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) 728