raspberry-pi: fix sway, phosh startup (!775)

Both sway and phosh require hardware acceleration (DRM) to work. Let's
activate that when we request one of them. Also don't let them fail
during startup on inputless setups (which is common on a raspberry pi).

Phosh is too slow to be unsable, but now, it'll at least be unusable out
of the box ;-)

device/device-raspberry-pi/APKBUILD

@@ -2,7 +2,7 @@
 pkgname="device-raspberry-pi"
 pkgdesc="Raspberry Pi"
 pkgver=0.1
-pkgrel=5
+pkgrel=6
 url="https://postmarketos.org"
 license="MIT"
 arch="armhf"
@@ -12,8 +12,15 @@ makedepends="devicepkg-dev"
 subpackages="
 	$pkgname-kernel-rpi:kernel_rpi
 	$pkgname-kernel-rpi2:kernel_rpi2
+	$pkgname-sway
+	$pkgname-phosh
 "
-source="deviceinfo config.txt usercfg.txt cmdline.txt 95-vchiq-permissions.rules"
+source="deviceinfo
+	config.txt
+	usercfg.txt
+	cmdline.txt
+	95-vchiq-permissions.rules
+	start-even-without-input.sh"
 
 build() {
 	devicepkg_build $startdir $pkgname
@@ -42,8 +49,23 @@ kernel_rpi2() {
 	mkdir "$subpkgdir"
 }
 
+sway() {
+	install_if="$pkgname postmarketos-ui-sway"
+	depends="$pkgname mesa-dri-vc4"
+	install -Dm644 "$srcdir"/start-even-without-input.sh "$pkgdir"/etc/profile.d/start-even-without-input.sh
+	mkdir "$subpkgdir"
+}
+
+phosh() {
+	install_if="$pkgname postmarketos-ui-phosh"
+	depends="$pkgname mesa-dri-vc4"
+	install -Dm644 "$srcdir"/start-even-without-input.sh "$pkgdir"/etc/profile.d/start-even-without-input.sh
+	mkdir "$subpkgdir"
+}
+
 sha512sums="62048277ee2486322316995d294cdcfcd8b868fe63877d3d23c4634df48d246c2fc48acd54ee546d87e4f7806b1b113dbbf33a8e096be75c4f48682c77063c1e  deviceinfo
-de4d6967be7f68d0b005ab968e6f8da2eacf4ba2d814d1f47ed6ad43ba81cacc1fdc74b3ba3a44b5ae6f08c51b53708432afb5779422b977b65ae69a5a4bf068  config.txt
+501b085650a7c1e39628b64c6bf05e967f08470c9c70c648ce45b5cdf05e831b994f91e91ba83ad076797deb7ee405ff4912bcd71779d66b7056d1786d366a3c  config.txt
 e94c810f973eb6b6d0fb3687ea1d70612ba00e9c5d6b3608390a161e077c5591fd9d232c37b42443c05ed28bb639ca1754422ff35899c5e33d7fc266e0e1ad05  usercfg.txt
 ae3de0b8fec07d3a283dc3c06bf8678eec1e65c9faf0b7f4fdc9fb92751e324d1f8e2fb224dbbf561b7e5a6fb34769bfa1657858375f74b101a130d78e0737e2  cmdline.txt
-7e5505cb07d5b4a81bd28443d508336b5c547356538f1c06f91ed93ad0d7d456d4f74f1d24df5a2e08c17e74f0a66607352ac4874e967e9a91dfec9522d2d58d  95-vchiq-permissions.rules"
+7e5505cb07d5b4a81bd28443d508336b5c547356538f1c06f91ed93ad0d7d456d4f74f1d24df5a2e08c17e74f0a66607352ac4874e967e9a91dfec9522d2d58d  95-vchiq-permissions.rules
+5e91a9efbaa0c734492472b0d1bb1798ec75587f3cf0ccbc31489b2e1ee6c6713e78397e67cdce3616af967bb3cbf57b49a137879106a3eec4a4a4e3d74f0610  start-even-without-input.sh"

device/device-raspberry-pi/config.txt

@@ -2,6 +2,7 @@ disable_splash=0
 boot_delay=0
 gpu_mem=256
 gpu_mem_256=64
+dtoverlay=vc4-kms-v3d
 [pi0]
 kernel=vmlinuz-rpi
 initramfs initramfs-rpi

device/device-raspberry-pi/start-even-without-input.sh

@@ -0,0 +1,4 @@
+#!/bin/sh
+
+# ask sway, phosh and other wlroots-based compositors to start headless too.
+export WLR_LIBINPUT_NO_DEVICES=1