-/* drivers/input/sensors/gyro/Ewtsa.c\r
- *\r
- * Copyright (C) 2012-2015 ROCKCHIP.\r
- * Author: zhangaihui <zah@rock-chips.com>\r
- *\r
- * This software is licensed under the terms of the GNU General Public\r
- * License version 2, as published by the Free Software Foundation, and\r
- * may be copied, distributed, and modified under those terms.\r
- *\r
- * This program is distributed in the hope that it will be useful,\r
- * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
- * GNU General Public License for more details.\r
- *\r
- */\r
-#include <linux/interrupt.h>\r
-#include <linux/i2c.h>\r
-#include <linux/slab.h>\r
-#include <linux/irq.h>\r
-#include <linux/miscdevice.h>\r
-#include <linux/gpio.h>\r
-#include <asm/uaccess.h>\r
-#include <asm/atomic.h>\r
-#include <linux/delay.h>\r
-#include <linux/input.h>\r
-#include <linux/workqueue.h>\r
-#include <linux/freezer.h>\r
-#include <linux/of_gpio.h>\r
-#ifdef CONFIG_HAS_EARLYSUSPEND\r
-#include <linux/earlysuspend.h>\r
-#endif\r
-#include <linux/sensor-dev.h>\r
-\r
-/** This define controls compilation of the master device interface */\r
-/*#define EWTSA_MASTER_DEVICE*/\r
-/* configurable */\r
-#define GYRO_MOUNT_SWAP_XY 0 /* swap X, Y */\r
-#define GYRO_MOUNT_REVERSE_X 0 /* reverse X */\r
-#define GYRO_MOUNT_REVERSE_Y 0 /* reverse Y */\r
-#define GYRO_MOUNT_REVERSE_Z 0 /* reverse Z */\r
-\r
-/* macro defines */\r
-/*#define CHIP_ID 0x68*/\r
-#define DEVICE_NAME "ewtsa"\r
-#define EWTSA_ON 1\r
-#define EWTSA_OFF 0\r
-#define SLEEP_PIN 14\r
-#define DRDY_PIN 12\r
-#define DIAG_PIN 11\r
-#define MAX_VALUE 32768\r
-\r
-/* ewtsa_delay parameter */\r
-#define DELAY_THRES_MIN 1\r
-#define DELAY_THRES_1 4\r
-#define DELAY_THRES_2 9 /* msec x 90% */\r
-#define DELAY_THRES_3 18\r
-#define DELAY_THRES_4 45\r
-#define DELAY_THRES_5 90\r
-#define DELAY_THRES_6 128\r
-#define DELAY_THRES_MAX 255\r
-#define DELAY_DLPF_2 2\r
-#define DELAY_DLPF_3 3\r
-#define DELAY_DLPF_4 4\r
-#define DELAY_DLPF_5 5\r
-#define DELAY_DLPF_6 6\r
-#define DELAY_INTMIN_THRES 9\r
-\r
-#define DATA_RATE_1 0x01\r
-\r
-/* ewtsa_sleep parameter */\r
-#define SLEEP_OFF 0\r
-#define SLEEP_ON 1\r
-\r
-/* event mode */\r
-#define EWTSA_POLLING_MODE 0\r
-#define EWTSA_INTERUPT_MODE 1\r
-\r
-/* ewtsa register address */\r
-#define REG_SMPL 0x15\r
-#define REG_FS_DLPF 0x16\r
-#define REG_INT_CFG 0x17\r
-#define REG_INT_STATUS 0x1A\r
-#define REG_SELF_O_C 0x29\r
-#define REG_PWR_MGM 0x3E\r
-#define REG_MBURST_ALL 0xFF\r
-#define GYRO_DATA_REG 0x1D\r
-\r
-/* ewtsa register param */\r
-#define SELF_O_C_ENABLE 0x00\r
-#define SELF_O_C_DISABLE 0x01\r
-#define SLEEP_CTRL_ACTIVATE 0x40\r
-#define SLEEP_CTRL_SLEEP 0x00\r
-#define INT_CFG_INT_ENABLE 0x01\r
-#define INT_CFG_INT_DISABLE 0x00\r
-\r
-/* ewtsa interrupt control */\r
-#define EWSTA_INT_CLEAR 0x00\r
