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 typedef struct WM8750State WM8750State; 31 #define WM8750(obj) OBJECT_CHECK(WM8750State, (obj), TYPE_WM8750) 32 33 struct WM8750State { 34 I2CSlave parent_obj; 35 36 uint8_t i2c_data[2]; 37 int i2c_len; 38 QEMUSoundCard card; 39 SWVoiceIn *adc_voice[IN_PORT_N]; 40 SWVoiceOut *dac_voice[OUT_PORT_N]; 41 int enable; 42 void (*data_req)(void *, int, int); 43 void *opaque; 44 uint8_t data_in[4096]; 45 uint8_t data_out[4096]; 46 int idx_in, req_in; 47 int idx_out, req_out; 48 49 SWVoiceOut **out[2]; 50 uint8_t outvol[7], outmute[2]; 51 SWVoiceIn **in[2]; 52 uint8_t invol[4], inmute[2]; 53 54 uint8_t diff[2], pol, ds, monomix[2], alc, mute; 55 uint8_t path[4], mpath[2], power, format; 56 const WMRate *rate; 57 uint8_t rate_vmstate; 58 int adc_hz, dac_hz, ext_adc_hz, ext_dac_hz, master; 59 }; 60 61 /* pow(10.0, -i / 20.0) * 255, i = 0..42 */ 62 static const uint8_t wm8750_vol_db_table[] = { 63 255, 227, 203, 181, 161, 143, 128, 114, 102, 90, 81, 72, 64, 57, 51, 45, 64 40, 36, 32, 29, 26, 23, 20, 18, 16, 14, 13, 11, 10, 9, 8, 7, 6, 6, 5, 5, 65 4, 4, 3, 3, 3, 2, 2 66 }; 67 68 #define WM8750_OUTVOL_TRANSFORM(x) wm8750_vol_db_table[(0x7f - x) / 3] 69 #define WM8750_INVOL_TRANSFORM(x) (x << 2) 70 71 static inline void wm8750_in_load(WM8750State *s) 72 { 73 if (s->idx_in + s->req_in <= sizeof(s->data_in)) 74 return; 75 s->idx_in = MAX(0, (int) sizeof(s->data_in) - s->req_in); 76 AUD_read(*s->in[0], s->data_in + s->idx_in, 77 sizeof(s->data_in) - s->idx_in); 78 } 79 80 static inline void wm8750_out_flush(WM8750State *s) 81 { 82 int sent = 0; 83 while (sent < s->idx_out) 84 sent += AUD_write(*s->out[0], s->data_out + sent, s->idx_out - sent) 85 ?: s->idx_out; 86 s->idx_out = 0; 87 } 88 89 static void wm8750_audio_in_cb(void *opaque, int avail_b) 90 { 91 WM8750State *s = (WM8750State *) opaque; 92 s->req_in = avail_b; 93 s->data_req(s->opaque, s->req_out >> 2, avail_b >> 2); 94 } 95 96 static void wm8750_audio_out_cb(void *opaque, int free_b) 97 { 98 WM8750State *s = (WM8750State *) opaque; 99 100 if (s->idx_out >= free_b) { 101 s->idx_out = free_b; 102 s->req_out = 0; 103 wm8750_out_flush(s); 104 } else 105 s->req_out = free_b - s->idx_out; 106 107 s->data_req(s->opaque, s->req_out >> 2, s->req_in >> 2); 108 } 109 110 static const WMRate wm_rate_table[] = { 111 { 256, 48000, 256, 48000 }, /* SR: 00000 */ 112 { 384, 48000, 384, 48000 }, /* SR: 00001 */ 113 { 256, 48000, 1536, 8000 }, /* SR: 00010 */ 114 { 384, 48000, 2304, 8000 }, /* SR: 00011 */ 115 { 1536, 8000, 256, 48000 }, /* SR: 00100 */ 116 { 2304, 8000, 384, 48000 }, /* SR: 00101 */ 117 { 1536, 8000, 1536, 8000 }, /* SR: 00110 */ 118 { 2304, 8000, 2304, 8000 }, /* SR: 00111 */ 119 { 1024, 12000, 1024, 12000 }, /* SR: 01000 */ 120 { 1526, 12000, 1536, 12000 }, /* SR: 01001 */ 121 { 768, 16000, 768, 16000 }, /* SR: 01010 */ 122 { 1152, 16000, 1152, 16000 }, /* SR: 01011 */ 123 { 384, 32000, 384, 