linux gsensor demo

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我是靠谱客的博主舒心大碗，最近开发中收集的这篇文章主要介绍linux gsensor demo，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

#include <string.h>
#include <stdint.h>
#include <string.h>
#include <sys/cdefs.h>
#include <sys/types.h>

#include <cutils/log.h>

#include <hardware/sensors.h>
#include <utils/Timers.h>

char const* getSensorName(int type) {
    switch(type) {
        case SENSOR_TYPE_ACCELEROMETER:
            return "Acc";
        case SENSOR_TYPE_MAGNETIC_FIELD:
            return "Mag";
        case SENSOR_TYPE_ORIENTATION:
            return "Ori";
        case SENSOR_TYPE_GYROSCOPE:
            return "Gyr";
        case SENSOR_TYPE_LIGHT:
            return "Lux";
        case SENSOR_TYPE_PRESSURE:
            return "Bar";
        case SENSOR_TYPE_TEMPERATURE:
            return "Tmp";
        case SENSOR_TYPE_PROXIMITY:
            return "Prx";
        case SENSOR_TYPE_GRAVITY:
            return "Grv";
        case SENSOR_TYPE_LINEAR_ACCELERATION:
            return "Lac";
        case SENSOR_TYPE_ROTATION_VECTOR:
            return "Rot";
        case SENSOR_TYPE_RELATIVE_HUMIDITY:
            return "Hum";
        case SENSOR_TYPE_AMBIENT_TEMPERATURE:
            return "Tam";
    }
    return "ukn";
}

int main(int argc, char** argv)
{
    int err;
    struct sensors_poll_device_t* device;
    struct sensors_module_t* module;

    err = hw_get_module(SENSORS_HARDWARE_MODULE_ID, (hw_module_t const**)&module);
    if (err != 0) {
        printf("hw_get_module() failed (%s)n", strerror(-err));
        return 0;
    }

    err = sensors_open(&module->common, &device);
    if (err != 0) {
        printf("sensors_open() failed (%s)n", strerror(-err));
        return 0;
    }

    struct sensor_t const* list;
    int count = module->get_sensors_list(module, &list);
    printf("%d sensors found:n", count);
    for (int i=0 ; i<count ; i++) {
        printf("%sn"
                "tvendor: %sn"
                "tversion: %dn"
                "thandle: %dn"
                "ttype: %dn"
                "tmaxRange: %fn"
                "tresolution: %fn"
                "tpower: %f mAn",
                list[i].name,
                list[i].vendor,
                list[i].version,
                list[i].handle,
                list[i].type,
                list[i].maxRange,
                list[i].resolution,
                list[i].power);
    }

static const size_t numEvents = 16;
sensors_event_t buffer[numEvents];

    for (int i=0 ; i<count ; i++) {
        err = device->activate(device, list[i].handle, 0);
        if (err != 0) {
            printf("deactivate() for '%s'failed (%s)n",
                    list[i].name, strerror(-err));
            return 0;
        }
    }

    for (int i=0 ; i<count ; i++) {
        err = device->activate(device, list[i].handle, 1);
        if (err != 0) {
            printf("activate() for '%s'failed (%s)n",
                    list[i].name, strerror(-err));
            return 0;
        }
        device->setDelay(device, list[i].handle, ms2ns(10));
    }

    do {
        int n = device->poll(device, buffer, numEvents);
        if (n < 0) {
            printf("poll() failed (%s)n", strerror(-err));
            break;
        }

        printf("read %d events:n", n);
        for (int i=0 ; i<n ; i++) {
            const sensors_event_t& data = buffer[i];

            if (data.version != sizeof(sensors_event_t)) {
                printf("incorrect event version (version=%d, expected=%d",
                        data.version, sizeof(sensors_event_t));
                break;
            }