-#define EWSTA_INT_SKIP 0x01\r
-\r
-/* wait time(ms)*/\r
-#define EWTSA_BOOST_TIME_0 500\r
-\r
-/* sleep setting range */\r
-#define EWTSA_SLP_MIN 0\r
-#define EWTSA_SLP_MAX 1\r
-\r
-/* delay setting range */\r
-#define EWTSA_DLY_MIN 1\r
-#define EWTSA_DLY_MAX 255\r
-\r
-/* range setting range */\r
-#define EWTSA_RNG_MIN 0\r
-#define EWTSA_RNG_MAX 3\r
-\r
-/* soc setting range */\r
-#define EWTSA_SOC_MIN 0\r
-#define EWTSA_SOC_MAX 1\r
-\r
-/* event setting range */\r
-#define EWTSA_EVE_MIN 0\r
-#define EWTSA_EVE_MAX 1\r
-\r
-/* init param */\r
-#define SLEEP_INIT_VAL (SLEEP_ON)\r
-#define DELAY_INIT_VAL 10\r
-#define RANGE_INIT_VAL 2 /*range 1000*/\r
-#define DLPF_INIT_VAL (DELAY_DLPF_2)\r
-#define CALIB_FUNC_INIT_VAL (EWTSA_ON)\r
-\r
-/*config store counter num*/\r
-#define CONFIG_COUNTER_MIN (6+9)\r
-#define CONFIG_COUNTER_MAX (32+9)\r
-\r
-/*command name */\r
-#define COMMAND_NAME_SOC 0\r
-#define COMMAND_NAME_DLY 1\r
-#define COMMAND_NAME_RNG 2\r
-#define COMMAND_NAME_EVE 3\r
-#define COMMAND_NAME_SLP 4\r
-#define COMMAND_NAME_NUM 5\r
-\r
-#define EWTSA_delay DELAY_INIT_VAL\r
-#define EWTSA_range RANGE_INIT_VAL\r
-#define EWTSA_calib EWTSA_ON\r
-\r
-/****************operate according to sensor chip:start************/\r
-static int i2c_read_byte(struct i2c_client *thisClient, unsigned char regAddr, char *pReadData)\r
+/* drivers/input/sensors/gyro/Ewtsa.c
+ *
+ * Copyright (C) 2012-2015 ROCKCHIP.
+ * Author: zhangaihui <zah@rock-chips.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * 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.
+ *
+ */
+#include <linux/interrupt.h>
+#include <linux/i2c.h>
+#include <linux/slab.h>
+#include <linux/irq.h>
+#include <linux/miscdevice.h>
+#include <linux/gpio.h>
+#include <asm/uaccess.h>
+#include <asm/atomic.h>
+#include <linux/delay.h>
+#include <linux/input.h>
+#include <linux/workqueue.h>
+#include <linux/freezer.h>
+#include <linux/of_gpio.h>
+#ifdef CONFIG_HAS_EARLYSUSPEND
+#include <linux/earlysuspend.h>
+#endif
+#include <linux/sensor-dev.h>
+
+/** This define controls compilation of the master device interface */
+/*#define EWTSA_MASTER_DEVICE*/
+/* configurable */
+#define GYRO_MOUNT_SWAP_XY 0 /* swap X, Y */
+#define GYRO_MOUNT_REVERSE_X 0 /* reverse X */
+#define GYRO_MOUNT_REVERSE_Y 0 /* reverse Y */
+#define GYRO_MOUNT_REVERSE_Z 0 /* reverse Z */
+
+/* macro defines */
+/*#define CHIP_ID 0x68*/
+#define DEVICE_NAME "ewtsa"
+#define EWTSA_ON 1
+#define EWTSA_OFF 0
+#define SLEEP_PIN 14
+#define DRDY_PIN 12
+#define DIAG_PIN 11
+#define MAX_VALUE 32768
+
+/* ewtsa_delay parameter */
+#define DELAY_THRES_MIN 1
+#define DELAY_THRES_1 4
+#define DELAY_THRES_2 9 /* msec x 90% */
+#define DELAY_THRES_3 18
+#define DELAY_THRES_4 45
+#define DELAY_THRES_5 90
+#define DELAY_THRES_6 128
+#define DELAY_THRES_MAX 255
+#define DELAY_DLPF_2 2
