#!/bin/bash

# BBeOS Driver Build Script
# Builds Q20-specific drivers and integrates them into the kernel

set -e

echo "Building BBeOS Q20 drivers..."

# Configuration
KERNEL_SRC="kernel-source"
DRIVERS_DIR="drivers"
BUILD_DIR="driver-build"

# Set up environment
export ARCH=arm
export CROSS_COMPILE=arm-linux-gnueabihf-

# Create build directory
echo "Creating build directory..."
rm -rf $BUILD_DIR
mkdir -p $BUILD_DIR

# Copy drivers to build directory
echo "Copying drivers..."
cp -r $DRIVERS_DIR/* $BUILD_DIR/

# Build drivers
echo "Building drivers..."
cd $BUILD_DIR

# Build display driver
echo "Building Q20 panel driver..."
$(MAKE) -C ../$KERNEL_SRC M=$(pwd) modules

# Check if drivers were built successfully
if [ ! -f "display/q20-panel.ko" ]; then
    echo "Error: Failed to build q20-panel.ko"
    exit 1
fi

if [ ! -f "input/q20-keyboard.ko" ]; then
    echo "Error: Failed to build q20-keyboard.ko"
    exit 1
fi

echo "Drivers built successfully!"

# Copy drivers to kernel modules directory
echo "Installing drivers..."
mkdir -p ../$KERNEL_SRC/drivers/gpu/drm/panel/
mkdir -p ../$KERNEL_SRC/drivers/input/keyboard/

cp display/q20-panel.ko ../$KERNEL_SRC/drivers/gpu/drm/panel/
cp input/q20-keyboard.ko ../$KERNEL_SRC/drivers/input/keyboard/

cd ..

echo "Driver build complete!"
echo "Files created:"
echo "  - $BUILD_DIR/display/q20-panel.ko"
echo "  - $BUILD_DIR/input/q20-keyboard.ko"
echo ""
echo "Drivers installed to kernel modules directory"