--- /dev/null
+/* drivers/input/sensors/access/dmard10.c\r
+ *\r
+ * Copyright (C) 2012-2015 ROCKCHIP.\r
+ * Author: guoyi <gy@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 <mach/gpio.h>\r
+#include <mach/board.h> \r
+#ifdef CONFIG_HAS_EARLYSUSPEND\r
+#include <linux/earlysuspend.h>\r
+#endif\r
+#include <linux/sensor-dev.h>\r
+\r
+/* Default register settings */\r
+#define RBUFF_SIZE 12 /* Rx buffer size */\r
+\r
+#define REG_ACTR 0x00\r
+#define REG_WDAL 0x01\r
+#define REG_TAPNS 0x0f\r
+#define REG_MISC2 0x1f\r
+#define REG_AFEM 0x0c\r
+#define REG_CKSEL 0x0d\r
+#define REG_INTC 0x0e\r
+#define REG_STADR 0x12\r
+#define REG_STAINT 0x1C\r
+#define REG_PD 0x21\r
+#define REG_TCGYZ 0x26\r
+#define REG_X_OUT 0x41\r
+\r
+#define MODE_Off 0x00\r
+#define MODE_ResetAtOff 0x01\r
+#define MODE_Standby 0x02\r
+#define MODE_ResetAtStandby 0x03\r
+#define MODE_Active 0x06\r
+#define MODE_Trigger 0x0a\r
+#define MODE_ReadOTP 0x12\r
+#define MODE_WriteOTP 0x22\r
+#define MODE_WriteOTPBuf 0x42\r
+#define MODE_ResetDataPath 0x82\r
+\r
+#define VALUE_STADR 0x55\r
+#define VALUE_STAINT 0xAA\r
+#define VALUE_AFEM_AFEN_Normal 0x8f// AFEN set 1 , ATM[2:0]=b'000(normal),EN_Z/Y/X/T=1\r
+#define VALUE_AFEM_Normal 0x0f// AFEN set 0 , ATM[2:0]=b'000(normal),EN_Z/Y/X/T=1\r
+#define VALUE_INTC 0x00// INTC[6:5]=b'00 \r
+#define VALUE_INTC_Interrupt_En 0x20// INTC[6:5]=b'01 (Data ready interrupt enable, active high at INT0)\r
+#define VALUE_CKSEL_ODR_0_204 0x04// ODR[3:0]=b'0000 (0.78125Hz), CCK[3:0]=b'0100 (204.8kHZ)\r
+#define VALUE_CKSEL_ODR_1_204 0x14// ODR[3:0]=b'0001 (1.5625Hz), CCK[3:0]=b'0100 (204.8kHZ)\r
+#define VALUE_CKSEL_ODR_3_204 0x24// ODR[3:0]=b'0010 (3.125Hz), CCK[3:0]=b'0100 (204.8kHZ)\r
+#define VALUE_CKSEL_ODR_6_204 0x34// ODR[3:0]=b'0011 (6.25Hz), CCK[3:0]=b'0100 (204.8kHZ)\r
+#define VALUE_CKSEL_ODR_12_204 0x44// ODR[3:0]=b'0100 (12.5Hz), CCK[3:0]=b'0100 (204.8kHZ)\r
+#define VALUE_CKSEL_ODR_25_204 0x54// ODR[3:0]=b'0101 (25Hz), CCK[3:0]=b'0100 (204.8kHZ)\r
+#define VALUE_CKSEL_ODR_50_204 0x64// ODR[3:0]=b'0110 (50Hz), CCK[3:0]=b'0100 (204.8kHZ)\r
+#define VALUE_CKSEL_ODR_100_204 0x74// ODR[3:0]=b'0111 (100Hz), CCK[3:0]=b'0100 (204.8kHZ)\r
+\r
+#define VALUE_TAPNS_NoFilter 0x00 // TAP1/TAP2 NO FILTER\r
+#define VALUE_TAPNS_Ave_2 0x11 // TAP1/TAP2 Average 2\r
+#define VALUE_TAPNS_Ave_4 0x22 // TAP1/TAP2 Average 4\r
+#define VALUE_TAPNS_Ave_8 0x33 // TAP1/TAP2 Average 8\r
+#define VALUE_TAPNS_Ave_16 0x44 // TAP1/TAP2 Average 16\r
+#define VALUE_TAPNS_Ave_32 0x55 // TAP1/TAP2 Average 32\r
+#define VALUE_MISC2_OSCA_EN 0x08\r
+#define VALUE_PD_RST 0x52\r