32000 }, /* SR: 01100 */ 124 { 576, 32000, 576, 32000 }, /* SR: 01101 */ 125 { 128, 96000, 128, 96000 }, /* SR: 01110 */ 126 { 192, 96000, 192, 96000 }, /* SR: 01111 */ 127 { 256, 44100, 256, 44100 }, /* SR: 10000 */ 128 { 384, 44100, 384, 44100 }, /* SR: 10001 */ 129 { 256, 44100, 1408, 8018 }, /* SR: 10010 */ 130 { 384, 44100, 2112, 8018 }, /* SR: 10011 */ 131 { 1408, 8018, 256, 44100 }, /* SR: 10100 */ 132 { 2112, 8018, 384, 44100 }, /* SR: 10101 */ 133 { 1408, 8018, 1408, 8018 }, /* SR: 10110 */ 134 { 2112, 8018, 2112, 8018 }, /* SR: 10111 */ 135 { 1024, 11025, 1024, 11025 }, /* SR: 11000 */ 136 { 1536, 11025, 1536, 11025 }, /* SR: 11001 */ 137 { 512, 22050, 512, 22050 }, /* SR: 11010 */ 138 { 768, 22050, 768, 22050 }, /* SR: 11011 */ 139 { 512, 24000, 512, 24000 }, /* SR: 11100 */ 140 { 768, 24000, 768, 24000 }, /* SR: 11101 */ 141 { 128, 88200, 128, 88200 }, /* SR: 11110 */ 142 { 192, 88200, 192, 88200 }, /* SR: 11111 */ 143 }; 144 145 static void wm8750_vol_update(WM8750State *s) 146 { 147 /* FIXME: multiply all volumes by s->invol[2], s->invol[3] */ 148 149 AUD_set_volume_in(s->adc_voice[0], s->mute, 150 s->inmute[0] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[0]), 151 s->inmute[1] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[1])); 152 AUD_set_volume_in(s->adc_voice[1], s->mute, 153 s->inmute[0] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[0]), 154 s->inmute[1] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[1])); 155 AUD_set_volume_in(s->adc_voice[2], s->mute, 156 s->inmute[0] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[0]), 157 s->inmute[1] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[1])); 158 159 /* FIXME: multiply all volumes by s->outvol[0], s->outvol[1] */ 160 161 /* Speaker: LOUT2VOL ROUT2VOL */ 162 AUD_set_volume_out(s->dac_voice[0], s->mute, 163 s->outmute[0] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[4]), 164 s->outmute[1] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[5])); 165 166 /* Headphone: LOUT1VOL ROUT1VOL */ 167 AUD_set_volume_out(s->dac_voice[1], s->mute, 168 s->outmute[0] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[2]), 169 s->outmute[1] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[3])); 170 171 /* MONOOUT: MONOVOL MONOVOL */ 172 AUD_set_volume_out(s->dac_voice[2], s->mute, 173 s->outmute[0] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[6]), 174 s->outmute[1] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[6])); 175 } 176 177 static void wm8750_set_format(WM8750State *s) 178 { 179 int i; 180 struct audsettings in_fmt; 181 struct audsettings out_fmt; 182 183 wm8750_out_flush(s); 184 185 if (s->in[0] && *s->in[0]) 186 AUD_set_active_in(*s->in[0], 0); 187 if (s->out[0] && *s->out[0]) 188 AUD_set_active_out(*s->out[0], 0); 189 190 for (i = 0; i < IN_PORT_N; i ++) 191 if (s->adc_voice[i]) { 192 AUD_close_in(&s->card, s->adc_voice[i]); 193 s->adc_voice[i] = NULL; 194 } 195 for (i = 0; i < OUT_PORT_N; i ++) 196 if (s->dac_voice[i]) { 197 AUD_close_out(&s->card, s->dac_voice[i]); 198 s->dac_voice[i] = NULL; 199 } 200 201 if (!s->enable) 202 return; 203 204 /* Setup input */ 205 in_fmt.endianness = 0; 206 in_fmt.nchannels = 2; 207 in_fmt.freq = s->adc_hz; 208 in_fmt.fmt = AUDIO_FORMAT_S16; 209 210 s->adc_voice[0] = AUD_open_in(&s->card, s->adc_voice[0], 211 CODEC ".input1", s, wm8750_audio_in_cb, &in_fmt); 212 s->adc_voice[1] = AUD_open_in(&s->card, s->adc_voice[1], 213 CODEC ".input2", s, wm8750_audio_in_cb, &in_fmt); 214 s->adc_voice[2] = AUD_open_in(&s->card, s->adc_voice[2], 215 CODEC ".input3", s, wm8750_audio_in_cb, &in_fmt); 216 217 /* Setup output */ 218 out_fmt.endianness = 0; 219 out_fmt.nchannels = 2; 220 out_fmt.freq = s->dac_hz; 221 out_fmt.fmt = AUDIO_FORMAT_S16; 222 223 s->dac_voice[0] = AUD_open_out(&s->card, s->dac_voice[0], 224 CODEC ".speaker", s, wm8750_audio_out_cb, &out_fmt); 225 s->dac_voice[1] = AUD_open_out(&s->card, s->dac_voice[1], 226 CODEC ".headphone", s, wm8750_audio_out_cb, &out_fmt); 227 /* MONOMIX is also in stereo for simplicity */ 228 s->dac_voice[2] = AUD_open_out(&s->card, s->dac_voice[2], 229 CODEC ".monomix", s, wm8750_audio_out_cb, &out_fmt); 230 /* no sense emulating OUT3 which is a mix of other outputs */ 231 232 wm8750_vol_update(s); 233 234 /* We should connect the left and right channels to their 235 * respective inputs/outputs but we have completely no need 236 * for mixing or combining paths to different ports, so we 237 * connect both channels to where the left channel is routed. */ 238 if (s->in[0] && *s->in[0]) 239 AUD_set_active_in(*s->in[0], 1); 240 if (s->out[0] && *s->out[0]) 241 AUD_set_active_out(*s->out[0], 1); 242 } 243 244 static void wm8750_clk_update(WM8750State *s, int ext) 245 { 246 if (s->master || !s->ext_dac_hz) 247 s->dac_hz = s->rate->dac_hz; 248 else 249 s->dac_hz = s->ext_dac_hz; 250 251 if (s->master || !s->ext_adc_hz) 252 s->adc_hz = s->rate->adc_hz; 253 else 254 s->adc_hz = s->ext_adc_hz; 255 256 if (s->master || (!s->ext_dac_hz && !s->ext_adc_hz)) { 257 if (!ext) 258 wm8750_set_format(s); 259 } else { 260 if (ext) 261 wm8750_set_format(s); 262 } 263 } 264 265 static void wm8750_reset(I2CSlave *i2c) 266 { 267 WM8750State *s = WM8750(i2c); 268 269 s->rate = &wm_rate_table[0]; 270 s->enable = 0; 271 wm8750_clk_update(s, 1); 272 s->diff[0] = 0; 273 s->diff[1] = 0; 274 s->ds = 0; 275 s->alc = 0; 276 s->in[0] = &s->adc_voice[0]; 277 s->invol[0] = 0x17; 278 s->invol[1] = 0x17; 279 s->invol[2] = 0xc3; 280 s->invol[3] = 0xc3; 281 s->out[0] = &s->dac_voice[0]; 282 s->outvol[0] = 0xff; 283 s->outvol[1] = 0xff; 284 s->outvol[2] = 0x79; 285 s->outvol[3] = 0x79; 286 s->outvol[4] = 0x79; 287 s->outvol[5] = 0x79; 288 s->outvol[6] = 0x79; 289 s->inmute[0] = 0; 290 s->inmute[1] = 0; 291 s->outmute[0] = 0; 292 s->outmute[1] = 0; 293 s->mute = 1; 294 s->path[0] = 0; 295 s->path[1] = 0; 296 s->path[2] = 0; 297 