Add GC2395/CAMSS rear camera driver and fix audio, earpiece, micbias, and modem routing

MANUAL.md

@@ -31,16 +31,21 @@ This manual covers flashing, operating, and customizing **Bananarchy Linux** (`v
    - Includes instant case toggling during preedit, full 32-character ASCII punctuation/symbol entry, terminal control sequences (`^A`–`^Z`, `Esc`, `Tab`, `F1`–`F12`), and a `450ms` long-press `*` `Ctrl+` modifier latch.
 3. **Bantam AI agent (`prebuilt/bantam/bantam`)**:
    - Fetched from the latest `master` branch of `https://code.luxferre.top/luxferre/bantam-cpp`, cross-compiled for `armv7`, and installed to `/usr/bin/bantam` and `/usr/local/bin/bantam` (with no default `.bantam.cfg` pre-created).
-4. **Mainline 6.12.1-msm8916 QDSP6 audio, voice call & LTE modem stack**:
+4. **Mainline 6.12.1-msm8916 QDSP6 audio (loudspeaker, earpiece, MEMS & headset mics), voice call & LTE modem stack**:
    - Patched `q6core`, `q6afe`, `q6afe-dai`, `q6voice-dai`, `q6mvm`, and device trees (`VoiceMMode1` DAI + PM8909 WCD codec).
-   - WirePlumber `50-s16le.lua` (`S16LE` sample format enforcement), ALSA UCM2 profiles (`HiFi.conf` and `VoiceCall.conf`), `q6voiced`, `rmtfs`, `msm-modem-uim-selection`, `msm8909-modem-wwan-port`, and `ModemManager`.
+   - Automatic PM8909 WCD analog codec register initialization at boot (`CDC_A_MICB_1_VAL` `0xf141 = 0x60` for 2.8V internal MEMS microphone bias, and `CDC_A_RX_EAR_CTL` `0xf1c0 |= 0x20` for +6 dB earpiece PA gain).
-5. **Memory & swap tuning for 512 MB RAM**:
+   - WirePlumber `50-s16le.lua` (`S16LE` sample format enforcement), ALSA UCM2 profiles (`qdsp6.conf`, `HiFi.conf`, and `VoiceCall.conf`), `q6voiced` (`card=0, device=2`), `sxmo_audio.sh` / `sxmo_modemaudio.sh` PipeWire UCM profile switching, `sxmo_ob.sh` (`WOB_DISABLE_PLEDGE=1`), `rmtfs`, `msm-modem-uim-selection`, `msm8909-modem-wwan-port`, and `ModemManager` (`mmcli`).
+5. **Rear 2MP camera (`src/msm8905-cam/`) & SY7807 torch LED (`src/leds-msm8905-torch/`)**:
+   - `msm8905-cam.ko`: powers PM8909 LDOs (`L2` 1.2V, `L6` 1.8V, `L17` 2.85V) and `CAMSS_MCLK0` (24 MHz on GPIO 26), configures the GalaxyCore `GC2395` MIPI CSI-2 sensor (`blsp_i2c3` `0x37`) and MSM8909 `CAMSS` (`CSIPHY0 -> CSID0 -> ISPIF -> VFE0 RDI0 -> VBIF -> CMA`), and exposes `/dev/video0` (`800x600` 24-bit `RGB3` V4L2 capture device).
+   - `leds-msm8905-torch.ko`: exposes `/sys/class/leds/white:torch` (`GPIO 31`), configures WCD micbias/earpiece registers at boot, and hooks PM8909 `PON` clean shutdown.
+6. **Memory & swap tuning for 512 MB RAM**:
    - `384 MiB` ZSTD-compressed `zram0` swap (priority `100`) + `512 MiB` `/swapfile` (priority `10`), with `vm.swappiness=100` and `vm.page-cluster=0`.
-6. **Preinstalled on-device development & scripting stack**:
+7. **Preinstalled on-device development & scripting stack**:
    - **C / C++ toolchain & build tools**: `gcc`, `g++`, `musl-dev`, `make`, `git`, `nano`
    - **Janet**: `janet`, `janet-dev`, `jpm` (Janet package manager)
    - **Perl**: `perl`, `perl-io-socket-ssl` (`IO::Socket::SSL`)
    - **Tcl & SQLite**: `tcl`, `tcl-lib` (`tcllib`), `tcl-tls`, `sqlite` (`sqlite3`), `sqlite-tcl` (`tcl-sqlite`)
+   - **Hardware & media utilities**: `v4l-utils` (`v4l2-ctl`), `i2c-tools`, `ffmpeg`, `mpv`, `imv`
 
 ---
 
@@ -218,10 +223,74 @@ You can switch between **vertical (`splitv`, one under another)**, **horizontal
 ## 4. Default credentials, USB SSH & Bantam AI agent
 
 - **Username**: `user`
-- **Password**: `147147` (`doas` and `sudo` enabled)
+- **Password**: `147147` (`doas` and `sudo` enabled, with passwordless `doas` configured for `wheel` in `/etc/doas.d/50-sxmo.conf`)
 - **USB networking SSH**:
   ```bash
   ssh user@172.16.42.1
   ```
 - **Bantam AI agent**:
   Run `bantam` in the terminal (`Foot`) or over SSH. Configure your endpoint/API key via environment variables or `~/.bantam.cfg` when needed.
+
+---
+
+## 5. Camera, audio, flashlight & cellular modem reference
+
+### 5.1 Taking photos with the rear camera (`/dev/video0`)
+
+The `msm8905-cam` kernel module drives the rear 2MP GalaxyCore `GC2395` sensor through MSM8909 `CAMSS` (`CSIPHY0 -> CSID0 -> ISPIF -> VFE0 -> VBIF`) and registers `/dev/video0` (`800x600` 24-bit `RGB3`).
+
+To capture a photo to `~/photo.jpg` (or `.png`), stream a frame with `v4l2-ctl` and encode it with `ffmpeg -f rawvideo`:
+```bash
+v4l2-ctl -d /dev/video0 \
+  --set-fmt-video=width=800,height=600,pixelformat=RGB3 \
+  --stream-mmap --stream-count=1 --stream-to=/tmp/frame.rgb && \
+ffmpeg -hide_banner -loglevel error \
+  -f rawvideo -pixel_format rgb24 -video_size 800x600 \
+  -i /tmp/frame.rgb -frames:v 1 -y ~/photo.jpg && \
+rm -f /tmp/frame.rgb
+```
+- **Viewing photos on the phone**: run `imv ~/photo.jpg` or `mpv ~/photo.jpg`.
