root / hw / slavio_serial.c @ 5fafdf24
History | View | Annotate | Download (17.9 kB)
| 1 |
/*
|
|---|---|
| 2 |
* QEMU Sparc SLAVIO serial port emulation
|
| 3 |
*
|
| 4 |
* Copyright (c) 2003-2005 Fabrice Bellard
|
| 5 |
*
|
| 6 |
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
| 7 |
* of this software and associated documentation files (the "Software"), to deal
|
| 8 |
* in the Software without restriction, including without limitation the rights
|
| 9 |
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
| 10 |
* copies of the Software, and to permit persons to whom the Software is
|
| 11 |
* furnished to do so, subject to the following conditions:
|
| 12 |
*
|
| 13 |
* The above copyright notice and this permission notice shall be included in
|
| 14 |
* all copies or substantial portions of the Software.
|
| 15 |
*
|
| 16 |
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
| 17 |
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
| 18 |
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
| 19 |
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
| 20 |
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
| 21 |
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
| 22 |
* THE SOFTWARE.
|
| 23 |
*/
|
| 24 |
#include "vl.h" |
| 25 |
/* debug serial */
|
| 26 |
//#define DEBUG_SERIAL
|
| 27 |
|
| 28 |
/* debug keyboard */
|
| 29 |
//#define DEBUG_KBD
|
| 30 |
|
| 31 |
/* debug mouse */
|
| 32 |
//#define DEBUG_MOUSE
|
| 33 |
|
| 34 |
/*
|
| 35 |
* This is the serial port, mouse and keyboard part of chip STP2001
|
| 36 |
* (Slave I/O), also produced as NCR89C105. See
|
| 37 |
* http://www.ibiblio.org/pub/historic-linux/early-ports/Sparc/NCR/NCR89C105.txt
|
| 38 |
*
|
| 39 |
* The serial ports implement full AMD AM8530 or Zilog Z8530 chips,
|
| 40 |
* mouse and keyboard ports don't implement all functions and they are
|
| 41 |
* only asynchronous. There is no DMA.
|
| 42 |
*
|
| 43 |
*/
|
| 44 |
|
| 45 |
/*
|
| 46 |
* Modifications:
|
| 47 |
* 2006-Aug-10 Igor Kovalenko : Renamed KBDQueue to SERIOQueue, implemented
|
| 48 |
* serial mouse queue.
|
| 49 |
* Implemented serial mouse protocol.
|
| 50 |
*/
|
| 51 |
|
| 52 |
#ifdef DEBUG_SERIAL
|
| 53 |
#define SER_DPRINTF(fmt, args...) \
|
| 54 |
do { printf("SER: " fmt , ##args); } while (0) |
| 55 |
#else
|
| 56 |
#define SER_DPRINTF(fmt, args...)
|
| 57 |
#endif
|
| 58 |
#ifdef DEBUG_KBD
|
| 59 |
#define KBD_DPRINTF(fmt, args...) \
|
| 60 |
do { printf("KBD: " fmt , ##args); } while (0) |
| 61 |
#else
|
| 62 |
#define KBD_DPRINTF(fmt, args...)
|
| 63 |
#endif
|
| 64 |
#ifdef DEBUG_MOUSE
|
| 65 |
#define MS_DPRINTF(fmt, args...) \
|
| 66 |
do { printf("MSC: " fmt , ##args); } while (0) |
| 67 |
#else
|
| 68 |
#define MS_DPRINTF(fmt, args...)
