samsung update 1

1 files changed, 617 insertions, 0 deletions

diff --git a/drivers/misc/mpu3050/accel/kxtf9.c b/drivers/misc/mpu3050/accel/kxtf9.c
new file mode 100755
index 0000000..f438259
--- /dev/null
+++ b/drivers/misc/mpu3050/accel/kxtf9.c
@@ -0,0 +1,617 @@
+/*
+ $License:
+    Copyright (C) 2010 InvenSense Corporation, All Rights Reserved.
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  $
+ */
+
+/**
+ *  @defgroup   ACCELDL (Motion Library - Accelerometer Driver Layer)
+ *  @brief      Provides the interface to setup and handle an accelerometers
+ *              connected to the secondary I2C interface of the gyroscope.
+ *
+ *  @{
+ *      @file   kxtf9.c
+ *      @brief  Accelerometer setup and handling methods.
+*/
+
+/* ------------------ */
+/* - Include Files. - */
+/* ------------------ */
+
+#undef MPL_LOG_NDEBUG
+#define MPL_LOG_NDEBUG 1
+
+#ifdef __KERNEL__
+#include <linux/module.h>
+#endif
+
+#include "mpu.h"
+#include "mlsl.h"
+#include "mlos.h"
+
+#include <log.h>
+#undef MPL_LOG_TAG
+#define MPL_LOG_TAG "MPL-acc"
+
+#define KXTF9_XOUT_HPF_L                (0x00)	/* 0000 0000 */
+#define KXTF9_XOUT_HPF_H                (0x01)	/* 0000 0001 */
+#define KXTF9_YOUT_HPF_L                (0x02)	/* 0000 0010 */
+#define KXTF9_YOUT_HPF_H                (0x03)	/* 0000 0011 */
+#define KXTF9_ZOUT_HPF_L                (0x04)	/* 0001 0100 */
+#define KXTF9_ZOUT_HPF_H                (0x05)	/* 0001 0101 */
+#define KXTF9_XOUT_L                    (0x06)	/* 0000 0110 */
+#define KXTF9_XOUT_H                    (0x07)	/* 0000 0111 */
+#define KXTF9_YOUT_L                    (0x08)	/* 0000 1000 */
+#define KXTF9_YOUT_H                    (0x09)	/* 0000 1001 */
+#define KXTF9_ZOUT_L                    (0x0A)	/* 0001 1010 */
+#define KXTF9_ZOUT_H                    (0x0B)	/* 0001 1011 */
+#define KXTF9_ST_RESP                   (0x0C)	/* 0000 1100 */
+#define KXTF9_WHO_AM_I                  (0x0F)	/* 0000 1111 */
+#define KXTF9_TILT_POS_CUR              (0x10)	/* 0001 0000 */
+#define KXTF9_TILT_POS_PRE              (0x11)	/* 0001 0001 */
+#define KXTF9_INT_SRC_REG1            (0x15)	/* 0001 0101 */
+#define KXTF9_INT_SRC_REG2              (0x16)	/* 0001 0110 */
+#define KXTF9_STATUS_REG                (0x18)	/* 0001 1000 */
+#define KXTF9_INT_REL                   (0x1A)	/* 0001 1010 */
+#define KXTF9_CTRL_REG1                 (0x1B)	/* 0001 1011 */
+#define KXTF9_CTRL_REG2                 (0x1C)	/* 0001 1100 */
+#define KXTF9_CTRL_REG3                 (0x1D)	/* 0001 1101 */
+#define KXTF9_INT_CTRL_REG1             (0x1E)	/* 0001 1110 */
+#define KXTF9_INT_CTRL_REG2             (0x1F)	/* 0001 1111 */
+#define KXTF9_INT_CTRL_REG3           (0x20)	/* 0010 0000 */
+#define KXTF9_DATA_CTRL_REG             (0x21)	/* 0010 0001 */
+#define KXTF9_TILT_TIMER                (0x28)	/* 0010 1000 */
+#define KXTF9_WUF_TIMER                 (0x29)	/* 0010 1001 */