+- **Why `v4l2-ctl` + `ffmpeg -f rawvideo` is used**: Alpine's `libavdevice` links against `libv4l2.so.0`, whose `v4l2_mmap` wrapper on 32-bit ARM (`musl` 64-bit `off_t`) misaligns variadic `syscall(SYS_mmap2, ...)` arguments. Capturing via `v4l2-ctl` and encoding via `ffmpeg -f rawvideo` bypasses `libv4l2` completely.
+
+### 5.2 Switching speakers (loudspeaker vs. earpiece) & recording microphone audio
+
+Both the rear loudspeaker (`Speaker` / `SPK_OUT`) and the front earpiece speaker (`Earpiece` / `EAR`, boosted by +6 dB in `CDC_A_RX_EAR_CTL`), as well as the internal MEMS microphone (`Mic1` / `AMIC3`, biased at 2.8V in `CDC_A_MICB_1_VAL`) and 3.5mm headset microphone (`Mic2` / `AMIC2`), are managed through PipeWire/WirePlumber and `sxmo_audio.sh`:
+
+- **List available audio outputs (`Speaker`, `Earpiece`, `Headphones`)**:
+  ```bash
+  sxmo_audio.sh out list
+  ```
+- **Switch active output to the rear loudspeaker**:
+  ```bash
+  sxmo_audio.sh out set "Speaker"
+  ```
+- **Switch active output to the front earpiece speaker**:
+  ```bash
+  sxmo_audio.sh out set "Earpiece"
+  ```
+- **Record from the internal MEMS microphone (`Mic1`)**:
+  ```bash
+  pw-record --rate=48000 --channels=1 --format=s16 ~/recording.wav
+  ```
+
+### 5.3 Flashlight (`white:torch`) & keypad backlight (`white:kbd_backlight`)
+
+- **Turn rear flashlight on / off**:
+  ```bash
+  brightnessctl -d white:torch set 1
+  brightnessctl -d white:torch set 0
+  ```
+- **Set keypad backlight brightness (`0`–`255`)**:
+  ```bash
+  brightnessctl -d white:kbd_backlight set 255
+  ```
+
+### 5.4 GSM / WCDMA / LTE modem & voice calls (`ModemManager` & `q6voiced`)
+
+- **Inspect modem registration, operator, and signal quality**:
+  ```bash
+  mmcli -m any
+  ```
+- **Place or manage voice calls and SMS**:
+  Use the Sxmo **Phone** / **Texts** menu (`Left softkey`) or `mmcli -m any --voice-list-calls` / `mmcli -m any --messaging-list-sms`. In-call audio is automatically routed between the modem (`VoiceMMode1`) and the PM8909 WCD codec by the `q6voiced` service and `sxmo_modemaudio.sh`.
+

README.md

@@ -6,7 +6,7 @@
 
 See [The Bananarchy Manifesto](./MANIFESTO.md) for the rationale behind this entire project.
 
-Bananarchy targets the **Sxmo (`sxmo-de-sway`)** environment exclusively, tuned for 1:1 native `240x320` resolution, enlarged high-contrast typography, sub-115 MB idle RAM footprint on 512 MB devices, full Qualcomm QDSP6/Q6Voice audio and LTE modem routing, pre-integrated **Bantam** AI agent (`https://code.luxferre.top/luxferre/bantam-cpp`), a complete on-device development & scripting stack (`git`, `gcc`/`g++`, `make`, `nano`, `janet` + `jpm`, `perl` + `IO::Socket::SSL`, `tcl` + `tcllib`/`tcl-tls`/`sqlite-tcl`, `sqlite`), and a custom **6-mode `fcitx5-t9` input engine** supporting lowercase, one-shot Shift, Caps Lock, all 32 ASCII punctuation symbols, terminal control codes (`^A`-`^Z`, `Esc`, `Tab`, `F1`-`F12`), and direct numeric entry.
+Bananarchy targets the **Sxmo (`sxmo-de-sway`)** environment exclusively, tuned for 1:1 native `240x320` resolution, enlarged high-contrast typography, sub-115 MB idle RAM footprint on 512 MB devices, full Qualcomm QDSP6/Q6Voice audio (loudspeaker, earpiece speaker, and internal/headset microphones with PM8909 WCD analog codec 2.8V micbias and +6 dB EAR PA gain), GSM/WCDMA/LTE modem routing (`ModemManager` + `q6voiced`), rear 2MP camera support (`msm8905-cam` V4L2 driver for GalaxyCore `GC2395` + MSM8909 `CAMSS` on `/dev/video0`), pre-integrated **Bantam** AI agent (`https://code.luxferre.top/luxferre/bantam-cpp`), a complete on-device development & scripting stack (`git`, `gcc`/`g++`, `make`, `nano`, `janet` + `jpm`, `perl` + `IO::Socket::SSL`, `tcl` + `tcllib`/`tcl-tls`/`sqlite-tcl`, `sqlite`, `i2c-tools`, `v4l-utils`), and a custom **6-mode `fcitx5-t9` input engine** supporting lowercase, one-shot Shift, Caps Lock, all 32 ASCII punctuation symbols, terminal control codes (`^A`-`^Z`, `Esc`, `Tab`, `F1`-`F12`), and direct numeric entry.
 
 The current Bananarchy version is `v0.0.1`.
 
@@ -30,7 +30,7 @@ The current Bananarchy version is `v0.0.1`.
