#include <linux/init.h>
#include <linux/slab.h>
#include <linux/types.h>
-
-#ifdef CONFIG_ACPI_PROCFS
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#endif
-
#include <linux/jiffies.h>
#include <linux/kmod.h>
#include <linux/reboot.h>
struct mutex lock;
};
-#ifdef CONFIG_ACPI_PROCFS
-static int acpi_thermal_state_open_fs(struct inode *inode, struct file *file);
-static int acpi_thermal_temp_open_fs(struct inode *inode, struct file *file);
-static int acpi_thermal_trip_open_fs(struct inode *inode, struct file *file);
-static int acpi_thermal_cooling_open_fs(struct inode *inode, struct file *file);
-static ssize_t acpi_thermal_write_cooling_mode(struct file *,
- const char __user *, size_t,
- loff_t *);
-static int acpi_thermal_polling_open_fs(struct inode *inode, struct file *file);
-static ssize_t acpi_thermal_write_polling(struct file *, const char __user *,
- size_t, loff_t *);
-
-static const struct file_operations acpi_thermal_state_fops = {
- .owner = THIS_MODULE,
- .open = acpi_thermal_state_open_fs,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static const struct file_operations acpi_thermal_temp_fops = {
- .owner = THIS_MODULE,
- .open = acpi_thermal_temp_open_fs,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static const struct file_operations acpi_thermal_trip_fops = {
- .owner = THIS_MODULE,
- .open = acpi_thermal_trip_open_fs,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static const struct file_operations acpi_thermal_cooling_fops = {
- .owner = THIS_MODULE,
- .open = acpi_thermal_cooling_open_fs,
- .read = seq_read,
- .write = acpi_thermal_write_cooling_mode,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static const struct file_operations acpi_thermal_polling_fops = {
- .owner = THIS_MODULE,
- .open = acpi_thermal_polling_open_fs,
- .read = seq_read,
- .write = acpi_thermal_write_polling,
- .llseek = seq_lseek,
- .release = single_release,
-};
-#endif /* CONFIG_ACPI_PROCFS*/
-
/* --------------------------------------------------------------------------
Thermal Zone Management
-------------------------------------------------------------------------- */
/* --------------------------------------------------------------------------
- FS Interface (/proc)
- -------------------------------------------------------------------------- */
-#ifdef CONFIG_ACPI_PROCFS
-static struct proc_dir_entry *acpi_thermal_dir;
-
-static int acpi_thermal_state_seq_show(struct seq_file *seq, void *offset)
-{
- struct acpi_thermal *tz = seq->private;
-
-
- if (!tz)
- goto end;
-
- seq_puts(seq, "state: ");
-
- if (!tz->state.critical && !tz->state.hot && !tz->state.passive
- && !tz->state.active)
- seq_puts(seq, "ok\n");
- else {
- if (tz->state.critical)
- seq_puts(seq, "critical ");
- if (tz->state.hot)
- seq_puts(seq, "hot ");
- if (tz->state.passive)
- seq_puts(seq, "passive ");
- if (tz->state.active)
- seq_printf(seq, "active[%d]", tz->state.active_index);
- seq_puts(seq, "\n");
- }
-
- end:
- return 0;
-}
-
-static int acpi_thermal_state_open_fs(struct inode *inode, struct file *file)
-{
- return single_open(file, acpi_thermal_state_seq_show, PDE(inode)->data);
-}
-
-static int acpi_thermal_temp_seq_show(struct seq_file *seq, void *offset)
-{
- int result = 0;
- struct acpi_thermal *tz = seq->private;
-
-
- if (!tz)
- goto end;
-
- result = acpi_thermal_get_temperature(tz);
- if (result)
- goto end;
-
- seq_printf(seq, "temperature: %ld C\n",
- KELVIN_TO_CELSIUS(tz->temperature));
-
- end:
- return 0;
-}
-
-static int acpi_thermal_temp_open_fs(struct inode *inode, struct file *file)
-{
- return single_open(file, acpi_thermal_temp_seq_show, PDE(inode)->data);
-}
-
-static int acpi_thermal_trip_seq_show(struct seq_file *seq, void *offset)
-{
- struct acpi_thermal *tz = seq->private;
- struct acpi_device *device;
- acpi_status status;
-
- int i = 0;
- int j = 0;
-
-
- if (!tz)
- goto end;
-
- if (tz->trips.critical.flags.valid)
- seq_printf(seq, "critical (S5): %ld C%s",
- KELVIN_TO_CELSIUS(tz->trips.critical.temperature),
- nocrt ? " <disabled>\n" : "\n");
-
- if (tz->trips.hot.flags.valid)
- seq_printf(seq, "hot (S4): %ld C%s",
- KELVIN_TO_CELSIUS(tz->trips.hot.temperature),
- nocrt ? " <disabled>\n" : "\n");
-
- if (tz->trips.passive.flags.valid) {
- seq_printf(seq,
- "passive: %ld C: tc1=%lu tc2=%lu tsp=%lu devices=",
- KELVIN_TO_CELSIUS(tz->trips.passive.temperature),
- tz->trips.passive.tc1, tz->trips.passive.tc2,
- tz->trips.passive.tsp);
- for (j = 0; j < tz->trips.passive.devices.count; j++) {
- status = acpi_bus_get_device(tz->trips.passive.devices.
