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