            switch(data.type) {
                case SENSOR_TYPE_ACCELEROMETER:
                case SENSOR_TYPE_MAGNETIC_FIELD:
                case SENSOR_TYPE_ORIENTATION:
                case SENSOR_TYPE_GYROSCOPE:
                case SENSOR_TYPE_GRAVITY:
                case SENSOR_TYPE_LINEAR_ACCELERATION:
                case SENSOR_TYPE_ROTATION_VECTOR:
                    printf("sensor=%s, time=%lld, value=<%5.1f,%5.1f,%5.1f>n",
                            getSensorName(data.type),
                            data.timestamp,
                            data.data[0],
                            data.data[1],
                            data.data[2]);
                    break;

                case SENSOR_TYPE_LIGHT:
                case SENSOR_TYPE_PRESSURE:
                case SENSOR_TYPE_TEMPERATURE:
                case SENSOR_TYPE_PROXIMITY:
                case SENSOR_TYPE_RELATIVE_HUMIDITY:
                case SENSOR_TYPE_AMBIENT_TEMPERATURE:
                    printf("sensor=%s, time=%lld, value=%fn",
                            getSensorName(data.type),
                            data.timestamp,
                            data.data[0]);
                    break;

                default:
                    printf("sensor=%d, time=%lld, value=<%f,%f,%f, ...>n",
                            data.type,
                            data.timestamp,
                            data.data[0],
                            data.data[1],
                            data.data[2]);
                    break;
            }
        }
    } while (1); // fix that

    err = sensors_close(device);
    if (err != 0) {
        printf("sensors_close() failed (%s)n", strerror(-err));
    }
    return 0;
}

CamLinux.mk

LOCAL_PATH:= $(call my-dir)
include $(CLEAR_VARS)

LOCAL_SRC_FILES:=
nusensors.cpp

LOCAL_SHARED_LIBRARIES :=
libcutils libhardware

LOCAL_MODULE:= test-nusensors

LOCAL_MODULE_TAGS := eng optional

include $(BUILD_EXECUTABLE)

patch1 :

diff --git a/device/softwinner/common/hardware/sensors/sensorDetect.cpp b/device/softwinner/common/hardware/sensors/sensorDetect.cpp
index 16ee80c..de1f4ac 100755
--- a/device/softwinner/common/hardware/sensors/sensorDetect.cpp
+++ b/device/softwinner/common/hardware/sensors/sensorDetect.cpp
@@ -435,6 +435,21 @@ struct sensor_extend_t gsensorList[] = {
                 { },
             },
     },
+ {
+  {
+            "da380", LSG_DAM380,
+        }, {
+       "da380 3-axis Accelerometer",
+    "Bosch",
+                1, 0,
+                SENSOR_TYPE_ACCELEROMETER,
+                2.0f*9.81f,
+                (2.0f*9.81f)/1024.0f,
+                0.2f, 0,
+                0, 0,
+                { },
+            },
+    },

};

diff --git a/device/softwinner/common/hardware/sensors/sensors.h b/device/softwinner/common/hardware/sensors/sensors.h
index e41d212..eb9288f 100755
--- a/device/softwinner/common/hardware/sensors/sensors.h
+++ b/device/softwinner/common/hardware/sensors/sensors.h
@@ -121,6 +121,7 @@ __BEGIN_DECLS
#define LSG_MC32X0                      (64.0f)
#define LSG_LIS3DE_ACC                  (65.0f)
#define LSG_BMA250                      (256.0f)
+#define LSG_DAM380                      (256.0f)
#define LSG_STK831X                     (21.0f)
#define LSG_DMARD06                     (256.0f)
#define LSG_DMARD10                     (1024.0f)
diff --git a/device/softwinner/crane-cdr/configs/gsensor.cfg b/device/softwinner/crane-cdr/configs/gsensor.cfg
index f9d0e71..8de9128 100755
--- a/device/softwinner/crane-cdr/configs/gsensor.cfg
+++ b/device/softwinner/crane-cdr/configs/gsensor.cfg
@@ -97,3 +97,13 @@ gsensor_direct_x = true
gsensor_direct_y = true
gsensor_direct_z = true
gsensor_xy_revert = false
+
+;--------------------------
+;name:da380
+;--------------------------
+gsensor_name = da380
+gsensor_direct_x = true
+gsensor_direct_y = true
+gsensor_direct_z = true
+gsensor_xy_revert = true
+

patch2:

diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index d097fbc..2407108 100755
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -947,6 +947,7 @@ config SENSORS_PCF8591
    hardware. If unsure, say N.