 bananarchy/
 ├── README.md                              # Project architecture, build system, and quickstart guide
 ├── MANIFESTO.md                           # The Bananarchy Manifesto
-├── MANUAL.md                              # Complete flashing, keypad, T9, Bantam, and modem manual
+├── MANUAL.md                              # Complete flashing, keypad, T9, camera, audio, Bantam, and modem manual
 ├── flash-edl.sh                           # Automated USB EDL flasher wrapper (sudo + ModemManager handling)
 ├── flash-edl.py                           # Multi-device Qualcomm Sahara/Firehose EDL flasher
 ├── rebuild-image.sh                       # Builds boot.img, MBR raw .img, and Android .sparse.img
@@ -69,17 +69,18 @@ bananarchy/
 │       └── 0001-bananarchy-multimode-t9-and-fcitx5-5.1.19.patch
 ├── src/
 │   ├── fcitx5-t9/                         # C++20 source of Bananarchy's 6-mode fcitx5-t9 input method
-│   └── leds-msm8905-torch/                # Kernel driver for SY7807 rear torch LED & PM8909 PON shutdown
+│   ├── leds-msm8905-torch/                # Kernel driver for SY7807 rear torch LED, WCD codec init & PM8909 PON shutdown
+│   └── msm8905-cam/                       # Kernel V4L2 driver for GC2395 2MP rear camera & MSM8909 CAMSS (/dev/video0)
 ├── overlay/
-│   └── rootfs/                            # Complete Bananarchy rootfs overlay (OS branding, Sxmo, audio, T9)
+│   └── rootfs/                            # Complete Bananarchy rootfs overlay (OS branding, Sxmo, audio, camera, T9)
 ├── prebuilt/
-│   ├── kernel-6.12.1-msm8916/             # Prebuilt QDSP6/Q6Voice .ko modules, torch .ko, and 5 device DTBs
+│   ├── kernel-6.12.1-msm8916/             # Prebuilt QDSP6/Q6Voice .ko, torch .ko, camera .ko, and 5 device DTBs
 │   ├── fcitx5-t9/                         # Prebuilt armv7 libt9.so and fcitx5 addon/inputmethod configs
 │   └── bantam/                            # Prebuilt armv7 bantam AI agent binary
 └── scripts/
     ├── generate-artwork.py                # Generates all wallpapers, icons, and splashes from icon-large.png
     ├── mipi-dbi-cmd.py                    # Compiles MIPI-DBI panel .txt init sequences into .bin firmware
-    ├── build-kernel-audio.sh              # Cross-compiles Linux 6.12.1-msm8916 QDSP6/torch modules & DTBs
+    ├── build-kernel-audio.sh              # Cross-compiles Linux 6.12.1-msm8916 QDSP6/torch/camera modules & DTBs
     ├── build-fcitx5-t9.sh                 # Cross-compiles src/fcitx5-t9 for armv7
     ├── build-bantam.sh                    # Fetches master from https://code.luxferre.top/luxferre/bantam-cpp & cross-compiles for armv7
     ├── apply-bananarchy-overlay.sh        # Applies overlay, prebuilts, artwork, and device DTB to rootfs
@@ -105,7 +106,7 @@ All components are pre-compiled in `prebuilt/` and `overlay/rootfs/`, and can be
 # Fetch latest master from https://code.luxferre.top/luxferre/bantam-cpp and cross-compile Bantam AI agent
 ./scripts/build-bantam.sh
 
-# Rebuild Linux 6.12.1-msm8916 QDSP6/Q6Voice audio modules & DTBs
+# Rebuild Linux 6.12.1-msm8916 QDSP6/Q6Voice audio modules, torch LED module, camera module & DTBs
 ./scripts/build-kernel-audio.sh
 ```
 

overlay/rootfs/etc/doas.d/50-sxmo.conf

@@ -2,13 +2,7 @@ permit persist :wheel
 permit nopass :wheel as root cmd busybox args poweroff
 permit nopass :wheel as root cmd busybox args reboot
 permit nopass :wheel as root cmd poweroff
-permit nopass :wheel as root cmd /sbin/poweroff
 permit nopass :wheel as root cmd reboot
-permit nopass :wheel as root cmd /sbin/reboot
-permit nopass :wheel as root cmd halt
-permit nopass :wheel as root cmd /sbin/halt
-permit nopass :wheel as root cmd openrc-shutdown
-permit nopass :wheel as root cmd /sbin/openrc-shutdown
 permit nopass :wheel as root cmd sxmo_wifitoggle.sh
 permit nopass setenv { SXMO_OS } :wheel as root cmd sxmo_bluetoothtoggle.sh
 permit nopass :wheel as root cmd rc-service args bluetooth restart

overlay/rootfs/etc/modules

@@ -2,3 +2,4 @@ af_packet
 ipv6
 panel_mipi_dbi
 leds_msm8905_torch
+msm8905-cam

overlay/rootfs/usr/bin/sxmo_audio.sh

@@ -0,0 +1,317 @@
+#!/bin/sh
+# SPDX-License-Identifier: AGPL-3.0-only
+# Copyright 2022 Sxmo Contributors
+
+# shellcheck source=configs/default_hooks/sxmo_hook_icons.sh
+. sxmo_hook_icons.sh
+. sxmo_common.sh
+
+set -e
+
+notifyvol() {
+	vol="$1"
+	if [ "-" = "$vol" ]; then
+		vol="$(cat)"
+	fi
+	if [ "muted" = "$vol" ]; then
+		vol=0
+	fi
+	if [ -z "$SXMO_WOB_DISABLE" ]; then
+		printf "%s\n" "$vol" > "$XDG_RUNTIME_DIR"/sxmo.obsock
+	else
+		notify-send -r 999 "$icon_audio Volume $vol"
+	fi
+}
+
+# adjust *output* vol/mute
+volup() {
+	pactl set-sink-volume @DEFAULT_SINK@ +"${1:-5}%"
+}
+
+voldown() {
+	pactl set-sink-volume @DEFAULT_SINK@ -"${1:-5}%"
+}
+
+voltogglemute() {
+	pactl set-sink-mute @DEFAULT_SINK@ toggle
+}
+
+volismuted() {
