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qemu-patch-raspberry4/hw/input/adb-kbd.c
Markus Armbruster d5938f29fe Clean up inclusion of sysemu/sysemu.h 
In my "build everything" tree, changing sysemu/sysemu.h triggers a
recompile of some 5400 out of 6600 objects (not counting tests and
objects that don't depend on qemu/osdep.h).

Almost a third of its inclusions are actually superfluous.  Delete
them.  Downgrade two more to qapi/qapi-types-run-state.h, and move one
from char/serial.h to char/serial.c.

hw/semihosting/config.c, monitor/monitor.c, qdev-monitor.c, and
stubs/semihost.c define variables declared in sysemu/sysemu.h without
including it.  The compiler is cool with that, but include it anyway.

This doesn't reduce actual use much, as it's still included into
widely included headers.  The next commit will tackle that.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20190812052359.30071-27-armbru@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
2019-08-16 13:31:53 +02:00

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/*
* QEMU ADB keyboard support
*
* Copyright (c) 2004 Fabrice Bellard
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "qemu/osdep.h"
#include "hw/input/adb.h"
#include "migration/vmstate.h"
#include "qemu/module.h"
#include "ui/input.h"
#include "hw/input/adb-keys.h"
#include "adb-internal.h"
#include "trace.h"
#define ADB_KEYBOARD(obj) OBJECT_CHECK(KBDState, (obj), TYPE_ADB_KEYBOARD)
typedef struct KBDState {
/*< private >*/
ADBDevice parent_obj;
/*< public >*/
uint8_t data[128];
int rptr, wptr, count;
} KBDState;
#define ADB_KEYBOARD_CLASS(class) \
OBJECT_CLASS_CHECK(ADBKeyboardClass, (class), TYPE_ADB_KEYBOARD)
#define ADB_KEYBOARD_GET_CLASS(obj) \
OBJECT_GET_CLASS(ADBKeyboardClass, (obj), TYPE_ADB_KEYBOARD)
typedef struct ADBKeyboardClass {
/*< private >*/
ADBDeviceClass parent_class;
/*< public >*/
DeviceRealize parent_realize;
} ADBKeyboardClass;
/* The adb keyboard doesn't have every key imaginable */
#define NO_KEY 0xff
int qcode_to_adb_keycode[] = {
/* Make sure future additions are automatically set to NO_KEY */
[0 ... 0xff] = NO_KEY,
[Q_KEY_CODE_SHIFT] = ADB_KEY_LEFT_SHIFT,
[Q_KEY_CODE_SHIFT_R] = ADB_KEY_RIGHT_SHIFT,
[Q_KEY_CODE_ALT] = ADB_KEY_LEFT_OPTION,
[Q_KEY_CODE_ALT_R] = ADB_KEY_RIGHT_OPTION,