+#define KXTF9_TDT_TIMER                 (0x2B)	/* 0010 1011 */
+#define KXTF9_TDT_H_THRESH              (0x2C)	/* 0010 1100 */
+#define KXTF9_TDT_L_THRESH              (0x2D)	/* 0010 1101 */
+#define KXTF9_TDT_TAP_TIMER             (0x2E)	/* 0010 1110 */
+#define KXTF9_TDT_TOTAL_TIMER           (0x2F)	/* 0010 1111 */
+#define KXTF9_TDT_LATENCY_TIMER         (0x30)	/* 0011 0000 */
+#define KXTF9_TDT_WINDOW_TIMER          (0x31)	/* 0011 0001 */
+#define KXTF9_WUF_THRESH                (0x5A)	/* 0101 1010 */
+#define KXTF9_TILT_ANGLE                (0x5C)	/* 0101 1100 */
+#define KXTF9_HYST_SET                  (0x5F)	/* 0101 1111 */
+
+#define KXTF9_MAX_DUR (0xFF)
+#define KXTF9_MAX_THS (0xFF)
+#define KXTF9_THS_COUNTS_P_G (32)
+
+/* --------------------- */
+/* -    Variables.     - */
+/* --------------------- */
+
+struct kxtf9_config {
+	unsigned int odr;	/* Output data rate mHz */
+	unsigned int fsr;	/* full scale range mg */
+	unsigned int ths;	/* Motion no-motion thseshold mg */
+	unsigned int dur;	/* Motion no-motion duration ms */
+	unsigned int irq_type;
+	unsigned char reg_ths;
+	unsigned char reg_dur;
+	unsigned char reg_odr;
+	unsigned char reg_int_cfg1;
+	unsigned char reg_int_cfg2;
+	unsigned char ctrl_reg1;
+};
+
+struct kxtf9_private_data {
+	struct kxtf9_config suspend;
+	struct kxtf9_config resume;
+};
+
+extern struct acc_data cal_data;
+/*****************************************
+    Accelerometer Initialization Functions
+*****************************************/
+
+static int kxtf9_set_ths(void *mlsl_handle,
+			 struct ext_slave_platform_data *pdata,
+			 struct kxtf9_config *config, int apply, long ths)
+{
+	int result = ML_SUCCESS;
+	if ((ths * KXTF9_THS_COUNTS_P_G / 1000) > KXTF9_MAX_THS)
+		ths = (KXTF9_MAX_THS * 1000) / KXTF9_THS_COUNTS_P_G;
+
+	if (ths < 0)
+		ths = 0;
+
+	config->ths = ths;
+	config->reg_ths = (unsigned char)
+	    ((long)(ths * KXTF9_THS_COUNTS_P_G) / 1000);
+	MPL_LOGV("THS: %d, 0x%02x\n", config->ths, (int)config->reg_ths);
+	if (apply)
+		result = MLSLSerialWriteSingle(mlsl_handle, pdata->address,
+					       KXTF9_WUF_THRESH,
+					       config->reg_ths);
+	return result;
+}
+
+static int kxtf9_set_dur(void *mlsl_handle,
+			 struct ext_slave_platform_data *pdata,
+			 struct kxtf9_config *config, int apply, long dur)
+{
+	int result = ML_SUCCESS;
+	long reg_dur = (dur * config->odr) / 1000000;
+	config->dur = dur;
+
+	if (reg_dur > KXTF9_MAX_DUR)
+		reg_dur = KXTF9_MAX_DUR;
+
+	config->reg_dur = (unsigned char)reg_dur;
+	MPL_LOGV("DUR: %d, 0x%02x\n", config->dur, (int)config->reg_dur);
+	if (apply)
+		result = MLSLSerialWriteSingle(mlsl_handle, pdata->address,
+					       KXTF9_WUF_TIMER,
+					       (unsigned char)reg_dur);
+	return result;
+}
+
+/**
+ * Sets the IRQ to fire when one of the IRQ events occur.  Threshold and
+ * duration will not be used uless the type is MOT or NMOT.
