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/* SCP sensor hub driver
*
*
* 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
*/
#ifndef SCP_SENSOR_HUB_H
#define SCP_SENSOR_HUB_H
#include <linux/ioctl.h>
#include <cust_acc.h>
#define SCP_SENSOR_HUB_TEMP_BUFSIZE 256
#define SCP_SENSOR_HUB_FIFO_SIZE 32768
#define SCP_SENSOR_HUB_SUCCESS 0
#define SCP_SENSOR_HUB_FAILURE (-1)
struct scp_acc_hw {
int i2c_num; /*!< the i2c bus used by the chip */
int direction; /*!< the direction of the chip */
int power_id; /*!< the VDD LDO ID of the chip, MT6516_POWER_NONE means the power is always on */
int power_vol; /*!< the VDD Power Voltage used by the chip */
int firlen; /*!< the length of low pass filter */
int reserved;
unsigned char i2c_addr[G_CUST_I2C_ADDR_NUM]; /*!< i2c address list,for chips which has different addresses with different HW layout */
int power_vio_id; /*!< the VIO LDO ID of the chip, MT6516_POWER_NONE means the power is always on */
int power_vio_vol; /*!< the VIO Power Voltage used by the chip */
bool is_batch_supported;
};
typedef enum{
SENSOR_HUB_ACTIVATE = 0,
SENSOR_HUB_SET_DELAY,
SENSOR_HUB_GET_DATA,
SENSOR_HUB_BATCH,
SENSOR_HUB_SET_CONFIG,
SENSOR_HUB_SET_CUST,
SENSOR_HUB_NOTIFY,
}SCP_ACTION;
typedef enum{
SCP_INIT_DONE = 0,
SCP_FIFO_FULL,
SCP_NOTIFY,
}SCP_NOTIFY_EVENT;
struct SCP_sensorData{
uint8_t dataLength;
uint8_t sensorType;
uint8_t reserve[2];
uint32_t timeStampH;
uint32_t timeStampL;
int16_t data[8];
};
struct sensorFIFO {
// volatile struct SCP_sensorData * volatile rp;
// volatile struct SCP_sensorData * volatile wp;
int rp; //use int for store DRAM FIFO LSB 32bit read pointer
int wp;
uint32_t FIFOSize;
struct SCP_sensorData data[0];
};
typedef struct{
uint32_t sensorType;
SCP_ACTION action;
uint32_t data[10];
}SCP_SENSOR_HUB_REQ;
typedef struct{
uint32_t sensorType;
SCP_ACTION action;
uint32_t errCode;
//uint32_t reserved[9];
}SCP_SENSOR_HUB_RSP;
typedef struct{
uint32_t sensorType;
SCP_ACTION action;
uint32_t enable; //0 : disable ; 1 : enable
//uint32_t reserved[9];
}SCP_SENSOR_HUB_ACTIVATE_REQ;
typedef SCP_SENSOR_HUB_RSP SCP_SENSOR_HUB_ACTIVATE_RSP;
typedef struct{
uint32_t sensorType;
SCP_ACTION action;
uint32_t delay; //ms
//uint32_t reserved[9];
}SCP_SENSOR_HUB_SET_DELAY_REQ;
typedef SCP_SENSOR_HUB_RSP SCP_SENSOR_HUB_SET_DELAY_RSP;
typedef struct{
uint32_t sensorType;
SCP_ACTION action;
//uint32_t reserved[10];
}SCP_SENSOR_HUB_GET_DATA_REQ;
typedef struct{
uint32_t sensorType;
SCP_ACTION action;
uint32_t errCode;
union{
int8_t int8_Data[0];
int16_t int16_Data[0];
int32_t int32_Data[0];
};
}SCP_SENSOR_HUB_GET_DATA_RSP;
typedef struct{
uint32_t sensorType;
SCP_ACTION action;
uint32_t flag; //see SENSORS_BATCH_WAKE_UPON_FIFO_FULL definition in hardware/libhardware/include/hardware/sensors.h
uint32_t period_ms; //batch reporting time in ms
uint32_t timeout_ms; //sampling time in ms
//uint32_t reserved[7];
}SCP_SENSOR_HUB_BATCH_REQ;
typedef SCP_SENSOR_HUB_RSP SCP_SENSOR_HUB_BATCH_RSP;
typedef struct{
uint32_t sensorType;
SCP_ACTION action;
//struct sensorFIFO *bufferBase;
int bufferBase; //use int to store buffer DRAM base LSB 32 bits
uint32_t bufferSize;
//uint32_t reserved[8];
}SCP_SENSOR_HUB_SET_CONFIG_REQ;
typedef SCP_SENSOR_HUB_RSP SCP_SENSOR_HUB_SET_CONFIG_RSP;
typedef struct{
uint32_t sensorType;
SCP_ACTION action;
uint32_t custData[10];
}SCP_SENSOR_HUB_SET_CUST_REQ;
typedef struct{
uint32_t sensorType;
SCP_ACTION action;
uint32_t errCode;
uint32_t custData[0];
}SCP_SENSOR_HUB_SET_CUST_RSP;
typedef struct{
uint32_t sensorType;
SCP_ACTION action;
SCP_NOTIFY_EVENT event;
uint32_t data[0];
}SCP_SENSOR_HUB_NOTIFY_RSP;
typedef union{
SCP_SENSOR_HUB_REQ req;
SCP_SENSOR_HUB_RSP rsp;
SCP_SENSOR_HUB_ACTIVATE_REQ activate_req;
SCP_SENSOR_HUB_ACTIVATE_RSP activate_rsp;
SCP_SENSOR_HUB_SET_DELAY_REQ set_delay_req;
SCP_SENSOR_HUB_SET_DELAY_RSP set_delay_rsp;
SCP_SENSOR_HUB_GET_DATA_REQ get_data_req;
SCP_SENSOR_HUB_GET_DATA_RSP get_data_rsp;
SCP_SENSOR_HUB_BATCH_REQ batch_req;
SCP_SENSOR_HUB_BATCH_RSP batch_rsp;
SCP_SENSOR_HUB_SET_CONFIG_REQ set_config_req;
SCP_SENSOR_HUB_SET_CONFIG_RSP set_config_rsp;
SCP_SENSOR_HUB_SET_CUST_REQ set_cust_req;
SCP_SENSOR_HUB_SET_CUST_RSP set_cust_rsp;
SCP_SENSOR_HUB_NOTIFY_RSP notify_rsp;
}SCP_SENSOR_HUB_DATA, *SCP_SENSOR_HUB_DATA_P;
typedef int (*SCP_sensorHub_handler)(void* data, uint len);
int SCP_sensorHub_req_send(SCP_SENSOR_HUB_DATA_P data, uint *len, unsigned int wait);
int SCP_sensorHub_rsp_registration(int sensor, SCP_sensorHub_handler handler);
#endif
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