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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 |
|
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#define dolog(...) AUD_log ("sb16", __VA_ARGS__) |
33 |
|
34 |
/* #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
|
42 |
|
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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) |
47 |
|
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static const char e3[] = "COPYRIGHT (C) CREATIVE TECHNOLOGY LTD, 1992."; |
49 |
|
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typedef struct SB16State { |
51 |
ISADevice dev; |
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QEMUSoundCard card; |
53 |
qemu_irq pic; |
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uint32_t irq; |
55 |
uint32_t dma; |
56 |
uint32_t hdma; |
57 |
uint32_t port; |
58 |
uint32_t ver; |
59 |
|
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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; |
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int dma_auto;
|
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int block_size;
|
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int fifo;
|
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int freq;
|
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int time_const;
|
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int speaker;
|
72 |
int needed_bytes;
|
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int cmd;
|
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int use_hdma;
|
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int highspeed;
|
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int can_write;
|
77 |
|
78 |
int v2x6;
|
79 |
|
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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];
|
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int csp_reg83r;
|
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int csp_reg83w;
|
88 |
|
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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; |
92 |
uint8_t last_read_byte; |
93 |
int nzero;
|
94 |
|
95 |
int left_till_irq;
|
96 |
|
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int dma_running;
|
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int bytes_per_second;
|
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int align;
|
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int audio_free;
|
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SWVoiceOut *voice; |
102 |
|
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QEMUTimer *aux_ts; |
104 |
/* mixer state */
|
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int mixer_nreg;
|
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uint8_t mixer_regs[256];
|
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} SB16State; |
108 |
|
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static void SB_audio_callback (void *opaque, int free); |
110 |
|
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static int magic_of_irq (int irq) |
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{ |