+\r
+\r
+//#define DMARD10_REG_INTSU 0x47\r
+//#define DMARD10_REG_MODE 0x44\r
+//#define DMARD10_REG_SR 0x44\r
+\r
+\r
+#define DMARD10_REG_DS 0X49\r
+#define DMARD10_REG_ID 0X0F\r
+#define DMARD10_REG_IT 0X4D\r
+#define DMARD10_REG_INTSRC1_C 0X4A\r
+#define DMARD10_REG_INTSRC1_S 0X4B\r
+#define MMAIO 0xA1\r
+\r
+// IOCTLs for DMARD10 library \r
+#define ECS_IOCTL_INIT _IO(MMAIO, 0x01)\r
+#define ECS_IOCTL_RESET _IO(MMAIO, 0x04)\r
+#define ECS_IOCTL_CLOSE _IO(MMAIO, 0x02)\r
+#define ECS_IOCTL_START _IO(MMAIO, 0x03)\r
+#define ECS_IOCTL_GETDATA _IOR(MMAIO, 0x08, char[RBUFF_SIZE+1])\r
+#define SENSOR_CALIBRATION _IOWR(MMAIO, 0x05 , int[SENSOR_DATA_SIZE])\r
+ \r
+// IOCTLs for APPs \r
+#define ECS_IOCTL_APP_SET_RATE _IOW(MMAIO, 0x10, char)\r
+\r
+ //rate\r
+#define DMARD10_RANGE 2000000\r
+\r
+#define DMARD10_RATE_32 32\r
+/*\r
+#define DMARD10_RATE_64 64\r
+#define DMARD10_RATE_120 128\r
+#define DMARD10_RATE_MIN DMARD10_RATE_1\r
+#define DMARD10_RATE_MAX DMARD10_RATE_120\r
+*/\r
+/*status*/\r
+#define DMARD10_OPEN 1\r
+#define DMARD10_CLOSE 0\r
+#define DMARD10_NORMAL 2\r
+#define DMARD10_LOWPOWER 3\r
+\r
+\r
+\r
+#define DMARD10_IIC_ADDR 0x18 \r
+#define DMARD10_REG_LEN 11\r
+\r
+\r
+#define DMARD10_FATOR 15 \r
+\r
+\r
+#define DMARD10_X_OUT 0x41\r
+#define SENSOR_DATA_SIZE 3\r
+#define DMARD10_SENSOR_RATE_1 0\r
+#define DMARD10_SENSOR_RATE_2 1\r
+#define DMARD10_SENSOR_RATE_3 2\r
+#define DMARD10_SENSOR_RATE_4 3\r
+\r
+#define POWER_OR_RATE 1\r
+#define SW_RESET 1\r
+#define DMARD10_INTERRUPUT 1\r
+#define DMARD10_POWERDOWN 0 \r
+#define DMARD10_POWERON 1 \r
+\r
+//g-senor layout configuration, choose one of the following configuration\r
+\r
+#define AVG_NUM 16\r
+#define SENSOR_DATA_SIZE 3 \r
+#define DEFAULT_SENSITIVITY 1024\r
+\r
+\r
+\r
+#define DMARD10_ENABLE 1\r
+\r
+#define DMARD10_REG_X_OUT 0x12\r
+#define DMARD10_REG_Y_OUT 0x1\r
+#define DMARD10_REG_Z_OUT 0x2\r
+#define DMARD10_REG_TILT 0x3\r
+#define DMARD10_REG_SRST 0x4\r
+#define DMARD10_REG_SPCNT 0x5\r
+#define DMARD10_REG_INTSU 0x6\r
+#define DMARD10_REG_MODE 0x7\r
+#define DMARD10_REG_SR 0x8\r
+#define DMARD10_REG_PDET 0x9\r
+#define DMARD10_REG_PD 0xa\r
+\r
+#define DMARD10_RANGE 2000000\r
+#define DMARD10_PRECISION 10\r
+#define DMARD10_BOUNDARY (0x1 << (DMARD10_PRECISION - 1)) \r
+#define DMARD10_GRAVITY_STEP (DMARD10_RANGE / DMARD10_BOUNDARY)\r
+\r
+\r
+struct sensor_axis_average {\r
+ int x_average;\r
+ int y_average;\r
+ int z_average;\r
+ int count;\r
+};\r
+\r
+static struct sensor_axis_average axis_average;\r
+int gsensor_reset(struct i2c_client *client){\r