s->path[3] = 0; 298 s->mpath[0] = 0; 299 s->mpath[1] = 0; 300 s->format = 0x0a; 301 s->idx_in = sizeof(s->data_in); 302 s->req_in = 0; 303 s->idx_out = 0; 304 s->req_out = 0; 305 wm8750_vol_update(s); 306 s->i2c_len = 0; 307 } 308 309 static int wm8750_event(I2CSlave *i2c, enum i2c_event event) 310 { 311 WM8750State *s = WM8750(i2c); 312 313 switch (event) { 314 case I2C_START_SEND: 315 s->i2c_len = 0; 316 break; 317 case I2C_FINISH: 318 #ifdef VERBOSE 319 if (s->i2c_len < 2) 320 printf("%s: message too short (%i bytes)\n", 321 __func__, s->i2c_len); 322 #endif 323 break; 324 default: 325 break; 326 } 327 328 return 0; 329 } 330 331 #define WM8750_LINVOL 0x00 332 #define WM8750_RINVOL 0x01 333 #define WM8750_LOUT1V 0x02 334 #define WM8750_ROUT1V 0x03 335 #define WM8750_ADCDAC 0x05 336 #define WM8750_IFACE 0x07 337 #define WM8750_SRATE 0x08 338 #define WM8750_LDAC 0x0a 339 #define WM8750_RDAC 0x0b 340 #define WM8750_BASS 0x0c 341 #define WM8750_TREBLE 0x0d 342 #define WM8750_RESET 0x0f 343 #define WM8750_3D 0x10 344 #define WM8750_ALC1 0x11 345 #define WM8750_ALC2 0x12 346 #define WM8750_ALC3 0x13 347 #define WM8750_NGATE 0x14 348 #define WM8750_LADC 0x15 349 #define WM8750_RADC 0x16 350 #define WM8750_ADCTL1 0x17 351 #define WM8750_ADCTL2 0x18 352 #define WM8750_PWR1 0x19 353 #define WM8750_PWR2 0x1a 354 #define WM8750_ADCTL3 0x1b 355 #define WM8750_ADCIN 0x1f 356 #define WM8750_LADCIN 0x20 357 #define WM8750_RADCIN 0x21 358 #define WM8750_LOUTM1 0x22 359 #define WM8750_LOUTM2 0x23 360 #define WM8750_ROUTM1 0x24 361 #define WM8750_ROUTM2 0x25 362 #define WM8750_MOUTM1 0x26 363 #define WM8750_MOUTM2 0x27 364 #define WM8750_LOUT2V 0x28 365 #define WM8750_ROUT2V 0x29 366 #define WM8750_MOUTV 0x2a 367 368 static int wm8750_tx(I2CSlave *i2c, uint8_t data) 369 { 370 WM8750State *s = WM8750(i2c); 371 uint8_t cmd; 372 uint16_t value; 373 374 if (s->i2c_len >= 2) { 375 #ifdef VERBOSE 376 printf("%s: long message (%i bytes)\n", __func__, s->i2c_len); 377 #endif 378 return 1; 379 } 380 s->i2c_data[s->i2c_len ++] = data; 381 if (s->i2c_len != 2) 382 return 0; 383 384 cmd = s->i2c_data[0] >> 1; 385 value = ((s->i2c_data[0] << 8) | s->i2c_data[1]) & 0x1ff; 386 387 switch (cmd) { 388 case WM8750_LADCIN: /* ADC Signal Path Control (Left) */ 389 s->diff[0] = (((value >> 6) & 3) == 3); /* LINSEL */ 390 if (s->diff[0]) 391 s->in[0] = &s->adc_voice[0 + s->ds * 1]; 392 else 393 s->in[0] = &s->adc_voice[((value >> 6) & 3) * 1 + 0]; 394 break; 395 396 case WM8750_RADCIN: /* ADC Signal Path Control (Right) */ 397 s->diff[1] = (((value >> 6) & 3) == 3); /* RINSEL */ 398 if (s->diff[1]) 399 s->in[1] = &s->adc_voice[0 + s->ds * 1]; 400 else 401 s->in[1] = &s->adc_voice[((value >> 6) & 3) * 1 + 0]; 402 break; 403 404 case WM8750_ADCIN: /* ADC Input Mode */ 405 s->ds = (value >> 8) & 1; /* DS */ 406 if (s->diff[0]) 407 s->in[0] = &s->adc_voice[0 + s->ds * 1]; 408 if (s->diff[1]) 409 s->in[1] = &s->adc_voice[0 + s->ds * 1]; 