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audio: remove unused #define AUDIO_STRINGIFY
[qemu/ar7.git] / hw / audio / wm8750.c
blobb5722b37c36be6e3f2fc036908cbe01331062a3b
1 /*
2 * WM8750 audio CODEC.
3 *
4 * Copyright (c) 2006 Openedhand Ltd.
5 * Written by Andrzej Zaborowski <balrog@zabor.org>
6 *
7 * This file is licensed under GNU GPL.
8 */
9
10 #include "qemu/osdep.h"
11 #include "hw/i2c/i2c.h"
12 #include "migration/vmstate.h"
13 #include "qemu/module.h"
14 #include "hw/audio/wm8750.h"
15 #include "audio/audio.h"
16 #include "qom/object.h"
17
18 #define IN_PORT_N 3
19 #define OUT_PORT_N 3
20
21 #define CODEC "wm8750"
22
23 typedef struct {
24 int adc;
25 int adc_hz;
26 int dac;
27 int dac_hz;
28 } WMRate;
29
30 OBJECT_DECLARE_SIMPLE_TYPE(WM8750State, WM8750)
31
32 struct WM8750State {
33 I2CSlave parent_obj;
34
35 uint8_t i2c_data[2];
36 int i2c_len;
37 QEMUSoundCard card;
38 SWVoiceIn *adc_voice[IN_PORT_N];
39 SWVoiceOut *dac_voice[OUT_PORT_N];
40 int enable;
41 void (*data_req)(void *, int, int);
42 void *opaque;
43 uint8_t data_in[4096];
44 uint8_t data_out[4096];
45 int idx_in, req_in;
46 int idx_out, req_out;
47
48 SWVoiceOut **out[2];
49 uint8_t outvol[7], outmute[2];
50 SWVoiceIn **in[2];
51 uint8_t invol[4], inmute[2];
52
53 uint8_t diff[2], pol, ds, monomix[2], alc, mute;
54 uint8_t path[4], mpath[2], power, format;
55 const WMRate *rate;
56 uint8_t rate_vmstate;
57 int adc_hz, dac_hz, ext_adc_hz, ext_dac_hz, master;
58 };
59
60 /* pow(10.0, -i / 20.0) * 255, i = 0..42 */
61 static const uint8_t wm8750_vol_db_table[] = {
62 255, 227, 203, 181, 161, 143, 128, 114, 102, 90, 81, 72, 64, 57, 51, 45,
63 40, 36, 32, 29, 26, 23, 20, 18, 16, 14, 13, 11, 10, 9, 8, 7, 6, 6, 5, 5,
64 4, 4, 3, 3, 3, 2, 2
65 };
66
67 #define WM8750_OUTVOL_TRANSFORM(x) wm8750_vol_db_table[(0x7f - x) / 3]
68 #define WM8750_INVOL_TRANSFORM(x) (x << 2)
69
70 static inline void wm8750_in_load(WM8750State *s)
71 {
72 if (s->idx_in + s->req_in <= sizeof(s->data_in))
73 return;
74 s->idx_in = MAX(0, (int) sizeof(s->data_in) - s->req_in);
75 AUD_read(*s->in[0], s->data_in + s->idx_in,
76 sizeof(s->data_in) - s->idx_in);
77 }
78
79 static inline void wm8750_out_flush(WM8750State *s)
80 {
81 int sent = 0;
82 while (sent < s->idx_out)
83 sent += AUD_write(*s->out[0], s->data_out + sent, s->idx_out - sent)
84 ?: s->idx_out;
85 s->idx_out = 0;
86 }
87
88 static void wm8750_audio_in_cb(void *opaque, int avail_b)
89 {
90 WM8750State *s = (WM8750State *) opaque;
91 s->req_in = avail_b;
92 s->data_req(s->opaque, s->req_out >> 2, avail_b >> 2);
93 }
94
95 static void wm8750_audio_out_cb(void *opaque, int free_b)
96 {
97 WM8750State *s = (WM8750State *) opaque;
98
99 if (s->idx_out >= free_b) {
100 s->idx_out = free_b;
101 s->req_out = 0;
102 wm8750_out_flush(s);
103 } else
104 s->req_out = free_b - s->idx_out;
105
106 s->data_req(s->opaque, s->req_out >> 2, s->req_in >> 2);
107 }
108
109 static const WMRate wm_rate_table[] = {
110 { 256, 48000, 256, 48000 }, /* SR: 00000 */
111 { 384, 48000, 384, 48000 }, /* SR: 00001 */
