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/*
* Copyright (c) 2010 NVIDIA Corporation.
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef INCLUDED_NVODM_ACCELEROMETER_BMA150_H
#define INCLUDED_NVODM_ACCELEROMETER_BMA150_H
#if defined(_cplusplus)
extern "C"
{
#endif
#include "nvodm_services.h"
#include "nvodm_accelerometer.h"
/* BMA150 register address */
#define CHIP_ID_REG 0x00
#define VERSION_REG 0x01
#define X_AXIS_LSB_REG 0x02
#define X_AXIS_MSB_REG 0x03
#define Y_AXIS_LSB_REG 0x04
#define Y_AXIS_MSB_REG 0x05
#define Z_AXIS_LSB_REG 0x06
#define Z_AXIS_MSB_REG 0x07
#define TEMP_RD_REG 0x08
#define SMB150_STATUS_REG 0x09
#define SMB150_CTRL_REG 0x0a
#define SMB150_CONF1_REG 0x0b
#define LG_THRESHOLD_REG 0x0c
#define LG_DURATION_REG 0x0d
#define HG_THRESHOLD_REG 0x0e
#define HG_DURATION_REG 0x0f
#define MOTION_THRS_REG 0x10
#define HYSTERESIS_REG 0x11
#define CUSTOMER1_REG 0x12
#define CUSTOMER2_REG 0x13
#define RANGE_BWIDTH_REG 0x14
#define SMB150_CONF2_REG 0x15
#define OFFS_GAIN_X_REG 0x16
#define OFFS_GAIN_Y_REG 0x17
#define OFFS_GAIN_Z_REG 0x18
#define OFFS_GAIN_T_REG 0x19
#define OFFSET_X_REG 0x1a
#define OFFSET_Y_REG 0x1b
#define OFFSET_Z_REG 0x1c
#define OFFSET_T_REG 0x1d
/* range and bandwidth */
#define BMA_RANGE_2G 0
#define BMA_RANGE_4G 1
#define BMA_RANGE_8G 2
#define BMA_BW_25HZ 0
#define BMA_BW_50HZ 1
#define BMA_BW_100HZ 2
#define BMA_BW_190HZ 3
#define BMA_BW_375HZ 4
#define BMA_BW_750HZ 5
#define BMA_BW_1500HZ 6
/* mode settings */
#define BMA_MODE_NORMAL 0
#define BMA_MODE_SLEEP 1
#define BMA150_CHIP_ID 0x02 // RO - device identification
/*
* Defines the threshold source for the accelerometer.
*/
typedef enum
{
/// Indicates the accelerometer generated interrupt by exceeding the x threshold.
NvOdmAccelerometerThresholdSource_X = 0,
/// Indicates the accelerometer generated interrupt by exceeding the y threshold.
NvOdmAccelerometerThresholdSource_Y,
/// Indicates the accelerometer generated interrupt by exceeding the z threshold.
NvOdmAccelerometerThresholdSource_Z,
NvOdmAccelerometerThresholdSource_Force32 = 0x7FFFFFFF
} NvOdmAccelerometerThresholdSource;
// Timeout for I2C transaction.
enum { I2C_ACCELRATOR_TRANSACTION_TIMEOUT = 1000 };
// Maximum number of packetsize supported by the I2C controller.
enum { I2C_ACCELRATOR_PACKET_SIZE = 8};
static NvU8 s_ReadBuffer[I2C_ACCELRATOR_PACKET_SIZE];
static NvU8 s_WriteBuffer[I2C_ACCELRATOR_PACKET_SIZE];
#define INT_EVENT_TIMEOUT 100
#define NV_ACCELEROMETER_BUS_I2C 0
#define NV_ACCELEROMETER_BUS_SPI_3 1
#define NV_ACCELEROMETER_BUS_SPI_4 2
/*
* Defines the way to read accelerometer registers.
*/
typedef NvBool
(*AccelerometerRegsRead)(
NvOdmAccelHandle hDevice,
NvU8 nRegOffset,
NvU8* nData,
NvU32 nLen);
/*
* Defines the way to write accelerometer registers.
*/
typedef NvBool
(*AccelerometerRegsWrite)(
NvOdmAccelHandle hDevice,
NvU8 nRegOffset,
NvU8* nData,
NvU32 nLen);
/*
* Holds register address and value pairs.
*/
typedef struct NvDevCtrlRegRec {
/// Holds the register offset.
NvU8 RegAddr;
/// Holds the value programmed into the upper address.
NvU8 RegValue;
} NvDevCtrlReg;
/*
* Max accelerometer registers number.
*/
#define ACCELEROMETER_CONTROL_REGS_MAX_LENGHT 100
/*
* Max accelerometer callback functions number.
*/
#define ACCELEROMETER_CALLBACK_ARRAY_LENGTH 5
typedef struct NvOdmAccelRec
{
// Specifies use I2C or SPI to configure accelerometer registers.
NvU8 nBusType;
// Specifies accelerometer device address, for example, I2C write address.
NvU8 nDevAddr;
// Specifies the initial value that make accelerometer work,
// ACCELEROMETER_CONTROL_REGS_MAX_LENGHT is always 100.
NvDevCtrlReg CtrlRegsList[ACCELEROMETER_CONTROL_REGS_MAX_LENGHT];
// Specifies the initial CtrlRegsList length.
NvU8 nLength;
// Specifies accelerometer chip ID.
NvU8 nChipID;
// Specifies the way to get accelerometer register information.
AccelerometerRegsRead RegsRead;
// Specifies the way to set accelerometer register information.
AccelerometerRegsWrite RegsWrite;
// Specifies I2C handle from the system.
NvOdmServicesI2cHandle hOdmI2C;
// Interrupt pin to ap15.
NvOdmServicesGpioHandle hGpioINT;
NvOdmGpioPinHandle hPinINT;
NvU32 GPIOPortINT;
NvU32 GPIOPinINT;
NvOdmOsSemaphoreHandle SemaphoreForINT;
NvOdmServicesGpioIntrHandle hGpioInterrupt;
NvOdmAccelIntType Data;
NvOdmServicesPmuHandle hPmu;
NvU32 VddId;
NvU32 I2CChannelId;
NvOdmAccelerometerCaps Caption;
NvOdmAccelPowerType PowerState;
// In real case, when the board put in frontispiece, the value from z axis
// should be g, but due to physical connect on different board, the axis
// should be remapped to the correct one.
NvOdmAccelAxisType AxisXMapping;
// If the physical direct is the same with our expection, the value
// should be set to 1, or else the value should be -1.
NvS32 AxisXDirection;
NvOdmAccelAxisType AxisYMapping;
NvS32 AxisYDirection;
NvOdmAccelAxisType AxisZMapping;
NvS32 AxisZDirection;
} NvOdmAccel;
#if defined(__cplusplus)
}
#endif
#endif
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