-/* 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/sensor-dev.h>\r
-\r
-\r
-#define ALS_CMD 0x01\r
-#define ALS_DT1 0x02\r
-#define ALS_DT2 0X03\r
-#define ALS_THDH1 0X04\r
-#define ALS_THDH2 0X05\r
-#define ALS_THDL1 0X06\r
-#define ALS_THDL2 0X07\r
-#define STA_TUS 0X08\r
-#define PS_CMD 0X09\r
-#define PS_DT 0X0A\r
-#define PS_THDH 0X0B\r
-#define PS_THDL 0X0C\r
-#define SW_RESET 0X80\r
-\r
-//ALS_CMD\r
-#define ALS_SD_ENABLE (0<<0)\r
-#define ALS_SD_DISABLE (1<<0)\r
-#define ALS_INT_DISABLE (0<<1)\r
-#define ALS_INT_ENABLE (1<<1)\r
-#define ALS_1T_100MS (0<<2)\r
-#define ALS_2T_200MS (1<<2)\r
-#define ALS_4T_400MS (2<<2)\r
-#define ALS_8T_800MS (3<<2)\r
-#define ALS_RANGE_57671 (0<<6)\r
-#define ALS_RANGE_28836 (1<<6)\r
-\r
-//PS_CMD\r
-#define PS_SD_ENABLE (0<<0)\r
-#define PS_SD_DISABLE (1<<0)\r
-#define PS_INT_DISABLE (0<<1)\r
-#define PS_INT_ENABLE (1<<1)\r
-#define PS_10T_2MS (0<<2)\r
-#define PS_15T_3MS (1<<2)\r
-#define PS_20T_4MS (2<<2)\r
-#define PS_25T_5MS (3<<2)\r
-#define PS_CUR_100MA (0<<4)\r
-#define PS_CUR_200MA (1<<4)\r
-#define PS_SLP_10MS (0<<5)\r
-#define PS_SLP_30MS (1<<5)\r
-#define PS_SLP_90MS (2<<5)\r
-#define PS_SLP_270MS (3<<5)\r
-#define TRIG_PS_OR_LS (0<<7)\r
-#define TRIG_PS_AND_LS (1<<7)\r
-\r
-//STA_TUS\r
-#define STA_PS_INT (1<<5)\r
-#define STA_ALS_INT (1<<4)\r
-\r
-\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 = ALS_SD_DISABLE; \r
- sensor->ops->ctrl_data |= status; \r
- }\r
- else\r
- {\r
- status = ~ALS_SD_DISABLE;\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
- if(enable)\r
- sensor->ops->report(sensor->client);\r
- \r
- return result;\r
-\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
- \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
- result = sensor_write_reg(client, SW_RESET, 0);\r
- if(result)\r
- {\r
- printk("%s:line=%d,error\n",__func__,__LINE__);\r
- return result;\r
- }\r
-\r
- result = sensor_write_reg(client, ALS_THDH1, 0);//it is important,if not then als can not trig intterupt\r
- if(result)\r
- {\r
- printk("%s:line=%d,error\n",__func__,__LINE__);\r
- return result;\r
- }\r
-\r
- result = sensor_write_reg(client, ALS_THDH2, 0);\r
- if(result)\r
- {\r
- printk("%s:line=%d,error\n",__func__,__LINE__);\r
- return result;\r
- } \r
-\r
- sensor->ops->ctrl_data |= ALS_1T_100MS;\r
-\r
- if(sensor->pdata->irq_enable)\r
- sensor->ops->ctrl_data |= ALS_INT_ENABLE;\r
- else\r
- sensor->ops->ctrl_data &= ~ALS_INT_ENABLE;\r
- \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 light_report_value(struct input_dev *input, int data)\r
-{\r
- unsigned char index = 0;\r
- if(data <= 100){\r
- index = 0;goto report;\r
- }\r
- else if(data <= 1600){\r
- index = 1;goto report;\r
- }\r
- else if(data <= 2250){\r
- index = 2;goto report;\r
- }\r
- else if(data <= 3200){\r
- index = 3;goto report;\r
- }\r
- else if(data <= 6400){\r
- index = 4;goto report;\r
- }\r
- else if(data <= 12800){\r
- index = 5;goto report;\r
- }\r
- else if(data <= 26000){\r
- index = 6;goto report;\r
- }\r
- else{\r
- index = 7;goto report;\r
- }\r
-\r
-report:\r
- input_report_abs(input, ABS_MISC, index);\r
- input_sync(input);\r
- \r
- return index;\r
-}\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
- int result = 0;\r
- int value = 0;\r
- char buffer[2] = {0}; \r
- char index = 0;\r
- \r
- if(sensor->ops->read_len < 2) //sensor->ops->read_len = 2\r
- {\r
- printk("%s:lenth is error,len=%d\n",__func__,sensor->ops->read_len);\r
- return -1;\r
- }\r
- \r
- memset(buffer, 0, 2);\r
-\r
- buffer[0] = sensor->ops->read_reg;\r
- result = sensor_rx_data(client, buffer, sensor->ops->read_len); \r
- if(result)\r
- {\r
- printk("%s:line=%d,error\n",__func__,__LINE__);\r
- return result;\r
- }\r
-\r
