[APM] SH: Convert to use shared APM emulation.
authorPaul Mundt <lethal@linux-sh.org>
Wed, 24 Jan 2007 12:56:20 +0000 (21:56 +0900)
committerRalf Baechle <ralf@linux-mips.org>
Fri, 9 Feb 2007 17:08:58 +0000 (17:08 +0000)
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
arch/sh/Kconfig
arch/sh/boards/hp6xx/hp6xx_apm.c
arch/sh/kernel/Makefile
arch/sh/kernel/apm.c [deleted file]
include/asm-sh/apm.h [deleted file]

index 3aa3b885ab36ae4fd9575d44e8a7691c5ad03e3e..4f3891215b87c83f3ff03252558e78b74b981bbd 100644 (file)
@@ -48,6 +48,9 @@ config GENERIC_IOMAP
 config GENERIC_TIME
        def_bool n
 
+config SYS_SUPPORTS_APM_EMULATION
+       bool
+
 config ARCH_MAY_HAVE_PC_FDC
        bool
 
@@ -126,6 +129,7 @@ config SH_7751_SYSTEMH
 
 config SH_HP6XX
        bool "HP6XX"
+       select SYS_SUPPORTS_APM_EMULATION
        help
          Select HP6XX if configuring for a HP jornada HP6xx.
          More information (hardware only) at
@@ -694,9 +698,6 @@ depends on EXPERIMENTAL
 
 source kernel/power/Kconfig
 
-config APM
-       bool "Advanced Power Management Emulation"
-       depends on PM
 endmenu
 
 source "net/Kconfig"
index d146cdaa0b8b03897b5f09e68aec42f2acd4abd4..d1c1460c8a06ecf7905fe303f62ce9af03eb6f1f 100644 (file)
@@ -7,12 +7,11 @@
  * modify it under the terms of the GNU General Public License.
  */
 #include <linux/module.h>
-#include <linux/apm_bios.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
-#include <asm/io.h>
-#include <asm/apm.h>
+#include <linux/apm-emulation.h>
+#include <linux/io.h>
 #include <asm/adc.h>
 #include <asm/hp6xx.h>
 
 
 #define MODNAME "hp6x0_apm"
 
-static int hp6x0_apm_get_info(char *buf, char **start, off_t fpos, int length)
+static void hp6x0_apm_get_power_status(struct apm_power_info *info)
 {
+       int battery, backup, charging, percentage;
        u8 pgdr;
-       char *p;
-       int battery_status;
-       int battery_flag;
-       int ac_line_status;
-       int time_units = APM_BATTERY_LIFE_UNKNOWN;
 
-       int battery = adc_single(ADC_CHANNEL_BATTERY);
-       int backup = adc_single(ADC_CHANNEL_BACKUP);
-       int charging = adc_single(ADC_CHANNEL_CHARGE);
-       int percentage;
+       battery         = adc_single(ADC_CHANNEL_BATTERY);
+       backup          = adc_single(ADC_CHANNEL_BACKUP);
+       charging        = adc_single(ADC_CHANNEL_CHARGE);
 
        percentage = 100 * (battery - HP680_BATTERY_MIN) /
                           (HP680_BATTERY_MAX - HP680_BATTERY_MIN);
 
-       ac_line_status = (battery > HP680_BATTERY_AC_ON) ?
+       info->ac_line_status = (battery > HP680_BATTERY_AC_ON) ?
                         APM_AC_ONLINE : APM_AC_OFFLINE;
 
-       p = buf;
-
        pgdr = ctrl_inb(SH7709_PGDR);
        if (pgdr & PGDR_MAIN_BATTERY_OUT) {
-               battery_status = APM_BATTERY_STATUS_NOT_PRESENT;
-               battery_flag = 0x80;
-               percentage = -1;
-       } else if (charging < 8 ) {
-               battery_status = APM_BATTERY_STATUS_CHARGING;
-               battery_flag = 0x08;
-               ac_line_status = 0xff;
+               info->battery_status    = APM_BATTERY_STATUS_NOT_PRESENT;
+               info->battery_flag      = 0x80;
+       } else if (charging < 8) {
+               info->battery_status    = APM_BATTERY_STATUS_CHARGING;
+               info->battery_flag      = 0x08;
+               info->ac_line_status = 0xff;
        } else if (percentage <= APM_CRITICAL) {
-               battery_status = APM_BATTERY_STATUS_CRITICAL;
-               battery_flag = 0x04;
+               info->battery_status    = APM_BATTERY_STATUS_CRITICAL;
+               info->battery_flag      = 0x04;
        } else if (percentage <= APM_LOW) {
-               battery_status = APM_BATTERY_STATUS_LOW;
-               battery_flag = 0x02;
+               info->battery_status    = APM_BATTERY_STATUS_LOW;
+               info->battery_flag      = 0x02;
        } else {
-               battery_status = APM_BATTERY_STATUS_HIGH;
-               battery_flag = 0x01;
+               info->battery_status    = APM_BATTERY_STATUS_HIGH;
+               info->battery_flag      = 0x01;
        }
 