+ *
+ * @param config configuration to apply to, suspend or resume
+ * @param irq_type The type of IRQ.  Valid values are
+ * - MPU_SLAVE_IRQ_TYPE_NONE
+ * - MPU_SLAVE_IRQ_TYPE_MOTION
+ * - MPU_SLAVE_IRQ_TYPE_DATA_READY
+ */
+static int kxtf9_set_irq(void *mlsl_handle,
+			 struct ext_slave_platform_data *pdata,
+			 struct kxtf9_config *config, int apply, long irq_type)
+{
+	int result = ML_SUCCESS;
+	struct kxtf9_private_data *private_data = pdata->private_data;
+
+	config->irq_type = (unsigned char)irq_type;
+	config->ctrl_reg1 &= ~0x22;
+	if (irq_type == MPU_SLAVE_IRQ_TYPE_DATA_READY) {
+		config->ctrl_reg1 |= 0x20;
+		config->reg_int_cfg1 = 0x38;
+		config->reg_int_cfg2 = 0x00;
+	} else if (irq_type == MPU_SLAVE_IRQ_TYPE_MOTION) {
+		config->ctrl_reg1 |= 0x02;
+		if ((unsigned long)config ==
+		    (unsigned long)&private_data->suspend)
+			config->reg_int_cfg1 = 0x34;
+		else
+			config->reg_int_cfg1 = 0x24;
+		config->reg_int_cfg2 = 0xE0;
+	} else {
+		config->reg_int_cfg1 = 0x00;
+		config->reg_int_cfg2 = 0x00;
+	}
+
+	if (apply) {
+		/* Must clear bit 7 before writing new configuration */
+		result = MLSLSerialWriteSingle(mlsl_handle, pdata->address,
+					       KXTF9_CTRL_REG1, 0x40);
+		result = MLSLSerialWriteSingle(mlsl_handle, pdata->address,
+					       KXTF9_INT_CTRL_REG1,
+					       config->reg_int_cfg1);
+		result = MLSLSerialWriteSingle(mlsl_handle, pdata->address,
+					       KXTF9_INT_CTRL_REG2,
+					       config->reg_int_cfg2);
+		result = MLSLSerialWriteSingle(mlsl_handle, pdata->address,
+					       KXTF9_CTRL_REG1,
+					       config->ctrl_reg1);
+	}
+	MPL_LOGV("CTRL_REG1: %lx, INT_CFG1: %lx, INT_CFG2: %lx\n",
+		 (unsigned long)config->ctrl_reg1,
+		 (unsigned long)config->reg_int_cfg1,
+		 (unsigned long)config->reg_int_cfg2);
+
+	return result;
+}
+
+/**
+ * Set the Output data rate for the particular configuration
+ *
+ * @param config Config to modify with new ODR
+ * @param odr Output data rate in units of 1/1000Hz
+ */
+static int kxtf9_set_odr(void *mlsl_handle,
+			 struct ext_slave_platform_data *pdata,
+			 struct kxtf9_config *config, int apply, long odr)
+{
+	unsigned char bits;
+	int result = ML_SUCCESS;
+
+	/* Data sheet says there is 12.5 hz, but that seems to produce a single
+	 * correct data value, thus we remove it from the table */
+	if (odr > 400000) {
+		config->odr = 800000;
+		bits = 0x06;
+	} else if (odr > 200000) {
+		config->odr = 400000;
+		bits = 0x05;
+	} else if (odr > 100000) {
+		config->odr = 200000;
+		bits = 0x04;
+	} else if (odr > 50000) {
+		config->odr = 100000;
+		bits = 0x03;
+	} else if (odr > 25000) {
+		config->odr = 50000;
+		bits = 0x02;
+	} else if (odr != 0) {
+		config->odr = 25000;
+		bits = 0x01;
+	} else {
