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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" |
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#include "qemu-timer.h" |
29 |
|
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#define dolog(...) AUD_log ("sb16", __VA_ARGS__) |
31 |
|
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/* #define DEBUG */
|
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/* #define DEBUG_SB16_MOST */
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|
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#ifdef DEBUG
|
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#define ldebug(...) dolog (__VA_ARGS__)
|
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#else
|
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#define ldebug(...)
|
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#endif
|
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|
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#define IO_READ_PROTO(name) \
|
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uint32_t name (void *opaque, uint32_t nport)
|
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#define IO_WRITE_PROTO(name) \
|
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void name (void *opaque, uint32_t nport, uint32_t val) |
45 |
|
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static const char e3[] = "COPYRIGHT (C) CREATIVE TECHNOLOGY LTD, 1992."; |
47 |
|
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static struct { |
49 |
int ver_lo;
|
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int ver_hi;
|
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int irq;
|
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int dma;
|
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int hdma;
|
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int port;
|
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} conf = {5, 4, 5, 1, 5, 0x220}; |
56 |
|
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typedef struct SB16State { |
58 |
QEMUSoundCard card; |
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qemu_irq *pic; |
60 |
int irq;
|
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int dma;
|
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int hdma;
|
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int port;
|
64 |
int ver;
|
65 |
|
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int in_index;
|
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int out_data_len;
|
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int fmt_stereo;
|
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int fmt_signed;
|
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int fmt_bits;
|
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audfmt_e fmt; |
72 |
int dma_auto;
|
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int block_size;
|
74 |
int fifo;
|
75 |
int freq;
|
76 |
int time_const;
|
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int speaker;
|
78 |
int needed_bytes;
|
79 |
int cmd;
|
80 |
int use_hdma;
|
81 |
int highspeed;
|
82 |
int can_write;
|
83 |
|
84 |
int v2x6;
|
85 |
|
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uint8_t csp_param; |
87 |
uint8_t csp_value; |
88 |
uint8_t csp_mode; |
89 |
uint8_t csp_regs[256];
|
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uint8_t csp_index; |
91 |
uint8_t csp_reg83[4];
|
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int csp_reg83r;
|
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int csp_reg83w;
|
94 |
|
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uint8_t in2_data[10];
|
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uint8_t out_data[50];
|
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uint8_t test_reg; |
98 |
uint8_t last_read_byte; |
99 |
int nzero;
|
100 |
|
101 |
int left_till_irq;
|
102 |
|
103 |
int dma_running;
|
104 |
int bytes_per_second;
|
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int align;
|
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int audio_free;
|
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SWVoiceOut *voice; |
108 |
|
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QEMUTimer *aux_ts; |
110 |
/* mixer state */
|
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int mixer_nreg;
|
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uint8_t mixer_regs[256];
|
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} SB16State; |
114 |
|
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static void SB_audio_callback (void *opaque, int free); |
116 |
|
117 |
static int magic_of_irq (int irq) |
118 |
{ |
119 |
switch (irq) {
|
120 |
case 5: |
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return 2; |
122 |
case 7: |
123 |
return 4; |
124 |
case 9: |
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return 1; |
126 |
case 10: |
127 |
return 8; |
128 |
default:
|
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dolog ("bad irq %d\n", irq);
|
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return 2; |
131 |
} |
132 |
} |
133 |
|
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static int irq_of_magic (int magic) |
135 |
{ |
136 |
switch (magic) {
|
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case 1: |