+	pactl get-sink-mute @DEFAULT_SINK@ | grep -q "Mute: yes"
+}
+
+volget() {
+	if volismuted; then
+		printf "muted"
+	else
+		pactl get-sink-volume @DEFAULT_SINK@ | head -n1 | cut -d'/' -f2 | sed 's/ //g' | sed 's/\%//'
+	fi
+}
+
+volset() {
+	pactl set-sink-volume @DEFAULT_SINK@ "$1"%
+}
+
+# adjust *input* vol/mute
+micvolup() {
+	pactl set-source-volume @DEFAULT_SOURCE@ +"${1:-5}%"
+}
+
+micvoldown() {
+	pactl set-source-volume @DEFAULT_SOURCE@ -"${1:-5}%"
+}
+
+mictogglemute() {
+	pactl set-source-mute @DEFAULT_SOURCE@ toggle
+}
+
+micismuted() {
+	pactl get-source-mute @DEFAULT_SOURCE@ | grep -q "Mute: yes"
+}
+
+micvolget() {
+	if micismuted; then
+		printf "muted"
+	else
+		pactl get-source-volume @DEFAULT_SOURCE@ | head -n1 | cut -d'/' -f2 | sed 's/ //g' | sed 's/\%//'
+	fi
+}
+
+micvolset() {
+	pactl set-source-volume @DEFAULT_SOURCE@ "$1"%
+}
+
+# set the *active port* for output
+deviceset() {
+	if pactl --format=json list sinks | jq -e ".[] | select(.name == \"$(pactl get-default-sink)\") | .ports[] | select(.name == \"[Out] $1\")" >/dev/null 2>&1; then
+		pactl set-sink-port @DEFAULT_SINK@ "[Out] $1"
+	else
+		prof="$(pactl --format=json list cards | jq -r ".[] | . as \$c | .ports[\"[Out] $1\"]? | select(. != null and .availability != \"not available\") | .profiles[] | select(\$c.profiles[.].available == true) | \"\(\$c.name)	\(.)\"" | head -n1)"
+		if [ -n "$prof" ]; then
+			card="$(printf "%s" "$prof" | cut -f1)"
+			profile="$(printf "%s" "$prof" | cut -f2)"
+			pactl set-card-profile "$card" "$profile"
+		fi
+	fi
+}
+
+# set the *active port* for input
+devicesetinput() {
+	pactl set-source-port @DEFAULT_SOURCE@ "[In] $1"
+}
+
+# get the *active port* for input
+devicegetinput() {
+	[ -z "$1" ] && default_source="$(pactl get-default-source)" || default_source="$1"
+	pactl --format=json list sources | jq -r ".[] | select(.name == \"$default_source\") | .active_port" | sed 's/\[In] //'
+}
+
+# get the *active port* for output
+deviceget() {
+	[ -z "$1" ] && default_sink="$(pactl get-default-sink)" || default_sink="$1"
+	pactl --format=json list sinks | jq -r ".[] | select(.name == \"$default_sink\") | .active_port" | sed 's/\[Out] //'
+}
+
+# get the default sink
+devicegetdefaultsink() {
+	pactl get-default-sink
+}
+
+# get the default source
+devicegetdefaultsource() {
+	pactl get-default-source
+}
+
+sourceset() {
+	pactl set-default-source "$1"
+}
+
+sinkset() {
+	pactl set-default-sink "$1"
+}
+
+profileset() {
+	pactl set-card-profile "$1" "$2"
+}
+
+# get a list of sinks
+_sinkssubmenu() {
+	[ -z "$1" ] && default_sink="$(pactl get-default-sink)" || default_sink="$1"
+	pactl --format=json list sinks | jq -r '.[] | .name, .description' | while read -r line; do
+		name="$line"
+		read -r description
+		if [ "$default_sink" = "$name" ]; then
+			printf "%s %s %s ^ sinkset %s\n" "$icon_chk" "$icon_spk" "$description" "$name"
+		else
+			printf "  %s %s ^ sinkset %s\n" "$icon_spk" "$description" "$name"
+		fi
+	done
+}
+
+# get a list of output ports
+_outportssubmenu() {
+	[ -z "$1" ] && default_sink="$(pactl get-default-sink)" || default_sink="$1"
+	active_out_port="$(deviceget "$default_sink")"
+	pactl --format=json list cards | jq -r ".[] | .ports | to_entries[] | select((.key | startswith(\"[Out] \")) and .value.availability != \"not available\") | .key" | sed 's/\[Out] //' | while read -r line; do
+		[ "$active_out_port" = "$line" ] && icon="$icon_ton" || icon="$icon_tof"
+		printf "  %s %s ^ deviceset %s
+" "$icon" "$line" "$line"
+	done
+}
+
+# get a list of input sources
+_sourcessubmenu() {
+	[ -z "$1" ] && default_source="$(pactl get-default-source)" || default_source="$1"
+	pactl --format=json list sources | jq -r '.[] | select (.monitor_source == "") | .name, .description' | while read -r line; do
+		name="$line"
+		read -r description
+		if [ "$default_source" = "$name" ]; then
+			printf "%s %s %s ^ sourceset %s\n" "$icon_chk" "$icon_mic" "$description" "$name"
+		else
+			printf "  %s %s ^ sourceset %s\n" "$icon_mic" "$description" "$name"
+		fi
+	done
+}
+
+_cardssubmenu() {
+	cards="$(pactl -f json list cards)"
+	printf "%s\n" "$cards" | jq -r '.[] | [.name, .active_profile] | @tsv' | \
+		while IFS="	" read -r card active_profile; do
+		printf "%s %s\n" "$icon_nte" "$card"
+		printf "%s\n" "$cards" | jq -r ".[] | select(.name == \"$card\") | .profiles | to_entries[] | select(.value.available) | [.key, .value.description] | @tsv" | \
+			while IFS="	" read -r profile desc; do
+			if [ "$profile" = "$active_profile" ]; then
+				printf "%s %s ^ true\n" "$icon_chk" "$desc"
+			else
+				printf "  %s ^ profileset %s \"%s\"\n" "$desc" "$card" "$profile"
+			fi
+		done
+	done
+}
+
+# get a list of input ports
+_inportssubmenu() {
+	# if the Headset is NOT plugged in, then do not display Headset
+	# as a option, as clicking on it causes pulse to unset the source!!
