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[qemu/ar7.git] / hw / audio / wm8750.c
blobb50b3314024c4c1d28893ffc73fe1600fc85ca7c
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 "hw/hw.h"
11 #include "hw/i2c/i2c.h"
12 #include "audio/audio.h"
13
14 #define IN_PORT_N 3
15 #define OUT_PORT_N 3
16
17 #define CODEC "wm8750"
18
19 typedef struct {
20 int adc;
21 int adc_hz;
22 int dac;
23 int dac_hz;
24 } WMRate;
25
26 #define TYPE_WM8750 "wm8750"
27 #define WM8750(obj) OBJECT_CHECK(WM8750State, (obj), TYPE_WM8750)
28
29 typedef struct WM8750State {
30 I2CSlave parent_obj;
31
32 uint8_t i2c_data[2];
33 int i2c_len;
34 QEMUSoundCard card;
35 SWVoiceIn *adc_voice[IN_PORT_N];
36 SWVoiceOut *dac_voice[OUT_PORT_N];
37 int enable;
38 void (*data_req)(void *, int, int);
39 void *opaque;
40 uint8_t data_in[4096];
41 uint8_t data_out[4096];
42 int idx_in, req_in;
43 int idx_out, req_out;
44
45 SWVoiceOut **out[2];
46 uint8_t outvol[7], outmute[2];
47 SWVoiceIn **in[2];
48 uint8_t invol[4], inmute[2];
49
50 uint8_t diff[2], pol, ds, monomix[2], alc, mute;
51 uint8_t path[4], mpath[2], power, format;
52 const WMRate *rate;
53 uint8_t rate_vmstate;
54 int adc_hz, dac_hz, ext_adc_hz, ext_dac_hz, master;
55 } WM8750State;
56
57 /* pow(10.0, -i / 20.0) * 255, i = 0..42 */
58 static const uint8_t wm8750_vol_db_table[] = {
59 255, 227, 203, 181, 161, 143, 128, 114, 102, 90, 81, 72, 64, 57, 51, 45,
60 40, 36, 32, 29, 26, 23, 20, 18, 16, 14, 13, 11, 10, 9, 8, 7, 6, 6, 5, 5,
61 4, 4, 3, 3, 3, 2, 2
62 };
63
64 #define WM8750_OUTVOL_TRANSFORM(x) wm8750_vol_db_table[(0x7f - x) / 3]
65 #define WM8750_INVOL_TRANSFORM(x) (x << 2)
66
67 static inline void wm8750_in_load(WM8750State *s)
68 {
69 if (s->idx_in + s->req_in <= sizeof(s->data_in))
70 return;
71 s->idx_in = audio_MAX(0, (int) sizeof(s->data_in) - s->req_in);
72 AUD_read(*s->in[0], s->data_in + s->idx_in,
73 sizeof(s->data_in) - s->idx_in);
74 }
75
76 static inline void wm8750_out_flush(WM8750State *s)
77 {
78 int sent = 0;
79 while (sent < s->idx_out)
80 sent += AUD_write(*s->out[0], s->data_out + sent, s->idx_out - sent)
81 ?: s->idx_out;
82 s->idx_out = 0;
83 }
84
85 static void wm8750_audio_in_cb(void *opaque, int avail_b)
86 {
87 WM8750State *s = (WM8750State *) opaque;
88 s->req_in = avail_b;
89 s->data_req(s->opaque, s->req_out >> 2, avail_b >> 2);
90 }
91
92 static void wm8750_audio_out_cb(void *opaque, int free_b)
93 {
94 WM8750State *s = (WM8750State *) opaque;
95
96 if (s->idx_out >= free_b) {
97 s->idx_out = free_b;
98 s->req_out = 0;
99 wm8750_out_flush(s);
100 } else
101 s->req_out = free_b - s->idx_out;
102
103 s->data_req(s->opaque, s->req_out >> 2, s->req_in >> 2);
104 }
105
106 static const WMRate wm_rate_table[] = {
107 { 256, 48000, 256, 48000 }, /* SR: 00000 */
108 { 384, 48000, 384, 48000 }, /* SR: 00001 */
109 { 256, 48000, 1536, 8000 }, /* SR: 00010 */
110 { 384, 48000, 2304, 8000 }, /* SR: 00011 */
