2005-04-16 18:20:36 -04:00
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/*
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* acpi_system.c - ACPI System Driver ($Revision: 63 $)
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*
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* Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com>
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* Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
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*
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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*
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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*/
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#include <linux/proc_fs.h>
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#include <linux/seq_file.h>
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#include <linux/init.h>
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2008-07-24 00:26:44 -04:00
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#include <linux/string.h>
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2005-04-16 18:20:36 -04:00
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#include <asm/uaccess.h>
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#include <acpi/acpi_drivers.h>
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#define _COMPONENT ACPI_SYSTEM_COMPONENT
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2007-02-12 22:42:12 -05:00
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ACPI_MODULE_NAME("system");
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2007-01-28 22:02:42 -05:00
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#ifdef MODULE_PARAM_PREFIX
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#undef MODULE_PARAM_PREFIX
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#endif
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#define MODULE_PARAM_PREFIX "acpi."
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2005-04-16 18:20:36 -04:00
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#define ACPI_SYSTEM_CLASS "system"
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#define ACPI_SYSTEM_DEVICE_NAME "System"
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2008-02-06 01:26:55 -05:00
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u32 acpi_irq_handled;
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2007-01-28 22:02:42 -05:00
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/*
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* Make ACPICA version work as module param
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*/
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ACPI: Populate /sys/firmware/acpi/tables/
The file name is the signature, such as DSDT,
and the contents are the binary table image.
Some tables, such as the SSDT, can have multiple instances.
If just one, the file is SSDT, but if 3 instances,
for example, it will be SSDT1, SSDT2, SSDT3
All static tables (besides teh RSDP and RSDT themselves
are exported. Dynamic tables, such as SSDT op-regions that
are not declared in the RSDT, will be added in a subsequent patch.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-06-14 05:43:07 -04:00
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static int param_get_acpica_version(char *buffer, struct kernel_param *kp)
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{
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2007-01-28 22:02:42 -05:00
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int result;
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result = sprintf(buffer, "%x", ACPI_CA_VERSION);
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return result;
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}
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module_param_call(acpica_version, NULL, param_get_acpica_version, NULL, 0444);
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ACPI: Populate /sys/firmware/acpi/tables/
The file name is the signature, such as DSDT,
and the contents are the binary table image.
Some tables, such as the SSDT, can have multiple instances.
If just one, the file is SSDT, but if 3 instances,
for example, it will be SSDT1, SSDT2, SSDT3
All static tables (besides teh RSDP and RSDT themselves
are exported. Dynamic tables, such as SSDT op-regions that
are not declared in the RSDT, will be added in a subsequent patch.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-06-14 05:43:07 -04:00
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/* --------------------------------------------------------------------------
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FS Interface (/sys)
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-------------------------------------------------------------------------- */
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static LIST_HEAD(acpi_table_attr_list);
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2007-12-17 14:54:39 -05:00
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static struct kobject *tables_kobj;
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ACPI: Populate /sys/firmware/acpi/tables/
The file name is the signature, such as DSDT,
and the contents are the binary table image.
Some tables, such as the SSDT, can have multiple instances.
If just one, the file is SSDT, but if 3 instances,
for example, it will be SSDT1, SSDT2, SSDT3
All static tables (besides teh RSDP and RSDT themselves
are exported. Dynamic tables, such as SSDT op-regions that
are not declared in the RSDT, will be added in a subsequent patch.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-06-14 05:43:07 -04:00
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struct acpi_table_attr {
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struct bin_attribute attr;
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char name[8];
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int instance;
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struct list_head node;
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};
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static ssize_t acpi_table_show(struct kobject *kobj,
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struct bin_attribute *bin_attr, char *buf,
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loff_t offset, size_t count)
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{
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struct acpi_table_attr *table_attr =
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container_of(bin_attr, struct acpi_table_attr, attr);
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struct acpi_table_header *table_header = NULL;
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acpi_status status;
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status =
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acpi_get_table(table_attr->name, table_attr->instance,
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&table_header);
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if (ACPI_FAILURE(status))
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return -ENODEV;
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2008-06-09 19:22:26 -04:00
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return memory_read_from_buffer(buf, count, &offset,
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table_header, table_header->length);
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ACPI: Populate /sys/firmware/acpi/tables/
The file name is the signature, such as DSDT,
and the contents are the binary table image.
Some tables, such as the SSDT, can have multiple instances.