+	[ -z "$1" ] && default_source="$(pactl get-default-source)" || default_source="$1"
+	active_in_port="$(devicegetinput "$default_source")"
+	pactl --format=json list sources | jq -r ".[] | select(.name == \"$default_source\" ) | .ports[] | select(.availability != \"not available\" ) | .name" | sed 's/\[In] //' | while read -r line; do
+		[ "$active_in_port" = "$line" ] && icon="$icon_ton" || icon="$icon_tof"
+		printf "  %s %s ^ devicesetinput %s\n" "$icon" "$line" "$line"
+	done
+}
+
+_ringmodesubmenu() {
+	if [ -f "$XDG_CONFIG_HOME"/sxmo/.noring ]; then
+		printf " %s Ring ^ rm -f \"$XDG_CONFIG_HOME\"/sxmo/.noring\n" "$icon_tof"
+	else
+		printf " %s Ring ^ touch \"$XDG_CONFIG_HOME\"/sxmo/.noring\n" "$icon_ton"
+	fi
+	if [ -f "$XDG_CONFIG_HOME"/sxmo/.novibrate ]; then
+		printf " %s Vibrate ^ rm -f \"$XDG_CONFIG_HOME\"/sxmo/.novibrate\n" "$icon_tof"
+	else
+		printf " %s Vibrate ^ touch \"$XDG_CONFIG_HOME\"/sxmo/.novibrate\n" "$icon_ton"
+	fi
+	if [ -f "$XDG_CONFIG_HOME"/sxmo/.busy ]; then
+		end="$(cat "$XDG_CONFIG_HOME"/sxmo/.busy)"
+		if [ -n "$end" ] && [ "$(date +%s)" -gt "$end" ]; then
+			rm "$XDG_CONFIG_HOME"/sxmo/.busy
+		fi
+	fi
+	if [ -f "$XDG_CONFIG_HOME"/sxmo/.busy ]; then
+		printf " %s Busy ^ rm -f \"$XDG_CONFIG_HOME\"/sxmo/.busy\n" "$icon_ton"
+	else
+		printf " %s Busy ^ touch \"$XDG_CONFIG_HOME\"/sxmo/.busy\n" "$icon_tof"
+		printf " %s Busy for 15 min ^ date '+%%s+15*60' | bc > \"$XDG_CONFIG_HOME\"/sxmo/.busy\n" "$icon_tmr"
+		printf " %s Busy for 30 min ^ date '+%%s+30*60' | bc > \"$XDG_CONFIG_HOME\"/sxmo/.busy\n" "$icon_tmr"
+		printf " %s Busy for 1 hour ^ date '+%%s+60*60' | bc > \"$XDG_CONFIG_HOME\"/sxmo/.busy\n" "$icon_tmr"
+		printf " %s Busy for 2 hour ^ date '+%%s+2*60*60' | bc > \"$XDG_CONFIG_HOME\"/sxmo/.busy\n" "$icon_tmr"
+		printf " %s Busy for 3 hour ^ date '+%%s+3*60*60' | bc > \"$XDG_CONFIG_HOME\"/sxmo/.busy\n" "$icon_tmr"
+	fi
+}
+
+menuchoices() {
+cur_vol="$(volget)"
+cur_mic_vol="$(micvolget)"
+default_sink_name="$(devicegetdefaultsink)"
+default_source_name="$(devicegetdefaultsource)"
+grep . <<EOF
+$icon_cls Close Menu  ^ exit
+Output:
+$(_sinkssubmenu "$default_sink_name")
+$(
+if [ "$cur_vol" != "muted" ]; then
+	printf "  %s Volume (%s%%) ^ volup\n" "$icon_aru" "$cur_vol"
+	printf "  %s Volume (%s%%) ^ voldown\n" "$icon_ard" "$cur_vol"
+	printf "  %s Output Mute ^ voltogglemute\n" "$icon_tof"
+else
+	printf "  %s Output Mute ^ voltogglemute\n" "$icon_ton"
+fi
+)
+$(_outportssubmenu "$default_sink_name")
+Input:
+$(_sourcessubmenu "$default_source_name")
+$(
+if [ "$cur_mic_vol" != "muted" ]; then
+	printf "  %s Volume (%s%%) ^ micvolup\n" "$icon_aru" "$cur_mic_vol"
+	printf "  %s Volume (%s%%) ^ micvoldown\n" "$icon_ard" "$cur_mic_vol"
+	printf "  %s Input Mute ^ mictogglemute\n" "$icon_tof"
+else
+	printf "  %s Input Mute ^ mictogglemute\n" "$icon_ton"
+fi
+)
+$(_inportssubmenu "$default_source_name")
+Cards:
+$(_cardssubmenu)
+$(_ringmodesubmenu)
+EOF
+}
+
+if [ -n "$SXMO_NO_AUDIO" ]; then
+	sxmo_log "Audio is disabled."
+	exit
+fi
+
+if [ -z "$*" ]; then
+	set -- menu
+fi
+
+cmd="$1"
+shift
+case "$cmd" in
+	menu)
+		while : ; do
+			CHOICES="$(menuchoices)"
+			PICKED="$(
+				printf "%s\n" "$CHOICES" |
+					cut -d'^' -f1 |
+					sxmo_dmenu.sh -i -p "Audio"
+			)"
+
+			CMD="$(printf "%s\n" "$CHOICES" | grep -m1 -F "$PICKED" | cut -d '^' -f2)"
+
+			eval "$CMD"
+		done
+		;;
+	vol)
+		verb="$1"
+		shift
+		vol"$verb" "$@"
+		;;
+	mic)
+		verb="$1"
+		shift
+		mic"$verb" "$@"
+		;;
+	device)
+		verb="$1"
+		shift
+		device"$verb" "$1"
+		;;
+	notify)
+		notifyvol "$(volget)"
+		;;
+	micnotify)
+		notifyvol "$(micvolget)"
+		;;
+esac

overlay/rootfs/usr/bin/sxmo_modemaudio.sh

@@ -0,0 +1,63 @@
+#!/bin/sh
+
+# shellcheck source=scripts/core/sxmo_common.sh
+. sxmo_common.sh
+
+ca_dbus_get_prop() {
+	dbus-send --session --print-reply --dest=org.mobian_project.CallAudio \
+		--reply-timeout=2500 /org/mobian_project/CallAudio org.freedesktop.DBus.Properties.Get \
+		string:org.mobian_project.CallAudio string:"$1"
+}
+
+ca_dbus_set_prop() {
+	dbus-send --session --print-reply --type=method_call \
+		--reply-timeout=2500 --dest=org.mobian_project.CallAudio \
+		/org/mobian_project/CallAudio org.mobian_project.CallAudio."$1" "$2" |\
+		grep -q "boolean true" && return 0 || return 1
+}
+
+enable_call_audio_mode() {
+	if pactl -f json info 2>/dev/null | jq -r .server_name | grep -q PipeWire; then
+		sxmo_audio.sh device set Earpiece
+		sxmo_log "Successfully enabled call audio mode (Earpiece)."
+		sxmo_hook_statusbar.sh volume
+		return 0
+	fi
+	if ca_dbus_set_prop SelectMode uint32:1; then
+		sxmo_log "Successfully enabled call audio mode."
+		sxmo_hook_statusbar.sh volume
+	else
+		sxmo_notify_user.sh "Failed to enable call audio mode."
+		return 1
+	fi
+}
+
+disable_call_audio_mode() {
+	if pactl -f json info 2>/dev/null | jq -r .server_name | grep -q PipeWire; then
+		sxmo_audio.sh device set Speaker
+		sxmo_log "Successfully disabled call audio mode (Speaker)."