- handles[j], &device);
- seq_printf(seq, "%4.4s ", status ? "" :
- acpi_device_bid(device));
- }
- seq_puts(seq, "\n");
- } else {
- seq_printf(seq, "passive (forced):");
- if (tz->thermal_zone->forced_passive)
- seq_printf(seq, " %i C\n",
- tz->thermal_zone->forced_passive / 1000);
- else
- seq_printf(seq, "<not set>\n");
- }
-
- for (i = 0; i < ACPI_THERMAL_MAX_ACTIVE; i++) {
- if (!(tz->trips.active[i].flags.valid))
- break;
- seq_printf(seq, "active[%d]: %ld C: devices=",
- i,
- KELVIN_TO_CELSIUS(tz->trips.active[i].temperature));
- for (j = 0; j < tz->trips.active[i].devices.count; j++){
- status = acpi_bus_get_device(tz->trips.active[i].
- devices.handles[j],
- &device);
- seq_printf(seq, "%4.4s ", status ? "" :
- acpi_device_bid(device));
- }
- seq_puts(seq, "\n");
- }
-
- end:
- return 0;
-}
-
-static int acpi_thermal_trip_open_fs(struct inode *inode, struct file *file)
-{
- return single_open(file, acpi_thermal_trip_seq_show, PDE(inode)->data);
-}
-
-static int acpi_thermal_cooling_seq_show(struct seq_file *seq, void *offset)
-{
- struct acpi_thermal *tz = seq->private;
-
-
- if (!tz)
- goto end;
-
- if (!tz->flags.cooling_mode)
- seq_puts(seq, "<setting not supported>\n");
- else
- seq_puts(seq, "0 - Active; 1 - Passive\n");
-
- end:
- return 0;
-}
-
-static int acpi_thermal_cooling_open_fs(struct inode *inode, struct file *file)
-{
- return single_open(file, acpi_thermal_cooling_seq_show,
- PDE(inode)->data);
-}
-
-static ssize_t
-acpi_thermal_write_cooling_mode(struct file *file,
- const char __user * buffer,
- size_t count, loff_t * ppos)
-{
- struct seq_file *m = file->private_data;
- struct acpi_thermal *tz = m->private;
- int result = 0;
- char mode_string[12] = { '\0' };
-
-
- if (!tz || (count > sizeof(mode_string) - 1))
- return -EINVAL;
-
- if (!tz->flags.cooling_mode)
- return -ENODEV;
-
- if (copy_from_user(mode_string, buffer, count))
- return -EFAULT;
-
- mode_string[count] = '\0';
-
- result = acpi_thermal_set_cooling_mode(tz,
- simple_strtoul(mode_string, NULL,
- 0));
- if (result)
- return result;
-
- acpi_thermal_check(tz);
-
- return count;
-}
-
-static int acpi_thermal_polling_seq_show(struct seq_file *seq, void *offset)
-{
- struct acpi_thermal *tz = seq->private;
-
-
- if (!tz)
- goto end;
-
- if (!tz->thermal_zone->polling_delay) {
- seq_puts(seq, "<polling disabled>\n");
- goto end;
- }
-
- seq_printf(seq, "polling frequency: %d seconds\n",
- (tz->thermal_zone->polling_delay / 1000));
-
- end:
- return 0;
-}
-
-static int acpi_thermal_polling_open_fs(struct inode *inode, struct file *file)
-{
- return single_open(file, acpi_thermal_polling_seq_show,
- PDE(inode)->data);
-}
-
-static int acpi_thermal_set_polling(struct acpi_thermal *tz, int seconds)
-{
- if (!tz)
- return -EINVAL;
-
- /* Convert value to deci-seconds */
- tz->polling_frequency = seconds * 10;
-
- tz->thermal_zone->polling_delay = seconds * 1000;
-
- if (tz->tz_enabled)
- thermal_zone_device_update(tz->thermal_zone);
-
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Polling frequency set to %lu seconds\n",
- tz->polling_frequency/10));
-
- return 0;
-}
-
-static ssize_t
-acpi_thermal_write_polling(struct file *file,
- const char __user * buffer,
- size_t count, loff_t * ppos)
-{
- struct seq_file *m = file->private_data;
- struct acpi_thermal *tz = m->private;
- int result = 0;
- char polling_string[12] = { '\0' };
- int seconds = 0;
-
-
- if (!tz || (count > sizeof(polling_string) - 1))
- return -EINVAL;
-
- if (copy_from_user(polling_string, buffer, count))
- return -EFAULT;
-
- polling_string[count] = '\0';
-
- seconds = simple_strtoul(polling_string, NULL, 0);
-
