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input: fixes for ui input code and ps/2 keyboard (mostly sysrq key)

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Merge remote-tracking branch 'remotes/kraxel/tags/input-20171023-pull-request' into staging

input: fixes for ui input code and ps/2 keyboard (mostly sysrq key)

# gpg: Signature made Mon 23 Oct 2017 10:19:22 BST
# gpg:                using RSA key 0x4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/input-20171023-pull-request:
  ui: pull in latest keycodemapdb
  ui: normalize the 'sysrq' key into the 'print' key
  ps2: fix scancodes sent for Ctrl+Pause key combination
  ps2: fix scancodess sent for Pause key in AT set 1
  ps2: fix scancodes sent for Shift/Ctrl+Print key combination
  ps2: fix scancodes sent for Alt-Print key combination (aka SysRq)
  ui: use correct union field for key number
  ui: fix crash with sendkey and raw key numbers
  input: use hex in ps2 keycode trace events

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2017-10-24 16:55:56 +01:00
commit 328f6f79e9
6 changed files with 201 additions and 39 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

207
hw/input/ps2.c
View File

@ -78,6 +78,14 @@
#define PS2_QUEUE_SIZE 16 /* Buffer size required by PS/2 protocol */
/* Bits for 'modifiers' field in PS2KbdState */
#define MOD_CTRL_L (1 << 0)
#define MOD_SHIFT_L (1 << 1)
#define MOD_ALT_L (1 << 2)
#define MOD_CTRL_R (1 << 3)
#define MOD_SHIFT_R (1 << 4)
#define MOD_ALT_R (1 << 5)
typedef struct {
/* Keep the data array 256 bytes long, which compatibility
with older qemu versions. */
@ -99,6 +107,7 @@ typedef struct {
int scancode_set; /* 1=XT, 2=AT, 3=PS/2 */
int ledstate;
bool need_high_bit;
unsigned int modifiers; /* bitmask of MOD_* constants above */
} PS2KbdState;
typedef struct {
@ -545,6 +554,26 @@ static uint8_t translate_table[256] = {
0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff,
};
static unsigned int ps2_modifier_bit(QKeyCode key)
{
switch (key) {
case Q_KEY_CODE_CTRL:
return MOD_CTRL_L;
case Q_KEY_CODE_CTRL_R:
return MOD_CTRL_R;
case Q_KEY_CODE_SHIFT:
return MOD_SHIFT_L;
case Q_KEY_CODE_SHIFT_R:
return MOD_SHIFT_R;
case Q_KEY_CODE_ALT:
return MOD_ALT_L;
case Q_KEY_CODE_ALT_R:
return MOD_ALT_R;
default:
return 0;
}
}
static void ps2_reset_queue(PS2State *s)
{
PS2Queue *q = &s->queue;
@ -596,32 +625,85 @@ static void ps2_keyboard_event(DeviceState *dev, QemuConsole *src,
InputKeyEvent *key = evt->u.key.data;
int qcode;
uint16_t keycode;
int mod;
qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER);
assert(evt->type == INPUT_EVENT_KIND_KEY);
qcode = qemu_input_key_value_to_qcode(key->key);
mod = ps2_modifier_bit(qcode);
trace_ps2_keyboard_event(s, qcode, key->down, mod, s->modifiers);
if (key->down) {
s->modifiers |= mod;
} else {
s->modifiers &= ~mod;
}
if (s->scancode_set == 1) {
if (qcode == Q_KEY_CODE_PAUSE) {
if (key->down) {
ps2_put_keycode(s, 0xe1);
ps2_put_keycode(s, 0x1d);
ps2_put_keycode(s, 0x45);
ps2_put_keycode(s, 0x91);
ps2_put_keycode(s, 0x9d);
ps2_put_keycode(s, 0xc5);
if (s->modifiers & (MOD_CTRL_L | MOD_CTRL_R)) {
if (key->down) {
ps2_put_keycode(s, 0xe0);
ps2_put_keycode(s, 0x46);
ps2_put_keycode(s, 0xe0);
ps2_put_keycode(s, 0xc6);
}
} else {
if (key->down) {
ps2_put_keycode(s, 0xe1);
ps2_put_keycode(s, 0x1d);
ps2_put_keycode(s, 0x45);
ps2_put_keycode(s, 0xe1);
ps2_put_keycode(s, 0x9d);
ps2_put_keycode(s, 0xc5);
}
}
} else if (qcode == Q_KEY_CODE_PRINT) {
if (key->down) {
ps2_put_keycode(s, 0xe0);
ps2_put_keycode(s, 0x2a);
ps2_put_keycode(s, 0xe0);
ps2_put_keycode(s, 0x37);
if (s->modifiers & MOD_ALT_L) {
if (key->down) {
ps2_put_keycode(s, 0xb8);
ps2_put_keycode(s, 0x38);