138 |
return 9; |
139 |
case 2: |
140 |
return 5; |
141 |
case 4: |
142 |
return 7; |
143 |
case 8: |
144 |
return 10; |
145 |
default:
|
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dolog ("bad irq magic %d\n", magic);
|
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return -1; |
148 |
} |
149 |
} |
150 |
|
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#if 0
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static void log_dsp (SB16State *dsp)
|
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{
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ldebug ("%s:%s:%d:%s:dmasize=%d:freq=%d:const=%d:speaker=%d\n",
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dsp->fmt_stereo ? "Stereo" : "Mono",
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dsp->fmt_signed ? "Signed" : "Unsigned",
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157 |
dsp->fmt_bits,
|
158 |
dsp->dma_auto ? "Auto" : "Single",
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159 |
dsp->block_size,
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160 |
dsp->freq,
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161 |
dsp->time_const,
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dsp->speaker);
|
163 |
}
|
164 |
#endif
|
165 |
|
166 |
static void speaker (SB16State *s, int on) |
167 |
{ |
168 |
s->speaker = on; |
169 |
/* AUD_enable (s->voice, on); */
|
170 |
} |
171 |
|
172 |
static void control (SB16State *s, int hold) |
173 |
{ |
174 |
int dma = s->use_hdma ? s->hdma : s->dma;
|
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s->dma_running = hold; |
176 |
|
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ldebug ("hold %d high %d dma %d\n", hold, s->use_hdma, dma);
|
178 |
|
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if (hold) {
|
180 |
DMA_hold_DREQ (dma); |
181 |
AUD_set_active_out (s->voice, 1);
|
182 |
} |
183 |
else {
|
184 |
DMA_release_DREQ (dma); |
185 |
AUD_set_active_out (s->voice, 0);
|
186 |
} |
187 |
} |
188 |
|
189 |
static void aux_timer (void *opaque) |
190 |
{ |
191 |
SB16State *s = opaque; |
192 |
s->can_write = 1;
|
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qemu_irq_raise (s->pic[s->irq]); |
194 |
} |
195 |
|
196 |
#define DMA8_AUTO 1 |
197 |
#define DMA8_HIGH 2 |
198 |
|
199 |
static void continue_dma8 (SB16State *s) |
200 |
{ |
201 |
if (s->freq > 0) { |
202 |
struct audsettings as;
|
203 |
|
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s->audio_free = 0;
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205 |
|
206 |
as.freq = s->freq; |
207 |
as.nchannels = 1 << s->fmt_stereo;
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as.fmt = s->fmt; |
209 |
as.endianness = 0;
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210 |
|
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s->voice = AUD_open_out ( |
212 |
&s->card, |
213 |
s->voice, |
214 |
"sb16",
|
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s, |
216 |
SB_audio_callback, |
217 |
&as |
218 |
); |
219 |
} |
220 |
|
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control (s, 1);
|
222 |
} |
223 |
|
224 |
static void dma_cmd8 (SB16State *s, int mask, int dma_len) |
225 |
{ |
226 |
s->fmt = AUD_FMT_U8; |
227 |
s->use_hdma = 0;
|
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s->fmt_bits = 8;
|
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s->fmt_signed = 0;
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s->fmt_stereo = (s->mixer_regs[0x0e] & 2) != 0; |
231 |
if (-1 == s->time_const) { |
232 |
if (s->freq <= 0) |
233 |
s->freq = 11025;
|
234 |
} |
235 |
else {
|
236 |
int tmp = (256 - s->time_const); |
237 |
s->freq = (1000000 + (tmp / 2)) / tmp; |
238 |
} |
239 |
|
240 |
if (dma_len != -1) { |
241 |
s->block_size = dma_len << s->fmt_stereo; |
242 |
} |
243 |
else {
|
244 |
/* This is apparently the only way to make both Act1/PL
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245 |
and SecondReality/FC work
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246 |
|
247 |
Act1 sets block size via command 0x48 and it's an odd number
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248 |
SR does the same with even number
|
249 |
Both use stereo, and Creatives own documentation states that
|
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0x48 sets block size in bytes less one.. go figure */
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s->block_size &= ~s->fmt_stereo; |
252 |
} |
253 |
|
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s->freq >>= s->fmt_stereo; |
255 |
s->left_till_irq = s->block_size; |
256 |
s->bytes_per_second = (s->freq << s->fmt_stereo); |
257 |
/* s->highspeed = (mask & DMA8_HIGH) != 0; */
|
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s->dma_auto = (mask & DMA8_AUTO) != 0;
|
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s->align = (1 << s->fmt_stereo) - 1; |
260 |
|
261 |
if (s->block_size & s->align) {
|
262 |
dolog ("warning: misaligned block size %d, alignment %d\n",
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s->block_size, s->align + 1);
|
264 |
} |
265 |
|
266 |
ldebug ("freq %d, stereo %d, sign %d, bits %d, "
|
267 |
"dma %d, auto %d, fifo %d, high %d\n",
|
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s->freq, s->fmt_stereo, s->fmt_signed, s->fmt_bits, |