source drivers/hwmon/pmbus/Kconfig
+source drivers/hwmon/da380/Kconfig

config SENSORS_SHT15
  tristate "Sensiron humidity and temperature sensors. SHT15 and compat."
@@ -1488,3 +1489,4 @@ config SENSORS_INA219_ACCUMULATE
endif # I2C

endif # HWMON
+
diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile
index a12e58e..afeedee 100755
--- a/drivers/hwmon/Makefile
+++ b/drivers/hwmon/Makefile
@@ -137,6 +137,8 @@ obj-$(CONFIG_SENSORS_WM8350) += wm8350-hwmon.o

obj-$(CONFIG_PMBUS)  += pmbus/

+obj-$(CONFIG_DA380)  += da380/
+
obj-$(CONFIG_SENSORS_INA219) += ina219.o

ccflags-$(CONFIG_HWMON_DEBUG_CHIP) := -DDEBUG
diff --git a/drivers/input/sw-device.c b/drivers/input/sw-device.c
index 535e069..019a2d1 100755
--- a/drivers/input/sw-device.c
+++ b/drivers/input/sw-device.c
@@ -15,6 +15,7 @@ module_param_named(ctp_mask, ctp_mask, int , S_IRUGO | S_IWUSR | S_IWGRP);
/*gsensor info*/
static struct sw_device_info gsensors[] = {
         {    "bma250", {0x18, 0x19, 0x08, 0x38}, 0x00, {0x02,0x03,0xf9}, 0},
+        {     "da380", {0x27, 0x26            }, 0x01, {0x13          }, 0},
         {   "mma8452", {0x1c, 0x1d            }, 0x0d, {0x2A          }, 0},
         {   "mma7660", {0x4c                  }, 0x00, {0x00          }, 0},
         {   "mma865x", {0x1d                  }, 0x0d, {0x4A,0x5A     }, 0},

patch3:

diff --git a/pack/chips/sun8iw8p1/configs/CDR/sys_config.fex b/pack/chips/sun8iw8p1/configs/CDR/sys_config.fex
index 0068321..d8e064d 100755
--- a/pack/chips/sun8iw8p1/configs/CDR/sys_config.fex
+++ b/pack/chips/sun8iw8p1/configs/CDR/sys_config.fex
@@ -106,12 +106,17 @@ uart_debug_rx   = port:PG07<2><1><default><default>
;jtag_enable     = 0-disable jtag, 1-enable jtag
;----------------------------------------------------------------------------------
[jtag_para]
-jtag_enable     = 0
+jtag_enable     = 1
jtag_ms         = port:PB10<2><default><default><default>
jtag_ck         = port:PB11<2><default><default><default>
jtag_do         = port:PB12<2><default><default><default>
jtag_di         = port:PB13<2><default><default><default>

+;jtag_ms         = port:PF0<3><default><default><default>
+;jtag_ck         = port:PF5<3><default><default><default>
+;jtag_do         = port:PF3<3><default><default><default>
+;jtag_di         = port:PF1<3><default><default><default>
+
;----------------------------------------------------------------------------------
;[clock] pll configuration
;----------------------------------------------------------------------------------
@@ -825,6 +830,7 @@ gsensor_int2        =
[gsensor_list_para]
gsensor_det_used          = 1
bma250                    = 1
+da380                     = 1
mma8452                   = 1
mma7660                   = 1
mma865x                   = 1