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-rw-r--r--src/arch/x86/acpigen.c23
-rw-r--r--src/arch/x86/include/arch/acpigen.h14
2 files changed, 37 insertions, 0 deletions
diff --git a/src/arch/x86/acpigen.c b/src/arch/x86/acpigen.c
index e051c822e6..74efbb0534 100644
--- a/src/arch/x86/acpigen.c
+++ b/src/arch/x86/acpigen.c
@@ -449,6 +449,17 @@ void acpigen_write_device(const char *name)
acpigen_emit_namestring(name);
}
+void acpigen_write_STA(uint8_t status)
+{
+ /*
+ * Method (_STA, 0, NotSerialized) { Return (status) }
+ */
+ acpigen_write_method("_STA", 0);
+ acpigen_emit_byte(0xa4);
+ acpigen_write_byte(status);
+ acpigen_pop_len();
+}
+
/*
* Generates a func with max supported P-states.
*/
@@ -503,6 +514,18 @@ void acpigen_write_TPC(const char *gnvs_tpc_limit)
acpigen_pop_len();
}
+void acpigen_write_PRW(u32 wake, u32 level)
+{
+ /*
+ * Name (_PRW, Package () { wake, level }
+ */
+ acpigen_write_name("_PRW");
+ acpigen_write_package(2);
+ acpigen_write_integer(wake);
+ acpigen_write_integer(level);
+ acpigen_pop_len();
+}
+
void acpigen_write_PSS_package(u32 coreFreq, u32 power, u32 transLat,
u32 busmLat, u32 control, u32 status)
{
diff --git a/src/arch/x86/include/arch/acpigen.h b/src/arch/x86/include/arch/acpigen.h
index 25551649e9..e968778e5c 100644
--- a/src/arch/x86/include/arch/acpigen.h
+++ b/src/arch/x86/include/arch/acpigen.h
@@ -22,6 +22,18 @@
#include <stdint.h>
#include <arch/acpi.h>
+/* Values that can be returned for ACPI Device _STA method */
+#define ACPI_STATUS_DEVICE_PRESENT (1 << 0)
+#define ACPI_STATUS_DEVICE_ENABLED (1 << 1)
+#define ACPI_STATUS_DEVICE_SHOW_IN_UI (1 << 2)
+#define ACPI_STATUS_DEVICE_STATE_OK (1 << 3)
+
+#define ACPI_STATUS_DEVICE_ALL_OFF 0
+#define ACPI_STATUS_DEVICE_ALL_ON (ACPI_STATUS_DEVICE_PRESENT |\
+ ACPI_STATUS_DEVICE_ENABLED |\
+ ACPI_STATUS_DEVICE_SHOW_IN_UI |\
+ ACPI_STATUS_DEVICE_STATE_OK)
+
void acpigen_write_len_f(void);
void acpigen_pop_len(void);
void acpigen_set_current(char *curr);
@@ -58,6 +70,8 @@ void acpigen_write_PPC(u8 nr);
void acpigen_write_PPC_NVS(void);
void acpigen_write_empty_PCT(void);
void acpigen_write_empty_PTC(void);
+void acpigen_write_PRW(u32 wake, u32 level);
+void acpigen_write_STA(uint8_t status);
void acpigen_write_TPC(const char *gnvs_tpc_limit);
void acpigen_write_PSS_package(u32 coreFreq, u32 power, u32 transLat, u32 busmLat,
u32 control, u32 status);