2008-11-12 22:27:02 +01:00
|
|
|
/*
|
|
|
|
* lis3lv02d.h - ST LIS3LV02DL accelerometer driver
|
|
|
|
*
|
|
|
|
* Copyright (C) 2007-2008 Yan Burman
|
|
|
|
* Copyright (C) 2008 Eric Piel
|
|
|
|
*
|
|
|
|
* This program is free software; you can redistribute it and/or modify
|
|
|
|
* it under the terms of the GNU General Public License as published by
|
|
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
|
|
* (at your option) any later version.
|
|
|
|
*
|
|
|
|
* This program is distributed in the hope that it will be useful,
|
|
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
* GNU General Public License for more details.
|
|
|
|
*
|
|
|
|
* You should have received a copy of the GNU General Public License
|
|
|
|
* along with this program; if not, write to the Free Software
|
|
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
|
|
*/
|
|
|
|
|
|
|
|
/*
|
|
|
|
* The actual chip is STMicroelectronics LIS3LV02DL or LIS3LV02DQ that seems to
|
|
|
|
* be connected via SPI. There exists also several similar chips (such as LIS302DL or
|
2009-02-18 23:48:24 +01:00
|
|
|
* LIS3L02DQ) and they have slightly different registers, but we can provide a
|
|
|
|
* common interface for all of them.
|
2009-01-10 01:41:01 +01:00
|
|
|
* They can also be connected via I²C.
|
2008-11-12 22:27:02 +01:00
|
|
|
*/
|
|
|
|
|
2009-02-18 23:48:24 +01:00
|
|
|
/* 2-byte registers */
|
|
|
|
#define LIS_DOUBLE_ID 0x3A /* LIS3LV02D[LQ] */
|
|
|
|
/* 1-byte registers */
|
|
|
|
#define LIS_SINGLE_ID 0x3B /* LIS[32]02DL and others */
|
2008-11-12 22:27:02 +01:00
|
|
|
|
|
|
|
enum lis3lv02d_reg {
|
|
|
|
WHO_AM_I = 0x0F,
|
|
|
|
OFFSET_X = 0x16,
|
|
|
|
OFFSET_Y = 0x17,
|
|
|
|
OFFSET_Z = 0x18,
|
|
|
|
GAIN_X = 0x19,
|
|
|
|
GAIN_Y = 0x1A,
|
|
|
|
GAIN_Z = 0x1B,
|
|
|
|
CTRL_REG1 = 0x20,
|
|
|
|
CTRL_REG2 = 0x21,
|
|
|
|
CTRL_REG3 = 0x22,
|
|
|
|
HP_FILTER_RESET = 0x23,
|
|
|
|
STATUS_REG = 0x27,
|
|
|
|
OUTX_L = 0x28,
|
|
|
|
OUTX_H = 0x29,
|
2009-02-18 23:48:24 +01:00
|
|
|
OUTX = 0x29,
|
2008-11-12 22:27:02 +01:00
|
|
|
OUTY_L = 0x2A,
|
|
|
|
OUTY_H = 0x2B,
|
2009-02-18 23:48:24 +01:00
|
|
|
OUTY = 0x2B,
|
2008-11-12 22:27:02 +01:00
|
|
|
OUTZ_L = 0x2C,
|
|
|
|
OUTZ_H = 0x2D,
|
2009-02-18 23:48:24 +01:00