111 { 1536, 8000, 256, 48000 }, /* SR: 00100 */
112 { 2304, 8000, 384, 48000 }, /* SR: 00101 */
113 { 1536, 8000, 1536, 8000 }, /* SR: 00110 */
114 { 2304, 8000, 2304, 8000 }, /* SR: 00111 */
115 { 1024, 12000, 1024, 12000 }, /* SR: 01000 */
116 { 1526, 12000, 1536, 12000 }, /* SR: 01001 */
117 { 768, 16000, 768, 16000 }, /* SR: 01010 */
118 { 1152, 16000, 1152, 16000 }, /* SR: 01011 */
119 { 384, 32000, 384, 32000 }, /* SR: 01100 */
120 { 576, 32000, 576, 32000 }, /* SR: 01101 */
121 { 128, 96000, 128, 96000 }, /* SR: 01110 */
122 { 192, 96000, 192, 96000 }, /* SR: 01111 */
123 { 256, 44100, 256, 44100 }, /* SR: 10000 */
124 { 384, 44100, 384, 44100 }, /* SR: 10001 */
125 { 256, 44100, 1408, 8018 }, /* SR: 10010 */
126 { 384, 44100, 2112, 8018 }, /* SR: 10011 */
127 { 1408, 8018, 256, 44100 }, /* SR: 10100 */
128 { 2112, 8018, 384, 44100 }, /* SR: 10101 */
129 { 1408, 8018, 1408, 8018 }, /* SR: 10110 */
130 { 2112, 8018, 2112, 8018 }, /* SR: 10111 */
131 { 1024, 11025, 1024, 11025 }, /* SR: 11000 */
132 { 1536, 11025, 1536, 11025 }, /* SR: 11001 */
133 { 512, 22050, 512, 22050 }, /* SR: 11010 */
134 { 768, 22050, 768, 22050 }, /* SR: 11011 */
135 { 512, 24000, 512, 24000 }, /* SR: 11100 */
136 { 768, 24000, 768, 24000 }, /* SR: 11101 */
137 { 128, 88200, 128, 88200 }, /* SR: 11110 */
138 { 192, 88200, 192, 88200 }, /* SR: 11111 */
139 };
140
141 static void wm8750_vol_update(WM8750State *s)
142 {
143 /* FIXME: multiply all volumes by s->invol[2], s->invol[3] */
144
145 AUD_set_volume_in(s->adc_voice[0], s->mute,
146 s->inmute[0] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[0]),
147 s->inmute[1] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[1]));
148 AUD_set_volume_in(s->adc_voice[1], 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[2], 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
155 /* FIXME: multiply all volumes by s->outvol[0], s->outvol[1] */
156
157 /* Speaker: LOUT2VOL ROUT2VOL */
158 AUD_set_volume_out(s->dac_voice[0], s->mute,
159 s->outmute[0] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[4]),
160 s->outmute[1] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[5]));
161
162 /* Headphone: LOUT1VOL ROUT1VOL */
163 AUD_set_volume_out(s->dac_voice[1], s->mute,
164 s->outmute[0] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[2]),
165 s->outmute[1] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[3]));
166
167 /* MONOOUT: MONOVOL MONOVOL */
168 AUD_set_volume_out(s->dac_voice[2], s->mute,
169 s->outmute[0] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[6]),
170 s->outmute[1] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[6]));
171 }
172
173 static void wm8750_set_format(WM8750State *s)
174 {
175 int i;
176 struct audsettings in_fmt;
177 struct audsettings out_fmt;
178
179 wm8750_out_flush(s);
180
181 if (s->in[0] && *s->in[0])
182 AUD_set_active_in(*s->in[0], 0);
183 if (s->out[0] && *s->out[0])
