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Commit 2a68b995 authored by Lan Tianyu's avatar Lan Tianyu Committed by Rafael J. Wysocki
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ACPI / SBS: Remove SBS's proc directory 



SBS's proc directory isn't useded and so remove it. Prepare for removing
/proc/acpi directory.

Signed-off-by: default avatarLan Tianyu <tianyu.lan@intel.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 1e2d9cdf

drivers/acpi/sbs.c

+4 −321
Original line number Diff line number Diff line
@@ -30,12 +30,6 @@ 
#include <linux/moduleparam.h>

#include <linux/kernel.h>



#ifdef CONFIG_ACPI_PROCFS_POWER

#include <linux/proc_fs.h>

#include <linux/seq_file.h>

#include <asm/uaccess.h>

#endif



#include <linux/acpi.h>

#include <linux/timer.h>

#include <linux/jiffies.h>
@@ -67,11 +61,6 @@ static unsigned int cache_time = 1000; 
module_param(cache_time, uint, 0644);

MODULE_PARM_DESC(cache_time, "cache time in milliseconds");



extern struct proc_dir_entry *acpi_lock_ac_dir(void);

extern struct proc_dir_entry *acpi_lock_battery_dir(void);

extern void acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir);

extern void acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir);



#define MAX_SBS_BAT			4

#define ACPI_SBS_BLOCK_MAX		32
@@ -84,9 +73,6 @@ MODULE_DEVICE_TABLE(acpi, sbs_device_ids); 
struct acpi_battery {

	struct power_supply bat;

	struct acpi_sbs *sbs;

#ifdef CONFIG_ACPI_PROCFS_POWER

	struct proc_dir_entry *proc_entry;

#endif

	unsigned long update_time;

	char name[8];

	char manufacturer_name[ACPI_SBS_BLOCK_MAX];
@@ -119,9 +105,6 @@ struct acpi_sbs { 
	struct acpi_device *device;

	struct acpi_smb_hc *hc;

	struct mutex lock;

#ifdef CONFIG_ACPI_PROCFS_POWER

	struct proc_dir_entry *charger_entry;

#endif

	struct acpi_battery battery[MAX_SBS_BAT];

	u8 batteries_supported:4;

	u8 manager_present:1;
@@ -481,261 +464,6 @@ static struct device_attribute alarm_attr = { 
	.store = acpi_battery_alarm_store,

};



/* --------------------------------------------------------------------------

                              FS Interface (/proc/acpi)

   -------------------------------------------------------------------------- */



#ifdef CONFIG_ACPI_PROCFS_POWER

/* Generic Routines */

static int

acpi_sbs_add_fs(struct proc_dir_entry **dir,

		struct proc_dir_entry *parent_dir,

		char *dir_name,

		const struct file_operations *info_fops,

		const struct file_operations *state_fops,

		const struct file_operations *alarm_fops, void *data)

{

	printk(KERN_WARNING PREFIX "Deprecated procfs I/F for SBS is loaded,"

			" please retry with CONFIG_ACPI_PROCFS_POWER cleared\n");

	if (!*dir) {

		*dir = proc_mkdir(dir_name, parent_dir);

		if (!*dir) {

			return -ENODEV;

		}

	}



	/* 'info' [R] */

	if (info_fops)

		proc_create_data(ACPI_SBS_FILE_INFO, S_IRUGO, *dir,

				 info_fops, data);



	/* 'state' [R] */

	if (state_fops)

		proc_create_data(ACPI_SBS_FILE_STATE, S_IRUGO, *dir,

				 state_fops, data);



	/* 'alarm' [R/W] */

	if (alarm_fops)

		proc_create_data(ACPI_SBS_FILE_ALARM, S_IRUGO, *dir,

				 alarm_fops, data);

	return 0;

}



/* Smart Battery Interface */

static struct proc_dir_entry *acpi_battery_dir = NULL;



static inline char *acpi_battery_units(struct acpi_battery *battery)

{

	return acpi_battery_mode(battery) ? " mW" : " mA";

}





static int acpi_battery_read_info(struct seq_file *seq, void *offset)

{

	struct acpi_battery *battery = seq->private;

	struct acpi_sbs *sbs = battery->sbs;

	int result = 0;



	mutex_lock(&sbs->lock);



	seq_printf(seq, "present:                 %s\n",

		   (battery->present) ? "yes" : "no");

	if (!battery->present)

		goto end;



	seq_printf(seq, "design capacity:         %i%sh\n",

		   battery->design_capacity * acpi_battery_scale(battery),

		   acpi_battery_units(battery));

	seq_printf(seq, "last full capacity:      %i%sh\n",

		   battery->full_charge_capacity * acpi_battery_scale(battery),

		   acpi_battery_units(battery));

	seq_printf(seq, "battery technology:      rechargeable\n");

	seq_printf(seq, "design voltage:          %i mV\n",

		   battery->design_voltage * acpi_battery_vscale(battery));

	seq_printf(seq, "design capacity warning: unknown\n");

	seq_printf(seq, "design capacity low:     unknown\n");

	seq_printf(seq, "cycle count:		  %i\n", battery->cycle_count);

	seq_printf(seq, "capacity granularity 1:  unknown\n");

	seq_printf(seq, "capacity granularity 2:  unknown\n");

	seq_printf(seq, "model number:            %s\n", battery->device_name);

	seq_printf(seq, "serial number:           %i\n",

		   battery->serial_number);

	seq_printf(seq, "battery type:            %s\n",

		   battery->device_chemistry);

	seq_printf(seq, "OEM info:                %s\n",

		   battery->manufacturer_name);

      end:

	mutex_unlock(&sbs->lock);

	return result;

