root / hw / sb16.c @ 85571bc7
History | View | Annotate | Download (30.8 kB)
1 |
/*
|
---|---|
2 |
* QEMU Soundblaster 16 emulation
|
3 |
*
|
4 |
* Copyright (c) 2003-2004 Vassili Karpov (malc)
|
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 |
|
26 |
/* #define DEBUG */
|
27 |
#define AUDIO_CAP "sb16" |
28 |
#include "audio/audio.h" |
29 |
|
30 |
#define LENOFA(a) ((int) (sizeof(a)/sizeof(a[0]))) |
31 |
|
32 |
/* #define DEBUG_SB16_MOST */
|
33 |
|
34 |
#define IO_READ_PROTO(name) \
|
35 |
uint32_t name (void *opaque, uint32_t nport)
|
36 |
#define IO_WRITE_PROTO(name) \
|
37 |
void name (void *opaque, uint32_t nport, uint32_t val) |
38 |
|
39 |
static const char e3[] = "COPYRIGHT (C) CREATIVE TECHNOLOGY LTD, 1992."; |
40 |
|
41 |
static struct { |
42 |
int ver_lo;
|
43 |
int ver_hi;
|
44 |
int irq;
|
45 |
int dma;
|
46 |
int hdma;
|
47 |
int port;
|
48 |
} conf = {5, 4, 5, 1, 5, 0x220}; |
49 |
|
50 |
typedef struct SB16State { |
51 |
int irq;
|
52 |
int dma;
|
53 |
int hdma;
|
54 |
int port;
|
55 |
int ver;
|
56 |
|
57 |
int in_index;
|
58 |
int out_data_len;
|
59 |
int fmt_stereo;
|
60 |
int fmt_signed;
|
61 |
int fmt_bits;
|
62 |
audfmt_e fmt; |
63 |
int dma_auto;
|
64 |
int block_size;
|
65 |
int fifo;
|
66 |
int freq;
|
67 |
int time_const;
|
68 |
int speaker;
|
69 |
int needed_bytes;
|
70 |
int cmd;
|
71 |
int use_hdma;
|
72 |
int highspeed;
|
73 |
int can_write;
|
74 |
|
75 |
int v2x6;
|
76 |
|
77 |
uint8_t csp_param; |
78 |
uint8_t csp_value; |
79 |
uint8_t csp_mode; |
80 |
uint8_t csp_regs[256];
|
81 |
uint8_t csp_index; |
82 |
uint8_t csp_reg83[4];
|
83 |
int csp_reg83r;
|
84 |
int csp_reg83w;
|
85 |
|
86 |
uint8_t in2_data[10];
|
87 |
uint8_t out_data[50];
|
88 |
uint8_t test_reg; |
89 |
uint8_t last_read_byte; |
90 |
int nzero;
|
91 |
|
92 |
int left_till_irq;
|
93 |
|
94 |
int dma_running;
|
95 |
int bytes_per_second;
|
96 |
int align;
|
97 |
SWVoice *voice; |
98 |
|
99 |
QEMUTimer *ts, *aux_ts; |
100 |
/* mixer state */
|
101 |
int mixer_nreg;
|
102 |
uint8_t mixer_regs[256];
|
103 |
} SB16State; |
104 |
|
105 |
/* XXX: suppress that and use a context */
|
106 |
static struct SB16State dsp; |
107 |
|
108 |
static int magic_of_irq (int irq) |
109 |
{ |
110 |
switch (irq) {
|
111 |
case 5: |
112 |
return 2; |
113 |
case 7: |
114 |
return 4; |
115 |
case 9: |
116 |
return 1; |
117 |
case 10: |
118 |
return 8; |
119 |
default:
|
120 |
dolog ("bad irq %d\n", irq);
|
121 |
return 2; |
122 |
} |
123 |
} |
124 |
|
125 |
static int irq_of_magic (int magic) |
126 |
{ |
127 |
switch (magic) {
|
128 |
case 1: |
129 |
return 9; |
130 |
case 2: |
131 |
return 5; |
132 |
case 4: |
133 |
return 7; |
134 |
case 8: |
135 |
return 10; |
136 |
default:
|
137 |
dolog ("bad irq magic %d\n", magic);
|
138 |
return -1; |
139 |
} |
140 |
} |
141 |
|
142 |
#if 0
|
143 |
static void log_dsp (SB16State *dsp)
|
144 |
{
|
145 |
ldebug ("%s:%s:%d:%s:dmasize=%d:freq=%d:const=%d:speaker=%d\n",
|
146 |
dsp->fmt_stereo ? "Stereo" : "Mono",
|
147 |
dsp->fmt_signed ? "Signed" : "Unsigned",
|
148 |
dsp->fmt_bits,
|
149 |
dsp->dma_auto ? "Auto" : "Single",
|
150 |
dsp->block_size,
|
151 |
dsp->freq,
|
152 |
dsp->time_const,
|
153 |
dsp->speaker);
|
154 |
}
|
155 |
#endif
|
156 |
|
157 |
static void speaker (SB16State *s, int on) |
158 |
{ |
159 |
s->speaker = on; |
160 |
/* AUD_enable (s->voice, on); */
|
161 |
} |
162 |
|
163 |
static void control (SB16State *s, int hold) |
164 |
{ |
165 |
int dma = s->use_hdma ? s->hdma : s->dma;
|
166 |
s->dma_running = hold; |
167 |
|
168 |
ldebug ("hold %d high %d dma %d\n", hold, s->use_hdma, dma);
|
169 |
|
170 |
if (hold) {
|
171 |
DMA_hold_DREQ (dma); |
172 |
AUD_enable (s->voice, 1);
|
173 |
} |
174 |
else {
|
175 |
DMA_release_DREQ (dma); |
176 |
AUD_enable (s->voice, 0);
|
177 |
} |
178 |
} |
179 |
|
180 |
static void aux_timer (void *opaque) |
181 |
{ |
182 |
SB16State *s = opaque; |
183 |
s->can_write = 1;
|
184 |
pic_set_irq (s->irq, 1);
|
185 |
} |
186 |
|
187 |
#define DMA8_AUTO 1 |
188 |
#define DMA8_HIGH 2 |
189 |
|
190 |
static void dma_cmd8 (SB16State *s, int mask, int dma_len) |
