Merge branches 'acpi-scan', 'acpi-processor' and 'acpi-assorted'
* acpi-scan: ACPI / bus: Move ACPI bus type registration ACPI / scan: Move bus operations and notification routines to bus.c ACPI / scan: Move device matching code to bus.c ACPI / scan: Move sysfs-related device code to a separate file * acpi-processor: PCC: Disable compilation by default ACPI: Decouple ACPI idle and ACPI processor drivers ACPI: Split out ACPI PSS from ACPI Processor driver PCC: Initialize PCC Mailbox earlier at boot ACPI / processor: remove leftover __refdata annotations * acpi-assorted: ACPI: fix acpi_debugfs_init prototype ACPI: Remove FSF mailing addresseshifive-unleashed-5.1
Rafael J. Wysocki
commit
73990fc810
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@ -189,17 +189,24 @@ config ACPI_DOCK
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This driver supports ACPI-controlled docking stations and removable
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drive bays such as the IBM Ultrabay and the Dell Module Bay.
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config ACPI_CPU_FREQ_PSS
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bool
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select THERMAL
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config ACPI_PROCESSOR_IDLE
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bool
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select CPU_IDLE
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config ACPI_PROCESSOR
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tristate "Processor"
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select THERMAL
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select CPU_IDLE
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depends on X86 || IA64
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select ACPI_PROCESSOR_IDLE
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select ACPI_CPU_FREQ_PSS
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default y
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help
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This driver installs ACPI as the idle handler for Linux and uses
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ACPI C2 and C3 processor states to save power on systems that
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support it. It is required by several flavors of cpufreq
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performance-state drivers.
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This driver adds support for the ACPI Processor package. It is required
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by several flavors of cpufreq performance-state, thermal, throttling and
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idle drivers.
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To compile this driver as a module, choose M here:
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the module will be called processor.
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@ -24,7 +24,7 @@ acpi-y += nvs.o
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# Power management related files
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acpi-y += wakeup.o
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acpi-$(CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT) += sleep.o
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acpi-y += device_pm.o
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acpi-y += device_sysfs.o device_pm.o
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acpi-$(CONFIG_ACPI_SLEEP) += proc.o
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@ -80,8 +80,10 @@ obj-$(CONFIG_ACPI_CUSTOM_METHOD)+= custom_method.o
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obj-$(CONFIG_ACPI_BGRT) += bgrt.o
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# processor has its own "processor." module_param namespace
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processor-y := processor_driver.o processor_throttling.o
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processor-y += processor_idle.o processor_thermal.o
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processor-y := processor_driver.o
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processor-$(CONFIG_ACPI_PROCESSOR_IDLE) += processor_idle.o
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processor-$(CONFIG_ACPI_CPU_FREQ_PSS) += processor_throttling.o \
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processor_thermal.o
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processor-$(CONFIG_CPU_FREQ) += processor_perflib.o
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obj-$(CONFIG_ACPI_PROCESSOR_AGGREGATOR) += acpi_pad.o
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@ -16,10 +16,6 @@
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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
|
||||
* 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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|
|
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@ -17,10 +17,6 @@
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
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||||
* You should have received a copy of the GNU General Public License along
|
||||
* 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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|
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@ -16,11 +16,6 @@
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* NON INFRINGEMENT. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*
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* ACPI based HotPlug driver that supports Memory Hotplug
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* This driver fields notifications from firmware for memory add
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* and remove operations and alerts the VM of the affected memory
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|
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@ -12,10 +12,6 @@
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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||||
* more details.
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*
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* You should have received a copy of the GNU General Public License along with
|
||||
* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
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*
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*/
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#include <linux/kernel.h>
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@ -485,7 +485,7 @@ static const struct acpi_device_id processor_device_ids[] = {
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{ }
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};
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static struct acpi_scan_handler __refdata processor_handler = {
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static struct acpi_scan_handler processor_handler = {
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.ids = processor_device_ids,
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.attach = acpi_processor_add,
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#ifdef CONFIG_ACPI_HOTPLUG_CPU
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|
|
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@ -17,10 +17,6 @@
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along
|
||||
* 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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|
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@ -24,10 +24,6 @@
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/kernel.h>
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@ -18,10 +18,6 @@
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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||||
*/
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#include <linux/kernel.h>
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|
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@ -17,10 +17,6 @@
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/kernel.h>
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|
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@ -18,10 +18,6 @@
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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||||
*/
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#include <linux/kernel.h>
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|
|
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|
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@ -23,10 +23,6 @@
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|||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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||||
*/
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#include <linux/kernel.h>
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|
|
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|
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@ -21,10 +21,6 @@
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|||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*/
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||||
|
||||
#include <linux/kernel.h>
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||||
|
|
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|||
|
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@ -18,10 +18,6 @@
|
|||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along
|
||||
* with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
* 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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|||
|
|
@ -20,10 +20,6 @@
|
|||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along
|
||||
* with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
* 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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|||
|
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@ -15,10 +15,6 @@
|
|||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along
|
||||
* with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
|
||||
*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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||||
*/
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@ -423,6 +419,384 @@ static void acpi_bus_notify(acpi_handle handle, u32 type, void *data)
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acpi_evaluate_ost(handle, type, ost_code, NULL);
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}
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static void acpi_device_notify(acpi_handle handle, u32 event, void *data)
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{
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struct acpi_device *device = data;
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device->driver->ops.notify(device, event);
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}
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static void acpi_device_notify_fixed(void *data)
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{
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struct acpi_device *device = data;
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/* Fixed hardware devices have no handles */
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acpi_device_notify(NULL, ACPI_FIXED_HARDWARE_EVENT, device);
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}
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static u32 acpi_device_fixed_event(void *data)
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{
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acpi_os_execute(OSL_NOTIFY_HANDLER, acpi_device_notify_fixed, data);
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return ACPI_INTERRUPT_HANDLED;
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}
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static int acpi_device_install_notify_handler(struct acpi_device *device)
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{
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acpi_status status;
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|
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if (device->device_type == ACPI_BUS_TYPE_POWER_BUTTON)
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status =
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acpi_install_fixed_event_handler(ACPI_EVENT_POWER_BUTTON,
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acpi_device_fixed_event,
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device);
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else if (device->device_type == ACPI_BUS_TYPE_SLEEP_BUTTON)
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status =
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acpi_install_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON,
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acpi_device_fixed_event,
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device);
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else
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status = acpi_install_notify_handler(device->handle,
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ACPI_DEVICE_NOTIFY,
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acpi_device_notify,
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device);
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if (ACPI_FAILURE(status))
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return -EINVAL;
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return 0;
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}
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|
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static void acpi_device_remove_notify_handler(struct acpi_device *device)
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{
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if (device->device_type == ACPI_BUS_TYPE_POWER_BUTTON)
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acpi_remove_fixed_event_handler(ACPI_EVENT_POWER_BUTTON,
|
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acpi_device_fixed_event);
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||||
else if (device->device_type == ACPI_BUS_TYPE_SLEEP_BUTTON)
|
||||
acpi_remove_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON,
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acpi_device_fixed_event);
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||||
else
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||||
acpi_remove_notify_handler(device->handle, ACPI_DEVICE_NOTIFY,
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acpi_device_notify);
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||||
}
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||||
|
||||
/* --------------------------------------------------------------------------
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||||
Device Matching
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||||
-------------------------------------------------------------------------- */
|
||||
|
||||
/*
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||||
* acpi_companion_match() - Can we match via ACPI companion device
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||||
* @dev: Device in question
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||||
*
|
||||
* Check if the given device has an ACPI companion and if that companion has
|
||||
* a valid list of PNP IDs, and if the device is the first (primary) physical
|
||||
* device associated with it. Return the companion pointer if that's the case
|
||||
* or NULL otherwise.
|
||||
*
|
||||
* If multiple physical devices are attached to a single ACPI companion, we need
|
||||
* to be careful. The usage scenario for this kind of relationship is that all
|
||||
* of the physical devices in question use resources provided by the ACPI
|
||||
* companion. A typical case is an MFD device where all the sub-devices share
|
||||
* the parent's ACPI companion. In such cases we can only allow the primary
|
||||
* (first) physical device to be matched with the help of the companion's PNP
|
||||
* IDs.
|
||||
*
|
||||
* Additional physical devices sharing the ACPI companion can still use
|
||||
* resources available from it but they will be matched normally using functions
|
||||
* provided by their bus types (and analogously for their modalias).
|
||||
*/
|
||||
struct acpi_device *acpi_companion_match(const struct device *dev)
|
||||
{
|
||||
struct acpi_device *adev;
|
||||
struct mutex *physical_node_lock;
|
||||
|
||||
adev = ACPI_COMPANION(dev);
|
||||
if (!adev)
|
||||
return NULL;
|
||||
|
||||
if (list_empty(&adev->pnp.ids))
|
||||
return NULL;
|
||||
|
||||
physical_node_lock = &adev->physical_node_lock;
|
||||
mutex_lock(physical_node_lock);
|
||||
if (list_empty(&adev->physical_node_list)) {
|
||||
adev = NULL;
|
||||
} else {
|
||||
const struct acpi_device_physical_node *node;
|
||||
|
||||
node = list_first_entry(&adev->physical_node_list,
|
||||
struct acpi_device_physical_node, node);
|
||||
if (node->dev != dev)
|
||||
adev = NULL;
|
||||
}
|
||||
mutex_unlock(physical_node_lock);
|
||||
|
||||
return adev;
|
||||
}
|
||||
|
||||
/**
|
||||
* acpi_of_match_device - Match device object using the "compatible" property.
|
||||
* @adev: ACPI device object to match.
|
||||
* @of_match_table: List of device IDs to match against.
|
||||
*
|
||||
* If @dev has an ACPI companion which has ACPI_DT_NAMESPACE_HID in its list of
|
||||
* identifiers and a _DSD object with the "compatible" property, use that
|
||||
* property to match against the given list of identifiers.
|
||||
*/
|
||||
static bool acpi_of_match_device(struct acpi_device *adev,
|
||||
const struct of_device_id *of_match_table)
|
||||
{
|
||||
const union acpi_object *of_compatible, *obj;
|
||||
int i, nval;
|
||||
|
||||
if (!adev)
|
||||
return false;
|
||||
|
||||
of_compatible = adev->data.of_compatible;
|
||||
if (!of_match_table || !of_compatible)
|
||||
return false;
|
||||
|
||||
if (of_compatible->type == ACPI_TYPE_PACKAGE) {
|
||||
nval = of_compatible->package.count;
|
||||
obj = of_compatible->package.elements;
|
||||
} else { /* Must be ACPI_TYPE_STRING. */
|
||||
nval = 1;
|
||||
obj = of_compatible;
|
||||
}
|
||||
/* Now we can look for the driver DT compatible strings */
|
||||
for (i = 0; i < nval; i++, obj++) {
|
||||
const struct of_device_id *id;
|
||||
|
||||
for (id = of_match_table; id->compatible[0]; id++)
|
||||
if (!strcasecmp(obj->string.pointer, id->compatible))
|
||||
return true;
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
static bool __acpi_match_device_cls(const struct acpi_device_id *id,
|
||||
struct acpi_hardware_id *hwid)
|
||||
{
|
||||
int i, msk, byte_shift;
|
||||
char buf[3];
|
||||
|
||||
if (!id->cls)
|
||||
return false;
|
||||
|
||||
/* Apply class-code bitmask, before checking each class-code byte */
|
||||
for (i = 1; i <= 3; i++) {
|
||||
byte_shift = 8 * (3 - i);
|
||||
msk = (id->cls_msk >> byte_shift) & 0xFF;
|
||||
if (!msk)
|
||||
continue;
|
||||
|
||||
sprintf(buf, "%02x", (id->cls >> byte_shift) & msk);
|
||||
if (strncmp(buf, &hwid->id[(i - 1) * 2], 2))
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
static const struct acpi_device_id *__acpi_match_device(
|
||||
struct acpi_device *device,
|
||||
const struct acpi_device_id *ids,
|
||||
const struct of_device_id *of_ids)
|
||||
{
|
||||
const struct acpi_device_id *id;
|
||||
struct acpi_hardware_id *hwid;
|
||||
|
||||
/*
|
||||
* If the device is not present, it is unnecessary to load device
|
||||
* driver for it.