112 { 256, 48000, 1536, 8000 }, /* SR: 00010 */
113 { 384, 48000, 2304, 8000 }, /* SR: 00011 */
114 { 1536, 8000, 256, 48000 }, /* SR: 00100 */
115 { 2304, 8000, 384, 48000 }, /* SR: 00101 */
116 { 1536, 8000, 1536, 8000 }, /* SR: 00110 */
117 { 2304, 8000, 2304, 8000 }, /* SR: 00111 */
118 { 1024, 12000, 1024, 12000 }, /* SR: 01000 */
119 { 1526, 12000, 1536, 12000 }, /* SR: 01001 */
120 { 768, 16000, 768, 16000 }, /* SR: 01010 */
121 { 1152, 16000, 1152, 16000 }, /* SR: 01011 */
122 { 384, 32000, 384, 32000 }, /* SR: 01100 */
123 { 576, 32000, 576, 32000 }, /* SR: 01101 */
124 { 128, 96000, 128, 96000 }, /* SR: 01110 */
125 { 192, 96000, 192, 96000 }, /* SR: 01111 */
126 { 256, 44100, 256, 44100 }, /* SR: 10000 */
127 { 384, 44100, 384, 44100 }, /* SR: 10001 */
128 { 256, 44100, 1408, 8018 }, /* SR: 10010 */
129 { 384, 44100, 2112, 8018 }, /* SR: 10011 */
130 { 1408, 8018, 256, 44100 }, /* SR: 10100 */
131 { 2112, 8018, 384, 44100 }, /* SR: 10101 */
132 { 1408, 8018, 1408, 8018 }, /* SR: 10110 */
133 { 2112, 8018, 2112, 8018 }, /* SR: 10111 */
134 { 1024, 11025, 1024, 11025 }, /* SR: 11000 */
135 { 1536, 11025, 1536, 11025 }, /* SR: 11001 */
136 { 512, 22050, 512, 22050 }, /* SR: 11010 */
137 { 768, 22050, 768, 22050 }, /* SR: 11011 */
138 { 512, 24000, 512, 24000 }, /* SR: 11100 */
139 { 768, 24000, 768, 24000 }, /* SR: 11101 */
140 { 128, 88200, 128, 88200 }, /* SR: 11110 */
141 { 192, 88200, 192, 88200 }, /* SR: 11111 */
142 };
143
144 static void wm8750_vol_update(WM8750State *s)
145 {
146 /* FIXME: multiply all volumes by s->invol[2], s->invol[3] */
147
148 AUD_set_volume_in(s->adc_voice[0], s->mute,
149 s->inmute[0] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[0]),
150 s->inmute[1] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[1]));
151 AUD_set_volume_in(s->adc_voice[1], s->mute,
152 s->inmute[0] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[0]),
153 s->inmute[1] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[1]));
154 AUD_set_volume_in(s->adc_voice[2], s->mute,
155 s->inmute[0] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[0]),
156 s->inmute[1] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[1]));
157
158 /* FIXME: multiply all volumes by s->outvol[0], s->outvol[1] */
159
160 /* Speaker: LOUT2VOL ROUT2VOL */
161 AUD_set_volume_out(s->dac_voice[0], s->mute,
162 s->outmute[0] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[4]),
163 s->outmute[1] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[5]));
164
165 /* Headphone: LOUT1VOL ROUT1VOL */
166 AUD_set_volume_out(s->dac_voice[1], s->mute,
167 s->outmute[0] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[2]),
168 s->outmute[1] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[3]));
169
170 /* MONOOUT: MONOVOL MONOVOL */
171 AUD_set_volume_out(s->dac_voice[2], s->mute,
172 s->outmute[0] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[6]),
173 s->outmute[1] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[6]));
174 }
175
