printSuspended ) },
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{ LSTRKEY( "printTimerlist" ), LFUNCVAL( tmr_printTimerlist ) },
|
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{ LNILKEY, LNILVAL }
|
|
};
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|
#endif
|
|
|
|
static const LUA_REG_TYPE tmr_map[] = {
|
|
{ LSTRKEY( "delay" ), LFUNCVAL( tmr_delay ) },
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{ LSTRKEY( "now" ), LFUNCVAL( tmr_now ) },
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{ LSTRKEY( "wdclr" ), LFUNCVAL( tmr_wdclr ) },
|
|
{ LSTRKEY( "softwd" ), LFUNCVAL( tmr_softwd ) },
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{ LSTRKEY( "time" ), LFUNCVAL( tmr_time ) },
|
|
{ LSTRKEY( "register" ), LFUNCVAL( tmr_register ) },
|
|
{ LSTRKEY( "alarm" ), LFUNCVAL( tmr_alarm ) },
|
|
{ LSTRKEY( "start" ), LFUNCVAL( tmr_start ) },
|
|
{ LSTRKEY( "stop" ), LFUNCVAL( tmr_stop ) },
|
|
#ifdef ENABLE_TIMER_SUSPEND
|
|
{ LSTRKEY( "suspend" ), LFUNCVAL( tmr_suspend ) },
|
|
{ LSTRKEY( "suspend_all" ), LFUNCVAL( tmr_suspend_all ) },
|
|
{ LSTRKEY( "resume" ), LFUNCVAL( tmr_resume ) },
|
|
{ LSTRKEY( "resume_all" ), LFUNCVAL( tmr_resume_all ) },
|
|
#endif
|
|
{ LSTRKEY( "unregister" ), LFUNCVAL( tmr_unregister ) },
|
|
{ LSTRKEY( "state" ), LFUNCVAL( tmr_state ) },
|
|
{ LSTRKEY( "interval" ), LFUNCVAL( tmr_interval ) },
|
|
{ LSTRKEY( "create" ), LFUNCVAL( tmr_create ) },
|
|
#if defined(ENABLE_TIMER_SUSPEND) && defined(SWTMR_DEBUG)
|
|
{ LSTRKEY( "debug" ), LROVAL( tmr_dbg_map ) },
|
|
#endif
|
|
{ LSTRKEY( "ALARM_SINGLE" ), LNUMVAL( TIMER_MODE_SINGLE ) },
|
|
{ LSTRKEY( "ALARM_SEMI" ), LNUMVAL( TIMER_MODE_SEMI ) },
|
|
{ LSTRKEY( "ALARM_AUTO" ), LNUMVAL( TIMER_MODE_AUTO ) },
|
|
{ LNILKEY, LNILVAL }
|
|
};
|
|
|
|
int luaopen_tmr( lua_State *L ){
|
|
int i;
|
|
|
|
luaL_rometatable(L, "tmr.timer", (void *)tmr_dyn_map);
|
|
|
|
for(i=0; i<NUM_TMR; i++){
|
|
alarm_timers[i].lua_ref = LUA_NOREF;
|
|
alarm_timers[i].self_ref = LUA_REFNIL;
|
|
alarm_timers[i].mode = TIMER_MODE_OFF;
|
|
//improve boot speed by using ets_timer_disarm instead of os_timer_disarm to avoid timer registry maintenance call.
|
|
ets_timer_disarm(&alarm_timers[i].os);
|
|
}
|
|
last_rtc_time=system_get_rtc_time(); // Right now is time 0
|
|
last_rtc_time_us=0;
|
|
|
|
//improve boot speed by using ets_timer_disarm instead of os_timer_disarm to avoid timer registry maintenance call.
|
|
ets_timer_disarm(&rtc_timer);
|
|
os_timer_setfn(&rtc_timer, rtc_callback, NULL);
|
|
os_timer_arm(&rtc_timer, 1000, 1);
|
|
return 0;
|
|
}
|
|
|
|
NODEMCU_MODULE(TMR, "tmr", tmr_map, luaopen_tmr);
|