[Q_KEY_CODE_CTRL] = ADB_KEY_LEFT_CONTROL,
[Q_KEY_CODE_CTRL_R] = ADB_KEY_RIGHT_CONTROL,
[Q_KEY_CODE_META_L] = ADB_KEY_COMMAND,
[Q_KEY_CODE_META_R] = ADB_KEY_COMMAND,
[Q_KEY_CODE_SPC] = ADB_KEY_SPACEBAR,
[Q_KEY_CODE_ESC] = ADB_KEY_ESC,
[Q_KEY_CODE_1] = ADB_KEY_1,
[Q_KEY_CODE_2] = ADB_KEY_2,
[Q_KEY_CODE_3] = ADB_KEY_3,
[Q_KEY_CODE_4] = ADB_KEY_4,
[Q_KEY_CODE_5] = ADB_KEY_5,
[Q_KEY_CODE_6] = ADB_KEY_6,
[Q_KEY_CODE_7] = ADB_KEY_7,
[Q_KEY_CODE_8] = ADB_KEY_8,
[Q_KEY_CODE_9] = ADB_KEY_9,
[Q_KEY_CODE_0] = ADB_KEY_0,
[Q_KEY_CODE_MINUS] = ADB_KEY_MINUS,
[Q_KEY_CODE_EQUAL] = ADB_KEY_EQUAL,
[Q_KEY_CODE_BACKSPACE] = ADB_KEY_DELETE,
[Q_KEY_CODE_TAB] = ADB_KEY_TAB,
[Q_KEY_CODE_Q] = ADB_KEY_Q,
[Q_KEY_CODE_W] = ADB_KEY_W,
[Q_KEY_CODE_E] = ADB_KEY_E,
[Q_KEY_CODE_R] = ADB_KEY_R,
[Q_KEY_CODE_T] = ADB_KEY_T,
[Q_KEY_CODE_Y] = ADB_KEY_Y,
[Q_KEY_CODE_U] = ADB_KEY_U,
[Q_KEY_CODE_I] = ADB_KEY_I,
[Q_KEY_CODE_O] = ADB_KEY_O,
[Q_KEY_CODE_P] = ADB_KEY_P,
[Q_KEY_CODE_BRACKET_LEFT] = ADB_KEY_LEFT_BRACKET,
[Q_KEY_CODE_BRACKET_RIGHT] = ADB_KEY_RIGHT_BRACKET,
[Q_KEY_CODE_RET] = ADB_KEY_RETURN,
[Q_KEY_CODE_A] = ADB_KEY_A,
[Q_KEY_CODE_S] = ADB_KEY_S,
[Q_KEY_CODE_D] = ADB_KEY_D,
[Q_KEY_CODE_F] = ADB_KEY_F,
[Q_KEY_CODE_G] = ADB_KEY_G,
[Q_KEY_CODE_H] = ADB_KEY_H,
[Q_KEY_CODE_J] = ADB_KEY_J,
[Q_KEY_CODE_K] = ADB_KEY_K,
[Q_KEY_CODE_L] = ADB_KEY_L,
[Q_KEY_CODE_SEMICOLON] = ADB_KEY_SEMICOLON,
[Q_KEY_CODE_APOSTROPHE] = ADB_KEY_APOSTROPHE,
[Q_KEY_CODE_GRAVE_ACCENT] = ADB_KEY_GRAVE_ACCENT,
[Q_KEY_CODE_BACKSLASH] = ADB_KEY_BACKSLASH,
[Q_KEY_CODE_Z] = ADB_KEY_Z,
[Q_KEY_CODE_X] = ADB_KEY_X,
[Q_KEY_CODE_C] = ADB_KEY_C,
[Q_KEY_CODE_V] = ADB_KEY_V,
[Q_KEY_CODE_B] = ADB_KEY_B,
[Q_KEY_CODE_N] = ADB_KEY_N,
[Q_KEY_CODE_M] = ADB_KEY_M,
[Q_KEY_CODE_COMMA] = ADB_KEY_COMMA,
[Q_KEY_CODE_DOT] = ADB_KEY_PERIOD,
[Q_KEY_CODE_SLASH] = ADB_KEY_FORWARD_SLASH,
[Q_KEY_CODE_ASTERISK] = ADB_KEY_KP_MULTIPLY,
[Q_KEY_CODE_CAPS_LOCK] = ADB_KEY_CAPS_LOCK,
[Q_KEY_CODE_F1] = ADB_KEY_F1,
[Q_KEY_CODE_F2] = ADB_KEY_F2,
[Q_KEY_CODE_F3] = ADB_KEY_F3,
[Q_KEY_CODE_F4] = ADB_KEY_F4,
[Q_KEY_CODE_F5] = ADB_KEY_F5,
[Q_KEY_CODE_F6] = ADB_KEY_F6,
[Q_KEY_CODE_F7] = ADB_KEY_F7,
[Q_KEY_CODE_F8] = ADB_KEY_F8,
[Q_KEY_CODE_F9] = ADB_KEY_F9,
[Q_KEY_CODE_F10] = ADB_KEY_F10,
[Q_KEY_CODE_F11] = ADB_KEY_F11,
[Q_KEY_CODE_F12] = ADB_KEY_F12,
