/*guys, srsly, turn on warnings in the makefile*/ #if defined(__GNUC__) #pragma GCC diagnostic warning "-Wall" #pragma GCC diagnostic warning "-Wextra" #pragma GCC diagnostic ignored "-Wunused-parameter" #endif /*------------------------------------- NEW TIMER API --------------------------------------- tmr.wdclr() -- not changed tmr.now() -- not changed tmr.time() -- not changed tmr.delay() -- not changed tmr.alarm() -- not changed tmr.stop() -- changed, see below. use tmr.unregister for old functionality tmr.register(id, interval, mode, function) bind function with timer and set the interval in ms the mode can be: tmr.ALARM_SINGLE for a single run alarm tmr.ALARM_SEMI for a multiple single run alarm tmr.ALARM_AUTO for a repating alarm tmr.register does NOT start the timer tmr.alarm is a tmr.register & tmr.start macro tmr.unregister(id) stop alarm, unbind function and clean up memory not needed for ALARM_SINGLE, as it unregisters itself tmr.start(id) ret: bool start a alarm, returns true on success tmr.stop(id) ret: bool stops a alarm, returns true on success this call dose not free any memory, to do so use tmr.unregister stopped alarms can be started with start tmr.interval(id, interval) set alarm interval, running alarm will be restarted tmr.state(id) ret: (bool, int) or nil returns alarm status (true=started/false=stopped) and mode nil if timer is unregistered tmr.softwd(int) set a negative value to stop the timer any other value starts the timer, when the countdown reaches zero, the device restarts the timer units are seconds */ #define MIN_OPT_LEVEL 2 #include "lualib.h" #include "lauxlib.h" #include "platform.h" #include "auxmods.h" #include "lrotable.h" #include "lrodefs.h" #include "c_types.h" #define TIMER_MODE_OFF 3 #define TIMER_MODE_SINGLE 0 #define TIMER_MODE_SEMI 2 #define TIMER_MODE_AUTO 1 #define TIMER_IDLE_FLAG (1<<7) //well, the following are my assumptions //why, oh why is there no good documentation //chinese companies should learn from Atmel extern void ets_timer_arm_new(os_timer_t* t, uint32_t milliseconds, uint32_t repeat_flag, uint32_t isMstimer); extern void ets_timer_disarm(os_timer_t* t); extern void ets_timer_setfn(os_timer_t* t, os_timer_func_t *f, void *arg); extern void ets_delay_us(uint32_t us); extern uint32_t system_get_time(); extern uint32_t platform_tmr_exists(uint32_t t); extern uint32_t system_rtc_clock_cali_proc(); extern uint32_t system_get_rtc_time(); extern void system_restart(); //in fact lua_State is constant, it's pointless to pass it around //but hey, whatever, I'll just pass it, still we waste 28B here typedef struct{ os_timer_t os; lua_State* L; sint32_t lua_ref; uint32_t interval; uint8_t mode; }timer_struct_t; typedef timer_struct_t* timer_t; //everybody just love unions! riiiiight? static union { uint64_t block; uint32_t part[2]; } rtc_time; static sint32_t soft_watchdog = -1; static timer_struct_t alarm_timers[NUM_TMR]; static os_timer_t rtc_timer; static void alarm_timer_common(void* arg){ timer_t tmr = &alarm_timers[(uint32_t)arg]; if(tmr->lua_ref == LUA_NOREF || tmr->L == NULL) return; lua_rawgeti(tmr->L, LUA_REGISTRYINDEX, tmr->lua_ref); //if the timer was set to single