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| 1 |
/*
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|---|---|
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* QEMU Soundblaster 16 emulation
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*
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* Copyright (c) 2003-2005 Vassili Karpov (malc)
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "hw.h" |
| 25 |
#include "audiodev.h" |
| 26 |
#include "audio/audio.h" |
| 27 |
#include "isa.h" |
| 28 |
#include "qdev.h" |
| 29 |
#include "qemu-timer.h" |
| 30 |
#include "host-utils.h" |
| 31 |
|
| 32 |
#define dolog(...) AUD_log ("sb16", __VA_ARGS__) |
| 33 |
|
| 34 |
/* #define DEBUG */
|
| 35 |
/* #define DEBUG_SB16_MOST */
|
| 36 |
|
| 37 |
#ifdef DEBUG
|
| 38 |
#define ldebug(...) dolog (__VA_ARGS__)
|
| 39 |
#else
|
| 40 |
#define ldebug(...)
|
| 41 |
#endif
|
| 42 |
|
| 43 |
#define IO_READ_PROTO(name) \
|
| 44 |
uint32_t name (void *opaque, uint32_t nport)
|
| 45 |
#define IO_WRITE_PROTO(name) \
|
| 46 |
void name (void *opaque, uint32_t nport, uint32_t val) |
| 47 |
|
| 48 |
static const char e3[] = "COPYRIGHT (C) CREATIVE TECHNOLOGY LTD, 1992."; |
| 49 |
|
| 50 |
typedef struct SB16State { |
| 51 |
ISADevice dev; |
| 52 |
QEMUSoundCard card; |
| 53 |
qemu_irq pic; |
| 54 |
uint32_t irq; |
| 55 |
uint32_t dma; |
| 56 |
uint32_t hdma; |
| 57 |
uint32_t port; |
| 58 |
uint32_t ver; |
| 59 |
|
| 60 |
int in_index;
|
| 61 |
int out_data_len;
|
| 62 |
int fmt_stereo;
|
| 63 |
int fmt_signed;
|
| 64 |
int fmt_bits;
|
| 65 |
audfmt_e fmt; |
| 66 |
int dma_auto;
|
| 67 |
int block_size;
|
| 68 |
int fifo;
|
| 69 |
int freq;
|
| 70 |
int time_const;
|
| 71 |
int speaker;
|
| 72 |
int needed_bytes;
|
| 73 |
int cmd;
|
| 74 |
int use_hdma;
|
| 75 |
int highspeed;
|
| 76 |
int can_write;
|
| 77 |
|
| 78 |
int v2x6;
|
| 79 |
|
| 80 |
uint8_t csp_param; |
| 81 |
uint8_t csp_value; |
| 82 |
uint8_t csp_mode; |
| 83 |
uint8_t csp_regs[256];
|
| 84 |
uint8_t csp_index; |
| 85 |
uint8_t csp_reg83[4];
|
| 86 |
int csp_reg83r;
|
| 87 |
int csp_reg83w;
|
| 88 |
|
| 89 |
uint8_t in2_data[10];
|
| 90 |
uint8_t out_data[50];
|
| 91 |
uint8_t test_reg; |
| 92 |
uint8_t last_read_byte; |
| 93 |
int nzero;
|
| 94 |
|
| 95 |
int left_till_irq;
|
| 96 |
|
| 97 |
int dma_running;
|
| 98 |
int bytes_per_second;
|
| 99 |
int align;
|
| 100 |
int audio_free;
|
| 101 |
SWVoiceOut *voice; |
| 102 |
|
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QEMUTimer *aux_ts; |
| 104 |
/* mixer state */
|
| 105 |
int mixer_nreg;
|
| 106 |
uint8_t mixer_regs[256];
|
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} SB16State; |
| 108 |
|
| 109 |
static void SB_audio_callback (void *opaque, int free); |
| 110 |
|
| 111 |
static int magic_of_irq (int irq) |
| 112 |
{
|
| 113 |
switch (irq) {
|
| 114 |
case 5: |
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return 2; |
| 116 |
case 7: |
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return 4; |
| 118 |
case 9: |
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return 1; |
| 120 |
case 10: |
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return 8; |
| 122 |
default:
|
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dolog ("bad irq %d\n", irq);
|
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return 2; |
| 125 |
} |
| 126 |
} |
| 127 |
|
| 128 |
static int irq_of_magic (int magic) |
| 129 |
{
|
| 130 |
switch (magic) {
|
| 131 |
case 1: |
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return 9; |
| 133 |
case 2: |
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return 5; |
| 135 |
case 4: |
| 136 |
return 7; |
| 137 |
case 8: |
| 138 |
return 10; |
| 139 |
default:
|
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dolog ("bad irq magic %d\n", magic);
|
| 141 |
return -1; |
| 142 |
} |
| 143 |
} |
| 144 |
|
| 145 |
#if 0
|
| 146 |
static void log_dsp (SB16State *dsp)
|
| 147 |
{
|
| 148 |
ldebug ("%s:%s:%d:%s:dmasize=%d:freq=%d:const=%d:speaker=%d\n",
|
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dsp->fmt_stereo ? "Stereo" : "Mono",
|
| 150 |
dsp->fmt_signed ? "Signed" : "Unsigned",
|
| 151 |
dsp->fmt_bits,
|
| 152 |
dsp->dma_auto ? "Auto" : "Single",
|
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dsp->block_size,
|
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dsp->freq,
|
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dsp->time_const,
|
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dsp->speaker);
|
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}
|
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#endif
|
| 159 |
|
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static void speaker (SB16State *s, int on) |
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{
|
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s->speaker = on; |
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/* AUD_enable (s->voice, on); */
|
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} |
| 165 |
|
| 166 |
static void control (SB16State *s, int hold) |
| 167 |
{
|
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int dma = s->use_hdma ? s->hdma : s->dma;
|
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s->dma_running = hold; |
