From 2c9f4903b5317e22c6c20f49115079861a7c9245 Mon Sep 17 00:00:00 2001 From: luowei Date: Fri, 21 Jun 2013 09:58:22 +0800 Subject: [PATCH] sensor:add gsensor dmard10 support --- drivers/input/sensors/accel/Kconfig | 6 + drivers/input/sensors/accel/Makefile | 1 + drivers/input/sensors/accel/dmard10.c | 484 ++++++++++++++++++++++++++ drivers/input/sensors/sensor-dev.c | 3 +- include/linux/sensor-dev.h | 3 +- 5 files changed, 495 insertions(+), 2 deletions(-) create mode 100755 drivers/input/sensors/accel/dmard10.c diff --git a/drivers/input/sensors/accel/Kconfig b/drivers/input/sensors/accel/Kconfig index b1e1db854466..13c8c33a1681 100755 --- a/drivers/input/sensors/accel/Kconfig +++ b/drivers/input/sensors/accel/Kconfig @@ -46,6 +46,12 @@ config GS_MXC6225 To have support for your sepcific gsensor you will have to select het proper drivers which depend on this option. +config GS_DMT10 + bool "gsensor dmard10" + help + To have support for your sepcific gsensor you will have to + select het proper drivers which depend on this option. + config GS_BMA023 bool "gsensor bma023" help diff --git a/drivers/input/sensors/accel/Makefile b/drivers/input/sensors/accel/Makefile index d030dc1fff53..7978e00055aa 100755 --- a/drivers/input/sensors/accel/Makefile +++ b/drivers/input/sensors/accel/Makefile @@ -4,3 +4,4 @@ obj-$(CONFIG_GS_MMA8452) += mma8452.o obj-$(CONFIG_GS_LIS3DH) += lis3dh.o obj-$(CONFIG_GS_MMA7660) += mma7660.o obj-$(CONFIG_GS_MXC6225) += mxc622x.o +obj-$(CONFIG_GS_DMT10) += dmard10.o \ No newline at end of file diff --git a/drivers/input/sensors/accel/dmard10.c b/drivers/input/sensors/accel/dmard10.c new file mode 100755 index 000000000000..d6610b8b2fb3 --- /dev/null +++ b/drivers/input/sensors/accel/dmard10.c @@ -0,0 +1,484 @@ +/* drivers/input/sensors/access/dmard10.c + * + * Copyright (C) 2012-2015 ROCKCHIP. + * Author: guoyi + * + * 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 +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#ifdef CONFIG_HAS_EARLYSUSPEND +#include +#endif +#include + +/* Default register settings */ +#define RBUFF_SIZE 12 /* Rx buffer size */ + +#define REG_ACTR 0x00 +#define REG_WDAL 0x01 +#define REG_TAPNS 0x0f +#define REG_MISC2 0x1f +#define REG_AFEM 0x0c +#define REG_CKSEL 0x0d +#define REG_INTC 0x0e +#define REG_STADR 0x12 +#define REG_STAINT 0x1C +#define REG_PD 0x21 +#define REG_TCGYZ 0x26 +#define REG_X_OUT 0x41 + +#define MODE_Off 0x00 +#define MODE_ResetAtOff 0x01 +#define MODE_Standby 0x02 +#define MODE_ResetAtStandby 0x03 +#define MODE_Active 0x06 +#define MODE_Trigger 0x0a +#define MODE_ReadOTP 0x12 +#define MODE_WriteOTP 0x22 +#define MODE_WriteOTPBuf 0x42 +#define MODE_ResetDataPath 0x82 + +#define VALUE_STADR 0x55 +#define VALUE_STAINT 0xAA +#define VALUE_AFEM_AFEN_Normal 0x8f// AFEN set 1 , ATM[2:0]=b'000(normal),EN_Z/Y/X/T=1 +#define VALUE_AFEM_Normal 0x0f// AFEN set 0 , ATM[2:0]=b'000(normal),EN_Z/Y/X/T=1 +#define VALUE_INTC 0x00// INTC[6:5]=b'00 +#define VALUE_INTC_Interrupt_En 