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switch (irq) {
|
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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; |
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default:
|
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dolog ("bad irq %d\n", irq);
|
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return 2; |
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} |
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} |
127 |
|
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static int irq_of_magic (int magic) |
129 |
{ |
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switch (magic) {
|
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case 1: |
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return 9; |
133 |
case 2: |
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return 5; |
135 |
case 4: |
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return 7; |
137 |
case 8: |
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return 10; |
139 |
default:
|
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dolog ("bad irq magic %d\n", magic);
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return -1; |
142 |
} |
143 |
} |
144 |
|
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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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dsp->fmt_bits,
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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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}
|
158 |
#endif
|
159 |
|
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static void speaker (SB16State *s, int on) |
161 |
{ |
162 |
s->speaker = on; |
163 |
/* 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);
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|
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if (hold) {
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DMA_hold_DREQ (dma); |
175 |
AUD_set_active_out (s->voice, 1);
|
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} |
177 |
else {
|
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DMA_release_DREQ (dma); |
179 |
AUD_set_active_out (s->voice, 0);
|
180 |
} |
181 |
} |
182 |
|
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static void aux_timer (void *opaque) |
184 |
{ |
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SB16State *s = opaque; |
186 |
s->can_write = 1;
|
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qemu_irq_raise (s->pic); |
188 |
} |
189 |
|
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#define DMA8_AUTO 1 |
191 |
#define DMA8_HIGH 2 |
192 |
|
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static void continue_dma8 (SB16State *s) |
194 |
{ |
195 |
if (s->freq > 0) { |
196 |
struct audsettings as;
|
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|
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s->audio_free = 0;
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|
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as.freq = s->freq; |
201 |
as.nchannels = 1 << s->fmt_stereo;