-       p += sprintf(p, "1.0 1.2 0x%02x 0x%02x 0x%02x 0x%02x %d%% %d %s\n",
-                    APM_32_BIT_SUPPORT,
-                    ac_line_status,
-                    battery_status,
-                    battery_flag,
-                    percentage,
-                    time_units,
-                    "min");
-       p += sprintf(p, "bat=%d backup=%d charge=%d\n",
-                    battery, backup, charging);
-
-       return p - buf;
+       info->units = 0;
 }
 
 static irqreturn_t hp6x0_apm_interrupt(int irq, void *dev)
@@ -96,14 +76,14 @@ static int __init hp6x0_apm_init(void)
        int ret;
 
        ret = request_irq(HP680_BTN_IRQ, hp6x0_apm_interrupt,
-                         IRQF_DISABLED, MODNAME, 0);
+                         IRQF_DISABLED, MODNAME, NULL);
        if (unlikely(ret < 0)) {
                printk(KERN_ERR MODNAME ": IRQ %d request failed\n",
                       HP680_BTN_IRQ);
                return ret;
        }
 
-       apm_get_info = hp6x0_apm_get_info;
+       apm_get_power_status = hp6x0_apm_get_power_status;
 
        return ret;
 }
@@ -111,7 +91,7 @@ static int __init hp6x0_apm_init(void)
 static void __exit hp6x0_apm_exit(void)
 {
        free_irq(HP680_BTN_IRQ, 0);
-       apm_get_info = 0;
+       apm_get_info = NULL;
 }
 