269 |
s->block_size, s->dma_auto, s->fifo, s->highspeed); |
270 |
|
271 |
continue_dma8 (s); |
272 |
speaker (s, 1);
|
273 |
} |
274 |
|
275 |
static void dma_cmd (SB16State *s, uint8_t cmd, uint8_t d0, int dma_len) |
276 |
{ |
277 |
s->use_hdma = cmd < 0xc0;
|
278 |
s->fifo = (cmd >> 1) & 1; |
279 |
s->dma_auto = (cmd >> 2) & 1; |
280 |
s->fmt_signed = (d0 >> 4) & 1; |
281 |
s->fmt_stereo = (d0 >> 5) & 1; |
282 |
|
283 |
switch (cmd >> 4) { |
284 |
case 11: |
285 |
s->fmt_bits = 16;
|
286 |
break;
|
287 |
|
288 |
case 12: |
289 |
s->fmt_bits = 8;
|
290 |
break;
|
291 |
} |
292 |
|
293 |
if (-1 != s->time_const) { |
294 |
#if 1 |
295 |
int tmp = 256 - s->time_const; |
296 |
s->freq = (1000000 + (tmp / 2)) / tmp; |
297 |
#else
|
298 |
/* s->freq = 1000000 / ((255 - s->time_const) << s->fmt_stereo); */
|
299 |
s->freq = 1000000 / ((255 - s->time_const)); |
300 |
#endif
|
301 |
s->time_const = -1;
|
302 |
} |
303 |
|
304 |
s->block_size = dma_len + 1;
|
305 |
s->block_size <<= (s->fmt_bits == 16);
|
306 |
if (!s->dma_auto) {
|
307 |
/* It is clear that for DOOM and auto-init this value
|
308 |
shouldn't take stereo into account, while Miles Sound Systems
|
309 |
setsound.exe with single transfer mode wouldn't work without it
|
310 |
wonders of SB16 yet again */
|
311 |
s->block_size <<= s->fmt_stereo; |
312 |
} |
313 |
|
314 |
ldebug ("freq %d, stereo %d, sign %d, bits %d, "
|
315 |
"dma %d, auto %d, fifo %d, high %d\n",
|
316 |
s->freq, s->fmt_stereo, s->fmt_signed, s->fmt_bits, |
317 |
s->block_size, s->dma_auto, s->fifo, s->highspeed); |
318 |
|
319 |
if (16 == s->fmt_bits) { |
320 |
if (s->fmt_signed) {
|
321 |
s->fmt = AUD_FMT_S16; |
322 |
} |
323 |
else {
|
324 |
s->fmt = AUD_FMT_U16; |
325 |
} |
326 |
} |
327 |
else {
|
328 |
if (s->fmt_signed) {
|
329 |
s->fmt = AUD_FMT_S8; |
330 |
} |
331 |
else {
|
332 |
s->fmt = AUD_FMT_U8; |
333 |
} |
334 |
} |
335 |
|
336 |
s->left_till_irq = s->block_size; |
337 |
|
338 |
s->bytes_per_second = (s->freq << s->fmt_stereo) << (s->fmt_bits == 16);
|
339 |
s->highspeed = 0;
|
340 |
s->align = (1 << (s->fmt_stereo + (s->fmt_bits == 16))) - 1; |
341 |
if (s->block_size & s->align) {
|
342 |
dolog ("warning: misaligned block size %d, alignment %d\n",
|
343 |
s->block_size, s->align + 1);
|
344 |
} |
345 |
|
346 |
if (s->freq) {
|
347 |
struct audsettings as;
|
348 |
|
349 |
s->audio_free = 0;
|
350 |
|
351 |
as.freq = s->freq; |
352 |
as.nchannels = 1 << s->fmt_stereo;
|
353 |
as.fmt = s->fmt; |
354 |
as.endianness = 0;
|
355 |
|
356 |
s->voice = AUD_open_out ( |
357 |
&s->card, |
358 |
s->voice, |
359 |
"sb16",
|
360 |
s, |
361 |
SB_audio_callback, |
362 |
&as |
363 |
); |
364 |
} |
365 |
|
366 |
control (s, 1);
|
367 |
speaker (s, 1);
|
368 |
} |
369 |
|
370 |
static inline void dsp_out_data (SB16State *s, uint8_t val) |
371 |
{ |
372 |
ldebug ("outdata %#x\n", val);
|
373 |
if ((size_t) s->out_data_len < sizeof (s->out_data)) { |
374 |
s->out_data[s->out_data_len++] = val; |
375 |
} |
376 |
} |
377 |
|
378 |
static inline uint8_t dsp_get_data (SB16State *s) |
379 |
{ |
380 |
if (s->in_index) {
|
381 |
return s->in2_data[--s->in_index];
|
382 |
} |
383 |
else {
|
384 |
dolog ("buffer underflow\n");
|
385 |
return 0; |
386 |
} |
387 |
} |
388 |
|
389 |
static void command (SB16State *s, uint8_t cmd) |
390 |
{ |
391 |
ldebug ("command %#x\n", cmd);
|
392 |
|
393 |
if (cmd > 0xaf && cmd < 0xd0) { |
394 |
if (cmd & 8) { |
395 |
dolog ("ADC not yet supported (command %#x)\n", cmd);
|
396 |
} |
397 |
|
398 |
switch (cmd >> 4) { |
399 |
case 11: |
400 |
case 12: |
401 |
break;
|
402 |
default:
|
403 |
dolog ("%#x wrong bits\n", cmd);
|
404 |
} |
405 |
s->needed_bytes = 3;
|
406 |
} |
407 |
else {
|
408 |
s->needed_bytes = 0;
|
409 |
|
410 |
switch (cmd) {
|
411 |
case 0x03: |
412 |
dsp_out_data (s, 0x10); /* s->csp_param); */ |
413 |
goto warn;
|
414 |
|
415 |
case 0x04: |
416 |
s->needed_bytes = 1;
|
417 |
goto warn;
|
418 |
|
419 |
case 0x05: |
420 |
s->needed_bytes = 2;
|
421 |
goto warn;
|
422 |
|
423 |
case 0x08: |
424 |
/* __asm__ ("int3"); */
|
425 |
goto warn;
|
426 |
|
427 |
case 0x0e: |
428 |
s->needed_bytes = 2;
|
429 |
goto warn;
|
430 |
|
431 |
case 0x09: |
432 |
dsp_out_data (s, 0xf8);
|
433 |
goto warn;
|
434 |
|
435 |
case 0x0f: |
436 |
s->needed_bytes = 1;
|
437 |
goto warn;
|
438 |
|
439 |
case 0x10: |
440 |
s->needed_bytes = 1;
|
441 |
goto warn;
|
442 |
|
443 |
case 0x14: |
444 |
s->needed_bytes = 2;
|
445 |
s->block_size = 0;
|
446 |
break;
|
447 |
|
448 |
case 0x1c: /* Auto-Initialize DMA DAC, 8-bit */ |
449 |
dma_cmd8 (s, DMA8_AUTO, -1);
|
450 |
break;
|
451 |
|
452 |
case 0x20: /* Direct ADC, Juice/PL */ |
453 |
dsp_out_data (s, 0xff);
|
454 |
goto warn;
|
455 |
|
456 |
case 0x35: |
457 |
dolog ("0x35 - MIDI command not implemented\n");
|
458 |
break;
|
459 |
|
460 |
case 0x40: |
461 |
s->freq = -1;
|
462 |
s->time_const = -1;
|
463 |
s->needed_bytes = 1;
|
464 |
break;
|
465 |
|
466 |
case 0x41: |
467 |
s->freq = -1;
|
468 |
s->time_const = -1;
|
469 |
s->needed_bytes = 2;
|
470 |
break;
|
471 |
|
472 |
case 0x42: |
473 |
s->freq = -1;
|
474 |
s->time_const = -1;
|
475 |
s->needed_bytes = 2;
|
476 |
goto warn;
|
477 |
|
478 |
case 0x45: |
479 |
dsp_out_data (s, 0xaa);
|
480 |
goto warn;
