482 lines
12 KiB
C
482 lines
12 KiB
C
/*
|
|
* 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 "hw.h"
|
|
#include "ppc_mac.h"
|
|
#include "console.h"
|
|
|
|
/* debug ADB */
|
|
//#define DEBUG_ADB
|
|
|
|
#ifdef DEBUG_ADB
|
|
#define ADB_DPRINTF(fmt, ...) \
|
|
do { printf("ADB: " fmt , ## __VA_ARGS__); } while (0)
|
|
#else
|
|
#define ADB_DPRINTF(fmt, ...)
|
|
#endif
|
|
|
|
/* 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
|
|
|
|
/* error codes */
|
|
#define ADB_RET_NOTPRESENT (-2)
|
|
|
|
int adb_request(ADBBusState *s, uint8_t *obuf, const uint8_t *buf, int len)
|
|
{
|
|
ADBDevice *d;
|
|
int devaddr, cmd, i;
|
|
|
|
cmd = buf[0] & 0xf;
|
|
if (cmd == ADB_BUSRESET) {
|
|
for(i = 0; i < s->nb_devices; i++) {
|
|
d = &s->devices[i];
|
|
if (d->devreset) {
|
|
d->devreset(d);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
devaddr = buf[0] >> 4;
|
|
for(i = 0; i < s->nb_devices; i++) {
|
|
d = &s->devices[i];
|
|
if (d->devaddr == devaddr) {
|
|
return d->devreq(d, obuf, buf, len);
|
|
}
|
|
}
|
|
return ADB_RET_NOTPRESENT;
|
|
}
|
|
|
|
/* XXX: move that to cuda ? */
|
|
int adb_poll(ADBBusState *s, uint8_t *obuf)
|
|
{
|
|
ADBDevice *d;
|
|
int olen, i;
|
|
uint8_t buf[1];
|
|
|
|
olen = 0;
|
|
for(i = 0; i < s->nb_devices; i++) {
|
|
if (s->poll_index >= s->nb_devices)
|
|
s->poll_index = 0;
|
|
d = &s->devices[s->poll_index];
|
|
buf[0] = ADB_READREG | (d->devaddr << 4);
|
|
olen = adb_request(s, obuf + 1, buf, 1);
|
|
/* if there is data, we poll again the same device */
|
|
if (olen > 0) {
|
|
obuf[0] = buf[0];
|
|
olen++;
|
|
break;
|
|
}
|
|
s->poll_index++;
|
|
}
|
|
return olen;
|
|
}
|
|
|
|
ADBDevice *adb_register_device(ADBBusState *s, int devaddr,
|
|
ADBDeviceRequest *devreq,
|
|
ADBDeviceReset *devreset,
|
|
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->devreq = devreq;
|
|
d->devreset = devreset;
|
|
d->opaque = opaque;
|
|
qemu_register_reset((QEMUResetHandler *)devreset, d);
|
|
d->devreset(d);
|
|
return d;
|
|
}
|
|
|
|
/***************************************************************/
|
|
/* Keyboard ADB device */
|
|
|
|
typedef struct KBDState {
|
|
uint8_t data[128];
|
|
int rptr, wptr, count;
|
|
} KBDState;
|
|
|
|
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, 0,110, 81, 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, 76,125, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,105, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 75, 0, 0,124, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0,115, 62,116, 0, 59, 0, 60, 0,119,
|
|
61,121,114,117, 0, 0, 0, 0, 0, 0, 0, 55,126, 0,127, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 95, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
};
|
|
|
|
static void adb_kbd_put_keycode(void *opaque, int keycode)
|
|
{
|
|
ADBDevice *d = opaque;
|
|
KBDState *s = d->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)
|
|
{
|
|
static int ext_keycode;
|
|
KBDState *s = d->opaque;
|
|
int adb_keycode, keycode;
|
|
int olen;
|
|
|
|
olen = 0;
|
|
for(;;) {
|
|
if (s->count == 0)
|
|
break;
|
|
keycode = s->data[s->rptr];
|
|
if (++s->rptr == sizeof(s->data))
|
|
s->rptr = 0;
|
|
s->count--;
|
|
|
|
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];
|
|
obuf[0] = adb_keycode | (keycode & 0x80);
|
|
/* NOTE: could put a second keycode if needed */
|
|
obuf[1] = 0xff;
|
|
olen = 2;
|
|
ext_keycode = 0;
|
|
break;
|
|
}
|
|
}
|
|
return olen;
|
|
}
|
|
|
|
static int adb_kbd_request(ADBDevice *d, uint8_t *obuf,
|
|
const uint8_t *buf, int len)
|
|
{
|
|
KBDState *s = d->opaque;
|
|
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:
|
|
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;
|
|
break;
|
|
default:
|
|
/* XXX: check this */
|
|
d->devaddr = buf[1] & 0xf;
|
|
d->handler = buf[2];
|
|
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->handler;
|
|
obuf[1] = d->devaddr;
|
|
olen = 2;
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
return olen;
|
|
}
|
|
|
|
static void adb_kbd_save(QEMUFile *f, void *opaque)
|
|
{
|
|
KBDState *s = (KBDState *)opaque;
|
|
|
|
qemu_put_buffer(f, s->data, sizeof(s->data));
|
|
qemu_put_sbe32s(f, &s->rptr);
|
|
qemu_put_sbe32s(f, &s->wptr);
|
|
qemu_put_sbe32s(f, &s->count);
|
|
}
|
|
|
|
static int adb_kbd_load(QEMUFile *f, void *opaque, int version_id)
|
|
{
|
|
KBDState *s = (KBDState *)opaque;
|
|
|
|
if (version_id != 1)
|
|
return -EINVAL;
|
|
|
|
qemu_get_buffer(f, s->data, sizeof(s->data));
|
|
qemu_get_sbe32s(f, &s->rptr);
|
|
qemu_get_sbe32s(f, &s->wptr);
|
|
qemu_get_sbe32s(f, &s->count);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int adb_kbd_reset(ADBDevice *d)
|
|
{
|
|
KBDState *s = d->opaque;
|
|
|
|
d->handler = 1;
|
|
d->devaddr = ADB_KEYBOARD;
|
|
memset(s, 0, sizeof(KBDState));
|
|
|
|
return 0;
|
|
}
|
|
|
|
void adb_kbd_init(ADBBusState *bus)
|
|
{
|
|
ADBDevice *d;
|
|
KBDState *s;
|
|
s = qemu_mallocz(sizeof(KBDState));
|
|
d = adb_register_device(bus, ADB_KEYBOARD, adb_kbd_request,
|
|
adb_kbd_reset, s);
|
|
qemu_add_kbd_event_handler(adb_kbd_put_keycode, d);
|
|
register_savevm("adb_kbd", -1, 1, adb_kbd_save,
|
|
adb_kbd_load, s);
|
|
}
|
|
|
|
/***************************************************************/
|
|
/* Mouse ADB device */
|
|
|
|
typedef struct MouseState {
|
|
int buttons_state, last_buttons_state;
|
|
int dx, dy, dz;
|
|
} MouseState;
|
|
|
|
static void adb_mouse_event(void *opaque,
|
|
int dx1, int dy1, int dz1, int buttons_state)
|
|
{
|
|
ADBDevice *d = opaque;
|
|
MouseState *s = d->opaque;
|
|
|
|
s->dx += dx1;
|
|
s->dy += dy1;
|
|
s->dz += dz1;
|
|
s->buttons_state = buttons_state;
|
|
}
|
|
|
|
|
|
static int adb_mouse_poll(ADBDevice *d, uint8_t *obuf)
|
|
{
|
|
MouseState *s = d->opaque;
|
|
int dx, dy;
|
|
|
|
if (s->last_buttons_state == s->buttons_state &&
|
|
