#define ACPI_SYSTEM_FILE_SLEEP "sleep"
#define ACPI_SYSTEM_FILE_ALARM "alarm"
+#define ACPI_SYSTEM_FILE_WAKEUP_DEVICE "wakeup"
#define _COMPONENT ACPI_SYSTEM_COMPONENT
ACPI_MODULE_NAME ("sleep")
state = simple_strtoul(str, NULL, 0);
#ifdef CONFIG_SOFTWARE_SUSPEND
if (state == 4) {
- software_suspend();
+ error = software_suspend();
goto Done;
}
#endif
{
u32 sec, min, hr;
u32 day, mo, yr;
+ unsigned char rtc_control = 0;
ACPI_FUNCTION_TRACE("acpi_system_alarm_seq_show");
sec = CMOS_READ(RTC_SECONDS_ALARM);
min = CMOS_READ(RTC_MINUTES_ALARM);
hr = CMOS_READ(RTC_HOURS_ALARM);
+ rtc_control = CMOS_READ(RTC_CONTROL);
-#if 0 /* If we ever get an FACP with proper values... */
+ /* If we ever get an FACP with proper values... */
if (acpi_gbl_FADT->day_alrm)
- day = CMOS_READ(acpi_gbl_FADT->day_alrm);
+ /* ACPI spec: only low 6 its should be cared */
+ day = CMOS_READ(acpi_gbl_FADT->day_alrm) & 0x3F;
else
day = CMOS_READ(RTC_DAY_OF_MONTH);
if (acpi_gbl_FADT->mon_alrm)
yr = CMOS_READ(acpi_gbl_FADT->century) * 100 + CMOS_READ(RTC_YEAR);
else
yr = CMOS_READ(RTC_YEAR);
-#else
- day = CMOS_READ(RTC_DAY_OF_MONTH);
- mo = CMOS_READ(RTC_MONTH);
- yr = CMOS_READ(RTC_YEAR);
-#endif
spin_unlock(&rtc_lock);
- BCD_TO_BIN(sec);
- BCD_TO_BIN(min);
- BCD_TO_BIN(hr);
- BCD_TO_BIN(day);
- BCD_TO_BIN(mo);
- BCD_TO_BIN(yr);
+ if (!(rtc_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) {
+ BCD_TO_BIN(sec);
+ BCD_TO_BIN(min);
+ BCD_TO_BIN(hr);
+ BCD_TO_BIN(day);
+ BCD_TO_BIN(mo);
+ BCD_TO_BIN(yr);
+ }
-#if 0
/* we're trusting the FADT (see above)*/
-#else
+ if (!acpi_gbl_FADT->century)
/* If we're not trusting the FADT, we should at least make it
* right for _this_ century... ehm, what is _this_ century?
*
* s/2000/2100
*
*/
- yr += 2000;
-#endif
+ yr += 2000;
seq_printf(seq,"%4.4u-", yr);
(mo > 12) ? seq_puts(seq, "**-") : seq_printf(seq, "%2.2u-", mo);
}
spin_lock_irq(&rtc_lock);
+ /*
+ * Disable alarm interrupt before setting alarm timer or else
+ * when ACPI_EVENT_RTC is enabled, a spurious ACPI interrupt occurs
+ */
+ rtc_control &= ~RTC_AIE;
+ CMOS_WRITE(rtc_control, RTC_CONTROL);
+ CMOS_READ(RTC_INTR_FLAGS);
/* write the fields the rtc knows about */
CMOS_WRITE(hr, RTC_HOURS_ALARM);
* offsets into the CMOS RAM here -- which for some reason are pointing
* to the RTC area of memory.