 module_init(hp6x0_apm_init);
index 99c7e5249f7a6ca16a68911955e90e3abb357855..2f6d2bcb1c93f8fbc26b7daee131b894e02dd9ad 100644 (file)
@@ -19,6 +19,5 @@ obj-$(CONFIG_SH_CPU_FREQ)     += cpufreq.o
 obj-$(CONFIG_MODULES)          += module.o
 obj-$(CONFIG_EARLY_PRINTK)     += early_printk.o
 obj-$(CONFIG_KEXEC)            += machine_kexec.o relocate_kernel.o
-obj-$(CONFIG_APM)              += apm.o
 obj-$(CONFIG_PM)               += pm.o
 obj-$(CONFIG_STACKTRACE)       += stacktrace.o
diff --git a/arch/sh/kernel/apm.c b/arch/sh/kernel/apm.c
deleted file mode 100644 (file)
index 4f66f91..0000000
+++ /dev/null
@@ -1,538 +0,0 @@
-/*
- * bios-less APM driver for hp680
- *
- * Copyright 2005 (c) Andriy Skulysh <askulysh@gmail.com>
- *
- * based on ARM APM driver by
- *  Jamey Hicks <jamey@crl.dec.com>
- *
- * adapted from the APM BIOS driver for Linux by
- *  Stephen Rothwell (sfr@linuxcare.com)
- *
- * APM 1.2 Reference:
- *   Intel Corporation, Microsoft Corporation. Advanced Power Management
- *   (APM) BIOS Interface Specification, Revision 1.2, February 1996.
- *
- * [This document is available from Microsoft at:
- *    http://www.microsoft.com/hwdev/busbios/amp_12.htm]
- */
-#include <linux/module.h>
-#include <linux/poll.h>
-#include <linux/timer.h>
-#include <linux/slab.h>
-#include <linux/proc_fs.h>
-#include <linux/miscdevice.h>
-#include <linux/apm_bios.h>
-#include <linux/pm.h>
-#include <linux/pm_legacy.h>
-#include <asm/apm.h>
-
-#define MODNAME "apm"
-
-/*
- * The apm_bios device is one of the misc char devices.
- * This is its minor number.
- */
-#define APM_MINOR_DEV                  134
-
-/*
- * Maximum number of events stored
- */
-#define APM_MAX_EVENTS                 16
-
-struct apm_queue {
-       unsigned int            event_head;
-       unsigned int            event_tail;
-       apm_event_t             events[APM_MAX_EVENTS];
-};
-
-/*
- * The per-file APM data
- */
-struct apm_user {
-       struct list_head        list;
-
-       unsigned int            suser: 1;
-       unsigned int            writer: 1;
-       unsigned int            reader: 1;
-
-       int                     suspend_result;
-       unsigned int            suspend_state;
-#define SUSPEND_NONE   0               /* no suspend pending */
-#define SUSPEND_PENDING        1               /* suspend pending read */
-#define SUSPEND_READ   2               /* suspend read, pending ack */
-#define SUSPEND_ACKED  3               /* suspend acked */
-#define SUSPEND_DONE   4               /* suspend completed */
-
-       struct apm_queue        queue;
-};
-
-/*
- * Local variables
- */
-static int suspends_pending;
-
-static DECLARE_WAIT_QUEUE_HEAD(apm_waitqueue);
-static DECLARE_WAIT_QUEUE_HEAD(apm_suspend_waitqueue);
-
-/*
- * This is a list of everyone who has opened /dev/apm_bios
- */
-static DECLARE_RWSEM(user_list_lock);
-static LIST_HEAD(apm_user_list);
-
-/*
- * kapmd info.  kapmd provides us a process context to handle
- * "APM" events within - specifically necessary if we're going
- * to be suspending the system.
- */
-static DECLARE_WAIT_QUEUE_HEAD(kapmd_wait);
-static DECLARE_COMPLETION(kapmd_exit);
-static DEFINE_SPINLOCK(kapmd_queue_lock);
-static struct apm_queue kapmd_queue;
-
-int apm_suspended;
-EXPORT_SYMBOL(apm_suspended);
-
-/* Platform-specific apm_read_proc(). */
-int (*apm_get_info)(char *buf, char **start, off_t fpos, int length);
-EXPORT_SYMBOL(apm_get_info);
-
-/*
- * APM event queue management.
- */
-static inline int queue_empty(struct apm_queue *q)
-{
-       return q->event_head == q->event_tail;
-}
-
-static inline apm_event_t queue_get_event(struct apm_queue *q)
-{
-       q->event_tail = (q->event_tail + 1) % APM_MAX_EVENTS;
-       return q->events[q->event_tail];
-}
-
-static void queue_add_event(struct apm_queue *q, apm_event_t event)
-{
-       q->event_head = (q->event_head + 1) % APM_MAX_EVENTS;
-       if (q->event_head == q->event_tail) {
-               static int notified;
-
-               if (notified++ == 0)
-                       printk(KERN_ERR "apm: an event queue overflowed\n");
-
-               q->event_tail = (q->event_tail + 1) % APM_MAX_EVENTS;
-       }
-       q->events[q->event_head] = event;
-}
-
-static void queue_event_one_user(struct apm_user *as, apm_event_t event)
-{
-       if (as->suser && as->writer) {
-               switch (event) {
-               case APM_SYS_SUSPEND:
-               case APM_USER_SUSPEND:
-                       /*
-                        * If this user already has a suspend pending,