+#define DELAY_DLPF_3 3
+#define DELAY_DLPF_4 4
+#define DELAY_DLPF_5 5
+#define DELAY_DLPF_6 6
+#define DELAY_INTMIN_THRES 9
+
+#define DATA_RATE_1 0x01
+
+/* ewtsa_sleep parameter */
+#define SLEEP_OFF 0
+#define SLEEP_ON 1
+
+/* event mode */
+#define EWTSA_POLLING_MODE 0
+#define EWTSA_INTERUPT_MODE 1
+
+/* ewtsa register address */
+#define REG_SMPL 0x15
+#define REG_FS_DLPF 0x16
+#define REG_INT_CFG 0x17
+#define REG_INT_STATUS 0x1A
+#define REG_SELF_O_C 0x29
+#define REG_PWR_MGM 0x3E
+#define REG_MBURST_ALL 0xFF
+#define GYRO_DATA_REG 0x1D
+
+/* ewtsa register param */
+#define SELF_O_C_ENABLE 0x00
+#define SELF_O_C_DISABLE 0x01
+#define SLEEP_CTRL_ACTIVATE 0x40
+#define SLEEP_CTRL_SLEEP 0x00
+#define INT_CFG_INT_ENABLE 0x01
+#define INT_CFG_INT_DISABLE 0x00
+
+/* ewtsa interrupt control */
+#define EWSTA_INT_CLEAR 0x00
+#define EWSTA_INT_SKIP 0x01
+
+/* wait time(ms)*/
+#define EWTSA_BOOST_TIME_0 500
+
+/* sleep setting range */
+#define EWTSA_SLP_MIN 0
+#define EWTSA_SLP_MAX 1
+
+/* delay setting range */
+#define EWTSA_DLY_MIN 1
+#define EWTSA_DLY_MAX 255
+
+/* range setting range */
+#define EWTSA_RNG_MIN 0
+#define EWTSA_RNG_MAX 3
+
+/* soc setting range */
+#define EWTSA_SOC_MIN 0
+#define EWTSA_SOC_MAX 1
+
+/* event setting range */
+#define EWTSA_EVE_MIN 0
+#define EWTSA_EVE_MAX 1
+
+/* init param */
+#define SLEEP_INIT_VAL (SLEEP_ON)
+#define DELAY_INIT_VAL 10
+#define RANGE_INIT_VAL 2 /*range 1000*/
+#define DLPF_INIT_VAL (DELAY_DLPF_2)
+#define CALIB_FUNC_INIT_VAL (EWTSA_ON)
+
+/*config store counter num*/
+#define CONFIG_COUNTER_MIN (6+9)
+#define CONFIG_COUNTER_MAX (32+9)
+
+/*command name */
+#define COMMAND_NAME_SOC 0
+#define COMMAND_NAME_DLY 1
+#define COMMAND_NAME_RNG 2
+#define COMMAND_NAME_EVE 3
+#define COMMAND_NAME_SLP 4
+#define COMMAND_NAME_NUM 5
+
+#define EWTSA_delay DELAY_INIT_VAL
+#define EWTSA_range RANGE_INIT_VAL
+#define EWTSA_calib EWTSA_ON
+
+/****************operate according to sensor chip:start************/
+static int i2c_read_byte(struct i2c_client *thisClient, unsigned char regAddr, char *pReadData)
{
int ret = 0;
-
+
ret = i2c_master_send( thisClient, (char*)®Addr, 1);
if(ret < 0)
{
- printk("EWTSA send cAddress=0x%x error!\n", regAddr);\r
+ printk("EWTSA send cAddress=0x%x error!\n", regAddr);
return ret;
}
ret = i2c_master_recv( thisClient, (char*)pReadData, 1);
if(ret < 0)
{
- printk("EWTSAread *pReadData=0x%x error!\n", *pReadData);\r
+ printk("EWTSAread *pReadData=0x%x error!\n", *pReadData);
return ret;
}
return 1;
-}\r
-static int i2c_write_byte(struct i2c_client *thisClient, unsigned char regAddr, unsigned char writeData)\r
+}
+static int i2c_write_byte(struct i2c_client *thisClient, unsigned char regAddr, unsigned char writeData)
{
char write_data[2] = {0};
int ret=0;
-
+
write_data[0] = regAddr;
write_data[1] = writeData;