|
||||
*/
|
||||
if (!device || !device->status.present)
|
||||
return NULL;
|
||||
|
||||
list_for_each_entry(hwid, &device->pnp.ids, list) {
|
||||
/* First, check the ACPI/PNP IDs provided by the caller. */
|
||||
for (id = ids; id->id[0] || id->cls; id++) {
|
||||
if (id->id[0] && !strcmp((char *) id->id, hwid->id))
|
||||
return id;
|
||||
else if (id->cls && __acpi_match_device_cls(id, hwid))
|
||||
return id;
|
||||
}
|
||||
|
||||
/*
|
||||
* Next, check ACPI_DT_NAMESPACE_HID and try to match the
|
||||
* "compatible" property if found.
|
||||
*
|
||||
* The id returned by the below is not valid, but the only
|
||||
* caller passing non-NULL of_ids here is only interested in
|
||||
* whether or not the return value is NULL.
|
||||
*/
|
||||
if (!strcmp(ACPI_DT_NAMESPACE_HID, hwid->id)
|
||||
&& acpi_of_match_device(device, of_ids))
|
||||
return id;
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/**
|
||||
* acpi_match_device - Match a struct device against a given list of ACPI IDs
|
||||
* @ids: Array of struct acpi_device_id object to match against.
|
||||
* @dev: The device structure to match.
|
||||
*
|
||||
* Check if @dev has a valid ACPI handle and if there is a struct acpi_device
|
||||
* object for that handle and use that object to match against a given list of
|
||||
* device IDs.
|
||||
*
|
||||
* Return a pointer to the first matching ID on success or %NULL on failure.
|
||||
*/
|
||||
const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
|
||||
const struct device *dev)
|
||||
{
|
||||
return __acpi_match_device(acpi_companion_match(dev), ids, NULL);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(acpi_match_device);
|
||||
|
||||
int acpi_match_device_ids(struct acpi_device *device,
|
||||
const struct acpi_device_id *ids)
|
||||
{
|
||||
return __acpi_match_device(device, ids, NULL) ? 0 : -ENOENT;
|
||||
}
|
||||
EXPORT_SYMBOL(acpi_match_device_ids);
|
||||
|
||||
bool acpi_driver_match_device(struct device *dev,
|
||||
const struct device_driver *drv)
|
||||
{
|
||||
if (!drv->acpi_match_table)
|
||||
return acpi_of_match_device(ACPI_COMPANION(dev),
|
||||
drv->of_match_table);
|
||||
|
||||
return !!__acpi_match_device(acpi_companion_match(dev),
|
||||
drv->acpi_match_table, drv->of_match_table);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(acpi_driver_match_device);
|
||||
|
||||
/* --------------------------------------------------------------------------
|
||||
ACPI Driver Management
|
||||
-------------------------------------------------------------------------- */
|
||||
|
||||
/**
|
||||
* acpi_bus_register_driver - register a driver with the ACPI bus
|
||||
* @driver: driver being registered
|
||||
*
|
||||
* Registers a driver with the ACPI bus. Searches the namespace for all
|
||||
* devices that match the driver's criteria and binds. Returns zero for
|
||||
* success or a negative error status for failure.
|
||||
*/
|
||||
int acpi_bus_register_driver(struct acpi_driver *driver)
|
||||
{
|
||||
int ret;
|
||||
|
||||
if (acpi_disabled)
|
||||
return -ENODEV;
|
||||
driver->drv.name = driver->name;
|
||||
driver->drv.bus = &acpi_bus_type;
|
||||
driver->drv.owner = driver->owner;
|
||||
|
||||
ret = driver_register(&driver->drv);
|
||||
return ret;
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(acpi_bus_register_driver);
|
||||
|
||||
/**
|
||||
* acpi_bus_unregister_driver - unregisters a driver with the ACPI bus
|
||||
* @driver: driver to unregister
|
||||
*
|
||||
* Unregisters a driver with the ACPI bus. Searches the namespace for all
|
||||
* devices that match the driver's criteria and unbinds.
|
||||
*/
|
||||
void acpi_bus_unregister_driver(struct acpi_driver *driver)
|
||||
{
|
||||
driver_unregister(&driver->drv);
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(acpi_bus_unregister_driver);
|
||||
|
||||
/* --------------------------------------------------------------------------
|
||||
ACPI Bus operations
|
||||
-------------------------------------------------------------------------- */
|
||||
|
||||
static int acpi_bus_match(struct device *dev, struct device_driver *drv)
|
||||
{
|
||||
struct acpi_device *acpi_dev = to_acpi_device(dev);
|
||||
struct acpi_driver *acpi_drv = to_acpi_driver(drv);
|
||||
|
||||
return acpi_dev->flags.match_driver
|
||||
&& !acpi_match_device_ids(acpi_dev, acpi_drv->ids);
|
||||
}
|
||||
|
||||
static int acpi_device_uevent(struct device *dev, struct kobj_uevent_env *env)
|
||||
{
|
||||
return __acpi_device_uevent_modalias(to_acpi_device(dev), env);
|
||||
}
|
||||
|
||||
static int acpi_device_probe(struct device *dev)
|
||||
{
|
||||
struct acpi_device *acpi_dev = to_acpi_device(dev);
|
||||
struct acpi_driver *acpi_drv = to_acpi_driver(dev->driver);
|
||||
int ret;
|
||||
|
||||
if (acpi_dev->handler && !acpi_is_pnp_device(acpi_dev))
|
||||
return -EINVAL;
|
||||
|
||||
if (!acpi_drv->ops.add)
|
||||
return -ENOSYS;
|
||||
|
||||
ret = acpi_drv->ops.add(acpi_dev);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
acpi_dev->driver = acpi_drv;
|
||||
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
|
||||
"Driver [%s] successfully bound to device [%s]\n",
|
||||
acpi_drv->name, acpi_dev->pnp.bus_id));
|
||||
|
||||
if (acpi_drv->ops.notify) {
|
||||
ret = acpi_device_install_notify_handler(acpi_dev);
|
||||
if (ret) {
|
||||
if (acpi_drv->ops.remove)
|
||||
acpi_drv->ops.remove(acpi_dev);
|
||||
|
||||
acpi_dev->driver = NULL;
|
||||
acpi_dev->driver_data = NULL;
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
|
||||
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found driver [%s] for device [%s]\n",
|
||||
acpi_drv->name, acpi_dev->pnp.bus_id));
|
||||
get_device(dev);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int acpi_device_remove(struct device * dev)
|
||||
{
|
||||
struct acpi_device *acpi_dev = to_acpi_device(dev);
|
||||
struct acpi_driver *acpi_drv = acpi_dev->driver;
|
||||
|
||||
if (acpi_drv) {
|
||||
if (acpi_drv->ops.notify)
|
||||
acpi_device_remove_notify_handler(acpi_dev);
|
||||
if (acpi_drv->ops.remove)
|
||||
acpi_drv->ops.remove(acpi_dev);
|
||||
}
|
||||
acpi_dev->driver = NULL;
|
||||
acpi_dev->driver_data = NULL;
|
||||
|
||||
put_device(dev);
|
||||
return 0;
|
||||
}
|
||||
|
||||
struct bus_type acpi_bus_type = {
|
||||
.name = "acpi",
|
||||
.match = acpi_bus_match,
|
||||
.probe = acpi_device_probe,
|
||||
.remove = acpi_device_remove,
|
||||
.uevent = acpi_device_uevent,
|
||||
};
|
||||
|
||||
/* --------------------------------------------------------------------------
|
||||
Initialization/Cleanup
|
||||
-------------------------------------------------------------------------- */
|
||||
|
|
@ -661,7 +1035,9 @@ static int __init acpi_bus_init(void)
|
|||
*/
|
||||
acpi_root_dir = proc_mkdir(ACPI_BUS_FILE_ROOT, NULL);
|
||||
|
||||
return 0;
|
||||
result = bus_register(&acpi_bus_type);
|
||||
if (!result)
|
||||
return 0;
|
||||
|
||||
/* Mimic structured exception handling */
|
||||
error1:
|
||||
|
|
|
|||
|
|
@ -16,10 +16,6 @@
|
|||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along
|
||||
* with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
|
||||
*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
*/
|
||||
|
||||
|
|
|
|||
|
|
@ -11,10 +11,6 @@
|
|||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along
|
||||
* with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
|
||||
*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
*/
|
||||
|
||||
|
|
|
|||
|
|
@ -20,10 +20,6 @@
|
|||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along
|
||||
* with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
|
||||
*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
*/
|
||||
#include <linux/acpi.h>
|
||||
|
|
|
|||
|
|
@ -7,6 +7,8 @@
|
|||
#include <linux/debugfs.h>
|
||||
#include <linux/acpi.h>
|
||||
|
||||
#include "internal.h"
|
||||
|
||||
#define _COMPONENT ACPI_SYSTEM_COMPONENT
|
||||
ACPI_MODULE_NAME("debugfs");
|
||||
|
||||
|
|
|
|||
|
|
@ -15,10 +15,6 @@
|
|||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along
|
||||
* with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
|
||||
*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
*/
|
||||
|
||||
|
|
|
|||
|
|
@ -0,0 +1,521 @@
|
|||
/*
|
||||
* drivers/acpi/device_sysfs.c - ACPI device sysfs attributes and modalias.
|
||||
*
|
||||
* Copyright (C) 2015, Intel Corp.
|
||||
* Author: Mika Westerberg <mika.westerberg@linux.intel.com>
|
||||
* Author: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
|
||||
*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as published
|
||||
* by the Free Software Foundation.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful, but
|
||||
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
*/
|
||||
|
||||
#include <linux/acpi.h>
|
||||
#include <linux/device.h>
|
||||
#include <linux/export.h>
|
||||
#include <linux/nls.h>
|
||||
|
||||
#include "internal.h"
|
||||
|
||||
/**
|
||||
* create_pnp_modalias - Create hid/cid(s) string for modalias and uevent
|
||||
* @acpi_dev: ACPI device object.
|
||||
* @modalias: Buffer to print into.
|
||||
* @size: Size of the buffer.
|
||||
*
|
||||
* Creates hid/cid(s) string needed for modalias and uevent
|
||||
* e.g. on a device with hid:IBM0001 and cid:ACPI0001 you get:
|
||||
* char *modalias: "acpi:IBM0001:ACPI0001"
|
||||
* Return: 0: no _HID and no _CID
|
||||
* -EINVAL: output error
|
||||
* -ENOMEM: output is truncated
|
||||
*/
|
||||
static int create_pnp_modalias(struct acpi_device *acpi_dev, char *modalias,
|
||||
int size)
|
||||
{
|
||||
int len;
|
||||
int count;
|
||||
struct acpi_hardware_id *id;
|
||||
|
||||
/*
|
||||
* Since we skip ACPI_DT_NAMESPACE_HID from the modalias below, 0 should
|
||||
* be returned if ACPI_DT_NAMESPACE_HID is the only ACPI/PNP ID in the
|
||||
* device's list.