If just one, the file is SSDT, but if 3 instances,
for example, it will be SSDT1, SSDT2, SSDT3
All static tables (besides teh RSDP and RSDT themselves
are exported. Dynamic tables, such as SSDT op-regions that
are not declared in the RSDT, will be added in a subsequent patch.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-06-14 05:43:07 -04:00
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}
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static void acpi_table_attr_init(struct acpi_table_attr *table_attr,
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struct acpi_table_header *table_header)
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{
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struct acpi_table_header *header = NULL;
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struct acpi_table_attr *attr = NULL;
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memcpy(table_attr->name, table_header->signature, ACPI_NAME_SIZE);
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list_for_each_entry(attr, &acpi_table_attr_list, node) {
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if (!memcmp(table_header->signature, attr->name,
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ACPI_NAME_SIZE))
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if (table_attr->instance < attr->instance)
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table_attr->instance = attr->instance;
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}
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table_attr->instance++;
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if (table_attr->instance > 1 || (table_attr->instance == 1 &&
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!acpi_get_table(table_header->
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signature, 2,
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&header)))
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sprintf(table_attr->name + 4, "%d", table_attr->instance);
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table_attr->attr.size = 0;
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table_attr->attr.read = acpi_table_show;
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table_attr->attr.attr.name = table_attr->name;
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table_attr->attr.attr.mode = 0444;
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table_attr->attr.attr.owner = THIS_MODULE;
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return;
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}
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static int acpi_system_sysfs_init(void)
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{
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struct acpi_table_attr *table_attr;
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struct acpi_table_header *table_header = NULL;
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int table_index = 0;
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int result;
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2007-12-17 14:54:39 -05:00
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tables_kobj = kobject_create_and_add("tables", acpi_kobj);
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if (!tables_kobj)
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return -ENOMEM;
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ACPI: Populate /sys/firmware/acpi/tables/
The file name is the signature, such as DSDT,
and the contents are the binary table image.
Some tables, such as the SSDT, can have multiple instances.
If just one, the file is SSDT, but if 3 instances,
for example, it will be SSDT1, SSDT2, SSDT3
All static tables (besides teh RSDP and RSDT themselves
are exported. Dynamic tables, such as SSDT op-regions that
are not declared in the RSDT, will be added in a subsequent patch.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-06-14 05:43:07 -04:00
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do {
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result = acpi_get_table_by_index(table_index, &table_header);
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if (!result) {
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table_index++;
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table_attr = NULL;
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table_attr =
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kzalloc(sizeof(struct acpi_table_attr), GFP_KERNEL);
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if (!table_attr)
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return -ENOMEM;
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acpi_table_attr_init(table_attr, table_header);
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result =
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2007-12-17 14:54:39 -05:00
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sysfs_create_bin_file(tables_kobj,
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ACPI: Populate /sys/firmware/acpi/tables/
The file name is the signature, such as DSDT,
and the contents are the binary table image.
Some tables, such as the SSDT, can have multiple instances.
If just one, the file is SSDT, but if 3 instances,
for example, it will be SSDT1, SSDT2, SSDT3
All static tables (besides teh RSDP and RSDT themselves
are exported. Dynamic tables, such as SSDT op-regions that
are not declared in the RSDT, will be added in a subsequent patch.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-06-14 05:43:07 -04:00
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&table_attr->attr);
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if (result) {
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kfree(table_attr);
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return result;
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} else
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list_add_tail(&table_attr->node,
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&acpi_table_attr_list);
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}
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} while (!result);
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2007-12-17 14:54:39 -05:00
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kobject_uevent(tables_kobj, KOBJ_ADD);
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ACPI: Populate /sys/firmware/acpi/tables/
The file name is the signature, such as DSDT,
and the contents are the binary table image.
Some tables, such as the SSDT, can have multiple instances.