*/
-#if 0
if (acpi_gbl_FADT->day_alrm)
CMOS_WRITE(day, acpi_gbl_FADT->day_alrm);
if (acpi_gbl_FADT->mon_alrm)
CMOS_WRITE(mo, acpi_gbl_FADT->mon_alrm);
if (acpi_gbl_FADT->century)
CMOS_WRITE(yr/100, acpi_gbl_FADT->century);
-#endif
/* enable the rtc alarm interrupt */
- if (!(rtc_control & RTC_AIE)) {
- rtc_control |= RTC_AIE;
- CMOS_WRITE(rtc_control,RTC_CONTROL);
- CMOS_READ(RTC_INTR_FLAGS);
- }
+ rtc_control |= RTC_AIE;
+ CMOS_WRITE(rtc_control, RTC_CONTROL);
+ CMOS_READ(RTC_INTR_FLAGS);
spin_unlock_irq(&rtc_lock);
- acpi_set_register(ACPI_BITREG_RT_CLOCK_ENABLE, 1, ACPI_MTX_LOCK);
+ acpi_clear_event(ACPI_EVENT_RTC);
+ acpi_enable_event(ACPI_EVENT_RTC, 0);
*ppos += count;
return_VALUE(result ? result : count);
}
+extern struct list_head acpi_wakeup_device_list;
+extern spinlock_t acpi_device_lock;
+
+static int
+acpi_system_wakeup_device_seq_show(struct seq_file *seq, void *offset)
+{
+ struct list_head * node, * next;
+
+ seq_printf(seq, "Device Sleep state Status\n");
+
+ spin_lock(&acpi_device_lock);
+ list_for_each_safe(node, next, &acpi_wakeup_device_list) {
+ struct acpi_device * dev = container_of(node, struct acpi_device, wakeup_list);
+
+ if (!dev->wakeup.flags.valid)
+ continue;
+ spin_unlock(&acpi_device_lock);
+ if (dev->wakeup.flags.run_wake)
+ seq_printf(seq, "%4s %4d %8s\n",
+ dev->pnp.bus_id, (u32) dev->wakeup.sleep_state,
+ dev->wakeup.state.enabled ? "*enabled" : "*disabled");
+ else
+ seq_printf(seq, "%4s %4d %8s\n",
+ dev->pnp.bus_id, (u32) dev->wakeup.sleep_state,
+ dev->wakeup.state.enabled ? "enabled" : "disabled");
+ spin_lock(&acpi_device_lock);
+ }
+ spin_unlock(&acpi_device_lock);
+ return 0;
+}
+
+static ssize_t
+acpi_system_write_wakeup_device (
+ struct file *file,
+ const char __user *buffer,
+ size_t count,
+ loff_t *ppos)
+{
+ struct list_head * node, * next;
+ char strbuf[5];
+ char str[5] = "";
+ int len = count;
+ struct acpi_device *found_dev = NULL;
+
+ if (len > 4) len = 4;
+
+ if (copy_from_user(strbuf, buffer, len))
+ return -EFAULT;
+ strbuf[len] = '\0';
+ sscanf(strbuf, "%s", str);
+
+ spin_lock(&acpi_device_lock);
+ list_for_each_safe(node, next, &acpi_wakeup_device_list) {
+ struct acpi_device * dev = container_of(node, struct acpi_device, wakeup_list);
+ if (!dev->wakeup.flags.valid)
+ continue;
+
+ if (!strncmp(dev->pnp.bus_id, str, 4)) {
+ dev->wakeup.state.enabled = dev->wakeup.state.enabled ? 0:1;
+ found_dev = dev;
+ break;
+ }
+ }
+ if (found_dev) {
+ list_for_each_safe(node, next, &acpi_wakeup_device_list) {
+ struct acpi_device * dev = container_of(node,
+ struct acpi_device, wakeup_list);
+
+ if ((dev != found_dev) &&
+ (dev->wakeup.gpe_number == found_dev->wakeup.gpe_number) &&
+ (dev->wakeup.gpe_device == found_dev->wakeup.gpe_device)) {
+ printk(KERN_WARNING "ACPI: '%s' and '%s' have the same GPE, "
+ "can't disable/enable one seperately\n",
+ dev->pnp.bus_id, found_dev->pnp.bus_id);
+ dev->wakeup.state.enabled = found_dev->wakeup.state.enabled;
+ }
+ }
+ }
+ spin_unlock(&acpi_device_lock);
+ return count;
+}
+
+static int
+acpi_system_wakeup_device_open_fs(struct inode *inode, struct file *file)
+{
+ return single_open(file, acpi_system_wakeup_device_seq_show, PDE(inode)->data);
+}
+
+static struct file_operations acpi_system_wakeup_device_fops = {
+ .open = acpi_system_wakeup_device_open_fs,
+ .read = seq_read,
+ .write = acpi_system_write_wakeup_device,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
static struct file_operations acpi_system_sleep_fops = {
.open = acpi_system_sleep_open_fs,
};
+static u32 rtc_handler(void * context)
+{
+ acpi_clear_event(ACPI_EVENT_RTC);
+ acpi_disable_event(ACPI_EVENT_RTC, 0);
+
+ return ACPI_INTERRUPT_HANDLED;
+}
+
static int acpi_sleep_proc_init(void)
{
struct proc_dir_entry *entry = NULL;
S_IFREG|S_IRUGO|S_IWUSR, acpi_root_dir);
if (entry)
entry->proc_fops = &acpi_system_alarm_fops;
+
+ /* 'wakeup device' [R/W]*/
+ entry = create_proc_entry(ACPI_SYSTEM_FILE_WAKEUP_DEVICE,
+ S_IFREG|S_IRUGO|S_IWUSR, acpi_root_dir);
+ if (entry)
+ entry->proc_fops = &acpi_system_wakeup_device_fops;
+
+ acpi_install_fixed_event_handler(ACPI_EVENT_RTC, rtc_handler, NULL);
return 0;
}
git://git.onelab.eu / linux-2.6.git / blobdiff