ACPICA: Add struct header support for _FDE, _GRT, _GTM, and _SRT names.

Added structs for the buffers related to these predefined names,
in acbuffer.h

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

include/acpi/acbuffer.h

@@ -44,6 +44,11 @@
 #ifndef __ACBUFFER_H__
 #define __ACBUFFER_H__
 
+/*
+ * Contains buffer structures for these predefined names:
+ * _FDE, _GRT, _GTM, _PLD, _SRT
+ */
+
 /*
  * Note: C bitfields are not used for this reason:
  *
@@ -56,6 +61,44 @@
  * See http://stackoverflow.com/a/1053662/41661
  */
 
+/* _FDE return value */
+
+struct acpi_fde_info {
+	u32 floppy0;
+	u32 floppy1;
+	u32 floppy2;
+	u32 floppy3;
+	u32 tape;
+};
+
+/*
+ * _GRT return value
+ * _SRT input value
+ */
+struct acpi_grt_info {
+	u16 year;
+	u8 month;
+	u8 day;
+	u8 hour;
+	u8 minute;
+	u8 second;
+	u8 valid;
+	u16 milliseconds;
+	u16 timezone;
+	u8 daylight;
+	u8 reserved[3];
+};
+
+/* _GTM return value */
+
+struct acpi_gtm_info {
+	u32 pio_speed0;
+	u32 dma_speed0;
+	u32 pio_speed1;
+	u32 dma_speed1;
+	u32 flags;
+};
+
 /*
  * Formatted _PLD return value. The minimum size is a package containing
  * one buffer.