88 lines
2.5 KiB
C
88 lines
2.5 KiB
C
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/*
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* Definitions for akm8975 compass chip.
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*/
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#ifndef AKM8975_H
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#define AKM8975_H
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#include <linux/ioctl.h>
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/*! \name AK8975 operation mode
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\anchor AK8975_Mode
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Defines an operation mode of the AK8975.*/
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/*! @{*/
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#define AK8975_MODE_SNG_MEASURE 0x01
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#define AK8975_MODE_SELF_TEST 0x08
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#define AK8975_MODE_FUSE_ACCESS 0x0F
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#define AK8975_MODE_POWER_DOWN 0x00
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/*! @}*/
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#define RBUFF_SIZE 8 /* Rx buffer size */
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/*! \name AK8975 register address
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\anchor AK8975_REG
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Defines a register address of the AK8975.*/
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/*! @{*/
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#define AK8975_REG_WIA 0x00
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#define AK8975_REG_INFO 0x01
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#define AK8975_REG_ST1 0x02
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#define AK8975_REG_HXL 0x03
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#define AK8975_REG_HXH 0x04
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#define AK8975_REG_HYL 0x05
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#define AK8975_REG_HYH 0x06
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#define AK8975_REG_HZL 0x07
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#define AK8975_REG_HZH 0x08
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#define AK8975_REG_ST2 0x09
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#define AK8975_REG_CNTL 0x0A
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#define AK8975_REG_RSV 0x0B
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#define AK8975_REG_ASTC 0x0C
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#define AK8975_REG_TS1 0x0D
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#define AK8975_REG_TS2 0x0E
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#define AK8975_REG_I2CDIS 0x0F
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/*! @}*/
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/*! \name AK8975 fuse-rom address
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\anchor AK8975_FUSE
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Defines a read-only address of the fuse ROM of the AK8975.*/
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/*! @{*/
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#define AK8975_FUSE_ASAX 0x10
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#define AK8975_FUSE_ASAY 0x11
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#define AK8975_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_WRITE _IOW(AKMIO, 0x02, char[5])
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#define ECS_IOCTL_READ _IOWR(AKMIO, 0x03, char[5])
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#define ECS_IOCTL_GETDATA _IOR(AKMIO, 0x08, char[RBUFF_SIZE])
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#define ECS_IOCTL_SET_YPR _IOW(AKMIO, 0x0C, short[12])
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#define ECS_IOCTL_GET_OPEN_STATUS _IOR(AKMIO, 0x0D, int)
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#define ECS_IOCTL_GET_CLOSE_STATUS _IOR(AKMIO, 0x0E, int)
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#define ECS_IOCTL_GET_DELAY _IOR(AKMIO, 0x30, short)
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/* IOCTLs for APPs */
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#define ECS_IOCTL_APP_SET_MFLAG _IOW(AKMIO, 0x11, short)
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#define ECS_IOCTL_APP_GET_MFLAG _IOW(AKMIO, 0x12, short)
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#define ECS_IOCTL_APP_SET_AFLAG _IOW(AKMIO, 0x13, short)
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#define ECS_IOCTL_APP_GET_AFLAG _IOR(AKMIO, 0x14, short)
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#define ECS_IOCTL_APP_SET_DELAY _IOW(AKMIO, 0x18, short)
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#define ECS_IOCTL_APP_GET_DELAY ECS_IOCTL_GET_DELAY
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/* Set raw magnetic vector flag */
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#define ECS_IOCTL_APP_SET_MVFLAG _IOW(AKMIO, 0x19, short)
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/* Get raw magnetic vector flag */
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#define ECS_IOCTL_APP_GET_MVFLAG _IOR(AKMIO, 0x1A, short)
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#define ECS_IOCTL_APP_SET_TFLAG _IOR(AKMIO, 0x15, short)
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struct akm8975_platform_data {
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int intr;
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int (*init)(void);
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void (*exit)(void);
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int (*power_on)(void);
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int (*power_off)(void);
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};
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#endif
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