/**************************************************************************
作者:Mini Balance
淘宝店铺:http://shop114407458.taobao.com/
**************************************************************************/
/**
* @addtogroup DRIVERS Sensor Driver Layer
* @brief Hardware drivers to communicate with sensors via I2C.
*
* @{
* @file inv_mpu.c
* @brief An I2C-based driver for Invensense gyroscopes.
* @details This driver currently works for the following devices:
* MPU6050
* MPU6500
* MPU9150 (or MPU6050 w/ AK8975 on the auxiliary bus)
* MPU9250 (or MPU6500 w/ AK8963 on the auxiliary bus)
*/
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include "M451Series.h"
#include "IOI2C.h"
#include "dmpkey.h"
#include "inv_mpu_dmp_motion_driver.h"
#include "inv_mpu.h"
#include "dmpmap.h"
#include "SysTick.h"
/* The following functions must be defined for this platform:
* i2c_write(unsigned char slave_addr, unsigned char reg_addr,
* unsigned char length, unsigned char const *data)
* i2c_read(unsigned char slave_addr, unsigned char reg_addr,
* unsigned char length, unsigned char *data)
* delay_ms(unsigned long num_ms)
* get_ms(unsigned long *count)
* reg_int_cb(void (*cb)(void), unsigned char port, unsigned char pin)
* labs(long x)
* fabsf(float x)
* min(int a, int b)
*/
#define MPU6050
#define MOTION_DRIVER_TARGET_MSP430
#if defined MOTION_DRIVER_TARGET_MSP430
/*#include "msp430.h"
#include "msp430_i2c.h"
#include "msp430_clock.h"
#include "msp430_interrupt.h" */
#define i2c_write i2cWrite
#define i2c_read i2cRead
#define delay_ms delay_ms
#define get_ms get_ms
//static int reg_int_cb(struct int_param_s *int_param)
//{
// /*return msp430_reg_int_cb(int_param->cb, int_param->pin, int_param->lp_exit,
// int_param->active_low);*/
// return 0;
//}
//#define log_i(...) do {} while (0)
//#define log_e(...) do {} while (0)
#define log_e printf
#define log_i printf
/* labs is already defined by TI's toolchain. */
/* fabs is for doubles. fabsf is for floats. */
#define fabs fabsf
#define min(a,b) ((a<b)?a:b)
#elif defined EMPL_TARGET_MSP430
/*#include "msp430.h"
#include "msp430_i2c.h"
#include "msp430_clock.h"
#include "msp430_interrupt.h"
#include "log.h"
#define i2c_write msp430_i2c_write
#define i2c_read msp430_i2c_read
#define delay_ms msp430_delay_ms
#define get_ms msp430_get_clock_ms*/
static inline int reg_int_cb(struct int_param_s *int_param)
{
return msp430_reg_int_cb(int_param->cb, int_param->pin, int_param->lp_exit,int_param->active_low);
}
#define log_i MPL_LOGI
#define log_e MPL_LOGE
/* labs is already defined by TI's toolchain. */
/* fabs is for doubles. fabsf is for floats. */
#define fabs fabsf
#define min(a,b) ((a<b)?a:b)
#elif defined EMPL_TARGET_UC3L0
/* Instead of using the standard TWI driver from the ASF library, we're using
* a TWI driver that follows the slave address + register address convention.
*/
#include "twi.h"
#include "delay.h"
#include "sysclk.h"
#include "log.h"
#include "sensors_xplained.h"
#include "uc3l0_clock.h"
#define i2c_write(a, b, c, d) twi_write(a, b, d, c)
#define i2c_read(a, b, c, d) twi_read(a, b, d, c)
/* delay_ms is a function already defined in ASF. */
#define get_ms uc3l0_get_clock_ms
static inline int reg_int_cb(struct int_param_s *int_param)
{
sensor_board_irq_connect(int_param->pin, int_param->cb, int_param->arg);
return 0;
}
#define log_i MPL_LOGI
#define log_e MPL_LOGE
/* UC3 is a 32-bit processor, so abs and labs are equivalent. */
#define labs abs
#define fabs(x) (((x)>0)?(x):-(x))
#else
//#error Gyro driver is missing the system layer implementations.
