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Diffstat (limited to 'arch/x86/kernel/apm_32.c')
-rw-r--r--arch/x86/kernel/apm_32.c379
1 files changed, 202 insertions, 177 deletions
diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c
index af045ca0f653..d4438ef296d8 100644
--- a/arch/x86/kernel/apm_32.c
+++ b/arch/x86/kernel/apm_32.c
@@ -227,6 +227,7 @@
#include <linux/dmi.h>
#include <linux/suspend.h>
#include <linux/kthread.h>
+#include <linux/jiffies.h>
#include <asm/system.h>
#include <asm/uaccess.h>
@@ -235,8 +236,6 @@
#include <asm/paravirt.h>
#include <asm/reboot.h>
-#include "io_ports.h"
-
#if defined(CONFIG_APM_DISPLAY_BLANK) && defined(CONFIG_VT)
extern int (*console_blank_hook)(int);
#endif
@@ -324,7 +323,7 @@ extern int (*console_blank_hook)(int);
/*
* Ignore suspend events for this amount of time after a resume
*/
-#define DEFAULT_BOUNCE_INTERVAL (3 * HZ)
+#define DEFAULT_BOUNCE_INTERVAL (3 * HZ)
/*
* Maximum number of events stored
@@ -336,7 +335,7 @@ extern int (*console_blank_hook)(int);
*/
struct apm_user {
int magic;
- struct apm_user * next;
+ struct apm_user *next;
unsigned int suser: 1;
unsigned int writer: 1;
unsigned int reader: 1;
@@ -372,44 +371,44 @@ struct apm_user {
static struct {
unsigned long offset;
unsigned short segment;
-} apm_bios_entry;
-static int clock_slowed;
-static int idle_threshold __read_mostly = DEFAULT_IDLE_THRESHOLD;
-static int idle_period __read_mostly = DEFAULT_IDLE_PERIOD;
-static int set_pm_idle;
-static int suspends_pending;
-static int standbys_pending;
-static int ignore_sys_suspend;
-static int ignore_normal_resume;
-static int bounce_interval __read_mostly = DEFAULT_BOUNCE_INTERVAL;
-
-static int debug __read_mostly;
-static int smp __read_mostly;
-static int apm_disabled = -1;
+} apm_bios_entry;
+static int clock_slowed;
+static int idle_threshold __read_mostly = DEFAULT_IDLE_THRESHOLD;
+static int idle_period __read_mostly = DEFAULT_IDLE_PERIOD;
+static int set_pm_idle;
+static int suspends_pending;
+static int standbys_pending;
+static int ignore_sys_suspend;
+static int ignore_normal_resume;
+static int bounce_interval __read_mostly = DEFAULT_BOUNCE_INTERVAL;
+
+static int debug __read_mostly;
+static int smp __read_mostly;
+static int apm_disabled = -1;
#ifdef CONFIG_SMP
-static int power_off;
+static int power_off;
#else
-static int power_off = 1;
+static int power_off = 1;
#endif
#ifdef CONFIG_APM_REAL_MODE_POWER_OFF
-static int realmode_power_off = 1;
+static int realmode_power_off = 1;
#else
-static int realmode_power_off;
+static int realmode_power_off;
#endif
#ifdef CONFIG_APM_ALLOW_INTS
-static int allow_ints = 1;
+static int allow_ints = 1;
#else
-static int allow_ints;
+static int allow_ints;
#endif
-static int broken_psr;
+static int broken_psr;
static DECLARE_WAIT_QUEUE_HEAD(apm_waitqueue);
static DECLARE_WAIT_QUEUE_HEAD(apm_suspend_waitqueue);
-static struct apm_user * user_list;
+static struct apm_user *user_list;
static DEFINE_SPINLOCK(user_list_lock);
-static const struct desc_struct bad_bios_desc = { 0, 0x00409200 };
+static const struct desc_struct bad_bios_desc = { { { 0, 0x00409200 } } };
-static const char driver_version[] = "1.16ac"; /* no spaces */
+static const char driver_version[] = "1.16ac"; /* no spaces */
static struct task_struct *kapmd_task;
@@ -417,7 +416,7 @@ static struct task_struct *kapmd_task;
* APM event names taken from the APM 1.2 specification. These are
* the message codes that the BIOS uses to tell us about events
*/
-static const char * const apm_event_name[] = {
+static const char * const apm_event_name[] = {
"system standby",
"system suspend",
"normal resume",
@@ -435,14 +434,14 @@ static const char * const apm_event_name[] = {
typedef struct lookup_t {
int key;
- char * msg;
+ char *msg;
} lookup_t;
/*
* The BIOS returns a set of standard error codes in AX when the
* carry flag is set.
