bma250.zip_BMA250.c_bma250_bma250 51程序_leafy3u_squaree9c

/* Date: 2011/4/8 11:00:00 * Revision: 2.5 */ /* * This software program is licensed subject to the GNU General Public License * (GPL).Version 2,June 1991, available at http://www.fsf.org/copyleft/gpl.html * (C) Copyright 2011 Bosch Sensortec GmbH * All Rights Reserved */ /* file BMA250.c brief This file contains all function implementations for the BMA250 in linux */ #include <linux/module.h> #include <linux/init.h> #include <linux/i2c.h> #include <linux/input.h> #include <linux/workqueue.h> #include <linux/mutex.h> #include <linux/slab.h> #include <linux/mutex.h> #include <linux/init-input.h> //#include <mach/system.h> #include <mach/hardware.h> #ifdef CONFIG_HAS_EARLYSUSPEND #include <linux/earlysuspend.h> #endif #if defined(CONFIG_HAS_EARLYSUSPEND) || defined(CONFIG_PM) #include <linux/pm.h> #endif enum { DEBUG_INIT = 1U << 0, DEBUG_CONTROL_INFO = 1U << 1, DEBUG_DATA_INFO = 1U << 2, DEBUG_SUSPEND = 1U << 3, }; static u32 debug_mask = 0; #define dprintk(level_mask, fmt, arg...) if (unlikely(debug_mask & level_mask)) \ printk(KERN_DEBUG fmt , ## arg) //#define dprintk(level_mask, fmt, arg...) printk(fmt, ## arg) module_param_named(debug_mask, debug_mask, int, 0644); #define SENSOR_NAME "bma250" #define GRAVITY_EARTH 9806550 #define ABSMIN_2G (-GRAVITY_EARTH * 2) #define ABSMAX_2G (GRAVITY_EARTH * 2) #define SLOPE_THRESHOLD_VALUE 32 #define SLOPE_DURATION_VALUE 1 #define INTERRUPT_LATCH_MODE 13 #define INTERRUPT_ENABLE 1 #define INTERRUPT_DISABLE 0 #define MAP_SLOPE_INTERRUPT 2 #define SLOPE_X_INDEX 5 #define SLOPE_Y_INDEX 6 #define SLOPE_Z_INDEX 7 #define BMA250_MAX_DELAY 200 #define BMA150_CHIP_ID 2 #define BMA250_CHIP_ID 3 #define BMA250E_CHIP_ID 0xF9 #define BMA250_RANGE_SET 0 #define BMA250_BW_SET 4 /* * * register definitions * */ #define BMA250_CHIP_ID_REG 0x00 #define BMA250_VERSION_REG 0x01 #define BMA250_X_AXIS_LSB_REG 0x02 #define BMA250_X_AXIS_MSB_REG 0x03 #define BMA250_Y_AXIS_LSB_REG 0x04 #define BMA250_Y_AXIS_MSB_REG 0x05 #define BMA250_Z_AXIS_LSB_REG 0x06 #define BMA250_Z_AXIS_MSB_REG 0x07 #define BMA250_TEMP_RD_REG 0x08 #define BMA250_STATUS1_REG 0x09 #define BMA250_STATUS2_REG 0x0A #define BMA250_STATUS_TAP_SLOPE_REG 0x0B #define BMA250_STATUS_ORIENT_HIGH_REG 0x0C #define BMA250_RANGE_SEL_REG 0x0F #define BMA250_BW_SEL_REG 0x10 #define BMA250_MODE_CTRL_REG 0x11 #define BMA250_LOW_NOISE_CTRL_REG 0x12 #define BMA250_DATA_CTRL_REG 0x13 #define BMA250_RESET_REG 0x14 #define BMA250_INT_ENABLE1_REG 0x16 #define BMA250_INT_ENABLE2_REG 0x17 #define BMA250_INT1_PAD_SEL_REG 0x19 #define BMA250_INT_DATA_SEL_REG 0x1A #define BMA250_INT2_PAD_SEL_REG 0x1B #define BMA250_INT_SRC_REG 0x1E #define BMA250_INT_SET_REG 0x20 #define BMA250_INT_CTRL_REG 0x21 #define BMA250_LOW_DURN_REG 0x22 #define BMA250_LOW_THRES_REG 0x23 #define BMA250_LOW_HIGH_HYST_REG 