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[qemu/mini2440.git] / hw / wm8750.c
blob9f5bd46de42ccebed15d896c510cdfabf89ff14b
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.h"
11 #include "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 typedef struct {
27 i2c_slave i2c;
28 uint8_t i2c_data[2];
29 int i2c_len;
30 QEMUSoundCard card;
31 SWVoiceIn *adc_voice[IN_PORT_N];
32 SWVoiceOut *dac_voice[OUT_PORT_N];
33 int enable;
34 void (*data_req)(void *, int, int);
35 void *opaque;
36 uint8_t data_in[4096];
37 uint8_t data_out[4096];
38 int idx_in, req_in;
39 int idx_out, req_out;
40
41 SWVoiceOut **out[2];
42 uint8_t outvol[7], outmute[2];
43 SWVoiceIn **in[2];
44 uint8_t invol[4], inmute[2];
45
46 uint8_t diff[2], pol, ds, monomix[2], alc, mute;
47 uint8_t path[4], mpath[2], power, format;
48 const WMRate *rate;
49 int adc_hz, dac_hz, ext_adc_hz, ext_dac_hz, master;
50 } WM8750State;
51
52 /* pow(10.0, -i / 20.0) * 255, i = 0..42 */
53 static const uint8_t wm8750_vol_db_table[] = {
54 255, 227, 203, 181, 161, 143, 128, 114, 102, 90, 81, 72, 64, 57, 51, 45,
55 40, 36, 32, 29, 26, 23, 20, 18, 16, 14, 13, 11, 10, 9, 8, 7, 6, 6, 5, 5,
56 4, 4, 3, 3, 3, 2, 2
57 };
58
59 #define WM8750_OUTVOL_TRANSFORM(x) wm8750_vol_db_table[(0x7f - x) / 3]
60 #define WM8750_INVOL_TRANSFORM(x) (x << 2)
61
62 static inline void wm8750_in_load(WM8750State *s)
63 {
64 int acquired;
65 if (s->idx_in + s->req_in <= sizeof(s->data_in))
66 return;
67 s->idx_in = audio_MAX(0, (int) sizeof(s->data_in) - s->req_in);
68 acquired = AUD_read(*s->in[0], s->data_in + s->idx_in,
69 sizeof(s->data_in) - s->idx_in);
70 }
71
72 static inline void wm8750_out_flush(WM8750State *s)
73 {
74 int sent = 0;
75 while (sent < s->idx_out)
76 sent += AUD_write(*s->out[0], s->data_out + sent, s->idx_out - sent)
77 ?: s->idx_out;
78 s->idx_out = 0;
79 }
80
81 static void wm8750_audio_in_cb(void *opaque, int avail_b)
82 {
83 WM8750State *s = (WM8750State *) opaque;
84 s->req_in = avail_b;
85 s->data_req(s->opaque, s->req_out >> 2, avail_b >> 2);
86 }
87
88 static void wm8750_audio_out_cb(void *opaque, int free_b)
89 {
90 WM8750State *s = (WM8750State *) opaque;
91
92 if (s->idx_out >= free_b) {
93 s->idx_out = free_b;
94 s->req_out = 0;
95 wm8750_out_flush(s);
96 } else
97 s->req_out = free_b - s->idx_out;
98
99 s->data_req(s->opaque, s->req_out >> 2, s->req_in >> 2);
100 }
101
102 static const WMRate wm_rate_table[] = {
103 { 256, 48000, 256, 48000 }, /* SR: 00000 */
104 { 384, 48000, 384, 48000 }, /* SR: 00001 */
105 { 256, 48000, 1536, 8000 }, /* SR: 00010 */
106 { 384, 48000, 2304, 8000 }, /* SR: 00011 */
107 { 1536, 8000, 256, 48000 }, /* SR: 00100 */
108 { 2304, 8000, 384, 48000 }, /* SR: 00101 */
109 { 1536, 8000, 1536, 8000 }, /* SR: 00110 */
110 { 2304, 8000, 2304, 8000 }, /* SR: 00111 */
111 { 1024, 12000, 1024, 12000 }, /* SR: 01000 */
112 { 1526, 12000, 1536, 12000 }, /* SR: 01001 */
113 { 768, 16000, 768, 16000 }, /* SR: 01010 */
114 { 1152, 16000, 1152, 16000 }, /* SR: 01011 */
115 { 384, 32000, 384, 32000 }, /* SR: 01100 */
116 { 576, 32000, 576, 32000 }, /* SR: 01101 */
117 { 128, 96000, 128, 96000 }, /* SR: 01110 */
118 { 192, 96000, 192, 96000 }, /* SR: 01111 */
119 { 256, 44100, 256, 44100 }, /* SR: 10000 */
120 { 384, 44100, 384, 44100 }, /* SR: 10001 */
121 { 256, 44100, 1408, 8018 }, /* SR: 10010 */
122 { 384, 44100, 2112, 8018 }, /* SR: 10011 */
123 { 1408, 8018, 256, 44100 }, /* SR: 10100 */