If just one, the file is SSDT, but if 3 instances,
for example, it will be SSDT1, SSDT2, SSDT3
All static tables (besides teh RSDP and RSDT themselves
are exported. Dynamic tables, such as SSDT op-regions that
are not declared in the RSDT, will be added in a subsequent patch.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-06-14 05:43:07 -04:00
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return 0;
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}
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2008-02-06 01:26:55 -05:00
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/*
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* Detailed ACPI IRQ counters in /sys/firmware/acpi/interrupts/
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* See Documentation/ABI/testing/sysfs-firmware-acpi
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*/
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#define COUNT_GPE 0
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#define COUNT_SCI 1 /* acpi_irq_handled */
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#define COUNT_ERROR 2 /* other */
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#define NUM_COUNTERS_EXTRA 3
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2008-06-19 21:42:47 -04:00
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#define ACPI_EVENT_VALID 0x01
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struct event_counter {
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u32 count;
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u32 flags;
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};
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static struct event_counter *all_counters;
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2008-02-06 01:26:55 -05:00
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static u32 num_gpes;
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static u32 num_counters;
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static struct attribute **all_attrs;
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static u32 acpi_gpe_count;
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static struct attribute_group interrupt_stats_attr_group = {
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.name = "interrupts",
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};
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static struct kobj_attribute *counter_attrs;
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static int count_num_gpes(void)
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{
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int count = 0;
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struct acpi_gpe_xrupt_info *gpe_xrupt_info;
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struct acpi_gpe_block_info *gpe_block;
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acpi_cpu_flags flags;
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flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
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gpe_xrupt_info = acpi_gbl_gpe_xrupt_list_head;
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while (gpe_xrupt_info) {
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gpe_block = gpe_xrupt_info->gpe_block_list_head;
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while (gpe_block) {
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count += gpe_block->register_count *
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ACPI_GPE_REGISTER_WIDTH;
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gpe_block = gpe_block->next;
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}
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gpe_xrupt_info = gpe_xrupt_info->next;
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}
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acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
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return count;
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}
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2008-06-19 21:42:47 -04:00
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static int get_gpe_device(int index, acpi_handle *handle)
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{
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struct acpi_gpe_xrupt_info *gpe_xrupt_info;
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struct acpi_gpe_block_info *gpe_block;
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acpi_cpu_flags flags;
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struct acpi_namespace_node *node;
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flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
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gpe_xrupt_info = acpi_gbl_gpe_xrupt_list_head;
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while (gpe_xrupt_info) {
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gpe_block = gpe_xrupt_info->gpe_block_list_head;
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node = gpe_block->node;
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while (gpe_block) {
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index -= gpe_block->register_count *
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ACPI_GPE_REGISTER_WIDTH;
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if (index < 0) {
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acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
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/* return NULL if it's FADT GPE */
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if (node->type != ACPI_TYPE_DEVICE)
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*handle = NULL;
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else
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*handle = node;
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return 0;
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}
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node = gpe_block->node;
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gpe_block = gpe_block->next;
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}
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gpe_xrupt_info = gpe_xrupt_info->next;
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}
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acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
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return -ENODEV;
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}
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2008-02-06 01:26:55 -05:00
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static void delete_gpe_attr_array(void)
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{
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2008-06-19 21:42:47 -04:00
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struct event_counter *tmp = all_counters;
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2008-02-06 01:26:55 -05:00
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all_counters = NULL;
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kfree(tmp);
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if (counter_attrs) {
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int i;
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for (i = 0; i < num_gpes; i++)
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kfree(counter_attrs[i].attr.name);
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kfree(counter_attrs);
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}
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kfree(all_attrs);
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return;
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}
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void acpi_os_gpe_count(u32 gpe_number)
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{
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acpi_gpe_count++;
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if (!all_counters)
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return;
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if (gpe_number < num_gpes)
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2008-06-19 21:42:47 -04:00
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all_counters[gpe_number].count++;
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2008-02-06 01:26:55 -05:00
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else
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2008-06-19 21:42:47 -04:00
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all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_ERROR].
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count++;
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2008-02-06 01:26:55 -05:00
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return;
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}
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void acpi_os_fixed_event_count(u32 event_number)
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{
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if (!all_counters)
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return;
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if (event_number < ACPI_NUM_FIXED_EVENTS)
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2008-06-19 21:42:47 -04:00
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all_counters[num_gpes + event_number].count++;
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2008-02-06 01:26:55 -05:00
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else
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2008-06-19 21:42:47 -04:00
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all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_ERROR].
