| /* |
| * QEMU ADB 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 "vl.h" |
| |
| /* ADB commands */ |
| #define ADB_BUSRESET 0x00 |
| #define ADB_FLUSH 0x01 |
| #define ADB_WRITEREG 0x08 |
| #define ADB_READREG 0x0c |
| |
| /* ADB device commands */ |
| #define ADB_CMD_SELF_TEST 0xff |
| #define ADB_CMD_CHANGE_ID 0xfe |
| #define ADB_CMD_CHANGE_ID_AND_ACT 0xfd |
| #define ADB_CMD_CHANGE_ID_AND_ENABLE 0x00 |
| |
| /* ADB default device IDs (upper 4 bits of ADB command byte) */ |
| #define ADB_DONGLE 1 |
| #define ADB_KEYBOARD 2 |
| #define ADB_MOUSE 3 |
| #define ADB_TABLET 4 |
| #define ADB_MODEM 5 |
| #define ADB_MISC 7 |
| |
| #define ADB_RET_OK 0 |
| #define ADB_RET_INUSE 1 |
| #define ADB_RET_NOTPRESENT 2 |
| #define ADB_RET_TIMEOUT 3 |
| #define ADB_RET_UNEXPECTED_RESULT 4 |
| #define ADB_RET_REQUEST_ERROR 5 |
| #define ADB_RET_BUS_ERROR 6 |
| |
| |
| static void adb_send_packet1(ADBBusState *s, uint8_t reply) |
| { |
| adb_send_packet(s, &reply, 1); |
| } |
| |
| void adb_receive_packet(ADBBusState *s, const uint8_t *buf, int len) |
| { |
| ADBDevice *d; |
| int devaddr, cmd, i; |
| uint8_t obuf[4]; |
| |
| cmd = buf[1] & 0xf; |
| devaddr = buf[1] >> 4; |
| if (buf[1] == ADB_BUSRESET) { |
| obuf[0] = 0x00; |
| obuf[1] = 0x00; |
| adb_send_packet(s, obuf, 2); |
| return; |
| } |
| if (cmd == ADB_FLUSH) { |
| obuf[0] = 0x00; |
| obuf[1] = 0x00; |
| adb_send_packet(s, obuf, 2); |
| return; |
| } |
| |
| for(i = 0; i < s->nb_devices; i++) { |
| d = &s->devices[i]; |
| if (d->devaddr == devaddr) { |
| d->receive_packet(d, buf, len); |
| return; |
| } |
| } |
| adb_send_packet1(s, ADB_RET_NOTPRESENT); |
| } |
| |
| ADBDevice *adb_register_device(ADBBusState *s, int devaddr, |
| ADBDeviceReceivePacket *receive_packet, |
| void *opaque) |
| { |
| ADBDevice *d; |
| if (s->nb_devices >= MAX_ADB_DEVICES) |
| return NULL; |
| d = &s->devices[s->nb_devices++]; |
| d->bus = s; |
| d->devaddr = devaddr; |
| d->receive_packet = receive_packet; |
| d->opaque = opaque; |
| return d; |
| } |
| |
| /***************************************************************/ |
| /* Keyboard ADB device */ |
| |
| static const uint8_t pc_to_adb_keycode[256] = { |
| 0, 53, 18, 19, 20, 21, 23, 22, 26, 28, 25, 29, 27, 24, 51, 48, |
| 12, 13, 14, 15, 17, 16, 32, 34, 31, 35, 33, 30, 36, 54, 0, 1, |
| 2, 3, 5, 4, 38, 40, 37, 41, 39, 50, 56, 42, 6, 7, 8, 9, |
| 11, 45, 46, 43, 47, 44,123, 67, 58, 49, 57,122,120, 99,118, 96, |
| 97, 98,100,101,109, 71,107, 89, 91, 92, 78, 86, 87, 88, 69, 83, |
| 84, 85, 82, 65, 0, 0, 10,103,111, 0, 0, 0, 0, 0, 0, 0, |
| 76,125, 75,105,124,110,115, 62,116, 59, 60,119, 61,121,114,117, |
| 0, 0, 0, 0,127, 81, 0,113, 0, 0, 0, 0, 95, 55, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 94, 0, 93, 0, 0, 0, 0, 0, 0,104,102, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| }; |
| |
| static void adb_kbd_put_keycode(void *opaque, int keycode) |
| { |
| static int ext_keycode; |
| ADBDevice *d = opaque; |
| uint8_t buf[4]; |
| int adb_keycode; |
| |
| if (keycode == 0xe0) { |
| ext_keycode = 1; |
| } else { |
| |
| if (ext_keycode) |
| adb_keycode = pc_to_adb_keycode[keycode | 0x80]; |
| else |
| adb_keycode = pc_to_adb_keycode[keycode & 0x7f]; |
| |
| buf[0] = 0x40; |
| buf[1] = (d->devaddr << 4) | 0x0c; |
| buf[2] = adb_keycode | (keycode & 0x80); |
| buf[3] = 0xff; |
| adb_send_packet(d->bus, buf, 4); |
| ext_keycode = 0; |
| } |
| } |
| |
| static void adb_kbd_receive_packet(ADBDevice *d, const uint8_t *buf, int len) |
| { |
| int cmd, reg; |
| uint8_t obuf[4]; |
| |
| cmd = buf[0] & 0xc; |
| reg = buf[0] & 0x3; |
| switch(cmd) { |
| case ADB_WRITEREG: |
| switch(reg) { |
| case 2: |
| /* LED status */ |
| adb_send_packet1(d->bus, ADB_RET_OK); |
| break; |
| case 3: |
| switch(buf[2]) { |
| case ADB_CMD_SELF_TEST: |
| adb_send_packet1(d->bus, ADB_RET_OK); |
| 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; |
| adb_send_packet1(d->bus, ADB_RET_OK); |
| break; |
| default: |
| /* XXX: check this */ |
| d->devaddr = buf[1] & 0xf; |
| d->handler = buf[2]; |
| adb_send_packet1(d->bus, ADB_RET_OK); |
| break; |
| } |
| } |
| break; |
| case ADB_READREG: |
| switch(reg) { |
| case 1: |
| adb_send_packet1(d->bus, ADB_RET_OK); |
| break; |
| case 2: |
| obuf[0] = ADB_RET_OK; |
| obuf[1] = 0x00; /* XXX: check this */ |
| obuf[2] = 0x07; /* led status */ |
| adb_send_packet(d->bus, obuf, 3); |
| break; |
| case 3: |
| obuf[0] = ADB_RET_OK; |
| obuf[1] = d->handler; |
| obuf[2] = d->devaddr; |
| adb_send_packet(d->bus, obuf, 3); |
| break; |
| } |
| break; |
| } |
| } |
| |
| void adb_kbd_init(ADBBusState *bus) |
| { |
| ADBDevice *d; |
| |
| d = adb_register_device(bus, ADB_KEYBOARD, adb_kbd_receive_packet, NULL); |
| qemu_add_kbd_event_handler(adb_kbd_put_keycode, d); |
| } |
| |
| /***************************************************************/ |
| /* Mouse ADB device */ |
| |
| static void adb_mouse_event(void *opaque, |
| int dx1, int dy1, int dz1, int buttons_state) |
| { |
| ADBDevice *d = opaque; |
| uint8_t buf[4]; |
| int dx, dy; |
| |
| dx = dx1; |
| if (dx < -63) |
| dx = -63; |
| else if (dx > 63) |
| dx = 63; |
| |
| dy = dy1; |
| if (dy < -63) |
| dy = -63; |
| else if (dy > 63) |
| dy = 63; |
| |
| dx &= 0x7f; |
| dy &= 0x7f; |
| |
| if (buttons_state & MOUSE_EVENT_LBUTTON) |
| dy |= 0x80; |
| if (buttons_state & MOUSE_EVENT_RBUTTON) |
| dx |= 0x80; |
| |
| buf[0] = 0x40; |
| buf[1] = (d->devaddr << 4) | 0x0c; |
| buf[2] = dy; |
| buf[3] = dx; |
| adb_send_packet(d->bus, buf, 4); |
| } |
| |
| static void adb_mouse_receive_packet(ADBDevice *d, const uint8_t *buf, int len) |
| { |
| int cmd, reg; |
| uint8_t obuf[4]; |
| |
| cmd = buf[0] & 0xc; |
| reg = buf[0] & 0x3; |
| switch(cmd) { |
| case ADB_WRITEREG: |
| switch(reg) { |
| case 2: |
| adb_send_packet1(d->bus, ADB_RET_OK); |
| break; |
| case 3: |
| switch(buf[2]) { |
| case ADB_CMD_SELF_TEST: |
| adb_send_packet1(d->bus, ADB_RET_OK); |
| 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; |
| adb_send_packet1(d->bus, ADB_RET_OK); |
| break; |
| default: |
| /* XXX: check this */ |
| d->devaddr = buf[1] & 0xf; |
| adb_send_packet1(d->bus, ADB_RET_OK); |
| break; |
| } |
| } |
| break; |
| case ADB_READREG: |
| switch(reg) { |
| case 1: |
| adb_send_packet1(d->bus, ADB_RET_OK); |
| break; |
| case 3: |
| obuf[0] = ADB_RET_OK; |
| obuf[1] = d->handler; |
| obuf[2] = d->devaddr; |
| adb_send_packet(d->bus, obuf, 3); |
| break; |
| } |
| break; |
| } |
| } |
| |
| void adb_mouse_init(ADBBusState *bus) |
| { |
| ADBDevice *d; |
| |
| d = adb_register_device(bus, ADB_MOUSE, adb_mouse_receive_packet, NULL); |
| qemu_add_mouse_event_handler(adb_mouse_event, d); |
| } |
