*
* (c) Copyright 2000 Red Hat Software
* (c) Copyright 2000 Helge Deller <hdeller@redhat.com>
- * (c) Copyright 2001-2005 Helge Deller <deller@gmx.de>
+ * (c) Copyright 2001-2009 Helge Deller <deller@gmx.de>
* (c) Copyright 2001 Randolph Chung <tausq@debian.org>
*
* This program is free software; you can redistribute it and/or modify
* David Pye <dmp@davidmpye.dyndns.org>
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/stddef.h> /* for offsetof() */
#include <linux/init.h>
#include <linux/types.h>
#include <linux/ioport.h>
#include <linux/utsname.h>
+#include <linux/capability.h>
#include <linux/delay.h>
#include <linux/netdevice.h>
#include <linux/inetdevice.h>
static struct workqueue_struct *led_wq;
-static void led_work_func(void *);
-static DECLARE_WORK(led_task, led_work_func, NULL);
+static void led_work_func(struct work_struct *);
+static DECLARE_DELAYED_WORK(led_task, led_work_func);
#if 0
#define DPRINTK(x) printk x
/* Create the work queue and queue the LED task */
led_wq = create_singlethread_workqueue("led_wq");
- queue_work(led_wq, &led_task);
+ queue_delayed_work(led_wq, &led_task, 0);
return 0;
}
cur = lbuf;
- /* skip initial spaces */
- while (*cur && isspace(*cur))
- {
- cur++;
- }
-
switch ((long)data)
{
case LED_NOLCD:
proc_pdc_root = proc_mkdir("pdc", 0);
if (!proc_pdc_root) return -1;
- proc_pdc_root->owner = THIS_MODULE;
ent = create_proc_entry("led", S_IFREG|S_IRUGO|S_IWUSR, proc_pdc_root);
if (!ent) return -1;
- ent->nlink = 1;
ent->data = (void *)LED_NOLCD; /* LED */
ent->read_proc = led_proc_read;
ent->write_proc = led_proc_write;
- ent->owner = THIS_MODULE;
if (led_type == LED_HASLCD)
{
ent = create_proc_entry("lcd", S_IFREG|S_IRUGO|S_IWUSR, proc_pdc_root);
if (!ent) return -1;
- ent->nlink = 1;
ent->data = (void *)LED_HASLCD; /* LCD */
ent->read_proc = led_proc_read;
ent->write_proc = led_proc_write;
- ent->owner = THIS_MODULE;
}
return 0;
* for reading should be OK */
read_lock(&dev_base_lock);
rcu_read_lock();
- for (dev = dev_base; dev; dev = dev->next) {
- struct net_device_stats *stats;
+ for_each_netdev(&init_net, dev) {
+ const struct net_device_stats *stats;
struct in_device *in_dev = __in_dev_get_rcu(dev);
if (!in_dev || !in_dev->ifa_list)
continue;
- if (LOOPBACK(in_dev->ifa_list->ifa_local))
- continue;
- if (!dev->get_stats)
+ if (ipv4_is_loopback(in_dev->ifa_list->ifa_local))
continue;
- stats = dev->get_stats(dev);
+ stats = dev_get_stats(dev);
rx_total += stats->rx_packets;
tx_total += stats->tx_packets;
}
static __inline__ int led_get_diskio_activity(void)
{
static unsigned long last_pgpgin, last_pgpgout;
- struct page_state pgstat;
+ unsigned long events[NR_VM_EVENT_ITEMS];
int changed;
- get_full_page_state(&pgstat); /* get no of sectors in & out */
+ all_vm_events(events);
/* Just use a very simple calculation here. Do not care about overflow,
since we only want to know if there was activity or not. */
- changed = (pgstat.pgpgin != last_pgpgin) || (pgstat.pgpgout != last_pgpgout);
- last_pgpgin = pgstat.pgpgin;
- last_pgpgout = pgstat.pgpgout;