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count++;
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2008-02-06 01:26:55 -05:00
|
|
|
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2008-06-19 21:42:47 -04:00
|
|
|
static int get_status(u32 index, acpi_event_status *status, acpi_handle *handle)
|
|
|
|
{
|
|
|
|
int result = 0;
|
|
|
|
|
|
|
|
if (index >= num_gpes + ACPI_NUM_FIXED_EVENTS)
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
if (index < num_gpes) {
|
|
|
|
result = get_gpe_device(index, handle);
|
|
|
|
if (result) {
|
|
|
|
ACPI_EXCEPTION((AE_INFO, AE_NOT_FOUND,
|
|
|
|
"Invalid GPE 0x%x\n", index));
|
|
|
|
goto end;
|
|
|
|
}
|
|
|
|
result = acpi_get_gpe_status(*handle, index,
|
|
|
|
ACPI_NOT_ISR, status);
|
|
|
|
} else if (index < (num_gpes + ACPI_NUM_FIXED_EVENTS))
|
|
|
|
result = acpi_get_event_status(index - num_gpes, status);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* sleep/power button GPE/Fixed Event is enabled after acpi_system_init,
|
|
|
|
* check the status at runtime and mark it as valid once it's enabled
|
|
|
|
*/
|
|
|
|
if (!result && (*status & ACPI_EVENT_FLAG_ENABLED))
|
|
|
|
all_counters[index].flags |= ACPI_EVENT_VALID;
|
|
|
|
end:
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
2008-02-06 01:26:55 -05:00
|
|
|
static ssize_t counter_show(struct kobject *kobj,
|
|
|
|
struct kobj_attribute *attr, char *buf)
|
|
|
|
{
|
2008-06-19 21:42:47 -04:00
|
|
|
int index = attr - counter_attrs;
|
|
|
|
int size;
|
|
|
|
acpi_handle handle;
|
|
|
|
acpi_event_status status;
|
|
|
|
int result = 0;
|
|
|
|
|
|
|
|
all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI].count =
|
2008-02-06 01:26:55 -05:00
|
|
|
acpi_irq_handled;
|
2008-06-19 21:42:47 -04:00
|
|
|
all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_GPE].count =
|
2008-02-06 01:26:55 -05:00
|
|
|
acpi_gpe_count;
|
|
|
|
|
2008-06-19 21:42:47 -04:00
|
|
|
size = sprintf(buf, "%8d", all_counters[index].count);
|
|
|
|
|
|
|
|
/* "gpe_all" or "sci" */
|
|
|
|
if (index >= num_gpes + ACPI_NUM_FIXED_EVENTS)
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
result = get_status(index, &status, &handle);
|
|
|
|
if (result)
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
if (!(all_counters[index].flags & ACPI_EVENT_VALID))
|
|
|
|
size += sprintf(buf + size, " invalid");
|
|
|
|
else if (status & ACPI_EVENT_FLAG_ENABLED)
|
|
|
|
size += sprintf(buf + size, " enable");
|
|
|
|
else
|
|
|
|
size += sprintf(buf + size, " disable");
|
|
|
|
|
|
|
|
end:
|
|
|
|
size += sprintf(buf + size, "\n");
|
|
|
|
return result ? result : size;
|
2008-02-06 01:26:55 -05:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* counter_set() sets the specified counter.
|
|
|
|
* setting the total "sci" file to any value clears all counters.
|
2008-06-19 21:42:47 -04:00
|
|
|
* enable/disable/clear a gpe/fixed event in user space.
|
2008-02-06 01:26:55 -05:00
|
|
|
*/
|
|
|
|
static ssize_t counter_set(struct kobject *kobj,
|
|
|
|
struct kobj_attribute *attr, const char *buf, size_t size)
|
|
|
|
{
|
|
|
|
int index = attr - counter_attrs;
|
2008-06-19 21:42:47 -04:00
|
|
|
acpi_event_status status;
|
|
|
|
acpi_handle handle;
|
|
|
|
int result = 0;
|
2008-02-06 01:26:55 -05:00
|
|
|
|
|
|
|
if (index == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI) {