[Q_KEY_CODE_PRINT] = ADB_KEY_F13,
[Q_KEY_CODE_SYSRQ] = ADB_KEY_F13,
[Q_KEY_CODE_SCROLL_LOCK] = ADB_KEY_F14,
[Q_KEY_CODE_PAUSE] = ADB_KEY_F15,
[Q_KEY_CODE_NUM_LOCK] = ADB_KEY_KP_CLEAR,
[Q_KEY_CODE_KP_EQUALS] = ADB_KEY_KP_EQUAL,
[Q_KEY_CODE_KP_DIVIDE] = ADB_KEY_KP_DIVIDE,
[Q_KEY_CODE_KP_MULTIPLY] = ADB_KEY_KP_MULTIPLY,
[Q_KEY_CODE_KP_SUBTRACT] = ADB_KEY_KP_SUBTRACT,
[Q_KEY_CODE_KP_ADD] = ADB_KEY_KP_PLUS,
[Q_KEY_CODE_KP_ENTER] = ADB_KEY_KP_ENTER,
[Q_KEY_CODE_KP_DECIMAL] = ADB_KEY_KP_PERIOD,
[Q_KEY_CODE_KP_0] = ADB_KEY_KP_0,
[Q_KEY_CODE_KP_1] = ADB_KEY_KP_1,
[Q_KEY_CODE_KP_2] = ADB_KEY_KP_2,
[Q_KEY_CODE_KP_3] = ADB_KEY_KP_3,
[Q_KEY_CODE_KP_4] = ADB_KEY_KP_4,
[Q_KEY_CODE_KP_5] = ADB_KEY_KP_5,
[Q_KEY_CODE_KP_6] = ADB_KEY_KP_6,
[Q_KEY_CODE_KP_7] = ADB_KEY_KP_7,
[Q_KEY_CODE_KP_8] = ADB_KEY_KP_8,
[Q_KEY_CODE_KP_9] = ADB_KEY_KP_9,
[Q_KEY_CODE_UP] = ADB_KEY_UP,
[Q_KEY_CODE_DOWN] = ADB_KEY_DOWN,
[Q_KEY_CODE_LEFT] = ADB_KEY_LEFT,
[Q_KEY_CODE_RIGHT] = ADB_KEY_RIGHT,
[Q_KEY_CODE_HELP] = ADB_KEY_HELP,
[Q_KEY_CODE_INSERT] = ADB_KEY_HELP,
[Q_KEY_CODE_DELETE] = ADB_KEY_FORWARD_DELETE,
[Q_KEY_CODE_HOME] = ADB_KEY_HOME,
[Q_KEY_CODE_END] = ADB_KEY_END,
[Q_KEY_CODE_PGUP] = ADB_KEY_PAGE_UP,
[Q_KEY_CODE_PGDN] = ADB_KEY_PAGE_DOWN,
[Q_KEY_CODE_POWER] = ADB_KEY_POWER
};
static void adb_kbd_put_keycode(void *opaque, int keycode)
{
KBDState *s = opaque;
if (s->count < sizeof(s->data)) {
s->data[s->wptr] = keycode;
if (++s->wptr == sizeof(s->data)) {
s->wptr = 0;
}
s->count++;
}
}
static int adb_kbd_poll(ADBDevice *d, uint8_t *obuf)
{
KBDState *s = ADB_KEYBOARD(d);
int keycode;
int olen;
olen = 0;
if (s->count == 0) {
return 0;
}
keycode = s->data[s->rptr];
s->rptr++;
if (s->rptr == sizeof(s->data)) {
s->rptr = 0;
}
s->count--;
/*
* The power key is the only two byte value key, so it is a special case.
* Since 0x7f is not a used keycode for ADB we overload it to indicate the
* power button when we're storing keycodes in our internal buffer, and
* expand it out to two bytes when we send to the guest.
*/
if (keycode == 0x7f) {
obuf[0] = 0x7f;
obuf[1] = 0x7f;
olen = 2;
} else {
obuf[0] = keycode;
/* NOTE: the power key key-up is the two byte sequence 0xff 0xff;
* otherwise we could in theory send a second keycode in the second
* byte, but choose not to bother.