+ struct sensor_private_data *sensor =\r
+ (struct sensor_private_data *) i2c_get_clientdata(client); \r
+ \r
+ char buffer[7], buffer2[2];\r
+ /* 1. check D10 , VALUE_STADR = 0x55 , VALUE_STAINT = 0xAA */\r
+ buffer[0] = REG_STADR;\r
+ buffer2[0] = REG_STAINT;\r
+ \r
+ sensor_rx_data(client, buffer, 2);\r
+ sensor_rx_data(client, buffer2, 2);\r
+ \r
+ if( buffer[0] == VALUE_STADR || buffer2[0] == VALUE_STAINT){\r
+ DBG(KERN_INFO " REG_STADR_VALUE = %d , REG_STAINT_VALUE = %d\n", buffer[0], buffer2[0]);\r
+ DBG(KERN_INFO " %s DMT_DEVICE_NAME registered I2C driver!\n",__FUNCTION__);\r
+ }\r
+ else{\r
+ DBG(KERN_INFO " %s gsensor I2C err @@@ REG_STADR_VALUE = %d , REG_STAINT_VALUE = %d \n", __func__, buffer[0], buffer2[0]);\r
+ return -1;\r
+ }\r
+ /* 2. Powerdown reset */\r
+ buffer[0] = REG_PD;\r
+ buffer[1] = VALUE_PD_RST;\r
+ sensor_tx_data(client, buffer, 2);\r
+ /* 3. ACTR => Standby mode => Download OTP to parameter reg => Standby mode => Reset data path => Standby mode */\r
+ buffer[0] = REG_ACTR;\r
+ buffer[1] = MODE_Standby;\r
+ buffer[2] = MODE_ReadOTP;\r
+ buffer[3] = MODE_Standby;\r
+ buffer[4] = MODE_ResetDataPath;\r
+ buffer[5] = MODE_Standby;\r
+ sensor_tx_data(client, buffer, 6);\r
+ /* 4. OSCA_EN = 1 ,TSTO = b'000(INT1 = normal, TEST0 = normal) */\r
+ buffer[0] = REG_MISC2;\r
+ buffer[1] = VALUE_MISC2_OSCA_EN;\r
+ sensor_tx_data(client, buffer, 2);\r
+ /* 5. AFEN = 1(AFE will powerdown after ADC) */\r
+ buffer[0] = REG_AFEM;\r
+ buffer[1] = VALUE_AFEM_AFEN_Normal; \r
+ buffer[2] = VALUE_CKSEL_ODR_100_204; \r
+ buffer[3] = VALUE_INTC; \r
+ buffer[4] = VALUE_TAPNS_Ave_2;\r
+ buffer[5] = 0x00; // DLYC, no delay timing\r
+ buffer[6] = 0x07; // INTD=1 (push-pull), INTA=1 (active high), AUTOT=1 (enable T)\r
+ sensor_tx_data(client, buffer, 7);\r
+ /* 6. write TCGYZ & TCGX */\r
+ buffer[0] = REG_WDAL; // REG:0x01\r
+ buffer[1] = 0x00; // set TC of Y,Z gain value\r
+ buffer[2] = 0x00; // set TC of X gain value\r
+ buffer[3] = 0x03; // Temperature coefficient of X,Y,Z gain\r
+ sensor_tx_data(client, buffer, 4);\r
+ \r
+ buffer[0] = REG_ACTR; // REG:0x00\r
+ buffer[1] = MODE_Standby; // Standby\r
+ buffer[2] = MODE_WriteOTPBuf; // WriteOTPBuf \r
+ buffer[3] = MODE_Standby; // Standby\r
+ \r
+ /* 7. Activation mode */\r
+ buffer[0] = REG_ACTR;\r
+ buffer[1] = MODE_Active;\r
+ sensor_tx_data(client, buffer, 2);\r
+ printk("\n dmard10 gsensor _reset SUCCESS!!\n");\r
+ return 0;\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
+ gsensor_reset(client);\r
+ sensor->ops->ctrl_data = sensor_read_reg(client, sensor->ops->ctrl_reg);\r