- value = (buffer[0] << 8) | buffer[1];\r
-\r
- \r
- index = light_report_value(sensor->input_dev, value);\r
-\r
- DBG("%s:%s result=0x%x,index=%d\n",__func__,sensor->ops->name, value,index);\r
- \r
- if(sensor->pdata->irq_enable)\r
- {\r
- if(sensor->ops->int_status_reg)\r
- { \r
- value = sensor_read_reg(client, sensor->ops->int_status_reg);\r
- }\r
- \r
- if(value & STA_ALS_INT)\r
- {\r
- value &= ~STA_ALS_INT;\r
- result = sensor_write_reg(client, sensor->ops->int_status_reg,value); //clear int\r
- if(result)\r
- {\r
- printk("%s:line=%d,error\n",__func__,__LINE__);\r
- return result;\r
- }\r
- }\r
- }\r
- \r
- \r
- return result;\r
-}\r
-\r
-struct sensor_operate light_stk3171_ops = {\r
- .name = "ls_stk3171",\r
- .type = SENSOR_TYPE_LIGHT, //sensor type and it should be correct\r
- .id_i2c = LIGHT_ID_STK3171, //i2c id number\r
- .read_reg = ALS_DT1, //read data\r
- .read_len = 2, //data length\r
- .id_reg = SENSOR_UNKNOW_DATA, //read device id from this register\r
- .id_data = SENSOR_UNKNOW_DATA, //device id\r
- .precision = 16, //8 bits\r
- .ctrl_reg = ALS_CMD, //enable or disable \r
- .int_status_reg = STA_TUS, //intterupt status register\r
- .range = {100,65535}, //range\r
- .brightness ={10,255}, //brightness\r
- .trig = IRQF_TRIGGER_LOW | IRQF_ONESHOT | IRQF_SHARED, \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 *light_get_ops(void)\r
-{\r
- return &light_stk3171_ops;\r
-}\r
-\r
-\r
-static int __init light_stk3171_init(void)\r
-{\r
- struct sensor_operate *ops = light_get_ops();\r
- int result = 0;\r
- int type = ops->type;\r
- result = sensor_register_slave(type, NULL, NULL, light_get_ops);\r
- return result;\r
-}\r
-\r
-static void __exit light_stk3171_exit(void)\r
-{\r
- struct sensor_operate *ops = light_get_ops();\r
- int type = ops->type;\r
- sensor_unregister_slave(type, NULL, NULL, light_get_ops);\r
-}\r
-\r
-\r
-module_init(light_stk3171_init);\r
-module_exit(light_stk3171_exit);\r
-\r
-\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/sensor-dev.h>
+
+
+#define ALS_CMD 0x01
+#define ALS_DT1 0x02
+#define ALS_DT2 0X03
+#define ALS_THDH1 0X04
+#define ALS_THDH2 0X05
+#define ALS_THDL1 0X06
+#define ALS_THDL2 0X07
+#define STA_TUS 0X08
+#define PS_CMD 0X09
+#define PS_DT 0X0A
+#define PS_THDH 0X0B
+#define PS_THDL 0X0C
+#define SW_RESET 0X80
+
+//ALS_CMD
+#define ALS_SD_ENABLE (0<<0)
+#define ALS_SD_DISABLE (1<<0)
+#define ALS_INT_DISABLE (0<<1)
+#define ALS_INT_ENABLE (1<<1)
+#define ALS_1T_100MS (0<<2)
+#define ALS_2T_200MS (1<<2)
+#define ALS_4T_400MS (2<<2)
+#define ALS_8T_800MS (3<<2)
+#define ALS_RANGE_57671 (0<<6)
+#define ALS_RANGE_28836 (1<<6)
+
+//PS_CMD
+#define PS_SD_ENABLE (0<<0)
+#define PS_SD_DISABLE (1<<0)
+#define PS_INT_DISABLE (0<<1)
+#define PS_INT_ENABLE (1<<1)
+#define PS_10T_2MS (0<<2)
+#define PS_15T_3MS (1<<2)
+#define PS_20T_4MS (2<<2)
+#define PS_25T_5MS (3<<2)
+#define PS_CUR_100MA (0<<4)
+#define PS_CUR_200MA (1<<4)
+#define PS_SLP_10MS (0<<5)
+#define PS_SLP_30MS (1<<5)
+#define PS_SLP_90MS (2<<5)
+#define PS_SLP_270MS (3<<5)
+#define TRIG_PS_OR_LS (0<<7)
+#define TRIG_PS_AND_LS (1<<7)
+
+//STA_TUS
+#define STA_PS_INT (1<<5)
+#define STA_ALS_INT (1<<4)
+
+
+
+/****************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)
+ {
+ status = ALS_SD_DISABLE;
+ sensor->ops->ctrl_data |= status;
+ }
+ else
+ {
+ status = ~ALS_SD_DISABLE;
+ 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__);
+
+ if(enable)
+ sensor->ops->report(sensor->client);
+
+ 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;
+
+ result = sensor->ops->active(client,0,0);
+ if(result)
+ {
+ printk("%s:line=%d,error\n",__func__,__LINE__);
+ return result;
+ }
+
+ sensor->status_cur = SENSOR_OFF;
+
+ result = sensor_write_reg(client, SW_RESET, 0);