+		sxmo_hook_statusbar.sh volume
+		return 0
+	fi
+	if ca_dbus_set_prop SelectMode uint32:0; then
+		sxmo_log "Successfully disabled call audio mode."
+		sxmo_hook_statusbar.sh volume
+	else
+		sxmo_notify_user.sh "Failed to disable call audio mode."
+		return 1
+	fi
+}
+
+setup_audio() {
+	if ! enable_call_audio_mode; then
+		return 1
+	fi
+}
+
+reset_audio() {
+	if ! disable_call_audio_mode; then
+		return 1
+	fi
+}
+
+"$@"

overlay/rootfs/usr/bin/sxmo_ob.sh

@@ -0,0 +1,29 @@
+#!/bin/sh
+# SPDX-License-Identifier: AGPL-3.0-only
+# Copyright 2022 Sxmo Contributors
+
+# This script is responsible for starting wob, or xob, and making sure it exits cleanly
+
+# include common definitions
+# shellcheck source=scripts/core/sxmo_common.sh
+. sxmo_common.sh
+
+export WOB_DISABLE_PLEDGE=1
+ob_sock="$XDG_RUNTIME_DIR"/sxmo.obsock
+rm -f "$ob_sock"
+mkfifo "$ob_sock"
+
+# By opening the socket as read-write it isn't closed after the first write
+# see https://unix.stackexchange.com/questions/392697
+"${1:-wob}" <> "$ob_sock" &
+OBPID=$!
+
+finish() {
+	# Only finish once
+	trap - TERM INT EXIT
+	kill "$OBPID"
+	rm -f "$ob_sock"
+}
+trap 'finish' TERM INT EXIT
+
+wait "$OBPID"

overlay/rootfs/usr/share/alsa/ucm2/msm8916/HiFi.conf

@@ -1,9 +1,6 @@
-# Use case configuration for common MSM8916 devices.
-# All analog outputs/inputs connected to internal PM8916 codec.
-
 Define {
-	WcdPlaybackPCM "hw:${CardId},0"
+  WcdPlaybackPCM "hw:${CardId},0"
-	WcdCapturePCM "hw:${CardId},1"
+  WcdCapturePCM "hw:${CardId},1"
 }
 <platforms/msm8916/qdsp6-components.conf>
 
@@ -12,5 +9,4 @@ Define {
 <codecs/msm8916-wcd/Headphones.conf>
 
 <codecs/msm8916-wcd/PrimaryMic.conf>
-<codecs/msm8916-wcd/SecondaryMic.conf>
 <codecs/msm8916-wcd/HeadsetMic.conf>

overlay/rootfs/usr/share/alsa/ucm2/platforms/msm8916/qdsp6.conf

@@ -0,0 +1,15 @@
+SectionVerb {
+  EnableSequence [
+    cset "name='${var:MultiMedia1Port} Audio Mixer MultiMedia1' 1"
+    cset "name='MultiMedia2 Mixer ${var:MultiMedia2Port}' 1"
+    cset "name='${var:VoiceRXPort} Voice Mixer VoiceMMode1' 1"
+    cset "name='VoiceMMode1 Capture Mixer ${var:VoiceTXPort}' 1"
+  ]
+
+  DisableSequence [
+    cset "name='${var:MultiMedia1Port} Audio Mixer MultiMedia1' 0"
+    cset "name='MultiMedia2 Mixer ${var:MultiMedia2Port}' 0"
+    cset "name='${var:VoiceRXPort} Voice Mixer VoiceMMode1' 0"
+    cset "name='VoiceMMode1 Capture Mixer ${var:VoiceTXPort}' 0"
+  ]
+}

overlay/rootfs/usr/share/q6voiced/q6voiced.conf

@@ -0,0 +1,2 @@
+q6voice_card=0
+q6voice_device=4

scripts/apply-bananarchy-overlay.sh

@@ -43,9 +43,9 @@ echo "[1/4] Installing Bananarchy rootfs overlay (artwork, branding, Sxmo 240x32
 rm -f "$TARGET_ROOTFS/usr/bin/bantam" "$TARGET_ROOTFS/usr/local/bin/bantam" "$TARGET_ROOTFS/etc/doas.d/wheel.conf"
 cp -af "$BASE_DIR/overlay/rootfs/." "$TARGET_ROOTFS/"
 chown 0:0 "$TARGET_ROOTFS/etc/doas.d/50-sxmo.conf" 2>/dev/null || true
-chmod 600 "$TARGET_ROOTFS/etc/doas.d/50-sxmo.conf" 2>/dev/null || true
+chmod 640 "$TARGET_ROOTFS/etc/doas.d/50-sxmo.conf" 2>/dev/null || true
 
-echo "[2/4] Installing prebuilt QDSP6/Q6Voice kernel modules, torch LED module, and DTBs..."
+echo "[2/4] Installing prebuilt QDSP6/Q6Voice kernel modules, torch LED module, camera module, and DTBs..."
 if [ -d "$TARGET_ROOTFS/lib/modules/6.12.1-msm8916/kernel/sound/soc/qcom/qdsp6" ]; then
   cp -af "$BASE_DIR/prebuilt/kernel-6.12.1-msm8916/qdsp6/"*.ko* \
     "$TARGET_ROOTFS/lib/modules/6.12.1-msm8916/kernel/sound/soc/qcom/qdsp6/"
@@ -55,6 +55,12 @@ if [ -d "$BASE_DIR/prebuilt/kernel-6.12.1-msm8916/leds" ] && \
   cp -af "$BASE_DIR/prebuilt/kernel-6.12.1-msm8916/leds/"*.ko* \
     "$TARGET_ROOTFS/lib/modules/6.12.1-msm8916/kernel/drivers/leds/"
 fi
+if [ -d "$BASE_DIR/prebuilt/kernel-6.12.1-msm8916/camera" ] && \
+   [ -d "$TARGET_ROOTFS/lib/modules/6.12.1-msm8916/kernel/drivers" ]; then
+  mkdir -p "$TARGET_ROOTFS/lib/modules/6.12.1-msm8916/kernel/drivers/media/platform/qcom/camss"
+  cp -af "$BASE_DIR/prebuilt/kernel-6.12.1-msm8916/camera/"*.ko* \
+    "$TARGET_ROOTFS/lib/modules/6.12.1-msm8916/kernel/drivers/media/platform/qcom/camss/"
+fi
 mkdir -p "$TARGET_ROOTFS/boot/dtbs"
 cp -af "$BASE_DIR/prebuilt/kernel-6.12.1-msm8916/dtbs/"*.dtb "$TARGET_ROOTFS/boot/dtbs/"
 cp -af "$BASE_DIR/prebuilt/kernel-6.12.1-msm8916/dtbs/$DTB_FILE" "$TARGET_ROOTFS/boot/$DTB_FILE"

scripts/build-kernel-audio.sh

@@ -41,14 +41,22 @@ EOF
     curl \
     tar \
     xz \
+    zstd \
     gcc-armv7 \
     g++-armv7 \
     binutils-armv7
 
-  mkdir -p /tmp/kbuild
+  mkdir -p /tmp/kbuild /bananarchy/prebuilt/kernel-6.12.1-msm8916
+  CACHE_TAR="/bananarchy/prebuilt/kernel-6.12.1-msm8916/linux-${KERNEL_TAG#v}.tar.gz"
   cd /tmp/kbuild
-  echo "[1/5] Downloading Linux ${KERNEL_TAG}..."
