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target/arm: make pmccntr_op_start/finish static
[qemu/ar7.git] / hw / audio / wm8750.c
blobca0ad73caf7d816e761bd342aa53b75706078dca
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 "hw/audio/wm8750.h"
13 #include "audio/audio.h"
14
15 #define IN_PORT_N 3
16 #define OUT_PORT_N 3
17
18 #define CODEC "wm8750"
19
20 typedef struct {
21 int adc;
22 int adc_hz;
23 int dac;
24 int dac_hz;
25 } WMRate;
26
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 = AUDIO_FORMAT_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 = AUDIO_FORMAT_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 int 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 __func__, s->i2c_len);
318 #endif
319 break;
320 default:
321 break;
322 }
323
324 return 0;
325 }
326
327 #define WM8750_LINVOL 0x00
328 #define WM8750_RINVOL 0x01
329 #define WM8750_LOUT1V 0x02
330 #define WM8750_ROUT1V 0x03
331 #define WM8750_ADCDAC 0x05
332 #define WM8750_IFACE 0x07
333 #define WM8750_SRATE 0x08
334 #define WM8750_LDAC 0x0a
335 #define WM8750_RDAC 0x0b
336 #define WM8750_BASS 0x0c
337 #define WM8750_TREBLE 0x0d
338 #define WM8750_RESET 0x0f
339 #define WM8750_3D 0x10
340 #define WM8750_ALC1 0x11
341 #define WM8750_ALC2 0x12
342 #define WM8750_ALC3 0x13
343 #define WM8750_NGATE 0x14
344 #define WM8750_LADC 0x15
345 #define WM8750_RADC 0x16
346 #define WM8750_ADCTL1 0x17
347 #define WM8750_ADCTL2 0x18
348 #define WM8750_PWR1 0x19
349 #define WM8750_PWR2 0x1a
350 #define WM8750_ADCTL3 0x1b
351 #define WM8750_ADCIN 0x1f
352 #define WM8750_LADCIN 0x20
353 #define WM8750_RADCIN 0x21
354 #define WM8750_LOUTM1 0x22
355 #define WM8750_LOUTM2 0x23
356 #define WM8750_ROUTM1 0x24
357 #define WM8750_ROUTM2 0x25
358 #define WM8750_MOUTM1 0x26
359 #define WM8750_MOUTM2 0x27
360 #define WM8750_LOUT2V 0x28
361 #define WM8750_ROUT2V 0x29
362 #define WM8750_MOUTV 0x2a
363
364 static int wm8750_tx(I2CSlave *i2c, uint8_t data)
365 {
366 WM8750State *s = WM8750(i2c);
367 uint8_t cmd;
368 uint16_t value;
369
370 if (s->i2c_len >= 2) {
371 #ifdef VERBOSE
372 printf("%s: long message (%i bytes)\n", __func__, s->i2c_len);
373 #endif
374 return 1;
375 }
376 s->i2c_data[s->i2c_len ++] = data;
377 if (s->i2c_len != 2)
378 return 0;
379
380 cmd = s->i2c_data[0] >> 1;
381 value = ((s->i2c_data[0] << 8) | s->i2c_data[1]) & 0x1ff;
382
383 switch (cmd) {
384 case WM8750_LADCIN: /* ADC Signal Path Control (Left) */
385 s->diff[0] = (((value >> 6) & 3) == 3); /* LINSEL */
386 if (s->diff[0])
387 s->in[0] = &s->adc_voice[0 + s->ds * 1];
388 else
389 s->in[0] = &s->adc_voice[((value >> 6) & 3) * 1 + 0];
390 break;
391
392 case WM8750_RADCIN: /* ADC Signal Path Control (Right) */
393 s->diff[1] = (((value >> 6) & 3) == 3); /* RINSEL */
394 if (s->diff[1])
395 s->in[1] = &s->adc_voice[0 + s->ds * 1];
396 else
397 s->in[1] = &s->adc_voice[((value >> 6) & 3) * 1 + 0];
398 break;
399
400 case WM8750_ADCIN: /* ADC Input Mode */
