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#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "i2c-util.h"
#define BIT_SDA 6
#define BIT_SCL 7
int main(int argc, char **argv)
{
i2c_init();
signed char i;
unsigned char id, i2cid;
fputs(" 0 1 2 3 4 5 6 7 8 9 a b c d e f", stdout);
for (id = 0; id < 128; id++) {
i2cid = (id << 1) | 1;
fflush(stdout);
if ((id & 0x0f) == 0) {
printf("\n%02x:", id);
}
set_sda(1);
set_scl(1);
usleep(1000);
set_sda(0);
usleep(1000);
set_scl(0);
verify_sda_low();
verify_scl_low();
for (i = 7; i >= -1; i--) {
if ((i < 0) || (i2cid & (1 << i))) {
set_sda(1);
//verify_sda_high();
} else {
set_sda(0);
//verify_sda_low();
}
usleep(10);
set_scl(1);
usleep(10);
//verify_scl_high();
if (i < 0) {
if (get_status() & (1 << BIT_SDA))
fputs(" --", stdout);
else
printf(" %02x", id);
}
set_scl(0);
usleep(10);
//verify_scl_low();
}
set_scl(1);
usleep(100);
//verify_scl_high();
set_sda(1);
usleep(100);
//verify_sda_high();
}
fputs("\n", stdout);
i2c_deinit();
return 0;
}
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