-                        * don't queue another one.
-                        */
-                       if (as->suspend_state != SUSPEND_NONE)
-                               return;
-
-                       as->suspend_state = SUSPEND_PENDING;
-                       suspends_pending++;
-                       break;
-               }
-       }
-       queue_add_event(&as->queue, event);
-}
-
-static void queue_event(apm_event_t event, struct apm_user *sender)
-{
-       struct apm_user *as;
-
-       down_read(&user_list_lock);
-
-       list_for_each_entry(as, &apm_user_list, list)
-               if (as != sender && as->reader)
-                       queue_event_one_user(as, event);
-
-       up_read(&user_list_lock);
-       wake_up_interruptible(&apm_waitqueue);
-}
-
-/**
- * apm_queue_event - queue an APM event for kapmd
- * @event: APM event
- *
- * Queue an APM event for kapmd to process and ultimately take the
- * appropriate action.  Only a subset of events are handled:
- *   %APM_LOW_BATTERY
- *   %APM_POWER_STATUS_CHANGE
- *   %APM_USER_SUSPEND
- *   %APM_SYS_SUSPEND
- *   %APM_CRITICAL_SUSPEND
- */
-void apm_queue_event(apm_event_t event)
-{
-       spin_lock_irq(&kapmd_queue_lock);
-       queue_add_event(&kapmd_queue, event);
-       spin_unlock_irq(&kapmd_queue_lock);
-
-       wake_up_interruptible(&kapmd_wait);
-}
-EXPORT_SYMBOL(apm_queue_event);
-
-static void apm_suspend(void)
-{
-       struct apm_user *as;
-       int err;
-
-       apm_suspended = 1;
-       err = pm_suspend(PM_SUSPEND_MEM);
-
-       /*
-        * Anyone on the APM queues will think we're still suspended.
-        * Send a message so everyone knows we're now awake again.
-        */
-       queue_event(APM_NORMAL_RESUME, NULL);
-
-       /*
-        * Finally, wake up anyone who is sleeping on the suspend.
-        */
-       down_read(&user_list_lock);
-       list_for_each_entry(as, &apm_user_list, list) {
-               as->suspend_result = err;
-               as->suspend_state = SUSPEND_DONE;
-       }
-       up_read(&user_list_lock);
-
-       wake_up(&apm_suspend_waitqueue);
-       apm_suspended = 0;
-}
-
-static ssize_t apm_read(struct file *fp, char __user *buf,
-                       size_t count, loff_t *ppos)
-{
-       struct apm_user *as = fp->private_data;
-       apm_event_t event;
-       int i = count, ret = 0;
-
-       if (count < sizeof(apm_event_t))
-               return -EINVAL;
-
-       if (queue_empty(&as->queue) && fp->f_flags & O_NONBLOCK)
-               return -EAGAIN;
-
-       wait_event_interruptible(apm_waitqueue, !queue_empty(&as->queue));
-
-       while ((i >= sizeof(event)) && !queue_empty(&as->queue)) {
-               event = queue_get_event(&as->queue);
-
-               ret = -EFAULT;
-               if (copy_to_user(buf, &event, sizeof(event)))
-                       break;
-
-               if (event == APM_SYS_SUSPEND || event == APM_USER_SUSPEND)
-                       as->suspend_state = SUSPEND_READ;
-
-               buf += sizeof(event);
-               i -= sizeof(event);
-       }
-
-       if (i < count)
-               ret = count - i;
-
-       return ret;
-}
-
-static unsigned int apm_poll(struct file *fp, poll_table * wait)
-{
-       struct apm_user *as = fp->private_data;
-
-       poll_wait(fp, &apm_waitqueue, wait);
-       return queue_empty(&as->queue) ? 0 : POLLIN | POLLRDNORM;
-}
-
-/*
- * apm_ioctl - handle APM ioctl
- *
- * APM_IOC_SUSPEND
- *   This IOCTL is overloaded, and performs two functions.  It is used to:
- *     - initiate a suspend
- *     - acknowledge a suspend read from /dev/apm_bios.
- *   Only when everyone who has opened /dev/apm_bios with write permission
- *   has acknowledge does the actual suspend happen.
- */
-static int
-apm_ioctl(struct inode * inode, struct file *filp, u_int cmd, u_long arg)
-{
-       struct apm_user *as = filp->private_data;
-       unsigned long flags;
-       int err = -EINVAL;
-
-       if (!as->suser || !as->writer)
-               return -EPERM;
-
-       switch (cmd) {
-       case APM_IOC_SUSPEND:
-               as->suspend_result = -EINTR;
-
-               if (as->suspend_state == SUSPEND_READ) {
-                       /*
-                        * If we read a suspend command from /dev/apm_bios,
-                        * then the corresponding APM_IOC_SUSPEND ioctl is
-                        * interpreted as an acknowledge.
-                        */
-                       as->suspend_state = SUSPEND_ACKED;
-                       suspends_pending--;
-               } else {