|
| 69 |
#endif
|
| 70 |
|
| 71 |
typedef enum { |
| 72 |
chn_a, chn_b, |
| 73 |
} chn_id_t; |
| 74 |
|
| 75 |
#define CHN_C(s) ((s)->chn == chn_b? 'b' : 'a') |
| 76 |
|
| 77 |
typedef enum { |
| 78 |
ser, kbd, mouse, |
| 79 |
} chn_type_t; |
| 80 |
|
| 81 |
#define SERIO_QUEUE_SIZE 256 |
| 82 |
|
| 83 |
typedef struct { |
| 84 |
uint8_t data[SERIO_QUEUE_SIZE]; |
| 85 |
int rptr, wptr, count;
|
| 86 |
} SERIOQueue; |
| 87 |
|
| 88 |
typedef struct ChannelState { |
| 89 |
qemu_irq irq; |
| 90 |
int reg;
|
| 91 |
int rxint, txint, rxint_under_svc, txint_under_svc;
|
| 92 |
chn_id_t chn; // this channel, A (base+4) or B (base+0)
|
| 93 |
chn_type_t type; |
| 94 |
struct ChannelState *otherchn;
|
| 95 |
uint8_t rx, tx, wregs[16], rregs[16]; |
| 96 |
SERIOQueue queue; |
| 97 |
CharDriverState *chr; |
| 98 |
} ChannelState; |
| 99 |
|
| 100 |
struct SerialState {
|
| 101 |
struct ChannelState chn[2]; |
| 102 |
}; |
| 103 |
|
| 104 |
#define SERIAL_MAXADDR 7 |
| 105 |
#define SERIAL_SIZE (SERIAL_MAXADDR + 1) |
| 106 |
|
| 107 |
static void handle_kbd_command(ChannelState *s, int val); |
| 108 |
static int serial_can_receive(void *opaque); |
| 109 |
static void serial_receive_byte(ChannelState *s, int ch); |
| 110 |
static inline void set_txint(ChannelState *s); |
| 111 |
|
| 112 |
static void clear_queue(void *opaque) |
| 113 |
{
|
| 114 |
ChannelState *s = opaque; |
| 115 |
SERIOQueue *q = &s->queue; |
| 116 |
q->rptr = q->wptr = q->count = 0;
|
| 117 |
} |
| 118 |
|
| 119 |
static void put_queue(void *opaque, int b) |
| 120 |
{
|
| 121 |
ChannelState *s = opaque; |
| 122 |
SERIOQueue *q = &s->queue; |
| 123 |
|
| 124 |
SER_DPRINTF("channel %c put: 0x%02x\n", CHN_C(s), b);
|
| 125 |
if (q->count >= SERIO_QUEUE_SIZE)
|
| 126 |
return;
|
| 127 |
q->data[q->wptr] = b; |
| 128 |
if (++q->wptr == SERIO_QUEUE_SIZE)
|
| 129 |
q->wptr = 0;
|
| 130 |
q->count++; |
| 131 |
serial_receive_byte(s, 0);
|
| 132 |
} |
| 133 |
|
| 134 |
static uint32_t get_queue(void *opaque) |
| 135 |
{
|
| 136 |
ChannelState *s = opaque; |
| 137 |
SERIOQueue *q = &s->queue; |
| 138 |
int val;
|
| 139 |
|
| 140 |
if (q->count == 0) { |
| 141 |
return 0; |
| 142 |
} else {
|
| 143 |
val = q->data[q->rptr]; |
| 144 |
if (++q->rptr == SERIO_QUEUE_SIZE)
|
| 145 |
q->rptr = 0;
|
| 146 |
q->count--; |
| 147 |
} |
| 148 |
SER_DPRINTF("channel %c get 0x%02x\n", CHN_C(s), val);
|
| 149 |
if (q->count > 0) |
| 150 |
serial_receive_byte(s, 0);
|
| 151 |
return val;
|
| 152 |
} |
| 153 |
|
| 154 |
static int slavio_serial_update_irq_chn(ChannelState *s) |
| 155 |
{
|
| 156 |
if ((s->wregs[1] & 1) && // interrupts enabled |
| 157 |
(((s->wregs[1] & 2) && s->txint == 1) || // tx ints enabled, pending |
| 158 |
((((s->wregs[1] & 0x18) == 8) || ((s->wregs[1] & 0x18) == 0x10)) && |
| 159 |
s->rxint == 1) || // rx ints enabled, pending |
| 160 |