|
||||
*/
|
||||
count = 0;
|
||||
list_for_each_entry(id, &acpi_dev->pnp.ids, list)
|
||||
if (strcmp(id->id, ACPI_DT_NAMESPACE_HID))
|
||||
count++;
|
||||
|
||||
if (!count)
|
||||
return 0;
|
||||
|
||||
len = snprintf(modalias, size, "acpi:");
|
||||
if (len <= 0)
|
||||
return len;
|
||||
|
||||
size -= len;
|
||||
|
||||
list_for_each_entry(id, &acpi_dev->pnp.ids, list) {
|
||||
if (!strcmp(id->id, ACPI_DT_NAMESPACE_HID))
|
||||
continue;
|
||||
|
||||
count = snprintf(&modalias[len], size, "%s:", id->id);
|
||||
if (count < 0)
|
||||
return -EINVAL;
|
||||
|
||||
if (count >= size)
|
||||
return -ENOMEM;
|
||||
|
||||
len += count;
|
||||
size -= count;
|
||||
}
|
||||
modalias[len] = '\0';
|
||||
return len;
|
||||
}
|
||||
|
||||
/**
|
||||
* create_of_modalias - Creates DT compatible string for modalias and uevent
|
||||
* @acpi_dev: ACPI device object.
|
||||
* @modalias: Buffer to print into.
|
||||
* @size: Size of the buffer.
|
||||
*
|
||||
* Expose DT compatible modalias as of:NnameTCcompatible. This function should
|
||||
* only be called for devices having ACPI_DT_NAMESPACE_HID in their list of
|
||||
* ACPI/PNP IDs.
|
||||
*/
|
||||
static int create_of_modalias(struct acpi_device *acpi_dev, char *modalias,
|
||||
int size)
|
||||
{
|
||||
struct acpi_buffer buf = { ACPI_ALLOCATE_BUFFER };
|
||||
const union acpi_object *of_compatible, *obj;
|
||||
int len, count;
|
||||
int i, nval;
|
||||
char *c;
|
||||
|
||||
acpi_get_name(acpi_dev->handle, ACPI_SINGLE_NAME, &buf);
|
||||
/* DT strings are all in lower case */
|
||||
for (c = buf.pointer; *c != '\0'; c++)
|
||||
*c = tolower(*c);
|
||||
|
||||
len = snprintf(modalias, size, "of:N%sT", (char *)buf.pointer);
|
||||
ACPI_FREE(buf.pointer);
|
||||
|
||||
if (len <= 0)
|
||||
return len;
|
||||
|
||||
of_compatible = acpi_dev->data.of_compatible;
|
||||
if (of_compatible->type == ACPI_TYPE_PACKAGE) {
|
||||
nval = of_compatible->package.count;
|
||||
obj = of_compatible->package.elements;
|
||||
} else { /* Must be ACPI_TYPE_STRING. */
|
||||
nval = 1;
|
||||
obj = of_compatible;
|
||||
}
|
||||
for (i = 0; i < nval; i++, obj++) {
|
||||
count = snprintf(&modalias[len], size, "C%s",
|
||||
obj->string.pointer);
|
||||
if (count < 0)
|
||||
return -EINVAL;
|
||||
|
||||
if (count >= size)
|
||||
return -ENOMEM;
|
||||
|
||||
len += count;
|
||||
size -= count;
|
||||
}
|
||||
modalias[len] = '\0';
|
||||
return len;
|
||||
}
|
||||
|
||||
int __acpi_device_uevent_modalias(struct acpi_device *adev,
|
||||
struct kobj_uevent_env *env)
|
||||
{
|
||||
int len;
|
||||
|
||||
if (!adev)
|
||||
return -ENODEV;
|
||||
|
||||
if (list_empty(&adev->pnp.ids))
|
||||
return 0;
|
||||
|
||||
if (add_uevent_var(env, "MODALIAS="))
|
||||
return -ENOMEM;
|
||||
|
||||
len = create_pnp_modalias(adev, &env->buf[env->buflen - 1],
|
||||
sizeof(env->buf) - env->buflen);
|
||||
if (len < 0)
|
||||
return len;
|
||||
|
||||
env->buflen += len;
|
||||
if (!adev->data.of_compatible)
|
||||
return 0;
|
||||
|
||||
if (len > 0 && add_uevent_var(env, "MODALIAS="))
|
||||
return -ENOMEM;
|
||||
|
||||
len = create_of_modalias(adev, &env->buf[env->buflen - 1],
|
||||
sizeof(env->buf) - env->buflen);
|
||||
if (len < 0)
|
||||
return len;
|
||||
|
||||
env->buflen += len;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* acpi_device_uevent_modalias - uevent modalias for ACPI-enumerated devices.
|
||||
*
|
||||
* Create the uevent modalias field for ACPI-enumerated devices.
|
||||
*
|
||||
* Because other buses do not support ACPI HIDs & CIDs, e.g. for a device with
|
||||
* hid:IBM0001 and cid:ACPI0001 you get: "acpi:IBM0001:ACPI0001".
|
||||
*/
|
||||
int acpi_device_uevent_modalias(struct device *dev, struct kobj_uevent_env *env)
|
||||
{
|
||||
return __acpi_device_uevent_modalias(acpi_companion_match(dev), env);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(acpi_device_uevent_modalias);
|
||||
|
||||
static int __acpi_device_modalias(struct acpi_device *adev, char *buf, int size)
|
||||
{
|
||||
int len, count;
|
||||
|
||||
if (!adev)
|
||||
return -ENODEV;
|
||||
|
||||
if (list_empty(&adev->pnp.ids))
|
||||
return 0;
|
||||
|
||||
len = create_pnp_modalias(adev, buf, size - 1);
|
||||
if (len < 0) {
|
||||
return len;
|
||||
} else if (len > 0) {
|
||||
buf[len++] = '\n';
|
||||
size -= len;
|
||||
}
|
||||
if (!adev->data.of_compatible)
|
||||
return len;
|
||||
|
||||
count = create_of_modalias(adev, buf + len, size - 1);
|
||||
if (count < 0) {
|
||||
return count;
|
||||
} else if (count > 0) {
|
||||
len += count;
|
||||
buf[len++] = '\n';
|
||||
}
|
||||
|
||||
return len;
|
||||
}
|
||||
|
||||
/**
|
||||
* acpi_device_modalias - modalias sysfs attribute for ACPI-enumerated devices.
|
||||
*
|
||||
* Create the modalias sysfs attribute for ACPI-enumerated devices.
|
||||
*
|
||||
* Because other buses do not support ACPI HIDs & CIDs, e.g. for a device with
|
||||
* hid:IBM0001 and cid:ACPI0001 you get: "acpi:IBM0001:ACPI0001".
|
||||
*/
|
||||
int acpi_device_modalias(struct device *dev, char *buf, int size)
|
||||
{
|
||||
return __acpi_device_modalias(acpi_companion_match(dev), buf, size);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(acpi_device_modalias);
|
||||
|
||||
static ssize_t
|
||||
acpi_device_modalias_show(struct device *dev, struct device_attribute *attr, char *buf) {
|
||||
return __acpi_device_modalias(to_acpi_device(dev), buf, 1024);
|
||||
}
|
||||
static DEVICE_ATTR(modalias, 0444, acpi_device_modalias_show, NULL);
|
||||
|
||||
static ssize_t real_power_state_show(struct device *dev,
|
||||
struct device_attribute *attr, char *buf)
|
||||
{
|
||||
struct acpi_device *adev = to_acpi_device(dev);
|
||||
int state;
|
||||
int ret;
|
||||
|
||||
ret = acpi_device_get_power(adev, &state);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
return sprintf(buf, "%s\n", acpi_power_state_string(state));
|
||||
}
|
||||
|
||||
static DEVICE_ATTR(real_power_state, 0444, real_power_state_show, NULL);
|
||||
|
||||
static ssize_t power_state_show(struct device *dev,
|
||||
struct device_attribute *attr, char *buf)
|
||||
{
|
||||
struct acpi_device *adev = to_acpi_device(dev);
|
||||
|
||||
return sprintf(buf, "%s\n", acpi_power_state_string(adev->power.state));
|
||||
}
|
||||
|
||||
static DEVICE_ATTR(power_state, 0444, power_state_show, NULL);
|
||||
|
||||
static ssize_t
|
||||
acpi_eject_store(struct device *d, struct device_attribute *attr,
|
||||
const char *buf, size_t count)
|
||||
{
|
||||
struct acpi_device *acpi_device = to_acpi_device(d);
|
||||
acpi_object_type not_used;
|
||||
acpi_status status;
|
||||
|
||||
if (!count || buf[0] != '1')
|
||||
return -EINVAL;
|
||||
|
||||
if ((!acpi_device->handler || !acpi_device->handler->hotplug.enabled)
|
||||
&& !acpi_device->driver)
|
||||
return -ENODEV;
|
||||
|
||||
status = acpi_get_type(acpi_device->handle, ¬_used);
|
||||
if (ACPI_FAILURE(status) || !acpi_device->flags.ejectable)
|
||||
return -ENODEV;
|
||||
|
||||
get_device(&acpi_device->dev);
|
||||
status = acpi_hotplug_schedule(acpi_device, ACPI_OST_EC_OSPM_EJECT);
|
||||
if (ACPI_SUCCESS(status))
|
||||
return count;
|
||||
|
||||
put_device(&acpi_device->dev);
|
||||
acpi_evaluate_ost(acpi_device->handle, ACPI_OST_EC_OSPM_EJECT,
|
||||
ACPI_OST_SC_NON_SPECIFIC_FAILURE, NULL);
|
||||
return status == AE_NO_MEMORY ? -ENOMEM : -EAGAIN;
|
||||
}
|
||||
|
||||
static DEVICE_ATTR(eject, 0200, NULL, acpi_eject_store);
|
||||
|
||||
static ssize_t
|
||||
acpi_device_hid_show(struct device *dev, struct device_attribute *attr, char *buf) {
|
||||
struct acpi_device *acpi_dev = to_acpi_device(dev);
|
||||
|
||||
return sprintf(buf, "%s\n", acpi_device_hid(acpi_dev));
|
||||
}
|
||||
static DEVICE_ATTR(hid, 0444, acpi_device_hid_show, NULL);
|
||||
|
||||
static ssize_t acpi_device_uid_show(struct device *dev,
|
||||
struct device_attribute *attr, char *buf)
|
||||
{
|
||||
struct acpi_device *acpi_dev = to_acpi_device(dev);
|
||||
|
||||
return sprintf(buf, "%s\n", acpi_dev->pnp.unique_id);
|
||||
}
|
||||
static DEVICE_ATTR(uid, 0444, acpi_device_uid_show, NULL);
|
||||
|
||||
static ssize_t acpi_device_adr_show(struct device *dev,
|
||||
struct device_attribute *attr, char *buf)
|
||||
{
|
||||
struct acpi_device *acpi_dev = to_acpi_device(dev);
|
||||
|
||||
return sprintf(buf, "0x%08x\n",
|
||||
(unsigned int)(acpi_dev->pnp.bus_address));
|
||||
}
|
||||
static DEVICE_ATTR(adr, 0444, acpi_device_adr_show, NULL);
|
||||
|
||||
static ssize_t
|
||||
acpi_device_path_show(struct device *dev, struct device_attribute *attr, char *buf) {
|
||||
struct acpi_device *acpi_dev = to_acpi_device(dev);
|
||||
struct acpi_buffer path = {ACPI_ALLOCATE_BUFFER, NULL};
|
||||
int result;
|
||||
|
||||
result = acpi_get_name(acpi_dev->handle, ACPI_FULL_PATHNAME, &path);
|
||||
if (result)
|
||||
goto end;
|
||||
|
||||
result = sprintf(buf, "%s\n", (char*)path.pointer);
|
||||
kfree(path.pointer);
|
||||
end:
|
||||
return result;
|
||||
}
|
||||
static DEVICE_ATTR(path, 0444, acpi_device_path_show, NULL);
|
||||
|
||||
/* sysfs file that shows description text from the ACPI _STR method */
|
||||
static ssize_t description_show(struct device *dev,
|
||||
struct device_attribute *attr,
|
||||
char *buf) {
|
||||
struct acpi_device *acpi_dev = to_acpi_device(dev);
|
||||
int result;
|
||||
|
||||
if (acpi_dev->pnp.str_obj == NULL)
|
||||
return 0;
|
||||
|
||||
/*
|
||||
* The _STR object contains a Unicode identifier for a device.
|
||||
* We need to convert to utf-8 so it can be displayed.