191 |
{ |
192 |
s->fmt = AUD_FMT_U8; |
193 |
s->use_hdma = 0;
|
194 |
s->fmt_bits = 8;
|
195 |
s->fmt_signed = 0;
|
196 |
s->fmt_stereo = (s->mixer_regs[0x0e] & 2) != 0; |
197 |
if (-1 == s->time_const) { |
198 |
s->freq = 11025;
|
199 |
} |
200 |
else {
|
201 |
int tmp = (256 - s->time_const); |
202 |
s->freq = (1000000 + (tmp / 2)) / tmp; |
203 |
} |
204 |
|
205 |
if (-1 != dma_len) |
206 |
s->block_size = dma_len + 1;
|
207 |
|
208 |
s->freq >>= s->fmt_stereo; |
209 |
s->left_till_irq = s->block_size; |
210 |
s->bytes_per_second = (s->freq << s->fmt_stereo); |
211 |
/* s->highspeed = (mask & DMA8_HIGH) != 0; */
|
212 |
s->dma_auto = (mask & DMA8_AUTO) != 0;
|
213 |
s->align = (1 << s->fmt_stereo) - 1; |
214 |
|
215 |
ldebug ("freq %d, stereo %d, sign %d, bits %d, "
|
216 |
"dma %d, auto %d, fifo %d, high %d\n",
|
217 |
s->freq, s->fmt_stereo, s->fmt_signed, s->fmt_bits, |
218 |
s->block_size, s->dma_auto, s->fifo, s->highspeed); |
219 |
|
220 |
if (s->freq)
|
221 |
s->voice = AUD_open (s->voice, "sb16", s->freq,
|
222 |
1 << s->fmt_stereo, s->fmt);
|
223 |
|
224 |
control (s, 1);
|
225 |
speaker (s, 1);
|
226 |
} |
227 |
|
228 |
static void dma_cmd (SB16State *s, uint8_t cmd, uint8_t d0, int dma_len) |
229 |
{ |
230 |
s->use_hdma = cmd < 0xc0;
|
231 |
s->fifo = (cmd >> 1) & 1; |
232 |
s->dma_auto = (cmd >> 2) & 1; |
233 |
s->fmt_signed = (d0 >> 4) & 1; |
234 |
s->fmt_stereo = (d0 >> 5) & 1; |
235 |
|
236 |
switch (cmd >> 4) { |
237 |
case 11: |
238 |
s->fmt_bits = 16;
|
239 |
break;
|
240 |
|
241 |
case 12: |
242 |
s->fmt_bits = 8;
|
243 |
break;
|
244 |
} |
245 |
|
246 |
if (-1 != s->time_const) { |
247 |
#if 1 |
248 |
int tmp = 256 - s->time_const; |
249 |
s->freq = (1000000 + (tmp / 2)) / tmp; |
250 |
#else
|
251 |
/* s->freq = 1000000 / ((255 - s->time_const) << s->fmt_stereo); */
|
252 |
s->freq = 1000000 / ((255 - s->time_const)); |
253 |
#endif
|
254 |
s->time_const = -1;
|
255 |
} |
256 |
|
257 |
s->block_size = dma_len + 1;
|
258 |
s->block_size <<= (s->fmt_bits == 16);
|
259 |
if (!s->dma_auto) /* Miles Sound System ? */ |
260 |
s->block_size <<= s->fmt_stereo; |
261 |
|
262 |
ldebug ("freq %d, stereo %d, sign %d, bits %d, "
|
263 |
"dma %d, auto %d, fifo %d, high %d\n",
|
264 |
s->freq, s->fmt_stereo, s->fmt_signed, s->fmt_bits, |
265 |
s->block_size, s->dma_auto, s->fifo, s->highspeed); |
266 |
|
267 |
if (16 == s->fmt_bits) { |
268 |
if (s->fmt_signed) {
|
269 |
s->fmt = AUD_FMT_S16; |
270 |
} |
271 |
else {
|
272 |
s->fmt = AUD_FMT_U16; |
273 |
} |
274 |
} |
275 |
else {
|
276 |
if (s->fmt_signed) {
|
277 |
s->fmt = AUD_FMT_S8; |
278 |
} |
279 |
else {
|
280 |
s->fmt = AUD_FMT_U8; |
281 |
} |
282 |
} |
283 |
|
284 |
s->left_till_irq = s->block_size; |
285 |
|
286 |
s->bytes_per_second = (s->freq << s->fmt_stereo) << (s->fmt_bits == 16);
|
287 |
s->highspeed = 0;
|
288 |
s->align = (1 << (s->fmt_stereo + (s->fmt_bits == 16))) - 1; |
289 |
|
290 |
if (s->freq)
|
291 |
s->voice = AUD_open (s->voice, "sb16", s->freq,
|
292 |
1 << s->fmt_stereo, s->fmt);
|
293 |
|
294 |
control (s, 1);
|
295 |
speaker (s, 1);
|
296 |
} |
297 |
|
298 |
static inline void dsp_out_data (SB16State *s, uint8_t val) |
299 |
{ |
300 |
ldebug ("outdata %#x\n", val);
|
301 |
if (s->out_data_len < sizeof (s->out_data)) |
302 |
s->out_data[s->out_data_len++] = val; |
303 |
} |
304 |
|
305 |
static inline uint8_t dsp_get_data (SB16State *s) |
306 |
{ |
307 |
if (s->in_index)
|
308 |
return s->in2_data[--s->in_index];
|
309 |
else {
|
310 |
dolog ("buffer underflow\n");
|
311 |
return 0; |
312 |
} |
313 |
} |
314 |
|
315 |
static void command (SB16State *s, uint8_t cmd) |
316 |
{ |
317 |
ldebug ("command %#x\n", cmd);
|
318 |
|
319 |
if (cmd > 0xaf && cmd < 0xd0) { |
320 |
if (cmd & 8) { |
321 |
dolog ("ADC not yet supported (command %#x)\n", cmd);
|
322 |
} |
323 |
|
324 |
switch (cmd >> 4) { |
325 |
case 11: |
326 |
case 12: |
327 |
break;
|
328 |
default:
|
329 |
dolog ("%#x wrong bits\n", cmd);
|
330 |
} |
331 |
s->needed_bytes = 3;
|
332 |
} |
333 |
else {
|
334 |
switch (cmd) {
|
335 |
case 0x03: |
336 |