401 s->ds = (value >> 8) & 1; /* DS */
402 if (s->diff[0])
403 s->in[0] = &s->adc_voice[0 + s->ds * 1];
404 if (s->diff[1])
405 s->in[1] = &s->adc_voice[0 + s->ds * 1];
406 s->monomix[0] = (value >> 6) & 3; /* MONOMIX */
407 break;
408
409 case WM8750_ADCTL1: /* Additional Control (1) */
410 s->monomix[1] = (value >> 1) & 1; /* DMONOMIX */
411 break;
412
413 case WM8750_PWR1: /* Power Management (1) */
414 s->enable = ((value >> 6) & 7) == 3; /* VMIDSEL, VREF */
415 wm8750_set_format(s);
416 break;
417
418 case WM8750_LINVOL: /* Left Channel PGA */
419 s->invol[0] = value & 0x3f; /* LINVOL */
420 s->inmute[0] = (value >> 7) & 1; /* LINMUTE */
421 wm8750_vol_update(s);
422 break;
423
424 case WM8750_RINVOL: /* Right Channel PGA */
425 s->invol[1] = value & 0x3f; /* RINVOL */
426 s->inmute[1] = (value >> 7) & 1; /* RINMUTE */
427 wm8750_vol_update(s);
428 break;
429
430 case WM8750_ADCDAC: /* ADC and DAC Control */
431 s->pol = (value >> 5) & 3; /* ADCPOL */
432 s->mute = (value >> 3) & 1; /* DACMU */
433 wm8750_vol_update(s);
434 break;
435
436 case WM8750_ADCTL3: /* Additional Control (3) */
437 break;
438
439 case WM8750_LADC: /* Left ADC Digital Volume */
440 s->invol[2] = value & 0xff; /* LADCVOL */
441 wm8750_vol_update(s);
442 break;
443
444 case WM8750_RADC: /* Right ADC Digital Volume */
445 s->invol[3] = value & 0xff; /* RADCVOL */
446 wm8750_vol_update(s);
447 break;
448
449 case WM8750_ALC1: /* ALC Control (1) */
450 s->alc = (value >> 7) & 3; /* ALCSEL */
451 break;
452
453 case WM8750_NGATE: /* Noise Gate Control */
454 case WM8750_3D: /* 3D enhance */
455 break;
456
457 case WM8750_LDAC: /* Left Channel Digital Volume */
458 s->outvol[0] = value & 0xff; /* LDACVOL */
459 wm8750_vol_update(s);
460 break;
461
462 case WM8750_RDAC: /* Right Channel Digital Volume */
463 s->outvol[1] = value & 0xff; /* RDACVOL */
464 wm8750_vol_update(s);
465 break;
466
467 case WM8750_BASS: /* Bass Control */
468 break;
469
470 case WM8750_LOUTM1: /* Left Mixer Control (1) */
471 s->path[0] = (value >> 8) & 1; /* LD2LO */
472 /* TODO: mute/unmute respective paths */
473 wm8750_vol_update(s);
474 break;
475
476 case WM8750_LOUTM2: /* Left Mixer Control (2) */
477 s->path[1] = (value >> 8) & 1; /* RD2LO */
478 /* TODO: mute/unmute respective paths */
479 wm8750_vol_update(s);
480 break;
481
482 case WM8750_ROUTM1: /* Right Mixer Control (1) */
483 s->path[2] = (value >> 8) & 1; /* LD2RO */
484 /* TODO: mute/unmute respective paths */
485 wm8750_vol_update(s);
486 break;
487
488 case WM8750_ROUTM2: /* Right Mixer Control (2) */
489 s->path[3] = (value >> 8) & 1; /* RD2RO */
490 /* TODO: mute/unmute respective paths */
491 wm8750_vol_update(s);
492 break;
493
494 case WM8750_MOUTM1: /* Mono Mixer Control (1) */
495 s->mpath[0] = (value >> 8) & 1; /* LD2MO */
496 /* TODO: mute/unmute respective paths */
497 wm8750_vol_update(s);
498 break;
499
500 case WM8750_MOUTM2: /* Mono Mixer Control (2) */