|
||||
*/
|
||||
result = utf16s_to_utf8s(
|
||||
(wchar_t *)acpi_dev->pnp.str_obj->buffer.pointer,
|
||||
acpi_dev->pnp.str_obj->buffer.length,
|
||||
UTF16_LITTLE_ENDIAN, buf,
|
||||
PAGE_SIZE);
|
||||
|
||||
buf[result++] = '\n';
|
||||
|
||||
return result;
|
||||
}
|
||||
static DEVICE_ATTR(description, 0444, description_show, NULL);
|
||||
|
||||
static ssize_t
|
||||
acpi_device_sun_show(struct device *dev, struct device_attribute *attr,
|
||||
char *buf) {
|
||||
struct acpi_device *acpi_dev = to_acpi_device(dev);
|
||||
acpi_status status;
|
||||
unsigned long long sun;
|
||||
|
||||
status = acpi_evaluate_integer(acpi_dev->handle, "_SUN", NULL, &sun);
|
||||
if (ACPI_FAILURE(status))
|
||||
return -ENODEV;
|
||||
|
||||
return sprintf(buf, "%llu\n", sun);
|
||||
}
|
||||
static DEVICE_ATTR(sun, 0444, acpi_device_sun_show, NULL);
|
||||
|
||||
static ssize_t status_show(struct device *dev, struct device_attribute *attr,
|
||||
char *buf) {
|
||||
struct acpi_device *acpi_dev = to_acpi_device(dev);
|
||||
acpi_status status;
|
||||
unsigned long long sta;
|
||||
|
||||
status = acpi_evaluate_integer(acpi_dev->handle, "_STA", NULL, &sta);
|
||||
if (ACPI_FAILURE(status))
|
||||
return -ENODEV;
|
||||
|
||||
return sprintf(buf, "%llu\n", sta);
|
||||
}
|
||||
static DEVICE_ATTR_RO(status);
|
||||
|
||||
/**
|
||||
* acpi_device_setup_files - Create sysfs attributes of an ACPI device.
|
||||
* @dev: ACPI device object.
|
||||
*/
|
||||
int acpi_device_setup_files(struct acpi_device *dev)
|
||||
{
|
||||
struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
|
||||
acpi_status status;
|
||||
int result = 0;
|
||||
|
||||
/*
|
||||
* Devices gotten from FADT don't have a "path" attribute
|
||||
*/
|
||||
if (dev->handle) {
|
||||
result = device_create_file(&dev->dev, &dev_attr_path);
|
||||
if (result)
|
||||
goto end;
|
||||
}
|
||||
|
||||
if (!list_empty(&dev->pnp.ids)) {
|
||||
result = device_create_file(&dev->dev, &dev_attr_hid);
|
||||
if (result)
|
||||
goto end;
|
||||
|
||||
result = device_create_file(&dev->dev, &dev_attr_modalias);
|
||||
if (result)
|
||||
goto end;
|
||||
}
|
||||
|
||||
/*
|
||||
* If device has _STR, 'description' file is created
|
||||
*/
|
||||
if (acpi_has_method(dev->handle, "_STR")) {
|
||||
status = acpi_evaluate_object(dev->handle, "_STR",
|
||||
NULL, &buffer);
|
||||
if (ACPI_FAILURE(status))
|
||||
buffer.pointer = NULL;
|
||||
dev->pnp.str_obj = buffer.pointer;
|
||||
result = device_create_file(&dev->dev, &dev_attr_description);
|
||||
if (result)
|
||||
goto end;
|
||||
}
|
||||
|
||||
if (dev->pnp.type.bus_address)
|
||||
result = device_create_file(&dev->dev, &dev_attr_adr);
|
||||
if (dev->pnp.unique_id)
|
||||
result = device_create_file(&dev->dev, &dev_attr_uid);
|
||||
|
||||
if (acpi_has_method(dev->handle, "_SUN")) {
|
||||
result = device_create_file(&dev->dev, &dev_attr_sun);
|
||||
if (result)
|
||||
goto end;
|
||||
}
|
||||
|
||||
if (acpi_has_method(dev->handle, "_STA")) {
|
||||
result = device_create_file(&dev->dev, &dev_attr_status);
|
||||
if (result)
|
||||
goto end;
|
||||
}
|
||||
|
||||
/*
|
||||
* If device has _EJ0, 'eject' file is created that is used to trigger
|
||||
* hot-removal function from userland.
|
||||
*/
|
||||
if (acpi_has_method(dev->handle, "_EJ0")) {
|
||||
result = device_create_file(&dev->dev, &dev_attr_eject);
|
||||
if (result)
|
||||
return result;
|
||||
}
|
||||
|
||||
if (dev->flags.power_manageable) {
|
||||
result = device_create_file(&dev->dev, &dev_attr_power_state);
|
||||
if (result)
|
||||
return result;
|
||||
|
||||
if (dev->power.flags.power_resources)
|
||||
result = device_create_file(&dev->dev,
|
||||
&dev_attr_real_power_state);
|
||||
}
|
||||
|
||||
end:
|
||||
return result;
|
||||
}
|
||||
|
||||
/**
|
||||
* acpi_device_remove_files - Remove sysfs attributes of an ACPI device.
|
||||
* @dev: ACPI device object.
|
||||
*/
|
||||
void acpi_device_remove_files(struct acpi_device *dev)
|
||||
{
|
||||
if (dev->flags.power_manageable) {
|
||||
device_remove_file(&dev->dev, &dev_attr_power_state);
|
||||
if (dev->power.flags.power_resources)
|
||||
device_remove_file(&dev->dev,
|
||||
&dev_attr_real_power_state);
|
||||
}
|
||||
|
||||
/*
|
||||
* If device has _STR, remove 'description' file
|
||||
*/
|
||||
if (acpi_has_method(dev->handle, "_STR")) {
|
||||
kfree(dev->pnp.str_obj);
|
||||
device_remove_file(&dev->dev, &dev_attr_description);
|
||||
}
|
||||
/*
|
||||
* If device has _EJ0, remove 'eject' file.
|
||||
*/
|
||||
if (acpi_has_method(dev->handle, "_EJ0"))
|
||||
device_remove_file(&dev->dev, &dev_attr_eject);
|
||||
|
||||
if (acpi_has_method(dev->handle, "_SUN"))
|
||||
device_remove_file(&dev->dev, &dev_attr_sun);
|
||||
|
||||
if (dev->pnp.unique_id)
|
||||
device_remove_file(&dev->dev, &dev_attr_uid);
|
||||
if (dev->pnp.type.bus_address)
|
||||
device_remove_file(&dev->dev, &dev_attr_adr);
|
||||
device_remove_file(&dev->dev, &dev_attr_modalias);
|
||||
device_remove_file(&dev->dev, &dev_attr_hid);
|
||||
if (acpi_has_method(dev->handle, "_STA"))
|
||||
device_remove_file(&dev->dev, &dev_attr_status);
|
||||
if (dev->handle)
|
||||
device_remove_file(&dev->dev, &dev_attr_path);
|
||||
}
|
||||
|
|
@ -17,10 +17,6 @@
|
|||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along
|
||||
* with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
|
||||
*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
*/
|
||||
|
||||
|
|
|
|||
|
|
@ -22,10 +22,6 @@
|
|||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along
|
||||
* with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
|
||||
*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
*/
|
||||
|
||||
|
|
|
|||
|
|
@ -16,10 +16,6 @@
|
|||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along
|
||||
* with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
|
||||
*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
*/
|
||||
|
||||
|
|
|
|||
|
|
@ -15,10 +15,6 @@
|
|||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
|
|
|
|||
|
|
@ -13,9 +13,6 @@
|
|||
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
||||
* more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along with
|
||||
* this program; if not, write to the Free Software Foundation, Inc.,
|
||||
* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
*/
|
||||
|
||||
#ifndef _ACPI_INTERNAL_H_
|
||||
|
|
@ -70,7 +67,7 @@ void acpi_scan_hotplug_enabled(struct acpi_hotplug_profile *hotplug, bool val);
|
|||
|
||||
#ifdef CONFIG_DEBUG_FS
|
||||
extern struct dentry *acpi_debugfs_dir;
|
||||
int acpi_debugfs_init(void);
|
||||
void acpi_debugfs_init(void);
|
||||
#else
|
||||
static inline void acpi_debugfs_init(void) { return; }
|
||||
#endif
|
||||
|
|
@ -93,11 +90,20 @@ int acpi_device_add(struct acpi_device *device,
|
|||
void (*release)(struct device *));
|
||||
void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
|
||||
int type, unsigned long long sta);
|
||||
int acpi_device_setup_files(struct acpi_device *dev);
|
||||
void acpi_device_remove_files(struct acpi_device *dev);
|
||||
void acpi_device_add_finalize(struct acpi_device *device);
|
||||
void acpi_free_pnp_ids(struct acpi_device_pnp *pnp);
|
||||
bool acpi_device_is_present(struct acpi_device *adev);
|
||||
bool acpi_device_is_battery(struct acpi_device *adev);
|
||||
|
||||
/* --------------------------------------------------------------------------
|
||||
Device Matching and Notification
|
||||
-------------------------------------------------------------------------- */
|
||||
struct acpi_device *acpi_companion_match(const struct device *dev);
|
||||
int __acpi_device_uevent_modalias(struct acpi_device *adev,
|
||||
struct kobj_uevent_env *env);
|
||||
|
||||
/* --------------------------------------------------------------------------
|
||||
Power Resource
|
||||
-------------------------------------------------------------------------- */
|
||||
|
|
|
|||
|
|
@ -15,10 +15,6 @@
|
|||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
*
|
||||
*/
|
||||
|
|
|
|||
|
|
@ -19,10 +19,6 @@
|
|||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
*
|
||||
*/
|
||||
|
|
|
|||
|
|
@ -19,10 +19,6 @@
|
|||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along
|
||||
* with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
|
||||
*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
*/
|
||||
|
||||
|
|
|
|||
|
|
@ -17,10 +17,6 @@
|
|||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along
|
||||
* with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
|
||||
*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
*
|
||||
* TBD:
|
||||
|
|
|
|||
|
|
@ -16,10 +16,6 @@
|
|||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along
|
||||
* with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
|
||||
*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
*/
|
||||
|
||||
|
|
|
|||
|
|
@ -20,10 +20,6 @@
|
|||
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along
|
||||
* with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
|
|
|
|||
|
|
@ -16,10 +16,6 @@
|
|||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along
|
||||
* with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
|
||||
*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
*/
|
||||
|
||||
|
|
|
|||
|
|
@ -21,10 +21,6 @@
|
|||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along
|
||||
* with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
|
||||
*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
*/
|
||||
|
||||
|
|
@ -159,38 +155,28 @@ static int acpi_cpu_soft_notify(struct notifier_block *nfb,
|
|||
return NOTIFY_OK;
|
||||
}
|
||||
|
||||
static struct notifier_block __refdata acpi_cpu_notifier = {
|
||||
static struct notifier_block acpi_cpu_notifier = {
|
||||
.notifier_call = acpi_cpu_soft_notify,
|
||||
};
|
||||
|
||||
static int __acpi_processor_start(struct acpi_device *device)
|
||||
#ifdef CONFIG_ACPI_CPU_FREQ_PSS
|
||||
