14.sensor調試日誌

注
epl259x的驅動可以用於
epl2590
MN66213
MN26233TKDN - id = 0x91
MN25713EKDN - id = 0x81
8975 // 4個手勢方向 - 4顆sensor排列
2219 // 4個手勢方向
als 室內光照下應該爲700左右
ps 底噪值應該爲700左右 - *#*#3646633#*#* *#*#889988#*#* -> Hardware Testing ->Sensor ->Light/Proximity Sensor ->Ps Calibration ->Ps Calibration -> Calibration
閾值如果是(500,800)，底噪700
靠近1500
遠離1200
epl_sensor.ps.integration_time = EPL_PS_INTT_144; // 272 - qk
dynk_low_offset = 500; // 100 - qk
dynk_high_offset = 800; // 300 - qk
一、新增驅動方法一_適用androidO（示例: msensor mmc5603x）
1.添加kernel-4.4\drivers\misc\mediatek\sensors-1.0\magnetometer\mmc5603x文件夾(mmc5603x.c、mmc5603x.h、Kconfig、Makefile四個文件)
st480.c
st480.h
Kconfig 建宏--MTK_MMC5603X
Makefile
2.kernel-4.4\drivers\misc\mediatek\sensors-1.0\magnetometer\Kconfig 添加:
+ source "drivers/misc/mediatek/sensors-1.0/magnetometer/mmc5603x/Kconfig"
3.kernel-4.4\drivers\misc\mediatek\sensors-1.0\magnetometer\Makefile 添加:
+ obj-$(CONFIG_MTK_MMC5603X) += mmc5603x/
4.kernel-4.4\arch\arm\configs\k39tv1_bsp_1g_debug_defconfig、k39tv1_bsp_1g_defconfig 修改
+ CONFIG_CUSTOM_KERNEL_MAGNETOMETER=y
+ CONFIG_MTK_MMC5603X=y
5.添加vendor\microhand\msensor\mmc5603x_32bit文件夾(libmemsicd5603x.so一個文件，供應商提供)
6.device\mediateksample\k39tv1_bsp_1g\device.mk 添加，將算法庫拷貝到指定目錄
+ #add by msensor mmc5603x
+ PRODUCT_COPY_FILES += vendor/microhand/msensor/mmc5603x_32bit/libmemsicd5603x.so:vendor/lib/libmemsicd5603x.so
7.device\mediateksample\k39tv1_bsp_1g\ProjectConfig.mk
+ CUSTOM_KERNEL_MAGNETOMETER=yes
二、新增驅動方法二_適用androidM/N（示例: msensor st480）
1.添加kernel-3.18\drivers\misc\mediatek\magnetometer\st480文件夾(包含st480.c、st480.h、Kconfig、Makefile四個文件)
st480.c
st480.h
Kconfig 建宏--MTK_ST480
Makefile
2.kernel-3.18\drivers\misc\mediatek\magnetometer\Kconfig 添加:
+ source "drivers/misc/mediatek/magnetometer/st480/Kconfig"
3.kernel-3.18\drivers\misc\mediatek\magnetometer\Makefile 添加:
+ obj-$(CONFIG_MTK_ST480) += st480/
4.kernel-3.18\arch\arm\boot\dts\len6737m_35_m0.dts 添加:
注：這一段沒有的話（或名字不對應），會導致開機重啓
cust_mag@0 {
compatible = "mediatek,st480";
i2c_num = <2>; // i2c控制器2(即i2c總線2)，sensor都接在控制器2上--即i2c總線2
i2c_addr = <0x0C 0 0 0>; // dws也寫了一個i2c地址，到底用哪個看驅動，通常寫在dws
direction = <1>; // 方向 –> 唯一用到的
power_id = <0xffff>;
power_vol = <0>;
is_batch_supported = <0>;
};
4.1 修改dws: i2c總線數與i2c地址，驅動中會用到
I2C:
MSENSOR I2C_CHANNEL_2 0x30
5.kernel-3.18\arch\arm\configs\len6737m_35_m0_debug_defconfig、len6737m_35_m0_defconfig 修改
- #CONFIG_CUSTOM_KERNEL_MAGNETOMETER=y
+ CONFIG_CUSTOM_KERNEL_MAGNETOMETER=y
+ CONFIG_MTK_ST480=y
6.添加vendor\lentek\libs\mt6737m\st480文件夾(包含st480、Android.mk、README、NOTICE)
st480 是一個可執行文件---init.xxx.rc中運行的daemon進程
Android.mk 是幹嘛的?
