diff options
| author | Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> | 2013-11-09 14:24:08 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2013-11-11 09:05:35 +0100 |
| commit | fcc25285a2b98afd4e6c2324093b4f52f59a26d3 (patch) | |
| tree | 7d105d64d89ce08fd51c7f17ce39ae6794d242ad /drivers/gpio | |
| parent | ed4348e8b249b56c493519aefeb72c3a8e92737e (diff) | |
| download | barebox-fcc25285a2b98afd4e6c2324093b4f52f59a26d3.tar.gz barebox-fcc25285a2b98afd4e6c2324093b4f52f59a26d3.tar.xz | |
gpiolib: make gpiolib command more verbose
This adds some more printf information to gpiolib command, like the
gpiochip handling a specific gpio. Also, current direction and value
of the gpio are printed, if the gpiochip provides the corresponding
callbacks.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpiolib.c | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index ca6e8adab4..b7db596519 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -228,16 +228,34 @@ 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]; + int val = -1, dir = -1; if (!gi->chip) continue; - printf("gpio %*d: %*s %s\n", 4, - i, 9, gi->requested ? "true" : "false", + /* print chip information and header on first gpio */ + if (gi->chip->base == i) { + printf("\ngpios %u-%u, chip %s:\n", + gi->chip->base, + gi->chip->base + gi->chip->ngpio - 1, + gi->chip->dev->name); + printf("%*cdir val requested label\n", 13, ' '); + } + + if (gi->chip->ops->get_direction) + dir = gi->chip->ops->get_direction(gi->chip, + i - gi->chip->base); + if (gi->chip->ops->get) + val = gi->chip->ops->get(gi->chip, + i - gi->chip->base); + + printf(" gpio %*d: %*s %*s %*s %s\n", 4, i, + 3, (dir < 0) ? "unk" : ((dir == GPIO_DIR_IN) ? "in" : "out"), + 3, (val < 0) ? "unk" : ((val == 0) ? "lo" : "hi"), + 9, gi->requested ? "true" : "false", gi->label ? gi->label : ""); } |