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/hw.h" 11 #include "hw/i2c/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 I2CSlave 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 uint8_t rate_vmstate; 50 int adc_hz, dac_hz, ext_adc_hz, ext_dac_hz, master; 51 } WM8750State; 52 53 /* pow(10.0, -i / 20.0) * 255, i = 0..42 */ 54 static const uint8_t wm8750_vol_db_table[] = { 55 255, 227, 203, 181, 161, 143, 128, 114, 102, 90, 81, 72, 64, 57, 51, 45, 56 40, 36, 32, 29, 26, 23, 20, 18, 16, 14, 13, 11, 10, 9, 8, 7, 6, 6, 5, 5, 57 4, 4, 3, 3, 3, 2, 2 58 }; 59 60 #define WM8750_OUTVOL_TRANSFORM(x) wm8750_vol_db_table[(0x7f - x) / 3] 61 #define WM8750_INVOL_TRANSFORM(x) (x << 2) 62 63 static inline void wm8750_in_load(WM8750State *s) 64 { 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 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; 174 175 wm8750_out_flush(s); 176 177 if (s->in[0] && *s->in[0]) 178 AUD_set_active_in(*s->in[0], 0); 179 if (s->out[0] && *s->out[0]) 180 AUD_set_active_out(*s->out[0], 0); 181 182 for (i = 0; i < IN_PORT_N; i ++) 183 if (s->adc_voice[i]) { 184 AUD_close_in(&s->card, s->adc_voice[i]); 185 s->adc_voice[i] = NULL; 186 } 187 for (i = 0; i < OUT_PORT_N; i ++) 188 if (s->dac_voice[i]) { 189 AUD_close_out(&s->card, s->dac_voice[i]); 190 s->dac_voice[i] = NULL; 191 } 192 193 if (!s->enable) 194 return; 195 196 /* Setup input */ 197 in_fmt.endianness = 0; 198 in_fmt.nchannels = 2; 199 in_fmt.freq = s->adc_hz; 200 in_fmt.fmt = AUD_FMT_S16; 201 202 s->adc_voice[0] = AUD_open_in(&s->card, s->adc_voice[0], 203 CODEC ".input1", s, wm8750_audio_in_cb, &in_fmt); 204 s->adc_voice[1] = AUD_open_in(&s->card, s->adc_voice[1], 205 CODEC ".input2", s, wm8750_audio_in_cb, &in_fmt); 206 s->adc_voice[2] = AUD_open_in(&s->card, s->adc_voice[2], 207 CODEC ".input3", s, wm8750_audio_in_cb, &in_fmt); 208 209 /* Setup output */ 210 out_fmt.endianness = 0; 211 out_fmt.nchannels = 2; 212 out_fmt.freq = s->dac_hz; 213 out_fmt.fmt = AUD_FMT_S16; 214 215 s->dac_voice[0] = AUD_open_out(&s->card, s->dac_voice[0], 216 CODEC ".speaker", s, wm8750_audio_out_cb, &out_fmt); 217 s->dac_voice[1] = AUD_open_out(&s->card, s->dac_voice[1], 218 CODEC ".headphone", s, wm8750_audio_out_cb, &out_fmt); 219 /* MONOMIX is also in stereo for simplicity */ 220 s->dac_voice[2] = AUD_open_out(&s->card, s->dac_voice[2], 221 CODEC ".monomix", s, wm8750_audio_out_cb, &out_fmt); 222 /* no sense emulating OUT3 which is a mix of other outputs */ 223 224 wm8750_vol_update(s); 225 226 /* We should connect the left and right channels to their 227 * respective inputs/outputs but we have completely no need 228 * for mixing or combining paths to different ports, so we 229 * connect both channels to where the left channel is routed. */ 230 if (s->in[0] && *s->in[0]) 231 AUD_set_active_in(*s->in[0], 1); 232 if (s->out[0] && *s->out[0]) 233 AUD_set_active_out(*s->out[0], 1); 234 } 235 236 static void wm8750_clk_update(WM8750State *s, int ext) 237 { 238 if (s->master || !s->ext_dac_hz) 239 s->dac_hz = s->rate->dac_hz; 240 else 241 s->dac_hz = s->ext_dac_hz; 242 243 if (s->master || !s->ext_adc_hz) 