README 解釋信息
NOTICE 解釋信息
7.device\lentek\len6737m_35_m0\ProjectConfig.mk 修改：
- CUSTOM_KERNEL_MAGNETOMETER = no
+ CUSTOM_KERNEL_MAGNETOMETER = yes
8.device\mediatek\mt6735\init.mt6735.rc 添加：
service st480 /system/bin/st480 // 這是一個服務，服務的路徑
disabled
user system
group system
class main // 歸屬於main這個service，main啓動時啓動st480
9.device\lentek\len6737m_35_m0\factory_init.project.rc 添加：
service st480 /system/bin/st480 // 這是一個服務，服務的路徑--應該是工廠模式用到的
disabled
user system
group system
10.device\mediatek\common\sepolicy\file_contexts 添加：
+ /system/bin/st480 u:object_r:st480_exec:s0 // 當我們添加跑一個服務的時候就需要對其添加(開放)權限?哪些進程可以訪問它
11.添加device\mediatek\common\sepolicy\st480.te文件
12.device\mediatek\mt6735\device.mk 添加：
+ PRODUCT_PACKAGES += st480 // 複製st480，從…到/system/bin/
三、查看log：
1.查看上報數據
cat /proc/kmsg | grep "***"
2.查看開機串口log
從串口測試點(TXD)接線出來，用usb轉串口線，配合xshell抓串口log（波特率:912600）
3.查看sensor型號：
eng 版可以通過命令查看： cat /sys/bus/platform/drivers/gsensor/chipinfo
user版可以通過命令查看： dmesg | grep "gsensor" -i // 按power鍵滅屏or亮屏時，會打開or關閉sensor，會有內核緩衝器會有log打出
[ 1099.329303] (0)[934:android.ui]qma6981_enable_nodata 1964 : Gsensor not in suspend gsensor_SetPowerMode!, enable_status = 1
[ 1102.168146] (0)[946:PowerManagerSer]qma6981_enable_nodata 1964 : Gsensor not in suspend gsensor_SetPowerMode!, enable_status = 0
user版可以通過命令查看： dmesg | grep "als" -i
user版可以通過命令查看： dmesg | grep "msensor" -i
user版可以通過命令查看： dmesg | grep "gyro" -i
四、根據input子系統的調試方法：
getevent -i 查看所有的input設備
getevent -t /dev/input/event4 獲取gsensor往上層上報的包(封裝過，加入time等信息,以16進制方式打印)
1. ps
靠近:
[ 2208.288534] 0002 0002 00000001
[ 2208.288534] 0002 0001 00000003
[ 2208.288534] 0000 0000 00000000
遠離:
[ 2212.838044] 0002 0002 00000002
[ 2212.838044] 0002 0001 00000003
[ 2212.838044] 0000 0000 00000000
2. cat /proc/kmsg | grep "liuzhigou"
<4>[ 564.973691]<0> (0)[2935:kworker/0:3]liuzhigou epl_sensor_read_ps_status gRawData.raw_bytes[0] = 0xa
<4>[ 564.973725]<0> (0)[2935:kworker/0:3]liuzhigou epl_sensor_read_ps_status epl_sensor.ps.compare_low = 0x8
<4>[ 565.168562]<0> (0)[2935:kworker/0:3]liuzhigou epl_sensor_read_ps_status gRawData.raw_bytes[0] = 0xa
<4>[ 565.168588]<0> (0)[2935:kworker/0:3]liuzhigou epl_sensor_read_ps_status epl_sensor.ps.compare_low = 0x8
<4>[ 565.368485]<0> (0)[2935:kworker/0:3]liuzhigou epl_sensor_read_ps_status gRawData.raw_bytes[0] = 0xa
<4>[ 565.368527]<0> (0)[2935:kworker/0:3]liuzhigou epl_sensor_read_ps_status epl_sensor.ps.compare_low = 0x8
<4>[ 565.568808]<0> (0)[2935:kworker/0:3]liuzhigou epl_sensor_read_ps_status gRawData.raw_bytes[0] = 0xa
<4>[ 565.568851]<0> (0)[2935:kworker/0:3]liuzhigou epl_sensor_read_ps_status epl_sensor.ps.compare_low = 0x8
<4>[ 565.599273]<0> (0)[2935:kworker/0:3]liuzhigou epl_sensor_read_ps_status gRawData.raw_bytes[0] = 0x17
<4>[ 565.599314]<0> (0)[2935:kworker/0:3]liuzhigou epl_sensor_read_ps_status epl_sensor.ps.compare_low = 0x0
<4>[ 565.599982]<0> (0)[2935:kworker/0:3]liuzhigou [epl_sensor_report_ps_status]: epl_sensor.ps.data.data=18642, ps_status=0 // 靠近
<4>[ 565.630511]<0> (0)[2935:kworker/0:3]liuzhigou epl_sensor_read_ps_status gRawData.raw_bytes[0] = 0xf
<4>[ 565.630547]<0> (0)[2935:kworker/0:3]liuzhigou epl_sensor_read_ps_status epl_sensor.ps.compare_low = 0x8
<4>[ 565.631129]<0> (0)[2935:kworker/0:3]liuzhigou [epl_sensor_report_ps_status]: epl_sensor.ps.data.data=17031, ps_status=1 // 遠離
<4>[ 565.735292]<0> (0)[2935:kworker/0:3]liuzhigou epl_sensor_read_ps_status gRawData.raw_bytes[0] = 0x17
<4>[ 565.735316]<0> (0)[2935:kworker/0:3]liuzhigou epl_sensor_read_ps_status epl_sensor.ps.compare_low = 0x0
<4>[ 565.735765]<0> (0)[2935:kworker/0:3]liuzhigou [epl_sensor_report_ps_status]: epl_sensor.ps.data.data=17468, ps_status=0 // 靠近
<4>[ 565.757034]<0> (0)[2935:kworker/0:3]liuzhigou epl_sensor_read_ps_status gRawData.raw_bytes[0] = 0xf
<4>[ 565.757054]<0> (0)[2935:kworker/0:3]liuzhigou epl_sensor_read_ps_status epl_sensor.ps.compare_low = 0x8
<4>[ 565.757495]<0> (0)[2935:kworker/0:3]liuzhigou [epl_sensor_report_ps_status]: epl_sensor.ps.data.data=16792, ps_status=1 // 遠離
五、跟讀代碼可知：以gsensor(mc3xxx_auto)爲例
通過sys文件系統接口調試
1.架構實現 - 兩個路徑的節點是一樣的，cat出來也是相同的，hal層走class
/sys/class/misc/m_acc_misc/*** 有若干屬性，可以讀寫操作
cat /sys/.../accenablenodata -- 不支持 echo 0/1 > 無作用
cat /sys/.../accactive -- 1(使能) echo 0 > /sys/.../accactive -- disable