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as.fmt = s->fmt; |
203 |
as.endianness = 0;
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204 |
|
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s->voice = AUD_open_out ( |
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&s->card, |
207 |
s->voice, |
208 |
"sb16",
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s, |
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SB_audio_callback, |
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&as |
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); |
213 |
} |
214 |
|
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control (s, 1);
|
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} |
217 |
|
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static void dma_cmd8 (SB16State *s, int mask, int dma_len) |
219 |
{ |
220 |
s->fmt = AUD_FMT_U8; |
221 |
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; |
225 |
if (-1 == s->time_const) { |
226 |
if (s->freq <= 0) |
227 |
s->freq = 11025;
|
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} |
229 |
else {
|
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int tmp = (256 - s->time_const); |
231 |
s->freq = (1000000 + (tmp / 2)) / tmp; |
232 |
} |
233 |
|
234 |
if (dma_len != -1) { |
235 |
s->block_size = dma_len << s->fmt_stereo; |
236 |
} |
237 |
else {
|
238 |
/* This is apparently the only way to make both Act1/PL
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239 |
and SecondReality/FC work
|
240 |
|
241 |
Act1 sets block size via command 0x48 and it's an odd number
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242 |
SR does the same with even number
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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 |
|
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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; */
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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) {
|
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dolog ("warning: misaligned block size %d, alignment %d\n",
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s->block_size, s->align + 1);
|
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} |
259 |
|
260 |
ldebug ("freq %d, stereo %d, sign %d, bits %d, "
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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 |
return;
|
826 |
} |
827 |
|
828 |
static void legacy_reset (SB16State *s) |
829 |
{ |
830 |
struct audsettings as;
|
831 |
|
832 |
s->freq = 11025;
|
833 |
s->fmt_signed = 0;
|
834 |
s->fmt_bits = 8;
|
835 |
s->fmt_stereo = 0;
|
836 |
|
837 |
as.freq = s->freq; |
838 |
as.nchannels = 1;
|
839 |
as.fmt = AUD_FMT_U8; |
840 |
as.endianness = 0;
|
841 |
|
842 |
s->voice = AUD_open_out ( |
843 |
&s->card, |
844 |
s->voice, |
845 |
"sb16",
|
846 |
s, |
847 |
SB_audio_callback, |
848 |
&as |
849 |
); |
850 |
|
851 |
/* Not sure about that... */
|
852 |
/* AUD_set_active_out (s->voice, 1); */
|
853 |
} |
854 |
|
855 |
static void reset (SB16State *s) |
856 |
{ |
857 |
qemu_irq_lower (s->pic); |
858 |
if (s->dma_auto) {
