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-rw-r--r--src/deftypes.h1
-rw-r--r--src/main.c151
2 files changed, 93 insertions, 59 deletions
diff --git a/src/deftypes.h b/src/deftypes.h
index c53cd57..af9b3e4 100644
--- a/src/deftypes.h
+++ b/src/deftypes.h
@@ -18,7 +18,6 @@
#define uchar __u_char
-
#define ulong __u_long
diff --git a/src/main.c b/src/main.c
index 8414892..10ca27b 100644
--- a/src/main.c
+++ b/src/main.c
@@ -12,6 +12,7 @@
#include <linux/i2c-dev.h>
#include <linux/i2c.h>
+#include <i2c/smbus.h>
#include <sys/ioctl.h>
#include "deftypes.h"
@@ -30,11 +31,22 @@
// extern void hih61xx_print_help(void);
// extern void hih61xx_read_all(const char *opts);
// extern void hih61xx_read_one(const char *opts);
+
+// >> 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>
+
-
-uint16 devicef; //# Bus-Device file
-uchar temp[256];
+__int16_t devicef; //# Bus-Device file
+long addr=0, funcs=0;
+//__uint8_t temp[256];
void (*print_all)(void) = NULL;
void (*read_all)(const uchar *opts) = NULL;
void (*read_one)(const uchar *opts) = NULL;
@@ -51,6 +63,7 @@ void print_help(void) {
" read_one -- read the selected parameters from device\n"
" read_repeat -- read measurements continously\n"
" conf_set -- set the configuration register\n"
+ " get_info -- List I2C driver functions\n"
"\n"
"Usage:\n"
" i2sensors read_all <bus> <device-type> <address> \n"
@@ -64,10 +77,12 @@ void print_help(void) {
printf ("Version: v%1.2f, build: [%s] (gcc %s) \n\n",VERSION,_BUILD_TIME_,__VERSION__);
}
+/*
void bus_err(int ern){
printf("I2C communication(rd) error. errno: %d\n",errno);
//fprintf (stderr, "Internal error %d at %s, line %d. (function: %s/%s)\n", ern, __FILE__, __LINE__, __func__, __FUNCTION__);
}
+*/
uchar *xchg_data (uchar *buf, uint16 wrlen, uint16 waitlen, uint16 rdlen){ //# [buf] = 32 byte
@@ -81,11 +96,12 @@ uchar *xchg_data (uchar *buf, uint16 wrlen, uint16 waitlen, uint16 rdlen){
//perror("I2C communication(rd) error.");
fprintf (stderr, "I2C read error: [NO: %d, MSG: %s] at %s, line %d. (function: %s)\n", errno, strerror(errno), __FILE__, __LINE__, __func__);
}
- return buf;
+ return buf;
}
-void preinit(const uchar *dev_type){
+
+void preinit(const char *dev_type){
if(!strcmp("lm75", (char *)dev_type)){
print_all = lm75_print_all;
@@ -111,86 +127,105 @@ void preinit(const uchar *dev_type){
-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>
-
+int main( int argc, char *argv[] ){
- if(4 < argc && argc < 10) //Minimum 5 arguments should be passed.
- {
+ if( (argc == 3 && !strcmp("get_info", argv[1])) || (4 < argc && argc < 10)){ //Minimal 5 arguments should be passed. (or get_info is called)
- char filename[32];
- int i;
- preinit((uchar *)argv[3]);
-
- for( i = 0; i < strlen(argv[2]); i++){ //# Test on bus address, for error detection.