cat /sys/.../accdelay(不常用)
cat /sys/.../accbatch(不常用)
cat /sys/.../accflush(不常用)
cat /sys/.../accdevnum -- 4(/dev/input/event4)
2.驅動實現
/sys/bus/platform/drivers/gsensor/*** 有若干屬性，可以讀寫操作
* cat /sys/.../chipinfo -- MC3XXX Chip -- 直接打印MC3XXX Chip
* cat /sys/.../sensordata -- 1758 0695 1b88 -- 讀地址0x00
cat /sys/.../cali -- 三組校準數據 -- 第二組爲校準係數，上層未下發就爲0
cat /sys/.../selftest -- 空(未設置)
cat /sys/.../firlen -- 0 -- 濾波長度 - 從dts獲得 - 全部爲0
cat /sys/.../trace -- 0x0000 -- mc3xxx_i2c_probe()把它設置爲0
cat /sys/.../status -- CUST: 2 7 <-1 0> -- i2c_num direction <power_id power_vol> - 從dts獲取
cat /sys/.../power -- 亮屏0x0041，滅屏0x0043 -- 讀地址0x07
cat /sys/.../version -- 2.1.6 -- 打印驅動的宏
* cat /sys/.../chipid -- 7C-5F-5E-46 -- 讀地址0x3C
cat /sys/.../virtualz -- 不支持
* cat /sys/.../regmap -- 打印所有寄存器的值
* cat /sys/.../orientation -- 7 -- 從dts獲取 echo 7 > /sys/.../orientation
cat /sys/.../accuracy -- 2(精度 - 宏設置)
cat /sys/.../selfcheck -- 亂碼
cat /sys/.../validate -- 0(驗證成功) -- 從0x3b讀出pcode - 匹配mc3***系列芯片 - 驗證成功返回0
cat /sys/.../pdoc -- 0(不支持 - 宏未開)
六、sensor兼容：以gsensor爲例：
Mtk的架構已經做了兼容，最多隻能兼容5個（gsensor_init_list[5]）(tpd_driver_list[20])
android5.1:
七、ps的閾值如何設定
1. androidL/M/N:
kernel-3.10/drivers/misc/mediatek/alsps/epl259x/epl259x.c
dynk_low_offset = 2000; //500; //100 - qk
dynk_high_offset = 2300; //800; //300 - qk
將(500,800)改爲(2000,2300)，距離約降低三分一，寫死在驅動不用dts
八、sensor數據上報有三種接口
1. 輪詢上報 --最終使用
2. sys文件系統 -- 調試使用
3. ioctl接口 -- ATA (工廠模式: 同時按住音量減和電源鍵開機)
mtk原生：
關閉輪詢 - 無功能
關閉ioctl - 工廠模式無數據(音量減與電源鍵同時按住開機)
關閉sysfs - 有功能
bose修改hal層框架後: - 由一個進程主動讀取
關閉輪詢 - 有功能
關閉ioctl - 工廠模式無數據(音量減與電源鍵同時按住開機)
關閉sysfs - 無功能
九、調試查看log
1. hal層enable與disable時候會打印：[logcat | grep "..."]
vendor/mediatek/proprietary/hardware/sensor/nusensors.cpp
int sensors_poll_context_t::activate(int handle, int enabled)
{
ALOGD( "activate handle =%d, enable = %d",handle, enabled );
sensor編號：(kernel/.../hwmsensor.h中定義減1)
accelerometer 0
magnetometer 1
orientation 2
gyroscope 3
ambient light sensor 4
proximity sensor 7
十、*#0*#測試模式調用接口:
codec_37_n_base\update\alps\kstpackages\apps\KSTFactoryTest\src\com\kingsentime\factorytest\TestSensor.java
accelerometerSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
lightSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_LIGHT);
distanceSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_PROXIMITY);
十一、msensor異常調試步驟:
1. 安裝打開APK : zhinanzhen.apk。劃八校準後查看是否正常: 不管手機如何轉動指針始終指北
==>指南針轉動，但並不始終指北 -->修改DTS中msensor的方向
==>指南針不動 -->安裝sensorlist.apk 查看指南針msensor是否有數據變化
==>無數據變化 -->查看開機log,查看是否有I2C通訊報錯，
==> 如i2c報錯 -->用萬用表檢查: 芯片供電電壓、連線(遇到過貼片沒貼好，重貼就ok)和i2c地址
2. 如果msensor方向調整對了，當指南針方向還是不對
==>檢查gsensor是否正常工作，因爲指南針會用到gsensor的數據
3. adb shell
ps 查看指南針的daemon是否正常運行，如未正常運行，可adb push ;cd 到所在目錄; daemon名; 手動把daemon跑起來
注：
1.eng版纔有運行權限
2.cd /system/bin/; /daemon名; 運行， kill daemon; 停止
3.alps/out/target/product/magc6737m_65_n/system/bin/
4. 如指南針方向大致正確，但上下抖動(正負3度以外)，檢查msensor擺件位置，
由於msensor檢測磁場，旁邊不能有：
帶磁元件(如馬達、camera)【遇到過帶磁螺絲導致方向不準，換螺絲】
大電流(cpu/flash/wifi芯片/百毫安的供電電流、需距離5mm以上)【遇到過兩次有大電流，改版】
如果有，需要硬件改版，將msensor挪到旁邊去
十二、gsensor、msensor、gyroscope的方向調試
1. 由於這些sensor都是三軸sensor，故均有0~7 八個方向。通常寫在dts，少數不規範的寫死在驅動
2. 先找到小原點即芯片原點座標(在芯片絲印上有)
gsensor(3433/6981/bmc156)
y
__|__
| o|
| |-->x
|__ __|
gyroscope(bmg160)
x
__|__
| o|
y<--| |
|__ __|
然後根據sensor的擺件位置，計算出sensor的方向，先把手機平方在桌面
2.1 如sensor貼在top層
y軸指向聽筒位置(小圓點在右上角)，方向爲0
y軸指向左側位置(小圓點在左上角)，方向爲1
y軸指向home位置(小圓點在左下角)，方向爲2
y軸指向右側位置(小圓點在右下角)，方向爲3
(逆時針旋轉90度，方向+1)
2.2 如sensor貼在bottom層，相應的方向:4/5/6/7
3. 由於芯片常在屏蔽罩裏面，不便查看，可以由原理圖與layout 查看其小原點位置: pin腳1的位置
4. 何種現象顯示方向正確:
gsensor : 手機界面會翻轉
msensor : 安裝打開指南針apk，劃八校準後，不管手機如何轉動指針始終指北
gyroscope: 安裝需要陀螺儀的遊戲apk(如打殭屍)，運行遊戲看是否打得準
5. 何種現象顯示方向正確: 用sensorlist查看
5.1 gsensor
手機平放，z軸應爲9.8，xy爲0
手機豎立，y軸應爲9.8，zx爲0
手機側立，x軸應爲9.8，yz爲0 - 正面朝左
5.2 msensor，先用正常手機如iphone找到北邊
x軸指北時，x軸數據達到最大；x軸反方向指北時，x軸數據達到負的最大
y軸指北時，y軸數據達到最大；y軸反方向指北時，y軸數據達到負的最大
z軸指北時，z軸數據達到最大；z軸反方向指北時，z軸數據達到負的最大
5.3 gyroscope，假設手機有長寬高三軸
沿着手機寬軸擺動手機，x軸數據變化比另兩軸大(先正後負)
沿着手機長軸擺動手機，y軸數據變化比另兩軸大
沿着手機高軸擺動手機，z軸數據變化比另兩軸大
6. 還可以通過sensorlist看到的xyz軸數據計算，與原本的方向計算出正確的方向
value swap X with Y reverse sign X reverse sign Y reverse sign Z
0 0 0 0 0
1 0 1 0 1
2 0 1 1 0
3 0 0 1 1
4 1 1 0 0
5 1 0 1 0
6 1 0 0 1
7 1 1 1 1
sensor調試案例：
案例一 : 兼容gsensor（mxc400x與mxc6225）
現象 :
平臺 : androidL,MTK6580
步驟 : 1.
