| srinivas pandruvada | 73c6768 | 2012-09-05 13:56:00 +0100 | [diff] [blame^] | 1 | /* |
| 2 | * HID Sensors Driver |
| 3 | * Copyright (c) 2012, Intel Corporation. |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify it |
| 6 | * under the terms and conditions of the GNU General Public License, |
| 7 | * version 2, as published by the Free Software Foundation. |
| 8 | * |
| 9 | * This program is distributed in the hope it will be useful, but WITHOUT |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 12 | * more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License along with |
| 15 | * this program; if not, write to the Free Software Foundation, Inc., |
| 16 | * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. |
| 17 | * |
| 18 | */ |
| 19 | #ifndef _HID_SENSORS_ATTRIBUTES_H |
| 20 | #define _HID_SENSORS_ATTRIBUTES_H |
| 21 | |
| 22 | /* Common hid sensor iio structure */ |
| 23 | struct hid_sensor_iio_common { |
| 24 | struct hid_sensor_hub_device *hsdev; |
| 25 | struct platform_device *pdev; |
| 26 | unsigned usage_id; |
| 27 | bool data_ready; |
| 28 | struct hid_sensor_hub_attribute_info poll; |
| 29 | struct hid_sensor_hub_attribute_info report_state; |
| 30 | struct hid_sensor_hub_attribute_info power_state; |
| 31 | struct hid_sensor_hub_attribute_info sensitivity; |
| 32 | }; |
| 33 | |
| 34 | /*Convert from hid unit expo to regular exponent*/ |
| 35 | static inline int hid_sensor_convert_exponent(int unit_expo) |
| 36 | { |
| 37 | if (unit_expo < 0x08) |
| 38 | return unit_expo; |
| 39 | else if (unit_expo <= 0x0f) |
| 40 | return -(0x0f-unit_expo+1); |
| 41 | else |
| 42 | return 0; |
| 43 | } |
| 44 | |
| 45 | int hid_sensor_parse_common_attributes(struct hid_sensor_hub_device *hsdev, |
| 46 | u32 usage_id, |
| 47 | struct hid_sensor_iio_common *st); |
| 48 | int hid_sensor_write_raw_hyst_value(struct hid_sensor_iio_common *st, |
| 49 | int val1, int val2); |
| 50 | int hid_sensor_read_raw_hyst_value(struct hid_sensor_iio_common *st, |
| 51 | int *val1, int *val2); |
| 52 | int hid_sensor_write_samp_freq_value(struct hid_sensor_iio_common *st, |
| 53 | int val1, int val2); |
| 54 | int hid_sensor_read_samp_freq_value(struct hid_sensor_iio_common *st, |
| 55 | int *val1, int *val2); |
| 56 | |
| 57 | #endif |