+ changed = (events[PGPGIN] != last_pgpgin) ||
+ (events[PGPGOUT] != last_pgpgout);
+ last_pgpgin = events[PGPGIN];
+ last_pgpgout = events[PGPGOUT];
return (changed ? LED_DISK_IO : 0);
}
#define LED_UPDATE_INTERVAL (1 + (HZ*19/1000))
-static void led_work_func (void *unused)
+static void led_work_func (struct work_struct *unused)
{
static unsigned long last_jiffies;
static unsigned long count_HZ; /* counter in range 0..HZ */
if (likely(led_lanrxtx)) currentleds |= led_get_net_activity();
if (likely(led_diskio)) currentleds |= led_get_diskio_activity();
- /* blink all LEDs twice a second if we got an Oops (HPMC) */
- if (unlikely(oops_in_progress))
- currentleds = (count_HZ<=(HZ/2)) ? 0 : 0xff;
+ /* blink LEDs if we got an Oops (HPMC) */
+ if (unlikely(oops_in_progress)) {
+ if (boot_cpu_data.cpu_type >= pcxl2) {
+ /* newer machines don't have loadavg. LEDs, so we
+ * let all LEDs blink twice per second instead */
+ currentleds = (count_HZ <= (HZ/2)) ? 0 : 0xff;
+ } else {
+ /* old machines: blink loadavg. LEDs twice per second */
+ if (count_HZ <= (HZ/2))
+ currentleds &= ~(LED4|LED5|LED6|LED7);
+ else
+ currentleds |= (LED4|LED5|LED6|LED7);
+ }
+ }
if (currentleds != lastleds)
{
static struct notifier_block led_notifier = {
.notifier_call = led_halt,
};
+static int notifier_disabled = 0;
static int led_halt(struct notifier_block *nb, unsigned long event, void *buf)
{
char *txt;
-
+
+ if (notifier_disabled)
+ return NOTIFY_OK;
+
+ notifier_disabled = 1;
switch (event) {
case SYS_RESTART: txt = "SYSTEM RESTART";
break;
/* Cancel the work item and delete the queue */
if (led_wq) {
- cancel_rearming_delayed_workqueue(led_wq, &led_task);
+ cancel_delayed_work_sync(&led_task);
destroy_workqueue(led_wq);
led_wq = NULL;
}
if (led_func_ptr)
led_func_ptr(0xff); /* turn all LEDs ON */
- unregister_reboot_notifier(&led_notifier);
return NOTIFY_OK;
}
default:
printk(KERN_ERR "%s: Wrong LCD/LED model %d !\n",
- __FUNCTION__, lcd_info.model);
+ __func__, lcd_info.model);
return 1;
}
/* Ensure the work is queued */
if (led_wq) {
- queue_work(led_wq, &led_task);
+ queue_delayed_work(led_wq, &led_task, 0);
}
return 0;
** avoid a race condition while writing the CMD/DATA register pair.
**
*/
-int lcd_print( char *str )
+int lcd_print( const char *str )
{
int i;
/* temporarily disable the led work task */
if (led_wq)
- cancel_rearming_delayed_workqueue(led_wq, &led_task);
+ cancel_delayed_work_sync(&led_task);
/* copy display string to buffer for procfs */
strlcpy(lcd_text, str, sizeof(lcd_text));
/* re-queue the work */
if (led_wq) {
- queue_work(led_wq, &led_task);
+ queue_delayed_work(led_wq, &led_task, 0);
}
return lcd_info.lcd_width;
int ret;
snprintf(lcd_text_default, sizeof(lcd_text_default),
- "Linux %s", system_utsname.release);
+ "Linux %s", init_utsname()->release);
/* Work around the buggy PDC of KittyHawk-machines */
switch (CPU_HVERSION) {
return 1;
}
+static void __exit led_exit(void)
+{
+ unregister_reboot_notifier(&led_notifier);
+ return;
+}
+
#ifdef CONFIG_PROC_FS
module_init(led_create_procfs)
#endif