/* * 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; 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_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: 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; } 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_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; adc->devhasdata = adb_kbd_has_data; 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)