|
481 |
|
482 |
case 0x47: /* Continue Auto-Initialize DMA 16bit */ |
483 |
break;
|
484 |
|
485 |
case 0x48: |
486 |
s->needed_bytes = 2;
|
487 |
break;
|
488 |
|
489 |
case 0x74: |
490 |
s->needed_bytes = 2; /* DMA DAC, 4-bit ADPCM */ |
491 |
dolog ("0x75 - DMA DAC, 4-bit ADPCM not implemented\n");
|
492 |
break;
|
493 |
|
494 |
case 0x75: /* DMA DAC, 4-bit ADPCM Reference */ |
495 |
s->needed_bytes = 2;
|
496 |
dolog ("0x74 - DMA DAC, 4-bit ADPCM Reference not implemented\n");
|
497 |
break;
|
498 |
|
499 |
case 0x76: /* DMA DAC, 2.6-bit ADPCM */ |
500 |
s->needed_bytes = 2;
|
501 |
dolog ("0x74 - DMA DAC, 2.6-bit ADPCM not implemented\n");
|
502 |
break;
|
503 |
|
504 |
case 0x77: /* DMA DAC, 2.6-bit ADPCM Reference */ |
505 |
s->needed_bytes = 2;
|
506 |
dolog ("0x74 - DMA DAC, 2.6-bit ADPCM Reference not implemented\n");
|
507 |
break;
|
508 |
|
509 |
case 0x7d: |
510 |
dolog ("0x7d - Autio-Initialize DMA DAC, 4-bit ADPCM Reference\n");
|
511 |
dolog ("not implemented\n");
|
512 |
break;
|
513 |
|
514 |
case 0x7f: |
515 |
dolog ( |
516 |
"0x7d - Autio-Initialize DMA DAC, 2.6-bit ADPCM Reference\n"
|
517 |
); |
518 |
dolog ("not implemented\n");
|
519 |
break;
|
520 |
|
521 |
case 0x80: |
522 |
s->needed_bytes = 2;
|
523 |
break;
|
524 |
|
525 |
case 0x90: |
526 |
case 0x91: |
527 |
dma_cmd8 (s, ((cmd & 1) == 0) | DMA8_HIGH, -1); |
528 |
break;
|
529 |
|
530 |
case 0xd0: /* halt DMA operation. 8bit */ |
531 |
control (s, 0);
|
532 |
break;
|
533 |
|
534 |
case 0xd1: /* speaker on */ |
535 |
speaker (s, 1);
|
536 |
break;
|
537 |
|
538 |
case 0xd3: /* speaker off */ |
539 |
speaker (s, 0);
|
540 |
break;
|
541 |
|
542 |
case 0xd4: /* continue DMA operation. 8bit */ |
543 |
/* KQ6 (or maybe Sierras audblst.drv in general) resets
|
544 |
the frequency between halt/continue */
|
545 |
continue_dma8 (s); |
546 |
break;
|
547 |
|
548 |
case 0xd5: /* halt DMA operation. 16bit */ |
549 |
control (s, 0);
|
550 |
break;
|
551 |
|
552 |
case 0xd6: /* continue DMA operation. 16bit */ |
553 |
control (s, 1);
|
554 |
break;
|
555 |
|
556 |
case 0xd9: /* exit auto-init DMA after this block. 16bit */ |
557 |
s->dma_auto = 0;
|
558 |
break;
|
559 |
|
560 |
case 0xda: /* exit auto-init DMA after this block. 8bit */ |
561 |
s->dma_auto = 0;
|
562 |
break;
|
563 |
|
564 |
case 0xe0: /* DSP identification */ |
565 |
s->needed_bytes = 1;
|
566 |
break;
|
567 |
|
568 |
case 0xe1: |
569 |
dsp_out_data (s, s->ver & 0xff);
|
570 |
dsp_out_data (s, s->ver >> 8);
|
571 |
break;
|
572 |
|
573 |
case 0xe2: |
574 |
s->needed_bytes = 1;
|
575 |
goto warn;
|
576 |
|
577 |
case 0xe3: |
578 |
{ |
579 |
int i;
|
580 |
for (i = sizeof (e3) - 1; i >= 0; --i) |
581 |
dsp_out_data (s, e3[i]); |
582 |
} |
583 |
break;
|
584 |
|
585 |
case 0xe4: /* write test reg */ |
586 |
s->needed_bytes = 1;
|
587 |
break;
|
588 |
|
589 |
case 0xe7: |
590 |
dolog ("Attempt to probe for ESS (0xe7)?\n");
|
591 |
break;
|
592 |
|
593 |
case 0xe8: /* read test reg */ |
594 |
dsp_out_data (s, s->test_reg); |
595 |
break;
|
596 |
|
597 |
case 0xf2: |
598 |
case 0xf3: |
599 |
dsp_out_data (s, 0xaa);
|
600 |
s->mixer_regs[0x82] |= (cmd == 0xf2) ? 1 : 2; |
601 |
qemu_irq_raise (s->pic[s->irq]); |
602 |
break;
|
603 |
|
604 |
case 0xf9: |
605 |
s->needed_bytes = 1;
|
606 |
goto warn;
|
607 |
|
608 |
case 0xfa: |
609 |
dsp_out_data (s, 0);
|
610 |
goto warn;
|
611 |
|
612 |
case 0xfc: /* FIXME */ |
613 |
dsp_out_data (s, 0);
|
614 |
goto warn;
|
615 |
|
616 |
default:
|
617 |
dolog ("Unrecognized command %#x\n", cmd);
|
618 |
break;
|
619 |
} |
620 |
} |
621 |
|
622 |
if (!s->needed_bytes) {
|
623 |
ldebug ("\n");
|
624 |
} |
625 |
|
626 |
exit:
|
627 |
if (!s->needed_bytes) {
|
628 |
s->cmd = -1;
|
629 |
} |
630 |
else {
|
631 |
s->cmd = cmd; |
632 |
} |
633 |
return;
|
634 |
|
635 |
warn:
|
636 |
dolog ("warning: command %#x,%d is not truly understood yet\n",
|
637 |
cmd, s->needed_bytes); |
638 |
goto exit;
|
639 |
|
640 |
} |
641 |
|
642 |
static uint16_t dsp_get_lohi (SB16State *s)
|
643 |
{ |
644 |
uint8_t hi = dsp_get_data (s); |
645 |
uint8_t lo = dsp_get_data (s); |
646 |
return (hi << 8) | lo; |
647 |
} |
648 |
|
649 |
static uint16_t dsp_get_hilo (SB16State *s)
|
650 |
{ |
651 |
uint8_t lo = dsp_get_data (s); |
652 |
uint8_t hi = dsp_get_data (s); |
653 |
return (hi << 8) | lo; |
654 |
} |
655 |
|
656 |
static void complete (SB16State *s) |
657 |
{ |
658 |
int d0, d1, d2;
|
659 |
ldebug ("complete command %#x, in_index %d, needed_bytes %d\n",
|
660 |
s->cmd, s->in_index, s->needed_bytes); |
661 |
|
662 |
if (s->cmd > 0xaf && s->cmd < 0xd0) { |
663 |
d2 = dsp_get_data (s); |
664 |
d1 = dsp_get_data (s); |
665 |
d0 = dsp_get_data (s); |
666 |
|
667 |
if (s->cmd & 8) { |
668 |
dolog ("ADC params cmd = %#x d0 = %d, d1 = %d, d2 = %d\n",
|
669 |
s->cmd, d0, d1, d2); |
670 |
} |
671 |
else {
|
672 |
ldebug ("cmd = %#x d0 = %d, d1 = %d, d2 = %d\n",
|
673 |
s->cmd, d0, d1, d2); |
674 |
dma_cmd (s, s->cmd, d0, d1 + (d2 << 8));
|
675 |
} |
676 |
} |
677 |
else {
|
678 |
switch (s->cmd) {
|
679 |
case 0x04: |
680 |
s->csp_mode = dsp_get_data (s); |
681 |
s->csp_reg83r = 0;
|
682 |
s->csp_reg83w = 0;
|
683 |
ldebug ("CSP command 0x04: mode=%#x\n", s->csp_mode);
|
684 |
break;
|
685 |
|
686 |
case 0x05: |
687 |
s->csp_param = dsp_get_data (s); |