|
|
|
|
int i;
|
|
|
|
for (i = 0; i < num_counters; ++i)
|
2008-06-19 21:42:47 -04:00
|
|
|
all_counters[i].count = 0;
|
2008-02-06 01:26:55 -05:00
|
|
|
acpi_gpe_count = 0;
|
|
|
|
acpi_irq_handled = 0;
|
2008-06-19 21:42:47 -04:00
|
|
|
goto end;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* show the event status for both GPEs and Fixed Events */
|
|
|
|
result = get_status(index, &status, &handle);
|
|
|
|
if (result)
|
|
|
|
goto end;
|
|
|
|
|
|
|
|
if (!(all_counters[index].flags & ACPI_EVENT_VALID)) {
|
|
|
|
ACPI_DEBUG_PRINT((ACPI_DB_WARN,
|
|
|
|
"Can not change Invalid GPE/Fixed Event status\n"));
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
2008-02-06 01:26:55 -05:00
|
|
|
|
2008-06-19 21:42:47 -04:00
|
|
|
if (index < num_gpes) {
|
|
|
|
if (!strcmp(buf, "disable\n") &&
|
|
|
|
(status & ACPI_EVENT_FLAG_ENABLED))
|
|
|
|
result = acpi_disable_gpe(handle, index, ACPI_NOT_ISR);
|
|
|
|
else if (!strcmp(buf, "enable\n") &&
|
|
|
|
!(status & ACPI_EVENT_FLAG_ENABLED))
|
|
|
|
result = acpi_enable_gpe(handle, index, ACPI_NOT_ISR);
|
|
|
|
else if (!strcmp(buf, "clear\n") &&
|
|
|
|
(status & ACPI_EVENT_FLAG_SET))
|
|
|
|
result = acpi_clear_gpe(handle, index, ACPI_NOT_ISR);
|
|
|
|
else
|
|
|
|
all_counters[index].count = strtoul(buf, NULL, 0);
|
|
|
|
} else if (index < num_gpes + ACPI_NUM_FIXED_EVENTS) {
|
|
|
|
int event = index - num_gpes;
|
|
|
|
if (!strcmp(buf, "disable\n") &&
|
|
|
|
(status & ACPI_EVENT_FLAG_ENABLED))
|
|
|
|
result = acpi_disable_event(event, ACPI_NOT_ISR);
|
|
|
|
else if (!strcmp(buf, "enable\n") &&
|
|
|
|
!(status & ACPI_EVENT_FLAG_ENABLED))
|
|
|
|
result = acpi_enable_event(event, ACPI_NOT_ISR);
|
|
|
|
else if (!strcmp(buf, "clear\n") &&
|
|
|
|
(status & ACPI_EVENT_FLAG_SET))
|
|
|
|
result = acpi_clear_event(event);
|
|
|
|
else
|
|
|
|
all_counters[index].count = strtoul(buf, NULL, 0);
|
2008-02-06 01:26:55 -05:00
|
|
|
} else
|
2008-06-19 21:42:47 -04:00
|
|
|
all_counters[index].count = strtoul(buf, NULL, 0);
|
2008-02-06 01:26:55 -05:00
|
|
|
|
2008-06-19 21:42:47 -04:00
|
|
|
if (ACPI_FAILURE(result))
|
|
|
|
result = -EINVAL;
|
|
|
|
end:
|
|
|
|
return result ? result : size;
|
2008-02-06 01:26:55 -05:00
|
|
|
}
|
|
|
|
|
|
|
|
void acpi_irq_stats_init(void)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
|
|
|
if (all_counters)
|
|
|
|
return;
|
|
|
|
|
|
|
|
num_gpes = count_num_gpes();
|
|
|
|
num_counters = num_gpes + ACPI_NUM_FIXED_EVENTS + NUM_COUNTERS_EXTRA;
|
|
|
|
|
|
|
|
all_attrs = kzalloc(sizeof(struct attribute *) * (num_counters + 1),
|
|
|
|
GFP_KERNEL);
|
|
|
|
if (all_attrs == NULL)
|
|
|
|
return;
|
|
|
|
|
2008-06-19 21:42:47 -04:00
|
|
|
all_counters = kzalloc(sizeof(struct event_counter) * (num_counters),
|
|
|
|
GFP_KERNEL);
|
2008-02-06 01:26:55 -05:00
|
|
|
if (all_counters == NULL)
|
|
|
|
goto fail;
|
|
|
|
|
|
|
|
counter_attrs = kzalloc(sizeof(struct kobj_attribute) * (num_counters),
|
|
|
|
GFP_KERNEL);
|
|
|
|
if (counter_attrs == NULL)
|
|
|
|
goto fail;
|
|
|
|
|
|
|
|
for (i = 0; i < num_counters; ++i) {
|
2008-03-11 11:44:26 -04:00
|
|
|
char buffer[12];
|
2008-02-06 01:26:55 -05:00
|
|
|
char *name;
|
|
|
|
|
|
|
|
if (i < num_gpes)
|
|
|
|
sprintf(buffer, "gpe%02X", i);
|
|
|
|
else if (i == num_gpes + ACPI_EVENT_PMTIMER)
|
|
|
|
sprintf(buffer, "ff_pmtimer");
|
|
|
|
