From 8f86f098b6ea868f8d98b4d26df8382dc4047c81 Mon Sep 17 00:00:00 2001
From: Sébastien Dailly <sebastien@chimrod.com>
Date: Sun, 14 Nov 2021 20:42:34 +0100
Subject: Inital commit

---
 board/post-image.sh | 106 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 106 insertions(+)
 create mode 100755 board/post-image.sh

(limited to 'board/post-image.sh')

diff --git a/board/post-image.sh b/board/post-image.sh
new file mode 100755
index 0000000..c7cc700
--- /dev/null
+++ b/board/post-image.sh
@@ -0,0 +1,106 @@
+#!/bin/bash
+
+set -e
+
+. "${BR2_EXTERNAL_PIAUDIO_PATH}/board/common.sh"
+
+BOARD_DIR="$(dirname $0)"
+GENIMAGE_CFG="${BOARD_DIR}/genimage-${BOARDNAME}.cfg"
+GENIMAGE_TMP="${BUILD_DIR}/genimage.tmp"
+
+for arg in "$@"
+do
+	case "${arg}" in
+		--add-miniuart-bt-overlay)
+		if ! grep -qE '^dtoverlay=' "${BINARIES_DIR}/rpi-firmware/config.txt"; then
+			echo "Adding 'dtoverlay=miniuart-bt' to config.txt (fixes ttyAMA0 serial console)."
+			cat << __EOF__ >> "${BINARIES_DIR}/rpi-firmware/config.txt"
+
+# fixes rpi (3B, 3B+, 3A+, 4B and Zero W) ttyAMA0 serial console
+dtoverlay=miniuart-bt
+__EOF__
+		fi
+		;;
+		--aarch64)
+		# Run a 64bits kernel (armv8)
+		sed -e '/^kernel=/s,=.*,=Image,' -i "${BINARIES_DIR}/rpi-firmware/config.txt"
+		if ! grep -qE '^arm_64bit=1' "${BINARIES_DIR}/rpi-firmware/config.txt"; then
+			cat << __EOF__ >> "${BINARIES_DIR}/rpi-firmware/config.txt"
+
+# enable 64bits support
+arm_64bit=1
+__EOF__
+		fi
+		;;
+		--gpu_mem_256=*|--gpu_mem_512=*|--gpu_mem_1024=*)
+		# Set GPU memory
+		gpu_mem="${arg:2}"
+		sed -e "/^${gpu_mem%=*}=/s,=.*,=${gpu_mem##*=}," -i "${BINARIES_DIR}/rpi-firmware/config.txt"
+		;;
+
+		--configure-piaudio)
+		# Configure piaudio
+
+		# Set the bootloader delay to 0 seconds
+		if ! grep -qE '^boot_delay=0' "${BINARIES_DIR}/rpi-firmware/config.txt"; then
+			cat << __EOF__ >> "${BINARIES_DIR}/rpi-firmware/config.txt"
+boot_delay=0
+__EOF__
+		fi
+
+		# Set turbo mode for boot
+		if ! grep -qE '^initial_turbo' "${BINARIES_DIR}/rpi-firmware/config.txt"; then
+			cat << __EOF__ >> "${BINARIES_DIR}/rpi-firmware/config.txt"
+initial_turbo=10
+__EOF__
+		fi
+
+		# Inform the kernel about the filesystem and ro state
+		if ! grep -qE 'fastboot noswap ro' "${BINARIES_DIR}/rpi-firmware/cmdline.txt"; then
+			sed '/^root=/ s/$/ fastboot noswap ro/' -i "${BINARIES_DIR}/rpi-firmware/cmdline.txt"
+		fi
+
+        # Remove the serial console over the UART port and let it available for
+        # bluetooth
+        remove_text "${BINARIES_DIR}/rpi-firmware/cmdline.txt" "console=ttyAMA0,115200 " 
+
+		if ! grep -qE '^dtoverlay=dwc2' "${BINARIES_DIR}/rpi-firmware/config.txt"; then
+
+
+			cat << __EOF__ >> "${BINARIES_DIR}/rpi-firmware/config.txt"
+dtoverlay=dwc2
+
+# https://github.com/raspberrypi/firmware/tree/master/boot/overlays
+dtparam=krnbt=on
+dtparam=i2c=on
+dtparam=audio=on
+dtoverlay=allo-boss-dac-pcm512x-audio
+__EOF__
+		fi
+
+		if ! grep -qE 'modules-load=dwc2,g_serial' "${BINARIES_DIR}/rpi-firmware/cmdline.txt"; then
+			sed '/^root=/ s/$/ modules-load=dwc2,g_serial/' -i "${BINARIES_DIR}/rpi-firmware/cmdline.txt"
+		fi
+        ;;
+	esac
+
+done
+
+# Pass an empty rootpath. genimage makes a full copy of the given rootpath to
+# ${GENIMAGE_TMP}/root so passing TARGET_DIR would be a waste of time and disk
+# space. We don't rely on genimage to build the rootfs image, just to insert a
+# pre-built one in the disk image.
+
+trap 'rm -rf "${ROOTPATH_TMP}"' EXIT
+ROOTPATH_TMP="$(mktemp -d)"
+
+rm -rf "${GENIMAGE_TMP}"
+
+genimage \
+	--rootpath "${ROOTPATH_TMP}"   \
+	--tmppath "${GENIMAGE_TMP}"    \
+	--inputpath "${BINARIES_DIR}"  \
+	--outputpath "${BINARIES_DIR}" \
+	--config "${GENIMAGE_CFG}"
+
+exit $?
-- 
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