static int acpi_pss_perf_init(struct acpi_processor *pr,
|
||||
struct acpi_device *device)
|
||||
{
|
||||
struct acpi_processor *pr = acpi_driver_data(device);
|
||||
acpi_status status;
|
||||
int result = 0;
|
||||
|
||||
if (!pr)
|
||||
return -ENODEV;
|
||||
|
||||
if (pr->flags.need_hotplug_init)
|
||||
return 0;
|
||||
|
||||
#ifdef CONFIG_CPU_FREQ
|
||||
acpi_processor_ppc_has_changed(pr, 0);
|
||||
#endif
|
||||
|
||||
acpi_processor_get_throttling_info(pr);
|
||||
|
||||
if (pr->flags.throttling)
|
||||
pr->flags.limit = 1;
|
||||
|
||||
if (!cpuidle_get_driver() || cpuidle_get_driver() == &acpi_idle_driver)
|
||||
acpi_processor_power_init(pr);
|
||||
|
||||
pr->cdev = thermal_cooling_device_register("Processor", device,
|
||||
&processor_cooling_ops);
|
||||
if (IS_ERR(pr->cdev)) {
|
||||
result = PTR_ERR(pr->cdev);
|
||||
goto err_power_exit;
|
||||
return result;
|
||||
}
|
||||
|
||||
dev_dbg(&device->dev, "registered as cooling_device%d\n",
|
||||
|
|
@ -204,6 +190,7 @@ static int __acpi_processor_start(struct acpi_device *device)
|
|||
"Failed to create sysfs link 'thermal_cooling'\n");
|
||||
goto err_thermal_unregister;
|
||||
}
|
||||
|
||||
result = sysfs_create_link(&pr->cdev->device.kobj,
|
||||
&device->dev.kobj,
|
||||
"device");
|
||||
|
|
@ -213,17 +200,61 @@ static int __acpi_processor_start(struct acpi_device *device)
|
|||
goto err_remove_sysfs_thermal;
|
||||
}
|
||||
|
||||
status = acpi_install_notify_handler(device->handle, ACPI_DEVICE_NOTIFY,
|
||||
acpi_processor_notify, device);
|
||||
if (ACPI_SUCCESS(status))
|
||||
return 0;
|
||||
|
||||
sysfs_remove_link(&pr->cdev->device.kobj, "device");
|
||||
err_remove_sysfs_thermal:
|
||||
sysfs_remove_link(&device->dev.kobj, "thermal_cooling");
|
||||
err_thermal_unregister:
|
||||
thermal_cooling_device_unregister(pr->cdev);
|
||||
err_power_exit:
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
static void acpi_pss_perf_exit(struct acpi_processor *pr,
|
||||
struct acpi_device *device)
|
||||
{
|
||||
if (pr->cdev) {
|
||||
sysfs_remove_link(&device->dev.kobj, "thermal_cooling");
|
||||
sysfs_remove_link(&pr->cdev->device.kobj, "device");
|
||||
thermal_cooling_device_unregister(pr->cdev);
|
||||
pr->cdev = NULL;
|
||||
}
|
||||
}
|
||||
#else
|
||||
static inline int acpi_pss_perf_init(struct acpi_processor *pr,
|
||||
struct acpi_device *device)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
static inline void acpi_pss_perf_exit(struct acpi_processor *pr,
|
||||
struct acpi_device *device) {}
|
||||
#endif /* CONFIG_ACPI_CPU_FREQ_PSS */
|
||||
|
||||
static int __acpi_processor_start(struct acpi_device *device)
|
||||
{
|
||||
struct acpi_processor *pr = acpi_driver_data(device);
|
||||
acpi_status status;
|
||||
int result = 0;
|
||||
|
||||
if (!pr)
|
||||
return -ENODEV;
|
||||
|
||||
if (pr->flags.need_hotplug_init)
|
||||
return 0;
|
||||
|
||||
if (!cpuidle_get_driver() || cpuidle_get_driver() == &acpi_idle_driver)
|
||||
acpi_processor_power_init(pr);
|
||||
|
||||
result = acpi_pss_perf_init(pr, device);
|
||||
if (result)
|
||||
goto err_power_exit;
|
||||
|
||||
status = acpi_install_notify_handler(device->handle, ACPI_DEVICE_NOTIFY,
|
||||
acpi_processor_notify, device);
|
||||
if (ACPI_SUCCESS(status))
|
||||
return 0;
|
||||
|
||||
err_power_exit:
|
||||
acpi_processor_power_exit(pr);
|
||||
return result;
|
||||
}
|
||||
|
|
@ -252,15 +283,10 @@ static int acpi_processor_stop(struct device *dev)
|
|||
pr = acpi_driver_data(device);
|
||||
if (!pr)
|
||||
return 0;
|
||||
|
||||
acpi_processor_power_exit(pr);
|
||||
|
||||
if (pr->cdev) {
|
||||
sysfs_remove_link(&device->dev.kobj, "thermal_cooling");
|
||||
sysfs_remove_link(&pr->cdev->device.kobj, "device");
|
||||
thermal_cooling_device_unregister(pr->cdev);
|
||||
pr->cdev = NULL;
|
||||
}
|
||||
acpi_pss_perf_exit(pr, device);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -21,10 +21,6 @@
|
|||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along
|
||||
* with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
|
||||
*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
*/
|
||||
|
||||
|
|
|
|||
|
|
@ -20,10 +20,6 @@
|
|||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along
|
||||
* with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
|
||||
*
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
|
|
|
|||
|
|
@ -19,10 +19,6 @@
|
|||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along
|
||||
* with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
|
||||
*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
*/
|
||||
|
||||
|
|
|
|||
|
|
@ -19,10 +19,6 @@
|
|||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along
|
||||
* with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
|
||||
*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
*/
|
||||
|
||||
|
|
|
|||
|
|
@ -15,10 +15,6 @@
|
|||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along
|
||||
* with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
|
||||
*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
*/
|
||||
|
||||
|
|
|
|||
|
|
@ -17,10 +17,6 @@
|
|||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along
|
||||
* with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
|
||||
*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
*/
|
||||
|
||||
|
|
|
|||
|
|
@ -115,263 +115,6 @@ int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler,
|
|||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* create_pnp_modalias - Create hid/cid(s) string for modalias and uevent
|
||||
* @acpi_dev: ACPI device object.
|
||||
* @modalias: Buffer to print into.
|
||||
* @size: Size of the buffer.
|
||||
*
|
||||
* Creates hid/cid(s) string needed for modalias and uevent
|
||||
* e.g. on a device with hid:IBM0001 and cid:ACPI0001 you get:
|
||||
* char *modalias: "acpi:IBM0001:ACPI0001"
|
||||
* Return: 0: no _HID and no _CID
|
||||
* -EINVAL: output error
|
||||
* -ENOMEM: output is truncated
|
||||
*/
|
||||
static int create_pnp_modalias(struct acpi_device *acpi_dev, char *modalias,
|
||||
int size)
|
||||
{
|
||||
int len;
|
||||
int count;
|
||||
struct acpi_hardware_id *id;
|
||||
|
||||
/*
|
||||
* Since we skip ACPI_DT_NAMESPACE_HID from the modalias below, 0 should
|
||||
* be returned if ACPI_DT_NAMESPACE_HID is the only ACPI/PNP ID in the
|
||||
* device's list.
|
||||
*/
|
||||
count = 0;
|
||||
list_for_each_entry(id, &acpi_dev->pnp.ids, list)
|
||||
if (strcmp(id->id, ACPI_DT_NAMESPACE_HID))
|
||||
count++;
|
||||
|
||||
if (!count)
|
||||
return 0;
|
||||
|
||||
len = snprintf(modalias, size, "acpi:");
|
||||
if (len <= 0)
|
||||
return len;
|
||||
|
||||
size -= len;
|
||||
|
||||
list_for_each_entry(id, &acpi_dev->pnp.ids, list) {
|
||||
if (!strcmp(id->id, ACPI_DT_NAMESPACE_HID))
|
||||
continue;
|
||||
|
||||
count = snprintf(&modalias[len], size, "%s:", id->id);
|
||||
if (count < 0)
|
||||
return -EINVAL;
|
||||
|
||||
if (count >= size)
|
||||
return -ENOMEM;
|
||||
|
||||
len += count;
|
||||
size -= count;
|
||||
}
|
||||
modalias[len] = '\0';
|
||||
return len;
|
||||
}
|
||||
|
||||
/**
|
||||
* create_of_modalias - Creates DT compatible string for modalias and uevent
|
||||
* @acpi_dev: ACPI device object.
|
||||
* @modalias: Buffer to print into.
|
||||
* @size: Size of the buffer.
|
||||
*
|
||||
* Expose DT compatible modalias as of:NnameTCcompatible. This function should
|
||||
* only be called for devices having ACPI_DT_NAMESPACE_HID in their list of
|
||||
* ACPI/PNP IDs.
|
||||
*/
|
||||
static int create_of_modalias(struct acpi_device *acpi_dev, char *modalias,
|
||||
int size)
|
||||
{
|
||||
struct acpi_buffer buf = { ACPI_ALLOCATE_BUFFER };
|
||||
const union acpi_object *of_compatible, *obj;
|
||||
int len, count;
|
||||
int i, nval;
|
||||
char *c;
|
||||
|
||||
acpi_get_name(acpi_dev->handle, ACPI_SINGLE_NAME, &buf);
|
||||
/* DT strings are all in lower case */
|
||||
for (c = buf.pointer; *c != '\0'; c++)
|
||||
*c = tolower(*c);
|
||||
|
||||
len = snprintf(modalias, size, "of:N%sT", (char *)buf.pointer);
|
||||
ACPI_FREE(buf.pointer);
|
||||
|
||||
if (len <= 0)
|
||||
return len;
|
||||
|
||||
of_compatible = acpi_dev->data.of_compatible;
|
||||
if (of_compatible->type == ACPI_TYPE_PACKAGE) {
|
||||
nval = of_compatible->package.count;
|
||||
obj = of_compatible->package.elements;
|
||||
} else { /* Must be ACPI_TYPE_STRING. */
|
||||
nval = 1;
|
||||
obj = of_compatible;
|
||||
}
|
||||
for (i = 0; i < nval; i++, obj++) {
|
||||
count = snprintf(&modalias[len], size, "C%s",
|
||||
obj->string.pointer);
|
||||
if (count < 0)
|
||||
return -EINVAL;
|
||||
|
||||
if (count >= size)
|
||||
return -ENOMEM;
|
||||
|
||||
len += count;
|
||||
size -= count;
|
||||
}
|
||||
modalias[len] = '\0';
|
||||
return len;
|
||||
}
|
||||
|
||||
/*
|
||||
* acpi_companion_match() - Can we match via ACPI companion device
|
||||
* @dev: Device in question
|
||||
*
|
||||
* Check if the given device has an ACPI companion and if that companion has
|
||||
* a valid list of PNP IDs, and if the device is the first (primary) physical
|
||||
* device associated with it. Return the companion pointer if that's the case
|
||||
* or NULL otherwise.
|
||||
*
|
||||
* If multiple physical devices are attached to a single ACPI companion, we need
|
||||
* to be careful. The usage scenario for this kind of relationship is that all
|
||||
* of the physical devices in question use resources provided by the ACPI
|
||||
* companion. A typical case is an MFD device where all the sub-devices share
|
||||
* the parent's ACPI companion. In such cases we can only allow the primary
|
||||
* (first) physical device to be matched with the help of the companion's PNP
|
||||
* IDs.
|
||||
*
|
||||
* Additional physical devices sharing the ACPI companion can still use
|
||||
* resources available from it but they will be matched normally using functions
|
||||
* provided by their bus types (and analogously for their modalias).