|
859 |
qemu_irq_raise (s->pic); |
860 |
qemu_irq_lower (s->pic); |
861 |
} |
862 |
|
863 |
s->mixer_regs[0x82] = 0; |
864 |
s->dma_auto = 0;
|
865 |
s->in_index = 0;
|
866 |
s->out_data_len = 0;
|
867 |
s->left_till_irq = 0;
|
868 |
s->needed_bytes = 0;
|
869 |
s->block_size = -1;
|
870 |
s->nzero = 0;
|
871 |
s->highspeed = 0;
|
872 |
s->v2x6 = 0;
|
873 |
s->cmd = -1;
|
874 |
|
875 |
dsp_out_data (s, 0xaa);
|
876 |
speaker (s, 0);
|
877 |
control (s, 0);
|
878 |
legacy_reset (s); |
879 |
} |
880 |
|
881 |
static IO_WRITE_PROTO (dsp_write)
|
882 |
{ |
883 |
SB16State *s = opaque; |
884 |
int iport;
|
885 |
|
886 |
iport = nport - s->port; |
887 |
|
888 |
ldebug ("write %#x <- %#x\n", nport, val);
|
889 |
switch (iport) {
|
890 |
case 0x06: |
891 |
switch (val) {
|
892 |
case 0x00: |
893 |
if (s->v2x6 == 1) { |
894 |
reset (s); |
895 |
} |
896 |
s->v2x6 = 0;
|
897 |
break;
|
898 |
|
899 |
case 0x01: |
900 |
case 0x03: /* FreeBSD kludge */ |
901 |
s->v2x6 = 1;
|
902 |
break;
|
903 |
|
904 |
case 0xc6: |
905 |
s->v2x6 = 0; /* Prince of Persia, csp.sys, diagnose.exe */ |
906 |
break;
|
907 |
|
908 |
case 0xb8: /* Panic */ |
909 |
reset (s); |
910 |
break;
|
911 |
|
912 |
case 0x39: |
913 |
dsp_out_data (s, 0x38);
|
914 |
reset (s); |
915 |
s->v2x6 = 0x39;
|
916 |
break;
|
917 |
|
918 |
default:
|
919 |
s->v2x6 = val; |
920 |
break;
|
921 |
} |
922 |
break;
|
923 |
|
924 |
case 0x0c: /* write data or command | write status */ |
925 |
/* if (s->highspeed) */
|
926 |
/* break; */
|
927 |
|
928 |
if (0 == s->needed_bytes) { |
929 |
command (s, val); |
930 |
#if 0
|
931 |
if (0 == s->needed_bytes) {
|
932 |
log_dsp (s);
|
933 |
}
|
934 |
#endif
|
935 |
} |
936 |
else {
|
937 |
if (s->in_index == sizeof (s->in2_data)) { |
938 |
dolog ("in data overrun\n");
|
939 |
} |
940 |
else {
|
941 |
s->in2_data[s->in_index++] = val; |
942 |
if (s->in_index == s->needed_bytes) {
|
943 |
s->needed_bytes = 0;
|
944 |
complete (s); |
945 |
#if 0
|
946 |
log_dsp (s);
|
947 |
#endif
|
948 |
} |
949 |
} |
950 |
} |
951 |
break;
|
952 |
|
953 |
default:
|
954 |
ldebug ("(nport=%#x, val=%#x)\n", nport, val);
|
955 |
break;
|
956 |
} |
957 |
} |
958 |
|
959 |
static IO_READ_PROTO (dsp_read)
|
960 |
{ |
961 |
SB16State *s = opaque; |
962 |
int iport, retval, ack = 0; |
963 |
|
964 |
iport = nport - s->port; |
965 |
|
966 |
switch (iport) {
|
967 |
case 0x06: /* reset */ |
968 |
retval = 0xff;
|
969 |
break;
|
970 |
|
971 |
case 0x0a: /* read data */ |
972 |
if (s->out_data_len) {
|
973 |
retval = s->out_data[--s->out_data_len]; |
974 |
s->last_read_byte = retval; |
975 |
} |
976 |
else {
|
977 |
if (s->cmd != -1) { |
978 |
dolog ("empty output buffer for command %#x\n",
|
979 |
s->cmd); |
980 |
} |
981 |
retval = s->last_read_byte; |
982 |
/* goto error; */
|
983 |
} |
984 |
break;
|
985 |
|
986 |
case 0x0c: /* 0 can write */ |
987 |
retval = s->can_write ? 0 : 0x80; |
988 |
break;
|
989 |
|
990 |
case 0x0d: /* timer interrupt clear */ |
991 |
/* dolog ("timer interrupt clear\n"); */
|
992 |
retval = 0;
|
993 |
break;
|
994 |
|
995 |
case 0x0e: /* data available status | irq 8 ack */ |
996 |
retval = (!s->out_data_len || s->highspeed) ? 0 : 0x80; |