*/
-
+
static const lookup_t error_table[] = {
/* N/A { APM_SUCCESS, "Operation succeeded" }, */
{ APM_DISABLED, "Power management disabled" },
@@ -472,24 +471,25 @@ static const lookup_t error_table[] = {
* Write a meaningful log entry to the kernel log in the event of
* an APM error.
*/
-
+
static void apm_error(char *str, int err)
{
- int i;
+ int i;
for (i = 0; i < ERROR_COUNT; i++)
- if (error_table[i].key == err) break;
+ if (error_table[i].key == err)
+ break;
if (i < ERROR_COUNT)
printk(KERN_NOTICE "apm: %s: %s\n", str, error_table[i].msg);
else
printk(KERN_NOTICE "apm: %s: unknown error code %#2.2x\n",
- str, err);
+ str, err);
}
/*
* Lock APM functionality to physical CPU 0
*/
-
+
#ifdef CONFIG_SMP
static cpumask_t apm_save_cpus(void)
@@ -511,7 +511,7 @@ static inline void apm_restore_cpus(cpumask_t mask)
/*
* No CPU lockdown needed on a uniprocessor
*/
-
+
#define apm_save_cpus() (current->cpus_allowed)
#define apm_restore_cpus(x) (void)(x)
@@ -590,7 +590,7 @@ static inline void apm_irq_restore(unsigned long flags)
* code is returned in AH (bits 8-15 of eax) and this function
* returns non-zero.
*/
-
+
static u8 apm_bios_call(u32 func, u32 ebx_in, u32 ecx_in,
u32 *eax, u32 *ebx, u32 *ecx, u32 *edx, u32 *esi)
{
@@ -602,7 +602,7 @@ static u8 apm_bios_call(u32 func, u32 ebx_in, u32 ecx_in,
struct desc_struct *gdt;
cpus = apm_save_cpus();
-
+
cpu = get_cpu();
gdt = get_cpu_gdt_table(cpu);
save_desc_40 = gdt[0x40 / 8];
@@ -616,7 +616,7 @@ static u8 apm_bios_call(u32 func, u32 ebx_in, u32 ecx_in,
gdt[0x40 / 8] = save_desc_40;
put_cpu();
apm_restore_cpus(cpus);
-
+
return *eax & 0xff;
}
@@ -645,7 +645,7 @@ static u8 apm_bios_call_simple(u32 func, u32 ebx_in, u32 ecx_in, u32 *eax)
struct desc_struct *gdt;
cpus = apm_save_cpus();
-
+
cpu = get_cpu();
gdt = get_cpu_gdt_table(cpu);
save_desc_40 = gdt[0x40 / 8];
@@ -680,7 +680,7 @@ static u8 apm_bios_call_simple(u32 func, u32 ebx_in, u32 ecx_in, u32 *eax)
static int apm_driver_version(u_short *val)
{
- u32 eax;
+ u32 eax;
if (apm_bios_call_simple(APM_FUNC_VERSION, 0, *val, &eax))
return (eax >> 8) & 0xff;
@@ -704,16 +704,16 @@ static int apm_driver_version(u_short *val)
* that APM 1.2 is in use. If no messges are pending the value 0x80
* is returned (No power management events pending).
*/
-
+
static int apm_get_event(apm_event_t *event, apm_eventinfo_t *info)
{
- u32 eax;
- u32 ebx;
- u32 ecx;
- u32 dummy;
+ u32 eax;
+ u32 ebx;
+ u32 ecx;
+ u32 dummy;
if (apm_bios_call(APM_FUNC_GET_EVENT, 0, 0, &eax, &ebx, &ecx,
- &dummy, &dummy))
+ &dummy, &dummy))
return (eax >> 8) & 0xff;
*event = ebx;
if (apm_info.connection_version < 0x0102)
@@ -736,10 +736,10 @@ static int apm_get_event(apm_event_t *event, apm_eventinfo_t *info)
* The state holds the state to transition to, which may in fact
* be an acceptance of a BIOS requested state change.
