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#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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