|
||||
*/
|
||||
static struct acpi_device *acpi_companion_match(const struct device *dev)
|
||||
{
|
||||
struct acpi_device *adev;
|
||||
struct mutex *physical_node_lock;
|
||||
|
||||
adev = ACPI_COMPANION(dev);
|
||||
if (!adev)
|
||||
return NULL;
|
||||
|
||||
if (list_empty(&adev->pnp.ids))
|
||||
return NULL;
|
||||
|
||||
physical_node_lock = &adev->physical_node_lock;
|
||||
mutex_lock(physical_node_lock);
|
||||
if (list_empty(&adev->physical_node_list)) {
|
||||
adev = NULL;
|
||||
} else {
|
||||
const struct acpi_device_physical_node *node;
|
||||
|
||||
node = list_first_entry(&adev->physical_node_list,
|
||||
struct acpi_device_physical_node, node);
|
||||
if (node->dev != dev)
|
||||
adev = NULL;
|
||||
}
|
||||
mutex_unlock(physical_node_lock);
|
||||
|
||||
return adev;
|
||||
}
|
||||
|
||||
static int __acpi_device_uevent_modalias(struct acpi_device *adev,
|
||||
struct kobj_uevent_env *env)
|
||||
{
|
||||
int len;
|
||||
|
||||
if (!adev)
|
||||
return -ENODEV;
|
||||
|
||||
if (list_empty(&adev->pnp.ids))
|
||||
return 0;
|
||||
|
||||
if (add_uevent_var(env, "MODALIAS="))
|
||||
return -ENOMEM;
|
||||
|
||||
len = create_pnp_modalias(adev, &env->buf[env->buflen - 1],
|
||||
sizeof(env->buf) - env->buflen);
|
||||
if (len < 0)
|
||||
return len;
|
||||
|
||||
env->buflen += len;
|
||||
if (!adev->data.of_compatible)
|
||||
return 0;
|
||||
|
||||
if (len > 0 && add_uevent_var(env, "MODALIAS="))
|
||||
return -ENOMEM;
|
||||
|
||||
len = create_of_modalias(adev, &env->buf[env->buflen - 1],
|
||||
sizeof(env->buf) - env->buflen);
|
||||
if (len < 0)
|
||||
return len;
|
||||
|
||||
env->buflen += len;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Creates uevent modalias field for ACPI enumerated devices.
|
||||
* Because the other buses does not support ACPI HIDs & CIDs.
|
||||
* e.g. for a device with hid:IBM0001 and cid:ACPI0001 you get:
|
||||
* "acpi:IBM0001:ACPI0001"
|
||||
*/
|
||||
int acpi_device_uevent_modalias(struct device *dev, struct kobj_uevent_env *env)
|
||||
{
|
||||
return __acpi_device_uevent_modalias(acpi_companion_match(dev), env);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(acpi_device_uevent_modalias);
|
||||
|
||||
static int __acpi_device_modalias(struct acpi_device *adev, char *buf, int size)
|
||||
{
|
||||
int len, count;
|
||||
|
||||
if (!adev)
|
||||
return -ENODEV;
|
||||
|
||||
if (list_empty(&adev->pnp.ids))
|
||||
return 0;
|
||||
|
||||
len = create_pnp_modalias(adev, buf, size - 1);
|
||||
if (len < 0) {
|
||||
return len;
|
||||
} else if (len > 0) {
|
||||
buf[len++] = '\n';
|
||||
size -= len;
|
||||
}
|
||||
if (!adev->data.of_compatible)
|
||||
return len;
|
||||
|
||||
count = create_of_modalias(adev, buf + len, size - 1);
|
||||
if (count < 0) {
|
||||
return count;
|
||||
} else if (count > 0) {
|
||||
len += count;
|
||||
buf[len++] = '\n';
|
||||
}
|
||||
|
||||
return len;
|
||||
}
|
||||
|
||||
/*
|
||||
* Creates modalias sysfs attribute for ACPI enumerated devices.
|
||||
* Because the other buses does not support ACPI HIDs & CIDs.
|
||||
* e.g. for a device with hid:IBM0001 and cid:ACPI0001 you get:
|
||||
* "acpi:IBM0001:ACPI0001"
|
||||
*/
|
||||
int acpi_device_modalias(struct device *dev, char *buf, int size)
|
||||
{
|
||||
return __acpi_device_modalias(acpi_companion_match(dev), buf, size);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(acpi_device_modalias);
|
||||
|
||||
static ssize_t
|
||||
acpi_device_modalias_show(struct device *dev, struct device_attribute *attr, char *buf) {
|
||||
return __acpi_device_modalias(to_acpi_device(dev), buf, 1024);
|
||||
}
|
||||
static DEVICE_ATTR(modalias, 0444, acpi_device_modalias_show, NULL);
|
||||
|
||||
bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent)
|
||||
{
|
||||
|
|
@ -701,423 +444,6 @@ void acpi_device_hotplug(struct acpi_device *adev, u32 src)
|
|||
unlock_device_hotplug();
|
||||
}
|
||||
|
||||
static ssize_t real_power_state_show(struct device *dev,
|
||||
struct device_attribute *attr, char *buf)
|
||||
{
|
||||
struct acpi_device *adev = to_acpi_device(dev);
|
||||
int state;
|
||||
int ret;
|
||||
|
||||
ret = acpi_device_get_power(adev, &state);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
return sprintf(buf, "%s\n", acpi_power_state_string(state));
|
||||
}
|
||||
|
||||
static DEVICE_ATTR(real_power_state, 0444, real_power_state_show, NULL);
|
||||
|
||||
static ssize_t power_state_show(struct device *dev,
|
||||
struct device_attribute *attr, char *buf)
|
||||
{
|
||||
struct acpi_device *adev = to_acpi_device(dev);
|
||||
|
||||
return sprintf(buf, "%s\n", acpi_power_state_string(adev->power.state));
|
||||
}
|
||||
|
||||
static DEVICE_ATTR(power_state, 0444, power_state_show, NULL);
|
||||
|
||||
static ssize_t
|
||||
acpi_eject_store(struct device *d, struct device_attribute *attr,
|
||||
const char *buf, size_t count)
|
||||
{
|
||||
struct acpi_device *acpi_device = to_acpi_device(d);
|
||||
acpi_object_type not_used;
|
||||
acpi_status status;
|
||||
|
||||
if (!count || buf[0] != '1')
|
||||
return -EINVAL;
|
||||
|
||||
if ((!acpi_device->handler || !acpi_device->handler->hotplug.enabled)
|
||||
&& !acpi_device->driver)
|
||||
return -ENODEV;
|
||||
|
||||
status = acpi_get_type(acpi_device->handle, ¬_used);
|
||||
if (ACPI_FAILURE(status) || !acpi_device->flags.ejectable)
|
||||
return -ENODEV;
|
||||
|
||||
get_device(&acpi_device->dev);
|
||||
status = acpi_hotplug_schedule(acpi_device, ACPI_OST_EC_OSPM_EJECT);
|
||||
if (ACPI_SUCCESS(status))
|
||||
return count;
|
||||
|
||||
put_device(&acpi_device->dev);
|
||||
acpi_evaluate_ost(acpi_device->handle, ACPI_OST_EC_OSPM_EJECT,
|
||||
ACPI_OST_SC_NON_SPECIFIC_FAILURE, NULL);
|
||||
return status == AE_NO_MEMORY ? -ENOMEM : -EAGAIN;
|
||||
}
|
||||
|
||||
static DEVICE_ATTR(eject, 0200, NULL, acpi_eject_store);
|
||||
|
||||
static ssize_t
|
||||
acpi_device_hid_show(struct device *dev, struct device_attribute *attr, char *buf) {
|
||||
struct acpi_device *acpi_dev = to_acpi_device(dev);
|
||||
|
||||
return sprintf(buf, "%s\n", acpi_device_hid(acpi_dev));
|
||||
}
|
||||
static DEVICE_ATTR(hid, 0444, acpi_device_hid_show, NULL);
|
||||
|
||||
static ssize_t acpi_device_uid_show(struct device *dev,
|
||||
struct device_attribute *attr, char *buf)
|
||||
{
|
||||
struct acpi_device *acpi_dev = to_acpi_device(dev);
|
||||
|
||||
return sprintf(buf, "%s\n", acpi_dev->pnp.unique_id);
|
||||
}
|
||||
static DEVICE_ATTR(uid, 0444, acpi_device_uid_show, NULL);
|
||||
|
||||
static ssize_t acpi_device_adr_show(struct device *dev,
|
||||
struct device_attribute *attr, char *buf)
|
||||
{
|
||||
struct acpi_device *acpi_dev = to_acpi_device(dev);
|
||||
|
||||
return sprintf(buf, "0x%08x\n",
|
||||
(unsigned int)(acpi_dev->pnp.bus_address));
|
||||
}
|
||||
static DEVICE_ATTR(adr, 0444, acpi_device_adr_show, NULL);
|
||||
|
||||
static ssize_t
|
||||
acpi_device_path_show(struct device *dev, struct device_attribute *attr, char *buf) {
|
||||
struct acpi_device *acpi_dev = to_acpi_device(dev);
|
||||
struct acpi_buffer path = {ACPI_ALLOCATE_BUFFER, NULL};
|
||||
int result;
|
||||
|
||||
result = acpi_get_name(acpi_dev->handle, ACPI_FULL_PATHNAME, &path);
|
||||
if (result)
|
||||
goto end;
|
||||
|
||||
result = sprintf(buf, "%s\n", (char*)path.pointer);
|
||||
kfree(path.pointer);
|
||||
end:
|
||||
return result;
|
||||
}
|
||||
static DEVICE_ATTR(path, 0444, acpi_device_path_show, NULL);
|
||||
|
||||
/* sysfs file that shows description text from the ACPI _STR method */
|
||||
static ssize_t description_show(struct device *dev,
|
||||
struct device_attribute *attr,
|
||||
char *buf) {
|
||||
struct acpi_device *acpi_dev = to_acpi_device(dev);
|
||||
int result;
|
||||
|
||||
if (acpi_dev->pnp.str_obj == NULL)
|
||||
return 0;
|
||||
|
||||
/*
|
||||
* The _STR object contains a Unicode identifier for a device.
|
||||
* We need to convert to utf-8 so it can be displayed.
|
||||
*/
|
||||
result = utf16s_to_utf8s(
|
||||
(wchar_t *)acpi_dev->pnp.str_obj->buffer.pointer,
|
||||
acpi_dev->pnp.str_obj->buffer.length,
|
||||
UTF16_LITTLE_ENDIAN, buf,
|
||||
PAGE_SIZE);
|
||||
|
||||
buf[result++] = '\n';
|
||||
|
||||
return result;
|
||||
}
|
||||
static DEVICE_ATTR(description, 0444, description_show, NULL);
|
||||
|
||||
static ssize_t
|
||||
acpi_device_sun_show(struct device *dev, struct device_attribute *attr,
|
||||
char *buf) {
|
||||
struct acpi_device *acpi_dev = to_acpi_device(dev);
|
||||
acpi_status status;
|
||||
unsigned long long sun;
|
||||
|
||||
status = acpi_evaluate_integer(acpi_dev->handle, "_SUN", NULL, &sun);
|
||||
if (ACPI_FAILURE(status))
|
||||
return -ENODEV;
|
||||
|
||||
return sprintf(buf, "%llu\n", sun);
|
||||
}
|
||||
static DEVICE_ATTR(sun, 0444, acpi_device_sun_show, NULL);
|
||||
|
||||
static ssize_t status_show(struct device *dev, struct device_attribute *attr,
|
||||
char *buf) {
|
||||
struct acpi_device *acpi_dev = to_acpi_device(dev);
|
||||
acpi_status status;
|
||||
unsigned long long sta;
|
||||
|
||||
status = acpi_evaluate_integer(acpi_dev->handle, "_STA", NULL, &sta);
|
||||
if (ACPI_FAILURE(status))
|
||||
return -ENODEV;
|
||||
|
||||
return sprintf(buf, "%llu\n", sta);
|
||||
}
|
||||
static DEVICE_ATTR_RO(status);
|
||||
|
||||
static int acpi_device_setup_files(struct acpi_device *dev)
|
||||
{
|
||||
struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
|
||||
acpi_status status;
|
||||
int result = 0;
|
||||
|
||||
/*
|
||||
* Devices gotten from FADT don't have a "path" attribute
|
||||
*/
|
||||
if (dev->handle) {
|
||||
result = device_create_file(&dev->dev, &dev_attr_path);
|
||||
if (result)
|
||||
goto end;
|
||||
}
|
||||
|
||||
if (!list_empty(&dev->pnp.ids)) {
|
||||
result = device_create_file(&dev->dev, &dev_attr_hid);
|
||||
if (result)
|
||||
goto end;
|
||||
|
||||
result = device_create_file(&dev->dev, &dev_attr_modalias);
|
||||
if (result)
|
||||
goto end;
|
||||
}
|
||||
|
||||
/*
|
||||
* If device has _STR, 'description' file is created
|
||||
*/
|
||||
if (acpi_has_method(dev->handle, "_STR")) {
|
||||
status = acpi_evaluate_object(dev->handle, "_STR",
|
||||
NULL, &buffer);
|
||||
if (ACPI_FAILURE(status))
|
||||
buffer.pointer = NULL;
|
||||
dev->pnp.str_obj = buffer.pointer;
|
||||
result = device_create_file(&dev->dev, &dev_attr_description);
|
||||
if (result)
|
||||
goto end;
|
||||
}
|
||||
|
||||
if (dev->pnp.type.bus_address)
|
||||
result = device_create_file(&dev->dev, &dev_attr_adr);
|
||||
if (dev->pnp.unique_id)
|
||||
result = device_create_file(&dev->dev, &dev_attr_uid);
|
||||
|
||||
if (acpi_has_method(dev->handle, "_SUN")) {
|
||||
result = device_create_file(&dev->dev, &dev_attr_sun);
|
||||
if (result)
|
||||
goto end;
|
||||
}
|
||||
|
||||
if (acpi_has_method(dev->handle, "_STA")) {
|
||||
result = device_create_file(&dev->dev, &dev_attr_status);
|
||||
if (result)
|
||||
goto end;
|
||||
}
|
||||
|
||||
/*
|
||||
* If device has _EJ0, 'eject' file is created that is used to trigger
|
||||
* hot-removal function from userland.
