int i2ccmd_bus(FAR struct i2ctool_s *i2ctool, int argc, char **argv)
{
FAR struct i2c_dev_s *dev;
int i;
i2ctool_printf(i2ctool, " BUS EXISTS?\n");
for (i = CONFIG_I2CTOOL_MINBUS; i <= CONFIG_I2CTOOL_MAXBUS; i++) {
dev = up_i2cinitialize(i);
if (dev) {
i2ctool_printf(i2ctool, "Bus %d: YES\n", i);
(void)up_i2cuninitialize(dev);
} else {
i2ctool_printf(i2ctool, "Bus %d: NO\n", i);
}
}
return OK;
}
static int i2ccmd_unrecognized(FAR struct i2ctool_s *i2ctool, int argc, char **argv)
{
i2ctool_printf(i2ctool, g_i2ccmdnotfound, argv[0]);
return ERROR;
}
static int i2ccmd_help(FAR struct i2ctool_s *i2ctool, int argc, char **argv)
{
const struct cmdmap_s *ptr;
i2ctool_printf(i2ctool, "Usage: i2c <cmd> [arguments]\n");
i2ctool_printf(i2ctool, "Where <cmd> is one of:\n\n");
for (ptr = g_i2ccmds; ptr->cmd; ptr++)
{
if (ptr->usage)
{
i2ctool_printf(i2ctool, " %s: %s %s\n", ptr->desc, ptr->cmd, ptr->usage);
}
else
{
i2ctool_printf(i2ctool, " %s: %s\n", ptr->desc, ptr->cmd);
}
}
i2ctool_printf(i2ctool, "\nWhere common \"sticky\" OPTIONS include:\n");
i2ctool_printf(i2ctool, " [-a addr] is the I2C device address (hex). "
"Default: %02x Current: %02x\n",
CONFIG_I2CTOOL_MINADDR, i2ctool->addr);
i2ctool_printf(i2ctool, " [-b bus] is the I2C bus number (decimal). "
"Default: %d Current: %d\n",
CONFIG_I2CTOOL_MINBUS, i2ctool->bus);
i2ctool_printf(i2ctool, " [-r regaddr] is the I2C device register address (hex). "
"Default: 00 Current: %02x\n",
i2ctool->regaddr);
i2ctool_printf(i2ctool, " [-w width] is the data width (8 or 16 decimal). "
"Default: 8 Current: %d\n",
i2ctool->width);
i2ctool_printf(i2ctool, " [-s|n], send/don't send start between command and data. "
"Default: -n Current: %s\n",
i2ctool->start ? "-s" : "-n");
i2ctool_printf(i2ctool, " [-i|j], Auto increment|don't increment regaddr on repititions. "
"Default: NO Current: %s\n",
i2ctool->autoincr ? "YES" : "NO");
i2ctool_printf(i2ctool, " [-f freq] I2C frequency. "
"Default: %d Current: %d\n",
CONFIG_I2CTOOL_DEFFREQ, i2ctool->freq);
i2ctool_printf(i2ctool, "\nNOTES:\n");
#ifndef CONFIG_DISABLE_ENVIRON
i2ctool_printf(i2ctool, "o An environment variable like $PATH may be used for any argument.\n");
#endif
i2ctool_printf(i2ctool, "o Arguments are \"sticky\". For example, once the I2C address is\n");
i2ctool_printf(i2ctool, " specified, that address will be re-used until it is changed.\n");
i2ctool_printf(i2ctool, "\nWARNING:\n");
i2ctool_printf(i2ctool, "o The I2C dev command may have bad side effects on your I2C devices.\n");
i2ctool_printf(i2ctool, " Use only at your own risk.\n");
return OK;
}
int i2ccmd_verf(FAR struct i2ctool_s *i2ctool, int argc, FAR char **argv)
{
FAR struct i2c_dev_s *dev;
FAR char *ptr;
uint16_t rdvalue;
uint8_t regaddr;
bool addrinaddr;
long wrvalue;
long repititions;
int nargs;
int argndx;
int ret;
int i;
/* Parse any command line arguments */
for (argndx = 1; argndx < argc; )
{
/* Break out of the look when the last option has been parsed */
ptr = argv[argndx];
if (*ptr != '-')
{
break;
}
/* Otherwise, check for common options */
nargs = common_args(i2ctool, &argv[argndx]);
if (nargs < 0)
{
return ERROR;
}
argndx += nargs;
}
/* The options may be followed by the optional wrvalue to be written. If omitted, then
* the register address will be used as the wrvalue, providing an address-in-address
* test.