-                       /*
-                        * Otherwise it is a request to suspend the system.
-                        * Queue an event for all readers, and expect an
-                        * acknowledge from all writers who haven't already
-                        * acknowledged.
-                        */
-                       queue_event(APM_USER_SUSPEND, as);
-               }
-
-               /*
-                * If there are no further acknowledges required, suspend
-                * the system.
-                */
-               if (suspends_pending == 0)
-                       apm_suspend();
-
-               /*
-                * Wait for the suspend/resume to complete.  If there are
-                * pending acknowledges, we wait here for them.
-                *
-                * Note that we need to ensure that the PM subsystem does
-                * not kick us out of the wait when it suspends the threads.
-                */
-               flags = current->flags;
-               current->flags |= PF_NOFREEZE;
-
-               /*
-                * Note: do not allow a thread which is acking the suspend
-                * to escape until the resume is complete.
-                */
-               if (as->suspend_state == SUSPEND_ACKED)
-                       wait_event(apm_suspend_waitqueue,
-                                        as->suspend_state == SUSPEND_DONE);
-               else
-                       wait_event_interruptible(apm_suspend_waitqueue,
-                                        as->suspend_state == SUSPEND_DONE);
-
-               current->flags = flags;
-               err = as->suspend_result;
-               as->suspend_state = SUSPEND_NONE;
-               break;
-       }
-
-       return err;
-}
-
-static int apm_release(struct inode * inode, struct file * filp)
-{
-       struct apm_user *as = filp->private_data;
-       filp->private_data = NULL;
-
-       down_write(&user_list_lock);
-       list_del(&as->list);
-       up_write(&user_list_lock);
-
-       /*
-        * We are now unhooked from the chain.  As far as new
-        * events are concerned, we no longer exist.  However, we
-        * need to balance suspends_pending, which means the
-        * possibility of sleeping.
-        */
-       if (as->suspend_state != SUSPEND_NONE) {
-               suspends_pending -= 1;
-               if (suspends_pending == 0)
-                       apm_suspend();
-       }
-
-       kfree(as);
-       return 0;
-}
-
-static int apm_open(struct inode * inode, struct file * filp)
-{
-       struct apm_user *as;
-
-       as = kzalloc(sizeof(*as), GFP_KERNEL);
-       if (as) {
-               /*
-                * XXX - this is a tiny bit broken, when we consider BSD
-                * process accounting. If the device is opened by root, we
-                * instantly flag that we used superuser privs. Who knows,
-                * we might close the device immediately without doing a
-                * privileged operation -- cevans
-                */
-               as->suser = capable(CAP_SYS_ADMIN);
-               as->writer = (filp->f_mode & FMODE_WRITE) == FMODE_WRITE;
-               as->reader = (filp->f_mode & FMODE_READ) == FMODE_READ;
-
-               down_write(&user_list_lock);
-               list_add(&as->list, &apm_user_list);
-               up_write(&user_list_lock);
-
-               filp->private_data = as;
-       }
-
-       return as ? 0 : -ENOMEM;
-}
-
-static struct file_operations apm_bios_fops = {
-       .owner          = THIS_MODULE,
-       .read           = apm_read,
-       .poll           = apm_poll,
-       .ioctl          = apm_ioctl,
-       .open           = apm_open,
-       .release        = apm_release,
-};
-
-static struct miscdevice apm_device = {
-       .minor          = APM_MINOR_DEV,
-       .name           = "apm_bios",
-       .fops           = &apm_bios_fops
-};
-
-
-#ifdef CONFIG_PROC_FS
-/*
- * Arguments, with symbols from linux/apm_bios.h.
- *
- *   0) Linux driver version (this will change if format changes)
- *   1) APM BIOS Version.  Usually 1.0, 1.1 or 1.2.
- *   2) APM flags from APM Installation Check (0x00):
- *     bit 0: APM_16_BIT_SUPPORT
- *     bit 1: APM_32_BIT_SUPPORT
- *     bit 2: APM_IDLE_SLOWS_CLOCK
- *     bit 3: APM_BIOS_DISABLED
- *     bit 4: APM_BIOS_DISENGAGED
- *   3) AC line status
- *     0x00: Off-line
- *     0x01: On-line
- *     0x02: On backup power (BIOS >= 1.1 only)
- *     0xff: Unknown
- *   4) Battery status
- *     0x00: High