124 { 2112, 8018, 384, 44100 }, /* SR: 10101 */
125 { 1408, 8018, 1408, 8018 }, /* SR: 10110 */
126 { 2112, 8018, 2112, 8018 }, /* SR: 10111 */
127 { 1024, 11025, 1024, 11025 }, /* SR: 11000 */
128 { 1536, 11025, 1536, 11025 }, /* SR: 11001 */
129 { 512, 22050, 512, 22050 }, /* SR: 11010 */
130 { 768, 22050, 768, 22050 }, /* SR: 11011 */
131 { 512, 24000, 512, 24000 }, /* SR: 11100 */
132 { 768, 24000, 768, 24000 }, /* SR: 11101 */
133 { 128, 88200, 128, 88200 }, /* SR: 11110 */
134 { 192, 88200, 192, 88200 }, /* SR: 11111 */
135 };
136
137 static void wm8750_vol_update(WM8750State *s)
138 {
139 /* FIXME: multiply all volumes by s->invol[2], s->invol[3] */
140
141 AUD_set_volume_in(s->adc_voice[0], s->mute,
142 s->inmute[0] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[0]),
143 s->inmute[1] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[1]));
144 AUD_set_volume_in(s->adc_voice[1], s->mute,
145 s->inmute[0] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[0]),
146 s->inmute[1] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[1]));
147 AUD_set_volume_in(s->adc_voice[2], s->mute,
148 s->inmute[0] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[0]),
149 s->inmute[1] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[1]));
150
151 /* FIXME: multiply all volumes by s->outvol[0], s->outvol[1] */
152
153 /* Speaker: LOUT2VOL ROUT2VOL */
154 AUD_set_volume_out(s->dac_voice[0], s->mute,
155 s->outmute[0] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[4]),
156 s->outmute[1] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[5]));
157
158 /* Headphone: LOUT1VOL ROUT1VOL */
159 AUD_set_volume_out(s->dac_voice[1], s->mute,
160 s->outmute[0] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[2]),
161 s->outmute[1] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[3]));
162
163 /* MONOOUT: MONOVOL MONOVOL */
164 AUD_set_volume_out(s->dac_voice[2], s->mute,
165 s->outmute[0] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[6]),
166 s->outmute[1] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[6]));
167 }
168
169 static void wm8750_set_format(WM8750State *s)
170 {
171 int i;
172 struct audsettings in_fmt;
173 struct audsettings out_fmt;
174 struct audsettings monoout_fmt;
175
176 wm8750_out_flush(s);
177
178 if (s->in[0] && *s->in[0])
179 AUD_set_active_in(*s->in[0], 0);
180 if (s->out[0] && *s->out[0])
181 AUD_set_active_out(*s->out[0], 0);
182
183 for (i = 0; i < IN_PORT_N; i ++)
184 if (s->adc_voice[i]) {
185 AUD_close_in(&s->card, s->adc_voice[i]);
186 s->adc_voice[i] = NULL;
187 }
188 for (i = 0; i < OUT_PORT_N; i ++)
189 if (s->dac_voice[i]) {
190 AUD_close_out(&s->card, s->dac_voice[i]);
191 s->dac_voice[i] = NULL;
192 }
193
194 if (!s->enable)
195 return;
196
197 /* Setup input */
198 in_fmt.endianness = 0;
199 in_fmt.nchannels = 2;
200 in_fmt.freq = s->adc_hz;
201 in_fmt.fmt = AUD_FMT_S16;
202
203 s->adc_voice[0] = AUD_open_in(&s->card, s->adc_voice[0],
204 CODEC ".input1", s, wm8750_audio_in_cb, &in_fmt);
205 s->adc_voice[1] = AUD_open_in(&s->card, s->adc_voice[1],
206 CODEC ".input2", s, wm8750_audio_in_cb, &in_fmt);
207 s->adc_voice[2] = AUD_open_in(&s->card, s->adc_voice[2],
208 CODEC ".input3", s, wm8750_audio_in_cb, &in_fmt);
209
210 /* Setup output */
211 out_fmt.endianness = 0;
212 out_fmt.nchannels = 2;
213 out_fmt.freq = s->dac_hz;
214 out_fmt.fmt = AUD_FMT_S16;
215 monoout_fmt.endianness = 0;
216 monoout_fmt.nchannels = 1;
217 monoout_fmt.freq = s->rate->dac_hz;