#endif
#if !defined MPU6050 && !defined MPU9150 && !defined MPU6500 && !defined MPU9250
//#error Which gyro are you using? Define MPUxxxx in your compiler options.
#endif
/* Time for some messy macro work. =]
* #define MPU9150
* is equivalent to..
* #define MPU6050
* #define AK8975_SECONDARY
*
* #define MPU9250
* is equivalent to..
* #define MPU6500
* #define AK8963_SECONDARY
*/
#if defined MPU9150
#ifndef MPU6050
#define MPU6050
#endif /* #ifndef MPU6050 */
#if defined AK8963_SECONDARY
#error "MPU9150 and AK8963_SECONDARY cannot both be defined."
#elif !defined AK8975_SECONDARY /* #if defined AK8963_SECONDARY */
#define AK8975_SECONDARY
#endif /* #if defined AK8963_SECONDARY */
#elif defined MPU9250 /* #if defined MPU9150 */
#ifndef MPU6500
#define MPU6500
#endif /* #ifndef MPU6500 */
#if defined AK8975_SECONDARY
#error "MPU9250 and AK8975_SECONDARY cannot both be defined."
#elif !defined AK8963_SECONDARY /* #if defined AK8975_SECONDARY */
#define AK8963_SECONDARY
#endif /* #if defined AK8975_SECONDARY */
#endif /* #if defined MPU9150 */
#if defined AK8975_SECONDARY || defined AK8963_SECONDARY
#define AK89xx_SECONDARY
#else
/* #warning "No compass = less profit for Invensense. Lame." */
#endif
static int set_int_enable(unsigned char enable);
/* Hardware registers needed by driver. */
struct gyro_reg_s
{
unsigned char who_am_i;
unsigned char rate_div;
unsigned char lpf;
unsigned char prod_id;
unsigned char user_ctrl;
unsigned char fifo_en;
unsigned char gyro_cfg;
unsigned char accel_cfg;
//unsigned char accel_cfg2;
//unsigned char lp_accel_odr;
unsigned char motion_thr;
unsigned char motion_dur;
unsigned char fifo_count_h;
unsigned char fifo_r_w;
unsigned char raw_gyro;
unsigned char raw_accel;
unsigned char temp;
unsigned char int_enable;
unsigned char dmp_int_status;
unsigned char int_status;
//unsigned char accel_intel;
unsigned char pwr_mgmt_1;
unsigned char pwr_mgmt_2;
unsigned char int_pin_cfg;
unsigned char mem_r_w;
unsigned char accel_offs;
unsigned char i2c_mst;
unsigned char bank_sel;
unsigned char mem_start_addr;
unsigned char prgm_start_h;
#if defined AK89xx_SECONDARY
unsigned char s0_addr;
unsigned char s0_reg;
unsigned char s0_ctrl;
unsigned char s1_addr;
unsigned char s1_reg;
unsigned char s1_ctrl;
unsigned char s4_ctrl;
unsigned char s0_do;
unsigned char s1_do;
unsigned char i2c_delay_ctrl;
unsigned char raw_compass;
/* The I2C_MST_VDDIO bit is in this register. */
unsigned char yg_offs_tc;
#endif
};
/* Information specific to a particular device. */
struct hw_s {
unsigned char addr;
unsigned short max_fifo;
unsigned char num_reg;
unsigned short temp_sens;
short temp_offset;
unsigned short bank_size;
#if defined AK89xx_SECONDARY
unsigned short compass_fsr;
#endif
};
/* When entering motion interrupt mode, the driver keeps track of the
* previous state so that it can be restored at a later time.
* TODO: This is tacky. Fix it.
*/
struct motion_int_cache_s {
unsigned short gyro_fsr;
unsigned char accel_fsr;
unsigned short lpf;
unsigned short sample_rate;
unsigned char sensors_on;
unsigned char fifo_sensors;
unsigned char dmp_on;
};
/* Cached chip configuration data.
* TODO: A lot of these can be handled with a bitmask.
*/
struct chip_cfg_s
{
/* Matches gyro_cfg >> 3 & 0x03 */
unsigned char gyro_fsr;
/* Matches accel_cfg >> 3 & 0x03 */
unsigned char accel_fsr;
/* Enabled sensors. Uses same masks as fifo_en, NOT pwr_mgmt_2. */
unsigned char sensors;
/* Matches config regi
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