+		config->odr = 0;
+		bits = 0;
+	}
+
+	if (odr != 0)
+		config->ctrl_reg1 |= 0x80;
+
+	config->reg_odr = bits;
+	kxtf9_set_dur(mlsl_handle, pdata, config, apply, config->dur);
+	MPL_LOGV("ODR: %d, 0x%02x\n", config->odr, (int)config->ctrl_reg1);
+	if (apply) {
+		result = MLSLSerialWriteSingle(mlsl_handle, pdata->address,
+					       KXTF9_DATA_CTRL_REG,
+					       config->reg_odr);
+		result = MLSLSerialWriteSingle(mlsl_handle, pdata->address,
+					       KXTF9_CTRL_REG1, 0x40);
+		result = MLSLSerialWriteSingle(mlsl_handle, pdata->address,
+					       KXTF9_CTRL_REG1,
+					       config->ctrl_reg1);
+	}
+	return result;
+}
+
+/**
+ * Set the full scale range of the accels
+ *
+ * @param config pointer to configuration
+ * @param fsr requested full scale range
+ */
+static int kxtf9_set_fsr(void *mlsl_handle,
+			 struct ext_slave_platform_data *pdata,
+			 struct kxtf9_config *config, int apply, long fsr)
+{
+	int result = ML_SUCCESS;
+
+	config->ctrl_reg1 = (config->ctrl_reg1 & 0xE7);
+	if (fsr <= 2000) {
+		config->fsr = 2000;
+		config->ctrl_reg1 |= 0x00;
+	} else if (fsr <= 4000) {
+		config->fsr = 4000;
+		config->ctrl_reg1 |= 0x08;
+	} else {
+		config->fsr = 8000;
+		config->ctrl_reg1 |= 0x10;
+	}
+
+	MPL_LOGV("FSR: %d\n", config->fsr);
+	if (apply) {
+		/* Must clear bit 7 before writing new configuration */
+		result = MLSLSerialWriteSingle(mlsl_handle, pdata->address,
+					       KXTF9_CTRL_REG1, 0x40);
+		result = MLSLSerialWriteSingle(mlsl_handle, pdata->address,
+					       KXTF9_CTRL_REG1,
+					       config->ctrl_reg1);
+	}
+	return result;
+}
+
+static int kxtf9_suspend(void *mlsl_handle,
+			 struct ext_slave_descr *slave,
+			 struct ext_slave_platform_data *pdata)
+{
+	int result;
+	result = MLSLSerialWriteSingle(mlsl_handle, pdata->address,
+				       KXTF9_CTRL_REG1, 0x0);
+	ERROR_CHECK(result);
+	return result;
+}
+
+/* full scale setting - register and mask */
+#define ACCEL_KIONIX_CTRL_REG      (0x1b)
+#define ACCEL_KIONIX_CTRL_MASK     (0x18)
+
+static int kxtf9_resume(void *mlsl_handle,
+			struct ext_slave_descr *slave,
+			struct ext_slave_platform_data *pdata)
+{
+	int result = ML_SUCCESS;
+	unsigned char data;
+	struct kxtf9_private_data *private_data = pdata->private_data;
+
+	/* Wake up */
+	result = MLSLSerialWriteSingle(mlsl_handle, pdata->address,
+				       KXTF9_CTRL_REG1, 0x40);
+	ERROR_CHECK(result);
+	/* INT_CTRL_REG1: */
+	result = MLSLSerialWriteSingle(mlsl_handle, pdata->address,
+				       KXTF9_INT_CTRL_REG1,
+				       private_data->resume.reg_int_cfg1);
+	ERROR_CHECK(result);
+	/* WUF_THRESH: */
+	result = MLSLSerialWriteSingle(mlsl_handle, pdata->address,
+				       KXTF9_WUF_THRESH,
+				       private_data->resume.reg_ths);
+	ERROR_CHECK(result);