s->dx == 0 && s->dy == 0)
|
|
return 0;
|
|
|
|
dx = s->dx;
|
|
if (dx < -63)
|
|
dx = -63;
|
|
else if (dx > 63)
|
|
dx = 63;
|
|
|
|
dy = s->dy;
|
|
if (dy < -63)
|
|
dy = -63;
|
|
else if (dy > 63)
|
|
dy = 63;
|
|
|
|
s->dx -= dx;
|
|
s->dy -= dy;
|
|
s->last_buttons_state = s->buttons_state;
|
|
|
|
dx &= 0x7f;
|
|
dy &= 0x7f;
|
|
|
|
if (!(s->buttons_state & MOUSE_EVENT_LBUTTON))
|
|
dy |= 0x80;
|
|
if (!(s->buttons_state & MOUSE_EVENT_RBUTTON))
|
|
dx |= 0x80;
|
|
|
|
obuf[0] = dy;
|
|
obuf[1] = dx;
|
|
return 2;
|
|
}
|
|
|
|
static int adb_mouse_request(ADBDevice *d, uint8_t *obuf,
|
|
const uint8_t *buf, int len)
|
|
{
|
|
MouseState *s = d->opaque;
|
|
int cmd, reg, olen;
|
|
|
|
if ((buf[0] & 0x0f) == ADB_FLUSH) {
|
|
/* flush mouse fifo */
|
|
s->buttons_state = s->last_buttons_state;
|
|
s->dx = 0;
|
|
s->dy = 0;
|
|
s->dz = 0;
|
|
return 0;
|
|
}
|
|
|
|
cmd = buf[0] & 0xc;
|
|
reg = buf[0] & 0x3;
|
|
olen = 0;
|
|
switch(cmd) {
|
|
case ADB_WRITEREG:
|
|
ADB_DPRINTF("write reg %d val 0x%2.2x\n", reg, buf[1]);
|
|
switch(reg) {
|
|
case 2:
|
|
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;
|
|
break;
|
|
default:
|
|
/* XXX: check this */
|
|
d->devaddr = buf[1] & 0xf;
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
case ADB_READREG:
|
|
switch(reg) {
|
|
case 0:
|
|
olen = adb_mouse_poll(d, obuf);
|
|
break;
|
|
case 1:
|
|
break;
|
|
case 3:
|
|
obuf[0] = d->handler;
|
|
obuf[1] = d->devaddr;
|
|
olen = 2;
|
|
break;
|
|
}
|
|
ADB_DPRINTF("read reg %d obuf[0] 0x%2.2x obuf[1] 0x%2.2x\n", reg,
|
|
obuf[0], obuf[1]);
|
|
break;
|
|
}
|
|
return olen;
|
|
}
|
|
|
|
static int adb_mouse_reset(ADBDevice *d)
|
|
{
|
|
MouseState *s = d->opaque;
|
|
|
|
d->handler = 2;
|
|
d->devaddr = ADB_MOUSE;
|
|
memset(s, 0, sizeof(MouseState));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void adb_mouse_save(QEMUFile *f, void *opaque)
|
|
{
|
|
MouseState *s = (MouseState *)opaque;
|
|
|
|
qemu_put_sbe32s(f, &s->buttons_state);
|
|
qemu_put_sbe32s(f, &s->last_buttons_state);
|
|
qemu_put_sbe32s(f, &s->dx);
|
|
qemu_put_sbe32s(f, &s->dy);
|
|
qemu_put_sbe32s(f, &s->dz);
|
|
}
|
|
|
|
static int adb_mouse_load(QEMUFile *f, void *opaque, int version_id)
|
|
{
|
|
MouseState *s = (MouseState *)opaque;
|
|
|
|
if (version_id != 1)
|
|
return -EINVAL;
|
|
|
|
qemu_get_sbe32s(f, &s->buttons_state);
|
|
qemu_get_sbe32s(f, &s->last_buttons_state);
|
|
qemu_get_sbe32s(f, &s->dx);
|
|
qemu_get_sbe32s(f, &s->dy);
|
|
qemu_get_sbe32s(f, &s->dz);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void adb_mouse_init(ADBBusState *bus)
|
|
{
|
|
ADBDevice *d;
|
|
MouseState *s;
|
|
|
|
s = qemu_mallocz(sizeof(MouseState));
|
|
d = adb_register_device(bus, ADB_MOUSE, adb_mouse_request,
|
|
adb_mouse_reset, s);
|
|
qemu_add_mouse_event_handler(adb_mouse_event, d, 0, "QEMU ADB Mouse");
|
|
register_savevm("adb_mouse", -1, 1, adb_mouse_save,
|
|
adb_mouse_load, s);
|
|
}
|