1 files changed, 87 insertions, 0 deletions

diff --git a/include/linux/akm8975.h b/include/linux/akm8975.h
new file mode 100644
index 00000000000..6a7c4326001
--- /dev/null
+++ b/include/linux/akm8975.h
@@ -0,0 +1,87 @@
+/*
+ * Definitions for akm8975 compass chip.
+ */
+#ifndef AKM8975_H
+#define AKM8975_H
+
+#include <linux/ioctl.h>
+
+/*! \name AK8975 operation mode
+ \anchor AK8975_Mode
+ Defines an operation mode of the AK8975.*/
+/*! @{*/
+#define AK8975_MODE_SNG_MEASURE   0x01
+#define AK8975_MODE_SELF_TEST     0x08
+#define AK8975_MODE_FUSE_ACCESS   0x0F
+#define AK8975_MODE_POWER_DOWN    0x00
+/*! @}*/
+
+#define RBUFF_SIZE              8       /* Rx buffer size */
+
+/*! \name AK8975 register address
+\anchor AK8975_REG
+Defines a register address of the AK8975.*/
+/*! @{*/
+#define AK8975_REG_WIA          0x00
+#define AK8975_REG_INFO         0x01
+#define AK8975_REG_ST1          0x02
+#define AK8975_REG_HXL          0x03
+#define AK8975_REG_HXH          0x04
+#define AK8975_REG_HYL          0x05
+#define AK8975_REG_HYH          0x06
+#define AK8975_REG_HZL          0x07
+#define AK8975_REG_HZH          0x08
+#define AK8975_REG_ST2          0x09
+#define AK8975_REG_CNTL         0x0A
+#define AK8975_REG_RSV          0x0B
+#define AK8975_REG_ASTC         0x0C
+#define AK8975_REG_TS1          0x0D
+#define AK8975_REG_TS2          0x0E
+#define AK8975_REG_I2CDIS       0x0F
+/*! @}*/
+
+/*! \name AK8975 fuse-rom address
+\anchor AK8975_FUSE
+Defines a read-only address of the fuse ROM of the AK8975.*/
+/*! @{*/
+#define AK8975_FUSE_ASAX        0x10
+#define AK8975_FUSE_ASAY        0x11
+#define AK8975_FUSE_ASAZ        0x12
+/*! @}*/
+
+#define AKMIO                   0xA1
+
+/* IOCTLs for AKM library */
+#define ECS_IOCTL_WRITE                 _IOW(AKMIO, 0x02, char[5])
+#define ECS_IOCTL_READ                  _IOWR(AKMIO, 0x03, char[5])
+#define ECS_IOCTL_GETDATA               _IOR(AKMIO, 0x08, char[RBUFF_SIZE])
+#define ECS_IOCTL_SET_YPR               _IOW(AKMIO, 0x0C, short[12])
+#define ECS_IOCTL_GET_OPEN_STATUS       _IOR(AKMIO, 0x0D, int)
+#define ECS_IOCTL_GET_CLOSE_STATUS      _IOR(AKMIO, 0x0E, int)
+#define ECS_IOCTL_GET_DELAY             _IOR(AKMIO, 0x30, short)
+
+/* IOCTLs for APPs */
+#define ECS_IOCTL_APP_SET_MFLAG         _IOW(AKMIO, 0x11, short)
+#define ECS_IOCTL_APP_GET_MFLAG         _IOW(AKMIO, 0x12, short)
+#define ECS_IOCTL_APP_SET_AFLAG         _IOW(AKMIO, 0x13, short)
+#define ECS_IOCTL_APP_GET_AFLAG         _IOR(AKMIO, 0x14, short)
+#define ECS_IOCTL_APP_SET_DELAY         _IOW(AKMIO, 0x18, short)
+#define ECS_IOCTL_APP_GET_DELAY         ECS_IOCTL_GET_DELAY
+/* Set raw magnetic vector flag */
+#define ECS_IOCTL_APP_SET_MVFLAG        _IOW(AKMIO, 0x19, short)
+/* Get raw magnetic vector flag */
+#define ECS_IOCTL_APP_GET_MVFLAG        _IOR(AKMIO, 0x1A, short)
+#define ECS_IOCTL_APP_SET_TFLAG         _IOR(AKMIO, 0x15, short)
+
+
+struct akm8975_platform_data {
+        int intr;
+
+        int (*init)(void);
+        void (*exit)(void);
+        int (*power_on)(void);
+        int (*power_off)(void);
+};
+
+#endif
+