2. !!!試驗這樣是不是i2c地址相同的就可以再次i2c_probe
epl_sensor_i2c_probe()
epl_sensor_i2c_client = client;
exit:
epl_sensor_i2c_client = NULL;
alsps_init_flag = -1;
3.
總結 :
案例二 : gsensor（qma6981）由mtk老架構改mtk新架構
現象 :
平臺 : androidL,MTK6580
步驟 : 1. 思路：老的架構在模塊入口platform_driver_register()註冊一個平臺設備，probe中註冊i2c設備
新的架構在模塊入口acc_driver_add()將結構題註冊到list中，local_init中註冊i2c設備
2.#include <accel.h>
static int __init qma6981_init(void)
{
- platform_driver_register(&qma6981_gsensor_driver)
+ acc_driver_add(&qma6981_init_info);
return 0;
}
3. static struct sensor_init_info qma6981_init_info = {
.name = QMA6981_ACC_DEV_NAME,
.init = qma6981_local_init,
.uninit = qma6981_local_uninit,
};
4.static int qma6981_local_init(void)
{
i2c_add_driver(&qma6981_i2c_driver)
if(-1 == qma6981_init_flag)
return -1;
return 0;
}
5.static int qma6981_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
- if((err = qma6981_create_attr(&qma6981_gsensor_driver.driver)))
+ if((err = qma6981_create_attr(&(qma6981_init_info.platform_diver_addr->driver))))
exit:
+ qma6981_init_flag = -1;
return err;
}
總結 :
案例三 : 計步器的實現 - gsensor硬件中斷
現象 :
平臺 : androidL,MTK6737
步驟 : 1.
2.
3.
總結 :
案例四 : 調試新msensor(mmc3630x)，bin文件沒有拷貝到out目錄 - 修改device.mk
現象 : msensor無功能
平臺 : androidN,MTK6737
排查過程: 1.在alps\vendor\magcomm\libs\mt6737m\目錄創建文件夾: memsicd3630x ,內部有bin文件 : memsicd3630x
修改alps\device\mediatek\mt6735\device.mk添加:
PRODUCT_PACKAGES += memsicd3416x
+ PRODUCT_PACKAGES += memsicd3630x
2.out目錄沒有生成對應的bin文件：memsicd3630x
android009@mht-09:~/liuzhigou/code2_37_m_base_v663_xiaoxing_k29d1_user$ find alps/out/ -name memsicd3*
alps/out/target/product/magc6737m_65_c_m0/system/bin/memsicd3416x
3.修改alps\device\mediatek\mt6735\device.mk添加: (注意要精確到具體文件,而不是文件夾)
+ PRODUCT_COPY_FILES += vendor/magcomm/libs/mt6737m/memsicd3630x/memsicd3630x:system/bin/memsicd3630x
4.out目錄成功生成對應的bin文件：memsicd3630x
android009@mht-09:~/liuzhigou/code2_37_m_base_v663_xiaoxing_k29d1_user$ find alps/out/ -name memsicd3*
alps/out/target/product/magc6737m_65_c_m0/system/bin/memsicd3416x
alps/out/target/product/magc6737m_65_c_m0/system/bin/memsicd3630x // 我們要的bin文件
處理方案: 修改device.mk
總結 : 上層的問題，及時請教上層的同事
案例三 : gsensor（qma6981） I2C不通 - 貼片沒有貼好
現象 : I2C不通
平臺 : androidN,MTK6737
步驟 : 1. gsensor無功能，打log，在串口log中發現
[ 13.465281] .(3)[1:swapper/0][name:qma6981&][QMA-Gsensor] I2C_TxData 271 : I2C_TxData delay!
[ 13.476575] .(3)[1:swapper/0][name:i2c&]ERROR,510: id=2,addr: 12, transfer error
[ 13.477594] .(3)[1:swapper/0][name:i2c&]ERROR,516: I2C_ACKERR
2. 分析：由於sensor電源爲常供，無需上電，i2c不通的可能：
（1）i2c地址不對
（2）硬件有問題
3. 詢問FAE，確認i2c地址正確，排查硬件問題：將芯片取下，外接小板（小板上有芯片）
結果芯片工作正常
處理方案: -->把芯片重新貼好
總結 : 只有camera在i2c通訊之前要上電，其他都可以直接通訊，i2c不通只有兩種可能:
（1）i2c地址不對
（2）硬件有問題
案例四 :
現象 :
平臺 : androidN,MTK6737
步驟 : 1.
2.
