gpio: show gpio direction and egde in string.

In gpio sysfs, direction and egde is shown in string.
dierction value is "in" or "out".
And egde value is "none", "falling", "rising" or "both".
So string must be shown also in powerdebug tool.

Signed-off-by: Shaojie Sun <shaojie.sun@linaro.com>

1 files changed, 13 insertions, 9 deletions

diff --git a/gpio.c b/gpio.c
index f7d2a10..3ecc393 100644
--- a/gpio.c
+++ b/gpio.c
@@ -33,12 +33,14 @@
 
 #define SYSFS_GPIO "/sys/class/gpio"
 
+#define MAX_VALUE_BYTE	10
+
 struct gpio_info {
 	bool expanded;
 	int active_low;
 	int value;
-	int direction;
-	int edge;
+	char direction[MAX_VALUE_BYTE];
+	char edge[MAX_VALUE_BYTE];
 	char *prefix;
 } *gpios_info;
 
@@ -51,6 +53,8 @@ static struct gpio_info *gpio_alloc(void)
 	gi = malloc(sizeof(*gi));
 	if (gi) {
 		memset(gi, -1, sizeof(*gi));
+		memset(gi->direction, 0, MAX_VALUE_BYTE);
+		memset(gi->edge, 0, MAX_VALUE_BYTE);
 		gi->prefix = NULL;
 	}
 
@@ -89,8 +93,8 @@ static inline int read_gpio_cb(struct tree *t, void *data)
 
 	file_read_value(t->path, "active_low", "%d", &gpio->active_low);
 	file_read_value(t->path, "value", "%d", &gpio->value);
-	file_read_value(t->path, "edge", "%d", &gpio->edge);
-	file_read_value(t->path, "direction", "%d", &gpio->direction);
+	file_read_value(t->path, "edge", "%8s", &gpio->edge);
+	file_read_value(t->path, "direction", "%4s", &gpio->direction);
 
 	return 0;
 }
@@ -150,11 +154,11 @@ static int dump_gpio_cb(struct tree *t, void *data)
 	if (gpio->value != -1)
 		printf(", value:%d", gpio->value);
 
-	if (gpio->edge != -1)
-		printf(", edge:%d", gpio->edge);
+	if (gpio->edge[0] != 0)
+		printf(", edge:%s", gpio->edge);
 
-	if (gpio->direction != -1)
-		printf(", direction:%d", gpio->direction);
+	if (gpio->direction[0] != 0)
+		printf(", direction:%s", gpio->direction);
 
 	printf(" )\n");
 
@@ -183,7 +187,7 @@ static char *gpio_line(struct tree *t)
 	struct gpio_info *gpio = t->private;
 	char *gpioline;
 
-	if (asprintf(&gpioline, "%-20s %-10d %-10d %-10d %-10d", t-> name,
+	if (asprintf(&gpioline, "%-20s %-10d %-10d %-10s %-10s", t->name,
 		     gpio->value, gpio->active_low, gpio->edge, gpio->direction) < 0)
 		return NULL;