-
+
ret = i2c_master_send(thisClient, write_data, 2);
- if (ret < 0)
+ if (ret < 0)
{
ret = i2c_master_send(thisClient, write_data, 2);
- if (ret < 0)
+ if (ret < 0)
{
- printk("EWTSA send regAddr=0x%x error!\n", regAddr);\r
+ printk("EWTSA send regAddr=0x%x error!\n", regAddr);
return ret;
}
return 1;
}
-
+
return 1;
-}\r
-\r
-static int ewtsa_system_restart(struct i2c_client *client)\r
+}
+
+static int ewtsa_system_restart(struct i2c_client *client)
{
int err;
- char reg;\r
- char smpl , dlpf;\r
-\r
- err = i2c_write_byte(client, ( unsigned char)REG_SELF_O_C, ( unsigned char)SELF_O_C_DISABLE);\r
+ char reg;
+ char smpl , dlpf;
+
+ err = i2c_write_byte(client, ( unsigned char)REG_SELF_O_C, ( unsigned char)SELF_O_C_DISABLE);
if (err < 0) {
return err;
}
///Set SMPL register
- if (EWTSA_delay <= ( unsigned char)DELAY_THRES_2) {\r
- smpl = ( unsigned char)DELAY_INTMIN_THRES;\r
+ if (EWTSA_delay <= ( unsigned char)DELAY_THRES_2) {
+ smpl = ( unsigned char)DELAY_INTMIN_THRES;
}else{
- smpl = ( unsigned char)(EWTSA_delay - ( unsigned char)1);\r
- }\r
- err = i2c_write_byte(client, ( unsigned char)REG_SMPL, ( unsigned char)smpl);\r
+ smpl = ( unsigned char)(EWTSA_delay - ( unsigned char)1);
+ }
+ err = i2c_write_byte(client, ( unsigned char)REG_SMPL, ( unsigned char)smpl);
if (err < 0) {
return err;
}
///Set DLPF register
- if (EWTSA_delay >= ( unsigned char)DELAY_THRES_6){\r
- dlpf = ( unsigned char)DELAY_DLPF_6;\r
- }else if (EWTSA_delay >= ( unsigned char)DELAY_THRES_5) {\r
- dlpf = ( unsigned char)DELAY_DLPF_5;\r
- }else if (EWTSA_delay >= ( unsigned char)DELAY_THRES_4){\r
- dlpf = ( unsigned char)DELAY_DLPF_4;\r
- }else if (EWTSA_delay >= ( unsigned char)DELAY_THRES_3) {\r
- dlpf = ( unsigned char)DELAY_DLPF_3;\r
+ if (EWTSA_delay >= ( unsigned char)DELAY_THRES_6){
+ dlpf = ( unsigned char)DELAY_DLPF_6;
+ }else if (EWTSA_delay >= ( unsigned char)DELAY_THRES_5) {
+ dlpf = ( unsigned char)DELAY_DLPF_5;
+ }else if (EWTSA_delay >= ( unsigned char)DELAY_THRES_4){
+ dlpf = ( unsigned char)DELAY_DLPF_4;
+ }else if (EWTSA_delay >= ( unsigned char)DELAY_THRES_3) {
+ dlpf = ( unsigned char)DELAY_DLPF_3;
}else{
- dlpf = ( unsigned char)DELAY_DLPF_2;\r
+ dlpf = ( unsigned char)DELAY_DLPF_2;
}
- reg = ( unsigned char)(( unsigned char)(EWTSA_range << 3) | dlpf | ( unsigned char)0x80 ) ;\r
-\r
- err = i2c_write_byte(client, REG_FS_DLPF, reg);\r
+ reg = ( unsigned char)(( unsigned char)(EWTSA_range << 3) | dlpf | ( unsigned char)0x80 ) ;
+
+ err = i2c_write_byte(client, REG_FS_DLPF, reg);
if (err < 0) {
return err;
}
- if (EWTSA_calib== EWTSA_ON) { \r
- printk("EWTSA_set_calibration() start \n");\r
- err = i2c_write_byte(client,( unsigned char)REG_SELF_O_C, ( unsigned char)SELF_O_C_ENABLE);\r
- if (err < 0) {\r
- return err;\r
- }\r
- mdelay(500); \r
- printk("EWTSA_set_calibration() end \n");\r