218 monoout_fmt.fmt = AUD_FMT_S16;
219
220 s->dac_voice[0] = AUD_open_out(&s->card, s->dac_voice[0],
221 CODEC ".speaker", s, wm8750_audio_out_cb, &out_fmt);
222 s->dac_voice[1] = AUD_open_out(&s->card, s->dac_voice[1],
223 CODEC ".headphone", s, wm8750_audio_out_cb, &out_fmt);
224 /* MONOMIX is also in stereo for simplicity */
225 s->dac_voice[2] = AUD_open_out(&s->card, s->dac_voice[2],
226 CODEC ".monomix", s, wm8750_audio_out_cb, &out_fmt);
227 /* no sense emulating OUT3 which is a mix of other outputs */
228
229 wm8750_vol_update(s);
230
231 /* We should connect the left and right channels to their
232 * respective inputs/outputs but we have completely no need
233 * for mixing or combining paths to different ports, so we
234 * connect both channels to where the left channel is routed. */
235 if (s->in[0] && *s->in[0])
236 AUD_set_active_in(*s->in[0], 1);
237 if (s->out[0] && *s->out[0])
238 AUD_set_active_out(*s->out[0], 1);
239 }
240
241 static void wm8750_clk_update(WM8750State *s, int ext)
242 {
243 if (s->master || !s->ext_dac_hz)
244 s->dac_hz = s->rate->dac_hz;
245 else
246 s->dac_hz = s->ext_dac_hz;
247
248 if (s->master || !s->ext_adc_hz)
249 s->adc_hz = s->rate->adc_hz;
250 else
251 s->adc_hz = s->ext_adc_hz;
252
253 if (s->master || (!s->ext_dac_hz && !s->ext_adc_hz)) {
254 if (!ext)
255 wm8750_set_format(s);
256 } else {
257 if (ext)
258 wm8750_set_format(s);
259 }
260 }
261
262 static void wm8750_reset(i2c_slave *i2c)
263 {
264 WM8750State *s = (WM8750State *) i2c;
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(i2c_slave *i2c, enum i2c_event event)
306 {
307 WM8750State *s = (WM8750State *) 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(i2c_slave *i2c, uint8_t data)
363 {
364 WM8750State *s = (WM8750State *) i2c;
365 uint8_t cmd;
366 uint16_t value;
367
368 if (s->i2c_len >= 2) {
369 printf("%s: long message (%i bytes)\n", __FUNCTION__, s->i2c_len);
370 #ifdef VERBOSE
371 return 1;
372 #endif
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(&s->i2c);
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(i2c_slave *i2c)
563 {
564 return 0x00;
565 }
566
567 static void wm8750_save(QEMUFile *f, void *opaque)
568 {
569 WM8750State *s = (WM8750State *) opaque;
570 int i;
571 qemu_put_8s(f, &s->i2c_data[0]);
572 qemu_put_8s(f, &s->i2c_data[1]);
573 qemu_put_be32(f, s->i2c_len);
574 qemu_put_be32(f, s->enable);
575 qemu_put_be32(f, s->idx_in);
576 qemu_put_be32(f, s->req_in);
577 qemu_put_be32(f, s->idx_out);
578 qemu_put_be32(f, s->req_out);
579
580 for (i = 0; i < 7; i ++)
581 qemu_put_8s(f, &s->outvol[i]);
582 for (i = 0; i < 2; i ++)
583 qemu_put_8s(f, &s->outmute[i]);
584 for (i = 0; i < 4; i ++)
585 qemu_put_8s(f, &s->invol[i]);
586 for (i = 0; i < 2; i ++)
587 qemu_put_8s(f, &s->inmute[i]);
588
589 for (i = 0; i < 2; i ++)
590 qemu_put_8s(f, &s->diff[i]);
591 qemu_put_8s(f, &s->pol);
592 qemu_put_8s(f, &s->ds);
593 for (i = 0; i < 2; i ++)
594 qemu_put_8s(f, &s->monomix[i]);
595 qemu_put_8s(f, &s->alc);
596 qemu_put_8s(f, &s->mute);
597 for (i = 0; i < 4; i ++)
598 qemu_put_8s(f, &s->path[i]);
599 for (i = 0; i < 2; i ++)
600 qemu_put_8s(f, &s->mpath[i]);
601 qemu_put_8s(f, &s->format);
602 qemu_put_8s(f, &s->power);
603 qemu_put_byte(f, (s->rate - wm_rate_table) / sizeof(*s->rate));
604 i2c_slave_save(f, &s->i2c);
605 }
606
607 static int wm8750_load(QEMUFile *f, void *opaque, int version_id)
608 {
609 WM8750State *s = (WM8750State *) opaque;
