dump the gpio informations
Now we dump the output to the stdout.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
diff --git a/gpio.c b/gpio.c
index 8e7499d..562a11d 100644
--- a/gpio.c
+++ b/gpio.c
@@ -39,6 +39,7 @@
int value;
int direction;
int edge;
+ char *prefix;
} *gpios_info;
static struct tree *gpio_tree = NULL;
@@ -48,8 +49,10 @@
struct gpio_info *gi;
gi = malloc(sizeof(*gi));
- if (gi)
- memset(gi, 0, sizeof(*gi));
+ if (gi) {
+ memset(gi, -1, sizeof(*gi));
+ gi->prefix = NULL;
+ }
return gi;
}
@@ -148,9 +151,45 @@
return tree_for_each(gpio_tree, fill_gpio_cb, NULL);
}
+static int dump_gpio_cb(struct tree *t, void *data)
+{
+ struct gpio_info *gpio = t->private;
+ struct gpio_info *pgpio;
+
+ if (!t->parent) {
+ printf("/\n");
+ gpio->prefix = "";
+ return 0;
+ }
+
+ pgpio = t->parent->private;
+
+ if (!gpio->prefix)
+ if (asprintf(&gpio->prefix, "%s%s%s", pgpio->prefix,
+ t->depth > 1 ? " ": "", t->next ? "|" : " ") < 0)
+ return -1;
+
+ printf("%s%s-- %s (active_low:%d)\n",
+ gpio->prefix, !t->next ? "`" : "", t->name, gpio->active_low);
+
+ return 0;
+}
+
+int dump_gpio_info(void)
+{
+ return tree_for_each(gpio_tree, dump_gpio_cb, NULL);
+}
+
int gpio_dump(void)
{
- return 0;
+ int ret;
+
+ printf("\nGpio Tree :\n");
+ printf("***********\n");
+ ret = dump_gpio_info();
+ printf("\n\n");
+
+ return ret;
}
/*