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tools: add qemu-keymap
qemu-keymap generates qemu reverse keymaps from xkb keymaps, which can be used with the qemu "-k" command line switch. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Message-id: 20171005153330.19210-2-kraxel@redhat.com
This commit is contained in:
Gerd Hoffmann
parent
3ad35e7a9b
commit
6a021536e2
5
Makefile
5
Makefile
@ -418,6 +418,8 @@ qemu-io$(EXESUF): qemu-io.o $(block-obj-y) $(crypto-obj-y) $(io-obj-y) $(qom-obj
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qemu-bridge-helper$(EXESUF): qemu-bridge-helper.o $(COMMON_LDADDS)
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qemu-keymap$(EXESUF): qemu-keymap.o ui/input-keymap.o $(COMMON_LDADDS)
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fsdev/virtfs-proxy-helper$(EXESUF): fsdev/virtfs-proxy-helper.o fsdev/9p-marshal.o fsdev/9p-iov-marshal.o $(COMMON_LDADDS)
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fsdev/virtfs-proxy-helper$(EXESUF): LIBS += -lcap
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@ -432,6 +434,9 @@ qemu-img-cmds.h: $(SRC_PATH)/qemu-img-cmds.hx $(SRC_PATH)/scripts/hxtool
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qemu-ga$(EXESUF): LIBS = $(LIBS_QGA)
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qemu-ga$(EXESUF): QEMU_CFLAGS += -I qga/qapi-generated
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qemu-keymap$(EXESUF): LIBS += $(XKBCOMMON_LIBS)
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qemu-keymap$(EXESUF): QEMU_CFLAGS += $(XKBCOMMON_CFLAGS)
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gen-out-type = $(subst .,-,$(suffix $@))
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qapi-py = $(SRC_PATH)/scripts/qapi.py $(SRC_PATH)/scripts/ordereddict.py
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23
configure
vendored
23
configure
vendored
@ -304,6 +304,7 @@ vde=""
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vnc_sasl=""
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vnc_jpeg=""
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vnc_png=""
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xkbcommon=""
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xen=""
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xen_ctrl_version=""
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xen_pv_domain_build="no"
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@ -2907,6 +2908,21 @@ EOF
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fi
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fi
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##########################################
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# xkbcommon probe
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if test "$xkbcommon" != "no" ; then
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if $pkg_config xkbcommon --exists; then
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xkbcommon_cflags=$($pkg_config xkbcommon --cflags)
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xkbcommon_libs=$($pkg_config xkbcommon --libs)
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xkbcommon=yes
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else
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if test "$xkbcommon" = "yes" ; then
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feature_not_found "xkbcommon" "Install libxkbcommon-devel"
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fi
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xkbcommon=no
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fi
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fi
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##########################################
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# fnmatch() probe, used for ACL routines
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fnmatch="no"
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@ -5107,6 +5123,9 @@ if test "$softmmu" = yes ; then
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mpath=no
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fi
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fi
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if test "$xkbcommon" = "yes"; then
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tools="qemu-keymap\$(EXESUF) $tools"
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fi
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# Probe for guest agent support/options
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@ -5606,6 +5625,10 @@ fi
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if test "$vnc_png" = "yes" ; then
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echo "CONFIG_VNC_PNG=y" >> $config_host_mak
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fi
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if test "$xkbcommon" = "yes" ; then
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echo "XKBCOMMON_CFLAGS=$xkbcommon_cflags" >> $config_host_mak
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echo "XKBCOMMON_LIBS=$xkbcommon_libs" >> $config_host_mak
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fi
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if test "$fnmatch" = "yes" ; then
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echo "CONFIG_FNMATCH=y" >> $config_host_mak
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fi
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258
qemu-keymap.c
Normal file
258
qemu-keymap.c
Normal file
@ -0,0 +1,258 @@
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/*
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* QEMU keymap utility
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*
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* Copyright Red Hat, Inc. 2017
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*
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* Authors:
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* Gerd Hoffmann <kraxel@redhat.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*/
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#include "qemu/osdep.h"
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#include "qemu-common.h"
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#include "qapi-types.h"
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#include "qemu/notify.h"
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#include "ui/input.h"
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#include <xkbcommon/xkbcommon.h>
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struct xkb_rule_names names = {
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.rules = NULL,
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.model = "pc105",
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.layout = "us",
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.variant = NULL,
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.options = NULL,
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};
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static xkb_mod_mask_t shift;
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static xkb_mod_mask_t ctrl;
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static xkb_mod_mask_t altgr;
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static xkb_mod_mask_t numlock;
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static FILE *outfile;
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/* ------------------------------------------------------------------------ */
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static uint32_t qcode_to_number(uint32_t qcode)
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{