案例五 : gsensor兼容(3433 & 6981)導致功耗大(70ma)
現象 :
平臺 : androidN,MTK6737
步驟 : 1. 休眠時候打log: adb shell dmesg > e:gsensor_3433_6981.log
log顯示由於設備(2-004c - mc3433)休眠失敗，導致系統休眠失敗，重新喚醒，
系統一直處於: 休眠->休眠失敗->喚醒 ->休眠的循環中
[ 207.629520] (1)[1066:system_server]qma6981_suspend 2894 : liuzhigou 20171018 qma6981_suspend start
[ 207.635164] (1)[1066:system_server]qma6981_suspend 2914 : liuzhigou 20171018 qma6981_suspend end
[ 207.635254] (1)[1066:system_server]liuzhigou 20171018 mc3xxx_suspend start
[ 207.635291] (1)[1066:system_server]dpm_run_callback(): i2c_device_pm_suspend+0x0/0x38 returns -22
[ 207.635324] (1)[1066:system_server]PM: Device 2-004c failed to suspend: error -22
[ 207.635352] (1)[1066:system_server][name:suspend&]PM: Some devices failed to suspend, or early wake event detected
2. 在mc3433的休眠函數中，添加打印log:
static int mc3xxx_suspend(struct i2c_client *client, pm_message_t msg)
{
struct mc3xxx_i2c_data *obj = i2c_get_clientdata(client);
int err = 0;
if(msg.event == PM_EVENT_SUSPEND) {
if(obj == NULL) {
+ GSE_ERR("liuzhigou 20171025 %s obj == NULL\n",__FUNCTION__);
return -EINVAL;
}
[ 116.917907] (0)[1150:system_server]liuzhigou 20171018 mc3xxx_suspend start
[ 116.917926] (0)[1150:system_server]liuzhigou 20171018 mc3xxx_suspend msg.event == PM_EVENT_SUSPEND
[ 116.917943] (0)[1150:system_server]liuzhigou 20171018 mc3xxx_suspend obj == NULL
[ 116.917974] (0)[1150:system_server]dpm_run_callback(): i2c_device_pm_suspend+0x0/0x38 returns -22
[ 116.917996] (0)[1150:system_server]PM: Device 2-004c failed to suspend: error -22
[ 116.918016] (0)[1150:system_server]PM: Some devices failed to suspend, or early wake event detected
根據log，obj爲空指針，出錯判斷後返回錯誤值
3. 根據標誌位添加出錯判斷，如果沒加載3433就直接return 0(成功)，終止3433的休眠函數
static int mc3xxx_suspend(struct i2c_client *client, pm_message_t msg)
{
struct mc3xxx_i2c_data *obj = i2c_get_clientdata(client);
int err = 0;
if(msg.event == PM_EVENT_SUSPEND) {
if(obj == NULL) {
+ if (MC3XXX_INIT_FAIL == s_nInitFlag){
+ GSE_ERR("liuzhigou 20171025 %s obj == NULL MC3XXX_INIT_FAIL == s_nInitFlag \n",__FUNCTION__);
+ return 0;
+ }
+ else{
+ GSE_ERR("liuzhigou 20171025 %s obj == NULL MC3XXX_INIT_FAIL != s_nInitFlag \n",__FUNCTION__);
return -EINVAL;
}
}
總結 : 此log爲正常狀態: 0x4000爲pmu中斷
[ 147.732936] -(0)[1066:system_server][name:mt_spm_internal&][SPM] wake up byEINT, timer_out = 18724959, r13 = 0x10001000, debug_flag = 0x9f
[ 147.732936] -(0)[1066:system_server][name:mt_spm_internal&][SPM] r12 = 0x20, raw_sta = 0x20, idle_sta = 0x9fa, event_reg = 0x90100000, isr = 0x0
[ 147.732936] -(0)[1066:system_server][name:mt_spm_sleep&][SPM] suspend dormant state = 0, md32_flag = 0x0, md32_flag2 = 0
[ 147.732936] -(0)[1066:system_server][name:mt_spm_sleep&][SPM] log_wakesta_index = 5
[ 147.732936] -(0)[1066:system_server][name:irq_mt_eic&]EINT_STA:
[ 147.732936] -(0)[1066:system_server][name:irq_mt_eic&]EINT Module - index:192,EINT_STA = 0x4000
[ 147.732936] -(0)[1066:system_server][name:irq_mt_eic&]EINT 206 is pending
[ 147.732936] -(0)[1066:system_server][name:irq_mt_eic&]
[ 147.732988] -(0)[1066:system_server][name:ccci&][ccci1/mcd]Resume cldma pdn register ...11
[ 147.733070] -(0)[1066:system_server][name:irq_mt_eic&]EINT Module - expires:4294952066, jiffies:4294952065, deb_in_jiffies:1,
[ 147.733091] -(0)[1066:system_server][name:irq_mt_eic&]deb:1000, in mt_eint_set_timer_event
[ 147.733270] (0)[1066:system_server][name:cpu&]Enabling non-boot CPUs ...