184 AUD_set_active_out(*s->out[0], 0);
185
186 for (i = 0; i < IN_PORT_N; i ++)
187 if (s->adc_voice[i]) {
188 AUD_close_in(&s->card, s->adc_voice[i]);
189 s->adc_voice[i] = NULL;
190 }
191 for (i = 0; i < OUT_PORT_N; i ++)
192 if (s->dac_voice[i]) {
193 AUD_close_out(&s->card, s->dac_voice[i]);
194 s->dac_voice[i] = NULL;
195 }
196
197 if (!s->enable)
198 return;
199
200 /* Setup input */
201 in_fmt.endianness = 0;
202 in_fmt.nchannels = 2;
203 in_fmt.freq = s->adc_hz;
204 in_fmt.fmt = AUD_FMT_S16;
205
206 s->adc_voice[0] = AUD_open_in(&s->card, s->adc_voice[0],
207 CODEC ".input1", s, wm8750_audio_in_cb, &in_fmt);
208 s->adc_voice[1] = AUD_open_in(&s->card, s->adc_voice[1],
209 CODEC ".input2", s, wm8750_audio_in_cb, &in_fmt);
210 s->adc_voice[2] = AUD_open_in(&s->card, s->adc_voice[2],
211 CODEC ".input3", s, wm8750_audio_in_cb, &in_fmt);
212
213 /* Setup output */
214 out_fmt.endianness = 0;
215 out_fmt.nchannels = 2;
216 out_fmt.freq = s->dac_hz;
217 out_fmt.fmt = AUD_FMT_S16;
218
219 s->dac_voice[0] = AUD_open_out(&s->card, s->dac_voice[0],
220 CODEC ".speaker", s, wm8750_audio_out_cb, &out_fmt);
221 s->dac_voice[1] = AUD_open_out(&s->card, s->dac_voice[1],
222 CODEC ".headphone", s, wm8750_audio_out_cb, &out_fmt);
223 /* MONOMIX is also in stereo for simplicity */
224 s->dac_voice[2] = AUD_open_out(&s->card, s->dac_voice[2],
225 CODEC ".monomix", s, wm8750_audio_out_cb, &out_fmt);
226 /* no sense emulating OUT3 which is a mix of other outputs */
227
228 wm8750_vol_update(s);
229
230 /* We should connect the left and right channels to their
231 * respective inputs/outputs but we have completely no need
232 * for mixing or combining paths to different ports, so we
233 * connect both channels to where the left channel is routed. */
234 if (s->in[0] && *s->in[0])
235 AUD_set_active_in(*s->in[0], 1);
236 if (s->out[0] && *s->out[0])
237 AUD_set_active_out(*s->out[0], 1);
238 }
239
240 static void wm8750_clk_update(WM8750State *s, int ext)
241 {
242 if (s->master || !s->ext_dac_hz)
243 s->dac_hz = s->rate->dac_hz;
244 else
245 s->dac_hz = s->ext_dac_hz;
246
247 if (s->master || !s->ext_adc_hz)
248 s->adc_hz = s->rate->adc_hz;
249 else
250 s->adc_hz = s->ext_adc_hz;
251
252 if (s->master || (!s->ext_dac_hz && !s->ext_adc_hz)) {
253 if (!ext)
254 wm8750_set_format(s);
255 } else {
256 if (ext)
257 wm8750_set_format(s);
258 }
259 }
260
261 static void wm8750_reset(I2CSlave *i2c)
262 {
263 WM8750State *s = WM8750(i2c);
264
265 s->rate = &wm_rate_table[0];
266 s->enable = 0;
267 wm8750_clk_update(s, 1);
268 s->diff[0] = 0;
269 s->diff[1] = 0;
270 s->ds = 0;
271 s->alc = 0;
272 s->in[0] = &s->adc_voice[0];
273 s->invol[0] = 0x17;
274 s->invol[1] = 0x17;
275 s->invol[2] = 0xc3;
276 s->invol[3] = 0xc3;
277 s->out[0] = &s->dac_voice[0];
278 s->outvol[0] = 0xff;
279 s->outvol[1] = 0xff;
280 s->outvol[2] = 0x79;
281 s->outvol[3] = 0x79;
282 s->outvol[4] = 0x79;
283 s->outvol[5] = 0x79;