410 s->monomix[0] = (value >> 6) & 3; /* MONOMIX */ 411 break; 412 413 case WM8750_ADCTL1: /* Additional Control (1) */ 414 s->monomix[1] = (value >> 1) & 1; /* DMONOMIX */ 415 break; 416 417 case WM8750_PWR1: /* Power Management (1) */ 418 s->enable = ((value >> 6) & 7) == 3; /* VMIDSEL, VREF */ 419 wm8750_set_format(s); 420 break; 421 422 case WM8750_LINVOL: /* Left Channel PGA */ 423 s->invol[0] = value & 0x3f; /* LINVOL */ 424 s->inmute[0] = (value >> 7) & 1; /* LINMUTE */ 425 wm8750_vol_update(s); 426 break; 427 428 case WM8750_RINVOL: /* Right Channel PGA */ 429 s->invol[1] = value & 0x3f; /* RINVOL */ 430 s->inmute[1] = (value >> 7) & 1; /* RINMUTE */ 431 wm8750_vol_update(s); 432 break; 433 434 case WM8750_ADCDAC: /* ADC and DAC Control */ 435 s->pol = (value >> 5) & 3; /* ADCPOL */ 436 s->mute = (value >> 3) & 1; /* DACMU */ 437 wm8750_vol_update(s); 438 break; 439 440 case WM8750_ADCTL3: /* Additional Control (3) */ 441 break; 442 443 case WM8750_LADC: /* Left ADC Digital Volume */ 444 s->invol[2] = value & 0xff; /* LADCVOL */ 445 wm8750_vol_update(s); 446 break; 447 448 case WM8750_RADC: /* Right ADC Digital Volume */ 449 s->invol[3] = value & 0xff; /* RADCVOL */ 450 wm8750_vol_update(s); 451 break; 452 453 case WM8750_ALC1: /* ALC Control (1) */ 454 s->alc = (value >> 7) & 3; /* ALCSEL */ 455 break; 456 457 case WM8750_NGATE: /* Noise Gate Control */ 458 case WM8750_3D: /* 3D enhance */ 459 break; 460 461 case WM8750_LDAC: /* Left Channel Digital Volume */ 462 s->outvol[0] = value & 0xff; /* LDACVOL */ 463 wm8750_vol_update(s); 464 break; 465 466 case WM8750_RDAC: /* Right Channel Digital Volume */ 467 s->outvol[1] = value & 0xff; /* RDACVOL */ 468 wm8750_vol_update(s); 469 break; 470 471 case WM8750_BASS: /* Bass Control */ 472 break; 473 474 case WM8750_LOUTM1: /* Left Mixer Control (1) */ 475 s->path[0] = (value >> 8) & 1; /* LD2LO */ 476 /* TODO: mute/unmute respective paths */ 477 wm8750_vol_update(s); 478 break; 479 480 case WM8750_LOUTM2: /* Left Mixer Control (2) */ 481 s->path[1] = (value >> 8) & 1; /* RD2LO */ 482 /* TODO: mute/unmute respective paths */ 483 wm8750_vol_update(s); 484 break; 485 486 case WM8750_ROUTM1: /* Right Mixer Control (1) */ 487 s->path[2] = (value >> 8) & 1; /* LD2RO */ 488 /* TODO: mute/unmute respective paths */ 489 wm8750_vol_update(s); 490 break; 491 492 case WM8750_ROUTM2: /* Right Mixer Control (2) */ 493 s->path[3] = (value >> 8) & 1; /* RD2RO */ 494 /* TODO: mute/unmute respective paths */ 495 wm8750_vol_update(s); 496 break; 497 498 case WM8750_MOUTM1: /* Mono Mixer Control (1) */ 499 s->mpath[0] = (value >> 8) & 1; /* LD2MO */ 500 /* TODO: mute/unmute respective paths */ 501 wm8750_vol_update(s); 502 break; 503 504 case WM8750_MOUTM2: /* Mono Mixer Control (2) */ 505 s->mpath[1] = (value >> 8) & 1; /* RD2MO */ 506 /* TODO: mute/unmute respective paths */ 507 wm8750_vol_update(s); 508 break; 509 510 case WM8750_LOUT1V: /* LOUT1 Volume */ 