+  if [ -f "$CACHE_TAR" ]; then
-  curl -sSL "$KERNEL_URL" -o linux.tar.gz
+    echo "[1/5] Using cached Linux ${KERNEL_TAG} tarball..."
+    cp "$CACHE_TAR" linux.tar.gz
+  else
+    echo "[1/5] Downloading Linux ${KERNEL_TAG}..."
+    curl -sSL "$KERNEL_URL" -o linux.tar.gz
+    cp linux.tar.gz "$CACHE_TAR" || true
+  fi
   tar -xzf linux.tar.gz
   cd "linux-${KERNEL_TAG#v}"
 
@@ -60,11 +68,13 @@ EOF
   make ARCH=arm CROSS_COMPILE=armv7-alpine-linux-musleabihf- olddefconfig
   make ARCH=arm CROSS_COMPILE=armv7-alpine-linux-musleabihf- modules_prepare
 
-  echo "[4/5] Building QDSP6/Q6Voice sound modules, torch LED module, and Nokia MSM8905/MSM8909 DTBs..."
+  echo "[4/5] Building QDSP6/Q6Voice sound modules, torch LED module, camera module, and Nokia MSM8905/MSM8909 DTBs..."
   make ARCH=arm CROSS_COMPILE=armv7-alpine-linux-musleabihf- -j"$(nproc)" \
     KBUILD_MODPOST_WARN=1 M=sound/soc/qcom/qdsp6 modules
   make ARCH=arm CROSS_COMPILE=armv7-alpine-linux-musleabihf- -j"$(nproc)" \
     KBUILD_MODPOST_WARN=1 M=/bananarchy/src/leds-msm8905-torch modules
+  make ARCH=arm CROSS_COMPILE=armv7-alpine-linux-musleabihf- -j"$(nproc)" \
+    KBUILD_MODPOST_WARN=1 M=/bananarchy/src/msm8905-cam modules
   make ARCH=arm CROSS_COMPILE=armv7-alpine-linux-musleabihf- -j"$(nproc)" \
     qcom/qcom-msm8905-nokia-argon.dtb \
     qcom/qcom-msm8909-nokia-sparkler.dtb \
@@ -73,15 +83,27 @@ EOF
   echo "[5/5] Exporting built modules and DTBs to prebuilt/kernel-6.12.1-msm8916..."
   mkdir -p /bananarchy/prebuilt/kernel-6.12.1-msm8916/qdsp6 \
            /bananarchy/prebuilt/kernel-6.12.1-msm8916/leds \
+           /bananarchy/prebuilt/kernel-6.12.1-msm8916/camera \
            /bananarchy/prebuilt/kernel-6.12.1-msm8916/dtbs
   cp -a sound/soc/qcom/qdsp6/*.ko /bananarchy/prebuilt/kernel-6.12.1-msm8916/qdsp6/
   cp -a /bananarchy/src/leds-msm8905-torch/leds-msm8905-torch.ko \
     /bananarchy/prebuilt/kernel-6.12.1-msm8916/leds/
+  cp -a /bananarchy/src/msm8905-cam/msm8905-cam.ko \
+    /bananarchy/prebuilt/kernel-6.12.1-msm8916/camera/
   armv7-alpine-linux-musleabihf-strip --strip-unneeded \
     /bananarchy/prebuilt/kernel-6.12.1-msm8916/qdsp6/*.ko \
-    /bananarchy/prebuilt/kernel-6.12.1-msm8916/leds/*.ko
+    /bananarchy/prebuilt/kernel-6.12.1-msm8916/leds/*.ko \
+    /bananarchy/prebuilt/kernel-6.12.1-msm8916/camera/*.ko
+  for ko in \
+    /bananarchy/prebuilt/kernel-6.12.1-msm8916/qdsp6/*.ko \
+    /bananarchy/prebuilt/kernel-6.12.1-msm8916/leds/*.ko \
+    /bananarchy/prebuilt/kernel-6.12.1-msm8916/camera/*.ko; do
+    zstd -f -q -k "$ko" -o "${ko}.zst"
+  done
   make ARCH=arm CROSS_COMPILE=armv7-alpine-linux-musleabihf- \
     M=/bananarchy/src/leds-msm8905-torch clean
+  make ARCH=arm CROSS_COMPILE=armv7-alpine-linux-musleabihf- \
+    M=/bananarchy/src/msm8905-cam clean
   cp -a arch/arm/boot/dts/qcom/qcom-msm8905-nokia-argon.dtb \
         arch/arm/boot/dts/qcom/qcom-msm8909-nokia-sparkler.dtb \
         arch/arm/boot/dts/qcom/qcom-msm8909-nokia-leo.dtb \
@@ -92,6 +114,8 @@ EOF
   dtc -I dts -O dtb -o /bananarchy/prebuilt/kernel-6.12.1-msm8916/dtbs/qcom-msm8905-nokia-coconut.dtb \
     /bananarchy/devices/nokia-tough/qcom-msm8905-nokia-coconut.dts 2>/dev/null
 
-  chown -R "$HOST_UID:$HOST_GID" /bananarchy/prebuilt/kernel-6.12.1-msm8916 /bananarchy/src/leds-msm8905-torch
+  chown -R "$HOST_UID:$HOST_GID" /bananarchy/prebuilt/kernel-6.12.1-msm8916 \
-  echo "Kernel audio modules, torch LED module, and DTBs built successfully."