284 s->outvol[6] = 0x79;
285 s->inmute[0] = 0;
286 s->inmute[1] = 0;
287 s->outmute[0] = 0;
288 s->outmute[1] = 0;
289 s->mute = 1;
290 s->path[0] = 0;
291 s->path[1] = 0;
292 s->path[2] = 0;
293 s->path[3] = 0;
294 s->mpath[0] = 0;
295 s->mpath[1] = 0;
296 s->format = 0x0a;
297 s->idx_in = sizeof(s->data_in);
298 s->req_in = 0;
299 s->idx_out = 0;
300 s->req_out = 0;
301 wm8750_vol_update(s);
302 s->i2c_len = 0;
303 }
304
305 static void wm8750_event(I2CSlave *i2c, enum i2c_event event)
306 {
307 WM8750State *s = WM8750(i2c);
308
309 switch (event) {
310 case I2C_START_SEND:
311 s->i2c_len = 0;
312 break;
313 case I2C_FINISH:
314 #ifdef VERBOSE
315 if (s->i2c_len < 2)
316 printf("%s: message too short (%i bytes)\n",
317 __FUNCTION__, s->i2c_len);
318 #endif
319 break;
320 default:
321 break;
322 }
323 }
324
325 #define WM8750_LINVOL 0x00
326 #define WM8750_RINVOL 0x01
327 #define WM8750_LOUT1V 0x02
328 #define WM8750_ROUT1V 0x03
329 #define WM8750_ADCDAC 0x05
330 #define WM8750_IFACE 0x07
331 #define WM8750_SRATE 0x08
332 #define WM8750_LDAC 0x0a
333 #define WM8750_RDAC 0x0b
334 #define WM8750_BASS 0x0c
335 #define WM8750_TREBLE 0x0d
336 #define WM8750_RESET 0x0f
337 #define WM8750_3D 0x10
338 #define WM8750_ALC1 0x11
339 #define WM8750_ALC2 0x12
340 #define WM8750_ALC3 0x13
341 #define WM8750_NGATE 0x14
342 #define WM8750_LADC 0x15
343 #define WM8750_RADC 0x16
344 #define WM8750_ADCTL1 0x17
345 #define WM8750_ADCTL2 0x18
346 #define WM8750_PWR1 0x19
347 #define WM8750_PWR2 0x1a
348 #define WM8750_ADCTL3 0x1b
349 #define WM8750_ADCIN 0x1f
350 #define WM8750_LADCIN 0x20
351 #define WM8750_RADCIN 0x21
352 #define WM8750_LOUTM1 0x22
353 #define WM8750_LOUTM2 0x23
354 #define WM8750_ROUTM1 0x24
355 #define WM8750_ROUTM2 0x25
356 #define WM8750_MOUTM1 0x26
357 #define WM8750_MOUTM2 0x27
358 #define WM8750_LOUT2V 0x28
359 #define WM8750_ROUT2V 0x29
360 #define WM8750_MOUTV 0x2a
361
362 static int wm8750_tx(I2CSlave *i2c, uint8_t data)
363 {
364 WM8750State *s = WM8750(i2c);
365 uint8_t cmd;
366 uint16_t value;
367
368 if (s->i2c_len >= 2) {
369 #ifdef VERBOSE
370 printf("%s: long message (%i bytes)\n", __func__, s->i2c_len);
371 #endif
372 return 1;
373 }
374 s->i2c_data[s->i2c_len ++] = data;
375 if (s->i2c_len != 2)
376 return 0;
377
378 cmd = s->i2c_data[0] >> 1;
379 value = ((s->i2c_data[0] << 8) | s->i2c_data[1]) & 0x1ff;
380
381 switch (cmd) {
382 case WM8750_LADCIN: /* ADC Signal Path Control (Left) */
383 s->diff[0] = (((value >> 6) & 3) == 3); /* LINSEL */
384 if (s->diff[0])
385 s->in[0] = &s->adc_voice[0 + s->ds * 1];
386 else
387 s->in[0] = &s->adc_voice[((value >> 6) & 3) * 1 + 0];
388 break;
389
390 case WM8750_RADCIN: /* ADC Signal Path Control (Right) */
391 s->diff[1] = (((value >> 6) & 3) == 3); /* RINSEL */
392 if (s->diff[1])
393 s->in[1] = &s->adc_voice[0 + s->ds * 1];
394 else
395 s->in[1] = &s->adc_voice[((value >> 6) & 3) * 1 + 0];
396 break;
