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gpiolib: add command to dump the current gpio status 

This will allow to known which gpio is requested by what

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Jean-Christophe PLAGNIOL-VILLARD 2012-12-21 14:26:09 +01:00 committed by Sascha Hauer
parent 8429aed80e
commit a2bf8f66ba
1 changed files with 37 additions and 0 deletions
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37
drivers/gpio/gpio.c
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@ -1,4 +1,6 @@
#include <common.h>
#include <command.h>
#include <complete.h>
#include <gpio.h>
#include <errno.h>
#include <malloc.h>
@ -198,3 +200,38 @@ int gpio_get_num(struct device_d *dev, int gpio)
return -ENODEV;
}
#ifdef CONFIG_CMD_GPIO
static int do_gpiolib(int argc, char *argv[])
{
int i;
printf("gpiolib: gpio lists\n");
printf("%*crequested label\n", 11, ' ');
for (i = 0; i < ARCH_NR_GPIOS; i++) {
struct gpio_info *gi = &gpio_desc[i];
if (!gi->chip)
continue;
printf("gpio %*d: %*s %s\n", 4,
i, 9, gi->requested ? "true" : "false",
gi->label ? gi->label : "");
}
return 0;
}
BAREBOX_CMD_HELP_START(gpiolib)
BAREBOX_CMD_HELP_USAGE("gpiolib\n")
BAREBOX_CMD_HELP_SHORT("dump current registered gpio\n");
BAREBOX_CMD_HELP_END
BAREBOX_CMD_START(gpiolib)
.cmd = do_gpiolib,
.usage = "dump current registered gpio",
BAREBOX_CMD_HELP(cmd_gpiolib_help)
BAREBOX_CMD_COMPLETE(empty_complete)
BAREBOX_CMD_END
#endif