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committed 0145b50566e/* * HID Sensors Driver * Copyright (c) 2012, Intel Corporation. * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, * version 2, as published by the Free Software Foundation. * * This program is distributed in the hope it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * * You should have received a copy of the GNU General Public License along with * this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. * *//** * struct sensor_hub_data - Hold a instance data for a HID hub device * @hsdev: Stored hid instance for current hub device. * @mutex: Mutex to serialize synchronous request. * @lock: Spin lock to protect pending request structure. * @dyn_callback_list: Holds callback function * @dyn_callback_lock: spin lock to protect callback list * @hid_sensor_hub_client_devs: Stores all MFD cells for a hub instance. * @hid_sensor_client_cnt: Number of MFD cells, (no of sensors attached). * @ref_cnt: Number of MFD clients have opened this device */struct sensor_hub_data { struct mutex mutex; spinlock_t lock; struct list_head dyn_callback_list; spinlock_t dyn_callback_lock; struct mfd_cell *hid_sensor_hub_client_devs; int hid_sensor_client_cnt; unsigned long quirks; int ref_cnt;};/** * struct hid_sensor_hub_callbacks_list - Stores callback list * @list: list head. * @usage_id: usage id for a physical device. * @usage_callback: Stores registered callback functions. * @priv: Private data for a physical device. */struct hid_sensor_hub_callbacks_list { struct list_head list; u32 usage_id; struct hid_sensor_hub_device *hsdev; struct hid_sensor_hub_callbacks *usage_callback; void *priv;};static struct hid_report *sensor_hub_report(int id, struct hid_device *hdev, int dir){ struct hid_report *report; list_for_each_entry(report, &hdev->report_enum[dir].report_list, list) { if (report->id == id) return report; } hid_warn(hdev, "No report with id 0x%x found\n", id); return NULL;}static int sensor_hub_get_physical_device_count(struct hid_device *hdev){ int i; int count = 0; for (i = 0; i < hdev->maxcollection; ++i) { struct hid_collection *collection = &hdev->collection[i]; if (collection->type == HID_COLLECTION_PHYSICAL || collection->type == HID_COLLECTION_APPLICATION) ++count;