2005-04-16 16:20:36 -06:00
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/*
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* acpi_ac.c - ACPI AC Adapter Driver ($Revision: 27 $)
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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/kernel.h>
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#include <linux/module.h>
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include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.
percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.
http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.
* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.
* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.
The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.
2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.
3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.
4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.
5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.
6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).
* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig
8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.
Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-24 02:04:11 -06:00
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#include <linux/slab.h>
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2005-04-16 16:20:36 -06:00
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#include <linux/init.h>
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#include <linux/types.h>
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2013-05-08 01:28:46 -06:00
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#include <linux/dmi.h>
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#include <linux/delay.h>
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2013-09-25 06:39:45 -06:00
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#include <linux/platform_device.h>
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2007-09-26 09:44:06 -06:00
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#include <linux/power_supply.h>
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2005-04-16 16:20:36 -06:00
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#include <acpi/acpi_bus.h>
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#include <acpi/acpi_drivers.h>
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2009-07-28 14:45:54 -06:00
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#define PREFIX "ACPI: "
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2005-04-16 16:20:36 -06:00
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#define ACPI_AC_CLASS "ac_adapter"
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#define ACPI_AC_DEVICE_NAME "AC Adapter"
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#define ACPI_AC_FILE_STATE "state"
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#define ACPI_AC_NOTIFY_STATUS 0x80
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#define ACPI_AC_STATUS_OFFLINE 0x00
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#define ACPI_AC_STATUS_ONLINE 0x01
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#define ACPI_AC_STATUS_UNKNOWN 0xFF
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#define _COMPONENT ACPI_AC_COMPONENT
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2007-02-12 20:42:12 -07:00
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ACPI_MODULE_NAME("ac");
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2005-04-16 16:20:36 -06:00
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2007-02-12 20:42:12 -07:00
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MODULE_AUTHOR("Paul Diefenbaugh");
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2007-02-12 21:50:02 -07:00
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MODULE_DESCRIPTION("ACPI AC Adapter Driver");
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2005-04-16 16:20:36 -06:00
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MODULE_LICENSE("GPL");
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2013-05-08 01:28:46 -06:00
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static int ac_sleep_before_get_state_ms;
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2005-04-16 16:20:36 -06:00
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struct acpi_ac {
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2007-09-26 09:44:06 -06:00
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struct power_supply charger;
|
2013-09-25 06:39:45 -06:00
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struct platform_device *pdev;
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2008-10-10 00:22:59 -06:00
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unsigned long long state;
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2005-04-16 16:20:36 -06:00
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};
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2011-07-14 06:07:13 -06:00
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#define to_acpi_ac(x) container_of(x, struct acpi_ac, charger)
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2007-09-26 09:44:06 -06:00
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2005-04-16 16:20:36 -06:00
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/* --------------------------------------------------------------------------
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AC Adapter Management
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-------------------------------------------------------------------------- */