((s->wregs[15] & 0x80) && (s->rregs[0] & 0x80)))) { // break int e&p |
| 161 |
return 1; |
| 162 |
} |
| 163 |
return 0; |
| 164 |
} |
| 165 |
|
| 166 |
static void slavio_serial_update_irq(ChannelState *s) |
| 167 |
{
|
| 168 |
int irq;
|
| 169 |
|
| 170 |
irq = slavio_serial_update_irq_chn(s); |
| 171 |
irq |= slavio_serial_update_irq_chn(s->otherchn); |
| 172 |
|
| 173 |
SER_DPRINTF("IRQ = %d\n", irq);
|
| 174 |
qemu_set_irq(s->irq, irq); |
| 175 |
} |
| 176 |
|
| 177 |
static void slavio_serial_reset_chn(ChannelState *s) |
| 178 |
{
|
| 179 |
int i;
|
| 180 |
|
| 181 |
s->reg = 0;
|
| 182 |
for (i = 0; i < SERIAL_SIZE; i++) { |
| 183 |
s->rregs[i] = 0;
|
| 184 |
s->wregs[i] = 0;
|
| 185 |
} |
| 186 |
s->wregs[4] = 4; |
| 187 |
s->wregs[9] = 0xc0; |
| 188 |
s->wregs[11] = 8; |
| 189 |
s->wregs[14] = 0x30; |
| 190 |
s->wregs[15] = 0xf8; |
| 191 |
s->rregs[0] = 0x44; |
| 192 |
s->rregs[1] = 6; |
| 193 |
|
| 194 |
s->rx = s->tx = 0;
|
| 195 |
s->rxint = s->txint = 0;
|
| 196 |
s->rxint_under_svc = s->txint_under_svc = 0;
|
| 197 |
clear_queue(s); |
| 198 |
} |
| 199 |
|
| 200 |
static void slavio_serial_reset(void *opaque) |
| 201 |
{
|
| 202 |
SerialState *s = opaque; |
| 203 |
slavio_serial_reset_chn(&s->chn[0]);
|
| 204 |
slavio_serial_reset_chn(&s->chn[1]);
|
| 205 |
} |
| 206 |
|
| 207 |
static inline void clr_rxint(ChannelState *s) |
| 208 |
{
|
| 209 |
s->rxint = 0;
|
| 210 |
s->rxint_under_svc = 0;
|
| 211 |
if (s->chn == chn_a) {
|
| 212 |
if (s->wregs[9] & 0x10) |
| 213 |
s->otherchn->rregs[2] = 0x60; |
| 214 |
else
|
| 215 |
s->otherchn->rregs[2] = 0x06; |
| 216 |
s->rregs[3] &= ~0x20; |
| 217 |
} else {
|
| 218 |
if (s->wregs[9] & 0x10) |
| 219 |
s->rregs[2] = 0x60; |
| 220 |
else
|
| 221 |
s->rregs[2] = 0x06; |
| 222 |
s->otherchn->rregs[3] &= ~4; |
| 223 |
} |
| 224 |
if (s->txint)
|
| 225 |
set_txint(s); |
| 226 |
slavio_serial_update_irq(s); |
| 227 |
} |
| 228 |
|
| 229 |
static inline void set_rxint(ChannelState *s) |
| 230 |
{
|
| 231 |
s->rxint = 1;
|
| 232 |
if (!s->txint_under_svc) {
|
| 233 |
s->rxint_under_svc = 1;
|
| 234 |
if (s->chn == chn_a) {
|
| 235 |
if (s->wregs[9] & 0x10) |
| 236 |
s->otherchn->rregs[2] = 0x30; |
| 237 |
else
|
| 238 |
s->otherchn->rregs[2] = 0x0c; |
| 239 |
} else {
|
| 240 |
if (s->wregs[9] & 0x10) |
| 241 |
s->rregs[2] = 0x20; |
| 242 |
else
|
| 243 |
s->rregs[2] = 0x04; |
| 244 |
} |
| 245 |
} |
| 246 |
if (s->chn == chn_a)
|
| 247 |
s->rregs[3] |= 0x20; |
| 248 |
else
|
| 249 |
s->otherchn->rregs[3] |= 4; |
| 250 |
slavio_serial_update_irq(s); |
| 251 |
} |
| 252 |
|
| 253 |
static inline void clr_txint(ChannelState *s) |
| 254 |
{
|
| 255 |
s->txint = 0;
|
| 256 |
s->txint_under_svc = 0;
|
| 257 |
if (s->chn == chn_a) {
|
| 258 |
if (s->wregs[9] & 0x10) |
| 259 |
s->otherchn->rregs[2] = 0x60; |
| 260 |
else
|
| 261 |
s->otherchn->rregs[2] = 0x06; |
| 262 |
s->rregs[3] &= ~0x10; |
| 263 |
} else {
|
| 264 |
if (s->wregs[9] & 0x10) |
| 265 |
s->rregs[2] = 0x60; |
| 266 |
else
|
| 267 |
s->rregs[2] = 0x06; |
| 268 |
s->otherchn->rregs[3] &= ~2; |
| 269 |
} |
| 270 |
if (s->rxint)
|
| 271 |
set_rxint(s); |
| 272 |
slavio_serial_update_irq(s); |
| 273 |
} |
| 274 |
|
| 275 |
static inline void set_txint(ChannelState *s) |
| 276 |
{
|
| 277 |
s->txint = 1;
|
| 278 |
if (!s->rxint_under_svc) {
|
| 279 |
s->txint_under_svc = 1;
|
| 280 |
if (s->chn == chn_a) {
|
| 281 |
if (s->wregs[9] & 0x10) |
| 282 |
s->otherchn->rregs[2] = 0x10; |
| 283 |
else
|
| 284 |
s->otherchn->rregs[2] = 0x08; |
| 285 |
} else {
|
| 286 |
s->rregs[2] = 0; |
| 287 |
} |
| 288 |
} |
| 289 |
if (s->chn == chn_a)
|
| 290 |
s->rregs[3] |= 0x10; |
| 291 |
else
|
| 292 |
s->otherchn->rregs[3] |= 2; |
| 293 |
slavio_serial_update_irq(s); |
| 294 |
} |
| 295 |
|
| 296 |
static void slavio_serial_update_parameters(ChannelState *s) |
| 297 |
{
|
| 298 |
int speed, parity, data_bits, stop_bits;
|
| 299 |
QEMUSerialSetParams ssp; |
| 300 |
|
| 301 |
if (!s->chr || s->type != ser)
|
| 302 |
return;
|
| 303 |
|
| 304 |
if (s->wregs[4] & 1) { |
| 305 |
if (s->wregs[4] & 2) |
| 306 |
parity = 'E';
|
| 307 |
else
|
| 308 |
parity = 'O';
|
| 309 |
} else {
|
| 310 |
parity = 'N';
|
| 311 |
} |
| 312 |
if ((s->wregs[4] & 0x0c) == 0x0c) |
| 313 |
stop_bits = 2;
|
| 314 |
else
|
| 315 |
stop_bits = 1;
|
| 316 |
switch (s->wregs[5] & 0x60) { |
| 317 |
case 0x00: |
| 318 |
data_bits = 5;
|
| 319 |
break;
|
| 320 |
case 0x20: |
| 321 |
data_bits = 7;
|
| 322 |
break;
|
| 323 |
case 0x40: |
| 324 |
data_bits = 6;
|
| 325 |
break;
|
| 326 |
default:
|
| 327 |
case 0x60: |
| 328 |
data_bits = 8;
|
| 329 |
break;
|
| 330 |
} |
| 331 |
speed = 2457600 / ((s->wregs[12] | (s->wregs[13] << 8)) + 2); |
| 332 |
switch (s->wregs[4] & 0xc0) { |
| 333 |
case 0x00: |
| 334 |
break;
|
| 335 |
case 0x40: |
| 336 |
speed /= 16;
|
| 337 |
break;
|
| 338 |
case 0x80: |
| 339 |
speed /= 32;
|
| 340 |
break;
|
| 341 |
default:
|
| 342 |
case 0xc0: |
| 343 |
speed /= 64;
|
| 344 |
break;
|
| 345 |
} |
| 346 |
ssp.speed = speed; |
| 347 |
ssp.parity = parity; |
| 348 |
ssp.data_bits = data_bits; |
| 349 |
ssp.stop_bits = stop_bits; |
| 350 |
SER_DPRINTF("channel %c: speed=%d parity=%c data=%d stop=%d\n", CHN_C(s),
|
| 351 |
speed, parity, data_bits, stop_bits); |
| 352 |
qemu_chr_ioctl(s->chr, CHR_IOCTL_SERIAL_SET_PARAMS, &ssp); |
| 353 |
} |
| 354 |
|
| 355 |
static void slavio_serial_mem_writeb(void *opaque, target_phys_addr_t addr, uint32_t val) |
| 356 |
{
|
| 357 |
SerialState *serial = opaque; |
| 358 |
ChannelState *s; |
| 359 |
uint32_t saddr; |
| 360 |
int newreg, channel;
|
| 361 |
|
| 362 |
val &= 0xff;
|
| 363 |
saddr = (addr & 3) >> 1; |
| 364 |
channel = (addr & SERIAL_MAXADDR) >> 2;
|
| 365 |
s = &serial->chn[channel]; |
| 366 |
switch (saddr) {
|
| 367 |
case 0: |
| 368 |
SER_DPRINTF("Write channel %c, reg[%d] = %2.2x\n", CHN_C(s), s->reg, val & 0xff); |
| 369 |
newreg = 0;
|
| 370 |
switch (s->reg) {
|
| 371 |
case 0: |
| 372 |
newreg = val & 7;
|
| 373 |
val &= 0x38;
|
| 374 |
switch (val) {
|
| 375 |
case 8: |
| 376 |
newreg |= 0x8;
|
| 377 |
break;
|
| 378 |
case 0x28: |
| 379 |
clr_txint(s); |
| 380 |
break;
|
| 381 |
case 0x38: |
| 382 |
if (s->rxint_under_svc)
|
| 383 |
clr_rxint(s); |
| 384 |
else if (s->txint_under_svc) |
| 385 |
clr_txint(s); |
| 386 |
break;
|
| 387 |
default:
|
| 388 |
break;
|
| 389 |
} |
| 390 |
break;
|
| 391 |
case 1 ... 3: |
| 392 |
case 6 ... 8: |
| 393 |
case 10 ... 11: |
| 394 |
case 14 ... 15: |
| 395 |
s->wregs[s->reg] = val; |
| 396 |
break;
|
| 397 |
case 4: |
| 398 |
case 5: |
| 399 |
case 12: |
| 400 |
case 13: |
| 401 |
s->wregs[s->reg] = val; |
| 402 |
slavio_serial_update_parameters(s); |
| 403 |
break;
|
| 404 |
case 9: |
| 405 |
switch (val & 0xc0) { |
| 406 |
case 0: |
| 407 |
default:
|
| 408 |
break;
|
| 409 |
case 0x40: |
| 410 |
slavio_serial_reset_chn(&serial->chn[1]);
|
| 411 |
return;
|
| 412 |
case 0x80: |
| 413 |
slavio_serial_reset_chn(&serial->chn[0]);
|
| 414 |
return;
|
| 415 |
case 0xc0: |
| 416 |
slavio_serial_reset(serial); |
| 417 |
return;
|
| 418 |
} |
| 419 |
break;
|
| 420 |
default:
|
| 421 |
break;
|
| 422 |
} |
| 423 |
if (s->reg == 0) |
| 424 |
s->reg = newreg; |
| 425 |
else
|
| 426 |
s->reg = 0;
|
| 427 |
break;
|
| 428 |
case 1: |
| 429 |
SER_DPRINTF("Write channel %c, ch %d\n", CHN_C(s), val);
|
| 430 |
s->tx = val; |
| 431 |
if (s->wregs[5] & 8) { // tx enabled |
| 432 |
if (s->chr)
|
| 433 |
qemu_chr_write(s->chr, &s->tx, 1);
|
| 434 |
else if (s->type == kbd) { |
| 435 |
handle_kbd_command(s, val); |
| 436 |
} |
| 437 |
} |
| 438 |
s->rregs[0] |= 4; // Tx buffer empty |
| 439 |
s->rregs[1] |= 1; // All sent |
| 440 |
set_txint(s); |
| 441 |
break;
|
| 442 |
default:
|
| 443 |
break;
|
| 444 |
} |
| 445 |
} |
| 446 |
|
| 447 |
static uint32_t slavio_serial_mem_readb(void *opaque, target_phys_addr_t addr) |
| 448 |
{
|
| 449 |
SerialState *serial = opaque; |
| 450 |
ChannelState *s; |
| 451 |
uint32_t saddr; |
| 452 |
uint32_t ret; |
| 453 |
int channel;
|
| 454 |
|
| 455 |
saddr = (addr & 3) >> 1; |
| 456 |
channel = (addr & SERIAL_MAXADDR) >> 2;
|
| 457 |
s = &serial->chn[channel]; |
| 458 |
switch (saddr) {
|
| 459 |
case 0: |
| 460 |
SER_DPRINTF("Read channel %c, reg[%d] = %2.2x\n", CHN_C(s), s->reg, s->rregs[s->reg]);
|
| 461 |
ret = s->rregs[s->reg]; |
| 462 |
s->reg = 0;
|
| 463 |
return ret;
|
| 464 |
case 1: |
| 465 |
s->rregs[0] &= ~1; |
| 466 |
clr_rxint(s); |
| 467 |
if (s->type == kbd || s->type == mouse)
|
| 468 |
ret = get_queue(s); |
| 469 |
else
|
| 470 |
ret = s->rx; |
| 471 |
SER_DPRINTF("Read channel %c, ch %d\n", CHN_C(s), ret);
|
| 472 |
return ret;
|
| 473 |
default:
|
| 474 |
break;
|
| 475 |
} |
| 476 |
return 0; |
| 477 |
} |
| 478 |
|
| 479 |
static int serial_can_receive(void *opaque) |
| 480 |
{
|
| 481 |
ChannelState *s = opaque; |
| 482 |
int ret;
|
| 483 |
|
| 484 |
if (((s->wregs[3] & 1) == 0) // Rx not enabled |
| 485 |
|| ((s->rregs[0] & 1) == 1)) // char already available |
| 486 |
ret = 0;
|
| 487 |
else
|
| 488 |
ret = 1;
|
| 489 |
//SER_DPRINTF("channel %c can receive %d\n", CHN_C(s), ret);
|
| 490 |
return ret;
|
| 491 |
} |
| 492 |
|
| 493 |
static void serial_receive_byte(ChannelState *s, int ch) |
| 494 |
{
|
| 495 |
SER_DPRINTF("channel %c put ch %d\n", CHN_C(s), ch);
|
| 496 |
s->rregs[0] |= 1; |
| 497 |
s->rx = ch; |
| 498 |
set_rxint(s); |
| 499 |
} |
| 500 |
|
| 501 |
static void serial_receive_break(ChannelState *s) |
| 502 |
{
|
| 503 |
s->rregs[0] |= 0x80; |
| 504 |
slavio_serial_update_irq(s); |
| 505 |
} |
| 506 |
|
| 507 |
static void serial_receive1(void *opaque, const uint8_t *buf, int size) |
| 508 |
{
|
| 509 |
ChannelState *s = opaque; |
| 510 |
serial_receive_byte(s, buf[0]);
|
| 511 |
} |
| 512 |
|
| 513 |
static void serial_event(void *opaque, int event) |
| 514 |
{
|
| 515 |
ChannelState *s = opaque; |
| 516 |
if (event == CHR_EVENT_BREAK)
|
| 517 |
serial_receive_break(s); |
| 518 |
} |
| 519 |
|
| 520 |
static CPUReadMemoryFunc *slavio_serial_mem_read[3] = { |
| 521 |
slavio_serial_mem_readb, |
| 522 |
slavio_serial_mem_readb, |
| 523 |
slavio_serial_mem_readb, |
| 524 |
}; |
| 525 |
|
| 526 |
static CPUWriteMemoryFunc *slavio_serial_mem_write[3] = { |
| 527 |
slavio_serial_mem_writeb, |
| 528 |
slavio_serial_mem_writeb, |
| 529 |
slavio_serial_mem_writeb, |
| 530 |
}; |
| 531 |
|
| 532 |
static void slavio_serial_save_chn(QEMUFile *f, ChannelState *s) |
| 533 |
{
|
| 534 |
int tmp;
|
| 535 |
tmp = 0;
|
| 536 |
qemu_put_be32s(f, &tmp); /* unused, was IRQ. */
|
| 537 |
qemu_put_be32s(f, &s->reg); |
| 538 |
qemu_put_be32s(f, &s->rxint); |
| 539 |
qemu_put_be32s(f, &s->txint); |
| 540 |
qemu_put_be32s(f, &s->rxint_under_svc); |
| 541 |
qemu_put_be32s(f, &s->txint_under_svc); |
| 542 |
qemu_put_8s(f, &s->rx); |
| 543 |
qemu_put_8s(f, &s->tx); |
| 544 |
qemu_put_buffer(f, s->wregs, 16);
|
| 545 |
qemu_put_buffer(f, s->rregs, 16);
|
| 546 |
} |
| 547 |
|
| 548 |
static void slavio_serial_save(QEMUFile *f, void *opaque) |
| 549 |
{
|
| 550 |
SerialState *s = opaque; |
| 551 |
|
| 552 |
slavio_serial_save_chn(f, &s->chn[0]);
|
| 553 |
slavio_serial_save_chn(f, &s->chn[1]);
|
| 554 |
} |
| 555 |
|
| 556 |
static int slavio_serial_load_chn(QEMUFile *f, ChannelState *s, int version_id) |
| 557 |
{
|
| 558 |
int tmp;
|
| 559 |
|
| 560 |
if (version_id > 2) |
| 561 |
return -EINVAL;
|
| 562 |
|
| 563 |
qemu_get_be32s(f, &tmp); /* unused */
|
| 564 |
qemu_get_be32s(f, &s->reg); |
| 565 |
qemu_get_be32s(f, &s->rxint); |
| 566 |
qemu_get_be32s(f, &s->txint); |