| 170 |
|
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ldebug ("hold %d high %d dma %d\n", hold, s->use_hdma, dma);
|
| 172 |
|
| 173 |
if (hold) {
|
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DMA_hold_DREQ (dma); |
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AUD_set_active_out (s->voice, 1);
|
| 176 |
} |
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else {
|
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DMA_release_DREQ (dma); |
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AUD_set_active_out (s->voice, 0);
|
| 180 |
} |
| 181 |
} |
| 182 |
|
| 183 |
static void aux_timer (void *opaque) |
| 184 |
{
|
| 185 |
SB16State *s = opaque; |
| 186 |
s->can_write = 1;
|
| 187 |
qemu_irq_raise (s->pic); |
| 188 |
} |
| 189 |
|
| 190 |
#define DMA8_AUTO 1 |
| 191 |
#define DMA8_HIGH 2 |
| 192 |
|
| 193 |
static void continue_dma8 (SB16State *s) |
| 194 |
{
|
| 195 |
if (s->freq > 0) { |
| 196 |
struct audsettings as;
|
| 197 |
|
| 198 |
s->audio_free = 0;
|
| 199 |
|
| 200 |
as.freq = s->freq; |
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as.nchannels = 1 << s->fmt_stereo;
|
| 202 |
as.fmt = s->fmt; |
| 203 |
as.endianness = 0;
|
| 204 |
|
| 205 |
s->voice = AUD_open_out ( |
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&s->card, |
| 207 |
s->voice, |
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"sb16",
|
| 209 |
s, |
| 210 |
SB_audio_callback, |
| 211 |
&as |
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); |
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} |
| 214 |
|
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control (s, 1);
|
| 216 |
} |
| 217 |
|
| 218 |
static void dma_cmd8 (SB16State *s, int mask, int dma_len) |
| 219 |
{
|
| 220 |
s->fmt = AUD_FMT_U8; |
| 221 |
s->use_hdma = 0;
|
| 222 |
s->fmt_bits = 8;
|
| 223 |
s->fmt_signed = 0;
|
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s->fmt_stereo = (s->mixer_regs[0x0e] & 2) != 0; |
| 225 |
if (-1 == s->time_const) { |
| 226 |
if (s->freq <= 0) |
| 227 |
s->freq = 11025;
|
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} |
| 229 |
else {
|
| 230 |
int tmp = (256 - s->time_const); |
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s->freq = (1000000 + (tmp / 2)) / tmp; |
| 232 |
} |
| 233 |
|
| 234 |
if (dma_len != -1) { |
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s->block_size = dma_len << s->fmt_stereo; |
| 236 |
} |
| 237 |
else {
|
| 238 |
/* This is apparently the only way to make both Act1/PL
|
| 239 |
and SecondReality/FC work
|
| 240 |
|
| 241 |
Act1 sets block size via command 0x48 and it's an odd number
|
| 242 |
SR does the same with even number
|
| 243 |
Both use stereo, and Creatives own documentation states that
|
| 244 |
0x48 sets block size in bytes less one.. go figure */
|
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s->block_size &= ~s->fmt_stereo; |
| 246 |
} |
| 247 |
|
| 248 |
s->freq >>= s->fmt_stereo; |
| 249 |
s->left_till_irq = s->block_size; |
| 250 |
s->bytes_per_second = (s->freq << s->fmt_stereo); |
| 251 |
/* s->highspeed = (mask & DMA8_HIGH) != 0; */
|
| 252 |
s->dma_auto = (mask & DMA8_AUTO) != 0;
|
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s->align = (1 << s->fmt_stereo) - 1; |
| 254 |
|
| 255 |
if (s->block_size & s->align) {
|
| 256 |
dolog ("warning: misaligned block size %d, alignment %d\n",
|
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s->block_size, s->align + 1);
|
| 258 |
} |
| 259 |
|
| 260 |
ldebug ("freq %d, stereo %d, sign %d, bits %d, "
|
| 261 |
"dma %d, auto %d, fifo %d, high %d\n",
|
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s->freq, s->fmt_stereo, s->fmt_signed, s->fmt_bits, |
| 263 |
s->block_size, s->dma_auto, s->fifo, s->highspeed); |
| 264 |
|
| 265 |
continue_dma8 (s); |
| 266 |
speaker (s, 1);
|
| 267 |
} |
| 268 |
|
| 269 |
static void dma_cmd (SB16State *s, uint8_t cmd, uint8_t d0, int dma_len) |
| 270 |
{
|
| 271 |
s->use_hdma = cmd < 0xc0;
|
| 272 |
s->fifo = (cmd >> 1) & 1; |
| 273 |
s->dma_auto = (cmd >> 2) & 1; |
| 274 |
s->fmt_signed = (d0 >> 4) & 1; |
| 275 |
s->fmt_stereo = (d0 >> 5) & 1; |
| 276 |
|
| 277 |
switch (cmd >> 4) { |
| 278 |
case 11: |
| 279 |
s->fmt_bits = 16;
|
| 280 |
break;
|
| 281 |
|
| 282 |
case 12: |
| 283 |
s->fmt_bits = 8;
|
| 284 |
break;
|
| 285 |
} |
| 286 |
|
| 287 |
if (-1 != s->time_const) { |
| 288 |
#if 1 |
| 289 |
int tmp = 256 - s->time_const; |
| 290 |
s->freq = (1000000 + (tmp / 2)) / tmp; |
| 291 |
#else
|
| 292 |
/* s->freq = 1000000 / ((255 - s->time_const) << s->fmt_stereo); */
|
| 293 |
s->freq = 1000000 / ((255 - s->time_const)); |
| 294 |
#endif
|
| 295 |
s->time_const = -1;
|
| 296 |
} |
| 297 |
|
| 298 |
s->block_size = dma_len + 1;
|
| 299 |
s->block_size <<= (s->fmt_bits == 16);
|
| 300 |
if (!s->dma_auto) {
|
| 301 |
/* It is clear that for DOOM and auto-init this value
|
| 302 |
shouldn't take stereo into account, while Miles Sound Systems
|
| 303 |
setsound.exe with single transfer mode wouldn't work without it
|
| 304 |
wonders of SB16 yet again */
|
| 305 |
s->block_size <<= s->fmt_stereo; |
| 306 |
} |
| 307 |
|
| 308 |
ldebug ("freq %d, stereo %d, sign %d, bits %d, "
|
| 309 |
"dma %d, auto %d, fifo %d, high %d\n",