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KeyValue keyvalue;
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uint32_t number;
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keyvalue.type = KEY_VALUE_KIND_QCODE;
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keyvalue.u.qcode.data = qcode;
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number = qemu_input_key_value_to_number(&keyvalue);
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assert(number != 0);
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return number;
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}
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static void print_sym(xkb_keysym_t sym, uint32_t qcode, const char *mod)
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{
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char name[64];
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if (sym == XKB_KEY_NoSymbol) {
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return;
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}
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xkb_keysym_get_name(sym, name, sizeof(name));
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/* TODO: make ui/keymap.c parser accept QKeyCode names */
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fprintf(outfile, "%s 0x%02x%s\n", name, qcode_to_number(qcode), mod);
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}
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static void walk_map(struct xkb_keymap *map, xkb_keycode_t code, void *data)
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{
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struct xkb_state *state = data;
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xkb_keysym_t kbase, knumlock, kshift, kaltgr, kaltgrshift;
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uint32_t evdev, qcode;
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char name[64];
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fprintf(outfile, "\n");
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/*
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* map xkb keycode -> QKeyCode
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*
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* xkb keycode is linux evdev shifted by 8
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*/
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evdev = code - 8;
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qcode = qemu_input_linux_to_qcode(evdev);
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if (qcode == Q_KEY_CODE_UNMAPPED) {
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xkb_state_update_mask(state, 0, 0, 0, 0, 0, 0);
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kbase = xkb_state_key_get_one_sym(state, code);
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xkb_keysym_get_name(kbase, name, sizeof(name));
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fprintf(outfile, "# evdev %d (0x%x): no evdev -> QKeyCode mapping"
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" (xkb keysym %s)\n", evdev, evdev, name);
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return;
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}
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fprintf(outfile, "# evdev %d (0x%x), QKeyCode \"%s\", number 0x%x\n",
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evdev, evdev,
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QKeyCode_lookup.array[qcode],
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qcode_to_number(qcode));
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/*
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* check which modifier states generate which keysyms
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*/
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xkb_state_update_mask(state, 0, 0, 0, 0, 0, 0);
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kbase = xkb_state_key_get_one_sym(state, code);
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print_sym(kbase, qcode, "");
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xkb_state_update_mask(state, 0, 0, numlock, 0, 0, 0);
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knumlock = xkb_state_key_get_one_sym(state, code);
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if (kbase != knumlock) {
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print_sym(knumlock, qcode, " numlock");
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}
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xkb_state_update_mask(state, shift, 0, 0, 0, 0, 0);
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kshift = xkb_state_key_get_one_sym(state, code);
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if (kbase != kshift && knumlock != kshift) {
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print_sym(kshift, qcode, " shift");
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}
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xkb_state_update_mask(state, altgr, 0, 0, 0, 0, 0);
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kaltgr = xkb_state_key_get_one_sym(state, code);
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if (kbase != kaltgr) {
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print_sym(kaltgr, qcode, " altgr");
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}
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xkb_state_update_mask(state, altgr | shift, 0, 0, 0, 0, 0);
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kaltgrshift = xkb_state_key_get_one_sym(state, code);
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if (kshift != kaltgrshift && kaltgr != kaltgrshift) {
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print_sym(kaltgrshift, qcode, " shift altgr");
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}
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return;
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}
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static void usage(FILE *out)
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{
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fprintf(out,
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"\n"
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"This tool generates qemu reverse keymaps from xkb keymaps,\n"
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"which can be used with the qemu \"-k\" command line switch.\n"
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"\n"
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"usage: qemu-keymap <options>\n"
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"options:\n"
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" -h print this text\n"
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" -f <file> set output file (default: stdout)\n"
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" -m <model> set kbd model (default: %s)\n"
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" -l <layout> set kbd layout (default: %s)\n"
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" -v <variant> set kbd variant (default: %s)\n"
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" -o <options> set kbd options (default: %s)\n"
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"\n",
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names.model, names.layout,
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names.variant ?: "-",
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names.options ?: "-");
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}
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int main(int argc, char *argv[])
