Detect m7 variant during init

Apply the following device names during init:
* ro.boot.mid=PN0720000 --> m7wls (Sprint)
* ro.boot.mid=PN0731000 --> m7wlv (Verizon)
* (all other cases)     --> m7 (GSM)

Change-Id: I5ae05ecb0d8c5806ddc0cf72497fc691bf0ed8c3

BoardConfig.mk

@@ -88,6 +88,11 @@ BOARD_SEPOLICY_UNION += \
     akmd.te \
     cir_fw_update.te
 
+# Vendor Init
+TARGET_UNIFIED_DEVICE := true
+TARGET_INIT_VENDOR_LIB := libinit_m7univ
+TARGET_LIBINIT_DEFINES_FILE := device/htc/fireball/init/init_m7univ.c
+
 # TWRP
 TW_THEME := portrait_hdpi
 TARGET_RECOVERY_PIXEL_FORMAT := "RGBX_8888"
@@ -96,7 +101,7 @@ TW_BRIGHTNESS_PATH := "/sys/class/leds/lcd-backlight/brightness"
 TW_INCLUDE_CRYPTO := true
 BOARD_RECOVERY_BLDRMSG_OFFSET := 2048
 RECOVERY_VARIANT := twrp
-TARGET_RECOVERY_DEVICE_MODULES := chargeled
+TARGET_RECOVERY_DEVICE_MODULES := chargeled libinit_m7univ
 RECOVERY_SDCARD_ON_DATA := true
 BOARD_HAS_NO_REAL_SDCARD := true
 TW_NO_USB_STORAGE := true

recovery/init/Android.mk

@@ -0,0 +1,15 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_C_INCLUDES := system/core/init
+
+LOCAL_CFLAGS := \
+    -Wall \
+    -DANDROID_TARGET=\"$(TARGET_BOARD_PLATFORM)\"
+
+LOCAL_SRC_FILES := init_m7univ.c
+
+LOCAL_MODULE_TAGS := optional
+LOCAL_MODULE := libinit_m7univ
+include $(BUILD_STATIC_LIBRARY)

recovery/init/init_m7univ.c

@@ -0,0 +1,58 @@
+/*
+   Copyright (c) 2013, The Linux Foundation. All rights reserved.
+
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions are
+   met:
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+    * Neither the name of The Linux Foundation nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+   THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+   WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+   ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+   BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+   CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+   SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+   BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+   WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+   OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+   IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdlib.h>
+
+#include "vendor_init.h"
+#include "property_service.h"
+#include "log.h"
+#include "util.h"
+
+void vendor_load_properties() {
+    char platform[PROP_VALUE_MAX];
+    char bootmid[PROP_VALUE_MAX];
+    int rc;
+
+    rc = property_get("ro.board.platform", platform);
+    if (!rc || strncmp(platform, ANDROID_TARGET, PROP_VALUE_MAX))
+        return;
+
+    property_get("ro.boot.mid", bootmid);
+
+    if (strstr(bootmid, "PN0720000")) {
+        property_set("ro.product.device", "m7wls");
+        property_set("ro.build.product", "m7wls");
+    } else if (strstr(bootmid, "PN0731000")) {
+        property_set("ro.product.device", "m7wlv");
+        property_set("ro.build.product", "m7wlv");
+    } else {
+        property_set("ro.product.device", "m7");
+        property_set("ro.build.product", "m7");
+    }
+}