Revision d329a6fb hw/sb16.c
| b/hw/sb16.c | ||
|---|---|---|
| 26 | 26 |
#define MIN(a, b) ((a)>(b)?(b):(a)) |
| 27 | 27 |
#define LENOFA(a) ((int) (sizeof(a)/sizeof(a[0]))) |
| 28 | 28 |
|
| 29 |
#define log(...) fprintf (stderr, "sb16: " __VA_ARGS__) |
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| 29 |
#define log(...) do { \
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fprintf (stderr, "sb16: " __VA_ARGS__); \ |
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fputc ('\n', stderr); \
|
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} while (0) |
|
| 30 | 33 |
|
| 31 | 34 |
/* #define DEBUG_SB16 */ |
| 32 | 35 |
#ifdef DEBUG_SB16 |
| ... | ... | |
| 44 | 47 |
#define IO_WRITE_PROTO(name) \ |
| 45 | 48 |
void name (void *opaque, uint32_t nport, uint32_t val) |
| 46 | 49 |
|
| 50 |
static const char e3[] = "COPYRIGHT (C) CREATIVE TECHNOLOGY LTD, 1992."; |
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| 51 |
|
|
| 47 | 52 |
static struct {
|
| 48 | 53 |
int ver_lo; |
| 49 | 54 |
int ver_hi; |
| ... | ... | |
| 76 | 81 |
int v2x6; |
| 77 | 82 |
|
| 78 | 83 |
uint8_t in_data[10]; |
| 79 |
uint8_t out_data[10];
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| 84 |
uint8_t out_data[50];
|
|
| 80 | 85 |
|
| 81 | 86 |
int left_till_irq; |
| 82 | 87 |
|
| ... | ... | |
| 223 | 228 |
/* IMS uses those when probing for sound devices */ |
| 224 | 229 |
return; |
| 225 | 230 |
|
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case 0x04: |
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dsp->needed_bytes = 1; |
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break; |
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|
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case 0x05: |
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case 0x0e: |
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dsp->needed_bytes = 2; |
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break; |
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| 239 |
|
|
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case 0x0f: |
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dsp->needed_bytes = 1; |
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dsp_out_data (dsp, 0); |
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break; |
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|
|
| 226 | 245 |
case 0x10: |
| 227 | 246 |
dsp->needed_bytes = 1; |
| 228 | 247 |
break; |
| ... | ... | |
| 274 | 293 |
uint8_t d0; |
| 275 | 294 |
|
| 276 | 295 |
d0 = 4; |
| 277 |
if (dsp->fmt_signed) d0 |= 16;
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if (dsp->fmt_stereo) d0 |= 32;
|
|
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/* if (dsp->fmt_signed) d0 |= 16; */
|
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/* if (dsp->fmt_stereo) d0 |= 32; */
|
|
| 279 | 298 |
dma_cmd (cmd == 0x90 ? 0xc4 : 0xc0, d0, -1); |
| 280 | 299 |
cmd = -1; |
| 281 | 300 |
break; |
| ... | ... | |
| 324 | 343 |
dsp_out_data(dsp, sb.ver_hi); |
| 325 | 344 |
return; |
| 326 | 345 |
|
| 346 |
case 0xe3: |
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{
|
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int i; |
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for (i = sizeof (e3) - 1; i >= 0; --i) |
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dsp_out_data (dsp, e3[i]); |
|
| 351 |
return; |
|
| 352 |
} |
|
| 353 |
|
|
| 327 | 354 |
case 0xf2: |
| 328 | 355 |
dsp_out_data(dsp, 0xaa); |
| 329 | 356 |
dsp->mixer_regs[0x82] |= dsp->mixer_regs[0x80]; |
| ... | ... | |
| 360 | 387 |
} |
| 361 | 388 |
else {
|
| 362 | 389 |
switch (dsp->cmd) {
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| 390 |
case 0x05: |
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case 0x04: |
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| 392 |
case 0x0e: |
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| 393 |
case 0x0f: |
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break; |
|
| 363 | 395 |
|
| 364 | 396 |
case 0x10: |
| 365 | 397 |
break; |
| ... | ... | |
| 425 | 457 |
|
| 426 | 458 |
iport = nport - sb.port; |
| 427 | 459 |
|
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ldebug ("write %#x %#x\n", nport, iport);
|
|
| 428 | 461 |
switch (iport) {
|
| 429 | 462 |
case 0x6: |
| 463 |
control (0); |
|
| 430 | 464 |
if (0 == val) |
| 431 | 465 |
dsp->v2x6 = 0; |
| 432 | 466 |
else if ((1 == val) && (0 == dsp->v2x6)) {
|
| ... | ... | |
| 477 | 511 |
if (dsp->out_data_len) {
|
| 478 | 512 |
retval = dsp->out_data[--dsp->out_data_len]; |
| 479 | 513 |
} else {
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| 480 |
log("empty output buffer\n");
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log("empty output buffer");
|
|
| 481 | 515 |
goto error; |
| 482 | 516 |
} |
| 483 | 517 |
break; |
| ... | ... | |
| 487 | 521 |
break; |
| 488 | 522 |
|
| 489 | 523 |
case 0xd: /* timer interrupt clear */ |
| 490 |
log("timer interrupt clear\n");
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|
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log("timer interrupt clear");
|
|
| 491 | 525 |
goto error; |
| 492 | 526 |
|
| 493 | 527 |
case 0xe: /* data available status | irq 8 ack */ |
| ... | ... | |
| 669 | 703 |
case 10: |
| 670 | 704 |
return 8; |
| 671 | 705 |
default: |
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log ("bad irq %d\n", irq);
|
|
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log ("bad irq %d", irq);
|
|
| 673 | 707 |
return 2; |
| 674 | 708 |
} |
| 675 | 709 |
} |
| ... | ... | |
| 687 | 721 |
case 8: |
| 688 | 722 |
return 10; |
| 689 | 723 |
default: |
| 690 |
log ("bad irq magic %d\n", magic);
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log ("bad irq magic %d", magic);
|
|
| 691 | 725 |
return 2; |
| 692 | 726 |
} |
| 693 | 727 |
} |
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