From ab99f700bace05491919324259c9110c7f387af8 Mon Sep 17 00:00:00 2001
From: Gergő J. Miklós
Date: Sat, 29 Sep 2018 01:32:11 +0200
Subject: Existing code & initialcommit.

---
 src/main.c | 161 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 161 insertions(+)
 create mode 100644 src/main.c

(limited to 'src/main.c')

diff --git a/src/main.c b/src/main.c
new file mode 100644
index 0000000..c71c872
--- /dev/null
+++ b/src/main.c
@@ -0,0 +1,161 @@
+
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <unistd.h>
+
+
+#include <linux/i2c-dev.h>
+#include <sys/ioctl.h>
+
+#include "lm75.h"
+#include "hih61xx.h"
+ 
+extern void lm75_list_all(void);
+extern void lm75_read_all(const char *opts);
+extern void lm75_read_one(const char *opts);
+extern void hih61xx_list_all(void);
+extern void hih61xx_read_all(const char *opts); 
+extern void hih61xx_read_one(const char *opts);
+
+
+int file;
+void (*list_all)(void) = NULL;
+void (*read_all)(const char *opts) = NULL;
+void (*read_one)(const char *opts) = NULL;
+
+
+void print_help(void) 
+{
+    printf ("Usage:\n"
+            "   i2sensor <op> <bus> <dev_type> <dev_addr> (<options>)\n"
+            "Aviable options: <op>\n"
+            "   list_all -- list all measured parameters off device\n"
+            "   read_all -- read all measured parameters from device\n"
+            "   read_one -- read the selected parameters from device\n"
+            "Exmples:\n"
+            "   i2sensor read_all <bus> <device> <address> <offset_for_param-01,offset_for_param-02,...>\n"
+            "   i2sensor read_one <bus> <device> <address> <param-id,offset_for_param-id>\n"
+            "   i2sensor read_all 1 lm75 0x4f -1.35,\n"
+            "   i2sensor read_one 1 lm75 0x4f  01,-1.35\n"
+            "" "\n");
+}
+
+void bus_err(int ern)
+{
+    printf("I2C communication(rd) error. errno: %d\n",errno);
+}
+
+void preinit(const char *dev_type)
+{
+    if(!strcmp("lm75", dev_type))
+    {
+        list_all = lm75_list_all;
+        read_all = lm75_read_all;
+        read_one = lm75_read_one;
+    }
+
+    else if(!strcmp("hih61xx", dev_type)) 
+    {                            
+        list_all = hih61xx_list_all;
+        read_all = hih61xx_read_all;
+        read_one = hih61xx_read_one;
+    }
+}
+
+
+
+int main(int argc, char *argv[])
+{
+    
+// >> i2sensor <op> <bus> <dev_typ> <dev_addr> (<others>) 
+// >> i2sensor read_all 0 lm75 4f 1,-1.0;2,+0.2;3,+10;4,-2
+//    read_all, list_all, 
+//    ...read_all...<dev_addr>, <param_id,offs,param_id,offs>    
+//    read_one...<dev_addr>, <param_id,offs>    
+//    ...read_reg_hex... <dev_addr>, <reg_addr,b/w/dw> 
+//    ...read_reg_dec... <dev_addr>, <reg_addr,b/w/dw>
+//    ...set_param... <dev_addr>, <param_id,value_dec>
+//    ...set_reg... <dev_addr>, <reg_addr,value_hex>    
+    
+
+    if(4 < argc && 7 > argc)  //Minimal 5 argument passed
+    {
+        
+        char filename[32];
+        int i;
+        preinit(argv[3]);
+
+        for(i=0;i<strlen(argv[2]);i++)  //Some test on bus address, for safety.
+        {
+            if(!isdigit(argv[2][i]))
+            {
+                printf("\n\tThe BUS Address must be an integer\n\n");
+                print_help();
+                exit (EXIT_FAILURE);
+            }
+        }
+  
+        snprintf(filename, 31, "/dev/i2c-%s", argv[2]);   //Open i2c bus
+        file = open(filename, O_RDWR);
+    
+        if (file < 0) 
+        {
+            printf("\n\tCan't open i2c BUS, are you root?\n\n");    
+            print_help();
+            exit (EXIT_FAILURE);
+        }
+
+
+        if(argv[4][0]=='0' && argv[4][1]=='x') //?
+        {
+      
+            int addr = (int)strtol(argv[4], NULL, 0);       //Open i2c device
+
+            if (ioctl(file, I2C_SLAVE, addr) < 0) 
+            {
+                printf("\n\tCan't open i2c DEVICE, errno: %d\n\n",errno);
+                print_help();
+                exit (EXIT_FAILURE);
+            }
+        }
+        else
+        {
+            printf("\n\tThe DEVICE address must be a hexadecimal number\n\n");
+            print_help();
+            exit (EXIT_FAILURE);
+        }
+        
+        
+        
+        if(!strcmp("list_all",argv[1]) && list_all != NULL)        // If list_all is selected.
+        {
+            list_all();
+        }
+        else if(!strcmp("read_all",argv[1]) && read_all != NULL)
+        {
+            read_all(argv[5]);
+        }
+        else if(!strcmp("read_one",argv[1]) && read_one != NULL && argc == 5)
+        {
+            read_one(argv[5]);
+        }
+        else
+        {
+           // print_help();
+        }
+    
+	close(file);
+  
+  }
+  else
+  {
+    print_help();
+  }
+  return 0;
+}
-- 
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