一、 将从厂商拿到的sensor驱动代码放入以下目录
ADSP.VT.5.4.2/adsp_proc/ssc_drivers/
二、 将驱动配置到编译列表
adsp_proc/ssc/chipset/strait/por.py
24 include_sensor_vendor_libs.extend([25'sns_af6133e',#MAG26'sns_mmc56x3x', #MAG27'sns_icm4x6xx', #ACC28'sns_ltr569',#LIGHT/PROX29'sns_stk3a5x',#LIGHT/PROX30'sns_sx933x' #SAR31])
可通过下面生成的c文件可以确认编译了哪些sensor外设
adsp_proc/ssc/framework/build/sensor_img/qdsp6/strait.adsp.prod/sns_static_drivers.c
/*=========================================================@file sns_static_drivers.cThis file is autogenerated. Do not modify.Copyright (c) 2023 Qualcomm Technologies, Inc.All Rights Reserved.Confidential and Proprietary - Qualcomm Technologies, Inc.2023-05-25 05:26:31.780802 ===========================================================*/#include "sns_rc.h"#include "sns_register.h"#include "sns_types.h"sns_rc sns_register_af6133e(sns_register_cb const *register_api);sns_rc sns_register_aw_sar(sns_register_cb const *register_api);sns_rc sns_register_icm4x6xx(sns_register_cb const *register_api);sns_rc sns_register_icp201xx(sns_register_cb const *register_api);sns_rc sns_register_ltr569(sns_register_cb const *register_api);sns_rc sns_register_mmc56x3x(sns_register_cb const *register_api);const sns_register_entry sns_static_drivers_list[] ={ { sns_register_af6133e, 1, false}, { sns_register_aw_sar, 1, true}, { sns_register_icm4x6xx, 1, true}, { sns_register_icp201xx, 1, true}, { sns_register_ltr569, 1, false}, { sns_register_mmc56x3x, 1, false},};const uint32_t sns_static_drivers_list_len = ARR_SIZE(sns_static_drivers_list);6375平台参考设计默认用的g-sensor是i3c总线的，对于用i2c总线的g-sensor做如下更改
ADSP.VT.5.4.2/adsp_proc/core/settings/buses/i2c/config/strait/i2c_devcfg.c
158static plat_device_config i2c_device_config[] =159{160#ifdef ENABLE_I2C_01161{... ... --- 174.gpi_protocol= PROTOCOL_I3C, +++ 174.gpi_protocol= PROTOCOL_I2C,... ...ADSP.VT.5.4.2/adsp_proc/core/settings/buses/qup_fw/config/strait/fw_devcfg.c
--- se_cfg se0_cfg_qrd = { 0x80000, SE_PROTOCOL_I3C,GSI, TRUE, TRUE};+++se_cfg se0_cfg_qrd = { 0x80000, SE_PROTOCOL_I2C,GSI, TRUE, TRUE};三、 编译
cd ADSP.VT.5.4.2/adsp_proc/build/ms && python ./build_variant.py strait.adsp.prod
四、验证
将ADSP.VT.5.4.2/adsp_proc/build/ms/bin/strait.adsp.prod/splitbins 下面的adsp.bxx和adsp.mdt通过adb push到机器中验证
1. 重新挂载为读写
adb root; adb shell mount -o rw,remount /vendor/firmware_mnt ;2. push的路径
/vendor/firmware_mnt/image也可以重新打包
cd Strait.LA.2.1.1/common/buildpython build.py用fastboot 烧写nonhlos
Strait.LA.2.1.1/common/build/ufs/bin/asic/NON-HLOS.bin
fastboot flash modem_a NON-HLOS.bin
五、json配置文件
5.1 修改json文件，以holi_icm4x6xx_0.json为例子，需要注意的是下面几项
"config":{"hw_platform": ["MTP", "QRD"],"soc_id": ["454", "435", "459", "507"]},"icm4x6xx_0_platform":{"owner": "sns_icm4x6xx",".config":{"owner": "sns_icm4x6xx","bus_type":{ "type": "int", "ver": "0","data": "0"},"bus_instance":{ "type": "int", "ver": "0","data": "1"},"slave_config":{ "type": "int", "ver": "0","data": "104"},1. hw_platform 可以 cat /sys/devices/soc0/hw_platform 确认
2. soc_id 可以 cat /sys/devices/soc0/soc_id 确认
3. bus_type 0 表示i2c, 还有i3c, spi, uart具体查看高通文档
4. bus_instance在6375平台有两路QUP用于sensor,看硬件连接选择1或者2 (从1开始)
5. slave_config 器件的i2c地址，这里填的是7bit地址的10进制
5.2 机器root以后push json文件到 /vendor/etc/sensors/config/
5.3 重启机器验证，如果不行检查/mnt/vendor/persist/sensors/registry/registry/ 下面 icm4x6xx相关的文件是否生成，
如果没有则说明hw_platform 或 soc_id 不匹配
5.4 json 文件没问题后，放到入的 vendor/qcom/proprietary/sensors-see/registry/config/ 对于的平台名字的目录下
六、 Debug
进入QXDM后按快捷键F3调出Message View窗口，右键选择configure设置过滤sns的log
对于sensor初始化时的log抓不到的情况，将ADSP子系统重启打开通过QXDM发送命令重启ADSP抓取init阶段log
确认adsp所在的subsys后将related写入restart_level
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