static void print_gpio_info(int gpio)
{
int changed, v, flags;
if (!gpio_is_implemented(gpio))
return; /* Skip unsupported signals */
v = gpio_get_level(gpio);
#ifdef CONFIG_CMD_GPIO_EXTENDED
flags = gpio_get_flags(gpio);
#else
flags = 0;
#endif
changed = last_val_changed(gpio, v);
ccprintf(" %d%c %s%s%s%s%s%s%s%s%s%s\n", v, (changed ? '*' : ' '),
(flags & GPIO_INPUT ? "I " : ""),
(flags & GPIO_OUTPUT ? "O " : ""),
(flags & GPIO_LOW ? "L " : ""),
(flags & GPIO_HIGH ? "H " : ""),
(flags & GPIO_ANALOG ? "A " : ""),
(flags & GPIO_OPEN_DRAIN ? "ODR " : ""),
(flags & GPIO_PULL_UP ? "PU " : ""),
(flags & GPIO_PULL_DOWN ? "PD " : ""),
(flags & GPIO_ALTERNATE ? "ALT " : ""),
gpio_get_name(gpio));
/* Flush console to avoid truncating output */
cflush();
}
static int command_gpio_get(int argc, char **argv)
{
int changed, v, i;
/* If a signal is specified, print only that one */
if (argc == 2) {
i = find_signal_by_name(argv[1]);
if (i == GPIO_COUNT)
return EC_ERROR_PARAM1;
v = gpio_get_level(i);
changed = last_val_changed(i, v);
ccprintf(" %d%c %s\n", v, (changed ? '*' : ' '),
gpio_get_name(i));
return EC_SUCCESS;
}
/* Otherwise print them all */
for (i = 0; i < GPIO_COUNT; i++) {
if (!gpio_is_implemented(i))
continue; /* Skip unsupported signals */
v = gpio_get_level(i);
changed = last_val_changed(i, v);
ccprintf(" %d%c %s\n", v, (changed ? '*' : ' '),
gpio_get_name(i));
/* Flush console to avoid truncating output */
cflush();
}
return EC_SUCCESS;
}
/**
* Find a GPIO signal by name.
*
* @param name Signal name to find
*
* @return the signal index, or GPIO_COUNT if no match.
*/
static enum gpio_signal find_signal_by_name(const char *name)
{
int i;
if (!name || !*name)
return GPIO_COUNT;
for (i = 0; i < GPIO_COUNT; i++)
if (gpio_is_implemented(i) &&
!strcasecmp(name, gpio_get_name(i)))
return i;
return GPIO_COUNT;
}
static enum ec_error_list set(const char *name, int value)
{
enum gpio_signal signal = find_signal_by_name(name);
if (signal == GPIO_COUNT)
return EC_ERROR_INVAL;
if (!gpio_is_implemented(signal))
return EC_ERROR_INVAL;
if (!(gpio_get_default_flags(signal) & GPIO_OUTPUT))
return EC_ERROR_INVAL;
gpio_set_level(signal, value);
return EC_SUCCESS;
}
static int command_gpio_get(int argc, char **argv)
{
int i;
/* If a signal is specified, print only that one */
if (argc == 2) {
i = find_signal_by_name(argv[1]);
if (i == GPIO_COUNT)
return EC_ERROR_PARAM1;
print_gpio_info(i);
return EC_SUCCESS;
}
/* Otherwise print them all */
for (i = 0; i < GPIO_COUNT; i++) {
if (!gpio_is_implemented(i))
continue; /* Skip unsupported signals */
print_gpio_info(i);
}
return EC_SUCCESS;
}
