mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-24 17:36:14 +02:00
a95f9f92e2
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@13619 3c298f89-4303-0410-b956-a3cf2f4a3e73
63 lines
1.7 KiB
Diff
Executable File
63 lines
1.7 KiB
Diff
Executable File
From ff2e0f074f61fded30a44e13b849fe9010ab4148 Mon Sep 17 00:00:00 2001
|
|
From: Andy Green <andy@openmoko.com>
|
|
Date: Fri, 25 Jul 2008 23:06:16 +0100
|
|
Subject: [PATCH] introduce-panic-blink-led-not-using-userspace-omfg.patch
|
|
|
|
A panic is silent on GTA02, it would be good if we got a little hint
|
|
if we are crashing (eg, in suspend / resume) from a panic instead of
|
|
a deadlock, etc. On a normal PC i8042 blinks the keyboard lights if
|
|
we panic, this patch causes AUX to flash at 5Hz in event of a panic.
|
|
|
|
Tested by giving kernel fake root= that didn't exist.
|
|
|
|
Signed-off-by: Andy Green <andy@openmoko.com>
|
|
---
|
|
arch/arm/mach-s3c2440/mach-gta02.c | 24 ++++++++++++++++++++++++
|
|
1 files changed, 24 insertions(+), 0 deletions(-)
|
|
|
|
diff --git a/arch/arm/mach-s3c2440/mach-gta02.c b/arch/arm/mach-s3c2440/mach-gta02.c
|
|
index fd746fd..c32bb2a 100644
|
|
--- a/arch/arm/mach-s3c2440/mach-gta02.c
|
|
+++ b/arch/arm/mach-s3c2440/mach-gta02.c
|
|
@@ -328,6 +328,27 @@ FIQ_HANDLER_ENTRY(256, 512)
|
|
FIQ_HANDLER_END()
|
|
|
|
|
|
+/*
|
|
+ * this gets called every 1ms when we paniced.
|
|
+ */
|
|
+
|
|
+static long gta02_panic_blink(long count)
|
|
+{
|
|
+ long delay = 0;
|
|
+ static long last_blink;
|
|
+ static char led;
|
|
+
|
|
+ if (count - last_blink < 100) /* 200ms period, fast blink */
|
|
+ return 0;
|
|
+
|
|
+ led ^= 1;
|
|
+ s3c2410_gpio_cfgpin(GTA02_GPIO_AUX_LED, S3C2410_GPIO_OUTPUT);
|
|
+ neo1973_gpb_setpin(GTA02_GPIO_AUX_LED, led);
|
|
+
|
|
+ last_blink = count;
|
|
+ return delay;
|
|
+}
|
|
+
|
|
|
|
/**
|
|
* returns PCB revision information in b9,b8 and b2,b1,b0
|
|
@@ -1476,6 +1497,9 @@ static void __init gta02_machine_init(void)
|
|
{
|
|
int rc;
|
|
|
|
+ /* set the panic callback to make AUX blink fast */
|
|
+ panic_blink = gta02_panic_blink;
|
|
+
|
|
switch (system_rev) {
|
|
case GTA02v6_SYSTEM_REV:
|
|
/* we need push-pull interrupt from motion sensors */
|
|
--
|
|
1.5.6.3
|
|
|