[工作] Android pm取的package name跟path的用法

取得系統中所有的package:
pm list packages

取得package的path
pm path PACKAGE_NAME

ex:
$ pm path com.android.example
$ /system/app/Example/Example.apk

取得所有package with path
pm list packages -f

[工作] Access PMIC from fastboot command (UEFI)

之前有個需求是希望能透過fastboot command來讓device進shipmode.

找了一下之後發現xbl裡面已經有提供進shipmode的function,

所以我們只需要把這個function加進protocol,

讓bootloader能access這個protocol.


xbl的部份:
Include/Protocol/EFIPmicSchg.h
增加新的定義:


+typedef
+EFI_STATUS(EFIAPI *EFI_PMIC_SCHG_ENABLE_SHIP_MODE)
+(
+  IN UINT32                     PmicDeviceIndex
+);

struct _EFI_PMIC_SCHG_PROTOCOL {
...
+EFI_PMIC_SCHG_ENABLE_SHIP_MODE                EnableShipMode;
...
};


Drivers/PmicDxe/PmicSchgProtocol.c
增加新的function:

+EFI_STATUS
+EFIAPI
+EFI_PmicSchgEnableShipMode
+(
+  IN UINT32    PmicDeviceIndex
+)
+{
+  pm_err_flag_type errFlag = PM_ERR_FLAG__SUCCESS;
+
+  errFlag = pm_schg_batif_enable_shipmode(PmicDeviceIndex);
+  if (PM_ERR_FLAG__SUCCESS != errFlag)
+  {
+    return EFI_DEVICE_ERROR;
+  }
+
+  return EFI_SUCCESS;
+}









EFI_QCOM_PMIC_SCHG_PROTOCOL PmicSchgProtocolImplementation =
{
   ...
+EFI_PmicSchgEnableShipMode,
   ...
};


bootloader的部份:
把xbl裡面protocol的header檔copy過來,
Include/Protocol/EFIPmicSchg.h

Library/BootLib/BootLib.inf
加入protocol的guid:
[Protocols]
...
        gPmicSchgProtocolGuid


XXXModulePkg.dec
更改description, 加入protocol的uuid
gPmicSchgProtocolGuid =          { 0xxxxxxxxx } }


使用protocol function的方式:
EFI_STATUS Status = EFI_SUCCESS;
EFI_PMIC_SCHG_PROTOCOL *PmicSchgProtocol = NULL;
Status = gBS->LocateProtocol(&gPmicSchgProtocolGuid, NULL, (VOID **) &PmicSchgProtocol);

PmicSchgProtocol->EnableShipMode(PM_DEVICE_1);