|
|
|
OUTZ = 0x2D,
|
2008-11-12 22:27:02 +01:00
|
|
|
FF_WU_CFG = 0x30,
|
|
|
|
FF_WU_SRC = 0x31,
|
|
|
|
FF_WU_ACK = 0x32,
|
|
|
|
FF_WU_THS_L = 0x34,
|
|
|
|
FF_WU_THS_H = 0x35,
|
|
|
|
FF_WU_DURATION = 0x36,
|
|
|
|
DD_CFG = 0x38,
|
|
|
|
DD_SRC = 0x39,
|
|
|
|
DD_ACK = 0x3A,
|
|
|
|
DD_THSI_L = 0x3C,
|
|
|
|
DD_THSI_H = 0x3D,
|
|
|
|
DD_THSE_L = 0x3E,
|
|
|
|
DD_THSE_H = 0x3F,
|
|
|
|
};
|
|
|
|
|
|
|
|
enum lis3lv02d_ctrl1 {
|
|
|
|
CTRL1_Xen = 0x01,
|
|
|
|
CTRL1_Yen = 0x02,
|
|
|
|
CTRL1_Zen = 0x04,
|
|
|
|
CTRL1_ST = 0x08,
|
|
|
|
CTRL1_DF0 = 0x10,
|
|
|
|
CTRL1_DF1 = 0x20,
|
|
|
|
CTRL1_PD0 = 0x40,
|
|
|
|
CTRL1_PD1 = 0x80,
|
|
|
|
};
|
|
|
|
enum lis3lv02d_ctrl2 {
|
|
|
|
CTRL2_DAS = 0x01,
|
|
|
|
CTRL2_SIM = 0x02,
|
|
|
|
CTRL2_DRDY = 0x04,
|
|
|
|
CTRL2_IEN = 0x08,
|
|
|
|
CTRL2_BOOT = 0x10,
|
|
|
|
CTRL2_BLE = 0x20,
|
|
|
|
CTRL2_BDU = 0x40, /* Block Data Update */
|
|
|
|
CTRL2_FS = 0x80, /* Full Scale selection */
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
enum lis3lv02d_ctrl3 {
|
|
|
|
CTRL3_CFS0 = 0x01,
|
|
|
|
CTRL3_CFS1 = 0x02,
|
|
|
|
CTRL3_FDS = 0x10,
|
|
|
|
CTRL3_HPFF = 0x20,
|
|
|
|
CTRL3_HPDD = 0x40,
|
|
|
|
CTRL3_ECK = 0x80,
|
|
|
|
};
|
|
|
|
|
|
|
|
enum lis3lv02d_status_reg {
|
|
|
|
STATUS_XDA = 0x01,
|
|
|
|
STATUS_YDA = 0x02,
|
|
|
|
STATUS_ZDA = 0x04,
|
|
|
|
STATUS_XYZDA = 0x08,
|
|
|
|
STATUS_XOR = 0x10,
|
|
|
|
STATUS_YOR = 0x20,
|
|
|
|
STATUS_ZOR = 0x40,
|
|
|
|
STATUS_XYZOR = 0x80,
|
|
|
|
};
|
|
|
|
|
|
|
|
enum lis3lv02d_ff_wu_cfg {
|
|
|
|
FF_WU_CFG_XLIE = 0x01,
|
|
|
|
FF_WU_CFG_XHIE = 0x02,
|
|
|
|
FF_WU_CFG_YLIE = 0x04,
|
|
|
|
FF_WU_CFG_YHIE = 0x08,
|
|
|
|
FF_WU_CFG_ZLIE = 0x10,
|
|
|
|
FF_WU_CFG_ZHIE = 0x20,
|
|
|
|
FF_WU_CFG_LIR = 0x40,
|
|
|
|
FF_WU_CFG_AOI = 0x80,
|
|
|
|
};
|
|
|
|
|
|
|
|
enum lis3lv02d_ff_wu_src {
|
|
|
|
FF_WU_SRC_XL = 0x01,
|
|
|
|
FF_WU_SRC_XH = 0x02,
|
|
|
|
FF_WU_SRC_YL = 0x04,
|
|
|
|
FF_WU_SRC_YH = 0x08,
|
|
|
|
FF_WU_SRC_ZL = 0x10,
|
|
|
|
FF_WU_SRC_ZH = 0x20,
|
|
|
|
FF_WU_SRC_IA = 0x40,
|
|
|
|
};
|
|
|
|
|
|
|
|
enum lis3lv02d_dd_cfg {
|
|
|
|
DD_CFG_XLIE = 0x01,
|
|
|
|
DD_CFG_XHIE = 0x02,
|
|
|
|
DD_CFG_YLIE = 0x04,
|
|
|
|
DD_CFG_YHIE = 0x08,
|
|
|
|
DD_CFG_ZLIE = 0x10,
|
|
|
|