244 s->adc_hz = s->rate->adc_hz; 245 else 246 s->adc_hz = s->ext_adc_hz; 247 248 if (s->master || (!s->ext_dac_hz && !s->ext_adc_hz)) { 249 if (!ext) 250 wm8750_set_format(s); 251 } else { 252 if (ext) 253 wm8750_set_format(s); 254 } 255 } 256 257 static void wm8750_reset(I2CSlave *i2c) 258 { 259 WM8750State *s = (WM8750State *) i2c; 260 s->rate = &wm_rate_table[0]; 261 s->enable = 0; 262 wm8750_clk_update(s, 1); 263 s->diff[0] = 0; 264 s->diff[1] = 0; 265 s->ds = 0; 266 s->alc = 0; 267 s->in[0] = &s->adc_voice[0]; 268 s->invol[0] = 0x17; 269 s->invol[1] = 0x17; 270 s->invol[2] = 0xc3; 271 s->invol[3] = 0xc3; 272 s->out[0] = &s->dac_voice[0]; 273 s->outvol[0] = 0xff; 274 s->outvol[1] = 0xff; 275 s->outvol[2] = 0x79; 276 s->outvol[3] = 0x79; 277 s->outvol[4] = 0x79; 278 s->outvol[5] = 0x79; 279 s->outvol[6] = 0x79; 280 s->inmute[0] = 0; 281 s->inmute[1] = 0; 282 s->outmute[0] = 0; 283 s->outmute[1] = 0; 284 s->mute = 1; 285 s->path[0] = 0; 286 s->path[1] = 0; 287 s->path[2] = 0; 288 s->path[3] = 0; 289 s->mpath[0] = 0; 290 s->mpath[1] = 0; 291 s->format = 0x0a; 292 s->idx_in = sizeof(s->data_in); 293 s->req_in = 0; 294 s->idx_out = 0; 295 s->req_out = 0; 296 wm8750_vol_update(s); 297 s->i2c_len = 0; 298 } 299 300 static void wm8750_event(I2CSlave *i2c, enum i2c_event event) 301 { 302 WM8750State *s = (WM8750State *) i2c; 303 304 switch (event) { 305 case I2C_START_SEND: 306 s->i2c_len = 0; 307 break; 308 case I2C_FINISH: 309 #ifdef VERBOSE 310 if (s->i2c_len < 2) 311 printf("%s: message too short (%i bytes)\n", 312 __FUNCTION__, s->i2c_len); 313 #endif 314 break; 315 default: 316 break; 317 } 318 } 319 320 #define WM8750_LINVOL 0x00 321 #define WM8750_RINVOL 0x01 322 #define WM8750_LOUT1V 0x02 323 #define WM8750_ROUT1V 0x03 324 #define WM8750_ADCDAC 0x05 325 #define WM8750_IFACE 0x07 326 #define WM8750_SRATE 0x08 327 #define WM8750_LDAC 0x0a 328 #define WM8750_RDAC 0x0b 329 #define WM8750_BASS 0x0c 330 #define WM8750_TREBLE 0x0d 331 #define WM8750_RESET 0x0f 332 #define WM8750_3D 0x10 333 #define WM8750_ALC1 0x11 334 #define WM8750_ALC2 0x12 335 #define WM8750_ALC3 0x13 336 #define WM8750_NGATE 0x14 337 #define WM8750_LADC 0x15 338 #define WM8750_RADC 0x16 339 #define WM8750_ADCTL1 0x17 340 #define WM8750_ADCTL2 0x18 341 #define WM8750_PWR1 0x19 342 #define WM8750_PWR2 0x1a 343 #define WM8750_ADCTL3 0x1b 344 #define WM8750_ADCIN 0x1f 345 #define WM8750_LADCIN 0x20 346 #define WM8750_RADCIN 0x21 347 #define WM8750_LOUTM1 0x22 348 #define WM8750_LOUTM2 0x23 349 #define WM8750_ROUTM1 0x24 350 #define WM8750_ROUTM2 0x25 351 #define WM8750_MOUTM1 0x26 352 #define WM8750_MOUTM2 0x27 353 #define WM8750_LOUT2V 0x28 354 #define WM8750_ROUT2V 0x29 355 #define WM8750_MOUTV 0x2a 356 357 static int wm8750_tx(I2CSlave *i2c, uint8_t data) 358 { 359 WM8750State *s = (WM8750State *) i2c; 360 uint8_t cmd; 361 uint16_t value; 362 363 if (s->i2c_len >= 2) { 364 #ifdef VERBOSE 365 printf("%s: long message (%i bytes)\n", __func__, s->i2c_len); 366 #endif 367 return 1; 368 } 369 s->i2c_data[s->i2c_len ++] = data; 370 if (s->i2c_len != 2) 371 return 0; 372 373 cmd = s->i2c_data[0] >> 1; 374 value = ((s->i2c_data[0] << 8) | s->i2c_data[1]) & 0x1ff; 375 376 switch (cmd) { 377 case WM8750_LADCIN: /* ADC Signal Path Control (Left) */ 378 s->diff[0] = (((value >> 6) & 3) == 3); /* LINSEL */ 379 if (s->diff[0]) 380 s->in[0] = &s->adc_voice[0 + s->ds * 1]; 381 else 382 s->in[0] = &s->adc_voice[((value >> 6) & 3) * 1 + 0]; 383 break; 384 385 case WM8750_RADCIN: /* ADC Signal Path Control (Right) */ 386 s->diff[1] = (((value >> 6) & 3) == 3); /* RINSEL */ 387 if (s->diff[1]) 388 s->in[1] = &s->adc_voice[0 + s->ds * 1]; 389 else 390 s->in[1] = &s->adc_voice[((value >> 6) & 3) * 1 + 0]; 391 break; 392 393 case WM8750_ADCIN: /* ADC Input Mode */ 394 s->ds = (value >> 8) & 1; /* DS */ 395 if (s->diff[0]) 396 s->in[0] = &s->adc_voice[0 + s->ds * 1]; 397 if (s->diff[1]) 398 s->in[1] = &s->adc_voice[0 + s->ds * 1]; 399 s->monomix[0] = (value >> 6) & 3; /* MONOMIX */ 400 break; 401 402 case WM8750_ADCTL1: /* Additional Control (1) */ 403 s->monomix[1] = (value >> 1) & 1; /* DMONOMIX */ 404 break; 405 406 case WM8750_PWR1: /* Power Management (1) */ 407 s->enable = ((value >> 6) & 7) == 3; /* VMIDSEL, VREF */ 408 wm8750_set_format(s); 409 break; 410 411 case WM8750_LINVOL: /* Left Channel PGA */ 412 s->invol[0] = value & 0x3f; /* LINVOL */ 413 s->inmute[0] = (value >> 7) & 1; /* LINMUTE */ 414 wm8750_vol_update(s); 415 break; 416 417 case WM8750_RINVOL: /* Right Channel PGA */ 418 s->invol[1] = value & 0x3f; /* RINVOL */ 419 s->inmute[1] = (value >> 7) & 1; /* RINMUTE */ 420 wm8750_vol_update(s); 421 break; 422 423 case WM8750_ADCDAC: /* ADC and DAC Control */ 424 s->pol = (value >> 5) & 3; /* ADCPOL */ 425 s->mute = (value >> 3) & 1; /* DACMU */ 426 wm8750_vol_update(s); 427 break; 428 429 case WM8750_ADCTL3: /* Additional Control (3) */ 430 break; 431 432 case WM8750_LADC: /* Left ADC Digital Volume */ 433 s->invol[2] = value & 0xff; /* LADCVOL */ 434 wm8750_vol_update(s); 435 break; 436 437 case WM8750_RADC: /* Right ADC Digital Volume */ 438 s->invol[3] = value & 0xff; /* RADCVOL */ 439 wm8750_vol_update(s); 440 break; 441 442 case WM8750_ALC1: /* ALC Control (1) */ 443 s->alc = (value >> 7) & 3; /* ALCSEL */ 444 break; 445 446 case WM8750_NGATE: /* Noise Gate Control */ 447 case WM8750_3D: /* 3D enhance */ 448 break; 449 450 case WM8750_LDAC: /* Left Channel Digital Volume */ 451 s->outvol[0] = value & 0xff; /* LDACVOL */ 452 wm8750_vol_update(s); 453 break; 454 455 case WM8750_RDAC: /* Right Channel Digital Volume */ 456 s->outvol[1] = value & 0xff; /* RDACVOL */ 457 wm8750_vol_update(s); 458 break; 459 460 case WM8750_BASS: /* Bass Control */ 461 break; 462 463 case WM8750_LOUTM1: /* Left Mixer Control (1) */ 464 s->path[0] = (value >> 8) & 1; /* LD2LO */ 465 /* TODO: mute/unmute respective paths */ 466 wm8750_vol_update(s); 467 break; 468 469 case WM8750_LOUTM2: /* Left Mixer Control (2) */ 470 s->path[1] = (value >> 8) & 1; /* RD2LO */ 471 /* TODO: mute/unmute respective paths */ 472 wm8750_vol_update(s); 473 break; 474 475 case WM8750_ROUTM1: /* Right Mixer Control (1) */ 476 s->path[2] = (value >> 8) & 1; /* LD2RO */ 477 /* TODO: mute/unmute respective paths */ 478 