397
398 case WM8750_ADCIN: /* ADC Input Mode */
399 s->ds = (value >> 8) & 1; /* DS */
400 if (s->diff[0])
401 s->in[0] = &s->adc_voice[0 + s->ds * 1];
402 if (s->diff[1])
403 s->in[1] = &s->adc_voice[0 + s->ds * 1];
404 s->monomix[0] = (value >> 6) & 3; /* MONOMIX */
405 break;
406
407 case WM8750_ADCTL1: /* Additional Control (1) */
408 s->monomix[1] = (value >> 1) & 1; /* DMONOMIX */
409 break;
410
411 case WM8750_PWR1: /* Power Management (1) */
412 s->enable = ((value >> 6) & 7) == 3; /* VMIDSEL, VREF */
413 wm8750_set_format(s);
414 break;
415
416 case WM8750_LINVOL: /* Left Channel PGA */
417 s->invol[0] = value & 0x3f; /* LINVOL */
418 s->inmute[0] = (value >> 7) & 1; /* LINMUTE */
419 wm8750_vol_update(s);
420 break;
421
422 case WM8750_RINVOL: /* Right Channel PGA */
423 s->invol[1] = value & 0x3f; /* RINVOL */
424 s->inmute[1] = (value >> 7) & 1; /* RINMUTE */
425 wm8750_vol_update(s);
426 break;
427
428 case WM8750_ADCDAC: /* ADC and DAC Control */
429 s->pol = (value >> 5) & 3; /* ADCPOL */
430 s->mute = (value >> 3) & 1; /* DACMU */
431 wm8750_vol_update(s);
432 break;
433
434 case WM8750_ADCTL3: /* Additional Control (3) */
435 break;
436
437 case WM8750_LADC: /* Left ADC Digital Volume */
438 s->invol[2] = value & 0xff; /* LADCVOL */
439 wm8750_vol_update(s);
440 break;
441
442 case WM8750_RADC: /* Right ADC Digital Volume */
443 s->invol[3] = value & 0xff; /* RADCVOL */
444 wm8750_vol_update(s);
445 break;
446
447 case WM8750_ALC1: /* ALC Control (1) */
448 s->alc = (value >> 7) & 3; /* ALCSEL */
449 break;
450
451 case WM8750_NGATE: /* Noise Gate Control */
452 case WM8750_3D: /* 3D enhance */
453 break;
454
455 case WM8750_LDAC: /* Left Channel Digital Volume */
456 s->outvol[0] = value & 0xff; /* LDACVOL */
457 wm8750_vol_update(s);
458 break;
459
460 case WM8750_RDAC: /* Right Channel Digital Volume */
461 s->outvol[1] = value & 0xff; /* RDACVOL */
462 wm8750_vol_update(s);
463 break;
464
465 case WM8750_BASS: /* Bass Control */
466 break;
467
468 case WM8750_LOUTM1: /* Left Mixer Control (1) */
469 s->path[0] = (value >> 8) & 1; /* LD2LO */
470 /* TODO: mute/unmute respective paths */
471 wm8750_vol_update(s);
472 break;
473
474 case WM8750_LOUTM2: /* Left Mixer Control (2) */
475 s->path[1] = (value >> 8) & 1; /* RD2LO */
476 /* TODO: mute/unmute respective paths */
477 wm8750_vol_update(s);
478 break;
479
480 case WM8750_ROUTM1: /* Right Mixer Control (1) */
481 s->path[2] = (value >> 8) & 1; /* LD2RO */
482 /* TODO: mute/unmute respective paths */
483 wm8750_vol_update(s);
484 break;
485
486 case WM8750_ROUTM2: /* Right Mixer Control (2) */
487 s->path[3] = (value >> 8) & 1; /* RD2RO */
488 /* TODO: mute/unmute respective paths */
489 wm8750_vol_update(s);
490 break;
491
492 case WM8750_MOUTM1: /* Mono Mixer Control (1) */
493 s->mpath[0] = (value >> 8) & 1; /* LD2MO */
494 /* TODO: mute/unmute respective paths */
495 wm8750_vol_update(s);
