| /* |
| * 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" |
| #include "qom/object.h" |
| |
| OBJECT_DECLARE_TYPE(KBDState, ADBKeyboardClass, ADB_KEYBOARD) |
| |
| struct KBDState { |
| /*< private >*/ |
| ADBDevice parent_obj; |
| /*< public >*/ |
| |
| uint8_t data[128]; |
| int rptr, wptr, count; |
| }; |
| |
| |
| struct ADBKeyboardClass { |
| /*< private >*/ |
| ADBDeviceClass parent_class; |
| /*< public >*/ |
| |
| DeviceRealize parent_realize; |
| }; |
| |
| /* 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; |
| |
| 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; |
| } 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; |
| } |
| |
| return 2; |
| } |
| |
| 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_device_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_device_kbd_request_change_addr(d->devaddr); |
| break; |
| default: |
| 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_device_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_device_kbd_readreg(reg, obuf[0], obuf[1]); |
| break; |
| } |
| return olen; |
| } |
| |
| static bool adb_kbd_has_data(ADBDevice *d) |
| { |
| KBDState *s = ADB_KEYBOARD(d); |
| |
| return s->count > 0; |
| } |
| |
| /* 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_device_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 = (const 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 const 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; |
| adc->devhasdata = adb_kbd_has_data; |
| device_class_set_legacy_reset(dc, 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) |