176 static void wm8750_set_format(WM8750State *s)
177 {
178 int i;
179 struct audsettings in_fmt;
180 struct audsettings out_fmt;
181
182 wm8750_out_flush(s);
183
184 if (s->in[0] && *s->in[0])
185 AUD_set_active_in(*s->in[0], 0);
186 if (s->out[0] && *s->out[0])
187 AUD_set_active_out(*s->out[0], 0);
188
189 for (i = 0; i < IN_PORT_N; i ++)
190 if (s->adc_voice[i]) {
191 AUD_close_in(&s->card, s->adc_voice[i]);
192 s->adc_voice[i] = NULL;
193 }
194 for (i = 0; i < OUT_PORT_N; i ++)
195 if (s->dac_voice[i]) {
196 AUD_close_out(&s->card, s->dac_voice[i]);
197 s->dac_voice[i] = NULL;
198 }
199
200 if (!s->enable)
201 return;
202
203 /* Setup input */
204 in_fmt.endianness = 0;
205 in_fmt.nchannels = 2;
206 in_fmt.freq = s->adc_hz;
207 in_fmt.fmt = AUDIO_FORMAT_S16;
208
209 s->adc_voice[0] = AUD_open_in(&s->card, s->adc_voice[0],
210 CODEC ".input1", s, wm8750_audio_in_cb, &in_fmt);
211 s->adc_voice[1] = AUD_open_in(&s->card, s->adc_voice[1],
212 CODEC ".input2", s, wm8750_audio_in_cb, &in_fmt);
213 s->adc_voice[2] = AUD_open_in(&s->card, s->adc_voice[2],
214 CODEC ".input3", s, wm8750_audio_in_cb, &in_fmt);
215
216 /* Setup output */
217 out_fmt.endianness = 0;
218 out_fmt.nchannels = 2;
219 out_fmt.freq = s->dac_hz;
220 out_fmt.fmt = AUDIO_FORMAT_S16;
221
222 s->dac_voice[0] = AUD_open_out(&s->card, s->dac_voice[0],
223 CODEC ".speaker", s, wm8750_audio_out_cb, &out_fmt);
224 s->dac_voice[1] = AUD_open_out(&s->card, s->dac_voice[1],
225 CODEC ".headphone", s, wm8750_audio_out_cb, &out_fmt);
226 /* MONOMIX is also in stereo for simplicity */
227 s->dac_voice[2] = AUD_open_out(&s->card, s->dac_voice[2],
228 CODEC ".monomix", s, wm8750_audio_out_cb, &out_fmt);
229 /* no sense emulating OUT3 which is a mix of other outputs */
230
231 wm8750_vol_update(s);
232
233 /* We should connect the left and right channels to their
234 * respective inputs/outputs but we have completely no need
235 * for mixing or combining paths to different ports, so we
236 * connect both channels to where the left channel is routed. */
237 if (s->in[0] && *s->in[0])
238 AUD_set_active_in(*s->in[0], 1);
239 if (s->out[0] && *s->out[0])
240 AUD_set_active_out(*s->out[0], 1);
241 }
242
243 static void wm8750_clk_update(WM8750State *s, int ext)
244 {
245 if (s->master || !s->ext_dac_hz)
246 s->dac_hz = s->rate->dac_hz;
247 else
248 s->dac_hz = s->ext_dac_hz;
249
250 if (s->master || !s->ext_adc_hz)
251 s->adc_hz = s->rate->adc_hz;
252 else
253 s->adc_hz = s->ext_adc_hz;
254
255 if (s->master || (!s->ext_dac_hz && !s->ext_adc_hz)) {
256 if (!ext)
257 wm8750_set_format(s);
258 } else {
259 if (ext)
260 wm8750_set_format(s);
261 }
262 }
263
264 static void wm8750_reset(I2CSlave *i2c)
265 {
266 WM8750State *s = WM8750(i2c);
267
268 s->rate = &wm_rate_table[0];
269 s->enable = 0;
270 wm8750_clk_update(s, 1);
271 s->diff[0] = 0;
272 s->diff[1] = 0;
273 s->ds = 0;
274 s->alc = 0;
275 s->in[0] = &s->adc_voice[0];
276 s->invol[0] = 0x17;
277 s->invol[1] = 0x17;
278 s->invol[2] = 0xc3;
279 s->invol[3] = 0xc3;
280 s->out[0] = &s->dac_voice[0];
