diff options
Diffstat (limited to 'common/ap_hang_detect.c')
| -rw-r--r-- | common/ap_hang_detect.c | 238 |
1 files changed, 0 insertions, 238 deletions
diff --git a/common/ap_hang_detect.c b/common/ap_hang_detect.c deleted file mode 100644 index 0c9e7a186d..0000000000 --- a/common/ap_hang_detect.c +++ /dev/null @@ -1,238 +0,0 @@ -/* Copyright 2013 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. - */ - -/* AP hang detect logic */ - -#include "ap_hang_detect.h" -#include "chipset.h" -#include "common.h" -#include "console.h" -#include "hooks.h" -#include "host_command.h" -#include "lid_switch.h" -#include "power_button.h" -#include "timer.h" -#include "util.h" - -/* Console output macros */ -#define CPUTS(outstr) cputs(CC_CHIPSET, outstr) -#define CPRINTS(format, args...) cprints(CC_CHIPSET, format, ## args) - -static struct ec_params_hang_detect hdparams; - -static int active; /* Is hang detect timer active / counting? */ -static int timeout_will_reboot; /* Will the deferred call reboot the AP? */ - -/** - * Handle the hang detect timer expiring. - */ -static void hang_detect_deferred(void); -DECLARE_DEFERRED(hang_detect_deferred); - -static void hang_detect_deferred(void) -{ - /* If we're no longer active, nothing to do */ - if (!active) - return; - - /* If we're rebooting the AP, stop hang detection */ - if (timeout_will_reboot) { - CPRINTS("hang detect triggering warm reboot"); - host_set_single_event(EC_HOST_EVENT_HANG_REBOOT); - chipset_reset(CHIPSET_RESET_HANG_REBOOT); - active = 0; - return; - } - - /* Otherwise, we're starting with the host event */ - CPRINTS("hang detect sending host event"); - host_set_single_event(EC_HOST_EVENT_HANG_DETECT); - - /* If we're also rebooting, defer for the remaining delay */ - if (hdparams.warm_reboot_timeout_msec) { - CPRINTS("hang detect continuing (for reboot)"); - timeout_will_reboot = 1; - hook_call_deferred(&hang_detect_deferred_data, - (hdparams.warm_reboot_timeout_msec - - hdparams.host_event_timeout_msec) * MSEC); - } else { - /* Not rebooting, so go back to idle */ - active = 0; - } -} - -/** - * Start the hang detect timers. - */ -static void hang_detect_start(const char *why) -{ - /* If already active, don't restart timer */ - if (active) - return; - - if (hdparams.host_event_timeout_msec) { - CPRINTS("hang detect started on %s (for event)", why); - timeout_will_reboot = 0; - active = 1; - hook_call_deferred(&hang_detect_deferred_data, - hdparams.host_event_timeout_msec * MSEC); - } else if (hdparams.warm_reboot_timeout_msec) { - CPRINTS("hang detect started on %s (for reboot)", why); - timeout_will_reboot = 1; - active = 1; - hook_call_deferred(&hang_detect_deferred_data, - hdparams.warm_reboot_timeout_msec * MSEC); - } -} - -/** - * Stop the hang detect timers. - */ -static void hang_detect_stop(const char *why) -{ - if (active) - CPRINTS("hang detect stopped on %s", why); - - active = 0; -} - -void hang_detect_stop_on_host_command(void) -{ - if (hdparams.flags & EC_HANG_STOP_ON_HOST_COMMAND) - hang_detect_stop("host cmd"); -} - -/*****************************************************************************/ -/* Hooks */ - -static void hang_detect_power_button(void) -{ - if (power_button_is_pressed()) { - if (hdparams.flags & EC_HANG_START_ON_POWER_PRESS) - hang_detect_start("power button"); - } else { - if (hdparams.flags & EC_HANG_STOP_ON_POWER_RELEASE) - hang_detect_stop("power button"); - } -} -DECLARE_HOOK(HOOK_POWER_BUTTON_CHANGE, hang_detect_power_button, - HOOK_PRIO_DEFAULT); - -static void hang_detect_lid(void) -{ - if (lid_is_open()) { - if (hdparams.flags & EC_HANG_START_ON_LID_OPEN) - hang_detect_start("lid open"); - } else { - if (hdparams.flags & EC_HANG_START_ON_LID_CLOSE) - hang_detect_start("lid close"); - } -} -DECLARE_HOOK(HOOK_LID_CHANGE, hang_detect_lid, HOOK_PRIO_DEFAULT); - -static void hang_detect_resume(void) -{ - if (hdparams.flags & EC_HANG_START_ON_RESUME) - hang_detect_start("resume"); -} -DECLARE_HOOK(HOOK_CHIPSET_RESUME, hang_detect_resume, HOOK_PRIO_DEFAULT); - -static void hang_detect_suspend(void) -{ - if (hdparams.flags & EC_HANG_STOP_ON_SUSPEND) - hang_detect_stop("suspend"); -} -DECLARE_HOOK(HOOK_CHIPSET_SUSPEND, hang_detect_suspend, HOOK_PRIO_DEFAULT); - -static void hang_detect_shutdown(void) -{ - /* Stop the timers */ - hang_detect_stop("shutdown"); - - /* Disable hang detection; it must be enabled every boot */ - memset(&hdparams, 0, sizeof(hdparams)); -} -DECLARE_HOOK(HOOK_CHIPSET_SHUTDOWN, hang_detect_shutdown, HOOK_PRIO_DEFAULT); - -/*****************************************************************************/ -/* Host command */ - -static enum ec_status -hang_detect_host_command(struct host_cmd_handler_args *args) -{ - const struct ec_params_hang_detect *p = args->params; - - /* Handle stopping hang timer on request */ - if (p->flags & EC_HANG_STOP_NOW) { - hang_detect_stop("ap request"); - - /* Ignore the other params */ - return EC_RES_SUCCESS; - } - - /* Handle starting hang timer on request */ - if (p->flags & EC_HANG_START_NOW) { - hang_detect_start("ap request"); - - /* Ignore the other params */ - return EC_RES_SUCCESS; - } - - /* If hang detect transitioning to disabled, stop timers */ - if (hdparams.flags && !p->flags) - hang_detect_stop("ap flags=0"); - - /* Save new params */ - hdparams = *p; - CPRINTS("hang detect flags=0x%x, event=%d ms, reboot=%d ms", - hdparams.flags, hdparams.host_event_timeout_msec, - hdparams.warm_reboot_timeout_msec); - - /* - * If warm reboot timeout is shorter than host event timeout, ignore - * the host event timeout because a warm reboot will win. - */ - if (hdparams.warm_reboot_timeout_msec && - hdparams.warm_reboot_timeout_msec <= - hdparams.host_event_timeout_msec) - hdparams.host_event_timeout_msec = 0; - - return EC_RES_SUCCESS; -} -DECLARE_HOST_COMMAND(EC_CMD_HANG_DETECT, - hang_detect_host_command, - EC_VER_MASK(0)); - -/*****************************************************************************/ -/* Console command */ - -static int command_hang_detect(int argc, char **argv) -{ - ccprintf("flags: 0x%x\n", hdparams.flags); - - ccputs("event: "); - if (hdparams.host_event_timeout_msec) - ccprintf("%d ms\n", hdparams.host_event_timeout_msec); - else - ccputs("disabled\n"); - - ccputs("reboot: "); - if (hdparams.warm_reboot_timeout_msec) - ccprintf("%d ms\n", hdparams.warm_reboot_timeout_msec); - else - ccputs("disabled\n"); - - ccputs("status: "); - if (active) - ccprintf("active for %s\n", - timeout_will_reboot ? "reboot" : "event"); - else - ccputs("inactive\n"); - - return EC_SUCCESS; -} -DECLARE_CONSOLE_COMMAND(hangdet, command_hang_detect, - NULL, - "Print hang detect state"); |