platform/chrome/cros_ec_debugfs.c

63 	struct cros_ec_debugfs *debug_info =
67 	struct cros_ec_dev *ec = debug_info->ec;
68 	struct circ_buf *cb = &debug_info->log_buffer;
74 		(struct ec_params_console_read_v1 *)debug_info->read_msg->data;
75 	uint8_t *ec_buffer = (uint8_t *)debug_info->read_msg->data;
85 	mutex_lock(&debug_info->log_mutex);
98 					      debug_info->read_msg);
117 	mutex_unlock(&debug_info->log_mutex);
120 	schedule_delayed_work(&debug_info->log_poll_work,
134 	struct cros_ec_debugfs *debug_info = file->private_data;
135 	struct circ_buf *cb = &debug_info->log_buffer;
138 	mutex_lock(&debug_info->log_mutex);
146 		mutex_unlock(&debug_info->log_mutex);
153 		mutex_lock(&debug_info->log_mutex);
170 	mutex_unlock(&debug_info->log_mutex);
177 	struct cros_ec_debugfs *debug_info = file->private_data;
182 	mutex_lock(&debug_info->log_mutex);
183 	if (CIRC_CNT(debug_info->log_buffer.head,
184 		     debug_info->log_buffer.tail,
187 	mutex_unlock(&debug_info->log_mutex);
203 	struct cros_ec_debugfs *debug_info = file->private_data;
204 	struct cros_ec_device *ec_dev = debug_info->ec->ec_dev;
271 	struct cros_ec_debugfs *debug_info = file->private_data;
272 	struct cros_ec_device *ec_dev = debug_info->ec->ec_dev;
348 static int cros_ec_create_console_log(struct cros_ec_debugfs *debug_info)
350 	struct cros_ec_dev *ec = debug_info->ec;
368 	debug_info->read_msg = devm_kzalloc(ec->dev,
369 		sizeof(*debug_info->read_msg) +
371 	if (!debug_info->read_msg)
374 	debug_info->read_msg->version = 1;
375 	debug_info->read_msg->command = EC_CMD_CONSOLE_READ + ec->cmd_offset;
376 	debug_info->read_msg->outsize = read_params_size;
377 	debug_info->read_msg->insize = read_response_size;
379 	debug_info->log_buffer.buf = buf;
380 	debug_info->log_buffer.head = 0;
381 	debug_info->log_buffer.tail = 0;
383 	mutex_init(&debug_info->log_mutex);
385 	debugfs_create_file("console_log", S_IFREG | 0444, debug_info->dir,
386 			    debug_info, &cros_ec_console_log_fops);
388 	INIT_DELAYED_WORK(&debug_info->log_poll_work,
390 	schedule_delayed_work(&debug_info->log_poll_work, 0);
395 static void cros_ec_cleanup_console_log(struct cros_ec_debugfs *debug_info)
397 	if (debug_info->log_buffer.buf) {
398 		cancel_delayed_work_sync(&debug_info->log_poll_work);
399 		mutex_destroy(&debug_info->log_mutex);
433 static int cros_ec_create_panicinfo(struct cros_ec_debugfs *debug_info)
435 	struct cros_ec_device *ec_dev = debug_info->ec->ec_dev;
439 	data = devm_kzalloc(debug_info->ec->dev, ec_dev->max_response,
454 	debug_info->panicinfo_blob.data = data;
455 	debug_info->panicinfo_blob.size = ret;
457 	debugfs_create_blob("panicinfo", 0444, debug_info->dir,
458 			    &debug_info->panicinfo_blob);
463 	devm_kfree(debug_info->ec->dev, data);
470 	struct cros_ec_debugfs *debug_info =
473 	if (debug_info->log_buffer.buf) {
475 		mod_delayed_work(debug_info->log_poll_work.wq, &debug_info->log_poll_work, 0);
477 		flush_delayed_work(&debug_info->log_poll_work);
488 	struct cros_ec_debugfs *debug_info;
491 	debug_info = devm_kzalloc(ec->dev, sizeof(*debug_info), GFP_KERNEL);
492 	if (!debug_info)
495 	debug_info->ec = ec;
496 	debug_info->dir = debugfs_create_dir(name, NULL);
498 	ret = cros_ec_create_panicinfo(debug_info);
502 	ret = cros_ec_create_console_log(debug_info);
506 	debugfs_create_file("pdinfo", 0444, debug_info->dir, debug_info,
510 		debugfs_create_file("uptime", 0444, debug_info->dir, debug_info,
513 	debugfs_create_x32("last_resume_result", 0444, debug_info->dir,
516 	debugfs_create_u16("suspend_timeout_ms", 0664, debug_info->dir,
519 	debug_info->notifier_panic.notifier_call = cros_ec_debugfs_panic_event;
521 					       &debug_info->notifier_panic);
525 	ec->debug_info = debug_info;
532 	debugfs_remove_recursive(debug_info->dir);
540 	debugfs_remove_recursive(ec->debug_info->dir);
541 	cros_ec_cleanup_console_log(ec->debug_info);
548 	if (ec->debug_info->log_buffer.buf)
549 		cancel_delayed_work_sync(&ec->debug_info->log_poll_work);
558 	if (ec->debug_info->log_buffer.buf)
559 		schedule_delayed_work(&ec->debug_info->log_poll_work, 0);