*/
-
+
static int set_power_state(u_short what, u_short state)
{
- u32 eax;
+ u32 eax;
if (apm_bios_call_simple(APM_FUNC_SET_STATE, what, state, &eax))
return (eax >> 8) & 0xff;
@@ -752,7 +752,7 @@ static int set_power_state(u_short what, u_short state)
*
* Transition the entire system into a new APM power state.
*/
-
+
static int set_system_power_state(u_short state)
{
return set_power_state(APM_DEVICE_ALL, state);
@@ -766,13 +766,13 @@ static int set_system_power_state(u_short state)
* to handle the idle request. On a success the function returns 1
* if the BIOS did clock slowing or 0 otherwise.
*/
-
+
static int apm_do_idle(void)
{
- u32 eax;
- u8 ret = 0;
- int idled = 0;
- int polling;
+ u32 eax;
+ u8 ret = 0;
+ int idled = 0;
+ int polling;
polling = !!(current_thread_info()->status & TS_POLLING);
if (polling) {
@@ -799,10 +799,9 @@ static int apm_do_idle(void)
/* This always fails on some SMP boards running UP kernels.
* Only report the failure the first 5 times.
*/
- if (++t < 5)
- {
+ if (++t < 5) {
printk(KERN_DEBUG "apm_do_idle failed (%d)\n",
- (eax >> 8) & 0xff);
+ (eax >> 8) & 0xff);
t = jiffies;
}
return -1;
@@ -814,15 +813,15 @@ static int apm_do_idle(void)
/**
* apm_do_busy - inform the BIOS the CPU is busy
*
- * Request that the BIOS brings the CPU back to full performance.
+ * Request that the BIOS brings the CPU back to full performance.
*/
-
+
static void apm_do_busy(void)
{
- u32 dummy;
+ u32 dummy;
if (clock_slowed || ALWAYS_CALL_BUSY) {
- (void) apm_bios_call_simple(APM_FUNC_BUSY, 0, 0, &dummy);
+ (void)apm_bios_call_simple(APM_FUNC_BUSY, 0, 0, &dummy);
clock_slowed = 0;
}
}
@@ -833,15 +832,15 @@ static void apm_do_busy(void)
* power management - we probably want
* to conserve power.
*/
-#define IDLE_CALC_LIMIT (HZ * 100)
-#define IDLE_LEAKY_MAX 16
+#define IDLE_CALC_LIMIT (HZ * 100)
+#define IDLE_LEAKY_MAX 16
static void (*original_pm_idle)(void) __read_mostly;
/**
* apm_cpu_idle - cpu idling for APM capable Linux
*
- * This is the idling function the kernel executes when APM is available. It
+ * This is the idling function the kernel executes when APM is available. It
* tries to do BIOS powermanagement based on the average system idle time.
* Furthermore it calls the system default idle routine.
*/
@@ -882,7 +881,8 @@ recalc:
t = jiffies;
switch (apm_do_idle()) {
- case 0: apm_idle_done = 1;
+ case 0:
+ apm_idle_done = 1;
if (t != jiffies) {
if (bucket) {
bucket = IDLE_LEAKY_MAX;
@@ -893,7 +893,8 @@ recalc:
continue;
}
break;
- case 1: apm_idle_done = 1;
+ case 1:
+ apm_idle_done = 1;
break;
default: /* BIOS refused */
break;
@@ -921,10 +922,10 @@ recalc:
* the SMP call on CPU0 as some systems will only honour this call
* on their first cpu.
*/
-
+
static void apm_power_off(void)
{
- unsigned char po_bios_call[] = {
+ unsigned char po_bios_call[] = {
0xb8, 0x00, 0x10, /* movw $0x1000,ax */
0x8e, 0xd0, /* movw ax,ss */
0xbc, 0x00, 0xf0, /* movw $0xf000,sp */
@@ -935,13 +936,12 @@ static void apm_power_off(void)
};
/* Some bioses don't like being called from CPU != 0 */
- if (apm_info.realmode_power_off)
- {
+ if (apm_info.realmode_power_off) {
(void)apm_save_cpus();
machine_real_restart(po_bios_call, sizeof(po_bios_call));
+ } else {
+ (void)set_system_power_state(APM_STATE_OFF);
}
- else
- (void) set_system_power_state(APM_STATE_OFF);
}
#ifdef CONFIG_APM_DO_ENABLE
@@ -950,17 +950,17 @@ static void apm_power_off(void)
* apm_enable_power_management - enable BIOS APM power management
* @enable: enable yes/no
*
- * Enable or disable the APM BIOS power services.