281 s->outvol[0] = 0xff;
282 s->outvol[1] = 0xff;
283 s->outvol[2] = 0x79;
284 s->outvol[3] = 0x79;
285 s->outvol[4] = 0x79;
286 s->outvol[5] = 0x79;
287 s->outvol[6] = 0x79;
288 s->inmute[0] = 0;
289 s->inmute[1] = 0;
290 s->outmute[0] = 0;
291 s->outmute[1] = 0;
292 s->mute = 1;
293 s->path[0] = 0;
294 s->path[1] = 0;
295 s->path[2] = 0;
296 s->path[3] = 0;
297 s->mpath[0] = 0;
298 s->mpath[1] = 0;
299 s->format = 0x0a;
300 s->idx_in = sizeof(s->data_in);
301 s->req_in = 0;
302 s->idx_out = 0;
303 s->req_out = 0;
304 wm8750_vol_update(s);
305 s->i2c_len = 0;
306 }
307
308 static int wm8750_event(I2CSlave *i2c, enum i2c_event event)
309 {
310 WM8750State *s = WM8750(i2c);
311
312 switch (event) {
313 case I2C_START_SEND:
314 s->i2c_len = 0;
315 break;
316 case I2C_FINISH:
317 #ifdef VERBOSE
318 if (s->i2c_len < 2)
319 printf("%s: message too short (%i bytes)\n",
320 __func__, s->i2c_len);
321 #endif
322 break;
323 default:
324 break;
325 }
326
327 return 0;
328 }
329
330 #define WM8750_LINVOL 0x00
331 #define WM8750_RINVOL 0x01
332 #define WM8750_LOUT1V 0x02
333 #define WM8750_ROUT1V 0x03
334 #define WM8750_ADCDAC 0x05
335 #define WM8750_IFACE 0x07
336 #define WM8750_SRATE 0x08
337 #define WM8750_LDAC 0x0a
338 #define WM8750_RDAC 0x0b
339 #define WM8750_BASS 0x0c
340 #define WM8750_TREBLE 0x0d
341 #define WM8750_RESET 0x0f
342 #define WM8750_3D 0x10
343 #define WM8750_ALC1 0x11
344 #define WM8750_ALC2 0x12
345 #define WM8750_ALC3 0x13
346 #define WM8750_NGATE 0x14
347 #define WM8750_LADC 0x15
348 #define WM8750_RADC 0x16
349 #define WM8750_ADCTL1 0x17
350 #define WM8750_ADCTL2 0x18
351 #define WM8750_PWR1 0x19
352 #define WM8750_PWR2 0x1a
353 #define WM8750_ADCTL3 0x1b
354 #define WM8750_ADCIN 0x1f
355 #define WM8750_LADCIN 0x20
356 #define WM8750_RADCIN 0x21
357 #define WM8750_LOUTM1 0x22
358 #define WM8750_LOUTM2 0x23
359 #define WM8750_ROUTM1 0x24
360 #define WM8750_ROUTM2 0x25
361 #define WM8750_MOUTM1 0x26
362 #define WM8750_MOUTM2 0x27
363 #define WM8750_LOUT2V 0x28
364 #define WM8750_ROUT2V 0x29
365 #define WM8750_MOUTV 0x2a
366
367 static int wm8750_tx(I2CSlave *i2c, uint8_t data)
368 {
369 WM8750State *s = WM8750(i2c);
370 uint8_t cmd;
371 uint16_t value;
372
373 if (s->i2c_len >= 2) {
374 #ifdef VERBOSE
375 printf("%s: long message (%i bytes)\n", __func__, s->i2c_len);
376 #endif
377 return 1;
378 }
379 s->i2c_data[s->i2c_len ++] = data;
380 if (s->i2c_len != 2)
381 return 0;
382
383 cmd = s->i2c_data[0] >> 1;
384 value = ((s->i2c_data[0] << 8) | s->i2c_data[1]) & 0x1ff;
385
386 switch (cmd) {
387 case WM8750_LADCIN: /* ADC Signal Path Control (Left) */
388 s->diff[0] = (((value >> 6) & 3) == 3); /* LINSEL */
389 if (s->diff[0])
390 s->in[0] = &s->adc_voice[0 + s->ds * 1];
391 else
392 s->in[0] = &s->adc_voice[((value >> 6) & 3) * 1 + 0];
393 break;
394
395 case WM8750_RADCIN: /* ADC Signal Path Control (Right) */
396 s->diff[1] = (((value >> 6) & 3) == 3); /* RINSEL */
397 if (s->diff[1])
398 s->in[1] = &s->adc_voice[0 + s->ds * 1];
399 else
400 s->in[1] = &s->adc_voice[((value >> 6) & 3) * 1 + 0];
