95 lines
2.6 KiB
C
95 lines
2.6 KiB
C
/*
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* Definitions for akm8963 compass chip.
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*/
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#ifndef AKM8963_H
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#define AKM8963_H
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#include <linux/ioctl.h>
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#define AKM8963_I2C_NAME "akm8963"
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#define SENSOR_DATA_SIZE 8
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#define YPR_DATA_SIZE 12
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#define RWBUF_SIZE 16
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#define ACC_DATA_FLAG 0
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#define MAG_DATA_FLAG 1
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#define ORI_DATA_FLAG 2
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#define AKM_NUM_SENSORS 3
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#define ACC_DATA_READY (1<<(ACC_DATA_FLAG))
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#define MAG_DATA_READY (1<<(MAG_DATA_FLAG))
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#define ORI_DATA_READY (1<<(ORI_DATA_FLAG))
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/*! \name AK8963 constant definition
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\anchor AK8963_Def
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Constant definitions of the AK8963.*/
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#define AK8963_MEASUREMENT_TIME_US 10000
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/*! \name AK8963 operation mode
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\anchor AK8963_Mode
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Defines an operation mode of the AK8963.*/
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/*! @{*/
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#define AK8963_MODE_SNG_MEASURE 0x01
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#define AK8963_MODE_SELF_TEST 0x08
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#define AK8963_MODE_FUSE_ACCESS 0x0F
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#define AK8963_MODE_POWERDOWN 0x00
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/*! @}*/
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/*! \name AK8963 register address
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\anchor AK8963_REG
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Defines a register address of the AK8963.*/
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/*! @{*/
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#define AK8963_REG_WIA 0x00
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#define AK8963_REG_INFO 0x01
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#define AK8963_REG_ST1 0x02
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#define AK8963_REG_HXL 0x03
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#define AK8963_REG_HXH 0x04
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#define AK8963_REG_HYL 0x05
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#define AK8963_REG_HYH 0x06
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#define AK8963_REG_HZL 0x07
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#define AK8963_REG_HZH 0x08
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#define AK8963_REG_ST2 0x09
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#define AK8963_REG_CNTL1 0x0A
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#define AK8963_REG_CNTL2 0x0B
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#define AK8963_REG_ASTC 0x0C
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#define AK8963_REG_TS1 0x0D
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#define AK8963_REG_TS2 0x0E
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#define AK8963_REG_I2CDIS 0x0F
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/*! @}*/
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/*! \name AK8963 fuse-rom address
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\anchor AK8963_FUSE
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Defines a read-only address of the fuse ROM of the AK8963.*/
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/*! @{*/
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#define AK8963_FUSE_ASAX 0x10
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#define AK8963_FUSE_ASAY 0x11
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#define AK8963_FUSE_ASAZ 0x12
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/*! @}*/
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#define AKMIO 0xA1
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/* IOCTLs for AKM library */
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#define ECS_IOCTL_READ _IOWR(AKMIO, 0x01, char*)
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#define ECS_IOCTL_WRITE _IOW(AKMIO, 0x02, char*)
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#define ECS_IOCTL_SET_MODE _IOW(AKMIO, 0x03, short)
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#define ECS_IOCTL_GETDATA _IOR(AKMIO, 0x04, char[SENSOR_DATA_SIZE])
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#define ECS_IOCTL_SET_YPR _IOW(AKMIO, 0x05, int[YPR_DATA_SIZE])
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#define ECS_IOCTL_GET_OPEN_STATUS _IOR(AKMIO, 0x06, int)
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#define ECS_IOCTL_GET_CLOSE_STATUS _IOR(AKMIO, 0x07, int)
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#define ECS_IOCTL_GET_DELAY _IOR(AKMIO, 0x08, long long int[AKM_NUM_SENSORS])
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#define ECS_IOCTL_GET_LAYOUT _IOR(AKMIO, 0x09, char)
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#define ECS_IOCTL_GET_OUTBIT _IOR(AKMIO, 0x0B, char)
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#define ECS_IOCTL_RESET _IO(AKMIO, 0x0C)
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#define ECS_IOCTL_GET_ACCEL _IOR(AKMIO, 0x30, short[3])
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struct akm8963_platform_data {
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char layout;
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char outbit;
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int gpio_DRDY;
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int gpio_RST;
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};
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#endif
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