- result = acpi_thermal_set_polling(tz, seconds);
- if (result)
- return result;
-
- acpi_thermal_check(tz);
-
- return count;
-}
-
-static int acpi_thermal_add_fs(struct acpi_device *device)
-{
- struct proc_dir_entry *entry = NULL;
-
-
- if (!acpi_device_dir(device)) {
- acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
- acpi_thermal_dir);
- if (!acpi_device_dir(device))
- return -ENODEV;
- }
-
- /* 'state' [R] */
- entry = proc_create_data(ACPI_THERMAL_FILE_STATE,
- S_IRUGO, acpi_device_dir(device),
- &acpi_thermal_state_fops,
- acpi_driver_data(device));
- if (!entry)
- return -ENODEV;
-
- /* 'temperature' [R] */
- entry = proc_create_data(ACPI_THERMAL_FILE_TEMPERATURE,
- S_IRUGO, acpi_device_dir(device),
- &acpi_thermal_temp_fops,
- acpi_driver_data(device));
- if (!entry)
- return -ENODEV;
-
- /* 'trip_points' [R] */
- entry = proc_create_data(ACPI_THERMAL_FILE_TRIP_POINTS,
- S_IRUGO,
- acpi_device_dir(device),
- &acpi_thermal_trip_fops,
- acpi_driver_data(device));
- if (!entry)
- return -ENODEV;
-
- /* 'cooling_mode' [R/W] */
- entry = proc_create_data(ACPI_THERMAL_FILE_COOLING_MODE,
- S_IFREG | S_IRUGO | S_IWUSR,
- acpi_device_dir(device),
- &acpi_thermal_cooling_fops,
- acpi_driver_data(device));
- if (!entry)
- return -ENODEV;
-
- /* 'polling_frequency' [R/W] */
- entry = proc_create_data(ACPI_THERMAL_FILE_POLLING_FREQ,
- S_IFREG | S_IRUGO | S_IWUSR,
- acpi_device_dir(device),
- &acpi_thermal_polling_fops,
- acpi_driver_data(device));
- if (!entry)
- return -ENODEV;
- return 0;
-}
-
-static int acpi_thermal_remove_fs(struct acpi_device *device)
-{
-
- if (acpi_device_dir(device)) {
- remove_proc_entry(ACPI_THERMAL_FILE_POLLING_FREQ,
- acpi_device_dir(device));
- remove_proc_entry(ACPI_THERMAL_FILE_COOLING_MODE,
- acpi_device_dir(device));
- remove_proc_entry(ACPI_THERMAL_FILE_TRIP_POINTS,
- acpi_device_dir(device));
- remove_proc_entry(ACPI_THERMAL_FILE_TEMPERATURE,
- acpi_device_dir(device));
- remove_proc_entry(ACPI_THERMAL_FILE_STATE,
- acpi_device_dir(device));
- remove_proc_entry(acpi_device_bid(device), acpi_thermal_dir);
- acpi_device_dir(device) = NULL;
- }
-
- return 0;
-}
-#else
-static inline int acpi_thermal_add_fs(struct acpi_device *device) { return 0; }
-static inline int acpi_thermal_remove_fs(struct acpi_device *device)
-{
- return 0;
-}
-#endif /* CONFIG_ACPI_PROCFS */
-/* --------------------------------------------------------------------------
Driver Interface
-------------------------------------------------------------------------- */
if (result)
goto free_memory;
- result = acpi_thermal_add_fs(device);
- if (result)
- goto unregister_thermal_zone;
-
printk(KERN_INFO PREFIX "%s [%s] (%ld C)\n",
acpi_device_name(device), acpi_device_bid(device),
KELVIN_TO_CELSIUS(tz->temperature));
goto end;
-unregister_thermal_zone:
- thermal_zone_device_unregister(tz->thermal_zone);
free_memory:
kfree(tz);
end:
tz = acpi_driver_data(device);
- acpi_thermal_remove_fs(device);
acpi_thermal_unregister_thermal_zone(tz);
mutex_destroy(&tz->lock);
kfree(tz);
return -ENODEV;
}
-#ifdef CONFIG_ACPI_PROCFS
- acpi_thermal_dir = proc_mkdir(ACPI_THERMAL_CLASS, acpi_root_dir);
- if (!acpi_thermal_dir)
- return -ENODEV;
-#endif
-
result = acpi_bus_register_driver(&acpi_thermal_driver);
- if (result < 0) {
-#ifdef CONFIG_ACPI_PROCFS
- remove_proc_entry(ACPI_THERMAL_CLASS, acpi_root_dir);
-#endif
+ if (result < 0)
return -ENODEV;
- }
return 0;
}
acpi_bus_unregister_driver(&acpi_thermal_driver);
-#ifdef CONFIG_ACPI_PROCFS
- remove_proc_entry(ACPI_THERMAL_CLASS, acpi_root_dir);
-#endif
-
return;
}
projects / platform / kernel / kernel-mfld-blackbay.git / commitdiff