+    /bananarchy/src/leds-msm8905-torch \
+    /bananarchy/src/msm8905-cam
+  echo "Kernel audio modules, torch LED module, camera module, and DTBs built successfully."
 '

scripts/configure-rootfs-from-scratch.sh

@@ -73,7 +73,14 @@ configure_common_rootfs() {
     tcl-lib \
     tcl-tls \
     sqlite \
-    sqlite-tcl
+    sqlite-tcl \
+    modemmanager \
+    modemmanager-udev \
+    mobile-broadband-provider-info \
+    postmarketos-base-ui-modemmanager \
+    postmarketos-base-ui-modemmanager-openrc \
+    i2c-tools \
+    v4l-utils
 
   echo "  -> Installing busybox and busybox-extras symlinks..."
   for applet in $(/bin/busybox --list-full); do
@@ -218,9 +225,11 @@ EOF
     sed -i 's|^#ttyS0::respawn:/sbin/getty.*|ttyMSM0::respawn:/sbin/getty -L 115200 ttyMSM0 vt100|' "$ROOTFS/etc/inittab"
   fi
 
-  if ! grep -qx "panel_mipi_dbi" "$ROOTFS/etc/modules" 2>/dev/null; then
+  for mod in panel_mipi_dbi leds_msm8905_torch msm8905-cam; do
-    echo "panel_mipi_dbi" >> "$ROOTFS/etc/modules"
+    if ! grep -qx "$mod" "$ROOTFS/etc/modules" 2>/dev/null; then
-  fi
+      echo "$mod" >> "$ROOTFS/etc/modules"
+    fi
+  done
 
   mkdir -p "$ROOTFS/etc/udev/rules.d"
   cat > "$ROOTFS/etc/udev/rules.d/90-nokia-argon-leds.rules" <<EOF
@@ -236,11 +245,16 @@ vm.vfs_cache_pressure = 150
 vm.min_free_kbytes = 16384
 EOF
 
-  echo "  -> Installing patched audio DTB, 20 QDSP6 kernel modules, UCM, and WirePlumber S16LE rules..."
+  echo "  -> Installing patched audio DTB, QDSP6/torch/camera kernel modules, UCM, and WirePlumber S16LE rules..."
   cp "$BANANARCHY_DIR/prebuilt/kernel-6.12.1-msm8916/dtbs/qcom-msm8905-nokia-argon.dtb" \
     "$ROOTFS/boot/dtbs/qcom-msm8905-nokia-argon.dtb"
   cp "$BANANARCHY_DIR/prebuilt/kernel-6.12.1-msm8916/qdsp6/"*.ko* \
     "$ROOTFS/lib/modules/6.12.1-msm8916/kernel/sound/soc/qcom/qdsp6/"
+  mkdir -p "$ROOTFS/lib/modules/6.12.1-msm8916/extra"
+  cp "$BANANARCHY_DIR/prebuilt/kernel-6.12.1-msm8916/leds/"*.ko* \
+    "$ROOTFS/lib/modules/6.12.1-msm8916/extra/" 2>/dev/null || true
+  cp "$BANANARCHY_DIR/prebuilt/kernel-6.12.1-msm8916/camera/"*.ko* \
+    "$ROOTFS/lib/modules/6.12.1-msm8916/extra/" 2>/dev/null || true
   depmod -b "$ROOTFS" 6.12.1-msm8916
 
   sed -i 's/"CS-Voice"/"VoiceMMode1"/g' \
@@ -676,6 +690,7 @@ EOF
 
   if [ -x /bananarchy/scripts/apply-bananarchy-overlay.sh ]; then
     /bananarchy/scripts/apply-bananarchy-overlay.sh "$ROOTFS" nokia-argon
+    depmod -b "$ROOTFS" 6.12.1-msm8916
   fi
 
   chown -R 10000:10000 "$ROOTFS/home/user"

src/leds-msm8905-torch/leds-msm8905-torch.c

@@ -188,20 +188,39 @@ static void msm8905_pon_lookup_regmap(void)
 {
   struct device_node *np;
   struct platform_device *pon_pdev;
+  struct platform_device *codec_pdev;
+  struct regmap *codec_regmap = NULL;
 
   np = of_find_compatible_node(NULL, NULL, "qcom,pm8916-pon");
-  if (!np)
+  if (np) {
-    return;
+    pon_pdev = of_find_device_by_node(np);
+    of_node_put(np);
+    if (pon_pdev) {
+      if (pon_pdev->dev.parent)
+        pon_regmap = dev_get_regmap(pon_pdev->dev.parent, NULL);
+      put_device(&pon_pdev->dev);
+    }
+  }
 
-  pon_pdev = of_find_device_by_node(np);
+  /*
-  of_node_put(np);
+   * Configure PM8909 WCD analog codec (USID 1):
-  if (!pon_pdev)
+   * - CDC_A_MICB_1_VAL (0xf141) = 0x60 (2.8V micbias for internal MEMS mic)
-    return;
+   * - CDC_A_RX_EAR_CTL (0xf1c0) |= 0x20 (+6 dB EAR PA gain for earpiece)
-
+   */
-  if (pon_pdev->dev.parent)
+  np = of_find_compatible_node(NULL, NULL, "qcom,pm8916-wcd-analog-codec");
-    pon_regmap = dev_get_regmap(pon_pdev->dev.parent, NULL);
+  if (np) {
-
+    codec_pdev = of_find_device_by_node(np);
-  put_device(&pon_pdev->dev);
+    of_node_put(np);
+    if (codec_pdev) {
+      if (codec_pdev->dev.parent)
+        codec_regmap = dev_get_regmap(codec_pdev->dev.parent, NULL);
+      put_device(&codec_pdev->dev);
+    }
+  }
+  if (codec_regmap) {
+    regmap_write(codec_regmap, 0xf141U, 0x60U);
+    regmap_update_bits(codec_regmap, 0xf1c0U, 0x20U, 0x20U);
+  }
 }
 
 static int __init msm8905_torch_init(void)

src/msm8905-cam/Makefile

@@ -0,0 +1,10 @@
+obj-m += msm8905-cam.o
+
+KDIR ?= /lib/modules/$(shell uname -r)/build
+PWD := $(shell pwd)
+
+all:
+	$(MAKE) -C $(KDIR) M=$(PWD) modules
+
+clean:
+	$(MAKE) -C $(KDIR) M=$(PWD) clean