|
| 310 |
s->freq, s->fmt_stereo, s->fmt_signed, s->fmt_bits, |
| 311 |
s->block_size, s->dma_auto, s->fifo, s->highspeed); |
| 312 |
|
| 313 |
if (16 == s->fmt_bits) { |
| 314 |
if (s->fmt_signed) {
|
| 315 |
s->fmt = AUD_FMT_S16; |
| 316 |
} |
| 317 |
else {
|
| 318 |
s->fmt = AUD_FMT_U16; |
| 319 |
} |
| 320 |
} |
| 321 |
else {
|
| 322 |
if (s->fmt_signed) {
|
| 323 |
s->fmt = AUD_FMT_S8; |
| 324 |
} |
| 325 |
else {
|
| 326 |
s->fmt = AUD_FMT_U8; |
| 327 |
} |
| 328 |
} |
| 329 |
|
| 330 |
s->left_till_irq = s->block_size; |
| 331 |
|
| 332 |
s->bytes_per_second = (s->freq << s->fmt_stereo) << (s->fmt_bits == 16);
|
| 333 |
s->highspeed = 0;
|
| 334 |
s->align = (1 << (s->fmt_stereo + (s->fmt_bits == 16))) - 1; |
| 335 |
if (s->block_size & s->align) {
|
| 336 |
dolog ("warning: misaligned block size %d, alignment %d\n",
|
| 337 |
s->block_size, s->align + 1);
|
| 338 |
} |
| 339 |
|
| 340 |
if (s->freq) {
|
| 341 |
struct audsettings as;
|
| 342 |
|
| 343 |
s->audio_free = 0;
|
| 344 |
|
| 345 |
as.freq = s->freq; |
| 346 |
as.nchannels = 1 << s->fmt_stereo;
|
| 347 |
as.fmt = s->fmt; |
| 348 |
as.endianness = 0;
|
| 349 |
|
| 350 |
s->voice = AUD_open_out ( |
| 351 |
&s->card, |
| 352 |
s->voice, |
| 353 |
"sb16",
|
| 354 |
s, |
| 355 |
SB_audio_callback, |
| 356 |
&as |
| 357 |
); |
| 358 |
} |
| 359 |
|
| 360 |
control (s, 1);
|
| 361 |
speaker (s, 1);
|
| 362 |
} |
| 363 |
|
| 364 |
static inline void dsp_out_data (SB16State *s, uint8_t val) |
| 365 |
{
|
| 366 |
ldebug ("outdata %#x\n", val);
|
| 367 |
if ((size_t) s->out_data_len < sizeof (s->out_data)) { |
| 368 |
s->out_data[s->out_data_len++] = val; |
| 369 |
} |
| 370 |
} |
| 371 |
|
| 372 |
static inline uint8_t dsp_get_data (SB16State *s) |
| 373 |
{
|
| 374 |
if (s->in_index) {
|
| 375 |
return s->in2_data[--s->in_index];
|
| 376 |
} |
| 377 |
else {
|
| 378 |
dolog ("buffer underflow\n");
|
| 379 |
return 0; |
| 380 |
} |
| 381 |
} |
| 382 |
|
| 383 |
static void command (SB16State *s, uint8_t cmd) |
| 384 |
{
|
| 385 |
ldebug ("command %#x\n", cmd);
|
| 386 |
|
| 387 |
if (cmd > 0xaf && cmd < 0xd0) { |
| 388 |
if (cmd & 8) { |
| 389 |
dolog ("ADC not yet supported (command %#x)\n", cmd);
|
| 390 |
} |
| 391 |
|
| 392 |
switch (cmd >> 4) { |
| 393 |
case 11: |
| 394 |
case 12: |
| 395 |
break;
|
| 396 |
default:
|
| 397 |
dolog ("%#x wrong bits\n", cmd);
|
| 398 |
} |
| 399 |
s->needed_bytes = 3;
|
| 400 |
} |
| 401 |
else {
|
| 402 |
s->needed_bytes = 0;
|
| 403 |
|
| 404 |
switch (cmd) {
|
| 405 |
case 0x03: |
| 406 |
dsp_out_data (s, 0x10); /* s->csp_param); */ |
| 407 |
goto warn;
|
| 408 |
|
| 409 |
case 0x04: |
| 410 |
s->needed_bytes = 1;
|
| 411 |
goto warn;
|
| 412 |
|
| 413 |
case 0x05: |
| 414 |
s->needed_bytes = 2;
|
| 415 |
goto warn;
|
| 416 |
|
| 417 |
case 0x08: |
| 418 |
/* __asm__ ("int3"); */
|
| 419 |
goto warn;
|
| 420 |
|
| 421 |
case 0x0e: |
| 422 |
s->needed_bytes = 2;
|
| 423 |
goto warn;
|
| 424 |
|
| 425 |
case 0x09: |
| 426 |
dsp_out_data (s, 0xf8);
|
| 427 |
goto warn;
|
| 428 |
|
| 429 |
case 0x0f: |
| 430 |
s->needed_bytes = 1;
|
| 431 |
goto warn;
|
| 432 |
|
| 433 |
case 0x10: |
| 434 |
s->needed_bytes = 1;
|
| 435 |
goto warn;
|
| 436 |
|
| 437 |
case 0x14: |
| 438 |
s->needed_bytes = 2;
|
| 439 |
s->block_size = 0;
|
| 440 |
break;
|
| 441 |
|
| 442 |
case 0x1c: /* Auto-Initialize DMA DAC, 8-bit */ |
| 443 |
dma_cmd8 (s, DMA8_AUTO, -1);
|
| 444 |
break;
|
| 445 |
|
| 446 |
case 0x20: /* Direct ADC, Juice/PL */ |
| 447 |
dsp_out_data (s, 0xff);
|
| 448 |
goto warn;
|
| 449 |
|
| 450 |
case 0x35: |
| 451 |
dolog ("0x35 - MIDI command not implemented\n");
|
| 452 |
break;
|
| 453 |
|
| 454 |
case 0x40: |
| 455 |
s->freq = -1;
|
| 456 |
s->time_const = -1;
|
| 457 |
s->needed_bytes = 1;
|
| 458 |
break;
|
| 459 |
|
| 460 |
case 0x41: |
| 461 |
s->freq = -1;
|
| 462 |
s->time_const = -1;
|
| 463 |
s->needed_bytes = 2;
|
| 464 |
break;
|
| 465 |
|
| 466 |
case 0x42: |
| 467 |
s->freq = -1;
|
| 468 |
s->time_const = -1;
|
| 469 |
s->needed_bytes = 2;
|
| 470 |
goto warn;
|
| 471 |
|
| 472 |
case 0x45: |
| 473 |
dsp_out_data (s, 0xaa);
|
| 474 |
goto warn;
|
| 475 |
|
| 476 |
case 0x47: /* Continue Auto-Initialize DMA 16bit */ |
| 477 |
break;
|
| 478 |
|
| 479 |
case 0x48: |
| 480 |
s->needed_bytes = 2;
|
| 481 |
break;
|
| 482 |
|
| 483 |
case 0x74: |
| 484 |
s->needed_bytes = 2; /* DMA DAC, 4-bit ADPCM */ |
| 485 |
dolog ("0x75 - DMA DAC, 4-bit ADPCM not implemented\n");
|
| 486 |
break;
|
| 487 |
|
| 488 |
case 0x75: /* DMA DAC, 4-bit ADPCM Reference */ |
| 489 |
s->needed_bytes = 2;
|
| 490 |
dolog ("0x74 - DMA DAC, 4-bit ADPCM Reference not implemented\n");
|
| 491 |
break;
|
| 492 |
|
| 493 |
case 0x76: /* DMA DAC, 2.6-bit ADPCM */ |
| 494 |
s->needed_bytes = 2;
|
| 495 |
dolog ("0x74 - DMA DAC, 2.6-bit ADPCM not implemented\n");
|
| 496 |
break;
|
| 497 |
|
| 498 |
case 0x77: /* DMA DAC, 2.6-bit ADPCM Reference */ |
| 499 |
s->needed_bytes = 2;
|
| 500 |
dolog ("0x74 - DMA DAC, 2.6-bit ADPCM Reference not implemented\n");
|
| 501 |
break;
|
| 502 |
|
| 503 |
case 0x7d: |
| 504 |
dolog ("0x7d - Autio-Initialize DMA DAC, 4-bit ADPCM Reference\n");
|
| 505 |
dolog ("not implemented\n");
|
| 506 |
break;
|
| 507 |
|
| 508 |
case 0x7f: |
| 509 |
dolog ( |
| 510 |
"0x7d - Autio-Initialize DMA DAC, 2.6-bit ADPCM Reference\n"
|
| 511 |
); |
| 512 |
dolog ("not implemented\n");
|
| 513 |
break;
|
| 514 |
|
| 515 |
case 0x80: |
| 516 |
s->needed_bytes = 2;
|
| 517 |
break;
|
| 518 |
|
| 519 |
case 0x90: |
| 520 |
case 0x91: |
| 521 |
dma_cmd8 (s, ((cmd & 1) == 0) | DMA8_HIGH, -1); |
| 522 |
break;
|
| 523 |
|
| 524 |
case 0xd0: /* halt DMA operation. 8bit */ |
| 525 |
control (s, 0);
|
| 526 |
break;
|
| 527 |
|
| 528 |
case 0xd1: /* speaker on */ |
| 529 |
speaker (s, 1);
|
| 530 |
break;
|
| 531 |
|
| 532 |
case 0xd3: /* speaker off */ |
| 533 |
speaker (s, 0);
|
| 534 |
break;
|
| 535 |
|
| 536 |
case 0xd4: /* continue DMA operation. 8bit */ |
| 537 |
/* KQ6 (or maybe Sierras audblst.drv in general) resets
|
| 538 |
the frequency between halt/continue */
|
| 539 |
continue_dma8 (s); |
| 540 |
break;
|
| 541 |
|
| 542 |
case 0xd5: /* halt DMA operation. 16bit */ |
| 543 |
control (s, 0);
|
| 544 |
break;
|
| 545 |
|
| 546 |
case 0xd6: /* continue DMA operation. 16bit */ |
| 547 |
control (s, 1);
|
| 548 |
break;
|
| 549 |
|
| 550 |
case 0xd9: /* exit auto-init DMA after this block. 16bit */ |
| 551 |
s->dma_auto = 0;
|
| 552 |
break;
|
| 553 |
|
| 554 |
case 0xda: /* exit auto-init DMA after this block. 8bit */ |
| 555 |
s->dma_auto = 0;
|
| 556 |
break;
|
| 557 |
|
| 558 |
case 0xe0: /* DSP identification */ |
| 559 |
s->needed_bytes = 1;
|
| 560 |
break;
|
| 561 |
|
| 562 |
case 0xe1: |
| 563 |
dsp_out_data (s, s->ver & 0xff);
|
| 564 |
dsp_out_data (s, s->ver >> 8);
|
| 565 |
break;
|
| 566 |
|
| 567 |
case 0xe2: |
| 568 |
s->needed_bytes = 1;
|
| 569 |
goto warn;
|
| 570 |
|
| 571 |
case 0xe3: |
| 572 |
{
|
| 573 |
int i;
|
| 574 |
for (i = sizeof (e3) - 1; i >= 0; --i) |
| 575 |
dsp_out_data (s, e3[i]); |
| 576 |
} |
| 577 |
break;
|
| 578 |
|
| 579 |
case 0xe4: /* write test reg */ |
| 580 |
s->needed_bytes = 1;
|
| 581 |
break;
|
| 582 |
|
| 583 |
case 0xe7: |
| 584 |
dolog ("Attempt to probe for ESS (0xe7)?\n");
|
| 585 |
break;
|
| 586 |
|
| 587 |
case 0xe8: /* read test reg */ |
| 588 |
dsp_out_data (s, s->test_reg); |
| 589 |
break;
|
| 590 |
|
| 591 |
case 0xf2: |
| 592 |
case 0xf3: |
| 593 |
dsp_out_data (s, 0xaa);
|
| 594 |
s->mixer_regs[0x82] |= (cmd == 0xf2) ? 1 : 2; |
| 595 |
qemu_irq_raise (s->pic); |
| 596 |
break;
|
| 597 |
|
| 598 |
case 0xf9: |
| 599 |
s->needed_bytes = 1;
|
| 600 |
goto warn;
|
| 601 |
|
| 602 |
case 0xfa: |
| 603 |
dsp_out_data (s, 0);
|
| 604 |
goto warn;
|
| 605 |
|
| 606 |
case 0xfc: /* FIXME */ |
| 607 |
dsp_out_data (s, 0);
|
| 608 |
goto warn;
|
| 609 |
|
| 610 |
default:
|
| 611 |
dolog ("Unrecognized command %#x\n", cmd);
|
| 612 |
break;
|
| 613 |
} |
| 614 |
} |
| 615 |
|
| 616 |
if (!s->needed_bytes) {
|
| 617 |
ldebug ("\n");
|
| 618 |
} |
| 619 |
|
| 620 |
exit:
|
| 621 |
if (!s->needed_bytes) {
|
| 622 |
s->cmd = -1;
|
| 623 |
} |
| 624 |
else {
|
| 625 |
s->cmd = cmd; |
| 626 |
} |
| 627 |
return;
|
| 628 |
|
| 629 |
warn:
|
| 630 |
dolog ("warning: command %#x,%d is not truly understood yet\n",
|
| 631 |
cmd, s->needed_bytes); |
| 632 |
goto exit;
|
| 633 |
|
| 634 |
} |
| 635 |
|
| 636 |
static uint16_t dsp_get_lohi (SB16State *s)
|
| 637 |
{
|
| 638 |
uint8_t hi = dsp_get_data (s); |
| 639 |
uint8_t lo = dsp_get_data (s); |
| 640 |
return (hi << 8) | lo; |
| 641 |
} |
| 642 |
|
| 643 |
static uint16_t dsp_get_hilo (SB16State *s)
|
| 644 |
{
|
| 645 |
uint8_t lo = dsp_get_data (s); |
| 646 |
uint8_t hi = dsp_get_data (s); |
| 647 |
return (hi << 8) | lo; |
| 648 |
} |
| 649 |
|
| 650 |
static void complete (SB16State *s) |
| 651 |
{
|
| 652 |
int d0, d1, d2;
|
| 653 |
ldebug ("complete command %#x, in_index %d, needed_bytes %d\n",
|
| 654 |
s->cmd, s->in_index, s->needed_bytes); |
| 655 |
|
| 656 |
if (s->cmd > 0xaf && s->cmd < 0xd0) { |
| 657 |
d2 = dsp_get_data (s); |
| 658 |
d1 = dsp_get_data (s); |
| 659 |
d0 = dsp_get_data (s); |
| 660 |
|
| 661 |
if (s->cmd & 8) { |
| 662 |
dolog ("ADC params cmd = %#x d0 = %d, d1 = %d, d2 = %d\n",
|
| 663 |
s->cmd, d0, d1, d2); |
| 664 |
} |
| 665 |
else {
|
| 666 |
ldebug ("cmd = %#x d0 = %d, d1 = %d, d2 = %d\n",
|
| 667 |
s->cmd, d0, d1, d2); |
| 668 |
dma_cmd (s, s->cmd, d0, d1 + (d2 << 8));
|
| 669 |
} |
| 670 |
} |
| 671 |
else {
|
| 672 |
switch (s->cmd) {
|
| 673 |
case 0x04: |
| 674 |
s->csp_mode = dsp_get_data (s); |
| 675 |
s->csp_reg83r = 0;
|
| 676 |
s->csp_reg83w = 0;
|
| 677 |
ldebug ("CSP command 0x04: mode=%#x\n", s->csp_mode);
|
| 678 |
break;
|
| 679 |
|
| 680 |
case 0x05: |
| 681 |
s->csp_param = dsp_get_data (s); |
| 682 |
s->csp_value = dsp_get_data (s); |
| 683 |
ldebug ("CSP command 0x05: param=%#x value=%#x\n",
|
| 684 |
s->csp_param, |
| 685 |
s->csp_value); |
| 686 |
break;
|
| 687 |
|
| 688 |
case 0x0e: |
| 689 |
d0 = dsp_get_data (s); |
| 690 |
d1 = dsp_get_data (s); |
| 691 |
ldebug ("write CSP register %d <- %#x\n", d1, d0);
|
| 692 |
if (d1 == 0x83) { |
| 693 |
ldebug ("0x83[%d] <- %#x\n", s->csp_reg83r, d0);
|
| 694 |
s->csp_reg83[s->csp_reg83r % 4] = d0;
|
| 695 |
s->csp_reg83r += 1;
|
| 696 |
} |
| 697 |
else {
|
| 698 |
s->csp_regs[d1] = d0; |
| 699 |
} |
| 700 |
break;
|
| 701 |
|
| 702 |
case 0x0f: |
| 703 |
d0 = dsp_get_data (s); |
| 704 |
ldebug ("read CSP register %#x -> %#x, mode=%#x\n",
|
| 705 |
d0, s->csp_regs[d0], s->csp_mode); |
| 706 |
if (d0 == 0x83) { |
| 707 |
ldebug ("0x83[%d] -> %#x\n",
|
| 708 |
s->csp_reg83w, |
| 709 |
s->csp_reg83[s->csp_reg83w % 4]);
|
| 710 |
dsp_out_data (s, s->csp_reg83[s->csp_reg83w % 4]);
|
| 711 |
s->csp_reg83w += 1;
|
| 712 |
} |
| 713 |
else {
|
| 714 |
dsp_out_data (s, s->csp_regs[d0]); |
| 715 |
} |
| 716 |
break;
|
| 717 |
|
| 718 |
case 0x10: |
| 719 |
d0 = dsp_get_data (s); |
| 720 |
dolog ("cmd 0x10 d0=%#x\n", d0);
|
| 721 |
break;
|
| 722 |
|
| 723 |
case 0x14: |
| 724 |
dma_cmd8 (s, 0, dsp_get_lohi (s) + 1); |
| 725 |
break;
|
| 726 |
|
| 727 |
case 0x40: |
| 728 |
s->time_const = dsp_get_data (s); |
| 729 |
ldebug ("set time const %d\n", s->time_const);
|
| 730 |
break;
|
| 731 |
|
| 732 |
case 0x42: /* FT2 sets output freq with this, go figure */ |
| 733 |
#if 0
|
| 734 |
dolog ("cmd 0x42 might not do what it think it should\n");
|
| 735 |
#endif
|
| 736 |
case 0x41: |
| 737 |
s->freq = dsp_get_hilo (s); |
| 738 |
ldebug ("set freq %d\n", s->freq);
|
| 739 |
break;
|
| 740 |
|
| 741 |
case 0x48: |
| 742 |
s->block_size = dsp_get_lohi (s) + 1;
|
| 743 |
ldebug ("set dma block len %d\n", s->block_size);
|
| 744 |
break;
|
| 745 |
|
| 746 |
case 0x74: |
| 747 |
case 0x75: |
| 748 |
case 0x76: |
| 749 |
case 0x77: |
| 750 |
/* ADPCM stuff, ignore */
|
| 751 |
break;
|
| 752 |
|
| 753 |
case 0x80: |
| 754 |
{
|
| 755 |
int freq, samples, bytes;
|
| 756 |
int64_t ticks; |
| 757 |
|
| 758 |
freq = s->freq > 0 ? s->freq : 11025; |
| 759 |
samples = dsp_get_lohi (s) + 1;
|
| 760 |
bytes = samples << s->fmt_stereo << (s->fmt_bits == 16);
|
| 761 |
ticks = muldiv64 (bytes, get_ticks_per_sec (), freq); |
| 762 |
if (ticks < get_ticks_per_sec () / 1024) { |
| 763 |
qemu_irq_raise (s->pic); |
| 764 |
} |
| 765 |
else {
|
| 766 |
if (s->aux_ts) {
|
| 767 |
qemu_mod_timer ( |
| 768 |
s->aux_ts, |
| 769 |
qemu_get_clock_ns (vm_clock) + ticks |
| 770 |
); |
| 771 |
} |
| 772 |
} |
| 773 |
ldebug ("mix silence %d %d %" PRId64 "\n", samples, bytes, ticks); |
| 774 |
} |
| 775 |
break;
|
| 776 |
|
| 777 |
case 0xe0: |
| 778 |
d0 = dsp_get_data (s); |
| 779 |
s->out_data_len = 0;
|
| 780 |
ldebug ("E0 data = %#x\n", d0);
|
| 781 |
dsp_out_data (s, ~d0); |
| 782 |
break;
|
| 783 |
|
| 784 |
case 0xe2: |
| 785 |
#ifdef DEBUG
|
| 786 |
d0 = dsp_get_data (s); |
| 787 |
dolog ("E2 = %#x\n", d0);
|
| 788 |
#endif
|
| 789 |
break;
|
| 790 |
|
| 791 |
case 0xe4: |
| 792 |
s->test_reg = dsp_get_data (s); |
| 793 |
break;
|
| 794 |
|
| 795 |
case 0xf9: |
| 796 |
d0 = dsp_get_data (s); |
| 797 |
ldebug ("command 0xf9 with %#x\n", d0);
|
| 798 |
switch (d0) {
|
| 799 |
case 0x0e: |
| 800 |
dsp_out_data (s, 0xff);
|
| 801 |
break;
|
| 802 |
|
| 803 |
case 0x0f: |
| 804 |
dsp_out_data (s, 0x07);
|
| 805 |
break;
|
| 806 |
|
| 807 |
case 0x37: |
| 808 |
dsp_out_data (s, 0x38);
|
| 809 |
break;
|
| 810 |
|
| 811 |
default:
|
| 812 |
dsp_out_data (s, 0x00);
|
| 813 |
break;
|
| 814 |
} |
| 815 |
break;
|
| 816 |
|
| 817 |
default:
|
| 818 |
dolog ("complete: unrecognized command %#x\n", s->cmd);
|
| 819 |
return;
|
| 820 |
} |
| 821 |
} |
| 822 |
|
| 823 |
ldebug ("\n");
|
| 824 |
s->cmd = -1;
|
| 825 |
} |
| 826 |
|
| 827 |
static void legacy_reset (SB16State *s) |
| 828 |
{
|
| 829 |
struct audsettings as;
|
| 830 |
|
| 831 |
s->freq = 11025;
|
| 832 |
s->fmt_signed = 0;
|
| 833 |
s->fmt_bits = 8;
|
| 834 |
s->fmt_stereo = 0;
|
| 835 |
|
| 836 |
as.freq = s->freq; |
| 837 |
as.nchannels = 1;
|
| 838 |
as.fmt = AUD_FMT_U8; |
| 839 |
as.endianness = 0;
|
| 840 |
|
| 841 |
s->voice = AUD_open_out ( |
| 842 |
&s->card, |
| 843 |
s->voice, |
| 844 |
"sb16",
|
| 845 |
s, |
| 846 |
SB_audio_callback, |
| 847 |
&as |
| 848 |
); |
| 849 |
|
| 850 |
/* Not sure about that... */
|
| 851 |
/* AUD_set_active_out (s->voice, 1); */
|
| 852 |
} |
| 853 |
|
| 854 |
static void reset (SB16State *s) |
| 855 |
{
|
| 856 |
qemu_irq_lower (s->pic); |
| 857 |
if (s->dma_auto) {
|
| 858 |
qemu_irq_raise (s->pic); |
| 859 |
qemu_irq_lower (s->pic); |
| 860 |
} |
| 861 |
|
| 862 |
s->mixer_regs[0x82] = 0; |
| 863 |
s->dma_auto = 0;
|
| 864 |
s->in_index = 0;
|
| 865 |
s->out_data_len = 0;
|
| 866 |
s->left_till_irq = 0;
|
| 867 |
s->needed_bytes = 0;
|
| 868 |
s->block_size = -1;
|
| 869 |
s->nzero = 0;
|
| 870 |
s->highspeed = 0;
|
| 871 |
s->v2x6 = 0;
|
| 872 |
s->cmd = -1;
|
| 873 |
|
| 874 |
dsp_out_data (s, 0xaa);
|
| 875 |
speaker (s, 0);
|
| 876 |
control (s, 0);
|
| 877 |
legacy_reset (s); |
| 878 |
} |
| 879 |
|
| 880 |
static IO_WRITE_PROTO (dsp_write)
|
| 881 |
{
|
| 882 |
SB16State *s = opaque; |
| 883 |
int iport;
|
| 884 |
|
| 885 |
iport = nport - s->port; |
| 886 |
|
| 887 |
ldebug ("write %#x <- %#x\n", nport, val);
|
| 888 |
switch (iport) {
|
| 889 |
case 0x06: |
| 890 |
switch (val) {
|
| 891 |
case 0x00: |
| 892 |
if (s->v2x6 == 1) { |
| 893 |
reset (s); |
| 894 |
} |
| 895 |
s->v2x6 = 0;
|
| 896 |
break;
|
| 897 |
|
| 898 |
case 0x01: |
| 899 |
case 0x03: /* FreeBSD kludge */ |
| 900 |
s->v2x6 = 1;
|
| 901 |
break;
|
| 902 |
|
| 903 |
case 0xc6: |
| 904 |
s->v2x6 = 0; /* Prince of Persia, csp.sys, diagnose.exe */ |
| 905 |
break;
|
| 906 |
|
| 907 |
case 0xb8: /* Panic */ |
| 908 |
reset (s); |
| 909 |
break;
|
| 910 |
|
| 911 |
case 0x39: |
| 912 |
dsp_out_data (s, 0x38);
|
| 913 |
reset (s); |
| 914 |
s->v2x6 = 0x39;
|
| 915 |
break;
|
| 916 |
|
| 917 |
default:
|
| 918 |
s->v2x6 = val; |
| 919 |
break;
|
| 920 |
} |
| 921 |
break;
|
| 922 |
|
| 923 |
case 0x0c: /* write data or command | write status */ |
| 924 |
/* if (s->highspeed) */
|
| 925 |
/* break; */
|
| 926 |
|
| 927 |
if (0 == s->needed_bytes) { |
| 928 |
command (s, val); |
| 929 |
#if 0
|
| 930 |
if (0 == s->needed_bytes) {
|
| 931 |
log_dsp (s);
|
| 932 |
}
|
| 933 |
#endif
|
| 934 |
} |
| 935 |
else {
|
| 936 |
if (s->in_index == sizeof (s->in2_data)) { |
| 937 |
dolog ("in data overrun\n");
|
| 938 |
} |
| 939 |
else {
|
| 940 |
s->in2_data[s->in_index++] = val; |
| 941 |
if (s->in_index == s->needed_bytes) {
|
| 942 |
s->needed_bytes = 0;
|
| 943 |
complete (s); |
| 944 |
#if 0
|
| 945 |
log_dsp (s);
|
| 946 |
#endif
|
| 947 |
} |
| 948 |
} |
| 949 |
} |
| 950 |
break;
|
| 951 |
|
| 952 |
default:
|
| 953 |
ldebug ("(nport=%#x, val=%#x)\n", nport, val);
|
| 954 |
break;
|
| 955 |
} |
| 956 |
} |
| 957 |
|
| 958 |
static IO_READ_PROTO (dsp_read)
|
| 959 |
{
|
| 960 |
SB16State *s = opaque; |
| 961 |
int iport, retval, ack = 0; |
| 962 |
|
| 963 |
iport = nport - s->port; |
| 964 |
|
| 965 |
switch (iport) {
|
| 966 |
case 0x06: /* reset */ |
| 967 |
retval = 0xff;
|
| 968 |
break;
|
| 969 |
|
| 970 |
case 0x0a: /* read data */ |
| 971 |
if (s->out_data_len) {
|
| 972 |
retval = s->out_data[--s->out_data_len]; |
| 973 |
s->last_read_byte = retval; |
| 974 |
} |
| 975 |
else {
|
| 976 |
if (s->cmd != -1) { |
| 977 |
dolog ("empty output buffer for command %#x\n",
|
| 978 |
s->cmd); |
| 979 |
} |
| 980 |
retval = s->last_read_byte; |
| 981 |
/* goto error; */
|
| 982 |
} |
| 983 |
break;
|
| 984 |
|
| 985 |
case 0x0c: /* 0 can write */ |
| 986 |
retval = s->can_write ? 0 : 0x80; |
| 987 |
break;
|
| 988 |
|
| 989 |
case 0x0d: /* timer interrupt clear */ |
| 990 |
/* dolog ("timer interrupt clear\n"); */
|
| 991 |
retval = 0;
|
| 992 |
break;
|
| 993 |
|
| 994 |
case 0x0e: /* data available status | irq 8 ack */ |
| 995 |
retval = (!s->out_data_len || s->highspeed) ? 0 : 0x80; |
| 996 |
if (s->mixer_regs[0x82] & 1) { |
| 997 |
ack = 1;
|
| 998 |
s->mixer_regs[0x82] &= 1; |
| 999 |
qemu_irq_lower (s->pic); |
| 1000 |
} |
| 1001 |
break;
|
| 1002 |
|
| 1003 |
case 0x0f: /* irq 16 ack */ |
| 1004 |
retval = 0xff;
|
| 1005 |
if (s->mixer_regs[0x82] & 2) { |
| 1006 |
ack = 1;
|
| 1007 |
s->mixer_regs[0x82] &= 2; |
| 1008 |
qemu_irq_lower (s->pic); |
| 1009 |
} |
| 1010 |
break;
|
| 1011 |
|
| 1012 |
default:
|
| 1013 |
goto error;
|
| 1014 |
} |
| 1015 |
|
| 1016 |
if (!ack) {
|
| 1017 |
ldebug ("read %#x -> %#x\n", nport, retval);
|
| 1018 |
} |
| 1019 |
|
| 1020 |
return retval;
|
| 1021 |
|
| 1022 |
error:
|
| 1023 |
dolog ("warning: dsp_read %#x error\n", nport);
|
| 1024 |
return 0xff; |
| 1025 |
} |
| 1026 |
|
| 1027 |
static void reset_mixer (SB16State *s) |
| 1028 |
{
|
| 1029 |
int i;
|
| 1030 |
|
| 1031 |
memset (s->mixer_regs, 0xff, 0x7f); |
| 1032 |
memset (s->mixer_regs + 0x83, 0xff, sizeof (s->mixer_regs) - 0x83); |
| 1033 |
|
| 1034 |
s->mixer_regs[0x02] = 4; /* master volume 3bits */ |
| 1035 |
s->mixer_regs[0x06] = 4; /* MIDI volume 3bits */ |
| 1036 |
s->mixer_regs[0x08] = 0; /* CD volume 3bits */ |
| 1037 |
s->mixer_regs[0x0a] = 0; /* voice volume 2bits */ |
| 1038 |
|
| 1039 |
/* d5=input filt, d3=lowpass filt, d1,d2=input source */
|
| 1040 |
s->mixer_regs[0x0c] = 0; |
| 1041 |
|
| 1042 |
/* d5=output filt, d1=stereo switch */
|
| 1043 |
s->mixer_regs[0x0e] = 0; |
| 1044 |
|
| 1045 |
/* voice volume L d5,d7, R d1,d3 */
|
| 1046 |
s->mixer_regs[0x04] = (4 << 5) | (4 << 1); |
| 1047 |
/* master ... */
|
| 1048 |
s->mixer_regs[0x22] = (4 << 5) | (4 << 1); |
| 1049 |
/* MIDI ... */
|
| 1050 |
s->mixer_regs[0x26] = (4 << 5) | (4 << 1); |
| 1051 |
|
| 1052 |
for (i = 0x30; i < 0x48; i++) { |
| 1053 |
s->mixer_regs[i] = 0x20;
|
| 1054 |
} |
| 1055 |
} |
| 1056 |
|
| 1057 |
static IO_WRITE_PROTO (mixer_write_indexb)
|
| 1058 |
{
|
| 1059 |
SB16State *s = opaque; |
| 1060 |
(void) nport;
|
| 1061 |
s->mixer_nreg = val; |
| 1062 |
} |
| 1063 |
|
| 1064 |
static IO_WRITE_PROTO (mixer_write_datab)
|
| 1065 |
{
|
| 1066 |
SB16State *s = opaque; |
| 1067 |
|
| 1068 |
(void) nport;
|
| 1069 |
ldebug ("mixer_write [%#x] <- %#x\n", s->mixer_nreg, val);
|
| 1070 |
|
| 1071 |
switch (s->mixer_nreg) {
|
| 1072 |
case 0x00: |
| 1073 |
reset_mixer (s); |
| 1074 |
break;
|
| 1075 |
|
| 1076 |
case 0x80: |
| 1077 |
{
|
| 1078 |
int irq = irq_of_magic (val);
|
| 1079 |
ldebug ("setting irq to %d (val=%#x)\n", irq, val);
|
| 1080 |
if (irq > 0) { |
| 1081 |
s->irq = irq; |
| 1082 |
} |
| 1083 |
} |
| 1084 |
break;
|
| 1085 |
|
| 1086 |
case 0x81: |
| 1087 |
{
|
| 1088 |
int dma, hdma;
|
| 1089 |
|
| 1090 |
dma = ctz32 (val & 0xf);
|
| 1091 |
hdma = ctz32 (val & 0xf0);
|
| 1092 |
if (dma != s->dma || hdma != s->hdma) {
|
| 1093 |
dolog ( |
| 1094 |
"attempt to change DMA "
|
| 1095 |
"8bit %d(%d), 16bit %d(%d) (val=%#x)\n",
|
| 1096 |
dma, s->dma, hdma, s->hdma, val); |
| 1097 |
} |
| 1098 |
#if 0
|
| 1099 |
s->dma = dma;
|
| 1100 |
s->hdma = hdma;
|
| 1101 |