*/
obuf[1] = 0xff;
olen = 2;
}
return olen;
}
static int adb_kbd_request(ADBDevice *d, uint8_t *obuf,
const uint8_t *buf, int len)
{
KBDState *s = ADB_KEYBOARD(d);
int cmd, reg, olen;
if ((buf[0] & 0x0f) == ADB_FLUSH) {
/* flush keyboard fifo */
s->wptr = s->rptr = s->count = 0;
return 0;
}
cmd = buf[0] & 0xc;
reg = buf[0] & 0x3;
olen = 0;
switch (cmd) {
case ADB_WRITEREG:
trace_adb_kbd_writereg(reg, buf[1]);
switch (reg) {
case 2:
/* LED status */
break;
case 3:
switch (buf[2]) {
case ADB_CMD_SELF_TEST:
break;
case ADB_CMD_CHANGE_ID:
case ADB_CMD_CHANGE_ID_AND_ACT:
case ADB_CMD_CHANGE_ID_AND_ENABLE:
d->devaddr = buf[1] & 0xf;
trace_adb_kbd_request_change_addr(d->devaddr);
break;
default:
if (!d->disable_direct_reg3_writes) {
d->devaddr = buf[1] & 0xf;
/* we support handlers:
* 1: Apple Standard Keyboard
* 2: Apple Extended Keyboard (LShift = RShift)
* 3: Apple Extended Keyboard (LShift != RShift)
*/
if (buf[2] == 1 || buf[2] == 2 || buf[2] == 3) {
d->handler = buf[2];
}
trace_adb_kbd_request_change_addr_and_handler(d->devaddr,
d->handler);
}
break;
}
}
break;
case ADB_READREG:
switch (reg) {
case 0:
olen = adb_kbd_poll(d, obuf);
break;
case 1:
break;
case 2:
obuf[0] = 0x00; /* XXX: check this */
obuf[1] = 0x07; /* led status */
olen = 2;
break;
case 3:
obuf[0] = d->devaddr;
obuf[1] = d->handler;
olen = 2;
break;
}
trace_adb_kbd_readreg(reg, obuf[0], obuf[1]);
break;
}
return olen;
}
/* This is where keyboard events enter this file */
static void adb_keyboard_event(DeviceState *dev, QemuConsole *src,
InputEvent *evt)
{
KBDState *s = (KBDState *)dev;
int qcode, keycode;
qcode = qemu_input_key_value_to_qcode(evt->u.key.data->key);
if (qcode >= ARRAY_SIZE(qcode_to_adb_keycode)) {
return;
}
/* FIXME: take handler into account when translating qcode */
keycode = qcode_to_adb_keycode[qcode];
if (keycode == NO_KEY) { /* We don't want to send this to the guest */
trace_adb_kbd_no_key();
return;
}
if (evt->u.key.data->down == false) { /* if key release event */
keycode = keycode | 0x80; /* create keyboard break code */
}
adb_kbd_put_keycode(s, keycode);
}
static const VMStateDescription vmstate_adb_kbd = {
.name = "adb_kbd",
.version_id = 2,
.minimum_version_id = 2,
.fields = (VMStateField[]) {
VMSTATE_STRUCT(parent_obj, KBDState, 0, vmstate_adb_device, ADBDevice),
VMSTATE_BUFFER(data, KBDState),
VMSTATE_INT32(rptr, KBDState),
VMSTATE_INT32(wptr, KBDState),
VMSTATE_INT32(count, KBDState),
VMSTATE_END_OF_LIST()
}
};
static void adb_kbd_reset(DeviceState *dev)
{
ADBDevice *d = ADB_DEVICE(dev);
KBDState *s = ADB_KEYBOARD(dev);
d->handler = 1;
d->devaddr = ADB_DEVID_KEYBOARD;
memset(s->data, 0, sizeof(s->data));
s->rptr = 0;
s->wptr = 0;
s->count = 0;
}
static QemuInputHandler adb_keyboard_handler = {
.name = "QEMU ADB Keyboard",
.mask = INPUT_EVENT_MASK_KEY,
.event = adb_keyboard_event,
};
static void adb_kbd_realizefn(DeviceState *dev, Error **errp)
{
ADBKeyboardClass *akc = ADB_KEYBOARD_GET_CLASS(dev);
akc->parent_realize(dev, errp);
qemu_input_handler_register(dev, &adb_keyboard_handler);
}
static void adb_kbd_initfn(Object *obj)
{
ADBDevice *d = ADB_DEVICE(obj);
d->devaddr = ADB_DEVID_KEYBOARD;
}
static void adb_kbd_class_init(ObjectClass *oc, void *data)
{
DeviceClass *dc = DEVICE_CLASS(oc);
ADBDeviceClass *adc = ADB_DEVICE_CLASS(oc);
ADBKeyboardClass *akc = ADB_KEYBOARD_CLASS(oc);
device_class_set_parent_realize(dc, adb_kbd_realizefn,
&akc->parent_realize);
set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
adc->devreq = adb_kbd_request;
dc->reset = adb_kbd_reset;
dc->vmsd = &vmstate_adb_kbd;
}
static const TypeInfo adb_kbd_type_info = {
.name = TYPE_ADB_KEYBOARD,
.parent = TYPE_ADB_DEVICE,
.instance_size = sizeof(KBDState),
.instance_init = adb_kbd_initfn,
.class_init = adb_kbd_class_init,
.class_size = sizeof(ADBKeyboardClass),
};
static void adb_kbd_register_types(void)
{
type_register_static(&adb_kbd_type_info);
}
type_init(adb_kbd_register_types)
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