610 int i;
611 qemu_get_8s(f, &s->i2c_data[0]);
612 qemu_get_8s(f, &s->i2c_data[1]);
613 s->i2c_len = qemu_get_be32(f);
614 s->enable = qemu_get_be32(f);
615 s->idx_in = qemu_get_be32(f);
616 s->req_in = qemu_get_be32(f);
617 s->idx_out = qemu_get_be32(f);
618 s->req_out = qemu_get_be32(f);
619
620 for (i = 0; i < 7; i ++)
621 qemu_get_8s(f, &s->outvol[i]);
622 for (i = 0; i < 2; i ++)
623 qemu_get_8s(f, &s->outmute[i]);
624 for (i = 0; i < 4; i ++)
625 qemu_get_8s(f, &s->invol[i]);
626 for (i = 0; i < 2; i ++)
627 qemu_get_8s(f, &s->inmute[i]);
628
629 for (i = 0; i < 2; i ++)
630 qemu_get_8s(f, &s->diff[i]);
631 qemu_get_8s(f, &s->pol);
632 qemu_get_8s(f, &s->ds);
633 for (i = 0; i < 2; i ++)
634 qemu_get_8s(f, &s->monomix[i]);
635 qemu_get_8s(f, &s->alc);
636 qemu_get_8s(f, &s->mute);
637 for (i = 0; i < 4; i ++)
638 qemu_get_8s(f, &s->path[i]);
639 for (i = 0; i < 2; i ++)
640 qemu_get_8s(f, &s->mpath[i]);
641 qemu_get_8s(f, &s->format);
642 qemu_get_8s(f, &s->power);
643 s->rate = &wm_rate_table[(uint8_t) qemu_get_byte(f) & 0x1f];
644 i2c_slave_load(f, &s->i2c);
645 return 0;
646 }
647
648 static void wm8750_init(i2c_slave *i2c)
649 {
650 WM8750State *s = FROM_I2C_SLAVE(WM8750State, i2c);
651
652 AUD_register_card(CODEC, &s->card);
653 wm8750_reset(&s->i2c);
654
655 register_savevm(CODEC, -1, 0, wm8750_save, wm8750_load, s);
656 }
657
658 #if 0
659 static void wm8750_fini(i2c_slave *i2c)
660 {
661 WM8750State *s = (WM8750State *) i2c;
662 wm8750_reset(&s->i2c);
663 AUD_remove_card(&s->card);
664 qemu_free(s);
665 }
666 #endif
667
668 void wm8750_data_req_set(DeviceState *dev,
669 void (*data_req)(void *, int, int), void *opaque)
670 {
671 WM8750State *s = FROM_I2C_SLAVE(WM8750State, I2C_SLAVE_FROM_QDEV(dev));
672 s->data_req = data_req;
673 s->opaque = opaque;
674 }
675
676 void wm8750_dac_dat(void *opaque, uint32_t sample)
677 {
678 WM8750State *s = (WM8750State *) opaque;
679
680 *(uint32_t *) &s->data_out[s->idx_out] = sample;
681 s->req_out -= 4;
682 s->idx_out += 4;
683 if (s->idx_out >= sizeof(s->data_out) || s->req_out <= 0)
684 wm8750_out_flush(s);
685 }
686
687 void *wm8750_dac_buffer(void *opaque, int samples)
688 {
689 WM8750State *s = (WM8750State *) opaque;
690 /* XXX: Should check if there are <i>samples</i> free samples available */
691 void *ret = s->data_out + s->idx_out;
692
693 s->idx_out += samples << 2;
694 s->req_out -= samples << 2;
695 return ret;
696 }
697
698 void wm8750_dac_commit(void *opaque)
699 {
700 WM8750State *s = (WM8750State *) opaque;
701
702 wm8750_out_flush(s);
703 }
704
705 uint32_t wm8750_adc_dat(void *opaque)
706 {
707 WM8750State *s = (WM8750State *) opaque;
708 uint32_t *data;
709
710 if (s->idx_in >= sizeof(s->data_in))
711 wm8750_in_load(s);
712
713 data = (uint32_t *) &s->data_in[s->idx_in];
714 s->req_in -= 4;
715 s->idx_in += 4;
716 return *data;
717 }
718
719 void wm8750_set_bclk_in(void *opaque, int new_hz)
720 {
721 WM8750State *s = (WM8750State *) opaque;
722
723 s->ext_adc_hz = new_hz;
724 s->ext_dac_hz = new_hz;
725 wm8750_clk_update(s, 1);
726 }
727
728 static I2CSlaveInfo wm8750_info = {
729 .init = wm8750_init,
730 .event = wm8750_event,
731 .recv = wm8750_rx,
732 .send = wm8750_tx
733 };
734
735 static void wm8750_register_devices(void)
736 {
737 i2c_register_slave("wm8750", sizeof(WM8750State), &wm8750_info);
738 }
739
740 device_init(wm8750_register_devices)
Samsung s3c2440 and arm920t support for the mini2440 dev board