- \r
+ if (EWTSA_calib== EWTSA_ON) {
+ printk("EWTSA_set_calibration() start \n");
+ err = i2c_write_byte(client,( unsigned char)REG_SELF_O_C, ( unsigned char)SELF_O_C_ENABLE);
+ if (err < 0) {
+ return err;
+ }
+ mdelay(500);
+ printk("EWTSA_set_calibration() end \n");
+
}
- return 0;\r
+ return 0;
+}
+
+static int ewtsa_disable(struct i2c_client *client)
+{
+ struct sensor_private_data *sensor =
+ (struct sensor_private_data *) i2c_get_clientdata(client);
+
+ gpio_direction_output(sensor->pdata->standby_pin, GPIO_HIGH);
+
+ DBG("%s: end \n",__func__);
+
+ return 0;
}
-\r
-static int ewtsa_disable(struct i2c_client *client)\r
+
+static int ewtsa_enable(struct i2c_client *client)
{
- struct sensor_private_data *sensor =\r
- (struct sensor_private_data *) i2c_get_clientdata(client); \r
- \r
- gpio_direction_output(sensor->pdata->standby_pin, GPIO_HIGH);\r
-\r
- DBG("%s: end \n",__func__); \r
-\r
- return 0; \r
+ int err;
+ struct sensor_private_data *sensor =
+ (struct sensor_private_data *) i2c_get_clientdata(client);
+
+ gpio_direction_output(sensor->pdata->standby_pin, GPIO_LOW);
+ err = i2c_write_byte(client, ( unsigned char)REG_PWR_MGM, ( unsigned char)SLEEP_CTRL_ACTIVATE);////0x44
+ if (err < 0){
+ //return err;
+ err = ewtsa_system_restart(client);///restart; only when i2c error
+ if (err < 0){
+ return err;
+ }
+ }
+
+ err = i2c_write_byte(client, ( unsigned char) REG_INT_CFG, ( unsigned char)INT_CFG_INT_ENABLE);
+ if (err < 0) {
+ return err;
+ }
+ DBG("%s: end \n",__func__);
+ return 0;
}
-\r
-static int ewtsa_enable(struct i2c_client *client)\r
+
+void gyro_dev_reset(struct i2c_client *client)
{
- int err;\r
- struct sensor_private_data *sensor =\r
- (struct sensor_private_data *) i2c_get_clientdata(client); \r
- \r
- gpio_direction_output(sensor->pdata->standby_pin, GPIO_LOW);\r
- err = i2c_write_byte(client, ( unsigned char)REG_PWR_MGM, ( unsigned char)SLEEP_CTRL_ACTIVATE);////0x44\r
- if (err < 0){\r
- //return err;\r
- err = ewtsa_system_restart(client);///restart; only when i2c error\r
- if (err < 0){\r
- return err;\r
- }\r
- }\r
-\r
- err = i2c_write_byte(client, ( unsigned char) REG_INT_CFG, ( unsigned char)INT_CFG_INT_ENABLE);\r
- if (err < 0) {\r
- return err;\r
- }\r
- DBG("%s: end \n",__func__); \r
- return 0;\r
+ struct sensor_private_data *sensor =
+ (struct sensor_private_data *) i2c_get_clientdata(client);
+
+
+ DBG("%s\n",__func__);
+ gpio_direction_output(sensor->pdata->standby_pin, GPIO_HIGH);
+ msleep(100);
+ gpio_direction_output(sensor->pdata->standby_pin, GPIO_LOW);
+ msleep(100);
}
-\r
-void gyro_dev_reset(struct i2c_client *client)\r
+
+static int sensor_active(struct i2c_client *client, int enable, int rate)
{
- struct sensor_private_data *sensor =\r
- (struct sensor_private_data *) i2c_get_clientdata(client); \r
-\r
- \r
- DBG("%s\n",__func__);\r