496 break;
497
498 case WM8750_MOUTM2: /* Mono Mixer Control (2) */
499 s->mpath[1] = (value >> 8) & 1; /* RD2MO */
500 /* TODO: mute/unmute respective paths */
501 wm8750_vol_update(s);
502 break;
503
504 case WM8750_LOUT1V: /* LOUT1 Volume */
505 s->outvol[2] = value & 0x7f; /* LOUT1VOL */
506 wm8750_vol_update(s);
507 break;
508
509 case WM8750_LOUT2V: /* LOUT2 Volume */
510 s->outvol[4] = value & 0x7f; /* LOUT2VOL */
511 wm8750_vol_update(s);
512 break;
513
514 case WM8750_ROUT1V: /* ROUT1 Volume */
515 s->outvol[3] = value & 0x7f; /* ROUT1VOL */
516 wm8750_vol_update(s);
517 break;
518
519 case WM8750_ROUT2V: /* ROUT2 Volume */
520 s->outvol[5] = value & 0x7f; /* ROUT2VOL */
521 wm8750_vol_update(s);
522 break;
523
524 case WM8750_MOUTV: /* MONOOUT Volume */
525 s->outvol[6] = value & 0x7f; /* MONOOUTVOL */
526 wm8750_vol_update(s);
527 break;
528
529 case WM8750_ADCTL2: /* Additional Control (2) */
530 break;
531
532 case WM8750_PWR2: /* Power Management (2) */
533 s->power = value & 0x7e;
534 /* TODO: mute/unmute respective paths */
535 wm8750_vol_update(s);
536 break;
537
538 case WM8750_IFACE: /* Digital Audio Interface Format */
539 s->format = value;
540 s->master = (value >> 6) & 1; /* MS */
541 wm8750_clk_update(s, s->master);
542 break;
543
544 case WM8750_SRATE: /* Clocking and Sample Rate Control */
545 s->rate = &wm_rate_table[(value >> 1) & 0x1f];
546 wm8750_clk_update(s, 0);
547 break;
548
549 case WM8750_RESET: /* Reset */
550 wm8750_reset(I2C_SLAVE(s));
551 break;
552
553 #ifdef VERBOSE
554 default:
555 printf("%s: unknown register %02x\n", __FUNCTION__, cmd);
556 #endif
557 }
558
559 return 0;
560 }
561
562 static int wm8750_rx(I2CSlave *i2c)
563 {
564 return 0x00;
565 }
566
567 static void wm8750_pre_save(void *opaque)
568 {
569 WM8750State *s = opaque;
570
571 s->rate_vmstate = s->rate - wm_rate_table;
572 }
573
574 static int wm8750_post_load(void *opaque, int version_id)
575 {
576 WM8750State *s = opaque;
577
578 s->rate = &wm_rate_table[s->rate_vmstate & 0x1f];
579 return 0;
580 }
581
582 static const VMStateDescription vmstate_wm8750 = {
583 .name = CODEC,
584 .version_id = 0,
585 .minimum_version_id = 0,
586 .pre_save = wm8750_pre_save,
587 .post_load = wm8750_post_load,
588 .fields = (VMStateField[]) {
589 VMSTATE_UINT8_ARRAY(i2c_data, WM8750State, 2),
590 VMSTATE_INT32(i2c_len, WM8750State),
591 VMSTATE_INT32(enable, WM8750State),
592 VMSTATE_INT32(idx_in, WM8750State),
593 VMSTATE_INT32(req_in, WM8750State),
594 VMSTATE_INT32(idx_out, WM8750State),
595 VMSTATE_INT32(req_out, WM8750State),
596 VMSTATE_UINT8_ARRAY(outvol, WM8750State, 7),
597 VMSTATE_UINT8_ARRAY(outmute, WM8750State, 2),
598 VMSTATE_UINT8_ARRAY(invol, WM8750State, 4),
599 VMSTATE_UINT8_ARRAY(inmute, WM8750State, 2),
600 VMSTATE_UINT8_ARRAY(diff, WM8750State, 2),
601 VMSTATE_UINT8(pol, WM8750State),
602 VMSTATE_UINT8(ds, WM8750State),
603 VMSTATE_UINT8_ARRAY(monomix, WM8750State, 2),
604 VMSTATE_UINT8(alc, WM8750State),
605 VMSTATE_UINT8(mute, WM8750State),
606 VMSTATE_UINT8_ARRAY(path, WM8750State, 4),
607 VMSTATE_UINT8_ARRAY(mpath, WM8750State, 2),
608 VMSTATE_UINT8(format, WM8750State),
609 VMSTATE_UINT8(power, WM8750State),
610 VMSTATE_UINT8(rate_vmstate, WM8750State),
611 VMSTATE_I2C_SLAVE(parent_obj, WM8750State),
612 VMSTATE_END_OF_LIST()
613 }
614 };
615
616 static int wm8750_init(I2CSlave *i2c)
617 {
618 WM8750State *s = WM8750(i2c);
619
620 AUD_register_card(CODEC, &s->card);
621 wm8750_reset(I2C_SLAVE(s));
622
623 return 0;
624 }
625
626 #if 0
627 static void wm8750_fini(I2CSlave *i2c)
628 {
629 WM8750State *s = WM8750(i2c);
630
631 wm8750_reset(I2C_SLAVE(s));
632 AUD_remove_card(&s->card);
633 g_free(s);
634 }
635 #endif
636
637 void wm8750_data_req_set(DeviceState *dev,
638 void (*data_req)(void *, int, int), void *opaque)
639 {
640 WM8750State *s = WM8750(dev);
641
642 s->data_req = data_req;
643 s->opaque = opaque;
644 }
645
646 void wm8750_dac_dat(void *opaque, uint32_t sample)
647 {
648 WM8750State *s = (WM8750State *) opaque;
649
650 *(uint32_t *) &s->data_out[s->idx_out] = sample;
651 s->req_out -= 4;
652 s->idx_out += 4;
653 if (s->idx_out >= sizeof(s->data_out) || s->req_out <= 0)
654 wm8750_out_flush(s);
655 }
656
657 void *wm8750_dac_buffer(void *opaque, int samples)
658 {
659 WM8750State *s = (WM8750State *) opaque;
660 /* XXX: Should check if there are <i>samples</i> free samples available */
661 void *ret = s->data_out + s->idx_out;
662
663 s->idx_out += samples << 2;
664 s->req_out -= samples << 2;
665 return ret;
666 }
667
668 void wm8750_dac_commit(void *opaque)
669 {
670 WM8750State *s = (WM8750State *) opaque;
671
672 wm8750_out_flush(s);
673 }
674
675 uint32_t wm8750_adc_dat(void *opaque)
676 {
677 WM8750State *s = (WM8750State *) opaque;
678 uint32_t *data;
679
680 if (s->idx_in >= sizeof(s->data_in))
681 wm8750_in_load(s);
682
683 data = (uint32_t *) &s->data_in[s->idx_in];
684 s->req_in -= 4;
685 s->idx_in += 4;
686 return *data;
687 }
688
689 void wm8750_set_bclk_in(void *opaque, int new_hz)
690 {
691 WM8750State *s = (WM8750State *) opaque;
692
693 s->ext_adc_hz = new_hz;
694 s->ext_dac_hz = new_hz;
695 wm8750_clk_update(s, 1);
696 }
697
698 static void wm8750_class_init(ObjectClass *klass, void *data)
699 {
700 DeviceClass *dc = DEVICE_CLASS(klass);
701 I2CSlaveClass *sc = I2C_SLAVE_CLASS(klass);
702
703 sc->init = wm8750_init;
704 sc->event = wm8750_event;
705 sc->recv = wm8750_rx;
706 sc->send = wm8750_tx;
707 dc->vmsd = &vmstate_wm8750;
708 }
709
710 static const TypeInfo wm8750_info = {
711 .name = TYPE_WM8750,
712 .parent = TYPE_I2C_SLAVE,
713 .instance_size = sizeof(WM8750State),
714 .class_init = wm8750_class_init,
715 };
716
717 static void wm8750_register_types(void)
718 {
719 type_register_static(&wm8750_info);
720 }
721
722 type_init(wm8750_register_types)
AR7 emulation for QEMU