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2005-08-04 22:44:28 -06:00
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static int acpi_ac_get_state(struct acpi_ac *ac)
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2005-04-16 16:20:36 -06:00
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{
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2013-09-25 06:39:45 -06:00
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acpi_status status;
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2013-11-12 20:27:42 -07:00
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acpi_handle handle = ACPI_HANDLE(&ac->pdev->dev);
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2005-04-16 16:20:36 -06:00
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2013-11-12 20:27:42 -07:00
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status = acpi_evaluate_integer(handle, "_PSR", NULL,
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2013-09-25 06:39:45 -06:00
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&ac->state);
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2005-04-16 16:20:36 -06:00
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if (ACPI_FAILURE(status)) {
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2013-09-25 06:39:45 -06:00
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ACPI_EXCEPTION((AE_INFO, status,
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"Error reading AC Adapter state"));
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2005-04-16 16:20:36 -06:00
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ac->state = ACPI_AC_STATUS_UNKNOWN;
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2006-06-26 22:41:40 -06:00
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return -ENODEV;
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2005-04-16 16:20:36 -06:00
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}
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2005-08-04 22:44:28 -06:00
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2006-06-26 22:41:40 -06:00
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return 0;
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2005-04-16 16:20:36 -06:00
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}
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2010-12-07 19:40:45 -07:00
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/* --------------------------------------------------------------------------
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sysfs I/F
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-------------------------------------------------------------------------- */
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static int get_ac_property(struct power_supply *psy,
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enum power_supply_property psp,
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union power_supply_propval *val)
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{
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struct acpi_ac *ac = to_acpi_ac(psy);
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if (!ac)
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return -ENODEV;
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if (acpi_ac_get_state(ac))
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return -ENODEV;
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switch (psp) {
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case POWER_SUPPLY_PROP_ONLINE:
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val->intval = ac->state;
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break;
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default:
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return -EINVAL;
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}
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return 0;
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}
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static enum power_supply_property ac_props[] = {
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POWER_SUPPLY_PROP_ONLINE,
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};
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2005-04-16 16:20:36 -06:00
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/* --------------------------------------------------------------------------
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Driver Model
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-------------------------------------------------------------------------- */
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2013-09-25 06:39:45 -06:00
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static void acpi_ac_notify_handler(acpi_handle handle, u32 event, void *data)
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2005-04-16 16:20:36 -06:00
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{
|
2013-09-25 06:39:45 -06:00
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struct acpi_ac *ac = data;
|
2013-11-12 20:27:42 -07:00
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struct acpi_device *adev;
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2005-04-16 16:20:36 -06:00
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if (!ac)
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2006-06-26 22:41:40 -06:00
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return;
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2005-04-16 16:20:36 -06:00
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switch (event) {