[ 147.733571] -(1)[0:swapper/1]CPU1: Booted secondary processor
案例六 : ATA測試中gsensor(qma6981)無數據 - 添加init() - 原因：i2c_probe的時候沒有跑init(),而正常開機在別處有init()
現象 : 正常開機有數據，ATA無數據
平臺 : androidM,MTK6580
步驟 : 1. 由於ATA 是通過ioctl接口獲取數據，在ioctl函數中添加log，顯示讀到的數據爲0
2. 在qma6981_unlocked_ioctl()中獲取數據之前進行初始化
switch (cmd) {
case GSENSOR_IOCTL_READ_SENSORDATA:
+ qma6981_initialize(client);
==> ok
案例七 : CTS測試報錯- 磁力傳感器 - 板子上內貼 - 從配置中移除
此法不通！！！案例八 : 打開自動背光，通話貼臉滅屏後，移開無法亮屏 - 沒找到死鎖的地方，直接更換一份版本較新的驅動
平臺 : androidN,MTK6737
步驟 : 1. 對比其他項目667，無此現象，查BOM
663 MN26233TKDN（問題項目）
667 MN25713EKDN
2. 進入"*#0*#"測試模式,交替打開als與ps，出現概率性的als無功能(數值不動)
分析懷疑是als與ps enable或disable的時候出問題
3. FAE現場支持，提供了一份最新的驅動，問題不再出現
FAE說舊驅動中有死鎖，但是找不到
4. 嘗試註釋掉alps\kernel-3.18\drivers\misc\mediatek\alsps\epl259x\epl259x.c
static int als_enable_nodata(int en)
{
if(enable_als != en)
{
+ //epl_sensor_update_mode(obj->client);
}
}
==>功能正常
案例九 : als概率性無功能 - 有死鎖 - 沒找到死鎖的地方，直接更換一份版本較新的驅動
案例十 : 強光下，自動背光的亮度變化不明顯，弱光下，自動背光的亮度是正常的
平臺 : androidN,MTK6737
步驟 : 1. 修改als積分時間: alps/kernel-3.18/drivers/misc/mediatek/alsps/epl259x/epl259x.c
- epl_sensor.als.integration_time = EPL_ALS_INTT_1024;
+ epl_sensor.als.integration_time = EPL_ALS_INTT_64;
案例十一 : 打開自動背光，遮擋光感，屏幕亮度無變化 - tp油墨遮擋
平臺 : androidN,MTK6737
步驟 : 1. 打開"*#0*#"測試模式，查看光感上報值，值偏小
對比亮度能夠自動調節的其他項目
v618_p300 : 1969 lux
v663_k38 : 328 lux(問題機)
懷疑是結構遮擋，導致進光量偏少
2. 結構同事分析：是tp開孔處油墨有問題，刮開tp油墨亮度2900 lux
案例十二 : gsensor(mxc4005)ATA中z軸數據爲0 - 需要factory_init.rc啓動一個daemon
平臺 : androidM,MTK6580
步驟 : 1. 正常開機三軸均有數據,ATA(音量減+電源鍵開機)中z軸數據爲0
2. 新建文件夾alps/vendor/magcomm/libs/mt6580/memsicp_f_32/
裏面新增4個文件: memsicp_f_32、Android.mk、NOTICE、README
其中memsicp_f_32需要供應商提供
3. alps/device/mediatek/mt6580/device.mk
+ PRODUCT_PACKAGES += memsicp_f_32
4. alps/device/mediatek/mt6580/factory_init.rc
+ service memsicp_f_32 /system/bin/memsicp_f_32
+ user system
+ group system
+ class main
總結 :
案例十三 : android8.1 sensor無法獲取dts數據 -- 寫死在驅動
現象 : 獲取不到dts數據
平臺 : androidO,MTK6737&MTK6739
步驟 : 1. 由於獲取不到dts、dws的數據，無法設置i2c地址、方向，可以寫死在驅動
alps\kernel-4.4\drivers\misc\mediatek\sensors-1.0\accelerometer\mpu6050g\mpu6050.c
mpu6050_i2c_probe(struct i2c_client *client)
+ client->addr = 0x69;
+ obj->hw.direction = 0;
2. 由於獲取不到dts的數據，無法設置中斷腳，可以寫死在驅動:
alps\kernel-3.18\drivers\misc\mediatek\sensors-1.0\alsps\epl259x\epl259x.c
obj->irq = irq_of_parse_and_map(obj->irq_node, 0);
// 通過打印log可以看出GPIO65對應irq 爲353
// 通過打印log可以看出GPIO3 對應irq 爲291
// 可知GPIO口的中斷號是線性的
printk("obj->irq = %d\n", obj->irq);
+ obj->irq = 291; // GPIO3 - liuzhigou add for v662
request_irq(obj->irq, epl_sensor_eint_func, IRQF_TRIGGER_NONE, "ALS-eint", NULL)
3. 後面有空再好好分析一下如何才能獲取到dts數據
總結 :
案例十四 : android8.1 msensor(akm09918)無法打開算法庫(libakl.so)
現象 : 指南針不轉，打開sensorlist，指南針數據始終爲0
平臺 : androidO,MTK6739
步驟 : 1. 打印kernel log(導出mtklog或cat /dev/kmsg | grep "liuzhigou")看驅動是否有上報數據
kernel-4.4\drivers\misc\mediatek\sensors-1.0\magnetometer\mag.c
int mag_data_report(struct mag_data *data)
{
struct sensor_event event;
int err = 0;
+ printk("liuzhigou update!valus: %d, %d, %d, %d\n" , data->x, data->y, data->z, data->status);
log:
-- 當打開sensorlist時，地磁數據上報正常
Line 1233: <4>[ 113.500580] (3)[67:kworker/3:1]liuzhigou update!valus: 1500, -30400, 6000, 68
Line 1241: <4>[ 113.699990] (3)[67:kworker/3:1]liuzhigou update!valus: 2400, -30000, 7100, 4
Line 1246: <4>[ 113.902548] (3)[67:kworker/3:1]liuzhigou update!valus: 300, -28000, 6000, 116
Line 1248: <4>[ 114.104571] (3)[67:kworker/3:1]liuzhigou update!valus: 1600, -29500, 8100, 100
Line 1249: <4>[ 114.300017] (3)[67:kworker/3:1]liuzhigou update!valus: 200, -28600, 5400, 4
Line 1257: <4>[ 114.500118] (3)[67:kworker/3:1]liuzhigou update!valus: 800, -30600, 7000, 100
Line 1260: <4>[ 114.700351] (3)[67:kworker/3:1]liuzhigou update!valus: 1200, -29800, 4500, 36
Line 1270: <4>[ 114.903466] (3)[67:kworker/3:1]liuzhigou update!valus: 1200, -29100, 6200, 116
Line 1272: <4>[ 115.100006] (3)[67:kworker/3:1]liuzhigou update!valus: 1900, -29100, 6200, 36
Line 1278: <4>[ 115.303492] (3)[67:kworker/3:1]liuzhigou update!valus: 1500, -29200, 4400, 4
Line 1284: <4>[ 115.500014] (3)[67:kworker/3:1]liuzhigou update!valus: 400, -29300, 5200, 68
Line 1298: <4>[ 115.700524] (3)[67:kworker/3:1]liuzhigou update!valus: 600, -29400, 4600, 52
Line 1317: <4>[ 115.899930] (3)[67:kworker/3:1]liuzhigou update!valus: 800, -28700, 5100, 52
2. 查看算法庫加載: vendor\mediatek\proprietary\hardware\sensor\sensors-1.0\VendorInterface.cpp
VendorInterface::VendorInterface() {
...