+	/* DATA_CTRL_REG */
+	result = MLSLSerialWriteSingle(mlsl_handle, pdata->address,
+				       KXTF9_DATA_CTRL_REG,
+				       private_data->resume.reg_odr);
+	ERROR_CHECK(result);
+	/* WUF_TIMER */
+	result = MLSLSerialWriteSingle(mlsl_handle, pdata->address,
+				       KXTF9_WUF_TIMER,
+				       private_data->resume.reg_dur);
+	ERROR_CHECK(result);
+
+	/* Normal operation  */
+	result = MLSLSerialWriteSingle(mlsl_handle, pdata->address,
+				       KXTF9_CTRL_REG1,
+				       private_data->resume.ctrl_reg1);
+	ERROR_CHECK(result);
+	result = MLSLSerialRead(mlsl_handle, pdata->address,
+				KXTF9_INT_REL, 1, &data);
+	ERROR_CHECK(result);
+
+	return ML_SUCCESS;
+}
+
+static int kxtf9_init(void *mlsl_handle,
+		      struct ext_slave_descr *slave,
+		      struct ext_slave_platform_data *pdata)
+{
+
+	struct kxtf9_private_data *private_data;
+	int result = ML_SUCCESS;
+
+	private_data = (struct kxtf9_private_data *)
+	    MLOSMalloc(sizeof(struct kxtf9_private_data));
+
+	if (!private_data)
+		return ML_ERROR_MEMORY_EXAUSTED;
+
+	/* RAM reset */
+	result = MLSLSerialWriteSingle(mlsl_handle,
+			pdata->address, KXTF9_CTRL_REG1, 0x40);
+			/* Fastest Reset */
+	ERROR_CHECK(result);
+	result = MLSLSerialWriteSingle(mlsl_handle,
+			pdata->address, KXTF9_DATA_CTRL_REG, 0x36);
+			/* Fastest Reset */
+	ERROR_CHECK(result);
+	result = MLSLSerialWriteSingle(mlsl_handle,
+			pdata->address, KXTF9_CTRL_REG3, 0xcd);
+			/* Reset */
+	ERROR_CHECK(result);
+	MLOSSleep(2);
+
+	pdata->private_data = private_data;
+
+	private_data->resume.ctrl_reg1 = 0xC0;
+	private_data->suspend.ctrl_reg1 = 0x40;
+
+	result = kxtf9_set_dur(mlsl_handle, pdata, &private_data->suspend,
+			       FALSE, 1000);
+	ERROR_CHECK(result);
+	result = kxtf9_set_dur(mlsl_handle, pdata, &private_data->resume,
+			       FALSE, 2540);
+	ERROR_CHECK(result);
+
+	result = kxtf9_set_odr(mlsl_handle, pdata, &private_data->suspend,
+			       FALSE, 50000);
+	ERROR_CHECK(result);
+	result = kxtf9_set_odr(mlsl_handle, pdata, &private_data->resume,
+			       FALSE, 200000);
+
+	result = kxtf9_set_fsr(mlsl_handle, pdata, &private_data->suspend,
+			       FALSE, 2000);
+	ERROR_CHECK(result);
+	result = kxtf9_set_fsr(mlsl_handle, pdata, &private_data->resume,
+			       FALSE, 2000);
+	ERROR_CHECK(result);
+
+	result = kxtf9_set_ths(mlsl_handle, pdata, &private_data->suspend,
+			       FALSE, 80);
+	ERROR_CHECK(result);
+	result = kxtf9_set_ths(mlsl_handle, pdata, &private_data->resume,
+			       FALSE, 40);
+	ERROR_CHECK(result);
+
+	result = kxtf9_set_irq(mlsl_handle, pdata, &private_data->suspend,
+			       FALSE, MPU_SLAVE_IRQ_TYPE_NONE);
+	ERROR_CHECK(result);
+	result = kxtf9_set_irq(mlsl_handle, pdata, &private_data->resume,
