drivers/hwmon/lis3lv02d.h

   1 /*
   2  *  lis3lv02d.h - ST LIS3LV02DL accelerometer driver
   3  *
   4  *  Copyright (C) 2007-2008 Yan Burman
   5  *  Copyright (C) 2008 Eric Piel
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 2 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, write to the Free Software
  19  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21
  22 /*
  23  * The actual chip is STMicroelectronics LIS3LV02DL or LIS3LV02DQ that seems to
  24  * be connected via SPI. There exists also several similar chips (such as LIS302DL or
  25  * LIS3L02DQ) but not in the HP laptops and they have slightly different registers.
  26  * They can also be connected via I²C.
  27  */
  28
  29 #define LIS3LV02DL_ID   0x3A /* Also the LIS3LV02DQ */
  30 #define LIS302DL_ID     0x3B /* Also the LIS202DL! */
  31
  32 enum lis3lv02d_reg {
  33         WHO_AM_I        = 0x0F,
  34         OFFSET_X        = 0x16,
  35         OFFSET_Y        = 0x17,
  36         OFFSET_Z        = 0x18,
  37         GAIN_X          = 0x19,
  38         GAIN_Y          = 0x1A,
  39         GAIN_Z          = 0x1B,
  40         CTRL_REG1       = 0x20,
  41         CTRL_REG2       = 0x21,
  42         CTRL_REG3       = 0x22,
  43         HP_FILTER_RESET = 0x23,
  44         STATUS_REG      = 0x27,
  45         OUTX_L          = 0x28,
  46         OUTX_H          = 0x29,
  47         OUTY_L          = 0x2A,
  48         OUTY_H          = 0x2B,
  49         OUTZ_L          = 0x2C,
  50         OUTZ_H          = 0x2D,
  51         FF_WU_CFG       = 0x30,
  52         FF_WU_SRC       = 0x31,
  53         FF_WU_ACK       = 0x32,
  54         FF_WU_THS_L     = 0x34,
  55         FF_WU_THS_H     = 0x35,
  56         FF_WU_DURATION  = 0x36,
  57         DD_CFG          = 0x38,
  58         DD_SRC          = 0x39,
  59         DD_ACK          = 0x3A,
  60         DD_THSI_L       = 0x3C,
  61         DD_THSI_H       = 0x3D,
  62         DD_THSE_L       = 0x3E,
  63         DD_THSE_H       = 0x3F,
  64 };
  65
  66 enum lis3lv02d_ctrl1 {
  67         CTRL1_Xen       = 0x01,
  68         CTRL1_Yen       = 0x02,
  69         CTRL1_Zen       = 0x04,
  70         CTRL1_ST        = 0x08,
  71         CTRL1_DF0       = 0x10,
  72         CTRL1_DF1       = 0x20,
  73         CTRL1_PD0       = 0x40,
  74         CTRL1_PD1       = 0x80,
  75 };
  76 enum lis3lv02d_ctrl2 {
  77         CTRL2_DAS       = 0x01,
  78         CTRL2_SIM       = 0x02,
  79         CTRL2_DRDY      = 0x04,
  80         CTRL2_IEN       = 0x08,
  81         CTRL2_BOOT      = 0x10,
  82         CTRL2_BLE       = 0x20,
  83         CTRL2_BDU       = 0x40, /* Block Data Update */
  84         CTRL2_FS        = 0x80, /* Full Scale selection */
  85 };
  86
  87
  88 enum lis3lv02d_ctrl3 {
  89         CTRL3_CFS0      = 0x01,
  90         CTRL3_CFS1      = 0x02,
  91         CTRL3_FDS       = 0x10,
  92         CTRL3_HPFF      = 0x20,
  93         CTRL3_HPDD      = 0x40,
  94         CTRL3_ECK       = 0x80,
  95 };
  96
  97 enum lis3lv02d_status_reg {
  98         STATUS_XDA      = 0x01,
  99         STATUS_YDA      = 0x02,
