me176c-firmware: Copy battery daemon

3 files changed, 66 insertions, 4 deletions

diff --git a/.SRCINFO b/.SRCINFO
index 1cacca3c95b0..664a59ca2acc 100644
--- a/.SRCINFO
+++ b/.SRCINFO
@@ -1,13 +1,17 @@
 pkgbase = me176c-firmware
 	pkgdesc = Additional firmware files for the ASUS MeMO Pad 7 (ME176C/CX)
 	pkgver = 12.10.1.36
-	pkgrel = 1
+	pkgrel = 2
 	url = https://github.com/me176c-dev/me176c-archlinux
 	arch = x86_64
 	license = unknown
+	makedepends = python
+	makedepends = mkinitcpio
 	options = !strip
 	source = http://dlcdnet.asus.com/pub/ASUS/EeePAD/ME176C/UL-K013-WW-12.10.1.36-user.zip
+	source = unpackbootimg.py
 	sha256sums = b19a2901bd5920b58bd3693243a9edf433656bcee8f454637ee401e28c096469
+	sha256sums = 3eab49bb9c4e1bb890b77a1b2a6762ecb7b628278789caa2efb82f287635503d
 
 pkgname = me176c-firmware
 
diff --git a/PKGBUILD b/PKGBUILD
index 5fffb6b4d707..0570cbe635c7 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -1,16 +1,33 @@
 # Maintainer: lambdadroid <lambdadroid@gmail.com>
 pkgname=me176c-firmware
 pkgver=12.10.1.36
-pkgrel=1
+pkgrel=2
 pkgdesc="Additional firmware files for the ASUS MeMO Pad 7 (ME176C/CX)"
 arch=(x86_64)
 url="https://github.com/me176c-dev/me176c-archlinux"
 license=('unknown')
+makedepends=('python' 'mkinitcpio')
 options=('!strip')
-source=("http://dlcdnet.asus.com/pub/ASUS/EeePAD/ME176C/UL-K013-WW-$pkgver-user.zip")
-sha256sums=('b19a2901bd5920b58bd3693243a9edf433656bcee8f454637ee401e28c096469')
+source=(
+    "http://dlcdnet.asus.com/pub/ASUS/EeePAD/ME176C/UL-K013-WW-$pkgver-user.zip"
+    'unpackbootimg.py'
+)
+sha256sums=('b19a2901bd5920b58bd3693243a9edf433656bcee8f454637ee401e28c096469'
+            '3eab49bb9c4e1bb890b77a1b2a6762ecb7b628278789caa2efb82f287635503d')
+
+build() {
+    # Extract boot image ramdisk
+    ./unpackbootimg.py boot.img
+    lsinitcpio -x ramdisk
+
+    # Replace /config with /oemcfg, /config is sometimes used for ConfigFS
+    sed -i 's@/config/@/oemcfg/@g' sbin/upi_ug31xx
+}
 
 package() {
+    # Battery daemon
+    install -Dm755 sbin/upi_ug31xx "$pkgdir/opt/asus/me176c/upi_ug31xx"
+
     # WiFi NVRAM file
     install -Dm644 system/etc/nvram.txt "$pkgdir/usr/lib/firmware/brcm/brcmfmac43362-sdio.txt"
 
diff --git a/unpackbootimg.py b/unpackbootimg.py
new file mode 100755
index 000000000000..a63b0eef171c
--- /dev/null
+++ b/unpackbootimg.py
@@ -0,0 +1,41 @@
+#!/usr/bin/env python
+import sys
+import struct
+
+BOOT_MAGIC = 'ANDROID!'.encode()
+
+HEADER_FORMAT = '8s10I16s512s32s1024s'
+HEADER_SIZE = struct.calcsize(HEADER_FORMAT)
+
+def extract_file(f, name, pos, size):
+    f.seek(pos)
+    with open(name, 'wb') as o:
+        o.write(f.read(size))
+
+def unpack_image(f):
+    header = struct.unpack(HEADER_FORMAT, f.read(HEADER_SIZE)[:HEADER_SIZE])
+
+    # Ensure this is an Android boot image
+    if header[0] != BOOT_MAGIC:
+        print("Image does not appear to be an Android boot image")
+        exit(1)
+
+    page_size = header[8]
+    page_mask = page_size - 1
+
+    # Extract kernel
+    kernel_size = header[1]
+    extract_file(f, 'kernel', page_size, kernel_size)
+
+    # Extract ramdisk
+    ramdisk_size = header[3]
+    extract_file(f, 'ramdisk', page_size + (kernel_size + page_mask) & ~page_mask, ramdisk_size)
+
+    # Extract command line
+    cmdline = header[12].decode().rstrip('\0') + header[12].decode().rstrip('\0')
+
+    with open('cmdline.txt', 'w') as o:
+        o.write(cmdline)
+
+with open(sys.argv[1], 'rb') as f:
+    unpack_image(f)