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{
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struct xkb_context *ctx;
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struct xkb_keymap *map;
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struct xkb_state *state;
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xkb_mod_index_t mod, mods;
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int rc;
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for (;;) {
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rc = getopt(argc, argv, "hm:l:v:o:f:");
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if (rc == -1) {
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break;
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}
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switch (rc) {
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case 'm':
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names.model = optarg;
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break;
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case 'l':
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names.layout = optarg;
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break;
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case 'v':
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names.variant = optarg;
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break;
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case 'o':
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names.options = optarg;
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break;
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case 'f':
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outfile = fopen(optarg, "w");
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if (outfile == NULL) {
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fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
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exit(1);
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}
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break;
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case 'h':
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usage(stdout);
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exit(0);
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default:
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usage(stderr);
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exit(1);
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}
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}
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if (outfile == NULL) {
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outfile = stdout;
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}
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fprintf(outfile,
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"#\n"
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"# generated by qemu-keymap\n"
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"# model : %s\n"
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"# layout : %s\n"
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"# variant : %s\n"
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"# options : %s\n"
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"\n",
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names.model, names.layout,
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names.variant ?: "-",
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names.options ?: "-");
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ctx = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
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map = xkb_keymap_new_from_names(ctx, &names, XKB_KEYMAP_COMPILE_NO_FLAGS);
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if (!map) {
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/* libxkbcommon prints error */
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exit(1);
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}
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fprintf(outfile, "# name: \"%s\"\n\n",
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xkb_keymap_layout_get_name(map, 0));
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fprintf(outfile, "# modifiers\n");
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mods = xkb_keymap_num_mods(map);
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for (mod = 0; mod < mods; mod++) {
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fprintf(outfile, "# %2d: %s\n",
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mod, xkb_keymap_mod_get_name(map, mod));
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}
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mod = xkb_keymap_mod_get_index(map, "Shift");
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shift = (1 << mod);
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mod = xkb_keymap_mod_get_index(map, "Control");
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ctrl = (1 << mod);
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mod = xkb_keymap_mod_get_index(map, "AltGr");
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altgr = (1 << mod);
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mod = xkb_keymap_mod_get_index(map, "NumLock");
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numlock = (1 << mod);
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state = xkb_state_new(map);
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xkb_keymap_key_for_each(map, walk_map, state);
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/* add quirks */
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fprintf(outfile,
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"\n"
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"#\n"
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"# quirks section start\n"
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"#\n"
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"# Sometimes multiple keysyms map to the same keycodes.\n"
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"# The keycode -> keysym lookup finds only one of the\n"
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"# keysyms. So append them here.\n"
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"#\n"
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"\n");
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print_sym(XKB_KEY_Print, Q_KEY_CODE_SYSRQ, "");
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print_sym(XKB_KEY_Sys_Req, Q_KEY_CODE_SYSRQ, "");
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print_sym(XKB_KEY_Execute, Q_KEY_CODE_SYSRQ, "");
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print_sym(XKB_KEY_KP_Decimal, Q_KEY_CODE_KP_DECIMAL, " numlock");
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print_sym(XKB_KEY_KP_Separator, Q_KEY_CODE_KP_DECIMAL, " numlock");
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print_sym(XKB_KEY_Alt_R, Q_KEY_CODE_ALT_R, "");
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print_sym(XKB_KEY_ISO_Level3_Shift, Q_KEY_CODE_ALT_R, "");
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print_sym(XKB_KEY_Mode_switch, Q_KEY_CODE_ALT_R, "");
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fprintf(outfile,
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"\n"
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"# quirks section end\n");
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exit(0);
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}
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