ps2_put_keycode(s, 0x54);
} else {
ps2_put_keycode(s, 0xd4);
ps2_put_keycode(s, 0xb8);
ps2_put_keycode(s, 0x38);
}
} else if (s->modifiers & MOD_ALT_R) {
if (key->down) {
ps2_put_keycode(s, 0xe0);
ps2_put_keycode(s, 0xb8);
ps2_put_keycode(s, 0xe0);
ps2_put_keycode(s, 0x38);
ps2_put_keycode(s, 0x54);
} else {
ps2_put_keycode(s, 0xd4);
ps2_put_keycode(s, 0xe0);
ps2_put_keycode(s, 0xb8);
ps2_put_keycode(s, 0xe0);
ps2_put_keycode(s, 0x38);
}
} else if (s->modifiers & (MOD_SHIFT_L | MOD_CTRL_L |
MOD_SHIFT_R | MOD_CTRL_R)) {
if (key->down) {
ps2_put_keycode(s, 0xe0);
ps2_put_keycode(s, 0x37);
} else {
ps2_put_keycode(s, 0xe0);
ps2_put_keycode(s, 0xb7);
}
} else {
ps2_put_keycode(s, 0xe0);
ps2_put_keycode(s, 0xb7);
ps2_put_keycode(s, 0xe0);
ps2_put_keycode(s, 0xaa);
if (key->down) {
ps2_put_keycode(s, 0xe0);
ps2_put_keycode(s, 0x2a);
ps2_put_keycode(s, 0xe0);
ps2_put_keycode(s, 0x37);
} else {
ps2_put_keycode(s, 0xe0);
ps2_put_keycode(s, 0xb7);
ps2_put_keycode(s, 0xe0);
ps2_put_keycode(s, 0xaa);
}
}
} else {
keycode = qcode_to_keycode_set1[qcode];
@ -640,29 +722,81 @@ static void ps2_keyboard_event(DeviceState *dev, QemuConsole *src,
}
} else if (s->scancode_set == 2) {
if (qcode == Q_KEY_CODE_PAUSE) {
if (key->down) {
ps2_put_keycode(s, 0xe1);
ps2_put_keycode(s, 0x14);
ps2_put_keycode(s, 0x77);
ps2_put_keycode(s, 0xe1);
ps2_put_keycode(s, 0xf0);
ps2_put_keycode(s, 0x14);
ps2_put_keycode(s, 0xf0);
ps2_put_keycode(s, 0x77);
if (s->modifiers & (MOD_CTRL_L | MOD_CTRL_R)) {
if (key->down) {
ps2_put_keycode(s, 0xe0);
ps2_put_keycode(s, 0x7e);
ps2_put_keycode(s, 0xe0);
ps2_put_keycode(s, 0xf0);
ps2_put_keycode(s, 0x7e);
}
} else {
if (key->down) {
ps2_put_keycode(s, 0xe1);
ps2_put_keycode(s, 0x14);
ps2_put_keycode(s, 0x77);
ps2_put_keycode(s, 0xe1);
ps2_put_keycode(s, 0xf0);
ps2_put_keycode(s, 0x14);
ps2_put_keycode(s, 0xf0);
ps2_put_keycode(s, 0x77);
}
}
} else if (qcode == Q_KEY_CODE_PRINT) {
if (key->down) {
ps2_put_keycode(s, 0xe0);
ps2_put_keycode(s, 0x12);
ps2_put_keycode(s, 0xe0);
ps2_put_keycode(s, 0x7c);
if (s->modifiers & MOD_ALT_L) {
if (key->down) {
ps2_put_keycode(s, 0xf0);
ps2_put_keycode(s, 0x11);
ps2_put_keycode(s, 0x11);
ps2_put_keycode(s, 0x84);
} else {
ps2_put_keycode(s, 0xf0);
ps2_put_keycode(s, 0x84);
ps2_put_keycode(s, 0xf0);
ps2_put_keycode(s, 0x11);
ps2_put_keycode(s, 0x11);
}
} else if (s->modifiers & MOD_ALT_R) {
if (key->down) {
ps2_put_keycode(s, 0xe0);
ps2_put_keycode(s, 0xf0);
ps2_put_keycode(s, 0x11);
ps2_put_keycode(s, 0xe0);
ps2_put_keycode(s, 0x11);
ps2_put_keycode(s, 0x84);
} else {
ps2_put_keycode(s, 0xf0);
ps2_put_keycode(s, 0x84);
ps2_put_keycode(s, 0xe0);
ps2_put_keycode(s, 0xf0);
ps2_put_keycode(s, 0x11);
ps2_put_keycode(s, 0xe0);
ps2_put_keycode(s, 0x11);
}
} else if (s->modifiers & (MOD_SHIFT_L | MOD_CTRL_L |
MOD_SHIFT_R | MOD_CTRL_R)) {
if (key->down) {
ps2_put_keycode(s, 0xe0);
ps2_put_keycode(s, 0x7c);
} else {
ps2_put_keycode(s, 0xe0);
ps2_put_keycode(s, 0xf0);
ps2_put_keycode(s, 0x7c);
}
} else {
ps2_put_keycode(s, 0xe0);
ps2_put_keycode(s, 0xf0);
ps2_put_keycode(s, 0x7c);
ps2_put_keycode(s, 0xe0);
ps2_put_keycode(s, 0xf0);
ps2_put_keycode(s, 0x12);
if (key->down) {
ps2_put_keycode(s, 0xe0);
ps2_put_keycode(s, 0x12);
ps2_put_keycode(s, 0xe0);
ps2_put_keycode(s, 0x7c);
} else {
ps2_put_keycode(s, 0xe0);
ps2_put_keycode(s, 0xf0);
ps2_put_keycode(s, 0x7c);
ps2_put_keycode(s, 0xe0);
ps2_put_keycode(s, 0xf0);
ps2_put_keycode(s, 0x12);
}
}
} else {
keycode = qcode_to_keycode_set2[qcode];
@ -1125,6 +1259,7 @@ static void ps2_kbd_reset(void *opaque)
s->scan_enabled = 0;
s->translate = 0;
s->scancode_set = 2;
s->modifiers = 0;
}
static void ps2_mouse_reset(void *opaque)