else if (i == num_gpes + ACPI_EVENT_GLOBAL)
|
|
|
|
sprintf(buffer, "ff_gbl_lock");
|
|
|
|
else if (i == num_gpes + ACPI_EVENT_POWER_BUTTON)
|
|
|
|
sprintf(buffer, "ff_pwr_btn");
|
|
|
|
else if (i == num_gpes + ACPI_EVENT_SLEEP_BUTTON)
|
|
|
|
sprintf(buffer, "ff_slp_btn");
|
|
|
|
else if (i == num_gpes + ACPI_EVENT_RTC)
|
|
|
|
sprintf(buffer, "ff_rt_clk");
|
|
|
|
else if (i == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_GPE)
|
|
|
|
sprintf(buffer, "gpe_all");
|
|
|
|
else if (i == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI)
|
|
|
|
sprintf(buffer, "sci");
|
|
|
|
else if (i == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_ERROR)
|
|
|
|
sprintf(buffer, "error");
|
|
|
|
else
|
|
|
|
sprintf(buffer, "bug%02X", i);
|
|
|
|
|
|
|
|
name = kzalloc(strlen(buffer) + 1, GFP_KERNEL);
|
|
|
|
if (name == NULL)
|
|
|
|
goto fail;
|
|
|
|
strncpy(name, buffer, strlen(buffer) + 1);
|
|
|
|
|
|
|
|
counter_attrs[i].attr.name = name;
|
|
|
|
counter_attrs[i].attr.mode = 0644;
|
|
|
|
counter_attrs[i].show = counter_show;
|
|
|
|
counter_attrs[i].store = counter_set;
|
|
|
|
|
|
|
|
all_attrs[i] = &counter_attrs[i].attr;
|
|
|
|
}
|
|
|
|
|
|
|
|
interrupt_stats_attr_group.attrs = all_attrs;
|
2008-02-07 04:24:01 -05:00
|
|
|
if (!sysfs_create_group(acpi_kobj, &interrupt_stats_attr_group))
|
|
|
|
return;
|
2008-02-06 01:26:55 -05:00
|
|
|
|
|
|
|
fail:
|
|
|
|
delete_gpe_attr_array();
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void __exit interrupt_stats_exit(void)
|
|
|
|
{
|
|
|
|
sysfs_remove_group(acpi_kobj, &interrupt_stats_attr_group);
|
|
|
|
|
|
|
|
delete_gpe_attr_array();
|
|
|
|
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2005-04-16 18:20:36 -04:00
|
|
|
/* --------------------------------------------------------------------------
|
|
|
|
FS Interface (/proc)
|
|
|
|
-------------------------------------------------------------------------- */
|
2007-01-28 22:02:42 -05:00
|
|
|
#ifdef CONFIG_ACPI_PROCFS
|
ACPI: Populate /sys/firmware/acpi/tables/
The file name is the signature, such as DSDT,
and the contents are the binary table image.
Some tables, such as the SSDT, can have multiple instances.
If just one, the file is SSDT, but if 3 instances,
for example, it will be SSDT1, SSDT2, SSDT3
All static tables (besides teh RSDP and RSDT themselves
are exported. Dynamic tables, such as SSDT op-regions that
are not declared in the RSDT, will be added in a subsequent patch.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-06-14 05:43:07 -04:00
|
|
|
#define ACPI_SYSTEM_FILE_INFO "info"
|
|
|
|
#define ACPI_SYSTEM_FILE_EVENT "event"
|
|
|
|
#define ACPI_SYSTEM_FILE_DSDT "dsdt"
|
|
|
|
#define ACPI_SYSTEM_FILE_FADT "fadt"
|
2005-04-16 18:20:36 -04:00
|
|
|
|
2005-08-05 00:44:28 -04:00
|
|
|
static int acpi_system_read_info(struct seq_file *seq, void *offset)
|
2005-04-16 18:20:36 -04:00
|
|
|
{
|
|
|
|
|
|
|
|
seq_printf(seq, "version: %x\n", ACPI_CA_VERSION);
|
2006-06-27 00:41:40 -04:00
|
|
|
return 0;
|
2005-04-16 18:20:36 -04:00
|
|
|
}
|
|
|
|
|
|
|
|
static int acpi_system_info_open_fs(struct inode *inode, struct file *file)
|
|
|
|
{
|
|
|
|
return single_open(file, acpi_system_read_info, PDE(inode)->data);
|
|
|
|
}
|
|
|
|
|
2006-07-04 13:06:00 -04:00
|
|
|
static const struct file_operations acpi_system_info_ops = {
|
2008-04-29 04:02:27 -04:00