}



static int acpi_battery_info_open_fs(struct inode *inode, struct file *file)

{

	return single_open(file, acpi_battery_read_info, PDE_DATA(inode));

}



static int acpi_battery_read_state(struct seq_file *seq, void *offset)

{

	struct acpi_battery *battery = seq->private;

	struct acpi_sbs *sbs = battery->sbs;

	int rate;



	mutex_lock(&sbs->lock);

	seq_printf(seq, "present:                 %s\n",

		   (battery->present) ? "yes" : "no");

	if (!battery->present)

		goto end;



	acpi_battery_get_state(battery);

	seq_printf(seq, "capacity state:          %s\n",

		   (battery->state & 0x0010) ? "critical" : "ok");

	seq_printf(seq, "charging state:          %s\n",

		   (battery->rate_now < 0) ? "discharging" :

		   ((battery->rate_now > 0) ? "charging" : "charged"));

	rate = abs(battery->rate_now) * acpi_battery_ipscale(battery);

	rate *= (acpi_battery_mode(battery))?(battery->voltage_now *

			acpi_battery_vscale(battery)/1000):1;

	seq_printf(seq, "present rate:            %d%s\n", rate,

		   acpi_battery_units(battery));

	seq_printf(seq, "remaining capacity:      %i%sh\n",

		   battery->capacity_now * acpi_battery_scale(battery),

		   acpi_battery_units(battery));

	seq_printf(seq, "present voltage:         %i mV\n",

		   battery->voltage_now * acpi_battery_vscale(battery));



      end:

	mutex_unlock(&sbs->lock);

	return 0;

}



static int acpi_battery_state_open_fs(struct inode *inode, struct file *file)

{

	return single_open(file, acpi_battery_read_state, PDE_DATA(inode));

}



static int acpi_battery_read_alarm(struct seq_file *seq, void *offset)

{

	struct acpi_battery *battery = seq->private;

	struct acpi_sbs *sbs = battery->sbs;

	int result = 0;



	mutex_lock(&sbs->lock);



	if (!battery->present) {

		seq_printf(seq, "present:                 no\n");

		goto end;

	}



	acpi_battery_get_alarm(battery);

	seq_printf(seq, "alarm:                   ");

	if (battery->alarm_capacity)

		seq_printf(seq, "%i%sh\n",

			   battery->alarm_capacity *

			   acpi_battery_scale(battery),

			   acpi_battery_units(battery));

	else

		seq_printf(seq, "disabled\n");

      end:

	mutex_unlock(&sbs->lock);

	return result;

}



static ssize_t

acpi_battery_write_alarm(struct file *file, const char __user * buffer,

			 size_t count, loff_t * ppos)

{

	struct seq_file *seq = file->private_data;

	struct acpi_battery *battery = seq->private;

	struct acpi_sbs *sbs = battery->sbs;

	char alarm_string[12] = { '\0' };

	int result = 0;

	mutex_lock(&sbs->lock);

	if (!battery->present) {

		result = -ENODEV;

		goto end;

	}

	if (count > sizeof(alarm_string) - 1) {

		result = -EINVAL;

		goto end;

	}

	if (copy_from_user(alarm_string, buffer, count)) {

		result = -EFAULT;

		goto end;

	}

	alarm_string[count] = 0;

	battery->alarm_capacity = simple_strtoul(alarm_string, NULL, 0) /

					acpi_battery_scale(battery);

	acpi_battery_set_alarm(battery);

      end:

	mutex_unlock(&sbs->lock);

	if (result)

		return result;

	return count;

}



static int acpi_battery_alarm_open_fs(struct inode *inode, struct file *file)

{

	return single_open(file, acpi_battery_read_alarm, PDE_DATA(inode));

}



static const struct file_operations acpi_battery_info_fops = {

	.open = acpi_battery_info_open_fs,

	.read = seq_read,

	.llseek = seq_lseek,

	.release = single_release,

	.owner = THIS_MODULE,

};



static const struct file_operations acpi_battery_state_fops = {

	.open = acpi_battery_state_open_fs,

	.read = seq_read,

	.llseek = seq_lseek,

	.release = single_release,

	.owner = THIS_MODULE,

};



static const struct file_operations acpi_battery_alarm_fops = {

	.open = acpi_battery_alarm_open_fs,

	.read = seq_read,

	.write = acpi_battery_write_alarm,

	.llseek = seq_lseek,

	.release = single_release,

	.owner = THIS_MODULE,

};