strlcpy(buf, "lib", sizeof(buf));
strlcat(buf, libinfo.libname, sizeof(buf));
strlcat(buf, ".so", sizeof(buf));
lib_handle = dlopen(buf, RTLD_NOW);
+ ALOGE("VendorInterface() buf = %s\n", buf);
if (!lib_handle) {
ALOGE("get lib_interface fail dlopen operation.\n"); // 報此錯誤
lib_handle = NULL;
return;
}
供應商提供的算法庫打開失敗 -> 找供應商重新提供
3. 如果算法庫加載沒報錯，可以查看校準前後數據
int VendorInterface::magCalibration(struct sensorData *inputData,struct sensorData *outputData)
{
struct magCaliDataInPut magInputData;
struct magCaliDataOutPut magOutputData;
int ret = 0;
memset(&magInputData, 0, sizeof(struct magCaliDataInPut));
memset(&magOutputData, 0, sizeof(struct magCaliDataOutPut));
if (!lib_interface)
return -1;
if (!lib_interface->doCaliApi)
return -1;
magInputData.timeStamp = inputData->timeStamp;
magInputData.x = inputData->data[0];
magInputData.y = inputData->data[1];
magInputData.z = inputData->data[2];
magInputData.status = inputData->status;
+ ALOGE("magCalibration() before Calibration : magInputData.x = %f\n", magInputData.x);
+ ALOGE("magCalibration() before Calibration : magInputData.y = %f\n", magInputData.y);
+ ALOGE("magCalibration() before Calibration : magInputData.z = %f\n", magInputData.z);
ret = lib_interface->doCaliApi(&magInputData, &magOutputData);
+ ALOGE("magCalibration() after Calibration : magInputData.x = %f\n", magInputData.x);
+ ALOGE("magCalibration() after Calibration : magInputData.y = %f\n", magInputData.y);
+ ALOGE("magCalibration() after Calibration : magInputData.z = %f\n", magInputData.z);
outputData->timeStamp = magOutputData.timeStamp;
outputData->data[0] = magOutputData.x;
outputData->data[1] = magOutputData.y;
outputData->data[2] = magOutputData.z;
outputData->data[3] = magOutputData.x_bias;
outputData->data[4] = magOutputData.y_bias;
outputData->data[5] = magOutputData.z_bias;
outputData->status = magOutputData.status;
return ret;
}
總結 : 最後因爲供應商無法提交現場支持，更換物料爲mmc5603x，合入一次成功
案例十五 : android8.1 msensor(mmc5603x)算法庫(libmemsicd5603x.so)有問題
現象 : 指南針不轉，打開sensorlist，指南針數據始終爲0
平臺 : androidO,MTK6580
步驟 : 1. 打印kernel log(導出mtklog或cat /dev/kmsg | grep "liuzhigou")看驅動是否有上報數據
kernel-3.18\drivers\misc\mediatek\sensors-1.0\magnetometer\mag.c
int mag_data_report(struct mag_data *data)
{
struct sensor_event event;
int err = 0;
+ printk("liuzhigou update!valus: %d, %d, %d, %d\n" , data->x, data->y, data->z, data->status);
log:
-- 當打開sensorlist時，地磁數據上報正常
4,69949,1451351242,-; (0)[154:kworker/0:1]liuzhigou update!valus: -90, 126, -878, 3
4,69977,1451551292,-; (0)[154:kworker/0:1]liuzhigou update!valus: -88, 129, -879, 3
4,70042,1451751525,-; (0)[154:kworker/0:1]liuzhigou update!valus: -90, 125, -872, 3
4,70052,1451951410,-; (0)[154:kworker/0:1]liuzhigou update!valus: -87, 126, -878, 3
4,70065,1452151250,-; (0)[154:kworker/0:1]liuzhigou update!valus: -90, 120, -859, 3
4,70075,1452351395,-; (0)[154:kworker/0:1]liuzhigou update!valus: -89, 129, -878, 3
4,70083,1452551445,-; (0)[154:kworker/0:1]liuzhigou update!valus: -88, 133, -882, 3
2. 查看算法庫加載: vendor\mediatek\proprietary\hardware\sensor\sensors-1.0\Magnetic.cpp
MagneticSensor::MagneticSensor(){
...