997 |
if (s->mixer_regs[0x82] & 1) { |
998 |
ack = 1;
|
999 |
s->mixer_regs[0x82] &= 1; |
1000 |
qemu_irq_lower (s->pic); |
1001 |
} |
1002 |
break;
|
1003 |
|
1004 |
case 0x0f: /* irq 16 ack */ |
1005 |
retval = 0xff;
|
1006 |
if (s->mixer_regs[0x82] & 2) { |
1007 |
ack = 1;
|
1008 |
s->mixer_regs[0x82] &= 2; |
1009 |
qemu_irq_lower (s->pic); |
1010 |
} |
1011 |
break;
|
1012 |
|
1013 |
default:
|
1014 |
goto error;
|
1015 |
} |
1016 |
|
1017 |
if (!ack) {
|
1018 |
ldebug ("read %#x -> %#x\n", nport, retval);
|
1019 |
} |
1020 |
|
1021 |
return retval;
|
1022 |
|
1023 |
error:
|
1024 |
dolog ("warning: dsp_read %#x error\n", nport);
|
1025 |
return 0xff; |
1026 |
} |
1027 |
|
1028 |
static void reset_mixer (SB16State *s) |
1029 |
{ |
1030 |
int i;
|
1031 |
|
1032 |
memset (s->mixer_regs, 0xff, 0x7f); |
1033 |
memset (s->mixer_regs + 0x83, 0xff, sizeof (s->mixer_regs) - 0x83); |
1034 |
|
1035 |
s->mixer_regs[0x02] = 4; /* master volume 3bits */ |
1036 |
s->mixer_regs[0x06] = 4; /* MIDI volume 3bits */ |
1037 |
s->mixer_regs[0x08] = 0; /* CD volume 3bits */ |
1038 |
s->mixer_regs[0x0a] = 0; /* voice volume 2bits */ |
1039 |
|
1040 |
/* d5=input filt, d3=lowpass filt, d1,d2=input source */
|
1041 |
s->mixer_regs[0x0c] = 0; |
1042 |
|
1043 |
/* d5=output filt, d1=stereo switch */
|
1044 |
s->mixer_regs[0x0e] = 0; |
1045 |
|
1046 |
/* voice volume L d5,d7, R d1,d3 */
|
1047 |
s->mixer_regs[0x04] = (4 << 5) | (4 << 1); |
1048 |
/* master ... */
|
1049 |
s->mixer_regs[0x22] = (4 << 5) | (4 << 1); |
1050 |
/* MIDI ... */
|
1051 |
s->mixer_regs[0x26] = (4 << 5) | (4 << 1); |
1052 |
|
1053 |
for (i = 0x30; i < 0x48; i++) { |
1054 |
s->mixer_regs[i] = 0x20;
|
1055 |
} |
1056 |
} |
1057 |
|
1058 |
static IO_WRITE_PROTO (mixer_write_indexb)
|
1059 |
{ |
1060 |
SB16State *s = opaque; |
1061 |
(void) nport;
|
1062 |
s->mixer_nreg = val; |
1063 |
} |
1064 |
|
1065 |
static IO_WRITE_PROTO (mixer_write_datab)
|
1066 |
{ |
1067 |
SB16State *s = opaque; |
1068 |
|
1069 |
(void) nport;
|
1070 |
ldebug ("mixer_write [%#x] <- %#x\n", s->mixer_nreg, val);
|
1071 |
|
1072 |
switch (s->mixer_nreg) {
|
1073 |
case 0x00: |
1074 |
reset_mixer (s); |
1075 |
break;
|
1076 |
|
1077 |
case 0x80: |
1078 |
{ |
1079 |
int irq = irq_of_magic (val);
|
1080 |
ldebug ("setting irq to %d (val=%#x)\n", irq, val);
|
1081 |
if (irq > 0) { |
1082 |
s->irq = irq; |
1083 |
} |
1084 |
} |
1085 |
break;
|
1086 |
|
1087 |
case 0x81: |
1088 |
{ |
1089 |
int dma, hdma;
|
1090 |
|
1091 |
dma = ctz32 (val & 0xf);
|
1092 |
hdma = ctz32 (val & 0xf0);
|
1093 |
if (dma != s->dma || hdma != s->hdma) {
|
1094 |
dolog ( |
1095 |
"attempt to change DMA "
|
1096 |
"8bit %d(%d), 16bit %d(%d) (val=%#x)\n",
|
1097 |
dma, s->dma, hdma, s->hdma, val); |
1098 |
} |
1099 |
#if 0
|
1100 |
s->dma = dma;
|
1101 |
s->hdma = hdma;
|
1102 |
#endif
|
1103 |
} |
1104 |
break;
|
1105 |
|
1106 |
case 0x82: |
1107 |
dolog ("attempt to write into IRQ status register (val=%#x)\n",
|
1108 |
val); |
1109 |
return;
|
1110 |
|
1111 |
default:
|
1112 |
if (s->mixer_nreg >= 0x80) { |
1113 |
ldebug ("attempt to write mixer[%#x] <- %#x\n", s->mixer_nreg, val);
|
1114 |
} |
1115 |
break;
