ACPI: Enhance /sys/firmware/interrupts to allow enable/disable/clear from user-space

[linux-2.6-omap-h63xx.git] / drivers / acpi / events / evxfevnt.c

diff --git a/drivers/acpi/events/evxfevnt.c b/drivers/acpi/events/evxfevnt.c
index 99a7502e6a87465894e262b566b99f2a8dec35bf..73bfd6bf962ff9758e910dda2a073b892d76f1cf 100644 (file)
--- a/drivers/acpi/events/evxfevnt.c
+++ b/drivers/acpi/events/evxfevnt.c
@@ -472,7 +472,6 @@ acpi_status acpi_clear_gpe(acpi_handle gpe_device, u32 gpe_number, u32 flags)
 }
 
 ACPI_EXPORT_SYMBOL(acpi_clear_gpe)
-#ifdef ACPI_FUTURE_USAGE
 /*******************************************************************************
  *
  * FUNCTION:    acpi_get_event_status
@@ -489,6 +488,7 @@ ACPI_EXPORT_SYMBOL(acpi_clear_gpe)
 acpi_status acpi_get_event_status(u32 event, acpi_event_status * event_status)
 {
        acpi_status status = AE_OK;
+       u32 value;
 
        ACPI_FUNCTION_TRACE(acpi_get_event_status);
 
@@ -506,7 +506,20 @@ acpi_status acpi_get_event_status(u32 event, acpi_event_status * event_status)
 
        status =
            acpi_get_register(acpi_gbl_fixed_event_info[event].
-                             status_register_id, event_status);
+                             enable_register_id, &value);
+       if (ACPI_FAILURE(status))
+               return_ACPI_STATUS(status);
+
+       *event_status = value;
+
+       status =
+           acpi_get_register(acpi_gbl_fixed_event_info[event].
+                             status_register_id, &value);
+       if (ACPI_FAILURE(status))
+               return_ACPI_STATUS(status);
+
+       if (value)
+               *event_status |= ACPI_EVENT_FLAG_SET;
 
        return_ACPI_STATUS(status);
 }
@@ -566,7 +579,6 @@ acpi_get_gpe_status(acpi_handle gpe_device,
 }
 
 ACPI_EXPORT_SYMBOL(acpi_get_gpe_status)
-#endif                         /*  ACPI_FUTURE_USAGE  */
 /*******************************************************************************
  *
  * FUNCTION:    acpi_install_gpe_block