+ * Enable or disable the APM BIOS power services.
*/
-
+
static int apm_enable_power_management(int enable)
{
- u32 eax;
+ u32 eax;
if ((enable == 0) && (apm_info.bios.flags & APM_BIOS_DISENGAGED))
return APM_NOT_ENGAGED;
if (apm_bios_call_simple(APM_FUNC_ENABLE_PM, APM_DEVICE_BALL,
- enable, &eax))
+ enable, &eax))
return (eax >> 8) & 0xff;
if (enable)
apm_info.bios.flags &= ~APM_BIOS_DISABLED;
@@ -983,19 +983,19 @@ static int apm_enable_power_management(int enable)
* if reported is a lifetime in secodnds/minutes at current powwer
* consumption.
*/
-
+
static int apm_get_power_status(u_short *status, u_short *bat, u_short *life)
{
- u32 eax;
- u32 ebx;
- u32 ecx;
- u32 edx;
- u32 dummy;
+ u32 eax;
+ u32 ebx;
+ u32 ecx;
+ u32 edx;
+ u32 dummy;
if (apm_info.get_power_status_broken)
return APM_32_UNSUPPORTED;
if (apm_bios_call(APM_FUNC_GET_STATUS, APM_DEVICE_ALL, 0,
- &eax, &ebx, &ecx, &edx, &dummy))
+ &eax, &ebx, &ecx, &edx, &dummy))
return (eax >> 8) & 0xff;
*status = ebx;
*bat = ecx;
@@ -1011,11 +1011,11 @@ static int apm_get_power_status(u_short *status, u_short *bat, u_short *life)
static int apm_get_battery_status(u_short which, u_short *status,
u_short *bat, u_short *life, u_short *nbat)
{
- u32 eax;
- u32 ebx;
- u32 ecx;
- u32 edx;
- u32 esi;
+ u32 eax;
+ u32 ebx;
+ u32 ecx;
+ u32 edx;
+ u32 esi;
if (apm_info.connection_version < 0x0102) {
/* pretend we only have one battery. */
@@ -1026,7 +1026,7 @@ static int apm_get_battery_status(u_short which, u_short *status,
}
if (apm_bios_call(APM_FUNC_GET_STATUS, (0x8000 | (which)), 0, &eax,
- &ebx, &ecx, &edx, &esi))
+ &ebx, &ecx, &edx, &esi))
return (eax >> 8) & 0xff;
*status = ebx;
*bat = ecx;
@@ -1044,10 +1044,10 @@ static int apm_get_battery_status(u_short which, u_short *status,
* Activate or deactive power management on either a specific device
* or the entire system (%APM_DEVICE_ALL).
*/
-
+
static int apm_engage_power_management(u_short device, int enable)
{
- u32 eax;
+ u32 eax;
if ((enable == 0) && (device == APM_DEVICE_ALL)
&& (apm_info.bios.flags & APM_BIOS_DISABLED))
@@ -1074,7 +1074,7 @@ static int apm_engage_power_management(u_short device, int enable)
* all video devices. Typically the BIOS will do laptop backlight and
* monitor powerdown for us.