|
1116 |
} |
1117 |
|
1118 |
s->mixer_regs[s->mixer_nreg] = val; |
1119 |
} |
1120 |
|
1121 |
static IO_WRITE_PROTO (mixer_write_indexw)
|
1122 |
{ |
1123 |
mixer_write_indexb (opaque, nport, val & 0xff);
|
1124 |
mixer_write_datab (opaque, nport, (val >> 8) & 0xff); |
1125 |
} |
1126 |
|
1127 |
static IO_READ_PROTO (mixer_read)
|
1128 |
{ |
1129 |
SB16State *s = opaque; |
1130 |
|
1131 |
(void) nport;
|
1132 |
#ifndef DEBUG_SB16_MOST
|
1133 |
if (s->mixer_nreg != 0x82) { |
1134 |
ldebug ("mixer_read[%#x] -> %#x\n",
|
1135 |
s->mixer_nreg, s->mixer_regs[s->mixer_nreg]); |
1136 |
} |
1137 |
#else
|
1138 |
ldebug ("mixer_read[%#x] -> %#x\n",
|
1139 |
s->mixer_nreg, s->mixer_regs[s->mixer_nreg]); |
1140 |
#endif
|
1141 |
return s->mixer_regs[s->mixer_nreg];
|
1142 |
} |
1143 |
|
1144 |
static int write_audio (SB16State *s, int nchan, int dma_pos, |
1145 |
int dma_len, int len) |
1146 |
{ |
1147 |
int temp, net;
|
1148 |
uint8_t tmpbuf[4096];
|
1149 |
|
1150 |
temp = len; |
1151 |
net = 0;
|
1152 |
|
1153 |
while (temp) {
|
1154 |
int left = dma_len - dma_pos;
|
1155 |
int copied;
|
1156 |
size_t to_copy; |
1157 |
|
1158 |
to_copy = audio_MIN (temp, left); |
1159 |
if (to_copy > sizeof (tmpbuf)) { |
1160 |
to_copy = sizeof (tmpbuf);
|
1161 |
} |
1162 |
|
1163 |
copied = DMA_read_memory (nchan, tmpbuf, dma_pos, to_copy); |
1164 |
copied = AUD_write (s->voice, tmpbuf, copied); |
1165 |
|
1166 |
temp -= copied; |
1167 |
dma_pos = (dma_pos + copied) % dma_len; |
1168 |
net += copied; |
1169 |
|
1170 |
if (!copied) {
|
1171 |
break;
|
1172 |
} |
1173 |
} |
1174 |
|
1175 |
return net;
|
1176 |
} |
1177 |
|
1178 |
static int SB_read_DMA (void *opaque, int nchan, int dma_pos, int dma_len) |
1179 |
{ |
1180 |
SB16State *s = opaque; |
1181 |
int till, copy, written, free;
|
1182 |
|
1183 |
if (s->block_size <= 0) { |
1184 |
dolog ("invalid block size=%d nchan=%d dma_pos=%d dma_len=%d\n",
|
1185 |
s->block_size, nchan, dma_pos, dma_len); |
1186 |
return dma_pos;
|
1187 |
} |
1188 |
|
1189 |
if (s->left_till_irq < 0) { |
1190 |
s->left_till_irq = s->block_size; |
1191 |
} |
1192 |
|
1193 |
if (s->voice) {
|
1194 |
free = s->audio_free & ~s->align; |
1195 |
if ((free <= 0) || !dma_len) { |
1196 |
return dma_pos;
|
1197 |
} |
1198 |
} |
1199 |
else {
|
1200 |
free = dma_len; |
1201 |
} |
1202 |
|
1203 |
copy = free; |
1204 |
till = s->left_till_irq; |
1205 |
|
1206 |
#ifdef DEBUG_SB16_MOST
|
1207 |
dolog ("pos:%06d %d till:%d len:%d\n",
|
1208 |
dma_pos, free, till, dma_len); |
1209 |
#endif
|
1210 |
|
1211 |
if (till <= copy) {
|
1212 |
if (0 == s->dma_auto) { |
1213 |
copy = till; |
1214 |
} |
1215 |
} |
1216 |
|
1217 |
written = write_audio (s, nchan, dma_pos, dma_len, copy); |
1218 |
dma_pos = (dma_pos + written) % dma_len; |
1219 |
s->left_till_irq -= written; |
1220 |
|
1221 |
if (s->left_till_irq <= 0) { |
1222 |
s->mixer_regs[0x82] |= (nchan & 4) ? 2 : 1; |
1223 |
qemu_irq_raise (s->pic); |
1224 |
if (0 == s->dma_auto) { |
1225 |
control (s, 0);
|
1226 |
speaker (s, 0);
|
1227 |
} |
1228 |
} |
1229 |
|
1230 |
#ifdef DEBUG_SB16_MOST
|
1231 |
ldebug ("pos %5d free %5d size %5d till % 5d copy %5d written %5d size %5d\n",
