2 * lis3lv02d.h - ST LIS3LV02DL accelerometer driver
4 * Copyright (C) 2007-2008 Yan Burman
5 * Copyright (C) 2008 Eric Piel
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.
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.
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
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.
29 #define LIS3LV02DL_ID 0x3A /* Also the LIS3LV02DQ */
30 #define LIS302DL_ID 0x3B /* Also the LIS202DL! */
43 HP_FILTER_RESET = 0x23,
56 FF_WU_DURATION = 0x36,
66 enum lis3lv02d_ctrl1 {
76 enum lis3lv02d_ctrl2 {
83 CTRL2_BDU = 0x40, /* Block Data Update */
84 CTRL2_FS = 0x80, /* Full Scale selection */
88 enum lis3lv02d_ctrl3 {
97 enum lis3lv02d_status_reg {
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,
119 enum lis3lv02d_ff_wu_src {
129 enum lis3lv02d_dd_cfg {
140 enum lis3lv02d_dd_src {
150 struct axis_conversion {
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);
162 struct input_dev *idev; /* input device */
163 struct task_struct *kthread; /* kthread for input */
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 */
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);
182 extern struct acpi_lis3lv02d adev;