common: Add uptime host command

This moves the EC_CMD_GET_UPTIME_INFO command from behind the
CONFIG_CMD_AP_RESET_LOG config in chipset.c into the generic
common/uptime.c file, so that all boards in the codebase can use it. If
CONFIG_CMD_AP_RESET_LOG is enabled, the "AP reset stats" will be filled.
Otherwise, ap_reset_stats is a no-op and recent_ap_reset is filled with
zero.

BRANCH=none
BUG=chromium:997314
TEST=cat /sys/kernel/debug/cros_fp/uptime

Change-Id: I3b6f91b2dd22d3d55b707309ec1fdfd26d42fd70
Signed-off-by: Tom Hughes <tomhughes@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1769393
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>

3 files changed, 85 insertions, 0 deletions

diff --git a/test/build.mk b/test/build.mk
index 5868513962..ea0fef7fc1 100644
--- a/test/build.mk
+++ b/test/build.mk
@@ -66,6 +66,7 @@ test-list-host += static_if_error
 test-list-host += system
 test-list-host += thermal
 test-list-host += timer_dos
+test-list-host += uptime
 test-list-host += usb_pd
 test-list-host += usb_pd_giveback
 test-list-host += usb_pd_rev30
@@ -140,6 +141,7 @@ system-y=system.o
 thermal-y=thermal.o
 timer_calib-y=timer_calib.o
 timer_dos-y=timer_dos.o
+uptime-y=uptime.o
 usb_pd-y=usb_pd.o
 usb_pd_giveback-y=usb_pd.o
 usb_pd_rev30-y=usb_pd.o
diff --git a/test/uptime.c b/test/uptime.c
new file mode 100644
index 0000000000..7ff39f98db
--- /dev/null
+++ b/test/uptime.c
@@ -0,0 +1,73 @@
+/* Copyright 2019 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include <stdbool.h>
+
+#include "common.h"
+#include "ec_commands.h"
+#include "host_command.h"
+#include "test_util.h"
+#include "timer.h"
+#include "util.h"
+
+static bool get_ap_reset_stats_should_succeed = true;
+
+/* Mocks */
+
+enum ec_error_list
+get_ap_reset_stats(struct ap_reset_log_entry *reset_log_entries,
+		   size_t num_reset_log_entries, uint32_t *resets_since_ec_boot)
+{
+	return get_ap_reset_stats_should_succeed ? EC_SUCCESS : EC_ERROR_INVAL;
+}
+
+timestamp_t get_time(void)
+{
+	timestamp_t fake_time = { .val = 42 * MSEC };
+	return fake_time;
+}
+
+/* Tests */
+
+test_static int test_host_uptime_info_command_success(void)
+{
+	int rv;
+	struct ec_response_uptime_info resp = { 0 };
+
+	get_ap_reset_stats_should_succeed = true;
+
+	rv = test_send_host_command(EC_CMD_GET_UPTIME_INFO, 0, NULL, 0, &resp,
+				    sizeof(resp));
+
+	TEST_ASSERT(rv == EC_RES_SUCCESS);
+	TEST_ASSERT(resp.time_since_ec_boot_ms == 42);
+
+	return EC_RES_SUCCESS;
+}
+
+test_static int test_host_uptime_info_command_failure(void)
+{
+	int rv;
+	struct ec_response_uptime_info resp = { 0 };
+
+	get_ap_reset_stats_should_succeed = false;
+
+	rv = test_send_host_command(EC_CMD_GET_UPTIME_INFO, 0, NULL, 0, &resp,
+				    sizeof(resp));
+
+	TEST_ASSERT(rv == EC_RES_ERROR);
+
+	return EC_RES_SUCCESS;
+}
+
+void run_test(void)
+{
+	test_reset();
+
+	RUN_TEST(test_host_uptime_info_command_success);
+	RUN_TEST(test_host_uptime_info_command_failure);
+
+	test_print_result();
+}
diff --git a/test/uptime.tasklist b/test/uptime.tasklist
new file mode 100644
index 0000000000..9bf1c80c20
--- /dev/null
+++ b/test/uptime.tasklist
@@ -0,0 +1,10 @@
+/* Copyright 2019 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+/**
+ * See CONFIG_TASK_LIST in config.h for details.
+ */
+#define CONFIG_TEST_TASK_LIST
+