|
1232 |
dma_pos, free, dma_len, s->left_till_irq, copy, written, |
1233 |
s->block_size); |
1234 |
#endif
|
1235 |
|
1236 |
while (s->left_till_irq <= 0) { |
1237 |
s->left_till_irq = s->block_size + s->left_till_irq; |
1238 |
} |
1239 |
|
1240 |
return dma_pos;
|
1241 |
} |
1242 |
|
1243 |
static void SB_audio_callback (void *opaque, int free) |
1244 |
{ |
1245 |
SB16State *s = opaque; |
1246 |
s->audio_free = free; |
1247 |
} |
1248 |
|
1249 |
static int sb16_post_load (void *opaque, int version_id) |
1250 |
{ |
1251 |
SB16State *s = opaque; |
1252 |
|
1253 |
if (s->voice) {
|
1254 |
AUD_close_out (&s->card, s->voice); |
1255 |
s->voice = NULL;
|
1256 |
} |
1257 |
|
1258 |
if (s->dma_running) {
|
1259 |
if (s->freq) {
|
1260 |
struct audsettings as;
|
1261 |
|
1262 |
s->audio_free = 0;
|
1263 |
|
1264 |
as.freq = s->freq; |
1265 |
as.nchannels = 1 << s->fmt_stereo;
|
1266 |
as.fmt = s->fmt; |
1267 |
as.endianness = 0;
|
1268 |
|
1269 |
s->voice = AUD_open_out ( |
1270 |
&s->card, |
1271 |
s->voice, |
1272 |
"sb16",
|
1273 |
s, |
1274 |
SB_audio_callback, |
1275 |
&as |
1276 |
); |
1277 |
} |
1278 |
|
1279 |
control (s, 1);
|
1280 |
speaker (s, s->speaker); |
1281 |
} |
1282 |
return 0; |
1283 |
} |
1284 |
|
1285 |
static const VMStateDescription vmstate_sb16 = { |
1286 |
.name = "sb16",
|
1287 |
.version_id = 1,
|
1288 |
.minimum_version_id = 1,
|
1289 |
.minimum_version_id_old = 1,
|
1290 |
.post_load = sb16_post_load, |
1291 |
.fields = (VMStateField []) { |
1292 |
VMSTATE_UINT32 (irq, SB16State), |
1293 |
VMSTATE_UINT32 (dma, SB16State), |
1294 |
VMSTATE_UINT32 (hdma, SB16State), |
1295 |
VMSTATE_UINT32 (port, SB16State), |
1296 |
VMSTATE_UINT32 (ver, SB16State), |
1297 |
VMSTATE_INT32 (in_index, SB16State), |
1298 |
VMSTATE_INT32 (out_data_len, SB16State), |
1299 |
VMSTATE_INT32 (fmt_stereo, SB16State), |
1300 |
VMSTATE_INT32 (fmt_signed, SB16State), |
1301 |
VMSTATE_INT32 (fmt_bits, SB16State), |
1302 |
VMSTATE_UINT32 (fmt, SB16State), |
1303 |
VMSTATE_INT32 (dma_auto, SB16State), |
1304 |
VMSTATE_INT32 (block_size, SB16State), |
1305 |
VMSTATE_INT32 (fifo, SB16State), |
1306 |
VMSTATE_INT32 (freq, SB16State), |
1307 |
VMSTATE_INT32 (time_const, SB16State), |
1308 |
VMSTATE_INT32 (speaker, SB16State), |
1309 |
VMSTATE_INT32 (needed_bytes, SB16State), |
1310 |
VMSTATE_INT32 (cmd, SB16State), |
1311 |
VMSTATE_INT32 (use_hdma, SB16State), |
1312 |
VMSTATE_INT32 (highspeed, SB16State), |
1313 |
VMSTATE_INT32 (can_write, SB16State), |
1314 |
VMSTATE_INT32 (v2x6, SB16State), |
1315 |
|
1316 |
VMSTATE_UINT8 (csp_param, SB16State), |
1317 |
VMSTATE_UINT8 (csp_value, SB16State), |
1318 |
VMSTATE_UINT8 (csp_mode, SB16State), |
1319 |
VMSTATE_UINT8 (csp_param, SB16State), |
1320 |
VMSTATE_BUFFER (csp_regs, SB16State), |
1321 |
VMSTATE_UINT8 (csp_index, SB16State), |
1322 |
VMSTATE_BUFFER (csp_reg83, SB16State), |
1323 |
VMSTATE_INT32 (csp_reg83r, SB16State), |
1324 |
VMSTATE_INT32 (csp_reg83w, SB16State), |
1325 |
|
1326 |
VMSTATE_BUFFER (in2_data, SB16State), |
1327 |
VMSTATE_BUFFER (out_data, SB16State), |
1328 |
VMSTATE_UINT8 (test_reg, SB16State), |
1329 |
VMSTATE_UINT8 (last_read_byte, SB16State), |
1330 |