|
||||
*/
|
||||
if (acpi_has_method(dev->handle, "_EJ0")) {
|
||||
result = device_create_file(&dev->dev, &dev_attr_eject);
|
||||
if (result)
|
||||
return result;
|
||||
}
|
||||
|
||||
if (dev->flags.power_manageable) {
|
||||
result = device_create_file(&dev->dev, &dev_attr_power_state);
|
||||
if (result)
|
||||
return result;
|
||||
|
||||
if (dev->power.flags.power_resources)
|
||||
result = device_create_file(&dev->dev,
|
||||
&dev_attr_real_power_state);
|
||||
}
|
||||
|
||||
end:
|
||||
return result;
|
||||
}
|
||||
|
||||
static void acpi_device_remove_files(struct acpi_device *dev)
|
||||
{
|
||||
if (dev->flags.power_manageable) {
|
||||
device_remove_file(&dev->dev, &dev_attr_power_state);
|
||||
if (dev->power.flags.power_resources)
|
||||
device_remove_file(&dev->dev,
|
||||
&dev_attr_real_power_state);
|
||||
}
|
||||
|
||||
/*
|
||||
* If device has _STR, remove 'description' file
|
||||
*/
|
||||
if (acpi_has_method(dev->handle, "_STR")) {
|
||||
kfree(dev->pnp.str_obj);
|
||||
device_remove_file(&dev->dev, &dev_attr_description);
|
||||
}
|
||||
/*
|
||||
* If device has _EJ0, remove 'eject' file.
|
||||
*/
|
||||
if (acpi_has_method(dev->handle, "_EJ0"))
|
||||
device_remove_file(&dev->dev, &dev_attr_eject);
|
||||
|
||||
if (acpi_has_method(dev->handle, "_SUN"))
|
||||
device_remove_file(&dev->dev, &dev_attr_sun);
|
||||
|
||||
if (dev->pnp.unique_id)
|
||||
device_remove_file(&dev->dev, &dev_attr_uid);
|
||||
if (dev->pnp.type.bus_address)
|
||||
device_remove_file(&dev->dev, &dev_attr_adr);
|
||||
device_remove_file(&dev->dev, &dev_attr_modalias);
|
||||
device_remove_file(&dev->dev, &dev_attr_hid);
|
||||
if (acpi_has_method(dev->handle, "_STA"))
|
||||
device_remove_file(&dev->dev, &dev_attr_status);
|
||||
if (dev->handle)
|
||||
device_remove_file(&dev->dev, &dev_attr_path);
|
||||
}
|
||||
/* --------------------------------------------------------------------------
|
||||
ACPI Bus operations
|
||||
-------------------------------------------------------------------------- */
|
||||
|
||||
/**
|
||||
* acpi_of_match_device - Match device object using the "compatible" property.
|
||||
* @adev: ACPI device object to match.
|
||||
* @of_match_table: List of device IDs to match against.
|
||||
*
|
||||
* If @dev has an ACPI companion which has ACPI_DT_NAMESPACE_HID in its list of
|
||||
* identifiers and a _DSD object with the "compatible" property, use that
|
||||
* property to match against the given list of identifiers.
|
||||
*/
|
||||
static bool acpi_of_match_device(struct acpi_device *adev,
|
||||
const struct of_device_id *of_match_table)
|
||||
{
|
||||
const union acpi_object *of_compatible, *obj;
|
||||
int i, nval;
|
||||
|
||||
if (!adev)
|
||||
return false;
|
||||
|
||||
of_compatible = adev->data.of_compatible;
|
||||
if (!of_match_table || !of_compatible)
|
||||
return false;
|
||||
|
||||
if (of_compatible->type == ACPI_TYPE_PACKAGE) {
|
||||
nval = of_compatible->package.count;
|
||||
obj = of_compatible->package.elements;
|
||||
} else { /* Must be ACPI_TYPE_STRING. */
|
||||
nval = 1;
|
||||
obj = of_compatible;
|
||||
}
|
||||
/* Now we can look for the driver DT compatible strings */
|
||||
for (i = 0; i < nval; i++, obj++) {
|
||||
const struct of_device_id *id;
|
||||
|
||||
for (id = of_match_table; id->compatible[0]; id++)
|
||||
if (!strcasecmp(obj->string.pointer, id->compatible))
|
||||
return true;
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
static bool __acpi_match_device_cls(const struct acpi_device_id *id,
|
||||
struct acpi_hardware_id *hwid)
|
||||
{
|
||||
int i, msk, byte_shift;
|
||||
char buf[3];
|
||||
|
||||
if (!id->cls)
|
||||
return false;
|
||||
|
||||
/* Apply class-code bitmask, before checking each class-code byte */
|
||||
for (i = 1; i <= 3; i++) {
|
||||
byte_shift = 8 * (3 - i);
|
||||
msk = (id->cls_msk >> byte_shift) & 0xFF;
|
||||
if (!msk)
|
||||
continue;
|
||||
|
||||
sprintf(buf, "%02x", (id->cls >> byte_shift) & msk);
|
||||
if (strncmp(buf, &hwid->id[(i - 1) * 2], 2))
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
static const struct acpi_device_id *__acpi_match_device(
|
||||
struct acpi_device *device,
|
||||
const struct acpi_device_id *ids,
|
||||
const struct of_device_id *of_ids)
|
||||
{
|
||||
const struct acpi_device_id *id;
|
||||
struct acpi_hardware_id *hwid;
|
||||
|
||||
/*
|
||||
* If the device is not present, it is unnecessary to load device
|
||||
* driver for it.
|
||||
*/
|
||||
if (!device || !device->status.present)
|
||||
return NULL;
|
||||
|
||||
list_for_each_entry(hwid, &device->pnp.ids, list) {
|
||||
/* First, check the ACPI/PNP IDs provided by the caller. */
|
||||
for (id = ids; id->id[0] || id->cls; id++) {
|
||||
if (id->id[0] && !strcmp((char *) id->id, hwid->id))
|
||||
return id;
|
||||
else if (id->cls && __acpi_match_device_cls(id, hwid))
|
||||
return id;
|
||||
}
|
||||
|
||||
/*
|
||||
* Next, check ACPI_DT_NAMESPACE_HID and try to match the
|
||||
* "compatible" property if found.
|
||||
*
|
||||
* The id returned by the below is not valid, but the only
|
||||
* caller passing non-NULL of_ids here is only interested in
|
||||
* whether or not the return value is NULL.
|
||||
*/
|
||||
if (!strcmp(ACPI_DT_NAMESPACE_HID, hwid->id)
|
||||
&& acpi_of_match_device(device, of_ids))
|
||||
return id;
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/**
|
||||
* acpi_match_device - Match a struct device against a given list of ACPI IDs
|
||||
* @ids: Array of struct acpi_device_id object to match against.
|
||||
* @dev: The device structure to match.
|
||||
*
|
||||
* Check if @dev has a valid ACPI handle and if there is a struct acpi_device
|
||||
* object for that handle and use that object to match against a given list of
|
||||
* device IDs.
|
||||
*
|
||||
* Return a pointer to the first matching ID on success or %NULL on failure.