dsp_out_data (s, 0x10); /* s->csp_param); */ |
337 |
goto warn;
|
338 |
|
339 |
case 0x04: |
340 |
s->needed_bytes = 1;
|
341 |
goto warn;
|
342 |
|
343 |
case 0x05: |
344 |
s->needed_bytes = 2;
|
345 |
goto warn;
|
346 |
|
347 |
case 0x08: |
348 |
/* __asm__ ("int3"); */
|
349 |
goto warn;
|
350 |
|
351 |
case 0x0e: |
352 |
s->needed_bytes = 2;
|
353 |
goto warn;
|
354 |
|
355 |
case 0x09: |
356 |
dsp_out_data (s, 0xf8);
|
357 |
goto warn;
|
358 |
|
359 |
case 0x0f: |
360 |
s->needed_bytes = 1;
|
361 |
goto warn;
|
362 |
|
363 |
case 0x10: |
364 |
s->needed_bytes = 1;
|
365 |
goto warn;
|
366 |
|
367 |
case 0x14: |
368 |
s->needed_bytes = 2;
|
369 |
s->block_size = 0;
|
370 |
break;
|
371 |
|
372 |
case 0x20: /* Direct ADC, Juice/PL */ |
373 |
dsp_out_data (s, 0xff);
|
374 |
goto warn;
|
375 |
|
376 |
case 0x35: |
377 |
dolog ("MIDI command(0x35) not implemented\n");
|
378 |
break;
|
379 |
|
380 |
case 0x40: |
381 |
s->freq = -1;
|
382 |
s->time_const = -1;
|
383 |
s->needed_bytes = 1;
|
384 |
break;
|
385 |
|
386 |
case 0x41: |
387 |
s->freq = -1;
|
388 |
s->time_const = -1;
|
389 |
s->needed_bytes = 2;
|
390 |
break;
|
391 |
|
392 |
case 0x42: |
393 |
s->freq = -1;
|
394 |
s->time_const = -1;
|
395 |
s->needed_bytes = 2;
|
396 |
goto warn;
|
397 |
|
398 |
case 0x45: |
399 |
dsp_out_data (s, 0xaa);
|
400 |
goto warn;
|
401 |
|
402 |
case 0x47: /* Continue Auto-Initialize DMA 16bit */ |
403 |
break;
|
404 |
|
405 |
case 0x48: |
406 |
s->needed_bytes = 2;
|
407 |
break;
|
408 |
|
409 |
case 0x80: |
410 |
s->needed_bytes = 2;
|
411 |
break;
|
412 |
|
413 |
case 0x90: |
414 |
case 0x91: |
415 |
dma_cmd8 (s, ((cmd & 1) == 0) | DMA8_HIGH, -1); |
416 |
break;
|
417 |
|
418 |
case 0xd0: /* halt DMA operation. 8bit */ |
419 |
control (s, 0);
|
420 |
break;
|
421 |
|
422 |
case 0xd1: /* speaker on */ |
423 |
speaker (s, 1);
|
424 |
break;
|
425 |
|
426 |
case 0xd3: /* speaker off */ |
427 |
speaker (s, 0);
|
428 |
break;
|
429 |
|
430 |
case 0xd4: /* continue DMA operation. 8bit */ |
431 |
control (s, 1);
|
432 |
break;
|
433 |
|
434 |
case 0xd5: /* halt DMA operation. 16bit */ |
435 |
control (s, 0);
|
436 |
break;
|
437 |
|
438 |
case 0xd6: /* continue DMA operation. 16bit */ |
439 |
control (s, 1);
|
440 |
break;
|
441 |
|
442 |
case 0xd9: /* exit auto-init DMA after this block. 16bit */ |
443 |
s->dma_auto = 0;
|
444 |
break;
|
445 |
|
446 |
case 0xda: /* exit auto-init DMA after this block. 8bit */ |
447 |
s->dma_auto = 0;
|
448 |
break;
|
449 |
|
450 |
case 0xe0: |
451 |
s->needed_bytes = 1;
|
452 |
goto warn;
|
453 |
|
454 |
case 0xe1: |
455 |
dsp_out_data (s, s->ver & 0xff);
|
456 |
dsp_out_data (s, s->ver >> 8);
|
457 |
break;
|
458 |
|
459 |
case 0xe2: |
460 |
s->needed_bytes = 1;
|
461 |
goto warn;
|
462 |
|
463 |
case 0xe3: |
464 |
{ |
465 |
int i;
|
466 |
for (i = sizeof (e3) - 1; i >= 0; --i) |
467 |
dsp_out_data (s, e3[i]); |
468 |
} |
469 |
break;
|
470 |
|
471 |
case 0xe4: /* write test reg */ |
472 |
s->needed_bytes = 1;
|
473 |
break;
|
474 |
|
475 |
case 0xe7: |
476 |
dolog ("Attempt to probe for ESS (0xe7)?\n");
|
477 |
return;
|
478 |
|
479 |
case 0xe8: /* read test reg */ |
480 |
dsp_out_data (s, s->test_reg); |
481 |
break;
|
482 |
|
483 |
case 0xf2: |
484 |
case 0xf3: |
485 |
dsp_out_data (s, 0xaa);
|
486 |
s->mixer_regs[0x82] |= (cmd == 0xf2) ? 1 : 2; |
487 |
pic_set_irq (s->irq, 1);
|
488 |
break;
|
489 |
|
490 |
case 0xf9: |
491 |
s->needed_bytes = 1;
|
492 |
goto warn;
|
493 |
|
494 |
case 0xfa: |
495 |
dsp_out_data (s, 0);
|
496 |
goto warn;
|
497 |
|
498 |
case 0xfc: /* FIXME */ |
499 |
dsp_out_data (s, 0);
|
500 |
goto warn;
|
501 |
|
502 |
default:
|
503 |
dolog ("unrecognized command %#x\n", cmd);
|
504 |
return;
|
505 |
} |
506 |
} |
507 |
|
508 |
s->cmd = cmd; |
509 |
if (!s->needed_bytes)
|
510 |
ldebug ("\n");
|
511 |
return;
|
512 |
|
513 |
warn:
|
514 |
dolog ("warning command %#x,%d is not trully understood yet\n",
|
515 |
cmd, s->needed_bytes); |
516 |
s->cmd = cmd; |
517 |
return;
|
518 |
} |
519 |
|
520 |
static uint16_t dsp_get_lohi (SB16State *s)
|
521 |
{ |
522 |
uint8_t hi = dsp_get_data (s); |
