root / hw / sb16.c @ c0fe3827
History | View | Annotate | Download (34.8 kB)
1 |
/*
|
---|---|
2 |
* QEMU Soundblaster 16 emulation
|
3 |
*
|
4 |
* Copyright (c) 2003-2005 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 LENOFA(a) ((int) (sizeof(a)/sizeof(a[0]))) |
27 |
|
28 |
#define dolog(...) AUD_log ("sb16", __VA_ARGS__) |
29 |
|
30 |
/* #define DEBUG */
|
31 |
/* #define DEBUG_SB16_MOST */
|
32 |
|
33 |
#ifdef DEBUG
|
34 |
#define ldebug(...) dolog (__VA_ARGS__)
|
35 |
#else
|
36 |
#define ldebug(...)
|
37 |
#endif
|
38 |
|
39 |
#define IO_READ_PROTO(name) \
|
40 |
uint32_t name (void *opaque, uint32_t nport)
|
41 |
#define IO_WRITE_PROTO(name) \
|
42 |
void name (void *opaque, uint32_t nport, uint32_t val) |
43 |
|
44 |
static const char e3[] = "COPYRIGHT (C) CREATIVE TECHNOLOGY LTD, 1992."; |
45 |
|
46 |
static struct { |
47 |
int ver_lo;
|
48 |
int ver_hi;
|
49 |
int irq;
|
50 |
int dma;
|
51 |
int hdma;
|
52 |
int port;
|
53 |
} conf = {5, 4, 5, 1, 5, 0x220}; |
54 |
|
55 |
typedef struct SB16State { |
56 |
QEMUSoundCard card; |
57 |
int irq;
|
58 |
int dma;
|
59 |
int hdma;
|
60 |
int port;
|
61 |
int ver;
|
62 |
|
63 |
int in_index;
|
64 |
int out_data_len;
|
65 |
int fmt_stereo;
|
66 |
int fmt_signed;
|
67 |
int fmt_bits;
|
68 |
audfmt_e fmt; |
69 |
int dma_auto;
|
70 |
int block_size;
|
71 |
int fifo;
|
72 |
int freq;
|
73 |
int time_const;
|
74 |
int speaker;
|
75 |
int needed_bytes;
|
76 |
int cmd;
|
77 |
int use_hdma;
|
78 |
int highspeed;
|
79 |
int can_write;
|
80 |
|
81 |
int v2x6;
|
82 |
|
83 |
uint8_t csp_param; |
84 |
uint8_t csp_value; |
85 |
uint8_t csp_mode; |
86 |
uint8_t csp_regs[256];
|
87 |
uint8_t csp_index; |
88 |
uint8_t csp_reg83[4];
|
89 |
int csp_reg83r;
|
90 |
int csp_reg83w;
|
91 |
|
92 |
uint8_t in2_data[10];
|
93 |
uint8_t out_data[50];
|
94 |
uint8_t test_reg; |
95 |
uint8_t last_read_byte; |
96 |
int nzero;
|
97 |
|
98 |
int left_till_irq;
|
99 |
|
100 |
int dma_running;
|
101 |
int bytes_per_second;
|
102 |
int align;
|
103 |
int audio_free;
|
104 |
SWVoiceOut *voice; |
105 |
|
106 |
QEMUTimer *aux_ts; |
107 |
/* mixer state */
|
108 |
int mixer_nreg;
|
109 |
uint8_t mixer_regs[256];
|
110 |
} SB16State; |
111 |
|
112 |
static void SB_audio_callback (void *opaque, int free); |
113 |
|
114 |
static int magic_of_irq (int irq) |
115 |
{ |
116 |
switch (irq) {
|
117 |
case 5: |
118 |
return 2; |
119 |
case 7: |
120 |
return 4; |
121 |
case 9: |
122 |
return 1; |
123 |
case 10: |
124 |
return 8; |
125 |
default:
|
126 |
dolog ("bad irq %d\n", irq);
|
127 |
return 2; |
128 |
} |
129 |
} |
130 |
|
131 |
static int irq_of_magic (int magic) |
132 |
{ |
133 |
switch (magic) {
|
134 |
case 1: |
135 |
return 9; |
136 |
case 2: |
137 |
return 5; |
138 |
case 4: |
139 |
return 7; |
140 |
case 8: |
141 |
return 10; |
142 |
default:
|
143 |
dolog ("bad irq magic %d\n", magic);
|
144 |
return -1; |
145 |
} |
146 |
} |
147 |
|
148 |
#if 0
|
149 |
static void log_dsp (SB16State *dsp)
|
150 |
{
|
151 |
ldebug ("%s:%s:%d:%s:dmasize=%d:freq=%d:const=%d:speaker=%d\n",
|
152 |
dsp->fmt_stereo ? "Stereo" : "Mono",
|
153 |
dsp->fmt_signed ? "Signed" : "Unsigned",
|
154 |
dsp->fmt_bits,
|
155 |
dsp->dma_auto ? "Auto" : "Single",
|
156 |
dsp->block_size,
|
157 |
dsp->freq,
|
158 |
dsp->time_const,
|
159 |
dsp->speaker);
|
160 |
}
|
161 |
#endif
|
162 |
|
163 |
static void speaker (SB16State *s, int on) |
164 |
{ |
165 |
s->speaker = on; |
166 |
/* AUD_enable (s->voice, on); */
|
167 |
} |
168 |
|
169 |
static void control (SB16State *s, int hold) |
170 |
{ |
171 |
int dma = s->use_hdma ? s->hdma : s->dma;
|
172 |
s->dma_running = hold; |
173 |
|
174 |
ldebug ("hold %d high %d dma %d\n", hold, s->use_hdma, dma);
|
175 |
|
176 |
if (hold) {
|
177 |
DMA_hold_DREQ (dma); |
178 |
AUD_set_active_out (s->voice, 1);
|
179 |
} |
180 |
else {
|
181 |
DMA_release_DREQ (dma); |
182 |
AUD_set_active_out (s->voice, 0);
|
183 |
} |
184 |
} |
185 |
|
186 |
static void aux_timer (void *opaque) |
187 |
{ |
188 |
SB16State *s = opaque; |
189 |
s->can_write = 1;
|
190 |
pic_set_irq (s->irq, 1);
|
191 |
} |
192 |
|
193 |
#define DMA8_AUTO 1 |
194 |
#define DMA8_HIGH 2 |
195 |
|
196 |
static void dma_cmd8 (SB16State *s, int mask, int dma_len) |
197 |
{ |
198 |
s->fmt = AUD_FMT_U8; |
199 |
s->use_hdma = 0;
|
200 |
s->fmt_bits = 8;
|
201 |
s->fmt_signed = 0;
|
202 |
s->fmt_stereo = (s->mixer_regs[0x0e] & 2) != 0; |
203 |
if (-1 == s->time_const) { |
204 |
s->freq = 11025;
|
205 |
} |
206 |
else {
|
207 |
int tmp = (256 - s->time_const); |
208 |
s->freq = (1000000 + (tmp / 2)) / tmp; |
209 |
} |
210 |
|
211 |
if (dma_len != -1) { |
212 |
s->block_size = dma_len << s->fmt_stereo; |
213 |
} |
214 |
else {
|
215 |
/* This is apparently the only way to make both Act1/PL
|
216 |
and SecondReality/FC work
|
217 |
|
218 |
Act1 sets block size via command 0x48 and it's an odd number
|
219 |
SR does the same with even number
|
220 |
Both use stereo, and Creatives own documentation states that
|
221 |
0x48 sets block size in bytes less one.. go figure */
|
222 |
s->block_size &= ~s->fmt_stereo; |
223 |
} |
224 |
|
225 |
s->freq >>= s->fmt_stereo; |
226 |
s->left_till_irq = s->block_size; |
227 |
s->bytes_per_second = (s->freq << s->fmt_stereo); |
228 |
/* s->highspeed = (mask & DMA8_HIGH) != 0; */
|
229 |
s->dma_auto = (mask & DMA8_AUTO) != 0;
|
230 |
s->align = (1 << s->fmt_stereo) - 1; |
231 |
|
232 |
if (s->block_size & s->align) {
|
233 |
dolog ("warning: misaligned block size %d, alignment %d\n",
|
234 |
s->block_size, s->align + 1);
|
235 |
} |
236 |
|
237 |
ldebug ("freq %d, stereo %d, sign %d, bits %d, "
|
238 |
"dma %d, auto %d, fifo %d, high %d\n",
|
239 |
s->freq, s->fmt_stereo, s->fmt_signed, s->fmt_bits, |
240 |
s->block_size, s->dma_auto, s->fifo, s->highspeed); |
241 |
|
242 |
if (s->freq) {
|
243 |
audsettings_t as; |
244 |
|
245 |
s->audio_free = 0;
|
246 |
|
247 |
as.freq = s->freq; |
248 |
as.nchannels = 1 << s->fmt_stereo;
|
249 |
as.fmt = s->fmt; |
250 |
|
251 |
s->voice = AUD_open_out ( |
252 |
&s->card, |
253 |
s->voice, |
254 |
"sb16",
|
255 |
s, |
256 |
SB_audio_callback, |
257 |
&as |
258 |
); |
259 |
} |
260 |
|
261 |
control (s, 1);
|
262 |
speaker (s, 1);
|
263 |
} |
264 |
|
265 |
static void dma_cmd (SB16State *s, uint8_t cmd, uint8_t d0, int dma_len) |
266 |
{ |
267 |
s->use_hdma = cmd < 0xc0;
|
268 |
s->fifo = (cmd >> 1) & 1; |
269 |
s->dma_auto = (cmd >> 2) & 1; |
270 |
s->fmt_signed = (d0 >> 4) & 1; |
271 |
s->fmt_stereo = (d0 >> 5) & 1; |
272 |
|
273 |
switch (cmd >> 4) { |
274 |
case 11: |
275 |
s->fmt_bits = 16;
|
276 |
break;
|
277 |
|
278 |
case 12: |
279 |
s->fmt_bits = 8;
|
280 |
break;
|
281 |
} |
282 |
|
283 |
if (-1 != s->time_const) { |
284 |
#if 1 |
285 |
int tmp = 256 - s->time_const; |
286 |
s->freq = (1000000 + (tmp / 2)) / tmp; |
287 |
#else
|
288 |
/* s->freq = 1000000 / ((255 - s->time_const) << s->fmt_stereo); */
|
289 |
s->freq = 1000000 / ((255 - s->time_const)); |
290 |
#endif
|
291 |
s->time_const = -1;
|
292 |
} |
293 |
|
294 |
s->block_size = dma_len + 1;
|
295 |
s->block_size <<= (s->fmt_bits == 16);
|
296 |
if (!s->dma_auto) {
|
297 |
/* It is clear that for DOOM and auto-init this value
|
298 |
shouldn't take stereo into account, while Miles Sound Systems
|
299 |
setsound.exe with single transfer mode wouldn't work without it
|
300 |
wonders of SB16 yet again */
|
301 |
s->block_size <<= s->fmt_stereo; |
302 |
} |
303 |
|
304 |
ldebug ("freq %d, stereo %d, sign %d, bits %d, "
|
305 |
"dma %d, auto %d, fifo %d, high %d\n",
|
306 |
s->freq, s->fmt_stereo, s->fmt_signed, s->fmt_bits, |
307 |
s->block_size, s->dma_auto, s->fifo, s->highspeed); |
308 |
|
309 |
if (16 == s->fmt_bits) { |
310 |
if (s->fmt_signed) {
|
311 |
s->fmt = AUD_FMT_S16; |
312 |
} |
313 |
else {
|
314 |
s->fmt = AUD_FMT_U16; |
315 |
} |
316 |
} |
317 |
else {
|
318 |
if (s->fmt_signed) {
|
319 |
s->fmt = AUD_FMT_S8; |
320 |
} |
321 |
else {
|
322 |
s->fmt = AUD_FMT_U8; |
323 |
} |
324 |
} |
325 |
|
326 |
s->left_till_irq = s->block_size; |
327 |
|
328 |
s->bytes_per_second = (s->freq << s->fmt_stereo) << (s->fmt_bits == 16);
|
329 |
s->highspeed = 0;
|
330 |
s->align = (1 << (s->fmt_stereo + (s->fmt_bits == 16))) - 1; |
331 |
if (s->block_size & s->align) {
|
332 |
dolog ("warning: misaligned block size %d, alignment %d\n",
|
333 |
s->block_size, s->align + 1);
|
334 |
} |
335 |
|
336 |
if (s->freq) {
|
337 |
audsettings_t as; |
338 |
|
339 |
s->audio_free = 0;
|
340 |
|
341 |
as.freq = s->freq; |
342 |
as.nchannels = 1 << s->fmt_stereo;
|
343 |
as.fmt = s->fmt; |
344 |
|
345 |
s->voice = AUD_open_out ( |
346 |
&s->card, |
347 |
s->voice, |
348 |
"sb16",
|
349 |
s, |
350 |
SB_audio_callback, |
351 |
&as |
352 |
); |
353 |
} |
354 |
|
355 |
control (s, 1);
|
356 |
speaker (s, 1);
|
357 |
} |
358 |
|
359 |
static inline void dsp_out_data (SB16State *s, uint8_t val) |
360 |
{ |
361 |
ldebug ("outdata %#x\n", val);
|
362 |
if ((size_t) s->out_data_len < sizeof (s->out_data)) { |
363 |
s->out_data[s->out_data_len++] = val; |
364 |
} |
365 |
} |
366 |
|
367 |
static inline uint8_t dsp_get_data (SB16State *s) |
368 |
{ |
369 |
if (s->in_index) {
|
370 |
return s->in2_data[--s->in_index];
|
371 |
} |
372 |
else {
|
373 |
dolog ("buffer underflow\n");
|
374 |
return 0; |
375 |
} |
376 |
} |
377 |
|
378 |
static void command (SB16State *s, uint8_t cmd) |
379 |
{ |
380 |
ldebug ("command %#x\n", cmd);
|
381 |
|
382 |
if (cmd > 0xaf && cmd < 0xd0) { |
383 |
if (cmd & 8) { |
384 |
dolog ("ADC not yet supported (command %#x)\n", cmd);
|
385 |
} |
386 |
|
387 |
switch (cmd >> 4) { |
388 |
case 11: |
389 |
case 12: |
390 |
break;
|
391 |
default:
|
392 |
dolog ("%#x wrong bits\n", cmd);
|
393 |
} |
394 |
s->needed_bytes = 3;
|
395 |
} |
396 |
else {
|
397 |
s->needed_bytes = 0;
|
398 |
|
399 |
switch (cmd) {
|
400 |
case 0x03: |
401 |
dsp_out_data (s, 0x10); /* s->csp_param); */ |
402 |
goto warn;
|
403 |
|
404 |
case 0x04: |
405 |
s->needed_bytes = 1;
|
406 |
goto warn;
|
407 |
|
408 |
case 0x05: |
409 |
s->needed_bytes = 2;
|
410 |
goto warn;
|
411 |
|
412 |
case 0x08: |
413 |
/* __asm__ ("int3"); */
|
414 |
goto warn;
|
415 |
|
416 |
case 0x0e: |
417 |
s->needed_bytes = 2;
|
418 |
goto warn;
|
419 |
|
420 |
case 0x09: |
421 |
dsp_out_data (s, 0xf8);
|
422 |
goto warn;
|
423 |
|
424 |
case 0x0f: |
425 |
s->needed_bytes = 1;
|
426 |
goto warn;
|
427 |
|
428 |
case 0x10: |
429 |
s->needed_bytes = 1;
|
430 |
goto warn;
|
431 |
|
432 |
case 0x14: |
433 |
s->needed_bytes = 2;
|
434 |
s->block_size = 0;
|
435 |
break;
|
436 |
|
437 |
case 0x1c: /* Auto-Initialize DMA DAC, 8-bit */ |
438 |
control (s, 1);
|
439 |
break;
|
440 |
|
441 |
case 0x20: /* Direct ADC, Juice/PL */ |
442 |
dsp_out_data (s, 0xff);
|
443 |
goto warn;
|
444 |
|
445 |
case 0x35: |
446 |
dolog ("0x35 - MIDI command not implemented\n");
|
447 |
break;
|
448 |
|
449 |
case 0x40: |
450 |
s->freq = -1;
|
451 |
s->time_const = -1;
|
452 |
s->needed_bytes = 1;
|
453 |
break;
|
454 |
|
455 |
case 0x41: |
456 |
s->freq = -1;
|
457 |
s->time_const = -1;
|
458 |
s->needed_bytes = 2;
|
459 |
break;
|
460 |
|
461 |
case 0x42: |
462 |
s->freq = -1;
|
463 |
s->time_const = -1;
|
464 |
s->needed_bytes = 2;
|
465 |
goto warn;
|
466 |
|
467 |
case 0x45: |
468 |
dsp_out_data (s, 0xaa);
|
469 |
goto warn;
|
470 |
|
471 |
case 0x47: /* Continue Auto-Initialize DMA 16bit */ |
472 |
break;
|
473 |
|
474 |
case 0x48: |
475 |
s->needed_bytes = 2;
|
476 |
break;
|
477 |
|
478 |
case 0x74: |
479 |
s->needed_bytes = 2; /* DMA DAC, 4-bit ADPCM */ |
480 |
dolog ("0x75 - DMA DAC, 4-bit ADPCM not implemented\n");
|
481 |
break;
|
482 |
|
483 |
case 0x75: /* DMA DAC, 4-bit ADPCM Reference */ |
484 |
s->needed_bytes = 2;
|
485 |
dolog ("0x74 - DMA DAC, 4-bit ADPCM Reference not implemented\n");
|
486 |
break;
|
487 |
|
488 |
case 0x76: /* DMA DAC, 2.6-bit ADPCM */ |
489 |
s->needed_bytes = 2;
|
490 |
dolog ("0x74 - DMA DAC, 2.6-bit ADPCM not implemented\n");
|
491 |
break;
|
492 |
|
493 |
case 0x77: /* DMA DAC, 2.6-bit ADPCM Reference */ |
494 |
s->needed_bytes = 2;
|
495 |
dolog ("0x74 - DMA DAC, 2.6-bit ADPCM Reference not implemented\n");
|
496 |
break;
|
497 |
|
498 |
case 0x7d: |
499 |
dolog ("0x7d - Autio-Initialize DMA DAC, 4-bit ADPCM Reference\n");
|
500 |
dolog ("not implemented\n");
|
501 |
break;
|
502 |
|
503 |
case 0x7f: |
504 |
dolog ( |
505 |
"0x7d - Autio-Initialize DMA DAC, 2.6-bit ADPCM Reference\n"
|
506 |
); |
507 |
dolog ("not implemented\n");
|
508 |
break;
|
509 |
|
510 |
case 0x80: |
511 |
s->needed_bytes = 2;
|
512 |
break;
|
513 |
|
514 |
case 0x90: |
515 |
case 0x91: |
516 |
dma_cmd8 (s, ((cmd & 1) == 0) | DMA8_HIGH, -1); |
517 |
break;
|
518 |
|
519 |
case 0xd0: /* halt DMA operation. 8bit */ |
520 |
control (s, 0);
|
521 |
break;
|
522 |
|
523 |
case 0xd1: /* speaker on */ |
524 |
speaker (s, 1);
|
525 |
break;
|
526 |
|
527 |
case 0xd3: /* speaker off */ |
528 |
speaker (s, 0);
|
529 |
break;
|
530 |
|
531 |
case 0xd4: /* continue DMA operation. 8bit */ |
532 |
control (s, 1);
|
533 |
break;
|
534 |
|
535 |
case 0xd5: /* halt DMA operation. 16bit */ |
536 |
control (s, 0);
|
537 |
break;
|
538 |
|
539 |
case 0xd6: /* continue DMA operation. 16bit */ |
540 |
control (s, 1);
|
541 |
break;
|
542 |
|
543 |
case 0xd9: /* exit auto-init DMA after this block. 16bit */ |
544 |
s->dma_auto = 0;
|
545 |
break;
|
546 |
|
547 |
case 0xda: /* exit auto-init DMA after this block. 8bit */ |
548 |
s->dma_auto = 0;
|
549 |
break;
|
550 |
|
551 |
case 0xe0: /* DSP identification */ |
552 |
s->needed_bytes = 1;
|
553 |
break;
|
554 |
|
555 |
case 0xe1: |
556 |
dsp_out_data (s, s->ver & 0xff);
|
557 |
dsp_out_data (s, s->ver >> 8);
|
558 |
break;
|
559 |
|
560 |
case 0xe2: |
561 |
s->needed_bytes = 1;
|
562 |
goto warn;
|
563 |
|
564 |
case 0xe3: |
565 |
{ |
566 |
int i;
|
567 |
for (i = sizeof (e3) - 1; i >= 0; --i) |
568 |
dsp_out_data (s, e3[i]); |
569 |
} |
570 |
break;
|
571 |
|
572 |
case 0xe4: /* write test reg */ |
573 |
s->needed_bytes = 1;
|
574 |
break;
|
575 |
|
576 |
case 0xe7: |
577 |
dolog ("Attempt to probe for ESS (0xe7)?\n");
|
578 |
break;
|
579 |
|
580 |
case 0xe8: /* read test reg */ |
581 |
dsp_out_data (s, s->test_reg); |
582 |
break;
|
583 |
|
584 |
case 0xf2: |
585 |
case 0xf3: |
586 |
dsp_out_data (s, 0xaa);
|
587 |
s->mixer_regs[0x82] |= (cmd == 0xf2) ? 1 : 2; |
588 |
pic_set_irq (s->irq, 1);
|
589 |
break;
|
590 |
|
591 |
case 0xf9: |
592 |
s->needed_bytes = 1;
|
593 |
goto warn;
|
594 |
|
595 |
case 0xfa: |
596 |
dsp_out_data (s, 0);
|
597 |
goto warn;
|
598 |
|
599 |
case 0xfc: /* FIXME */ |
600 |
dsp_out_data (s, 0);
|
601 |
goto warn;
|
602 |
|
603 |
default:
|
604 |
dolog ("Unrecognized command %#x\n", cmd);
|
605 |
break;
|
606 |
} |
607 |
} |
608 |
|
609 |
if (!s->needed_bytes) {
|
610 |
ldebug ("\n");
|
611 |
} |
612 |
|
613 |
exit:
|
614 |
if (!s->needed_bytes) {
|
615 |
s->cmd = -1;
|
616 |
} |
617 |
else {
|
618 |
s->cmd = cmd; |
619 |
} |
620 |
return;
|
621 |
|
622 |
warn:
|
623 |
dolog ("warning: command %#x,%d is not truly understood yet\n",
|
624 |
cmd, s->needed_bytes); |
625 |
goto exit;
|
626 |
|
627 |
} |
628 |
|
629 |
static uint16_t dsp_get_lohi (SB16State *s)
|
630 |
{ |
631 |
uint8_t hi = dsp_get_data (s); |
632 |
uint8_t lo = dsp_get_data (s); |
633 |
return (hi << 8) | lo; |
634 |
} |
635 |
|
636 |
static uint16_t dsp_get_hilo (SB16State *s)
|
637 |
{ |
638 |
uint8_t lo = dsp_get_data (s); |
639 |
uint8_t hi = dsp_get_data (s); |
640 |
return (hi << 8) | lo; |
641 |
} |
642 |
|
643 |
static void complete (SB16State *s) |
644 |
{ |
645 |
int d0, d1, d2;
|
646 |
ldebug ("complete command %#x, in_index %d, needed_bytes %d\n",
|
647 |
s->cmd, s->in_index, s->needed_bytes); |
648 |
|
649 |
if (s->cmd > 0xaf && s->cmd < 0xd0) { |
650 |
d2 = dsp_get_data (s); |
651 |
d1 = dsp_get_data (s); |
652 |
d0 = dsp_get_data (s); |
653 |
|
654 |
if (s->cmd & 8) { |
655 |
dolog ("ADC params cmd = %#x d0 = %d, d1 = %d, d2 = %d\n",
|
656 |
s->cmd, d0, d1, d2); |
657 |
} |
658 |
else {
|
659 |
ldebug ("cmd = %#x d0 = %d, d1 = %d, d2 = %d\n",
|
660 |
s->cmd, d0, d1, d2); |
661 |
dma_cmd (s, s->cmd, d0, d1 + (d2 << 8));
|
662 |
} |
663 |
} |
664 |
else {
|
665 |
switch (s->cmd) {
|
666 |
case 0x04: |
667 |
s->csp_mode = dsp_get_data (s); |
668 |
s->csp_reg83r = 0;
|
669 |
s->csp_reg83w = 0;
|
670 |
ldebug ("CSP command 0x04: mode=%#x\n", s->csp_mode);
|
671 |
break;
|
672 |
|
673 |
case 0x05: |
674 |
s->csp_param = dsp_get_data (s); |
675 |
s->csp_value = dsp_get_data (s); |
676 |
ldebug ("CSP command 0x05: param=%#x value=%#x\n",
|
677 |
s->csp_param, |
678 |
s->csp_value); |
679 |
break;
|
680 |
|
681 |
case 0x0e: |
682 |
d0 = dsp_get_data (s); |
683 |
d1 = dsp_get_data (s); |
684 |
ldebug ("write CSP register %d <- %#x\n", d1, d0);
|
685 |
if (d1 == 0x83) { |
686 |
ldebug ("0x83[%d] <- %#x\n", s->csp_reg83r, d0);
|
687 |
s->csp_reg83[s->csp_reg83r % 4] = d0;
|
688 |
s->csp_reg83r += 1;
|
689 |
} |
690 |
else {
|
691 |
s->csp_regs[d1] = d0; |
692 |
} |
693 |
break;
|
694 |
|
695 |
case 0x0f: |
696 |
d0 = dsp_get_data (s); |
697 |
ldebug ("read CSP register %#x -> %#x, mode=%#x\n",
|
698 |
d0, s->csp_regs[d0], s->csp_mode); |
699 |
if (d0 == 0x83) { |
700 |
ldebug ("0x83[%d] -> %#x\n",
|
701 |
s->csp_reg83w, |
702 |
s->csp_reg83[s->csp_reg83w % 4]);
|
703 |
dsp_out_data (s, s->csp_reg83[s->csp_reg83w % 4]);
|
704 |
s->csp_reg83w += 1;
|
705 |
} |
706 |
else {
|
707 |
dsp_out_data (s, s->csp_regs[d0]); |
708 |
} |
709 |
break;
|
710 |
|
711 |
case 0x10: |
712 |
d0 = dsp_get_data (s); |
713 |
dolog ("cmd 0x10 d0=%#x\n", d0);
|
714 |
break;
|
715 |
|
716 |
case 0x14: |
717 |
dma_cmd8 (s, 0, dsp_get_lohi (s) + 1); |
718 |
break;
|
719 |
|
720 |
case 0x40: |
721 |
s->time_const = dsp_get_data (s); |
722 |
ldebug ("set time const %d\n", s->time_const);
|
723 |
break;
|
724 |
|
725 |
case 0x42: /* FT2 sets output freq with this, go figure */ |
726 |
#if 0
|
727 |
dolog ("cmd 0x42 might not do what it think it should\n");
|
728 |
#endif
|
729 |
case 0x41: |
730 |
s->freq = dsp_get_hilo (s); |
731 |
ldebug ("set freq %d\n", s->freq);
|
732 |
break;
|
733 |
|
734 |
case 0x48: |
735 |
s->block_size = dsp_get_lohi (s) + 1;
|
736 |
ldebug ("set dma block len %d\n", s->block_size);
|
737 |
break;
|
738 |
|
739 |
case 0x74: |
740 |
case 0x75: |
741 |
case 0x76: |
742 |
case 0x77: |
743 |
/* ADPCM stuff, ignore */
|
744 |
break;
|
745 |
|
746 |
case 0x80: |
747 |
{ |
748 |
int freq, samples, bytes;
|
749 |
int64_t ticks; |
750 |
|
751 |
freq = s->freq > 0 ? s->freq : 11025; |
752 |
samples = dsp_get_lohi (s) + 1;
|
753 |
bytes = samples << s->fmt_stereo << (s->fmt_bits == 16);
|
754 |
ticks = (bytes * ticks_per_sec) / freq; |
755 |
if (ticks < ticks_per_sec / 1024) { |
756 |
pic_set_irq (s->irq, 1);
|
757 |
} |
758 |
else {
|
759 |
if (s->aux_ts) {
|
760 |
qemu_mod_timer ( |
761 |
s->aux_ts, |
762 |
qemu_get_clock (vm_clock) + ticks |
763 |
); |
764 |
} |
765 |
} |
766 |
ldebug ("mix silence %d %d %lld\n", samples, bytes, ticks);
|
767 |
} |
768 |
break;
|
769 |
|
770 |
case 0xe0: |
771 |
d0 = dsp_get_data (s); |
772 |
s->out_data_len = 0;
|
773 |
ldebug ("E0 data = %#x\n", d0);
|
774 |
dsp_out_data (s, ~d0); |
775 |
break;
|
776 |
|
777 |
case 0xe2: |
778 |
d0 = dsp_get_data (s); |
779 |
ldebug ("E2 = %#x\n", d0);
|
780 |
break;
|
781 |
|
782 |
case 0xe4: |
783 |
s->test_reg = dsp_get_data (s); |
784 |
break;
|
785 |
|
786 |
case 0xf9: |
787 |
d0 = dsp_get_data (s); |
788 |
ldebug ("command 0xf9 with %#x\n", d0);
|
789 |
switch (d0) {
|
790 |
case 0x0e: |
791 |
dsp_out_data (s, 0xff);
|
792 |
break;
|
793 |
|
794 |
case 0x0f: |
795 |
dsp_out_data (s, 0x07);
|
796 |
break;
|
797 |
|
798 |
case 0x37: |
799 |
dsp_out_data (s, 0x38);
|
800 |
break;
|
801 |
|
802 |
default:
|
803 |
dsp_out_data (s, 0x00);
|
804 |
break;
|
805 |
} |
806 |
break;
|
807 |
|
808 |
default:
|
809 |
dolog ("complete: unrecognized command %#x\n", s->cmd);
|
810 |
return;
|
811 |
} |
812 |
} |
813 |
|
814 |
ldebug ("\n");
|
815 |
s->cmd = -1;
|
816 |
return;
|
817 |
} |
818 |
|
819 |
static void reset (SB16State *s) |
820 |
{ |
821 |
pic_set_irq (s->irq, 0);
|
822 |
if (s->dma_auto) {
|
823 |
pic_set_irq (s->irq, 1);
|
824 |
pic_set_irq (s->irq, 0);
|
825 |
} |
826 |
|
827 |
s->mixer_regs[0x82] = 0; |
828 |
s->dma_auto = 0;
|
829 |
s->in_index = 0;
|
830 |
s->out_data_len = 0;
|
831 |
s->left_till_irq = 0;
|
832 |
s->needed_bytes = 0;
|
833 |
s->block_size = -1;
|
834 |
s->nzero = 0;
|
835 |
s->highspeed = 0;
|
836 |
s->v2x6 = 0;
|
837 |
s->cmd = -1;
|
838 |
|
839 |
dsp_out_data(s, 0xaa);
|
840 |
speaker (s, 0);
|
841 |
control (s, 0);
|
842 |
} |
843 |
|
844 |
static IO_WRITE_PROTO (dsp_write)
|
845 |
{ |
846 |
SB16State *s = opaque; |
847 |
int iport;
|
848 |
|
849 |
iport = nport - s->port; |
850 |
|
851 |
ldebug ("write %#x <- %#x\n", nport, val);
|
852 |
switch (iport) {
|
853 |
case 0x06: |
854 |
switch (val) {
|
855 |
case 0x00: |
856 |
if (s->v2x6 == 1) { |
857 |
if (0 && s->highspeed) { |
858 |
s->highspeed = 0;
|
859 |
pic_set_irq (s->irq, 0);
|
860 |
control (s, 0);
|
861 |
} |
862 |
else {
|
863 |
reset (s); |
864 |
} |
865 |
} |
866 |
s->v2x6 = 0;
|
867 |
break;
|
868 |
|
869 |
case 0x01: |
870 |
case 0x03: /* FreeBSD kludge */ |
871 |
s->v2x6 = 1;
|
872 |
break;
|
873 |
|
874 |
case 0xc6: |
875 |
s->v2x6 = 0; /* Prince of Persia, csp.sys, diagnose.exe */ |
876 |
break;
|
877 |
|
878 |
case 0xb8: /* Panic */ |
879 |
reset (s); |
880 |
break;
|
881 |
|
882 |
case 0x39: |
883 |
dsp_out_data (s, 0x38);
|
884 |
reset (s); |
885 |
s->v2x6 = 0x39;
|
886 |
break;
|
887 |
|
888 |
default:
|
889 |
s->v2x6 = val; |
890 |
break;
|
891 |
} |
892 |
break;
|
893 |
|
894 |
case 0x0c: /* write data or command | write status */ |
895 |
/* if (s->highspeed) */
|
896 |
/* break; */
|
897 |
|
898 |
if (0 == s->needed_bytes) { |
899 |
command (s, val); |
900 |
#if 0
|
901 |
if (0 == s->needed_bytes) {
|
902 |
log_dsp (s);
|
903 |
}
|
904 |
#endif
|
905 |
} |
906 |
else {
|
907 |
if (s->in_index == sizeof (s->in2_data)) { |
908 |
dolog ("in data overrun\n");
|
909 |
} |
910 |
else {
|
911 |
s->in2_data[s->in_index++] = val; |
912 |
if (s->in_index == s->needed_bytes) {
|
913 |
s->needed_bytes = 0;
|
914 |
complete (s); |
915 |
#if 0
|
916 |
log_dsp (s);
|
917 |
#endif
|
918 |
} |
919 |
} |
920 |
} |
921 |
break;
|
922 |
|
923 |
default:
|
924 |
ldebug ("(nport=%#x, val=%#x)\n", nport, val);
|
925 |
break;
|
926 |
} |
927 |
} |
928 |
|
929 |
static IO_READ_PROTO (dsp_read)
|
930 |
{ |
931 |
SB16State *s = opaque; |
932 |
int iport, retval, ack = 0; |
933 |
|
934 |
iport = nport - s->port; |
935 |
|
936 |
switch (iport) {
|
937 |
case 0x06: /* reset */ |
938 |
retval = 0xff;
|
939 |
break;
|
940 |
|
941 |
case 0x0a: /* read data */ |
942 |
if (s->out_data_len) {
|
943 |
retval = s->out_data[--s->out_data_len]; |
944 |
s->last_read_byte = retval; |
945 |
} |
946 |
else {
|
947 |
if (s->cmd != -1) { |
948 |
dolog ("empty output buffer for command %#x\n",
|
949 |
s->cmd); |
950 |
} |
951 |
retval = s->last_read_byte; |
952 |
/* goto error; */
|
953 |
} |
954 |
break;
|
955 |
|
956 |
case 0x0c: /* 0 can write */ |
957 |
retval = s->can_write ? 0 : 0x80; |
958 |
break;
|
959 |
|
960 |
case 0x0d: /* timer interrupt clear */ |
961 |
/* dolog ("timer interrupt clear\n"); */
|
962 |
retval = 0;
|
963 |
break;
|
964 |
|
965 |
case 0x0e: /* data available status | irq 8 ack */ |
966 |
retval = (!s->out_data_len || s->highspeed) ? 0 : 0x80; |
967 |
if (s->mixer_regs[0x82] & 1) { |
968 |
ack = 1;
|
969 |
s->mixer_regs[0x82] &= 1; |
970 |
pic_set_irq (s->irq, 0);
|
971 |
} |
972 |
break;
|
973 |
|
974 |
case 0x0f: /* irq 16 ack */ |
975 |
retval = 0xff;
|
976 |
if (s->mixer_regs[0x82] & 2) { |
977 |
ack = 1;
|
978 |
s->mixer_regs[0x82] &= 2; |
979 |
pic_set_irq (s->irq, 0);
|
980 |
} |
981 |
break;
|
982 |
|
983 |
default:
|
984 |
goto error;
|
985 |
} |
986 |
|
987 |
if (!ack) {
|
988 |
ldebug ("read %#x -> %#x\n", nport, retval);
|
989 |
} |
990 |
|
991 |
return retval;
|
992 |
|
993 |
error:
|
994 |
dolog ("warning: dsp_read %#x error\n", nport);
|
995 |
return 0xff; |
996 |
} |
997 |
|
998 |
static void reset_mixer (SB16State *s) |
999 |
{ |
1000 |
int i;
|
1001 |
|
1002 |
memset (s->mixer_regs, 0xff, 0x7f); |
1003 |
memset (s->mixer_regs + 0x83, 0xff, sizeof (s->mixer_regs) - 0x83); |
1004 |
|
1005 |
s->mixer_regs[0x02] = 4; /* master volume 3bits */ |
1006 |
s->mixer_regs[0x06] = 4; /* MIDI volume 3bits */ |
1007 |
s->mixer_regs[0x08] = 0; /* CD volume 3bits */ |
1008 |
s->mixer_regs[0x0a] = 0; /* voice volume 2bits */ |
1009 |
|
1010 |
/* d5=input filt, d3=lowpass filt, d1,d2=input source */
|
1011 |
s->mixer_regs[0x0c] = 0; |
1012 |
|
1013 |
/* d5=output filt, d1=stereo switch */
|
1014 |
s->mixer_regs[0x0e] = 0; |
1015 |
|
1016 |
/* voice volume L d5,d7, R d1,d3 */
|
1017 |
s->mixer_regs[0x04] = (4 << 5) | (4 << 1); |
1018 |
/* master ... */
|
1019 |
s->mixer_regs[0x22] = (4 << 5) | (4 << 1); |
1020 |
/* MIDI ... */
|
1021 |
s->mixer_regs[0x26] = (4 << 5) | (4 << 1); |
1022 |
|
1023 |
for (i = 0x30; i < 0x48; i++) { |
1024 |
s->mixer_regs[i] = 0x20;
|
1025 |
} |
1026 |
} |
1027 |
|
1028 |
static IO_WRITE_PROTO(mixer_write_indexb)
|
1029 |
{ |
1030 |
SB16State *s = opaque; |
1031 |
(void) nport;
|
1032 |
s->mixer_nreg = val; |
1033 |
} |
1034 |
|
1035 |
static IO_WRITE_PROTO(mixer_write_datab)
|
1036 |
{ |
1037 |
SB16State *s = opaque; |
1038 |
|
1039 |
(void) nport;
|
1040 |
ldebug ("mixer_write [%#x] <- %#x\n", s->mixer_nreg, val);
|
1041 |
|
1042 |
switch (s->mixer_nreg) {
|
1043 |
case 0x00: |
1044 |
reset_mixer (s); |
1045 |
break;
|
1046 |
|
1047 |
case 0x80: |
1048 |
{ |
1049 |
int irq = irq_of_magic (val);
|
1050 |
ldebug ("setting irq to %d (val=%#x)\n", irq, val);
|
1051 |
if (irq > 0) { |
1052 |
s->irq = irq; |
1053 |
} |
1054 |
} |
1055 |
break;
|
1056 |
|
1057 |
case 0x81: |
1058 |
{ |
1059 |
int dma, hdma;
|
1060 |
|
1061 |
dma = lsbindex (val & 0xf);
|
1062 |
hdma = lsbindex (val & 0xf0);
|
1063 |
if (dma != s->dma || hdma != s->hdma) {
|
1064 |
dolog ( |
1065 |
"attempt to change DMA "
|
1066 |
"8bit %d(%d), 16bit %d(%d) (val=%#x)\n",
|
1067 |
dma, s->dma, hdma, s->hdma, val); |
1068 |
} |
1069 |
#if 0
|
1070 |
s->dma = dma;
|
1071 |
s->hdma = hdma;
|
1072 |
#endif
|
1073 |
} |
1074 |
break;
|
1075 |
|
1076 |
case 0x82: |
1077 |
dolog ("attempt to write into IRQ status register (val=%#x)\n",
|
1078 |
val); |
1079 |
return;
|
1080 |
|
1081 |
default:
|
1082 |
if (s->mixer_nreg >= 0x80) { |
1083 |
ldebug ("attempt to write mixer[%#x] <- %#x\n", s->mixer_nreg, val);
|
1084 |
} |
1085 |
break;
|
1086 |
} |
1087 |
|
1088 |
s->mixer_regs[s->mixer_nreg] = val; |
1089 |
} |
1090 |
|
1091 |
static IO_WRITE_PROTO(mixer_write_indexw)
|
1092 |
{ |
1093 |
mixer_write_indexb (opaque, nport, val & 0xff);
|
1094 |
mixer_write_datab (opaque, nport, (val >> 8) & 0xff); |
1095 |
} |
1096 |
|
1097 |
static IO_READ_PROTO(mixer_read)
|
1098 |
{ |
1099 |
SB16State *s = opaque; |
1100 |
|
1101 |
(void) nport;
|
1102 |
#ifndef DEBUG_SB16_MOST
|
1103 |
if (s->mixer_nreg != 0x82) { |
1104 |
ldebug ("mixer_read[%#x] -> %#x\n",
|
1105 |
s->mixer_nreg, s->mixer_regs[s->mixer_nreg]); |
1106 |
} |
1107 |
#else
|
1108 |
ldebug ("mixer_read[%#x] -> %#x\n",
|
1109 |
s->mixer_nreg, s->mixer_regs[s->mixer_nreg]); |
1110 |
#endif
|
1111 |
return s->mixer_regs[s->mixer_nreg];
|
1112 |
} |
1113 |
|
1114 |
static int write_audio (SB16State *s, int nchan, int dma_pos, |
1115 |
int dma_len, int len) |
1116 |
{ |
1117 |
int temp, net;
|
1118 |
uint8_t tmpbuf[4096];
|
1119 |
|
1120 |
temp = len; |
1121 |
net = 0;
|
1122 |
|
1123 |
while (temp) {
|
1124 |
int left = dma_len - dma_pos;
|
1125 |
int copied;
|
1126 |
size_t to_copy; |
1127 |
|
1128 |
to_copy = audio_MIN (temp, left); |
1129 |
if (to_copy > sizeof (tmpbuf)) { |
1130 |
to_copy = sizeof (tmpbuf);
|
1131 |
} |
1132 |
|
1133 |
copied = DMA_read_memory (nchan, tmpbuf, dma_pos, to_copy); |
1134 |
copied = AUD_write (s->voice, tmpbuf, copied); |
1135 |
|
1136 |
temp -= copied; |
1137 |
dma_pos = (dma_pos + copied) % dma_len; |
1138 |
net += copied; |
1139 |
|
1140 |
if (!copied) {
|
1141 |
break;
|
1142 |
} |
1143 |
} |
1144 |
|
1145 |
return net;
|
1146 |
} |
1147 |
|
1148 |
static int SB_read_DMA (void *opaque, int nchan, int dma_pos, int dma_len) |
1149 |
{ |
1150 |
SB16State *s = opaque; |
1151 |
int till, copy, written, free;
|
1152 |
|
1153 |
if (s->left_till_irq < 0) { |
1154 |
s->left_till_irq = s->block_size; |
1155 |
} |
1156 |
|
1157 |
if (s->voice) {
|
1158 |
free = s->audio_free & ~s->align; |
1159 |
if ((free <= 0) || !dma_len) { |
1160 |
return dma_pos;
|
1161 |
} |
1162 |
} |
1163 |
else {
|
1164 |
free = dma_len; |
1165 |
} |
1166 |
|
1167 |
copy = free; |
1168 |
till = s->left_till_irq; |
1169 |
|
1170 |
#ifdef DEBUG_SB16_MOST
|
1171 |
dolog ("pos:%06d %d till:%d len:%d\n",
|
1172 |
dma_pos, free, till, dma_len); |
1173 |
#endif
|
1174 |
|
1175 |
if (till <= copy) {
|
1176 |
if (0 == s->dma_auto) { |
1177 |
copy = till; |
1178 |
} |
1179 |
} |
1180 |
|
1181 |
written = write_audio (s, nchan, dma_pos, dma_len, copy); |
1182 |
dma_pos = (dma_pos + written) % dma_len; |
1183 |
s->left_till_irq -= written; |
1184 |
|
1185 |
if (s->left_till_irq <= 0) { |
1186 |
s->mixer_regs[0x82] |= (nchan & 4) ? 2 : 1; |
1187 |
pic_set_irq (s->irq, 1);
|
1188 |
if (0 == s->dma_auto) { |
1189 |
control (s, 0);
|
1190 |
speaker (s, 0);
|
1191 |
} |
1192 |
} |
1193 |
|
1194 |
#ifdef DEBUG_SB16_MOST
|
1195 |
ldebug ("pos %5d free %5d size %5d till % 5d copy %5d written %5d size %5d\n",
|
1196 |
dma_pos, free, dma_len, s->left_till_irq, copy, written, |
1197 |
s->block_size); |
1198 |
#endif
|
1199 |
|
1200 |
while (s->left_till_irq <= 0) { |
1201 |
s->left_till_irq = s->block_size + s->left_till_irq; |
1202 |
} |
1203 |
|
1204 |
return dma_pos;
|
1205 |
} |
1206 |
|
1207 |
static void SB_audio_callback (void *opaque, int free) |
1208 |
{ |
1209 |
SB16State *s = opaque; |
1210 |
s->audio_free = free; |
1211 |
} |
1212 |
|
1213 |
static void SB_save (QEMUFile *f, void *opaque) |
1214 |
{ |
1215 |
SB16State *s = opaque; |
1216 |
|
1217 |
qemu_put_be32s (f, &s->irq); |
1218 |
qemu_put_be32s (f, &s->dma); |
1219 |
qemu_put_be32s (f, &s->hdma); |
1220 |
qemu_put_be32s (f, &s->port); |
1221 |
qemu_put_be32s (f, &s->ver); |
1222 |
qemu_put_be32s (f, &s->in_index); |
1223 |
qemu_put_be32s (f, &s->out_data_len); |
1224 |
qemu_put_be32s (f, &s->fmt_stereo); |
1225 |
qemu_put_be32s (f, &s->fmt_signed); |
1226 |
qemu_put_be32s (f, &s->fmt_bits); |
1227 |
qemu_put_be32s (f, &s->fmt); |
1228 |
qemu_put_be32s (f, &s->dma_auto); |
1229 |
qemu_put_be32s (f, &s->block_size); |
1230 |
qemu_put_be32s (f, &s->fifo); |
1231 |
qemu_put_be32s (f, &s->freq); |
1232 |
qemu_put_be32s (f, &s->time_const); |
1233 |
qemu_put_be32s (f, &s->speaker); |
1234 |
qemu_put_be32s (f, &s->needed_bytes); |
1235 |
qemu_put_be32s (f, &s->cmd); |
1236 |
qemu_put_be32s (f, &s->use_hdma); |
1237 |
qemu_put_be32s (f, &s->highspeed); |
1238 |
qemu_put_be32s (f, &s->can_write); |
1239 |
qemu_put_be32s (f, &s->v2x6); |
1240 |
|
1241 |
qemu_put_8s (f, &s->csp_param); |
1242 |
qemu_put_8s (f, &s->csp_value); |
1243 |
qemu_put_8s (f, &s->csp_mode); |
1244 |
qemu_put_8s (f, &s->csp_param); |
1245 |
qemu_put_buffer (f, s->csp_regs, 256);
|
1246 |
qemu_put_8s (f, &s->csp_index); |
1247 |
qemu_put_buffer (f, s->csp_reg83, 4);
|
1248 |
qemu_put_be32s (f, &s->csp_reg83r); |
1249 |
qemu_put_be32s (f, &s->csp_reg83w); |
1250 |
|
1251 |
qemu_put_buffer (f, s->in2_data, sizeof (s->in2_data));
|
1252 |
qemu_put_buffer (f, s->out_data, sizeof (s->out_data));
|
1253 |
qemu_put_8s (f, &s->test_reg); |
1254 |
qemu_put_8s (f, &s->last_read_byte); |
1255 |
|
1256 |
qemu_put_be32s (f, &s->nzero); |
1257 |
qemu_put_be32s (f, &s->left_till_irq); |
1258 |
qemu_put_be32s (f, &s->dma_running); |
1259 |
qemu_put_be32s (f, &s->bytes_per_second); |
1260 |
qemu_put_be32s (f, &s->align); |
1261 |
|
1262 |
qemu_put_be32s (f, &s->mixer_nreg); |
1263 |
qemu_put_buffer (f, s->mixer_regs, 256);
|
1264 |
} |
1265 |
|
1266 |
static int SB_load (QEMUFile *f, void *opaque, int version_id) |
1267 |
{ |
1268 |
SB16State *s = opaque; |
1269 |
|
1270 |
if (version_id != 1) { |
1271 |
return -EINVAL;
|
1272 |
} |
1273 |
|
1274 |
qemu_get_be32s (f, &s->irq); |
1275 |