strlcpy(buf, "lib", sizeof(buf));
strlcat(buf, libinfo.libname, sizeof(buf));
strlcat(buf, ".so", sizeof(buf));
+ ALOGE("liuzhigou MagneticSensor() buf = %s\n", buf); // 添加的log
lib_handle = dlopen(buf, RTLD_NOW);
if (!lib_handle) {
ALOGE("dlopen fail\n");
return;
}
+ ALOGE("liuzhigou dlopen ok\n"); // 添加的log
查看log(mtklog中的main_log.boot):
01-01 07:03:28.286359 337 337 E Magnetic: liuzhigou MagneticSensor() buf = libmemsicd5603x.so
01-01 07:03:28.419057 337 337 E Magnetic: liuzhigou dlopen ok
3. 如果算法庫加載沒報錯，可以查看校準前後數據
void MagneticSensor::processEvent(struct sensor_event const *event)
{
float magBias[3] = {0};
struct magCaliDataInPut inputData;
struct magCaliDataOutPut outputData;
static int32_t lastStatus = 0;
memset(&inputData, 0, sizeof(struct magCaliDataInPut));
memset(&outputData, 0, sizeof(struct magCaliDataOutPut));
if (event->flush_action == DATA_ACTION) {
mPendingEvent.version = sizeof(sensors_event_t);
mPendingEvent.sensor = ID_MAGNETIC;
mPendingEvent.type = SENSOR_TYPE_MAGNETIC_FIELD;
mPendingEvent.timestamp = event->time_stamp;
mPendingEvent.magnetic.status = event->status;
mPendingEvent.magnetic.x = (float)event->word[0] / (float)mDataDiv;
mPendingEvent.magnetic.y = (float)event->word[1] / (float)mDataDiv;
mPendingEvent.magnetic.z = (float)event->word[2] / (float)mDataDiv;
inputData.x = mPendingEvent.magnetic.x ;
inputData.y = mPendingEvent.magnetic.y ;
inputData.z = mPendingEvent.magnetic.z ;
+ ALOGE("processEvent() before Calibration : inputData.x = %f\n", inputData.x);
+ ALOGE("processEvent() before Calibration : inputData.y = %f\n", inputData.y);
+ ALOGE("processEvent() before Calibration : inputData.z = %f\n", inputData.z);
inputData.status = mPendingEvent.magnetic.status;
inputData.timeStamp = mPendingEvent.timestamp;
if (lib_interface != NULL) {
lib_interface->doCaliApi(&inputData,&outputData);
}
+ ALOGE("processEvent() after Calibration : outputData.x = %f\n", outputData.x);
+ ALOGE("processEvent() after Calibration : outputData.y = %f\n", outputData.y);
+ ALOGE("processEvent() after Calibration : outputData.z = %f\n", outputData.z);
mPendingEvent.magnetic.x = outputData.x;
mPendingEvent.magnetic.y = outputData.y;
mPendingEvent.magnetic.z = outputData.z;
mPendingEvent.magnetic.status = outputData.status;
magBias[0] = outputData.x_bias;
magBias[1] = outputData.y_bias;
magBias[2] = outputData.z_bias;
if (mPendingEvent.magnetic.status != lastStatus) {
mSensorCali.saveCalibrationFloat(MAG_BIAS_SAVED_DIR, MAG_TAG_BIAS, magBias, 3);
ALOGE("write bias: [%f, %f, %f]\n", magBias[0], magBias[1], magBias[2]);
}
lastStatus = mPendingEvent.magnetic.status;
} else
ALOGE("unknow action\n");
}
查看log(mtklog中的main_log):
Line 9864: 01-01 07:27:42.910853 339 339 E Magnetic: processEvent() before Calibration : inputData.x = -0.437500
Line 9865: 01-01 07:27:42.911000 339 339 E Magnetic: processEvent() before Calibration : inputData.y = -0.211914
Line 9866: 01-01 07:27:42.911080 339 339 E Magnetic: processEvent() before Calibration : inputData.z = -0.598633
Line 9867: 01-01 07:27:42.911156 339 339 E Magnetic: processEvent() after Calibration : outputData.x = 0.000000
Line 9868: 01-01 07:27:42.911228 339 339 E Magnetic: processEvent() after Calibration : outputData.y = 0.000000
Line 9869: 01-01 07:27:42.911300 339 339 E Magnetic: processEvent() after Calibration : outputData.z = 0.000000
Line 9887: 01-01 07:27:43.108972 339 731 E Magnetic: processEvent() before Calibration : inputData.x = -0.444336
Line 9888: 01-01 07:27:43.109108 339 731 E Magnetic: processEvent() before Calibration : inputData.y = -0.207031
Line 9889: 01-01 07:27:43.109195 339 731 E Magnetic: processEvent() before Calibration : inputData.z = -0.601562
Line 9890: 01-01 07:27:43.109374 339 731 E Magnetic: processEvent() after Calibration : outputData.x = 0.000000
Line 9891: 01-01 07:27:43.109454 339 731 E Magnetic: processEvent() after Calibration : outputData.y = 0.000000
Line 9892: 01-01 07:27:43.109532 339 731 E Magnetic: processEvent() after Calibration : outputData.z = 0.000000
由log可知，so校準算法庫有問題
4. 查看是否沒有修改outputData的值
void MagneticSensor::processEvent(struct sensor_event const *event)
{
...
+ ALOGE("processEvent() before Calibration : inputData.x = %f\n", inputData.x);
+ ALOGE("processEvent() before Calibration : inputData.y = %f\n", inputData.y);
+ ALOGE("processEvent() before Calibration : inputData.z = %f\n", inputData.z);
inputData.status = mPendingEvent.magnetic.status;
inputData.timeStamp = mPendingEvent.timestamp;
if (lib_interface != NULL) {
+ outputData.x = (float)1.23；
+ outputData.y = (float)1.23；
+ outputData.z = (float)1.23；
lib_interface->doCaliApi(&inputData,&outputData);
}
+ ALOGE("processEvent() after Calibration : outputData.x = %f\n", outputData.x);
+ ALOGE("processEvent() after Calibration : outputData.y = %f\n", outputData.y);
+ ALOGE("processEvent() after Calibration : outputData.z = %f\n", outputData.z);
...
查看log(mtklog中的main_log):
01-02 23:23:39.754 326 738 E Magnetic: processEvent() before Calibration : inputData.x = 25.878906
01-02 23:23:39.754 326 738 E Magnetic: processEvent() before Calibration : inputData.y = 12.109375
01-02 23:23:39.754 326 738 E Magnetic: processEvent() before Calibration : inputData.z = -40.136719
01-02 23:23:39.755 326 738 E Magnetic: processEvent() after Calibration : outputData.x = 1.230000
01-02 23:23:39.755 326 738 E Magnetic: processEvent() after Calibration : outputData.y = 1.230000
01-02 23:23:39.755 326 738 E Magnetic: processEvent() after Calibration : outputData.z = 1.230000
01-02 23:23:39.954 326 326 E Magnetic: processEvent() before Calibration : inputData.x = 25.683594
01-02 23:23:39.954 326 326 E Magnetic: processEvent() before Calibration : inputData.y = 12.109375
01-02 23:23:39.954 326 326 E Magnetic: processEvent() before Calibration : inputData.z = -39.746094
01-02 23:23:39.955 326 326 E Magnetic: processEvent() after Calibration : outputData.x = 1.230000
01-02 23:23:39.955 326 326 E Magnetic: processEvent() after Calibration : outputData.y = 1.230000
01-02 23:23:39.955 326 326 E Magnetic: processEvent() after Calibration : outputData.z = 1.230000
由log可知，outputData的值根本沒被修改
5.對比mt6737的hal層sensor架構，發現mt6580名爲sensor1.0，實際內容是sensor0.1
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