|
||||
*/
|
||||
const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
|
||||
const struct device *dev)
|
||||
{
|
||||
return __acpi_match_device(acpi_companion_match(dev), ids, NULL);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(acpi_match_device);
|
||||
|
||||
int acpi_match_device_ids(struct acpi_device *device,
|
||||
const struct acpi_device_id *ids)
|
||||
{
|
||||
return __acpi_match_device(device, ids, NULL) ? 0 : -ENOENT;
|
||||
}
|
||||
EXPORT_SYMBOL(acpi_match_device_ids);
|
||||
|
||||
bool acpi_driver_match_device(struct device *dev,
|
||||
const struct device_driver *drv)
|
||||
{
|
||||
if (!drv->acpi_match_table)
|
||||
return acpi_of_match_device(ACPI_COMPANION(dev),
|
||||
drv->of_match_table);
|
||||
|
||||
return !!__acpi_match_device(acpi_companion_match(dev),
|
||||
drv->acpi_match_table, drv->of_match_table);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(acpi_driver_match_device);
|
||||
|
||||
static void acpi_free_power_resources_lists(struct acpi_device *device)
|
||||
{
|
||||
int i;
|
||||
|
|
@ -1144,144 +470,6 @@ static void acpi_device_release(struct device *dev)
|
|||
kfree(acpi_dev);
|
||||
}
|
||||
|
||||
static int acpi_bus_match(struct device *dev, struct device_driver *drv)
|
||||
{
|
||||
struct acpi_device *acpi_dev = to_acpi_device(dev);
|
||||
struct acpi_driver *acpi_drv = to_acpi_driver(drv);
|
||||
|
||||
return acpi_dev->flags.match_driver
|
||||
&& !acpi_match_device_ids(acpi_dev, acpi_drv->ids);
|
||||
}
|
||||
|
||||
static int acpi_device_uevent(struct device *dev, struct kobj_uevent_env *env)
|
||||
{
|
||||
return __acpi_device_uevent_modalias(to_acpi_device(dev), env);
|
||||
}
|
||||
|
||||
static void acpi_device_notify(acpi_handle handle, u32 event, void *data)
|
||||
{
|
||||
struct acpi_device *device = data;
|
||||
|
||||
device->driver->ops.notify(device, event);
|
||||
}
|
||||
|
||||
static void acpi_device_notify_fixed(void *data)
|
||||
{
|
||||
struct acpi_device *device = data;
|
||||
|
||||
/* Fixed hardware devices have no handles */
|
||||
acpi_device_notify(NULL, ACPI_FIXED_HARDWARE_EVENT, device);
|
||||
}
|
||||
|
||||
static u32 acpi_device_fixed_event(void *data)
|
||||
{
|
||||
acpi_os_execute(OSL_NOTIFY_HANDLER, acpi_device_notify_fixed, data);
|
||||
return ACPI_INTERRUPT_HANDLED;
|
||||
}
|
||||
|
||||
static int acpi_device_install_notify_handler(struct acpi_device *device)
|
||||
{
|
||||
acpi_status status;
|
||||
|
||||
if (device->device_type == ACPI_BUS_TYPE_POWER_BUTTON)
|
||||
status =
|
||||
acpi_install_fixed_event_handler(ACPI_EVENT_POWER_BUTTON,
|
||||
acpi_device_fixed_event,
|
||||
device);
|
||||
else if (device->device_type == ACPI_BUS_TYPE_SLEEP_BUTTON)
|
||||
status =
|
||||
acpi_install_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON,
|
||||
acpi_device_fixed_event,
|
||||
device);
|
||||
else
|
||||
status = acpi_install_notify_handler(device->handle,
|
||||
ACPI_DEVICE_NOTIFY,
|
||||
acpi_device_notify,
|
||||
device);
|
||||
|
||||
if (ACPI_FAILURE(status))
|
||||
return -EINVAL;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void acpi_device_remove_notify_handler(struct acpi_device *device)
|
||||
{
|
||||
if (device->device_type == ACPI_BUS_TYPE_POWER_BUTTON)
|
||||
acpi_remove_fixed_event_handler(ACPI_EVENT_POWER_BUTTON,
|
||||
acpi_device_fixed_event);
|
||||
else if (device->device_type == ACPI_BUS_TYPE_SLEEP_BUTTON)
|
||||
acpi_remove_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON,
|
||||
acpi_device_fixed_event);
|
||||
else
|
||||
acpi_remove_notify_handler(device->handle, ACPI_DEVICE_NOTIFY,
|
||||
acpi_device_notify);
|
||||
}
|
||||
|
||||
static int acpi_device_probe(struct device *dev)
|
||||
{
|
||||
struct acpi_device *acpi_dev = to_acpi_device(dev);
|
||||
struct acpi_driver *acpi_drv = to_acpi_driver(dev->driver);
|
||||
int ret;
|
||||
|
||||
if (acpi_dev->handler && !acpi_is_pnp_device(acpi_dev))
|
||||
return -EINVAL;
|
||||
|
||||
if (!acpi_drv->ops.add)
|
||||
return -ENOSYS;
|
||||
|
||||
ret = acpi_drv->ops.add(acpi_dev);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
acpi_dev->driver = acpi_drv;
|
||||
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
|
||||
"Driver [%s] successfully bound to device [%s]\n",
|
||||
acpi_drv->name, acpi_dev->pnp.bus_id));
|
||||
|
||||
if (acpi_drv->ops.notify) {
|
||||
ret = acpi_device_install_notify_handler(acpi_dev);
|
||||
if (ret) {
|
||||
if (acpi_drv->ops.remove)
|
||||
acpi_drv->ops.remove(acpi_dev);
|
||||
|
||||
acpi_dev->driver = NULL;
|
||||
acpi_dev->driver_data = NULL;
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
|
||||
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found driver [%s] for device [%s]\n",
|
||||
acpi_drv->name, acpi_dev->pnp.bus_id));
|
||||
get_device(dev);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int acpi_device_remove(struct device * dev)
|
||||
{
|
||||
struct acpi_device *acpi_dev = to_acpi_device(dev);
|
||||
struct acpi_driver *acpi_drv = acpi_dev->driver;
|
||||
|
||||
if (acpi_drv) {
|
||||
if (acpi_drv->ops.notify)
|
||||
acpi_device_remove_notify_handler(acpi_dev);
|
||||
if (acpi_drv->ops.remove)
|
||||
acpi_drv->ops.remove(acpi_dev);
|
||||
}
|
||||
acpi_dev->driver = NULL;
|
||||
acpi_dev->driver_data = NULL;
|
||||
|
||||
put_device(dev);
|
||||
return 0;
|
||||
}
|
||||
|
||||
struct bus_type acpi_bus_type = {
|
||||
.name = "acpi",
|
||||
.match = acpi_bus_match,
|
||||
.probe = acpi_device_probe,
|
||||
.remove = acpi_device_remove,
|
||||
.uevent = acpi_device_uevent,
|
||||
};
|
||||
|
||||
static void acpi_device_del(struct acpi_device *device)
|
||||
{
|
||||
mutex_lock(&acpi_device_lock);
|
||||
|
|
@ -1528,47 +716,6 @@ struct acpi_device *acpi_get_next_child(struct device *dev,
|
|||
return next == head ? NULL : list_entry(next, struct acpi_device, node);
|
||||
}
|
||||
|
||||
/* --------------------------------------------------------------------------
|
||||
Driver Management
|
||||
-------------------------------------------------------------------------- */
|
||||
/**
|
||||
* acpi_bus_register_driver - register a driver with the ACPI bus
|
||||
* @driver: driver being registered
|
||||
*
|
||||
* Registers a driver with the ACPI bus. Searches the namespace for all
|
||||
* devices that match the driver's criteria and binds. Returns zero for
|
||||
* success or a negative error status for failure.
|
||||
*/
|
||||
int acpi_bus_register_driver(struct acpi_driver *driver)
|
||||
{
|
||||
int ret;
|
||||
|
||||
if (acpi_disabled)
|
||||
return -ENODEV;
|
||||
driver->drv.name = driver->name;
|
||||
driver->drv.bus = &acpi_bus_type;
|
||||
driver->drv.owner = driver->owner;
|
||||
|
||||
ret = driver_register(&driver->drv);
|
||||
return ret;
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(acpi_bus_register_driver);
|
||||
|
||||
/**
|
||||
* acpi_bus_unregister_driver - unregisters a driver with the ACPI bus
|
||||
* @driver: driver to unregister
|
||||
*
|
||||
* Unregisters a driver with the ACPI bus. Searches the namespace for all
|
||||
* devices that match the driver's criteria and unbinds.
|
||||
*/
|
||||
void acpi_bus_unregister_driver(struct acpi_driver *driver)
|
||||
{
|
||||
driver_unregister(&driver->drv);
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(acpi_bus_unregister_driver);
|
||||
|
||||
/* --------------------------------------------------------------------------
|
||||
Device Enumeration
|
||||
-------------------------------------------------------------------------- */
|
||||
|
|
@ -2744,12 +1891,6 @@ int __init acpi_scan_init(void)
|
|||
{
|
||||
int result;
|
||||
|
||||
result = bus_register(&acpi_bus_type);
|
||||
if (result) {
|
||||
/* We don't want to quit even if we failed to add suspend/resume */
|
||||
printk(KERN_ERR PREFIX "Could not register bus type\n");
|
||||
}
|
||||
|
||||
acpi_pci_root_init();
|
||||
acpi_pci_link_init();
|
||||
acpi_processor_init();
|
||||
|
|
|
|||
|
|
@ -15,10 +15,6 @@
|
|||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
*
|
||||
*/
|
||||
|
|
|
|||
|
|
@ -16,10 +16,6 @@
|
|||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along
|
||||
* with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
|
||||
*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
*
|
||||
* This driver fully implements the ACPI thermal policy as described in the
|
||||
|
|
|
|||
|
|
@ -16,10 +16,6 @@
|
|||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along
|
||||
* with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
|
||||
*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
*/
|
||||
|
||||
|
|
|
|||
|
|
@ -46,6 +46,7 @@ config OMAP_MBOX_KFIFO_SIZE
|
|||
config PCC
|
||||
bool "Platform Communication Channel Driver"
|
||||
depends on ACPI
|
||||
default n
|
||||
help
|
||||
ACPI 5.0+ spec defines a generic mode of communication
|
||||
between the OS and a platform such as the BMC. This medium
|
||||
|
|
|
|||
|
|
@ -352,4 +352,10 @@ static int __init pcc_init(void)
|
|||
|
||||
return 0;
|
||||
}
|
||||
device_initcall(pcc_init);
|
||||
|
||||
/*
|
||||
* Make PCC init postcore so that users of this mailbox
|
||||
* such as the ACPI Processor driver have it available
|
||||
* at their init.
|
||||
*/
|
||||
postcore_initcall(pcc_init);
|
||||
|
|
|
|||
|
|
@ -16,10 +16,6 @@
|
|||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along
|
||||
* with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
|
||||
*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
*/
|
||||
|
||||
|
|
|
|||
|
|
@ -16,10 +16,6 @@
|
|||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along
|
||||
* with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
|
||||
*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
*/
|
||||
|
||||
|
|
|
|||
|
|
@ -318,6 +318,7 @@ int acpi_get_cpuid(acpi_handle, int type, u32 acpi_id);
|
|||
void acpi_processor_set_pdc(acpi_handle handle);
|
||||
|
||||
/* in processor_throttling.c */
|
||||
#ifdef CONFIG_ACPI_CPU_FREQ_PSS
|
||||
int acpi_processor_tstate_has_changed(struct acpi_processor *pr);
|
||||
int acpi_processor_get_throttling_info(struct acpi_processor *pr);
|
||||
extern int acpi_processor_set_throttling(struct acpi_processor *pr,
|
||||
|
|
@ -330,14 +331,59 @@ extern void acpi_processor_reevaluate_tstate(struct acpi_processor *pr,
|
|||
unsigned long action);
|
||||
extern const struct file_operations acpi_processor_throttling_fops;
|
||||
extern void acpi_processor_throttling_init(void);
|
||||
#else
|
||||
static inline int acpi_processor_tstate_has_changed(struct acpi_processor *pr)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
static inline int acpi_processor_get_throttling_info(struct acpi_processor *pr)
|
||||
{
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
static inline int acpi_processor_set_throttling(struct acpi_processor *pr,
|
||||
int state, bool force)
|
||||
{
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
static inline void acpi_processor_reevaluate_tstate(struct acpi_processor *pr,
|
||||
unsigned long action) {}
|
||||
|
||||
static inline void acpi_processor_throttling_init(void) {}
|
||||
#endif /* CONFIG_ACPI_CPU_FREQ_PSS */
|
||||
|
||||
/* in processor_idle.c */
|
||||
extern struct cpuidle_driver acpi_idle_driver;
|
||||
#ifdef CONFIG_ACPI_PROCESSOR_IDLE
|
||||
int acpi_processor_power_init(struct acpi_processor *pr);
|
||||
int acpi_processor_power_exit(struct acpi_processor *pr);
|
||||
int acpi_processor_cst_has_changed(struct acpi_processor *pr);
|
||||
int acpi_processor_hotplug(struct acpi_processor *pr);
|
||||
extern struct cpuidle_driver acpi_idle_driver;
|
||||
#else
|
||||
static inline int acpi_processor_power_init(struct acpi_processor *pr)
|
||||
{
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_PM_SLEEP
|
||||
static inline int acpi_processor_power_exit(struct acpi_processor *pr)
|
||||
{
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
static inline int acpi_processor_cst_has_changed(struct acpi_processor *pr)
|
||||
{
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
static inline int acpi_processor_hotplug(struct acpi_processor *pr)
|
||||
{
|
||||
return -ENODEV;
|
||||
}
|
||||
#endif /* CONFIG_ACPI_PROCESSOR_IDLE */
|
||||
|
||||
#if defined(CONFIG_PM_SLEEP) & defined(CONFIG_ACPI_PROCESSOR_IDLE)
|
||||
void acpi_processor_syscore_init(void);
|
||||
void acpi_processor_syscore_exit(void);
|
||||
#else
|
||||
|
|
@ -348,7 +394,7 @@ static inline void acpi_processor_syscore_exit(void) {}
|
|||
/* in processor_thermal.c */
|
||||
int acpi_processor_get_limit_info(struct acpi_processor *pr);
|
||||
extern const struct thermal_cooling_device_ops processor_cooling_ops;
|
||||
#ifdef CONFIG_CPU_FREQ
|
||||
#if defined(CONFIG_ACPI_CPU_FREQ_PSS) & defined(CONFIG_CPU_FREQ)
|
||||
void acpi_thermal_cpufreq_init(void);
|
||||
void acpi_thermal_cpufreq_exit(void);
|
||||
#else
|
||||
|
|
@ -360,6 +406,6 @@ static inline void acpi_thermal_cpufreq_exit(void)
|
|||
{
|
||||
return;
|
||||
}
|
||||
#endif
|
||||
#endif /* CONFIG_ACPI_CPU_FREQ_PSS */
|
||||
|
||||
#endif
|
||||
|
|
|
|||
|
|
@ -15,10 +15,6 @@
|
|||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
*/
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue