diff options
Diffstat (limited to 'hw/input/adb-kbd.c')
| -rw-r--r-- | hw/input/adb-kbd.c | 408 |
1 files changed, 408 insertions, 0 deletions
diff --git a/hw/input/adb-kbd.c b/hw/input/adb-kbd.c new file mode 100644 index 000000000..a9088c910 --- /dev/null +++ b/hw/input/adb-kbd.c @@ -0,0 +1,408 @@ +/* + * 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 = (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) |