+			       FALSE, MPU_SLAVE_IRQ_TYPE_NONE);
+	ERROR_CHECK(result);
+	return result;
+}
+
+static int kxtf9_exit(void *mlsl_handle,
+		      struct ext_slave_descr *slave,
+		      struct ext_slave_platform_data *pdata)
+{
+	if (pdata->private_data)
+		return MLOSFree(pdata->private_data);
+	else
+		return ML_SUCCESS;
+}
+
+static int kxtf9_config(void *mlsl_handle,
+			struct ext_slave_descr *slave,
+			struct ext_slave_platform_data *pdata,
+			struct ext_slave_config *data)
+{
+	struct kxtf9_private_data *private_data = pdata->private_data;
+	if (!data->data)
+		return ML_ERROR_INVALID_PARAMETER;
+
+	switch (data->key) {
+	case MPU_SLAVE_CONFIG_ODR_SUSPEND:
+		return kxtf9_set_odr(mlsl_handle, pdata,
+				     &private_data->suspend,
+				     data->apply, *((long *)data->data));
+	case MPU_SLAVE_CONFIG_ODR_RESUME:
+		return kxtf9_set_odr(mlsl_handle, pdata,
+				     &private_data->resume,
+				     data->apply, *((long *)data->data));
+	case MPU_SLAVE_CONFIG_FSR_SUSPEND:
+		return kxtf9_set_fsr(mlsl_handle, pdata,
+				     &private_data->suspend,
+				     data->apply, *((long *)data->data));
+	case MPU_SLAVE_CONFIG_FSR_RESUME:
+		return kxtf9_set_fsr(mlsl_handle, pdata,
+				     &private_data->resume,
+				     data->apply, *((long *)data->data));
+	case MPU_SLAVE_CONFIG_MOT_THS:
+		return kxtf9_set_ths(mlsl_handle, pdata,
+				     &private_data->suspend,
+				     data->apply, *((long *)data->data));
+	case MPU_SLAVE_CONFIG_NMOT_THS:
+		return kxtf9_set_ths(mlsl_handle, pdata,
+				     &private_data->resume,
+				     data->apply, *((long *)data->data));
+	case MPU_SLAVE_CONFIG_MOT_DUR:
+		return kxtf9_set_dur(mlsl_handle, pdata,
+				     &private_data->suspend,
+				     data->apply, *((long *)data->data));
+	case MPU_SLAVE_CONFIG_NMOT_DUR:
+		return kxtf9_set_dur(mlsl_handle, pdata,
+				     &private_data->resume,
+				     data->apply, *((long *)data->data));
+	case MPU_SLAVE_CONFIG_IRQ_SUSPEND:
+		return kxtf9_set_irq(mlsl_handle, pdata,
+				     &private_data->suspend,
+				     data->apply, *((long *)data->data));
+	case MPU_SLAVE_CONFIG_IRQ_RESUME:
+		return kxtf9_set_irq(mlsl_handle, pdata,
+				     &private_data->resume,
+				     data->apply, *((long *)data->data));
+	default:
+		return ML_ERROR_FEATURE_NOT_IMPLEMENTED;
+	};
+
+	return ML_SUCCESS;
+}
+
+static int kxtf9_get_config(void *mlsl_handle,
+			    struct ext_slave_descr *slave,
+			    struct ext_slave_platform_data *pdata,
+			    struct ext_slave_config *data)
+{
+	struct kxtf9_private_data *private_data = pdata->private_data;
+	if (!data->data)
+		return ML_ERROR_INVALID_PARAMETER;
+
+	switch (data->key) {
+	case MPU_SLAVE_CONFIG_ODR_SUSPEND:
+		(*(unsigned long *)data->data) =
+		    (unsigned long)private_data->suspend.odr;
