Add prebuilt_rfsa module type

Add a prebuilt_rfsa module type that can install firmware files to
vendor/lib/rfsa.

Bug: 181289338
Test: TestPrebuiltRFSADirPath
Change-Id: I9dcf6a2188e60f361673bf876a52e985ab709d2e

etc/prebuilt_etc.go

@@ -52,6 +52,7 @@ func RegisterPrebuiltEtcBuildComponents(ctx android.RegistrationContext) {
 	ctx.RegisterModuleType("prebuilt_font", PrebuiltFontFactory)
 	ctx.RegisterModuleType("prebuilt_firmware", PrebuiltFirmwareFactory)
 	ctx.RegisterModuleType("prebuilt_dsp", PrebuiltDSPFactory)
+	ctx.RegisterModuleType("prebuilt_rfsa", PrebuiltRFSAFactory)
 }
 
 var PrepareForTestWithPrebuiltEtc = android.FixtureRegisterWithContext(RegisterPrebuiltEtcBuildComponents)
@@ -405,3 +406,16 @@ func PrebuiltDSPFactory() android.Module {
 	android.InitAndroidArchModule(module, android.DeviceSupported, android.MultilibFirst)
 	return module
 }
+
+// prebuilt_rfsa installs a firmware file that will be available through Qualcomm's RFSA
+// to the <partition>/lib/rfsa directory.
+func PrebuiltRFSAFactory() android.Module {
+	module := &PrebuiltEtc{}
+	// Ideally these would go in /vendor/dsp, but the /vendor/lib/rfsa paths are hardcoded in too
+	// many places outside of the application processor.  They could be moved to /vendor/dsp once
+	// that is cleaned up.
+	InitPrebuiltEtcModule(module, "lib/rfsa")
+	// This module is device-only
+	android.InitAndroidArchModule(module, android.DeviceSupported, android.MultilibFirst)
+	return module
+}

etc/prebuilt_etc_test.go

@@ -288,3 +288,37 @@ func TestPrebuiltDSPDirPath(t *testing.T) {
 		})
 	}
 }
+
+func TestPrebuiltRFSADirPath(t *testing.T) {
+	targetPath := "out/soong/target/product/test_device"
+	tests := []struct {
+		description  string
+		config       string
+		expectedPath string
+	}{{
+		description: "prebuilt: system rfsa",
+		config: `
+			prebuilt_rfsa {
+				name: "foo.conf",
+				src: "foo.conf",
+			}`,
+		expectedPath: filepath.Join(targetPath, "system/lib/rfsa"),
+	}, {
+		description: "prebuilt: vendor rfsa",
+		config: `
+			prebuilt_rfsa {
+				name: "foo.conf",
+				src: "foo.conf",
+				soc_specific: true,
+				sub_dir: "sub_dir",
+			}`,
+		expectedPath: filepath.Join(targetPath, "vendor/lib/rfsa/sub_dir"),
+	}}
+	for _, tt := range tests {
+		t.Run(tt.description, func(t *testing.T) {
+			result := prepareForPrebuiltEtcTest.RunTestWithBp(t, tt.config)
+			p := result.Module("foo.conf", "android_arm64_armv8-a").(*PrebuiltEtc)
+			android.AssertPathRelativeToTopEquals(t, "install dir", tt.expectedPath, p.installDirPath)
+		})
+	}
+}