#!/bin/sh
# Build script for xf86-input-mouse (autotools, Template A).
#
# Phase 2 Task 4 (M3). Ships a pre-generated `configure` - straight Template A,
# same shape as xf86-input-keyboard.
#
# Patches (patches/, applied below):
#   01-6892799-mouse-fd-persist.patch - reorder DEVICE_ON/DEVICE_OFF/
#     DEVICE_CLOSE in src/mouse.c so the /dev/mouse fd (+ Xisb buffer) is
#     opened once and closed only at DEVICE_CLOSE, surviving console mode
#     switches (VT enter/leave otherwise churns close()/open() on the VUID
#     stream on every switch). Equivalent of OI's 01-6892799.patch.
#
# Module install dir: same reasoning as xf86-input-keyboard - configure.ac
# computes inputdir=${moduledir}/input, so pass --with-xorg-module-dir
# pointing at .../xlibre-25/drivers so the result lands at
# .../xlibre-25/drivers/input, matching xorg-server.pc's input_drivers_dir.
set -e

# Resolve the port dir (holds patches/) BEFORE cd'ing into the extracted source.
PORTDIR=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)

cd "$SRCDIR"

# --- Hammerhead/illumos portability patches ---
for p in "$PORTDIR"/patches/*.patch; do
    [ -f "$p" ] || continue
    echo "==> Applying patch: $(basename "$p")"
    patch -p1 < "$p"
done

export PKG_CONFIG_PATH="$PREFIX/lib/pkgconfig:$PREFIX/share/pkgconfig:$PKG_CONFIG_PATH"
export CFLAGS="${CFLAGS} -I$PREFIX/include -D__EXTENSIONS__ -D_POSIX_PTHREAD_SEMANTICS"
export LDFLAGS="${LDFLAGS} -L$PREFIX/lib -R$PREFIX/lib"
# sun_mouse.c's CheckRelToAbs() calls libdevinfo's di_init()/di_walk_node()
# under HAVE_ABSOLUTE_MOUSE_SCALING (on by default), but neither
# configure.ac nor src/Makefile.am declares the libdevinfo dependency
# anywhere - a genuine upstream build-system gap for the Solaris/illumos
# path, not something a source patch fixes. automake's generated link line
# includes $(LIBS), so just set it before configure so it gets baked into
# mouse_drv.la's link command. Found at Xorg startup (ld.so.1 relocation
# error: symbol di_init not found), not at compile time - configure/gmake
# both succeed without this; only actually loading the .so into Xorg fails.
export LIBS="${LIBS} -ldevinfo"

# MANDATORY libtool fix (Template A) - piggyback hammerhead onto the
# kopensolaris arm in configure's dynamic-linker case block.
if [ -f configure ]; then
    sed -i -E 's/(kopensolaris\*-gnu)([^)]*\))/\1 | hammerhead*\2/' configure
fi

# OS-detection fix: the generated configure picks the source file to build
# via `case $host_os in ... solaris*) OS_MOUSE_NAME=sun ;; ... esac`, then
# src/Makefile.am uses @OS_MOUSE_NAME@_mouse.c. Our host_os is "hammerhead",
# not "solaris*", so OS_MOUSE_NAME is left empty and the build tries to
# compile a literal "_mouse.c" (missing file). Piggyback hammerhead* onto
# the solaris* arm so OS_MOUSE_NAME=sun selects sun_mouse.c (the VUID
# /dev/mouse backend this task is porting).
if [ -f configure ]; then
    sed -i -E 's/^  solaris\*\)$/  solaris* | hammerhead*)/' configure
fi

./configure \
    --prefix="$PREFIX" \
    --build="$BUILD_TRIPLE" \
    --host="$BUILD_TRIPLE" \
    --sysconfdir="$SYSCONFDIR" \
    --disable-static \
    --with-xorg-module-dir="$PREFIX/lib/xorg/modules/xlibre-25/drivers"

gmake -j${JOBS:-1}
gmake install DESTDIR="$PKGDIR"
# xf86-input-mouse - X.Org mouse input driver
#
# Phase 2 Task 4 (M3): the VUID /dev/mouse backend (src/mouse.c /
# src/sun_mouse.c) is already upstream. One local patch reorders the
# DEVICE_ON/DEVICE_OFF/DEVICE_CLOSE handling in src/mouse.c so the
# /dev/mouse fd is opened once (at first DEVICE_ON) and closed only at
# DEVICE_CLOSE, instead of being closed/reopened on every console mode
# switch (see patches/01-6892799-mouse-fd-persist.patch). That same patch
# also defines a local `sign()` macro fallback in src/mouse.c: this old
# (2019-era) driver relies on the X server's misc.h `sign()` macro, which
# the XLibre 25.1.8 SDK no longer provides - an SDK-drift build failure
# unrelated to the VUID port itself, found on first alpha10 build attempt.