|
|
|
.owner = THIS_MODULE,
|
2005-08-05 00:44:28 -04:00
|
|
|
.open = acpi_system_info_open_fs,
|
|
|
|
.read = seq_read,
|
|
|
|
.llseek = seq_lseek,
|
|
|
|
.release = single_release,
|
2005-04-16 18:20:36 -04:00
|
|
|
};
|
|
|
|
|
2005-08-05 00:44:28 -04:00
|
|
|
static ssize_t acpi_system_read_dsdt(struct file *, char __user *, size_t,
|
|
|
|
loff_t *);
|
2005-04-16 18:20:36 -04:00
|
|
|
|
2006-07-04 13:06:00 -04:00
|
|
|
static const struct file_operations acpi_system_dsdt_ops = {
|
2008-04-29 04:02:27 -04:00
|
|
|
.owner = THIS_MODULE,
|
2005-08-05 00:44:28 -04:00
|
|
|
.read = acpi_system_read_dsdt,
|
2005-04-16 18:20:36 -04:00
|
|
|
};
|
|
|
|
|
|
|
|
static ssize_t
|
2005-08-05 00:44:28 -04:00
|
|
|
acpi_system_read_dsdt(struct file *file,
|
|
|
|
char __user * buffer, size_t count, loff_t * ppos)
|
2005-04-16 18:20:36 -04:00
|
|
|
{
|
2005-08-05 00:44:28 -04:00
|
|
|
acpi_status status = AE_OK;
|
2007-02-02 11:48:19 -05:00
|
|
|
struct acpi_table_header *dsdt = NULL;
|
2005-08-05 00:44:28 -04:00
|
|
|
ssize_t res;
|
2005-04-16 18:20:36 -04:00
|
|
|
|
2007-02-02 11:48:19 -05:00
|
|
|
status = acpi_get_table(ACPI_SIG_DSDT, 1, &dsdt);
|
2005-04-16 18:20:36 -04:00
|
|
|
if (ACPI_FAILURE(status))
|
2006-06-27 00:41:40 -04:00
|
|
|
return -ENODEV;
|
2005-04-16 18:20:36 -04:00
|
|
|
|
ACPI: Populate /sys/firmware/acpi/tables/
The file name is the signature, such as DSDT,
and the contents are the binary table image.
Some tables, such as the SSDT, can have multiple instances.
If just one, the file is SSDT, but if 3 instances,
for example, it will be SSDT1, SSDT2, SSDT3
All static tables (besides teh RSDP and RSDT themselves
are exported. Dynamic tables, such as SSDT op-regions that
are not declared in the RSDT, will be added in a subsequent patch.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-06-14 05:43:07 -04:00
|
|
|
res = simple_read_from_buffer(buffer, count, ppos, dsdt, dsdt->length);
|
2005-04-16 18:20:36 -04:00
|
|
|
|
2006-06-27 00:41:40 -04:00
|
|
|
return res;
|
2005-04-16 18:20:36 -04:00
|
|
|
}
|
|
|
|
|
2005-08-05 00:44:28 -04:00
|
|
|
static ssize_t acpi_system_read_fadt(struct file *, char __user *, size_t,
|
|
|
|
loff_t *);
|
2005-04-16 18:20:36 -04:00
|
|
|
|
2006-07-04 13:06:00 -04:00
|
|
|
static const struct file_operations acpi_system_fadt_ops = {
|
2008-04-29 04:02:27 -04:00
|
|
|
.owner = THIS_MODULE,
|
2005-08-05 00:44:28 -04:00
|
|
|
.read = acpi_system_read_fadt,
|
2005-04-16 18:20:36 -04:00
|
|
|
};
|
|
|
|
|
|
|
|
static ssize_t
|
2005-08-05 00:44:28 -04:00
|
|
|
acpi_system_read_fadt(struct file *file,
|
|
|
|
char __user * buffer, size_t count, loff_t * ppos)
|
2005-04-16 18:20:36 -04:00
|
|
|
{
|
2005-08-05 00:44:28 -04:00
|
|
|
acpi_status status = AE_OK;
|
2007-02-02 11:48:19 -05:00
|
|
|
struct acpi_table_header *fadt = NULL;
|
2005-08-05 00:44:28 -04:00
|
|
|
ssize_t res;
|
2005-04-16 18:20:36 -04:00
|
|
|
|
2007-02-02 11:48:19 -05:00
|
|
|
status = acpi_get_table(ACPI_SIG_FADT, 1, &fadt);
|
2005-04-16 18:20:36 -04:00
|
|
|
if (ACPI_FAILURE(status))
|
2006-06-27 00:41:40 -04:00
|
|
|
return -ENODEV;
|
2005-04-16 18:20:36 -04:00
|
|
|
|
ACPI: Populate /sys/firmware/acpi/tables/
The file name is the signature, such as DSDT,
and the contents are the binary table image.
Some tables, such as the SSDT, can have multiple instances.