qemu_get_be32s (f, &s->dma); |
1276 |
qemu_get_be32s (f, &s->hdma); |
1277 |
qemu_get_be32s (f, &s->port); |
1278 |
qemu_get_be32s (f, &s->ver); |
1279 |
qemu_get_be32s (f, &s->in_index); |
1280 |
qemu_get_be32s (f, &s->out_data_len); |
1281 |
qemu_get_be32s (f, &s->fmt_stereo); |
1282 |
qemu_get_be32s (f, &s->fmt_signed); |
1283 |
qemu_get_be32s (f, &s->fmt_bits); |
1284 |
qemu_get_be32s (f, &s->fmt); |
1285 |
qemu_get_be32s (f, &s->dma_auto); |
1286 |
qemu_get_be32s (f, &s->block_size); |
1287 |
qemu_get_be32s (f, &s->fifo); |
1288 |
qemu_get_be32s (f, &s->freq); |
1289 |
qemu_get_be32s (f, &s->time_const); |
1290 |
qemu_get_be32s (f, &s->speaker); |
1291 |
qemu_get_be32s (f, &s->needed_bytes); |
1292 |
qemu_get_be32s (f, &s->cmd); |
1293 |
qemu_get_be32s (f, &s->use_hdma); |
1294 |
qemu_get_be32s (f, &s->highspeed); |
1295 |
qemu_get_be32s (f, &s->can_write); |
1296 |
qemu_get_be32s (f, &s->v2x6); |
1297 |
|
1298 |
qemu_get_8s (f, &s->csp_param); |
1299 |
qemu_get_8s (f, &s->csp_value); |
1300 |
qemu_get_8s (f, &s->csp_mode); |
1301 |
qemu_get_8s (f, &s->csp_param); |
1302 |
qemu_get_buffer (f, s->csp_regs, 256);
|
1303 |
qemu_get_8s (f, &s->csp_index); |
1304 |
qemu_get_buffer (f, s->csp_reg83, 4);
|
1305 |
qemu_get_be32s (f, &s->csp_reg83r); |
1306 |
qemu_get_be32s (f, &s->csp_reg83w); |
1307 |
|
1308 |
qemu_get_buffer (f, s->in2_data, sizeof (s->in2_data));
|
1309 |
qemu_get_buffer (f, s->out_data, sizeof (s->out_data));
|
1310 |
qemu_get_8s (f, &s->test_reg); |
1311 |
qemu_get_8s (f, &s->last_read_byte); |
1312 |
|
1313 |
qemu_get_be32s (f, &s->nzero); |
1314 |
qemu_get_be32s (f, &s->left_till_irq); |
1315 |
qemu_get_be32s (f, &s->dma_running); |
1316 |
qemu_get_be32s (f, &s->bytes_per_second); |
1317 |
qemu_get_be32s (f, &s->align); |
1318 |
|
1319 |
qemu_get_be32s (f, &s->mixer_nreg); |
1320 |
qemu_get_buffer (f, s->mixer_regs, 256);
|
1321 |
|
1322 |
if (s->voice) {
|
1323 |
AUD_close_out (&s->card, s->voice); |
1324 |
s->voice = NULL;
|
1325 |
} |
1326 |
|
1327 |
if (s->dma_running) {
|
1328 |
if (s->freq) {
|
1329 |
audsettings_t as; |
1330 |
|
1331 |
s->audio_free = 0;
|
1332 |
|
1333 |
as.freq = s->freq; |
1334 |
as.nchannels = 1 << s->fmt_stereo;
|
1335 |
as.fmt = s->fmt; |
1336 |
|
1337 |
s->voice = AUD_open_out ( |
1338 |
&s->card, |
1339 |
s->voice, |
1340 |
"sb16",
|
1341 |
s, |
1342 |
SB_audio_callback, |
1343 |
&as |
1344 |
); |
1345 |
} |
1346 |
|
1347 |
control (s, 1);
|
1348 |
speaker (s, s->speaker); |
1349 |
} |
1350 |
return 0; |
1351 |
} |
1352 |
|
1353 |
int SB16_init (AudioState *audio)
|
1354 |
{ |
1355 |
SB16State *s; |
1356 |
int i;
|
1357 |
static const uint8_t dsp_write_ports[] = {0x6, 0xc}; |
1358 |
static const uint8_t dsp_read_ports[] = {0x6, 0xa, 0xc, 0xd, 0xe, 0xf}; |
1359 |
|
1360 |
if (!audio) {
|
1361 |
dolog ("No audio state\n");
|
1362 |
return -1; |
1363 |
} |
1364 |
|
1365 |
s = qemu_mallocz (sizeof (*s));
|
1366 |
if (!s) {
|
1367 |
dolog ("Could not allocate memory for SB16 (%d bytes)\n",
|
1368 |
sizeof (*s));
|
1369 |
return -1; |
1370 |
} |
1371 |
|
1372 |
s->cmd = -1;
|
1373 |
s->irq = conf.irq; |
1374 |
s->dma = conf.dma; |
1375 |
s->hdma = conf.hdma; |
1376 |
s->port = conf.port; |
1377 |
s->ver = conf.ver_lo | (conf.ver_hi << 8);
|
1378 |
|
1379 |
s->mixer_regs[0x80] = magic_of_irq (s->irq);
|
1380 |
s->mixer_regs[0x81] = (1 << s->dma) | (1 << s->hdma); |
1381 |
s->mixer_regs[0x82] = 2 << 5; |
1382 |
|
1383 |
s->csp_regs[5] = 1; |
1384 |
s->csp_regs[9] = 0xf8; |
1385 |
|
1386 |
reset_mixer (s); |
1387 |
s->aux_ts = qemu_new_timer (vm_clock, aux_timer, s); |
1388 |
if (!s->aux_ts) {
|
1389 |
dolog ("warning: Could not create auxiliary timer\n");
|
1390 |
} |
1391 |
|
1392 |
for (i = 0; i < LENOFA (dsp_write_ports); i++) { |
1393 |
register_ioport_write (s->port + dsp_write_ports[i], 1, 1, dsp_write, s); |
1394 |
} |
1395 |
|
1396 |
for (i = 0; i < LENOFA (dsp_read_ports); i++) { |
1397 |
register_ioport_read (s->port + dsp_read_ports[i], 1, 1, dsp_read, s); |
1398 |
} |
1399 |
|
1400 |
register_ioport_write (s->port + 0x4, 1, 1, mixer_write_indexb, s); |
1401 |
register_ioport_write (s->port + 0x4, 1, 2, mixer_write_indexw, s); |
1402 |
register_ioport_read (s->port + 0x5, 1, 1, mixer_read, s); |
1403 |
register_ioport_write (s->port + 0x5, 1, 1, mixer_write_datab, s); |
1404 |
|
1405 |
DMA_register_channel (s->hdma, SB_read_DMA, s); |
1406 |
DMA_register_channel (s->dma, SB_read_DMA, s); |
1407 |
s->can_write = 1;
|
1408 |
|
1409 |
register_savevm ("sb16", 0, 1, SB_save, SB_load, s); |
1410 |
AUD_register_card (audio, "sb16", &s->card);
|
1411 |
return 0; |
1412 |
} |