|
1331 |
VMSTATE_INT32 (nzero, SB16State), |
1332 |
VMSTATE_INT32 (left_till_irq, SB16State), |
1333 |
VMSTATE_INT32 (dma_running, SB16State), |
1334 |
VMSTATE_INT32 (bytes_per_second, SB16State), |
1335 |
VMSTATE_INT32 (align, SB16State), |
1336 |
|
1337 |
VMSTATE_INT32 (mixer_nreg, SB16State), |
1338 |
VMSTATE_BUFFER (mixer_regs, SB16State), |
1339 |
|
1340 |
VMSTATE_END_OF_LIST () |
1341 |
} |
1342 |
}; |
1343 |
|
1344 |
static const MemoryRegionPortio sb16_ioport_list[] = { |
1345 |
{ 4, 1, 1, .write = mixer_write_indexb }, |
1346 |
{ 4, 1, 2, .write = mixer_write_indexw }, |
1347 |
{ 5, 1, 1, .read = mixer_read, .write = mixer_write_datab }, |
1348 |
{ 6, 1, 1, .read = dsp_read, .write = dsp_write }, |
1349 |
{ 10, 1, 1, .read = dsp_read }, |
1350 |
{ 12, 1, 1, .write = dsp_write }, |
1351 |
{ 12, 4, 1, .read = dsp_read }, |
1352 |
PORTIO_END_OF_LIST (), |
1353 |
}; |
1354 |
|
1355 |
|
1356 |
static int sb16_initfn (ISADevice *dev) |
1357 |
{ |
1358 |
SB16State *s; |
1359 |
|
1360 |
s = DO_UPCAST (SB16State, dev, dev); |
1361 |
|
1362 |
s->cmd = -1;
|
1363 |
isa_init_irq (dev, &s->pic, s->irq); |
1364 |
|
1365 |
s->mixer_regs[0x80] = magic_of_irq (s->irq);
|
1366 |
s->mixer_regs[0x81] = (1 << s->dma) | (1 << s->hdma); |
1367 |
s->mixer_regs[0x82] = 2 << 5; |
1368 |
|
1369 |
s->csp_regs[5] = 1; |
1370 |
s->csp_regs[9] = 0xf8; |
1371 |
|
1372 |
reset_mixer (s); |
1373 |
s->aux_ts = qemu_new_timer_ns (vm_clock, aux_timer, s); |
1374 |
if (!s->aux_ts) {
|
1375 |
dolog ("warning: Could not create auxiliary timer\n");
|
1376 |
} |
1377 |
|
1378 |
isa_register_portio_list (dev, s->port, sb16_ioport_list, s, "sb16");
|
1379 |
|
1380 |
DMA_register_channel (s->hdma, SB_read_DMA, s); |
1381 |
DMA_register_channel (s->dma, SB_read_DMA, s); |
1382 |
s->can_write = 1;
|
1383 |
|
1384 |
AUD_register_card ("sb16", &s->card);
|
1385 |
return 0; |
1386 |
} |
1387 |
|
1388 |
int SB16_init (ISABus *bus)
|
1389 |
{ |
1390 |
isa_create_simple (bus, "sb16");
|
1391 |
return 0; |
1392 |
} |
1393 |
|
1394 |
static Property sb16_properties[] = {
|
1395 |
DEFINE_PROP_HEX32 ("version", SB16State, ver, 0x0405), /* 4.5 */ |
1396 |
DEFINE_PROP_HEX32 ("iobase", SB16State, port, 0x220), |
1397 |
DEFINE_PROP_UINT32 ("irq", SB16State, irq, 5), |
1398 |
DEFINE_PROP_UINT32 ("dma", SB16State, dma, 1), |
1399 |
DEFINE_PROP_UINT32 ("dma16", SB16State, hdma, 5), |
1400 |
DEFINE_PROP_END_OF_LIST (), |
1401 |
}; |
1402 |
|
1403 |
static void sb16_class_initfn (ObjectClass *klass, void *data) |
1404 |
{ |
1405 |
DeviceClass *dc = DEVICE_CLASS (klass); |
1406 |
ISADeviceClass *ic = ISA_DEVICE_CLASS (klass); |
1407 |
ic->init = sb16_initfn; |
1408 |
dc->desc = "Creative Sound Blaster 16";
|
1409 |
dc->vmsd = &vmstate_sb16; |
1410 |
dc->props = sb16_properties; |
1411 |
} |
1412 |
|
1413 |
static TypeInfo sb16_info = {
|
1414 |
.name = "sb16",
|
1415 |
.parent = TYPE_ISA_DEVICE, |
1416 |
.instance_size = sizeof (SB16State),
|
1417 |
.class_init = sb16_class_initfn, |
1418 |
}; |
1419 |
|
1420 |
static void sb16_register_types (void) |
1421 |
{ |
1422 |
type_register_static (&sb16_info); |
1423 |
} |
1424 |
|
1425 |
type_init (sb16_register_types) |