include/linux/input/kxtj9.h

   1 /*
   2  * Copyright (C) 2011 Kionix, Inc.
   3  * Written by Chris Hudson <chudson@kionix.com>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17  * 02111-1307, USA
  18  */
  19
  20 #ifndef __KXTJ9_H__
  21 #define __KXTJ9_H__
  22
  23 #define KXTJ9_I2C_ADDR          0x0F
  24
  25 struct kxtj9_platform_data {
  26         unsigned int min_interval;      /* minimum poll interval (in milli-seconds) */
  27         unsigned int init_interval;     /* initial poll interval (in milli-seconds) */
  28
  29         /*
  30          * By default, x is axis 0, y is axis 1, z is axis 2; these can be
  31          * changed to account for sensor orientation within the host device.
  32          */
  33         u8 axis_map_x;
  34         u8 axis_map_y;
  35         u8 axis_map_z;
  36
  37         /*
  38          * Each axis can be negated to account for sensor orientation within
  39          * the host device.
  40          */
  41         bool negate_x;
  42         bool negate_y;
  43         bool negate_z;
  44
  45         /* CTRL_REG1: set resolution, g-range, data ready enable */
  46         /* Output resolution: 8-bit valid or 12-bit valid */
  47         #define RES_8BIT                0
  48         #define RES_12BIT               (1 << 6)
  49         u8 res_12bit;
  50         /* Output g-range: +/-2g, 4g, or 8g */
  51         #define KXTJ9_G_2G              0
  52         #define KXTJ9_G_4G              (1 << 3)
  53         #define KXTJ9_G_8G              (1 << 4)
  54         u8 g_range;
  55
  56         int (*init)(void);
  57         void (*exit)(void);
  58         int (*power_on)(void);
  59         int (*power_off)(void);
  60 };
  61 #endif  /* __KXTJ9_H__ */