0x20// INTC[6:5]=b'01 (Data ready interrupt enable, active high at INT0) +#define VALUE_CKSEL_ODR_0_204 0x04// ODR[3:0]=b'0000 (0.78125Hz), CCK[3:0]=b'0100 (204.8kHZ) +#define VALUE_CKSEL_ODR_1_204 0x14// ODR[3:0]=b'0001 (1.5625Hz), CCK[3:0]=b'0100 (204.8kHZ) +#define VALUE_CKSEL_ODR_3_204 0x24// ODR[3:0]=b'0010 (3.125Hz), CCK[3:0]=b'0100 (204.8kHZ) +#define VALUE_CKSEL_ODR_6_204 0x34// ODR[3:0]=b'0011 (6.25Hz), CCK[3:0]=b'0100 (204.8kHZ) +#define VALUE_CKSEL_ODR_12_204 0x44// ODR[3:0]=b'0100 (12.5Hz), CCK[3:0]=b'0100 (204.8kHZ) +#define VALUE_CKSEL_ODR_25_204 0x54// ODR[3:0]=b'0101 (25Hz), CCK[3:0]=b'0100 (204.8kHZ) +#define VALUE_CKSEL_ODR_50_204 0x64// ODR[3:0]=b'0110 (50Hz), CCK[3:0]=b'0100 (204.8kHZ) +#define VALUE_CKSEL_ODR_100_204 0x74// ODR[3:0]=b'0111 (100Hz), CCK[3:0]=b'0100 (204.8kHZ) + +#define VALUE_TAPNS_NoFilter 0x00 // TAP1/TAP2 NO FILTER +#define VALUE_TAPNS_Ave_2 0x11 // TAP1/TAP2 Average 2 +#define VALUE_TAPNS_Ave_4 0x22 // TAP1/TAP2 Average 4 +#define VALUE_TAPNS_Ave_8 0x33 // TAP1/TAP2 Average 8 +#define VALUE_TAPNS_Ave_16 0x44 // TAP1/TAP2 Average 16 +#define VALUE_TAPNS_Ave_32 0x55 // TAP1/TAP2 Average 32 +#define VALUE_MISC2_OSCA_EN 0x08 +#define VALUE_PD_RST 0x52 + + +//#define DMARD10_REG_INTSU 0x47 +//#define DMARD10_REG_MODE 0x44 +//#define DMARD10_REG_SR 0x44 + + +#define DMARD10_REG_DS 0X49 +#define DMARD10_REG_ID 0X0F +#define DMARD10_REG_IT 0X4D +#define DMARD10_REG_INTSRC1_C 0X4A +#define DMARD10_REG_INTSRC1_S 0X4B +#define MMAIO 0xA1 + +// IOCTLs for DMARD10 library +#define ECS_IOCTL_INIT _IO(MMAIO, 0x01) +#define ECS_IOCTL_RESET _IO(MMAIO, 0x04) +#define ECS_IOCTL_CLOSE _IO(MMAIO, 0x02) +#define ECS_IOCTL_START _IO(MMAIO, 0x03) +#define ECS_IOCTL_GETDATA _IOR(MMAIO, 0x08, char[RBUFF_SIZE+1]) +#define SENSOR_CALIBRATION _IOWR(MMAIO, 0x05 , int[SENSOR_DATA_SIZE]) + +// IOCTLs for APPs +#define ECS_IOCTL_APP_SET_RATE _IOW(MMAIO, 0x10, char) + + //rate +#define DMARD10_RANGE 2000000 + +#define DMARD10_RATE_32 32 +/* +#define DMARD10_RATE_64 64 +#define DMARD10_RATE_120 128 +#define DMARD10_RATE_MIN DMARD10_RATE_1 +#define DMARD10_RATE_MAX DMARD10_RATE_120 +*/ +/*status*/ +#define DMARD10_OPEN 1 +#define DMARD10_CLOSE 0 +#define DMARD10_NORMAL 2 +#define DMARD10_LOWPOWER 3 + + + +#define DMARD10_IIC_ADDR 0x18 +#define DMARD10_REG_LEN 11 + + +#define DMARD10_FATOR 15 + + +#define DMARD10_X_OUT 0x41 +#define SENSOR_DATA_SIZE 3 +#define DMARD10_SENSOR_RATE_1 0 +#define DMARD10_SENSOR_RATE_2 1 +#define DMARD10_SENSOR_RATE_3 2 +#define DMARD10_SENSOR_RATE_4 3 + +#define POWER_OR_RATE 1 +#define SW_RESET 1 +#define DMARD10_INTERRUPUT 1 +#define DMARD10_POWERDOWN 0 +#define DMARD10_POWERON 1 + +//g-senor layout configuration, choose one of the following configuration + +#define AVG_NUM 16 +#define SENSOR_DATA_SIZE 3 +#define DEFAULT_SENSITIVITY 1024 + + + +#define DMARD10_ENABLE 1 + +#define DMARD10_REG_X_OUT 0x12 +#define DMARD10_REG_Y_OUT 0x1 +#define DMARD10_REG_Z_OUT 0x2 +#define DMARD10_REG_TILT 0x3 +#define