run we clean up after it if(tmr->mode == TIMER_MODE_SINGLE){ luaL_unref(tmr->L, LUA_REGISTRYINDEX, tmr->lua_ref); tmr->lua_ref = LUA_NOREF; tmr->mode = TIMER_MODE_OFF; }else if(tmr->mode == TIMER_MODE_SEMI){ tmr->mode |= TIMER_IDLE_FLAG; } lua_call(tmr->L, 0, 0); } // Lua: tmr.delay( us ) static int tmr_delay( lua_State* L ){ sint32_t us = luaL_checkinteger(L, 1); if(us <= 0) return luaL_error(L, "wrong arg range"); while(us >= 1000000){ us -= 1000000; os_delay_us(1000000); system_soft_wdt_feed (); } if(us>0){ os_delay_us(us); system_soft_wdt_feed (); } return 0; } // Lua: tmr.now() , return system timer in us static int tmr_now(lua_State* L){ uint32_t now = 0x7FFFFFFF & system_get_time(); lua_pushinteger(L, now); return 1; } // Lua: tmr.register( id, interval, mode, function ) static int tmr_register(lua_State* L){ uint32_t id = luaL_checkinteger(L, 1); MOD_CHECK_ID(tmr, id); sint32_t interval = luaL_checkinteger(L, 2); uint8_t mode = luaL_checkinteger(L, 3); //validate arguments uint8_t args_valid = interval <= 0 || (mode != TIMER_MODE_SINGLE && mode != TIMER_MODE_SEMI && mode != TIMER_MODE_AUTO) || (lua_type(L, 4) != LUA_TFUNCTION && lua_type(L, 4) != LUA_TLIGHTFUNCTION); if(args_valid) return luaL_error(L, "wrong arg range"); //get the lua function reference lua_pushvalue(L, 4); sint32_t ref = luaL_ref(L, LUA_REGISTRYINDEX); timer_t tmr = &alarm_timers[id]; if(!(tmr->mode & TIMER_IDLE_FLAG) && tmr->mode != TIMER_MODE_OFF) ets_timer_disarm(&tmr->os); //there was a bug in this part, the second part of the following condition was missing if(tmr->lua_ref != LUA_NOREF && tmr->lua_ref != ref) luaL_unref(L, LUA_REGISTRYINDEX, tmr->lua_ref); tmr->lua_ref = ref; tmr->mode = mode|TIMER_IDLE_FLAG; tmr->interval = interval; tmr->L = L; ets_timer_setfn(&tmr->os, alarm_timer_common, (void*)id); return 0; } // Lua: tmr.start( id ) static int tmr_start(lua_State* L){ uint8_t id = luaL_checkinteger(L, 1); MOD_CHECK_ID(tmr,id); timer_t tmr = &alarm_timers[id]; //we return false if the timer is not idle if(!(tmr->mode&TIMER_IDLE_FLAG)){ lua_pushboolean(L, 0); }else{ tmr->mode &= ~TIMER_IDLE_FLAG; ets_timer_arm_new(&tmr->os, tmr->interval, tmr->mode==TIMER_MODE_AUTO, 1); lua_pushboolean(L, 1); } return 1; } // Lua: tmr.alarm( id, interval, repeat, function ) static int tmr_alarm(lua_State* L){ tmr_register(L); return tmr_start(L); } // Lua: tmr.stop( id ) static int tmr_stop(lua_State* L){ uint8_t id = luaL_checkinteger(L, 1); MOD_CHECK_ID(tmr,id); timer_t tmr = &alarm_timers[id]; //we return false if the timer is idle (of not registered) if(!(tmr->mode & TIMER_IDLE_FLAG) && tmr->mode != TIMER_MODE_OFF){ tmr->mode |= TIMER_IDLE_FLAG; ets_timer_disarm(&tmr->os); lua_pushboolean(L, 1); }else{ lua_pushboolean(L, 0); } return 1; } // Lua: tmr.unregister( id ) static int tmr_unregister(lua_State* L){ uint8_t id = luaL_checkinteger(L, 1); MOD_CHECK_ID(tmr,id); timer_t tmr = &alarm_timers[id]; if(!