523 |
uint8_t lo = dsp_get_data (s); |
524 |
return (hi << 8) | lo; |
525 |
} |
526 |
|
527 |
static uint16_t dsp_get_hilo (SB16State *s)
|
528 |
{ |
529 |
uint8_t lo = dsp_get_data (s); |
530 |
uint8_t hi = dsp_get_data (s); |
531 |
return (hi << 8) | lo; |
532 |
} |
533 |
|
534 |
static void complete (SB16State *s) |
535 |
{ |
536 |
int d0, d1, d2;
|
537 |
ldebug ("complete command %#x, in_index %d, needed_bytes %d\n",
|
538 |
s->cmd, s->in_index, s->needed_bytes); |
539 |
|
540 |
if (s->cmd > 0xaf && s->cmd < 0xd0) { |
541 |
d2 = dsp_get_data (s); |
542 |
d1 = dsp_get_data (s); |
543 |
d0 = dsp_get_data (s); |
544 |
|
545 |
if (s->cmd & 8) { |
546 |
dolog ("ADC params cmd = %#x d0 = %d, d1 = %d, d2 = %d\n",
|
547 |
s->cmd, d0, d1, d2); |
548 |
} |
549 |
else {
|
550 |
ldebug ("cmd = %#x d0 = %d, d1 = %d, d2 = %d\n",
|
551 |
s->cmd, d0, d1, d2); |
552 |
dma_cmd (s, s->cmd, d0, d1 + (d2 << 8));
|
553 |
} |
554 |
} |
555 |
else {
|
556 |
switch (s->cmd) {
|
557 |
case 0x04: |
558 |
s->csp_mode = dsp_get_data (s); |
559 |
s->csp_reg83r = 0;
|
560 |
s->csp_reg83w = 0;
|
561 |
ldebug ("CSP command 0x04: mode=%#x\n", s->csp_mode);
|
562 |
break;
|
563 |
|
564 |
case 0x05: |
565 |
s->csp_param = dsp_get_data (s); |
566 |
s->csp_value = dsp_get_data (s); |
567 |
ldebug ("CSP command 0x05: param=%#x value=%#x\n",
|
568 |
s->csp_param, |
569 |
s->csp_value); |
570 |
break;
|
571 |
|
572 |
case 0x0e: |
573 |
d0 = dsp_get_data (s); |
574 |
d1 = dsp_get_data (s); |
575 |
ldebug ("write CSP register %d <- %#x\n", d1, d0);
|
576 |
if (d1 == 0x83) { |
577 |
ldebug ("0x83[%d] <- %#x\n", s->csp_reg83r, d0);
|
578 |
s->csp_reg83[s->csp_reg83r % 4] = d0;
|
579 |
s->csp_reg83r += 1;
|
580 |
} |
581 |
else
|
582 |
s->csp_regs[d1] = d0; |
583 |
break;
|
584 |
|
585 |
case 0x0f: |
586 |
d0 = dsp_get_data (s); |
587 |
ldebug ("read CSP register %#x -> %#x, mode=%#x\n",
|
588 |
d0, s->csp_regs[d0], s->csp_mode); |
589 |
if (d0 == 0x83) { |
590 |
ldebug ("0x83[%d] -> %#x\n",
|
591 |
s->csp_reg83w, |
592 |
s->csp_reg83[s->csp_reg83w % 4]);
|
593 |
dsp_out_data (s, s->csp_reg83[s->csp_reg83w % 4]);
|
594 |
s->csp_reg83w += 1;
|
595 |
} |
596 |
else
|
597 |
dsp_out_data (s, s->csp_regs[d0]); |
598 |
break;
|
599 |
|
600 |
case 0x10: |
601 |
d0 = dsp_get_data (s); |
602 |
dolog ("cmd 0x10 d0=%#x\n", d0);
|
603 |
break;
|
604 |
|
605 |
case 0x14: |
606 |
dma_cmd8 (s, 0, dsp_get_lohi (s));
|
607 |
/* s->can_write = 0; */
|
608 |
/* qemu_mod_timer (s->aux_ts, qemu_get_clock (vm_clock) + (ticks_per_sec * 320) / 1000000); */
|
609 |
break;
|
610 |
|
611 |
case 0x40: |
612 |
s->time_const = dsp_get_data (s); |
613 |
ldebug ("set time const %d\n", s->time_const);
|
614 |
break;
|
615 |
|
616 |
case 0x42: /* FT2 sets output freq with this, go figure */ |
617 |
dolog ("cmd 0x42 might not do what it think it should\n");
|
618 |
|
619 |
case 0x41: |
620 |
s->freq = dsp_get_hilo (s); |
621 |
ldebug ("set freq %d\n", s->freq);
|
622 |
break;
|
623 |
|
624 |
case 0x48: |
625 |
s->block_size = dsp_get_lohi (s); |
626 |
/* s->highspeed = 1; */
|
627 |
ldebug ("set dma block len %d\n", s->block_size);
|
628 |
break;
|
629 |
|
630 |
case 0x80: |
631 |
{ |
632 |
int samples, bytes;
|
633 |
int64_t ticks; |
634 |
|
635 |
if (-1 == s->freq) |
636 |
s->freq = 11025;
|
637 |
samples = dsp_get_lohi (s); |
638 |
bytes = samples << s->fmt_stereo << (s->fmt_bits == 16);
|
639 |
ticks = ticks_per_sec / (s->freq / bytes); |
640 |
if (ticks < ticks_per_sec / 1024) |
641 |
pic_set_irq (s->irq, 1);
|
642 |
else
|
643 |
qemu_mod_timer (s->aux_ts, qemu_get_clock (vm_clock) + ticks); |
644 |
ldebug ("mix silence %d %d %lld\n", samples, bytes, ticks);
|
645 |
} |
646 |
break;
|
647 |
|
648 |
case 0xe0: |
649 |
d0 = dsp_get_data (s); |
650 |
s->out_data_len = 0;
|
651 |
ldebug ("E0 data = %#x\n", d0);
|
652 |
dsp_out_data(s, ~d0); |
653 |
break;
|
654 |
|
655 |
case 0xe2: |
656 |
d0 = dsp_get_data (s); |
657 |
dolog ("E2 = %#x\n", d0);
|
658 |
break;
|
659 |
|
660 |
case 0xe4: |
661 |
s->test_reg = dsp_get_data (s); |
662 |
break;
|
663 |
|
664 |
case 0xf9: |
665 |
d0 = dsp_get_data (s); |