*/
-
+
static int apm_console_blank(int blank)
{
int error = APM_NOT_ENGAGED; /* silence gcc */
@@ -1126,7 +1126,7 @@ static apm_event_t get_queued_event(struct apm_user *as)
static void queue_event(apm_event_t event, struct apm_user *sender)
{
- struct apm_user * as;
+ struct apm_user *as;
spin_lock(&user_list_lock);
if (user_list == NULL)
@@ -1174,11 +1174,11 @@ static void reinit_timer(void)
spin_lock_irqsave(&i8253_lock, flags);
/* set the clock to HZ */
- outb_p(0x34, PIT_MODE); /* binary, mode 2, LSB/MSB, ch 0 */
+ outb_pit(0x34, PIT_MODE); /* binary, mode 2, LSB/MSB, ch 0 */
udelay(10);
- outb_p(LATCH & 0xff, PIT_CH0); /* LSB */
+ outb_pit(LATCH & 0xff, PIT_CH0); /* LSB */
udelay(10);
- outb(LATCH >> 8, PIT_CH0); /* MSB */
+ outb_pit(LATCH >> 8, PIT_CH0); /* MSB */
udelay(10);
spin_unlock_irqrestore(&i8253_lock, flags);
#endif
@@ -1186,7 +1186,7 @@ static void reinit_timer(void)
static int suspend(int vetoable)
{
- int err;
+ int err;
struct apm_user *as;
if (pm_send_all(PM_SUSPEND, (void *)3)) {
@@ -1239,7 +1239,7 @@ static int suspend(int vetoable)
static void standby(void)
{
- int err;
+ int err;
local_irq_disable();
device_power_down(PMSG_SUSPEND);
@@ -1256,8 +1256,8 @@ static void standby(void)
static apm_event_t get_event(void)
{
- int error;
- apm_event_t event = APM_NO_EVENTS; /* silence gcc */
+ int error;
+ apm_event_t event = APM_NO_EVENTS; /* silence gcc */
apm_eventinfo_t info;
static int notified;
@@ -1275,9 +1275,9 @@ static apm_event_t get_event(void)
static void check_events(void)
{
- apm_event_t event;
- static unsigned long last_resume;
- static int ignore_bounce;
+ apm_event_t event;
+ static unsigned long last_resume;
+ static int ignore_bounce;
while ((event = get_event()) != 0) {
if (debug) {
@@ -1289,7 +1289,7 @@ static void check_events(void)
"event 0x%02x\n", event);
}
if (ignore_bounce
- && ((jiffies - last_resume) > bounce_interval))
+ && (time_after(jiffies, last_resume + bounce_interval)))
ignore_bounce = 0;
switch (event) {
@@ -1357,7 +1357,7 @@ static void check_events(void)
/*
* We are not allowed to reject a critical suspend.
*/
- (void) suspend(0);
+ (void)suspend(0);
break;
}
}
@@ -1365,12 +1365,12 @@ static void check_events(void)
static void apm_event_handler(void)
{
- static int pending_count = 4;
- int err;
+ static int pending_count = 4;
+ int err;
if ((standbys_pending > 0) || (suspends_pending > 0)) {
if ((apm_info.connection_version > 0x100) &&
- (pending_count-- <= 0)) {
+ (pending_count-- <= 0)) {
pending_count = 4;
if (debug)
printk(KERN_DEBUG "apm: setting state busy\n");
@@ -1418,9 +1418,9 @@ static int check_apm_user(struct apm_user *as, const char *func)
static ssize_t do_read(struct file *fp, char __user *buf, size_t count, loff_t *ppos)
{
- struct apm_user * as;
- int i;
- apm_event_t event;
+ struct apm_user *as;
+ int i;
+ apm_event_t event;
as = fp->private_data;
if (check_apm_user(as, "read"))
@@ -1459,9 +1459,9 @@ static ssize_t do_read(struct file *fp, char __user *buf, size_t count, loff_t *
return 0;
}
-static unsigned int do_poll(struct file *fp, poll_table * wait)
+static unsigned int do_poll(struct file *fp, poll_table *wait)
{
- struct apm_user * as;
+ struct apm_user *as;
as = fp->private_data;
if (check_apm_user(as, "poll"))
@@ -1472,10 +1472,10 @@ static unsigned int do_poll(struct file *fp, poll_table * wait)
return 0;
}
-static int do_ioctl(struct inode * inode, struct file *filp,
+static int do_ioctl(struct inode *inode, struct file *filp,
u_int cmd, u_long arg)
{
- struct apm_user * as;