- *     0x01: Low
- *     0x02: Critical
- *     0x03: Charging
- *     0x04: Selected battery not present (BIOS >= 1.2 only)
- *     0xff: Unknown
- *   5) Battery flag
- *     bit 0: High
- *     bit 1: Low
- *     bit 2: Critical
- *     bit 3: Charging
- *     bit 7: No system battery
- *     0xff: Unknown
- *   6) Remaining battery life (percentage of charge):
- *     0-100: valid
- *     -1: Unknown
- *   7) Remaining battery life (time units):
- *     Number of remaining minutes or seconds
- *     -1: Unknown
- *   8) min = minutes; sec = seconds
- */
-static int apm_read_proc(char *buf, char **start, off_t fpos, int length)
-{
-       if (likely(apm_get_info))
-               return apm_get_info(buf, start, fpos, length);
-
-       return -EINVAL;
-}
-#endif
-
-static int kapmd(void *arg)
-{
-       daemonize("kapmd");
-       current->flags |= PF_NOFREEZE;
-
-       do {
-               apm_event_t event;
-
-               wait_event_interruptible(kapmd_wait,
-                               !queue_empty(&kapmd_queue) || !pm_active);
-
-               if (!pm_active)
-                       break;
-
-               spin_lock_irq(&kapmd_queue_lock);
-               event = 0;
-               if (!queue_empty(&kapmd_queue))
-                       event = queue_get_event(&kapmd_queue);
-               spin_unlock_irq(&kapmd_queue_lock);
-
-               switch (event) {
-               case 0:
-                       break;
-
-               case APM_LOW_BATTERY:
-               case APM_POWER_STATUS_CHANGE:
-                       queue_event(event, NULL);
-                       break;
-
-               case APM_USER_SUSPEND:
-               case APM_SYS_SUSPEND:
-                       queue_event(event, NULL);
-                       if (suspends_pending == 0)
-                               apm_suspend();
-                       break;
-
-               case APM_CRITICAL_SUSPEND:
-                       apm_suspend();
-                       break;
-               }
-       } while (1);
-
-       complete_and_exit(&kapmd_exit, 0);
-}
-
-static int __init apm_init(void)
-{
-       int ret;
-
-       pm_active = 1;
-
-       ret = kernel_thread(kapmd, NULL, CLONE_KERNEL);
-       if (unlikely(ret < 0)) {
-               pm_active = 0;
-               return ret;
-       }
-
-       create_proc_info_entry("apm", 0, NULL, apm_read_proc);
-
-       ret = misc_register(&apm_device);
-       if (unlikely(ret != 0)) {
-               remove_proc_entry("apm", NULL);
-
-               pm_active = 0;
-               wake_up(&kapmd_wait);
-               wait_for_completion(&kapmd_exit);
-       }
-
-       return ret;
-}
-
-static void __exit apm_exit(void)
-{
-       misc_deregister(&apm_device);
-       remove_proc_entry("apm", NULL);
-
-       pm_active = 0;
-       wake_up(&kapmd_wait);
-       wait_for_completion(&kapmd_exit);
-}
-
-module_init(apm_init);
-module_exit(apm_exit);
-
-MODULE_AUTHOR("Stephen Rothwell, Andriy Skulysh");
-MODULE_DESCRIPTION("Advanced Power Management");
-MODULE_LICENSE("GPL");
diff --git a/include/asm-sh/apm.h b/include/asm-sh/apm.h
deleted file mode 100644 (file)
index 8b091e9..0000000
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * Copyright 2006 (c) Andriy Skulysh <askulysh@gmail.com>
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- */
-
-#ifndef __ASM_SH_APM_H
-#define __ASM_SH_APM_H
-
-#define APM_AC_OFFLINE                 0
-#define APM_AC_ONLINE                  1
-#define APM_AC_BACKUP                  2
-#define APM_AC_UNKNOWN                 0xff
-
-#define APM_BATTERY_STATUS_HIGH                0
-#define APM_BATTERY_STATUS_LOW         1
-#define APM_BATTERY_STATUS_CRITICAL    2
-#define APM_BATTERY_STATUS_CHARGING    3
-#define APM_BATTERY_STATUS_NOT_PRESENT 4
-#define APM_BATTERY_STATUS_UNKNOWN     0xff
-
-#define APM_BATTERY_LIFE_UNKNOWN       0xFFFF
-#define APM_BATTERY_LIFE_MINUTES       0x8000
-#define APM_BATTERY_LIFE_VALUE_MASK    0x7FFF
-
-#define APM_BATTERY_FLAG_HIGH          (1 << 0)
-#define APM_BATTERY_FLAG_LOW           (1 << 1)
-#define APM_BATTERY_FLAG_CRITICAL      (1 << 2)
-#define APM_BATTERY_FLAG_CHARGING      (1 << 3)
-#define APM_BATTERY_FLAG_NOT_PRESENT   (1 << 7)
-#define APM_BATTERY_FLAG_UNKNOWN       0xff
-
-#define APM_UNITS_MINS                 0
-#define APM_UNITS_SECS                 1
-#define APM_UNITS_UNKNOWN              -1
-
-
-extern int (*apm_get_info)(char *buf, char **start, off_t fpos, int length);
-extern int apm_suspended;
-
-void apm_queue_event(apm_event_t event);
-
-#endif