|
2008-06-13 23:26:37 -06:00
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default:
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ACPI_DEBUG_PRINT((ACPI_DB_INFO,
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"Unsupported event [0x%x]\n", event));
|
2005-04-16 16:20:36 -06:00
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case ACPI_AC_NOTIFY_STATUS:
|
2004-08-18 23:26:00 -06:00
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case ACPI_NOTIFY_BUS_CHECK:
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case ACPI_NOTIFY_DEVICE_CHECK:
|
2013-05-08 01:28:46 -06:00
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/*
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* A buggy BIOS may notify AC first and then sleep for
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* a specific time before doing actual operations in the
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* EC event handler (_Qxx). This will cause the AC state
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* reported by the ACPI event to be incorrect, so wait for a
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* specific time for the EC event handler to make progress.
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*/
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if (ac_sleep_before_get_state_ms > 0)
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msleep(ac_sleep_before_get_state_ms);
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2005-04-16 16:20:36 -06:00
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acpi_ac_get_state(ac);
|
2013-11-12 20:27:42 -07:00
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adev = ACPI_COMPANION(&ac->pdev->dev);
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acpi_bus_generate_netlink_event(adev->pnp.device_class,
|
2013-09-25 06:39:45 -06:00
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dev_name(&ac->pdev->dev),
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event, (u32) ac->state);
|
2013-11-12 20:27:42 -07:00
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acpi_notifier_call_chain(adev, event, (u32) ac->state);
|
2007-09-26 09:44:06 -06:00
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kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE);
|
2005-04-16 16:20:36 -06:00
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}
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|
2006-06-26 22:41:40 -06:00
|
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|
return;
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
|
|
|
|
2013-05-08 01:28:46 -06:00
|
|
|
static int thinkpad_e530_quirk(const struct dmi_system_id *d)
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|
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{
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|
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|
ac_sleep_before_get_state_ms = 1000;
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|
return 0;
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|
}
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|
static struct dmi_system_id ac_dmi_table[] = {
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|
|
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{
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.callback = thinkpad_e530_quirk,
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.ident = "thinkpad e530",
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.matches = {
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|
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DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
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DMI_MATCH(DMI_PRODUCT_NAME, "32597CG"),
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|
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},
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},
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{},
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};
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|
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|
2013-09-25 06:39:45 -06:00
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static int acpi_ac_probe(struct platform_device *pdev)
|
2005-04-16 16:20:36 -06:00
|
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{
|
2005-08-04 22:44:28 -06:00
|
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int result = 0;
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|
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struct acpi_ac *ac = NULL;
|
2013-09-25 06:39:45 -06:00
|
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struct acpi_device *adev;
|
2005-04-16 16:20:36 -06:00
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|
2013-09-25 06:39:45 -06:00
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if (!pdev)
|
2006-06-26 22:41:40 -06:00
|
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return -EINVAL;
|
2005-04-16 16:20:36 -06:00
|
|
|
|
2013-11-12 20:27:42 -07:00
|
|
|
adev = ACPI_COMPANION(&pdev->dev);
|
|
|
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if (!adev)
|
2013-09-25 06:39:45 -06:00
|
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|
return -ENODEV;
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|
|
|
|
2006-12-19 13:56:11 -07:00
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|
ac = kzalloc(sizeof(struct acpi_ac), GFP_KERNEL);
|
2005-04-16 16:20:36 -06:00
|
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if (!ac)
|
2006-06-26 22:41:40 -06:00
|
|
|