+ if(result)
+ {
+ printk("%s:line=%d,error\n",__func__,__LINE__);
+ return result;
+ }
+
+ result = sensor_write_reg(client, ALS_THDH1, 0);//it is important,if not then als can not trig intterupt
+ if(result)
+ {
+ printk("%s:line=%d,error\n",__func__,__LINE__);
+ return result;
+ }
+
+ result = sensor_write_reg(client, ALS_THDH2, 0);
+ if(result)
+ {
+ printk("%s:line=%d,error\n",__func__,__LINE__);
+ return result;
+ }
+
+ sensor->ops->ctrl_data |= ALS_1T_100MS;
+
+ if(sensor->pdata->irq_enable)
+ sensor->ops->ctrl_data |= ALS_INT_ENABLE;
+ else
+ sensor->ops->ctrl_data &= ~ALS_INT_ENABLE;
+
+ 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 light_report_value(struct input_dev *input, int data)
+{
+ unsigned char index = 0;
+ if(data <= 100){
+ index = 0;goto report;
+ }
+ else if(data <= 1600){
+ index = 1;goto report;
+ }
+ else if(data <= 2250){
+ index = 2;goto report;
+ }
+ else if(data <= 3200){
+ index = 3;goto report;
+ }
+ else if(data <= 6400){
+ index = 4;goto report;
+ }
+ else if(data <= 12800){
+ index = 5;goto report;
+ }
+ else if(data <= 26000){
+ index = 6;goto report;
+ }
+ else{
+ index = 7;goto report;
+ }
+
+report:
+ input_report_abs(input, ABS_MISC, index);
+ input_sync(input);
+
+ return index;
+}
+
+
+static int sensor_report_value(struct i2c_client *client)
+{
+ struct sensor_private_data *sensor =
+ (struct sensor_private_data *) i2c_get_clientdata(client);
+ int result = 0;
+ int value = 0;
+ char buffer[2] = {0};
+ char index = 0;
+
+ if(sensor->ops->read_len < 2) //sensor->ops->read_len = 2
+ {
+ printk("%s:lenth is error,len=%d\n",__func__,sensor->ops->read_len);
+ return -1;
+ }
+
+ memset(buffer, 0, 2);
+
+ buffer[0] = sensor->ops->read_reg;
+ result = sensor_rx_data(client, buffer, sensor->ops->read_len);
+ if(result)
+ {
+ printk("%s:line=%d,error\n",__func__,__LINE__);
+ return result;
+ }
+
+ value = (buffer[0] << 8) | buffer[1];
+
+
+ index = light_report_value(sensor->input_dev, value);
+
+ DBG("%s:%s result=0x%x,index=%d\n",__func__,sensor->ops->name, value,index);
+
+ if(sensor->pdata->irq_enable)
+ {
+ if(sensor->ops->int_status_reg)
+ {
+ value = sensor_read_reg(client, sensor->ops->int_status_reg);
+ }
+
+ if(value & STA_ALS_INT)
+ {
+ value &= ~STA_ALS_INT;
+ result = sensor_write_reg(client, sensor->ops->int_status_reg,value); //clear int
+ if(result)
+ {
+ printk("%s:line=%d,error\n",__func__,__LINE__);
+ return result;
+ }
+ }
+ }
+
+
+ return result;
+}
+
+struct sensor_operate light_stk3171_ops = {
+ .name = "ls_stk3171",
+ .type = SENSOR_TYPE_LIGHT, //sensor type and it should be correct
+ .id_i2c = LIGHT_ID_STK3171, //i2c id number
+ .read_reg = ALS_DT1, //read data
+ .read_len = 2, //data length
+ .id_reg = SENSOR_UNKNOW_DATA, //read device id from this register
+ .id_data = SENSOR_UNKNOW_DATA, //device id
+ .precision = 16, //8 bits
+ .ctrl_reg = ALS_CMD, //enable or disable
+ .int_status_reg = STA_TUS, //intterupt status register
+ .range = {100,65535}, //range
+ .brightness ={10,255}, //brightness
+ .trig = IRQF_TRIGGER_LOW | IRQF_ONESHOT | IRQF_SHARED,
+ .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 *light_get_ops(void)
+{
+ return &light_stk3171_ops;
+}
+
+
+static int __init light_stk3171_init(void)
+{
+ struct sensor_operate *ops = light_get_ops();
+ int result = 0;
+ int type = ops->type;
+ result = sensor_register_slave(type, NULL, NULL, light_get_ops);
+ return result;
+}
+
+static void __exit light_stk3171_exit(void)
+{
+ struct sensor_operate *ops = light_get_ops();
+ int type = ops->type;
+ sensor_unregister_slave(type, NULL, NULL, light_get_ops);
+}
+
+
+module_init(light_stk3171_init);
+module_exit(light_stk3171_exit);
+
+
projects / firefly-linux-kernel-4.4.55.git / blobdiff