688 |
s->csp_value = dsp_get_data (s); |
689 |
ldebug ("CSP command 0x05: param=%#x value=%#x\n",
|
690 |
s->csp_param, |
691 |
s->csp_value); |
692 |
break;
|
693 |
|
694 |
case 0x0e: |
695 |
d0 = dsp_get_data (s); |
696 |
d1 = dsp_get_data (s); |
697 |
ldebug ("write CSP register %d <- %#x\n", d1, d0);
|
698 |
if (d1 == 0x83) { |
699 |
ldebug ("0x83[%d] <- %#x\n", s->csp_reg83r, d0);
|
700 |
s->csp_reg83[s->csp_reg83r % 4] = d0;
|
701 |
s->csp_reg83r += 1;
|
702 |
} |
703 |
else {
|
704 |
s->csp_regs[d1] = d0; |
705 |
} |
706 |
break;
|
707 |
|
708 |
case 0x0f: |
709 |
d0 = dsp_get_data (s); |
710 |
ldebug ("read CSP register %#x -> %#x, mode=%#x\n",
|
711 |
d0, s->csp_regs[d0], s->csp_mode); |
712 |
if (d0 == 0x83) { |
713 |
ldebug ("0x83[%d] -> %#x\n",
|
714 |
s->csp_reg83w, |
715 |
s->csp_reg83[s->csp_reg83w % 4]);
|
716 |
dsp_out_data (s, s->csp_reg83[s->csp_reg83w % 4]);
|
717 |
s->csp_reg83w += 1;
|
718 |
} |
719 |
else {
|
720 |
dsp_out_data (s, s->csp_regs[d0]); |
721 |
} |
722 |
break;
|
723 |
|
724 |
case 0x10: |
725 |
d0 = dsp_get_data (s); |
726 |
dolog ("cmd 0x10 d0=%#x\n", d0);
|
727 |
break;
|
728 |
|
729 |
case 0x14: |
730 |
dma_cmd8 (s, 0, dsp_get_lohi (s) + 1); |
731 |
break;
|
732 |
|
733 |
case 0x40: |
734 |
s->time_const = dsp_get_data (s); |
735 |
ldebug ("set time const %d\n", s->time_const);
|
736 |
break;
|
737 |
|
738 |
case 0x42: /* FT2 sets output freq with this, go figure */ |
739 |
#if 0
|
740 |
dolog ("cmd 0x42 might not do what it think it should\n");
|
741 |
#endif
|
742 |
case 0x41: |
743 |
s->freq = dsp_get_hilo (s); |
744 |
ldebug ("set freq %d\n", s->freq);
|
745 |
break;
|
746 |
|
747 |
case 0x48: |
748 |
s->block_size = dsp_get_lohi (s) + 1;
|
749 |
ldebug ("set dma block len %d\n", s->block_size);
|
750 |
break;
|
751 |
|
752 |
case 0x74: |
753 |
case 0x75: |
754 |
case 0x76: |
755 |
case 0x77: |
756 |
/* ADPCM stuff, ignore */
|
757 |
break;
|
758 |
|
759 |
case 0x80: |
760 |
{ |
761 |
int freq, samples, bytes;
|
762 |
int64_t ticks; |
763 |
|
764 |
freq = s->freq > 0 ? s->freq : 11025; |
765 |
samples = dsp_get_lohi (s) + 1;
|
766 |
bytes = samples << s->fmt_stereo << (s->fmt_bits == 16);
|
767 |
ticks = (bytes * ticks_per_sec) / freq; |
768 |
if (ticks < ticks_per_sec / 1024) { |
769 |
qemu_irq_raise (s->pic[s->irq]); |
770 |
} |
771 |
else {
|
772 |
if (s->aux_ts) {
|
773 |
qemu_mod_timer ( |
774 |
s->aux_ts, |
775 |
qemu_get_clock (vm_clock) + ticks |
776 |
); |
777 |
} |
778 |
} |
779 |
ldebug ("mix silence %d %d %" PRId64 "\n", samples, bytes, ticks); |
780 |
} |
781 |
break;
|
782 |
|
783 |
case 0xe0: |
784 |
d0 = dsp_get_data (s); |
785 |
s->out_data_len = 0;
|
786 |
ldebug ("E0 data = %#x\n", d0);
|
787 |
dsp_out_data (s, ~d0); |
788 |
break;
|
789 |
|
790 |
case 0xe2: |
791 |
d0 = dsp_get_data (s); |
792 |
ldebug ("E2 = %#x\n", d0);
|
793 |
break;
|
794 |
|
795 |
case 0xe4: |
796 |
s->test_reg = dsp_get_data (s); |
797 |
break;
|
798 |
|
799 |
case 0xf9: |
800 |
d0 = dsp_get_data (s); |
801 |
ldebug ("command 0xf9 with %#x\n", d0);
|
802 |
switch (d0) {
|
803 |
case 0x0e: |
804 |
dsp_out_data (s, 0xff);
|
805 |
break;
|
806 |
|
807 |
case 0x0f: |
808 |
dsp_out_data (s, 0x07);
|
809 |
break;
|
810 |
|
811 |
case 0x37: |
812 |
dsp_out_data (s, 0x38);
|
813 |
break;
|
814 |
|
815 |
default:
|
816 |
dsp_out_data (s, 0x00);
|
817 |
break;
|
818 |
} |
819 |
break;
|
820 |
|
821 |
default:
|
822 |
dolog ("complete: unrecognized command %#x\n", s->cmd);
|
823 |
return;
|
824 |
} |
825 |
} |
826 |
|
827 |
ldebug ("\n");
|
828 |
s->cmd = -1;
|
829 |
return;
|
830 |
} |
831 |
|
832 |
static void legacy_reset (SB16State *s) |
833 |
{ |
834 |
struct audsettings as;
|
835 |
|
836 |
s->freq = 11025;
|
837 |
s->fmt_signed = 0;
|
838 |
s->fmt_bits = 8;
|
839 |
s->fmt_stereo = 0;
|
840 |
|
841 |
as.freq = s->freq; |
842 |
as.nchannels = 1;
|
843 |
as.fmt = AUD_FMT_U8; |
844 |
as.endianness = 0;
|
845 |
|
846 |
s->voice = AUD_open_out ( |
847 |
&s->card, |
848 |
s->voice, |
849 |
"sb16",
|
850 |
s, |
851 |
SB_audio_callback, |
852 |
&as |
853 |
); |
854 |
|
855 |
/* Not sure about that... */
|
856 |
/* AUD_set_active_out (s->voice, 1); */
|
857 |
} |
858 |
|
859 |
static void reset (SB16State *s) |
860 |
{ |
861 |
qemu_irq_lower (s->pic[s->irq]); |
862 |
if (s->dma_auto) {
|
863 |
qemu_irq_raise (s->pic[s->irq]); |
864 |
qemu_irq_lower (s->pic[s->irq]); |
865 |
} |
866 |
|
867 |
s->mixer_regs[0x82] = 0; |
868 |
s->dma_auto = 0;
|
869 |
s->in_index = 0;
|
870 |
s->out_data_len = 0;
|
871 |
s->left_till_irq = 0;
|
872 |
s->needed_bytes = 0;
|
873 |
s->block_size = -1;
|
874 |
s->nzero = 0;
|
875 |
s->highspeed = 0;
|
876 |
s->v2x6 = 0;
|
877 |
s->cmd = -1;
|
878 |
|
879 |
dsp_out_data(s, 0xaa);
|
880 |
speaker (s, 0);
|
881 |
control (s, 0);
|
882 |
legacy_reset (s); |
883 |
} |
884 |
|
885 |
static IO_WRITE_PROTO (dsp_write)
|
886 |
{ |
887 |
SB16State *s = opaque; |
888 |
int iport;
|
889 |
|
890 |
iport = nport - s->port; |
891 |
|
892 |
ldebug ("write %#x <- %#x\n", nport, val);
|
893 |
switch (iport) {
|
894 |
case 0x06: |
895 |
switch (val) {
|
896 |
case 0x00: |
897 |
if (s->v2x6 == 1) { |
898 |
if (0 && s->highspeed) { |
899 |
s->highspeed = 0;
|
900 |
qemu_irq_lower (s->pic[s->irq]); |
901 |
control (s, 0);
|
902 |
} |
903 |
else {
|
904 |
