From 9146d13821a20c49703e1f8f7e4a4f028678883d Mon Sep 17 00:00:00 2001
From: Mike Frysinger <vapier@gentoo.org>
Date: Tue, 10 May 2011 07:01:21 +0000
Subject: [PATCH] post: add gpio hotkey support
Now that we have the generic GPIO layer, we can easily provide a common
implementation for the post_hotkeys_pressed() function based on it.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
---
post/post.c | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/post/post.c b/post/post.c
index 1b7f2aa075..ecea1e13a2 100644
--- a/post/post.c
+++ b/post/post.c
@@ -26,6 +26,10 @@
#include <watchdog.h>
#include <post.h>
+#ifdef CONFIG_SYS_POST_HOTKEYS_GPIO
+#include <asm/gpio.h>
+#endif
+
#ifdef CONFIG_LOGBUFFER
#include <logbuff.h>
#endif
@@ -68,6 +72,23 @@ int post_init_f (void)
*/
int __post_hotkeys_pressed(void)
{
+#ifdef CONFIG_SYS_POST_HOTKEYS_GPIO
+ int ret;
+ unsigned gpio = CONFIG_SYS_POST_HOTKEYS_GPIO;
+
+ ret = gpio_request(gpio, "hotkeys");
+ if (ret) {
+ printf("POST: gpio hotkey request failed\n");
+ return 0;
+ }
+
+ gpio_direction_input(gpio);
+ ret = gpio_get_value(gpio);
+ gpio_free(gpio);
+
+ return ret;
+#endif
+
return 0; /* No hotkeys supported */
}
int post_hotkeys_pressed(void)
--
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