ACPI: Provide /sys/kernel/debug/ec/...
This patch provides the same information through debugfs, which previously was
provided through /proc/acpi/embedded_controller/*/info
This is the gpe the EC is connected to and whether the global lock
gets used.
The io ports used are added to /proc/ioports in another patch.
Beside the fact that /proc/acpi is deprecated for quite some time,
this info is not needed for applications and thus can be moved
to debugfs instead of a public interface like /sys.
Signed-off-by: Thomas Renninger <trenn@suse.de>
CC: Alexey Starikovskiy <astarikovskiy@suse.de>
CC: Len Brown <lenb@kernel.org>
CC: linux-kernel@vger.kernel.org
CC: linux-acpi@vger.kernel.org
CC: Bjorn Helgaas <bjorn.helgaas@hp.com>
CC: platform-driver-x86@vger.kernel.org
Signed-off-by: Matthew Garrett <mjg@redhat.com>
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index f8f190e..8ae2726 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -18,6 +18,11 @@
* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
*/
+#ifndef _ACPI_INTERNAL_H_
+#define _ACPI_INTERNAL_H_
+
+#include <linux/sysdev.h>
+
#define PREFIX "ACPI: "
int init_acpi_device_notify(void);
@@ -46,6 +51,23 @@
/* --------------------------------------------------------------------------
Embedded Controller
-------------------------------------------------------------------------- */
+struct acpi_ec {
+ acpi_handle handle;
+ unsigned long gpe;
+ unsigned long command_addr;
+ unsigned long data_addr;
+ unsigned long global_lock;
+ unsigned long flags;
+ struct mutex lock;
+ wait_queue_head_t wait;
+ struct list_head list;
+ struct transaction *curr;
+ spinlock_t curr_lock;
+ struct sys_device sysdev;
+};
+
+extern struct acpi_ec *first_ec;
+
int acpi_ec_init(void);
int acpi_ec_ecdt_probe(void);
int acpi_boot_ec_enable(void);
@@ -63,3 +85,5 @@
#else
static inline int acpi_sleep_proc_init(void) { return 0; }
#endif
+
+#endif /* _ACPI_INTERNAL_H_ */