401 break;
402
403 case WM8750_ADCIN: /* ADC Input Mode */
404 s->ds = (value >> 8) & 1; /* DS */
405 if (s->diff[0])
406 s->in[0] = &s->adc_voice[0 + s->ds * 1];
407 if (s->diff[1])
408 s->in[1] = &s->adc_voice[0 + s->ds * 1];
409 s->monomix[0] = (value >> 6) & 3; /* MONOMIX */
410 break;
411
412 case WM8750_ADCTL1: /* Additional Control (1) */
413 s->monomix[1] = (value >> 1) & 1; /* DMONOMIX */
414 break;
415
416 case WM8750_PWR1: /* Power Management (1) */
417 s->enable = ((value >> 6) & 7) == 3; /* VMIDSEL, VREF */
418 wm8750_set_format(s);
419 break;
420
421 case WM8750_LINVOL: /* Left Channel PGA */
422 s->invol[0] = value & 0x3f; /* LINVOL */
423 s->inmute[0] = (value >> 7) & 1; /* LINMUTE */
424 wm8750_vol_update(s);
425 break;
426
427 case WM8750_RINVOL: /* Right Channel PGA */
428 s->invol[1] = value & 0x3f; /* RINVOL */
429 s->inmute[1] = (value >> 7) & 1; /* RINMUTE */
430 wm8750_vol_update(s);
431 break;
432
433 case WM8750_ADCDAC: /* ADC and DAC Control */
434 s->pol = (value >> 5) & 3; /* ADCPOL */
435 s->mute = (value >> 3) & 1; /* DACMU */
436 wm8750_vol_update(s);
437 break;
438
439 case WM8750_ADCTL3: /* Additional Control (3) */
440 break;
441
442 case WM8750_LADC: /* Left ADC Digital Volume */
443 s->invol[2] = value & 0xff; /* LADCVOL */
444 wm8750_vol_update(s);
445 break;
446
447 case WM8750_RADC: /* Right ADC Digital Volume */
448 s->invol[3] = value & 0xff; /* RADCVOL */
449 wm8750_vol_update(s);
450 break;
451
452 case WM8750_ALC1: /* ALC Control (1) */
453 s->alc = (value >> 7) & 3; /* ALCSEL */
454 break;
455
456 case WM8750_NGATE: /* Noise Gate Control */
457 case WM8750_3D: /* 3D enhance */
458 break;
459
460 case WM8750_LDAC: /* Left Channel Digital Volume */
461 s->outvol[0] = value & 0xff; /* LDACVOL */
462 wm8750_vol_update(s);
463 break;
464
465 case WM8750_RDAC: /* Right Channel Digital Volume */
466 s->outvol[1] = value & 0xff; /* RDACVOL */
467 wm8750_vol_update(s);
468 break;
469
470 case WM8750_BASS: /* Bass Control */
471 break;
472
473 case WM8750_LOUTM1: /* Left Mixer Control (1) */
474 s->path[0] = (value >> 8) & 1; /* LD2LO */
475 /* TODO: mute/unmute respective paths */
476 wm8750_vol_update(s);
477 break;
478
479 case WM8750_LOUTM2: /* Left Mixer Control (2) */
480 s->path[1] = (value >> 8) & 1; /* RD2LO */
481 /* TODO: mute/unmute respective paths */
482 wm8750_vol_update(s);
483 break;
484
485 case WM8750_ROUTM1: /* Right Mixer Control (1) */
486 s->path[2] = (value >> 8) & 1; /* LD2RO */
487 /* TODO: mute/unmute respective paths */
488 wm8750_vol_update(s);
489 break;
490
491 case WM8750_ROUTM2: /* Right Mixer Control (2) */
492 s->path[3] = (value >> 8) & 1; /* RD2RO */
493 /* TODO: mute/unmute respective paths */
494 wm8750_vol_update(s);
495 break;
496
497 case WM8750_MOUTM1: /* Mono Mixer Control (1) */
498 s->mpath[0] = (value >> 8) & 1; /* LD2MO */
499 /* TODO: mute/unmute respective paths */
500 wm8750_vol_update(s);
501 break;
502
503 case WM8750_MOUTM2: /* Mono Mixer Control (2) */
504 s->mpath[1] = (value >> 8) & 1; /* RD2MO */
505 /* TODO: mute/unmute respective paths */
506 wm8750_vol_update(s);
507 break;
508
509 case WM8750_LOUT1V: /* LOUT1 Volume */
510 s->outvol[2] = value & 0x7f; /* LOUT1VOL */
511 wm8750_vol_update(s);
512 break;
513
514 case WM8750_LOUT2V: /* LOUT2 Volume */
515 s->outvol[4] = value & 0x7f; /* LOUT2VOL */
516 wm8750_vol_update(s);
517 break;
518
519 case WM8750_ROUT1V: /* ROUT1 Volume */
520 s->outvol[3] = value & 0x7f; /* ROUT1VOL */
521 wm8750_vol_update(s);
522 break;
523
524 case WM8750_ROUT2V: /* ROUT2 Volume */
525 s->outvol[5] = value & 0x7f; /* ROUT2VOL */
526 wm8750_vol_update(s);
527 break;
528
529 case WM8750_MOUTV: /* MONOOUT Volume */
530 s->outvol[6] = value & 0x7f; /* MONOOUTVOL */
531 wm8750_vol_update(s);
532 break;
533
534 case WM8750_ADCTL2: /* Additional Control (2) */
535 break;
536
537 case WM8750_PWR2: /* Power Management (2) */
538 s->power = value & 0x7e;
539 /* TODO: mute/unmute respective paths */
540 wm8750_vol_update(s);
541 break;
542
543 case WM8750_IFACE: /* Digital Audio Interface Format */
544 s->format = value;
545 s->master = (value >> 6) & 1; /* MS */
546 wm8750_clk_update(s, s->master);
547 break;
548
549 case WM8750_SRATE: /* Clocking and Sample Rate Control */
550 s->rate = &wm_rate_table[(value >> 1) & 0x1f];
551 wm8750_clk_update(s, 0);
552 break;
553
554 case WM8750_RESET: /* Reset */
555 wm8750_reset(I2C_SLAVE(s));
556 break;
557
558 #ifdef VERBOSE
559 default:
560 printf("%s: unknown register %02x\n", __func__, cmd);
561 #endif
562 }
563
564 return 0;
565 }
566
567 static uint8_t wm8750_rx(I2CSlave *i2c)
568 {
569 return 0x00;
570 }
571
572 static int wm8750_pre_save(void *opaque)
573 {
574 WM8750State *s = opaque;
575
576 s->rate_vmstate = s->rate - wm_rate_table;
577
578 return 0;
579 }
580
581 static int wm8750_post_load(void *opaque, int version_id)
582 {
583 WM8750State *s = opaque;
584
585 s->rate = &wm_rate_table[s->rate_vmstate & 0x1f];
586 return 0;
587 }
588
589 static const VMStateDescription vmstate_wm8750 = {
590 .name = CODEC,
591 .version_id = 0,
592 .minimum_version_id = 0,
593 .pre_save = wm8750_pre_save,
594 .post_load = wm8750_post_load,
595 .fields = (VMStateField[]) {
596 VMSTATE_UINT8_ARRAY(i2c_data, WM8750State, 2),
597 VMSTATE_INT32(i2c_len, WM8750State),
598 VMSTATE_INT32(enable, WM8750State),
599 VMSTATE_INT32(idx_in, WM8750State),
600 VMSTATE_INT32(req_in, WM8750State),
601 VMSTATE_INT32(idx_out, WM8750State),
602 VMSTATE_INT32(req_out, WM8750State),
603 VMSTATE_UINT8_ARRAY(outvol, WM8750State, 7),
604 VMSTATE_UINT8_ARRAY(outmute, WM8750State, 2),
605 VMSTATE_UINT8_ARRAY(invol, WM8750State, 4),
606 VMSTATE_UINT8_ARRAY(inmute, WM8750State, 2),
607 VMSTATE_UINT8_ARRAY(diff, WM8750State, 2),
608 VMSTATE_UINT8(pol, WM8750State),
609 VMSTATE_UINT8(ds, WM8750State),
610 VMSTATE_UINT8_ARRAY(monomix, WM8750State, 2),
611 VMSTATE_UINT8(alc, WM8750State),
612 VMSTATE_UINT8(mute, WM8750State),
613 VMSTATE_UINT8_ARRAY(path, WM8750State, 4),
614 VMSTATE_UINT8_ARRAY(mpath, WM8750State, 2),