- gpio_direction_output(sensor->pdata->standby_pin, GPIO_HIGH);\r
- msleep(100); \r
- gpio_direction_output(sensor->pdata->standby_pin, GPIO_LOW);\r
- msleep(100); \r
-}\r
-\r
-static int sensor_active(struct i2c_client *client, int enable, int rate)\r
-{\r
/*
- struct sensor_private_data *sensor =\r
- (struct sensor_private_data *) i2c_get_clientdata(client); \r
- int status = 0;\r
+ struct sensor_private_data *sensor =
+ (struct sensor_private_data *) i2c_get_clientdata(client);
+ int status = 0;
*/
int result = 0;
- if(enable)\r
- { \r
- result=ewtsa_enable(client);\r
- }\r
- else\r
- {\r
- result=ewtsa_disable(client);\r
- }\r
-\r
- if(result)\r
- printk("%s:fail to active sensor\n",__func__);\r
-\r
- return result;\r
-\r
-}\r
-\r
-static int sensor_init(struct i2c_client *client)\r
-{ \r
- struct sensor_private_data *sensor =\r
- (struct sensor_private_data *) i2c_get_clientdata(client); \r
- int result = 0; \r
+ if(enable)
+ {
+ result=ewtsa_enable(client);
+ }
+ else
+ {
+ result=ewtsa_disable(client);
+ }
+
+ if(result)
+ printk("%s:fail to active sensor\n",__func__);
+
+ return result;
+
+}
+
+static int sensor_init(struct i2c_client *client)
+{
+ struct sensor_private_data *sensor =
+ (struct sensor_private_data *) i2c_get_clientdata(client);
+ int result = 0;
/*
- unsigned char buf[5]; \r
- unsigned char data = 0;\r
- int i = 0;\r
- char pReadData=0;\r
+ unsigned char buf[5];
+ unsigned char data = 0;
+ int i = 0;
+ char pReadData=0;
*/
- sensor->status_cur = SENSOR_OFF;\r
- gyro_dev_reset(client);\r
- ewtsa_system_restart(client);\r
- return result;\r
-}\r
-\r
-\r
-static int gyro_report_value(struct i2c_client *client, struct sensor_axis *axis)\r
-{\r
- struct sensor_private_data *sensor =\r
- (struct sensor_private_data *) i2c_get_clientdata(client); \r
-\r
- /* Report GYRO information */\r
- input_report_rel(sensor->input_dev, ABS_RX, axis->x);\r
- input_report_rel(sensor->input_dev, ABS_RY, axis->y);\r
- input_report_rel(sensor->input_dev, ABS_RZ, axis->z);\r
- input_sync(sensor->input_dev);\r
- DBG("gyro x==%d y==%d z==%d\n",axis->x,axis->y,axis->z);\r
-\r
- return 0;\r
-}\r
-\r
-static int sensor_report_value(struct i2c_client *client)\r
-{\r
- struct sensor_private_data *sensor =\r
- (struct sensor_private_data *) i2c_get_clientdata(client); \r
- struct sensor_platform_data *pdata = sensor->pdata;\r
- int ret = 0;\r
- int x = 0, y = 0, z = 0;\r
- struct sensor_axis axis;\r
- char buffer[6] = {0}; \r
- int i = 0;\r
+ sensor->status_cur = SENSOR_OFF;
+ gyro_dev_reset(client);
+ ewtsa_system_restart(client);
+ return result;
+}
+
+
+static int gyro_report_value(struct i2c_client *client, struct sensor_axis *axis)
+{
+ struct sensor_private_data *sensor =
+ (struct sensor_private_data *) i2c_get_clientdata(client);
+
+ /* Report GYRO information */