reset (s); |
905 |
} |
906 |
} |
907 |
s->v2x6 = 0;
|
908 |
break;
|
909 |
|
910 |
case 0x01: |
911 |
case 0x03: /* FreeBSD kludge */ |
912 |
s->v2x6 = 1;
|
913 |
break;
|
914 |
|
915 |
case 0xc6: |
916 |
s->v2x6 = 0; /* Prince of Persia, csp.sys, diagnose.exe */ |
917 |
break;
|
918 |
|
919 |
case 0xb8: /* Panic */ |
920 |
reset (s); |
921 |
break;
|
922 |
|
923 |
case 0x39: |
924 |
dsp_out_data (s, 0x38);
|
925 |
reset (s); |
926 |
s->v2x6 = 0x39;
|
927 |
break;
|
928 |
|
929 |
default:
|
930 |
s->v2x6 = val; |
931 |
break;
|
932 |
} |
933 |
break;
|
934 |
|
935 |
case 0x0c: /* write data or command | write status */ |
936 |
/* if (s->highspeed) */
|
937 |
/* break; */
|
938 |
|
939 |
if (0 == s->needed_bytes) { |
940 |
command (s, val); |
941 |
#if 0
|
942 |
if (0 == s->needed_bytes) {
|
943 |
log_dsp (s);
|
944 |
}
|
945 |
#endif
|
946 |
} |
947 |
else {
|
948 |
if (s->in_index == sizeof (s->in2_data)) { |
949 |
dolog ("in data overrun\n");
|
950 |
} |
951 |
else {
|
952 |
s->in2_data[s->in_index++] = val; |
953 |
if (s->in_index == s->needed_bytes) {
|
954 |
s->needed_bytes = 0;
|
955 |
complete (s); |
956 |
#if 0
|
957 |
log_dsp (s);
|
958 |
#endif
|
959 |
} |
960 |
} |
961 |
} |
962 |
break;
|
963 |
|
964 |
default:
|
965 |
ldebug ("(nport=%#x, val=%#x)\n", nport, val);
|
966 |
break;
|
967 |
} |
968 |
} |
969 |
|
970 |
static IO_READ_PROTO (dsp_read)
|
971 |
{ |
972 |
SB16State *s = opaque; |
973 |
int iport, retval, ack = 0; |
974 |
|
975 |
iport = nport - s->port; |
976 |
|
977 |
switch (iport) {
|
978 |
case 0x06: /* reset */ |
979 |
retval = 0xff;
|
980 |
break;
|
981 |
|
982 |
case 0x0a: /* read data */ |
983 |
if (s->out_data_len) {
|
984 |
retval = s->out_data[--s->out_data_len]; |
985 |
s->last_read_byte = retval; |
986 |
} |
987 |
else {
|
988 |
if (s->cmd != -1) { |
989 |
dolog ("empty output buffer for command %#x\n",
|
990 |
s->cmd); |
991 |
} |
992 |
retval = s->last_read_byte; |
993 |
/* goto error; */
|
994 |
} |
995 |
break;
|
996 |
|
997 |
case 0x0c: /* 0 can write */ |
998 |
retval = s->can_write ? 0 : 0x80; |
999 |
break;
|
1000 |
|
1001 |
case 0x0d: /* timer interrupt clear */ |
1002 |
/* dolog ("timer interrupt clear\n"); */
|
1003 |
retval = 0;
|
1004 |
break;
|
1005 |
|
1006 |
case 0x0e: /* data available status | irq 8 ack */ |
1007 |
retval = (!s->out_data_len || s->highspeed) ? 0 : 0x80; |
1008 |
if (s->mixer_regs[0x82] & 1) { |
1009 |
ack = 1;
|
1010 |
s->mixer_regs[0x82] &= 1; |
1011 |
qemu_irq_lower (s->pic[s->irq]); |
1012 |
} |
1013 |
break;
|
1014 |
|
1015 |
case 0x0f: /* irq 16 ack */ |
1016 |
retval = 0xff;
|
1017 |
if (s->mixer_regs[0x82] & 2) { |
1018 |
ack = 1;
|
1019 |
s->mixer_regs[0x82] &= 2; |
1020 |
qemu_irq_lower (s->pic[s->irq]); |
1021 |
} |
1022 |
break;
|
1023 |
|
1024 |
default:
|
1025 |
goto error;
|
1026 |
} |
1027 |
|
1028 |
if (!ack) {
|
1029 |
ldebug ("read %#x -> %#x\n", nport, retval);
|
1030 |
} |
1031 |
|
1032 |
return retval;
|
1033 |
|
1034 |
error:
|
1035 |
dolog ("warning: dsp_read %#x error\n", nport);
|
1036 |
return 0xff; |
1037 |
} |
1038 |
|
1039 |
static void reset_mixer (SB16State *s) |
1040 |
{ |
1041 |
int i;
|
1042 |
|
1043 |
memset (s->mixer_regs, 0xff, 0x7f); |
1044 |
memset (s->mixer_regs + 0x83, 0xff, sizeof (s->mixer_regs) - 0x83); |
1045 |
|
1046 |
s->mixer_regs[0x02] = 4; /* master volume 3bits */ |
1047 |
s->mixer_regs[0x06] = 4; /* MIDI volume 3bits */ |
1048 |
s->mixer_regs[0x08] = 0; /* CD volume 3bits */ |
1049 |
s->mixer_regs[0x0a] = 0; /* voice volume 2bits */ |
1050 |
|
1051 |
/* d5=input filt, d3=lowpass filt, d1,d2=input source */
|
1052 |
s->mixer_regs[0x0c] = 0; |
1053 |
|
1054 |
/* d5=output filt, d1=stereo switch */
|
1055 |
s->mixer_regs[0x0e] = 0; |
1056 |
|
1057 |
/* voice volume L d5,d7, R d1,d3 */
|
1058 |
s->mixer_regs[0x04] = (4 << 5) | (4 << 1); |
1059 |
/* master ... */
|
1060 |
s->mixer_regs[0x22] = (4 << 5) | (4 << 1); |
1061 |
/* MIDI ... */
|
1062 |
s->mixer_regs[0x26] = (4 << 5) | (4 << 1); |
1063 |
|
1064 |
for (i = 0x30; i < 0x48; i++) { |
1065 |
s->mixer_regs[i] = 0x20;
|
1066 |
} |
1067 |
} |
1068 |
|
1069 |
static IO_WRITE_PROTO(mixer_write_indexb)
|
1070 |
{ |
1071 |
SB16State *s = opaque; |
1072 |
(void) nport;
|
1073 |
s->mixer_nreg = val; |
1074 |
} |
1075 |
|
1076 |
static IO_WRITE_PROTO(mixer_write_datab)
|
1077 |
{ |
1078 |
SB16State *s = opaque; |
1079 |
|
1080 |
(void) nport;
|
1081 |
ldebug ("mixer_write [%#x] <- %#x\n", s->mixer_nreg, val);
|
1082 |
|
1083 |
switch (s->mixer_nreg) {
|
1084 |
case 0x00: |
1085 |
reset_mixer (s); |
1086 |
break;
|
1087 |
|
1088 |
case 0x80: |
1089 |
{ |
1090 |
int irq = irq_of_magic (val);
|
1091 |
ldebug ("setting irq to %d (val=%#x)\n", irq, val);
|
1092 |
if (irq > 0) { |
1093 |
s->irq = irq; |
1094 |
} |
1095 |
} |
1096 |
break;
|
1097 |
|
1098 |
case 0x81: |
1099 |
{ |
1100 |
int dma, hdma;
|
1101 |
|
1102 |
dma = lsbindex (val & 0xf);
|
1103 |
hdma = lsbindex (val & 0xf0);
|
1104 |
if (dma != s->dma || hdma != s->hdma) {
|
1105 |
dolog ( |
1106 |
"attempt to change DMA "
|
1107 |
"8bit %d(%d), 16bit %d(%d) (val=%#x)\n",
|
1108 |
dma, s->dma, hdma, s->hdma, val); |
1109 |
} |
1110 |
#if 0
|
1111 |
s->dma = dma;
|
1112 |
s->hdma = hdma;
|
1113 |
#endif
|
1114 |
} |
1115 |
break;
|
1116 |
|
1117 |
case 0x82: |
1118 |