*/
addrinaddr = true;
wrvalue = 0;
if (argndx < argc)
{
wrvalue = strtol(argv[argndx], NULL, 16);
if (i2ctool->width == 8)
{
if (wrvalue < 0 || wrvalue > 255)
{
i2ctool_printf(i2ctool, g_i2cargrange, argv[0]);
return ERROR;
}
}
else if (wrvalue < 0 || wrvalue > 65535)
{
i2ctool_printf(i2ctool, g_i2cargrange, argv[0]);
return ERROR;
}
addrinaddr = false;
argndx++;
}
/* There may be one more thing on the command line: The repitition
* count.
*/
repititions = 1;
if (argndx < argc)
{
repititions = strtol(argv[argndx], NULL, 16);
if (repititions < 1)
{
i2ctool_printf(i2ctool, g_i2cargrange, argv[0]);
return ERROR;
}
argndx++;
}
if (argndx != argc)
{
i2ctool_printf(i2ctool, g_i2ctoomanyargs, argv[0]);
return ERROR;
}
/* Get a handle to the I2C bus */
dev = up_i2cinitialize(i2ctool->bus);
if (!dev)
{
i2ctool_printf(i2ctool, "Failed to get bus %d\n", i2ctool->bus);
return ERROR;
}
/* Set the frequency and the address (NOTE: Only 7-bit address supported now) */
I2C_SETFREQUENCY(dev, i2ctool->freq);
I2C_SETADDRESS(dev, i2ctool->addr, 7);
/* Loop for the requested number of repititions */
regaddr = i2ctool->regaddr;
ret = OK;
for (i = 0; i < repititions; i++)
{
/* If we are performing an address-in-address test, then use the register
* address as the value to write.
*/
if (addrinaddr)
{
wrvalue = regaddr;
}
/* Write to the I2C bus */
ret = i2ctool_set(i2ctool, dev, regaddr, (uint16_t)wrvalue);
if (ret == OK)
{
/* Read the value back from the I2C bus */
ret = i2ctool_get(i2ctool, dev, regaddr, &rdvalue);
}
/* Display the result */
if (ret == OK)
{
i2ctool_printf(i2ctool, "VERIFY Bus: %d Addr: %02x Subaddr: %02x Wrote: ",
i2ctool->bus, i2ctool->addr, i2ctool->regaddr);
if (i2ctool->width == 8)
{
i2ctool_printf(i2ctool, "%02x Read: %02x", (int)wrvalue, (int)rdvalue);
}
else
{
i2ctool_printf(i2ctool, "%04x Read: %04x", (int)wrvalue, (int)rdvalue);
}
if (wrvalue != rdvalue)
{
i2ctool_printf(i2ctool, " <<< FAILURE\n");
}
else
{
i2ctool_printf(i2ctool, "\n");
}
}
else
{
i2ctool_printf(i2ctool, g_i2cxfrerror, argv[0], -ret);
break;
}
/* Auto-increment the address if so configured */
if (i2ctool->autoincr)
{
regaddr++;
}
}
(void)up_i2cuninitialize(dev);
return ret;
}
int common_args(FAR struct i2ctool_s *i2ctool, FAR char **arg)
{
FAR char *ptr = *arg;
long value;
int ret;
if (ptr[0] != '-')
{
goto invalid_argument;
}
switch (ptr[1])
{
case 'a':
ret = arg_hex(arg, &value);
if (value < CONFIG_I2CTOOL_MINADDR || value > CONFIG_I2CTOOL_MAXADDR)
{
goto out_of_range;
}
i2ctool->addr = (uint8_t) value;
return ret;
case 'b':
ret = arg_decimal(arg, &value);