DMARD10_REG_SRST 0x4 +#define DMARD10_REG_SPCNT 0x5 +#define DMARD10_REG_INTSU 0x6 +#define DMARD10_REG_MODE 0x7 +#define DMARD10_REG_SR 0x8 +#define DMARD10_REG_PDET 0x9 +#define DMARD10_REG_PD 0xa + +#define DMARD10_RANGE 2000000 +#define DMARD10_PRECISION 10 +#define DMARD10_BOUNDARY (0x1 << (DMARD10_PRECISION - 1)) +#define DMARD10_GRAVITY_STEP (DMARD10_RANGE / DMARD10_BOUNDARY) + + +struct sensor_axis_average { + int x_average; + int y_average; + int z_average; + int count; +}; + +static struct sensor_axis_average axis_average; +int gsensor_reset(struct i2c_client *client){ + struct sensor_private_data *sensor = + (struct sensor_private_data *) i2c_get_clientdata(client); + + char buffer[7], buffer2[2]; + /* 1. check D10 , VALUE_STADR = 0x55 , VALUE_STAINT = 0xAA */ + buffer[0] = REG_STADR; + buffer2[0] = REG_STAINT; + + sensor_rx_data(client, buffer, 2); + sensor_rx_data(client, buffer2, 2); + + if( buffer[0] == VALUE_STADR || buffer2[0] == VALUE_STAINT){ + DBG(KERN_INFO " REG_STADR_VALUE = %d , REG_STAINT_VALUE = %d\n", buffer[0], buffer2[0]); + DBG(KERN_INFO " %s DMT_DEVICE_NAME registered I2C driver!\n",__FUNCTION__); + } + else{ + DBG(KERN_INFO " %s gsensor I2C err @@@ REG_STADR_VALUE = %d , REG_STAINT_VALUE = %d \n", __func__, buffer[0], buffer2[0]); + return -1; + } + /* 2. Powerdown reset */ + buffer[0] = REG_PD; + buffer[1] = VALUE_PD_RST; + sensor_tx_data(client, buffer, 2); + /* 3. ACTR => Standby mode => Download OTP to parameter reg => Standby mode => Reset data path => Standby mode */ + buffer[0] = REG_ACTR; + buffer[1] = MODE_Standby; + buffer[2] = MODE_ReadOTP; + buffer[3] = MODE_Standby; + buffer[4] = MODE_ResetDataPath; + buffer[5] = MODE_Standby; + sensor_tx_data(client, buffer, 6); + /* 4. OSCA_EN = 1 ,TSTO = b'000(INT1 = normal, TEST0 = normal) */ + buffer[0] = REG_MISC2; + buffer[1] = VALUE_MISC2_OSCA_EN; + sensor_tx_data(client, buffer, 2); + /* 5. AFEN = 1(AFE will powerdown after ADC) */ + buffer[0] = REG_AFEM; + buffer[1] = VALUE_AFEM_AFEN_Normal; + buffer[2] = VALUE_CKSEL_ODR_100_204; + buffer[3] = VALUE_INTC; + buffer[4] = VALUE_TAPNS_Ave_2; + buffer[5] = 0x00; // DLYC, no delay timing + buffer[6] = 0x07; // INTD=1 (push-pull), INTA=1 (active high), AUTOT=1 (enable T) + sensor_tx_data(client, buffer, 7); + /* 6. write TCGYZ & TCGX */ + buffer[0] = REG_WDAL; // REG:0x01 + buffer[1] = 0x00; // set TC of Y,Z gain value + buffer[2] = 0x00; // set TC of X gain value + buffer[3] = 0x03; // Temperature coefficient of X,Y,Z gain + sensor_tx_data(client, buffer, 4); + + buffer[0] = REG_ACTR; // REG:0x00 + buffer[1] = MODE_Standby; // Standby + buffer[2] = MODE_WriteOTPBuf; // WriteOTPBuf + buffer[3] = MODE_Standby; // Standby + + /* 7. Activation mode */ + buffer[0] = REG_ACTR; + buffer[1] = MODE_Active; + sensor_tx_data(client, buffer, 2); + printk("\n dmard10 gsensor _reset SUCCESS!!