DD_CFG_ZHIE = 0x20,
|
|
|
|
DD_CFG_LIR = 0x40,
|
|
|
|
DD_CFG_IEND = 0x80,
|
|
|
|
};
|
|
|
|
|
|
|
|
enum lis3lv02d_dd_src {
|
|
|
|
DD_SRC_XL = 0x01,
|
|
|
|
DD_SRC_XH = 0x02,
|
|
|
|
DD_SRC_YL = 0x04,
|
|
|
|
DD_SRC_YH = 0x08,
|
|
|
|
DD_SRC_ZL = 0x10,
|
|
|
|
DD_SRC_ZH = 0x20,
|
|
|
|
DD_SRC_IA = 0x40,
|
|
|
|
};
|
|
|
|
|
2009-01-10 01:41:01 +01:00
|
|
|
struct axis_conversion {
|
|
|
|
s8 x;
|
|
|
|
s8 y;
|
|
|
|
s8 z;
|
|
|
|
};
|
|
|
|
|
|
|
|
struct acpi_lis3lv02d {
|
|
|
|
struct acpi_device *device; /* The ACPI device */
|
|
|
|
acpi_status (*init) (acpi_handle handle);
|
|
|
|
acpi_status (*write) (acpi_handle handle, int reg, u8 val);
|
|
|
|
acpi_status (*read) (acpi_handle handle, int reg, u8 *ret);
|
|
|
|
|
2009-02-18 23:48:24 +01:00
|
|
|
u8 whoami; /* 3Ah: 2-byte registries, 3Bh: 1-byte registries */
|
|
|
|
s16 (*read_data) (acpi_handle handle, int reg);
|
|
|
|
int mdps_max_val;
|
|
|
|
|
2009-01-10 01:41:01 +01:00
|
|
|
struct input_dev *idev; /* input device */
|
|
|
|
struct task_struct *kthread; /* kthread for input */
|
|
|
|
struct mutex lock;
|
|
|
|
struct platform_device *pdev; /* platform device */
|
|
|
|
atomic_t count; /* interrupt count after last read */
|
|
|
|
int xcalib; /* calibrated null value for x */
|
|
|
|
int ycalib; /* calibrated null value for y */
|
|
|
|
int zcalib; /* calibrated null value for z */
|
|
|
|
unsigned char is_on; /* whether the device is on or off */
|
|
|
|
unsigned char usage; /* usage counter */
|
|
|
|
struct axis_conversion ac; /* hw -> logical axis */
|
2009-02-18 23:48:23 +01:00
|
|
|
|
|
|
|
u32 irq; /* IRQ number */
|
|
|
|
struct fasync_struct *async_queue; /* queue for the misc device */
|
|
|
|
wait_queue_head_t misc_wait; /* Wait queue for the misc device */
|
|
|
|
unsigned long misc_opened; /* bit0: whether the device is open */
|
2009-01-10 01:41:01 +01:00
|
|
|
};
|
|
|
|
|
|
|
|
int lis3lv02d_init_device(struct acpi_lis3lv02d *dev);
|
|
|
|
int lis3lv02d_joystick_enable(void);
|
|
|
|
void lis3lv02d_joystick_disable(void);
|
|
|
|
void lis3lv02d_poweroff(acpi_handle handle);
|
|
|
|
void lis3lv02d_poweron(acpi_handle handle);
|
|
|
|
int lis3lv02d_remove_fs(void);
|
|
|
|
|
|
|
|
extern struct acpi_lis3lv02d adev;
|