3
hw/input/trace-events
View File

@ -1,7 +1,8 @@
# See docs/devel/tracing.txt for syntax documentation.
# hw/input/ps2.c
ps2_put_keycode(void *opaque, int keycode) "%p keycode %d"
ps2_put_keycode(void *opaque, int keycode) "%p keycode 0x%02x"
ps2_keyboard_event(void *opaque, int qcode, int down, unsigned int modifier, unsigned int modifiers) "%p qcode %d down %d modifier 0x%x modifiers 0x%x"
ps2_read_data(void *opaque) "%p"
ps2_set_ledstate(void *s, int ledstate) "%p ledstate %d"
ps2_reset_keyboard(void *s) "%p"

7
qapi/ui.json
View File

@ -748,6 +748,13 @@
# @ac_bookmarks: since 2.10
# altgr, altgr_r: dropped in 2.10
#
# 'sysrq' was mistakenly added to hack around the fact that
# the ps2 driver was not generating correct scancodes sequences
# when 'alt+print' was pressed. This flaw is now fixed and the
# 'sysrq' key serves no further purpose. Any further use of
# 'sysrq' will be transparently changed to 'print', so they
# are effectively synonyms.
#
# Since: 1.3.0
#
##

5
ui/input-legacy.c
View File

@ -76,6 +76,11 @@ static KeyValue *copy_key_value(KeyValue *src)
{
KeyValue *dst = g_new(KeyValue, 1);
memcpy(dst, src, sizeof(*src));
if (dst->type == KEY_VALUE_KIND_NUMBER) {
QKeyCode code = qemu_input_key_number_to_qcode(dst->u.number.data);
dst->type = KEY_VALUE_KIND_QCODE;
dst->u.qcode.data = code;
}
return dst;
}

16
ui/input.c
View File

@ -162,7 +162,7 @@ void qmp_input_send_event(bool has_device, const char *device,
if (evt->type == INPUT_EVENT_KIND_KEY &&
evt->u.key.data->key->type == KEY_VALUE_KIND_NUMBER) {
KeyValue *key = evt->u.key.data->key;
QKeyCode code = qemu_input_key_number_to_qcode(key->u.qcode.data);
QKeyCode code = qemu_input_key_number_to_qcode(key->u.number.data);
qemu_input_event_send_key_qcode(con, code, evt->u.key.data->down);
} else {
qemu_input_event_send(con, evt);
@ -353,6 +353,20 @@ void qemu_input_event_send(QemuConsole *src, InputEvent *evt)
assert(!(evt->type == INPUT_EVENT_KIND_KEY &&
evt->u.key.data->key->type == KEY_VALUE_KIND_NUMBER));
/*
* 'sysrq' was mistakenly added to hack around the fact that
* the ps2 driver was not generating correct scancodes sequences
* when 'alt+print' was pressed. This flaw is now fixed and the
* 'sysrq' key serves no further purpose. We normalize it to
* 'print', so that downstream receivers of the event don't
* neeed to deal with this mistake
*/
if (evt->type == INPUT_EVENT_KIND_KEY &&
evt->u.key.data->key->u.qcode.data == Q_KEY_CODE_SYSRQ) {
evt->u.key.data->key->u.qcode.data = Q_KEY_CODE_PRINT;
}
if (!runstate_is_running() && !runstate_check(RUN_STATE_SUSPENDED)) {
return;
}

2
ui/keycodemapdb

@ -1 +1 @@
Subproject commit 56ce5650d2c6ea216b4580df44b9a6dd3bc92c3b
Subproject commit 10739aa26051a5d49d88132604539d3ed085e72e