[package]
name = "xf86-input-mouse"
version = "1.9.5"
release = 1
description = "X.Org mouse input driver (illumos /dev/mouse VUID backend)"
url = "https://gitlab.freedesktop.org/xorg/driver/xf86-input-mouse"
license = "MIT"
maintainer = "Chris Tusa <chris.tusa@leafscale.com>"
arch = "x86_64"

[dependencies]
runtime = ["xlibre-xserver-xorg"]
build = ["xlibre-xserver-xorg", "util-macros"]

[[source]]
file = "xf86-input-mouse-1.9.5.tar.gz"
urls = ["https://www.x.org/archive/individual/driver/xf86-input-mouse-1.9.5.tar.gz"]
checksum = "dc75c9e97f269b5edf80b3bb17ecac7f31c093cd27f74b5220b9d07ee63e0b25"
extract = true

[build]
parallel = true
--- a/src/mouse.c	2026-07-23 13:55:22.649216163 -0500
+++ b/src/mouse.c	2026-07-23 14:01:32.777853582 -0500
@@ -1772,6 +1772,26 @@
         break;
 
     case DEVICE_ON:
+        /*
+         * illumos/Solaris CR 6892799 fix: the VUID /dev/mouse stream
+         * (unlike a plain serial line) does not tolerate being closed
+         * and reopened across every console mode switch (X VT
+         * enter/leave toggles DEVICE_OFF/DEVICE_ON around each
+         * switch). Keep the fd + Xisb buffer alive once opened; only
+         * (re)open here on the very first DEVICE_ON, or if a prior
+         * open attempt failed. DEVICE_OFF no longer closes the fd -
+         * the real close now happens once, in DEVICE_CLOSE.
+         */
+        if (pInfo->fd != -1) {
+            /* Already open from a previous DEVICE_ON - just re-enable. */
+            xf86FlushInput(pInfo->fd);
+            xf86AddEnabledDevice(pInfo);
+            if (pMse->emulate3Buttons || pMse->emulate3ButtonsSoft) {
+                RegisterBlockAndWakeupHandlers (MouseBlockHandler,
+                                                MouseWakeupHandler,
+                                                (pointer) pInfo);
+            }
+        } else {
         pInfo->fd = xf86OpenSerial(pInfo->options);
         if (pInfo->fd == -1)
             xf86Msg(X_WARNING, "%s: cannot open input device\n", pInfo->name);
@@ -1820,6 +1840,7 @@
                 }
             }
         }
+        }
         pMse->lastButtons = 0;
         pMse->lastMappedButtons = 0;
         pMse->emulateState = 0;
@@ -1832,12 +1853,11 @@
     case DEVICE_OFF:
         if (pInfo->fd != -1) {
             xf86RemoveEnabledDevice(pInfo);
-            if (pMse->buffer) {
-                XisbFree(pMse->buffer);
-                pMse->buffer = NULL;
-            }
-            xf86CloseSerial(pInfo->fd);
-            pInfo->fd = -1;
+            /*
+             * 6892799: do NOT close/free the buffer or fd here - the
+             * VUID /dev/mouse stream must survive the mode switch.
+             * Actual teardown is deferred to DEVICE_CLOSE.
+             */
             if (pMse->emulate3Buttons || pMse->emulate3ButtonsSoft)
             {
                 RemoveBlockAndWakeupHandlers (MouseBlockHandler,
@@ -1848,6 +1868,16 @@
         device->public.on = FALSE;
         break;
     case DEVICE_CLOSE:
+        /* 6892799: the fd/buffer were kept open across DEVICE_OFF/ON
+         * cycles; do the real close here, once, at final teardown. */
+        if (pInfo->fd != -1) {
+            if (pMse->buffer) {
+                XisbFree(pMse->buffer);
+                pMse->buffer = NULL;
+            }
+            xf86CloseSerial(pInfo->fd);
+            pInfo->fd = -1;
+        }
         free(pMse->mousePriv);
         pMse->mousePriv = NULL;
         break;
@@ -3738,6 +3768,16 @@
 #define VAL_THRESHOLD 40
 
 /*
+ * SDK-drift compat fix: mouse.c relies on the X server's misc.h `sign()`
+ * macro, which the XLibre 25.1.8 SDK this port builds against no longer
+ * provides (dropped upstream). Define the historical semantics locally if
+ * it is not already defined by the SDK.
+ */
+#ifndef sign
+#define sign(x) ((x) > 0 ? 1 : ((x) < 0 ? -1 : 0))
+#endif
+
+/*
  * checkForErraticMovements() -- check if mouse 'jumps around'.
  */
 static void