+ //register setting according to chip datasheet \r
+ if(enable)\r
+ { \r
+ status = DMARD10_ENABLE; //dmard10\r
+ sensor->ops->ctrl_data |= status; \r
+ }\r
+ else\r
+ {\r
+ status = ~DMARD10_ENABLE; //dmard10\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
+ \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
+ DBG("%s:DMARD10_REG_TILT=0x%x\n",__func__,sensor_read_reg(client, DMARD10_REG_TILT));\r
+\r
+ result = sensor_write_reg(client, DMARD10_REG_SR, (0x01<<5)| 0x02); //32 Samples/Second Active and Auto-Sleep Mode\r
+ if(result)\r
+ {\r
+ printk("%s:line=%d,error\n",__func__,__LINE__);\r
+ return result;\r
+ }\r
+\r
+ if(sensor->pdata->irq_enable) //open interrupt\r
+ {\r
+ result = sensor_write_reg(client, DMARD10_REG_INTSU, 1<<4);//enable int,GINT=1\r
+ if(result)\r
+ {\r
+ printk("%s:line=%d,error\n",__func__,__LINE__);\r
+ return result;\r
+ }\r
+ }\r
+ \r
+ sensor->ops->ctrl_data = 1<<6; //Interrupt output INT is push-pull\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
+ \r
+ memset(&axis_average, 0, sizeof(struct sensor_axis_average));\r
+\r
+ return result;\r
+}\r
+\r
+\r
+static int sensor_convert_data(struct i2c_client *client, char high_byte, char low_byte)\r
+{\r
+ s64 result;\r
+ \r
+ \r
+ result = ((int)high_byte << 8)|((int)low_byte);\r
+ \r
+ if (result < DMARD10_BOUNDARY){\r
+ result = result* DMARD10_GRAVITY_STEP;\r
+ }else{\r
+ result = ~( ((~result & (0x7fff>>(16-DMARD10_PRECISION)) ) + 1)* DMARD10_GRAVITY_STEP) + 1;\r
+ }\r
+ \r
+ return result;\r
+\r
+}\r
+\r
+static int gsensor_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 acceleration sensor information */\r
+ input_report_abs(sensor->input_dev, ABS_X, axis->x);\r
+ input_report_abs(sensor->input_dev, ABS_Y, axis->y);\r
+ input_report_abs(sensor->input_dev, ABS_Z, axis->z);\r
+ input_sync(sensor->input_dev);\r
+ DBG("Gsensor x==%d y==%d z==%d\n",axis->x,axis->y,axis->z);\r
+\r
+ return 0;\r
+}\r
+#define DMARD10_COUNT_AVERAGE 2\r
+#define GSENSOR_MIN 2\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,y,z;\r
+ struct sensor_axis axis;\r
+ char buffer[8] = {0}; \r
+ char value = 0;\r
+ \r
+ if(sensor->ops->read_len < 3) //sensor->ops->read_len = 3\r
+ {\r
+ printk("%s:lenth is error,len=%d\n",__func__,sensor->ops->read_len);\r
+ return -1;\r
+ }\r
+ \r
+ memset(buffer, 0, 8);\r
+ /* Data bytes from hardware xL, xH, yL, yH, zL, zH */ \r
+ do {\r
+ *buffer = 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
+\r
+ //this gsensor need 6 bytes buffer\r
+ x = sensor_convert_data(sensor->client, buffer[3], buffer[2]); //buffer[1]:high bit \r