#endif
|
| 1102 |
} |
| 1103 |
break;
|
| 1104 |
|
| 1105 |
case 0x82: |
| 1106 |
dolog ("attempt to write into IRQ status register (val=%#x)\n",
|
| 1107 |
val); |
| 1108 |
return;
|
| 1109 |
|
| 1110 |
default:
|
| 1111 |
if (s->mixer_nreg >= 0x80) { |
| 1112 |
ldebug ("attempt to write mixer[%#x] <- %#x\n", s->mixer_nreg, val);
|
| 1113 |
} |
| 1114 |
break;
|
| 1115 |
} |
| 1116 |
|
| 1117 |
s->mixer_regs[s->mixer_nreg] = val; |
| 1118 |
} |
| 1119 |
|
| 1120 |
static IO_WRITE_PROTO (mixer_write_indexw)
|
| 1121 |
{
|
| 1122 |
mixer_write_indexb (opaque, nport, val & 0xff);
|
| 1123 |
mixer_write_datab (opaque, nport, (val >> 8) & 0xff); |
| 1124 |
} |
| 1125 |
|
| 1126 |
static IO_READ_PROTO (mixer_read)
|
| 1127 |
{
|
| 1128 |
SB16State *s = opaque; |
| 1129 |
|
| 1130 |
(void) nport;
|
| 1131 |
#ifndef DEBUG_SB16_MOST
|
| 1132 |
if (s->mixer_nreg != 0x82) { |
| 1133 |
ldebug ("mixer_read[%#x] -> %#x\n",
|
| 1134 |
s->mixer_nreg, s->mixer_regs[s->mixer_nreg]); |
| 1135 |
} |
| 1136 |
#else
|
| 1137 |
ldebug ("mixer_read[%#x] -> %#x\n",
|
| 1138 |
s->mixer_nreg, s->mixer_regs[s->mixer_nreg]); |
| 1139 |
#endif
|
| 1140 |
return s->mixer_regs[s->mixer_nreg];
|
| 1141 |
} |
| 1142 |
|
| 1143 |
static int write_audio (SB16State *s, int nchan, int dma_pos, |
| 1144 |
int dma_len, int len) |
| 1145 |
{
|
| 1146 |
int temp, net;
|
| 1147 |
uint8_t tmpbuf[4096];
|
| 1148 |
|
| 1149 |
temp = len; |
| 1150 |
net = 0;
|
| 1151 |
|
| 1152 |
while (temp) {
|
| 1153 |
int left = dma_len - dma_pos;
|
| 1154 |
int copied;
|
| 1155 |
size_t to_copy; |
| 1156 |
|
| 1157 |
to_copy = audio_MIN (temp, left); |
| 1158 |
if (to_copy > sizeof (tmpbuf)) { |
| 1159 |
to_copy = sizeof (tmpbuf);
|
| 1160 |
} |
| 1161 |
|
| 1162 |
copied = DMA_read_memory (nchan, tmpbuf, dma_pos, to_copy); |
| 1163 |
copied = AUD_write (s->voice, tmpbuf, copied); |
| 1164 |
|
| 1165 |
temp -= copied; |
| 1166 |
dma_pos = (dma_pos + copied) % dma_len; |
| 1167 |
net += copied; |
| 1168 |
|
| 1169 |
if (!copied) {
|
| 1170 |
break;
|
| 1171 |
} |
| 1172 |
} |
| 1173 |
|
| 1174 |
return net;
|
| 1175 |
} |
| 1176 |
|
| 1177 |
static int SB_read_DMA (void *opaque, int nchan, int dma_pos, int dma_len) |
| 1178 |
{
|
| 1179 |
SB16State *s = opaque; |
| 1180 |
int till, copy, written, free;
|
| 1181 |
|
| 1182 |
if (s->block_size <= 0) { |
| 1183 |
dolog ("invalid block size=%d nchan=%d dma_pos=%d dma_len=%d\n",
|
| 1184 |
s->block_size, nchan, dma_pos, dma_len); |
| 1185 |
return dma_pos;
|
| 1186 |
} |
| 1187 |
|
| 1188 |
if (s->left_till_irq < 0) { |
| 1189 |
s->left_till_irq = s->block_size; |
| 1190 |
} |
| 1191 |
|
| 1192 |
if (s->voice) {
|
| 1193 |
free = s->audio_free & ~s->align; |
| 1194 |
if ((free <= 0) || !dma_len) { |
| 1195 |
return dma_pos;
|
| 1196 |
} |
| 1197 |
} |
| 1198 |
else {
|
| 1199 |
free = dma_len; |
| 1200 |
} |
| 1201 |
|
| 1202 |
copy = free; |
| 1203 |
till = s->left_till_irq; |
| 1204 |
|
| 1205 |
#ifdef DEBUG_SB16_MOST
|
| 1206 |
dolog ("pos:%06d %d till:%d len:%d\n",
|
| 1207 |
dma_pos, free, till, dma_len); |
| 1208 |
#endif
|
| 1209 |
|
| 1210 |
if (till <= copy) {
|
| 1211 |
if (0 == s->dma_auto) { |
| 1212 |
copy = till; |
| 1213 |
} |
| 1214 |
} |
| 1215 |
|
| 1216 |
written = write_audio (s, nchan, dma_pos, dma_len, copy); |
| 1217 |
dma_pos = (dma_pos + written) % dma_len; |
| 1218 |
s->left_till_irq -= written; |
| 1219 |
|
| 1220 |
if (s->left_till_irq <= 0) { |
| 1221 |
s->mixer_regs[0x82] |= (nchan & 4) ? 2 : 1; |
| 1222 |
qemu_irq_raise (s->pic); |
| 1223 |
if (0 == s->dma_auto) { |
| 1224 |
control (s, 0);
|
| 1225 |
speaker (s, 0);
|
| 1226 |
} |
| 1227 |
} |
| 1228 |
|
| 1229 |
#ifdef DEBUG_SB16_MOST
|
| 1230 |
ldebug ("pos %5d free %5d size %5d till % 5d copy %5d written %5d size %5d\n",
|
| 1231 |
dma_pos, free, dma_len, s->left_till_irq, copy, written, |
| 1232 |
s->block_size); |
| 1233 |
#endif
|
| 1234 |
|
| 1235 |
while (s->left_till_irq <= 0) { |
| 1236 |
s->left_till_irq = s->block_size + s->left_till_irq; |
| 1237 |
} |
| 1238 |
|
| 1239 |
return dma_pos;
|
| 1240 |
} |
| 1241 |
|
| 1242 |
static void SB_audio_callback (void *opaque, int free) |
| 1243 |
{
|
| 1244 |
SB16State *s = opaque; |
| 1245 |
s->audio_free = free; |
| 1246 |
} |
| 1247 |
|
| 1248 |
static int sb16_post_load (void *opaque, int version_id) |
| 1249 |
{
|
| 1250 |
SB16State *s = opaque; |
| 1251 |
|
| 1252 |
if (s->voice) {
|
| 1253 |
AUD_close_out (&s->card, s->voice); |
| 1254 |
s->voice = NULL;
|
| 1255 |
} |
| 1256 |
|
| 1257 |
if (s->dma_running) {
|
| 1258 |
if (s->freq) {
|
| 1259 |
struct audsettings as;
|
| 1260 |
|
| 1261 |
s->audio_free = 0;
|
| 1262 |
|
| 1263 |
as.freq = s->freq; |
| 1264 |
as.nchannels = 1 << s->fmt_stereo;
|
| 1265 |
as.fmt = s->fmt; |
| 1266 |
as.endianness = 0;
|
| 1267 |
|
| 1268 |
s->voice = AUD_open_out ( |
| 1269 |
&s->card, |
| 1270 |
s->voice, |
| 1271 |
"sb16",
|
| 1272 |
s, |
| 1273 |
SB_audio_callback, |
| 1274 |
&as |
| 1275 |
); |
| 1276 |
} |
| 1277 |
|
| 1278 |
control (s, 1);
|
| 1279 |
speaker (s, s->speaker); |
| 1280 |
} |
| 1281 |
return 0; |
| 1282 |
} |
| 1283 |
|
| 1284 |
static const VMStateDescription vmstate_sb16 = { |
| 1285 |
.name = "sb16",
|
| 1286 |
.version_id = 1,
|
| 1287 |
.minimum_version_id = 1,
