accel.h

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#ifndef HAL_CMA3000_H
#define HAL_CMA3000_H

#include <stdint.h>
#include "logger.h"

#define DOUTX       0x06
#define DOUTY       0x07
#define DOUTZ       0x08

// CONSTANTS
#define TICKSPERUS              (F_CPU/ 1000000)

// PORT DEFINITIONS
#define ACCEL_INT_IN            P2IN
#define ACCEL_INT_OUT           P2OUT
#define ACCEL_INT_DIR           P2DIR
#define ACCEL_SCK_SEL           P2SEL
#define ACCEL_INT_IE            P2IE
#define ACCEL_INT_IES           P2IES
#define ACCEL_INT_IFG           P2IFG
#define ACCEL_INT_VECTOR        PORT2_VECTOR
#define ACCEL_OUT               P3OUT
#define ACCEL_DIR               P3DIR
#define ACCEL_SEL               P3SEL

// PIN DEFINITIONS
#define ACCEL_INT               BIT5
#define ACCEL_CS                BIT5
#define ACCEL_SIMO              BIT3
#define ACCEL_SOMI              BIT4
#define ACCEL_SCK               BIT7
#define ACCEL_PWR               BIT6

// ACCELEROMETER REGISTER DEFINITIONS
#define REVID                   0x01
#define CTRL                    0x02
#define MODE_400                0x04        // Measurement mode 400 Hz ODR
#define DOUTX                   0x06
#define DOUTY                   0x07
#define DOUTZ                   0x08
#define G_RANGE_2               0x80        // 2g range
#define I2C_DIS                 0x10        // I2C disabled

extern int8_t Cma3000_xAccel;
extern int8_t Cma3000_yAccel;
extern int8_t Cma3000_zAccel;

typedef enum accel_state_t
{
    STATE_ACCEL_NONE,
    STATE_ACCEL_XREQ,
    STATE_ACCEL_XRDY,
    STATE_ACCEL_YREQ,
    STATE_ACCEL_YRDY,
    STATE_ACCEL_ZREQ,
    STATE_ACCEL_ZRDY,
    STATE_ACCEL_DONE
} accel_state_t;

extern void Cma3000_init(volatile SampleBuffer *samplebuffer);
extern void Cma3000_disable(void);
extern void Cma3000_readAccel(void);
extern int8_t Cma3000_readRegister(uint8_t Address);
void Cma3000_readAccelFSM(void);
accel_state_t Cma3000_getState(void);
extern int8_t Cma3000_writeRegister(uint8_t Address, int8_t Data);

#endif /* HAL_MENU_H */