+		break;
+	case MPU_SLAVE_CONFIG_ODR_RESUME:
+		(*(unsigned long *)data->data) =
+		    (unsigned long)private_data->resume.odr;
+		break;
+	case MPU_SLAVE_CONFIG_FSR_SUSPEND:
+		(*(unsigned long *)data->data) =
+		    (unsigned long)private_data->suspend.fsr;
+		break;
+	case MPU_SLAVE_CONFIG_FSR_RESUME:
+		(*(unsigned long *)data->data) =
+		    (unsigned long)private_data->resume.fsr;
+		break;
+	case MPU_SLAVE_CONFIG_MOT_THS:
+		(*(unsigned long *)data->data) =
+		    (unsigned long)private_data->suspend.ths;
+		break;
+	case MPU_SLAVE_CONFIG_NMOT_THS:
+		(*(unsigned long *)data->data) =
+		    (unsigned long)private_data->resume.ths;
+		break;
+	case MPU_SLAVE_CONFIG_MOT_DUR:
+		(*(unsigned long *)data->data) =
+		    (unsigned long)private_data->suspend.dur;
+		break;
+	case MPU_SLAVE_CONFIG_NMOT_DUR:
+		(*(unsigned long *)data->data) =
+		    (unsigned long)private_data->resume.dur;
+		break;
+	case MPU_SLAVE_CONFIG_IRQ_SUSPEND:
+		(*(unsigned long *)data->data) =
+		    (unsigned long)private_data->suspend.irq_type;
+		break;
+	case MPU_SLAVE_CONFIG_IRQ_RESUME:
+		(*(unsigned long *)data->data) =
+		    (unsigned long)private_data->resume.irq_type;
+		break;
+	default:
+		return ML_ERROR_FEATURE_NOT_IMPLEMENTED;
+	};
+
+	return ML_SUCCESS;
+}
+
+static int kxtf9_read(void *mlsl_handle,
+		      struct ext_slave_descr *slave,
+		      struct ext_slave_platform_data *pdata,
+		      unsigned char *data)
+{
+	int result;
+	int x, y, z;
+
+	result = MLSLSerialRead(mlsl_handle, pdata->address,
+				slave->reg, slave->len, data);
+
+	if (slave->len == 6) {
+		x = (s16) ((data[1] << 4) | (data[0] >> 4)) + cal_data.x;
+		y = (s16) ((data[3] << 4) | (data[2] >> 4)) + cal_data.y;
+		z = (s16) ((data[5] << 4) | (data[4] >> 4)) + cal_data.z;
+
+		data[0] = (x & 0xf) << 4;
+		data[1] = (x & 0xff0) >> 4;
+		data[2] = (y & 0xf) << 4;
+		data[3] = (y & 0xff0) >> 4;
+		data[4] = (z & 0xf) << 4;
+		data[5] = (z & 0xff0) >> 4;
+	}
+
+	ERROR_CHECK(result);
+	return result;
+}
+
+static struct ext_slave_descr kxtf9_descr = {
+	/*.init             = */ kxtf9_init,
+	/*.exit             = */ kxtf9_exit,
+	/*.suspend          = */ kxtf9_suspend,
+	/*.resume           = */ kxtf9_resume,
+	/*.read             = */ kxtf9_read,
+	/*.config           = */ kxtf9_config,
+	/*.get_config       = */ kxtf9_get_config,
+	/*.name             = */ "kxtf9",
+	/*.type             = */ EXT_SLAVE_TYPE_ACCELEROMETER,
+	/*.id               = */ ACCEL_ID_KXTF9,
+	/*.reg              = */ 0x06,
+	/*.len              = */ 6,
+	/*.endian           = */ EXT_SLAVE_LITTLE_ENDIAN,
+	/*.range            = */ {2, 0},
+};
+
+struct ext_slave_descr *kxtf9_get_slave_descr(void)
+{
+	return &kxtf9_descr;
+}
+EXPORT_SYMBOL(kxtf9_get_slave_descr);