(tmr->mode & TIMER_IDLE_FLAG) && tmr->mode != TIMER_MODE_OFF) ets_timer_disarm(&tmr->os); if(tmr->lua_ref != LUA_NOREF) luaL_unref(L, LUA_REGISTRYINDEX, tmr->lua_ref); tmr->lua_ref = LUA_NOREF; tmr->mode = TIMER_MODE_OFF; return 0; } // Lua: tmr.interval( id, interval ) static int tmr_interval(lua_State* L){ uint8_t id = luaL_checkinteger(L, 1); MOD_CHECK_ID(tmr,id); timer_t tmr = &alarm_timers[id]; sint32_t interval = luaL_checkinteger(L, 2); if(interval <= 0) return luaL_error(L, "wrong arg range"); if(tmr->mode != TIMER_MODE_OFF){ tmr->interval = interval; if(!(tmr->mode&TIMER_IDLE_FLAG)){ ets_timer_disarm(&tmr->os); ets_timer_arm_new(&tmr->os, tmr->interval, tmr->mode==TIMER_MODE_AUTO, 1); } } return 0; } // Lua: tmr.state( id ) static int tmr_state(lua_State* L){ uint8_t id = luaL_checkinteger(L, 1); MOD_CHECK_ID(tmr,id); timer_t tmr = &alarm_timers[id]; if(tmr->mode == TIMER_MODE_OFF){ lua_pushnil(L); return 1; } lua_pushboolean(L, (tmr->mode&TIMER_IDLE_FLAG)==0); lua_pushinteger(L, tmr->mode&(~TIMER_IDLE_FLAG)); return 2; } /*I left the led comments 'couse I don't know why they are here*/ // extern void update_key_led(); // Lua: tmr.wdclr() static int tmr_wdclr( lua_State* L ){ system_soft_wdt_feed (); // update_key_led(); return 0; } //system_rtc_clock_cali_proc() returns //a fixed point value (12 bit fraction part) //it tells how many rtc clock ticks represent 1us. //the high 64 bits of the uint64_t multiplication //are unnedded (I did the math) static uint32_t rtc2sec(uint64_t rtc){ uint64_t aku = system_rtc_clock_cali_proc(); aku *= rtc; return (aku>>12)/1000000; } //the following function workes, I just wrote it and didn't use it. /*static uint64_t sec2rtc(uint32_t sec){ uint64_t aku = (1<<20)/system_rtc_clock_cali_proc(); aku *= sec; return (aku>>8)*1000000; }*/ inline static void rtc_timer_update(){ uint32_t current = system_get_rtc_time(); if(rtc_time.part[0] > current) //overflow check rtc_time.part[1]++; rtc_time.part[0] = current; } void rtc_callback(void *arg){ rtc_timer_update(); if(soft_watchdog > 0){ soft_watchdog--; if(soft_watchdog == 0) system_restart(); } } // Lua: tmr.time() , return rtc time in second static int tmr_time( lua_State* L ){ rtc_timer_update(); lua_pushinteger(L, rtc2sec(rtc_time.block)); return 1; } // Lua: tmr.softwd( value ) static int tmr_softwd( lua_State* L ){ soft_watchdog = luaL_checkinteger(L, 1); return 0; } // Module function map const LUA_REG_TYPE tmr_map[] = { { LSTRKEY( "delay" ), LFUNCVAL( tmr_delay ) }, { LSTRKEY( "now" ), LFUNCVAL( tmr_now ) }, { LSTRKEY( "wdclr" ), LFUNCVAL( tmr_wdclr ) }, { LSTRKEY( "softwd" ), LFUNCVAL( tmr_softwd ) }, { 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 ) }, { LSTRKEY( "unregister" ), LFUNCVAL ( tmr_unregister ) }, { LSTRKEY( "state" ), LFUNCVAL ( tmr_state ) }, { LSTRKEY( "interval" ), LFUNCVAL ( tmr_interval) }, #if LUA_OPTIMIZE_MEMORY > 0 { LSTRKEY( "ALARM_SINGLE" ), LNUMVAL( TIMER_MODE_SINGLE ) }, { LSTRKEY( "ALARM_SEMI" ), LNUMVAL( TIMER_MODE_SEMI ) }, { LSTRKEY( "ALARM_AUTO" ), LNUMVAL( TIMER_MODE_AUTO ) }, #endif { LNILKEY, LNILVAL } }; LUALIB_API int luaopen_tmr( lua_State *L ){ int i; for(i=0; i 0 return 0; #else luaL_register( L, AUXLIB_TMR, tmr_map ); lua_pushvalue( L, -1 ); lua_setmetatable( L, -2 ); MOD_REG_NUMBER( L, "ALARM_SINGLE", TIMER_MODE_SINGLE ); MOD_REG_NUMBER( L, "ALARM_SEMI", TIMER_MODE_SEMI ); MOD_REG_NUMBER( L, "ALARM_AUTO", TIMER_MODE_AUTO ); return 1; #endif }