0x24 #define BMA250_HIGH_DURN_REG 0x25 #define BMA250_HIGH_THRES_REG 0x26 #define BMA250_SLOPE_DURN_REG 0x27 #define BMA250_SLOPE_THRES_REG 0x28 #define BMA250_TAP_PARAM_REG 0x2A #define BMA250_TAP_THRES_REG 0x2B #define BMA250_ORIENT_PARAM_REG 0x2C #define BMA250_THETA_BLOCK_REG 0x2D #define BMA250_THETA_FLAT_REG 0x2E #define BMA250_FLAT_HOLD_TIME_REG 0x2F #define BMA250_STATUS_LOW_POWER_REG 0x31 #define BMA250_SELF_TEST_REG 0x32 #define BMA250_EEPROM_CTRL_REG 0x33 #define BMA250_SERIAL_CTRL_REG 0x34 #define BMA250_CTRL_UNLOCK_REG 0x35 #define BMA250_OFFSET_CTRL_REG 0x36 #define BMA250_OFFSET_PARAMS_REG 0x37 #define BMA250_OFFSET_FILT_X_REG 0x38 #define BMA250_OFFSET_FILT_Y_REG 0x39 #define BMA250_OFFSET_FILT_Z_REG 0x3A #define BMA250_OFFSET_UNFILT_X_REG 0x3B #define BMA250_OFFSET_UNFILT_Y_REG 0x3C #define BMA250_OFFSET_UNFILT_Z_REG 0x3D #define BMA250_SPARE_0_REG 0x3E #define BMA250_SPARE_1_REG 0x3F #define BMA250_ACC_X_LSB__POS 6 #define BMA250_ACC_X_LSB__LEN 2 #define BMA250_ACC_X_LSB__MSK 0xC0 #define BMA250_ACC_X_LSB__REG BMA250_X_AXIS_LSB_REG #define BMA250_ACC_X_MSB__POS 0 #define BMA250_ACC_X_MSB__LEN 8 #define BMA250_ACC_X_MSB__MSK 0xFF #define BMA250_ACC_X_MSB__REG BMA250_X_AXIS_MSB_REG #define BMA250_ACC_Y_LSB__POS 6 #define BMA250_ACC_Y_LSB__LEN 2 #define BMA250_ACC_Y_LSB__MSK 0xC0 #define BMA250_ACC_Y_LSB__REG BMA250_Y_AXIS_LSB_REG #define BMA250_ACC_Y_MSB__POS 0 #define BMA250_ACC_Y_MSB__LEN 8 #define BMA250_ACC_Y_MSB__MSK 0xFF #define BMA250_ACC_Y_MSB__REG BMA250_Y_AXIS_MSB_REG #define BMA250_ACC_Z_LSB__POS 6 #define BMA250_ACC_Z_LSB__LEN 2 #define BMA250_ACC_Z_LSB__MSK 0xC0 #define BMA250_ACC_Z_LSB__REG BMA250_Z_AXIS_LSB_REG #define BMA250_ACC_Z_MSB__POS 0 #define BMA250_ACC_Z_MSB__LEN 8 #define BMA250_ACC_Z_MSB__MSK 0xFF #define BMA250_ACC_Z_MSB__REG BMA250_Z_AXIS_MSB_REG #define BMA250_RANGE_SEL__POS 0 #define BMA250_RANGE_SEL__LEN 4 #define BMA250_RANGE_SEL__MSK 0x0F #define BMA250_RANGE_SEL__REG BMA250_RANGE_SEL_REG #define BMA250_BANDWIDTH__POS 0 #define BMA250_BANDWIDTH__LEN 5 #define BMA250_BANDWIDTH__MSK 0x1F #define BMA250_BANDWIDTH__REG BMA250_BW_SEL_REG #define BMA250_EN_LOW_POWER__POS 6 #define BMA250_EN_LOW_POWER__LEN 1 #define BMA250_EN_LOW_POWER__MSK 0x40 #define BMA250_EN_LOW_POWER__REG BMA250_MODE_CTRL_REG #define BMA250_EN_SUSPEND__POS 7 #define BMA250_EN_SUSPEND__LEN 1 #define BMA250_EN_SUSPEND__MSK 0x80 #define BMA250_EN_SUSPEND__REG BMA250_MODE_CTRL_REG #define BMA250_GET_BITSLICE(regvar, bitname)\ ((regvar & bitname##__MSK) >> bitname##__POS) #define BMA250_SET_BITSLICE(regvar, bitname, val)\ ((regvar & ~bitname##__MSK) | ((val<<bitname##__POS)&bitname##__MSK)) /* range and bandwidth */ #define BMA250_RANGE_2G 0 #define BMA250_RANGE_4G 1 #define BMA250_RANGE_8G 2 #define BMA250_RANGE_16G 3 #define BMA250_BW_7_81HZ 0x08 #define BMA250_BW_15_63HZ 0x09 #define BMA250_BW_31_25