Android固件firmware使用方法_firmware for android system-优快云博客

本文链接：https://blog.youkuaiyun.com/zhangdaxia2/article/details/87284887

本文详细介绍固件文件如何在Android系统中进行集成与编译，包括将固件文件push到指定目录，通过内核模块获取固件，以及在设备vendor配置文件中添加固件包。文中还展示了具体的操作步骤，如编译前的准备、重启测试和功能验证。

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1.kernel/drivers/base/firmware_class.c

@@ -299,6 +299,8 @@ static void fw_free_buf(struct firmware_buf *buf)
 static char fw_path_para[256];
 static const char * const fw_path[] = {
        fw_path_para,
+       "/system/vendor/firmware",
+       "/system/etc/firmware",
        "/lib/firmware/updates/" UTS_RELEASE,
        "/lib/firmware/updates",
        "/lib/firmware/" UTS_RELEASE,

把固件文件push到/system/etc/firmware。在内核模块中可以通过request_firmware_nowait等方法获取固件。编译烧录系统

3.重启测试功能

4.功能测试通过，在源码级别拷贝文件

diff --git a/vendor/qcom/proprietary/common/config/device-vendor.mk b/vendor/qcom/proprietary/common/config/device-vend
index 1d33e58..e1ec457 100755
--- a/vendor/qcom/proprietary/common/config/device-vendor.mk
+++ b/vendor/qcom/proprietary/common/config/device-vendor.mk
@@ -3031,3 +3031,9 @@ PRODUCT_PACKAGES_DEBUG += $(QUICKBOOT)
 ifneq ($(wildcard $(QC_PROP_ROOT)/qrdplus/Extension),)
   ADDITIONAL_BUILD_PROPERTIES += persist.radio.multisim.config=dsds
 endif
+
+# awinic fireware
+PRODUCT_PACKAGES += aw8896_cfg.bin
+PRODUCT_PACKAGES += aw8896_fw.bin
+PRODUCT_PACKAGES += aw8896_fw_d.bin
+PRODUCT_PACKAGES += aw8896_fw_e.bin
\ No newline at end of file
diff --git a/vendor/qcom/proprietary/prebuilt_HY11/target/product/msm8909w/Android.mk b/vendor/qcom/proprietary/prebuil
index c8c7f40..d37fa36 100755
--- a/vendor/qcom/proprietary/prebuilt_HY11/target/product/msm8909w/Android.mk
+++ b/vendor/qcom/proprietary/prebuilt_HY11/target/product/msm8909w/Android.mk
@@ -621,6 +621,42 @@ LOCAL_MODULE_PATH   := $(PRODUCT_OUT)/system/etc/firmware
 include $(BUILD_PREBUILT)
 
 include $(CLEAR_VARS)
+LOCAL_MODULE        := aw8896_cfg.bin
+LOCAL_MODULE_OWNER  := qcom
+LOCAL_MODULE_TAGS   := optional
+LOCAL_MODULE_CLASS  := ETC
+LOCAL_SRC_FILES     := ../../.././target/product/msm8909w/system/etc/firmware/aw8896_cfg.bin
+LOCAL_MODULE_PATH   := $(PRODUCT_OUT)/system/etc/firmware
+include $(BUILD_PREBUILT)

重新编译测试