diff options
Diffstat (limited to 'include/linux/akm8963.h')
| -rw-r--r-- | include/linux/akm8963.h | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/include/linux/akm8963.h b/include/linux/akm8963.h new file mode 100644 index 00000000..788e094c --- /dev/null +++ b/include/linux/akm8963.h @@ -0,0 +1,96 @@ +/* + * Definitions for akm8963 compass chip. + */ +#ifndef AKM8963_H +#define AKM8963_H + +#include <linux/ioctl.h> + +#define AKM8963_I2C_NAME "akm8963" +#define AKM8963_I2C_ADDR 0x0C + +#define SENSOR_DATA_SIZE 8 +#define YPR_DATA_SIZE 12 +#define RWBUF_SIZE 16 + +#define ACC_DATA_FLAG 0 +#define MAG_DATA_FLAG 1 +#define ORI_DATA_FLAG 2 +#define AKM_NUM_SENSORS 3 + +#define ACC_DATA_READY (1<<(ACC_DATA_FLAG)) +#define MAG_DATA_READY (1<<(MAG_DATA_FLAG)) +#define ORI_DATA_READY (1<<(ORI_DATA_FLAG)) + +/*! \name AK8963 constant definition + \anchor AK8963_Def + Constant definitions of the AK8963.*/ +#define AK8963_MEASUREMENT_TIME_US 10000 + +/*! \name AK8963 operation mode + \anchor AK8963_Mode + Defines an operation mode of the AK8963.*/ +/*! @{*/ +#define AK8963_MODE_SNG_MEASURE 0x01 +#define AK8963_MODE_SELF_TEST 0x08 +#define AK8963_MODE_FUSE_ACCESS 0x0F +#define AK8963_MODE_POWERDOWN 0x00 + +/*! @}*/ + +/*! \name AK8963 register address +\anchor AK8963_REG +Defines a register address of the AK8963.*/ +/*! @{*/ +#define AK8963_REG_WIA 0x00 +#define AK8963_REG_INFO 0x01 +#define AK8963_REG_ST1 0x02 +#define AK8963_REG_HXL 0x03 +#define AK8963_REG_HXH 0x04 +#define AK8963_REG_HYL 0x05 +#define AK8963_REG_HYH 0x06 +#define AK8963_REG_HZL 0x07 +#define AK8963_REG_HZH 0x08 +#define AK8963_REG_ST2 0x09 +#define AK8963_REG_CNTL1 0x0A +#define AK8963_REG_CNTL2 0x0B +#define AK8963_REG_ASTC 0x0C +#define AK8963_REG_TS1 0x0D +#define AK8963_REG_TS2 0x0E +#define AK8963_REG_I2CDIS 0x0F +/*! @}*/ + +/*! \name AK8963 fuse-rom address +\anchor AK8963_FUSE +Defines a read-only address of the fuse ROM of the AK8963.*/ +/*! @{*/ +#define AK8963_FUSE_ASAX 0x10 +#define AK8963_FUSE_ASAY 0x11 +#define AK8963_FUSE_ASAZ 0x12 +/*! @}*/ + +#define AKMIO 0xA1 + +/* IOCTLs for AKM library */ +#define ECS_IOCTL_READ _IOWR(AKMIO, 0x01, char*) +#define ECS_IOCTL_WRITE _IOW(AKMIO, 0x02, char*) +#define ECS_IOCTL_SET_MODE _IOW(AKMIO, 0x03, short) +#define ECS_IOCTL_GETDATA _IOR(AKMIO, 0x04, char[SENSOR_DATA_SIZE]) +#define ECS_IOCTL_SET_YPR _IOW(AKMIO, 0x05, int[YPR_DATA_SIZE]) +#define ECS_IOCTL_GET_OPEN_STATUS _IOR(AKMIO, 0x06, int) +#define ECS_IOCTL_GET_CLOSE_STATUS _IOR(AKMIO, 0x07, int) +#define ECS_IOCTL_GET_DELAY _IOR(AKMIO, 0x08, long long int[AKM_NUM_SENSORS]) +#define ECS_IOCTL_GET_LAYOUT _IOR(AKMIO, 0x09, char) +#define ECS_IOCTL_GET_OUTBIT _IOR(AKMIO, 0x0B, char) +#define ECS_IOCTL_RESET _IO(AKMIO, 0x0C) +#define ECS_IOCTL_GET_ACCEL _IOR(AKMIO, 0x30, short[3]) + +struct akm8963_platform_data { + char layout; + char outbit; + int gpio_DRDY; + int gpio_RST; +}; + +#endif + |