-/* drivers/input/sensors/access/kxtik.c\r
- *\r
- * Copyright (C) 2012-2015 ROCKCHIP.\r
- * Author: luowei <lw@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/l3g4200d.h>\r
-#include <linux/sensor-dev.h>\r
-\r
-\r
-#define L3G4200D_ENABLE 0x08\r
-\r
-/****************operate according to sensor chip:start************/\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 result = 0;\r
- int status = 0;\r
- \r
- sensor->ops->ctrl_data = sensor_read_reg(client, sensor->ops->ctrl_reg);\r
-\r
- //register setting according to chip datasheet \r
- if(enable)\r
- { \r
- status = L3G4200D_ENABLE; //l3g4200d \r
- sensor->ops->ctrl_data |= status; \r
- }\r
- else\r
- {\r
- status = ~L3G4200D_ENABLE; //l3g4200d\r
- sensor->ops->ctrl_data &= status;\r
- }\r
-\r
- DBG("%s:reg=0x%x,reg_ctrl=0x%x,enable=%d\n",__func__,sensor->ops->ctrl_reg, sensor->ops->ctrl_data, enable);\r
- result = sensor_write_reg(client, sensor->ops->ctrl_reg, sensor->ops->ctrl_data);\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
- unsigned char buf[5]; \r
- unsigned char data = 0;\r
- int i = 0;\r
- \r
- result = sensor->ops->active(client,0,0);\r
- if(result)\r
- {\r
- printk("%s:line=%d,error\n",__func__,__LINE__);\r
- return result;\r
- }\r
- \r
- sensor->status_cur = SENSOR_OFF;\r
- \r
- buf[0] = 0x07; //27\r
- buf[1] = 0x00; \r
- buf[2] = 0x00; \r
- buf[3] = 0x20; //0x00\r
- buf[4] = 0x00; \r
- for(i=0; i<5; i++)\r
- {\r
- result = sensor_write_reg(client, sensor->ops->ctrl_reg+i, buf[i]);\r
- if(result)\r
- {\r
- printk("%s:line=%d,error\n",__func__,__LINE__);\r
- return result;\r
- }\r
- }\r
- \r
- result = sensor_read_reg(client, sensor->ops->ctrl_reg);\r
- if (result >= 0)\r
- data = result & 0x000F;\r
-
- sensor->ops->ctrl_data = data + ODR100_BW12_5; \r
- result = sensor_write_reg(client, sensor->ops->ctrl_reg, sensor->ops->ctrl_data);\r
- if(result)\r
- {\r
- printk("%s:line=%d,error\n",__func__,__LINE__);\r
- return result;\r
- }\r
- \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
- int value = 0;\r
- \r
- if(sensor->ops->read_len < 6) //sensor->ops->read_len = 6\r
- {\r
- printk("%s:lenth is error,len=%d\n",__func__,sensor->ops->read_len);\r
- return -1;\r
- }\r
- \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
+/* drivers/input/sensors/access/kxtik.c
+ *
+ * Copyright (C) 2012-2015 ROCKCHIP.
+ * Author: luowei <lw@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/l3g4200d.h>
+#include <linux/sensor-dev.h>
+
+
+#define L3G4200D_ENABLE 0x08
+
+/****************operate according to sensor chip:start************/
+
+static int sensor_active(struct i2c_client *client, int enable, int rate)
+{
+ struct sensor_private_data *sensor =
+ (struct sensor_private_data *) i2c_get_clientdata(client);
+ int result = 0;
+ int status = 0;
+
+ sensor->ops->ctrl_data = sensor_read_reg(client, sensor->ops->ctrl_reg);
+
+ //register setting according to chip datasheet
+ if(enable)
{
- //buffer[i] = sensor->ops->read_reg + i; \r
- buffer[i] = sensor_read_reg(client, sensor->ops->read_reg + i);\r
- }\r
-#endif\r
- x = (short) (((buffer[1]) << 8) | buffer[0]);\r
- y = (short) (((buffer[3]) << 8) | buffer[2]);\r
- z = (short) (((buffer[5]) << 8) | buffer[4]);\r
+ status = L3G4200D_ENABLE; //l3g4200d
+ sensor->ops->ctrl_data |= status;
+ }
+ else
+ {
+ status = ~L3G4200D_ENABLE; //l3g4200d
+ sensor->ops->ctrl_data &= status;
+ }
+
+ DBG("%s:reg=0x%x,reg_ctrl=0x%x,enable=%d\n",__func__,sensor->ops->ctrl_reg, sensor->ops->ctrl_data, enable);
+ result = sensor_write_reg(client, sensor->ops->ctrl_reg, sensor->ops->ctrl_data);
+ 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];
+ unsigned char data = 0;
+ int i = 0;
+
+ result = sensor->ops->active(client,0,0);
+ if(result)
+ {
