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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 "deftypes.h"
#include "lm75.h"
#include "hih61xx.h"
#include "hmc5883.h"
#define VERSION 1.22
// extern void lm75_print_help(void);
// extern void lm75_read_all(const char *opts);
// extern void lm75_read_one(const char *opts);
// extern void hih61xx_print_help(void);
// extern void hih61xx_read_all(const char *opts);
// extern void hih61xx_read_one(const char *opts);
uint16 devicef; //# Bus-Device file
uchar temp[256];
void (*print_all)(void) = NULL;
void (*read_all)(const uchar *opts) = NULL;
void (*read_one)(const uchar *opts) = NULL;
void (*conf_set)(const uchar *opts) = NULL;
void print_help(void) {
printf ("\n"
" i2sensors <op> <bus> <dev_type> <dev_addr> (<options>)\n"
"\n"
"Aviable options: <op>\n"
" print_all -- list all available measurement parameters of the device\n"
" read_all -- read all measured parameters from device\n"
" read_one -- read the selected parameters from device\n"
" read_repeat -- read measurements continously\n"
" conf_set -- set the configuration register\n"
"\n"
"Usage:\n"
" i2sensors read_all <bus> <device-type> <address> \n"
" i2sensors read_one <bus> <device-type> <address> <param-id,offset_for_param>\n"
" i2sensors conf_set <bus> <device-type> <address> <reg-id,word-of-bits>\n"
"\n"
"Examples:\n"
" i2sensors read_all 1 lm75 0x4f \n"
" i2sensors read_one 1 lm75 0x4f 00,-1.35\n"
"\n" );
printf ("Version: v%1.2f, build: %s %s\n\n",VERSION,__DATE__,__TIME__);
}
void bus_err(int ern){
printf("I2C communication(rd) error. errno: %d\n",errno);
}
uchar *xchg_data (uchar *buf, uint16 wrlen, uint16 waitlen, uint16 rdlen){ //# [buf] = 32 byte
if(write(devicef, buf, wrlen) != wrlen){ //# write one byte to device
bus_err(errno);
}
usleep(waitlen*1000); //# Wait 10ms for reading
if(read(devicef, buf, rdlen) != rdlen) { //# read the result
bus_err(errno);
}
return buf;
}
void preinit(const uchar *dev_type){
if(!strcmp("lm75", (char *)dev_type)){
print_all = lm75_print_all;
read_all = lm75_read_all;
read_one = lm75_read_one;
conf_set = lm75_conf_set;
}
else if(!strcmp("hih61xx", (char *)dev_type)) {
print_all = hih61xx_print_all;
read_all = hih61xx_read_all;
read_one = hih61xx_read_one;
conf_set = hih61xx_conf_set;
}
// else if(!strcmp("hmc5883", dev_type)) {
// print_all = hmc5883_print_all;
// read_all = hmc5883_read_all;
// read_one = hmc5883_read_one;
// conf_set = hmc5883_conf_set;
// }
}
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 && argc < 10) //Minimum 5 arguments should be passed.
{
char filename[32];
int i;
preinit((uchar *)argv[3]);
for( i = 0; i < strlen(argv[2]); i++){ //# Test on bus address, for error detection.
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]);
devicef = open(filename, O_RDWR); //# Open the i2c bus
if (devicef < 0){
printf("\n\tCan't open i2c BUS. Have you any permission?\n\n");
print_help();
exit (EXIT_FAILURE);
}
if(argv[4][0]=='0' && argv[4][1]=='x'){ //# Hexadecimal representetion of device address
long addr = (int)strtol(argv[4], NULL, 0); //# strtol() is working with hex-string correctly
if (ioctl(devicef, I2C_SLAVE, addr) < 0){ //# Seeking/Opening the device on the Bus
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("print_all",argv[1]) && print_all != NULL){ //# Gets the device's help message.
print_all();
}
else if(!strcmp("read_all",argv[1]) && read_all != NULL){ //# Pulls all readable registers data from device
// read_all(argv[5]);
read_all(NULL);
}
else if(!strcmp("read_one",argv[1]) && read_one != NULL && argc > 5) //# Prints out the selected register
{
read_one((uchar*)argv[5]);
}
else if(!strcmp("conf_set",argv[1]) && conf_set != NULL && argc > 5) //# Prints out the selected register
{
conf_set((uchar*)argv[5]);
}
else //# No other option
{
print_help();
}
close(devicef);
}
else
{
print_help();
}
return 0;
}
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