add proper uci/hotplug based button handling on atheros and work around boards, where...
authorJohn Crispin <john@openwrt.org>
Tue, 5 Aug 2008 22:17:16 +0000 (22:17 +0000)
committerJohn Crispin <john@openwrt.org>
Tue, 5 Aug 2008 22:17:16 +0000 (22:17 +0000)
SVN-Revision: 12179

target/linux/atheros/base-files/etc/config/system [new file with mode: 0644]
target/linux/atheros/base-files/etc/hotplug.d/button/00-button [new file with mode: 0644]
target/linux/atheros/files/arch/mips/atheros/reset.c

diff --git a/target/linux/atheros/base-files/etc/config/system b/target/linux/atheros/base-files/etc/config/system
new file mode 100644 (file)
index 0000000..47faa3c
--- /dev/null
@@ -0,0 +1,17 @@
+config system
+       option hostname OpenWrt
+       option timezone UTC
+
+config button
+       option button   reset
+       option action   released
+       option handler  "logger reboot"
+       option min              0
+       option max              4
+
+config button
+       option button   reset
+       option action   released
+       option handler  "logger factory default"
+       option min              5
+       option max              30
diff --git a/target/linux/atheros/base-files/etc/hotplug.d/button/00-button b/target/linux/atheros/base-files/etc/hotplug.d/button/00-button
new file mode 100644 (file)
index 0000000..857a59b
--- /dev/null
@@ -0,0 +1,24 @@
+. /etc/functions.sh
+do_button () {
+       local button
+       local action
+       local handler
+       local min
+       local max
+
+       config_get button $1 button
+       config_get action $1 action
+       config_get handler $1 handler
+       config_get min $1 min
+       config_get max $1 max
+       
+       [ "$ACTION" = "$action" -a "$BUTTON" = "$button" -a -n "$handler" ] && {
+               [ -z "$min" -o -z "$max" ] && eval $handler 
+               [ -n "$min" -a -n "$max" ] && {
+                       [ $min -le $SEEN -a $max -ge $SEEN ] && eval $handler 
+               }
+       }
+}
+
+config_load system
+config_foreach do_button button
index 876fa29..a94954d 100644 (file)
@@ -18,6 +18,7 @@ struct event_t {
 };
 
 static struct ar531x_boarddata *bcfg;
+static struct timer_list rst_button_timer;
 
 extern struct sock *uevent_sock;
 extern u64 uevent_next_seqnum(void);
@@ -71,6 +72,37 @@ done:
        kfree(event);
 }
 
+static int no_release_workaround = 1;
+
+static void
+reset_button_poll(unsigned long unused)
+{
+       struct event_t *event;
+       int gpio = ~0;
+
+       if(!no_release_workaround)
+               return;
+
+       DO_AR5315(gpio = sysRegRead(AR5315_GPIO_DI);)
+    gpio &= 1 << (AR531X_RESET_GPIO_IRQ - AR531X_GPIO_IRQ_BASE);
+       if(gpio)
+       {
+               rst_button_timer.expires = jiffies + (HZ / 4);
+               add_timer(&rst_button_timer);
+       } else {
+               event = (struct event_t *) kzalloc(sizeof(struct event_t), GFP_ATOMIC);
+               if (!event)
+               {
+                       printk("Could not alloc hotplug event\n");
+                       return;
+               }
+               event->set = 0;
+               event->jiffies = jiffies;
+               INIT_WORK(&event->wq, (void *)(void *)hotplug_button);
+               schedule_work(&event->wq);
+       }
+}
+
 static irqreturn_t button_handler(int irq, void *dev_id)
 {
        static int pressed = 0;
@@ -87,13 +119,20 @@ static irqreturn_t button_handler(int irq, void *dev_id)
        gpio &= 1 << (irq - AR531X_GPIO_IRQ_BASE);
 
        event->set = gpio;
+       if(!event->set)
+               no_release_workaround = 0;
+
        event->jiffies = jiffies;
 
        INIT_WORK(&event->wq, (void *)(void *)hotplug_button);
        schedule_work(&event->wq);
 
        seen = jiffies;
-
+       if(event->set && no_release_workaround)
+       {
+               rst_button_timer.expires = jiffies + (HZ / 4);
+               add_timer(&rst_button_timer);
+       }
        return IRQ_HANDLED;
 }
 
@@ -110,6 +149,11 @@ int __init ar531x_init_reset(void)
 
        seen = jiffies;
 
+       init_timer(&rst_button_timer);
+       rst_button_timer.function = reset_button_poll;
+       rst_button_timer.expires = jiffies + HZ / 50;
+       add_timer(&rst_button_timer);
+
        request_irq(AR531X_RESET_GPIO_IRQ, &button_handler, IRQF_SAMPLE_RANDOM, "ar531x_reset", NULL);
 
        return 0;