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<h1>motorola titan (Moto G 2014)</h1>
<p>Motorola Moto G 2014 (2nd generation), aka "titan".</p>
<h3>Contributors</h3>
<ul>
<li><a href="https://github.com/PabloCastellano/">PabloCastellano</a></li>
</ul>
<h3>What works</h3>
<ul>
<li>[x] Kernel compiles (LineageOS)</li>
<li>[x] Booting the system</li>
<li>[ ] Splash screens</li>
<li>[x] Unlock the root encrypted partition</li>
<li>[x] Framebuffer graphics</li>
<li>[x] Weston</li>
<li>[x] Touchscreen</li>
<li>[ ] XWayland</li>
<li>[ ] Battery</li>
<li>[ ] Flash light</li>
<li>[ ] RGB front LED</li>
<li>[ ] Backlight control</li>
<li>[x] flash_system</li>
<li>[x] boot</li>
<li>[ ] flash_kernel</li>
<li>[ ] wifi</li>
</ul>
<h3>What doesn't work well</h3>
<ul>
<li>I had to disable -Werror in order to compile the kernel</li>
<li>Screen is laggy</li>
<li>
<p>initfs hook</p>
</li>
<li>
<p>Splash screens don't work and I cannot get framebuffer working in initramfs</p>
</li>
<li>Screen is black after I've entered the password. Workaround:</li>
</ul>
<pre class="codehilite"><code class="language-bash">sh /etc/postmarketos-mkinitfs/hooks/00-device-motorola-titan.sh`</code></pre>
<ul>
<li>Cannot boot if kernel is XZ-compressed (it boots if you build it using <a href="https://github.com/postmarketOS/pmbootstrap/wiki/Troubleshooting%3Akernel#building-the-kernel-with-androids-build-system">Android's build system</a>)</li>
<li>flash_kernel: <a href="https://github.com/postmarketOS/pmbootstrap/issues/126">boot image is too big</a></li>
<li>flash_system: <a href="https://github.com/postmarketOS/pmbootstrap/wiki/Troubleshooting#invalid-sparse-file-format-at-header-magi">Invalid sparse file format at header magi</a></li>
<li>
<p>wifi: requires wcnss-service (some work already begun in <a href="https://github.com/PabloCastellano/pmbootstrap/commits/titan-wifi">titan-wifi</a> branch)</p>
</li>
<li>
<p>show_splash</p>
</li>
</ul>
<pre class="codehilite"><code># From initramfs
/tmp # show_splash splash1.ppm.gz
fbsplash: short read</code></pre>
<p>This is written to dmesg everytime you type the previous command:</p>
<pre class="codehilite"><code>[ 74.192213,0] mdss_fb_alloc_fb_ion_memory: alloc 0x398000B vaddr = e9b99000 (0x00200000 iova) for fb0
[ 74.192374,0] vm_start=b6ad2000 vm_end=b6e6a000 vm_page_prot=1799
[ 74.192685,0] vm_start=b6ad2000 vm_end=b6e6a000 vm_page_prot=1799
[ 74.192846,0] vm_start=b6ad2000 vm_end=b6e6a000 vm_page_prot=1799
[ 74.193004,0] vm_start=b6ad2000 vm_end=b6e6a000 vm_page_prot=1799
[ 74.193106,0] vm_start=b6ad2000 vm_end=b6e6a000 vm_page_prot=1799
[ 74.193263,0] vm_start=b6ad2000 vm_end=b6e6a000 vm_page_prot=1799
[ 74.193366,0] vm_start=b6ad2000 vm_end=b6e6a000 vm_page_prot=1799
[ 74.193522,0] vm_start=b6ad2000 vm_end=b6e6a000 vm_page_prot=1799
[ 74.193624,0] vm_start=b6ad2000 vm_end=b6e6a000 vm_page_prot=1799
[ 74.193780,0] vm_start=b6ad2000 vm_end=b6e6a000 vm_page_prot=1799
[ 74.193882,0] vm_start=b6ad2000 vm_end=b6e6a000 vm_page_prot=1799
[ 74.194037,0] vm_start=b6ad2000 vm_end=b6e6a000 vm_page_prot=1799
[ 74.194138,0] vm_start=b6ad2000 vm_end=b6e6a000 vm_page_prot=1799
[ 74.194292,0] vm_start=b6ad2000 vm_end=b6e6a000 vm_page_prot=1799
[ 74.194446,0] vm_start=b6ad2000 vm_end=b6e6a000 vm_page_prot=1799
[ 74.194547,0] vm_start=b6ad2000 vm_end=b6e6a000 vm_page_prot=1799
[ 74.194702,0] vm_start=b6ad2000 vm_end=b6e6a000 vm_page_prot=1799
[ 74.194804,0] vm_start=b6ad2000 vm_end=b6e6a000 vm_page_prot=1799
[ 74.194960,0] vm_start=b6ad2000 vm_end=b6e6a000 vm_page_prot=1799
[ 74.196516,0] lm3630a_bl 0-0038: wake up and re-init chip</code></pre>
<h3>Useful stuff</h3>
<p>White LED:</p>
<pre class="codehilite"><code class="language-bash">echo 255 > /sys/devices/leds-qpnp-rgb-e1d8be00/leds/white/brightness</code></pre>
<p><a href="https://github.com/LineageOS/android_kernel_motorola_msm8226/blob/cm-14.1/drivers/leds/leds-qpnp.c#L187-L189">RGB LED documentation</a></p>
<h3>Links</h3>
<ul>
<li><a href="https://github.com/LineageOS/android_kernel_motorola_msm8226">android_kernel_motorola_msm8226</a></li>
<li><a href="https://github.com/LineageOS/lineage_wiki/blob/master/_data/devices/titan.yml">titan.yml</a></li>
<li><a href="https://github.com/LineageOS/android_kernel_motorola_msm8226/blob/cm-14.1/arch/arm/configs/titan_defconfig">defconfig</a></li>
<li><a href="https://github.com/LineageOS/android_device_motorola_titan/blob/cm-14.1/proprietary-files.txt">proprietary-files.txt</a></li>
<li>
<p><a href="https://cve.lineageos.org/android_kernel_motorola_msm8226">CVE security status</a></p>
</li>
<li>
<p><a href="http://termbin.com/84rz">dmesg.txt</a></p>
</li>
</ul>
<h3>Photos</h3>
<ul>
<li><a href="https://imgur.com/y1NLmcF">PostmarketOS running on Motorola Moto G 2014 (titan)</a></li>
</ul>
<h3>Drivers table</h3>
<table>
<thead>
<tr>
<th>Component</th>
<th>Brand</th>
<th>Module</th>
<th>Works?</th>
</tr>
</thead>
<tbody>
<tr>
<td>Accelerometer</td>
<td>Bosch Sensortec MEMS accelerometer sensor driver</td>
<td>bma2x2</td>
<td></td>
</tr>
<tr>
<td>Framebuffer</td>
<td></td>
<td>mdss</td>
<td>Yes</td>
</tr>
<tr>
<td>WiFi</td>
<td></td>
<td><a href="https://github.com/LineageOS/android_kernel_motorola_msm8226/blob/cm-14.1/Documentation/devicetree/bindings/wcnss/wcnss-wlan.txt">wcnss</a></td>
<td></td>
</tr>
<tr>
<td>Storage</td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td>USB networking</td>
<td></td>
<td></td>
<td></td>
</tr>
</tbody>
</table>
</div>
</div>
</body>
</html>
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