if (value < CONFIG_I2CTOOL_MINBUS || value > CONFIG_I2CTOOL_MAXBUS)
{
goto out_of_range;
}
i2ctool->bus = (uint8_t) value;
return ret;
case 'f':
ret = arg_decimal(arg, &value);
if (value == 0)
{
goto out_of_range;
}
i2ctool->freq = value;
return ret;
case 'i':
i2ctool->autoincr = true;
return 1;
case 'j':
i2ctool->autoincr = false;
return 1;
case 'n':
i2ctool->start = false;
return 1;
case 'r':
ret = arg_hex(arg, &value);
if (value < 0 || value > CONFIG_I2CTOOL_MAXREGADDR)
{
goto out_of_range;
}
i2ctool->regaddr = (uint8_t) value;
return ret;
case 's':
i2ctool->start = true;
return 1;
case 'w':
ret = arg_decimal(arg, &value);
if (value != 8 && value != 16)
{
goto out_of_range;
}
i2ctool->width = (uint8_t) value;
return ret;
default:
goto invalid_argument;
}
invalid_argument:
i2ctool_printf(i2ctool, g_i2carginvalid, ptr);
return ERROR;
out_of_range:
i2ctool_printf(i2ctool, g_i2cargrange, ptr);
return ERROR;
}
int i2ccmd_get(FAR struct i2ctool_s *i2ctool, int argc, FAR char **argv)
{
FAR char *ptr;
uint16_t result;
uint8_t regaddr;
long repititions;
int nargs;
int argndx;
int ret;
int fd;
int i;
/* Parse any command line arguments */
for (argndx = 1; argndx < argc; )
{
/* Break out of the look when the last option has been parsed */
ptr = argv[argndx];
if (*ptr != '-')
{
break;
}
/* Otherwise, check for common options */
nargs = common_args(i2ctool, &argv[argndx]);
if (nargs < 0)
{
return ERROR;
}
argndx += nargs;
}
/* There may be one more thing on the command line: The repitition
* count.
*/
repititions = 1;
if (argndx < argc)
{
repititions = strtol(argv[argndx], NULL, 16);
if (repititions < 1)
{
i2ctool_printf(i2ctool, g_i2cargrange, argv[0]);
return ERROR;
}
argndx++;
}
if (argndx != argc)
{
i2ctool_printf(i2ctool, g_i2ctoomanyargs, argv[0]);
return ERROR;
}
/* Get a handle to the I2C bus */
fd = i2cdev_open(i2ctool->bus);
if (fd < 0)
{
i2ctool_printf(i2ctool, "Failed to get bus %d\n", i2ctool->bus);
return ERROR;
}
/* Loop for the requested number of repititions */
regaddr = i2ctool->regaddr;
ret = OK;
for (i = 0; i < repititions; i++)
{
/* Read from the I2C bus */
ret = i2ctool_get(i2ctool, fd, regaddr, &result);
/* Display the result */
if (ret == OK)
{
i2ctool_printf(i2ctool, "READ Bus: %d Addr: %02x Subaddr: %02x Value: ",
i2ctool->bus, i2ctool->addr, regaddr);
if (i2ctool->width == 8)
{
i2ctool_printf(i2ctool, "%02x\n", result);
}
else
{
i2ctool_printf(i2ctool, "%04x\n", result);
}
}
else
{
i2ctool_printf(i2ctool, g_i2cxfrerror, argv[0], -ret);
break;
}
/* Auto-increment the address if so configured */
if (i2ctool->autoincr)
{
regaddr++;
}
}
(void)close(fd);
return ret;
}