501 s->mpath[1] = (value >> 8) & 1; /* RD2MO */
502 /* TODO: mute/unmute respective paths */
503 wm8750_vol_update(s);
504 break;
505
506 case WM8750_LOUT1V: /* LOUT1 Volume */
507 s->outvol[2] = value & 0x7f; /* LOUT1VOL */
508 wm8750_vol_update(s);
509 break;
510
511 case WM8750_LOUT2V: /* LOUT2 Volume */
512 s->outvol[4] = value & 0x7f; /* LOUT2VOL */
513 wm8750_vol_update(s);
514 break;
515
516 case WM8750_ROUT1V: /* ROUT1 Volume */
517 s->outvol[3] = value & 0x7f; /* ROUT1VOL */
518 wm8750_vol_update(s);
519 break;
520
521 case WM8750_ROUT2V: /* ROUT2 Volume */
522 s->outvol[5] = value & 0x7f; /* ROUT2VOL */
523 wm8750_vol_update(s);
524 break;
525
526 case WM8750_MOUTV: /* MONOOUT Volume */
527 s->outvol[6] = value & 0x7f; /* MONOOUTVOL */
528 wm8750_vol_update(s);
529 break;
530
531 case WM8750_ADCTL2: /* Additional Control (2) */
532 break;
533
534 case WM8750_PWR2: /* Power Management (2) */
535 s->power = value & 0x7e;
536 /* TODO: mute/unmute respective paths */
537 wm8750_vol_update(s);
538 break;
539
540 case WM8750_IFACE: /* Digital Audio Interface Format */
541 s->format = value;
542 s->master = (value >> 6) & 1; /* MS */
543 wm8750_clk_update(s, s->master);
544 break;
545
546 case WM8750_SRATE: /* Clocking and Sample Rate Control */
547 s->rate = &wm_rate_table[(value >> 1) & 0x1f];
548 wm8750_clk_update(s, 0);
549 break;
550
551 case WM8750_RESET: /* Reset */
552 wm8750_reset(I2C_SLAVE(s));
553 break;
554
555 #ifdef VERBOSE
556 default:
557 printf("%s: unknown register %02x\n", __func__, cmd);
558 #endif
559 }
560
561 return 0;
562 }
563
564 static uint8_t wm8750_rx(I2CSlave *i2c)
565 {
566 return 0x00;
567 }
568
569 static int wm8750_pre_save(void *opaque)
570 {
571 WM8750State *s = opaque;
572
573 s->rate_vmstate = s->rate - wm_rate_table;
574
575 return 0;
576 }
577
578 static int wm8750_post_load(void *opaque, int version_id)
579 {
580 WM8750State *s = opaque;
581
582 s->rate = &wm_rate_table[s->rate_vmstate & 0x1f];
583 return 0;
584 }
585
586 static const VMStateDescription vmstate_wm8750 = {
587 .name = CODEC,
588 .version_id = 0,
589 .minimum_version_id = 0,
590 .pre_save = wm8750_pre_save,
591 .post_load = wm8750_post_load,
592 .fields = (VMStateField[]) {
593 VMSTATE_UINT8_ARRAY(i2c_data, WM8750State, 2),
594 VMSTATE_INT32(i2c_len, WM8750State),
595 VMSTATE_INT32(enable, WM8750State),
596 VMSTATE_INT32(idx_in, WM8750State),
597 VMSTATE_INT32(req_in, WM8750State),
598 VMSTATE_INT32(idx_out, WM8750State),
599 VMSTATE_INT32(req_out, WM8750State),
600 VMSTATE_UINT8_ARRAY(outvol, WM8750State, 7),
601 VMSTATE_UINT8_ARRAY(outmute, WM8750State, 2),
602 VMSTATE_UINT8_ARRAY(invol, WM8750State, 4),
603 VMSTATE_UINT8_ARRAY(inmute, WM8750State, 2),
604 VMSTATE_UINT8_ARRAY(diff, WM8750State, 2),
605 VMSTATE_UINT8(pol, WM8750State),
606 VMSTATE_UINT8(ds, WM8750State),
607 VMSTATE_UINT8_ARRAY(monomix, WM8750State, 2),
608 VMSTATE_UINT8(alc, WM8750State),
609 VMSTATE_UINT8(mute, WM8750State),