wm8750_vol_update(s); 479 break; 480 481 case WM8750_ROUTM2: /* Right Mixer Control (2) */ 482 s->path[3] = (value >> 8) & 1; /* RD2RO */ 483 /* TODO: mute/unmute respective paths */ 484 wm8750_vol_update(s); 485 break; 486 487 case WM8750_MOUTM1: /* Mono Mixer Control (1) */ 488 s->mpath[0] = (value >> 8) & 1; /* LD2MO */ 489 /* TODO: mute/unmute respective paths */ 490 wm8750_vol_update(s); 491 break; 492 493 case WM8750_MOUTM2: /* Mono Mixer Control (2) */ 494 s->mpath[1] = (value >> 8) & 1; /* RD2MO */ 495 /* TODO: mute/unmute respective paths */ 496 wm8750_vol_update(s); 497 break; 498 499 case WM8750_LOUT1V: /* LOUT1 Volume */ 500 s->outvol[2] = value & 0x7f; /* LOUT1VOL */ 501 wm8750_vol_update(s); 502 break; 503 504 case WM8750_LOUT2V: /* LOUT2 Volume */ 505 s->outvol[4] = value & 0x7f; /* LOUT2VOL */ 506 wm8750_vol_update(s); 507 break; 508 509 case WM8750_ROUT1V: /* ROUT1 Volume */ 510 s->outvol[3] = value & 0x7f; /* ROUT1VOL */ 511 wm8750_vol_update(s); 512 break; 513 514 case WM8750_ROUT2V: /* ROUT2 Volume */ 515 s->outvol[5] = value & 0x7f; /* ROUT2VOL */ 516 wm8750_vol_update(s); 517 break; 518 519 case WM8750_MOUTV: /* MONOOUT Volume */ 520 s->outvol[6] = value & 0x7f; /* MONOOUTVOL */ 521 wm8750_vol_update(s); 522 break; 523 524 case WM8750_ADCTL2: /* Additional Control (2) */ 525 break; 526 527 case WM8750_PWR2: /* Power Management (2) */ 528 s->power = value & 0x7e; 529 /* TODO: mute/unmute respective paths */ 530 wm8750_vol_update(s); 531 break; 532 533 case WM8750_IFACE: /* Digital Audio Interface Format */ 534 s->format = value; 535 s->master = (value >> 6) & 1; /* MS */ 536 wm8750_clk_update(s, s->master); 537 break; 538 539 case WM8750_SRATE: /* Clocking and Sample Rate Control */ 540 s->rate = &wm_rate_table[(value >> 1) & 0x1f]; 541 wm8750_clk_update(s, 0); 542 break; 543 544 case WM8750_RESET: /* Reset */ 545 wm8750_reset(&s->i2c); 546 break; 547 548 #ifdef VERBOSE 549 default: 550 printf("%s: unknown register %02x\n", __FUNCTION__, cmd); 551 #endif 552 } 553 554 return 0; 555 } 556 557 static int wm8750_rx(I2CSlave *i2c) 558 { 559 return 0x00; 560 } 561 562 static void wm8750_pre_save(void *opaque) 563 { 564 WM8750State *s = opaque; 565 566 s->rate_vmstate = s->rate - wm_rate_table; 567 } 568 569 static int wm8750_post_load(void *opaque, int version_id) 570 { 571 WM8750State *s = opaque; 572 573 s->rate = &wm_rate_table[s->rate_vmstate & 0x1f]; 574 return 0; 575 } 576 577 static const VMStateDescription vmstate_wm8750 = { 578 .name = CODEC, 579 .version_id = 0, 580 .minimum_version_id = 0, 581 .minimum_version_id_old = 0, 582 .pre_save = wm8750_pre_save, 583 .post_load = wm8750_post_load, 584 .fields = (VMStateField []) { 585 VMSTATE_UINT8_ARRAY(i2c_data, WM8750State, 2), 586 VMSTATE_INT32(i2c_len, WM8750State), 587 VMSTATE_INT32(enable, WM8750State), 588 VMSTATE_INT32(idx_in, WM8750State), 589 VMSTATE_INT32(req_in, WM8750State), 590 VMSTATE_INT32(idx_out, WM8750State), 591 VMSTATE_INT32(req_out, WM8750State), 592 VMSTATE_UINT8_ARRAY(outvol, WM8750State, 7), 593 VMSTATE_UINT8_ARRAY(outmute, WM8750State, 2), 594 VMSTATE_UINT8_ARRAY(invol, WM8750State, 4), 