/* Legacy AC Adapter Interface */



static struct proc_dir_entry *acpi_ac_dir = NULL;



static int acpi_ac_read_state(struct seq_file *seq, void *offset)

{



	struct acpi_sbs *sbs = seq->private;



	mutex_lock(&sbs->lock);



	seq_printf(seq, "state:                   %s\n",

		   sbs->charger_present ? "on-line" : "off-line");



	mutex_unlock(&sbs->lock);

	return 0;

}



static int acpi_ac_state_open_fs(struct inode *inode, struct file *file)

{

	return single_open(file, acpi_ac_read_state, PDE_DATA(inode));

}



static const struct file_operations acpi_ac_state_fops = {

	.open = acpi_ac_state_open_fs,

	.read = seq_read,

	.llseek = seq_lseek,

	.release = single_release,

	.owner = THIS_MODULE,

};



#endif



/* --------------------------------------------------------------------------

                                 Driver Interface

   -------------------------------------------------------------------------- */
@@ -781,12 +509,6 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id) 
		return result;



	sprintf(battery->name, ACPI_BATTERY_DIR_NAME, id);

#ifdef CONFIG_ACPI_PROCFS_POWER

	acpi_sbs_add_fs(&battery->proc_entry, acpi_battery_dir,

			battery->name, &acpi_battery_info_fops,

			&acpi_battery_state_fops, &acpi_battery_alarm_fops,

			battery);

#endif

	battery->bat.name = battery->name;

	battery->bat.type = POWER_SUPPLY_TYPE_BATTERY;

	if (!acpi_battery_mode(battery)) {
@@ -822,10 +544,6 @@ static void acpi_battery_remove(struct acpi_sbs *sbs, int id) 
			device_remove_file(battery->bat.dev, &alarm_attr);

		power_supply_unregister(&battery->bat);

	}

#ifdef CONFIG_ACPI_PROCFS_POWER

	proc_remove(battery->proc_entry);

	battery->proc_entry = NULL;

#endif

}



static int acpi_charger_add(struct acpi_sbs *sbs)
@@ -835,13 +553,7 @@ static int acpi_charger_add(struct acpi_sbs *sbs) 
	result = acpi_ac_get_present(sbs);

	if (result)

		goto end;

#ifdef CONFIG_ACPI_PROCFS_POWER

	result = acpi_sbs_add_fs(&sbs->charger_entry, acpi_ac_dir,

				 ACPI_AC_DIR_NAME, NULL,

				 &acpi_ac_state_fops, NULL, sbs);

	if (result)

		goto end;

#endif



	sbs->charger.name = "sbs-charger";

	sbs->charger.type = POWER_SUPPLY_TYPE_MAINS;

	sbs->charger.properties = sbs_ac_props;
@@ -859,10 +571,6 @@ static void acpi_charger_remove(struct acpi_sbs *sbs) 
{

	if (sbs->charger.dev)

		power_supply_unregister(&sbs->charger);

#ifdef CONFIG_ACPI_PROCFS_POWER

	proc_remove(sbs->charger_entry);

	sbs->charger_entry = NULL;

#endif

}



static void acpi_sbs_callback(void *context)
@@ -950,20 +658,6 @@ static int acpi_sbs_remove(struct acpi_device *device) 
	return 0;

}



static void acpi_sbs_rmdirs(void)

{

#ifdef CONFIG_ACPI_PROCFS_POWER

	if (acpi_ac_dir) {

		acpi_unlock_ac_dir(acpi_ac_dir);

		acpi_ac_dir = NULL;

	}

	if (acpi_battery_dir) {

		acpi_unlock_battery_dir(acpi_battery_dir);

		acpi_battery_dir = NULL;

	}

#endif

}



#ifdef CONFIG_PM_SLEEP

static int acpi_sbs_resume(struct device *dev)

{
@@ -995,28 +689,17 @@ static int __init acpi_sbs_init(void) 


	if (acpi_disabled)

		return -ENODEV;

#ifdef CONFIG_ACPI_PROCFS_POWER

	acpi_ac_dir = acpi_lock_ac_dir();

	if (!acpi_ac_dir)

		return -ENODEV;

	acpi_battery_dir = acpi_lock_battery_dir();

	if (!acpi_battery_dir) {

		acpi_sbs_rmdirs();

		return -ENODEV;

	}

#endif



	result = acpi_bus_register_driver(&acpi_sbs_driver);

	if (result < 0) {

		acpi_sbs_rmdirs();

	if (result < 0)

		return -ENODEV;

	}



	return 0;

}



static void __exit acpi_sbs_exit(void)

{

	acpi_bus_unregister_driver(&acpi_sbs_driver);

	acpi_sbs_rmdirs();

	return;

}