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ACPI: add ACPICA version in sysfs

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Add an ACPI attribute to indicate ACPICA version.
/proc/acpi/version is deprecated by /sys/module/acpi/parameters/acpica_version.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Zhang Rui 2007-01-29 11:02:42 +08:00 committed by Len Brown
parent 219c3c8e26
commit 5bb730fda8
2 changed files with 27 additions and 1 deletions
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4
drivers/acpi/Kconfig
View file

@ -87,7 +87,9 @@ config ACPI_PROCFS
and this proc interface will be removed some time later,
it's marked as deprecated.
( /proc/acpi/debug_layer && debug_level are deprecated by
/sys/module/acpi/parameters/debug_layer && debug_level. )
/sys/module/acpi/parameters/debug_layer && debug_level.
/proc/acpi/info is deprecated by
/sys/module/acpi/parameters/acpica_version )
config ACPI_AC
tristate "AC Adapter"

24
drivers/acpi/system.c
View file

@ -32,6 +32,11 @@
#define _COMPONENT ACPI_SYSTEM_COMPONENT
ACPI_MODULE_NAME("acpi_system")
#ifdef MODULE_PARAM_PREFIX
#undef MODULE_PARAM_PREFIX
#endif
#define MODULE_PARAM_PREFIX "acpi."
#define ACPI_SYSTEM_CLASS "system"
#define ACPI_SYSTEM_DRIVER_NAME "ACPI System Driver"
#define ACPI_SYSTEM_DEVICE_NAME "System"
@ -41,9 +46,23 @@ ACPI_MODULE_NAME("acpi_system")
#define ACPI_SYSTEM_FILE_FADT "fadt"
extern struct fadt_descriptor acpi_fadt;
/*
* Make ACPICA version work as module param
*/
static int param_get_acpica_version(char *buffer, struct kernel_param *kp) {
int result;
result = sprintf(buffer, "%x", ACPI_CA_VERSION);
return result;
}
module_param_call(acpica_version, NULL, param_get_acpica_version, NULL, 0444);
/* --------------------------------------------------------------------------
FS Interface (/proc)
-------------------------------------------------------------------------- */
#ifdef CONFIG_ACPI_PROCFS
static int acpi_system_read_info(struct seq_file *seq, void *offset)
{
@ -63,6 +82,7 @@ static const struct file_operations acpi_system_info_ops = {
.llseek = seq_lseek,
.release = single_release,
};
#endif
static ssize_t acpi_system_read_dsdt(struct file *, char __user *, size_t,
loff_t *);
@ -128,6 +148,7 @@ static int __init acpi_system_init(void)
if (acpi_disabled)
return 0;
#ifdef CONFIG_ACPI_PROCFS
/* 'info' [R] */
name = ACPI_SYSTEM_FILE_INFO;
entry = create_proc_entry(name, S_IRUGO, acpi_root_dir);
@ -136,6 +157,7 @@ static int __init acpi_system_init(void)
else {
entry->proc_fops = &acpi_system_info_ops;
}
#endif
/* 'dsdt' [R] */
name = ACPI_SYSTEM_FILE_DSDT;
@ -159,7 +181,9 @@ static int __init acpi_system_init(void)
Error:
remove_proc_entry(ACPI_SYSTEM_FILE_FADT, acpi_root_dir);
remove_proc_entry(ACPI_SYSTEM_FILE_DSDT, acpi_root_dir);
#ifdef CONFIG_ACPI_PROCFS
remove_proc_entry(ACPI_SYSTEM_FILE_INFO, acpi_root_dir);
#endif
error = -EFAULT;
goto Done;