1 // SPDX-License-Identifier: GPL-2.0
25 	struct stm_source_data	data;  member
27 	unsigned int		active;  member
37 	stm_source_write(&heartbeat->data, 0, str, sizeof str);  in stm_heartbeat_hrtimer_handler()
38 	if (heartbeat->active)  in stm_heartbeat_hrtimer_handler()
41 	return heartbeat->active ? HRTIMER_RESTART : HRTIMER_NORESTART;  in stm_heartbeat_hrtimer_handler()
44 static int stm_heartbeat_link(struct stm_source_data *data)  in stm_heartbeat_link()  argument
47 		container_of(data, struct stm_heartbeat, data);  in stm_heartbeat_link()
49 	heartbeat->active = 1;  in stm_heartbeat_link()
50 	hrtimer_start(&heartbeat->hrtimer, ms_to_ktime(interval_ms),  in stm_heartbeat_link()
56 static void stm_heartbeat_unlink(struct stm_source_data *data)  in stm_heartbeat_unlink()  argument
59 		container_of(data, struct stm_heartbeat, data);  in stm_heartbeat_unlink()
61 	heartbeat->active = 0;  in stm_heartbeat_unlink()
62 	hrtimer_cancel(&heartbeat->hrtimer);  in stm_heartbeat_unlink()
70 		return -EINVAL;  in stm_heartbeat_init()
73 		stm_heartbeat[i].data.name =  in stm_heartbeat_init()
75 		if (!stm_heartbeat[i].data.name) {  in stm_heartbeat_init()
76 			ret = -ENOMEM;  in stm_heartbeat_init()
80 		stm_heartbeat[i].data.nr_chans	= 1;  in stm_heartbeat_init()
81 		stm_heartbeat[i].data.type	= STM_USER;  in stm_heartbeat_init()
82 		stm_heartbeat[i].data.link	= stm_heartbeat_link;  in stm_heartbeat_init()
83 		stm_heartbeat[i].data.unlink	= stm_heartbeat_unlink;  in stm_heartbeat_init()
89 		ret = stm_source_register_device(NULL, &stm_heartbeat[i].data);  in stm_heartbeat_init()
97 	for (i--; i >= 0; i--) {  in stm_heartbeat_init()
98 		stm_source_unregister_device(&stm_heartbeat[i].data);  in stm_heartbeat_init()
100 		kfree(stm_heartbeat[i].data.name);  in stm_heartbeat_init()
111 		stm_source_unregister_device(&stm_heartbeat[i].data);  in stm_heartbeat_exit()
112 		kfree(stm_heartbeat[i].data.name);  in stm_heartbeat_exit()