hid-sensor-hub.h

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/*
 * 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.
 *
 */
#ifndef _HID_SENSORS_HUB_H
#define _HID_SENSORS_HUB_H

#include <linux/hid.h>
#include <linux/hid-sensor-ids.h>

struct hid_sensor_hub_attribute_info {
    u32 usage_id;
    u32 attrib_id;
    s32 report_id;
    s32 index;
    s32 units;
    s32 unit_expo;
    s32 size;
};

struct hid_sensor_hub_device {
    struct hid_device *hdev;
    u32 vendor_id;
    u32 product_id;
};

struct hid_sensor_hub_callbacks {
    struct platform_device *pdev;
    int (*suspend)(struct hid_sensor_hub_device *hsdev, void *priv);
    int (*resume)(struct hid_sensor_hub_device *hsdev, void *priv);
    int (*capture_sample)(struct hid_sensor_hub_device *hsdev,
            u32 usage_id, size_t raw_len, char *raw_data,
            void *priv);
    int (*send_event)(struct hid_sensor_hub_device *hsdev, u32 usage_id,
             void *priv);
};

/* Registration functions */

int sensor_hub_register_callback(struct hid_sensor_hub_device *hsdev,
            u32 usage_id,
            struct hid_sensor_hub_callbacks *usage_callback);

int sensor_hub_remove_callback(struct hid_sensor_hub_device *hsdev,
            u32 usage_id);


/* Hid sensor hub core interfaces */

int sensor_hub_input_get_attribute_info(struct hid_sensor_hub_device *hsdev,
            u8 type,
            u32 usage_id, u32 attr_usage_id,
            struct hid_sensor_hub_attribute_info *info);

int sensor_hub_input_attr_get_raw_value(struct hid_sensor_hub_device *hsdev,
            u32 usage_id,
            u32 attr_usage_id, u32 report_id);
int sensor_hub_set_feature(struct hid_sensor_hub_device *hsdev, u32 report_id,
            u32 field_index, s32 value);

int sensor_hub_get_feature(struct hid_sensor_hub_device *hsdev, u32 report_id,
            u32 field_index, s32 *value);
#endif