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/* Copyright 2019 The ChromiumOS Authors
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "chipset.h"
#include "host_command.h"
#include "system.h"
#include "util.h"
#include <stddef.h>
static enum ec_status
host_command_get_uptime_info(struct host_cmd_handler_args *args)
{
/*
* In the current implementation, not all terms are preserved across a
* sysjump. Future implementations may preserve additional information.
*
* time_since_ec_boot_ms: preserved, but wraps at ~50 days
* ec_reset_flags: preserved, with 'sysjump' added
* ap_resets_since_ec_boot: Not preserved
* recent_ap_reset[*]: Not preserved
*/
struct ec_response_uptime_info *r = args->response;
timestamp_t now = get_time();
uint32_t now_ms = (uint32_t)(now.val / MSEC);
void *recent_ap_reset = r->recent_ap_reset;
uint32_t ap_resets_since_ec_boot = 0;
enum ec_error_list rc;
r->time_since_ec_boot_ms = now_ms;
r->ec_reset_flags = system_get_reset_flags();
memset(r->recent_ap_reset, 0, sizeof(r->recent_ap_reset));
rc = get_ap_reset_stats(recent_ap_reset, ARRAY_SIZE(r->recent_ap_reset),
&ap_resets_since_ec_boot);
r->ap_resets_since_ec_boot = ap_resets_since_ec_boot;
args->response_size = sizeof(*r);
return rc == EC_SUCCESS ? EC_RES_SUCCESS : EC_RES_ERROR;
}
DECLARE_HOST_COMMAND(EC_CMD_GET_UPTIME_INFO, host_command_get_uptime_info,
EC_VER_MASK(0));
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