# Part of JoeyLib, Copyright (c) 2026 Scott Duensing, under the MIT License.
# See LICENSE.md for license information.
# SPDX-License-Identifier: MIT
#
# KPCOMM.DRV, the communications driver the win16 port's Windows runs with
# in place of Windows 3.1's COMM.DRV: both 16550A FIFOs, 115200 baud, any
# common IRQ. Built (installer/lib/winDriver.sh) from the mscomm project's
# drv folder, a checkout beside this repository (../mscomm/drv, or
# KPCOMM_DIR), with its Open Watcom makefile (watcom.mk), into
# toolchains/opt/kpcomm/kpcomm.drv; scripts/lib/win16Gate.sh installs it in
# each run's Windows as comm.drv.

compDescription="win16: KPCOMM.DRV comm driver for its Windows, built from ../mscomm/drv (KPCOMM_DIR)"
compGroups="emulator:win16"
compRequires="openWatcom"
compHostDeps="make"

# shellcheck source=installer/lib/winDriver.sh
source "$JOEY_INSTALLER/lib/winDriver.sh"

kpcommDir="${KPCOMM_DIR:-$(cd "$JOEY_REPO/.." && pwd)/mscomm/drv}"
compPin="dir:$kpcommDir:$(winDriverPin "$kpcommDir")"


compInstall() {
    winDriverBuild "$kpcommDir" watcom.mk kpcomm.drv
}


compInstalled() {
    [ -s "$compDir/kpcomm.drv" ]
}


compVerify() {
    # A Windows module whose name is COMM (USER imports it by that name).
    [ "$(head -c 2 "$compDir/kpcomm.drv")" = "MZ" ] && LC_ALL=C grep -q -a 'KPCOMM' "$compDir/kpcomm.drv"
}


compEnv() {
    envVar KPCOMM_DRV "$compDir/kpcomm.drv"
}