| 567 |
if (version_id >= 2) { |
| 568 |
qemu_get_be32s(f, &s->rxint_under_svc); |
| 569 |
qemu_get_be32s(f, &s->txint_under_svc); |
| 570 |
} |
| 571 |
qemu_get_8s(f, &s->rx); |
| 572 |
qemu_get_8s(f, &s->tx); |
| 573 |
qemu_get_buffer(f, s->wregs, 16);
|
| 574 |
qemu_get_buffer(f, s->rregs, 16);
|
| 575 |
return 0; |
| 576 |
} |
| 577 |
|
| 578 |
static int slavio_serial_load(QEMUFile *f, void *opaque, int version_id) |
| 579 |
{
|
| 580 |
SerialState *s = opaque; |
| 581 |
int ret;
|
| 582 |
|
| 583 |
ret = slavio_serial_load_chn(f, &s->chn[0], version_id);
|
| 584 |
if (ret != 0) |
| 585 |
return ret;
|
| 586 |
ret = slavio_serial_load_chn(f, &s->chn[1], version_id);
|
| 587 |
return ret;
|
| 588 |
|
| 589 |
} |
| 590 |
|
| 591 |
SerialState *slavio_serial_init(target_phys_addr_t base, qemu_irq irq, |
| 592 |
CharDriverState *chr1, CharDriverState *chr2) |
| 593 |
{
|
| 594 |
int slavio_serial_io_memory, i;
|
| 595 |
SerialState *s; |
| 596 |
|
| 597 |
s = qemu_mallocz(sizeof(SerialState));
|
| 598 |
if (!s)
|
| 599 |
return NULL; |
| 600 |
|
| 601 |
slavio_serial_io_memory = cpu_register_io_memory(0, slavio_serial_mem_read, slavio_serial_mem_write, s);
|
| 602 |
cpu_register_physical_memory(base, SERIAL_SIZE, slavio_serial_io_memory); |
| 603 |
|
| 604 |
s->chn[0].chr = chr1;
|
| 605 |
s->chn[1].chr = chr2;
|
| 606 |
|
| 607 |
for (i = 0; i < 2; i++) { |
| 608 |
s->chn[i].irq = irq; |
| 609 |
s->chn[i].chn = 1 - i;
|
| 610 |
s->chn[i].type = ser; |
| 611 |
if (s->chn[i].chr) {
|
| 612 |
qemu_chr_add_handlers(s->chn[i].chr, serial_can_receive, |
| 613 |
serial_receive1, serial_event, &s->chn[i]); |
| 614 |
} |
| 615 |
} |
| 616 |
s->chn[0].otherchn = &s->chn[1]; |
| 617 |
s->chn[1].otherchn = &s->chn[0]; |
| 618 |
register_savevm("slavio_serial", base, 2, slavio_serial_save, slavio_serial_load, s); |
| 619 |
qemu_register_reset(slavio_serial_reset, s); |
| 620 |
slavio_serial_reset(s); |
| 621 |
return s;
|
| 622 |
} |
| 623 |
|
| 624 |
static const uint8_t keycodes[128] = { |
| 625 |
127, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 43, 53, |
| 626 |
54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 89, 76, 77, 78, |
| 627 |
79, 80, 81, 82, 83, 84, 85, 86, 87, 42, 99, 88, 100, 101, 102, 103, |
| 628 |
104, 105, 106, 107, 108, 109, 110, 47, 19, 121, 119, 5, 6, 8, 10, 12, |
| 629 |
14, 16, 17, 18, 7, 98, 23, 68, 69, 70, 71, 91, 92, 93, 125, 112, |
| 630 |
113, 114, 94, 50, 0, 0, 124, 9, 11, 0, 0, 0, 0, 0, 0, 0, |
| 631 |
90, 0, 46, 22, 13, 111, 52, 20, 96, 24, 28, 74, 27, 123, 44, 66, |
| 632 |
0, 45, 2, 4, 48, 0, 0, 21, 0, 0, 0, 0, 0, 120, 122, 67, |
| 633 |
}; |
| 634 |
|
| 635 |
static void sunkbd_event(void *opaque, int ch) |
| 636 |
{
|
| 637 |
ChannelState *s = opaque; |
| 638 |
int release = ch & 0x80; |
| 639 |
|
| 640 |
ch = keycodes[ch & 0x7f];
|
| 641 |
KBD_DPRINTF("Keycode %d (%s)\n", ch, release? "release" : "press"); |