+ y = sensor_convert_data(sensor->client, buffer[5], buffer[4]);\r
+ z = sensor_convert_data(sensor->client, buffer[7], buffer[6]); \r
+ \r
+ axis.x = (pdata->orientation[0])*x + (pdata->orientation[1])*y + (pdata->orientation[2])*z;\r
+ axis.y = (pdata->orientation[3])*x + (pdata->orientation[4])*y + (pdata->orientation[5])*z; \r
+ axis.z = (pdata->orientation[6])*x + (pdata->orientation[7])*y + (pdata->orientation[8])*z;\r
+\r
+ \r
+ axis_average.x_average += axis.x;\r
+ axis_average.y_average += axis.y;\r
+ axis_average.z_average += axis.z;\r
+ axis_average.count++;\r
+ \r
+ if(axis_average.count >= DMARD10_COUNT_AVERAGE)\r
+ {\r
+ axis.x = axis_average.x_average / axis_average.count; \r
+ axis.y = axis_average.y_average / axis_average.count; \r
+ axis.z = axis_average.z_average / axis_average.count;\r
+ \r
+ DBG( "%s: axis = %d %d %d \n", __func__, axis.x, axis.y, axis.z);\r
+ \r
+ memset(&axis_average, 0, sizeof(struct sensor_axis_average));\r
+ \r
+ //Report event only while value is changed to save some power\r
+ if((abs(sensor->axis.x - axis.x) > GSENSOR_MIN) || (abs(sensor->axis.y - axis.y) > GSENSOR_MIN) || (abs(sensor->axis.z - axis.z) > GSENSOR_MIN))\r
+ {\r
+ gsensor_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
+ \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 gsensor_dmard10_ops = {\r
+ .name = "gs_dmard10",\r
+ .type = SENSOR_TYPE_ACCEL, //sensor type and it should be correct\r
+ .id_i2c = ACCEL_ID_DMARD10, //i2c id number\r
+ .read_reg = DMARD10_REG_X_OUT, //read data\r
+ .read_len = 8, //data length\r
+ .id_reg = SENSOR_UNKNOW_DATA, //read device id from this register\r
+ .id_data = SENSOR_UNKNOW_DATA, //device id\r
+ .precision = DMARD10_PRECISION, //12 bit\r
+ .ctrl_reg = DMARD10_REG_MODE, //enable or disable \r
+ .int_status_reg = SENSOR_UNKNOW_DATA, //intterupt status register\r
+ .range = {-DMARD10_RANGE,DMARD10_RANGE}, //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 *gsensor_get_ops(void)\r
+{\r
+ return &gsensor_dmard10_ops;\r
+}\r
+\r
+\r
+static int __init gsensor_dmard10_init(void)\r
+{\r
+ struct sensor_operate *ops = gsensor_get_ops();\r
+ int result = 0;\r
+ int type = ops->type;\r
+ result = sensor_register_slave(type, NULL, NULL, gsensor_get_ops); \r
+ return result;\r
+}\r
+\r
+static void __exit gsensor_dmard10_exit(void)\r
+{\r
+ struct sensor_operate *ops = gsensor_get_ops();\r
+ int type = ops->type;\r
+ sensor_unregister_slave(type, NULL, NULL, gsensor_get_ops);\r
+}\r
+\r
+\r
+module_init(gsensor_dmard10_init);\r
+module_exit(gsensor_dmard10_exit);\r
+\r
+\r
+\r
projects / firefly-linux-kernel-4.4.55.git / commitdiff