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moby: enable camera flash (for use as a torch)

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Colin
2024-10-20 06:25:16 +00:00
parent 92fa2d4776
commit 3f22ac89a1
2 changed files with 64 additions and 5 deletions
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26
hosts/modules/hal/pine64-pinephone-pro/default.nix
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@@ -36,7 +36,7 @@ in
"pine64-alsa-ucm" # upstreaming: https://github.com/alsa-project/alsa-ucm-conf/pull/375
];
# sane.programs.nwg-panel.config.torch = "white:flash"; #< TODO: enable the flashlight/torch
sane.programs.nwg-panel.config.torch = "white:flash";
sane.programs.swaynotificationcenter.config = {
backlight = "backlight"; # /sys/class/backlight/*backlight*/brightness
};
@@ -44,6 +44,18 @@ in
# else it'll change to something which produces no sound (like the "Voice Call" use case)
# sane.programs.callaudiod.enableFor.user.colin = lib.mkForce false;
services.udev.extraRules = let
chmod = lib.getExe' pkgs.coreutils "chmod";
chown = lib.getExe' pkgs.coreutils "chown";
in ''
# make flashlight/torch writable by user.
# taken from postmarketOS: <repo:postmarketOS/pmaports:device/main/device-pine64-pinephone/60-flashlight.rules>
SUBSYSTEM=="leds", DEVPATH=="*/*:flash", RUN+="${chmod} g+w /sys%p/brightness /sys%p/flash_strobe", RUN+="${chown} :video /sys%p/brightness /sys%p/flash_strobe"
# make the front led (and all leds) user-writable (because why not)
SUBSYSTEM=="leds", DEVPATH=="*/*", RUN+="${chmod} g+w /sys%p/brightness /sys%p/flash_strobe", RUN+="${chown} :video /sys%p/brightness"
'';
boot.kernelPatches = [
{
# TODO: upstream into nixpkgs. <repo:nixos/nixpkgs:pkgs/os-specific/linux/kernel/common-config.nix>
@@ -68,18 +80,22 @@ in
name = "rk3399-pinephone-pro-battery";
dtsFile = ./rk3399-pinephone-pro-battery.dtso;
}
{
name = "rk3399-pinephone-pro-flash-led";
dtsFile = ./rk3399-pinephone-pro-flash-led.dtso;
}
{
name = "rk3399-pinephone-pro-lradc-fix";
dtsFile = ./rk3399-pinephone-pro-lradc-fix.dtso;
}
{
name = "rk3399-pinephone-pro-sound";
dtsFile = ./rk3399-pinephone-pro-sound.dtso;
}
{
name = "rk3399-pinephone-pro-modem";
dtsFile = ./rk3399-pinephone-pro-modem.dtso;
}
{
name = "rk3399-pinephone-pro-sound";
dtsFile = ./rk3399-pinephone-pro-sound.dtso;
}
];
# this seems to not actually be necessary (unless maybe my *overlay* #include's stuff)

43
hosts/modules/hal/pine64-pinephone-pro/rk3399-pinephone-pro-flash-led.dtso Normal file
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@@ -0,0 +1,43 @@
// for LED_FUNCTION_FLASH, etc
#include <dt-bindings/leds/common.h>
// for RK_PC6, other pins
#include <dt-bindings/pinctrl/rockchip.h>
// for GPIO_ACTIVE_HIGH
#include <dt-bindings/gpio/gpio.h>
/dts-v1/;
/plugin/;
/ {
/* ensure this overlay applies only to the correct board */
compatible = "pine64,pinephone-pro";
};
// taken from pine64-org/rk3399-pinephone-pro.dts, did not validate against schematic.
// subset of 41742e56f5: "arm64: dts: pinephone-pro: Add camera support"
&{/} {
sgm3140: led-controller {
compatible = "sgmicro,sgm3140";
vin-supply = <&vcc3v3_sys>;
pinctrl-names = "default";
pinctrl-0 = <&flash_pins>;
enable-gpios = <&gpio4 RK_PC6 GPIO_ACTIVE_HIGH>;
flash-gpios = <&gpio1 RK_PA3 GPIO_ACTIVE_HIGH>;
sgm3140_flash: led {
function = LED_FUNCTION_FLASH;
color = <LED_COLOR_ID_WHITE>;
flash-max-timeout-us = <250000>;
};
};
};
&pinctrl {
leds {
flash_pins: flash-pins {
rockchip,pins =
<1 RK_PA3 RK_FUNC_GPIO &pcfg_pull_none>,
<4 RK_PC6 RK_FUNC_GPIO &pcfg_pull_none>;
};
};
};