+ printk("%s:line=%d,error\n",__func__,__LINE__);
+ return result;
+ }
+
+ sensor->status_cur = SENSOR_OFF;
+
+ buf[0] = 0x07; //27
+ buf[1] = 0x00;
+ buf[2] = 0x00;
+ buf[3] = 0x20; //0x00
+ buf[4] = 0x00;
+ for(i=0; i<5; i++)
+ {
+ result = sensor_write_reg(client, sensor->ops->ctrl_reg+i, buf[i]);
+ if(result)
+ {
+ printk("%s:line=%d,error\n",__func__,__LINE__);
+ return result;
+ }
+ }
+
+ result = sensor_read_reg(client, sensor->ops->ctrl_reg);
+ if (result >= 0)
+ data = result & 0x000F;
+
+ sensor->ops->ctrl_data = data + ODR100_BW12_5;
+ result = sensor_write_reg(client, sensor->ops->ctrl_reg, sensor->ops->ctrl_data);
+ if(result)
+ {
+ printk("%s:line=%d,error\n",__func__,__LINE__);
+ return result;
+ }
+
+ 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;
+
+ if(sensor->ops->read_len < 6) //sensor->ops->read_len = 6
+ {
+ printk("%s:lenth is error,len=%d\n",__func__,sensor->ops->read_len);
+ return -1;
+ }
+
+ 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++)
+ {
+ //buffer[i] = sensor->ops->read_reg + i;
+ buffer[i] = sensor_read_reg(client, sensor->ops->read_reg + i);
+ }
+#endif
+ x = (short) (((buffer[1]) << 8) | buffer[0]);
+ y = (short) (((buffer[3]) << 8) | buffer[2]);
+ z = (short) (((buffer[5]) << 8) | buffer[4]);
DBG("%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
- if((sensor->pdata->irq_enable)&& (sensor->ops->int_status_reg >= 0)) //read sensor intterupt status register\r
- {\r
- \r
- value = sensor_read_reg(client, sensor->ops->int_status_reg);\r
- DBG("%s:sensor int status :0x%x\n",__func__,value);\r
- }\r
- \r
- return ret;\r
-}\r
-\r
-\r
-struct sensor_operate gyro_l3g4200d_ops = {\r
- .name = "l3g4200d",\r
- .type = SENSOR_TYPE_GYROSCOPE,//sensor type and it should be correct\r
- .id_i2c = GYRO_ID_L3G4200D, //i2c id number\r
- .read_reg = GYRO_DATA_REG, //read data\r
- .read_len = 6, //data length\r
- .id_reg = GYRO_WHO_AM_I, //read device id from this register\r
- .id_data = GYRO_DEVID_L3G4200D, //device id\r
- .precision = 8, //8 bits\r
- .ctrl_reg = GYRO_CTRL_REG1, //enable or disable \r
- .int_status_reg = GYRO_INT_SRC, //intterupt status register,if no exist then -1\r
- .range = {-32768,32768}, //range\r
- .trig = IRQF_TRIGGER_LOW|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_l3g4200d_ops;\r
-}\r
-\r
-\r
-static int __init gyro_l3g4200d_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_l3g4200d_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_l3g4200d_init);\r
-module_exit(gyro_l3g4200d_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) );
+ }
+
+ if((sensor->pdata->irq_enable)&& (sensor->ops->int_status_reg >= 0)) //read sensor intterupt status register
+ {
+
+ value = sensor_read_reg(client, sensor->ops->int_status_reg);
+ DBG("%s:sensor int status :0x%x\n",__func__,value);
+ }
+
+ return ret;
+}
+
+
+struct sensor_operate gyro_l3g4200d_ops = {
+ .name = "l3g4200d",
+ .type = SENSOR_TYPE_GYROSCOPE,//sensor type and it should be correct
+ .id_i2c = GYRO_ID_L3G4200D, //i2c id number
+ .read_reg = GYRO_DATA_REG, //read data
+ .read_len = 6, //data length
+ .id_reg = GYRO_WHO_AM_I, //read device id from this register
+ .id_data = GYRO_DEVID_L3G4200D, //device id
+ .precision = 8, //8 bits
+ .ctrl_reg = GYRO_CTRL_REG1, //enable or disable
+ .int_status_reg = GYRO_INT_SRC, //intterupt status register,if no exist then -1
+ .range = {-32768,32768}, //range
+ .trig = IRQF_TRIGGER_LOW|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_l3g4200d_ops;
+}
+
+
+static int __init gyro_l3g4200d_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_l3g4200d_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_l3g4200d_init);
+module_exit(gyro_l3g4200d_exit);
+
+
projects / firefly-linux-kernel-4.4.55.git / blobdiff