666 |
ldebug ("command 0xf9 with %#x\n", d0);
|
667 |
switch (d0) {
|
668 |
case 0x0e: |
669 |
dsp_out_data (s, 0xff);
|
670 |
break;
|
671 |
|
672 |
case 0x0f: |
673 |
dsp_out_data (s, 0x07);
|
674 |
break;
|
675 |
|
676 |
case 0x37: |
677 |
dsp_out_data (s, 0x38);
|
678 |
break;
|
679 |
|
680 |
default:
|
681 |
dsp_out_data (s, 0x00);
|
682 |
break;
|
683 |
} |
684 |
break;
|
685 |
|
686 |
default:
|
687 |
dolog ("complete: unrecognized command %#x\n", s->cmd);
|
688 |
return;
|
689 |
} |
690 |
} |
691 |
|
692 |
ldebug ("\n");
|
693 |
s->cmd = -1;
|
694 |
return;
|
695 |
} |
696 |
|
697 |
static void reset (SB16State *s) |
698 |
{ |
699 |
pic_set_irq (s->irq, 0);
|
700 |
if (s->dma_auto) {
|
701 |
pic_set_irq (s->irq, 1);
|
702 |
pic_set_irq (s->irq, 0);
|
703 |
} |
704 |
|
705 |
s->mixer_regs[0x82] = 0; |
706 |
s->dma_auto = 0;
|
707 |
s->in_index = 0;
|
708 |
s->out_data_len = 0;
|
709 |
s->left_till_irq = 0;
|
710 |
s->needed_bytes = 0;
|
711 |
s->block_size = -1;
|
712 |
s->nzero = 0;
|
713 |
s->highspeed = 0;
|
714 |
s->v2x6 = 0;
|
715 |
|
716 |
dsp_out_data(s, 0xaa);
|
717 |
speaker (s, 0);
|
718 |
control (s, 0);
|
719 |
} |
720 |
|
721 |
static IO_WRITE_PROTO (dsp_write)
|
722 |
{ |
723 |
SB16State *s = opaque; |
724 |
int iport;
|
725 |
|
726 |
iport = nport - s->port; |
727 |
|
728 |
ldebug ("write %#x <- %#x\n", nport, val);
|
729 |
switch (iport) {
|
730 |
case 0x06: |
731 |
switch (val) {
|
732 |
case 0x00: |
733 |
if (s->v2x6 == 1) { |
734 |
if (0 && s->highspeed) { |
735 |
s->highspeed = 0;
|
736 |
pic_set_irq (s->irq, 0);
|
737 |
control (s, 0);
|
738 |
} |
739 |
else
|
740 |
reset (s); |
741 |
} |
742 |
s->v2x6 = 0;
|
743 |
break;
|
744 |
|
745 |
case 0x01: |
746 |
case 0x03: /* FreeBSD kludge */ |
747 |
s->v2x6 = 1;
|
748 |
break;
|
749 |
|
750 |
case 0xc6: |
751 |
s->v2x6 = 0; /* Prince of Persia, csp.sys, diagnose.exe */ |
752 |
break;
|
753 |
|
754 |
case 0xb8: /* Panic */ |
755 |
reset (s); |
756 |
break;
|
757 |
|
758 |
case 0x39: |
759 |
dsp_out_data (s, 0x38);
|
760 |
reset (s); |
761 |
s->v2x6 = 0x39;
|
762 |
break;
|
763 |
|
764 |
default:
|
765 |
s->v2x6 = val; |
766 |
break;
|
767 |
} |
768 |
break;
|
769 |
|
770 |
case 0x0c: /* write data or command | write status */ |
771 |
/* if (s->highspeed) */
|
772 |
/* break; */
|
773 |
|
774 |
if (0 == s->needed_bytes) { |
775 |
command (s, val); |
776 |
#if 0
|
777 |
if (0 == s->needed_bytes) {
|
778 |
log_dsp (s);
|
779 |
}
|
780 |
#endif
|
781 |
} |
782 |
else {
|
783 |
if (s->in_index == sizeof (s->in2_data)) { |
784 |
dolog ("in data overrun\n");
|
785 |
} |
786 |
else {
|
787 |
s->in2_data[s->in_index++] = val; |
788 |
if (s->in_index == s->needed_bytes) {
|
789 |
s->needed_bytes = 0;
|
790 |
complete (s); |
791 |
#if 0
|
792 |
log_dsp (s);
|
793 |
#endif
|
794 |
} |
795 |
} |
796 |
} |
797 |
break;
|
798 |
|
799 |
default:
|
800 |
ldebug ("(nport=%#x, val=%#x)\n", nport, val);
|
801 |
break;
|
802 |
} |
803 |
} |
804 |
|
805 |
static IO_READ_PROTO (dsp_read)
|
806 |
{ |
807 |
SB16State *s = opaque; |
808 |
int iport, retval, ack = 0; |
809 |
|
810 |
iport = nport - s->port; |
811 |
|
812 |
switch (iport) {
|
813 |
case 0x06: /* reset */ |
814 |
retval = 0xff;
|
815 |
break;
|
816 |
|
817 |
case 0x0a: /* read data */ |
818 |
if (s->out_data_len) {
|
819 |
retval = s->out_data[--s->out_data_len]; |
820 |
s->last_read_byte = retval; |
821 |
} |
822 |
else {
|
823 |
dolog ("empty output buffer\n");
|
824 |
retval = s->last_read_byte; |
825 |
/* goto error; */
|
826 |
} |
827 |
break;
|
828 |
|
829 |
case 0x0c: /* 0 can write */ |
830 |
retval = s->can_write ? 0 : 0x80; |
831 |
break;
|
832 |
|
833 |
case 0x0d: /* timer interrupt clear */ |
834 |
/* dolog ("timer interrupt clear\n"); */
|
835 |
retval = 0;
|
836 |
break;
|
837 |
|
838 |
case 0x0e: /* data available status | irq 8 ack */ |
839 |
retval = (!s->out_data_len || s->highspeed) ? 0 : 0x80; |
840 |
if (s->mixer_regs[0x82] & 1) { |
841 |
ack = 1;
|
842 |
s->mixer_regs[0x82] &= 1; |
843 |
pic_set_irq (s->irq, 0);
|
844 |
} |
845 |
break;
|
846 |
|
847 |
case 0x0f: /* irq 16 ack */ |
848 |
retval = 0xff;
|
849 |
if (s->mixer_regs[0x82] & 2) { |
850 |
ack = 1;
|
851 |
s->mixer_regs[0x82] &= 2; |
852 |
pic_set_irq (s->irq, 0);
|
853 |
} |
854 |
break;
|
855 |
|
856 |
default:
|
857 |
goto error;
|
858 |
} |
859 |
|
860 |
if (!ack)
|
861 |
ldebug ("read %#x -> %#x\n", nport, retval);
|
862 |
|
863 |
return retval;
|
864 |
|
865 |
error:
|
866 |
dolog ("WARNING dsp_read %#x error\n", nport);
|
867 |
return 0xff; |
868 |
} |
869 |
|
870 |
static void reset_mixer (SB16State *s) |
871 |
{ |
872 |
int i;
|
873 |
|
874 |
memset (s->mixer_regs, 0xff, 0x7f); |
875 |
memset (s->mixer_regs + 0x83, 0xff, sizeof (s->mixer_regs) - 0x83); |
876 |
|
877 |
s->mixer_regs[0x02] = 4; /* master volume 3bits */ |
878 |
s->mixer_regs[0x06] = 4; /* MIDI volume 3bits */ |
879 |
s->mixer_regs[0x08] = 0; /* CD volume 3bits */ |
880 |
s->mixer_regs[0x0a] = 0; /* voice volume 2bits */ |
881 |
|
882 |
/* d5=input filt, d3=lowpass filt, d1,d2=input source */
|
883 |
s->mixer_regs[0x0c] = 0; |
884 |
|
885 |
/* d5=output filt, d1=stereo switch */
|
886 |
s->mixer_regs[0x0e] = 0; |
887 |
|
888 |
/* voice volume L d5,d7, R d1,d3 */
|
889 |
s->mixer_regs[0x04] = (4 << 5) | (4 << 1); |
890 |
/* master ... */
|
891 |
s->mixer_regs[0x22] = (4 << 5) | (4 << 1); |
892 |
/* MIDI ... */
|
893 |
s->mixer_regs[0x26] = (4 << 5) | (4 << 1); |
894 |
|
895 |
for (i = 0x30; i < 0x48; i++) { |
896 |
s->mixer_regs[i] = 0x20;
|
897 |
} |
898 |
} |
899 |
|
900 |
static IO_WRITE_PROTO(mixer_write_indexb)
|
901 |
{ |
902 |
SB16State *s = opaque; |
903 |
s->mixer_nreg = val; |
904 |
} |
905 |
|
906 |
static IO_WRITE_PROTO(mixer_write_datab)
|
907 |
{ |
908 |
SB16State *s = opaque; |
909 |
|
910 |
ldebug ("mixer_write [%#x] <- %#x\n", s->mixer_nreg, val);
|
911 |
if (s->mixer_nreg > sizeof (s->mixer_regs)) |
912 |
return;
|
913 |
|
914 |
switch (s->mixer_nreg) {
|
915 |
case 0x00: |
916 |
reset_mixer (s); |
917 |
break;
|
918 |
|
919 |
case 0x80: |
920 |
{ |
921 |
int irq = irq_of_magic (val);
|
922 |
ldebug ("setting irq to %d (val=%#x)\n", irq, val);
|
923 |
if (irq > 0) |
924 |
s->irq = irq; |
925 |
} |
926 |
break;
|
927 |
|
928 |
case 0x81: |
929 |
{ |
930 |
int dma, hdma;
|
931 |
|
932 |
dma = lsbindex (val & 0xf);
|
933 |
hdma = lsbindex (val & 0xf0);
|
934 |
dolog ("attempt to set DMA register 8bit %d, 16bit %d (val=%#x)\n",
|
935 |
dma, hdma, val); |
936 |
#if 0
|
937 |
s->dma = dma;
|
938 |
s->hdma = hdma;
|
939 |
#endif
|
940 |
} |
941 |
break;
|
942 |
|
943 |
case 0x82: |
944 |
dolog ("attempt to write into IRQ status register (val=%#x)\n",
|
945 |
val); |
946 |
return;
|
947 |
|
948 |
default:
|
949 |
if (s->mixer_nreg >= 0x80) |
950 |
dolog ("attempt to write mixer[%#x] <- %#x\n", s->mixer_nreg, val);
|
951 |
break;
|
952 |
} |
953 |
|
954 |
s->mixer_regs[s->mixer_nreg] = val; |
955 |
} |
956 |
|
957 |
static IO_WRITE_PROTO(mixer_write_indexw)
|
958 |
{ |
959 |
mixer_write_indexb (opaque, nport, val & 0xff);
|
960 |
mixer_write_datab (opaque, nport, (val >> 8) & 0xff); |
961 |
} |
962 |
|
963 |
static IO_READ_PROTO(mixer_read)
|
964 |
{ |
965 |
SB16State *s = opaque; |
966 |
ldebug ("mixer_read[%#x] -> %#x\n",
|
967 |
s->mixer_nreg, s->mixer_regs[s->mixer_nreg]); |
968 |
return s->mixer_regs[s->mixer_nreg];
|
969 |
} |
970 |
|
971 |
static int write_audio (SB16State *s, int nchan, int dma_pos, |
972 |
int dma_len, int len) |
973 |
{ |
974 |
int temp, net;
|
975 |
uint8_t tmpbuf[4096];
|
976 |
|
977 |
temp = len; |
978 |
net = 0;
|
979 |
|
980 |
while (temp) {
|
981 |
int left = dma_len - dma_pos;
|
982 |
int to_copy, copied;
|
983 |
|
984 |
to_copy = audio_MIN (temp, left); |
985 |
if (to_copy > sizeof(tmpbuf)) |
986 |
to_copy = sizeof(tmpbuf);
|
987 |
|
988 |
copied = DMA_read_memory (nchan, tmpbuf, dma_pos, to_copy); |
989 |
copied = AUD_write (s->voice, tmpbuf, copied); |
990 |
|
991 |
temp -= copied; |
992 |
dma_pos = (dma_pos + copied) % dma_len; |
993 |
net += copied; |
994 |
|
995 |
if (!copied)
|
996 |
break;
|
997 |
} |
998 |
|
999 |
return net;
|
1000 |
} |
1001 |
|
1002 |
static int SB_read_DMA (void *opaque, int nchan, int dma_pos, int dma_len) |
1003 |
{ |
1004 |
SB16State *s = opaque; |
1005 |
int free, rfree, till, copy, written, elapsed;
|
1006 |
|
1007 |
if (s->left_till_irq < 0) { |
1008 |
s->left_till_irq = s->block_size; |
1009 |
} |
1010 |
|
1011 |
elapsed = AUD_calc_elapsed (s->voice); |
1012 |
free = elapsed;/* AUD_get_free (s->voice); */
|
1013 |
rfree = free; |
1014 |
free = audio_MIN (free, elapsed) & ~s->align; |
1015 |
|
1016 |
if ((free <= 0) || !dma_len) { |
1017 |
return dma_pos;
|
1018 |
} |
1019 |
|
1020 |
copy = free; |
1021 |
till = s->left_till_irq; |
1022 |
|
1023 |
#ifdef DEBUG_SB16_MOST
|
1024 |
dolog ("pos:%06d free:%d,%d till:%d len:%d\n",
|
1025 |
dma_pos, free, AUD_get_free (s->voice), till, dma_len); |
1026 |
#endif
|
1027 |
|
1028 |
if (till <= copy) {
|
1029 |
if (0 == s->dma_auto) { |
1030 |
copy = till; |
1031 |
} |
1032 |
} |
1033 |
|
1034 |
written = write_audio (s, nchan, dma_pos, dma_len, copy); |
1035 |
dma_pos = (dma_pos + written) % dma_len; |
1036 |
s->left_till_irq -= written; |
1037 |
|
1038 |
if (s->left_till_irq <= 0) { |
1039 |
s->mixer_regs[0x82] |= (nchan & 4) ? 2 : 1; |
1040 |
pic_set_irq (s->irq, 1);
|
1041 |
if (0 == s->dma_auto) { |
1042 |
control (s, 0);
|
1043 |
speaker (s, 0);
|
1044 |
} |
1045 |
} |
1046 |
|
1047 |
#ifdef DEBUG_SB16_MOST
|
1048 |
ldebug ("pos %5d free %5d size %5d till % 5d copy %5d dma size %5d\n",
|
1049 |
dma_pos, free, dma_len, s->left_till_irq, copy, s->block_size); |
1050 |
#endif
|
1051 |
|
1052 |
while (s->left_till_irq <= 0) { |
1053 |
s->left_till_irq = s->block_size + s->left_till_irq; |
1054 |
} |
1055 |
|
1056 |
AUD_adjust (s->voice, written); |
1057 |
return dma_pos;
|
1058 |
} |
1059 |
|
1060 |
void SB_timer (void *opaque) |
1061 |
{ |
1062 |
SB16State *s = opaque; |
1063 |
AUD_run (); |
1064 |
qemu_mod_timer (s->ts, qemu_get_clock (vm_clock) + 1);
|
1065 |
} |
1066 |
|
1067 |
static void SB_save (QEMUFile *f, void *opaque) |
1068 |
{ |
1069 |
SB16State *s = opaque; |
1070 |
|
1071 |
qemu_put_be32s (f, &s->irq); |
1072 |
qemu_put_be32s (f, &s->dma); |
1073 |
qemu_put_be32s (f, &s->hdma); |
1074 |
qemu_put_be32s (f, &s->port); |
1075 |
qemu_put_be32s (f, &s->ver); |
1076 |
qemu_put_be32s (f, &s->in_index); |
1077 |
qemu_put_be32s (f, &s->out_data_len); |
1078 |
qemu_put_be32s (f, &s->fmt_stereo); |
1079 |
qemu_put_be32s (f, &s->fmt_signed); |
1080 |
qemu_put_be32s (f, &s->fmt_bits); |
1081 |
qemu_put_be32s (f, &s->fmt); |
1082 |
qemu_put_be32s (f, &s->dma_auto); |
1083 |
qemu_put_be32s (f, &s->block_size); |
1084 |
qemu_put_be32s (f, &s->fifo); |
1085 |
qemu_put_be32s (f, &s->freq); |
1086 |
qemu_put_be32s (f, &s->time_const); |
1087 |
qemu_put_be32s (f, &s->speaker); |
1088 |
qemu_put_be32s (f, &s->needed_bytes); |
1089 |
qemu_put_be32s (f, &s->cmd); |
1090 |
qemu_put_be32s (f, &s->use_hdma); |
1091 |
qemu_put_be32s (f, &s->highspeed); |
1092 |
qemu_put_be32s (f, &s->can_write); |
1093 |
qemu_put_be32s (f, &s->v2x6); |
1094 |
|
1095 |
qemu_put_8s (f, &s->csp_param); |
1096 |
qemu_put_8s (f, &s->csp_value); |
1097 |
qemu_put_8s (f, &s->csp_mode); |
1098 |
qemu_put_8s (f, &s->csp_param); |
1099 |
qemu_put_buffer (f, s->csp_regs, 256);
|
1100 |
qemu_put_8s (f, &s->csp_index); |
1101 |
qemu_put_buffer (f, s->csp_reg83, 4);
|
1102 |
qemu_put_be32s (f, &s->csp_reg83r); |
1103 |
qemu_put_be32s (f, &s->csp_reg83w); |
1104 |
|
1105 |
qemu_put_buffer (f, s->in2_data, sizeof (s->in2_data));
|
1106 |
qemu_put_buffer (f, s->out_data, sizeof (s->out_data));
|
1107 |
qemu_put_8s (f, &s->test_reg); |
1108 |
qemu_put_8s (f, &s->last_read_byte); |
1109 |
|
1110 |
qemu_put_be32s (f, &s->nzero); |
1111 |
qemu_put_be32s (f, &s->left_till_irq); |
1112 |
qemu_put_be32s (f, &s->dma_running); |
1113 |
qemu_put_be32s (f, &s->bytes_per_second); |
1114 |
qemu_put_be32s (f, &s->align); |
1115 |
|
1116 |
qemu_put_be32s (f, &s->mixer_nreg); |
1117 |
qemu_put_buffer (f, s->mixer_regs, 256);
|
1118 |
} |
1119 |
|
1120 |
static int SB_load (QEMUFile *f, void *opaque, int version_id) |
1121 |
{ |
1122 |
SB16State *s = opaque; |
1123 |
|
1124 |
if (version_id != 1) |
1125 |
return -EINVAL;
|
1126 |
|
1127 |
qemu_get_be32s (f, &s->irq); |
1128 |
qemu_get_be32s (f, &s->dma); |
1129 |
qemu_get_be32s (f, &s->hdma); |
1130 |
qemu_get_be32s (f, &s->port); |
1131 |
qemu_get_be32s (f, &s->ver); |
1132 |
qemu_get_be32s (f, &s->in_index); |
1133 |
qemu_get_be32s (f, &s->out_data_len); |
1134 |
qemu_get_be32s (f, &s->fmt_stereo); |
1135 |
qemu_get_be32s (f, &s->fmt_signed); |
1136 |
qemu_get_be32s (f, &s->fmt_bits); |
1137 |
qemu_get_be32s (f, &s->fmt); |
1138 |
qemu_get_be32s (f, &s->dma_auto); |
1139 |
qemu_get_be32s (f, &s->block_size); |
1140 |
qemu_get_be32s (f, &s->fifo); |
1141 |
qemu_get_be32s (f, &s->freq); |
1142 |
qemu_get_be32s (f, &s->time_const); |
1143 |
qemu_get_be32s (f, &s->speaker); |
1144 |
qemu_get_be32s (f, &s->needed_bytes); |
1145 |
qemu_get_be32s (f, &s->cmd); |
1146 |
qemu_get_be32s (f, &s->use_hdma); |
1147 |
qemu_get_be32s (f, &s->highspeed); |
1148 |
qemu_get_be32s (f, &s->can_write); |
1149 |
qemu_get_be32s (f, &s->v2x6); |
1150 |
|
1151 |
qemu_get_8s (f, &s->csp_param); |
1152 |
qemu_get_8s (f, &s->csp_value); |
1153 |
qemu_get_8s (f, &s->csp_mode); |
1154 |
qemu_get_8s (f, &s->csp_param); |
1155 |
qemu_get_buffer (f, s->csp_regs, 256);
|
1156 |
qemu_get_8s (f, &s->csp_index); |
1157 |
qemu_get_buffer (f, s->csp_reg83, 4);
|
1158 |
qemu_get_be32s (f, &s->csp_reg83r); |
1159 |
qemu_get_be32s (f, &s->csp_reg83w); |
1160 |
|
1161 |
qemu_get_buffer (f, s->in2_data, sizeof (s->in2_data));
|
1162 |
qemu_get_buffer (f, s->out_data, sizeof (s->out_data));
|
1163 |
qemu_get_8s (f, &s->test_reg); |
1164 |
qemu_get_8s (f, &s->last_read_byte); |
1165 |
|
1166 |
qemu_get_be32s (f, &s->nzero); |
1167 |
qemu_get_be32s (f, &s->left_till_irq); |
1168 |
qemu_get_be32s (f, &s->dma_running); |
1169 |
qemu_get_be32s (f, &s->bytes_per_second); |
1170 |
qemu_get_be32s (f, &s->align); |
1171 |
|
1172 |
qemu_get_be32s (f, &s->mixer_nreg); |
1173 |
qemu_get_buffer (f, s->mixer_regs, 256);
|
1174 |
|
1175 |
if (s->voice)
|
1176 |
AUD_reset (s->voice); |
1177 |
|
1178 |
if (s->dma_running) {
|
1179 |
if (s->freq)
|
1180 |
s->voice = AUD_open (s->voice, "sb16", s->freq,
|
1181 |
1 << s->fmt_stereo, s->fmt);
|
1182 |
|
1183 |
control (s, 1);
|
1184 |
speaker (s, s->speaker); |
1185 |
} |
1186 |
return 0; |
1187 |
} |
1188 |
|
1189 |
void SB16_init (void) |
1190 |
{ |
1191 |
SB16State *s = &dsp; |
1192 |
int i;
|
1193 |
static const uint8_t dsp_write_ports[] = {0x6, 0xc}; |
1194 |
static const uint8_t dsp_read_ports[] = {0x6, 0xa, 0xc, 0xd, 0xe, 0xf}; |
1195 |
|
1196 |
s->ts = qemu_new_timer (vm_clock, SB_timer, s); |
1197 |
if (!s->ts)
|
1198 |
return;
|
1199 |
|
1200 |
s->irq = conf.irq; |
1201 |
s->dma = conf.dma; |
1202 |
s->hdma = conf.hdma; |
1203 |
s->port = conf.port; |
1204 |
s->ver = conf.ver_lo | (conf.ver_hi << 8);
|
1205 |
|
1206 |
s->mixer_regs[0x80] = magic_of_irq (s->irq);
|
1207 |
s->mixer_regs[0x81] = (1 << s->dma) | (1 << s->hdma); |
1208 |
s->mixer_regs[0x82] = 2 << 5; |
1209 |
|
1210 |
s->csp_regs[5] = 1; |
1211 |
s->csp_regs[9] = 0xf8; |
1212 |
|
1213 |
reset_mixer (s); |
1214 |
s->aux_ts = qemu_new_timer (vm_clock, aux_timer, s); |
1215 |
if (!s->aux_ts)
|
1216 |
return;
|
1217 |
|
1218 |
for (i = 0; i < LENOFA (dsp_write_ports); i++) { |
1219 |
register_ioport_write (s->port + dsp_write_ports[i], 1, 1, dsp_write, s); |
1220 |
} |
1221 |
|
1222 |
for (i = 0; i < LENOFA (dsp_read_ports); i++) { |
1223 |
register_ioport_read (s->port + dsp_read_ports[i], 1, 1, dsp_read, s); |
1224 |
} |
1225 |
|
1226 |
register_ioport_write (s->port + 0x4, 1, 1, mixer_write_indexb, s); |
1227 |
register_ioport_write (s->port + 0x4, 1, 2, mixer_write_indexw, s); |
1228 |
register_ioport_read (s->port + 0x5, 1, 1, mixer_read, s); |
1229 |
register_ioport_write (s->port + 0x5, 1, 1, mixer_write_datab, s); |
1230 |
|
1231 |
DMA_register_channel (s->hdma, SB_read_DMA, s); |
1232 |
DMA_register_channel (s->dma, SB_read_DMA, s); |
1233 |
s->can_write = 1;
|
1234 |
|
1235 |
qemu_mod_timer (s->ts, qemu_get_clock (vm_clock) + 1);
|
1236 |
register_savevm ("sb16", 0, 1, SB_save, SB_load, s); |
1237 |
} |