+ input_report_rel(sensor->input_dev, ABS_RX, axis->x);
+ input_report_rel(sensor->input_dev, ABS_RY, axis->y);
+ input_report_rel(sensor->input_dev, ABS_RZ, axis->z);
+ input_sync(sensor->input_dev);
+ DBG("gyro x==%d y==%d z==%d\n",axis->x,axis->y,axis->z);
+
+ return 0;
+}
+
+static int sensor_report_value(struct i2c_client *client)
+{
+ struct sensor_private_data *sensor =
+ (struct sensor_private_data *) i2c_get_clientdata(client);
+ struct sensor_platform_data *pdata = sensor->pdata;
+ int ret = 0;
+ int x = 0, y = 0, z = 0;
+ struct sensor_axis axis;
+ char buffer[6] = {0};
+ int i = 0;
/* int value = 0; */
-\r
- memset(buffer, 0, 6);\r
-#if 0 \r
- /* Data bytes from hardware xL, xH, yL, yH, zL, zH */ \r
- do {\r
- buffer[0] = sensor->ops->read_reg;\r
- ret = sensor_rx_data(client, buffer, sensor->ops->read_len);\r
- if (ret < 0)\r
- return ret;\r
- } while (0);\r
-#else\r
-\r
- for(i=0; i<6; i++)\r
+
+ memset(buffer, 0, 6);
+#if 0
+ /* Data bytes from hardware xL, xH, yL, yH, zL, zH */
+ do {
+ buffer[0] = sensor->ops->read_reg;
+ ret = sensor_rx_data(client, buffer, sensor->ops->read_len);
+ if (ret < 0)
+ return ret;
+ } while (0);
+#else
+
+ for(i=0; i<6; i++)
{
- i2c_read_byte(client, sensor->ops->read_reg + i,&buffer[i]);\r
- }\r
-#endif\r
- \r
- x = (short) (((buffer[0]) << 8) | buffer[1]);\r
- y = (short) (((buffer[2]) << 8) | buffer[3]);\r
- z = (short) (((buffer[4]) << 8) | buffer[5]);\r
-
- //printk("%s: x=%d y=%d z=%d \n",__func__, x,y,z);\r
+ i2c_read_byte(client, sensor->ops->read_reg + i,&buffer[i]);
+ }
+#endif
+
+ x = (short) (((buffer[0]) << 8) | buffer[1]);
+ y = (short) (((buffer[2]) << 8) | buffer[3]);
+ z = (short) (((buffer[4]) << 8) | buffer[5]);
+
+ //printk("%s: x=%d y=%d z=%d \n",__func__, x,y,z);
if(pdata && pdata->orientation)
{
axis.x = (pdata->orientation[0])*x + (pdata->orientation[1])*y + (pdata->orientation[2])*z;
- axis.y = (pdata->orientation[3])*x + (pdata->orientation[4])*y + (pdata->orientation[5])*z;
+ axis.y = (pdata->orientation[3])*x + (pdata->orientation[4])*y + (pdata->orientation[5])*z;
axis.z = (pdata->orientation[6])*x + (pdata->orientation[7])*y + (pdata->orientation[8])*z;
}
else
{
- axis.x = x;
+ axis.x = x;
axis.y = y;
- axis.z = z;
+ axis.z = z;
}
//filter gyro data
- if((abs(axis.x) > pdata->x_min)||(abs(axis.y) > pdata->y_min)||(abs(axis.z) > pdata->z_min))\r
- { \r
- gyro_report_value(client, &axis); \r
-\r
- /* »¥³âµØ»º´æÊý¾Ý. */\r
- mutex_lock(&(sensor->data_mutex) );\r
- sensor->axis = axis;\r
- mutex_unlock(&(sensor->data_mutex) );\r
- } \r
- \r
- return ret;\r
-}\r
-\r
-\r
-struct sensor_operate gyro_ewtsa_ops = {\r
- .name = "ewtsa",\r
- .type = SENSOR_TYPE_GYROSCOPE,//sensor type and it should be correct\r
- .id_i2c = GYRO_ID_EWTSA, //i2c id number\r
- .read_reg = GYRO_DATA_REG, //read data\r
- .read_len = 6, //data length\r
