zephyr: shim system_jumped_late & system_enter_hibernate

shim the system_jumped_late() and system_enter_hibernate() that needed
by keyboard scan.

BRANCH=none
BUG=b:167405015
TEST=compile with keyboard scan

Signed-off-by: Wealian Liao <whliao@nuvoton.corp-partner.google.com>
Change-Id: I4f79dd3b0313f4ed19550b1896ed0e439407caf6
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2552321
Reviewed-by: Jett Rink <jettrink@chromium.org>
Reviewed-by: Jack Rosenthal <jrosenth@chromium.org>
Commit-Queue: Jack Rosenthal <jrosenth@chromium.org>

1 files changed, 32 insertions, 0 deletions

diff --git a/zephyr/shim/src/system.c b/zephyr/shim/src/system.c
index 0baa9a5574..2dcd0c8ef8 100644
--- a/zephyr/shim/src/system.c
+++ b/zephyr/shim/src/system.c
@@ -7,6 +7,7 @@
 #include <string.h>
 #include <sys/util.h>
 
+#include "chipset.h"
 #include "config.h"
 #include "ec_commands.h"
 #include "sysjump.h"
@@ -33,6 +34,11 @@ struct jump_tag {
 /** Jump data (at end of RAM, or preceding panic data). */
 static struct jump_data *jdata;
 
+static enum ec_reboot_cmd reboot_at_shutdown;
+
+STATIC_IF(CONFIG_HIBERNATE) uint32_t hibernate_seconds;
+STATIC_IF(CONFIG_HIBERNATE) uint32_t hibernate_microseconds;
+
 /**
  * The flags set by the reset cause. These will be a combination of
  * EC_RESET_FLAG_*s and will be used to control the logic of initializing the
@@ -234,3 +240,29 @@ __test_only void system_override_jdata(void *test_jdata)
 {
 	jdata = (struct jump_data *)test_jdata;
 }
+
+void system_enter_hibernate(uint32_t seconds, uint32_t microseconds)
+{
+	if (!IS_ENABLED(CONFIG_HIBERNATE))
+		return;
+
+	/*
+	 * If chipset is already off, then call system_hibernate directly. Else,
+	 * let chipset_task bring down the power rails and transition to proper
+	 * state before system_hibernate is called.
+	 */
+	if (chipset_in_state(CHIPSET_STATE_ANY_OFF)) {
+		system_hibernate(seconds, microseconds);
+	} else {
+		reboot_at_shutdown = EC_REBOOT_HIBERNATE;
+		hibernate_seconds = seconds;
+		hibernate_microseconds = microseconds;
+
+		chipset_force_shutdown(CHIPSET_SHUTDOWN_CONSOLE_CMD);
+	}
+}
+
+int system_jumped_late(void)
+{
+	return !(reset_flags & EC_RESET_FLAG_EFS) && jumped_to_image;
+}