return -ENOMEM;
|
2005-04-16 16:20:36 -06:00
|
|
|
|
2013-09-25 06:39:45 -06:00
|
|
|
strcpy(acpi_device_name(adev), ACPI_AC_DEVICE_NAME);
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|
|
|
strcpy(acpi_device_class(adev), ACPI_AC_CLASS);
|
|
|
|
ac->pdev = pdev;
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|
|
|
platform_set_drvdata(pdev, ac);
|
2005-04-16 16:20:36 -06:00
|
|
|
|
|
|
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result = acpi_ac_get_state(ac);
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|
|
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if (result)
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goto end;
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|
|
2013-09-25 06:39:45 -06:00
|
|
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ac->charger.name = acpi_device_bid(adev);
|
2007-09-26 09:44:06 -06:00
|
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ac->charger.type = POWER_SUPPLY_TYPE_MAINS;
|
|
|
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ac->charger.properties = ac_props;
|
|
|
|
ac->charger.num_properties = ARRAY_SIZE(ac_props);
|
|
|
|
ac->charger.get_property = get_ac_property;
|
2013-09-25 06:39:45 -06:00
|
|
|
result = power_supply_register(&pdev->dev, &ac->charger);
|
2012-07-19 23:29:16 -06:00
|
|
|
if (result)
|
|
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|
goto end;
|
2005-04-16 16:20:36 -06:00
|
|
|
|
2013-09-25 06:39:45 -06:00
|
|
|
result = acpi_install_notify_handler(ACPI_HANDLE(&pdev->dev),
|
2014-01-03 19:07:59 -07:00
|
|
|
ACPI_ALL_NOTIFY, acpi_ac_notify_handler, ac);
|
2013-09-25 06:39:45 -06:00
|
|
|
if (result) {
|
|
|
|
power_supply_unregister(&ac->charger);
|
|
|
|
goto end;
|
|
|
|
}
|
2005-08-04 22:44:28 -06:00
|
|
|
printk(KERN_INFO PREFIX "%s [%s] (%s)\n",
|
2013-09-25 06:39:45 -06:00
|
|
|
acpi_device_name(adev), acpi_device_bid(adev),
|
2005-08-04 22:44:28 -06:00
|
|
|
ac->state ? "on-line" : "off-line");
|
2005-04-16 16:20:36 -06:00
|
|
|
|
2013-10-12 07:04:48 -06:00
|
|
|
end:
|
|
|
|
if (result)
|
2005-04-16 16:20:36 -06:00
|
|
|
kfree(ac);
|
|
|
|
|
2013-05-08 01:28:46 -06:00
|
|
|
dmi_check_system(ac_dmi_table);
|
2006-06-26 22:41:40 -06:00
|
|
|
return result;
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
|
|
|
|
2012-08-09 15:00:02 -06:00
|
|
|
#ifdef CONFIG_PM_SLEEP
|
2012-06-27 15:26:35 -06:00
|
|
|
static int acpi_ac_resume(struct device *dev)
|
2007-11-14 18:00:39 -07:00
|
|
|
{
|
|
|
|
struct acpi_ac *ac;
|
|
|
|
unsigned old_state;
|
2012-06-27 15:26:35 -06:00
|
|
|
|
|
|
|
if (!dev)
|
|
|
|
return -EINVAL;
|
|
|
|
|
2013-09-25 06:39:45 -06:00
|
|
|
ac = platform_get_drvdata(to_platform_device(dev));
|
2012-06-27 15:26:35 -06:00
|
|
|
if (!ac)
|
2007-11-14 18:00:39 -07:00
|
|
|
return -EINVAL;
|
2012-06-27 15:26:35 -06:00
|
|
|
|
2007-11-14 18:00:39 -07:00
|
|
|
old_state = ac->state;
|
|
|
|
if (acpi_ac_get_state(ac))
|
|
|
|
return 0;
|
|
|
|
if (old_state != ac->state)
|
|
|
|
kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE);
|
|
|
|
return 0;
|
|
|
|
}
|
2012-08-09 15:00:02 -06:00
|
|
|
#endif
|
2013-09-25 06:39:45 -06:00
|
|
|
static SIMPLE_DEV_PM_OPS(acpi_ac_pm_ops, NULL, acpi_ac_resume);
|
2007-11-14 18:00:39 -07:00
|
|
|
|
2013-09-25 06:39:45 -06:00
|
|
|
static int acpi_ac_remove(struct platform_device *pdev)
|
2005-04-16 16:20:36 -06:00
|
|
|
{
|
2013-09-25 06:39:45 -06:00
|
|
|
struct acpi_ac *ac;
|
2005-04-16 16:20:36 -06:00
|
|
|
|
2013-09-25 06:39:45 -06:00
|
|
|
if (!pdev)
|
2006-06-26 22:41:40 -06:00
|
|
|
return -EINVAL;
|
2005-04-16 16:20:36 -06:00
|
|
|
|
2013-09-25 06:39:45 -06:00
|
|
|
acpi_remove_notify_handler(ACPI_HANDLE(&pdev->dev),
|
2014-01-03 19:07:59 -07:00
|
|
|
ACPI_ALL_NOTIFY, acpi_ac_notify_handler);
|
2005-04-16 16:20:36 -06:00
|
|
|
|
2013-09-25 06:39:45 -06:00
|
|
|
ac = platform_get_drvdata(pdev);
|
2007-09-26 09:44:06 -06:00
|
|
|
if (ac->charger.dev)
|
|
|
|
power_supply_unregister(&ac->charger);
|
2013-09-25 06:39:45 -06:00
|
|
|
|
2005-04-16 16:20:36 -06:00
|
|
|
kfree(ac);
|
|
|
|
|
2006-06-26 22:41:40 -06:00
|
|
|
return 0;
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
|
|
|
|
2013-09-25 06:39:45 -06:00
|
|
|
static const struct acpi_device_id acpi_ac_match[] = {
|
|
|
|
{ "ACPI0003", 0 },
|
|
|
|
{ }
|
|
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(acpi, acpi_ac_match);
|
|
|
|
|
|
|
|
static struct platform_driver acpi_ac_driver = {
|
|
|
|
.probe = acpi_ac_probe,
|
|
|
|
.remove = acpi_ac_remove,
|
|
|
|
.driver = {
|
|
|
|
.name = "acpi-ac",
|
|
|
|
.owner = THIS_MODULE,
|
|
|
|
.pm = &acpi_ac_pm_ops,
|
|
|
|
.acpi_match_table = ACPI_PTR(acpi_ac_match),
|
|
|
|
},
|
|
|
|
};
|
|
|
|
|
2005-08-04 22:44:28 -06:00
|
|
|
static int __init acpi_ac_init(void)
|
2005-04-16 16:20:36 -06:00
|
|
|
{
|
2006-07-01 09:36:54 -06:00
|
|
|
int result;
|
2005-04-16 16:20:36 -06:00
|
|
|
|
2006-08-14 23:37:22 -06:00
|
|
|
if (acpi_disabled)
|
|
|
|
return -ENODEV;
|
2005-04-16 16:20:36 -06:00
|
|
|
|
2013-09-25 06:39:45 -06:00
|
|
|
result = platform_driver_register(&acpi_ac_driver);
|
2013-10-12 07:04:48 -06:00
|
|
|
if (result < 0)
|
2006-06-26 22:41:40 -06:00
|
|
|
return -ENODEV;
|
2005-04-16 16:20:36 -06:00
|
|
|
|
2006-06-26 22:41:40 -06:00
|
|
|
return 0;
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
|
|
|
|
2005-08-04 22:44:28 -06:00
|
|
|
static void __exit acpi_ac_exit(void)
|
2005-04-16 16:20:36 -06:00
|
|
|
{
|
2013-09-25 06:39:45 -06:00
|
|
|
platform_driver_unregister(&acpi_ac_driver);
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
|
|
|
module_init(acpi_ac_init);
|
|
|
|
module_exit(acpi_ac_exit);
|