+ struct apm_user *as;
as = filp->private_data;
if (check_apm_user(as, "ioctl"))
@@ -1515,9 +1515,9 @@ static int do_ioctl(struct inode * inode, struct file *filp,
return 0;
}
-static int do_release(struct inode * inode, struct file * filp)
+static int do_release(struct inode *inode, struct file *filp)
{
- struct apm_user * as;
+ struct apm_user *as;
as = filp->private_data;
if (check_apm_user(as, "release"))
@@ -1533,11 +1533,11 @@ static int do_release(struct inode * inode, struct file * filp)
if (suspends_pending <= 0)
(void) suspend(1);
}
- spin_lock(&user_list_lock);
+ spin_lock(&user_list_lock);
if (user_list == as)
user_list = as->next;
else {
- struct apm_user * as1;
+ struct apm_user *as1;
for (as1 = user_list;
(as1 != NULL) && (as1->next != as);
@@ -1553,9 +1553,9 @@ static int do_release(struct inode * inode, struct file * filp)
return 0;
}
-static int do_open(struct inode * inode, struct file * filp)
+static int do_open(struct inode *inode, struct file *filp)
{
- struct apm_user * as;
+ struct apm_user *as;
as = kmalloc(sizeof(*as), GFP_KERNEL);
if (as == NULL) {
@@ -1569,7 +1569,7 @@ static int do_open(struct inode * inode, struct file * filp)
as->suspends_read = as->standbys_read = 0;
/*
* XXX - this is a tiny bit broken, when we consider BSD
- * process accounting. If the device is opened by root, we
+ * 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
@@ -1652,16 +1652,16 @@ static int proc_apm_show(struct seq_file *m, void *v)
8) min = minutes; sec = seconds */
seq_printf(m, "%s %d.%d 0x%02x 0x%02x 0x%02x 0x%02x %d%% %d %s\n",
- driver_version,
- (apm_info.bios.version >> 8) & 0xff,
- apm_info.bios.version & 0xff,
- apm_info.bios.flags,
- ac_line_status,
- battery_status,
- battery_flag,
- percentage,
- time_units,
- units);
+ driver_version,
+ (apm_info.bios.version >> 8) & 0xff,
+ apm_info.bios.version & 0xff,
+ apm_info.bios.flags,
+ ac_line_status,
+ battery_status,
+ battery_flag,
+ percentage,
+ time_units,
+ units);
return 0;
}
@@ -1684,8 +1684,8 @@ static int apm(void *unused)
unsigned short cx;
unsigned short dx;
int error;
- char * power_stat;
- char * bat_stat;
+ char *power_stat;
+ char *bat_stat;
#ifdef CONFIG_SMP
/* 2002/08/01 - WT
@@ -1744,23 +1744,41 @@ static int apm(void *unused)
}
}
- if (debug && (num_online_cpus() == 1 || smp )) {
+ if (debug && (num_online_cpus() == 1 || smp)) {
error = apm_get_power_status(&bx, &cx, &dx);
if (error)
printk(KERN_INFO "apm: power status not available\n");
else {
switch ((bx >> 8) & 0xff) {
- case 0: power_stat = "off line"; break;
- case 1: power_stat = "on line"; break;
- case 2: power_stat = "on backup power"; break;
- default: power_stat = "unknown"; break;
+ case 0:
+ power_stat = "off line";
+ break;
+ case 1:
+ power_stat = "on line";
+ break;
+ case 2:
+ power_stat = "on backup power";
+ break;
+ default:
+ power_stat = "unknown";
+ break;
}
switch (bx & 0xff) {
- case 0: bat_stat = "high"; break;
- case 1: bat_stat = "low"; break;
- case 2: bat_stat = "critical"; break;
- case 3: bat_stat = "charging"; break;
- default: bat_stat = "unknown"; break;
+ case 0:
+ bat_stat = "high";
+ break;
+ case 1:
+ bat_stat = "low";
+ break;
+ case 2:
+ bat_stat = "critical";
+ break;
+ case 3:
+ bat_stat = "charging";
+ break;
+ default:
+ bat_stat = "unknown";
+ break;
}
printk(KERN_INFO
"apm: AC %s, battery status %s, battery life ",
@@ -1777,8 +1795,8 @@ static int apm(void *unused)
printk("unknown\n");
else
printk("%d %s\n", dx & 0x7fff,
- (dx & 0x8000) ?
- "minutes" : "seconds");
+ (dx & 0x8000) ?
