diff options
Diffstat (limited to 'common/uptime.c')
| -rw-r--r-- | common/uptime.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/common/uptime.c b/common/uptime.c new file mode 100644 index 0000000000..2e50ab0fdd --- /dev/null +++ b/common/uptime.c @@ -0,0 +1,41 @@ +/* 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 <stddef.h> + +#include "chipset.h" +#include "system.h" +#include "host_command.h" +#include "util.h" + +static int 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); + 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(r->recent_ap_reset, + ARRAY_SIZE(r->recent_ap_reset), + &r->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)); |