linux/drivers/misc/ibmasm/r_heartbeat.c

// SPDX-License-Identifier: GPL-2.0-or-later

/*
 *
 * Copyright (C) IBM Corporation, 2004
 *
 * Author: Max Asböck <[email protected]>
 */

#include <linux/sched/signal.h>
#include "ibmasm.h"
#include "dot_command.h"

/*
 * Reverse Heartbeat, i.e. heartbeats sent from the driver to the
 * service processor.
 * These heartbeats are initiated by user level programs.
 */

/* the reverse heartbeat dot command */
#pragma pack(1)
static struct { … } rhb_dot_cmd = …;
#pragma pack()

void ibmasm_init_reverse_heartbeat(struct service_processor *sp, struct reverse_heartbeat *rhb)
{ … }

/*
 * start_reverse_heartbeat
 * Loop forever, sending a reverse heartbeat dot command to the service
 * processor, then sleeping. The loop comes to an end if the service
 * processor fails to respond 3 times or we were interrupted.
 */
int ibmasm_start_reverse_heartbeat(struct service_processor *sp, struct reverse_heartbeat *rhb)
{ … }

void ibmasm_stop_reverse_heartbeat(struct reverse_heartbeat *rhb)
{ … }