615 VMSTATE_UINT8(format, WM8750State),
616 VMSTATE_UINT8(power, WM8750State),
617 VMSTATE_UINT8(rate_vmstate, WM8750State),
618 VMSTATE_I2C_SLAVE(parent_obj, WM8750State),
619 VMSTATE_END_OF_LIST()
620 }
621 };
622
623 static void wm8750_realize(DeviceState *dev, Error **errp)
624 {
625 WM8750State *s = WM8750(dev);
626
627 AUD_register_card(CODEC, &s->card);
628 wm8750_reset(I2C_SLAVE(s));
629 }
630
631 #if 0
632 static void wm8750_fini(I2CSlave *i2c)
633 {
634 WM8750State *s = WM8750(i2c);
635
636 wm8750_reset(I2C_SLAVE(s));
637 AUD_remove_card(&s->card);
638 g_free(s);
639 }
640 #endif
641
642 void wm8750_data_req_set(DeviceState *dev, data_req_cb *data_req, void *opaque)
643 {
644 WM8750State *s = WM8750(dev);
645
646 s->data_req = data_req;
647 s->opaque = opaque;
648 }
649
650 void wm8750_dac_dat(void *opaque, uint32_t sample)
651 {
652 WM8750State *s = (WM8750State *) opaque;
653
654 *(uint32_t *) &s->data_out[s->idx_out] = sample;
655 s->req_out -= 4;
656 s->idx_out += 4;
657 if (s->idx_out >= sizeof(s->data_out) || s->req_out <= 0)
658 wm8750_out_flush(s);
659 }
660
661 void *wm8750_dac_buffer(void *opaque, int samples)
662 {
663 WM8750State *s = (WM8750State *) opaque;
664 /* XXX: Should check if there are <i>samples</i> free samples available */
665 void *ret = s->data_out + s->idx_out;
666
667 s->idx_out += samples << 2;
668 s->req_out -= samples << 2;
669 return ret;
670 }
671
672 void wm8750_dac_commit(void *opaque)
673 {
674 WM8750State *s = (WM8750State *) opaque;
675
676 wm8750_out_flush(s);
677 }
678
679 uint32_t wm8750_adc_dat(void *opaque)
680 {
681 WM8750State *s = (WM8750State *) opaque;
682 uint32_t *data;
683
684 if (s->idx_in >= sizeof(s->data_in)) {
685 wm8750_in_load(s);
686 if (s->idx_in >= sizeof(s->data_in)) {
687 return 0x80008000; /* silence in AUDIO_FORMAT_S16 sample format */
688 }
689 }
690
691 data = (uint32_t *) &s->data_in[s->idx_in];
692 s->req_in -= 4;
693 s->idx_in += 4;
694 return *data;
695 }
696
697 void wm8750_set_bclk_in(void *opaque, int new_hz)
698 {
699 WM8750State *s = (WM8750State *) opaque;
700
701 s->ext_adc_hz = new_hz;
702 s->ext_dac_hz = new_hz;
703 wm8750_clk_update(s, 1);
704 }
705
706 static Property wm8750_properties[] = {
707 DEFINE_AUDIO_PROPERTIES(WM8750State, card),
708 DEFINE_PROP_END_OF_LIST(),
709 };
710
711 static void wm8750_class_init(ObjectClass *klass, void *data)
712 {
713 DeviceClass *dc = DEVICE_CLASS(klass);
714 I2CSlaveClass *sc = I2C_SLAVE_CLASS(klass);
715
716 dc->realize = wm8750_realize;
717 sc->event = wm8750_event;
718 sc->recv = wm8750_rx;
719 sc->send = wm8750_tx;
720 dc->vmsd = &vmstate_wm8750;
721 device_class_set_props(dc, wm8750_properties);
722 }
723
724 static const TypeInfo wm8750_info = {
725 .name = TYPE_WM8750,
726 .parent = TYPE_I2C_SLAVE,
727 .instance_size = sizeof(WM8750State),
728 .class_init = wm8750_class_init,
729 };
730
731 static void wm8750_register_types(void)
732 {
733 type_register_static(&wm8750_info);
734 }
735
736 type_init(wm8750_register_types)
AR7 emulation for QEMU