If just one, the file is SSDT, but if 3 instances,
for example, it will be SSDT1, SSDT2, SSDT3
All static tables (besides teh RSDP and RSDT themselves
are exported. Dynamic tables, such as SSDT op-regions that
are not declared in the RSDT, will be added in a subsequent patch.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-06-14 05:43:07 -04:00
|
|
|
res = simple_read_from_buffer(buffer, count, ppos, fadt, fadt->length);
|
2005-04-16 18:20:36 -04:00
|
|
|
|
2006-06-27 00:41:40 -04:00
|
|
|
return res;
|
2005-04-16 18:20:36 -04:00
|
|
|
}
|
|
|
|
|
ACPI: Populate /sys/firmware/acpi/tables/
The file name is the signature, such as DSDT,
and the contents are the binary table image.
Some tables, such as the SSDT, can have multiple instances.
If just one, the file is SSDT, but if 3 instances,
for example, it will be SSDT1, SSDT2, SSDT3
All static tables (besides teh RSDP and RSDT themselves
are exported. Dynamic tables, such as SSDT op-regions that
are not declared in the RSDT, will be added in a subsequent patch.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-06-14 05:43:07 -04:00
|
|
|
static int acpi_system_procfs_init(void)
|
2005-04-16 18:20:36 -04:00
|
|
|
{
|
2005-08-05 00:44:28 -04:00
|
|
|
struct proc_dir_entry *entry;
|
2005-04-16 18:20:36 -04:00
|
|
|
int error = 0;
|
|
|
|
|
|
|
|
/* 'info' [R] */
|
2008-04-29 04:02:27 -04:00
|
|
|
entry = proc_create(ACPI_SYSTEM_FILE_INFO, S_IRUGO, acpi_root_dir,
|
|
|
|
&acpi_system_info_ops);
|
2005-04-16 18:20:36 -04:00
|
|
|
if (!entry)
|
|
|
|
goto Error;
|
|
|
|
|
|
|
|
/* 'dsdt' [R] */
|
2008-04-29 04:02:27 -04:00
|
|
|
entry = proc_create(ACPI_SYSTEM_FILE_DSDT, S_IRUSR, acpi_root_dir,
|
|
|
|
&acpi_system_dsdt_ops);
|
|
|
|
if (!entry)
|
2005-04-16 18:20:36 -04:00
|
|
|
goto Error;
|
|
|
|
|
|
|
|
/* 'fadt' [R] */
|
2008-04-29 04:02:27 -04:00
|
|
|
entry = proc_create(ACPI_SYSTEM_FILE_FADT, S_IRUSR, acpi_root_dir,
|
|
|
|
&acpi_system_fadt_ops);
|
|
|
|
if (!entry)
|
2005-04-16 18:20:36 -04:00
|
|
|
goto Error;
|
|
|
|
|
2005-08-05 00:44:28 -04:00
|
|
|
Done:
|
2006-06-27 00:41:40 -04:00
|
|
|
return error;
|
2005-04-16 18:20:36 -04:00
|
|
|
|
2005-08-05 00:44:28 -04:00
|
|
|
Error:
|
2005-04-16 18:20:36 -04:00
|
|
|
remove_proc_entry(ACPI_SYSTEM_FILE_FADT, acpi_root_dir);
|
|
|
|
remove_proc_entry(ACPI_SYSTEM_FILE_DSDT, acpi_root_dir);
|
|
|
|
remove_proc_entry(ACPI_SYSTEM_FILE_INFO, acpi_root_dir);
|
|
|
|
|
|
|
|
error = -EFAULT;
|
|
|
|
goto Done;
|
|
|
|
}
|
ACPI: Populate /sys/firmware/acpi/tables/
The file name is the signature, such as DSDT,
and the contents are the binary table image.
Some tables, such as the SSDT, can have multiple instances.
If just one, the file is SSDT, but if 3 instances,
for example, it will be SSDT1, SSDT2, SSDT3
All static tables (besides teh RSDP and RSDT themselves
are exported. Dynamic tables, such as SSDT op-regions that
are not declared in the RSDT, will be added in a subsequent patch.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-06-14 05:43:07 -04:00
|
|
|
#else
|
|
|
|
static int acpi_system_procfs_init(void)
|
|
|
|
{
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
static int __init acpi_system_init(void)
|
|
|
|
{
|
|
|
|
int result = 0;
|
|
|
|
|
|
|
|
if (acpi_disabled)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
result = acpi_system_procfs_init();
|
|
|
|
if (result)
|
|
|
|
return result;
|
|
|
|
|
|
|
|
result = acpi_system_sysfs_init();
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
2005-04-16 18:20:36 -04:00
|
|
|
|
|
|
|
subsys_initcall(acpi_system_init);
|