Home | History | Annotate | Download | only in mraa 
      1 /*
      2  * Author: Lay, Kuan Loon <kuan.loon.lay (at) intel.com>
      3  * Copyright (c) 2015 Intel Corporation.
      4  *
      5  * Permission is hereby granted, free of charge, to any person obtaining
      6  * a copy of this software and associated documentation files (the
      7  * "Software"), to deal in the Software without restriction, including
      8  * without limitation the rights to use, copy, modify, merge, publish,
      9  * distribute, sublicense, and/or sell copies of the Software, and to
     10  * permit persons to whom the Software is furnished to do so, subject to
     11  * the following conditions:
     12  *
     13  * The above copyright notice and this permission notice shall be
     14  * included in all copies or substantial portions of the Software.
     15  *
     16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     17  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     18  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
     19  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
     20  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
     21  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
     22  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     23  */
     24 
     25 //For kernel 4.1+,
     26 //#include <linux/iio/types.h>
     27 //#include <linux/iio/events.h>
     28 
     29 //linux/iio/types.h
     30 enum iio_chan_type {
     31         IIO_VOLTAGE,
     32         IIO_CURRENT,
     33         IIO_POWER,
     34         IIO_ACCEL,
     35         IIO_ANGL_VEL,
     36         IIO_MAGN,
     37         IIO_LIGHT,
     38         IIO_INTENSITY,
     39         IIO_PROXIMITY,
     40         IIO_TEMP,
     41         IIO_INCLI,
     42         IIO_ROT,
     43         IIO_ANGL,
     44         IIO_TIMESTAMP,
     45         IIO_CAPACITANCE,
     46         IIO_ALTVOLTAGE,
     47         IIO_CCT,
     48         IIO_PRESSURE,
     49         IIO_HUMIDITYRELATIVE,
     50         IIO_ACTIVITY,
     51         IIO_STEPS,
     52         IIO_ENERGY,
     53         IIO_DISTANCE,
     54         IIO_VELOCITY,
     55 };
     56 
     57 enum iio_modifier {
     58         IIO_NO_MOD,
     59         IIO_MOD_X,
     60         IIO_MOD_Y,
     61         IIO_MOD_Z,
     62         IIO_MOD_X_AND_Y,
     63         IIO_MOD_X_AND_Z,
     64         IIO_MOD_Y_AND_Z,
     65         IIO_MOD_X_AND_Y_AND_Z,
     66         IIO_MOD_X_OR_Y,
     67         IIO_MOD_X_OR_Z,
     68         IIO_MOD_Y_OR_Z,
     69         IIO_MOD_X_OR_Y_OR_Z,
     70         IIO_MOD_LIGHT_BOTH,
     71         IIO_MOD_LIGHT_IR,
     72         IIO_MOD_ROOT_SUM_SQUARED_X_Y,
     73         IIO_MOD_SUM_SQUARED_X_Y_Z,
     74         IIO_MOD_LIGHT_CLEAR,
     75         IIO_MOD_LIGHT_RED,
     76         IIO_MOD_LIGHT_GREEN,
     77         IIO_MOD_LIGHT_BLUE,
     78         IIO_MOD_QUATERNION,
     79         IIO_MOD_TEMP_AMBIENT,
     80         IIO_MOD_TEMP_OBJECT,
     81         IIO_MOD_NORTH_MAGN,
     82         IIO_MOD_NORTH_TRUE,
     83         IIO_MOD_NORTH_MAGN_TILT_COMP,
     84         IIO_MOD_NORTH_TRUE_TILT_COMP,
     85         IIO_MOD_RUNNING,
     86         IIO_MOD_JOGGING,
     87         IIO_MOD_WALKING,
     88         IIO_MOD_STILL,
     89         IIO_MOD_ROOT_SUM_SQUARED_X_Y_Z,
     90 };
     91 
     92 enum iio_event_type {
     93         IIO_EV_TYPE_THRESH,
     94         IIO_EV_TYPE_MAG,
     95         IIO_EV_TYPE_ROC,
     96         IIO_EV_TYPE_THRESH_ADAPTIVE,
     97         IIO_EV_TYPE_MAG_ADAPTIVE,
     98         IIO_EV_TYPE_CHANGE,
     99 };
    100 
    101 enum iio_event_direction {
    102         IIO_EV_DIR_EITHER,
    103         IIO_EV_DIR_RISING,
    104         IIO_EV_DIR_FALLING,
    105         IIO_EV_DIR_NONE,
    106 };
    107 
    108 //linux/iio/events.h
    109 #include <linux/ioctl.h>
    110 
    111 /**
    112  * struct iio_event_data - The actual event being pushed to userspace
    113  * @id:		event identifier
    114  * @timestamp:	best estimate of time of event occurrence (often from
    115  *		the interrupt handler)
    116  */
    117 struct iio_event_data {
    118 	unsigned long long int	id;
    119 	long long int	timestamp;
    120 };
    121 
    122 #define IIO_GET_EVENT_FD_IOCTL _IOR('i', 0x90, int)
    123 
    124 #define IIO_EVENT_CODE_EXTRACT_TYPE(mask) ((mask >> 56) & 0xFF)
    125 
    126 #define IIO_EVENT_CODE_EXTRACT_DIR(mask) ((mask >> 48) & 0x7F)
    127 
    128 #define IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(mask) ((mask >> 32) & 0xFF)
    129 
    130 /* Event code number extraction depends on which type of event we have.
    131  * Perhaps review this function in the future*/
    132 #define IIO_EVENT_CODE_EXTRACT_CHAN(mask) ((short int)(mask & 0xFFFF))
    133 #define IIO_EVENT_CODE_EXTRACT_CHAN2(mask) ((short int)(((mask) >> 16) & 0xFFFF))
    134 
    135 #define IIO_EVENT_CODE_EXTRACT_MODIFIER(mask) ((mask >> 40) & 0xFF)
    136 #define IIO_EVENT_CODE_EXTRACT_DIFF(mask) (((mask) >> 55) & 0x1)
    137