dolog ("attempt to write into IRQ status register (val=%#x)\n",
|
1119 |
val); |
1120 |
return;
|
1121 |
|
1122 |
default:
|
1123 |
if (s->mixer_nreg >= 0x80) { |
1124 |
ldebug ("attempt to write mixer[%#x] <- %#x\n", s->mixer_nreg, val);
|
1125 |
} |
1126 |
break;
|
1127 |
} |
1128 |
|
1129 |
s->mixer_regs[s->mixer_nreg] = val; |
1130 |
} |
1131 |
|
1132 |
static IO_WRITE_PROTO(mixer_write_indexw)
|
1133 |
{ |
1134 |
mixer_write_indexb (opaque, nport, val & 0xff);
|
1135 |
mixer_write_datab (opaque, nport, (val >> 8) & 0xff); |
1136 |
} |
1137 |
|
1138 |
static IO_READ_PROTO(mixer_read)
|
1139 |
{ |
1140 |
SB16State *s = opaque; |
1141 |
|
1142 |
(void) nport;
|
1143 |
#ifndef DEBUG_SB16_MOST
|
1144 |
if (s->mixer_nreg != 0x82) { |
1145 |
ldebug ("mixer_read[%#x] -> %#x\n",
|
1146 |
s->mixer_nreg, s->mixer_regs[s->mixer_nreg]); |
1147 |
} |
1148 |
#else
|
1149 |
ldebug ("mixer_read[%#x] -> %#x\n",
|
1150 |
s->mixer_nreg, s->mixer_regs[s->mixer_nreg]); |
1151 |
#endif
|
1152 |
return s->mixer_regs[s->mixer_nreg];
|
1153 |
} |
1154 |
|
1155 |
static int write_audio (SB16State *s, int nchan, int dma_pos, |
1156 |
int dma_len, int len) |
1157 |
{ |
1158 |
int temp, net;
|
1159 |
uint8_t tmpbuf[4096];
|
1160 |
|
1161 |
temp = len; |
1162 |
net = 0;
|
1163 |
|
1164 |
while (temp) {
|
1165 |
int left = dma_len - dma_pos;
|
1166 |
int copied;
|
1167 |
size_t to_copy; |
1168 |
|
1169 |
to_copy = audio_MIN (temp, left); |
1170 |
if (to_copy > sizeof (tmpbuf)) { |
1171 |
to_copy = sizeof (tmpbuf);
|
1172 |
} |
1173 |
|
1174 |
copied = DMA_read_memory (nchan, tmpbuf, dma_pos, to_copy); |
1175 |
copied = AUD_write (s->voice, tmpbuf, copied); |
1176 |
|
1177 |
temp -= copied; |
1178 |
dma_pos = (dma_pos + copied) % dma_len; |
1179 |
net += copied; |
1180 |
|
1181 |
if (!copied) {
|
1182 |
break;
|
1183 |
} |
1184 |
} |
1185 |
|
1186 |
return net;
|
1187 |
} |
1188 |
|
1189 |
static int SB_read_DMA (void *opaque, int nchan, int dma_pos, int dma_len) |
1190 |
{ |
1191 |
SB16State *s = opaque; |
1192 |
int till, copy, written, free;
|
1193 |
|
1194 |
if (s->block_size <= 0) { |
1195 |
dolog ("invalid block size=%d nchan=%d dma_pos=%d dma_len=%d\n",
|
1196 |
s->block_size, nchan, dma_pos, dma_len); |
1197 |
return dma_pos;
|
1198 |
} |
1199 |
|
1200 |
if (s->left_till_irq < 0) { |
1201 |
s->left_till_irq = s->block_size; |
1202 |
} |
1203 |
|
1204 |
if (s->voice) {
|
1205 |
free = s->audio_free & ~s->align; |
1206 |
if ((free <= 0) || !dma_len) { |
1207 |
return dma_pos;
|
1208 |
} |
1209 |
} |
1210 |
else {
|
1211 |
free = dma_len; |
1212 |
} |
1213 |
|
1214 |
copy = free; |
1215 |
till = s->left_till_irq; |
1216 |
|
1217 |
#ifdef DEBUG_SB16_MOST
|
1218 |
dolog ("pos:%06d %d till:%d len:%d\n",
|
1219 |
dma_pos, free, till, dma_len); |
1220 |
#endif
|
1221 |
|
1222 |
if (till <= copy) {
|
1223 |
if (0 == s->dma_auto) { |
1224 |
copy = till; |
1225 |
} |
1226 |
} |
1227 |
|
1228 |
written = write_audio (s, nchan, dma_pos, dma_len, copy); |
1229 |
dma_pos = (dma_pos + written) % dma_len; |
1230 |
s->left_till_irq -= written; |
1231 |
|
1232 |
if (s->left_till_irq <= 0) { |
1233 |
s->mixer_regs[0x82] |= (nchan & 4) ? 2 : 1; |
1234 |
qemu_irq_raise (s->pic[s->irq]); |
1235 |
if (0 == s->dma_auto) { |
1236 |
control (s, 0);
|
1237 |
speaker (s, 0);
|
1238 |
} |
1239 |
} |
1240 |
|
1241 |
#ifdef DEBUG_SB16_MOST
|
1242 |
ldebug ("pos %5d free %5d size %5d till % 5d copy %5d written %5d size %5d\n",
|
1243 |
dma_pos, free, dma_len, s->left_till_irq, copy, written, |
1244 |
s->block_size); |
1245 |
#endif
|
1246 |
|
1247 |
while (s->left_till_irq <= 0) { |
1248 |
s->left_till_irq = s->block_size + s->left_till_irq; |
1249 |
} |
1250 |
|
1251 |
return dma_pos;
|
1252 |
} |
1253 |
|
1254 |
static void SB_audio_callback (void *opaque, int free) |
1255 |
{ |
1256 |
SB16State *s = opaque; |
1257 |
s->audio_free = free; |
1258 |
} |
1259 |
|
1260 |
static void SB_save (QEMUFile *f, void *opaque) |
1261 |
{ |
1262 |
SB16State *s = opaque; |
1263 |
|
1264 |
qemu_put_be32 (f, s->irq); |
1265 |
qemu_put_be32 (f, s->dma); |
1266 |
qemu_put_be32 (f, s->hdma); |
1267 |
qemu_put_be32 (f, s->port); |
1268 |
qemu_put_be32 (f, s->ver); |
1269 |
qemu_put_be32 (f, s->in_index); |
1270 |
qemu_put_be32 (f, s->out_data_len); |
1271 |
qemu_put_be32 (f, s->fmt_stereo); |
1272 |
qemu_put_be32 (f, s->fmt_signed); |
1273 |
qemu_put_be32 (f, s->fmt_bits); |
1274 |
qemu_put_be32s (f, &s->fmt); |
1275 |
qemu_put_be32 (f, s->dma_auto); |
1276 |
qemu_put_be32 (f, s->block_size); |
1277 |
qemu_put_be32 (f, s->fifo); |
1278 |
qemu_put_be32 (f, s->freq); |
1279 |
qemu_put_be32 (f, s->time_const); |
1280 |
qemu_put_be32 (f, s->speaker); |
1281 |
qemu_put_be32 (f, s->needed_bytes); |
1282 |
qemu_put_be32 (f, s->cmd); |
1283 |
qemu_put_be32 (f, s->use_hdma); |
1284 |
qemu_put_be32 (f, s->highspeed); |
1285 |
qemu_put_be32 (f, s->can_write); |
1286 |
qemu_put_be32 (f, s->v2x6); |
1287 |
|
1288 |
qemu_put_8s (f, &s->csp_param); |
1289 |
qemu_put_8s (f, &s->csp_value); |
1290 |
qemu_put_8s (f, &s->csp_mode); |
1291 |
qemu_put_8s (f, &s->csp_param); |
1292 |
qemu_put_buffer (f, s->csp_regs, 256);
|
1293 |
qemu_put_8s (f, &s->csp_index); |
1294 |
qemu_put_buffer (f, s->csp_reg83, 4);
|
1295 |
qemu_put_be32 (f, s->csp_reg83r); |
1296 |
qemu_put_be32 (f, s->csp_reg83w); |