+ "minutes" : "seconds");
}
}
}
@@ -1803,7 +1821,7 @@ static int apm(void *unused)
#ifndef MODULE
static int __init apm_setup(char *str)
{
- int invert;
+ int invert;
while ((str != NULL) && (*str != '\0')) {
if (strncmp(str, "off", 3) == 0)
@@ -1828,14 +1846,13 @@ static int __init apm_setup(char *str)
if ((strncmp(str, "power-off", 9) == 0) ||
(strncmp(str, "power_off", 9) == 0))
power_off = !invert;
- if (strncmp(str, "smp", 3) == 0)
- {
+ if (strncmp(str, "smp", 3) == 0) {
smp = !invert;
idle_threshold = 100;
}
if ((strncmp(str, "allow-ints", 10) == 0) ||
(strncmp(str, "allow_ints", 10) == 0))
- apm_info.allow_ints = !invert;
+ apm_info.allow_ints = !invert;
if ((strncmp(str, "broken-psr", 10) == 0) ||
(strncmp(str, "broken_psr", 10) == 0))
apm_info.get_power_status_broken = !invert;
@@ -1881,7 +1898,8 @@ static int __init print_if_true(const struct dmi_system_id *d)
*/
static int __init broken_ps2_resume(const struct dmi_system_id *d)
{
- printk(KERN_INFO "%s machine detected. Mousepad Resume Bug workaround hopefully not needed.\n", d->ident);
+ printk(KERN_INFO "%s machine detected. Mousepad Resume Bug "
+ "workaround hopefully not needed.\n", d->ident);
return 0;
}
@@ -1890,7 +1908,8 @@ static int __init set_realmode_power_off(const struct dmi_system_id *d)
{
if (apm_info.realmode_power_off == 0) {
apm_info.realmode_power_off = 1;
- printk(KERN_INFO "%s bios detected. Using realmode poweroff only.\n", d->ident);
+ printk(KERN_INFO "%s bios detected. "
+ "Using realmode poweroff only.\n", d->ident);
}
return 0;
}
@@ -1900,7 +1919,8 @@ static int __init set_apm_ints(const struct dmi_system_id *d)
{
if (apm_info.allow_ints == 0) {
apm_info.allow_ints = 1;
- printk(KERN_INFO "%s machine detected. Enabling interrupts during APM calls.\n", d->ident);
+ printk(KERN_INFO "%s machine detected. "
+ "Enabling interrupts during APM calls.\n", d->ident);
}
return 0;
}
@@ -1910,7 +1930,8 @@ static int __init apm_is_horked(const struct dmi_system_id *d)
{
if (apm_info.disabled == 0) {
apm_info.disabled = 1;
- printk(KERN_INFO "%s machine detected. Disabling APM.\n", d->ident);
+ printk(KERN_INFO "%s machine detected. "
+ "Disabling APM.\n", d->ident);
}
return 0;
}
@@ -1919,7 +1940,8 @@ static int __init apm_is_horked_d850md(const struct dmi_system_id *d)
{
if (apm_info.disabled == 0) {
apm_info.disabled = 1;
- printk(KERN_INFO "%s machine detected. Disabling APM.\n", d->ident);
+ printk(KERN_INFO "%s machine detected. "
+ "Disabling APM.\n", d->ident);
printk(KERN_INFO "This bug is fixed in bios P15 which is available for \n");
printk(KERN_INFO "download from support.intel.com \n");
}
@@ -1931,7 +1953,8 @@ static int __init apm_likes_to_melt(const struct dmi_system_id *d)
{
if (apm_info.forbid_idle == 0) {
apm_info.forbid_idle = 1;
- printk(KERN_INFO "%s machine detected. Disabling APM idle calls.\n", d->ident);
+ printk(KERN_INFO "%s machine detected. "
+ "Disabling APM idle calls.\n", d->ident);
}
return 0;
}
@@ -1954,7 +1977,8 @@ static int __init apm_likes_to_melt(const struct dmi_system_id *d)
static int __init broken_apm_power(const struct dmi_system_id *d)
{
apm_info.get_power_status_broken = 1;
- printk(KERN_WARNING "BIOS strings suggest APM bugs, disabling power status reporting.\n");
+ printk(KERN_WARNING "BIOS strings suggest APM bugs, "
+ "disabling power status reporting.\n");
return 0;
}
@@ -1965,7 +1989,8 @@ static int __init broken_apm_power(const struct dmi_system_id *d)
