Duncan Laurie submitted this change.
acpigen: Add acpigen_notify
A fairly common thing in ACPI is notifying a device when some kind of
device-specific event happens; this function simplifies writing this
pattern.
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: I0f18db9cc836ec9249604452f03ed9b4c6478827
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42102
Reviewed-by: Sumeet R Pawnikar <sumeet.r.pawnikar@intel.com>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
---
M src/acpi/acpigen.c
M src/include/acpi/acpigen.h
2 files changed, 10 insertions(+), 0 deletions(-)
diff --git a/src/acpi/acpigen.c b/src/acpi/acpigen.c
index bf1b373..a4a74f6 100644
--- a/src/acpi/acpigen.c
+++ b/src/acpi/acpigen.c
@@ -1964,3 +1964,10 @@
(((uint64_t)address->part_id & 0xffff) << 8) |
(((uint64_t)address->class & 0xff)));
}
+
+void acpigen_notify(const char *namestr, int value)
+{
+ acpigen_emit_byte(NOTIFY_OP);
+ acpigen_emit_namestring(namestr);
+ acpigen_write_integer(value);
+}
diff --git a/src/include/acpi/acpigen.h b/src/include/acpi/acpigen.h
index 701e44ba..98a9fe4 100644
--- a/src/include/acpi/acpigen.h
+++ b/src/include/acpi/acpigen.h
@@ -509,4 +509,7 @@
void acpigen_resource_qword(u16 res_type, u16 gen_flags, u16 type_flags,
u64 gran, u64 range_min, u64 range_max, u64 translation, u64 length);
+/* Emits Notify(namestr, value) */
+void acpigen_notify(const char *namestr, int value);
+
#endif /* __ACPI_ACPIGEN_H__ */
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