|
| 1288 |
.minimum_version_id_old = 1,
|
| 1289 |
.post_load = sb16_post_load, |
| 1290 |
.fields = (VMStateField []) {
|
| 1291 |
VMSTATE_UINT32 (irq, SB16State), |
| 1292 |
VMSTATE_UINT32 (dma, SB16State), |
| 1293 |
VMSTATE_UINT32 (hdma, SB16State), |
| 1294 |
VMSTATE_UINT32 (port, SB16State), |
| 1295 |
VMSTATE_UINT32 (ver, SB16State), |
| 1296 |
VMSTATE_INT32 (in_index, SB16State), |
| 1297 |
VMSTATE_INT32 (out_data_len, SB16State), |
| 1298 |
VMSTATE_INT32 (fmt_stereo, SB16State), |
| 1299 |
VMSTATE_INT32 (fmt_signed, SB16State), |
| 1300 |
VMSTATE_INT32 (fmt_bits, SB16State), |
| 1301 |
VMSTATE_UINT32 (fmt, SB16State), |
| 1302 |
VMSTATE_INT32 (dma_auto, SB16State), |
| 1303 |
VMSTATE_INT32 (block_size, SB16State), |
| 1304 |
VMSTATE_INT32 (fifo, SB16State), |
| 1305 |
VMSTATE_INT32 (freq, SB16State), |
| 1306 |
VMSTATE_INT32 (time_const, SB16State), |
| 1307 |
VMSTATE_INT32 (speaker, SB16State), |
| 1308 |
VMSTATE_INT32 (needed_bytes, SB16State), |
| 1309 |
VMSTATE_INT32 (cmd, SB16State), |
| 1310 |
VMSTATE_INT32 (use_hdma, SB16State), |
| 1311 |
VMSTATE_INT32 (highspeed, SB16State), |
| 1312 |
VMSTATE_INT32 (can_write, SB16State), |
| 1313 |
VMSTATE_INT32 (v2x6, SB16State), |
| 1314 |
|
| 1315 |
VMSTATE_UINT8 (csp_param, SB16State), |
| 1316 |
VMSTATE_UINT8 (csp_value, SB16State), |
| 1317 |
VMSTATE_UINT8 (csp_mode, SB16State), |
| 1318 |
VMSTATE_UINT8 (csp_param, SB16State), |
| 1319 |
VMSTATE_BUFFER (csp_regs, SB16State), |
| 1320 |
VMSTATE_UINT8 (csp_index, SB16State), |
| 1321 |
VMSTATE_BUFFER (csp_reg83, SB16State), |
| 1322 |
VMSTATE_INT32 (csp_reg83r, SB16State), |
| 1323 |
VMSTATE_INT32 (csp_reg83w, SB16State), |
| 1324 |
|
| 1325 |
VMSTATE_BUFFER (in2_data, SB16State), |
| 1326 |
VMSTATE_BUFFER (out_data, SB16State), |
| 1327 |
VMSTATE_UINT8 (test_reg, SB16State), |
| 1328 |
VMSTATE_UINT8 (last_read_byte, SB16State), |
| 1329 |
|
| 1330 |
VMSTATE_INT32 (nzero, SB16State), |
| 1331 |
VMSTATE_INT32 (left_till_irq, SB16State), |
| 1332 |
VMSTATE_INT32 (dma_running, SB16State), |
| 1333 |
VMSTATE_INT32 (bytes_per_second, SB16State), |
| 1334 |
VMSTATE_INT32 (align, SB16State), |
| 1335 |
|
| 1336 |
VMSTATE_INT32 (mixer_nreg, SB16State), |
| 1337 |
VMSTATE_BUFFER (mixer_regs, SB16State), |
| 1338 |
|
| 1339 |
VMSTATE_END_OF_LIST () |
| 1340 |
} |
| 1341 |
}; |
| 1342 |
|
| 1343 |
static const MemoryRegionPortio sb16_ioport_list[] = { |
| 1344 |
{ 4, 1, 1, .write = mixer_write_indexb },
|
| 1345 |
{ 4, 1, 2, .write = mixer_write_indexw },
|
| 1346 |
{ 5, 1, 1, .read = mixer_read, .write = mixer_write_datab },
|
| 1347 |
{ 6, 1, 1, .read = dsp_read, .write = dsp_write },
|
| 1348 |
{ 10, 1, 1, .read = dsp_read },
|
| 1349 |
{ 12, 1, 1, .write = dsp_write },
|
| 1350 |
{ 12, 4, 1, .read = dsp_read },
|
| 1351 |
PORTIO_END_OF_LIST (), |
| 1352 |
}; |
| 1353 |
|
| 1354 |
|
| 1355 |
static int sb16_initfn (ISADevice *dev) |
| 1356 |
{
|
| 1357 |
SB16State *s; |
| 1358 |
|
| 1359 |
s = DO_UPCAST (SB16State, dev, dev); |
| 1360 |
|
| 1361 |
s->cmd = -1;
|
| 1362 |
isa_init_irq (dev, &s->pic, s->irq); |
| 1363 |
|
| 1364 |
s->mixer_regs[0x80] = magic_of_irq (s->irq);
|
| 1365 |
s->mixer_regs[0x81] = (1 << s->dma) | (1 << s->hdma); |
| 1366 |
s->mixer_regs[0x82] = 2 << 5; |
| 1367 |
|
| 1368 |
s->csp_regs[5] = 1; |
| 1369 |
s->csp_regs[9] = 0xf8; |
| 1370 |
|
| 1371 |
reset_mixer (s); |
| 1372 |
s->aux_ts = qemu_new_timer_ns (vm_clock, aux_timer, s); |
| 1373 |
if (!s->aux_ts) {
|
| 1374 |
dolog ("warning: Could not create auxiliary timer\n");
|
| 1375 |
} |
| 1376 |
|
| 1377 |
isa_register_portio_list (dev, s->port, sb16_ioport_list, s, "sb16");
|
| 1378 |
|
| 1379 |
DMA_register_channel (s->hdma, SB_read_DMA, s); |
| 1380 |
DMA_register_channel (s->dma, SB_read_DMA, s); |
| 1381 |
s->can_write = 1;
|
| 1382 |
|
| 1383 |
AUD_register_card ("sb16", &s->card);
|
| 1384 |
return 0; |
| 1385 |
} |
| 1386 |
|
| 1387 |
int SB16_init (ISABus *bus)
|
| 1388 |
{
|
| 1389 |
isa_create_simple (bus, "sb16");
|
| 1390 |
return 0; |
| 1391 |
} |
| 1392 |
|
| 1393 |
static Property sb16_properties[] = {
|
| 1394 |
DEFINE_PROP_HEX32 ("version", SB16State, ver, 0x0405), /* 4.5 */ |
| 1395 |
DEFINE_PROP_HEX32 ("iobase", SB16State, port, 0x220), |
| 1396 |
DEFINE_PROP_UINT32 ("irq", SB16State, irq, 5), |
| 1397 |
DEFINE_PROP_UINT32 ("dma", SB16State, dma, 1), |
| 1398 |
DEFINE_PROP_UINT32 ("dma16", SB16State, hdma, 5), |
| 1399 |
DEFINE_PROP_END_OF_LIST (), |
| 1400 |
}; |
| 1401 |
|
| 1402 |
static void sb16_class_initfn (ObjectClass *klass, void *data) |
| 1403 |
{
|
| 1404 |
DeviceClass *dc = DEVICE_CLASS (klass); |
| 1405 |
ISADeviceClass *ic = ISA_DEVICE_CLASS (klass); |
| 1406 |
ic->init = sb16_initfn; |
| 1407 |
dc->desc = "Creative Sound Blaster 16";
|
| 1408 |
dc->vmsd = &vmstate_sb16; |
| 1409 |
dc->props = sb16_properties; |
| 1410 |
} |
| 1411 |
|
| 1412 |
static TypeInfo sb16_info = {
|
| 1413 |
.name = "sb16",
|
| 1414 |
.parent = TYPE_ISA_DEVICE, |
| 1415 |
.instance_size = sizeof (SB16State),
|
| 1416 |
.class_init = sb16_class_initfn, |
| 1417 |
}; |
| 1418 |
|
| 1419 |
static void sb16_register_types (void) |
| 1420 |
{
|
| 1421 |
type_register_static (&sb16_info); |
| 1422 |
} |
| 1423 |
|
| 1424 |
type_init (sb16_register_types) |