From ab56b8fa40883e94812ad2adaf8cbea4f8e9ff74 Mon Sep 17 00:00:00 2001
From: lhh <lhh@rock-chips.com>
Date: Fri, 21 Jan 2011 17:45:17 +0800
Subject: [PATCH] add ak8975.h

---
 drivers/staging/iio/magnetometer/ak8975.h | 86 +++++++++++++++++++++++
 1 file changed, 86 insertions(+)
 create mode 100644 drivers/staging/iio/magnetometer/ak8975.h

diff --git a/drivers/staging/iio/magnetometer/ak8975.h b/drivers/staging/iio/magnetometer/ak8975.h
new file mode 100644
index 000000000000..dd6628552d18
--- /dev/null
+++ b/drivers/staging/iio/magnetometer/ak8975.h
@@ -0,0 +1,86 @@
+/*
+ * Definitions for akm8975 compass chip.
+ */
+#ifndef AKM8975_H
+#define AKM8975_H
+
+#include <linux/ioctl.h>
+
+#define AKM8975_I2C_NAME "ak8975"
+
+/*! \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_POWERDOWN	0x00
+/*! @}*/
+
+#define SENSOR_DATA_SIZE		8	/* Rx buffer size, i.e from ST1 to ST2 */
+#define RWBUF_SIZE				16	/* Read/Write 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, 0x01, char*)
+#define ECS_IOCTL_READ                  _IOWR(AKMIO, 0x02, char*)
+#define ECS_IOCTL_RESET      	        _IO(AKMIO, 0x03) /* NOT used in AK8975 */
+#define ECS_IOCTL_SET_MODE              _IOW(AKMIO, 0x04, short)
+#define ECS_IOCTL_GETDATA               _IOR(AKMIO, 0x05, char[SENSOR_DATA_SIZE])
+#define ECS_IOCTL_SET_YPR               _IOW(AKMIO, 0x06, short[12])
+#define ECS_IOCTL_GET_OPEN_STATUS       _IOR(AKMIO, 0x07, int)
+#define ECS_IOCTL_GET_CLOSE_STATUS      _IOR(AKMIO, 0x08, int)
+#define ECS_IOCTL_GET_DELAY             _IOR(AKMIO, 0x30, short)
+#define ECS_IOCTL_GET_PROJECT_NAME      _IOR(AKMIO, 0x0D, char[64])
+#define ECS_IOCTL_GET_MATRIX            _IOR(AKMIO, 0x0E, short [4][3][3])
+
+/* IOCTLs for APPs */
+#define ECS_IOCTL_APP_SET_MODE		_IOW(AKMIO, 0x10, short)
+#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_TFLAG		_IOR(AKMIO, 0x15, short)/* NOT use */
+#define ECS_IOCTL_APP_GET_TFLAG		_IOR(AKMIO, 0x16, short)/* NOT use */
+#define ECS_IOCTL_APP_RESET_PEDOMETER   _IO(AKMIO, 0x17)	/* NOT use */
+#define ECS_IOCTL_APP_SET_DELAY		_IOW(AKMIO, 0x18, short)
+#define ECS_IOCTL_APP_GET_DELAY		ECS_IOCTL_GET_DELAY
+#define ECS_IOCTL_APP_SET_MVFLAG	_IOW(AKMIO, 0x19, short)
+#define ECS_IOCTL_APP_GET_MVFLAG	_IOR(AKMIO, 0x1A, short)
+
+#endif
+
-- 
2.34.1