595 VMSTATE_UINT8_ARRAY(inmute, WM8750State, 2), 596 VMSTATE_UINT8_ARRAY(diff, WM8750State, 2), 597 VMSTATE_UINT8(pol, WM8750State), 598 VMSTATE_UINT8(ds, WM8750State), 599 VMSTATE_UINT8_ARRAY(monomix, WM8750State, 2), 600 VMSTATE_UINT8(alc, WM8750State), 601 VMSTATE_UINT8(mute, WM8750State), 602 VMSTATE_UINT8_ARRAY(path, WM8750State, 4), 603 VMSTATE_UINT8_ARRAY(mpath, WM8750State, 2), 604 VMSTATE_UINT8(format, WM8750State), 605 VMSTATE_UINT8(power, WM8750State), 606 VMSTATE_UINT8(rate_vmstate, WM8750State), 607 VMSTATE_I2C_SLAVE(i2c, WM8750State), 608 VMSTATE_END_OF_LIST() 609 } 610 }; 611 612 static int wm8750_init(I2CSlave *i2c) 613 { 614 WM8750State *s = FROM_I2C_SLAVE(WM8750State, i2c); 615 616 AUD_register_card(CODEC, &s->card); 617 wm8750_reset(&s->i2c); 618 619 return 0; 620 } 621 622 #if 0 623 static void wm8750_fini(I2CSlave *i2c) 624 { 625 WM8750State *s = (WM8750State *) i2c; 626 wm8750_reset(&s->i2c); 627 AUD_remove_card(&s->card); 628 g_free(s); 629 } 630 #endif 631 632 void wm8750_data_req_set(DeviceState *dev, 633 void (*data_req)(void *, int, int), void *opaque) 634 { 635 WM8750State *s = FROM_I2C_SLAVE(WM8750State, I2C_SLAVE(dev)); 636 s->data_req = data_req; 637 s->opaque = opaque; 638 } 639 640 void wm8750_dac_dat(void *opaque, uint32_t sample) 641 { 642 WM8750State *s = (WM8750State *) opaque; 643 644 *(uint32_t *) &s->data_out[s->idx_out] = sample; 645 s->req_out -= 4; 646 s->idx_out += 4; 647 if (s->idx_out >= sizeof(s->data_out) || s->req_out <= 0) 648 wm8750_out_flush(s); 649 } 650 651 void *wm8750_dac_buffer(void *opaque, int samples) 652 { 653 WM8750State *s = (WM8750State *) opaque; 654 /* XXX: Should check if there are <i>samples</i> free samples available */ 655 void *ret = s->data_out + s->idx_out; 656 657 s->idx_out += samples << 2; 658 s->req_out -= samples << 2; 659 return ret; 660 } 661 662 void wm8750_dac_commit(void *opaque) 663 { 664 WM8750State *s = (WM8750State *) opaque; 665 666 wm8750_out_flush(s); 667 } 668 669 uint32_t wm8750_adc_dat(void *opaque) 670 { 671 WM8750State *s = (WM8750State *) opaque; 672 uint32_t *data; 673 674 if (s->idx_in >= sizeof(s->data_in)) 675 wm8750_in_load(s); 676 677 data = (uint32_t *) &s->data_in[s->idx_in]; 678 s->req_in -= 4; 679 s->idx_in += 4; 680 return *data; 681 } 682 683 void wm8750_set_bclk_in(void *opaque, int new_hz) 684 { 685 WM8750State *s = (WM8750State *) opaque; 686 687 s->ext_adc_hz = new_hz; 688 s->ext_dac_hz = new_hz; 689 wm8750_clk_update(s, 1); 690 } 691 692 static void wm8750_class_init(ObjectClass *klass, void *data) 693 { 694 DeviceClass *dc = DEVICE_CLASS(klass); 695 I2CSlaveClass *sc = I2C_SLAVE_CLASS(klass); 696 697 sc->init = wm8750_init; 698 sc->event = wm8750_event; 699 sc->recv = wm8750_rx; 700 sc->send = wm8750_tx; 701 dc->vmsd = &vmstate_wm8750; 702 } 703 704 static const TypeInfo wm8750_info = { 705 .name = "wm8750", 706 .parent = TYPE_I2C_SLAVE, 707 .instance_size = sizeof(WM8750State), 708 .class_init = wm8750_class_init, 709 }; 710 711 static void wm8750_register_types(void) 712 { 713 type_register_static(&wm8750_info); 714 } 715 716 type_init(wm8750_register_types) 717