\n"); + return 0; +} + +/****************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; + gsensor_reset(client); + sensor->ops->ctrl_data = sensor_read_reg(client, sensor->ops->ctrl_reg); + //register setting according to chip datasheet + if(enable) + { + status = DMARD10_ENABLE; //dmard10 + sensor->ops->ctrl_data |= status; + } + else + { + status = ~DMARD10_ENABLE; //dmard10 + 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; + + result = sensor->ops->active(client,0,0); + if(result) + { + printk("%s:line=%d,error\n",__func__,__LINE__); + return result; + } + + sensor->status_cur = SENSOR_OFF; + + DBG("%s:DMARD10_REG_TILT=0x%x\n",__func__,sensor_read_reg(client, DMARD10_REG_TILT)); + + result = sensor_write_reg(client, DMARD10_REG_SR, (0x01<<5)| 0x02); //32 Samples/Second Active and Auto-Sleep Mode + if(result) + { + printk("%s:line=%d,error\n",__func__,__LINE__); + return result; + } + + if(sensor->pdata->irq_enable) //open interrupt + { + result = sensor_write_reg(client, DMARD10_REG_INTSU, 1<<4);//enable int,GINT=1 + if(result) + { + printk("%s:line=%d,error\n",__func__,__LINE__); + return result; + } + } + + sensor->ops->ctrl_data = 1<<6; //Interrupt output INT is push-pull + 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; + } + + + memset(&axis_average, 0, sizeof(struct sensor_axis_average)); + + return result; +} + + +static int sensor_convert_data(struct i2c_client *client, char high_byte, char low_byte) +{ + s64 result; + + + result = ((int)high_byte << 8)|((int)low_byte); + + if (result < DMARD10_BOUNDARY){ + result = result* DMARD10_GRAVITY_STEP; + }else{ + result = ~( ((~result & (0x7fff>>(16-DMARD10_PRECISION)) ) + 1)* DMARD10_GRAVITY_STEP) + 1; + } + + return result; + +} + +static int gsensor_report_value(struct i2c_client *client, struct sensor_axis *axis) +{ + struct sensor_private_data *sensor = + (struct sensor_private_data *) i2c_get_clientdata(client); + + /* Report acceleration sensor information */ + input_report_abs(sensor->input_dev, ABS_X, axis->x); + input_report_abs(sensor->input_dev, ABS_Y, axis->y); + input_report_abs(sensor->input_dev, ABS_Z, axis->z); + input_sync(sensor->input_dev); + DBG("Gsensor x==%d y==%d z==%d\n",axis->x,axis->y,axis->z); + + return 0; +} +#define DMARD10_COUNT_AVERAGE 2 +#define GSENSOR_MIN 2 +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,y,z; + struct sensor_axis axis; + char buffer[8] = {0}; + char value = 0; + + if(sensor->ops->read_len < 3) //sensor->ops->read_len = 3 + { + printk("%s:lenth is error,len=%d\n",__func__,sensor->ops->read_len); + return -1; + } + + memset(buffer, 0, 8); + /* Data bytes from hardware xL, xH, yL, yH, zL, zH */ + do { + *buffer = sensor->ops->read_reg; + ret = sensor_rx_data(client, buffer, sensor->ops->read_len); + if (ret < 0) + return ret; + } while (0); + + //this gsensor need 6 bytes buffer + x = sensor_convert_data(sensor->client, buffer[3], buffer[2]); //buffer[1]:high bit + y = sensor_convert_data(sensor->client, buffer[5], buffer[4]); + z = sensor_convert_data(sensor->client, buffer[7], buffer[6]); + + 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.z = (pdata->orientation[6])*x + (pdata->orientation[7])*y + (pdata->orientation[8])*z; + + + axis_average.x_average += axis.x; + axis_average.y_average += axis.y; + axis_average.z_average += axis.z; + axis_average.count++; + + if(axis_average.count >= DMARD10_COUNT_AVERAGE) + { + axis.x = axis_average.x_average / axis_average.count; + axis.y = axis_average.y_average / axis_average.count; + axis.z = axis_average.z_average / axis_average.count; + + DBG( "%s: axis = %d %d %d \n", __func__, axis.x, axis.y, axis.z); + + memset(&axis_average, 0, sizeof(struct sensor_axis_average)); + + //Report event only while value is changed to save some power + 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)) + { + gsensor_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 gsensor_dmard10_ops = { + .name = "gs_dmard10", + .type = SENSOR_TYPE_ACCEL, //sensor type and it should be correct + .id_i2c = ACCEL_ID_DMARD10, //i2c id number + .read_reg = DMARD10_REG_X_OUT, //read data + .read_len = 8, //data length + .id_reg = SENSOR_UNKNOW_DATA, //read device id from this register + .id_data = SENSOR_UNKNOW_DATA, //device id + .precision = DMARD10_PRECISION, //12 bit + .ctrl_reg = DMARD10_REG_MODE, //enable or disable + .int_status_reg = SENSOR_UNKNOW_DATA, //intterupt status register + .range = {-DMARD10_RANGE,DMARD10_RANGE}, //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 *gsensor_get_ops(void) +{ + return &gsensor_dmard10_ops; +} + + +static int __init gsensor_dmard10_init(void) +{ + struct sensor_operate *ops = gsensor_get_ops(); + int result = 0; + int type = ops->type; + result = sensor_register_slave(type, NULL, NULL, gsensor_get_ops); + return result; +} + +static void __exit gsensor_dmard10_exit(void) +{ + struct sensor_operate *ops = gsensor_get_ops(); + int type = ops->type; + sensor_unregister_slave(type, NULL, NULL, gsensor_get_ops); +} + + +module_init(gsensor_dmard10_init); +module_exit(gsensor_dmard10_exit); + + + diff --git a/drivers/input/sensors/sensor-dev.c b/drivers/input/sensors/sensor-dev.c index 549792e51df3..3c3c6d1418b2 100755 --- a/drivers/input/sensors/sensor-dev.c +++ b/drivers/input/sensors/sensor-dev.c @@ -1747,7 +1747,8 @@ static const struct i2c_device_id sensor_id[] = { {"gs_kxtj9", ACCEL_ID_KXTJ9}, {"gs_lis3dh", ACCEL_ID_LIS3DH}, {"gs_mma7660", ACCEL_ID_MMA7660}, - {"gs_mxc6225", ACCEL_ID_MXC6225}, + {"gs_mxc6225", ACCEL_ID_MXC6225}, + {"gs_dmard10", ACCEL_ID_DMARD10}, /*compass*/ {"compass", COMPASS_ID_ALL}, {"ak8975", COMPASS_ID_AK8975}, diff --git a/include/linux/sensor-dev.h b/include/linux/sensor-dev.h index c5b699d03835..3fa49dff8fe1 100755 --- a/include/linux/sensor-dev.h +++ b/include/linux/sensor-dev.h @@ -56,6 +56,7 @@ enum sensor_id { ACCEL_ID_MMA7660, ACCEL_ID_MPU6050, ACCEL_ID_MXC6225, + ACCEL_ID_DMARD10, COMPASS_ID_ALL, COMPASS_ID_AK8975, @@ -75,7 +76,7 @@ enum sensor_id { GYRO_ID_ALL, GYRO_ID_L3G4200D, - GYRO_ID_L3G20D, + GYRO_ID_L3G20D, GYRO_ID_EWTSA, GYRO_ID_K3G, -- 2.34.1