| 642 |
put_queue(s, ch | release); |
| 643 |
} |
| 644 |
|
| 645 |
static void handle_kbd_command(ChannelState *s, int val) |
| 646 |
{
|
| 647 |
KBD_DPRINTF("Command %d\n", val);
|
| 648 |
switch (val) {
|
| 649 |
case 1: // Reset, return type code |
| 650 |
clear_queue(s); |
| 651 |
put_queue(s, 0xff);
|
| 652 |
put_queue(s, 4); // Type 4 |
| 653 |
break;
|
| 654 |
case 7: // Query layout |
| 655 |
case 0xf: |
| 656 |
clear_queue(s); |
| 657 |
put_queue(s, 0xfe);
|
| 658 |
put_queue(s, 19); // XXX, layout? |
| 659 |
break;
|
| 660 |
default:
|
| 661 |
break;
|
| 662 |
} |
| 663 |
} |
| 664 |
|
| 665 |
static void sunmouse_event(void *opaque, |
| 666 |
int dx, int dy, int dz, int buttons_state) |
| 667 |
{
|
| 668 |
ChannelState *s = opaque; |
| 669 |
int ch;
|
| 670 |
|
| 671 |
MS_DPRINTF("dx=%d dy=%d buttons=%01x\n", dx, dy, buttons_state);
|
| 672 |
|
| 673 |
ch = 0x80 | 0x7; /* protocol start byte, no buttons pressed */ |
| 674 |
|
| 675 |
if (buttons_state & MOUSE_EVENT_LBUTTON)
|
| 676 |
ch ^= 0x4;
|
| 677 |
if (buttons_state & MOUSE_EVENT_MBUTTON)
|
| 678 |
ch ^= 0x2;
|
| 679 |
if (buttons_state & MOUSE_EVENT_RBUTTON)
|
| 680 |
ch ^= 0x1;
|
| 681 |
|
| 682 |
put_queue(s, ch); |
| 683 |
|
| 684 |
ch = dx; |
| 685 |
|
| 686 |
if (ch > 127) |
| 687 |
ch=127;
|
| 688 |
else if (ch < -127) |
| 689 |
ch=-127;
|
| 690 |
|
| 691 |
put_queue(s, ch & 0xff);
|
| 692 |
|
| 693 |
ch = -dy; |
| 694 |
|
| 695 |
if (ch > 127) |
| 696 |
ch=127;
|
| 697 |
else if (ch < -127) |
| 698 |
ch=-127;
|
| 699 |
|
| 700 |
put_queue(s, ch & 0xff);
|
| 701 |
|
| 702 |
// MSC protocol specify two extra motion bytes
|
| 703 |
|
| 704 |
put_queue(s, 0);
|
| 705 |
put_queue(s, 0);
|
| 706 |
} |
| 707 |
|
| 708 |
void slavio_serial_ms_kbd_init(target_phys_addr_t base, qemu_irq irq)
|
| 709 |
{
|
| 710 |
int slavio_serial_io_memory, i;
|
| 711 |
SerialState *s; |
| 712 |
|
| 713 |
s = qemu_mallocz(sizeof(SerialState));
|
| 714 |
if (!s)
|
| 715 |
return;
|
| 716 |
for (i = 0; i < 2; i++) { |
| 717 |
s->chn[i].irq = irq; |
| 718 |
s->chn[i].chn = 1 - i;
|
| 719 |
s->chn[i].chr = NULL;
|
| 720 |
} |
| 721 |
s->chn[0].otherchn = &s->chn[1]; |
| 722 |
s->chn[1].otherchn = &s->chn[0]; |
| 723 |
s->chn[0].type = mouse;
|
| 724 |
s->chn[1].type = kbd;
|
| 725 |
|
| 726 |
slavio_serial_io_memory = cpu_register_io_memory(0, slavio_serial_mem_read, slavio_serial_mem_write, s);
|
| 727 |
cpu_register_physical_memory(base, SERIAL_SIZE, slavio_serial_io_memory); |
| 728 |
|
| 729 |
qemu_add_mouse_event_handler(sunmouse_event, &s->chn[0], 0, "QEMU Sun Mouse"); |
| 730 |
qemu_add_kbd_event_handler(sunkbd_event, &s->chn[1]);
|
| 731 |
register_savevm("slavio_serial_mouse", base, 2, slavio_serial_save, slavio_serial_load, s); |
| 732 |
qemu_register_reset(slavio_serial_reset, s); |
| 733 |
slavio_serial_reset(s); |
| 734 |
} |