- .id_reg = -1, //read device id from this register\r
- .id_data = -1, //device id\r
- .precision = 8, //8 bits\r
- .ctrl_reg = REG_PWR_MGM, //enable or disable \r
- .int_status_reg = REG_INT_STATUS, //intterupt status register,if no exist then -1\r
- .range = {-32768,32768}, //range\r
- .trig = IRQF_TRIGGER_HIGH|IRQF_ONESHOT, \r
- .active = sensor_active, \r
- .init = sensor_init,\r
- .report = sensor_report_value,\r
-};\r
-\r
-/****************operate according to sensor chip:end************/\r
-\r
-//function name should not be changed\r
-static struct sensor_operate *gyro_get_ops(void)\r
-{\r
- return &gyro_ewtsa_ops;\r
-}\r
-\r
-\r
-static int __init gyro_ewtsa_init(void)\r
-{\r
- struct sensor_operate *ops = gyro_get_ops();\r
- int result = 0;\r
- int type = ops->type;\r
- result = sensor_register_slave(type, NULL, NULL, gyro_get_ops);\r
- return result;\r
-}\r
-\r
-static void __exit gyro_ewtsa_exit(void)\r
-{\r
- struct sensor_operate *ops = gyro_get_ops();\r
- int type = ops->type;\r
- sensor_unregister_slave(type, NULL, NULL, gyro_get_ops);\r
-}\r
-\r
-\r
-module_init(gyro_ewtsa_init);\r
-module_exit(gyro_ewtsa_exit);\r
-\r
-\r
+ if((abs(axis.x) > pdata->x_min)||(abs(axis.y) > pdata->y_min)||(abs(axis.z) > pdata->z_min))
+ {
+ gyro_report_value(client, &axis);
+
+ /* »¥³âµØ»º´æÊý¾Ý. */
+ mutex_lock(&(sensor->data_mutex) );
+ sensor->axis = axis;
+ mutex_unlock(&(sensor->data_mutex) );
+ }
+
+ return ret;
+}
+
+
+struct sensor_operate gyro_ewtsa_ops = {
+ .name = "ewtsa",
+ .type = SENSOR_TYPE_GYROSCOPE,//sensor type and it should be correct
+ .id_i2c = GYRO_ID_EWTSA, //i2c id number
+ .read_reg = GYRO_DATA_REG, //read data
+ .read_len = 6, //data length
+ .id_reg = -1, //read device id from this register
+ .id_data = -1, //device id
+ .precision = 8, //8 bits
+ .ctrl_reg = REG_PWR_MGM, //enable or disable
+ .int_status_reg = REG_INT_STATUS, //intterupt status register,if no exist then -1
+ .range = {-32768,32768}, //range
+ .trig = IRQF_TRIGGER_HIGH|IRQF_ONESHOT,
+ .active = sensor_active,
+ .init = sensor_init,
+ .report = sensor_report_value,
+};
+
+/****************operate according to sensor chip:end************/
+
+//function name should not be changed
+static struct sensor_operate *gyro_get_ops(void)
+{
+ return &gyro_ewtsa_ops;
+}
+
+
+static int __init gyro_ewtsa_init(void)
+{
+ struct sensor_operate *ops = gyro_get_ops();
+ int result = 0;
+ int type = ops->type;
+ result = sensor_register_slave(type, NULL, NULL, gyro_get_ops);
+ return result;
+}
+
+static void __exit gyro_ewtsa_exit(void)
+{
+ struct sensor_operate *ops = gyro_get_ops();
+ int type = ops->type;
+ sensor_unregister_slave(type, NULL, NULL, gyro_get_ops);
+}
+
+
+module_init(gyro_ewtsa_init);
+module_exit(gyro_ewtsa_exit);
+
+
projects / firefly-linux-kernel-4.4.55.git / blobdiff