 100         STATUS_ZDA      = 0x04,
 101         STATUS_XYZDA    = 0x08,
 102         STATUS_XOR      = 0x10,
 103         STATUS_YOR      = 0x20,
 104         STATUS_ZOR      = 0x40,
 105         STATUS_XYZOR    = 0x80,
 106 };
 107
 108 enum lis3lv02d_ff_wu_cfg {
 109         FF_WU_CFG_XLIE  = 0x01,
 110         FF_WU_CFG_XHIE  = 0x02,
 111         FF_WU_CFG_YLIE  = 0x04,
 112         FF_WU_CFG_YHIE  = 0x08,
 113         FF_WU_CFG_ZLIE  = 0x10,
 114         FF_WU_CFG_ZHIE  = 0x20,
 115         FF_WU_CFG_LIR   = 0x40,
 116         FF_WU_CFG_AOI   = 0x80,
 117 };
 118
 119 enum lis3lv02d_ff_wu_src {
 120         FF_WU_SRC_XL    = 0x01,
 121         FF_WU_SRC_XH    = 0x02,
 122         FF_WU_SRC_YL    = 0x04,
 123         FF_WU_SRC_YH    = 0x08,
 124         FF_WU_SRC_ZL    = 0x10,
 125         FF_WU_SRC_ZH    = 0x20,
 126         FF_WU_SRC_IA    = 0x40,
 127 };
 128
 129 enum lis3lv02d_dd_cfg {
 130         DD_CFG_XLIE     = 0x01,
 131         DD_CFG_XHIE     = 0x02,
 132         DD_CFG_YLIE     = 0x04,
 133         DD_CFG_YHIE     = 0x08,
 134         DD_CFG_ZLIE     = 0x10,
 135         DD_CFG_ZHIE     = 0x20,
 136         DD_CFG_LIR      = 0x40,
 137         DD_CFG_IEND     = 0x80,
 138 };
 139
 140 enum lis3lv02d_dd_src {
 141         DD_SRC_XL       = 0x01,
 142         DD_SRC_XH       = 0x02,
 143         DD_SRC_YL       = 0x04,
 144         DD_SRC_YH       = 0x08,
 145         DD_SRC_ZL       = 0x10,
 146         DD_SRC_ZH       = 0x20,
 147         DD_SRC_IA       = 0x40,
 148 };
 149
 150 struct axis_conversion {
 151         s8      x;
 152         s8      y;
 153         s8      z;
 154 };
 155
 156 struct acpi_lis3lv02d {
 157         struct acpi_device      *device;   /* The ACPI device */
 158         acpi_status (*init) (acpi_handle handle);
 159         acpi_status (*write) (acpi_handle handle, int reg, u8 val);
 160         acpi_status (*read) (acpi_handle handle, int reg, u8 *ret);
 161
 162         struct input_dev        *idev;     /* input device */
 163         struct task_struct      *kthread;  /* kthread for input */
 164         struct mutex            lock;
 165         struct platform_device  *pdev;     /* platform device */
 166         atomic_t                count;     /* interrupt count after last read */
 167         int                     xcalib;    /* calibrated null value for x */
 168         int                     ycalib;    /* calibrated null value for y */
 169         int                     zcalib;    /* calibrated null value for z */
 170         unsigned char           is_on;     /* whether the device is on or off */
 171         unsigned char           usage;     /* usage counter */
 172         struct axis_conversion  ac;        /* hw -> logical axis */
 173 };
 174
 175 int lis3lv02d_init_device(struct acpi_lis3lv02d *dev);
 176 int lis3lv02d_joystick_enable(void);
 177 void lis3lv02d_joystick_disable(void);
 178 void lis3lv02d_poweroff(acpi_handle handle);
 179 void lis3lv02d_poweron(acpi_handle handle);
 180 int lis3lv02d_remove_fs(void);
 181
 182 extern struct acpi_lis3lv02d adev;