610 VMSTATE_UINT8_ARRAY(path, WM8750State, 4),
611 VMSTATE_UINT8_ARRAY(mpath, WM8750State, 2),
612 VMSTATE_UINT8(format, WM8750State),
613 VMSTATE_UINT8(power, WM8750State),
614 VMSTATE_UINT8(rate_vmstate, WM8750State),
615 VMSTATE_I2C_SLAVE(parent_obj, WM8750State),
616 VMSTATE_END_OF_LIST()
617 }
618 };
619
620 static void wm8750_realize(DeviceState *dev, Error **errp)
621 {
622 WM8750State *s = WM8750(dev);
623
624 AUD_register_card(CODEC, &s->card);
625 wm8750_reset(I2C_SLAVE(s));
626 }
627
628 #if 0
629 static void wm8750_fini(I2CSlave *i2c)
630 {
631 WM8750State *s = WM8750(i2c);
632
633 wm8750_reset(I2C_SLAVE(s));
634 AUD_remove_card(&s->card);
635 g_free(s);
636 }
637 #endif
638
639 void wm8750_data_req_set(DeviceState *dev, data_req_cb *data_req, void *opaque)
640 {
641 WM8750State *s = WM8750(dev);
642
643 s->data_req = data_req;
644 s->opaque = opaque;
645 }
646
647 void wm8750_dac_dat(void *opaque, uint32_t sample)
648 {
649 WM8750State *s = (WM8750State *) opaque;
650
651 *(uint32_t *) &s->data_out[s->idx_out] = sample;
652 s->req_out -= 4;
653 s->idx_out += 4;
654 if (s->idx_out >= sizeof(s->data_out) || s->req_out <= 0)
655 wm8750_out_flush(s);
656 }
657
658 void *wm8750_dac_buffer(void *opaque, int samples)
659 {
660 WM8750State *s = (WM8750State *) opaque;
661 /* XXX: Should check if there are <i>samples</i> free samples available */
662 void *ret = s->data_out + s->idx_out;
663
664 s->idx_out += samples << 2;
665 s->req_out -= samples << 2;
666 return ret;
667 }
668
669 void wm8750_dac_commit(void *opaque)
670 {
671 WM8750State *s = (WM8750State *) opaque;
672
673 wm8750_out_flush(s);
674 }
675
676 uint32_t wm8750_adc_dat(void *opaque)
677 {
678 WM8750State *s = (WM8750State *) opaque;
679 uint32_t *data;
680
681 if (s->idx_in >= sizeof(s->data_in)) {
682 wm8750_in_load(s);
683 if (s->idx_in >= sizeof(s->data_in)) {
684 return 0x80008000; /* silence in AUDIO_FORMAT_S16 sample format */
685 }
686 }
687
688 data = (uint32_t *) &s->data_in[s->idx_in];
689 s->req_in -= 4;
690 s->idx_in += 4;
691 return *data;
692 }
693
694 void wm8750_set_bclk_in(void *opaque, int new_hz)
695 {
696 WM8750State *s = (WM8750State *) opaque;
697
698 s->ext_adc_hz = new_hz;
699 s->ext_dac_hz = new_hz;
700 wm8750_clk_update(s, 1);
701 }
702
703 static void wm8750_class_init(ObjectClass *klass, void *data)
704 {
705 DeviceClass *dc = DEVICE_CLASS(klass);
706 I2CSlaveClass *sc = I2C_SLAVE_CLASS(klass);
707
708 dc->realize = wm8750_realize;
709 sc->event = wm8750_event;
710 sc->recv = wm8750_rx;
711 sc->send = wm8750_tx;
712 dc->vmsd = &vmstate_wm8750;
713 }
714
715 static const TypeInfo wm8750_info = {
716 .name = TYPE_WM8750,
717 .parent = TYPE_I2C_SLAVE,
718 .instance_size = sizeof(WM8750State),
719 .class_init = wm8750_class_init,
720 };
721
722 static void wm8750_register_types(void)
723 {
724 type_register_static(&wm8750_info);
725 }
726
727 type_init(wm8750_register_types)
AR7 emulation for QEMU