From 8a0e43e2ba062b35f20ddcd83a7811a9e1a71786 Mon Sep 17 00:00:00 2001
From: guowenxue <guowenxue@gmail.com>
Date: Wed, 31 Jul 2019 17:06:01 +0800
Subject: [PATCH] update mqttd for auto fill-in light and test ok

---
 mqttd/etc/conf.h     |    2 +-
 mqttd/hal/tsl2561.c  |    7 +++----
 mqttd/etc/conf.c     |    3 +++
 mqttd/etc/mqttd.conf |    3 +++
 mqttd/main.c         |   43 +++++++++++++++++++++++++++++++++----------
 5 files changed, 43 insertions(+), 15 deletions(-)

diff --git a/mqttd/etc/conf.c b/mqttd/etc/conf.c
index d9df566..2907a2e 100644
--- a/mqttd/etc/conf.c
+++ b/mqttd/etc/conf.c
@@ -182,6 +182,9 @@
 
         ctx->hwconf.light_intval = iniparser_getint(ini, "hardware:light_intval", 20);
         log_nrml("Parser inbreak fill-in light interval time [%d]\n", ctx->hwconf.light_intval);
+
+        ctx->hwconf.lux_threshold = iniparser_getdouble(ini, "hardware:lux_threshold", 0.1);
+        log_nrml("Parser fill-in light threshold lux [%.03f]\n", ctx->hwconf.lux_threshold);
     }
 
 
diff --git a/mqttd/etc/conf.h b/mqttd/etc/conf.h
index 574633b..5a5d0c3 100644
--- a/mqttd/etc/conf.h
+++ b/mqttd/etc/conf.h
@@ -66,7 +66,7 @@
     unsigned char  inbreak_beep; /* enable or diable beep when detect inbreak */
     unsigned char  fillin_light; /* fill-in light when detect inbrank or not */
     unsigned char  light_intval; /* fill-in light interval time, unit second  */
-
+    double         lux_threshold; /* Lux sensor detect value smaller than treshold will fill-in light  */
 } hwconf_t;  
 
 
diff --git a/mqttd/etc/mqttd.conf b/mqttd/etc/mqttd.conf
index 2675fbd..cb3e78c 100644
--- a/mqttd/etc/mqttd.conf
+++ b/mqttd/etc/mqttd.conf
@@ -42,6 +42,9 @@
 # 继电器补光时长, 单位秒. 红外探测到人后电平为此时间大概是35秒左右
 light_intval=35
 
+# 光强传感器采样值低于该阈值将开灯
+lux_threshold=0.01
+
 
 [logger]
 
diff --git a/mqttd/hal/tsl2561.c b/mqttd/hal/tsl2561.c
index c83501f..9787d98 100644
--- a/mqttd/hal/tsl2561.c
+++ b/mqttd/hal/tsl2561.c
@@ -22,6 +22,7 @@
 #include <errno.h>
 #include <time.h>
 
+#include "hal.h"
 #include "tsl2561.h"
 
 
@@ -37,11 +38,11 @@
     tsl_fd = wiringPiI2CSetup(TSL2561_I2C_ADDR);
     if(tsl_fd < 0)
     {
-        printf("TSL2561 I2C setup failure: %s\n", strerror(errno));
+        log_err("TSL2561 I2C setup failure: %s\n", strerror(errno));
     }
     else
     {
-        printf("TSL2561 initialise ok, tsl_fd=%d\n", tsl_fd);
+        log_err("TSL2561 initialise ok, tsl_fd=%d\n", tsl_fd);
     }
 
 
@@ -102,8 +103,6 @@
         lux = 0.0;
 
 OUT:
-    printf("TSLl2561 get lux: %.3f\n", lux);
-
     wiringPiI2CWrite(tsl_fd, CONTROL_REG);
     wiringPiI2CWrite(tsl_fd, POWER_DOWN);
 
diff --git a/mqttd/main.c b/mqttd/main.c
index dd643df..98cf2d6 100644
--- a/mqttd/main.c
+++ b/mqttd/main.c
@@ -29,7 +29,9 @@
 #define PROG_VERSION               "v1.0.0"
 #define DAEMON_PIDFILE             "/tmp/.mqtt.pid"
 
-int g_relay_flag = 0;  /* relay already turn on and wait to off  */
+#define FLAG_DETECTD        (1<<0)
+#define FLAG_RELAYON        (1<<1)
+int g_breakin_flag = 0;  /* relay already turn on and wait to off  */
 
 int check_set_program_running(int daemon);
 void *mqtt_sub_worker(void *args);
@@ -53,9 +55,13 @@
 
 void turn_light_off(int signum)
 {
-    log_nrml("fill-in light timeout and turn light off now\n");
-    turn_relay(OFF);
-    g_relay_flag = 0;
+    if( g_breakin_flag&FLAG_RELAYON ) 
+    {
+        log_nrml("fill-in light timeout and turn light off now\n");
+        turn_relay(OFF);
+    }
+
+    g_breakin_flag = 0;
 }
 
 int main (int argc, char **argv)
@@ -159,28 +165,45 @@
     {
         msleep(1000);
 
-        if( ctx.hwconf.infrared_pin )
+        if( ctx.hwconf.infrared_pin && !g_breakin_flag )
         {
             //log_nrml("infrared dected human incoming\n");
-            if( !g_relay_flag && infrared_detect(1500) )
+            if( infrared_detect(1000) )
             {
                 log_nrml("Someone incoming detected by infrared\n");
+                g_breakin_flag |= FLAG_DETECTD; 
+                
+                /* setup alarm to turn relay off or clear the flag */
+                alarm(ctx.hwconf.light_intval);
+
                 if( ctx.hwconf.inbreak_beep )
                 {
                     turn_beep(ctx.hwconf.beep_times);
                 }
 
-                if( ctx.hwconf.fillin_light==FILLIN_LIGHT_ON && !g_relay_flag )
+                if( ctx.hwconf.fillin_light==FILLIN_LIGHT_ON && !g_breakin_flag )
                 {
                     log_nrml("Force fill-in light on and will be off in [%d] seconds\n", ctx.hwconf.light_intval);
                     turn_relay(ON);
-                    g_relay_flag = 1;
-                    alarm(ctx.hwconf.light_intval);
+                    g_breakin_flag |= FLAG_RELAYON;
                 }
                 else if( ctx.hwconf.fillin_light==FILLIN_LIGHT_AUTO && ctx.hwconf.lux )
                 {
                     lux = tsl2561_get_lux(); 
-                    log_nrml("TSL2516 lux sensor detect illumination intensity %.3f lux\n", lux);
+                    log_nrml("TSL2516 detect illumination intensity %.3flux and threshold %.3flux\n", 
+                            lux, ctx.hwconf.lux_threshold);
+
+                    /* only lux<0.01 will turn on light */
+                    if( lux-0.001 > ctx.hwconf.lux_threshold)
+                    {
+                        log_nrml("Illumination intensity enuf, no need fill-in light\n");
+                    }
+                    else
+                    {
+                        log_nrml("Auto fill-in light on and will be off in [%d] seconds\n", ctx.hwconf.light_intval);
+                        turn_relay(ON);
+                        g_breakin_flag |= FLAG_RELAYON;
+                    }
                 }
 
             }

--
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