511 s->outvol[2] = value & 0x7f; /* LOUT1VOL */ 512 wm8750_vol_update(s); 513 break; 514 515 case WM8750_LOUT2V: /* LOUT2 Volume */ 516 s->outvol[4] = value & 0x7f; /* LOUT2VOL */ 517 wm8750_vol_update(s); 518 break; 519 520 case WM8750_ROUT1V: /* ROUT1 Volume */ 521 s->outvol[3] = value & 0x7f; /* ROUT1VOL */ 522 wm8750_vol_update(s); 523 break; 524 525 case WM8750_ROUT2V: /* ROUT2 Volume */ 526 s->outvol[5] = value & 0x7f; /* ROUT2VOL */ 527 wm8750_vol_update(s); 528 break; 529 530 case WM8750_MOUTV: /* MONOOUT Volume */ 531 s->outvol[6] = value & 0x7f; /* MONOOUTVOL */ 532 wm8750_vol_update(s); 533 break; 534 535 case WM8750_ADCTL2: /* Additional Control (2) */ 536 break; 537 538 case WM8750_PWR2: /* Power Management (2) */ 539 s->power = value & 0x7e; 540 /* TODO: mute/unmute respective paths */ 541 wm8750_vol_update(s); 542 break; 543 544 case WM8750_IFACE: /* Digital Audio Interface Format */ 545 s->format = value; 546 s->master = (value >> 6) & 1; /* MS */ 547 wm8750_clk_update(s, s->master); 548 break; 549 550 case WM8750_SRATE: /* Clocking and Sample Rate Control */ 551 s->rate = &wm_rate_table[(value >> 1) & 0x1f]; 552 wm8750_clk_update(s, 0); 553 break; 554 555 case WM8750_RESET: /* Reset */ 556 wm8750_reset(I2C_SLAVE(s)); 557 break; 558 559 #ifdef VERBOSE 560 default: 561 printf("%s: unknown register %02x\n", __func__, cmd); 562 #endif 563 } 564 565 return 0; 566 } 567 568 static uint8_t wm8750_rx(I2CSlave *i2c) 569 { 570 return 0x00; 571 } 572 573 static int wm8750_pre_save(void *opaque) 574 { 575 WM8750State *s = opaque; 576 577 s->rate_vmstate = s->rate - wm_rate_table; 578 579 return 0; 580 } 581 582 static int wm8750_post_load(void *opaque, int version_id) 583 { 584 WM8750State *s = opaque; 585 586 s->rate = &wm_rate_table[s->rate_vmstate & 0x1f]; 587 return 0; 588 } 589 590 static const VMStateDescription vmstate_wm8750 = { 591 .name = CODEC, 592 .version_id = 0, 593 .minimum_version_id = 0, 594 .pre_save = wm8750_pre_save, 595 .post_load = wm8750_post_load, 596 .fields = (VMStateField[]) { 597 VMSTATE_UINT8_ARRAY(i2c_data, WM8750State, 2), 598 VMSTATE_INT32(i2c_len, WM8750State), 599 VMSTATE_INT32(enable, WM8750State), 600 VMSTATE_INT32(idx_in, WM8750State), 601 VMSTATE_INT32(req_in, WM8750State), 602 VMSTATE_INT32(idx_out, WM8750State), 603 VMSTATE_INT32(req_out, WM8750State), 604 VMSTATE_UINT8_ARRAY(outvol, WM8750State, 7), 605 VMSTATE_UINT8_ARRAY(outmute, WM8750State, 2), 606 VMSTATE_UINT8_ARRAY(invol, WM8750State, 4), 607 VMSTATE_UINT8_ARRAY(inmute, WM8750State, 2), 608 VMSTATE_UINT8_ARRAY(diff, WM8750State, 2), 609 VMSTATE_UINT8(pol, WM8750State), 610 VMSTATE_UINT8(ds, WM8750State), 611 VMSTATE_UINT8_ARRAY(monomix, WM8750State, 2), 612 VMSTATE_UINT8(alc, WM8750State), 613 VMSTATE_UINT8(mute, WM8750State), 614 VMSTATE_UINT8_ARRAY(path, WM8750State, 4), 615 VMSTATE_UINT8_ARRAY(mpath, WM8750State, 2), 616 VMSTATE_UINT8(format, WM8750State), 617 VMSTATE_UINT8(power, WM8750State), 618 VMSTATE_UINT8(rate_vmstate, WM8750State), 619 VMSTATE_I2C_SLAVE(parent_obj, WM8750State), 620 VMSTATE_END_OF_LIST() 621 } 622 }; 623 624 static void wm8750_realize(DeviceState *dev, Error **errp) 625 { 626 WM8750State *s = WM8750(dev); 627 628 AUD_register_card(CODEC, &s->card); 629 wm8750_reset(I2C_SLAVE(s)); 630 } 631 632 #if 0 633 static void wm8750_fini(I2CSlave *i2c) 634 { 635 WM8750State *s = WM8750(i2c); 636 637 wm8750_reset(I2C_SLAVE(s)); 638 AUD_remove_card(&s->card); 639 g_free(s); 640 } 641 #endif 642 643 void wm8750_data_req_set(DeviceState *dev, data_req_cb *data_req, void *opaque) 644 { 645 WM8750State *s = WM8750(dev); 646 647 s->data_req = data_req; 648 s->opaque = opaque; 649 } 650 651 void wm8750_dac_dat(void *opaque, uint32_t sample) 652 { 653 WM8750State *s = (WM8750State *) opaque; 654 655 *(uint32_t *) &s->data_out[s->idx_out] = sample; 656 s->req_out -= 4; 657 s->idx_out += 4; 658 if (s->idx_out >= sizeof(s->data_out) || s->req_out <= 0) 659 wm8750_out_flush(s); 660 } 661 662 void *wm8750_dac_buffer(void *opaque, int samples) 663 { 664 WM8750State *s = (WM8750State *) opaque; 665 /* XXX: Should check if there are <i>samples</i> free samples available */ 666 void *ret = s->data_out + s->idx_out; 667 668 s->idx_out += samples << 2; 669 s->req_out -= samples << 2; 670 return ret; 671 } 672 673 void wm8750_dac_commit(void *opaque) 674 { 675 WM8750State *s = (WM8750State *) opaque; 676 677 wm8750_out_flush(s); 678 } 679 680 uint32_t wm8750_adc_dat(void *opaque) 681 { 682 WM8750State *s = (WM8750State *) opaque; 683 uint32_t *data; 684 685 if (s->idx_in >= sizeof(s->data_in)) { 686 wm8750_in_load(s); 687 if (s->idx_in >= sizeof(s->data_in)) { 688 return 0x80008000; /* silence in AUDIO_FORMAT_S16 sample format */ 689 } 690 } 691 692 data = (uint32_t *) &s->data_in[s->idx_in]; 693 s->req_in -= 4; 694 s->idx_in += 4; 695 return *data; 696 } 697 698 void wm8750_set_bclk_in(void *opaque, int new_hz) 699 { 700 WM8750State *s = (WM8750State *) opaque; 701 702 s->ext_adc_hz = new_hz; 703 s->ext_dac_hz = new_hz; 704 wm8750_clk_update(s, 1); 705 } 706 707 static Property wm8750_properties[] = { 708 DEFINE_AUDIO_PROPERTIES(WM8750State, card), 709 DEFINE_PROP_END_OF_LIST(), 710 }; 711 712 static void wm8750_class_init(ObjectClass *klass, void *data) 713 { 714 DeviceClass *dc = DEVICE_CLASS(klass); 715 I2CSlaveClass *sc = I2C_SLAVE_CLASS(klass); 716 717 dc->realize = wm8750_realize; 718 sc->event = wm8750_event; 719 sc->recv = wm8750_rx; 720 sc->send = wm8750_tx; 721 dc->vmsd = &vmstate_wm8750; 722 device_class_set_props(dc, wm8750_properties); 723 } 724 725 static const TypeInfo wm8750_info = { 726 .name = TYPE_WM8750, 727 .parent = TYPE_I2C_SLAVE, 728 .instance_size = sizeof(WM8750State), 729 .class_init = wm8750_class_init, 730 }; 731 732 static void wm8750_register_types(void) 733 { 734 type_register_static(&wm8750_info); 735 } 736 737 type_init(wm8750_register_types) 738