+ char filename[256];
+ int i, file1;
+
+/* 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);
+ exit(EXIT_FAILURE);
}
}
- snprintf(filename, 31, "/dev/i2c-%s", argv[2]);
- devicef = open(filename, O_RDWR); //# Open the i2c bus
-
+*/
+ snprintf(filename, 256, "/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);
+ exit(EXIT_FAILURE);
}
+ if (ioctl(devicef, I2C_FUNCS, &funcs) < 0) { //Get i2c device features
+ fprintf (stderr, "\n\tAdapter function error [ERR: %d, MSG: %s] at %s, line %d. \n", errno, strerror(errno), __FILE__, __LINE__);
+ 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( argc > 5 ){ //If not get_info was called
+ if(argv[4][0]=='0' && argv[4][1]=='x'){ //# Hexadecimal representetion of device address
- 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);
+ 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);
+ fprintf (stderr, "\n\tCan't open i2c DEVICE! [ERR: %d, MSG: %s] at %s, line %d. \n", errno, strerror(errno), __FILE__, __LINE__);
+ exit(EXIT_FAILURE);
+ }
+ } else {
+ printf("\n\tThe DEVICE address must be a hexadecimal number\n\n");
+ exit(EXIT_FAILURE);
}
- } else {
- printf("\n\tThe DEVICE address must be a hexadecimal number\n\n");
- print_help();
- exit (EXIT_FAILURE);
+ preinit((char *)argv[3]); //Initialization of subcommands
}
-
- if(!strcmp("print_all",argv[1]) && print_all != NULL){ //# Gets the device's help message.
+ 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
+
+ } 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
- {
+
+ } 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
- {
+
+ } 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
- {
+
+ } else if ( !strcmp("get_info", argv[1]) ){
+
+ snprintf(filename, 256, "/sys/class/i2c-dev/i2c-%s/name", argv[2]);
+ file1 = open(filename, O_RDONLY);
+ i = read(file1, filename, 256 );
+ if(i > 0) { filename[i-1] = '\0'; }
+ close(file1);
+
+ printf("\n Functions, supported by the [%s] adapter:\n\n", filename);
+
+ printf("\tI2C_FUNC_I2C -- ");
+ if (funcs & I2C_FUNC_I2C){ printf("YES\n"); } else { printf("NO\n"); }
+ printf("\tI2C_FUNC_SMBUS_BYTE -- ");
+ if (funcs & I2C_FUNC_SMBUS_BYTE){ printf("YES\n"); } else { printf("NO\n"); }
+ printf("\tI2C_FUNC_SMBUS_BYTE_DATA -- ");
+ if (funcs & I2C_FUNC_SMBUS_BYTE_DATA){ printf("YES\n"); } else { printf("NO\n"); }
+ printf("\tI2C_FUNC_SMBUS_WORD_DATA -- ");
+ if (funcs & I2C_FUNC_SMBUS_WORD_DATA){ printf("YES\n"); } else { printf("NO\n"); }
+ printf("\tI2C_FUNC_SMBUS_BLOCK_DATA -- ");
+ if (funcs & I2C_FUNC_SMBUS_BLOCK_DATA){ printf("YES\n"); } else { printf("NO\n"); }
+ printf("\tI2C_FUNC_SMBUS_I2C_BLOCK -- ");
+ if (funcs & I2C_FUNC_SMBUS_I2C_BLOCK){ printf("YES\n"); } else { printf("NO\n"); }
+ printf("\tI2C_FUNC_SMBUS_EMUL -- ");
+ if (funcs & I2C_FUNC_SMBUS_EMUL){ printf("YES\n"); } else { printf("NO\n"); }
+ printf("\tI2C_FUNC_NOSTART -- ");
+ if (funcs & I2C_FUNC_NOSTART){ printf("YES\n"); } else { printf("NO\n"); }
+ printf("\tI2C_FUNC_10BIT_ADDR -- ");
+ if (funcs & I2C_FUNC_10BIT_ADDR){ printf("YES\n"); } else { printf("NO\n"); }
+ printf("\tI2C_FUNC_PROTOCOL_MANGLING -- ");
+ if (funcs & I2C_FUNC_PROTOCOL_MANGLING){ printf(" YES\n"); } else { printf("NO\n"); }
+
+ printf("\n\tMore info in Linux Kernel Documentation: i2c/functionality.rst\n\n");
+
+
+ } else { //# No other option
print_help();
}
close(devicef);
- }
- else
- {
+ } else {
print_help();
}
return 0;
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-21 18:34:46 +0000