ACPICA: Implicit notify support

Index: linux-2.6/drivers/acpi/acpica/acevents.h
===================================================================
@@ -91,6 +91,8 @@ struct acpi_gpe_event_info *acpi_ev_low_
 						     struct acpi_gpe_block_info
 						     *gpe_block);
 
+acpi_status acpi_ev_finish_gpe(struct acpi_gpe_event_info *gpe_event_info);
+
 /*
  * evgpeblk - Upper-level GPE block support
  */

Index: linux-2.6/drivers/acpi/acpica/aclocal.h
===================================================================
@@ -419,6 +419,7 @@ struct acpi_gpe_handler_info {
 union acpi_gpe_dispatch_info {
 	struct acpi_namespace_node *method_node;	/* Method node for this GPE level */
 	struct acpi_gpe_handler_info *handler;  /* Installed GPE handler */
+	struct acpi_namespace_node *device_node;        /* Parent _PRW device for implicit notify */
 };
 
 /*

251 lines not on this page · raw message

Index: linux-2.6/drivers/acpi/acpica/evgpeblk.c
===================================================================
@@ -472,9 +472,14 @@ acpi_ev_initialize_gpe_block(struct acpi
 			gpe_index = (i * ACPI_GPE_REGISTER_WIDTH) + j;
 			gpe_event_info = &gpe_block->event_info[gpe_index];
 
-			/* Ignore GPEs that have no corresponding _Lxx/_Exx method */
-
-			if (!(gpe_event_info->flags & ACPI_GPE_DISPATCH_METHOD)
+			/*
+			 * Ignore GPEs that have no corresponding _Lxx/_Exx method
+			 * and GPEs that are used to wake the system
+			 */
+			if (((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) ==
+			     ACPI_GPE_DISPATCH_NONE)
+			    || ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK)
+				== ACPI_GPE_DISPATCH_HANDLER)
 			    || (gpe_event_info->flags & ACPI_GPE_CAN_WAKE)) {
 				continue;
 			}

Index: linux-2.6/drivers/acpi/acpica/evgpeinit.c
===================================================================
@@ -415,6 +415,7 @@ acpi_ev_match_gpe_method(acpi_handle obj
 	 * Add the GPE information from above to the gpe_event_info block for
 	 * use during dispatch of this GPE.
 	 */
+	gpe_event_info->flags &= ~(ACPI_GPE_DISPATCH_MASK);
 	gpe_event_info->flags |= (u8)(type | ACPI_GPE_DISPATCH_METHOD);
 	gpe_event_info->dispatch.method_node = method_node;
 

86 lines not on this page · raw message

Index: linux-2.6/drivers/acpi/scan.c
===================================================================
@@ -778,7 +778,7 @@ acpi_bus_extract_wakeup_device_power_pac
 		wakeup->resources.handles[i] = element->reference.handle;
 	}
 
-	acpi_setup_gpe_for_wake(wakeup->gpe_device, wakeup->gpe_number);
+	acpi_setup_gpe_for_wake(handle, wakeup->gpe_device, wakeup->gpe_number);
 
  out:
 	kfree(buffer.pointer);

Index: linux-2.6/include/acpi/acpixf.h
===================================================================
@@ -292,10 +292,12 @@ acpi_status acpi_enable_gpe(acpi_handle
 
 acpi_status acpi_disable_gpe(acpi_handle gpe_device, u32 gpe_number);
 
-acpi_status acpi_setup_gpe_for_wake(acpi_handle gpe_device, u32 gpe_number);
-
 acpi_status acpi_clear_gpe(acpi_handle gpe_device, u32 gpe_number);
 
+acpi_status
+acpi_setup_gpe_for_wake(acpi_handle parent_device,
+			acpi_handle gpe_device, u32 gpe_number);
+
 acpi_status acpi_set_gpe_wake_mask(acpi_handle gpe_device, u32 gpe_number, u8 action);
 
 acpi_status

Index: linux-2.6/include/acpi/actypes.h
===================================================================
@@ -664,25 +664,26 @@ typedef u32 acpi_event_status;
 
 /*
  * GPE info flags - Per GPE
- * +-------+---+-+-+
- * |  7:4  |3:2|1|0|
- * +-------+---+-+-+
- *     |     |  | |
- *     |     |  | +--- Interrupt type: edge or level triggered
- *     |     |  +----- GPE can wake the system
- *     |     +-------- Type of dispatch:to method, handler, or none
- *     +-------------- <Reserved>
- */
-#define ACPI_GPE_XRUPT_TYPE_MASK        (u8) 0x01
-#define ACPI_GPE_LEVEL_TRIGGERED        (u8) 0x01
-#define ACPI_GPE_EDGE_TRIGGERED         (u8) 0x00
+ * +-------+-+-+---+
+ * |  7:4  |3|2|1:0|
+ * +-------+-+-+---+
+ *     |    | |  |
+ *     |    | |  +-- Type of dispatch:to method, handler, notify, or none
+ *     |    | +----- Interrupt type: edge or level triggered
+ *     |    +------- Is a Wake GPE
+ *     +------------ <Reserved>
+ */
+#define ACPI_GPE_DISPATCH_NONE          (u8) 0x00
+#define ACPI_GPE_DISPATCH_METHOD        (u8) 0x01
+#define ACPI_GPE_DISPATCH_HANDLER       (u8) 0x02
+#define ACPI_GPE_DISPATCH_NOTIFY        (u8) 0x03
+#define ACPI_GPE_DISPATCH_MASK          (u8) 0x03
 
-#define ACPI_GPE_CAN_WAKE		(u8) 0x02
+#define ACPI_GPE_LEVEL_TRIGGERED        (u8) 0x04
+#define ACPI_GPE_EDGE_TRIGGERED         (u8) 0x00
+#define ACPI_GPE_XRUPT_TYPE_MASK        (u8) 0x04
 
-#define ACPI_GPE_DISPATCH_MASK          (u8) 0x0C
-#define ACPI_GPE_DISPATCH_HANDLER       (u8) 0x04
-#define ACPI_GPE_DISPATCH_METHOD        (u8) 0x08
-#define ACPI_GPE_DISPATCH_NOT_USED      (u8) 0x00
+#define ACPI_GPE_CAN_WAKE               (u8) 0x08
 
 /*
  * Flags for GPE and Lock interfaces

@@ -954,6 +955,10 @@ u32 (*acpi_interface_handler) (acpi_stri
 #define ACPI_INTERRUPT_NOT_HANDLED      0x00
 #define ACPI_INTERRUPT_HANDLED          0x01
 
+/* GPE handler return values */
+
+#define ACPI_REENABLE_GPE               0x80
+
 /* Length of 32-bit EISAID values when converted back to a string */
 
 #define ACPI_EISAID_STRING_SIZE         8	/* Includes null terminator */

Index: linux-2.6/drivers/acpi/ec.c
===================================================================
@@ -619,7 +619,7 @@ static u32 acpi_ec_gpe_handler(acpi_hand
 		wake_up(&ec->wait);
 		ec_check_sci(ec, acpi_ec_read_status(ec));
 	}
-	return ACPI_INTERRUPT_HANDLED;
+	return (ACPI_INTERRUPT_HANDLED | ACPI_REENABLE_GPE);
 }
 
 /* --------------------------------------------------------------------------