1297 |
|
1298 |
qemu_put_buffer (f, s->in2_data, sizeof (s->in2_data));
|
1299 |
qemu_put_buffer (f, s->out_data, sizeof (s->out_data));
|
1300 |
qemu_put_8s (f, &s->test_reg); |
1301 |
qemu_put_8s (f, &s->last_read_byte); |
1302 |
|
1303 |
qemu_put_be32 (f, s->nzero); |
1304 |
qemu_put_be32 (f, s->left_till_irq); |
1305 |
qemu_put_be32 (f, s->dma_running); |
1306 |
qemu_put_be32 (f, s->bytes_per_second); |
1307 |
qemu_put_be32 (f, s->align); |
1308 |
|
1309 |
qemu_put_be32 (f, s->mixer_nreg); |
1310 |
qemu_put_buffer (f, s->mixer_regs, 256);
|
1311 |
} |
1312 |
|
1313 |
static int SB_load (QEMUFile *f, void *opaque, int version_id) |
1314 |
{ |
1315 |
SB16State *s = opaque; |
1316 |
|
1317 |
if (version_id != 1) { |
1318 |
return -EINVAL;
|
1319 |
} |
1320 |
|
1321 |
s->irq=qemu_get_be32 (f); |
1322 |
s->dma=qemu_get_be32 (f); |
1323 |
s->hdma=qemu_get_be32 (f); |
1324 |
s->port=qemu_get_be32 (f); |
1325 |
s->ver=qemu_get_be32 (f); |
1326 |
s->in_index=qemu_get_be32 (f); |
1327 |
s->out_data_len=qemu_get_be32 (f); |
1328 |
s->fmt_stereo=qemu_get_be32 (f); |
1329 |
s->fmt_signed=qemu_get_be32 (f); |
1330 |
s->fmt_bits=qemu_get_be32 (f); |
1331 |
qemu_get_be32s (f, &s->fmt); |
1332 |
s->dma_auto=qemu_get_be32 (f); |
1333 |
s->block_size=qemu_get_be32 (f); |
1334 |
s->fifo=qemu_get_be32 (f); |
1335 |
s->freq=qemu_get_be32 (f); |
1336 |
s->time_const=qemu_get_be32 (f); |
1337 |
s->speaker=qemu_get_be32 (f); |
1338 |
s->needed_bytes=qemu_get_be32 (f); |
1339 |
s->cmd=qemu_get_be32 (f); |
1340 |
s->use_hdma=qemu_get_be32 (f); |
1341 |
s->highspeed=qemu_get_be32 (f); |
1342 |
s->can_write=qemu_get_be32 (f); |
1343 |
s->v2x6=qemu_get_be32 (f); |
1344 |
|
1345 |
qemu_get_8s (f, &s->csp_param); |
1346 |
qemu_get_8s (f, &s->csp_value); |
1347 |
qemu_get_8s (f, &s->csp_mode); |
1348 |
qemu_get_8s (f, &s->csp_param); |
1349 |
qemu_get_buffer (f, s->csp_regs, 256);
|
1350 |
qemu_get_8s (f, &s->csp_index); |
1351 |
qemu_get_buffer (f, s->csp_reg83, 4);
|
1352 |
s->csp_reg83r=qemu_get_be32 (f); |
1353 |
s->csp_reg83w=qemu_get_be32 (f); |
1354 |
|
1355 |
qemu_get_buffer (f, s->in2_data, sizeof (s->in2_data));
|
1356 |
qemu_get_buffer (f, s->out_data, sizeof (s->out_data));
|
1357 |
qemu_get_8s (f, &s->test_reg); |
1358 |
qemu_get_8s (f, &s->last_read_byte); |
1359 |
|
1360 |
s->nzero=qemu_get_be32 (f); |
1361 |
s->left_till_irq=qemu_get_be32 (f); |
1362 |
s->dma_running=qemu_get_be32 (f); |
1363 |
s->bytes_per_second=qemu_get_be32 (f); |
1364 |
s->align=qemu_get_be32 (f); |
1365 |
|
1366 |
s->mixer_nreg=qemu_get_be32 (f); |
1367 |
qemu_get_buffer (f, s->mixer_regs, 256);
|
1368 |
|
1369 |
if (s->voice) {
|
1370 |
AUD_close_out (&s->card, s->voice); |
1371 |
s->voice = NULL;
|
1372 |
} |
1373 |
|
1374 |
if (s->dma_running) {
|
1375 |
if (s->freq) {
|
1376 |
struct audsettings as;
|
1377 |
|
1378 |
s->audio_free = 0;
|
1379 |
|
1380 |
as.freq = s->freq; |
1381 |
as.nchannels = 1 << s->fmt_stereo;
|
1382 |
as.fmt = s->fmt; |
1383 |
as.endianness = 0;
|
1384 |
|
1385 |
s->voice = AUD_open_out ( |
1386 |
&s->card, |
1387 |
s->voice, |
1388 |
"sb16",
|
1389 |
s, |
1390 |
SB_audio_callback, |
1391 |
&as |
1392 |
); |
1393 |
} |
1394 |
|
1395 |
control (s, 1);
|
1396 |
speaker (s, s->speaker); |
1397 |
} |
1398 |
return 0; |
1399 |
} |
1400 |
|
1401 |
int SB16_init (AudioState *audio, qemu_irq *pic)
|
1402 |
{ |
1403 |
SB16State *s; |
1404 |
int i;
|
1405 |
static const uint8_t dsp_write_ports[] = {0x6, 0xc}; |
1406 |
static const uint8_t dsp_read_ports[] = {0x6, 0xa, 0xc, 0xd, 0xe, 0xf}; |
1407 |
|
1408 |
if (!audio) {
|
1409 |
dolog ("No audio state\n");
|
1410 |
return -1; |
1411 |
} |
1412 |
|
1413 |
s = qemu_mallocz (sizeof (*s));
|
1414 |
|
1415 |
s->cmd = -1;
|
1416 |
s->pic = pic; |
1417 |
s->irq = conf.irq; |
1418 |
s->dma = conf.dma; |
1419 |
s->hdma = conf.hdma; |
1420 |
s->port = conf.port; |
1421 |
s->ver = conf.ver_lo | (conf.ver_hi << 8);
|
1422 |
|
1423 |
s->mixer_regs[0x80] = magic_of_irq (s->irq);
|
1424 |
s->mixer_regs[0x81] = (1 << s->dma) | (1 << s->hdma); |
1425 |
s->mixer_regs[0x82] = 2 << 5; |
1426 |
|
1427 |
s->csp_regs[5] = 1; |
1428 |
s->csp_regs[9] = 0xf8; |
1429 |
|
1430 |
reset_mixer (s); |
1431 |
s->aux_ts = qemu_new_timer (vm_clock, aux_timer, s); |
1432 |
if (!s->aux_ts) {
|
1433 |
dolog ("warning: Could not create auxiliary timer\n");
|
1434 |
} |
1435 |
|
1436 |
for (i = 0; i < ARRAY_SIZE (dsp_write_ports); i++) { |
1437 |
register_ioport_write (s->port + dsp_write_ports[i], 1, 1, dsp_write, s); |
1438 |
} |
1439 |
|
1440 |
for (i = 0; i < ARRAY_SIZE (dsp_read_ports); i++) { |
1441 |
register_ioport_read (s->port + dsp_read_ports[i], 1, 1, dsp_read, s); |
1442 |
} |
1443 |
|
1444 |
register_ioport_write (s->port + 0x4, 1, 1, mixer_write_indexb, s); |
1445 |
register_ioport_write (s->port + 0x4, 1, 2, mixer_write_indexw, s); |
1446 |
register_ioport_read (s->port + 0x5, 1, 1, mixer_read, s); |
1447 |
register_ioport_write (s->port + 0x5, 1, 1, mixer_write_datab, s); |
1448 |
|
1449 |
DMA_register_channel (s->hdma, SB_read_DMA, s); |
1450 |
DMA_register_channel (s->dma, SB_read_DMA, s); |
1451 |
s->can_write = 1;
|
1452 |
|
1453 |
register_savevm ("sb16", 0, 1, SB_save, SB_load, s); |
1454 |
AUD_register_card (audio, "sb16", &s->card);
|
1455 |
return 0; |
1456 |
} |