static int __init swab_apm_power_in_minutes(const struct dmi_system_id *d)
{
apm_info.get_power_status_swabinminutes = 1;
- printk(KERN_WARNING "BIOS strings suggest APM reports battery life in minutes and wrong byte order.\n");
+ printk(KERN_WARNING "BIOS strings suggest APM reports battery life "
+ "in minutes and wrong byte order.\n");
return 0;
}
@@ -1990,8 +2015,8 @@ static struct dmi_system_id __initdata apm_dmi_table[] = {
apm_is_horked, "Dell Inspiron 2500",
{ DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 2500"),
- DMI_MATCH(DMI_BIOS_VENDOR,"Phoenix Technologies LTD"),
- DMI_MATCH(DMI_BIOS_VERSION,"A11"), },
+ DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
+ DMI_MATCH(DMI_BIOS_VERSION, "A11"), },
},
{ /* Allow interrupts during suspend on Dell Inspiron laptops*/
set_apm_ints, "Dell Inspiron", {
@@ -2014,15 +2039,15 @@ static struct dmi_system_id __initdata apm_dmi_table[] = {
apm_is_horked, "Dell Dimension 4100",
{ DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
DMI_MATCH(DMI_PRODUCT_NAME, "XPS-Z"),
- DMI_MATCH(DMI_BIOS_VENDOR,"Intel Corp."),
- DMI_MATCH(DMI_BIOS_VERSION,"A11"), },
+ DMI_MATCH(DMI_BIOS_VENDOR, "Intel Corp."),
+ DMI_MATCH(DMI_BIOS_VERSION, "A11"), },
},
{ /* Allow interrupts during suspend on Compaq Laptops*/
set_apm_ints, "Compaq 12XL125",
{ DMI_MATCH(DMI_SYS_VENDOR, "Compaq"),
DMI_MATCH(DMI_PRODUCT_NAME, "Compaq PC"),
DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
- DMI_MATCH(DMI_BIOS_VERSION,"4.06"), },
+ DMI_MATCH(DMI_BIOS_VERSION, "4.06"), },
},
{ /* Allow interrupts during APM or the clock goes slow */
set_apm_ints, "ASUSTeK",
@@ -2064,15 +2089,15 @@ static struct dmi_system_id __initdata apm_dmi_table[] = {
apm_is_horked, "Sharp PC-PJ/AX",
{ DMI_MATCH(DMI_SYS_VENDOR, "SHARP"),
DMI_MATCH(DMI_PRODUCT_NAME, "PC-PJ/AX"),
- DMI_MATCH(DMI_BIOS_VENDOR,"SystemSoft"),
- DMI_MATCH(DMI_BIOS_VERSION,"Version R2.08"), },
+ DMI_MATCH(DMI_BIOS_VENDOR, "SystemSoft"),
+ DMI_MATCH(DMI_BIOS_VERSION, "Version R2.08"), },
},
{ /* APM crashes */
apm_is_horked, "Dell Inspiron 2500",
{ DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 2500"),
- DMI_MATCH(DMI_BIOS_VENDOR,"Phoenix Technologies LTD"),
- DMI_MATCH(DMI_BIOS_VERSION,"A11"), },
+ DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
+ DMI_MATCH(DMI_BIOS_VERSION, "A11"), },
},
{ /* APM idle hangs */
apm_likes_to_melt, "Jabil AMD",
@@ -2203,11 +2228,11 @@ static int __init apm_init(void)
return -ENODEV;
}
printk(KERN_INFO
- "apm: BIOS version %d.%d Flags 0x%02x (Driver version %s)\n",
- ((apm_info.bios.version >> 8) & 0xff),
- (apm_info.bios.version & 0xff),
- apm_info.bios.flags,
- driver_version);
+ "apm: BIOS version %d.%d Flags 0x%02x (Driver version %s)\n",
+ ((apm_info.bios.version >> 8) & 0xff),
+ (apm_info.bios.version & 0xff),
+ apm_info.bios.flags,
+ driver_version);
if ((apm_info.bios.flags & APM_32_BIT_SUPPORT) == 0) {
printk(KERN_INFO "apm: no 32 bit BIOS support\n");
return -ENODEV;
@@ -2312,9 +2337,9 @@ static int __init apm_init(void)
}
wake_up_process(kapmd_task);
- if (num_online_cpus() > 1 && !smp ) {
+ if (num_online_cpus() > 1 && !smp) {
printk(KERN_NOTICE
- "apm: disabled - APM is not SMP safe (power off active).\n");
+ "apm: disabled - APM is not SMP safe (power off active).\n");
return 0;
}
@@ -2339,7 +2364,7 @@ static int __init apm_init(void)
static void __exit apm_exit(void)
{
- int error;
+ int error;
if (set_pm_idle) {
pm_idle = original_pm_idle;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.